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1

Data Collection for Improved Cold Temperature Thermal Modeling...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

More Documents & Publications Data Collection for Improved Cold Temperature Thermal Modeling Energy Management Strategies for Fast Battery Temperature Rise and Engine...

2

Extreme Cold Weather Warning Recent subzero wind chill temperatures have understandably brought cold stress to a heighten  

E-Print Network (OSTI)

Extreme Cold Weather Warning Recent subzero wind chill temperatures have understandably brought for Disease Control and Prevention advise that if you are going outside in extreme cold, dress appropriately. Workers who are exposed to extreme cold or work in cold environments may be at risk of cold stress

Cantlon, Jessica F.

3

Colds  

NLE Websites -- All DOE Office Websites (Extended Search)

Colds Colds Name: John Smith Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: What causes colds and how can they be cured? Replies: Colds are caused by a virus (rhinovirus) that invades the membranes of the nose and trachea (the windpipe). The symptoms that we call a "cold" are mostly the body's attempts to get rid of the virus. There is not a cure for the cold you just wait for the body's immune system (defense system) to get rid of the virus. You can treat the symptoms, though aspirin for fever, antihistamines to clear up congestion in the nose, etc. Sometimes, after a bad cold, you can get bronchitis, where bacteria invade the windpipe and lungs because the cold made them more susceptible. This can be treated with antibiotics, which kill bacteria, but not viruses

4

Mechanical properties of cold-rolled AISI 304LN steel at low temperatures  

SciTech Connect

Mechanical properties of 0--70% cold-rolled AISI 304LN steel (0, 16 wt.% N) were investigated by means of tensile and Charpy V-notch impact tests between room temperature and {minus}196 C. Fracture surfaces of the tested specimens were investigated using SEM (scanning electron microscope). Austenite stability against {alpha}{prime}-martensite formation during cooling and during deformation in cold-rolling and mechanical testing was determined using magnetic measurements.

Ilola, R.J.; Haenninen, H.E. [Helsinki Univ. of Technology, Espoo (Finland). Lab. of Engineering Materials; Heinaekari, M.J. [Kvaerner Masa-Yards Oy, Turku (Finland)

1996-12-01T23:59:59.000Z

5

Body temperature regulation during acclimation to cold and hypoxia in rats  

Science Journals Connector (OSTI)

Abstract Extreme environmental conditions present challenges for thermoregulation in homoeothermic organisms such as mammals. Such challenges are exacerbated when two stressors are experienced simultaneously and each stimulus evokes opposing physiological responses. This is the case of cold, which induces an increase in thermogenesis, and hypoxia, which suppresses metabolism conserving oxygen and preventing hypoxaemia. As an initial approach to understanding the thermoregulatory responses to cold and hypoxia in a small mammal, we explored the effects of acclimation to these two stressors on the body temperature (Tb) and the daily and ultradian Tb variations of Sprague-Dawley rats. As Tb is influenced by sleep-wake cycles, these Tb variations reflect underlying adjustments in set-point and thermosensitivity. The Tb of rats decreased precipitously during initial hypoxic exposure which was more pronounced in cold (Tb=33.4±0.13) than in room temperature (Tb=35.74±0.17) conditions. This decline was followed by an increase in Tb stabilising at a new level ~0.5 °C and ~1.4 °C below normoxic values at room and cold temperatures, respectively. Daily Tb variations were blunted during hypoxia with a greater effect in the cold. Ultradian Tb variations exhibited daily rhythmicity that disappeared under hypoxia, independent of ambient temperature. The adjustments in Tb during hypoxia and/or cold are in agreement with the hypothesis that an initial decrease in the Tb set-point is followed by its partial re-establishment with chronic hypoxia. This rebound of the Tb set-point might reflect cellular adjustments that would allow animals to better deal with low oxygen conditions, diminishing the drive for a lower Tb set-point. Cold and hypoxia are characteristic of high altitude environments. Understanding how mammals cope with changes in oxygen and temperature will shed light into their ability to colonize new environments along altitudinal clines and increase our understanding of how Tb is regulated under stimuli that impose contrasting physiological constraints.

V. Cadena; G.J. Tattersall

2014-01-01T23:59:59.000Z

6

Cold Temperature and Biodiesel Fuel Effects on Speciated Emissions of Volatile Organic Compounds from Diesel Trucks  

Science Journals Connector (OSTI)

Emissions testing was conducted on a chassis dynamometer at two ambient temperatures (?7 and 22 °C) operating on two fuels (ultra low sulfur diesel and 20% soy biodiesel blend) over three driving cycles: cold start, warm start and heavy-duty urban dynamometer driving cycle. ... Different 2007+ aftertreatment technologies involving catalyst regeneration led to significant modifications of VOC emissions that were compound-specific and highly dependent on test conditions. ... However, emissions of other toxic partial combustion products such as carbonyls were not reduced in the modern diesel vehicles tested. ...

Ingrid J. George; Michael D. Hays; Richard Snow; James Faircloth; Barbara J. George; Thomas Long; Richard W. Baldauf

2014-11-13T23:59:59.000Z

7

Common marginal cold pools  

Science Journals Connector (OSTI)

This study examines marginal cold pools forming in a shallow valley. “Marginal” refers to cold pools that are generally weak and intermittent. Nineteen stations were instrumented with sonic anemometers and accurate slow-response temperature ...

L. Mahrt; Robert Heald

8

Study of cold nuclear fusion with electrolysis at low-temperature range  

Science Journals Connector (OSTI)

We carried out an electrolysis by changing the temperature from ?80°C to room temperature in order to create a dynamic condition in the electrode. No neutron emission was observed from the palladium and the ti...

Y. Nakamitsu; M. Chiba; K. Fukushima; T. Hirose; K. Kubo; M. Fujii…

1994-01-01T23:59:59.000Z

9

Effects of Soil Moisture on the Responses of Soil Temperatures to Climate Change in Cold Regions  

Science Journals Connector (OSTI)

At high latitudes, changes in soil moisture could alter soil temperatures independently of air temperature changes by interacting with the snow thermal rectifier. The authors investigated this mechanism with model experiments in the Community Land ...

Zachary M. Subin; Charles D. Koven; William J. Riley; Margaret S. Torn; David M. Lawrence; Sean C. Swenson

2013-05-01T23:59:59.000Z

10

Atomic dynamics in molten AlCu alloys of different compositions and at different temperatures by cold neutron scattering  

SciTech Connect

The atomic motions in molten Al1?xCux (x=0.10, 0.171 and 0.25) around the eutectic composition (x=0.171) were studied by cold neutron inelastic scattering at three different temperatures (973 K, 1173 K and 1373 K). An alloy of eutectic composition containing the 63Cu isotope was also studied. Self-diffusion coefficients for the Cu ions were determined from the width of quasielastic peaks and were found to decrease slightly with increasing Cu concentration. Longitudinal current correlation functions Jl(Q,E) exhibit at all temperatures and at all compositions a shoulder at energies below 10 meV and one main maximum at higher energies. These features can be interpreted in terms of excitations of acoustic and optic nature. The shape of Jl(Q,E) is sensitive to composition, being considerably more structured for larger Cu content. This can be coupled to the existence of a prepeak in the measured zeroth moment of dynamic scattering function indicating an increased chemical ordering with increasing Cu concentration for all temperatures. Indications for an existence of a liquid–liquid phase transition are presented.

Dahlborg, U. [University of Rouen; Besser, M. [Ames Laboratory; Kramer, Matthew J. [Ames Laboratory; Morris, J. R. [Oak Ridge National Laboratory; Calvo-Dahlborg, M. [University of Rouen

2013-12-21T23:59:59.000Z

11

Energy analysis of a personalized ventilation system in a cold climate: influence of the supplied air temperature  

E-Print Network (OSTI)

Figure 2). The supply temperature and its control strategyAir supply Control strategy of temper. a temperature the aircontrol over the temperature of the supplied personalized air, the building manager has to define the air supply temperature (

Schiavon, Stefano; Melikov, Arsen

2008-01-01T23:59:59.000Z

12

DSM to predict distortional failures in cold-formed steel columns exposed to fire: Effect of the constitutive law temperature-dependence  

Science Journals Connector (OSTI)

Abstract This paper presents a numerical (shell finite element) investigation aimed at assessing the performance of the current Direct Strength Method (DSM) provisions against distortional failure to estimate the ultimate strength of fixed-ended cold-formed steel lipped channel and rack-section columns (i) subjected to various uniform temperature distributions caused by fire conditions and (ii) exhibiting different room-temperature yield stresses, covering a wide distortional slenderness range. In particular, the work addresses how does the temperature-dependence of the steel material behaviour, which is felt through both the (reduced) Young’s modulus and nominal yield stress values, influences the quality (accuracy and safety) of the column ultimate strength predictions provided by the DSM distortional strength curve. Six different temperature-dependent steel constitutive laws are considered, namely (i) two models prescribed in part 1.2 of Eurocode 3 (EC3), for cold-formed and hot-rolled steel, and (ii) four experimentally-based analytical expressions recently reported in the literature. The DSM column ultimate strength estimates are compared with the numerical failure loads obtained through geometrically and physically non-linear Ansys shell finite element analyses incorporating critical-mode initial imperfections with small amplitudes.

A. Landesmann; D. Camotim

2015-01-01T23:59:59.000Z

13

Fracture toughness of CIP-HIP (cold isostatic pressed - hot isostatic pressed) beryllium at elevated temperatures. Final report, 13 May 1980-13 February 1981  

SciTech Connect

The fracture toughness of CIP-HIP (cold isostatic pressed-hot isostatic pressed) beryllium was determined using the short-bar fracture-toughness (K/sub IcSB/) method. The K/sub IcSB/ value measured was 10.96 MPa x the square root of m at room temperature. This falls well within the expected range of 9 to 12 MPa x the square root of m as observed from previous fracture toughness measurements of beryllium. Toughness increased rapidly between 400 F and 500 F reaching a value of 16.7 MPa x the square root of m at 500 F.

Barker, L.M.; Jones, A.H.

1986-04-01T23:59:59.000Z

14

cold standby  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Cold Standby Program at the Cold Standby Program at the Portsmouth Gaseous Diffusion Plant DOE/IG-0634 December 2003 Program Results and Cost Details of Finding ...................................................................... 1 Recommendations and Comments ........................................... 5 Appendices Prior Reports .............................................................................. 7 Objective, Scope, and Methodology .......................................... 8 Management Comments .......................................................... 10 COLD STANDBY PROGRAM AT THE PORTSMOUTH GASEOUS DIFFUSION PLANT TABLE OF CONTENTS Page 1 Program Plans The Department has not clearly defined the termination point of the Cold Standby Program. Initially, the Department's Office of Nuclear

15

Clothing temperature changes of phase change material-treated warm-up in cold and warm environments  

Science Journals Connector (OSTI)

The purpose of this study was to investigate the appropriate amounts of phase change materials to give objective and subjective wear sensations. ... much higher temperature than in WR. Saliva change did not appea...

Kyeyoun Choi; Hyejin Chung; Boram Lee; Kyunghee Chung; Gilsoo Cho…

2005-12-01T23:59:59.000Z

16

A new absorption chiller to establish combined cold, heat, and power generation utilizing low-temperature heat  

SciTech Connect

Presently available absorption machines for air conditioning are driven with heat of a minimum of 80 C (176 F). A combination of the standard single-effect and a double-lift process has been identified as a new cycle that can use driving heat down to return temperatures of about 55 C (131 F) and permits temperature glides in generation of more than 30 K (54 F). Thus a larger cooling capacity can be produced from the same heat source compared to a single-effect chiller run with the same heat carrier supply temperature and mass flow. According to the estimated heat exchanger area, competitive machine costs for this new chiller can be expected. This single-effect/double-lift absorption chiller can be operated with waste heat from industrial processes, as well as with low-temperature heat (e.g., heat from solar collectors) as driving heat for air conditioning. The large temperature glide and the low return temperature especially fit the operating conditions in district heating networks during the summer. The cycle will be presented, followed by a discussion of suitable operating conditions.

Schweigler, C.J.; Riesch, P.; Demmel, S.; Alefeld, G. [ZAE Bayern, Garching/Muenchen (Germany)

1996-11-01T23:59:59.000Z

17

Cold moderators at ORNL  

SciTech Connect

The Advanced Neutron Source (ANS) cold moderators were not an 'Oak Ridge first', but would have been the largest both physically and in terms of cold neutron flux. Two cold moderators were planned each 410 mm in diameter and containing about 30L of liquid deuterium. They were to be completely independent of each other. A modular system design was used to provide greater reliability and serviceability. When the ANS was terminated, up–grading of the resident High Flux Isotope Reactor (HFIR) was examined and an initial study was made into the feasibility of adding a cold source. Because the ANS design was modular, it was possible to use many identical design features. Sub-cooled liquid at 4 bar abs was initially chosen for the HFIR design concept, but this was subsequently changed to 15 bar abs to operate above the critical pressure. As in the ANS, the hydrogen will operate at a constant pressure throughout the temperature range and a completely closed loop with secondary containment was adopted. The heat load of 2 kW made the heat flux comparable with that of the ANS. Subsequent studies into the construction of cryogenic moderators for the proposed new Synchrotron Neutron source indicated that again many of the same design concepts could be used. By connecting the two cold sources together in series, the total heat load of 2 kW is very close to that of the HFIR allowing a very similar supercritical hydrogen system to be configured. The two hydrogen moderators of the SNS provide a comparable heat load to the HFIR moderator. It is subsequently planned to connect the two in series and operate from a single cold loop system, once again using supercritical hydrogen. The spallation source also provided an opportunity to re-examine a cold pellet solid methane moderator operating at 20K.

Lucas, A. T.

1997-09-01T23:59:59.000Z

18

Alaska District, lab partner on cold regions work Subzero temperatures and limited daylight shorten the work season in northern regions. Add  

E-Print Network (OSTI)

and innovative solutions in engineering, construction and operations in cold regions. The partnership between, CRREL was the technical lead for the U.S. Army-Alaska for a white phosphorous analysis and remediation

US Army Corps of Engineers

19

A LINGERING NON-THERMAL COMPONENT IN THE GAMMA-RAY BURST PROMPT EMISSION: PREDICTING GeV EMISSION FROM THE MeV SPECTRUM  

SciTech Connect

The high-energy GeV emission of gamma-ray bursts (GRBs) detected by Fermi/LAT has a significantly different morphology compared to the lower energy MeV emission detected by Fermi/GBM. Though the late-time GeV emission is believed to be synchrotron radiation produced via an external shock, this emission as early as the prompt phase is puzzling. A meaningful connection between these two emissions can be drawn only by an accurate description of the prompt MeV spectrum. We perform a time-resolved spectroscopy of the Gamma-ray Burst Monitor (GBM) data of long GRBs with significant GeV emission, using a model consisting of two blackbodies and a power law. We examine in detail the evolution of the spectral components and find that GRBs with high GeV emission (GRB 090902B and GRB 090926A) have a delayed onset of the power-law component in the GBM spectrum, which lingers at the later part of the prompt emission. This behavior mimics the flux evolution in the Large Area Telescope (LAT). In contrast, bright GBM GRBs with an order of magnitude lower GeV emission (GRB 100724B and GRB 091003) show a coupled variability of the total and the power-law flux. Further, by analyzing the data for a set of 17 GRBs, we find a strong correlation between the power-law fluence in the MeV and the LAT fluence (Pearson correlation: r = 0.88 and Spearman correlation: ? = 0.81). We demonstrate that this correlation is not influenced by the correlation between the total and the power-law fluences at a confidence level of 2.3?. We speculate the possible radiation mechanisms responsible for the correlation.

Basak, Rupal; Rao, A. R., E-mail: rupalb@tifr.res.in, E-mail: arrao@tifr.res.in [Tata Institute of Fundamental Research, Mumbai 400005 (India)

2013-09-20T23:59:59.000Z

20

Problem of cold accumulation as a matter of energy saving and optimization of energy consumption  

Science Journals Connector (OSTI)

It is shown that the problem of cold accumulation is complicated, and the importance of cold carriers, the temperature of generated and accumulated cold, methods of its utilization, and particularly for large ...

A. M. Arkharov; A. I. Leont’ev; V. V. Sychev…

2009-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Manhattan Project: The Cold War, 1945-1990  

Office of Scientific and Technical Information (OSTI)

West Berliner talks to the East, Berlin Wall, November 1962 THE COLD WAR West Berliner talks to the East, Berlin Wall, November 1962 THE COLD WAR (1945-1990) Events > Postscript -- The Nuclear Age, 1945-Present Informing the Public, August 1945 The Manhattan Engineer District, 1945-1946 First Steps toward International Control, 1944-1945 Search for a Policy on International Control, 1945 Negotiating International Control, 1945-1946 Civilian Control of Atomic Energy, 1945-1946 Operation Crossroads, July 1946 The VENONA Intercepts, 1946-1980 The Cold War, 1945-1990 Nuclear Proliferation, 1949-present Joseph Stalin (with Vyacheslav Molotov), February 1945 The postwar organization of atomic energy took place against the backdrop of growing tension with the Soviet Union. Relations between the United States and the Soviet Union had been strained ever since the revolution of 1917 had first brought communists to power in Russia. This mutual distrust further deepened following the Soviet "non-aggression" treaty with Nazi Germany in August 1939 and the Soviet Union's subsequent invasions of Poland, Finland, and the Baltic Republics. Although Britain was allied with the Soviet Union following Germany's June 1941 invasion of Russia, as was the United States in the aftermath of Pearl Harbor, mutual suspicion lingered throughout the Second World War. The failure of the United States and Britain to tell the Soviet Union about the atomic bomb in anything other than the most vague terms only heightened the extreme suspicions of the Soviet dictator, Joseph Stalin (right). Not only did the atomic bombings of Hiroshima and Nagasaki help end the Second World War, but they also played a role in setting the stage for the half-century of conflict with the Soviet Union that followed it -- the Cold War.

22

PHYSICAL REVIEW E 85, 061201 (2012) Temperature-difference-driven mass transfer through the vapor from a cold to a warm liquid  

E-Print Network (OSTI)

.1103/PhysRevE.85.061201 PACS number(s): 05.70.Np, 05.70.Ln, 64.70.fm I. INTRODUCTION ConditionsPHYSICAL REVIEW E 85, 061201 (2012) Temperature-difference-driven mass transfer through the vapor. The interfacial jumps allow unexpected transport phenomena, such as the inverted temperature profile [Pao, Phys

Struchtrup, Henning

23

Cold isopressing method  

DOE Patents (OSTI)

A cold isopressing method in which two or more layers of material are formed within an isopressing mold. One of the layers consists of a tape-cast film. The layers are isopressed within the isopressing mold, thereby to laminate the layers and to compact the tape-cast film. The isopressing mold can be of cylindrical configuration with the layers being coaxial cylindrical layers. The materials used in forming the layers can contain green ceramic materials and the resultant structure can be fired and sintered as necessary and in accordance with known methods to produce a finished composite, ceramic structure. Further, such green ceramic materials can be of the type that are capable of conducting hydrogen or oxygen ions at high temperature with the object of utilizing the finished composite ceramic structure as a ceramic membrane element.

Chen, Jack C. (Getzville, NY); Stawisuck, Valerie M. (North Tonawanda, NY); Prasad, Ravi (East Amherst, NY)

2003-01-01T23:59:59.000Z

24

Ultra-cold molecule production.  

SciTech Connect

The production of Ultra-cold molecules is a goal of many laboratories through out the world. Here we are pursuing a unique technique that utilizes the kinematics of atomic and molecular collisions to achieve the goal of producing substantial numbers of sub Kelvin molecules confined in a trap. Here a trap is defined as an apparatus that spatially localizes, in a known location in the laboratory, a sample of molecules whose temperature is below one degree absolute Kelvin. Further, the storage time for the molecules must be sufficient to measure and possibly further cool the molecules. We utilize a technique unique to Sandia to form cold molecules from near mass degenerate collisions between atoms and molecules. This report describes the progress we have made using this novel technique and the further progress towards trapping molecules we have cooled.

Ramirez-Serrano, Jamie; Chandler, David W.; Strecker, Kevin; Rahn, Larry A.

2005-12-01T23:59:59.000Z

25

Materials for cold neutron sources: Cryogenic and irradiation effects  

SciTech Connect

Materials for the construction of cold neutron sources must satisfy a range of demands. The cryogenic temperature and irradiation create a severe environment. Candidate materials are identified and existing cold sources are briefly surveyed to determine which materials may be used. Aluminum- and magnesium-based alloys are the preferred materials. Existing data for the effects of cryogenic temperature and near-ambient irradiation on the mechanical properties of these alloys are briefly reviewed, and the very limited information on the effects of cryogenic irradiation are outlined. Generating mechanical property data under cold source operating conditions is a daunting prospect. It is clear that the cold source material will be degraded by neutron irradiation, and so the cold source must be designed as a brittle vessel. The continued effective operation of many different cold sources at a number of reactors makes it clear that this can be accomplished. 46 refs., 8 figs., 2 tab.

Alexander, D.J.

1990-01-01T23:59:59.000Z

26

Cold fusion research  

Science Journals Connector (OSTI)

Cold fusion research ... Eugene Mallove (C&EN, Feb. 10, page 2) accuses Trevor Pinch and me of "arrogant misunderstanding of cold fusion research/' Casting his net further, he then accuses the scientific establishment and some science media of "arrogant dismissal" of a "new phenomenon of unparalleled signficance," because we regard it as "a priori impossible." ... The latter, at least, is untrue, as should be apparent to anyone who read even the first three pages of 'Too Hot to Handle," where I wrote, 'liven though intuitive[ ly we felt] that [cold fusion] was too far-fetched to be real, nonetheless it had to be checked." ...

FRANK E. CLOSE

1992-04-13T23:59:59.000Z

27

Reviving Cold Fusion  

Science Journals Connector (OSTI)

Reviving Cold Fusion ... In March 1989, electrochemists B. Stanley Pons and Martin Fleischmann announced at a press conference at the University of Utah that they had tamed the power of nuclear fusion in a benchtop electrolysis experiment. ... The discovery of cold fusion, as it came to be called, held the promise of endless amounts of pollution-free energy being generated from the natural deuterium in water. ...

STEPHEN K. RITTER

2012-05-14T23:59:59.000Z

28

Cold Fusion Fiasco  

Science Journals Connector (OSTI)

Cold Fusion Fiasco ... When two chemists, B. Stanley Pons and Martin Fleischmann, announced to the world's press on March 23, 1989, that they had discovered fusion in a test tube, they launched the equivalent of a scientific gold rush. ... Within a day of that infamous Utah press conference, physicist Stephen Jones at nearby Brigham Young University claimed that he, too, had been detecting neutrons from a cold fusion cell. ...

TREVOR PINCH

1992-01-13T23:59:59.000Z

29

Cold atmospheric plasma in cancer therapy  

SciTech Connect

Recent progress in atmospheric plasmas has led to the creation of cold plasmas with ion temperature close to room temperature. This paper outlines recent progress in understanding of cold plasma physics as well as application of cold atmospheric plasma (CAP) in cancer therapy. Varieties of novel plasma diagnostic techniques were developed recently in a quest to understand physics of CAP. It was established that the streamer head charge is about 10{sup 8} electrons, the electrical field in the head vicinity is about 10{sup 7} V/m, and the electron density of the streamer column is about 10{sup 19} m{sup ?3}. Both in-vitro and in-vivo studies of CAP action on cancer were performed. It was shown that the cold plasma application selectively eradicates cancer cells in-vitro without damaging normal cells and significantly reduces tumor size in-vivo. Studies indicate that the mechanism of action of cold plasma on cancer cells is related to generation of reactive oxygen species with possible induction of the apoptosis pathway. It is also shown that the cancer cells are more susceptible to the effects of CAP because a greater percentage of cells are in the S phase of the cell cycle.

Keidar, Michael; Shashurin, Alex; Volotskova, Olga [Mechanical and Aerospace Engineering, George Washington University, Washington DC 20052 (United States)] [Mechanical and Aerospace Engineering, George Washington University, Washington DC 20052 (United States); Ann Stepp, Mary [Medical School, George Washington University, Washington DC 20052 (United States)] [Medical School, George Washington University, Washington DC 20052 (United States); Srinivasan, Priya; Sandler, Anthony [Childrens National Medical Center, Washington DC 20010 (United States)] [Childrens National Medical Center, Washington DC 20010 (United States); Trink, Barry [Head and Neck Cancer Research Division, Department of Otolaryngology, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205 (United States)] [Head and Neck Cancer Research Division, Department of Otolaryngology, School of Medicine, Johns Hopkins University, Baltimore, Maryland 21205 (United States)

2013-05-15T23:59:59.000Z

30

Cold fusion lab dies, but fusion research goes on  

Science Journals Connector (OSTI)

Cold fusion lab dies, but fusion research goes on ... that deuterium nuclei can fuse at or near room temperature inside a metal lattice to produce useful energy, is an idea that refuses to die, despite its rejection by mainstream scientists. ...

1991-07-01T23:59:59.000Z

31

Numerical Analysis of a Cold Air Distribution System  

E-Print Network (OSTI)

Cold air distribution systems may reduce the operating energy consumption of air-conditioned air supply system and improve the outside air volume percentages and indoor air quality. However, indoor temperature patterns and velocity field are easily...

Zhu, L.; Li, R.; Yuan, D.

2006-01-01T23:59:59.000Z

32

Thermal comfort and cold air distribution  

SciTech Connect

Cold air distribution systems supply air at temperatures between 38 F and 51 F. Cold air distribution systems are increasingly attractive when used in conjunction with ice storage systems to shave peak load by shifting the demand to off-peak hours. They also require less operating and capital costs because they use smaller fans, ducts, piping, and pumps. However, an important issue in design and application of cold air systems is the effect on occupant comfort. There are several techniques and methodologies that practitioners use for evaluation of conventional air distribution systems. Among these is the Air Diffusion Performance Index (ADPI). It is widely used in the US and is referenced in the 1993 ASHRAE Handbook--Fundamentals. However, this technique is based on empirical correlations obtained from tests conducted with conventional systems and it cannot be guaranteed that they will be equally applicable to cold air systems. This study was undertaken, therefore, to extend the existing techniques (especially the Air Diffusion Performance Index) to applications where cold air distribution systems are utilized. This work presents a critical review of the evolution of the ADPI technique and offers several recommendations for developing a firm foundation for future room air distribution research.

Hassani, V. [National Renewable Energy Lab., Golden, CO (United States); Miller, P.L. [Miller (Paul), Arvada, CO (United States)

1998-10-01T23:59:59.000Z

33

Cold-blooded and warm-blooded  

NLE Websites -- All DOE Office Websites (Extended Search)

Cold-blooded and warm-blooded Cold-blooded and warm-blooded Name: Walter Status: N/A Age: N/A Location: N/A Country: N/A Date: Around 1993 Question: What is the fundamental difference between cold-blooded and warm- blooded creatures? I know that reptile blood is a bit different than mammal blood, but is that the difference or is it a difference in the other cells of the body? Replies: Warm blooded refers to an animals ability to maintain its body temperature at a constant level. Cold blooded animal's bodies stay at the temperature of environment around them (more or less). The mechanism by which a warm blooded animal does this is by generating heat, mostly through muscle movement (but by other biochemical processes too). An example of this is shivering. Warm blooded animals also cool themselves off by sweating, panting (and other ways). In mammals the hypothalamic area of the brain has much to do with controlling these reflex processes

34

Solid Cold - C  

Office of Scientific and Technical Information (OSTI)

C. Temperature and energy Most basically, temperature is related to energy flow. If you have two things at different temperatures, and you put them together so that heat can flow...

35

Cold condensation of dust in the ISM  

E-Print Network (OSTI)

The condensation of complex silicates with pyroxene and olivine composition at conditions prevailing in molecular clouds has been experimentally studied. For this purpose, molecular species comprising refractory elements were forced to accrete on cold substrates representing the cold surfaces of surviving dust grains in the interstellar medium. The efficient formation of amorphous and homogeneous magnesium iron silicates at temperatures of about 12 K has been monitored by IR spectroscopy. The gaseous precursors of such condensation processes in the interstellar medium are formed by erosion of dust grains in supernova shock waves. In the laboratory, we have evaporated glassy silicate dust analogs and embedded the released species in neon ice matrices that have been studied spectroscopically to identify the molecular precursors of the condensing solid silicates. A sound coincidence between the 10 micron band of the interstellar silicates and the 10 micron band of the low-temperature siliceous condensates can be...

Rouillé, Gaël; Krasnokutski, Serge A; Krebsz, Melinda; Henning, Thomas

2015-01-01T23:59:59.000Z

36

Combined cold compressor/ejector helium refrigerator  

DOE Patents (OSTI)

A refrigeration apparatus having an ejector operatively connected with a cold compressor to form a two-stage pumping system. This pumping system is used to lower the pressure, and thereby the temperature of a bath of boiling refrigerant (helium). The apparatus as thus arranged and operated has substantially improved operating efficiency when compared to other processes or arrangements for achieving a similar low pressure.

Brown, Donald P. (Southold, NY)

1985-01-01T23:59:59.000Z

37

Combined cold compressor/ejector helium refrigerator  

DOE Patents (OSTI)

A refrigeration apparatus having an ejector operatively connected with a cold compressor to form a two-stage pumping system. This pumping system is used to lower the pressure, and thereby the temperature of a bath of boiling refrigerant (helium). The apparatus as thus arranged and operated has substantially improved operating efficiency when compared to other processes or arrangements for achieving a similar low pressure.

Brown, D.P.

1984-06-05T23:59:59.000Z

38

Cold Weather Hazards  

NLE Websites -- All DOE Office Websites (Extended Search)

0 0 Cold Weather Hazards June 2010 NSA_cwh_Rev10.doc 1 Atmospheric Radiation Measurement Climate Research Facility/ North Slope of Alaska/Adjacent Arctic Ocean (ACRF/NSA/AAO) Cold Weather Hazards Winter Conditions at the North Slope of Alaska The North Slope of Alaska is north of the Arctic Circle at latitudes ranging from 69 to 72 degrees. Barrow, the largest town on the North Slope (pop. 4500), is the site of a National Weather Service Station, which has been active for several decades, so the climatology of the Alaska arctic coastal region as represented by Barrow is relatively well known. The North Slope is covered with ice and snow typically eight months of the year (October-May). During part of November, all of December, and most of January, the sun does not come above the horizon; this

39

Cold nuclear fusion  

SciTech Connect

Recent accelerator experiments on fusion of various elements have clearly demonstrated that the effective cross-sections of these reactions depend on what material the target particle is placed in. In these experiments, there was a significant increase in the probability of interaction when target nuclei are imbedded in a conducting crystal or are a part of it. These experiments open a new perspective on the problem of so-called cold nuclear fusion.

Tsyganov, E. N., E-mail: edward.tsyganov@utsouthwestern.edu [University of Texas Southwestern Medical Center at Dallas (United States)

2012-02-15T23:59:59.000Z

40

Down to Earth: Lingering Nuclear Waste  

Science Journals Connector (OSTI)

...be changed, allowing Yucca Mountain to expand,” says geologist...would have difficulty funding a repository are exploring...Status: Chose site at Yucca Mountain. Repository being...Reconsidering all disposal options for decision...

Mason Inman

2005-08-19T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Energy Management Strategies for Fast Battery Temperature Rise...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Management Strategies for Fast Battery Temperature Rise and Engine Efficiency Improvement at Very Cold Conditions Energy Management Strategies for Fast Battery Temperature...

42

Genomic and Expression Analyses of Cold-Adapted Microorganisms.  

SciTech Connect

Contents 7.1 Introduction 7.2 Ecological evidence of bacterial adaptation to cold 7.2.1 Characteristics of cold environments and implications for microbial ecology 7.2.2 Ecological adaptation in Exiguobacterium spp. and Psychrobacter spp. 7.3 Gene Expression Responses to the Cold 7.3.1 Fundamentals of Gene Expression Responses to Cold 7.3.2 Acclimation for Life in Cold Habitats 7.3.2.1 Translation and Chaperone Proteins: Safeguarding the functional units of cellular physiology 7.3.2.2 Carbon and Energy metabolism: resource efficiency over long generation times 7.3.2.3 Amino Acid Biosynthesis: Species-specific responses to species-specific deficiencies 7.3.2.4 Compatible solutes: a concomitant response in cryoenvironments 7.3.2.5 Membrane fluidity: A major role in the overall metabolic rate at temperature 7.3.2.6 The cell wall at low temperature: A poorly understood growth rate determinant 7.3.2.7 Transporters: The balance between local nutrient uptake and depletion 7.3.2.8 Genome plasticity. The potential role of transposases and repeated sequences. 7.4 Protein adaptations to cold 7.4.1 The low temperature challenge 7.4.2 The stability activity relationship 7.4.3 Structural features of cold adapted enzymes. 7.4.4 Hydrophobic interactions 7.4.5 Electrostatic interactions 7.4.5.1 Arginine 7.4.5.2 Acidic residues 7.4.6 Structural elements 7.4.6.1 -helices and -sheets 7.4.6.2 Proline and Glycine 7.4.6.3 Disordered regions 7.5 Comparison of cold- and warm-adapted Exiguobacterium strains 7.5.1 Phylogeny reflects adaptations to environmental conditions 7.5.2 Genomic comparison of two strains 7.6 Summary and future directions

Bakermans, Corien [Pennsylvania State University; Bergholz, Peter W. [Cornell University; Rodrigues, Debora F. [University of Houston, Houston; Vishnivetskaya, T. [University of Tennessee, Knoxville (UTK); Ayala-del-Río, Hector L. [University of Puerto Rico; Tiedje, James M. [Michigan State University, East Lansing

2011-01-01T23:59:59.000Z

43

Air Source Heat Pumps for Cold Climate Applications: Recent U. S. R&D Results from IEA HPP Annex 41  

SciTech Connect

Air source heat pumps are easily applied to buildings almost anywhere. They are widespread in milder climate regions but their use in cold regions is hampered due to low efficiency and heating capacity at cold outdoor temperatures. This article describes selected R&D activities aimed at improving their cold weather performance.

Baxter, Van D [ORNL; Groll, Dr. Eckhard A. [Purdue University, Ray W. Herrick Laboratories; Shen, Bo [ORNL

2014-01-01T23:59:59.000Z

44

Thermodynamics of Quantum Ultra-cold Neutron Gas under Gravity of The Earth  

E-Print Network (OSTI)

The stored ultra-cold neutrons have been developed. A high density ultra-cold neutron gas has been recently produced by using the nuclear spallation method. We investigate the thermodynamic properties of the quantum ultra-cold neutron gas in the Earth's gravitational field. We find that the quantum effects increase temperature dependence of the chemical potential and the internal energy in the low temperature region. The density distribution of quantum ultra-cold neutron gas is modified by the Earth's gravitational field.

Hiromi Kaneko; Akihiro Tohsaki; Atsushi Hosaka

2012-06-29T23:59:59.000Z

45

T-661: ColdFusion Security Hotfix | APSB11-14, ColdFusion Important...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1: ColdFusion Security Hotfix | APSB11-14, ColdFusion Important Update T-661: ColdFusion Security Hotfix | APSB11-14, ColdFusion Important Update July 5, 2011 - 7:57am Addthis...

46

Solid Cold - A  

NLE Websites -- All DOE Office Websites (Extended Search)

By the early 20th century, the way in which temperatures of solid objects changed as they absorbed heat was considered strong evidence that matter was not made of atoms. Einstein used some recent discoveries about light to turn this assessment around. A B C D E F A. A puzzle, and a surprising solution Take equal masses of lead and aluminum. Heat them until their temperatures are both 10 degrees higher. Will it take the same amount of heat for each? Back in the 18th century, the chemist Joseph Black discovered that different materials required different amounts of heat to raise their temperatures by equal amounts. The amount by which the temperature of a material changes as it absorbs or gives off heat can even be used to help identify the material. Among solid materials near room temperature,

47

Supercharger for Heat Pumps in Cold Climates  

NLE Websites -- All DOE Office Websites (Extended Search)

Supercharger for Heat Supercharger for Heat Pumps in Cold Climates Thomas J. Walter Mechanical Solutions, Inc. tjw@mechsol.com 518-320-8552 April 3, 2013 DOE SBIR Grant No. SC0006162 Concept is similar to superchargers for piston engine aircraft 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: Electrically driven heat pumps are an effective method of extracting heat from ambient air. As air temperature falls, however, heat pump performance falls off, essentially limiting their year round usefulness to

48

Supercharger for Heat Pumps in Cold Climates  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Supercharger for Heat Supercharger for Heat Pumps in Cold Climates Thomas J. Walter Mechanical Solutions, Inc. tjw@mechsol.com 518-320-8552 April 3, 2013 DOE SBIR Grant No. SC0006162 Concept is similar to superchargers for piston engine aircraft 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: Electrically driven heat pumps are an effective method of extracting heat from ambient air. As air temperature falls, however, heat pump performance falls off, essentially limiting their year round usefulness to

49

Cold neutron scattering in imperfect deuterium crystals  

E-Print Network (OSTI)

The differential cross sections for cold neutron scattering in mosaic deuterium crystals have been calculated for various target temperatures. The theoretical results are compared with the recent experimental data for the neutron wavelengths $\\lambda\\approx$~1--9~\\AA. It is shown that the structures of observed Bragg peaks can be explained by the mosaic spread of about $3^{\\circ}$ and contributions from a~limited number of crystal orientations. Such a~crystal structure should be also taken into account in ultracold neutron upscattering due to the coherent phonon annihilation in solid deuterium.

Andrzej Adamczak

2010-12-10T23:59:59.000Z

50

Solid Cold - E  

Office of Scientific and Technical Information (OSTI)

worked as well as it did, even though it took no account of the yet-to-be-discovered energy quanta. For all but the lower temperatures, the quantum hypothesis leads to...

51

Skin Sensitivity and the Cold  

NLE Websites -- All DOE Office Websites (Extended Search)

Skin Sensitivity and the Cold Skin Sensitivity and the Cold Name: Richard Location: N/A Country: N/A Date: N/A Question: A student in my anatomy and physiology class asked me, "When it's very cold outside in the winter, why does your skin hurt MORE than usual when you bang your finger or someone slaps you on the arm?" Replies: Wow! This is one outstanding question. Mammals respond to cold weather with the hypothalamus releasing thyrotropin releasing factor. This production increases with the severity of the cold weather and the length of the exposure to cold over a long period of time (at least three to four weeks). The thyroid responds by slowly increasing in size and releases thyroxine at higher quantities. Thyroxine increases the sensitivity of the entire nervous system. As a matter of fact, as you probably know, it increases the metabolism wholesale! within the body. This gets complicated so I'm keeping it simple. So, the bottom line is thyroxine. It just heightens our sensitivity not only to cold but our entire nervous system is enhanced.

52

Late January Cold Impacted Both Supply & Demand  

Gasoline and Diesel Fuel Update (EIA)

A brief cold spell occurred in the second half of January on top of A brief cold spell occurred in the second half of January on top of the low stocks. Cold weather increases demand, but it also can interfere with supply, as happened this past January. During the week ending January 22, temperatures in the New England and the Mid-Atlantic areas shifted from being15 percent and 17 percent warmer than normal, respectively, to 24 percent and 22 percent colder than normal. The weather change increased weekly heating requirements by about 40 percent. Temperature declines during the winter affect heating oil demand in a number of ways: Space heating demand increases; Electricity peaking demand increases and power generators must turn to distillate to meet the new peak needs; Fuel switching from natural gas to distillate occurs among large

53

Research on Methane-Electricity-Heatpump System Model in Cold Area  

Science Journals Connector (OSTI)

The heat energy loss of methane liquid is the most important reason for low temperature of methane biochemical reaction in cold area by energy-flow analysis. The heat energy recovery of methane liquid can build a self-energizing system. Vegetable greenhouses ... Keywords: cold area, self-energizing, methane, heat pump, model

Zhang Chenghu; Pan Yawen; Ma Fang; Sun Dexing; Qiu Shan

2011-01-01T23:59:59.000Z

54

Optical diagnostics of cold (I'mK atoms in the magneto-optical trap  

E-Print Network (OSTI)

Optical diagnostics of cold (I'mK atoms in the magneto-optical trap Tomasz M. Brzozowski, Witold with the spectroscopic methods. In this paper, we present basic principles ofobtaining ultra-cold atoms and methods used-OFHCAL TRAP Temperatures of atoms in gaseous phase below 1 mK are nowadays routinely reached with the help

55

The Interruption of Alpine Foehn by a Cold Front. Part I: Observations  

E-Print Network (OSTI)

propagation speed wf 1 m/s Inclination of the frontal surface is wf /uf 1/7.5 8° Freitag (1990 in valleys Interaction with local winds (e.g., foehn) foehn cold front Cold front in complex terrain ? ? #12 in Inn and Wipp Valley Temperature slope profile Doppler wind lidar in Wipp Valley #12;6 of 13 Case study

Gohm, Alexander

56

Guides and Case Studies for Cold and Very Cold Climates | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Cold and Very Cold Climates Cold and Very Cold Climates Guides and Case Studies for Cold and Very Cold Climates Map of the Cold & Very Cold Zones of the United States. The far tips of North Dakota, Maine, and southern Alaska are shown as Very Cold. The northern half of the United States is shown as Cold. The U.S. Department of Energy (DOE) Building America program has developed a series of best practices and case studies to help builders improve whole-house energy performance in buildings found in cold and very cold climates. Best Practice Guides New Construction Case Studies Improvements to Existing Homes Case Studies Best Practice Guides 40% Whole-House Energy Savings in Cold and Very Cold Climates - Volume 12 New Construction Case Studies Colorado Project: The Hale Plan - Denver

57

Cold Test Facility - Hanford Site  

NLE Websites -- All DOE Office Websites (Extended Search)

Projects & Facilities > Cold Test Facility Projects & Facilities 100 Area 118-K-1 Burial Ground 200 Area 209-E Critical Mass Laboratory 222-S Laboratory 224-B Facility 224-T...

58

Reexamining the Cold Conveyor Belt  

Science Journals Connector (OSTI)

Despite the popularity of the conveyor-belt model for portraying the airflow through midlatitude cyclones, questions arise as to the path of the cold conveyor belt, the lower-tropospheric airflow poleward of and underneath the warm front. Some ...

David M. Schultz

2001-09-01T23:59:59.000Z

59

PHEV Engine Cold Start Emissions Management  

Energy.gov (U.S. Department of Energy (DOE))

Coordination of engine and powertrain supervisory control strategies to minimize cold start emissions

60

Optimized Analysis of Cold Energy Utilization for Cold Storage Project of Xingtan LNG Satellite Station  

Science Journals Connector (OSTI)

The project of cold energy utilization for cold storage of Xingtan LNG satellite station is the first cold energy utilization demonstration project of LNG satellite station in China with (2–4...4 m3/day gasificat...

Wendong Xu; Zhonghao Huang; Shuanshi Fan

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

An Optical Frequency Standardwith Cold and Ultra-cold Calcium Atoms  

Science Journals Connector (OSTI)

An optical frequency standard (?...= 657 nm) based on cold and ultra-cold neutral Ca atoms is operated at ... residual velocity of the cold atoms at 3 mK limits the fractional uncertainty to 2 ×...–14. Applying a...

Fritz Riehle; Carsten Degenhardt…

2004-01-01T23:59:59.000Z

62

Fission with cold neutrons  

SciTech Connect

As NASA continues the exploration of deep space, there is a need for safe, reliable, and long-lasting source of energy. Solar cells, which are useful at the inner solar system, cannot provide adequate power for a spacecraft once it has passed beyond Jupiter's orbit. For missions to the outer planets, NASA has relied on radioisotope thermoelectric generators (RTGs) using 238Pua s a heat source. RTGs are an excellent power conversion technology but, unfortunately, 238Pu is a potential environmental hazard. In the past, the use of 238Pu has generated much controversy and turmoil. Its use in future missions is doubtful because of environmental concerns. This paper presents calculations performed with MCNP for a power source that will take advantage of the low temperatures found in deep space.

Sanchez, R. G. (Rene G.)

2002-01-01T23:59:59.000Z

63

Maintaining body temperature  

NLE Websites -- All DOE Office Websites (Extended Search)

Maintaining body temperature Maintaining body temperature Name: Jeff Location: N/A Country: N/A Date: N/A Question: What keeps the human body at a constant temperature of 98.6? Replies: Maintaining body temperature is very complex. It also takes a lot of energy. About 80% of the energy from the food you eat goes to maintaining body temperature. Basically, the chemical reactions of metabolism of stored food, especially fats, generate heat as a by product. This heat warms the body. The brain reads temperature and controls to some extent the rate of this metabolism. There are also many other mechanisms triggered by the brain to keep the core of your body warm, even if the periphery (skin) is cold. Blood vessels to the fingers and toes constrict, so that the cold air doesn't cool the blood too much, so that cooled blood doesn't cool down the heart and brain when it returns. In severe cases, your body will sacrifice a finger or a toe to keep you from dying of cold core temperature (frostbite: it saves your life!). Also the brain can order a lot of muscles to contract rapidly. This generates a lot of heat quickly, a response called shivering. There's much more to this exciting field of research.

64

Cure for the Common Cold  

Science Journals Connector (OSTI)

Rumor has it that the medical profession suffers from too many cold and distant doctors. Studies have attempted to subject this notion to the scrutiny of science,, and although we could argue over their degree of success, we know it's true. We need only ask our patients in order to be regaled with... Rumor has it that the medical profession suffers from too many cold and distant doctors. Studies have attempted to subject this notion to the scrutiny of science,1,2 and although we could argue over their degree of success, we know it's true. We need only ...

Watts D.

2012-09-27T23:59:59.000Z

65

Surface Temperature of IGUs  

NLE Websites -- All DOE Office Websites (Extended Search)

117 117 Surface Temperatures of Insulated Glazing Units: Infrared Thermography Laboratory Measurements Brent T. Griffith, Daniel Türler, and Dariush Arasteh Building Technologies Program Environmental Energy Technologies Division Lawrence Berkeley National Laboratory University of California Berkeley, CA 94720 USA Fax: 510-486-6046, email: D_Arasteh@lbl.gov Abstract Data are presented for the distribution of surface temperatures on the warm-side surface of seven different insulated glazing units. Surface temperatures are measured using infrared thermography and an external referencing technique. This technique allows detailed mapping of surface temperatures that is non-intrusive. The glazings were placed between warm and cold environmental chambers that were operated at conditions

66

Ice Heating Up Cold Clouds | EMSL  

NLE Websites -- All DOE Office Websites (Extended Search)

Ice Heating Up Cold Clouds Ice Heating Up Cold Clouds In a heated battle, ice crystals win the competition for cloud water vapor The mighty cloud ice crystal appears deceptively...

67

Condensation and pattern formation in cold exciton gases in coupled quantum wells  

Science Journals Connector (OSTI)

Bound electron–hole pairs—excitons—are light Bose particles with a mass comparable to or smaller than that of the free electron. Since the quantum degeneracy temperature scales inversely with the mass, it is anticipated that Bose–Einstein condensation of an exciton gas can be achieved at temperatures of about 1?K, orders of magnitude larger than the micro-Kelvin temperatures employed in atomic condensation. High quantum degeneracy temperatures and the possibility to control exciton density by laser photoexcitation make cold excitons a model system for studies of collective states and many-body phenomena in a system of cold bosons. Experimentally, an exciton temperature well below 1?K is achieved in a gas of indirect excitons in coupled quantum-well semiconductor heterostructures. Here, we overview phenomena in the cold exciton gases: condensation, pattern formation, and macroscopically ordered exciton states.

L V Butov

2004-01-01T23:59:59.000Z

68

Cold cathode vacuum discharge tube  

DOE Patents (OSTI)

A cold cathode vacuum discharge tube, and method for making same, with an interior surface of the trigger probe coated with carbon deposited by carbon vapor deposition (CVD) or diamond-like carbon (DLC) deposition. Preferably a solid graphite insert is employed in the probe-cathode structure in place of an aluminum bushing employed in the prior art. The CVD or DLC probe face is laser scribed to allow resistance trimming to match available trigger voltage signals and to reduce electrical aging.

Boettcher, Gordon E. (Albuquerque, NM)

1998-01-01T23:59:59.000Z

69

Procedure and Application for Determining the Cold Deck and Hot Deck Airflow in a Dual-Duct System  

E-Print Network (OSTI)

This paper introduces an innovative method to determine the cold and hot airflow through a dual-duct variable air volume (VAV) system. The actual building load can be identified based on the calculated airflow and temperature for both the cold...

Liu, G.; Mingsheng, L.

2006-01-01T23:59:59.000Z

70

THE JOURNAL OF CHEMICAL PHYSICS 134, 124309 (2011) Cold and ultracold NHNH collisions: The field-free case  

E-Print Network (OSTI)

. INTRODUCTION Cold (T mK) molecules offer a wide variety of applications,11 In the last few years, techniques have been developed that either form (ultra-) cold molecules by pairing up trap. Direct-cooling techniques for NH are currently limited to temperatures of a few hundred mK

71

Effect of Feeding Rate on the Cold Cap Configuration in a Laboratory-Scale Melter - 13362  

SciTech Connect

High-level-waste melter feed is converted into glass in a joule-heated melter, where it forms a floating layer of reacting feed, called the cold cap. After the glass-forming phase becomes connected, evolving gases produce bubbles that form a foam layer under the feed. The bubbles coalesce into cavities, from which most of the gases are released around the edges of the cold cap while gases also escape through small shafts in the reacting feed. The foam layer insulates the cold cap from the heat transferred from the molten glass below. The cold cap behavior was investigated in a laboratory-scale assembly with a fused silica crucible. A high-alumina waste simulant was fed into the crucible and the feed charging rate was varied from 3 to 7 mL min{sup -1}. After a fixed amount of time (35 min), feed charging was stopped and the crucible was removed from the furnace and quenched on a copper block to preserve the structure of the cold cap during cooling. During the rapid quenching, thermal cracking of the glass and cold cap allowed it to be broken up into sections for analysis. The effect of the charging rate on the height, area and volume of the cold cap was determined. The size of the bubbles collected in the foam layer under the feed increased as the cold cap expanded and the relationship between these bubbles and temperature will be determined for input into a mathematical model. (authors)

Dixon, Derek R.; Schweiger, Michael J. [Pacific Northwest National Laboratory, Richland, WA 99354 (United States)] [Pacific Northwest National Laboratory, Richland, WA 99354 (United States); Hrma, Pavel [Pacific Northwest National Laboratory, Richland, WA 99354 (United States) [Pacific Northwest National Laboratory, Richland, WA 99354 (United States); Division of Advanced Nuclear Engineering, Pohang University of Science and Technology, Pohang (Korea, Republic of)

2013-07-01T23:59:59.000Z

72

Critical Review of Theoretical Models for Anomalous Effects (Cold Fusion) in Deuterated Metals  

E-Print Network (OSTI)

We briefly summarize the reported anomalous effects in deuterated metals at ambient temperature, commonly known as "Cold Fusion" (CF), with an emphasis on important experiments as well as the theoretical basis for the opposition to interpreting them as cold fusion. Then we critically examine more than 25 theoretical models for CF, including unusual nuclear and exotic chemical hypotheses. We conclude that they do not explain the data.

V. A. Chechin; V. A. Tsarev; M. Rabinowitz; Y. E. Kim

2003-04-06T23:59:59.000Z

73

Critical Review of Theoretical Models for Anomalous Effects (Cold Fusion) in Deuterated Metals  

E-Print Network (OSTI)

We briefly summarize the reported anomalous effects in deuterated metals at ambient temperature, commonly known as "Cold Fusion" (CF), with an emphasis on important experiments as well as the theoretical basis for the opposition to interpreting them as cold fusion. Then we critically examine more than 25 theoretical models for CF, including unusual nuclear and exotic chemical hypotheses. We conclude that they do not explain the data.

Chechin, V A; Rabinowitz, M; Kim, Y E

1994-01-01T23:59:59.000Z

74

Slurry fired heater cold-flow modelling  

SciTech Connect

This report summarizes the experimental and theoretical work leading to the scale-up of the SRC-I Demonstration Plant slurry fired heater. The scale-up involved a theoretical model using empirical relations in the derivation, and employed variables such as flow conditions, liquid viscosity, and slug frequency. Such variables have been shown to affect the heat transfer characteristics ofthe system. The model assumes that, if all other variables remain constant, the heat transfer coefficient can be scaled up proportional to D/sup -2/3/ (D = inside diameter of the fired heater tube). All flow conditions, liquid viscosities, and pipe inclinations relevant to the demonstration plant have indicated a slug flow regime in the slurry fired heater. The annular and stratified flow regimes should be avoided to minimize the potential for excessive pipe erosion and to decrease temperature gradients along the pipe cross section leading to coking and thermal stresses, respectively. Cold-flow studies in 3- and 6.75-in.-inside-diameter (ID) pipes were conducted to determine the effect of scale-up on flow regime, slug frequency, and slug dimensions. The developed model assumes that conduction heat transfer occurs through the liquid film surrounding the gas slug and laminar convective heat transfer to the liquid slug. A weighted average of these two heat transfer mechanisms gives a value for the average pipe heat transfer coefficient. The cold-flow work showed a decrease in the observed slug frequency between the 3- and 6.75-ID pipes. Data on the ratio of gas to liquid slug length in the 6.75-in. pipe are not yet complete, but are expected to yield generally lower values than those obtained in the 3-in. pipe; this will probably affect the scale-up to demonstration plant conditions. 5 references, 15 figures, 7 tables.

Moujaes, S.F.

1983-07-01T23:59:59.000Z

75

Bulk viscosity in a cold CFL superfluid  

E-Print Network (OSTI)

We compute one of the bulk viscosity coefficients of cold CFL quark matter in the temperature regime where the contribution of mesons, quarks and gluons to transport phenomena is Boltzmann suppressed. In that regime dissipation occurs due to collisions of superfluid phonons, the Goldstone modes associated to the spontaneous breaking of baryon symmetry. We first review the hydrodynamics of relativistic superfluids, and remind that there are at least three bulk viscosity coefficients in these systems. We then compute the bulk viscosity coefficient associated to the normal fluid component of the superfluid. In our analysis we use Son's effective field theory for the superfluid phonon, amended to include scale breaking effects proportional to the square of the strange quark mass m_s. We compute the bulk viscosity at leading order in the scale breaking parameter, and find that it is dominated by collinear splitting and joining processes. The resulting transport coefficient is zeta=0.011 m_s^4/T, growing at low temperature T until the phonon fluid description stops making sense. Our results are relevant to study the rotational properties of a compact star formed by CFL quark matter.

Cristina Manuel; Felipe Llanes-Estrada

2007-05-26T23:59:59.000Z

76

Coherence Length of Cold Exciton Gases in Coupled Quantum Wells  

Science Journals Connector (OSTI)

A Mach-Zehnder interferometer with spatial and spectral resolution was used to probe spontaneous coherence in cold exciton gases, which are implemented experimentally in the ring of indirect excitons in coupled quantum wells. A strong enhancement of the exciton coherence length is observed at temperatures below a few Kelvin. The increase of the coherence length is correlated with the macroscopic spatial ordering of excitons. The coherence length at the lowest temperature corresponds to a very narrow spread of the exciton momentum distribution, much smaller than that for a classical exciton gas.

Sen Yang, A. T. Hammack, M. M. Fogler, L. V. Butov, and A. C. Gossard

2006-10-31T23:59:59.000Z

77

T-661: ColdFusion Security Hotfix | APSB11-14, ColdFusion Important Update  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1: ColdFusion Security Hotfix | APSB11-14, ColdFusion Important 1: ColdFusion Security Hotfix | APSB11-14, ColdFusion Important Update T-661: ColdFusion Security Hotfix | APSB11-14, ColdFusion Important Update July 5, 2011 - 7:57am Addthis PROBLEM: ColdFusion 9.0.1, ColdFusion 9, ColdFusion 8.0.1, and ColdFusion 8 are affected with vulnerabilities mentioned in the security bulletins APSB11-14 and APSB11-15. ColdFusion 9.0.1, 9.0, 8.0.1 and 8.0 for Windows, Macintosh and UNIX (APSB11-14); ColdFusion integrated/installed with LCDS (APSB11-15) PLATFORM: ColdFusion 9.0.1, 9.0, 8.0.1 and 8.0 for Windows, Macintosh and UNIX ABSTRACT: Vulnerabilities have been identified in ColdFusion 9.0.1 and earlier versions for Windows, Macintosh and UNIX. These vulnerabilities could lead to a cross-site request forgery (CSRF) or a remote denial-of-service (DoS).

78

Data Collection for Improved Cold Temperature Thermal Modeling  

Energy.gov (U.S. Department of Energy (DOE))

2012 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting

79

Data Collection for Improved Cold Temperature Thermal Modeling  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

funding: 250k 2 Overview 3. Exh. waste heat 1. Heat transfer 2. Brake power * 1) 33% (loss, heat transfer) * 2) 33% (brake power) * 3) 33% (loss, exhaust waste) Energy in 3...

80

Data Collection for Improved Cold Temperature Thermal Modeling...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Vehicle Speed Dynamometer CAN measured Drive trace measurement Engine RPM CAN spark frequency Model input Brake Torque CAN Flywheel torque, model input Toil Dipstick...

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

International workshop on cold neutron sources  

SciTech Connect

The first meeting devoted to cold neutron sources was held at the Los Alamos National Laboratory on March 5--8, 1990. Cosponsored by Los Alamos and Oak Ridge National Laboratories, the meeting was organized as an International Workshop on Cold Neutron Sources and brought together experts in the field of cold-neutron-source design for reactors and spallation sources. Eighty-four people from seven countries attended. Because the meeting was the first of its kind in over forty years, much time was spent acquainting participants with past and planned activities at reactor and spallation facilities worldwide. As a result, the meeting had more of a conference flavor than one of a workshop. The general topics covered at the workshop included: Criteria for cold source design; neutronic predictions and performance; energy deposition and removal; engineering design, fabrication, and operation; material properties; radiation damage; instrumentation; safety; existing cold sources; and future cold sources.

Russell, G.J.; West, C.D. (comps.) (Los Alamos National Lab., NM (United States)) [comps.; Los Alamos National Lab., NM (United States)

1991-08-01T23:59:59.000Z

82

Quantum tunneling of oxygen atoms on very cold surfaces  

E-Print Network (OSTI)

Any evolving system can change of state via thermal mechanisms (hopping a barrier) or via quantum tunneling. Most of the time, efficient classical mechanisms dominate at high temperatures. This is why an increase of the temperature can initiate the chemistry. We present here an experimental investigation of O-atom diffusion and reactivity on water ice. We explore the 6-25 K temperature range at sub-monolayer surface coverages. We derive the diffusion temperature law and observe the transition from quantum to classical diffusion. Despite of the high mass of O, quantum tunneling is efficient even at 6 K. As a consequence, the solid-state astrochemistry of cold regions should be reconsidered and should include the possibility of forming larger organic molecules than previously expected.

Minissale, M; Baouche, S; Chaabouni, H; Moudens, A; Dulieu, F; Accolla, M; Cazaux, S; Manico, G; Pirronello, V

2014-01-01T23:59:59.000Z

83

PHEV Engine Cold Start Emissions Management  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Cold Start Emissions Management Paul Chambon, Dr. David Smith Oak Ridge National Laboratory Dr. David Irick, Dean Deter The University of Tennessee Poster Location P-05 2 Managed...

84

Numerical and physical modelling of microstructure evolution – new approach to the development and optimisation of cold rolling and annealing technology of IF steel strips  

Science Journals Connector (OSTI)

Modelling of cold rolling and continuous annealing of the IF steel is the objective of the paper. Experimental plastometric tests were performed to determine flow stress in the temperature range characteristic for cold rolling. Physical simulations of the annealing were performed at various heating rates to various temperatures. The kinetics of recrystallization model based on the additivity rule was identified on the basis of the experimental results. In connection with the finite element model of cold rolling, the complex model for the whole manufacturing cycle is obtained. This model can be used for optimisation of cold rolling and annealing technology of IF steel strips.

R. KUZIAK; R. MOLENDA; M. PIETRZYK

2008-01-01T23:59:59.000Z

85

Cold tolerance of red drum (Sciaenops ocellatus) and thermal-refuge technology to protect this species from cold-kill in aquaculture ponds  

E-Print Network (OSTI)

.004 to 0.006 min-' for the 1992-93 version (r > 0.99). A second phase of the research focused on cold tolerance of red drum in ponds at Palacios, from 6 February to 2 April 1993. Values of the 24-h lower lethal temperature of fish sampled from refuge...

Dorsett, Paul Wesley

2012-06-07T23:59:59.000Z

86

Cold dark matter heats up  

E-Print Network (OSTI)

One of the principal discoveries in modern cosmology is that standard model particles (including baryons, leptons and photons) together comprise only 5% of the mass-energy budget of the Universe. The remaining 95% consists of dark energy and dark matter (DM). Consequently our picture of the universe is known as {\\Lambda}CDM, with {\\Lambda} denoting dark energy and CDM cold dark matter. {\\Lambda}CDM is being challenged by its apparent inability to explain the low density of DM measured at the centre of cosmological systems, ranging from faint dwarf galaxies to massive clusters containing tens of galaxies the size of the Milky Way. But before making conclusions one should carefully include the effect of gas and stars, which were historically seen as merely a passive component during the assembly of galaxies. We now understand that these can in fact significantly alter the DM component, through a coupling based on rapid gravitational potential fluctuations.

Pontzen, Andrew

2014-01-01T23:59:59.000Z

87

R-Cold: Order (2013-CE-5354)  

Energy.gov (U.S. Department of Energy (DOE))

DOE ordered R-Cold, Inc. to pay a $8,000 civil penalty after finding R-Cold had failed to certify that any basic models of walk-in cooler or freezer components comply with the applicable energy conservation standards.

88

All Electric Houses in Cold Climates  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Electric Houses Electric Houses in Cold Climates Duncan Prahl, RA IBACOS BA Tech Update, April 29, 2013 Denver CO All Electric Houses in Cold Climates Caveats About Me: * I'm an Architect * I love math and science, but I'm not going to marry it * My engineering skills are primarily based on osmosis and graphics * "Close enough is good enough" All Electric Houses in Cold Climates Utility Unbundling * True costs becoming "transparent" * Allows for next level of analysis * Cash flow, Total Cost of Ownership All Electric Houses in Cold Climates Martha's Vineyard Community Images courtesy South Mountain Company All Electric Houses in Cold Climates Specifications Building System Specification Below Slab R-20 extruded polystyrene (XPS) foam Foundation Walls R-20 poly iso foam

89

Cold Air Distribution in Office Buildings: Technology Assessment for California  

E-Print Network (OSTI)

1988. Cold Air Distribution Design Guide. EPRI Report EM-match the cold air distribution design, the floor-to-floorinclude cold air distribution in their designs. The projects

Bauman, F.S.

2008-01-01T23:59:59.000Z

90

Supercharger for Heat Pumps in Cold Climates | Department of...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Supercharger for Heat Pumps in Cold Climates Supercharger for Heat Pumps in Cold Climates Emerging Technologies Project for the 2013 Building Technologies Office's Program Peer...

91

Cold Crucible Induction Melter Studies for Making Glass Ceramic...  

NLE Websites -- All DOE Office Websites (Extended Search)

Cold Crucible Induction Melter Studies for Making Glass Ceramic Waste Forms: A Feasibility Assessment. Cold Crucible Induction Melter Studies for Making Glass Ceramic Waste Forms:...

92

SANS study of understanding mechanism of cold gelation of globular proteins  

SciTech Connect

Small-angle neutron scattering (SANS) has been used to probe the evolution of interaction and the resultant structures in the cold gelation of globular proteins. The cold gelation involves two steps consisting of irreversible protein deformation by heating followed by some means (e.g. increasing ionic strength) to bring them together at room temperature. We have examined the role of different salts in cold gelation of preheated aqueous Bovine Serum Albumin (BSA) protein solutions. The interactions have been modeled by two Yukawa potential combining short-range attraction and long-range repulsion. We show that in step 1 (preheated temperature effect) the deformation of protein increases the magnitude of attractive interaction but not sufficient to induce gel. The attractive interaction is further enhanced in step 2 (salt effect) to result in gel formation. The salt effect is found to be strongly depending on the valency of the counterions. The gel structure has been characterized by the mass fractals.

Chinchalikar, A. J., E-mail: akshayc@barc.gov.in; Kumar, Sugam, E-mail: akshayc@barc.gov.in; Aswal, V. K., E-mail: akshayc@barc.gov.in; Wagh, A. G. [Solid State Physics Division, Bhabha Atomic Research Centre, Mumbai-400085 (India); Kohlbrecher, J. [Laboratory of Neutron Scattering, Paul Scherrer Institut, CH - 5232 PSI Villigen (Switzerland)

2014-04-24T23:59:59.000Z

93

Solid oxygen as converter for the production of ultra-cold neutrons  

E-Print Network (OSTI)

We have investigated solid oxygen as a converter material for the production of ultra-cold neutrons. In a first series of experiments the crystal preparation was examined. An optically semi-transparent solid $\\alpha$-oxygen crystal has been prepared. In a second series of experiments such a crystal prepared indentically as in the first series of experiments has been exposed to the cold neutron flux of the MEPHISTO beam line of the FRM II. Ultra-cold neutrons produced inside the oxygen crystal have been extracted and the count rates have been measured at different converter temperatures. The results of these measurements give a clear signal of the superthermal UCN production mechanism in $\\alpha$-oxygen. The mean free loss length of UCN inside the crystal at a temperature of 5\\,K was determined to be in the order of $20\\,\\mathrm{cm}$.

A. Frei; F. Böhle; R. Bozhanova; E. Gutsmiedl; T. Huber; J. Klenke; S. Paul; S. Wlokka

2010-06-15T23:59:59.000Z

94

Cold quark matter in compact stars  

SciTech Connect

We used an equation of state for the cold quark matter to the study of properties of quark stars. We also discuss the absolute stability of quark matter and compute the mass-radius relation for self-bound stars.

Franzon, B.; Fogaca, D. A.; Navarra, F. S. [Instituto de Fisica, Universidade de Sao Paulo Rua do Matao, Travessa R, 187, 05508-090 Sao Paulo, SP (Brazil); Horvath, J. E. [Instituto de Astronomia, Geofisica e Ciencias Atmosfericas, Universidade de Sao Paulo, Rua do Matao, 1226, 05508-090, Sao Paulo, SP (Brazil)

2013-03-25T23:59:59.000Z

95

The Cold War and American Education  

E-Print Network (OSTI)

American historians who have studied the Cold War have usually focused upon either the events on the international scene which gave rise to tensions or on the policies and rhetoric of national political leaders such as ...

Marden, David L.

1975-10-01T23:59:59.000Z

96

Detecting Topological Phases in Cold Atoms  

E-Print Network (OSTI)

Chern insulators are band insulators which exhibit a gap in the bulk and gapless excitations in the edge. Detection of Chern insulators is a serious challenge in cold atoms since the Hall transport measurements are technically ...

Liu, Xiong-Jun

97

Particle Velocity and Deposition Efficiency in the Cold Spray Process  

SciTech Connect

Copper powder was sprayed by the cold-gas dynamic method. In-flight particle velocities were measured with a laser-two-focus system as a function of process parameters such as gas temperature, gas pressure, and powder feed rate. Particle velocities were uniform in a relatively large volume within the plume and agreed with theoretical predictions. The presence of the substrate was found to have no significant effect on particle velocities. Cold-spray deposition efficiencies were measured on aluminum substrates as a function of particle velocity and incident angle of the plume. Deposition efficiencies of up to 95% were achieved. The critical velocity for deposition was determined to be about 640 meters per second. This work investigates both the in-flight characteristics of copper particles in a supersonic cold-spray plume and the build-up of the subsequent coating on aluminum substrates. Velocities were found to be relatively constant within a large volume of the plume. Particle counts dropped off sharply away from the central axis. The presence of a substrate was found to have no effect on the velocity of the particles. A substantial mass-loading effect on the particle velocity was observed; particle velocities begin to drop as the mass ratio of powder to gas flow rates exceeds 3%. The measured variation of velocity with gas pressure and pre-heat temperature was in fairly good agreement with theoretical predictions. Helium may be used as the driving gas instead of air in order to achieve higher particle velocities for a given temperature and pressure. Coating deposition efficiencies were found to increase with particle velocity and decrease with gun- substrate angle. There did not appear to be any dependence of the deposition efficiency on coating thickness. A critical velocity for deposition of about 640 mk appears to fit the data well. The cold-spray technique shows promise as a method for the deposition of materials which are thermally sensitive or may experience rapid oxidation under typical thermal spray conditions. High deposition efficiencies are achievable for certain coating-substrate conditions. Work remains to determine the material and microstructural properties which govern the coating process.

Dykhuizen, R.C.; Gilmore, D.L.; Neiser, R.A.; Roemer, T.J.; Smith, M.F.

1998-11-12T23:59:59.000Z

98

Integrated Chiller System Reduce Building Operation and Maintenance Costs in Cold Climates  

E-Print Network (OSTI)

Although water-cooled chillers are more energy efficient than air-cooled chillers, a majority of chilled water systems use air-cooled chillers. In cold weather climates, air-cooled chillers are capable of functioning in low ambient temperatures...

Sheets, N.; Liu, M.

2003-01-01T23:59:59.000Z

99

Some Calculations for Cold Fusion Superheavy Elements  

E-Print Network (OSTI)

The Q value and optimal exciting energy of the hypothetical superheavy nuclei in cold fusion reaction are calculated with relativistic mean field model and semiemperical shell model mass equation(SSME) and the validity of the two models is tested. The fusion barriers are also calculated with two different models and reasonable results are obtained. The calculations can give useful references for the experiments in the superheavy nuclei synthesized in cold fusion reactions.

Zhong, X H; Ning, P Z

2004-01-01T23:59:59.000Z

100

Some Calculations for Cold Fusion Superheavy Elements  

E-Print Network (OSTI)

The Q value and optimal exciting energy of the hypothetical superheavy nuclei in cold fusion reaction are calculated with relativistic mean field model and semiemperical shell model mass equation(SSME) and the validity of the two models is tested. The fusion barriers are also calculated with two different models and reasonable results are obtained. The calculations can give useful references for the experiments in the superheavy nuclei synthesized in cold fusion reactions.

X. H. Zhong; L. Li; P. Z. Ning

2004-10-18T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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to obtain the most current and comprehensive results.


101

Implications of Theoretical Ideas Regarding Cold Fusion  

E-Print Network (OSTI)

A lot of theoretical ideas have been floated to explain the so called cold fusion phenomenon. I look at a large subset of these and study further physical implications of the concepts involved. I suggest that these can be tested by other independent physical means. Because of the significance of these the experimentalists are urged to look for these signatures. The results in turn will be important for a better understanding and hence control of the cold fusion phenomenon.

Afsar Abbas

1995-03-29T23:59:59.000Z

102

Steep increase in oil prices as gulf crisis lingers on  

Science Journals Connector (OSTI)

Following a brief interruption, the recovery in world commodity prices witnessed during the first months of the year has continued. Crude oil prices reached their highest level for 16 months. The increase in prices

Klaus Matthies

103

NREL: Biomass Research - Jeffrey G. Linger, Ph.D.  

NLE Websites -- All DOE Office Websites (Extended Search)

metabolic engineering of Z. mobilis for use in biofuels production. Research Interests Biomass to biofuels conversion Microbial strain development Metabolic engineering Fundamental...

104

Plants in a cold climate  

Science Journals Connector (OSTI)

...temperature also imposes a dehydrative stress, by lowering water absorption by the root and water transport in the shoot. A direct and...conditions? M. Smallwood. There is some evidence that even chill- ing intolerant plants may use some of the same signalling...

2002-01-01T23:59:59.000Z

105

The Cornell University cold neutron beam facility  

SciTech Connect

The final version of a cold neutron beam facility under development at the Cornell 500-kW TRIGA reactor is nearing completion. The facility will provide an ultra-low background subthermal neutron beam, primarily for nuclear reaction experiments such as (n,gamma) and (n,ce) studies and applications such as prompt gamma neutron activation analysis. Its uses will also include exploration of new cold neutron methods and training of graduate students in cold neutron techniques. The facility employs a 13-m long Curved (500-m radius) Ni-on-glass neutron guide (2 cm x 5 cm) to filter out fast neutrons and gamma rays, location of the guide exit in a room isolated from other beams, cold neutrons to increase transmission through the guide, a mesitylene moderator at ca. 30K that avoids hazards of liquid hydrogen or solid methane, and cooling by Cu cold fingers attached to a cryorefrigerator outside the reactor bulk shield. The mesitylene chamber and the first 3 meters of guide are installed in a standard beamplug shell so that no modifications of the reactor structure were required. Design features of the cold source proper have been published in an article that also describes earlier stages of the project, and more recent design details and extensive subsystem tests are reported elsewhere. Final assembly and testing of the beamplug assembly is Currently underway (June 1994); completion is expected in Fall 1994. The project has involved more than seven graduate and undergraduate students.

Clark, D.D. [Cornell Univ., Ithaca, NY (United States)

1994-12-31T23:59:59.000Z

106

Inheritance of Cold Tolerance, Plant Height, Maturity and Other Characters in a Spring-Winter Barley Cross.  

E-Print Network (OSTI)

1 B-1067 July 1967 Inheritance of Cold Tolerance, Plant Height, Maturity and Other Lharacters In a 3pnng - Winter Barley Cross TEXAS A&M UNIVERSITY Texas Agricultural Experiment Station R. E. Patterson, Director, College Station, Texas... Summary Cold tolerance, leaf damage by low temperatures and growth habit were studied in the F,, F, and F, populations of a cross between \\\\rill (winter) x Aim (spring) barley varieties. On a group of 85 random F2 plants and their F, progeny families...

Abo-Elenein, Rashad Ahmed; Atkins, I. M.; Pawlisch, E.; Gardenhire, J. H.; Porter, K. B.

1967-01-01T23:59:59.000Z

107

The focusing effect of cold atomic cloud with a red-detuned Gaussian beam  

E-Print Network (OSTI)

We have demonstrated an atom-optical lens, with the advantage of a small scale and flexible adjustment of the parameters, realized by a far red-detuned Gaussian laser beam perpendicular to the propagation direction of the cold atomic cloud. The one-dimensional transverse focusing effect of cold atomic clouds at the temperature order of 1 $\\mu$K freely falling through the atom-optical lens on the micron scale have been studied theoretically and then verified experimentally. It is found that theory and experiment are in good agreement.

Zhenglu Duan; Shuyu Zhou; Tao Hong; Yuzhu Wang

2015-01-28T23:59:59.000Z

108

The Molecular and Physiological Basis for Temperature Mediated Regulation of Dwarfness in Tifdward Bermudagrass  

E-Print Network (OSTI)

reduction in growth rate. However, this research deals with suboptimal and not cold temperatures. In this study, suboptimal temperatures are those that fall below optimal but are sufficient to 23 maintain plant growth and development. The optimum...

Abernathy, Scott

2014-04-03T23:59:59.000Z

109

Cold ion-atom chemistry driven by spontaneous radiative relaxation: a case study for the formation of the YbCa+ molecular ion  

Science Journals Connector (OSTI)

Using both quantum and semi-classical methods, we calculate the rates for radiative association and charge transfer in cold collisions of Yb+ with Ca. We demonstrate the fidelity of the local optical potential method in predictions for the total radiative relaxation rates. We find a large variation in the isotope dependence of the cross sections at ultra-cold gas temperatures. However, at cold temperatures, 1?mK ?15?cm3?s?1. It is about five orders of magnitude smaller than the chemical reaction rate measured in Rellergert et al (2011 Phys. Rev. Lett. 107 243201).

B Zygelman; Zelimir Lucic; Eric R Hudson

2014-01-01T23:59:59.000Z

110

Slow and fast light dynamics in a chiral cold and hot atomic medium  

E-Print Network (OSTI)

We study Chiral Based Electromagnetically Induced Transparency (CBEIT) of a light pulse and its associated subluminal and superluminal behavior through a cold and a hot medium of 4-level \\textit{double-Lambda type} atomic system. The dynamical behavior of this chiral based system is temperature dependent. The magnetic field based chirality and dispersion is always opposite as compared with the electric field ones. Contrastingly, the response of the chiral effect along with the incoherence Doppler broadening mechanism enhances the superluminal behavior as compared with its traditional degrading effect. Nevertheless, the intensity of a coupled microwave field destroys the coherence of the medium and degrade superluminality and subluminality of the sysmtem. The undistorted retrieved pulse from a hot chiral medium delays by $896 ns$ than from a cold chiral medium under same set of parameters. Nevertheless, it advances by $-31n s$ in the cold chiral medium when a suitably different spectroscopic parameters are sel...

Bacha, Bakht A; Nazmidinov, Rashid G

2014-01-01T23:59:59.000Z

111

Integration of light hydrocarbons cryogenic separation process in refinery based on LNG cold energy utilization  

Science Journals Connector (OSTI)

Abstract China depends on naphtha (derived from oil) as the main feedstock for ethylene plants, resulting in margins that are negatively co-related with the price of oil. Clearly, light hydrocarbons provide cost advantages over the conventional naphtha feedstock. Consequently, the recovery of light hydrocarbons from refinery gas has been gathering more and more significance. Nonetheless, the cryogenic separation needs low process temperatures, substantially increasing the refrigeration load requirements and, attendantly, the compression requirements associated with the refrigeration system. In this paper, the cold energy of liquefied natural gas (LNG) is applied to light hydrocarbons cryogenic separation process to replace the compression refrigeration system on the basis of one China refinery. The results show that LNG can provide 14,373 kW cold energy for the separation process, resulting in a direct compression power saving of 7973 kW and making the utilization rate of LNG cold energy as high as 71.9%.

Yajun Li; Hao Luo

2014-01-01T23:59:59.000Z

112

ALTERNATE REDUCTANT COLD CAP EVALUATION FURNACE PHASE I TESTING  

SciTech Connect

Savannah River Remediation (SRR) conducted a Systems Engineering Evaluation (SEE) to determine the optimum alternate reductant flowsheet for the Defense Waste Processing Facility (DWPF). Specifically, two proposed flowsheets (nitric–formic–glycolic and nitric–formic–sugar) were evaluated based upon results from preliminary testing. Comparison of the two flowsheets among evaluation criteria indicated a preference towards the nitric–formic–glycolic flowsheet. Further evaluation of this flowsheet eliminated the formic acid1, and as a result, the nitric–glycolic flowsheet was recommended for further testing. Based on the development of a roadmap for the nitric–glycolic acid flowsheet, Waste Solidification Engineering (WS-E) issued a Technical Task Request (TTR) to address flammability issues that may impact the implementation of this flowsheet. Melter testing was requested in order to define the DWPF flammability envelope for the nitric glycolic acid flowsheet. The Savannah River National Laboratory (SRNL) Cold Cap Evaluation Furnace (CEF), a 1/12th scale DWPF melter, was selected by the SRR Alternate Reductant project team as the melter platform for this testing. The overall scope was divided into the following sub-tasks as discussed in the Task Technical and Quality Assurance Plan (TTQAP): ? Phase I - A nitric–formic acid flowsheet melter test (unbubbled) to baseline the Cold Cap Evaluation Furnace (CEF) cold cap and vapor space data to the benchmark melter flammability models ? Phase II - A nitric–glycolic acid flowsheet melter test (unbubbled and bubbled) to: o Define new cold cap reactions and global kinetic parameters for the melter flammability models o Quantify off-gas surging potential of the feed o Characterize off-gas condensate for complete organic and inorganic carbon species Prior to startup, a number of improvements and modifications were made to the CEF, including addition of cameras, vessel support temperature measurement, and a heating element near the pour tube. After charging the CEF with cullet from a previous Sludge Batch 6 (SB6) run, the melter was slurry-fed with SB6-Frit 418 melter feed at 36% waste loading and was operated continuously for 6 days. Process data was collected throughout testing and included melter operation variables and off-gas chemistry. In order to satisfy the objective of Phase I testing, vapor space steady testing in the range of ~300°C-700°C was conducted without argon bubbling to baseline the melter data to the existing DWPF melter flammability model. Adjustments to heater outputs, air flows and feed rate were necessary in order to achieve the vapor space temperatures in this range. The results of the Phase I testing demonstrated that the CEF is capable of operating under the low vapor space temperatures A melter pressure of -5 inches of water was not sustained throughout the run, but the melter did remain slightly negative even with the maximum air flows required for the lowest temperature conditions were used. The auxiliary pour tube heater improved the pouring behavior at all test conditions, including reduced feed rates required for the low vapor space testing. Argon bubbling can be used to promote mixing and increase feed rate at multiple conditions. Improvements due to bubbling have been determined previously; however, the addition of the cameras to the CEF allows for visual observation during a range of bubbling configurations. The off-gas analysis system proved to be robust and capable of operating for long durations. The total operational hours on the melter vessel are approximately 385 hours. Dimensional measurements taken prior to Phase I testing and support block temperatures recorded during Phase I testing are available if an extension of service life beyond 1250 hours is desired in the future.

Johnson, F.; Miller, D.; Zamecnik, J.; Lambert, D.

2014-04-22T23:59:59.000Z

113

Cold War Entanglements of Social ANDY BYFORD  

E-Print Network (OSTI)

Social Science: Knowledge Production, Liberal Democracy, and Human Nature, edited by Mark Solovey.byford@durham.ac.uk # 2013 Process Press #12;period of its institutional development. It denotes that the Cold War was more of the `militarization' of US social science in this era (Robin, 2001), but a much broader exploration of the complex

Solovey, Mark

114

Cold Climates Heat Pump Design Optimization  

SciTech Connect

Heat pumps provide an efficient heating method; however they suffer from sever capacity and performance degradation at low ambient conditions. This has deterred market penetration in cold climates. There is a continuing effort to find an efficient air source cold climate heat pump that maintains acceptable capacity and performance at low ambient conditions. Systematic optimization techniques provide a reliable approach for the design of such systems. This paper presents a step-by-step approach for the design optimization of cold climate heat pumps. We first start by describing the optimization problem: objective function, constraints, and design space. Then we illustrate how to perform this design optimization using an open source publically available optimization toolbox. The response of the heat pump design was evaluated using a validated component based vapor compression model. This model was treated as a black box model within the optimization framework. Optimum designs for different system configurations are presented. These optimum results were further analyzed to understand the performance tradeoff and selection criteria. The paper ends with a discussion on the use of systematic optimization for the cold climate heat pump design.

Abdelaziz, Omar [ORNL] [ORNL; Shen, Bo [ORNL] [ORNL

2012-01-01T23:59:59.000Z

115

Submesoscale Cold Filaments in the Gulf Stream  

Science Journals Connector (OSTI)

A set of realistic, very high-resolution simulations is made for the Gulf Stream region using the oceanic model Regional Oceanic Modeling System (ROMS) to study the life cycle of the intense submesoscale cold filaments that form on the subtropical ...

Jonathan Gula; M. Jeroen Molemaker; James C. McWilliams

2014-10-01T23:59:59.000Z

116

Compact cold stage for micro-computerized tomography imaging of chilled or frozen samples  

SciTech Connect

High resolution X-ray microCT (computerized tomography) can be used to image a variety of objects, including temperature-sensitive materials. In cases where the sample must be chilled or frozen to maintain sample integrity, either the microCT machine itself must be placed in a refrigerated chamber, or a relatively expensive commercial cold stage must be purchased. We describe here the design and construction of a low-cost custom cold stage suitable for use in a microCT imaging system. Our device uses a boron nitride sample holder, two-stage Peltier cooler, fan-cooled heat sink, and electronic controller to maintain sample temperatures as low as ?25?°C ± 0.2?°C for the duration of a tomography acquisition. The design does not require modification to the microCT machine, and is easily installed and removed. Our custom cold stage represents a cost-effective solution for refrigerating CT samples for imaging, and is especially useful for shared equipment or machines unsuitable for cold room use.

Hullar, Ted; Anastasio, Cort, E-mail: canastasio@ucdavis.edu [Department of Land, Air, and Water Resources, University of California, Davis, California 95616 (United States)] [Department of Land, Air, and Water Resources, University of California, Davis, California 95616 (United States); Paige, David F. [Paige Instruments, Woodland, California 95776 (United States)] [Paige Instruments, Woodland, California 95776 (United States); Rowland, Douglas J. [Center for Molecular and Genomic Imaging, Department of Biomedical Engineering, University of California, Davis, California 95616 (United States)] [Center for Molecular and Genomic Imaging, Department of Biomedical Engineering, University of California, Davis, California 95616 (United States)

2014-04-15T23:59:59.000Z

117

Influence of projectile neutron number on cross section in cold fusion reactions  

E-Print Network (OSTI)

ON CROSS SECTION IN COLD FUSION REACTIONS I. Dragojevi? ,type of reaction has been referred to as “cold fusion. ”The study of cold fusion reactions is an indispensable

Dragojevic, I.

2008-01-01T23:59:59.000Z

118

NUCLEAR WASTE VITRIFICATION EFFICIENCY COLD CAP REACTIONS  

SciTech Connect

The cost and schedule of nuclear waste treatment and immobilization are greatly affected by the rate of glass production. Various factors influence the performance of a waste-glass melter. One of the most significant, and also one of the least understood, is the process of batch melting. Studies are being conducted to gain fundamental understanding of the batch reactions, particularly those that influence the rate of melting, and models are being developed to link batch makeup and melter operation to the melting rate. Batch melting takes place within the cold cap, i.e., a batch layer floating on the surface of molten glass. The conversion of batch to glass consists of various chemical reactions, phase transitions, and diffusion-controlled processes. These include water evaporation (slurry feed contains as high as 60% water), gas evolution, the melting of salts, the formation of borate melt, reactions of borate melt with molten salts and with amorphous oxides (Fe{sub 2}O{sub 3} and Al{sub 2}O{sub 3}), the formation of intermediate crystalline phases, the formation of a continuous glass-forming melt, the growth and collapse of primary foam, and the dissolution of residual solids. To this list we also need to add the formation of secondary foam that originates from molten glass but accumulates on the bottom of the cold cap. This study presents relevant data obtained for a high-level-waste melter feed and introduces a one-dimensional (1D) mathematical model of the cold cap as a step toward an advanced three-dimensional (3D) version for a complete model of the waste glass melter. The 1D model describes the batch-to-glass conversion within the cold cap as it progresses in a vertical direction. With constitutive equations and key parameters based on measured data, and simplified boundary conditions on the cold-cap interfaces with the glass melt and the plenum space of the melter, the model provides sensitivity analysis of the response of the cold cap to the batch makeup and melter conditions. The model demonstrates that batch foaming has a decisive influence on the rate of melting. Understanding the dynamics of the foam layer at the bottom of the cold cap and the heat transfer through it appears crucial for a reliable prediction of the rate of melting as a function of the melter-feed makeup and melter operation parameters. Although the study is focused on a batch for waste vitrification, the authors expect that the outcome will also be relevant for commercial glass melting.

KRUGER AA; HRMA PR; POKORNY R

2011-07-29T23:59:59.000Z

119

Nuclear waste vitrification efficiency: cold cap reactions  

SciTech Connect

The cost and schedule of nuclear waste treatment and immobilization are greatly affected by the rate of glass production. Various factors influence the performance of a waste-glass melter. One of the most significant, and also one of the least understood, is the process of batch melting. Studies are being conducted to gain fundamental understanding of the batch reactions, particularly those that influence the rate of melting, and models are being developed to link batch makeup and melter operation to the melting rate. Batch melting takes place within the cold cap, i.e., a batch layer floating on the surface of molten glass. The conversion of batch to glass consists of various chemical reactions, phase transitions, and diffusion-controlled processes. These include water evaporation (slurry feed contains as high as 60% water), gas evolution, the melting of salts, the formation of borate melt, reactions of borate melt with molten salts and with amorphous oxides (Fe2O3 and Al2O3), the formation of intermediate crystalline phases, the formation of a continuous glass-forming melt, the growth and collapse of primary foam, and the dissolution of residual solids. To this list we also need to add the formation of secondary foam that originates from molten glass but accumulates on the bottom of the cold cap. This study presents relevant data obtained for a high-level-waste melter feed and introduces a one-dimensional (1D) mathematical model of the cold cap as a step toward an advanced three-dimensional (3D) version for a complete model of the waste glass melter. The 1D model describes the batch-to-glass conversion within the cold cap as it progresses in a vertical direction. With constitutive equations and key parameters based on measured data, and simplified boundary conditions on the cold-cap interfaces with the glass melt and the plenum space of the melter, the model provides sensitivity analysis of the response of the cold cap to the batch makeup and melter conditions. The model demonstrates that batch foaming has a decisive influence on the rate of melting. Understanding the dynamics of the foam layer at the bottom of the cold cap and the heat transfer through it appears crucial for a reliable prediction of the rate of melting as a function of the melter-feed makeup and melter operation parameters. Although the study is focused on a batch for waste vitrification, the authors expect that the outcome will also be relevant for commercial glass melting.

Hrma, Pavel R.; Kruger, Albert A.; Pokorny, Richard

2012-12-15T23:59:59.000Z

120

New Constraint on Open Cold-Dark-Matter Models  

E-Print Network (OSTI)

We calculate the large-angle cross-correlation between the cosmic-microwave-background (CMB) temperature and the x-ray-background (XRB) intensity expected in an open Universe with cold dark matter (CDM) and a nearly scale-invariant spectrum of adiabatic density perturbations. Results are presented as a function of the nonrelativistic-matter density $\\Omega_0$ (in units of the critical density) and the x-ray bias $b_x$ (evaluated at a redshift $z\\simeq1$ in evolving-bias models) for both an open Universe and a flat cosmological-constant Universe. Recent experimental upper limits to the amplitude of this cross-correlation provide a new constraint to the $\\Omega_0$-$b_x$ parameter space that open-CDM models (and the open-inflation models that produce them) must satisfy.

Ali Kinkhabwala; Marc Kamionkowski

1999-05-03T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Progress on a Miniature Cold-Atom Frequency Standard  

E-Print Network (OSTI)

Atomic clocks play a crucial role in timekeeping, communications, and navigation systems. Recent efforts enabled by heterogeneous MEMS integration have led to the commercial introduction of Chip-Scale Atomic Clocks (CSAC) with a volume of 16 cm3, power consumption of 120 mW, and instability (Allan Deviation) of {\\sigma}({\\tau} = 1 sec) cooled atoms. In this paper, we present results describing the development of a miniature cold-atom apparatus for operation as a frequency standard. Our architecture is based on laser-cooling a sample of neutral atoms in a Magneto-Optical Trap (MOT) using a conical retro-reflector in a miniature vacuum chamber. Trapping the atoms in vacuum and performing microwave interrogation in the dark reduces the temperature sensitivity compared to va...

Scherer, David R; Mescher, Mark; Stoner, Richard; Timmons, Brian; Rogomentich, Fran; Tepolt, Gary; Mahnkopf, Sven; Noble, Jay; Chang, Sheng; Taylor, Dwayne

2014-01-01T23:59:59.000Z

122

Building Technologies Office: Cold Climate Heat Pump Research Project  

NLE Websites -- All DOE Office Websites (Extended Search)

Cold Climate Heat Pump Cold Climate Heat Pump Research Project to someone by E-mail Share Building Technologies Office: Cold Climate Heat Pump Research Project on Facebook Tweet about Building Technologies Office: Cold Climate Heat Pump Research Project on Twitter Bookmark Building Technologies Office: Cold Climate Heat Pump Research Project on Google Bookmark Building Technologies Office: Cold Climate Heat Pump Research Project on Delicious Rank Building Technologies Office: Cold Climate Heat Pump Research Project on Digg Find More places to share Building Technologies Office: Cold Climate Heat Pump Research Project on AddThis.com... About Take Action to Save Energy Partner with DOE Activities Appliances Research Building Envelope Research Windows, Skylights, & Doors Research Space Heating & Cooling Research

123

Cold neutron research facility at the Budapest Neutron Centre  

Science Journals Connector (OSTI)

The new cold neutron research facility has been routinely operated at the Budapest Neutron Centre (BNC) since February 2001. This ... of equipment consists of a liquid hydrogen cold neutron source, an optimised s...

L. Rosta

2002-12-01T23:59:59.000Z

124

Cold quark matter, quadratic corrections, and gauge/string duality  

Science Journals Connector (OSTI)

We make an estimate of the quadratic correction in the pressure of cold quark matter using gauge/string duality.

Oleg Andreev

2010-04-05T23:59:59.000Z

125

COLD FRONTS AND GAS SLOSHING IN GALAXY CLUSTERS WITH ANISOTROPIC THERMAL CONDUCTION  

SciTech Connect

Cold fronts in cluster cool cores should be erased on short timescales by thermal conduction, unless protected by magnetic fields that are 'draped' parallel to the front surfaces, suppressing conduction perpendicular to the sloshing fronts. We present a series of MHD simulations of cold front formation in the core of a galaxy cluster with anisotropic thermal conduction, exploring a parameter space of conduction strengths parallel and perpendicular to the field lines. Including conduction has a strong effect on the temperature distribution of the core and the appearance of the cold fronts. Though magnetic field lines are draping parallel to the front surfaces, preventing conduction directly across them, the temperature jumps across the fronts are nevertheless reduced. The geometry of the field is such that the cold gas below the front surfaces can be connected to hotter regions outside via field lines along directions perpendicular to the plane of the sloshing motions and along sections of the front that are not perfectly draped. This results in the heating of this gas below the front on a timescale of a Gyr, but the sharpness of the density and temperature jumps may nevertheless be preserved. By modifying the gas density distribution below the front, conduction may indirectly aid in suppressing Kelvin-Helmholtz instabilities. If conduction along the field lines is unsuppressed, we find that the characteristic sharp jumps seen in Chandra observations of cold front clusters do not form. Therefore, the presence of cold fronts in hot clusters is in contradiction with our simulations with full Spitzer conduction. This suggests that the presence of cold fronts in hot clusters could be used to place upper limits on conduction in the bulk of the intracluster medium. Finally, the combination of sloshing and anisotropic thermal conduction can result in a larger flux of heat to the core than either process in isolation. While still not sufficient to prevent a cooling catastrophe in the very central (r {approx} 5 kpc) regions of the cool core (where something else is required, such as active galactic nucleus feedback), it reduces significantly the mass of gas that experiences a cooling catastrophe outside those small radii.

ZuHone, J. A.; Markevitch, M. [Astrophysics Science Division, Laboratory for High Energy Astrophysics, Code 662, NASA/Goddard Space Flight Center, Greenbelt, MD 20771 (United States)] [Astrophysics Science Division, Laboratory for High Energy Astrophysics, Code 662, NASA/Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Ruszkowski, M. [Department of Astronomy, University of Michigan, 500 Church Street, Ann Arbor, MI 48109 (United States)] [Department of Astronomy, University of Michigan, 500 Church Street, Ann Arbor, MI 48109 (United States); Lee, D. [The Flash Center for Computational Science, The University of Chicago, 5747 S. Ellis, Chicago, IL 60637 (United States)] [The Flash Center for Computational Science, The University of Chicago, 5747 S. Ellis, Chicago, IL 60637 (United States)

2013-01-10T23:59:59.000Z

126

Page 1 of 3 Policy: Cold Weather Policy  

E-Print Network (OSTI)

value. The Safety and Risk Management Policy endorses programs, procedures and resources which assist departments. 2. Extra notification to occupants prior to significant cold weather events. 3. Assist 1. Establish, with the assistance of SRM, cold weather procedures. 2. Follow established cold

Dyer, Bill

127

COLD FUSION ONE YEAR AFTER R. Battiston and C. Presilla  

E-Print Network (OSTI)

230 COLD FUSION ONE YEAR AFTER R. Battiston and C. Presilla Dipartimento di Fi$ica dell The one year long history of cold fusion is critically reviewed on the basis of the more recent results has of science. In this lecture we will discuss of the status of the cold fusion searches one year

Presilla, Carlo

128

Investigation of distortional buckling of cold-formed steel sections  

E-Print Network (OSTI)

Investigation of distortional buckling of cold-formed steel sections Researcher: Chong Ren Supervisors: Dr Long-yuan Li Dr Jian Yang Aims and Objectives Thin-walled, cold-formed steel sections considered to be the most popular products and account for a substantial proportion of cold-formed steel

Birmingham, University of

129

Cold Boot Key Recovery by Solving Polynomial Systems with Noise  

E-Print Network (OSTI)

Cold Boot Key Recovery by Solving Polynomial Systems with Noise Martin Albrecht and Carlos Cid 1 proposed in [9]; the technique was called Cold Boot attacks. When considering block ciphers Cold Boot attacks, was proposed in [9] and also provided an insight into the strength of a particular

Sheldon, Nathan D.

130

Scale Invariance and Universality in a Cold Gas of Indirect Excitons  

Science Journals Connector (OSTI)

We address, theoretically, the puzzling similarity observed in the thermodynamic behavior of independent clouds of cold dipolar excitons in coupled semiconductor quantum wells. We argue that the condensation of self-trapped exciton gas starts at the same critical temperature in all traps due to the specific scaling rule. As a consequence of the reduced dimensionality of the system, the scaling parameters appear to be insensitive to disorder.

S.?V. Andreev, A.?A. Varlamov, and A.?V. Kavokin

2014-01-23T23:59:59.000Z

131

Stable Higgs Bosons as Cold Dark Matter  

E-Print Network (OSTI)

In a class of the gauge-Higgs unification models the 4D neutral Higgs boson, which is a part of the extra-dimensional component of the gauge fields, becomes absolutely stable as a consequence of the gauge invariance and dynamically generated new parity, serving as a promising candidate for cold dark matter (CDM). We show that the observed relic abundance of cold dark matter is obtained in the SO(5) x U(1) model in the warped space with the Higgs mass around 70 GeV. The Higgs-nucleon scattering cross section is found to be close to the current CDMS II and XENON10 bounds in the direct detection of dark matter.

Yutaka Hosotani; Pyungwon Ko; Minoru Tanaka

2009-08-03T23:59:59.000Z

132

Cryogenic target formation using cold gas jets  

DOE Patents (OSTI)

A method and apparatus using cold gas jets for producing a substantially uniform layer of cryogenic materials on the inner surface of hollow spherical members having one or more layers, such as inertially imploded targets. By vaporizing and quickly refreezing cryogenic materials contained within a hollow spherical member, a uniform layer of the materials is formed on an inner surface of the spherical member. Basically the method involves directing cold gas jets onto a spherical member having one or more layers or shells and containing the cryogenic material, such as a deuterium-tritium (DT) mixture, to freeze the contained material, momentarily heating the spherical member so as to vaporize the contained material, and quickly refreezing the thus vaporized material forming a uniform layer of cryogenic material on an inner surface of the spherical member.

Hendricks, Charles D. (Livermore, CA)

1981-01-01T23:59:59.000Z

133

Cryogenic target formation using cold gas jets  

DOE Patents (OSTI)

A method and apparatus using cold gas jets for producing a substantially uniform layer of cryogenic materials on the inner surface of hollow spherical members having one or more layers, such as inertially imploded targets are disclosed. By vaporizing and quickly refreezing cryogenic materials contained within a hollow spherical member, a uniform layer of the materials is formed on an inner surface of the spherical member. Basically the method involves directing cold gas jets onto a spherical member having one or more layers or shells and containing the cryogenic material, such as a deuterium-tritium (DT) mixture, to freeze the contained material, momentarily heating the spherical member so as to vaporize the contained material, and quickly refreezing the thus vaporized material forming a uniform layer of cryogenic material on an inner surface of the spherical member. 4 figs.

Hendricks, C.D.

1980-02-26T23:59:59.000Z

134

Cryogenic target formation using cold gas jets  

DOE Patents (OSTI)

A method and apparatus using cold gas jets for producing a substantially uniform layer of cryogenic materials on the inner surface of hollow spherical members having one or more layers, such as inertially imploded targets. By vaporizing and quickly refreezing cryogenic materials contained within a hollow spherical member, a uniform layer of the materials is formed on an inner surface of the spherical member. Basically the method involves directing cold gas jets onto a spherical member having one or more layers or shells and containing the cryogenic material, such as a deuterium-tritium (DT) mixture, to freeze the contained material, momentarily heating the spherical member so as to vaporize the contained material, and quickly refreezing the thus vaporized material forming a uniform layer of cryogenic material on an inner surface of the spherical member.

Hendricks, Charles D. [Livermore, CA

1980-02-26T23:59:59.000Z

135

Cold Urticaria, Immunodeficiency, and Autoimmunity Related to PLCG2 Deletions  

Science Journals Connector (OSTI)

...Supplementary Appendix) and generalized exposure to cold air, findings that are consistent with their reports that symptoms were often elicited by cold wind rather than contact with cold objects. Of the 27 subjects who were tested, 26 had immunologic abnormalities in addition to cold urticaria (Table S1... Analyses of families affected by cold urticaria, immunodeficiency, and autoimmunity implicate mutations that activate phospholipase C?2 (PLC?2), an enzyme pivotal to the translation of binding events at the cell surface to the intracellular milieu, as a cause of the disease.

Ombrello M.J.; Remmers E.F.; Sun G.

2012-01-26T23:59:59.000Z

136

Cold Vacuum Drying Facility hazard analysis report  

SciTech Connect

This report describes the methodology used in conducting the Cold Vacuum Drying Facility (CVDF) hazard analysis to support the CVDF phase 2 safety analysis report (SAR), and documents the results. The hazard analysis was performed in accordance with DOE-STD-3009-94, Preparation Guide for US Department of Energy Nonreactor Nuclear Facility Safety Analysis Reports, and implements the requirements of US Department of Energy (DOE) Order 5480.23, Nuclear Safety Analysis Reports.

Krahn, D.E.

1998-02-23T23:59:59.000Z

137

Air heating of passive houses in cold climates: Investigation using detailed dynamic simulations  

Science Journals Connector (OSTI)

Abstract The passive house (PH) standard was originally defined for Central Europe and has subsequently been applied to many cold climate countries. In these conditions, the relation between this standard and the air heating (AH) is not clear while both concepts are usually associated. Furthermore, the AH provides a way to simplify the space-heating distribution system. The present contribution investigates the feasibility of the AH concept in PH along with its challenges in terms of thermal dynamics: the magnitude of the AH temperature needed, the temperature difference between rooms, the impact of internal gains, the influence of thermal losses from ventilation ducts and the AH control. This is performed using detailed dynamic simulations (TRNSYS) on a typical detached house typology. Practically, four cold climate zones are considered as well as different insulation levels and construction materials. Results show limitations related to a centralized AH as well as provide guidelines for a consistent AH design in cold climates. In addition, a simple analytical method used for the design of German PH is tested and proved accurate enough to estimate the maximal AH temperature during the heating season.

Laurent Georges; Monica Berner; Hans Martin Mathisen

2014-01-01T23:59:59.000Z

138

TabletopAccelerator Breaks`Cold Fusion'Jinx ButWon'tYield Energy,Physicists Say  

E-Print Network (OSTI)

TabletopAccelerator Breaks`Cold Fusion'Jinx ButWon'tYield Energy,Physicists Say A crystal with a strange property is at the heart of a clever method for inducing nuclear fusion in a tabletop-sized device-rays for medical therapies. Although the field of room-temperature fusion is littered with scandals and dubious

139

Long-range 1D gravitational-like interaction in a neutral atomic cold gas M. Chalony,1  

E-Print Network (OSTI)

Long-range 1D gravitational-like interaction in a neutral atomic cold gas M. Chalony,1 J. Barr´e,2 of this force to build in the lab a systems of particles with a 1D gravitational-like interaction, at a fluid; canonical (fixed temperature) and microcanonical (fixed energy) ensembles are not equivalent. These special

140

Cold-Crucible Induction Melter Design and Development  

SciTech Connect

The international process for immobilization of high-activity waste from aqueous fuel reprocessing is vitrification. In the United States joule-heated melter technology has been implemented at West Valley and the Savannah River Site, but improved melter concepts are sought to bring down the costs of processing. The cold-crucible induction melter (CCIM) design is being evaluated for many applications, including radioactive wastes because it eliminates many materials and operating constraints inherent in the baseline technology. The cold-crucible design is also smaller, less expensive, and generates much less waste for ultimate disposal. In addition, it should allow a much more flexible operating envelope, which will be crucial if the heterogeneous wastes at the U.S. Department of Energy (DOE) reprocessing sites are to be vitrified.A joule-heated melter operates by passing current between water-cooled electrodes through a molten pool in a refractory-lined chamber. This design is inherently limited by susceptibility of materials to corrosion and melting. In addition, redox conditions and free metal content have exacerbated materials problems or lead to electrical short-circuiting causing failures in developmental DOE melters. In contrast, the CCIM design is based on inductive coupling of a water-cooled high-frequency electrical coil with the glass, causing eddy currents that produce heat and mixing.While significant marketing claims have been made by technology suppliers and developers, little data is available for engineering and economic evaluation of the technology, and no facilities are available in the United States to support testing. In addition to verifying the capabilities of the technology, further development can exploit opportunities for optimization through better understanding of the electromagnetic thermal phenomena intrinsic to the cold-crucible melter. Induction frequency, applied power, and coil and crucible configuration are all related but independent variables that can be explored to optimize throughput while designing a system for maximum reliability in a remote environment. This paper is an introduction to the technology as it applies to vitrification of materials not electrically conductive at ambient temperatures, the potential for research improvements, and the new system being built at the Idaho National Engineering and Environmental Laboratory.

Gombert, Dirk; Richardson, John R. [Bechtel BWXT Idaho, LLC (United States)

2003-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

ALTERNATE REDUCTANT COLD CAP EVALUATION FURNACE PHASE II TESTING  

SciTech Connect

Savannah River Remediation (SRR) conducted a Systems Engineering Evaluation (SEE) to determine the optimum alternate reductant flowsheet for the Defense Waste Processing Facility (DWPF). Specifically, two proposed flowsheets (nitric–formic–glycolic and nitric–formic–sugar) were evaluated based upon results from preliminary testing. Comparison of the two flowsheets among evaluation criteria indicated a preference towards the nitric–formic–glycolic flowsheet. Further research and development of this flowsheet eliminated the formic acid, and as a result, the nitric–glycolic flowsheet was recommended for further testing. Based on the development of a roadmap for the nitric–glycolic acid flowsheet, Waste Solidification Engineering (WS-E) issued a Technical Task Request (TTR) to address flammability issues that may impact the implementation of this flowsheet. Melter testing was requested in order to define the DWPF flammability envelope for the nitric-glycolic acid flowsheet. The Savannah River National Laboratory (SRNL) Cold Cap Evaluation Furnace (CEF), a 1/12th scale DWPF melter, was selected by the SRR Alternate Reductant project team as the melter platform for this testing. The overall scope was divided into the following sub-tasks as discussed in the Task Technical and Quality Assurance Plan (TTQAP): ? Phase I - A nitric–formic acid flowsheet melter test (unbubbled) to baseline the CEF cold cap and vapor space data to the benchmark melter flammability models; ? Phase II - A nitric–glycolic acid flowsheet melter test (unbubbled and bubbled) to: o Define new cold cap reactions and global kinetic parameters in support of the melter flammability model development; o Quantify off-gas surging potential of the feed; o Characterize off-gas condensate for complete organic and inorganic carbon species. After charging the CEF with cullet from Phase I CEF testing, the melter was slurry-fed with glycolic flowsheet based SB6-Frit 418 melter feed at 36% waste loading and was operated continuously for 25 days. Process data was collected throughout testing and included melter operation parameters and off-gas chemistry. In order to generate off-gas data in support of the flammability model development for the nitric-glycolic flowsheet, vapor space steady state testing in the range of ~300-750°C was conducted under the following conditions, (i) 100% (nominal and excess antifoam levels) and 125% stoichiometry feed and (ii) with and without argon bubbling. Adjustments to feed rate, heater outputs and purge air flow were necessary in order to achieve vapor space temperatures in this range. Surge testing was also completed under nominal conditions for four days with argon bubbling and one day without argon bubbling.

Johnson, F.; Stone, M.; Miller, D.

2014-09-03T23:59:59.000Z

142

Compressor Selection and Equipment Sizing for Cold Climate Heat Pumps  

SciTech Connect

In order to limit heating capacity degradation at -25 C (-13 F) ambient to 25%, compared to the nominal rating point capacity at 8.3 C (47 F), an extensive array of design and sizing options were investigated, based on fundamental equipment system modeling and building energy simulation. Sixteen equipment design options were evaluated in one commercial building and one residential building, respectively in seven cities. The energy simulation results were compared to three baseline cases: 100% electric resistance heating, a 9.6 HSPF single-speed heat pump unit, and 90% AFUE gas heating system. The general recommendation is that variable-speed compressors and tandem compressors, sized such that their rated heating capacity at a low speed matching the building design cooling load, are able to achieve the capacity goal at low ambient temperatures by over-speeding, for example, a home with a 3.0 ton design cooling load, a tandem heat pump could meet this cooling load running a single compressor, while running both compressors to meet heating load at low ambient temperatures in a cold climate. Energy savings and electric resistance heat reductions vary with building types, energy codes and climate zones. Oversizing a heat pump can result in larger energy saving in a less energy efficient building and colder regions due to reducing electric resistance heating. However, in a more energy-efficient building or for buildings in warmer climates, one has to consider balance between reduction of resistance heat and addition of cyclic loss.

Shen, Bo [ORNL] [ORNL; Abdelaziz, Omar [ORNL] [ORNL; Rice, C Keith [ORNL] [ORNL

2014-01-01T23:59:59.000Z

143

Pressure &Pressure & TemperatureTemperature  

E-Print Network (OSTI)

to measure atmospheric pressure, and thermometer toprobe to measure atmospheric pressure, and thermometer toprobe to measure atmospheric pressure, and thermometer toprobe to measure atmospheric pressure, and thermometer to measure air temperature.measure air temperature.measure air temperature.measure air temperature

California at Santa Cruz, University of

144

Holographic cold nuclear matter and neutron star  

E-Print Network (OSTI)

We have previously found a new phase of cold nuclear matter based on a holographic gauge theory, where baryons are introduced as instanton gas in the probe D8/$\\overline{\\rm D8}$ branes. In our model, we could obtain the equation of state (EOS) of our nuclear matter by introducing fermi momentum. Then, here we apply this model to the neutron star and study its mass and radius by solving the Tolman-Oppenheimer-Volkoff (TOV) equations in terms of the EOS given here. We give some comments for our holographic model from a viewpoint of the other field theoretical approaches.

Kazuo Ghoroku; Kouki Kubo; Motoi Tachibana; Fumihiko Toyoda

2013-11-07T23:59:59.000Z

145

Spectroscopy of a cold strontium Rydberg gas  

E-Print Network (OSTI)

We present a study of a cold strontium Rydberg gas. The narrowband laser excitation of Rydberg states in the range n=20-80 from a 6~mK cloud of strontium atoms is detected using the spontaneous ionization of the Rydberg atoms. Using a high-resolution step-scanning technique, we perform detailed measurements of the Stark maps of selected Rydberg states. We find excellent agreement between the measured Stark maps and a numerical calculation based on an independent-electron model. Finally we show that excitation of the second valence electron can be used to probe the dynamics of the Rydberg gas with nanosecond temporal resolution via autoionization.

Millen, J; Corbett, G R; Potvliege, R M; Jones, M P A

2011-01-01T23:59:59.000Z

146

Recrystallization of heavy metals after cold deformation  

SciTech Connect

Rapid heating experiments, of the order of tens of seconds, were performed on a 90%W-7%Ni-3%Fe alloy, which was cold worked by rotary swaging to 50% reduction in diameter. It was found that even very short periods of heating brings to the separation of the elongated tungsten grains into small round ones, therefore refining the microstructure. The process involves melting of the matrix and its penetration into the tungsten grains. During cooling, very small, new grains are precipitated. It is suggested that grain refining is achieved by penetration of the molten matrix into the solid tungsten grains through subgrain boundaries.

Goren-Muginstein, G.R.; Rosen, A. [Israel Inst. of Tech., Haifa (Israel). Dept. of Materials Engineering

1996-06-01T23:59:59.000Z

147

Cold Climate Heat Pump Research Project | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Emerging Technologies » Cold Climate Heat Pump Research Project Emerging Technologies » Cold Climate Heat Pump Research Project Cold Climate Heat Pump Research Project The U.S. Department of Energy is currently conducting research into cold climate heat pumps. The research is designed to overcome technical and economic barriers that limit market penetration in cold climates. Project Description This project seeks to develop a high-performance, cold climate heat pump technology using multi-stage compressor technology. Several vapor compression cycle configurations are being examined and optimized for superior performance. Target performance and preliminary results will be used to perform a detailed market assessment in order to investigate the national impact and potential market penetration. Project Partners Research is being undertaken through a cooperative research and development

148

Is it a Cold or the Flu? -Know the Difference Signs & Symptoms Cold Flu  

E-Print Network (OSTI)

Rare Usual; high (100.40 F to 1020 F) is typical; lasts 3-4 days Cough Hacking: mild Dry; can become discomfort Mild to moderate; hacking cough Common Treatment Antihistamines Decongestants Advil® (ibuprofen. Avoid close contact with anyone with a cold. Vaccination. Wash your hands. Cover your cough. Stay

Mahon, Bradford Z.

149

Building America Best Practices, Vol. 12- Builders Challenge Guide to 40% Whole-House Energy Savings in the Cold and Very Cold Climates  

Energy.gov (U.S. Department of Energy (DOE))

This Best Practices guide outlines energy saving practices to achieve 40% energy savings in the cold and very cold U.S. climate region.

150

Joint Institute for High Temperatures  

National Nuclear Security Administration (NNSA)

Joint Institute for High Temperatures of Russian Academy of Sciences Moscow Institute of Physics and Technology Extended title Extended title Excited state of warm dense matter or Exotic state of warm dense matter or Novel form of warm dense matter or New form of plasma Three sources of generation similarity: solid state density, two temperatures: electron temperature about tens eV, cold ions keep original crystallographic positions, but electron band structure and phonon dispersion are changed, transient but steady (quasi-stationary for a short time) state of non-equilibrium, uniform plasmas (no reference to non-ideality, both strongly and weakly coupled plasmas can be formed) spectral line spectra are emitted by ion cores embedded in plasma environment which influences the spectra strongly,

151

Laboratory's role in Cold War nuclear weapons testing program...  

NLE Websites -- All DOE Office Websites (Extended Search)

70th anniversary lecture Laboratory's role in Cold War nuclear weapons testing program focus of next 70th anniversary lecture Lab's role in the development of nuclear weapons...

152

Microsoft Word - 0Hrma ColdCap Final (2)  

NLE Websites -- All DOE Office Websites (Extended Search)

INVESTIGATION AND MATHEMATICAL MODELING OF COLD CAP BEHAVIOR IN HIGH-LEVEL-WASTE GLASS MELTER Pavel Hrma Pacific Northwest National Laboratory Richland, WA 99352 USA ABSTRACT The...

153

A new conceptual cold-end design of boilers for coal-fired power plants with waste heat recovery  

Science Journals Connector (OSTI)

Abstract After conducting an in-depth analysis of the conventional boiler cold-end design for waste heat recovery, this work proposed a new conceptual boiler cold-end design integrated with the steam cycle in a 1000 MW CFPP, in which the preheating of air was divided into high-temperature air preheater (HTAP), main air preheater (MAP) and low-temperature air preheater (LTAP). The HTAP and an economizer were installed in separate flue ducts, and the low temperature economizer (LTE) was situated between the MAP and the LTAP in the main flue duct to heat the condensed water. In the proposed boiler cold-end design, the flue gas waste heat was not only used to heat condensed water, but also to further preheat the combustion air. The air temperature at the air-preheater outlet increases and part of the steam bleeds with high exergy can be saved, resulting in greater energy-savings and better economics. Results showed that, for a typical 1000 MW CFPP in China, using the proposed boiler cold-end design for waste heat recovery could produce 13.3 MWe additional net power output with a heat rate reduction of approximately 112.0 kJ/kW h and could yield a net benefit of up to $85.8 M per year, which is much greater than those of the conventional cases. Exergy destruction is also reduced from 49.9 MWth in the conventional boiler cold-end design to 39.6 MWth in the proposed design.

Yongping Yang; Cheng Xu; Gang Xu; Yu Han; Yaxiong Fang; Dongke Zhang

2015-01-01T23:59:59.000Z

154

Cold Crucible Induction Melting Technology for Vitrification of High Level Waste: Development and Status in India  

SciTech Connect

Cold crucible induction melting is globally emerging as an alternative technology for the vitrification of high level radioactive waste. The new technology offers several advantages such as high temperature availability with long melter life, high waste loading, high specific capacity etc. Based on the laboratory and bench scale studies, an engineering scale cold crucible induction melter was locally developed in India. The melter was operated continuously to assess its performance. The electrical and thermal efficiencies were found to be in the range of 70-80 % and 10-20 % respectively. Glass melting capacities up to 200 kg m{sup -2} hr{sup -1} were accomplished using the ESCCIM. Industrially adaptable melter operating procedures for start-up, melting and pouring operations were established (author)

Sugilal, G.; Sengar, P.B.S. [Nuclear Recycle Group, Bhabha Atomic Research Centre, Trombay, Mumbai (India)

2008-07-01T23:59:59.000Z

155

Treatment of enterococcus faecalis bacteria by a helium atmospheric cold plasma brush with oxygen addition  

SciTech Connect

An atmospheric cold plasma brush suitable for large area and low-temperature plasma-based sterilization is designed. Results demonstrate that the He/O{sub 2} plasma more effectively kills Enterococcus faecalis than the pure He plasma. In addition, the sterilization efficiency values of the He/O{sub 2} plasma depend on the oxygen fraction in Helium gas. The atmospheric cold plasma brush using a proper ratio of He/O{sub 2} (2.5%) reaches the optimum sterilization efficiency. After plasma treatment, the cell structure and morphology changes can be observed by the scanning electron microscopy. Optical emission measurements indicate that reactive species such as O and OH play a significant role in the sterilization process.

Chen Wei; Huang Jun; Wang Xingquan; Lv Guohua; Zhang Guoping [Key Laboratory of Soft Matter Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, 100190 Beijing (China); Du Ning; Liu Xiaodi; Guo Lihong [Department of Oral Biology, Peking University School and Hospital of Stomatology, 100080 Beijing (China); Yang Size [Key Laboratory of Soft Matter Physics, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science, 100190 Beijing (China); Fujian Key Laboratory for Plasma and Magnetic Resonance, Department of Aeronautics, School of Physics and Mechanical and Electrical Engineering, Xiamen University, Xiamen 361005 (China)

2012-07-01T23:59:59.000Z

156

Hydrogen storage properties of MgH2 processed by cold forging  

Science Journals Connector (OSTI)

Abstract In this paper the hydrogen storage properties of cold forged MgH2 were investigated. Magnesium hydride was processed in air by close-die drop forging at room temperature. The effects of processing parameters such as drop height of the hammer and number of forging passes were evaluated. The influence of final thickness of the forged samples was also studied. Cold forging of MgH2 resulted in pronounced grain refinement and enhanced hydrogen storage properties. Faster kinetics of hydrogen absorption and desorption were achieved by higher energy processing such as releasing the hammer from higher heights and increasing the number of applied forging passes. Results concerning sample thickness showed that MgO formation plays an important role to degrade both hydrogen capacity and kinetics. As a result of preferential surface oxidation of the forged MgH2, thicker samples showed better hydrogen storage properties.

Alexandre Augusto Cesario Asselli; Daniel Rodrigo Leiva; Gustavo Henrique Cozentino; Ricardo Floriano; Jacques Huot; Tomaz Toshimi Ishikawa; Walter José Botta

2014-01-01T23:59:59.000Z

157

Measurement of small photodestruction rates of cold, charged biomolecules in an ion trap  

Science Journals Connector (OSTI)

In this work, we demonstrate quantitative measurements of photodestruction rates of translationally cold, charged biomolecules. The long-term stable storage of the molecular ions in an ion trap under ultra-high vacuum conditions allows measurement of small rates and verification that rates are linear in photodestruction laser intensity. Measurements were performed on singly protonated molecules of the organic compound glycyrrhetinic acid (C30H46O4), dissociated by a continuous-wave UV laser (266 nm) using different intensities. The molecules were sympathetically cooled by simultaneously trapped laser-cooled barium ions to translational temperatures of below 150 mK. Destruction rates of less than 0.05 s?1 and a cross section of (1.1 ± 0.1) ? 10?17 cm2 have been determined. An extension to tunable UV laser sources would permit high-resolution dissociation spectroscopic studies on a wide variety of cold complex molecules.

D Offenberg; Ch Wellers; C B Zhang; B Roth; S Schiller

2009-01-01T23:59:59.000Z

158

Development of 2-Meter Soil Temperature Probes and Results of Temperature  

Open Energy Info (EERE)

Development of 2-Meter Soil Temperature Probes and Results of Temperature Development of 2-Meter Soil Temperature Probes and Results of Temperature Survey Conducted at Desert Peak, Nevada, USA Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Development of 2-Meter Soil Temperature Probes and Results of Temperature Survey Conducted at Desert Peak, Nevada, USA Abstract Temperature gradient drilling has historically been a key tool in the exploration for geothermal resources in the Great Basin, USA but regulatory, environmental, and accessibility issues, as well as the expense of drilling, are increasingly limiting its use. In cases where thermal groundwater is not overlain by near-surface cold aquifers, temperatures measured at a depth of 2-meters is an efficient method for mapping thermal anomalies at a high level of detail. This is useful for augmenting deeper

159

Bringing Fruit Flies in from the Cold  

NLE Websites -- All DOE Office Websites (Extended Search)

DOE Environmental Sustainability Award to Three from APS DOE Environmental Sustainability Award to Three from APS 2009 Chemistry Nobel to APS Users The First Experiment at the LCLS Linda Young Named to Head X-ray Science Division $7.9 M in ARRA Funding Brings New Instrumentation to the APS APS News Archives: 2012 | 2011 | 2010 | 2009 2008 | 2007 | 2006 | 2005 2004 | 2003 | 2002 | 2001 2000 Subscribe to APS News rss feed Bringing Fruit Flies in from the Cold DECEMBER 21, 2009 Bookmark and Share See the video of synchrotron x-ray visualization of ice formation in insects during lethal and non-lethal freezing at http://www.youtube.com/watch?v=m07CKU1XGdk Based on the University of Western Ontario press release Using a microscope the size of a football field, researchers from The University of Western Ontario, the University of Nevada-Las Vegas, Argonne

160

Color screening in cold quark matter  

E-Print Network (OSTI)

We compute color screening at finite quark chemical potentials cold quark matter at the one-loop level, comparing the normal, BCS paired U(1)_em, or Higgs, and a singlet phase with color-singlet condensate near the Fermi surface. The latter phase is computed in the example of two-color QCD with a color singlet diquark condensate. In contrast to the normal and Higgs phases, neither electric nor magnetic screening masses appear in the singlet phase. The absence of a magnetic mass, within a perturbative framework, is a consequence of proper treatment of gauge invariance. While at large momenta the gluon self-energies approach those in the normal phase, the medium contributions to the infrared region below a scale of the mass gap are substantially suppressed. Infrared gluons at low quark density in the singlet phase appear protected from medium effects, unless the quark-gluon vertices are significantly enhanced in the infrared.

Kojo, Toru

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

The Cold War is Over. What Now?  

DOE R&D Accomplishments (OSTI)

As you might imagine, the end of the Cold War has elicited an intense reexamination of the roles and missions of institutions such as the Los Alamos National Laboratory. During the past few years, the entire defense establishment has undergone substantial consolidation, with a concomitant decrease in support for research and development, including in areas such as materials. The defense industry is down-sizing at a rapid pace. Even universities have experienced significant funding cutbacks from the defense community. I view this as a profound time in history, bringing changes encompassing much more than just the defense world. In fact, support for science and technology is being reexamined across the board more completely than at any other time since the end of World War II.

Hecker, S. S.

1995-04-00T23:59:59.000Z

162

HERSCHEL REVEALS MASSIVE COLD CLUMPS IN NGC 7538  

SciTech Connect

We present the first overview of the Herschel observations of the nearby high-mass star-forming region NGC 7538, taken as part of the Herschel imaging study of OB young stellar objects (HOBYS) Key Programme. These PACS and SPIRE maps cover an approximate area of one square degree at five submillimeter and far-infrared wavebands. We have identified 780 dense sources and classified 224 of those. With the intention of investigating the existence of cold massive starless or class 0-like clumps that would have the potential to form intermediate- to high-mass stars, we further isolate 13 clumps as the most likely candidates for follow-up studies. These 13 clumps have masses in excess of 40 M{sub Sun} and temperatures below 15 K. They range in size from 0.4 pc to 2.5 pc and have densities between 3 Multiplication-Sign 10{sup 3} cm{sup -3} and 4 Multiplication-Sign 10{sup 4} cm{sup -3}. Spectral energy distributions are then used to characterize their energetics and evolutionary state through a luminosity-mass diagram. NGC 7538 has a highly filamentary structure, previously unseen in the dust continuum of existing submillimeter surveys. We report the most complete imaging to date of a large, evacuated ring of material in NGC 7538 which is bordered by many cool sources.

Fallscheer, C.; Di Francesco, J.; Sadavoy, S. [Department of Physics and Astronomy, University of Victoria, P.O. Box 355, STN CSC, Victoria, BC V8W 3P6 (Canada); Reid, M. A. [Department of Astronomy and Astrophysics, University of Toronto, Toronto, ON M5S 3H4 (Canada); Martin, P. G.; Nguyen-Luong, Q. [Canadian Institute for Theoretical Astrophysics, University of Toronto, Toronto, ON M5S 3H8 (Canada); Hill, T.; Hennemann, M.; Motte, F.; Men'shchikov, A.; Andre, Ph.; Konyves, V.; Sauvage, M. [Laboratoire AIM, CEA/DSM-CNRS-Universite Paris Diderot, IRFU/Service d'Astrophysique, Saclay, F-91191 Gif-sur-Yvette (France); Ward-Thompson, D.; Kirk, J. [Jeremiah Horrocks Institute, University of Central Lancashire, Preston, Lancashire, PR1 2HE (United Kingdom); Griffin, M. [School of Physics and Astronomy, Cardiff University, Queen's Buildings, The Parade, Cardiff CF24 3AA (United Kingdom); Rygl, K. L. J.; Benedettini, M. [INAF, Istituto di Astrofisica e Planetologia Spaziali, Area di Ricerca di Tor Vergata, via Fosso del Cavaliere 100, I-00133 Roma (Italy); Schneider, N. [Universite de Bordeaux, LAB, UMR 5804, F-33270, Floirac (France); Anderson, L. D. [Laboratoire d'Astrophysique de Marseille, CNRS/INSU, Universite de Provence, F-13388 Marseille Cedex 13 (France); and others

2013-08-20T23:59:59.000Z

163

DEVELOPMENT OF A HIGH PERFORMANCE COLD CLIMATE HEAT PUMP  

SciTech Connect

The primary goals of the proposed project were to develop, test, and evaluate a high performance and cost-effective vapor compression air-source heat pump for use in cold climate regions. Vapor compression heat pumps are a proven technology, and have been used for many years to meet heating requirements for buildings in residential, commercial, and industrial applications. However, in climate regions that experience very low outdoor ambient temperatures both the heating capacity and coefficient of performance (COP) of traditional air-source vapor compression heat pumps drops dramatically with a decrease in the outdoor air temperature. The efficiency of heat pumping equipment has improved substantially over the past 20 years; however, the efficiencies of the highest rated equipment on the market are approaching practical limits that cannot be surpassed without modifications to the basic cycle and possibly the use of additional hardware. In this report, three technologies to improve the efficiency of vapor compression systems are described. These are a) vapor injected compression, b) oil flooded compression and c) hybrid flow control of the evaporator. Compressor prototypes for both, oil flooded and vapor injected compression were developed by Emerson Climate Technologies. For the oil flooded compressor, the oil injection port location was optimized and an internal oil separator was added using several design iterations. After initial testing at Emerson Climate Technologies, further testing was done at Purdue University, and compressor models were developed. These models were then integrated into a system model to determine the achievable improvement of seasonal energy efficiency (SEER) for Minneapolis (Minnesota) climate. For the oil flooded compression, a 34% improvement in seasonal energy efficiency was found while a 21% improvement in seasonal energy efficiency ratio was found for the vapor injected compression. It was found that one benefit of both tested compression technologies is a lower discharge temperature, which allows for continued operation at lower ambient temperatures. A bin analysis of the vapor injected prototype cold climate heat pump predicts a 6% improvement in HSPF for Minneapolis. This improvement is mainly a result of the increased capacity of the system for active vapor injection. For the oil flooded system, a slightly larger performance improvement is predicted, in this case mostly caused by an increase in heating COP. Based on an economic analysis of these results, the maximum additional cost of the system changes, for the Minneapolis location, are $430 for the vapor injected system and $391 for the oil flooded system. These estimates assume that a 3-year simple payback period is accepted by the customer. For the hybrid flow control of evaporators, a new type of balancing valve was developed together with Emerson Climate technologies to reduce the cost of the control scheme. In contrast to conventional stepper motor valves, this valve requires less cables and can be driven by a cheaper output circuit on the control board. The correct valve size was determined in a dedicated test stand in several design iterations. The performance benefits of the hybrid control of the evaporator coil were determined for clean coil conditions as well as with partial blockage of the air inlet grille and under frosting conditions. For clean coil conditions, the benefits in terms of COP and capacity are negligible. However, significant benefits were noted for severely air-maldistributed operating conditions. For the H2-test, the maximum COP improvement of 17% along with a capacity improvement of nearly 40% was observed. Overall, the hybrid control scheme leads to a significant amount of performance improvement, if the air inlet conditions to the evaporator are maldistributed.

Horton, W. Travis [Purdue University] [Purdue University; Groll, Eckhard A. [Purdue University] [Purdue University; Braun, James E. [Purdue University] [Purdue University

2014-06-01T23:59:59.000Z

164

Two Techniques to Produce Cold Antihydrogen A thesis presented  

E-Print Network (OSTI)

. The second H production method utilizes a two step laser- controlled charge exchange to produce antihydrogen.2 Cold Antihydrogen Production Methods . . . . . . . . . . . . . . . . 9 1.2.1 Three-Body Recombination to the spectroscopic comparison of antihydrogen and hydrogen -- a comparison that will require atoms both cold enough

Gabrielse, Gerald

165

Ground-Source Heat Pumps in Cold Climates  

E-Print Network (OSTI)

Ground-Source Heat Pumps in Cold Climates The Current State of the Alaska Industry, a Review-Source Heat Pumps in Cold Climates The Current State of the Alaska Industry, a Review of the Literature and contributions from individuals and organizations involved in ground-source heat pump installation around Alaska

Wagner, Diane

166

Independent Oversight Review, Hanford K Basin and Cold Vacuum Drying  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

K Basin and Cold Vacuum K Basin and Cold Vacuum Drying Facility - August 2012 Independent Oversight Review, Hanford K Basin and Cold Vacuum Drying Facility - August 2012 August 2012 Review of Hanford K Basin and Cold Vacuum Drying Facility Found Fuel Multi-Canister Overpack Operations The purpose of this independent oversight review by the U.S. Department of Energy (DOE) Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security (HSS) was to observe the operations associated with processing a Multi-Canister Overpack (MCO) of "found fuel" (small quantities of spent fuel discovered during cleanup of the reactor burial grounds) at the Cold Vacuum Drying Facility (CVDF). The found fuel MCO was transported from the K West Basin on the Hanford

167

Independent Oversight Review, Hanford K Basin and Cold Vacuum Drying  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Hanford K Basin and Cold Vacuum Hanford K Basin and Cold Vacuum Drying Facility - August 2012 Independent Oversight Review, Hanford K Basin and Cold Vacuum Drying Facility - August 2012 August 2012 Review of Hanford K Basin and Cold Vacuum Drying Facility Found Fuel Multi-Canister Overpack Operations The purpose of this independent oversight review by the U.S. Department of Energy (DOE) Office of Enforcement and Oversight (Independent Oversight), within the Office of Health, Safety and Security (HSS) was to observe the operations associated with processing a Multi-Canister Overpack (MCO) of "found fuel" (small quantities of spent fuel discovered during cleanup of the reactor burial grounds) at the Cold Vacuum Drying Facility (CVDF). The found fuel MCO was transported from the K West Basin on the Hanford

168

Brrrrr. It's Cold In There! | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Brrrrr. It's Cold In There! Brrrrr. It's Cold In There! Brrrrr. It's Cold In There! March 2, 2010 - 11:27am Addthis Eric Barendsen Energy Technology Program Specialist, Office of Energy Efficiency and Renewable Energy This winter has seemed like an especially long one to me. I'm ready to wear shorts and enjoy nice, long summer days. Alas, the reality is that it will probably be cold for at least another month here in Washington, D.C. All that cold air robs not only our jacketed bodies of warmth, but it also carries heat away from the places where we want it most this time of year: our homes, apartments, and businesses. All that heat loss costs money. I've been in friends' houses that just never seem to stay warm, even when their furnace kicks on every 15 or 20 minutes. I can just hear the swishing sound of them flushing money down the

169

Acute cold stress improved the transcription of pro-inflammatory cytokines of Chinese soft-shelled turtle against Aeromonas hydrophila  

Science Journals Connector (OSTI)

Abstract Chinese soft-shelled turtle, Pelodiscus sinensis, is widely cultured in East and Southeast Asian countries. It frequently encounters the stress of abrupt temperature change, which leads to mass death in most cases. However, the mechanism underlying the stress-elicited death remains unknown. We have suspected that the stress impaired the immune function of Chinese soft-shelled turtle, which could result in the mass death, as we noticed that there was a clinical syndrome of infection in dead turtles. To test our hypothesis, we first performed bioinformatic annotation of several pro-inflammatory molecules (IL-1?, TNF?, IL-6, IL-12?) of Chinese soft-shelled turtle. Then, we treated the turtles in six groups, injected with Aeromonas hydrophila before acute cold stress (25?°C) and controls, after acute cold stress (15?°C) and controls as well as after the temperature was restored to 25?°C and controls, respectively. Subsequently, real-time PCR for several pro-inflammatory cytokines (IL-1?, TNF?, IL-6, IL-12?, IL-8 and IFN?) was performed to assess the turtle immune function in spleen and intestine, 24 hours after the injection. We found that the mRNA expression levels of the immune molecules were all enhanced after acute cold stress. This change disappeared when the temperature was restored back to 25?°C. Our results suggest that abrupt temperature drop did not suppress the immune function of Chinese soft-shelled turtle in response to germ challenge after abrupt temperature drop. In contrast, it may even increase the expression of various cytokines at least, within a short time after acute cold stress.

Zuobing Zhang; Bojian Chen; Lin Yuan; Cuijuan Niu

2014-01-01T23:59:59.000Z

170

g:\\self care\\cold sore throat cough allergy 8/08 SELF CARE CHECK LIST FOR COLD, SORE  

E-Print Network (OSTI)

g:\\self care\\cold sore throat cough allergy 8/08 SELF CARE CHECK LIST FOR COLD, SORE THROAT, COUGH worse? NO YES Do you have chest pain, wheezing or any difficulty with breathing? NO YES Are you coughing, hacky cough? Expectorant (guaifenesin/Robitussin) Cough suppressant (dextromethorphan/ DM) Do you have

Suzuki, Masatsugu

171

Insects and low temperatures: from molecular biology to distributions and abundance  

Science Journals Connector (OSTI)

...exposure temperature. In addition, the chill coma (cold torpor) temperature was over...the same diur- nal thermoperiod, the chill coma temperature decreased 856 J. S...Raymond, J. A. & DeVries, A. L. 1977 Absorption inhibition as a mechanism of freezing...

2002-01-01T23:59:59.000Z

172

Changes in daily temperature and precipitation extremes in central and south Asia  

E-Print Network (OSTI)

Changes in daily temperature and precipitation extremes in central and south Asia A. M. G. Klein in indices of climate extremes are studied on the basis of daily series of temperature and precipitation, the indices of temperature extremes indicate warming of both the cold tail and the warm tail

Klein Tank, Albert

173

THE WIDOM-LARSEN THEORY OF COLD FUSION by Martin Bier  

E-Print Network (OSTI)

THE WIDOM-LARSEN THEORY OF COLD FUSION by Martin Bier January 2012 is currently the subject of much debate in the cold fusion community. Perspectives of physicists from outside the cold fusion field appear to not be part

Bier, Martin

174

OTEC Cold Water Pipe-Platform Sub-System Dynamic Interaction...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

OTEC Cold Water Pipe-Platform Sub-System Dynamic Interaction Validation (OPPSDIV) OTEC Cold Water Pipe-Platform Sub-System Dynamic Interaction Validation (OPPSDIV) OTEC Cold Water...

175

The pinch of cold ions from recycling in the tokamak edge pedestal  

SciTech Connect

We apply the ''natural fueling mechanism'' [W. Wan, S. E. Parker, Y. Chen, and F. W. Perkins, Phys. Plasmas 17, 040701 (2010)] to the edge pedestal. The natural fueling mechanism is where cold ions naturally pinch radially inward for a heat-flux dominated plasma. It is shown from neoclassical-neutral transport coupled simulations that the recycling neutrals and the associated source ions are colder than the main ions in the edge pedestal. These recycling source ions will pinch radially inward due to microturbulence. Gyrokinetic turbulence simulations indicate that near the top of the pedestal, the pinch velocity of the recycling source ions is much higher than the main ion outgoing flow velocity. The turbulent pinch of the recycling source ions may play a role in the edge pedestal transport and dynamics. The cold ion temperature significantly enhances the pinch velocity of the recycling source ions near to the pedestal top. Neoclassical calculations show a cold ion pinch in the pedestal as well.

Wan Weigang; Parker, Scott E.; Chen Yang [Department of Physics, University of Colorado, Boulder, Colorado 80309 (United States); Park, Gun-Young [National Fusion Research Institute, 113 Gwahangno, Yuseong-Gu, DaeJeon 305-333 (Korea, Republic of); Chang, Choong-Seock [Courant Institute of Mathematical Sciences, New York University, New York, New York 10003 (United States); Stotler, Daren [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

2011-05-15T23:59:59.000Z

176

Slow and fast light dynamics in a chiral cold and hot atomic medium  

E-Print Network (OSTI)

We study Chiral Based Electromagnetically Induced Transparency (CBEIT) of a light pulse and its associated subluminal and superluminal behavior through a cold and a hot medium of 4-level \\textit{double-Lambda type} atomic system. The dynamical behavior of this chiral based system is temperature dependent. The magnetic field based chirality and dispersion is always opposite as compared with the electric field ones. Contrastingly, the response of the chiral effect along with the incoherence Doppler broadening mechanism enhances the superluminal behavior as compared with its traditional degrading effect. Nevertheless, the intensity of a coupled microwave field destroys the coherence of the medium and degrade superluminality and subluminality of the sysmtem. The undistorted retrieved pulse from a hot chiral medium delays by $896 ns$ than from a cold chiral medium under same set of parameters. Nevertheless, it advances by $-31n s$ in the cold chiral medium when a suitably different spectroscopic parameters are selected. The corresponding group index of the medium and the time delay/advance, are studied and analyzed explicitly [Note: A revise version is under preparation

Bakht A Bacha; Fazal Ghafoor; Rashid G Nazmidinov

2014-01-19T23:59:59.000Z

177

Investigation of power battery thermal management by using mini-channel cold plate  

Science Journals Connector (OSTI)

Abstract In order to guarantee the safety and extend the cycle life of Li-ion power batteries within electric vehicles, a mini-channel cold plate-based battery thermal management system is designed to cool a rectangular Li-ion battery. A three-dimensional thermal model of the cooling system was established and the effects of number of channels, flow direction, inlet mass flow rate and ambient temperature on temperature rise and distribution of the battery during the discharge process were investigated. The results suggest that the maximum temperature of the battery decreases with increases in the number of channels and inlet mass flow rate. The effect of flow direction on cooling performance was smaller after mass flow rate increased. The cooling performance improved with the increase of inlet mass flow rate but the increasing trend became smaller, and the mass flow rate as 5 × 10?4 kg s?1 was optimal. The simulation results will be useful for the design of mini-channel cold plate-based battery thermal management system.

Yutao Huo; Zhonghao Rao; Xinjian Liu; Jiateng Zhao

2015-01-01T23:59:59.000Z

178

Physics design of a cold neutron source for KIPT neutron source facility.  

SciTech Connect

Argonne National Laboratory (ANL) of USA and Kharkov Institute of Physics and Technology (KIPT) of Ukraine have been collaborating on the conceptual design development of a neutron source facility. It is based on the use of an electron accelerator driven subcritical (ADS) facility with low enriched uranium fuel, using the existing electron accelerators at KIPT of Ukraine [1]. The neutron source of the subcritical assembly is generated from the interaction of 100-KW electron beam, which has a uniform spatial distribution and the electron energy in the range of 100 to 200 MeV, with a natural uranium target [2]. The main functions of the facility are the production of medical isotopes and the support of the Ukraine nuclear power industry. Neutron beam experiments and material studies are also included. Over the past two-three decades, structures with characteristic lengths of 100 {angstrom} and correspondingly smaller vibrational energies have become increasingly important for both science and technology [3]. The characteristic dimensions of the microstructures can be well matched by neutrons with longer vibrational wavelength and lower energy. In the accelerator-driven subcritical facility, most of the neutrons are generated from fission reactions with energy in the MeV range. They are slowed down to the meV energy range through scattering reactions in the moderator and reflector materials. However, the fraction of neutrons with energies less than 5 meV in a normal moderator spectrum is very low because of up-scattering caused by the thermal motion of moderator or reflector molecules. In order to obtain neutrons with energy less than 5 meV, cryogenically cooled moderators 'cold neutron sources' should be used to slow down the neutrons. These cold moderators shift the neutron energy spectrum down because the thermal motion of moderator molecules as well as the up-scattering is very small, which provides large gains in intensity of low energy neutrons, E < 5 meV. The accelerator driven subcritical facility is designed with a provision to add a cryogenically cooled moderator system. This cold neutron source could provide the neutrons beams with lower energy, which could be utilized in scattering experiment and material structures analysis. This study describes the performed physics analyses to define and characterize the cold neutron source of the KIPT neutron source facility. The cold neutron source is designed to optimize the cold neutron brightness to the experimental instruments outside the radial heavy concrete shield of the facility. Liquid hydrogen or solid methane with 20 K temperature is used as a cold moderator. Monte Carlo computer code MCNPX [4], with ENDF/B-VI nuclear data libraries, is utilized to calculate the cold neutron source performance and estimate the nuclear heat load to the cold moderator. The surface source generation capability of MCNPX code has been used to provide the possibility of analyzing different design configurations and perform design optimization analyses with reasonable computer resources. Several design configurations were analyzed and their performance were characterized and optimized.

Zhong, Z.; Gohar, Y.; Kellogg, R.; Nuclear Engineering Division

2009-02-17T23:59:59.000Z

179

Magnetic filter apparatus and method for generating cold plasma in semicoductor processing  

DOE Patents (OSTI)

Disclosed herein is a system and method for providing a plasma flood having a low electron temperature to a semiconductor target region during an ion implantation process. The plasma generator providing the plasma is coupled to a magnetic filter which allows ions and low energy electrons to pass therethrough while retaining captive the primary or high energy electrons. The ions and low energy electrons form a "cold plasma" which is diffused in the region of the process surface while the ion implantation process takes place.

Vella, Michael C. (San Leandro, CA)

1996-01-01T23:59:59.000Z

180

Magnetic filter apparatus and method for generating cold plasma in semiconductor processing  

DOE Patents (OSTI)

Disclosed herein is a system and method for providing a plasma flood having a low electron temperature to a semiconductor target region during an ion implantation process. The plasma generator providing the plasma is coupled to a magnetic filter which allows ions and low energy electrons to pass therethrough while retaining captive the primary or high energy electrons. The ions and low energy electrons form a ``cold plasma`` which is diffused in the region of the process surface while the ion implantation process takes place. 15 figs.

Vella, M.C.

1996-08-13T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Micro-canonical thermodynamics: Why does heat flow from hot to cold  

E-Print Network (OSTI)

We consider two weakly coupled Hamiltonian dynamical systems in the micro-canonical ensemble. We describe a stochastic model for the energy-transfer between two systems initially at different micro-canonical temperatures. Fluctuations in energy observables are shown to be the underlying source of heat-transfer (dissipation). As a result, on average, heat flows from hot to cold. Like in Evans et al. (Phys.\\ Rev.\\ Lett.) [71], 2401 (1993), we obtain a universal law of violation of the 2nd law of thermodynamics.

Rugh, Hans Henrik

2012-01-01T23:59:59.000Z

182

E-Print Network 3.0 - aluminum cold rolled Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

beamlines consist of... ambient; 1 cold, uncoupled, poisoned (best time resolution); 2 cold, coupled, unpoisoned ... Source: Controlled Fusion Atomic Data Center (CFADC)...

183

Study of integrated metal hydrides heat pump and cascade utilization of liquefied natural gas cold energy recovery system  

Science Journals Connector (OSTI)

The traditional cold energy utilization of the liquefied natural gas system needs a higher temperature heat source to improve exergy efficiency, which barricades the application of the common low quality thermal energy. The adoption of a metal hydride heat pump system powered by low quality energy could provide the necessary high temperature heat and reduce the overall energy consumption. Thus, an LNG cold energy recovery system integrating metal hydride heat pump was proposed, and the exergy analysis method was applied to study the case. The performance of the proposed integration system was evaluated. Moreover, some key factors were also theoretically investigated about their influences on the system performance. According to the results of the analysis, some optimization directions of the integrated system were also pointed out.

Xiangyu Meng; Feifei Bai; Fusheng Yang; Zewei Bao; Zaoxiao Zhang

2010-01-01T23:59:59.000Z

184

High Flux Isotope Reactor cold neutron source reference design concept  

SciTech Connect

In February 1995, Oak Ridge National Laboratory`s (ORNL`s) deputy director formed a group to examine the need for upgrades to the High Flux Isotope Reactor (HFIR) system in light of the cancellation of the Advanced neutron Source Project. One of the major findings of this study was that there was an immediate need for the installation of a cold neutron source facility in the HFIR complex. In May 1995, a team was formed to examine the feasibility of retrofitting a liquid hydrogen (LH{sub 2}) cold source facility into an existing HFIR beam tube. The results of this feasibility study indicated that the most practical location for such a cold source was the HB-4 beam tube. This location provides a potential flux environment higher than the Institut Laue-Langevin (ILL) vertical cold source and maximizes the space available for a future cold neutron guide hall expansion. It was determined that this cold neutron beam would be comparable, in cold neutron brightness, to the best facilities in the world, and a decision was made to complete a preconceptual design study with the intention of proceeding with an activity to install a working LH{sub 2} cold source in the HFIR HB-4 beam tube. During the development of the reference design the liquid hydrogen concept was changed to a supercritical hydrogen system for a number of reasons. This report documents the reference supercritical hydrogen design and its performance. The cold source project has been divided into four phases: (1) preconceptual, (2) conceptual design and testing, (3) detailed design and procurement, and (4) installation and operation. This report marks the conclusion of the conceptual design phase and establishes the baseline reference concept.

Selby, D.L.; Lucas, A.T.; Hyman, C.R. [and others

1998-05-01T23:59:59.000Z

185

Lipocalin 2 regulation by thermal stresses: Protective role of Lcn2/NGAL against cold and heat stresses  

SciTech Connect

Environmental temperature variations are the most common stresses experienced by a wide range of organisms. Lipocalin 2 (Lcn2/NGAL) is expressed in various normal and pathologic conditions. However, its precise functions have not been fully determined. Here we report the induction of Lcn2 by thermal stresses in vivo, and its role following exposure to cold and heat stresses in vitro. Induction of Lcn2 in liver, heart and kidney was detected by RT-PCR, Western blot and immunohistochemistry following exposure of mice to heat and cold stresses. When CHO and HEK293T cells overexpressing NGAL were exposed to cold stress, cell proliferation was higher compared to controls. Down-regulatrion of NGAL by siRNA in A549 cells resulted in less proliferation when exposed to cold stress compared to control cells. The number of apoptotic cells and expression of pro-apoptotic proteins were lower in the NGAL overexpressing CHO and HEK293T cells, but were higher in the siRNA-transfected A549 cells compared to controls, indicating that NGAL protects cells against cold stress. Following exposure of the cells to heat stress, ectopic expression of NGAL protected cells while addition of exogenous recombinant NGAL to the cell culture medium exacerbated the toxicity of heat stress specially when there was low or no endogenous expression of NGAL. It had a dual effect on apoptosis following heat stress. NGAL also increased the expression of HO-1. Lcn2/NGAL may have the potential to improve cell proliferation and preservation particularly to prevent cold ischemia injury of transplanted organs or for treatment of some cancers by hyperthermia.

Roudkenar, Mehryar Habibi, E-mail: roudkenar@ibto.ir [Research Center, Iranian Blood Transfusion Organization, Tehran (Iran, Islamic Republic of); Halabian, Raheleh [Research Center, Iranian Blood Transfusion Organization, Tehran (Iran, Islamic Republic of)] [Research Center, Iranian Blood Transfusion Organization, Tehran (Iran, Islamic Republic of); Roushandeh, Amaneh Mohammadi [Department of Anatomy, Faculty of Medicine, Medical University of Tabriz, Tabriz (Iran, Islamic Republic of)] [Department of Anatomy, Faculty of Medicine, Medical University of Tabriz, Tabriz (Iran, Islamic Republic of); Nourani, Mohammad Reza [Chemical Injury Research Center, Baqiyatallah Medical Science University, Tehran (Iran, Islamic Republic of)] [Chemical Injury Research Center, Baqiyatallah Medical Science University, Tehran (Iran, Islamic Republic of); Masroori, Nasser [Research Center, Iranian Blood Transfusion Organization, Tehran (Iran, Islamic Republic of)] [Research Center, Iranian Blood Transfusion Organization, Tehran (Iran, Islamic Republic of); Ebrahimi, Majid [Research Center, Iranian Blood Transfusion Organization, Tehran (Iran, Islamic Republic of) [Research Center, Iranian Blood Transfusion Organization, Tehran (Iran, Islamic Republic of); Chemical Injury Research Center, Baqiyatallah Medical Science University, Tehran (Iran, Islamic Republic of); Nikogoftar, Mahin; Rouhbakhsh, Mehdi; Bahmani, Parisa [Research Center, Iranian Blood Transfusion Organization, Tehran (Iran, Islamic Republic of)] [Research Center, Iranian Blood Transfusion Organization, Tehran (Iran, Islamic Republic of); Najafabadi, Ali Jahanian [Department of Molecular Biology, Pasteur Institute of Iran, Tehran (Iran, Islamic Republic of)] [Department of Molecular Biology, Pasteur Institute of Iran, Tehran (Iran, Islamic Republic of); Shokrgozar, Mohammad Ali [National Cell Bank of Iran, Pasteur institute of Iran, Tehran (Iran, Islamic Republic of)] [National Cell Bank of Iran, Pasteur institute of Iran, Tehran (Iran, Islamic Republic of)

2009-11-01T23:59:59.000Z

186

Color screening in cold quark matter  

E-Print Network (OSTI)

We compute---at finite quark chemical potentials---the color screening of cold quark matter at the one-loop level, comparing the normal, BCS-paired U(1)em (or Higgs) phase and a singlet phase with color-singlet condensate near the Fermi surface. The latter phase is computed using the example of two-color QCD with a color-singlet diquark condensate. In contrast to the normal and Higgs phases, neither electric nor magnetic screening masses appear in the singlet phase. The absence of a magnetic mass, within a perturbative framework, is a consequence of the proper treatment of gauge invariance. While at large momenta the gluon self-energies approach those in the normal phase, the medium contributions to the infrared region below a scale of the mass gap are substantially suppressed. Infrared gluons at low quark density in the singlet phase appear protected from medium effects, unless the quark-gluon vertices are significantly enhanced in the infrared.

Toru Kojo; Gordon Baym

2014-04-04T23:59:59.000Z

187

ROSEE cleans up after the Cold War  

SciTech Connect

This article describes a robot named ROSEE, designed by engineers at the DOE's Hanford site to minimize the risk of radiation exposure to workers cleaning up to residue left by America's manufacture of nuclear weapons. ROSEE is the acronym for Remotely Operated Sediment Extraction Equipment, a robot designed to vacuum sediment and debris from a nuclear fuels storage pool at the Department of Energy's Hanford nuclear waste storage site in Richland, Wash. The task facing ROSEE involves cleaning out the N basin at Hanford. Work is schedules to begin before the fall. The basin houses nuclear fuel refined during 24 years of the Cold War era. This water-filled structure is 24 feet deep, 87 feet long, and 56 feet wide, approximately three times larger than an Olympic-size swimming pool. Nuclear fuel was contained in honeycomb cells mounted 1 inch from the bottom of the pool. The cells rise 10 feet from the bottom of the basin, and each cell is 21 inches deep and 14 inches wide. The cells now hold radioactive residues that must be removed for final safe disposal.

Valenti, M.

1994-07-01T23:59:59.000Z

188

Performance House -- A Cold Climate Challenge Home  

SciTech Connect

Working with builder partners on a test homes allows for vetting of whole-house building strategies to eliminate any potential unintended consequences prior to implementing these solution packages on a production scale. To support this research, CARB partnered with Preferred Builders Inc. on a high-performance test home in Old Greenwich, CT. The philosophy and science behind the 2,700 ft2 'Performance House' was based on the premise that homes should be safe, healthy, comfortable, durable, efficient, and adapt with the homeowners. The technologies and strategies used in the 'Performance House' were not cutting-edge, but simply 'best practices practiced'. The focus was on simplicity in construction, maintenance, and operation. When seeking a 30% source energy savings targets over a comparable 2009 IECC code-built home in the cold climate zone, nearly all components of a home must be optimized. Careful planning and design are critical. To help builders and architects seeking to match the performance of this home, a step-by-step guide through the building shell components of DOE's Challenge Home are provided in a pictorial story book. The end result was a DOE Challenge Home that achieved a HERS Index Score of 20 (43 without PV, the minimum target was 55 for compliance). This home was also awarded the 2012 HOBI for Best Green Energy Efficient Home from the Home Builders & Remodelers Association of Connecticut.

Puttagunta, S.; Grab, J.; Williamson, J.

2013-08-01T23:59:59.000Z

189

Preliminary Market Assessment for Cold Climate Heat Pumps  

SciTech Connect

Cold climate heat pump (HP) technology is relevant to a substantial portion of the U.S. population, especially with more than one-third of U.S. housing stock concentrated in colder regions of the country and another 31% in the mixed-humid climate region. Specifically, it is estimated that in 2010 almost 1.37 million heating equipment units were shipped to the cold/very cold climate regions and that 1.41 million were shipped to the nation s mixed-humid region. On a national level, the trend in the last decade has indicated that shipments of gas furnaces have grown at a slower rate than HPs. This indicates a potential opportunity for the cold climate HP, a technology that may be initially slow to penetrate its potential market because of the less expensive operating and first costs of gas furnaces. Anticipated implementation of regional standards could also negatively affect gas furnace shipments, especially with the higher initial cost for more efficient gas furnaces. However, as of 2011, the fact that there are more than 500 gas furnace product models that already achieve the expected efficiency standard indicates that satisfying the regional standard will be a challenge but not an obstacle. A look at the heating fuel and equipment currently being used in the housing stock provides an insight into the competing equipment that cold climate HPs hope to replace. The primary target market for the cold climate HP is the 2.6 million U.S. homes using electric furnaces and HPs in the cold/very cold region. It is estimated that 4.75% of these homeowners either replace or buy new heating equipment in a given year. Accordingly, the project team could infer that the cold climate HP primary market is composed of 123,500 replacements of electric furnaces and conventional air-to-air HPs annually. A secondary housing market for the cold climate HP comprises homes in the mixed-humid region of the country that are using electric furnaces. Homes using gas furnaces across both the cold/very cold and mixed-humid regions represent another secondary market for the cold climate HP. The cold climate HP could also target as a secondary market homes across both the cold/very cold and mixed-humid regions that use propane and fuel oil as their primary heating fuel. The combined total of homes in these three secondary markets is 46 million, and we can also infer that about 2.2 million of these systems are replaced annually. When comparing heating equipment stock in 2001, 2005, and 2009 in the cold/very cold region of the country, it appears that gas furnaces are slowly losing market share and that electric furnaces and HPs are making gains. The fact that electricity-dependent heating equipment is rising in preference among homeowners in the colder regions of the country shows that future penetration of the cold climate HP holds promise. Accordingly, cold climate HP technology could achieve an attractive position, given certain favorable market conditions such as reaching a competitive cost point, strong federal incentives, a consistent level of reliable performance, and a product rollout by a credible market leader. The project team relied on payback analysis to estimate the potential market penetration for the cold climate HP in each of its primary and secondary markets. In this analysis, we assumed a $250 price premium for the cold climate HP over the baseline HP. Electricity and gas prices and emissions were based on the 2010 Buildings Energy Data Book. The average heating load was calculated as 25.2 MMBTU per year in the cold/very cold and mixed-humid regions of the United States. Typical installed costs were obtained from the technical document supporting the U.S. Department of Energy rulemaking. The analysis showed that the cold climate HP will have a 2.2 year payback period when replacing an existing electric HP in the colder regions of the nation. The cold climate HP will have a 6 year payback period when replacing gas furnaces in the same climate regions. Accordingly, we estimated that the cold climate HP will have a penetration ratio rangin

Sikes, Karen [Sentech, Inc.; Khowailed, Gannate [Sentech, Inc.; Abdelaziz, Omar [ORNL

2011-09-01T23:59:59.000Z

190

Shutting the Door on Cold Weather | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Shutting the Door on Cold Weather Shutting the Door on Cold Weather Shutting the Door on Cold Weather February 8, 2011 - 11:52am Addthis Andrea Spikes Communicator at DOE's National Renewable Energy Laboratory A few months ago, the front door of my condominium cracked. One too many careless slams cracked the wood right at the bolt, which made it difficult to close, let in cold air, and made it easy to break in. Not a good situation, especially since winter was about to begin! Fortunately, my storm door was working just fine. Since I live in a condo complex, my decision on how to choose a new door had a bit of added complexity. I needed to consider things such as: What type of door would be accepted by the condo association board if I couldn't find a match to the old one Which type of door would be best for my needs

191

Tracing And Quantifying Magmatic Carbon Discharge In Cold Groundwaters-  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » Tracing And Quantifying Magmatic Carbon Discharge In Cold Groundwaters- Lessons Learned From Mammoth Mountain, Usa Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Tracing And Quantifying Magmatic Carbon Discharge In Cold Groundwaters- Lessons Learned From Mammoth Mountain, Usa Details Activities (3) Areas (1) Regions (0) Abstract: A major campaign to quantify the magmatic carbon discharge in cold groundwaters around Mammoth Mountain volcano in eastern California was carried out from 1996 to 1999. The total water flow from all sampled cold springs was >=1.8_107 m3/yr draining an area that receives an estimated

192

EM's December Newsletter Recaps Cold War Cleanup Accomplishments in 2013  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EM's December Newsletter Recaps Cold War Cleanup Accomplishments EM's December Newsletter Recaps Cold War Cleanup Accomplishments in 2013 EM's December Newsletter Recaps Cold War Cleanup Accomplishments in 2013 December 24, 2013 - 12:00pm Addthis WASHINGTON, D.C. - On Dec. 19, EM completed demolition of the 4.8 million-square-foot Building K-25 at Oak Ridge, a milestone that capped a busy and successful 2013 for the Cold War cleanup program. The demolition was one of EM's most significant achievements this year, and it is captured in this newsletter issue along with dozens of other notable accomplishments across the EM complex. Read about EM's productive year, including cleanup of buildings and waste sites along the Columbia River in Washington state, progress in the disposition of transuranic waste at Idaho and other sites and preparations for a major demolition at the West Valley

193

Modeling Cold Start in a Polymer-Electrolyte Fuel Cell  

E-Print Network (OSTI)

Boundary conditions used for fuel—cell simulations. 3.12to the Problem of Cold Start 1.1 Polymer—Electrolyte Fuelin Polymer Electrolyte Fuel Cells — II. Parametric Study,”

Balliet, Ryan

2010-01-01T23:59:59.000Z

194

Cold neutron facility for prompt gamma-neutron activation analysis  

Science Journals Connector (OSTI)

The restart of the recently upgraded research reactor in Budapest is foreseen at the end of this year. A number of fast, thermal and cold neutron beams will serve for research, industrial and educational activiti...

G. Molnár; ZS. Révay; Á. Veres; A. Simonits…

1993-01-01T23:59:59.000Z

195

INFRARED THERMAL IMAGING OF AUTOMOBILES: Identification of Cold Start Vehicles  

E-Print Network (OSTI)

INFRARED THERMAL IMAGING OF AUTOMOBILES: Identification of Cold Start Vehicles Angela M. Monateri at the infrared image from an automobile. ·The camera was set up with a FEAT 3000 unit to compare emissions vs

Denver, University of

196

High-Performance Commercial Cold Climate Heat Pump | Department...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

cold climate commercial heat pump system. The system improves on state-of-the-art heat pumps, which can degrade by up to 60% in capacity and 50% in system coefficient of...

197

Cold and Flu Prevention - HPMC Occupational Health Services  

NLE Websites -- All DOE Office Websites (Extended Search)

Awareness Cold and Flu Prevention Hand Washing Healthy Sleep Heat Stress Radon Signs of a Heart Attack Signs of a Stroke Distracted Driving Coping with Stress & Change Skin Cancer...

198

Cold-Start Performance and Emissions Behavior of Alcohol Fuels...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Emissions Behavior of Alcohol Fuels in an SIDI Engine Using Transient Hardware-In-Loop Test Meth Cold-Start Performance and Emissions Behavior of Alcohol Fuels in an SIDI Engine...

199

Cold Vacuum Drying (CVD) Facility Diesel Generator Fire Protection  

SciTech Connect

This Acceptance Test Procedure (ATP) has been prepared to demonstrate that the Fire Protection and Detection System installed by Project W-441 (Cold Vacuum Drying Facility and Diesel Generator Building) functions as required by project specifications.

SINGH, G.

2000-04-25T23:59:59.000Z

200

The Chemistry of Cold Interstellar Cloud Cores Eric Herbst  

E-Print Network (OSTI)

Chapter 1 The Chemistry of Cold Interstellar Cloud Cores Eric Herbst Department of Physics and Their Chemistry . . . . . . . . . . . . . 4 1.2 Gas-Phase Chemical Processes . . . . . . . . . . . . . . . . . . . . . . . . . . 13 1.2.4 Organic Chemistry . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 1.2.5 Negative

Millar, Tom

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

Microsoft PowerPoint - IPRC 2012 Cold Finger Separation [9]  

NLE Websites -- All DOE Office Websites (Extended Search)

Fission Fission Product Separation by Cold Finger Crystal Growth Fission Product Separation by Cold Finger Crystal Growth Joshua R. Versey* and Supathorn Phongikaroon University of Idaho, Idaho Falls Center for Advanced Energy Studies *vers4197@vandals.uidaho.edu Michael F. Simpson Idaho National Laboratory Joshua R. Versey* and Supathorn Phongikaroon University of Idaho, Idaho Falls Center for Advanced Energy Studies *vers4197@vandals.uidaho.edu Michael F. Simpson Idaho National Laboratory 2012 IPRC Fontana, Wisconsin 2012 IPRC Fontana, Wisconsin Outline * Background * Motivation & Goals * Cold Finger Theory * Cold Finger Design * Experimental Program * Results & Discussion * Summary & Future Work 2 Background Advanced Pyrochemical Technology Concept 3 Background 4 Advanced Pyrochemical Technology Concept Background 5 Oxide Reduction Process Cathode

202

Studying coherence in ultra-cold atomic gases  

E-Print Network (OSTI)

This thesis will discuss the study of coherence properties of ultra-cold atomic gases. The atomic systems investigated include a thermal cloud of atoms, a Bose-Einstein condensate and a fermion pair condensate. In each ...

Miller, Daniel E. (Daniel Edward)

2007-01-01T23:59:59.000Z

203

Interannual and Interdecadal Variability of the Number of Cold Days in Hong Kong and Their Relationship with Large-scale Circulation  

Science Journals Connector (OSTI)

During the past decade (2004/05 to 2013/14), the number of cold days in Hong Kong (NCD), as a proxy of the temperature of southern China, appeared to have increased from the historical minimum, in contrast to a remarkable decline in the entire ...

Hoffman H. N. Cheung; Wen Zhou; Sai-Ming Lee; Hang-Wai Tong

204

Search for pseudoscalar cold dark matter  

SciTech Connect

AH dynamical evidence points to the conclusion that the predominant form of matter in the universe is in a non-luminous form. Furthermore, large scale deviations from uniform Hubble flow, and the recent COBE reports of inhomogeneities in the cosmic microwave background strongly suggest that we live in an exactly closed universe. If this is true, then ordinary baryonic matter could only be a minority component (10% at most) of the missing mass, and that what constitutes the majority of the dark matter must involve new physics. The axion is one of very few well motivated candidates which may comprise the dark matter. Additionally it is a `cold` dark-matter candidate which is preferred by the COBE data. We propose to construct and operate an experiment to search for axions which may constitute the dark matter of our own galaxy. As proposed by Sikivie, dark-matter axions may be detected by their stimulated conversion into monochromatic microwave photons in a tunable high-Q cavity inside a strong magnetic field. Our ability to mount an experiment quickly and take data within one year is due to a confluence of three factors. The first is the availability of a compact high field superconducting magnet and a local industrial partner, Wang NMR, who can make a very thermally efficient and economical cryostat for it. The second is an ongoing joint venture with the Institute for Nuclear Research of the Russian Academy of Sciences to do R&D on metalized precision-formed ceramic microwave cavities for the axion search, and INR has commited to providing all the microwave cavity arrays for this experiment, should this proposal be approved. The third is a commitment of very substantial startup capital monies from MIT for all of the state-of-the-art ultra-low noise microwave electronics, to one of our outstanding young collaborators who is joining their faculty.

van Bibber, K.; Stoeffl, W.; LLNL Collaborators

1992-05-29T23:59:59.000Z

205

Dark Rate of a Photomultiplier at Cryogenic Temperatures  

E-Print Network (OSTI)

When cooled below room temperature, the pulse response of a photomultiplier in the absence of light (dark rate) initially decreases, but then turns around near 250 K and continues to rise all the way down to 4 K. When the photomultiplier is cold, its dark response is burst-like. We have measured the characteristics of the dark response of a photomultiplier.

H. O. Meyer

2008-05-06T23:59:59.000Z

206

NOAA Technical Report NMFS 24 Temperature Conditions in  

E-Print Network (OSTI)

24 NOAA Technical Report NMFS 24 Temperature Conditions in the Cold Pool 1977-81: A Comparison. surveillance of foreign fishing off United States coastal waters, and the development and enforcement fishery problems. technical reports of general interest intended (0 aid conservation and management

207

Global Temperature in 2011, Trends, and Prospects 18 January 2012  

E-Print Network (OSTI)

resolution. 1 Arctic sea ice insulates the atmosphere from the ocean, allowing the atmosphere to become very cold, as much as tens of degrees below freezing. If warming yields thinner sea ice and areas of open substantially as the sea ice cover thins, even though the ocean (water) temperature changes little

208

TRENDS: TEMPERATURE  

NLE Websites -- All DOE Office Websites (Extended Search)

Historical Isotopic Temperature Record from the Vostok Ice Core Historical Isotopic Temperature Record from the Vostok Ice Core Graphics Digital Data J.R. Petit, D. Raynaud, and C. Lorius Laboratoire de Glaciogie et Géophysique de l'Environnement, CNRS, Saint Martin d'Hères Cedex, France J. Jouzel and G. Delaygue Laboratoire des Sciences du Climat et de l'Environnement (LSCE), CEA/CNRS, L'Orme des Merisiers, CEA Saclay, 91191 Gif-sur-Yvette Cedex, France N.I. Barkov Arctic and Antarctic Research Institute, Beringa Street 38, 199397 St. Petersburg, Russia V.M. Kotlyakov Institute of Geography, Staromonetny, per 29, Moscow 109017, Russia DOI: 10.3334/CDIAC/cli.006 Period of Record 420,000 years BP-present Methods Because isotopic fractions of the heavier oxygen-18 (18O) and deuterium (D) in snowfall are temperature-dependent and a strong spatial correlation

209

Impact of the tropopause temperature on the intensity of tropical cyclones an idealized study using a mesoscale model  

E-Print Network (OSTI)

) models TCs as heat engines, operating29 between the warm ocean and the cold tropopause and converting thermal energy to mechanical30 energy. Variations in the sea surface temperature (SST) have received much

Sobel, Adam

210

Surface tension in the cold and dense chiral transition and astrophysical applications  

E-Print Network (OSTI)

The surface tension of cold and dense QCD phase transitions has appeared recently as a key ingredient in different astrophysical scenarios, ranging from core-colapse supernovae explosions to compact star structure. If the surface tension is low enough, observable consequences are possible. Its value is however not known from first-principle methods in QCD, calling for effective approaches. Working within the framework of homogeneous nucleation by Langer, we discuss the steps that are needed to obtain the nucleation parameters from a given effective potential. As a model for deriving the effective potential for the chiral transition, we adopt the linear sigma model with constituent quarks at very low temperatures, which provides an effective description for the thermodynamics of the strong interaction in cold and dense matter, and predict a surface tension of Sigma ~ 5--15 MeV/fm^2, well below previous estimates. Including temperature effects and vacuum logarithmic corrections, we find a clear competition between these features in characterizing the dynamics of the chiral phase conversion.

L. F. Palhares; E. S. Fraga

2011-07-08T23:59:59.000Z

211

A high flux of ultra-cold chromium atoms in a magnetic guide  

Science Journals Connector (OSTI)

We report the observation of a very high flux of ultra-cold bosonic chromium atoms in a magnetic guide. The beam is created by operating a magneto-optical trap/moving optical molasses within the magnetic field of the guide. A relative detuning between two pairs of the cooling lasers cools the atoms into a frame moving along the axes of the guide. When the atoms are cooled into a moving frame with a velocity of 6 m s?1 we observe a maximum of the flux of 6 ? 109 atoms s?1. For these parameters the transversal temperature of the atoms after a 25 fold increase of the confining magnetic potential is about 1.2 mK. The longitudinal temperature is 400 µK.

Axel Griesmaier; Anoush Aghajani-Talesh; Markus Falkenau; Jimmy Sebastian; Alexander Greiner; Tilman Pfau

2009-01-01T23:59:59.000Z

212

Deterrence, disarmament, and post-cold war stability: Enhancing security for both ``haves`` and ``have nots``  

SciTech Connect

This paper examines possible developments in nuclear disarmament resulting from the end of the Cold War.

Lehman, R. F. II

1995-04-01T23:59:59.000Z

213

Cold domes over the warm pool: a study of the properties of cold domes produced by mesoscale convective systems during TOGA COARE  

E-Print Network (OSTI)

in specific humidity within their cold domes. As a result, increases in the latent heat fluxes observed in the cold domes were more dependent on the increases in wind speed. Stronger cold domes (cool, dry and strong winds) were associated with squall line MCSs...

Caesar, Kathy-Ann Lois

2012-06-07T23:59:59.000Z

214

Energy Management Strategies for Fast Battery Temperature Rise and Engine Efficiency Improvement at Very Cold Conditions  

Energy.gov (U.S. Department of Energy (DOE))

2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C.

215

Data Collection for Improved Cold Temperature Thermal Modeling and Strategy Development  

Energy.gov (U.S. Department of Energy (DOE))

2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation

216

Effects of soil moisture on the responses of soil temperatures to climate change in cold regions  

E-Print Network (OSTI)

and the Commu- nity Earth System Model 1 (CESM1) (http://poorly simulated by current earth system models. A number of

Subin, Z.M.

2014-01-01T23:59:59.000Z

217

11 - Cold ceramics: low-temperature processing of ceramics for applications in composites  

Science Journals Connector (OSTI)

Abstract: This chapter presents methods by which some ceramic-based and heterogeneous materials with different microstructures can be prepared without firing. The first part is on heterogeneity including the size, structure, microstructure, chemical composition, physical characteristics and behavior during use. The second part gives examples from our own experience in the laboratory over the past decade: dense aluminous cements, textured materials, porous materials and composites (lime and hemp fibers, Portland cement and hemp fibers and tape casting of aluminous cement composites). Some recommendations are given in the conclusion.

A. Smith; C. Peyratout

2014-01-01T23:59:59.000Z

218

Energy-saving strategies with personalized ventilation in cold climates  

E-Print Network (OSTI)

opportunity to control the supply air temperature. In Case 8the personalized supply air temperature control strategy onreveal that the supply air temperature control strategy has

Schiavon, Stefano; Melikov, Arsen

2009-01-01T23:59:59.000Z

219

IIFET 2004 Japan Proceedings OPTIMAL STORAGE TEMPERATURE DESIGN FOR FROZEN SEAFOOD INVENTORIES  

E-Print Network (OSTI)

IIFET 2004 Japan Proceedings 1 OPTIMAL STORAGE TEMPERATURE DESIGN FOR FROZEN SEAFOOD INVENTORIES a model for optimal temperature design for semi-perishable seafood inventory, and apply the model with the rate of inventory dissipation. Keywords: frozen seafood, cold storage, pacific whiting, surimi

220

Detection of changes in temperature extremes during the second half of the 20th century  

E-Print Network (OSTI)

Detection of changes in temperature extremes during the second half of the 20th century Nikolaos in extremely warm nights. Human influence on cold nights and days is also detected, although less robustly, but there is no detection of a significant human influence on extremely warm days. In the future, extreme temperatures

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Comparison of Clostridium botulinum genomes shows the absence of cold shock protein coding genes in type E neurotoxin producing strains  

Science Journals Connector (OSTI)

To collect specific information about the genetic mechanisms that Clostridium botulinum strains utilise when adapting to changing environments, 16 C. botulinum genomes were analysed with comparative genome sequence analysis. Particular attention was paid to low temperature adaptation and the presence of cold shock protein coding genes in these genomes was evaluated. Surprisingly, unlike any other studied strains, the type E neurotoxin-producing strains lacked these extremely conserved genes. This finding suggests unique mechanisms for the cold tolerance of these strains and offers a new perspective into the investigations concerning this subject. The sizes of the pangenome and core genome of a certain bacterial species are considered to reflect the versatility of the species. While the pangenome of C. botulinum was very large, the core genome appeared strikingly small, both findings highlighting the great diversity of C. botulinum strains.

Henna Söderholm; Kaisa Jaakkola; Panu Somervuo; Pia Laine; Petri Auvinen; Lars Paulin; Miia Lindström; Hannu Korkeala

2013-01-01T23:59:59.000Z

222

Beamline Temperatures  

NLE Websites -- All DOE Office Websites (Extended Search)

Temperatures Temperatures Energy: 3.0000 GeV Current: 493.2242 mA Date: 11-Jan-2014 21:40:00 Beamline Temperatures Energy 3.0000 GeV Current 493.2 mA 11-Jan-2014 21:40:00 LN:MainTankLevel 124.4 in LN:MainTankPress 56.9 psi SPEAR-BL:B120HeFlow 15.4 l/min SPEAR-BL:B131HeFlow 22.2 l/min BL 4 BL02:LCW 0.0 ℃ BL02:M0_LCW 31.5 ℃ BL 4-1 BL04-1:BasePlate -14.0 ℃ BL04-1:Bottom1 46.0 ℃ BL04-1:Bottom2 47.0 ℃ BL04-1:Lower 32.0 ℃ BL04-1:Moly 46.0 ℃ BL04-1:ChinGuard1 31.0 ℃ BL04-1:ChinGuard2 31.0 ℃ BL04-1:FirstXtalA -167.0 ℃ BL04-1:FirstXtalB -172.0 ℃ BL04-1:Pad1 31.0 ℃ BL04-1:Pad2 31.0 ℃ BL04-1:SecondXtalA -177.0 ℃ BL04-1:SecondXtalB -175.0 ℃ BL 4-2 BL04-2:BasePlate -14.0 ℃ BL04-2:Bottom1 24.0 ℃ BL04-2:Bottom2 25.0 ℃

223

Cold, Salty and Promiscuous-Gene-shuffling Microbes Dominate  

NLE Websites -- All DOE Office Websites (Extended Search)

September 30, 2013 September 30, 2013 Cold, Salty and Promiscuous—Gene-shuffling Microbes Dominate Antarctica’s Deep Lake Sequestered in Antarctica's Vestfold Hills, Deep Lake became isolated from the ocean 3,500 years ago by the Antarctic continent rising, resulting in a saltwater ecosystem that remains liquid in extreme cold, and providing researchers a unique niche for studying the evolution of the microbes that now thrive under such conditions. Deep Lake's microscopic inhabitants are dominated by haloarchaea, microbes that require high salt concentrations to grow and are naturally adapted to conditions - at minus 20°C - that would prove lethally cold to other organisms. In a detailed analysis published online the week of September 30, 2013 in the journal Proceedings

224

Lab begins demolition of Cold War-era buildings  

NLE Websites -- All DOE Office Websites (Extended Search)

Demolition begins of cold War-Era buildings Demolition begins of cold War-Era buildings Lab begins demolition of Cold War-era buildings More than 165,000 square feet of former research, production, and office buildings will be demolished. December 1, 2009 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Contact Communications Office

225

Happy (But Cold) New Year | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Happy (But Cold) New Year Happy (But Cold) New Year Happy (But Cold) New Year January 11, 2011 - 5:50pm Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy It's gotten chilly in Washington, D.C., but that's probably old news to most of the country. I was thinking about it this morning, though, when there was a definite draft whistling from my bedroom windows. My family lives in a condo, so we have limited options for replacing the windows (that's more of a whole-building thing). What alternatives do we have besides turning up the heat (and blowing our electric bill out of the water)? Our tried-and-true remedy is one my father-in-law uses every year. He puts sheets of plastic wrap over the windows and tapes it closed with duct tape or something similar. It's an easy, cheap and quick way to block drafts.

226

Summer Fellow Explores EM's Cold War Cleanup | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Summer Fellow Explores EM's Cold War Cleanup Summer Fellow Explores EM's Cold War Cleanup Summer Fellow Explores EM's Cold War Cleanup November 26, 2013 - 12:00pm Addthis Maine Maritime Academy senior Jared Woods learned about nuclear waste management issues at EM. Maine Maritime Academy senior Jared Woods learned about nuclear waste management issues at EM. WASHINGTON, D.C. - Jared Woods graduates from the Maine Maritime Academy (MMA) next month with the experience of an adventurous summer as a fellow in the DOE Scholars Program, an opportunity to explore the agency's careers and learn about its mission and operations. Assigned to EM's Washington, D.C. headquarters, Woods gained knowledge about nuclear safety and waste treatment under the guidance of EM Office of Safety Management Director Todd Lapointe, who graduated from MMA in 1987.

227

Chasing a common cold virus | Argonne National Laboratory  

NLE Websites -- All DOE Office Websites (Extended Search)

Robert Fischetti (left), Glen Nemerow (center) and Vijay Reddy load samples at the Advanced Photon Source. Robert Fischetti (left), Glen Nemerow (center) and Vijay Reddy load samples at the Advanced Photon Source. Robert Fischetti (left), Glen Nemerow (center) and Vijay Reddy load samples at the Advanced Photon Source. Chasing a common cold virus By Susheela Bhat * October 19, 2012 Tweet EmailPrint As the cold and flu season makes its annual visit, a team of researchers, using Argonne's Advanced Photon Source, continue to complete a detailed map of the human adenovirus-one of several viruses responsible for the common cold. Although human adenovirus is usually not deadly, it is a seasonal nuisance to some and can cause deadly infections in others. In the early 1990s, Glen Nemerow, professor and principal investigator at the Immunology and Microbial Science division of The Scripps Institute,

228

Summer Fellow Explores EM's Cold War Cleanup | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Summer Fellow Explores EM's Cold War Cleanup Summer Fellow Explores EM's Cold War Cleanup Summer Fellow Explores EM's Cold War Cleanup November 26, 2013 - 12:00pm Addthis Maine Maritime Academy senior Jared Woods learned about nuclear waste management issues at EM. Maine Maritime Academy senior Jared Woods learned about nuclear waste management issues at EM. WASHINGTON, D.C. - Jared Woods graduates from the Maine Maritime Academy (MMA) next month with the experience of an adventurous summer as a fellow in the DOE Scholars Program, an opportunity to explore the agency's careers and learn about its mission and operations. Assigned to EM's Washington, D.C. headquarters, Woods gained knowledge about nuclear safety and waste treatment under the guidance of EM Office of Safety Management Director Todd Lapointe, who graduated from MMA in 1987.

229

Cracking a Cold Case and Enduring Mystery | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Cracking a Cold Case and Enduring Mystery Cracking a Cold Case and Enduring Mystery Cracking a Cold Case and Enduring Mystery July 1, 2013 - 3:04pm Addthis Chris Brandon of the ROMACONS project collects a sample of ancient Roman concrete drilled from a breakwater in Pozzuoli Bay, near Naples, Italy. The breakwater dates back to roughly 37 B.C. | Photo courtesy of J.P. Oleson. Chris Brandon of the ROMACONS project collects a sample of ancient Roman concrete drilled from a breakwater in Pozzuoli Bay, near Naples, Italy. The breakwater dates back to roughly 37 B.C. | Photo courtesy of J.P. Oleson. Charles Rousseaux Charles Rousseaux Senior Writer, Office of Science What are the key facts? Modern concrete buildings -- most made with Portland cement -- are built to last for a hundred or so years. But Roman concrete has withstood

230

Production of Ultra-Cold-Neutrons in Solid ?-Oxygen  

E-Print Network (OSTI)

Our recent neutron scattering measurements of phonons and magnons in solid \\alpha-oxygen have led us to a new understanding of the production mechanismen of ultra-cold-neutrons (UCN) in this super-thermal converter. The UCN production in solid \\alpha-oxygen is dominated by the excitation of phonons. The contribution of magnons to UCN production becomes only slightly important above E >10 meV and at E >4 meV. Solid \\alpha-oxygen is in comparison to solid deuterium less effcient in the down-scattering of thermal or cold neutrons into the UCN energy regime.

E. Gutsmiedl; A. Frei; F. Boehle; A. Maier; S. Paul; H. Schober; A. Orecchini

2009-11-23T23:59:59.000Z

231

Hollow cathode cold atmospheric plasma source with monoatomic and molecular gases  

Science Journals Connector (OSTI)

Performance of the radio frequency (r.f.) hollow cathode at atmospheric pressure was tested for neon, argon, nitrogen and air. A non-equilibrium (cold) atmospheric plasma was generated in the gas flowing through the cathode. The electrode system was installed in a chamber open to ambient atmosphere. Two r.f. frequencies 13.56 and 27.12 \\{MHz\\} were compared. Similarly to the low pressure hollow cathodes the higher frequency was found to be more suitable for all tested gases, due to a lower minimum r.f. voltage and related power for ignition and sustaining a stable plasma. The fused hollow cathode (FHC) source produces a stable and uniform plasma over large area in monoatomic gases, suitable for surface treatment of temperature sensitive materials, for cleaning and surface activation applications. However, a substantial difference was found in discharge performance when using a molecular gas. An optimization of the impedance matching network enabled generation of a stable cold plasma at r.f. powers below 50 W in both air and nitrogen. Possibilities of a stable uniform air (or nitrogen) plasma generation over large areas by the FHC sources are discussed, too.

H Baránková; L Bárdoš

2003-01-01T23:59:59.000Z

232

Summary Of Cold Crucible Vitrification Tests Results With Savannah River Site High Level Waste Surrogates  

SciTech Connect

The cold crucible inductive melting (CCIM) technology successfully applied for vitrification of low- and intermediate-level waste (LILW) at SIA Radon, Russia, was tested to be implemented for vitrification of high-level waste (HLW) stored at Savannah River Site, USA. Mixtures of Sludge Batch 2 (SB2) and 4 (SB4) waste surrogates and borosilicate frits as slurries were vitrified in bench- (236 mm inner diameter) and full-scale (418 mm inner diameter) cold crucibles. Various process conditions were tested and major process variables were determined. Melts were poured into 10L canisters and cooled to room temperature in air or in heat-insulated boxes by a regime similar to Canister Centerline Cooling (CCC) used at DWPF. The products with waste loading from ~40 to ~65 wt.% were investigated in details. The products contained 40 to 55 wt.% waste oxides were predominantly amorphous; at higher waste loadings (WL) spinel structure phases and nepheline were present. Normalized release values for Li, B, Na, and Si determined by PCT procedure remain lower than those from EA glass at waste loadings of up to 60 wt.%.

Stefanovsky, Sergey; Marra, James; Lebedev, Vladimir

2014-01-13T23:59:59.000Z

233

A warm heart in a cold body - melter technology for tomorrow  

SciTech Connect

As part of its research and development program on waste conditioning, the CEA has developed a cold crucible induction melting technique suitable for a variety of materials: metals, molten salts or oxides including amorphous glass or vitrocrystalline. The technique can be used, for example, to produce containment glass at high temperatures without contamination of the feed material and without corrosion of the crucible itself. The material is heated to the core, but encased in a solidified shell of the same material that forms in contact with the water-cooled melter walls - a very warm {open_quotes}heart{close_quotes} in a cold {open_quotes}body{close_quotes}. This development opens the way to new and even more sophisticated containment matrices; new applications are already envisaged in the area of incineration: burning contaminated chlorinated plastic waste or even sulfonate ion exchange resins from thermal power stations is feasible without risk of corrosion by chlorine or sulfur. Waste incineration and containment of the residue may be performed simultaneously in a single reactor.

Jouan, A.; Boen, R. [Rhone Valley Research Center, Bagnols-sur-Ceze (France); Merlin, S.; Roux, P. [Societe Generale pour les Techniques Nouvelles (SGN), Bagnols-sur-Ceze (France)

1996-12-31T23:59:59.000Z

234

Experimental results of the investigation of a laboratory cold seal TEC  

SciTech Connect

The results of experimental investigation of characteristics of a laboratory Cold Seal Thermionic Energy Converter (CS TEC) with a built-in gas regulated heat pipe are discussed. They were obtained to justify the electric-thermal-physical characteristics of a flame heated CS TEC. The CS TEC design is being developed by a joint Russian-Dutch team of researchers with support of the Netherlands Organization for Scientific Research (NWO). The concept of this flame heated Cold Seal TEC was presented in a previous publication. This paper deals with experimental data on the emission properties of electrodes and the voltage-current characteristics (JVC) of an electrically heated laboratory TEC. They were studied over a wide interval of variation in the electrode temperature and interelectrode distance. The cesium vapour working pressure in the interelectrode space was regulated both by the conventional method (using a cesium reservoir) and by means of a gas regulated cesium heat pipe. This allows one to use a rubber (viton) seal in the non-condensing gas (argon) area. The acquired experimental characteristics will allow one to identify the inner parameters at further stages of their work when testing the full-scale flame heated CS TEC.

Yarygin, V.I.; Mironov, V.S.; Kiryushenko, A.I.; Mikheyev, A.S.; Tulin, S.M.; Meleta, Y.A.; Yarygin, D.V.; Wolff, L.R.

1998-07-01T23:59:59.000Z

235

Transfer-type products accompanying cold fusion reactions  

Science Journals Connector (OSTI)

Production of nuclei heavier than the target is treated for projectile-target combinations used in cold fusion reactions leading to superheavy nuclei. These products are related to transfer-type or to asymmetry-exit-channel quasifission reactions. The production of isotopes in the transfer-type reactions emitting of ? particles with large energies is discussed.

G. G. Adamian and N. V. Antonenko

2005-12-29T23:59:59.000Z

236

Fundamental Physics with Cold Neutrons J. S. Nico,1  

E-Print Network (OSTI)

Fundamental Physics with Cold Neutrons J. S. Nico,1 G. L. Greene,2 F. E. Wietfeldt,3 and W. S physics and quantum chromodynamics (QCD). Low energy properties of nucleons and nuclei, such as weak interactions in n-A systems, low energy n-A scattering amplitudes, and the internal electro- magnetic structure

237

Natural cold baryogenesis from strongly interacting electroweak symmetry breaking  

SciTech Connect

The mechanism of ''cold electroweak baryogenesis'' has been so far unpopular because its proposal has relied on the ad-hoc assumption of a period of hybrid inflation at the electroweak scale with the Higgs acting as the waterfall field. We argue here that cold baryogenesis can be naturally realized without the need to introduce any slow-roll potential. Our point is that composite Higgs models where electroweak symmetry breaking arises via a strongly first-order phase transition provide a well-motivated framework for cold baryogenesis. In this case, reheating proceeds by bubble collisions and we argue that this can induce changes in Chern-Simons number, which in the presence of new sources of CP violation commonly lead to baryogenesis. We illustrate this mechanism using as a source of CP violation an effective dimension-six operator which is free from EDM constraints, another advantage of cold baryogenesis compared to the standard theory of electroweak baryogenesis. Our results are general as they do not rely on any particular UV completion but only on a stage of supercooling ended by a first-order phase transition in the evolution of the universe, which can be natural if there is nearly conformal dynamics at the TeV scale. Besides, baryon-number violation originates from the Standard Model only.

Konstandin, Thomas; Servant, Géraldine, E-mail: tkonstan@cern.ch, E-mail: geraldine.servant@cern.ch [CERN Physics Department, Theory Division, CH-1211 Geneva 23 (Switzerland)

2011-07-01T23:59:59.000Z

238

BOOK REVIEW Cold War Social Science: Knowledge Production,  

E-Print Network (OSTI)

BOOK REVIEW Cold War Social Science: Knowledge Production, Liberal Democracy, and Human Nature, 2012. Reviewed by Paul Erickson, Wesleyan University Taken together, these two important books make intriguing statements about the way to write the histories of fields like psychology, sociology, anthropology

Solovey, Mark

239

Adaptation and Acclimation of Photosynthetic Microorganisms to Permanently Cold Environments  

Science Journals Connector (OSTI)

...near-freezing water column, and anoxic...intersystem PQ pool (94). This...that is, to reduce the functional...cold ecosystems make up one of the largest...electron transport pool (excitation pressure...rates of energy consumption by downstream...and the liquid water beneath the ice...

Rachael M. Morgan-Kiss; John C. Priscu; Tessa Pocock; Loreta Gudynaite-Savitch; Norman P. A. Huner

2006-03-01T23:59:59.000Z

240

THE COLD AND DARK PROCESS AT THE SAVANNAH RIVER SITE  

SciTech Connect

The deactivation and decommissioning (D&D) of a facility exposes D&D workers to numerous hazards. One of the more serious hazards is coming into contact to hazardous energy sources (e.g. electrical, pressurized steam). At the Savannah River Site (SRS) a formal process for identifying and eliminating sources of hazardous energy was developed and is called ''Cold & Dark''. Several ''near miss'' events involving cutting of energized conductors during D&D work in buildings thought to be isolated identified the need to have a formal process to identify and isolate these potentially hazardous systems. This process was developed using lessons learned from D&D activities at the Rocky Flats Environmental Technology Site (Rocky Flats) in Colorado. The Cold & Dark process defines an isolation boundary (usually a building perimeter) and then systematically identifies all of the penetrations through this boundary. All penetrations that involve hazardous energy sources are then physically air-gapped. The final product is a documented declaration of isolation performed by a team involving operations, engineering, and project management. Once the Cold & Dark declaration is made for a building work can proceed without the usual controls used in an operational facility (e.g. lockout/tagout, arc flash PPE). It is important to note that the Cold & Dark process does not remove all hazards from a facility. Work planning and controls still need to address hazards that can be present from such things as chemicals, radiological contamination, residual liquids, etc., as well as standard industrial hazards.

Gilmour, J; William Austin, W; Cathy Sizemore, C

2007-01-31T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Fire Hazard Analysis for the Cold Vacuum Drying (CVD) Facility  

SciTech Connect

This Fire Hazard Analysis assesses the risk from fire within individual fire areas in the Cold Vacuum Drying Facility at the Hanford Site in relation to existing or proposed fire protection features to ascertain whether the objectives of DOE Order 5480.7A Fire Protection are met.

JOHNSON, B.H.

1999-08-19T23:59:59.000Z

242

www.usask.ca/water CHANGING COLD REGIONS NETWORK  

E-Print Network (OSTI)

www.usask.ca/water CHANGING COLD REGIONS NETWORK Opportunities for Graduate Students and Post-Doctoral Fellows in Water-Related Research The Global Institute for Water Security (GIWS; www.usask.ca. For more details regarding the CCRN, please refer to our website at http://www.ccrnetwork.ca/. We invite

Saskatchewan, University of

243

Cold spray coating: review of material systems and future perspectives  

E-Print Network (OSTI)

. This includes metallic, ceramic and metal matrix composite (MMC) coatings and their applications. Polymer (both matrix composite, Polymer, Ceramic, Nanostructured Powder This paper is part of a special issue on cold. Different materials such as metals, ceramics, composites and polymers can be deposited using CS, creating

Suresh, Subra

244

Turbulent Erosion Of Persistent Cold-Air Pools: Numerical Simulations  

Science Journals Connector (OSTI)

High-resolution idealized numerical simulations are used to examine the turbulent removal of cold-air pools commonly observed in mountain valleys and basins. A control simulation with winds aloft increasing from 0.5 to 20 m s-1 over 20 h combined ...

Neil P. Lareau; John D. Horel

245

ccsd00002835, Light scattering from cold rolled aluminum surfaces  

E-Print Network (OSTI)

ccsd­00002835, version 2 ­ 14 Sep 2004 Light scattering from cold rolled aluminum surfaces Damien Camille Soula , 31400 Toulouse, France We present experimental light scattering measurements from aluminum scattering measurements of an s-polarized electromagnetic wave (632.8 nanometers) from a rough aluminum alloy

246

Cold Vacuum Drying (CVD) Electrical System Design Description  

SciTech Connect

This document provides a technical explanation of the design and operation of the electrical system for the Cold Vacuum Drying Facility. This document identifies the requirements, and the basis for the requirements and details on how the requirements have been implemented in the design and construction of the facility. This document also provides general guidance for the surveillance, testing, and maintenance of this system.

BRISBIN, S.A.

1999-06-17T23:59:59.000Z

247

A 1.5–4 K detachable cold?sample transfer system: Application to inertially confined fusion with spin?polarized hydrogen fuels  

Science Journals Connector (OSTI)

A compact cold?transfer apparatus for engaging and retrieving samples at liquid?helium temperatures (1.5–4 K) maintaining the samples at such temperatures for periods of hours and subsequently inserting them in diverse apparatuses followed by disengagement is described. The properties of several thermal radiation?insulating shrouds necessary for very low sample temperatures are presented. The immediate intended application is transportable target shells containing highly spin?polarized deuterons in solid HD or D2 for inertially confined fusion experiments. The system is also valuable for unpolarized high?density fusion fuels as well as for other applications which are discussed.

N. Alexander; J. Barden; Q. Fan; A. Honig

1991-01-01T23:59:59.000Z

248

The Cold and Dark Process at the Savannah River Site  

SciTech Connect

The deactivation and decommissioning (D and D) of a facility exposes D and D workers to numerous hazards. One of the more serious hazards is coming into contact to hazardous energy sources (e.g. electrical, pressurized steam). At the Savannah River Site (SRS) a formal process for identifying and eliminating sources of hazardous energy was developed and is called 'Cold and Dark'. Several 'near miss' events involving cutting of energized conductors during D and D work in buildings thought to be isolated identified the need to have a formal process to identify and isolate these potentially hazardous systems. This process was developed using lessons learned from D and D activities at the Rocky Flats Environmental Technology Site (Rocky Flats) in Colorado. The Cold and Dark process defines an isolation boundary (usually a building perimeter) and then systematically identifies all of the penetrations through this boundary. All penetrations that involve hazardous energy sources are then physically air-gapped. The final product is a documented declaration of isolation performed by a team involving operations, engineering, and project management. Once the Cold and Dark declaration is made for a building work can proceed without the usual controls used in an operational facility (e.g. lockout/tag-out, arc flash PPE). It is important to note that the Cold and Dark process does not remove all hazards from a facility. Work planning and controls still need to address hazards that can be present from such things as chemicals, radiological contamination, residual liquids, etc., as well as standard industrial hazards. Savannah River Site experienced 6 electrical events prior to declaring a facility 'cold and dark' and has had zero electrical events after 'cold and dark' declaration (263 facilities to date). The formal Cold and Dark process developed at SRS has eliminated D and D worker exposures to hazardous energy sources. Since the implementation of the process there have been no incidents involving energized conductors or pressurized liquids/gases. During this time SRS has demolished over 200 facilities. The ability to perform intrusive D and D activities without the normal controls such as lock outs results in shorter schedule durations and lower overall costs for a facility D and D.

Gilmour, John C. [CH2SRC, Savannah River Site, Aiken, SC 29808 (United States); Willis, Michael L. [Washington Savannah River Company, Aiken, SC 29808 (United States)

2008-01-15T23:59:59.000Z

249

Determination of temperature-dependent heat conductivity and thermal diffusivity of waste glass melter feed  

SciTech Connect

The cold cap is a layer of reacting glass batch floating on the surface of melt in an all-electric continuous glass melter. The heat needed for the conversion of the melter feed to molten glass must be transferred to and through the cold cap. Since the heat flux into the cold cap determines the rate of melting, the heat conductivity is a key property of the reacting feed. We designed an experimental setup consisting of a large cylindrical crucible with an assembly of thermocouples that monitors the evolution of the temperature field while the crucible is heated at a constant rate. Then we used two methods to calculate the heat conductivity and thermal diffusivity of the reacting feed: the approximation of the temperature field by polynomial functions and the finite-volume method coupled with least-squares analysis. Up to 680°C, the heat conductivity of the reacting melter feed was represented by a linear function of temperature.

Pokorny, Richard; Rice, Jarrett A.; Schweiger, Michael J.; Hrma, Pavel R.

2013-06-01T23:59:59.000Z

250

Maintaining optimum fluorescent lamp performance under elevated temperature conditions  

SciTech Connect

This paper describes a new technique for optimizing fluorescent lamp performance under elevated temperature conditions. This approach uses a thermo-electric Peltier device to produce a localized cold spot temperature of approximately 40/sup 0/C, allowing the lamps to maintain maximum light output and efficacy independent of prevailing ambient temperatures inside a luminaire. Experimental data show that a 20% increase in light output and a 10% increase in efficacy over typical lamp performance in a warm fixture environment can be obtained using this device. Only 0.25 watts must be supplied to the Peltier device to produce these results.

Siminovitch, M.J.; Rubinstein, F.M.; Clark, T.A.; Verderber, R.R.

1986-04-01T23:59:59.000Z

251

Formation of molecular ions by radiative association of cold trapped atoms and ions  

E-Print Network (OSTI)

Radiative emission during cold collisions between trapped laser-cooled Rb atoms and alkaline-earth ions (Ca + , Sr + , Ba +) and Yb + are studied theoretically, using accurate effective-core-potential based quantum chemistry calculations of potential energy curves and transition dipole moments of the related molecular ions. Radiative association of molecular ions is predicted to occur for all systems with a cross section two to ten times larger than the radiative charge transfer one. Partial and total rate constants are also calculated and compared to available experiments. Narrow shape resonances are expected, which could be detectable at low temperature with an experimental resolution at the limit of the present standards. Vibrational distributions are also calculated, showing that the final molecular ions are not created in their ground state level.

Silva, Humberto Da; Aymar, Mireille; Dulieu, Olivier

2015-01-01T23:59:59.000Z

252

Formation of molecular ions by radiative association of cold trapped atoms and ions  

E-Print Network (OSTI)

Radiative emission during cold collisions between trapped laser-cooled Rb atoms and alkaline-earth ions (Ca + , Sr + , Ba +) and Yb + are studied theoretically, using accurate effective-core-potential based quantum chemistry calculations of potential energy curves and transition dipole moments of the related molecular ions. Radiative association of molecular ions is predicted to occur for all systems with a cross section two to ten times larger than the radiative charge transfer one. Partial and total rate constants are also calculated and compared to available experiments. Narrow shape resonances are expected, which could be detectable at low temperature with an experimental resolution at the limit of the present standards. Vibrational distributions are also calculated, showing that the final molecular ions are not created in their ground state level.

Humberto Da Silva Jr; Maurice Raoult; Mireille Aymar; Olivier Dulieu

2015-01-26T23:59:59.000Z

253

Micro-canonical thermodynamics: Why does heat flow from hot to cold  

E-Print Network (OSTI)

We show how to use a central limit approximation for additive co-cycles to describe non-equilibrium and far from equilibrium thermodynamic behavior. We consider first two weakly coupled Hamiltonian dynamical systems initially at different micro-canonical temperatures. We describe a stochastic model where the energy-transfer between the two systems is considered as a random variable satisfying a central limit approximation. We show that fluctuations in energy observables are linearly related to the heat-transfer (dissipation). As a result, on average, heat flows from hot to cold. We also consider the far from equilibrium situation of a non-Hamiltonian thermostatted system as in Evans et al. {\\em Phys.\\ Rev.\\ Lett.} {\\bf 71}, 2401 (1993). Applying the same central limit approximation we re-derive their relation for the violation of the 2nd law of thermodynamics. We note that time-reversal symmetry is not used in our derivation.

Hans Henrik Rugh

2012-04-10T23:59:59.000Z

254

Cold crucible induction melter studies for making glass ceramic waste forms: A feasibility assessment  

SciTech Connect

Glass ceramics are being developed to immobilize fission products, separated from used nuclear fuel by aqueous reprocessing, into a stable waste form suitable for disposal in a geological repository. This work documents the glass ceramic formulation at bench scale and for a scaled melter test performed in a pilot-scale (approximately 1/4 scale) cold crucible induction melter (CCIM). Melt viscosity, electrical conductivity, and crystallization behavior upon cooling were measured on a small set of compositions to select a formulation for melter testing. Property measurements also identified a temperature range for melter operation and cooling profiles necessary to crystallize the targeted phases in the waste form. Bench scale and melter run results successfully demonstrate the processability of the glass ceramic using the CCIM melter technology.

Jarrod Crum [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Vince Maio [Idaho National Laboratory (INL), Idaho Falls, ID (United States); John McCloy [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Clark Scott [Idaho National Laboratory (INL), Idaho Falls, ID (United States); Brian Riley [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Brad Benefiel [Idaho National Laboratory (INL), Idaho Falls, ID (United States); John Vienna [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Kip Archibald [Idaho National Laboratory (INL), Idaho Falls, ID (United States); Carmen Rodriguez [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Veronica Rutledge [Idaho National Laboratory (INL), Idaho Falls, ID (United States); Zihua Zhu [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Joe Ryan [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Matthew Olszta [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)

2014-01-01T23:59:59.000Z

255

High flux isotope reactor cold source preconceptual design study report  

SciTech Connect

In February 1995, the deputy director of Oak Ridge National Laboratory (ORNL) formed a group to examine the need for upgrades to the High Flux Isotope Reactor (HFIR) system in light of the cancellation of the Advanced Neutron Source Project. One of the major findings of this study was that there was an immediate need for the installation of a cold neutron source facility in the HFIR complex. The anticipated cold source will consist of a cryogenic LH{sub 2} moderator plug, a cryogenic pump system, a refrigerator that uses helium gas as a refrigerant, a heat exchanger to interface the refrigerant with the hydrogen loop, liquid hydrogen transfer lines, a gas handling system that includes vacuum lines, and an instrumentation and control system to provide constant system status monitoring and to maintain system stability. The scope of this project includes the development, design, safety analysis, procurement/fabrication, testing, and installation of all of the components necessary to produce a working cold source within an existing HFIR beam tube. This project will also include those activities necessary to transport the cold neutron beam to the front face of the present HFIR beam room. The cold source project has been divided into four phases: (1) preconceptual, (2) conceptual design and research and development (R and D), (3) detailed design and procurement, and (4) installation and operation. This report marks the conclusion of the preconceptual phase and establishes the concept feasibility. The information presented includes the project scope, the preliminary design requirements, the preliminary cost and schedule, the preliminary performance data, and an outline of the various plans for completing the project.

Selby, D.L.; Bucholz, J.A.; Burnette, S.E. [and others

1995-12-01T23:59:59.000Z

256

V-030: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

30: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny 30: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service V-030: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service November 21, 2012 - 3:00am Addthis PROBLEM: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service PLATFORM: ColdFusion 10 Update 1 and above for Windows ABSTRACT: Adobe ColdFusion Denial of Service Vulnerability REFERENCE LINKS: Adobe Vulnerability identifier: APSB12-25 SecurityTracker Alert ID: 1027787 Secunia Advisory SA51335 CVE-2012-5674 IMPACT ASSESSMENT: High DISCUSSION: A vulnerability was reported in Adobe ColdFusion. A remote user can cause denial of service conditions. A remote user can send specially crafted data to cause unspecified denial of service conditions on the target ColdFusion service on Windows Internet

257

T-698: Adobe ColdFusion Input Validation Flaw in 'probe.cfm'...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ColdFusion Input Validation Flaw in 'probe.cfm' Permits Cross-Site Scripting Attacks T-698: Adobe ColdFusion Input Validation Flaw in 'probe.cfm' Permits Cross-Site Scripting...

258

Analyzing the level of service and cost trade-offs in cold chain transportation  

E-Print Network (OSTI)

This thesis discusses the tradeoff between transportation cost and the level of service in cold chain transportation. Its purpose is to find the relationship between transportation cost and the level of service in cold ...

Liu, Saiqi

2009-01-01T23:59:59.000Z

259

American racism and African diplomats: race and American Cold War policy in West Africa  

E-Print Network (OSTI)

American society. The interconnectedness between Cold War ideology and civil rights increased during the 1960s. Cold War tensions escalated and the American government became increasingly concerned about the effect of racial strife on the country's image...

Oriabure, Stephannie Ebhota

2001-01-01T23:59:59.000Z

260

SciTech Connect: On the Front Lines of the Cold War Los Alamos...  

Office of Scientific and Technical Information (OSTI)

On the Front Lines of the Cold War Los Alamos 1970-1992 Citation Details In-Document Search Title: On the Front Lines of the Cold War Los Alamos 1970-1992 On the Front Lines of the...

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

-The Bubble Chamber -http://thebubblechamber.org -Review: Cold War Social Science  

E-Print Network (OSTI)

[1] - The Bubble Chamber - http://thebubblechamber.org - Review: Cold War Social Science Posted assume that all developments in the social sciences during the Cold War period can be The Bubble Chamber

Solovey, Mark

262

Role of energy cost in the yield of cold ternary fission of 252 Cf  

Science Journals Connector (OSTI)

The energy costs in the cold ternary fission of 252Cf for various light charged particle emission are calculated by including Wong’s correction for Coulomb potential. Energy cost is found to be higher in cold ......

P V KUNHIKRISHNAN; K P SANTHOSH

2013-01-01T23:59:59.000Z

263

Photons and particles emitted from cold atmospheric-pressure plasma inactivate bacteria and biomolecules independently and synergistically  

Science Journals Connector (OSTI)

...particles emitted from cold atmospheric-pressure plasma inactivate bacteria and...Bochum, Germany Cold atmospheric-pressure plasmas are currently in use...bactericidal properties of cold atmospheric-pressure plasma. plasma medicine|atmospheric-pressure...

2013-01-01T23:59:59.000Z

264

An exceptionally cold-adapted alpha-amylase from a metagenomic library of a cold and alkaline environment  

Science Journals Connector (OSTI)

A cold-active ?-amylase, AmyI3C6, identified by a functional metagenomics approach was expressed in Escherichia coli and purified to homogeneity. Sequence analysis showed that the AmyI3C6 amylase was similar to ?...

Jan Kjølhede Vester; Mikkel Andreas Glaring…

2014-07-01T23:59:59.000Z

265

Independent Oversight Review, Hanford K Basin and Cold Vacuum Drying Facility- August 2012  

Energy.gov (U.S. Department of Energy (DOE))

Review of Hanford K Basin and Cold Vacuum Drying Facility Found Fuel Multi-Canister Overpack Operations

266

Thermodynamic performance analysis of a combined power cycle using low grade heat source and LNG cold energy  

Science Journals Connector (OSTI)

Abstract Thermodynamic analysis of a combined cycle using a low grade heat source and LNG cold energy was carried out. The combined cycle consisted of an ammonia–water Rankine cycle with and without regeneration and a LNG Rankine cycle. A parametric study was conducted to examine the effects of the key parameters, such as ammonia mass fraction, turbine inlet pressure, condensation temperature. The effects of the ammonia mass fraction on the temperature distributions of the hot and cold streams in heat exchangers were also investigated. The characteristic diagram of the exergy efficiency and heat transfer capability was proposed to consider the system performance and expenditure of the heat exchangers simultaneously. The simulation showed that the system performance is influenced significantly by the parameters with the ammonia mass fraction having largest effect. The net work output of the ammonia–water cycle may have a peak value or increase monotonically with increasing ammonia mass fraction, which depends on turbine inlet pressure or condensation temperature. The exergy efficiency may decrease or increase or have a peak value with turbine inlet pressure depending on the ammonia mass fraction.

Kyoung Hoon Kim; Kyung Chun Kim

2014-01-01T23:59:59.000Z

267

Cold drawn steel wires--processing, residual stresses and ductility Part II: Synchrotron and neutron diffraction  

E-Print Network (OSTI)

Cold drawn steel wires--processing, residual stresses and ductility Part II: Synchrotron Received in final form 29 September 2005 ABSTRACT Cold drawing of steel wires leads to an increase proposed that cold drawing would induce a phase transformation of the steel, possibly a martensitic

268

Persisting cold extremes under 21stcentury warming scenarios Evan Kodra,1,2  

E-Print Network (OSTI)

Persisting cold extremes under 21stcentury warming scenarios Evan Kodra,1,2 Karsten Steinhaeuser,1 27 April 2011. [1] Analyses of climate model simulations and observations reveal that extreme cold. The gridbased intensity, duration and frequency of cold extreme events are calculated annually through three

Minnesota, University of

269

Cold Air Distribution in Office Buildings: Technology Assessment for California  

E-Print Network (OSTI)

accurate control of supply air volume and temperature willof a control strategy to reset supply air temperature at thecontrol strategies and more efficient motors and fans; (b) System-powered induction boxes; and (c) Direct supply of low temperature

Bauman, F.S.

2008-01-01T23:59:59.000Z

270

High Temperatures & Electricity Demand  

E-Print Network (OSTI)

High Temperatures & Electricity Demand An Assessment of Supply Adequacy in California Trends.......................................................................................................1 HIGH TEMPERATURES AND ELECTRICITY DEMAND.....................................................................................................................7 SECTION I: HIGH TEMPERATURES AND ELECTRICITY DEMAND ..........................9 BACKGROUND

271

Cold Spring Harbor, New York: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Cold Spring Harbor, New York: Energy Resources Cold Spring Harbor, New York: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 40.8714873°, -73.456788° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":40.8714873,"lon":-73.456788,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

272

Cold cases heat up through Lawrence Livermore approach to identifying  

NLE Websites -- All DOE Office Websites (Extended Search)

10-03 10-03 For immediate release: 10/10/2012 | NR-12-10-03 Cold cases heat up through Lawrence Livermore approach to identifying remains Anne M Stark, LLNL, (925) 422-9799, stark8@llnl.gov Printer-friendly Bruce Buchholz loads a sample in the accelerator. High Resolution Image LIVERMORE, Calif. -- In an effort to identify the thousands of John/Jane Doe cold cases in the United States, a Lawrence Livermore National Laboratory researcher and a team of international collaborators have found a multidisciplinary approach to identifying the remains of missing persons. Using "bomb pulse" radiocarbon analysis developed at Lawrence Livermore, combined with recently developed anthropological analysis and forensic DNA techniques, the researchers were able to identify the remains of a missing

273

Mr. Frank Archer President Niagara Cold Drawn Steel Corporation  

Office of Legacy Management (LM)

Department of Energy Department of Energy Washington, DC 20585 FEB 2 1 1991 ' i-. 1,; ' -, f ' + \ 1 : , .J p- * c - Mr. Frank Archer President Niagara Cold Drawn Steel Corporation 110 Hopkins Street P.O. Box 399 Buffalo, NY 14240 Dear Mr. Archer: I have executed the consent forms for the performance of a radiological survey of the Niagara Cold Drawn Steel Corporation's property under the Formerly Utilized Sites Remedial Action Program (FUSRAP) of the U.S. Department of Energy (DOE). I enclose a copy of the consent for your company's records. Oak Ridge Associated Universities (ORAU) will perform the survey of your company's property. MS. Michelle Landis (615-576-2908) is the project manager for ORAU. We have worked with Mr. Shells of your staff on this project and

274

Formation of superheavy nuclei in cold fusion reactions  

E-Print Network (OSTI)

Within the concept of the dinuclear system (DNS), a dynamical model is proposed for describing the formation of superheavy nuclei in complete fusion reactions by incorporating the coupling of the relative motion to the nucleon transfer process. The capture of two heavy colliding nuclei, the formation of the compound nucleus and the de-excitation process are calculated by using an empirical coupled channel model, solving a master equation numerically and applying statistical theory, respectively. Evaporation residue excitation functions in cold fusion reactions are investigated systematically and compared with available experimental data. Maximal production cross sections of superheavy nuclei in cold fusion reactions with stable neutron-rich projectiles are obtained. Isotopic trends in the production of the superheavy elements Z=110, 112, 114, 116, 118 and 120 are analyzed systematically. Optimal combinations and the corresponding excitation energies are proposed.

Feng, Zhao-Qing; Li, Jun-Qing; Scheid, Werner

2007-01-01T23:59:59.000Z

275

Formation of superheavy nuclei in cold fusion reactions  

E-Print Network (OSTI)

Within the concept of the dinuclear system (DNS), a dynamical model is proposed for describing the formation of superheavy nuclei in complete fusion reactions by incorporating the coupling of the relative motion to the nucleon transfer process. The capture of two heavy colliding nuclei, the formation of the compound nucleus and the de-excitation process are calculated by using an empirical coupled channel model, solving a master equation numerically and applying statistical theory, respectively. Evaporation residue excitation functions in cold fusion reactions are investigated systematically and compared with available experimental data. Maximal production cross sections of superheavy nuclei in cold fusion reactions with stable neutron-rich projectiles are obtained. Isotopic trends in the production of the superheavy elements Z=110, 112, 114, 116, 118 and 120 are analyzed systematically. Optimal combinations and the corresponding excitation energies are proposed.

Zhao-Qing Feng; Gen-Ming Jin; Jun-Qing Li; Werner Scheid

2007-10-17T23:59:59.000Z

276

Viscoelastic modes in a strongly coupled, cold, magnetized dusty plasma  

SciTech Connect

A generalized hydrodynamical model has been used to study the low frequency modes in a strongly coupled, cold, magnetized dusty plasma. Such plasmas exhibit elastic properties due to the strong correlations among dust particles and the tensile stresses imparted by the magnetic field. It has been shown that longitudinal compressional Alfven modes and elasticity modified transverse shear mode exist in such a medium. The features of these collective modes are established and discussed.

Banerjee, Debabrata; Mylavarapu, Janaki Sita; Chakrabarti, Nikhil [Saha Institute of Nuclear Physics, I/AF Bidhannagar, Calcutta 700 064 (India)

2010-11-15T23:59:59.000Z

277

Arrangement for studying pulsed cold emission of electrons  

SciTech Connect

An arrangement is presented for studying pulsed, cold electron emission which is composed of the following components: a generator unit for high-voltage rectangular pulses that permits a series of pulses of negative and positive polarity to be obtained in which the duration can be smoothly varied from 5 usec to 5 sec at amplitudes from 0 to 38 kV, and also a sensitive circuit for registering weak pulses of the emission currents.

Egorov, N.V.; Kallistov, K.O.; Kharitonov, O.A.

1985-10-01T23:59:59.000Z

278

Cold Vacuum Drying (CVD) Electrical System Design Description  

SciTech Connect

This system design description (SDD) provides a technical explanation of the design and operation of the electrical system for the Cold Vacuum Drying Facility (CVDF). This SDD also identifies the requirements, and the basis for the requirements and details on how the requirements have been implemented in the design and construction of the facility. This SDD also provides general guidance for the surveillance, testing, and maintenance of this system.

SINGH, G.

2000-05-01T23:59:59.000Z

279

Idaho Site's Cold War Cleanup Takes Center Stage in Publication |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Site's Cold War Cleanup Takes Center Stage in Publication Site's Cold War Cleanup Takes Center Stage in Publication Idaho Site's Cold War Cleanup Takes Center Stage in Publication January 22, 2013 - 12:00pm Addthis The Society of American Military Engineers focuses on the Idaho site’s environmental cleanup in the latest issue of its publication, The Military Engineer. This photo of the Engineering Test Reactor, which was decommissioned and demolished at the Idaho site, is featured in the story. The Society of American Military Engineers focuses on the Idaho site's environmental cleanup in the latest issue of its publication, The Military Engineer. This photo of the Engineering Test Reactor, which was decommissioned and demolished at the Idaho site, is featured in the story. The Society of American Military Engineers highlights this Idaho site photo on the cover of the latest issue of its publication, The Military Engineer. In the photo, work is under way to move spent nuclear fuel from wet storage to the safer, more permanent alternative of dry storage.

280

Idaho Site's Cold War Cleanup Takes Center Stage in Publication |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Idaho Site's Cold War Cleanup Takes Center Stage in Publication Idaho Site's Cold War Cleanup Takes Center Stage in Publication Idaho Site's Cold War Cleanup Takes Center Stage in Publication January 22, 2013 - 12:00pm Addthis The Society of American Military Engineers focuses on the Idaho site’s environmental cleanup in the latest issue of its publication, The Military Engineer. This photo of the Engineering Test Reactor, which was decommissioned and demolished at the Idaho site, is featured in the story. The Society of American Military Engineers focuses on the Idaho site's environmental cleanup in the latest issue of its publication, The Military Engineer. This photo of the Engineering Test Reactor, which was decommissioned and demolished at the Idaho site, is featured in the story. The Society of American Military Engineers highlights this Idaho site photo on the cover of the latest issue of its publication, The Military Engineer. In the photo, work is under way to move spent nuclear fuel from wet storage to the safer, more permanent alternative of dry storage.

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

Cold Bay Hot Spring Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

Cold Bay Hot Spring Geothermal Area Cold Bay Hot Spring Geothermal Area Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Geothermal Resource Area: Cold Bay Hot Spring Geothermal Area Contents 1 Area Overview 2 History and Infrastructure 3 Regulatory and Environmental Issues 4 Exploration History 5 Well Field Description 6 Geology of the Area 7 Geofluid Geochemistry 8 NEPA-Related Analyses (0) 9 Exploration Activities (0) 10 References Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"TERRAIN","zoom":6,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"300px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":55.2217,"lon":-162.412,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

282

U-257: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

57: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny 57: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service U-257: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service September 12, 2012 - 6:00am Addthis PROBLEM: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service PLATFORM: ColdFusion 10, 9.0.2, 9.0.1, 9.0, 8.0.1, and 8.0 for Windows, Macintosh and UNIX ABSTRACT: Adobe ColdFusion is prone to a remote denial-of-service vulnerability. reference LINKS: Adobe Security bulletins and advisories Adobe Vulnerability identifier: APSB12-21 SecurityTracker Alert ID: 1027516 Bugtraq ID: 55499 CVE-2012-2048 IMPACT ASSESSMENT: Medium Discussion: Adobe has released a security hotfix for ColdFusion 10 and earlier versions for Windows, Macintosh and UNIX. This update resolves a vulnerability which

283

DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment October 3, 2011 - 12:00pm Addthis DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment CARLSBAD, N.M. - The Waste Isolation Pilot Plant (WIPP) received its

284

U-257: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny 7: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service U-257: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service September 12, 2012 - 6:00am Addthis PROBLEM: Adobe ColdFusion Unspecified Bug Lets Remote Users Deny Service PLATFORM: ColdFusion 10, 9.0.2, 9.0.1, 9.0, 8.0.1, and 8.0 for Windows, Macintosh and UNIX ABSTRACT: Adobe ColdFusion is prone to a remote denial-of-service vulnerability. reference LINKS: Adobe Security bulletins and advisories Adobe Vulnerability identifier: APSB12-21 SecurityTracker Alert ID: 1027516 Bugtraq ID: 55499 CVE-2012-2048 IMPACT ASSESSMENT: Medium Discussion: Adobe has released a security hotfix for ColdFusion 10 and earlier versions for Windows, Macintosh and UNIX. This update resolves a vulnerability which

285

V-045: Adobe ColdFusion Lets Local Users Bypass Sandbox Restrictions |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

5: Adobe ColdFusion Lets Local Users Bypass Sandbox 5: Adobe ColdFusion Lets Local Users Bypass Sandbox Restrictions V-045: Adobe ColdFusion Lets Local Users Bypass Sandbox Restrictions December 12, 2012 - 2:00am Addthis PROBLEM: Adobe ColdFusion Lets Local Users Bypass Sandbox Restrictions PLATFORM: ColdFusion 10, 9.0.2, 9.0.1 and 9.0 for Windows, Macintosh and UNIX ABSTRACT: A vulnerability was reported in Adobe ColdFusion. REFERENCE LINKS: SecurityTracker Alert ID: 1027853 Adobe Vulnerability identifier: APSB12-26 CVE 2012-5675 IMPACT ASSESSMENT: High DISCUSSION: Adobe has released a security hotfix for ColdFusion 10 and earlier versions for Windows, Macintosh and UNIX. This hotfix resolves a vulnerability which could result in a sandbox permissions violation in a shared hosting environment. Adobe recommends users update their product installation using

286

T-698: Adobe ColdFusion Input Validation Flaw in 'probe.cfm' Permits  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8: Adobe ColdFusion Input Validation Flaw in 'probe.cfm' 8: Adobe ColdFusion Input Validation Flaw in 'probe.cfm' Permits Cross-Site Scripting Attacks T-698: Adobe ColdFusion Input Validation Flaw in 'probe.cfm' Permits Cross-Site Scripting Attacks August 22, 2011 - 3:54pm Addthis PROBLEM: A vulnerability was reported in Adobe ColdFusion. A remote user can conduct cross-site scripting attacks. PLATFORM: Adobe ColdFusion 9.x ABSTRACT: Adobe ColdFusion Input Validation Flaw in 'probe.cfm' Permits Cross-Site Scripting Attacks. reference LINKS: Adobe Vulnerability Report Adobe Security Bulletin ColdFusion Support SecurityTracker Alert ID: 1025957 IMPACT ASSESSMENT: Medium Discussion: The 'probe.cfm' script does not properly filter HTML code from user-supplied input in the 'name' parameter before displaying the input. A remote user can create a specially crafted URL that, when loaded by a

287

T-698: Adobe ColdFusion Input Validation Flaw in 'probe.cfm' Permits  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

8: Adobe ColdFusion Input Validation Flaw in 'probe.cfm' 8: Adobe ColdFusion Input Validation Flaw in 'probe.cfm' Permits Cross-Site Scripting Attacks T-698: Adobe ColdFusion Input Validation Flaw in 'probe.cfm' Permits Cross-Site Scripting Attacks August 22, 2011 - 3:54pm Addthis PROBLEM: A vulnerability was reported in Adobe ColdFusion. A remote user can conduct cross-site scripting attacks. PLATFORM: Adobe ColdFusion 9.x ABSTRACT: Adobe ColdFusion Input Validation Flaw in 'probe.cfm' Permits Cross-Site Scripting Attacks. reference LINKS: Adobe Vulnerability Report Adobe Security Bulletin ColdFusion Support SecurityTracker Alert ID: 1025957 IMPACT ASSESSMENT: Medium Discussion: The 'probe.cfm' script does not properly filter HTML code from user-supplied input in the 'name' parameter before displaying the input. A remote user can create a specially crafted URL that, when loaded by a

288

DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment October 3, 2011 - 12:00pm Addthis DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment DOE ACHIEVES MAJOR COLD WAR LEGACY WASTE CLEANUP MILESTONE: Waste Isolation Pilot Plant Receives 10,000th Shipment CARLSBAD, N.M. - The Waste Isolation Pilot Plant (WIPP) received its

289

Exponential coefficient plots for identifying cement channels from temperature logs  

SciTech Connect

One technique for identifying a cement channel in such a well is to inject cold water or diesel fuel for a period of time, followed by recording shut-in temperature profiles after the injection ceases. Qualitative judgements are made from the appearance of these profiles in order to confirm the existence of a channel. Alternatively, by processing the temperature logs mathematically, an exponential coefficient may be calculated and plotted against depth. This exponential coefficient plot is very responsive to the presence of cold fluid in a cement channel, and confirms a channel's existence quantitatively and conclusively. This paper discusses use of such a mathematical relationship in a predictive fashion for identifying injection zones. Methods are given for deriving and plotting the exponential coefficients from temperature logs of a well placed on cold fluid injection. Three examples are presented on the application of exponential coefficient plots to actual field logs for confirmation of suspected channels and for assessment of the uniformity of cement bonding.

Barnette, J.C.; Lanuke, E.W.; Carlson, N.R.

1984-01-01T23:59:59.000Z

290

DISSERTATION APPROVAL The abstract and dissertation of Richard Nathan Mishra-Linger for the Doctor  

E-Print Network (OSTI)

campus. You made my time here enjoyable. Thanks to my spiritual family at West Valley Community Church

Sheard, Tim

291

Near-IR [Fe II] emission diagnostics applied to cold disk winds in young stars  

E-Print Network (OSTI)

We investigate the emissivity properties of the main near-IR transitions of the Fe+ ion in the conditions prevailing in the inner regions of jets from young stars, based on a simplified 16-level atom model. We present new diagnostic diagrams involving prominent near-IR line ratios that allow us to constrain the electronic density, temperature, and Fe gas phase abundance ratio, independently of the heating process. Comparison with recent near-IR observations of a sample of HH objects indicates gas phase Fe abundances ranging from 15-50 % up to 100 % of the solar value in agreement with the moderate depletions previously derived from optical line ratios or shock models. Hence, it appears that Fe-bearing dust is efficiently destroyed in stellar jets. We then use our Fe+ emissivity model to predict near-IR [Fe II] emission maps for self-similar, cold MHD disk wind models. We show that observations in [Fe II] with AMBER on the VLTI could severely constrain the MHD solution and the inner launch radius of the jet. We also compare theoretical predictions with recent observations in the near-IR [Fe II] lines of the L1551-IRS5 and DG Tau jets. The cold disk wind model reproduces quite well the two velocity components observed at -100 and -300 km/s, although the high velocity component appears overestimated by a factor of 1.5 in the DG Tau jet. However, the model predicts too little emission at intermediate-velocity and insufficient densities. Denser disk winds with stronger heating at the jet base, which have been invoked for optical jets, also appear needed in younger, embedded Class I jet sources.

N. Pesenti; C. Dougados; S. Cabrit; D. O'Brien; P. Garcia; J. Ferreira

2003-10-16T23:59:59.000Z

292

Ultra-cold atomic matter and quantum information My group studies various many-body states of ultra cold atoms and  

E-Print Network (OSTI)

Ultra-cold atomic matter and quantum information My group studies various many-body states of ultra cold atoms and investigates possible applications towards quantum computation. Two subjects studies of nematic Mott states and dimerized valence bond states of spin-one atoms. We also have

Plotkin, Steven S.

293

A stubbornly large mass of cold dust in the ejecta of Supernova 1987A  

E-Print Network (OSTI)

We present new Herschel photometric and spectroscopic observations of Supernova 1987A, carried out in 2012. Our dedicated photometric measurements provide new 70 micron data and improved imaging quality at 100 and 160 micron compared to previous observations in 2010. Our Herschel spectra show only weak CO line emission, and provide an upper limit for the 63 micron [O I] line flux, eliminating the possibility that line contaminations distort the previously estimated dust mass. The far-infrared spectral energy distribution (SED) is well fitted by thermal emission from cold dust. The newly measured 70 micron flux constrains the dust temperature, limiting it to nearly a single temperature. The far-infrared emission can be fitted by 0.5+-0.1 Msun of amorphous carbon, about a factor of two larger than the current nucleosynthetic mass prediction for carbon. The observation of SiO molecules at early and late phases suggests that silicates may also have formed and we could fit the SED with a combination of 0.3 Msun of...

Matsuura, M; Barlow, M J; Babler, B; Baes, M; Meixner, M; Cernicharo, Jose; Clayton, Geoff C; Dunne, L; Fransson, C; Fritz, Jacopo; Gear, Walter; Gomez, H L; Groenewegen, M A T; Indebetouw, R; Ivison, R J; Jerkstrand, A; Lebouteiller, V; Lim, T L; Lundqvist, P; Pearson, C P; Roman-Duval, J; Royer, P; Staveley-Smith, Lister; Swinyard, B M; van Hoof, P A M; van Loon, J Th; Verstappen, Joris; Wesson, Roger; Zanardo, Giovanna; Blommaert, Joris A D L; Decin, Leen; Reach, W T; Sonneborn, George; Van de Steene, Griet C; Yates, Jeremy A

2014-01-01T23:59:59.000Z

294

The production of advanced glass ceramic HLW forms using cold crucible induction melter  

SciTech Connect

Cold Crucible Induction Melters (CCIM) will favorably change how High-Level radioactive Waste (from nuclear fuel recovery) is treated in a near future. Unlike the existing Joule-Heated Melters (JHM) currently in operation for the glass-based immobilization of High-Level Waste (HLW), CCIM offers unique material features that will increase melt temperatures, increase throughput, increase mixing, increase loading in the waste form, lower melter foot prints, eliminate melter corrosion and lower costs. These features not only enhance the technology for producing HLW forms, but also provide advantageous attributes to the waste form by allowing more durable alternatives to glass. It is concluded that glass ceramic waste forms that are tailored to immobilize fission products of HLW can be can be made from the HLW processed with the CCIM. The advantageous higher temperatures reached with the CCIM and unachievable with JHM allows the lanthanides, alkali, alkaline earths, and molybdenum to dissolve into a molten glass. Upon controlled cooling they go into targeted crystalline phases to form a glass ceramic waste form with higher waste loadings than achievable with borosilicate glass waste forms. Natural cooling proves to be too fast for the formation of all targeted crystalline phases.

Rutledge, V.J.; Maio, V. [Idaho National Laboratory: P.O. Box 1625, Idaho Falls, ID, 83415-2110 (United States)

2013-07-01T23:59:59.000Z

295

The role of stratosphere-troposphere coupling in the occurrence of extreme winter cold spells over northern Europe  

E-Print Network (OSTI)

the stratosphere, the MPI Earth System Model. Geopotential height anomalies leading to cold air outbreaks leave

Gerber, Edwin

296

The Role of Eddies in the Southern Ocean Temperature Response to the Southern Annular Mode  

E-Print Network (OSTI)

of the model show an increase in eddy kinetic energy that peaks 2­3 yr after a positive anomaly in the SAM this temperature response. This response is also evident in the coarse-resolution implementation of the model to cold SST anomalies at these latitudes. Further north, between 258 and 458S, easterly wind anomalies

Stevens, David

297

DUST TEMPERATURES IN THE INFRARED SPACE OBSERVATORY ATLAS OF BRIGHT SPIRAL GALAXIES1  

E-Print Network (OSTI)

DUST TEMPERATURES IN THE INFRARED SPACE OBSERVATORY ATLAS OF BRIGHT SPIRAL GALAXIES1 George J Space Observatory Atlas of Bright Spiral Galaxies. For the 71 galaxies where we had complete 60­180 lm Facility (IRTF) with IRAS far-infrared data to conclude that spiral galaxies have cold dust components

Joseph, Robert D.

298

Possibility of buffer-gas cooling of paramagnetic carbon to ultracold temperatures R. V. Krems,1,  

E-Print Network (OSTI)

. The temperature of the buffer-gas varies between tens of mK and 1 K. The atoms cooled can be trapped ground state 3 P0 atoms cannot be magnetically trapped. The trapping of carbon atoms at ultra- cold

Krems, Roman

299

Effects of Thermal Exposure and Test Temperature on Structure Evolution and Hardness/Viscosity  

E-Print Network (OSTI)

Effects of Thermal Exposure and Test Temperature on Structure Evolution and Hardness/Viscosity the physical and mechanical properties (i.e., viscosity, flow, and fracture). In some cases, the thermal coating techniques (e.g., high velocity oxygen fuel (HVOF), plasma spray, cold spray, etc.) have been used

Rollins, Andrew M.

300

Detectable Changes in the Frequency of Temperature Extremes SIMONE MORAK AND GABRIELE C. HEGERL  

E-Print Network (OSTI)

Detectable Changes in the Frequency of Temperature Extremes SIMONE MORAK AND GABRIELE C. HEGERL of hot and cold extremes over land can be explained by climate variability or whether they show a detectable response to external influences. The authors analyze changes in the frequency of moderate-to-extreme

Hegerl, Gabriele Clarissa "Gabi"

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


301

Cold nuclear fusion in metallic hydrogen and normal metals  

Science Journals Connector (OSTI)

The rate of nuclear fusion from tunneling in very dense metallic hydrogen in the core of Jupiter is calculated to be 10-50 per hydrogen-deuterium pair per second. It is estimated that the width of the fusion barrier for deuterium in palladium or a similar metal must be reduced to, of order, 0.1 A? for the fusion rate to be 10-25 per deuterium per second. If this scale is achieved, the ratios of various nuclear reaction rates will be very different for cold versus thermonuclear fusion.

Charles J. Horowitz

1989-10-01T23:59:59.000Z

302

The stresses in the reels of cold reduction mills  

Science Journals Connector (OSTI)

An investigation into the stress distribution in the reels of a cold reduction mill is described. The results indicated that the distribution is nearly axially symmetrical, and it was concluded that Inglis's theory of wire winding might be adapted to give a reasonable approximation of the stresses over the surface of a reel drum in the form of a thick-walled tube. This has been confirmed by the direct measurement of tangential stress in the lap of a coil next to the reel.

R B Sims; J A Place

1953-01-01T23:59:59.000Z

303

Nonlinear lower hybrid oscillations in a cold viscous plasma  

SciTech Connect

An analytical description of nonlinear lower hybrid oscillations in a cold quasi-neutral plasma in the presence of viscosity is presented in one spatial dimension by using Lagrangian variables. By treating viscosity coefficients of the electron and ion fluids as inversely proportional to their respective densities, an exact solution is obtained. It is found that the damping rate of such oscillations is directly proportional to the effective viscosity coefficients of electron and ion fluids. A possible implication of such solutions is briefly outlined.

Maity, Chandan; Chakrabarti, Nikhil [Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata-700064 (India)

2011-12-15T23:59:59.000Z

304

Thermal, thermoelectric, and cathode poisoning effects in cold fusion experiments  

SciTech Connect

This paper reports on an unsuccessful attempt to repeat the observations by Fleischmann and Pons of cold nuclear fusion in deuterium-charged palladium; no excess heat is found, nor is any gamma or neutron activity identified. Peltier heating at the palladium/platinum junction is investigated, but no effects are seen; the possibility remains, however, that a large Peltier coefficient may arise for deuterium concentrations that render the palladium-deuterium semiconducting. Finally, the effects of poisoning the palladium with cyanide were investigated.

Keesing, R.G.; Greenhow, R.C.; Cohler, M.D. (Univ. of York, Dept. of Physics, Heslington, York Y01 5DD (GB)); McQuillan, A.J. (Univ. of Otago, Dept. of Chemistry, Dunedin (NZ))

1991-03-01T23:59:59.000Z

305

Ultra-cold methods of atomic hydrogen electron spin separation  

SciTech Connect

Two ultra-cold methods of atomic hydrogen electron spin separation for polarized jet targets and sources will be described and compared. Both of them use a helium-film coated cell at 300 mK located in a high magnetic field. The first one, microwave driven extraction, uses a 212 GHz microwave system and 7.5 T magnetic field with a high uniformity ({Delta}B/B{approx} 10{sup {minus}5}). The second method employs the gradient of a high magnetic field for the state separation and beam formation. Experimental results from the two methods will be presented.

Luppov, V.G.; Kaufman, W.A.; Krisch, A.D. [Univ. of Michigan, Ann Arbor, MI (United States)] [and others

1995-04-01T23:59:59.000Z

306

Miniature quadrupole mass spectrometer having a cold cathode ionization source  

DOE Patents (OSTI)

An improved quadrupole mass spectrometer is described. The improvement lies in the substitution of the conventional hot filament electron source with a cold cathode field emitter array which in turn allows operating a small QMS at much high internal pressures then are currently achievable. By eliminating of the hot filament such problems as thermally "cracking" delicate analyte molecules, outgassing a "hot" filament, high power requirements, filament contamination by outgas species, and spurious em fields are avoid all together. In addition, the ability of produce FEAs using well-known and well developed photolithographic techniques, permits building a QMS having multiple redundancies of the ionization source at very low additional cost.

Felter, Thomas E. (Livermore, CA)

2002-01-01T23:59:59.000Z

307

Cold matter effects and quarkonium production at RHIC and LHC  

SciTech Connect

In this work we investigate two cold matter effects in J/{Psi} and {Upsilon} production in nuclear collisions at RHIC and LHC, namely the shadowing effect and nuclear absorption. We characterize these effects by estimating the rapidity dependence of some nuclear ratios in pA and AA collisions at RHIC and LHC, R{sub pA} = d{sigma}{sub pA}(J/{Psi},{Upsilon})/Ad{sigma}{sub pp}(J/{Psi},{Upsilon}) and R{sub AA} = d{sigma}{sub AA}(J/{Psi},{Upsilon})/A{sup 2}d{sigma}{sub pp}(J/{Psi},{Upsilon}).

Dos Santos, G. S.; Mariotto, C. B. [Instituto de Matematica, Estatistica e Fisica, Universidade Federal do Rio Grande, Caixa Postal 474, CEP 96203-900, Rio Grande, RS (Brazil); Goncalves, V. P. [Instituto de Fisica e Matematica, Universidade Federal de Pelotas, Caixa Postal 354, CEP 96010-090, Pelotas, RS (Brazil)

2013-03-25T23:59:59.000Z

308

Low temperature irradiation tests on  

E-Print Network (OSTI)

discharge machining in KEK Keep defects by cold-work Size: 1mmx1mmx70mm Voltage taps with 45mm spacing 4 irradiated) Wire EDM Irradiation sample · 5N aluminum + Cu, Mg with 10 % cold work · RRR=450 ·1.35m@RT, 3 @10

McDonald, Kirk

309

V-197: Adobe ColdFusion 10 WebSockets Security Bypass Vulnerability |  

NLE Websites -- All DOE Office Websites (Extended Search)

7: Adobe ColdFusion 10 WebSockets Security Bypass Vulnerability 7: Adobe ColdFusion 10 WebSockets Security Bypass Vulnerability V-197: Adobe ColdFusion 10 WebSockets Security Bypass Vulnerability July 11, 2013 - 6:00am Addthis PROBLEM: A vulnerability has been reported in Adobe ColdFusion PLATFORM: The vulnerability is reported in version 10 for Windows, Macintosh, and Linux ABSTRACT: The vulnerability is caused due to an unspecified error and can be exploited to invoke public methods on ColdFusion Components (CFC) using WebSockets REFERENCE LINKS: Secunia Advisory SA54024 Adobe Security Bulletin APSB13-19 Stackoverflow.com CVE-2013-3350 IMPACT ASSESSMENT: High DISCUSSION: The hotfix resolves a vulnerability that could permit an attacker to invoke public methods on ColdFusion Components (CFC) using WebSockets IMPACT: Security Bypass

310

R-Cold: Proposed Penalty (2013-CE-5354) | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

R-Cold: Proposed Penalty (2013-CE-5354) R-Cold: Proposed Penalty (2013-CE-5354) R-Cold: Proposed Penalty (2013-CE-5354) March 26, 2013 DOE alleged in a Notice of Proposed Civil Penalty that R-Cold, Inc. failed to certify a variety of walk-in cooler or freezer components as compliant with the applicable energy conservation standards. DOE regulations require a manufacturer (which includes importers) to submit reports certifying that its products have been tested and meet the applicable energy conservation standards. This civil penalty notice advises the company of the potential penalties and DOE's administrative process, including the company's right to a hearing. R-Cold: Proposed Penalty (2013-CE-5354) More Documents & Publications R-Cold: Order (2013-CE-5354) North Star Refrigerator: Proposed Penalty (2013-CE-5355)

311

V-063: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

3: Adobe ColdFusion Bugs Let Remote Users Gain Access and 3: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain Information V-063: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain Information January 7, 2013 - 1:00am Addthis PROBLEM: Adobe ColdFusion Bugs Let Remote Users Gain Access and Obtain Information PLATFORM: ColdFusion 10, 9.0.2, 9.0.1 and 9.0 for Windows, Macintosh and UNIX ABSTRACT: Adobe has identified three vulnerabilities affecting ColdFusion for Windows, Macintosh and UNIX REFERENCE LINKS: Adobe Security Bulletin APSA13-01 SecurityTracker Alert ID: 1027938 CVE-2013-0625 CVE-2013-0629 CVE-2013-0631 IMPACT ASSESSMENT: High DISCUSSION: A remote user can bypass authentication and take control of the target system [CVE-2013-0625]. Systems with password protection disabled or with no password set are affected.

312

U-060: Security update: Hotfix available for ColdFusion | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

0: Security update: Hotfix available for ColdFusion 0: Security update: Hotfix available for ColdFusion U-060: Security update: Hotfix available for ColdFusion December 13, 2011 - 6:40am Addthis PROBLEM: Security update: Hotfix available for ColdFusion. PLATFORM: ColdFusion 9.0.1, 9.0, 8.0.1 and 8.0 for Windows, Macintosh and UNIX ABSTRACT: Vulnerabilities have been identified in ColdFusion 9.0.1 and earlier versions for Windows, Macintosh and UNIX. These vulnerabilities could lead to a cross-site scripting attack. Adobe categorizes this as an important update and recommends that users apply the latest update for their product installation.This update resolves a cross-site scripting vulnerability in cfform tag (CVE-2011-2463). This update resolves a cross-site scripting vulnerability in RDS (CVE-2011-4368).

313

2D modeling of electromagnetic waves in cold plasmas  

SciTech Connect

The consequences of sheath (rectified) electric fields, resulting from the different mobility of electrons and ions as a response to radio frequency (RF) fields, are a concern for RF antenna design as it can cause damage to antenna parts, limiters and other in-vessel components. As a first step to a more complete description, the usual cold plasma dielectric description has been adopted, and the density profile was assumed to be known as input. Ultimately, the relevant equations describing the wave-particle interaction both on the fast and slow timescale will need to be tackled but prior to doing so was felt as a necessity to get a feeling of the wave dynamics involved. Maxwell's equations are solved for a cold plasma in a 2D antenna box with strongly varying density profiles crossing also lower hybrid and ion-ion hybrid resonance layers. Numerical modelling quickly becomes demanding on computer power, since a fine grid spacing is required to capture the small wavelengths effects of strongly evanescent modes.

Crombé, K. [Laboratory for Plasma Physics, Association EURATOM - Belgian State Trilateral Euregio Cluster, Renaissancelaan 30 Avenue de la Renaissance, B-1000 Brussels, Belgium and Department of Applied Physics, Ghent University, Sint-Pietersnieuwstraat 41 B4, B (Belgium); Van Eester, D.; Koch, R.; Kyrytsya, V. [Laboratory for Plasma Physics, Association EURATOM - Belgian State Trilateral Euregio Cluster, Renaissancelaan 30 Avenue de la Renaissance, B-1000 Brussels (Belgium)

2014-02-12T23:59:59.000Z

314

Surface physics with cold and thermal neutron reflectometry  

SciTech Connect

Three aspects of the research project Surface physics with cold and ultracold neutron reflectometry'' were stressed during the present first year: (1) Setup of the reflectometer facility at the research reactor of the Rhode Island Nuclear Science Center. The installation provides a narrow pencil beam'' analyzed by time of flight using a chopper system. Following beam characterization and a test measurement of the total cross section of copper single crystal first reflectivity measurements are currently performed using a supermirror. (2) Design stud for the ultracold neutron imaging system, with involvement of the relevant industry. Bids are available for several components indicating that it will be very difficult to build the entire system unless further funds become available. (3) Analysis of features of neutron reflection from surfaces with special emphasis on the effect of surface roughness both on the specular beam and the diffusely reflected and refracted intensity. Previous theoretical studies were supplemented by further numerical calculations of diffuse scattering distributions using different models. Application of ultracold and cold neutron reflectometry to the study of liquid-vapor phase transition were discussed. The theoretical work also includes the development of tentative ideas for novel fundamental physics experiments.

Steyerl, A.

1991-11-01T23:59:59.000Z

315

Three Minutes to Midnight: Civil Defense in the Late Cold War Period.  

E-Print Network (OSTI)

??This thesis examines civil defense in the United States under the Nixon, Carter and Reagan administrations. Throughout the late Cold War period civil defense policy… (more)

Donelson, Brendan

2014-01-01T23:59:59.000Z

316

E-Print Network 3.0 - arabidopsis cold shock Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

for Integrated Genome Biology, University of California at Riverside Collection: Biotechnology 2 Published online 19 June 2002 Molecular genetic analysis of cold-regulated gene...

317

E-Print Network 3.0 - army cold regions Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

Branch, Aberdeen... June 2004 Abstract Particlessubstrate interactions during the cold-gas dynamic-spray deposition Source: Grujicic, Mica - Department of Mechanical...

318

Menace of Power: Russia-NATO Relations in the Post-Cold War Era.  

E-Print Network (OSTI)

??This thesis explores Russia-NATO relations after the Cold War. It focuses on how state power and perceived threat affect balance of power in Europe. The… (more)

Chen, Ping-Kuei

2008-01-01T23:59:59.000Z

319

Physics Analyses in the Design of the HFIR Cold Neutron Source  

SciTech Connect

Physics analyses have been performed to characterize the performance of the cold neutron source to be installed in the High Flux Isotope Reactor at the Oak Ridge National Laboratory in the near future. This paper provides a description of the physics models developed, and the resulting analyses that have been performed to support the design of the cold source. These analyses have provided important parametric performance information, such as cold neutron brightness down the beam tube and the various component heat loads, that have been used to develop the reference cold source concept.

Bucholz, J.A.

1999-09-27T23:59:59.000Z

320

The characterization of Csp (Cold Shock Protein) from the Antarctic archaeon, Methanogenium frigidum.  

E-Print Network (OSTI)

??Cold shock proteins (Csp) are small acidic proteins that fold into ?-barrel structures with five anti-parallel ?-strands and are involved in essential cellular processes. Upon… (more)

Giaquinto, Laura

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Behaviour of {sup 222}Rn at cryogenic temperatures  

SciTech Connect

The behaviour of radon in a cryogenic environment is still not well known. Therefore, measured radon emanation rates at room temperature cannot be translated directly to cryogenic conditions. In this work we present a table-top experiment that provides a direct way of determining the behaviour of {sup 222}Rn in cryogenic argon and helium at liquid argon temperature. We observe an increased emanation rate of {sup 222}Rn atoms to liquid argon compared to the rate observed to helium at room temperature. We also find that {sup 222}Rn atoms stick to cold metal surfaces when emanated to helium at liquid argon temperature but partly distribute in the liquid when emanated to cryogenic argon. Concluding, we give possible interpretations of the observations.

Lindemann, Sebastian; Simgen, Hardy [Max-Planck-Institut fuer Kernphysik, Postfach 103980, D-69029 Heidelberg (Germany); Zuzel, Grzegorz [Jagellonian University, Institute of Physics, Reymonta 4, 30-059 Krakow (Poland)

2011-04-27T23:59:59.000Z

322

Use of Rapid Temperature Measurements at a 2-Meter Depth to Augment Deeper  

Open Energy Info (EERE)

Use of Rapid Temperature Measurements at a 2-Meter Depth to Augment Deeper Use of Rapid Temperature Measurements at a 2-Meter Depth to Augment Deeper Temperature Gradient Drilling Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: Use of Rapid Temperature Measurements at a 2-Meter Depth to Augment Deeper Temperature Gradient Drilling Abstract Temperature gradient drilling has historically been a key tool in the exploration for geothermal resources in the Great Basin, USA, but regulatory, environmental, and accessibility issues, as well as the expense of drilling, are increasingly limiting its use. In cases where thermal groundwater is not overlain by near-surface cold aquifers, it is possible to augment temperature gradient drilling with temperatures measured from a 2-meter depth. We discuss the development of a rapid, efficient, and

323

Evaluation of fracture properties of cold deformed 450 YS TMCP steel  

SciTech Connect

In the present study, 450 YS TMCP steel of 20 mm thickness was used to characterize the cold deformation capacity and respective mechanical and fracture toughness properties. The present work is part of a joint research project by the Dillinger Huette and GKSS Research Center on the cold deformation, weldability and various fracture aspects of the 450 YS TMCP steel. The paper, however, only refers to the investigation on cold deformation and respective fracture characteristics of the 450 YS TMCP steel. In particular, it is aimed at understanding the effect of cold deformation and anisotropy on the fracture behavior through tensile, Charpy-V notch impact, CTOD and wide-plate testing as well as via microstructural examination. As part of the program, tests were performed at RT, {minus}40 C and {minus}80 C on specimens machined from plates in six conditions, namely: (1) as-rolled (0% CD), (2) 5% cold deformed (pre-strained in tension) (5% CD), (3) 10% cold deformed (pre-strained in tension) (10% CD), (4) as-rolled + SR (580 C for 1 hour) (0% CD + SR), (5) 5% cold deformed + SR (5% CD + SR) and (6) 10% cold deformed + SR (10% CD + SR). An increasing degree of cold deformation increased both YS and TS combined with a reduction in ductility and toughness. The shift of the CVN transition curve was of the same order as experienced for normalized and Q+T steels. Thanks to the excellent as-rolled properties, even after 10% cold deformation, impact requirements were satisfied at least down to {minus}50 C. The YS to TS ratio was increased and was highest with the specimen axis parallel to the rolling and straining direction. The SR helped to regain a ratio of 0.90 even for 10% cold deformation.

Dobi, D.; Kocak, M.; Petrovski, B.I. [GKSS Research Center, Geesthacht (Germany). Inst. of Materials Research; Hanus, F. [Dillinger Huette AG, Saar (Germany). Welding Lab.

1994-12-31T23:59:59.000Z

324

The field test and optimization of a solar assisted heat pump system for space heating in extremely cold area  

Science Journals Connector (OSTI)

Abstract As a kind of sustainable energy source, solar energy is becoming highly valued. Especially in extremely cold areas, the amount of energy consumed for space heating is huge, and the conventional coal heating has polluted the environment seriously, therefore solar heating is significant on both energy and environment conservation. In this study, a solar assisted heat pump (SAHP) system was investigated for space heating under extremely cold climatic condition. The system principle and operation modes was presented, and then the project profile and design procedure were introduced, and finally the system performance was evaluated by field test on typical winter days and modeling via TRNSYS simulation environment. The results show that the solar collector efficiency was 51%, and the solar fraction can reach 66% in December. Economic analysis was also performed and the heating expenses for the present SAHP system was 18 RMB/m2. Finally, the temperatures of solar energy for both direct heating and storage and only for direct heating (T1A and T1B) were simulated and optimized, which have important significance on the operation time of different operation modes.

Huifang Liu; Yiqiang Jiang; Yang Yao

2014-01-01T23:59:59.000Z

325

Cold test plan for the Old Hydrofracture Facility tank contents removal project, Oak Ridge National Laboratory, Oak Ridge, Tennessee  

SciTech Connect

This Old Hydrofracture Facility (OHF) Tanks Contents Removal Project Cold Test Plan describes the activities to be conducted during the cold test of the OHF sluicing and pumping system at the Tank Technology Cold Test Facility (TTCTF). The TTCTF is located at the Robotics and Process Systems Complex at the Oak Ridge National Laboratory (ORNL). The cold test will demonstrate performance of the pumping and sluicing system, fine-tune operating instructions, and train the personnel in the actual work to be performed. After completion of the cold test a Technical Memorandum will be prepared documenting completion of the cold test, and the equipment will be relocated to the OHF site.

NONE

1997-11-01T23:59:59.000Z

326

SAVANNAH RIVER SITE COLD WAR HISTORIC PROPERTY DOCUMENTATION  

NLE Websites -- All DOE Office Websites (Extended Search)

WAR HISTORIC PROPERTY DOCUMENTATION WAR HISTORIC PROPERTY DOCUMENTATION NARRATIVE AND PHOTOGRAPHY CMX AND TNX SAVANNAH RIVER'S PILOT PLANTS Aiken County, South Carolina SAVANNAH RIVER SITE COLD WAR HISTORIC PROPERTY DOCUMENTATION CMX AND TNX CMX AND TNX SA SA V V ANNAH RIVER'S ANNAH RIVER'S PILOT PLANTS PILOT PLANTS Aiken County, South Carolina NARRATIVE AND PHOTOGRAPHY ii ABSTRACT This documentation was prepared in accordance with a Memorandum of Agreement (MOA) signed by the Department of Energy-Savannah River (DOE-SR) and the South Carolina Historic Preservation Office (SHPO) dated February 27, 2003, as well as the Consolidated MOA of August 2004. The MOA stipulated a thematic study and photographic documentation of 679-T and 678-T, known respectively as the CMX and TNX buildings. Initially, this area was called the CMX-TNX

327

Nebraska city station emdash hot to cold esp conversion  

SciTech Connect

Omaha Public Power District's Nebraska City Unit 1, is a 585 MW net coal fueled power plant which burns low-sulfur Powder River Basin coal. The unit was originally designed and constructed with a fully enclosed hot-side rigid frame electrostatic precipitator. However, the original precipitator was unable to reliably and continuously maintain stack opacity and particulate emissions levels while operating at high loads. Therefore the hot-side precipitator was modified internally and converted to cold-side operation. The unit's four regenerative air heaters were relocated to an area underneath the boiler backpass and the ductwork was modified extensively. In addition, significant internal precipitator modifications were made. This paper describes the conversion design, construction, and resulting performance improvements.

Duncan, B.L.; Ferguson, A.W.; Wicina, R.C. (Black and Veatch Consulting Engineers, Kansas City, MO (United States)); Campbell, D.B.; Kotan, R.M.; Roth, K.A. (Omaha Public Power District, NE (United States))

1990-01-01T23:59:59.000Z

328

On plane waves in diluted relativistic cold plasmas  

E-Print Network (OSTI)

We briefly report on some exact results [G. Fiore, arXiv:1312.4665 preprint, to appear in J. Phys. A] regarding plane waves in a relativistic cold plasma. If the plasma, initially at rest, is reached by a transverse plane electromagnetic travelling-wave, then its motion has a very simple dependence on this wave in the limit of zero density, otherwise can be determined by an iterative procedure whose accuracy decreases with time or the plasma density. Thus one can describe in particular the impact of a very intense and short laser pulse onto a plasma and determine conditions for the "slingshot effect" [G. Fiore, R. Fedele, U. De Angelis, arXiv:1309.1400 preprint] to occur. The motion in vacuum of a charged test particle subject to a wave of the same kind is also determined, for any initial velocity.

Gaetano Fiore

2014-05-01T23:59:59.000Z

329

COLD DUST BUT WARM GAS IN THE UNUSUAL ELLIPTICAL GALAXY NGC 4125  

SciTech Connect

Data from the Herschel Space Observatory have revealed an unusual elliptical galaxy, NGC 4125, which has strong and extended submillimeter emission from cold dust but only very strict upper limits to its CO and H I emission. Depending on the dust emissivity, the total dust mass is 2-5 × 10{sup 6} M {sub ?}. While the neutral gas-to-dust mass ratio is extremely low (<12-30), including the ionized gas traced by [C II] emission raises this limit to <39-100. The dust emission follows a similar r {sup 1/4} profile to the stellar light and the dust to stellar mass ratio is toward the high end of what is found in nearby elliptical galaxies. We suggest that NGC 4125 is currently in an unusual phase where evolved stars produced in a merger-triggered burst of star formation are pumping large amounts of gas and dust into the interstellar medium. In this scenario, the low neutral gas-to-dust mass ratio is explained by the gas being heated to temperatures ?10{sup 4} K faster than the dust is evaporated. If galaxies like NGC 4125, where the far-infrared emission does not trace neutral gas in the usual manner, are common at higher redshift, this could have significant implications for our understanding of high redshift galaxies and galaxy evolution.

Wilson, C. D.; Cridland, A.; Foyle, K.; Parkin, T. J.; Cooper, E. Mentuch [Department of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4M1 (Canada)] [Department of Physics and Astronomy, McMaster University, Hamilton, ON L8S 4M1 (Canada); Roussel, H. [Institut d'Astrophysique de Paris, Université Pierre et Marie Curie, CNRS UMR 7095, F-75014 Paris (France)] [Institut d'Astrophysique de Paris, Université Pierre et Marie Curie, CNRS UMR 7095, F-75014 Paris (France); Sauvage, M.; Lebouteiller, V.; Madden, S. [Laboratoire AIM, CEA/DSM-CNRS-Université Paris Diderot DAPNIA/Service d'Astrophysique, Bât. 709, CEA-Saclay, F-91191 Gif-sur-Yvette Cedex (France)] [Laboratoire AIM, CEA/DSM-CNRS-Université Paris Diderot DAPNIA/Service d'Astrophysique, Bât. 709, CEA-Saclay, F-91191 Gif-sur-Yvette Cedex (France); Smith, M. W. L.; Gear, W. [School of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA (United Kingdom)] [School of Physics and Astronomy, Cardiff University, The Parade, Cardiff CF24 3AA (United Kingdom); Baes, M.; De Looze, I. [Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281 S9, B-9000 Gent (Belgium)] [Sterrenkundig Observatorium, Universiteit Gent, Krijgslaan 281 S9, B-9000 Gent (Belgium); Bendo, G. [UK ALMA Regional Centre Node, Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL (United Kingdom)] [UK ALMA Regional Centre Node, Jodrell Bank Center for Astrophysics, School of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL (United Kingdom); Boquien, M.; Boselli, A.; Ciesla, L. [Aix-Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, F-13388 Marseille (France)] [Aix-Marseille Université, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR 7326, F-13388 Marseille (France); Clements, D. L. [Astrophysics Group, Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2AZ (United Kingdom)] [Astrophysics Group, Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2AZ (United Kingdom); Cooray, A. [Department of Physics and Astronomy, University of California, Irvine, CA 92697 (United States)] [Department of Physics and Astronomy, University of California, Irvine, CA 92697 (United States); Galametz, M. [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom)] [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom); and others

2013-10-20T23:59:59.000Z

330

Processing of analogues of plume fallout in cold regions of Enceladus by energetic electrons  

E-Print Network (OSTI)

Enceladus, a small icy moon of Saturn, is one of the most remarkable bodies in the solar system. This moon is a geologically active object, and despite the lower temperatures on most of its surface, the geothermally heated south polar region presents geysers that spouts a plume made of water (approximately ninety percent), carbon dioxide, methane, ammonia, and methanol, among other molecules. Most of the upward-moving particles do not have the velocity to escape from the gravitational influence of the moon and fall back to the surface. The molecules in the ice are continuously exposed to ionizing radiation, such as UV and X-rays photons, cosmic rays, and electrons. Over time, the ionizing radiation promotes molecular bond rupture, destroying and also forming molecules, radicals, and fragments. We analyse the processing of an ice mixture analogue to the Enceladus fallout ice in cold resurfaced areas (north pole) by 1 keV electrons. The main goal is to search for complex species that have not yet been detected ...

Bergantini, A; Nair, B G; Mason, N J; Fraser, H J

2014-01-01T23:59:59.000Z

331

The genome of the polar eukaryotic microalga Coccomyxa subellipsoidea reveals traits of cold adaptation  

SciTech Connect

Background Little is known about the mechanisms of adaptation of life to the extreme environmental conditions encountered in polar regions. Here we present the genome sequence of a unicellular green alga from the division chlorophyta, Coccomyxa subellipsoidea C-169, which we will hereafter refer to as C-169. This is the first eukaryotic microorganism from a polar environment to have its genome sequenced. Results The 48.8 Mb genome contained in 20 chromosomes exhibits significant synteny conservation with the chromosomes of its relatives Chlorella variabilis and Chlamydomonas reinhardtii. The order of the genes is highly reshuffled within synteny blocks, suggesting that intra-chromosomal rearrangements were more prevalent than inter-chromosomal rearrangements. Remarkably, Zepp retrotransposons occur in clusters of nested elements with strictly one cluster per chromosome probably residing at the centromere. Several protein families overrepresented in C. subellipsoidae include proteins involved in lipid metabolism, transporters, cellulose synthases and short alcohol dehydrogenases. Conversely, C-169 lacks proteins that exist in all other sequenced chlorophytes, including components of the glycosyl phosphatidyl inositol anchoring system, pyruvate phosphate dikinase and the photosystem 1 reaction center subunit N (PsaN). Conclusions We suggest that some of these gene losses and gains could have contributed to adaptation to low temperatures. Comparison of these genomic features with the adaptive strategies of psychrophilic microbes suggests that prokaryotes and eukaryotes followed comparable evolutionary routes to adapt to cold environments.

Blanc, Guillaume; Agarkova, Irina; Grimwood, Jane; Kuo, Alan; Brueggeman, Andrew; Dunigan, David D.; Gurnon, James; Ladunga, Istvan; Lindquist, Erika; Lucas, Susan; Pangilinan, Jasmyn; Proschold, Thomas; Salamov, Asaf; Schmutz, Jeremy; Weeks, Donald; Tamada, Takashi; Lomsadze, Alexandre; Borodovsky, Mark; Claverie, Jean-Michel; Grigoriev, Igor V.; Van Etten, James L.

2012-02-13T23:59:59.000Z

332

Near-IR [Fe II] emission diagnostics applied to cold disk winds in young stars  

E-Print Network (OSTI)

We investigate the emissivity properties of the main near-IR transitions of the Fe+ ion in the conditions prevailing in the inner regions of jets from young stars, based on a simplified 16-level atom model. We present new diagnostic diagrams involving prominent near-IR line ratios that allow us to constrain the electronic density, temperature, and Fe gas phase abundance ratio, independently of the heating process. Comparison with recent near-IR observations of a sample of HH objects indicates gas phase Fe abundances ranging from 15-50 % up to 100 % of the solar value in agreement with the moderate depletions previously derived from optical line ratios or shock models. Hence, it appears that Fe-bearing dust is efficiently destroyed in stellar jets. We then use our Fe+ emissivity model to predict near-IR [Fe II] emission maps for self-similar, cold MHD disk wind models. We show that observations in [Fe II] with AMBER on the VLTI could severely constrain the MHD solution and the inner launch radius of the jet. W...

Pesenti, N; Cabrit, S; O'Brien, D; García, P; Ferreira, J

2003-01-01T23:59:59.000Z

333

The effects of unburned hydrocarbon recirculation on ignition and combustion during diesel engine cold starts  

Science Journals Connector (OSTI)

Abstract The exhaust gases contain large amounts of unburned hydrocarbons during cranking without combustion. The effects of unburned hydrocarbon recirculation on ignition and combustion during diesel engine cold starts were investigated using both experiments and simulations. Experiments were conducted on a single-cylinder DI (direct injection) diesel engine equipped with a common rail injection system. The amount of unburned hydrocarbon recirculation was jointly controlled by an EGR (exhaust gas recirculation) valve and a back pressure valve. The investigation showed that optimal opening of recirculation control valves allowed the first firing cycle to be advanced from 19 to 6 and reduced the duration of heavy smoke emission (opacity > 50%) by 77%. However, the enhancement to the in-cylinder LTR (low temperature reaction) decreased gradually as the amount of unburned hydrocarbon recirculation increased. An analysis of the chemical kinetics showed that the reaction intermediates present in unburned hydrocarbons, such as ketohydroperoxides, were the most significant factor in enhancing the LTR during non-firing cycles. At the same time, the substantial heat capacity of unburned hydrocarbons suppressed the LTR for higher recirculation rates.

Yi Cui; Haiyong Peng; Kangyao Deng; Lei Shi

2014-01-01T23:59:59.000Z

334

Prediction of wax buildup in 24 inch cold, deep sea oil loading line  

SciTech Connect

When designing pipelines for cold environments, it is important to know how to predict potential problems due to wax deposition on the pipeline's inner surface. The goal of this work was to determine the rate of wax buildup and the maximum, equlibrium wax thickness for a North Sea field loading line. The experimental techniques and results used to evaluate the waxing potential of the crude oil (B) are described. Also, the theoretic model which was used for predicting the maximum wax deposit thickness in the crude oil (B) loading pipeline at controlled temperatures of 40 F (4.4 C) and 100 F (38 C), is illustrated. Included is a recommendation of a procedure for using hot oil at the end of a tanker loading period in order to dewax the crude oil (B) line. This technique would give maximum heating of the pipeline and should be followed by shutting the hot oil into the pipeline at the end of the loading cycle which will provide a hot oil soaking to help soften existing wax. 14 references.

Asperger, R.G.; Sattler, R.E.; Tolonen, W.J.; Pitchford, A.C.

1981-10-01T23:59:59.000Z

335

MAGNETOHYDRODYNAMIC SIMULATIONS OF THE FORMATION OF COLD FRONTS IN CLUSTERS OF GALAXIES: EFFECTS OF ANISOTROPIC VISCOSITY  

SciTech Connect

We carried out three-dimensional magnetohydrodynamic simulations to study the effects of plasma viscosity on the formation of sharp discontinuities of density and temperature distributions, cold fronts, in clusters of galaxies. By fixing the gravitational potential that confines the cool, dense plasma in a moving subcluster, we simulated its interaction with the hot, lower density plasma around the subcluster. At the initial state, the intracluster medium (ICM) is assumed to be threaded by uniform magnetic fields. The enhancement of plasma viscosity along the direction of magnetic fields is incorporated as anisotropic viscosity depending on the direction of magnetic fields. We found that the Kelvin-Helmholtz instability at the surface of the subcluster grows even in models with anisotropic viscosity, because its effects on the velocity shear across the magnetic field lines are suppressed. We also found that magnetic fields around the interface between the subcluster and ICM are amplified even in the presence of viscosity, while magnetic fields behind the subcluster are amplified up to {beta}{sup -1} {approx} 0.01 in models with viscosity, whereas they are amplified up to {beta}{sup -1} {approx} 0.1 in models without viscosity, where {beta} is the ratio of gas pressure to magnetic pressure.

Suzuki, Kentaro; Ogawa, Takayuki; Matsumoto, Yosuke; Matsumoto, Ryoji, E-mail: suzukikn@astro.s.chiba-u.ac.jp, E-mail: ogawa@astro.s.chiba-u.ac.jp, E-mail: ymatumot@astro.s.chiba-u.ac.jp, E-mail: matumoto@astro.s.chiba-u.ac.jp [Department of Physics, Graduate School of Science, Chiba University, Inage-ku, Chiba 263-8522 (Japan)

2013-05-10T23:59:59.000Z

336

The Production of Advanced Glass Ceramic HLW Forms using Cold Crucible Induction Melter  

SciTech Connect

Cold Crucible Induction Melters (CCIMs) will favorably change how High-Level radioactive Waste (from nuclear fuel recovery) is treated in the 21st century. Unlike the existing Joule-Heated Melters (JHMs) currently in operation for the glass-based immobilization of High-Level Waste (HLW), CCIMs offer unique material features that will increase melt temperatures, increase throughput, increase mixing, increase loading in the waste form, lower melter foot prints, eliminate melter corrosion and lower costs. These features not only enhance the technology for producing HLW forms, but also provide advantageous attributes to the waste form by allowing more durable alternatives to glass. This paper discusses advantageous features of the CCIM, with emphasis on features that overcome the historical issues with the JHMs presently utilized, as well as the benefits of glass ceramic waste forms over borosilicate glass waste forms. These advantages are then validated based on recent INL testing to demonstrate a first-of-a-kind formulation of a non-radioactive ceramic-based waste form utilizing a CCIM.

Veronica J Rutledge; Vince Maio

2013-10-01T23:59:59.000Z

337

Calculation of the Ostriker-Vishniac Effect in Cold Dark Matter Models  

E-Print Network (OSTI)

We present a new derivation of the cosmic microwave background anisotropy spectrum from the Ostriker-Vishniac effect for an open, flat, or closed Universe, and calculate the anisotropy expected in cold dark-matter (CDM) models. We provide simple semi-analytic fitting formulas for the Vishniac power spectrum that can be used to evaluate the expected anisotropy in CDM models for any arbitrary ionization history. In a flat Universe, CDM models normalized to cluster abundances produce rms temperature anisotropies of 0.8--2.4 $\\mu$K on arcminute angular scales for a constant ionization fraction of unity, whereas an ionization fraction of 0.2 yields rms anisotropies of 0.3--0.8 $\\mu$K. In an open and/or high-baryon-density Universe, the level of anisotropy is somewhat higher. The signal in some of these models may be detectable with planned interferometry experiments. The damping of the acoustic peaks in the primary-anisotropy spectrum at degree angular scales depends primarily on the optical depth and only secondarily on the epoch of reionization. On the other hand, the amplitude of Ostriker-Vishniac anisotropies depends sensitively on the epoch of reionization. Therefore, when combined with the estimate of the reionization optical depth provided by maps of degree-scale anisotropies, the Ostriker-Vishniac effect can provide a unique probe of the epoch of reionization.

A. H. Jaffe; M. Kamionkowski

1998-06-18T23:59:59.000Z

338

Spin-Orbit Suppression of Cold Inelastic Collisions of Aluminum and Helium  

E-Print Network (OSTI)

We present a quantitative study of suppression of cold inelastic collisions by the spin-orbit interaction. We prepare cold ensembles of >10[superscript 11] Al([superscript 2]P[subscript 1/2]) atoms via cryogenic buffer-gas ...

Connolly, Colin Bryant

339

A quenchable superhard carbon phase synthesized by cold compression of carbon nanotubes  

E-Print Network (OSTI)

A quenchable superhard carbon phase synthesized by cold compression of carbon nanotubes Zhongwu) A quenchable superhard high-pressure carbon phase was synthe- sized by cold compression of carbon nanotubes. Carbon nanotubes were placed in a diamond anvil cell, and x-ray diffraction measure- ments were conducted

Downs, Robert T.

340

Cold Event in the South Atlantic Bight During Summer of 2003: Model Simulations and Implications.  

E-Print Network (OSTI)

1 Cold Event in the South Atlantic Bight During Summer of 2003: Model Simulations and Implications forcing mechanisms during the cold event of 2003 in the South Atlantic Bight (SAB). Updated mass field boundary conditions from basin-scale HYCOM simulations are tested to provide off-shore and upstream

North Carolina at Chapel Hill, University of

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

A Review of Cold Fronts with Prefrontal Troughs and Wind Shifts DAVID M. SCHULTZ  

E-Print Network (OSTI)

A Review of Cold Fronts with Prefrontal Troughs and Wind Shifts DAVID M. SCHULTZ Cooperative with a pressure trough and a distinct wind shift at the surface. Many cold fronts, however, do not conform to this model--time series at a single surface station may possess a pressure trough and wind shift in the warm

Schultz, David

342

Investigation of focusing of relativistic electron and positron bunches moving in cold plasma. Final report  

SciTech Connect

This document is the final report on a project to study focusing effects of relativistic beams of electrons and positrons interacting with a cold plasma. The authors consider three different models for the overdense cold plasma - electron bunch interaction. They look at coulomb effects, wakefield effects, bunch parameters, and the effects of trains of pulses on focusing properties.

Amatuni, A.Ts.; Elbakian, S.S.; Khachatryan, A.G.; Sekhpossian, E.V.

1995-03-01T23:59:59.000Z

343

Mark Solovey; Hamilton Cravens, eds. Cold War Social Science: Knowledge Production, Liberal Democracy, and Human Nature.  

E-Print Network (OSTI)

Mark Solovey; Hamilton Cravens, eds. Cold War Social Science: Knowledge Production, Liberal Nature by Mark Solovey; Hamilton Cravens Review by: Greg Eghigian Isis, Vol. 104, No. 2 (June 2013), pp. BUERKI Mark Solovey; Hamilton Cravens (Editors). Cold War Social Science: Knowledge Production, Liberal

Solovey, Mark

344

2013 Radiological Monitoring Results Associated with the Advanced Test Reactor Complex Cold Waste Pond  

SciTech Connect

This report summarizes radiological monitoring performed of the Idaho National Laboratory Site’s Advanced Test Reactor Complex Cold Waste wastewater prior to discharge into the Cold Waste Pond and of specific groundwater monitoring wells associated with the Industrial Wastewater Reuse Permit (#LA-000161-01, Modification B). All radiological monitoring is performed to fulfill Department of Energy requirements under the Atomic Energy Act.

Mike Lewis

2014-02-01T23:59:59.000Z

345

Cold Electrostatic Ion Cyclotron Waves for Preionization and IBW Launching in LHD *  

E-Print Network (OSTI)

CESICW (Cold Electrostatic Ion Cyclotron Wave) for heating the core of LHD with the folded waveguide research. Electron cyclotron heating (ECH) is a well­known effective tool for plasma production­ 1 ­ Cold Electrostatic Ion Cyclotron Waves for Preionization and IBW Launching in LHD * Masayuki

346

Cold Electrostatic Ion Cyclotron Waves for Preionization and IBW Launching in LHD*  

E-Print Network (OSTI)

CESICW (Cold Electrostatic Ion Cyclotron Wave) for heating the core of LHD with the folded waveguide research. Electron cyclotron heating (ECH) is a well-known effective tool for plasma production- 1 - Cold Electrostatic Ion Cyclotron Waves for Preionization and IBW Launching in LHD* Masayuki

347

PHYSICAL REVIEW A 83, 022713 (2011) Cold and ultracold NH-NH collisions in magnetic fields  

E-Print Network (OSTI)

.022713 PACS number(s): 34.50.Cx, 37.10.Mn, 37.10.Pq I. INTRODUCTION Cold (T mK challenges is to produce molecules in the ultra- cold regime, which requires a second-stage cooling method

348

Cold Electron Source with an Electron Multiplier Illuminated by Ultraviolet Photons  

Science Journals Connector (OSTI)

The most common electron source for EI is a hot cathode which creates a stream of electrons via thermionic emission from a metal surface. ... The result shows that an MCP cold electron source with a UV diode as the photon generator has a number of advantages over thermionic emission sources or alternate cold electron sources. ...

Hyun Sik Kim; Seung Yong Kim; Mo Yang

2012-03-12T23:59:59.000Z

349

New carbon cone nanotip for use in a highly coherent cold field emission electron microscope  

E-Print Network (OSTI)

1 New carbon cone nanotip for use in a highly coherent cold field emission electron Jeanne Marvig, BP 94347, TOULOUSE, Cedex 4, FRANCE Abstract A new cathode for cold-field emission gun using a pyrolytic carbon-cone supported onto a carbon nanotube as the electron emitting tip has been

Paris-Sud XI, Université de

350

Recovery Act Workers Accomplish Cleanup of Second Cold War Coal Ash Basin |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Accomplish Cleanup of Second Cold War Coal Ash Accomplish Cleanup of Second Cold War Coal Ash Basin Recovery Act Workers Accomplish Cleanup of Second Cold War Coal Ash Basin American Recovery and Reinvestment Act workers recently cleaned up a second basin containing coal ash residues from Cold War operations at the Savannah River Site (SRS). About $24 million from the Recovery Act funded the environmental restoration project, allowing SRS to complete the project at least five years ahead of schedule. The work is part of a larger Recovery Act cleanup of the P Area scheduled for completion by the end of September 2011. Recovery Act Workers Accomplish Cleanup of Second Cold War Coal Ash Basin More Documents & Publications Recovery Act Workers Complete Environmental Cleanup of Coal Ash Basin Recovery Act Workers Add Time Capsule Before Sealing Reactor for Hundreds

351

CTAX: the US/Japan Cold Neutron Triple-Axis Spectromete at HFIR | ORNL  

NLE Websites -- All DOE Office Websites (Extended Search)

CTAX-US/Japan Cold Neutron Triple-Axis Spectrometer CTAX-US/Japan Cold Neutron Triple-Axis Spectrometer CTAX US/Japan Cold Neutron Triple-Axis Spectrometer (CG-4C). (larger image) The U.S.-Japan Cold Neutron Triple-Axis Spectrometer (CTAX) is a conventional triple-axis spectrometer with variable incident energy and variable monochromator-sample and sample-analyzer distances. The cold guide 4 bender and guide hall shielding reduce background levels at CG-4C, and the 15-cm-tall guide profile is well exploited by CG-4C's vertically focusing monochromator (PG 002). To enhance accommodation of strong magnetic fields at the sample position and to simplify future polarization analysis, the amount of ferromagnetic material has been minimized in the construction of this instrument. CG-4C is a collaboration of Oak Ridge National Laboratory, the Neutron

352

The Cold War ends ... now what? | Y-12 National Security Complex  

NLE Websites -- All DOE Office Websites (Extended Search)

The Cold War ends ... now ... The Cold War ends ... now ... The Cold War ends ... now what? Posted: February 7, 2013 - 6:07pm | Y-12 Report | Volume 9, Issue 2 | 2013 Y-12 machined precise finished surfaces (mirrors) in the 1970s. Precision machining capabilities like this helped give the U.S. an edge during the Cold War. If you met former Soviet leader Mikhail Gorbachev, what would you ask him? Y-12 Facility Specialist Martha Polston had the rare opportunity to meet Gorbachev a decade after the Soviet Union had formally dissolved in 1991 and the Cold War had ended. "Meeting him face to face was a true privilege," she said. "The intensity of his personality is commanding, yet he is approachable. He seemed to genuinely embrace his role as a 'statesman' after having to let go of the 'power' of world leader."

353

Recovery Act Workers Accomplish Cleanup of Second Cold War Coal Ash Basin |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Recovery Act Workers Accomplish Cleanup of Second Cold War Coal Ash Recovery Act Workers Accomplish Cleanup of Second Cold War Coal Ash Basin Recovery Act Workers Accomplish Cleanup of Second Cold War Coal Ash Basin American Recovery and Reinvestment Act workers recently cleaned up a second basin containing coal ash residues from Cold War operations at the Savannah River Site (SRS). About $24 million from the Recovery Act funded the environmental restoration project, allowing SRS to complete the project at least five years ahead of schedule. The work is part of a larger Recovery Act cleanup of the P Area scheduled for completion by the end of September 2011. Recovery Act Workers Accomplish Cleanup of Second Cold War Coal Ash Basin More Documents & Publications EIS-0220: Final Environmental Impact Statement EIS-0220: Final Environmental Impact Statement

354

Yeast and Temperature  

NLE Websites -- All DOE Office Websites (Extended Search)

Yeast and Temperature Yeast and Temperature Name: Alyssaaum Location: N/A Country: N/A Date: N/A Question: How does temperature affect yeast? Replies: Dear Alyssa, At low temperatures (0-10 C) yeast will not grow, but not die either. At temperatures 10-37 C yeast will grow and multiply, faster at higher temperatures with an optimal growth at 30 or 37 C (that depends on the species). At higher temperature the cells become stressed, meaning that their content becomes damaged and which can be repaired to some degree. At high temperatures (>50 C) the cells die. The bacteria can survive freezing under certain conditions. When baking bread all yeast dies during the process. Dr. Trudy Wassenaar yeast is a unique type of fungi that grows quickly by rapid cell division. It grows best at about 100 degrees fahrenheit, colder will cause it to go dormant, much warmer could kill it

355

Cold Fusion Production and Decay of Neutron-Deficient Isotopes of Dubnium and Development of Extraction Systems for Group V Elements  

E-Print Network (OSTI)

of transfermium elements in cold fusion reactions." Physical1. Introduction Part I: Cold Fusion Production and Decay of1.2. Hot versus Cold Fusion 1.3. Excitation Functions 1.3.1.

Gates, Jacklyn M.

2008-01-01T23:59:59.000Z

356

Gas flow in vertical slots with large horizontal temperature differences  

SciTech Connect

Perfect gas exact solutions to the steady Navier--Stokes equations are given for laminar convective motion in open and closed vertical slots with large temperature differences using Sutherland law transport properties. The solutions are valid a few slot widths away from the ends in the asymptotic region where the opposite hot and cold wall boundary layers are fully merged. It is found that the static pressure (in the closed slot) and temperature and velocity distributions (in all cases) are very sensitive to property variations, even though the heat flux may not be. We observe the net horizontal and vertical heat fluxes to be the same as those obtained from the Boussinesq equations. Comparisons with constant property solutions and the well-known Boussinesq limiting solution for small temperature differences are given for examples using air.

Chenoweth, D.R.; Paolucci, S.

1985-08-01T23:59:59.000Z

357

Cold-Climate Solar Domestic Water Heating Systems: Life-Cycle Analyses and Opportunities for Cost Reduction  

SciTech Connect

Conference paper regarding research in potential cost-savings measures for cold-climate solar domestic water hearing systems.

Burch, J.; Salasovich, J.; Hillman, T.

2005-12-01T23:59:59.000Z

358

6, 13011320, 2006 Temperature  

E-Print Network (OSTI)

ACPD 6, 1301­1320, 2006 Temperature climatology and trend estimates over Durban, South Africa H and Physics Discussions Temperature climatology and trend estimates in the UTLS region as observed over Commons License. 1301 #12;ACPD 6, 1301­1320, 2006 Temperature climatology and trend estimates over Durban

Boyer, Edmond

359

Thermoelectric Temperature Control  

E-Print Network (OSTI)

the controller can supply the power required to bring the device to the desired temperature and maintain a stableNOTE 201TM TECHNICAL Optimizing Thermoelectric Temperature Control Systems #12;2 May 1995 92 of applications that require extremely stable temperature control. System design can be complex, but improved

Saffman, Mark

360

A COLD COMPLEX CHEMISTRY TOWARD THE LOW-MASS PROTOSTAR B1-b: EVIDENCE FOR COMPLEX MOLECULE PRODUCTION IN ICES  

SciTech Connect

Gas-phase complex organic molecules have been detected toward a range of high- and low-mass star-forming regions at abundances which cannot be explained by any known gas-phase chemistry. Recent laboratory experiments show that UV irradiation of CH{sub 3}OH-rich ices may be an important mechanism for producing complex molecules and releasing them into the gas phase. To test this ice formation scenario, we mapped the B1-b dust core and nearby protostar in CH{sub 3}OH gas using the IRAM 30 m telescope to identify locations of efficient non-thermal ice desorption. We find three CH{sub 3}OH abundance peaks tracing two outflows and a quiescent region on the side of the core facing the protostar. The CH{sub 3}OH gas has a rotational temperature of {approx}10 K at all locations. The quiescent CH{sub 3}OH abundance peak and one outflow position were searched for complex molecules. Narrow, 0.6-0.8 km s{sup -1} wide, HCOOCH{sub 3} and CH{sub 3}CHO lines originating in cold gas are clearly detected, CH{sub 3}OCH{sub 3} is tentatively detected, and C{sub 2}H{sub 5}OH and HOCH{sub 2}CHO are undetected toward the quiescent core, while no complex molecular lines were found toward the outflow. The core abundances with respect to CH{sub 3}OH are {approx}2.3% and 1.1% for HCOOCH{sub 3} and CH{sub 3}CHO, respectively, and the upper limits are 0.7%-1.1%, which is similar to most other low-mass sources. The observed complex molecule characteristics toward B1-b and the pre-dominance of HCO-bearing species suggests a cold ice (below 25 K, the sublimation temperature of CO) formation pathway followed by non-thermal desorption through, e.g., UV photons traveling through outflow cavities. The observed complex gas composition together with the lack of any evidence of warm gas-phase chemistry provides clear evidence of efficient complex molecule formation in cold interstellar ices.

Oeberg, Karin I. [Harvard-Smithsonian Center for Astrophysics, MS 42, 60 Garden Street, Cambridge, MA 02138 (United States); Bottinelli, Sandrine [Centre d'Etude Spatiale des Rayonnements, 9 avenue du Colonel Roche, BP 4346, 31028 Toulouse Cedex 4 (France); Joergensen, Jes K. [Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen, Oester Voldgade 5-7, 1350 Copenhagen K. (Denmark); Van Dishoeck, Ewine F. [Leiden Observatory, Leiden Sterrewacht, P.O. Box 9513, 2300 RA Leiden (Netherlands)

2010-06-10T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Accelerator-based fusion with a low temperature target  

SciTech Connect

Neutron generators are in use in a number of scientific and commercial endeavors. They function by triggering fusion reactions between accelerated ions (usually deuterons) and a stationary cold target (e.g., containing tritium). This setup has the potential to generate energy. It has been shown that if the energy transfer between injected ions and target electrons is sufficiently small, net energy gain can be achieved. Three possible avenues are: (a) a hot target with high electron temperature, (b) a cold non-neutral target with an electron deficiency, or (c) a cold target with a high Fermi energy. A study of the third possibility is reported in light of recent research that points to a new phase of hydrogen, which is hypothesized to be related to metallic hydrogen. As such, the target is considered to be composed of nuclei and delocalized electrons. The electrons are treated as conduction electrons, with the average minimum excitation energy being approximately equal to 40% of the Fermi energy. The Fermi energy is directly related to the electron density. Preliminary results indicate that if the claimed electron densities in the new phase of hydrogen were achieved in a target, the energy transfer to electrons would be small enough to allow net energy gain.

Phillips, R. E.; Ordonez, C. A. [Department of Physics, University of North Texas, Denton, Texas 76203-5017 (United States)

2013-04-19T23:59:59.000Z

362

New cold nuclear fusion theory and experimental tests  

Science Journals Connector (OSTI)

A theory of neutron-induced tritium-deuterium fusion at room temperature is developed, based entirely on previously measured cross-sections of known nuclear reactions. The fusion process involves self-sustaini...

Yeong E. Kim

1990-12-01T23:59:59.000Z

363

Cold collisions between argon atoms and hydrogen molecules  

Science Journals Connector (OSTI)

Collisions between argon atoms and hydrogen molecules are investigated at very low temperatures. Quantum-mechanical calculations are performed using two different potential-energy surfaces. Rate coefficients for all possible combinations of initial vibrational and rotational level have been computed in the limit of zero temperature. Resonant and quasiresonant behavior is found using both potential-energy surfaces. The results are interpreted and estimates are made of the reliability of the calculations.

J. C. Flasher and R. C. Forrey

2002-02-13T23:59:59.000Z

364

A Cold Frontal Rainband Observed during the LANDES-FRONTS 84 Experiment: Mesoscale and Small-Scale Structure Inferred from Dual-Doppler Radar Analysis.  

Science Journals Connector (OSTI)

This paper presents the kinematic structure of a cold frontal rainband associated with a secondary cold front which moved over southwest of France on 4 June 1984.

Y. Lemaitre; G. Scialom; P. Amayenc

1989-07-01T23:59:59.000Z

365

Temperature compensated photovoltaic array  

DOE Patents (OSTI)

A temperature compensated photovoltaic module comprises a series of solar cells having a thermally activated switch connected in parallel with several of the cells. The photovoltaic module is adapted to charge conventional batteries having a temperature coefficient differing from the temperature coefficient of the module. The calibration temperatures of the switches are chosen whereby the colder the ambient temperature for the module, the more switches that are on and form a closed circuit to short the associated solar cells. By shorting some of the solar cells as the ambient temperature decreases, the battery being charged by the module is not excessively overcharged at lower temperatures. PV module is an integrated solution that is reliable and inexpensive. 2 figs.

Mosher, D.M.

1997-11-18T23:59:59.000Z

366

Nonlocal control of electron temperature in short direct current glow discharge plasma  

SciTech Connect

To demonstrate controlling the electron temperature in nonlocal plasma, experiments have been performed on a short (without positive column) dc glow discharge with a cold cathode by applying different voltages to the conducting discharge wall. The experiments have been performed for low-pressure noble gas discharges. The applied voltage can modify trapping the energetic electrons emitted from the cathode sheath and arising from the atomic and molecular processes in the plasma within the device volume. This phenomenon results in the energetic electrons heating the slow plasma electrons, which consequently modifies the electron temperature. Furthermore, a numerical model of the discharge has demonstrated the electron temperature modification for the above case.

Demidov, V. I. [Department of Optics and Spectroscopy, St. Petersburg State University, St. Petersburg 199034 (Russian Federation); International Laboratory “Nonlocal Plasma in Nanotechnology and Medicine”, ITMO University, Kronverkskiy pr. 49, St. Petersburg 197101 (Russian Federation); Department of Physics and Astronomy, West Virginia University, Morgantown, West Virginia 26506 (United States); Kudryavtsev, A. A.; Stepanova, O. M. [Department of Optics and Spectroscopy, St. Petersburg State University, St. Petersburg 199034 (Russian Federation); Kurlyandskaya, I. P. [International Laboratory “Nonlocal Plasma in Nanotechnology and Medicine”, ITMO University, Kronverkskiy pr. 49, St. Petersburg 197101 (Russian Federation); St. Petersburg University of State Fire Service of EMERCOM RF, Murmansk Branch, Murmansk 183040 (Russian Federation)

2014-09-15T23:59:59.000Z

367

Zakharov-Kuznetsov equation in a magnetized plasma with two temperature superthermal electrons  

SciTech Connect

A nonlinear Zakharov-Kuznetsov (ZK) equation for ion-acoustic solitary waves (IASWs) in a magnetized plasmas containing kappa distributed cold and hot electrons is derived by using reductive perturbation method. From the solution of ZK equation, the characteristics of IASWs have been studied under the influence of various plasma parameters. Existence domain of physical parameters is determined. It has been observed that the present plasma system supports the existence of both positive as well as negative potential solitons. The combined effects of cold to hot electron temperature ratio (?), density ratio of cold electrons to ions (f), superthermality of cold and hot electrons (?{sub c},?{sub h}), strength of magnetic field (via ?{sub i}), and obliqueness (?) significantly influence the profile of IASWs. The physical parameters play a great role to modify the width and amplitude of the solitary structures. The stability analysis is also presented in this investigation and parametric range is determined to check the presence of stable and unstable solitons. The findings of this study are important to the physics of electrostatic wave structures in the Saturn's magnetosphere where two temperature electrons with kappa distribution exist.

Saini, N. S., E-mail: nssaini@yahoo.com; Chahal, B. S., E-mail: chahal-bs@rediffmail.com [Department of Physics, Guru Nanak Dev University, Amritsar 143005 (India); Bains, A. S., E-mail: bainsphysics@yahoo.co.in [Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, School of Space Science and Physics, Shandong University at Weihai, 264209 Weihai (China); Bedi, C., E-mail: bedi-chanchal@yahoo.co.in [Department of Physics, Lyallpur Khalsa College, Jalandhar 144001 (India)

2014-02-15T23:59:59.000Z

368

Fine structure changing collisions between ultra-cold lithium atoms  

SciTech Connect

The authors have designed and assembled an experiment to determine the rate of fine structure changing collisions between ultra-cold ({approximately} 1 mK) laser cooled Li atoms. The atoms are confined by a magneto-optical trap which consists of six polarized orthogonal laser beams tuned slightly below the 2S{sub 1/2}-2P{sub 3/2} resonance frequency of lithium. Measurements show that about 2 x 10{sup 7} atoms are confined to a roughly spherical region of about 1 mm in diameter. Fine structure changing collisions occur when an atom in the 2S{sub 1/2} state and an atom in the 2P{sub 3/2} state collide, and yield an atom in the 2S{sub 1/2} state and an atom in the 2P{sub 1/2} state, with an energy release corresponding to about 10 GHz. This energy adds kinetic energy to the atoms in the trap, and knocks atoms out of the trap. The authors have devised a method to measure the rate of this collisional loss mechanism. The method uses a laser diode and a dye laser to selectively photo-ionize the 2P{sub 1/2} atoms, and a channeltron particle multipiler measures the rate of ion formation. We will report the progress of this experiment.

Anderson, B.P.; Ritchie, N.W.M.; Xiao, Y.Y. [and others

1992-12-01T23:59:59.000Z

369

A new explanation to the cold nuclear matter effects in heavy ion collisions  

E-Print Network (OSTI)

The J/Psi cross section ratios of p-A/p-p under different collision energy is calculated with cold nuclear matter effects redefined in this paper. The advantage of these new definitions is that all cold nuclear matter effects have clear physical origins.The radios are compared with the corresponding experiment data and that calculated with classic nuclear effects. The ratios calculated with new definitions can reproduce almost all existing J/Psi measurements in p-A collisions more accuratly than that calculated with classic nuclear effects. Hence, this paper presents a new approach to explain cold nuclear effects in the hardproduction of quarkonium.

Liu, Zhi-Feng

2014-01-01T23:59:59.000Z

370

Hydrohalite in cold sea ice: Laboratory observations of single crystals, surface accumulations, and migration rates under a temperature  

E-Print Network (OSTI)

April 2009; published 17 July 2009. [1] When NaCl precipitates out of a saturated solution, it forms it instead precipitates as the dihydrate ``hydrohalite,'' NaCl Á 2H2O. When sea ice is cooled, hydrohalite begins to precipitate within brine inclusions at about �23°C. In this work, hydrohalite crystals

Warren, Stephen

371

Energy analysis of a personalized ventilation system in a cold climate: influence of the supplied air temperature  

E-Print Network (OSTI)

tropics. Proceedings of Healthy Buildings 2003, Singapore,Proceedings of Healthy Buildings 2000 Vol. 2, pp. 523-528.

Schiavon, Stefano; Melikov, Arsen

2008-01-01T23:59:59.000Z

372

Daily Temperature Lag  

NLE Websites -- All DOE Office Websites (Extended Search)

Daily Temperature Lag Daily Temperature Lag Name: Shyammayi Status: teacher Grade: K-2 Country: Mauritius Date: Summer 2011 Question: At what time of the day is the temperature hottest? At what time of the day is the temperature coldest? Replies: In general, the hottest part of the day is late afternoon. The sun has passed its peak in the sky but still heats the Earth up until very late in the afternoon. The lowest temperatures are around dawn. Earth has had all night to get rid of the day's heat by radiating it into space. After sunrise, temperatures begin to climb. This can be changed by local storms, sea breezes or mountain breezes and even monsoon winds. Hope this helps. R. W. "Bob" Avakian Instructor Arts and Sciences/CRC Oklahoma State Univ. Inst. of Technology Shyammayi

373

Automatic temperature adjustment apparatus  

DOE Patents (OSTI)

An apparatus for increasing the efficiency of a conventional central space heating system is disclosed. The temperature of a fluid heating medium is adjusted based on a measurement of the external temperature, and a system parameter. The system parameter is periodically modified based on a closed loop process that monitors the operation of the heating system. This closed loop process provides a heating medium temperature value that is very near the optimum for energy efficiency.

Chaplin, James E. (66 Overlook Rd., Bloomingdale, NJ 07403)

1985-01-01T23:59:59.000Z

374

Effects of strain amplitude and temperature on the damping capacity of an Fe-19Mn alloy with different microstructures  

SciTech Connect

The influences of strain amplitude (10{sup -5}-10{sup -4}) and temperature (25 deg. C-500 deg. C) on the internal friction of a cold-drawn and solution treated Fe-19Mn alloy were investigated. The internal friction was measured using reversal torsion pendulum and multifunction internal friction equipment. The microstructure was observed using scanning electron microscopy. The phase transformation temperatures were determined using differential scanning calorimetry. The results indicated that the internal friction of the solution treated alloy was related to strain amplitude, which could be explained using the movement of Shockley partial dislocations (bowing out and breaking away). But the internal friction of the cold-drawn alloy was independent of strain amplitude because of high density dislocations formed by cold forming. Moreover, when the temperature was changed between 25 deg. C and 500 deg. C, the internal friction of the cold-drawn alloy increased slowly from 25 deg. C to 375 deg. C, and then increased quickly from 375 deg. C to 500 deg. C. However, for the solution treated alloy, there was an internal friction peak at about 210 deg. C in the heating process (from 25 deg. C to 500 deg. C), and there was another internal friction peak at about 150 deg. C in the cooling process. These peaks could be explained using the heat-assisted movement of dislocations. - Research Highlights: {yields}Internal friction of solution treated Fe-19Mn alloy is related to strain amplitude. {yields}Internal friction of cold-drawn Fe-19Mn alloy is independent of strain amplitude. {yields}IF of cold-drawn alloy increases from RT to 500 deg. C. {yields}There is an IF peak of solution treated alloy in heating and cooling process separately. {yields}The results can be explained using the movement of dislocations.

Huang Shuke, E-mail: huangshuke@163.com [Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China); Zhou Danchen; Liu Jianhui [Institute of Machinery Manufacturing Technology, China Academy of Engineering Physics, Mianyang, Sichuan 621900 (China); Teng Jin; Li Ning; Wen Yuhua [School of Manufacturing Science and Engineering, Sichuan University, Chengdu, Sichuan 610065 (China)

2010-11-15T23:59:59.000Z

375

External vs. body temperature  

NLE Websites -- All DOE Office Websites (Extended Search)

External vs. body temperature External vs. body temperature Name: jacqui Location: N/A Country: N/A Date: N/A Question: If one's internal body temperature is approximately 98.6, WHY when the external temperature is 98.6 do we feel hot? Since both temperatures are "balanced", shouldn't we feel comfortable? I am assuming here that humidity levels are controlled, and play no factor in the external temperature. Replies: First of all, skin temperature is lower than 98.6F; 98.6F is internal body temperature, so air at 98.6F is hotter than skin. But more important, it is the nervous system, and the cells in your skin that your brain uses to detect temperature that determine whether you "feel" hot or not, not whether the air is hotter than your skin. These are set so that you feel hot when the air is actually colder than your skin. Why? They are probably set to make you feel hot whenever the air is warm enough so that your body has some trouble getting rid of the excess heat it produces through metabolism. This insures that you take some actions to help your body cool off. Like drinking cool water, or reducing exercise

376

Temperature | Open Energy Information  

Open Energy Info (EERE)

Property:GeofluidTemp M Property:MeanReservoirTemp R Property:ReservoirTemp T Property:Temperature U Property:USGSMeanReservoirTemp Retrieved from "http:...

377

ARM - Temperature Converter  

NLE Websites -- All DOE Office Websites (Extended Search)

Teachers' Toolbox Lesson Plans Temperature Converter The Fahrenheit scale, invented by German physicist Daniel Gabriel Fahrenheit (1686-1736), is based on 32 F for the freezing...

378

Low Temperature Proton Conductivity  

Energy.gov (U.S. Department of Energy (DOE))

Presentation by Tom Zawodzinski to DOE's Fuel Cell Operations at Sub-Freezing Temperatures Workshop held February 1-5, 2005 in Phoenix, Arizona.

379

Temperature and productivity  

Office of Scientific and Technical Information (OSTI)

symptoms and performance of office work under combined exposure to temperature, noise and air pollution. PhD Thesis. International Centre for Indoor Environment and Energy,...

380

Major Cold War Cleanup Milestone Reached at the Savannah River Site |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Major Cold War Cleanup Milestone Reached at the Savannah River Site Major Cold War Cleanup Milestone Reached at the Savannah River Site Major Cold War Cleanup Milestone Reached at the Savannah River Site March 29, 2012 - 10:37am Addthis WASHINGTON, DC - Today, the Energy Department announced it has reached a major milestone in the Department's efforts to clean up the Cold War legacy at the Savannah River Site (SRS) in South Carolina, laying the groundwork for closing two underground storage tanks that previously held radioactive liquid waste from nuclear weapons production at SRS. The determination signed by Energy Secretary Steven Chu paves the way for SRS to begin closing the massive tanks that make up the F Tank Farm. The site will start this year by closing two tanks that pose the greatest risk to the environment - Tanks 18 and 19. These tank closures will be the first

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

The Department of Energy Announces Major Cold War Legacy Waste Cleanup  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The Department of Energy Announces Major Cold War Legacy Waste The Department of Energy Announces Major Cold War Legacy Waste Cleanup Milestone The Department of Energy Announces Major Cold War Legacy Waste Cleanup Milestone September 28, 2011 - 8:54am Addthis CARLSBAD, NM - The U.S. Department of Energy today announced that the Waste Isolation Pilot Plant (WIPP) received its 10,000th shipment of transuranic (TRU) waste over the weekend. This marks an important milestone in DOE's mission to clean up the country's Cold War legacy. "This accomplishment reflects the hard work and dedication of our workers and contractors," said Energy Secretary Steven Chu. "It also demonstrates the Department's commitment to future generations as we continue our cleanup mission as safely and quickly as possible." The 10,000th shipment, which consisted of defense-generated contact-handled

382

Idaho Site Completes Demolition of Cold War-era Nuclear Fuel Reprocessing  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Completes Demolition of Cold War-era Nuclear Fuel Completes Demolition of Cold War-era Nuclear Fuel Reprocessing Facility Idaho Site Completes Demolition of Cold War-era Nuclear Fuel Reprocessing Facility December 22, 2011 - 11:12am Addthis Media Contact Erik Simpson (208) 360-0426 A gravel mound, larger than half a city block and several feet thick, is the only visible feature that remains at the site of a Cold War-era spent nuclear fuel reprocessing facility at the U.S. Department of Energy's Idaho site. About $44 million in American Recovery and Reinvestment Act funds helped Idaho Cleanup Project crews accelerate the demolition of the facility that during its 40 years of operation recovered more than $1 billion worth of uranium. "The ability to retain our highly skilled workforce was a huge contributor to the success of this project," said Idaho Cleanup Project

383

Major Cold War Cleanup Milestone Reached at the Savannah River Site |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Major Cold War Cleanup Milestone Reached at the Savannah River Site Major Cold War Cleanup Milestone Reached at the Savannah River Site Major Cold War Cleanup Milestone Reached at the Savannah River Site March 29, 2012 - 10:37am Addthis WASHINGTON, DC - Today, the Energy Department announced it has reached a major milestone in the Department's efforts to clean up the Cold War legacy at the Savannah River Site (SRS) in South Carolina, laying the groundwork for closing two underground storage tanks that previously held radioactive liquid waste from nuclear weapons production at SRS. The determination signed by Energy Secretary Steven Chu paves the way for SRS to begin closing the massive tanks that make up the F Tank Farm. The site will start this year by closing two tanks that pose the greatest risk to the environment - Tanks 18 and 19. These tank closures will be the first

384

LANL Reaches Waste Shipment Milestone: Waste from Cold War-era weapons  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Reaches Waste Shipment Milestone: Waste from Cold War-era Reaches Waste Shipment Milestone: Waste from Cold War-era weapons production being shipped to WIPP LANL Reaches Waste Shipment Milestone: Waste from Cold War-era weapons production being shipped to WIPP May 31, 2011 - 12:00pm Addthis Media Contact Fred deSousa 505-665-3430 fdesousa@lanl.gov LOS ALAMOS, New Mexico - Los Alamos National Laboratory has reached an important milestone in its campaign to ship transuranic (TRU) waste from Cold War-era nuclear operations to the U.S. Department of Energy's Waste Isolation Pilot Plant (WIPP) near Carlsbad, New Mexico. This month, the Lab surpassed 100,000 plutonium-equivalent curies of TRU waste shipped to WIPP, about one-third of the Lab's total. The waste, sent from LANL to WIPP in more than 750 shipments since 1999,

385

U. S. Department of Energy Savannah River Operations Office - SRS Cold War  

NLE Websites -- All DOE Office Websites (Extended Search)

SRS Cold War Historic Preservation SRS Cold War Historic Preservation SRS Cold War Historic Preservation Background on SRS Cold War Historic Preservation Background: The National Historic Preservation Act (NHPA) of 1966, as amended through 2000, requires that all Federal agencies consider the impacts to historic properties in all their undertakings, such as accelerated clean up. DOE-SR has been consulting with the South Carolina State Historic Preservation Office (SHPO) on NHPA. SHPO is the implementing agency for NHPA in South Carolina. Compliance with NHPA is usually done in three steps: 1) inventory resources; 2) evaluate for National Register eligibility; and 3) avoid or mitigate effects to historic properties. DOE-SR inventoried 732 facilities, all of which were constructed between 1950 and 1989. Two hundred and thirty-two SRS structures are considered

386

Process study and exergy analysis of a novel air separation process cooled by LNG cold energy  

Science Journals Connector (OSTI)

In order to resolve the problems of the current air separation process such as the complex process, cumbersome operation and high operating costs, a novel air separation process cooled by LNG cold energy is propo...

Wendong Xu; Jiao Duan; Wenjun Mao

2014-02-01T23:59:59.000Z

387

Challenges of Advanced Utilization of LNG Cold in Osaka Gas Senboku LNG Terminals  

Science Journals Connector (OSTI)

In this paper, we report the outline of the Senboku LNG terminals, with a focus on Terminal 1, and the facilities using the LNG cold. In addition, by evaluating the ... we consider the vision to improve utilizati...

Takayuki Yamamoto; Yukio Fujiwara…

2012-01-01T23:59:59.000Z

388

Criticality Safety Evaluation Report for the Cold Vacuum Drying (CVD) Facilities Process Water Handling System  

SciTech Connect

This report addresses the criticality concerns associated with process water handling in the Cold Vacuum Drying Facility. The controls and limitations on equipment design and operations to control potential criticality occurrences are identified.

KESSLER, S.F.

2000-08-10T23:59:59.000Z

389

Lignin Modification with Carboxylic Acids and Butyrolactone under Cold Plasma Conditions  

Science Journals Connector (OSTI)

The modification of organosolv lignin powder (ALCELL) with different carboxylic acids such as oleic, lactic, and butyric acids and butyrolactone under cold plasma discharge has been performed. The X-ray photoelectron spectroscopy (XPS), attenuated total ...

Oana Chirila; Marian Totolin; Georgeta Cazacu; Marius Dobromir; Cornelia Vasile

2013-09-05T23:59:59.000Z

390

Economical Analysis of the Cold Air Distribution System: A Case Study  

E-Print Network (OSTI)

In this paper, we briefly introduce the super cold air distribution technique. By comparing the schemes of two air conditioning systems, including a modified air conditioning system, this paper analyzes the technique parameters and the economics...

Zhou, Z.; Xu, W.; Li, J.; Zhao, J.; Niu, L.

2006-01-01T23:59:59.000Z

391

NASA Cold Land Processes Experiment (CLPX 2002/03): Spaceborne Remote Sensing  

Science Journals Connector (OSTI)

This paper describes satellite data collected as part of the 2002/03 Cold Land Processes Experiment (CLPX). These data include multispectral and hyperspectral optical imaging, and passive and active microwave observations of the test areas. The ...

Robert E. Davis; Thomas H. Painter; Rick Forster; Don Cline; Richard Armstrong; Terry Haran; Kyle McDonald; Kelly Elder

2008-12-01T23:59:59.000Z

392

NASA Cold Land Processes Experiment (CLPX 2002/03): Atmospheric Analyses Datasets  

Science Journals Connector (OSTI)

This paper describes the Local Analysis and Prediction System (LAPS) and the 20-km horizontal grid version of the Rapid Update Cycle (RUC20) atmospheric analyses datasets, which are available as part of the Cold Land Processes Field Experiment (...

Glen E. Liston; Daniel L. Birkenheuer; Christopher A. Hiemstra; Donald W. Cline; Kelly Elder

2008-10-01T23:59:59.000Z

393

NASA Cold Land Processes Experiment (CLPX 2002/03): Airborne Remote Sensing  

Science Journals Connector (OSTI)

This paper describes the airborne data collected during the 2002 and 2003 Cold Land Processes Experiment (CLPX). These data include gamma radiation observations, multi- and hyperspectral optical imaging, optical altimetry, and passive and active ...

Don Cline; Simon Yueh; Bruce Chapman; Boba Stankov; Al Gasiewski; Dallas Masters; Kelly Elder; Richard Kelly; Thomas H. Painter; Steve Miller; Steve Katzberg; Larry Mahrt

2009-02-01T23:59:59.000Z

394

Demonstration of achromatic cold-neutron microscope utilizing axisymmetric focusing mirrors  

E-Print Network (OSTI)

An achromatic cold-neutron microscope with magnification 4 is demonstrated. The image-forming optics is composed of nested coaxial mirrors of full figures of revolution, so-called Wolter optics. The spatial resolution, ...

Liu, Dazhi

395

Effects of charge motion control during cold start of SI engines  

E-Print Network (OSTI)

An experimental study was conducted to investigate the effects of various intake charge motion control approaches on the cold start-up process of a port fuel injected SI engine. Engine experiments were performed to assess ...

Lee, Dongkun

2005-01-01T23:59:59.000Z

396

Insiders and outsiders : nuclear arms control experts in Cold War America  

E-Print Network (OSTI)

This dissertation presents a history of the community of nuclear arms control experts in the United States during the middle and later years of the Cold War, the age of thermonuclear ballistic missiles. Arms control experts ...

Wilson, Benjamin Tyler

2014-01-01T23:59:59.000Z

397

Design and operating experience with cold moderators at GKSS, HMI and Risoe  

SciTech Connect

These three cold neutron sources, GKSS, HMI, and Risoe together have had more than 37 years in service. This paper briefly describes the most characteristic items in their construction and mentions parts which have caused problems during these years.

Stendal, Karsten

1997-09-01T23:59:59.000Z

398

Antistatic effect of atmospheric pressure glow discharge cold plasma treatment on textile substrates  

Science Journals Connector (OSTI)

Hydrophobic synthetic textile substrates, nylon and polyester fabrics, were continuously treated in an atmospheric-pressure-glow-discharge-cold-plasma reactor using He and air. The samples ... charge decay time. ...

Kartick Kumar Samanta; Manjeet Jassal; Ashwini K. Agrawal

2010-06-01T23:59:59.000Z

399

Phase coherence in multiple scattering : weak and intense monochromatic light wave propagating in a cold strontium  

E-Print Network (OSTI)

in a cold strontium cloud David Wilkowski, Yannick Bidel, Thierry Chaneli`ere, Robin Kaiser, Bruce Klappauf coherence of a monochromatic laser light propagating in an optically thick sample of laser-cooled strontium

400

Multichannel calculations for frequency shift and line broadening cross sections in collisions of cold hydrogen atoms  

E-Print Network (OSTI)

Zygelman,B. Jamieson,M.J. Stancil,P.C. Dalgarno,A. Workshop on Collisions of Cold Trapped Atoms at Joint Institute for Laboratory Astrophysics, Boulder, CO, U.S.A.

Zygelman, B.; Jamieson, M.J.

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Distinguishing the Cold Conveyor Belt and Sting Jet Airstreams in an Intense Extratropical Cyclone  

Science Journals Connector (OSTI)

Strong winds equatorward and rearward of a cyclone core have often been associated with two phenomena: the cold conveyor belt (CCB) jet and sting jets. Here, detailed observations of the mesoscale structure in this region of an intense cyclone are ...

Oscar Martínez-Alvarado; Laura H. Baker; Suzanne L. Gray; John Methven; Robert S. Plant

2014-08-01T23:59:59.000Z

402

The Linkage between the Warm and the Cold Conveyor Belts in an Idealized Extratropical Cyclone  

Science Journals Connector (OSTI)

This study continues the investigation of airstreams in idealized moist baroclinic waves and addresses the formation of the cold conveyor belt (CCB), its linkage to the warm conveyor belt (WCB), and their impact on the development of a midlatitude ...

Sebastian Schemm; Heini Wernli

2014-04-01T23:59:59.000Z

403

E-Print Network 3.0 - acute cold exposure Sample Search Results  

NLE Websites -- All DOE Office Websites (Extended Search)

polycyclic aromatic hydrocarbons Summary: to the PAHs exposure were noted for barking cough (RR4.80; 95% CI: 2.73-8.44) and wheezing without cold (RR3... RESPIRATORY DISEASES...

404

Humidity Control Systems for Civil Buildings in Hot Summer and Cold Winter Zone in China  

E-Print Network (OSTI)

In the hot summer and cold winter zone, moisture-laden outside air poses real problems for proper ventilation, air-conditioner sizing, and strategies to overcome the reduced dehumidification capacity of more energy-efficient air-conditioning (AC...

Yu, X.

2006-01-01T23:59:59.000Z

405

Cold-cap reactions in vitrification of nuclear waste glass: experiments and modeling  

SciTech Connect

Cold-cap reactions are multiple overlapping reactions that occur in the waste-glass melter during the vitrification process when the melter feed is being converted to molten glass. In this study, we used differential scanning calorimetry (DSC) to investigate cold-cap reactions in a high-alumina high-level waste melter feed. To separate the reaction heat from both sensible heat and experimental instability, we employed the run/rerun method, which enabled us to define the degree of conversion based on the reaction heat and to estimate the heat capacity of the reacting feed. Assuming that the reactions are nearly independent and can be approximated by the nth order kinetics, we obtained the kinetic parameters using the Kissinger method combined with least squares analysis. The resulting mathematical simulation of the cold-cap reactions provides a key element for the development of an advanced cold-cap model.

Chun, Jaehun [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Pierce, David A. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Pokorny, Richard [Inst. of Chemical Technology, Prague (Czech Republic); Hrma, Pavel R. [Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Pohang Univ. of Science and Techology (Korea, Republic of)

2013-05-10T23:59:59.000Z

406

Spatial coherence of electron bunches extracted from an arbitrarily shaped cold atom electron source  

Science Journals Connector (OSTI)

We describe the spatial coherence properties of a cold atom electron source in the framework of a quasihomogeneous wavefield. The model is used as the basis for direct measurements of...

Saliba, Sebastian D; Putkunz, Corey T; Sheludko, David V; McCulloch, Andrew J; Nugent, Keith A; Scholten, Robert E

2012-01-01T23:59:59.000Z

407

Light-Weight, Single-Phase, Liquid-Cooled Cold Plate (Presentation)  

SciTech Connect

This presentation, 'Light-Weight, Low-Cost, Single-Phase Liquid-Cooled Cold Plate,' directly addresses program goals of increased power density, specific power, and lower cost of power electronics components through improved thermal management.

Narumanchi, S.

2013-07-01T23:59:59.000Z

408

Synopsis of Mackenzie GEWEX Studies on the Atmospheric-Hydrologic System of a Cold Region  

Science Journals Connector (OSTI)

The atmospheric-hydrologic system of the Mackenzie River Basin (MRB) shares many traits special to the world cold regions. MAGS investigators used a variety of research methods (field investigations, remote se...

Ming-ko Woo

2008-01-01T23:59:59.000Z

409

Environmental Dependence of Cold Dark Matter Halo Formation  

E-Print Network (OSTI)

We use a high-resolution $N$-body simulation to study how the formation of cold dark matter (CDM) halos is affected by their environments, and how such environmental effects produce the age-dependence of halo clustering observed in recent $N$-body simulations. We estimate, for each halo selected at redshift $z=0$, an `initial' mass $M_{\\rm i}$ defined to be the mass enclosed by the largest sphere which contains the initial barycenter of the halo particles and within which the mean linear density is equal to the critical value for spherical collapse at $z=0$. For halos of a given final mass, $M_{\\rm h}$, the ratio $M_{\\rm i}/M_{\\rm h}$ has large scatter, and the scatter is larger for halos of lower final masses. Halos that form earlier on average have larger $M_{\\rm i}/M_{\\rm h}$, and so correspond to higher peaks in the initial density field than their final masses imply. Old halos are more strongly clustered than younger ones of the same mass because their initial masses are larger. The age-dependence of clustering for low-mass halos is entirely due to the difference in the initial/final mass ratio. Low-mass old halos are almost always located in the vicinity of big structures, and their old ages are largely due to the fact that their mass accretions are suppressed by the hot environments produced by the tidal fields of the larger structure. The age-dependence of clustering is weaker for more massive halos because the heating by large-scale tidal fields is less important.

H. Y. Wang; H. J. Mo; Y. P. Jing

2006-08-31T23:59:59.000Z

410

The use of solid petroleum fuel blocks for cold protection in Texas citrus orchards  

E-Print Network (OSTI)

THE USE OF SOLID PETROLEUM FUEL BLOCKS FOR COLD PROTECTION IN TEXAS CITRUS ORCHARDS A Thesis By MORRIS ADRIAN BAILEY, JR. Submitted to the Graduate College of the Texas Afd6 University in partial fulfillment of the requirements for the degree... of MASTER OF SCIENCE January 1966 Major Subject: Horticulture THE USE OF SOLID PETROLEUM FUEL BLOCKS FOR COLD PROTECTION IN TEXAS CITRUS ORCHARDS A Thesis By MORRIS ADRIAN BAILEY, JR. Approved as to style and content by: (C 'rm of Committee) (Head...

Bailey, Morris Adrian

2012-06-07T23:59:59.000Z

411

Development of a cold cathode ion source for a mass spectrometer type vacuum leak detector  

E-Print Network (OSTI)

DEVELOPMENT OF A COLD CATHODE ION SOURCE FOR A MASS SPECTROL'ETER TYPE VACUUM LEAK DETECTOR A Dissertation By Harold A. Thomas June 1947 Approval as to style and content recommended* Head Deparanent of Electrical Engineering DEVELOPMENT OF A... Investigation of Ion Source ? .......... 6 III. Investigation of Ion Energies ...................... 21 IV. Development of Lrass Spectrometer Tube Utilizing the Cold Cathode Ion S o u r c e ........ 41 V* Conclusions...

Thomas, Harold Albert

2013-10-04T23:59:59.000Z

412

Adaptation and Acclimation of Photosynthetic Microorganisms to Permanently Cold Environments  

Science Journals Connector (OSTI)

...photoautrophic production of organic carbon and energy...base of autotrophic production in low-temperature...autotrophic energy production, which allow food...by providing new organic carbon and nutrient...darkness between solar light cycles (196...molecular to whole cell to ecosystem levels...

Rachael M. Morgan-Kiss; John C. Priscu; Tessa Pocock; Loreta Gudynaite-Savitch; Norman P. A. Huner

2006-03-01T23:59:59.000Z

413

Adaptation and Acclimation of Photosynthetic Microorganisms to Permanently Cold Environments  

Science Journals Connector (OSTI)

...transduction of light energy to chemical energy at low temperatures...organisms (plants, green algae, and cyanobacteria...Springer Science and Business Media.) FIG...raudensis UWO 241) green algae. A. Mid-log-phase...nonphotochemically as heat via an energy-dependent fluorescence...

Rachael M. Morgan-Kiss; John C. Priscu; Tessa Pocock; Loreta Gudynaite-Savitch; Norman P. A. Huner

2006-03-01T23:59:59.000Z

414

Power, Fresh Water, and Food from Cold, Deep Sea Water  

Science Journals Connector (OSTI)

...used. 5) Boilers will use the controlled flash evaporation (CFE) system to re-duce losses in pressure and temperature drops...will increase production of both water and power (6, 8). The CFE system also will reduce substan-tially the deaeration costs...

Donald F. Othmer; Oswald A. Roels

1973-10-12T23:59:59.000Z

415

Mitofusin-2 protects against cold stress-induced cell injury in HEK293 cells  

SciTech Connect

Mitochondrial impairment is hypothesized to contribute to cell injury during cold stress. Mitochondria fission and fusion are closely related in the function of the mitochondria, but the precise mechanisms whereby these processes regulate cell injury during cold stress remain to be determined. HEK293 cells were cultured in a cold environment (4.0 {+-} 0.1 {sup o}C) for 2, 4, 8, or 12 h. Western blot analyses showed that these cells expressed decreased fission-related protein Drp1 and increased fusion-related protein Mfn2 at 4 h; meanwhile, electron microscopy analysis revealed large and long mitochondrial morphology within these cells, indicating increased mitochondrial fusion. With silencing of Mfn2 but not of Mfn1 by siRNA promoted cold-stress-induced cell death with decreased ATP production in HEK293 cells. Our results show that increased expression of Mfn2 and mitochondrial fusion are important for mitochondrial function as well as cell survival during cold stress. These findings have important implications for understanding the mechanisms of mitochondrial fusion and fission in cold-stress-induced cell injury.

Zhang, Wenbin; Chen, Yaomin; Yang, Qun; Che, Honglei; Chen, Xiangjun; Yao, Ting; Zhao, Fang; Liu, Mingchao; Ke, Tao [Department of Occupational and Environmental Health, School of Public Health, Fourth Military Medical University, Xi'an 710032 (China)] [Department of Occupational and Environmental Health, School of Public Health, Fourth Military Medical University, Xi'an 710032 (China); Chen, Jingyuan, E-mail: jy_chen@fmmu.edu.cn [Department of Occupational and Environmental Health, School of Public Health, Fourth Military Medical University, Xi'an 710032 (China)] [Department of Occupational and Environmental Health, School of Public Health, Fourth Military Medical University, Xi'an 710032 (China); Luo, Wenjing, E-mail: luowenj@fmmu.edu.cn [Department of Occupational and Environmental Health, School of Public Health, Fourth Military Medical University, Xi'an 710032 (China)] [Department of Occupational and Environmental Health, School of Public Health, Fourth Military Medical University, Xi'an 710032 (China)

2010-06-25T23:59:59.000Z

416

Fiber optic temperature sensor  

SciTech Connect

Our fiber optic temperature measurement sensor and system is a major improvement over methods currently in use in most industrial processes, and it delivers all of the attributes required simplicity, accuracy, and cost efficiency-to help improve all of these processes. Because temperature is a basic physical attribute of nearly every industrial and commercial process, our system can eventually result in significant improvements in nearly every industrial and commercial process. Many finished goods, and the materials that go into them, are critically dependent on the temperature. The better the temperature measurement, the better quality the goods will be and the more economically they can be produced. The production and transmission of energy requires the monitoring of temperature in motors, circuit breakers, power generating plants, and transmission line equipment. The more reliable and robust the methods for measuring these temperature, the more available, stable, and affordable the supply of energy will become. The world is increasingly realizing the threats to health and safety of toxic or otherwise undesirable by products of the industrial economy in the environment. Cleanup of such contamination often depends on techniques that require the constant monitoring of temperature in extremely hazardous environments, which can damage most conventional temperature sensors and which are dangerous for operating personnel. Our system makes such monitoring safer and more economical.

Rabold, D.

1995-12-01T23:59:59.000Z

417

High temperature probe  

DOE Patents (OSTI)

A high temperature probe for sampling, for example, smokestack fumes, and is able to withstand temperatures of 3000.degree. F. The probe is constructed so as to prevent leakage via the seal by placing the seal inside the water jacket whereby the seal is not exposed to high temperature, which destroys the seal. The sample inlet of the probe is also provided with cooling fins about the area of the seal to provide additional cooling to prevent the seal from being destroyed. Also, a heated jacket is provided for maintaining the temperature of the gas being tested as it passes through the probe. The probe includes pressure sensing means for determining the flow velocity of an efficient being sampled. In addition, thermocouples are located in various places on the probe to monitor the temperature of the gas passing there through.

Swan, Raymond A. (Fremont, CA)

1994-01-01T23:59:59.000Z

418

Mutual friction in a cold color flavor locked superfluid and r-mode instabilities in compact stars  

E-Print Network (OSTI)

Dissipative processes acting in rotating neutron stars are essential in preventing the growth of the r-mode instability. We estimate the damping time of r-modes of an hypothetical compact quark star made up by color flavor locked quark matter at a temperature $T \\lesssim 0.01$ MeV. The dissipation that we consider is due to the the mutual friction force between the normal and the superfluid component arising from the elastic scattering of phonons with quantized vortices. This process is the dominant one for temperatures $T \\lesssim 0.01$ MeV where the mean free path of phonons due to their self-interactions is larger than the radius of the star and they can be described as an ideal bosonic gas. We find that r-modes oscillations are efficiently damped by this mechanism for pulsars rotating at frequencies of the order of 1 Hz at most. Our analysis rules out the possibility that cold pulsars rotating at higher frequencies are entirely made up by color flavor locked quark matter.

Massimo Mannarelli; Cristina Manuel; Basil A. Sa'd

2008-07-21T23:59:59.000Z

419

REMEDIES FOR THE COMMON COLD If you catch a cold, you can expect to be sick for about a week . . . but, that doesn't  

E-Print Network (OSTI)

COUGH SYRUPS: The American College of Chest Physicians strongly discourage the use of these medications because they're ineffective at treating the underlying cause of cough due to colds Some contain ingredients that may alleviate coughing, but the amounts are too small to do much good and may actually

O'Toole, Alice J.

420

Surface-induced heating of cold polar molecules  

E-Print Network (OSTI)

We study the rotational and vibrational heating of diatomic molecules placed near a surface at finite temperature on the basis of macroscopic quantum electrodynamics. The internal molecular evolution is governed by transition rates that depend on both temperature and position. Analytical and numerical methods are used to investigate the heating of several relevant molecules near various surfaces. We determine the critical distances at which the surface itself becomes the dominant source of heating and we investigate the transition between the long-range and short-range behaviour of the heating rates. A simple formula is presented that can be used to estimate the surface-induced heating rates of other molecules of interest. We also consider how the heating depends on the thickness and composition of the surface.

Stefan Yoshi Buhmann; M. R. Tarbutt; Stefan Scheel; E. A. Hinds

2008-06-18T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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421

Absorption by cold Fermi atoms in a harmonic trap  

E-Print Network (OSTI)

We study the absorption spectrum for a strongly degenerate Fermi gas confined in a harmonic trap. The spectrum is calculated using both the exact summation and also the Thomas-Fermi (TF) approximation. In the latter case, relatively simple analytical expressions are obtained for the absorption lineshape at large number of trapped atoms. At zero temperature, the approximated lineshape is characterized by a $(1-z^2)^{5/2}$ dependence which agrees well with the exact numerical calculations. At non-zero temperature, the spectrum becomes broader, although remains non-Gaussian as long as the fermion gas is degenerate. The changes in the trap frequency for an electronically excited atom can introduce an additional line broadening.

Gediminas Juzeliunas; Marius Masalas

2000-11-10T23:59:59.000Z

422

Fever and Body Temperature  

NLE Websites -- All DOE Office Websites (Extended Search)

Fever and Body Temperature Fever and Body Temperature Name: Ying Location: N/A Country: N/A Date: N/A Question: Hi, I have a few questions that I want to ask you: Why does your body chose to raise its temperature when you have a fever? Replies: Most bacteria and viruses that live in your body grow best at body temperature. They don't grow very well when the temperature is raised. When there are bacteria in your body they give off chemicals that signal white blood cells to come to try to eat them and also affect an area in your brain called the hypothalamus. This part of the brain controls alot of the automatic functions in your body and is also the site of your body's "thermostat". When the chemicals from the bacteria circulate through the hypothalamus it sets the body's temperature higher. This is called a fever. Your body kind of tries to "sweat out" the bacteria and kill them with a higher temperature. Some scientists question whether trying to bring down a fever is the best thing to do. If it isn't too high, some believe we should just let it work

423

Moderate Temperature | Open Energy Information  

Open Energy Info (EERE)

Moderate Temperature Moderate Temperature Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Sanyal Temperature Classification: Moderate Temperature Dictionary.png Moderate Temperature: No definition has been provided for this term. Add a Definition Sanyal Temp Classification This temperature scheme was developed by Sanyal in 2005 at the request of DOE and GEA, as reported in Classification of Geothermal Systems: A Possible Scheme. Extremely Low Temperature Very Low Temperature Low Temperature Moderate Temperature High Temperature Ultra High Temperature Steam Field Reservoir fluid between 190°C and 230°C is considered by Sanyal to be "moderate temperature." "The next higher resource temperature limit is chosen as 230°C, which is lower than the minimum initial resource temperature encountered in

424

The Temperature of Interstellar Clouds from Turbulent Heating  

E-Print Network (OSTI)

To evaluate the effect of turbulent heating in the thermal balance of interstellar clouds, we develop an extension of the log-Poisson intermittency model to supersonic turbulence. The model depends on a parameter, d, interpreted as the dimension of the most dissipative structures. By comparing the model with the probability distribution of the turbulent dissipation rate in a simulation of supersonic and super-Alfvenic turbulence, we find a best-fit value of d=1.64. We apply this intermittency model to the computation of the mass-weighted probability distribution of the gas temperature of molecular clouds, high-mass star-forming cores, and cold diffuse HI clouds. Our main results are: i) The mean gas temperature in molecular clouds can be explained as the effect of turbulent heating alone, while cosmic ray heating may dominate only in regions where the turbulent heating is low; ii) The mean gas temperature in high-mass star-forming cores with typical FWHM of ~6 km/s (corresponding to a 1D rms velocity of 2.5 km/s) may be completely controlled by turbulent heating, which predicts a mean value of approximately 36 K, two to three times larger than the mean gas temperature in the absence of turbulent heating; iii) The intermittency of the turbulent heating can generate enough hot regions in cold diffuse HI clouds to explain the observed CH+ abundance, if the rms velocity on a scale of 1 pc is at least 3 km/s, in agreement with previous results based on incompressible turbulence. Because of its importance in the thermal balance of molecular clouds and high-mass star-forming cores, the process of turbulent heating may be central in setting the characteristic stellar mass and in regulating molecular chemical reactions.

Liubin Pan; Paolo Padoan

2008-06-30T23:59:59.000Z

425

ARM - Measurement - Atmospheric temperature  

NLE Websites -- All DOE Office Websites (Extended Search)

temperature temperature ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Atmospheric temperature The temperature indicated by a thermometer exposed to the air in a place sheltered from direct solar radiation. Categories Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments AERI : Atmospheric Emitted Radiance Interferometer SONDE : Balloon-Borne Sounding System CO2FLX : Carbon Dioxide Flux Measurement Systems ECOR : Eddy Correlation Flux Measurement System

426

ARM - Measurement - Virtual temperature  

NLE Websites -- All DOE Office Websites (Extended Search)

govMeasurementsVirtual temperature govMeasurementsVirtual temperature ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Virtual temperature The virtual temperature Tv = T(1 + rv/{epsilon}), where rv is the mixing ratio, and {epsilon} is the ratio of the gas constants of air and water vapor ( 0.622). Categories Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments CO2FLX : Carbon Dioxide Flux Measurement Systems MWRP : Microwave Radiometer Profiler RWP : Radar Wind Profiler

427

Temperature-aware microarchitecture  

Science Journals Connector (OSTI)

With power density and hence cooling costs rising exponentially, processor packaging can no longer be designed for the worst case, and there is an urgent need for runtime processor-level techniques that can regulate operating temperature when the package's ...

Kevin Skadron; Mircea R. Stan; Wei Huang; Sivakumar Velusamy; Karthik Sankaranarayanan; David Tarjan

2003-06-01T23:59:59.000Z

428

Elevated temperature crack propagation  

SciTech Connect

This paper is a summary of two NASA contracts on high temperature fatigue crack propagation in metals. The first evaluated the ability of fairly simple nonlinear fracture parameters to correlate crack propagation. Hastelloy-X specimens were tested under isothermal and thermomechanical cycling at temperatures up to 980 degrees C (1800 degrees F). The most successful correlating parameter was the crack tip opening displacement derived from the J-integral. The second evaluated the ability of several path-independent integrals to correlate crack propagation behavior. Inconel 718 specimens were tested under isothermal, thermomechanical, temperature gradient, and creep conditions at temperatures up to 650 degrees C (1200 degrees F). The integrals formulated by Blackburn and by Kishimoto correlated the data reasonably well under all test conditions.

Orange, T.W.

1994-02-01T23:59:59.000Z

429

Low temperature cryoprobe  

DOE Patents (OSTI)

A portable, hand held probe usable within a small confine to produce a point source of nitrogen or helium at a relatively constant temperatures of 77 degrees Kelvin, is discussed. 3 figs.

Sungaila, Z.F.

1988-04-12T23:59:59.000Z

430

Impact of porous medium on the high cycle temperature fluctuations in a mixing tee  

SciTech Connect

Temperature fluctuations occur in the region where hot and cold fluids mix turbulently in the nuclear power plants. Temperature fluctuations cause thermal fatigue of piping systems. In the design of generation IV nuclear power plants, supercritical fluids are supposed to be used widely. This paper investigated the thermal striping phenomenon caused by the turbulent mixing in a supercritical water Tee. There are two key issues in the study of thermal striping phenomenon: One is to find the region which experiences the peak temperature fluctuation; the other is how to attenuate it. Porous media was used to attenuate the temperature fluctuations in this paper. The results show that porous media with proper parameters in a tee can reduce the temperature fluctuations magnificently. (authors)

Bu, L.; Zhao, J. [Centre for E-City, School of Electrical and Electronics Engineering, Nanyang Technological Univ., Singapore, 639798 (Singapore)

2012-07-01T23:59:59.000Z

431

High temperature pressure gauge  

DOE Patents (OSTI)

A high temperature pressure gauge comprising a pressure gauge positioned in fluid communication with one end of a conduit which has a diaphragm mounted in its other end. The conduit is filled with a low melting metal alloy above the diaphragm for a portion of its length with a high temperature fluid being positioned in the remaining length of the conduit and in the pressure gauge.

Echtler, J. Paul (Pittsburgh, PA); Scandrol, Roy O. (Library, PA)

1981-01-01T23:59:59.000Z

432

Temperature maintained battery system  

SciTech Connect

A chassis contains a battery charger connected to a multi-cell battery. The charger receives direct current from an external direct current power source and has means to automatically selectively charge the battery in accordance with a preselected charging program relating to temperature adjusted state of discharge of the battery. A heater device is positioned within the chassis which includes heater elements and a thermal switch which activates the heater elements to maintain the battery above a certain predetermined temperature in accordance with preselected temperature conditions occurring within the chassis. A cooling device within the chassis includes a cooler regulator, a temperature sensor, and peltier effect cooler elements. The cooler regulator activates and deactivates the peltier cooler elements in accordance with preselected temperature conditions within the chassis sensed by the temperature sensor. Various vehicle function circuitry may also be positioned within the chassis. The contents of the chassis are positioned to form a passage proximate the battery in communication with an inlet and outlet in the chassis to receive air for cooling purposes from an external source.

Newman, W.A.

1980-10-21T23:59:59.000Z

433

High Temperature | Open Energy Information  

Open Energy Info (EERE)

Temperature Temperature Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Sanyal Temperature Classification: High Temperature Dictionary.png High Temperature: No definition has been provided for this term. Add a Definition Sanyal Temp Classification This temperature scheme was developed by Sanyal in 2005 at the request of DOE and GEA, as reported in Classification of Geothermal Systems: A Possible Scheme. Extremely Low Temperature Very Low Temperature Low Temperature Moderate Temperature High Temperature Ultra High Temperature Steam Field Reservoir fluid between 230°C and 300°C is considered by Sanyal to be "high temperature." "Above a temperature level of 230°C, the reservoir would be expected to become two-phase at some point during exploitation. The next higher

434

Photo of the Week: Cold as Ice - Using Titan to Build More Efficient Wind  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Cold as Ice - Using Titan to Build More Cold as Ice - Using Titan to Build More Efficient Wind Turbines Photo of the Week: Cold as Ice - Using Titan to Build More Efficient Wind Turbines January 10, 2014 - 2:53pm Addthis Wind energy is one of the world's fast-growing energy sources -- and many of the regions that could benefit from wind energy happen to be in cold climates. Since 2005, scientists at GE Global Research have been researching, developing and testing materials in freezing conditions. By developing more efficient materials for wind turbines, researchers can increase turbine efficiency and reduce potential downtime for wind turbines in cold climates. The teams use Oak Ridge National Laboratory's Titan, the world's most powerful supercomputer, to simulate hundreds of water droplets as they freeze, with each droplet containing one million molecules. By simulating and studying how water freezes on a molecular level, scientists are gaining an understanding of how ice forms, which will help them design better, more efficient materials for these colder climates. Pictured here is an illustration of a single water droplet, filled with molecules freezing in slow motion. Learn more about their research here. | Photo/visualization courtesy of M. Matheson, Oak Ridge National Laboratory.

435

Design and first cold test of BNL superconducting 112 MHz QWR for electron gun applications  

SciTech Connect

Brookhaven National Laboratory and Niowave, Inc. have designed, fabricated, and performed the first cold test of a superconducting 112 MHz quarter-wave resonator (QWR) for electron gun experiments. The first cold test of the QWR cryomodule has been completed at Niowave. The paper discusses the cryomodule design, presents the cold test results, and outline plans to upgrade the cryomodule for future experiments. A quarter-wave resonator concept of superconducting RF (SRF) electron gun was proposed at BNL for electron cooling ion/proton beams at RHIC. QWRs can be made sufficiently compact even at low RF frequencies (long wavelengths). The long wavelength allows to produce long electron bunches, thus minimizing space charge effects and enabling high bunch charge. Also, such guns should be suitable for experiments requiring high average current electron beams. A 112 MHz QWR gun was designed, fabricated, and cold-tested in collaboration between BNL and Niowave. This is the lowest frequency SRF gun ever tested successfully. In this paper we describe the gun design and fabrication, present the cold test results, and outline plans for the cryomodule upgrade for future experiments.

Belomestnykh, S.; Ben-Zvi, I.; Boulware, C.H.; Chang, X.; Grimm, T.L.; Siegel, B.; Than, R.; Winowski, M.

2011-03-28T23:59:59.000Z

436

Impacts of Optimized Cold & Hot Deck Reset Schedules on Dual Duct VAV Systems - Theory and Model Simulation  

E-Print Network (OSTI)

Impacts of Optimized Cold & Hot Deck Reset Schedules on Dual Duct VAV Systems - Theory and Model Simulation Mingsheng Liu, Ph.D., P.E. Energy Systems Laboratory Texas A&M University College Station, Texas Abstract Optimal hot and cold deck... rate increased from 30% to 70% of the maximum flow. Introduction Simultaneous heating and cooling can be reduced sigmficantly by optimizing cold and hot deck reset schedules in dual duct constant volume systems [Liu et. a1 1994, 1995, 19961...

Liu, M.; Claridge, D. E.

1998-01-01T23:59:59.000Z

437

Cavity optomechanics with Si3N4 membranes at cryogenic temperatures  

E-Print Network (OSTI)

We describe a cryogenic cavity-optomechanical system that combines Si3N4 membranes with a mechanically-rigid Fabry-Perot cavity. The extremely high quality-factor frequency products of the membranes allow us to cool a MHz mechanical mode to a phonon occupation of less than 10, starting at a bath temperature of 5 kelvin. We show that even at cold temperatures thermally-occupied mechanical modes of the cavity elements can be a limitation, and we discuss methods to reduce these effects sufficiently to achieve ground state cooling. This promising new platform should have versatile uses for hybrid devices and searches for radiation pressure shot noise.

T. P. Purdy; R. W. Peterson; P. -L. Yu; C. A. Regal

2012-08-31T23:59:59.000Z

438

Uniaxial in-reactor creep of Zircaloy-2: Stress, flux, and temperature dependence  

SciTech Connect

Results of several uniaxial in-reactor creep tests, carried out in a temperature range of 553 to 623 K on Zircaloy-2 cold-worked specimens in fast flux (E > 1 MeV) from 1.2 X 10/sup 17/ to 1.1 X 10/sup 18/ n X m/sup -2/ X s and in a stress range from 98 to 157 MPa, are presented. The effects of instantaneous flux and applied tensile stress are investigated, and the available data correlated by functional relationship. The effect of the temperature on the creep rate in the presence and absence of flux is also investigated and discussed.

Tinti, F.

1983-01-01T23:59:59.000Z

439

THE COLD SHOULDER: EMISSION MEASURE DISTRIBUTIONS OF ACTIVE REGION CORES  

SciTech Connect

The coronal heating mechanism for active region core loops is difficult to determine because these loops are often not resolved and cannot be studied individually. Rather, we concentrate on the 'inter-moss' areas between loop footpoints. We use observations from the Hinode EUV Imaging Spectrometer and the X-Ray Telescope to calculate the emission measure distributions of eight inter-moss areas in five different active regions. The combined data sets provide both high- and low-temperature constraints and ensure complete coverage in the temperature range appropriate for active regions. For AR 11113, the emission can be modeled with heating events that occur on timescales less than the cooling time. The loops in the core regions appear to be close to equilibrium and are consistent with steady heating. The other regions studied, however, appear to be dominated by nanoflare heating. Our results are consistent with the idea that active region age is an important parameter in determining whether steady or nanoflare heating is primarily responsible for the core emission, that is, older regions are more likely to be dominated by steady heating, while younger regions show more evidence of nanoflares.

Schmelz, J. T.; Pathak, S., E-mail: jschmelz@memphis.edu [Physics Department, University of Memphis, Memphis, TN 38152 (United States)

2012-09-10T23:59:59.000Z

440

Building America Whole-House Solutions for New Homes: Affordable Cold Climate Infill Housing with Hybrid Insulation Approach  

Energy.gov (U.S. Department of Energy (DOE))

Affordable Cold Climate Infill Housing with Hybrid Insulation Approach, Wyandotte, Michigan (Fact Sheet), Building America Case Study: Efficient Solutions for New and Existing Homes, Building Technologies Office (BTO)

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Low Temperature | Open Energy Information  

Open Energy Info (EERE)

Temperature Temperature Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Sanyal Temperature Classification: Low Temperature Dictionary.png Low Temperature: No definition has been provided for this term. Add a Definition Sanyal Temp Classification This temperature scheme was developed by Sanyal in 2005 at the request of DOE and GEA, as reported in Classification of Geothermal Systems: A Possible Scheme. Extremely Low Temperature Very Low Temperature Low Temperature Moderate Temperature High Temperature Ultra High Temperature Steam Field Reservoir fluid between 150°C and 190°C is considered by Sanyal to be "low temperature." "The mobile fluid phase in these reservoirs is liquid water. A number of commercial power projects have been operated over the last two decades

442

High temperature thermometric phosphors  

DOE Patents (OSTI)

A high temperature phosphor consists essentially of a material having the general formula LuPO.sub.4 :Dy.sub.(x),Eu.sub.y) wherein: 0.1 wt %.ltoreq.x.ltoreq.20 wt % and 0.1 wt %.ltoreq.y.ltoreq.20 wt %. The high temperature phosphor is in contact with an article whose temperature is to be determined. The article having the phosphor in contact with it is placed in the environment for which the temperature of the article is to be determined. The phosphor is excited by a laser causing the phosphor to fluoresce. The emission from the phosphor is optically focused into a beam-splitting mirror which separates the emission into two separate emissions, the emission caused by the dysprosium dopant and the emission caused by the europium dopent. The separated emissions are optically filtered and the intensities of the emission are detected and measured. The ratio of the intensity of each emission is determined and the temperature of the article is calculated from the ratio of the intensities of the separate emissions.

Allison, Stephen W. (Knoxville, TN); Cates, Michael R. (Oak Ridge, TN); Boatner, Lynn A. (Oak Ridge, TN); Gillies, George T. (Earlysville, VA)

1999-03-23T23:59:59.000Z

443

Temperature Data Evaluation  

SciTech Connect

Groundwater temperature is sensitive to the competing processes of heat flow from below the advective transport of heat by groundwater flow. Because groundwater temperature is sensitive to conductive and advective processes, groundwater temperature may be utilized as a tracer to further constrain the uncertainty of predictions of advective radionuclide transport models constructed for the Nevada Test Site (NTS). Since heat transport, geochemical, and hydrologic models for a given area must all be consistent, uncertainty can be reduced by devaluing the weight of those models that do not match estimated heat flow. The objective of this study was to identify the quantity and quality of available heat flow data at the NTS. One-hundred-forty-five temperature logs from 63 boreholes were examined. Thirteen were found to have temperature profiles suitable for the determination of heat flow values from one or more intervals within the boreholes. If sufficient spatially distributed heat flow values are obtained, a heat transport model coupled to a hydrologic model may be used to reduce the uncertainty of a nonisothermal hydrologic model of the NTS.

Gillespie, David

2003-03-01T23:59:59.000Z

444

Temperature initiated passive cooling system  

DOE Patents (OSTI)

A passive cooling system for cooling an enclosure only when the enclosure temperature exceeds a maximum standby temperature comprises a passive heat transfer loop containing heat transfer fluid having a particular thermodynamic critical point temperature just above the maximum standby temperature. An upper portion of the heat transfer loop is insulated to prevent two phase operation below the maximum standby temperature. 1 fig.

Forsberg, C.W.

1994-11-01T23:59:59.000Z

445

Former Laboratory scientist discusses his perspective on the Cold War in  

NLE Websites -- All DOE Office Websites (Extended Search)

Former Lab scientist discusses his perspective on the Cold War Former Lab scientist discusses his perspective on the Cold War Former Laboratory scientist discusses his perspective on the Cold War in 70th anniversary talk John C. Hopkins will discuss the role of and rationale for nuclear weapons from the Manhattan Project in the 1940s to the last nuclear test in Nevada in 1992. November 7, 2013 John C. Hopkins John C. Hopkins Contact Steve Sandoval Communications Office (505) 665-9206 Email "I believe that the teams at Los Alamos, Livermore and Sandia and the entire nuclear weapons complex, deserve a resounding 'well done' for their contributions to world peace," Hopkins said. Next-to-last presentation in yearlong series at Bradbury Science Museum LOS ALAMOS, N.M., Nov. 7, 2013-John C. Hopkins, former associate director

446

Energy-Saving Technologies for Chinese Buildings in Hot Summer and Cold  

NLE Websites -- All DOE Office Websites (Extended Search)

Energy-Saving Technologies for Chinese Buildings in Hot Summer and Cold Energy-Saving Technologies for Chinese Buildings in Hot Summer and Cold Winter Regions Speaker(s): Shuhong Li Xiaosong Zhang Yonggao Yin Date: September 14, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Wangda Zuo With the development of economy and urbanization energy consumption is becoming a very attractive issue in China. Energy consumption in buildings is the one of main sections which dominates the total energy distributions. In this seminar our team will introduce some energy-saving technology for Chinese buildings in hot summer and cold winter regions. We have developed several high efficient cooling and heating supply system and equipment, and proposed energy-efficient hybrid heat pump combined with other heat sources, such as solar energy, geothermal energy, air thermal source.

447

Hanford Cold Vacuum Drying Facility, Multi-Canister Overpack, Operational Proficiency Demonstration, June 2011  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

6-22 6-22 Site: DOE-Richland Operations Office Subject: Office of Enforcement and Oversight's Office of Safety and Emergency Management Evaluations Activity Report for the Cold Vacuum Drying Facility, Multi-Canister Overpack, Operational Proficiency Demonstration Dates of Activity : 06/20/2011 - 06/22/2011 Report Preparer: Jake Wechselberger Activity Description/Purpose: The U.S. Department of Energy's (DOE) Office of Enforcement and Oversight, within the Office of Health, Safety and Security (HSS), performed an operational awareness review of the Cold Vacuum Drying Facility, Multi-Canister Overpack, Operational Proficiency Demonstration. Result: During the period June 20-22, 2011, an HSS representative participated in an operational assessment of the Cold Vacuum

448

Recovery Act Workers Accomplish Cleanup of Second Cold War Coal Ash Basin  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

21, 2011 21, 2011 Recovery Act Workers Accomplish Cleanup of Second Cold War Coal Ash Basin AIKEN, S.C. - American Recovery and Reinvestment Act workers re- cently cleaned up a second basin containing coal ash residues from Cold War operations at the Savannah River Site (SRS). About $24 million from the Recovery Act funded the environmental restoration project, allowing SRS to complete the project at least five years ahead of schedule. The work is part of a larger Recovery Act cleanup of the P Area scheduled for completion by the end of September 2011. The bulk of that cleanup involves deactivating and decommissioning a nuclear materials production reactor that occu- pies more than 300,000 square feet of space. The P Area cleanup will reduce the Cold War footprint by 31 square

449

Theoretical approach of freeze seawater desalination on flake ice maker utilizing LNG cold energy  

Science Journals Connector (OSTI)

Abstract In this work, a novel concept in freeze desalination (FD) was introduced. Nowadays the total liquefied natural gas (LNG) production capacity has reached 290 Mt/year. Its enormous cold energy released from re-gasification can be used in the freeze desalination process to minimize the overall energy consumption. A process of FD on flake ice maker utilizing LNG cold energy was designed and simulated by HYSYS software. An ice bucket on flake ice maker was chosen as seawater crystallizer mainly due to its continuous ice making and removing ice without heat source. A dynamic model of the freezing section has been developed and simulated through gPROMS software. The results show that the consumption of 1 kg equivalent LNG cold energy can obtain about 2 kg of ice melt water. In addition, it is shown that the power consumption of this LNG/FD hybrid process is negligible.

Wensheng Cao; Clive Beggs; Iqbal M. Mujtaba

2015-01-01T23:59:59.000Z

450

Spent nuclear fuel project cold vacuum drying facility vacuum and purge system design description  

SciTech Connect

This document provides the System Design Description (SDD) for the Cold Vacuum Drying Facility (CVDF) Vacuum and Purge System (VPS) . The SDD was developed in conjunction with HNF-SD-SNF-SAR-O02, Safety Analysis Report for the Cold Vacuum Drying Facility, Phase 2, Supporting Installation of Processing Systems (Garvin 1998), The HNF-SD-SNF-DRD-002, 1998, Cold Vacuum Drying Facility Design Requirements, and the CVDF Design Summary Report. The SDD contains general descriptions of the VPS equipment, the system functions, requirements and interfaces. The SDD provides references for design and fabrication details, operation sequences and maintenance. This SDD has been developed for the SNFP Operations Organization and shall be updated, expanded, and revised in accordance with future design, construction and startup phases of the CVDF until the CVDF final ORR is approved.

IRWIN, J.J.

1998-11-30T23:59:59.000Z

451

Scattering of X-Rays by Cold-Worked and by Annealed Beryllium  

Science Journals Connector (OSTI)

The intensities of reflection of Mo K?-radiation by important crystallographic planes in powdered beryllium have been measured by an ionization method under the following conditions: (I) cold-worked particles of average diameter about 3×(10)-3 cm; (II) the same after ½ hr. at 800°C; (III) cold-worked particles of average diameter about (10)-2 cm; (IV) the same after 1 hr. at 950°C. In (II) and especially in (IV) cold-working strains should have been relieved. The atomic structure factors derived from these data show no appreciable change with annealing and further show that Be crystals are rather imperfect. The mass absorption coefficient is found to be 0.26 in good agreement with a value computed according to Compton's empirical formula.

James E. Boyd

1934-06-01T23:59:59.000Z

452

Space Chamber Reaches Cold Target at Unprecedented Efficiency | U.S. DOE  

NLE Websites -- All DOE Office Websites (Extended Search)

Space Chamber Reaches Cold Target at Unprecedented Efficiency Space Chamber Reaches Cold Target at Unprecedented Efficiency Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » October 2012 Space Chamber Reaches Cold Target at Unprecedented Efficiency Thomas Jefferson Laboratory lends expertise in cryogenics developments. Print Text Size: A A A Subscribe FeedbackShare Page Click to enlarge photo. Enlarge Photo Image courtesy of NASA NASA's Space Environment Simulation Lab Chamber A, which is used by the

453

temperature | OpenEI  

Open Energy Info (EERE)

temperature temperature Dataset Summary Description Freedom Field is a not-for-profit organization formed to facilitate development and commercialization of renewable energy solutions. The organization has installed a variety of renewable energy generating technologies at their facility (located at Rock River Water Reclamation in Rockford, IL), with the intention of serving as a demonstration facility. The facility monitors data (at 5-minute intervals) from a weather station, 12.4 kW of PV panels (56 220-watt panels), a 10kW wind turbine (HAWT), a 1.2 kW wind turbine (VAWT), an absorption cooling system, and biogas burners. Source Freedom Field Date Released July 19th, 2011 (3 years ago) Date Updated Unknown Keywords biogas monitoring data PV radiance solar temperature

454

A Furnace Temperature Regulator  

Science Journals Connector (OSTI)

Synopsis.—By making the heating coil of an electric furnace one arm of a wheatstone bridge, and combining this with a galvanometer regulator, thus keeping constant the resistance of the coil, we can, regardless of variations in the current supply, and with no attention, maintain constant the temperature of furnaces not too directly influenced by the temperature of the room, or where the surrounding air is kept constant. The power available in this regulator is relatively very great indeed; nothing has to be inserted within the furnace cavity, and the lag is practically nothing; the regulator is often almost at its best under conditions most unfavorable to other regulators. It has held a small furnace constant to 0.1° for hours at temperatures from 500° to 1400°.

Walter P. White and Leason H. Adams.

1919-07-01T23:59:59.000Z

455

Temperature profile detector  

DOE Patents (OSTI)

Disclosed is a temperature profile detector shown as a tubular enclosure surrounding an elongated electrical conductor having a plurality of meltable conductive segments surrounding it. Duplicative meltable segments are spaced apart from one another along the length of the enclosure. Electrical insulators surround these elements to confine molten material from the segments in bridging contact between the conductor and a second electrical conductor, which might be the confining tube. The location and rate of growth of the resulting short circuits between the two conductors can be monitored by measuring changes in electrical resistance between terminals at both ends of the two conductors. Additional conductors and separate sets of meltable segments operational at differing temperatures can be monitored simultaneously for measuring different temperature profiles. 8 figs.

Tokarz, R.D.

1983-10-11T23:59:59.000Z

456

Temperature, heat flow maps and temperature gradient holes |...  

Open Energy Info (EERE)

Temperature, heat flow maps and temperature gradient holes Author T. G. Zacharakis Organization Colorado Geological Survey in Cooperation with the U.S. Department of Energy...

457

Ch. VII, Temperature, heat flow maps and temperature gradient...  

Open Energy Info (EERE)

Ch. VII, Temperature, heat flow maps and temperature gradient holes Author T. G. Zacharakis Editor T. G. Zacharakis Published Colorado Geological Survey in Cooperation with the...

458

Strong nuclear force in cold antihydrogen-helium collisions  

SciTech Connect

We calculate cross sections for elastic scattering and annihilation in antihydrogen-helium collisions at low energies. The calculations are based on the Born-Oppenheimer approximation, and incorporate the effects of the strong interaction through a scattering length approach. We find that the strong nuclear force not only causes significant annihilation, but also cannot be neglected in the elastic channel. In the zero energy limit we obtain the scattering length a=-7.69-3.80i a.u. for ground state antihydrogen-helium collisions. Annihilation is found to dominate over elastic scattering up to a temperature about 3 K. Loosely bound metastable antihydrogen-helium states are also investigated, and it is found that a number of relatively long-lived states with up to three units of angular momentum exist.

Jonsell, S. [Department of Physics, Umeaa University, SE-90187 Umeaa (Sweden); Froelich, P.; Eriksson, S. [Department of Quantum Chemistry, Box 518, Uppsala University, SE-75120 Uppsala (Sweden); Strasburger, K. [Institute of Physical and Theoretical Chemistry, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw (Poland)

2004-12-01T23:59:59.000Z

459

Determination of heat conductivity and thermal diffusivity of waste glass melter feed: Extension to high temperatures  

SciTech Connect

The heat conductivity ({lambda}) and the thermal diffusivity (a) of reacting glass batch, or melter feed, control the heat flux into and within the cold cap, a layer of reacting material floating on the pool of molten glass in an all-electric continuous waste glass melter. After previously estimating {lambda} of melter feed at temperatures up to 680 deg C, we focus in this work on the {lambda}(T) function at T > 680 deg C, at which the feed material becomes foamy. We used a customized experimental setup consisting of a large cylindrical crucible with an assembly of thermocouples, which monitored the evolution of the temperature field while the crucible with feed was heated at a constant rate from room temperature up to 1100°C. Approximating measured temperature profiles by polynomial functions, we used the heat transfer equation to estimate the {lambda}(T) approximation function, which we subsequently optimized using the finite-volume method combined with least-squares analysis. The heat conductivity increased as the temperature increased until the feed began to expand into foam, at which point the conductivity dropped. It began to increase again as the foam turned into a bubble-free glass melt. We discuss the implications of this behavior for the mathematical modeling of the cold cap.

Rice, Jarrett A.; Pokorny, Richard; Schweiger, Michael J.; Hrma, Pavel R.

2014-05-12T23:59:59.000Z

460

Fluorescent temperature sensor  

DOE Patents (OSTI)

The present invention is a fluorescent temperature sensor or optical thermometer. The sensor includes a solution of 1,3-bis(1-pyrenyl)propane within a 1-butyl-1-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide ionic liquid solvent. The 1,3-bis(1-pyrenyl)propane remains unassociated when in the ground state while in solution. When subjected to UV light, an excited state is produced that exists in equilibrium with an excimer. The position of the equilibrium between the two excited states is temperature dependent.

Baker, Gary A [Los Alamos, NM; Baker, Sheila N [Los Alamos, NM; McCleskey, T Mark [Los Alamos, NM

2009-03-03T23:59:59.000Z

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
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461

High Temperature Superconductors  

Science Journals Connector (OSTI)

Abstract A brief review of the phenomenology of superconductivity, the distinction between type I and type II superconductors, and the application of type II superconductors is followed by a history of the theory of conventional superconductivity. Unconventional high-temperature superconductivity in the copper oxides is reviewed as a phenomenon occurring in narrow two-dimensional bands where the time for an electron transfer between like atoms is comparable to the period of an optical-mode lattice vibration. A family of iron pnictides containing layers of iron atoms may not require an alternative explanation of its high-temperature superconductivity.

J.B. Goodenough

2013-01-01T23:59:59.000Z

462

Design and Exergy Analysis of Combined Rankine Cycle Using LNG Cold Energy  

Science Journals Connector (OSTI)

Abstract In this study, a 90 MWe combined Rankine cycle utilizing LNG cold exergy was proposed. Utilizing LNG cold exergy and waste heat from the conventional steam cycle, this process was able to generate additional power in the CO2 organic Rankine cycle (ORC). A conventional steam cycle generates only 42 MW electric power; this combined Rankine cycle produced more than twice as much power as the conventional steam cycle while consuming the same amount of fossil fuel. Through parameter sensitivity analysis and exergy analysis, the optimum design and operating conditions were also determined. Finally, reduction of the power plant de-rate by introducing a CO2 capture process was also analyzed.

Ung Lee; Chonghun Han

2014-01-01T23:59:59.000Z

463

Stationary self-focusing of intense laser beam in cold quantum plasma using ramp density profile  

SciTech Connect

By using a transient density profile, we have demonstrated stationary self-focusing of an electromagnetic Gaussian beam in cold quantum plasma. The paper is devoted to the prospects of using upward increasing ramp density profile of an inhomogeneous nonlinear medium with quantum effects in self-focusing mechanism of high intense laser beam. We have found that the upward ramp density profile in addition to quantum effects causes much higher oscillation and better focusing of laser beam in cold quantum plasma in comparison to that in the classical relativistic case. Our computational results reveal the importance and influence of formation of electron density profiles in enhancing laser self-focusing.

Habibi, M. [Department of Physics, Shirvan Branch, Islamic Azad University, Shirvan (Iran, Islamic Republic of); Ghamari, F. [Department of Physics, Khorramabad Branch, Islamic Azad University, Khorramabad (Iran, Islamic Republic of)

2012-10-15T23:59:59.000Z

464

Waste Tank Size Determination for the Hanford River Protection Project Cold Test, Training, and Mockup Facility  

SciTech Connect

The objective of the study was to determine the minimum tank size for the Cold Test Facility process testing of Hanford tank waste. This facility would support retrieval of waste in 75-ft-diameter DSTs with mixer pumps and SSTs with fluidic mixers. The cold test model will use full-scale mixer pumps, transfer pumps, and equipment with simulated waste. The study evaluated the acceptability of data for a range of tank diameters and depths and included identifying how the test data would be extrapolated to predict results for a full-size tank.

Onishi, Yasuo; Wells, Beric E.; Kuhn, William L.

2001-03-30T23:59:59.000Z

465

Temperature differential detection device  

DOE Patents (OSTI)

A temperature differential detection device for detecting the temperature differential between predetermined portions of a container wall is disclosed as comprising a Wheatstone bridge circuit for detecting resistance imbalance with a first circuit branch having a first elongated wire element mounted in thermal contact with a predetermined portion of the container wall, a second circuit branch having a second elongated wire element mounted in thermal contact with a second predetermined portion of a container wall with the wire elements having a predetermined temperature-resistant coefficient, an indicator interconnected between the first and second branches remote from the container wall for detecting and indicating resistance imbalance between the first and second wire elements, and connector leads for electrically connecting the wire elements to the remote indicator in order to maintain the respective resistance value relationship between the first and second wire elements. The indicator is calibrated to indicate the detected resistance imbalance in terms of a temperature differential between the first and second wall portions.

Girling, Peter M. (Allentown, PA)

1986-01-01T23:59:59.000Z

466

Chemistry at High Temperatures  

Science Journals Connector (OSTI)

...347 the condensed phase. Both cases are...show the opposite behavior. These predictions...vapors. Condensed phase B203 B + B203 02...complex silicates and hydrates in high-temperature...characterized by phase diagrams (derived...doubt that thou-sands of new chemical materials...

John L. Margrave

1962-02-02T23:59:59.000Z

467

High Temperature Membrane Working Group  

Energy.gov (U.S. Department of Energy (DOE))

The High Temperature Membrane Working Group consists of government, industry, and university researchers interested in developing high temperature membranes for fuel cells.

468

Radial convection of finite ion temperature, high amplitude plasma blobs  

SciTech Connect

We present results from simulations of seeded blob convection in the scrape-off-layer of magnetically confined fusion plasmas. We consistently incorporate high fluctuation amplitude levels and finite Larmor radius (FLR) effects using a fully nonlinear global gyrofluid model. This is in line with conditions found in tokamak scrape-off-layers (SOL) regions. Varying the ion temperature, the initial blob width, and the initial amplitude, we found an FLR dominated regime where the blob behavior is significantly different from what is predicted by cold-ion models. The transition to this regime is very well described by the ratio of the ion gyroradius to the characteristic gradient scale length of the blob. We compare the global gyrofluid model with a partly linearized local model. For low ion temperatures, we find that simulations of the global model show more coherent blobs with an increased cross-field transport compared to blobs simulated with the local model. The maximal blob amplitude is significantly higher in the global simulations than in the local ones. When the ion temperature is comparable to the electron temperature, global blob simulations show a reduced blob coherence and a decreased cross-field transport in comparison with local blob simulations.

Wiesenberger, M., E-mail: Matthias.Wiesenberger@uibk.ac.at; Kendl, A. [Institute for Ion Physics and Applied Physics, Association EURATOM-ÖAW, University of Innsbruck, A-6020 Innsbruck (Austria); Madsen, J. [Association EURATOM-DTU, Department of Physics, Technical University of Denmark, 2800 Kgs. Lyngby (Denmark)

2014-09-15T23:59:59.000Z

469

A dominant role of oxygen additive on cold atmospheric-pressure He + O{sub 2} plasmas  

SciTech Connect

We present in this paper how oxygen additive impacts on the cold atmospheric-pressure helium plasmas by means of a one-dimensional fluid model. For the oxygen concentration [O{sub 2}]?>??0.1%, the influence of oxygen on the electron characteristics and the power dissipation becomes important, e.g., the electron density, the electron temperature in sheath, the electron-coupling power, and the sheath width decreasing by 1.6 to 16 folds with a two-log increase in [O{sub 2}] from 0.1% to 10%. Also the discharge mode evolves from the ? mode to the ? mode. The reactive oxygen species are found to peak in the narrow range of [O{sub 2}]?=?0.4%–0.9% in the plasmas, similar to their power-coupling values. This applies to their wall fluxes except for those of O* and O{sub 2}{sup ?}. These two species have very short lifetimes, thus only when generated in boundary layers within several micrometers next to the electrode can contribute to the fluxes. The dominant reactive oxygen species and the corresponding main reactions are schematically presented, and their relations are quantified for selected applications.

Yang, Aijun; Liu, Dingxin, E-mail: liudingxin@gmail.com, E-mail: xhw@mail.xjtu.edu.cn; Rong, Mingzhe; Wang, Xiaohua, E-mail: liudingxin@gmail.com, E-mail: xhw@mail.xjtu.edu.cn [Centre for Plasma Biomedicine, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049 (China); Kong, Michael G. [Centre for Plasma Biomedicine, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an 710049 (China); Frank Reidy Research Center for Bioelectrics, Old Dominion University, Norfolk, Virginia 23508 (United States); Department of Electrical and Computer Engineering, Old Dominion University, Norfolk, Virginia 23529 (United States)

2014-08-15T23:59:59.000Z

470

Fusion neutron irradiation of Ni(Si) alloys at high temperature  

SciTech Connect

Two Ni-4% Si alloys, with different cold work levels, are irradiated with 14 MeV fusion neutrons at 623 K, and their Curie temperatures are monitored during irradiation. The results are compared to those of an identical alloy irradiated by 2 MeV electrons. The results show that increasing dislocation density increases the Curie temperature change rate. At the same damage rate, the Curie temperature change rate for the alloy irradiated by 14 MeV fusion neutrons is only 6 to 7% of that for an identical alloy irradiated by 2 MeV electrons. It is well known that the migration of radiation induced defects contributes to segregation of silicon atoms at sinks in this alloy, causing the Curie temperature changes. The current results imply that the relative free defect production efficiency decreases from one for the electron irradiated sample to 6 to 7% for the fusion neutron irradiated sample. 17 refs., 4 figs., 1 tab.

Huang, J.S.; Guinan, M.W.; Hahn, P.A.

1987-09-01T23:59:59.000Z

471

CONFRONTING COLD DARK MATTER PREDICTIONS WITH OBSERVED GALAXY ROTATIONS  

SciTech Connect

The rich statistics of galaxy rotations as captured by the velocity function (VF) provide invaluable constraints on galactic baryon physics and the nature of dark matter (DM). However, the comparison of observed galaxy rotations against cosmological models is prone to subtle caveats that can easily lead to misinterpretations. Our analysis reveals full statistical consistency between {approx}5000 galaxy rotations, observed in line-of-sight projection, and predictions based on the standard cosmological model ({Lambda}CDM) at the mass-resolution of the Millennium simulation (H I line-based circular velocities above {approx}50 km s{sup -1}). Explicitly, the H I linewidths in the H I Parkes All Sky Survey (HIPASS) are found to be consistent with those in S{sup 3}-SAX, a post-processed semi-analytic model for the Millennium simulation. Previously found anomalies in the VF can be plausibly attributed to (1) the mass-limit of the Millennium simulation, (2) confused sources in HIPASS, (3) inaccurate inclination measurements for optically faint sources, and (4) the non-detectability of gas-poor early-type galaxies. These issues can be bypassed by comparing observations and models using linewidth source counts rather than VFs. We investigate if and how well such source counts can constrain the temperature of DM.

Obreschkow, Danail; Meyer, Martin; Power, Chris; Staveley-Smith, Lister [International Centre for Radio Astronomy Research (ICRAR), M468, University of Western Australia, 35 Stirling Hwy, Crawley, WA 6009 (Australia)] [International Centre for Radio Astronomy Research (ICRAR), M468, University of Western Australia, 35 Stirling Hwy, Crawley, WA 6009 (Australia); Ma, Xiangcheng [The University of Sciences and Technology of China, Centre for Astrophysics, Hefei, Anhui 230026 (China)] [The University of Sciences and Technology of China, Centre for Astrophysics, Hefei, Anhui 230026 (China); Zwaan, Martin [European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching b. Muenchen (Germany)] [European Southern Observatory, Karl-Schwarzschild-Str. 2, D-85748 Garching b. Muenchen (Germany); Drinkwater, Michael J. [School of Mathematics and Physics, The University of Queensland, Brisbane, QLD 4072 (Australia)] [School of Mathematics and Physics, The University of Queensland, Brisbane, QLD 4072 (Australia)

2013-04-01T23:59:59.000Z

472

Axion cold dark matter: status after Planck and BICEP2  

E-Print Network (OSTI)

We investigate the axion dark matter scenario (ADM), in which axions account for all of the dark matter in the Universe, in light of the most recent cosmological data. In particular, we use the Planck temperature data, complemented by WMAP E-polarization measurements, as well as the recent BICEP2 observations of B-modes. Baryon Acoustic Oscillation data, including those from the Baryon Oscillation Spectroscopic Survey, are also considered in the numerical analyses. We find that, in the minimal ADM scenario, the full dataset implies that the axion mass m_a = 82.2 pm 1.1 {\\mu}eV (corresponding to the Peccei-Quinn symmetry being broken at a scale f_a = (7.54 pm 0.10)*10^10 GeV), or m_a = 76.6 pm 2.6 {\\mu}eV (f_a = (8.08 pm 0.27)*10^10 GeV) when we allow for a non- standard effective number of relativistic species Neff . We also find a 2{\\sigma} preference for Neff > 3.046. The limit on the sum of neutrino masses is Sum m_{\

E. Di Valentino; E. Giusarma; M. Lattanzi; A. Melchiorri; O. Mena

2014-05-08T23:59:59.000Z

473

Cerro Prieto cold water injection: effects on nearby production wells  

SciTech Connect

The liquid-dominated Cerro Prieto geothermal field of northern Baja California, Mexico has been under commercial exploitation since 1973. During the early years of operation, all waste brines were sent to an evaporation pond built west of the production area. In 1989, cooled pond brines began to be successfully injected into the reservoir along the western boundary of the geothermal system. The injection rate varied over the years, and is at present about 20% of the total fluid extracted. As expected under the continental desert conditions prevailing in the area, the temperature and salinity of the pond brines change with the seasons, being higher during the summer and lower during the winter. The chemistry of pond brines is also affected by precipitation of silica, oxidation of H{sub 2}S and reaction with airborne clays. Several production wells in the western part of the field (CP-I area) showed beneficial effects from injection. The chemical (chloride, isotopic) and physical (enthalpy, flow rate) changes observed in producers close to the injectors are reviewed. Some wells showed steam flow increases, in others steam flow decline rates flattened. Because of their higher density, injected brines migrated downward in the reservoir and showed up in deep wells.

Truesdell, A.H.; Lippmann, M.J.; De Leon, J.; Rodriguez, M.H.

1999-07-01T23:59:59.000Z

474

Regime Transition of the North Atlantic Oscillation and the Extreme Cold Event over Europe in January–February 2012  

Science Journals Connector (OSTI)

In this paper, large-scale aspects for the onset of the extreme cold European weather event in January–February 2012 are investigated. It is shown that the outbreak of this extreme cold weather event may be attributed to the transition from a ...

Dehai Luo; Yao Yao; Steven B. Feldstein

2014-12-01T23:59:59.000Z

475

Cold drawn steel wires--processing, residual stresses and ductility--part I: metallography and finite element analyses  

E-Print Network (OSTI)

Cold drawn steel wires--processing, residual stresses and ductility--part I: metallography form 29 September 2005 ABSTRACT Cold drawing steel wires lead to an increase of their mechanical that, though the steel wires are plastically deformed up to strain levels as high as 3.5, a significant

476

Cold neutron prompt gamma activation analysis, a non-destructive technique for hydrogen level assessment in zirconium alloys  

E-Print Network (OSTI)

embrittlement by decreasing overall corrosion and/or by decreasing the amount of hydrogen ingress for a givenCold neutron prompt gamma activation analysis, a non-destructive technique for hydrogen level to quantitatively assess hydrogen concentration in zirconium alloys. The technique, called Cold Neutron Prompt Gamma

Motta, Arthur T.

477

The Active Site Is the Least Stable Structure in the Unfolding Pathway of a Multidomain Cold-Adapted ?-Amylase  

Science Journals Connector (OSTI)

...top). The break, which occurred...cold-adapted a-amylase has two stability...1 to 2 min on starch-containing agarose...haloplanktis a-amylase. Domain A (pink...electrophoresis down the gel. An inverse...cold-adapted a-amylase at 12C (left...with iodine for starch hydrolysis activity...

Khawar S. Siddiqui; Georges Feller; Salvino D'Amico; Charles Gerday; Laura Giaquinto; Ricardo Cavicchioli

2005-09-01T23:59:59.000Z

478

Energy-saving Renovation Technology Studies of Existing Residential Building in the Hot Summer and Cold Winter Summer Zone  

E-Print Network (OSTI)

The hot summer and cold winter zones are some of the key national construction energy conservation zones. In this paper, we analyzed the outside environment in the hot summer and cold winter zones and its influence on heat loss in an existing...

Dong, M.; Li, J.

2006-01-01T23:59:59.000Z

479

An Investigation of Cold Vortices in the Upper Troposphere over the Western North Pacific during the Warm Season  

Science Journals Connector (OSTI)

Sixty cold lows in the warm months (June–October) of 1982–87 (1984 missing) over the western North Pacific were studied by using rawinsonde data, airplane reports, and satellite cloud-tracked winds. The general characteristics of cold lows were ...

George Tai-Jen Chen; Lan-Fan Chou

1994-07-01T23:59:59.000Z

480

Light-scattering properties of plate and column ice crystals generated in a laboratory cold chamber  

E-Print Network (OSTI)

with a diode laser beam. This cloud chamber produces distinct plate and hollow column ice crystal types. The cloud chamber developed at the Desert Re- search Institute has been used to produce ice clouds composedLight-scattering properties of plate and column ice crystals generated in a laboratory cold chamber

Liou, K. N.

Note: This page contains sample records for the topic "lingering cold temperatures" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

Analysis of microearthquake data at Cold Lake and its applications to reservoir monitoring  

E-Print Network (OSTI)

-difference method, which highlights several tight event clusters. The deep cluster at a depth of 400 m, just above the oil reservoir, shows very high seismicity during the CSS processes.Asec- ond cluster is observed of the region. We analyzed a microearthquake data set from Cold Lake,Alberta, where heavy oil is extracted using

Snieder, Roel

482

Contact-Free Inactivation of Candida albicans Biofilms by Cold Atmospheric Air Plasma  

Science Journals Connector (OSTI)

...The SMD plasma device operates...microdischarges. This plasma discharge...with cold atmospheric pressure plasma indicates...the maximum area that can be treated is large (9 by 13...with a frequency of 1 kHz...Commission Non-Ionizing...

Tim Maisch; Tetsuji Shimizu; Georg Isbary; Julia Heinlin; Sigrid Karrer; Tobias G. Klämpfl; Yang-Fang Li; Gregor Morfill; Julia L. Zimmermann

2012-03-30T23:59:59.000Z

483

Verification of Mesoscale NWP Forecasts of Abrupt Cold Frontal Wind Changes  

Science Journals Connector (OSTI)

During a wildfire, a sharp wind change can lead to an abrupt increase in fire activity and change the rate of spread, endangering firefighters working on what had been the flank of the fire. In southeastern Australia, routine forecast of cold-...

Yimin Ma; Xinmei Huang; Graham A. Mills; Kevin Parkyn

2010-02-01T23:59:59.000Z

484

Numerical Studies of Collective Phenomena in Two-Dimensional Electron and Cold Atom Systems  

SciTech Connect

Numerical calculations were carried out to investigate a number of outstanding questions in both two-dimensional electron and cold atom systems. These projects aimed to increase our understanding of the properties of and prospects for non-Abelian states in quantum Hall matter.

Rezayi, Edward

2013-07-25T23:59:59.000Z

485

Design and Analyisi of a Self-centered Cold Mass Support for the MICE Coupling Magnet  

SciTech Connect

The Muon Ionization Cooling Experiment (MICE) consists of eighteen superconducting solenoid coils in seven modules, which are magnetically hooked together since there is no iron to shield the coils and the return flux. The RF coupling coil (RFCC) module consists of a superconducting coupling solenoid mounted around four conventional conducting 201.25 MHz closed RF cavities. The coupling coil will produce up to a 2.2 T magnetic field on the centerline to keep the beam within the RF cavities. The peak magnetic force on the coupling magnet from other magnets in MICE is up to 500 kN in longitudinal direction, which will be transferred to the base of the RF coupling coil (RFCC) module through a cold mass support system. A self-centered double-band cold mass support system with intermediate thermal interruption is applied to the coupling magnet, and the design is introduced in detail in this paper. The thermal and structural analysis on the cold mass support assembly has been carried out using ANSYS. The present design of the cold mass support can satisfy with the stringent requirements for the magnet center and axis azimuthal angle at 4.2 K and fully charged.

Wang, Li; Pan, Heng; Wu, Hong; Li, S. Y.; Guo, Xing Long; Zheng, Shi Xian; Green, Michael A.

2011-05-04T23:59:59.000Z

486

NASA Cold Land Processes Experiment (CLPX 2002/03): Local Scale Observation Site  

Science Journals Connector (OSTI)

The local scale observation site (LSOS) is the smallest study site (0.8 ha) of the 2002/03 Cold Land Processes Experiment (CLPX) and is located within the Fraser mesocell study area. It was the most intensively measured site of the CLPX, and ...

Janet Hardy; Robert Davis; Yeohoon Koh; Don Cline; Kelly Elder; Richard Armstrong; Hans-Peter Marshall; Thomas Painter; Gilles Castres Saint-Martin; Roger DeRoo; Kamal Sarabandi; Tobias Graf; Toshio Koike; Kyle McDonald

2008-12-01T23:59:59.000Z

487

Roughening of a smooth cold Ag surface by Ag overlayers studied by differential reflectivity  

E-Print Network (OSTI)

L- 99 Roughening of a smooth cold Ag surface by Ag overlayers studied by differential reflectivity. The modifications of the optical properties due to the roughening of the surface are analysed, the annealing of the optical properties due to the early roughening of thesurface, we investigate the annealing

Paris-Sud XI, Université de

488

Observation of Solvent Penetration during Cold Denaturation of E. coli Phosphofructokinase-2  

E-Print Network (OSTI)

Observation of Solvent Penetration during Cold Denaturation of E. coli Phosphofructokinase-2 Ce; unexpectedly, amide exchange increased throughout the protein over time at 3 C. The rate of increase in amide exchange over time at 3 C was the same for each region and equaled the rate of dimer dissociation measured

Komives, Elizabeth A.

489

Precision Measurement of PArity Violation in Polarized Cold Neutron Capture on the Proton: the NPDGamma Experiment  

E-Print Network (OSTI)

The NPDGamma experiment at the Los Alamos Neutron Science Center (LANSCE) is dedicated to measure with high precision the parity violating asymmetry in the $\\gamma$ emission after capture of spin polarized cold neutrons in para-hydrogen. The measurement will determine unambiguously the weak pion-nucleon-nucleon ($\\pi NN$) coupling constant {\\it f$^1_{\\pi}$}

Lauss Bernhard

2006-01-02T23:59:59.000Z

490

OVERLAP OF PREDICTED COLD-WATER CORAL HABITAT AND BOTTOM-CONTACT FISHERIES  

E-Print Network (OSTI)

and Environmental Management Project No. 476 © Jessica L. Finney 2009 SIMON FRASER UNIVERSITY Fall 2009 All rights of Resource Management Title of Thesis: Overlap of predicted cold-water coral habitat and bottom- contact School of Resource and Environmental Management Simon Fraser University

491

Curriculum Evolution at Air Command and Staff College in the Post-Cold War Era  

E-Print Network (OSTI)

This qualitative study used a historical research method to eliminate the gap in the historical knowledge of Air Command and Staff College (ACSC) curriculum evolution in the post-Cold War era. This study is the only known analysis of the forces...

Donovan, William Robert

2011-02-22T23:59:59.000Z

492

WARM EXTENDED DENSE GAS AT THE HEART OF A COLD COLLAPSING DENSE CORE  

SciTech Connect

In order to investigate when and how the birth of a protostellar core occurs, we made survey observations of four well-studied dense cores in the Taurus molecular cloud using CO transitions in submillimeter bands. We report here the detection of unexpectedly warm (approx30-70 K), extended (radius of approx2400 AU), dense (a few times 10{sup 5} cm{sup -3}) gas at the heart of one of the dense cores, L1521F (MC27), within the cold dynamically collapsing components. We argue that the detected warm, extended, dense gas may originate from shock regions caused by collisions between the dynamically collapsing components and outflowing/rotating components within the dense core. We propose a new stage of star formation, 'warm-in-cold core stage (WICCS)', i.e., the cold collapsing envelope encases the warm extended dense gas at the center due to the formation of a protostellar core. WICCS would constitute a missing link in evolution between a cold quiescent starless core and a young protostar in class 0 stage that has a large-scale bipolar outflow.

Shinnaga, Hiroko; Phillips, Thomas G. [California Institute of Technology Submillimeter Observatory (CSO), 111 Nowelo Street, Hilo, HI 96720 (United States); Furuya, Ray S. [Subaru Telescope, National Astronomical Observatory of Japan, 650 North A'ohoku Place, Hilo, HI 96720 (United States); Kitamura, Yoshimi, E-mail: shinnaga@submm.caltech.ed, E-mail: tgp@submm.caltech.ed, E-mail: rsf@subaru.naoj.or, E-mail: kitamura@isas.jaxa.j [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510 (Japan)

2009-12-01T23:59:59.000Z

493

Diffusion of cold-atomic gases in the presence of an optical speckle potential  

SciTech Connect

We consider diffusion of a cold Fermi gas in the presence of a random optical speckle potential. The evolution of the initial atomic cloud in space and time is discussed. Analytical and numerical results are presented in various regimes. Diffusion of a Bose-Einstein condensate is also briefly discussed and similarity with the Fermi gas case is pointed out.

Beilin, L.; Gurevich, E.; Shapiro, B. [Department of Physics, Technion-Israel Institute of Technology, Haifa IL-32000 (Israel)

2010-03-15T23:59:59.000Z

494

THE COLD-CURRENT SYSTEM OF THE PACIFIC, AND SOURCE OF THE PACIFIC COAST CURRENT  

Science Journals Connector (OSTI)

...with the increasing cold of the fall and winter mQnths, also cannot...westward to Hawaii, beyond which group it becomes merged into the great...entire coast of California from Klamath to Los Angeles this current...This im-parts to that favored group a uniformly subtropical climate...

S. E. BISHOP

1904-09-09T23:59:59.000Z

495

Modification of Glassy Carbon Surfaces by an Atmospheric Pressure Cold Plasma H. Mortensen 1  

E-Print Network (OSTI)

Modification of Glassy Carbon Surfaces by an Atmospheric Pressure Cold Plasma Torch H. Mortensen 1. Bindslev 1 1 Optics and Plasma Research Department, 2 Danish Polymer Centre, 3 Materials Research/FAX: +45-4677-4532/+45-4677-4565. E-mail: henrik.junge.mortensen@risoe.dk Plasma treatment of glassy carbon

496

Cold-hollow-cathode arc discharge in crossed electric and magnetic fields  

Science Journals Connector (OSTI)

A crossed-field cold-hollow-cathode arc is stable at low working gas pressures...?2–10?1 Pa, magnetic-field-and gas-dependent arcing voltages of 20–50 V, and discharge currents of 20–200 A. This is ... produced o...

P. M. Schanin; N. N. Koval; Yu. Kh. Akhmadeev; S. V. Grigoriev

2004-05-01T23:59:59.000Z

497

Trapping cold atoms using surface-grown carbon nanotubes P. G. Petrov,1,* S. Machluf,1  

E-Print Network (OSTI)

Trapping cold atoms using surface-grown carbon nanotubes P. G. Petrov,1,* S. Machluf,1 S. Younis,1 atomic clouds into magnetic traps created by single-wall carbon nanotubes grown directly onto dielectric surfaces. We show that atoms may be captured for experimen- tally sustainable nanotube currents, generating

Joselevich, Ernesto

498

Spectroscopic Observation of Resonant Electric Dipole-Dipole Interactions between Cold Rydberg Atoms  

E-Print Network (OSTI)

Atoms K. Afrousheh, P. Bohlouli-Zanjani, D. Vagale, A. Mugford, M. Fedorov, and J. D. D. Martin between cold Rydberg atoms were observed using microwave spectroscopy. Laser-cooled 85Rb atoms pulse transferred a fraction of these Rydberg atoms to the 46p3=2 state. A second microwave pulse

Le Roy, Robert J.

499