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1

Geothermal Exploration in Eastern California Using Aster Thermal...  

Open Energy Info (EERE)

A particular application is the use of satellite thermal infrared (TIR) imagery from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument aboard...

2

ASTER Bibliography February 21, 2013  

E-Print Network [OSTI]

Kaihatsu, PAGE.IV.1(1)-IV.30(TOTAL 28P). #12;3 Sensors, systems, and next-generation satellites = Bulletin of the Geological Survey of Japan, 46(8), 445-448. Advanced and next-generation and Reflection Radiometer (ASTER), (1996). Infrared spaceborne remote sensing IV; Proceedings

Waliser, Duane E.

3

Using ASTER remote sensing data set for geological mapping, Cecile Gomez a,*, Christophe Delacourt a,1  

E-Print Network [OSTI]

thermal emission and reflection radiometer (ASTER) data for geological application. Visible, near-infrared and short wave infrared reflectance data (9 ASTER bands) have been proc- essed and interpreted in framework to apparent reflectance images corrected to illumination effects. A Principal Component Analysis (PCA) has

Delacourt, Christophe

4

ASTER | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWater Rights,InformationWind EnergyPublicASTER Jump to: navigation,

5

Broadband radiometer  

DOE Patents [OSTI]

A broadband radiometer is disclosed including (a) an optical integrating sphere having generally spherical integrating chamber and an entry port for receiving light (e.g., having visible and ultraviolet fractions), (b) a first optical radiation detector for receiving light from the sphere and producing an electrical output signal corresponding to broadband radiation, (c) a second optical radiation detector for receiving light from the sphere and producing an electrical output signal corresponding to a predetermined wavelength fraction of the broadband radiation, and (d) an output for producing an electrical signal which is proportional to the difference between the two electrical output signals. The radiometer is very useful, for example, in measuring the absolute amount of ultraviolet light present in a given light sample. 8 figs.

Cannon, T.W.

1994-07-26T23:59:59.000Z

6

aster dataset zoom: Topics by E-print Network  

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

click once on the bar next to "Bounding Box" and a window will appear in which you can enter 6 Web site. Alternative Name panicled aster, Aster lanceolatus CiteSeer Summary: aster...

7

aster yellows group: Topics by E-print Network  

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

way out to the far regions of the Aster's realm. Dawn 7 Asteraceae (Aster family) Canada goldenrod Renewable Energy Websites Summary: . Leaves are numer- ous and crowded along...

8

aster yellows: Topics by E-print Network  

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

way out to the far regions of the Aster's realm. Dawn 7 Asteraceae (Aster family) Canada goldenrod Renewable Energy Websites Summary: . Leaves are numer- ous and crowded along...

9

Relations between albedos and emissivities from MODIS and ASTER data over North African Desert  

E-Print Network [OSTI]

map over the arid areas of Algeria, Libya, and Tunisia in North Africa at 30 second (about 1 km) and 2 of incident solar energy reflected by the land surface in all directions. They determine the surface radiationRelations between albedos and emissivities from MODIS and ASTER data over North African Desert L

Zhou, Liming

10

Microwave Radiometer (MWR) Handbook  

SciTech Connect (OSTI)

The Microwave Radiometer (MWR) provides time-series measurements of column-integrated amounts of water vapor and liquid water. The instrument itself is essentially a sensitive microwave receiver. That is, it is tuned to measure the microwave emissions of the vapor and liquid water molecules in the atmosphere at specific frequencies.

Morris, VR

2006-08-01T23:59:59.000Z

11

Active radiometer for self-calibrated furnace temperature measurements  

DOE Patents [OSTI]

Radiometer with a probe beam superimposed on its field-of-view for furnace temperature measurements. The radiometer includes a heterodyne millimeter/submillimeter-wave receiver including a millimeter/submillimeter-wave source for probing. The receiver is adapted to receive radiation from a surface whose temperature is to be measured. The radiation includes a surface emission portion and a surface reflection portion which includes the probe beam energy reflected from the surface. The surface emission portion is related to the surface temperature and the surface reflection portion is related to the emissivity of the surface. The simultaneous measurement of surface emissivity serves as a real time calibration of the temperature measurement.

Woskov, Paul P. (Bedford, MA); Cohn, Daniel R. (Chestnut Hill, MA); Titus, Charles H. (Newtown Square, PA); Wittle, J. Kenneth (Chester Springs, PA); Surma, Jeffrey E. (Kennewick, WA)

1996-01-01T23:59:59.000Z

12

ASTER Thermal Anomalies in western Colorado  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: ASTER Thermal Anomalies Western Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains the areas identified as areas of anomalous surface temperature from ASTER satellite imagery. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. Areas that had temperature greater than 2?, and areas with temperature equal to 1? to 2?, were considered ASTER modeled very warm and warm surface exposures (thermal anomalies), respectively Spatial Domain: Extent: Top: 4547052.446651 m Left: 158917.090117 m Right: 4101162.228281 m Bottom: 4101162.228281 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Zehner, Richard E.

2013-01-01T23:59:59.000Z

13

Radiometer Characterization System  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, and 323Program2 Radiometer Characterization System

14

DEM GENERATION FROM ASTER SATELLITE DATA FOR GEOMORPHOMETRIC ANALYSIS OF CERRO SILLAJHUAY, CHILE/BOLIVIA  

E-Print Network [OSTI]

DEM GENERATION FROM ASTER SATELLITE DATA FOR GEOMORPHOMETRIC ANALYSIS OF CERRO SILLAJHUAY, CHILE/BOLIVIA, a volcano in the Andes of Chile/Bolivia, was developed from ASTER (Advanced Spaceborne Thermal Emission ASTER satellite data of the Cerro Sillajhuay in the Andes of Chile/Bolivia. Fieldwork at the Cerro

Bolch, Tobias

15

Spectroscopy with Multichannel Correlation Radiometers  

E-Print Network [OSTI]

Correlation radiometers make true differential measurements in power with high accuracy and small systematic errors. This receiver architecture has been used in radio astronomy for measurements of continuum radiation for over 50 years; this article examines spectroscopy over broad bandwidths using correlation techniques. After general discussions of correlation and the choice of hybrid phase, experimental results from tests with a simple laboratory multi-channel correlation radiometer are shown. Analysis of the effect of the input hybrid's phase shows that a 90 degree hybrid is likely to be the best general choice for radio astronomy, depending on its amplitude match and phase flatness with frequency. The laboratory results verify that the combination of the correlation architecture and an analog lag correlator is an excellent method for spectroscopy over very wide bandwidths.

A. I. Harris

2005-04-20T23:59:59.000Z

16

Aster jessicae Jessica's aster Status: State Endangered, USFWS Species of Concern  

E-Print Network [OSTI]

creeping rhizomes that tends to grow in large clumps. Plants grow to be 5 feet tall, but average about 3 feet. The herbage, particularly the upper portion, is covered with a dense, uniform, soft pubescence. Leaves are abundant, broadly lance-shaped and entire. Middle stem leaves generally partially clasp the stem and lower leaves tend to dry up and wither as the season progresses. Flowers are generally numerous, lavender in color, 1-1.5 inches in diameter, and form a broad cluster at the top of the plant. Identification Tips: A. jessicae is distinct in its unusually robust nature, dense pubescence, and cordate leaf bases. The only other aster found in the vicinity of Jessica’s aster is A. occidentalis var. intermedius. This species generally inhabits more mesic microhabitats, has smaller flowers, is less robust, possesses few to no hairs, and lacks cordate leaf bases. Phenology: Flowering occurs in late summer and early fall (from late July through mid September). Fruit and seed maturation occurs in September and early October, with seed dispersal likely in mid to late October. Range: Local endemic; southeastern WA (Whitman Co.) and adjacent ID. Occurs in the Columbia Basin physiographic province. Habitat: The species occurs in Palouse grasslands and prairie/ forest transition zones, often in association with small drainages, but above water level on dry ground, 2500-2800 feet in elevation. It occurs primarily in the following habitat types (Daubenmire 1970): ponderosa pine/snowberry, Idaho fescue/snowberry, black hawthorn/snowberry, Idaho fescue/Nootka rosa, and Douglas fir/ ninebark. Other associated species include bluebunch wheatgrass, balsamroot, and yarrow. ©1955 University of Washington Press. Illustration by John H. Rumely. Known distribution of

Rank Gss; General Description Robust

17

aster microtubule dynamics: Topics by E-print Network  

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

aster microtubule dynamics First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Collective behavior of...

18

E-Print Network 3.0 - aster volcano archive Sample Search Results  

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

and mapping with data from NASA's Earth Observing System Summary: -temporal, multi-spatial data fusion capabilities of ASTER for Soufriere Hills Volcano, Montserrat. False...

19

E-Print Network 3.0 - aster terra satellite Sample Search Results  

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

VOLCANO CAPTURED WITH ASTER: A PROPOSAL TO INTEGRATE HIGH-RESOLUTION REMOTE SENSING DATA INTO REAL-TIME ERUPTION Summary: high spatial resolution instrument onboard the Terra...

20

Microwave Radiometer-High Frequency (MWRHF) Handbook  

SciTech Connect (OSTI)

The 90/150-GHz Vapor Radiometer provides time-series measurements of brightness temperatures from two channels centered at 90 and 150 GHz. These two channels are sensitive to the presence of liquid water and precipitable water vapor.

Caddedu, MP

2011-03-17T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Novel Cyclotron-Based Radiometal Production  

SciTech Connect (OSTI)

Accomplishments: (1) Construction of prototype solution target for radiometal production; (2) Testing of prototype target for production of following isotopes: a. Zr-89. Investigation of Zr-89 production from Y-89 nitrate solution. i. Defined problems of gas evolution and salt precipitation. ii. Solved problem of precipitation by addition of nitric acid. iii. Solved gas evolution problem with addition of backpressure regulator and constant degassing of target during irradiations. iv. Investigated effects of Y-89 nitrate concentration and beam current. v. Published abstracts at SNM and ISRS meetings; (3) Design of 2nd generation radiometal solution target. a. Included reflux chamber and smaller target volume to conserve precious target materials. b. Included aluminum for prototype and tantalum for working model. c. Included greater varicosities for improved heat transfer; and, (4) Construction of 2nd generation radiometal solution target started.

DeGrado, Timothy R. [Mayo Clinic] [Mayo Clinic (United States)

2013-10-31T23:59:59.000Z

22

E-Print Network 3.0 - aster image gallery Sample Search Results  

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

Japan Summary: at least one clear image at any area of the world Red color indicates the area observed by ASTER. Dense... are clearly observed on the SWIRTIR images. Temperature...

23

REMOTE SENSING GEOLOGICAL SURVEY  

E-Print Network [OSTI]

-ASTER that operate in visible, near infrared and short wave infrared wavelengths of electromagnetic spectrum and Reflection Radiometer) Imagery Collection in CPRM Examples of sensors used in the CPRM geologic projects #12

24

A new radiometer for earth radiation budget studies  

SciTech Connect (OSTI)

A critical need for the US Global Change Research Program is to provide continuous, well-calibrated radiometric data for radiation balance studies. This paper describes a new, compact, relatively light-weight, adaptable radiometer which will provide both spectrally integrated measurements and data in selected spectral bands. The radiometer design is suitable for use on (small) satellites, aircraft, or Unmanned Aerospace Vehicles (UAVs). Some considerations for the implementation of this radiometer on a small satellite are given. 17 refs.

Weber, P.G.

1992-05-01T23:59:59.000Z

25

Microfluidic Radiometal Labeling Systems for Biomolecules  

SciTech Connect (OSTI)

In a typical labeling procedure with radiometals, such as Cu-64 and Ga-68; a very large (~ 100-fold) excess of the non-radioactive reactant (precursor) is used to promote rapid and efficient incorporation of the radioisotope into the PET imaging agent. In order to achieve high specific activities, careful control of reaction conditions and extensive chromatographic purifications are required in order to separate the labeled compounds from the cold precursors. Here we propose a microfluidic approach to overcome these problems, and achieve high specific activities in a more convenient, semi-automated fashion and faster time frame. Microfluidic reactors, consisting of a network of micron-sized channels (typical dimensions in the range 10 â�� 300 �¼m), filters, separation columns, electrodes and reaction loops/chambers etched onto a solid substrate, are now emerging as an extremely useful technology for the intensification and miniaturization of chemical processes. The ability to manipulate, process and analyze reagent concentrations and reaction interfaces in both space and time within the channel network of a microreactor provides the fine level of reaction control that is desirable in PET radiochemistry practice. These factors can bring radiometal labeling, specifically the preparation of radio-labeled biomolecules such as antibodies, much closer to their theoretical maximum specific activities.

Reichert, D E; Kenis, P J. A.

2011-12-29T23:59:59.000Z

26

CARACTERISATION DES REJETS MINIERS DANS LE BASSIN VERSANT DE LA  

E-Print Network [OSTI]

(Advanced Spaceborne Thermal Emission and Reflection Radiometer) VNIR (Visible Near Infrared), SWIR les données multispectrales du domaine VNIR (Visible Near Infrared), SWIR (Shortwave Infrared) et TIR (Thermal Infrared) de l'image ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer). Nous

Paris-Sud XI, Université de

27

Four absolute cavity radiometer (pyrheliometer) intercomparisons at New River, Arizona: radiometer standards  

SciTech Connect (OSTI)

Four detailed intercomparisons were made for a number of models of cavity-type self-calibrating radiometers (pyrheliometers). Each intercomparison consisted of simultaneous readings of pyrheliometers at 30-second intervals in runs of 10 minutes, with at least 15 runs per intercomparison. Twenty-seven instruments were in at least one intercomparison, and five were in all four. Summarized results and all raw data are provided from the intercomparisons.

Estey, R.S.; Seaman, C.H.

1981-07-01T23:59:59.000Z

28

ARM: Microwave Radiometer data (MWR Profiles - QME), water vapor, temp, cloud liquid water, precip water retrievals  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Microwave Radiometer data (MWR Profiles - QME), water vapor, temp, cloud liquid water, precip water retrievals

Cadeddu, Maria

29

ARM: Broadband Radiometer Station (BRS) broadband shortwave and longwave 1-min radiation data with Dutton correction  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

Broadband Radiometer Station (BRS) broadband shortwave and longwave 1-min radiation data with Dutton correction

Stoffel, Tom; Kay, Bev; Habte, Aron; Anderberg, Mary; Kutchenreiter, Mark

30

Correlation of globe thermometer response and a YSI radiometer response  

E-Print Network [OSTI]

CORRELATION OF GLOBE THERMOMETER RESPONSE AND A YSI RADIOMETER RESPONSE A Thesis by ROBERT HOWARD FRANKNECHT Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE May 1979 Major Subjects Industrial Hygiene CORRELATION OF GLOBE THERMOMETER RESPONSE AND A YSI RADIOMETER RESPONSE A Thesis by ROBERT HOMARD FRANKNECHT Approved as to sty1e and content by: C'6~& . ~ Chairman of Committee ead...

Franknecht, Robert Howard

1979-01-01T23:59:59.000Z

31

Multifilter Rotating Shadowband Radiometer (MFRSR) Handbook  

SciTech Connect (OSTI)

The visible Multifilter Rotating Shadowband Radiometer (MFRSR) is a passive instrument that measures global and diffuse components of solar irradiance at six narrowband channels and one open, or broadband, channel (Harrison et al. 1994). Direct irradiance is not a primary measurement, but is calculated using the diffuse and global measurements. To collect one data record, the MFRSR takes measurements at four different shadowband positions. The first measurement is taken with the shadowband in the nadir (home) position. The next three measurements are, in order, the first side-band, sun-blocked, and second side-band. The side-band measurements are used to correct for the portion of the sky obscured by the shadowband. The nominal wavelengths of the narrowband channels are 415, 500, 615, 673, 870, and 940 nm. From such measurements, one may infer the atmosphere's aerosol optical depth at each wavelength. In turn, these optical depths may be used to derive information about the column abundances of ozone and water vapor (Michalsky et al. 1995), as well as aerosol (Harrison and Michalsky 1994) and other atmospheric constituents.

Hodges, GB; Michalsky, JJ

2011-02-07T23:59:59.000Z

32

Areas of Anomalous Surface Temperature in Chaffee County, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Very Warm Modeled Temperature Chaffee Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Chaffee County identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature greater than 2? were considered ASTER modeled very warm surface exposures (thermal anomalies) Spatial Domain: Extent: Top: 4333432.368072 m Left: 366907.700763 m Right: 452457.816015 m Bottom: 4208271.566715 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

33

Areas of Anomalous Surface Temperature in Routt County, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Very Warm Modeled Temperature Routt Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Routt County identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature greater than 2? were considered ASTER modeled very warm surface exposures (thermal anomalies) Spatial Domain: Extent: Top: 4501071.574000 m Left: 311351.975000 m Right: 359681.975000 m Bottom: 4447251.574000 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

34

Areas of Anomalous Surface Temperature in Garfield County, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Very Warm Modeled Temperature Garfield Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Garfield County identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature greater than 2? were considered ASTER modeled very warm surface exposures (thermal anomalies) Spatial Domain: Extent: Top: 4441550.552290 m Left: 271445.053363 m Right: 359825.053363 m Bottom: 4312490.552290 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

35

Areas of Anomalous Surface Temperature in Archuleta County, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Very Warm Modeled Temperature Archuleta Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Archuleta County identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature greater than 2? were considered ASTER modeled very warm surface exposures (thermal anomalies) Spatial Domain: Extent: Top: 4144691.792023 m Left: 285531.662851 m Right: 348694.182686 m Bottom: 4097005.210304 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

36

Areas of Anomalous Surface Temperature in Dolored County, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Very Warm Modeled Temperature Dolores Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Dolores County identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature greater than 2? were considered ASTER modeled very warm surface exposures (thermal anomalies) Spatial Domain: Extent: Top: 4186234.213315 m Left: 212558.673056 m Right: 232922.811862 m Bottom: 4176781.467043 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

37

Ice in Volcanic Clouds: When and Where? William I Rose, Gregg JS Bluth and I Matthew Watson  

E-Print Network [OSTI]

of large ash particles in descent. Ash fall occurs most markedly from the high energy first stage Very High Resolution Radiometer; MODIS= Moderate Resolution Imaging Spectroradiometer; ASTER= Advanced Spaceborne Thermal Emission and Reflection Radiometer; TOMS= Total Ozone Mapping Spectrometer occur and when

Bluth, Gregg

38

Getting DEM from ASTER (~30m resolution) + importing it into ArcMap + georeferencing an image on top (e.g. satellite image, geological map)  

E-Print Network [OSTI]

in the "Search Term" bar: type "ASTER GDEM" and the "ASTER Global Digital Elevation Model V002" will appear in the "Select Datasets" window at the bottom. Then, select the zone of interest in the "Spatial Search" window click once on the bar next to "Bounding Box" and a window will appear in which you can enter

39

Microwave Radiometer – 3 Channel (MWR3C) Handbook  

SciTech Connect (OSTI)

The microwave radiometer 3-channel (MWR3C) provides time-series measurements of brightness temperatures from three channels centered at 23.834, 30, and 89 GHz. These three channels are sensitive to the presence of liquid water and precipitable water vapor.

Cadeddu, MP

2012-05-04T23:59:59.000Z

40

Evaluation of Radiometers Deployed at the National Renewable Energy Laboratory's Solar Radiation Research Laboratory  

SciTech Connect (OSTI)

This study analyzes the performance of various commercially available radiometers used for measuring global horizontal irradiances and direct normal irradiances. These include pyranometers, pyrheliometers, rotating shadowband radiometers, and a pyranometer with fixed internal shading and are all deployed at the National Renewable Energy Laboratory's Solar Radiation Research Laboratory. Data from 32 global horizontal irradiance and 19 direct normal irradiance radiometers are presented. The radiometers in this study were deployed for one year (from April 1, 2011, through March 31, 2012) and compared to measurements from radiometers with the lowest values of estimated measurement uncertainties for producing reference global horizontal irradiances and direct normal irradiances.

Habte, A.; Wilcox, S.; Stoffel, T.

2014-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Quantitative Analysis of Spectral Impacts on Silicon Photodiode Radiometers  

SciTech Connect (OSTI)

Inexpensive broadband pyranometers with silicon photodiode detectors have a non-uniform spectral response over the spectral range of 300-1100 nm. The response region includes only about 70% to 75% of the total energy in the terrestrial solar spectral distribution from 300 nm to 4000 nm. The solar spectrum constantly changes with solar position and atmospheric conditions. Relative spectral distributions of diffuse hemispherical irradiance sky radiation and total global hemispherical irradiance are drastically different. This analysis convolves a typical photodiode response with SMARTS 2.9.5 spectral model spectra for different sites and atmospheric conditions. Differences in solar component spectra lead to differences on the order of 2% in global hemispherical and 5% or more in diffuse hemispherical irradiances from silicon radiometers. The result is that errors of more than 7% can occur in the computation of direct normal irradiance from global hemispherical irradiance and diffuse hemispherical irradiance using these radiometers.

Myers, D. R.

2011-01-01T23:59:59.000Z

42

Quantitative Analysis of Spectral Impacts on Silicon Photodiode Radiometers: Preprint  

SciTech Connect (OSTI)

Inexpensive broadband pyranometers with silicon photodiode detectors have a non-uniform spectral response over the spectral range of 300-1100 nm. The response region includes only about 70% to 75% of the total energy in the terrestrial solar spectral distribution from 300 nm to 4000 nm. The solar spectrum constantly changes with solar position and atmospheric conditions. Relative spectral distributions of diffuse hemispherical irradiance sky radiation and total global hemispherical irradiance are drastically different. This analysis convolves a typical photodiode response with SMARTS 2.9.5 spectral model spectra for different sites and atmospheric conditions. Differences in solar component spectra lead to differences on the order of 2% in global hemispherical and 5% or more in diffuse hemispherical irradiances from silicon radiometers. The result is that errors of more than 7% can occur in the computation of direct normal irradiance from global hemispherical irradiance and diffuse hemispherical irradiance using these radiometers.

Myers, D. R.

2011-04-01T23:59:59.000Z

43

Narrow Field of View Zenith Radiometer (NFOV) Handbook  

SciTech Connect (OSTI)

The two-channel narrow field-of-view radiometer (NFOV2) is a ground-based radiometer that looks straight up and measures radiance directly above the instrument at wavelengths of 673 and 870 nm. The field-of-view of the instrument is 1.2 degrees, and the sampling time resolution is one second. Measurements of the NFOV2 have been used to retrieve optical properties for overhead clouds that range from patchy to overcast. With a one-second sampling rate of the NFOV2, faster than almost any other ARM Climate Research Facility (ACRF) instrument, we are able, for the first time, to capture changes in cloud optical properties at the natural time scale of cloud evolution.

Chiu, C; Marshak, A; Hodges, G; Barnard, JC; Schmelzer, J

2008-11-01T23:59:59.000Z

44

ARM Multi-Filter Rotating Shadowband Radiometer (MFRSR): irradiances  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The multifilter rotating shadowband radiometer (MFRSR) takes spectral measurements of direct normal, diffuse horizontal and total horizontal solar irradiances. These measurements are at nominal wavelengths of 415, 500, 615, 673, 870, and 940 nm. The measurements are made at a user-specified time interval, usually about one minute or less. The sampling rate for the Atmospheric Radiation Measurement (ARM) Climate Research Facility MFRSRs is 20 seconds. From such measurements, one may infer the atmosphere's optical depth at the wavelengths mentioned above. In turn, these optical depths may be used to derive information about the column abundances of ozone and water vapor (Michalsky et al. 1995), as well as aerosol (Michalsky et al. 1994) and other atmospheric constituents. A silicon detector is also part of the MFRSR. This detector provides a measure of the broadband direct normal, diffuse horizontal and total horizontal solar irradiances. A MFRSR head that is mounted to look vertically downward can measure upwelling spectral irradiances. In the ARM system, this instrument is called a multifilter radiometer (MFR). At the Southern Great Plains (SGP) there are two MFRs; one mounted at the 10-m height and the other at 25 m. At the North Slope of Alaska (NSA) sites, the MFRs are mounted at 10 m. MFRSR heads are also used to measure normal incidence radiation by mounting on a solar tracking device. These are referred to as normal incidence multi-filter radiometers (NIMFRs) and are located at the SGP and NSA sites. Another specialized use for the MFRSR is the narrow field of view (NFOV) instrument located at SGP. The NFOV is a ground-based radiometer (MFRSR head) that looks straight up.

Hodges, Gary

45

The multi-filter rotating shadowband radiometer (MFRSR) - precision infrared radiometer (PIR) platform in Fairbanks: Scientific objectives  

SciTech Connect (OSTI)

The multi-filter rotating shadowband radiometer (MFRSR) and precision infrared radiometer (PIR) have been employed at the Geophysical Institute in Fairbanks to check their performance under arctic conditions. Drawing on the experience of the previous measurements in the Arctic, the PIR was equipped with a ventilator to prevent frost and moisture build-up. We adopted the Solar Infrared Observing Sytem (SIROS) concept from the Southern Great Plains Cloud and Radiation Testbed (CART) to allow implementation of the same data processing software for a set of radiation and meteorological instruments. To validate the level of performance of the whole SIROS prior to its incorporation into the North Slope of Alaska (NSA) Cloud and Radiation Testbed Site instrumental suite for flux radiatin measurements, the comparison between measurements and model predictions will be undertaken to assess the MFRSR-PIR Arctic data quality.

Stamnes, K.; Leontieva, E. [Univ. of Alaska, Fairbanks (United States)

1996-04-01T23:59:59.000Z

46

Areas of Anomalous Surface Temperature in Alamosa and Saguache Counties, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Very Warm Modeled Temperature Alamosa Saguache Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Alamosa and Saguache Counties identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature greater than 2? were considered ASTER modeled very warm surface exposures (thermal anomalies) Spatial Domain: Extent: Top: 4217727.601630 m Left: 394390.400264 m Right: 460179.841813 m Bottom: 4156258.036086 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

47

Design of a differential radiometer for atmospheric radiative flux measurements  

SciTech Connect (OSTI)

The Hemispherical Optimized NEt Radiometer (HONER) is an instrument under development at the Los Alamos National Laboratory for deployment on an unmanned aerospace vehicle as part of the Atmospheric Radiation Measurements (ARM/UAV) program. HONER is a differential radiometer which will measure the difference between the total upwelling and downwelling fluxes and is intended to provide a means of measuring the atmospheric radiative flux divergence. Unlike existing instruments which measure the upwelling and downwelling fluxes separately, HONER will achieve an optical difference by chopping the two fluxes alternately onto a common pyroelectric detector. HONER will provide data resolved into two spectral bands; one covering the solar dominated region from less than 0.4 micrometer to approximately 4.5 micrometers and the other covering the region from approximately 4.5 micrometers to greater than 50 micrometers, dominated by thermal radiation. The means of separating the spectral regions guarantees seamless summation to calculate the total flux. The fields-of-view are near-hemispherical, upward and downward. The instrument can be converted, in flight, from the differential mode to absolute mode, measuring the upwelling and downwelling fluxes separately and simultaneously. The instrument also features continuous calibration from on-board sources. We will describe the design and operation of the sensor head and the on-board reference sources as well as the means of deployment.

LaDelfe, P.C.; Weber, P.G.; Rodriguez, C.W.

1994-11-01T23:59:59.000Z

48

ECE RADIOMETER UPGRADE ON THE DIII-D TOKAMAK  

SciTech Connect (OSTI)

OAK A271 ECE RADIOMETER UPGRADE ON THE DIII-D TOKAMAK. The electron cyclotron emission (ECE) heterodyne radiometer diagnostic on DIII-D has been upgraded with the addition of eight channels for a total of 40. The new, higher frequency channels allow measurements of electron temperature into the magnetic axis in discharges at maximum field, 2.15 T. The complete set now extends over the full usable range of second harmonic emission frequencies at 2.0 T covering radii from the outer edge inward to the location of third harmonic overlap on the high field side. Full coverage permits the measurement of heat pulses and magnetohydrodynamic (MHD) fluctuations on both sides of the magnetic axis. In addition, the symmetric measurements are used to fix the location of the magnetic axis in tokamak magnetic equilibrium reconstructions. Also, the new higher frequency channels have been used to determine central T{sub e} with good time resolution in low field, high density discharges using third harmonic ECE in the optically gray and optically thick regimes.

AUSTIN, ME; LOHR, J

2002-08-01T23:59:59.000Z

49

Ten channel background alpha radiometer for nondestructive analysis of low activity samples  

SciTech Connect (OSTI)

The description of a ten-channel alpha-radiometer based on large-area semiconductor detectors is presented in this paper. The radiometer is intended for determination of soil pollution by alpha-active radionuclides using thick samples. The analysis of isotopes is also provided. The concentrations of Pu and Am isotopes in soil samples are determined.

Pugatch, V.M.; Pavlenko, Y.N.; Vasiliev, Y.O.; Nenakhov, A.N.; Tkatch, N.M.; Barabash, L.I.; Berdnichenko, S.V.; Litovchenko, P.G.; Rosenfeld, A.B.; Zinets, O.S. (Inst. for Nuclear Research, Kiev (USSR))

1992-10-01T23:59:59.000Z

50

Calibration of a Solar Absolute Cavity Radiometer with Traceability to the World Radiometric Reference  

SciTech Connect (OSTI)

This report describes the present method of establishing traceability of absolute cavity radiometers to the World Radiometric Reference (WRR) through the process employed in the International Pyrheliometer Comparisons (IPC). This method derives the WRR reduction factor for each of the participating cavity radiometers. An alternative method is proposed, described, and evaluated as a way to reduce the uncertainty in the comparison process. The two methods are compared using a sample of data from the recent IPC-VIII conducted from September 25th to October 13th, 1995 at the World Radiation Center in Davos, Switzerland. A description of absolute cavity radiometers is also included, using a PMO-6 as an example of active cavity radiometers, and a HF as an example of passive cavity radiometers.

Reda, I.

1996-01-01T23:59:59.000Z

51

The Planck/LFI Radiometer Electronics Box Assembly  

E-Print Network [OSTI]

The Radiometer Electronics Box Assembly (REBA) is the control and data processing on board computer of the Low Frequency Instrument (LFI) of the Planck mission (ESA). The REBA was designed and built incorporating state of the art processors, communication interfaces and real time operating system software in order to meet the scientific performance of the LFI. We present a technical summary of the REBA, including a physical, functional, electrical, mechanical and thermal description. Aspects of the design and development, the assembly, the integration and the verification of the equipment are provided. A brief description of the LFI on board software is given including the Low-Level Software and the main functionalities and architecture of the Application Software. The compressor module, which has been developed as an independent product, later integrated in the application, is also described in this paper. Two identical engineering models EM and AVM, the engineering qualification model EQM, the flight model ...

Herreros, J M; Rebolo, R; Chulani, H; Rubino-Martin, J A; Hildebrandt, S R; Bersanelli, M; Butler, R C; Miccolis, M; Pena, A; Pereira, M; Torrero, F; Franceschet, C; Lopez, M; Alcala, C; 10.1088/1748-0221/4/12/T12008

2010-01-01T23:59:59.000Z

52

Characterization and calibration of 8-channel E-band heterodyne radiometer system for SST-1 tokamak  

SciTech Connect (OSTI)

An 8-channel E-band heterodyne radiometer system (74–86 GHz) is designed, characterized, and calibrated to measure the radial electron temperature profile by measuring Electron Cyclotron Emission spectrum at SST-1 Tokamak. The developed radiometer has a noise equivalent temperature of 1 eV and sensitivity of 5 × 10{sup 9} V/W. In order to precisely measure the absolute value of electron temperature, a calibration measurement of the radiometer system is performed using hot-cold Dicke switch method, which confirms the system linearity.

Siju, Varsha; Kumar, Dharmendra; Shukla, Praveena; Pathak, S. K. [Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 (India)] [Institute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428 (India)

2014-05-15T23:59:59.000Z

53

Areas of Weakly Anomalous to Anomalous Surface Temperature in Alamosa and Saguache Counties, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Very Warm Modeled Temperature Alamosa Saguache Edition: First Note: This “Weakly Anomalous to Anomalous Surface Temperature” dataset differs from the “Anomalous Surface Temperature” dataset for this county (another remotely sensed CIRES product) by showing areas of modeled temperatures between 1? and 2? above the mean, as opposed to the greater than 2? temperatures contained in the “Anomalous Surface Temperature” dataset. Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Alamosa and Saguache Counties identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature greater than 2? were considered ASTER modeled very warm surface exposures (thermal anomalies) Spatial Domain: Extent: Top: 4217727.601630 m Left: 394390.400264 m Right: 460179.841813 m Bottom: 4156258.036086 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

54

Areas of Weakly Anomalous to Anomalous Surface Temperature in Archuleta County, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Warm Modeled Temperature Archuleta Note: This “Weakly Anomalous to Anomalous Surface Temperature” dataset differs from the “Anomalous Surface Temperature” dataset for this county (another remotely sensed CIRES product) by showing areas of modeled temperatures between 1? and 2? above the mean, as opposed to the greater than 2? temperatures contained in the “Anomalous Surface Temperature” dataset. Edition: First Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Archuleta County identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature between 1? and 2? were considered ASTER modeled warm surface exposures (thermal anomalies). Spatial Domain: Extent: Top: 4144825.235807 m Left: 285446.256851 m Right: 350577.338852 m Bottom: 4096962.250137 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

55

Areas of Weakly Anomalous to Anomalous Surface Temperature in Garfield County, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Warm Modeled Temperature Garfield Edition: First Note: This “Weakly Anomalous to Anomalous Surface Temperature” dataset differs from the “Anomalous Surface Temperature” dataset for this county (another remotely sensed CIRES product) by showing areas of modeled temperatures between 1? and 2? above the mean, as opposed to the greater than 2? temperatures contained in the “Anomalous Surface Temperature” dataset. Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Garfield County identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature between 1? and 2? were considered ASTER modeled warm surface exposures (thermal anomalies) Spatial Domain: Extent: Top: 4442180.552290 m Left: 268655.053363 m Right: 359915.053363 m Bottom: 4312490.552290 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

56

Areas of Weakly Anomalous to Anomalous Surface Temperature in Dolores County, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Very Warm Modeled Temperature Dolores Edition: First Note: This “Weakly Anomalous to Anomalous Surface Temperature” dataset differs from the “Anomalous Surface Temperature” dataset for this county (another remotely sensed CIRES product) by showing areas of modeled temperatures between 1? and 2? above the mean, as opposed to the greater than 2? temperatures contained in the “Anomalous Surface Temperature” dataset. Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Dolores County identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature greater than 2? were considered ASTER modeled very warm surface exposures (thermal anomalies) Spatial Domain: Extent: Top: 4186234.213315 m Left: 212558.673056 m Right: 232922.811862 m Bottom: 4176781.467043 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

57

Areas of Weakly Anomalous to Anomalous Surface Temperature in Chaffee County, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Very Warm Modeled Temperature Chaffee Edition: First Note: This “Weakly Anomalous to Anomalous Surface Temperature” dataset differs from the “Anomalous Surface Temperature” dataset for this county (another remotely sensed CIRES product) by showing areas of modeled temperatures between 1? and 2? above the mean, as opposed to the greater than 2? temperatures contained in the “Anomalous Surface Temperature” dataset. Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Chaffee County identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature greater than 2? were considered ASTER modeled very warm surface exposures (thermal anomalies) Spatial Domain: Extent: Top: 4333432.368072 m Left: 366907.700763 m Right: 452457.816015 m Bottom: 4208271.566715 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

58

Areas of Weakly Anomalous to Anomalous Surface Temperature in Routt County, Colorado, as Identified from ASTER Thermal Data  

SciTech Connect (OSTI)

Citation Information: Originator: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Publication Date: 2012 Title: Warm Modeled Temperature Routt Edition: First Note: This “Weakly Anomalous to Anomalous Surface Temperature” dataset differs from the “Anomalous Surface Temperature” dataset for this county (another remotely sensed CIRES product) by showing areas of modeled temperatures between 1? and 2? above the mean, as opposed to the greater than 2? temperatures contained in the “Anomalous Surface Temperature” dataset. Publication Information: Publication Place: Earth Science & Observation Center, Cooperative Institute for Research in Environmental Science (CIRES), University of Colorado, Boulder Publisher: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Description: This layer contains areas of anomalous surface temperature in Routt County identified from ASTER thermal data and spatial based insolation model. The temperature is calculated using the Emissivity Normalization Algorithm that separate temperature from emissivity. The incoming solar radiation was calculated using spatial based insolation model developed by Fu and Rich (1999). Then the temperature due to solar radiation was calculated using emissivity derived from ASTER data. The residual temperature, i.e. temperature due to solar radiation subtracted from ASTER temperature was used to identify thermally anomalous areas. Areas that had temperature between 1? and 2? were considered ASTER modeled warm surface exposures (thermal anomalies) Spatial Domain: Extent: Top: 4501071.574000 m Left: 311351.975000 m Right: 359411.975000 m Bottom: 4447521.574000 m Contact Information: Contact Organization: Earth Science &Observation Center (ESOC), CIRES, University of Colorado at Boulder Contact Person: Khalid Hussein Address: CIRES, Ekeley Building Earth Science & Observation Center (ESOC) 216 UCB City: Boulder State: CO Postal Code: 80309-0216 Country: USA Contact Telephone: 303-492-6782 Spatial Reference Information: Coordinate System: Universal Transverse Mercator (UTM) WGS’1984 Zone 13N False Easting: 500000.00000000 False Northing: 0.00000000 Central Meridian: -105.00000000 Scale Factor: 0.99960000 Latitude of Origin: 0.00000000 Linear Unit: Meter Datum: World Geodetic System ’1984 (WGS ’1984) Prime Meridian: Greenwich Angular Unit: Degree Digital Form: Format Name: Shape file

Hussein, Khalid

2012-02-01T23:59:59.000Z

59

Sea surface temperature for climate from the along-track scanning radiometers   

E-Print Network [OSTI]

This thesis describes the construction of a sea surface temperature (SST) dataset from Along-Track Scanning Radiometer (ATSR) observations suitable for climate applications. The algorithms presented here are now used at ...

Embury, Owen

2014-06-30T23:59:59.000Z

60

Evaluating Solar Resource Data Obtained from Multiple Radiometers Deployed at the National Renewable Energy Laboratory: Preprint  

SciTech Connect (OSTI)

Solar radiation resource measurements from radiometers are used to predict and evaluate the performance of photovoltaic and concentrating solar power systems, validate satellite-based models for estimating solar resources, and advance research in solar forecasting and climate change. This study analyzes the performance of various commercially available radiometers used for measuring global horizontal irradiances (GHI) and direct normal irradiances (DNI). These include pyranometers, pyrheliometers, rotating shadowband irradiometers, and a pyranometer with a shading ring deployed at the National Renewable Energy Laboratory's Solar Radiation Research Laboratory (SRRL). The radiometers in this study were deployed for one year (from April 1, 2011, through March 31, 2012) and compared to measurements from radiometers with the lowest values of estimated measurement uncertainties for producing reference GHI and DNI.

Habte, A.; Sengupta, M.; Andreas, A.; Wilcox, S.; Stoffel, T.

2014-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

CHAPTER 8. QUANTITATIVE GEOLOGICAL SURFACE PROCESSES EXTRACTED FROM INFRARED SPECTROSCOPY AND REMOTE SENSING  

E-Print Network [OSTI]

, the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) instrument has been observing the Earth's surface at high spatial resolution and in multiple wavelength bands during the day and night and lithological mapping because the energy emitted from the surface is sensitive to most of the major rock forming

Ramsey, Michael

62

Evaluation of Radiometers in Full-Time Use at the National Renewable Energy Laboratory Solar Radiation Research Laboratory  

SciTech Connect (OSTI)

This report describes the evaluation of the relative performance of the complement of solar radiometers deployed at the National Renewable Energy Laboratory (NREL) Solar Radiation Research Laboratory (SRRL).

Wilcox, S. M.; Myers, D. R.

2008-12-01T23:59:59.000Z

63

A 16-channel heterodyne electron cyclotron emission radiometer on J-TEXT  

SciTech Connect (OSTI)

To study equilibrium temporal dynamics and the mechanisms of magnetohydrodynamic instabilities, a 16-channel heterodyne electron cyclotron emission (ECE) radiometer has been developed to view the J-TEXT tokamak from the low field side. The ECE radiometer detects second-harmonic extraordinary mode in the frequency band of 94-125 GHz which corresponds to resonances from 1.8 T to 2.2 T. This ECE system consists of an ECE transmission line, a radio frequency unit, and two 8-channel intermediate frequency units. An in situ blackbody calibration source is applied for system calibration by comparison of hot and cold sources in order to provide an absolute temperature measurement.

Yang, Z. J.; Zhuang, G.; Xiao, J. S.; Wang, Z. J. [State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Key Laboratory of Fusion and Advanced Electromagnetic Technology Ministry of Education, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China); Phillips, P. E.; Huang, H.; Rowan, W. L. [Institute for Fusion Studies, University of Texas at Austin, Austin, Texas 78712 (United States)

2012-10-15T23:59:59.000Z

64

A Novel Retrieval Algorithm for Cloud Optical Properties from the Atmopsheric Radiation Measurement Program's Two-Channel Narrow-Field-of-View Radiometer  

SciTech Connect (OSTI)

Cloud optical depth is the most important of all cloud optical properties, and vital for any cloud-radiation parameterization. To estimate cloud optical depth, the atmospheric science community has widely used ground-based flux measurements from either broadband or narrowband radiometers in the past decade. However, this type of technique is limited to overcast conditions and, at best, gives us an "effective" cloud optical depth instead of its "local" value. Unlike flux observations, monochromatic narrow-field-of-view (NFOV) radiance measurements contain information of local cloud properties, but unfortunately, the use of radiance to interpret optical depth suffers from retrieval ambiguity. We have pioneered an algorithm to retrieve cloud optical depth in a fully three-dimensional cloud situation using new Atmospheric Radiation Measurement (ARM) ground-based passive two-channel (673 and 870 nm) NFOV measurements. The underlying principle of the algorithm is that these two channels have similar cloud properties but strong spectral contrast in surface reflectance. This algorthm offers the first opportunity to illustrate cloud evolution with high temporal resolution retrievals. A combination of two-channel NFOV radiances with multi-filter rotating shadowband radiometer (MFRSR) fluxes for the retrieval of cloud optical properties is also discussed.

Wiscombe, Warren J.; Marshak, A.; Chiu, J.-Y. C.; Knyazikhin, Y.; Barnard, James C.; Luo, Yi

2005-03-14T23:59:59.000Z

65

Outgassing, Temperature Gradients and the Radiometer Effect in LISA: A Torsion Pendulum Investigation  

E-Print Network [OSTI]

Thermal modeling of the LISA gravitational reference sensor (GRS) includes such effects as outgassing from the proof mass and its housing and the radiometer effect. Experimental data in conditions emulating the LISA GRS are required to confidently predict the GRS performance. Outgassing and the radiometer effect are similar in characteristics and are difficult to decouple experimentally. The design of our torsion balance allows us to investigate differential radiation pressure, the radiometer effect, and outgassing on closely separated conducting surfaces with high sensitivity. A thermally controlled split copper plate is brought near a freely hanging plate-torsion pendulum.We have varied the temperature on each half of the copper plate and have measured the resulting forces on the pendulum. We have determined that to first order the current GRS model for the radiometer effect, outgassing, and radiation pressure are mostly consistent with our torsion balance measurements and therefore these thermal effects do not appear to be a large hindrance to the LISA noise budget. However, there remain discrepancies between the predicted dependence of these effects on the temperature of our apparatus.

Scott E Pollack; Stephan Schlamminger; Jens H Gundlach

2007-02-08T23:59:59.000Z

66

Simultaneous Retreival of Surface Wind Speed and Rain Rate using Radar and Radiometer Measurements  

E-Print Network [OSTI]

to simultaneously retrieve the vertical profile of precipitation and the near-surface wind speed. ResultsSimultaneous Retreival of Surface Wind Speed and Rain Rate using Radar and Radiometer Measurements simultaneously estimates the over ocean near-surface wind speed and rain rate profile using data from a 10.7 GHz

Ruf, Christopher

67

Potential Soil Moisture Products from the Aquarius Radiometer and Scatterometer Using an Observing System Simulation Experiment  

SciTech Connect (OSTI)

Using an observing system simulation experiment (OSSE), we investigate the potential soil moisture retrieval capability of the National Aeronautics and Space Administration (NASA) Aquarius radiometer (L-band 1.413 GHz) and scatterometer (L-band, 1.260 GHz). We estimate potential errors in soil moisture retrievals and identify the sources that could cause those errors. The OSSE system includes (i) a land surface model in the NASA Land Information System, (ii) a radiative transfer and backscatter model, (iii) a realistic orbital sampling model, and (iv) an inverse soil moisture retrieval model. We execute the OSSE over a 1000 2200 km2 region in the central United States, including the Red and Arkansas river basins. Spatial distributions of soil moisture retrieved from the radiometer and scatterometer are close to the synthetic truth. High root mean square errors (RMSEs) of radiometer retrievals are found over the heavily vegetated regions, while large RMSEs of scatterometer retrievals are scattered over the entire domain. The temporal variations of soil moisture are realistically captured over a sparely vegetated region with correlations 0.98 and 0.63, and RMSEs 1.28% and 8.23% vol/vol for radiometer and scatterometer, respectively. Over the densely vegetated region, soil moisture exhibits larger temporal variation than the truth, leading to correlation 0.70 and 0.67, respectively, and RMSEs 9.49% and 6.09% vol/vol respectively. The domain-averaged correlations and RMSEs suggest that radiometer is more accurate than scatterometer in retrieving soil moisture. The analysis also demonstrates that the accuracy of the retrieved soil moisture is affected by vegetation coverage and spatial aggregation.

Luo, Yan [I.M. Systems Group at NOAA/NCEP/EMC; Feng, Xia [George Mason University; Houser, Paul [George Mason University; Anantharaj, Valentine G [ORNL; Fan, Xingang [Western Kentucky University, Bowling Green; De Lannoy, Gabrielle [Ghent University, Belgium; Zhan, Xiwu [NOAA/NESDIS Center for Satellite Applications and Research; Dabbiru, Lalitha [Mississippi State University (MSU)

2013-01-01T23:59:59.000Z

68

Development of a new radiometer for the thermodynamic measurement of high temperature fixed points  

SciTech Connect (OSTI)

The National Physical Laboratory (NPL) has developed a new radiometer to measure the thermodynamic melting point temperatures of high temperature fixed points with ultra-low uncertainties. In comparison with the NPL's Absolute Radiation Thermometer (ART), the 'THermodynamic Optical Radiometer' (THOR) is more portable and compact, with a much lower size-of-source effect and improved performance in other parameters such as temperature sensitivity. It has been designed for calibration as a whole instrument via the radiance method, removing the need to calibrate the individual subcomponents, as required by ART, and thereby reducing uncertainties. In addition, the calibration approach has been improved through a new integrating sphere that has been designed to have greater uniformity.

Dury, M. R.; Goodman, T. M.; Lowe, D. H.; Machin, G.; Woolliams, E. R. [National Physical Laboratory, Teddington (United Kingdom)] [National Physical Laboratory, Teddington (United Kingdom)

2013-09-11T23:59:59.000Z

69

Electron cyclotron emission radiometer upgrade on the Joint European Torus (JET) tokamak  

SciTech Connect (OSTI)

The capabilities of the Joint European Torus (JET) electron cyclotron emission (ECE) diagnostics have recently been extended with an upgrading of the heterodyne radiometer. The number of channels has been doubled to 96 channels, with a frequency separation corresponding to <1 cm for JET magnetic field gradient, and with a frequency response of 1 MHz. This enhancement has increased the radial coverage of the ECE electron temperature measurements in JET to approximately the full plasma column (limited at R>2.6 m for the X-mode due to harmonic overlap) at almost all magnetic field values used at JET (1.7 Tradiometer is presented along with some results showing its performance.

Luna, E. de la; Sanchez, J.; Tribaldos, V.; Conway, G.; Suttrop, W.; Fessey, J.; Prentice, R.; Gowers, C.; Chareau, J. M. [Asociacion EURATOM-CIEMAT para Fusion, CIEMAT, Madrid (Spain); IPP-EURATOM Association, Garching (Germany); EURATOM-UKAEA Fusion Associations, Culham Science Centre, Abingdon (United Kingdom); European Commission, Institute for Transuranium Elements, Karlsruhe (Germany)

2004-10-01T23:59:59.000Z

70

Preliminary separation of galactic and cosmic microwave emission for the COBE Differential Microwave Radiometer  

SciTech Connect (OSTI)

Preliminary models of microwave emission from the Milky Way Galaxy based on COBE and other data are constructed for the purpose of distinguishing cosmic and Galactic signals. Differential Microwave Radiometer (DMR) maps, with the modeled Galactic emission removed, are fitted for a quadrupole distribution. Autocorrelation functions for individual Galactic components are presented. When Galactic emission is removed from the DMR data, the residual fluctuations are virtually unaffected, and therefore they are not dominated by any known Galactic emission component. 42 refs.

Bennet, C.L.; Smoot, G.F.; Hinshaw, G.; Wright, E.L.; Kogut, A.; De Amici, G.; Meyer, S.S.; Weiss, R.; Wilkinson, D.T.; Gulkis, S. (NASA, Goddard Space Flight Center, Greenbelt, MD (United States) Lawrence Berkeley Laboratory, CA (United States) California, University, Berkeley (United States) Universities Space Research Association, Boulder, CO (United States) California, University, Los Angeles (United States) MIT, Cambridge, MA (United States) Princeton University, NJ (United States) JPL, Pasadena, Ca (United States))

1992-09-01T23:59:59.000Z

71

Calibration of a 32 channel electron cyclotron emission radiometer on the HL-2A tokamak  

SciTech Connect (OSTI)

A novel 32-channel electron cyclotron emission radiometer has been designed and tested for the measurement of electron temperature profiles on the HL-2A tokamak. This system is based on the intermediate frequency filter detection technique, and has the features of wide working frequency range and high spatial resolution. Two relative calibration methods have been investigated: sweeping the toroidal magnetic field and hopping the output frequency of the local oscillator. Preliminary results show that both methods can ensure reasonable profiles.

Shi, Z. B., E-mail: shizb@swip.ac.cn; Jiang, M.; Huang, X. L.; Zhong, W. L.; Chen, W.; Che, Y. L.; Liu, Z. T.; Ding, X. T.; Yang, Q. W.; Duan, X. R. [Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041 (China)] [Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041 (China)

2014-02-15T23:59:59.000Z

72

Using a cold radiometer to measure heat loads and survey heat leaks  

SciTech Connect (OSTI)

We have developed an inexpensive cold radiometer for use in thermal/vacuum chambers to measure heat loads, characterize emissivity and specularity of surfaces and to survey areas to evaluate stray heat loads. We report here the results of two such tests for the James Webb Space Telescope to measure heat loads and effective emissivities of 2 major pieces of optical ground support equipment that will be used in upcoming thermal vacuum testing of the Telescope.

DiPirro, M.; Tuttle, J.; Hait, T.; Shirron, P. [Cryogenics and Fluids Branch, NASA/Goddard Space Flight Center, Greenbelt MD 20771 (United States)

2014-01-29T23:59:59.000Z

73

Neutron reflecting supermirror structure  

DOE Patents [OSTI]

An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources.

Wood, James L. (Drayton Plains, MI)

1992-01-01T23:59:59.000Z

74

Neutron reflecting supermirror structure  

DOE Patents [OSTI]

An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources. 2 figs.

Wood, J.L.

1992-12-01T23:59:59.000Z

75

Development of multichannel intermediate frequency system for electron cyclotron emission radiometer on KSTAR Tokamak  

SciTech Connect (OSTI)

Plasma experiments on KSTAR are scheduled to start up this year (2008). We have developed an electron cyclotron emission (ECE) radiometer to measure the radial electron temperature profiles in KSTAR experiments. The radiometer system consists, briefly, of two downconversion stages, amplifiers, bandpass filter banks, and video detectors. These components are made commercially or developed in house. The system detects ECE power in the frequency range from 110 to 196 GHz, the detected signal being resolved by means of 48 frequency windows. Before installation of this system on KSTAR, we installed a part of this system on large helical device (LHD) to study the system under similar plasma conditions. In this experiment, the signal amplitude, considered to be proportional to the electron temperature, is measured. The time-dependent traces of the electron temperature measured by this radiometer are in good agreement with those provided by the LHD Michelson spectrometer. The system noise level which limits the minimum measurable temperature (converted to the electron temperature) is about 30 eV.

Kogi, Yuichiro; Sakoda, Takuya; Mase, Atsushi; Ito, Naoki; Yokota, Yuya [Art, Science and Technology Center for Cooperative Research, Kyushu University, Kasuga Fukuoka 816-8580 (Japan); Yamaguchi, Soichiro; Nagayama, Yoshio; Kawahata, Kazuo [National Institute for Fusion Science, Toki Gifu 509-5292 (Japan); Jeong, Seung H. [Korea Atomic Energy Research Institute, 1045 Daedeokdaero Daejeon (Korea, Republic of); Kwon, Myeun [National Fusion Research Institute, 113 Gwahangno Daejeon (Korea, Republic of)

2008-10-15T23:59:59.000Z

76

Relative Accuracy of 1-Minute and Daily Total Solar Radiation Data for 12 Global and 4 Direct Beam Solar Radiometers: Preprint  

SciTech Connect (OSTI)

This report evaluates the relative performance of 12 global and four direct beam solar radiometers deployed at a single site over a 12-month period. Test radiometer irradiances were compared with a reference irradiance consisting of either an absolute cavity radiometer (during calibrations) or a low uncertainty thermopile pyrheliometer (during the evaluation period) for pyrheliometers; and for pyranometers a reference global irradiance computed from the reference pyrheliometer and diffuse irradiance from a shaded pyranometer.

Myers, D. R.; Wilcox, S. M.

2009-03-01T23:59:59.000Z

77

OAK 270 - The use of Lidar/radiometer (LIRAD) in the ARM program to obtain optical properties and microphysics of high and midlevel clouds  

SciTech Connect (OSTI)

OAK 270 - The use of Lidar/Radiometer (LIRAD) in the ARM program to obtain optical properties and microphysics of high and midlevel clouds

C.M.R. Platt; R.T. Austin; S.A. Young; and G.L. Stephens

2002-12-13T23:59:59.000Z

78

Tandem resonator reflectance modulator  

DOE Patents [OSTI]

A wide band optical modulator is grown on a substrate as tandem Fabry-Perot resonators including three mirrors spaced by two cavities. The absorption of one cavity is changed relative to the absorption of the other cavity by an applied electric field, to cause a change in total reflected light, as light reflecting from the outer mirrors is in phase and light reflecting from the inner mirror is out of phase with light from the outer mirrors. 8 figs.

Fritz, I.J.; Wendt, J.R.

1994-09-06T23:59:59.000Z

79

Neutron reflecting supermirror structure  

DOE Patents [OSTI]

An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources. One layer of each set of bilayers consist of titanium, and the second layer of each set of bilayers consist of an alloy of nickel with carbon interstitially present in the nickel alloy.

Wood, James L. (Drayton Plains, MI)

1992-01-01T23:59:59.000Z

80

High spatial resolution upgrade of the electron cyclotron emission radiometer for the DIII-D tokamak  

SciTech Connect (OSTI)

The 40-channel DIII-D electron cyclotron emission (ECE) radiometer provides measurements of T{sub e}(r,t) at the tokamak midplane from optically thick, second harmonic X-mode emission over a frequency range of 83–130 GHz. The frequency spacing of the radiometer's channels results in a spatial resolution of ?1–3 cm, depending on local magnetic field and electron temperature. A new high resolution subsystem has been added to the DIII-D ECE radiometer to make sub-centimeter (0.6–0.8 cm) resolution T{sub e} measurements. The high resolution subsystem branches off from the regular channels’ IF bands and consists of a microwave switch to toggle between IF bands, a switched filter bank for frequency selectivity, an adjustable local oscillator and mixer for further frequency down-conversion, and a set of eight microwave filters in the 2–4 GHz range. Higher spatial resolution is achieved through the use of a narrower (200 MHz) filter bandwidth and closer spacing between the filters’ center frequencies (250 MHz). This configuration allows for full coverage of the 83–130 GHz frequency range in 2 GHz bands. Depending on the local magnetic field, this translates into a “zoomed-in” analysis of a ?2–4 cm radial region. Expected uses of these channels include mapping the spatial dependence of Alfven eigenmodes, geodesic acoustic modes, and externally applied magnetic perturbations. Initial T{sub e} measurements, which demonstrate that the desired resolution is achieved, are presented.

Truong, D. D., E-mail: dtruong@wisc.edu [Department of Engineering Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States); Austin, M. E. [Institute for Fusion Studies, University of Texas, Austin, Texas, 78712 (United States)

2014-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Macrocyclic polyaminocarboxylates for stable radiometal antibody conjugates for therapy, spect and pet imaging  

DOE Patents [OSTI]

A simple method for the synthesis of 1,4,7, 10-tetraazacyclododecane N,N'N",N'"-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N',N",N'"-tetraacetic acid involves cyanomethylating 1,4,7, 10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy.

Mease, Ronnie C. (Fairfax, VA); Mausner, Leonard F. (Stony Brook, NY); Srivastava, Suresh C. (Setauket, NY)

1997-06-17T23:59:59.000Z

82

Macrocyclic polyaminocarboxylates for stable radiometal antibody conjugates for therapy, SPECT and PET imaging  

DOE Patents [OSTI]

A simple method for the synthesis of 1,4,7, 10-tetraazacyclododecane N,N{prime}N{double_prime},N{prime}{double_prime}-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N{prime},N{double_prime},N{prime}{double_prime}-tetraacetic acid involves cyanomethylating 1,4,7,10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy. 4 figs.

Mease, R.C.; Mausner, L.F.; Srivastava, S.C.

1997-06-17T23:59:59.000Z

83

Multi-Spectral Pushbroom Imaging Radiometer (MPIR) for remote sensing studies  

SciTech Connect (OSTI)

A Multi-spectral Pushbroom Imaging Radiometer (MPIR) has been developed as a well-calibrated, imaging radiometer for studies of cloud properties from an unmanned aerospace vehicle platform. The instrument is designed to fly at altitudes up to 20 km and produce data from nine spectral detector modules. Each module has its own telescope optics, linear detector array, spectral filter, and necessary electronics. Cryogenic cooling for the long-wavelength infrared modules, as well as temperature regulation of the short- wavelength modules, is provided by a liquid nitrogen system designed to operate for multi-day missions. Pre- and post-flight calibration, combined with an on-board calibration chopper, provide an instrument with state-of-the-art radiometric measurement accuracies. Each module has a {+-}40{degree} across-track field-of-view and images a curved footprint onto its linear detector array. The long-wavelength array types have 256 detector elements while the short-wavelength arrays can have 512 elements. A modular design allows individual spectral bands to be changed to match the requirements for a particular mission.

Phipps, GS; Grotbeck, CL

1996-05-01T23:59:59.000Z

84

Multi Spectral Pushbroom Imaging Radiometer (MPIR) for remote sensing cloud studies  

SciTech Connect (OSTI)

A Multi Spectral Pushbroom Imaging Radiometer (MPIR) has been developed as are relatively inexpensive ({approximately}$IM/copy), well-calibrated,imaging radiometer for aircraft studies of cloud properties. The instrument is designed to fly on an Unmanned Aerospace Vehicle (UAV) platform at altitudes from the surface up to 20 km. MPIR is being developed to support the Unmanned Aerospace Vehicle portion of the Department of Energy`s Atmospheric Radiation Measurements program (ARM/UAV). Radiation-cloud interactions are the dominant uncertainty in the current General Circulation Models used for atmospheric climate studies. Reduction of this uncertainty is a top scientific priority of the US Global Change Research Program and the ARM program. While the DOE`s ARM program measures a num-ber of parameters from the ground-based Clouds and Radiation Testbed sites, it was recognized from the outset that other key parameters are best measured by sustained airborne data taking. These measurements are critical in our understanding of global change issues as well as for improved atmospheric and near space weather forecasting applications.

Phipps, G.S.; Grotbeck, C.L.

1995-10-01T23:59:59.000Z

85

Retrieval of Optical And Size Parameters of Aerosols Utilizing a Multi-Filter Rotating Shadowband Radiometer and Inter-Comparison with CIMEL Sun Photometer and  

E-Print Network [OSTI]

Radiometer and Inter-Comparison with CIMEL Sun Photometer and MICROTOPS Sun Photometer Antonio Aguirre Radiometer (MFRSR) and comparing with data from a CIMEL Sun Photometer and a MICROTOPS Sun Photometer. Using the inverse cosine of the angle between the sun and the vertical. A Langley plot provides a linear regression

86

3742 IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 47, NO. 11, NOVEMBER 2009 Microwave Radiometer Radio-Frequency  

E-Print Network [OSTI]

Radiometer Radio-Frequency Interference Detection Algorithms: A Comparative Study Sidharth Misra, Priscilla N is with Halliburton Energy Services, Houston, TX 77032 USA. J. R. Piepmeier is with the Microwave Instrument growth recently in satellite telecommunica- tion, in high-bandwidth point-to-point terrestrial wireless

Ruf, Christopher

87

Modification of the collective Thomson scattering radiometer in the search for parametric decay on TEXTOR  

SciTech Connect (OSTI)

Strong scattering of high-power millimeter waves at 140 GHz has been shown to take place in heating and current-drive experiments at TEXTOR when a tearing mode is present in the plasma. The scattering signal is at present supposed to be generated by the parametric decay instability. Here we describe the heterodyne detection system used to characterize the newly discovered signal measured at TEXTOR, and we present spectral shapes in which the signal can appear under different conditions. The radiation is collected by the receiver through a quasi-optical transmission line that is independent of the electron cyclotron resonance heating transmission line, and so the scattering geometry is variable. The signal is detected with 42 frequency channels ranging from 136 to 142 GHz. We demonstrate that the large signal does not originate from gyrotron spurious radiation. The measured signal agrees well with independent backscattering radiometer data.

Nielsen, S. K.; Salewski, M.; Korsholm, S. B.; Leipold, F.; Meo, F.; Michelsen, P.; Stejner, M. [Association EURATOM - DTU, Department of Physics, Technical University of Denmark, Risoe Campus, DK-4000 Roskilde (Denmark); Bongers, W.; Moseev, D.; Westerhof, E. [FOM Institute DIFFER, Dutch Institute for Fundamental Energy Research, Association EURATOM - FOM, Nieuwegein (Netherlands); Oosterbeek, J. W. [Department of Applied Physics, Science and Technology of Nuclear Fusion, Eindhoven University of Technology, NL-5600 MB Eindhoven (Netherlands)

2012-11-15T23:59:59.000Z

88

Millimeter-wave Radiometer for High Sensitivity Water Vapor Profiling in Arid Regions  

SciTech Connect (OSTI)

Abstract - ProSensing Inc. has developed a G-band (183 GHz) water Vapor Radiometer (GVR) for long-term, unattended measurements of low concentrations of atmospheric water vapor and liquid water. Precipitable water vapor and liquid water path are estimated from zenith brightness temperatures measured from four double-sideband receiver channels, centered at 183.31 1, 3 and 7, and 14 GHz. A prototype ground-based version of the instrument was deployed at the DOE ARM program?s North Slope of Alaska site near Barrow AK in April 2005, where it collected data continuously for one year. A compact, airborne version of this instrument, packaged to operate from a standard 2-D PMS probe canister, has been tested on the ground and is scheduled for test flights in the summer of 2006. This paper presents design details, laboratory test results and examples of retrieved precipitable water vapor and liquid water path from measured brightness temperature data.

Pazmany, Andrew

2006-11-09T23:59:59.000Z

89

Solar Irradiances Measured using SPN1 Radiometers: Uncertainties and Clues for Development  

SciTech Connect (OSTI)

The fast development of solar radiation and energy applications, such as photovoltaic and solar thermodynamic systems, has increased the need for solar radiation measurement and monitoring, not only for the global component but also the diffuse and direct. End users look for the best compromise between getting close to state-of-the-art measurements and keeping capital, maintenance and operating costs to a minimum. Among the existing commercial options, SPN1 is a relatively low cost solar radiometer that estimates global and diffuse solar irradiances from seven thermopile sensors under a shading mask and without moving parts. This work presents a comprehensive study of SPN1 accuracy and sources of uncertainty, which results from laboratory experiments, numerical modeling and comparison studies between measurements from this sensor and state-of-the art instruments for six diverse sites. Several clues are provided for improving the SPN1 accuracy and agreement with state-of-the-art measurements.

Badosa, Jordi; Wood, John; Blanc, Philippe; Long, Charles N.; Vuilleumier, Laurent; Demengel, Dominique; Haeffelin, Martial

2014-12-08T23:59:59.000Z

90

Informal Preliminary Report on Comparisons of Prototype SPN-1 Radiometer to PARSL Measurements  

SciTech Connect (OSTI)

The prototype SPN-1 has been taking measurements for several months collocated with our PNNL Atmospheric Remote Sensing Laboratory (PARSL) solar tracker mounted instruments at the Pacific Northwest National Laboratory (PNNL) located in Richland, Washington, USA. The PARSL radiometers used in the following comparisons consist of an Eppley Normal Incident Pyrheliometer (NIP) and a shaded Eppley model 8-48 “Black and White” pyrgeometer (B&W) to measure the direct and diffuse shortwave irradiance (SW), respectively. These instruments were calibrated in mid-September by comparison to an absolute cavity radiometer directly traceable to the world standard group in Davos, Switzerland. The NIP calibration was determined by direct comparison, while the B&W was calibrated using the shade/unshade technique. All PARSL data prior to mid-September have been reprocessed using the new calibration factors. The PARSL data are logged as 1-minute averages from 1-second samples. Data used in this report span the time period from June 22 through December 1, 2006. All data have been processed through the QCRad code (Long and Shi, 2006), which itself is a more elaborately developed methodology along the lines of that applied by the Baseline Surface Radiation Network (BSRN) Archive (Long and Dutton, 2004), for quality control. The SPN-1 data are the standard total and diffuse SW values obtained from the analog data port of the instrument. The comparisons use only times when both the PARSL and SPN-1 data passed all QC testing. The data were further processed and analyzed by application of the SW Flux Analysis methodology (Long and Ackerman, 2000; Long and Gaustad, 2004, Long et al., 2006) to detect periods of clear skies, calculate continuous estimates of clear-sky SW irradiance and the effect of clouds on the downwelling SW, and estimate fractional sky cover.

Long, Charles N.

2014-06-17T23:59:59.000Z

91

Introducing Fraunhofer Personal reflection  

E-Print Network [OSTI]

­ they are not part of the University. The Centres form an integral part of that country's innovation system while for Sustainable Energy Systems. The Fraunhofer model is certainly applicable to the UK (the Fraunhofer modelIntroducing Fraunhofer Personal reflection I have taken a keen interest in Fraunhofer Geselleschaft

Mottram, Nigel

92

Reflective optical imaging system  

DOE Patents [OSTI]

An optical system compatible with short wavelength (extreme ultraviolet) radiation comprising four reflective elements for projecting a mask image onto a substrate. The four optical elements are characterized in order from object to image as convex, concave, convex and concave mirrors. The optical system is particularly suited for step and scan lithography methods. The invention increases the slit dimensions associated with ringfield scanning optics, improves wafer throughput and allows higher semiconductor device density.

Shafer, David R. (Fairfield, CT)

2000-01-01T23:59:59.000Z

93

Comparison of Historical Satellite-Based Estimates of Solar Radiation Resources with Recent Rotating Shadowband Radiometer Measurements: Preprint  

SciTech Connect (OSTI)

The availability of rotating shadow band radiometer measurement data at several new stations provides an opportunity to compare historical satellite-based estimates of solar resources with measurements. We compare mean monthly daily total (MMDT) solar radiation data from eight years of NSRDB and 22 years of NASA hourly global horizontal and direct beam solar estimates with measured data from three stations, collected after the end of the available resource estimates.

Myers, D. R.

2009-03-01T23:59:59.000Z

94

A reactionless, bearingless linear shutter mechanism for the multispectral pushbroom imaging radiometer  

SciTech Connect (OSTI)

The Atmospheric Radiation Measurement Program is a multi-laboratory, interagency program as part of DOE`s principal entry into the US Global Change Research Program. Two issues addressed are the radiation budget and its spectral dependence, and radiative and other properties of clouds. Measures of solar flux divergence and energy exchanges between clouds, the earth, its oceans, and the atmosphere through various altitudes are sought. Additionally, the program seeks to provide measurements to calibrate satellite radiance products and validate their associated flux retrieval algorithms. Unmanned Aerospace Vehicles fly long, extended missions. MPIR is one of the primary instruments on the ARM-UAV campaigns. A shutter mechanism has been developed and flown as part of an airborne imaging radiometer having application to spacecraft or other applications requiring low vibration, high reliability, and long life. The device could be employed in other cases where a reciprocating platform is needed. Typical shutters and choppers utilize a spinning disc, or in very small instruments, a vibrating vane to continually interrupt incident light or radiation that enters the system. A spinning disk requires some sort of bearings that usually have limited life, and at a minimum introduce issues of reliability. Friction, lubrication and contamination always remain critical areas of concern, as well as the need for power to operate. Dual vibrating vanes may be dynamically well balanced as a set and are frictionless. However, these are limited by size in a practical sense. In addition, multiples of these devices are difficult to synchronize.

Krumel, L.J.

1996-12-31T23:59:59.000Z

95

Method to Calculate Uncertainty Estimate of Measuring Shortwave Solar Irradiance using Thermopile and Semiconductor Solar Radiometers  

SciTech Connect (OSTI)

The uncertainty of measuring solar irradiance is fundamentally important for solar energy and atmospheric science applications. Without an uncertainty statement, the quality of a result, model, or testing method cannot be quantified, the chain of traceability is broken, and confidence cannot be maintained in the measurement. Measurement results are incomplete and meaningless without a statement of the estimated uncertainty with traceability to the International System of Units (SI) or to another internationally recognized standard. This report explains how to use International Guidelines of Uncertainty in Measurement (GUM) to calculate such uncertainty. The report also shows that without appropriate corrections to solar measuring instruments (solar radiometers), the uncertainty of measuring shortwave solar irradiance can exceed 4% using present state-of-the-art pyranometers and 2.7% using present state-of-the-art pyrheliometers. Finally, the report demonstrates that by applying the appropriate corrections, uncertainties may be reduced by at least 50%. The uncertainties, with or without the appropriate corrections might not be compatible with the needs of solar energy and atmospheric science applications; yet, this report may shed some light on the sources of uncertainties and the means to reduce overall uncertainty in measuring solar irradiance.

Reda, I.

2011-07-01T23:59:59.000Z

96

The R/V Discoverer cruise to Manus Island. The BNL Portable Radiometer Package (PRP) evaluation  

SciTech Connect (OSTI)

Brookhaven National Laboratory installed and operated a Portable Radiation Package (PRP) on the NOAA ship R/V DISCOVERER as part of the Combined Sensor Program cruise in the Tropical Western Pacific Ocean. The DISCOVERER transported a collection of radiation and atmospheric instrumentation to positions offshore of manus Island to compare cloud and radiation fields to like instruments measured from a station on the island. The ship sailed NW from Pago Pago, American Samoa, on 14 March 1996 to a latitude of 1{degree}S then due West until it approached manus Island (2{degree}S and 148{degree}E) on approximately 7 April. The ship then turned SW and approached Manus Island in three steps. This route was reversed during the ship`s return to Hawaii. The PRP package is a compact low-power integration of simple sensors that measure long- and short-wave irradiance from moving platforms. A rapid rotating shadowband radiometer that is designed to provide good estimates of diffuse (sky) radiation even from moving buoys or ships was being evaluated. The PRP provided the only means of making diffuse (sky) radiation measurements from the ship. The CSP cruise provided an excellent opportunity to intercompare the PRP with other like instruments in the TWP locale. The unit was located on the starboard flying bridge which was fully exposed to direct sunlight during the ship`s westward transit. When the ship was at its closest approach to manus, the PRP was moved to the island where careful intercomparison with the Manus instrumentation was conducted.

Reynolds, R.M.; Smith, S.

1996-05-24T23:59:59.000Z

97

Variable area light reflecting assembly  

DOE Patents [OSTI]

Device for tracking daylight and projecting it into a building. The device tracks the sun and automatically adjusts both the orientation and area of the reflecting surface. The device may be mounted in either a wall or roof of a building. Additionally, multiple devices may be employed in a light shaft in a building, providing daylight to several different floors. The preferred embodiment employs a thin reflective film as the reflecting device. One edge of the reflective film is fixed, and the opposite end is attached to a spring-loaded take-up roller. As the sun moves across the sky, the take-up roller automatically adjusts the angle and surface area of the film. Additionally, louvers may be mounted at the light entrance to the device to reflect incoming daylight in an angle perpendicular to the device to provide maximum reflective capability when daylight enters the device at non-perpendicular angles.

Howard, Thomas C. (Raleigh, NC)

1986-01-01T23:59:59.000Z

98

Variable area light reflecting assembly  

DOE Patents [OSTI]

Device is described for tracking daylight and projecting it into a building. The device tracks the sun and automatically adjusts both the orientation and area of the reflecting surface. The device may be mounted in either a wall or roof of a building. Additionally, multiple devices may be employed in a light shaft in a building, providing daylight to several different floors. The preferred embodiment employs a thin reflective film as the reflecting device. One edge of the reflective film is fixed, and the opposite end is attached to a spring-loaded take-up roller. As the sun moves across the sky, the take-up roller automatically adjusts the angle and surface area of the film. Additionally, louvers may be mounted at the light entrance to the device to reflect incoming daylight in an angle perpendicular to the device to provide maximum reflective capability when daylight enters the device at non-perpendicular angles. 9 figs.

Howard, T.C.

1986-12-23T23:59:59.000Z

99

Results of First Outdoor Comparison Between Absolute Cavity Pyrgeometer (ACP) and Infrared Integrating Sphere (IRIS) Radiometer at PMOD (Presentation)  

SciTech Connect (OSTI)

The ACP and IRIS are developed to establish a world reference for calibrating pyrgeometers with traceability to SI units. The two radiometers are unwindowed with negligible spectral dependence, and traceable to SI units through the temperature scale (ITS-90). The first outdoor comparison between the two designs was held from January 28 to February 8, 2013 at the Physikalisch-Metorologisches Observatorium Davos (PMOD). The difference between the irradiance measured by ACP and that of IRIS was within 1 W/m2. A difference of 5 W/m2 was observed between the irradiance measured by ACP&IRIS and that of the interim World Infrared Standard Group (WISG).

Reda, I.; Grobner, J.; Wacker, S.; Stoffel, T.

2013-03-01T23:59:59.000Z

100

Synthesis of macrocyclic polyaminocarboxylates and their use for preparing stable radiometal antibody immunoconjugates for therapy, spect and pet imaging  

DOE Patents [OSTI]

A simple method for the synthesis of 1,4,7,10-tetraazacyclododecane N,N'N",N'"-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N',N",N'"-tetraacetic acid involves cyanomethylating 1,4,7,10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy.

Mease, Ronnie C. (Fairfax, VA); Mausner, Leonard F. (Stony Brook, NY); Srivastava, Suresh C. (Setauket, NY)

1995-06-27T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Synthesis of macrocyclic polyaminocarboxylates and their use for preparing stable radiometal antibody immunoconjugates for therapy, SPECT and PET imaging  

DOE Patents [OSTI]

A simple method for the synthesis of 1,4,7,10-tetraazacyclododecane N,N{prime}N{double_prime},N{prime}{double_prime}-tetraacetic acid and 1,4,8,11-tetraazacyclotetradecane N,N{prime},N{double_prime},N{prime}{double_prime}-tetraacetic acid involves cyanomethylating 1,4,7,10-tetraazacyclododecane or 1,4,8,11-tetraazacyclotetradecane to form a tetranitrile and hydrolyzing the tetranitrile. These macrocyclic compounds are functionalized through one of the carboxylates and then conjugated to various biological molecules including monoclonal antibodies. The resulting conjugated molecules are labeled with radiometals for SPECT and PET imaging and for radiotherapy. 4 figs.

Mease, R.C.; Mausner, L.F.; Srivastava, S.C.

1995-06-27T23:59:59.000Z

102

ARM - Midlatitude Continental Convective Clouds Microwave Radiometer Profiler (jensen-mwr)  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

A major component of the Mid-latitude Continental Convective Clouds Experiment (MC3E) field campaign was the deployment of an enhanced radiosonde array designed to capture the vertical profile of atmospheric state variables (pressure, temperature, humidity wind speed and wind direction) for the purpose of deriving the large-scale forcing for use in modeling studies. The radiosonde array included six sites (enhanced Central Facility [CF-1] plus five new sites) launching radiosondes at 3-6 hour sampling intervals. The network will cover an area of approximately (300)2 km2 with five outer sounding launch sites and one central launch location. The five outer sounding launch sites are: S01 Pratt, KS [ 37.7oN, 98.75oW]; S02 Chanute, KS [37.674, 95.488]; S03 Vici, Oklahoma [36.071, -99.204]; S04 Morris, Oklahoma [35.687, -95.856]; and S05 Purcell, Oklahoma [34.985, -97.522]. Soundings from the SGP Central Facility during MC3E can be retrieved from the regular ARM archive. During routine MC3E operations 4 radiosondes were launched from each of these sites (approx. 0130, 0730, 1330 and 1930 UTC). On days that were forecast to be convective up to four additional launches were launched at each site (approx. 0430, 1030, 1630, 2230 UTC). There were a total of approximately 14 of these high frequency launch days over the course of the experiment. These files contain brightness temperatures observed at Purcell during MC3E. The measurements were made with a 5 channel (22.235, 23.035, 23.835, 26.235, 30.000GHz) microwave radiometer at one minute intervals. The results have been separated into daily files and the day of observations is indicated in the file name. All observations were zenith pointing. Included in the files are the time variables base_time and time_offset. These follow the ARM time conventions. Base_time is the number seconds since January 1, 1970 at 00:00:00 for the first data point of the file and time_offset is the offset in seconds from base_time.

Jensen, Mike

103

ARM - Midlatitude Continental Convective Clouds Microwave Radiometer Profiler (jensen-mwr)  

SciTech Connect (OSTI)

A major component of the Mid-latitude Continental Convective Clouds Experiment (MC3E) field campaign was the deployment of an enhanced radiosonde array designed to capture the vertical profile of atmospheric state variables (pressure, temperature, humidity wind speed and wind direction) for the purpose of deriving the large-scale forcing for use in modeling studies. The radiosonde array included six sites (enhanced Central Facility [CF-1] plus five new sites) launching radiosondes at 3-6 hour sampling intervals. The network will cover an area of approximately (300)2 km2 with five outer sounding launch sites and one central launch location. The five outer sounding launch sites are: S01 Pratt, KS [ 37.7oN, 98.75oW]; S02 Chanute, KS [37.674, 95.488]; S03 Vici, Oklahoma [36.071, -99.204]; S04 Morris, Oklahoma [35.687, -95.856]; and S05 Purcell, Oklahoma [34.985, -97.522]. Soundings from the SGP Central Facility during MC3E can be retrieved from the regular ARM archive. During routine MC3E operations 4 radiosondes were launched from each of these sites (approx. 0130, 0730, 1330 and 1930 UTC). On days that were forecast to be convective up to four additional launches were launched at each site (approx. 0430, 1030, 1630, 2230 UTC). There were a total of approximately 14 of these high frequency launch days over the course of the experiment. These files contain brightness temperatures observed at Purcell during MC3E. The measurements were made with a 5 channel (22.235, 23.035, 23.835, 26.235, 30.000GHz) microwave radiometer at one minute intervals. The results have been separated into daily files and the day of observations is indicated in the file name. All observations were zenith pointing. Included in the files are the time variables base_time and time_offset. These follow the ARM time conventions. Base_time is the number seconds since January 1, 1970 at 00:00:00 for the first data point of the file and time_offset is the offset in seconds from base_time.

Jensen, Mike

2012-02-01T23:59:59.000Z

104

Failure and Redemption of Multifilter Rotating Shadowband Radiometer (MFRSR)/Normal Incidence Multifilter Radiometer (NIMFR) Cloud Screening: Contrasting Algorithm Performance at Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) and Southern Great Plains (SGP) Sites  

SciTech Connect (OSTI)

Well-known cloud-screening algorithms, which are designed to remove cloud-contaminated aerosol optical depths (AOD) from AOD measurements, have shown great performance at many middle-to-low latitude sites around the world. However, they may occasionally fail under challenging observational conditions, such as when the sun is low (near the horizon) or when optically thin clouds with small spatial inhomogeneity occur. Such conditions have been observed quite frequently at the high-latitude Atmospheric Radiation Measurement (ARM) North Slope of Alaska (NSA) sites. A slightly modified cloud-screening version of the standard algorithm is proposed here with a focus on the ARM-supported Multifilter Rotating Shadowband Radiometer (MFRSR) and Normal Incidence Multifilter Radiometer (NIMFR) data. The modified version uses approximately the same techniques as the standard algorithm, but it additionally examines the magnitude of the slant-path line of sight transmittance and eliminates points when the observed magnitude is below a specified threshold. Substantial improvement of the multi-year (1999-2012) aerosol product (AOD and its Angstrom exponent) is shown for the NSA sites when the modified version is applied. Moreover, this version reproduces the AOD product at the ARM Southern Great Plains (SGP) site, which was originally generated by the standard cloud-screening algorithms. The proposed minor modification is easy to implement and its application to existing and future cloud-screening algorithms can be particularly beneficial for challenging observational conditions.

Kassianov, Evgueni I.; Flynn, Connor J.; Koontz, Annette S.; Sivaraman, Chitra; Barnard, James C.

2013-09-11T23:59:59.000Z

105

Results of Second Outdoor Comparison Between Absolute Cavity Pyrgeometer (ACP) and Infrared Integrating Sphere (IRIS) Radiometer at PMOD (Presentation)  

SciTech Connect (OSTI)

The Absolute Cavity Pyrgeometer (ACP) and InfraRed Integrating Sphere radiometer (IRIS) are developed to establish a world reference for calibrating pyrgeometers with traceability to SI units. The two radiometers are un-windowed with negligible spectral dependence, and traceable to SI units through the temperature scale (ITS-90). The second outdoor comparison between the two designs was held from September 30 to October 11, 2013 at the Physikalisch-Metorologisches Observatorium Davos (PMOD). The difference between the irradiance measured by ACP and that of the IRIS was within 1 W/m2 (3 IRISs: PMOD + Australia + Germany). From the first and second comparisons, a difference of 4-6 W/m2 was observed between the irradiance measured by ACP&IRIS and that of the interim World Infrared Standard Group (WISG). This presentation includes results from the first and second comparison in an effort to establish the world reference for pyrgeometer calibrations, a key deliverable for the World Meteorological Organization (WMO), and the DOE-ASR.

Reda, I.; Grobner, J.; Wacker, S.

2014-01-01T23:59:59.000Z

106

An efficient strategy for the inversion of bidirectional reflectance models with satellite remote sensing data  

SciTech Connect (OSTI)

The angular distribution of radiation scattered by the earth surface contains information on the structural and optical properties of the surface. Potentially, this information may be retrieved through the inversion of surface bidirectional reflectance distribution function (BRDF) models. This report details the limitations and efficient application of BRDF model inversions using data from ground- and satellite-based sensors. A turbid medium BRDF model, based on the discrete ordinates solution to the transport equation, was used to quantify the sensitivity of top-of-canopy reflectance to vegetation and soil parameters. Results were used to define parameter sets for inversions. Using synthetic reflectance values, the invertibility of the model was investigated for different optimization algorithms, surface and sampling conditions. Inversions were also conducted with field data from a ground-based radiometer. First, a soil BRDF model was inverted for different soil and sampling conditions. A condition-invariant solution was determined and used as the lower boundary condition in canopy model inversions. Finally, a scheme was developed to improve the speed and accuracy of inversions.

Privette, J.L.

1994-12-31T23:59:59.000Z

107

Ultrasonic flowmetering with reflected pulses  

E-Print Network [OSTI]

A transit time type ultrasonic flowmeter was tested with two different reflected pulse trajectories in flowing air at ambient conditions against an orifice meter. The flowmeter was designed to be highly accurate, to require ...

Hoyle, David C.

1984-01-01T23:59:59.000Z

108

Low reflectance radio frequency load  

DOE Patents [OSTI]

A load for traveling microwave energy has an absorptive volume defined by cylindrical body enclosed by a first end cap and a second end cap. The first end cap has an aperture for the passage of an input waveguide with a rotating part that is coupled to a reflective mirror. The inner surfaces of the absorptive volume consist of a resistive material or are coated with a coating which absorbs a fraction of incident RF energy, and the remainder of the RF energy reflects. The angle of the reflector and end caps is selected such that reflected RF energy dissipates an increasing percentage of the remaining RF energy at each reflection, and the reflected RF energy which returns to the rotating mirror is directed to the back surface of the rotating reflector, and is not coupled to the input waveguide. Additionally, the reflector may have a surface which generates a more uniform power distribution function axially and laterally, to increase the power handling capability of the RF load. The input waveguide may be corrugated for HE11 mode input energy.

Ives, R. Lawrence; Mizuhara, Yosuke M

2014-04-01T23:59:59.000Z

109

Multiple reflection solar energy absorber  

SciTech Connect (OSTI)

A method of converting solar energy into heat energy thereby generating power is described comprising the steps: (a) focusing said solar energy by means of a primary concentrator, (b) concentrating said solar energy from said primary concentrator by means of a secondary concentrator located at the focal point of said primary concentrator, (c) slowing the flux of said solar energy from said secondary concentrator by means of a multiple reflection chamber attached to the rear aperture of the secondary concentrator, (d) circulating a working fluid by means of a working fluid delivery tube into said secondary concentrator and said multiple reflection chamber, (e) absorbing said solar energy into said working fluid by means of an ultra high concentration of said solar energy in said multiple reflection chamber, (f) insulating said working fluid by means of a surrounding thermal barrier, (g) exhausting the heat working fluid by means as of a nozzle joined to said multiple reflection chamber, (h) replacing said working fluid by means of a working fluid delivery tube, thereby completing a cycle for generating power.

Cooley, W.L.

1993-06-01T23:59:59.000Z

110

Reflections of Harry J. Longwell  

E-Print Network [OSTI]

Department and his organization's work environment reflected similar philosophies and work practices. In fact contribution in the area of #12;drilling technology. So strong, in fact, that the Well Control was named, I was recruited by one of the best companies in the world, Exxon. I have never forgotten that

Stephens, Jacqueline

111

Discharge lamp with reflective jacket  

DOE Patents [OSTI]

A discharge lamp includes an envelope, a fill which emits light when excited disposed in the envelope, a source of excitation power coupled to the fill to excite the fill and cause the fill to emit light, and a reflector disposed around the envelope and defining an opening, the reflector being configured to reflect some of the light emitted by the fill back into the fill while allowing some light to exit through the opening. The reflector may be made from a material having a similar thermal index of expansion as compared to the envelope and which is closely spaced to the envelope. The envelope material may be quartz and the reflector material may be either silica or alumina. The reflector may be formed as a jacket having a rigid structure which does not adhere to the envelope. The lamp may further include an optical clement spaced from the envelope and configured to reflect an unwanted component of light which exited the envelope back into the envelope through the opening in the reflector. Light which can be beneficially recaptured includes selected wavelength regions, a selected polarization, and selected angular components.

MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD); Kipling, Kent (Gaithersburg, MD)

2001-01-01T23:59:59.000Z

112

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS University of Tokyo Noda, Chiba 278-8510, Japan Abstract. Green functions called symbols. Generali* *zing this, we define Green functions associated to complex reflection

Shoj, Toshiaki

113

Reflectance Function Approximation for Material Classification  

E-Print Network [OSTI]

Reflectance Function Approximation for Material Classification Edward Wild CS 766 Final Project This report summarizes the results of a project to approximate reflectance functions and classify materials to classify materials. Classification algorithms are proposed to deal with unseen materials. Experimental

Dyer, Charles R.

114

Introduction Abstract reflection groups and abstract buildings  

E-Print Network [OSTI]

Introduction Abstract reflection groups and abstract buildings Their geometric realizations Compactly supported cohomology L2 -cohomology Cohomology of Coxeter groups and buildings Mike Davis (work groups and buildings #12;Introduction Abstract reflection groups and abstract buildings Their geometric

Vogtmann, Karen

115

Lensless X-Ray Imaging in Reflection  

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

Lensless X-Ray Imaging in Reflection Lensless X-Ray Imaging in Reflection Print Wednesday, 26 October 2011 00:00 The advent of x-ray free-electron laser (XFEL) light sources has...

116

Intermediate frequency band digitized high dynamic range radiometer system for plasma diagnostics and real-time Tokamak control  

SciTech Connect (OSTI)

An intermediate frequency (IF) band digitizing radiometer system in the 100-200 GHz frequency range has been developed for Tokamak diagnostics and control, and other fields of research which require a high flexibility in frequency resolution combined with a large bandwidth and the retrieval of the full wave information of the mm-wave signals under investigation. The system is based on directly digitizing the IF band after down conversion. The enabling technology consists of a fast multi-giga sample analog to digital converter that has recently become available. Field programmable gate arrays (FPGA) are implemented to accomplish versatile real-time data analysis. A prototype system has been developed and tested and its performance has been compared with conventional electron cyclotron emission (ECE) spectrometer systems. On the TEXTOR Tokamak a proof of principle shows that ECE, together with high power injected and scattered radiation, becomes amenable to measurement by this device. In particular, its capability to measure the phase of coherent signals in the spectrum offers important advantages in diagnostics and control. One case developed in detail employs the FPGA in real-time fast Fourier transform (FFT) and additional signal processing. The major benefit of such a FFT-based system is the real-time trade-off that can be made between frequency and time resolution. For ECE diagnostics this corresponds to a flexible spatial resolution in the plasma, with potential application in smart sensing of plasma instabilities such as the neoclassical tearing mode (NTM) and sawtooth instabilities. The flexible resolution would allow for the measurement of the full mode content of plasma instabilities contained within the system bandwidth.

Bongers, W. A.; Beveren, V. van; Westerhof, E.; Goede, A. P. H.; Krijger, B.; Berg, M. A. van den; Graswinckel, M. F.; Schueller, F. C. [FOM-Institute for Plasma Physics Rijnhuizen, Association EURATOM-FOM, Trilateral Euregio Cluster, PO Box 1207, 3430 BE Nieuwegein (Netherlands); Thoen, D. J. [Kavli Institute of Nanoscience, Delft University of Technology, Lorentzweg 1, 2628 CJ Delft (Netherlands); Nuij, P. J. W. M. [Eindhoven University of Technology, Control Systems Technology Group, and Applied Physics Department, PO Box 513, NL-5600 MB Eindhoven (Netherlands); Baar, M. R. de; Donne, A. J. H.; Hennen, B. A. [FOM-Institute for Plasma Physics Rijnhuizen, Association EURATOM-FOM, Trilateral Euregio Cluster, PO Box 1207, 3430 BE Nieuwegein (Netherlands); Eindhoven University of Technology, Control Systems Technology Group, and Applied Physics Department, PO Box 513, NL-5600 MB Eindhoven (Netherlands); Kantor, M. [FOM-Institute for Plasma Physics Rijnhuizen, Association EURATOM-FOM, Trilateral Euregio Cluster, PO Box 1207, 3430 BE Nieuwegein (Netherlands); Forschungszentrum Juelich GMBH, Institute of Energy and Climate research, Plasma Physics, Association EURATOM-FZJ, Trilateral Euregio Cluster, 52425 Juelich (Germany); Ioffe Institute, RAS, Saint-Petersburg, 195256 (Russian Federation)

2011-06-15T23:59:59.000Z

117

Spectral Reflectance of Silicon Photodiodes  

E-Print Network [OSTI]

Introduction Silicon photodiodes are among the most popular photodetectors that combine high performance over a wide wavelength range with unparalleled ease of use. High-quality photodiodes, in the form of a trap detector, 1,2 have many significant applications in precision radiometry. Their predictable responsivity in visible and near-infrared ~NIR! wavelengths allows the realization of high-accuracy spectral responsivity scales. 3,4 The spectral responsivity scales can be utilized in, for example, realization of luminous intensity 5,6 and spectral irradiance scales. 7,8 The spectral responsivity of a silicon photodiode is determined by the reflectance of the diode surface r~l! and the internal quantum deficiency d~l!. The values of d~l! and r~l! can be extrapolated 4 by mathematical models. To extrapolate the val

Atte Haapalinna; Petri Kärhä; Erkki Ikonen

118

Condenser optic with sacrificial reflective surface  

DOE Patents [OSTI]

Employing collector optics that have a sacrificial reflective surface can significantly prolong the useful life of the collector optics and the overall performance of the condenser in which the collector optics are incorporated. The collector optics are normally subject to erosion by debris from laser plasma source of radiation. The presence of an upper sacrificial reflective surface over the underlying reflective surface effectively increases the life of the optics while relaxing the constraints on the radiation source. Spatial and temporally varying reflectivity that results from the use of the sacrificial reflective surface can be accommodated by proper condenser design.

Tichenor, Daniel A.; Kubiak, Glenn D.; Lee, Sang Hun

2006-07-25T23:59:59.000Z

119

Condenser optic with sacrificial reflective surface  

DOE Patents [OSTI]

Employing collector optics that has a sacrificial reflective surface can significantly prolong the useful life of the collector optics and the overall performance of the condenser in which the collector optics are incorporated. The collector optics is normally subject to erosion by debris from laser plasma source of radiation. The presence of an upper sacrificial reflective surface over the underlying reflective surface effectively increases the life of the optics while relaxing the constraints on the radiation source. Spatial and temporally varying reflectivity that results from the use of the sacrificial reflective surface can be accommodated by proper condenser design.

Tichenor, Daniel A. (Castro Valley, CA); Kubiak, Glenn D. (Livermore, CA); Lee, Sung Hun (Sunnyvale, CA)

2007-07-03T23:59:59.000Z

120

Multiple-band reflective polarization converter using U-shaped metamaterial  

SciTech Connect (OSTI)

A multiple-band metamaterial reflective polarization converter (RPC) is proposed, which is composed of the dielectric substrate sandwiched with U-shaped metallic patterns and continuous metal film. The proposed U-shaped metamaterial RPC (UMM-RPC) can convert a linearly polarized wave to its cross polarized wave at the three resonant frequencies, which also can convert the linearly polarized wave to circularly polarized wave at other three resonant frequencies. Furthermore, the proposed UMM-RPC can maintain the same conversional direction at the three resonant frequencies when incident on a circularly polarized wave. The simulated and measured results are in agreement in the entire frequency range, and the polarization conversion ratio is over 90% for both linear and circular polarizations. The surface current distributions of the UMM-RPC are discussed to look into the physical mechanism. The proposed UMM-RPC has simple geometry but more operating frequency bands compared to the previous designs and can be used in applications such as antenna radome, remote sensors, and radiometer.

Huang, Xiaojun [College of Physical Science and Technology, Central China Normal University, Wuhan 430079 (China); Department of Physics, Kashgar Teachers College, Kashgar 844000 (China); Yang, Dong [College of Physics and Electronics Science, Hubei Normal University, Huangshi 435002 (China); Yang, Helin, E-mail: emyang@mail.ccnu.edu.cn [College of Physical Science and Technology, Central China Normal University, Wuhan 430079 (China)

2014-03-14T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Design of a Shadowband Spectral Radiometer for the Retrieval of Thin Cloud Optical Depth, Liquid Water Path, and the Effective Radius  

SciTech Connect (OSTI)

The design and operation of a Thin-Cloud Rotating Shadowband Radiometer (TCRSR) described here was used to measure the radiative intensity of the solar aureole and enable the simultaneous retrieval of cloud optical depth, drop effective radius, and liquid water path. The instrument consists of photodiode sensors positioned beneath two narrow metal bands that occult the sun by moving alternately from horizon to horizon. Measurements from the narrowband 415-nm channel were used to demonstrate a retrieval of the cloud properties of interest. With the proven operation of the relatively inexpensive TCRSR instrument, its usefulness for retrieving aerosol properties under cloud-free skies and for ship-based observations is discussed.

Bartholomew M. J.; Reynolds, R. M.; Vogelmann, A. M.; Min, Q.; Edwards, R.; Smith, S.

2011-11-01T23:59:59.000Z

122

MWRRET Value-Added Product: The Retrieval of Liquid Water Path and Precipitable Water Vapor from Microwave Radiometer (MWR) Data Sets (Revision 2)  

SciTech Connect (OSTI)

This report provides a short description of the Atmospheric Radiation Measurement (ARM) Climate Research Facility microwave radiometer (MWR) Retrieval (MWRRET) value-added product (VAP) algorithm. This algorithm utilizes a complementary physical retrieval method and applies brightness temperature offsets to reduce spurious liquid water path (LWP) bias in clear skies resulting in significantly improved precipitable water vapor (PWV) and LWP retrievals. We present a general overview of the technique, input parameters, output products, and describe data quality checks. A more complete discussion of the theory and results is given in Turner et al. (2007b).

Gaustad, KL; Turner, DD; McFarlane, SA

2011-07-25T23:59:59.000Z

123

Thermonuclear Reflect AB-Reactor  

E-Print Network [OSTI]

The author offers a new kind of thermonuclear reflect reactor. The remarkable feature of this new reactor is a three net AB reflector, which confines the high temperature plasma. The plasma loses part of its energy when it contacts with the net but this loss can be compensated by an additional permanent plasma heating. When the plasma is rarefied (has a small density), the heat flow to the AB reflector is not large and the temperature in the triple reflector net is lower than 2000 - 3000 K. This offered AB-reactor has significantly less power then the currently contemplated power reactors with magnetic or inertial confinement (hundreds-thousands of kW, not millions of kW). But it is enough for many vehicles and ships and particularly valuable for tunnelers, subs and space apparatus, where air to burn chemical fuel is at a premium or simply not available. The author has made a number of innovations in this reactor, researched its theory, developed methods of computation, made a sample computation of typical project. The main point of preference for the offered reactor is its likely cheapness as a power source. Key words: Micro-thermonuclear reactor, Multi-reflex AB-thermonuclear reactor, Self-magnetic AB-thermonuclear reactor, aerospace thermonuclear engine.

Alexander Bolonkin

2008-03-26T23:59:59.000Z

124

Using Radar, Lidar, and Radiometer measurements to Classify Cloud Type and Study Middle-Level Cloud Properties  

SciTech Connect (OSTI)

The project is mainly focused on the characterization of cloud macrophysical and microphysical properties, especially for mixed-phased clouds and middle level ice clouds by combining radar, lidar, and radiometer measurements available from the ACRF sites. First, an advanced mixed-phase cloud retrieval algorithm will be developed to cover all mixed-phase clouds observed at the ACRF NSA site. The algorithm will be applied to the ACRF NSA observations to generate a long-term arctic mixed-phase cloud product for model validations and arctic mixed-phase cloud processes studies. To improve the representation of arctic mixed-phase clouds in GCMs, an advanced understanding of mixed-phase cloud processes is needed. By combining retrieved mixed-phase cloud microphysical properties with in situ data and large-scale meteorological data, the project aim to better understand the generations of ice crystals in supercooled water clouds, the maintenance mechanisms of the arctic mixed-phase clouds, and their connections with large-scale dynamics. The project will try to develop a new retrieval algorithm to study more complex mixed-phase clouds observed at the ACRF SGP site. Compared with optically thin ice clouds, optically thick middle level ice clouds are less studied because of limited available tools. The project will develop a new two wavelength radar technique for optically thick ice cloud study at SGP site by combining the MMCR with the W-band radar measurements. With this new algorithm, the SGP site will have a better capability to study all ice clouds. Another area of the proposal is to generate long-term cloud type classification product for the multiple ACRF sites. The cloud type classification product will not only facilitates the generation of the integrated cloud product by applying different retrieval algorithms to different types of clouds operationally, but will also support other research to better understand cloud properties and to validate model simulations. The ultimate goal is to improve our cloud classification algorithm into a VAP.

Wang, Zhien

2010-06-29T23:59:59.000Z

125

Mach reflection of spherical detonation waves  

SciTech Connect (OSTI)

When two detonation waves collide, the shape of the wave front at their intersection can be used to categorize the flow as regular or irregular reflection. In the case of regular reflection, the intersection of the waves forms a cusp. In the case of irregular reflection, the cusp is replaced by a leading shock locus that bridges the incident waves. Many workers have studied irregular or Mach reflection of detonation waves, but most of the their experimental work has focused on the interaction of plane detonation waves. Reflection of spherical detonation waves has received less attention. This study also differs from previous work in that the focus is to measure the relationship between the detonation velocity and the local wave curvatue for irregular reflection of spherical detonation waves. Two explosives with different detonation properties, PBX 9501 and PBX 9502, are compared.

Hull, L.M.

1993-07-01T23:59:59.000Z

126

Photovoltaic module with light reflecting backskin  

DOE Patents [OSTI]

A photovoltaic module comprises electrically interconnected and mutually spaced photovoltaic cells that are encapsulated by a light-transmitting encapsulant between a light-transparent front cover and a back cover, with the back cover sheet being an ionomer/nylon alloy embossed with V-shaped grooves running in at least two directions and coated with a light reflecting medium so as to provide light-reflecting facets that are aligned with the spaces between adjacent cells and oriented so as to reflect light falling in those spaces back toward said transparent front cover for further internal reflection onto the solar cells, whereby substantially all of the reflected light will be internally reflected from said cover sheet back to the photovoltaic cells, thereby increasing the current output of the module. The internal reflector improves power output by as much as 67%.

Gonsiorawski, Ronald C. (Danvers, MA)

2007-07-03T23:59:59.000Z

127

Understanding teacher beliefs with reflective tools  

E-Print Network [OSTI]

Reflective Tools by Vanessa Ann Karwan Doctor of EducationLeadership by Vanessa Ann Karwan Committee in charge:Kathleen Cohn Copyright Vanessa Ann Karwan, 2009 All rights

Karwan, Vanessa Ann

2009-01-01T23:59:59.000Z

128

Phenomenological description of bidirectional surface reflection  

E-Print Network [OSTI]

Phenomenological description of bidirectional surface reflection Jan J. Koenderink and Andrea J satellites). In some cases one has (usually approximate, phenomenological) models, but in most cases one

O'Brien, James F.

129

Optimization Online - Constrained optimization in seismic reflection ...  

E-Print Network [OSTI]

Jul 7, 2004 ... Constrained optimization in seismic reflection tomography: an SQP augmented Lagrangian approach. F. Delbos (Frederic.Delbos ***at*** ifp.fr)

F. Delbos

2004-07-07T23:59:59.000Z

130

Travel Notes and Reflections from the Netherlands  

E-Print Network [OSTI]

and Reflections from the Netherlands by Jennifer Lynne Mustopopulated, country of the Netherlands. The express purposeficking Work in the Netherlands. ” The project explores

Lynne Musto, Jennifer

2009-01-01T23:59:59.000Z

131

Radiometer Calibration Trends  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 -the Mid-Infrared at 278, 298, and 323Program

132

MWRRET (Microwave Radiometer Retrievals)  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and InterfacesAdministration -Lowell L.FallU . S . D e pPlus Plus Andy

133

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS TOSHIAKI SHOJI Department of Mathematics Science University of Tokyo Noda, Chiba 278­8510, Japan Abstract. Green functions of classical groups this, we define Green functions associated to complex reflection groups G(e, 1, n), and study

Shoj, Toshiaki

134

Identification coding schemes for modulated reflectance systems  

DOE Patents [OSTI]

An identifying coding apparatus employing modulated reflectance technology involving a base station emitting a RF signal, with a tag, located remotely from the base station, and containing at least one antenna and predetermined other passive circuit components, receiving the RF signal and reflecting back to the base station a modulated signal indicative of characteristics related to the tag.

Coates, Don M. (Santa Fe, NM); Briles, Scott D. (Los Alamos, NM); Neagley, Daniel L. (Albuquerque, NM); Platts, David (Santa Fe, NM); Clark, David D. (Santa Fe, NM)

2006-08-22T23:59:59.000Z

135

Use of bitumen reflectance in hydrocarbon exploration  

SciTech Connect (OSTI)

Bitumen is a sensitive indicator of the thermal maturity of sedimentary rocks, particularly in carbonates and lower Paleozoic, where vitrinite is scarce. The optical properties of bitumen (at 546 nm) follow trends similar to those of vitrinite with increasing maturity. However, the following differences exist: (1) bitumen has lower reflectance than vitrinite up to the onset of oil generation, as determined by vitrinite reflectance; (2) reflectance of bitumen follows a higher trend than that of vitrinite at an R{sub 0} level of 1.0% (peak of oil generation). Bitumen reflectance can be converted to vitrinite reflectance using Jacob's formula. In lower Paleozoic rocks (Ordovician and older) bitumen can be used as a thermal indicator for determining the level of maturity with increasing burial depth. There are, however, complexities in the above application because of differentiation between reservoir-migrated and primary bitumen.

Goodarzi, F.; Gentzis, T. (Geological Survey of Canada, Calgary, Alberta)

1989-09-01T23:59:59.000Z

136

CSC418 / CSCD18 / CSC2504 Basic Lighting and Reflection 8 Basic Lighting and Reflection  

E-Print Network [OSTI]

CSC418 / CSCD18 / CSC2504 Basic Lighting and Reflection 8 Basic Lighting and Reflection Up things, on the lighting that illuminates the scene, and on the interaction of light with the objects in the scene. Some of the basic qualitative properties of lighting and object reflectance that we need

Toronto, University of

137

E-Print Network 3.0 - aqua modis reflectance Sample Search Results  

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

board both Terra and Aqua, MISR on Terra, POLDER on ADEOS, OMI on Aura, GLAS carried on Ice... SpectroRadiometer) on board Terra launched in 1999, and MODIS aboard Aqua launched...

138

Photovoltaic converter having apertured reflective enclosure  

SciTech Connect (OSTI)

This patent describes a photovoltaic converter. It comprises: a photovoltaic cell having an incident face upon which light is directed to cause photogeneration; an enclosure over the incident face, the wall of the enclosure having a reflective inner surface spaced apart from the incident face to permit light reflected from the incident face to be re-reflected by the inner surface and back to the photovoltaic cell; and an aperture through the wall of the enclosure to permit light to fall directly upon the voltaic cell. The ratio of the area of the aperture to the are of the incident face of the photovoltaic cell is less than about 0.2.

Sinton, R.A.; Swanson, R.M.

1990-10-02T23:59:59.000Z

139

MACDONALD FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

MACDONALD FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS. A generalization of Macdonald o* *perators is also constructed, and we characterize such functions by making use of * *Macdonald operators, assuming a certain conjecture

Shoj, Toshiaki

140

MACDONALD FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

MACDONALD FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS TOSHIAKI SHOJI Department version of the above Hall-Littlewood functions, as a generalization of Macdonald functions associated to symmetric groups. A generalization of Macdonald operators is also constructed, and we characterize

Shoj, Toshiaki

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


141

Preparing reflective substrate surfaces for laser treatment  

DOE Patents [OSTI]

A coating of either copper oxide or felt tip pen ink is used on reflective copper or gold substrates to enhance laser beam coupling when the substrates are cut or welded with a laser.

Flick, F.F.

1984-11-21T23:59:59.000Z

142

Effective Field Theory for Bound State Reflection  

E-Print Network [OSTI]

Elastic quantum bound-state reflection from a hard-wall boundary provides direct information regarding the structure and compressibility of quantum bound states. We discuss elastic quantum bound-state reflection and derive a general theory for elastic reflection of shallow dimers from hard-wall surfaces using effective field theory. We show that there is a small expansion parameter for analytic calculations of the reflection scattering length. We present a calculation up to second order in the effective Hamiltonian in one, two, and three dimensions. We also provide numerical lattice results for all three cases as a comparison with our effective field theory results. Finally, we provide an analysis of the compressibility of the alpha particle confined to a cubic lattice with vanishing Dirichlet boundaries.

Michelle Pine; Dean Lee

2013-01-17T23:59:59.000Z

143

Lensless X-Ray Imaging in Reflection  

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

X-Ray Imaging in Reflection Print The advent of x-ray free-electron laser (XFEL) light sources has led to an outburst of research activities in the field of lensless imaging. XFELs...

144

Lensless X-Ray Imaging in Reflection  

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

X-Ray Imaging in Reflection Print Wednesday, 26 October 2011 00:00 The advent of x-ray free-electron laser (XFEL) light sources has led to an outburst of research activities...

145

Frustrated total internal reflection acoustic field sensor  

DOE Patents [OSTI]

A frustrated total internal reflection acoustic field sensor which allows the acquisition of the acoustic field over an entire plane, all at once. The sensor finds use in acoustic holography and acoustic diffraction tomography. For example, the sensor may be produced by a transparent plate with transparent support members tall enough to support one or more flexible membranes at an appropriate height for frustrated total internal reflection to occur. An acoustic wave causes the membrane to deflect away from its quiescent position and thus changes the amount of light that tunnels through the gap formed by the support members and into the membrane, and so changes the amount of light reflected by the membrane. The sensor(s) is illuminated by a uniform tight field, and the reflection from the sensor yields acoustic wave amplitude and phase information which can be picked up electronically or otherwise.

Kallman, Jeffrey S. (Pleasanton, CA)

2000-01-01T23:59:59.000Z

146

Lamp method and apparatus using multiple reflections  

DOE Patents [OSTI]

A method wherein the light in a sulfur or selenium lamp is reflected through the fill a multiplicity of times to convert ultraviolet radiation to visible is disclosed. A light emitting device comprised of an electrodeless envelope which bears a light reflecting covering around a first portion which does not crack due to differential thermal expansion and which has a second portion which comprises a light transmissive aperture. 20 figs.

MacLennan, D.A.; Turner, B.; Kipling, K.

1999-05-11T23:59:59.000Z

147

Lamp method and apparatus using multiple reflections  

DOE Patents [OSTI]

A method wherein the light in a sulfur or selenium lamp is reflected through the fill a multiplicity of times to convert ultraviolet radiation to visible. A light emitting device comprised of an electrodeless envelope which bears a light reflecting covering around a first portion which does not crack due to differential thermal expansion and which has a second portion which comprises a light transmissive aperture.

MacLennan, Donald A. (Butler, PA); Turner, Brian (Damascus, MD); Kipling, Kent (Gaithersburg, MD)

1999-01-01T23:59:59.000Z

148

Optical Reflectance Measurements for Commonly Used Reflectors  

SciTech Connect (OSTI)

When simulating light collection in scintillators, modeling the angular distribution of optical light reflectance from surfaces is very important. Since light reflectance is poorly understood, either purely specular or purely diffuse reflectance is generally assumed. In this paper we measure the optical reflectance distribution for eleven commonly used reflectors. A 440 nm, output power stabilized, un-polarized laser is shone onto a reflector at a fixed angle of incidence. The reflected light's angular distribution is measured by an array of silicon photodiodes. The photodiodes are movable to cover 2 pi of solid angle. The light-induced current is, through a multiplexer, read out with a digital multimeter. A LabVIEW program controls the motion of the laser and the photodiode array, the multiplexer, and the data collection. The laser can be positioned at any angle with a position accuracy of 10 arc minutes. Each photodiode subtends 6.3o, and the photodiode array can be positioned at any angle with up to 10 arc minute angular resolution. The dynamic range for the current measurements is 105:1. The measured light reflectance distribution was measured to be specular for several ESR films as well as for aluminum foil, mostly diffuse for polytetrafluoroethylene (PTFE) tape and titanium dioxide paint, and neither specular nor diffuse for Lumirror(R), Melinex(R) and Tyvek(R). Instead, a more complicated light distribution was measured for these three materials.

Janecek, Petr Martin; Moses, William

2008-06-11T23:59:59.000Z

149

REFLECT: A computer program for the x-ray reflectivity of bent perfect crystals  

SciTech Connect (OSTI)

The design of monochromators for x-ray applications, using either standard laboratory sources on synchrotron radiation sources, requires a knowledge of the reflectivity of the crystals. The reflectivity depends on the crystals used, the geometry of the reflection, the energy range of the radiation, and, in the present case, the cylindrical bending radius of the optical device. This report is intended to allow the reader to become familiar with, and therefore use, a computer program called REFLECT which we have used in the design of a dual beam Laue monochromator for synchrotron angiography. The results of REFLECT have been compared to measured reflectivities for both bent Bragg and Laue geometries. The results are excellent and should give full confidence in the use of the program. 6 refs.

Etelaeniemi, V.; Suortti, P.; Thomlinson, W. (Helsinki Univ. (Finland). Dept. of Physics; Brookhaven National Lab., Upton, NY (USA))

1989-09-01T23:59:59.000Z

150

Method of making reflecting film reflector  

DOE Patents [OSTI]

A reflector of the reflecting film type is disclosed and which may be used in a heliostatic system for concentrating solar energy and comprising a reflecting film bonded to an appropriate rigid substrate in such a way that specularity of a very high order is achieved. A method of bonding the reflecting film to the substrate is also disclosed and comprises the steps of initially adhering the film to a smooth, clean flat rigid surface with a non-bonding liquid between the rigid surface and film, and then bonding the substrate and film. The non-bonding liquid has a molecular adhesion greater than any stresses due to handling or curing of the bonding agent which is applied between the film and the opposing surface of the rigid substrate.

Cottingham, James G. (Center Moriches, NY)

1980-01-01T23:59:59.000Z

151

Pigments which reflect infrared radiation from fire  

DOE Patents [OSTI]

Conventional paints transmit or absorb most of the intense infrared (IR) radiation emitted by fire, causing them to contribute to the spread of fire. The present invention comprises a fire retardant paint additive that reflects the thermal IR radiation emitted by fire in the 1 to 20 micrometer ({micro}m) wavelength range. The important spectral ranges for fire control are typically about 1 to about 8 {micro}m or, for cool smoky fires, about 2 {micro}m to about 16 {micro}m. The improved inventive coatings reflect adverse electromagnetic energy and slow the spread of fire. Specific IR reflective pigments include titanium dioxide (rutile) and red iron oxide pigments with diameters of about 1 {micro}m to about 2 {micro}m and thin leafing aluminum flake pigments. 4 figs.

Berdahl, P.H.

1998-09-22T23:59:59.000Z

152

Pigments which reflect infrared radiation from fire  

DOE Patents [OSTI]

Conventional paints transmit or absorb most of the intense infrared (IR) radiation emitted by fire, causing them to contribute to the spread of fire. The present invention comprises a fire retardant paint additive that reflects the thermal IR radiation emitted by fire in the 1 to 20 micrometer (.mu.m) wavelength range. The important spectral ranges for fire control are typically about 1 to about 8 .mu.m or, for cool smoky fires, about 2 .mu.m to about 16 .mu.m. The improved inventive coatings reflect adverse electromagnetic energy and slow the spread of fire. Specific IR reflective pigments include titanium dioxide (rutile) and red iron oxide pigments with diameters of about 1 .mu.m to about 2 .mu.m and thin leafing aluminum flake pigments.

Berdahl, Paul H. (Oakland, CA)

1998-01-01T23:59:59.000Z

153

X-ray induced optical reflectivity  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

The change in optical reflectivity induced by intense x-ray pulses can now be used to study ultrafast many body responses in solids in the femtosecond time domain. X-ray absorption creates photoelectrons and core level holes subsequently filled by Auger or fluorescence processes, and these excitations ultimately add conduction and valence band carriers that perturb optical reflectivity.Optical absorption associated with band filling and band gap narrowing is shown to explain the basic features found in recent measurements on an insulator (silicon nitride, Si3N4), a semiconductor(gallium arsenide,GaAs), and a metal (gold,Au), obtained with ?100 fs x-ray pulses at 500-2000 eV and probed with 800 nm laser pulses. In particular GaAs exhibits an abrupt drop in reflectivity, persisting only for a time comparable to the x-ray excitation pulse duration, consistent with prompt band gap narrowing.

Durbin, Stephen M.

2012-01-01T23:59:59.000Z

154

Reflection technique for thermal mapping of semiconductors  

DOE Patents [OSTI]

Semiconductors may be optically tested for their temperatures by illuminating them with tunable monochromatic electromagnetic radiation and observing the light reflected off of them. A transition point will occur when the wavelength of the light corresponds with the actual band gap energy of the semiconductor. At the transition point, the image of the semiconductor will appreciably darken as the light is transmitted through it, rather than being reflected off of it. The wavelength of the light at the transition point corresponds to the actual band gap energy and the actual temperature of the semiconductor.

Walter, Martin J. (Lee, NY)

1989-06-20T23:59:59.000Z

155

Emergence of exponentially small reflected waves  

E-Print Network [OSTI]

We study the time-dependent scattering of a quantum mechanical wave packet at a barrier for energies larger than the barrier height, in the semi-classical regime. More precisely, we are interested in the leading order of the exponentially small scattered part of the wave packet in the semiclassical parameter when the energy density of the incident wave is sharply peaked around some value. We prove that this reflected part has, to leading order, a Gaussian shape centered on the classical trajectory for all times soon after its birth time. We give explicit formulas and rigorous error bounds for the reflected wave for all of these times.

Volker Betz; Alain Joye; Stefan Teufel

2008-04-23T23:59:59.000Z

156

Metasurfaces for suppressing reflection over broadband  

E-Print Network [OSTI]

Surfaces patterned with arrays of quasi-periodic air holes having conical depth profile have been studied for their effectiveness in suppressing air-substrate reflection in the wavelength range of 450-1350 nm (limited by our measurement). The role of quasi-periodic air-hole pattern, depth of holes and launch angle on the observed antireflection behavior are investigated. The average optical transmittance of the patterned quartz substrate at near normal incidence is more than 97% and reflectance is less than 2%. Patterned quartz surfaces with 450 nm thin graded rarefaction region maintain the antireflective property up to 30{\\deg} (limited by our measurements) angle of incidence.

Patra, Anuradha; Nagarajan, Arvind; Achanta, Venu Gopal

2015-01-01T23:59:59.000Z

157

ADVANCED REFLECTIVE FILMS AND PANELS FOR NEXT GENERATION SOLAR...  

Office of Environmental Management (EM)

ADVANCED REFLECTIVE FILMS AND PANELS FOR NEXT GENERATION SOLAR COLLECTORS ADVANCED REFLECTIVE FILMS AND PANELS FOR NEXT GENERATION SOLAR COLLECTORS This presentation was delivered...

158

Characterization of the plastic substrates, the reflective layers...  

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

the plastic substrates, the reflective layers, the adhesives, and the grooves of today's archival-grade Characterization of the plastic substrates, the reflective layers, the...

159

Constrained optimization in seismic reflection tomography: an SQP ...  

E-Print Network [OSTI]

Seismic reflection tomography is a method for determining a subsurface velocity model from the traveltimes of seismic waves reflecting on geological interfaces.

2004-07-06T23:59:59.000Z

160

Research Needs: Glass Solar Reflectance and Vinyl Siding  

E-Print Network [OSTI]

properties of reflected solar radiation from glass surfaces,transfer at the siding surface. Direct solar radiation tosiding, reflected solar radiation from nearby surfaces,

Hart, Robert

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Multi-reflective acoustic wave device  

DOE Patents [OSTI]

An acoustic wave device, which utilizes multiple localized reflections of acoustic wave for achieving an infinite impulse response while maintaining high tolerance for dampening effects, is disclosed. The device utilized a plurality of electromechanically significant electrodes disposed on most of the active surface. A plurality of sensors utilizing the disclosed acoustic wave mode device are also described.

Andle, Jeffrey C.

2006-02-21T23:59:59.000Z

162

Electrochromic window with high reflectivity modulation  

DOE Patents [OSTI]

A multi-layered, active, thin film, solid-state electrochromic device having a high reflectivity in the near infrared in a colored state, a high reflectivity and transmissivity modulation when switching between colored and bleached states, a low absorptivity in the near infrared, and fast switching times, and methods for its manufacture and switching are provided. In one embodiment, a multi-layered device comprising a first indium tin oxide transparent electronic conductor, a transparent ion blocking layer, a tungsten oxide electrochromic anode, a lithium ion conducting-electrically resistive electrolyte, a complimentary lithium mixed metal oxide electrochromic cathode, a transparent ohmic contact layer, a second indium oxide transparent electronic conductor, and a silicon nitride encapsulant is provided. Through elimination of optional intermediate layers, simplified device designs are provided as alternative embodiments. Typical colored-state reflectivity of the multi-layered device is greater than 50% in the near infrared, bleached-state reflectivity is less than 40% in the visible, bleached-state transmissivity is greater than 60% in the near infrared and greater than 40% in the visible, and spectral absorbance is less than 50% in the range from 0.65-2.5 .mu.m.

Goldner, Ronald B. (Lexington, MA); Gerouki, Alexandra (Medford, MA); Liu, Te-Yang (Arlington, MA); Goldner, Mark A. (Cambridge, MA); Haas, Terry E. (Southborough, MA)

2000-01-01T23:59:59.000Z

163

Deep reflection-mode photoacoustic imaging of  

E-Print Network [OSTI]

near-infrared laser pulses of 804-nm wavelength for PA excitation to achieve deep penetration-frequency PAM system. To achieve deep penetration of light, we chose the 804-nm near-infrared wavelengthDeep reflection-mode photoacoustic imaging of biological tissue Kwang Hyun Song and Lihong V. Wang

Wang, Lihong

164

Static corrections from shallow-reflection surveys  

E-Print Network [OSTI]

of unconsolidated materials can be substantially less than the velocity of sound in air. Weathered-layer thickness variation of 1 m in these low-velocity materials could result in a static anomaly in excess of 3 ms. Shallow-reflection data from the Texas panhandle...

Steeples, Don W.; Miller, Richard D.; Black, Ross A.

1990-06-01T23:59:59.000Z

165

Reflections of Edmond J. Langhetee, Jr.  

E-Print Network [OSTI]

Reflections of Edmond J. Langhetee, Jr. My education at Louisiana State University began in March, wondering whether I should reconsider my decision to enter petroleum engineering. Nuclear energy in its most, I was able to handle these and many other projects because of my educational background

Stephens, Jacqueline

166

14. Reflections on Legality Michael Caie  

E-Print Network [OSTI]

14. Reflections on Legality Michael Caie 85. The Primacy of Law -We have seen that, on Bennett, and in order to get from one event to the occurrence of another we need, as Bennett puts it, " `the cement. -Bennett claims to have little sympathy for this account, and levels three objections against it

Fitelson, Branden

167

Visibility with Multiple Reflections Boris Aronov 1  

E-Print Network [OSTI]

â?? 1. A lower bound of \\Omega\\Gamma/ n=k \\Gamma \\Theta(1)) 2k ) is also established which matches to geometric optics, so that not only the issue of direct (straight­line) visibility, but also of visibility with reflection naturally occur here. Indeed, there is a large literature on geometric optics (such as [24, 12, 5

Dey, Tamal Krishna

168

Tir (Aster) Geothermal Anomalies | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to:Seadov Pty LtdSteen,Ltd Jump JumpAl., 1978)TillmanMunicipal Electric Util Jump to:Tir

169

Amartya Sen: Reflections on Theory in the Social Sciences  

E-Print Network [OSTI]

Amartya Sen: Reflections on Theory in the Social Scienceswelcomes Nobel Laureate Amartya Sen, Lamont University

Kreisler, Harry

2005-01-01T23:59:59.000Z

170

Catheter based mid-infrared reflectance and reflectance generated absorption spectroscopy  

DOE Patents [OSTI]

A method of characterizing conditions in a tissue, by (a) providing a catheter that has a light source that emits light in selected wavenumbers within the range of mid-IR spectrum; (b) directing the light from the catheter to an area of tissue at a location inside a blood vessel of a subject; (c) collecting light reflected from the location and generating a reflectance spectra; and (d) comparing the reflectance spectra to a reference spectra of normal tissue, whereby a location having an increased number of absorbance peaks at said selected wavenumbers indicates a tissue inside the blood vessel containing a physiological marker for atherosclerosis.

Holman, Hoi-Ying N

2013-10-29T23:59:59.000Z

171

Reflections on Cambridge: Reflections on Isaac Newton, discovery and Cambridge - with apple tree  

E-Print Network [OSTI]

Reflections about the life and effects of Isaac Newton in Cambridge, filmed outside Trinity College, with the descendant of his apple tree behind (and the rooms where he lived and worked). Filmed by Xu Bei in 2009....

Macfarlane, Alan

172

X-ray reflectivity and surface roughness  

SciTech Connect (OSTI)

Since the advent of high brightness synchrotron radiation sources there has been a phenomenal growth in the use of x-rays as a probe of surface structure. The technique of x-ray reflectivity is particularly relevant to electrochemists since it is capable of probing the structure normal to an electrode surface in situ. In this paper the theoretical framework for x-ray reflectivity is reviewed and the results from previous non-electrochemistry measurements are summarized. These measurements are from the liquid/air interface (CCl/sub 4/), the metal crystal vacuum interface (Au(100)), and from the liquid/solid interface(liquid crystal/silicon). 34 refs., 5 figs.

Ocko, B.M.

1988-01-01T23:59:59.000Z

173

Method for producing highly reflective metal surfaces  

DOE Patents [OSTI]

The invention is a novel method for producing mirror surfaces which are extremely smooth and which have high optical reflectivity. The method includes depositing, by electrolysis, an amorphous layer of nickel on an article and then diamond-machining the resulting nickel surface to increase its smoothness and reflectivity. The machined nickel surface then is passivated with respect to the formation of bonds with electrodeposited nickel. Nickel then is electrodeposited on the passivated surface to form a layer of electroplated nickel whose inside surface is a replica of the passivated surface. The mandrel then may be-re-passivated and provided with a layer of electrodeposited nickel, which is then recovered from the mandrel providing a second replica. The mandrel can be so re-used to provide many such replicas. As compared with producing each mirror-finished article by plating and diamond-machining, the new method is faster and less expensive.

Arnold, J.B.; Steger, P.J.; Wright, R.R.

1982-03-04T23:59:59.000Z

174

EXPERIMENT #3 REFLECTANCE SPECTROSCOPY We will use the reflectance attachment and fiber optics OceanOptics spectrophotometer to  

E-Print Network [OSTI]

EXPERIMENT #3 REFLECTANCE SPECTROSCOPY We will use the reflectance attachment and fiber optics OceanOptics spectrophotometer to measure the reflectance spectrum of several paint samples in the special optically flat-bottomed cell so that the bottom is completely covered. Scan the reflectance

Nazarenko, Alexander

175

Reflective optical imaging method and circuit  

DOE Patents [OSTI]

An optical system compatible with short wavelength (extreme ultraviolet) radiation comprising four reflective elements for projecting a mask image onto a substrate. The four optical elements are characterized in order from object to image as convex, concave, convex and concave mirrors. The optical system is particularly suited for step and scan lithography methods. The invention increases the slit dimensions associated with ringfield scanning optics, improves wafer throughput and allows higher semiconductor device density.

Shafer, David R. (Fairfield, CT)

2001-01-01T23:59:59.000Z

176

Photodetachment of H$^{-}$ near a partial reflecting surface  

E-Print Network [OSTI]

Theoretical and interpretative study on the subject of photodetachment of H$^{-}$ near a partial reflecting surface is presented, and the absorption effect of the surface is investigated on the total and differential cross sections using a theoretical imaging method. To understand the absorption effect, a reflection parameter $K$ is introduced as a multiplicative factor to the outgoing detached-electron wave of H$^-$ propagating toward the wall. The reflection parameter measures, how much electron wave would reflect from the surface; K=0 corresponds to no reflection and K=1 corresponds to the total reflection.

A. Afaq

2007-05-10T23:59:59.000Z

177

Reflective echo tomographic imaging using acoustic beams  

DOE Patents [OSTI]

An inspection system includes a plurality of acoustic beamformers, where each of the plurality of acoustic beamformers including a plurality of acoustic transmitter elements. The system also includes at least one controller configured for causing each of the plurality of acoustic beamformers to generate an acoustic beam directed to a point in a volume of interest during a first time. Based on a reflected wave intensity detected at a plurality of acoustic receiver elements, an image of the volume of interest can be generated.

Kisner, Roger; Santos-Villalobos, Hector J

2014-11-25T23:59:59.000Z

178

Reflective optical imaging systems with balanced distortion  

DOE Patents [OSTI]

Optical systems compatible with extreme ultraviolet radiation comprising four reflective elements for projecting a mask image onto a substrate are described. The four optical elements comprise, in order from object to image, convex, concave, convex and concave mirrors. The optical systems are particularly suited for step and scan lithography methods. The invention enables the use of larger slit dimensions associated with ring field scanning optics, improves wafer throughput, and allows higher semiconductor device density. The inventive optical systems are characterized by reduced dynamic distortion because the static distortion is balanced across the slit width.

Hudyma, Russell M. (San Ramon, CA)

2001-01-01T23:59:59.000Z

179

Reflective optical imaging system with balanced distortion  

DOE Patents [OSTI]

An optical system compatible with short wavelength (extreme ultraviolet) An optical system compatible with short wavelength (extreme ultraviolet) radiation comprising four reflective elements for projecting a mask image onto a substrate. The four optical elements comprise, in order from object to image, convex, concave, convex and concave mirrors. The optical system is particularly suited for step and scan lithography methods. The invention enables the use of larger slit dimensions associated with ring field scanning optics, improves wafer throughput and allows higher semiconductor device density. The inventive optical system is characterized by reduced dynamic distortion because the static distortion is balanced across the slit width.

Chapman, Henry N. (Sunol, CA); Hudyma, Russell M. (San Ramon, CA); Shafer, David R. (Fairfield, CT); Sweeney, Donald W. (San Ramon, CA)

1999-01-01T23:59:59.000Z

180

Using Radar, Lidar and Radiometer Data from NSA and SHEBA to Quantify Cloud Property Effects on the Surface Heat Budget in the Arctic  

SciTech Connect (OSTI)

Cloud and radiation data from two distinctly different Arctic areas are analyzed to study the differences between coastal Alaskan and open Arctic Ocean region clouds and their respective influence on the surface radiation budget. The cloud and radiation datasets were obtained from (1) the DOE North Slope of Alaska (NSA) facility in the coastal town of Barrow, Alaska, and (2) the SHEBA field program, which was conducted from an icebreaker frozen in, and drifting with, the sea-ice for one year in the Western Arctic Ocean. Radar, lidar, radiometer, and sounding measurements from both locations were used to produce annual cycles of cloud occurrence and height, atmospheric temperature and humidity, surface longwave and shortwave broadband fluxes, surface albedo, and cloud radiative forcing. In general, both regions revealed a similar annual trend of cloud occurrence fraction with minimum values in winter (60-75%) and maximum values during spring, summer and fall (80-90%). However, the annual average cloud occurrence fraction for SHEBA (76%) was lower than the 6-year average cloud occurrence at NSA (92%). Both Arctic areas also showed similar annual cycle trends of cloud forcing with clouds warming the surface through most of the year and a period of surface cooling during the summer, when cloud shading effects overwhelm cloud greenhouse effects. The greatest difference between the two regions was observed in the magnitude of the cloud cooling effect (i.e., shortwave cloud forcing), which was significantly stronger at NSA and lasted for a longer period of time than at SHEBA. This is predominantly due to the longer and stronger melt season at NSA (i.e., albedo values that are much lower coupled with Sun angles that are somewhat higher) than the melt season observed over the ice pack at SHEBA. Longwave cloud forcing values were comparable between the two sites indicating a general similarity in cloudiness and atmospheric temperature and humidity structure between the two regions.

Janet Intrieri; Mathhew Shupe

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Lamp method and apparatus using multiple reflections  

DOE Patents [OSTI]

An electrodeless microwave discharge lamp includes an envelope with a discharge forming fill disposed therein which emits light, the fill being capable of absorbing light at one wavelength and re-emitting the absorbed light at a different wavelength, the light emitted from the fill having a first spectral power distribution in the absence of reflection of light back into the fill, a source of microwave energy coupled to the fill to excite the fill and cause the fill to emit light, and a reflector disposed within the microwave cavity and configured to reflect at least some of the light emitted by the fill back into the fill while allowing some light to exit, the exiting light having a second spectral power distribution with proportionately more light in the visible region as compared to the first spectral power distribution, wherein the light re-emitted by the fill is shifted in wavelength with respect to the absorbed light and the magnitude of the shift is in relation to an effective optical path length.

MacLennan, Donald A. (Gaithersburg, MD); Turner, Brian P. (Damascus, MD)

2001-01-01T23:59:59.000Z

182

A replaceable reflective film for solar concentrators  

SciTech Connect (OSTI)

The 3M Company manufactures a silvered acrylic film called ECP-305 that is regarded as the preferred reflective film for use on stretched-membrane heliostats. However, ECP-305 will degrade in time, due to both corrosion of the silver layer and delamination at the film's silver-to-acrylic interface, and will eventually need to be replaced. 3M uses a very aggressive adhesive on this film, and once it is laminated, replacement is very difficult. The purpose of this investigation was the development of a replaceable reflector, a reflective film that can be easily removed and replaced. A replaceable reflector was successfully configured by laminating ECP-305 to the top surface of a smooth, dimensionally stable polymer film, with a removable adhesive applied to the underside of the polymer film. Several stages of screening and testing led to the selection of a 0.010-inch thick polycarbonate (GE 8030) as the best polymer film and a medium tack tape (3M Y-9425) was selected as the best removable adhesive. To demonstrate the feasibility of the replaceable reflector concept and to provide a real-time field test, the chosen construction was successfully applied to the 50-m{sup 2} SKI heliostat at the Central Receiver Test Facility at Sandia National Laboratories in Albuquerque. 4 refs., 13 figs., 7 tabs.

Not Available

1991-09-01T23:59:59.000Z

183

Computational 3D and reflectivity imaging with high photon efficiency  

E-Print Network [OSTI]

Imaging the 3D structure and reflectivity of a scene can be done using photon-counting detectors. Traditional imagers of this type typically require hundreds of detected photons per pixel for accurate 3D and reflectivity ...

Shin, Dongeek

2014-01-01T23:59:59.000Z

184

Mapping bedrock beneath glacial till using CDP seismic reflection methods  

E-Print Network [OSTI]

This paper is a case history demonstrating the applicability of the common depth point (CDP) seismic reflection method to image bedrock beneath glacial till in northwestern Iowa. Reflections from the base of the 40-m thick glacial till are clearly...

Keiswetter, Dean; Black, Ross A.; Steeples, Don W.

1994-03-01T23:59:59.000Z

185

inside/out : mirrors for reflective, creative thinking  

E-Print Network [OSTI]

In this document I present three tools for reflective, creative thinking: Pillow-Talk, the NeverEnding Drawing Machine and Calliope. These tools make use of the "distorted mirror" metaphor for self-reflection. They are ...

Portocarrero, Edwina

2011-01-01T23:59:59.000Z

186

SX-02484-100, Rev. 2 Reflectance and Transmittance Measurement  

E-Print Network [OSTI]

................................................. 10 Operating Procedures Measurements ................. 20 Maintenance through a sample medium. Labsphere offers two standard products for reflectance and transmittance

Woodall, Jerry M.

187

Analysis of Glacier Recession in the Cordillera Apolobamba, Bolivia 1975-2010  

E-Print Network [OSTI]

and Reflection Radiometer (ASTER) and Satellite Pour l'Observation de la Terre (SPOT) and high resolution satellites such as Ikonos and QuickBird. These give researchers the opportunity to obtain a more large-scale and detailed analysis of changes taking place...?37'- 15?04' 68?58'- 69?14' 219.804 37.2 652 36 6,059 4,311 Chaupi Orko 14?40' 69?10' 129.357 21.9 346 19 6,059 4,365 Cololo 14?50' 69?06' 43.072 7.3 135 7.5 5,774 4,311 Ulla Khaya 15?00' 69?03' 47.375 8 171 9.5 5,669 4,390 Corillera De Munecas 15...

Latterman, LaDonna

2012-02-14T23:59:59.000Z

188

Consistency of MODIS surface bidirectional reflectance distribution function and albedo retrievals  

E-Print Network [OSTI]

as historical global albedos from advanced very high resolution radiometer (AVHRR) and Earth Radiation Budget albedos and the Clouds and Earth's Radiant Energy System (CERES) top-of-the-atmosphere albedos as well observations, and a high bias of 0.016 and a low bias of 0.034 compared to those of the latter albedos

Liang, Shunlin

189

Radiative transfer based scaling of LAI retrievals from reflectance data of different resolutions  

E-Print Network [OSTI]

is investigated with 1-km Advanced Very High Resolution Radiometer (AVHRR) data aggregated to different coarse into biogeophysical (energy and water exchanges) and biogeochemical (carbon and volatile organic compound exchanges. Vegetation leaf area index governs net radiation and its expenditure (energy balance), net primary production

Myneni, Ranga B.

190

Phenology, nutrient composition, digestibility and utilization of heath aster (Aster ericoides L.  

E-Print Network [OSTI]

and then appeared to remain relatively constant for the remainder of tne study. The in vitro coefficients of digestion (COD) varied from Sl%%d to 73%%d in leaves, and 60% to 25% in stems. Percentages of ash ranged from 8. 7% to 13. 5%%d in leaves and 2. 4% to ll...

Kallah, Muhammad Sani

1973-01-01T23:59:59.000Z

191

DRAFT Microwave Radiometer Profiler Handbook  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases onOrganizationElectronic2005-2007 Budget Dear2, 2011 DRAFT MEETING

192

LED structure with enhanced mirror reflectivity  

DOE Patents [OSTI]

Embodiments of the present invention are generally related to LED chips having improved overall emission by reducing the light-absorbing effects of barrier layers adjacent mirror contacts. In one embodiment, a LED chip comprises one or more LEDs, with each LED having an active region, a first contact under the active region having a highly reflective mirror, and a barrier layer adjacent the mirror. The barrier layer is smaller than the mirror such that it does not extend beyond the periphery of the mirror. In another possible embodiment, an insulator is further provided, with the insulator adjacent the barrier layer and adjacent portions of the mirror not contacted by the active region or by the barrier layer. In yet another embodiment, a second contact is provided on the active region. In a further embodiment, the barrier layer is smaller than the mirror such that the periphery of the mirror is at least 40% free of the barrier layer, and the second contact is below the first contact and accessible from the bottom of the chip.

Bergmann, Michael; Donofrio, Matthew; Heikman, Sten; Schneider, Kevin S; Haberern, Kevin W; Edmond, John A

2014-04-01T23:59:59.000Z

193

Internal Reflection Sensor for the Cone Penetrometer  

SciTech Connect (OSTI)

The objectives of this project are to design, assemble, test, and demonstrate a prototype Internal Reflection Sensor (IRS) for the cone penetrometer. The sensor will ultimately be deployed during site characterization with the goal of providing real-time, in situ detection of NonAqueous Phase Liquids (NAPLs) in the subsurface. In the first phase of this program, we have designed and assembled an IRS module that interfaces directly to a standard cone penetrometer system. Laboratory tests demonstrated that the sensor responds in real-time to a wide variety of free phase NAPLs without interference from natural materials such as water and soil of various types or dissolved contaminants. In a preliminary field test, the sensor was able to locate NAPLs at thin, discrete depths in a soil test pit when deployed with a cone penetrometer. Ruggedness of the device was tested with a series of penetrometer pushes to the depth of refusal at a clean location. There was no visible damage to the sensor and its performance did not change in the course of these experiments. Based on the successes of the Phase I program, it is recommended that the project proceed to full-scale demonstration in Phase II.

Job Bello

1998-05-29T23:59:59.000Z

194

Reflection and transmission coefficients of a fracture in transversely ...  

E-Print Network [OSTI]

The study of the reflection-transmission problem of a fracture plays an ...... material or abrupt changes in COF (Smith, 1996; Anandakrishnan, 1996; Horgan et al.,.

2011-11-28T23:59:59.000Z

195

Seismic Reflection Data and Conceptual Models for Geothermal...  

Open Energy Info (EERE)

failure of seismic reflection data to image thesubsurface demonstrates the robust reliability of aconceptual model approach to geothermal exploration thatemphasizes the...

196

U-043: Attachmate Reflection Buffer Overflow in FTP Client Lets...  

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

Lifecycle Attachmate Downloads SecurityTracker Alert ID: 1026340 IMPACT ASSESSMENT: Medium Discussion: A vulnerability was reported in Attachmate Reflection. A remote user...

197

Fabrication and performance of polymer-nanocomposite anti-reflective...  

Office of Scientific and Technical Information (OSTI)

News, VA (United States) Design of polymer anti-reflective (AR) optical coatings for plastic substrates is challenging because polymers exhibit a relatively narrow range of...

198

Reflection Survey At Under Steamboat Springs Area (Warpinski...  

Open Energy Info (EERE)

Under Steamboat Springs Area (Warpinski, Et Al., 2002) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Reflection Survey At Under Steamboat...

199

The important effect of electron reflection on thermionic converter performance  

SciTech Connect (OSTI)

Although only a few percent of high energy electrons are reflected from bare metal surfaces, 20--60% of low energy incident electrons are reflected from thermionic converter electrodes with adsorbed cesium and oxygen. The TECMDL computer model indicates that electron reflection in cesium vapor thermionic converters increases the arc potential drop, offsetting the gain in performance obtainable by lowering the collector work function via the coadsorbed Cs/O layer. The possible suppression of electron reflection by using electrodes with sub-micron surface structure is hypothesized and supported by experimental data obtained by employing a new method for testing in cesium-oxygen vapor.

Rasor, N.S.

1998-07-01T23:59:59.000Z

200

angular dependent reflection: Topics by E-print Network  

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

structure factor near Bragg reflections: Graphite Physics Websites Summary: -binding model (see e. g. 15, 16) have been used extensively to study in-plane properties of...

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Fabricating Microgeometry for Custom Surface Reflectance Tim Weyrich  

E-Print Network [OSTI]

a variety of sur- faces, ranging from reproductions of measured BRDFs to materials with unconventional reflectance mod- els continue to be used in rendering applications, more complex and realistic material models material (metal, dielectric, translucent / scattering, etc.). Many analytic reflectance models used

202

Reflection of focused beams from opal photonic crystals  

E-Print Network [OSTI]

. Chutinan, "Full Three-Dimensional Photonic Bandgap Crystals at Near-Infrared Wavelengths," Science 289, 604Reflection of focused beams from opal photonic crystals Karri Varis, Marco Mattila Optoelectronics 10-14, D-55099 Mainz, Germany Abstract: We present a robust method for computing the reflection

Jonsson, Fredrik

203

Visible and near infrared reflectances measured from laboratory ice clouds  

E-Print Network [OSTI]

Visible and near infrared reflectances measured from laboratory ice clouds Brian Barkey* and K. N present laboratory results of the 0:68 m visible (VIS) and 1:617 m near infrared (NIR) reflectances for the remote sensing of thin cirrus clouds on the basis of visible (VIS) and near infrared (NIR) channels

Liou, K. N.

204

Interactive Refractions with Total Internal Reflection Scott T Davis  

E-Print Network [OSTI]

more e-mail: scott-davis-1@uiowa.edu e-mail:cwyman@cs.uiowa.edu efficient such as is the caseInteractive Refractions with Total Internal Reflection Scott T Davis University of Iowa Chris Wyman and improve upon approaches that avoid to- tal internal reflection. CR Categories: I.3.7 [Computer Graphics

Wyman, Chris

205

Camera-based reflectivity measurement for solar thermal applications  

E-Print Network [OSTI]

of the solar-weighted reflectivity of the receiver component in CSP systems. Such reflectivity measurement Tubular receivers for solar thermal power plants, specifically tower plants, are in common use, in plants to be able to do conveniently in the field, possibly at intervals throughout the life of the plant

206

Reflection soft X-ray microscope and method  

DOE Patents [OSTI]

A reflection soft X-ray microscope is provided by generating soft X-ray beams, condensing the X-ray beams to strike a surface of an object at a predetermined angle, and focusing the X-ray beams reflected from the surface onto a detector, for recording an image of the surface or near surface features of the object under observation.

Suckewer, Szymon (Princeton, NJ); Skinner, Charles H. (Lawrenceville, NJ); Rosser, Roy (Princeton, NJ)

1993-01-01T23:59:59.000Z

207

Reflections on Money and Lean Construction Proceedings IGLC-7 253  

E-Print Network [OSTI]

Reflections on Money and Lean Construction Proceedings IGLC-7 253 REFLECTIONS ON MONEY AND LEAN CONSTRUCTION Federico Orrechia1 and Gregory A. Howell2 ABSTRACT Money is a particularly tricky resource to minimize risk of schedule overrun. Here again the role of money is to help clarify value for the client

Tommelein, Iris D.

208

Solids Fraction Measurement with a Reflective Fiber Optic Probe  

SciTech Connect (OSTI)

A method has been developed to extract solids fraction information from a reflective fiber optic probe. The commercially available reflective fiber optic probe was designed to measure axial particle velocity (both up and down directions). However, the reflected light intensity measured is related to particle size and particle concentration. A light reflection model is used to relate the reflected light intensity to solids fraction. In this model we assume that the reflected light intensity is a fixed fraction, K1, of the total light intensity lost in penetration of a solid layer. Also, the solids fraction is related to particle concentration, N, in the light path, by N = K2 (1- ?), where (1-?) is the solids fraction. The parameters K1 and K2 are determined through a calibration and curve fitting procedure. This paper describes this procedure and the steps taken to derive the values of K1 and K2. It is proposed that the reflective fiber optic can be used for real time measurement of solids fraction in a circulating fluid bed.

Seachman, S.M.; Yue, P.C.; Ludlow, J.C.; Shadle, L.J.

2006-11-01T23:59:59.000Z

209

The Influence of Particle Size on Infrared Reflectance Spectra  

SciTech Connect (OSTI)

Reflectance spectra of solids are influenced by the absorption coefficient as well as the particle size and morphology. In the infrared, spectral features may be observed as either maxima or minima: in general, the upward-going peaks in the reflectance spectrum result from surface scattering, which are rays that have reflected from the surface without penetration, whereas downward-going peaks result from either absorption or volume scattering, i.e. rays that have penetrated into the sample or refracted into the sample interior and are not reflected. The light signal reflected from solids usually encompasses all these effects which include dependencies on particle size, morphology and sample density. This paper measures the reflectance spectra in the 1.3 – 16 micron range for various bulk materials that have a combination of strong and weak absorption bands in order to understand the effects on the spectral features as a function of the mean grain size of the sample. The bulk materials were ground with a mortar and pestle and then sieved to separate the samples into various size fractions: 0-45, 45-90, 90-180, 180-250, 250-500, and >500 microns. The directional-hemispherical spectra were recorded using a Fourier transform infrared spectrometer equipped with an integrating sphere to measure the reflectance for all of the particle-size fractions. We have studied both organic and inorganic materials, but this paper focuses on inorganic salts, NaNO3 in particular. Our studies clearly show that particle size has an enormous influence on the measured reflectance spectra for bulk materials and that successful identification requires sufficient representative reflectance data so as to include the particle size(s) of interest. Origins of the effects are discussed.

Myers, Tanya L.; Brauer, Carolyn S.; Su, Yin-Fong; Blake, Thomas A.; Johnson, Timothy J.; Richardson, Robert L.

2014-06-13T23:59:59.000Z

210

High-frequency nonreciprocal reflection from magnetic films with overlayers  

SciTech Connect (OSTI)

We perform a theoretical study of the nonreciprocal reflection of high-frequency microwave radiation from ferromagnetic films with thin overlayers. Reflection from metallic ferromagnetic films is always near unity and shows no nonreciprocity. In contrast, reflection from a structure which has a dielectric overlayer on top of a film composed of insulated ferromagnetic nanoparticles or nanostructures can show significant nonreciprocity in the 75–80?GHz frequency range, a very high value. This can be important for devices such as isolators or circulators.

Wang, Ying; Nie, Yan; Camley, R. E. [Center for Magnetism and Magnetic Nanostructures, University of Colorado at Colorado Springs, Colorado Springs, Colorado 80918 (United States)

2013-11-14T23:59:59.000Z

211

alfven wave reflection: Topics by E-print Network  

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

viscosity and the magnetic diffusivity of the fluid, also known as the magnetic Prandtl number Pm. In the special case Pm1, there is no reflection on an insulating, no-slip...

212

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS, II  

E-Print Network [OSTI]

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS, II University of Tokyo Noda, Chiba 278-8510, Japan Abstract. Green functions and Hall-Littlewoo* *d functions associated to W are introduced, and Green functions are described

Shoj, Toshiaki

213

Anti-reflective nanoporous silicon for efficient hydrogen production  

DOE Patents [OSTI]

Exemplary embodiments are disclosed of anti-reflective nanoporous silicon for efficient hydrogen production by photoelectrolysis of water. A nanoporous black Si is disclosed as an efficient photocathode for H.sub.2 production from water splitting half-reaction.

Oh, Jihun; Branz, Howard M

2014-05-20T23:59:59.000Z

214

Reflective Middleware Solutions for Context-Aware Applications  

E-Print Network [OSTI]

Reflective Middleware Solutions for Context-Aware Applications Licia Capra, Wolfgang Emmerich and Cecilia Mascolo Dept. of Computer Science University College London Gower Street, London, WC1E 6BT, UK {L.Capra|W.Emmerich

Emmerich, Wolfgang

215

Reflection High-Energy Electron Diffraction Beam-Induced Structural...  

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

Beam-Induced Structural and Property Changes on WO3 Thin Films. Reflection High-Energy Electron Diffraction Beam-Induced Structural and Property Changes on WO3 Thin...

216

Image statistics and the perception of surface reflectance  

E-Print Network [OSTI]

Humans are surprisingly good at judging the reflectance of complex surfaces even when the surfaces are viewed in isolation, contrary to the Gelb effect. We argue that textural cues are important for this task. Traditional ...

Sharan, Lavanya

2005-01-01T23:59:59.000Z

217

Reflective Interfaces : assisting teens with stressful situations online  

E-Print Network [OSTI]

This thesis presents the concept of Reflective Interfaces, a novel approach to user experience design that promotes positive behavioral norms. Traditional interface design methodologies such as User Centered Design are ...

Jones, Birago (Birago Korayga)

2012-01-01T23:59:59.000Z

218

Quantum field theoretical description for the reflectivity of graphene  

E-Print Network [OSTI]

We derive the polarization tensor of graphene at nonzero temperature in (2+1)-dimensional space-time. The obtained tensor coincides with the previously known one at all Matsubara frequencies, but, in contrast to it, admits analytic continuation to the real frequency axis satisfying all physical requirements. Using the obtained representation for the polarization tensor, we develope quantum field theoretical description for the reflectivity of graphene. The analytic asymptotic expressions for the reflection coefficients and reflectivities at low and high frequencies are derived for both independent polarizations of the electromagnetic field. The dependencies of reflectivities on the frequency and angle of incidence are investigated. Numerical computations using the exact expressions for the polarization tensor are performed and application regions for the analytic asymptotic results are determined.

Bordag, M; Mostepanenko, V M; Petrov, V M

2015-01-01T23:59:59.000Z

219

Mirror contamination and secondary electron effects during EUV reflectivity analysis  

E-Print Network [OSTI]

Under Extreme Environment, School of Nuclear Engineering, Purdue University, West Lafayette, IN 47907 and subsequent EUV reflectivity loss using the IMPACT facility at Purdue University. Because Ru can either

Harilal, S. S.

220

Reflective Cracking Study: HVS Test Section Forensic Investigation  

E-Print Network [OSTI]

the asphalt concrete. Summary of Testing on the Underlyingtesting performed to validate Caltrans overlay strategies for the rehabilitation of cracked asphalt concrete.concrete. It describes the forensic investigation of the HVS rutting and reflective cracking testing

Jones, David; Steven, B.; Harvey, John T

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Active Reflection Absorption for a Three Dimensional Multidirectional Wave Generator  

E-Print Network [OSTI]

ACTIVE REFLECTION ABSORPTION FOR A THREE DIMENSIONAL MULTIDIRECTIONAL WAVE GENERATOR A Dissertation by OSCAR CRUZ CASTRO Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of DOCTOR OF PHILOSOPHY August 2009 Major Subject: Ocean Engineering ACTIVE REFLECTION ABSORPTION FOR A THREE DIMENSIONAL MULTIDIRECTIONAL WAVE GENERATOR A Dissertation by OSCAR CRUZ CASTRO Submitted...

Cruz Castro, Oscar

2010-10-12T23:59:59.000Z

222

MTI Ground Truth Collection Ivanpah Dry Lake Bed, California, May, July, and August 2002  

SciTech Connect (OSTI)

A multi-agency collaboration successfully completed a series of ground truth measurements at the Ivanpah Dry Lake bed during FY 2002. Four collection attempts were made: two in May, one in July, and one in August. The objective was to collect ground-based measurements and airborne data during Multispectral Thermal Imager satellite overpasses. The measurements were to aid in the calibration of the satellite data and in algorithm validation. The Remote Sensing Laboratory, Las Vegas, Nevada; the National Aeronautics and Space Administration; Los Alamos National Laboratory; and the University of Arizona participated in the effort. Field instrumentation included a sun photometer on loan from the University of Arizona and the Remote Sensing Laboratory's radiosonde weather balloon, weather station, thermal infrared radiometers, and spectral radiometer. In addition, three reflectance panels were deployed; certain tests used water baths set at two different temperatures. Local weather data as well as sky photography were collected. May presented several excellent days; however, it was later learned that tasking for the satellite was not available. A combination of cloud cover, wind, and dusty conditions limited useful data collections to two days, August 28 and 29. Despite less-than- ideal weather conditions, the data for the Multispectral Thermal Imager calibration were obtained. A unique set of circumstances also allowed data collection during overpasses of the LANDSAT7 and ASTER satellites.

David L. Hawley

2002-10-01T23:59:59.000Z

223

Computer assisted design reflection : a web application to improve early stage product in startup companies  

E-Print Network [OSTI]

This thesis investigates the concept of computer-assisted design reflection. The work details the development of a prototype framework and reflection engine. Reflection is a critical process in design. It allows a designer ...

Gimenez, Clayton C. (Clayton Christopher)

2014-01-01T23:59:59.000Z

224

Corrosion-resistant multilayer structures with improved reflectivity  

DOE Patents [OSTI]

In one general embodiment, a thin film structure includes a substrate; a first corrosion barrier layer above the substrate; a reflective layer above the first corrosion barrier layer, wherein the reflective layer comprises at least one repeating set of sub-layers, wherein one of the sub-layers of each set of sub-layers being of a corrodible material; and a second corrosion barrier layer above the reflective layer. In another general embodiment, a system includes an optical element having a thin film structure as recited above; and an image capture or spectrometer device. In a further general embodiment, a laser according to one embodiment includes a light source and the thin film structure as recited above.

Soufli, Regina; Fernandez-Perea, Monica; Robinson, Jeff C.

2013-04-09T23:59:59.000Z

225

Research Needs: Glass Solar Reflectance and Vinyl Siding  

SciTech Connect (OSTI)

The subject of glass solar reflectance and its contribution to permanent vinyl siding distortion has not been extensively studied, and some phenomena are not yet well understood. This white paper presents what is known regarding the issue and identifies where more research is needed. Three primary topics are discussed: environmental factors that control the transfer of heat to and from the siding surface; vinyl siding properties that may affect heat build-up and permanent distortion; and factors that determine the properties of reflected solar radiation from glass surfaces, including insulating window glass. Further research is needed to fully characterize the conditions associated with siding distortion, the scope of the problem, physical properties of vinyl siding, insulating window glass reflection characteristics, and possible mitigation or prevention strategies.

Hart, Robert; Curcija, Charlie; Arasteh, Dariush; Goudey, Howdy; Kohler, Christian; Selkowitz, Stephen

2011-07-07T23:59:59.000Z

226

Reflection and Exclusion of Shear Zones in Inhomogeneous Granular Materials  

E-Print Network [OSTI]

Shear localization in granular materials is studied experimentally and numerically. The system consists of two material layers with different effective frictions. The presence of the material interface leads to a special type of "total internal reflection" of the shear zone. In a wide range of configurations the reflection is characterized by a fixed angle which is analogous to the critical angle of refraction in optics. The zone leaves and reenters the high friction region at this critical angle and in between it stays near the interface in the low friction region. The formalism describing the geometry of the shear zones and that of refracted and reflected light beams is very similar. For the internal visualization of shear localization two independent experimental techniques were used (i) excavation and (ii) Magnetic Resonance Imaging.

Tamas Borzsonyi; Tamas Unger; Balazs Szabo; Sandra Wegner; Frank Angenstein; Ralf Stannarius

2011-08-17T23:59:59.000Z

227

Simulation of the Reflected Blast Wave froma C-4 Charge  

SciTech Connect (OSTI)

The reflection of a blast wave from a C4 charge detonated above a planar surface is simulated with our ALE3D code. We used a finely-resolved, fixed Eulerian 2-D mesh (167 {micro}m per cell) to capture the detonation of the charge, the blast wave propagation in nitrogen, and its reflection from the surface. The thermodynamic properties of the detonation products and nitrogen were specified by the Cheetah code. A programmed-burn model was used to detonate the charge at a rate based on measured detonation velocities. Computed pressure histories are compared with pressures measured by Kistler 603B piezoelectric gauges at 8 ranges (GR = 0, 2, 4, 8, 10, and 12 inches) along the reflecting surface. Computed and measured waveforms and positive-phase impulses were similar, except at close-in ranges (GR < 2 inches), which were dominated by jetting effects.

Howard, W M; Kuhl, A L; Tringe, J W

2011-08-01T23:59:59.000Z

228

Millisecond time resolution neutron reflection from a nematic liquid crystal  

SciTech Connect (OSTI)

The director reorientation of the liquid crystal 4,4' octyl cyanobiphenyl in the nematic phase under application of bursts of ac field have been observed using time-resolved neutron scattering in reflection geometry. The relaxation of the director has been shown to agree with existing theory, as determined by material and cell parameters. This result shows that it is possible to use neutron reflection measurements from buried interfaces to follow kinetic processes on a time scale comparable with the pulse length of the ISIS neutron source (20 ms)

Dalgliesh, R.M.; Lau, Y.G.J.; Richardson, R.M.; Riley, D.J. [ISIS Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX (United Kingdom); H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL (United Kingdom); School of Chemistry, University of Bristol, Cantocks Close, Bristol BS8 1TS (United Kingdom)

2004-09-01T23:59:59.000Z

229

High-accuracy measurements of the normal specular reflectance  

SciTech Connect (OSTI)

The French Laser Megajoule (LMJ) is designed and constructed by the French Commissariata l'Energie Atomique (CEA). Its amplifying section needs highly reflective multilayer mirrors for the flash lamps. To monitor and improve the coating process, the reflectors have to be characterized to high accuracy. The described spectrophotometer is designed to measure normal specular reflectance with high repeatability by using a small spot size of 100 {mu}m. Results are compared with ellipsometric measurements. The instrument can also perform spatial characterization to detect coating nonuniformity.

Voarino, Philippe; Piombini, Herve; Sabary, Frederic; Marteau, Daniel; Dubard, Jimmy; Hameury, Jacques; Filtz, Jean Remy

2008-05-01T23:59:59.000Z

230

E-Print Network 3.0 - attenuated total reflection Sample Search...  

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

and attenuation correction. Tests with simulated X-band reflectivity data... : Data Assimilation, Attenuation correction, X-band radar reflectivity, ensemble Kalman filter. 12;3...

231

E-Print Network 3.0 - attenuated total reflectance Sample Search...  

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

and attenuation correction. Tests with simulated X-band reflectivity data... : Data Assimilation, Attenuation correction, X-band radar reflectivity, ensemble Kalman filter. 12;3...

232

Green functions and Macdonald functions associated to complex reflection groups  

E-Print Network [OSTI]

Green functions and Macdonald functions associated to complex reflection groups Toshiaki Shoji Department of Mathematics Science University of Tokyo Noda, Chiba 278­8510, Japan 1. Introduction 1.1. Green functions are introduced by J.A. Green [G] in 1955, in connection with the representation theory of general

Shoj, Toshiaki

233

ON GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

ON GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS TOSHIAKI SHOJI Department of Mathematics Science University of Tokyo Noda, Chiba 278­8510, Japan §1. What are the Green functions Green functions are introduced by J.A. Green[G] in 1955, in connection with the representation theory of general linear groups GL

Shoj, Toshiaki

234

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS, II  

E-Print Network [OSTI]

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS, II TOSHIAKI SHOJI Department of Mathematics Science University of Tokyo Noda, Chiba 278­8510, Japan Abstract. Green functions associated­Littlewood functions associated to W are introduced, and Green functions are described as the transition matrix between

Shoj, Toshiaki

235

ON GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS  

E-Print Network [OSTI]

ON GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS University of Tokyo Noda, Chiba 278-8510, Japan x1. What are the Green functions Green functions are introduced by J.A. Green[G] in 1955, in connection with * *the

Shoj, Toshiaki

236

Some reflections on mathematics and its relation to computer science  

E-Print Network [OSTI]

Some reflections on mathematics and its relation to computer science Liesbeth De Mol "No paradigm, it is worthless Knuth used this story to explain how he considered mathematics and computer science to be distinct, for developing my thoughts on experimental mathematics and computer science. Of equal importance is the fact

Paris-Sud XI, Université de

237

Seismic reflection analysis of the Manson Impact Structure, Iowa  

E-Print Network [OSTI]

trough diameter of around 21 km, a shallow floor (0.6–0.7 km), and a central uplift that has a minimum diameter of 7.5 km. The two reflection lines are coincidentally located along an east-west radial transect and are constrained by shallow drill...

Keiswetter, Dean; Black, Ross A.; Steeples, Don W.

1996-03-10T23:59:59.000Z

238

Research Needs: Glass Solar Reflectance and Vinyl Siding  

E-Print Network [OSTI]

.S. for residential buildings. To meet IECC's U-factor and solar heat gain coefficient (SHGC) requirements insulatingLBNL-5022E Research Needs: Glass Solar Reflectance and Vinyl Siding Authors: R. Hart*, C. Curcija of any information, apparatus, product, or process disclosed, or represents that its use would

239

Stochastic Systems Group MR Bias Correction and Reflectance  

E-Print Network [OSTI]

. Fisher, M. Cetin, S. Haker, A. Willsky #12;Stochastic Systems Group Outline 1. Introduction 2. MR) · Both maps will have edges #12;Stochastic Systems Group Outline 1. Introduction 2. MR measurement modelStochastic Systems Group MR Bias Correction and Reflectance and Illumination Separation Ayres Fan

Willsky, Alan S.

240

Reflecting Back, or What Can the French Tell  

E-Print Network [OSTI]

' or `relief' theories.3 The French word humour is used occasionally in this broad sense (particularly92 Reflecting Back, or What Can the French Tell The English About Humour? WILL NOONAN L-mère. (English humour highlights with bitterness and despair the absurdity of the world. French humour makes fun

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Freie Universitt Berlin Transient reflectivity and coherent phonon  

E-Print Network [OSTI]

Freie Universität Berlin Transient reflectivity and coherent phonon excitation: An ultrafast probe-Hubbard? . . . . . . 35 1.3.3 The photoinduced phase transition . . . . . . . . . . . . . . . . . . . 36 I #12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 2.1.1 Generation of ultrashort laser pulses: the mode-locked Ti:Sapphire oscillator

Wolf, Martin

242

A 16-ELEMENT REFLECTION GRID AMPLIFIER Frederic Lecuyer1  

E-Print Network [OSTI]

, which can double as a large metal heat sink. Otherwise, the operation of reflection grid amplifiers to improve common- Mirror/Heat Sink Active GridInput Polarizer Active Grid Output Polarizer E Output Beam E Input Beam E Output Beam Differential Transistor Pair E Input Beam Mirror/Heat Sink Active Grid

243

Skin cancer detection by oblique-incidence diffuse reflectance spectroscopy  

E-Print Network [OSTI]

Skin cancer is the most common form of cancer and it is on the rise. If skin cancer is diagnosed early enough, the survival rate is close to 90%. Oblique-incidence diffuse reflectance (OIR) spectroscopy offers a technology that may be used...

Smith, Elizabeth Brooks

2009-05-15T23:59:59.000Z

244

Propagation and reflection of internal waves B. R. Sutherlanda)  

E-Print Network [OSTI]

Propagation and reflection of internal waves B. R. Sutherlanda) Department of Mathematical Sciences 01205-2 I. INTRODUCTION An internal wave is a disturbance propagating under the effects of buoyancy gravity waves incident upon a level where the Doppler-shifted frequency of the waves is comparable

Sutherland, Bruce

245

Vitrinite reflectance anisotropy as a tectonic fabric element  

SciTech Connect (OSTI)

The anisotropy of the coal maceral vitrinite was analyzed in relation to the tectonic setting of a coal from the Southern Anthracite Field in Pennsylvania. For the coal studied, the maximum-intermediate reflectance plane essentially paralleled the axial plane of the synclinorium (N66/sup 0/E strike, 64/sup 0/SE dip).

Hower, J.C. (Univ. of Kentucky, Lexington); Davis, A.

1981-04-01T23:59:59.000Z

246

Toward Infusing Modular and Reflective Design Learning throughout the Curriculum  

E-Print Network [OSTI]

Toward Infusing Modular and Reflective Design Learning throughout the Curriculum John C. Georgas intervention that cen- ters on the widespread infusion of design learning throughout the curriculum using: An emphasis on broadly infusing design learning through the curriculum using modular design challenges

Georgas, John

247

Implementation of solar-reflective surfaces: Materials and utility programs  

SciTech Connect (OSTI)

This report focuses on implementation issues for using solar-reflective surfaces to cool urban heat islands, with specific examples for Sacramento, California. Advantages of solar-reflective surfaces for reducing energy use are: (1) they are cost-effective if albedo is increased during routine maintenance; (2) the energy savings coincide with peak demand for power; (3) there are positive effects on environmental quality; and (4) the white materials have a long service life. Important considerations when choosing materials for mitigating heat islands are identified as albedo, emissivity, durability, cost, pollution and appearance. There is a potential for increasing urban albedo in Sacramento by an additional 18%. Of residential roofs, we estimate that asphalt shingle and modified bitumen cover the largest area, and that built-up roofing and modified bitumen cover the largest area of commercial buildings. For all of these roof types, albedo may be increased at the time of re-roofing without any additional cost. When a roof is repaired, a solar-reflective roof coating may be applied to significantly increase albedo and extend the life of the root Although a coating may be cost-effective if applied to a new roof following installation or to an older roof following repair, it is not cost-effective if the coating is applied only to save energy. Solar-reflective pavement may be cost-effective if the albedo change is included in the routine resurfacing schedule. Cost-effective options for producing light-colored pavement may include: (1) asphalt concrete, if white aggregate is locally available; (2) concrete overlays; and (3) newly developed white binders and aggregate. Another option may be hot-rolled asphalt, with white chippings. Utilities could promote solar-reflective surfaces through advertisement, educational programs and cost-sharing of road resurfacing.

Bretz, S.; Akbari, H.; Rosenfeld, A.; Taha, H.

1992-06-01T23:59:59.000Z

248

The reflective lens : the effects of video analysis on preservice teacher development  

E-Print Network [OSTI]

reflections. Wisconsin. Danielewicz, J. , & NetLibrary2002; Clark, 2001; Danielewicz & NetLibrary Inc. , 2001;

Halter, Christopher P.

2006-01-01T23:59:59.000Z

249

Method and apparatus for inspecting reflection masks for defects  

DOE Patents [OSTI]

An at-wavelength system for extreme ultraviolet lithography mask blank defect detection is provided. When a focused beam of wavelength 13 nm is incident on a defective region of a mask blank, three possible phenomena can occur. The defect will induce an intensity reduction in the specularly reflected beam, scatter incoming photons into an off-specular direction, and change the amplitude and phase of the electric field at the surface which can be monitored through the change in the photoemission current. The magnitude of these changes will depend on the incident beam size, and the nature, extent and size of the defect. Inspection of the mask blank is performed by scanning the mask blank with 13 nm light focused to a spot a few .mu.m in diameter, while measuring the reflected beam intensity (bright field detection), the scattered beam intensity (dark-field detection) and/or the change in the photoemission current.

Bokor, Jeffrey (Oakland, CA); Lin, Yun (Berkeley, CA)

2003-04-29T23:59:59.000Z

250

Subcritical Noise Measurements with a Nickel-Reflected Plutonium Sphere  

SciTech Connect (OSTI)

Subcritical measurements were conducted with an a-phase plutonium sphere reflected by nickel hemishells using the 252Cf Source-Driven Noise Analysis (CSDNA) method to provide criticality safety benchmark data. Measured configurations included a bare plutonium sphere as well as the plutonium sphere reflected by the following nickel thicknesses: 1.27, 2.54, 3.81, 5.08, and 7.62 cm. A certain ratio of spectral quantities was measured for each configuration which varies linearly with the keff of the system. In addition, two types of Monte Carlo calculations were employed: a modified version of MCNP to calculate the ratio of spectral quantities and a KCODE calculation. From the measured and computed quantities the multiplication of each configuration can be approximated. A comprehensive uncertainty analysis was then performed that includes uncertainties in the geometry and materials present in the system in addition to the uncertainties in the method and nuclear data.

Jesson D. Hutchinson; John D. Bess

2009-11-01T23:59:59.000Z

251

Measuring large optical reflection matrices of turbid media  

E-Print Network [OSTI]

We report the measurement of a large optical reflection matrix (RM) of a highly disordered medium. Incident optical fields onto a turbid sample are controlled by a spatial light modulator, and the corresponding fields reflected from the sample are measured using full-field Michelson interferometry. The number of modes in the measured RM is set to exceed the number of resolvable modes in the scattering media. We successfully study the subtle intrinsic correlations in the RM which agrees with the theoretical prediction by random-matrix theory when the effect of the limited numerical aperture on the eigenvalue distribution of the RM is taken into account. The possibility of the enhanced delivery of incident energy into scattering media is also examined from the eigenvalue distribution which promises efficient light therapeutic applications.

Yu, Hyeonseung; Park, YongKeun

2015-01-01T23:59:59.000Z

252

Reflection beamshifts of visible light due to graphene  

E-Print Network [OSTI]

I present theoretical calculations of reflection beamshifts, Goos-H\\"anchen and Imbert-Fedorov shifts, due to the presence of a monolayer graphene on a dielectric media when using a beam with wavelength in the visible range. Specifically, I look at beamshifts for different polarization states (p, s, $45^0$, $\\sigma^+$). The Goos-H\\"anchen shifts I calculated are in good agreement with results of a recent experiment. I will discuss other possible experimental routes to determine beamshifts in graphene.

Hermosa, N

2015-01-01T23:59:59.000Z

253

Reflection algebras for sl(2) and gl(1|1)  

E-Print Network [OSTI]

We present a generalization the G. Letzter's theory of quantum symmetric pairs of semisimple Lie algebras for the case of quantum affine algebras. We then study solutions of the reflection equation for the quantum affine algebras sl(2) and gl(1|1) and their Yangian limit for singlet (diagonal) and vector (non-diagonal) boundary conditions. We construct the corresponding quantum affine coideal subalgebras that are based on the quantum symmetric pairs, and the (generalized) twisted Yangians.

Vidas Regelskis

2013-02-05T23:59:59.000Z

254

Universal signal processing method for multimode reflective sensors  

E-Print Network [OSTI]

reference amplitude in the measurements. Generation of transmitted pulse and triggering of the monitoring satnple and hold chips was accomplished using existing PROM technology. Optical signals were received by a 600 MHz unity gain bandwidth receiver.... In the experiment, the effect of losses was introduced in the fiber by the use of bulkhead connections. The reflected pulse amplitudes of the reference and sensor pulses were measured while the sensor mirror distance was varied, and The ratio of sensor...

Larson, Robert Eugene

1988-01-01T23:59:59.000Z

255

A statistical study of bright spot reflection parameters  

E-Print Network [OSTI]

cal Study of Bright Spot Reflection Parameters. (December 1981) David Lee Godwin, B. S. , Pepperdine University Chairman of Adv1sory Committee: Dr. T. W. Spencer A data set consisting of two seismic lines served as the basis of study... obtained from each of the seismic lines were compared to deter- mine if the presence of commercial quantities of gas could be identified. The measurement process revealed that the interval travel time measurements between the marker horizons...

Godwin, David Lee

1981-01-01T23:59:59.000Z

256

Multiple-channel, total-reflection optic with controllable divergence  

DOE Patents [OSTI]

An apparatus and method for providing focused x-ray, gamma-ray, charged particle and neutral particle, including neutron, radiation beams with a controllable amount of divergence are disclosed. The apparatus features a novel use of a radiation blocking structure, which, when combined with multiple-channel total reflection optics, increases the versatility of the optics by providing user-controlled output-beam divergence. 11 figs.

Gibson, D.M.; Downing, R.G.

1997-02-18T23:59:59.000Z

257

Multiple-channel, total-reflection optic with controllable divergence  

DOE Patents [OSTI]

An apparatus and method for providing focused x-ray, gamma-ray, charged particle and neutral particle, including neutron, radiation beams with a controllable amount of divergence are disclosed. The apparatus features a novel use of a radiation blocking structure, which, when combined with multiple-channel total reflection optics, increases the versatility of the optics by providing user-controlled output-beam divergence.

Gibson, David M. (Voorheesville, NY); Downing, Robert G. (Albany, NY)

1997-01-01T23:59:59.000Z

258

A fractal set from the binary reflected Gray code  

E-Print Network [OSTI]

The permutation associated with the decimal expression of the binary reflected Gray code with $N$ bits is considered. Its cycle structure is studied. Considered as a set of points, its self-similarity is pointed out. As a fractal, it is shown to be the attractor of a IFS. For large values of $N$ the set is examined from the point of view of time series analysis

J. A. Oteo; J. Ros

2005-10-14T23:59:59.000Z

259

Retiring Procurement Official Reflects on Career | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartment of Energy fromComments onReplyofRetiring Procurement Official Reflects on Career

260

An asymptotic model of seismic reflection from a permeable layer  

SciTech Connect (OSTI)

Analysis of compression wave propagation in a poroelastic medium predicts a peak of reflection from a high-permeability layer in the low-frequency end of the spectrum. An explicit formula expresses the resonant frequency through the elastic moduli of the solid skeleton, the permeability of the reservoir rock, the fluid viscosity and compressibility, and the reservoir thickness. This result is obtained through a low-frequency asymptotic analysis of Biot's model of poroelasticity. A review of the derivation of the main equations from the Hooke's law, momentum and mass balance equations, and Darcy's law suggests an alternative new physical interpretation of some coefficients of the classical poroelasticity. The velocity of wave propagation, the attenuation factor, and the wave number, are expressed in the form of power series with respect to a small dimensionless parameter. The absolute value of this parameter is equal to the product of the kinematic reservoir fluid mobility and the wave frequency. Retaining only the leading terms of the series leads to explicit and relatively simple expressions for the reflection and transmission coefficients for a planar wave crossing an interface between two permeable media, as well as wave reflection from a thin highly-permeable layer (a lens). Practical applications of the obtained asymptotic formulae are seismic modeling, inversion, and at-tribute analysis.

Silin, D.; Goloshubin, G.

2009-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Benchmarking of Graphite Reflected Critical Assemblies of UO2  

SciTech Connect (OSTI)

A series of experiments were carried out in 1963 at the Oak Ridge National Laboratory Critical Experiments Facility (ORCEF) for use in space reactor research programs. A core containing 93.2% enriched UO2 fuel rods was used in these experiments. The first part of the experimental series consisted of 253 tightly-packed fuel rods (1.27 cm triangular pitch) with graphite reflectors [1], the second part used 253 graphite-reflected fuel rods organized in a 1.506 cm triangular pitch [2], and the final part of the experimental series consisted of 253 beryllium-reflected fuel rods with a 1.506 cm triangular pitch. [3] Fission rate distribution and cadmium ratio measurements were taken for all three parts of the experimental series. Reactivity coefficient measurements were taken for various materials placed in the beryllium reflected core. The first part of this experimental series has been evaluated for inclusion in the International Reactor Physics Experiment Evaluation Project (IRPhEP) [4] and the International Criticality Safety Benchmark Evaluation Project (ICSBEP) Handbooks, [5] and is discussed below. These experiments are of interest as benchmarks because they support the validation of compact reactor designs with similar characteristics to the design parameters for a space nuclear fission surface power systems. [6

Margaret A. Marshall; John D. Bess

2011-11-01T23:59:59.000Z

262

Aster Watches The World'S Volcanoes- A New Paradigm For Volcanological...  

Open Energy Info (EERE)

backward-looking visible channel telescope for stereo-photogrammetric observations. The spatial resolutions are 15 mpixel in the visible, 30 mpixel in the near-IR, and 90 m...

263

Remote Detection of Quaternary Borate Deposits with ASTER Satellite...  

Open Energy Info (EERE)

Exploration Tool Abstract In the Great Basin of the western United States, geothermal fluids are sometimes associated with surface crusts of borate evaporite minerals. These...

264

ASTERS Teacher Training will not be offered during  

E-Print Network [OSTI]

, endurance tests, and creative tasks. P. O. Box 8039 Statesboro, GA 30460 912-871-1149 912-871-1777 (fax form, visit www.georgiasouthern.edu/garden/ For more information, contact Kathy Tucker at 912-871

Hutcheon, James M.

265

Aster Watches The World'S Volcanoes- A New Paradigm For Volcanological  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 EastMaine: Energy Resources JumpAspen Aerogels JumpRenewable EnergyAssured Power

266

aster satellite images: Topics by E-print Network  

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

data, with no false positives. The failure rate is consistent with the inc... Lang, Dustin; Mierle, Keir; Blanton, Michael; Roweis, Sam 2009-01-01 267 The Satellite-substructure...

267

aster digital image: Topics by E-print Network  

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

click once on the bar next to "Bounding Box" and a window will appear in which you can enter 2 Digital Color Imaging Handbook CiteSeer Summary: Digital technology now enables...

268

Remote Detection Of Quaternary Borate Deposits With Aster Satellite Imagery  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access(California and Hawaii). Task 3:Western Us |RelictAs A

269

Remote Detection of Quaternary Borate Deposits with ASTER Satellite Imagery  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access(California and Hawaii). Task 3:Western Us |RelictAs

270

Geothermal Exploration in Eastern California Using Aster Thermal Infrared  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to: navigation, search OpenEI ReferenceInformation SurfaceData |

271

Estimation of the leaf area index of rice by spectral reflectance analysis  

E-Print Network [OSTI]

reflectance in the near-infrared region, and low reflectance in the middle-infrared region. Leaf reflectance is relatively low, approximately 10'5, in the visible region of the spectrum (0 . 4 to 0. 7 um) with a reflectance peak centered at 0. 55 us (green... for our perception of vegetation as being green. In the near-infrared (near-IR) region (0. 7 to 1. 3 um), reflectance and transmittance are relatively high (45 to 50K each) while absorption is low (less than 5g) (Hoffer, 1978). Reflectance...

Martin, Robert David

1984-01-01T23:59:59.000Z

272

A Survey of Near Infrared Emission in Visual Reflection Nebulae  

E-Print Network [OSTI]

We present a survey for extended 2.2 $\\mu$m emission in 20 new visual reflection nebulae, illuminated by stars with temperatures of 3,600 --- 33,000 K. We detect extended 2.2 $\\mu$m emission in 13 new nebulae, illuminated by stars with temperatures of 6,800 -- 33,000 K. For most of these 13 nebulae we have measured $J-K$, $H-K$, and $K-L'$, as well as obtaining surface brightness measurements at the wavelength of the 3.3 $\\mu$m emission feature. All of the reflection nebulae with extended near infrared emission in excess over scattered starlight have very similar near infrared colors and show the 3.3 $\\mu$m feature in emission with similar feature-to-continuum ratios. The 3.3 $\\mu$m feature-to-continuum ratio ranges from $\\sim$3 to $\\sim$9, both within individual nebulae and from nebula to nebula, which suggests that the 3.3 $\\mu$m feature and its underlying continuum arise from different materials, or from different ranges of sizes within a size distribution of particles. No dependence on the temperature of the illuminating star is seen in the near infrared colors or 3.3 $\\mu$m feature-to-continuum ratio, over a factor of two in stellar temperature. This is similar to our previous IRAS results, in which we found no dependence of the ratio of 12 $\\mu$m to 100 $\\mu$m surface brightnesses in reflection nebulae illuminated by stars with temperatures of 5,000--33,000 K.

K. Sellgren; M. W. Werner; L. J. Allamandola

1995-09-13T23:59:59.000Z

273

DETERMINING REFLECTANCE SPECTRA OF SURFACES AND CLOUDS ON EXOPLANETS  

SciTech Connect (OSTI)

Planned missions will spatially resolve temperate terrestrial planets from their host star. Although reflected light from such a planet encodes information about its surface, it has not been shown how to establish surface characteristics of a planet without assuming known surfaces to begin with. We present a reanalysis of disk-integrated, time-resolved, multiband photometry of Earth obtained by the Deep Impact spacecraft as part of the EPOXI Mission of Opportunity. We extract reflectance spectra of clouds, ocean, and land without a priori knowledge of the numbers or colors of these surfaces. We show that the inverse problem of extracting surface spectra from such data is a novel and extreme instance of spectral unmixing, a well-studied problem in remote sensing. Principal component analysis is used to determine an appropriate number of model surfaces with which to interpret the data. Shrink-wrapping a simplex to the color excursions of the planet yields a conservative estimate of the planet's endmember spectra. The resulting surface maps are unphysical, however, requiring negative or larger-than-unity surface coverage at certain locations. Our ''rotational unmixing'' supersedes the endmember analysis by simultaneously solving for the surface spectra and their geographical distributions on the planet, under the assumption of diffuse reflection and known viewing geometry. We use a Markov Chain Monte Carlo to determine best-fit parameters and their uncertainties. The resulting albedo spectra are similar to clouds, ocean, and land seen through a Rayleigh-scattering atmosphere. This study suggests that future direct-imaging efforts could identify and map unknown surfaces and clouds on exoplanets.

Cowan, Nicolas B.; Strait, Talia E., E-mail: n-cowan@northwestern.edu [Center for Interdisciplinary Exploration and Research in Astrophysics (CIERA), Northwestern University, 2131 Tech Dr., IL 60208 (United States)

2013-03-01T23:59:59.000Z

274

Accurate hydrogen depth profiling by reflection elastic recoil detection analysis  

SciTech Connect (OSTI)

A technique to convert reflection elastic recoil detection analysis spectra to depth profiles, the channel-depth conversion, was introduced by Verda, et al [1]. But the channel-depth conversion does not correct for energy spread, the unwanted broadening in the energy of the spectra, which can lead to errors in depth profiling. A work in progress introduces a technique that corrects for energy spread in elastic recoil detection analysis spectra, the energy spread correction [2]. Together, the energy spread correction and the channel-depth conversion comprise an accurate and convenient hydrogen depth profiling method.

Verda, R. D. (Raymond D.); Tesmer, Joseph R.; Nastasi, Michael Anthony,; Bower, R. W. (Robert W.)

2001-01-01T23:59:59.000Z

275

The reflection of very cold neutrons from diamond powder nanoparticles  

E-Print Network [OSTI]

We study possibility of efficient reflection of very cold neutrons (VCN) from powders of nanoparticles. In particular, we measured the scattering of VCN at a powder of diamond nanoparticles as a function of powder sample thickness, neutron velocity and scattering angle. We observed extremely intense scattering of VCN even off thin powder samples. This agrees qualitatively with the model of independent nanoparticles at rest. We show that this intense scattering would allow us to use nanoparticle powders very efficiently as the very first reflectors for neutrons with energies within a complete VCN range up to $10^{-4}$ eV.

V. V. Nesvizhevsky; E. V. Lychagin; A. Yu. Muzychka; A. V. Strelkov; G. Pignol; K. V. Protasov

2008-05-17T23:59:59.000Z

276

Reflection Survey At Wister Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access Permit5-ID-aRECRaton,RFPs|Reflection Survey At|

277

Reflection Survey At Yellowstone Region (Morgan, Et Al., 2003) | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access Permit5-ID-aRECRaton,RFPs|Reflection Survey At|Energy

278

Reflecting the Revised PM 2.5 National Ambient Air Quality Standard...  

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

Reflecting the Revised PM 2.5 National Ambient Air Quality Standard in NEPA Evaluations Reflecting the Revised PM 2.5 National Ambient Air Quality Standard in NEPA Evaluations This...

279

Evolutionary History of Helicobacter pylori Sequences Reflect Past Human Migrations in Southeast Asia  

E-Print Network [OSTI]

Evolutionary History of Helicobacter pylori Sequences Reflect Past Human Migrations in Southeast analyse housekeeping gene sequences of the human stomach bacterium Helicobacter pylori from various, Dieye FB, et al. (2011) Evolutionary History of Helicobacter pylori Sequences Reflect Past Human

Paris-Sud XI, Université de

280

Complex harmonic wave scattering asthe framework for investigation of bounded beam reflection and transmission  

E-Print Network [OSTI]

Complex harmonic wave scattering asthe framework for investigation of bounded beam reflection their pro- files.We will verifythesestatementswith a largenumberof illustrations. I. COMPLEX HARMONIC WAVE REFLECTION AND TRANSMISSION A. Representation of a complex harmonic wave in a viscoelastic medium

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Reduction in Vehicle Temperatures and Fuel Use from Cabin Ventilation, Solar-Reflective Paint, and a New Solar-Reflective Glazing  

SciTech Connect (OSTI)

An analysis to determine the impact of reducing the thermal load on a vehicle using solar-reflective paint and glazing.

Rugh, J.; Chaney, L.; Meyer, J.; Rustagi, M.; Olson, K.; Kogler, R.

2007-05-01T23:59:59.000Z

282

Statistical Analysis of Spatial Point Patterns on Deep Seismic Reflection Data: A Preliminary Test  

E-Print Network [OSTI]

Statistical Analysis of Spatial Point Patterns on Deep Seismic Reflection Data: A Preliminary Test analysis may provide a new tool for analysing spatial variations in reflection data. Key Words: Deep The purpose of this paper is to present spatial point pattern analyses of seismic reflection data in an effort

Schmidt, Volker

283

Normalized Microwave Reflection Index: A Vegetation Measurement Derived From GPS Networks  

E-Print Network [OSTI]

is known as Normalized Differ- ence Water Index (NDWI) [12]. It is calculated using reflectance in two near infrared (NIR) channels. Similar indices have been proposed that use reflectance at other NIR wavelengthsNormalized Microwave Reflection Index: A Vegetation Measurement Derived From GPS Networks Kristine

Small, Eric

284

Measurements of submillimeter polarization induced by oblique reflection from aluminum alloy  

E-Print Network [OSTI]

Measurements of submillimeter polarization induced by oblique reflection from aluminum alloy Tom of submillimeter radiation when it is obliquely reflected by a flat mirror made of aluminum alloy. For angles by oblique reflection from aluminum alloy at a wavelength of 1 cm agrees with the prediction of the ordinary

Novak, Giles

285

Quantum reflection and interference of matter waves from periodically doped surfaces  

E-Print Network [OSTI]

We show that periodically doped, flat surfaces can act as reflective diffraction gratings for atomic and molecular matter waves. The diffraction element is realized by exploiting that charged dopants locally suppress quantum reflection from the Casimir-Polder potential. We present a general quantum scattering theory for reflection off periodically charged surfaces and discuss the requirements for the observation of multiple diffraction peaks.

Benjamin A. Stickler; Uzi Even; Klaus Hornberger

2015-01-15T23:59:59.000Z

286

Aberration-free, all-reflective laser pulse stretcher  

DOE Patents [OSTI]

An all-reflective pulse stretcher for laser systems employing chirped-pulse amplification enables on-axis use of the focusing mirror which results in ease of use, significantly decreased sensitivity to alignment and near aberration-free performance. By using a new type of diffraction grating which contains a mirror incorporated into the grating, the stretcher contains only three elements: 1) the grating, 2) a spherical or parabolic focusing mirror, and 3) a flat mirror. Addition of a fourth component, a retro-reflector, enables multiple passes of the same stretcher resulting in stretching ratios beyond the current state of the art in a simple and compact design. The pulse stretcher has been used to stretch pulses from 20 fsec to over 600 psec (a stretching ratio in excess of 30,000).

Perry, Michael D. (Livermore, CA); Banks, Paul S. (Livermore, CA); Stuart, Brent C. (Fremont, CA); Fochs, Scott N. (Livermore, CA)

1999-09-28T23:59:59.000Z

287

Copper-assisted, anti-reflection etching of silicon surfaces  

DOE Patents [OSTI]

A method (300) for etching a silicon surface (116) to reduce reflectivity. The method (300) includes electroless deposition of copper nanoparticles about 20 nanometers in size on the silicon surface (116), with a particle-to-particle spacing of 3 to 8 nanometers. The method (300) includes positioning (310) the substrate (112) with a silicon surface (116) into a vessel (122). The vessel (122) is filled (340) with a volume of an etching solution (124) so as to cover the silicon surface (116). The etching solution (124) includes an oxidant-etchant solution (146), e.g., an aqueous solution of hydrofluoric acid and hydrogen peroxide. The silicon surface (116) is etched (350) by agitating the etching solution (124) with, for example, ultrasonic agitation, and the etching may include heating (360) the etching solution (124) and directing light (365) onto the silicon surface (116). During the etching, copper nanoparticles enhance or drive the etching process.

Toor, Fatima; Branz, Howard

2014-08-26T23:59:59.000Z

288

Prototype Cryospheric Experimental Synthetic Aperture Radiometer (CESAR)  

E-Print Network [OSTI]

.Markus@nasa.gov Geoffrey.L.Bland@nasa.gov 4 University of Michigan, CRuf@UMich.edu 5 Langley Research Center, R.W.Lawrence@.nasa.gov 6 Colorado State University, Steven.Reising@ColoState.edu 7 Valparaiso University, Thomas in heterogeneous and climatically-sensitive areas. Examples include: (1) dynamic sea ice areas with frequent lead

Reising, Steven C.

289

ARM - Field Campaign - Microwave Radiometer Profiler Evaluation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD) by Microtops Atmospheric Optical Depth (AOD) by Microtops ARM Data DiscoverygovCampaignsMicrowave

290

ARM - Field Campaign - Microwave Radiometer Profiler Evaluation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD) by Microtops Atmospheric Optical Depth (AOD) by Microtops ARM Data

291

Ground-Based Microwave Radiometer Measurements  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun with Big Sky LearningGetGraphene's 3DRise |EnergyVehicles andGround-Based

292

DESIGN AND CONSTRUCTION OF A FORCE-REFLECTING TELEOPERATION SYSTEM  

SciTech Connect (OSTI)

For certain applications, such as space servicing, undersea operations, and hazardous material handling tasks in nuclear reactors, the environments can be uncertain, complex, and hazardous. Lives may be in danger if humans were to work under these conditions. As a result, a man-machine system--a teleoperator system--has been developed to work in these types of environments. In a typical teleoperator system, the actual system operates at a remote site; the operator located away from this system usually receives visual information from a video image and/or graphical animation on the computer screen. Additional feedback, such as aural and force information, can significantly enhance performance of the system. Force reflection is a type of feedback in which forces experienced by the remote manipulator are fed back to the manual controller. Various control methods have been proposed for implementation on a teleoperator system. In order to examine different control schemes, a one Degree-Of-Freedom (DOF) Force-Reflecting Manual Controller (FRMC) is constructed and integrated into a PC. The system parameters are identified and constructed as a mathematical model. The Proportional-Integral-Derivative (PID) and fuzzy logic controllers are developed and tested experimentally. Numerical simulation results obtained from the mathematical model are compared with those of experimental data for both types of controllers. In addition, the concept of a telesensation system is introduced. A telesensation system is an advanced teleoperator system that attempts to provide the operator with sensory feedback. In this context, a telesensation system integrates the use of a Virtual Reality (VR) unit, FRMC, and Graphical User Interface (GUI). The VR unit is used to provide the operator with a 3-D visual effect. Various commercial VR units are reviewed and features compared for use in a telesensation system. As for the FRMC, the conceptual design of a 3-DOF FRMC is developed in an effort to make the system portable, compact, and lightweight. A variety of design alternatives are presented and evaluated. Finally, a GUI software package is developed to interface with several teleoperation unit components. These components include an industrial robot, electric motor, encoder, force/torque sensor, and CCD camera. The software includes features such as position scaling, force scaling, and rereferencing and is intended to provide a sound basis for the development of a multi-DOF FRMC system in the future.

M.A. Ebadian, Ph.D.

1999-01-01T23:59:59.000Z

293

Three-dimensional light trap for reflective particles  

DOE Patents [OSTI]

A system for containing either a reflective particle or a particle having an index of refraction lower than that of the surrounding media in a three-dimensional light cage. A light beam from a single source illuminates an optics system and generates a set of at least three discrete focussed beams that emanate from a single exit aperture and focus on to a focal plane located close to the particle. The set of focal spots defines a ring that surrounds the particle. The set of focussed beams creates a "light cage" and circumscribes a zone of no light within which the particle lies. The surrounding beams apply constraining forces (created by radiation pressure) to the particle, thereby containing it in a three-dimensional force field trap. A diffractive element, such as an aperture multiplexed lens, or either a Dammann grating or phase element in combination with a focusing lens, may be used to generate the beams. A zoom lens may be used to adjust the size of the light cage, permitting particles of various sizes to be captured and contained.

Neal, Daniel R. (Tijeras, NM)

1999-01-01T23:59:59.000Z

294

Water-Moderated and -Reflected Slabs of Uranium Oxyfluoride  

SciTech Connect (OSTI)

A series of ten experiments were conducted at the Oak Ridge National Laboratory Critical Experiment Facility in December 1955, and January 1956, in an attempt to determine critical conditions for a slab of aqueous uranium oxyfluoride (UO2F2). These experiments were recorded in an Oak Ridge Critical Experiments Logbook and results were published in a journal of the American Nuclear Society, Nuclear Science and Engineering, by J. K. Fox, L. W. Gilley, and J. H. Marable (Reference 1). The purpose of these experiments was to obtain the minimum critical thickness of an effectively infinite slab of UO2F2 solution by extrapolation of experimental data. To do this the slab thickness was varied and critical solution and water-reflector heights were measured using two different fuel solutions. Of the ten conducted experiments eight of the experiments reached critical conditions but the results of only six of the experiments were published in Reference 1. All ten experiments were evaluated from which five critical configurations were judged as acceptable criticality safety benchmarks. The total uncertainty in the acceptable benchmarks is between 0.25 and 0.33 % ?k/keff. UO2F2 fuel is also evaluated in HEU-SOL-THERM-043, HEU-SOL-THERM-011, and HEU-SOL-THERM-012, but these those evaluation reports are for large reflected and unreflected spheres. Aluminum cylinders of UO2F2 are evaluated in HEU-SOL-THERM-050.

Margaret A. Marshall; John D. Bess; J. Blair Briggs; Clinton Gross

2010-09-01T23:59:59.000Z

295

Criticality Benchmark Analysis of Water-Reflected Uranium Oxyfluoride Slabs  

SciTech Connect (OSTI)

A series of twelve experiments were conducted in the mid 1950's at the Oak Ridge National Laboratory Critical Experiments Facility to determine the critical conditions of a semi-infinite water-reflected slab of aqueous uranium oxyfluoride (UO2F2). A different slab thickness was used for each experiment. Results from the twelve experiment recorded in the laboratory notebook were published in Reference 1. Seven of the twelve experiments were determined to be acceptable benchmark experiments for the inclusion in the International Handbook of Evaluated Criticality Safety Benchmark Experiments. This evaluation will not only be available to handbook users for the validation of computer codes and integral cross-section data, but also for the reevaluation of experimental data used in the ANSI/ANS-8.1 standard. This evaluation is important as part of the technical basis of the subcritical slab limits in ANSI/ANS-8.1. The original publication of the experimental results was used for the determination of bias and bias uncertainties for subcritical slab limits, as documented by Hugh Clark's paper 'Subcritical Limits for Uranium-235 Systems'.

Margaret A. Marshall; John D. Bess

2009-11-01T23:59:59.000Z

296

Using Van Manen's model to assess levels of reflectivity among preservice physical education teachers  

E-Print Network [OSTI]

as we improvise, revise, and create new ways of deriving meaning from experience ? thinking to learn.? (p. 844). Rodgers states that reflection includes four criteria: a meaning-making process that makes continuity of learning possible; a systematic... and society; and reflective teaching is committed to reflection as a communal activity. According to Van Manen (1977), teachers must be able to apply a variety of techniques to the curriculum and to the teaching-learning process so that a predetermined...

Ballard, Kristy Kay

2006-10-30T23:59:59.000Z

297

The Genome Organization of Thermotoga maritima Reflects Its Lifestyle  

SciTech Connect (OSTI)

Recent studies have revealed that microbial genomes have many more organizational features than previously thought. Here, an integrated approach utilizing multiple ‘omics’ datasets and bioinformatics tools is established that elucidates genomic features spanning various levels of cellular organization. This methodology produces gene annotation improvements and includes the definition of transcription units. These enhancements to the annotation enable identification of a set of genetic elements instrumental to gene expression and regulation including promoters, ribosome binding sites (RBSs) and untranslated regions (UTRs). This was applied to characterize the genome organization of Thermotoga maritima—a phylogenetically deep-branching, hyperthermophilic bacterium with a small 1.86 Mb genome. Analysis derived from this multiomics approach in combination with bioinformatics tools demonstrate that the genome organization of T. maritima reflects its lifestyle, both with respect to its extreme growth temperature and compact genome. Comparative analysis of genome features suggests that thermodynamic limitations on binding kinetics for RNA polymerase and the ribosome necessitate increased sequence conservation of promoters and RBSs. Thus, restricting the sequences capable of initiating transcription and translation. Furthermore, this organism has uncharacteristically short 5’UTRs (11-17 nucleotides), which reduce the potential for 5’UTR regulatory interactions. The short intergenic distances in the T. maritima genome (5 bp on average) leave little space for regulation through transcription factor binding. The net effect of these constraints, temperature and genomic space, is a reduced ability to tune gene expression. This effect is readily apparent in global gene expression patterns, which show a high fraction of genes expressed independent of growth state with a tight, linear mRNA/protein correlation (Pearson r = 0.62, p < 2.2 x 10-16 t-test). This methodology for characterizing the genome organization is applicable to any culturable bacteria, and as similar studies are completed in diverse taxa, comparative analysis of genome features may provide insights into microbial evolution.

Latif, Haythem; Lerman, Joshua A.; Portnoy, Vasiliy A.; Tarasova, Yekaterina; Nagarajan, Harish; Rutledge, Alexandra C.; Smith, Richard D.; Adkins, Joshua N.; Lee, Dae-Hee; Qiu, Yu; Zengler, Karsten

2013-04-25T23:59:59.000Z

298

E-Print Network 3.0 - attenuated total reflectance-fourier Sample...  

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

(AA) monomerswas visualized and analyzed using attenuated total reflection-Fourier transform Source: Freger, Viatcheslav "Slava" - Zuckerberg Institute for Water Research,...

299

E-Print Network 3.0 - attenuated total reflection-fourier Sample...  

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

(AA) monomerswas visualized and analyzed using attenuated total reflection-Fourier transform Source: Freger, Viatcheslav "Slava" - Zuckerberg Institute for Water Research,...

300

E-Print Network 3.0 - albedo reflectance Sample Search Results  

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

Implications for the surface energy budget Summary: albedo to the extrapolation algorithm andor to the Bidirectional Reflectance Distribution Function (BRDF... ;hemispheric...

Note: This page contains sample records for the topic "reflection radiometer aster" 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

E-Print Network 3.0 - architecture reflects pluripotency Sample...  

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

Search Powered by Explorit Topic List Advanced Search Sample search results for: architecture reflects pluripotency Page: << < 1 2 3 4 5 > >> 1 Leading Edge Chromatin...

302

Home, Home (Video) on the Range: Reflections on Small-Town Video Stores in 2010  

E-Print Network [OSTI]

theory, and practices of video culture in the United States.Home, Home (Video) on the RangeReflections on Small-Town Video Stores in 2010 Daniel

Herbert, Daniel

2010-01-01T23:59:59.000Z

303

Time dependent changes in extreme ultraviolet reflectivity of Ru mirrors from electron-induced surface chemistry  

E-Print Network [OSTI]

for Materials Under Extreme Environment, School of Nuclear Engineering Purdue University, West Lafayette verified by Auger electron spectroscopy (AES). Moreover, the impact on EUV reflectivity (EUVR) with time

Harilal, S. S.

304

Measurement of the specific surface area of snow using infrared reflectance in an integrating sphere at 1310 and 1550 nm  

E-Print Network [OSTI]

Reflection of solar radiation by the Antarctic snow surface at ultraviolet, visible, and near-infrared

Gallet, J.-C.; Domine, F.; Zender, C. S; Picard, G.

2009-01-01T23:59:59.000Z

305

CONCRETE REFLECTED ARRAYS OF U(93.2) METAL  

SciTech Connect (OSTI)

During the period from 1963 – 1973, experiments involving highly enriched uranium units were performed at the Oak Ridge National Laboratory Critical Experiments Facility to determine various critical configurations of three-dimensional arrays. The experiments formed a four-part series, and were reported by several different experimenters; the results of interest for this evaluation are those reported for the fourth experimentation, Critical Three-Dimensional Arrays of Neutron Interacting Units: Part IV, published and performed by D.W.Magnuson (Ref 1). Information is also available in the logbook . This set of experiments utilized subcritical metal units on a split table apparatus to determine critical configurations for 2×2×2 arrangements of highly enriched uranium reflected by concrete. Magnuson manipulated the configuration of several uranium cylinders and blocks within a concrete reflector. The different permutations utilized uranium cylinders of two different heights in various positions in the three dimensional array; certain cases also placed thin uranium blocks on top of the cylinders. The thickness of the surrounding concrete, as well as the inner dimensions of the concrete reflector was also varied in certain cases. The variations resulted in fourteen different experimental permutations or configurations. All fourteen configurations were judged to be unacceptable for use as criticality safety benchmarks. All experiments were initially evaluated; however only three configurations were evaluated in detail. Configurations 2, 4, 6 and 12 were not evaluated in detail because they are subcritical and configurations 5, 7, 8, 9, and 10 were also were not evaluated in detail because they were supercritical by more than beta effective (~0.007), or prompt critical. The experiments evaluated in detail for this benchmark were configurations 1, 3, and 11. The experimental report also contains the information for HEU-MET-FAST-056. Closely related work has been recorded in HEU-MET-FAST-053, which is a benchmark evaluation of a different series of three dimensional array experiments with four different moderator materials. HEU-MET-FAST-023 and HEU-MET-FAST-026 are also related because they utilize the same metal cylinders as these experiments.

Mackenzie Gorham; John D. Bess; J. Blair Briggs; Virginia Dean; Davis Reed

2010-09-01T23:59:59.000Z

306

Solar Reflectance Index (SRI) Calculation Worksheet SRI-WS Computer Generated Form  

E-Print Network [OSTI]

Zone: Building Type: Residential Nonresidential Project Name: Project Address: Roofing Products (Cool Roof) Roofing products with high solar reflectance and thermal emittance are referred to as "Cool Roof required to provide air conditioning. The benefit of a high reflectance surface is obvious: while dark

307

Laboratory measurements of spectral reflection from ice clouds of various habits  

E-Print Network [OSTI]

­4 It has been shown theoretically and from in situ measurements that ice cloud visi- ble and near-infrared, as described in Section 2, can be largely controlled. Zander8,9 measured the infrared reflection proper- ties preliminary comparisons between the near-IR ice cloud reflection and expectations based on the mea- sured

Liou, K. N.

308

Wide-field near-infrared all-reflecting camera with Fabry--Perot for astronomy  

E-Print Network [OSTI]

Wide-field near-infrared all-reflecting camera with Fabry--Perot for astronomy Yin-sheng Sun to small temperature differences in the optical system. Keywords: Fabry-Perot etalon, reflecting, near-infrared, imaging, astronomy 1 INTRODUCTION Our goal is to build a camera that can acquire near-infrared images

Ashley, Michael C. B.

309

Spectral variations in the near-infrared ocean reflectance Mava Doron a,b,c,  

E-Print Network [OSTI]

Spectral variations in the near-infrared ocean reflectance Maéva Doron a,b,c, , Simon Bélanger d Available online 5 April 2011 Keywords: Ocean color Near-infrared Reflectance Satellite data In situ data range, in the near-infrared (NIR, 700­900 nm), have received little attention because they are often

Babin, Marcel

310

Simultaneous measurement of laser reflection and transmission of poly,,vinyl chloride...  

E-Print Network [OSTI]

, unpigmented state are highly transmissive of light in the near-infrared range, al- lowing laser transmissionSimultaneous measurement of laser reflection and transmission of poly,,vinyl chloride... James D reflection, emphasizing the light transmitted through a material. This paper presents work creating a low

Van de Ven, James D.

311

No oceans on Titan from the absence of a near-infrared specular reflection  

E-Print Network [OSTI]

No oceans on Titan from the absence of a near-infrared specular reflection R. A. West1 , M. E shown specular reflection are shown in Fig. 2. To understand how sensitive the near-infrared images-based observations (at near-infrared wavelengths) and calculations showing that there is no evidence thus far

Brown, Michael E.

312

Modeling the diffuse reflectance due to a narrow beam incident on a turbid medium  

E-Print Network [OSTI]

of an asymptotic analysis of the radiative transport equation for strong scattering, weak absorption, and a narrow of the radiative transport equation, we show that this diffuse reflectance model gives results that are accurate for the diffuse reflectance from the solution of the radiative transport equation. However, using the solution

Kim, Arnold D.

313

P2.2 Segmenting Radar Reflectivity Data using Texture V. Lakshmanan1,2  

E-Print Network [OSTI]

with a different level of detail. Radar data algorithms (e.g: Wolf- son et al. (1999); Johnson et al. (1998)) have to partition the image values into the K bins. The measurement space (the radar reflectivity valuesP2.2 Segmenting Radar Reflectivity Data using Texture V. Lakshmanan1,2 , R. Rabin1,3 , V. De

Lakshmanan, Valliappa

314

High Contrast and Fast Response Polarization-Independent Reflective Display Using a Dye-Doped  

E-Print Network [OSTI]

High Contrast and Fast Response Polarization- Independent Reflective Display Using a Dye-Doped Dual-host reflective display using a dye-doped dual- frequency liquid crystal (DFLC) gel. By combining dye absorption (typically $10:1) of the employed dyes. Increasing This work was supported by Toppoly Optoelectronics (Taiwan

Wu, Shin-Tson

315

Development and evaluation of an automated reflectance microscope system for the petrographic characterization of bituminous coals  

SciTech Connect (OSTI)

The development of automated coal petrographic techniques will lessen the demands on skilled personnel to do routine work. This project is concerned with the development and successful testing of an instrument which will meet these needs. The fundamental differences in reflectance of the three primary maceral groups should enable their differentiation in an automated-reflectance frequency histogram (reflectogram). Consequently, reflected light photometry was chosen as the method for automating coal petrographic analysis. Three generations of an automated system (called Rapid Scan Versions I, II and III) were developed and evaluated for petrographic analysis. Their basic design was that of a reflected-light microscope photometer with an automatic stage, interfaced with a minicomputer. The hardware elements used in the Rapid Scan Version I limited the system's flexibility and presented problems with signal digitization and measurement precision. Rapid Scan Version II was designed to incorporate a new microscope photometer and computer system. A digital stepping stage was incorporated into the Rapid Scan Version III system. The precision of reflectance determination of this system was found to be +- 0.02 percent reflectance. The limiting factor in quantitative interpretation of Rapid Scan reflectograms is the resolution of reflectance populations of the individual maceral groups. Statistical testing indicated that reflectograms were highly reproducible, and a new computer program, PETAN, was written to interpret the curves for vitrinite reflectance parameters ad petrographic.

Hoover, D. S.; Davis, A.

1980-10-01T23:59:59.000Z

316

Detecting voids in a 0.6 m coal seam, 7 m deep, using seismic reflection  

E-Print Network [OSTI]

in an undermined area of southeastern Kansas, USA. Water-filled cavities responsible for sinkholes in this area are in a 0.6 m thick coal seam, 7 m deep. Dominant reflection frequencies in excess of 200 Hz enabled reflections from the coal seam to be discerned from...

Miller, Richard D.; Steeples, Don W.

1991-01-01T23:59:59.000Z

317

In-flight degradation correction of SCIAMACHY UV reflectances and Absorbing Aerosol Index  

E-Print Network [OSTI]

In-flight degradation correction of SCIAMACHY UV reflectances and Absorbing Aerosol Index L. G), In-flight degradation correction of SCIAMACHY UV reflectances and Absorbing Aerosol Index, J. Geophys degradation in the ultraviolet (UV) wavelength range, from which the AAI is determined. An exception

Stoffelen, Ad

318

Microstructured anti-reflection surface design for the omni-directional solar cells  

E-Print Network [OSTI]

Microstructured anti-reflection surface design for the omni-directional solar cells Li Chen for the formation of hemispherical structures as an omni-directional anti-reflection (omni-AR) coating in solar cell current in such hemispherical solar cells hence enhanced to 1.5 times of bulk silicon solar cells

Zhou, Weidong

319

596revision:1997-03-23modified:1997-03-23 Some independence results on reflection  

E-Print Network [OSTI]

596revision:1997-03-23modified:1997-03-23 Some independence results on reflection James Cummings;596revision:1997-03-23modified:1997-03-23 Baumgartner proved in [1] that if is weakly compact, GCH holds sense the strong non-reflection principle captures 2 #12;596revision:1997-03-23modified:1997

Shelah, Saharon

320

Autonomous buoy for seismic reflection data acquisition in the inaccessible parts of the Arctic Ocean  

E-Print Network [OSTI]

Autonomous buoy for seismic reflection data acquisition in the inaccessible parts of the Arctic Instrumentation, Bergen, Norway An autonomous buoy which collects seismic reflection data and transmits to shore of the seismic buoy (thick red, green and black lines). - we have successfully developed an autonomous buoy

Kristoffersen, Yngve

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Near-Infrared Reflectance Spectroscopy is a Rapid, Cost-Effective Predictor  

E-Print Network [OSTI]

Near-Infrared Reflectance Spectroscopy is a Rapid, Cost-Effective Predictor of Seagrass Nutrients + Business Media, Inc. 2006 Abstract Near-infrared reflectance spectroscopy was used to analyze nutrient com to the laboratory, and separated into leaf and root/rhizome fractions. They were dried, ground, and near-infrared

Marsh, Helene

322

Uranium Oxide as a Highly Reflective Coating from 150-350 eV  

E-Print Network [OSTI]

of depleted uranium metal (less than 0.2% U-235). After sputtering, the uranium was allowed to oxidize1 Uranium Oxide as a Highly Reflective Coating from 150-350 eV Richard L. Sandberg, David D. Allred.byu.edu ABSTRACT We present the measured reflectances (beamline 6.3.2, ALS at LBNL) of naturally oxidized uranium

Hart, Gus

323

Seismic reflection imaging of the Mount Rose fault zone, Reno, Nevada  

E-Print Network [OSTI]

Seismic reflection imaging of the Mount Rose fault zone, Reno, Nevada Project Award Number: # G09AP expressed or implied, of the U.S. Government. #12;2 Abstract Five new high-resolution seismic reflection00071 Submission date: November 30, 2010 CGISS Technical Report 10-01 Lee M. Liberty Center

Barrash, Warren

324

Reflection systems and partial root systems Ottmar Loos and Erhard Neher  

E-Print Network [OSTI]

Reflection systems and partial root systems Ottmar Loos and Erhard Neher Abstract. We develop a general theory of reflection systems and, more specifically, partial root sys- tems which provide a unifying framework for finite root systems, Kac-Moody root systems, extended affine root systems

Neher, Erhard

325

Influence of ionization on reflection of solitary waves in a magnetized plasma  

SciTech Connect (OSTI)

The reflection of nonlinear solitary waves is studied in a nonuniform, magnetized plasma diffusing from an ionization source along the magnetic field lines. Contribution of the ionization term is included in the continuity equation. The behavior of solitary waves is governed by modified form of Korteweg–de Vries equation (called mKdV equation). In order to investigate the reflection of solitary waves, the mKdV equations for the right and left going waves are derived, and solved by finding new transformations coupled at the point of reflection, for obtaining the expression of reflection coefficient. Contrary to the case of usual inhomogeneous plasma, the present analysis shows that a combination of usual sech{sup 2} structure and tanh structure (called the tail of soliton) arises due to the influence of ionization term. Interestingly, this tailing structure disappears after the reflection of the soliton and hence, the soliton is downshifted prominently.

Jyoti,; Malik, Hitendra K. [Plasma Waves and Particle Acceleration Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi 110 016 (India)] [Plasma Waves and Particle Acceleration Laboratory, Department of Physics, Indian Institute of Technology Delhi, New Delhi 110 016 (India); Kumar, Ravinder [Department of Physics, Janta Vedic College Baraut, Uttar Pradesh 265 001 (India)] [Department of Physics, Janta Vedic College Baraut, Uttar Pradesh 265 001 (India); Dahiya, Raj P. [Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi 110 016 (India)] [Centre for Energy Studies, Indian Institute of Technology Delhi, New Delhi 110 016 (India)

2013-09-15T23:59:59.000Z

326

Quantitative Total and Diffuse Reflectance Laboratory Measurements for Remote, Standoff, and Point Sensing  

SciTech Connect (OSTI)

Methods for making total and diffuse directional/hemispherical reflectance measurements in the shortwave to longwave infrared using an integrating sphere are described. The sphere is a commercial, off-the-shelf optical device with its sample port at the bottom, which is essential for examining powdered samples without using a cover glass. The reflectance spectra of recently-developed National Institute of Standards and Technology (NIST, USA) infrared reflectance standards have been measured using the sphere. Reflectance spectra of other materials such as Spectralon and Infragold were also measured. The relative systematic error for the total reflectance measurements is estimated to be on the order of 3%, and random measurement error for multiple samples of each material is on the order of 0.5%.

Blake, Thomas A.; Johnson, Timothy J.; Tonkyn, Russell G.; Forland, Brenda M.; Myers, Tanya L.; Brauer, Carolyn S.; Su, Yin-Fong

2014-06-10T23:59:59.000Z

327

Polyethylene-reflected plutonium metal sphere : subcritical neutron and gamma measurements.  

SciTech Connect (OSTI)

Numerous benchmark measurements have been performed to enable developers of neutron transport models and codes to evaluate the accuracy of their calculations. In particular, for criticality safety applications, the International Criticality Safety Benchmark Experiment Program (ICSBEP) annually publishes a handbook of critical and subcritical benchmarks. Relatively fewer benchmark measurements have been performed to validate photon transport models and codes, and unlike the ICSBEP, there is no program dedicated to the evaluation and publication of photon benchmarks. Even fewer coupled neutron-photon benchmarks have been performed. This report documents a coupled neutron-photon benchmark for plutonium metal reflected by polyethylene. A 4.5-kg sphere of ?-phase, weapons-grade plutonium metal was measured in six reflected configurations: (1) Bare; (2) Reflected by 0.5 inch of high density polyethylene (HDPE); (3) Reflected by 1.0 inch of HDPE; (4) Reflected by 1.5 inches of HDPE; (5) Reflected by 3.0 inches of HDPE; and (6) Reflected by 6.0 inches of HDPE. Neutron and photon emissions from the plutonium sphere were measured using three instruments: (1) A gross neutron counter; (2) A neutron multiplicity counter; and (3) A high-resolution gamma spectrometer. This report documents the experimental conditions and results in detail sufficient to permit developers of radiation transport models and codes to construct models of the experiments and to compare their calculations to the measurements. All of the data acquired during this series of experiments are available upon request.

Mattingly, John K.

2009-11-01T23:59:59.000Z

328

A theoretical analysis of reflection of X-rays from water at energies relevant for diagnostics  

SciTech Connect (OSTI)

The reflection of X-rays from a semi-infinite water target, for energies used in X-ray diagnostics, is treated by the analog Monte Carlo simulation. In the developed procedure it was possible to calculate separately contributions of photons scattered, before reflection, fixed number of times with target electrons. It turned out that multiple collision type of reflection dominates at all energies investigated, whenever the absorption is small. The same process was also treated analytically as the classical albedo problem for isotropic scattering without energy loss. Very good agreement of results of the two approaches is obtained.

Arsenovic, Dusan [Institute of Physics, Pregrevica 118, P.O. Box 57, Belgrade (Serbia and Montenegro); Davidovic, Dragomir M.; Vukanic, Jovan [Vinca Institute of Nuclear Sciences, P.O Box 522, Belgrade (Serbia and Montenegro)

2003-01-24T23:59:59.000Z

329

Durable silver mirror with ultra-violet thru far infra-red reflection  

DOE Patents [OSTI]

A durable highly reflective silver mirror characterized by high reflectance in a broad spectral range of about 300 nm in the UV to the far infrared (.about.10000 nm), as well as exceptional environmental durability. A high absorptivity metal underlayer is used which prevents the formation of a galvanic cell with a silver layer while increasing the reflectance of the silver layer. Environmentally durable overcoat layers are provided to enhance mechanical and chemical durability and protect the silver layer from corrosion and tarnishing, for use in a wide variety of surroundings or climates, including harsh or extreme environments.

Wolfe, Jesse D. (Discovery Bay, CA)

2010-11-23T23:59:59.000Z

330

Relativistic smearing of the reflection spectrum in Galactic Black Hole Candidates  

E-Print Network [OSTI]

We identify the reflected component in the GINGA spectra of Nova Muscae, a Black Hole transient system which has been used as the prototype for the recent advection dominated disk models. We see that the reflected spectrum is generally significantly relativistically smeared, and use this and the amount of reflection to track the innermost extent of the accretion disk. We see that the optically thick disk does retreat during the decline, but more slowly than predicted by the advective models, posing problems for this description of the accretion flow.

C. Done; P. T. Zycki; D. A. Smith

1997-12-17T23:59:59.000Z

331

Plasma waves reflection from a boundary with specular accommodative boundary conditions  

E-Print Network [OSTI]

In the present work the linearized problem of plasma wave reflection from a boundary of a half--space is solved analytically. Specular accommodative conditions of plasma wave reflection from plasma boundary are taken into consideration. Wave reflectance is found as function of the given parameters of the problem, and its dependence on the normal electron momentum accommodation coefficient is shown by the authors. The case of resonance when the frequency of self-consistent electric field oscillations is close to the proper (Langmuir) plasma oscillations frequency, namely, the case of long wave limit is analyzed. Refs. 17. Figs. 6.

N. V. Gritsienko; A. V. Latyshev; A. A. Yushkanov

2010-01-06T23:59:59.000Z

332

Non-invasive detection of oral cancer using reflectance and fluorescence spectroscopy  

E-Print Network [OSTI]

In vivo reflectance and fluorescence spectra were collected from patients with oral lesions, as well as healthy volunteers, in order to evaluate the potential of spectroscopy to serve as a non-invasive tool for the detection ...

McGee, Sasha Alanda

2008-01-01T23:59:59.000Z

333

Simulation Studies of Hydrogen Ion reflection from Tungsten for the Surface Production of Negative Hydrogen Ions  

SciTech Connect (OSTI)

The production efficiency of negative ions at tungsten surface by particle reflection has been investigated. Angular distributions and energy spectra of reflected hydrogen ions from tungsten surface are calculated with a Monte Carlo simulation code ACAT. The results obtained with ACAT have indicated that angular distributions of reflected hydrogen ions show narrow distributions for low-energy incidence such as 50 eV, and energy spectra of reflected ions show sharp peaks around 90% of incident energy. These narrow angular distributions and sharp peaks are favorable for the efficient extraction of negative ions from an ion source equipped with tungsten surface as negative ionization converter. The retained hydrogen atoms in tungsten lead to the reduction in extraction efficiency due to boarded angular distributions.

Kenmotsu, Takahiro; Wada, Motoi [Doshisha University, Kyotanabe, Kyoto 610-0394 (Japan)

2011-09-26T23:59:59.000Z

334

A program to design asphalt concrete overlays to mitigate reflection cracking  

E-Print Network [OSTI]

of the research are to understand the occurrence and behavior of reflection cracking and for devising ways of mitigating them and to put together an effective and complete package of computer programs to design asphalt concrete overlays. Another primary objective...

Satyanarayana Rao, Sindhu

2002-01-01T23:59:59.000Z

335

Ultra-Shallow Imaging Using 2D & 3D Seismic Reflection Methods  

E-Print Network [OSTI]

The research presented in this dissertation focuses on the survey design, acquisition, processing, and interpretation of ultra-shallow seismic reflection (USR) data in two and three dimensions. The application of 3D USR methods to image multiple...

Sloan, Steven D.

2008-01-01T23:59:59.000Z

336

The use of near infrared reflectance spectroscopy to predict protein fractions in free-ranging cattle  

E-Print Network [OSTI]

Research was conducted to assess the feasibility of using near infrared reflectance spectroscopy (NIRS) technology to predict fractional protein utilization in cattle on forage based diets. Forage samples were obtained from esophageal and ruminal...

Whitley, Evan Micah

1996-01-01T23:59:59.000Z

337

Reflectivity of silver and silver-coated substrates from 25 C to 800 C  

SciTech Connect (OSTI)

A bench top facility was used to evaluate the reflectivity of several candidate coating-substrate combinations in vacuum at elevated temperatures. Silver was selected as the reflective coating of choice, while copper, nickel, electroless nickel on copper, and 304 stainless steel were selected as substrates. Pure silver, with no coating at all, was also evaluated. An optically flat silver-coated sapphire substrate was used as a standard. All metal substrates were either metallurgically polished or diamond turned to a mirror finish prior to silver deposition. Silicon dioxide was used as a protective coating in most cases. Reflectivity measurements were made at room temperature in the visible range with a spectrophotometer, and at elevated temperatures up to 800 C with a helium-neon laser at 632 nm. Results from the high temperature reflectivity measurements will be presented.

Jaworske, D.A. [NASA Lewis Research Center, Cleveland, OH (United States)

1997-12-31T23:59:59.000Z

338

The Impact of a Metacognitive Reflection Component in a Problem-Based Learning Unit  

E-Print Network [OSTI]

This mixed methods dissertation explores the impact of metacognitive support (reflective journal entries and a think-aloud exercise) in a PBL (problem-based learning) unit. While students are developing a solution for a PBL unit they may become...

Seifert, Kathryn A.

2010-01-16T23:59:59.000Z

339

A system for optimizing interior daylight distribution using reflective Venetian blinds with independent blind angle control  

E-Print Network [OSTI]

An operational algorithm for blind angle control is developed to optimize the daylighting performance of a system of reflective Venetian blinds. Numerical modeling and experiment confirm that independent control of alternating ...

McGuire, Molly E

2005-01-01T23:59:59.000Z

340

Pearls of Wisdom : technology for intentional reflection and learning in constructionist cooperatives  

E-Print Network [OSTI]

At the core of the constructionist learning paradigm is the idea that people learn through design experiences. However, in most settings, learners rarely revisit their work to reflect on design and learning processes. The ...

Chapman, Robbin Nicole, 1958-

2006-01-01T23:59:59.000Z

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


341

A 3D-3C Reflection Seismic Survey and Data Integration to Identify...  

Office of Environmental Management (EM)

to Identify the Seismic Response of Fractures and Permeable Zones Over a Known Geothermal Resource at Soda Lake, Churchhill Co., NV A 3D-3C Reflection Seismic Survey and Data...

342

Real-Time Measurements of Actin Filament Polymerization by Total Internal Reflection Fluorescence Microscopy  

E-Print Network [OSTI]

Real-Time Measurements of Actin Filament Polymerization by Total Internal Reflection Fluorescence polymerization and its regulation by associated proteins requires an assay to monitor polymerization dynamics nucleotide. INTRODUCTION Actin polymerization contributes to many cellular processes under the control

343

In Vitro Human Embryos: Interdisciplinary reflections on the first 4 decades  

E-Print Network [OSTI]

, in the Marshall Lab in the early 1970's #12;1 In Vitro Human Embryos: Interdisciplinary reflections on the first Department) for providing organisational support; Debbie Spikins for her untiring work dealing

de Gispert, Adrià

344

Using Visible and Near Infrared Diffuse Reflectance Spectroscopy to Characterize and Classify Soil Profiles  

E-Print Network [OSTI]

solum thicknesses, along with many associated soil properties, an ECa map can be used to employ stratified random sampling to select soil or crop sampling locations (Corwin and Lesch 2005; Johnson et al., 2005). VisNIR Diffuse Reflectance Spectroscopy...

Wilke, Katrina Margarette

2011-10-21T23:59:59.000Z

345

A TRANSMISSION SPECTRUM OF TITAN'S NORTH POLAR ATMOSPHERE FROM A SPECULAR REFLECTION OF THE SUN  

E-Print Network [OSTI]

Cassini/VIMS T85 observations of a solar specular reflection off of Kivu Lacus (87[° over .]4N 241[° over .]1E) provide an empirical transmission spectrum of Titan's atmosphere. Because this observation was acquired from ...

Barnes, Jason W.

346

Does monetary poverty reflect caloric intake? Ibrahima BOCOUM CIRAD, UMR MOISA, F-34398 Montpellier, France  

E-Print Network [OSTI]

1 Does monetary poverty reflect caloric intake? Ibrahima BOCOUM CIRAD, UMR MOISA, F-34398 poverty. Using a Maliansurvey thatincorporatesexceptionally detailed information on food consumption, we: poverty, food insecurity, caloric intake, household surveys, Mali 1 Introduction Estimating the number

Boyer, Edmond

347

X-ray multilayer characterization using reflectivity beamline at Indus-1  

SciTech Connect (OSTI)

Poor knowledge of optical constants of various materials in the soft x-ray region requires to test the soft x-ray optical devices at actual wavelengths. For such purposes a soft x-ray/vacuum ultraviolet reflectivity beamline has been setup on Indus-1 synchrotron.X-ray multilayer structures are also being developed at RRCAT. Silicon based different multilayer optics fabricated in house for 100-200A ring wavelength region show a very high reflectivity performance. A new multilayer combination comprised of NbC/Si is proposed for achieving good thermal stability high reflectivity in the Si L-edge region. A high reflectivity of 63% in near normal incidence region is obtained with a sputter deposited Mo/Si combination. Results prospects of growing NbC/Si multilayer are presented.

Modi, Mohammed H.; Prasad, T. T.; Nayak, M.; Pothana, N.; Jaiswal, A.; Rai, S. K.; Lodha, G. S. [X-ray Optics Section Raja Ramanna Centre for Advanced Technology (RRCAT) Indore 452013 (India)

2010-06-23T23:59:59.000Z

348

The effect of multiply reflected molecules in free molecule flow over a general body  

E-Print Network [OSTI]

A method was devised and calculations were performed to determine the effects of reflected molecules on the aerodynamic force and moment coefficients for a body in free molecule flow. A procedure was developed for determining the velocity...

Powell, Gordon Lee

1993-01-01T23:59:59.000Z

349

Full-wave description of the lower hybrid reflection of whistler waves  

SciTech Connect (OSTI)

A quasi-electrostatic whistler wave propagating in the direction of increasing lower hybrid resonance (LHR) frequency experiences reflection from the region in which its frequency becomes lower than the LHR frequency. This phenomenon is usually described in the framework of geometrical optics. For a wave propagating along a magnetospheric trajectory, the LHR reflection frequently takes place in the ionospheric region in which electron-neutral collisions are essential and lead to wave attenuation. In this case, the wave approach to the description of the LHR reflection is most consistent. This work is aimed at developing such an approach. The coefficients of the wave reflection are calculated for different plasma parameters. The relation between the problem under consideration and the problem of exit of whistler-mode waves to the ground is considered.

Kuzichev, I. V., E-mail: mar-cuss@yandex.ru; Shklyar, D. R. [Russian Academy of Sciences, Space Research Institute (Russian Federation)] [Russian Academy of Sciences, Space Research Institute (Russian Federation)

2013-10-15T23:59:59.000Z

350

Quality Control of WSR-88D Reflectivity Data V Lakshmanan, Kurt Hondl, Gregory Stumpf, Travis Smith  

E-Print Network [OSTI]

Quality Control of WSR-88D Reflectivity Data V Lakshmanan, Kurt Hondl, Gregory Stumpf, Travis Smith this to compare our technique. · Steiner and Smith, from Princeton University, developed a rule base. Similar

Lakshmanan, Valliappa

351

Present and Near-Future Reflected Light Searches for Close-In Planets  

E-Print Network [OSTI]

Close-in extrasolar giant planets may be directly detectable by their reflected light, due to the proximity of the planet to the illuminating star. The spectrum of the system will contain a reflected light component that varies in amplitude and Doppler shift as the planet orbits the star. Intensive searches for this effect have been carried out for only one extrasolar planet system, tau Boo. There exist several other attractive targets, including the transiting planet system HD 209458.

David Charbonneau; Robert W. Noyes

2000-02-26T23:59:59.000Z

352

Seismic reflection data analysis of the Oriente and Swan Fracture Zones bounding the Cayman Trough  

E-Print Network [OSTI]

SEISMIC REFLECTION DATA ANALYSIS OF THE ORIENTE AND SWAN FRACTURE ZONES BOUNDING THE CAYMAN TROUGH A Thesis by MARY NORRIS TINKER Submitted to the Graduate College of Texas A8 M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 1986 Major Subject: Geophysics SEISMIC REFLECTION DATA ANALYSIS OF THE ORIENTE AND SWAN FRACTURE ZONES BOUNDING THE CAYMAN TROUGH A Thesis by MARY NORRIS TINKER Approved as to style and content by: D. A. Fa quiet...

Tinker, Mary Norris

2012-06-07T23:59:59.000Z

353

Multilayer deposition and EUV reflectance characterization of 131 ? flight mirrors for AIA at LLNL  

SciTech Connect (OSTI)

Mo/Si multilayer coatings reflecting at 131 {angstrom} were deposited successfully on the AIA primary and secondary flight mirrors and on two coating witness Si wafers, on November 16, 2005, at LLNL. All coatings were characterized by means of EUV reflectance measurements at beamline 6.3.2 of the Advanced Light Source (ALS) synchrotron at LBNL, and were found to be well within specifications.

Soufli, R; Robinson, J C; Spiller, E; Baker, S L; Dollar, F J; Gullikson, E M

2006-02-22T23:59:59.000Z

354

Comparison between arc drops in ignited thermionic converters with and without ion reflections at the emitter  

SciTech Connect (OSTI)

The output performance of two thermionic energy converters is compared. One converter has a normal emitter, working with zero field at the emitter which is close to the optimum working point, and the other has a low work function emitter and ion reflection at the emitter. A simple model of the plasma and the sheaths shows that a converter working with a low work function emitter and ion reflections gives a worse performance than a similar converter with a normal emitter.

Lundgren, L.

1985-07-01T23:59:59.000Z

355

Design consistency and driver error as reflected by driver workload and accident rates  

E-Print Network [OSTI]

DESIGN CONSISTENCY AND DRIVER ERROR AS REFLECTED BY DRIVER WORKLOAD AND ACCIDENT RATES A Thesis by MARK DOUGLAS WOOLDRIDGE Approved as to style and content by: Daniel B. Fambro (Chair of Committee) Raymond A. Krammes (Member) Olga J.... Pendleton (Member) James T. P. Yao (Head of Department) May 1992 ABSTRACT Design Consistency and Driver Error as Reflected by Driver Workload and Accident Rates (May 1992) Mark Douglas Wooldridge, B. S. , Texas A&M University Chair of Advisory...

Wooldridge, Mark Douglas

1992-01-01T23:59:59.000Z

356

Study of the potential of near-infrared reflectance spectroscopy in the analysis of the tree foliage intake of goats  

E-Print Network [OSTI]

Study of the potential of near-infrared reflectance spectroscopy in the analysis of the tree whether near-infrared reflectance spec- troscopy (NIRS) could be of future use in the analysis of the food

Boyer, Edmond

357

The effects of experiential learning with an emphasis on reflective writing on deep-level processing of agricultural leadership students  

E-Print Network [OSTI]

are instrumental in the development of students. Experiential learning, and, more importantly, reflective writing are important components of college instructors? repertoires. Learning is not complete without proper reflection. The purpose of this study...

Moore, Copie D.

2010-01-16T23:59:59.000Z

358

Reflective Cracking Study: First-level Report on HVS Testing on Section 588RF - 90 mm AR4000-DOverlay  

E-Print Network [OSTI]

testing being performed to validate Caltrans overlay strategies for the rehabilitation of cracked asphalt concrete.concrete. It describes the results of the fourth HVS reflective cracking testingconcrete. It describes the results of the fourth HVS reflective cracking testing

Jones, David; Wu, R; Harvey, John T

2008-01-01T23:59:59.000Z

359

Reflective Cracking Study: First-Level Report on HVS Testing on Section 590RF - 90 mm MB4-G Overlay  

E-Print Network [OSTI]

testing being performed to validate Caltrans overlay strategies for the rehabilitation of cracked asphalt concrete.concrete. It describes the results of the first HVS reflective cracking testingconcrete. It describes the results of the first HVS reflective cracking testing

Jones, David; Tsai, Bor-Wen; Harvey, John T

2008-01-01T23:59:59.000Z

360

Optical Reflection Spectroscopy of Thick Corrosion Layers on 304 Stainless Steel  

SciTech Connect (OSTI)

Corrosion resistant structural materials of both iron and nickel based alloys are used in the electric power industry for the construction of the coolant loops of both conventional and nuclear power generating stations. These materials, in the presence of high temperature (e.g. 287 C), high pH (e.g. 10.0 {at} 20 C) water with dissolved hydrogen will oxidize and form corrosion films that are double metal oxides (or spinels) of the form AB{sub 2}O{sub 4}. This work describes optical reflectivity techniques that have been developed to study the growth of these films in situ. The optical technique uses a dual-beam specular reflection spectrometer to measure the spectrum of reflected light in small angle (i.e. < 15{sup o}) scatter. The reflection spectra are then calibrated using a set of corrosion coupons with corrosion films that are well known. Results are compared with models based on multilayer reflection and Mie scattering from a particle size distribution. Surface roughness is found to be the dominant cause of reduced reflection as the films grow.

R Castelli; P Persans; W Strohmayer; V Parkinson

2006-03-23T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Fracture detection in crystalline rock using ultrasonic reflection techniques: Volume 1  

SciTech Connect (OSTI)

This research was initiated to investigate using ultrasonic seismic reflection techniques to detect fracture discontinuities in a granitic rock. Initial compressional (P) and shear (SH) wave experiments were performed on a 0.9 {times} 0.9 {times} 0.3 meter granite slab in an attempt to detect seismic energy reflected from the opposite face of the slab. It was found that processing techniques such as deconvolution and array synthesis could improve the standout of the reflection event. During the summers of 1979 and 1980 SH reflection experiments were performed at a granite quarry near Knowles, California. The purpose of this study was to use SH reflection methods to detect an in situ fracture located one to three meters behind the quarry face. These SH data were later analyzed using methods similar to those applied in the laboratory. Interpretation of the later-arriving events observed in the SH field data as reflections from a steeply-dipping fracture was inconclusive. 41 refs., 43 figs., 7 tabs.

Palmer, S.P. (Lawrence Berkeley Lab., CA (USA))

1982-11-01T23:59:59.000Z

362

Summary Leaf reflectance at visible and near-infrared wavelengths (4001000 nm) is related primarily to pigmenta-  

E-Print Network [OSTI]

Summary Leaf reflectance at visible and near-infrared wavelengths (400­1000 nm) is related physiology and relationships between plants and their growth environment. We studied reflectance of two co collected from 24 sites and white spruce from 30 sites. Overall, reflectance spectra of the two species were

Richardson, Andrew D.

363

Release Path Temperatures of Shock-Compressed Tin from Dynamic Reflectance and Radiance Measurements  

SciTech Connect (OSTI)

Dynamic reflectance and radiance measurements were conducted for tin samples shock compressed to 35 GPa and released to 15 GPa using high explosives. We determined the reflectance of the tin samples glued to lithium fluoride windows using an integrating sphere with an internal xenon flashlamp as an illumination source. The dynamic reflectance (R) was determined at near normal incidence in four spectral bands with coverage in visible and near-infrared spectra. Uncertainties in R/R0 are < 2%, and uncertainties in absolute reflectance are < 5%. In complementary experiments, thermal radiance from the tin/glue/lithium fluoride interface was recorded with similar shock stress and spectral coverage as the reflectance measurements. The two sets of experiments were combined to obtain the temperature history of the tin surface with an uncertainty of < 2%. The stress at the interface was determined from photonic Doppler velocimetry and combined with the temperatures to obtain temperature-stress release paths for tin. We discuss the relationship between the experimental release paths and release isentropes that begin on the principal shock Hugoniot.

La Lone, B. M. [NSTec; Stevens, G. D. [NSTec; Turley, W. D. [NSTec; Holtkamp, D. B. [LANL; Iverson, A. J. [NSTec; Hixson, R. S. [NSTec; Veeser, L. R. [NSTec

2013-08-01T23:59:59.000Z

364

High-reflectivity Cr/Sc multilayer condenser for compact soft x-ray microscopy  

SciTech Connect (OSTI)

The condenser is a critical component in compact water-window x-ray microscopes as it influences the exposure time via its efficiency and the resolution via its numerical aperture. Normal-incidence multilayer mirrors can reach large geometrical collection efficiencies and match the numerical aperture of the zone plate but require advanced processing for high total reflectivity. In the present article we demonstrate large-diameter normal-incidence spherical Cr/Sc multilayer condensers with high and uniform reflectivity. Dc-magnetron sputtering was used to deposit 300 bilayers of Cr/Sc with a predetermined d-spacing matching the {lambda}=3.374 nm operating wavelength on spherical substrates. The mirrors show a uniform reflectivity of {approx}3% over the full 58 mm diameter condenser area. With these mirrors an improvement in exposure time by a factor of 10 was achieved, thereby improving the performance of the compact x-ray microscope significantly.

Stollberg, H.; Yulin, S.; Takman, P. A. C.; Hertz, H. M. [Biomedical and X-Ray Physics, Department of Applied Physics, KTH-AlbaNova, 10691 Stockholm (Sweden); Fraunhofer-Institut fur Angewandte Optik und Feinmechanik, Albert-Einstein-Strasse 7, 07745 Jena (Germany); Biomedical and X-Ray Physics, Department of Applied Physics, KTH-AlbaNova, 10691 Stockholm (Sweden)

2006-12-15T23:59:59.000Z

365

Simulations of reflected radio signals from cosmic ray induced air showers  

E-Print Network [OSTI]

We present the calculation of coherent radio pulses emitted by extensive air showers induced by ultra-high energy cosmic rays accounting for reflection on the Earth's surface. Results have been obtained with a simulation program that calculates the contributions from shower particles after reflection at a surface plane. The properties of the radiation are discussed in detail emphasizing the effects of reflection. The shape of the frequency spectrum is shown to be closely related to the angle of the observer with respect to shower axis, becoming hardest in the Cherenkov direction. The intensity of the flux at a fixed observation angle is shown to scale with the square of the primary particle energy to very good accuracy indicating the coherent aspect of the emission. The simulation methods of this paper provide the foundations for energy reconstruction of experiments looking at the Earth from balloons and satellites. They can also be used in dedicated studies of existing and future experimental proposals.

Alvarez-Muñiz, Jaime; García-Fernández, Daniel; Schoorlemmer, Harm; Zas, Enrique

2015-01-01T23:59:59.000Z

366

Reflection of electromagnetic waves from mixtures of plane gravitational and scalar waves  

E-Print Network [OSTI]

We consider colliding wave packets consisting of hybrid mixtures of electromagnetic, gravitational and scalar waves. Irrespective of the scalar field, the electromagnetic wave still reflects from the gravitational wave. Some reflection processes are given for different choice of packets in which the Coulomb-like component $\\Psi_2$ vanishes. Exact solution for multiple reflection of an electromagnetic wave from successive impulsive gravitational waves is obtained in a closed form. It is shown that a succesive sign flip in the Maxwell spinor arises as a result of encountering with an impulsive train (i.e. the Dirac's comb curvature) of gravitational waves. Such an observable effect may be helpful in the detection of gravitational wave bursts.

Ozay Gurtug; Mustafa Halilsoy; Ozlem Unver

2006-08-22T23:59:59.000Z

367

An effective medium study of surface plasmon polaritons in nanostructured gratings using attenuated total reflection  

SciTech Connect (OSTI)

Recent work studied surface plasmon resonances in structured materials by the method of attenuated total reflection using a prism on top of a metallic grating. That calculation considered Transverse Magnetic polarized radiation, involved an expansion in 121 Fourier modes, and found a number of interesting features. Many of these features were attributed to localized plasmons or other factors, which arise from a discrete structure. We use a simple effective medium theory to address the same problem, and find many of the same reflection features observed in the more complex calculation, indicating that localization is not an important factor. We also evaluate the possibility of using some of the new features in the reflection spectrum for bio-sensing and find that the sensitivity of the system to small changes in relative permittivity is increased compared to some standard methods.

Tyboroski, M. H.; Anderson, N. R.; Camley, R. E. [UCCS BioFrontiers Center, University of Colorado at Colorado Springs, Colorado Springs, Colorado 80918 (United States)

2014-01-07T23:59:59.000Z

368

Ion-acoustic shocks with reflected ions: modeling and PIC simulations  

E-Print Network [OSTI]

Non-relativistic collisionless shock waves are widespread in space and astrophysical plasmas and are known as efficient particle accelerators. However, our understanding of collisionless shocks, including their structure and the mechanisms whereby they accelerate particles remains incomplete. We present here the results of numerical modeling of an ion-acoustic collisionless shock based on one-dimensional (1D) kinetic approximation both for electrons and ions with a real mass ratio. Special emphasis is made on the shock-reflected ions as the main driver of shock dissipation. The reflection efficiency, velocity distribution of reflected particles and the shock electrostatic structure are studied in terms of the shock parameters. Applications to particle acceleration in geophysical and astrophysical shocks are discussed.

Liseykina, T; Vshivkov, V; Malkov, M

2015-01-01T23:59:59.000Z

369

Flash Lamp Integrating Sphere Technique for Measuring the Dynamic Reflectance of Shocked Materials  

SciTech Connect (OSTI)

Accurate reflectance (R) measurements of metals undergoing shock wave compression can benefit high pressure research in several ways. For example, pressure dependent reflectance measurements can be used to deduce electronic band structure, and discrete changes with pressure or temperature may indicate the occurrence of a phase boundary. Additionally, knowledge of the wavelength dependent emissivity (1 -R, for opaque samples) of the metal surface is essential for accurate pyrometric temperature measurement because the radiance is a function of both the temperature and emissivity. We have developed a method for measuring dynamic reflectance in the visible and near IR spectral regions with nanosecond response time and less than 1.5% uncertainty. The method utilizes an integrating sphere fitted with a xenon flash-lamp illumination source. Because of the integrating sphere, the measurements are insensitive to changes in surface curvature or tilt. The in-situ high brightness of the flash-lamp exceeds the sample’s thermal radiance and also enables the use of solid state detectors for recording the reflectance signals with minimal noise. Using the method, we have examined the dynamic reflectance of gallium and tin subjected to shock compression from high explosives. The results suggest significant reflectance changes across phase boundaries for both metals. We have also used the method to determine the spectral emissivity of shock compressed tin at the interface between tin and a LiF window. The results were used to perform emissivity corrections to previous pyrometry data and obtain shock temperatures of the tin/LiF interface with uncertainties of less than 2%.

Stevens, Gerald [National Security Technologies, LLC; La Lone, Brandon [National Security Technologies, LLC; Veeser, Lynn [National Security Technologies, LLC; Hixson, Rob [National Security Technologies, LLC; Holtkamp, David [Los Alamos National Laboratory

2013-07-08T23:59:59.000Z

370

Reflecting Absence  

E-Print Network [OSTI]

Fox, and asked the owner, Jimmy Awad, if I could borrowfinalists. I went back to Jimmy Awad’s model shop, this timetogether over a few short days. Jimmy is from Syria, and the

Arad, Michael

2009-01-01T23:59:59.000Z

371

Passivating overcoat bilayer for multilayer reflective coatings for extreme ultraviolet lithography  

DOE Patents [OSTI]

A passivating overcoat bilayer is used for multilayer reflective coatings for extreme ultraviolet (EUV) or soft x-ray applications to prevent oxidation and corrosion of the multilayer coating, thereby improving the EUV optical performance. The overcoat bilayer comprises a layer of silicon or beryllium underneath at least one top layer of an elemental or a compound material that resists oxidation and corrosion. Materials for the top layer include carbon, palladium, carbides, borides, nitrides, and oxides. The thicknesses of the two layers that make up the overcoat bilayer are optimized to produce the highest reflectance at the wavelength range of operation. Protective overcoat systems comprising three or more layers are also possible.

Montcalm, Claude (Livermore, CA); Stearns, Daniel G. (Los Altos, CA); Vernon, Stephen P. (Pleasanton, CA)

1999-01-01T23:59:59.000Z

372

Reflectivity of linear and nonlinear gamma radiated apodized chirped Bragg grating under ocean  

SciTech Connect (OSTI)

In this paper, the effect Co{sup 60} gamma radiation is investigated on the effective refractive index of apodized chirped Bragg grating. Nine apodization profiles are considered. Comparison between the reflectivity of the gamma radiated and non radiated fiber Bragg grating has been carried out. The electric field of signals propagating through the apodized chirped fiber Bragg grating (ACFBG) is first calculated from which, new values for the refractive index are determined. The nonlinear effects appear on the ACFBG reflectivity. The effect of nonlinearity and undersea temperature and pressure on the grating is also studied.

Hamdalla, Taymour A. [Faculty of Science, Alexandria University, Alexandria (Egypt); Faculty of Science, Tabuk University, Tabuk (Saudi Arabia)

2012-09-06T23:59:59.000Z

373

EVALUATION OF THE SACCHAROFLEX 2000 REFLECTANCE MEASURING INSTRUMENT FOR REFINED SUGAR COLOUR ESTIMATION AT HULETTS REFINERY  

E-Print Network [OSTI]

Due to the successful use of the Saccharoflex 2000 reflectance measurement instrument on the estimation of refined sugar colour elsewhere in the world, it was decided by Tongaat-Hulett Sugar to evaluate the instrument at the refinery in Durban. Tests were carried out on first, second, third and fourth refined sugars, the results of which showed a good correlation between the ICUMSA colour measurement and the reflectance reading obtained from the Saccharoflex 2000. The instrument offers a number of advantages, the main one being that a refined sugar colour value can be obtained in less than a minute. The refinery has therefore purchased one for process control.

M Moodley; N K Padayachee; V Govender

374

Comparing Local and Global Software Effort Estimation Models Reflections on a Systematic Review  

E-Print Network [OSTI]

protocols. Keywords: D.2.9.b Cost estimation, project effort prediction, systematic review, empirical of practice in the form of benchmarking, assessment of current activities, estimation of future tasksComparing Local and Global Software Effort Estimation Models ­ Reflections on a Systematic Review

375

Green's function retrieval from reflection data, in absence of a receiver at the virtual source position  

E-Print Network [OSTI]

Green's function retrieval from reflection data, in absence of a receiver at the virtual source; accepted 6 March 2014) The methodology of Green's function retrieval by cross-correlation has led to many, a virtual source is created at the position of a receiver. Here a method is discussed for Green's function

Snieder, Roel

376

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS G(e, 1, n)  

E-Print Network [OSTI]

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS G(e, 1, n.Introduction Green polynomials Q~~(q) of GLn(Fq), where ~, ~ are partitions of n, were fi* *rst introduced by J.A.Green [G] in 1955 in a combinatorial framework of symmetric f* *unc- tions

Shoj, Toshiaki

377

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS G(e, 1, n)  

E-Print Network [OSTI]

GREEN FUNCTIONS ASSOCIATED TO COMPLEX REFLECTION GROUPS G(e, 1, n) TOSHIAKI SHOJI Department of Mathematics Science University of Tokyo Noda, Chiba 278­8510, Japan 0. Introduction Green polynomials Q µ # (q) of GL n (F q ), where #, µ are partitions of n, were first introduced by J.A.Green [G] in 1955

Shoj, Toshiaki

378

Neutron Reflectivity Study of Lipid Membranes Assembled on Ordered Nanocomposite and Nanoporous Silica Thin  

E-Print Network [OSTI]

moleculestrappedwithinthenanocompositethinfilmmay be used to detect trans-membrane transport (e.g., ion channel function). Furthermore, the ability in facilitating molecular transport across the membrane plane. In this regard, the use of ultrathin polymericNeutron Reflectivity Study of Lipid Membranes Assembled on Ordered Nanocomposite and Nanoporous

Parikh, Atul N.

379

Evolution of the Cerro Prieto geothermal system as interpreted from vitrinite reflectance under isothermal conditions  

SciTech Connect (OSTI)

Temperature estimates from reflectance data in the Cerro Prieto system correlate with modern temperature logs and temperature estimates from fluid inclusion and oxygen isotope geothermometry indicating that the temperature in the central portion of the Cerro Prieto System is now at its historical maximum. Isoreflectance lines formed by contouring vitrinite reflectance data for a given isothermal surface define an imaginary surface that indicates an apparent duration of heating in the system. The 250/sup 0/C isothermal surface has a complex dome-like form suggesting a localized heat source that has caused shallow heating in the central portion of this system. Isoreflectance lines relative to this 250/sup 0/C isothermal surface define a zone of low reflectance roughly corresponding to the crest of the isothermal surface. Comparison of these two surfaces suggest that the shallow heating in the central portion of Cerro Prieto is young relative to the heating (to 250/sup 0/C) on the system margins. Laboratory and theoretical models of hydrothermal convection cells suggest that the form of the observed 250/sup 0/C isothermal surface and the reflectance surface derived relative to it results from the convective rise of thermal fluids under the influence of a regional hydrodynamic gradient that induces a shift of the hydrothermal heating effects to the southwest.

Barker, C.E. (US Geological Survey, Denver, CO); Pawlewicz, M.J.; Bostick, N.H.; Elders, W.A.

1981-01-01T23:59:59.000Z

380

Diffraction and external reflection by dielectric faceted particles Lei Bi a,, Ping Yang b  

E-Print Network [OSTI]

approximate methods; the surface-integral method (SIM), the volume-integral method (VIM), and the diffraction matrix in the SIM and the VIM are presented in an explicit form. Of interest is that diffraction and external reflection are separable in the SIM, whereas they are combined in the VIM. A feature of zero

Baum, Bryan A.

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Selective reflection spectroscopy of a vapour at a calcium fluoride interface  

E-Print Network [OSTI]

Selective reflection spectroscopy of a vapour at a calcium fluoride interface T. Passerat de Silans materials exhibit surface resonances located in the thermal infrared. This makes them interesting to search for a fundamental temperature dependence of the atom-surface interaction, originating in the near-field thermal

Paris-Sud XI, Université de

382

Needle-based reflection refractometry of scattering samples using coherence-gated  

E-Print Network [OSTI]

effects of internal refractive index variation in near-infrared optical tomography: a finite element, and K. D. Paulsen, "Effects of refractive index on near- infrared tomography of the breast," Appl. OptNeedle-based reflection refractometry of scattering samples using coherence-gated detection Adam M

Boppart, Stephen

383

Reflecting the Current Practices of Technology Use in Volunteer Data Collection Activities on  

E-Print Network [OSTI]

and usage rate of mobile technologies in volunteer activities has been low. Nonprofit organizations, which is no different. Currently, the common usage pattern of mobile technology in nonprofits' volunteer activitiesReflecting the Current Practices of Technology Use in Volunteer Data Collection Activities

384

MDE and Mobile agents: another reflection on the agent migration Tahar GHERBI  

E-Print Network [OSTI]

MDE and Mobile agents: another reflection on the agent migration Tahar GHERBI Computer science code. Mobile agents are a very interesting technology to develop applications for mobile and distributed environments. A mobile agent is essentially a computer program that acts autonomously on behalf

Paris-Sud XI, Université de

385

Observed radar reflectivity in convectively coupled Kelvin and mixed Rossby-gravity waves  

E-Print Network [OSTI]

be measurable from surface gauges (>0.5 mm/hr). Addition- ally, the area of radar echo at each height of a normalized probability density function (PDF) of radar echo intensity at that level. Our analysis uses radarObserved radar reflectivity in convectively coupled Kelvin and mixed Rossby-gravity waves A. Swann

Yuter, Sandra

386

Validation and determination of ice water content-radar reflectivity relationships during CRYSTAL-  

E-Print Network [OSTI]

an empirical IWC-radar relflectivity Ze relationship. The comparisons show that for measurements of in situ IWC and remotely measured radar reflectivity, collocated within 2 km of each other, a single IWC-Ze relationship this level of uncertainty to be consistent with sampling errors associated with comparing two measurements

387

Explicit Reflection in Prolog-Tutor Josephine Tchetagni, Roger Nkambou, GDAC, Computer Science Department, UQM,  

E-Print Network [OSTI]

@licef.teluq.uquebec.ca Abstract. This paper describes a reflection-based approach for open learner modeling (OLM). Tutoring these strategies. The main contribution of this approach to OLM is that it provides a set of principled theories. Furthermore, an evaluation of such a principled approach to OLM is straightforward in certain

Paris-Sud XI, Université de

388

Perception, 26, 807-822 Effects of Texture, Illumination and Surface Reflectance on Stereoscopic  

E-Print Network [OSTI]

Perception, 26, 807-822 Effects of Texture, Illumination and Surface Reflectance on Stereoscopic Shape Perception James T. Todd1, J. Farley Norman2, Jan J. Koenderink3, Astrid M. L. Kappers3 1 with many other animals. For the ecology of human observers, however, this cost is apparently out- weighed

Todd, James T.

389

Philosophy enables us to reflect on questions of who we are and  

E-Print Network [OSTI]

Philosophy Philosophy enables us to reflect on questions of who we are and how we should live. It is crucial to intelligent decision making in all spheres of life. Students of philosophy have made important contributions to life across the spectrum of occupations. www.uwindsor.ca/philosophy Studying philosophy

390

The 1954 Tenth Solvay Congress on "Electrons in Metals": Some Professional and Personal Reflections  

E-Print Network [OSTI]

The 1954 Tenth Solvay Congress on "Electrons in Metals": Some Professional and Personal Reflections interaction in metals was explored in depth, the 1954 Solvay Congress on "Electrons in Metals". At 30, I was its youngest participant. The memoir below celebrates the Solvay anniversary and the participants

Ostoja-Starzewski, Martin

391

Reflection high-energy electron diffraction from carbon nanotubes Jason T. Drotar,1  

E-Print Network [OSTI]

Reflection high-energy electron diffraction from carbon nanotubes Jason T. Drotar,1 B. Q. Wei,2 Y of the nanotubes was determined, from the energy-loss spectrum, to be 52 12 nm. DOI: 10.1103/PhysRevB.64-walled carbon nanotubes using reflec- tion high-energy electron diffraction RHEED .9 However, it should

Wang, Gwo-Ching

392

Ice iron/sodium film as cause for high noctilucent cloud radar reflectivity  

E-Print Network [OSTI]

Ice iron/sodium film as cause for high noctilucent cloud radar reflectivity P. M. Bellan1 Received] Noctilucent clouds, tiny cold electrically charged ice grains located at about 85 km altitude, exhibit by assuming the ice grains are coated by a thin metal film; substantial evidence exists indicating

Bellan, Paul M.

393

National Center for Digital Government Reflections on The Fog of (Cyber)War  

E-Print Network [OSTI]

National Center for Digital Government Reflections on The Fog of (Cyber)War Diego. These assertions are: (a) Cyberspace is a new operational domain for waging war; (b) Cyber warfare can be as severe, it aims at reconnecting the idea of "fog of war" to its Clausewitzian roots, highlighting the importance

Schweik, Charles M.

394

Singlehole GPR reflection imaging of solute transport in a granitic aquifer  

E-Print Network [OSTI]

Singlehole GPR reflection imaging of solute transport in a granitic aquifer Caroline Dorn,1 Niklas mmaperture fractures. A dipole tracer test was performed in a granitic aquifer by injecting a saline solution of solute transport in a granitic aquifer, Geophys. Res. Lett., 38, L08401, doi:10.1029/ 2011GL047152. 1

Paris-Sud XI, Université de

395

ForPeerReview Influence of woody elements of a Norway spruce canopy on nadir reflectance  

E-Print Network [OSTI]

ForPeerReview Only Influence of woody elements of a Norway spruce canopy on nadir reflectance) for a simulated Norway spruce canopy was performed at a very high spatial resolution (modelling resolution 0.2 m the Norway spruce canopy as being composed of i) leaves, ii) leaves, trunks and first order branches

Paris-Sud XI, Université de

396

Degradation of polymer/substrate interfaces an attenuated total reflection Fourier transform infrared spectroscopy approach  

E-Print Network [OSTI]

Degradation of polymer/substrate interfaces ­ an attenuated total reflection Fourier transform-co-vinyl acetate) (PVB) and ZnSe upon exposure to ozone, humidity and UV-B light. Also, the response of PVB ether of bisphenol A)-aluminum interfaces. In the presence of ozone, humidity and UV-B radiation

397

Plant, Celt and Environment ()99&) 19, 159-170 Contribution of intercellular reflectance to photosynthesis in  

E-Print Network [OSTI]

Biology, University of Illinois, tJrbana, Illinois 61HOI, atui'DepartmetU of Botany, University of WyotniAicia. Deparlment of Planl Biology. University of Illinois, Urbana, Illinois 6l{iOI, USA. cellular reflectance absorption, energy balance and gaseous diffusion. Despite the potential importance of leaf anatomy

DeLucia, Evan H.

398

First-order design of off-axis reflective ophthalmic adaptive optics systems using afocal  

E-Print Network [OSTI]

First-order design of off-axis reflective ophthalmic adaptive optics systems using afocal for designing laser cavities, spectrographs and adaptive optics retinal imaging systems. The use, range respectively. This is discussed using examples from adaptive optics retinal imaging systems. The performance

399

Characterization of material degradation in ceramic matrix composites using infrared reflectance spectroscopy  

SciTech Connect (OSTI)

Ceramic matrix composite materials for thermal protection systems are required to maintain operational performance in extreme thermal and mechanical environments. In-service inspection of materials capable of assessing the degree and extent of damage and degradation will be required to ensure the safety and readiness of future air vehicles. Infrared reflectance spectroscopy is an established material characterization technique capable of extracting information regarding the chemical composition of substances. The viability of this technique as a potentially powerful nondestructive evaluation method capable of monitoring degradation in thermal protection system materials subjected to extreme mechanical and thermal environments is analyzed. Several oxide-based and non-oxide-based ceramic matrix composite materials were stressed to failure in a high temperature environment and subsequently measured using infrared reflectance spectroscopy. Spectral signatures at locations along the length of the samples were compared resulting in distinct and monotonic reflectance peak changes while approaching the fracture point. The chemical significance of the observed signatures and the feasibility of infrared reflectance nondestructive evaluation techniques are discussed.

Cooney, Adam T.; Flattum-Riemers, Richard Y. [Air Force Research Laboratory, Materials and Manufacturing Directorate, NonDestructive Evaluation Branch, Wright-Patterson AFB, OH (United States); Scott, Benjamin J. [Universal Technology Corporation, Dayton, OH (United States)

2011-06-23T23:59:59.000Z

400

Infrared reflectance and transmission spectra in II-VI alloys and superlattices  

E-Print Network [OSTI]

Room temperature measurements of the far-infrared (FIR) reflectance spectra are reported for the polar optical phonons in a series of bulk Cd[subscript x]Zn[subscript 1?x]Te (0 ? x ? 1) and CdSe[subscript x]Te[subscript ...

Talwar, Devki N.

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Improving performance of reflectance diffuse optical imaging using a multicentered mode  

E-Print Network [OSTI]

DOI, near-infrared light irradiates the brain tissues through optical fibers, and is received by detec- tors multicentered mode for arrangement of optical fibers to improve the imaging performance of reflectance dif- fuse, such overlapping measurements were mainly obtained by the geometric ar- rangement of optical fibers. Several

Jiang,Tianzi

402

Carotenoid Gene Nucleotide Diversity Reflects Carrot History and J. Clotault1  

E-Print Network [OSTI]

Carotenoid Gene Nucleotide Diversity Reflects Carrot History and Selection J. Clotault1 , Emmanuel. The purpose of our work was to study the nucleotide diversity of carotenoid biosynthesis genes. A sample of 48). Compared to other species, a quite high single nucleotide (SNP) frequency was found for these genes (1

Paris-Sud XI, Université de

403

DOI: 10.1002/adfm.200700251 Control of Specular and Diffuse Reflection of Light Using Particle  

E-Print Network [OSTI]

reflectors are widely used in the back-light units of liquid crystal display (LCD) panels,[1­4] light-emitting diodes (LED)[5,6] and solar cell devices.[7,8] A perfect diffuse reflector is matter that reflects and low solar absorption, metals easily satisfy the general requirements for diffuse reflectors

Lee, Ilsoon

404

V-band Transmission and Reflection Grid Amplifier Packaged in Waveguide  

E-Print Network [OSTI]

for thermal management by allowing the heat sink to be mounted on one side of the grid array. It also reduces and cooling fan were used to remove heat from the chip. The temperature distribution across the grid aperture1 V-band Transmission and Reflection Grid Amplifier Packaged in Waveguide Chun-Tung Cheung1 , Roger

405

3D Tracking via Body Radio Reflections Fadel Adib Zachary Kabelac Dina Katabi Robert C. Miller  

E-Print Network [OSTI]

3D Tracking via Body Radio Reflections Fadel Adib Zachary Kabelac Dina Katabi Robert C. Miller Massachusetts Institute of Technology Abstract ­ This paper introduces WiTrack, a system that tracks the 3D the field of human-computer interaction by enabling 3D motion tracking without instrumenting the body

Polz, Martin

406

Reflection of Nonlinear Acoustic Waves from the Mechanically Free Surface of an Unconsolidated Granular Medium  

E-Print Network [OSTI]

1 Reflection of Nonlinear Acoustic Waves from the Mechanically Free Surface of an Unconsolidated a mechanically free surface of an unconsolidated granular layer under gravity is solved analytically using of the acoustic experiments directed to the investigation of fundamental mechanical properties of unconsolidated

Paris-Sud XI, Université de

407

Movement of oxygen vacancies in oxide film during annealing observed by an optical reflectivity difference technique  

E-Print Network [OSTI]

Movement of oxygen vacancies in oxide film during annealing observed by an optical reflectivity. The growth and annealing of the film in vacuum and in oxygen ambient are monitored in real time by an oblique tell whether the oxygen vacancies are moving into or moving out of the film during the annealing

Zhu, Xiangdong

408

Using sheep preference, near infrared reflectance and laboratory tests for predicting voluntary intake  

E-Print Network [OSTI]

Using sheep preference, near infrared reflectance and laboratory tests for predicting voluntary for grinding ; N, NDF, ADF ; in vitro DMD ; and 4 promising second derivatives of the near infrared spectrum in VDMI, gas production methods lose their predictive ability in favour of in sacco methods. Near Infrared

Boyer, Edmond

409

Campus Sustainability Plan "UCSC's commitment to sustainability reflects one of our most closely held campus values  

E-Print Network [OSTI]

1 Campus Sustainability Plan "UCSC's commitment to sustainability reflects one of our most closely, which inspired faculty and staff to join in. Today, sustainability is a campuswide commitment, and our, Chancellor 2013­16 #12;2 1 From the Chancellor-- UC Santa Cruz is serious about sustainability, and our

California at Santa Cruz, University of

410

Using Frontier Points to Recover Shape, Reflectance and Illumination George Vogiatzis  

E-Print Network [OSTI]

Using Frontier Points to Recover Shape, Reflectance and Illumination George Vogiatzis Paolo Favaro on the so-called frontier points, which are extracted from the outlines of an object. Frontier points illumination. We also show how to apply frontier points for shape recovery in photomet- ric stereo

Jäger, Gerhard

411

THEORETICAL REFLECTIONS ABOUT EDUCATION FOR SUSTAINABLE DEVELOPMENT CONCEPT :CULTURAL AND TERRITORIAL DIMENSIONS AS  

E-Print Network [OSTI]

1 THEORETICAL REFLECTIONS ABOUT EDUCATION FOR SUSTAINABLE DEVELOPMENT CONCEPT :CULTURAL-Luc FAUGUET, Yves ALPE ADEF Université de Provence, CASE 49 3, Place Victor Hugo- 13 331 Marseille Cedex 03 angela.barthes@univ-provence.fr Keywords :Education for sustainable development, international dimensions

Boyer, Edmond

412

High-amplitude reflection packets (HARPs) of the Mississippi Fan, Gulf of Mexico  

E-Print Network [OSTI]

Examination of seismic data from the deep-water Gulf of Mexico reveals the presence of High-Amplitude Reflection Packets (HARPs). An analog study conducted by the Ocean Drilling Program Leg 155 identified and described Amazon Fan HARPs as a stacked...

Francis, Jason Michael

2000-01-01T23:59:59.000Z

413

Computer Graphics Volume 15, Number3 August 1981 A REFLECTANCE MODEL FOR COMPUTER GRAPHICS  

E-Print Network [OSTI]

Computer Graphics Volume 15, Number3 August 1981 A REFLECTANCE MODEL FOR COMPUTER GRAPHICS Robert L. Cook Program of Computer Graphics Cornell University Ithaca, New York 14853 Kenneth E. Torrance Sibley with incidence angle. The paper presents a method for obtaining the spectral energy distribution of the light

O'Brien, James F.

414

Potential Economic Impacts of Marcellus Shale in Pennsylvania: Reflections on the Perryman Group Analysis from Texas  

E-Print Network [OSTI]

Potential Economic Impacts of Marcellus Shale in Pennsylvania: Reflections on the Perryman Group The exploration and development of the Marcellus Shale natural gas play has significant potential to affect in the Barnett Shale region of north Texas. The Barnett Shale play is very similar in geology to the Marcellus

Boyer, Elizabeth W.

415

Reflective responsibility for risk: a critical view of software and information systems development risk  

E-Print Network [OSTI]

in moral philosophy. As a general idea of how the ethical problems of risk can be addressed, this paperReflective responsibility for risk: a critical view of software and information systems development risk management Bernd Carsten Stahl Faculty of Computer Science and Engineering, Centre for Computing

De Montfort University

416

Reflection on a model of accident reporting to help to implement efficient prevention strategies  

E-Print Network [OSTI]

Reflection on a model of accident reporting to help to implement efficient prevention strategies to deliver the relevant action plan especially to control occupational accidents. The aim of the article is to present our approach to analyze the classical Heinrich's model of occupational accidents and the classical

Boyer, Edmond

417

High Mercury Concentrations Reflect Trophic Ecology of Three Deep-Water Chondrichthyans  

E-Print Network [OSTI]

High Mercury Concentrations Reflect Trophic Ecology of Three Deep-Water Chondrichthyans Michael C concentrations were explored for three deep-water chondrichthyans (Etmopterus princeps, Cen- troscymnus position in the trophic web (as indicated by differences in d15 N). Mercury is a major contaminant

Newman, Michael C.

418

Theoretical analysis of reflected ray error from surface slope error and their application to the solar concentrated collector  

E-Print Network [OSTI]

Surface slope error of concentrator is one of the main factors to influence the performance of the solar concentrated collectors which cause deviation of reflected ray and reduce the intercepted radiation. This paper presents the general equation to calculate the standard deviation of reflected ray error from slope error through geometry optics, applying the equation to calculate the standard deviation of reflected ray error for 5 kinds of solar concentrated reflector, provide typical results. The results indicate that the slope error is transferred to the reflected ray in more than 2 folds when the incidence angle is more than 0. The equation for reflected ray error is generally fit for all reflection surfaces, and can also be applied to control the error in designing an abaxial optical system.

Huang, Weidong

2011-01-01T23:59:59.000Z

419

Effects of composition and exposure on the solar reflectance of Portland cement concrete  

SciTech Connect (OSTI)

Increasing the solar reflectance (albedo) of a paved surface keeps it cooler in the sun, reducing convection of heat from pavement to air and thereby decreasing the ambient air temperature. Simulations of the influence of pavement albedo on air temperature in Los Angeles predict that increasing the albedo of 1,250 km2 of pavement by 0.25 would save cooling energy worth $15M yr-1, and reduce smog-related medical and lost-work expenses by $76M yr-1. Most sidewalks and a small fraction of roads and parking areas are paved with portland cement concrete, which can be made quite reflective through suitable choice of cement and aggregate. Variations with composition and environmental exposure of the albedos of portland cement concrete pavements were investigated through laboratory fabrication and exposure of 32 mixes of concrete. Twenty-four mixes yielded substandard, ''rough'' concretes due to high, unmet aggregate water demand. The albedos of the remaining eight ''smooth'' concrete mixes ranged from 0.41 to 0.77 (mean 0.59). Simulated weathering, soiling, and abrasion each reduced average concrete albedo (mean decreases 0.06, 0.05, and 0.19, respectively), though some samples became slightly more reflective through weathering or soiling. Simulated rain (wetting) strongly depressed the albedos of concretes (mean decrease 0.23) until their surfaces were dried. Concrete albedo grew as the cement hydration reaction progressed (mean increase 0.08), but stabilized within six weeks of casting. White-cement concretes were on average significantly more reflective than gray-cement concretes. The albedo of the most-reflective white-cement concrete was 0.18 to 0.39 higher than that of the most-reflective gray-cement concrete, depending on state of exposure. Concrete albedo generally correlated with cement albedo and sand albedo, and, after abrasion, with rock albedo. Cement albedo had a disproportionately strong influence on the reflectance of concrete. Efflorescence and surface carbonation whitened some gray-cement mixes.

Levinson, Ronnen; Akbari, Hashem

2001-12-21T23:59:59.000Z

420

Method and apparatus for detecting the presence and thickness of carbon and oxide layers on EUV reflective surfaces  

DOE Patents [OSTI]

The characteristics of radiation that is reflected from carbon deposits and oxidation formations on highly reflective surfaces such as Mo/Si mirrors can be quantified and employed to detect and measure the presence of such impurities on optics. Specifically, it has been shown that carbon deposits on a Mo/Si multilayer mirror decreases the intensity of reflected HeNe laser (632.8 nm) light. In contrast, oxide layers formed on the mirror should cause an increase in HeNe power reflection. Both static measurements and real-time monitoring of carbon and oxide surface impurities on optical elements in lithography tools should be achievable.

Malinowski, Michael E.

2005-01-25T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

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

SciTech Connect (OSTI)

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

422

Mössbauer spectroscopy, magnetic characteristics, and reflection loss analysis of nickel-strontium substituted cobalt ferrite nanoparticles  

SciTech Connect (OSTI)

In current research work, Co{sub 1-x}Ni{sub x/2}Sr{sub x/2}Fe{sub 2}O{sub 4} (x?=?0–1 in a step of 0.2) ferrite nanoparticles were synthesized by a sol-gel method. According to the evolution in the subspectral areas obtained from Mössbauer spectroscopy, it was found that the relaxing iron belongs mostly to the site B, since the Mössbauer fraction of site A does not vary appreciably. With an increase in Ni-Sr substitution contents in cobalt ferrite, the coercivity and saturation of magnetization decrease. Variation of reflection loss versus frequency in microwave X-band demonstrates that the reflection peak shifts to lower frequency by adding substituted cations and the synthesized nanoparticles can be considered for application in electromagnetic wave absorber technology.

Ghasemi, Ali, E-mail: ali13912001@yahoo.com [Materials Engineering Department, Malek Ashtar University of Technology, Shahin Shahr (Iran, Islamic Republic of); Paesano, Andrea; Cerqueira Machado, Carla Fabiana [Departamento de Física, Centro de Ciências Exatas, Universidade Estadual de Maringá, Maringá (Brazil); Shirsath, Sagar E. [Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad (India); Spin Device Technology Center, Faculty of Engineering, Shinshu University, Nagano (Japan); Liu, Xiaoxi; Morisako, Akimitsu [Spin Device Technology Center, Faculty of Engineering, Shinshu University, Nagano (Japan)

2014-05-07T23:59:59.000Z

423

Analyses of Greek Research Reactor with mixed HEU-LEU Be reflected core  

SciTech Connect (OSTI)

The fuel-cycle analyses presented in this paper provide specific steps to be taken in the transition from a 36-element water-reflected HEU core to a 33-element LEU equilibrium core with a Be reflector on two faces. The first step will be to install the Be reflector and remove the highest burnup HEU fuel. The smaller Be-reflected core will be refueled with LEU fuel. All analyses were performed using a planar 5-group REBUS3 model benchmarked to VIM Monte Carlo. In addition to fuel cycle results, the control rod worth, reactivity response to increased fuel and water temperature and decreased water density were compared for the transition core and the reference HEU core.

Deen, J.R.; Snelgrove, J.L. [Argonne National Lab., IL (United States); Papastergiou, K. [National Center for Scientific Research, Athens (Greece)

1993-12-31T23:59:59.000Z

424

"Non-Reflective" Boundary Design via Remote Sensing and PID Control Valve  

SciTech Connect (OSTI)

This paper develops the concept of a nonreflective (or semireflective) boundary condition using the combination of a remote sensor and a control system to modulate a relief valve. The essential idea is to sense the pressure change at a remote location and then to use the measured data to adjust the opening of an active control valve at the end of the line to eliminate or attenuate the wave reflections at the valve, thus controlling system transient pressures. This novel idea is shown here through numerical simulation to have considerable potential for transient protection. Using this model, wave reflections and resonance can be effectively eliminated for frictionless pipelines or initial no-flow conditions and can be better controlled in more realistic pipelines for a range of transient disturbances. In addition, the features of even-order harmonics and nonreflective boundary conditions during steady oscillation, obtained through time domain transient analysis, are verified by hydraulic impedance analysis in the frequency domain.

Zhang, Qin Fen [ORNL] [ORNL; Karney, Professor Byran W. [University of Toronto, Canada] [University of Toronto, Canada; Pejovic, Dr. Stanislav [University of Toronto, Canada] [University of Toronto, Canada

2011-01-01T23:59:59.000Z

425

Octupole deformation and Ra puzzle in reflection asymmetric covariant density functional theory  

E-Print Network [OSTI]

Reflection asymmetric covariant density functional theory(CDFT) based on the point-coupling interaction is established on a two-center harmonic-oscillator basis and applied to investigate the Ra puzzle, i.e., the anomalous enhancement of the residual proton-neutron interactions for Ra isotopes around N=135. The octupole deformation and shape evolution in the Ra and Rn isotopes are examined in the potential energy surfaces in(beta2, beta3) plane by the constrained reflection asymmetric calculations. The residual proton-neutron interactions extracted from the double difference of the binding energies for Ra isotopes are compared with the data as well as the axial and the triaxial calculations. It is found that the octupole deformation is responsible for the Ra puzzle in the microscopic CDFT.

L. F. Yu; P. W. Zhao; S. Q. Zhang; J. Meng

2012-11-03T23:59:59.000Z

426

Photoreflectance and reflectance investigation of deuterium-irradiated GaAsN  

SciTech Connect (OSTI)

The effect of deuterium irradiation on the optical and strain properties of GaAsN/GaAs heterostructures was investigated by photoreflectance and reflectance techniques. The strain occurring in as-grown and deuterated GaAsN layers is monitored and measured by means of photoreflectance spectroscopy, highlighting the strain inversion after irradiation. By combining static and modulated reflectance results, evidence is given that the deuterium-induced recovery of the GaAs band gap as well as the strain inversion in GaAsN layers are accompanied by a 0.4%-0.8% reduction of the refractive index in the 1.31 and 1.55 {mu}m spectral windows of interest for fiber optic communications. These results anticipate a single step process to an in-plane confinement of carriers and photons.

Geddo, M.; Ciabattoni, T.; Guizzetti, G.; Galli, M.; Patrini, M.; Polimeni, A.; Trotta, R.; Capizzi, M.; Bais, G.; Piccin, M.; Rubini, S.; Martelli, F.; Franciosi, A. [CNISM-Dipartimento di Fisica Universita di Parma, Viale delle Scienze 7a, I-43100 Parma (Italy); CNISM-Dipartimento di Fisica 'A. Volta', Universita di Pavia, Via Bassi 6, I-27100 Pavia (Italy); CNISM-Dipartimento di Fisica, Universita 'La Sapienza', P.le A. Moro 2, 00185 Rome (Italy); Laboratorio Nazionale TASC-INFM-CNR, Area Science Park, S.S. 14, Km. 163.5, 34012 Trieste (Italy)

2007-02-26T23:59:59.000Z

427

Intra-Cavity Total Reflection For High Sensitivity Measurement Of Optical Properties  

DOE Patents [OSTI]

An optical cavity resonator device is provided for conducting sensitive murement of optical absorption by matter in any state with diffraction-limited spatial resolution through utilization of total internal reflection within a high-Q (high quality, low loss) optical cavity. Intracavity total reflection generates an evanescent wave that decays exponentially in space at a point external to the cavity, thereby providing a localized region where absorbing materials can be sensitively probed through alteration of the Q-factor of the otherwise isolated cavity. When a laser pulse is injected into the cavity and passes through the evanescent state, an amplitude loss resulting from absorption is incurred that reduces the lifetime of the pulse in the cavity. By monitoring the decay of the injected pulse, the absorption coefficient of manner within the evanescent wave region is accurately obtained from the decay time measurement.

Pipino, Andrew C. R. (Gaithersburg, MD); Hudgens, Jeffrey W. (Rockville, MD)

1999-08-24T23:59:59.000Z

428

Intra-Cavity Total Reflection For High Sensitivity Measurement Of Optical Properties  

DOE Patents [OSTI]

An optical cavity resonator device is provided for conducting sensitive murement of optical absorption by matter in any state with diffraction-limited spatial resolution through utilization of total internal reflection within a high-Q (high quality, low loss) optical cavity. Intracavity total reflection generates an evanescent wave that decays exponentially in space at a point external to the cavity, thereby providing a localized region where absorbing materials can be sensitively probed through alteration of the Q-factor of the otherwise isolated cavity. When a laser pulse is injected into the cavity and passes through the evanescent state, an amplitude loss resulting from absorption is incurred that reduces the lifetime of the pulse in the cavity. By monitoring the decay of the injected pulse, the absorption coefficient of manner within the evanescent wave region is accurately obtained from the decay time measurement.

Pipino, Andrew Charles Rule (Gaithersburg, MD)

1999-11-16T23:59:59.000Z

429

A simple scanning spectrometer based on a stretchable elastomeric reflective grating  

SciTech Connect (OSTI)

We report a scanning optical spectrometer based on the use of a stretchable elastomeric reflective grating. The grating is obtained by supersonic cluster beam implantation of silver nanoparticles on polydimethylsiloxane previously grooved by molding to create a replica of a commercial digital versatile disk grating. The use of a stretchable grating allows the spectrometer spanning the whole optical wavelength range by solely extending the diffraction element by more than 100% of its original dimensions. The stretchable reflective optical grating shows excellent performances and stability upon thousands of stretching cycles. The use of this elastomeric element makes the optical layout and the mechanics of the spectrometer extremely simple and advantageous for those applications where spectral resolution is not a major requirement. As a proof of principle, we present the absorption spectrum of Rhodamine B in solution obtained by our spectrometer and compared to commercial instruments.

Ghisleri, C.; Milani, P., E-mail: paolo.milani@mi.infn.it [CIMAINA and Dipartimento di Fisica, Università di Milano, via Celoria 16, 20133 Milano (Italy); WISE srl, Piazza Duse 2, 20122 Milano (Italy); Potenza, M. A. C.; Bellacicca, A. [CIMAINA and Dipartimento di Fisica, Università di Milano, via Celoria 16, 20133 Milano (Italy); Ravagnan, L. [WISE srl, Piazza Duse 2, 20122 Milano (Italy)

2014-02-10T23:59:59.000Z

430

/II sifu reflection electron energy loss spectroscopy measurements of low temperature surface cleaning for Si molecular beam epitaxy  

E-Print Network [OSTI]

/II sifu reflection electron energy loss spectroscopy measurements of low temperature surface cleaning for Si molecular beam epitaxy Shouleh Nikzad, Selmer S. Wong, Channing C. Ahn, Aimee L. Smith molecular beam epitaxy system, using reflection electron energy loss spectroscopy, in conjunction

Atwater, Harry

431

Comparison and detection of total and available soil carbon fractions using visible/near infrared diffuse reflectance spectroscopy  

E-Print Network [OSTI]

. With the advent of visible/near-infrared-diffuse reflectance spectroscopy (VNIR-DRS) to infer on soil C fractionsComparison and detection of total and available soil carbon fractions using visible/near infrared diffuse reflectance spectroscopy D.V. Sarkhot a,1,2 , S. Grunwald a, , Y. Ge b,3 , C.L.S. Morgan c,4

Grunwald, Sabine

432

DO THE INFRARED EMISSION FEATURES NEED ULTRAVIOLET EXCITATION? THE POLYCYCLIC AROMATIC HYDROCARBON MODEL IN UV-POOR REFLECTION NEBULAE  

E-Print Network [OSTI]

'' PAHs in reflection nebulae near stars as cool as Teff ¼ 3000 K can result in observable emis- sion at 6DO THE INFRARED EMISSION FEATURES NEED ULTRAVIOLET EXCITATION? THE POLYCYCLIC AROMATIC HYDROCARBON MODEL IN UV-POOR REFLECTION NEBULAE Aigen Li and B. T. Draine Department of Astrophysical Sciences

Draine, Bruce T.

433

Local order measurement in SnGe alloys and monolayer Sn films on Si with reflection electron energy loss spectrometry  

E-Print Network [OSTI]

fine structure EXELFS data obtained by reflection electron energy loss spectrometry REELS-range order obtained using reflection high energy electron diffraction. The results suggest that EXELFS synthesis of artificial structures with abrupt strain and composition profiles. Re- flection high energy

Atwater, Harry

434

Infrared reflection of GaN and AlGaN thin film heterostructures with AlN buffer layers  

E-Print Network [OSTI]

Infrared reflection of GaN and AlGaN thin film heterostructures with AlN buffer layers C. Wetzel, Nagoya, Japan Received 11 December 1995; accepted for publication 21 February 1996 Infrared reflection, their alloys and potential substrates need to be investigated as well. Here we present a study of the infrared

Wetzel, Christian M.

435

Adsorption and Reaction of NO on Cu(100): An Infrared Reflection Absorption Spectroscopic Study at 25 K  

E-Print Network [OSTI]

Adsorption and Reaction of NO on Cu(100): An Infrared Reflection Absorption Spectroscopic Study oxide (NO) on a Cu(100) surface at 25 K has been studied using infrared reflection absorption to the Cu(100) surface. Heating to 55 K leads to reorientation of the dimer molecules in the multilayer

Goodman, Wayne

436

Materials Science and Engineering B72 (2000) 5658 High-temperature infrared reflectivity of yttria-stabilized hafnia  

E-Print Network [OSTI]

and to follow its development upon heating in order to check for presence of possible effects in far infraredMaterials Science and Engineering B72 (2000) 56­58 Letter High-temperature infrared reflectivity Prague 8, Czech Republic Received 11 November 1999 Abstract Infrared reflectivity spectra of cubic yttria

KuÂ?el, Petr

437

The effect of encapsulation on the reflectance of photovoltaic modules using textured multicrystalline-silicon solar cells  

SciTech Connect (OSTI)

Texturing multicrystalline-silicon cells is a promising technique for reducing reflectance losses. We investigated two methods for texturing multicrystalline-silicon solar cells - anisotropic chemical etch and mechanical dicing saw. Our work emphasized reducing reflectance in the encapsulated module by using optical confinement in the module. We found that optical confinement in the module is very important in the optimization of texture geometries.

Gee, J.M.; Schubert, W.K.; Tardy, H.L.; Hund, T.D. [Sandia National Labs., Albuquerque, NM (United States); Robison, G. [Semiconductor Assembly Network, Prescott Valley, AZ (United States)

1995-01-01T23:59:59.000Z

438

Whole House Thermal Performance of Asphalt Shingles Exploiting Special Infrared Reflective Pigments  

E-Print Network [OSTI]

are single-family detached houses (State of California 2000). In California, residential air-conditioning loads represent almost 14% of the summer peak demand, the equivalent of over 7,000 MW of peak capacity during a hot California summer day... surface temperatures reduce the cooling- energy demand of the building and could increase the life of the roof product. However, determining the effects of climate and solar exposure on reflectance and color variability over time is of paramount...

Hahn, L.; Miller, W.; Desjarlais, A.; Jacobs, J.; Youngquist, A.

2006-01-01T23:59:59.000Z

439

Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain  

SciTech Connect (OSTI)

Solar reflectance can vary with the spectral and angular distributions of incident sunlight, which in turn depend on surface orientation, solar position and atmospheric conditions. A widely used solar reflectance metric based on the ASTM Standard E891 beam-normal solar spectral irradiance underestimates the solar heat gain of a spectrally selective 'cool colored' surface because this irradiance contains a greater fraction of near-infrared light than typically found in ordinary (unconcentrated) global sunlight. At mainland U.S. latitudes, this metric RE891BN can underestimate the annual peak solar heat gain of a typical roof or pavement (slope {le} 5:12 [23{sup o}]) by as much as 89 W m{sup -2}, and underestimate its peak surface temperature by up to 5 K. Using R{sub E891BN} to characterize roofs in a building energy simulation can exaggerate the economic value N of annual cool-roof net energy savings by as much as 23%. We define clear-sky air mass one global horizontal ('AM1GH') solar reflectance R{sub g,0}, a simple and easily measured property that more accurately predicts solar heat gain. R{sub g,0} predicts the annual peak solar heat gain of a roof or pavement to within 2 W m{sup -2}, and overestimates N by no more than 3%. R{sub g,0} is well suited to rating the solar reflectances of roofs, pavements and walls. We show in Part II that R{sub g,0} can be easily and accurately measured with a pyranometer, a solar spectrophotometer or version 6 of the Solar Spectrum Reflectometer.

Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul

2010-05-14T23:59:59.000Z

440

Thin film transistors on plastic substrates with reflective coatings for radiation protection  

DOE Patents [OSTI]

Fabrication of silicon thin film transistors (TFT) on low-temperature plastic substrates using a reflective coating so that inexpensive plastic substrates may be used in place of standard glass, quartz, and silicon wafer-based substrates. The TFT can be used in large area low cost electronics, such as flat panel displays and portable electronics such as video cameras, personal digital assistants, and cell phones.

Wolfe, Jesse D.; Theiss, Steven D.; Carey, Paul G.; Smith, Patrick M.; Wickboldt, Paul

2003-11-04T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

Thin film transistors on plastic substrates with reflective coatings for radiation protection  

DOE Patents [OSTI]

Fabrication of silicon thin film transistors (TFT) on low-temperature plastic substrates using a reflective coating so that inexpensive plastic substrates may be used in place of standard glass, quartz, and silicon wafer-based substrates. The TFT can be used in large area low cost electronics, such as flat panel displays and portable electronics such as video cameras, personal digital assistants, and cell phones.

Wolfe, Jesse D. (Fairfield, CA); Theiss, Steven D. (Woodbury, MN); Carey, Paul G. (Mountain View, CA); Smith, Patrick M. (San Ramon, CA); Wickbold, Paul (Walnut Creek, CA)

2006-09-26T23:59:59.000Z

442

Optimization of experimental conditions in IR reflectance determination of BPSG properties  

SciTech Connect (OSTI)

Experiments were performed to examine sensitivity of thin-film property determinations to several experimental variables when applying multivariate calibration methods to infrared reflection spectroscopic data. Results indicate that low angles of incidence are best for robust quantitative determination of boron, phosphorus, and film thickness in borophosphosilicate glass (BPSG) dielectric films. However, the polarization state of the incidence beam does not affect the quantitative prediction ability.

Zhang, L.; Franke, J.E.; Niemczyk, T.M. [New Mexico Univ., Albuquerque, NM (United States). Dept. of Chemistry; Haaland, D.M. [Sandia National Labs., Albuquerque, NM (United States)

1993-11-01T23:59:59.000Z

443

Some effects of range upon AN/CPS-9 radar reflectivities in thunderstorms  

E-Print Network [OSTI]

SOMB BFFBCTS OF RANGE UPON AN/CPS-9 RADAR RBFLECTIVITIBS IN THUNDBRSTORMS A Thesis Tommy Eugene Sanford Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE January 1961 Major Subject: Meteorology SOME EFFECI'S OF RANGE UPON AN/CPS-9 RADAR REFLECTIVITIES IN THUNDERSTORMS A Thesis Tommy Eugene Sanford Approved as to style and content by: (Chairman of Committe ) 4~4 (Head...

Sanford, Tom E

1961-01-01T23:59:59.000Z

444

Reflection type of terahertz imaging system using a high-T{sub c} superconducting oscillator  

SciTech Connect (OSTI)

A reflection type of imaging system is shown at sub-terahertz frequencies generated from high-T{sub c} superconducting intrinsic Josephson junction mesa structures fabricated by single crystalline Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+?} to demonstrate how the sub-terahertz imaging technique using monochromatic radiation is powerful and unique for the variety of practical applications. Several examples are discussed in detail and are compared to other terahertz imaging systems.

Kashiwagi, T.; Minami, H.; Kadowaki, K. [Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8571 (Japan); Division of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8573 (Japan); Nakade, K.; Saiwai, Y.; Kitamura, T.; Watanabe, C.; Ishida, K.; Sekimoto, S.; Asanuma, K.; Yasui, T.; Shibano, Y. [Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, Ibaraki 305-8571 (Japan); Markovi?, B.; Mirkovi?, J. [Faculty of Sciences, University of Montenegro, George Washington Str., 81000 Podgorica (Montenegro); Tsujimoto, M. [Department of Electronic Science and Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510 (Japan); Yamamoto, T. [National Institute for Materials Science, Wide Bandgap Materials Group, Optical and Electronic Materials Unit, Environment and Energy Materials Division, 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)

2014-01-13T23:59:59.000Z

445

X-ray reflectivity studies of the metal/solution interphase  

SciTech Connect (OSTI)

We have designed an electrochemical cell that permits x-ray scattering studies in a transmission geometry under in-situ electrochemical control and have performed x-ray specular reflectivity studies of several metal/solution interphases as a function of electrochemical potential. For the copper/solution interphase, we found that the reflectivity changes upon oxidation and reduction, indicating a phase transition between copper and copper oxide at the interphase. We also found that the thickness of the pure copper and the roughness of the interfaces exhibited electrochemical irreversibility that is consistent with the potentials for the oxidation waves in the anodic sweep and the reduction waves in the cathodic sweep of the voltammogram. A standard Fresnel expression for the x-ray specular reflectivity was applied in the data analysis, and a smoothly varying Lorentzian interface profile was used for the individual rough interfaces. Furthermore, an incoherent average was used to include the effect of correlated roughness between a pair of interfaces. Preliminary results are also presented for the silver/solution and platinum/solution interphases. 14 refs., 9 figs., 2 tabs.

You, H.; Nagy, Z.; Melendres, C.A.; Zurawski, D.J.; Chiarello, R.P.; Yonco, R.M.; Kim, H.K.; Maroni, V.A.

1991-09-01T23:59:59.000Z

446

Retrieval of Aerosol Optical Depth in Vicinity of Broken Clouds from Reflectance Ratios: Sensitivity Study  

SciTech Connect (OSTI)

We conducted a sensitivity study to better understand the potential of a new method for retrieving aerosol optical depth (AOD) under partly cloudy conditions. This method exploits reflectance ratios in the visible spectral range and provides an effective way to avoid three-dimensional (3D) cloud effects. The sensitivity study is performed for different observational conditions and random errors in input data. The results of the sensitivity study suggest that this ratio method has the ability to detect clear pixels even in close proximity to clouds. Such detection does not require a statistical analysis of the two-dimensional (2D) horizontal distribution of reflected solar radiation, and thus it could be customized for operational retrievals. In comparison with previously suggested approaches, the ratio method has the capability to increase the "harvest" of clear pixels. Similar to the traditional Independent Pixel Approximation (IPA), the ratio method has a low computational cost for retrieving AOD. In contrast to the IPA method, the ratio method provides much more accurate estimations of the AOD values under broken cloud conditions: pixel-based and domain-averaged estimations of errors in AOD are about 25% and 10%, respectively. Finally, both the ratio-based cloud screening and the accuracy of domain-averaged ratio-based AOD values do not suffer greatly when 5% random errors are introduced in the reflectances.

Kassianov, Evgueni I.; Ovtchinnikov, Mikhail; Berg, Larry K.; McFarlane, Sally A.; Flynn, Connor J.

2009-09-01T23:59:59.000Z

447

The puzzle of the soft X-ray excess in AGN: absorption or reflection?  

E-Print Network [OSTI]

The 2-10 keV continuum of AGN is generally well represented by a single power law. However, at smaller energies the continuum displays an excess with respect to the extrapolation of this power law, called the ''soft X-ray excess''. Until now this soft X-ray excess was attributed, either to reflection of the hard X-ray source by the accretion disk, or to the presence of an additional comptonizing medium, giving a steep spectrum. An alternative solution proposed by Gierlinski and Done (2004) is that a single power law well represents both the soft and the hard X-ray emission and the impression of the soft X-ray excess is due to absorption of a primary power law by a relativistic wind. We examine the advantages and drawbacks of reflection versus absorption models, and we conclude that the observed spectra can be well modeled, either by absorption (for a strong excess), or by reflection (for a weak excess). However the physical conditions required by the absorption models do not seem very realistic: we would pref...

Chevallier, Loïc; Dumont, A M; Czerny, B; Mouchet, M; Gonçalves, A C; Goosmann, R W

2006-01-01T23:59:59.000Z

448

The puzzle of the soft X-ray excess in AGN: absorption or reflection?  

E-Print Network [OSTI]

The 2-10 keV continuum of AGN is generally well represented by a single power law. However, at smaller energies the continuum displays an excess with respect to the extrapolation of this power law, called the ''soft X-ray excess''. Until now this soft X-ray excess was attributed, either to reflection of the hard X-ray source by the accretion disk, or to the presence of an additional comptonizing medium, giving a steep spectrum. An alternative solution proposed by Gierlinski and Done (2004) is that a single power law well represents both the soft and the hard X-ray emission and the impression of the soft X-ray excess is due to absorption of a primary power law by a relativistic wind. We examine the advantages and drawbacks of reflection versus absorption models, and we conclude that the observed spectra can be well modeled, either by absorption (for a strong excess), or by reflection (for a weak excess). However the physical conditions required by the absorption models do not seem very realistic: we would prefer an ''hybrid model''.

L. Chevallier; S. Collin; A. -M. Dumont; B. Czerny; M. Mouchet; A. C. Goncalves; R. W. Goosmann

2006-01-19T23:59:59.000Z

449

Seismic reflection imaging of underground cavities using open-source software  

SciTech Connect (OSTI)

The Comprehensive Nuclear Test Ban Treaty (CTBT) includes provisions for an on-site inspection (OSI), which allows the use of specific techniques to detect underground anomalies including cavities and rubble zones. One permitted technique is active seismic surveys such as seismic refraction or reflection. The purpose of this report is to conduct some simple modeling to evaluate the potential use of seismic reflection in detecting cavities and to test the use of open-source software in modeling possible scenarios. It should be noted that OSI inspections are conducted under specific constraints regarding duration and logistics. These constraints are likely to significantly impact active seismic surveying, as a seismic survey typically requires considerable equipment, effort, and expertise. For the purposes of this study, which is a first-order feasibility study, these issues will not be considered. This report provides a brief description of the seismic reflection method along with some commonly used software packages. This is followed by an outline of a simple processing stream based on a synthetic model, along with results from a set of models representing underground cavities. A set of scripts used to generate the models are presented in an appendix. We do not consider detection of underground facilities in this work and the geologic setting used in these tests is an extremely simple one.

Mellors, R J

2011-12-20T23:59:59.000Z

450

NuSTAR SPECTROSCOPY OF GRS 1915+105: DISK REFLECTION, SPIN, AND CONNECTIONS TO JETS  

SciTech Connect (OSTI)

We report on the results of spectral fits made to a NuSTAR observation of the black hole GRS 1915+105 in a 'plateau' state. This state is of special interest because it is similar to the 'low/hard' state seen in other black holes, especially in that compact, steady jets are launched in this phase. The 3-79 keV bandpass of NuSTAR, and its ability to obtain moderate-resolution spectra free from distortions such as photon pile-up, are extremely well suited to studies of disk reflection in X-ray binaries. In only 15 ks of net exposure, an extraordinarily sensitive spectrum of GRS 1915+105 was measured across the full bandpass. Ionized reflection from a disk around a rapidly spinning black hole is clearly required to fit the spectra; even hybrid Comptonization models including ionized reflection from a disk around a Schwarzschild black hole proved inadequate. A spin parameter of a = 0.98 ± 0.01 (1? statistical error) is measured via the best-fit model; low spins are ruled out at a high level of confidence. This result suggests that jets can be launched from a disk extending to the innermost stable circular orbit. A very steep inner disk emissivity profile is also measured, consistent with models of compact coronae above Kerr black holes. These results support an emerging association between the hard X-ray corona and the base of the relativistic jet.

Miller, J. M.; King, A. L. [Department of Astronomy, The University of Michigan, 500 Church Street, Ann Arbor, MI 48109-1046 (United States)] [Department of Astronomy, The University of Michigan, 500 Church Street, Ann Arbor, MI 48109-1046 (United States); Parker, M. L.; Fabian, A. C. [Institute of Astronomy, The University of Cambridge, Madingley Road, Cambridge CB3 OHA (United Kingdom)] [Institute of Astronomy, The University of Cambridge, Madingley Road, Cambridge CB3 OHA (United Kingdom); Fuerst, F.; Walton, D. J. [Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, 91125 (United States)] [Cahill Center for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, 91125 (United States); Bachetti, M.; Harrison, F. A.; Barret, D.; Grefenstette, B. W. [Universite de Toulouse, UPS-OMP, F-31400 Toulouse (France)] [Universite de Toulouse, UPS-OMP, F-31400 Toulouse (France); Boggs, S. E.; Tomsick, J. A. [Space Sciences Laboratory, University of California, Berkeley, 7 Gauss Way, Berkeley, CA 94720-7450 (United States)] [Space Sciences Laboratory, University of California, Berkeley, 7 Gauss Way, Berkeley, CA 94720-7450 (United States); Chakrabarty, D. [Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 70 Vassar Street, Cambridge, MA 02139 (United States)] [Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 70 Vassar Street, Cambridge, MA 02139 (United States); Christensen, F. E. [Danish Technical University, DK-2800 Lyngby (Denmark)] [Danish Technical University, DK-2800 Lyngby (Denmark); Craig, W. W. [Lawrence Livermore National Laboratory, Livermore, CA (United States)] [Lawrence Livermore National Laboratory, Livermore, CA (United States); Hailey, C. J. [Columbia University, New York, NY 10027 (United States)] [Columbia University, New York, NY 10027 (United States); Stern, D. K. [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States)] [Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109 (United States); Zhang, W. W., E-mail: jonmm@umich.edu [NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

2013-10-01T23:59:59.000Z

451

Reflection seismic profiling in Wabash Valley fault system in southwestern Indiana  

SciTech Connect (OSTI)

During the summer of 1988 common-depth-point (CDP) reflection seismic profiling was initiated by ARPEX in southwestern Indiana in the Wabash Valley fault system. A 2.2-im (1.4-mi) east-west profile was shot across the Mt. Vernon graben in Posey County. Minihole shooting in 21-m (68.9-ft) patterns using 3.4 kg (7.5 lb) of seismic explosives distributed in five 3-m (10-ft) holes provided the energy source. Most shotholes were made with a reversible air-driven penetrating tool that was effective in dense clays. The 12-geophone array length was 43 m (141 ft), and the nominal far-trace offset was 2.1 km (7,000 ft). A 48-channel recording yielded 24-CDP coverage at 11-m (36-ft) intervals. Data were enhanced by gapped deconvolution, bandpass filtering, and CDP stack. The strongest and most continuous reflections at 0.75 and 1.6 sec are associated with the New Albany Shale (Devonian-Mississippian) and Eau Claire Formation (Cambrian), respectively. Within the Mt. Vernon graben and east of the Spenser Consolidated oil field, the depth to Eau Claire Formation apparently increases by approximately 60 m (197 ft) over a horizontal distance of 1.4 km (0.9 mi). Minor faulting east of the Spencer Consolidated field appears to be synthetic to the Hovey lake fault, which bounds the eastern side of the Mt. Vernon graben. Tentative interpretations of faulting and weak reflections from depths greater than 4.5 km (15,000 ft) may be clarified by additional data processing and by additional seismic profiling planned by ARPEX.

Rene, R.M.; Hester, N.C.; Stanonis, F.L. (Indiana Univ., Bloomington (USA))

1989-08-01T23:59:59.000Z

452

Validation of FSP Reactor Design with Sensitivity Studies of Beryllium-Reflected Critical Assemblies  

SciTech Connect (OSTI)

The baseline design for space nuclear power is a fission surface power (FSP) system: sodium-potassium (NaK) cooled, fast spectrum reactor with highly-enriched-uranium (HEU)-O2 fuel, stainless steel (SS) cladding, and beryllium reflectors with B4C control drums. Previous studies were performed to evaluate modeling capabilities and quantify uncertainties and biases associated with analysis methods and nuclear data. Comparison of Zero Power Plutonium Reactor (ZPPR)-20 benchmark experiments with the FSP design indicated that further reduction of the total design model uncertainty requires the reduction in uncertainties pertaining to beryllium and uranium cross-section data. Further comparison with three beryllium-reflected HEU-metal benchmark experiments performed at the Oak Ridge Critical Experiments Facility (ORCEF) concluded the requirement that experimental validation data have similar cross section sensitivities to those found in the FSP design. A series of critical experiments was performed at ORCEF in the 1960s to support the Medium Power Reactor Experiment (MPRE) space reactor design. The small, compact critical assembly (SCCA) experiments were graphite- or beryllium-reflected assemblies of SS-clad, HEU-O2 fuel on a vertical lift machine. All five configurations were evaluated as benchmarks. Two of the five configurations were beryllium reflected, and further evaluated using the sensitivity and uncertainty analysis capabilities of SCALE 6.1. Validation of the example FSP design model was successful in reducing the primary uncertainty constituent, the Be(n,n) reaction, from 0.28 %dk/k to 0.0004 %dk/k. Further assessment of additional reactor physics measurements performed on the SCCA experiments may serve to further validate FSP design and operation.

John D. Bess; Margaret A. Marshall

2013-02-01T23:59:59.000Z

453

Performance of "Moth Eye" Anti-Reflective Coatings for Solar Cell Applications  

SciTech Connect (OSTI)

An inexpensive, effective anti-reflective coating (ARC) has been developed at the University of Florida to significantly enhance the absorption of light by silicon in solar cells. This coating has nano-scale features, and its microstructure mimics that of various night active insects (e.g. a moth's eye). It is a square array of pillars, each about 700 nm high and having a diameter of about 300 nm. Samples of silicon having this coating were exposed either to various combinations of either elevated temperature and humidity or to gamma irradiation ({sup 60}Co) at the Savannah River National Laboratory, or to a broad spectrum ultraviolet light and to a 532 nm laser light at the University of Florida. The anti-reflective properties of the coatings were unaffected by any of these environmental stresses, and the microstructure of the coating was also unaffected. In fact, the reflectivity of the gamma irradiated ARC became lower (advantageous for solar cell applications) at wavelengths between 400 and 1000 nm. These results show that this coating is robust and should be tested in actual systems exposed to either weather or a space environment. Structural details of the ARCs were studied to optimize their performance. Square arrays performed better than hexagonal arrays - the natural moth-eye coating is indeed a square array. The optimal depth of the templated nanopillars in the ARC was investigated. A wet etching technology for ARC formation was developed that would be less expensive and much faster than dry etching. Theoretical modeling revealed that dimple arrays should perform better than nipple arrays. A method of fabricating both dimple and nipple arrays having the same length was developed, and the dimple arrays performed better than the nipple arrays, in agreement with the modeling. The commercial viability of the technology is quite feasible, since the technology is scalable and inexpensive. This technology is also compatible with current industrial fabrication of solar cells.

Clark, E.; Kane, M.; Jiang, P.

2011-03-14T23:59:59.000Z

454

Seismic reflection imaging of a geothermal aquifer in an urban setting  

SciTech Connect (OSTI)

A seismic reflection survey that was conducted in downtown Boise, Idaho, to help city planners site a new well for injection of spent geothermal water illustrates some methods to safely and successfully employ a seismic reflection survey in an urban setting. The objective of the seismic survey was to estimate the depth and continuity of a basalt and rhyolite volcanic sequence. Well siting was based on geothermal aquifer depth, location of interpreted faults, projected thermal impact of injection on existing wells, surface pipe extension costs, and public land availability. Seismic acquisition tests and careful processing were used to ensure high-quality data while minimizing the potential for damage along city streets. A video camera placed in a sewer and a blast vibration monitor were used to confirm that energy from the seismic source (a 75-in{sup 3} land air gun) did not damage nearby buildings, street surfaces, or buried utilities along the survey lines. Walkaway seismic tests were also used to compare signal quality of the air-gun source to an explosive source for imaging targets up to 800 m depth. These tests show less signal bandwidth from the air-gun source compared to the buried explosive source, but the air-gun signal quality was adequate to meet imaging objectives. Seismic reflection results show that the top of this rhyolite/basalt sequence dips ({approximately}8--1{degree}) southwest away from the Boise foothills at depths of 200 to 800 m. Seismic methods enabled interpretation of aquifer depths along the profiles and located fault zones where injected water may encounter fracture permeability and optimally benefit the existing producing system. The acquisition and processing techniques used to locate the Boise injection well may succeed for other hydrogeologic and environmental studies in urban settings.

Liberty, L. [Boise State Univ., ID (United States). Center for Geophysical Investigation of the Shallow Subsurface] [Boise State Univ., ID (United States). Center for Geophysical Investigation of the Shallow Subsurface

1998-07-01T23:59:59.000Z

455

Measured Energy Savings from the Application of Reflective Roofs in 3 AT&T Regeneration Buildings  

E-Print Network [OSTI]

of the buildings are about 125kWh per year (8.6 kWh/m2 [0.8 kWh/ft2 ]); at a cost of $0.1/kWh, savings are about the reflectivities increased to about 72%. In two of these buildings, we monitored savings of about 0.5kWh per day of about 13kWh per day (860 Wh/m2 [80 Wh/ft2 ]). These savings probably resulted from the differences

456

Study of photomodulated reflectance in 6H-SiC single crystals  

SciTech Connect (OSTI)

The effect of ultraviolet irradiation of the surface of silicon-carbide (6H-SiC) single crystals on their optical reflectivity in the visible and violet spectral regions is studied. It is shown that the photoreflection-signal intensity is maximal, if the light beam is incident at the Brewster angle and polarized parallel to the plane of incidence. The relative change induced in the refractive index of the surface layers of a crystal (10{sup -3}) upon exposure to nitrogen laser radiation, caused by the generation of nonequilibrium free charge carriers in the conduction band of the material, is established.

Gruzintsev, A. N., E-mail: gran@iptm.ru [Russian Academy of Sciences, Institute of Microelectronics Technology and Ultra-High-Purity Materials (Russian Federation)

2013-04-15T23:59:59.000Z

457

Increased pump acceptance bandwidth in spontaneous parametric downconversion process using Bragg reflection waveguides  

E-Print Network [OSTI]

In this paper we show that by suitably tailoring the dispersion characteristics of a Bragg reflection waveguide (BRW) mode, it is possible to achieve efficient photon pair generation over a large pump bandwidth while maintaining narrow signal bandwidth. The structure proposed consists of a high index core BRW with a periodically poled GaN core and periodically stratified cladding made up of alternate layers of $Al_{0.02}Ga_{0.98}N$ and $Al_{0.45}Ga_{0.55}N$. Such photon-pair generators should find applications in realizing compact and stable sources for quantum information processing.

K. Thyagarajan; R. Das; O. Alibart; M. de Micheli; D. B. Ostrowsky; S. Tanzilli

2009-04-11T23:59:59.000Z

458

Disruption of reflecting Bose-Einstein condensates due to interatomic interactions and quantum noise  

SciTech Connect (OSTI)

We perform fully three-dimensional simulations, using the truncated Wigner method, to investigate the reflection of Bose-Einstein condensates from abrupt potential barriers. We show that the interatomic interactions can disrupt the internal structure of a cigar-shaped cloud with a high atom density at low approach velocities, damping the center-of-mass motion and generating vortices. Furthermore, by incorporating quantum noise we show that scattering halos form at high approach velocities, causing an associated condensate depletion. We compare our results to recent experimental observations.

Scott, R. G.; Hutchinson, D. A. W.; Gardiner, C. W. [The Jack Dodd Centre for Photonics and Ultra-Cold Atoms, Department of Physics, University of Otago, P.O. Box 56, Dunedin (New Zealand)

2006-11-15T23:59:59.000Z

459

Gravity and seismic reflection studies over the Ferguson Crossing Salt Dome, Grimes and Brazos Counties, Texas  

E-Print Network [OSTI]

and not com- pletely understood f orm. The study of salt domes is important because: (1) more than four-fift'ns or all oil and gas accumulations in fields in the Gulf Coast province have been geologically affected by the growth of the salt domes (Halbouty... to obtain a Bouguer anomaly map of the Ferguson Crossing Salt Dome, (2) a seismic reflection study in order to obtain a seismic section of the area of investigation, and (3) an analysis and interpretation of these studies to obtain a reasonable model...

Cordero Ardila, Vladimir Francisco

1977-01-01T23:59:59.000Z

460

Lapped substrate for enhanced backsurface reflectivity in a thermophotovoltaic energy conversion system  

DOE Patents [OSTI]

A method for fabricating a thermophotovoltaic energy conversion cell including a thin semiconductor wafer substrate (10) having a thickness (.beta.) calculated to decrease the free carrier absorption on a heavily doped substrate; wherein the top surface of the semiconductor wafer substrate is provided with a thermophotovoltaic device (11), a metallized grid (12) and optionally an antireflective (AR) overcoating; and, the bottom surface (10') of the semiconductor wafer substrate (10) is provided with a highly reflecting coating which may comprise a metal coating (14) or a combined dielectric/metal coating (17).

Baldasaro, Paul F (Clifton Park, NY); Brown, Edward J (Clifton Park, NY); Charache, Greg W (Clifton Park, NY); DePoy, David M (Clifton Park, NY)

2000-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" 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

In situ thermal performance of APP modified bitumen roof membranes coated with reflective coatings  

SciTech Connect (OSTI)

A multi-faceted field research program regarding seven atactic polypropylene (APP) modified bitumen membrane roof systems and four reflective coatings began in 1991. This long-term project is evaluating the performance of various APP modified bitumen membranes (both coated and uncoated), the comparative performance of coating application soon after membrane installation versus preweathering, coating performance, and aspects of recoating. This paper is a progress report on the in situ thermal performance of the various types of coatings compared to the thermal performance of the exposed membrane. The thermal performance of an adjacent ballasted ethylene propylene diene terpolymer (EPDM) roofing system is also described.

Carlson, J.D.; Smith, T.L. (National Roofing Contractors Association, Rosemont, IL (United States)); Christian, J.E. (Oak Ridge National Lab., TN (United States))

1992-01-01T23:59:59.000Z

462

In situ thermal performance of APP modified bitumen roof membranes coated with reflective coatings  

SciTech Connect (OSTI)

A multi-faceted field research program regarding seven atactic polypropylene (APP) modified bitumen membrane roof systems and four reflective coatings began in 1991. This long-term project is evaluating the performance of various APP modified bitumen membranes (both coated and uncoated), the comparative performance of coating application soon after membrane installation versus preweathering, coating performance, and aspects of recoating. This paper is a progress report on the in situ thermal performance of the various types of coatings compared to the thermal performance of the exposed membrane. The thermal performance of an adjacent ballasted ethylene propylene diene terpolymer (EPDM) roofing system is also described.

Carlson, J.D.; Smith, T.L. [National Roofing Contractors Association, Rosemont, IL (United States); Christian, J.E. [Oak Ridge National Lab., TN (United States)

1992-10-01T23:59:59.000Z

463

Lapped substrate for enhanced backsurface reflectivity in a thermophotovoltaic energy conversion system  

DOE Patents [OSTI]

A method for fabricating a thermophotovoltaic energy conversion cell including a thin semiconductor wafer substrate (10) having a thickness (.beta.) calculated to decrease the free carrier absorption on a heavily doped substrate; wherein the top surface of the semiconductor wafer substrate is provided with a thermophotovoltaic device (11), a metallized grid (12) and optionally an antireflective (AR) overcoating; and, the bottom surface (10') of the semiconductor wafer substrate (10) is provided with a highly reflecting coating which may comprise a metal coating (14) or a combined dielectric/metal coating (17).

Baldasaro, Paul F; Brown, Edward J; Charache, Greg W; DePoy, David M

2000-09-05T23:59:59.000Z

464

Reflection Survey At Rye Patch Area (Laney, 2005) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access Permit5-ID-aRECRaton,RFPs| OpenJemezReflection Survey

465

Reflection Survey At San Emidio Desert Area (DOE GTP) | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access Permit5-ID-aRECRaton,RFPs| OpenJemezReflection

466

Reflection Survey At Soda Lake Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access Permit5-ID-aRECRaton,RFPs|Reflection Survey At Soda

467

Reflection Survey At The Needles Area (DOE GTP) | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access Permit5-ID-aRECRaton,RFPs|Reflection Survey At

468

Reflection Survey At Under Steamboat Springs Area (Warpinski, Et Al., 2002)  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access Permit5-ID-aRECRaton,RFPs|Reflection Survey At| Open

469

CLASS DEVIATION TO REFLECT CHANGES TO THE COOPERA TNE AUDIT STRATEGY  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up fromDepartmentTie Ltd:June 2015 <Ones |Laboratory, June 2011TO REFLECT CHANGES TO

470

4.1: Rollable Reflective Multicolor Cholesteric Displays Haiqing Xianyu, Tsung-Hsien Lin, and Shin-Tson Wu  

E-Print Network [OSTI]

reactive mesogen and none reactive cholesteric liquid crystal is observed. The electrically undulated display application. Blue Shift in Cholesteric Reactive Mesogen The electrically controllable blue shift: A rollable reflective multicolor display using an electrically tunable blue shift of both cholesteric

Wu, Shin-Tson

471

High-resolution shear-wave reflection profiling to image offset in unconsolidated near-surface sediments  

E-Print Network [OSTI]

S-wave reflection profiling has many theoretical advantages, when compared to P-wave profiling, such as high-resolution potential, greater sensitivities to lithologic changes and insensitivity to the water table and pore ...

Bailey, Bevin

2014-05-31T23:59:59.000Z

472

LANDSTREAMER/GIMBALED GEOPHONE ACQUISITION OF HIGH RESOLUTION SEISMIC REFLECTION DATA NORTH OF THE 200 AREAS HANFORD SITE  

SciTech Connect (OSTI)

Landstreamer Seismic Reflection Vender Report by Confederated Tribes of the Umatilla Indian Reservation and Montana Tech of the University of Montana, collected in FY2009 under CHPRC Contract 35789.

REPASKY TE; HYDE ER; LINK CA; SPEECE MA

2009-11-18T23:59:59.000Z

473

GEOSPATIAL ANALYSIS OF REFLECTANCE AND NDVI VALUES IN THE ANGELINA FOREST Peter P. Siska and I. K. Hung  

E-Print Network [OSTI]

GEOSPATIAL ANALYSIS OF REFLECTANCE AND NDVI VALUES IN THE ANGELINA FOREST ECOSYSTEM* Peter P. Siska International Conference on Geospatial Information in Agriculture and Forestry, Denver, Colorado, 5-7 November

Hung, I-Kuai

474

Student Preparedness Checklist K I have completed the emergency contact information in my Banner Pipeline and it accurately reflects  

E-Print Network [OSTI]

Pipeline and it accurately reflects how I want to be notified in case of an emergency. (www.pipeline. (Sign into your account at www.pipeline.wayne.edu and follow the link for Broadcast Messaging.) K My

Finley Jr., Russell L.

475

High-resolution shear-wave reflection profiling to image offset in unconsolidated near-surface sediments.  

E-Print Network [OSTI]

??S-wave reflection profiling has many theoretical advantages, when compared to P-wave profiling, such as high-resolution potential, greater sensitivities to lithologic changes and insensitivity to the… (more)

Bailey, Bevin

2014-01-01T23:59:59.000Z

476

Reflective Cracking Study: First-level Report on HVS Testing on Section 586RF - 45 mm MB15-GOverlay  

E-Print Network [OSTI]

of the asphalt concrete layer. Testing was stopped when thetesting being performed to validate Caltrans overlay strategies for the rehabilitation of cracked asphalt concrete.concrete. It describes the results of the fifth HVS reflective cracking testing

Jones, David; Wu, R; Harvey, John T

2008-01-01T23:59:59.000Z

477

Reflective Cracking Study: First-Level Report on HVS Testing on Section 589RF - 45 mm MB4-G Overlay  

E-Print Network [OSTI]

of the asphalt concrete layer. Testing was stopped when thetesting being performed to validate Caltrans overlay strategies for the rehabilitation of cracked asphalt concrete.concrete. It describes the results of the second HVS reflective cracking testing

Jones, David; Harvey, John T; Wu, R; Lea, J.

2008-01-01T23:59:59.000Z

478

Propagating and reflecting of spin wave in permalloy nanostrip with 360° domain wall  

SciTech Connect (OSTI)

By micromagnetic simulation, we investigated the interaction between propagating spin wave (or magnonic) and a 360° domain wall in a nanostrip. It is found that propagating spin wave can drive a 360° domain wall motion, and the velocity and direction are closely related to the transmission coefficient of the spin wave of the domain wall. When the spin wave passes through the domain wall completely, the 360° domain wall moves toward the spin wave source. When the spin wave is reflected by the domain wall, the 360° domain wall moves along the spin wave propagation direction. Moreover, when the frequency of the spin wave is coincident with that of the 360° domain wall normal mode, the 360° domain wall velocity will be resonantly enhanced no matter which direction the 360 DW moves along. On the other hand, when the spin wave is reflected from the moving 360° domain wall, we observed the Doppler effect clearly. After passing through a 360° domain wall, the phase of the spin wave is changed, and the phase shift is related to the frequency. Nevertheless, phase shift could be manipulated by the number of 360° domain walls that spin wave passing through.

Zhang, Senfu; Mu, Congpu; Zhu, Qiyuan; Zheng, Qi; Liu, Xianyin; Wang, Jianbo; Liu, Qingfang, E-mail: liuqf@lzu.edu.cn [Key Laboratory for Magnetism and Magnetic Materials of Ministry of Education, Lanzhou University, Lanzhou 730000 (China)

2014-01-07T23:59:59.000Z

479

Probing thermal waves on the free surface of various media: Surface Fluctuation Specular Reflection Spectroscopy  

E-Print Network [OSTI]

Thermal motion gives rise to fluctuations in free surfaces; the propagation of the thermally excited waves on such surfaces depends on the mechanical properties of the medium. Their measurement can therefore provide information on those properties. We have developed an optical tool to probe the thermally excited waves on free surfaces: Surface Fluctuation Specular Reflection (SFSR) spectroscopy. It consists in measuring the fluctuations in the position of a laser beam, which is specularly reflected onto the free surface of a medium, and is therefore sensitive to the roughness of that surface. We show how the measured signal is related to the medium properties. We also present measurements performed on Newtonian liquids as well as on a viscoelastic solid; we show that, in all cases, there is a very good agreement between experimental and computed spectra. SFSR thus applies to a broad range of materials. It moreover offers a very good temporal resolution and should provide a useful tool for dynamical measurements on complex fluids.

Astrid Tay; Caroline Thibierge; Danièle Fournier; Christian Frétigny; François Lequeux; Cécile Monteux; Jean-Paul Roger; Laurence Talini

2008-06-16T23:59:59.000Z

480

Reflection and diffraction corrections for nonlinear materials characterization by quasi-static pulse measurement  

SciTech Connect (OSTI)

A harmonic acoustic tone burst propagating through an elastic solid with quadratic nonlinearity produces not only a parallel burst of second harmonic but also an often neglected quasi-static pulse associated with the acoustic radiation-induced eigenstrain. Although initial analytical and experimental studies by Yost and Cantrell suggested that the pulse might have a right-angled triangular shape with the peak displacement at the leading edge being proportional to the length of the tone burst, more recent theoretical, analytical, numerical, and experimental studies proved that the pulse has a flat-top shape and the peak displacement is proportional to the propagation length. In this paper, analytical and numerical simulation results are presented to illustrate two types of finite-size effects. First, the finite axial dimension of the specimen cannot be simply accounted for by a linear reflection coefficient that neglects the nonlinear interaction between the combined incident and reflected fields. Second, the quasistatic pulse generated by a transducer of finite aperture suffers more severe divergence than both the fundamental and second harmonic pulses generated by the same transducer. These finite-size effects can make the top of the quasi-static pulse sloped rather than flat and therefore must be taken into consideration in the interpretation of experimental data.

Nagy, Peter B. [School of Aerospace Systems, University of Cincinnati, Cincinnati, Ohio 45221 (United States); Qu, Jianmin [Department of Civil and Environmental Engineering, Northwestern University, Evanston, Illinois 60208 (United States); Jacobs, Laurence J. [College of Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, Republic of Georgia (Georgia)

2014-02-18T23:59:59.000Z

Note: This page contains sample records for the topic "reflection radiometer aster" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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481

Seismic reflection evidence for two phase development of Tertiary basins from east-central Nevada  

SciTech Connect (OSTI)

Two east-west seismic reflection profiles crossing Antelope Valley, Smokey Valley, Railroad Valley and Big Sand Springs Valley demonstrate the evolution of Tertiary extension from broad sags to narrow, fault-bounded basins. Seismic reflection data was acquired for the Anschutz Corporation by the Digicon Corporation during the winter of 1988/1989. Reprocessing of a 480 channel, 60 fold, dynamite source experiment enabled good imaging of the basin stratigraphy. These data suggest two distinct phases of basin development occurred, separated by a regional unconformity. The early phase is characterized by development of a broad basin riddled with many small offset normal faults. The later phase shows a narrowing of the basin and subsidence along one dominant structure, an apparent planar normal fault. The unconformity separating the two phases of extension marks a transition from broad subsidence to local asymmetric tilting that took place over a short period of time relative to sedimentation rates. Antelope Valley and Railroad Valley clearly show strong evidence for two phase development, whereas Smokey Valley represents mostly the early phase and Big Sand Springs Valley represents only the later phase of extension. The absence of dating within the basins precludes the authors from determining if the abrupt tectonic transition within the basins resulted from differences in local strain rates or amounts, or was due to changes in regional stress fields.

Liberty, L.M.; Heller, P.L.; Smithson, S.B. (Univ. of Wyoming, Laramie, WY (United States). Dept. of Geology and Geophysics)

1993-04-01T23:59:59.000Z

482

Comparing local vs. global visible and near-infrared (VisNIR) diffuse reflectance spectroscopy (DRS) calibrations for the prediction of soil clay, organic C  

E-Print Network [OSTI]

Comparing local vs. global visible and near-infrared (VisNIR) diffuse reflectance spectroscopy (DRS Elsevier B.V. All rights reserved. 1. Introduction Visible and near-infrared (VisNIR) diffuse reflectance

Lawrence, Rick L.

483

Solar Reflectance Index Calculation Worksheet Instructions The purpose of this calculator is to enable contractors and homeowners to quickly and accurately  

E-Print Network [OSTI]

Solar Reflectance Index Calculation Worksheet Instructions Usage: The purpose of this calculator is to enable contractors and homeowners to quickly and accurately calculate the solar reflectance product exceeds the Building Energy Efficiency Standards requirement for either the aged solar

484

Skin temperature of the sea as determined by radiometer  

E-Print Network [OSTI]

) Differences Temperature Vapor Press Skin Skin Bkt Skin Bkt -Bkt -Air -Air -Air -Air 120100 120200 120400 120500 1 20600 1 20700 1 20800 1 20900 1 21000 130100 130200 130300 130400 130500 130600 130700 130800 131000 131100 . 6235 . 6732.... FORTRAN program. 57 6. Stepwise analysis of error in radiation temperature of the sea. 65 LIST OF FIGURES Number Page 1. Tracks of Cruise 62 -H-10 along which radiation data were obtained, 2. Comparison of i. nfrared emissivities of water vapor. 14...

Boudreau, Robert Donald

2012-06-07T23:59:59.000Z

485

Remote monitoring of soil moisture using airborne microwave radiometers  

E-Print Network [OSTI]

) site G (b) site H I V-6 i IV- 7 'IV- 8 iV- I iV- 2 ! iV-3 Chickasha test site I V-4 Ground cover for Chickasha sites: site A (b) site B 62 63 64 67 68 69 71 X1 I I' I giirc I';i g| c Ground cover I or Chickashn sites: (n) site C (b...O bd rn 4I cb ccb U 0 0 U cd C4 Cd 0 44 E cd Itt g bb 0 cd cd E cjoy Gl U W t:t cd U cd 4 0 cb ?0 I M cct U Q rt M with the internal calibration which gives the slope or difference in temperature scale, the absolute reading...

Kroll, Charles Lindsey

2012-06-07T23:59:59.000Z

486

Design evaluation of a ground based radiometer system  

E-Print Network [OSTI]

, maximum Mixer Double balanced; utilizing low-noise, high reliability Schottky diodes. Conversion. Loss about 7. 6 dB. Matched to the preamplifier. IF Pream lifier Frequency Range 1. 4 ? 1. 6 GHz 36 dB Ripple Noise Figure USWR 0. 3 dB, maximum 4.... . . . . . . . . . . . . . . . . . 110 New Mixer Theoretical Noise Improvement . . . . . 110 Measured X-Band. Sensitivity . . . . . . . . . . . 113 Error Due to the Temperature-Limited Diode Noise Source. . . . . . . . . . . . . . . . 116 VI. CONCLUSIONS AND RECOMMENDATIONS...

McClellan, Wallace Roy

2012-06-07T23:59:59.000Z

487

Posters Radar/Radiometer Retrievals of Cloud Liquid Water and  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006PhotovoltaicSeptember 22, 2014SocietyJ. Dudhia51 Posters75

488

Electron Cyclotron Emission Radiometer Cristina Morales, Advisor: Dr. John Rodgers,  

E-Print Network [OSTI]

such as magnetic reconnection and plasma focus experiments ·Acknowledgments ·MCX Group ·William Young, Carlos

Anlage, Steven

489

Working Group Reports A Short-Wave Radiometer Array Across  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun1 Table 1.14 SalesWorkerWorkforce1: Model4:9

490

ARM - Field Campaign - Long-Term Microwave Radiometer Intercomparison  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLasDelivered‰PNGExperience4AJ01)3,CloudgovCampaignsIR Cloud

491

ARM - Field Campaign - Thin Cloud Rotating Shadowband Radiometer  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth (AOD) by Microtops Atmospheric Optical DepthgovCampaignsSpring(PROBE) govCampaignsThe

492

NREL: MIDC/Oak Ridge National Laboratory Rotating Shadowband Radiometer  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the Contributions and Achievements ofLizResultsGeothermal EnergyElizabeth City

493

DERIVING THE DISTRIBUTION OF ORDINARY CHONDRITE (H, L, LL)-LIKE MATERIALS IN ASTEROIDS FROM THEIR VISIBLE AND NEAR-INFRARED REFLECTANCE SPECTROSCOPY. T.  

E-Print Network [OSTI]

THEIR VISIBLE AND NEAR-INFRARED REFLECTANCE SPECTROSCOPY. T. Hiroi1 , T. Nimura2,3 , Y. Ueda2 , S. Sasaki4 and near-infrared tele- scopic reflectance spectra of 53 S/A/R/V asteroids were taken from the 24-color [3 reflects their abundance in the main asteroid belt. The abundant S-type asteroids and less abundant Q

Hiroi, Takahiro

494

LONG-TERM GOAL The long-term goal of this research project is to determine if energy reflectance measurements can  

E-Print Network [OSTI]

presented here is to characterize the energy reflectance of normal- hearing, healthy newborn babies. Keefe month past the age of two years. Other work focuses on energy reflectance in NICU babies (e.g. Shahnaz al. 2008). Here, we present measurements of energy reflectance on normal-hearing, healthy newborn

Voss, Susan E.

495

E-Print Network 3.0 - aster ericoides cultivar Sample Search...  

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

Davis, Anna M. Verner... Davis R-11 2004 Acer platanoides , species & cultivars Maple, Norway species ... Source: O'Laughlin, Jay - Department of Forest Resources, University of...

496

E-Print Network 3.0 - aster novi-belgii cultivars Sample Search...  

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

Davis, Anna M. Verner... Davis R-11 2004 Acer platanoides , species & cultivars Maple, Norway species ... Source: O'Laughlin, Jay - Department of Forest Resources, University of...

497

E-Print Network 3.0 - aster frikartii Sample Search Results  

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

Sale Plant List (complete plant list on UDBG website: http:ag.udel.eduudbg) Light: sun full sun; ps part sun (requires some full sun); ptsh part shade (will not grow in...

498

E-Print Network 3.0 - aster yellows phytoplasma Sample Search...  

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

and Stress Biology, John Innes Centre Collection: Biology and Medicine 6 UPDATE ON THE POTATO PURPLE TOP DISEASE IN THE COLUMBIA BASIN J.E. MUNYANEZA1 Summary: are broadly termed...

499

E-Print Network 3.0 - aster dataset flyover Sample Search Results  

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

; Engineering 91 Figure 5. Net radiation of the study area on June 21, 2003 ESTIMATION OF HEAT FLUXES Summary: University, Tempe REMOTE SENSING DATA We used cloud-free and...

500

Some Factors Affecting the Response of Spiny Aster to Herbicide Sprays.  

E-Print Network [OSTI]

an annual groundsel '~hillips, Tommy. 1975. Personal communication. Ranch man- ager, Greenlake Ranch, Victoria, TX 77015. (Senecio imparipinnatus Klatt .), Missouri ironweed (Vernonia missurica Raf.), and barnyardgrass [Echinochloa crusgalli (L.) Beauv...

Mayeux, H.S. jr; Scifres, C.J.; Meyer, R.E.

1979-01-01T23:59:59.000Z