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Note: This page contains sample records for the topic "repeated airborne magnetic" 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.


1

A refined biomonitoring study of airborne particulate matter pollution in Rome, with magnetic measurements on Quercus Ilex tree leaves  

Science Journals Connector (OSTI)

......delineate spatial airborne anthropogenic PM...the PM magnetic fraction which can then be...constructions or natural fires. This study has...particles in the airborne PM by means of standard...idling cars do not release an equally high...of the magnetic fraction. In this study......

Michael Szönyi; Leonardo Sagnotti; Ann M. Hirt

2008-04-01T23:59:59.000Z

2

Repeatability of measurements of residential magnetic fields and wire codes  

SciTech Connect (OSTI)

Several epidemiological studies have been based on wire codes (i.e., categories of electrical wiring configurations near residences) or on in-home spot measurements of magnetic flux density (MFD) as surrogates for short- and long-term exposure of children and adults to residential magnetic fields. We used wire code and MFD measurements that were made in 81 Colorado homes in 1985 and again in 1990 to assess their repeatability over periods of 0-24 h and 5 years. These homes, a subset of those lived in by subjects from the case-control study of Savitz et al. [Am J Epidemiol 128:21-38, 1988], were divided into four approximately equally sized groups that were differentiated by wire code and by case-control status. Eight homes were assigned wire codes in 1990 that differed from the 1985 coding of Savitz and colleagues [1988]; of these, seven were coded as high-current configuration (HCC) and one as low-current configuration (LCC) in 1985. Overall, 37 homes were coded as HCC in 1990 compared with 38 homes in 1985. Coding differences were due to differing distance measurements (four homes), differing thick vs. thin categorization of primary-distribution line-conductor sizes (two homes), differing first-span vs. second-span categorization of secondary wires (one home), and physical changes in proximate electrical wiring (one home). Coefficients of correlation between MFD spot measurements that were separated in time by 0-24 h range between 0.70 and 0.90. The coefficient between spot measurements made in 1985 and then again in 1990 is 0.70. These coefficients are similar for HCC and LCC homes and do not depend on whether residential appliances were turned on or off. The data show (at least for the portion of Colorado studied) that residential wire code and, more surprisingly, spot MFD measurements, are fairly reliable over 0-24-h and 5-year periods.

Dovan, T.; Kaune, W.T.; Savitz, D.A. (ENERTECH Consultants, Campbell, CA (United States))

1993-01-01T23:59:59.000Z

3

COLLECTION OF AIRBORNE PARTICLES BY A HIGH-GRADIENT PERMANENT MAGNETIC METHOD  

SciTech Connect (OSTI)

We report on the use of magnetic force in collection of airborne particles by a high- gradient permanent magnetic separation (HGPMS) device. Three aerosol particles of different magnetic susceptibility (NaCl, CuO, and Fe2O3) were generated in the electrical mobility size range of 10 to 200 nm and were used to study HGPMS collection. One HGPMS matrix element, made of stainless steel wool, was used in the device configuration. Three flow rates were selected to simulate the environmental wind speeds of interest to the study. Magnetic force was found to exhibit an insignificant effect on the separation of NaCl particles, even in the HGPMS configuration. Diffusion was a major mechanism in the removal of the diamagnetic particles; however, diffusion is insignificant under the influence of a high-gradient magnetic field for paramagnetic or ferromagnetic particles. The HGPMS showed high-performance collection (> 99%) of paramagnetic CuO and ferromagnetic Fe2O3 particles for particle sizes greater than or equal to 60 nm. As the wind speed increases, the influence of the magnetic force weakens, and the capability to remove particles from the gas stream diminishes. The results suggest that the HGPMS principle could be explored for development of an advanced miniaturized passive aerosol collector.

Cheng, Mengdawn [ORNL; Allman, Steve L [ORNL; Ludtka, Gerard Michael [ORNL; Avens, Larry R [ORNL

2014-01-01T23:59:59.000Z

4

A 3D Magnetic Structure Of Izu-Oshima Volcano And Their Changes After The  

Open Energy Info (EERE)

Magnetic Structure Of Izu-Oshima Volcano And Their Changes After The Magnetic Structure Of Izu-Oshima Volcano And Their Changes After The Eruption In 1986 As Estimated From Repeated Airborne Magnetic Surveys Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A 3D Magnetic Structure Of Izu-Oshima Volcano And Their Changes After The Eruption In 1986 As Estimated From Repeated Airborne Magnetic Surveys Details Activities (0) Areas (0) Regions (0) Abstract: A 3D magnetic inversion method using a conjugate gradient method (CG method) was developed for constructing 3D magnetization models of a volcanic edifice and applied to aeromagnetic anomalies of Izu-Oshima Volcano surveyed in 1986 and in 1997. The calculated results of the 1986 data show that the volcanic edifice of Izu-Oshima Volcano has a mean magnetization intensity ranging from 10.4 to 12.1 A/m. The derived 3D

5

A refined biomonitoring study of airborne particulate matter pollution in Rome, with magnetic measurements on Quercus Ilex tree leaves  

Science Journals Connector (OSTI)

......causes adverse effects to human health. Specific magnetic susceptibility...proposing guidelines concerning human health and the exposure of the population...iron-bearing magnetic PM is dangerous to the human health due to its aggressively reacting......

Michael Szönyi; Leonardo Sagnotti; Ann M. Hirt

2008-04-01T23:59:59.000Z

6

ROBOT REPEATABILITY  

Science Journals Connector (OSTI)

Robots are used in repetitive and monotonous operations. Robot repeatability is the ability of the robot to return to the same point. This ability is essential for the robot to carryout repetitive operations.

2000-01-01T23:59:59.000Z

7

Geophex Airborne Unmanned Survey System  

SciTech Connect (OSTI)

Ground-based surveys place personnel at risk due to the proximity of buried unexploded ordnance (UXO) items or by exposure to radioactive materials and hazardous chemicals. The purpose of this effort is to design, construct, and evaluate a portable, remotely-piloted, airborne, geophysical survey system. This non-intrusive system will provide stand-off capability to conduct surveys and detect buried objects, structures, and conditions of interest at hazardous locations. During a survey, the operators remain remote from, but within visual distance of, the site. The sensor system never contacts the Earth, but can be positioned near the ground so that weak geophysical anomalies can be detected. The Geophex Airborne Unmanned Survey System (GAUSS) is designed to detect and locate small-scale anomalies at hazardous sites using magnetic and electromagnetic survey techniques. The system consists of a remotely-piloted, radio-controlled, model helicopter (RCH) with flight computer, light-weight geophysical sensors, an electronic positioning system, a data telemetry system, and a computer base-station. The report describes GAUSS and its test results.

Won, I.L.; Keiswetter, D.

1995-12-31T23:59:59.000Z

8

Repeat-until-success quantum repeaters  

E-Print Network [OSTI]

We propose a repeat-until-success protocol to improve the performance of probabilistic quantum repeaters. Quantum repeaters rely on passive static linear optics elements and photodetectors to perform Bell-state measurements (BSMs). Conventionally, the success rate of these BSMs cannot exceed 50%, which is an impediment for entanglement swapping between distant quantum memories. Every time that a BSM fails, entanglement needs to be re-distributed between the corresponding memories in the repeater link. The key ingredient in our scheme is a repeatable BSM. Although it too relies only on linear optics and photo-detection, it ideally allows us to repeat every BSM until it succeeds. This, in principle, can turn a probabilistic quantum repeater into a deterministic one. Under realistic conditions, where our measurement devices are lossy, our repeatable BSMs may also fail. However, we show that by using additional threshold detectors, we can improve the entanglement generation rate between one and two orders of magnitude as compared to the probabilistic repeater systems that rely on conventional BSMs. This improvement is sufficient to make the performance of probabilistic quantum repeaters comparable with some of existing proposals for deterministic quantum repeaters.

David Edward Bruschi; Thomas M. Barlow; Mohsen Razavi; Almut Beige

2014-07-12T23:59:59.000Z

9

Classifying Airborne Particles  

Science Journals Connector (OSTI)

Considering the selective Rayleigh light scattering behaviour by small particles, this study adopts a new technique to classify nano-scale airborne particles with colour histogram features. Noise was generated using scattered light by five different ... Keywords: Particle classification, Rayleigh scattering, noise histogram, histogram maximum value index

Kapila K. Pahalawatta; Richard Green

2011-12-01T23:59:59.000Z

10

Optical Airborne Particle Counter Operation  

Science Journals Connector (OSTI)

For most cleanroom airborne particle measurements, an optical single particle ... or surrogates of the product or of the cleanroom environment. The last procedure is used to...

Alvin Lieberman

1992-01-01T23:59:59.000Z

11

Airborne electromagnetic surveys as a reconnaissance technique...  

Open Energy Info (EERE)

Airborne electromagnetic surveys as a reconnaissance technique for geothermal exploration Abstract INPUT airborne electromagnetic (AEM) surveys were conducted during 1979 in five...

12

Modeling for Airborne Contamination  

SciTech Connect (OSTI)

The objective of Modeling for Airborne Contamination (referred to from now on as ''this report'') is to provide a documented methodology, along with supporting information, for estimating the release, transport, and assessment of dose to workers from airborne radioactive contaminants within the Monitored Geologic Repository (MGR) subsurface during the pre-closure period. Specifically, this report provides engineers and scientists with methodologies for estimating how concentrations of contaminants might be distributed in the air and on the drift surfaces if released from waste packages inside the repository. This report also provides dose conversion factors for inhalation, air submersion, and ground exposure pathways used to derive doses to potentially exposed subsurface workers. The scope of this report is limited to radiological contaminants (particulate, volatile and gaseous) resulting from waste package leaks (if any) and surface contamination and their transport processes. Neutron activation of air, dust in the air and the rock walls of the drift during the preclosure time is not considered within the scope of this report. Any neutrons causing such activation are not themselves considered to be ''contaminants'' released from the waste package. This report: (1) Documents mathematical models and model parameters for evaluating airborne contaminant transport within the MGR subsurface; and (2) Provides tables of dose conversion factors for inhalation, air submersion, and ground exposure pathways for important radionuclides. The dose conversion factors for air submersion and ground exposure pathways are further limited to drift diameters of 7.62 m and 5.5 m, corresponding to the main and emplacement drifts, respectively. If the final repository design significantly deviates from these drift dimensions, the results in this report may require revision. The dose conversion factors are further derived by using concrete of sufficient thickness to simulate the drift walls. The gamma-ray scattering properties of concrete are sufficiently similar to those of the host rock and proposed insert material; use of concrete will have no significant impact on the conclusions. The information in this report is presented primarily for use in performing pre-closure radiological safety evaluations of radiological contaminants, but it may also be used to develop strategies for contaminant leak detection and monitoring in the MGR. Included in this report are the methods for determining the source terms and release fractions, and mathematical models and model parameters for contaminant transport and distribution within the repository. Various particle behavior mechanisms that affect the transport of contaminant are included. These particle behavior mechanisms include diffusion, settling, resuspension, agglomeration and other deposition mechanisms.

F.R. Faillace; Y. Yuan

2000-08-31T23:59:59.000Z

13

Airborne Wind Turbine  

SciTech Connect (OSTI)

Broad Funding Opportunity Announcement Project: Makani Power is developing an Airborne Wind Turbine (AWT) that eliminates 90% of the mass of a conventional wind turbine and accesses a stronger, more consistent wind at altitudes of near 1,000 feet. At these altitudes, 85% of the country can offer viable wind resources compared to only 15% accessible with current technology. Additionally, the Makani Power wing can be economically deployed in deep offshore waters, opening up a resource which is 4 times greater than the entire U.S. electrical generation capacity. Makani Power has demonstrated the core technology, including autonomous launch, land, and power generation with an 8 meter wingspan, 20 kW prototype. At commercial scale, Makani Power aims to develop a 600 kW, 28 meter wingspan product capable of delivering energy at an unsubsidized cost competitive with coal, the current benchmark for low-cost power.

None

2010-09-01T23:59:59.000Z

14

Multiple phase transitions found in a magnetic Heusler alloy and thermodynamics of their magnetic internal energy  

E-Print Network [OSTI]

a devil's staircase as it repeatedly achieves the same final magnetic state. Using experimental values

Chopra, Harsh Deep

15

REPEAT SURVEYS OF MACEDONIA  

Science Journals Connector (OSTI)

We present our geomagnetic repeat station work in the Republic of Macedonia performed during the years 2002, 2003 and 2004. A total of 15 stations were established. New stations were created as the localizatio...

JEAN L. RASSON; MARJAN DELIPETROV

2006-01-01T23:59:59.000Z

16

Magnetism  

Science Journals Connector (OSTI)

Historically, magnetism is related to rock magnetism, due to a few minerals exhibiting spontaneous magnetization. Attractive properties of magnetite were already known in Antiquity and were used for navigation...

Guillaume Morin

1998-01-01T23:59:59.000Z

17

magnetism  

Science Journals Connector (OSTI)

magnetism [A class of physical phenomena associated with moving electricity, including the mutual mechanical forces among magnets and electric currents] ? Magnetismus m

2014-08-01T23:59:59.000Z

18

Magnetism  

Science Journals Connector (OSTI)

... dipoles in applied fields". It deals with the classical (Langevin) theory of para-magnetism, anisotropy fields and magnetic measurements. In the next chapter "Atomic structure" the author ... special relevance to ferrites and the inclusion of a quite lengthy discussion of Pauli para-magnetism and of Stoner's treatment of itinerant electron ferromagnetism, though it does much to ...

E. W. LEE

1972-03-31T23:59:59.000Z

19

Geophex airborne unmanned survey system  

SciTech Connect (OSTI)

The purpose of this effort is to design, construct, and evaluate a portable, remotely-piloted, airborne, geophysical survey system. This nonintrusive system will provide {open_quotes}stand-off{close_quotes} capability to conduct surveys and detect buried objects, structures, and conditions of interest at hazardous locations. This system permits two operators to rapidly conduct geophysical characterization of hazardous environmental sites. During a survey, the operators remain remote from, but within visual distance, of, the site. The sensor system never contacts the Earth, but can be positioned near the ground so that weak anomalies can be detected.

Won, I.J.; Taylor, D.W.A.

1995-03-01T23:59:59.000Z

20

Magnetism  

Science Journals Connector (OSTI)

... THIS is a good book, and we are glad to see the subject of magnetism fully treated in a popularly written text-book. It is a second edition of ... of importance, accuracy, and exhaustiveness, places the present treatise, as far as terrestrial magnetism is concerned, much before any similar book with which we are acquainted. The correction ...

JAMES STUART

1872-03-07T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

MSIV leakage airborne iodine transport  

SciTech Connect (OSTI)

Gaseous iodine deposits on surfaces exposed to vapors. Basic chemical and physical principles predict this behavior, and several laboratory and in-plant measurements demonstrate the characteristic. An empirical model was developed that describes the deposition, resuspension, and transformation of airborne radioiodine molecular species as a stream containing these forms moves along its pathway. The model uses a data base of measured values of deposition and resuspension rates in its application and describes the conversion of the more reactive inorganic iodine species I[sub 2] to the less reactive organic species CH[sub 3]I as the iodine deposits and resuspends along the path. It also considers radioactive decay and chemical surface bonding during residence on surfaces. For the 8-day [sup 131]I, decay during the airborne portion of the transport is negligible. Verification of the model included measurement tests of long gaseous-activity sampling lines of different diameters, operated at different flow rates and stream temperatures. The model was applied to the streams at a boiling water reactor nuclear power plant to describe the transport through leaking main steam isolation valves (MSIVs), following a loss-of-coolant accident.

Cline, J.E. (Cline Associates Inc., Rockville, MD (United States))

1993-01-01T23:59:59.000Z

22

SAFARI 2000 MODIS Airborne Simulator Data  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Airborne Simulator Data Airborne Simulator Data The ORNL DAAC announces the release of a new SAFARI 2000 data set. The data set "SAFARI 2000 MODIS Airborne Simulator Data, Southern Africa, Dry Season 2000" contains MODIS Airborne Simulator (MAS) multispectral data collected during the SAFARI 2000 project. Twenty flights with the MAS instrument were undertaken over Southern Africa by the NASA ER-2 aircraft during August and September 2000. The MAS spectrometer collects 50 multispectral bands at 16-bit resolution with a ground resolution of 50 meters from 20,000 meters altitude and a cross track scan width of 85.92 degrees. This data set is organized by flight, and each flight consists of several straight-line segments called tracks. There is a MAS multispectral data file for each track. The data are available in Hierarchical Data Format

23

Principles for Sampling Airborne Radioactivity from Stacks  

SciTech Connect (OSTI)

This book chapter describes the special processes involved in sampling the airborne effluents from nuclear faciities. The title of the book is Radioactive Air Sampling Methods. The abstract for this chapter was cleared as PNNL-SA-45941.

Glissmeyer, John A.

2010-10-18T23:59:59.000Z

24

Survey of airborne mold flora in Panama  

Science Journals Connector (OSTI)

A survey of the airborne fungi was carried out for one year. Petri plates containing Sabouraud's medium were exposed, eight times monthly, at each of six collection sites. A total of 3306 colonies were recovered.

Robert L. Taylor; Archibald W. Mc Fadden

25

An Airborne APT Weather Satellite Imaging System  

Science Journals Connector (OSTI)

This paper describes the development of a novel airborne system that receives a real-time imagery broadcast in the Automatic Picture Transmission (APT) format from polar-orbiting weather satellites. The availability of such real-time imagery ...

James E. Jordan; David L. Marcotte; G. W. K. Moore

1998-02-01T23:59:59.000Z

26

magnets  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

I I Painless Physics Articles BEAM COOLING August 2, 1996 By Leila Belkora, Office of Public Affairs ACCELERATION August 16, 1996 By Dave Finley, Accelerator Division Head RF August 30, 1996 By Pat Colestock, Accelerator Division FIXED TARGET PHYSICS September 20, 1996 By Peter H. Garbincius, Physics Section FIXED TARGET PHYSICS PART DEUX October 16, 1996 By Peter H. Garbincius, Physics Section and Leila Belkora, Office of Public Affaris CROSS SECTION November 1, 1996 By Doreen Wackeroth, Theoretical Physics Edited by Leila Belkora, Office of Public Affaris MAGNETS PART I November 15, 1996 By Hank Glass, Technical Support Section Edited by Donald Sena, Office of Public Affairs MAGNETS PART II January 10, 1997 By Hank Glass, Technical Support Section Edited by Donald Sena, Office of Public Affairs

27

Clean enough for industry? An airborne geophysical case study  

SciTech Connect (OSTI)

Data from two airborne geophysical surveys of the Department of Energy`s Oak Ridge Reservation (ORR) were extremely valuable in deciding whether a 1000-acre (400 hectare) parcel of the ORR should be released to the City of Oak Ridge for industrial development. Our findings, based on electromagnetic and magnetic data, were incorporated in the federally mandated Environmental Assessment Statement (EAS), and in general supported claims that this land was never used as a hazardous waste disposal site. We estimated the amount of iron required to produce each anomaly using a simple dipole model. All anomalies with equivalent sources greater than approximately 1000 kg of iron were checked in the field, and the source of all but one identified as either a bridge, reinforced concrete debris, or a similarly benign object. Additionally, some smaller anomalies (equivalent sources of roughly 500 kg) have been checked; thus far, these also have innocuous sources. Airborne video proved invaluable in identifying logging equipment as the source of some of these anomalies. Geologic noise may account for some of the remaining anomalies. Naturally occurring accumulations of magnetic minerals in the soil on the ORR have been shown to produce anomalies which, at a sensor height of 30 m, are comparable to the anomaly produced by about 500 kg of iron. By comparison, the electronic noise of the magnetic gradiometer, 0.01--0.02 nT/m, is equivalent to only about 50--100 kg of iron at a 30 m sensor height. The electromagnetic data, combined with field mapping of karst structures, provided evidence of a northeast-southwest striking conduit spanning the parcel. The possible existence of a karst conduit led the EAS authors to conclude that this is a ``sensitive hydrologic setting.`` We conclude that aerial geophysics is an extremely cost-effective, and efficient technique for screening large tracts of land for environmental characterization.

Nyquist, J.E.; Beard, L.P.

1996-02-01T23:59:59.000Z

28

Active airborne contamination control using electrophoresis  

SciTech Connect (OSTI)

In spite of our best efforts, radioactive airborne contamination continues to be a formidable problem at many of the Department of Energy (DOE) weapons complex sites. For workers that must enter areas with high levels of airborne contamination, personnel protective equipment (PPE) can become highly restrictive, greatly diminishing productivity. Rather than require even more restrictive PPE for personnel in some situations, the Rocky Flats Plant (RFP) is actively researching and developing methods to aggressively combat airborne contamination hazards using electrophoretic technology. With appropriate equipment, airborne particulates can be effectively removed and collected for disposal in one simple process. The equipment needed to implement electrophoresis is relatively inexpensive, highly reliable, and very compact. Once airborne contamination levels are reduced, less PPE is required and a significant cost savings may be realized through decreased waste and maximized productivity. Preliminary ``cold,`` or non-radioactive, testing results at the RFP have shown the technology to be effective on a reasonable scale, with several potential benefits and an abundance of applications.

Veatch, B.D.

1994-06-01T23:59:59.000Z

29

New Sampling Methods for Airborne Microorganisms  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

New Sampling Methods for Airborne Microorganisms New Sampling Methods for Airborne Microorganisms Speaker(s): Klaus Willeke Date: February 27, 2001 - 12:00pm Location: Bldg 90 Seminar Host/Point of Contact: David Faulkner Klaus Willeke and his international team of engineers, physicists, microbiologists, industrial hygienists and environmental scientists have worked for about 15 years on the development of new methods for sampling airborne microorganisms. The following topics will be highlighted: long-term bioaerosol sampling into liquid by swirling air motion ("Biosampler"); personal aerosol sampling with low wind sensitivity and highfilter deposit uniformity ("Button Aerosol Sampler"); collection of microorganisms by electrostatic means; source testing as a predictor for microorganism release from surfaces; particle concentrating from large air

30

Airborne Gravity Survey | Open Energy Information  

Open Energy Info (EERE)

Airborne Gravity Survey Airborne Gravity Survey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Airborne Gravity Survey Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Gravity Techniques Parent Exploration Technique: Gravity Techniques Information Provided by Technique Lithology: Distribution of density in the subsurface enables inference of rock type. Stratigraphic/Structural: Delineation of steeply dipping formations, geological discontinuities and faults, intrusions and the deposition of silicates due to hydrothermal activity. Hydrological: Density of sedimentary rocks are strongly influenced by fluid contained within pore space. Dry bulk density refers to the rock with no moisture, while the wet bulk density accounts for water saturation; fluid content may alter density by up to 30%.(Sharma, 1997)

31

Airborne Electromagnetic Survey | Open Energy Information  

Open Energy Info (EERE)

Airborne Electromagnetic Survey Airborne Electromagnetic Survey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Airborne Electromagnetic Survey Details Activities (2) Areas (2) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Electrical Techniques Parent Exploration Technique: Electromagnetic Techniques Information Provided by Technique Lithology: provide data on rock type and mineral content Stratigraphic/Structural: Hydrological: can be used to detect changes in density of fluids and indicate if there is salt water intrusion Thermal: Cost Information Low-End Estimate (USD): 48.274,827 centUSD 0.0483 kUSD 4.827e-5 MUSD 4.827e-8 TUSD / mile Median Estimate (USD): 317.3831,738 centUSD 0.317 kUSD

32

Micro-Electron Spin Resonance for Airborne Soot Measurement  

Broader source: Energy.gov [DOE]

A real-time method for airborne soot concentration measurement using a miniaturized electron spin resonance sensor is presented.

33

Hybrid quantum repeater with encoding  

E-Print Network [OSTI]

We present an encoded hybrid quantum repeater scheme using qubit-repetition and Calderbank-Shor-Steane codes. For the case of repetition codes, we propose an explicit implementation of the quantum error-correction protocol. Moreover, we analyze the entangled-pair distribution rate for the hybrid quantum repeater with encoding and we clearly identify a triple trade-off between the efficiency of the codes, the memory decoherence time, and the local gate errors. Finally, we show that in the presence of reasonable imperfections our system can achieve rates of roughly 24 Hz per memory for 20 km repeater spacing, a final distance of 1280 km, and a final fidelity of about 0.95.

Nadja K. Bernardes; Peter van Loock

2011-05-18T23:59:59.000Z

34

Assessing inhalation exposure from airborne soil contaminants  

SciTech Connect (OSTI)

A method of estimation of inhalation exposure to airborne soil contaminants is presented. this method is derived from studies of airborne soil particles with radioactive tags. The concentration of contaminants in air (g/m{sup 3}) can be derived from the product of M, the suspended respirable dust mass concentration (g/m{sup 3}), S, the concentration of contaminant in the soil (g/g), and E{sub f}, an enhancement factor. Typical measurement methods and values of M, and E{sub f} are given along with highlights of experiences with this method.

Shinn, J.H.

1998-04-01T23:59:59.000Z

35

Sandia Multispectral Airborne Lidar for UAV Deployment  

SciTech Connect (OSTI)

Sandia National Laboratories has initiated the development of an airborne system for W laser remote sensing measurements. System applications include the detection of effluents associated with the proliferation of weapons of mass destruction and the detection of biological weapon aerosols. This paper discusses the status of the conceptual design development and plans for both the airborne payload (pointing and tracking, laser transmitter, and telescope receiver) and the Altus unmanned aerospace vehicle platform. Hardware design constraints necessary to maintain system weight, power, and volume limitations of the flight platform are identified.

Daniels, J.W.; Hargis,Jr. P.J.; Henson, T.D.; Jordan, J.D.; Lang, A.R.; Schmitt, R.L.

1998-10-23T23:59:59.000Z

36

Buffer Repeaters April 20, 1998 1 Buffer Repeaters  

E-Print Network [OSTI]

not be immediately under the best wire route. Thus, longer wires are required to reach the gas stations. To deal input capacitance and higher output drive. This reduces the number of gas stations and extra routing are required. For floorplanning reasons, repeaters tend to be grouped into "gas sta- tions" which may

Harris, David Money

37

E-Print Network 3.0 - airborne sunphotometer airborne Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

CALNEX AND CARES Chris... (LaRC) airborne high spectral resolution lidar (HSRL) on the NASA B-200 aircraft measured aerosol... distribution of aerosols and to provide the vertical...

38

Methods for Sampling of Airborne Viruses  

Science Journals Connector (OSTI)

...has no effect on the recovery of T3 (131). Prehumidification...has no effect on the recovery of mengovirus 37A...but increases the recovery of bacteriophage S13...increased at high RH by the condensation of the water vapor on the airborne...

Daniel Verreault; Sylvain Moineau; Caroline Duchaine

2008-09-01T23:59:59.000Z

39

Measurement-based quantum repeaters  

E-Print Network [OSTI]

We introduce measurement-based quantum repeaters, where small-scale measurement-based quantum processors are used to perform entanglement purification and entanglement swapping in a long-range quantum communication protocol. In the scheme, pre-prepared entangled states stored at intermediate repeater stations are coupled with incoming photons by simple Bell-measurements, without the need of performing additional quantum gates or measurements. We show how to construct the required resource states, and how to minimize their size. We analyze the performance of the scheme under noise and imperfections, with focus on small-scale implementations involving entangled states of few qubits. We find measurement-based purification protocols with significantly improved noise thresholds. Furthermore we show that already resource states of small size suffice to significantly increase the maximal communication distance. We also discuss possible advantages of our scheme for different set-ups.

Zwerger, M; Briegel, H J

2012-01-01T23:59:59.000Z

40

Results of an Airborne Vertical Magnetic Gradient Demonstration, New Mexico  

Science Journals Connector (OSTI)

...portion of a study area. Excavation of UXO anomalies requires the services of an Explosive Ordnance Disposal (EOD) technician. EOD technicians are trained to scan the specified area with a magnetometer or similar instrument to pinpoint the location...

William E. Doll; Jacob R. Sheehan; T. Jeffrey Gamey; Les P. Beard; Jeannemarie Norton

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

ccpi-airborne_r2 | netl.doe.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Industrial Carbon Capture and Storage Clean Coal Power Initiative Power Plant Improvement Initiative Clean Coal Technology Demonstration Program FutureGen AIRBORNE PROCESS(tm)...

42

E-Print Network 3.0 - airborne biomass sensing Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

biomass sensing Search Powered by Explorit Topic List Advanced Search Sample search results for: airborne biomass sensing Page: << < 1 2 3 4 5 > >> 1 We analysed airborne laser...

43

E-Print Network 3.0 - airborne mixtures part Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

GLAS Airborne lidar Biomass Height The use of lidar remote sensing for mapping the spatial distribution... and spatially coincident discrete-return airborne lidar data over...

44

E-Print Network 3.0 - airborne acidity estimates Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Intercomparisons of airborne measurements of aerosol ionic chemical composition during TRACE-P and ACE-Asia Summary: .: AIRBORNE AEROSOL INTERCOMPARISON 9 of 13 D15S06...

45

E-Print Network 3.0 - airborne sun photometer Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

sun photometer Search Powered by Explorit Topic List Advanced Search Sample search results for: airborne sun photometer Page: << < 1 2 3 4 5 > >> 1 BNL -63020 AN AIRBORNE...

46

Webinar-Transcript-Repeat.pdf | Department of Energy  

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

Webinar-Transcript-Repeat.pdf Webinar-Transcript-Repeat.pdf Webinar-Transcript-Repeat.pdf More Documents & Publications Title Title Slide 1...

47

Methane emissions from Alaska in 2012 from CARVE airborne observations  

Science Journals Connector (OSTI)

...models reported releases in the range of 120...regional-scale airborne measurements...greenhouse gas mole fractions every ?2.5...measured mole fraction, pressure, temperature...from biomass fires and any ocean...High-accuracy continuous airborne measurements...measurements of dry mole fractions of carbon dioxide...

Rachel Y.-W. Chang; Charles E. Miller; Steven J. Dinardo; Anna Karion; Colm Sweeney; Bruce C. Daube; John M. Henderson; Marikate E. Mountain; Janusz Eluszkiewicz; John B. Miller; Lori M. P. Bruhwiler; Steven C. Wofsy

2014-01-01T23:59:59.000Z

48

Airborne Studies of the Smoke from the Kuwait Oil Fires  

Science Journals Connector (OSTI)

...smoke from the Kuwait fires produced a small-scale...Concluding Remarks The airborne studies of the smoke from the Kuwait fires provided a large...1. Uncontrolled releases of oil began in January...and the oil field fires began in late February...Zimmerman). 3. An airborne study of the smoke...

Peter V. Hobbs; Lawrence F. Radke

1992-05-15T23:59:59.000Z

49

Adaptive Restoration of Airborne Daedalus AADS1268 ATM Thermal Data  

SciTech Connect (OSTI)

To incorporate the georegistration and restoration processes into airborne data processing in support of U.S. Department of Energy's nuclear emergency response task, we developed an adaptive restoration filter for airborne Daedalus AADS1268 ATM thermal data based on the Wiener filtering theory. Preliminary assessment shows that this filter enhances the detectability of small weak thermal anomalies in AADS1268 thermal images.

D. Yuan; E. Doak; P. Guss; A. Will

2002-01-01T23:59:59.000Z

50

Robust Multi-loop Airborne SLAM in Unknown Wind Environments  

E-Print Network [OSTI]

Robust Multi-loop Airborne SLAM in Unknown Wind Environments Jonghyuk Kim Department of Engineering for Autonomous Systems University of Sydney, Australia Email: salah@acfr.usyd.edu.au Abstract-- This paper presents a robust multi-loop airborne SLAM structure which also augments wind information. The air velocity

Kim, Jonghyuk "Jon"

51

Model for the transport of airborne radioiodine  

SciTech Connect (OSTI)

Gaseous iodine deposits on surfaces exposed to the vapors. The industry has observed gaseous iodine transport behavior for years, and groups have proposed models describing the phenomena with limited success. The transport models attempt to describe the complicated chemical processes in terms of empirical rate constants. The current model, also empirical, treats deposition, conversion, and resuspension along a path of short segments where the assumption of instantaneous and homogeneous mixing is adequate, passing on the results as input to the next segment. The number of segments depends on line and flow parameters and can be as many as 100,000 for a long, large-diameter pipe with low flow. It includes a chemical bonding reaction rate to iodine deposited on the surface. The model has five compartments in each segment: concentrations of the three airborne iodine species, surface activity available for resuspension, and reacted surface iodine that is fixed on the surface. All iodine in the segment undergoes radioactive decay. The calculation divides the time period into small time division, typically 100, where the assumption of instantaneous equilibrium is applicable. The model initially developed by Science Applications International describes deposition, resuspension, and conversion of iodine in four differential equations that describe, respectively, airborne elemental, HOI and organic, and surface activities.

Cline, J.E.

1991-11-01T23:59:59.000Z

52

Analysis and Flight Test Validation of High Performance AirborneWind Turbines  

Science Journals Connector (OSTI)

Makani Power has developed an autonomous airborne wind turbine prototype incorporating a rigid wing with onboard...

Damon Vander Lind

2013-01-01T23:59:59.000Z

53

All Repeats Are Not Equal: A Module-Based Approach to Guide Repeat Protein Design  

E-Print Network [OSTI]

All Repeats Are Not Equal: A Module-Based Approach to Guide Repeat Protein Design Nicholas Sawyer1,2 , Jieming Chen1,3 and Lynne Regan1,2,3,4 1 - Integrated Graduate Program in Physical and Engineering protein­protein interactions. Past efforts to design repeat protein-based molecular recognition tools have

Regan, Lynne

54

Quantitative room-temperature mineralization of airborne formaldehyde using  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Quantitative room-temperature mineralization of airborne formaldehyde using Quantitative room-temperature mineralization of airborne formaldehyde using manganese oxide catalysts Title Quantitative room-temperature mineralization of airborne formaldehyde using manganese oxide catalysts Publication Type Journal Article Year of Publication 2011 Authors Sidheswaran, Meera A., Hugo Destaillats, Douglas P. Sullivan, Joern Larsen, and William J. Fisk Journal Applied Catalysis B - Environmental Issue 107 Pagination 34-41 Date Published 2011 Keywords commercial building ventilation & indoor environmental quality group, commercial building ventilation and indoor environmental quality group, energy analysis and environmental impacts department, indoor environment department, indoor environment group DOI 10.1016/j.apcatb.2011.06.032 Attachment Size

55

Airborne chemical baseline evaluation of the 222-S laboratory complex  

SciTech Connect (OSTI)

The 222-S Laboratory complex stores and uses over 400 chemicals. Many of these chemicals are used in laboratory analysis and some are used for maintenance activities. The majority of laboratory analysis chemicals are only used inside of fume hoods or glove boxes to control both chemical and radionuclide airborne concentrations. This evaluation was designed to determine the potential for laboratory analysis chemicals at the 222-S Laboratory complex to cause elevated airborne chemical concentrations under normal conditions. This was done to identify conditions and activities that should be subject to airborne chemical monitoring in accordance with the Westinghouse Hanford Company Chemical Hygiene Plan.

Bartley, P., Fluor Daniel Hanford

1997-02-12T23:59:59.000Z

56

Airborne Process Commercial Scale Demonstration Program  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

CCPI 2) CCPI 2) contacts Brad tomer Director Office of Major Demonstrations National Energy Technology Laboratory 3610 Collins Ferry Road P.O. Box 880 Morgantown, WV 26507-0880 304-285-4692 brad.tomer@netl.doe.gov PaRtIcIPant Mustang Clean Energy, LLC, a subsidiary of Peabody Energy St. Louis, MO. Airborne Process(tm) commerciAl scAle DemonstrAtion ProgrAm (withDrAwn Prior to AwArD) Project Description Mustang Clean Energy will design, construct, and operate a full scale sodium-based multi-pollutant scrubber in conjunction with a revenue-generating fertilizer by-product processing plant at Mustang Energy Company, LLC's Mustang Generating Station. Both Mustang Clean Energy and Mustang Energy Company are subsidiaries of Peabody Energy, the world's largest coal company. The 300 MW (net) station will

57

The Western Airborne Contaminant Assessment Project (WACAP): An Interdisciplinary Evaluation of the Impacts of Airborne Contaminants in Western U.S. National Parks  

Science Journals Connector (OSTI)

The Western Airborne Contaminant Assessment Project (WACAP): An Interdisciplinary Evaluation of the Impacts of Airborne Contaminants in Western U.S. National Parks ... U.S. Geological Survey, Denver, Colorado ...

Dixon H. Landers; Staci Massey Simonich; Daniel Jaffe; Linda Geiser; Donald H. Campbell; Adam Schwindt; Carl Schreck; Michael Kent; Will Hafner; Howard E. Taylor; Kimberly Hageman; Sascha Usenko; Luke Ackerman; Jill Schrlau; Neil Rose; Tamara Blett; Marilyn Morrison Erway

2010-01-05T23:59:59.000Z

58

The Source of Airborne Lead: Recycling Pb-Contaminated Soils  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Source of Airborne Lead: Recycling The Source of Airborne Lead: Recycling Pb-Contaminated Soils Starting in the 1970s, federal regulatory control and eventual elimination of lead-based "anti-knock" additives in gasoline decreased the level of airborne Pb in the USA by two orders-of-magnitude [1]. Blood lead levels of the USA figure 1 Figure 1. The good, the bad, and the ugly. Ambient airborne particulate matter captured on filters of woven silica fiber (large strips) and TeflonTM (round). Clean fiber filter at bottom for comparison. Take a deep breath? population decreased correspondingly [2,3]. Despite this dramatic improvement in both exposure risk and body burden of Pb, the sources and health threat of the low levels of lead in our "unleaded" air remain topics

59

Simulator Evaluation of Airborne Information for Lateral Spacing (AILS) Concept  

Science Journals Connector (OSTI)

The Airborne Information for Lateral Spacing (AILS) concept is designed to support independent parallel approach operations to runways spaced as close as 2500 ft. This report describes the AILS operational concept and the results of a ground-based flight ...

Abbott Terence S.; Elliott Dawn M.

2001-03-01T23:59:59.000Z

60

National High Magnetic Field Laboratory: Museum of Electricity...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

which is why it can be used repeatedly after it has been initially charged via friction. Related Electricity & Magnetism Pages Pioneers: Alessandro Volta Timeline: 1750 1774...

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Airborne asbestos fiber evaluation: a comparison of three methods  

E-Print Network [OSTI]

Najor Subject: Industrial Hygiene AIRBORNE ASBESTOS FIBER EVALUATION-A COMPARISON OF THRFE METHODS A Thesis by EMIL STUDI NKA Approved as to style and content by: ichard B. onzen air ar, of Committee) llaymon L. Johnston (Member) hlilliam P.... Fife (Member) N. . Ellis (Department Head) December 1979 ABSTRACT Airborne Asbestos Fiber Evaluat1on - A Compar1son Of Three Methods. ( December 1979) Emil Studinka, Jr. , S. S. , Clemson University M. S. , Texas A&M University Cha1rman of Ad...

Studinka, Emil

2012-06-07T23:59:59.000Z

62

Crustal structure of Guadeloupe Islands and the Lesser Antilles Arc from a new gravity and magnetic synthesis  

E-Print Network [OSTI]

the compilation and processing of available, on-land, airborne and marine, gravity and magnetic data acquired is associated with formations consistent with the low measured density and the underlying hydrothermal system

Paris-Sud XI, Université de

63

Automated genotyping of dinucleotide repeat markers  

SciTech Connect (OSTI)

The dinucleotide repeats (i.e., microsatellites) such as CA-repeats are a highly polymorphic, highly abundant class of PCR-amplifiable markers that have greatly streamlined genetic mapping experimentation. It is expected that over 30,000 such markers (including tri- and tetranucleotide repeats) will be characterized for routine use in the next few years. Since only size determination, and not sequencing, is required to determine alleles, in principle, dinucleotide repeat genotyping is easily performed on electrophoretic gels, and can be automated using DNA sequencers. Unfortunately, PCR stuttering with these markers generates not one band for each allele, but a pattern of bands. Since closely spaced alleles must be disambiguated by human scoring, this poses a key obstacle to full automation. We have developed methods that overcome this obstacle. Our model is that the observed data is generated by arithmetic superposition (i.e., convolution) of multiple allele patterns. By quantitatively measuring the size of each component band, and exploiting the unique stutter pattern associated with each marker, closely spaced alleles can be deconvolved; this unambiguously reconstructs the {open_quotes}true{close_quotes} allele bands, with stutter artifact removed. We used this approach in a system for automated diagnosis of (X-linked) Duchenne muscular dystrophy; four multiplexed CA-repeats within the dystrophin gene were assayed on a DNA sequencer. Our method accurately detected small variations in gel migration that shifted the allele size estimate. In 167 nonmutated alleles, 89% (149/167) showed no size variation, 9% (15/167) showed 1 bp variation, and 2% (3/167) showed 2 bp variation. We are currently developing a library of dinucleotide repeat patterns; together with our deconvolution methods, this library will enable fully automated genotyping of dinucleotide repeats from sizing data.

Perlin, M.W.; Hoffman, E.P. [Carnegie Mellon Univ., Pittsburgh, PA (United States)]|[Univ. of Pittsburgh, PA (United States)

1994-09-01T23:59:59.000Z

64

Assessment of Health Hazards of Repeated Inhalation of Diesel...  

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

Health Hazards of Repeated Inhalation of Diesel Emissions, with Comparisons to Other Source Emissions Assessment of Health Hazards of Repeated Inhalation of Diesel Emissions, with...

65

BioSAR Airborne Biomass Sensing System  

SciTech Connect (OSTI)

This CRADA was developed to enable ORNL to assist American Electronics, Inc. test a new technology--BioSAR. BioSAR is a an airborne, low frequency (80-120 MHz {approx} FM radio frequencies) synthetic aperture radar (SAR) technology which was designed and built for NASA by ZAI-Amelex under Patrick Johnson's direction. At these frequencies, leaves and small branches are nearly transparent and the majority of the energy reflected from the forest and returned to the radar is from the tree trunks. By measuring the magnitude of the back scatter, the volume of the tree trunk and therefore the biomass of the trunks can be inferred. The instrument was successfully tested on tropical rain forests in Panama. Patrick Johnson, with American Electronics, Inc received a Phase II SBIR grant from DOE Office of Climate Change to further test and refine the instrument. Mr Johnson sought ORNL expertise in measuring forest biomass in order for him to further validate his instrument. ORNL provided ground truth measurements of forest biomass at three locations--the Oak Ridge Reservation, Weyerhaeuser Co. commercial pine plantations in North Carolina, and American Energy and Power (AEP) Co. hardwood forests in southern Ohio, and facilitated flights over these forests. After Mr. Johnson processed the signal data from BioSAR instrument, the processed data were given to ORNL and we attempted to derive empirical relationships between the radar signals and the ground truth forest biomass measurements using standard statistical techniques. We were unsuccessful in deriving such relationships. Shortly before the CRADA ended, Mr Johnson discovered that FM signal from local radio station broadcasts had interfered with the back scatter measurements such that the bulk of the signal received by the BioSAR instrument was not backscatter from the radar but rather was local radio station signals.

Graham, R.L.; Johnson, P.

2007-05-24T23:59:59.000Z

66

E-Print Network 3.0 - airborne aura laser Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

laser Search Powered by Explorit Topic List Advanced Search Sample search results for: airborne aura laser Page: << < 1 2 3 4 5 > >> 1 We analysed airborne laser altimetry acquired...

67

E-Print Network 3.0 - airborne experimental test-bed Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

experimental test-bed Search Powered by Explorit Topic List Advanced Search Sample search results for: airborne experimental test-bed Page: << < 1 2 3 4 5 > >> 1 National Airborne...

68

ARM - Evaluation Product - Airborne Visible/Infrared Imaging Spectrometer  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ProductsAirborne Visible/Infrared Imaging ProductsAirborne Visible/Infrared Imaging Spectrometer (AVIRIS) Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) 1997.08.01 - 1997.08.01 Site(s) SGP General Description AVIRIS is an optical sensor that delivers calibrated images of the upwelling spectral radiance in 224 contiguous spectral channels (bands) with wavelengths from 400 to 2500 nanometers. AVIRIS has been flown on two aircraft platforms: a NASA ER-2 jet and the Twin Otter turboprop. The main objective of the AVIRIS project is to identify, measure, and monitor constituents of the Earth's surface and atmosphere based on molecular absorption and particle scattering signatures. Research with

69

Airborne Electromagnetic Survey At Raft River Geothermal Area (1979) | Open  

Open Energy Info (EERE)

Electromagnetic Survey At Raft River Electromagnetic Survey At Raft River Geothermal Area (1979) Exploration Activity Details Location Raft River Geothermal Area Exploration Technique Airborne Electromagnetic Survey Activity Date 1979 Usefulness not indicated DOE-funding Unknown Exploration Basis To show that AEM methods can be useful in exploration for and defining geothermal systems Notes Extensive audio-magnetotelluric (AMT) work by the USGS in KGRA's showed that many geothermal systems do have a near-surface electrical signature which should be detectable by an AEM system. References Christopherson, K.R.; Long, C.L.; Hoover, D.B. (1 September 1980) Airborne electromagnetic surveys as a reconnaissance technique for geothermal exploration Retrieved from "http://en.openei.org/w/index.php?title=Airborne_Electromagnetic_Survey_At_Raft_River_Geothermal_Area_(1979)&oldid=510231

70

A real-time airborne scatterometer data processor  

E-Print Network [OSTI]

Subject: Electrical Fngineering A REAL-TIME AIRBORNE SCATTEROMETER DATA PROCESSOR A Thesis by Gary James Reisor Approved as to style and content by: arrman o Committee Hea o Depa tment em er Mem er August 1976 ABSTRACT A Real-time Airborne... data stream in an industry standard format so that external devices for testing and data storage can be easily interfaced to the RASP system. Bi-phase Level Output (Big-L output) - Provides a high speed, synchronous, bit serial data output port...

Reisor, Gary James

2012-06-07T23:59:59.000Z

71

Inferring Ancestral Chloroplast Genomes with Inverted Repeat  

E-Print Network [OSTI]

Inferring Ancestral Chloroplast Genomes with Inverted Repeat Liying Cui # , Feng Yue + , Claude W 87131 Abstract--- Genome evolution is shaped not only by nucleotide substitutions, but also by structural changes including gene and genome duplications, inser­ tions/deletions and gene order

Tang, Jijun

72

STOCHASTIC SCHEDULING WITH PREEMPTIVE-REPEAT MACHINE  

E-Print Network [OSTI]

at the point where it was interrupted once the machine becomes operable again+ In the preemptive-repeat model processing will have to restart after the machine resumes its operation+ A significant number of results have is in a metal refinery in which the raw material is to be purified by melting it in a very high temperature

Sun, Xiaoqian

73

Methods to determine the size distribution of airborne rhinovirus  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Methods to determine the size distribution of airborne rhinovirus Methods to determine the size distribution of airborne rhinovirus Title Methods to determine the size distribution of airborne rhinovirus Publication Type Report Year of Publication 2004 Authors Russell, Marion L., Regine Goth-Goldstein, Michael G. Apte, and William J. Fisk Publisher Lawrence Berkeley National Laboratory Abstract About 50% of viral-induced respiratory illnesses are caused by the human rhinovirus (HRV). Prior research has demonstrated that rhinovirus infections can be transmitted via person-to-person contact and via inhalation of infectious aerosols. Measurements of the concentrations and sizes of bioaerosols are critical for research on building characteristics, aerosol transport, and mitigation measures. To detect airborne HRV, we developed a quantitative reverse transcription-coupled polymerase chain reaction (RT-PCR) assay and verified that this assay detects HRV in nasal lavage samples. A quantitation standard was used to determine the assay detection limit of 5 fg of HRV RNA with a linear range over 10,000-fold. This assay was used to quantify the size distribution of an artificially-produced HRV aerosol captured with an Andersen six-stage cascade impactor. In future studies, we hope to use the methods developed here to characterize the size distribution of naturally occurring viral-aerosols

74

Method for measuring the size distribution of airborne rhinovirus  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Method for measuring the size distribution of airborne rhinovirus Method for measuring the size distribution of airborne rhinovirus Title Method for measuring the size distribution of airborne rhinovirus Publication Type Conference Proceedings Year of Publication 2002 Authors Russell, Marion L., Regine Goth-Goldstein, Michael G. Apte, and William J. Fisk Conference Name Proceedings of the Indoor Air 2002 Conference, Monterey, CA Volume 1 Pagination 40-45 Publisher Indoor Air 2002, Santa Cruz, CA Abstract About 50% of viral-induced respiratory illnesses are caused by the human rhinovirus (HRV). Measurements of the concentrations and sizes of bioaerosols are critical for research on building characteristics, aerosol transport, and mitigation measures. We developed a quantitative reverse transcription-coupled polymerase chain reaction (RT-PCR) assay for HRV and verified that this assay detects HRV in nasal lavage samples. A quantitation standard was used to determine a detection limit of 5 fg of HRV RNA with a linear range over 1000-fold. To measure the size distribution of HRV aerosols, volunteers with a head cold spent two hours in a ventilated research chamber. Airborne particles from the chamber were collected using an Andersen Six-Stage Cascade Impactor. Each stage of the impactor was analyzed by quantitative RT-PCR for HRV. For the first two volunteers with confirmed HRV infection, but with mild symptoms, we were unable to detect HRV on any stage of the impactor

75

The study of cirrus clouds using airborne and satellite data  

E-Print Network [OSTI]

Cirrus clouds are known to play a key role in the earth's radiation budget, yet are one of the most uncertain components of the earth-atmosphere system. With the development of instruments such as the Airborne Visible/Infrared Imaging Spectrometer...

Meyer, Kerry Glynne

2004-09-30T23:59:59.000Z

76

Using Airborne Sensing to Map Pools in Rivers  

E-Print Network [OSTI]

Department of Water, Land and Biodiversity Conservation, South Australia #12;#12;Mapping methods · SpaceborneUsing Airborne Sensing to Map Pools in Rivers Michael Stewardson, Jeffrey Walker, Michelle Kan, Luke Kitchen, Stephen Wealands, Payam Ghadirian eWater Cooperative Research Centre, The University

Walker, Jeff

77

Distillation by repeated measurements: Continuous spectrum case  

SciTech Connect (OSTI)

Repeated measurements on one part of a bipartite system strongly affect the other part that is not measured, the dynamics of which is regulated by an effective contracted evolution operator. When the spectrum of this operator is discrete, the nonmeasured system is driven into a pure state, irrespective of the initial state, provided that the spectrum satisfies certain conditions. We show here that, even in the case of continuous spectrum, an effective distillation can occur under rather general conditions. We confirm it by applying our formalism to a simple model.

Bellomo, Bruno; Compagno, Giuseppe [CNISM and Dipartimento di Scienze Fisiche ed Astronomiche, Universita di Palermo, via Archirafi 36, IT-90123 Palermo (Italy); Nakazato, Hiromichi [Department of Physics, Waseda University, Tokyo 169-8555 (Japan); Yuasa, Kazuya [Waseda Institute for Advanced Study, Waseda University, Tokyo 169-8050 (Japan)

2010-12-15T23:59:59.000Z

78

Role of Leucine-Rich Repeat Proteins in the Development  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . . 718 LEUCINE-RICH REPEAT PROTEINS AND DISORDERS OF THE NERVOUS SYSTEM . . . 719 Slitrks in Tourette Leucine-Rich Repeat Proteins in Nervous System Disorders . . . . 720 CONCRole of Leucine-Rich Repeat Proteins in the Development and Function of Neural Circuits Joris de

Luo, Liqun

79

Airborne electromagnetic surveys as a reconnaissance technique for  

Open Energy Info (EERE)

electromagnetic surveys as a reconnaissance technique for electromagnetic surveys as a reconnaissance technique for geothermal exploration Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Proceedings: Airborne electromagnetic surveys as a reconnaissance technique for geothermal exploration Details Activities (1) Areas (1) Regions (0) Abstract: INPUT airborne electromagnetic (AEM) surveys were conducted during 1979 in five Known Geothermal Resource Areas (KGRA's). AEM work has not been significantly utilized in the past for geothermal purposes because it was thought that a shallow exploration technique would not be effective. Extensive audio-magnetotelluric (AMT) work by the USGS in KGRA's showed that many geothermal systems do have a near-surface electrical signature which should be detectable by an AEM system. INPUT responses in the form of

80

Quantifying forested stands with the pulsed airborne laser profiler  

E-Print Network [OSTI]

) red H. Smeins (Member) Peter T Sprinz (Member) J ~ (Head aries Lee f Departmen ) May 1986 ABSTRACT Quantifying Forested Stands with the Pulsed Airborne Laser Profiler. (May 1986) Michael Craig Whatley, B. S. , Texas A&M University... Digital Data CONCLUSIONS. 48 51 PALP Capabilities and Opportunities in Basal Area Estimation. 53 REFERENCES' APPENDIX A APPENDIX B. VITA. 54 57 78 90 viii LIST OF TASLES Table Page Prediction equations of predicted ground tree height from...

Whatley, Michael Craig

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

E-Print Network 3.0 - airborne laser swath Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: airborne laser swath Page: << < 1 2 3 4 5 > >> 1 Natural Environment Research Council May 26, 2010...

82

E-Print Network 3.0 - airborne laser system Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: airborne laser system Page: << < 1 2 3 4 5 > >> 1 Z .ISPRS Journal of Photogrammetry & Remote Sensing...

83

E-Print Network 3.0 - airborne laser scanner Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: airborne laser scanner Page: << < 1 2 3 4 5 > >> 1 International Conference on Machine Control &...

84

NASA multipurpose airborne DIAL system and measurements of ozone and aerosol profiles  

Science Journals Connector (OSTI)

An airborne differential absorption lidar (DIAL) system has been developed for the remote measurement of gas and aerosol profiles in the troposphere and lower stratosphere. The...

Browell, E V; Carter, A F; Shipley, S T; Allen, R J; Butler, C F; Mayo, M N; Siviter, J H; Hall, W M

1983-01-01T23:59:59.000Z

85

E-Print Network 3.0 - airborne gamma-ray surveying Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma-ray surveying Page: << < 1 2 3 4 5 > >> 1 Geophysical Research Abstracts Vol. 12,...

86

E-Print Network 3.0 - airborne gamma-ray spectrometry Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma-ray spectrometry Page: << < 1 2 3 4 5 > >> 1 Geophysical Research Abstracts Vol. 12,...

87

E-Print Network 3.0 - airborne gamma spectrometry Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

blimps (or other airborne agents) carrying instruments and sensors... Mystery of Gamma-Ray Bursts An international team of astronomers has found good support for the idea... that...

88

E-Print Network 3.0 - airborne gamma-ray measurements Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma-ray measurements Page: << < 1 2 3 4 5 > >> 1 Geophysical Research Abstracts Vol. 12,...

89

E-Print Network 3.0 - airborne gamma survey Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

blimps (or other airborne agents) carrying instruments and sensors... Mystery of Gamma-Ray Bursts An international team of astronomers has found good support for the idea... that...

90

E-Print Network 3.0 - airborne intelligence surveillance Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

surveillance problems. Figure 15.1: Data flow diagram of our modeling approach. Airborne modeling steps... , Berkeley, 1 Based on "Constructing 3D City Models by Merging...

91

E-Print Network 3.0 - airborne carbon 14c Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Bern Collection: Environmental Sciences and Ecology ; Geosciences 65 Biomass and Bioenergy 31 (2007) 646655 Estimating biomass of individual pine trees using airborne...

92

E-Print Network 3.0 - airborne effluent control Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Science 7 Effluent Monitoring 4-1 4. Effluent Monitoring Summary: has a comprehensive air pollution control and monitoring program to ensure that airborne discharges... control...

93

E-Print Network 3.0 - airborne particulates european Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

de mathmatiques Collection: Mathematics 12 Statistical Issues in the Study of Air Pollution Involving Airborne Particulate Matter Summary: Statistical Issues in the Study of...

94

E-Print Network 3.0 - air-borne power ultrasonic Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

search results for: air-borne power ultrasonic Page: << < 1 2 3 4 5 > >> 1 Center for Industrial Sensors and Measurements Department Materials Science & Engineering Summary:...

95

E-Print Network 3.0 - airborne astronomy missions Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

test and validate space exploration concepts safely fly-out the Space Shuttle... operations, conduct airborne remote sensing and science observations, and revolutionize...

96

E-Print Network 3.0 - airborne science program Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

science program Search Powered by Explorit Topic List Advanced Search Sample search results for: airborne science program Page: << < 1 2 3 4 5 > >> 1 Natural Environment Research...

97

E-Print Network 3.0 - airborne moisture-indicating microorganisms...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

surface. In order to investigate the microorganisms present... obtained on the Marine Agar plates indicating a possible marine source for some of these airborne Source: Rainey,...

98

E-Print Network 3.0 - airborne bacterial spores Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

immune recognition of airborne fungal spores, Nature, 460, 1117-1121, 2009... -236, 1966. Gilbert, G. S. and Reynolds, D. R.: Nocturnal fungi: ... Source: Martin, Scot T.- School...

99

E-Print Network 3.0 - airborne fine particulate Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

particulate matter otherwise known as aerosols. However health risks from these pollutants... Airborne Pollution In urban environments What are the real health effects of...

100

An Airborne Spectrometer and Retrieval Development Project for Air Quality Measurements  

Science Journals Connector (OSTI)

The NASA-funded GeoTASO Instrument Incubator project will develop an airborne spectrometer, participate in field campaigns, and test trace gas and aerosol retrieval performance in...

Leitch, James; Valle, Tim; Hardesty, Chuck; Delker, Tom; Baker, Brian; Eskin, Joshua; Chance, Kelly; Liu, Xiong; Janz, Scott; Pickering, Ken; Wang, Jun

Note: This page contains sample records for the topic "repeated airborne magnetic" 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.


101

E-Print Network 3.0 - airborne trace element Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Search Sample search results for: airborne trace element Page: << < 1 2 3 4 5 > >> 1 AIR-DEPOSITED POLLUTION IN THE ANACOSTIA RIVER WATERSHED Summary: pollution in Lake...

102

Remote Detection of Heated Ethanol Plumes by Airborne Passive Fourier Transform Infrared Spectrometry  

Science Journals Connector (OSTI)

Methodology is developed for the automated detection of heated plumes of ethanol vapor with airborne passive Fourier transform infrared spectrometry. Positioned in a fixed-wing...

Tarumi, Toshiyasu; Small, Gary W; Combs, Roger J; Kroutil, Robert T

2003-01-01T23:59:59.000Z

103

residual magnetism  

Science Journals Connector (OSTI)

The magnetization, i.e., the magnetic polarization, that remains in a magnetized material after all attempts to remove the magnetization have been made. Note: An example of residual magnetization is the magnetiza...

2001-01-01T23:59:59.000Z

104

Airborne measurements of carbonaceous aerosols in southern Africa during  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Airborne measurements of carbonaceous aerosols in southern Africa during Airborne measurements of carbonaceous aerosols in southern Africa during the dry, biomass burning season Title Airborne measurements of carbonaceous aerosols in southern Africa during the dry, biomass burning season Publication Type Journal Article LBNL Report Number LBNL-50880 Year of Publication 2003 Authors Kirchstetter, Thomas W., Tihomir Novakov, and Peter V. Hobbs Journal Journal of Geophysical Research - Atmospheres Keywords black carbon, evolved gas analysis, light absorption, organic carbon, positive sampling artifact, SAFARI Abstract Particulate matter collected aboard the University of Washington's Convair-580 research aircraft over southern Africa during the dry, biomass burning season was analyzed for total carbon, organic carbon, and black carbon contents using thermal and optical methods. Samples were collected in smoke plumes of burning savanna and in regional haze. A known artifact, produced by the adsorption of organic gases on the quartz filter substrates used to collect the particulate matter samples, comprised a significant portion of the total carbon collected. Consequently, conclusions derived from the data are greatly dependent on whether or not organic carbon concentrations are corrected for this artifact. For example, the estimated aerosol co-albedo (1 - single scattering albedo), which is a measure of aerosol absorption, of the biomass smoke samples is 60% larger using corrected organic carbon concentrations. Thus, the corrected data imply that the biomass smoke is 60% more absorbing than do the uncorrected data. The black carbon to (corrected) organic carbon mass ratio (BC/OC) of smoke plume samples (0.18±0.06) is lower than that of samples collected in the regional haze (0.25±0.08). The difference may be due to mixing of biomass smoke with background air characterized by a higher BC/OC ratio. A simple source apportionment indicates that biomass smoke contributes about three-quarters of the aerosol burden in the regional haze, while other sources (e.g., fossil fuel burning) contribute the remainder.

105

Source Apportionment of Airborne Particulate Matter using Inorganic and  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Source Apportionment of Airborne Particulate Matter using Inorganic and Source Apportionment of Airborne Particulate Matter using Inorganic and Organic Species as Tracers Title Source Apportionment of Airborne Particulate Matter using Inorganic and Organic Species as Tracers Publication Type Journal Article Year of Publication 2012 Authors Wang, Yungang, Philip K. Hopke, X. Xia, Oliver V. Rattigan, David C. Chalupa, and M. J. Source Journal Atmospheric Environment Volume 55 Start Page 525 Pagination 525-532 Date Published 01/2012 Keywords source apportionment positive matrix factorization (pmf) particulate matter (pm) molecular markers (mm) aethalometer delta-c Abstract Source apportionment is typically performed on chemical composition data derived from particulate matter (PM) samples. However, many common sources no longer emit significant amounts of characteristic trace elements requiring the use of more comprehensive chemical characterization in order to fully resolve the PM sources. Positive matrix factorization (EPA PMF, version 4.1) was used to analyze 24-hr integrated molecular marker (MM), secondary inorganic ions, trace elements, carbonaceous species and light absorption data to investigate sources of PM2.5 in Rochester, New York between October 2009 and October 2010 to explore the role of specific MMs. An eight-factor solutionwas found for which the factors were identified as isoprene secondary organic aerosol (SOA), airborne soil, other SOA, diesel emissions, secondary sulfate, wood combustion, gasoline vehicle, and secondary nitrate contributing 6.9%, 12.8%, 3.7%, 7.8%, 45.5%, 9.1%, 7.9%, and 6.3% to the average PM2.5 concentration, respectively Concentrations of pentacosane, hexacosane, heptacosane, and octacosane in the gasoline vehicles factor were larger compared to diesel emissions. Aethalometer Delta-C was strongly associated with wood combustion. The compounds, n-heptacosanoic acid and n-octacosanoic acid, occasionally used in the past as tracers for road dust, were found to largely associate with SOA in this study. In comparison with a standard PMF analyses without MM, inclusion of themwas necessary to resolve SOA and wood combustion factors in urban areas.

106

Modular airborne remote sampling and sensing system (MARSSS)  

SciTech Connect (OSTI)

Sandia is developing a modular airborne instrumentation system for the Environmental Protection Agency. This system will allow flexibility in the choice of instruments by standardizing mountings, power supplies and sampling modes. The objective is to make it possible to perform aerial surveys from chartered aircraft that have not been adapted in a more than superficial manner. It will also allow the experimenter to tailor his choice of instruments to the specific problem. Since the equipment will have a stand-alone capability, it can be applied to other problems such as long-term unattended use at remote locations or in toxic or otherwise hazardous environments.

Woods, R.O.

1982-04-01T23:59:59.000Z

107

Prospecting by sampling and analysis of airborne particulates and gases  

DOE Patents [OSTI]

A method is claimed for prospecting by sampling airborne particulates or gases at a ground position and recording wind direction values at the time of sampling. The samples are subsequently analyzed to determine the concentrations of a desired material or the ratios of the desired material to other identifiable materials in the collected samples. By comparing the measured concentrations or ratios to expected background data in the vicinity sampled, one can select recorded wind directions indicative of the upwind position of the land-based source of the desired material.

Sehmel, G.A.

1984-05-01T23:59:59.000Z

108

Impact of airborne Doppler wind lidar profiles on numerical simulations of a tropical cyclone  

E-Print Network [OSTI]

Click Here for Full Article Impact of airborne Doppler wind lidar profiles on numerical simulations Regional Campaign (TPARC) field experiment in 2008, an airborne Doppler wind lidar (DWL) was onboard the U measurements on the numerical simulation of Typhoon Nuri (2008) in its formation phase. With an advanced

Pu, Zhaoxia

109

Fast and Extensible Building Modeling from Airborne Qian-Yi Zhou  

E-Print Network [OSTI]

Fast and Extensible Building Modeling from Airborne LiDAR Data Qian-Yi Zhou University of Southern@graphics.usc.edu ABSTRACT This paper presents an automatic algorithm which recon- structs building models from airborne Li LiDAR(light detection and ranging), building modeling, seg- mentation, building footprints 1

Southern California, University of

110

Using Cell Phones to Detect Harmful Airborne Engineering lab named after company that hopes to commercialize  

E-Print Network [OSTI]

Using Cell Phones to Detect Harmful Airborne Substances Engineering lab named after company focused on using mobile devices, such as cell phones, to detect harmful airborne substances in real detection capabilities with mobile devices, including cell phones that can interface global positioning

111

Biomass and Bioenergy 31 (2007) 646655 Estimating biomass of individual pine trees using airborne lidar  

E-Print Network [OSTI]

Biomass and Bioenergy 31 (2007) 646­655 Estimating biomass of individual pine trees using airborne biomass and bio-energy feedstocks. The overall goal of this study was to develop a method for assessing aboveground biomass and component biomass for individual trees using airborne lidar data in forest settings

112

Estimating the Evaporative Cooling Bias of an Airborne Reverse Flow Thermometer YONGGANG WANG AND BART GEERTS  

E-Print Network [OSTI]

Estimating the Evaporative Cooling Bias of an Airborne Reverse Flow Thermometer YONGGANG WANG form 24 June 2008) ABSTRACT Airborne reverse flow immersion thermometers were designed to prevent in cloud is surmised because air decelerates into the thermometer housing, and thus is heated and becomes

Geerts, Bart

113

Airborne Electromagnetic Survey At Chena Area (Erkan, Et. Al., 2008) | Open  

Open Energy Info (EERE)

Airborne Electromagnetic Survey At Chena Area (Erkan, Et. Al., 2008) Airborne Electromagnetic Survey At Chena Area (Erkan, Et. Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Airborne Electromagnetic Survey At Chena Area (Erkan, Et. Al., 2008) Exploration Activity Details Location Chena Geothermal Area Exploration Technique Airborne Electromagnetic Survey Activity Date 2008 Usefulness not indicated DOE-funding Unknown Notes The airborne resistivity (Fig. 2; panel c) shows high values in most of the areas including the Chena pluton, with the exception of the very northern and southern portion of the map where the Paleozoic metamorphic unit is located. Lineations of low resistivity at the west end of the area are generally associated with the location of the valley fill. However, some

114

A Relaxation Strategy for the Optimization of Airborne Wind Energy Sebastien Gros, M. Zanon and Moritz Diehl  

E-Print Network [OSTI]

A Relaxation Strategy for the Optimization of Airborne Wind Energy Systems S´ebastien Gros, M. Zanon and Moritz Diehl Abstract-- Optimal control is recognized by the Airborne Wind Energy (AWE problem. Keywords : airborne wind energy, optimal control, non- convex optimization, flight control I

115

Unmanned airborne vehicle (UAV): Flight testing and evaluation of two-channel E-field very low frequency (VLF) instrument  

SciTech Connect (OSTI)

Using VLF frequencies, transmitted by the Navy`s network, for airborne remote sensing of the earth`s electrical, magnetic characteristics was first considered by the United States Geological Survey (USGS) around the mid 1970s. The first VLF system was designed and developed by the USGS for installation and operation on a single engine, fixed wing aircraft used by the Branch of Geophysics for geophysical surveying. The system consisted of five channels. Two E-field channels with sensors consisting of a fixed vertical loaded dipole antenna with pre-amp mounted on top of the fuselage and a gyro stabilized horizontal loaded dipole antenna with pre-amp mounted on a tail boom. The three channel magnetic sensor consisted of three orthogonal coils mounted on the same gyro stabilized platform as the horizontal E-field antenna. The main features of the VLF receiver were: narrow band-width frequency selection using crystal filters, phase shifters for zeroing out system phase variances, phase-lock loops for generating real and quadrature gates, and synchronous detectors for generating real and quadrature outputs. In the mid 1990s the Branch of Geophysics designed and developed a two-channel E-field ground portable VLF system. The system was built using state-of-the-art circuit components and new concepts in circuit architecture. Small size, light weight, low power, durability, and reliability were key considerations in the design of the instrument. The primary purpose of the instrument was for collecting VLF data during ground surveys over small grid areas. Later the system was modified for installation on a Unmanned Airborne Vehicle (UAV). A series of three field trips were made to Easton, Maryland for testing and evaluating the system performance.

NONE

1998-12-01T23:59:59.000Z

116

Helicopter magnetic survey conducted to locate wells  

SciTech Connect (OSTI)

A helicopter magnetic survey was conducted in August 2007 over 15.6 sq mi at the Naval Petroleum Reserve No. 3’s (NPR-3) Teapot Dome Field near Casper, Wyoming. The survey’s purpose was to accurately locate wells drilled there during more than 90 years of continuous oilfield operation. The survey was conducted at low altitude and with closely spaced flight lines to improve the detection of wells with weak magnetic response and to increase the resolution of closely spaced wells. The survey was in preparation for a planned CO2 flood for EOR, which requires a complete well inventory with accurate locations for all existing wells. The magnetic survey was intended to locate wells missing from the well database and to provide accurate locations for all wells. The ability of the helicopter magnetic survey to accurately locate wells was accomplished by comparing airborne well picks with well locations from an intense ground search of a small test area.

Veloski, G.A.; Hammack, R.W.; Stamp, V. (Rocky Mountain Oilfield Testing Center); Hall, R. (Rocky Mountain Oilfield Testing Center); Colina, K. (Rocky Mountain Oilfield Testing Center)

2008-07-01T23:59:59.000Z

117

Coding Tandem Repeats Generate Diversity in Aspergillus fumigatus Genes  

Science Journals Connector (OSTI)

...Genes containing multiple coding mini- and microsatellite repeats...growth was observed under a grid-mounted Olympus CK inverted...conidia were counted under a grid-mounted Olympus CK inverted...Genes containing multiple coding mini- and microsatellite repeats...

Emma Levdansky; Jacob Romano; Yona Shadkchan; Haim Sharon; Kevin J. Verstrepen; Gerald R. Fink; Nir Osherov

2007-06-08T23:59:59.000Z

118

Repeat Space Theory Applied to Carbon Nanotubes and  

E-Print Network [OSTI]

1 Repeat Space Theory Applied to Carbon Nanotubes and Matrix Art Shigeru Arimoto* , Massoud Amini with the series of papers entitled "Repeat space theory applied to carbon nanotubes and related molecular networks formulated and discussed. The Matrix Art pictures of carbon nanotube energy band curves played a significant

Taylor, Keith F.

119

New Approaches to Differential Mobility Analysis for Airborne Measurements  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

to Differential Mobility to Differential Mobility Analysis for Airborne Measurements Rick Flagan Chemical Engineering and Environmental Science and Engineering California Institute of Technology Pasadena, CA 91125 Support: NSF, ONR, Davidow Foundation Differential Mobility Analysis Air Sample Aerosol Charger/Neutralizer (Atmospheric Pressure Chemical Ionization) Sheath Air Q sh ~ 10 Q a Volumetric flow rate Q s Exhaust Q ex =Q sh Differential Mobility Analyzer DMA (Aerodynamic Analog of Sector Mass Spectrometer) E F e =eE F drag = 6πµR p V C slip (λ /R p ) CPC Q a =Q s Steady or Scanned Voltage Migration Velocity * Mobility * Peclet number for migration v E = Z p E Z p = n p e k B T D Pe mig = electrophoretic migration diffusive transport = bv E D = bn p eE k B T Singly Charged Particles  Radial DMA  Cylindrical DMA E = V b Pe = eV k B T E =

120

Application Of Airborne Thermal Infrared Imagery To Geothermal Exploration  

Open Energy Info (EERE)

Thermal Infrared Imagery To Geothermal Exploration Thermal Infrared Imagery To Geothermal Exploration Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Application Of Airborne Thermal Infrared Imagery To Geothermal Exploration Details Activities (0) Areas (0) Regions (0) Abstract: Burlington Northern (BN) conducted TIR surveys using a fixed wing aircraft over 17 different geothermal prospects in Washington, Montana and Wyoming because of this remote sensing tool's ability to detect variations in the heat emitted from the earth's surface. The surveys were flown at an average elevation of 5000 ft. above the ground surface which gave a spatial resolution of approximately 7 feet diameter. BN found thermal activity which had not been recognized previously in some prospects (e.g., Lester,

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Final report. Electro-Seise, Inc., Airborne Survey  

SciTech Connect (OSTI)

The Rocky Mountain Oilfield Testing Center (RMOTC) has recently completed a test of an airborne microgravity and electric field sensing technology developed by Electro-Seise, Inc. of Fort Worth, Texas. The test involved the use of a single engine airplane to gather data over the Teapot Dome oil field along a tight grid spacing and along thirty (30) survey lines. The resultant gravity structure maps, based on the field data, were found to overlay the known structure of Teapot Dome. In addition, fault maps, based on the field data, were consistent with the known fault strike at Teapot Dome. Projected hydrocarbon thickness maps corresponded to some of the known production histories at RMOTC. Exceptions to the hydrocarbon thickness maps were also found to be true.

Schulte, Ralph

2001-06-01T23:59:59.000Z

122

Test re-test repeatability of the strain index  

E-Print Network [OSTI]

such as peak force and duration of job cycle. Test-retest repeatability was measured using Pearson's R, Spearman's rho, and tetrachoric correlation according to the nature of the variable. Spearman's rho values for individual and team task variable ratings...

Stephens, John-Paul

2004-09-30T23:59:59.000Z

123

E-Print Network 3.0 - airborne profiling laser Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

profiling laser Search Powered by Explorit Topic List Advanced Search Sample search results for: airborne profiling laser Page: << < 1 2 3 4 5 > >> 1 This special issue ofThis...

124

E-Print Network 3.0 - airborne laser mapping Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: airborne laser mapping Page: << < 1 2 3 4 5 > >> 1 This special issue ofThis special issue of...

125

The Airborne Cloud–Aerosol Transport System: Overview and Description of the Instrument and Retrieval Algorithms  

Science Journals Connector (OSTI)

The Airborne Cloud–Aerosol Transport System (ACATS) is a Doppler wind lidar system that has recently been developed for atmospheric science capabilities at the NASA Goddard Space Flight Center (GSFC). ACATS is also a high-spectral-resolution lidar ...

John E. Yorks; Matthew J. McGill; V. Stanley Scott; Shane W. Wake; Andrew Kupchock; Dennis L. Hlavka; William D. Hart; Patrick A. Selmer

2014-11-01T23:59:59.000Z

126

Design of a small fast steering mirror for airborne and aerospace applications  

E-Print Network [OSTI]

This thesis presents the analysis and design of a small advanced fast steering mirror (sAFSM) for airborne and aerospace platforms. The sAFSM provides feedback-controlled articulation of two rotational axes for precision ...

Boulet, Michael Thomas

2008-01-01T23:59:59.000Z

127

E-Print Network 3.0 - airborne particulate samples Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

<< < 1 2 3 4 5 > >> 1 Correlating Bioaerosol Load with PM2.5 and PM10 Concentrations Jordan Peccia1, Ann M. Dillner1,2, Justin Boreson1 Summary: an airborne sample. Figure 3:...

128

E-Print Network 3.0 - airborne particles pm10 Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

<< < 1 2 3 4 5 > >> 1 Correlating Bioaerosol Load with PM2.5 and PM10 Concentrations Jordan Peccia1, Ann M. Dillner1,2, Justin Boreson1 Summary: exposure of airborne biological...

129

E-Print Network 3.0 - airborne fungi particulate Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

<< < 1 2 3 4 5 > >> 1 Correlating Bioaerosol Load with PM2.5 and PM10 Concentrations Jordan Peccia1, Ann M. Dillner1,2, Justin Boreson1 Summary: of airborne particulate matter....

130

E-Print Network 3.0 - airborne particulates Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

<< < 1 2 3 4 5 > >> 1 Correlating Bioaerosol Load with PM2.5 and PM10 Concentrations Jordan Peccia1, Ann M. Dillner1,2, Justin Boreson1 Summary: of airborne particulate matter....

131

E-Print Network 3.0 - airborne particulate matter Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

<< < 1 2 3 4 5 > >> 1 Correlating Bioaerosol Load with PM2.5 and PM10 Concentrations Jordan Peccia1, Ann M. Dillner1,2, Justin Boreson1 Summary: of airborne particulate matter....

132

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

133

E-Print Network 3.0 - airborne gamma-ray spectra Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma-ray spectra Page: << < 1 2 3 4 5 > >> 1 Ivan De Mitri VHE Gamma Ray Astronomy 1 Very High...

134

E-Print Network 3.0 - airborne gamma ray Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma ray Page: << < 1 2 3 4 5 > >> 1 Evaluating the Impact of Advanced Memory Systems on...

135

E-Print Network 3.0 - airborne gamma-ray spectrometer Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Powered by Explorit Topic List Advanced Search Sample search results for: airborne gamma-ray spectrometer Page: << < 1 2 3 4 5 > >> 1 GAMMA RAYS FROM MAJOR ELEMENTS BY THERMAL...

136

Modeling Plot-Level Biomass and Volume Using Airborne and Terrestrial Lidar Measurements  

E-Print Network [OSTI]

The United States Forest Service (USFS) Forest Inventory and Analysis (FIA) program provides a diverse selection of data used to assess the status of the nation’s forested areas using sample locations dispersed throughout the country. Airborne...

Sheridan, Ryan D.

2012-07-16T23:59:59.000Z

137

Airborne release fractions/rates and respirable fractions for nonreactor nuclear facilities. Volume 2, Appendices  

SciTech Connect (OSTI)

This document contains compiled data from the DOE Handbook on Airborne Release Fractions/Rates and Respirable Fractions for Nonreactor Nuclear facilities. Source data and example facilities utilized, such as the Plutonium Recovery Facility, are included.

Not Available

1994-12-01T23:59:59.000Z

138

Airborne Toxic (“Big 5”) and GHG (CO2) Emissions: Italy 1991–1995  

Science Journals Connector (OSTI)

This paper presents a cursory examination of the possible evolution of airborne pollutants in Italy over the period 1991–1995. Also included are two brief digressions of more general scope on (i) cost-effectiv...

Peter L. Fano

1993-01-01T23:59:59.000Z

139

E-Print Network 3.0 - air-borne dust conditions Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

L., Guo, J., Dan, M., Zhang, W., Wang, Z., and Hao, Z.: The air-borne particulate pollution... Discussions Regional characteristics of spring Asian dust and its impact on...

140

E-Print Network 3.0 - airborne heavy metals Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

61 Subpart H: National Emission... - sions, and Table 4-1 presents the airborne release data from each of these facilities during 2003... County Article 12, which regulates storage...

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Airborne CO2 DIAL measurement of atmospheric tracer gas concentration distributions  

Science Journals Connector (OSTI)

An airborne differential absorption lidar system employing high-energy line-tunable CO2 lasers has been used to map cross-plume vertical distributions resulting from a...

Uthe, Edward E

1986-01-01T23:59:59.000Z

142

Airborne Particulate Matter in HVAC Systems and its Influence on Indoor Air Quality  

E-Print Network [OSTI]

This paper first reviews the mechanisms governing movement of PMs in HVAC systems. Then, the basic equations governing PM deposition in ducts are introduced and investigations on airborne PMs distribution in HVAC systems are reviewed. The influence...

Fu, Z.; Li, N.; Wang, H.

2006-01-01T23:59:59.000Z

143

E-Print Network 3.0 - airborne particle generated Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

is being developed for airborne... consider the issue of convective heat transfer to the ice and water particles moving with the air flow... particles larger than 100 m are...

144

E-Print Network 3.0 - airborne particles generated Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

is being developed for airborne... consider the issue of convective heat transfer to the ice and water particles moving with the air flow... particles larger than 100 m are...

145

E-Print Network 3.0 - accidental airborne releases Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

release in: 1987 12 kg TEQs 1995 3 kg TEQs 12;Human... Exposure to Dioxins Airborne dioxins bind to particles and deposit on plants, soil and in waterways Primary... ;Accidental...

146

Uncertainties Associated with Combining Airborne and Ground-Based Doppler Radar Data  

Science Journals Connector (OSTI)

Observations with airborne Doppler radar can expand the area of coverage and extend the time a moving weather system can remain under observation. Also, additional analysis methods are possible with the increase in independent estimates of the ...

Peter S. Ray; David P. Jorgensen

1988-04-01T23:59:59.000Z

147

AIRBORNE, OPTICAL REMOTE SENSNG OF METHANE AND ETHANE FOR NATURAL GAS PIPELINE LEAK DETECTION  

SciTech Connect (OSTI)

Ophir Corporation was awarded a contract by the U. S. Department of Energy, National Energy Technology Laboratory under the Project Title ''Airborne, Optical Remote Sensing of Methane and Ethane for Natural Gas Pipeline Leak Detection'' on October 14, 2002. The scope of the work involved designing and developing an airborne, optical remote sensor capable of sensing methane and, if possible, ethane for the detection of natural gas pipeline leaks. Flight testing using a custom dual wavelength, high power fiber amplifier was initiated in February 2005. Ophir successfully demonstrated the airborne system, showing that it was capable of discerning small amounts of methane from a simulated pipeline leak. Leak rates as low as 150 standard cubic feet per hour (scf/h) were detected by the airborne sensor.

Jerry Myers

2005-04-15T23:59:59.000Z

148

A Portable Airborne Scanning Lidar System for Ocean and Coastal Applications  

Science Journals Connector (OSTI)

A portable compact airborne scanning lidar system based on the Riegl LMS-Q240i has been developed and its functionality demonstrated for oceanographic and coastal measurements. Differential GPS (DGPS) and an inertial navigation system are ...

Benjamin D. Reineman; Luc Lenain; David Castel; W. Kendall Melville

2009-12-01T23:59:59.000Z

149

Repeat Recipient Reporting in FederalReporting.gov  

Broader source: Energy.gov (indexed) [DOE]

Energy's (DOE) Webinar Transcript Energy's (DOE) Webinar Transcript Repeat Recipient Reporting in FederalReporting.gov Welcome to the Department of Energy's webinar for repeat reporters into FederalReporting.gov. Today we are just going to cover a brief overview of the timeline, give you some helpful hints, reiterate when your reporting is complete, and talk to your briefly about some new features in FederalReporting.gov.

150

Magnetic Field Measurements and Analysis For an Aladdin Dipole Magnet  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Field Measurements and Analysis Field Measurements and Analysis For an Aladdin Dipole Magnet by Kenneth M. Thompson Electromagnetic Technology Program Argonne National Laboratory Argonne, 1L 60439 L8-40 November 21, 1985 Table of Contents Summary i A. Introduction *..*.**.***.....****...**.*..*...*..***.......*..... 1 1. Magnet Description 2. Measuring System 3. Data Descriptions 1 1 3 B. Equipment **********************.***.******.*************..******* 5 1. Probe Positioning System a. Description b. Calibration 2. Field Probe a. Calibration b. Probe Center 1. Method 2. Repeatability c. Hall Gaussmeter Parameters 3. Auxiliary Probes 4. Optical Alignment Equipment 5. Power Supply 6. Magnet Cooling Water System 7. Support a. Magnet b. Manipulator 5 5 7 7 8 9 9 9 10 10 13 13

151

Magnetic Spinner  

Science Journals Connector (OSTI)

A science toy sometimes called the “magnetic spinner” is an interesting class demonstration to illustrate the principles of magnetic levitation. It can also be used to demonstrate Faraday's law and a horizontally suspended physical pendulum. The levitated part contains two circular magnets encased in a plastic housing. Each magnet stays above two triangular magnets fixed to the base. The magnetic repulsive force experienced by the circular magnets is independent of their orientation; therefore the holder of these magnets can be rotated without affecting its stability. The holder with the circular magnets can be oscillated up and down as a horizontally suspended physical pendulum.

P. J. Ouseph

2006-01-01T23:59:59.000Z

152

Magnetism Digest  

Science Journals Connector (OSTI)

... and Institute of Electrical and Electronic Engineers, on the occasion of their annual conferences on magnetism and magnetic materials in the United States, have sponsored the production of a Magnetic ... references, drawn from a large number of sources, to work in the field of magnetism and magnetic materials published in the preceding year. They therefore provide a very convenient ...

J. H. PHILLIPS

1966-06-25T23:59:59.000Z

153

Airborne sound propagation over sea during offshore wind farm piling  

Science Journals Connector (OSTI)

Offshore piling for wind farm construction has attracted a lot of attention in recent years due to the extremely high noise emission levels associated with such operations. While underwater noise levels were shown to be harmful for the marine biology the propagation of airborne piling noise over sea has not been studied in detail before. In this study detailed numerical calculations have been performed with the Green's Function Parabolic Equation (GFPE) method to estimate noise levels up to a distance of 10?km. Measured noise emission levels during piling of pinpiles for a jacket-foundation wind turbine were assessed and used together with combinations of the sea surface state and idealized vertical sound speed profiles (downwind sound propagation). Effective impedances were found and used to represent non-flat sea surfaces at low-wind sea states 2 3 and 4. Calculations show that scattering by a rough sea surface which decreases sound pressure levels exceeds refractive effects which increase sound pressure levels under downwind conditions. This suggests that the presence of wind even when blowing downwind to potential receivers is beneficial to increase the attenuation of piling sound over the sea. A fully flat sea surface therefore represents a worst-case scenario.

2014-01-01T23:59:59.000Z

154

Dynamic mechanism of micromachined electrostatic airborne ultrasonic transducers  

Science Journals Connector (OSTI)

Micromachining technology allows electrostatic (or capacitive) airborne ultrasonic transducers to be made with highly reproducible characteristics thus providing the possibility to model their behaviors reliably. The behavior of a transducer depends on its geometric structure and the materials to be used. Its mechanical stiffness results from the compressibility of air in cavities the bending stiffness of the diaphragm and the plane tension applied to the diaphragm if any. It is clarified that there are two main types of dynamic mechanisms according to different structures. In one type in which the air in cavities is enclosed the diaphragm can be treated as a thin plate supported by an air spring or a plate founded on an air cushion thus adopting the plate?on?air–spring model or short?tube model such as those transducers with V?grooved U?grooved or pit?array?texture backplates [L.?F. Ge Chin. Sci. Bull. Acad. Sin. 10 (1997)]. In a second type air is not enclosed so that the effect of air spring can be omitted thereby taking the membrane?under?tension model such as conventional condenser microphones and ultrasonic transducers with acoustic holes. Resonant frequencies of a transducer can be determined by the vanishing of the reactance of its inversive impedance [L.?F. Ge J. Acoust. Soc. Am. 96 3318 (1994)]. [Work supported by the 211 Engineering Foundation of Anhui University.

Li?Feng Ge

1997-01-01T23:59:59.000Z

155

Rank Transforms and Tests of Interaction for Repeated Measures Experiments with Various Covariance Structures.  

E-Print Network [OSTI]

??The covariance structure of a repeated measures design can be simple or very complicated. In analyzing repeated measures, rank transformations can be an alternative to… (more)

Bryan, Jennifer Joanne

2009-01-01T23:59:59.000Z

156

E-Print Network 3.0 - ankyrin-repeat membrane protein Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

10 Stabilizing IB by "Consensus" Design Diego U. Ferreiro1,3 Summary: Keywords: protein folding; ankyrin repeat protein; NF-B; transcription factor; repeat protein...

157

EMAG2: A 2arc min resolution Earth Magnetic Anomaly Grid compiled from satellite, airborne, and marine magnetic  

E-Print Network [OSTI]

Zealand N. Bournas Geotech Ltd., Aurora, Ontario L4G 4C4, Canada J. Brozena Marine Physics Branch, Naval Geological Survey of Canada, 615 Booth Street, Ottawa, Ontario K1A 0E9, Canada J. D. Fairhead GETECH, Kitson House, Elmete Hall, Elmete Lane, Leeds LS8 2LJ, UK School of Earth and Environment, University of Leeds

Müller, Dietmar

158

Magnetism.1  

Science Journals Connector (OSTI)

... each complete magnets with a pair of poles. The general character of the earth's magnetism has long been known—that the earth behaves with regard to magnets as though it ... and that these poles have a slow secular motion. For many years the earth's magnetism has been the subject of careful study by the most powerful minds. Gauss organized ...

1890-01-16T23:59:59.000Z

159

An integrative approach for codon repeats evolutionary analyses  

Science Journals Connector (OSTI)

The relationship between genome characteristics and several human diseases has been a central research goal in genomics. Many studies have shown that specific gene patterns, such as amino acid repetitions, are associated with human diseases. However, several open questions still remain, such as, how these tandem repeats appeared in the evolutionary path or how they have evolved in orthologous genes of related organisms. In this paper, we present a computational solution that facilitates comparative studies of orthologous genes from various organisms. The application uses various web services to gather gene sequence information, local algorithms for tandem repeats identification and similarity measures for gene clustering.

José Paulo Lousado; José Luis Oliveira; Gabriela Moura; Manuel A.S. Santos

2012-01-01T23:59:59.000Z

160

Earth’s magnetism  

Science Journals Connector (OSTI)

Earth’s magnetism, geomagnetism, terrestrial magnetism [The magnetism of the Earth] ? Erdmagnetismus m, Geomagnetismus

2014-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Emissions of airborne toxics from coal-fired boilers: Mercury  

SciTech Connect (OSTI)

Concerns over emissions of hazardous air Pollutants (air toxics) have emerged as a major environmental issue, and the authority of the US Environmental Protection Agency to regulate such pollutants was greatly expanded through the Clean Air Act Amendments of 1990. Mercury has been singled out for particular attention because of concerns over possible effects of emissions on human health. This report evaluates available published information on the mercury content of coals mined in the United States, on mercury emitted in coal combustion, and on the efficacy of various environmental control technologies for controlling airborne emissions. Anthracite and bituminous coals have the highest mean-mercury concentrations, with subbituminous coals having the lowest. However, all coal types show very significant variations in mercury concentrations. Mercury emissions from coal combustion are not well-characterized, particularly with regard to determination of specific mercury compounds. Variations in emission rates of more than an order of magnitude have been reported for some boiler types. Data on the capture of mercury by environmental control technologies are available primarily for systems with electrostatic precipitators, where removals of approximately 20% to over 50% have been reported. Reported removals for wet flue-gas-desulfurization systems range between 35 and 95%, while spray-dryer/fabric-filter systems have given removals of 75 to 99% on municipal incinerators. In all cases, better data are needed before any definitive judgments can be made. This report briefly reviews several areas of research that may lead to improvements in mercury control for existing flue-gas-clean-up technologies and summarizes the status of techniques for measuring mercury emissions from combustion sources.

Huang, H.S.; Livengood, C.D.; Zaromb, S.

1991-09-01T23:59:59.000Z

162

Consequence of total lepton number violation in strongly magnetized iron white dwarfs  

E-Print Network [OSTI]

The influence of neutrinoless electron to positron conversion on cooling of strongly magnetized iron white dwarfs is studied. It is shown that they can be good candidates for soft gamma-ray repeaters and anomalous X-ray pulsars.

V. B. Belyaev; P. Ricci; F. Simkovic; J. Adam, Jr.; M. Tater; E. Truhlik

2014-06-04T23:59:59.000Z

163

Mapping the Energy Landscape of Repeat Proteins using NMR-detected Hydrogen Exchange  

E-Print Network [OSTI]

Mapping the Energy Landscape of Repeat Proteins using NMR-detected Hydrogen Exchange Aitziber L; tetratricopep- tide repeat (TPR); 1D-Ising model; partially unfolded form Introduction Repeat proteins present be described by simpler models8,9 and the energy landscape10,11 and the folding pathways12 of repeat proteins

Regan, Lynne

164

GT Repeats Are Associated with Recombination on Human Chromosome 22  

E-Print Network [OSTI]

1998). In humans, the extensive sequencing efforts, accelerated recently by the Genome SequencingGT Repeats Are Associated with Recombination on Human Chromosome 22 Jacek Majewski1 and Jurg Ott by recombination hot spots and cold spots, observed in all organisms ranging from bacteria to humans

Majewski, Jacek

165

Ground-Based and Airborne (PMS 2-D Probe Canister-Mounted) 183 GHz Water  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Ground-Based and Airborne (PMS 2-D Probe Canister-Mounted) 183 GHz Water Ground-Based and Airborne (PMS 2-D Probe Canister-Mounted) 183 GHz Water Vapor Radiometer Pazmany, Andrew ProSensing Inc. Category: Instruments ProSensing Inc. has developed a G-band (183 GHz, 1.5 mm wavelength) water vapor radiometer (GVR) for the measurement of low concentrations of atmospheric water vapor and liquid water. The instrument's precipitable water vapor measurement precision is approximately 0.01 mm in dry (<2 mm vapor column) conditions. The ground-based version of the instrument was first deployed at ProSensing's facility in Amherst, MA in February 2005, then at the North Slope of Alaska DOE ARM site in Barrow AK in April 2005, where it has been continuously operating since. An airborne version, designed to operate from a standard PMS 2-D probe canister, is now being

166

Monitoring Surface Hydrologic Processes by Using Airborne Multispectral and  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Monitoring Surface Hydrologic Processes Monitoring Surface Hydrologic Processes EVS is developing a reliable, cost-effective, repeatable method for long-term, utility-scale environmental monitoring in arid environments. Environmental monitoring is one of the primary means to ensure that impacts associated with renewable energy development are minimized. One critical aspect of water resources monitoring is the study of surface hydrologic processes - flow conveyance, sediment transport, and groundwater recharge - associated with intermittent and ephemeral streams. Surface hydrology plays an important role in local ecosystems and water availability for human use, which is particularly critical for arid environments. Knowledge about ephemeral streams is the key to understanding the hydrologic cycle and how it influences the abundance and distribution

167

Size Distributions of Airborne Radionuclides from the Fukushima Nuclear Accident at Several Places in Europe  

Science Journals Connector (OSTI)

Size Distributions of Airborne Radionuclides from the Fukushima Nuclear Accident at Several Places in Europe ... (8) After about 10 days following the beginning of the releases, contaminated air masses reached Europe and yielded to an unusual airborne concentration for 2–3 weeks,(8) even if this was of no concern for public health thanks to atmospheric dispersion and deposition along the route from Japan. ... (35) In our opinion this “gas-to-particle conversion” results mainly from the adsorption of gas on particles. ...

Olivier Masson; Wolfgang Ringer; Helena Malá; Petr Rulik; Magdalena Dlugosz-Lisiecka; Konstantinos Eleftheriadis; Olivier Meisenberg; Anne De Vismes-Ott; François Gensdarmes

2013-09-03T23:59:59.000Z

168

Modern Magnetism  

Science Journals Connector (OSTI)

... BATES‘S "Modern Magnetism", first published in 1939, is widely appreciated as a general survey in which ... grateful to the author for collecting together so much interesting information about recent work in magnetism. ...

E. C. S.

1948-06-05T23:59:59.000Z

169

Migratory magnetism  

Science Journals Connector (OSTI)

... in tune with the Earth's magnetic field. But how, exactly, do creatures sense magnetism? This is one of the most intriguing questions in modern biology - and also ... move preferentially in a north-south direction. This finding hints at the possible influence of magnetism on their movements. ...

Henry Gee

1999-10-06T23:59:59.000Z

170

Hidden Rotational Symmetries in Magnetic Domain Patterns  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Hidden Rotational Symmetries in Magnetic Domain Patterns Print Hidden Rotational Symmetries in Magnetic Domain Patterns Print Magnetic thin films have complicated domain patterns that may or may not repeat with each cycle through a hysteresis loop. A magnetic thin film with perpendicular anisotropy, such as that used in computer hard drives, for example, commonly exhibits labyrinthine domain patterns. These patterns are disordered over a macroscopic length scale, and intuitively we do not expect to observe any symmetry in such systems. Scientists at the ALS, the University of Oregon, and the University of California, San Diego, have recently used coherent soft x-ray scattering with angular Fourier analysis to discover that the disordered domain patterns do, in fact, exhibit rotational symmetries, which can be as small as two-fold or as large as 30-fold. Their study of magnetic symmetries gives scientists a toolbox for discovering hidden symmetries in diverse material systems.

171

Hidden Rotational Symmetries in Magnetic Domain Patterns  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Hidden Rotational Symmetries in Hidden Rotational Symmetries in Magnetic Domain Patterns Hidden Rotational Symmetries in Magnetic Domain Patterns Print Wednesday, 27 June 2012 00:00 Magnetic thin films have complicated domain patterns that may or may not repeat with each cycle through a hysteresis loop. A magnetic thin film with perpendicular anisotropy, such as that used in computer hard drives, for example, commonly exhibits labyrinthine domain patterns. These patterns are disordered over a macroscopic length scale, and intuitively we do not expect to observe any symmetry in such systems. Scientists at the ALS, the University of Oregon, and the University of California, San Diego, have recently used coherent soft x-ray scattering with angular Fourier analysis to discover that the disordered domain patterns do, in fact, exhibit rotational symmetries, which can be as small as two-fold or as large as 30-fold. Their study of magnetic symmetries gives scientists a toolbox for discovering hidden symmetries in diverse material systems.

172

Independent commentators repeatedly cited Solyndra as an innovative and  

Broader source: Energy.gov (indexed) [DOE]

commentators repeatedly cited Solyndra as an innovative and commentators repeatedly cited Solyndra as an innovative and promising company: San Jose Mercury News: "Fremont's Solyndra goes from stealth to solar star" October 6, 2008 Richard Branson, the billionaire entrepreneur and adventurer, thinks Solyndra has a good idea. Branson's Virgin Green Fund got pitches from 117 solar companies but invested in only one, Solyndra, said Anup Jacob, a partner in the fund's San Francisco office. "They have the potential to become the next great energy company," he said. San Francisco Chronicle: "A bright idea for solar power; Fremont startup's innovative format saves time and space" October 7, 2008 University and government researchers have tinkered with solar cylinders before, said Daniel

173

Memory Imperfections in Atomic Ensemble-based Quantum Repeaters  

E-Print Network [OSTI]

Quantum repeaters promise to deliver long-distance entanglement overcoming noise and loss in realistic quantum channels. A promising class of repeaters, based on atomic ensemble quantum memories and linear optics, follow the proposal by Duan et al [Nature 414, 413, 2001]. Here we analyse this protocol in terms of a very general model for the quantum memories employed. We derive analytical expressions for scaling of entanglement with memory imperfections, dark counts, loss and distance, and apply our results to two specific quantum memory protocols. Our methods apply to any quantum memory with an interaction Hamiltonian at most quadratic in the mode operators and are in principle extendible to more recent modifications of the original DLCZ proposal.

Jonatan Bohr Brask; Anders Sondberg Sorensen

2008-03-14T23:59:59.000Z

174

Magnetic Testing of Bonded Magnets  

Science Journals Connector (OSTI)

Many techniques exist to characterize the magnetic properties of bonded magnets. We will review the common and not so common techniques in use, with emphasis on the advantages and disadvantages of each one, an...

S. R. Trout

2003-01-01T23:59:59.000Z

175

ARM - Field Campaign - NASA Coordinated Airborne CO2 Lidar Flight Test  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

govCampaignsNASA Coordinated Airborne CO2 Lidar Flight Test Campaign govCampaignsNASA Coordinated Airborne CO2 Lidar Flight Test Campaign Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : NASA Coordinated Airborne CO2 Lidar Flight Test Campaign 2009.07.27 - 2009.08.07 Lead Scientist : Edward Browell For data sets, see below. Description This airborne field test campaign was designed to obtain a coordinated set of remote CO2 Laser Absorption Spectrometer (LAS) measurements using the NASA Langley/ITT 1.57-micron Continuous-Wave (CW) LAS operating from the NASA Langley UC-12 aircraft; the NASA Goddard 1.57-micron pulsed LAS operating from the NASA Glenn Lear-25 aircraft; and the NASA Jet Propulsion Laboratory 2.0-micron CW-coherent LAS operating from a contracted Twin Otter aircraft. These remote LAS CO2 column measurements were compared with

176

The Airborne Aero-Optics Laboratory, AAOL Eric J. Jumpera1  

E-Print Network [OSTI]

and around an aircraft has on a laser projected or received by an optical system. The background also the usefulness of airborne high-energy lasers [1]. The ALL used a carbon-dioxide, gas- dynamic laser; but, the laser's long wavelength (10.6 m) limited its range and intensity on target. From a diffraction

Gordeyev, Stanislav

177

KuROS: A New Airborne Ku-Band Doppler Radar for Observation of Surfaces  

Science Journals Connector (OSTI)

This study presents the new airborne Doppler radar Ku-Band Radar for Observation of Surfaces (KuROS), which provides measurements of the normalized radar cross section ?° and of the Doppler velocity over the sea. The system includes two antennas ...

Gérard Caudal; Danièle Hauser; René Valentin; Christophe Le Gac

2014-10-01T23:59:59.000Z

178

Airborne wear particles railway research group FEM Simulation of train disc brake behavior  

E-Print Network [OSTI]

1 Airborne wear particles railway research group FEM Simulation of train disc brake behavior a modern train disc brake with brake caliper and high speed pads. During braking, a considerable amount. A model of train brake caliper Aim The overall aim of the MSc degree project is to develop a thermoelastic

Haviland, David

179

DETECTION OF IMPULSE-LIKE AIRBORNE SOUND FOR DAMAGE IDENTIFICATION IN ROTOR BLADES OF WIND TURBINES  

E-Print Network [OSTI]

DETECTION OF IMPULSE-LIKE AIRBORNE SOUND FOR DAMAGE IDENTIFICATION IN ROTOR BLADES OF WIND TURBINES burdens of wind turbines. To detect damage of rotor blades, several research projects focus on an acoustic, rotor blade, wind turbine INTRODUCTION There are several publications of non destructive damage

Boyer, Edmond

180

Airborne release fraction -ARF- and respirable fraction -RF- for foot pack cans in fires  

SciTech Connect (OSTI)

The purpose of this analysis is to provide the airborne release fraction (ARF), respirable fraction (RF) and respirable release as a fraction of initial mass for Food Pack Cans (FPCs) containing plutonium powders (e.g., oxide) that become pressurized to the point of bursting in a fire.

CARSON, D.M.

2002-06-05T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Savannah River Site Ingestion Pathway Methodology Manual for Airborne Radioactive Releases  

SciTech Connect (OSTI)

This manual documents a recommended methodology for determining the ingestion pathway consequences of hypothetical accidental airborne radiological releases from facilities at the Savannah River Site. Both particulate and tritiated radioactive contaminants are addressed. Other approaches should be applied for evaluation of routine releases.

Vincent, A.W. III

2001-01-03T23:59:59.000Z

182

Airborne observations of methane emissions from rice cultivation in the Sacramento Valley of California  

E-Print Network [OSTI]

, the California Air Resources Board (CARB) greenhouse gas inventory emission rate of 2.7 Ã? 1010 g CH4/yr is not accounted for in the CARB inventory. Citation: Peischl, J., et al. (2012), Airborne observations of methane California, which include livestock, landfills, wastewater treatment, oil and gas drilling and distribution

Cohen, Ronald C.

183

Analysis and Design of a Novel Three-Level LLCC Inverter Supplying an Airborne Piezoelectric  

E-Print Network [OSTI]

Analysis and Design of a Novel Three-Level LLCC Inverter Supplying an Airborne Piezoelectric Brake on the investigation of a novel single-phase three-level PWM inverter in the kW power range, feeding a high power multi suit best to the needs of ultrasonic motors has been conducted. A resonant inverter with LLCC

Paderborn, Universität

184

Short-Term Temporal Variability in Airborne Bacterial and Fungal Populations  

Science Journals Connector (OSTI)

...Harvard University, Cambridge, Massachusetts 02142 Airborne microorganisms...conditions (e.g., wind speed, solar radiation, and humidity...at the Broad Institute of Massachusetts Institute of Technology and...hPa) 836 833 829 831 833 Solar irradiance (W m2) 394 628...

Noah Fierer; Zongzhi Liu; Mari Rodríguez-Hernández; Rob Knight; Matthew Henn; Mark T. Hernandez

2007-11-02T23:59:59.000Z

185

IONOSPHERIC THREATS TO THE INTEGRITY OF AIRBORNE GPS USERS A DISSERTATION  

E-Print Network [OSTI]

IONOSPHERIC THREATS TO THE INTEGRITY OF AIRBORNE GPS USERS A DISSERTATION SUBMITTED threats to user safety if left unmitigated. This work identifies when such disturbances may occur using indicates the need for a non-trivial threat model for the Federal Aviation Administration's Local Area

Stanford University

186

Resuspension of Soil as a Source of Airborne Lead near Industrial Facilities and Highways  

Science Journals Connector (OSTI)

Resuspension of Soil as a Source of Airborne Lead near Industrial Facilities and Highways ... To examine the potential significance of this mechanism, surface soil samples with a range of bulk soil Pb concentrations were obtained near five industrial facilities and along roadsides and were resuspended in a specially designed laboratory chamber. ...

Thomas M Young; Deo A. Heeraman; Gorkem Sirin; Lowell L. Ashbaugh

2002-05-04T23:59:59.000Z

187

Control of Airborne Wind Energy Systems Based on Nonlinear Model Predictive Control & Moving Horizon Estimation  

E-Print Network [OSTI]

tethered to the ground at a high velocity across the wind direction. Power can be generated by a, the first option is considered. Because it involves a much lighter structure, a major advantage of powerControl of Airborne Wind Energy Systems Based on Nonlinear Model Predictive Control & Moving

188

IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY 1 Airborne Wind Energy Based on Dual Airfoils  

E-Print Network [OSTI]

airfoil systems, but they are less advantageous at very large scales. Index Terms--Airborne wind energy Wind Energy (AWE) paradigm proposes to eliminate the structural elements not directly involved in power Wind Energy [17]. Crosswind flight extracts power from the airflow by flying an airfoil tethered

189

Estimation and Mapping of Hurricane Turbulent Energy Using Airborne Doppler Measurements  

Science Journals Connector (OSTI)

Hurricane turbulent kinetic energy (TKE) was computed using airborne Doppler measurements from the NOAA WP-3D tail radars, and TKE data were retrieved for a variety of storms at different stages of their life cycle. The geometry of the radar ...

Sylvie Lorsolo; Jun A. Zhang; Frank Marks Jr.; John Gamache

2010-09-01T23:59:59.000Z

190

Determination of Airborne Fission Product Radioactivity using Gamma-Ray Spectrometry  

Science Journals Connector (OSTI)

... portion thereof by means of an end-window Geiger-Miiller counter or other suitable detector. Radon and thoron along with their radioactive daughter products are universally present in surface air in ... determine airborne fission product radioactivity it is necessary to differentiate it from that arising from radon and thoron daughters. The concentration of ...

P. F. GUSTAFSON; S. S. BRAR; U. C. MISHRA

1962-08-11T23:59:59.000Z

191

Economic Sources and Spatial Distribution of Airborne Chromium Risks in the U.S.  

Science Journals Connector (OSTI)

Economic Sources and Spatial Distribution of Airborne Chromium Risks in the U.S. ... Electric power utilities emit Cr(VI) during combustion of chromium-containing fossil fuels, such as coal and oil (22). ... Modern technology, together with an advanced economy, can provide a good or service in myriad ways, giving us choices on what to produce and how to produce it. ...

Amanda P. Rehr; Mitchell J. Small; H. Scott Matthews; Chris T. Hendrickson

2010-02-19T23:59:59.000Z

192

EXTENSION OF AN AUTOMATIC BUILDING EXTRACTION TECHNIQUE TO AIRBORNE LASER SCANNER DATA CONTAINING DAMAGED BUILDINGS  

E-Print Network [OSTI]

EXTENSION OF AN AUTOMATIC BUILDING EXTRACTION TECHNIQUE TO AIRBORNE LASER SCANNER DATA CONTAINING DAMAGED BUILDINGS F. Tarsha-Kurdi a , M. Rehor b , T. Landes a , P. Grussenmeyer a , H.-P. Bähr b-peter.baehr)@ipf.uni-karlsruhe.de KEY WORDS: Laser scanning, LIDAR, Point Cloud, DSM, Segmentation, Extraction, Building, Disaster

Paris-Sud XI, Université de

193

75Th Anniversary - The Historical Development Of The Magnetic Method In  

Open Energy Info (EERE)

Th Anniversary - The Historical Development Of The Magnetic Method In Th Anniversary - The Historical Development Of The Magnetic Method In Exploration Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: 75Th Anniversary - The Historical Development Of The Magnetic Method In Exploration Details Activities (0) Areas (0) Regions (0) Abstract: The magnetic method, perhaps the oldest of geophysical exploration techniques, blossomed after the advent of airborne surveys in World War II. With improvements in instrumentation, navigation, and platform compensation, it is now possible to map the entire crustal section at a variety of scales, from strongly magnetic basement at regional scale to weakly magnetic sedimentary contacts at local scale. Methods of data filtering, display, and interpretation have also advanced, especially with

194

Design of planar-flexure-based contacts for high-repeatability kinematic couplings  

E-Print Network [OSTI]

This research assesses the effects of planar flexural elements on the repeatability of a high-precision kinematic coupling. Few devices exist that are capable of passive, repeatable nanoscale fixturing; this research ...

Segado, Martin Alan

2007-01-01T23:59:59.000Z

195

Magnetic shielding  

DOE Patents [OSTI]

A magnetically-conductive filler material bridges the gap between a multi-part magnetic shield structure which substantially encloses a predetermined volume so as to minimize the ingress or egress of magnetic fields with respect to that volume. The filler material includes a heavy concentration of single-magnetic-domain-sized particles of a magnetically conductive material (e.g. soft iron, carbon steel or the like) dispersed throughout a carrier material which is generally a non-magnetic material that is at least sometimes in a plastic or liquid state. The maximum cross-sectional particle dimension is substantially less than the nominal dimension of the gap to be filled. An epoxy base material (i.e. without any hardening additive) low volatility vacuum greases or the like may be used for the carrier material. The structure is preferably exposed to the expected ambient magnetic field while the carrier is in a plastic or liquid state so as to facilitate alignment of the single-magnetic-domain-sized particles with the expected magnetic field lines. 3 figs.

Kerns, J.A.; Stone, R.R.; Fabyan, J.

1987-10-06T23:59:59.000Z

196

Magnetic shielding  

DOE Patents [OSTI]

A magnetically-conductive filler material bridges the gap between a multi-part magnetic shield structure which substantially encloses a predetermined volume so as to minimize the ingress or egress of magnetic fields with respect to that volume. The filler material includes a heavy concentration of single-magnetic-domain-sized particles of a magnetically conductive material (e.g. soft iron, carbon steel or the like) dispersed throughout a carrier material which is generally a non-magnetic material that is at least sometimes in a plastic or liquid state. The maximum cross-sectional particle dimension is substantially less than the nominal dimension of the gap to be filled. An epoxy base material (i.e. without any hardening additive) low volatility vacuum greases or the like may be used for the carrier material. The structure is preferably exposed to the expected ambient magnetic field while the carrier is in a plastic or liquid state so as to facilitate alignment of the single-magnetic-domain-sized particles with the expected magnetic field lines.

Kerns, John A. (Livermore, CA); Stone, Roger R. (Walnut Creek, CA); Fabyan, Joseph (Livermore, CA)

1987-01-01T23:59:59.000Z

197

Strange Magnetism  

E-Print Network [OSTI]

We present an analytic and parameter-free expression for the momentum dependence of the strange magnetic form factor of the nucleon and its corresponding radius which has been derived in Heavy Baryon Chiral Perturbation Theory. We also discuss a model-independent relation between the isoscalar magnetic and the strange magnetic form factors of the nucleon based on chiral symmetry and SU(3) only. These limites are used to derive bounds on the strange magnetic moment of the proton from the recent measurement by the SAMPLE collaboration.

Thomas R. Hemmert; Ulf-G. Meissner; Sven Steininger

1998-11-09T23:59:59.000Z

198

Optical Magnetism  

Science Journals Connector (OSTI)

Magnetic dipole radiation one fourth as intense as electric dipole radiation, as well as a novel nonlinear magneto-optical effect are reported in dielectric media.

Oliveira, Samuel L; Rand, Stephen C

199

Magnetic Field Safety Magnetic Field Safety  

E-Print Network [OSTI]

Magnetic Field Safety Training #12;Magnetic Field Safety Strong Magnetic Fields exist around energized magnets. High magnetic fields alone are a recognized hazard only for personnel with certain medical conditions such as pacemakers, magnetic implants, or embedded shrapnel. In addition, high magnetic

McQuade, D. Tyler

200

Isolation and characterization of a highly repeated satellite DNA sequence from the cyprinid fish Notropis lutrensis  

E-Print Network [OSTI]

electrophoresis in an agarose gel. Evidence of a tandem arrangement of the satellite was demonstrated by the Formation oF "ladders" in partial restriction endonuclease digests. The basic monomeric repeat unit of the satellite was sequenced and Found... Horizontal Agarose Gel Electrophoresis Photography Results 10 10 ISOLATION AND RESTRICTION ENDONUCLEASE MAPPING OF THE MBOI REPEAT UNIT Materials and Methods 16 16 Isolation of the MboI Repeat Unit Purification of the MboI Repeat Unit DNA...

Moyer, Susan Pavlosky

1986-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Entanglement distillation by dissipation and continuous quantum repeaters  

E-Print Network [OSTI]

Even though entanglement is very vulnerable to interactions with the environment, it can be created by purely dissipative processes. Yet, the attainable degree of entanglement is profoundly limited in the presence of noise sources. We show that distillation can also be realized dissipatively, such that a highly entanglement steady state is obtained. The schemes put forward here display counterintuitive phenomena, such as improved performance if noise is added to the system. We also show how dissipative distillation can be employed in a continuous quantum repeater architecture, in which the resources scale polynomially with the distance.

Karl Gerd H. Vollbrecht; Christine A. Muschik; J. Ignacio Cirac

2010-11-18T23:59:59.000Z

202

Magnetic Field Safety Training  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Safety Training Magnetic Field Safety Strong Magnetic Fields exist around energized magnets. High magnetic fields alone are a recognized hazard only for personnel with certain...

203

Rough Set Dependency Analysis in Evaluation Studies An Application in the Study of Repeated Heart Attacks  

E-Print Network [OSTI]

of repeated heart attacks. 1 Introduction In many cases it is not possible to obtain complete ­ or certain analysis can be applied to an investi- gation into the causes of repeated heart attacks con- ductedRough Set Dependency Analysis in Evaluation Studies ­ An Application in the Study of Repeated Heart

Düntsch, Ivo

204

Inverted Repeat Structure of the Human Genome: The X-Chromosome Contains a Preponderance of  

E-Print Network [OSTI]

Inverted Repeat Structure of the Human Genome: The X-Chromosome Contains a Preponderance of Large, Highly Homologous Inverted Repeats That Contain Testes Genes Peter E. Warburton,1,4 Joti Giordano,1 Fanny performed the first genome-wide analysis of the Inverted Repeat (IR) structure in the human genome, using

Warburton, Peter E.

205

Biosynthesis of magnetic nanostructures in a foreign organism by transfer of bacterial  

E-Print Network [OSTI]

single magnetic domain nanoparticles at ambient temperature is challenging1,2 . In nature, magnetosomes. Here, we show that the ability to biomineralize highly ordered magnetic nanostructures can- settes comprising the MycoMar (tps) or Tn5 transposase gene, two corresponding inverted repeats

Cai, Long

206

Nanoscale Imaging of Airborne Particles Mike Bogan Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road,  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Diagnostics with an X-ray Laser? Lessons from the First Diagnostics with an X-ray Laser? Lessons from the First Nanoscale Imaging of Airborne Particles Mike Bogan Stanford PULSE Institute, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo Park, CA 94025, USA What does airborne particulate matter look like? How do we develop quantitative descriptors for particles of complex morphology? These challenges were highlighted in the NIST workshop report "Aerosol Metrology Needs for Climate Science" (Dec, 2011). Sure, we can capture aerosol particles on surfaces - removing them from their airborne state - and probe them with high resolution optical and chemical imaging tools, but what information do we lose about the airborne particles? How can we follow dynamics? In this talk we will explore these very basic questions and their importance to combustion

207

Fuzzy logic approach to supervised segmentation of forest regions infested by Southern Pine Beetle using color airborne images  

E-Print Network [OSTI]

Digital image processing technique and fuzzy logic approach are used to identify forest areas infested with Southern Pine Beetle, SPB, using normal color airborne imageries in this research. This research will be used as a front end of a larger...

Ng, Kit-Tong

1994-01-01T23:59:59.000Z

208

Analysis of airborne visible-infrared imaging spectrometer (AVIRIS) data of the Iron Hill, Colorado, carbonatite-alkalic igneous complex  

Science Journals Connector (OSTI)

...obtained in the SAM analysis... airborne methods algorithms alkalic composition ash-flow tuff AVIRIS calibration carbonatites Cimmaron Fault Colorado faults geophysical methods hydrothermal alteration igneous rocks infrared methods intrusions Iron Hill Complex...

Lawrence C. Rowan; Timothy L. Bowers; James K. Crowley; Carmen Anton-Pacheco; Pablo Gumiel; Marguerite J. Kingston

209

Could Gaussian regenerative stations act as quantum repeaters?  

E-Print Network [OSTI]

Higher transmission loss diminishes the performance of optical communication|be it the rate at which classical or quantum data can be sent reliably, or the secure key generation rate of quantum key distribution (QKD). Loss compounds with distance|exponentially in an optical fiber, and inverse-square with distance for a free-space channel. In order to boost classical communication rates over long distances, it is customary to introduce regenerative relays at intermediate points along the channel. It is therefore natural to speculate whether untended regenerative stations, such as phase-insensitive or phase-sensitive optical amplifiers, could serve as repeaters for long-distance QKD. The primary result of this paper rules out all bosonic Gaussian channels to be useful as QKD repeaters, which include phase-insensitive and phase-sensitive amplifiers as special cases, for any QKD protocol. We also delineate the conditions under which a Gaussian relay renders a lossy channel entanglement breaking, which in turn makes the channel useless for QKD.

Ryo Namiki; Oleg Gittsovich; Saikat Guha; Norbert Lütkenhaus

2014-10-02T23:59:59.000Z

210

Magnetic insulation  

Science Journals Connector (OSTI)

... by Winterberg1, led me to look into the background of the idea of 'magnetic insulation'. The purpose of this letter is to point out that the scheme described in ... were presented earlier in a longer article2. In that article he suggested that 'magnetic insulation' might make possible a transformer for 109 V. A year later the same objections ...

JOHN P. BLEWETT

1974-06-28T23:59:59.000Z

211

Magnetism1  

Science Journals Connector (OSTI)

... is reached, the rate of diminution becomes very rapid indeed, until, finally, the magnetism of the iron disappears at the same time as for small forces. Instead of ... a lower maximum, and its rise is less rapid. The critical temperature at which magnetism disappears changes rapidly with the composition of the steel. For very soft charcoal iron ...

1890-01-23T23:59:59.000Z

212

Magnetism Group  

Science Journals Connector (OSTI)

... of the Institute of Physics and the Physical Society has announced the establishment of a Magnetism Group. The aim of the new Group is to further interest in ... Group. The aim of the new Group is to further interest in magnetism by holding regular discussion meetings and in other ways. It is intended that these ...

1965-09-04T23:59:59.000Z

213

Terrestrial Magnetism*  

Science Journals Connector (OSTI)

... A similar investigation of the effect of the moon's action on terrestrial magnetism requires a series of observations made at much less distant intervals than the monthly ones ... heat, from the central body of our system, or merely having its own inherent magnetism modified by solar action, then we must choose as our unit the lunation, or ...

1873-01-09T23:59:59.000Z

214

Terrestrial Magnetism*  

Science Journals Connector (OSTI)

... IN bringing before you this evening, gentlemen, the subject of terrestrial magnetism, it is not my intention to attempt to present you with an exhaustive paper ... clearly as I am able, what is the actual condition of our knowledge respecting the magnetism of the globe, and what the nature of its complex variations, without, however, ...

1873-01-02T23:59:59.000Z

215

Terrestrial Magnetism  

Science Journals Connector (OSTI)

... THE present activity of the department of terrestrial magnetism of the Carnegie Institution of Washington and the largeness of its future aims are alike ... a “progress report” which he contributes to the latest (March) number of Terrestrial Magnetism. The department, which has lately entered on its eleventh year, has under construetion ...

C. CHREE

1914-07-23T23:59:59.000Z

216

Remanent Magnetism  

Science Journals Connector (OSTI)

... STUDY of the natural remanent magnetism of rocks is becoming a familiar method for determining the direction of the Earth's ... the geomagnetic poles or of the continents themselves. An alternative use for measurements of remanent magnetism, namely, the determination of the temperature of formation of pyroclastic deposits, is described ...

1958-03-22T23:59:59.000Z

217

Magnetic shielding  

DOE Patents [OSTI]

A magnetically-conductive filler material bridges the gap between a multi-part magnetic shield structure which substantially encloses a predetermined volume so as to minimize the ingress or egress of magnetic fields with respect to that volume. The filler material includes a heavy concentration of single-magnetic-domain-sized particles of a magnetically conductive material (e.g. soft iron, carbon steel or the like) dispersed throughout a carrier material which is generally a non-magnetic material that is at least sometimes in a plastic or liquid state. The maximum cross-sectional particle dimension is substantially less than the nominal dimension of the gap to be filled. An epoxy base material (i.e. without any hardening additive) low volatility vacuum greases or the like may be used for the carrier material. The structure is preferably exposed to the expected ambient field while the carrier is in a plastic or liquid state so as to facilitate alignment of the single-magnetic-domain-sized particles with the expected magnetic field lines.

Kerns, J.A.; Stone, R.R.; Fabyan, J.

1985-02-12T23:59:59.000Z

218

Superconducting Magnets  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Mit Hilfe der Technologie supraleitender Magnete lassen sich in Mit Hilfe der Technologie supraleitender Magnete lassen sich in Ringbeschleunigern höhere Energien erreichen. Weil supraleitende Spulen keinen elektrischen Widerstand aufweisen, können damit stärkere Magnetfelder erzeugt werden. In normal leitenden Elektromagneten wird - wegen des elektrischen Widerstands der Drähte - die Spule aufgeheizt. Auf diese Weise geht sehr viel Energie in Form von Wärme verloren, was die Energiekosten dieser Magnete in die Höhe treibt. Supraleitende Spulen erlauben es, Magnete grosser Feldstärke unter günstigen Bedingungen zu betreiben und damit die Energiekosten zu senken. Durch den Einbau supraleitender Spulen in den Ringbeschleuniger von Fermilab konnte dessen Energie verdoppelt werden.Auch der im Bau befindliche "Large Hadron Collider" am CERN wird supraleitende Magnete

219

Magnetic nanotubes  

DOE Patents [OSTI]

A magnetic nanotube includes bacterial magnetic nanocrystals contacted onto a nanotube which absorbs the nanocrystals. The nanocrystals are contacted on at least one surface of the nanotube. A method of fabricating a magnetic nanotube includes synthesizing the bacterial magnetic nanocrystals, which have an outer layer of proteins. A nanotube provided is capable of absorbing the nanocrystals and contacting the nanotube with the nanocrystals. The nanotube is preferably a peptide bolaamphiphile. A nanotube solution and a nanocrystal solution including a buffer and a concentration of nanocrystals are mixed. The concentration of nanocrystals is optimized, resulting in a nanocrystal to nanotube ratio for which bacterial magnetic nanocrystals are immobilized on at least one surface of the nanotubes. The ratio controls whether the nanocrystals bind only to the interior or to the exterior surfaces of the nanotubes. Uses include cell manipulation and separation, biological assay, enzyme recovery, and biosensors.

Matsui, Hiroshi (Glen Rock, NJ); Matsunaga, Tadashi (Tokyo, JP)

2010-11-16T23:59:59.000Z

220

An investigation of sea surface temperature patterns in the Gulf of Mexico as determined by an airborne infrared sensor  

E-Print Network [OSTI]

radiation from the sea surface may be used to delineate reliable horizontal patterns of surface temperature. The airborne data nave revealed horizontal temperature changes of 1. 5C to 4. 0C across the boundary of the major current systems in the Gulf... Surface Temperature. . . . Radiation Characteristics of the Sea Surface. . . Atmospheric Attenuation and Emission of Long-Nave Radiation. III. INSTRPilEK'TATION AND AIRBORNE PLATFORvh . 16 General Radiometer 16 16 Aircraft and Navigational System...

Drennan, Kirby Lee

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Inheritance in turnip of variable-number tandem-repeat genetic markers revealed with synthetic repetitive DNA probes  

Science Journals Connector (OSTI)

Oligomers (16–26 mers) composed of short, tandemly repeated DNA sequences (3–10 bases) were used ... number of repeats to make 15 different PCR synthetic tandem-repeat (STR) probes. These PCR...Brassica rapa L.) ...

S. H. Rogstad

1994-12-01T23:59:59.000Z

222

"Airborne Wind Energy - Harnessing a Vast, Untapped Renewable Energy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

November 14, 2012, 4:15pm November 14, 2012, 4:15pm Colloquia MBG Auditorium "Airborne Wind Energy - Harnessing a Vast, Untapped Renewable Energy Source" Dr. Kenneth Jensen Makani Power Inc. At just 500 m above the ground, the average power density of the wind is double that at 100 m where wind turbines typically reside. This makes high-altitude wind one of the most concentrated forms of renewable energy after hydro-power. Building conventional wind turbines at this height is uneconomical, which begs the question: how do we harness this concentrated and completely untapped resource? Makani Power is developing a novel airborne wind turbine (AWT), which consists of a turbine-carrying aircraft that is tethered to the ground. Propelled by the wind, the AWT travels in a circular path (similar to the

223

INSIGHTS FROM LABORATORY AND AIRBORNE BRDF MEASUREMENTS FOR SATELLITE REMOTE SENSING  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Aerosols and Aerosols and Surface Optical Properties from Airborne Spectral Measurements of Directional Reflectance C.K.Gatebe 1,2 & M.D. King, 2,3 Collaborators: O. Dubovik, 4 A.Sinyuk, 2,5 P. Russell, 6 J. Redemann 6 Acknowledgements: G.T. Arnold (SSAI & GSFC) Gala Wind (SSAI & GSFC) Rajesh Poudyal (SSAI & GSFC) Hal Maring & Andy Roberts (NASA HQ) 1 University of Maryland, Baltimore County 2 NASA Goddard Space Flight Center 3 University of Colorado 4 Laboratoire d'Optique Atmosphérique 5 Science Systems and Applications Inc. 6 NASA Ames Research Center Background: CAR Airborne Platforms 1998-2008 NASA P-3B Convair CV-580 Aerocommander 690A Jetstream-31 AATS SSFR/BBR SSFR CAR The NASA P-3B 2008 BBR CAR Time CAR Quicklook Image 2008 http://car.gsfc.nasa.gov/data/ BRDF Measurements

224

A model for forming airborne synthetic aperture radar images of underground targets  

SciTech Connect (OSTI)

Synthetic Aperture Radar (SAR) from an airborne platform has been proposed for imaging targets beneath the earth`s surface. The propagation of the radar`s energy within the ground, however, is much different than in the earth`s atmosphere. The result is signal refraction, echo delay, propagation losses, dispersion, and volumetric scattering. These all combine to make SAR image formation from an airborne platform much more challenging than a surface imaging counterpart. This report treats the ground as a lossy dispersive half-space, and presents a model for the radar echo based on measurable parameters. The model is then used to explore various imaging schemes, and image properties. Dynamic range is discussed, as is the impact of loss on dynamic range. Modified window functions are proposed to mitigate effects of sidelobes of shallow targets overwhelming deeper targets.

Doerry, A.W.

1994-01-01T23:59:59.000Z

225

Device and method for accurately measuring concentrations of airborne transuranic isotopes  

DOE Patents [OSTI]

An alpha continuous air monitor (CAM) with two silicon alpha detectors and three sample collection filters is described. This alpha CAM design provides continuous sampling and also measures the cumulative transuranic (TRU), i.e., plutonium and americium, activity on the filter, and thus provides a more accurate measurement of airborne TRU concentrations than can be accomplished using a single fixed sample collection filter and a single silicon alpha detector.

McIsaac, Charles V. (Idaho Falls, ID); Killian, E. Wayne (Idaho Falls, ID); Grafwallner, Ervin G. (Arco, ID); Kynaston, Ronnie L. (Blackfoot, ID); Johnson, Larry O. (Pocatello, ID); Randolph, Peter D. (Idaho Falls, ID)

1996-01-01T23:59:59.000Z

226

Geophex Airborne Unmanned Survey System (GAUSS). Topical report, October 1993--March 1995  

SciTech Connect (OSTI)

The objectives of the project are to construct a geophysical sensor system based on a remotely operated model helicopter (ROH) and to evaluate the efficacy of the system for characterization of hazardous environmental sites. Geophex Airborne Unmanned Survey System (GAUSS) is a geophysical survey system that uses a ROH as the survey vehicle. We have selected the ROH because of its advantages over fixed wing and ground based vehicles. Lower air speed and superior maneuverability of the ROH make it better suited for geophysical surveys than a fixed wing model aircraft. The ROH can fly close to the ground, allowing detection of weak or subtle anomalies. Unlike ground based vehicles, the ROH can traverse difficult terrain while providing a stable sensor platform. ROH does not touch the ground during the course of a survey and is capable of functioning over water and surf zones. The ROH has been successfully used in the motion picture industry and by geology companies for payload bearing applications. The only constraint to use of the airborne system is that the ROH must remain visible to the pilot. Obstructed areas within a site can be characterized by relocating the base station to alternate positions. GAUSS consists of a ROH with radio controller, a data acquisition and processing (DAP) system, and lightweight digital sensor systems. The objective of our Phase I research was to develop a DAP and sensors suitable for ROH operation. We have constructed these subsystems and integrated them to produce an automated, hand-held geophysical surveying system, referred to as the ``pre-prototype``. We have performed test surveys with the pre-prototype to determine the functionality of the and DAP and sensor subsystems and their suitability for airborne application. The objective of the Phase II effort will be to modify the existing subsystems and integrate them into an airborne prototype. Efficacy of the prototype for geophysical survey of hazardous sites will then be determined.

NONE

1995-03-01T23:59:59.000Z

227

Production of potentially hazardous respirable silica airborne particulate from the burning of sugarcane  

Science Journals Connector (OSTI)

In some areas of the world where agricultural burning is practised, the airborne particles produced have been linked to respiratory disease in humans. Here, we investigate the abundance and form of silica (SiO2) minerals found within ash and aerosol produced by the experimental burning of sugarcane. Samples of sugarcane leaf were incinerated over a range of temperatures, time scales and airflow conditions, the latter to investigate the effects of wind and updrafts during natural fires. The silica content of the residual ash (from still air simulations) was measured using an improved wet chemical methodology, described here. This indicated that the release of silica from the plant material into the atmosphere increases with increasing temperature of combustion. Airborne particulate, sampled using air-pump-filter apparatus, was characterised using scanning electron microscopy (SEM) with automated image and elemental analysis. For airborne particulate formed at 1100 °C (with airflow), 17% of the particles are in the respirable size fraction (release of cristobalite to the atmosphere (as sampled on filters). This pilot study shows that potentially toxic particles could be released during sugarcane burning and reinforces the need for further study into the emissions and re-suspension of ash from the burning of biomass.

Jennifer S. Le Blond; Ben J. Williamson; Claire J. Horwell; Alex K. Monro; Caroline A. Kirk; Clive Oppenheimer

2008-01-01T23:59:59.000Z

228

Linear chain magnetism  

Science Journals Connector (OSTI)

Linear chain magnetism ... A brief introduction to this concept, which is also called lower dimensional magnetism. ...

Richard L. Carlin

1991-01-01T23:59:59.000Z

229

Fuel cell repeater unit including frame and separator plate  

DOE Patents [OSTI]

An example fuel cell repeater includes a separator plate and a frame establishing at least a portion of a flow path that is operative to communicate fuel to or from at least one fuel cell held by the frame relative to the separator plate. The flow path has a perimeter and any fuel within the perimeter flow across the at least one fuel cell in a first direction. The separator plate, the frame, or both establish at least one conduit positioned outside the flow path perimeter. The conduit is outside of the flow path perimeter and is configured to direct flow in a second, different direction. The conduit is fluidly coupled with the flow path.

Yamanis, Jean; Hawkes, Justin R; Chiapetta, Jr., Louis; Bird, Connie E; Sun, Ellen Y; Croteau, Paul F

2013-11-05T23:59:59.000Z

230

Low dimensional magnetism  

E-Print Network [OSTI]

Magnetism in Ultracold Gases 4 Magnetic phase diagram of aMagnetism . . . . . . . . . . . .1.3 Magnetism in condensedIntroduction 1 Brief introduction to magnetism 1.1 Classic

Kjall, Jonas Alexander

2012-01-01T23:59:59.000Z

231

Magnetic Viscosity  

Science Journals Connector (OSTI)

1 January 1893 research-article Magnetic Viscosity J. Hopkinson E. Wilson F. Lydall The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Proceedings of the Royal Society of London. www.jstor.org

1893-01-01T23:59:59.000Z

232

Rock magnetism  

Science Journals Connector (OSTI)

The past three decades have witnessed a new paradigm, the plate tectonics paradigm, in Earth sciences. The record of the Earth's magnetic field stored in rocks played a major role in the establishment of this par...

Ronald T. Merrill

1989-01-01T23:59:59.000Z

233

Learning About Magnets!  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the the National High Magnetic Field Laboratory Learning About Name A magnet is a material or object that creates a magnetic fi eld. This fi eld is invisible, but it creates a force that can "attract" or "repel" other magnets and magnetic materials, like iron or nickel. What is a Magnet? This bar magnet is a permanent magnet. Permanent magnets can be found in the Earth as rocks and metals. Magnets have

234

Controlling Magnetism at the Nanoscale  

E-Print Network [OSTI]

Manipulation of Magnetism - External148 Conclusion A The Magnetism Cheat Sheet A.1 Magnetic157 A.2 Magnetism Unit Conversion

Wong, Jared

2012-01-01T23:59:59.000Z

235

Neutrino magnetic moment in a magnetized plasma  

E-Print Network [OSTI]

The contribution of a magnetized plasma to the neutrino magnetic moment is calculated. It is shown that only part of the additional neutrino energy in magnetized plasma connecting with its spin and magnetic field strength defines the neutrino magnetic moment. It is found that the presence of magnetized plasma does not lead to the considerable increase of the neutrino magnetic moment in contrast to the results presented in literature previously.

N. V. Mikheev; E. N. Narynskaya

2010-11-08T23:59:59.000Z

236

E-Print Network 3.0 - add telomeric repeats Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Prevents... formation, and sister-chromatid co- hesion 3, 4. We now show that ORC localizes to telomere repeats... and contributes to telomere mainte- nance. We found...

237

E-Print Network 3.0 - ag dinucleotide repeats Sample Search Results  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

inverted-repeat transposable element (MITE) family initially recovered Source: Batzer, Mark A. - Department of Biological Sciences, Louisiana State University; Ray, David -...

238

E-Print Network 3.0 - agcn trinucleotide repeat Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Medicine 5 Autopsy-Proven Huntington Disease with 29 Trinucleotide Repeats Christopher Kenney, MD, Suzanne Powell, MD, Joseph Jankovic, MD Summary: Autopsy-Proven Huntington...

239

E-Print Network 3.0 - alpha-rod protein repeats Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

defense Cell envelope Mobile elements, phage proteins Leu-rich repeat... the Evolutionary History of Chlamydiae" (Horn et al.) Supporting Online Material 2 protein sequence...

240

Petroglyphs, Lighting, and Magnetism  

E-Print Network [OSTI]

1950 Electricity and Magnetism: Theory and Applications.I Petroglyphs, Lightning, and Magnetism | Walker Figure 8.I Petroglyphs, Lightning, and Magnetism | Walker Figure IL

Walker, Merle F

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Simultaneous Sampling of Indoor and Outdoor Airborne Radioactivity after the Fukushima Daiichi Nuclear Power Plant Accident  

Science Journals Connector (OSTI)

Simultaneous Sampling of Indoor and Outdoor Airborne Radioactivity after the Fukushima Daiichi Nuclear Power Plant Accident ... Large amts. of radioactive substances were released into the environment from the Fukushima Dai-ichi Nuclear Power Plants in eastern Japan as a consequence of the great earthquake (M 9.0) and tsunami of 11 March 2011. ... Proceedings of the International Symposium on Environmental Monitoring and Dose Estimation of Residents after Accident of TEPCO’s Fukushima Daiichi Nuclear Power Station; Shiran Hall, Kyoto, Japan, Dec 14, 2012; http://www.rri.kyoto-u.ac.jp/anzen_kiban/outcome/. ...

Tetsuo Ishikawa; Atsuyuki Sorimachi; Hideki Arae; Sarata Kumar Sahoo; Miroslaw Janik; Masahiro Hosoda; Shinji Tokonami

2014-01-22T23:59:59.000Z

242

Nature of airborne particulates at tropic exposure sites. Final report, November 1982-September 1984  

SciTech Connect (OSTI)

Airborne particulates were collected at five exposure sites in Panama using cascade impactor air samplers. Scanning electron microscopy, energy dispersive x-ray analysis, and culture identification techniques were used to analyze the particulates. Analysis revealed that the particulates consist of silicates, chlorides, and sulfur-rich and phosphorus-rich particles. Atmospheric particle levels were higher in the dry season than in the rainy season, and the predominant fungal species varied at each exposure site. The open direct exposure of culture plates served as a simple, appropriate method for monitoring atmospheric fungal spores.

Chen, F.; Dement, W.A.

1984-09-01T23:59:59.000Z

243

Advances in National Capabilities for Consequence Assessment Modeling of Airborne Hazards  

SciTech Connect (OSTI)

This paper describes ongoing advancement of airborne hazard modeling capabilities in support of multiple agencies through the National Atmospheric Release Advisory Center (NARAC) and the Interagency Atmospheric Modeling and Atmospheric Assessment Center (IMAAC). A suite of software tools developed by Lawrence Livermore National Laboratory (LLNL) and collaborating organizations includes simple stand-alone, local-scale plume modeling tools for end user's computers, Web- and Internet-based software to access advanced 3-D flow and atmospheric dispersion modeling tools and expert analysis from the national center at LLNL, and state-of-the-science high-resolution urban models and event reconstruction capabilities.

Nasstrom, J; Sugiyama, G; Foster, K; Larsen, S; Kosovic, B; Eme, B; Walker, H; Goldstein, P; Lundquist, J; Pobanz, B; Fulton, J

2007-11-26T23:59:59.000Z

244

Magnetic Catalysis vs Magnetic Inhibition  

E-Print Network [OSTI]

We discuss the fate of chiral symmetry in an extremely strong magnetic field B. We investigate not only quark fluctuations but also neutral meson effects. The former would enhance the chiral-symmetry breaking at finite B according to the Magnetic Catalysis, while the latter would suppress the chiral condensate once B exceeds the scale of the hadron structure. Using a chiral model we demonstrate how neutral mesons are subject to the dimensional reduction and the low dimensionality favors the chiral-symmetric phase. We point out that this effect, the Magnetic Inhibition, can be a feasible explanation for recent lattice-QCD data indicating the decreasing behavior of the chiral-restoration temperature with increasing B.

Kenji Fukushima; Yoshimasa Hidaka

2012-09-06T23:59:59.000Z

245

Magnetic Stereoscopy  

E-Print Network [OSTI]

The space mission STEREO will provide images from two viewpoints. An important aim of the STEREO mission is to get a 3D view of the solar corona. We develop a program for the stereoscopic reconstruction of 3D coronal loops from images taken with the two STEREO spacecraft. A pure geometric triangulation of coronal features leads to ambiguities because the dilute plasma emissions complicates the association of features in image 1 with features in image 2. As a consequence of these problems the stereoscopic reconstruction is not unique and multiple solutions occur. We demonstrate how these ambiguities can be resolved with the help of different coronal magnetic field models (potential, linear and non-linear force-free fields). The idea is that, due to the high conductivity in the coronal plasma, the emitting plasma outlines the magnetic field lines. Consequently the 3D coronal magnetic field provides a proxy for the stereoscopy which allows to eliminate inconsistent configurations. The combination of stereoscopy and magnetic modelling is more powerful than one of these tools alone. We test our method with the help of a model active region and plan to apply it to the solar case as soon as STEREO data become available.

Thomas Wiegelmann; Bernd Inhester

2006-12-21T23:59:59.000Z

246

Magnetism of Herbig Ae/Be stars  

E-Print Network [OSTI]

Observations of magnetic fields of stars at the pre-main sequence phase can provide important new insights into the complex physics of the late stages of star formation. This is especially true at intermediate stellar masses, where magnetic fields are strong and globally organised, and therefore most amenable to direct study. Recent circularly-polarised spectroscopic observations of pre-main sequence Herbig Ae/Be stars have revealed the presence of organised magnetic fields in the photospheres of a small fraction of these objects. To date, 9 magnetic HAeBe stars have been detected, and those detections confirmed by repeated observations. The morphology and variability of their Stokes V signatures indicates that their magnetic fields have important dipole components of kG strength, and that the dipole is stable on timescales ofat least years. These magnetic stars exhibit a large range of stellar mass, from about 2-13 solar masses, and diverse rotational properties, with vsini from a few km/s to 200 km/s. Most ...

Wade, G A; Grunhut, J; Catala, C; Bagnulo, S; Folsom, C P; Landstreet, J D

2009-01-01T23:59:59.000Z

247

A refined biomonitoring study of airborne particulate matter pollution in Rome, with magnetic measurements on Quercus Ilex tree leaves  

Science Journals Connector (OSTI)

......in cities both in space and time. We report...industry, domestic heating or vehicles, as...such as building constructions or natural fires...developed an industrial sector and it has little...favoured domestic heating or long-range...holder during the heating run. In this study......

Michael Szönyi; Leonardo Sagnotti; Ann M. Hirt

2008-04-01T23:59:59.000Z

248

A refined biomonitoring study of airborne particulate matter pollution in Rome, with magnetic measurements on Quercus Ilex tree leaves  

Science Journals Connector (OSTI)

......distance from fossil fuel power stations...quantification of pollution in Kathmandu...screening of a pollution hotspot in the...quantification of urban pollution sources in atmospheric...Biomonitoring of air quality in Cologne...spinel solid solutions, Phys. Chem......

Michael Szönyi; Leonardo Sagnotti; Ann M. Hirt

2008-04-01T23:59:59.000Z

249

Origin-Dependent Inverted-Repeat Amplification: A Replication-Based Model for Generating Palindromic  

E-Print Network [OSTI]

Viewpoints Origin-Dependent Inverted-Repeat Amplification: A Replication-Based Model for Generating in different ways--for example, by end-to- end fusion at short inverted repeats, by non-allelic homologous, the specific class of amplicons that consists of interstitial inverted tripli- cations has no completely

Dunham, Maitreya

250

The Excess of Small Inverted Repeats in Prokaryotes Emmanuel D. Ladoukakis Adam Eyre-Walker  

E-Print Network [OSTI]

The Excess of Small Inverted Repeats in Prokaryotes Emmanuel D. Ladoukakis Ã? Adam Eyre+Business Media, LLC 2008 Abstract Recent analyses have shown that there is a large excess of perfect inverted previously tends to underestimate the expected num- ber of inverted repeats. However, this bias is not large

Eyre-Walker, Adam

251

Saccharomyces cerevisiae Flap Endonuclease 1 Uses Flap Equilibration To Maintain Triplet Repeat Stability  

Science Journals Connector (OSTI)

...critical in maintaining genome stability. The rad27 mutant exhibits...plays a role in maintaining the stability of telomere repeat sequences...points out that formation of a bubble intermediate, resulting from...repeats can form fold-back and bubble structures in the 5 flap of...

Yuan Liu; Haihua Zhang; Janaki Veeraraghavan; Robert A. Bambara; Catherine H. Freudenreich

2004-05-01T23:59:59.000Z

252

Airborne release fractions/rates and respirable fractions for nonreactor nuclear facilities. Volume 1, Analysis of experimental data  

SciTech Connect (OSTI)

This handbook contains (1) a systematic compilation of airborne release and respirable fraction experimental data for nonreactor nuclear facilities, (2) assessments of the data, and (3) values derived from assessing the data that may be used in safety analyses when the data are applicable. To assist in consistent and effective use of this information, the handbook provides: identification of a consequence determination methodology in which the information can be used; discussion of the applicability of the information and its general technical limits; identification of specific accident phenomena of interest for which the information is applicable; and examples of use of the consequence determination methodology and airborne release and respirable fraction information.

Not Available

1994-12-01T23:59:59.000Z

253

Flight Testing of an Advanced Airborne Natural Gas Leak Detection System  

SciTech Connect (OSTI)

ITT Industries Space Systems Division (Space Systems) has developed an airborne natural gas leak detection system designed to detect, image, quantify, and precisely locate leaks from natural gas transmission pipelines. This system is called the Airborne Natural Gas Emission Lidar (ANGEL) system. The ANGEL system uses a highly sensitive differential absorption Lidar technology to remotely detect pipeline leaks. The ANGEL System is operated from a fixed wing aircraft and includes automatic scanning, pointing system, and pilot guidance systems. During a pipeline inspection, the ANGEL system aircraft flies at an elevation of 1000 feet above the ground at speeds of between 100 and 150 mph. Under this contract with DOE/NETL, Space Systems was funded to integrate the ANGEL sensor into a test aircraft and conduct a series of flight tests over a variety of test targets including simulated natural gas pipeline leaks. Following early tests in upstate New York in the summer of 2004, the ANGEL system was deployed to Casper, Wyoming to participate in a set of DOE-sponsored field tests at the Rocky Mountain Oilfield Testing Center (RMOTC). At RMOTC the Space Systems team completed integration of the system and flew an operational system for the first time. The ANGEL system flew 2 missions/day for the duration for the 5-day test. Over the course of the week the ANGEL System detected leaks ranging from 100 to 5,000 scfh.

Dawn Lenz; Raymond T. Lines; Darryl Murdock; Jeffrey Owen; Steven Stearns; Michael Stoogenke

2005-10-01T23:59:59.000Z

254

magnets2  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

II II Painless Physics Articles BEAM COOLING August 2, 1996 By Leila Belkora, Office of Public Affairs ACCELERATION August 16, 1996 By Dave Finley, Accelerator Division Head RF August 30, 1996 By Pat Colestock, Accelerator Division FIXED TARGET PHYSICS September 20, 1996 By Peter H. Garbincius, Physics Section FIXED TARGET PHYSICS PART DEUX October 16, 1996 By Peter H. Garbincius, Physics Section and Leila Belkora, Office of Public Affaris CROSS SECTION November 1, 1996 By Doreen Wackeroth, Theoretical Physics Edited by Leila Belkora, Office of Public Affaris MAGNETS PART I November 15, 1996 By Hank Glass, Technical Support Section Edited by Donald Sena, Office of Public Affairs MAGNETS PART II January 10, 1997 By Hank Glass, Technical Support Section Edited by Donald Sena, Office of Public Affairs

255

Magnetic Reconnection  

SciTech Connect (OSTI)

We review the fundamental physics of magnetic reconnection in laboratory and space plasmas, by discussing results from theory, numerical simulations, observations from space satellites, and the recent results from laboratory plasma experiments. After a brief review of the well-known early work, we discuss representative recent experimental and theoretical work and attempt to interpret the essence of significant modern findings. In the area of local reconnection physics, many significant findings have been made with regard to two- uid physics and are related to the cause of fast reconnection. Profiles of the neutral sheet, Hall currents, and the effects of guide field, collisions, and micro-turbulence are discussed to understand the fundamental processes in a local reconnection layer both in space and laboratory plasmas. While the understanding of the global reconnection dynamics is less developed, notable findings have been made on this issue through detailed documentation of magnetic self-organization phenomena in fusion plasmas. Application of magnetic reconnection physics to astrophysical plasmas is also brie y discussed.

Masaaki Yamada, Russell Kulsrud and Hantao Ji

2009-09-17T23:59:59.000Z

256

A comparison of cloud top heights computed from airborne lidar and MAS radiance data using CO2 slicing  

E-Print Network [OSTI]

A comparison of cloud top heights computed from airborne lidar and MAS radiance data using CO2 in assessing the accuracy of the CO2-slicing cloud height algorithm. Infrared measurements of upwelling which included various single- layer and multilayer cloud conditions. Overall, the CO2-slicing method

Sheridan, Jennifer

257

Detecting Moving Objects in Airborne Forward Looking InfraRed Sequences Alexander Strehl and J. K. Aggarwal \\Lambda  

E-Print Network [OSTI]

looking infra­red (FLIR) image sequences taken from an airborne, moving platform. Ego­motion effects classification system. 1 Introduction 1.1 Motivation Forward looking infra­red (FLIR) images are frequently used static FLIR images. A comprehensive recent review by Ratches, Wal­ \\Lambda This research was supported

Strehl, Alexander

258

Detecting Moving Objects in Airborne Forward Looking Infra-Red Sequences Alexander Strehl and J. K. Aggarwal  

E-Print Network [OSTI]

-red (FLIR) image sequences taken from an airborne, moving platform. Ego-motion effects are removed through system. 1 Introduction 1.1 Motivation Forward looking infra-red (FLIR) images are frequently used static FLIR images. A comprehensive recent review by Ratches, Wal- £ This research was supported in part

Strehl, Alexander

259

Snow growth and transport patterns in orographic storms as estimated from airborne vertical-plane dual-Doppler radar data  

Science Journals Connector (OSTI)

Airborne vertical-plane dual-Doppler cloud radar data, collected on wind-parallel flight legs over a mountain in Wyoming in 16 winter storms, are used to analyze the growth, transport, and sedimentation of snow. In all storms the wind is rather ...

Bart Geerts; Yang Yang; Roy Rasmussen; Samuel Haimov; Binod Pokharel

260

Ambient Airborne Solids Concentrations Including Volcanic Ash at Hanford, Washington Sampling Sites Subsequent to the Mount St. Helens Eruption  

SciTech Connect (OSTI)

A major eruption of Mount St. Helens occurred on May 18, 1980. Subsequently, airborne solid concentrations were measured as a function of time at two sites within the southern edge of the fallout plume about 211 km east of Mount St. Helens. This ash was a source for investigating area-wide resuspension. Rain had a variable effect on decreasing airborne concentrations from resuspension. From 0.5 to 1.5 cm of rain were required to significantly reduce airborne solid concentrations through July. For a more aged resuspension source in September, a rain of 2.0 cm had a negligible effect. A monthly average threshold-wind speed for resuspension was defined as 3.6 m/s. For monthly-average wind speeds less than the threshold wind speed, monthly-average airborne concentrations tended to decrease with time. A decrease was recorded between September and October. For this 4-month time period, the half-life was on the order of 50 days, corresponding to a weathering rate of 5.1 year/sup -1/.

Sehmel, G.A.

1982-12-20T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Call for Student Demos and Posters on Unmanned Aerial Systems AIAA workshop on "Airborne Networks and Communications"  

E-Print Network [OSTI]

Call for Student Demos and Posters on Unmanned Aerial Systems AIAA workshop on "Airborne Networks, this workshop will also include a session on student posters and demonstrations of unmanned aerial vehicles. Undergraduate and graduate students whose posters and demos are selected for presentation will be provided

Namuduri, Kamesh

262

Characterization of Airborne Molds, Endotoxins, and Glucans in Homes in New Orleans after Hurricanes Katrina and Rita  

Science Journals Connector (OSTI)

...Airborne Molds, Endotoxins, and Glucans in Homes in New Orleans after Hurricanes Katrina...leading to extraordinary mold growth in homes. To characterize the potential risks of...molds and bacteria in New Orleans area homes. In October 2005, we collected air samples...

Carol Y. Rao; Margaret A. Riggs; Ginger L. Chew; Michael L. Muilenberg; Peter S. Thorne; David Van Sickle; Kevin H. Dunn; Clive Brown

2007-01-05T23:59:59.000Z

263

Magnetic Reconnection in Astrophysical and  

E-Print Network [OSTI]

Magnetic Reconnection in Astrophysical and Laboratory Plasmas Ellen G. Zweibel1 and Masaaki Yamada2 astrophysics, magnetic fields, magnetic reconnection Abstract Magnetic reconnection is a topological rearrangement of magnetic field that converts magnetic energy to plasma energy. Astrophysical flares, from

264

Electronic Structure and Magnetism in Diluted Magnetic Semiconductors  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Electronic Structure and Magnetism in Diluted Magnetic Semiconductors Electronic Structure and Magnetism in Diluted Magnetic Semiconductors Print Wednesday, 29 November 2006 00:00...

265

National High Magnetic Field Laboratory Audio Dictionary: Magnetic...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Links Magnets from Mini to Mighty Meet the Magnets How to Make an Electromagnet (audio slideshow) Compasses in Magnetic Fields (interactive tutorial) Magnetic Field Around a...

266

Superconducting magnet  

DOE Patents [OSTI]

A superconducting magnet designed to produce magnetic flux densities of the order of 4 to 5 Webers per square meter is constructed by first forming a cable of a plurality of matrixed superconductor wires with each wire of the plurality insulated from each other one. The cable is shaped into a rectangular cross-section and is wound with tape in an open spiral to create cooling channels. Coils are wound in a calculated pattern in saddle shapes to produce desired fields, such as dipoles, quadrupoles, and the like. Wedges are inserted between adjacent cables as needed to maintain substantially radial placement of the long dimensions of cross sections of the cables. After winding, individual strands in each of the cables are brought out to terminals and are interconnected to place all of the strands in series and to maximize the propagation of a quench by alternating conduction from an inner layer to an outer layer and from top half to bottom half as often as possible. Individual layers are separated from others by spiraled aluminum spacers to facilitate cooling. The wound coil is wrapped with an epoxy tape that is cured by heat and then machined to an interference fit with an outer aluminum pipe which is then affixed securely to the assembled coil by heating it to make a shrink fit. In an alternate embodiment, one wire of the cable is made of copper or the like to be heated externally to propagate a quench.

Satti, John A. (Naperville, IL)

1980-01-01T23:59:59.000Z

267

Airborne Release Fractions/Rates and Respirable Fractions for Nonreactor Nuclear Facilities, Volume II  

Broader source: Energy.gov (indexed) [DOE]

TS NOT MEASUREMENT SENSITIVE DOE-HDBK-3010-94 December 1994 Reaffirmed 2013 DOE HANDBOOK AIRBORNE RELEASE FRACTIONS/RATES AND RESPIRABLE FRACTIONS FOR NONREACTOR NUCLEAR FACILITIES Volume II - Appendices U.S. Department of Energy AREA SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. This document has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office of Scientific and Technical Information, P.O. Box 62, Oak Ridge, TN 37831; (615) 576-8401. Available to the public from the U.S. Department of Commerce, Technology Administration, National Technical Information Service, Springfield, VA 22161; (703) 487-4650. Order No. DE95004711 DOE-HDBK-3010-94

268

An Energy-Aware Airborne Dynamic Data-Driven Application System for Persistent Sampling and Surveillance  

Science Journals Connector (OSTI)

Abstract This paper describes an energy-aware, airborne, dynamic data-driven application systems for persistent sensing in complex atmospheric conditions. The work combines i.) new onboard and remote real-time, wind sensing capabilities; ii.) online models for planning based on Gaussian processes for onboard data and dynamic atmospheric models that assimilate Doppler radar data; and iii.) a hierarchical guidance and control framework with algorithms that can adapt to environmental, sensing, and computational resources. The novel aspects of this work include real-time synthesis of multiple Doppler radar data into wind field measurements; creation of atmospheric models for online planning that can be run inside guidance loops; guidance algorithms based on stochastic dynamic programming and ordered upwind methods that can adapt planning horizons, cost function approximations, and mesh representations of the environment; and throttling algorithms that manage the adaptation of the models and guidance algorithms in response to computational resources.

Eric W. Frew; Brian Argrow; Adam Houston; Chris Weiss; Jack Elston

2013-01-01T23:59:59.000Z

269

Cloud Model Evaluation Using Radiometric Measurements from the Airborne Multiangle Imaging Spectroradiometer (AirMISR)  

SciTech Connect (OSTI)

Detailed information on cloud properties is needed to vigorously test retrieval algorithms for satellite and ground-based remote sensors. The inherent complexity of clouds makes this information difficult to obtain from observations alone and cloud resolving models are often used to generating synthetic datasets that can be used as proxies for real data. We test the ability of a cloud resolving model to reproduce cloud structure in a case study of low-level clouds observed by the Earth Observing System (EOS) validation program in north central Oklahoma on March 3, 2000. A three-dimensional radiative transfer model is applied to synthetic cloud properties generated by a high-resolution three-dimensional cloud model in order to simulate the top of atmosphere radiances. These synthetic radiances are then compared with observations from the airborne Multiangle Imaging SpectroRadiometer (AirMISR), flown on the NASA ER-2 high-altitude aircraft.

Ovtchinnikov, Mikhail; Marchand, Roger T.

2007-03-01T23:59:59.000Z

270

Evidence of Airborne Transmission of the Severe Acute Respiratory Syndrome Virus  

Science Journals Connector (OSTI)

...rates through doorways and windows (closed and open) were assumed to be dependent on differences in air pressure. Differences in air temperature and winds, as well as the exhaust from fans, could introduce driving pressures. We used the software program MIX, which was developed by Li et al. to model the... This analysis used detailed airflow-dynamics studies to model the possible airborne spread of the virus in the large outbreak of the severe acute respiratory syndrome (SARS) in the Amoy Gardens housing complex in Hong Kong. The spatial distribution of the cases supports the hypothesis that a single index patient was the source of infection and the infection was spread by virus-laden aerosols.

Yu I.T.S.; Li Y.; Wong T.W.

2004-04-22T23:59:59.000Z

271

Airborne Release Fractions/Rates and Respirable Fractions for Nonreactor Nuclear Facilities, Volume 1  

Broader source: Energy.gov (indexed) [DOE]

TS NOT MEASUREMENT SENSITIVE DOE-HDBK-3010-94 December 1994 Reaffirmed 2013 DOE HANDBOOK AIRBORNE RELEASE FRACTIONS/RATES AND RESPIRABLE FRACTIONS FOR NONREACTOR NUCLEAR FACILITIES Volume I - Analysis of Experimental Data U.S. Department of Energy AREA SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. This document has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office of Scientific and Technical Information, P.O. Box 62, Oak Ridge, TN 37831; (615) 576-8401. Available to the public from the U.S. Department of Commerce, Technology Administration, National Technical Information Service, Springfield, VA 22161; (703) 487-4650.

272

Tandem and cryptic amino acid repeats accumulate in disordered regions of proteins  

Science Journals Connector (OSTI)

Amino acid repeats (AARs) are common features of protein sequences. They often evolve rapidly and are involved in a number of human diseases. They also show significant associations with particular Gene Ontolo...

Michelle Simon; John M Hancock

2009-06-01T23:59:59.000Z

273

Crystal structure of porcine ribonuclease inhibitor, a protein with leucine-rich repeats  

Science Journals Connector (OSTI)

... phases was modified by solvent flattening34, yielding an interpretable map which was further improved by re-refining the heavy-atom parameters with the phases obtained after solvent flattening and repeating the solvent ...

Bostjan Kobe; Johann Deisenhofer

1993-12-30T23:59:59.000Z

274

E-Print Network 3.0 - ankyrin repeat domain-containing Sample...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

domain-containing Search Powered by Explorit Topic List Advanced Search Sample search results for: ankyrin repeat domain-containing Page: << < 1 2 3 4 5 > >> 1 Ankyrin-B...

275

Elastic parameters of a water-based magnetic liquid  

SciTech Connect (OSTI)

The authors repeat studies on the acoustic parameters of water-based magnetic liquids to find a better method of measuring the speed and to cover a wider concentration range. The pulse method is used, as it works well in measuring the speed of sound in ordinary liquids. A figure shows the block diagram. Figures show the dependence of magnetization on field strength and temperature dependence of ultrasound. The speeds measured for the specimens show that the parameter obtained remains constant within the errors of measurement in longitudinal and transverse fields.

Berkovskii, B.M.

1986-07-01T23:59:59.000Z

276

Occupational exposures of airborne trichloramine at indoor swimming pools in Taipei  

Science Journals Connector (OSTI)

Abstract Ten indoor swimming pools in Taipei, Taiwan were included in the study to assess the exposure of people to airborne trichloramine (NCl3) and also to discover the factors that might affect the associated concentrations. An active air sampling method was performed to determine the levels of NCl3, while questionnaires were administered to swimming pool workers, including lifeguards, swimming instructors, and management employees. The results show that the concentrations of trichloramine ranged from 0.017 to 0.15 mg m? 3, which were generally lower than what have been reported from other studies. Symptoms of sore throat and phlegm were more frequent among lifeguards and swimming instructors (exposure group) than management employees (reference group) (odds ratios were 11.28 and 4.22 for sore throat and phlegm, respectively). It seems that the current exposure limit for airborne NCl3, which was recommended by WHO, was not lower enough to protect the health of pool attendants. Regulated level of free available chlorine in Taipei (i.e., 0.3–0.7 ppm) is lower than what is required in other countries (e.g., 1–3 ppm in the UK). This might be the main reason why the concentrations of \\{NCl3\\} reported elsewhere were higher than what were found in this research. Further international comparisons will help to elucidate if low free chlorine concentration should be adopted as an operating standard. For the indoor swimming pools in Taipei, the air quality is suggested to be improved, since even with the low concentrations of NCl3, higher respiratory ailments among pool workers were observed.

Tsai-Shu Chu; Shu-Fang Cheng; Gen-Shuh Wang; Shih-Wei Tsai

2013-01-01T23:59:59.000Z

277

Assessing sources of airborne mineral dust and other aerosols, in Iraq  

Science Journals Connector (OSTI)

Most airborne particulate matter in Iraq comes from mineral dust sources. This paper describes the statistics and modeling of chemical results, specifically those from Teflon® filter samples collected at Tikrit, Balad, Taji, Baghdad, Tallil and Al Asad, in Iraq, in 2006/2007. Methodologies applied to the analytical results include calculation of correlation coefficients, Principal Components Analysis (PCA), and Positive Matrix Factorization (PMF) modeling. PCA provided a measure of the covariance within the data set, thereby identifying likely point sources and events. These include airborne mineral dusts of silicate and carbonate minerals, gypsum and salts, as well as anthropogenic sources of metallic fumes, possibly from battery smelting operations, and emissions of leaded gasoline vehicles. Five individual PMF factors (source categories) were modeled, four of which being assigned to components of geological dust, and the fifth to gasoline vehicle emissions together with battery smelting operations. The four modeled geological components, dust-siliceous, dust-calcic, dust-gypsum, and evaporate occur in variable ratios for each site and size fraction (TSP, PM10, and PM2.5), and also vary by season. In general, Tikrit and Taji have the largest and Al Asad the smallest percentages of siliceous dust. In contrast, Al Asad has the largest proportion of gypsum, in part representing the gypsiferous soils in that region. Baghdad has the highest proportions of evaporite in both size fractions, ascribed to the highly salinized agricultural soils, following millennia of irrigation along the Tigris River valley. Although dust storms along the Tigris and Euphrates River valleys originate from distal sources, the mineralogy bears signatures of local soils and air pollutants.

Johann P. Engelbrecht; R.K.M. Jayanty

2013-01-01T23:59:59.000Z

278

Learning About Magnets!  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

by the National High Magnetic Field Laboratory Learning About Name A magnet is a material or object that creates a magnetic fi eld. This fi eld is invisible, but it creates a...

279

Interface Magnetism in Multiferroics  

E-Print Network [OSTI]

1.2.1 Magnetism . . . . . . . . . . . . . . . . . . . 1.2.2domain walls . . . . . 3 Magnetism of domain walls in BiFeOof electrical control of magnetism in mixed phase BiFeO 3

He, Qing

2011-01-01T23:59:59.000Z

280

Femtosecond Opto-Magnetism  

Science Journals Connector (OSTI)

We demonstrate that circularly polarized laser pulses may selectively excite different modes of magnetic resonance, realize quantum control of magnons, trigger magnetic phase...

Kimel, Alexey; Kirilyuk, A; Rasing, Th

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Repeated episodes of chronic intermittent ethanol promote insensitivity to devaluation of the reinforcing effect of ethanol  

Science Journals Connector (OSTI)

Abstract Studies in animal models have shown that repeated episodes of alcohol dependence and withdrawal promote escalation of drinking that is presumably associated with alterations in the addiction neurocircuitry. Using a lithium chloride-ethanol pairing procedure to devalue the reinforcing properties of ethanol, the present study determined whether multiple cycles of chronic intermittent ethanol (CIE) exposure by vapor inhalation also alters the sensitivity of drinking behavior to the devaluation of ethanol's reinforcing effects. The effect of devaluation on operant ethanol self-administration and extinction was examined in mice prior to initiation of CIE (short drinking history) and after repeated cycles of CIE or air control exposure (long drinking history). Devaluation significantly attenuated the recovery of baseline ethanol self-administration when tested either prior to CIE or in the air-exposed controls that had experienced repeated bouts of drinking but no CIE. In contrast, in mice that had undergone repeated cycles of CIE exposure that promoted escalation of ethanol drinking, self-administration was completely resistant to the effect of devaluation. Devaluation had no effect on the time course of extinction training in either pre-CIE or post-CIE mice. Taken together, these results are consistent with the suggestion that repeated cycles of ethanol dependence and withdrawal produce escalation of ethanol self-administration that is associated with a change in sensitivity to devaluation of the reinforcing properties of ethanol.

M.F. Lopez; H.C. Becker; L.J. Chandler

2014-01-01T23:59:59.000Z

282

Quadrupole magnets measurement  

SciTech Connect (OSTI)

A rotating coil setup is designed for quadrupole magnet measurement at the Accelerator Test Facility (ATF); Hall probe measurement was also performed for one of each type of quadrupole magnet. Both mechanical and magnetic properties of the quadrupole magnets were measured, the results are reported here. 5 refs., 12 figs., 12 tabs.

Wang, Xijie (California Univ., Los Angeles, CA (USA). Center for Advanced Accelerators Physics); Sylvester, C. (Brookhaven National Lab., Upton, NY (USA))

1991-01-01T23:59:59.000Z

283

Magnetic Imaging Wolfgang Kuch  

E-Print Network [OSTI]

Magnetic Imaging Wolfgang Kuch Freie Universit¨at Berlin, Institut f¨ur Experimentalphysik, Arnimallee 14, 14195 Berlin, Germany kuch@physik.fu-berlin.de Abstract. Imaging of magnetic domains has- ern techniques is used nowadays routinely for magnetic imaging of magnetic ma- terials

Kuch, Wolfgang

284

Magnetism in Nanocrystalline Gold  

Science Journals Connector (OSTI)

Magnetism in Nanocrystalline Gold ... Bridging the current gap in experimental study of magnetism in bare gold nanomaterials, we report here on magnetism in gold nanocrystalline films produced by cluster deposition in the aggregate form that can be considered as a crossover state between a nanocluster and a continuous film. ... gold; nanocrystalline film; magnetism; cluster deposition; SQUID magnetometry ...

Vladimir Tuboltsev; Alexander Savin; Alexandre Pirojenko; Jyrki Räisänen

2013-07-07T23:59:59.000Z

285

Magnetism of spiral galaxies  

Science Journals Connector (OSTI)

... magnetic fields of spiral galaxies has taken a special place in the study of cosmic magnetism, but magnetic fields are a universal property of all galactic-type objects, as is ... . The past ten years have been notable for rapid, qualitative progress in understanding the magnetism of spiral galaxies, a result of both theoretical and observational developments. A few decades ...

Alexander Ruzmaikin; Dmitry Sokoloff; Anvar Shukurov

1988-11-24T23:59:59.000Z

286

Magnetism in microquasars  

Science Journals Connector (OSTI)

...Lynden-Bell, E. R. Priest and N. O. Weiss Magnetism in microquasars I. F. Mirabel Centre...binaries|magnetic field|plasma physics| Magnetism in microquasars By I. F. Mirabel Centre...Trans. R. Soc. Lond. A (2000) Magnetism in microquasars 843 At rst glance it...

2000-01-01T23:59:59.000Z

287

Early History of Magnetism  

Science Journals Connector (OSTI)

... 2, Dr. J. B. Kramer read a paper on “The Early History of Magnetism”, in which he discussed the various accounts of the first discovery of a magnet ... accounts of the first discovery of a magnet, and the development of the science of magnetism down to A.D. 1600. His remarks were divided into five sections, the ...

1932-03-19T23:59:59.000Z

288

Capability of air filters to retain airborne bacteria and molds in heating, ventilating and air-conditioning (HVAC) systems  

Science Journals Connector (OSTI)

The capability of air filters (filterclass: F6, F7) to retain airborne outdoor microorganisms was examined in field experiments in two heating, ventilating and air conditioning (HVAC) systems. At the beginning of the 15-month investigation period, the first filter stages of both HVAC systems were equipped with new unused air filters. The number of airborne bacteria and molds before and behind the filters were determined simultaneously in 14 days-intervals using 6-stage Andersen cascade impactors. Under relatively dry ( 12 °C) outdoor air conditions air filters led to a marked reduction of airborne microorganism concentrations (bacteria by approximately 70 % and molds by > 80 %). However, during long periods of high relative humidity (> 80 % R. H.) a proliferation of bacteria on air filters with subsequent release into the filtered air occured. These microorganisms were mainly smaller than 1.1 ?m therefore being part of the respirable fraction. The results showed furthermore that one possibility to avoid microbial proliferation is to limit the relative humidity in the area of the air filters to 80 % R. H. (mean of 3 days), e. g. by using preheaters in front of air filters in HVAC-systems.

Martin Möritz; Hans Peters; Bettina Nipko; Hennin Rüden

2001-01-01T23:59:59.000Z

289

Magnetic Fields Analogous to electric field, a magnet  

E-Print Network [OSTI]

characteristic of elementary particles such as an electron #12;Magnetic Fields Magnetic field lines Direction;Magnetic Fields Magnetic field lines enter one end (south) of magnet and exit the other end (north) Opposite magnetic poles attract like magnetic poles repel #12;Like the electric field lines

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

290

Exact analysis of a practical quantum repeater architecture with noisy elements  

E-Print Network [OSTI]

We analyze a long-distance entanglement-based quantum key distribution (QKD) architecture that uses a chain of multi-mode atomic-memory-based quantum repeaters employing linear-optic Bell-state measurements, frequency-multiplexed broadband sources of entanglement, and classical-only error correction, i.e., no quantum purification---which typically is the hardest step in conventional repeater protocols. We find an exact expression for the secret-key rate, and an analytical characterization of how errors propagate through the repeater links in the chain, as a function of the loss and noise parameters of the memories, channel, and detectors. We assume the sources to have zero two-pair emission probability, i.e., p(2)=0, to develop the exact analytical results. We then present numerical results that suggest that the aforesaid error-propagation scaling also holds with non-zero two-pair-emission rates, with a p(2)-dependent correction to the constant term in the scaling law. We show that our repeater architecture achieves a rate-loss scaling that far surpasses the recently-found fundamental upper limit to the rate-loss scaling achievable by any QKD protocol without quantum repeaters, given the same pulse repetition rate and frequency-bandwidth. We show how various source and detector non-idealities affect the rate-loss envelope, and that the effect of the principle detriments can be separately assessed. Aside from the QKD rate calculations, we also exactly characterize the evolution of the end-to-end entangled quantum state through the repeater chain, which could be useful to analyze other distributed quantum information protocols that require establishing long-distance entanglement.

Saikat Guha; Hari Krovi; Christopher A. Fuchs; Zachary Dutton; Joshua A. Slater; Christoph Simon; Wolfgang Tittel

2014-10-20T23:59:59.000Z

291

Heat transfer and pressure drop in square duct with two opposite repeated rib-roughened walls  

E-Print Network [OSTI]

HEAT TRANSFER AND PRESSURE DROP IN SQUARE DUCT WITH TWO OPPOSITE REPEATED RIB-ROUGHENED WALLS A Thesis CHIANG-KUO LEI Submitted to the Graduate College of Texas ARM University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1983 Major Subject: Mechanical Engineering HEAT TRANSFER AND PRESSURE DROP IN SQUARE DUCT WITH TWO OPPOSITE REPEATED RIB-ROUGHENED WALLS A Thesis by CHIANG-KUO LEI Approved as to style and content by: , ~p= jd~. = e-C in Han...

Lei, Chiang-Kuo

2012-06-07T23:59:59.000Z

292

Characteristics of airborne coal mine dust and its implication to coal workers' pneumoconiosis  

SciTech Connect (OSTI)

Size selective airborne dust samples were collected using 4-stage cassette impactors at nine different locations in continuous mining sections in each of five coal seams located in the Appalachian bituminous coal field. These coal seams were the Upper Freeport, Pittsburgh, Kittanning, Coalburg, and Pocahontas. Mineralogical analyses were performed by an x-ray powder diffraction photographic technique. The distributions of total and respirable dust concentrations were fit best by a log-normal distribution. The effects of the coal seam and the sampling location on dust levels were significant. The results of the particle size distribution analyses suggest that coal mine dust has a multi-modal distribution. The effects of the coal seam and the sampling locations were significant. The distributions obtained were often affected by such mine-related variables as ventilation rate, relative humidity, and the section dimensions. Nine minerals commonly found in the coal mine dust samples collected from the coal seams studied were illite, calcite, kaolinite, quartz, dolomite, siderite, gypsum, anhydrite, and pyrite in descending order of magnitude. Relative abundance of all mineral species except siderite and gypsum was coal seam specific and suggests that existence of coal seam variability of mineral content. Although mineral content was affected by sampling locations and the sections within a mine, the magnitude was small when compared with that of cal seams. Mineral content also appears to be affected by particle size, although no particular pattern was observed.

Kim, H.

1989-01-01T23:59:59.000Z

293

Alternate particle removal technologies for the Airborne Activity Confinement System at the Savannah River Site  

SciTech Connect (OSTI)

This report presents a review of the filtration technologies available for the removal of particulate material from a gas stream. It was undertaken to identify alternate filtration technologies that may be employed in the Airborne Activity Confinement System (AACS) at the Savannah River Plant. This report is organized into six sections: (1) a discussion of the aerosol source term and its definition, (2) a short discussion of particle and gaseous contaminant removal mechanisms, (3) a brief overview of particle removal technologies, (4) a discussion of the existing AACS and its potential shortcomings, (5) an enumeration of issues to be addressed in upgrading the AACS, and, (6) a detailed discussion of the identified technologies. The purpose of this report is to identity available options to the existing particle removal system. This system is in continuous operation during routine operation of the reactor. As will be seen, there are a number of options and the selection of any technology or combination of technologies will depend on the design aerosol source term (yet to be appropriately defined) as well as the flow requirements and configuration. This report does not select a specific technology. It focuses on particulate removal and qualitatively on the removal of radio-iodine and mist elimination. Candidate technologies have been selected from industrial and nuclear gas cleaning applications.

Brockmann, J.E.; Adkins, C.L.J.; Gelbard, F. [Sandia National Labs., Albuquerque, NM (United States)

1991-09-01T23:59:59.000Z

294

Airborne gamma-ray spectrometer and magnetometer survey: Chico quadrangle, California. Final report  

SciTech Connect (OSTI)

An airborne high sensitivity gamma-ray spectrometer and magnetometer survey was conducted over ten (10) areas over northern California and southwestern Oregon. These include the 2/sup 0/ x 1/sup 0/ NTMS quadrangles of Roseburg, Medford, Weed, Alturas, Redding, Susanville, Ukiah, and Chico along with the 1/sup 0/ x 2/sup 0/ areas of the Coos Bay quadrangle and the Crescent City/Eureka areas combined. This report discusses the results obtained over the Chico, California, map area. Traverse lines were flown in an east-west direction at a line spacing of three. Tie lines were flown north-south approximately twelve miles apart. A total of 16,880.5 line miles of geophysical data were acquired, compiled, and interpreted during the survey, of which 3026.4 line miles are in the quadrangle. The purpose of this study is to acquire and compile geologic and other information with which to assess the magnitude and distribution of uranium resources with which to assess the magnitude and distribution of uranium resources and to determine areas favorable for the occurrence of uranium in the United States.

Not Available

1981-05-01T23:59:59.000Z

295

HTS Magnet Program | Superconducting Magnet Division  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

HTS Magnet Program HTS Magnet Program High Temperature Superconductors (HTS) have the potential to revolutionize the field of superconducting magnets for particle accelerators, energy storage and medical applications. This is because of the fact that as compared to the conventional Low Temperature Superconductors (LTS), the critical current density (Jc ) of HTS falls slowly both: as a function of increasing field, and as a function of increasing temperature These unique properties can be utilized to design and build: HTS magnets that produce very high fields (20 - 50 T) HTS magnets that operate at elevated temperatures (20 - 77 K) This is a significant step forward over the convention LTS magnets which generally operate at a temperature of ~4 K and with field usually limited

296

Nanocomposite Magnets: Transformational Nanostructured Permanent Magnets  

SciTech Connect (OSTI)

Broad Funding Opportunity Announcement Project: GE is using nanomaterials technology to develop advanced magnets that contain fewer rare earth materials than their predecessors. Nanomaterials technology involves manipulating matter at the atomic or molecular scale, which can represent a stumbling block for magnets because it is difficult to create a finely grained magnet at that scale. GE is developing bulk magnets with finely tuned structures using iron-based mixtures that contain 80% less rare earth materials than traditional magnets, which will reduce their overall cost. These magnets will enable further commercialization of HEVs, EVs, and wind turbine generators while enhancing U.S. competitiveness in industries that heavily utilize these alternatives to rare earth minerals.

None

2010-10-01T23:59:59.000Z

297

Tamper resistant magnetic stripes  

DOE Patents [OSTI]

This invention relates to a magnetic stripe comprising a medium in which magnetized particles are suspended and in which the encoded information is recorded by actual physical rotation or alignment of the previously magnetized particles within the flux reversals of the stripe which are 180.degree. opposed in their magnetic polarity. The magnetized particles are suspended in a medium which is solid, or physically rigid, at ambient temperatures but which at moderately elevated temperatures, such as 40.degree. C., is thinable to a viscosity permissive of rotation of the particles therein under applications of moderate external magnetic field strengths within acceptable time limits.

Naylor, Richard Brian (Albuquerque, NM); Sharp, Donald J. (Albuquerque, NM)

1999-01-01T23:59:59.000Z

298

Design science research toward designing/prototyping a repeatable model for testing location management (LM) algorithms for wireless networking.  

E-Print Network [OSTI]

?? The purpose of this research effort was to develop a model that provides repeatable Location Management (LM) testing using a network simulation tool, QualNet… (more)

Peacock, Christopher

2012-01-01T23:59:59.000Z

299

Discovery and Annotation of Repeats, Signatures, and Patterns in Genomic Sequences  

E-Print Network [OSTI]

Discovery and Annotation of Repeats, Signatures, and Patterns in Genomic Sequences Michael Robinson of genomics, proteomics, and many other "-omics," vast quantities of information are generated computationally the portions of the genome that are significant to biologic disease processes and the information

Robinson, Michael

300

Clathrin Light Chains LCA and LCB Are Similar, Polymorphic, and Share Repeated Heptad Motifs  

E-Print Network [OSTI]

Clathrin Light Chains LCA and LCB Are Similar, Polymorphic, and Share Repeated Heptad Motifs T. E. SMART, A. H. AHN, J. BRosIus* The dathrin light chains fall into two major dasses, LCA and LCB chain leg. Analysis ofrat brain and liver complementary DNA clones for LCA and LCB shows that the two

Kirchhausen, Tomas

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Size-dependent physiological responses of shore crabs to single and repeated playback of ship noise  

Science Journals Connector (OSTI)

...increase in response to ship-noise playback...predicted that the effect might be size-dependent...six (ambient and ship noise from each of...potential carry-over effects. In the repeated-exposure...and F Ladich. 2007 Effects of ship noise on the detectability...

2013-01-01T23:59:59.000Z

302

A Standardized, Cost-Effective, and Repeatable Remote Sensing Methodology to Quantify Forested  

E-Print Network [OSTI]

A Standardized, Cost-Effective, and Repeatable Remote Sensing Methodology to Quantify Forested A standardized remote sensing methodology was evaluated for its use in quantifying the forested resources.78% was within acceptable remote sensing standards for Landsat data and that forest cover types derived from 2002

Hung, I-Kuai

303

Reducing dislocations in semiconductors utilizing repeated thermal cycling during multistage epitaxial growth  

DOE Patents [OSTI]

Dislocation densities are reduced in growing semiconductors from the vapor phase by employing a technique of interrupting growth, cooling the layer so far deposited, and then repeating the process until a high quality active top layer is achieved. The method of interrupted growth, coupled with thermal cycling, permits dislocations to be trapped in the initial stages of epitaxial growth.

Fan, John C. C. (Chestnut Hill, MA); Tsaur, Bor-Yeu (Arlington, MA); Gale, Ronald P. (Bedford, MA); Davis, Frances M. (Framingham, MA)

1986-12-30T23:59:59.000Z

304

Reducing dislocations in semiconductors utilizing repeated thermal cycling during multistage epitaxial growth  

DOE Patents [OSTI]

Dislocation densities are reduced in growing semiconductors from the vapor phase by employing a technique of interrupting growth, cooling the layer so far deposited, and then repeating the process until a high quality active top layer is achieved. The method of interrupted growth, coupled with thermal cycling, permits dislocations to be trapped in the initial stages of epitaxial growth.

Fan, John C. C. (Chestnut Hill, MA); Tsaur, Bor-Yeu (Arlington, MA); Gale, Ronald P. (Bedford, MA); Davis, Frances M. (Framingham, MA)

1992-02-25T23:59:59.000Z

305

SeqEntropy: Genome-Wide Assessment of Repeats for Short Read Sequencing  

E-Print Network [OSTI]

of Information Management, Kainan University, Taoyuan, Taiwan Abstract Background: Recent studies on genome of information theory to evaluate the effect of repeats on short-read genome assembly using idealized (error analysis of human genome [1] and for rapid full genome sequencing and typing of various organisms. The 1000

Chen, Chaur-Chin

306

Clinical Characteristics of Patients Who Test Positive for Clostridium difficile by Repeat PCR  

Science Journals Connector (OSTI)

...Bacteriology Clinical Characteristics of Patients Who Test Positive for Clostridium difficile by Repeat PCR...Nevertheless, a small subset of patients do test positive within 7 days of a negative test. The aim of this study was to evaluate the clinical...

Daniel A. Green; Brie Stotler; Dana Jackman; Susan Whittier; Phyllis Della-Latta

2014-08-13T23:59:59.000Z

307

Inverted repeats in the promoter as an autoregulatory sequence for TcrX in Mycobacterium tuberculosis  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer The regulatory sequences recognized by TcrX have been identified. Black-Right-Pointing-Pointer The regulatory region comprises of inverted repeats segregated by 30 bp region. Black-Right-Pointing-Pointer The mode of binding of TcrX with regulatory sequence is unique. Black-Right-Pointing-Pointer In silico TcrX-DNA docked model binds one of the inverted repeats. Black-Right-Pointing-Pointer Both phosphorylated and unphosphorylated TcrX binds regulatory sequence in vitro. -- Abstract: TcrY, a histidine kinase, and TcrX, a response regulator, constitute a two-component system in Mycobacterium tuberculosis. tcrX, which is expressed during iron scarcity, is instrumental in the survival of iron-dependent M. tuberculosis. However, the regulator of tcrX/Y has not been fully characterized. Crosslinking studies of TcrX reveal that it can form oligomers in vitro. Electrophoretic mobility shift assays (EMSAs) show that TcrX recognizes two regions in the promoter that are comprised of inverted repeats separated by {approx}30 bp. The dimeric in silico model of TcrX predicts binding to one of these inverted repeat regions. Site-directed mutagenesis and radioactive phosphorylation indicate that D54 of TcrX is phosphorylated by H256 of TcrY. However, phosphorylated and unphosphorylated TcrX bind the regulatory sequence with equal efficiency, which was shown with an EMSA using the D54A TcrX mutant.

Bhattacharya, Monolekha [Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302 (India)] [Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302 (India); Das, Amit Kumar, E-mail: amitk@hijli.iitkgp.ernet.in [Department of Biotechnology, Indian Institute of Technology Kharagpur, Kharagpur 721302 (India)

2011-11-11T23:59:59.000Z

308

C9orf72 repeat expansions cause neurodegeneration in Drosophila through arginine-rich proteins  

Science Journals Connector (OSTI)

...Boylan K. B. Graff-Radford N. R. Rademakers R. , Expanded GGGGCC hexanucleotide...B. Petrucelli L. Dickson D. W. Rademakers R. , Association between repeat sizes and...M. van Blitterswijk M. Lee W. C. Rademakers R. Boylan K. B. Dickson D. W. Petrucelli...

Sarah Mizielinska; Sebastian Grönke; Teresa Niccoli; Charlotte E. Ridler; Emma L. Clayton; Anny Devoy; Thomas Moens; Frances E. Norona; Ione O. C. Woollacott; Julian Pietrzyk; Karen Cleverley; Andrew J. Nicoll; Stuart Pickering-Brown; Jacqueline Dols; Melissa Cabecinha; Oliver Hendrich; Pietro Fratta; Elizabeth M. C. Fisher; Linda Partridge; Adrian M. Isaacs

2014-09-05T23:59:59.000Z

309

Stream response to repeated coseismic folding, Tiptonville dome, New Madrid seismic zone  

E-Print Network [OSTI]

Sciences, University of Colorado, Boulder, CO 80309-0399, USA c Environmental Dynamics Program, University River to small flood-plain streams. Fluvial response of these streams to repeated coseismic folding has migrated across the area forming the present flood plain. This surface comprises a sandy point-bar deposit

Mueller, Karl

310

Structure and function of endogenous feline leukemia virus long terminal repeats and adjoining regions.  

Science Journals Connector (OSTI)

...long terminal repeat (LTR) of three independent loci (CFE-6, CFE-16, and CF-14) of endogenous feline leukemia virus...domestic cat genome was determined. The 3' LTR of the CFE-6 clone was also sequenced. The endogenous FeLV LTRs...

B T Berry; A K Ghosh; D V Kumar; D A Spodick; P Roy-Burman

1988-10-01T23:59:59.000Z

311

Predicting Protein Folds with Structural Repeats Using a Chain Graph Model  

E-Print Network [OSTI]

Predicting Protein Folds with Structural Repeats Using a Chain Graph Model Yan Liu yanliu, Carnegie Mellon University, Pittsburgh, PA 15213 USA Abstract Protein fold recognition is a key step to to accurately identify protein folds aris- ing from typical spatial arrangements of well-defined secondary

Xing, Eric P.

312

National High Magnetic Field Laboratory: An Introduction to Magnets...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

resistive magnet is here at the Magnet Lab: It can generate a sustained magnetic field of 35 tesla. (Were not counting here our world-record hybrid magnet or the stronger,...

313

3D analysis of magnetization distribution magnetized by capacitor-discharge impulse magnetizer  

Science Journals Connector (OSTI)

Method for calculating the magnetization distribution magnetized by capacitor-discharge impulse magnetizer is expanded to 3D, and the calculated flux distribution is compared with measured one.

Norio Takahashi

2001-01-01T23:59:59.000Z

314

Spin and orbital magnetization loops obtained using magnetic Compton scattering  

SciTech Connect (OSTI)

We present an application of magnetic Compton scattering (MCS) to decompose a total magnetization loop into spin and orbital magnetization contributions. A spin magnetization loop of SmAl{sub 2} was measured by recording the intensity of magnetic Compton scattering as a function of applied magnetic field. Comparing the spin magnetization loop with the total magnetization one measured by a vibrating sample magnetometer, the orbital magnetization loop was obtained. The data display an anti-coupled behavior between the spin and orbital magnetizations and confirm that the orbital part dominates the magnetization.

Itou, M.; Sakurai, Y. [Japan Synchrotron Radiation Research Institute, SPring-8, Hyogo 679-5198 (Japan)] [Japan Synchrotron Radiation Research Institute, SPring-8, Hyogo 679-5198 (Japan); Koizumi, A. [Graduate School of Materials Science, University of Hyogo, Hyogo 678-1297 (Japan)] [Graduate School of Materials Science, University of Hyogo, Hyogo 678-1297 (Japan)

2013-02-25T23:59:59.000Z

315

Recent lunar magnetism  

E-Print Network [OSTI]

The magnetization of young lunar samples (magnetic fields (e.g. core dynamo and long-lived impact plasma fields) have not been present within the last 1.5 Ga. To better ...

Buz, Jennifer

2011-01-01T23:59:59.000Z

316

Metallic Magnetic Hetrostructures  

E-Print Network [OSTI]

This work studied sputter deposited conventional spin valves (SV) and related structures. In SV layered structures, two ferromagnetic layers are separated by a non-magnetic spacer. Under an external magnetic field, the relative orientation...

Leung, Chi Wah

317

Plasma Magnetic Insulation  

Science Journals Connector (OSTI)

29 June 1987 research-article Plasma Magnetic Insulation B. B. Kadomtsev Theoretically the strong magnetic field of a tokamak should confine electrons and ions in a high-temperature...

1987-01-01T23:59:59.000Z

318

Magnetic assisted statistical assembly  

E-Print Network [OSTI]

The objective of this thesis is to develop a process using magnetic forces to assemble micro-components into recesses on silicon based integrated circuits. Patterned SmCo magnetic thin films at the bottom of recesses are ...

Cheng, Diana I

2008-01-01T23:59:59.000Z

319

Magnetic Nanoparticle NANOMATERIALS  

E-Print Network [OSTI]

Magnetic Nanoparticle Metrology NANOMATERIALS We are developing best practice metrology for characterization of magnetic nanoparticle systems (e.g. blocking temperature, anisotropy, property distributions, T nanoparticles and provide guidelines to the FDA to properly compare systems when approving nanoparticle systems

320

Uranium Monochalcogenides: Magnetic Form Factor and Magnetic Neutron Scattering  

Science Journals Connector (OSTI)

Fig. R.66. UY. (A) Magnetic form factor. The radial ?j i? integrals, which contribute to the neutron magnetic fo...

R. Tro?

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

LHC Magnet Program | Superconducting Magnet Division  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Magnet Program Magnet Program The Superconducting Magnet Division is building a number of dipole magnets for the Large Hadron Collider (LHC), which is now under construction at CERN in Geneva, Switzerland. Scheduled to begin operation in 2007, this machine will collide beams of protons with the unprecedented energy of 7 TeV per beam to explore the nature of matter at its most basic level (RHIC can collide beams of protons with energies of 0.25 TeV, but is mostly used to collide heavy ions with energies of 0.1 TeV per nucleon). The magnets are being built as part of the US program, recommended by the High Energy Physics Advisory Panel (HEPAP) and approved by Congress, to contribute to the construction and, later, use of that frontier machine by the US high energy physics community. Fermi National Accelerator Laboratory (FNAL) and

322

Magnetic susceptibility in QCD  

E-Print Network [OSTI]

Magnetic susceptibility in the deconfined phase of QCD is calculated in a closed form using a recent general expression for the quark gas pressure in magnetic field. Quark selfenergies are entering the result via Polyakov line factors and ensure the total paramagnetic effect, increasing with temperature. A generalized form of magnetic susceptibility in nonzero magnetic field suitable for experimental and lattice measurements is derived, showing a good agreement with available lattice data.

V. D. Orlovsky; Yu. A. Simonov

2014-05-12T23:59:59.000Z

323

Magnetism Theory Group / POSTECH Magnetism Theory Group / POSTECH  

E-Print Network [OSTI]

Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH #12;Magnetism Theory Group / POSTECH J.H . Park et al. #12;'s of FeinCsm e tal The chargeandorbitalordering geom etryin YB a C o 2 O 5 S. K. Kwon etal .Magnetism Theory

Min, Byung Il

324

RESEARCH: Argonne's Super Magnet  

Science Journals Connector (OSTI)

RESEARCH: Argonne's Super Magnet ... The world's largest superconducting magnet has been successfully built and operated by Argonne National Laboratory, at Argonne, Ill. ... The magnet will be part of Argonne's bubble chamber, also the world's largest, which should be completed on schedule this summer. ...

1969-02-03T23:59:59.000Z

325

Noble gas magnetic resonator  

DOE Patents [OSTI]

Precise measurements of a precessional rate of noble gas in a magnetic field is obtained by constraining the time averaged direction of the spins of a stimulating alkali gas to lie in a plane transverse to the magnetic field. In this way, the magnetic field of the alkali gas does not provide a net contribution to the precessional rate of the noble gas.

Walker, Thad Gilbert; Lancor, Brian Robert; Wyllie, Robert

2014-04-15T23:59:59.000Z

326

Magnetism in transition metals  

Science Journals Connector (OSTI)

By using the Hubbard tight-binding-type Hamiltonian and the cluster Bethe-lattice approximation we calculate for Fe the Curie temperature TC=2250 K and the temperature dependence of the magnetic moments and the magnetization. Moreover, we show how previous theories for itinerant magnets may be extended to include short-range spin correlations.

J. L. Morán-López; K. H. Bennemann; M. Avignon

1981-06-01T23:59:59.000Z

327

A Study in Magnetism  

Science Journals Connector (OSTI)

... this century, for the simple comprehensiveness and original beauty of his researches in electricity and magnetism; chiefly, perhaps, for his discovery of magneto-electricity—the kind of electricity that ... space surrounding a magnet was thrown into a peculiar condition by the presence of the magnetism. Two centuries previously another Englishman, as uniquely great if not greater, Dr. Gilbert ...

SILVANUS P. THOMPSON

1878-11-28T23:59:59.000Z

328

Contributions of wood ash magnetism to archaeomagnetic properties of fire pits and hearths  

Science Journals Connector (OSTI)

Magnetic studies were conducted on a variety of plant ash and ash material from fire pits to investigate the possible contribution of ash to the magnetic signature of hearths. The measurements included magnetic susceptibility, remanence acquisition to saturation (SIRM), alternating field demagnetization of SIRM and remanent coercivity (Brc). We conclude from these studies that wood ash produces fine-grained magnetic iron oxides. These oxides are probably magnetic that is concentrated enough to add to the magnetic signature of hearths and fire pits. At one site (Ellicottville, New York), the ash layer exhibits a magnetic susceptibility that is 22 times greater than a control soil sample from the site. We attribute this large enhancement to repeated burns at the site which continued to add ferromagnetic material to the fire pit. The source of the magnetic material is probably phytoferritin from plants. The variation in the intensity of magnetic anomalies over ancient hearths and fire pits may in part be caused by the magnetic contribution from ash.

Richard G. McClean; W.F. Kean

1993-01-01T23:59:59.000Z

329

Assessment of Unabated Facility Emission Potentials for Evaluating Airborne Radionuclide Monitoring Requirements at Pacific Northwest National Laboratory - 2007  

SciTech Connect (OSTI)

Assessments were performed to evaluate compliance with the airborne radionuclide emission monitoring requirements in the National Emission Standards for Hazardous Air Pollutants (NESHAP – U.S. Code of Federal Regulations, Title 40, Part 61, Subpart H) and Washington Administrative Code (WAC) 246-247: Radiation Protection – Air Emissions. In these NESHAP assessments, potential unabated offsite doses were evaluated for emission locations at buildings that are part of the consolidated laboratory campus of the Pacific Northwest National Laboratory. This report describes the inventory-based methods and provides the results for the NESHAP assessment performed in 2007.

Ballinger, Marcel Y.; Barfuss, Brad C.; Gervais, Todd L.

2008-01-01T23:59:59.000Z

330

The Werner Syndrome Helicase Is a Cofactor for HIV-1 Long Terminal Repeat Transactivation and Retroviral Replication*  

E-Print Network [OSTI]

gene, are impaired for basal and Tat-activated HIV-1 transcription. Overexpression of wild-type WRN transactivates the HIV-1 long terminal repeat (LTR) in the absence of Tat, and WRN cooperates with Tat to promoteThe Werner Syndrome Helicase Is a Cofactor for HIV-1 Long Terminal Repeat Transactivation

Monnat, Ray

331

Magnetically attached sputter targets  

DOE Patents [OSTI]

An improved method and assembly for attaching sputtering targets to cathode assemblies of sputtering systems which includes a magnetically permeable material is described. The magnetically permeable material is imbedded in a target base that is brazed, welded, or soldered to the sputter target, or is mechanically retained in the target material. Target attachment to the cathode is achieved by virtue of the permanent magnets and/or the pole pieces in the cathode assembly that create magnetic flux lines adjacent to the backing plate, which strongly attract the magnetically permeable material in the target assembly. 11 figures.

Makowiecki, D.M.; McKernan, M.A.

1994-02-15T23:59:59.000Z

332

SensorFlock: An Airborne Wireless Sensor Network of Micro-Air 1Jude Allred, 1Ahmad Bilal Hasan, 1Saroch Panichsakul, 2William Pisano,2Peter Gray, 1Jyh Huang,  

E-Print Network [OSTI]

SensorFlock: An Airborne Wireless Sensor Network of Micro-Air Vehicles 1Jude Allred, 1Ahmad Bilal.Pisano}@colorado.edu Abstract An airborne wireless sensor network (WSN) composed of bird-sized micro aerial vehicles (MAVs, and wireless communication networking between MAVs. We present experimental results from flight tests of flocks

Mohseni, Kamran

333

In-situ magnetization of NdFeB magnets for permanent magnet machines  

SciTech Connect (OSTI)

In-situ magnetizers are needed to facilitate the assembly of permanent magnet machines and to remagnetize the magnets after weakening due to a fault condition. The air-core magnetizer in association with the silicon steel lamination structure of the rotor has advantages over its iron-core counterpart. This novel method has been used to magnetize the NdFeB magnets in a 30-hp permanent magnet synchronous motor. The magnetizing capability for different magnetizer geometries was investigated for the magnetization of NdFeB material. The design, testing, and operation of this magnetizer are reported in this paper.

Chang, L.; Eastham, T.R.; Dawson, G.E. (Dept. of Electrical Engineering, Queen's Univ., Kingston, Ontario K7L 3N6 (CA))

1991-09-01T23:59:59.000Z

334

Regulation of Cell Fate Determination by Single-Repeat R3 MYB Transcription Factors in Arabidopsis  

SciTech Connect (OSTI)

MYB transcription factors regulate multiple aspects of plant growth and development. Among the large family of MYB transcription factors, single-repeat R3 MYB are characterized by their short sequence (<120 amino acids) consisting largely of the single MYB DNA-binding repeat. In the model plant Arabidopsis, R3 MYBs mediate lateral inhibition during epidermal patterning and are best characterized for their regulatory roles in trichome and root hair development. R3 MYBs act as negative regulators for trichome formation but as positive regulators for root hair development. In this article, we provide a comprehensive review on the role of R3 MYBs in the regulation of cell type specification in the model plant Arabidopsis.

Wang, Shucai [Northeast Normal University, Changchun, China] [Northeast Normal University, Changchun, China; Chen, Jay [ORNL] [ORNL

2014-01-01T23:59:59.000Z

335

Fast In Situ Airborne Measurement of Ammonia Using a Mid-Infrared Off-Axis ICOS Spectrometer  

SciTech Connect (OSTI)

A new ammonia (NH3) spectrometer was developed based on off-axis integrated cavity output spectroscopy. Its feasibility was demonstrated in airborne test flights in the troposphere on board of the Department of Energy (DOE) Gulfstream-1 (G-1) aircraft. This ammonia gas analyzer consists of an optical cell, a quantum-cascade laser, gas sampling system, electronics for control and data acquisition, and data-analysis software. The NH3 mixing ratio is determined from high-resolution NH3 absorption line shapes by tuning the laser wavelength over the sR(3,K) transition of the fundamental vibration band near 9.67 ?m. Excellent linearity is obtained in a wide range (0- 101 ppb) during calibration. The instrument is capable of collecting data at 2 Hz. Two research flights were conducted over Sunnyside, Washington. In the first test flight, the ammonia gas sensor was used to identify signatures of feedstock from local dairy farms with high vertical spatial resolution under low wind and stable atmospheric conditions. In the second flight, the NH3 spectrometer showed high sensitivity in capturing feedstock emission signals under windy and less stable conditions. Our results demonstrate that this new ammonia spectrometer is airborne feasible and that it has the capability to provide fast in situ observations of ammonia to advance our understanding of atmospheric compositions and aerosol formation.

Leen, Brian; Yu, Xiao-Ying; Gupta, Manish; Baer, Douglas S.; Hubbe, John M.; Kluzek, Celine D.; Tomlinson, Jason M.; Hubbell, Michael R.

2013-09-17T23:59:59.000Z

336

Permanent magnet steam generator  

SciTech Connect (OSTI)

This patent describes a system for magnetic heating of a fluid by motor rotation of a permanent magnet rotor adjacent an assembly of ferro-magnetic condensing plate and of copper heat absorber plate with protrusions through the ferro-magnetic condensing plate into an enclosure with the fluid therein and having fluid inlet and fluid outlet. The assembly has a first shaft and a second shaft coaxially spaced therefrom, a respective the motor connected to the outer end of each shaft, and a respective the permanent magnet rotor connected to the inner end of each shaft, adjacent a the heat absorber plate. The improvement described here comprises: the enclosure including a steel boiler with a first the ferro-magnetic condensing plate closing off a first end thereof and a second the ferro-magnetic condensing plate closing off a second end thereof, a the copper heat absorbing plate affixed on each ferro-magnetic plate; means, free of pockets, for promoting turbulent flow of the fluid with uniformly good heat transfer including the protrusion being a plurality of heat sinks, each heat sink of the plurality of heat sinks comprising an integral elongate member with an alternately large diameter and smaller diameter portions regularly spaced therealong. The elongate members through the first the ferro-magnetic condensing plate are coaxially aligned with the elongate members through the second the ferro-magnetic condensing plate.

Gerard, F.; Gerard, F.J.

1986-09-30T23:59:59.000Z

337

High Field Magnet R&D |Superconducting Magnet Division  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

High Field Magnet R&D High Field Magnet R&D The Superconducting Magnet Division is developing advanced magnet designs and magnet-related technologies for high field accelerator magnets. We are currently working on magnets for three inter-related programs: High Field Magnets for Muon Collider Papers, Presentations Common Coil Magnets Papers, Presentations Interaction Region Magnets Papers, Presentations High Temperature Superconductor (HTS) Magnets Papers, Presentations This is part of a multi-lab superconducting magnet development program for new accelerator facilities that would be part of the U.S. High Energy Physics program. These programs (@BNL, @FNAL, @LBNL) are quite complimentary to each other, so that magnet designs and technologies developed at one laboratory can be easily transferred to another. The BNL

338

Cool Magnetic Molecules  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cool Magnetic Molecules Cool Magnetic Molecules Cool Magnetic Molecules Print Wednesday, 25 May 2011 00:00 Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability to design, assemble, and probe the structure and chemistry of small molecules. An international collaboration of researchers from Spain, Scotland, and the U.S. has utilized ALS Beamline 11.3.1 (small-molecule crystallography) to characterize the design of such "molecular coolers." The work targets the synthesis of molecular cluster compounds containing many unpaired electrons ("nanomagnets") for applications involving enhanced magnetic refrigeration at very low temperatures.

339

Passive magnetic bearing system  

DOE Patents [OSTI]

An axial stabilizer for the rotor of a magnetic bearing provides external control of stiffness through switching in external inductances. External control also allows the stabilizer to become a part of a passive/active magnetic bearing system that requires no external source of power and no position sensor. Stabilizers for displacements transverse to the axis of rotation are provided that require only a single cylindrical Halbach array in its operation, and thus are especially suited for use in high rotation speed applications, such as flywheel energy storage systems. The elimination of the need of an inner cylindrical array solves the difficult mechanical problem of supplying support against centrifugal forces for the magnets of that array. Compensation is provided for the temperature variation of the strength of the magnetic fields of the permanent magnets in the levitating magnet arrays.

Post, Richard F.

2014-09-02T23:59:59.000Z

340

CHAPTER 3. STRUCTURE OF MAGNETIC FIELDS 1 Structure of Magnetic  

E-Print Network [OSTI]

CHAPTER 3. STRUCTURE OF MAGNETIC FIELDS 1 Chapter 3 Structure of Magnetic Fields Many of the most interesting plasmas are permeated by or imbedded in magnetic fields.1 As shown in Fig. 3.1, the magnetic field properties of magnetic fields in plasmas can be discussed without specifying a model for the plasma

Callen, James D.

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Pulse magnetic welder  

DOE Patents [OSTI]

A welder is described for automated closure of fuel pins by a pulsed magnetic process in which the open end of a length of cladding is positioned within a complementary tube surrounded by a pulsed magnetic welder. Seals are provided at each end of the tube, which can be evacuated or can receive tag gas for direct introduction to the cladding interior. Loading of magnetic rings and end caps is accomplished automatically in conjunction with the welding steps carried out within the tube.

Christiansen, D.W.; Brown, W.F.

1984-01-01T23:59:59.000Z

342

Brownian motion and magnetism  

Science Journals Connector (OSTI)

We present an interesting connection between Brownian motion and magnetism. We use this to determine the distribution of areas enclosed by the path of a particle diffusing on a sphere. In addition, we find a bound on the free energy of an arbitrary system of spinless bosons in a magnetic field. The work presented here is expected to shed light on polymer entanglement, depolarized light scattering, and magnetic behavior of spinless bosons.

Supurna Sinha and Joseph Samuel

1994-11-01T23:59:59.000Z

343

The Virtues of Magnetism  

Science Journals Connector (OSTI)

The Virtues of Magnetism ... In Mozart’s late opera Così fan tutte from 1790, Despina, the accomplice of thread puller Don Alfonso, instantly heals the two male characters who are pretending to be dying by using the virtues of magnetism. ... Although magnetism had been known for centuries, its scientific sources were not yet understood at the end of the 18th century, when Lorenzo da Ponte wrote the libretto. ...

Jan-Ole Joswig; Tommy Lorenz; Gotthard Seifert

2013-12-23T23:59:59.000Z

344

Towards Quantum Repeaters with Solid-State Qubits: Spin-Photon Entanglement Generation using Self-Assembled Quantum Dots  

E-Print Network [OSTI]

In this chapter we review the use of spins in optically-active InAs quantum dots as the key physical building block for constructing a quantum repeater, with a particular focus on recent results demonstrating entanglement between a quantum memory (electron spin qubit) and a flying qubit (polarization- or frequency-encoded photonic qubit). This is a first step towards demonstrating entanglement between distant quantum memories (realized with quantum dots), which in turn is a milestone in the roadmap for building a functional quantum repeater. We also place this experimental work in context by providing an overview of quantum repeaters, their potential uses, and the challenges in implementing them.

McMahon, Peter L

2015-01-01T23:59:59.000Z

345

Magnetic differential torque sensor  

SciTech Connect (OSTI)

A new torque sensor structure is presented. The basic idea is a simple torque sensor with a variable magnetic circuit excited by an axially magnetized permanent magnet ring. The circuit is constituted by iron toothed rings, whose teeth relative position changes whenever an applied torque twists the rotating shaft. A Hall probe measures the induction in an airgap where the induction is uniform. The new structure is an association of two previous ones, thus creating a differential system with the related advantages: diminution of thermal drifts, zero mean value for the signal. The new magnetic circuit is studied by calculating equivalent reluctances through energy calculations and by using electrical analogies.

Lemarquand, V.; Lemarquand, G. [Univ. de Savoie, Annecy-le-Vieux (France)] [Univ. de Savoie, Annecy-le-Vieux (France)

1995-11-01T23:59:59.000Z

346

Holographic Magnetic Phase Transition  

E-Print Network [OSTI]

We study four-dimensional interacting fermions in a strong magnetic field, using the holographic Sakai-Sugimoto model of intersecting D4 and D8 branes in the deconfined, chiral-symmetric parallel phase. We find that as the magnetic field is varied, while staying in the parallel phase, the fermions exhibit a first-order phase transition in which their magnetization jumps discontinuously. Properties of this transition are consistent with a picture in which some of the fermions jump to the lowest Landau level. Similarities to known magnetic phase transitions are discussed.

Gilad Lifschytz; Matthew Lippert

2009-06-21T23:59:59.000Z

347

Nuclear magnetic resonance imaging  

Science Journals Connector (OSTI)

Nuclear magnetic resonance imaging (NMRI) is a powerful imaging modality having a range of important applications to medicine and industry. The basic principles of NMRI are reviewed in...

Rothwell, William P

1985-01-01T23:59:59.000Z

348

Magnetic Field Viewing Cards  

Science Journals Connector (OSTI)

For some years now laminated cards containing a green magnetically sensitive film have been available from science education suppliers. When held near a magnet these cards appear dark green in regions where the field is perpendicular to the card and light green where the field is parallel to the card. The cards can be used to explore the magnetic field near a variety of magnets as well as near wire loops. In this paper we describe how to make these cards and how we have used them in our physics classrooms and labs.

Stephen Kanim; John R. Thompson

2005-01-01T23:59:59.000Z

349

Recycling Magnets | Jefferson Lab  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Recycling Magnets July 15, 2013 The cost of a nuclear or particle physics experiment can be enormous, several hundred million dollars for the Large Hadron Collider Experiments,...

350

Nuclear Magnetic Moments  

Science Journals Connector (OSTI)

This paper contains approximate formulas (Eqs. (5) and (6) for the calculation of nuclear magnetic moments from observed hyperfine structure separations.

S. Goudsmit

1933-04-15T23:59:59.000Z

351

Magnetism in hafnium dioxide  

Science Journals Connector (OSTI)

Thin films of HfO2 produced by pulsed-laser deposition on sapphire, yttria-stabilized zirconia, or silicon substrates show ferromagnetic magnetization curves with little hysteresis and extrapolated Curie temperatures far in excess of 400K. The moment does not scale with film thickness, but in terms of substrate area it is typically in the range 150–400?Bnm?2. The magnetization exhibits a remarkable anisotropy, which depends on texture and substrate orientation. Pure HfO2 powder develops a weak magnetic moment on heating in vacuum, which is eliminated on annealing in oxygen. Lattice defects are the likely source of the magnetism.

J. M. D. Coey; M. Venkatesan; P. Stamenov; C. B. Fitzgerald; L. S. Dorneles

2005-07-22T23:59:59.000Z

352

Transverse Optical Magnetism  

Science Journals Connector (OSTI)

Magnetic interactions with light are usually so small that they are ignored, even in nonlinear optics. Scientists have discovered that parametric processes can drive the interactions...

Rand, Stephen

2010-01-01T23:59:59.000Z

353

Magnetism and Electricity  

Science Journals Connector (OSTI)

... of the mariner's compass being especially good; indeed, the whole chapter on terrestrial magnetism is the best elementary account of the subject which has come under our notice. ...

1889-11-14T23:59:59.000Z

354

Magnetic Braids Anthony Yeates  

E-Print Network [OSTI]

flux function Main result Conclusion 2. Thermonuclear confinement devices. ITER (Internat'l Thermonuclear Experimental Reactor). Inside the KSTAR tokamak. Correspond to periodic magnetic braids. 4 / 22

Dundee, University of

355

Magnetism Highlights| Neutron Science | ORNL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Magnetism Magnetism SHARE Magnetism Highlights 1-5 of 5 Results ARCS maps collaborative magnetic spin behavior in iron telluride December 01, 2011 - Researchers have long thought that magnetism and superconductivity are mutually exclusive. The former typically involves localized atomic electrons. The latter requires freely propagating, itinerant electrons. Unexpected Magnetic Excitations in Doped Insulator Surprise Researchers October 01, 2011 - When doping a disordered magnetic insulator material with atoms of a nonmagnetic material, the conventional wisdom is that the magnetic interactions between the magnetic ions in the material will be weakened. Neutron Analysis Reveals Unique Atomic-Scale Behavior of "Cobalt Blue" September 01, 2011 - Neutron scattering studies of "cobalt blue," a

356

''A far more formidable task'': the 101st Airborne Division's pacification of Thua Thien Province, Republic of Vietnam, 1968-1972  

E-Print Network [OSTI]

This thesis seeks to identify, describe, and analyze the tactics used by the 101st Airborne Division in the pacification of the Republic of Vietnam's Thua Thien province from 1968 to 1972. Despite the larger calamity of the Vietnam War, the 101st...

Werkheiser, Edwin Brooks, II

2006-10-30T23:59:59.000Z

357

75Th Anniversary - The Historical Development Of The Magnetic...  

Open Energy Info (EERE)

of geophysical exploration techniques, blossomed after the advent of airborne surveys in World War II. With improvements in instrumentation, navigation, and platform compensation,...

358

Pulsed Magnetic Welding for Advanced Core and Cladding Steel  

SciTech Connect (OSTI)

To investigate a solid-state joining method, pulsed magnetic welding (PMW), for welding the advanced core and cladding steels to be used in Generation IV systems, with a specific application for fuel pin end-plug welding. As another alternative solid state welding technique, pulsed magnetic welding (PMW) has not been extensively explored on the advanced steels. The resultant weld can be free from microstructure defects (pores, non-matallic inclusions, segregation of alloying elements). More specifically, the following objectives are to be achieved, 1) To design a suitable welding apparatus fixture, and optimize welding parameters for repeatable and acceptable joining of the fuel pin end-plug. The welding will be evaluated using tensile tests for lap joint weldments and helium leak tests for the fuel pin end-plug. 2) investigate the microstructural and mechanical properties changes in PMW weldments of proposed advanced core and cladding alloys. 3) Simulate the irradiation effects on the PWM weldments using ion irradiation.

Cao, Guoping; Yang, Yong

2013-12-19T23:59:59.000Z

359

BEPC-II Magnet Project | Superconducting Magnet Division  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

BEPC-II Magnet Project BEPC-II Magnet Project Project Overview The BEPC-II magnets are Interaction Region magnets to be used as part of an upgrade to the Beijing Electron Positron Collider. Two magnets will be produced, both of which will be inserted within the solenoidal detector at one of the collision points. Since the best use of the quadrupole focusing in this case requires placing the magnet as close to the collision point as possible, these magnets will be used within the magnetic field of the detector. This constrains the materials that can be used for construction to only non-magnetic materials. It also places severe demands on the structure of the magnet and it's holding supports due to the reaction forces between the solenoid and the magnet. To create the coil pattern for the final magnet, the coils will be

360

National High Magnetic Field Laboratory: An Introduction to Magnets...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

is a magnet); opposite poles attract, like poles repel. In all magnets, the magnetic field lines run from south to north, and these fields are what produce forces on other...

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Interactions of thyroid hormone receptor with the human immunodeficiency virus type 1 (HIV-1) long terminal repeat and the HIV-1 Tat transactivator.  

Science Journals Connector (OSTI)

...long terminal repeat and the HIV- 1 Tat transactivator V Desai-Yajnik...H)- one], which inhibits Tat-mediated transactivation of HIV-1, also inhibits the functional...long terminal repeat and the HIV-1 Tat transactivator. | Thyroid hormone...

V Desai-Yajnik; E Hadzic; P Modlinger; S Malhotra; G Gechlik; H H Samuels

1995-08-01T23:59:59.000Z

362

Conjugates of Actinide Chelator-Magnetic Nanoparticles for Used Fuel Separation Technology  

SciTech Connect (OSTI)

The actinide separation method using magnetic nanoparticles (MNPs) functionalized with actinide specific chelators utilizes the separation capability of ligand and the ease of magnetic separation. This separation method eliminated the need of large quantity organic solutions used in the liquid-liquid extraction process. The MNPs could also be recycled for repeated separation, thus this separation method greatly reduces the generation of secondary waste compared to traditional liquid extraction technology. The high diffusivity of MNPs and the large surface area also facilitate high efficiency of actinide sorption by the ligands. This method could help in solving the nuclear waste remediation problem.

You Qiang; Andrzej Paszczynski; Linfeng Rao

2011-10-30T23:59:59.000Z

363

Crystal Structures of the Tetratricopeptide Repeat Domains of Kinesin Light Chains: Insight into Cargo Recognition Mechanisms  

SciTech Connect (OSTI)

Kinesin-1 transports various cargos along the axon by interacting with the cargos through its light chain subunit. Kinesin light chains (KLC) utilize its tetratricopeptide repeat (TPR) domain to interact with over 10 different cargos. Despite a high sequence identity between their TPR domains (87%), KLC1 and KLC2 isoforms exhibit differential binding properties towards some cargos. We determined the structures of human KLC1 and KLC2 tetratricopeptide repeat (TPR) domains using X-ray crystallography and investigated the different mechanisms by which KLCs interact with their cargos. Using isothermal titration calorimetry, we attributed the specific interaction between KLC1 and JNK-interacting protein 1 (JIP1) cargo to residue N343 in the fourth TRP repeat. Structurally, the N343 residue is adjacent to other asparagines and lysines, creating a positively charged polar patch within the groove of the TPR domain. Whereas, KLC2 with the corresponding residue S328 did not interact with JIP1. Based on these finding, we propose that N343 of KLC1 can form 'a carboxylate clamp' with its neighboring asparagine to interact with JIP1, similar to that of HSP70/HSP90 organizing protein-1's (HOP1) interaction with heat shock proteins. For the binding of cargos shared by KLC1 and KLC2, we propose a different site located within the groove but not involving N343. We further propose a third binding site on KLC1 which involves a stretch of polar residues along the inter-TPR loops that may form a network of hydrogen bonds to JIP3 and JIP4. Together, these results provide structural insights into possible mechanisms of interaction between KLC TPR domains and various cargo proteins.

Zhu, Haizhong; Lee, Han Youl; Tong, Yufeng; Hong, Bum-Soo; Kim, Kyung-Phil; Shen, Yang; Lim, Kyung Jik; Mackenzie, Farrell; Tempel, Wolfram; Park, Hee-Won (SGC-Toronto); (PPCS); (Toronto)

2012-10-23T23:59:59.000Z

364

Journal of Magnetism and Magnetic Materials 252 (2002) 159161 Magnetically induced alignment of FNS  

E-Print Network [OSTI]

Journal of Magnetism and Magnetic Materials 252 (2002) 159­161 Magnetically induced alignment the observation of magnetically controlled anchoring of ferro-nematic suspensions. We found that application of a weak magnetic field to a cell with the ferro-suspension induces an easy orientation axis with weak

Reznikov, Yuri

365

Journal of Magnetism and Magnetic Materials 225 (2001) 337345 Irreversible magnetization in nickel nanoparticles  

E-Print Network [OSTI]

in this magnetic nanoparticle system. # 2001 Elsevier Science B.V. All rights reserved. PACS: 75.10.Nr; 75.50.KjJournal of Magnetism and Magnetic Materials 225 (2001) 337­345 Irreversible magnetization in nickel in revised form 20 October 2000 Abstract We report magnetic studies on nickel nanoparticle films of average

Zuo, Fulin

366

EXOTIC MAGNETS FOR ACCELERATORS.  

SciTech Connect (OSTI)

Over the last few years, several novel magnet designs have been introduced to meet the requirements of new, high performance accelerators and beam lines. For example, the FAIR project at GSI requires superconducting magnets ramped at high rates ({approx} 4 T/s) in order to achieve the design intensity. Magnets for the RIA and FAIR projects and for the next generation of LHC interaction regions will need to withstand high doses of radiation. Helical magnets are required to maintain and control the polarization of high energy protons at RHIC. In other cases, novel magnets have been designed in response to limited budgets and space. For example, it is planned to use combined function superconducting magnets for the 50 GeV proton transport line at J-PARC to satisfy both budget and performance requirements. Novel coil winding methods have been developed for short, large aperture magnets such as those used in the insertion region upgrade at BEPC. This paper will highlight the novel features of these exotic magnets.

WANDERER, P.

2005-09-18T23:59:59.000Z

367

Streched Magnetic Moments  

E-Print Network [OSTI]

We note that for a system of 2 nucleons in a stretched case (J=J1+J2) the magnetic moment of the combined system is the sum of the magnetic moments of the 2 constituents. We compile other simple formulas.

Larry Zamick; Yitzhak Sharon

2012-07-12T23:59:59.000Z

368

Magnetic insulation (reply)  

Science Journals Connector (OSTI)

... DR WINTERBERG REPLIES: Contrary to Blewett's belief, magnetic insulation has not only been experimentally confirmed2 since I proposed it several years ago1, but ... generators (for example, the MJ Aurora machine). The magnetic field needed for the insulation effect in this case is generated by the strong azimuthal self-induced field of the ...

F. WINTERBERG

1974-06-28T23:59:59.000Z

369

Magnetic reconnection in space  

SciTech Connect (OSTI)

Models of magnetic reconnection in space plasmas generally consider only a segment of the magnetic field lines. The consideration of only a segment of the lines is shown to lead to paradoxical results in which reconnection can be impossible even in a magnetic field constrained to be curl free or can be at an Alfven rate even when the plasma is a perfect conductor. A model of reconnecting magnetic fields is developed which shows the smallness of the interdiffusion distance {delta}{sub d} of magnetic field lines does not limit the speed of reconnection but does provide a reconnection trigger. When the reconnection region has a natural length L{sub r}, the spatial scale of the gradient of magnetic field across the magnetic field lines must reach L{sub g} Almost-Equal-To 0.3L{sub r}/ln(L{sub r}/{delta}{sub d}) for fast reconnection to be triggered, which implies a current density j Almost-Equal-To B/{mu}{sub 0}L{sub g} that is far lower than that usually thought required for fast reconnection. The relation between magnetic reconnection in space and in toroidal laboratory plasmas is also discussed.

Boozer, Allen H. [Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027 (United States)

2012-09-15T23:59:59.000Z

370

Itinerant-electron magnetism  

Science Journals Connector (OSTI)

... A conference on Itinerant-Electron Magnetism was held in Oxford on September 13?15, 1976. It was sponsored by the ... was held in Oxford on September 13?15, 1976. It was sponsored by the Magnetism Section of the European Physical Society and the Institute of Physics. The Proceedings will ...

E. P. Wohlfarth

1976-11-18T23:59:59.000Z

371

Treatise on Terrestrial Magnetism  

Science Journals Connector (OSTI)

... and from which the writer also attempts to deduce some of the other phenomena of magnetism. There seems to us to be some ambiguity in the writer's method of ... , to arrive at laws, that we may hope to form a theory of terrestrial magnetism, than from “making an hypothesis,”and then attempting to apply it to facts. ...

J. S.

1872-01-04T23:59:59.000Z

372

Remarks on Terrestrial Magnetism  

Science Journals Connector (OSTI)

... auror are secondary currents produced by rapid, though small, changes in the earth's magnetism. In this hypothesis the earth was viewed as similar to the soft iron core ... conductors in which secondary currents would be generated whenever any change took place in the magnetism of the core.

B. STEWART

1870-01-06T23:59:59.000Z

373

A Treatise on Magnetism  

Science Journals Connector (OSTI)

... principle expressed by Newton when he said “Hypotheses non fingo.” The elementary laws of magnetism are deduced by rigorous induction from particular cases and are then applied to explain phenomena ... the mathematics employed throughout are of a simple character, so that the first principles of magnetism are thus thrown open to one who has gone no great way in mathematical reading ...

JAMES STUART

1871-12-14T23:59:59.000Z

374

Magnetism and Matter  

Science Journals Connector (OSTI)

... DR. STONER and all physicists interested in magnetism are to be congratulated on the appearance of this admirable monograph. In 1926, the ... admirable monograph. In 1926, the author published a book on the same subject, “Magnetism and Atomic Structure”. The present treatise, far from being merely a revised edition ...

H. A. K.

1935-07-20T23:59:59.000Z

375

Magnetism: Managed mess  

Science Journals Connector (OSTI)

... crime-fighting gadgetry (Fig. 1) — noted long ago that “he who controls magnetism controls the Universe”. And efforts to control ... controls the Universe”. And efforts to control magnetism continue to make progress, as Silevitch et al. ably demonstrate in this issue ( ...

Zachary Fisk

2007-08-01T23:59:59.000Z

376

Molecular and Cosmical Magnetism  

Science Journals Connector (OSTI)

... RECENT researches on magnetism tend to suggest that the negative electron may be a magneton or unitary electromagnet as ... previously considered and observed in relation to ferromagnetic bodies on the assumption that the ferro-magnetism is due to electrons in orbital motion as a whole. Wider conclusions can be ...

S. CHAPMAN

1920-11-25T23:59:59.000Z

377

Electricity and Magnetism  

Science Journals Connector (OSTI)

... and practical applications; or, speaking briefly, theory and practice. In the theoretical part, magnetism is first treated, then electricity, in the order statical electricity, electro-chemistry, and ... first treated, then electricity, in the order statical electricity, electro-chemistry, and electro-magnetism. In the practical part are comprised telegraphy and telephony, electric lighting and transmission of ...

A. GRAY

1891-11-05T23:59:59.000Z

378

Progress in Magnetism  

Science Journals Connector (OSTI)

... HISTORIES of physics and magnetism have much in common, beginning with the discovery of the lode-stone by the ... , beginning with the discovery of the lode-stone by the Greeks. Modern texts on magnetism tend to overlook the work of past philosophers and it is very refreshing to find ...

C. A. BATES

1965-11-13T23:59:59.000Z

379

Magnetism and Atomic Structure  

Science Journals Connector (OSTI)

... the information with regard to the atom has been obtained by studying spectra; chemistry, magnetism, X-ray scattering, etc., play only a subsidiary part. We must admit, ... for fresh sources of information. Much may be said in support of the opinion that magnetism will open a new way by which to approach the study of the structure of ...

P. KAPITZA

1927-06-04T23:59:59.000Z

380

Magnetism and Electricity  

Science Journals Connector (OSTI)

... WRITTEN in colloquial language, this book, which is a first-year course on magnetism and electricity, will appeal to many beginners besides the students in technical institutions, for ... have almost forgotten that their jargon is not that of the man in the street. Magnetism is first dealt with, and then the ideas of static and current electricity are ...

1922-11-11T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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 Origin of Magnetism  

Science Journals Connector (OSTI)

... A of the British Association at Hull this year a discussion on “The Origin of Magnetism,“ it was met with the criticism from eminent quarters that the time was not ... to one another nor providing an answer to the essential question of the origin of magnetism. In spite of the comparative failure of the discussion in its wider aspects, one ...

A. O. RANKINE

1922-11-04T23:59:59.000Z

382

Gravitation and Magnetism  

Science Journals Connector (OSTI)

......1 August 1950 research-article Articles Gravitation and Magnetism E. A. Milne It is shown by the methods of kinematic relativity that there should be a connection between gravitation and magnetism of the type suggested by the empirical formulae of Blackett......

E. A. Milne

1950-08-01T23:59:59.000Z

383

National High Magnetic Field Laboratory Slideshow: Seeing Magnetic...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

more about magnets You can start here with a straightforward rundown. Compasses in Magnetic Fields Experiment with the compass in this tutorial to see how it responds to...

384

Superconducting Magnet Division  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 - 6/13/06 3 - 6/13/06 Superconducting Magnet Division S&T Committee Program Review June 22-23, 2006 Conference Room A, Bldg. 725, BNL DRAFT AGENDA Thursday, June 22 0830 Executive Session to address the charge S. Aronson (25 min) 0855 Welcome S. Aronson (5 min) 0900 Superconducting Magnet Division Status & M. Harrison (45 + 15 min) Issues - mission statement, core competencies, themes, program, problems, etc. 1000 Themes - Nb3Sn, HTS, Direct wind, Accelerator integration, P. Wanderer (20 + 10 min) rapid cycling Core Competencies 1030 Superconducting Materials A. Ghosh (20 + 5 min) 1055 Break 1110 Magnetic Design R. Gupta (20 + 5 min) 1135 Magnet Construction M. Anerella (20 + 5 min) 1200 Magnet Testing G. Ganetis (20 + 5 min)

385

Cool Magnetic Molecules  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cool Magnetic Molecules Print Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability to design, assemble, and probe the structure and chemistry of small molecules. An international collaboration of researchers from Spain, Scotland, and the U.S. has utilized ALS Beamline 11.3.1 (small-molecule crystallography) to characterize the design of such "molecular coolers." The work targets the synthesis of molecular cluster compounds containing many unpaired electrons ("nanomagnets") for applications involving enhanced magnetic refrigeration at very low temperatures.

386

Cool Magnetic Molecules  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cool Magnetic Molecules Print Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability to design, assemble, and probe the structure and chemistry of small molecules. An international collaboration of researchers from Spain, Scotland, and the U.S. has utilized ALS Beamline 11.3.1 (small-molecule crystallography) to characterize the design of such "molecular coolers." The work targets the synthesis of molecular cluster compounds containing many unpaired electrons ("nanomagnets") for applications involving enhanced magnetic refrigeration at very low temperatures.

387

Cool Magnetic Molecules  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cool Magnetic Molecules Print Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability to design, assemble, and probe the structure and chemistry of small molecules. An international collaboration of researchers from Spain, Scotland, and the U.S. has utilized ALS Beamline 11.3.1 (small-molecule crystallography) to characterize the design of such "molecular coolers." The work targets the synthesis of molecular cluster compounds containing many unpaired electrons ("nanomagnets") for applications involving enhanced magnetic refrigeration at very low temperatures.

388

Cool Magnetic Molecules  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cool Magnetic Molecules Print Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability to design, assemble, and probe the structure and chemistry of small molecules. An international collaboration of researchers from Spain, Scotland, and the U.S. has utilized ALS Beamline 11.3.1 (small-molecule crystallography) to characterize the design of such "molecular coolers." The work targets the synthesis of molecular cluster compounds containing many unpaired electrons ("nanomagnets") for applications involving enhanced magnetic refrigeration at very low temperatures.

389

Magnet pole tips  

DOE Patents [OSTI]

An improved magnet more easily provides a radially increasing magnetic field, as well as reduced fringe field and requires less power for a given field intensity. The subject invention comprises a pair of spaced, opposed magnetic poles which further comprise a pair of pole roots, each having a pole tip attached to its center. The pole tips define the gap between the magnetic poles and at least a portion of each pole tip is separated from its associated pole root. The separation begins at a predetermined distance from the center of the pole root and increases with increasing radial distance while being constant with azimuth within that portion. Magnets in accordance with the subject invention have been found to be particularly advantageous for use in large isochronous cyclotrons.

Thorn, C.E.; Chasman, C.; Baltz, A.J.

1981-11-19T23:59:59.000Z

390

Cryogenic permanent magnet undulators  

Science Journals Connector (OSTI)

In order to obtain high magnetic fields in a short period undulator, superconductive undulators have been actively investigated in recent years. In this paper, however, we propose a new approach, the cryogenic permanent magnet undulator (CPMU) design, using permanent magnets at the cryogenic temperature of liquid nitrogen or higher. This cryogenic scheme can be easily adapted to currently existing in-vacuum undulators and it improves the magnetic field performance by 30%–50%. Unlike superconductive undulators operating around the liquid helium temperature, there is no big technological difficulty such as the thermal budget problem. In addition, existing field correction techniques are applicable to the CPMUs. Since there is no quench in the CPMUs, the operation of the CPMUs has the same reliability as conventional permanent magnet undulators.

Toru Hara; Takashi Tanaka; Hideo Kitamura; Teruhiko Bizen; Xavier Maréchal; Takamitsu Seike; Tsutomu Kohda; Yutaka Matsuura

2004-05-18T23:59:59.000Z

391

Cool Magnetic Molecules  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cool Magnetic Molecules Print Cool Magnetic Molecules Print Certain materials are known to heat up or cool down when they are exposed to a changing magnetic field. This is known as the magnetocaloric effect. All magnetic materials exhibit this effect, but in most cases, it is too small to be technologically useful. Recently, however, the search for special molecules with a surprisingly large capacity to keep cool has heated up, driven by environmental and cost considerations as well as by recent improvements in our ability to design, assemble, and probe the structure and chemistry of small molecules. An international collaboration of researchers from Spain, Scotland, and the U.S. has utilized ALS Beamline 11.3.1 (small-molecule crystallography) to characterize the design of such "molecular coolers." The work targets the synthesis of molecular cluster compounds containing many unpaired electrons ("nanomagnets") for applications involving enhanced magnetic refrigeration at very low temperatures.

392

Sources and Magnetic Charge  

Science Journals Connector (OSTI)

A beginning is made on a phenomenological reconstruction of the theory of magnetic charge. The concept is introduced by reference to a new kind of photon source. It is shown that photon exchange between different source types is relativistically invariant. The space-time generalization of this coupling involves an arbitrary vector. The only way to remove a corresponding arbitrariness of physical predictions is to recognize the localization of charge and impose a charge quantization condition. The consideration of particles that carry both kinds of charge loosens the charge restrictions. The great strength of magnetic attraction indicated by g24?=4(137) suggests that ordinary matter is a magnetically neutral composite of magnetically charged particles that carry fractional electric charge. There is a brief discussion of such a magnetic model of strongly interacting particles, which makes contact with empirical classification schemes. Additional remarks on notation, and on the general nature of the source description, are appended.

Julian Schwinger

1968-09-25T23:59:59.000Z

393

DOE-HDBK-3010-94; Airborne Release Fractions/Rates and Respirable Fractions for Nonreactor Nuclear Facilities, Volume II  

Broader source: Energy.gov (indexed) [DOE]

3010-94 3010-94 December 1994 DOE HANDBOOK AIRBORNE RELEASE FRACTIONS/RATES AND RESPIRABLE FRACTIONS FOR NONREACTOR NUCLEAR FACILITIES Volume II - Appendices U.S. Department of Energy AREA SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. This document has been reproduced directly from the best available copy. Available to DOE and DOE contractors from the Office of Scientific and Technical Information, P.O. Box 62, Oak Ridge, TN 37831; (615) 576-8401. Available to the public from the U.S. Department of Commerce, Technology Administration, National Technical Information Service, Springfield, VA 22161; (703) 487-4650. Order No. DE95004711 DOE-HDBK-3010-94 Page i VOLUME II: APPENDICES APPENDIX A

394

Proposed beryllium metal bounding airborne release fractions (ARFs)/rates (ARRs) and respirable fractions (RFs) for DOE facility accidents analyses  

Science Journals Connector (OSTI)

Beryllium metal has special properties for nuclear applications and is used widely within the Department of Energy (DOE) complex. Beryllium is toxic and has the potential to cause health effects (sensitization and chronic beryllium disease) to workers. Due to the type of processing involving large quantities of beryllium metal and powders and potential for significant airborne release under accident conditions, a comprehensive hazard analysis is required by DOE in a safety analysis document that evaluates potential accidents that can cause beryllium releases to the workplace and public or to the environment. The goal of the safety analysis is to identify and evaluate hazards so that appropriate controls or safeguards can be specified to protect the workers and public from potential accidents. A hazard assessment is also required to comply with 10 CFR Part 850, Chronic Beryllium Disease Prevention Program (1999) to protect the workers. DOE safety analyses include a quantitative estimate of releases and downwind concentrations for purposes of hazard classification and determination of the need for additional hazards analysis, accident analysis, and risk assessments. There are no complex-wide accepted Airborne Release Fractions (ARFs) and Respirable Fractions (RFs) that can be used to evaluate the potential downwind consequences of releases of beryllium under various accident conditions (e.g., spill, fire, stress, explosion, etc.). The purpose is to recommend DOE complex-wide \\{ARFs\\} and \\{RFs\\} that can be used to evaluate the potential downwind consequences of accidents. This paper proposes various values for \\{ARFs\\} and \\{RFs\\} that are based on review of the published information and data on the oxidation and ignition behavior of beryllium metal encased in a thin coat of non-porous, adherent oxide (“blue oxide”); the typical form of this material found in DOE facilities. Information is also presented as a function of the morphology of the metal (i.e., large, coherent, pieces; turnings/swarfs; chips/powder; and dust) because the surface to volume ratio is an important factor in evaluating both the amount of beryllium released and the potential for ignition of the metal that may increase the amount of release significantly. Guidance is also provided for the use of the DOE-HDBK-3010-94, Airborne Release Fractions/Rates and Respirable Fraction for Nonreactor Nuclear Facilities, values for oxide releases that result in a more liberal, allowable limiting airborne concentration for determining consequences and hazard classification of the facility. Detailed explanations of the proposed ARF/RF values for the various beryllium metal forms (large coherent pieces, chips/powder, turning/swarfs from processing, and dust) and other aspects of beryllium are provided in a report by Mishima et al. (April 2005). A short version of this report and a summary of the ARF/RF values are presented here.

Jofu Mishima; Terry L. Foppe; J.C. Laul

2008-01-01T23:59:59.000Z

395

HVAC filtration for controlling infectious airborne disease transmission in indoor environments: Predicting risk reductions and operational costs  

Science Journals Connector (OSTI)

Abstract This work describes and applies a methodology for estimating the impact of recirculating heating, ventilating, and air-conditioning (HVAC) particle filters on the control of size-resolved infectious aerosols in indoor environments using a modified version of the Wells-Riley model for predicting risks of infectious disease transmission. Estimates of risk reductions and associated operational costs of both HVAC filtration and equivalent outdoor air ventilation are modeled and compared using a case study of airborne transmission of influenza in a hypothetical office space. Overall, recirculating HVAC filtration was predicted to achieve risk reductions at lower costs of operation than equivalent levels of outdoor air ventilation, particularly for MERV 13–16 filters. Medium efficiency filtration products (MERV 7–11) are also inexpensive to operate but appear less effective in reducing infectious disease risks.

Parham Azimi; Brent Stephens

2013-01-01T23:59:59.000Z

396

Alternate airborne release fraction determination for hazardous waste management storage repository hazard categorization at the Lawrence Livermore National Laboratory  

SciTech Connect (OSTI)

Hazardous Waste Management (HWM) facilities are used in the handling and processing of solid and liquid radioactive, hazardous, mixed, and medical wastes generated at Lawrence Livermore National Laboratory (LLNL). Waste may be treated or stored in one of the HWM facility units prior to shipment off site for treatment or disposal. Planned facilities such as the Decontamination and Waste Treatment Facility (DWTF) and the Building 280 Container Storage Unit are expected to handle similar waste streams. A hazard classification was preformed in each facility safety analysis report (SAR) according to the DOE Standard 1027-92 `Hazard Categorization and Accident Analysis Techniques for Compliance with DOE Order 5480.23, Nuclear Safety Analysis Reports.` The general methodology practiced by HWM to determine alternate airborne release fractions (ARFs) in those SARs was based upon a beyond evaluation basis earthquake accident scenario characterized by the release of the largest amount of respirable, airborne radioactive material. The alternate ARF was calculated using a three-factor formula consisting of the fraction of failed waste containers, fraction of material released from failed waste containers,and the fraction of material entrained to the environment. Recently, in deliberation with DOE-Oakland representatives, HWM decided to modify this methodology. In place of the current detailed analysis, a more straightforward process was proposed based upon material form, credible accident environments, and empirical data. This paper will discuss the methodology and derivation of ARFs specific to HWM treatment and storage facilities that are alternative to those presented in DOE-STD-1027-92.

Brumburgh, G.P.

1998-05-01T23:59:59.000Z

397

SP - 19 Magnetic Field Safety  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

19 Page 1 Revision 02 August 6, 2007 NATIONAL HIGH MAGNETIC FIELD LABORATORY NHMFL FLORIDA STATE UNIVERSITY SAFETY PROCEDURE SP-19 MAGNETIC FIELD SAFETY ...

398

Human immunodeficiency virus long terminal repeat responds to T-cell activation signals  

SciTech Connect (OSTI)

Human immunodeficiency virus (HIV), the causative agent of AIDS, infects and kills lymphoid cells bearing the CD4 antigen. In an infected cell, a number of cellular as well as HIV-encoded gene products determine the levels of viral gene expression and HIV replication. Efficient HIV replication occurs in activated T cells. Utilizing transient expression assays, the authors show that gene expression directed by the HIV long terminal repeat (LTR) increases in response to T-cell activation signals. The effects of T-cell activation and of the HIV-encoded trans-activator (TAT) are multiplicative. Analysis of mutations and deletions in the HIV LTR reveals that the region responding to T-cell activation signals is located at positions -105 to -80. These sequences are composed of two direct repeats, which are homologous to the core transcriptional enhancer elements in the simian virus 40 genome. The studies reveal that these elements function as the HIV enhancer. By acting directly on the HIV LTR, T-cell activation may play an important role in HIV gene expression and in the activation of latent HIV.

Tong-Starksen, S.E.; Luciw, P.A.; Peterlin, B.M.

1987-10-01T23:59:59.000Z

399

Tailoring Magnetic Properties in Bulk Nanostructured Solids  

E-Print Network [OSTI]

permanent magnets). Under specific temperature and applied magnetic field conditions, exchange coupling

Morales, Jason R.

2011-01-01T23:59:59.000Z

400

Magnetically catalyzed fusion  

Science Journals Connector (OSTI)

We calculate the reaction cross sections for the fusion of hydrogen and deuterium in strong magnetic fields as are believed to exist in the atmospheres of neutron stars. We find that in the presence of a strong magnetic field (B?1012 G), the reaction rates are many orders of magnitude higher than in the unmagnetized case. The fusion of both protons and deuterons is important over a neutron star’s lifetime for ultrastrong magnetic fields (B?1016 G). The enhancement may have dramatic effects on thermonuclear runaways and bursts on the surfaces of neutron stars. © 1996 The American Physical Society.

Jeremy S. Heyl and Lars Hernquist

1996-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Mesoscopic Spin Magnetism  

Science Journals Connector (OSTI)

We investigate the spin magnetism of mesoscopic metallic grains. In the average response of an ensemble of grains there are corrections to macroscopic behavior due to both spectral fluctuations and electron-electron interactions. These corrections are a nonlinear function of the magnetic field. Their temperature dependence is calculated numerically and analytically. An experiment is proposed to measure the unknown interaction coupling constant in the Cooper channel. For a single sample the magnetization is found to fluctuate reproducibly about the mean. These fluctuations directly probe the energy level statistics.

H. Mathur; M. Gökçeda?; A. Douglas Stone

1995-03-06T23:59:59.000Z

402

Reversed magnetization A NOVEL DEVICE FOR CONTINUOUS FLOW MAGNETIC TRAPPING  

E-Print Network [OSTI]

1. 3 µm5 µm Reversed magnetization A NOVEL DEVICE FOR CONTINUOUS FLOW MAGNETIC TRAPPING AND SORTING Martin d'hères, France ABSTRACT The manipulation of magnetically labeled bio-objects of nano or micrometer sizes is now realizable by combining the magnetic forces with microfluidics. This paper reports

Paris-Sud XI, Université de

403

Force and Stiffness of Passive Magnetic Bearings Using Permanent Magnets.  

E-Print Network [OSTI]

1 Force and Stiffness of Passive Magnetic Bearings Using Permanent Magnets. Part 2 : Radial Magnetization R. Ravaud, G. Lemarquand, V. Lemarquand Abstract This paper deals with the calculation of the force and the stiffness between two ring permanent magnets whose polarization is radial

Boyer, Edmond

404

MagneticsLab  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Magnetics Laboratory Magnetics Laboratory Manufacturing Technologies The Magnetics Lab provides customers with design, prototyping, packaging solutions and production of unique magnetic and resistive components from millivolts to extremely high voltage (250KV) components. Capabilities * Design review of specification and requirements * Design and develop from sketches, verbal ideas, or circuit design parameters * Coil windings of any size or configuration * Coil diameter from 0.1 to 24 inches * Low temperature and high temperature coils * Precision resistors from 0.1 ohms to 2 megaohms (non-inductive) * Special high voltage transformers (2KV to 250KV) and high voltage loads (38K ohms to 100K ohms and 2KV to 250KV) Resources * Computer Aided Mechanical Design (Solid Works 3D CAD System) for mechanical

405

AFRD - Superconducting Magnets  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Superconducting Magnets Superconducting Magnets Home Organization Diversity Safety Links Gallery/History Updated July 2008 Ever-stronger magnets (which must be cost-effective as well) are a key to building tomorrow's high-energy accelerators and upgrading today's. Our role— not only a leading R&D group but also the administrators of the multi-institutional National Conductor Development Program— to create both evolutionary improvements and paradigm shifts in the application of accelerator magnets, providing innovative technology that enables new science. Improvements in conductor, innovative structures to solve the challenges of high fields and brittle superconductors, and integration of computerized design and analysis tools are key. The performance requirements of modern accelerators continue to press the

406

Fundamentals of Magnetic Recording  

Science Journals Connector (OSTI)

In recent years magnetic recording has become a preferred medium for storing information such as printed language, mathematics, sound, and pictures. It is compact, economical, easily updated, and instantly ret...

Marvin Camras

1988-01-01T23:59:59.000Z

407

Modular tokamak magnetic system  

DOE Patents [OSTI]

A modular tokamak system comprised of a plurality of interlocking moldules. Each module is comprised of a vacuum vessel section, a toroidal field coil, moldular saddle coils which generate a poloidal magnetic field and ohmic heating coils.

Yang, Tien-Fang (Wayland, MA)

1988-01-01T23:59:59.000Z

408

Magnetic gripper device  

DOE Patents [OSTI]

A climbing apparatus is provided for climbing ferromagnetic surfaces, such as storage tanks and steel frame structures. A magnet assembly is rotatably mounted in a frame assembly. The frame assembly provides a pair of cam surfaces having different dimensions so that, when the frame is rotated, the cam surfaces contact the ferromagnetic surface to separate the magnet assembly from the surface. The different cam dimensions enable one side of the magnet at a time to be detached from the surface to reduce the effort needed to disengage the climbing apparatus. The cam surface also provides for smoothly attaching the apparatus. A hardened dowel pin is also attached to the frame and the pointed end of the dowel engages the surface when the magnet is attached to the surface to prevent downward sliding movement of the assembly under the weight of the user.

Meyer, R.E.

1993-03-09T23:59:59.000Z

409

Magnetic gripper device  

DOE Patents [OSTI]

A climbing apparatus is provided for climbing ferromagnetic surfaces, such as storage tanks and steel frame structures. A magnet assembly is rotatably mounted in a frame assembly. The frame assembly provides a pair of cam surfaces having different dimensions so that, when the frame is rotated, the cam surfaces contact the ferromagnetic surface to separate the magnet assembly from the surface. The different cam dimensions enable one side of the magnet at a time to be detached from the surface to reduce the effort needed to disengage the climbing apparatus. The cam surface also provides for smoothly attaching the apparatus. A hardened dowel pin is also attached to the frame and the pointed end of the dowel engages the surface when the magnet is attached to the surface to prevent downward sliding movement of the assembly under the weight of the user.

Meyer, Ross E. (Los Alamos, NM)

1993-01-01T23:59:59.000Z

410

NEW MAGNETIC MATERIALS  

Science Journals Connector (OSTI)

New, sophisticated magnetic materials can be found as essential components in computers, sensors, and actuators, and in a variety of telecommunications devices ranging from telephones to satellites. Some of th...

STANOJA STOIMENOV

2006-01-01T23:59:59.000Z

411

Nonlinear magnetization of graphene  

Science Journals Connector (OSTI)

We compute the magnetization of graphene in a magnetic field, taking into account for generality the possibility of a mass gap. We concentrate on the physical regime where quantum oscillations are not observed due to the effect of the temperature or disorder and show that the magnetization exhibits nonlinear behavior as a function of the applied field, reflecting the strong nonanalyticity of the two-dimensional effective action of Dirac electrons. The necessary values of the magnetic field to observe this nonlinearity vary from a few teslas for very clean suspended samples to 20–30 T for good samples on substrate. In the light of these calculations, we discuss the effects of disorder and interactions as well as the experimental conditions under which the predictions can be observed.

Sergey Slizovskiy and Joseph J. Betouras

2012-09-24T23:59:59.000Z

412

USe: Magnetic Neutron Scattering  

Science Journals Connector (OSTI)

This document is part of subvolume B6b?‘Actinide Monochalcogenides’ of Volume 27 ‘Magnetic properties of non-metallic inorganic compounds based on transition elements’ of Landolt-Börnstein - Group III ‘Condens...

R. Tro?

2009-01-01T23:59:59.000Z

413

Intrinsic Magnetic Fields  

Science Journals Connector (OSTI)

Emission theory of electromagnetic fields.—(1) Intrinsic magnetic field. The intrinsic magnetic field of a point charge is defined as that portion of the field which cannot be annihilated by the Lorentz transformation. It is shown that the intrinsic field can be represented by lines of force carried by the same moving elements as carry the electric field, and a potential is given for it. (2) Frequency of emission of moving elements. A relation between the frequency of emission of moving elements and the number of lines of force to a tube is deduced on the assumption that the latter number is the same for the electric and magnetic fields and that each moving element marks the intersection of an electric and magnetic line of force.

Leigh Page

1923-08-01T23:59:59.000Z

414

MOON: Magnetism and interior  

Science Journals Connector (OSTI)

The internal structure and magnetic field of the Moon are two basic properties of our nearest planetary body that may or may not be related. For the Earth, these properties are closely related because the geom...

Lon L. Hood

1997-01-01T23:59:59.000Z

415

Some Experiments in Magnetism  

Science Journals Connector (OSTI)

1 January 1904 research-article Some Experiments in Magnetism T. C. Porter The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Proceedings of the Royal Society of London. www.jstor.org

1904-01-01T23:59:59.000Z

416

Saturn's mysterious magnetism  

Science Journals Connector (OSTI)

... 2014 Royal Astronomical Society February 2014 research-article Features Saturn's mysterious magnetism D J Southwood D J Southwood, Blackett Laboratory, Imperial College, London, UK. In his 2013 RAS Presidential Address, David......

D J Southwood

2014-02-01T23:59:59.000Z

417

Magnetism and Recalescence  

Science Journals Connector (OSTI)

1 January 1890 research-article Magnetism and Recalescence J. Hopkinson The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Proceedings of the Royal Society of London. www.jstor.org

1890-01-01T23:59:59.000Z

418

Geometrically frustrated quantum magnets  

E-Print Network [OSTI]

(cont.) more general lessons on frustrated quantum magnetism. At the end, we demonstrate some new mathematical tools on two other frustrated two-dimensional systems, and summarize our conclusions, with an outlook to remaining ...

Nikolić , Predrag, 1974-

2004-01-01T23:59:59.000Z

419

Large Superconducting Magnet Systems  

E-Print Network [OSTI]

The increase of energy in accelerators over the past decades has led to the design of superconducting magnets for both accelerators and the associated detectors. The use of Nb?Ti superconducting materials allows an increase in the dipole field by up to 10 T compared with the maximum field of 2 T in a conventional magnet. The field bending of the particles in the detectors and generated by the magnets can also be increased. New materials, such as Nb3Sn and high temperature superconductor (HTS) conductors, can open the way to higher fields, in the range 13–20 T. The latest generations of fusion machines producing hot plasma also use large superconducting magnet systems.

Védrine, P

2014-01-01T23:59:59.000Z

420

Turbulent Magnetic Reconnection Near a  

E-Print Network [OSTI]

Turbulent Magnetic Reconnection Near a 3D Magnetic Null C. S. Ng Space Science Center Institute for the Study of Earth, Oceans, and Space University of New Hampshire, Durham, NH 03824 #12;Turbulent Magnetic Reconnection Near a 3D Magnetic Null C. S. Ng, chung-sang.ng@unh.edu, Space Science Center, Institute

Ng, Chung-Sang

Note: This page contains sample records for the topic "repeated airborne magnetic" 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.


421

Magnetism and the Maxwellian Theory  

Science Journals Connector (OSTI)

... 31 that he is satisfied with my reply to his query concerning the place of magnetism in fundamental electrical theory. Of course there can be no question of “annihilating magnetic ... and properties of permanent magnets; but, as regards the understanding of fundamental physical phenomena, magnetism appears to have played a part similar to that of money in economics—a useful ...

C. V. DRYSDALE

1939-02-18T23:59:59.000Z

422

Rock Magnetism To-Day  

Science Journals Connector (OSTI)

... ROCK magnetism is that branch of geophysics that deals with the origin of magnetization in rocks and ... that deals with the origin of magnetization in rocks and its stability. Workers in rock magnetism are also interested in the phenomenon of self-reversal, that is, a rock acquiring ...

SUBIR K. BANERJEE

1966-02-12T23:59:59.000Z

423

Reverse Thermo-Remanent Magnetism  

Science Journals Connector (OSTI)

... In this communication a particular case of thermo-remanent magnetism, the direction of which is opposite to that of the applied magnetic field under ... to room temperature in a magnetic field of 0-5 Oersteds, it takes a remanent magnetism of 0-12 e.m.u./c.c. in intensity, and the direction ...

TAKESI NAGATA

1952-04-26T23:59:59.000Z

424

Magnetic fluorescent lamp  

DOE Patents [OSTI]

The radiant emission of a mercury-argon discharge in a fluorescent lamp assembly is enhanced by providing means for establishing a magnetic field with lines of force along the path of electron flow through the bulb of the lamp assembly, to provide Zeeman splitting of the ultraviolet spectral line. Optimum results are obtained when the magnetic field strength causes a Zeeman splitting of approximately 1.7 times the thermal line width.

Berman, S.M.; Richardson R.W.

1983-12-29T23:59:59.000Z

425

Magnetism of nickel  

Science Journals Connector (OSTI)

A previously developed theory of the magnetism of iron, based upon notion of a randomized exchange field, has now been applied to calculate the properties of nickel. We obtained a Curie temperature of 1200 K, about twice the observed value. The magnetization curve, the paramagnetic susceptibility (a Curie-Weiss law), and the distribution of spin lengths are also calculated. Both similarities and differences from the results of the iron calculations are noted.

J. Hubbard

1981-06-01T23:59:59.000Z

426

Magnetic coupling device  

DOE Patents [OSTI]

A quick connect/disconnect coupling apparatus is provided in which a base member is engaged by a locking housing through a series of interengagement pins. The pins maintain the shaft in a locked position. Upon exposure to an appropriately positioned magnetic field, pins are removed a sufficient distance such that the shaft may be withdrawn from the locking housing. The ability to lock and unlock the connector assembly requires no additional tools or parts apart from a magnetic key.

Nance, Thomas A. (Aiken, SC)

2009-08-18T23:59:59.000Z

427

Permanent Magnet Ecr Plasma Source With Magnetic Field Optimization  

DOE Patents [OSTI]

In a plasma-producing device, an optimized magnet field for electron cyclotron resonance plasma generation is provided by a shaped pole piece. The shaped pole piece adjusts spacing between the magnet and the resonance zone, creates a convex or concave resonance zone, and decreases stray fields between the resonance zone and the workpiece. For a cylindrical permanent magnet, the pole piece includes a disk adjacent the magnet together with an annular cylindrical sidewall structure axially aligned with the magnet and extending from the base around the permanent magnet. The pole piece directs magnetic field lines into the resonance zone, moving the resonance zone further from the face of the magnet. Additional permanent magnets or magnet arrays may be utilized to control field contours on a local scale. Rather than a permeable material, the sidewall structure may be composed of an annular cylindrical magnetic material having a polarity opposite that of the permanent magnet, creating convex regions in the resonance zone. An annular disk-shaped recurve section at the end of the sidewall structure forms magnetic mirrors keeping the plasma off the pole piece. A recurve section composed of magnetic material having a radial polarity forms convex regions and/or magnetic mirrors within the resonance zone.

Doughty, Frank C. (Plano, TX); Spencer, John E. (Plano, TX)

2000-12-19T23:59:59.000Z

428

Piping inspection instrument carriage with precise and repeatable position control and location determination  

DOE Patents [OSTI]

An instrument carriage for inspection of piping comprises front and rear leg assemblies for engaging the interior of the piping and supporting and centering the carriage therein, and an instrumentation arm carried by a shaft system running from the front to rear leg assemblies. The shaft system has a screw shaft for moving the arm axially and a spline gear for moving the arm azimuthally. The arm has a pair of air cylinders that raise and lower a plate in the radial direction. On the plate are probes including an eddy current probe and an ultrasonic testing probe. The ultrasonic testing probe is capable of spinning 360.degree. about its axis. The instrument carriage uses servo motors and pressurized air cylinders for precise actuation of instrument components and precise, repeatable actuation of position control mechanisms.

Hapstack, Mark (North Augusta, SC); Talarek, Ted R. (Augusta, GA); Zollinger, W. Thor (Martinez, GA); Heckendorn, II, Frank M. (Alken, SC); Park, Larry R. (North Augusta, SC)

1994-01-01T23:59:59.000Z

429

Piping inspection instrument carriage with precise and repeatable position control and location determination  

DOE Patents [OSTI]

An instrument carriage for inspection of piping comprises front and rear leg assemblies for engaging the interior of the piping and supporting and centering the carriage therein, and an instrumentation arm carried by a shaft system running from the front to rear leg assemblies. The shaft system has a screw shaft for moving the arm axially and a spline gear for moving the arm azimuthally. The arm has a pair of air cylinders that raise and lower a plate in the radial direction. On the plate are probes including an eddy current probe and an ultrasonic testing probe. The ultrasonic testing probe is capable of spinning 360[degree] about its axis. The instrument carriage uses servo motors and pressurized air cylinders for precise actuation of instrument components and precise, repeatable actuation of position control mechanisms. 8 figures.

Hapstack, M.; Talarek, T.R.; Zollinger, W.T.; Heckendorn, F.M. II; Park, L.R.

1994-02-15T23:59:59.000Z

430

Magnetism of nanosized metallic particles  

Science Journals Connector (OSTI)

The magnetism of a small cluster of magnetic atoms at finite temperatures is numerically investigated. The evolution of the system towards thermal equilibrium is studied, and the possibility of occurrence of vortexlike excitations in the arrangement of the magnetic moments within the cluster is pointed out. The magnetization curve as a function of temperature, of a small magnetic particle, suggests that magnetic clusters in granular metals are not saturated even at room temperature. The relevance of the present results to the understanding of the magnetic behavior of granular metals is discussed.

P. Vargas; J. d’Albuquerque e Castro; D. Altbir

1999-09-01T23:59:59.000Z

431

Konus-Wind Observations of the New Soft Gamma-Ray Repeater SGR 0501+4516  

Science Journals Connector (OSTI)

In 2008 August, the new soft gamma-ray repeater SGR 0501+4516 was discovered by Swift. The source was soon confirmed by several groups in space- and ground-based multi-wavelength observations. In this Letter, we report the analysis of five short bursts from the recently discovered soft gamma-ray repeater (SGR), detected with the Konus-Wind gamma-ray burst spectrometer. Properties of the time histories of the observed events, as well as results of multichannel spectral analysis, both in the 20-300 keV energy range, show, that the source exhibits itself as a typical SGR. The bursts durations are 0.75 s and their spectra above 20 keV can be fitted by an optically thin thermal bremsstrahlung (OTTB) model with kT OTTB of 20-40 keV. The spectral evolution is observed, which resembles the SGR 1627–41 bursts, where a strong hardness-intensity correlation was noticed in the earlier Konus-Wind observations. The peak energy fluxes of all five events are comparable to the highest of those for known SGRs, so a less distant source is implied, consistent with the determined Galactic anticenter direction. Supposing the young supernova remnant HB9 (at the distance of 1.5 kpc) as a natal environment of the source, the peak luminosities of the bursts are estimated to be (2-5)?1040 erg s–1. The values of the total energy release, given the same assumptions, amount to (0.6-6)?1039 erg. These estimations of both parameters are typical for short SGR bursts.

R. L. Aptekar; T. L. Cline; D. D. Frederiks; S. V. Golenetskii; E. P. Mazets; V. D. Pal'shin

2009-01-01T23:59:59.000Z

432

Behavior of Repeating Earthquake Sequences in Central California and the Implications for Subsurface Fault Creep  

SciTech Connect (OSTI)

Repeating earthquakes (REs) are sequences of events that have nearly identical waveforms and are interpreted to represent fault asperities driven to failure by loading from aseismic creep on the surrounding fault surface at depth. We investigate the occurrence of these REs along faults in central California to determine which faults exhibit creep and the spatio-temporal distribution of this creep. At the juncture of the San Andreas and southern Calaveras-Paicines faults, both faults as well as a smaller secondary fault, the Quien Sabe fault, are observed to produce REs over the observation period of March 1984-May 2005. REs in this area reflect a heterogeneous creep distribution along the fault plane with significant variations in time. Cumulative slip over the observation period at individual sequence locations is determined to range from 5.5-58.2 cm on the San Andreas fault, 4.8-14.1 cm on the southern Calaveras-Paicines fault, and 4.9-24.8 cm on the Quien Sabe fault. Creep at depth appears to mimic the behaviors seen of creep on the surface in that evidence of steady slip, triggered slip, and episodic slip phenomena are also observed in the RE sequences. For comparison, we investigate the occurrence of REs west of the San Andreas fault within the southern Coast Range. Events within these RE sequences only occurred minutes to weeks apart from each other and then did not repeat again over the observation period, suggesting that REs in this area are not produced by steady aseismic creep of the surrounding fault surface.

Templeton, D C; Nadeau, R; Burgmann, R

2007-07-09T23:59:59.000Z

433

RHIC Project | Superconducting Magnet Division  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

RHIC Project RHIC Project The Superconducting Magnet Division supplied 1740 magnetic elements, in 888 cryostats, for the RHIC facility at BNL. Of these, 780 magnetic elements were manufactured by Northrop-Grumman (Bethpage, NY) and 360 were made by Everson Electric (Bethlehem, PA). The magnets made in industry used designs developed at BNL. The first cooldown of the magnets for the RHIC engineering run was in 1999. Since then, the magnets have operated very reliably. arc dipole coil and yoke Arc dipole coil and yoke, with magnetic flux lines The magnets provide modest field (3.45 Teslas in the arc dipoles) in a cost-effective design. Key features in the principal bending and focusing magnets include the use of NbTi Rutherford cable, a single-layer coil, and cold iron as both yoke and collar. The magnets operate in forced-flow

434

Ground Magnetics | Open Energy Information  

Open Energy Info (EERE)

Ground Magnetics Ground Magnetics Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Ground Magnetics Details Activities (15) Areas (12) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Magnetic Techniques Parent Exploration Technique: Magnetic Techniques Information Provided by Technique Lithology: Presence of magnetic minerals such as magnetite. Stratigraphic/Structural: Mapping of basement structures, horst blocks, fault systems, fracture zones, dykes and intrusions. Hydrological: The circulation of hydrothermal fluid may impact the magnetic susceptibility of rocks. Thermal: Rocks lose their magnetic properties at the Curie temperature (580° C for magnetite) [1] and, upon cooling, remagnetize in the present magnetic field orientation. The Curie point depth in the subsurface may be determined in a magnetic survey to provide information about hydrothermal activity in a region.

435

MAGNETIC NEUTRON SCATTERING  

SciTech Connect (OSTI)

Much of our understanding of the atomic-scale magnetic structure and the dynamical properties of solids and liquids was gained from neutron-scattering studies. Elastic and inelastic neutron spectroscopy provided physicists with an unprecedented, detailed access to spin structures, magnetic-excitation spectra, soft-modes and critical dynamics at magnetic-phase transitions, which is unrivaled by other experimental techniques. Because the neutron has no electric charge, it is an ideal weakly interacting and highly penetrating probe of matter's inner structure and dynamics. Unlike techniques using photon electric fields or charged particles (e.g., electrons, muons) that significantly modify the local electronic environment, neutron spectroscopy allows determination of a material's intrinsic, unperturbed physical properties. The method is not sensitive to extraneous charges, electric fields, and the imperfection of surface layers. Because the neutron is a highly penetrating and non-destructive probe, neutron spectroscopy can probe the microscopic properties of bulk materials (not just their surface layers) and study samples embedded in complex environments, such as cryostats, magnets, and pressure cells, which are essential for understanding the physical origins of magnetic phenomena. Neutron scattering is arguably the most powerful and versatile experimental tool for studying the microscopic properties of the magnetic materials. The magnitude of the cross-section of the neutron magnetic scattering is similar to the cross-section of nuclear scattering by short-range nuclear forces, and is large enough to provide measurable scattering by the ordered magnetic structures and electron spin fluctuations. In the half-a-century or so that has passed since neutron beams with sufficient intensity for scattering applications became available with the advent of the nuclear reactors, they have became indispensable tools for studying a variety of important areas of modern science, ranging from large-scale structures and dynamics of polymers and biological systems, to electronic properties of today's technological materials. Neutron scattering developed into a vast field, encompassing many different experimental techniques aimed at exploring different aspects of matter's atomic structure and dynamics. Modern magnetic neutron scattering includes several specialized techniques designed for specific studies and/or particular classes of materials. Among these are magnetic reflectometry aimed at investigating surfaces, interfaces, and multilayers, small-angle scattering for the large-scale structures, such as a vortex lattice in a superconductor, and neutron spin-echo spectroscopy for glasses and polymers. Each of these techniques and many others offer exciting opportunities for examining magnetism and warrant extensive reviews, but the aim of this chapter is not to survey how different neutron-scattering methods are used to examine magnetic properties of different materials. Here, we concentrate on reviewing the basics of the magnetic neutron scattering, and on the recent developments in applying one of the oldest methods, the triple axis spectroscopy, that still is among the most extensively used ones. The developments discussed here are new and have not been coherently reviewed. Chapter 2 of this book reviews magnetic small-angle scattering, and modern techniques of neutron magnetic reflectometry are discussed in Chapter 3.

ZALIZNYAK,I.A.; LEE,S.H.

2004-07-30T23:59:59.000Z

436

Magnetic biomonitoring by moss bags for industry-derived air pollution in SW Finland  

Science Journals Connector (OSTI)

Abstract We provide the first detailed case study using Sphagnum papillosum moss bags for active magnetic monitoring of airborne industrial pollution in order to evaluate the actual role of various emission sources and the competence of current environmental protection actions relative to the air quality. The origin and spatial spreading of particulate matter (PM) based on magnetic, chemical, and SEM-EDX analyses was studied around the Industrial Park in Harjavalta, SW Finland. The data was collected during two 6-month sampling periods along 8 km transects in 2010–2011. The results support our hypothesis that the main emission source of PM is not the Cu–Ni smelter's pipe as presumed in previous chemical monitorings. We argue that the hot spot area within the severe impact pollution zone is related to slag processing and/or other unidentified industrial activity. At short distances various dust-providing sources outweigh the fly-ash load from the Cu–Ni smelter's pipe. Active magnetic monitoring by moss bags will help in planning environmental actions as well as in improvement of health conditions for industrial staff and town residents living next to the Industrial Park.

Hanna Salo; Joni Mäkinen

2014-01-01T23:59:59.000Z

437

DOE-HDBK-3010-94; DOE Handbook Airborne Release Fractions/Rates and Respirable Fractions for Nonreactor Nuclear Facilities, Volume 1  

Broader source: Energy.gov (indexed) [DOE]

10-94 10-94 December 1994 CHANGE NOTICE NO. 1 March 2000 DOE HANDBOOK AIRBORNE RELEASE FRACTIONS/RATES AND RESPIRABLE FRACTIONS FOR NONREACTOR NUCLEAR FACILITIES Volume I - Analysis of Experimental Data U.S. Department of Energy AREA SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. This document has been reproduced from the best available copy. Available to DOE and DOE contractors from ES&H Technical Information Services, U.S. Department of Energy, (800) 473-4375, fax: (301) 903-9823. Available to the public from the U.S. Department of Commerce, Technology Administration, National Technical Information Service, Springfield, VA 22161; (703) 605-6000. Change Notice No. 1 DOE-HDBK-3010-94 March 2000 Airborne Release Fractions/Rates and Respirable Fractions

438

Estimated airborne release of plutonium from the Exxon Nuclear Mixed Oxide Fuel Plant at Richland, Washington as a result of postulated damage from severe wind and earthquake hazard  

SciTech Connect (OSTI)

The potential airborne releases of plutonium from postulated damage sustained by the Exxon Nuclear Company's Mixed Oxide Fabrication Plant at Richland, Washington, as a result of various levels of wind and earthquake hazard, are estimated. The releases are based on damage scenarios that range up to 250 mph for wind hazard and in excess of 1.0 g ground acceleration for seismic hazard, which were developed by other specialists. The approaches and factors used to estimate the releases (inventories of dispersible materials at risk, damage levels and ratios, fractional airborne releases of dispersible materials under stress, atmosphere exchange rates, and source term ranges) are discussed. Release estimates range from less than 10/sup -7/ g to greater than 14 g of plutonium over a four-day period.

Mishima, J.; Schwendiman, L.C.; Ayer, J.E.; Owzarski, E.L.

1980-02-01T23:59:59.000Z

439

IS MAGNETIC RECONNECTION THE CAUSE OF SUPERSONIC UPFLOWS IN GRANULAR CELLS?  

SciTech Connect (OSTI)

In a previous work, we reported on the discovery of supersonic magnetic upflows on granular cells in data from the SUNRISE/IMaX instrument. In the present work, we investigate the physical origin of these events employing data from the same instrument but with higher spectral sampling. By means of the inversion of Stokes profiles we are able to recover the physical parameters (temperature, magnetic field, line-of-sight velocity, etc.) present in the solar photosphere at the time of these events. The inversion is performed in a Monte-Carlo-like fashion, that is, repeating it many times with different initializations and retaining only the best result. We find that many of the events are characterized by a reversal in the polarity of the magnetic field along the vertical direction in the photosphere, accompanied by an enhancement in the temperature and by supersonic line-of-sight velocities. In about half of the studied events, large blueshifted and redshifted line-of-sight velocities coexist above/below each other. These features can be explained in terms of magnetic reconnection, where the energy stored in the magnetic field is released in the form of kinetic and thermal energy when magnetic field lines of opposite polarities coalesce. However, the agreement with magnetic reconnection is not perfect and, therefore, other possible physical mechanisms might also play a role.

Borrero, J. M.; Schmidt, W. [Kiepenheuer-Institut fuer Sonnenphysik, Schoeneckstr. 6, D-79110, Freiburg (Germany); Martinez Pillet, V.; Quintero Noda, C.; Bonet, J. A. [Instituto de Astrofisica de Canarias, Avd. Via Lactea s/n, E-38200 La Laguna (Spain); Del Toro Iniesta, J. C.; Bellot Rubio, L. R., E-mail: borrero@kis.uni-freiburg.de, E-mail: wolfgang@kis.uni-freiburg.de, E-mail: vmp@ll.iac.es, E-mail: cqn@ll.iac.es, E-mail: jab@ll.iac.es, E-mail: jti@iaa.es, E-mail: lbellot@iaa.es [Instituto de Astrofisica de Andalucia (CSIC), Apdo. de Correos 3004, E-18080 Granada (Spain)

2013-05-01T23:59:59.000Z

440

Journal of Magnetism and Magnetic Materials 290291 (2005) 836838 Dynamic response limits of an elastic magnet  

E-Print Network [OSTI]

on the elastomagnetic coupling but also on the interaction among the microparticles magnetic moments depending as for possible applications [1,2]. When the magnetic particles are permanently magnetized and the matrix material. Bar shaped samples have been produced with the permanent magnetic moments preferentially oriented

Franzese, Giancarlo

Note: This page contains sample records for the topic "repeated airborne magnetic" from the National Library of EnergyBeta (NLEBeta).
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441

GSI Rapid Cycling Magnets Project | Superconducting Magnet Division  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

GSI Rapid Cycling Magnets Project GSI Rapid Cycling Magnets Project While superconducting magnets easily achieve higher magnetic fields at lower cost than conventional electromagnets, it is very difficult to ramp superconducting magnets very quickly. But exactly that is needed at the planned new facility of GSI, the Gesellschaft für Schwerionenforschung (Institute for Heavy Ion Research), in Darmstadt, Germany. In the magnets of the SIS 200 ring, one of the components of the new facility, the magnetic field must be ramped from 0.5 Tesla to 4 Tesla at a rate of 1 Tesla per second. This ramp rate is almost 25 times faster than the ramp rate of the Relativistic Heavy Ion Collider (RHIC) magnets at Brookhaven National Lab (BNL), which ramp at a rate of 0.042 Tesla per second. While the SIS 200 magnets also require a slightly higher field strength than the

442

Evaluation of airborne geophysical surveys for large-scale mapping of contaminated mine pools: draft final report  

SciTech Connect (OSTI)

Decades of underground coal mining has left about 5,000 square miles of abandoned mine workings that are rapidly filling with water. The water quality of mine pools is often poor; environmental regulatory agencies are concerned because water from mine pools could contaminate diminishing surface and groundwater supplies. Mine pools are also a threat to the safety of current mining operations. Conversely, mine pools are a large, untapped water resource that, with treatment, could be used for a variety of industrial purposes. Others have proposed using mine pools in conjunction with heat pumps as a source of heating and cooling for large industrial facilities. The management or use of mine pool water requires accurate maps of mine pools. West Virginia University has predicted the likely location and volume of mine pools in the Pittsburgh Coalbed using existing mine maps, structure contour maps, and measured mine pool elevations. Unfortunately, mine maps only reflect conditions at the time of mining, are not available for all mines, and do not always denote the maximum extent of mining. Since 1999, the National Energy Technology Laboratory (NETL) has been evaluating helicopter-borne, electromagnetic sensing technologies for the detection and mapping of mine pools. Frequency domain electromagnetic sensors are able to detect shallow mine pools (depth < 50 m) if there is sufficient contrast between the conductance of the mine pool and the conductance of the overburden. The mine pools (conductors) most confidently detected by this technology are overlain by thick, resistive sandstone layers. In 2003, a helicopter time domain electromagnetic sensor was applied to mined areas in southwestern Virginia in an attempt to increase the depth of mine pool detection. This study failed because the mine pool targets were thin and not very conductive. Also, large areas of the surveys were degraded or made unusable by excessive amounts of cultural electromagnetic noise that obscured the subtle mine pool anomalies. However, post-survey modeling suggested that thicker, more conductive mine pools might be detected at a more suitable location. The current study sought to identify the best time domain electromagnetic sensor for detecting mine pools and to test it in an area where the mine pools are thicker and more conductive that those in southwestern Virginia. After a careful comparison of all airborne time domain electromagnetic sensors (including both helicopter and fixed-wing systems), the SkyTEM system from Denmark was determined to be the best technology for this application. Whereas most airborne time domain electromagnetic systems were developed to find large, deep, highly conductive mineral deposits, the SkyTEM system is designed for groundwater exploration studies, an application similar to mine pool detection.

Geosciences Division, National Energy Technology Laboratory, US Department of Energy, Pittsburgh, PA; Hammack, R.W.

2006-12-28T23:59:59.000Z

443

Orbital Magnetism: Pros and Cons for Enhancing the Cluster Magnetism  

Science Journals Connector (OSTI)

The discrepancy seen in the experimental and theoretical results on the magnetic moment of a small magnetic cluster has been attributed to the contribution arising from orbital magnetism. In this Letter we show that the magnetic states with large orbital magnetic moment are not always energetically favorable; they could, however, be realizable by coating the cluster or deposing it on appropriate substrates. More importantly, our work shows that the crucial factors that determine the cluster magnetism are found to be the intrinsic, and consequently, the extrinsic properties of the constituent atoms of the cluster.

Antonis N. Andriotis and Madhu Menon

2004-07-09T23:59:59.000Z

444

Magnetic monopole and the nature of the static magnetic field  

E-Print Network [OSTI]

We investigate the factuality of the hypothetical magnetic monopole and the nature of the static magnetic field. It is shown from many aspects that the concept of the massive magnetic monopoles clearly is physically untrue. We argue that the static magnetic field of a bar magnet, in fact, is the static electric field of the periodically quasi-one-dimensional electric-dipole superlattice, which can be well established in some transition metals with the localized d-electron. This research may shed light on the perfect unification of magnetic and electrical phenomena.

Xiuqing Huang

2008-12-10T23:59:59.000Z

445

Magnets and Power Supplies  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Bibliography Up: APS Storage Ring Parameters Previous: Longitudinal Bibliography Up: APS Storage Ring Parameters Previous: Longitudinal bunch profile and Magnets and Power Supplies Dipole Magnets and Power Supplies Value Dipole Number 80+1 No. of power supplies 1 Magnetic length 3.06 m Core length 3.00 m Bending radius 38.9611 m Power supply limit 500.0 A Field at 7 GeV 0.599 T Dipole trim coils Number 80+1 No. of power supplies 80 Magnetic length 3.06 m Core length 3.00 m Power supply limit 20.0 A Maximum field 0.04 T Horizontal Correction Dipoles Number 317 No. of power supplies 317 Magnetic length 0.160 m Core length 0.07 m Power supply limit 150.0 A Maximum field 0.16 T Max. deflection at 7 GeV 1.1 mrad Vertical Corrector Dipoles Number 317 No. of power supplies 317

446

Reversible collisionless magnetic reconnection  

SciTech Connect (OSTI)

Reversible magnetic reconnection is demonstrated for the first time by means of gyrokinetic numerical simulations of a collisionless magnetized plasma. Growth of a current-driven instability in a sheared magnetic field is accompanied by magnetic reconnection due to electron inertia effects. Following the instability growth, the collisionless reconnection is accelerated with development of a cross-shaped structure of current density, and then all field lines are reconnected. The fully reconnected state is followed by the secondary reconnection resulting in a weakly turbulent state. A time-reversed simulation starting from the turbulent state manifests that the collisionless reconnection process proceeds inversely leading to the initial state. During the reversed reconnection, the kinetic energy is reconverted into the original magnetic field energy. In order to understand the stability of reversed process, an external perturbation is added to the fully reconnected state, and it is found that the accelerated reconnection is reversible when the deviation of the E × B streamlines due to the perturbation is comparable with or smaller than a current layer width.

Ishizawa, A.; Watanabe, T.-H. [National Institute for Fusion Science, Toki 509-5292 (Japan)] [National Institute for Fusion Science, Toki 509-5292 (Japan)

2013-10-15T23:59:59.000Z

447

Magnetism in Transition Metals  

Science Journals Connector (OSTI)

An attempt is made to distinguish "band-type magnetization" from "alignment-type magnetization" on the basis of whether the local moments associated with the Wannier functions on the atom sites are "induced" or "permanent." In general, the local moment is partially induced and partially permanent, and a criterion is suggested: A local moment is defined to be of the permanent variety if in the presence of magnetic forces (supposed characteristic of the crystal in a given circumstance) tending to produce a moment in one sense (z^, say) of a direction, it can maintain itself (perhaps altered in magnitude, however) in the opposite sense (-z^), as well as in z^. The internal mechanisms tending to produce permanent moments are simplified to just the Hcorr of Anderson, and the external inducing mechanism are the Heisenberg interaction and a magnetic field, Hspin, say. If Hcorr dominates Hspin, then it is shown that a local moment can maintain itself to the polarizing tendencies (whence an alignment type of magnetization calculation is appropriate), but if Hspin dominates Hcorr, then the local moment has only one sense possible in this environment (and a band type of calculation is appropriate). It is suggested that this distinction is relevant to transition metals.

M. Bailyn

1965-09-13T23:59:59.000Z

448

Magnetic Techniques | Open Energy Information  

Open Energy Info (EERE)

Magnetic Techniques Magnetic Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Magnetic Techniques Details Activities (0) Areas (0) Regions (0) NEPA(1) Exploration Technique Information Exploration Group: Geophysical Techniques Exploration Sub Group: Magnetic Techniques Parent Exploration Technique: Geophysical Techniques Information Provided by Technique Lithology: Presence of magnetic minerals such as magnetite. Stratigraphic/Structural: Mapping of basement structures, horst blocks, fault systems, fracture zones, dykes and intrusions. Hydrological: The circulation of hydrothermal fluid may impact the magnetic susceptibility of rocks. Thermal: Rocks lose their magnetic properties at the Curie temperature (580° C for magnetite) [1] and, upon cooling, remagnetize in the present magnetic field orientation. The Curie point depth in the subsurface may be determined in a magnetic survey to provide information about hydrothermal activity in a region.

449

Magnetic neutron scattering (invited)  

Science Journals Connector (OSTI)

The application of neutron scattering techniques to magnetic problems is reviewed. We will first discuss diffraction techniques used to solve magnetic structures as well as to measure magnetic form factors order parameters critical phenomena and the scattering from low?dimensional systems. We will also discuss inelastic scattering techniques including polarized beam methods utilized to determine the spin dynamics of various materials. Information will be provided about the types of spectrometers available at the user?oriented national facilities located at Argonne National Laboratory Brookhaven National Laboratory Los Alamos National Laboratory The National Institute of Standards and Technology and Oak Ridge National Laboratory as well as the spectrometers at the Missouri University Research Reactor.

J. W. Lynn

1994-01-01T23:59:59.000Z

450

Strengths and limitations of using repeat-dose toxicity studies to predict effects on fertility  

Science Journals Connector (OSTI)

The upcoming European chemicals legislation REACH (Registration, Evaluation, and Authorisation of Chemicals) will require the risk assessment of many thousands of chemicals. It is therefore necessary to develop intelligent testing strategies to ensure that chemicals of concern are identified whilst minimising the testing of chemicals using animals. Xenobiotics may perturb the reproductive cycle, and for this reason several reproductive studies are recommended under REACH. One of the endpoints assessed in this battery of tests is mating performance and fertility. Animal tests that address this endpoint use a relatively large number of animals and are also costly in terms of resource, time, and money. If it can be shown that data from non-reproductive studies such as in-vitro or repeat-dose toxicity tests are capable of generating reliable alerts for effects on fertility then some animal testing may be avoided. Available rat sub-chronic and fertility data for 44 chemicals that have been classified by the European Union as toxic to fertility were therefore analysed for concordance of effects. Because it was considered appropriate to read across data for some chemicals these data sets were considered relevant for 73 of the 102 chemicals currently classified as toxic to reproduction (fertility) under this system. For all but 5 of these chemicals it was considered that a well-performed sub-chronic toxicity study would have detected pathology in the male, and in some cases, the female reproductive tract. Three showed evidence of direct interaction with oestrogen or androgen receptors (linuron, nonylphenol, and fenarimol). The remaining chemicals (quinomethionate and azafenidin) act by modes of action that do not require direct interaction with steroid receptors. However, both these materials caused in-utero deaths in pre-natal developmental toxicity studies, and the relatively low \\{NOAELs\\} and the nature of the hazard identified in the sub-chronic tests provides an alert for possible effects on fertility (or early embryonic development), the biological significance of which can be ascertained in a littering (e.g. 2-generation) study. From the chemicals reviewed it would appear that where there are no alerts from a repeat-dose toxicity study, a pre-natal developmental toxicity study and sex steroid receptor binding assays, there exists a low priority for animal studies to address the fertility endpoint. The ability for these types of tests to provide alerts for effects on fertility is clearly dependent on the mode of action of the toxicant in question. Further work should therefore be performed to determine the ‘failure rate’ of this type of approach when applied to a larger group of chemicals with diverse modes of action.

M.P. Dent

2007-01-01T23:59:59.000Z

451

26 Tesla DC Magnet for Neutron Scattering  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Previously, DC Magnets located at Neutron-Scattering Beamlines were commercially-manufactured superconducting magnets and limited to 17 T. A few pulsed magnet systems have been...

452

National High Magnetic Field Laboratory: Superconductors  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

opposes the magnetic field generating the current. In a perfect diamagnet, the magnetic field lines produced exactly mirror those of the changing magnetic field that induce them,...

453

Frustrated Magnetism in Low-Dimensional Lattices  

E-Print Network [OSTI]

and C. Baines. Quantum magnetism in the paratacamite family:14] Stephen Blundell. Magnetism in Condensed Matter. OxfordElectrons and Quantum Magnetism. Graduate Texts in Con-

Tovar, Mayra

2011-01-01T23:59:59.000Z

454

Magnetism of natural pyrrhotite, haematite and ilmenite  

Science Journals Connector (OSTI)

The paper deals with the magnetic properties of the natural minerals haematite, ilmenite and pyrrhotite. The natural remanent magnetization Jn, the volume susceptibility ?, the specific magnetization of saturatio...

Vladimír Kropá?ek; Miroslav Krs; Reviewer F. Janák

1971-01-01T23:59:59.000Z

455

MagLab Audio Dictionary: Magnet Experiments  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Experiments with Magnets Now Playing: Experiments with Magnets Enable Javascript and Flash to stream the Magnet Minute Greg Boebinger Associated Links Science Highlights: Research...

456

National High Magnetic Field Laboratory Audio Dictionary: Resistive...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Flash to stream the Magnet Minute Mark Bird Associated Links Making Magnets (audio slideshow) Making Resistive Magnets (article) Meet the Magnets Magnet Science &...

457

Final Report DE-EE0005380: Assessment of Offshore Wind Farm Effects on Sea Surface, Subsurface and Airborne Electronic Systems  

SciTech Connect (OSTI)

Offshore wind energy is a valuable resource that can provide a significant boost to the US renewable energy portfolio. A current constraint to the development of offshore wind farms is the potential for interference to be caused by large wind farms on existing electronic and acoustical equipment such as radar and sonar systems for surveillance, navigation and communications. The US Department of Energy funded this study as an objective assessment of possible interference to various types of equipment operating in the marine environment where offshore wind farms could be installed. The objective of this project was to conduct a baseline evaluation of electromagnetic and acoustical challenges to sea surface, subsurface and airborne electronic systems presented by offshore wind farms. To accomplish this goal, the following tasks were carried out: (1) survey electronic systems that can potentially be impacted by large offshore wind farms, and identify impact assessment studies and research and development activities both within and outside the US, (2) engage key stakeholders to identify their possible concerns and operating requirements, (3) conduct first-principle modeling on the interactions of electromagnetic signals with, and the radiation of underwater acoustic signals from, offshore wind farms to evaluate the effect of such interactions on electronic systems, and (4) provide impact assessments, recommend mitigation methods, prioritize future research directions, and disseminate project findings. This report provides a detailed description of the methodologies used to carry out the study, key findings of the study, and a list of recommendations derived based the findings.

Ling, Hao [The University of Texas at Austin] [The University of Texas at Austin; Hamilton, Mark F. [The University of Texas at Austin Applied Research Laboratories] [The University of Texas at Austin Applied Research Laboratories; Bhalla, Rajan [Science Applications International Corporation] [Science Applications International Corporation; Brown, Walter E. [The University of Texas at Austin Applied Research Laboratories] [The University of Texas at Austin Applied Research Laboratories; Hay, Todd A. [The University of Texas at Austin Applied Research Laboratories] [The University of Texas at Austin Applied Research Laboratories; Whitelonis, Nicholas J. [The University of Texas at Austin] [The University of Texas at Austin; Yang, Shang-Te [The University of Texas at Austin] [The University of Texas at Austin; Naqvi, Aale R. [The University of Texas at Austin] [The University of Texas at Austin

2013-09-30T23:59:59.000Z

458

On Magnetized Neutron Stars  

E-Print Network [OSTI]

In this work we review the formalism normally used in the literature about the effects of density-dependent magnetic fields on the properties of neutron stars, expose some ambiguities that arise and propose a way to solve the related problem. Our approach uses a different prescription for the calculation of the pressure based on the chaotic field formalism for the stress tensor and also a different way of introducing a variable magnetic field, which depends on the energy density rather than on the baryonic density.

Lopes, Luiz L

2014-01-01T23:59:59.000Z

459

Magnetically Confined Plasmas  

Science Journals Connector (OSTI)

The propagation of high-velocity shock waves in an axial magnetic field generated by single-turn coils connected in parallel to a condenser bank is investigated. Time-resolved photographs show that the plasma behind the shock front is driven away from the tube walls by the magnetic pressure. This compression heats the ionized gas and maintains a high shock velocity during the transit of the front through the coil. The compressed plasma appears to be stable and undergoes radial oscillations that follow the current oscillations. The interpretation and significance of these observations in controlled thermonuclear fusion research are discussed.

A. C. Kolb

1958-10-15T23:59:59.000Z

460

Magnetic impurities in graphene  

Science Journals Connector (OSTI)

We used a quantum Monte Carlo method to study the magnetic impurity adatoms on graphene. We found that by tuning the chemical potential we could switch the values of the impurity local magnet moment between relatively large and small values. Our computations of the impurity spectral density found its behavior to differ significantly from that of an impurity in a normal metal and our computations of the charge-charge and spin-spin correlations between the impurity and the conduction-band electrons found them to be strongly suppressed. In general, our results are consistent with those from poor man’s scaling and numerical renormalization group methods.

F. M. Hu; Tianxing Ma; Hai-Qing Lin; J. E. Gubernatis

2011-08-03T23:59:59.000Z

Note: This page contains sample records for the topic "repeated airborne magnetic" 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.


461

Corrosion characteristics of magnetic assemblies composing dental magnetic attachments  

Science Journals Connector (OSTI)

This study electrochemically evaluated corrosion resistance of commercially available cup yoke type magnetic assemblies. Anodic polarization curves in 0.9% NaCl solution at 37°C showed that the magnetic assemb...

Yukyo Takada; Noriko Takahashi; Osamu Okuno

2007-01-01T23:59:59.000Z

462

On the dynamics of magnetic fluids in magnetic resonance imaging  

E-Print Network [OSTI]

The hydrodynamics of magnetic fluids, often termed ferrofluids, has been an active area of research since the mid 1960s. However, it is only in the past twenty years that these fluids have begun to be used in magnetic ...

Cantillon-Murphy, Pádraig J

2008-01-01T23:59:59.000Z

463

Magnetic Force Between Magnetic Nano Probes at Optical Frequency  

E-Print Network [OSTI]

Magnetic force microscopy based on the interaction of static magnetic materials was demonstrated in the past with resolutions in the order of nanometers. Measurement techniques based on forces between electric dipoles oscillating at optical frequencies have been also demonstrated leading to the standard operation of the scanning force microscope (SFM). However the investigations of a SFM based on the magnetic force generated by magnetic dipole moments oscillating at optical frequencies has not been tackled yet. With this goal in mind we establish a theoretical model towards observable magnetic force interaction between two magnetically polarizable nanoparticles at optical frequency and show such a force to be in the order of piconewtons which could be in principle detected by conventional microscopy techniques. Two possible principles for conceiving magnetically polarizable nano probes able to generate strong magnetic dipoles at optical frequency are investigated based on silicon nanoparticles and on clusters...

Guclu, Caner; Capolino, Filippo

2014-01-01T23:59:59.000Z

464

Magnetic line trapping and effective transport in stochastic magnetic fields  

Science Journals Connector (OSTI)

The transport of collisional particles in stochastic magnetic fields is studied using the decorrelation trajectory method. The nonlinear effect of magnetic line trapping is considered together with particle collisions. The running diffusion coefficient is determined for arbitrary values of the statistical parameters of the stochastic magnetic field and of the collisional velocity. The effect of the magnetic line trapping is determined. New anomalous diffusion regimes are found.

M. Vlad; F. Spineanu; J. H. Misguich; R. Balescu

2003-02-07T23:59:59.000Z

465

Studying Knowledge Work It has been mentioned earlier in this thesis, but it is worth to repeat that the  

E-Print Network [OSTI]

6 Studying Knowledge Work It has been mentioned earlier in this thesis, but it is worth to repeat, knowledge and competencies are becoming resources more important than the material resources on the educational system and companies. What it means to be a knowledge worker is very much an open question

Broberg, Anders

466

Poly-dipeptides encoded by the C9orf72 repeats bind nucleoli, impede RNA biogenesis, and kill cells  

Science Journals Connector (OSTI)

...L. Dickson D. W. Boylan K. B. Graff-Radford N. R. Rademakers R. , Expanded GGGGCC hexanucleotide repeat in noncoding region...van Blitterswijk M. M. Jansen-West K. Paul J. W. 3rd Rademakers R. Boylan K. B. Dickson D. W. Petrucelli L. , Unconventional...

Ilmin Kwon; Siheng Xiang; Masato Kato; Leeju Wu; Pano Theodoropoulos; Tao Wang; Jiwoong Kim; Jonghyun Yun; Yang Xie; Steven L. McKnight

2014-09-05T23:59:59.000Z

467

Probing the Role of PrP Repeats in Conformational Conversion and Amyloid Assembly of Chimeric Yeast Prions*S  

E-Print Network [OSTI]

a relatively good understanding of the factors that guide the conformational conversion of the Sup35 prion conversion of the protein Sup35, a translation termina- tion factor. In its prion conformation, Sup35Probing the Role of PrP Repeats in Conformational Conversion and Amyloid Assembly of Chimeric Yeast

Lindquist, Susan

468

Effect of repeated retrogradation on structural characteristics and in vitro digestibility of waxy potato starch  

Science Journals Connector (OSTI)

Abstract The effects of repeated retrogradation (RR) treatment on the structural characteristics and in vitro digestibility of waxy potato starch were investigated. The cycling times of RR ranging from 1 to 5 were designated as RR-1, RR-2, RR-3, RR-4, and RR-5, respectively. A maximum SDS content (40.41%) was obtained by RR-2 treatment with the time interval of 48 h. RR-2-treated starch product exhibited a narrower melting temperature range, a higher onset temperature and a lower melting enthalpy compared with RR-1 treatment. Compared with native starch, X-ray diffraction patterns of treated starches were altered from B-type to C-type. The variation in relative crystallinity of RR-treated starch products was consistent with that in melting enthalpy. Moreover, compared with RR-1-treated starch, a large number of cavities were observed on the surface of RR-2-treated starch product with a time interval of 48 h, whereas more smooth regions were found on the surface of RR-5-treated starch product. This study suggested that structural changes of waxy potato starch treated with different cycling times of RR significantly affected the digestibility.

Yao-Yu Xie; Xiao-Pei Hu; Zheng-Yu Jin; Xue-Ming Xu; Han-Qing Chen

2014-01-01T23:59:59.000Z

469

Repeat Brachytherapy for Patients With Residual or Recurrent Tumors of Oral Cavity  

SciTech Connect (OSTI)

Purpose: To analyze data from patients receiving repeat brachytherapy (re-BT) for the treatment of residual or recurrent tumor in the oral cavity. Methods and Materials: Between January 2003 and December 2007, 62 patients who had undergone definitive BT as an initial treatment of oral cancer subsequently underwent re-BT for the treatment of residual or recurrent tumors at the diagnostic radiology and oncology department (Tokyo Medical and Dental University Hospital). Re-BT was performed 0.9-73 months (median, 5.7) after the initial BT. Au-198 grains were used as the re-BT source in all 62 patients, and an area of 0.8-6.3 cm{sup 2} (median, 3.1) was permanently irradiated with 60-110 Gy (median, 83) according to the system of Paterson-Parker. Results: The 2-year local control and overall survival rate was 53% and 66%, respectively, and local control significantly affected overall survival. Both local control and overall survival were affected by the initial tumor characteristics and the macroscopic appearance of the residual or recurrent tumor. Grade 3 or 4 complications were seen in 5 patients. The incidence of mandibular and mucosal complications was significantly related to a biologic effective dose of {alpha}/{beta} of 3 Gy to the surface of the gingiva and mucosa, respectively. Conclusion: Re-BT using Au-198 grains for the treatment of residual or recurrent tumor after definitive BT in the oral cavity is effective and well tolerated.

Yoshimura, Ryo-ichi, E-mail: ysmrmrad@tmd.ac.jp [Department of Diagnostic Radiology and Oncology, Tokyo Medical and Dental University, Tokyo (Japan); Shibuya, Hitoshi; Hayashi, Keiji; Nakagawa, Keiko; Toda, Kazuma [Department of Diagnostic Radiology and Oncology, Tokyo Medical and Dental University, Tokyo (Japan); Watanabe, Hiroshi [Department of Oral and Maxillofacial Radiology, Tokyo Medical and Dental University, Tokyo (Japan); Kaida, Atushi; Miura, Masahiko [Department of Oral Radiation Oncology, Tokyo Medical and Dental University, Tokyo (Japan)

2012-07-15T23:59:59.000Z

470

The repeated failure of a cut-slope despite continuous reassessment and remedial works  

Science Journals Connector (OSTI)

The failure of slopes and the subsequent costs of remedial works are often the result of insufficient geological investigation and inadequate interpretation of ground conditions prior to design. This is compounded by poor investigations into the causes of failures and systemic problems associated with poorly defined responsibilities for the stability of cut-slopes. This paper reviews such problems in detail with reference to the repeated failure of one large slope in Korea. It is demonstrated that the original ground investigation and design were deficient particularly considering the predictable complexity of the geological conditions. Subsequent investigations were similarly deficient. As a consequence the slope failed six times despite nine reassessments by various professional engineers and the implementation of several different remedial schemes over a period of 7 years up to a disastrous failure in 2002. Further reviews, redesign, construction and litigation have continued since then up to the present. During the history of design, failure and reassessment the height of the cut-slope increased from 45 m to 155 m and the cost increased from 3.3 million to 26 million US dollars.

Su-Gon Lee; Stephen R. Hencher

2009-01-01T23:59:59.000Z

471

Magnetic Coordinates for Systems with Imperfect Magnetic Surfaces  

E-Print Network [OSTI]

-orbits, and the surfaces are formed from a continuous one-parameter family of such orbits. Magnetic field-line flow to the commonly made assumption that all field lines lie on nested toroidal magnetic surfaces. We need to define the concept of an approximate magnetic surface--a toroidal surface to which the field lines are as close

Dewar, Robert L.

472

Effect of magnetic anisotropy on magnetic shaking E. Papernoa)  

E-Print Network [OSTI]

Effect of magnetic anisotropy on magnetic shaking E. Papernoa) and I. Sasada Department of Applied Science for Electronics and Materials, Kyushu University, 6-1 Kasuga-Koen, Kasuga-Shi, Fukuoka 816-8580, Japan The effect of magnetic shaking on both the transverse and axial shielding factors TSF and ASF

Paperno, Eugene

473

MagLab - Meet the Magnets: 45 Tesla Hybrid  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Features > Meet the Magnets Meet the Magnets Choose a Magnet 45 Tesla Hybrid 900 MHz NMR Magnet 25 Tesla Split Magnet 14.5 Tesla ICR Magnet 100 Tesla Multi-shot Magnet 600 MHz...

474

Magnetic confinement of fusion plasmas  

Science Journals Connector (OSTI)

Starting with the Lorentz force law the basic physics involved in magnetic confinement in thermonuclear reactors is reviewed. Among the topics covered are magnetic bottles tokamaks tandem mirrors and energy balance considerations.(AIP)

George Patrick Lasche

1981-01-01T23:59:59.000Z

475

THE TPC MAGNET CRYOGENIC SYSTEM  

E-Print Network [OSTI]

Division THE TPC MAGNET CRYOGENIC SYSTEM M.A. Green, W.A.LBL-10552 THE TPC MAGNET CRYOGENIC SYSTEM M. A. Green, W. A.systems. no 9. R. B. Scott, Cryogenic Engineering, D. Van

Green, M.A.

2010-01-01T23:59:59.000Z

476

MagLab - Magnet Milestones  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Arrow Magnet Milestones MagLab U logo Find out about some of the key events in magnet history. We are adding to this list over time, so check back again soon for new entries....

477

Magnetic resonance apparatus  

DOE Patents [OSTI]

Means for producing a region of homogeneous magnetic field remote from the source of the field, wherein two equal field sources are arranged axially so their fields oppose, producing a region near the plane perpendicular to the axis midway between the sources where the radial component of the field goes through a maximum. Near the maximum, the field is homogeneous over prescribed regions.

Jackson, Jasper A. (Los Alamos, NM); Cooper, Richard K. (Los Alamos, NM)

1982-01-01T23:59:59.000Z

478

Solar Magnetic Flux Ropes  

E-Print Network [OSTI]

The most probable initial magnetic configuration of a CME is a flux rope consisting of twisted field lines which fill the whole volume of a dark coronal cavity. The flux ropes can be in stable equilibrium in the coronal magnetic field for weeks and even months, but suddenly they loose their stability and erupt with high speed. Their transition to the unstable phase depends on the parameters of the flux rope (i.e., total electric current, twist, mass loading etc.), as well as on the properties of the ambient coronal magnetic field. One of the major governing factors is the vertical gradient of the coronal magnetic field which is estimated as decay index (n). Cold dense prominence material can be collected in the lower parts of the helical flux tubes. Filaments are therefore good tracers of the flux ropes in the corona, which become visible long before the beginning of the eruption. The perspectives of the filament eruptions and following CMEs can be estimated by the comparison of observed filament heights with...

Filippov, Boris; Srivastava, Abhishek K; Uddin, Wahab

2015-01-01T23:59:59.000Z

479

Rotary magnetic heat pump  

DOE Patents [OSTI]

A rotary magnetic heat pump constructed without flow seals or segmented rotor accomplishes recuperation and regeneration by using split flow paths. Heat exchange fluid pumped through heat exchangers and returned to the heat pump splits into two flow components: one flowing counter to the rotor rotation and one flowing with the rotation. 5 figs.

Kirol, L.D.

1987-02-11T23:59:59.000Z

480

Superconducting Magnet Division  

E-Print Network [OSTI]

in the 400 kW end of RIA's Fragment Separator are subjected to several orders of magnitude more radiation an order of magnitude as compared to that for present superconducting accelerator magnets. An OPERA3d model://www.phy.anl.gov/ria/ http://www.orau.org/ria/ Figure: On this chart of the nuclides, black squares represent stable nuclei

Gupta, Ramesh

Note: This page contains sample records for the topic "repeated airborne magnetic" 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

Magnetism in bcc cobalt  

Science Journals Connector (OSTI)

Local-spin-density-approximation-based calculations, performed using a general-potential linearized augmented-plane-wave method, are presented for bcc Co. The ground-state properties and magnetization energies are reported. It is found that the moment is strongly suppressed in constrained antiferromagnetic calculations, indicating that a local-moment picture is less appropriate for this material than for bcc iron.

D. J. Singh

1992-02-01T23:59:59.000Z

482

Magnetic Monopole Searches  

E-Print Network [OSTI]

In these lecture notes we discuss the status of the searches for classical Dirac Magnetic Monopoles (MMs) at accelerators, for GUT superheavy MMs in the penetrating cosmic radiation and for Intermediate Mass MMs. Also the searches for nuclearites and Q-balls are considered.

G. Giacomelli; L. Patrizii

2005-06-07T23:59:59.000Z

483

Symmetry and cluster magnetism  

Science Journals Connector (OSTI)

Three possible isomers of 13-atom iron clusters are studied using local-density-functional methods that allow the spin of the cluster to be determined self-consistently. The ground state is the icosahedral structure. It has the greatest magnetic moment because of increased symmetry-required orbital degeneracy for electrons of different spins.

Brett I. Dunlap

1990-05-15T23:59:59.000Z

484

On Terrestrial Magnetism.  

Science Journals Connector (OSTI)

1843-1850 research-article On Terrestrial Magnetism. William A. Norton The Royal Society is collaborating with JSTOR to digitize, preserve, and extend access to Abstracts of the Papers Communicated to the Royal Society of London. www.jstor.org

1843-01-01T23:59:59.000Z

485

Dark matter, not magnetism  

Science Journals Connector (OSTI)

......Astronomical Society. Provided by the NASA Astrophysics Data System 1 March 1993 research-article Letters Dark matter, not magnetism Massimo Persic 1 2 Paolo Salucci 1 1 Notice that most optical rotation curves, coming from the gas-emitted H alpha line......

Massimo Persic; Paolo Salucci

1993-03-01T23:59:59.000Z

486

Daedalus A magnetic speaker  

Science Journals Connector (OSTI)

... is attracted into, and compressed by, a magnetic field. Vary that field at an audio frequency, and the pressure must vary in sympathy. This, says Daedalus, is why ... a baffle-board; but the electronics driving it will be subtle and complex. The audio signal will go through a square-rooter and programmable signal conditioner while it is still ...

David Jones

1998-09-24T23:59:59.000Z

487

Low field magnetic resonance imaging  

DOE Patents [OSTI]

A method and system of magnetic resonance imaging does not need a large homogenous field to truncate a gradient field. Spatial information is encoded into the spin magnetization by allowing the magnetization to evolve in a non-truncated gradient field and inducing a set of 180 degree rotations prior to signal acquisition.

Pines, Alexander (Berkeley, CA); Sakellariou, Dimitrios (Billancourt, FR); Meriles, Carlos A. (Fort Lee, NJ); Trabesinger, Andreas H. (London, GB)

2010-07-13T23:59:59.000Z

488

Future Directions for Magnetic Sensors  

E-Print Network [OSTI]

Future Directions for Magnetic Sensors: HYBRIDMATERIALS Our goal is to develop the scientific expertise needed to allow modeling and simulation to become the driving force in improving magnetic sensors effectiveness in developing new and improved magnetic sensors. By quantifying the improvement in sensor

489

Superconductivity and Magnetism: Materials Properties  

E-Print Network [OSTI]

#12;#12;Superconductivity and Magnetism: Materials Properties and Developments #12;Copyright 2003 and Magnetism: Materials Properties and Developments Extended abstracts of the 24th Risø International Symposium LABORATORY ROSKILDE, DENMARK #12;Risø International Symposium on Superconductivity and Magnetism: Material

490

LABORATORY VI ELECTRICITY FROM MAGNETISM  

E-Print Network [OSTI]

LABORATORY VI ELECTRICITY FROM MAGNETISM Lab VI - 1 In the previous problems you explored the magnetic field and its effect on moving charges. You also saw how electric currents could create magnetic can give rise to electric currents. This is the effect that allows the generation of electricity

Minnesota, University of

491

Magnetism of Chinese loess deposits  

Science Journals Connector (OSTI)

......April 1984 research-article Articles Magnetism of Chinese loess deposits Friedrich Heller...astr. Soc. (1984) 77, 125-141 Magnetism of Chinese loess deposits Friedrich Heller...considerable improvement of NRM cleaning. Often Magnetism of Chinese loess LOG R h ' M A H B......

Friedrich Heller; Liu Tungsheng

1984-04-01T23:59:59.000Z

492

Magnetic particle mixing with magnetic micro-convection for microfluidics  

Science Journals Connector (OSTI)

Abstract In this paper we discuss the magnetic micro-convection phenomenon as a tool for mixing enhancement in microfluidics systems in cases when one of the miscible fluids is a magnetic particle colloid. A system of a water-based magnetic fluid and water is investigated experimentally under homogeneous magnetic field in a Hele–Shaw cell. Subsequent image analysis both qualitatively and quantitatively reveals the high enhancement of mixing efficiency provided by this method. The mixing efficiency dependence on the magnetic field and the physical limits is discussed. A suitable model for a continuous-flow microfluidics setup for mixing with magnetic micro-convection is also proposed and justified with an experiment. In addition, possible applications in improving the speed of ferrohydrodynamic sorting and magnetic label or selected tracer mixing in lab on a chip systems are noted.

Guntars Kitenbergs; Kaspars E¯rglis; Régine Perzynski; Andrejs C?bers

2014-01-01T23:59:59.000Z

493

Characterization of a novel gene encoding ankyrin repeat domain from Cotesia vestalis polydnavirus (CvBV)  

SciTech Connect (OSTI)

Cotesia vestalis (Haliday) is an endoparasitoid of Plutella xylostella (L.) larvae and injects a polydnavirus (CvBV) into its host during oviposition. In this report we describe the characterization of a gene (CvBV805) and its products. CvBV805 is located on the segment S8 of CvBV genome; it has a size of 909 bp and encodes a predicted protein of 125 amino acids. This protein contains an ankyrin repeat domain with a high degree of similarity with I{kappa}B-like genes. Gene transcripts were detected in extracts of the host as early as 2 h post-parasitization (p.p.) and continued to be detected through 24 h. Tissue-specific expression patterns showed that CvBV805 might be involved in early host immunosuppression. CvBV805 was detected in parasitized hosts at 12 h p.p. and in rBac-eGFP-CvBV805-infected Tn-5B1-4 cells at 72 h.p.i. by using western blots analysis. The size of the protein expressed in the host hemocytes and infected Tn-5B1-4 cells was 17 kDa and 56 kDa (including eGFP), respectively, which nearly corresponded with the predicted molecular weight (14.31 kDa) of CvBV805, suggesting that the protein did not undergo extensive post-translational modification. The protein was confirmed to be present within the nuclear region in hemocytes of the parasitized P. xylostella larvae at 48 h p.p. using confocal laser scanning microscopy.

Shi Min; Chen Yafeng; Huang Fang; Liu Pengcheng [Institute of Insect Sciences, Zhejiang University, 268 Kaixuan Road, Hangzhou 310029 (China); Zhou Xueping [Institute of Biotechnology, Zhejiang University, 268 Kaixuan Road, Hangzhou 310029 (China); Chen Xuexin [Institute of Insect Sciences, Zhejiang University, 268 Kaixuan Road, Hangzhou 310029 (China)], E-mail: xxchen@zju.edu.cn

2008-06-05T23:59:59.000Z

494

Estimated airborne release of plutonium from Atomics International's Nuclear Materials Development Facility in the Santa Susana site, California, as a result of postulated damage from severe wind and earthquake hazard  

SciTech Connect (OSTI)

The potential mass of airborne releases of plutonium (source term) that could result from wind and seismic damage is estimated for the Atomics International Company's Nuclear Materials Development Facility (NMDF) at the Santa Susana site in California. The postulated source terms will be useful as the basis for estimating the potential dose to the maximum exposed individual by inhalation and to the total population living within a prescribed radius of the site. The respirable fraction of airborne particles is thus the principal concern. The estimated source terms are based on the damage ratio, and the potential airborne releases if all enclosures suffer particular levels of damage. In an attempt to provide a realistic range of potential source terms that include most of the normal processing conditions, a best estimate bounded by upper and lower limits is provided. The range of source terms is calculated by combining a high best estimate and a low damage ratio, based on a fraction of enclosures suffering crush or perforation, with the airborne release from enclosures based upon an upper limit, average, and lower limit inventory of dispersible materials at risk. Two throughput levels are considered. The factors used to evaluate the fractional airborne release of materials and the exchange rates between enclosed and exterior atmospheres are discussed. The postulated damage and source terms are discussed for wind and earthquake hazard scenarios in order of their increasing severity.

Mishima, J.; Ayer, J.E.

1981-09-01T23:59:59.000Z

495

Magnet coils for RHIC EBIS Alexander Pikin  

E-Print Network [OSTI]

Magnet coils for RHIC EBIS Alexander Pikin RHIC EBIS magnet coils are used for providing magnetic for magnet lens coil, which is 1% during 1 ms). 1. Electron gun magnet coil. This coil is used for generating the magnetic field in an electron gun region to provide the proper conditions for electron beam forming

496

Magnetic Edge States in Graphene  

E-Print Network [OSTI]

Magnetic confinement in graphene has been of recent and growing interest because its potential applications in nanotechnology. In particular, the observation of the so called magnetic edge states in graphene has opened the possibility to deepen into the generation of spin currents and its applications in spintronics. We study the magnetic edge states of quasi-particles arising in graphene monolayers due to an inhomogeneous magnetic field of a magnetic barrier in the formalism of the two-dimensional massless Dirac equation. We also show how the solutions of such states in each of both triangular sublattices of the graphene are related through a supersymmetric transformation in the quantum mechanical sense.

Gabriela Murguia

2010-08-29T23:59:59.000Z

497

Method of making permanent magnets  

DOE Patents [OSTI]

A method for making an isotropic permanent magnet comprises atomizing a melt of a rare earth-transition metal alloy (e.g., an Nd--Fe--B alloy enriched in Nd and B) under conditions to produce protectively coated, rapidly solidified, generally spherical alloy particles. Wherein a majority of the particles are produced/size classified within a given size fraction (e.g., 5 to 40 microns diameter) exhibiting optimum as-atomized magnetic properties and subjecting the particles to concurrent elevated temperature and elevated isotropic pressure for a time effective to yield a densified, magnetically isotropic magnet compact having enhanced magnetic properties and mechanical properties. 13 figures.

McCallum, R.W.; Dennis, K.W.; Lograsso, B.K.; Anderson, I.E.

1993-09-07T23:59:59.000Z

498

Multiple magnetic barriers in graphene  

Science Journals Connector (OSTI)

We study the behavior of charge carriers in graphene in inhomogeneous perpendicular magnetic fields. We consider two types of one-dimensional magnetic profiles, uniform in one direction: a sequence of N magnetic barriers and a sequence of alternating magnetic barriers and wells. In both cases, we compute the transmission coefficient of the magnetic structure by means of the transfer-matrix formalism and the associated conductance. In the first case the structure becomes increasingly transparent upon increasing N at fixed total magnetic flux. In the second case we find strong wave-vector filtering and resonant effects. We also calculate the band structure of a periodic magnetic superlattice and find a wave-vector-dependent gap around zero energy.

Luca Dell’Anna and Alessandro De Martino

2009-01-26T23:59:59.000Z

499

Magnetism of carbon clusters  

Science Journals Connector (OSTI)

The ?-electron ring current magnetic susceptibilities and endohedral chemical shifts of the fullerenes are calculated with the London theory. The diamagnetism calculated for the fullerenes that have been characterized to date does not show a monotonic increase toward the graphite value. By carrying out calculations on high-symmetry giant fullerenes (Cn) in the size regime 100magnetic susceptibility of graphite on a per carbon basis. Endohedral chemical shifts are predicted to be invariant to cluster size, but subject to the quantum size effects seen in smaller fullerenes and metallic clusters. The fullerenes are different from the metallic clusters because the finite band gap in conjugated carbon compounds allows the diamagnetic term to dominate at large cluster size. The experimentally observed decrease in nanotube material diamagnetism with temperature is attributed to the increased importance of the Van Vleck term due to finite-temperature effects.

R. C. Haddon and Alfredo Pasquarello

1994-12-01T23:59:59.000Z

500

Magnetism of iron. II  

Science Journals Connector (OSTI)

A previously developed theory of the magnetism of iron, based upon the notion of a randomized exchange field, is modified and extended. It is shown that Coulomb fields arise in association with the randomized exchange field; the modification allows one to take into account these fields, which are found to change the details of the previous results without affecting the main conclusions. The theory has been extended to calculate the properties of the model at finite temperatures: the Curie temperature (1840 K), the magnetization curve, the paramagnetic susceptibility (a Curie-Weiss law), and the effective interatomic exchange coupling are calculated for iron. The magnitudes of the atomic spin moments were found to vary little up to 1.5 times the Curie temperature.

J. Hubbard

1979-12-01T23:59:59.000Z