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1

2-M Probe Survey | Open Energy Information  

Open Energy Info (EERE)

2-M Probe Survey 2-M Probe Survey (Redirected from 2-M Probe) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: 2-M Probe Survey Details Activities (27) Areas (21) Regions (0) NEPA(3) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Data Collection and Mapping Parent Exploration Technique: Data Collection and Mapping Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Identify and delineate shallow thermal anomalies Cost Information Low-End Estimate (USD): 200.0020,000 centUSD 0.2 kUSD 2.0e-4 MUSD 2.0e-7 TUSD / station Median Estimate (USD): 300.0030,000 centUSD 0.3 kUSD 3.0e-4 MUSD 3.0e-7 TUSD / station High-End Estimate (USD): 500.0050,000 centUSD 0.5 kUSD 5.0e-4 MUSD

2

2-M Probe Survey | Open Energy Information  

Open Energy Info (EERE)

2-M Probe Survey 2-M Probe Survey Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: 2-M Probe Survey Details Activities (27) Areas (21) Regions (0) NEPA(3) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Data Collection and Mapping Parent Exploration Technique: Data Collection and Mapping Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Identify and delineate shallow thermal anomalies Cost Information Low-End Estimate (USD): 200.0020,000 centUSD 0.2 kUSD 2.0e-4 MUSD 2.0e-7 TUSD / station Median Estimate (USD): 300.0030,000 centUSD 0.3 kUSD 3.0e-4 MUSD 3.0e-7 TUSD / station High-End Estimate (USD): 500.0050,000 centUSD 0.5 kUSD 5.0e-4 MUSD 5.0e-7 TUSD / station

3

2-M Probe At Desert Peak Area (Sladek, Et Al., 2007) | Open Energy...  

Open Energy Info (EERE)

Sladek, Et Al., 2007) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Desert Peak Area (Sladek, Et Al., 2007) Exploration Activity...

4

2-M Probe At Fort Bliss Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

Fort Bliss Area (DOE GTP) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Fort Bliss Area (DOE GTP) Exploration Activity Details...

5

Definition: 2-M Probe Survey | Open Energy Information  

Open Energy Info (EERE)

Definition Definition Edit with form History Facebook icon Twitter icon » Definition: 2-M Probe Survey Jump to: navigation, search Dictionary.png 2-M Probe Survey Probe surveys are used to physically identify and delineate thermal anomalies. A 2-m long hollow steel tube with a tungsten-carbide alloy tip is driven into the ground using a hammer drill. Then a high-precision resistive-temperature device is inserted into the tube. The probe is then left in place for at least one hour.[2] Also Known As Probe Survey, 30-cm Probe Survey, (Temperature) Probe Survey References ↑ Mark F. Coolbaugh,Chris Sladek,James E. Faulds,Richard E. Zehner,Gary L. Oppliger. 2007. Use of Rapid Temperature Measurements at a 2-Meter Depth to Augment Deeper Temperature Gradient Drilling. In:

6

2-M Probe At Columbus Salt Marsh Area (Kratt, Et Al., 2010) | Open Energy  

Open Energy Info (EERE)

2-M Probe At Columbus Salt Marsh Area (Kratt, Et Al., 2010) 2-M Probe At Columbus Salt Marsh Area (Kratt, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Columbus Salt Marsh Area (Kratt, Et Al., 2010) Exploration Activity Details Location Columbus Salt Marsh Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes At Columbus Salt Marsh, Nevada, additional 2m measurements better defined the shape of a blind, shallow thermal anomaly; also at this location deeper temperature measurements were used to develop a near-surface temperature gradient. References Christopher Kratt, Chris Sladek, Mark Coolbaugh (2010) Boom And Bust With The Latest 2M Temperature Surveys- Dead Horse Wells, Hawthorne Army Depot, Terraced Hills, And Other Areas In Nevada

7

2-M Probe At Teels Marsh Area (Shevenell, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

2-M Probe At Teels Marsh Area (Shevenell, Et Al., 2008) 2-M Probe At Teels Marsh Area (Shevenell, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Teels Marsh Area (Shevenell, Et Al., 2008) Exploration Activity Details Location Teels Marsh Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes Coolbaugh et al. (2007), Sladek et al. (2007), and Kratt, et al. (2008, this volume) describe a shallow temperature survey system in which temperatures can be measured quickly and inexpensively at 2 m depths. This system was tested at Desert Queen based on its structural setting and availability of thermal gradient well data obtained in the 1970's from which to make thermal anomaly comparisons. The system was subsequently used

8

2-M Probe At Alum Area (Kratt, Et Al., 2010) | Open Energy Information  

Open Energy Info (EERE)

Alum Area (Kratt, Et Al., 2010) Alum Area (Kratt, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Alum Geothermal Area (Kratt, Et Al., 2010) Exploration Activity Details Location Alum Geothermal Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes More than 100 new 2m measurements at Astor Pass, Nevada resolved additional details of near-surface thermal outflow in this blind geothermal system References Christopher Kratt, Chris Sladek, Mark Coolbaugh (2010) Boom And Bust With The Latest 2M Temperature Surveys- Dead Horse Wells, Hawthorne Army Depot, Terraced Hills, And Other Areas In Nevada Retrieved from "http://en.openei.org/w/index.php?title=2-M_Probe_At_Alum_Area_(Kratt,_Et_Al.,_2010)&oldid=402957"

9

2-M Probe At Astor Pass Area (Kratt, Et Al., 2010) | Open Energy  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » 2-M Probe At Astor Pass Area (Kratt, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Astor Pass Area (Kratt, Et Al., 2010) Exploration Activity Details Location Astor Pass Geothermal Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes More than 100 new 2m measurements at Astor Pass, Nevada resolved additional details of near-surface thermal outflow in this blind geothermal system References Christopher Kratt, Chris Sladek, Mark Coolbaugh (2010) Boom And Bust With The Latest 2M Temperature Surveys- Dead Horse Wells, Hawthorne Army

10

2-M Probe At Gabbs Alkali Flat Area (Kratt, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

2-M Probe At Gabbs Alkali Flat Area (Kratt, Et Al., 2008) 2-M Probe At Gabbs Alkali Flat Area (Kratt, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Gabbs Alkali Flat Area (Kratt, Et Al., 2008) Exploration Activity Details Location Gabbs Alkali Flat Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes More than 100 2-meter-deep temperature measurements were made during two separate surveys that took place in December 2007 and April 2008 (Figure 5). The area covered was 16 km in length parallel to the range front and a maximum of nearly 5 km out into the valley. The highest recorded temperature of 37°C was obtained approximately 100 m upslope from Rawhide hot springs. Near these springs, temperatures rapidly cool towards the

11

2-M Probe Survey At Coso Geothermal Area (2007) | Open Energy Information  

Open Energy Info (EERE)

2-M Probe Survey At Coso Geothermal Area (2007) 2-M Probe Survey At Coso Geothermal Area (2007) Exploration Activity Details Location Coso Geothermal Area Exploration Technique 2-M Probe Survey Activity Date 2007 Usefulness useful regional reconnaissance DOE-funding Unknown Exploration Basis Analyze if coupling remote sensing and field data is effective for determining geothermal areas using 1-M probe Notes The field data include subsurface temperature measured with temperature probes at depths down to 1 m, surface temperatures recorded with a hand-held infrared camera and an infrared thermometer, reflectance of contrasting surfaces measured with a hand-held spectroradiometer for the purpose of estimating the albedo effect, and radiosonde atmospheric profiles of temperature, water vapor, and pressure in order to apply

12

2-M Probe Survey At Salt Wells Area (Coolbaugh, Et Al., 2006) | Open Energy  

Open Energy Info (EERE)

Salt Wells Area (Coolbaugh, Et Al., 2006) Salt Wells Area (Coolbaugh, Et Al., 2006) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe Survey At Salt Wells Area (Coolbaugh, Et Al., 2006) Exploration Activity Details Location Salt Wells Geothermal Area Exploration Technique 2-M Probe Survey Activity Date 2005 - 2006 Usefulness useful DOE-funding Unknown Exploration Basis Geochemical water sampling, mineral distribution mapping, and shallow (30 cm) temperature probe measurements were conducted to expand on a previous field mapping study of surface geothermal features at Salt Wells, in order to evaluate the relationship between these features and structures that control geothermal fluid flow. Notes This study used a modified version of the 2 m temperature probe survey,

13

2-M Probe Survey At Coso Geothermal Area (1979) | Open Energy Information  

Open Energy Info (EERE)

9) 9) Exploration Activity Details Location Coso Geothermal Area Exploration Technique 2-M Probe Survey Activity Date 1979 Usefulness useful DOE-funding Unknown Exploration Basis Correct previously analyzed 2-m probe data Notes Corrected 2-m temperature anomaly at Coso was compared with a low altitude aeromagnetic anomaly and an anomaly outlined by electrical resistivity methods obtained independently. Preliminary tests were made with a simple thermal conductivity probe demonstrating the feasibility of measuring soil thermal diffusivity at the time the 2-m temperatures are recorded. References Leschack, L. A.; Lewis, J. E.; Chang, D. C.; Lewellen, R. I.; O'Hara, N.W. (1 March 1979) Rapid reconnaissance of geothermal prospects using shallow temperature surveys. Second technical report

14

2-M Probe At Rhodes Marsh Area (Shevenell, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

2-M Probe At Rhodes Marsh Area (Shevenell, Et Al., 2-M Probe At Rhodes Marsh Area (Shevenell, Et Al., 2008) Exploration Activity Details Location Rhodes Marsh Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes Coolbaugh et al. (2007), Sladek et al. (2007), and Kratt, et al. (2008, this volume) describe a shallow temperature survey system in which temperatures can be measured quickly and inexpensively at 2 m depths. This system was tested at Desert Queen based on its structural setting and availability of thermal gradient well data obtained in the 1970's from which to make thermal anomaly comparisons. The system was subsequently used at Tungsten Mountain and Teels and Rhodes Marshes to help locate blind geothermal systems. References Lisa Shevenell, Mark Coolbaugh, Chris Sladek, Rick Zehner, Chris

15

2-M Probe Survey At Salt Wells Area (Skord, Et Al., 2011) | Open Energy  

Open Energy Info (EERE)

Page Page Edit History Facebook icon Twitter icon » 2-M Probe Survey At Salt Wells Area (Skord, Et Al., 2011) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe Survey At Salt Wells Area (Skord, Et Al., 2011) Exploration Activity Details Location Salt Wells Geothermal Area Exploration Technique 2-M Probe Survey Activity Date 2011 - 2011 Usefulness useful DOE-funding Unknown Exploration Basis Two-meter temperature surveys were conducted at Salt Wells Basin from February to May 2011, with the goal of distinguishing and mapping zones of upwelling and outflow of hydrothermal fluids. The study also tests the ability of shallow temperature survey methods recently refined by the Great Basin Center for Geothermal Energy to evaluate the structural controls of

16

2-M Probe At Hawthorne Area (Kratt, Et Al., 2010) | Open Energy Information  

Open Energy Info (EERE)

Kratt, Et Al., 2010) Kratt, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Hawthorne Area (Kratt, Et Al., 2010) Exploration Activity Details Location Hawthorne Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes Shallow 2m surveys were first conducted at Hawthorne by Trexler et al. (1982b), who were among the earliest researchers to employ 2m surveys on a systematic basis in the Great Basin. Their work identified two shallow thermal anomalies, one of them located west of the city of Hawthorne at the base of the Wassuk Range, and the other in the "Southeast Magazine" area, south of state highway 50 and southeast of Hawthorne (anomalies A and B on Figure 3). Subsequent drilling verified the existence of shallow thermal

17

2-M Probe At The Needles Area (Kratt, Et Al., 2010) | Open Energy  

Open Energy Info (EERE)

Kratt, Et Al., 2010) Kratt, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At The Needles Area (Kratt, Et Al., 2010) Exploration Activity Details Location The Needles Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes "A new geothermal system was identified from 2m measurements at Emerson Pass on the Pyramid Lake Paiute Reservation in Washoe County, Nevada. This narrow NNW-trending valley contains several faults that appear to transfer dextral strain from NW-striking faults in the northern Walker Lane to N-NNW striking normal faults in the Smoke Creek Desert. The thermal anomaly extends for at least 3 km parallel to the range-front fault that defines the east side of the Emerson Pass valley. A maximum temperature of 35°C

18

2-M Probe At Salt Wells Area (Shevenell, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

Wells Area (Shevenell, Et Al., 2008) Wells Area (Shevenell, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Salt Wells Area (Shevenell, Et Al., 2008) Exploration Activity Details Location Salt Wells Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes One additional method may be used in the future to locate blind geothermal systems. Several thousand shallow (12") temperature measurements were made for a study conducted at Salt Wells in collaboration with Amp Resources (prior to their being acquired by Enel). After a strong, structurally controlled thermal anomaly was identified on the north end of the study area, a 2 m hole was dug into a playa in which the water temperature at the bottom of the hole was 84.8°C. Water was allowed to collect in the bottom

19

2-M Probe At Winnemucca Dry Lake Area (Kratt, Et Al., 2010) | Open Energy  

Open Energy Info (EERE)

Winnemucca Dry Lake Area (Kratt, Et Al., 2010) Winnemucca Dry Lake Area (Kratt, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Winnemucca Dry Lake Area (Kratt, Et Al., 2010) Exploration Activity Details Location Winnemucca Dry Lake Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes More than 20 2-meter-deep temperatures were measured adjacent to these selected towers in a two-day period of November 2007. No obvious zones of temperature anomalies were detected. We were unable to clearly ascertain the background temperature but the spatial distribution of the data did not point to a broader zone of thermal highs. At both of these tufa localities, the process of inserting 2-meterlong probes into the ground was

20

2-M Probe Survey At Coso Geothermal Area (1977) | Open Energy Information  

Open Energy Info (EERE)

7) 7) Exploration Activity Details Location Coso Geothermal Area Exploration Technique 2-M Probe Survey Activity Date 1977 Usefulness useful DOE-funding Unknown Exploration Basis Compare directly shallow temperature results with standard geothermal exploration techniques. Notes Shallow soil temperature data (2m) were collected at 102 sites at Coso. Close geometrical similarity between the shallow soil temperature has been observed with the 30-m contour data for Coso using computer program. References Leschack, L. A.; Lewis, J. E.; Chang, D. C. (1 December 1977) Rapid reconnaissance of geothermal prospects using shallow temperature surveys. Semi-annual technical report Retrieved from "http://en.openei.org/w/index.php?title=2-M_Probe_Survey_At_Coso_Geothermal_Area_(1977)&oldid=47367

Note: This page contains sample records for the topic "activity 2-m probe" 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

2-M Probe At Rhodes Marsh Area (Kratt, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

Rhodes Marsh Area (Kratt, Et Al., 2008) Rhodes Marsh Area (Kratt, Et Al., 2008) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Rhodes Marsh Area (Kratt, Et Al., 2008) Exploration Activity Details Location Rhodes Marsh Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes Two-meter survey work at Rhodes Marsh began in December of 2007 followed by more recent activity in May of 2008. More than 65 2-meter-deep temperatures have been measured over a distance of 7 km (Figure 4). At the foot of the Pilot Mountains these data roughly parallel the southern end of Benton Springs fault. Anomalous temperatures up to 26.7°C occur adjacent to opalized sands and reveal a significant NW elongate temperature anomaly more than 5 km long. Cold shallow groundwater at the playa's eastern margin

22

2-M Probe At Dead Horse Wells Area (Kratt, Et Al., 2010) | Open Energy  

Open Energy Info (EERE)

Dead Horse Wells Area (Kratt, Et Al., 2010) Dead Horse Wells Area (Kratt, Et Al., 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: 2-M Probe At Dead Horse Wells Area (Kratt, Et Al., 2010) Exploration Activity Details Location Dead Horse Wells Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes Background temperatures between 14.7°C and 17.7°C were encountered in the playa and are likely influenced by near-surface groundwater, as evidenced by abundant greasewood. In comparison, what we interpret as background, or near-background temperatures in the alluvial fan environment averaged about 20°C. The2-meter anomaly is characterized by temperatures up to 37°C (99°F) measured over a distance of more than 1.5 km. Lower, yet still

23

2-M Probe At Tungsten Mountain Area (Shevenell, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

Shevenell, Et Shevenell, Et Al., 2008) Exploration Activity Details Location Tungsten Mountain Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes Coolbaugh et al. (2007), Sladek et al. (2007), and Kratt, et al. (2008, this volume) describe a shallow temperature survey system in which temperatures can be measured quickly and inexpensively at 2 m depths. This system was tested at Desert Queen based on its structural setting and availability of thermal gradient well data obtained in the 1970's from which to make thermal anomaly comparisons. The system was subsequently used at Tungsten Mountain and Teels and Rhodes Marshes to help locate blind geothermal systems. Of the new, blind geothermal sites identified through collaboration with the minerals industry, shallow temperature surveys were

24

Independent Activity Report, CH2M Hill Plateau Remediation Company -  

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

Independent Activity Report, CH2M Hill Plateau Remediation Company Independent Activity Report, CH2M Hill Plateau Remediation Company - January 2011 Independent Activity Report, CH2M Hill Plateau Remediation Company - January 2011 January 2011 Review of the CH2M Hill Plateau Remediation Company Unreviewed Safety Question Procedure [ARPT-RL-2011-003] The U.S. Department of Energy Office of Independent Oversight, within the Office of Health, Safety and Security, during a site visit from January 10-14, 2011, presented the results of a technical review of the CH2M Hill Plateau Remediation Company (PRC) Unreviewed Safety Question (USQ) Procedure. Independent Activity Report, CH2M Hill Plateau Remediation Company - January 2011 More Documents & Publications CX-009415: Categorical Exclusion Determination Independent Activity Report, Richland Operations Office - January 2011

25

2-M Probe At Teels Marsh Area (Kratt, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

Teels Marsh Area (Kratt, Et Al., 2008) Teels Marsh Area (Kratt, Et Al., 2008) Exploration Activity Details Location Teels Marsh Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes "An initial 2-meter survey was conducted at Teels Marsh in November and December of 2007. The range bounding Excelsior fault was followed as closely as terrain would allow. The two week effort resulted in over 80 measurements covering a distance greater than 26 km and the identification of two anomalous temperature zones (Figure 2). Temperatures in the northern anomaly reached as high as 26°C while temperatures at the southern anomaly were up to 35°C. These data stand in contrast to background temperatures of approximately 16-18°C. More recently, infill work completed in May 2008

26

2-M Probe At Tungsten Mountain Area (Kratt, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

Kratt, Et Al., Kratt, Et Al., 2008) Exploration Activity Details Location Tungsten Mountain Area Exploration Technique 2-M Probe Activity Date Usefulness useful DOE-funding Unknown Notes "To test if it would have been possible to find the Tungsten Mountain geothermal system with a shallow temperature survey, more than 80 2-meter-deep temperatures were recorded during a two week period in late June and early July, 2007. These measurements spanned an 8-km-long zone parallel to the range front and extended eastward from the range front up to 2 km towards the playa's edge (Figure 1). Two-meter temperatures ranged from 14.0°C up to a maximum of 26.7° C. The higher temperatures correspond to the area of exploration drilling, although anomalously high temperatures extend northeastward beyond the area of drilling. These

27

Millimeter-wave active probe  

DOE Patents (OSTI)

A millimeter-wave active probe for use in injecting signals with frequencies above 50GHz to millimeter-wave and ultrafast devices and integrated circuits including a substrate upon which a frequency multiplier consisting of filter sections and impedance matching sections are fabricated in uniplanar transmission line format. A coaxial input and uniplanar 50 ohm transmission line couple an approximately 20 GHz input signal to a low pass filter which rolls off at approximately 25 GHz. An input impedance matching section couples the energy from the low pass filter to a pair of matched, antiparallel beam lead diodes. These diodes generate odd-numberd harmonics which are coupled out of the diodes by an output impedance matching network and bandpass filter which suppresses the fundamental and third harmonics and selects the fifth harmonic for presentation at an output.

Majidi-Ahy, Gholamreza (Sunnyvale, CA); Bloom, David M. (Portola Valley, CA)

1991-01-01T23:59:59.000Z

28

Regenerable activated bauxite adsorbent alkali monitor probe  

DOE Patents (OSTI)

A regenerable activated bauxite adsorber alkali monitor probe for field applications to provide reliable measurement of alkali-vapor concentration in combustion gas with special emphasis on pressurized fluidized-bed combustion (PFBC) off-gas. More particularly, the invention relates to the development of a easily regenerable bauxite adsorbent for use in a method to accurately determine the alkali-vapor content of PFBC exhaust gases. 6 figs.

Lee, S.H.D.

1992-12-22T23:59:59.000Z

29

Category:Exploration Activities | Open Energy Information  

Open Energy Info (EERE)

Activities Activities Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Category:Exploration Activities Geothermalpower.jpg Looking for the Exploration Activities page? For detailed information on Exploration Activities, click here. Contents: Top - 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Pages in category "Exploration Activities" The following 200 pages are in this category, out of 1,574 total. (previous 200) (next 200) 2 2-M Probe At Alum Area (Kratt, Et Al., 2010) 2-M Probe At Astor Pass Area (Kratt, Et Al., 2010) 2-M Probe At Black Warrior Area (DOE GTP) 2-M Probe At Columbus Salt Marsh Area (Kratt, Et Al., 2010) 2-M Probe At Dead Horse Wells Area (Kratt, Et Al., 2010) 2-M Probe At Desert Peak Area (Sladek, Et Al., 2007) 2-M Probe At Flint Geothermal Area (DOE GTP)

30

Property:ExpActivityDate | Open Energy Information  

Open Energy Info (EERE)

ExpActivityDate ExpActivityDate Jump to: navigation, search Property Name ExpActivityDate Property Type Date Description Exploration Activity Date started or year of activity. Pages using the property "ExpActivityDate" Showing 25 pages using this property. (previous 25) (next 25) 2 2-M Probe At Desert Peak Area (Sladek, Et Al., 2007) + 2007 + 2-M Probe Survey At Coso Geothermal Area (1977) + 1977 + 2-M Probe Survey At Coso Geothermal Area (1979) + 1979 + 2-M Probe Survey At Coso Geothermal Area (2007) + 2007 + 2-M Probe Survey At Salt Wells Area (Coolbaugh, Et Al., 2006) + 2005 + 2-M Probe Survey At Salt Wells Area (Skord, Et Al., 2011) + 2011 + A Acoustic Logs At Coso Geothermal Area (1977) + 1977 + Acoustic Logs At Coso Geothermal Area (2005) + 2005 +

31

A discrete element 3' of human immunodeficiency virus 1 (HIV-1) and HIV-2 mRNA initiation sites mediates transcriptional activation by an HIV trans activator  

SciTech Connect

An important point of regulation in the reproductive growth and latency of the human and simian immunodeficiency viruses (HIV and SIV, respectively) is provided by virally encoded trans-activators (tat), proteins capable of dramatically increasing viral gene expression. The mechanism of this autostimulatory pathway has remained unclear, however, with substantial effects having been reported at the level of either mRNA accumulation, translational efficiency, or both. The authors' previous findings indicated that trans-activation results primarily from induction of RNA levels but could not distinguish between the roles of transcriptional rate, RNA stabilization, and RNA transport in this event. In addition, the boundaries of tat-responding elements, which would be valuable in elucidating the mode of tat action, are not precisely known. In this study, HIV-1 and HIV-2 long terminal repeat-directed expression was characterized by using in an vitro nuclear transcription assay to clarify this mechanism, and a detailed mutational analysis was undertaken to localize precisely the sequences participating in this process. Two key findings were revealed: an increased transcription rate was the primary event in tat-mediated activation of HIV-1 and HIV-2, and trans-activation was impaired by mutations in two regions, the TATA box and sequences between +19 to +42, a region lacking enhancer activity. These results implicate a discrete 3' regulatory element in the transcriptional activation of the HIVs.

Jakobovits, A.; Smith, D.H.; Jakobovits, E.B.; Capon, D.J.

1988-06-01T23:59:59.000Z

32

Pyrethroid Activity-Based Probes for Profiling Cytochrome P450 Activities Associated with Insecticide Interactions  

SciTech Connect

Pyrethroid insecticides are used to control a diverse spectrum of diseases spread by arthropods. We have developed a suite of pyrethroid mimetic activity based probes (PyABPs) to selectively label and identify P450s associated with pyrethroid metabolism. The probes were screened against pyrethroid metabolizing and non-metabolizing mosquito P450s, as well as rodent microsomes to measure labeling specificity, plus CPR and b5 knockout mouse livers to validate P450 activation and establish the role for b5 in probe activation. Using a deltamethrin mimetic PyABP we were able to profile active enzymes in rat liver microsomes and identify pyrethroid metabolizing enzymes in the target tissue. The most reactive enzyme was a P450, CYP2C11, which is known to metabolize deltamethrin. Furthermore, several other pyrethroid metabolizers were identified (CYPs 2C6, 3A4, 2C13 and 2D1) along with related detoxification enzymes, notably UDP-gs 2B1 - 5, suggesting a network of associated pyrethroid metabolizing enzymes, or pyrethrome. Considering the central role that P450s play in metabolizing insecticides, we anticipate that PyABPs will aid the identification and profiling of P450s associated with insecticide pharmacology in a wide range of species, improving understanding of P450-insecticide interactions and aiding the development of new tools for disease control.

Ismail, Hanafy M.; O'Neill, Paul M.; Hong, David; Finn, Robert; Henderson, Colin; Wright, Aaron T.; Cravatt, Benjamin; Hemingway, Janet; Paine, Mark J.

2014-01-18T23:59:59.000Z

33

Advances in studying bioinorganic reaction mechanisms: isotopic probes of activated oxygen  

E-Print Network (OSTI)

Advances in studying bioinorganic reaction mechanisms: isotopic probes of activated oxygen intermediates in metalloenzymes Justine P Roth Metalloenzymes catalyze reactions of molecular oxygen and its reduced forms through the controlled formation of metal- bound, activated oxygen intermediates

Roth, Justine P.

34

Light-Triggered Myosin Activation for Probing Dynamic Cellular Processes  

E-Print Network (OSTI)

Shining light on myosin: The incorporation of a caging group onto the essential phosphoserine residue of myosin by protein semisynthesis enables light-triggered activation of the protein (see picture). Caging eliminates ...

Goguen, Brenda N.

35

Participatory sensing in public spaces: activating urban surfaces with sensor probes  

Science Journals Connector (OSTI)

Recent convergence between low-cost technology, artform and political discourse presents a new design space for enabling public participation and expression. We explore non-experts' use of place-based, modular sensors to activate, author and provoke ... Keywords: participatory sensing, public spaces, urban probes

Stacey Kuznetsov; Eric Paulos

2010-08-01T23:59:59.000Z

36

E-Print Network 3.0 - active oxygen probe Sample Search Results  

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

OXYGEN PROBES FOR RESPIROMETRY S. Marsili Libelli *, C. Barresi... oxygen, ideally the measuring probe should be able to follow DO variations without introducing any... by...

37

SIMS methodology for probing the fate and dispersion of catalytically active molecules  

Science Journals Connector (OSTI)

Abstract Secondary ion mass spectrometry (SIMS) with 520keV A u 400 4 + projectiles operating in event-by-event bombardment/detection mode was applied to investigate pyrolized mixtures of catalyst (vitamin B12) and carbon supports (carbon black). The specimens are alternative cathode materials to platinum for fuel cells. The goal was to understand the effect of temperature on the chemical environment of the catalytically active sites formed on the carbon supports during pyrolysis. The A u 400 4 + projectiles probed the samples one-at-a-time in a stochastic manner and the resulting secondary ions from the individual impacts were recorded separately. The coincidental methodology allows one to compile mass spectra comprising selectively the secondary ions from the impacts on the active sites, extracting the local molecular information of the active sites within a nanodomain (?103nm3). The detection of CoN 4 C x ? suggests Co-N4 be the moiety retained from the pyrolized vitamin B12 in the presence of the carbon black. Variations in the local chemical environment of the active sites as a function of pyrolysis temperature were also observed. Additionally, we could quantify the dispersion of the active sites among the carbon supports, a measure providing a direction for future device optimization.

Chao-Kai Liang; Sun-Tang Chang; Stanislav V. Verkhoturov; Li-Chyong Chen; Kuei-Hsien Chen; Emile A. Schweikert

2014-01-01T23:59:59.000Z

38

Independent Oversight Review, URS CH2M Oak Ridge - June 2013...  

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

URS CH2M Oak Ridge - June 2013 Independent Oversight Review, URS CH2M Oak Ridge - June 2013 June 2013 Review of Oak Ridge Environmental Management Radiological Controls Activity...

39

A Selective Activity-Based Probe for the Papain Family Cysteine Protease Dipeptidyl Peptidase I/Cathepsin C  

E-Print Network (OSTI)

an activity-dependent chemical reaction.9 The choice of a reactive functional group or "warhead" coupled as in intact cells. This probe provides an important new tool for the study of DPPI in a number of human. These structural requirements pose a number of restrictions on the type of warhead that can be applied

Bogyo, Matthew

40

Positron emission tomography probes for imaging immune activation and selected cancers  

DOE Patents (OSTI)

Compounds for use as PET probes and methods for synthesizing and using these, comprising [.sup.18F]D-FAC and other cytosine and adenosine analogs.

Radu, Caius G. (Los Angeles, CA); Witte, Owen N. (Los Angeles, CA); Nair-Gill, Evan David (Los Angeles, CA); Satyamurthy, Nagichettiar (Los Angeles, CA); Shu, Chengyi J. (Los Angeles, CA); Czernin, Johannes (Los Angeles, CA)

2012-01-24T23:59:59.000Z

Note: This page contains sample records for the topic "activity 2-m probe" 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

Enforcement Letter, CH2M Hill Mound, Inc - December 22, 2004...  

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

Inc - December 22, 2004 December 22, 2004 Issued to CH2M Hill Mound, Inc. related to a Radioactive Contamination Event during Remediation Activities at the Miamisburg Closure...

42

The Scanning Theremin Microscope: A Model Scanning Probe Instrument for Hands-On Activities  

Science Journals Connector (OSTI)

(9, 10) However, we decided upon a different approach and worked with scanning probe principles to create a large-scale scanning device, the scanning theremin microscope (SThM). ... The simplest mode of scanning is to move the pantograph to scan the probe across the surface at a fixed height, listening for changes in pitch. ... We present a cascade-based computation scheme that has all of the devices and interconnects required for the one-time computation of an arbitrary logic function. ...

Rebecca C. Quardokus; Natalie A. Wasio; S. Alex Kandel

2013-12-20T23:59:59.000Z

43

Enforcement Letter, CH2M Hill Hanford Group Inc, - September...  

Office of Environmental Management (EM)

CH2M Hill Hanford Group Inc, - September 6, 2007 Enforcement Letter, CH2M Hill Hanford Group Inc, - September 6, 2007 September 6, 2007 Issued to CH2M Hill Hanford Group, Inc.,...

44

Deutsche Telekom and Cinterion Wireless Modules become M2M partners Dec 04, 2009  

E-Print Network (OSTI)

Deutsche Telekom and Cinterion Wireless Modules become M2M partners Dec 04, 2009 · Agreement signed governing cooperation, joint market development, activities and projects Deutsche Telekom AG and Cinterion in Deutsche Telekom's international M2M- strategy", says Rainer Deutschmann, Senior Vice President Mobile

Deutschmann, Rainer

45

Boom And Bust With The Latest 2M Temperature Surveys- Dead Horse Wells,  

Open Energy Info (EERE)

Boom And Bust With The Latest 2M Temperature Surveys- Dead Horse Wells, Boom And Bust With The Latest 2M Temperature Surveys- Dead Horse Wells, Hawthorne Army Depot, Terraced Hills, And Other Areas In Nevada Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Conference Paper: Boom And Bust With The Latest 2M Temperature Surveys- Dead Horse Wells, Hawthorne Army Depot, Terraced Hills, And Other Areas In Nevada Details Activities (7) Areas (7) Regions (0) Abstract: New examples of the use of two-meter temperature (2m) surveys to quickly and inexpensively reveal blind geothermal systems were documented at Dead Horse Wells, the Hawthorne Army Depot, and Emerson Pass, all located in Nevada. In addition, more than 100 new 2m measurements at Astor Pass, Nevada resolved additional details of near-surface thermal outflow in this blind geothermal system. And at Columbus Salt Marsh, Nevada,

46

Cybersecurity Capability Maturity Model (C2M2) Program | Department...  

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

(C2M2) Program The Cybersecurity Capability Maturity Model (C2M2) program is a public-private partnership effort that was established as a result of the Administration's...

47

Quantification of Gordona amarae Strains in Foaming Activated Sludge and Anaerobic Digester Systems with Oligonucleotide Hybridization Probes  

Science Journals Connector (OSTI)

...hierarchic classification system, Actinobacteria...hybridization probes for studies of ruminal microbial...pseudomonads. A taxonomic study. . Stratton H...ammonia-oxidizing bacteria. . Wheeler D. Rule A. . Zheng...microbial ecology studies. . Quantification...anaerobic digester systems with oligonucleotide...

M. Fiorella de los Reyes; Francis L. de los Reyes III; Mark Hernandez; Lutgarde Raskin

1998-07-01T23:59:59.000Z

48

Cybersecurity Capability Maturity Model (C2M2)  

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

The Cybersecurity Capability Maturity Model (C2M2) model, which is designed to be used by any organization to enhance its own cybersecurity capabilities, is publicly available and can be downloaded now. The Energy Department continues to work with public and private partners to support adoption of the C2M2

49

CH2M HILL Plateau Remediation Company | Department of Energy  

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

CH2M HILL Plateau Remediation Company CH2M HILL Plateau Remediation Company CH2M HILL Plateau Remediation Company The Office of Hea1th, Safety and Security's Office of Enforcement and Oversight has evaluated the facts and circumstances of a series of radiological work deficiencies at the Plutonium Finishing Plant (PFP) and the 105 K-East Reactor Facility (105KE Reactor) by CH2M HILL Plateau Remediation Company (CHPRC). The radiological work deficiencies at PFP are documented in the April 29, 2011, Department of Energy Richland Operations Office (DOE-RL) Surveillance Report S-11-SED-CHP~C-PFP-002, Planning and Execution of Radiological Work. S-11-SED-CHPRC-PFP-002 documented four examples where inadequate hazard analysis resulted in airborne radioactivity that exceeded the limits of the controlling radiological work permit.

50

Graphene mode-locked femtosecond laser at 2?m wavelength  

Science Journals Connector (OSTI)

We experimentally demonstrated a passively mode-locked femtosecond laser by using a graphene-based saturable absorber mirror (graphene SAM) in the spectral region of 2?m. The graphene...

Ma, J; Xie, G Q; Lv, P; Gao, W L; Yuan, P; Qian, L J; Yu, H H; Zhang, H J; Wang, J Y; Tang, D Y

2012-01-01T23:59:59.000Z

51

Enforcement Letter, CH2M Hill - October 4, 2004 | Department...  

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

Process Research Unit On October 4, 2004, the U.S. Department of Energy (DOE) issued a nuclear safety Enforcement Letter to CH2M Hill concerning expiration of the company's...

52

Independent Oversight Review, URS CH2M Oak Ridge - June 2013 | Department  

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

URS CH2M Oak Ridge - June 2013 URS CH2M Oak Ridge - June 2013 Independent Oversight Review, URS CH2M Oak Ridge - June 2013 June 2013 Review of Oak Ridge Environmental Management Radiological Controls Activity Level Implementation The purpose of this set of facility specific Independent Oversight targeted reviews is to evaluate the flowdown of occupational radiation protection requirements, as expressed in facility RPPs, to work planning, control, and execution processes, such as radiological work authorizations, including radiological work permits (RWPs) and other technical work documents (TWDs). This targeted review was performed at Oak Ridge during the period of March 3-22, 2013. This report discusses the background, scope, methodology, results, and conclusions of the review, as well as items identified for

53

Property:ExpActivityDateEnd | Open Energy Information  

Open Energy Info (EERE)

ExpActivityDateEnd ExpActivityDateEnd Jump to: navigation, search Property Name ExpActivityDateEnd Property Type Date Description Date or year exploration activity ended. Pages using the property "ExpActivityDateEnd" Showing 25 pages using this property. (previous 25) (next 25) 2 2-M Probe Survey At Salt Wells Area (Coolbaugh, Et Al., 2006) + 2006 + 2-M Probe Survey At Salt Wells Area (Skord, Et Al., 2011) + 2011 + A Aerial Photography At Coso Geothermal Area (1968-1971) + 1971 + C Compound and Elemental Analysis At Salt Wells Area (Coolbaugh, Et Al., 2006) + 2005 + Compound and Elemental Analysis At Salt Wells Area (Shevenell & Garside, 2003) + 2002 + Conceptual Model At Coso Geothermal Area (2005-2007) + 2007 + Controlled Source Frequency-Domain Magnetics At Salt Wells Area (Montgomery, Et Al., 2005) + 2004 +

54

PEG/Ion -Scoring Sheet 1. 0.2 M Sodium Fluoride, 20% PEG 3350  

E-Print Network (OSTI)

3350 23. 0.2 M Ammonium Formate, 20% PEG 3350 24. 0.2 M Lithium Acetate, 20% PEG 3350 25. 0.2 M Acetate, 20% PEG 3350 31. 0.2 M Lithium Sulfate, 20% PEG 3350 32. 0.2 M Magnesium Sulfate, 20% PEG 3350 33 3350 3. 0.2 M Ammonium Fluoride, 20% PEG 3350 4. 0.2 M Lithium Chloride, 20% PEG 3350 5. 0.2 M

Hill, Chris

55

Atom Probe Tomography | EMSL  

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

Atom Probe Tomography Atom Probe Tomography The LEAP 4000 XHR local electrode atom probe tomography instrument enabled the first-ever comprehensive and accurate 3-D chemical...

56

M2M Communications Smart Grid Project | Open Energy Information  

Open Energy Info (EERE)

Communications Smart Grid Project Communications Smart Grid Project Jump to: navigation, search Project Lead M2M Communications Country United States Headquarters Location Boise, Idaho Recovery Act Funding $2,171,710.00 Total Project Value $4,343,421.00 Coverage Area Coverage Map: M2M Communications Smart Grid Project Coordinates 43.6135002°, -116.2034505° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[]}

57

The E2/M1 ratio in {Delta} photoproduction  

SciTech Connect

New high-precision measurements of p({rvec {gamma}}, {pi}) and p({rvec {gamma}}, {gamma}) cross sections and beam asymmetries have been combined with other polarization ratios in a simultaneous analysis of both reactions. The E2/M1 mixing ratio for the n {r_arrow} {Delta} transition extracted from this analysis is EMR = {minus}3.0% {+-} 0.3 (stat+sys) {+-} 0.2 (model).

Hoblit, S. [Brookhaven National Lab., Upton, NY (United States). Physics Dept.]|[Univ. of Virginia, Charlottesville, VA (United States). Dept. of Physics; Blanpied, G. [Univ. of South Carolina, Columbia, SC (United States). Dept. of Physics; Blecher, M. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Physics Dept.] [and others; LEGS Collaboration

1997-10-01T23:59:59.000Z

58

U.S. Department of Energy, Oak Ridge Office and URS/CH2M Oak Ridge, LLC  

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

U.S. Department of Energy, Oak Ridge Office and URS/CH2M Oak Ridge, U.S. Department of Energy, Oak Ridge Office and URS/CH2M Oak Ridge, LLC (UCOR) East Tennessee Technology Park (ETTP) Contract Partnering Agreement U.S. Department of Energy, Oak Ridge Office and URS/CH2M Oak Ridge, LLC (UCOR) East Tennessee Technology Park (ETTP) Contract Partnering Agreement The Partnering Team will complete the cleanup, reindustrialize ETTP and continue Environmental Management (EM) activities currently ongoing at ORNL and Y-12. This work will be accomplished in a safe and quality manner with a goal of completion under budget and ahead of schedule. U.S. Department of Energy, Oak Ridge Office and URS/CH2M Oak Ridge, LLC (UCOR) East Tennessee Technology Park (ETTP) Contract Partnering Agreement More Documents & Publications Contractor Fee Payments - Oak Ridge Operations

59

DOE Cites CH2M-Washington Group Idaho for Price-Anderson Violations |  

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

M-Washington Group Idaho for Price-Anderson Violations M-Washington Group Idaho for Price-Anderson Violations DOE Cites CH2M-Washington Group Idaho for Price-Anderson Violations June 14, 2007 - 1:40pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) today notified CH2M-Washington Group Idaho (CWI) that it will fine the company $55,000 for violations of the Department's nuclear safety requirements. CWI is the prime contractor responsible for managing the Idaho Cleanup Project at the Idaho National Laboratory site. The Preliminary Notice of Violation (PNOV) cites violations associated with radiation safety and quality improvement deficiencies identified during a DOE Idaho Operations Office May 2006 assessment of radioactive waste processing activities at the Accelerated Retrieval Project (ARP). The

60

Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc - EA-2005-01  

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

Inc - Inc - EA-2005-01 Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc - EA-2005-01 March 10, 2005 Preliminary Notice of Violation issued to CH2M Hill Hanford Group, Inc., related to Radiological and Operational Events at the Hanford Tank Farms This letter refers to the recent investigation by the Department of Energy's (DOE) Office of Price-Anderson Enforcement (OE) at the Hanford Tank Farms of four radiological and operational events occurring during 2003 and 2004. The events included (1) the June 2003 multiple personnel contamination event at the [ ]; (2) the November 2003 Technical Safety Requirement violation during a cross-site waste transfer; (3) the November 2003 valve positioning error during S-112 waste retrieval operations; and (4) the July 2004 extremity exposure during hermocouple removal activities.

Note: This page contains sample records for the topic "activity 2-m probe" 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

Special Report Order, CH2M Hill Hanford Group, Inc. - October...  

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

CH2M Hill Hanford Group, Inc. - October 22, 2001 Special Report Order, CH2M Hill Hanford Group, Inc. - October 22, 2001 October 22, 2001 Special Report Order ssued to CH2M Hill...

62

The E2/M1 ratio in {Delta} photoproduction  

SciTech Connect

The properties of the transition from the nucleon to the {Delta}(1232) serve as a benchmark for models of nucleon structure. To first order, N {r_arrow} {Delta} photo-excitation is dominated by a simple M1 quark spin-flip transition. At higher order, small L = 2 components in the N and {Delta} wavefunctions allow this excitation to proceed via an electric quadrupole transition. Since Nucleon models differ greatly on the mechanisms used to generate these L = 2 components,, the ratio of E2/M1 transitions (EMR) provides a sensitive test for structure models. Here, new high-precision measurements of p({rvec {gamma}}, {pi}) and p({rvec {gamma}}, {gamma}) cross sections and beam asymmetries have been combined with other polarization ratios in a simultaneous analysis of both reactions. Compton scattering has provided two important new constraints on the photo-pion amplitude. The E2/M1 mixing ratio for the N {r_arrow} {Delta} transition extracted from this analysis is EMR = {minus}3.0% {+-} 0.3 (stat+sys) {+-} 0.2 (model).

Sandorfi, A.M. [Brookhaven National Lab., Upton, NY (United States). Physics Dept.; Blanpied, G. [Univ. of South Carolina, Columbia, SC (United States). Dept. of Physics; Blecher, M. [Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States). Physics Dept.] [and others; LEGS Collaboration

1997-08-01T23:59:59.000Z

63

The ASTRI SST-2M Prototype: Structure and Mirror  

E-Print Network (OSTI)

The next generation of IACT (Imaging Atmospheric Cherenkov Telescope) will explore the uppermost end of the VHE (Very High Energy) domain up to about few hundreds of TeV with unprecedented sensibility, angular resolution and imaging quality. To this end, INAF (Italian National Institute of Astrophysics) is currently developing a scientific and technological telescope prototype for the implementation of the CTA (Cherenkov Telescope Array) observatory. ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana) foresees the full design, development, installation and calibration of a Small Size 4 meter class Telescope. The telescope, named SST-2M, is based on an aplanatic, wide field, double reflection optical layout in a Schwarzschild-Couder configuration. In this paper we report about the technological solutions adopted for the telescope and for the mirrors. In particular the structural and electro-mechanical design of the telescope and the results on the optical performance derived after the development ...

Canestrari, Rodolfo; Fiorini, Mauro; Giro, Enrico; La Palombara, Nicola; Pareschi, Giovanni; Stringhetti, Luca; Tosti, Gino; Vercellone, Stefano; Martelli, Francesco; Parodi, Giancarlo; Rossettini, Pierfrancesco; Tomelleri, Raffaele

2013-01-01T23:59:59.000Z

64

Phenylenediamine-Based FeNx/C Catalyst with High Activity for Oxygen Reduction in Acid Medium and Its Active-Site Probing  

Science Journals Connector (OSTI)

(2) Among NPM catalysts, FeNx/C catalyst is the most promising candidate because it exhibits considerable ORR activity in acid medium, thus compatible with strong acidic environment of Nafion-based PEMFC that is industrially more mature than alkaline membrane fuel cell. ... Fe-based cathode catalysts are promising contenders, but their power density has been low compared with Pt-based cathodes, largely due to poor mass-transport properties. ... The most active materials in the group catalyze the ORR at potentials within ~60 mV of that delivered by state-of-the-art carbon-supported platinum, combining their high activity with remarkable performance stability for non-precious metal catalysts (700 h at a fuel cell voltage of 0.4 V) as well as excellent four-electron selectivity (hydrogen peroxide yield <1.0%). ...

Qiang Wang; Zhi-You Zhou; Yu-Jiao Lai; Yong You; Jian-Guo Liu; Xia-Ling Wu; Ephrem Terefe; Chi Chen; Lin Song; Muhammad Rauf; Na Tian; Shi-Gang Sun

2014-07-17T23:59:59.000Z

65

Evaluation of autotrophic growth of ammonia-oxidizers associated with granular activated carbon used for drinking water purification byDNA-stable isotope probing  

Science Journals Connector (OSTI)

Abstract Nitrification is an important biological function of granular activated carbon (GAC) used in advanced drinking water purification processes. Newly discovered ammonia-oxidizing archaea (AOA) have challenged the traditional understanding of ammonia oxidation, which considered ammonia-oxidizing bacteria (AOB) as the sole ammonia-oxidizers. Previous studies demonstrated the predominance of AOA on GAC, but the contributions of AOA and AOB to ammonia oxidation remain unclear. In the present study, DNA-stable isotope probing (DNA-SIP) was used to investigate the autotrophic growth of AOA and AOB associated with GAC at two different ammonium concentrations (0.14mgN/L and 1.4mgN/L). GAC samples collected from three full-scale drinking water purification plants in Tokyo, Japan, had different abundance of AOA and AOB. These samples were fed continuously with ammonium and 13C-bicarbonate for 14 days. The DNA-SIP analysis demonstrated that only AOA assimilated 13C-bicarbonate at low ammonium concentration, whereas AOA and AOB exhibited autotrophic growth at high ammonium concentration. This indicates that a lower ammonium concentration is preferable for AOA growth. Since AOA could not grow without ammonium, their autotrophic growth was coupled with ammonia oxidation. Overall, our results point towards an important role of AOA in nitrification in GAC filters treating low concentration of ammonium.

Jia Niu; Ikuro Kasuga; Futoshi Kurisu; Hiroaki Furumai; Takaaki Shigeeda

2013-01-01T23:59:59.000Z

66

Characteristics of modified CT injector for JFT-2M  

Science Journals Connector (OSTI)

The HIT-CTI mark II compact toroid (CT) injector employed for the JFT-2M tokamak facility at the Japan Atomic Energy Research Institute (JAERI) has been upgraded to improve injection performance. The nozzle of the mark III injector now has a linear tube in place of the original focus cone to avoid rapid focus and deceleration, and the tapered outer electrode has been replaced with more gentle taper in the compression section in order to facilitate gradual compression. The dependence of CT velocity and electron density on poloidal bias flux and trigger time of CT acceleration have been investigated in the operable range of 70230km/s average CT velocity and electron density of 0.11.0 1022m?3 at an accelerator bank voltage of 25kV. The operation window is broader than that of the mark II injector. Emission of a CT plasmoid from the injector, and transport to the flux conserver as a high-density spheromak magnetic structure have also been confirmed.

N. Fukumoto; H. Ogawa; M. Nagata; T. Uyama; T. Shibata; Y. Kashiwa; Y. Kusama

2004-01-01T23:59:59.000Z

67

The ASTRI SST-2M Prototype: Structure and Mirror  

E-Print Network (OSTI)

The next generation of IACT (Imaging Atmospheric Cherenkov Telescope) will explore the uppermost end of the VHE (Very High Energy) domain up to about few hundreds of TeV with unprecedented sensibility, angular resolution and imaging quality. To this end, INAF (Italian National Institute of Astrophysics) is currently developing a scientific and technological telescope prototype for the implementation of the CTA (Cherenkov Telescope Array) observatory. ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana) foresees the full design, development, installation and calibration of a Small Size 4 meter class Telescope. The telescope, named SST-2M, is based on an aplanatic, wide field, double reflection optical layout in a Schwarzschild-Couder configuration. In this paper we report about the technological solutions adopted for the telescope and for the mirrors. In particular the structural and electro-mechanical design of the telescope and the results on the optical performance derived after the development of a prototype of the segments that will be assembled to form the primary mirror.

Rodolfo Canestrari; Osvaldo Catalano; Mauro Fiorini; Enrico Giro; Nicola La Palombara; Giovanni Pareschi; Luca Stringhetti; Gino Tosti; Stefano Vercellone; for the ASTRI Collaboration; Francesco Martelli; Giancarlo Parodi; Pierfrancesco Rossettini; Raffaele Tomelleri

2013-07-18T23:59:59.000Z

68

Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc...  

Office of Environmental Management (EM)

3-06 Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc. - EA-2003-06 August 29, 2003 Issued to CH2M Hill Hanford Group, Inc., related to Quality Assurance Issues at the...

69

Enforcement Letter, CH2M Hill Hanford Group, Inc. - April 24...  

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

Inc. - April 24, 2001 Enforcement Letter, CH2M Hill Hanford Group, Inc. - April 24, 2001 April 24, 2001 Issued to CH2M Hill Hanford Group, Inc., related to Nuclear Safety...

70

Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc...  

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

Inc - EA-2005-01 Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc - EA-2005-01 March 10, 2005 Issued to CH2M Hill Hanford Group, Inc., related to Radiological and...

71

Voluntary Protection Program Onsite Review, CH2M HILL B&W West...  

Office of Environmental Management (EM)

CH2M HILL B&W West Valley LLC, West Valley Demonstration Project - October 2013 Voluntary Protection Program Onsite Review, CH2M HILL B&W West Valley LLC, West Valley Demonstration...

72

Enforcement Letter, CH2M Oak Ridge, LLC - SEL-2012-01 | Department...  

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

Oak Ridge, LLC - SEL-2012-01 Enforcement Letter, CH2M Oak Ridge, LLC - SEL-2012-01 May 4, 2012 Issued to URS CH2M Oak Ridge, LLC, related to a Security Incident involving the...

73

Use of the NIST Cybersecurity Framework & DOE C2M2 | Department...  

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

Use of the NIST Cybersecurity Framework & DOE C2M2 Use of the NIST Cybersecurity Framework & DOE C2M2 Recognizing that the national and economic security of the United States...

74

Hydrodynamic ultrasonic probe  

DOE Patents (OSTI)

An improved probe for in-service ultrasonic inspection of long lengths of a workpiece, such as small diameter tubing from the interior. The improved probe utilizes a conventional transducer or transducers configured to inspect the tubing for flaws and/or wall thickness variations. The probe utilizes a hydraulic technique, in place of the conventional mechanical guides or bushings, which allows the probe to move rectilinearly or rotationally while preventing cocking thereof in the tube and provides damping vibration of the probe. The probe thus has lower friction and higher inspection speed than presently known probes.

Day, Robert A. (Livermore, CA); Conti, Armond E. (San Jose, CA)

1980-01-01T23:59:59.000Z

75

Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc.- EA-2006-06  

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

Issued to CH2M Hill Hanford Group, Inc., related to Radiological Contamination Events at the Hanford Site Tank Farms

76

MagLab Audio Dictionary: Probe  

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

Probe? Now Playing: What's a Probe? Enable Javascript and Flash to stream the Magnet Minute Greg Boebinger Associated Links Meet the Probes What's a Probe? Probe Development for...

77

U.S. Department of Energy, Richland Operations Office And CH2M HILL Plateau  

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

CH2M HILL CH2M HILL Plateau Remediation Company Partnering Charter For Partnering Performance Agreement U.S. Department of Energy, Richland Operations Office And CH2M HILL Plateau Remediation Company Partnering Charter For Partnering Performance Agreement The U.S. Department of Energy (DOE) Richland Operations Office (DOE-RL) and CH2M HILL Plateau Remediation Company (CHPRC) are committed to continuous improvement and will utilize principles of the DOE Environmental Management (DOE-EM) Partnering Policy to enhance teaming to further execute the Plateau Remediation Contract. U.S. Department of Energy, Richland Operations Office And CH2M HILL Plateau Remediation Company Partnering Charter For Partnering Performance Agreement More Documents & Publications CH2M HILL Plateau Remediation Company

78

Department of Justice: CH2M Hill Hanford Group Inc. Admits Criminal  

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

Department of Justice: CH2M Hill Hanford Group Inc. Admits Criminal Department of Justice: CH2M Hill Hanford Group Inc. Admits Criminal Conduct, Parent Company Agrees to Cooperate in Ongoing Investigation and Pay $18.5 Million to Resolve Civil and Criminal Allegations Department of Justice: CH2M Hill Hanford Group Inc. Admits Criminal Conduct, Parent Company Agrees to Cooperate in Ongoing Investigation and Pay $18.5 Million to Resolve Civil and Criminal Allegations March 7, 2013 - 12:00pm Addthis The Justice Department, in conjunction with the U.S. Attorney's Office for the Eastern District of Washington, announced today that Colorado-based CH2M Hill Hanford Group Inc. (CHG) and its parent company, CH2M Hill Companies Ltd. (CH2M Hill) have agreed that CHG committed federal criminal violations, defrauding the public by engaging in years of widespread time

79

Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2)  

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

Electricity Subsector Cybersecurity Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2) Program Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2) Program Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2) Program The Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2) program is a public-private partnership effort that was established as a result of the administration's efforts to improve electricity subsector cybersecurity capabilities, and to understand the cybersecurity posture of the grid. The ES-C2M2 program comprises a maturity model, an evaluation tool, and DOE facilitated self-evaluations. The ES-C2M2 maturity model provides a mechanism to evaluate, prioritize, and improve cybersecurity capabilities. The model is a common set of

80

DOE Selects CH2M Hill Plateau Remediation Company for Plateau Remediation  

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

CH2M Hill Plateau Remediation Company for Plateau CH2M Hill Plateau Remediation Company for Plateau Remediation Contract at its Hanford Site DOE Selects CH2M Hill Plateau Remediation Company for Plateau Remediation Contract at its Hanford Site June 19, 2008 - 1:29pm Addthis WASHINGTON, DC - The U.S. Department of Energy (DOE) today announced that CH2M Hill Plateau Remediation Company has been selected as the plateau remediation contractor for DOE's Hanford Site in southeastern Washington State. The contract is a cost-plus award-fee contract valued at approximately $4.5 billion over ten years (a five-year base period with the option to extend it for another five years). CH2M Hill Plateau Remediation Company is a limited liability company formed by CH2M Hill Constructors, Inc. The team also includes AREVA Federal

Note: This page contains sample records for the topic "activity 2-m probe" 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

Center for Mesoscale Transport Properties (m2M) | U.S. DOE Office...  

Office of Science (SC) Website

from molecular to mesoscale (m2m); to minimize heat and maximize work of electrical energy storage devices. Research Topics energy storage (including batteries and...

82

Consent Order, CH2M-WG Idaho, LLC- WCO-2011-01  

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

Issued to CH2M-WG Idaho, LLC related to a Hoisting Incident that occurred at the Sodium Bearing Waste Treatment Project at the Idaho National Laboratory

83

Consent Order, CH2M Hill Hanford Group, Inc.- EA-2000-09  

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

Issued to CH2M Hill Hanford Group, Inc., related to Quality Problems at the Hanford Site Tank Farms, (EA-2000-09)

84

EERE Announces up to $2M for Clean Energy Supply Chain and Manufacturi...  

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

Clean Energy Supply Chain and Manufacturing Competitiveness Analysis for Hydrogen and Fuel Cell Technologies EERE Announces up to 2M for Clean Energy Supply Chain and...

85

Preliminary Notice of Violation, CH2M HILL Hanford Group, Inc.- NEA-2008-02  

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

Issued to CH2M Hill Hanford Group, Inc., related to a Radioactive Waste Spill at the Hanford Site Tank Farms

86

Dexamethasone Destabilizes Cyclooxygenase 2 mRNA by Inhibiting Mitogen-Activated Protein Kinase p38  

Science Journals Connector (OSTI)

...each figure. Lysates were passed through Shredder columns (Qiagen) and stored frozen at...cells were prepared from the buffy coat fraction of a unit of blood from a single donor...investigated. In HeLa-TO cells treated with UV light, in another HeLa cell line stimulated...

Marina Lasa; Matthew Brook; Jeremy Saklatvala; Andrew R. Clark

2001-02-01T23:59:59.000Z

87

Consent Order, CH2M Hill Hanford Group, Inc. - EA-2000-09 | Department of  

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

M Hill Hanford Group, Inc. - EA-2000-09 M Hill Hanford Group, Inc. - EA-2000-09 Consent Order, CH2M Hill Hanford Group, Inc. - EA-2000-09 July 25, 2000 Price-Anderson Enforcement Consent Order issued to CH2M Hill Hanford Group, Inc., related to Quality Problems at the Hanford Site Tank Farms, (EA-2000-09) This letter refers to the Department of Energy's (DOE) evaluation of an internal investigation conducted by CH2M Hill Group, Inc. (CHG) in February 2000. The investigation examined the facts and circumstances surrounding quality problems with the procurement of safety class piping for the W-314 Project at the Tank Farm Waste Remediation System. Consent Order, CH2M Hill Hanford Group, Inc. - EA-2000-09 More Documents & Publications Consent Order, Fluor Federal Services - EA-2000-10 Special Report Order, CH2M Hill Hanford Group, Inc. - October 22, 2001

88

Enforcement Letter, CH2M Hill Hanford Group, Inc. - April 24, 2001 |  

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

CH2M Hill Hanford Group, Inc. - April 24, 2001 CH2M Hill Hanford Group, Inc. - April 24, 2001 Enforcement Letter, CH2M Hill Hanford Group, Inc. - April 24, 2001 April 24, 2001 Enforcement Letter issued to CH2M Hill Hanford Group, Inc., related to Nuclear Safety Management at the Hanford Site Tank Farms This letter refers to a recent investigation by the Department of Energy (DOE), regarding potential noncompliances with the requirements of 10 CFR 830, "Nuclear Safety Management," occurring at the Hanford Tank Farms. The investigation reviewed three issues that were reported into the Noncompliance Tracking System (NTS) by CH2M Hill Hanford Group, Inc. Two of the NTS reports involve the failure to perform the Technical Safety Requirement (TSR) for [ ] gas monitoring. The initial potential noncompliance occurred in January 2000, in which a Zip Cord was installed

89

Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc. - EA-2003-06  

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

CH2M Hill Hanford Group, Inc. - CH2M Hill Hanford Group, Inc. - EA-2003-06 Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc. - EA-2003-06 August 29, 2003 Preliminary Notice of Violation issued to CH2M Hill Hanford Group, Inc., related to Quality Assurance Issues at the Hanford Site Tank Farms This letter refers to the Department of Energy's Office of Price-Anderson Enforcement (OE) investigation of the facts and circumstances concerning quality assurance issues affecting nuclear safety at the Hanford Tank Farms. These issues involve the inadvertent deenergization of annulus leak detectors, dilution tank overfills, and dome loading control, over the period August 2002 to November 2002. Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc. - EA-2003-06 More Documents & Publications

90

Independent Oversight Review, Hanford Site CH2M Hill Plateau Remediation  

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

Site CH2M Hill Plateau Site CH2M Hill Plateau Remediation Company - November 2012 Independent Oversight Review, Hanford Site CH2M Hill Plateau Remediation Company - November 2012 November 2012 Review of the Hanford Site CH2M Hill Plateau Remediation Company Implementation Verification Review Processes This report documents the independent review of implementation verification review (IVR) processes at the Hanford Site CH2M Hill Plateau Remediation Company that were conducted by the Office of Enforcement and Oversight (Independent Oversight), which is within the U.S. Department of Energy (DOE) Office of Health, Safety and Security (HSS). The onsite review was performed by the HSS Office of Safety and Emergency Management Evaluations from August 13 to17, 2012. The objective of this assessment was to evaluate

91

Special Report Order, CH2M Hill Hanford Group, Inc. - October 22, 2001 |  

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

CH2M Hill Hanford Group, Inc. - October 22, CH2M Hill Hanford Group, Inc. - October 22, 2001 Special Report Order, CH2M Hill Hanford Group, Inc. - October 22, 2001 October 22, 2001 Special Report Order ssued to CH2M Hill Hanford Group, Inc., related to Multiple Nuclear Safety Issues at the Hanford Site On September 18, 2001, the Office of Price-Anderson Enforcement (OE) in coordination with the DOE Office of River Protection (ORP) conducted a review of the actions taken by CH2M Hill Hanford Group (CHG) in response to an Enforcement Letter dated April 24, 2001. This Enforcement Letter referenced three Noncompliance Tracking System (NTS) reports submitted by CHG which collectively suggested weaknesses in your nuclear safety operations related to (1) corrective action management, (2) worker training

92

U.S. Department of Energy, Richland Operations Office And CH2M HILL Plateau  

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

U.S. Department of Energy, Richland Operations Office And CH2M HILL U.S. Department of Energy, Richland Operations Office And CH2M HILL Plateau Remediation Company Partnering Charter For Partnering Performance Agreement U.S. Department of Energy, Richland Operations Office And CH2M HILL Plateau Remediation Company Partnering Charter For Partnering Performance Agreement The U.S. Department of Energy (DOE) Richland Operations Office (DOE-RL) and CH2M HILL Plateau Remediation Company (CHPRC) are committed to continuous improvement and will utilize principles of the DOE Environmental Management (DOE-EM) Partnering Policy to enhance teaming to further execute the Plateau Remediation Contract. U.S. Department of Energy, Richland Operations Office And CH2M HILL Plateau Remediation Company Partnering Charter For Partnering Performance Agreement

93

High temperature probe  

DOE Patents (OSTI)

A high temperature probe for sampling, for example, smokestack fumes, and is able to withstand temperatures of 3000.degree. F. The probe is constructed so as to prevent leakage via the seal by placing the seal inside the water jacket whereby the seal is not exposed to high temperature, which destroys the seal. The sample inlet of the probe is also provided with cooling fins about the area of the seal to provide additional cooling to prevent the seal from being destroyed. Also, a heated jacket is provided for maintaining the temperature of the gas being tested as it passes through the probe. The probe includes pressure sensing means for determining the flow velocity of an efficient being sampled. In addition, thermocouples are located in various places on the probe to monitor the temperature of the gas passing there through.

Swan, Raymond A. (Fremont, CA)

1994-01-01T23:59:59.000Z

94

Type II Transformation -Callus Osmotic Treatment (pre-/post-bombardment) Media N6 1-100-25 +0.2M Mannitol +0.2M sorbitol  

E-Print Network (OSTI)

Type II Transformation - Callus Osmotic Treatment (pre-/post-bombardment) Media N6 1-100-25 +0.2M) Autoclave 25minutes. Cool at 47-50C 45 minutes. Pour into 100x25mm Petri Dishes in hood. 1L=30 plates. Dry

Raizada, Manish N.

95

Probing Mercury's Partnering Preferences  

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

Preferences Probing Mercury's Partnering Preferences Merc.gif Why it Matters: Mercury (Hg) is a major global pollutant arising from both natural and anthropogenic sources....

96

Probing metal solidification nondestructively  

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

Probing metal solidification nondestructively This is the first time that high-energy protons have been used to nondestructively image a large metal sample during melting and...

97

Probing metal solidification nondestructively  

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

Probing metal solidification nondestructively This is the first time that high-energy protons have been used to nondestructively image a large metal sample during melting...

98

Independent Oversight Review, Richland Operations Office and CH2M Hill  

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

and CH2M and CH2M Hill Plateau Remediation Company and Mission Support Alliance - April 2012 Independent Oversight Review, Richland Operations Office and CH2M Hill Plateau Remediation Company and Mission Support Alliance - April 2012 April 2012 Review of Richland Operations Office and CH2M Hill Plateau Remediation Company and Mission Support Alliance Conduct of Operations The purpose of this independent oversight review by the U.S. Department of Energy (DOE) Office of Enforcement and Oversight, within the Office of Health, Safety and Security (HSS), was to observe and shadow1 a DOE Richland Operations Office (DOE-RL) assessment of its contractors at the Hanford Site. The HSS reviewer observed the implementation and effectiveness of the DOE-RL assessment of two of the contractors (CHPRC and

99

Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc. - EA-2003-06  

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

Inc. - Inc. - EA-2003-06 Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc. - EA-2003-06 August 29, 2003 Preliminary Notice of Violation issued to CH2M Hill Hanford Group, Inc., related to Quality Assurance Issues at the Hanford Site Tank Farms This letter refers to the Department of Energy's Office of Price-Anderson Enforcement (OE) investigation of the facts and circumstances concerning quality assurance issues affecting nuclear safety at the Hanford Tank Farms. These issues involve the inadvertent deenergization of annulus leak detectors, dilution tank overfills, and dome loading control, over the period August 2002 to November 2002. Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc. - EA-2003-06 More Documents & Publications Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc. - EA-2006-06

100

Preliminary Notice of Violation, CH2M-Washington Group Idaho, LLC -  

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

CH2M-Washington Group Idaho, LLC - CH2M-Washington Group Idaho, LLC - EA-2007-03 Preliminary Notice of Violation, CH2M-Washington Group Idaho, LLC - EA-2007-03 June 14, 2007 Preliminary Notice of Violation issued to CH2M-Washington Group Idaho, LLC, related to Radiation Protection Program Deficiencies at the Radioactive Waste Management Complex - Accelerated Retrieval Project at the Idaho National Laboratory This letter refers to the investigation of events at the Radioactive Waste Management Complex - Accelerated Retrieval Project (ARP) by the Department of Energy's (DOE) Office of Enforcement. The investigation summary report, Multiple Radiological Protection Program Deficiencies and Safety Culture Concerns, was provided to you in a letter dated February 20, 2007. An enforcement conference to discuss these findings was held on March

Note: This page contains sample records for the topic "activity 2-m probe" 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

Independent Oversight Review, Richland Operations Office and CH2M Hill  

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

Richland Operations Office and CH2M Richland Operations Office and CH2M Hill Plateau Remediation Company and Mission Support Alliance - April 2012 Independent Oversight Review, Richland Operations Office and CH2M Hill Plateau Remediation Company and Mission Support Alliance - April 2012 April 2012 Review of Richland Operations Office and CH2M Hill Plateau Remediation Company and Mission Support Alliance Conduct of Operations The purpose of this independent oversight review by the U.S. Department of Energy (DOE) Office of Enforcement and Oversight, within the Office of Health, Safety and Security (HSS), was to observe and shadow1 a DOE Richland Operations Office (DOE-RL) assessment of its contractors at the Hanford Site. The HSS reviewer observed the implementation and effectiveness of the DOE-RL assessment of two of the contractors (CHPRC and

102

Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc - EA-2005-01  

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

CH2M Hill Hanford Group, Inc - CH2M Hill Hanford Group, Inc - EA-2005-01 Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc - EA-2005-01 March 10, 2005 Preliminary Notice of Violation issued to CH2M Hill Hanford Group, Inc., related to Radiological and Operational Events at the Hanford Tank Farms This letter refers to the recent investigation by the Department of Energy's (DOE) Office of Price-Anderson Enforcement (OE) at the Hanford Tank Farms of four radiological and operational events occurring during 2003 and 2004. The events included (1) the June 2003 multiple personnel contamination event at the [ ]; (2) the November 2003 Technical Safety Requirement violation during a cross-site waste transfer; (3) the November 2003 valve positioning error during S-112 waste retrieval operations; and

103

Advanced Technology Solar Telescope 4.2 m Off-axis Primary Mirror Fabrication  

Science Journals Connector (OSTI)

Advanced optical surfacing technologies are applied for the Advanced Technology Solar Telescope 4.2 m off-axis primary mirror fabrication. A newly developed Stressed lap and IR...

Kim, Dae Wook; Oh, Chang Jin; Su, Peng; Burge, James H

104

Enforcement Letter, CH2M Hill Hanford Group, Inc - July 8, 2005...  

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

Inc - July 8, 2005 July 8, 2005 Issued to CH2M Hill Hanford Group, Inc., related to Neutron Exposure at the Hanford Site On July 8, 2005, the U.S. Department of Energy (DOE)...

105

EP271 Syllabus 2011-2012 T2 M.P. Bradley  

E-Print Network (OSTI)

EP271 Syllabus 2011-2012 T2 M.P. Bradley EP271: Heat, Kinetic Theory & Thermodynamics 2011 Room 312) CourseWebsite:http://physics.usask.ca/%7Ebradley/EP271_main.html Textbook

Saskatchewan, University of

106

Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2)  

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

The Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2) was established as a result of the Administrations efforts to improve electricity subsector cybersecurity capabilities,...

107

Enforcement Letter, CH2M-Washington Group Idaho LLC , - May 20...  

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

Idaho LLC , - May 20, 2009 May 20, 2009 Issued to CH2M-Washington Group Idaho, LLC, for Electrical Safety Deficiencies at the Idaho National Laboratory On May 20, 2009, the U.S....

108

Preliminary Notice of Violation, CH2M-Washington Group Idaho, LLC- EA-2007-03  

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

Issued to CH2M-Washington Group Idaho, LLC, related to Radiation Protection Program Deficiencies at the Radioactive Waste Management Complex - Accelerated Retrieval Project at the Idaho National Laboratory

109

DOE Cites CH2M Hill Hanford for Violating Nuclear Safety Rules | Department  

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

for Violating Nuclear Safety Rules for Violating Nuclear Safety Rules DOE Cites CH2M Hill Hanford for Violating Nuclear Safety Rules March 10, 2005 - 10:44am Addthis Hanford Tank Farm Contractor Faces Fine of more than $300,000 WASHINGTON, DC - The Department of Energy (DOE) today notified the CH2M Hill Hanford Group, Inc. (CH2M Hill) - that it will fine the company $316,250 for violations of the department's nuclear safety requirements. CH2M Hill is the department's contractor responsible for storage of highly radioactive and hazardous liquid waste at the Hanford Tank Farms near Richland, Wash. The Preliminary Notice of Violation (PNOV) issued today, cites four events that took place in 2003 and 2004. These events include the contamination of several workers while removing equipment from a valve pit

110

HERA-B GAS HUT: Mixing stations OTR: 4,2 x 1,2 m  

E-Print Network (OSTI)

HERA-B GAS HUT: Mixing stations OTR: 4,2 x 1,2 m MUON tube + pad: 3,0 x 1,2 m 80 MUON pixel: 1,2x1 gas bottles Detector.xls(Gas hut) Page 1 J. Spengler 20.08.1997 #12;The compressors will be installed purifiers 2 compressors 1 compressors 1 spare 1 gas separator 1 7 spare 0,5 5 Muon tube MFC's + steering

111

Asperlin induces G{sub 2}/M arrest through ROS generation and ATM pathway in human cervical carcinoma cells  

SciTech Connect

Highlights: {yields} A new anti-cancer effect of an antibiotics, asperlin, is exploited. {yields} Asperlin induced human cervical cancer cell apoptosis through ROS generation. {yields} Asperlin activated DNA-damage related ATM protein and cell cycle associated proteins. {yields} Asperlin could be developed as a new anti-cancer therapeutics. -- Abstract: We exploited the biological activity of an antibiotic agent asperlin isolated from Aspergillus nidulans against human cervical carcinoma cells. We found that asperlin dramatically increased reactive oxygen species (ROS) generation accompanied by a significant reduction in cell proliferation. Cleavage of caspase-3 and PARP and reduction of Bcl-2 could also be detected after asperlin treatment to the cells. An anti-oxidant N-acetyl-L-cysteine (NAC), however, blocked all the apoptotic effects of asperlin. The involvement of oxidative stress in asperlin induced apoptosis could be supported by the findings that ROS- and DNA damage-associated G2/M phase arrest and ATM phosphorylation were increased by asperlin. In addition, expression and phosphorylation of cell cycle proteins as well as G2/M phase arrest in response to asperlin were significantly blocked by NAC or an ATM inhibitor KU-55933 pretreatment. Collectively, our study proved for the first time that asperlin could be developed as a potential anti-cancer therapeutics through ROS generation in HeLa cells.

He, Long; Nan, Mei-Hua [Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gun, Chungbuk 363-883 (Korea, Republic of)] [Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gun, Chungbuk 363-883 (Korea, Republic of); Oh, Hyun Cheol [College of Medical and Life Sciences, Silla University, 100 Silladaehak-gil, Sasang-gu, Busan 617-736 (Korea, Republic of)] [College of Medical and Life Sciences, Silla University, 100 Silladaehak-gil, Sasang-gu, Busan 617-736 (Korea, Republic of); Kim, Young Ho [College of Pharmacy, ChungNam National University, Yuseong, Daejeon, 305-764 (Korea, Republic of)] [College of Pharmacy, ChungNam National University, Yuseong, Daejeon, 305-764 (Korea, Republic of); Jang, Jae Hyuk [Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gun, Chungbuk 363-883 (Korea, Republic of)] [Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gun, Chungbuk 363-883 (Korea, Republic of); Erikson, Raymond Leo [Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138 (United States)] [Department of Molecular and Cellular Biology, Harvard University, Cambridge, MA 02138 (United States); Ahn, Jong Seog, E-mail: jsahn@kribb.re.kr [Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gun, Chungbuk 363-883 (Korea, Republic of); Kim, Bo Yeon, E-mail: bykim@kribb.re.kr [Chemical Biology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gun, Chungbuk 363-883 (Korea, Republic of); World Class Institute, KRIBB, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gun, Chungbuk 363-883 (Korea, Republic of)

2011-06-10T23:59:59.000Z

112

Domain mobility as probed by small-angle X-ray scattering may account for substrate access to the active site of two copper-dependent amine oxidases  

Science Journals Connector (OSTI)

SAXS analysis suggests that in solution CAOs homodimers could undergo a conformational change. The D3 domain seems to move with respect to the rest of the protein, increasing the accessibility of the active site.

Dainese, E.

2014-07-25T23:59:59.000Z

113

Chemical sensing flow probe  

DOE Patents (OSTI)

A new chemical probe determines the properties of an analyte using the light absorption of the products of a reagent/analyte reaction. The probe places a small reaction volume in contact with a large analyte volume. Analyte diffuses into the reaction volume. Reagent is selectively supplied to the reaction volume. The light absorption of the reaction in the reaction volume indicates properties of the original analyte. The probe is suitable for repeated use in remote or hostile environments. It does not require physical sampling of the analyte or result in significant regent contamination of the analyte reservoir.

Laguna, George R. (Albuquerque, NM); Peter, Frank J. (Albuquerque, NM); Butler, Michael A. (Albuquerque, NM)

1999-01-01T23:59:59.000Z

114

The gridded electromagnet probe  

E-Print Network (OSTI)

We attempted to measure the anisotropy in the electron distribution function in magnetized plasma by exploiting the adiabatic invariance of the electron's magnetic moment with a probe comprising a grid, a collector, and ...

Shadman, K. (Khashayar), 1972-

2003-01-01T23:59:59.000Z

115

Enforcement Letter, CH2M Hill Hanford Group Inc, - September 6, 2007 |  

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

Group Inc, - September 6, Group Inc, - September 6, 2007 Enforcement Letter, CH2M Hill Hanford Group Inc, - September 6, 2007 September 6, 2007 Enforcement Letter issued to CH2M Hill Hanford Group, Inc., related to Quality Improvement Deficiencies at the Hanford Tank Farms The Department of Energy (DOE) held an Enforcement Conference on August 29, 2006, with CH2M Hill Hanford Group (CHG) to discuss potential violations of nuclear safety requirements described in our Investigation Summary Report dated July 26, 2006. At that time, DOE elected to defer a decision on a potential quality improvement violation related to recurring radiological events and deficiencies in the identification and control of radiological hazards at the Tank Farms. This decision was based upon the fact that CHG senior management had initiated radiological work

116

Enforcement Letter, CH2M-Washington Group Idaho LLC , - May 20, 2009 |  

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

M-Washington Group Idaho LLC , - May 20, M-Washington Group Idaho LLC , - May 20, 2009 Enforcement Letter, CH2M-Washington Group Idaho LLC , - May 20, 2009 May 20, 2009 Enforcement Letter issued to CH2M-Washington Group Idaho, LLC, for Electrical Safety Deficiencies at the Idaho National Laboratory In July 2008, the U.S. Department of Energy (DOE) Office of Health, Safety and Security's, Office of Enforcement was made aware of numerous, longstanding electrical safety deficiencies associated with electrical equipment located on the east side of the Idaho Nuclear Technology and Engineering Center (INTEC). The Office of Enforcement is also aware that shortly after electrical safety issues with this equipment were identified by a CH2M-Washington Group Idaho, LLC (CWI) worker in May 2007, CWI completed an Engineering Design File

117

Enforcement Letter, CH2M Oak Ridge, LLC - SEL-2012-01 | Department of  

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

M Oak Ridge, LLC - SEL-2012-01 M Oak Ridge, LLC - SEL-2012-01 Enforcement Letter, CH2M Oak Ridge, LLC - SEL-2012-01 May 4, 2012 Issued to URS CH2M Oak Ridge, LLC, related to a Security Incident involving the Protection and Control of Classified Information at the East Tennessee Technology Park The Office of Health, Safety and Security's Office of Enforcement and Oversight has completed its evaluation of a security incident involving the protection and control of classified information at the East Tennessee Teclmology Park (ETTP) (Local Tracking System Report No. II-IOSC-0576-13). Based on this evaluation, the Department of Energy (DOE) identified concerns that warrant management attention by URS CH2M Oak Ridge, LLC (UCOR), the responsible contractor for ETTP. The specific concerns stem from the number of classified components that

118

Enforcement Letter, CH2M-WG Idaho - NEL-2011-02 | Department of Energy  

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

M-WG Idaho - NEL-2011-02 M-WG Idaho - NEL-2011-02 Enforcement Letter, CH2M-WG Idaho - NEL-2011-02 September 28, 2011 Issued to CH2M-WG Idaho, LLC related to Quality Assurance and Work Control Issues during Construction of the Sodium Bearing Waste Treatment Project at the Idaho National Laboratory The Office of Health, Safety and Security's Office of Enforcement and Oversight conducted an evaluation of the facts and circumstances associated with quality assurance and work control deficiencies that occurred during the construction of the Sodium Bearing Waste Treatment Project (SBWTP) at the U.S. Department of Energy's (DOE) Idaho National Laboratory. On February 9, 2011, CH2M-Washington Group Idaho, LLC (CWI) reported noncompliances associated with these deficiencies in DOE's Noncompliance Tracking System (NTS) in reports NTS-ID--CWI-IWTU-2010-0002

119

Preliminary Notice of Violation, CH2M HILL Hanford Group, Inc. -  

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

HILL Hanford Group, Inc. - HILL Hanford Group, Inc. - NEA-2008-02 Preliminary Notice of Violation, CH2M HILL Hanford Group, Inc. - NEA-2008-02 June 5, 2008 Preliminary Notice of Violation issued to CH2M Hill Hanford Group, Inc., related to a Radioactive Waste Spill at the Hanford Site Tank Farms This letter refers to the Department of Energy's (DOE) investigation into the facts and circumstances associated with the July 27, 2007, spill of radioactive waste in the vicinity of the S-102 retrieval pump discharge at the Hanford Tank Farm. The results of the onsite investigation were provided in an Investigation Report dated March 5, 2008. Press Release Preliminary Notice of Violation, CH2M HILL Hanford Group, Inc. - NEA-2008-02 More Documents & Publications Preliminary Notice of Violation, Bechtel National, Inc. - NEA-2008-04

120

Enforcement Letter, CH2M Hill Hanford Group, Inc. - April 24, 2001 |  

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

Inc. - April 24, 2001 Inc. - April 24, 2001 Enforcement Letter, CH2M Hill Hanford Group, Inc. - April 24, 2001 April 24, 2001 Enforcement Letter issued to CH2M Hill Hanford Group, Inc., related to Nuclear Safety Management at the Hanford Site Tank Farms This letter refers to a recent investigation by the Department of Energy (DOE), regarding potential noncompliances with the requirements of 10 CFR 830, "Nuclear Safety Management," occurring at the Hanford Tank Farms. The investigation reviewed three issues that were reported into the Noncompliance Tracking System (NTS) by CH2M Hill Hanford Group, Inc. Two of the NTS reports involve the failure to perform the Technical Safety Requirement (TSR) for [ ] gas monitoring. The initial potential noncompliance occurred in January 2000, in which a Zip Cord was installed

Note: This page contains sample records for the topic "activity 2-m probe" 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

Consent Order, CH2M-WG Idaho, LLC - WCO-2011-01 | Department of Energy  

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

M-WG Idaho, LLC - WCO-2011-01 M-WG Idaho, LLC - WCO-2011-01 Consent Order, CH2M-WG Idaho, LLC - WCO-2011-01 October 6, 2011 Consent Order issued to CH2M-WG Idaho, LLC related to a Hoisting Incident that occurred at the Sodium Bearing Waste Treatment Project at the Idaho National Laboratory The Office of Health Safety and Security's Office of Enforcement and Oversight has completed its investigation into the facts and circumstances associated with the October 4, 2010, hoisting incident that occurred when a telescopic hydraulic gantry system tipped while lifting a 7,800-pound shield plug at the Sodium Bearing Waste Treatment Project (SBWTP) located at the U.S. Department of Energy's Idaho National Laboratory. The results of the investigation were provided to CH2M-WG Idaho, LLC (CWI) in an Investigation Report, dated April 20, 2011, and

122

Higher Rank Conformal Fields in the $Sp(2M)$ Symmetric Generalized Space-Time  

E-Print Network (OSTI)

We study various $Sp(2M)$ invariant field equations corresponding to rank $r$ tensor products of the Fock (singleton) representation of $Sp(2M)$. These equations are shown to describe localization on ``branes'' of different dimensions embedded into the generalized space-time $\\M_M$ with matrix (i.e., ``central charge'') coordinates. The case of bilinear tensor product is considered in detail. The conserved currents built from bilinears of rank 1 fields in $\\M_M$ are shown to satisfy the field equations of the rank 2 fields in $\\M_M$. Also, the rank 2 fields in $\\M_M$ are shown to be equivalent to the rank 1 fields in $\\M_{2M}$.

O. A. Gelfond; M. A. Vasiliev

2005-05-19T23:59:59.000Z

123

Independent Oversight Review, Richland Operations Office and CH2M Hill Plateau Remediation Company and Mission Support Alliance- April 2012  

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

Review of Richland Operations Office and CH2M Hill Plateau Remediation Company and Mission Support Alliance Conduct of Operations

124

CCT: Connect and Control Things A Novel Mobile Application to Manage M2M Devices and Endpoints  

E-Print Network (OSTI)

-to-Machine (M2M) market [1, 2]. IoT has also opened new vistas in smart metering, smart grid, smart city and endpoint, (ii) real time interaction with sensors and actuators associated to M2M devices, (iii) benefit applications for IoT ecosystems totally indispensable. For example, in smart homes, M2M devices [6] are able

Gesbert, David

125

Identification of bimetallic electrocatalysts for ethanol and acetaldehyde oxidation: Probing C2-pathway and activity for hydrogen oxidation for indirect hydrogen fuel cells  

Science Journals Connector (OSTI)

Abstract Hydrogen, in the ethanol molecule, can be utilized in indirect hydrogen fuel cells. In this device, ethanol can be dehydrogenated producing H2 and acetaldehyde in an external fuel processor, and the H2 molecules are electro-oxidized in the anode. The anode electrocatalyst can, additionally, be active for the electro-oxidation of residual ethanol or acetaldehyde, but must catalyze the reaction via the C2-pathway (intact CC bond), in order to avoid the formation poisoning species. This work investigated potential materials that are active for H2 and catalyze the selective electro-oxidation of ethanol and acetaldehyde via the C2-pathway. The bimetallic electrocatalysts were formed by W, Ru and Sn-modified Pt nanoparticles. The reaction products were followed by on-line differential electrochemical mass spectrometry (DEMS) experiments. The results showed that Ru/Pt/C and Sn/Pt/C presented higher overall reaction rate when compared to the other studied materials. However, they were non-selective, even at different atomic proportions, and catalyzed the reaction in parallel pathways producing CO2 and acetaldehyde, with Ru/Pt/C presenting the highest average current efficiency for CO2 formation (16.6%). On the other hand, W/Pt/C with high W content was more selective to the C2 route, evidenced by the absence of the DEMS signals for molecules with one carbon atom such as CH4 and CO2. Additionally, this material was active and stable for H2 electro-oxidation, even in the presence of acetaldehyde in solution, contrarily to what was observed for Pt/C, and this was associated to its activity for H2 oxidation and its inability for the CC dissociation, as evidenced by the DEMS measurements. The high selectivity obtained for the W/Pt/C material to the C2-pathway, and its capability for hydrogen electro-oxidation, is an important novelty in this work, as it turns into a potential electrocatalyst for application in the anode of indirect hydrogen fuel cells powered by ethanol, mainly for those that operates as auxiliary power units of internal combustion engine cars.

A.C. Queiroz; W.O. Silva; I.A. Rodrigues; F.H.B. Lima

2014-01-01T23:59:59.000Z

126

Sustainability Data and Analytics in Cloud-Based M2M Systems  

E-Print Network (OSTI)

and integrated: (1) data about building elements (e.g., floors, equipment, and electricity systems), (2) data. Dustdar e-mail: dustdar@dsg.tuwien.ac.at N. Bessis and C. Dobre (eds.), Big Data and Internet of ThingsSustainability Data and Analytics in Cloud-Based M2M Systems Hong-Linh Truong and Schahram Dustdar

Dustdar, Schahram

127

Oil and Natural Gas Subsector Cybersecurity Capability Maturity Model (ONG-C2M2)  

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

The Oil and Natural Gas Subsector Cybersecurity Capability Maturity Model (ONG-C2M2) was established as a result of the Administrations efforts to improve electricity subsector cybersecurity capabilities, and to understand the cybersecurity posture of the energy sector.

128

INELASTIC NEUTRON SCATTERING SELECTION RULES OF 03B1 HgI2 M. SIESKIND  

E-Print Network (OSTI)

899 INELASTIC NEUTRON SCATTERING SELECTION RULES OF 03B1 HgI2 M. SIESKIND Laboratoire de The inelastic neutron scattering selection rules of 03B1 HgI2 in the directions 0394, 03A3 and 039B are derived Abstracts 63.20D Introduction. - Inelastic neutron scattering is a powerful technique for the determination

Boyer, Edmond

129

Convective heat flow probe  

DOE Patents (OSTI)

A convective heat flow probe device is provided which measures heat flow and fluid flow magnitude in the formation surrounding a borehole. The probe comprises an elongate housing adapted to be lowered down into the borehole; a plurality of heaters extending along the probe for heating the formation surrounding the borehole; a plurality of temperature sensors arranged around the periphery of the probe for measuring the temperature of the surrounding formation after heating thereof by the heater elements. The temperature sensors and heater elements are mounted in a plurality of separate heater pads which are supported by the housing and which are adapted to be radially expanded into firm engagement with the walls of the borehole. The heat supplied by the heater elements and the temperatures measured by the temperature sensors are monitored and used in providing the desired measurements. The outer peripheral surfaces of the heater pads are configured as segments of a cylinder and form a full cylinder when taken together. A plurality of temperature sensors are located on each pad so as to extend along the length and across the width thereof, with a heating element being located in each pad beneath the temperature sensors. An expansion mechanism driven by a clamping motor provides expansion and retraction of the heater pads and expandable packet-type seals are provided along the probe above and below the heater pads.

Dunn, J.C.; Hardee, H.C.; Striker, R.P.

1984-01-09T23:59:59.000Z

130

Multispectral imaging probe  

DOE Patents (OSTI)

A multispectral imaging probe delivers a range of wavelengths of excitation light to a target and collects a range of expressed light wavelengths. The multispectral imaging probe is adapted for mobile use and use in confined spaces, and is sealed against the effects of hostile environments. The multispectral imaging probe comprises a housing that defines a sealed volume that is substantially sealed from the surrounding environment. A beam splitting device mounts within the sealed volume. Excitation light is directed to the beam splitting device, which directs the excitation light to a target. Expressed light from the target reaches the beam splitting device along a path coaxial with the path traveled by the excitation light from the beam splitting device to the target. The beam splitting device directs expressed light to a collection subsystem for delivery to a detector. 8 figs.

Sandison, D.R.; Platzbecker, M.R.; Descour, M.R.; Armour, D.L.; Craig, M.J.; Richards-Kortum, R.

1999-07-27T23:59:59.000Z

131

Multispectral imaging probe  

DOE Patents (OSTI)

A multispectral imaging probe delivers a range of wavelengths of excitation light to a target and collects a range of expressed light wavelengths. The multispectral imaging probe is adapted for mobile use and use in confined spaces, and is sealed against the effects of hostile environments. The multispectral imaging probe comprises a housing that defines a sealed volume that is substantially sealed from the surrounding environment. A beam splitting device mounts within the sealed volume. Excitation light is directed to the beam splitting device, which directs the excitation light to a target. Expressed light from the target reaches the beam splitting device along a path coaxial with the path traveled by the excitation light from the beam splitting device to the target. The beam splitting device directs expressed light to a collection subsystem for delivery to a detector.

Sandison, David R. (Moriarty, NM); Platzbecker, Mark R. (Albuquerque, NM); Descour, Michael R. (Tucson, AZ); Armour, David L. (Albuquerque, NM); Craig, Marcus J. (Albuquerque, NM); Richards-Kortum, Rebecca (Austin, TX)

1999-01-01T23:59:59.000Z

132

Earth-Based Radio Tracking of the Galileo Probe for Jupiter Wind Estimation  

Science Journals Connector (OSTI)

...structure and large variation in wind...potentially as large as caused by the...channels near 1387 MHz (21.6 cm...probe through the atmosphere with a fully suppressed...descent, the Very Large Array (VLA...provide a collecting area equivalent to that...and solar plasma (<2 m/s...

W. M. Folkner; R. A. Preston; J. S. Border; J. Navarro; W. E. Wilson; M. Oestreich

1997-01-31T23:59:59.000Z

133

Structure-Activity Relationships in NH3-SCR over Cu-SSZ-13 as Probed by Reaction Kinetics and EPR Studies  

SciTech Connect

Cu-SSZ-13 catalysts with various Cu loadings were prepared via solution ion exchange. The hydrated samples were studied with Electron Paramagnetic Resonance (EPR). Cu2+ ion coordination numbers were obtained by analyzing the hyperfine structures while Cu-Cu distances were estimated from line broadening of the EPR features. By coupling EPR and temperature-programmed reduction (TPR) results, two Cu2+ ion locations were suggested. Standard and fast NH3-SCR, as well as non-selective NH3 oxidation reactions were carried out over these catalysts at high space velocities. For the SCR reaction, intra-particle diffusion limitation was found throughout the reaction temperatures investigated. Although clear structure-activity relationships cannot be derived, the reaction results allow for reactant diffusivities and Cu2+ ion locations to be estimated. The slower NH3 oxidation reaction, on the other hand, is kinetically limited at low temperatures, and, therefore, allows for a correlation between Cu2+ ion location and reaction kinetics to be made. Furthermore, the dynamic Cu2+ ion motion as a function of temperature could also be derived from the NH3 oxidation kinetics.

Gao, Feng; Walter, Eric D.; Karp, Eric M.; Luo, Jin-Yong; Tonkyn, Russell G.; Kwak, Ja Hun; Szanyi, Janos; Peden, Charles HF

2013-04-01T23:59:59.000Z

134

Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc. - EA-2006-06  

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

Inc. - Inc. - EA-2006-06 Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc. - EA-2006-06 November 16, 2006 Preliminary Notice of Violation issued to CH2M Hill Hanford Group, Inc., related to Radiological Contamination Events at the Hanford Site Tank Farms This letter refers to the recent investigation at the Hanford Tank Farms by the Department of Energy's (DOE) Office of Enforcement, now within the Office of Health, Safety and Security. The investigation involved (1) the September 2005 Tank C-202 Mobile Retrieval System (MRS) multi-personnel contamination event, (2) the March 2006 ER-311 catch tank camera removal radiological event, and (3) additional radiological contamination events that occurred between 2003-2006 as they relate to quality improvement

135

Preliminary Notice of Violation, CH2M-Washington Group Idaho, LLC -  

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

M-Washington Group Idaho, LLC - M-Washington Group Idaho, LLC - EA-2007-03 Preliminary Notice of Violation, CH2M-Washington Group Idaho, LLC - EA-2007-03 June 14, 2007 Preliminary Notice of Violation issued to CH2M-Washington Group Idaho, LLC, related to Radiation Protection Program Deficiencies at the Radioactive Waste Management Complex - Accelerated Retrieval Project at the Idaho National Laboratory This letter refers to the investigation of events at the Radioactive Waste Management Complex - Accelerated Retrieval Project (ARP) by the Department of Energy's (DOE) Office of Enforcement. The investigation summary report, Multiple Radiological Protection Program Deficiencies and Safety Culture Concerns, was provided to you in a letter dated February 20, 2007. An enforcement conference to discuss these findings was held on March

136

DOE Cites CH2M Hill Hanford Group, Inc. for Price-Anderson Violations |  

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

Group, Inc. for Price-Anderson Group, Inc. for Price-Anderson Violations DOE Cites CH2M Hill Hanford Group, Inc. for Price-Anderson Violations June 5, 2008 - 12:51pm Addthis WASHINGTON, DC - The Department of Energy (DOE) today issued a Preliminary Notice of Violation (PNOV) to CH2M Hill Hanford Group, Inc. (CHG) for nuclear safety violations. CHG is the tank operations contractor for the tank farms located at DOE's Hanford Site in southeastern Washington State. The PNOV cites a series of violations that occurred on July 27, 2007, when waste being pumped out of tank S-102 spilled in the vicinity of the tank's retrieval pump. During waste transfer operations, a supply line became over-pressurized with tank waste, causing a rupture in the dilution water supply line and resulted in a spill of approximately 85 gallons of

137

Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc - March 10,  

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

Inc - Inc - March 10, 2005 Preliminary Notice of Violation, CH2M Hill Hanford Group, Inc - March 10, 2005 March 10, 2005 Preliminary Notice of Violation issued to CH2M Hill Hanford Group, Inc., related to Radiological and Operational Events at the Hanford Tank Farms This letter refers to the recent investigation by the Department of Energy's (DOE) Office of Price-Anderson Enforcement (OE) at the Hanford Tank Farms of four radiological and operational events occurring during 2003 and 2004. The events included (1) the June 2003 multiple personnel contamination event at the [ ]; (2) the November 2003 Technical Safety Requirement violation during a cross-site waste transfer; (3) the November 2003 valve positioning error during S-112 waste retrieval operations; and

138

DOE Cites CH2M Hill Hanford Group for Price-Anderson Violations |  

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

Group for Price-Anderson Violations Group for Price-Anderson Violations DOE Cites CH2M Hill Hanford Group for Price-Anderson Violations November 17, 2006 - 9:25am Addthis WASHINGTON, DC - The Department of Energy (DOE) today notified CH2M Hill Hanford Group (CHG) that it will fine the company $82,500 for violations of the Department's nuclear safety requirements. CHG is the prime contractor responsible for managing the storage and retrieval of highly radioactive and hazardous waste at the DOE Hanford Tank Farm site. The Preliminary Notice of Violation (PNOV) issued today cited a series of violations associated with two separate events involving the radioactive contamination of multiple CHG employees. The first event occurred on September 21, 2005, during disassembly and removal of auxiliary equipment

139

Electricity Subsector Cybersecurity Capability Maturity Model (ES-C2M2) - May 2012.pdf  

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

ElEctricity SubSEctor ElEctricity SubSEctor cybErSEcurity capability Maturity MoDEl (ES-c2M2) Version 1.0 31 May 2012 Electricity Subsector Cybersecurity Capability Maturity Model Version 1.0 © 2012 Carnegie Mellon University TABLE OF CONTENTS i Acknowledgments ..................................................................................................................................................iii CAUTIONARY NOTE Intended Scope and Use of This Publication .................................................................................vi 1 Introduction .....................................................................................................................................................1 2 Background .....................................................................................................................................................1

140

Dark Energy Probes of Dark Energy  

E-Print Network (OSTI)

19/12/2013 1 Dark Energy Probes of Dark Energy Probes Dark Energy Supernovae Ia probing luminosity (Betti numbers) #12;19/12/2013 2 Dark Energy Probes: Comparison Method Strengths Weaknesses Systematics

Weijgaert, Rien van de

Note: This page contains sample records for the topic "activity 2-m probe" from the National Library of EnergyBeta (NLEBeta).
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141

Deformation Expression for Elements of Algebras (II) --(Weyl algebra of 2m-generators)--  

E-Print Network (OSTI)

This is a noncommutative version of the previous work entitled "Deformation Expression for Elements of Algebras (I)." In general in a noncommutative algebra, there is no canonical way to express elements in univalent way, which is often called "ordering problem". In this note we discuss this problem in the case of the Weyl algebra of 2m-generators. By fixing an expression, we extends Weyl algebra transcendentally. We treat *-exponential functions of linear forms, and quadratic forms of crossed symbol under generic expression parameters.

Hideki Omori; Yoshiaki Maeda; Naoya Miyazaki; Akira Yoshioka

2011-05-06T23:59:59.000Z

142

Boosting the performance of the ASTRI SST-2M prototype: reflective and anti-reflective coatings  

E-Print Network (OSTI)

ASTRI is a Flagship Project of the Italian Ministry of Education, University and Research, led by the Italian National Institute of Astrophysics, INAF. One of the main aims of the ASTRI Project is the design, construction and verification on-field of a dual mirror (2M) end-to-end prototype for the Small Size Telescope (SST) envisaged to become part of the Cherenkov Telescope Array. The ASTRI SST-2M prototype adopts the Schwarzschild-Couder design, and a camera based on SiPM (Silicon Photo Multiplier); it will be assembled at the INAF astronomical site of Serra La Nave on mount Etna (Catania, Italy) within mid 2014, and will start scientific validation phase soon after. The peculiarities of the optical design and of the SiPM bandpass pushed towards specifically optimized choices in terms of reflective coatings for both the primary and the secondary mirror. In particular, multi-layer dielectric coatings, capable of filtering out the large Night Sky Background contamination at wavelengths $\\lambda \\gtrsim 700$ n...

Perri, Luca

2013-01-01T23:59:59.000Z

143

Electromagnetic Probes in PHENIX  

E-Print Network (OSTI)

Electromagnetic probes are arguably the most universal tools to study the different physics processes in high energy hadron and heavy ion collisions. In this paper we summarize recent measurements of real and virtual direct photons at central rapidity by the PHENIX experiment at RHIC in p+p, d+Au and Au+Au collisions. We also discuss the impact of the results and the constraints they put on theoretical models. At the end we report on the immediate as well as on the mid-term future of photon measurements at RHIC.

Gabor David

2006-09-21T23:59:59.000Z

144

(4-Methoxyphenyl)(3,4,5-trimethoxyphenyl)methanone inhibits tubulin polymerization, induces G{sub 2}/M arrest, and triggers apoptosis in human leukemia HL-60 cells  

SciTech Connect

(4-Methoxyphenyl)(3,4,5-trimethoxyphenyl)methanone (PHT) is a known cytotoxic compound belonging to the phenstatin family. However, the exact mechanism of action of PHT-induced cell death remains to be determined. The aim of this study was to investigate the mechanisms underlying PHT-induced cytotoxicity. We found that PHT displayed potent cytotoxicity in different tumor cell lines, showing IC{sub 50} values in the nanomolar range. Cell cycle arrest in G{sub 2}/M phase along with the augmented metaphase cells was found. Cells treated with PHT also showed typical hallmarks of apoptosis such as cell shrinkage, chromatin condensation, phosphatidylserine exposure, increase of the caspase 3/7 and 8 activation, loss of mitochondrial membrane potential, and internucleosomal DNA fragmentation without affecting membrane integrity. Studies conducted with isolated tubulin and docking models confirmed that PHT binds to the colchicine site and interferes in the polymerization of microtubules. These results demonstrated that PHT inhibits tubulin polymerization, arrests cancer cells in G{sub 2}/M phase of the cell cycle, and induces their apoptosis, exhibiting promising anticancer therapeutic potential. - Highlights: PHT inhibits tubulin polymerization. PHT arrests cancer cells in G{sub 2}/M phase of the cell cycle. PHT induces caspase-dependent apoptosis.

Magalhes, Hemerson I.F. [Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Cear, Fortaleza, Cear (Brazil); Centro de Cincias da Sade, Departamento de Cincias Farmacuticas, Universidade Federal da Paraba, Joo Pessoa, Paraba (Brazil); Wilke, Diego V. [Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Cear, Fortaleza, Cear (Brazil); Bezerra, Daniel P., E-mail: danielpbezerra@gmail.com [Centro de Pesquisa Gonalo Moniz, Fundao Oswaldo Cruz, Salvador, Bahia (Brazil); Cavalcanti, Bruno C. [Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Cear, Fortaleza, Cear (Brazil); Rotta, Rodrigo; Lima, Dnis P. de; Beatriz, Adilson [Centro de Cincias Exatas e Tecnolgicas (Laboratrio LP4), Universidade Federal do Mato Grosso do Sul, Campo Grande, Mato Grosso do Sul (Brazil); Moraes, Manoel O.; Diniz-Filho, Jairo [Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Cear, Fortaleza, Cear (Brazil); Pessoa, Claudia, E-mail: c_pessoa@yahoo.com [Departamento de Fisiologia e Farmacologia, Faculdade de Medicina, Universidade Federal do Cear, Fortaleza, Cear (Brazil)

2013-10-01T23:59:59.000Z

145

Variable path length spectrophotometric probe  

DOE Patents (OSTI)

A compact, variable pathlength, fiber optic probe for spectrophotometric measurements of fluids in situ. The probe comprises a probe body with a shaft having a polished end penetrating one side of the probe, a pair of optic fibers, parallel and coterminous, entering the probe opposite the reflecting shaft, and a collimating lens to direct light from one of the fibers to the reflecting surface of the shaft and to direct the reflected light to the second optic fiber. The probe body has an inlet and an outlet port to allow the liquid to enter the probe body and pass between the lens and the reflecting surface of the shaft. A linear stepper motor is connected to the shaft to cause the shaft to advance toward or away from the lens in increments so that absorption measurements can be made at each of the incremental steps. The shaft is sealed to the probe body by a bellows seal to allow freedom of movement of the shaft and yet avoid leakage from the interior of the probe.

O'Rourke, Patrick E. (157 Greenwood Dr., Martiney, GA 30907); McCarty, Jerry E. (104 Recreation Dr., Aiken, SC 29803); Haggard, Ricky A. (1144 Thornwood Drive, North Augusta, SC 29891)

1992-01-01T23:59:59.000Z

146

Nanodopant-Induced Band Modulation in AgPbmSbTe2+m-Type Nanocomposites  

SciTech Connect

We elucidate the fundamental physics of nanoscale dopants in narrow band-gap thermoelectric nanocomposites XPbmYTe2+m (X=Ag,Na; Y=Sb,Bi) using first-principles calculations. Our re- sults unveil distinct band-structure modulations, most notably a sizable band-gap widening driven by nanodopant-induced lattice strain and a band split-off at the conduction band minimum caused by the spin-orbit interaction of the dopant Sb or Bi atoms. Boltzmann transport calculations demon- strate that these band modulations have significant but competing effects on high-temperature elec- tron transport behavior. These results offer insights for understanding recent experimental findings and suggest principles for optimizing thermoelectric properties of narrow band-gap semiconductors.

Zhang, Yi [University of Nevada, Las Vegas; Ke, Xuezhi [University of Nevada, Las Vegas; Chen, Changfeng [University of Nevada, Las Vegas; Yang, Jihui [General Motors Corporation-R& D; Kent, Paul R [ORNL

2011-01-01T23:59:59.000Z

147

Activities  

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

Activities and events provide Residential Network members the opportunity to discuss similar needs and challenges, and to collectively identify effective strategies and useful resources.

148

Trapping and Probing Antihydrogen  

SciTech Connect

Precision spectroscopy of antihydrogen is a promising path to sensitive tests of CPT symmetry. The most direct route to achieve this goal is to create and probe antihydrogen in a magnetic minimum trap. Antihydrogen has been synthesized and trapped for 1000s at CERN by the ALPHA Collaboration. Some of the challenges associated with achieving these milestones will be discussed, including mixing cryogenic positron and antiproton plasmas to synthesize antihydrogen with kinetic energy less than the trap potential of .5K. Recent experiments in which hyperfine transitions were resonantly induced with microwaves will be presented. The opportunity for gravitational measurements in traps based on detailed studies of antihydrogen dynamics will be described. The talk will conclude with a discussion future antihydrogen research that will use a new experimental apparatus, ALPHA-I.

Wurtele, Jonathan [UC Berkeley and LBNL

2013-03-27T23:59:59.000Z

149

Rotating concave eddy current probe  

DOE Patents (OSTI)

A rotating concave eddy current probe for detecting fatigue cracks hidden from view underneath the head of a raised head fastener, such as a buttonhead-type rivet, used to join together structural skins, such as aluminum aircraft skins. The probe has a recessed concave dimple in its bottom surface that closely conforms to the shape of the raised head. The concave dimple holds the probe in good alignment on top of the rivet while the probe is rotated around the rivet's centerline. One or more magnetic coils are rigidly embedded within the probe's cylindrical body, which is made of a non-conducting material. This design overcomes the inspection impediment associated with widely varying conductivity in fastened joints.

Roach, Dennis P. (Albuquerque, NM); Walkington, Phil (Albuquerque, NM); Rackow, Kirk A. (Albuquerque, NM); Hohman, Ed (Albuquerque, NM)

2008-04-01T23:59:59.000Z

150

Enhanced G2-M Arrest by Nuclear Factor-KB-Dependent p21waf1/cip1  

E-Print Network (OSTI)

Enhanced G2-M Arrest by Nuclear Factor-KB-Dependent p21waf1/cip1 Induction Shelly M. Wuerzberger cell death. Importantly, p21waf1/cip1 was induced in S-G2-M phases in a NF-KB-dependent manner, and RNA­coupled induction of p21waf1/cip1 by NF-KB represents a resistance mechanism in certain cancer cells. (Mol Cancer

Miyamoto, Shigeki

151

The Automatic Real-Time GRB Pipeline of the 2-m Liverpool Telescope  

E-Print Network (OSTI)

The 2-m Liverpool Telescope (LT), owned by Liverpool John Moores University, is located in La Palma (Canary Islands) and operates in fully robotic mode. In 2005, the LT began conducting an automatic GRB follow-up program. On receiving an automatic GRB alert from a Gamma-Ray Observatory (Swift, INTEGRAL, HETE-II, IPN) the LT initiates a special override mode that conducts follow-up observations within 2-3 min of the GRB onset. This follow-up procedure begins with an initial sequence of short (10-s) exposures acquired through an r' band filter. These images are reduced, analyzed and interpreted automatically using pipeline software developed by our team called "LT-TRAP" (Liverpool Telescope Transient Rapid Analysis Pipeline); the automatic detection and successful identification of an unknown and potentially fading optical transient triggers a subsequent multi-color imaging sequence. In the case of a candidate brighter than r'=15, either a polarimetric (from 2006) or a spectroscopic observation (from 2007) will be triggered on the LT. If no candidate is identified, the telescope continues to obtain z', r' and i' band imaging with increasingly longer exposure times. Here we present a detailed description of the LT-TRAP and briefly discuss the illustrative case of the afterglow of GRB 050502a, whose automatic identification by the LT just 3 min after the GRB, led to the acquisition of the first early-time (< 1 hr) multi-color light curve of a GRB afterglow.

C. Guidorzi; A. Monfardini; A. Gomboc; C. J. Mottram; C. G. Mundell; I. A. Steele; D. Carter; M. F. Bode; R. J. Smith; S. N. Fraser; M. J. Burgdorf; A. M. Newsam

2005-11-01T23:59:59.000Z

152

Expected performance of the ASTRI-SST-2M telescope prototype  

E-Print Network (OSTI)

ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana) is an Italian flagship project pursued by INAF (Istituto Nazionale di Astrofisica) strictly linked to the development of the Cherenkov Telescope Array, CTA. Primary goal of the ASTRI program is the design and production of an end-to-end prototype of a Small Size Telescope for the CTA sub-array devoted to the highest gamma-ray energy region. The prototype, named ASTRI SST-2M, will be tested on field in Italy during 2014. This telescope will be the first Cherenkov telescope adopting the double reflection layout in a Schwarzschild-Couder configuration with a tessellated primary mirror and a monolithic secondary mirror. The collected light will be focused on a compact and light-weight camera based on silicon photo-multipliers covering a 9.6 deg full field of view. Detailed Monte Carlo simulations have been performed to estimate the performance of the planned telescope. The results regarding its energy threshold, sensitivity and angular resolution ar...

Bigongiari, C; Morello, C; Stamerra, A; Vallania, P; Agnetta, G; Antonelli, L A; Bastieri, D; Bellassai, G; Belluso, M; Billotta, S; Biondo, B; Bonanno, G; Bonnoli, G; Bruno, P; Bulgarelli, A; Canestrari, R; Capalbi, M; Caraveo, P; Carosi, A; Cascone, E; Catalano, O; Cereda, M; Conconi, P; Conforti, V; Cusumano, G; De Caprio, V; De Luca, A; Di Paola, A; Fantinel, D; Fiorini, M; Fugazza, D; Gardiol, D; Ghigo, M; Gianotti, F; Giarrusso, S; Giro, E; Grillo, A; Impiombato, D; Incorvaia, S; La Barbera, A; La Palombara, N; La Parola, V; La Rosa, G; Lessio, L; Leto, G; Lombardi, S; Lucarelli, F; Maccarone, M C; Malaguti, G; Malaspina, G; Mangano, V; Marano, D; Martinetti, E; Millul, R; Mineo, T; Mist, A; Morlino, G; Panzera, M R; Pareschi, G; Rodeghiero, G; Romano, P; Russo, F; Sacco, B; Sartore, N; Schwarz, J; Segreto, A; Sironi, G; Sottile, G; Strazzeri, E; Stringhetti, L; Tagliaferri, G; Testa, V; Timpanaro, M C; Toso, G; Tosti, G; Trifoglio, M; Vercellone, S; Zitelli, V; Arrabito, L; Bernlohr, K; Maier, G; Komin, N

2013-01-01T23:59:59.000Z

153

Conducted Electrical Weapon Deployed Probe Wounds  

Science Journals Connector (OSTI)

Deployment of probes is a common method of use for some handheld conducted electrical weapons (CEWs). Probe deployment allows for greater...

Donald M. Dawes M.D.; Jeffrey D. Ho M.D.

2012-01-01T23:59:59.000Z

154

Probing Organic Transistors with Infrared Beams  

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

Probing Organic Transistors with Infrared Beams Probing Organic Transistors with Infrared Beams Print Wednesday, 26 July 2006 00:00 Silicon-based transistors are well-understood,...

155

Solar probe technology challenges  

Science Journals Connector (OSTI)

A mission close to the sun is only possible if new spacecraft technologies can be developed and incorporated into a state?of?the?art spacecraft concept. The perihelion goal of 4 solar radii requires a shielded spacecraft that can tolerate the almost 3000 suns solar flux while maintaining the electronics components at room temperature. In addition the shield surface should sublimate at a rate of less than 3mg/s at perihelion. Many shield configuration designs have been studied and the most promising is a parabolic shape that functions as both a shield and a large high gain antenna. The shield material chosen for this design is a carbon?carbon material with highly emissive surface properties. A mission requirement for a high telecommunications power stems from the expected interference when attempting to transmit data through the solar corona. It is expected that the large carbon?carbon shield/antenna will have a high power gain even at high temperatures and will return adequate telemetry at the X?band radio frequency chosen for the Solar Probe mission. Other key technology needs include a non?nuclear power subsystem that can function in the extreme environments of the mission from Earth to Jupiter and onward to a 4 solar radii perihelion.

James E. Randolph; Robert N. Miyake; Bill J. Nesmith; Ray B. Dirling Jr.; Richard J. Howard

1996-01-01T23:59:59.000Z

156

Long duration ash probe  

DOE Patents (OSTI)

A long duration ash probe includes a pressure shell connected to a port in a combustor with a sample coupon mounted on a retractable carriage so as to retract the sample coupon within the pressure shell during sootblowing operation of the combustor. A valve mounted at the forward end of the pressure shell is selectively closeable to seal the sample coupon within the shell, and a heating element in the shell is operable to maintain the desired temperature of the sample coupon while retracted within the shell. The carriage is operably mounted on a pair of rails within the shell for longitudinal movement within the shell. A hollow carrier tube connects the hollow cylindrical sample coupon to the carriage, and extends through the carriage and out the rearward end thereof. Air lines are connected to the rearward end of the carrier tube and are operable to permit coolant to pass through the air lines and thence through the carrier tube to the sample coupon so as to cool the sample coupon.

Hurley, John P. (Grand Forks, ND); McCollor, Don P. (Grand Forks, ND); Selle, Stanley J. (Grand Forks, MN)

1994-01-01T23:59:59.000Z

157

Long duration ash probe  

DOE Patents (OSTI)

A long duration ash probe includes a pressure shell connected to a port in a combustor with a sample coupon mounted on a retractable carriage so as to retract the sample coupon within the pressure shell during soot blowing operation of the combustor. A valve mounted at the forward end of the pressure shell is selectively closeable to seal the sample coupon within the shell, and a heating element in the shell is operable to maintain the desired temperature of the sample coupon while retracted within the shell. The carriage is operably mounted on a pair of rails within the shell for longitudinal movement within the shell. A hollow carrier tube connects the hollow cylindrical sample coupon to the carriage, and extends through the carriage and out the rearward end thereof. Air lines are connected to the rearward end of the carrier tube and are operable to permit coolant to pass through the air lines and thence through the carrier tube to the sample coupon so as to cool the sample coupon. 8 figs.

Hurley, J.P.; McCollor, D.P.; Selle, S.J.

1994-07-26T23:59:59.000Z

158

Exact probes of orientifolds  

E-Print Network (OSTI)

We compute the exact vacuum expectation value of circular Wilson loops for Euclidean ${\\cal N}=4$ super Yang-Mills with $G=SO(N),Sp(N)$, in the fundamental and spinor representations. These field theories are dual to type IIB string theory compactified on $AdS_5\\times {\\mathbb R} {\\mathbb P}^5$ plus certain choices of discrete torsion, and we use our results to probe this holographic duality. We first revisit the LLM-type geometries having $AdS_5\\times {\\mathbb R} {\\mathbb P}^5$ as ground state. Our results clarify and refine the identification of these LLM-type geometries as bubbling geometries arising from fermions on a half harmonic oscillator. We furthermore identify the presence of discrete torsion with the one-fermion Wigner distribution becoming negative at the origin of phase space. We then turn to the string world-sheet interpretation of our results and argue that for the quantities considered they imply two features: first, the contribution coming from world-sheets with a single crosscap is closely ...

Fiol, Bartomeu; Torrents, Genis

2014-01-01T23:59:59.000Z

159

Differential probes aid flow measurement  

SciTech Connect

Nonconstricting differential pressure flow probes which help solve the problems of clogging, wear, and pressure loss at the Seawater Filtration Facility in Saudi Arabia are described. Treated seawater is pumped into oil-bearing formations for secondary recovery. Figures showing principle of operation for probes, installation schematic and long-term accuracy results (flow probes vs. orifice meters) are presented. The new diamond-shaped design flow sensor offers accurate flow measurement with low permanent pressure loss, which translates into cost savings for the operator.

Mesnard, D.R.

1982-07-01T23:59:59.000Z

160

Optic probe for semiconductor characterization  

DOE Patents (OSTI)

Described herein is an optical probe (120) for use in characterizing surface defects in wafers, such as semiconductor wafers. The optical probe (120) detects laser light reflected from the surface (124) of the wafer (106) within various ranges of angles. Characteristics of defects in the surface (124) of the wafer (106) are determined based on the amount of reflected laser light detected in each of the ranges of angles. Additionally, a wafer characterization system (100) is described that includes the described optical probe (120).

Sopori, Bhushan L. (Denver, CO); Hambarian, Artak (Yerevan, AM)

2008-09-02T23:59:59.000Z

Note: This page contains sample records for the topic "activity 2-m probe" 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

PDF Rotating Probe VW Dwg  

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

7.350 PDF Rotating Probe Drawing 45 T 32 mm bore Top Loading into mixture dilution refrigerator 30 mK< T < 900 mK Heater & Thermometer location 24 pin SIP connector BeCu Spring...

162

Switchable stiffness scanning microscope probe  

E-Print Network (OSTI)

Atomic Force Microscopy (AFM) has rapidly gained widespread utilization as an imaging device and micro/nano-manipulator during recent years. This thesis investigates the new concept of a dual stiffness scanning probe with ...

Mueller-Falcke, Clemens T. (Clemens Tobias)

2005-01-01T23:59:59.000Z

163

President's panel probes sustainable development  

Science Journals Connector (OSTI)

President's panel probes sustainable development ... The President's Council on Sustainable Development, a blue-ribbon advisory panel established by President Bill Clinton last June, held its first meeting outside the nation's capital earlier this month in the Seattle. ...

DEBORAH ILLMAN

1994-01-31T23:59:59.000Z

164

Recent results from the CMD-2 detector at the VEPP-2M collider  

SciTech Connect

The general-purpose detector CMD-2 is taking data at the Novosibirsk VEPP-2M e{sup -}e{sup -} collider in the energy range 360-1400 MeV, with luminosity of {approx} 5.0 x 10{sup 30} cm{sup -2} s{sup -1} for the {phi} resonance region. Data from {approx} 1500 nb{sup -1} of integrated luminosity around 1.02 GeV and {approx}500 nb{sup -1} in the 600-1000 MeV range have been collected and preliminary analyses performed. We present progress in studies of the {phi} meson and K{sub S}K{sub L} systems: (a) measurement of the {phi} meson parameters; (b) searches for {phi} rare decays. The new upper limits B({phi}{yields}{eta}{prime} {gamma}) < 2.4 x 10{sup -4}, B({phi} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -}) < 1.0 x 10{sup -4}, and B({phi} {yields} f{sub 0}{gamma}) < 8 x 10{sup -4} have been obtained; (c) the study of the K{sub L} interactions in the CsI calorimeter; (d) with the help of 32,340 tagged K{sub S}, the semi-rare decay of K{sub S} {yields} {pi}{sup +}{pi}{sup -}{gamma} has been observed with a branching ratio of (1.82 {+-} 0.49)x10{sup -3}; and (e) selection of events with K{sub S}K{sub L} coupled decays and interactions. The regeneration cross section of the low moments K{sub L} was found to be {sigma}{sub reg}{sup Be} = 63 {+-} 19 mb. Data from the 600-1000 MeV energy range are used for high-accuracy measurement of the e{sup +}e{sup -} annihilation cross section, and the preliminary analysis is presented in this paper.

Solodov, E.P. [Budker Institute of Nuclear Physics, Novosibirsk (Russian Federation)

1997-01-01T23:59:59.000Z

165

Oxygen Isotope Effects as Probes of Electron Transfer Mechanisms and Structures of  

E-Print Network (OSTI)

Oxygen Isotope Effects as Probes of Electron Transfer Mechanisms and Structures of Activated O2, Maryland 21218 RECEIVED ON JULY 26, 2008 C O N S P E C T U S Competitively determined oxygen (18 O) isotope effects can be power- ful probes of chemical and biological transformations involving molec- ular oxygen

Roth, Justine P.

166

activities  

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

Detecting Things We Cannot See: Learning the Concepts of Control and Detecting Things We Cannot See: Learning the Concepts of Control and Variable in an Experiment Submitted by Anita Brook-Dupree, 1996 TRAC teacher at Fermilab, Teacher, Alternative Middle Years School, Philadelphia, PA. Particle physicists at Fermilab in Batavia, Illinois are faced with the problem of detecting the presence of sub-atomic particles they cannot see. During my summer as a TRAC teacher at Fermilab, I tried to think of ways to teach middle school students about things we cannot see. I want to thank my nine-year-old daughter Gia for the idea for the following activity. I was lamenting that I could not come up with ideas of how to relate the work of Fermilab scientists to anything that my students would understand. Then I was reminded by my daughter, that when I brought her to school on the

167

Electron and Scanning Probe Microscopies | U.S. DOE Office of Science (SC)  

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

Electron and Scanning Probe Microscopies Electron and Scanning Probe Microscopies Materials Sciences and Engineering (MSE) Division MSE Home About Research Areas Energy Frontier Research Centers (EFRCs) DOE Energy Innovation Hubs BES Funding Opportunities The Computational Materials and Chemical Sciences Network (CMCSN) Theoretical Condensed Matter Physics Scientific Highlights Reports and Activities Principal Investigators' Meetings BES Home Research Areas Electron and Scanning Probe Microscopies Print Text Size: A A A RSS Feeds FeedbackShare Page This research area supports basic research in condensed matter physics and materials physics using electron scattering and microscopy and scanning probe techniques. The research includes experiments and theory to understand the atomic, electronic, and magnetic structures of materials.

168

Equilibrium Isotope Effects as a Probe of Nonbonding Attractions  

Science Journals Connector (OSTI)

Equilibrium Isotope Effects as a Probe of Nonbonding Attractions ... Nonbonding interactions that occur in host?guest systems and the active sites of enzymes are altered by isotopic substitutions.1 For example, the binding affinities of caffeine isotopomers to human serum albumin vary considerably. ...

Yi-Lei Zhao; K. N. Houk; Dalit Rechavi; Alessandro Scarso; Julius Rebek, Jr.

2004-08-27T23:59:59.000Z

169

U-232: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the  

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

32: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny 32: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS U-232: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS August 10, 2012 - 7:00am Addthis PROBLEM: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS PLATFORM: This vulnerability effects only Xen 4.0 and 4.1. Xen 3.4 and earlier and xen-unstable are not vulnerable. ABSTRACT: A vulnerability was reported in Xen. A local user on a guest operating system can cause denial of service conditions on the host. reference LINKS: Xen Security Announcements SecurityTracker Alert ID: 1027365 seclists.org CVE-2012-3433 IMPACT ASSESSMENT: Medium Discussion: An HVM guest is able to manipulate its physical address space such that tearing down the guest takes an extended period amount of time searching

170

U-232: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the  

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

32: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny 32: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS U-232: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS August 10, 2012 - 7:00am Addthis PROBLEM: Xen p2m_teardown() Bug Lets Local Guest OS Users Deny Service on the Host OS PLATFORM: This vulnerability effects only Xen 4.0 and 4.1. Xen 3.4 and earlier and xen-unstable are not vulnerable. ABSTRACT: A vulnerability was reported in Xen. A local user on a guest operating system can cause denial of service conditions on the host. reference LINKS: Xen Security Announcements SecurityTracker Alert ID: 1027365 seclists.org CVE-2012-3433 IMPACT ASSESSMENT: Medium Discussion: An HVM guest is able to manipulate its physical address space such that tearing down the guest takes an extended period amount of time searching

171

Rare-Earth Surface Alloying: A New Phase for GdAu2 M. J. Verstraete,1,2  

E-Print Network (OSTI)

refrigeration, are made pos- sible by an unusual group of elements: the rare earths (REs). The rare earthsRare-Earth Surface Alloying: A New Phase for GdAu2 M. Corso,1 M. J. Verstraete,1,2 F. Schiller,1 M. Gadolinium is a borderline rare earth, which is naturally ferromagnetic but can easily switch to different

172

Short Paper submitted to Bicycle Session at T2M Madrid 2012 Historical factors for better cycling  

E-Print Network (OSTI)

1 Short Paper submitted to Bicycle Session at T2M Madrid 2012 Historical factors for better, the bicycle as a transport mode has focused little historical research, at least available sources relating to cycling for transport1. The bicycle fleet is well

Paris-Sud XI, Université de

173

Argonne CNM: Proximal Probes Capabilities  

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

Proximal Probes Proximal Probes Capabilities Omicron VT-AFM XA microscope scanning tunneling microscope VIew high-resolution image. Variable-temperature, ultra-high-vacuum, atomic force microscope/scanning tunneling microscope: Omicron VT-AFM XA (N. Guisinger, Electronic & Magnetic Materials & Devices Group) Measurement modes include: Contact and non-contact AFM Magnetic force microscopy (MFM) Scanning tunneling spectroscopy Preparation tools include: Resistive sample heating Direct current heating E-beam heating Sputter ion etching Gas dosing E-beam evaporation An analysis chamber contains combined four-grid LEED/Auger optics Omicron nanoprobe View high-resolution image Scanning probe/scanning electron microscopy: Omicron UHV Nanoprobe (N. Guisinger, Electronic & Magnetic Materials & Devices Group)

174

Hand-held survey probe  

DOE Patents (OSTI)

A system for providing operational feedback to a user of a detection probe may include an optical sensor to generate data corresponding to a position of the detection probe with respect to a surface; a microprocessor to receive the data; a software medium having code to process the data with the microprocessor and pre-programmed parameters, and making a comparison of the data to the parameters; and an indicator device to indicate results of the comparison. A method of providing operational feedback to a user of a detection probe may include generating output data with an optical sensor corresponding to the relative position with respect to a surface; processing the output data, including comparing the output data to pre-programmed parameters; and indicating results of the comparison.

Young, Kevin L. (Idaho Falls, ID) [Idaho Falls, ID; Hungate, Kevin E. (Idaho Falls, ID) [Idaho Falls, ID

2010-02-23T23:59:59.000Z

175

Design and Performance of NSTX Movable GDC Probe  

SciTech Connect

The NSTX GDC system has been improved by replacing one of the two fixed anodes with a Movable GDC Probe (MGP) anode that can be inserted 1.2 m to about midway between the inner and outer vessel walls. The purpose was to provide more spatially uniform HeGDC for improving discharge stability and reliability. The MGP has been used reliably between every discharge during the last two NSTX experimental campaigns. It has also been used to apply HeGDC assisted boronization, and more recently, HeGDC assisted lithiumization. The MGP has contributed to improved NSTX performance during long pulse and H-mode discharges, and enabled a faster discharge repetition rate.

Kugel, H W; Bell, M; Blanchard, W; Gates, D; Gernhardt, R; Holoman, T; Labik, G; Provost, T; Roquemore, A L

2007-06-14T23:59:59.000Z

176

Nuclear Physics with Electroweak Probes  

E-Print Network (OSTI)

In recent years, the italian theoretical Nuclear Physics community has played a leading role in the development of a unified approach, allowing for a consistent and fully quantitative description of the nuclear response to electromagnetic and weak probes. In this paper I review the main achievements in both fields, point out some of the open problems, and outline the most promising prospects.

Omar Benhar

2009-02-26T23:59:59.000Z

177

Scanning Probe Alloying Nanolithography (SPAN)  

E-Print Network (OSTI)

or silicon nitride. Probes shapes can be pyramidal or conical and may be sharpened. Figure 1.8. Two kinds of cantilevers; triangle and rectangle shapes. (Courtesy of PNI) 1.2.7. Mode The AFM become much more versatile and capable than before...

Lee, Hyungoo

2010-07-14T23:59:59.000Z

178

Enforcement Letter, September 6, 2007, CH2M Hill Hanford Group Potential Violations of Nuclear Safety Requirements  

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

6, 2007 6, 2007 Mr. John Fulton Chief Executive Officer CH2M Hill Hanford Group, Inc. 2440 Stevens Drive Richland, Washington 99352 Dear Mr. Fulton: The Department of Energy (DOE) held an Enforcement Conference on August 29, 2006, with CH2M Hill Hanford Group (CHG) to discuss potential violations of nuclear safety requirements described in our Investigation Summary Report dated July 26, 2006. At that time, DOE elected to defer a decision on a potential quality improvement violation related to recurring radiological events and deficiencies in the identification and control of radiological hazards at the Tank Farms. This decision was based upon the fact that CHG senior management had initiated radiological work improvements but insufficient data was available to assess their effectiveness. On July 12, 2007, Office of Enforcement

179

Review of the Hanford Site CH2M Hill Plateau Remediation Company Implementation Verification Review Processes, November 2012  

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

Independent Oversight Review Independent Oversight Review of the Hanford Site CH2M Hill Plateau Remediation Company Implementation Verification Review Processes November 2012 Office of Safety and Emergency Management Evaluations Office of Enforcement and Oversight Office of Health, Safety and Security U.S. Department of Energy Table of Contents 1.0 Purpose ................................................................................................................................................... 1 2.0 Background ............................................................................................................................................ 1 3.0 Scope...................................................................................................................................................... 2

180

Review of the Hanford Site CH2M Hill Plateau Remediation Company Implementation Verification Review Processes, November 2012  

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

Independent Oversight Review Independent Oversight Review of the Hanford Site CH2M Hill Plateau Remediation Company Implementation Verification Review Processes November 2012 Office of Safety and Emergency Management Evaluations Office of Enforcement and Oversight Office of Health, Safety and Security U.S. Department of Energy Table of Contents 1.0 Purpose ................................................................................................................................................... 1 2.0 Background ............................................................................................................................................ 1 3.0 Scope...................................................................................................................................................... 2

Note: This page contains sample records for the topic "activity 2-m probe" 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

Plasma Physics and Conlrullrd Fusion. Vol. 34, No.13. pp. 2M5 10 2070. 1992 Ptinlcd in Fnai Belain.  

E-Print Network (OSTI)

Plasma Physics and Conlrullrd Fusion. Vol. 34, No.13. pp. 2M5 10 2070. 1992 Ptinlcd in Fnai Belain-DIMENSIONAL PLASMA TURBULENCE H.L. P&seli', E.A. Coutsias', T. Huld3, J.P. Lynov, A.H. Nielsen, and J. Juul Rasmussen of the cross- field electrostatic Kelvin-Hclmholtz instability in a strongly magnetized plasma. The presence

Coutsias, Evangelos

182

Low-energy U(1) x USp(2M) gauge theory from simple high-energy gauge group  

E-Print Network (OSTI)

We give an explicit example of the embedding of a near BPS low-energy (U(1) x USp(2M))/Z_2 gauge theory into a high-energy theory with a simple gauge group and adjoint matter content. This system possesses degenerate monopoles arising from the high-energy symmetry breaking as well as non-Abelian vortices due to the symmetry breaking at low energies. These solitons of different codimensions are related by the exact homotopy sequences.

Sven Bjarke Gudnason; Kenichi Konishi

2010-02-04T23:59:59.000Z

183

Cantilevered probe detector with piezoelectric element  

DOE Patents (OSTI)

A disclosed chemical detection system for detecting a target material, such as an explosive material, can include a cantilevered probe, a probe heater coupled to the cantilevered probe, and a piezoelectric element disposed on the cantilevered probe. The piezoelectric element can be configured as a detector and/or an actuator. Detection can include, for example, detecting a movement of the cantilevered probe or a property of the cantilevered probe. The movement or a change in the property of the cantilevered probe can occur, for example, by adsorption of the target material, desorption of the target material, reaction of the target material and/or phase change of the target material. Examples of detectable movements and properties include temperature shifts, impedance shifts, and resonant frequency shifts of the cantilevered probe. The overall chemical detection system can be incorporated, for example, into a handheld explosive material detection system.

Adams, Jesse D; Sulchek, Todd A; Feigin, Stuart C

2013-04-30T23:59:59.000Z

184

Spring Semester, Course Title: Scanned Probe Techniques  

E-Print Network (OSTI)

: a fundamental understanding of the theoretical underpinnings behind each scanned probe technique Probe Microscopy: Atomic Scale Engineering by Forces and Currents - Adam Foster and Werner Hofer Applied Scanning Probe Methods (Vol. 1-13) ­ Bharat Bhushan, ed. Springer Handbook of Nanotechnology - Bharat

Sherrill, David

185

Probing black holes with constellation-X  

Science Journals Connector (OSTI)

Constellation-X is a premiere X-ray spectroscopy mission due to launch within the next decade. With a factor of 100 increase in sensitivity over current X-ray spectroscopy missions and an excellent energy resolution of 2 eV at 6 keV one of the prime science goals of the mission will be to observe activity near the black hole event horizon by measuring changes in the Fe K? fluorescence emission line profile and time-linked intensity changes between the line and the continuum. Detailed variability studies with Constellation-X will allow us to reconstruct images of the accretion disk probe the effects of strong gravity in the vicinity of black holes and measure black hole mass and spin via deconvolution of the line profile.

Kimberly A. Weaver

2001-01-01T23:59:59.000Z

186

IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 42, NO. 9, SEPTEMBER 2007 2021 A 0.2-mW 2-Mb/s Digital Transceiver Based  

E-Print Network (OSTI)

IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 42, NO. 9, SEPTEMBER 2007 2021 A 0.2-mW 2-Mb/s Digital rate of 1.1 10 7, dissipating only 0.2 mW from a 1-V supply generated by a 1.5-V battery. Index Terms body, corresponding to 1­2 m. Moreover, it should be powered by a very small battery in order

Yoo, Hoi-Jun

187

Memorandum, CH2M HG Idaho, LLC, Request for Variance to Title 10 Code of Federal Regulations part 851, "Worker Safety and Health"  

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

CH2M HG Idaho, LLC, Request for Variance to Title 10 Code of Federal Regulations part 851, "Worker Safety and Health"

188

Downhole probes evaluate cavern integrity  

SciTech Connect

Obtaining natural-gas storage caverns` pressures and temperatures with downhole probes has allowed TransGas Ltd., Regina, to monitor and evaluate cavern integrity. TransGas has more than 5 years` experience with the devices. The acquired data have also helped determine gas-in-place inventory and confirm and assess changes in spatial volumes. These changes may have resulted from cavern creep (shrinkage or closure) or downhole abnormality such as fluid infill or collapse of the side walls or roof. This first of two articles presents background and many of the details and lessons to date of TransGas` cavern gas-storage probe program; the conclusion describes a specific storage site with some results.

Crossley, N.G. [TransGas Ltd., Regina, Saskatchewan (Canada)

1997-03-03T23:59:59.000Z

189

Ethics of reproductive technologies probed  

Science Journals Connector (OSTI)

Ethics of reproductive technologies probed ... Creation of human reproductive technologiessuch as in-vitro fertilization, cryopreservation of embryos, and surrogate motherhood has advanced far more rapidly than development of legal, social, and ethical frameworks to deal with the wave of issues raised. ... The 11-member panel, chaired by Howard W. Jones Jr. of Eastern Virginia Medical School, includes physicians, scientists, lawyers, a theologian, and an ethicist. ...

1986-09-15T23:59:59.000Z

190

pH Meter probe assembly  

DOE Patents (OSTI)

An assembly for mounting a pH probe in a flowing solution, such as a sanitary sewer line, which prevents the sensitive glass portion of the probe from becoming coated with grease, oil, and other contaminants, whereby the probe gives reliable pH indication over an extended period of time. The pH probe assembly utilizes a special filter media and a timed back-rinse feature for flushing clear surface contaminants of the filter. The flushing liquid is of a known pH and is utilized to check performance of the probe.

Hale, Charles J. (San Jose, CA)

1983-01-01T23:59:59.000Z

191

Structure-Activity Relationships in NH3-SCR over Cu-SSZ-13 as...  

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

Structure-Activity Relationships in NH3-SCR over Cu-SSZ-13 as Probed by Reaction Kinetics and EPR Studies. Structure-Activity Relationships in NH3-SCR over Cu-SSZ-13 as Probed by...

192

Effect of microwave reflection from the region of electron cyclotron resonance heating in the L-2M stellarator  

SciTech Connect

In experiments on electron cyclotron resonance (ECR) heating of plasma at the second harmonic of the electron gyrofrequency in the L-2M stellarator, the effect of partial reflection of high-power gyrotron radiation from the ECR heating region located in the center of the plasma column was revealed. The reflection coefficient is found to be on the order of 10{sup ?3}. The coefficient of reflection of an extraordinary wave from the second-harmonic ECR region is calculated in the one-dimensional full-wave model. The calculated and measured values of the reflection coefficient are found to coincide in order of magnitude.

Batanov, G. M.; Borzosekov, V. D.; Kolik, L. V.; Konchekov, E. M.; Malakhov, D. V.; Petrov, A. E.; Sarksyan, K. A.; Sakharov, A. S., E-mail: sakh@fpl.gpi.ru; Skvortsova, N. N.; Stepakhin, V. D.; Kharchev, N. K. [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)] [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)

2013-11-15T23:59:59.000Z

193

Probing  

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the understanding of this family of compounds is YMnO 3 , which has a ferrielectric transition at T C 900 K. 3-5 This gives rise to a small distortion of the two-dimensional...

194

All Sky Camera, LIDAR and Electric Field Meter: auxiliary instruments for the ASTRI SST-2M prototype  

E-Print Network (OSTI)

ASTRI SST-2M is the end-to-end prototype telescope of the Italian National Institute of Astro- physics, INAF, designed to investigate the 10-100 TeV band in the framework of the Cherenkov Telescope Array, CTA. The ASTRI SST-2M telescope has been installed in Italy in September 2014, at the INAF ob- serving station located at Serra La Nave on Mount Etna. The telescope is foreseen to be completed and fully operative in spring 2015 including auxiliary instrumentation needed to support both operations and data anal- ysis. In this contribution we present the current status of a sub-set of the auxiliary instruments that are being used at the Serra La Nave site, namely an All Sky Camera, an Electric Field Meter and a Raman Lidar devoted, together with further instrumentation, to the monitoring of the atmospheric and environmental conditions. The data analysis techniques under development for these instruments could be applied at the CTA sites, where similar auxiliary instrumentation will be installed.

Leto, Giuseppe; Bellassai, Giancarlo; Bruno, Pietro; Maccarone, Maria Concetta; Martinetti, Eugenio

2015-01-01T23:59:59.000Z

195

INNOVATIVE EDDY CURRENT PROBE FOR MICRO DEFECTS  

SciTech Connect

This paper reports the development of an innovative eddy current (EC) probe, and its application to micro-defects on the root of the Friction Stir Welding (FSW). The new EC probe presents innovative concept issues, allowing 3D induced current in the material, and a lift-off independence. Validation experiments were performed on aluminium alloys processed by FSW. The results clearly show that the new EC probe is able to detect and sizing surface defects about 60 microns depth.

Santos, Telmo G.; Vilaca, Pedro; Quintino, Luisa [IDMEC, Av. Rovisco Pais, 1049-001 Lisbon (Portugal); Santos, Jorge dos [GKSS, Max-Planck-Street 1, D-21502 Geesthacht (Germany); Rosado, Luis [IST, UTL, Av. Rovisco Pais, 1049-001 Lisbon (Portugal)

2010-02-22T23:59:59.000Z

196

Microsoft Word - PumpProbe  

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

Pump/Probe Pump/Probe Resources Available - BE Current Mid 2014 Mid 2016 Beamline X-ray Source Total Total Total NSLS-I 0.25 0.15 0 U4B Bend 0.05 0 0 U4IR Bend 0.2 0.15 0 APS 4.75 4.75 4.75 4-ID-C CPU 0 0 0 7-ID-C&D Undulator 1 1 1 7-BM-B Bend 1 1 1 10-ID-B Undulator 0.5 0.5 0.5 11-ID-D Undulator 1 1 1 14-ID-B Undulator 1 1 1 20-ID Undulator 0.25 0.25 0.25 ALS 3 3 3 4.0.2 EPU 0 0 0 6.0.1 Undulator 1 1 1 6.0.2 Undulator 1 1 1 6.1.2 Bend 0 0 0 9.0.2 Undulator 1 1 1 11.0.1 EPU 0 0 0 11.0.2 EPU 0 0 0 SSRL 0.15 0.45 0.45

197

Free-energy profiles along reduction pathways of MoS2 M-edge and S-edge by dihydrogen: a first-principles study  

E-Print Network (OSTI)

We present the results of DFT calculations of free energy profiles along the reaction pathways starting from 50% coverage of MoS2 M-edge and 100% coverage of S-edge by sulfur, and leading to 37% coverage, i.e. creation of anionic vacancies, upon reduction by dihydrogen and production of H2S. Significant entropic and enthalpic corrections to electronic energies are deduced from the sets of normal modes vibration frequencies computed for all stationary and transition states. On that basis, we revisit and discuss the surface phase diagrams for M- and S- edges as a function of temperature, H2 partial pressure and H2S/H2 molar ratio, with respect to ranges of conditions relevant to industrial hydrotreating operations. We show that in such conditions, anionic vacancies on the M-edge, and surface SH groups on the M- and S- edges, may coexist at equilibrium. Moderate activation barriers connect stationary states along all paths explored.

Prodhomme, Pierre-Yves; Toulhoat, Herv; 10.1016/j.jcat.2011.03.017

2011-01-01T23:59:59.000Z

198

Synthetic investigation of small-molecule probes.  

E-Print Network (OSTI)

??A series of small molecules was synthesized to probe three protein targets in order to elucidate the key small molecule-protein interactions required for potency. Triclosan (more)

Bromba, Caleb

2012-01-01T23:59:59.000Z

199

Probing Organic Transistors with Infrared Beams  

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Probing Organic Transistors with Infrared Beams Print Silicon-based transistors are well-understood, basic components of contemporary electronic technology. In contrast, there is...

200

Testing of the method for water microleakage detection from OH hydroxyl spectral lines at the L-2M stellarator  

SciTech Connect

Results are presented from L-2M stellarator experiments on testing a possible method for detection of water microleakages in the cooling system of the first wall and vacuum chamber of ITER. The method consists in the spectroscopic detection of spectral lines of the OH hydroxyl, which forms via the dissociation of water molecules in plasma. Emission in the spectral band of 305-310 nm can be detected even at water leakage rates less than 10{sup -4} Pa m{sup 3}/s. Chemical reactions between water and boron compounds on the vacuum chamber wall delay the detection of leakages up to {approx}2000 s. A similar phenomenon can be expected when a leakage will occur in ITER, where the materials suggested for the first wall (Be, Li) can also chemically react with water.

Voronov, G. S., E-mail: voronov@fpl.gpi.ru; Berezhetskii, M. S.; Bondar', Yu. F.; Vafin, I. Yu.; Vasil'kov, D. G.; Voronova, E. V.; Grebenshchikov, S. E.; Grishina, I. A.; Larionova, N. F.; Letunov, A. A.; Logvinenko, V. P.; Meshcheryakov, A. I.; Pleshkov, E. I.; Khol'nov, Yu. V.; Fedyanin, O. I.; Tsygankov, V. A.; Shchepetov, S. V. [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)] [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation); Kurnaev, V. A.; Vizgalov, I. V.; Urusov, V. A. [National Research Nuclear University Moscow Engineering Physics Institute (Russian Federation)] [National Research Nuclear University Moscow Engineering Physics Institute (Russian Federation); and others

2013-04-15T23:59:59.000Z

Note: This page contains sample records for the topic "activity 2-m probe" 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

Potential Distribution in Functionalized Graphene Devices Probed by Kelvin Probe Force Microscopy  

E-Print Network (OSTI)

graphene sheet (FGS) [1] can be utilized in sensor technology, batteries and supercapacitors becausePotential Distribution in Functionalized Graphene Devices Probed by Kelvin Probe Force Microscopy Institute of Physics. Related Articles Ferromagnetic fluctuation in doped armchair graphene nanoribbons J

Aksay, Ilhan A.

202

Cavitation controlled acoustic probe for fabric spot cleaning and moisture monitoring  

DOE Patents (OSTI)

A method and apparatus are provided for monitoring a fabric. An acoustic probe generates acoustic waves relative to the fabric. An acoustic sensor, such as an accelerometer is coupled to the acoustic probe for generating a signal representative of cavitation activity in the fabric. The generated cavitation activity representative signal is processed to indicate moisture content of the fabric. A feature of the invention is a feedback control signal is generated responsive to the generated cavitation activity representative signal. The feedback control signal can be used to control the energy level of the generated acoustic waves and to control the application of a cleaning solution to the fabric.

Sheen, Shuh-Haw (Naperville, IL); Chien, Hual-Te (Naperville, IL); Raptis, Apostolos C. (Downers Grove, IL)

1997-01-01T23:59:59.000Z

203

induction-mode probe | EMSL  

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

The Role of FeS in Initial Activation and Performance Degradation of Na-NiCl2 Batteries. Abstract: The role of iron sulfide (FeS) in initial cell activation and degradation in the...

204

CFN Operations and Safety Awareness (COSA) Checklist Proximal Probes Facility  

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

Proximal Probes Facility Proximal Probes Facility Building 735 This COSA form must be completed for all experimenters working in the CFN and must be submitted to the CFN User Office for badge access. CFN Safety Awareness Policy: Each user must be instructed in the safe procedures in CFN related activities. CFN Facility Laboratory personnel shall keep readily available all relevant instructions and safety literature. Employee/Guest Name Life/Guest Number Department/Division ES&H Coordinator/Ext. Facility Manager COSA Trainer Guest User Staff USER ADMINISTRATION Checked in at User Administration and has valid BNL ID badge Safety Approval Form (SAF) approved. Training requirements completed (Indicate additional training specified in SAF or ESR in lines provided below): Select ESRs

205

MERIT Pump/Probe Data OutlineOutline  

E-Print Network (OSTI)

MERIT Pump/Probe Data Analysis OutlineOutline The pump/probe program Particle detector response correction Pump/probe analysis results NFMCC Collaboration Meeting , LBNL, January 26, 2009 Ilias Efthymiopoulos - CERN #12;The pump/probe program #12;The pump/probe program Use of the CERN PS flexibility

McDonald, Kirk

206

Scanning Probe Microscopy Studies of Carbon Nanotubes  

E-Print Network (OSTI)

Scanning Probe Microscopy Studies of Carbon Nanotubes Teri Wang Odom1 , Jason H. Hafner1 relationship between Single-Walled Carbon Nanotube (SWNT) atomic structure and electronic properties, (2, properties and application of carbon nanotube probe microscopy tips to ultrahigh resolution and chemically

Odom, Teri W.

207

Nuclear Imaging Probes: from Bench to Bedside  

Science Journals Connector (OSTI)

...specific imaging probes is the nuclear fuel for molecular imaging by positron emission...cancer. Cancer Res 2001;61:110-7. 24 Price DT, Coleman RE, Liao RP, Robertson CN...specific imaging probes is the nuclear fuel for molecular imaging by positron emission...

Hans-Jrgen Wester

2007-06-15T23:59:59.000Z

208

Proximal Probes | Center for Functional Nanomaterials  

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

Proximal Probes Facility Proximal Probes Facility proximal probes The Proximal Probes Facility consists of laboratories for microscopy, spectroscopy, and probing of nanostructured materials and their functional properties. At the core of the facility is a suite of instruments for in-situ microscopy of surfaces and nanostructures under extreme conditions, e.g., in reactive gases, and at high or low temperatures. Unique instruments enable in-situ and in-operando studies of surface chemistry and catalysis at pressures from ultrahigh vacuum (UHV) to 5 bar via complementary scanning tunneling microscopy imaging and photoelectron spectroscopy, coupled with real-time gas analysis. Several UHV systems are available for scanning tunneling and atomic force microscopy, as well as low-energy electron microscopy and synchrotron photoelectron microscopy. A

209

Rugged fiber optic probe for raman measurement  

DOE Patents (OSTI)

An optical probe for conducting light scattering analysis is disclosed. The probe comprises a hollow housing and a probe tip. A fiber assembly made up of a transmitting fiber and a receiving bundle is inserted in the tip. A filter assembly is inserted in the housing and connected to the fiber assembly. A signal line from the light source and to the spectrometer also is connected to the filter assembly and communicates with the fiber assembly. By using a spring-loaded assembly to hold the fiber connectors together with the in-line filters, complex and sensitive alignment procedures are avoided. The close proximity of the filter assembly to the probe tip eliminates or minimizes self-scattering generated by the optical fiber. Also, because the probe can contact the sample directly, sensitive optics can be eliminated.

O'Rourke, Patrick E. (Martinez, GA); Toole, Jr., William R. (Aiken, SC); Nave, Stanley E. (Evans, GA)

1998-01-01T23:59:59.000Z

210

Individual quantum probes for optimal thermometry  

E-Print Network (OSTI)

The unknown temperature of a sample may be estimated with minimal disturbance by putting it in thermal contact with an individual quantum probe. If the interaction time is sufficiently long so that the probe thermalizes, the temperature can be read out directly from its steady state. Here we prove that the optimal quantum probe, acting as a thermometer with maximal thermal sensitivity, is an effective two-level atom with a maximally degenerate excited state. When the total interaction time is insufficient to produce full thermalization, we optimize the estimation protocol by breaking it down into sequential stages of probe preparation, thermal contact and measurement. We observe that frequently interrogated probes initialized in the ground state achieve the best performance. For both fully and partly thermalized thermometers, the sensitivity grows significantly with the number of levels, though optimization over their energy spectrum remains always crucial.

Luis A. Correa; Mohammad Mehboudi; Gerardo Adesso; Anna Sanpera

2014-11-23T23:59:59.000Z

211

Methods for radiation detection and characterization using a multiple detector probe  

DOE Patents (OSTI)

Apparatuses, methods, and systems relating to radiological characterization of environments are disclosed. Multi-detector probes with a plurality of detectors in a common housing may be used to substantially concurrently detect a plurality of different radiation activities and types. Multiple multi-detector probes may be used in a down-hole environment to substantially concurrently detect radioactive activity and contents of a buried waste container. Software may process, analyze, and integrate the data from the different multi-detector probes and the different detector types therein to provide source location and integrated analysis as to the source types and activity in the measured environment. Further, the integrated data may be used to compensate for differential density effects and the effects of radiation shielding materials within the volume being measured.

Akers, Douglas William; Roybal, Lyle Gene

2014-11-04T23:59:59.000Z

212

MagLab - MagLab Dictionary: Probe (Transcript)  

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

means, "stick on which you put the sample," but probe sounds more scientific Listen Audio version Related Links Meet the Probes A magnet without a probe is like a drill without...

213

CH2M Hill Hanford Group, Inc. Standards and Requirements Identification Document (SRID) Requirements Management System and Requirements Specification  

SciTech Connect

The current Tank Farm Contractor (TFC) for the U. S. Department of Energy, Office of River Protection (ORP), River Protection Project (RPP), CH2M Hill Hanford Group, Inc. (CHG), will use a computer based requirements management system. The system will serve as a tool to assist in identifying, capturing, and maintaining the Standards/Requirements Identification Document (S/RID) requirements and links to implementing procedures and other documents. By managing requirements as one integrated set, CHG will be able to carry out its mission more efficiently and effectively. CHG has chosen the Dynamic Object Oriented Requirements System (DOORS{trademark}) as the preferred computer based requirements management system. Accordingly, the S/RID program will use DOORS{trademark}. DOORS{trademark} will replace the Environmental Requirements Management Interface (ERMI) system as the tool for S/RID data management. The DOORS{trademark} S/RID test project currently resides on the DOORSTM test server. The S/RID project will be migrated to the DOORS{trademark} production server. After the migration the S/RID project will be considered a production project and will no longer reside on the test server.

JOHNSON, A.L.

2000-11-30T23:59:59.000Z

214

Probing Fukushima with cosmic rays should help speed cleanup...  

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Probing Fukushima with cosmic rays Probing Fukushima with cosmic rays should help speed cleanup of damaged plant The initiative could reduce the time required to clean up the...

215

Using Rare Gas Permeation to Probe Methanol Diffusion near the...  

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

Rare Gas Permeation to Probe Methanol Diffusion near the Glass Transition Temperature. Using Rare Gas Permeation to Probe Methanol Diffusion near the Glass Transition Temperature....

216

Contribution of atom-probe tomography to a better understanding...  

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

atom-probe tomography to a better understanding of glass alteration mechanisms: application to a nuclear glass Contribution of atom-probe tomography to a better understanding of...

217

Understanding Atom Probe Tomography of Oxide-Supported Metal...  

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

Atom Probe Tomography of Oxide-Supported Metal Nanoparticles by Correlation with Atomic Resolution Electron Understanding Atom Probe Tomography of Oxide-Supported Metal...

218

Instrument Series: Microscopy Atom Probe The LEAP  

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

Atom Probe Atom Probe The LEAP ® 4000 XHR local electrode atom probe tomography instrument enabled the first- ever comprehensive and accurate 3-D chemical imaging studies of low electrical conductivity materials, such as ceramics, semiconductors and oxides. The LEAP capability is assisting EMSL's efforts to further scientific advancements in interface analysis and microstructural characterization, providing a new tool for understanding the relationship between the nanoscale structure of materials and their macroscopic properties. Research Applications Geochemistry - Studying chemical processes that compose rocks and soils has long been used to determine matter cycles and transport in the environment, which supports critical EMSL research in areas including bioremediation.

219

Characterization of Fiber Optic CMM Probe System  

SciTech Connect

This report documents a study completed on the fiber optic probe system that is a part of the Werth optical CMM. This study was necessary due to a lack of documentation from the vendor for the proper use and calibration of the fiber probe, and was performed in support of the Lithographie Galvanoformung Abformung (LIGA) development program at the FM&T. As a result of this study, a better understanding of the fiber optic probe has been developed, including guidelines for its proper use and calibration.

K.W.Swallow

2007-05-15T23:59:59.000Z

220

Acoustic probing of salt using sonar  

E-Print Network (OSTI)

ACOUSTIC PROBING OF SALT USING SONAR A Thesis by KENNETH BRYAN BUTLER Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE Oecember 1977 Major Subject...: Geophysics ACOUSTIC PROBING OF SALT USING SONAR A Thesis by KENNETH BRYAN BUTLER Approved as to style and content by: C airman of Com ttee ea of e r nt em er ember December 1977 ABSTRACT Acoustic Probing of Salt Using Sonar. (December 1977...

Butler, Kenneth Bryan

2012-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "activity 2-m probe" 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

A stochastic programming approach for optimal microgrid economic operation under uncertainty using 2m?+?1 point estimate method  

Science Journals Connector (OSTI)

By increasing concern over climate change and the security of energy supplies wind power and photovoltaic are emerging as important sources of electrical energy throughout the world. The wind speed at a given location is continuously varying. There are changes in the annual mean wind speed from year to year (annual) changes with season (seasonal) with passing weather systems (synoptic) on a daily basis (diurnal) and from second to second (turbulence). Common sense tells us that irradiation varies regionally with the changing seasons and hourly with the daily variation of the sun's evaluation. This paper proposes a new method for optimal management of MicroGrids under uncertain environments. In this study the 2m?+?1 point estimate method is used to model the uncertainty in the load demands the market prices and the electric power generation of the wind farms and the photovoltaic systems. The Weibull Beta and normal distributions are used to handle the uncertain input variables in this study. Moreover a Self-Adaptive Bee Swarm Optimization algorithm is presented to achieve an optimal-operational planning with regard to the cost minimization. In the proposed framework four different moving patterns are suggested in order to make an adaptive and robust optimization algorithm for different problems with different fitness landscape. In the devised method each bee self-adaptively chooses one of the proposed moving patterns according to a probability model to update its position. The proposed probability model is based on the ability of each strategy to generate more optimal solutions in the past generations. The efficiency of the method is validated on a typical microgrid.

2013-01-01T23:59:59.000Z

222

Modulated microwave microscopy and probes used therewith  

DOE Patents (OSTI)

A microwave microscope including a probe tip electrode vertically positionable over a sample and projecting downwardly from the end of a cantilever. A transmission line connecting the tip electrode to the electronic control system extends along the cantilever and is separated from a ground plane at the bottom of the cantilever by a dielectric layer. The probe tip may be vertically tapped near or at the sample surface at a low frequency and the microwave signal reflected from the tip/sample interaction is demodulated at the low frequency. Alternatively, a low-frequency electrical signal is also a non-linear electrical element associated with the probe tip to non-linearly interact with the applied microwave signal and the reflected non-linear microwave signal is detected at the low frequency. The non-linear element may be semiconductor junction formed near the apex of the probe tip or be an FET formed at the base of a semiconducting tip.

Lai, Keji; Kelly, Michael; Shen, Zhi-Xun

2012-09-11T23:59:59.000Z

223

Surface sampling concentration and reaction probe  

DOE Patents (OSTI)

A method of analyzing a chemical composition of a specimen is described. The method can include providing a probe comprising an outer capillary tube and an inner capillary tube disposed co-axially within the outer capillary tube, where the inner and outer capillary tubes define a solvent capillary and a sampling capillary in fluid communication with one another at a distal end of the probe; contacting a target site on a surface of a specimen with a solvent in fluid communication with the probe; maintaining a plug volume proximate a solvent-specimen interface, wherein the plug volume is in fluid communication with the probe; draining plug sampling fluid from the plug volume through the sampling capillary; and analyzing a chemical composition of the plug sampling fluid with an analytical instrument. A system for performing the method is also described.

Van Berkel, Gary J; Elnaggar, Mariam S

2013-07-16T23:59:59.000Z

224

Variable Temperature Scanning Probe Microscope | EMSL  

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

EMSL's ultra-high vacuum, variable-temperature scanning probe microscope system, or UHV VT SPM, is a state-of-the-art surface science tool comprising multiple complementary...

225

Interferometric Probes of Many-Body Localization  

E-Print Network (OSTI)

We propose a method for detecting many-body localization (MBL) in disordered spin systems. The method involves pulsed coherent spin manipulations that probe the dephasing of a given spin due to its entanglement with a set ...

Knap, M.

226

Catheter based magnetic resonance compatible perfusion probe  

E-Print Network (OSTI)

Neurosurgeons are using a thermal based technique to quantify brain perfusion. The thermal diffusion probe (TDP) technology measures perfusion in a relatively small volume of brain tissue. The neurosurgeon chooses the ...

Toretta, Cara Lynne

2007-01-01T23:59:59.000Z

227

Synthetic active site probes for PKS and NRPS biosynthetic enzymes  

E-Print Network (OSTI)

2006 Meier et al. ARTICLES enzymes of the different species.of modular Biosynthetic enzymes by complementary metabolicpeptide biosynthetic enzymes. Methods Enzymol 458, 219-54 (

Meier, Jordan Leslie

2009-01-01T23:59:59.000Z

228

Synthetic active site probes for PKS and NRPS biosynthetic enzymes  

E-Print Network (OSTI)

7R D VROXWLRQ RI WKH D]LGH PJ PPRO LQ 7+) P/ 33K PJ PPRO DQGM 6\\QWKHVLV RI %LRWLQ$]LGH %LRWLQ PJ PPRO D]LGRHWKDQDPLQH PJIRXQG 7R D VROXWLRQ RI WKH D]LGH E PJ PPRO LQ 7+) P/ 33K PJ

Meier, Jordan Leslie

2009-01-01T23:59:59.000Z

229

AdHoc Probe: End-to-end Capacity Probing in Wireless Ad Hoc Networks  

E-Print Network (OSTI)

AdHoc Probe: End-to-end Capacity Probing in Wireless Ad Hoc Networks Ling-Jyh Chen1 , Tony Sun2 and systematic study in ad hoc, multihop wireless networks is still lacking. Yet the rate of a wireless link can deployment. In this paper, we present AdHoc Probe, a packet-pair based technique, to estimate end-to-end path

Chen, Ling-Jyh

230

Fiber optic probe for light scattering measurements  

DOE Patents (OSTI)

This invention is comprised of a fiber optic probe and a method for using the probe for light scattering analyses of a sample. The probe includes a probe body with an inlet for admitting a sample into an interior sample chamber, a first optical fiber for transmitting light from a source into the chamber, and a second optical fiber for transmitting light to a detector such as a spectrophotometer. The interior surface of the probe carries a coating that substantially prevents non-scattered light from reaching the second fiber. The probe is placed in a region where the presence and concentration of an analyte of interest are to be detected, and a sample is admitted into the chamber. Exciting light is transmitted into the sample chamber by the first fiber, where the light interacts with the sample to produce Raman-scattered light. At least some of the Raman- scattered light is received by the second fiber and transmitted to the detector for analysis. Two Raman spectra are measured, at different pressures. The first spectrum is subtracted from the second to remove background effects, and the resulting sample Raman spectrum is compared to a set of stored library spectra to determine the presence and concentration of the analyte.

Nave, S.E.; Livingston, R.R.; Prather, W.S.

1993-01-01T23:59:59.000Z

231

Fiber optic probe for light scattering measurements  

DOE Patents (OSTI)

A fiber optic probe and a method for using the probe for light scattering analyses of a sample. The probe includes a probe body with an inlet for admitting a sample into an interior sample chamber, a first optical fiber for transmitting light from a source into the chamber, and a second optical fiber for transmitting light to a detector such as a spectrophotometer. The interior surface of the probe carries a coating that substantially prevents non-scattered light from reaching the second fiber. The probe is placed in a region where the presence and concentration of an analyte of interest are to be detected, and a sample is admitted into the chamber. Exciting light is transmitted into the sample chamber by the first fiber, where the light interacts with the sample to produce Raman-scattered light. At least some of the Raman-scattered light is received by the second fiber and transmitted to the detector for analysis. Two Raman spectra are measured, at different pressures. The first spectrum is subtracted from the second to remove background effects, and the resulting sample Raman spectrum is compared to a set of stored library spectra to determine the presence and concentration of the analyte.

Nave, Stanley E. (Evans, GA); Livingston, Ronald R. (Aiken, SC); Prather, William S. (Augusta, GA)

1995-01-01T23:59:59.000Z

232

Graphene-coated tapered nanowire infrared probe: a comparison with metal-coated probes  

Science Journals Connector (OSTI)

We propose in this paper a graphene-coated tapered nanowire probe providing strong field enhancement in the infrared regimes. The analytical field distributions and characteristic...

Zhu, Bofeng; Ren, Guobin; Gao, Yixiao; Yang, Yang; Lian, Yudong; Jian, Shuisheng

2014-01-01T23:59:59.000Z

233

C-C Activation in Biphenylene. Synthesis, Structure, and Reactivity of (C5Me5)2M2(2,2-biphenyl) (M ) Rh, Co)  

E-Print Network (OSTI)

of Chemistry, University of Rochester, Rochester, New York 14627 Received December 17, 1996X Carbon-carbon bond remains an elusive target in organometallic chemistry. A few examples have appeared over the past 20 years by sublimation before use. The reaction of 1 with biphenylene was examined in n-octane-d18.11 Biphenylene reacts

Jones, William D.

234

Structural Characterization and Catalytic Activity of Nanosized CexM1-xO2 (M = Zr and Hf) Mixed Oxides  

Science Journals Connector (OSTI)

RS measurements suggest a defective structure of the mixed oxides resulting in the formation of oxygen vacancies. ... Improvements in such features are currently in demand for designing better catalytic cartridges for new-generation cleaner cars. ...

Benjaram M. Reddy; Pankaj Bharali; Pranjal Saikia; Sang-Eon Park; Maurits W. E. van den Berg; Martin Muhler; Wolfgang Grnert

2008-07-16T23:59:59.000Z

235

Property:ExplorationTechnique | Open Energy Information  

Open Energy Info (EERE)

ExplorationTechnique ExplorationTechnique Jump to: navigation, search Property Name ExplorationTechnique Property Type Page Description The ExplorationTechnique used in the Exploration Activity. Use the form ExplorationTechnique to create new exploration technique pages. Subproperties This property has the following 1 subproperty: A Aeromagnetic Survey At Crump's Hot Springs Area (DOE GTP) Pages using the property "ExplorationTechnique" Showing 25 pages using this property. (previous 25) (next 25) 2 2-M Probe At Alum Area (Kratt, Et Al., 2010) + 2-M Probe Survey + 2-M Probe At Astor Pass Area (Kratt, Et Al., 2010) + 2-M Probe Survey + 2-M Probe At Black Warrior Area (DOE GTP) + 2-M Probe Survey + 2-M Probe At Columbus Salt Marsh Area (Kratt, Et Al., 2010) + 2-M Probe Survey +

236

Mach flow angularity probes for scramjet engine flow path diagnostics  

SciTech Connect

Mach-flow angularity (MFA) probes were developed for use in scramjet flow path probe rakes. Prototype probes were fabricated to demonstrate the assembly processes (numerical control machining, furnace brazing, and electron beam welding). Tests of prototype probes confirmed the thermal durability margins and life cycle. Selected probes were calibrated in air at Mach numbers from 1.75 to 6.0. Acceptance criteria for the production probes stressed thermal durability and pressure (and, consequently, Mach number) measurement quality. This new water-cooled MFA probe has 0.397-cm shaft diameter and is capable of withstanding heat fluxes of 2.724 kW/sq cm.

Jalbert, P.A.; Hiers, R.S. Jr. [Sverdrup Technology, Inc., Arnold AFS, TN (United States)

1993-12-31T23:59:59.000Z

237

Redmond Red as a Redox Probe for the DNA-Mediated Detection of Abasic Sites  

Science Journals Connector (OSTI)

Redmond Red, a fluoropore containing a redox-active phenoxazine core, has been explored as a new electrochemical probe for the detection of abasic sites in double-stranded DNA. The electrochemical behavior of Redmond Red-modified DNA at gold surfaces ...

Marisa C. Buzzeo; Jacqueline K. Barton

2008-10-03T23:59:59.000Z

238

Engineering a Unimolecular DNA-Catalytic Probe for Single Lead Ion Monitoring  

E-Print Network (OSTI)

Engineering a Unimolecular DNA-Catalytic Probe for Single Lead Ion Monitoring Hui Wang, Youngmi Kim reactions. These catalytic DNAs, or DNAzymes, can be activated by metal ions. In this paper, we take advantage of DNA molecular engineering to improve the properties of DNAzymes by designing a unimolecular

Tan, Weihong

239

Reverse Optical Probing (ROPING) of Neocortical Circuits  

E-Print Network (OSTI)

(3 mM MgSO4, 1 mM CaCl2), and allowed to equilibrate to room temperature. Whole-cell recordings in V1 conventional ACSF (1 mM MgSO4, 2 mM CaCl2, 3 mM KCl) with Axopatch 200B (Axon Instruments) and a BVC-700 (Dagan

Columbia University

240

A SAURON STUDYOF STARS ANDGAS IN SABULGES J. FalconBarroso 1# , R. Bacon 2 , M. Bureau 3 , M. Cappellari 1 , R. L. Davies 3 ,  

E-Print Network (OSTI)

A SAURON STUDYOF STARS ANDGAS IN SABULGES J. Falcon­Barroso 1# , R. Bacon 2 , M. Bureau 3 , M. 1996, Falcon­Barroso et al. 2002). A comprehensive description of the stellar and gas kinematics of the complete sample of 24 Sa spiral bulges is presented in Falcon­Barroso et al. (2005). We highlight some

Bureau, Martin

Note: This page contains sample records for the topic "activity 2-m probe" 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

Development of Volume Phase Holographic (VPH) Grism for Visible to Near Infrared Instruments of the 8.2m Subaru Telescope  

E-Print Network (OSTI)

@riken.go.jp; http://atlas.riken.go.jp/~ebizuka/ebi-e.html; http://atlas.riken.go.jp/~ebizuka/ebi.html (Japanese (FOCAS) is one of its seven common-use facility instruments of the 8.2m Subaru Telescope on Mauna Kea

Iye, Masanori

242

Lightning strokes can probe the ionosphere  

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

Lightning Strokes Can Probe Ionosphere Lightning Strokes Can Probe Ionosphere Lightning strokes can probe the ionosphere Researchers have made measurements during thunderstorms to study the affect of lightning on the lower ionosphere and radiofrequency signals. April 11, 2013 Lightning. Credit: National Oceanic and Atmospheric Administration (NOAA) The team found that the electron density in the lower ionosphere decreased in response to lightning discharges. Thunderstorms, and the resulting partially ionized plasma of the ionosphere, can distort radio signals traveling to satellites important to communications, navigation or national security Los Alamos researchers and a collaborator have made measurements during thunderstorms to study the affect of lightning on the lower ionosphere and radiofrequency signals. This study supports one theory for how tropospheric

243

Probing Organic Transistors with Infrared Beams  

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

Probing Organic Transistors with Infrared Beams Print Probing Organic Transistors with Infrared Beams Print Silicon-based transistors are well-understood, basic components of contemporary electronic technology. In contrast, there is growing need for the development of electronic devices based on organic polymer materials. Organic field-effect transistors (FETs) are ideal for special applications that require large areas, light weight, and structural flexibility. They also have the advantage of being easy to mass-produce at very low cost. However, even though this class of devices is finding a growing number of applications, electronic processes in organic materials are still not well understood. A group of researchers from the University of California and the ALS has succeeded in probing the intrinsic electronic properties of the charge carriers in organic FETs using infrared spectromicroscopy. The results of their study could help in the future development of sensors, large-area displays, and other plastic electronic components.

244

Lightning strokes can probe the ionosphere  

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

Lightning Strokes Can Probe Ionosphere Lightning Strokes Can Probe Ionosphere Lightning strokes can probe the ionosphere Researchers have made measurements during thunderstorms to study the affect of lightning on the lower ionosphere and radiofrequency signals. April 11, 2013 Lightning. Credit: National Oceanic and Atmospheric Administration (NOAA) The team found that the electron density in the lower ionosphere decreased in response to lightning discharges. Thunderstorms, and the resulting partially ionized plasma of the ionosphere, can distort radio signals traveling to satellites important to communications, navigation or national security Los Alamos researchers and a collaborator have made measurements during thunderstorms to study the affect of lightning on the lower ionosphere and radiofrequency signals. This study supports one theory for how tropospheric

245

Gamma-ray blind beta particle probe  

DOE Patents (OSTI)

An intra-operative beta particle probe is provided by placing a suitable photomultiplier tube (PMT), micro channel plate (MCP) or other electron multiplier device within a vacuum housing equipped with: 1) an appropriate beta particle permeable window; and 2) electron detection circuitry. Beta particles emitted in the immediate vicinity of the probe window will be received by the electron multiplier device and amplified to produce a detectable signal. Such a device is useful as a gamma insensitive, intra-operative, beta particle probe in surgeries where the patient has been injected with a beta emitting radiopharmaceutical. The method of use of such a device is also described, as is a position sensitive such device.

Weisenberger, Andrew G. (Grafton, VA)

2001-01-01T23:59:59.000Z

246

Probing Organic Transistors with Infrared Beams  

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

Probing Organic Transistors with Probing Organic Transistors with Infrared Beams Probing Organic Transistors with Infrared Beams Print Wednesday, 26 July 2006 00:00 Silicon-based transistors are well-understood, basic components of contemporary electronic technology. In contrast, there is growing need for the development of electronic devices based on organic polymer materials. Organic field-effect transistors (FETs) are ideal for special applications that require large areas, light weight, and structural flexibility. They also have the advantage of being easy to mass-produce at very low cost. However, even though this class of devices is finding a growing number of applications, electronic processes in organic materials are still not well understood. A group of researchers from the University of California and the ALS has succeeded in probing the intrinsic electronic properties of the charge carriers in organic FETs using infrared spectromicroscopy. The results of their study could help in the future development of sensors, large-area displays, and other plastic electronic components.

247

Complementarity of future dark energy probes  

Science Journals Connector (OSTI)

......alternative to the standard figure of merit of a survey (Albrecht et al...actually a better figure of merit than the one put forward by...probes discussed have their merits, but weak lensing and baryon...simulation data. We sincerely thank Nick Kaiser for providing us information......

Jiayu Tang; Filipe B. Abdalla; Jochen Weller

2011-09-21T23:59:59.000Z

248

High temperature electrochemical corrosion rate probes  

SciTech Connect

Corrosion occurs in the high temperature sections of energy production plants due to a number of factors: ash deposition, coal composition, thermal gradients, and low NOx conditions, among others. Electrochemical corrosion rate (ECR) probes have been shown to operate in high temperature gaseous environments that are similar to those found in fossil fuel combustors. ECR probes are rarely used in energy production plants at the present time, but if they were more fully understood, corrosion could become a process variable at the control of plant operators. Research is being conducted to understand the nature of these probes. Factors being considered are values selected for the Stern-Geary constant, the effect of internal corrosion, and the presence of conductive corrosion scales and ash deposits. The nature of ECR probes will be explored in a number of different atmospheres and with different electrolytes (ash and corrosion product). Corrosion rates measured using an electrochemical multi-technique capabilities instrument will be compared to those measured using the linear polarization resistance (LPR) technique. In future experiments, electrochemical corrosion rates will be compared to penetration corrosion rates determined using optical profilometry measurements.

Bullard, Sophie J.; Covino, Bernard S., Jr.; Holcomb, Gordon R.; Ziomek-Moroz, M.

2005-09-01T23:59:59.000Z

249

Evaluation of the optical cross talk level in the SiPMs adopted in ASTRI SST-2M Cherenkov Camera using EASIROC front-end electronics  

E-Print Network (OSTI)

ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana), is a flagship project of the Italian Ministry of Education, University and Research whose main goal is the design and construction of an end-to-end prototype of the Small Size of Telescopes of the Cherenkov Telescope Array. The prototype, named ASTRI SST-2M, will adopt a wide field dual mirror optical system in a Schwarzschild-Couder configuration to explore the VHE range of the electromagnetic spectrum. The camera at the focal plane is based on Silicon Photo-Multipliers detectors which is an innovative solution for the detection astronomical Cherenkov light. This contribution reports some preliminary results on the evaluation of the optical cross talk level among the SiPM pixels foreseen for the ASTRI SST-2M camera.

Impiombato, D; Mineo, T; Agnetta, G; Biondo, B; Catalano, O; Gargano, C; La Rosa, G; Russo, F; Sottile, G; Belluso, M; Billotta, S; Bonanno, G; Garozzo, S; Marano, D; Romeo, G

2013-01-01T23:59:59.000Z

250

Gamma ray bursts as probes of the first stars  

Science Journals Connector (OSTI)

The redshift where the first stars formed is an important and unknown milestone in cosmological structure formation. The evidence linking gamma ray bursts (GRBs) with star formation activity implies that the first GRBs occurred shortly after the first stars formed. Gamma ray bursts and their afterglows may thus offer a unique probe of this epoch because they are bright from gamma ray to radio wavelengths and should be observable to very high redshift. Indeed our ongoing near-IR followup programs already have the potential to detect bursts at redshift z?10. In these proceedings we discuss two distinct ways of using GRBs to probe the earliest star formation. First direct GRB counts may be used as a proxy for star formation rate measurements. Second high energy cutoffs in the GeV spectra of gamma ray bursts due to pair production with high redshift optical and ultraviolet background photons contain information on early star formation history. The second method is observationally more demanding but also more rewarding because each observed pair creation cutoff in a high redshift GRB spectrum will tell us about the integrated star formation history prior to the GRB redshift.

James E. Rhoads

2001-01-01T23:59:59.000Z

251

Review of Richland Operations Office and CH2M Hill Plateau Remediation Company and Mission Support Alliance Conduct of Operations, April 2012  

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

Oversight Review of Oversight Review of Richland Operations Office and CH2M HILL Plateau Remediation Company and Mission Support Alliance Conduct of Operations April 2012 Office of Safety and Emergency Management Evaluations Office of Enforcement and Oversight Office of Health, Safety and Security U.S. Department of Energy i Table of Contents 1.0 Purpose ................................................................................................................................................... 1 2.0 Background ............................................................................................................................................ 1 3.0 Scope ...................................................................................................................................................... 2

252

Review of Richland Operations Office and CH2M Hill Plateau Remediation Company and Mission Support Alliance Conduct of Operations, April 2012  

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

Independent Oversight Review of Independent Oversight Review of Richland Operations Office and CH2M HILL Plateau Remediation Company and Mission Support Alliance Conduct of Operations April 2012 Office of Safety and Emergency Management Evaluations Office of Enforcement and Oversight Office of Health, Safety and Security U.S. Department of Energy i Table of Contents 1.0 Purpose ................................................................................................................................................... 1 2.0 Background ............................................................................................................................................ 1 3.0 Scope ...................................................................................................................................................... 2

253

Structural and Energetic Analysis of MgxM1?x(OH)2 (M = Zn, Cu or Ca) Brucite-Like Compounds by DFT Calculations  

Science Journals Connector (OSTI)

Structural and Energetic Analysis of MgxM1?x(OH)2 (M = Zn, Cu or Ca) Brucite-Like Compounds by DFT Calculations ... Brucite-like mixed hydroxides of the general formula MgxM1?x(OH)2 for M = Zn, Cu or Ca were studied by density functional theory within pseudopotential approximation, plane waves basis set, and periodic boundary conditions. ... Brucite, which is the mineral form of magnesium hydroxide, is a commonly occurring material. ...

Deyse G. Costa; Alexandre B. Rocha; Wladmir F. Souza; Sandra Shirley X. Chiaro; Alexandre A. Leito

2008-06-28T23:59:59.000Z

254

Spectra of low-frequency modulation of gyrotron radiation during electron-cyclotron resonance heating of plasma in the L-2M stellarator  

SciTech Connect

Results from experimental studies of the modulation of the gyrotron power during electron cyclotron resonance heating of plasma L-2M stellarator are presented. It is shown that the modulation spectrum consists of separate spectral bands, among which a 20-kHz peak with a spectral density exceeding by one order of magnitude the spectral density of the other peaks is observed. This can be explained by the gyrotron operation being affected by the wave reflected from long-wavelength plasma fluctuations.

Batanov, G. M.; Kolik, L. V.; Konchekov, E. M.; Malakhov, D. V. [Russian Academy of Sciences, Prokhorov Institute of General Physics (Russian Federation); Novozhilova, Yu. V.; Petelin, M. I. [Russian Academy of Sciences, Institute of Applied Physics (Russian Federation); Petrov, A. E.; Pshenichnikov, A. A.; Sarksyan, K. A.; Skvortsova, N. N.; Kharchev, N. K. [Russian Academy of Sciences, Prokhorov Institute of General Physics (Russian Federation)

2011-05-15T23:59:59.000Z

255

Semiconductor nanocrystal probes for biological applications and process for making and using such probes  

DOE Patents (OSTI)

A semiconductor nanocrystal compound and probe are described. The compound is capable of linking to one or more affinity molecules. The compound comprises (1) one or more semiconductor nanocrystals capable of, in response to exposure to a first energy, providing a second energy, and (2) one or more linking agents, having a first portion linked to the one or more semiconductor nanocrystals and a second portion capable of linking to one or more affinity molecules. One or more semiconductor nanocrystal compounds are linked to one or more affinity molecules to form a semiconductor nanocrystal probe capable of bonding with one or more detectable substances in a material being analyzed, and capable of, in response to exposure to a first energy, providing a second energy. Also described are processes for respectively: making the semiconductor nanocrystal compound; making the semiconductor nanocrystal probe; and treating materials with the probe.

Weiss, Shimon; Bruchez, Marcel; Alivisatos, Paul

2014-01-28T23:59:59.000Z

256

Steady and unsteady calibration of multi-hole probes  

E-Print Network (OSTI)

This thesis presents the development of a data crographics. reduction algorithm for multi-hole pressure probes. The algorithm has been developed for the reduction of calibration data from miniature non-nulling multi-hole probes in compressible...

Johansen, Espen S

1998-01-01T23:59:59.000Z

257

Lens-array PDV Probe Using a Pyramid Prism  

SciTech Connect

A bug eye probe is shown using a pyramid prism, and its advantages and disadvantages are enumerated. Also shown is abug eye imaging probe, with its advantages and disadvantages enumerated.

Malone, R. M., Kaufman, M. I., Cox, B., Romero, V., Cata B., Sorenson, D. Pazuchanics, P.

2011-11-01T23:59:59.000Z

258

New probe at EMSL observes interface kinetics | EMSL  

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

new microfluidic E probe, developed at PNNL and available at EMSL, in position on a ToF-SIMS instrument. A new imaging capability provides direct probing of the solid...

259

In situ chemical probing of the electrode-electrolyte interface...  

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

chemical probing of the electrode-electrolyte interface by ToF-SIMS. In situ chemical probing of the electrode-electrolyte interface by ToF-SIMS. Abstract: A portable vacuum...

260

Investigations of Probe Induced Perturbations in a Hall Thruster  

SciTech Connect

An electrostatic probe used to measure spatial plasma parameters in a Hall thruster generates perturbations of the plasma. These perturbations are examined by varying the probe material, penetration distance, residence time, and the nominal thruster conditions. The study leads us to recommendations for probe design and thruster operating conditions to reduce discharge perturbations, including metal shielding of the probe insulator and operation of the thruster at lower densities.

D. Staack; Y. Raitses; N.J. Fisch

2002-08-12T23:59:59.000Z

Note: This page contains sample records for the topic "activity 2-m probe" 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

Probing Single-Molecule Protein Conformational Dynamics. | EMSL  

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

Single-Molecule Protein Conformational Dynamics. Probing Single-Molecule Protein Conformational Dynamics. Abstract: Protein conformational fluctuations and dynamics, often...

262

The Muon g-2 Experiment The NMR Probe Circuitry  

E-Print Network (OSTI)

The Muon g-2 Experiment The NMR Probe Circuitry Upgrading the Circuit Building the Circuit Future Work Updating NMR Probe Electronics in the Muon g-2 Experiment Audrey Kvam University of Washington September 1, 2014 Audrey Kvam Updating NMR Probe Electronics in the Muon g-2 Experiment #12;The Muon g-2

Washington at Seattle, University of - Department of Physics, Electroweak Interaction Research Group

263

Can a Pump-probe Experiment be Simulated Efficiently?  

E-Print Network (OSTI)

Can a Pump-probe Experiment be Simulated Efficiently? Thesis Submitted for the Degree Doctor things in the world. #12;i ABSTRACT Measuring a quantum system disturbs its evolution. A pump-probe exper measurements. Modeling the evolution of observables in the pump-probe experiment is an essential ingredient

Kosloff, Ronnie

264

Nuclear structure studies with medium energy probes. [Northwestern Univ  

SciTech Connect

Progress in the continuing program of experimental research in nuclear structure with medium-energy probes during the year 1979-1980 is reviewed, and the research activities planned for the year 1980-1981 are discussed. In the study of pion-induced reactions emphasis is placed on investigation of isovector characteristics of nuclear excitations and on double charge exchange reactions. Pion production studies form the major part of the program of experiments with proton beams of 400 to 800 MeV at LAMPF. Current emphasis is on the bearing of these investigations on di-baryon existence. The study of high-spin states and magnetic scattering constitute the main goals of the electron scattering program at Bates. Representative results are presented; completed work is reported in the usual publications. (RWR)

Seth, Kamal K.

1980-01-01T23:59:59.000Z

265

Protein structure and hydration probed by SANS and osmotic stress  

SciTech Connect

Interactions governing protein folding, stability, recognition, and activity are mediated by hydration. Here, we use small-angle neutron scattering coupled with osmotic stress to investigate the hydration of two proteins, lysozyme and guanylate kinase (GK), in the presence of solutes. By taking advantage of the neutron contrast variation that occurs upon addition of these solutes, the number of protein-associated (solute-excluded) water molecules can be estimated from changes in both the zero-angle scattering intensity and the radius of gyration. Poly(ethylene glycol) exclusion varies with molecular weight. This sensitivity can be exploited to probe structural features such as the large internal GK cavity. For GK, small-angle neutron scattering is complemented by isothermal titration calorimetry with osmoticstress to also measure hydration changes accompanying ligand binding. These results provide a framework for studying other biomolecular systems and assemblies using neutron scattering together with osmotic stress.

Rau, Dr. Donald [National Institutes of Health

2008-01-01T23:59:59.000Z

266

Highly controlled fabrication of carbon nanotube based probes for atomic force microscopy  

E-Print Network (OSTI)

phase images taken with the CNC MFM probe. 5.7 References J.silicon substrate using (a) A CNC probe. (b) A commercial Sithe Si MFM probe, and (b) the CNC MFM probe ... . 94

Chen, I-Chen

2007-01-01T23:59:59.000Z

267

Site tests validate benefits of cavern probes  

SciTech Connect

More than 5 years` experience with downhole probes has allowed TransGas Ltd., Regina, to monitor and evaluate cavern integrity. The devices access natural-gas storage caverns` pressures and temperatures. Acquired data have helped determine gas-in-place inventory volumes, confirm spatial volumes, and assess changes in spatial volumes that may have resulted from cavern creep (shrinkage or closure) or downhole abnormality such as fluid infill or collapse of the side walls or roof areas. This conclusion of two articles presents details and results of a specific storage-site. The first article presented background and many of the details and lessons of TransGas` cavern gas-storage probe program.

Crossley, N.G. [TransGas Ltd., Regina, Saskatchewan (Canada)

1997-03-10T23:59:59.000Z

268

Probing the curvature and dark energy  

Science Journals Connector (OSTI)

Two new one-parameter tracking behavior dark energy representations ?=?0/(1+z) and ?=?0ez/(1+z)/(1+z) are used to probe the geometry of the Universe and the property of dark energy. The combined type Ia supernova, Sloan Digital Sky Survey, and Wilkinson Microwave Anisotropy Probe data indicate that the Universe is almost spatially flat and that dark energy contributes about 72% of the matter content of the present universe. The observational data also tell us that ?(0)?-1. It is argued that the current observational data can hardly distinguish different dark energy models to the zeroth order. The transition redshift when the expansion of the Universe changed from deceleration phase to acceleration phase is around zT?0.6 by using our one-parameter dark energy models.

Yungui Gong and Yuan-Zhong Zhang

2005-08-22T23:59:59.000Z

269

Probing the curvature and dark energy  

E-Print Network (OSTI)

Two new one-parameter tracking behavior dark energy representations $\\omega=\\omega_0/(1+z)$ and $\\omega=\\omega_0 e^{z/(1+z)}/(1+z)$ are used to probe the geometry of the Universe and the property of dark energy. The combined type Ia supernova (SN Ia), Sloan Digital Sky Survey (SDSS), and Wilkinson Microwave Anisotropy Probe (WMAP) data indicate that the Universe is almost spatially flat and that dark energy contributes about 72% of the matter content of the present universe. The observational data also tell us that $\\omega(0)\\sim -1$. It is argued that the current observational data can hardly distinguish different dark energy models to the zeroth order. The transition redshift when the expansion of the Universe changed from deceleration phase to acceleration phase is around $z_{\\rm T}\\sim 0.6$ by using our one-parameter dark energy models.

Yungui Gong; Yuan-Zhong Zhang

2005-02-14T23:59:59.000Z

270

Probing Nano-Mechanical QED Effects  

E-Print Network (OSTI)

We propose and study an "intrinsic probing" approach, without introducing any external detector, to mimic cavity QED effects in a qubit-nanomechanical resonator system. This metallic nanomechanical resonator can act as an intrinsic detector when a weak driving current passes through it. The nanomechanical resonator acts as both the cavity and the detector. A cavity QED-like effect is demonstrated by the correlation spectrum of the electromotive force between the two ends of the nanomechanical resonator. Using the quantum regression theorem and perturbation theory, we analytically calculate the correlation spectrum. In the weak driving limit, we study the effect on the vacuum Rabi splitting of both the strength of the driving as well as the frequency-detuning between the charge qubit and the nanomechanical resonator. Numerical calculations confirm the validity of our intrinsic probing approach.

Y. B. Gao; S. Yang; Yu-xi Liu; C. P. Sun; Franco Nori

2009-02-15T23:59:59.000Z

271

Robot to probe inside Antarctic volcano  

Science Journals Connector (OSTI)

Robot to probe inside Antarctic volcano ... The first robotic observations inside the crater of a live volcanousing a unique, eight-legged robot called Danteare slated to start next week in Antarctica. ... A team of U.S. researchers will lower the spiderlike robot into Mount Erebus (pronounced "AIR-a-bus"), a 12,447-foot-high volcano on Ross Island, about 800 miles from the South Pole. ...

RICHARD SELTZER

1992-12-21T23:59:59.000Z

272

Fireside corrosion probes for fossil fuel combustion  

SciTech Connect

Electrochemical corrosion rate probes have been constructed and tested along with mass loss coupons in environments consisting of N2/O2/CO2/SO2 plus water vapor. Temperatures ranged from 450 to 700C. Results show that electrochemical corrosion rates for ash-covered mild steel are a function of time, temperature, and gaseous environment. Correlation between the electrochemical and mass loss corrosion rates was poor.

Covino, B.S., Jr.; Bullard, S.J.; Ziomek-Moroz, M.; Holcomb, G.R.; Eden, D.A. (Intercorr International, Houston, TX)

2006-03-01T23:59:59.000Z

273

Use of a fiber optic probe for organic species determination  

DOE Patents (OSTI)

A fiber optic probe for remotely detecting the presence and concentration organic species in aqueous solutions. The probe includes a cylindrical housing with an organic species indicator, preferably diaminonaphthyl sulfonic acid adsorbed in a silica gel (DANS-modified gel), contained in the probe's distal end. The probe admits aqueous solutions to the probe interior for mixing within the DANS-modified gel. An optical fiber transmits light through the DANS-modified gel while the indicator reacts with organic species present in the solution, thereby shifting the location of the fluorescent peak. The altered light is reflected to a receiving fiber that carries the light to a spectrophotometer or other analysis device.

Ekechukwu, Amy A. (Augusta, GA)

1996-01-01T23:59:59.000Z

274

Probing nuclear matter with jet conversions  

SciTech Connect

We discuss the flavor of leading jet partons as a valuable probe of nuclear matter. We point out that the coupling of jets to nuclear matter naturally leads to an alteration of jet chemistry even at high transverse momentum p{sub T}. In particular, quantum chromodynamics (QCD) jets coupling to a chemically equilibrated quark gluon plasma in nuclear collisions will lead to hadron ratios at high transverse momentum p{sub T} that can differ significantly from their counterparts in p+p collisions. Flavor measurements could complement energy loss as a way to study interactions of hard QCD jets with nuclear matter. Roughly speaking they probe the inverse mean free path 1/{lambda} while energy loss probes the average squared momentum transfer {mu}{sup 2}/{lambda}. We present some estimates for the rate of jet conversions in a consistent Fokker-Planck framework and their impact on future high-p{sub T} identified hadron measurements at RHIC and LHC. We also suggest some novel observables to test flavor effects.

Liu, W. [Cyclotron Institute and Department of Physics, Texas A and M University, College Station, Texas 77843 (United States); Fries, R. J. [Cyclotron Institute and Department of Physics, Texas A and M University, College Station, Texas 77843 (United States); RIKEN/BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973 (United States)

2008-05-15T23:59:59.000Z

275

Phase transitions in heated Sr{sub 2}MgTeO{sub 6} double perovskite oxide probed by X-ray diffraction and Raman spectroscopy  

SciTech Connect

Double-perovskite oxide Sr{sub 2}MgTeO{sub 6} has been synthetized, and its crystal structure was probed by the technique of X-ray diffraction at room temperature. The structure is monoclinic, space group I2/m. Temperature-induced phase transitions in this compound were investigated by Raman spectroscopy up to 550?C. Two low-wavenumber modes corresponding to external lattice vibrations merge at temperature of around 100?C, indicating a phase transition from the monoclinic (I2/m) to the tetragonal (I4/m) structure. At 300?C, changes in the slopes of temperature dependencies of external and OTeO bending modes are detected and interpreted as a second phase transition from the tetragonal (I4/m) to the cubic (Fm-3m) structure.

Manoun, Bouchaib, E-mail: manounb@gmail.com; Tamraoui, Y. [Equipe Ingnierie et environnement, Laboratoire de Chimie Applique et Environnement, Universit Hassan 1er, Settat 26000 (Morocco)] [Equipe Ingnierie et environnement, Laboratoire de Chimie Applique et Environnement, Universit Hassan 1er, Settat 26000 (Morocco); Lazor, P. [Department of Earth Sciences, Uppsala University, SE-752 36 Uppsala (Sweden)] [Department of Earth Sciences, Uppsala University, SE-752 36 Uppsala (Sweden); Yang, Wenge [High Pressure Synergetic Consortium, Geophysical Laboratory, Carnegie Institution of Washington, Argonne, Illinois 60439, USA and Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai 201203 (China)] [High Pressure Synergetic Consortium, Geophysical Laboratory, Carnegie Institution of Washington, Argonne, Illinois 60439, USA and Center for High Pressure Science and Technology Advanced Research (HPSTAR), Shanghai 201203 (China)

2013-12-23T23:59:59.000Z

276

Magnetic field probes for use in radio frequency plasma  

SciTech Connect

An impedance analyzer has been used in the characterization of a magnetic induction probe (B-dot probe) for use in plasma. The role of the impedance analyzer was to determine the frequency response of a B-dot probe up to 100 MHz. The probe was specifically designed to take measurements in rf plasma driven at 13.56 MHz. Probe sensitivity and calibration are considered based on the impedance values obtained when a B-dot probe is swept over a wide frequency range. Effects such as unbalanced loads based on transmission line inductances and termination impedance are shown to be limiting factors on the probes useful frequency range. The use of an impedance analyzer allows these effects to readily be characterized.

Reilly, Michael P.; Miley, George H. [Department of Nuclear, Plasma, and Radiological Engineering, University of Illinois at Urbana-Champaign, 104 S. Wright Street, 216 Talbot Laboratory, MC-234 Urbana, Illinois 61801 (United States); Lewis, William [ERC Inc. Knight High School, 37423 70th Street East, Palmdale, California 93552 (United States)

2009-05-15T23:59:59.000Z

277

Nondegenerate parametric generation of 2.2-mJ, few-cycle 2.05-?m pulses using a mixed phase matching scheme  

SciTech Connect

We describe the production of 2.2-mJ, ?6 optical-cycle-long mid-infrared laser pulses with a carrier wavelength of 2.05 ?m in a two-stage ?-BaB{sub 2}O{sub 4} nondegenerate optical parametric amplifier design with a mixed phase matching scheme, which is pumped by a standard Ti:sapphire chirped-pulse amplification system. It is demonstrated that relatively high pulse energies, short pulse durations, high stability, and excellent beam profiles can be obtained using this simple approach, even without the use of optical parametric chirped-pulse amplification.

Xu, Guibao; Wandel, Scott F.; Jovanovic, Igor, E-mail: ijovanovic@psu.edu [Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)] [Department of Mechanical and Nuclear Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802 (United States)

2014-02-15T23:59:59.000Z

278

High-Throughput Mode Liquid Microjunction Surface Sampling Probe  

SciTech Connect

A simple and automated spot sampling operation mode for a liquid microjunction surface sampling probe/electrospray ionization mass spectrometry (LMJ-SSP/ESI-MS) system is reported. Prior manual and automated spot sampling methods with this probe relied on a careful, relatively slow alignment of the probe and surface distance (<20 m spacing) to form the probe-to-surface liquid microjunction critical to successful surface sampling. Moreover, sampling multiple spots required retraction of the surface from the probe and a repeat of this careful probe-to-surface distance alignment at the next sampling position. With the method described here, the probe was not positioned as close to the surface, the exact probeto-surface positioning was found to be less critical (spanning distances from about 100-300 m), and this distance was not altered during the sampling of an entire array of sample spots. With the probe positioned within the appropriate distance from the surface, the liquid microjunction was formed by letting the liquid from the sampling end of the probe extend out from the probe to the surface. This was accomplished by reducing the selfaspiration liquid flow rate of the probe to a value less than the volume flow rate pumped into the probe. When the self-aspiration rate of the probe was subsequently increased, analytes on the surface that dissolved at the liquid microjunction were aspirated back into the probe with the liquid that created the liquid microjunction and electrosprayed. Presented here are the basics of this new sampling mode, as well as data that illustrate the potential analytical capabilities of the device to conduct highthroughput quantitative analysis.

Van Berkel, Gary J [ORNL; Kertesz, Vilmos [ORNL; King, Richard C. [PharmaCadence

2009-01-01T23:59:59.000Z

279

GTP ARRA Spreadsheet | Open Energy Information  

Open Energy Info (EERE)

GTP ARRA Spreadsheet GTP ARRA Spreadsheet Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Reference Material: GTP ARRA Spreadsheet Details Activities (243) Areas (25) Regions (0) Abstract: Spreadsheet of ARRA projects provided by DOE on 3/24/2011 listing ARRA projects and exploration techniques used for each project. Author(s): Unknown Published: GTP, 2011/01/01 Document Number: Unavailable DOI: Unavailable 2-M Probe At Black Warrior Area (DOE GTP) 2-M Probe At Flint Geothermal Area (DOE GTP) 2-M Probe At Fort Bliss Area (DOE GTP) 2-M Probe At Gabbs Valley Area (DOE GTP) 2-M Probe At Mcgee Mountain Area (DOE GTP) 2-M Probe At Pilgrim Hot Springs Area (DOE GTP) 2-M Probe At Silver Peak Area (DOE GTP) Acoustic Logs At The Needles Area (DOE GTP) Aeromagnetic Survey At Crump's Hot Springs Area (DOE GTP)

280

Energy transfer characteristics of silicate glass doped with Er{sup 3+}, Tm{sup 3+}, and Ho{sup 3+} for ?2 ?m emission  

SciTech Connect

A Er{sup 3+}/Tm{sup 3+}/Ho{sup 3+} tri-doped silicate glass with good thermal stability is prepared by melt-quenching method. Efficient ?2 ?m emission is observed under 808 nm laser excitation. It is found that the 2.0 ?m emission of Ho{sup 3+} can be enhanced under the excitation at 808 nm by incorporating Er{sup 3+} and Tm{sup 3+}. Based on the measurement of absorption spectra, the JuddOfelt intensity parameters, radiation emission probability, and branching ratio are calculated to evaluate the spectroscopic properties simultaneously. The maximum value of emission cross section of Ho{sup 3+} is 3.54 10{sup ?21} cm{sup 2} at 2008 nm. Additionally, the phonon assistance and the micro-parameters in the energy transfer process are quantitatively analyzed by using Dexter model. The energy transfer coefficient from Tm{sup 3+} to Ho{sup 3+} can reach as high as 21.44 10{sup ?40} cm{sup 6}/s, respectively. The emission property together with good thermal property indicates that Er{sup 3+}/Tm{sup 3+}/Ho{sup 3+} tri-doped silicate glass is a potential kind of laser glass for efficient 2 ?m laser.

Li, Ming; Liu, Xueqiang [Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China) [Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China); Graduate School of Chinese Academy of Sciences, Beijing 100039 (China); Guo, Yanyan [College of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022 (China)] [College of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022 (China); Hu, Lili [Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China)] [Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China); Zhang, Junjie [College of Materials Science and Engineering, China Jiliang University, Hangzhou 310 018 (China)] [College of Materials Science and Engineering, China Jiliang University, Hangzhou 310 018 (China)

2013-12-28T23:59:59.000Z

Note: This page contains sample records for the topic "activity 2-m probe" 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

STUDENT ID Page 2 m  

E-Print Network (OSTI)

Write your name, student ID number, recitation instructor's name and recitation time in the space provided above. Also write your name at the top of pages 2, 3,...

282

TANK 241-AN-102 MULTI-PROBE CORROSION MONITORING SYSTEM PROJECT LESSONS LEARNED  

SciTech Connect

During 2007 and 2008, a new Multi-Probe Corrosion Monitoring System (MPCMS) was designed and fabricated for use in double-shell tank 241-AN-102. The system was successfully installed in the tank on May 1, 2008. The 241-AN-102 MPCMS consists of one 'fixed' in-tank probe containing primary and secondary reference electrodes, tank material electrodes, Electrical Resistance (ER) sensors, and stressed and unstressed corrosion coupons. In addition to the fixed probe, the 241-AN-102 MPCMS also contains four standalone coupon racks, or 'removable' probes. Each rack contains stressed and unstressed coupons made of American Society of Testing and Materials A537 CL1 steel, heat-treated to closely match the chemical and mechanical characteristics of the 241-AN-102 tank wall. These coupon racks can be removed periodically to facilitate examination of the attached coupons for corrosion damage. Along the way to successful system deployment and operation, the system design, fabrication, and testing activities presented a number of challenges. This document discusses these challenges and lessons learned, which when applied to future efforts, should improve overall project efficiency.

TAYLOR T; HAGENSEN A; KIRCH NW

2008-07-07T23:59:59.000Z

283

Radar and sonar probing of potash  

E-Print Network (OSTI)

system Determination of the sylvinite and halite acoustic velocities using sonar 50 56 Samples Velocity measurements 56 57 TABLE OF CONTENTS (CONTINUED) CHAPTER Page V PROBING RESEARCH CONDUCTED IN THE IMC K-2 POTASH MINE 62 Geology... sylvinite and halite test samples 26 7 Schematic diagram of the 250 kHz sonar system used to measure the one-way travel time through sylvinite and halite test samples 26 8 Map showing the location of the Foxtrot and Bravo radar stations in the Petromisa...

Lopez Aguilar, Luis Felipe

2012-06-07T23:59:59.000Z

284

Ionization probes of molecular structure and chemistry  

SciTech Connect

Various photoionization processes provide very sensitive probes for the detection and understanding of the spectra of molecules relevant to combustion processes. The detection of ionization can be selective by using resonant multiphoton ionization or by exploiting the fact that different molecules have different sets of ionization potentials. Therefore, the structure and dynamics of individual molecules can be studied even in a mixed sample. The authors are continuing to develop methods for the selective spectroscopic detection of molecules by ionization, and to use these methods for the study of some molecules of combustion interest.

Johnson, P.M. [State Univ. of New York, Stony Brook (United States)

1993-12-01T23:59:59.000Z

285

A shrouded probe aerosol sampling cyclone  

E-Print Network (OSTI)

the air stream. In the present design, three concentric shrouds and a probe will be attached to the entrance of the cyclone. The shroud concept was first used in an aircraft-horne sampling device for collecting tropospheric aerosol particles... by A. R. McFarland and S. A. Batterman. College Station, Texas: 1989. 5. Strauss, W. and S. J. Nainwaring: Air Pollution. London, Baltimore, Maryland: Edward Arnold, 1984. pp. 95-96. 6. Moore, N. E. , and A. R. NcFarland: Stairmand-Type Sampling...

Little, Stewart Craig

2012-06-07T23:59:59.000Z

286

Probing lepton number violation on three frontiers  

SciTech Connect

Neutrinoless double beta decay constitutes the main probe for lepton number violation at low energies, motivated by the expected Majorana nature of the light but massive neutrinos. On the other hand, the theoretical interpretation of the (non-)observation of this process is not straightforward as the Majorana neutrinos can destructively interfere in their contribution and many other New Physics mechanisms can additionally mediate the process. We here highlight the potential of combining neutrinoless double beta decay with searches for Tritium decay, cosmological observations and LHC physics to improve the quantitative insight into the neutrino properties and to unravel potential sources of lepton number violation.

Deppisch, Frank F. [Department of Physics and Astronomy, University College London (United Kingdom)

2013-12-30T23:59:59.000Z

287

Probing the time dependence of dark energy  

SciTech Connect

A new method to investigate a possible time-dependence of the dark energy equation of state w is proposed. We apply this methodology to a combination of data involving one of the most recent type Ia supernova sample (SNLS3) along with the current baryon acoustic oscillation and H(z) measurements. We show that current observations cannot rule out a non-evolving dark energy component (dw/dz = 0). The approach developed here reduces considerably the so-called smearing effect on w determinations and may be useful to probe a possible evolving dark energy component when applied to upcoming observational data.

Barboza Edsio Jr, M. [Departamento de Fsica, Universidade do Estado do Rio Grande do Norte, Rua Professor Antnio Campos s/n, Mossor (Brazil); Alcaniz, J.S., E-mail: edesiobarboza@uern.br, E-mail: alcaniz@on.br [Departamento de Astronomia, Observatrio Nacional, Rua General Jos Cristino 77, Rio de Janeiro (Brazil)

2012-02-01T23:59:59.000Z

288

Probing leptoquark production at IceCube  

Science Journals Connector (OSTI)

We emphasize the inelasticity distribution of events detected at the IceCube neutrino telescope as an important tool for revealing new physics. This is possible because the unique energy resolution at this facility allows to separately assign the energy fractions for emergent muons and taus in neutrino interactions. As a particular example, we explore the possibility of probing second and third generation leptoquark parameter space (coupling and mass). We show that production of leptoquarks with masses ?250??GeV and diagonal generation couplings of O(1) can be directly tested if the cosmic neutrino flux is at the Waxman-Bahcall level.

Luis A. Anchordoqui; Carlos A. Garca Canal; Haim Goldberg; Daniel Gomez Dumm; Francis Halzen

2006-12-29T23:59:59.000Z

289

LANL | Physics | Active Interrogation  

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

Physics Division activities in standoff active-interrogation for detecting Physics Division activities in standoff active-interrogation for detecting terrorist nuclear devices, 2011 Detonation of a terrorist nuclear device in a major city would have severe economic, psychological and cultural consequences. To help prevent the fulfillment of such a threat, Physics Division has been exploring techniques by which highly-enriched uranium could be detected before reaching its intended target. We have focused on the use of high-energy protons and negative-muons because of their ability to probe deeply into structures and shielding that would surround the uranium, and their capability to stimulate radiation signatures indicating 235U. Our experimental studies for standoff active-interrogation are enabled by the 800-MeV proton beam at the Los Alamos Neutron Science Center, which

290

Los Alamos provides HOPE for radiation belt storm probes  

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

HOPE for radiation belt storm probes HOPE for radiation belt storm probes Los Alamos provides HOPE for radiation belt storm probes The HOPE analyzer is one of a suite of instruments that was successfully launched as part of the Radiation Belt Storm Probe mission. August 30, 2012 Artist's rendering showing two spacecraft representing the not-yet-designed Radiation Belt Storm Probes that will study the sun and its effects on Earth. PHOTO CREDIT: Johns Hopkins University Applied Physics Laboratory Artist's rendering showing two spacecraft representing the not-yet-designed Radiation Belt Storm Probes that will study the sun and its effects on Earth. PHOTO CREDIT: Johns Hopkins University Applied Physics Laboratory Contact James E. Rickman Communications Office (505) 665-9203 Email "Today we are boldly going where no spacecraft ever wants to go."

291

Electrical probe diagnostics for the laminar flame quenching distance  

SciTech Connect

A simplified theory, previously developed for the general case of weakly ionized gas flow, is used to predict electrical probe response when the flame is quenched on the probe surface. This theory is based on the planar model of space charge sheaths around the measuring electrode. For the flame quenching case, by assuming that the sheath thickness is comparable with the thermal boundary layer thickness, probe current can be related to flame quenching distance. The theoretical assumptions made to obtain the analytical formulation of probe current were experimentally proved by using direct visualization and high-frequency PIV. The direct visualization method was also used to validate the results of flame quenching distance values obtained with electrical probe. The electrical probe diagnostics have been verified for both head-on and sidewall flame quenching regimes and for stoichiometric methane/air and propane/air mixtures in a pressure range of 0.05-0.6 MPa. (author)

Karrer, Maxime; Makarov, Maxime [Renault Technocentre, 78288 Guyancourt Cedex (France); Bellenoue, Marc; Labuda, Sergei; Sotton, Julien [Laboratoire de Combustion et de Detonique, CNRS, 86961 Futuroscope Chasseneuil (France)

2010-02-15T23:59:59.000Z

292

Electrochemical corrosion rate probes for high temperature energy applications  

SciTech Connect

Electrochemical corrosion rate (ECR) probes were constructed and exposed along with mass loss coupons in a N2/O2/CO2/H2O environment to determine ECR probe operating characteristics. Temperatures ranged from 450 to 800 C and both ECR probes and mass loss coupons were coated with ash. Results are presented in terms of the probe response to temperature, the measured zero baseline, and the quantitative nature of the probes. The effect of Stern-Geary constant and the choice of electrochemical technique used to measure the corrosion rate are also discussed. ECR probe corrosion rates were a function of time, temperature, and process environment and were found to be quantitative for some test conditions. Measured Stern-Geary constants averaged 0.0141 V/decade and the linear polarization technique was found to be more quantitative than the electrochemical noise technique.

Covino, Bernard S., Jr.; Bullard, Sophie J.; Cramer, Stephen D.; Holcomb, Gordon R.; Ziomek-Moroz, M.; Cayard, M.S. (InterCorr International Inc.); Eden, D.A. (InterCorr International Inc.)

2004-01-01T23:59:59.000Z

293

Corrosion probes for fireside monitoring in coal-fired boilers  

SciTech Connect

Electrochemical corrosion rate (ECR) probes were constructed and exposed along with mass loss coupons in a N2/O2/CO2/H2O environment to determine ECR probe operating characteristics. Temperatures ranged from 450 to 600 C and both ECR probes and mass loss coupons were coated with ash. Results are presented in terms of the probe response to temperature, the measured zero baseline, and the quantitative nature of the probes. The effect of Stern-Geary constant and the choice of electrochemical technique used to measure the corrosion rate are also discussed. ECR probe corrosion rates were a function of time, temperature, and process environment and were found to be quantitative for some test conditions. Measured Stern-Geary constants averaged 0.0141 V/decade and the linear polarization technique was found to be more quantitative than the electrochemical noise technique.

Covino, Bernard S., Jr.; Bullard, Sophie J.; Cramer, Stephen D.; Holcomb, Gordon R.; Ziomek-Moroz, Margaret; Eden, David A. (Intercorr International Inc.); Cayard, Michael S. (Intercorr International Inc.)

2004-01-01T23:59:59.000Z

294

Probing color octet electrons at the LHC  

Science Journals Connector (OSTI)

Models with quark and lepton compositeness predict the existence of colored partners of the Standard Model leptons. In this paper we study the LHC phenomenology of a charged colored lepton partner, namely the color octet electron, e8, in an effective theory framework. We explore various mechanisms for resonant production of e8s. With the pair production channel, the 14TeV LHC can probe e8s with masses up to 2.5TeV (2.8TeV) with 100??fb-1 (300??fb-1) of integrated luminosity. A common feature in all the resonant production channels is the presence of two high-pT electrons and at least one high-pT jet in the final state. Using this feature, we implement a search method where the signal is a combination of pair and single production events. This method has potential to increase the LHCs reach significantly. Using the combined signal, we estimate the LHC discovery potential for the e8s. Our analysis shows that the LHC with 14TeV center-of-mass energy and 100??fb-1 (300??fb-1) of integrated luminosity can probe e8s with masses up to 3.4TeV (4TeV) for the compositeness scale of 5TeV.

Tanumoy Mandal and Subhadip Mitra

2013-05-14T23:59:59.000Z

295

RPF101, a new capsaicin-like analogue, disrupts the microtubule network accompanied by arrest in the G2/M phase, inducing apoptosis and mitotic catastrophe in the MCF-7 breast cancer cells  

SciTech Connect

Breast cancer is the world's leading cause of death among women. This situation imposes an urgent development of more selective and less toxic agents. The use of natural molecular fingerprints as sources for new bioactive chemical entities has proven to be a quite promising and efficient method. Capsaicin, which is the primary pungent compound in red peppers, was reported to selectively inhibit the growth of a variety tumor cell lines. Here, we report for the first time a novel synthetic capsaicin-like analogue, RPF101, which presents a high antitumor activity on MCF-7 cell line, inducing arrest of the cell cycle at the G2/M phase through a disruption of the microtubule network. Furthermore, it causes cellular morphologic changes characteristic of apoptosis and a decrease of ??m. Molecular modeling studies corroborated the biological findings and suggested that RPF101, besides being a more reactive molecule towards its target, may also present a better pharmacokinetic profile than capsaicin. All these findings support the fact that RPF101 is a promising anticancer agent. -- Highlights: ? We report for the first time that RPF101 possesses anticancer properties. ? RPF101 induces apoptosis of human breast cancer cells. ? RPF 101 decreases mitochondrial potential and induces DNA fragmentation.

S-Jnior, Paulo Luiz de [Laboratory of Genetics, Butantan Institute, Vital Brasil Avenue 1500, Postal Code: 05503-900, Sao Paulo (Brazil)] [Laboratory of Genetics, Butantan Institute, Vital Brasil Avenue 1500, Postal Code: 05503-900, Sao Paulo (Brazil); Pasqualoto, Kerly Fernanda Mesquita [Biochemistry and Biophysical Laboratory, Butantan Institute, Vital Brasil Avenue 1500, Postal Code: 05503-900, Sao Paulo (Brazil)] [Biochemistry and Biophysical Laboratory, Butantan Institute, Vital Brasil Avenue 1500, Postal Code: 05503-900, Sao Paulo (Brazil); Ferreira, Adilson Kleber [Laboratory of Genetics, Butantan Institute, Vital Brasil Avenue 1500, Postal Code: 05503-900, Sao Paulo (Brazil)] [Laboratory of Genetics, Butantan Institute, Vital Brasil Avenue 1500, Postal Code: 05503-900, Sao Paulo (Brazil); Tavares, Maurcio Temotheo; Damio, Mariana Celestina Frojuello Costa Bernstorff [Department of Pharmacy, School of Pharmaceutical Sciences, University of Sao Paulo, Prof. Lineu Prestes Avenue, 580, Postal Code: 05508-000, Sao Paulo (Brazil); Azevedo, Ricardo Alexandre de [Biochemistry and Biophysical Laboratory, Butantan Institute, Vital Brasil Avenue 1500, Postal Code: 05503-900, Sao Paulo (Brazil)] [Biochemistry and Biophysical Laboratory, Butantan Institute, Vital Brasil Avenue 1500, Postal Code: 05503-900, Sao Paulo (Brazil); Cmara, Diana Aparecida Dias; Pereira, Alexandre; Madeiro de Souza, Dener [Laboratory of Genetics, Butantan Institute, Vital Brasil Avenue 1500, Postal Code: 05503-900, Sao Paulo (Brazil)] [Laboratory of Genetics, Butantan Institute, Vital Brasil Avenue 1500, Postal Code: 05503-900, Sao Paulo (Brazil); Parise Filho, Roberto, E-mail: roberto.parise@usp.br [Department of Pharmacy, School of Pharmaceutical Sciences, University of Sao Paulo, Prof. Lineu Prestes Avenue, 580, Postal Code: 05508-000, Sao Paulo (Brazil)

2013-02-01T23:59:59.000Z

296

TiO2(R)/VO2(M)/TiO2(A) multilayer film as smart window: Combination of energy-saving, antifogging and self-cleaning functions  

Science Journals Connector (OSTI)

Abstract A novel Multifunctional TiO2(R)/VO2(M)/TiO2(A) multilayer film is designed and deposited by medium frequency reactive magnetron sputtering. An exciting fact that the antifogging, self-cleaning and energy-saving effects are integrated into the multilayer film could offer significant potential for wider applications of smart window. Thereinto, the bottom TiO2 layer with rutile phase plays an important role in the formation of monoclinic phase of VO2 layer and serves as an antireflection layer. Then, the VO2 layer with dominant monoclinic phase performs an automatic solar/heat control for saving energy. Finally, the top TiO2 layer containing a mixed phase of anatase and rutile displays the remarkable photocatalytic and photoinduced properties. According to optical tests, the multilayer film shows satisfactory optical properties with an excellent solar regulation efficiency (?Tsol=10.2%) and an applicable luminous transmittance (Tlum-L=30.1%) in a low-temperature state. In addition, the multilayer film implements a photoinduced super-hydrophilicity (~ 2.1) through UV-irradiation, resulting in an antifogging effect. A high level of photocatalytic activity is detected on the surface of the multilayer film through degradation of stearic acid and rhodamine B.

Jianyun Zheng; Shanhu Bao; Ping Jin

2014-01-01T23:59:59.000Z

297

A series of layered intergrowth phases grown by molecular beam epitaxy: Sr{sub m}TiO{sub 2+m}(m=1-5)  

SciTech Connect

Sr{sub m}TiO{sub 2+m} phases having one TiO{sub 2} layer sandwiched between m SrO layers were grown using molecular beam epitaxy. The out-of-plane (in-plane) lattice parameters determined by x-ray diffraction were c(a)=9.14 A (3.78 A), 23.55 A (3.75 A), and 14.60 A (3.75 A) for Sr{sub 3}TiO{sub 5}, Sr{sub 4}TiO{sub 6}, and Sr{sub 5}TiO{sub 7}, respectively. Both lattice parameters change abruptly on going from the m=2 Ruddlesden-Popper phase to m=3 phase, indicating a significant change in the bond lengths (or strain states) on transitioning from the known members to the higher order members of this structural family. Electron microscopy confirmed the artificially layered structures.

Fisher, P.; Wang, S.; Skowronski, M.; Salvador, P. A.; Snyder, M.; Maksimov, O. [Department of Materials Science and Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States); Electro-Optics Center, Pennsylvania State University, Freeport, Pennsylvania 16229 (United States)

2007-12-17T23:59:59.000Z

298

Crystal Structures of the Trifluoromethyl Sulfonates M(SO3CF3)2 (M = Mg, Ca, Ba, Zn, Cu) from Synchrotron X-ray Powder Diffraction Data  

SciTech Connect

The crystal structures of divalent metal salts of trifluoromethyl sulfonic acid ('trifluoromethyl sulfonates') M(SO{sub 3}CF{sub 3}){sub 2} (M = Mg, Ca, Ba, Zn, Cu) were determined from high-resolution X-ray powder diffraction data. Magnesium, calcium and zinc trifluoromethyl sulfonate crystallize in the rhombohedral space group R{bar 3}. Barium trifluoromethyl sulfonate crystallizes in the monoclinic space group I2/a(C2/c) and copper trifluoromethyl sulfonate crystallizes in the triclinic group P{bar 1}. Within the crystal structures the trifluoromethyl sulfonate anions are arranged in double layers with the apolar CF{sub 3} groups pointing towards each other. The cations are located next to the SO{sub 3} groups. The symmetry relations between the different crystal structures have been analyzed.

Dinnebier,R.; Sofina, N.; Hildebrandt, L.; Jansen, M.

2006-01-01T23:59:59.000Z

299

Plasma probe characteristics in low density hydrogen pulsed plasmas  

E-Print Network (OSTI)

Probe theories are only applicable in the regime where the probe's perturbation of the plasma can be neglected. However, it is not always possible to know, a priori, that a particular probe theory can be successfully applied, especially in low density plasmas. This is especially difficult in the case of transient, low density plasmas. Here, we applied probe diagnostics in combination with a 2D particle-in-cell model, to an experiment with a pulsed low density hydrogen plasma. The calculations took into account the full chamber geometry, including the plasma probe as an electrode in the chamber. It was found that the simulations reproduce the time evolution of the probe IV characteristics with good accuracy. The disagreement between the simulated and probe measured plasma density is attributed to the limited applicability of probe theory to measurements of low density pulsed plasmas. Indeed, in the case studied here, probe measurements would lead to a large overestimate of the plasma density. In contrast, the ...

Astakhov, D I; Lee, C J; Ivanov, V V; Krivtsun, V M; Zotovich, A I; Zyryanov, S M; Lopaev, D V; Bijkerk, F

2014-01-01T23:59:59.000Z

300

Probing the Degradation Mechanisms in Electrolyte Solutions for...  

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

Degradation Mechanisms in Electrolyte Solutions for Li-ion Batteries by In-Situ Transmission Electron Microscopy. Probing the Degradation Mechanisms in Electrolyte Solutions for...

Note: This page contains sample records for the topic "activity 2-m probe" 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

Probing Emissions of Military Cargo Aircraft: Description of...  

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

Emissions of Military Cargo Aircraft: Description of a Joint Field Measurement Strategic Environmental Research and Probing Emissions of Military Cargo Aircraft: Description of a...

302

Test probe for surface mounted leadless chip carrier  

DOE Patents (OSTI)

A test probe for a surface mounted leadless chip carrier is disclosed. The probe includes specially designed connector pins which allow size reductions in the probe. A thermoplastic housing provides spring action to ensure good mechanical and electrical contact between the pins and the contact strips of a leadless chip carrier. Other features include flexible wires molded into the housing and two different types of pins alternately placed in the housing. These features allow fabrication of a smaller and simpler test probe. 1 fig.

Meyer, K.L.; Topolewski, J.

1987-10-02T23:59:59.000Z

303

Probing the Mobility of Supercooled Liquid 3-Methylpentane at...  

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

Mobility of Supercooled Liquid 3-Methylpentane at Temperatures Near the Glass Transition Using Rare Gas Permeation. Probing the Mobility of Supercooled Liquid 3-Methylpentane at...

304

Probing Molecular Associations of Field-Collected and Laboratory...  

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

Molecular Associations of Field-Collected and Laboratory-Generated SOA with Nano-DESI High-Resolution Mass Spectrometry. Probing Molecular Associations of Field-Collected and...

305

Photoelectron Spectroscopy and Theoretical Study of M(IO3)2 (M = H, Li, Na, K): Structural Evolution, Optical Isomers and Hyperhalogen Behavior  

SciTech Connect

H(IO3)2- and M(IO3)2- (M = Li, Na, K) anions were successfully produced via electrospray ionization of their corresponding bulk salt solutions, and were characterized by combining negative ion photoelectron spectroscopy and quantum chemical calculations. The photoelectron spectra reveal that all these M(IO3)2- species possess very high vertical detachment energies (VDEs), to be 6.25, 6.57, 6.60 and 6.51 eV for H(IO3)2-, Li(IO3)2-, Na(IO3)2- and K(IO3)2-, respectively, which are much higher than that of IO3- (4.77 eV). The theoretical calculations show that each of these anions has two energetically degenerated optical isomers. It is found that the structure of H(IO3)2- can be written as IO3-(HIO3), in which the H atom is tightly bound to one of the IO3- groups and forms an iodic acid (HIO3) molecule; while the structures of M(IO3)2- can be written as (IO3-)M+(IO3-), in which the alkali metal atoms interact with the two IO3- groups almost equally and bridge the two IO3- groups via two O atoms of each IO3- with the two MOOI planes nearly perpendicular to each other. In addition, the high VDEs of M(IO3)2- (M = Li, Na, K) can be explained by the hyperhalogen behavior of their neutral counterparts.

Hou, Gao-Lei; Wu, Miao Miao; Wen, Hui; Sun, Qiang N.; Wang, Xue B.; Zheng, Weijun

2013-07-31T23:59:59.000Z

306

Direct Probing of Charge Injection and Polarization-Controlled Ionic Mobility on Ferroelectric LiNbO3 Surfaces  

SciTech Connect

Mapping surface potential with time-resolved Kelvin Probe Force Microscopy (tr-KPFM) in LiNbO3 periodically-poled single crystal revealed activation of the surface ionic subsystem. Electric fields higher than certain threshold value but lower than the switching field induce injection of charge from the biased electrode, formation of an active region in its vicinity and uneven distribution of screening charge on the opposite ferroelectric domains. Tr-KPFM technique allows investigating these phenomena in details.

Strelcov, Evgheni [ORNL] [ORNL; Ievlev, Dr. Anton [Ural State University, Russia] [Ural State University, Russia; Jesse, Stephen [ORNL] [ORNL; Kravchenko, Ivan I [ORNL] [ORNL; Shur, V.Y. [Institute of Physics and Applied Mathematics, Ural State University] [Institute of Physics and Applied Mathematics, Ural State University; Kalinin, Sergei V [ORNL] [ORNL

2014-01-01T23:59:59.000Z

307

High Temperature, Large Sample Volume, Constant Flow Magic Angle Spinning NMR Probe for a 11  

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

High Temperature, Large Sample Volume, Constant Flow Magic Angle Spinning NMR Probe for a High Temperature, Large Sample Volume, Constant Flow Magic Angle Spinning NMR Probe for a 11.7 T Magnetic Field for In Situ Catalytic Reaction Characterization Project start date: April 1, 2007 EMSL Lead Investigator: Joseph Ford, EMSL High Field Magnetic Resonance Facility Co-investigators: Jian Zhi Hu, Macromolecular Structure and Dynamics, Biological Science Division, FCSD Jesse Sears and David W. Hoyt, EMSL High Field Magnetic Resonance Facility Detailed understanding of the mechanisms involved in a catalytic reaction requires identification of the nature of the active sites and the temporal evolution of reaction intermediates. Although optical methods such as UV-visible and infrared (IR) spectroscopies can be used for some types of reactions, these do not

308

Modeling Scattering Polarization for Probing Solar Magnetism  

E-Print Network (OSTI)

This paper considers the problem of modeling the light polarization that emerges from an astrophysical plasma composed of atoms whose excitation state is significantly influenced by the anisotropy of the incident radiation field. In particular, it highlights how radiative transfer simulations in three-dimensional models of the quiet solar atmosphere may help us to probe its thermal and magnetic structure, from the near equilibrium photosphere to the highly non-equilibrium upper chromosphere. The paper finishes with predictions concerning the amplitudes and magnetic sensitivities of the linear polarization signals produced by scattering processes in two transition region lines, which should encourage us to develop UV polarimeters for sounding rockets and space telescopes with the aim of opening up a new diagnostic window in astrophysics.

Bueno, Javier Trujillo

2011-01-01T23:59:59.000Z

309

Chemical sensor with oscillating cantilevered probe  

DOE Patents (OSTI)

The invention provides a method of detecting a chemical species with an oscillating cantilevered probe. A cantilevered beam is driven into oscillation with a drive mechanism coupled to the cantilevered beam. A free end of the oscillating cantilevered beam is tapped against a mechanical stop coupled to a base end of the cantilevered beam. An amplitude of the oscillating cantilevered beam is measured with a sense mechanism coupled to the cantilevered beam. A treated portion of the cantilevered beam is exposed to the chemical species, wherein the cantilevered beam bends when exposed to the chemical species. A second amplitude of the oscillating cantilevered beam is measured, and the chemical species is determined based on the measured amplitudes.

Adams, Jesse D

2013-02-05T23:59:59.000Z

310

Probing Quintessence Potential with Future Cosmological Surveys  

E-Print Network (OSTI)

Quintessence, a scalar field model, has been proposed to account for the acceleration of the Universe at present. We discuss how accurately quintessence models are discriminated by future cosmological surveys, which include experiments of CMB, galaxy clustering, weak lensing, and the type Ia SNe surveys, by making use of the conventional parameterized dark energy models. We can see clear differences between the thawing and the freezing quintessence models at more than $1\\sigma$ ($2\\sigma$) confidence level as long as the present equation of state for quintessence is away from $-1$ as $w_X \\gtrsim -0.95 (-0.90)$. However, it is found to be difficult to probe the effective mass squared for the potential in thawing models, whose signs are different between the quadratic and the cosine-type potentials. This fact may require us to invent a new estimator to distinguish quintessence models beyond the thawing and the freezing ones.

Takeuchi, Yoshitaka; Takahashi, Tomo; Yamaguchi, Masahide

2014-01-01T23:59:59.000Z

311

Probing Quintessence Potential with Future Cosmological Surveys  

E-Print Network (OSTI)

Quintessence, a scalar field model, has been proposed to account for the acceleration of the Universe at present. We discuss how accurately quintessence models are discriminated by future cosmological surveys, which include experiments of CMB, galaxy clustering, weak lensing, and the type Ia SNe surveys, by making use of the conventional parameterized dark energy models. We can see clear differences between the thawing and the freezing quintessence models at more than $1\\sigma$ ($2\\sigma$) confidence level as long as the present equation of state for quintessence is away from $-1$ as $w_X \\gtrsim -0.95 (-0.90)$. However, it is found to be difficult to probe the effective mass squared for the potential in thawing models, whose signs are different between the quadratic and the cosine-type potentials. This fact may require us to invent a new estimator to distinguish quintessence models beyond the thawing and the freezing ones.

Yoshitaka Takeuchi; Kiyotomo Ichiki; Tomo Takahashi; Masahide Yamaguchi

2014-01-27T23:59:59.000Z

312

Probing light stop pairs at the LHC  

Science Journals Connector (OSTI)

In this work, we study the light stop pair signals at the LHC. We explore the supersymmetry parameter space with nonuniversal gaugino and third-generation masses at the grand unified theory scale. Recent LHC supersymmetry search results based on 35??pb-1 and 1??fb-1 of data are implemented to put the limits on stop pair events. The dark matter relic density and direct detection constraints are also taken into account. Detailed simulations on the signals and background for some benchmark points are performed, and it is found that the stop pair signals usually escape the LHC search if the present cut conditions are used. We also explore the potential and sensitivity of ILC to probe such scenarios. It is found that the ILC can detect them with an integrated luminosity of a few tens of fb-1.

Xiao-Jun Bi; Qi-Shu Yan; Peng-Fei Yin

2012-02-07T23:59:59.000Z

313

Medium probes: exploring the medium not the message  

Science Journals Connector (OSTI)

Frequently in information design, we lean toward selecting a platform based upon our knowledge, values, and interests, independent of our audience's practices with information. We found ourselves facing this issue when seeking a technology platform to ... Keywords: cultural probes, reflective hci, technology probes

Betsy DiSalvo, Parisa Khanipour Roshan

2014-06-01T23:59:59.000Z

314

Towards Optimization of Probe Placement for Radio-Frequency Ablation  

E-Print Network (OSTI)

's electric potential and of the steady state of the heat distribution during RF ablation. The optimization with mono- or bipolar systems: A probe, connected to an electric generator, is placed inside the malignant tissue, such that an electric current flows through the body and heats the tissue near the probe up

Preusser, Tobias

315

Nanoparticle delivery Nanofountain-Probe-Based High-Resolution Patterning  

E-Print Network (OSTI)

Nanoparticle delivery Nanofountain-Probe-Based High-Resolution Patterning and Single-Cell Injection these nanoparticles will require unrealized spatial control. Furthermore, single-cell in vitro transfection methods of functionalized diamond nanoparticles are demonstrated using a broadly applicable nanofountain probe, a tool

Espinosa, Horacio D.

316

Van Allen probes pinpoint driver of speeding electrons  

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

Van Allen probes pinpoint driver of speeding electrons Van Allen probes pinpoint driver of speeding electrons Van Allen probes pinpoint driver of speeding electrons Los Alamos researchers believe they have solved a lingering mystery about how electrons within Earth's radiation belt can suddenly become energetic enough to kill orbiting satellites. July 25, 2013 Artist's rendering of mechanism within Van Allen radiation belts An artist's rendering of a mechanism within the Van Allen radiation belts that can accelerate electrons to satellite-killing energies. The mechanism was discovered by a group of scientists using data from NASA's Van Allen Probes (formerly known as the Radiation Belt Storm Probes). Researchers, led by Los Alamos National laboratory space physicist Geoffrey Reeves, believe that electromagnetic waves within the Van Allen belts themselves

317

Femtosecond PumpPushProbe and PumpDumpProbe Spectroscopy of Conjugated Polymers: New Insight and Opportunities  

Science Journals Connector (OSTI)

Femtosecond PumpPushProbe and PumpDumpProbe Spectroscopy of Conjugated Polymers: New Insight and Opportunities ... In 2014, Tapping and Kee reported charge carrier generation by optical pumping of poly(3-hexylthiophene) (P3HT) singlet excitons. ... PBDTTPD is sol. in CHCl3, and in o-dichlorobenzene upon heating, and shows a broad absorption in the visible region. ...

Tak W. Kee

2014-09-03T23:59:59.000Z

318

Science Programs for a 2 m-class Telescope at Dome C, Antarctica: PILOT, the Pathfinder for an International Large Optical Telescope  

E-Print Network (OSTI)

The cold, dry and stable air above the summits of the Antarctic plateau provides the best ground-based observing conditions from optical to sub-mm wavelengths to be found on the Earth. PILOT is a proposed 2 m telescope, to be built at Dome C in Antarctica, able to exploit these conditions for conducting astronomy at optical and infrared wavelengths. While PILOT is intended as a pathfinder towards the construction of future grand-design facilities, it will also be able to undertake a range of fundamental science investigations in its own right. This paper provides the performance specifications for PILOT, including its instrumentation. It then describes the kinds of science projects that it could best conduct. These range from planetary science to the search for other solar systems, from star formation within the Galaxy to the star formation history of the Universe, and from gravitational lensing caused by exo-planets to that produced by the cosmic web of dark matter. PILOT would be particularly powerful for wide-field imaging at infrared wavelengths, achieving near-diffraction limited performance with simple tip-tilt wavefront correction. PILOT would also be capable of near-diffraction limited performance in the optical wavebands, as well be able to open new wavebands for regular ground based observation; in the mid-IR from 17 to 40 microns and in the sub-mm at 200 microns.

M. G. Burton; J. Lawrence; M. C. B. Ashley; J. A. Bailey; C. Blake; T. R. Bedding; J. Bland-Hawthorn; I. A. Bond; K. Glazebrook; M. G. Hidas; G. Lewis; S. N. Longmore; S. T. Maddison; S. Mattila; V. Minier; S. D. Ryder; R. Sharp; C. H. Smith; J. W. V. Storey; C. G. Tinney; P. Tuthill; A. J. Walsh; W. Walsh; M. Whiting; T. Wong; D. Woods; P. C. M. Yock

2005-04-29T23:59:59.000Z

319

Experimental and theoretical studies on the C15 intermetallic compounds MV{sub 2} (M = Zr, Hf and Ta): Elasticity and phase stability  

SciTech Connect

The phase stability of C15 HfV{sub 2} was studied by specific heat measurements. The elastic constants of C15 HfV{sub 2} were measured by the resonant ultrasound spectroscopy. Total energy and electronic structure of C15 intermetallic compounds MV{sub 2} (M = Zr, Hf and Ta) were calculated using the linear muffin tin orbital (LMTO) method. The band structures at X-point near the Fermi level were used to understand the anomalous shear moduli of the C15 HfV{sub 2} and ZrV{sub 2}. It was found that the double degeneracy with a linear dispersion relation of electronic levels at the x-point near the Fermi surface is mainly responsible for the C15 anomalous elasticity at high temperatures. The densities of states at Fermi level and the geometry of the Fermi surface were used to explain the low temperature phase instability of C15 HfV{sub 2} and ZrV{sub 2} and the stability of C15 TaV{sub 2}. The relationship between the anomalous elasticity and structural instability of C15 HfV{sub 2} and ZrV{sub 2} were also studied.

Chu, F.; Mitchell, T.E.; Chen, S.P. [Los Alamos National Lab., NM (United States); Sob, M.; Siegl, R.; Pope, D.P. [Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. of Materials Science and Engineering

1994-12-01T23:59:59.000Z

320

Optimization of a rapid nonisotopic DNA probe assay for Plasmodium falciparum in the Gambia.  

Science Journals Connector (OSTI)

...Urbana 61801. An enzyme-linked synthetic DNA probe which hybridizes to repetitive...Gambia. | An enzyme-linked synthetic DNA probe which hybridizes to repetitive...April 1991 An enzyme-linked synthetic DNA probe which hybridizes to repetitive...

G L McLaughlin; C Decrind; R Dayal-Drager; M Hassan-King; S Subramanian; B M Greenwood

1991-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "activity 2-m probe" 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

Synthetic DNA probes for detection of enterotoxigenic Clostridium perfringens strains isolated from outbreaks of food poisoning.  

Science Journals Connector (OSTI)

...research-article Research Article Synthetic DNA probes for detection of enterotoxigenic...potential to produce enterotoxin. Synthetic DNA probes for detection of enterotoxigenic...American Society for Microbiology Synthetic DNA Probes for Detection of Enterotoxigenic...

M Van Damme-Jongsten; J Rodhouse; R J Gilbert; S Notermans

1990-01-01T23:59:59.000Z

322

E-Print Network 3.0 - amplitude modulated probes Sample Search...  

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

UNDER CONTRACT DE-AC02-76CH03073 Summary: of the probe signal. The suppression of the high-frequency modulation of the probe signal by limiting... by the first probe (at the...

323

Organelle-Specific Activity-Based Protein Profiling in Living Cells  

SciTech Connect

A multimodal acidic organelle targeting activity-based probe was developed for analysis of subcellular native enzymatic activity of cells by fluorescent microscopy and mass spectrometry. A cathepsin reactive warhead was conjugated to an acidotropic amine, and a clickable alkyne for appendage of AlexaFluor 488 or biotin reporter tags. This probe accumulated in punctate vesicles surrounded by LAMP1, a lysosome marker, as observed by Structured Illumination Microscopy (SIM) in J774 mouse macrophage cells. Biotin conjugation, affinity purification, and analysis of in vivo labeled J774 by mass spectrometry showed that the probe was very selective for Cathepsins B and Z, two lysosomal cysteine proteases. Analysis of starvation induced autophagy, which is an increase in cell component catabolism involving lysosomes, showed a large increase in tagged protein number and an increase in cathepsin activity. Organelle targeting activity-based probes and subsequent analysis of resident proteins by mass spectrometry is enabled by tuning the physicochemical properties of the probe.

Wiedner, Susan D.; Anderson, Lindsey N.; Sadler, Natalie C.; Chrisler, William B.; Kodali, Vamsi K.; Smith, Richard D.; Wright, Aaron T.

2014-02-06T23:59:59.000Z

324

Dynamic Motion of Helix A in the Amino-terminal Domain of Calmodulin is Stabilized Upon Calcium Activation  

SciTech Connect

Calcium-dependent changes in the internal dynamics and average structures of the opposing globular domains of calmodulin (CaM), as well as their relative spatial arrangement, contribute to the productive association between CaM and a range of different target proteins to affect their functional activation. To identify dynamic structural changes involving individual ?-helical elements and their modulation by calcium activation, we have used site-directed mutagenesis to engineer a tetracysteine binding motif within helix A near the amino-terminus of calmodulin (CaM), permitting the selective and rigid attachment of the fluorescent probe 4?,5?-bis(1,3,2-dithioarsolan-2-yl) fluorescein (FlAsH) with full retention of function. The rigid tetracoordinate linkage of FlAsH to CaM, in conjunction with frequency-domain fluorescence anisotropy measurements, allows assessment of dynamic changes associated with calcium activation without interference from independent probe motion. Taking advantage of the large fluorescent enhancement associated with FlAsH binding to CaM, rates of FlAsH binding to apo- and calcium-activated CaM were 2500 ? 10 M-1 sec-1 and 187 ? 2 M-1 sec-1, respectively. There is no difference in the solvent accessibility of the bound FlAsH irrespective of calcium binding to CaM. Thus, given that FlAsH selectively labels disordered structures, the large difference in rates of FlAsH binding indicates that calcium binding stabilizes helix A. Frequency-domain anisotropy measurements of bound FlAsH indicate that prior to calcium activation, helix A undergoes large amplitude nanosecond motions. Following calcium activation, helix A becomes immobile, and structurally coupled to the overall rotation of CaM. We discuss these results in the context of a model that suggests stabilization of helix A relative to other domain elements in the CaM structure is critical to defining high-affinity binding clefts, and in promoting specific and ordered biding of the opposing lobes of CaM to target proteins.

Chen, Baowei; Mayer, M ULJANA.; Markillie, Lye MENG.; Stenoien, David L.; Squier, Thomas C.

2005-01-01T23:59:59.000Z

325

Dynamic Motion of Helix A in the Amino-terminal Domain of Calmodulin is Stabilized Upon Calcium Activation  

SciTech Connect

Calcium-dependent changes in the internal dynamics and average structures of the opposing globular domains of calmodulin (CaM), as well as their relative spatial arrangement, contribute to the productive association between CaM and a range of different target proteins to affect their functional activation. To identify dynamic structural changes involving individual ?-helical elements and their modulation by calcium activation, we have used site-directed mutagenesis to engineer a tetracysteine binding motif within helix A near the amino-terminus of calmodulin (CaM), permitting the selective and rigid attachment of the fluorescent probe 4?,5?-bis(1,3,2-dithioarsolan-2-yl) fluorescein (FlAsH) with full retention of function. The rigid tetracoordinate linkage of FlAsH to CaM, in conjunction with frequency-domain fluorescence anisotropy measurements, allows assessment of dynamic changes associated with calcium activation without interference from independent probe motion. Taking advantage of the large fluorescent enhancement associated with FlAsH binding to CaM, rates of FlAsH binding to apo- and calcium-activated CaM were 2500 ? 10 M-1 sec-1 and 187 ? 2 M-1 sec-1, respectively. There is no difference in the solvent accessibility of the bound FlAsH irrespective of calcium binding to CaM. Thus, given that FlAsH selectively labels disordered structures, the large difference in rates of FlAsH binding indicates that calcium binding stabilizes helix A. Frequency-domain anisotropy measurements of bound FlAsH indicate that prior to calcium activation, helix A undergoes large amplitude nanosecond motions. Following calcium activation, helix A becomes immobile, and structurally coupled to the overall rotation of CaM. We discuss these results in the context of a model that suggests stabilization of helix A relative to other domain elements in the CaM structure is critical to defining high-affinity binding clefts, and in promoting specific and ordered biding of the opposing lobes of CaM to target proteins.

Chen, Baowei; Mayer, M ULJANA.; Markillie, Lye MENG.; Stenoien, David L.; Squier, Thomas C.

2005-02-01T23:59:59.000Z

326

E-Print Network 3.0 - anisotropy probe 5-yr Sample Search Results  

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

SAMPLING Summary: probe, including permeability, porosity, anisotropy, presence of a shale boundary, rate of mud... and probe pressures to estimate formation permeability,...

327

E-Print Network 3.0 - anisotropy probe five-year Sample Search...  

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

SAMPLING Summary: probe, including permeability, porosity, anisotropy, presence of a shale boundary, rate of mud... and probe pressures to estimate formation permeability,...

328

E-Print Network 3.0 - anisotropy probe wmapobservations Sample...  

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

SAMPLING Summary: probe, including permeability, porosity, anisotropy, presence of a shale boundary, rate of mud... and probe pressures to estimate formation permeability,...

329

Synthesis of a Targeted Biarsenical Cy3-Cy5 Affinity Probe for...  

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

Targeted Biarsenical Cy3-Cy5 Affinity Probe for Superresolution Fluorescence Imaging. Synthesis of a Targeted Biarsenical Cy3-Cy5 Affinity Probe for Superresolution Fluorescence...

330

A Red Cy3-Based Biarsenical Fluorescent Probe Targeted to a Complement...  

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

Red Cy3-Based Biarsenical Fluorescent Probe Targeted to a Complementary Binding Peptide. A Red Cy3-Based Biarsenical Fluorescent Probe Targeted to a Complementary Binding Peptide....

331

E-Print Network 3.0 - atom-probe field ion Sample Search Results  

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

au Journalde Physique 111,Volume 3, novembre 1993 Atom-probe... to the ductility properties of these alloys. This paper present an atom probe determination of oxygen...

332

Probing Dark Energy with Constellation-X  

E-Print Network (OSTI)

Constellation-X (Con-X) will carry out two powerful and independent sets of tests of dark energy based on X-ray observations of galaxy clusters, providing comparable accuracy to other leading dark energy probes. The first group of tests will measure the absolute distances to clusters, primarily using measurements of the X-ray gas mass fraction in the largest, dynamically relaxed clusters, but with additional constraining power provided by follow-up observations of the Sunyaev-Zel'dovich (SZ) effect. As with supernovae studies, such data determine the transformation between redshift and true distance, d(z), allowing cosmic acceleration to be measured directly. The second, independent group of tests will use the exquisite spectroscopic capabilities of Con-X to determine scaling relations between X-ray observables and mass. Together with forthcoming X-ray and SZ cluster surveys, these data will help to constrain the growth of structure, which is also a strong function of cosmological parameters.

Rapetti, D; Rapetti, David; Allen, Steven W.

2006-01-01T23:59:59.000Z

333

Probing Dark Energy with Constellation-X  

SciTech Connect

Constellation-X (Con-X) will carry out two powerful and independent sets of tests of dark energy based on X-ray observations of galaxy clusters, providing comparable accuracy to other leading dark energy probes. The first group of tests will measure the absolute distances to clusters, primarily using measurements of the X-ray gas mass fraction in the largest, dynamically relaxed clusters, but with additional constraining power provided by follow-up observations of the Sunyaev-Zel'dovich (SZ) effect. As with supernovae studies, such data determine the transformation between redshift and true distance, d(z), allowing cosmic acceleration to be measured directly. The second, independent group of tests will use the exquisite spectroscopic capabilities of Con-X to determine scaling relations between X-ray observables and mass. Together with forthcoming X-ray and SZ cluster surveys, these data will help to constrain the growth of structure, which is also a strong function of cosmological parameters.

Rapetti, David; Allen, Steven W.; /KIPAC, Menlo Park

2006-09-08T23:59:59.000Z

334

Probing resonant leptogenesis at the LHC  

Science Journals Connector (OSTI)

We explore direct collider probes of the resonant leptogenesis mechanism for the origin of matter. We work in the context of theories where the standard model (SM) is extended to include an additional gauged U(1) symmetry broken at the TeV scale, and where the light neutrinos obtain mass through a type I seesaw at this scale. The CP asymmetry that generates the observed matter-antimatter asymmetry manifests itself in a difference between the number of positive and negative like-sign dileptons N(?+?+)-N(?-?-) that arise in the decay of the new Z? gauge boson to two right-handed neutrinos N, and their subsequent decay to leptons. The relatively low efficiency of resonant leptogenesis in this class of models implies that the CP asymmetry, ?, is required to be sizable, i.e., of order one. In particular, from the sign of the baryon asymmetry of the Universe, an excess of antileptons is predicted. We identify the domains in MZ?-MN space where such a direct test is possible and find that with 300??fb-1 of data and no excess found, the LHC can set the 2? exclusion limit ??0.22.

Steve Blanchet; Z. Chacko; Solomon S. Granor; Rabindra N. Mohapatra

2010-10-25T23:59:59.000Z

335

Capacitance Probe for Detection of Anomalies in Nonmetallic Plastic Pipe  

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

Capacitance Probe for Detection of Anomalies in Capacitance Probe for Detection of Anomalies in Nonmetallic Plastic Pipe Opportunity The Department of Energy's National Energy Technology Laboratory (NETL) is seeking collaborative research and licensing partners interested in implementing United States Patent Number 7,839,282 entitled "Capacitance Probe for Detection of Anomalies in Nonmetallic Plastic Pipe." Disclosed in this patent is an analysis of materials using a capacitive sensor to detect anomalies in nonmetallic plastic pipe through comparison of measured capacitances. The capacitive sensor is used in conjunction with a capacitance measurement device, a location device, and a processor to generate a capacitance versus location output for the detection and localization of anomalies

336

Development of Micromachined Probes for Bio-Nano Applications  

E-Print Network (OSTI)

nitride and a thin gold coating. The tip profile and radius of curvature is tightly controlled in the probe fabrication to ensure a predictable tip-substrate contact. By scanning a fabricated probe on a single crystal silicon surface in ambient... of the magnetic core on the chip and placement of the top conductors with wire bonding. 1) To fabricate the probe substrate with bottom conductors, a layer of chromium (10 nm thick) and gold (300 nm thick) is deposited onto a nitride coated silicon wafer...

Yapici, Murat K.

2010-01-14T23:59:59.000Z

337

Student Activities Student Activities  

E-Print Network (OSTI)

with Solar Energy? Activity B How do Atmospheres Produce their Effect Upon Surface Temperatures? Activity C and populations found in developing countries in Asia, Africa and Latin America. Figure 4.3 illustrates the actual

338

Combined Atomic Force Microscope-Based Topographical Imaging and Nanometer Scale Resolved Proximal Probe Thermal Desorption/Electrospray Ionization-Mass Spectrometry  

SciTech Connect

Nanometer scale proximal probe thermal desorption/electrospray ionization mass spectrometry (TD/ESI-MS) was demonstrated for molecular surface sampling of caffeine from a thin film using a 30 nm diameter nano-thermal analysis (nano-TA) probe tip in an atomic force microscope (AFM) coupled via a vapor transfer line and ESI interface to a MS detection platform. Using a probe temperature of 350 C and a spot sampling time of 30 s, conical desorption craters 250 nm in diameter and 100 nm deep were created as shown through subsequent topographical imaging of the surface within the same system. Automated sampling of a 5 x 2 array of spots, with 2 m spacing between spots, and real time selective detection of the desorbed caffeine using tandem mass spectrometry was also demonstrated. Estimated from the crater volume (~2x106 nm3), only about 10 amol (2 fg) of caffeine was liberated from each thermal desorption crater in the thin film. These results illustrate a relatively simple experimental setup and means to acquire in automated fashion sub-micrometer scale spatial sampling resolution and mass spectral detection of materials amenable to TD. The ability to achieve MS-based chemical imaging with 250 nm scale spatial resolution with this system is anticipated.

Ovchinnikova, Olga S [ORNL; Nikiforov, Maxim [ORNL; Bradshaw, James A [ORNL; Jesse, Stephen [ORNL; Van Berkel, Gary J [ORNL

2011-01-01T23:59:59.000Z

339

Cell-Trappable Fluorescent Probes for Nitric Oxide Visualization in Living Cells  

Science Journals Connector (OSTI)

(2) More recently, NO has been implicated to modulate synaptic activity in the CNS, where it may play a role in signal transduction in the olfactory bulb. ... Using the copper stoichiometry determined by titration, exposure of solutions of the probes generated in situ to excess NO under anaerobic conditions led to an immediate fluorescence enhancement with a concomitant bathochromic shift of the emission maxima (Figure 2 and Table 1). ... To test this presumption, fluorescent protein chimeras were expressed in RAW 264.7 macrophages, and time-lapse ratiometric fluorescence microscopy was used to measure the maturation dynamics of individual phagosomes contg. ...

Michael D. Pluth; Lindsey E. McQuade; Stephen J. Lippard

2010-04-20T23:59:59.000Z

340

Scanning probe microscopy with inherent disturbance suppression using micromechanical systems  

E-Print Network (OSTI)

All scanning probe microscopes (SPMs) are affected by disturbances, or mechanical noise, in their environments which can limit their imaging resolution. This thesis introduces a general approach for suppressing out-of-plane ...

Sparks, Andrew William, 1977-

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "activity 2-m probe" 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

Current mission design of the solar probe mission  

Science Journals Connector (OSTI)

Solar Probe mission is now a part of the NASA EarthSun connection theme under the Living With a Star program. A concept study was completed recently, and the latest conceptual mission design for the Solar Probe mission is presented in this paper. Present trajectory design provides a mission scenario that offers repeated pole-to-pole near Sun flybys at perihelion of 4 solar radii with favorable quadrature geometry that permits continuous real-time data transmission during all solar passes. Solar Probe is to be delivered to the solar polar orbit through a direct Jupiter gravity assist trajectory that has launch opportunities every 13 months. The first solar flyby occurs 3.1 years after launch, and the subsequent solar flybys come every 4 years periodically, providing 3 unique opportunities to probe the Sun in one solar cycle.

Yanping Guo; Robert W Farquhar

2004-01-01T23:59:59.000Z

342

Application of FRET probes in the analysis of neuronal plasticity  

E-Print Network (OSTI)

Breakthroughs in imaging techniques and optical probes in recent years have revolutionized the field of life sciences in ways that traditional methods could never match. The spatial and temporal regulation of molecular ...

Ueda, Yoshibumi

343

Phonon Transport and Thermodynamics Probed with Neutron Scattering...  

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

Phonon Transport and Thermodynamics Probed with Neutron Scattering Oct 22 2014 10:00 AM - 11:00 AM Olivier Delaire, Scattering and Thermophysics Group, MSTD, ORNL, Oak Ridge...

344

Isotope and Temperature Effects in Liquid Water Probed by Soft...  

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

Isotope and Temperature Effects in Liquid Water Probed by Soft X Rays Print The geometric structure of liquid water has been investigated in detail by many techniques, but many...

345

Neural network calibration for miniature multi-hole pressure probes  

E-Print Network (OSTI)

A robust and accurate neural network based algorithm phics. for the calibration of miniature multi-hole pressure probes has been developed and a detailed description of its features and use is presented. The code that was developed was intended...

Vijayagopal, Rajesh

1998-01-01T23:59:59.000Z

346

Probing Aqueous Surfaces by ToF-SIMS. | EMSL  

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

beneath it. This window supports the liquid against the vacuum by the liquids surface tension and limits the high-density vapor region traversed by the probe beams to...

347

Effect of filament supports on emissive probe measurements  

SciTech Connect

We have constructed an emissive probe with a thin tungsten filament spot-welded across two nickel wires insulated with ceramic paint. We show that the ceramic supports covering the nickel wires have a large effect on the potential measurements in low-density plasmas. It is found that the potential measured by the emissive probe is more negative than the potential derived from a Langmuir probe current-voltage (I-V) characteristic curve when the plasma density is so low that the emitting filament remains immersed in the sheaths of the ceramic supports. The length of the filament L needs to be larger than about 2 Debye lengths (L > 2{lambda}{sub De}) in order to avoid the influence of the ceramic supports and to achieve reliable plasma potential measurements using emissive probes.

Wang, X.; Howes, C. T. [Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309 (United States); NASA Lunar Science Institute: Colorado Center for Lunar Dust and Atmospheric Studies, Boulder, Colorado 80309 (United States); Horanyi, M. [Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309 (United States); NASA Lunar Science Institute: Colorado Center for Lunar Dust and Atmospheric Studies, Boulder, Colorado 80309 (United States); Department of Physics, University of Colorado, Boulder, Colorado 80309 (United States); Robertson, S. [NASA Lunar Science Institute: Colorado Center for Lunar Dust and Atmospheric Studies, Boulder, Colorado 80309 (United States); Department of Physics, University of Colorado, Boulder, Colorado 80309 (United States)

2013-01-15T23:59:59.000Z

348

Robustness to systematics for future dark energy probes  

Science Journals Connector (OSTI)

......acoustic oscillation (BAO) surveys. For the simplified systematic...somewhat more robust probe of dark energy parameters than the BAO. We...upcoming large-scale cosmological surveys, such as Dark Energy Survey (DES),1 Baryon Oscillation......

Marisa C. March; Roberto Trotta; Luca Amendola; Dragan Huterer

2011-07-21T23:59:59.000Z

349

Dynamic study of tunable stiffness scanning microscope probe  

E-Print Network (OSTI)

This study examines the dynamic characteristics of the in-plane tunable stiffness scanning microscope probe for an atomic force microscope (AFM). The analysis was carried out using finite element analysis (FEA) methods for ...

Vega Gonzlez, Myraida Anglica

2005-01-01T23:59:59.000Z

350

Phylogenetic analysis and development of probes for differentiating methylotrophic bacteria.  

Science Journals Connector (OSTI)

...accurately determine its phylogenetic relation- ship with other methanotrophs. Probes 1035-RuMP...numerous blotting experiments. The nonradioactive detection system performed reliably with detection down to 10 ng of RNA from pure cultures. The...

G A Brusseau; E S Bulygina; R S Hanson

1994-02-01T23:59:59.000Z

351

Parylene Coated Silicon Probes for Neural Prosthesis Ray Huang1*  

E-Print Network (OSTI)

breakage. However, manufacturing limitations have prevented a strong and biocompatible silicon electrode as well as the in vitro electrical characterization of the gold and platinum micro electrodes. Keywords - parylene cable; neural prosthesis; silicon probe I. INTRODUCTION An important

Andersen, Richard

352

Matter wave optical techniques for probing many-body targets  

E-Print Network (OSTI)

This thesis reports on our investigation of the uses of matter waves to probe many-body targets. We begin by discussing decoherence in an atom interferometer, in which a free gas acts as a refractive medium for a matter ...

Sanders, Scott Nicholas

2010-01-01T23:59:59.000Z

353

Probing SZ Source Detection with Gasdynamical Simulations  

E-Print Network (OSTI)

The huge worldwide investment in CMB experiments should make the Sunyaev-Zeldovich (SZ) effect a key probe of the cosmic web in the near future. For the promise to be realized, substantial development of simulation and analysis tools to relate observation to theory is needed. The high nonlinearity and dissipative/feedback gas physics lead to highly non-Gaussian patterns that are much more difficult to analyze than Gaussian primary anisotropies for which the procedures are reasonably well developed. Historical forecasts for what CMB experiments might see used semi-analytic tools, including large scale map constructions, with localized and simplified pressure structures distributed on a point process of (clustered) sources. Hydro studies beyond individual cluster/supercluster systems were inadequate, but now large-volume simulations with high resolution are beginning to shift the balance. We illustrate this by applying ``Gasoline'' (parallelized Tree+SPH) computations to construct SZ maps and derive statistical measures. We believe rapid Monte Carlo simulations using parameterized templates centered on point processes informed by optical and other means on the observational side, and by hydro simulations on the theory side, should play an important role in pipelines to analyze the new SZ field data. We show that localized sources should dominate upcoming SZ experiments, identify sources in the maps under filtering and noise levels expected for these experiments, use the RCS photometric optical survey as an example of redshift localization, and discuss whether cosmic web patterns such as superclusters can be enhanced when such extra source information is supplied.

J. Richard Bond; Marcelo I. Ruetalo; James W. Wadsley; Michael D. Gladders

2001-12-20T23:59:59.000Z

354

Probing Pulsar Winds Using Inverse Compton Scattering  

E-Print Network (OSTI)

We investigate the effects of inverse Compton scattering by electrons and positrons in the unshocked winds of rotationally-powered binary pulsars. This process can scatter low energy target photons to produce gamma rays with energies from MeV to TeV. The binary radio pulsars PSR B1259-63 and PSR J0045-73 are both in close eccentric orbits around bright main sequence stars which provide a huge density of low energy target photons. The inverse Compton scattering process transfers momentum from the pulsar wind to the scattered photons, and therefore provides a drag which tends to decelerate the pulsar wind. We present detailed calculations of the dynamics of a pulsar wind which is undergoing inverse Compton scattering, showing that the deceleration of the wind of PSR B1259-63 due to `inverse Compton drag' is small, but that this process may confine the wind of PSR J0045-73 before it attains pressure balance with the outflow of its companion star. We calculate the spectra and light curves of the resulting inverse Compton emission from PSR B1259-63 and show that if the size of the pulsar wind nebula is comparable to the binary separation, then the gamma-ray emission from the unshocked wind may be detectable by atmospheric Cerenkov detectors or by the new generation of satellite-borne gamma-ray detectors such as INTEGRAL and GLAST. This mechanism may therefore provide a direct probe of the freely-expanding regions of pulsar winds, previously thought to be invisible.

Lewis Ball; J. G. Kirk

1999-08-18T23:59:59.000Z

355

Property:ExplorationOutcome | Open Energy Information  

Open Energy Info (EERE)

ExplorationOutcome ExplorationOutcome Jump to: navigation, search Property Name ExplorationOutcome Property Type String Description The outcome of an Exploration Activity. Allows Values could be useful with more improvements;useful;not indicated;not useful;useful regional reconnaissance Pages using the property "ExplorationOutcome" Showing 25 pages using this property. (previous 25) (next 25) 2 2-M Probe At Alum Area (Kratt, Et Al., 2010) + useful + 2-M Probe At Astor Pass Area (Kratt, Et Al., 2010) + useful + 2-M Probe At Black Warrior Area (DOE GTP) + not indicated + 2-M Probe At Columbus Salt Marsh Area (Kratt, Et Al., 2010) + useful + 2-M Probe At Dead Horse Wells Area (Kratt, Et Al., 2010) + useful + 2-M Probe At Desert Peak Area (Sladek, Et Al., 2007) + useful +

356

Comparison of linear and nonlinear acoustic probing of rock salt  

E-Print Network (OSTI)

COMPARISON OF LINEAR AND NONLINEAR ACOUSTIC PROBING OF ROCK SALT A Thesis by ALBERT MIN-HAO WANG Submitted to the Graduate College of Texas AIIM University in partial fulfillment of the requirement for the degree of MASTER OF SCIENCE August... 1980 Major Subject: Geophysics COMPARISON OF LINEAR AND NONLINEAR ACOUSTIC PROBING OF ROCK SALT A Thesis by ALBERT MIN-HAO 'RANG Approved as to style and content by: l('-/c~k~&(. Chairman o Comm ' ee Member) Member / I Member Head...

Wang, Albert Min-Hao

2012-06-07T23:59:59.000Z

357

Band excitation method applicable to scanning probe microscopy  

DOE Patents (OSTI)

Methods and apparatus are described for scanning probe microscopy. A method includes generating a band excitation (BE) signal having finite and predefined amplitude and phase spectrum in at least a first predefined frequency band; exciting a probe using the band excitation signal; obtaining data by measuring a response of the probe in at least a second predefined frequency band; and extracting at least one relevant dynamic parameter of the response of the probe in a predefined range including analyzing the obtained data. The BE signal can be synthesized prior to imaging (static band excitation), or adjusted at each pixel or spectroscopy step to accommodate changes in sample properties (adaptive band excitation). An apparatus includes a band excitation signal generator; a probe coupled to the band excitation signal generator; a detector coupled to the probe; and a relevant dynamic parameter extractor component coupled to the detector, the relevant dynamic parameter extractor including a processor that performs a mathematical transform selected from the group consisting of an integral transform and a discrete transform.

Jesse, Stephen; Kalinin, Sergei V

2013-05-28T23:59:59.000Z

358

A new seismic probe for coal seam hazard detection  

SciTech Connect

An experimental hole-to-hole seismic probe system has been developed for use in coal measure geology as a means of determining the structural conditions of coal seams. The source probe produces a 500-joule electric arc discharge whose seismic wavelet has a spectrum in the 200 to 2,000 Hz frequency range. Low compliance hydrophones contained in the source probe as well as in a separate seismic detector probe are matched to the frequency range of the source. Both probes are constructed with 5.72 cm diameter housings. The transducers in the probes are equipped with fluid-inflatable boots to permit operation in either wet or dry boreholes. Preliminary tests in vertical boreholes drilled 213 m apart in sedimentary rock formations show reliable operation and useful seismic propagation measurements along horizontal and oblique paths up to 232 m in length. Because the seismic wavelet has an accurately repeatable waveshape, multiple shots and signal averaging techniques can be used to enhance the signal-to-noise ratio and extend the transmission distances.

Peters, W.R.; Owen, T.E.; Thill, R.E.

1985-01-01T23:59:59.000Z

359

Situ soil sampling probe system with heated transfer line  

DOE Patents (OSTI)

The present invention is directed both to an improved in situ penetrometer probe and to a heated, flexible transfer line. The line and probe may be implemented together in a penetrometer system in which the transfer line is used to connect the probe to a collector/analyzer at the surface. The probe comprises a heater that controls a temperature of a geologic medium surrounding the probe. At least one carrier gas port and vapor collection port are located on an external side wall of the probe. The carrier gas port provides a carrier gas into the geologic medium, and the collection port captures vapors from the geologic medium for analysis. In the transfer line, a flexible collection line that conveys a collected fluid, i.e., vapor, sample to a collector/analyzer. A flexible carrier gas line conveys a carrier gas to facilitate the collection of the sample. A system heating the collection line is also provided. Preferably the collection line is electrically conductive so that an electrical power source can generate a current through it so that the internal resistance generates heat.

Robbat, Jr., Albert (Andover, MA)

2002-01-01T23:59:59.000Z

360

Improved analysis techniques for cylindrical and spherical double probes  

SciTech Connect

A versatile double Langmuir probe technique has been developed by incorporating analytical fits to Laframboise's numerical results for ion current collection by biased electrodes of various sizes relative to the local electron Debye length. Application of these fits to the double probe circuit has produced a set of coupled equations that express the potential of each electrode relative to the plasma potential as well as the resulting probe current as a function of applied probe voltage. These equations can be readily solved via standard numerical techniques in order to determine electron temperature and plasma density from probe current and voltage measurements. Because this method self-consistently accounts for the effects of sheath expansion, it can be readily applied to plasmas with a wide range of densities and low ion temperature (T{sub i}/T{sub e} Much-Less-Than 1) without requiring probe dimensions to be asymptotically large or small with respect to the electron Debye length. The presented approach has been successfully applied to experimental measurements obtained in the plume of a low-power Hall thruster, which produced a quasineutral, flowing xenon plasma during operation at 200 W on xenon. The measured plasma densities and electron temperatures were in the range of 1 Multiplication-Sign 10{sup 12}-1 Multiplication-Sign 10{sup 17} m{sup -3} and 0.5-5.0 eV, respectively. The estimated measurement uncertainty is +6%/-34% in density and +/-30% in electron temperature.

Beal, Brian; Brown, Daniel; Bromaghim, Daron [Air Force Research Laboratory, 1 Ara Rd., Edwards Air Force Base, California 93524 (United States); Johnson, Lee [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Dr., Pasadena, California 91109 (United States); Blakely, Joseph [ERC Inc., 1 Ara Rd., Edwards Air Force Base, California 93524 (United States)

2012-07-15T23:59:59.000Z

Note: This page contains sample records for the topic "activity 2-m probe" 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

Crystalline Nanoporous Frameworks: a Nanolaboratory for Probing Excitonic Device Concepts.  

SciTech Connect

Electro-optical organic materials hold great promise for the development of high-efficiency devices based on exciton formation and dissociation, such as organic photovoltaics (OPV) and organic light-emitting devices (OLEDs). However, the external quantum efficiency (EQE) of both OPV and OLEDs must be improved to make these technologies economical. Efficiency rolloff in OLEDs and inability to control morphology at key OPV interfaces both reduce EQE. Only by creating materials that allow manipulation and control of the intimate assembly and communication between various nanoscale excitonic components can we hope to first understand and then engineer the system to allow these materials to reach their potential. The aims of this proposal are to: 1) develop a paradigm-changing platform for probing excitonic processes composed of Crystalline Nanoporous Frameworks (CNFs) infiltrated with secondary materials (such as a complimentary semiconductor); 2) use them to probe fundamental aspects of excitonic processes; and 3) create prototype OPVs and OLEDs using infiltrated CNF as active device components. These functional platforms will allow detailed control of key interactions at the nanoscale, overcoming the disorder and limited synthetic control inherent in conventional organic materials. CNFs are revolutionary inorganic-organic hybrid materials boasting unmatched synthetic flexibility that allow tuning of chemical, geometric, electrical, and light absorption/generation properties. For example, bandgap engineering is feasible and polyaromatic linkers provide tunable photon antennae; rigid 1-5 nm pores provide an oriented, intimate host for triplet emitters (to improve light emission in OLEDs) or secondary semiconducting polymers (creating a charge-separation interface in OPV). These atomically engineered, ordered structures will enable critical fundamental questions to be answered concerning charge transport, nanoscale interfaces, and exciton behavior that are inaccessible in disordered systems. Implementing this concept also creates entirely new dimensions for device fabrication that could both improve performance, increase durability, and reduce costs with unprecedented control of over properties. This report summarizes the key results of this project and is divided into sections based on publications that resulted from the work. We begin in Section 2 with an investigation of light harvesting and energy transfer in a MOF infiltrated with donor and acceptor molecules of the type typically used in OPV devices (thiophenes and fullerenes, respectively). The results show that MOFs can provide multiple functions: as a light harvester, as a stabilizer and organizer or the infiltrated molecules, and as a facilitator of energy transfer. Section 3 describes computational design of MOF linker groups to accomplish light harvesting in the visible and facilitate charge separation and transport. The predictions were validated by UV-visible absorption spectroscopy, demonstrating that rational design of MOFs for light-harvesting purposes is feasible. Section 4 extends the infiltration concept discussed in Section to, which we now designate as %22Molecule%40MOF%22 to create an electrically conducting framework. The tailorability and high conductivity of this material are unprecedented, meriting publication in the journal Science and spawning several Technical Advances. Section 5 discusses processes we developed for depositing MOFs as thin films on substrates, a critical enabling technology for fabricating MOF-based electronic devices. Finally, in Section 6 we summarize results showing that a MOF thin film can be used as a sensitizer in a DSSC, demonstrating that MOFs can serve as active layers in excitonic devices. Overall, this project provides several crucial proofs-of- concept that the potential of MOFs for use in optoelectronic devices that we predicted several years ago [ 3 ] can be realized in practice.

Allendorf, Mark D.; Azoulay, Jason; Ford, Alexandra Caroline [Sandia National Laboratories, Albuquerque, NM; Foster, Michael E.; El Gabaly Marquez, Farid; Leonard, Francois Leonard; Leong-Hau, Kirsty; Stavila, Vitalie; Talin, Albert Alec; Wong, Brian M.; Brumbach, Michael T. [Sandia National Laboratories, Albuquerque, NM; Van Gough, D.; Lambert, Timothy N. [Sandia National Laboratories, Albuquerque, NM; Rodriguez, Mark A. [Sandia National Laboratories, Albuquerque, NM; Spoerke, Erik David [Sandia National Laboratories, Albuquerque, NM; Wheeler, David R. [Sandia National Laboratories, Albuquerque, NM; Deaton, Joseph C.; Centrone, Andrea; Haney, Paul; Kinney, R.; Szalai, Veronika; Yoon, Heayoung P.

2014-09-01T23:59:59.000Z

362

Backscattering of gyrotron radiation and short-wavelength turbulence during electron cyclotron resonance plasma heating in the L-2M stellarator  

SciTech Connect

Backscattering of gyrotron radiation ({theta} = {pi}) by short-wavelength density fluctuations (k{sub Up-Tack} = 30 cm{sup -1}) in the plasma of the L-2M stellarator was studied under conditions of electron cyclotron resonance (ECR) plasma heating at the second harmonic of the electron gyrofrequency (75 GHz). The scattering of the O-wave emerging due to the splitting of the linearly polarized gyrotron radiation into the X- and O-waves was analyzed. The signal obtained after homodyne detection of scattered radiation is a result of interference of the reference signal, the quasi-steady component, and the fast oscillating component. The coefficients of reflection of the quasi-steady component, R{sub =}{sup 2}(Y), and fast oscillating component, R{sub {approx}}{sup 2}(Y), of scattered radiation are estimated. The growth of the R{sub {approx}}{sup 2}(Y) coefficient from 3.7 Multiplication-Sign 10{sup -4} to 5.2 Multiplication-Sign 10{sup -4} with increasing ECR heating power from 190 to 430 kW is found to correlate with the decrease in the energy lifetime from 1.9 to 1.46 ms. The relative density of short-wavelength fluctuations is estimated to be Left-Pointing-Angle-Bracket n{sub {approx}}{sup 2} Right-Pointing-Angle-Bracket / Left-Pointing-Angle-Bracket n{sub e}{sup 2} Right-Pointing-Angle-Bracket = 3 Multiplication-Sign 10{sup -7}. It is shown that the frequencies of short-wavelength fluctuations are in the range 10-150 kHz. The recorded short-wavelength fluctuations can be interpreted as structural turbulence, the energy of which comprises {approx}10% of the total fluctuations energy. Simulations of transport processes show that neoclassical heat fluxes are much smaller than anomalous ones. It is suggested that short-wavelength turbulence plays a decisive role in the anomalous heat transport.

Batanov, G. M.; Borzosekov, V. D., E-mail: tinborz@gmail.com; Kovrizhnykh, L. M.; Kolik, L. V.; Konchekov, E. M.; Malakhov, D. V.; Petrov, A. E.; Sarksyan, K. A.; Skvortsova, N. N.; Stepakhin, V. D.; Kharchev, N. K. [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)

2013-06-15T23:59:59.000Z

363

Linking specific heterotrophic bacterial populations to bioreduction of uranium and nitrate using stable isotope probing in contaminated subsurface sediments  

SciTech Connect

Shifts in terminal electron-accepting processes during biostimulation of uranium-contaminated sediments were linked to the composition of stimulated microbial populations using DNA-based stable isotope probing. Nitrate reduction preceded U(VI) and Fe(III) reduction in [{sup 13}C]ethanol-amended microcosms. The predominant, active denitrifying microbial groups were identified as members of the Betaproteobacteria, whereas Actinobacteria dominated under metal-reducing conditions.

Akob, Denise M. [Florida State University; Kerkhof, Lee [Rutgers University; Kusel, Kirsten [Friedrich Schiller University Jena, Jena Germany; Watson, David B [ORNL; Palumbo, Anthony Vito [ORNL; Kostka, Joel [Florida State University

2011-01-01T23:59:59.000Z

364

Filename: FVB Invo2 Forced 121061.CHP Probe Array Type: MG_U74Av2  

E-Print Network (OSTI)

121061.CHP Probe Array Type: MG_U74Av2 Algorithm: Statistical Probe Pair Thr: 8 Controls: Antisense.13 ______________________________________________________________________ ______________________________________________________________________ Filename: FVB Invo2 Forced 121062.CHP Probe Array Type: MG_U74Av2 Algorithm: Statistical Probe Pair Thr: 8

Betz, William J.

365

The Sun is an active, variable,  

E-Print Network (OSTI)

The Sun is an active, variable, magnetic star with oscillations on its surface and deep within its the physical processes of the Sun-Earth connection. Visit Us on the Web: Solar Terrestrial Probes Program: http://stp.gsfc.nasa.gov For More Information, See: Sun-Earth Connection: http://sec.gsfc.nasa.gov Living With a Star: http

Christian, Eric

366

Use of Inorganic and Organic Nitrogen by Synechococcus spp. and Diatoms on the West Florida Shelf as Measured Using Stable Isotope Probing  

Science Journals Connector (OSTI)

...of N nutrition in marine phytoplankton communities...photosynthetically active radiation (PAR) () and salinity...support, C. Heil for ship access, M. Garrett...phycoerythrin in a marine cyanobacterium...isotope probing. | The marine nitrogen (N) cycle...technique that allows detection of uptake of individual...

Boris Wawrik; Amy V. Callaghan; Deborah A. Bronk

2009-09-04T23:59:59.000Z

367

In Situ Analytical Electron Microscopy for Probing Nanoscale Electrochemistry  

SciTech Connect

Oxides and their tailored structures are at the heart of electrochemical energy storage technologies and advances in understanding and controlling the dynamic behaviors in the complex oxides, particularly at the interfaces, during electrochemical processes will catalyze creative design concepts for new materials with enhanced and better-understood properties. Such knowledge is not accessible without new analytical tools. New innovative experimental techniques are needed for understanding the chemistry and structure of the bulk and interfaces, more importantly how they change with electrochemical processes in situ. Analytical Transmission Electron Microscopy (TEM) is used extensively to study electrode materials ex situ and is one of the most powerful tools to obtain structural, morphological, and compositional information at nanometer scale by combining imaging, diffraction and spectroscopy, e.g., EDS (energy dispersive X-ray spectrometry) and Electron Energy Loss Spectrometry (EELS). Determining the composition/structure evolution upon electrochemical cycling at the bulk and interfaces can be addressed by new electron microscopy technique with which one can observe, at the nanometer scale and in situ, the dynamic phenomena in the electrode materials. In electrochemical systems, for instance in a lithium ion battery (LIB), materials operate under conditions that are far from equilibrium, so that the materials studied ex situ may not capture the processes that occur in situ in a working battery. In situ electrochemical operation in the ultra-high vacuum column of a TEM has been pursued by two major strategies. In one strategy, a 'nano-battery' can be fabricated from an all-solid-state thin film battery using a focused ion beam (FIB). The electrolyte is either polymer based or ceramic based without any liquid component. As shown in Fig. 1a, the interfaces between the active electrode material/electrolyte can be clearly observed with TEM imaging, in contrast to the composite electrodes/electrolyte interfaces in conventional lithium ion batteries, depicted in Fig.1b, where quantitative interface characterization is extremely difficult if not impossible. A second strategy involves organic electrolyte, though this approach more closely resembles the actual operation conditions of a LIB, the extreme volatility In Situ Analytical Electron Microscopy for Probing Nanoscale Electrochemistry by Ying Shirley Meng, Thomas McGilvray, Ming-Che Yang, Danijel Gostovic, Feng Wang, Dongli Zeng, Yimei Zhu, and Jason Graetz of the organic electrolytes present significant challenges for designing an in situ cell that is suitable for the vacuum environment of the TEM. Significant progress has been made in the past few years on the development of in situ electron microscopy for probing nanoscale electrochemistry. In 2008, Brazier et al. reported the first cross-section observation of an all solid-state lithium ion nano-battery by TEM. In this study the FIB was used to make a 'nano-battery,' from an all solid-state battery prepared by pulsed laser deposition (PLD). In situ TEM observations were not possible at that time due to several key challenges such as the lack of a suitable biasing sample holder and vacuum transfer of sample. In 2010, Yamamoto et al. successfully observed changes of electric potential in an all-solid-state lithium ion battery in situ with electron holography (EH). The 2D potential distribution resulting from movement of lithium ions near the positive-electrode/electrolyte interface was quantified. More recently Huang et al. and Wang et al. reported the in situ observations of the electrochemical lithiation of a single SnO{sub 2} nanowire electrode in two different in situ setups. In their approach, a vacuum compatible ionic liquid is used as the electrolyte, eliminating the need for complicated membrane sealing to prevent the evaporation of carbonate based organic electrolyte into the TEM column. One main limitation of this approach is that EELS spectral imaging is not possible due to the high plasmon signal of the ionic li

Graetz J.; Meng, Y.S.; McGilvray, T.; Yang, M.-C.; Gostovic, D.; Wang, F.; Zeng, D.; Zhu, Y.

2011-10-31T23:59:59.000Z

368

Analysis of cylindrical Langmuir probe using experiment and different theories  

SciTech Connect

Cylindrical probe data have been analyzed using different theories in order to determine some plasma parameters (electron temperature and electron and ion densities). Langmuir probe data are obtained in a cylindrical DC glow discharge in the positive column plasma at argon gas pressures varied from 0.5 to 6 Torr and at constant discharge current equal to 10 mA. The electron density has calculated from the electron current at the space potential and from Orbital Motion Limited (OML) collisionless theory. Ion density has obtained from the OML analysis of the ion saturation currents. In addition, the electron temperature has measured by three different methods using probe and electrons currents. The electron temperature T{sub e}, plasma density n{sub e}, and space potential V{sub s}, have been obtained from the measured single cylindrical probe I-V characteristic curves. The radial distribution of the electron temperature and plasma density along the glow discharge are measured and discussed. Using the collisionless theories by Langmuir cylindrical probe and up to several Torr argon gas pressures the differences between the values of electron temperature and electron and ion densities stay within reasonable error limits.

Hassouba, M. A., E-mail: hassouba@yahoo.com [Benha University, Physics Department, Faculty of Science (Egypt); Galaly, A. R. [Umm Al-Qura University, Engineering Science Department, Faculty of Community (Saudi Arabia)] [Umm Al-Qura University, Engineering Science Department, Faculty of Community (Saudi Arabia); Rashed, U. M. [Alazhar University, Physics Department, Faculty of Science (Egypt)] [Alazhar University, Physics Department, Faculty of Science (Egypt)

2013-03-15T23:59:59.000Z

369

Strategies for Probing Nanometer-Scale Electrocatalysts: From Single Particles to Catalyst-Membrane Architectures  

SciTech Connect

The project primary objectives are to prepare and elucidate the promoting properties of materials that possess high activity for the conversion of hydrogen and related small molecules (water, oxygen, carbon monoxide and methanol) in polymer electrolyte fuel cells. One area of research has focused on the study of catalyst materials. Protocols were developed for probing the structure and benchmarking the activity of Pt and Pt bimetallic nanometer-scale catalyst against Pt single crystal electrode standards. A second area has targeted fuel cell membrane and the advancement of simple methods mainly based on vibrational spectroscopy that can be applied broadly in the study of membrane structure and transport properties. Infrared and Raman methods combined with least-squares data modeling were applied to investigate and assist the design of robust, proton conductive membranes, which resist reactant crossover.

Korzeniewski, Carol

2014-01-20T23:59:59.000Z

370

ECO2M: A TOUGH2 Fluid Property Module for Mixtures of Water, NaCl, and CO2, Including Super- and Sub-Critical Conditions, and Phase Change Between Liquid and Gaseous CO2  

SciTech Connect

ECO2M is a fluid property module for the TOUGH2 simulator (Version 2.0) that was designed for applications to geologic storage of CO{sub 2} in saline aquifers. It includes a comprehensive description of the thermodynamics and thermophysical properties of H{sub 2}O - NaCl - CO{sub 2} mixtures, that reproduces fluid properties largely within experimental error for temperature, pressure and salinity conditions in the range of 10 C {le} T {le} 110 C, P {le} 600 bar, and salinity from zero up to full halite saturation. The fluid property correlations used in ECO2M are identical to the earlier ECO2N fluid property package, but whereas ECO2N could represent only a single CO{sub 2}-rich phase, ECO2M can describe all possible phase conditions for brine-CO{sub 2} mixtures, including transitions between super- and sub-critical conditions, and phase change between liquid and gaseous CO{sub 2}. This allows for seamless modeling of CO{sub 2} storage and leakage. Flow processes can be modeled isothermally or non-isothermally, and phase conditions represented may include a single (aqueous or CO{sub 2}-rich) phase, as well as two-and three-phase mixtures of aqueous, liquid CO{sub 2} and gaseous CO{sub 2} phases. Fluid phases may appear or disappear in the course of a simulation, and solid salt may precipitate or dissolve. TOUGH2/ECO2M is upwardly compatible with ECO2N and accepts ECO2N-style inputs. This report gives technical specifications of ECO2M and includes instructions for preparing input data. Code applications are illustrated by means of several sample problems, including problems that had been previously solved with TOUGH2/ECO2N.

Pruess, K.

2011-04-01T23:59:59.000Z

371

Probing Core-Hole Localization in Molecular Nitrogen  

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

Probing Core-Hole Localization in Molecular Nitrogen Print Probing Core-Hole Localization in Molecular Nitrogen Print The behavior of the core hole created in molecular x-ray photoemission experiments has provided molecular scientists with a valuable window through which to probe the electronic structure and dynamics of molecules. But the answer to one fundamental quantum question-whether the core hole is localized or delocalized-has remained elusive for diatomic molecules in which both atoms are the same element. An international team of scientists from the University of Frankfurt in Germany, Berkeley Lab, Kansas State University, and Auburn University has now resolved the issue with an appropriate twist of quantum fuzziness. By means of coincident detection of the photoelectron ejected from molecular nitrogen and the Auger electron emitted femtoseconds later, the team found that how the measurements are done determines which description-localized or delocalized-is valid.

372

Probing Core-Hole Localization in Molecular Nitrogen  

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

Probing Core-Hole Localization in Molecular Nitrogen Print Probing Core-Hole Localization in Molecular Nitrogen Print The behavior of the core hole created in molecular x-ray photoemission experiments has provided molecular scientists with a valuable window through which to probe the electronic structure and dynamics of molecules. But the answer to one fundamental quantum question-whether the core hole is localized or delocalized-has remained elusive for diatomic molecules in which both atoms are the same element. An international team of scientists from the University of Frankfurt in Germany, Berkeley Lab, Kansas State University, and Auburn University has now resolved the issue with an appropriate twist of quantum fuzziness. By means of coincident detection of the photoelectron ejected from molecular nitrogen and the Auger electron emitted femtoseconds later, the team found that how the measurements are done determines which description-localized or delocalized-is valid.

373

Probing Strain-Induced Changes in Electronic Structure with XMCD  

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

Probing Strain-Induced Changes Probing Strain-Induced Changes in Electronic Structure with XMCD Probing Strain-Induced Changes in Electronic Structure with XMCD Print Wednesday, 30 March 2011 00:00 The difference in the lattice constant of a substrate compared to a thin film deposited on top of it or a matrix compared to a nanocolumn embedded in it induces a lattice distortion-i.e., strain-in the nanostructure as compared to the bulk. The strong coupling of electronic properties with structural parameters in transition-metal oxides then allows tuning and ultimately controlling the physical characteristics of nanoarchitectures through strain. A research team from the UK and Berkeley has now demonstrated that soft x-ray magnetic circular dichroism (XMCD) techniques are uniquely suited to provide detailed information about the impact of strain on the electronic properties of magnetic oxide nanoarchitectures.

374

A laboratory on the four-point probe technique  

Science Journals Connector (OSTI)

We describe how a classic electrostaticsexperiment can be modified to be a four-point probe lab experiment. Students use the four-point probe technique to investigate how the measured resistance varies as a function of the position of the electrodes with respect to the edge of the sample. By using elementary electromagnetism concepts such as the superposition principle the continuity equation the relation between electric field and electric potential and Ohms law a simple model is derived to describe the four-point probe technique. Although the lab introduces the students to the ideas behind the Laplace equation and the methods of images advanced mathematics is avoided so that the experiment can be done in trigonometry and algebra based physics courses. In addition the experiment introduces the students to a standard measurement technique that is widely used in industry and thus provides them with useful hands-on experience.

Andrew P. Schuetze; Wayne Lewis; Chris Brown; Wilhelmus J. Geerts

2004-01-01T23:59:59.000Z

375

Analyte detection using an active assay  

DOE Patents (OSTI)

Analytes using an active assay may be detected by introducing an analyte solution containing a plurality of analytes to a lacquered membrane. The lacquered membrane may be a membrane having at least one surface treated with a layer of polymers. The lacquered membrane may be semi-permeable to nonanalytes. The layer of polymers may include cross-linked polymers. A plurality of probe molecules may be arrayed and immobilized on the lacquered membrane. An external force may be applied to the analyte solution to move the analytes towards the lacquered membrane. Movement may cause some or all of the analytes to bind to the lacquered membrane. In cases where probe molecules are presented, some or all of the analytes may bind to probe molecules. The direction of the external force may be reversed to remove unbound or weakly bound analytes. Bound analytes may be detected using known detection types.

Morozov, Victor (Manassas, VA); Bailey, Charles L. (Cross Junction, VA); Evanskey, Melissa R. (Potomac Falls, VA)

2010-11-02T23:59:59.000Z

376

Capacitively coupled RF voltage probe having optimized flux linkage  

DOE Patents (OSTI)

An RF sensor having a novel current sensing probe and a voltage sensing probe to measure voltage and current. The current sensor is disposed in a transmission line to link all of the flux generated by the flowing current in order to obtain an accurate measurement. The voltage sensor is a flat plate which operates as a capacitive plate to sense voltage on a center conductor of the transmission line, in which the measured voltage is obtained across a resistance leg of a R-C differentiator circuit formed by the characteristic impedance of a connecting transmission line and a capacitance of the plate, which is positioned proximal to the center conductor.

Moore, James A. (Powell, TN); Sparks, Dennis O. (Maryville, TN)

1999-02-02T23:59:59.000Z

377

A nuclear magnetic resonance probe of group IV clathrates  

E-Print Network (OSTI)

A NUCLEAR MAGNETIC RESONANCE PROBE OF GROUP IV CLATHRATES A Dissertation by WEIPING GOU Submitted to the Oce of Graduate Studies of Texas A&M University in partial fulflllment of the requirements for the degree of DOCTOR OF PHILOSOPHY August 2008... Major Subject: Physics A NUCLEAR MAGNETIC RESONANCE PROBE OF GROUP IV CLATHRATES A Dissertation by WEIPING GOU Submitted to the Oce of Graduate Studies of Texas A&M University in partial fulflllment of the requirements for the degree of DOCTOR...

Gou, Weiping

2008-10-10T23:59:59.000Z

378

Measurement of effective sheath width around cutoff probe in low-pressure plasmas  

SciTech Connect

Previous studies indicated that the measurement results of microwave probes can be improved by applying the adequate sheath width to their measurement models, and consequently the sheath width around the microwave probe tips has become very important information for microwave probe diagnostics. In this paper, we propose a method for measuring the argon plasma sheath width around the cutoff probe tips by applying the circuit model to the cutoff probe phase spectrum. The measured sheath width of the cutoff probe was found to be in good agreement with the floated sheath width calculated from the Child-Langmuir sheath law. The physical reasons for a discrepancy between the two measurements are also discussed.

Kim, D. W.; Oh, W. Y. [Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of)] [Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of); You, S. J., E-mail: sjyou@kriss.re.kr; Kim, J. H. [Center for Vacuum Technology, Korea Research Institute of Standards and Science, Daejeon 305-306 (Korea, Republic of)] [Center for Vacuum Technology, Korea Research Institute of Standards and Science, Daejeon 305-306 (Korea, Republic of); Chang, H. Y. [Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of)] [Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 305-701 (Korea, Republic of)

2014-05-15T23:59:59.000Z

379

Probing Core-Hole Localization in Molecular Nitrogen  

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

Probing Core-Hole Localization Probing Core-Hole Localization in Molecular Nitrogen Probing Core-Hole Localization in Molecular Nitrogen Print Wednesday, 25 February 2009 00:00 The behavior of the core hole created in molecular x-ray photoemission experiments has provided molecular scientists with a valuable window through which to probe the electronic structure and dynamics of molecules. But the answer to one fundamental quantum question-whether the core hole is localized or delocalized-has remained elusive for diatomic molecules in which both atoms are the same element. An international team of scientists from the University of Frankfurt in Germany, Berkeley Lab, Kansas State University, and Auburn University has now resolved the issue with an appropriate twist of quantum fuzziness. By means of coincident detection of the photoelectron ejected from molecular nitrogen and the Auger electron emitted femtoseconds later, the team found that how the measurements are done determines which description-localized or delocalized-is valid.

380

Proximal Probes based Nanorobotic Drawing of Polymer Micro/Nanofibers  

E-Print Network (OSTI)

1 Proximal Probes based Nanorobotic Drawing of Polymer Micro/Nanofibers Amrinder S. Nain, Cristina cantilevers, custom 3D fibers, and fiber networks, are proposed to be fabricated. Poly(methyl methacrylate with diameters from few microns to 200 nm. Fabrication of crossed and linear networks of fibers is also

Sitti, Metin

Note: This page contains sample records for the topic "activity 2-m probe" 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

Electron Probe Micro-Analysis Nilanjan Chatterjee, Ph.D.  

E-Print Network (OSTI)

Electron Probe Micro-Analysis Nilanjan Chatterjee, Ph.D. Principal Research Scientist Electron of Technology #12;What we do with the Electron Microprobe Imaging and EDS qualitative analysis: ·Secondary electron (surface relief) ·Backscattered electron (composition) ·Cathodoluminescence ·Low resolution X

Rothman, Daniel

382

Probing the Temperature Profile of Energy Production in the Sun  

Science Journals Connector (OSTI)

The particle kinetic energies of thermonuclear pp fusion in the Sun (Gamow energy) produce small changes in the energies of pp solar neutrinos relative to those due only to exothermal energetics. This effect may be observable via the unique tools of the LENS solar neutrino detector. The temperature profile of energy production in the Sun may thus be directly probed for the first time.

Christian Grieb and R. S. Raghavan

2007-04-02T23:59:59.000Z

383

Probing scale interaction in brain dynamics through synchronization  

Science Journals Connector (OSTI)

...Theme Issue Complex network theory and the brain compiled and edited by David Papo, Javier...Bullmore Probing scale interaction in brain dynamics through synchronization Alessandro...Theme Issue Complex network theory and the brain . The mammalian brain operates in multiple...

2014-01-01T23:59:59.000Z

384

Methods for making nucleotide probes for sequencing and synthesis  

DOE Patents (OSTI)

Compositions and methods for making a plurality of probes for analyzing a plurality of nucleic acid samples are provided. Compositions and methods for analyzing a plurality of nucleic acid samples to obtain sequence information in each nucleic acid sample are also provided.

Church, George M; Zhang, Kun; Chou, Joseph

2014-07-08T23:59:59.000Z

385

Construction and testing of a flue-gas corrosion probe  

SciTech Connect

The selection of suitable materials for industrial, waste-heat- recovery systems requires assessment of corrosion of materials in various flue-gas environments. Such assessments involve exposing candidate materials to high-temperature flue gases and analyzing the effects of the exposure conditions. Because corrosion is related to flue-gas chemical composition and temperature, variations in temperature complicate the determination of corrosion rates and corrosion mechanisms. Conversely, a relatively constant temperature allows a more accurate determination of the effects of exposure conditions. For this reason, controlled-temperature flue-gas corrosion probes were constructed and tested for exposure tests of materials. A prototype probe consisted of a silicon carbide tube specimen, supporting hardware, and instrumentation for controlling temperature by internal heating and cooling. An advanced probe included other tubular specimens. Testing of the probes in an industrial-type furnace at a nominal flue-gas temperature of 1200{degree}C revealed that temperature control was inadequate. The cooling mode imposed a substantial axial-temperature gradient on the specimens; while the heating mode imposed a smaller gradient, the heating capacity was very limited. 10 refs., 10 figs., 2 tabs.

Federer, J.I.; McEvers, J.A.

1990-08-01T23:59:59.000Z

386

Probing dark energy with the shear-ratio geometric test  

Science Journals Connector (OSTI)

......CMB) we design an optimal survey for probing dark energy. This shows that a targeted...Belfiore et al. 2005), the Dark Energy Survey on the CTIO (Wester 2005...case for, for example, the Dark Energy Survey on the CTIO Blanco telescope......

A. N. Taylor; T. D. Kitching; D. J. Bacon; A. F. Heavens

2007-02-01T23:59:59.000Z

387

Probing Metagenomics by Rapid Cluster Analysis of Very Large Datasets  

E-Print Network (OSTI)

Probing Metagenomics by Rapid Cluster Analysis of Very Large Datasets Weizhong Li1 , John C. Wooley PLoS Biol 5, e16). Such datasets, not only by their sheer size, but also by many other features, defy datasets by advanced clustering strategies using the newly modified CD-HIT algorithm. We performed

Weitz, Joshua S.

388

Drop test of the Huygens Probe from a stratospheric balloon  

Science Journals Connector (OSTI)

Huygens is an atmospheric Probe designed for the in-situ exploration of the atmosphere of Titan. Huygens is the ESA-provided element of the joint NASA/ESA Cassini-Huygens mission to Saturn and Titan. The Cassini-Huygens launch is foreseen in October 1997. After a 7-year journey through the Solar system, Huygens will separate from the mother spacecraft, the Cassini Saturn Orbiter, in early November 2004. About 3 weeks after separation, the Huygens Probe will enter into the upper atmosphere of Titan protected by its heat shield. Following the ejection of the heat shield, the parachute will be deployed for controlling the descent through the atmosphere of Titan down to the surface. The descent will last between 2 and 212 hours. For the drop test, a full scale model of the Huygens Probe, which included all flight-like mechanisms and parachutes, was developed. The main objective of the test was to demonstrate the parachute deployment sequence; a secondary objective was to characterise the science-driven probe stability and spin design features during the parachute descent phase.

E. Jkel; P. Rideau; P.R. Nugteren; J. Underwood; P. Faucon; J-P. Lebreton

1998-01-01T23:59:59.000Z

389

Compact endocavity diagnostic probes for nuclear radiation detection  

DOE Patents (OSTI)

This invention relates to the field of radiation imaging. In particular, the invention relates to an apparatus and a method for imaging tissue or an inanimate object using a novel probe that has an integrated solid-state semiconductor detector and complete readout electronics circuitry.

Cui, Yonggang; James, Ralph; Bolotnikov, Aleksey

2014-08-26T23:59:59.000Z

390

Ultra-Fast Pump-Probe Detection Using Plasmas  

SciTech Connect

The temporal resolution of pump-flash interactions in the femtosecond-attosecond (fs-as) regime is limited by the characteristic time constants of the excited states in the detector material. If the relaxation time constant is appreciably longer that the time interval between the pump and probe signals the response of the detector material to the probe represents a temporal convolution with the pump and probe responses, setting a lower limit on the resolution to which the interval between the two pulses can be measured. In most of the solid state ultrafast detection schemes that are being considered for the ultrashort pulse x-ray sources under current development at SLAC and elsewhere the characteristic time constants are related to the bound states of the atoms comprising the material or to the relaxation times of phase transitions or charge carrier populations of the lattice, setting a probable lower limit on the attainable resolution on the order of {approx}0.1 ps. In this paper we consider a novel detection principle based on the excitation of specially prepared unbound states in an ionized plasma with high pump and probe fields, and estimate its potential for extending the lower limit of resolution into the attosecond (as) regime.

Tatchyn, R.; /SLAC

2006-02-17T23:59:59.000Z

391

Bubble Colloidal AFM Probes Formed from Ultrasonically Generated Bubbles  

E-Print Network (OSTI)

Letters Bubble Colloidal AFM Probes Formed from Ultrasonically Generated Bubbles Ivan U. Vakarelski forces between two small bubbles (80-140 µm) in aqueous solution during controlled collisions) was extended to measure interaction forces between a cantilever-attached bubble and surface-attached bubbles

Chan, Derek Y C

392

Note: Folded optical system for narrow forward looking probe  

SciTech Connect

An optical system is described in which a laser beam makes three passes through a single graded index lens, forming a focus along the optic axis. It has important applications in endoscopic probes, where the forward looking characteristic permits the avoidance of obstacles and the narrow structure makes it minimally invasive.

Hou, Hsuan-Chao; Hah, Dooyoung; Kim, Jeonghwan; Feldman, M., E-mail: mfeldm1@lsu.edu [Division of Electrical and Computer Engineering, Louisiana State University, Baton Rouge, Louisiana 70803 (United States)

2014-02-15T23:59:59.000Z

393

Rotary union for use with ultrasonic thickness measuring probe  

DOE Patents (OSTI)

A rotary union for rotatably supporting an ultrasonic probe operable to nondestructively measure the thickness of steam generator tubes to determine the amount of corrosion experienced by the tubes includes a stationary body having a bore therethrough and an outlet drain, and a fitting rotatably mounted within the upper end of the body. The fitting has a bore aligned with the bore of the body. An electrical cable positioned within a water supply tube in an annular arrangement passes through the bore of the body and the bore of the fitting. This annular arrangement, in turn, is positioned within a connector element which extends outwardly from the fitting bore and is connected to the ultrasonic probe. An elastomeric lower bushing seals the annular arrangement to the lower end of the rotary union body and an elastomeric upper bushing seals the connector element to the fitting to permit the connector element and the ultrasonic probe connected thereto to rotate with the fitting relative to the body. The lower and upper bushings permit water to be passed through the annular arrangement and into the ultrasonic probe and thereafter discharged between the annular arrangement and the connector element to the outlet drain of the rotary union body. 5 figs.

Nachbar, H.D.

1992-09-15T23:59:59.000Z

394

Femtosecond photoelectron and photoion spectrometer with vacuum ultraviolet probe pulses  

E-Print Network (OSTI)

We describe a setup to study ultrafast dynamics in gas-phase molecules using time-resolved photoelectron and photoion spectroscopy. The vacuum ultraviolet (VUV) probe pulses are generated via strong field high-order harmonic generation from infrared femtosecond laser pulses. The band pass characteristic in transmission of thin indium (In) metal foil is exploited to isolate the $9^{\\text{th}}$ harmonic of the 800 nm fundamental (H9, 14 eV, 89 nm) from all other high harmonics. The $9^{\\text{th}}$ harmonic is obtained with high conversion efficiencies and has sufficient photon energy to access the complete set of valence electron levels in most molecules. The setup also allows for direct comparison of VUV single-photon probe with 800 nm multi-photon probe without influencing the delay of excitation and probe pulse or the beam geometry. We use a magnetic bottle spectrometer with high collection efficiency for electrons, serving at the same time as a time of flight spectrometer for ions. Characterization measurem...

Koch, Markus; Grilj, Jakob; Sistrunk, Emily; Ghr, Markus

2014-01-01T23:59:59.000Z

395

Technical Note Ultrasound Probe with Integrated ECG Lead: Feasibility Study  

E-Print Network (OSTI)

Technical Note Ultrasound Probe with Integrated ECG Lead: Feasibility Study ARCHANA RAMIREDDY 27708 stephen.w.smith@duke.edu We integrated electrocardiogram (ECG) leads onto the face of a cardiac of devices needed to col- lect cardiac information. Since the ECG leads were not placed on their standard

Smith, Stephen

396

Modeling of current characteristics of segmented Langmuir probe on DEMETER  

SciTech Connect

We model the current characteristics of the DEMETER Segmented Langmuir probe (SLP). The probe is used to measure electron density and temperature in the ionosphere at an altitude of approximately 700 km. It is also used to measure the plasma flow velocity in the satellite frame of reference. The probe is partitioned into seven collectors: six electrically insulated spherical segments and a guard electrode (the rest of the sphere and the small post). Comparisons are made between the predictions of the model and DEMETER measurements for actual ionospheric plasma conditions encountered along the satellite orbit. Segment characteristics are computed numerically with PTetra, a three-dimensional particle in cell simulation code. In PTetra, space is discretized with an unstructured tetrahedral mesh, thus, enabling a good representation of the probe geometry. The model also accounts for several physical effects of importance in the interaction of spacecraft with the space environment. These include satellite charging, photoelectron, and secondary electron emissions. The model is electrostatic, but it accounts for the presence of a uniform background magnetic field. PTetra simulation results show different characteristics for the different probe segments. The current collected by each segment depends on its orientation with respect to the ram direction, the plasma composition, the magnitude, and the orientation of the magnetic field. It is observed that the presence of light H{sup +} ions leads to a significant increase in the ion current branch of the I-V curves of the negatively polarized SLP. The effect of the magnetic field is demonstrated by varying its magnitude and direction with respect to the reference magnetic field. It is found that the magnetic field appreciably affects the electron current branch of the I-V curves of certain segments on the SLP, whereas the ion current branch remains almost unaffected. PTetra simulations are validated by comparing the computed characteristics and their angular anisotropy with the DEMETER measurements, as simulation results are found to be in good agreement with the measurements.

Imtiaz, Nadia; Marchand, Richard [Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1 (Canada)] [Department of Physics, University of Alberta, Edmonton, Alberta T6G 2E1 (Canada); Lebreton, Jean-Pierre [Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), CNRS-Universit d'Orlans, Orlans Cedex (France)] [Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (LPC2E), CNRS-Universit d'Orlans, Orlans Cedex (France)

2013-05-15T23:59:59.000Z

397

Probing thermonuclear supernova explosions with neutrinos  

E-Print Network (OSTI)

Aims: We present neutrino light curves and energy spectra for two representative type Ia supernova explosion models: a pure deflagration and a delayed detonation. Methods: We calculate the neutrino flux from $\\beta$ processes using nuclear statistical equilibrium abundances convoluted with approximate neutrino spectra of the individual nuclei and the thermal neutrino spectrum (pair+plasma). Results: Although the two considered thermonuclear supernova explosion scenarios are expected to produce almost identical electromagnetic output, their neutrino signatures appear vastly different, which allow an unambiguous identification of the explosion mechanism: a pure deflagration produces a single peak in the neutrino light curve, while the addition of the second maximum characterizes a delayed-detonation. We identified the following main contributors to the neutrino signal: (1) weak electron neutrino emission from electron captures (in particular on the protons Co55 and Ni56) and numerous beta-active nuclei produced by the thermonuclear flame and/or detonation front, (2) electron antineutrinos from positron captures on neutrons, and (3) the thermal emission from pair annihilation. We estimate that a pure deflagration supernova explosion at a distance of 1 kpc would trigger about 14 events in the future 50 kt liquid scintillator detector and some 19 events in a 0.5 Mt water Cherenkov-type detector. Conclusions: While in contrast to core-collapse supernovae neutrinos carry only a very small fraction of the energy produced in the thermonuclear supernova explosion, the SN Ia neutrino signal provides information that allows us to unambiguously distinguish between different possible explosion scenarios. These studies will become feasible with the next generation of proposed neutrino observatories.

A. Odrzywolek; T. Plewa

2011-03-27T23:59:59.000Z

398

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

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

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

399

The Electric Field and Waves Instruments on the Radiation Belt Storm Probes Mission  

E-Print Network (OSTI)

The Electric Fields and Waves (EFW) Instruments on the two Radiation Belt Storm Probe (RBSP) spacecraft (recently renamed the Van Allen Probes) are designed to measure three dimensional quasi-static and low frequency ...

Wygant, J. R.

400

Development of a microfluidic device for patterning multiple species by scanning probe lithography  

E-Print Network (OSTI)

Scanning Probe Lithography (SPL) is a versatile nanofabrication platform that leverages microfluidic ink delivery systems with Scanning Probe Microscopy (SPM) for generating surface-patterned chemical functionality on the sub-100 nm length scale...

Rivas Cardona, Juan Alberto

2009-06-02T23:59:59.000Z

Note: This page contains sample records for the topic "activity 2-m probe" 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

Bubbly Flow Experiment in Channel Using an Optical Probe and Tracking Algorithm  

E-Print Network (OSTI)

communication between the computer and optoelectronic unit. The probe takes advantage of the physics between two mediums, air and water (Fig. 8). The optical fiber, manufactured from glass, relays the signal in the probe. Internal reflection allows...

Khan, Abdul

2012-10-19T23:59:59.000Z

402

Cell-Trappable Fluorescent Probes for Nitric Oxide Visualization in Living Cells  

E-Print Network (OSTI)

Two new cell-trappable fluorescent probes for nitric oxide (NO) are reported based on either incorporation of hydrolyzable esters or conjugation to aminodextran polymers. Both probes are highly selective for NO over other ...

Pluth, Michael D.

403

The Architecture of the Qo Site of Cytochrome bc1 Complex Probed...  

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

Architecture of the Qo Site of Cytochrome bc1 Complex Probed by Superoxide Production. The Architecture of the Qo Site of Cytochrome bc1 Complex Probed by Superoxide Production....

404

Seminaphthofluorescein-Based Fluorescent Probes for Imaging Nitric Oxide in Live Cells  

E-Print Network (OSTI)

Fluorescent turn-on probes for nitric oxide based on seminaphthofluorescein scaffolds were prepared and spectroscopically characterized. The Cu(II) complexes of these fluorescent probes react with NO under anaerobic ...

Pluth, Michael D.

405

The Use of Synthetic DNA Probes for the Field Identification of Members of the Anopheles gambiae Complex  

Science Journals Connector (OSTI)

The series of cloned DNA probes were sequenced in order to define ... invariant within each species were used to prepare synthetic oligonucleotide probes to replace the cloned DNA probes (Table 2) (19,20...). The...

Susannah M. Hill; Julian M. Crampton

1996-01-01T23:59:59.000Z

406

Polymerase chain reaction and synthetic DNA probes: a means of distinguishing the causative agents of syphilis and yaws?  

Science Journals Connector (OSTI)

...Polymerase chain reaction and synthetic DNA probes: a means of distinguishing...Bilthoven, The Netherlands. Synthetic DNA probes specific for either the...Polymerase chain reaction and synthetic DNA probes: a means of distinguishing...

G T Noordhoek; B Wieles; J J van der Sluis; J D van Embden

1990-06-01T23:59:59.000Z

407

Thyroid hormone negatively regulates CDX2 and SOAT2 mRNA expression via induction of miRNA-181d in hepatic cells  

SciTech Connect

Highlights: Thyroid hormone induces miR-181d expression in human hepatic cells and mouse livers. Thyroid hormone downregulates CDX2 and SOAT2 (or ACAT2) via miR-181d. miR-181d reduces cholesterol output from human hepatic cells. -- Abstract: Thyroid hormones (THs) regulate transcription of many metabolic genes in the liver through its nuclear receptors (TRs). Although the molecular mechanisms for positive regulation of hepatic genes by TH are well understood, much less is known about TH-mediated negative regulation. Recently, several nuclear hormone receptors were shown to downregulate gene expression via miRNAs. To further examine the potential role of miRNAs in TH-mediated negative regulation, we used a miRNA microarray to identify miRNAs that were directly regulated by TH in a human hepatic cell line. In our screen, we discovered that miRNA-181d is a novel hepatic miRNA that was regulated by TH in hepatic cell culture and in vivo. Furthermore, we identified and characterized two novel TH-regulated target genes that were downstream of miR-181d signaling: caudal type homeobox 2 (CDX2) and sterol O-acyltransferase 2 (SOAT2 or ACAT2). CDX2, a known positive regulator of hepatocyte differentiation, was regulated by miR-181d and directly activated SOAT2 gene expression. Since SOAT2 is an enzyme that generates cholesteryl esters that are packaged into lipoproteins, our results suggest miR-181d plays a significant role in the negative regulation of key metabolic genes by TH in the liver.

Yap, Chui Sun; Sinha, Rohit Anthony [Cardiovascular and Metabolic Disorders, Duke-NUS Graduate Medical School, 8, College Road, Singapore 169857 (Singapore)] [Cardiovascular and Metabolic Disorders, Duke-NUS Graduate Medical School, 8, College Road, Singapore 169857 (Singapore); Ota, Sho; Katsuki, Masahito [Department of Molecular Endocrinology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai 980-8575 (Japan)] [Department of Molecular Endocrinology, Tohoku University Graduate School of Medicine, Seiryo-machi, Aoba-ku, Sendai 980-8575 (Japan); Yen, Paul Michael, E-mail: paul.yen@duke-nus.edu.sg [Cardiovascular and Metabolic Disorders, Duke-NUS Graduate Medical School, 8, College Road, Singapore 169857 (Singapore)

2013-11-01T23:59:59.000Z

408

Biophysical probing of Spartina maritima photo-system II changes during prolonged tidal submersion periods  

Science Journals Connector (OSTI)

Abstract Submergence is one of the major constrains affecting wetland plants, with inevitable impacts on their physiology and productivity. Global warming as a driving force of sea level rise, tend to increase the submersion periods duration. Photosynthesis biophysical probing arise as an important tool to understand the energetics underlying plant feedback to these constrains. As in previous studies with Spartina maritima, there was no inhibition of photosynthetic activity in submerged individuals. Comparing both donor and acceptor sides of the PSII, the first was more severely affected during submersion, driven by the inactivation of the OEC with consequent impairment of the ETC. Although this apparent damage in the PSII donor side, the electron transport per active reaction centre was not substantially affected, indicating that this reduction in the electron flow is accompanied by a proportional increase in the number of active reaction centres. These conditions lead to the accumulation of excessive reducing power, source of damaging ROS, counteracted by efficient energy dissipation processes and anti-oxidant enzymatic defences. This way, S.maritima appears as a well-adapted species with an evident photochemical plasticity towards submersion, allowing it to maintain its photosynthetic activity even during prolonged submersion periods.

B. Duarte; D. Santos; J.C. Marques; I. Caador

2014-01-01T23:59:59.000Z

409

Probing QCD with jets, photons and weak bosons at the LHC with ATLAS  

SciTech Connect

A summary of ATLAS measurements that probe 'hard' QCD interactions in the protonproton collisions of the LHC are presented.

Cooper, Ben [University College London, London (United Kingdom); Collaboration: ATLAS Collaboration

2012-10-23T23:59:59.000Z

410

Development of natural and synthetic DNA probes for OXA-2 and TEM-1 beta-lactamases.  

Science Journals Connector (OSTI)

...Article Development of natural and synthetic DNA probes for OXA-2 and TEM-1...polymorphism. Development of natural and synthetic DNA probes for OXA-2 and TEM-1...5 Development of Natural and Synthetic DNA Probes for OXA-2 and TEM-1...

M Boissinot; J Mercier; R C Levesque

1987-05-01T23:59:59.000Z

411

Selective probe of the morphology and local vibrations at carbon nanoasperities  

SciTech Connect

We introduce a way to selectively probe local vibration modes at nanostructured asperities such as tips of carbon nanohorns. Our observations benefit from signal amplification in surface-enhanced Raman scattering (SERS) at sites near a silver surface. We observe nanohorn tip vibration modes in the range 200-500 cm{sup -1}, which are obscured in regular Raman spectra. Ab initio density functional calculations assign modes in this frequency range to local vibrations at the nanohorn cap resembling the radial breathing mode of fullerenes. Careful interpretation of our SERS spectra indicates presence of caps with 5 or 6 pentagons, which are chemically the most active sites. Changes in the peak intensities and frequencies with time indicate that exposure to laser irradiation may cause structural rearrangements at the cap.

Fujimori, Toshihiko; Endo, Morinobu; Kaneko, Katsumi [Research Center for Exotic Nanocarbons (JST), Shinshu University, 4-17-1, Wakasato, Nagano-city 380-8553 (Japan); Urita, Koki; Moriguchi, Isamu [Department of Applied Chemistry, Faculty of Engineering, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki-shi, Nagasaki 852-8521 (Japan); Tomanek, David [Physics and Astronomy Department, Michigan State University, East Lansing, Michigan 48824 (United States); Ohba, Tomonori [Department of Chemistry, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522 (Japan)

2012-02-14T23:59:59.000Z

412

Probing Spatial, Electronic Structures with X-ray Scattering, Spectroscopic  

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

Probing Spatial, Electronic Structures with X-ray Scattering, Spectroscopic Probing Spatial, Electronic Structures with X-ray Scattering, Spectroscopic Techniques Wednesday, September 5, 2012 - 10:45am SLAC, Bldg. 137, Room 226 Gang Chen Seminar: Structures at atomic scales are traditionally determined through X-ray crystallography that amplifies scattering intensities by introducing spatial periodicity. For amorphous materials and many macromolecules, such as viruses, proteins and biofilms, it is hard to determine structures due to their incapability to crystallize or change of configuration during crystallization. In this talk, I will present the application of X-ray reflectivity and a newly developed fluctuation X-ray scattering technique to study the structures of lipid membranes and randomly oriented nanoparticles. Three different types of domain registrations occurring with

413

Probing Strain-Induced Changes in Electronic Structure with XMCD  

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

Probing Strain-Induced Changes in Electronic Structure with XMCD Print Probing Strain-Induced Changes in Electronic Structure with XMCD Print The difference in the lattice constant of a substrate compared to a thin film deposited on top of it or a matrix compared to a nanocolumn embedded in it induces a lattice distortion-i.e., strain-in the nanostructure as compared to the bulk. The strong coupling of electronic properties with structural parameters in transition-metal oxides then allows tuning and ultimately controlling the physical characteristics of nanoarchitectures through strain. A research team from the UK and Berkeley has now demonstrated that soft x-ray magnetic circular dichroism (XMCD) techniques are uniquely suited to provide detailed information about the impact of strain on the electronic properties of magnetic oxide nanoarchitectures.

414

Probing Strain-Induced Changes in Electronic Structure with XMCD  

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

Probing Strain-Induced Changes in Electronic Structure with XMCD Print Probing Strain-Induced Changes in Electronic Structure with XMCD Print The difference in the lattice constant of a substrate compared to a thin film deposited on top of it or a matrix compared to a nanocolumn embedded in it induces a lattice distortion-i.e., strain-in the nanostructure as compared to the bulk. The strong coupling of electronic properties with structural parameters in transition-metal oxides then allows tuning and ultimately controlling the physical characteristics of nanoarchitectures through strain. A research team from the UK and Berkeley has now demonstrated that soft x-ray magnetic circular dichroism (XMCD) techniques are uniquely suited to provide detailed information about the impact of strain on the electronic properties of magnetic oxide nanoarchitectures.

415

Probing Strain-Induced Changes in Electronic Structure with XMCD  

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

Probing Strain-Induced Changes in Electronic Structure with XMCD Print Probing Strain-Induced Changes in Electronic Structure with XMCD Print The difference in the lattice constant of a substrate compared to a thin film deposited on top of it or a matrix compared to a nanocolumn embedded in it induces a lattice distortion-i.e., strain-in the nanostructure as compared to the bulk. The strong coupling of electronic properties with structural parameters in transition-metal oxides then allows tuning and ultimately controlling the physical characteristics of nanoarchitectures through strain. A research team from the UK and Berkeley has now demonstrated that soft x-ray magnetic circular dichroism (XMCD) techniques are uniquely suited to provide detailed information about the impact of strain on the electronic properties of magnetic oxide nanoarchitectures.

416

Probing WWgamma coupling through e gamma --> nu W at ILC  

E-Print Network (OSTI)

The anomalous WWgamma coupling is probed through e gamma--> nu W at the ILC. With a spectacular single lepton final state, this process is well suited to study the above coupling. Within the narrow-width approximation, a semi-analytical study of the secondary lepton energy-angle double distribution is performed. Cross section measurements can probe delta-kappa-gamma to about +/- 0.004 for a luminosity of 100 /fb at 500 GeV center of mass energy with unpolarised electron beam. The limits derivable on lambda-gamma are comparatively more relaxed. These limits can be improved significantly by considering the angle and energy distributions of the final state muon. More importantly, the angular distributions at fixed energy values, and energy distribution at fixed angles present very interesting possibility of distinguishing the case of lambda-gamma=0, lambda-gamma 0.

Kumar, Satendra

2015-01-01T23:59:59.000Z

417

The Future of Hard and Electromagnetic Probes at RHIC  

E-Print Network (OSTI)

Potential near- and long-term physics opportunities with jets, heavy flavors and electromagnetic probes at the Relativistic Heavy Ion Collider (RHIC) are presented. Much new physics remains to be unveiled using these probes, due to their sensitivity to the initial high density stage of RHIC collisions, when quark-gluon plasma (QGP) formation is expected. Additional physics will include addressing deconfinement, chiral symmetry restoration, properties of the strongly-coupled QGP and a possible weakly-interacting QGP, color glass condensate in the initial state, and hadronization. To fully realize the physics prospects of the RHIC energy regime, new detector components must be added to existing experiments, the RHIC machine luminosity upgraded, and a possible new detector with significantly extended coverage and capabilities added.

John W. Harris

2005-03-18T23:59:59.000Z

418

Probing cosmic acceleration by using the SNLS3 SNIa dataset  

SciTech Connect

We probe the cosmic acceleration by using the recently released SNLS3 sample of 472 type Ia supernovae. Combining this type Ia supernovae dataset with the cosmic microwave background anisotropy data from the Wilkinson Microwave Anisotropy Probe 7-yr observations, the baryon acoustic oscillation results from the Sloan Digital Sky Survey data release 7, and the Hubble constant measurement from the Wide Field Camera 3 on the Hubble Space Telescope, we measure the dark energy equation of state w and the deceleration parameter q as functions of redshift by using the Chevallier-Polarski-Linder parametrization. Our result is consistent with a cosmological constant at 1? confidence level, without evidence for the recent slowing down of the cosmic acceleration. Furthermore, we consider three binned parametrizations (w is piecewise constant in redshift z) based on different binning methods. The similar results are obtained, i.e., the ?CDM model is still nicely compatible with current observations.

Li, Xiao-Dong; Wang, Shuang; Zhang, Wen-Shuai [Department of Modern Physics, University of Science and Technology of China, Hefei 230026 (China); Li, Song; Huang, Qing-Guo; Li, Miao, E-mail: renzhe@mail.ustc.edu.cn, E-mail: sli@itp.ac.cn, E-mail: swang@mail.ustc.edu.cn, E-mail: wszhang@mail.ustc.edu.cn, E-mail: huangqg@itp.ac.cn, E-mail: mli@itp.ac.cn [Institute of Theoretical Physics, Chinese Academy of Science, Beijing 100080 (China)

2011-07-01T23:59:59.000Z

419

Preparation and probing of the ground state coherence in Rubidium  

E-Print Network (OSTI)

We demonstrate the preparation and probing of the coherence between the hyperfine ground states |5S_{1/2}, F=1> and |5S_{1/2}, F=2> of the Rubidium 87 isotope. The effect of various coherence control techniques, i.e. fractional Stimulated Raman Adiabatic Passage and Coherent Population Return on the coherence are investigated. These techniques are implemented using nearly degenerate pump and Stokes lasers at 795nm (Rubidium D1 transition) which couple the two hyperfine ground states via the excited state |5P_{1/2}, F=1> through a resonant two-photon process, in which a coherent superposition of the two hyperfine ground states is established. The medium is probed by an additional weak laser, which generates a four-wave mixing signal proportional to the ground state coherence, and allows us to monitor its evolution in time. The experimental data are compared with numerical simulations.

Martin Oberst; Frank Vewinger; A. I. Lvovsky

2007-01-31T23:59:59.000Z

420

Nonlocal probes of thermalization in holographic quenches with spectral methods  

E-Print Network (OSTI)

We describe the application of pseudo-spectral methods to problems of holographic thermal quenches of relevant couplings in strongly coupled gauge theories. We focus on quenches of a fermionic mass term in a strongly coupled N=4 supersymmetric Yang-Mills plasma, and the subsequent equilibration of the system. From the dual gravitational perspective, we study gravitational collapse of a massive scalar field in asymptotically anti-de-Sitter geometry with a prescribed boundary condition for its non-normalizable mode. Access to the full background geometry of the gravitational collapse allows for the study of nonlocal probes of the thermalization process. We discuss the evolution of the apparent and the event horizons, the two-point correlation functions of operators of large conformal dimensions, and the evolution of the entanglement entropy of the system. We compare the thermalization process from the viewpoint of local (the one-point) correlation functions and these nonlocal probes, finding that the thermaliza...

Buchel, Alex; van Niekerk, Anton

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "activity 2-m probe" 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

Gamma-ray Bursts as Probes of Galaxy Evolution  

E-Print Network (OSTI)

Gamma-ray Bursts as Probes of Galaxy Evolution Daniele Malesani, Dark Cosmology Centre and the X of the "Universe") #12;What is a gamma-ray burst? Brief (ms - min) and intense (~10-7 erg cm­2 s­1 ) burst of soft to ongoing star formation "Naked-eye" GRB 080319B GRBs explode within star-forming galaxies Gamma-ray bursts

?umer, Slobodan

422

Electron dynamics in chromium probed with 20-fs optical pulses  

Science Journals Connector (OSTI)

Electron excitation and relaxation in chromium are probed with 20-fs time resolution using an ultrafast optical technique. We obtain good fits to the data for the transient reflectivity and transmittivity changes in a thin film using a simple model of electron relaxation, suggesting the existence of an efficient electron-electron thermalization process on ultrashort-time scales. Quantitative analysis allows the extraction of thermo-optic coefficients and dielectric constant variations related to both the electron and the lattice temperatures.

H. Hirori; T. Tachizaki; O. Matsuda; O. B. Wright

2003-09-16T23:59:59.000Z

423

Probing the Temperature Profile of Energy Production in the Sun  

E-Print Network (OSTI)

The particle kinetic energies of pp fusion in the sun (Gamow Energy) produce small changes in the energies of pp solar neutrinos relative to those due only to exothermal energetics. Observation of this effect may be possible via the unique tools of the upcoming LENS solar neutrino detector. The temperature profile of energy production in the sun may thus be directly probed for the first time.

Christian Grieb; R. S. Raghavan

2006-09-04T23:59:59.000Z

424

Probing the switching mechanism in ZnO nanoparticle memristors  

E-Print Network (OSTI)

a cryostat (Oxford Instruments, Optistat CF). After reflection from the back contact of the sample (45o incident angle), the probe beam was incident on a silicon photodiode connected via a current-to-voltage converter to a dual-channel lock... . In this case, although the height of barrier decreases, the charge injection through the barrier shifts 7 from a tunneling mechanism to thermionic emission.24 Furthermore, the hopping mechanism dominates the charge transport inside the film, due...

Li, C.; Beirne, G. J.; Kamita, G.; Lakhwani, G.; Wang, J.; Greenham, N. C.

2014-01-01T23:59:59.000Z

425

High temperature electrochemical corrosion rate probes for combustion environments  

SciTech Connect

Electrochemical corrosion rate probes have been constructed and tested along with mass loss coupons in an air plus water vapor and a N2/O2/CO2 plus water vapor environment. Temperatures ranged from 200? to 700?C. Results show that electrochemical corrosion rates for ash-covered mild steel are a function of time, temperature and process environment. Correlation between the electrochemical and mass loss corrosion rates was poor.

Covino, Bernard S., Jr.; Bullard, Sophie J.; Cramer, Stephen D.; Holcomb, Gordon R.; Ziomek-Moroz, Margaret; Eden, David A. (Intercorr International Inc.); Kane, Russell D. (Intercorr International Inc.); Eden, Dawn C. (Intercorr International Inc.)

2004-01-01T23:59:59.000Z

426

Pump probe spectroscopy of quasiparticle dynamics in cuprate superconductors  

SciTech Connect

Pump probe spectroscopy is used to examine the picosecond response of a BSCCO thin film, and two YBCO crystals in the near infrared. The role of pump fluence and temperature have been closely examined in an effort to clarify the mechanism by which the quasiparticles rejoin the condensate. BSCCO results suggest that the recombination behavior is consistent with the d-wave density of states in that quasiparticles appear to relax to the nodes immediately before they rejoin the condensate. The first substantial investigation of polarized pump probe response in detwinned YBCO crystals is also reported. Dramatic doping dependent anisotropies along the a and b axes are observed in time and temperature resolved studies. Among many results, we highlight the discovery of an anomalous temperature and time dependence of a- axis response in optimally doped YBCO. We also report on the first observation of the photoinduced response in a magnetic field. We find the amplitude of the response, and in some cases, the dynamics considerably changed with the application of a 6T field. Finally, we speculate on two of the many theoretical directions stimulated by our results. We find that the two-fluid model suggests a mechanism to explain how changes at very low energies are visible to a high-energy probe. Also discussed are basic recombination processes which may play a role in the observed decay.

Segre, Gino P.

2001-05-01T23:59:59.000Z

427

Guarded capacitance probes for measuring particle concentration and flow  

DOE Patents (OSTI)

Guarded capacitance probe structures are constructed with guard electrodes surrounding one or more sensor electrodes and ground electrodes or grounded surfaces surrounding the guard electrodes. In a one sensor embodiment, the probe utilizes an apertured sensor electrode and the guard electrode both surrounds the sensor electrode and fills the aperture. This embodiment is particularly useful for measuring particle concentration in a fluid suspension contained within a vessel or pipe. The portion of the guard electrode within the aperture of the sensor electrode prevents electric field lines from emanating from the sensor electrode into the fluid suspension and toward infinity. A two sensor embodiment of the probe is useful for measuring flow velocities of fluid suspensions through cross correlation of the outputs generated by each sensor. The relative dimensions of the guard and sensor electrodes are selected to provide the most accurate measurements by confining the electric lines emanating from the sensor electrode or electrodes and terminating on the surrounding grounded surfaces to a small measurement volume of the fluid suspension near the vessel or pipe wall. 14 figs.

Louge, M.Y.

1995-10-17T23:59:59.000Z

428

Eddy current probe and method for flaw detection in metals  

DOE Patents (OSTI)

A flaw detecting system is shown which includes a probe having a pair of ferrite cores with in-line gaps in close proximity to each other. An insulating, non-magnetic, non-conducting holder fills the gaps and supports the ferrite cores in a manner such that the cores form a generally V-shape. Each core is provided with an excitation winding and a detection winding. The excitation windings are connected in series or parallel with an rf port for connection thereof to a radio frequency source. The detection windings, which are differentially wound, are connected in series circuit to a detector port for connection to a voltage measuring instrument. The ferrite cores at the in-line gaps directly engage the metal surface of a test piece, and the probe is scanned along the test piece. In the presence of a flaw in the metal surface the detection winding voltages are unbalanced, and the unbalance is detected by the voltage measuring instrument. The insulating holder is provided with a profile which conforms to that of a prominent feature of the test piece to facilitate movement of the probe along the feature, typically an edge or a corner. 9 figs.

Watjen, J.P.

1987-06-23T23:59:59.000Z

429

Eddy current probe and method for flaw detection in metals  

DOE Patents (OSTI)

A flaw detecting system is shown which includes a probe having a pair of ferrite cores with in-line gaps in close proximity to each other. An insulating, non-magnetic, non-conducting holder fills the gaps and supports the ferrite cores in a manner such that the cores form a generally V-shape. Each core is provided with an excitation winding and a detection winding. The excitation windings are connected in series or parallel with an rf port for connection thereof to a radio frequency source. The detection windings, which are differentially wound, are connected in series circuit to a detector port for connection to a voltage measuring instrument. The ferrite cores at the in-line gaps directly engage the metal surface of a test piece, and the probe is scanned along the test piece. In the presence of a flaw in the metal surface the detection winding voltages are unbalanced, and the unbalance is detected by the voltage measuring instrument. The insulating holder is provided with a profile which conforms to that of a prominent feature of the test piece to facilitate movement of the probe along the feature, typically an edge or a corner.

Watjen, John P. (Sunnyvale, CA)

1987-06-23T23:59:59.000Z

430

Nonlocal probes of thermalization in holographic quenches with spectral methods  

E-Print Network (OSTI)

We describe the application of pseudo-spectral methods to problems of holographic thermal quenches of relevant couplings in strongly coupled gauge theories. We focus on quenches of a fermionic mass term in a strongly coupled N=4 supersymmetric Yang-Mills plasma, and the subsequent equilibration of the system. From the dual gravitational perspective, we study gravitational collapse of a massive scalar field in asymptotically anti-de-Sitter geometry with a prescribed boundary condition for its non-normalizable mode. Access to the full background geometry of the gravitational collapse allows for the study of nonlocal probes of the thermalization process. We discuss the evolution of the apparent and the event horizons, the two-point correlation functions of operators of large conformal dimensions, and the evolution of the entanglement entropy of the system. We compare the thermalization process from the viewpoint of local (the one-point) correlation functions and these nonlocal probes, finding that the thermalization time as measured by the probes is length dependent, and can exceed that of the one-point function. We further discuss how the different energy scales of the problem contribute to its thermalization.

Alex Buchel; Robert C. Myers; Anton van Niekerk

2014-10-22T23:59:59.000Z

431

Guarded capacitance probes for measuring particle concentration and flow  

DOE Patents (OSTI)

Guarded capacitance probe structures are constructed with guard electrodes surrounding one or more sensor electrodes and ground electrodes or grounded surfaces surrounding the guard electrodes. In a one sensor embodiment, the probe utilizes an apertured sensor electrode and the guard electrode both surrounds the sensor electrode and fills the aperture. This embodiment is particularly useful for measuring particle concentration in a fluid suspension contained within a vessel or pipe. The portion of the guard electrode within the aperture of the sensor electrode prevents electric field lines from emanating from the sensor electrode into the fluid suspension and toward infinity. A two sensor embodiment of the probe is useful for measuring flow velocities of fluid suspensions through cross correlation of the outputs generated by each sensor. The relative dimensions of the guard and sensor electrodes are selected to provide the most accurate measurements by confining the electric lines emanating from the sensor electrode or electrodes and terminating on the surrounding grounded surfaces to a small measurement volume of the fluid suspension near the vessel or pipe wall.

Louge, Michel Y. (Ithaca, NY)

1996-01-01T23:59:59.000Z

432

Guarded capacitance probes for measuring particle concentration and flow  

DOE Patents (OSTI)

Guarded capacitance probe structures are constructed with guard electrodes surrounding one or more sensor electrodes and ground electrodes or grounded surfaces surrounding the guard electrodes. In a one sensor embodiment, the probe utilizes an apertured sensor electrode and the guard electrode both surrounds the sensor electrode and fills the aperture. This embodiment is particularly useful for measuring particle concentration in a fluid suspension contained within a vessel or pipe. The portion of the guard electrode within the aperture of the sensor electrode prevents electric field lines from emanating from the sensor electrode into the fluid suspension and toward infinity. A two sensor embodiment of the probe is useful for measuring flow velocities of fluid suspensions through cross correlation of the outputs generated by each sensor. The relative dimensions of the guard and sensor electrodes are selected to provide the most accurate measurements by confining the electric lines emanating from the sensor electrode or electrodes and terminating on the surrounding grounded surfaces to a small measurement volume of the fluid suspension near the vessel or pipe wall.

Louge, Michel Y. (Ithaca, NY)

1995-01-01T23:59:59.000Z

433

A lander mission to probe subglacial water on Saturn's moon enceladus for life  

Science Journals Connector (OSTI)

Abstract The plumes discovered by the Cassini mission emanating from the south pole of Saturn's moon Enceladus and the unique chemistry found in them have fueled speculations that Enceladus may harbor life. The presumed aquiferous fractures from which the plumes emanate would make a prime target in the search for extraterrestrial life and would be more easily accessible than the moon's subglacial ocean. A lander mission that is equipped with a subsurface ice melting probe will be most suitable to assess the existence of life on Enceladus. A lander would have to land at a safe distance away from a plume source and melt its way to the inner wall of the fracture to analyze the plume subsurface liquids before potential biosignatures are degraded or destroyed by exposure to the vacuum of space. A possible approach for the in situ detection of biosignatures in such samples, can be based on the hypothesis of universal evolutionary convergence, meaning that the independent and repeated emergence of life and certain adaptive traits is wide-spread throughout the cosmos. We thus present a hypothetical evolutionary trajectory leading towards the emergence of methanogenic chemoautotrophic microorganisms as the baseline for putative biological complexity on Enceladus. To detect their presence, several instruments are proposed that may be taken aboard a future subglacial melting probe. The Enceladus Explorer (EnEx) project funded by the German Space Administration (DLR), aims to develop a terrestrial navigation system for a subglacial research probe and eventually test it under realistic conditions in Antarctica using the EnEx-IceMole, a novel maneuverable subsurface ice melting probe for clean sampling and in situ analysis of ice and subglacial liquids. As part of the EnEx project, an initial concept study is foreseen for a lander mission to Enceladus to deploy the IceMole near one of the active water plumes on the moon's South-Polar Terrain, where it will search for signatures of life. The general mission concept is to place the Lander at a safe distance from an active plume. The IceMole would then be deployed to melt its way through the ice crust to an aquiferous fracture at a depth of 100m or more for an in situ examination for the presence of microorganisms. The driving requirement for the mission is the high energy demand by the IceMole to melt through the cold Enceladan ices. This requirement is met by a nuclear reactor providing 5kW of electrical power. The nuclear reactor and the IceMole are placed on a pallet lander platform. An Orbiter element is also foreseen, with the main function of acting as a communications relay between the Lander and Earth. After launch, the Lander and Orbiter will perform the interplanetary transfer to Saturn together, using the on-board nuclear reactor to power electric thrusters. After Saturn orbit insertion, the combined spacecraft will continue using nuclear electric propulsion to reach the orbit of Enceladus. After orbit insertion at Enceladus, the Orbiter will perform a detailed reconnaissance of the South-Polar Terrain. At the end of the reconnaissance phase, the Lander will separate from the Orbiter and an autonomously guided landing sequence will place it near one of the active vapor plumes. Once landed, the IceMole will be deployed and start melting through the ice, while navigating around hazards and towards a target subglacial aquiferous fracture. An initial estimation of the mission's cost is given, as well as recommendations on the further development of enabling technologies. The planetary protection challenges posed by such a mission are also addressed.

Konstantinos Konstantinidis; Claudio Flores Martinez; Bernd Dachwald; Andreas Ohndorf; Paul Dykta; Pascal Bowitz; Martin Rudolph; Ilya Digel; Julia Kowalski; Konstantin Voigt; Roger Frstner

2014-01-01T23:59:59.000Z

434

Quenching methods for background reduction in luminescence-based probe-target binding assays  

DOE Patents (OSTI)

Background luminescence is reduced from a solution containing unbound luminescent probes, each having a first molecule that attaches to a target molecule and having an attached luminescent moiety, and luminescent probe/target adducts. Quenching capture reagent molecules are formed that are capable of forming an adduct with the unbound luminescent probes and having an attached quencher material effective to quench luminescence of the luminescent moiety. The quencher material of the capture reagent molecules is added to a solution of the luminescent probe/target adducts and binds in a proximity to the luminescent moiety of the unbound luminescent probes to quench luminescence from the luminescent moiety when the luminescent moiety is exposed to exciting illumination. The quencher capture reagent does not bind to probe molecules that are bound to target molecules and the probe/target adduct emission is not quenched.

Cai, Hong (Los Alamos, NM); Goodwin, Peter M (Los Alamos, NM); Keller, Richard A. (Los Alamos, NM); Nolan, Rhiannon L. (Santa Fe, NM)

2007-04-10T23:59:59.000Z

435

Chloroplast symbiosis: organization and expression of chloroplast genes and maintenance of chloroplast activity in a foreign host  

E-Print Network (OSTI)

blotting with a V. litorea intergenic transcribed spacer (ITS) probe disproved the presence of any whole algal nuclei or nucleomorph in the host sea slug. This suggested the maintenance of algal chloroplast activity may be due to the high autonomy...

Li, Wei-Ye

2012-06-07T23:59:59.000Z

436

Activity-based probes for rhomboid proteases discovered in a mass spectrometry-based assay  

Science Journals Connector (OSTI)

...detection tag, a spacer, and a warhead. The warhead covalently binds to the target...the signal intensities from the intact substrate and the cleavage product...mechanism-based inhibitors to be used as warheads for ABPs, we focused on the compounds...

Oliver Vosyka; Kutti R. Vinothkumar; Eliane V. Wolf; Arwin J. Brouwer; Rob M. J. Liskamp; Steven H. L. Verhelst

2013-01-01T23:59:59.000Z

437

Feeding and feedback in the active nucleus of Mrk 1157 probed with Gemini NIFS  

E-Print Network (OSTI)

We have mapped the stellar and gaseous kinematics, as well as the emission-line flux distributions and ratios, from the inner 450pc radius of Mrk1157, using 2D near-IR spectra obtained with the Gemini NIFS at a spatial resolution of 35pc. The stellar velocity field shows a rotation pattern, with a discrete S-shaped zero velocity curve. The presence of a bar is also supported by the residual map between the observed rotation field and a model of circular orbits in a Plummer potential. The stellar velocity dispersion map presents a partial ring of low-sigma values (50-60km/s) at 250pc from the nucleus surrounded by higher sigma values from the galaxy bulge, originated in kinematically colder regions with recent star formation. The velocity dispersion of the bulge (100km/s) implies in a black hole mass of 8.3x10^6M_Sun. Emission-line flux distributions are most extended along PA=27/153deg, reaching at least 450pc from the nucleus and following the orientation observed in previous optical emission-line [OIII] ima...

Riffel, Rogemar A

2011-01-01T23:59:59.000Z

438

Assessment of the 296-S-21 Stack Sampling Probe Location  

SciTech Connect

Tests were performed to assess the suitability of the location of the air sampling probe on the 296-S-21 stack according to the criteria of ANSI N13.1-1999, Sampling and Monitoring Releases of Airborne Radioactive Substances from the Stacks and Ducts of Nuclear Facilities. Pacific Northwest National Laboratory conducted most tests on a 3.67:1 scale model of the stack. CH2MHill also performed some limited confirmatory tests on the actual stack. The tests assessed the capability of the air-monitoring probe to extract a sample representative of the effluent stream. The tests were conducted for the practical combinations of operating fans and addressed: (1) Angular Flow--The purpose is to determine whether the velocity vector is aligned with the sampling nozzle. The average yaw angle relative to the nozzle axis should not be more than 20. The measured values ranged from 5 to 11 degrees on the scale model and 10 to 12 degrees on the actual stack. (2) Uniform Air Velocity--The gas momentum across the stack cross section where the sample is extracted should be well mixed or uniform. The uniformity is expressed as the variability of the measurements about the mean, the coefficient of variance (COV). The lower the COV value, the more uniform the velocity. The acceptance criterion is that the COV of the air velocity must be ?20% across the center two-thirds of the area of the stack. At the location simulating the sampling probe, the measured values ranged form 4 to 11%, which are within the criterion. To confirm the validity of the scale model results, air velocity uniformity measurements were made both on the actual stack and on the scale model at the test ports 1.5 stack diameters upstream of the sampling probe. The results ranged from 6 to 8% COV on the actual stack and 10 to 13% COV on the scale model. The average difference for the eight runs was 4.8% COV, which is within the validation criterion. The fact that the scale model results were slightly higher than the actual stack suggests that the other test results on the scale model are conservative relative to the actual stack. (3) Uniform Concentration of Tracer Gases--A uniform contaminant concentration in the sampling plane enables the extraction of samples that represent the true concentration. This was first tested using a tracer gas to represent gaseous effluents. The fan is a good mixer, so injecting the tracer downstream of the fans provides worst-case results. The acceptance criteria are that (1) the COV of the measured tracer gas concentration is ?20% across the center two-thirds of the sampling plane and (2) at no point in the sampling plane does the concentration vary from the mean by >30%. The results on the scale model at the point simulating the sampling probe ranged from 0.3 to 6 %COV, and the maximum single point deviation from the mean was -10%. (4) Uniform Concentration of Tracer Particles--Uniformity in contaminant concentration at the sampling probe was further demonstrated using tracer particles large enough to exhibit inertial effects. Particles of 10-?m aerodynamic diameter were used. The acceptance criterion is that the COV of particle concentration is ?20% across the center two-thirds of the sampling plane. The scale model results ranged form 2 to 9%. Based on these tests, the location of the air sampling probe on the 296-S-21 stack meets the requirements of the ANSI/HPS N13.1-1999 standard.

Glissmeyer, John A.

2006-09-08T23:59:59.000Z

439

Removing the cold probe from the 500 or 600 Hit STOP from the CryoBay Monitor Software. If the probe is already warm  

E-Print Network (OSTI)

. If the probe is already warm the first few steps can be skipped, but for the 500 make sure the power is off off the power switch on the ion pump power supply located on top of the cryobay. This is critical that we just slackened inserts into the side arm of the probe over a foot. To remove it: o Rotate

Oliver, Douglas L.

440

1Electricity from Sunlight: The Van Allen Probes Solar Panels NASA's twin Van Allen Probes spacecraft will be launched in 2012. The  

E-Print Network (OSTI)

1Electricity from Sunlight: The Van Allen Probes Solar Panels NASA's twin Van Allen Probes of the surrounding four solar panel `wings' that provide power to the spacecraft instruments. The small blue rectangles within each of the four solar panels show the location of the solar cells used to power

Note: This page contains sample records for the topic "activity 2-m probe" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

NANO FOUNTAIN PROBE AIDS DEVELOPMENT OF NEW THERAPEUTICS Horacio D. Espinosa, Department of Mechanical Engineering, Northwestern University  

E-Print Network (OSTI)

NANO FOUNTAIN PROBE AIDS DEVELOPMENT OF NEW THERAPEUTICS Horacio D. Espinosa, Department a novel nanoscale fluid delivery probe, called the Nano Fountain Probe, which enables studies to a dispensing tip. The Nano Fountain Probe has proven capable of delivering a variety of functional materials

Shull, Kenneth R.

442

NOAA ARL Monthly Activity Report Bruce B. Hicks, Director  

E-Print Network (OSTI)

. Inter-agency Nuclear Safety Review Panel (INSRP) Convened 4. Wildfire Smoke Dispersion 5. Trajectory. New York City Urban Dispersion Program 18. Extreme Turbulence (ET) Probe 19. Smart Balloon 20-evaluate this assumption. (S. Brooks) 3. Inter-agency Nuclear Safety Review Panel (INSRP) Convened. INSRP is the activity

443

The technology development status of the Solar Probe  

Science Journals Connector (OSTI)

The continuing development of new spacecraft technologies promises to enable the Solar Probe to be the first mission to travel in the atmosphere or corona of the sun. The most significant technology challenge is the thermal shield that would protect the spacecraft from the flux of 3000 suns (400? W/cm ? ** ??2) at the perihelion radius of 4 solar radii while allowing the spacecraft subsystems to operate at near room temperature. One of the key design issues of the shield is not simply surviving but operating at temperatures well above 2000K while minimizing the sublimation from the shield surface. Excessive sublimation could cause interference with the plasma science experiments that are fundamental to the Solar Probes scientific objectives of measuring the birth and development of the solar wind. The selection of a special type of carbon-carbon as the shield material seems assured at this time. Tests of this material in late 1996 were designed to confirm its optical surface properties and mass loss characteristics and the results are encouraging. The shield concept incorporates dual functions as a thermal shield and as a large high gain antenna. This latter function is important because of the difficult communications environment encountered within the solar corona. A high temperature feed concept under development is discussed here. The NASA guideline requiring non-nuclear power sources has introduced the requirement for alternative power sources. The current concept uses high temperature photovoltaic arrays as well as high energy low mass batteries to provide power during the perihelion phase of the mission. Testing of photovoltaic cells at high sun angles was completed in 1996 and the results are presented here. Finally a miniaturized science payload which relies on the latest advances in analyzer and detector technologies will be developed to minimize mass and power requirements.

James E. Randolph; Juan A. Ayon; Geoffrey D. Harvey; William A. Imbriale; Robert N. Miyake; Robert L. Mueller; Bill J. Nesmith; P. Richard Turner; Ray B. Dirling Jr.; Jeffrey C. Preble; Suraj Rawal; Wallace L. Vaughn

1997-01-01T23:59:59.000Z

444

Using electrical resistance probes for moisture determination in switchgrass windrows  

SciTech Connect

Determining moisture levels in windrowed biomass is important for both forage producers and researchers. Energy crops such as switchgrass have been troublesome when using the standard methods set for electrical resistance meters. The objectives of this study were to i) develop the methodologies needed to measure MC in switchgrass using electrical resistance meters, ii) to determine the effects of pressure and probe orientation on MC measurement and iii) to generate MC calibration equations for electrical resistance meters using switchgrass in the senescence growth stage. Two meters (Meter 1, Farmex HT-PRO; Meter 2, Delmhorst F-2000) were selected based on commercial availability. A forage compression apparatus was designed and constructed with on-farm materials and methods to provide a simple system of applying pressure achievable by any forage producer or researcher in the field. Two trials were performed to test four levels of moisture contents (10, 20, 30, and 40%), five pressures (0, 1.68, 3.11, 4.55, 6.22 kN/m 2; 0, 35, 65, 95, 130 lb/ft 2), and two probe orientations (axial and transverse) in a 4x5x2 factorial design. Results indicated that meter accuracy increased as pressure increased. Regression models accounted for 91% and 81% of the variation for Meter 1 and Meter 2 at a pressure of 4.55 kN/m 2 (95 lb/ft 2) and a transverse probe orientation. Calibration equations were developed for both meters to improve moisture measurement accuracy for farmers and researchers in the field.

Chesser Jr., G. D.; Davis, J. D.; Purswell, J. L.; Lemus, R.

2011-08-01T23:59:59.000Z

445

Absolute Measurement of Femtosecond PumpProbe Signal Strength  

Science Journals Connector (OSTI)

Without the pump, ??(R,?r, f,T) = 0, and exponential Beers law attenuation of the probe fluence through the length of the sample is recovered:(10)Since the excited state levels will have initially pumped populations that decay exponentially with Z due to pump attenuation, ?? will be a sum of terms that decay exponentially with Z. ... In this process, the kinetic energy of a hot electron (or a hot hole) does not dissipate as heat but is, instead, transferred via the Coulomb interaction to the valence-band electron, exciting it across the energy gap. ...

Byungmoon Cho; Vivek Tiwari; Robert J. Hill; William K. Peters; Trevor L. Courtney; Austin P. Spencer; David M. Jonas

2013-05-28T23:59:59.000Z

446

Top quarks as a probe for heavy new physics  

E-Print Network (OSTI)

The heaviest fermion is expected to couple strongly to new physics and appears therefore as a natural probe in many BSM scenarios. Moreover, top physics has now entered in a precision era thanks to the huge amount of top quarks produced at hadron colliders, advanced experimental methods and accurate theoretical predictions. In this talk, we will used effective field theory to search for heavy new physics in a model independent way. This method can also be used to quantify the room left for new physics if no deviation from the SM is found.

Celine Degrande

2014-07-11T23:59:59.000Z

447

Intermediate energy semileptonic probes of the hadronic neutral current  

SciTech Connect

The present status and future prospects of intermediate-energy semileptonic neutral current studies are reviewed. Possibilities for using parity-violating electron scattering from nucleons and nuclei to study hadron structure and nuclear dynamics are emphasized, with particular attention paid to probes of strangeness content in the nucleon. Connections are drawn between such studies and tests of the electroweak gauge theory using electron or neutrino scattering. Outstanding theoretical issues in the interpretation of semileptonic neutral current measurements are highlighted and the prospects for undertaking parity-violating electron or neutrino scattering experiments in the near future are surveyed.

Musolf, M.J. [Massachusetts Inst. of Tech., Cambridge, MA (United States)]|[Old Dominion Univ., Norfolk, VA (United States). Dept. of Physics]|[CEBAF Theory Group, Newport News, VA (United States); Donnelly, T.W. [Massachusetts Inst. of Tech., Cambridge, MA (United States); Dubach, J. [Massachusetts Univ., Amherst, MA (United States). Dept. of Physics and Astronomy; Pollock, S.J. [Washington Univ., Seattle, WA (United States). Inst. for Nuclear Theory]|[Nationaal Inst. voor Kernfysica en Hoge-Energiefysica (NIKHEF), Amsterdam (Netherlands). Sectie K; Kowalski, S. [Massachusetts Inst. of Tech., Cambridge, MA (United States); Beise, E.J. [California Inst. of Tech., Pasadena, CA (United States). W.K. Kellogg Radiation Lab.]|[Maryland Univ., College Park, MD (United States). Dept. of Physics

1993-06-01T23:59:59.000Z

448

Probing CP violation with the deuteron electric dipole moment  

Science Journals Connector (OSTI)

We present an analysis of the electric dipole moment (EDM) of the deuteron as induced by CP-violating operators of dimension 4, 5 and 6 including ?QCD, the EDMs and color EDMs of quarks, four-quark interactions and the Weinberg operator. We demonstrate that the precision goal of the EDM Collaborations proposal to search for the deuteron EDM, (13)10-27e cm, will provide an improvement in sensitivity to these sources of one to two orders of magnitude relative to the existing bounds. We consider in detail the level to which CP-odd phases can be probed within the minimal supersymmetric standard model.

Oleg Lebedev; Keith A. Olive; Maxim Pospelov; Adam Ritz

2004-07-22T23:59:59.000Z

449

Probing CP Violation with the Deuteron Electric Dipole Moment  

E-Print Network (OSTI)

We present an analysis of the electric dipole moment (EDM) of the deuteron as induced by CP-violating operators of dimension 4, 5 and 6 including theta QCD, the EDMs and color EDMs of quarks, four-quark interactions and the Weinberg operator. We demonstrate that the precision goal of the EDM Collaboration's proposal to search for the deuteron EDM, (1-3)\\times 10^{-27} e cm, will provide an improvement in sensitivity to these sources of one-two orders of magnitude relative to the existing bounds. We consider in detail the level to which CP-odd phases can be probed within the MSSM.

Lebedev, Oleg; Pospelov, Maxim; Ritz, Adam; Lebedev, Oleg; Olive, Keith A.; Pospelov, Maxim; Ritz, Adam

2004-01-01T23:59:59.000Z

450

Probing CP Violation with the Deuteron Electric Dipole Moment  

E-Print Network (OSTI)

We present an analysis of the electric dipole moment (EDM) of the deuteron as induced by CP-violating operators of dimension 4, 5 and 6 including theta QCD, the EDMs and color EDMs of quarks, four-quark interactions and the Weinberg operator. We demonstrate that the precision goal of the EDM Collaboration's proposal to search for the deuteron EDM, (1-3)\\times 10^{-27} e cm, will provide an improvement in sensitivity to these sources of one-two orders of magnitude relative to the existing bounds. We consider in detail the level to which CP-odd phases can be probed within the MSSM.

Oleg Lebedev; Keith A. Olive; Maxim Pospelov; Adam Ritz

2004-02-02T23:59:59.000Z

451

Toroid cavities as NMR detectors in high pressure probes  

SciTech Connect

A cylindrical toroid cavity has been developed for application as an NMR detector for high sensitivity and high resolution spectroscopy in metal vessel probes. Those probes are used for in situ investigations at high temperature and pressure. Since the transmitted r.f. field is completely confined within the torus, the cavity can be placed inside the pressurized system without magnetic coupling to the metal vessel. Resonance frequencies up to 400 MHz make the toroid cavity detector especially suited for use in {sup 1}H and {sup 19}F spectroscopy. Typically achieved static {sup 1}H linewidths, measured on CHCl{sub 3} using cavities in Be-Cu pressure vessels, are 2.0 Hz. On the basis of theoretical considerations that include the radial dependence of the r.f. field within cylindrical or circular toroid detectors, equations were evolved to predict the signal intensity as a function of the pulse width. The equations precisely describe the deviations from the sinusoidal approximation, which is generally used for signal intensities derived from Helmholtz or solenoid coils.

Woelk, K.; Rathke, J.W.; Klingler, R.J.

1993-03-01T23:59:59.000Z

452

Method for producing labeled single-stranded nucleic acid probes  

DOE Patents (OSTI)

Disclosed is a method for the introduction of unidirectional deletions in a cloned DNA segment. More specifically, the method comprises providing a recombinant DNA construct comprising a DNA segment of interest inserted in a cloning vector, the cloning vector having an f1 endonuclease recognition sequence adjacent to the insertion site of the DNA segment of interest. The recombinant DNA construct is then contacted with the protein pII encoded by gene II of phage f1 thereby generating a single-stranded nick. The nicked DNA is then contacted with E. coli Exonuclease III thereby expanding the single-stranded nick into a single-stranded gap. The single-stranded gapped DNA is then contacted with a single-strand-specific endonuclease thereby producing a linearized DNA molecule containing a double-stranded deletion corresponding in size to the single-stranded gap. The DNA treated in this manner is then incubated with DNA ligase under conditions appropriate for ligation. Also disclosed is a method for producing single-stranded DNA probes. In this embodiment, single-stranded gapped DNA, produced as described above, is contacted with a DNA polymerase in the presence of labeled nucleotides to fill in the gap. This DNA is then linearized by digestion with a restriction enzyme which cuts outside the DNA segment of interest. The product of this digestion is then denatured to produce a labeled single-stranded nucleic acid probe.

Dunn, John J. (Bellport, NY); Quesada, Mark A. (Middle Island, NY); Randesi, Matthew (Upton, NY)

1999-10-19T23:59:59.000Z

453

Monitoring power plant fireside corrosion using corrosion probes  

SciTech Connect

The ability to monitor the corrosion degradation of key components in fossil fuel power plants is of utmost importance for Futuregen and ultra-supercritical power plants. Fireside corrosion occurs in the high temperature sections of energy production facilities due to a number of factors: ash deposition, coal composition, thermal gradients, and low NOx conditions, among others. Problems occur when equipment designed for either oxidizing or reducing conditions is exposed to alternating oxidizing and reducing conditions. This can happen especially near the burners. The use of low NOx burners is becoming more commonplace and can produce reducing environments that accelerate corrosion. One method of addressing corrosion of these surfaces is the use of corrosion probes to monitor when process changes cause corrosive conditions. In such a case, corrosion rate could become a process control variable that directs the operation of a coal combustion or coal gasification system. Alternatively, corrosion probes could be used to provide an indication of total metal damage and thus a tool to schedule planned maintenance outages.

Covino, Bernard S., Jr.; Bullard, Sophie J.; Cramer, Stephen D.; Holcomb, Gordon R.; Ziomek-Moroz, M.

2005-01-01T23:59:59.000Z

454

E-Print Network 3.0 - acceleration probe snap Sample Search Results  

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

distance and primary CMB anisotropy measurements provide powerful probes of the dark energy... such as SPTpol or QUIET, can remove the curvature degeneracy at a level sufficient...

455

Novel Ways to Probe the Universe with Gamma-Ray Bursts and Quasars  

Science Journals Connector (OSTI)

I consider novel ways by which Gamma-Ray Bursts (GRBs) and quasars can be used... $\\alpha$ radiation which probes the neutral in...

Abraham Loeb

2002-01-01T23:59:59.000Z

456

E-Print Network 3.0 - atom probe tomography Sample Search Results  

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

4 ATOM-PROBE TOMOGRAPHIC STUDY OF THE THREE-DIMENSIONAL STRUCTURE OF PRESOLAR SILICON CARBIDE AND NANODIAMONDS AT ATOMIC RESOLUTION. Summary: tomographic studies of presolar...

457

E-Print Network 3.0 - analytical probe techniques Sample Search...  

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

Engineering 39 Chemical proteomics and its application to drug discovery Douglas A Jeffery Summary: probe also holds much promise 26,27 . Recently, techniques have been...

458

REVIEW OF SCIENTIFIC INSTRUMENTS 82, 033510 (2011) Calibrated cylindrical Mach probe in a plasma wind tunnel  

E-Print Network (OSTI)

of a simple "Gundestrup- type" Mach probe5,7,8 used in the Swarthmore Spheromak Experiment (SSX).9 An accurate

Brown, Michael R.

459

HIGH TEMPERATURE CONDUCTIVITY PROBE FOR MONITORING CONTAMINATION LEVELS IN POWER PLANT BOILER WATER.  

E-Print Network (OSTI)

??A high temperature/high pressure flow through probe was designed to measure high temperature electrical conductivity of aqueous (aq) dilute electrolyte solutions, an application which can (more)

Hipple, Sarah

2008-01-01T23:59:59.000Z

460

EGR Spatial Uniformity & Cylinder-Resolved Transients-Measurements using an Absorption Spectroscopy Probe  

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

This poster describes development and application of an EGR probe for assessing steady-state spatial uniformity and cylinder-resolved EGR dynamics.

Note: This page contains sample records for the topic "activity 2-m probe" 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

Optical Probing of the Ultrafast Charge Carrier Motion Dynamics in Organic Solar Cells  

Science Journals Connector (OSTI)

We demonstrate application of the electric field-induced second harmonic generation as a probe of ultrafast electric field dynamics in thin molecular film, used for investigation of...

Gulbinas, Vidmantas

462

Quantitative Evaluation of NIRS Probes and Imaging Protocol for Traumatic Brain Injury (TBI)  

Science Journals Connector (OSTI)

Realistic head models are used to assess the information content in regions of the brain relevant to monitoring traumatic brain injury patients with commercial NIRS probes,...

Clancy, Michael; Belli, Anthony; Davies, David; Lucas, Sam; Dehghani, Hamid

463

Light and Fast: Probing Carriers and Vibrations in 1D and 2D...  

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

and mechanical, are simultaneously important. First, we will discuss ultrafast optoelectronic measurements of graphene p-n junctions that probe the fundamental thermal...

464

E-Print Network 3.0 - anisotropy probe wmap Sample Search Results  

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

4 5 > >> 1 Current research themes (Contribution to the IUCAA annual report 2006-2007) Summary: from the Wilkinson Microwave Anisotropy Probe com- bine high angular resolution with...

465

Magnetism at spinel thin film interfaces probed through soft x-ray spectroscopy techniques  

E-Print Network (OSTI)

Magnetism at spinel thin ?lm interfaces probed through softachievable in bulk form. Magnetism at the interface regionand the origin of the magnetism from multiple magnetic

Chopdekar, R.V.

2010-01-01T23:59:59.000Z

466

E-Print Network 3.0 - arrayed metal probes Sample Search Results  

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

probe... in this study. Metallic layers were sandwiched between polyimide layers ... Source: Collection: Biology and Medicine 26 RESONANT TERAHERTZ TRANSMISSION OF PLASMONIC...

467

Mechanically Adjustable Single-Molecule Transistors and Stencil Mask Nanofabrication of High-Resolution Scanning Probes .  

E-Print Network (OSTI)

??This dissertation presents the development of two original experimental techniques to probe nanoscale objects. The first one studies electronic transport in single organic molecule transistors (more)

Champagne, Alexandre

2005-01-01T23:59:59.000Z

468

E-Print Network 3.0 - apfim atom probe Sample Search Results  

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

au n'll, Tome 49, novembre 1988 ATOM PROBE... of nanometers in two transition metal-metalloid amorphous alloys have been investigated by means ... Source: Ecole...

469

E-Print Network 3.0 - apfim atom-probe field Sample Search Results  

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

au n'll, Tome 49, novembre 1988 ATOM PROBE... of nanometers in two transition metal-metalloid amorphous alloys have been ... Source: Ecole Polytechnique, Centre de...

470

Resonant soft x-ray scattering: elemental/chemical specific probe...  

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

Resonant soft x-ray scattering: elementalchemical specific probe of reciprocal space and ordered structure Wednesday, October 15, 2014 - 3:00pm SLAC, Redtail Hawk Conference Room...

471

Solvothermal syntheses of three new one-dimensional ternary selenidostannates: [DBNH][M{sub 1/2}Sn{sub 1/2}Se{sub 2}] (M=Mn, Zn, Hg)  

SciTech Connect

Three new ternary selenidostannates [DBNH][M{sub 1/2}Sn{sub 1/2}Se{sub 2}] (M=Mn (1), Zn (2), Hg (3); DBN=1,5-diazabicyclo[4.3.0]non-5-ene) have been synthesized under solvothermal condition. Single crystal X-ray analyses reveal that compounds 13 crystallize in the tetragonal space group P4{sub 2}/ncm. The structures of 13 feature a similar straight one-dimensional [M{sub 1/2}Sn{sub 1/2}Se{sub 2}]{sub n}{sup n?} chain, which is built up by edge-sharing M{sub 1/2}Sn{sub 1/2}Se{sub 4} tetrahedra. The transition metal ions (e.g. Mn{sup 2+} (1), Zn{sup 2+} (2), Hg{sup 2+} (3)) and Sn{sup 4+} ions are located at the same metal site in a mixed-metal phase with a ratio of 0.5/0.5. The band gaps of compounds 2 (2.42 eV) and 3 (2.46 eV) were calculated from the solid state UVvis diffuse reflectance spectroscopy. - Graphical abstract: Three new one-dimensional ternary selenidostannates, [DBNH][M{sub 1/2}Sn{sub 1/2}Se{sub 2}] (M=Mn (1), Zn (2), Hg (3); DBN =1,5-diazabicyclo[4.3.0]non-5-ene), have been synthesized under solvothermal condition. Highlights: Three new one-dimensional ternary selenidostannates. A mixed-metal phase with a ratio of 0.5/0.5. Heterometallic chalcogenides.

Xiong, Wei-Wei [School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798 (Singapore); Li, Pei-Zhou [Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371 (Singapore); Zhou, Tian-Hua [School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459 (Singapore); Zhao, Yanli [Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371 (Singapore); Xu, Rong [School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637459 (Singapore); Zhang, Qichun, E-mail: qczhang@ntu.edu.sg [School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798 (Singapore)

2013-08-15T23:59:59.000Z

472

Orlistat Is a Novel Inhibitor of Fatty Acid Synthase with Antitumor Activity  

Science Journals Connector (OSTI)

...activity-based probe composed of a FP warhead linked to the fluorophore...effects of Orlistat on FAS in intact cells, we measured the ability...that Orlistat inhibits FAS in intact cells. Orlistat had no effect...FAS). A, FAS activity in intact PC-3 cells was measured with...

Steven J. Kridel; Fumiko Axelrod; Natasha Rozenkrantz; and Jeffrey W. Smith

2004-03-15T23:59:59.000Z

473

Calculations of Nonlinear Wave-Packet Interferometry Signals in the Pump-Probe Limit as Tests for Vibrational Control over Electronic Excitation Transfer  

E-Print Network (OSTI)

The preceding paper describes a strategy for externally influencing the course of short-time electronic excitation transfer (EET) in molecular dimers and observing the process by nonlinear wave-packet interferometry (nl-WPI). Within a sample of isotropically oriented dimers having a specified internal geometry, a vibrational mode internal to the acceptor chromophore can be preferentially driven by electronically nonresonant impulsive stimulated Raman (or resonant infrared) excitation with a short polarized control pulse. A subsequent electronically resonant polarized pump then preferentially excites the donor, and EET ensues. Here we test both the control strategy and its spectroscopic investigation-with some sacrifice of amplitude-level detail-by calculating the pump-probe difference signal. That signal is the limiting case of the control-influenced nl-WPI signal in which the two pulses in the pump pulse-pair coincide, as do the two pulses in the probe pulse-pair. We present calculated pump-probe difference signals for (1) a model excitation-transfer complex in which two equal-energy monomers each support one moderately Franck-Condon active intramolecular vibration; (2) a simplified model of the covalent dimer dithia-anthracenophane, representing its EET dynamics following selective impulsive excitation of the weakly Franck-Condon active anthracene vibration at 385 cm-1; and (3) a model complex featuring moderate electronic-vibrational coupling in which the site energy of the acceptor chromophore is lower than that of the donor.

Jason D. Biggs; Jeffrey A. Cina

2009-10-12T23:59:59.000Z

474

Titan Imagery with Keck AO during and after Probe Entry  

SciTech Connect

We present adaptive optics data from the 10-m W.M. Keck telescope that were taken during the time the Huygens probe descended through Titan's atmosphere, and on the days following touch-down. The spatial resolution of the images is typically {approx}0.04-inch, or {approx}240 km on Titan (60 km/pixel). No probe entry signal was detected at levels exceeding 0.8 {micro}Jy (3-{sigma}) per pixel (0.01-inch), which although within the range of predicted flux levels, cannot constrain any models. We present data on Titan's surface, troposphere and stratosphere during the days following probe entry, when the solar phase angle varied from 0.05{sup o} up to 0.8{sup o}, with the Sun in the West. Contrary to expectation, the data often showed the East side to be brightest. Adding data obtained with Keck and Gemini over the past few years reveals that the East-West asymmetry can be explained by a combination of the solar phase angle effect together with a general preponderance of haze on Titan's East or morning hemisphere. The troposphere was characterized by quiescent weather; only a few small clouds were present near the south pole, at typical altitudes of 30-40 km. While stratospheric haze was prominent over the northern hemisphere, tropospheric haze dominated the south, from the S. pole up to latitudes of {approx} -45{sup o}. An intriguing observation is that obtained at 1.22 {micro}m, which revealed haze in the form of a collar at -60{sup o}, in contrast to the polar haze cap as usually seen. A comparison of narrow band JHK images of Titan's surface with that obtained by Cassini ISS shows a striking resemblance in small-scale features. After a decent attempt to remove the atmosphere from the images, the surface contrast between dark and bright areas may be larger at 2 {micro}m than at 1.6 and 1.3 {micro}m. If true, this could imply that the dark areas on Titan's surface are covered by a coarser grained frost than the bright areas, and/or that there are more absorbers, such as NH{sub 3}/NH{sub 4}SH frost, in these dark areas.

de Pater, I; Adamkovics, M; Bouchez, A H; Brown, M E; Gibbard, S G; Marchis, F; Roe, H G; Schaller, E L; Young, E

2006-02-03T23:59:59.000Z

475

Atom chip microscopy: A novel probe for strongly correlated materials  

SciTech Connect

Improved measurements of strongly correlated systems will enable the predicative design of the next generation of supermaterials. In this program, we are harnessing recent advances in the quantum manipulation of ultracold atomic gases to expand our ability to probe these technologically important materials in heretofore unexplored regions of temperature, resolution, and sensitivity parameter space. We are working to demonstrate the use of atom chips to enable single-shot, large area detection of magnetic flux at the 10^-7 flux quantum level and below. By harnessing the extreme sensitivity of atomic clocks and Bose-Einstein condensates (BECs) to external perturbations, the cryogenic atom chip technology developed here will provide a magnetic flux detection capability that surpasses other techniques---such as scanning SQUIDs---by a factor of 10--1000. We are testing the utility of this technique by using rubidium BECs to image the magnetic fields emanating from charge transport and magnetic domain percolation in strongly correlated materials as they undergo temperature-tuned metal--to--insulator phase transitions. Cryogenic atom chip microscopy introduces three very important features to the toolbox of high-resolution, strongly correlated material microscopy: simultaneous detection of magnetic and electric fields (down to the sub-single electron charge level); no invasive large magnetic fields or gradients; simultaneous micro- and macroscopic spatial resolution; freedom from 1/f flicker noise at low frequencies; and, perhaps most importantly, the complete decoupling of probe and sample temperatures. The first of these features will play an important role in studying the interplay between magnetic and electric domain structure. The last two are crucial for low frequency magnetic noise detection in, e.g., the cuprate pseudogap region and for precision measurements of transport in the high temperature, technologically relevant regime inaccessible to other techniques based on superconducting scanning probes. In periods 1--3 of this grant, which we now close at the University of Illinois at Urbana-Champaign and restart at Stanford University where our new lab is being built, we have demonstrated the ability to rapidly create Rb BECs and trap them within microns of a surface ina cryostat. Period 4 of this grant, to be performed at Stanford, will demonstrate the feasibility of using atom chips with a BEC to image transport features on a cryogenically cooled surface. Successful demonstration, in future funding cycles, will lead directly to the use of system for studies of transport in exotic and technologically relevant materials such as cuprate superconductors and topological insulators.

Lev, Benjamin L

2011-11-03T23:59:59.000Z

476

Filtering Heart Related Activity from Vagus Nerve Recordings in G. de Lannoy1  

E-Print Network (OSTI)

Filtering Heart Related Activity from Vagus Nerve Recordings in Rats G. de Lannoy1 , J. Marin2 , M understanding of such situations. Due to the proximity of the recording site to the heart itself and beating in this field. Due to the proximity of the recording sites to the heart and beating arteries, the vagus nerve

Verleysen, Michel

477

Possibility of using active secondary charge-exchange particle diagnostics for measuring the magnetic field direction in the plasma of a magnetic fusion reactor  

Science Journals Connector (OSTI)

An active particle diagnostic method based on the secondary charge exchange of hydrogen atoms of a probing (diagnostic) beam is proposed for local measurements of the magnetic field direction in the plasma of a t...

A. A. Medvedev; V. S. Strelkov

2006-05-01T23:59:59.000Z

478

Nonlinear ultrafast dynamics of high temperature YBa[subscript 2]Cu[subscript 3]O[subscript 7-?] superconductors probed with THz pump / THz probe spectroscopy  

E-Print Network (OSTI)

High power THz pulses induce near transparency in superconductive YBCO thin films below the critical temperature. THz pump/THz probe measurements reveal a decay of the induced transparency on the time scale of a few picoseconds.

Grady, N. K.

479

Use of gene probes to assess the impact and effectiveness of aerobic in situ bioremediation of TCE  

SciTech Connect

Gene probe hybridization was used to determine distribution and expression of co-metabolic genes at a contaminated site as it underwent in situ methanotrophic bioremediation of trichloroethylene (TCE). The bioremediation strategies tested included a series of air, air:methane, and air:methane:nutrient pulses of the test plot using horizontal injection wells. During the test period, the levels of TCE reduced drastically in almost all test samples. Sediment core samples (n = 367) taken from 0 m (surface)-43 m depth were probed for gene coding for methanotrophic soluble methane monooxygenase (sMMO) and heterotrophic toluene dioxygenase (TOD), which are known to co-metabolize TCE. The same sediment samples were also probed for genes coding for methanol dehydrogenase (MDH) (catalyzing the oxidation of methanol to formaldehyde) to assess specifically changes in methylotrophic bacterial populations in the site. Gene hybridization results showed that the frequency of detection of sMMO genes were stimulated approximately 250% following 1% methane:air (v/v) injection. Subsequent injection of 4% methane:air (v/v) resulted in an 85% decline probably due to nutrient limitations, since addition of nutrients (gaseous nitrogen and phosphorus) thereafter caused an increase in the frequency of detection of sMMO genes. Detection of TOD genes declined during the process, and eventually they were non-detectable by the final treatment, suggesting that methanotrophs displaced the TOD gene containing heterotrophs. Active transcription of sMMO and TOD was evidenced by hybridization to mRNA. These analyses combined with results showing the concomitant decline in TCE concentrations, increases in chloride concentration and increases in methanotroph viable counts, provide multiple lines of evidence that TCE remediation was caused specifically by methanotrophs. Our results suggest that sMMO genes are responsible for most, if not all, of the observed biodegradation of TCE. This study demonstrates that the use of nucleic acid analytical methods provided a gene specific assessment of the effects of in situ treatment technologies.

Hazen, Terry C.; Chakraborty, Romy; Fleming, James M.; Gregory, Ingrid R.; Bowman, John P.; Jimenez, Luis; Zhang, Dai; Pfiffner, Susan M.; Brockman, Fred J.; Sayler, Gary S.

2009-03-15T23:59:59.000Z

480

Active Hydrogen  

Science Journals Connector (OSTI)

Dry hydrogen can be activated in an electric discharge if the pressure and voltage are carefully regulated. Active hydrogen reduces metallic sulphides whose heat of formation is 22 000 cal. or less. The active gas is decomposed by 3 cm of well packed glass wool. A quantitative method is given for the determination of active hydrogen. Less of the active gas is formed in a tube coated with stearic acid or phosphoric acid than when no coating is employed. The decay reaction was found to follow the expression for a unimolecular reaction. The rate of decay appears to be independent of the wall surface. The period of half?life at room temperature and 40 mm pressure is 0.2 sec. approximately. The energy of formation of active hydrogen is approximately 18 000 cal. The energy of activation for the decay of the active constituent is approximately 17 800 cal. The properties of active hydrogen are considered in relation to the properties predicted for H3.

A. C. Grubb; A. B. Van Cleave

1935-01-01T23:59:59.000Z

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481

Microgrid Activities  

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

The Energy Department has a comprehensive portfolio of activities that focuses on the development and implementation of microgrids to further improve reliability and resiliency of the grid, help...

482

Ionizing Radiation Activates AMP-Activated Kinase (AMPK): A Target for Radiosensitization of Human Cancer Cells  

SciTech Connect

Purpose: Adenosine monophosphate (AMP)-activated kinase (AMPK) is a molecular energy sensor regulated by the tumor suppressor LKB1. Starvation and growth factors activate AMPK through the DNA damage sensor ataxia-telangiectasia mutated (ATM). We explored the regulation of AMPK by ionizing radiation (IR) and its role as a target for radiosensitization of human cancer cells. Methods and Materials: Lung, prostate, and breast cancer cells were treated with IR (2-8 Gy) after incubation with either ATM or AMPK inhibitors or the AMPK activator metformin. Then, cells were subjected to either lysis and immunoblotting, immunofluorescence microscopy, clonogenic survival assays, or cell cycle analysis. Results: IR induced a robust phosphorylation and activation of AMPK in all tumor cells, independent of LKB1. IR activated AMPK first in the nucleus, and this extended later into cytoplasm. The ATM inhibitor KU-55933 blocked IR activation of AMPK. AMPK inhibition with Compound C or anti-AMPK {alpha} subunit small interfering RNA (siRNA) blocked IR induction of the cell cycle regulators p53 and p21{sup waf/cip} as well as the IR-induced G2/M arrest. Compound C caused resistance to IR, increasing the surviving fraction after 2 Gy, but the anti-diabetic drug metformin enhanced IR activation of AMPK and lowered the surviving fraction after 2 Gy further. Conclusions: We provide evidence that IR activates AMPK in human cancer cells in an LKB1-independent manner, leading to induction of p21{sup waf/cip} and regulation of the cell cycle and survival. AMPK appears to (1) participate in an ATM-AMPK-p21{sup waf/cip} pathway, (2) be involved in regulation of the IR-induced G2/M checkpoint, and (3) may be targeted by metformin to enhance IR responses.

Sanli, Toran; Rashid, Ayesha; Liu Caiqiong [Department of Oncology, Juravinski Cancer Center and McMaster University, Hamilton, Ontario (Canada)

2010-09-01T23:59:59.000Z

483

Active Cores in Deep Fields  

E-Print Network (OSTI)

Deep field observations are an essential tool to probe the cosmological evolution of galaxies. In this context, X-ray deep fields provide information about some of the most energetic cosmological objects: active galactic nuclei (AGN). Astronomers are interested in detecting sufficient numbers of AGN to probe the accretion history at high redshift. This talk gives an overview of the knowledge resulting from a highly complete soft X-ray selected sample collected with ROSAT, XMM-Newton and Chandra deep fields. The principal outcome based on X-ray luminosity functions and space density evolution studies is that low-luminosity AGN evolve in a dramatically different way from high-luminosity AGN: The most luminous quasars perform at significantly earlier cosmic times and are most numerous in a unit volume at cosmological redshift z~2. In contrast, low-luminosity AGN evolve later and their space density peaks at z~0.7. This finding is also interpreted as an anti-hierarchical growth of supermassive black holes in the Universe. Comparing this with star formation rate history studies one concludes that supermassive black holes enter the cosmic stage before the bulk of the first stars. Therefore, first solutions of the so-called hen-egg problem are suggested. Finally, status developments and expectations of ongoing and future extended observations such as the XMM-COSMOS project are highlighted.

G. Hasinger; A. Mueller

2005-10-14T23:59:59.000Z

484

Quadrupole Magnetic Center Definition Using the Hall Probe Measurement Technique  

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

Quadrupole Magnetic Center Definition Quadrupole Magnetic Center Definition Using the Hall Probe Measurement Technique Isaac Vasserman Experimental Facility Division, Advanced Photon Source, Argonne National Laboratory 1. Introduction The linac coherent light source [LCLS] project [1] requires 5 µm straightness of the particle beam trajectory to achieve the desired goal of x-ray multiplication. The main source of beam trajectory distortion is misalignment of quadrupoles. The LCLS project will use a beam-based alignment technique to align the quadrupoles to the needed accuracy. An initial accuracy of the quadrupole alignment not worse than 50 µm is required [2]. A different technique could be used for this purpose. It would be though quite desirable to avoid using an additional magnetic measurement technique and to use

485

A Better Way to Probe Biological Polymorphs | Advanced Photon Source  

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

Composite Battery Boost Composite Battery Boost Water-Like Properties of Soft Nanoparticle Suspensions Real-Time Capture of Intermediates in Enzymatic Reactions A New Multilayer-Based Grating for Hard X-ray Grating Interferometry The Most Detailed Picture Yet of a Key AIDS Protein Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed A Better Way to Probe Biological Polymorphs December 3, 2013 Bookmark and Share The byssus of the bivalve Anomia simplex provides the anchor between mussel and substrate. Panel A shows a schematic cross-section of the animal (left) and (right) a three-dimensional micro-computed-tomography rendering of the mineralized byssus. The red lines mark three layers that were investigated

486

Scanning Hall probe microscopy of a diluted magnetic semiconductor  

SciTech Connect

We have measured the micromagnetic properties of a diluted magnetic semiconductor as a function of temperature and applied field with a scanning Hall probe microscope built in our laboratory. The design philosophy for this microscope and some details are described. The samples analyzed in this work are Ga{sub 0.94}Mn{sub 0.06}As films grown by molecular beam epitaxy. We find that the magnetic domains are 2-4 mum wide and fairly stable with temperature. Magnetic clusters are observed above T{sub C}, which we ascribe to MnAs defects too small and sparse to be detected by a superconducting quantum interference device magnetometer.

Kweon, Seongsoo [Materials Science and Engineering, University of Texas at Austin, Austin, Texas 78712 (United States); Samarth, Nitin [Physics Department, Penn State University, University Park, Pennsylvania 16802 (United States); Lozanne, Alex de [Materials Science and Engineering, University of Texas at Austin, Austin, Texas 78712 (United States); Department of Physics, University of Texas at Austin, Austin, Texas 78712 (United States)

2009-05-01T23:59:59.000Z

487

Radio-frequency probes of Antarctic ice at South Pole  

E-Print Network (OSTI)

System Sciences O p e n A cce ss Discussions Radio-frequency probes of Antarctic ice at South Pole D. Besson1 and I. Kravchenko2 1University of Kansas, Department of Physics and Astronomy, Lawrence, KS 66045-7582, USA 2University of Nebraska Lincoln... to successive waveforms. Each 0.5 meter division horizontally corresponds to approximately 5 ns. -20 -10 0 10 20 Rx v ol ta ge ( V, a ft er s ca li ng ; of fs e Time (ns, relative) 6 us echo (Vx1) 9.6 us echo (Vx1.3) 13.9 us echo (Vx3.5) 17.2 us echo (Vx10...

Besson, David Zeke; Kravchenko, I.

2013-05-16T23:59:59.000Z

488

Will multiple probes of dark energy find modified gravity?  

SciTech Connect

One of the most pressing issues in cosmology is whether general relativity (GR) plus a dark sector is the underlying physical theory or whether a modified gravity model is needed. Upcoming dark energy experiments designed to probe dark energy with multiple methods can address this question by comparing the results of the different methods in constraining dark energy parameters. Disagreement would signal the breakdown of the assumed model (GR plus dark energy). We study the power of this consistency test by projecting constraints in the w{sub 0}-w{sub a} plane from the four different techniques of the Dark Energy Survey in the event that the underlying true model is modified gravity. We find that the standard technique of looking for overlap has some shortcomings, and we propose an alternative, more powerful Multidimens