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Note: This page contains sample records for the topic "all-stars shine bright" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


1

Energy All-Stars Shine Bright at Inaugural Lecture Series | Department of  

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

Energy All-Stars Shine Bright at Inaugural Lecture Series Energy All-Stars Shine Bright at Inaugural Lecture Series Energy All-Stars Shine Bright at Inaugural Lecture Series January 22, 2013 - 3:38pm Addthis Energy Secretary Steven Chu talks about the challenges and opportunities relating to energy issues in the coming years as he opens the Energy All-Stars event. Jennifer Granholm, former governor of Michigan, proposes a Race to the Top-style program for clean energy during Energy All-Stars. Los Angeles Mayor Antonio Villaraigosa speaks about how his city is moving towards a cleaner, more energy-efficient future during Energy All-Stars. Michael Liebreich, CEO of Bloomberg New Energy Finance, talks about the promise of the clean energy economy during Energy All-Stars. Doyle Beneby, President and Chief Executive Officer of CPS Energy, speaks

2

Energy All-Stars Shine Bright at Inaugural Lecture Series | Department of  

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

All-Stars Shine Bright at Inaugural Lecture Series All-Stars Shine Bright at Inaugural Lecture Series Energy All-Stars Shine Bright at Inaugural Lecture Series January 22, 2013 - 3:38pm Addthis Energy Secretary Steven Chu talks about the challenges and opportunities relating to energy issues in the coming years as he opens the Energy All-Stars event. Jennifer Granholm, former governor of Michigan, proposes a Race to the Top-style program for clean energy during Energy All-Stars. Los Angeles Mayor Antonio Villaraigosa speaks about how his city is moving towards a cleaner, more energy-efficient future during Energy All-Stars. Michael Liebreich, CEO of Bloomberg New Energy Finance, talks about the promise of the clean energy economy during Energy All-Stars. Doyle Beneby, President and Chief Executive Officer of CPS Energy, speaks

3

New OLED Lighting Systems Shine Bright, Save Energy  

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

Universal Display Corporation Universal Display Corporation (UDC) (Ewing, NJ), founded in 1994, provides OLED innovations and helps commercialize new generations of OLED products through technology licensing, UniversalPHOLED® materials sales, technology development, and technology transfer services. UDC is a world leader in the development of innovative OLED technology for use in flat panel displays, lighting, and organic electronics. It holds one of the largest patent portfolios in the OLED field. www.universaldisplay.com New OLED Lighting Systems Shine Bright, Save Energy Challenge Lighting consumes over 22% of the total electricity produced in the U.S. and, according to industry estimates, accounts for over $200 billion per year in electric bills worldwide. A majority of this energy consumption

4

Bill Nye (Energy All Stars Presentation)  

Broader source: Energy.gov [DOE]

Bill Nye the Science Guy delivered this presentation on space and the lessons about climate change that can be gleaned from the other planets in our solar system at the Energy All Stars event on...

5

Michael Liebreich (Energy All Stars Presentation)  

Broader source: Energy.gov [DOE]

Michael Liebreich, CEO of Bloomberg New Energy Finance, delivered this presentation on the energy economy at the Energy All Stars event on January 19, 2013, at the US Department of Energy in...

6

Bright minds shine in Los Angeles: The 2014 ISEF  

Science Journals Connector (OSTI)

...a model of a neighborhood in Hoboken, New Jersey, using the Google Earth Pro and Autodesk Inventor Fusion software, and simulated wind flows using the Autodesk Simulation CFD computational fluid dynamics software. Ross found that buildings concentrated...

Richard Nolen-Hoeksema

7

New OLED Lighting Systems Shine Bright, Save Energy  

Office of Energy Efficiency and Renewable Energy (EERE)

Case study that describes how Universal Display Corporation received SBIR funding to adapt its PHOLED lighting technology for high-end commercial and institutional building applications.

8

Bright minds shine in Los Angeles: The 2014 ISEF  

Science Journals Connector (OSTI)

...from noisy data, placing wind turbines in urban areas, and measuring...Administration (NOAA) buoys offshore Long Island, New York...optimized analysis of wind flows in the urban environment...feasible building augmented wind turbine sites. With recent advances...

Richard Nolen-Hoeksema

9

Sun Shine Solar | Open Energy Information  

Open Energy Info (EERE)

Shine Solar Shine Solar Jump to: navigation, search Logo: Sun Shine Solar Name Sun Shine Solar Place Norwich, United Kingdom Sector Solar Product Solar energy products Phone number 01508 488188 Website http://www.sunshinesolar.co.uk Coordinates 52.6281014°, 1.2993494° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":52.6281014,"lon":1.2993494,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

10

Shining Some Light on the World Cup's Efficiency Efforts | Department...  

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

Shining Some Light on the World Cup's Efficiency Efforts Shining Some Light on the World Cup's Efficiency Efforts June 26, 2014 - 11:00am Addthis The Mineiro Stadium, with its...

11

A Shining Example of Dr. King's legacy | Department of Energy  

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

A Shining Example of Dr. King's legacy A Shining Example of Dr. King's legacy A Shining Example of Dr. King's legacy January 9, 2013 - 11:27am Addthis A Shining Example of Dr. King’s legacy Kathy Chambers Senior Science and Technical Information Specialist, OSTI Editor's Note: This blog was originally posted on OSTI's blog. As America celebrates Martin Luther King's birthday and focuses on how far this nation has come for all people, the Energy Department's .EDUconnections is pleased to honor Delaware State University (DSU). DSU is a shining example of Dr. King's extraordinary legacy of progress and education. Founded in 1891, DSU became one of the country's first land-grant educational institutions and is now a Historically Black College and University. DSU has a proud heritage of research, and today focuses on

12

STEM Women All-Stars Hit the Road | Department of Energy  

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

STEM Women All-Stars Hit the Road STEM Women All-Stars Hit the Road STEM Women All-Stars Hit the Road April 30, 2012 - 4:32pm Addthis Karina Edmonds, Technology Transfer Coordinator for the Department of Energy, meets with girls from the University of San Francisco Upward Bound Math and Science Program. (Photo courtesy of USF Upward Bound Math and Science Program) Karina Edmonds, Technology Transfer Coordinator for the Department of Energy, meets with girls from the University of San Francisco Upward Bound Math and Science Program. (Photo courtesy of USF Upward Bound Math and Science Program) Lauren Andersen Policy Advisor at White House Office of Science and Technology Policy What are the key facts? Watch the White House Girls in STEM video Read about the Energy Department's Women in STEM Tweet Up

13

STEM Women All-Stars Hit the Road | Department of Energy  

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

STEM Women All-Stars Hit the Road STEM Women All-Stars Hit the Road STEM Women All-Stars Hit the Road April 30, 2012 - 4:32pm Addthis Karina Edmonds, Technology Transfer Coordinator for the Department of Energy, meets with girls from the University of San Francisco Upward Bound Math and Science Program. (Photo courtesy of USF Upward Bound Math and Science Program) Karina Edmonds, Technology Transfer Coordinator for the Department of Energy, meets with girls from the University of San Francisco Upward Bound Math and Science Program. (Photo courtesy of USF Upward Bound Math and Science Program) Lauren Andersen Policy Advisor at White House Office of Science and Technology Policy What are the key facts? Watch the White House Girls in STEM video Read about the Energy Department's Women in STEM Tweet Up

14

1366 Technologies Shines a Light on American Innovation | Department of  

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

366 Technologies Shines a Light on American Innovation 366 Technologies Shines a Light on American Innovation 1366 Technologies Shines a Light on American Innovation December 3, 2010 - 7:09pm Addthis 1366 Technologies Shines a Light on American Innovation John Schueler John Schueler Former New Media Specialist, Office of Public Affairs Earlier this year, we visited 1366 Technologies in North Lexington, Massachusetts to get an inside look at their innovative approach to solar manufacturing and document how a $4 million grant from the Advanced Research Projects Agency-Energy (ARPA-E), through the Recovery Act, was helping to make their ambitious goal of producing "solar at the cost of coal" a reality. A lot has happened since that time, with the company announcing plans to bring its novel wafer manufacturing process into production by 2012, thanks

15

City of Milwaukee - Milwaukee Shines Solar Financing | Department of Energy  

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

Milwaukee - Milwaukee Shines Solar Financing Milwaukee - Milwaukee Shines Solar Financing City of Milwaukee - Milwaukee Shines Solar Financing < Back Eligibility Multi-Family Residential Residential Savings Category Solar Buying & Making Electricity Heating & Cooling Water Heating Maximum Rebate $20,000 Program Info Start Date 07/28/2011 State Wisconsin Program Type Local Loan Program Provider City of Milwaukee Beginning July 28, 2011, the City of Milwaukee will be offering low-interest loans for solar energy under its Milwaukee Shines Solar Financing program. Loans are available to homeowners of 1-3 unit, owner-occupied homes in Milwaukee. Interest rate maximum is prime rate plus 2.5%, and as low as prime plus 1.5%. Loans are limited to $20,000 and 15 years. Eligible equipment includes solar electric systems of up to 6

16

Smart Grid Shines after California Earthquake | OpenEI Community  

Open Energy Info (EERE)

Smart Grid Shines after California Earthquake Home > Groups > Smart Grid Dc's picture Submitted by Dc(107) Contributor 16 September, 2014 - 13:38 Back in 1989, nearly 55,000...

17

LET THE SUN SHINE: OPTIMAL DEPLOYMENT OF PHOTOVOLTAICS IN GERMANY  

E-Print Network [OSTI]

LET THE SUN SHINE: OPTIMAL DEPLOYMENT OF PHOTOVOLTAICS IN GERMANY Anna CRETI Jérôme JOAUG Cahier n:chantal.poujouly@polytechnique.edu hal-00751743,version1-14Nov2012 #12;Let the sun shine: optimal deployment of photovoltaics in Germany-in tari¤s to foster the di¤usion of photovoltaics is recently being rediscussed in several countries

Paris-Sud XI, Université de

18

EECBG Success Story: Shining Energy-Saving LEDs on Utah Starry...  

Energy Savers [EERE]

EECBG Success Story: Shining Energy-Saving LEDs on Utah Starry Nights EECBG Success Story: Shining Energy-Saving LEDs on Utah Starry Nights June 11, 2010 - 4:27pm Addthis Thanks to...

19

Solar Decathlon: Rain and Shine | Department of Energy  

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

Solar Decathlon: Rain and Shine Solar Decathlon: Rain and Shine Solar Decathlon: Rain and Shine October 20, 2009 - 7:00am Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy Friday marked the end of the Solar Decathlon competition. Team Germany won (for the second time) in a very competitive field, in a ceremony marked by gray skies, cold temperatures and rain. For all the bad weather, however, the mood in DC was very upbeat. This was the fourth Solar Decathlon, an event that has seen great strides since its launch in 2002. The mission of the event is to promote solar energy and energy efficiency in buildings, through innovative engineering and scholarly dedication. I would venture to say that this year might mark the event's greatest success, with TWO teams from Canada, as well as returning

20

Los Alamos instrument to shine light on Mars habitability  

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

Instrument to shine light on Mars habitability Instrument to shine light on Mars habitability Los Alamos instrument to shine light on Mars habitability The robust ChemCam system is one of 10 instruments mounted on the mission's rover vehicle, named Curiosity. November 28, 2011 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Contact

Note: This page contains sample records for the topic "all-stars shine bright" 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

Solar Decathlon: Rain and Shine | Department of Energy  

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

Solar Decathlon: Rain and Shine Solar Decathlon: Rain and Shine Solar Decathlon: Rain and Shine October 20, 2009 - 7:00am Addthis Drew Bittner Web Manager, Office of Energy Efficiency and Renewable Energy Friday marked the end of the Solar Decathlon competition. Team Germany won (for the second time) in a very competitive field, in a ceremony marked by gray skies, cold temperatures and rain. For all the bad weather, however, the mood in DC was very upbeat. This was the fourth Solar Decathlon, an event that has seen great strides since its launch in 2002. The mission of the event is to promote solar energy and energy efficiency in buildings, through innovative engineering and scholarly dedication. I would venture to say that this year might mark the event's greatest success, with TWO teams from Canada, as well as returning

22

Virginia Tech Shines Light on Home Efficiency | Department of Energy  

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

Virginia Tech Shines Light on Home Efficiency Virginia Tech Shines Light on Home Efficiency Virginia Tech Shines Light on Home Efficiency July 9, 2010 - 10:54am Addthis Virginia Tech's solar-powered Lumenhaus was designed for maximum efficiency as well as comfort. | Photo courtesy of Lumenhaus Virginia Tech's solar-powered Lumenhaus was designed for maximum efficiency as well as comfort. | Photo courtesy of Lumenhaus Collegiate teams from around the world came to Madrid this month to present their solar-powered houses in the first biennial Solar Decathlon Europe, a competition modeled after the Energy Department's Solar Decathlon in Washington, D.C. As one of just two teams representing the United States, Virginia Tech earned enough points with its Lumenhaus to win the overall competition. "We competed against high quality teams with significant support from their

23

Crayola's True Color Shines Through: Green | Department of Energy  

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

Crayola's True Color Shines Through: Green Crayola's True Color Shines Through: Green Crayola's True Color Shines Through: Green August 13, 2010 - 10:00am Addthis The Crayola solar farm became fully operational this week. Ten children from around the country, known as the "Crayola Green Team," helped dedicate the newest addition to the Easton, Pa.-plant. Photos courtesy of Crayola. | Photo Courtesy of Crayola The Crayola solar farm became fully operational this week. Ten children from around the country, known as the "Crayola Green Team," helped dedicate the newest addition to the Easton, Pa.-plant. Photos courtesy of Crayola. | Photo Courtesy of Crayola Stephen Graff Former Writer & editor for Energy Empowers, EERE What does this project do? The solar panels produce enough energy to produce 1 billion crayons

24

Fusion energy Fusion powers the Sun, and all stars, in which light nuclei fuse together at high temperatures  

E-Print Network [OSTI]

Fusion energy · Fusion powers the Sun, and all stars, in which light nuclei fuse together at high in excess of 100 million degrees, much higher than in the Sun. The hot hydrogen gas (known as a `plasma

25

Shining Light in Dark Places: Understanding the Tor Network  

E-Print Network [OSTI]

Shining Light in Dark Places: Understanding the Tor Network Damon McCoy1 , Kevin Bauer1 , Dirk-used? (3) Who is using Tor? To sample the results, we show that web traffic makes up the ma- jority latency and high throughput, it is ideal for interac- tive applications such as web browsing, file sharing

26

Time Brightness  

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

Perlmutter, et al., in Thermonuclear Supernovae, NATO ASI, v. 486 (1997) Perlmutter, et al., in Thermonuclear Supernovae, NATO ASI, v. 486 (1997) Cosmology from . . . Time Brightness ... . . . 50-100 Fields Lunar Calendar Scheduled Follow-Up Imaging at Hubble, Cerro Tololo, WIYN, Isaac Newton Scheduled Follow-Up Spectroscopy at Keck Almost 1000 Galaxies per Field RESULT: ~24 Type Ia supernovae discovered while still brightening, at new moon Berkeley Lab Keck WIYN Cerro Tololo Isaac Newton Hubble Strategy We developed a strategy to guarantee a group of supernova discoveries on a certain date. Just after a new moon, we observe some 50 to 100 high-galactic lattitute fields-each containing almost a thousand high-redshift galaxies-in two nights on the Cerro Tololo 4-meter telescope with Tyson & Bernstein's wide-field camera. We return three weeks later to observe the same

27

Shining Light on Catalysis | Stanford Synchrotron Radiation Lightsource  

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

Shining Light on Catalysis Shining Light on Catalysis Tuesday, July 19, 2011 - 4:38pm SSRL Conference Room 137-322 Jeroen A. van Bokhoven, Professor for Heterogeneous Catalysis Institute for Chemical and Bioengineering ETH Zurich Head of Laboratory for Catalysis and Sustainable Chemistry (LSK) Swiss Light Source Paul Scherrer Institute Understanding a functioning catalyst requires understanding at the atomic scales in a time-resolved manner. X-rays can be readily used to accomplish that task, because of the large penetration depth of hard X-rays, in situ or operando experiments are possible. In addition, complementary techniques, such as the vibrational spectroscopies can be simultaneously applied. Recent development in instrumentation to perform quick EXAFS and secondary emission spectroscopy has provided exciting new opportunities to

28

NREL: News Feature - Middle Schoolers Shine in Electric Car Races  

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

Middle Schoolers Shine in Electric Car Races Middle Schoolers Shine in Electric Car Races May 24, 2013 In this photo, a boy grins widely as he holds a yellow folder over his model solar car. In the background are several black neoprene tracks and other middle-school students awaiting the starting signal. An adult race judge holds her hand in the air, signaling that everything is ready for the start of the race. Enlarge image Xavier Urquijo from Summit Ridge Middle School in Littleton waits for the start signal to lift the folder covering the solar panel on his team's car, "Knight Hawk." His team was one of 97 from 28 Colorado middle schools racing solar and lithium-ion powered vehicles they designed and built themselves at NREL's 2013 Junior Solar Sprint and Lithium-Ion Battery car competitions on May 18.

29

EM Waste Isolation Pilot Plant Team's Holiday Spirit Shines | Department  

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

EM Waste Isolation Pilot Plant Team's Holiday Spirit Shines EM Waste Isolation Pilot Plant Team's Holiday Spirit Shines EM Waste Isolation Pilot Plant Team's Holiday Spirit Shines December 23, 2013 - 12:00pm Addthis Aspen Cass, a relative of an EM Carlsbad Field Office (CBFO) employee, holds donated coats with Farok Sharif (left), president and project manager of Nuclear Waste Partnership, the WIPP management and operating contractor, and Joe Franco, manager of CBFO. Aspen Cass, a relative of an EM Carlsbad Field Office (CBFO) employee, holds donated coats with Farok Sharif (left), president and project manager of Nuclear Waste Partnership, the WIPP management and operating contractor, and Joe Franco, manager of CBFO. The clothing drive’s organizers — Margaret Gee (left), Yolanda Navarrete (center) and Dana Dorr — hold up some of the donated coats before providing them to Carlsbad area schools. Gee is with CBFO and Navarrete and Dorr are with Nuclear Waste Partnership (NWP). NWP's Yolanda Salmon, another drive organizer, is not pictured.

30

arXiv:astro-ph/0009259v219Sep2000 How the Sun Shines  

E-Print Network [OSTI]

arXiv:astro-ph/0009259v219Sep2000 How the Sun Shines John N. Bahcall What makes the sun shine? How does the sun produce the vast amount of energy necessary to support life on earth? These questions 1833 Treatise on Astronomy: The sun's rays are the ultimate source of almost every motion which takes

Walter, Frederick M.

31

Bright Green Serum  

Science Journals Connector (OSTI)

Figure 1. This 49-year-old woman had abdominal pain and then contrast-mediuminduced renal failure. The patient was found to have bright green serum.

Bailey H.; Wu A.H.B.

2007-03-15T23:59:59.000Z

32

Fuel Cells Shine a Light on the Last Endeavour Space Shuttle Launch |  

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

Cells Shine a Light on the Last Endeavour Space Shuttle Launch Cells Shine a Light on the Last Endeavour Space Shuttle Launch Fuel Cells Shine a Light on the Last Endeavour Space Shuttle Launch May 16, 2011 - 9:35am Addthis Sunita Satyapal Program Manager, Hydrogen & Fuel Cell Technology Program What does this mean for me? A new hydrogen fuel cell-powered mobile light tower that has the potential to drastically reduce dependence on diesel-fueled mobile lighting across the United States. They are cleaner and quieter than diesel mobile light towers used today. Energy Department-funded research has helped to reduce the cost of fuel cells by 30% since 2008 and 80% since 2002. This has enabled increased widespread adoption and enabled commercial developments for fuel cell applications. Fuel cell technology will help light the way as the Space Shuttle

33

Light Shines on Better Budget for Glendale, Arizona | Department of Energy  

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

Light Shines on Better Budget for Glendale, Arizona Light Shines on Better Budget for Glendale, Arizona Light Shines on Better Budget for Glendale, Arizona July 20, 2010 - 10:00am Addthis A LED light bulb is installed in one of Glendale, Ariz.'s traffic signals. | Photo courtesy of Glendale A LED light bulb is installed in one of Glendale, Ariz.'s traffic signals. | Photo courtesy of Glendale Glendale, Ariz., like many other cities, was facing several problems: a tight budget and aging buildings using outdated lighting - making repairs difficult and expensive. The city installed energy-efficient LED lights in 190 signalized street intersections, at racquet ball and tennis courts at 11 city parks and in the Glendale Main Library. Glendale used part of its $2.3 million Energy Efficiency and Conservation Block Grant (EECBG) - funded by the American

34

Fuel Cells Shine a Light on the Last Endeavour Space Shuttle Launch |  

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

Fuel Cells Shine a Light on the Last Endeavour Space Shuttle Launch Fuel Cells Shine a Light on the Last Endeavour Space Shuttle Launch Fuel Cells Shine a Light on the Last Endeavour Space Shuttle Launch May 16, 2011 - 9:35am Addthis Sunita Satyapal Program Manager, Hydrogen & Fuel Cell Technology Program What does this mean for me? A new hydrogen fuel cell-powered mobile light tower that has the potential to drastically reduce dependence on diesel-fueled mobile lighting across the United States. They are cleaner and quieter than diesel mobile light towers used today. Energy Department-funded research has helped to reduce the cost of fuel cells by 30% since 2008 and 80% since 2002. This has enabled increased widespread adoption and enabled commercial developments for fuel cell applications. Fuel cell technology will help light the way as the Space Shuttle

35

Photo of the Week: Rain or Shine, Preparing for the 2013 Hurricane Season |  

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

Rain or Shine, Preparing for the 2013 Hurricane Rain or Shine, Preparing for the 2013 Hurricane Season Photo of the Week: Rain or Shine, Preparing for the 2013 Hurricane Season May 15, 2013 - 1:16pm Addthis President Barack Obama listens to Acting Energy Secretary Daniel B. Poneman during a meeting with electric utility CEOs and trade association representatives at the Department of Energy in Washington, D.C., May 8, 2013. The group met to discuss lessons learned during the response to Hurricane Sandy, as well as the ongoing preparations for 2013 hurricane season, which begins June 1. | Official White House Photo by Pete Souza. President Barack Obama listens to Acting Energy Secretary Daniel B. Poneman during a meeting with electric utility CEOs and trade association representatives at the Department of Energy in Washington, D.C., May 8,

36

Fewer lights, Brighter Shine in New Hampshire County | Department of Energy  

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

Fewer lights, Brighter Shine in New Hampshire County Fewer lights, Brighter Shine in New Hampshire County Fewer lights, Brighter Shine in New Hampshire County September 20, 2010 - 3:00pm Addthis New sodium lamp lights at Strafford County’s courthouse parking lot are expected to save the county $6,000 on energy bills annually. | Photo courtesy of Strafford County New sodium lamp lights at Strafford County's courthouse parking lot are expected to save the county $6,000 on energy bills annually. | Photo courtesy of Strafford County New sodium lamp lights at Strafford County's courthouse parking lot are expected to save the county $6,000 on energy bills annually. | Photo courtesy of Strafford County | New sodium lamp lights at Strafford County's courthouse parking lot are expected to save the county $6,000 on energy bills annually. | Photo courtesy of Strafford County

37

Shining Energy-saving LEDs on Utah Starry Nights | Department of Energy  

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

Shining Energy-saving LEDs on Utah Starry Nights Shining Energy-saving LEDs on Utah Starry Nights Shining Energy-saving LEDs on Utah Starry Nights June 11, 2010 - 4:27pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE Utah is known for its magnificent night skies, where stargazers can catch a glimpse of constellations or a rogue shooting star. Now some rural towns have found a way to create even better views-and conserve energy. This summer, thanks to an Energy Efficiency and Conservation Block Grant (EECBG) from the Utah State Energy Program worth over $1 million, 14 rural communities across the state are replacing streetlights with efficient light-emitting diodes (LEDs). About 2,500 streetlights will be replaced and could save the towns 20 percent to 50 percent on electricity bills.

38

Fewer lights, Brighter Shine in New Hampshire County | Department of Energy  

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

Fewer lights, Brighter Shine in New Hampshire County Fewer lights, Brighter Shine in New Hampshire County Fewer lights, Brighter Shine in New Hampshire County September 20, 2010 - 3:00pm Addthis New sodium lamp lights at Strafford County’s courthouse parking lot are expected to save the county $6,000 on energy bills annually. | Photo courtesy of Strafford County New sodium lamp lights at Strafford County's courthouse parking lot are expected to save the county $6,000 on energy bills annually. | Photo courtesy of Strafford County New sodium lamp lights at Strafford County's courthouse parking lot are expected to save the county $6,000 on energy bills annually. | Photo courtesy of Strafford County | New sodium lamp lights at Strafford County's courthouse parking lot are expected to save the county $6,000 on energy bills annually. | Photo courtesy of Strafford County

39

Shining Energy-saving LEDs on Utah Starry Nights | Department of Energy  

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

Shining Energy-saving LEDs on Utah Starry Nights Shining Energy-saving LEDs on Utah Starry Nights Shining Energy-saving LEDs on Utah Starry Nights June 11, 2010 - 4:27pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE Utah is known for its magnificent night skies, where stargazers can catch a glimpse of constellations or a rogue shooting star. Now some rural towns have found a way to create even better views-and conserve energy. This summer, thanks to an Energy Efficiency and Conservation Block Grant (EECBG) from the Utah State Energy Program worth over $1 million, 14 rural communities across the state are replacing streetlights with efficient light-emitting diodes (LEDs). About 2,500 streetlights will be replaced and could save the towns 20 percent to 50 percent on electricity bills.

40

Does the Sun Shine by pp or CNO Fusion Reactions? John N. Bahcall *  

E-Print Network [OSTI]

the recent KamLAND measurements) to the fraction of energy that the Sun produces via the CNO fusion cycle­Kamiokande [13], provide information about neutrinos but only those that have energies well above the maximumDoes the Sun Shine by pp or CNO Fusion Reactions? John N. Bahcall * School of Natural Sciences

Bahcall, John

Note: This page contains sample records for the topic "all-stars shine bright" 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

Does the Sun Shine by pp or CNO Fusion Reactions? John N. Bahcall*  

E-Print Network [OSTI]

the recent KamLAND measurements) to the fraction of energy that the Sun produces via the CNO fusion cycle-Kamiokande [13], provide information about neutrinos but only those that have energies well above the maximumDoes the Sun Shine by pp or CNO Fusion Reactions? John N. Bahcall* School of Natural Sciences

Bahcall, John

42

Seeing properties of an invisible object: Feature inheritance and shine-through  

E-Print Network [OSTI]

Seeing properties of an invisible object: Feature inheritance and shine-through Michael H. Herzog invisible. Secondly, the vernier can be rendered visible by presenting gratings with a larger number by the offset direction of the vernier that is perceptual invisible because of short display time

Koch, Christof

43

FPL's solar stars shine at new 500-acre array By SUSAN SALISBURY  

E-Print Network [OSTI]

FPL's solar stars shine at new 500-acre array By SUSAN SALISBURY Palm Beach Post Staff Writer and water, Florida Power & Light Co. workers finished cleaning the mirrors at its new Martin County solar's dedication of the one-of-a-kind hybrid solar energy center, it's nice that the 5-by-5-foot mirrors

Belogay, Eugene A.

44

Why Does the Sun Shine? What is the source of solar  

E-Print Network [OSTI]

Why Does the Sun Shine? #12;What is the source of solar luminosity? There were three plausible contraction #12;Fire Suppose the Sun were a mixture of carbon and oxygen on fire. ·Each chemical reaction releases an energy of about 10-11 ergs. ·The mass of the Sun could contain 3x1055 Carbon atoms plus twice

Walter, Frederick M.

45

High-energy X-rays shine light on mystery of Picasso's paints | Argonne  

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

energy X-rays shine light on mystery of Picasso's paints energy X-rays shine light on mystery of Picasso's paints By Tona Kunz * February 6, 2013 Tweet EmailPrint LEMONT, Ill. - The Art Institute of Chicago teamed up with Argonne National Laboratory to help unravel a decades-long debate among art scholars about what kind of paint Picasso used to create his masterpieces. The results published last month in the journal Applied Physics A: Materials Science & Processing add significant weight to the widely held theory that Picasso was one of the first master painters to use common house paint rather than traditional artists' paint. That switch in painting material gave birth to a new style of art marked by canvasses covered in glossy images with marbling, muted edges, and occasional errant paint drips, but devoid of brush marks. Fast-drying enamel house paint enabled

46

Maximizing Brightness in Photoinjectors  

SciTech Connect (OSTI)

If the laser pulse driving photoinjectors could be arbitrarily shaped, the emittance growth induced by space charge effects could be totally compensated for. In particular, for RF guns the photo-electron distribution leaving the cathode should have a 3D-ellipsoidal shape. The emittance at the end of the injector could be as small as the cathode emittance. We explore how the emittance and the brightness can be optimized for photoinjector based on RF gun depending on the peak current requirements. Techniques available to produce those ideal laser pulse shapes are also discussed. If the laser pulse driving photoinjectors could be arbitrarily shaped, the emittance growth induced by space charge effects could be totally compensated for. In particular, for RF guns, the photo-electron distribution leaving the cathode should be close to a uniform distribution contained in a 3D-ellipsoid contour. For photo-cathodes which have very fast emission times, and assuming a perfectly uniform emitting surface, this could be achieved by shaping the laser in a pulse of constant fluence and limited in space by a 3D-ellipsoid contour. Simulations show that in such conditions, with the standard linear emittance compensation, the emittance at the end of the photo-injector beamline approaches the minimum value imposed by the cathode emittance. Brightness, which is expressed as the ratio of peak current over the product of the two transverse emittance, seems to be maximized for small charges. Numerical simulations also show that for very high charge per bunch (10nC), emittances as small as 2 mm-mrad could be reached by using 3D-ellipsoidal laser pulses in an S-Band gun. The production of 3D-ellipsoidal pulses is very challenging, but seems worthwhile the effort. We briefly discuss some of the present ideas and difficulties of achieving such pulses.

Limborg-Deprey, C.; /SLAC; Tomizawa, H.; /JAERI-RIKEN, Hyogo

2011-11-30T23:59:59.000Z

47

Seaborg Predicts Bright Atomic Future  

Science Journals Connector (OSTI)

Seaborg Predicts Bright Atomic Future ... To explore both the immediate and long-term ramifications of the cutbacks, C&EN talked to the Chairman of the Atomic Energy Commission, Dr. Glenn T. Seaborg . ...

1964-06-15T23:59:59.000Z

48

Probing braneworld hypothesis with a "neutron-shining-through-a-wall" experiment  

E-Print Network [OSTI]

The possibility for our visible world to be a 3-brane embedded in a multidimensional bulk is at the heart of many theoretical edifices in high energy physics. Probing the braneworld hypothesis is then a major experimental challenge. Following recent theoretical works showing that matter swapping can occur between braneworlds, we propose a "neutron-shining-through-a-wall" experiment. We first show that an intense neutron source such as a nuclear reactor core can induce a hidden neutron flux in an adjacent hidden braneworld. We then describe how a low background detector can detect neutrons arising from the hidden world and we quantify the expected sensitivity to the swapping probability. As a proof of concept, a constraint is derived from previous experiments.

Sarrazin, Michael; Lamblin, Jacob; Petit, Fabrice; Terwagne, Guy; Nesvizhevsky, Valery V

2015-01-01T23:59:59.000Z

49

LED Record Efficacy and Brightness  

Broader source: Energy.gov [DOE]

Designed for general lighting applications such as street, industrial, and parking garage lighting, the Cree XLamp power LED sets new records for LED brightness and efficacy, up to 85 lm/W at 350 mA. The XLamp utilizes Cree's performance breakthrough EZBright LED chip; both products include technology that was developed in part with R&D funding support from DOE.

50

Plastic Solar Cells See Bright Future | ANSER Center | Argonne...  

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

Plastic Solar Cells See Bright Future Home > News & Events > Plastic Solar Cells See Bright Future Plastic Solar Cells See Bright Future Evanston, Ill---Energy consumption is...

51

BrightSource Energy | Open Energy Information  

Open Energy Info (EERE)

search Name: BrightSource Energy Place: Oakland, California Zip: 94612 Sector: Solar Product: California-based company that develops, builds, owns, and operates large...

52

Sandia National Laboratories: high-brightness LED  

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

brightness LED ECIS-Veeco: Research Driving Down the Costs of Efficient LED Lighting On February 14, 2013, in Energy, Energy Efficiency, Materials Science, Partnership, Research &...

53

BrightSource | Open Energy Information  

Open Energy Info (EERE)

BrightSource BrightSource Jump to: navigation, search Logo: BrightSource Name BrightSource Address 1999 Harrison Street Place Oakland, California Zip 94612 Sector Solar Product CSP developer Year founded 1984 Number of employees 51-200 Website http://www.brightsourceenergy. Coordinates 37.8020203652°, -122.270536423° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":37.8020203652,"lon":-122.270536423,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

54

The Universe Adventure - Magnitude, Luminosity and Brightness  

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

Apparent Magnitude Apparent Magnitude Some astronomical objects and their magnitudes. Some astronomical objects and their apparent magnitudes from Earth. Before telescopes, people looked at the sky and classified the objects they saw by their brightness. Hipparchus, a Greek mathematician, classified over 850 cosmic objects into six categories of brightness. Scientists later adopted the word magnitude, keeping and extending the scale developed by Hipparchus. The brightest stars were called first magnitude stars, the next brightest being second magnitude stars, etc. Today, we measure the brightness of an object using this same scale, but with much more precision and using a much larger scale. The scale is formatted so that the lower the magnitude the brighter the object, which means a star with a magnitude of

55

ARM - Measurement - Longwave narrowband brightness temperature  

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

narrowband brightness temperature narrowband brightness temperature ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Longwave narrowband brightness temperature A descriptive measure of radiation in terms of the temperature of a hypothetical black body emitting an identical amount of radiation in the same narrow band of wavelengths. Categories Radiometric Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments IRT : Infrared Thermometer Field Campaign Instruments RAD-AIR : Airborne Radiometers

56

A brightness exceeding simulated Langmuir limit  

SciTech Connect (OSTI)

When an excitation of the first lens determines a beam is parallel beam, a brightness that is 100 times higher than Langmuir limit is measured experimentally, where Langmuir limits are estimated using a simulated axial cathode current density which is simulated based on a measured emission current. The measured brightness is comparable to Langmuir limit, when the lens excitation is such that an image position is slightly shorter than a lens position. Previously measured values of brightness for cathode apical radii of curvature 20, 60, 120, 240, and 480 ?m were 8.7, 5.3, 3.3, 2.4, and 3.9 times higher than their corresponding Langmuir limits, respectively, in this experiment, the lens excitation was such that the lens and the image positions were 180 mm and 400 mm, respectively. From these measured brightness for three different lens excitation conditions, it is concluded that the brightness depends on the first lens excitation. For the electron gun operated in a space charge limited condition, some of the electrons emitted from the cathode are returned to the cathode without having crossed a virtual cathode. Therefore, method that assumes a Langmuir limit defining method using a Maxwellian distribution of electron velocities may need to be revised. For the condition in which the values of the exceeding the Langmuir limit are measured, the simulated trajectories of electrons that are emitted from the cathode do not cross the optical axis at the crossover, thus the law of sines may not be valid for high brightness electron beam systems.

Nakasuji, Mamoru [2-15-11, Serigaya-chou, Kounan-ku, Yokohama-shi, Kanagawa-ken (Japan)] [2-15-11, Serigaya-chou, Kounan-ku, Yokohama-shi, Kanagawa-ken (Japan)

2013-08-15T23:59:59.000Z

57

BrightPhase Energy | Open Energy Information  

Open Energy Info (EERE)

BrightPhase Energy BrightPhase Energy Jump to: navigation, search Logo: BrightPhase Energy Name BrightPhase Energy Address 8035 East 40th Avenue Place Denver, Colorado Zip 80207 Sector Solar Product Combination PV and day-lighting modules for commerical buildings Year founded 2000 Website http://www.brightphaseenergy.c Coordinates 39.7728396°, -104.8953944° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":39.7728396,"lon":-104.8953944,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

58

Laser Power Meter Large, bright, backlit LCD  

E-Print Network [OSTI]

Laser Power Meter FEATURES · Large, bright, backlit LCD display · Digital accuracy with analog-like movement for laser tuning · Works with thermopile and optical sensors · Intuitive button-driven user COMPATIBILITY · PowerMax® thermal sensors · Optical sensors FieldMaxII-TO Coherent Laser Measurement and Control

Woodall, Jerry M.

59

High-brightness H/sup -/ accelerators  

SciTech Connect (OSTI)

Neutral particle beam (NPB) devices based on high-brightness H/sup -/ accelerators are an important component of proposed strategic defense systems. The basic rationale and R and D program are outlined and examples given of the underlying technology thrusts toward advanced systems. Much of the research accomplished in the past year is applicable to accelerator systems in general; some of these activities are discussed.

Jameson, R.A.

1987-01-01T23:59:59.000Z

60

EECBG Success Story: Bright Green Spot: Fort Worth Library |...  

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

Bright Green Spot: Fort Worth Library EECBG Success Story: Bright Green Spot: Fort Worth Library September 30, 2010 - 9:53am Addthis Fort Worth's Central Library is seeing...

Note: This page contains sample records for the topic "all-stars shine bright" 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

Internetwork chromospheric bright grains observed with IRIS  

E-Print Network [OSTI]

The Interface Region Imaging Spectrograph (IRIS) reveals small-scale rapid brightenings in the form of bright grains all over coronal holes and the quiet sun. These bright grains are seen with the IRIS 1330 \\AA, 1400 \\AA\\ and 2796 \\AA\\ slit-jaw filters. We combine coordinated observations with IRIS and from the ground with the Swedish 1-m Solar Telescope (SST) which allows us to have chromospheric (Ca II 8542 \\AA, Ca II H 3968 \\AA, H\\alpha, and Mg II k 2796 \\AA), and transition region (C II 1334 \\AA, Si IV 1402) spectral imaging, and single-wavelength Stokes maps in Fe I 6302 \\AA at high spatial (0.33"), temporal and spectral resolution. We conclude that the IRIS slit-jaw grains are the counterpart of so-called acoustic grains, i.e., resulting from chromospheric acoustic waves in a non-magnetic environment. We compare slit-jaw images with spectra from the IRIS spectrograph. We conclude that the grain intensity in the 2796 \\AA\\ slit-jaw filter comes from both the Mg II k core and wings. The signal in the C II ...

Martnez-Sykora, Juan; Carlsson, Mats; De Pontieu, Bart; Pereira, Tiago M D; Boerner, Paul; Hurlburt, Neal; Kleint, Lucia; Lemen, James; Tarbell, Ted D; Title, Alan; Wuelser, Jean-Pierre; Hansteen, Viggo H; Golub, Leon; McKillop, Sean; Reeves, Kathy K; Saar, Steven; Testa, Paola; Tian, Hui; Jaeggli, Sarah; Kankelborg, Charles

2015-01-01T23:59:59.000Z

62

Light Wars: The Bright Future of Laser Weapons  

E-Print Network [OSTI]

Implications of Laser Weapons. Northrop Grumman. http://Goda. 2004. High energy laser weapons: technology overview.The Bright Future of Laser Weapons WAR TECH SPRING WAR TECH

Mistry, Hemma

2009-01-01T23:59:59.000Z

63

SPITZER 24 {mu}m EXCESSES FOR BRIGHT GALACTIC STARS IN BOOeTES AND FIRST LOOK SURVEY FIELDS  

SciTech Connect (OSTI)

Optically bright Galactic stars (V {approx}< 13 mag) having f {sub {nu}}(24 {mu}m) > 1 mJy are identified in Spitzer mid-infrared surveys within 8.2 deg{sup 2} for the Booetes field of the NOAO Deep Wide-Field Survey and within 5.5 deg{sup 2} for the First Look Survey (FLS). One hundred and twenty-eight stars are identified in Booetes and 140 in the FLS, and their photometry is given. (K - [24]) colors are determined using K magnitudes from the Two Micron All Sky Survey for all stars in order to search for excess 24 {mu}m luminosity compared to that arising from the stellar photosphere. Of the combined sample of 268 stars, 141 are of spectral types F, G, or K, and 17 of these 141 stars have 24 {mu}m excesses with (K - [24]) > 0.2 mag. Using limits on absolute magnitude derived from proper motions, at least eight of the FGK stars with excesses are main-sequence stars, and estimates derived from the distribution of apparent magnitudes indicate that all 17 are main-sequence stars. These estimates lead to the conclusion that between 9% and 17% of the main-sequence FGK field stars in these samples have 24 {mu}m infrared excesses. This result is statistically similar to the fraction of stars with debris disks found among previous Spitzer targeted observations of much brighter, main-sequence field stars.

Hovhannisyan, L. R.; Mickaelian, A. M. [Byurakan Astrophysical Observatory and Isaac Newton Institute of Chile Armenian Branch, 378433, Byurakan, Aragatzotn Province (Armenia); Weedman, D. W.; Houck, J. R. [Astronomy Department, Cornell University, Ithaca, NY 14853 (United States); Le Floc'h, E. [Steward Observatory, University of Arizona, Tucson, AZ, 85721 (United States); Soifer, B. T. [Spitzer Science Center, California Institute of Technology, 220-6, Pasadena, CA 91125 (United States); Brand, K. [Space Telescope Science Institute, 3700 San Martin Dr., Baltimore, MD 21218 (United States); Dey, A.; Jannuzi, B. T. [National Optical Astronomy Observatory, 950 N. Cherry Ave., Tucson, AZ 85719 (United States)], E-mail: lilithov11@yahoo.com, E-mail: dweedman@isc.astro.cornell.edu

2009-07-15T23:59:59.000Z

64

A complete sample of long bright Swift gamma ray bursts  

Science Journals Connector (OSTI)

...complete sample of long bright Swift gamma ray bursts Gianpiero Tagliaferri 1 Ruben...subsample of Swift long bright gamma ray bursts (GRBs). The sample, made...correlations and the nature of dark bursts. gamma ray bursts|complete sample|luminosity...

2013-01-01T23:59:59.000Z

65

CONCEPTUAL DESIGN OF A BRIGHT ELECTRON INJECTOR BASED ON A LASER-DRIVEN PHOTOCATHODE RF ELECTRON GUN  

E-Print Network [OSTI]

feasibility of a Bright Electron Source that sati sfies theinvestigations on the Bright Electron Source. l'. \\III:-'TTinjected by (3) a bright electron source. We nre concerned

Chattopadhyay, S.

2010-01-01T23:59:59.000Z

66

Ultra-Bright Source Of Polarization-Entangled Photons  

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

Ultra-Bright Source Of Polarization-Entangled Photons Ultra-Bright Source Of Polarization-Entangled Photons Ultra-Bright Source Of Polarization-Entangled Photons Utilizing the process of spontaneous parametric down-conversion in a novel crystal geometry, a source of polarization-entangled photon pairs has been provided that is more than ten times brighter, per unit of pump power, than previous sources, with another factor of 30 to 75 expected to be readily achievable. Available for thumbnail of Feynman Center (505) 665-9090 Email Ultra-Bright Source Of Polarization-Entangled Photons Utilizing the process of spontaneous parametric down-conversion in a novel crystal geometry, a source of polarization-entangled photon pairs has been provided that is more than ten times brighter, per unit of pump power, than previous sources, with another factor of 30 to 75 expected to be readily

67

NRG Energy, Inc. (BrightSource) | Department of Energy  

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

enables BrightSource Energy and its partners-NRG and Google-to build the world's largest solar thermal facility. Innovation The power tower solar thermal technology used in the...

68

Template for project inclusion for Remote Sensing Systems' MSU/AMSU brightness temperatures in the C  

E-Print Network [OSTI]

Template for project inclusion for Remote Sensing Systems' MSU/AMSU brightness temperatures- Quality control procedures, including ongoing improvements. Brightness temperatures and geolocation data

69

FIRST EXPERIMENTAL RESULTS FROM DEGAS, THE QUANTUM LIMITED BRIGHTNESS ELECTRON SOURCE  

E-Print Network [OSTI]

LIMITED BRIGHTNESS ELECTRON SOURCE* M. S. Zolotorev 1 , E.limited brightness electron source, has been completed atand by a thermionic electron source placed at the DEGAS IR

Zolotorev, Max S.

2008-01-01T23:59:59.000Z

70

Accuracy of memory for brightness of colored lights measured with successive comparison method  

Science Journals Connector (OSTI)

Successive and simultaneous brightness comparisons between test colors and a comparison white were performed to study how accurately the brightness of colored lights was maintained in...

Uchikawa, Keiji; Ikeda, Mitsuo

1986-01-01T23:59:59.000Z

71

Comparative Study of Brightness/Whiteness Using Various Analytical Methods on Coated Papers Containing Colorants  

E-Print Network [OSTI]

and brightness meters. CIE and TAPPI are the most commonly used color systems in the paper industry whiteness (3) and TAPPI brightness (4) are the most commonly used measurements in the paper industry. However, CIE whiteness, and TAPPI brightness are different concepts and TAPPI brightness may lead

Fleming, Paul D. "Dan"

72

Solar Generation Has a Bright Future | Department of Energy  

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

Generation Has a Bright Future Generation Has a Bright Future Solar Generation Has a Bright Future September 12, 2012 - 3:06pm Addthis Growth of Solar Power Electricity Generation in the United States, 1999-2013 | Chart provided by the U.S. Energy Information Administration Growth of Solar Power Electricity Generation in the United States, 1999-2013 | Chart provided by the U.S. Energy Information Administration Matthew Loveless Matthew Loveless Data Integration Specialist, Office of Public Affairs The amount of electricity the United States generates from solar power has started to grow rapidly and is projected to reach 18,000 megawatt hours per day in 2013. A growing solar industry presents a tremendous economic opportunity for the United States, and that is why the Energy Department's SunShot Initiative

73

Photo of the Week: Bright Ideas | Department of Energy  

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

Bright Ideas Bright Ideas Photo of the Week: Bright Ideas November 21, 2013 - 3:47pm Addthis This week, the Energy Department's digital team has been focusing on the rivalry between two of history's most important energy-related engineers: Thomas Edison and Nikola Tesla. Edison and Tesla's developments in electric power generation and distribution made possible many later breakthroughs. This 1951 photo shows a simple string of four 100-watt light bulbs powered by the first useful electricity ever produced by nuclear power, generated on December 20, 1951, by Argonne's Experimental Breeder Reactor 1. | Photo courtesy of Argonne National Laboratory. This week, the Energy Department's digital team has been focusing on the rivalry between two of history's most important energy-related engineers:

74

A Bright Idea: New Efficiency Standards for Incandescent and Fluorescent  

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

A Bright Idea: New Efficiency Standards for Incandescent and A Bright Idea: New Efficiency Standards for Incandescent and Fluorescent Lights A Bright Idea: New Efficiency Standards for Incandescent and Fluorescent Lights July 21, 2009 - 5:18pm Addthis John Lippert Pretty soon, lighting is going to get a lot more efficient. New standards for incandescent reflector bulbs, general purpose fluorescent bulbs, and regular incandescent bulbs are going into effect beginning in approximately three years. You may be curious about how these standards will affect the most popular types of incandescent bulbs we've all used for so long: the common non-reflector 40-watt, 60-watt, 75-watt, and 100-watt bulbs. The Energy Independence and Security Act of 2007 (also known as EISA) requires that these incandescent bulbs use 30% less energy than today's

75

Burkina Faso BRIGHT Evaluation Data | Data.gov  

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

Burkina Faso BRIGHT Evaluation Data Burkina Faso BRIGHT Evaluation Data Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov » Communities » Agriculture » Data Burkina Faso BRIGHT Evaluation Data Dataset Summary Description In 2007-08, Mathematica Policy Research and the University of Ouagadougou conducted household and school surveys as part of MCC's evaluation of the Burkina Faso Threshold Program, which sought to increase educational attainment through the construction of schools and complementary interventions. The surveys were conducted in 291 villages, of which 132 were participant villages and 159 comparison villages. Tags {Burkina,Faso,evaluation,education,school,impact,aid,results,random,regression,discontinuity,"threshold program"}

76

Bright Lights From Dark Places | Department of Energy  

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

Bright Lights From Dark Places Bright Lights From Dark Places Bright Lights From Dark Places May 23, 2011 - 2:09pm Addthis Charles Rousseaux Charles Rousseaux Senior Writer, Office of Science What are the key facts? Scientists used the illumination of some 14,000 quasars -- powered by gigantic black holes at the heart of galaxies -- about 10 to 12 billion light years away to create the new map. Scientists at the Energy Department's national labs are using black holes to illuminate the distant parts of the universe in detail. Specifically, scientists from the Sloan Digital Sky Survey (SDSS-III), of which the Department's Lawrence Berkley and Brookhaven National Labs are both a part, have used quasars to construct the largest three-dimensional map of the universe ever made. Quasars are one of the most brilliant beacons in

77

Sensor Switch's Bright Manufacturing Future | Department of Energy  

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

Sensor Switch's Bright Manufacturing Future Sensor Switch's Bright Manufacturing Future Sensor Switch's Bright Manufacturing Future June 16, 2010 - 12:01pm Addthis Lindsay Gsell It's a simple concept that's saving thousands of dollars in utility bills each year: when a room is empty, turn off the lights. This is the basic concept behind Sensor Switch, a Connecticut-based manufacturer of lighting control products. Sensor Switch's occupancy sensor devices turn off lights when spaces are vacant. They also make devices that dim or turn off lights when sufficient daylight is present. Both types of products provide cost effective energy savings in indoor spaces like office buildings and warehouses. "There's an increasing public demand to save energy, which directly impacts the demand for our products," said Ben Hahn, vice president. "A key part of

78

Bright Lights and Even Brighter Ideas | Department of Energy  

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

Bright Lights and Even Brighter Ideas Bright Lights and Even Brighter Ideas Bright Lights and Even Brighter Ideas July 3, 2013 - 2:04pm Addthis Kim Kisslinger, a researcher at Brookhaven Lab's Center for Functional Nanomaterials seen here with a focused-ion beam instrument, reduced the indium gallium nitride (InGaN) samples to a thickness of just 20 nanometers to prepare them for electron microscopy. | Photo courtesy of Brookhaven National Laboratory. Kim Kisslinger, a researcher at Brookhaven Lab's Center for Functional Nanomaterials seen here with a focused-ion beam instrument, reduced the indium gallium nitride (InGaN) samples to a thickness of just 20 nanometers to prepare them for electron microscopy. | Photo courtesy of Brookhaven National Laboratory. Charles Rousseaux Charles Rousseaux

79

Argonne Theory Institute on Production of Bright Electron Beams  

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

White Paper PDF White Paper PDF Online Presentations Program PDF Reading List Note from C. Sinclair on Electron Emitters and Emission Processes PDF Attendee List PDF Argonne Theory Institute on Production of Bright Electron Beams September 22-26, 2003 Argonne National Laboratory, Argonne, IL Argonne National Laboratory recently initiated a new research program called "Theory Institute." As a part of this program, a beam physics theory week on "Production of Bright Electron Beams" will be held to review the current methods of generating high-brightness electron beams, determine what the fundamental limits are, study possible ways to improve them. Extensive discussion of issues including, but not limited to, the following: How should we quantify qualities of a beam?

80

Bright Green Spot: Fort Worth Library | Department of Energy  

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

Bright Green Spot: Fort Worth Library Bright Green Spot: Fort Worth Library Bright Green Spot: Fort Worth Library September 30, 2010 - 4:07pm Addthis Lindsay Gsell Fort Worth's Central Library is seeing tremendous energy savings by cutting down consumption. Using an Energy Efficiency and Conservation Block Grant from the Recovery Act, the city was able to have the building retrofitted and install a building management system. The system allows library staff to control the indoor climate of the library from one location to reduce operating costs of the facility. Addthis Related Articles Captured data from the monitoring system at the public library shows that energy usage was highest at 10:30a.m., a time when a number of patrons in the library would be using computers and lighting. | Photo courtesy of Texas Institute for Sustainable Technology Research

Note: This page contains sample records for the topic "all-stars shine bright" 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

High-brightness, high-current ion sources  

SciTech Connect (OSTI)

Several existing high-current dc ion sources are presented that yield positive ions and are based on gas discharges. Their common features are then outlined: extraction systems, required plasma qualities, and the production of ions from solid materials. Finally, from well-established laws, scaling rules for high-brightness ion beams are derived taking one specific case to determine the numerical constants. These rules predict that the current values of transportable beams scale proportionally to the 3/2 power of the extraction voltage, whereas the brightness strongly decreases with rising voltage.

Keller, R.

1985-01-01T23:59:59.000Z

82

Beam Imaging of a High-Brightness Elliptic Electron Gun  

SciTech Connect (OSTI)

An innovative research program is being carried out to experimentally demonstrate a high-brightness, space-charge-dominated elliptic electron beam using a non-axisymmetric permanent magnet focusing system. Results of the fabrication, initial testing and beam imaging of an elliptic electron gun are reported.

Zhou Jing; Bemis, Thomas M.; Chen Chiping; Lawrence, Michael H. [Beam Power Technology, Inc., 5 Rolling Green Lane, Chelmsford, MA 01824 (United States)

2010-11-04T23:59:59.000Z

83

Physical Asymmetries and Brightness Perception James J. Clark  

E-Print Network [OSTI]

, such as inversion. In particular, the light-dark range asymmetry is examined and is shown to result, over a certain a scene, such as looking out onto a busy street on a bright sunny day, or looking around your moonlit kitchen for a midnight snack with the lights turned off. In this paper we will be concerned

Clark, James J.

84

class rooms H.R. Bright Building 1st  

E-Print Network [OSTI]

Cao Cheng Cao Yixin Choi Jinho Chung Jiryang Creel James Crosby Ralph Duncan Brittany Fan Jia-hao Guo Elena Rodriguez #12;115 129 423D 423C 115 115 423B 423A (Welch) 115 115 419D 419C H.R. Bright Building

85

SC-RISE LECTURE SERIES BRIGHT HORIZONS IN SOLAR ENERGY  

E-Print Network [OSTI]

are being developed including biomass, geothermal, hydropower, ocean thermal energy conversion, solar the role energy storage can play. Many complex environmental factors must also be fully addressed earlySC-RISE LECTURE SERIES BRIGHT HORIZONS IN SOLAR ENERGY Sustainable Energy Opportunities, Options

86

New Near-Infrared Surface Brightness Fluctuation Models  

E-Print Network [OSTI]

We present new theoretical models for surface brightness fluctuations in the near-infrared. We show the time evolution of near-infrared brightness fluctuation properties over large age and metallicity ranges, i.e., from 12 Myr to 16 Gyr, and from Z/Zsun=1/50 to Z/Zsun=2.5, for single age, single metallicity stellar populations. All the stellar models are followed from the zero age main sequence to the central carbon ignition for massive stars, or to the end of the thermally pulsing regime of the asymptotic giant branch phase for low and intermediate mass stars. The new models are compared with observed near-infrared fluctuation absolute magnitudes and colours for a sample of Magellanic Cloud star clusters and Fornax Cluster galaxies. For star clusters younger than ~3 Gyr, the predicted near-infrared fluctuation properties are in a satisfactory agreement with observed ones over a wide range of stellar population metallicities. However, for older star clusters, the agreement between the observed and predicted near-IR brightness fluctuations depends on how the surface brightness absolute magnitudes are estimated. The computed set of models are not able to match the observed near-IR fluctuation absolute magnitudes and colours simultaneously. We argue that the observed discrepancies between the predicted and observed properties of old MC superclusters are more likely due to observational reasons.

M. Mouhcine; R. A. Gonzalez; M. C. Liu

2005-11-30T23:59:59.000Z

87

Fast microtomography using bright monochromatic x-rays  

SciTech Connect (OSTI)

A fast microtomography system for high-resolution high-speed imaging has been developed using bright monochromatic x-rays at the BL29XU beamline of SPring-8. The shortest scan time for microtomography we attained was 0.25 s in 1.25 {mu}m effective pixel size by combining the bright monochromatic x-rays, a fast rotating sample stage, and a high performance x-ray imaging detector. The feasibility of the tomography system was successfully demonstrated by visualization of rising bubbles in a viscous liquid, an interesting issue in multiphase flow physics. This system also provides a high spatial (a measurable feature size of 300 nm) or a very high temporal (9.8 {mu}s) resolution in radiographs.

Jung, J. W.; Lee, J. S.; Park, S. J.; Chang, S.; Pyo, J. [X-ray Imaging Center, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784 (Korea, Republic of); Department of Materials Science and Engineering, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784 (Korea, Republic of); Kwon, N.; Kim, J. [X-ray Imaging Center, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784 (Korea, Republic of); School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); Kohmura, Y.; Nishino, Y.; Yamamoto, M.; Ishikawa, T. [RIKEN/SPring-8, 1-1-1 Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5148 (Japan); Je, J. H. [X-ray Imaging Center, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784 (Korea, Republic of); Department of Materials Science and Engineering, Pohang University of Science and Technology, San 31, Hyoja-dong, Pohang 790-784 (Korea, Republic of); School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology, Pohang 790-784 (Korea, Republic of); RIKEN/SPring-8, 1-1-1 Kouto, Mikazuki-cho, Sayo-gun, Hyogo 679-5148 (Japan)

2012-09-15T23:59:59.000Z

88

Ultra-bright pulsed electron beam with low longitudinal emittance  

DOE Patents [OSTI]

A high-brightness pulsed electron source, which has the potential for many useful applications in electron microscopy, inverse photo-emission, low energy electron scattering experiments, and electron holography has been described. The source makes use of Cs atoms in an atomic beam. The source is cycled beginning with a laser pulse that excites a single Cs atom on average to a band of high-lying Rydberg nP states. The resulting valence electron Rydberg wave packet evolves in a nearly classical Kepler orbit. When the electron reaches apogee, an electric field pulse is applied that ionizes the atom and accelerates the electron away from its parent ion. The collection of electron wave packets thus generated in a series of cycles can occupy a phase volume near the quantum limit and it can possess very high brightness. Each wave packet can exhibit a considerable degree of coherence.

Zolotorev, Max (Oakland, CA)

2010-07-13T23:59:59.000Z

89

NREL: News Feature - Bright Ideas Chase Investor Dollars at Forum  

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

Bright Ideas Chase Investor Dollars at Forum Bright Ideas Chase Investor Dollars at Forum December 17, 2013 In this photo, two men in suits are in animated conversation, while two others listen in. In the background are other conference attendees in a crowded room. Enlarge image Ilan Gur (right), program director and technology-to-market senior advisor for ARPA-E, networks with company representatives and investors at NREL's 2013 Industry Growth Forum in Denver. Credit: Dennis Schroeder A company that can generate electricity using low-temperature waste heat was the big winner at the recent 26th annual Industry Growth Forum in downtown Denver, a gathering of people who have no qualms about making money while helping to build a more sustainable world. The annual gathering sponsored by the Energy Department's National

90

High-brightness switchable multiwavelength remote laser in air  

SciTech Connect (OSTI)

We demonstrate a harmonic-seeded switchable multiwavelength laser in air driven by intense midinfrared femtosecond laser pulses, in which population inversion occurs at an ultrafast time scale (i.e., less than {approx}200 fs) owing to direct formation of excited molecular nitrogen ions by strong-field ionization of inner-valence electrons. The bright multiwavelength laser in air opens the perspective for remote detection of multiple pollutants based on nonlinear optical spectroscopy.

Yao Jinping; Cheng Ya; Xu Zhizhan [State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China); Zeng Bin; Li Guihua; Chu Wei; Ni Jielei; Zhang Haisu [State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800 (China); Graduate School of Chinese Academy of Sciences, Beijing 100080 (China); Xu Huailiang [State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun 130012 (China); Chin, See Leang [Center for Optics, Universite Laval, Quebec City, Quebec G1V 0A6 (Canada)

2011-11-15T23:59:59.000Z

91

On the relationship between brightness temperature and thunderstorm evolution  

E-Print Network [OSTI]

ACKNOWLEDGEMENTS . TABLE OF CONTENTS LIST OF FIGURES . V1 INTRODUCTION DATA CONCEPTUAL MODEL OF THUNDERSTORM. . . . . BRIGHTNESS TEMPERATURE OVERVIEW . . . 10 THUNDERSTORM OVERVIEW 13 ANALYSIS k METHODS . . RESULTS . . . . . 20 CONCLUSIONS 32 REFERENCES... Introduction The impact of tropical precipitation on the global energy budget has long been a topic of investigation. Riehl and Malkus (1958) determined that latent heat released in tropical convection provided the balance of poleward transport of energy...

Rapp, Anita Denise

2013-02-22T23:59:59.000Z

92

Bright Skies Ahead for Moapa | Department of Energy  

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

Bright Skies Ahead for Moapa Bright Skies Ahead for Moapa Bright Skies Ahead for Moapa March 1, 2013 - 7:19pm Addthis In addition to the planned 250-MW solar farm set to begin construction in June 2013, the Moapa Band of Paiutes is working on a second 150-MW project that would use both PV and concentrated solar technologies to generate power for the Tribe. Photo from Moapa Band of Paiutes. In addition to the planned 250-MW solar farm set to begin construction in June 2013, the Moapa Band of Paiutes is working on a second 150-MW project that would use both PV and concentrated solar technologies to generate power for the Tribe. Photo from Moapa Band of Paiutes. Photo from Moapa Band of Paiutes. Photo from Moapa Band of Paiutes. Moapa Band of Paiutes Chairman William Anderson. In addition to the planned 250-MW solar farm set to begin construction in June 2013, the Moapa Band of Paiutes is working on a second 150-MW project that would use both PV and concentrated solar technologies to generate power for the Tribe. Photo from Moapa Band of Paiutes.

93

Structure of Bright 2MASS Galaxies: 2D Fits to the Ks-band Surface Brightness Profiles  

E-Print Network [OSTI]

The unprecedented sky coverage and photometric uniformity of the Two Micron All Sky Survey (2MASS) provides a rich resource for obtaining a detailed understanding of the galaxies populating our local (z<0.1) Universe. A full characterization of the physical structure of nearby galaxies is essential for theoretical and observational studies of galaxy evolution and structure formation. We have begun a quantified description of the internal structure and morphology of 10,000 bright (10brightness profiles using GIM2D. From our initial Monte Carlo tests on 77 galaxies drawn at random from the RC3, we find that the model derived structural parameter errors due to sky uncertainies are typically less than 10%.

Daniel H. McIntosh; Ari H. Maller; Neal Katz; Martin D. Weinberg

2002-09-01T23:59:59.000Z

94

Pilot Study: Measurement of Room Illuminance to Assess Automatic Brightness  

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

Study: Measurement of Room Illuminance to Assess Automatic Brightness Study: Measurement of Room Illuminance to Assess Automatic Brightness Control in Televisions Title Pilot Study: Measurement of Room Illuminance to Assess Automatic Brightness Control in Televisions Publication Type Conference Proceedings Year of Publication 2012 Authors Greenblatt, Jeffery B., Mia Forbes Pirie, Louis-Benoit Desroches, Sally M. Donovan, Clancy Donnelly, Craig Billingsley, and Chris Calwell Pagination 13 Date Published August 12 Conference Location Berkeley Abstract Automatic brightness control (ABC) is an increasingly common feature found in newtelevisions (TVs) and computer monitors. ABC is intended to adjust TV screen brightness(luminance) according to the ambient light level (room illuminance). When implementedcorrectly, this can both reduce energy consumption and improve viewing quality. The currentENERGY STAR test procedure provides for a more favorable energy use rating for TVs withABC, by measuring power consumption at two light levels (0 and 300 lux) and reporting aweighted-average energy use. However, this and other studies suggest that these levels are notrepresentative of actual TV viewing conditions.As there were currently only limited data available concerning room illuminance, weundertook a small pilot study in 2011 to begin to answer two key questions: 1. To what extent doroom illuminance levels vary depending on the location of measurement (e.g., center of theroom, on the couch, or at the TV)? 2. What room illuminance conditions are prevalent whenpeople watch TV?We measured room illuminance in the homes of nine volunteers in California andColorado to begin addressing the above two questions. Although the study had the usualdrawbacks of a pilot (limited sample size, time duration, etc.), it has, nonetheless, yielded usefulresults. The study shows definitively that there is large variability between measurements madeat different locations in the room and, therefore, that location of room illuminance measurementsis critical. Moreover, the majority (over 75%) of TV viewing occurred at illuminance levels ofless than 50 lux (though measurements of up to several hundred lux were also recorded), a resultthat was consistent with subsequent larger-scale studies. This type of information can helpdetermine how ABC-enabled TVs should be tested to best represent actual viewing conditions.

95

Posters Comparisons of Brightness Temperature Measurements and Calculations Obtained  

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

Posters Comparisons of Brightness Temperature Measurements and Calculations Obtained During the Spectral Radiance Experiment Y. Han, J. B. Snider, and E. R. Westwater National Oceanic and Atmospheric Administration Environmental Research Laboratories/Environmental Technology Laboratory Boulder, Colorado S. H. Melfi National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland R. A. Ferrare Hughes STX Corporation Lanham, Maryland Introduction In radiometric remote sensing of the atmosphere, the ability to calculate radiances from underlying state variables is fundamental. To infer temperature and water vapor profiles from satellite- or ground-based radiometers, one must determine cloud-free regions and then calculate clear-sky radiance emerging from the top of the earth's

96

Developing high brightness beams for heavy ion driven inertial fusion  

SciTech Connect (OSTI)

Heavy ion fusion (HIF) drivers require large currents and bright beams. In this paper we review the two different approaches for building HIF injectors and the corresponding ion source requirements. The traditional approach uses large aperture, low current density ion sources, resulting in a very large injector system. A more recent conceptual approach merges high current density mini-beamlets into a large current beam in order to significantly reduce the size of the injector. Experiments are being prepared to demonstrate the feasibility of this new approach.

Kwan, J.W.; Ahle, L.A.; Anders, A.; Bieniosek, F.M.; Chacon-Golcher, E.; Grote, D.P.; Henestroza, E.; Leung, K.N.; Molvik, A.W.

2001-08-29T23:59:59.000Z

97

The Spectral Energy Distribution of Fermi bright blazars  

E-Print Network [OSTI]

(Abridged) We have conducted a detailed investigation of the broad-band spectral properties of the \\gamma-ray selected blazars of the Fermi LAT Bright AGN Sample (LBAS). By combining our accurately estimated Fermi gamma-ray spectra with Swift, radio, infra-red, optical and other hard X-ray/gamma-ray data, collected within three months of the LBAS data taking period, we were able to assemble high-quality and quasi-simultaneous Spectral Energy Distributions (SED) for 48 LBAS blazars.The SED of these gamma-ray sources is similar to that of blazars discovered at other wavelengths, clearly showing, in the usual Log $\

Abdo, A A; Ajello, M; Axelsson, M; Baldini, L; Ballet, J; Barbiellini, G; Bastieri, D; Baughman, B M; Bechtol, K; Bellazzini, R; Berenji, B; Blandford, R D; Bloom, E D; Bonamente, E; Borgland, A; Bregeon, J; Brez, A; Brigida, M; Bruel, P; Burnett, T H; Buson, S; Caliandro, G A; Cameron, R A; Caraveo, P A; Casandjian, J M; Cavazzuti, E; Cecchi, C; Celik, O; Charles, E; Chaty, S; Chekhtman, A; Chiang, J; Ciprini, S; Claus, R; Cohen-Tanugi, J; Colafrancesco, S; Cominsky, L R; Conrad, J; Costamante, L; Cutini, S; Dermer, C D; de Angelis, A; de Palma, F; Digel, S W; Silva, E do Couto e; Drell, P S; Dubois, R; Dumora, D; Farnier, C; Favuzzi, C; Fegan, S J; Focke, W B; Fortin, P; Frailis, M; Fuhrmann, L; Fukazawa, Y; Funk, S; Fusco, P; Gargano, F; Gasparrini, D; Gehrels, N; Germani, S; Giebels, B; Giglietto, N; Giommi, P; Giordano, F; Glanzman, T; Godfrey, G; Grenier, I A; Grove, J E; Guillemot, L; Guiriec, S; Hadasch, D; Hanabata, Y; Harding, A K; Hayashida, M; Hays, E; Healey, S E; Horan, D; Hughes, R E; Itoh, R; Jackson, M S; Johannesson, G; Johnson, A S; Johnson, W N; Kadler, M; Kamae, T; Katagiri, H; Kataoka, J; Kawai, N; Kerr, M; Knodlseder, J; Kocian, M L; Kuss, M; Lande, J; Latronico, L; Longo, F; Loparco, F; Lott, B; Lovellette, M N; Lubrano, P; Madejski, G M; Makeev, A; Max-Moerbeck, W; Mazziotta, M N; McConville, W; McEnery, J E; Meurer, C; Michelson, P F

2009-01-01T23:59:59.000Z

98

Effects of recycling peroxide liquor on brightness of mechanical pulp  

SciTech Connect (OSTI)

The high cost of bleaching softwood mechanical pulps to 80% brightness with peroxide can be partly offset by recycling the unreacted peroxide in the effluent. However, the situation is complicated by the presence of dissolved organic material, aged silicate, and calcium extracted from the pulp. This study examines the effects of these materials on brightening efficiency. Dissolved organic material did not consume peroxide in subsequent cycles. Aged silicate stabilized peroxide as efficiently as fresh silicate. Interaction of silicate with calcium and magnesium caused silicon residue to precipitate on the fibers, with deposition increasing with the number of cycles. Calcium silicate adhered strongly to stainless steel, while magnesium silicate did not.

Froass, W.C. (International Paper Co., Tuxedo, NY (United States)); Omori, S.; Francis, R.C.; Dence, C.W. (State Univ. of New York, Syracuse, NY (United States). Empire State Paper Research Inst.)

1993-11-01T23:59:59.000Z

99

NO?A's shining moment  

Science Journals Connector (OSTI)

...Physicists could prove that was the case if they could observe a hypothesized form of radioactive decay called neutrinoless double beta decay that depends on that oneness of neutrino and antineutrino. But the rate of that decay depends on the electron...

Adrian Cho

2014-09-26T23:59:59.000Z

100

Shining light through the Sun  

E-Print Network [OSTI]

It is shown that the Sun can become partially transparent to high energy photons in the presence of a pseudo-scalar. In particular, if the axion interpretation of the PVLAS result were true then up to 2% of GeV energy gamma rays might pass through the Sun, while an even stronger effect is expected for some axion parameters. We discuss the possibilities of observing this effect. Present data are limited to the observation of the solar occultation of 3C 279 by EGRET in 1991; 98% C.L. detection of a non-zero flux of gamma rays passing through the Sun is not yet conclusive. Since the same occultation happens every October, future experiments, e.g. GLAST, are expected to have better sensitivity.

Malcolm Fairbairn; Timur Rashba; Sergey Troitsky

2007-05-19T23:59:59.000Z

Note: This page contains sample records for the topic "all-stars shine bright" 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

Why does the sun shine?  

Science Journals Connector (OSTI)

In order to understand the fundamental properties of a star in radiative equilibrium a simplified model is introduced which yields relations for physical quantities by elementary methods. In particular the dependence of these quantities on the parameters of the star and on the fundamental constants of nature is exhibited. Numerical evaluation of these relations is in good agreement with observation and with more elaborate calculations.

Michael Nauenberg; Victor F. Weisskopf

1978-01-01T23:59:59.000Z

102

BRIGHT SOURCE SUBTRACTION REQUIREMENTS FOR REDSHIFTED 21 cm MEASUREMENTS  

SciTech Connect (OSTI)

The H I 21 cm transition line is expected to be an important probe into the cosmic dark ages and epoch of reionization. Foreground source removal is one of the principal challenges for the detection of this signal. This paper investigates the extragalactic point source contamination and how accurately bright sources ({approx}>1 Jy) must be removed in order to detect 21 cm emission with upcoming radio telescopes such as the Murchison Widefield Array. We consider the residual contamination in 21 cm maps and power spectra due to position errors in the sky model for bright sources, as well as frequency-independent calibration errors. We find that a source position accuracy of 0.1 arcsec will suffice for detection of the H I power spectrum. For calibration errors, 0.05% accuracy in antenna gain amplitude is required in order to detect the cosmic signal. Both sources of subtraction error produce residuals that are localized to small angular scales, k{sub perpendicular} {approx}> 0.05 Mpc{sup -1}, in the two-dimensional power spectrum.

Datta, A. [New Mexico Tech, Socorro, NM 87801 (United States); Bowman, J. D. [California Institute of Technology, Pasadena, CA 91125 (United States); Carilli, C. L., E-mail: adatta@nrao.ed [National Radio Astronomy Observatory, Socorro, NM 87801 (United States)

2010-11-20T23:59:59.000Z

103

Statistical isotropy violation of the CMB brightness fluctuations  

SciTech Connect (OSTI)

Certain anomalies at large angular scales in the cosmic microwave background (CMB) measured by WMAP have been suggested as possible evidence of breakdown of statistical isotropy (SI). SI violation of cosmological perturbations is a generic feature of ultralarge scale structure of the cosmos and breakdown of global symmetries. Most CMB photons free-stream to the present from the surface of last scattering. It is thus reasonable to expect statistical isotropy violation in the CMB photon distribution observed now to have originated from SI violation in the baryon-photon fluid at last scattering, in addition to anisotropy of the primordial power spectrum studied earlier in the literature. We consider the generalized anisotropic brightness distribution fluctuations, {Delta}(k-vector, n-circumflex, {tau}) (at conformal time {tau}) in contrast to the SI case where it is simply a function of |k-vector| and k-circumflex{center_dot}n-circumflex. The brightness fluctuations expanded in bipolar spherical harmonic (BipoSH) series can then be written as {Delta}{sub l{sub 1}}{sub l{sub 2}}{sup LM}(k,{tau}), where L>0 terms encode deviations from statistical isotropy. Violation of SI encoded in the present off-diagonal elements of the harmonic space correlation , equivalently, the BipoSH coefficients A{sub ll}{sup 'LM}, are then related to the generalized BipoSH brightness fluctuation terms at present. We study the evolution of {Delta}{sub l{sub 1}}{sub l{sub 2}}{sup LM}(k,{tau}) from nonzero terms {Delta}{sub l{sub 3}}{sub l{sub 4}}{sup LM}(k,{tau}{sub s}) at last scattering, in the free-streaming regime. We show that the terms with given BipoSH multipole LM evolve independently. Moreover, similar to the SI case, power at small spherical harmonic (SH) multipoles of {Delta}{sub l{sub 3}}{sub l{sub 4}}{sup LM}(k,{tau}{sub s}) at the last scattering is transferred to {Delta}{sub l{sub 1}}{sub l{sub 2}}{sup LM}(k,{tau}) at larger SH multipoles. The structural similarity is more apparent in the asymptotic expression for large values of the final SH multipoles. This formalism allows an elegant identification of any SI violation observed today to a possible origin in SI violating physics present in the baryon-photon fluid. This is illustrated for the known result of SI violating angular correlations due to the presence of a homogeneous magnetic field in the baryon-photon fluid.

Aich, Moumita; Souradeep, Tarun [Inter-University Centre for Astronomy and Astrophysics, Post Bag 4, Ganeshkhind, Pune 411 007 (India)

2010-04-15T23:59:59.000Z

104

Multiwavelength Coverage of a Bright Flare from Sgr A  

SciTech Connect (OSTI)

The dynamical center of our galaxy hosts a supermassive black hole, Sgr A*, which has been the target of an extensive multiwavelength campaign for a week in April 2007. We report here the detection of a bright flare from the vicinity of the horizon, observed simultaneously in X-rays (XMM-Newton) and NIR (VLT/NACO) on April 4{sup th}. For the first time, such an event also benefitted from a soft {gamma}-rays (INTEGRAL/ISGRI) and MIR (VLT/VISIR) coverage, which enabled us to derive upper limits at both ends of Sgr A* spectral energy distribution (SED). We discuss the physical implications of the contemporaneous light curves as well as the SED, in terms of synchrotron, synchrotron self-Compton and external Compton emission processes.

Trap, G.; Goldwurm, A. [Service d'Astrophysique (SAp)/IRFU/DSM/CEA Saclay-Bat. 709, 91191 Gif-sur-Yvette Cedex (France); AstroParticule and Cosmologie (APC)/Universite Paris VII/CNRS/CEA/Observatoire de Paris-Bat. Condorcet, 10, rue Alice Domon et Leonie Duquet, 75205 Paris Cedex 13 (France); Terrier, R. [AstroParticule and Cosmologie (APC)/Universite Paris VII/CNRS/CEA/Observatoire de Paris-Bat. Condorcet, 10, rue Alice Domon et Leonie Duquet, 75205 Paris Cedex 13 (France)

2009-05-11T23:59:59.000Z

105

Hacking commercial quantum cryptography systems by tailored bright illumination  

E-Print Network [OSTI]

The peculiar properties of quantum mechanics allow two remote parties to grow a private, secret key, even if the eavesdropper can do anything permitted by the laws of nature. In quantum key distribution (QKD) the parties exchange non-orthogonal or entangled quantum states to generate quantum correlated classical data. Consequently, QKD implementations always rely on detectors to measure the relevant quantum property of the signal states. However, practical detectors are not only sensitive to quantum states. Here we show how an eavesdropper can exploit such deviations from the ideal behaviour: We demonstrate experimentally how the detectors in two commercially available QKD systems can be fully remote controlled using specially tailored bright illumination. This makes it possible to acquire the full secret key without leaving any trace; we propose an eavesdropping apparatus built of off-the-shelf components. The loophole is likely to be present in most QKD systems using avalanche photo diodes (APDs) to detect ...

Lydersen, Lars; Wittmann, Christoffer; Elser, Dominique; Skaar, Johannes; Makarov, Vadim; 10.1038/NPHOTON.2010.214

2010-01-01T23:59:59.000Z

106

Hacking commercial quantum cryptography systems by tailored bright illumination  

E-Print Network [OSTI]

The peculiar properties of quantum mechanics allow two remote parties to communicate a private, secret key, which is protected from eavesdropping by the laws of physics. So-called quantum key distribution (QKD) implementations always rely on detectors to measure the relevant quantum property of single photons. Here we demonstrate experimentally that the detectors in two commercially available QKD systems can be fully remote-controlled using specially tailored bright illumination. This makes it possible to tracelessly acquire the full secret key; we propose an eavesdropping apparatus built of off-the-shelf components. The loophole is likely to be present in most QKD systems using avalanche photodiodes to detect single photons. We believe that our findings are crucial for strengthening the security of practical QKD, by identifying and patching technological deficiencies.

Lars Lydersen; Carlos Wiechers; Christoffer Wittmann; Dominique Elser; Johannes Skaar; Vadim Makarov

2010-08-26T23:59:59.000Z

107

AGN/galaxy separation in the ROSAT Bright Survey  

E-Print Network [OSTI]

The X-ray luminosity function (XLF) of galaxies is dominated by AGN (classified by their optical spectra) above Lx=10**42 erg/s, below this value by normal galaxies. The X-ray flux of AGN at low X-ray luminosity therefore contains contributions from stellar processes (winds, supernova explosions etc.). Until now it is not clear which fraction of the observed X-ray flux has to be associated to the underlying stellar emission. We started to investigate a complete luminosity-limited sample of AGN and galaxies with log Lx < 42.5 to discriminate between the nuclear and galaxy flux. Using the ROSAT HRI data we calculated the radial wobble-corrected profiles of the sources which were compared to a new HRI point spread function (PSF) template derived from 21 X-ray bright stars. The majority of the low-luminosiy AGN shows evidence for a significant fraction of extended X-ray emission.

I. Lehmann; G. Hasinger; A. D. Schwope; Th. Boller

1998-10-14T23:59:59.000Z

108

New family of tiny crystals glow bright in LED lights | ornl...  

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

New family of tiny crystals glow bright in LED lights ORNL scientist probes atomic structure to improve materials' luminescence efficiency Oak Ridge National Laboratory scientists...

109

High-current-density, high brightness cathodes for free electron laser applications  

SciTech Connect (OSTI)

This report discusses the following topics: brightness and emittance of electron beams and cathodes; general requirements for cathodes in high brightness electron guns; candidate cathode types; plasma and field emission cathodes; true field emission cathodes; oxide cathodes; lanthanum hexaborides cathodes; laser driven thermionic cathodes; laser driven photocathodes; impregnated porous tungsten dispenser cathodes; and choice of best performing cathode types.

Green, M.C. (Varian Associates, Palo Alto, CA (USA). Palo Alto Microwave Tube Div.)

1987-06-01T23:59:59.000Z

110

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

E-Print Network [OSTI]

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

Joseph, Robert D.

111

DOE Finalizes $1.6 Billion Loan Guarantee for BrightSource Energy Inc. |  

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

Finalizes $1.6 Billion Loan Guarantee for BrightSource Energy Finalizes $1.6 Billion Loan Guarantee for BrightSource Energy Inc. DOE Finalizes $1.6 Billion Loan Guarantee for BrightSource Energy Inc. April 11, 2011 - 12:00am Addthis Washington D.C. - Announced this afternoon via Twitter.com/energy, the U.S. Department of Energy finalized $1.6 billion in loan guarantees to support the Ivanpah Solar Energy Generating System, three related utility-scale concentrated solar power plants. The Recovery Act funded project, sponsored by BrightSource Energy, Inc., will be located on federally-owned land in the Mojave Desert in southeastern California, near the Nevada border, and will be one of the world's largest concentrated solar power complexes. BrightSource estimates the project will create approximately 1,000 construction jobs and 86 operations and maintenance

112

BrightPhase Energy Inc formerly Solar Focus | Open Energy Information  

Open Energy Info (EERE)

Energy Inc formerly Solar Focus Energy Inc formerly Solar Focus Jump to: navigation, search Name BrightPhase Energy Inc (formerly Solar Focus) Place Fletcher, North Carolina Zip 28732 Sector Solar Product Solar Focus develops thermal and electric reflecting concentrator systems for water heating and electricity generation. References BrightPhase Energy Inc (formerly Solar Focus)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. BrightPhase Energy Inc (formerly Solar Focus) is a company located in Fletcher, North Carolina . References ↑ "[ BrightPhase Energy Inc (formerly Solar Focus)]" Retrieved from "http://en.openei.org/w/index.php?title=BrightPhase_Energy_Inc_formerly_Solar_Focus&oldid=343041"

113

Graphical Methods for Quantifying Macromolecules through Bright Field Imaging  

SciTech Connect (OSTI)

Bright ?eld imaging of biological samples stained with antibodies and/or special stains provides a rapid protocol for visualizing various macromolecules. However, this method of sample staining and imaging is rarely employed for direct quantitative analysis due to variations in sample fixations, ambiguities introduced by color composition, and the limited dynamic range of imaging instruments. We demonstrate that, through the decomposition of color signals, staining can be scored on a cell-by-cell basis. We have applied our method to Flbroblasts grown from histologically normal breast tissue biopsies obtained from two distinct populations. Initially, nuclear regions are segmented through conversion of color images into gray scale, and detection of dark elliptic features. Subsequently, the strength of staining is quanti?ed by a color decomposition model that is optimized by a graph cut algorithm. In rare cases where nuclear signal is significantly altered as a result of samplepreparation, nuclear segmentation can be validated and corrected. Finally, segmented stained patterns are associated with each nuclear region following region-based tessellation. Compared to classical non-negative matrix factorization, proposed method (i) improves color decomposition, (ii) has a better noise immunity, (iii) is more invariant to initial conditions, and (iv) has a superior computing performance

Chang, Hang; DeFilippis, Rosa Anna; Tlsty, Thea D.; Parvin, Bahram

2008-08-14T23:59:59.000Z

114

Magnitude-range brightness variations of overactive K giants  

E-Print Network [OSTI]

We study three representative, overactive spotted K giants (IL Hya, XX Tri, and DM UMa) known to exhibit V-band light variations between 0.65-1.05 mags. Our aim is to find the origin of their large brightness variation. We employ long-term phase-resolved multicolor photometry, mostly from automatic telescopes, covering 42 yr for IL Hya, 28 yr for XX Tri, and 34 yr for DM UMa. For one target, IL Hya, we present a new Doppler image from NSO data taken in late 1996. Effective temperatures for our targets are determined from all well-sampled observing epochs and are based on a V-I_C color-index calibration. The effective temperature change between the extrema of the rotational modulation for IL Hya and XX Tri is in the range 50-200 K. The bolometric flux during maximum of the rotational modulation, i.e., the least spotted states, varied by up to 39% in IL Hya and up to 54% in XX Tri over the course of our observations. We emphasize that for IL Hya this is just about half of the total luminosity variation that can...

Olh, K; K?vri, Zs; Granzer, T; Strassmeier, K G; Kriskovics, L; Vida, K

2014-01-01T23:59:59.000Z

115

Numerical Optimization of Electron Beams for High Brightness x- and {gamma}-Ray Production  

SciTech Connect (OSTI)

Production of high-brightness x- and {gamma}-ray beams using Compton-scattering schemes requires high-brightness electron beams; to minimize the output photon bandwidth, the electron beam emittance must also be minimized. This emittance minimization is in conflict with the desire to increase the electron bunch charge and maximize the number of scatterers at the interaction point. We study here, using a combination of PARMELA and well-benchmarked, Compton-scattering codes, the impact of laser temporal and spatial profiles on the emittance produced in a photoinjector, and the trade-off between charge and emittance in scattered photon brightness and flux.

Gibson, David J.; Anderson, Scott G.; Hartemann, Frederic V.; Siders, Craig W.; Tremaine, Aaron M.; Barty, Christopher P. J. [Lawrence Livermore National Laboratory, Livermore, CA 94550 (United States)

2006-11-27T23:59:59.000Z

116

The bright end of the exo-Zodi luminosity function: disc evolution and implications for exo-Earth detectability  

Science Journals Connector (OSTI)

......research-article Article The bright end of the exo-Zodi luminosity...important long-term goal of humankind is to find and communicate with...sample to characterise the bright end of the warm dust luminosity...the Kepler field at the bright end, which most likely arises due......

G. M. Kennedy; M. C. Wyatt

2013-01-01T23:59:59.000Z

117

Bright Young Minds for a Clean Energy Future | Department of Energy  

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

Bright Young Minds for a Clean Energy Future Bright Young Minds for a Clean Energy Future Bright Young Minds for a Clean Energy Future August 16, 2011 - 12:11pm Addthis Bright Young Minds for a Clean Energy Future Sarah Jane Maxted Special Assistant, Office of Energy Efficiency & Renewable Energy How can I participate? Registration begins August 15 and ends on October 7, 2011. Students are encouraged to register with their teachers by September 30, 2011 to take advantage of the full energy savings period. It's that time again: Back to school season is officially here! Time for students to prepare for the new experiences and challenges that they will encounter throughout the upcoming school year. One such challenge-from the Energy Department in partnership with the National Science Teachers Association (NSTA)-aims to tap into the

118

Ashland Electric Utility - Bright Way to Heat Water Rebate | Department of  

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

Ashland Electric Utility - Bright Way to Heat Water Rebate Ashland Electric Utility - Bright Way to Heat Water Rebate Ashland Electric Utility - Bright Way to Heat Water Rebate < Back Eligibility Residential Savings Category Heating & Cooling Solar Water Heating Maximum Rebate $1,000 Program Info State Oregon Program Type Utility Rebate Program Rebate Amount $0.40/annual kWh saved (on average $800 to $1,000) Provider Ashland Electric Utilities Department The City of Ashland Conservation Division offers a solar water heating program to its residential electric customers who currently use an electric water heater. Under "The Bright Way to Heat Water Program," qualified home owners may choose either the cash rebate or a zero-interest loan. Cash rebates of up to $1,000 are available for approved systems. The rebate

119

Dynamics of laser-produced Sn microplasma for a high-brightness extreme ultraviolet light source  

E-Print Network [OSTI]

EUV light source is excessive in terms of power, cost, and size foot- print . An HVM lithography etendue on the order of 0.03 mm2 sr , and bright several watts of power . This means that the focal spot

Najmabadi, Farrokh

120

E-Print Network 3.0 - area telescope bright Sample Search Results  

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

<< < 1 2 3 4 5 > >> 1 NASSP OT1: Telescopes I-217 Feb 2010 1 OpticalIR Observational Astronomy Summary: ms images of a bright star 12;NASSP OT1: Telescopes I-217 Feb 2010 13...

Note: This page contains sample records for the topic "all-stars shine bright" 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

Bright High Average Power Table-top Soft X-Ray Lasers  

SciTech Connect (OSTI)

We have demonstrated the generation of bright soft x-ray laser pulses with record-high average power from compact plasma amplifiers excited by ultrafast solid state lasers. These lasers have numerous applications in nanoscience and nanotechnology.

Rocca, Jorge [Colorado State University, Fort Collins; Reagan, Brendon [Colorado State University, Fort Collins; Wernsing, Keith [Colorado State University, Fort Collins; Luther, Brad [Colorado State University, Fort Collins; Curtis, Alden [Colorado State University, Fort Collins; Nichols,, Anthony [Colorado State University, Fort Collins; Wang, Yong [Colorado State University, Fort Collins; Alessi, David [Colorado State University, Fort Collins; Martz, Dale [Colorado State University, Fort Collins; Yin, Liang [Colorado State University, Fort Collins; Wang, Shoujun [Colorado State University, Fort Collins; Berrill, Mark A [ORNL; Furch, Federico [Colorado State University, Fort Collins; Woolston, Mark [Colorado State University, Fort Collins; Patel, Dinesh [Colorado State University, Fort Collins; Marconi, Mario [Colorado State University, Fort Collins; Menoni, Carmen [Colorado State University, Fort Collins

2012-01-01T23:59:59.000Z

122

Panel Discussion: The SunShot Initiative: The Future is Bright  

Broader source: Energy.gov [DOE]

The future of solar energy can be bright. Solar energy is growing quickly; in certain parts of the U.S., solar is on the precipice of becoming a mainstream generation source . As solar powers...

123

Axial Ratio of Edge-On Spiral Galaxies as a Test For Extended Bright Radio Halos  

E-Print Network [OSTI]

We use surface brightness contour maps of nearby edge-on spiral galaxies to determine whether extended bright radio halos are common. In particular, we test a recent model of the spatial structure of the diffuse radio continuum by Subrahmanyan and Cowsik which posits that a substantial fraction of the observed high-latitude surface brightness originates from an extended Galactic halo of uniform emissivity. Measurements of the axial ratio of emission contours within a sample of normal spiral galaxies at 1500 MHz and below show no evidence for such a bright, extended radio halo. Either the Galaxy is atypical compared to nearby quiescent spirals or the bulk of the observed high-latitude emission does not originate from this type of extended halo.

Singal, J; Jones, E; Dunlap, H

2015-01-01T23:59:59.000Z

124

The Acute Side Effects of Bright Light Therapy: A Placebo-Controlled Investigation  

E-Print Network [OSTI]

Despite the emergence of numerous clinical and non-clinical applications of bright light therapy (LT) in recent decades, the prevalence and severity of LT side effects have not yet been fully explicated. A few adverse LT ...

Botanov, Yevgeny; Ilardi, Stephen S.

2013-09-24T23:59:59.000Z

125

Special government etalon of the brightness energy unit at the temperature of tin solidification  

Science Journals Connector (OSTI)

The special government etalon of the brightness energy unit at the tin solidification temperature, created in VNIIM, assures the reproduction of the unit and transmission of its dimension in conformity ... scheme...

V. V. Babushkin; I. V. Libova

1974-06-01T23:59:59.000Z

126

E-Print Network 3.0 - artificial sky brightness Sample Search...  

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

even if the entire sky is assumed to have uniform brightness. 2 Theory Consider a patch of sky which... to be 1335.4 ohm. Using again the ... Source: Ellingson, Steven W. -...

127

Development of a High-Brightness VHF Electron Source at LBNL  

E-Print Network [OSTI]

A HIGH-BRIGHTNESS VHF ELECTRON SOURCE AT LBNL* S. Lidia # ,design for a 750kV electron source and beam injection systemFEL projects require electron beam sources that can generate

Lidia, Steven M.; Sannibale, Fernando; Staples, John W.; Virostek, Steve P.; Wells, Russell P.

2008-01-01T23:59:59.000Z

128

Supernovae of the Same Brightness, Cut From Vastly Different Cosmic Cloth  

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

Supernovae of the Supernovae of the Same Brightness, Cut From Vastly Different Cosmic Cloth Supernovae of the Same Brightness, Cut From Vastly Different Cosmic Cloth Berkeley Lab researchers make historic observation of rare Type 1a Supernova August 23, 2012 | Tags: Astrophysics Linda Vu, lvu@lbl.gov, +1 510 495 2402 ptf11kx.png The supernova PTF 11kx can be seen as the blue dot on the galaxy. The image was taken when the supernova was near maximum brightness by the Faulkes Telescope North. The system is located approximately 600 million light years away in the constellation Lynx. Image Credit: BJ Fulton (Las Cumbres Observatory Global Telescope Network) Exploding stars called Type 1a supernova are ideal for measuring cosmic distance because they are bright enough to spot across the Universe and

129

Ashland Electric Utility - Bright Way to Heat Water Loan | Department of  

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

Ashland Electric Utility - Bright Way to Heat Water Loan Ashland Electric Utility - Bright Way to Heat Water Loan Ashland Electric Utility - Bright Way to Heat Water Loan < Back Eligibility Residential Savings Category Heating & Cooling Solar Water Heating Maximum Rebate not specified Program Info State Oregon Program Type Utility Loan Program Rebate Amount not specified Provider Ashland Electric Utilities Department The City of Ashland Conservation Division offers a solar water heating program to residential electric customers who currently use an electric water heater. Under "The Bright Way to Heat Water Program," qualified home owners may take advantage of the City's zero-interest loan program or a cash rebate. Customers choosing a loan repay it as part of their monthly utility bill. Interested customers are provided site evaluations, consumer

130

Correlation analysis of mean global radiation values with mean brightness values for one year  

E-Print Network [OSTI]

CORRELATION ANALYSIS OF MEAN GLOBAL RADIATION VALUES WITH MEAN BRIGHTNESS VALUES FOR ONE YEAR A Thesis EDWARD FRANKLIN KOLCZYNSKI Submitted to the Graduate College of Texas ASSAM University in partial fulfillment oi' the requirement... for the degree of MASTER OF SCIENCE December 1971 Major Subject: Meteorology CORRELATION ANALYSIS OF MEAN GLOBAL RADIATION VALUES WITH MEAN BRIGHTNESS VALUES FOR ONE YEAR A Thesis EDWARD FRANKLIN KOLCZYNSKI Approved as to style and content by: airman...

Kolczynski, Edward Franklin

2012-06-07T23:59:59.000Z

131

The Bright Lights in New York Could Be Solar | Department of Energy  

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

The Bright Lights in New York Could Be Solar The Bright Lights in New York Could Be Solar The Bright Lights in New York Could Be Solar September 4, 2012 - 12:29pm Addthis The NYC Solar Map allows users to estimate the solar energy potential for every building in New York City’s five boroughs. The NYC Solar Map allows users to estimate the solar energy potential for every building in New York City's five boroughs. Minh Le Minh Le Program Manager, Solar Program What is the New York City Solar Map The New York City Solar Map is an interactive online tool that allows users to estimate the solar energy potential for every building in New York City. The map also highlights existing solar installations, displays real-time solar energy production citywide, and allows users to estimate the costs, incentives, and payback period for investing in solar.

132

Cracking Molecular Structures with Bright Lights - and a Few Good Eggs |  

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

Cracking Molecular Structures with Bright Lights - and a Few Good Cracking Molecular Structures with Bright Lights - and a Few Good Eggs Cracking Molecular Structures with Bright Lights - and a Few Good Eggs June 22, 2012 - 11:04am Addthis This rendering shows a lysozyme structural model against its X-ray diffraction pattern from SLAC’s Linac Coherent Light Source (LCLS), a powerful X-ray laser facility. Researchers have achieved high-resolution images of these simple biomolecules using advanced crystallography at LCLS. | Photo by Anton Barty/DESY This rendering shows a lysozyme structural model against its X-ray diffraction pattern from SLAC's Linac Coherent Light Source (LCLS), a powerful X-ray laser facility. Researchers have achieved high-resolution images of these simple biomolecules using advanced crystallography at LCLS.

133

The Bright Lights in New York Could Be Solar | Department of Energy  

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

The Bright Lights in New York Could Be Solar The Bright Lights in New York Could Be Solar The Bright Lights in New York Could Be Solar September 4, 2012 - 12:29pm Addthis The NYC Solar Map allows users to estimate the solar energy potential for every building in New York City’s five boroughs. The NYC Solar Map allows users to estimate the solar energy potential for every building in New York City's five boroughs. Minh Le Minh Le Program Manager, Solar Program What is the New York City Solar Map The New York City Solar Map is an interactive online tool that allows users to estimate the solar energy potential for every building in New York City. The map also highlights existing solar installations, displays real-time solar energy production citywide, and allows users to estimate the costs, incentives, and payback period for investing in solar.

134

A Characterization of the Brightness Oscillations During Thermonuclear Bursts From 4U 1636-536  

E-Print Network [OSTI]

The discovery of nearly coherent brightness oscillations during thermonuclear X-ray bursts from six neutron-star low-mass X-ray binaries has opened up a new way to study the propagation of thermonuclear burning, and may ultimately lead to greater understanding of thermonuclear propagation in other astrophysical contexts, such as in Type Ia supernovae. Here we report detailed analyses of the ~580 Hz brightness oscillations during bursts from 4U 1636-536. We investigate the bursts as a whole and, in more detail, the initial portions of the bursts. We analyze the ~580 Hz oscillations in the initial 0.75 seconds of the five bursts that were used in a previous search for a brightness oscillation at the expected ~290 Hz spin frequency, and find that if the same frequency model describes all five bursts there is insufficient data to require more than a constant frequency or, possibly, a frequency plus a frequency derivative. Therefore, although it is appropriate to use an arbitrarily complicated model of the ~580 Hz oscillations to generate a candidate waveform for the ~290 Hz oscillations, models with more than two parameters are not required by the data. For the bursts as a whole we show that the characteristics of the brightness oscillations vary greatly from burst to burst. We find, however, that in at least one of the bursts, and possibly in three of the four that have strong brightness oscillations throughout the burst, the oscillation frequency reaches a maximum several seconds into the burst and then decreases. This behavior has not been reported previously for burst brightness oscillations, and it poses a challenge to the standard burning layer expansion explanation for the frequency changes.

M. Coleman Miller

1999-04-08T23:59:59.000Z

135

The Los Alamos bright sources: Review of the physics and the diagnostic technology  

SciTech Connect (OSTI)

The investigation of many interesting physical phenomena in nature requires the generation of high-energy-density fields. To produce energy densities exceeding 10/sup 7/ J/cm/sup 3/ requires focusing a very powerful, very bright, short pulse laser. This talk will present a review of the physics that will be investigated with one such laser system, will describe the laser used, will describe the laser diagnostics, and will describe the physics diagnostics. The talk will emphasize the areas of research that will help the diagnostics of different aspects of these bright sources, and their interactions, especially the diagnostics of hot small volumes in picosecond time scales. 15 refs., 7 figs.

Kyrala, G.A.; Schappert, G.T.; Jones, L.A.; Lee, P.H.Y.; Casperson, D.E.; Cobble, J.A.; Gomez, C.C.; Lee, S.A.; Taylor, A.J.; Tallman, C.R.

1989-01-01T23:59:59.000Z

136

Heat dissipation performance of a high-brightness LED package assembly using high-thermal conductivity filler  

Science Journals Connector (OSTI)

This paper presents a thermal analysis and experimental validation of natural convective heat transfer of a high-brightness light-emitting diode (LED) package assembly. The substrate...

Yung, K C; Liem, H; Choy, H S

2013-01-01T23:59:59.000Z

137

White light emitting diode as liquid crystal display backlight ; High brightness light emitting diode as liquid crystal display backlight .  

E-Print Network [OSTI]

??The discovery of high brightness (white) light emitting diode (LED) is considered as a real threat to the current lighting industry in various applications. One (more)

Soon, Chian Myau

2007-01-01T23:59:59.000Z

138

DEVELOPMENT OF A HIGH BRIGHTNESS ELECTRON GUN FOR THE ACCELERATOR TEST FACILITY AT BROOKHAVEN NATIONAL LABORATORY*  

E-Print Network [OSTI]

954 DEVELOPMENT OF A HIGH BRIGHTNESS ELECTRON GUN FOR THE ACCELERATOR TEST FACILITY AT BROOKHAVEN, New York 11973 and K. McDonald Princeton [Jniversity Abstract An electron gun utilizing a radio). Here we report on the de;$n of the electron gun which will provide r.f. bunches of up to 10 electrons

McDonald, Kirk

139

The Usage of Screen-Level Parameters and Microwave Brightness Temperature for Soil Moisture Analysis  

Science Journals Connector (OSTI)

This study focuses on testing two different soil moisture analysis systems based on screen-level parameters (2-m temperature T2m, 2-m relative humidity RH2m) and 1.4-GHz passive microwave brightness temperatures TB. First, a simplified extended ...

G. Seuffert; H. Wilker; P. Viterbo; M. Drusch; J-F. Mahfouf

2004-06-01T23:59:59.000Z

140

BRIGHT BROADBAND AFTERGLOWS OF GRAVITATIONAL WAVE BURSTS FROM MERGERS OF BINARY NEUTRON STARS  

SciTech Connect (OSTI)

If double neutron star mergers leave behind a massive magnetar rather than a black hole, then a bright early afterglow can follow the gravitational wave burst (GWB) even if there is no short gamma-ray burst (SGRB)-GWB association or if there is an association but the SGRB does not beam toward Earth. Besides directly dissipating the proto-magnetar wind, as suggested by Zhang, here we suggest that the magnetar wind could push the ejecta launched during the merger process and, under certain conditions, would reach a relativistic speed. Such a magnetar-powered ejecta, when interacting with the ambient medium, would develop a bright broadband afterglow due to synchrotron radiation. We study this physical scenario in detail and present the predicted X-ray, optical, and radio light curves for a range of magnetar and ejecta parameters. We show that the X-ray and optical light curves usually peak around the magnetar spin-down timescale ({approx}10{sup 3}-10{sup 5} s), reaching brightnesses readily detectable by wide-field X-ray and optical telescopes, and remain detectable for an extended period. The radio afterglow peaks later, but is much brighter than the case without a magnetar energy injection. Therefore, such bright broadband afterglows, if detected and combined with GWBs in the future, would be a probe of massive millisecond magnetars and stiff equations of state for nuclear matter.

Gao He; Ding Xuan; Wu Xuefeng [Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 (China); Zhang Bing [Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154 (United States); Dai Zigao, E-mail: xfwu@pmo.ac.cn, E-mail: zhang@physics.unlv.edu, E-mail: dzg@nju.edu.cn [School of Astronomy and Space Science, Nanjing University, Nanjing 210093 (China)

2013-07-10T23:59:59.000Z

Note: This page contains sample records for the topic "all-stars shine bright" 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

23 Figure 3.1: Color transition from purple/maroon argillites into bright red  

E-Print Network [OSTI]

;#12;#12;#12;#12;#12;#12;#12;#12;23 Figure 3.1: Color transition from purple/maroon argillites into bright red argillites. This transition weathering, possibly sideritic layer in the lower part of the picture. The fine grained overlying red Island Section, lower maroon and purple part in red unit (level: 9 meter; Figure 3.3); south shore Gull

Kidd, William S. F.

142

Special Sensor Microwave Imager and Sounder (SSMIS) Antenna Brightness Temperature Data Record (TDR)  

E-Print Network [OSTI]

Special Sensor Microwave Imager and Sounder (SSMIS) Antenna Brightness Temperature Data Record (TDR/NESDIS/Center for Satellite Applications and Research Contributors from: Banghua Yan (Lead), QSS/JCSDA Ninghai Sun, IMSG, Metoffice, UK Yong Han, STAR/JCSDA Mark Liu, QSS/JCSDA Distribution to: Ralph Ferrrao, STAR Tom Schott, OSD

143

Bright broad-band afterglows of gravitational wave bursts from mergers of binary neutron stars  

E-Print Network [OSTI]

If double neutron star mergers leave behind a massive magnetar rather than a black hole, a bright early afterglow can follow the gravitational wave burst (GWB) even if there is no short gamma-ray burst (SGRB) - GWB association or there is an association but the SGRB does not beam towards earth. Besides directly dissipating the proto-magnetar wind as suggested by Zhang, we here suggest that the magnetar wind could push the ejecta launched during the merger process, and under certain conditions, would reach a relativistic speed. Such a magnetar-powered ejecta, when interacting with the ambient medium, would develop a bright broad-band afterglow due to synchrotron radiation. We study this physical scenario in detail, and present the predicted X-ray, optical and radio light curves for a range of magnetar and ejecta parameters. We show that the X-ray and optical lightcurves usually peak around the magnetar spindown time scale (10^3-10^5s), reaching brightness readily detectable by wide-field X-ray and optical telescopes, and remain detectable for an extended period. The radio afterglow peaks later, but is much brighter than the case without a magnetar energy injection. Therefore, such bright broad-band afterglows, if detected and combined with GWBs in the future, would be a probe of massive millisecond magnetars and stiff equation-of-state for nuclear matter.

He Gao; Xuan Ding; Xue-Feng Wu; Bing Zhang; Zi-Gao Dai

2013-01-03T23:59:59.000Z

144

Cell Cycle Regulation of Cyclin-Dependent Kinases in Tobacco Cultivar Bright Yellow-2 Cells1  

E-Print Network [OSTI]

Cell Cycle Regulation of Cyclin-Dependent Kinases in Tobacco Cultivar Bright Yellow-2 Cells1 David different regulation during the cell cycle. CdkA mRNA and protein accumulate during G1 in cells re, although CdkA mRNA and protein levels are not significantly regulated. In contrast, CdkB1 transcripts

Murray, J.A.H.

145

Power Minimization in a Backlit TFT-LCD Display by Concurrent Brightness and Contrast Scaling  

E-Print Network [OSTI]

Brightness and Contrast Scaling (CBCS) technique for a cold cathode fluorescent lamp (CCFL) backlit TFT out that the cold cathode fluorescent lamp (CCFL) backlight of an LCD display dominates the energy be used to characterize the optical power emitted from a spot light source, such as a light bulb

Pedram, Massoud

146

Power Minimization in a Backlit TFT-LCD Display by Concurrent Brightness and Contrast Scaling  

E-Print Network [OSTI]

Brightness and Contrast Scaling (CBCS) technique for a cold cathode fluorescent lamp (CCFL) backlit TFT fluorescent lamp (CCFL) backlight of an LCD display dominates the energy consumption of the whole system [1 be used to characterize the optical power emitted from a spot light source, such as a light bulb

Pedram, Massoud

147

This bright top floor accommodation comprises: -hall with shelved storage cupboard  

E-Print Network [OSTI]

This bright top floor accommodation comprises: - hall with shelved storage cupboard - fully oak flooring in the living/dining room and varnished floorboards in the hall and double bedroom regarded restaurants and a Waitrose supermarket. Recreational facilities can be found at Warrender Swimming

Edinburgh, University of

148

Star Formation and Tidal Encounters with the Low Surface Brightness Galaxy UGC 12695 and Companions  

E-Print Network [OSTI]

Box 53995, Arecibo, PR 00612, email:koneil@naic.edu 2 National Radio Astronomy Observatory, Box 0 where the column density is above this star formation threshold. The low surface brightness nature of this galaxy could thus be attributed to an insu?cient gas surface density, inhibiting star formation on a more

O'Neil, Karen

149

arXiv:astroph/0002191 Star Formation and Tidal Encounters with the Low Surface Brightness Galaxy  

E-Print Network [OSTI]

Observatory, HC03 Box 53995, Arecibo, PR 00612, email:koneil@naic.edu 2 National Radio Astronomy Observatory regions where the column density is above this star formation threshold. The low surface brightness nature of this galaxy could thus be attributed to an insufficient gas surface density, inhibiting star formation

O'Neil, Karen

150

Image contrast enhancement based on local brightness and contouring artifact improvement for large-scale LCD TVs  

Science Journals Connector (OSTI)

Generally, the global histogram equalization of contrast enhancement methods was used in various application fields because of its simple and effective function. But, as it has a disadvantage that the brightness of an image is changed excessively, in ... Keywords: contouring artifacts, false contour, histogram equalization, local brightness, sub-block overlap

Jong-Hee Hwang; Jean K. Song; Yoon-Sik Choe

2010-12-01T23:59:59.000Z

151

Rotation of the trajectories of bright solitons and realignment of intensity distribution in the coupled nonlinear Schrdinger equation  

Science Journals Connector (OSTI)

We reconsider the collisional dynamics of bright solitons in the coupled nonlinear Schrdinger equation. We observe that apart from the intensity redistribution in the interaction of bright solitons, one also witnesses a rotation of the trajectories of bright solitons. The angle of rotation can be varied by suitably manipulating the self-phase-modulation (SPM) or cross-phase-modulation (XPM) parameters. The rotation of the trajectories of the bright solitons arises due to the excess energy that is injected into the dynamical system through SPM or XPM. This extra energy contributes not only to the rotation of the trajectories, but also to the realignment of intensity distribution between the two modes. We also notice that the angular separation between the bright solitons can also be maneuvered suitably. The above results, which exclude quantum superposition for the field vectors, may have wider ramifications in nonlinear optics, Bose-Einstein condensates, and left- and right-handed metamaterials.

R. Radha; P. S. Vinayagam; K. Porsezian

2013-09-03T23:59:59.000Z

152

Line-Strength Indices in Bright Spheroidals: Evidence for a Stellar Population Dichotomy between Spheroidal and Elliptical Galaxies  

E-Print Network [OSTI]

We present new measurements of central line-strength indices (namely Mg2, , and Hbeta and gradients for a sample of 6 bright spheroidal galaxies (Sph's) in the Virgo cluster. Comparison with similar measurements for elliptical galaxies (E's), galactic globular clusters (GGC's), and stellar population models yield the following results: (1) In contrast with bright E's, bright Sph's are consistent with solar abundance [Mg/Fe] ratios; (2) Bright Sph's exhibit metallicities ranging from values typical for metal-rich GGC's to those for E's; (3) Although absolute mean ages are quite model dependent, we find evidence that the stellar populations of some (if not all) Sph's look significantly younger than GGC's; and (4) Mg2 gradients of bright Sph's are significantly shallower than those of E galaxies. We conclude that the dichotomy found in the structural properties of Sph and E galaxies is also observed in their stellar populations. A tentative interpretation in terms of differences in star formation histories is suggested.

J. Gorgas; S. Pedraz; R. Guzman; N. Cardiel; J. J. Gonzalez

1997-03-05T23:59:59.000Z

153

NREL: Technology Transfer - NREL and SkyFuel Partnership Reflects Bright  

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

NREL and SkyFuel Partnership Reflects Bright Future for Solar Energy NREL and SkyFuel Partnership Reflects Bright Future for Solar Energy In this video, NREL Principal Scientist Gary Jorgensen and SkyFuel Chief Technology Officer Randy Gee talk about their partnership to develop a thin film to substitute for bulkier glass mirrors on solar-collecting parabolic troughs. Get the Adobe Flash Player to see this video. Credit: Fireside Production More Information For more information about NREL's partnership with SkyFuel, read Award-Winning Reflector to Cut Solar Cost and New Solar Technology Concentrates on Cost, Efficiency. Learn more about NREL's Concentrating Solar Power Research. Printable Version Technology Transfer Home About Technology Transfer Technology Partnership Agreements Licensing Agreements Nondisclosure Agreements Research Facilities

154

Bright Young Minds for a Clean Energy Future | Department of Energy  

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

Young Minds for a Clean Energy Future Young Minds for a Clean Energy Future Bright Young Minds for a Clean Energy Future August 16, 2011 - 12:11pm Addthis Bright Young Minds for a Clean Energy Future Sarah Jane Maxted Special Assistant, Office of Energy Efficiency & Renewable Energy How can I participate? Registration begins August 15 and ends on October 7, 2011. Students are encouraged to register with their teachers by September 30, 2011 to take advantage of the full energy savings period. It's that time again: Back to school season is officially here! Time for students to prepare for the new experiences and challenges that they will encounter throughout the upcoming school year. One such challenge-from the Energy Department in partnership with the National Science Teachers Association (NSTA)-aims to tap into the

155

Study of microwave/gamma-ray properties for Fermi-LAT bright AGNs  

E-Print Network [OSTI]

Blazars are a small fraction of all extragalactic sources but, unlike other objects, they are strong emitters across the entire electromagnetic spectrum. Recent data in the microwave region of the electromagnetic spectrum have become available to allow for systematic studies of blazars over large cosmological volumes. This frequency band is indeed particularly suited for the selection of blazars since at these frequencies the contamination from radio extended components with steep spectra is no longer present and the emission from the accretion process is negligible. During the first 3 months of scientific operations Fermi-LAT detected 106 bright, high-galactic latitude (| b |> 10 deg) AGNs with high significance. In this study we investigate the possible relations between the microwave and the gamma-ray emissions for Fermi-LAT detected AGNs belonging to WMAP 5th year bright source catalog.

Gasparrini, D; Giommi, P; Pittori, C; Colafrancesco, S

2009-01-01T23:59:59.000Z

156

Volume-scalable high-brightness three-dimensional visible light source  

DOE Patents [OSTI]

A volume-scalable, high-brightness, electrically driven visible light source comprises a three-dimensional photonic crystal (3DPC) comprising one or more direct bandgap semiconductors. The improved light emission performance of the invention is achieved based on the enhancement of radiative emission of light emitters placed inside a 3DPC due to the strong modification of the photonic density-of-states engendered by the 3DPC.

Subramania, Ganapathi; Fischer, Arthur J; Wang, George T; Li, Qiming

2014-02-18T23:59:59.000Z

157

Simultaneous Multi-band Detection of Low Surface Brightness Galaxies with Markovian Modeling  

Science Journals Connector (OSTI)

We present to the astronomical community an algorithm for the detection of low surface brightness (LSB) galaxies in images, called MARSIAA (MARkovian Software for Image Analysis in Astronomy), which is based on multi-scale Markovian modeling. MARSIAA can be applied simultaneously to different bands. It segments an image into a user-defined number of classes, according to their surface brightness and surroundingstypically, one or two classes contain the LSB structures. We have developed an algorithm, called DetectLSB, which allows the efficient identification of LSB galaxies from among the candidate sources selected by MARSIAA. The application of the method to two and three bands simultaneously was tested on simulated images. Based on our tests, we are confident that we can detect LSB galaxies down to a central surface brightness level of only 1.5times the standard deviation from the mean pixel value in the image background. To assess the robustness of our method, the method was applied to a set of 18 B- and I-band images (covering 1.3deg2 in total) of the Virgo Cluster to which Sabatini et al. previously applied a matched-filter dwarf LSB galaxy search algorithm. We have detected all 20 objects from the Sabatini et al. catalog which we could classify by eye as bona fide LSB galaxies. Our method has also detected four additional Virgo Cluster LSB galaxy candidates undetected by Sabatini et al. To further assess the completeness of the results of our method, both MARSIAA, SExtractor, and DetectLSB were applied to search for (1) mock Virgo LSB galaxies inserted into a set of deep Next Generation Virgo Survey (NGVS) gri-band subimages and (2) Virgo LSB galaxies identified by eye in a full set of NGVS square degree gri images. MARSIAA/DetectLSB recovered ~20% more mock LSB galaxies and ~40% more LSB galaxies identified by eye than SExtractor/DetectLSB. With a 90% fraction of false positives from an entirely unsupervised pipeline, a completeness of 90% is reached for sources with r e > 3'' at a mean surface brightness level of ?g = 27.7magarcsec2 and a central surface brightness of ?0 g = 26.7magarcsec2. About 10% of the false positives are artifacts, the rest being background galaxies. We have found our proposed Markovian LSB galaxy detection method to be complementary to the application of matched filters and an optimized use of SExtractor, and to have the following advantages: it is scale free, can be applied simultaneously to several bands, and is well adapted for crowded regions on the sky.

B. Vollmer; B. Perret; M. Petremand; F. Lavigne; Ch. Collet; W. van Driel; F. Bonnarel; M. Louys; S. Sabatini; L. A. MacArthur

2013-01-01T23:59:59.000Z

158

Relationships between Tropical Cyclone Intensity and Eyewall Structure as Determined by Radial Profiles of Inner-Core Infrared Brightness Temperature  

Science Journals Connector (OSTI)

Radial profiles of infrared brightness temperature for 2405 different satellite observations from 14 western North Pacific tropical cyclones (TCs) from the 2012 season were analyzed and compared to intensity and changes in intensity. Four critical ...

Elizabeth R. Sanabia; Bradford S. Barrett; Caitlin M. Fine

2014-12-01T23:59:59.000Z

159

Deep imaging of Q2112+059: A bright host galaxy but no DLA absorber  

E-Print Network [OSTI]

In a ongoing programme aimed at studying galaxy counterparts of Damped Ly-alpha Absorbers (DLAs) we have obtained high resolution deep I-band imaging data of the field around the z_em = 0.457 BAL QSO Q2112+059. In the literature this QSO is listed to have a candidate DLA at z_abs = 0.2039 along the line of sight. After subtraction of the QSO Point Spread Function (PSF) we detect a galaxy centred on the position of Q2112+059. To help answer whether this galaxy is the DLA or the QSO host galaxy we retrieved a GHRS spectrum of Q2112+059 from the HST-archive. This spectrum shows that there is no Ly-alpha absorption line at z_abs = 0.2039. This fact in combination with the perfect alignment on the sky of the galaxy and Q2112+059 lead us to the conclusion that the galaxy must be the host galaxy of Q2112+059. The host galaxy of Q2112+059 is bright (M_I^obs = -23.6), and has a radial profile well fitted by a {\\it modified Hubble + de Vaucouleurs} profile with R_c = 0.5 kpc and R_e = 3.6 kpc. Our results are well in line with the conclusion of earlier work done at lower redshifts, that bright low redshift QSOs preferentially reside in luminous, elliptical galaxies. The host of Q2112+059 is however, despite it's brightness, very compact when compared to early type galaxies at lower redshifts.

J. U. Fynbo; P. Moller; B. Thomsen

2001-01-04T23:59:59.000Z

160

Resilience of gated avalanche photodiodes against bright illumination attacks in quantum cryptography  

E-Print Network [OSTI]

Semiconductor avalanche photodiodes (APDs) are commonly used for single photon detection in quantum key distribution. Recently, many attacks using bright illumination have been proposed to manipulate gated InGaAs APDs. In order to devise effective counter-measures, careful analysis of these attacks must be carried out to distinguish between incorrect operation and genuine loopholes. Here, we show that correctly-operated, gated APDs are immune to continuous-wave illumination attacks, while monitoring the photocurrent for anomalously high values is a straightforward counter-measure against attacks using temporally tailored light.

Z. L. Yuan; J. F. Dynes; A. J. Shields

2011-06-14T23:59:59.000Z

Note: This page contains sample records for the topic "all-stars shine bright" 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

Near-Field Analysis of Bright and Dark Modes on Plasmonic Metasurfaces Showing Extraordinary Suppressed Transmission  

E-Print Network [OSTI]

Plasmonic metasurfaces are investigated that consist of a sub wavelength line pattern in an ultrathin (~ 10 nm) silver film, designed for extraordinarily suppressed transmission (EOST) in the visible spectral range. Measurements with a near-field scanning optical microscope (NSOM) demonstrate that far field irradiation creates resonant excitations of antenna like (bright) modes that are localized on the metal ridges. In contrast, bound (dark) surface plasmon polaritons (SPPs) launched from an NSOM tip propagate well across the metasurface, preferentially perpendicular to the grating lines.

Dobmann, Sabine; Ploss, Daniel; Peschel, Ulf

2014-01-01T23:59:59.000Z

162

Simultaneous multi-band detection of Low Surface Brightness galaxies with Markovian modelling  

E-Print Network [OSTI]

We present an algorithm for the detection of Low Surface Brightness (LSB) galaxies in images, called MARSIAA (MARkovian Software for Image Analysis in Astronomy), which is based on multi-scale Markovian modeling. MARSIAA can be applied simultaneously to different bands. It segments an image into a user-defined number of classes, according to their surface brightness and surroundings - typically, one or two classes contain the LSB structures. We have developed an algorithm, called DetectLSB, which allows the efficient identification of LSB galaxies from among the candidate sources selected by MARSIAA. To assess the robustness of our method, the method was applied to a set of 18 B and I band images (covering 1.3 square degrees in total) of the Virgo cluster. To further assess the completeness of the results of our method, both MARSIAA, SExtractor, and DetectLSB were applied to search for (i) mock Virgo LSB galaxies inserted into a set of deep Next Generation Virgo Survey (NGVS) gri-band subimages and (ii) Virgo...

Vollmer, B; Petremand, M; Lavigne, F; Collet, Ch; van Driel, W; Bonnarel, F; Louys, M; Sabatini, S; MacArthur, L A

2012-01-01T23:59:59.000Z

163

A serendipitous all sky survey for bright objects in the outer solar system  

E-Print Network [OSTI]

We use seven year's worth of observations from the Catalina Sky Survey and the Siding Spring Survey covering most of the northern and southern hemisphere at galactic latitudes higher than 20 degrees to search for serendipitously imaged moving objects in the outer solar system. These slowly moving objects would appear as stationary transients in these fast cadence asteroids surveys, so we develop methods to discover objects in the outer solar system using individual observations spaced by months, rather than spaced by hours, as is typically done. While we independently discover 8 known bright objects in the outer solar system, the faintest having $V=19.8\\pm0.1$, no new objects are discovered. We find that the survey is nearly 100% efficient at detecting objects beyond 25 AU for $V\\lesssim 19.1$ ($V\\lesssim18.6$ in the southern hemisphere) and that the probability that there is one or more remaining outer solar system object of this brightness left to be discovered in the unsurveyed regions of the galactic plan...

Brown, M E; Schmidt, B P; Drake, A J; Djorgovski, S G; Graham, M J; Mahabal, A; Donalek, C; Larson, S; Christensen, E; Beshore, E; McNaught, R

2015-01-01T23:59:59.000Z

164

The Dark Bursts population in a complete sample of bright Swift Long Gamma-Ray Bursts  

E-Print Network [OSTI]

We study the properties of the population of optically dark events present in a carefully selected complete sample of bright Swift long gamma-ray bursts. The high level of completeness in redshift of our sample (52 objects out of 58) allow us to establish the existence of a genuine dark population and we are able to estimate the maximum fraction of dark burst events (~30%) expected for the whole class of long gamma-ray burst. The redshift distribution of this population of dark bursts is similar to the one of the whole sample. Interestingly, the rest-frame X-ray luminosity (and the de-absorbed X-ray flux) of the sub-class of dark bursts is slightly higher than the average luminosity of the non-dark events. At the same time the prompt properties do not differ and the optical flux of dark events is at the lower tail of the optical flux distribution, corrected for Galactic absorption. All these properties suggest that dark bursts events generate in much denser environments with respect to normal bright events. We can therefore exclude the high-z and the low-density scenarios and conclude that the major cause of the origin of optically dark events is the dust extinction.

A. Melandri; B. Sbarufatti; P. D'Avanzo; R. Salvaterra; S. Campana; S. Covino; S. D. Vergani; L. Nava; G. Ghisellini; G. Ghirlanda; D. Fugazza; V. Mangano; M. Capalbi; G. Tagliaferri

2012-02-14T23:59:59.000Z

165

THREE-DIMENSIONAL STRUCTURE AND EVOLUTION OF EXTREME-ULTRAVIOLET BRIGHT POINTS OBSERVED BY STEREO/SECCHI/EUVI  

SciTech Connect (OSTI)

We unveil the three-dimensional structure of quiet-Sun EUV bright points and their temporal evolution by applying a triangulation method to time series of images taken by SECCHI/EUVI on board the STEREO twin spacecraft. For this study we examine the heights and lengths as the components of the three-dimensional structure of EUV bright points and their temporal evolutions. Among them we present three bright points which show three distinct changes in the height and length: decreasing, increasing, and steady. We show that the three distinct changes are consistent with the motions (converging, diverging, and shearing, respectively) of their photospheric magnetic flux concentrations. Both growth and shrinkage of the magnetic fluxes occur during their lifetimes and they are dominant in the initial and later phases, respectively. They are all multi-temperature loop systems which have hot loops ({approx}10{sup 6.2} K) overlying cooler ones ({approx}10{sup 6.0} K) with cool legs ({approx}10{sup 4.9} K) during their whole evolutionary histories. Our results imply that the multi-thermal loop system is a general character of EUV bright points. We conclude that EUV bright points are flaring loops formed by magnetic reconnection and their geometry may represent the reconnected magnetic field lines rather than the separator field lines.

Kwon, Ryun-Young; Poomvises, Watanachak [Department of Physics, Institute for Astrophysics and Computational Sciences, Catholic University of America, 620 Michigan Avenue, Washington, DC 20064 (United States); Chae, Jongchul [Astronomy Program, Department of Physics and Astronomy, Seoul National University, Seoul (Korea, Republic of); Davila, Joseph M.; Jones, Shaela I. [NASA Goddard Space Flight Center, Solar Physics Laboratory, Code 671, Greenbelt, MD 20771 (United States); Zhang Jie [School of Physics, Astronomy and Computational Sciences, George Mason University, Fairfax, VA 22030 (United States); Moon, Yong-Jae, E-mail: ryunyoung.kwon@nasa.gov [School of Space Research, Kyung Hee University, Yongin 446-701 (Korea, Republic of)

2012-10-01T23:59:59.000Z

166

New Family of Tiny Crystals Glow Bright in LED Lights | Advanced Photon  

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

How Serotonin Receptors Can Shape Drug Effects, from LSD to Migraine How Serotonin Receptors Can Shape Drug Effects, from LSD to Migraine Medication X-rays Paint a Picture of Picasso's Pigments Antibody Evolution Could Guide HIV Vaccine Development Blue Ruthenium Dimer Catalysis for Hydrogen Generation A High-Pressure Nano-imaging Breakthrough Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed New Family of Tiny Crystals Glow Bright in LED Lights JUNE 7, 2013 Bookmark and Share Laue microdiffraction pattern acquired from a nanoribbon in experiments at the APS. Minuscule crystals that glow different colors may be the missing ingredient for white light-emitting diode (LED) lighting that illuminates homes and

167

Two X-Ray Bright Cataclysmic Variables with Unusual Activities: GZ Cnc and NSV 10934  

E-Print Network [OSTI]

We report on a discovery of unexpected activities in two X-ray bright dwarf novae. GZ Cnc showed an anomalous clustering of outbursts in 2002, in contrast to a low outburst frequency in the past record. The activity resembles an increased activity seen in some intermediate polars or candidates. We identified NSV 10934, X-ray selected high-amplitude variable star, as a dwarf nova with unusually rapid decline. The outburst characteristics make NSV 10934 a twin of recently discovered intermediate polar (HT Cam) with dwarf nova-type outbursts. We propose that these activities in X-ray strong dwarf novae may be a previously overlooked manifestation of outburst activities in magnetic cataclysmic variables.

T. Kato; P. A. Dubovsky; R. Stubbings; M. Simonsen; H. Yamaoka; P. Nelson; B. Monard; A. Pearce; G. Garradd

2002-10-01T23:59:59.000Z

168

Bright and fast voltage reporters across the visible spectrum via electrochromic FRET (eFRET)  

E-Print Network [OSTI]

We present a palette of brightly fluorescent genetically encoded voltage indicators (GEVIs) with excitation and emission peaks spanning the visible spectrum, sensitivities from 6 - 10% Delta F/F per 100 mV, and half-maximal response times from 1 - 7 ms. A fluorescent protein is fused to an Archaerhodopsin-derived voltage sensor. Voltage-induced shifts in the absorption spectrum of the rhodopsin lead to voltage-dependent nonradiative quenching of the appended fluorescent protein. Through a library screen, we identified linkers and fluorescent protein combinations which reported neuronal action potentials in cultured rat hippocampal neurons with a single-trial signal-to-noise ratio from 6.6 to 11.6 in a 1 kHz imaging bandwidth at modest illumination intensity. The freedom to choose a voltage indicator from an array of colors facilitates multicolor voltage imaging, as well as combination with other optical reporters and optogenetic actuators.

Zou, Peng; Douglass, Adam D; Hochbaum, Daniel R; Brinks, Daan; Werley, Christopher A; Harrison, D Jed; Campbell, Robert E; Cohen, Adam E

2014-01-01T23:59:59.000Z

169

High brightness--multiple beamlets source for patterned X-ray production  

DOE Patents [OSTI]

Techniques for controllably directing beamlets to a target substrate are disclosed. The beamlets may be either positive ions or electrons. It has been shown that beamlets may be produced with a diameter of 1 .mu.m, with inter-aperture spacings of 12 .mu.m. An array of such beamlets, may be used for maskless lithography. By step-wise movement of the beamlets relative to the target substrate, individual devices may be directly e-beam written. Ion beams may be directly written as well. Due to the high brightness of the beamlets from extraction from a multicusp source, exposure times for lithographic exposure are thought to be minimized. Alternatively, the beamlets may be electrons striking a high Z material for X-ray production, thereafter collimated to provide patterned X-ray exposures such as those used in CAT scans. Such a device may be used for remote detection of explosives.

Leung, Ka-Ngo (Hercules, CA); Ji, Qing (Albany, CA); Barletta, William A. (Oakland, CA); Jiang, Ximan (El Cerrito, CA); Ji, Lili (Albany, CA)

2009-10-27T23:59:59.000Z

170

Comparison of solar photospheric bright points between SUNRISE observations and MHD simulations  

E-Print Network [OSTI]

Bright points (BPs) in the solar photosphere are radiative signatures of magnetic elements described by slender flux tubes located in the darker intergranular lanes. They contribute to the ultraviolet (UV) flux variations over the solar cycle and hence may influence the Earth's climate. Here we combine high-resolution UV and spectro-polarimetric observations of BPs by the SUNRISE observatory with 3D radiation MHD simulations. Full spectral line syntheses are performed with the MHD data and a careful degradation is applied to take into account all relevant instrumental effects of the observations. It is demonstrated that the MHD simulations reproduce the measured distributions of intensity at multiple wavelengths, line-of-sight velocity, spectral line width, and polarization degree rather well. Furthermore, the properties of observed BPs are compared with synthetic ones. These match also relatively well, except that the observations display a tail of large and strongly polarized BPs not found in the simulation...

Riethmller, T L; Berdyugina, S V; Schssler, M; Pillet, V Mart\\'\\inez; Feller, A; Gandorfer, A; Hirzberger, J

2014-01-01T23:59:59.000Z

171

Discovery of A Very Bright, Strongly-Lensed z=2 Galaxy in the SDSS DR5  

SciTech Connect (OSTI)

We report on the discovery of a very bright z = 2.00 star-forming galaxy that is strongly lensed by a foreground z = 0.422 luminous red galaxy (LRG). This system was found in a systematic search for bright arcs lensed by LRGs and brightest cluster galaxies in the Sloan Digital Sky Survey Data Release 5 sample. Follow-up observations on the Subaru 8.2m telescope on Mauna Kea and the Astrophysical Research Consortium 3.5m telescope at Apache Point Observatory confirmed the lensing nature of this system. A simple lens model for the system, assuming a singular isothermal ellipsoid mass distribution, yields an Einstein radius of {theta}{sub Ein} = 3.82 {+-} 0.03{double_prime} or 14.8 {+-} 0.1h{sup -1} kpc at the lens redshift. The total projected mass enclosed within the Einstein radius is 2.10 {+-} 0.03 x 10{sup 12}h{sup -1}M{sub {circle_dot}}, and the magnification factor for the source galaxy is 27 {+-} 1. Combining the lens model with our gVriz photometry, we find an (unlensed) star formation rate for the source galaxy of 32 h{sup -1} M{sub {circle_dot}} hr{sup -1}, adopting a fiducial constant star formation rate model with an age of 100 Myr and E(B-V) = 0.25. With an apparent magnitude of r = 19.9, this system is among the very brightest lensed z {ge} 2 galaxies, and provides an excellent opportunity to pursue detailed studies of the physical properties of an individual high-redshift star-forming galaxy.

Lin, Huan; Buckley-Geer, Elizabeth; /Fermilab; Allam, Sahar S.; /Fermilab /Wyoming U.; Tucker, Douglas L.; Diehl, H.Thomas; Kubik, Donna; Kubo, Jeffrey M.; Annis, James; /Fermilab; Frieman, Joshua A.; /Chicago U., Astron. Astrophys. Ctr. /Fermilab /KICP, Chicago; Oguri, Masamune; /KIPAC, Menlo Park; Inada, Naohisa; /Wako, RIKEN

2008-09-30T23:59:59.000Z

172

Automated local bright feature image analysis of nuclear proteindistribution identifies changes in tissue phenotype  

SciTech Connect (OSTI)

The organization of nuclear proteins is linked to cell and tissue phenotypes. When cells arrest proliferation, undergo apoptosis, or differentiate, the distribution of nuclear proteins changes. Conversely, forced alteration of the distribution of nuclear proteins modifies cell phenotype. Immunostaining and fluorescence microscopy have been critical for such findings. However, there is an increasing need for quantitative analysis of nuclear protein distribution to decipher epigenetic relationships between nuclear structure and cell phenotype, and to unravel the mechanisms linking nuclear structure and function. We have developed imaging methods to quantify the distribution of fluorescently-stained nuclear protein NuMA in different mammary phenotypes obtained using three-dimensional cell culture. Automated image segmentation of DAPI-stained nuclei was generated to isolate thousands of nuclei from three-dimensional confocal images. Prominent features of fluorescently-stained NuMA were detected using a novel local bright feature analysis technique, and their normalized spatial density calculated as a function of the distance from the nuclear perimeter to its center. The results revealed marked changes in the distribution of the density of NuMA bright features as non-neoplastic cells underwent phenotypically normal acinar morphogenesis. In contrast, we did not detect any reorganization of NuMA during the formation of tumor nodules by malignant cells. Importantly, the analysis also discriminated proliferating non-neoplastic cells from proliferating malignant cells, suggesting that these imaging methods are capable of identifying alterations linked not only to the proliferation status but also to the malignant character of cells. We believe that this quantitative analysis will have additional applications for classifying normal and pathological tissues.

Knowles, David; Sudar, Damir; Bator, Carol; Bissell, Mina

2006-02-01T23:59:59.000Z

173

4-H All-Star Constitution (Revised 3-22-14)  

E-Print Network [OSTI]

be associated with the 4-H Program of Virginia Cooperative Extension of Virginia individual and cooperative efforts. ARTICLE III - Membership The membership-economic condition, disability, or political affiliation. ARTICLE IV - Officers and Election

Liskiewicz, Maciej

174

Ab Initio Geometry and Bright Excitation of Carotenoids: Quantum Monte Carlo and Many Body Green's Function Theory Calculations  

E-Print Network [OSTI]

Ab Initio Geometry and Bright Excitation of Carotenoids: Quantum Monte Carlo and Many Body Green state. Many Body Green's Function Theory (MBGFT) calculations of the vertical excitation energy and coupling with Qy of the chlorophyll.8-13 Measurements in several solvents have been reported

Guidoni, Leonardo

175

An Atlas of H-alpha and R Images and Radial Profiles of 29 Bright Isolated Spiral Galaxies  

E-Print Network [OSTI]

Narrow-band H-alpha+[NII] and broadband R images and surface photometry are presented for a sample of 29 bright (M_B < -18) isolated S0-Scd galaxies within a distance of 48 Mpc. These galaxies are among the most isolated nearby spiral galaxies of their Hubble classifications as determined from the Nearby Galaxies Catalog (Tully 1987a).

R. A. Koopmann; J. D. P. Kenney

2005-11-22T23:59:59.000Z

176

Oregon's Rocky Shore Species: Anemones Giant Green Anemones get their bright coloration from symbiotic, single-celled  

E-Print Network [OSTI]

(right) and grow flat. Photos: Laurel Hillmann #12;Oregon's Rocky Shore Species: Molluscs & ArthropodsOregon's Rocky Shore Species: Anemones Giant Green Anemones get their bright coloration from;Oregon's Rocky Shore Species: Sea Stars Rocky shores are home to a diverse group of species including

Wright, Dawn Jeannine

177

A close-up of the Sun (shown in ultraviolet light) reveals a mottled surface, bright flares,  

E-Print Network [OSTI]

#12;#12;A close-up of the Sun (shown in ultraviolet light) reveals a mottled surface, bright flares, and tongues of hot gas leaping into space. Though they look like burns in the face of the Sun, sunspots circle in the center of the photo--allows scientists to see the solar wind streaming away from the Sun

Christian, Eric

178

TRIGGERED STAR FORMATION IN A BRIGHT-RIMMED CLOUD (BRC 5) OF IC 1805  

SciTech Connect (OSTI)

We report recent optical, near-infrared (NIR), and millimeter observations which have revealed some new features of the bright-rimmed cloud BRC 5 associated with W4. With slitless spectroscopy, we detected 17 H{alpha} emission stars around the cloud; 4 are near the surface of the cloud, and 1 is toward IRAS 02252+6120. NIR photometry shows that the central H{alpha} emission star, together with one bright infrared source, has large NIR excesses and Class I spectral energy distributions. These two Class I objects are associated with the 2.9 mm continuum peaks and with a bipolar outflow, and are in between two separate, elongated C{sup 18}O(J = 1-0) cores. The C{sup 18}O cores and the two Class I sources are aligned along a line at position angle {approx}240 Degree-Sign , somewhat less than perpendicular to the direction of UV radiation from the OB stars. Most of the detected H{alpha} emission stars, all T Tauri candidates, are located within {approx}3' of the cloud on the exciting star side. An estimate of the age of the stars based on a color-magnitude diagram suggests that these T Tauri candidates have ages of {approx}1 Myr or less, but are more evolved objects than the central young stellar objects. This age sequence suggests sequential star formation within the BRC 5 cloud. The {sup 13}CO(J = 1-0) emission shows three elongated structures, which indicates the asymmetric structure toward the UV incident axis. We present our exploratory simulation results by using a smoothed particle hydrodynamic code that suggests that the asymmetrical BRC 5 structure could possibly result from the evolution of a preexisting prolate molecular cloud subject to radiation-driven implosion (RDI). Our best-fit prolate cloud has an initial mass of {approx}400 M{sub Sun }, an axial ratio of {approx}1.7, and a semi-major axis of {approx}1.6 pc, pointing away from the ionization flux by an angle of 15 Degree-Sign . The simulated cloud structure not only closely matches the observed asymmetric morphological structure of BRC 5, but also reveals the possibility of the development of two major cores at the head of BRC 5. For the first time, the possibility of forming two stars by an RDI mechanism in a BRC is investigated.

Fukuda, Naoya [Faculty of Biosphere-Geosphere Science, Okayama University of Science, 1-1 Ridai-chou, Okayama 700-0005 (Japan); Miao, Jingqi [Centre for Astrophysics and Planetary Science, School of Physical Sciences, University of Kent, Canterbury, Kent CT2 7NR (United Kingdom); Sugitani, Koji [Graduate School of Natural Sciences, Nagoya City University, Mizuho-ku, Nagoya 467-8501 (Japan); Kawahara, Kentaro [Faculty of Informatics, Okayama University of Science, 1-1 Ridai-chou, Okayama 700-0005 (Japan); Watanabe, Makoto [Department of Cosmosciences, Hokkaido University, Kita 10, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810 (Japan); Nakano, Makoto [Faculty of Education and Welfare Science, Oita University, Oita 870-1192 (Japan); Pickles, Andrew J., E-mail: fukudany@big.ous.ac.jp [Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Goleta, CA 93117 (United States)

2013-08-20T23:59:59.000Z

179

Generation of continuouswave bright squeezed light S. Schiller, G. Breitenbach, S. F. Pereira, R. Paschotta, A. G. White, and J. Mlynek  

E-Print Network [OSTI]

Generation of continuous­wave bright squeezed light S. Schiller, G. Breitenbach, S. F. Pereira, R approaches to the generation of bright amplitude­squeezed light using second­order non­ linear effects in optical cavities. A 0.2 mW beam at 1064 nm exhibiting 4 dB squeezing has been generated using a phase

White, Andrew G.

180

ADVANCED X-BAND TEST ACCELERATOR FOR HIGH BRIGHTNESS ELECTRON AND GAMMA RAY BEAMS  

SciTech Connect (OSTI)

In support of Compton scattering gamma-ray source efforts at LLNL, a multi-bunch test stand is being developed to investigate accelerator optimization for future upgrades. This test stand will enable work to explore the science and technology paths required to boost the current 10 Hz monoenergetic gamma-ray (MEGa-Ray) technology to an effective repetition rate exceeding 1 kHz, potentially increasing the average gamma-ray brightness by two orders of magnitude. Multiple bunches must be of exceedingly high quality to produce narrow-bandwidth gamma-rays. Modeling efforts will be presented, along with plans for a multi-bunch test stand at LLNL. The test stand will consist of a 5.5 cell X-band rf photoinjector, single accelerator section, and beam diagnostics. The photoinjector will be a high gradient standing wave structure, featuring a dual feed racetrack coupler. The accelerator will increase the electron energy so that the emittance can be measured using quadrupole scanning techniques. Multi-bunch diagnostics will be developed so that the beam quality can be measured and compared with theory. Design will be presented with modeling simulations, and layout plans.

Marsh, R A; Anderson, S G; Barty, C P; Chu, T S; Ebbers, C A; Gibson, D J; Hartemann, F V; Adolphsen, C; Jongewaard, E N; Raubenheimer, T; Tantawi, S G; Vlieks, A E; Wang, J W

2010-05-12T23:59:59.000Z

Note: This page contains sample records for the topic "all-stars shine bright" from the National Library of EnergyBeta (NLEBeta).
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181

Application of the Eigen-Emittance Concept to Design Ultra-Bright Electron Beams  

SciTech Connect (OSTI)

Using correlations at the cathode to tailor a beam's eigen-emittances is a recent concept made useful by the symplectic nature of Hamiltonian systems such as beams in accelerators. While introducing correlations does not change the overall 6-dimensional phase space volume, it can change the partitioning of this volume into the longitudinal and two transverse emittances, which become these eigen-emittances if all the initial correlations are unwound and removed. In principle, this technique can be used to generate beams with highly asymmetric emittances, such as those needed for the next generation of very hard X-ray free-electron lasers. This approach is based on linear correlations, and its applicability will be limited by the magnitude of nonlinear effects in photoinjectors which will lead to mixing in phase space that cannot be unwound downstream. Here, we review the eigen-emittance concept and present a linear eigen-emittance design leading to a highly partitioned, and transverse ultra-bright, electron beam. We also present numerical tools to examine the evolution of the eigen-emittances in realistic accelerator structures and results indicating how much partitioning is practical.

Duffy, Leanne D. [Los Alamos National Laboratory; Bishofberger, Kip A. [Los Alamos National Laboratory; Carlsten, Bruce E. [Los Alamos National Laboratory; Dragt, Alex [U. Maryland; Russell, Steven J. [Los Alamos National Laboratory; Ryne, Robert D. [LBNL; Yampolsky, Nikolai A. [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

182

IDENTIFYING BREAKS AND CURVATURE IN THE FERMI SPECTRA OF BRIGHT FLAT SPECTRUM RADIO QUASARS  

SciTech Connect (OSTI)

Knowing the site of {gamma}-ray emission in active galactic nucleus jets will do much for our understanding of the physics of the source. In particular, if the emission region is close to the black hole then absorption of {gamma}-rays with photons from the broad-line region could become significant. Such absorption is predicted to produce two specific spectral breaks in the {gamma}-ray spectra of Flat Spectrum Radio Quasars (FSRQs). We test this hypothesis using three years of Fermi observations of nine bright FSRQs. A simple power-law fit to the spectrum of each source can be significantly improved by introducing a break, but the break energies are inconsistent with those predicted by the double-absorber model. In some cases the fit can be further improved by a log-parabola. In addition, by dividing the data from each source into two equal epochs we find that the best description of an object's spectrum often varies between a log-parabola and a broken power law.

Harris, J.; Daniel, M. K.; Chadwick, P. M., E-mail: j.d.harris@durham.ac.uk [Department of Physics, Durham University, South Road, Durham DH1 3LE (United Kingdom)

2012-12-10T23:59:59.000Z

183

Preparation of brightness stabilization agent for lignin containing pulp from biomass pyrolysis oils  

DOE Patents [OSTI]

A process for producing a brightness stabilization mixture of water-soluble organic compounds from biomass pyrolysis oils comprising: a) size-reducing biomass material and pyrolyzing the size-reduced biomass material in a fluidized bed reactor; b) separating a char/ash component while maintaining char-pot temperatures to avoid condensation of pyrolysis vapors; c) condensing pyrolysis gases and vapors, and recovering pyrolysis oils by mixing the oils with acetone to obtain an oil-acetone mixture; d) evaporating acetone and recovering pyrolysis oils; e) extracting the pyrolysis oils with water to obtain a water extract; f) slurrying the water extract with carbon while stirring, and filtering the slurry to obtain a colorless filtrate; g) cooling the solution and stabilizing the solution against thermally-induced gelling and solidification by extraction with ethyl acetate to form an aqueous phase lower layer and an organic phase upper layer; h) discarding the upper organic layer and extracting the aqueous layer with ethyl acetate, and discarding the ethyl acetate fraction to obtain a brown-colored solution not susceptible to gelling or solidification upon heating; i) heating the solution to distill off water and other light components and concentrating a bottoms fraction comprising hydroxyacetaldehyde and other non-volatile components having high boiling points; and j) decolorizing the stabilized brown solution with activated carbon to obtain a colorless solution.

Agblevor, Foster A. (Blacksburg, VA); Besler-Guran, Serpil (Flemington, NJ)

2001-01-01T23:59:59.000Z

184

STUDIES OF THE Be STAR X PERSEI DURING A BRIGHT INFRARED PHASE  

SciTech Connect (OSTI)

We present multi-epoch photometric and spectroscopic near-infrared observations of the Be star X Persei in the JHK bands covering the wavelength range 1.08-2.35 {mu}m. Combining results from our earlier studies with the present observations, it is shown that the equivalent widths and line fluxes of the prominent H I and He I lines anti-correlate with the strength of the adjacent continuum. That is, during the span of the observations, the JHK broadband fluxes increase while the emission equivalent width values of the H I and He I lines decrease (the lines under consideration being the Paschen and Brackett lines of hydrogen and the 1.7002 {mu}m and 2.058 {mu}m lines of helium). Such an anti-correlation effect is not commonly observed in Be stars in the optical; in the infrared, this may possibly be the first reported case of such behavior. We examine different mechanisms that could possibly cause it and suggest that it could originate due to a radiatively warped, precessing circumstellar disk. It is also shown that during the course of our studies, X Per evolved to an unprecedented state of high near-IR brightness with J, H, K magnitudes of 5.20, 5.05, and 4.84, respectively.

Mathew, Blesson; Banerjee, D. P. K.; Naik, Sachindra; Ashok, N. M., E-mail: blessonmathew@gmail.com [Astronomy and Astrophysics Division, Physical Research Laboratory, Navrangapura, Ahmedabad 380 009, Gujarat (India)

2013-06-15T23:59:59.000Z

185

V and I Photometry of Bright Giants in the Central Regions of NGC 147  

E-Print Network [OSTI]

Deep V and I CCD images with sub-arcsec spatial resolution are used to investigate the stellar content of the central regions of the Local Group dwarf elliptical galaxy NGC147. Red giant branch (RGB) stars are resolved over the entire field, and the RGB-tip occurs at I ~ 20.5, suggesting that the distance modulus is 24.3. A comparison with globular cluster sequences indicates that the center of NGC147 is moderately metal-poor, with [Fe/H] ~ -1. This is not significantly different from what was found in the outer regions of the galaxy by Mould, Kristian & Da Costa (1983, ApJ, 270, 471). Moreover, the width of the V-I color distribution at I = 21.0 indicates that a spread in metallicity is present, with sigma[Fe/H] ~ +/- 0.3. There is no evidence of a component more metal-poor than [Fe/H] ~ -1.3. A small population of moderately bright asymptotic giant branch (AGB) stars has also been detected, and the AGB-tip occurs near M{bol} ~ -5.0, indicating that an intermediate-age population is present. It is estimated that the intermediate-age population contributes ~ 2-3% of the V light from NGC147.

T. J. Davidge

1994-10-13T23:59:59.000Z

186

Active Detection and Imaging of Nuclear Materials with High-Brightness Gamma Rays  

SciTech Connect (OSTI)

A Compton scattering {gamma}-ray source, capable of producing photons with energies ranging from 0.1 MeV to 0.9 MeV has been commissioned and characterized, and then used to perform nuclear resonance fluorescence (NRF) experiments. The performances of the two laser systems (one for electron production, one for scattering), the electron photoinjector, and the linear accelerator are also detailed, and {gamma}-ray results are presented. The key source parameters are the size (0.01 mm{sup 2}), horizontal and vertical divergence (6 x 10 mrad{sup 2}), duration (10 ps), spectrum and intensity (10{sup 5} photons/shot). These parameters are summarized by the peak brightness, 1.5 x 10{sup 15} photons/mm{sup 2}/mrad{sup 2}/s/0.1% bandwidth, measured at 478 keV. Additional measurements of the flux as a function of the timing difference between the drive laser pulse and the relativistic photo-electron bunch, {gamma}-ray beam profile, and background evaluations are presented. These results are systematically compared to theoretical models and computer simulations. NRF measurements performed on {sup 7}Li in LiH demonstrate the potential of Compton scattering photon sources to accurately detect isotopes in situ.

Barty, C J; Gibson, D J; Albert, F; Anderson, S G; Anderson, G G; Betts, S M; Berry, R D; Fisher, S E; Hagmann, C A; Johnson, M S; Messerly, M J; Phan, H H; Semenov, V A; Shverdin, M Y; Tremaine, A M; Hartemann, F V; Siders, C W; McNabb, D P

2009-02-26T23:59:59.000Z

187

Advanced X-Band Test Accelerator for High Brightness Electron and Gamma Ray Beams  

SciTech Connect (OSTI)

In support of Compton scattering gamma-ray source efforts at LLNL, a multi-bunch test stand is being developed to investigate accelerator optimization for future upgrades. This test stand will enable work to explore the science and technology paths required to boost the current 10 Hz monoenergetic gamma-ray (MEGa-Ray) technology to an effective repetition rate exceeding 1 kHz, potentially increasing the average gamma-ray brightness by two orders of magnitude. Multiple bunches must be of exceedingly high quality to produce narrow-bandwidth gamma-rays. Modeling efforts will be presented, along with plans for a multi-bunch test stand at LLNL. The test stand will consist of a 5.5 cell X-band rf photoinjector, single accelerator section, and beam diagnostics. The photoinjector will be a high gradient standing wave structure, featuring a dual feed racetrack coupler. The accelerator will increase the electron energy so that the emittance can be measured using quadrupole scanning techniques. Multi-bunch diagnostics will be developed so that the beam quality can be measured and compared with theory. Design will be presented with modeling simulations, and layout plans.

Marsh, Roark; /LLNL, Livermore; Anderson, Scott; /LLNL, Livermore; Barty, Christopher; /LLNL, Livermore; Chu, Tak Sum; /LLNL, Livermore; Ebbers, Chris; /LLNL, Livermore; Gibson, David; /LLNL, Livermore; Hartemann, Fred; /LLNL, Livermore; Adolphsen, Chris; /SLAC; Jongewaard, Erik; /SLAC; Raubenheimer, Tor; /SLAC; Tantawi, Sami; /SLAC; Vlieks, Arnold; /SLAC; Wang, Juwen; /SLAC

2012-07-03T23:59:59.000Z

188

DETECTION OF AN ULTRA-BRIGHT SUBMILLIMETER GALAXY BEHIND THE SMALL MAGELLANIC CLOUD  

SciTech Connect (OSTI)

We report the discovery of a new ultra-bright submillimeter galaxy (SMG) behind the Small Magellanic Cloud (SMC). This SMG is detected as a 43.3 {+-} 8.4 mJy point source (MM J01071-7302, hereafter MMJ0107) in the 1.1 mm continuum survey of the SMC by AzTEC on the ASTE telescope. MMJ0107 is also detected in the radio (843 MHz), Herschel/SPIRE, Spitzer MIPS 24 {mu}m, all IRAC bands, Wide-field Infrared Survey Explorer, and near-infrared (J, H, K{sub S} ). We find an optical (U, B, V) source, which might be the lensing object, at a distance of 1.''4 from near-infrared and IRAC sources. Photometric redshift estimates for the SMG using representative spectral energy distribution templates show the redshifts of 1.4-3.9. We estimate total far-infrared luminosity of (0.3-2.2) Multiplication-Sign 10{sup 14} {mu}{sup -1} L{sub Sun} and a star formation rate of 5600-39, 000 {mu}{sup -1} M{sub Sun} yr{sup -1}, where {mu} is the gravitational magnification factor. This apparent extreme star formation activity is likely explained by a highly magnified gravitational lens system.

Takekoshi, Tatsuya; Minamidani, Tetsuhiro; Sorai, Kazuo; Habe, Asao [Department of Cosmosciences, Graduate School of Science, Hokkaido University, Sapporo 060-0810 (Japan); Tamura, Yoichi; Kohno, Kotaro [Institute of Astronomy, University of Tokyo, Osawa, Mitaka, Tokyo 181-0015 (Japan); Oogi, Taira [Department of Physics, Faculty of Science, Hokkaido University, Sapporo 060-0810 (Japan); Ezawa, Hajime; Komugi, Shinya; Mizuno, Norikazu; Muller, Erik; Kawamura, Akiko [Chile Observatory, National Astronomical Observatory, Mitaka, Tokyo 181-8588 (Japan); Oshima, Tai [Nobeyama Radio Observatory, National Astronomical Observatory of Japan, Minamimaki, Minamisaku, Nagano 384-1305 (Japan); Scott, Kimberly S. [North American ALMA Science Center, National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States); Austermann, Jason E. [Center for Astrophysics and Space Astronomy, University of Colorado, Boulder, CO 80309 (United States); Tosaki, Tomoka [Joetsu University of Education, Joetsu, Niigata 943-8512 (Japan); Onishi, Toshikazu [Department of Physical Science, Osaka Prefecture University, Gakuen 1-1, Sakai, 599-8531 Osaka (Japan); Fukui, Yasuo [Department of Astrophysics, Nagoya University, Chikusa-ku, Nagoya 464-8602 (Japan); Matsuo, Hiroshi [Advanced Technology Center, National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588 (Japan); Aretxaga, Itziar [Instituto Nacional de Astrofisica, Optica y Electronica (INAOE), 72000 Puebla (Mexico); and others

2013-09-10T23:59:59.000Z

189

Discriminant analysis of solar bright points and faculae II. Contrast and morphology analysis  

E-Print Network [OSTI]

Taken at a high spatial resolution of 0.1 arcsec, Bright Points (BPs) are found to coexist with faculae in images and the latter are often resolved as adjacent striations. Understanding the properties of these different features is fundamental to carrying out proxy magnetometry. To shed light on the relationship between BPs and faculae, we studied them separately after the application of a classification method, developed and described in a previous paper) on active region images at various heliocentric angles. In this Paper, we explore different aspects of the photometric properties of BPs and faculae, namely their G-band contrast profiles, their peak contrast in G-band and continuum, as well as morphological parameters. We find that: (1) the width of the contrast profiles of the classified BPs and faculae are consistent with studies of disk center BPs at and limb faculae, which indirectly confirms the validity of our classification, (2) the profiles of limb faculae are limbward skewed on average, while near...

Kobel, P; Solanki, S K

2014-01-01T23:59:59.000Z

190

The stellar content of the XMM-Newton Bright Serendipitous Survey  

E-Print Network [OSTI]

Context: The comparison of observed counts in a given sky direction with predictions by Galactic models yields constraints to the spatial distribution and the stellar birthrate of young stellar populations. In this work we present the results of the analysis of the stellar content of the XMM-Newton Bright Serendipitous Survey (XBSS). This unbiased survey includes a total of 58 stellar sources selected in the 0.5 -- 4.5 keV energy band, having a limiting sensitivity of $10^{-2}$ cnt s$^{-1}$ and covering an area of 28.10 sq. deg. Aims: Our main goal is to understand the recent star formation history of the Galaxy in the vicinity of the Sun. Methods: We compare the observations with the predictions obtained with XCOUNT, a model of the stellar X-ray content of the Galaxy. The model predicts the number and properties of the stars to be observed in terms of magnitude, colour, population and $f_\\mathrm{x}/f_\\mathrm{v}$ ratio distributions of the coronal sources detected with a given instrument and sensitivity in a specific sky direction. Results: As in other shallow surveys, we observe an excess of stars not predicted by our Galaxy model. Comparing the colours of the identified infrared counterparts with the model predictions, we observe that this excess is produced by yellow (G+K) stars. The study of the X-ray spectrum of each source reveals a main population of stars with coronal temperature stratification typical of intermediate-age stars. As no assumptions have been made for the selection of the sample, our results must be representative of the entire Solar Neighbourhood. Some stars show excess circumstellar absorption indicative of youth.

J. Lopez-Santiago; G. Micela; S. Sciortino; F. Favata; A. Caccianiga; R. Della Ceca; P. Severgnini; V. Braito

2006-10-12T23:59:59.000Z

191

High-brightness electron beam evolution following laser-based cleaning of a photocathode  

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

Laser-based techniques have been widely used for cleaning metal photocathodes to increase quantum efficiency (QE). However, the impact of laser cleaning on cathode uniformity and thereby on electron beam quality are less understood. We are evaluating whether this technique can be applied to revive photocathodes used for high-brightness electron sources in advanced x-ray free-electron laser (FEL) facilities, such as the Linac Coherent Light Source (LCLS) at the SLAC National Accelerator Laboratory. The laser-based cleaning was applied to two separate areas of the current LCLS photocathode on July 4 and July 26, 2011, respectively. The QE was increased by 810 times upon the laser cleaning. Since the cleaning, routine operation has exhibited a slow evolution of the QE improvement and comparatively rapid improvement of transverse emittance, with a factor of 3 QE enhancement over five months, and a significant emittance improvement over the initial 23 weeks following the cleaning. Currently, the QE of the LCLS photocathode is holding constant at about 1.210?4 , with a normalized injector emittance of about 0.3???m for a 150-pC bunch charge. With the proper procedures, the laser-cleaning technique appears to be a viable tool to revive the LCLS photocathode. We present observations and analyses for the QE and emittance evolution in time following the laser-based cleaning of the LCLS photocathode, and comparison to the previous studies, the measured thermal emittance versus the QE and comparison to the theoretical model.

Zhou, F.; Brachmann, A.; Decker, F-J.; Emma, P.; Gilevich, S.; Iverson, R.; Stefan, P.; Turner, J.

2012-09-01T23:59:59.000Z

192

Posters Brightness Fields of Broken Clouds V. E. Zuev, G. A. Titov, E. I. Kasyanov, and D. A. Zimin  

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

1 1 Posters Brightness Fields of Broken Clouds V. E. Zuev, G. A. Titov, E. I. Kasyanov, and D. A. Zimin Institute of Atmospheric Optics, Siberian Branch Russian Academy of Sciences Tomsk, Russia Introduction The radiation budget and brightness field of the system "atmosphere-underlying surface" are controlled, to a considerable degree, by the variety of forms and the strong space-time variability of cloud cover. The space and angle structure of the radiation fields of cloudy atmosphere together with their sensitivity to cloud variations provide an important source of information needed to formulate and solve problems of the remote optical sensing of cloudy atmosphere (e.g., King 1987; Yi et al. 1990) and of satellite meteorology, as well as for retrievals of the albedo from

193

CONCEPTUAL DESIGN OF A BRIGHT ELECTRON INJECTOR BASED ON A LASER-DRIVEN PHOTOCATHODE RF ELECTRON GUN  

SciTech Connect (OSTI)

Conceptual design of a bright electron injector for the 1 GeV high gradient test experiment. envisaged by the LLNL-SLAC-LBL collaboration on the Relativistic Klystron is presented. The design utilizes a high-brightness laser-driven RF photocathode electron gun, similar to the pioneering LANL early studies in concept (different parametrically however), together with achromatic magnetic bunching and transport systems and diagnostics. The design is performed with attention to possible use in an FEL as well. A simple but realistic analytic model including longitudinal and transverse space-charge and RF effects and extensive computer simulation form the basis of the parametric choice for the source. These parameters are used as guides for the design of the pico-second laser system and magnetic bunching section.

Chattopadhyay, S.; Chen, Y.J.; Hopkins, D.; Kim, K.J.; Kung, A.; Miller, R.; Sessler, a.; Young, T.

1988-09-01T23:59:59.000Z

194

Contributions of artificial lighting sources on light pollution in Hong Kong measured through a night sky brightness monitoring network  

E-Print Network [OSTI]

Light pollution is a form of environmental degradation in which excessive artificial outdoor lighting, such as street lamps, neon signs, and illuminated signboards, affects the natural environment and the ecosystem. Poorly designed outdoor lighting not only wastes energy, money, and valuable Earth resources, but also robs us of our beautiful night sky. Effects of light pollution on the night sky can be evaluated by the skyglow caused by these artificial lighting sources, through measurements of the night sky brightness (NSB). The Hong Kong Night Sky Brightness Monitoring Network (NSN) was established to monitor in detail the conditions of light pollution in Hong Kong. Monitoring stations were set up throughout the city covering a wide range of urban and rural settings to continuously measure the variations of the NSB. Over 4.6 million night sky measurements were collected from 18 distinct locations between May 2010 and March 2013. This huge dataset, over two thousand times larger than our previous survey, for...

Pun, Chun Shing Jason; Leung, Wai Yan; Wong, Chung Fai

2014-01-01T23:59:59.000Z

195

A Systematic Search for High Surface Brightness Giant Arcs in a Sloan Digital Sky Survey Cluster Sample  

E-Print Network [OSTI]

We present the results of a search for gravitationally-lensed giant arcs conducted on a sample of 825 SDSS galaxy clusters. Both a visual inspection of the images and an automated search were performed and no arcs were found. This result is used to set an upper limit on the arc probability per cluster. We present selection functions for our survey, in the form of arc detection efficiency curves plotted as functions of arc parameters, both for the visual inspection and the automated search. The selection function is such that we are sensitive only to long, high surface brightness arcs with g-band surface brightness mu_g 10. Our upper limits on the arc probability are compatible with previous arc searches. Lastly, we report on a serendipitous discovery of a giant arc in the SDSS data, known inside the SDSS Collaboration as Hall's arc.

J. Estrada; J. Annis; H. T. Diehl; P. B. Hall; T. Las; H. Lin; M. Makler; K. W. Merritt; V. Scarpine; S. Allam; D. Tucker

2007-01-12T23:59:59.000Z

196

Experimental investigation of bright spots in broadband, gated x-ray images of ignition-scale implosions on the National Ignition Facility  

SciTech Connect (OSTI)

Bright spots in the hot spot intensity profile of gated x-ray images of ignition-scale implosions at the National Ignition Facility [G. H. Miller et al., Opt. Eng. 443, (2004)] are observed. X-ray images of cryogenically layered deuterium-tritium (DT) and tritium-hydrogen-deuterium (THD) ice capsules, and gas filled plastic shell capsules (Symcap) were recorded along the hohlraum symmetry axis. Heterogeneous mixing of ablator material and fuel into the hot spot (i.e., hot-spot mix) by hydrodynamic instabilities causes the bright spots. Hot-spot mix increases the radiative cooling of the hot spot. Fourier analysis of the x-ray images is used to quantify the evolution of bright spots in both x- and k-space. Bright spot images were azimuthally binned to characterize bright spot location relative to known isolated defects on the capsule surface. A strong correlation is observed between bright spot location and the fill tube for both Symcap and cryogenically layered DT and THD ice targets, indicating the fill tube is a significant seed for the ablation front instability causing hot-spot mix. The fill tube is the predominant seed for Symcaps, while other capsule non-uniformities are dominant seeds for the cryogenically layered DT and THD ice targets. A comparison of the bright spot power observed for Si- and Ge-doped ablator targets shows heterogeneous mix in Symcap targets is mostly material from the doped ablator layer.

Barrios, M. A.; Suter, L. J.; Glenn, S.; Benedetti, L. R.; Bradley, D. K.; Collins, G. W.; Hammel, B. A.; Izumi, N.; Ma, T.; Scott, H.; Smalyuk, V. A. [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)] [Lawrence Livermore National Laboratory, Livermore, California 94550 (United States); Regan, S. P.; Epstein, R. [Laboratory for Laser Energetics, University of Rochester 250 East River Road, Rochester, New York 14623-199 (United States)] [Laboratory for Laser Energetics, University of Rochester 250 East River Road, Rochester, New York 14623-199 (United States); Kyrala, G. A. [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

2013-07-15T23:59:59.000Z

197

Steps toward a high precision solar rotation profile: Results from SDO/AIA coronal bright point data  

E-Print Network [OSTI]

Coronal bright points (CBP) are ubiquitous small brightenings in the solar corona associated with small magnetic bipoles. We derive the solar differential rotation profile by tracing the motions of CBPs detected by the Atmospheric Imaging Assembly (AIA) instrument aboard the Solar Dynamics Observatory (SDO). We also investigate problems related to detection of coronal bright points resulting from instrument and detection algorithm limitations. To determine the positions and identification of coronal bright points we used a segmentation algorithm. A linear fit of their central meridian distance and latitude versus time was utilised to derive velocities. We obtained 906 velocity measurements in a time interval of only 2 days. The differential rotation profile can be expressed as $\\omega_{rot} = (14.47\\pm 0.10 + (0.6\\pm 1.0)\\sin^{2}(b) + (-4.7\\pm 1.7)\\sin^{4}(b))$\\degr day$^{-1}$. Our result is in agreement with other work and it comes with reasonable errors in spite of the very short time interval used. This wa...

Sudar, Davor; Braja, Roman; Saar, Steven H

2015-01-01T23:59:59.000Z

198

EFFECTS OF MAGNETIC FIELD AND FAR-ULTRAVIOLET RADIATION ON THE STRUCTURES OF BRIGHT-RIMMED CLOUDS  

SciTech Connect (OSTI)

The bright-rimmed cloud SFO 22 was observed with the 45 m telescope of Nobeyama Radio Observatory in the {sup 12}CO (J = 1-0), {sup 13}CO (J = 1-0), and C{sup 18}O (J = 1-0) lines, where well-developed head-tail structure and small line widths were found. Such features were predicted by radiation-driven implosion models, suggesting that SFO 22 may be in a quasi-stationary equilibrium state. We compare the observed properties with those from numerical models of a photoevaporating cloud, which include effects of magnetic pressure and heating due to strong far-ultraviolet (FUV) radiation from an exciting star. The magnetic pressure may play a more important role in the density structures of bright-rimmed clouds than the thermal pressure that is enhanced by the FUV radiation. The FUV radiation can heat the cloud surface to near 30 K; however, its effect is not enough to reproduce the observed density structure of SFO 22. An initial magnetic field of 5 {mu}G in our numerical models produces the best agreement with the observations, and its direction can affect the structures of bright-rimmed clouds.

Motoyama, Kazutaka [National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430 (Japan)] [National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430 (Japan); Umemoto, Tomofumi [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 191-8588 (Japan)] [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 191-8588 (Japan); Shang, Hsien; Hasegawa, Tatsuhiko, E-mail: motoyama@nii.ac.jp [Institute of Astronomy and Astrophysics, Academia Sinica, Taipei 106, Taiwan (China)] [Institute of Astronomy and Astrophysics, Academia Sinica, Taipei 106, Taiwan (China)

2013-03-20T23:59:59.000Z

199

The case for iron  

Science Journals Connector (OSTI)

added Fe doubled at rates 1 l-40% of the expected maxima at various temperatures. The addition ..... 1990a). All in all, the combined Fe distribution and experimental evidence .... water column is stabilized and the sun shines brightly, offshore...

2000-03-18T23:59:59.000Z

200

1998 - 06 | Jefferson Lab  

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

June 1998 Sun, 06281998 - 11:00pm FEL Shines Bright in Debut (Virginia Business Observer) Sat, 06201998 - 11:00pm Laser Breaks Record (Richmond Times-Dispatch) Thu, 06181998...

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201

Cloud episode propagation over the Indonesian Maritime Continent from 10years of infrared brightness temperature observations  

Science Journals Connector (OSTI)

The cloud-top brightness temperature data from 2001 to 2010 are used to derive a climatology of deep convection duration, span, and propagation speed over the Indonesian Maritime Continent (10S10N, 80E160E). The full domain of study is divided into northern (010N) and southern (010S) regions to investigate the seasonal and latitudinal variabilities of cloud streaks. The ratio of westward- to eastward-propagating cloud streaks is found to be approximately 3:1. Westward-moving streaks generally have longer spans and faster speeds than eastward-moving systems. Coherent episodes of westward- (eastward-) propagating systems have 9.5 (7.5) h durations and 519 (378) km spans on average; most episodes have zonal phase speeds of 630ms?1. Median zonal phase speeds of 14.2 (westward) and 13.5ms?1 (eastward) are found for events with >1000km spans and >20h durations. The recurrence frequency, which is categorized from 1 event per day to 1 event per month, is also discussed. The latitudinal and seasonal dependences of statistical properties are strongly influenced by the Inter-Tropical Convergence Zone annual cycle. The number of westward-migrating systems is significant every month, while eastward-migrating systems strongly vary by season and latitude. Eastward migration is less frequent in the southern region during June, July and August (JJA) and in the northern region during December, January and February (DJF). In the northern region, the westward-propagating events' mean span is much longer during JJA, September, October, and November (SON) than the other periods; this effect is partially due to the favorable environmental shear conditions necessary to sustain a long-lived system. Eastward- and westward-propagating events are found during the shortwave heating and dissipation modes of diurnal cycle phase. Thus, thermal forcing, which is associated with the elevated terrain found over the islands and the landsea interface, is dominant on a daily basis. Several possible reasons behind the present results besides the environmental conditions are discussed. It is found that low-level wind may support the precipitation propagation speed, and its support may depend on the MaddenJulian Oscillation (MJO) phase. However, advection by wind alone is likely insufficient to propagate the precipitation as quickly, as our results show. The speed of precipitation migration particularly around Sumatra is similar to the values reported in the framework of propagating gravity waves and moist Kelvin waves.

Marzuki; Hiroyuki Hashiguchi; Masayuki K. Yamamoto; Mamoru Yamamoto; Shuichi Mori; Manabu D. Yamanaka; Richard E. Carbone; John D. Tuttle

2013-01-01T23:59:59.000Z

202

DISCOVERING BRIGHT QUASARS AT INTERMEDIATE REDSHIFTS BASED ON OPTICAL/NEAR-INFRARED COLORS  

SciTech Connect (OSTI)

The identification of quasars at intermediate redshifts (2.2 < z < 3.5) has been inefficient in most previous quasar surveys since the optical colors of quasars are similar to those of stars. The near-IR K-band excess technique has been suggested to overcome this difficulty. Our recent study also proposed to use optical/near-IR colors for selecting z < 4 quasars. To verify the effectiveness of this method, we selected a list of 105 unidentified bright targets with i ? 18.5 from the quasar candidates of SDSS DR6 with both SDSS ugriz optical and UKIDSS YJHK near-IR photometric data, which satisfy our proposed Y K/g z criterion and have photometric redshifts between 2.2 and 3.5 estimated from the nine-band SDSS-UKIDSS data. We observed 43 targets with the BFOSC instrument on the 2.16 m optical telescope at Xinglong station of the National Astronomical Observatory of China in the spring of 2012. We spectroscopically identified 36 targets as quasars with redshifts between 2.1 and 3.4. The high success rate of discovering these quasars in the SDSS spectroscopic surveyed area further demonstrates the robustness of both the Y K/g z selection criterion and the photometric redshift estimation technique. We also used the above criterion to investigate the possible stellar contamination rate among the quasar candidates of SDSS DR6, and found that the rate is much higher when selecting 3 < z < 3.5 quasar candidates than when selecting lower redshift candidates (z < 2.2). The significant improvement in the photometric redshift estimation when using the nine-band SDSS-UKIDSS data over the five-band SDSS data is demonstrated and a catalog of 7727 unidentified quasar candidates in SDSS DR6 selected with optical/near-IR colors and having photometric redshifts between 2.2 and 3.5 is provided. We also tested the Y K/g z selection criterion with the recently released SDSS-III/DR9 quasar catalog and found that 96.2% of 17,999 DR9 quasars with UKIDSS Y- and K-band data satisfy our criterion. With some available samples of red quasars and type II quasars, we find that 88% and 96.5% of these objects can be selected by the Y K/g z criterion, respectively, which supports our claim that using the Y K/g z criterion efficiently selects both unobscured and obscured quasars. We discuss the implications of our results on the ongoing and upcoming large optical and near-IR sky surveys.

Wu, Xue-Bing; Zuo, Wenwen; Yang, Jinyi; Yang, Qian; Wang, Feige, E-mail: wuxb@pku.edu.cn [Department of Astronomy, Peking University, Beijing 100871 (China)

2013-10-01T23:59:59.000Z

203

The Near-Infrared Photometric Properties of Bright Giants in the Central Regions of the Galactic Bulge  

E-Print Network [OSTI]

Images recorded through broad (J, H, K), and narrow (CO, and 2.2micron continuum) band filters are used to investigate the photometric properties of bright (K < 13.5) stars in a 6 x 6 arcmin field centered on the SgrA complex. The giant branch ridgelines in the (K, J-K) and (K, H-K) color-magnitude diagrams are well matched by the Baade's Window (BW) M giant sequence if the mean extinction is A_K ~ 2.8 mag. Extinction measurements for individual stars are estimated using the M_K versus infrared color relations defined by M giants in BW, and the majority of stars have A_K between 2.0 and 3.5 mag. The extinction is locally high in the SgrA complex, where A_K ~ 3.1 mag. Reddening-corrected CO indices, CO_o, are derived for over 1300 stars with J, H, and K brightnesses, and over 5300 stars with H and K brightnesses. The distribution of CO_o values for stars with K_o between 11.25 and 7.25 can be reproduced using the M_K versus CO_o relation defined by M giants in BW. The data thus suggest that the most metal-rich giants in the central regions of the bulge and in BW have similar photometric properties and 2.3micron CO strengths. Hence, it appears that the central region of the bulge does not contain a population of stars that are significantly more metal-rich than what is seen in BW.

T. J. Davidge

1998-03-24T23:59:59.000Z

204

Comparison of heliospheric current sheet structure obtained from potential magnetic field computations and from observed polarization coronal brightness  

SciTech Connect (OSTI)

The report compares the structure of the heliospheric current sheet early in Sunspot Cycle 21 as computed from the observed photospheric magnetic field with a potential field approximation, and as inferred from synoptic maps of the observed coronal polarization brightness. On most of the solar rotations compared, the two methods give essentially the same results; the basic shape of the warped current sheet and the amplitude (in solar latitude) of the displacements of the sheet from the solar equator are similar. On one rotation the current sheet computed with the potential field approximation appears to be distorted by a large photospheric region of unbalanced magnetic flux.

Wilcox, J.M.; Hundhausen, A.J.

1983-02-01T23:59:59.000Z

205

HerMES: A DEFICIT IN THE SURFACE BRIGHTNESS OF THE COSMIC INFRARED BACKGROUND DUE TO GALAXY CLUSTER GRAVITATIONAL LENSING  

SciTech Connect (OSTI)

We have observed four massive galaxy clusters with the SPIRE instrument on the Herschel Space Observatory and measure a deficit of surface brightness within their central region after removing detected sources. We simulate the effects of instrumental sensitivity and resolution, the source population, and the lensing effect of the clusters to estimate the shape and amplitude of the deficit. The amplitude of the central deficit is a strong function of the surface density and flux distribution of the background sources. We find that for the current best fitting faint end number counts, and excellent lensing models, the most likely amplitude of the central deficit is the full intensity of the cosmic infrared background (CIB). Our measurement leads to a lower limit to the integrated total intensity of the CIB of I{sub 250{mu}m}>0.69{sub -0.03}{sup +0.03}(stat.){sub -0.06}{sup +0.11}(sys.) MJy sr{sup -1}, with more CIB possible from both low-redshift sources and from sources within the target clusters. It should be possible to observe this effect in existing high angular resolution data at other wavelengths where the CIB is bright, which would allow tests of models of the faint source component of the CIB.

Zemcov, M.; Cooray, A.; Bock, J.; Dowell, C. D.; Nguyen, H. T. [California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125 (United States); Blain, A. [Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH (United Kingdom); Bethermin, M. [Laboratoire AIM-Paris-Saclay, CEA/DSM/Irfu-CNRS-Universite Paris Diderot, CE-Saclay, pt courrier 131, F-91191 Gif-sur-Yvette (France); Clements, D. L. [Astrophysics Group, Imperial College London, Blackett Laboratory, Prince Consort Road, London SW7 2AZ (United Kingdom); Conley, A.; Glenn, J. [Center for Astrophysics and Space Astronomy 389-UCB, University of Colorado, Boulder, CO 80309 (United States); Conversi, L. [Herschel Science Centre, European Space Astronomy Centre, Villanueva de la Canada, E-28691 Madrid (Spain); Farrah, D.; Oliver, S. J.; Roseboom, I. G. [Astronomy Centre, Department of Physics and Astronomy, University of Sussex, Brighton BN1 9QH (United Kingdom); Griffin, M. [School of Physics and Astronomy, Cardiff University, Queens Buildings, The Parade, Cardiff CF24 3AA (United Kingdom); Halpern, M.; Marsden, G. [Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1 (Canada); Jullo, E.; Kneib, J.-P. [Aix-Marseille Universite, CNRS, LAM (Laboratoire d'Astrophysique de Marseille) UMR7326, F-13388 Marseille (France); Richard, J., E-mail: zemcov@caltech.edu [Centre de Recherche Astronomique de Lyon, Universite Lyon 1, 9 avenue Charles Andre, F-69230 Saint-Genis Laval (France); and others

2013-06-01T23:59:59.000Z

206

A COMPLETE SAMPLE OF BRIGHT SWIFT LONG GAMMA-RAY BURSTS. I. SAMPLE PRESENTATION, LUMINOSITY FUNCTION AND EVOLUTION  

SciTech Connect (OSTI)

We present a carefully selected sub-sample of Swift long gamma-ray bursts (GRBs) that is complete in redshift. The sample is constructed by considering only bursts with favorable observing conditions for ground-based follow-up searches, which are bright in the 15-150 keV Swift/BAT band, i.e., with 1-s peak photon fluxes in excess to 2.6 photons s{sup -1} cm{sup -2}. The sample is composed of 58 bursts, 52 of them with redshift for a completeness level of 90%, while another two have a redshift constraint, reaching a completeness level of 95%. For only three bursts we have no constraint on the redshift. The high level of redshift completeness allows us for the first time to constrain the GRB luminosity function and its evolution with cosmic times in an unbiased way. We find that strong evolution in luminosity ({delta}{sub l} = 2.3 {+-} 0.6) or in density ({delta}{sub d} = 1.7 {+-} 0.5) is required in order to account for the observations. The derived redshift distributions in the two scenarios are consistent with each other, in spite of their different intrinsic redshift distributions. This calls for other indicators to distinguish among different evolution models. Complete samples are at the base of any population studies. In future works we will use this unique sample of Swift bright GRBs to study the properties of the population of long GRBs.

Salvaterra, R. [INAF, IASF Milano, via E. Bassini 15, I-20133 Milano (Italy); Campana, S.; Vergani, S. D.; Covino, S.; D'Avanzo, P.; Fugazza, D.; Ghirlanda, G.; Ghisellini, G.; Melandri, A.; Sbarufatti, B.; Tagliaferri, G. [INAF, Osservatorio Astronomico di Brera, via E. Bianchi 46, I-23807 Merate (Saint Lucia) (Italy); Nava, L. [SISSA, via Bonomea 265, I-34136 Trieste (Italy); Flores, H. [Laboratoire GEPI, Observatoire de Paris, CNRS-UMR8111, Univ. Paris-Diderot 5 place Jules Janssen, 92195 Meudon (France); Piranomonte, S., E-mail: ruben@lambrate.inaf.it [INAF, Osservatorio Astronomico di Roma, via Frascati 33, 00040 Monte Porzio Catone, Rome (Italy)

2012-04-10T23:59:59.000Z

207

Bright and dark solitons in the normal dispersion regime of inhomogeneous optical fibers: Soliton interaction and soliton control  

SciTech Connect (OSTI)

Symbolically investigated in this paper is a nonlinear Schroedinger equation with the varying dispersion and nonlinearity for the propagation of optical pulses in the normal dispersion regime of inhomogeneous optical fibers. With the aid of the Hirota method, analytic one- and two-soliton solutions are obtained. Relevant properties of physical and optical interest are illustrated. Different from the previous results, both the bright and dark solitons are hereby derived in the normal dispersion regime of the inhomogeneous optical fibers. Moreover, different dispersion profiles of the dispersion-decreasing fibers can be used to realize the soliton control. Finally, soliton interaction is discussed with the soliton control confirmed to have no influence on the interaction. The results might be of certain value for the study of the signal generator and soliton control.

Liu Wenjun [School of Science, P. O. Box 122, Beijing University of Posts and Telecommunications, Beijing 100876 (China); Tian Bo, E-mail: tian.bupt@yahoo.com.c [School of Science, P. O. Box 122, Beijing University of Posts and Telecommunications, Beijing 100876 (China); State Key Laboratory of Software Development Environment, Beijing University of Aeronautics and Astronautics, Beijing 100191 (China); Key Laboratory of Information Photonics and Optical Communications (BUPT), Ministry of Education, P. O. Box 128, Beijing University of Posts and Telecommunications, Beijing 100876 (China); Xu Tao; Sun Kun; Jiang Yan [School of Science, P. O. Box 122, Beijing University of Posts and Telecommunications, Beijing 100876 (China)

2010-08-15T23:59:59.000Z

208

Brightness distribution of synchrotron radiation in the field of a magnetic dipole and the nature of double radio sources  

SciTech Connect (OSTI)

A model of double radio sources is proposed. In it, the radio radiation is produced by the motion of relativistic particles in a dipole magnetic field whose source is the optical galaxy. Calculations of the apparent brightness distribution of the synchroton radiation of electrons in such a field make it possible to explain some observed features of radio sources: a) the double nature of structure, b) the disposition of the components of the double source on a single straight line with the parent galaxy, c) the dependence of the size of the components on the frequency, d) the preferential direction of the field along the principal axis of the source, e) the similarity of the structures of radio sources in wide ranges of linear and angular sizes. Some other features can also be explained.

Zyskin, Y.L.; Stepanyan, A.A.

1985-05-01T23:59:59.000Z

209

GRB 090926A AND BRIGHT LATE-TIME FERMI LARGE AREA TELESCOPE GAMMA-RAY BURST AFTERGLOWS  

SciTech Connect (OSTI)

GRB 090926A was detected by both the Gamma-ray Burst Monitor and Large Area Telescope (LAT) instruments on board the Fermi Gamma-ray Space Telescope. Swift follow-up observations began {approx}13 hr after the initial trigger. The optical afterglow was detected for nearly 23 days post trigger, placing it in the long-lived category. The afterglow is of particular interest due to its brightness at late times, as well as the presence of optical flares at T0+10{sup 5} s and later, which may indicate late-time central engine activity. The LAT has detected a total of 16 gamma-ray bursts; nine of these bursts, including GRB 090926A, also have been observed by Swift. Of the nine Swift-observed LAT bursts, six were detected by UVOT, with five of the bursts having bright, long-lived optical afterglows. In comparison, Swift has been operating for five years and has detected nearly 500 bursts, but has only seen {approx}30% of bursts with optical afterglows that live longer than 10{sup 5} s. We have calculated the predicted gamma-ray fluence, as would have been seen by the Burst Alert Telescope (BAT) on board Swift, of the LAT bursts to determine whether this high percentage of long-lived optical afterglows is unique, when compared to BAT-triggered bursts. We find that, with the exception of the short burst GRB 090510A, the predicted BAT fluences indicate that the LAT bursts are more energetic than 88% of all Swift bursts and also have brighter than average X-ray and optical afterglows.

Swenson, C. A.; Roming, P. W. A.; Vetere, L.; Kennea, J. A. [Pennsylvania State University, 525 Davey Lab, University Park, PA 16802 (United States); Maxham, A.; Zhang, B. B.; Zhang, B. [University of Nevada, Las Vegas, Box 454002, 4505 Maryland Parkway, Las Vegas, NV 89154 (United States); Schady, P. [Max-Planck-Institut fuer extraterrestrische Physik, Garching (Germany); Holland, S. T. [Universities Space Research Association, 10227 Wincopin Circle, Suite 500, Columbia, MD 21044 (United States); Kuin, N. P. M.; Oates, S. R.; De Pasquale, M. [The UCL Mullard Space Science Laboratory, Holmbury St Mary, Surrey, RH5 6NT (United Kingdom); Page, K. L., E-mail: cswenson@astro.psu.ed [Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH (United Kingdom)

2010-07-20T23:59:59.000Z

210

ULTRAVIOLET-BRIGHT STELLAR POPULATIONS AND THEIR EVOLUTIONARY IMPLICATIONS IN THE COLLAPSED-CORE CLUSTER M15  

SciTech Connect (OSTI)

We performed deep photometry of the central region of the Galactic globular cluster M15 from archival Hubble Space Telescope data taken on the High Resolution Channel and Solar Blind Channel of the Advanced Camera for Surveys. Our data set consists of images in far-UV (FUV{sub 140}; F140LP), near-UV (NUV{sub 220}; F220W), and blue (B{sub 435}; F435W) filters. The addition of an optical filter complements previous UV work on M15 by providing an additional constraint on the UV-bright stellar populations. Using color-magnitude diagrams (CMDs), we identified several populations that arise from non-canonical evolution including candidate blue stragglers, extreme horizontal branch (HB) stars, blue hook (BHk) stars, cataclysmic variables (CVs), and helium-core white dwarfs (He WDs). Due to preliminary identification of several He WD and BHk candidates, we add M15 as a cluster containing an He WD sequence and suggest it be included among clusters with a BHk population. We also investigated a subset of CV candidates that appear in the gap between the main sequence (MS) and WDs in FUV{sub 140}-NUV{sub 220} but lie securely on the MS in NUV{sub 220}-B{sub 435}. These stars may represent a magnetic CV or detached WD-MS binary population. Additionally, we analyze our candidate He WDs using model cooling sequences to estimate their masses and ages and investigate the plausibility of thin versus thick hydrogen envelopes. Finally, we identify a class of UV-bright stars that lie between the HB and WD cooling sequences, a location not usually populated on cluster CMDs. We conclude these stars may be young, low-mass He WDs.

Haurberg, Nathalie C.; Lubell, Gabriel M. G.; Cohn, Haldan N.; Lugger, Phyllis M. [Indiana University Department of Astronomy, Bloomington, IN 47405 (United States); Anderson, Jay [Space Telescope Science Institute, Baltimore, MD 21218 (United States); Cool, Adrienne M. [Department of Physics and Astronomy, San Francisco State University, 1600 Holloway Avenue, San Francisco, CA 94132 (United States); Serenelli, Aldo M., E-mail: nhauber@astro.indiana.ed, E-mail: glubell@astro.indiana.ed, E-mail: cohn@astro.indiana.ed, E-mail: lugger@astro.indiana.ed, E-mail: jayander@stsci.ed, E-mail: cool@stars.sfsu.ed, E-mail: aldos@MPA-Garching.MPG.D [Max-Planck-Institut fuer Astrophysik, Karl-Schwarzschild-Str. 1, Garching, 85471 (Germany)

2010-10-10T23:59:59.000Z

211

Argonne Researchers Shine "Light" on Origins of Wind Turbine...  

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

However, the APS source is powerful enough to look through hard bearing steel. Using this micro-tomography capability, ANL researchers have examined several failed bearing pieces...

212

Galaxies that Shine: radiation-hydrodynamical simulations of disk galaxies  

E-Print Network [OSTI]

Radiation feedback is typically implemented using subgrid recipes in hydrodynamical simulations of galaxies. Very little work has so far been performed using radiation-hydrodynamics (RHD), and there is no consensus on the importance of radiation feedback in galaxy evolution. We present RHD simulations of isolated galaxy disks of different masses with a resolution of 18 pc. Besides accounting for supernova feedback, our simulations are the first galaxy-scale simulations to include RHD treatments of photo-ionisation heating and radiation pressure, from both direct optical/UV radiation and multi-scattered, re-processed infrared (IR) radiation. Photo-heating smooths and thickens the disks and suppresses star formation about as much as the inclusion of ("thermal dump") supernova feedback does. These effects decrease with galaxy mass and are mainly due to the prevention of the formation of dense clouds, as opposed to their destruction. Radiation pressure, whether from direct or IR radiation, has little effect, but ...

Rosdahl, Joakim; Teyssier, Romain; Agertz, Oscar

2015-01-01T23:59:59.000Z

213

Cosmos incognito : Vera Rubin shines light on dark matter  

E-Print Network [OSTI]

This thesis, a profile of astronomer Vera Rubin, highlights her scientific achievements, most notably the irrefutable evidence she gathered to persuade the astronomical community that galaxies spin at a faster speed than ...

Yeager, Ashley

2008-01-01T23:59:59.000Z

214

Shining Soft X-rays on Magnetic Structures  

Science Journals Connector (OSTI)

...2) demonstrate the power of x-ray magneto-optics in a synchroton study of single crystalline FePd layers, which provides...2) demonstrate the power of x-ray magneto-optics in a synchroton study of single crystalline FePd layers, which provides detailed...

Ulrich Hillebrecht

1999-06-25T23:59:59.000Z

215

Los Alamos instrument to shine light on Mars habitability  

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

as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma physics and new materials. Los Alamos National Laboratory...

216

Shining light into the black box of spinal locomotor networks  

Science Journals Connector (OSTI)

...D. 2001 Central pattern generators and the control of rhythmic...02.019 ) Poon, M. 1980 Induction of swimming in lamprey by...Invertebrate central pattern generator circuits. Phil. Trans...cortex as a central pattern generator. Nat. Rev. Neurosci. 6...

2010-01-01T23:59:59.000Z

217

Shining through the centuries: John Ray's life and legacy  

Science Journals Connector (OSTI)

...classical writers, Ray argued that God first created Chaos, and reordered...as `an obscure and sordid particle ... the discard and dregs...and also enunciated views on God and nature, later published as The Wisdom of God Manifest in the Works of the...

2000-01-01T23:59:59.000Z

218

EECBG Success Story: Light Shines on Better Budget for Glendale...  

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

along with state representatives and community leaders, cut the ribbon for the state's solar LED light pilot project. | Photo courtesy of Lionel Green, Sand Mountain Reporter....

219

Shining Light on the Fleeting Interactions of Single Molecules...  

Office of Science (SC) Website

encounter events is not easy due to the perpetual thermal agitation of the surrounding water molecules, and nanometer-sized biomolecules quickly diffuse out of the field-of-view...

220

Why Does the Sun Shine? Is the Sun on Fire?  

E-Print Network [OSTI]

. · Total chemical potential would be 1045 ergs. · This is the solar luminosity for 4000 years. = 5 x 1044 A gigantic nuclear furnace where hydrogen is built into helium at a temperature of millions of degrees Yo ho of incandescent gas A gigantic nuclear furnace where hydrogen is built into helium at a temperature of millions

Walter, Frederick M.

Note: This page contains sample records for the topic "all-stars shine bright" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


221

After Years in the Dark, Electric Plastic Finally Shines  

Science Journals Connector (OSTI)

...seeded with references to guitar strings. Roukes is not an architect...to suspension bridges, guitar strings, and other oscillating mechanical systems. These microscopic...these lilliputian bridges and strings Roukes will be able to trace...

Daniel Clery

1994-03-25T23:59:59.000Z

222

European Particle Accelerator Conference -Rome, Italy -June 7-12, 1988 DEVELOPMENT OFA HIGH BRIGHTNESS ELECTRON GUN FOR THE ACCELERATOR TEST FACILITY AT  

E-Print Network [OSTI]

BRIGHTNESS ELECTRON GUN FOR THE ACCELERATOR TEST FACILITY AT BROOKHAVEN NATIONAL LABORATORY* K. Batchelor, HDonald Princeton University At innBNL--41767 DE89 002179 Abstract An electron gun utilizing aradio frequency on the design of (he electron gun which will provide r.f. bunches of upto 101 electrons synchronized

McDonald, Kirk

223

THE BRIGHT GAMMA-RAY BURST OF 2000 FEBRUARY 10: A CASE STUDY OF AN OPTICALLY DARK GAMMA-RAY BURST  

E-Print Network [OSTI]

THE BRIGHT GAMMA-RAY BURST OF 2000 FEBRUARY 10: A CASE STUDY OF AN OPTICALLY DARK GAMMA-RAY BURST L Received 2002 January 16; accepted 2002 June 8 ABSTRACT The gamma-ray burst GRB 000210 had the highest: observations -- gamma-rays: bursts 1. INTRODUCTION It is observationally well established that about half

Fynbo, Johan

224

With more than 90% of all stars sharing fates similar to that of the Sun, more mas-  

E-Print Network [OSTI]

al. monitored the -Cephei star HD 129929 (with a mass of 9.5 solar mass- es) for more than 21 years of convection in its central nuclear furnace drives mixing of material beyond the "classi- cal" limits cooling track--the last part of this evolution for stars of less than ~8 solar masses (M

Melbourne, Timothy

225

CARMA SURVEY TOWARD INFRARED-BRIGHT NEARBY GALAXIES (STING): MOLECULAR GAS STAR FORMATION LAW IN NGC 4254  

SciTech Connect (OSTI)

This study explores the effects of different assumptions and systematics on the determination of the local, spatially resolved star formation law. Using four star formation rate (SFR) tracers (H{alpha} with azimuthally averaged extinction correction, mid-infrared 24 {mu}m, combined H{alpha} and mid-infrared 24 {mu}m, and combined far-ultraviolet and mid-infrared 24 {mu}m), several fitting procedures, and different sampling strategies, we probe the relation between SFR and molecular gas at various spatial resolutions (500 pc and larger) and surface densities ({Sigma}{sub H{sub 2}})approx. 10-245 M{sub sun} pc{sup -2}) within the central {approx}6.5 kpc in the disk of NGC 4254. We explore the effect of diffuse emission using an unsharp masking technique with varying kernel size. The fraction of diffuse emission, f{sub DE}, thus determined is a strong inverse function of the size of the filtering kernel. We find that in the high surface brightness regions of NGC 4254 the form of the molecular gas star formation law is robustly determined and approximately linear ({approx}0.8-1.1) and independent of the assumed fraction of diffuse emission and the SFR tracer employed. When the low surface brightness regions are included, the slope of the star formation law depends primarily on the assumed fraction of diffuse emission. In such a case, results range from linear when the fraction of diffuse emission in the SFR tracer is f{sub DE} {approx}< 30% (or when diffuse emission is removed in both the star formation and the molecular gas tracer) to super-linear ({approx}1.4) when f{sub DE} {approx}> 50%. We find that the tightness of the correlation between gas and star formation varies with the choice of star formation tracer. The 24 {mu}m SFR tracer by itself shows the tightest correlation with the molecular gas surface density, whereas the H{alpha} corrected for extinction using an azimuthally averaged correction shows the highest dispersion. We find that for R < 0.5R{sub 25} the local star formation efficiency is constant and similar to that observed in other large spirals, with a molecular gas depletion time {tau}{sub dep} {approx} 2 Gyr.

Rahman, Nurur; Bolatto, Alberto D.; Herrera-Camus, Rodrigo; Jameson, Katherine; Vogel, Stuart N. [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States); Wong, Tony; Xue Rui [Department of Astronomy, University of Illinois, Urbana-Champaign, IL 61801 (United States); Leroy, Adam K. [National Radio Astronomy Observatory, Charlottesville, VA (United States); Walter, Fabian [Max-Planck-Institute fur Astronomie, Konigstuhl 17, 69117 Heidelberg (Germany); Rosolowsky, Erik [I. K. Barber School of the Arts and Science, University of British Columbia, Kelowna, BC V1V1V7 (Canada); West, Andrew A. [Department of Astronomy, Boston University, Boston, MA 02215 (United States); Bigiel, Frank; Blitz, Leo [Department of Astronomy, University of California, Berkeley, CA 94720 (United States); Ott, Juergen, E-mail: nurur@astro.umd.edu [National Radio Astronomy Observatory, Socorro, NM 87801 (United States)

2011-04-01T23:59:59.000Z

226

Detection of significant cm to sub-mm band radio and gamma-ray correlated variability in Fermi bright blazars  

E-Print Network [OSTI]

The exact location of the gamma-ray emitting region in blazars is still controversial. In order to attack this problem we present first results of a cross-correlation analysis between radio (11 cm to 0.8 mm wavelength, F-GAMMA program) and gamma-ray (0.1-300 GeV) ~ 3.5 year light curves of 54 Fermi-bright blazars. We perform a source stacking analysis and estimate significances and chance correlations using mixed source correlations. Our results reveal: (i) the first highly significant multi-band radio and gamma-ray correlations (radio lagging gamma rays) when averaging over the whole sample, (ii) average time delays (source frame: 76+/-23 to 7+/-9 days), systematically decreasing from cm to mm/sub-mm bands with a frequency dependence tau_r,gamma (nu) ~ nu^-1, in good agreement with jet opacity dominated by synchrotron self-absorption, (iii) a bulk gamma-ray production region typically located within/upstream of the 3 mm core region (tau_3mm,gamma=12+/-8 days), (iv) mean distances between the region of gamma-...

Fuhrmann, L; Chiang, J; Angelakis, E; Zensus, J A; Nestoras, I; Krichbaum, T P; Ungerechts, H; Sievers, A; Pavlidou, V; Readhead, A C S; Max-Moerbeck, W; Pearson, T J

2014-01-01T23:59:59.000Z

227

The All Sky Automated Survey. The Catalog of Bright Variable Stars in the I-band, South of Declination +28  

E-Print Network [OSTI]

This paper presents the results of our extensive search for the bright variable stars in approximately 30000 square degrees of the south sky in the I-band data collected by 9 deg x 9 deg camera of the All Sky Automated Survey between 2002 and 2009. Lists of over 27000 variable stars brighter than 9 mag at maximum light, with amplitudes ranging from 0.02 mag to 7 mag and variability time-scales from hours to years, as well as corresponding light curves are provided. Automated classification algorithm based on stellar properties (period, Fourier coefficients, 2MASS J, H, K, colors, ASAS V-band data) was used to roughly classify objects. Despite low spatial resolution of the ASAS data (~15 arcs) we cross-identified all objects with other available data sources. Coordinates of the most probable 2MASS counterparts are provided. 27705 stars brighter than I=9 mag were found to be variable, of which 7842 objects were detected to be variable for the first time. Brief statistics and discussion of the presented data is ...

Sitek, Monika

2014-01-01T23:59:59.000Z

228

Testing Models of Intrinsic Brightness Variations in Type Ia Supernovae, and their Impact on Measuring Cosmological Parameters  

E-Print Network [OSTI]

For spectroscopically confirmed type Ia supernovae we evaluate models of intrinsic brightness variations with detailed data/Monte-Carlo comparisons of the dispersion in the following quantities: Hubble-diagram scatter, color difference (B-V-c) between the true B-V color and the fitted color (c) from the SALT-II light curve model, and photometric redshift residual. The data sample includes 251 ugriz light curves from the 3-season Sloan Digital Sky Survey-II, and 191 griz light curves from the Supernova Legacy Survey 3-year data release. We find that the simplest model of a wavelength independent (coherent) scatter is not adequate, and that to describe the data the intrinsic scatter model must have wavelength-dependent variations. We use Monte Carlo simulations to examine the standard approach of adding a coherent scatter term in quadrature to the distance-modulus uncertainty in order to bring the reduced chi2 to unity when fitting a Hubble diagram. If the light curve fits include model uncertainties with the c...

Kessler, Richard; Marriner, John; Betoule, Marc; Brinkmann, Jon; Cinabro, David; El-Hage, Patrick; Frieman, Joshua; Jha, Saurabh; Mosher, Jennifer; Schneider, Donald P

2012-01-01T23:59:59.000Z

229

On the Frequency Evolution of X-ray Brightness Oscillations During Thermonuclear X-ray Bursts: Evidence for Coherent Oscillations  

E-Print Network [OSTI]

We investigate the time dependence of the frequency of X-ray brightness oscillations during thermonuclear bursts from several neutron star low mass X-ray binaries. We find that the oscillation frequencies in the cooling tails of X-ray bursts from 4U 1702-429 and 4U 1728-34 are well described by an exponential "chirp" model. With this model we demonstrate that the pulse trains in the cooling tails of many bursts are highly phase coherent, having oscillation quality factors as high as Q ~ 4000. We use this model of the frequency evolution to search sensitively for significant power at the harmonics and first sub-harmonic of the 330 and 363 Hz signals in bursts from 4U 1702-429 and 4U 1728-34, respectively, but find not evidence for significant power at any harmonic or the sub-harmonic. We argue that the high coherence favors stellar rotation as the source of the oscillations. We briefly discuss the frequency evolution in terms of rotational motion of an angular momentum conserving thermonuclear shell. we discuss how the limits on harmonic content can be used to infer properties of the neutron star.

Tod E. Strohmayer; Craig B. Markwardt

1999-03-03T23:59:59.000Z

230

Bright Lights, Black Leather  

E-Print Network [OSTI]

?" The older man paused, smoothing his fingers over his mustache. "Mike Orgell," he said simply. Sonny froze at the mention of that name. Mike Orgell. Five months had passed since the last time he'd heard it spoken; hearing it again now was like reopening...'re lovers." "Yeah? So?" Sonny demanded. "Whats that got to do with Mike Orgell?" "You made your feelings known about Orgell, and Evan Freed... their sexual orientations." Martin held the detective's stare. "Your reaction to Henderson, to what he said...

LaSalle, R.

1995-01-01T23:59:59.000Z

231

BRIGHT 22 ?m EXCESS CANDIDATES FROM THE WISE ALL-SKY CATALOG AND THE HIPPARCOS MAIN CATALOG  

SciTech Connect (OSTI)

In this paper, we present a catalog that includes 141 bright candidates (?10.27 mag, V band) showing an excess of infrared (IR) at 22 ?m. Of these 141 candidates, 38 stars are known IR-excess stars or disks, 23 stars are double or multiple stars, and 4 are Be stars while the remaining more than 70 stars are identified as 22 ?m excess candidates in our work. The criterion for selecting candidates is K{sub s} [22]{sub ?m}. All these candidates are selected from the Wide-field Infrared Survey Explorer all-sky data cross-correlated with the Hipparcos main catalog and the likelihood-ratio technique is employed. Considering the effect of background, we introduce the IRAS 100 ?m level to exclude the high background. We also estimate the coincidence probability of these sources. In addition, we present the optical to mid-IR spectral energy distributions and optical images for all the candidates, and give the observed optical spectra of six stars with the National Astronomical Observatories, Chinese Academy of Sciences' 2.16 m telescope. To measure for the amount of dust around each star, the fractional luminosity is also provided. We also test whether our method of selecting IR-excess stars can be used to search for extra-solar planets; we cross-match our catalog with known IR-excess stars with planets but found no matches. Finally, we give the fraction of stars showing excess IR for different spectral types of main-sequence stars.

Wu, Chao-Jian; Wu, Hong; Lam, Man-I; Yang, Ming; Gao, Liang [National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China); Wen, Xiao-Qing [Key Laboratory of Optical Astronomy, National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012 (China); Li, Shuo [Department of Astronomy, Peking University, Beijing 100871 (China); Zhang, Tong-Jie [Department of Astronomy, Beijing Normal University, Beijing 100875 (China)

2013-10-01T23:59:59.000Z

232

INEX (integrated numerical experiment) simulations of the Los Alamos HIBAF (high-brightness accelerator free-electron laser) free-electron laser MOPA (master oscillator power amplifier) experiment  

SciTech Connect (OSTI)

We present results of Integrated Numerical Experiment (INEX) simulations of the performance of a 1-m untapered wiggler FEL oscillator driving a 2-m wiggler FEL amplifier for the new HIBAF (High-Brightness Accelerator Free-Electron Laser) facility at Los Alamos. INEX simulations utilize a numerically-generated electron micropulse, from ISIS/PARMELA calculations of the photoinjector/linac/beam transport system, in the 3-D FEL simulation code FELEX. 13 refs., 10 figs., 1 tab.

Goldstein, J.C.; Carlsten, B.E.; McVey, B.D.

1989-01-01T23:59:59.000Z

233

BRIGHT 'MERGER-NOVA' FROM THE REMNANT OF A NEUTRON STAR BINARY MERGER: A SIGNATURE OF A NEWLY BORN, MASSIVE, MILLISECOND MAGNETAR  

SciTech Connect (OSTI)

A massive millisecond magnetar may survive the merger of a neutron star (NS) binary, which would continuously power the merger ejecta. We develop a generic dynamic model for the merger ejecta with energy injection from the central magnetar. The ejecta emission (the {sup m}erger-nova{sup )} powered by the magnetar peaks in the UV band and the peak of the light curve, progressively shifts to an earlier epoch with increasing frequency. A magnetar-powered merger-nova could have an optical peak brightness comparable to a supernova, which is a few tens or hundreds times brighter than the radioactive-powered merger-novae (the so-called macro-nova or kilo-nova). On the other hand, such a merger-nova would peak earlier and have a significantly shorter duration than that of a supernova. An early collapse of the magnetar could suppress the brightness of the optical emission and shorten its duration. Such millisecond-magnetar-powered merger-novae may be detected from NS-NS merger events without an observed short gamma-ray burst, and could be a bright electromagnetic counterpart for gravitational wave bursts due to NS-NS mergers. If detected, it suggests that the merger leaves behind a massive NS, which has important implications for the equation-of-state of nuclear matter.

Yu, Yun-Wei [Institute of Astrophysics, Central China Normal University, Wuhan 430079 (China)] [Institute of Astrophysics, Central China Normal University, Wuhan 430079 (China); Zhang, Bing; Gao, He, E-mail: yuyw@mail.ccnu.edu.cn, E-mail: zhang@physics.unlv.edu [Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154 (United States)] [Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154 (United States)

2013-10-20T23:59:59.000Z

234

TESTING MODELS OF INTRINSIC BRIGHTNESS VARIATIONS IN TYPE Ia SUPERNOVAE AND THEIR IMPACT ON MEASURING COSMOLOGICAL PARAMETERS  

SciTech Connect (OSTI)

For spectroscopically confirmed Type Ia supernovae we evaluate models of intrinsic brightness variations with detailed data/Monte Carlo comparisons of the dispersion in the following quantities: Hubble-diagram scatter, color difference (B - V - c) between the true B - V color and the fitted color (c) from the SALT-II light curve model, and photometric redshift residual. The data sample includes 251 ugriz light curves from the three-season Sloan Digital Sky Survey-II and 191 griz light curves from the Supernova Legacy Survey 3 year data release. We find that the simplest model of a wavelength-independent (coherent) scatter is not adequate, and that to describe the data the intrinsic-scatter model must have wavelength-dependent variations resulting in a {approx}0.02 mag scatter in B - V - c. Relatively weak constraints are obtained on the nature of intrinsic scatter because a variety of different models can reasonably describe this photometric data sample. We use Monte Carlo simulations to examine the standard approach of adding a coherent-scatter term in quadrature to the distance-modulus uncertainty in order to bring the reduced {chi}{sup 2} to unity when fitting a Hubble diagram. If the light curve fits include model uncertainties with the correct wavelength dependence of the scatter, we find that this approach is valid and that the bias on the dark energy equation-of-state parameter w is much smaller ({approx}0.001) than current systematic uncertainties. However, incorrect model uncertainties can lead to a significant bias on the distance moduli, with up to {approx}0.05 mag redshift-dependent variation. This bias is roughly reduced in half after applying a Malmquist bias correction. For the recent SNLS3 cosmology results, we estimate that this effect introduces an additional systematic uncertainty on w of {approx}0.02, well below the total uncertainty. This uncertainty depends on the choice of viable scatter models and the choice of supernova (SN) samples, and thus this small w-uncertainty is not guaranteed in future cosmology results. For example, the w-uncertainty for SDSS+SNLS (dropping the nearby SNe) increases to {approx}0.04.

Kessler, Richard; Frieman, Joshua A. [Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637 (United States)] [Department of Astronomy and Astrophysics, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637 (United States); Guy, Julien; Betoule, Marc; El-Hage, Patrick [Laboratoire de Physique Nucleaire et des Hautes Energies, UPMC Univ. Paris 6, UPD Univ. Paris 7, CNRS IN2P3, 4 place Jussieu, F-75005 Paris (France)] [Laboratoire de Physique Nucleaire et des Hautes Energies, UPMC Univ. Paris 6, UPD Univ. Paris 7, CNRS IN2P3, 4 place Jussieu, F-75005 Paris (France); Marriner, John [Center for Particle Astrophysics, Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 (United States)] [Center for Particle Astrophysics, Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, IL 60510 (United States); Brinkmann, Jon [Apache Point Observatory, P.O. Box 59, Sunspot, NM 88349 (United States)] [Apache Point Observatory, P.O. Box 59, Sunspot, NM 88349 (United States); Cinabro, David [Department of Physics, Wayne State University, Detroit, MI 48202 (United States)] [Department of Physics, Wayne State University, Detroit, MI 48202 (United States); Jha, Saurabh [Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08854 (United States)] [Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08854 (United States); Mosher, Jennifer [Department of Physics and Astronomy, University of Pennsylvania, 203 South 33rd Street, Philadelphia, PA 19104 (United States)] [Department of Physics and Astronomy, University of Pennsylvania, 203 South 33rd Street, Philadelphia, PA 19104 (United States); Schneider, Donald P., E-mail: kessler@kicp.uchicago.edu [Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802 (United States)

2013-02-10T23:59:59.000Z

235

GALAXY HALO TRUNCATION AND GIANT ARC SURFACE BRIGHTNESS RECONSTRUCTION IN THE CLUSTER MACSJ1206.2-0847  

SciTech Connect (OSTI)

In this work, we analyze the mass distribution of MACSJ1206.2-0847, particularly focusing on the halo properties of its cluster members. The cluster appears relaxed in its X-ray emission, but has a significant amount of intracluster light that is not centrally concentrated, suggesting that galaxy-scale interactions are still ongoing despite the overall relaxed state. The cluster lenses 12 background galaxies into multiple images and one galaxy at z = 1.033 into a giant arc and its counterimage. The multiple image positions and the surface brightness (SFB) distribution of the arc, which is bent around several cluster members, are sensitive to the cluster galaxy halo properties. We model the cluster mass distribution with a Navarro-Frenk-White profile and the galaxy halos with two parameters for the mass normalization and the extent of a reference halo assuming scalings with their observed near-infrared light. We match the multiple image positions at an rms level of 0.''85 and can reconstruct the SFB distribution of the arc in several filters to a remarkable accuracy based on this cluster model. The length scale where the enclosed galaxy halo mass is best constrained is about 5 effective radii-a scale in between those accessible to dynamical and field strong-lensing mass estimates on the one hand and galaxy-galaxy weak-lensing results on the other hand. The velocity dispersion and halo size of a galaxy with m{sub 160W,AB} = 19.2 and M{sub B,Vega} = -20.7 are {sigma} = 150 km s{sup -1} and r Almost-Equal-To 26 {+-} 6 kpc, respectively, indicating that the halos of the cluster galaxies are tidally stripped. We also reconstruct the unlensed source, which is smaller by a factor of {approx}5.8 in area, demonstrating the increase in morphological information due to lensing. We conclude that this galaxy likely has star-forming spiral arms with a red (older) central component.

Eichner, Thomas; Seitz, Stella; Monna, Anna [Universitaets-Sternwarte Muenchen, Scheinerstr. 1, D-81679 Muenchen (Germany); Suyu, Sherry H. [Department of Physics, University of California, Santa Barbara, CA 93106 (United States); Halkola, Aleksi [Institute of Medical Engineering, University of Luebeck, Ratzeburger Allee 160 23562 Luebeck (Germany); Umetsu, Keiichi [Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan (China); Zitrin, Adi [Institut fuer Theoretische Astrophysik, ZAH, Albert-Ueberle-Strasse 2, D-69120 Heidelberg (Germany); Coe, Dan; Postman, Marc; Koekemoer, Anton; Bradley, Larry [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21208 (United States); Rosati, Piero [ESO-European Southern Observatory, D-85748 Garching bei Muenchen (Germany); Grillo, Claudio; Host, Ole [Dark Cosmology Centre, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, DK-2100 Copenhagen (Denmark); Balestra, Italo [Max-Planck-Institut fuer Extraterrestrische Physik, Giessenbachstrasse, D-85748 Garching (Germany); Zheng, Wei; Lemze, Doron [Department of Physics and Astronomy, The Johns Hopkins University, 3400 North Charles Street, Baltimore, MD 21218 (United States); Broadhurst, Tom [Department of Theoretical Physics, University of the Basque Country, P.O. Box 644, E-48080 Bilbao (Spain); Moustakas, Leonidas [Jet Propulsion Laboratory, California Institute of Technology, MS 169-327, Pasadena, CA 91109 (United States); Molino, Alberto [Instituto de Astrofisica de Andalucia (CSIC), C/Camino Bajo de Huetor 24, Granada E-18008 (Spain); and others

2013-09-10T23:59:59.000Z

236

The mystery of spectral breaks: Lyman continuum absorption by photon-photon pair production in the Fermi GeV spectra of bright blazars  

E-Print Network [OSTI]

We reanalyze Fermi/LAT gamma-ray spectra of bright blazars with a higher photon statistics than in previous works and with new Pass 7 data representation. In the spectra of the brightest blazar 3C 454.3 and possibly of 4C +21.35 we detect breaks at 5 GeV (in the rest frame) associated with the photon-photon pair production absorption by He II Lyman continuum (LyC). We also detect confident breaks at 20 GeV associated with hydrogen LyC both in the individual spectra and in the stacked redshift-corrected spectrum of several bright blazars. The detected breaks in the stacked spectra univocally prove that they are associated with atomic ultraviolet emission features of the quasar broad-line region (BLR). The dominance of the absorption by hydrogen Ly complex over He II, rather small detected optical depth, and the break energy consistent with the head-on collisions with LyC photons imply that the gamma-ray emission site is located within the BLR, but most of the BLR emission comes from a flat disk-like structure ...

Stern, Boris E

2014-01-01T23:59:59.000Z

237

Metal Abundances and Kinematics of Bright Metal-Poor Giants Selected from the LSE Survey: Implications for the Metal-Weak Thick Disk  

E-Print Network [OSTI]

We report medium-resolution (1-2 A) spectroscopy and broadband (UBV) photometry for a sample of 39 bright stars (the majority of which are likely to be giants) selected as metal-deficient candidates from an objective-prism survey concentrating on Galactic latitudes below |b| = 30 deg, the LSE survey of Drilling & Bergeron. Although the primary purpose of the LSE survey was to select OB stars (hence the concentration on low latitudes), the small number of bright metal-deficient giant candidates noted during this survey provide interesting information on the metal-weak thick disk (MWTD) population. The kinematics of the LSE giants indicate the presence of a rapidly rotating population, even at quite low metallicity. We consider the distribution of orbital eccentricity of the LSE giants as a function of [Fe/H], and conclude that the local fraction (i.e., within 1 kpc from the Sun) of metal-poor stars that might be associated with the MWTD is on the order of 30%-40% at abundances below [Fe/H] = -1.0. Contrary to recent analyses of previous (much larger) samples of non-kinematically selected metal-poor stars, we find that this relatively high fraction of local metal-poor stars associated with the MWTD may extend to metallicities below [Fe/H] = -1.6, much lower than had been considered before. We identify a subsample of 11 LSE stars that are very likely to be members of the MWTD, based on their derived kinematics; the lowest metallicity among these stars is [Fe/H] = -2.35. Implications of these results for the origin of the MWTD and for the formation of the Galaxy are considered. (abridged)

Timothy C. Beers; John S. Drilling; Silvia Rossi; Masashi Chiba; Jaehyon Rhee; Birgit Fuhrmeister; John E. Norris; Ted von Hippel

2002-04-19T23:59:59.000Z

238

CARMA SURVEY TOWARD INFRARED-BRIGHT NEARBY GALAXIES (STING). III. THE DEPENDENCE OF ATOMIC AND MOLECULAR GAS SURFACE DENSITIES ON GALAXY PROPERTIES  

SciTech Connect (OSTI)

We investigate the correlation between CO and H I emission in 18 nearby galaxies from the CARMA Survey Toward IR-Bright Nearby Galaxies (STING) at sub-kpc and kpc scales. Our sample, spanning a wide range in stellar mass and metallicity, reveals evidence for a metallicity dependence of the H I column density measured in regions exhibiting CO emission. Such a dependence is predicted by the equilibrium model of McKee and Krumholz, which balances H{sub 2} formation and dissociation. The observed H I column density is often smaller than predicted by the model, an effect we attribute to unresolved clumping, although values close to the model prediction are also seen. We do not observe H I column densities much larger than predicted, as might be expected were there a diffuse H I component that did not contribute to H{sub 2} shielding. We also find that the H{sub 2} column density inferred from CO correlates strongly with the stellar surface density, suggesting that the local supply of molecular gas is tightly regulated by the stellar disk.

Wong, Tony; Xue, Rui [Department of Astronomy, University of Illinois, Urbana, IL 61801 (United States)] [Department of Astronomy, University of Illinois, Urbana, IL 61801 (United States); Bolatto, Alberto D.; Fisher, David B.; Vogel, Stuart N. [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States)] [Department of Astronomy, University of Maryland, College Park, MD 20742 (United States); Leroy, Adam K. [National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States)] [National Radio Astronomy Observatory, Charlottesville, VA 22903 (United States); Blitz, Leo [Department of Astronomy, University of California, Berkeley, CA 94720 (United States)] [Department of Astronomy, University of California, Berkeley, CA 94720 (United States); Rosolowsky, Erik [Department of Physics, University of Alberta, Edmonton, AB T6G 2E1 (Canada)] [Department of Physics, University of Alberta, Edmonton, AB T6G 2E1 (Canada); Bigiel, Frank [Institut fr theoretische Astrophysik, Zentrum fr Astronomie der Universitt Heidelberg, Albert-Ueberle Str. 2, D-69120 Heidelberg (Germany)] [Institut fr theoretische Astrophysik, Zentrum fr Astronomie der Universitt Heidelberg, Albert-Ueberle Str. 2, D-69120 Heidelberg (Germany); Ott, Jrgen [National Radio Astronomy Observatory, Socorro, NM 87801 (United States)] [National Radio Astronomy Observatory, Socorro, NM 87801 (United States); Rahman, Nurur [Department of Physics, C1 Lab 140, University of Johannesburg, P.O. Box 524, Auckland Park, Johannesburg 2006 (South Africa)] [Department of Physics, C1 Lab 140, University of Johannesburg, P.O. Box 524, Auckland Park, Johannesburg 2006 (South Africa); Walter, Fabian [Max-Planck-Institut fr Astronomie, Konigstuhl 17, D-69117 Heidelberg (Germany)] [Max-Planck-Institut fr Astronomie, Konigstuhl 17, D-69117 Heidelberg (Germany)

2013-11-01T23:59:59.000Z

239

RESONANCES IN THE PHOTOIONIZATION CROSS SECTIONS OF ATOMIC NITROGEN SHAPE THE FAR-ULTRAVIOLET SPECTRUM OF THE BRIGHT STAR IN 47 TUCANAE  

SciTech Connect (OSTI)

The far-ultraviolet spectrum of the Bright Star (B8 III) in 47 Tuc (NGC 104) shows a remarkable pattern: it is well fit by local thermodynamic equilibrium models at wavelengths longer than Ly{beta}, but at shorter wavelengths it is fainter than the models by a factor of two. A spectrum of this star obtained with the Far Ultraviolet Spectroscopic Explorer shows broad absorption troughs with sharp edges at 995 and 1010 A and a deep absorption feature at 1072 A; none of which are predicted by the models. We find that these features are caused by resonances in the photoionization cross sections of the first and second excited states of atomic nitrogen (2s {sup 2} 2p {sup 3} {sup 2} D {sup 0} and {sup 2} P {sup 0}). Using cross sections from the Opacity Project, we can reproduce these features, but only if we use the cross sections at their full resolution, rather than the resonance-averaged cross sections usually employed to model stellar atmospheres. These resonances are strongest in stellar atmospheres with enhanced nitrogen and depleted carbon abundances, a pattern typical of post-asymptotic giant branch stars.

Dixon, William V.; Chayer, Pierre, E-mail: dixon@stsci.edu, E-mail: chayer@stsci.edu [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States)

2013-08-10T23:59:59.000Z

240

Resonances in the Photoionization Cross Sections of Atomic Nitrogen Shape the Far-Ultraviolet Spectrum of the Bright Star in 47 Tucanae  

E-Print Network [OSTI]

The far-ultraviolet (FUV) spectrum of the Bright Star (B8 III) in 47 Tuc (NGC 104) shows a remarkable pattern: it is well fit by LTE models at wavelengths longer than Lyman beta, but at shorter wavelengths it is fainter than the models by a factor of two. A spectrum of this star obtained with the Far Ultraviolet Spectroscopic Explorer (FUSE) shows broad absorption troughs with sharp edges at 995 and 1010 A and a deep absorption feature at 1072 A, none of which are predicted by the models. We find that these features are caused by resonances in the photoionization cross sections of the first and second excited states of atomic nitrogen (2s$^2$ 2p$^3$ $^2$D$^0$ and $^2$P$^0$). Using cross sections from the Opacity Project, we can reproduce these features, but only if we use the cross sections at their full resolution, rather than the resonance-averaged cross sections usually employed to model stellar atmospheres. These resonances are strongest in stellar atmospheres with enhanced nitrogen and depleted carbon ab...

Dixon, William V

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "all-stars shine bright" 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

THEBLACKMARBLE In daylight our big blue marble is all land, oceans and  

E-Print Network [OSTI]

THEBLACKMARBLE #12;In daylight our big blue marble is all land, oceans and clouds. But the night ­ is electric. These views of Earth's city lights show brightly shining cities, connected by illuminated webs at night is a composite of data acquired over nine days in April and thirteen days in October 2012

242

Astronomy: Bright Future for Infrared  

Science Journals Connector (OSTI)

... ALTHOUGH the prediction of what is likely to happen in astronomy in the future is a hazardous undertaking just now, it seems increasingly obvious in ... is a hazardous undertaking just now, it seems increasingly obvious in astronomical circles that infrared astronomy is going to be an important field of investigation during the next few years. ...

Our Astronomy Correspondent

1968-09-21T23:59:59.000Z

243

Bright Ideas in Solar Energy  

E-Print Network [OSTI]

J. (2014). New solar cell technology captures high-energyarticles/new-solar-cell- technology-captures-high-energy-solar concentrator surfaces. International Journal of Precision Technology,

Melville, Jo

2014-01-01T23:59:59.000Z

244

Bright Prospects of Green Jobs  

Science Journals Connector (OSTI)

After 30 years of rapid growth, China is faced with many constraints in population, resources and environment. Therefore, the concepts of sustainable, green, scientific and inclusive development are widely recogn...

Desheng Lai

2014-01-01T23:59:59.000Z

245

Bright Ideas in Solar Energy  

E-Print Network [OSTI]

Molten Nitrate Salt for Solar Energy Storage. Retrieved fromto energy storage problems in solar energy. Hydrogen issalt energy storage, in a project known as Solar Two. In a

Melville, Jo

2014-01-01T23:59:59.000Z

246

Bright Ideas in Solar Energy  

E-Print Network [OSTI]

Molten Nitrate Salt for Solar Energy Storage. Retrieved froma good solution to energy storage problems in solar energy.solar energy must have an efficient means of energy storage

Melville, Jo

2014-01-01T23:59:59.000Z

247

Bright Ideas in Solar Energy  

E-Print Network [OSTI]

new approaches to solar energy production (Krisch, 2014).energy production. The most notable is simply that existing solarproduction of energy-rich hydrogen provides a good solution to energy storage problems in solar

Melville, Jo

2014-01-01T23:59:59.000Z

248

Bright Ideas in Solar Energy  

E-Print Network [OSTI]

J. (2014). New solar cell technology captures high-energyarticles/new-solar-cell- technology-captures-high-energy-

Melville, Jo

2014-01-01T23:59:59.000Z

249

Bright Ideas in Solar Energy  

E-Print Network [OSTI]

wind, biofuels, and hydroelectric allegedly defended hiscapricious and, like hydroelectric energy, is hugely limitedof power as fossil-fuel or hydroelectric plants. The largest

Melville, Jo

2014-01-01T23:59:59.000Z

250

Bright Ideas in Solar Energy  

E-Print Network [OSTI]

breakthroughs that solar photovoltaic energy has achieved inIn 1993, the solar-photovoltaic energy capacity was a merecrystalline photovoltaic notion of turning energy from the

Melville, Jo

2014-01-01T23:59:59.000Z

251

Bright Ideas in Solar Energy  

E-Print Network [OSTI]

output of 300 megawatts, though Solar Thermal Energy (STE).Solar Thermal Energy is solar it is expected to reach 550This class of solar thermal energy collection, known as a

Melville, Jo

2014-01-01T23:59:59.000Z

252

Bright prospects for lighting retrofits  

SciTech Connect (OSTI)

Great potential for energy savings can be found in the alleys, hallways and stairwells of multifamily buildings, but this potential is not always easy to realize. This article discusses the solution to common problems, retrofitting mistakes, retrofitting for savings, replacements for incandescent bulbs, better exit lights. 1 fig., 1 tab.

Hasterok, L. [Wisconsin Energy Conservation Corp., Madison, WI (United States)

1995-09-01T23:59:59.000Z

253

Bright Ideas in Solar Energy  

E-Print Network [OSTI]

Molten Nitrate Salt for Solar Energy Storage. Retrieved fromNew Ways to Store Solar Energy. Retrieved from http://new-ways-to-store-solar-energy-16407404 Lenert, Andrej,

Melville, Jo

2014-01-01T23:59:59.000Z

254

Wavy strings: Black or bright?  

SciTech Connect (OSTI)

Recent developments in string theory have brought forth considerable interest in time-dependent hair on extended objects. This novel new hair is typically characterized by a wave profile along the horizon and angular momentum quantum numbers l,m in the transverse space. In this work, we present an extensive treatment of such oscillating black objects, focusing on their geometric properties. We first give a theorem of purely geometric nature, stating that such wavy hair cannot be detected by any scalar invariant built out of the curvature and/or matter fields. However, we show that the tidal forces detected by an infalling observer diverge at the {open_quotes}horizon{close_quotes} of a black string superposed with a vibration in any mode with l{ge}1. The same argument applied to longitudinal (l=0) waves detects only finite leading-order tidal forces. We also provide an example with a manifestly smooth metric, proving that at least a certain class of these longitudinal waves have regular horizons. {copyright} {ital 1997} {ital The American Physical Society}

Kaloper, N. [Department of Physics, University of Waterloo, Waterloo, Ontario, N3L 3G1 (CANADA)] [Department of Physics, University of Waterloo, Waterloo, Ontario, N3L 3G1 (CANADA); Myers, R.C.; Roussel, H. [Department of Physics, McGill University, Montreal, Quebec, H3A 2T8 (CANADA)] [Department of Physics, McGill University, Montreal, Quebec, H3A 2T8 (CANADA)

1997-06-01T23:59:59.000Z

255

HST photometry of dwarf elliptical galaxies in Coma, and an explanation for the alleged structural dichotomy between dwarf and bright elliptical galaxies  

E-Print Network [OSTI]

We have analyzed archival HST F606W images of 18 dwarf elliptical (dE) galaxy candidates in the Coma Cluster. We model the full radial extent of their light-profiles by simultaneously fitting a PSF-convolved Sersic R^(1/n) model and, when necessary, either a central point-source or a central PSF-convolved Gaussian. The luminosities of the central component L_nuc scale with the host galaxy luminosity L_gal such that L_nuc = 10^(4.76 +/- 0.10)*(L_gal/10^7)^(0.87 +/- 0.26). The underlying host galaxies display systematic departures from an exponential model that are correlated with the model-independent host galaxy luminosity and are not due to biasing from the nuclear component. The Pearson correlation coefficient between log(n) and central galaxy surface brightness mu_0 (excluding the flux from extraneous central components) is -0.83 at a significance level of 99.99%. The Pearson correlation coefficient between the logarithm of the Sersic index `n' and the host galaxy magnitude is -0.77 at a significance of 99.9%. We explain the observed relationship between dE galaxy luminosity and inner logarithmic profile slope (gamma-prime) as a by-product of the correlation between luminosity and Sersic index n. Including, from the literature, an additional 232 dE and E galaxies spanning 10 mag in absolute magnitude (M), the dE galaxies are shown to display a continuous sequence with the brighter E galaxies such that mu_0 brightens linearly with M until core formation causes the most luminous (M_B _e) diagram, and the _e-log(R_e) diagram have nothing to do with core formation, and are in fact expected from the continuous and linear relation between M and mu_0 and M and log(n).

Alister W. Graham; Rafael Guzman

2003-03-17T23:59:59.000Z

256

The Oxford-Dartmouth Thirty Degree Survey II: Clustering of Bright Lyman Break Galaxies - Strong Luminosity Dependent Bias at z=4  

E-Print Network [OSTI]

We present measurements of the clustering properties of bright ($L>L_{*}$) z$\\sim$4 Lyman Break Galaxies (LBGs) selected from the Oxford-Dartmouth Thirty Degree Survey (ODT). We describe techniques used to select and evaluate our candidates and calculate the angular correlation function which we find best fitted by a power law, $\\omega(\\theta)=A_{w}\\theta^{-\\beta}$ with $A_{w}=15.4$ (with $\\theta$ in arcseconds), using a constrained slope of $\\beta=0.8$. Using a redshift distribution consistent with photometric models, we deproject this correlation function and find a comoving $r_{0}=11.4_{-1.9}^{+1.7}$ h$_{100}^{-1}$ Mpc in a $\\Omega_m=0.3$ flat $\\Lambda$ cosmology for $i_{AB}\\leq24.5$. This corresponds to a linear bias value of $b=8.1_{-2.6}^{+2.0}$ (assuming $\\sigma_{8}=0.9$). These data show a significantly larger $r_{0}$ and $b$ than previous studies at $z\\sim4$. We interpret this as evidence that the brightest LBGs have a larger bias than fainter ones, indicating a strong luminosity dependence for the measured bias of an LBG sample. Comparing this against recent results in the literature at fainter (sub-$L_{*}$) limiting magnitudes, and with simple models describing the relationship between LBGs and dark matter haloes, we discuss the implications on the implied environments and nature of LBGs. It seems that the brightest LBGs (in contrast with the majority sub-$L_{*}$ population), have clustering properties, and host dark matter halo masses, that are consistent with them being progenitors of the most massive galaxies today.

Paul D. Allen; Leonidas A. Moustakas; Gavin Dalton; Emily MacDonald; Chris Blake; Lee Clewley; Catherine Heymans; Gary Wegner

2005-05-02T23:59:59.000Z

257

Weatherization Shines in California: Weatherization Assistance Close-Up Fact Sheet  

SciTech Connect (OSTI)

California demonstrates its commitment to technology and efficiency through the Weatherization Program. Weatherization uses advanced technologies and techniques to reduce energy costs for low-income families by increasing the energy efficiency of their homes.

D& R International

2001-10-10T23:59:59.000Z

258

Letting The Sun Shine On Solar Costs: An Empirical Investigation Of Photovoltaic Cost Trends In California  

E-Print Network [OSTI]

INVESTIGATION OF PHOTOVOLTAIC COST TRENDS IN CALIFORNIA RyanInvestigation of Photovoltaic Cost Trends in California,cost of customer-sited, grid-connected solar photovoltaic (

Wiser, Ryan; Bolinger, Mark; Cappers, Peter; Margolis, Robert

2006-01-01T23:59:59.000Z

259

42.22 n, 83.75 w by Dan Shine  

E-Print Network [OSTI]

- sity of Michigan group dedicated to computer hacking. But this isn't the rise of the next Anonymous economic and national security challenges we face as a nation." It's computer hacking. So some might be surprised to hear hacking is alive and well at the University of Michigan. In fact, there's even a new

Michigan, University of

260

Argonne Researchers Shine "Light" on Origins of Wind Turbine Bearing Failures  

Broader source: Energy.gov [DOE]

Researchers at DOE's Argonne National Laboratory are investigating the root cause of failures to wind turbine drivetrain components, such as bearings and gears.

Note: This page contains sample records for the topic "all-stars shine bright" 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

Sir --Your Editorial "Time for Japan to shine?" (Nature 427, 763; 2004) clearly  

E-Print Network [OSTI]

that the United States and Japan refuse a direct and objective comparison of the technical assets of the European the necessity of building ITER, formerly the International Thermonuclear Experimental Reactor. But I must say of the JT-60 tokamak to achieve critical science on the way to Demo, the engineering prototype reactor

262

Letting The Sun Shine On Solar Costs: An Empirical Investigation Of Photovoltaic Cost Trends In California  

E-Print Network [OSTI]

installations. This California Solar Initiative has the2. CALIFORNIAS SOLAR PROGRAMS Californias PV market isramifications, both for Californias new solar programs and

Wiser, Ryan; Bolinger, Mark; Cappers, Peter; Margolis, Robert

2006-01-01T23:59:59.000Z

263

Shining Stars of Solar: Meet Three SunShot Postdoctoral Award...  

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

was on integrated devices for solar fuels. Solar fuels devices are akin to photovoltaics (solar cells), except instead of light being converted to electricity in an external...

264

Shining New Light on Protein Structure and Function thru Synchrotron Radiation Circular Dichroism (SRCD) Spectroscopy  

SciTech Connect (OSTI)

Circular dichroism (CD) spectroscopy has been employed for more than 50 years for the study of the structure and dynamics of proteins. It is now a workhorse of structural biology, finding applications in the determination of protein secondary structures, monitoring and deciphering protein folding, examining macromolecular interactions, and defining and quantitating protein-ligand binding. For the most part, CD studies have used laboratory-based instruments to measure electronic transitions in the far (190-250 nm), near ultraviolet (UV) (250-300 nm) and visible (> 400 nm) wavelength ranges, which have enabled studies of polypeptide backbones, aromatic amino acids and colored chromophores, respectively. Additional transitions exist at lower wavelengths in the vacuum ultraviolet (VUV) region (<190 nm); however, these transitions tend to be inaccessible to conventional CD instruments, due to the low intensity of their Xenon arc lamp light sources at wavelengths below190 nm. In 1980, the first synchrotron-based CD instruments were constructed, which took advantage of the high photon flux available from synchrotron light sources at these wavelengths. However, the technique of synchrotron radiation circular dichroism (SRCD) did not really take off until enabling studies had been done to show that additional data were obtainable for proteins in the VUV region, that these data were readily accessible with modern beamlines, and most importantly, that new applications of these data existed in structural molecular biology.

Wallace,B.

2005-01-01T23:59:59.000Z

265

A Shining Light in the Darkness for the Treatment of Pancreatic Neuroendocrine Tumors  

Science Journals Connector (OSTI)

...MC044h, a phase II trial of sorafenib in patients (pts) with metastatic neuroendocrine tumors (NET): a phase II consortium (P2C) study. Proc Am Soc Clin Oncol 2007;25:4504. 35. Castellano, D , Capdevila, J, Salazar, R, Sastre, J, Alonso...

Jaume Capdevila and Josep Tabernero

2011-08-01T23:59:59.000Z

266

Why Disks Shine: the Transport of Angular Momentum in Hot, Thin Disks  

E-Print Network [OSTI]

I review recent work on the radial transport of angular momentum in ionized, Keplerian accretion disks. Proposed mechanisms include hydrodynamic and MHD local instabilities and long range effects mediated by wave transport. The most promising models incorporate the Velikhov-Chandrasekhar instability, caused by an instability of the magnetic field embedded in a differentially rotating disk. This has the important feature that the induced turbulent motions necessarily transport angular momentum outward. By contrast, convective modes may transport angular momentum in either direction. Combining the magnetic field instability with an $\\alpha-\\Omega$ dynamo driven by internal waves leads to a model in which the dimensionless viscosity scales as $(H/r)^{4/3}$. However, this model has a phenomenology which is quite different from the $\\alpha$ disk model. For example, an active disk implies some source of excitation for the internal waves. In binary systems with a mass ratio of order unity the most likely exciting mechanism is a parametric instability due to tidal forces. This implies that in systems where the accretion stream is intermittent, like MV Lyrae or TT Ari, epochs when the mass flow is absent or very small will be epochs in which the disk shrinks and becomes relatively inactive and dark. This model also implies that forced vertical mixing is important, even in convectively stable disks. I discuss various observational tests of this model and the focus of current theoretical work.

E. T. Vishniac

1993-09-28T23:59:59.000Z

267

EECBG Success Story: Shining Energy-Saving LEDs on Utah Starry Nights  

Broader source: Energy.gov [DOE]

Thanks to an Energy Efficiency and Conservation Block Grant (EECBG), Utah is replacing streetlights with efficient LEDs across 14 rural communities. About 2,500 streetlights will be replaced and could save the town 20% to 50% on electricity bills. Learn more.

268

THE LBT BOOeTES FIELD SURVEY. I. THE REST-FRAME ULTRAVIOLET AND NEAR-INFRARED LUMINOSITY FUNCTIONS AND CLUSTERING OF BRIGHT LYMAN BREAK GALAXIES AT Z {approx} 3  

SciTech Connect (OSTI)

We present a deep LBT/LBC U{sub spec}-band imaging survey (9 deg{sup 2}) covering the NOAO Booetes field. A total of 14,485 Lyman break galaxies (LBGs) at z {approx} 3 are selected, which are used to measure the rest-frame UV luminosity function (LF). The large sample size and survey area reduce the LF uncertainties due to Poisson statistics and cosmic variance by {>=}3 compared to previous studies. At the bright end, the LF shows excess power compared to the best-fit Schechter function, which can be attributed to the contribution of z {approx} 3 quasars. We compute the rest-frame near-infrared LF and stellar mass function (SMF) of z {approx} 3 LBGs based on the R-band and [4.5 {mu}m]-band flux relation. We investigate the evolution of the UV LFs and SMFs between z {approx} 7 and z {approx} 3, which supports a rising star formation history in the LBGs. We study the spatial correlation function of two bright LBG samples and estimate their average host halo mass. We find a tight relation between the host halo mass and the galaxy star formation rate (SFR), which follows the trend predicted by the baryonic accretion rate onto the halo, suggesting that the star formation in LBGs is fueled by baryonic accretion through the cosmic web. By comparing the SFRs with the total baryonic accretion rates, we find that cosmic star formation efficiency is about 5%-20% and it does not evolve significantly with redshift, halo mass, or galaxy luminosity.

Bian Fuyan; Fan Xiaohui; Jiang Linhua; McGreer, Ian; Dave, Romeel [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Dey, Arjun [National Optical Astronomy Observatory, 950 North Cherry Avenue, Tucson, AZ 85719 (United States); Green, Richard F. [Large Binocular Telescope Observatory and Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States); Maiolino, Roberto [Cavendish Laboratory, University of Cambridge, 19 J. J. Thomson Ave., Cambridge CB3 0HE (United Kingdom); Walter, Fabian [Max-Planck-Institut fuer Astronomie, Koenigstuhl 17, D-69117 Heidelberg (Germany); Lee, Kyoung-Soo [Department of Physics, Purdue University, West Lafayette, IN 47906 (United States)

2013-09-01T23:59:59.000Z

269

PublicationsmailagreementNo.40014024 Bright minds and  

E-Print Network [OSTI]

Microfluidics and Nanofluid- ics, describes the focus of his research as "plumbing, but not on the conventional

Victoria, University of

270

PublicationsmailagreementNo.40014024 Bright minds and  

E-Print Network [OSTI]

Nt or former uVic faculty members who are fellows of the royal society of caNada SEPTEMBER 2010 The University In August the Canada Green Building Council recognized UVic's Social Sciences and Mathematics Building, opened in 2008, with gold-level certification in its Leadership in Energy and Environmental Design (LEED

Pedersen, Tom

271

Amateur Science--Strong Tradition, Bright Future  

Science Journals Connector (OSTI)

...and study transient solar eclipse phenomena...Vicki's attempt to detect solar x-ray flares with a...amateurs observe the solar system and beyond, many...scientists, including beetle collector Morvan and Inca researcher...of footprint-bearing slabs on 240 trips along...

Forrest M. Mims III

1999-04-02T23:59:59.000Z

272

Bright and dark sides of computational intelligence  

E-Print Network [OSTI]

positive and negative values and the resulted neuron excitation net is calculated as a sum of products mapping and both systems internally operate within a limited signal range between zero and one. In general of incoming signals multiplied by weights: xw=net ii n =1i (1) k net out netk-+1 1 =f(net)=out exp Fig. 2

Wilamowski, Bogdan Maciej

273

Sustainable > DI BrightGreen January 2010  

E-Print Network [OSTI]

Management > Intelligent Buildings > IT Systems > Plug-in and Electric Vehicles > Smart Grids and Meters Heat and Power Plants > District Heating and Cooling > Energy Efficient Building Materials > Energy > Heat Pumps > Industrial Equipment and Processes > Lighting > Low-Energy Water Supply > Material

274

Bright Center of the Universe Issue 8  

E-Print Network [OSTI]

Threepio's weight already?" "Well, I think they can only manage so much when they work together. Fierell is a very good Jedi tutor but even she seemed a little taken aback. Han?" "Mmm?" The sound was muffled as he muzzled at her throat. "You know...

Multiple Contributors

1998-01-01T23:59:59.000Z

275

Bright future for liquid electrolyte solar cells?  

Science Journals Connector (OSTI)

... development into a technology that could rival the more familiar solid-state p-n junction solar ...solarcells ...

A. Hamnett; S. Dennison

1982-12-23T23:59:59.000Z

276

Technical Assistance Application Bright Schools Program  

E-Print Network [OSTI]

Assistance? If yes, please describe: Expected project start date: Expected project completion date: #12 knowledge that the data in this application are correct and complete. Authorized Representative* NameAllister Executive Director Robert Oglesby http://www.energy.ca.gov/efficiency/financing/index.html #12;

277

World Oil and Gas Picture Bright  

Science Journals Connector (OSTI)

The world's hydrocarbon energy picture is rosy and promises to shape up even better in coming years. ... World oil reserves may eventually hit 500 billion metric tons, more than 10 times those estimated for the end of 1962, according to Prof. E. H. A. Bentz. ...

1962-11-26T23:59:59.000Z

278

Sandia National Laboratories: BrightSource  

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

Doppler Velocimeter EC Top Publications A Comparison of Platform Options for Deep-water Floating Offshore Vertical Axis Wind Turbines: An Initial Study Nonlinear Time-Domain...

279

NATURE|VOL427|26FEBRUARY2004|www.nature.com/nature 763 Time for Japan to shine?  

E-Print Network [OSTI]

ScottishHighlands.AndpeasantsinChina and Africa can tend to their own energy needs by burning organic manureinbiodegradableovens. None sought a larger machine that would hold burning plasma for a sustained period, so they can study its-level radioactive waste and much less lower-level waste than fission. ITER's design phase was nonetheless completed

280

Searching for life where the sun don't shine : explorations to the seafloors of Earth and Europa  

E-Print Network [OSTI]

Hydrothermal vents on Earth's seafloor host entire ecosystems that live off energy from chemosynthesis rather than photosynthesis. This energy process uses chemical reactions between metals and hot gases from inside Earth's ...

Fitzpatrick, Garret R

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "all-stars shine bright" 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

Shining Stars of Solar: Meet Three SunShot Postdoctoral Award Recipients Who Are Making a Difference  

Office of Energy Efficiency and Renewable Energy (EERE)

From advancing solar technologies, to breaking down market barriers for wide-scale deployment of renewable systems, the Office of Energy Efficiency and Renewable Energy's Postdoctoral Research Award Program provides Americas best and brightest an opportunity to solve major energy challenges. Read about the experiences of three recent participants and find out how you can apply to the program.

282

Desert Sunlight is Shining Example of How DOE Loan Guarantees Helped Launch Utility-scale PV Solar Market  

Broader source: Energy.gov [DOE]

LPO helped finance the first five utility-scale PV projects larger than 100 MW in the U.S. With Desert Sunlight now fully operational, all five projects are online, generating clean electricity and repaying loans. The initial investments made by LPO helped build a market that subsequently financed an additional 17 projects larger than 100 MW without help from the Department.

283

News Item  

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

Combinatorial Nanoscience Shines in Pure Colors Combinatorial Nanoscience Shines in Pure Colors Green/red purity vs. total intensity, observed in the various lanthanide ion combinations. The Molecular Foundry's Delia Milliron and colleagues have employed a powerful combinatorial approach to synthesize nanocrystals that glow in bright, pure colors when excited with near infrared light. - a process known as upconversion. These nanocrystals may allow for biological imaging with less harmful radiation than current methods, and can be more easily tracked and quantified due to their single color emission. Milliron's team used a wide-sweeping approach to identify promising lanthanide ion combinations, using the automatic synthesis robot, WANDA, able to perform 96 different reactions in parallel. Ultimately four

284

Growing Cutting-edge X-ray Optics  

SciTech Connect (OSTI)

Ever imagined that an Xbox controller could help open a window into a world spanning just one billionth of a meter? Brookhaven Lab's Ray Conley grows cutting-edge optics called multilayer Laue lenses (MLL) one atomic layer at a time to focus high-energy x-rays to within a single nanometer. To achieve this focusing feat, Ray uses a massive, custom-built atomic deposition device, an array of computers, and a trusty Xbox controller. These lenses will be deployed at the Lab's National Synchrotron Light Source II, due to begin shining super-bright light on pressing scientific puzzles in 2015

Ray Conley

2012-11-30T23:59:59.000Z

285

SUSTAINABLE AND HOLISTIC INTEGRATION OF ENERGY STORAGE AND SOLAR...  

Office of Environmental Management (EM)

SUSTAINABLE AND HOLISTIC INTEGRATION OF ENERGY STORAGE AND SOLAR PV (SHINES) SUSTAINABLE AND HOLISTIC INTEGRATION OF ENERGY STORAGE AND SOLAR PV (SHINES) Funding Number:...

286

Success Stories: Quantum Dots  

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

Quantum Dots Outshine the Competition for Biomedical Assays Quantum Dots Outshine the Competition for Biomedical Assays Quantum Dots (Qdots), nano-scale semiconductor crystals that emit a range of bright colors when excited by a light source such as a laser, are shining brightly these days. The Berkeley Lab developed technology has been licensed by Quantum Dot Corporation and is being used as fluorescence probes for biomedical assays. The technology just won an R & D 100 Award and Quantum Dot Corporation was named by Fortune magazine as one of 2004's "Cool Companies." Science honored the technology as one of the Top 10 Breakthroughs of the Year in 2003, and Nanotechnology Now named Quantum Dots as the Best Nanotech Product in 2003, among other honors. Quantum Dot Corporation (QDC) is a 1998 start-up biotechnology company

287

PROGRESS AND FUTURE DIRECTIONS IN BRIGHTNESS ELECTRON BEAM SOURCES...  

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

structure of the particles (e - e + , e - p colliders). The quality of X-rays production improved dramatically only after the electron accelerators were introduced. The...

288

Department Announces Loan Guarantee for BrightSource Energy Inc...  

Energy Savers [EERE]

road. Both of California's senators weighed in: "This is the Energy Department's first solar generation loan in California and I hope it will be followed by many more. I believe...

289

Bright and dark helices of light Ole Steuernagel  

E-Print Network [OSTI]

. A: Pure Appl. Opt. 1, 750­768 (1999). 6. J. Leach, S. Keen, M. J. Padgett, C. Saunter, and G. D. Staliunas, "Vortex Creation in Bose-Einstein Condensates by Diffraction on a Helical Light Grating," http anisotropic media," Phys. Rev. Lett. 96, 163905 (2006). 19. J. Leach, M. R. Dennis, J. Courtial, and M. J

Kaye, Paul

290

On the Robustness of Cool Disc Components in Bright ULXs  

E-Print Network [OSTI]

In this letter, we comment on the robustness of putative cool (kT ~ 0.2 keV) accretion disc components in the X-ray spectra of the most luminous (L ~ 10^40 erg/s) ultra-luminous X-ray sources (ULXs) in nearby normal galaxies. When compared to stellar-mass black holes, the low disc temperatures observed in some ULXs may imply intermediate-mass black hole primaries. Recent work has claimed that such soft excesses are unlikely to be actual disc components, based on the lack of variability in these components, and in the overall source flux. Other work has proposed that alternative phenomenological models, and complex Comptonisation models, rule-out cool disc components in ULX spectra. An inspection of the literature on Galactic stellar-mass black holes and black hole candidates demonstrates that the flux behaviours seen in specific ULXs are consistent with phenomena observed in well-known Galactic X-ray binaries. Applying Comptonisation models to simulated disc blackbody plus power-law spectra shows that at the sensitivity achieved in even the best ULX spectra, Comptonisation fits are highly model-dependent, and do not yield meaningful constraints on the accretion flow. In contrast, the need for a soft, thermal component does not appear to be model-dependent. As we have previously noted, soft thermal components in ULX spectra may not represent accretion discs, but present alternatives to this interpretation are not robust.

J. M. Miller; A. C. Fabian; M. C. Miller

2005-12-22T23:59:59.000Z

291

On the relation between zenith sky brightness and horizontal illuminance  

Science Journals Connector (OSTI)

......and also shortened forms for the optical air masses M and M at zenith distances z and...used as an approximation to the optical air mass when zenith angles are below 80. For...atmospheric constituents, such as aerosols or air molecules (McCartney 1977). Introducing......

M. Kocifaj; Th. Posch; H. A. Solano Lamphar

2015-01-01T23:59:59.000Z

292

A statistical study of bright spot reflection parameters  

E-Print Network [OSTI]

coefficient as a function of frequency for three different gas saturations Figure 3 - Extraction of seismic properties plot Figure 4 - Base map of the seismic data set. Figure 5 - Seismic 'line A. Figure 6 - Seismic line B. Figure 7 - Seismic data from... measurements obtained from marker horizon D - seismic line A . 60 Figure 24 - The mean value data obtained from horizon D seismic line A. . . . . . . . . . . . . . . . 61 Figure 25 - Variance data obtained from horizon D - seismic line...

Godwin, David Lee

2012-06-07T23:59:59.000Z

293

Supernovae of the Same Brightness, Cut From Vastly Different...  

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

that the progenitor system of a Type 1a supernova, called PTF 11kx, contains a red giant star. They also show that the system previously underwent at least one much...

294

Cree Sets New Benchmarks for LED Efficacy and Brightness  

Broader source: Energy.gov [DOE]

Cree has successfully created a cool white LED prototype that delivers 107 lm/W at 350mA. This achievement builds on the Cree EZBright LED chip platform, developed in part with prior funding support from DOE. Cree made the prototype LED under their DOE project focused on developing LED chips incorporating photonic crystal elements for improved light extraction and novel package technology for higher down-conversion efficiency compared to conventional LEDs. Based on a 1 millimeter-square chip, the new prototype LED produces white light with a CCT of 5500K and a CRI of 73. Integration of four of these prototype LEDs can produce luminous flux of more than 450 lumens.

295

A BRIGHT IMPULSIVE SOLAR BURST DETECTED AT 30 THz  

SciTech Connect (OSTI)

Ground- and space-based observations of solar flares from radio wavelengths to gamma-rays have produced considerable insights but raised several unsolved controversies. The last unexplored wavelength frontier for solar flares is in the range of submillimeter and infrared wavelengths. Here we report the detection of an intense impulsive burst at 30 THz using a new imaging system. The 30 THz emission exhibited remarkable time coincidence with peaks observed at microwave, mm/submm, visible, EUV, and hard X-ray wavelengths. The emission location coincides with a very weak white-light feature, and is consistent with heating below the temperature minimum in the atmosphere. However, there are problems in attributing the heating to accelerated electrons. The peak 30 THz flux is several times larger than the usual microwave peak near 9 GHz, attributed to non-thermal electrons in the corona. The 30 THz emission could be consistent with an optically thick spectrum increasing from low to high frequencies. It might be part of the same spectral component found at sub-THz frequencies whose nature remains mysterious. Further observations at these wavelengths will provide a new window for flare studies.

Kaufmann, P.; Fernandes, L. O. T.; Kudaka, A. S.; De Souza, R. V.; Valio, A.; Raulin, J.-P. [Center of Radio Astronomy and Astrophysics, Engineering School, Mackenzie Presbyterian University, Sao Paulo, SP (Brazil); White, S. M. [Air Force Research Laboratories, Space Vehicles Directorate, Albuquerque, NM 87117 (United States); Freeland, S. L. [Lockheed Martin Solar and Astrophysics Laboratory, Palo Alto, CA 94304 (United States); Marcon, R. [''Gleb Wataghin'' Physics Institute, State University of Campinas, Campinas, SP (Brazil); Aballay, J. L.; Fernandez, G.; Godoy, R.; Marun, A.; Gimenez de Castro, C. G. [El Leoncito Astronomical Complex, CONICET, San Juan (Argentina)

2013-05-10T23:59:59.000Z

296

Dr. Cook to Livermore: The Future is Bright | National Nuclear...  

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

equation of state, X-ray scattering and compression of diamond; Livermore's leadership in additive manufacturing; and the current environment in Washington. D.C. He offered both...

297

Bright flares in supergiant fast X-ray transients  

Science Journals Connector (OSTI)

......62, the typical wind velocities observed in HMXBs...in time-averaged maps (Krivonos et-al...increasing the plasma fall velocity through magnetosphere...replenished by new wind capture, so the...long as the rapid mass entry rate into the......

N. Shakura; K. Postnov; L. Sidoli; A. Paizis

2014-01-01T23:59:59.000Z

298

Bright-White Beetle Scales Optimise Multiple Scattering of Light  

E-Print Network [OSTI]

silicon photodiode and a lock-in amplifier. Calculation of specific weights per unit area c. The specific weights per unit area is given by c 5 f rt, where r is the density. For paper and syringe filter the density of cellulose isr5 1.5 g cm23, f 5 0...

Burresi, Matteo; Cortese, Lorenzo; Pattelli, Lorenzo; Kolle, Mathias; Vukusic, Peter; Wiersma, Diederik S.; Steiner, Ullrich; Vignolini, Silvia

2014-08-15T23:59:59.000Z

299

High brightness photocathode injector for BNL Accelerator Test Facility  

SciTech Connect (OSTI)

An analysis of the BNL photocathode (1-1/2 cell) Gun'' operating at 2856 MHZ, is presented. The beam parameters including beam energy, and emittance are calculated. A review of the Gun parameters and full input and output of our analysis with program PARMELA, is given in Section 2, some of our results, are tabulated. The phase plots and the beam parameters, at downstream ends of the elements, from cathode through the cavity, first cell is labeled as element 2; and second cell is labeled as element to the exit of the GUN. The analysis was made for 3 cases, using three different initial values (EO) for the average accelerating gradient (MV/m), for comparison with previous works. For illustration, the field obtained with program SUPERFISH is given, and conclusion including shunt impedances obtained for the cells and the cavity are given in Section 6. PARMELA is used as a standard design program at ATF. At the request of some of the users of program PARMELA, this request of some of the users of program PARMELA, this report include and illustrates some of our data, in the input and output format of the program PARMELA. 5 refs., 7 figs., 3 tabs.

Parsa, Z.; Young, L.

1990-01-01T23:59:59.000Z

300

Bright Light-Emitting Diodes based on Organometal Halide Perovskite  

E-Print Network [OSTI]

this class of materials to be excellent semiconductors for optoelectronic devices.1-7 Their primary advantages lie in the fact that they can be easily solution processed, require no high temperature heating, and they possess an optical bandgap which...

Tan, Zhi-Kuang; Moghaddam, Reza Saberi; Lai, May Ling; Docampo, Pablo; Higler, Ruben; Deschler, Felix; Price, Michael; Sadhanala, Aditya; Pazos, Luis M.; Credgington, Dan; Hanusch, Fabian; Bein, Thomas; Snaith, Henry J.; Friend, Richard H.

2014-08-03T23:59:59.000Z

Note: This page contains sample records for the topic "all-stars shine bright" 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

Bright-White Beetle Scales Optimise Multiple Scattering of Light  

E-Print Network [OSTI]

Whiteness arises from diffuse and broadband reflection of light typically achieved through optical scattering in randomly structured media. In contrast to structural colour due to coherent scattering, white appearance ...

Burresi, Matteo

302

Bright Ideas for Chemical Biology Luke D. Lavis,  

E-Print Network [OSTI]

a biochemical or biological process can be daunting, given the countless molecules available either commercially" to describe this process (17). The importance of quinine as an antimalarial would later lead to an attempted in the commercialization of mau- vine and other "aniline dyes" is often considered to be the birth of the modern chemical

Nielsen, Steven O.

303

Wireless Power Transmission: An Obscure History, Possibly a Bright Future.  

E-Print Network [OSTI]

the use of microwaves because of the economic and energy efficiency that can be leveraged by products) and James F. Trimer (NASA) announced the development of a thin-film plastic rectenna using printed

La Rosa, Andres H.

304

NREL Success Stories - SkyFuel Partnership Reflects Bright Future  

ScienceCinema (OSTI)

NREL Scientists and SkyFuel share a story about how their partnership has resulted in a revolutionary concentrating solar power technology ReflecTech Mirror Film.

Jorgensen, Gary; Gee, Randy

2013-05-29T23:59:59.000Z

305

The Problem Conventional office lighting typically consists of bright fluo-  

E-Print Network [OSTI]

and undercabinet lights combined with incandescent or fluorescent task lights. This approach is not very energy ) of space; traditional system with incandescent task lamp. Table 1: Traditional versus integrated office

306

ITP Glass: A Clear Vision for a Bright Future  

Broader source: Energy.gov [DOE]

This document presents perspectives on the glass industry's past, present and future, with special attention to competitive challenges now facing the industry and technological responses that will reinforce its continuing contribution...

307

Adapting High Brightness Relativistic Electron Beams for Ultrafast Science  

E-Print Network [OSTI]

Comparison of x-ray and electron sources for structuralJ. Luiten. Ultracold electron source. Phys. Rev. Lett. , 95:to non-relativistic electron sources is an inter- esting

Scoby, Cheyne Matthew

2012-01-01T23:59:59.000Z

308

Electrons and gas versus high brightness ion beams  

E-Print Network [OSTI]

Review 1/11/05 beam Gas-Electron Source Diagnostic (GESD)and mitigation Gas-electron source diagnostic (GESD) [beam Measure each source of electrons Measure electron

2005-01-01T23:59:59.000Z

309

Bright Lights and Even Brighter Ideas | Department of Energy  

Office of Environmental Management (EM)

Charles Rousseaux Charles Rousseaux Senior Writer, Office of Science How does it work? Scientists found that tiny, atomic level, differences caused the crystals to glow in...

310

Fuel-producing Geobacter receives support from new research May 3rd, 2010 in Technology / Energy  

E-Print Network [OSTI]

photosynthesis. However, photovolatics only produce electricity when the sun is shining. Storing electricity

Lovley, Derek

311

NREL: Biomass Research - Chemical and Catalyst Science Capabilities  

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

Chemical and Catalyst Science Capabilities Chemical and Catalyst Science Capabilities A photo of a man in a white lab coat and dark goggles looking at a microscope. A bright green light shines down from the microscope lens and illuminates a round glass tray containing small white beads. The Laser Raman Spectrometer is used to obtain phase and structural identification information for catalysts used in the thermochemical conversion process. NREL researchers use chemical and catalyst science to assess and improve biochemical and thermochemical conversion throughout the processes, from analyzing feedstocks to improving the yield of desired end products. Catalyst Science Syngas produced during gasification contains tars that are contaminants, but these tars can be reformed to more syngas using tar-reforming

312

One "Cool Tool" That's Helping Repair Your DNA | Department of Energy  

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

"Cool Tool" That's Helping Repair Your DNA "Cool Tool" That's Helping Repair Your DNA One "Cool Tool" That's Helping Repair Your DNA April 18, 2011 - 1:20pm Addthis Charles Rousseaux Charles Rousseaux Senior Writer, Office of Science What are the key facts? Berkeley Lab's Advanced Light Source produces x-ray light that shines a billion times bright than the sun. Scientists discovered the motor that drives the actual repair of the DNA repair machine called MRN, which is tethered to the rest of the machine in a fairly flexible fashion. Further insight into MRN and other DNA repair machines may also give scientists new insights into fighting some cancers as well as other diseases such as cystic fibrosis. With the arrival of spring, many families are dusting off their tools to make some home improvements. It's worth remembering that nature also has

313

Recent News from the National Labs | Department of Energy  

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

19, 2011 19, 2011 At NREL's High-Intensity Pulse Solar Simulator, NREL's Keith Emery removes an array of multijunction solar cells produced by PV Incubator partner Solar Junction. The NREL instrument can produce the intensity of up to 90 suns. | Photo credit: Dennis Schroeder Advancing Solar Through Photovoltaic Technology Innovations A piece on a PV Technology Incubator program from the March 22 issue of the National Renewable Energy Lab (NREL) News. April 18, 2011 One "Cool Tool" That's Helping Repair Your DNA Berkeley Lab's Advanced Light Source produces x-ray light that shines a billion times bright than the sun - a tool that is giving insight insight into how cells perform the essential function of repairing damaged DNA. April 15, 2011 Blood flow visualization | Photo Courtesy of Argonne National Laboratory

314

Global warming potentials and radiative efficiencies of halocarbons and related  

E-Print Network [OSTI]

,2 J. S. Fuglestvedt,1 G. Marston,3 G. Myhre,1 C. J. Nielsen,4 K. P. Shine,2 and T. J. Wallington5. Nielsen, K. P. Shine, and T. J. Wallington (2013), Global warming potentials and radiative ef ciencies

Wirosoetisno, Djoko

315

OOTOBEB,1913. MONTHLY WEATHER REVIEW. 1615 A METEOROLOGICAL STlJDY OF PARKS AND T-ERED AREAS IN THE WESTERN YELLOW-PINE FORESTS OF  

E-Print Network [OSTI]

variations in precipitation, atmos heric moisture, and wind movement. The percentage oHsun- shine is very

316

Star formation and the interstellar medium in low surface brightness galaxies. I. Oxygen abundances and abundance gradients in low surface brightness disk galaxies  

E-Print Network [OSTI]

We present measurements of the oxygen abundances in 64 HII regions in 12 LSB galaxies. We find that oxygen abundances are low. No regions with solar abundance have been found, and most have oxygen abundances $\\sim 0.5$ to 0.1 solar. The oxygen abundance appears to be constant as a function of radius, supporting the picture of quiescently and sporadically evolving LSB galaxies.

W. J. G. de Blok; J. M. van der Hulst

1998-03-27T23:59:59.000Z

317

Frostbite Theater - Experiments You Can Try at Home! - Light is a Particle!  

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

Measure the Width of a Hair - With a Laser! Measure the Width of a Hair - With a Laser! Previous Video (Measure the Width of a Hair - With a Laser!) Frostbite Theater Main Index Next Video (Let's Measure the Diameter of the Sun!) Let's Measure the Diameter of the Sun! Light is a Particle! Do you have a laser? Do you have a roll of duct tape that's a really, really bright pink? If so, you can explore the exciting world of quantum physics by demonstrating the particle nature of light! [ Show Transcript ] Announcer: Frostbite Theater presents... Cold Cuts! No baloney! Joanna and Steve: Just science! Joanna: Hi! I'm Joanna! Steve: And I'm Steve! Joanna: If you have a laser, and you know how to use it safely, try this. Find something that's really bright pink and shine the laser on it. If you use a red laser, you'll get a red dot, just like you'd might expect.

318

A Program Full of Bright Ideas for Kentucky: Weatherization Assistance Close-Up Fact Sheet  

SciTech Connect (OSTI)

Kentucky demonstrates its commitment to technology and efficiency through the Weatherization Program. Weatherization uses advanced technologies and techniques to reduce energy costs for low-income families by increasing the energy efficiency of their homes.

D& R International

2001-10-10T23:59:59.000Z

319

The number counts and infrared backgrounds from infrared-bright galaxies  

SciTech Connect (OSTI)

Extragalactic number counts and diffuse backgrounds at 25, 60, and 100 microns are predicted using new luminosity functions and improved spectral-energy distribution density functions derived from IRAS observations of nearby galaxies. Galaxies at redshifts z less than 3 that are like those in the local universe should produce a minimum diffuse background of 0.0085, 0.038, and 0.13 MJy/sr at 25, 60, and 100 microns, respectively. Models with significant luminosity evolution predict backgrounds about a factor of 4 greater than this minimum. 22 refs.

Hacking, P.B.; Soifer, B.T. (JPL, Pasadena, CA (USA) California Institute of Technology, Pasadena (USA))

1991-02-01T23:59:59.000Z

320

Measuring and mapping the night sky brightness of Perth, Western Australia  

Science Journals Connector (OSTI)

......global affects of non-renewable energy use through the efforts...city light abatement, energy conservation and the...those involved in the mitigation of light pollution as...pollution and the cost of energy mentioned in Section......

James D. Biggs; Tiffany Fouch; Frank Bilki; Marjan G. Zadnik

2012-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "all-stars shine bright" 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

Sleep, mood, and circadian responses to bright green light during sleep  

E-Print Network [OSTI]

Groups .96 Figure 9: ESS Baseline and EndEpworth Sleepiness Scale (ESS; Johns, 1991), The PittsburghEpworth Sleepiness Scale (ESS; Johns, 1991) is a commonly-

Grandner, Michael Andrew

2007-01-01T23:59:59.000Z

322

Overview of Recent Progres on High Repetition Rate, High Brightness Electron Guns  

E-Print Network [OSTI]

Ceramic DC Electron Gun for the Jefferson Laboratory FEL.ALICE (ERLP) DC Photoinjector Gun Commissioning, Proc. ofa 500-kV Photo- cathode DC Gun for the ERL Light Sources in

Sannibale, F.

2014-01-01T23:59:59.000Z

323

Spectroscopy and orbital analysis of bright bolides observed over the Iberian Peninsula from 2010 to 2012  

Science Journals Connector (OSTI)

......in the Solar system, such as comet 1P/Halley and the CI and CM...Despite this mass is small, the landing point of the meteorite was estimated...to this analysis, the likely landing point would be located around...general, it is thought that every comet experienced different evolutionary......

Jos M. Madiedo; Josep M. Trigo-Rodrguez; Jos L. Ortiz; Alberto J. Castro-Tirado; Sensi Pastor; Jos A. de los Reyes; Jess Cabrera-Cao

2013-01-01T23:59:59.000Z

324

Space-charged-induced emittance growth in the transport of high-brightness electron beams  

SciTech Connect (OSTI)

The emittance induced by space charge in a drifting beam of finite length has been investigated, and a scaling law has been obtained from simple considerations of the different rates of expansion of different portions of the beam. The scaling law predicts the initial rate of emittance growth, before the beam shape has distorted significantly, and thus represents an upper bound on the rate of emittance increase. This scaling law has been substantiated by particle-in-cell simulation and the dependence on geometric factors evaluated for specific choices of the beam profile. For long, axially nonuniform beams, the geometric factors have been evaluated explicitly for Gaussian profiles, and other shapes.

Jones, M.E.; Carlsten, B.E.

1987-03-01T23:59:59.000Z

325

SunShot Grand Challenge Summit: Bright Outlook to Achieve SunShot Goal  

Office of Energy Efficiency and Renewable Energy (EERE)

Last week, hundreds of solar energy leaders gathered in southern California to participate in SunShots biennial Grand Challenge Summit. Read a recap of the four-day event, which focused on making solar energy fully cost-competitive with traditional forms of energy by 2020.

326

Measuring and mapping the night sky brightness of Perth, Western Australia  

Science Journals Connector (OSTI)

......wasteful and ineffective lighting practices will be reduced...economic and environmental costs continue to rise (Crawford...Characteristics of the street lighting in the general vicinity...societies is the economic cost of light pollution...are linked with several medical disorders including depression......

James D. Biggs; Tiffany Fouch; Frank Bilki; Marjan G. Zadnik

2012-04-01T23:59:59.000Z

327

November 16, 2006 Spectral properties of X-ray bright variable sources in the Taurus  

E-Print Network [OSTI]

, W¨urenlingen and Villigen, 5232 Villigen PSI, Switzerland 4 Columbia Astrophysics Laboratory, Mail Code 5247, 550 West 120th Street, New York, NY 10027, USA 5 INAF - Osservatorio Astrofisico di Arcetri of flares to derive the size of the flaring loops. Results. The light curves of the selected sources show

328

High-Throughput, High-Precision Hot Testing Tool for High-Brightness...  

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

Light-Emitting Diode Testing More Documents & Publications 2014 Solid-State Lighting Project Portfolio A Practical Primer to LED Technology LED Color Characteristics...

329

Turbulent Diffusion in the Photosphere as Derived from Photospheric Bright Point Motion  

E-Print Network [OSTI]

, Vecchio, A.2 1 - Big Bear Solar Observatory, 40386 N. Shore Lane, Big Bear City, CA 92314, USA; 2 of Physics & Astronomy, Michigan State University, East Lansing, MI 48824, USA Received ; accepted #12;­ 2 ­ ABSTRACT On the basis of observations of solar granulation obtained with the New Solar Telescope (NST

330

Night sky brightness at sites from DMSP-OLS satellite measurements  

Science Journals Connector (OSTI)

......was granted by the US Air Force for the darkest nights of...world. This study provides fundamental information for evaluating...2004). They constitute a fundamental component of the monitoring...Stegun I. A.,1964, Handbook of Mathematical Functions......

P. Cinzano; C. D. Elvidge

2004-10-01T23:59:59.000Z

331

THE CATALOG OF POSITIONS OF OPTICALLY BRIGHT EXTRAGALACTIC RADIO SOURCES OBRS-2  

SciTech Connect (OSTI)

Future space-borne astrometry missions, such as Gaia, will be able to determine the optical positions of hundreds of quasars with submilliarcsecond accuracies comparable to those achieved in radio by very long baseline interferometry (VLBI). Comparisons of coordinate systems from space-borne missions and VLBI will be very important, first for investigations of possible systematic errors and second for investigations of possible shifts between centroids of radio and optical emissions in active galactic nuclei. In order to make such a comparison more robust, a program for densification of the grid of radio sources detectable with both VLBI and Gaia was launched in 2006. Program sources are 398 quasars with declinations > - 10 Degree-Sign that are brighter than 18 mag at the V band. The first two observing campaigns were run in 2007-2008. In the third campaign, a set of 291 objects from that list was observed with the VLBA+EVN in 2010-2011 with the primary goal of producing their images with milliarcsecond resolution. In this paper, following the method of absolute astrometry, coordinates of observed sources have been derived with milliarcsecond accuracies from analysis of these observations. The catalog of positions of 295 target sources, estimates of their correlated flux densities at 2.2 and 8.4 GHz, and their images are presented. The accuracies of source coordinates are in a range of 2-200 mas, with a median of 3.2 mas.

Petrov, L., E-mail: Leonid.Petrov@lpetrov.net [Astrogeo Center, Falls Church, VA 22043 (United States)

2013-07-01T23:59:59.000Z

332

Bright Hot Impacts by Erupted Fragments Falling Back on the Sun: A Template for Stellar Accretion  

Science Journals Connector (OSTI)

...with low density or low velocity are unable to produce...and the wide range of velocity and density values of...to underestimating the mass accretion rate from the...expansion of a coronal mass ejection . Astrophys. J. 745...thermally conducting solar wind . J. Geophys. Res...

Fabio Reale; Salvatore Orlando; Paola Testa; Giovanni Peres; Enrico Landi; Carolus J. Schrijver

2013-07-19T23:59:59.000Z

333

Azimuthal Turing Patterns, Bright and Dark Cavity Solitons in Kerr Combs Generated With  

E-Print Network [OSTI]

!þ "h! ! "h!#12; þ "h!, as long as they fulfill the requirements of energy and momentum conservation, 2013; accepted August 2, 2013. Date of publication August 8, 2013; date of current version August 23 Journal Solitons in Kerr Combs With WGM Resonators #12;in aerospace and communication engineering, as well

Maryland, Baltimore County, University of

334

Optimization of High Brightness Cs Ion Source and Ion Optics for UHV-IMMA  

Science Journals Connector (OSTI)

An ultra - high vacuum ion microprobe mass analyser (UHV-IMMA) aimed at hydrogen detection and microanalysis ... at ULVAC. A schematic diagram of the UHV-IMMA is shown in Fig. 1....

K. Komatsu; O. Tsukakoshi; T. Katagawa

1984-01-01T23:59:59.000Z

335

Veeco Develops a Tool to Reduce Epitaxy Costs and Increase LED Brightness  

Broader source: Energy.gov [DOE]

With the help of DOE funding, Veeco is working on reducing epitaxy costs and increasing LED efficiency by developing a physical vapor deposition (PVD) tool for depositing aluminum nitride buffer layers on LED substrates. PVD, also known as "sputtering," is an alternative to metal-organic chemical vapor deposition (MOCVD). PVD is a purely physical process that involves plasma sputter bombardment rather than a chemical reaction at the surface to be coated, as in MOCVD.

336

The GMRT EoR Experiment: Limits on Polarized Sky Brightness at 150 MHz  

E-Print Network [OSTI]

The GMRT reionization effort aims to map out the large scale structure of the Universe during the epoch of reionization (EoR). Removal of polarized Galactic emission is a difficult part of any 21 cm EoR program, and we present new upper limits to diffuse polarized foregrounds at 150 MHz. We find no high significance evidence of polarized emission in our observed field at mid galactic latitude (J2000 08h26m+26). We find an upper limit on the 2-dimensional angular power spectrum of diffuse polarized foregrounds of [l^2 C_l/(2 PI)]^{1/2}EoR observations, is [k^3 P_p(k)/(2 PI^2)]^{1/2} 0.03 h/Mpc, k EoR signal in total intensity of [k^3 P(k)/ (2 PI^2) ]^{1/2} ~ 10 mK. We find polarized structure is substantially weaker than suggested by extrapolation from higher frequency observations, so the new low upper limits reported here reduce the anticipated impact of these foregrounds on EoR experiments. We discuss Faraday beam and depth depolarization models and compare predictions of these models to our data. We report on a new technique for polarization calibration using pulsars, as well as a new technique to remove broadband radio frequency interference. Our data indicate that, on the edges of the main beam at GMRT, polarization squint creates ~ 3% leakage of unpolarized power into polarized maps at zero rotation measure. Ionospheric rotation was largely stable during these solar minimum night time observations.

Ue-Li Pen; Tzu-Ching Chang; Christopher M. Hirata; Jeffrey B. Peterson; Jayanta Roy; Yashwant Gupta; Julia Odegova; Kris Sigurdson

2009-05-05T23:59:59.000Z

337

Campaign of sky brightness and extinction measurements using a portable CCD camera  

Science Journals Connector (OSTI)

......extinction values are the averages. Additional data...of the electric energy consumption in public lighting...keep warmth inside homes. The former may...farms, gardens, homes) have yet to be...distance 20 m, average distance from street......

Fabio Falchi

2011-03-21T23:59:59.000Z

338

Sleep, mood, and circadian responses to bright green light during sleep  

E-Print Network [OSTI]

white light from fluorescent bulbs, as point sources mightthan incandescent bulbs. Also, fluorescent light is easier

Grandner, Michael Andrew

2007-01-01T23:59:59.000Z

339

E-Print Network 3.0 - all-sky survey bright Sample Search Results  

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

All-Sky Survey. Since the simulated light curve is quite stable... .1. All-Sky Survey FIS is primarily designed ... Source: Pak, Soojong - Department of Astronomy and Space...

340

Critical issues for high-brightness heavy-ion beams -- prioritized  

E-Print Network [OSTI]

National Ignition Facility (NIF) will provide motivation toobtaining funding for the NIF, the Large Hadron Collider (

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "all-stars shine bright" 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

Measuring and mapping the night sky brightness of Perth, Western Australia  

Science Journals Connector (OSTI)

......affects of non-renewable energy use through the...and environmental costs continue to rise...estimate that the energy used to create light pollution cost Japan 20 billion...pollution and the cost of energy mentioned in Section......

James D. Biggs; Tiffany Fouch; Frank Bilki; Marjan G. Zadnik

2012-04-01T23:59:59.000Z

342

Looking on bright side of losing ITER Risa Kato and Tetsuro Yamada / Yomiuri Shimbun Staff Writers  

E-Print Network [OSTI]

to have a remote-controlled ITER experiment unit, and one for the development of super heat candidate to have a remote-control facility is of especially high significance, according to experts. The remote-control facility is envisaged as playing a key role in the ITER project, as it will be able

343

How Many CASTLE Bulbs Would You Need To Match the Brightness of the Sun?  

E-Print Network [OSTI]

;Suppose that you have two household incandescent bulbs: one is labeled "60W," the other "100W." If you try incandescent bulb and a 9W fluorescent bulb. Which one makes your room brighter? It's not what you might expect... in fact, they look about the same! The incandescent bulb emits a broad spectrum of visible and infrared

Collar, Juan I.

344

Generation, transport and focusing of high-brightness heavy ion beams  

E-Print Network [OSTI]

The Neutralized Transport Experiment (NTX) has been built at the Heavy Ion Fusion Virtual National Laboratory. NTX is the first successful integrated beam system experiment that explores various physical phenomena, and ...

Henestroza, Enrique

2006-01-01T23:59:59.000Z

345

n a bright spring morning in Pasadena, California, the air is rich with the smells  

E-Print Network [OSTI]

trucks with electric vehi- cles charged by solar cells or wind -- but that cannottacklethewholeproblem reported3 a complete system that showedamajoradvance--itstored12%ofthe incoming solar energy as fuel- rentglobaltransportationcannotbeelectrified. For example, barring a major breakthrough, there will never be a plug-in hybrid plane: no craft

Napp, Nils

346

The XMMNewton Bright Survey sample of absorbed quasars: X-ray and accretion properties  

Science Journals Connector (OSTI)

......4 http://irsa.ipac.caltech.edu/applications/Gator 5 In this case, the IR emission is not taken into account...Archive, http://irsa.ipac.caltech.edu/cgi-bin/Gator/nph-scan?submit=Selectprojshort=SPITZER 9 Number of......

L. Ballo; P. Severgnini; R. Della Ceca; A. Caccianiga; C. Vignali; F. J. Carrera; A. Corral; S. Mateos

2014-01-01T23:59:59.000Z

347

Theoretical ecology: a successful first year and a bright future for a new journal  

E-Print Network [OSTI]

6 EDITORIAL Theoretical ecology: a successful first year andvolume 2 of Theoretical Ecology. Looking back, this has beenfocusing on theoretical ecology can play an expanding role

Hastings, Alan

2009-01-01T23:59:59.000Z

348

Brightness and color of rapidly moving objects: The visual appearance of a large sphere revisited  

Science Journals Connector (OSTI)

An object at relativistic speed is seen as both rotated and distorted when it is large or close by so that it subtends a large solid angle. This is a consequence of the aberration effect and is obtained by purely geometric considerations. In this paper it is pointed out and illustrated that a photorealistic image of such an object would actually be dominated by the Doppler and searchlight effects which would be so prominent as to render the geometric apparent shape effectively invisible.

U. Kraus

2000-01-01T23:59:59.000Z

349

Lecture 2. Instrumentation Is the Sun very bright so we can never be photon hungry?  

E-Print Network [OSTI]

to generate effective focal length. Arfd /2 B) Long Primary Focus Instrument #12;10 Heliostat primary mirror mounted on Polar axis Image rotation 15º/h Heliostat #12;11 Coelostat A polar axis mounted primary plus

350

Perception, 1993, volume 22, pages 343-351 Colour pools, brightness pools, assimilation,  

E-Print Network [OSTI]

varies according to the colours involved. For red-cyan and green-magenta complementary pairs colour vision are discussed in the light of these findings. 1 Introduction The purpose of this communication the preparation of this communication we found that we were the rein- ventors, not the originators

Kingdom, Frederick A. A.

351

Critical issues for high-brightness heavy-ion beams -- prioritized  

E-Print Network [OSTI]

towards ultra-high vacuum (UHV) technology with hard sealsD-end diagnostics tank with a UHV version. However, we wouldmight be possible with new UHV beam tubes if they could be

2007-01-01T23:59:59.000Z

352

A bright thermonuclear X-ray burst simultaneously observed with Chandra and RXTE  

E-Print Network [OSTI]

The prototypical accretion-powered millisecond pulsar SAX J1808.4?3658 was observed simultaneously with Chandra-LETGS and RXTE-PCA near the peak of a transient outburst in November 2011. A single thermonuclear (type-I) ...

in t Zand, J. J. M.

353

An Ultra-Bright Pulsed Electron Beam with Low Longitudinal Emittance  

E-Print Network [OSTI]

Abstract Most existing electron sources extract electrons? f ? 2 10 ?3 . An electron source with these parameters canble applications for this electron source include angstrom-

2005-01-01T23:59:59.000Z

354

Survey of hydrogen peroxide bleaching of mechanical and chemimechanical pulp - factors affecting brightness  

SciTech Connect (OSTI)

The literature upon which this survey is based covers the period from 1975 to June 1985 and was searched both manually and by computer. More than 100 articles and patents were examined, and of these almost half were singled out as meriting citation. Several recent surveys can be identified as sources that provide a general overview of current peroxide bleaching practice as specifically applied to mechanical and chemimechanical pulps. Additionally, an article by Allison, although not intended as a review, nevertheless serves as one by virtue of the broad scope of its content. 44 references.

Dence, C.W.; Omori, S.

1986-10-01T23:59:59.000Z

355

Solid-State Lighting with High Brightness, High Efficiency, and Low Cost  

E-Print Network [OSTI]

-based lamp for lighthouse application were discussed at the system level ("Implementation and test of a LED University, Hsinchu 30010, Taiwan 4 Center for Photonics and Nanoelectronics, Department of Electrical the advanced lighting with the energy- saving and environmental-protecting capabilities, the tech- nologies

Gilchrist, James F.

356

VLBI observations at 147 GHz: first detection of transatlantic fringes in bright AGN  

E-Print Network [OSTI]

At 147 GHz (2mm wavelength), we detected three prominent AGN (NRAO150, 3C279, 1633+382) with Very Long Baseline Interferometry (VLBI) with an angular resolution of only 18 micro-arcseconds on the baseline between two antennas in Arizona (10m HHT and 12m KittPeak) and the IRAM 30m antenna on Pico Veleta in Spain. This is a new world record in radio interferometry and astronomical imaging and opens fascinating future possibilities to directly image and study the innermost regions in Quasars and other Active Galactic Nuclei.

T. P. Krichbaum; D. A. Graham; W. Alef; A. Polatidis; U. Bach; A. Witzel; J. A. Zensus; A. Greve; M. Grewing; S. Doeleman; R. Phillips; A. E. E. Rogers; M. Titus; H. Fagg; P. Strittmatter; T. L. Wilson; L. Ziurys; R. Freund; P. K"on"onen; J. Peltonen; S. Urpo; F. Rantakyro; J. Conway; R. S. Booth

2002-07-01T23:59:59.000Z

357

VLBI observations at 147 GHz first detection of transatlantic fringes in bright AGN  

E-Print Network [OSTI]

At 147 GHz (2mm wavelength), we detected three prominent AGN (NRAO150, 3C279, 1633+382) with Very Long Baseline Interferometry (VLBI) with an angular resolution of only 18 micro-arcseconds on the baseline between two antennas in Arizona (10m HHT and 12m KittPeak) and the IRAM 30m antenna on Pico Veleta in Spain. This is a new world record in radio interferometry and astronomical imaging and opens fascinating future possibilities to directly image and study the innermost regions in Quasars and other Active Galactic Nuclei.

Krichbaum, T P; Alef, W; Polatidis, A; Bach, U; Witzel, A; Zensus, J A; Greve, A; Grewing, M; Doeleman, S; Phillips, R; Rogers, A E E; Titus, M; Fagg, H; Strittmatter, P A; Wilson, T L; Ziurys, L M; Freund, R W; Knnen, P; Peltonen, J; Urpo, S; Rantakyro, F; Conway, J; Booth, R S

2002-01-01T23:59:59.000Z

358

Bright x-ray sources from laser irradiation of foams with high concentration of Ti  

SciTech Connect (OSTI)

Low-density foams irradiated by a 20 kJ laser at the Omega laser facility (Laboratory for Laser Energetics, Rochester, NY, USA) are shown to convert more than 5% of the laser energy into 4.6 to 6.0?keV x rays. This record efficiency with foam targets is due to novel fabrication techniques based on atomic-layer-deposition of Ti atoms on an aerogel scaffold. A Ti concentration of 33 at.?% was obtained in a foam with a total density of 5?mg/cm{sup 3}. The dynamics of the ionization front through these foams were investigated at the 1 kJ laser of the Gekko XII facility (Institute for Laser Engineering, Osaka, Japan). Hydrodynamic simulations can reproduce the average electron temperature but fail to predict accurately the heat front velocity in the foam. This discrepancy is shown to be unrelated to the possible water adsorbed in the foam but could be attributed to effects of the foam micro-structure.

Prez, F., E-mail: perez75@llnl.gov; Patterson, J. R.; May, M.; Colvin, J. D.; Biener, M. M.; Wittstock, A.; Kucheyev, S. O.; Charnvanichborikarn, S.; Satcher, J. H.; Gammon, S. A.; Poco, J. F.; Fournier, K. B. [Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, California 94550 (United States)] [Lawrence Livermore National Laboratory, 7000 East Ave., Livermore, California 94550 (United States); Fujioka, S.; Zhang, Z.; Ishihara, K.; Tanaka, N.; Ikenouchi, T.; Nishimura, H. [Institute of Laser Engineering, Osaka University, 2-6 Yamada-Oka, Suita, Osaka 565-0871 (Japan)] [Institute of Laser Engineering, Osaka University, 2-6 Yamada-Oka, Suita, Osaka 565-0871 (Japan)

2014-02-15T23:59:59.000Z

359

CX-000270: Categorical Exclusion Determination | Department of...  

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

CX-000270: Categorical Exclusion Determination Recovery Act: Milwaukee Shines for a Sustainable Solar Economy CX(s) Applied: A9, A11 Date: 12282009 Location(s): Wisconsin...

360

Global warming potentials and radiative efficiencies of halocarbons and related  

E-Print Network [OSTI]

. Fuglestvedt1 , G. Marston3 , G. Myhre1 , C. J. Nielsen4 ,4 K. P. Shine2 , T. J. Wallington5 5 1 Center

Wirosoetisno, Djoko

Note: This page contains sample records for the topic "all-stars shine bright" 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

Solar | Department of Energy  

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

Research Award Program work on. | Photo by Dennis Schroeder, National Renewable Energy Laboratory Shining Stars of Solar: Meet Three SunShot Postdoctoral Award Recipients...

362

Building Technologies Office Load Control Strategies  

Broader source: Energy.gov [DOE]

BTO researches and implements load control strategies, which support the Sustainable and Holistic IntegratioN of Energy storage and Solar PV (SHINES) FOA.

363

Complete genome sequence of the filamentous anoxygenic phototrophic bacterium Chloroflexus aurantiacus  

Science Journals Connector (OSTI)

The genome sequence of the filamentous anoxygenic phototrophic bacterium Chloroflexus aurantiacus shows numerous distinctive features that may shine light on the origin and early evolution of photosynthesis.

Kuo-Hsiang Tang; Kerrie Barry; Olga Chertkov; Eileen Dalin; Cliff S Han; Loren J Hauser; Barbara M Honchak; Lauren E Karbach; Miriam L Land; Alla Lapidus; Frank W Larimer; Natalia Mikhailova; Samuel Pitluck; Beverly K Pierson; Robert E Blankenship

2011-06-29T23:59:59.000Z

364

Notice of Intent to Issue Funding Opportunity for Integrated...  

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

integrate these solutions into PV power plants. SHINES projects can also focus on demand response and load management to achieve target metrics. These projects will directly...

365

Solar | Department of Energy  

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

integrate these solutions into PV power plants. SHINES projects can also focus on demand response and load management to achieve target metrics. October 10, 2014 Installing a...

366

CX-000546: Categorical Exclusion Determination | Department of...  

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

Environmental Management, Savannah River Operations Office A Kaiser Optic Fourier Transform Raman (FT-Raman) spectrometer will be use to shine a weak (0 to 400 megawatts) laser...

367

Harnessing Solar Energy at Home | Department of Energy  

Office of Environmental Management (EM)

How does it work? When sunlight shines on a Photovoltaic (PV) cell, the absorbed light generates electricity. Because PV technologies use both direct and scattered...

368

Solar | Department of Energy  

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

for more World Cup Action | Photo courtesy of Renato CobucciImprensaMG Shining Some Light on the World Cup's Efficiency Efforts Brazil strives for energy efficiency with...

369

E-Print Network 3.0 - agua hymenachne amplexicaulis Sample Search...  

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

amplexicaulis (Rudge) Nees (occurring in thick mats floating on waterways Source: Shine, Rick - School of Biological Sciences, University of Sydney Collection: Environmental...

370

Hubble Space Telescope Near-Ultraviolet Spectroscopy of the Bright CEMP-no Star BD+44 493  

E-Print Network [OSTI]

We present an elemental-abundance analysis, in the near-ultraviolet (NUV) spectral range, for the extremely metal-poor star BD+44 493, a 9th magnitude sub-giant with [Fe/H] = -3.8 and enhanced carbon, based on data acquired with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope. This star is the brightest example of a class of objects that, unlike the great majority of carbon-enhanced metal-poor (CEMP) stars, does not exhibit over-abundances of heavy neutron-capture elements (CEMP-no). In this paper, we validate the abundance determinations for a number of species that were previously studied in the optical region, and obtain strong upper limits for beryllium and boron, as well as for neutron-capture elements from zirconium to platinum, many of which are not accessible from ground-based spectra. The boron upper limit we obtain for BD+44 493, logeps(B) < -0.70, the first such measurement for a CEMP star, is the lowest yet found for very and extremely metal-poor stars. In addition, we ob...

Placco, Vinicius; Roederer, Ian; Cowan, John; Frebel, Anna; Filler, Dan; Ivans, Inese I; Lawler, James E; Schatz, Hendrik; Sneden, Christopher; Sobeck, Jennifer; Aoki, Wako; Smith, Verne

2014-01-01T23:59:59.000Z

371

CONCEPTUAL DESIGN OF A BRIGHT ELECTRON INJECTOR BASED ON A LASER-DRIVEN PHOTOCATHODE RF ELECTRON GUN  

E-Print Network [OSTI]

Photocathode RF Electron Gun S. Chattopadhyay, Y.J. Chen, D.PHOTOCATHODE RF ELECTRON GUN' S. Chnttopndhyny. Y.J. Chen (Photocathode RF Electron Gun S. Chattopadhyay, Y.I. Chen, D.

Chattopadhyay, S.

2010-01-01T23:59:59.000Z

372

The environment of bright QSOs at z 6: star-forming galaxies and X-ray emission  

Science Journals Connector (OSTI)

......this exceptional mass growth may have been...unrealistically strong galactic winds, this may be an...kind of AGN-driven wind may be realized in...18, we show mass-weighted maps of the projected radially outward velocity of outflowing gas......

Tiago Costa; Debora Sijacki; Michele Trenti; Martin G. Haehnelt

2014-01-01T23:59:59.000Z

373

No excess of bright galaxies around the redshift 7.1 quasar ULAS J1120+0641  

E-Print Network [OSTI]

to facilitate studies of the Universe in the first billion years after the big bang in two ways. First, since they are the most luminous non-transient objects, it is possible to measure the opacity of the intergalactic medium (IGM) along the line of sight due... whether this was due to flat-fielding errors by constructing a corrective flat-field from our pipelined images. All 25 ACS images were scaled to the same sky level, and this stack was median filtered before the small-scale structure was removed...

Simpson, Chris; Mortlock, Daniel; Warren, Stephen; Cantalupo, Sebastiano; Hewett, Paul; McLure, Ross; McMahon, Richard; Venemans, Bram

2014-07-02T23:59:59.000Z

374

NEW PRECISION ORBITS OF BRIGHT DOUBLE-LINED SPECTROSCOPIC BINARIES. VIII. HR 1528, HR 6993, 2 SAGITTAE, AND 18 VULPECULAE  

SciTech Connect (OSTI)

Improved orbital elements for four A-star double-lined spectroscopic binaries have been determined with numerous new radial velocities. Three of the four systems, HR 1528, 2 Sge, and 18 Vul, have moderately short orbital periods of 7.05, 7.39, and 9.31 days, respectively, and also have circular or nearly circular orbits. Only HR 6993 with a period of 14.68 days has a significantly eccentric orbit. The close visual companion of 2 Sge has been detected spectroscopically, and its velocity measured. The orbital dimensions (a {sub 1} sin i and a {sub 2} sin i) and minimum masses (m {sub 1} sin{sup 3} i and m {sub 2} sin{sup 3} i) of the short-period binary components all have accuracies of 0.5% or better. We determine basic properties of the individual stars and compare them with solar-abundance evolutionary tracks to estimate their masses. Half of the eight components may be synchronously or pseudosynchronously rotating.

Fekel, Francis C.; Williamson, Michael H. [Center of Excellence in Information Systems, Tennessee State University, 3500 John A. Merritt Boulevard, Box 9501, Nashville, TN 37209 (United States); Tomkin, Jocelyn, E-mail: fekel@evans.tsuniv.edu, E-mail: michael.h.williamson@gmail.com, E-mail: jt@alexis.as.utexas.edu [Astronomy Department and McDonald Observatory, University of Texas, Austin, TX 78712 (United States)

2013-11-01T23:59:59.000Z

375

SPIE International Conference, Denver CO, July 1999 1 Relevance Of The Modified Model For The Microwave Brightness Temperature To The  

E-Print Network [OSTI]

of low wind conditions. The radiosonde profiles are used to compute the upwelling and downwelling numerous advantages over ship and buoy data. Some of these advantages include the vast coverage of global seas, including locations where radiosonde or buoys cannot be afforded, relatively low power

Cruz-Pol, Sandra L.

376

Constraints on minimum electron Lorentz factor and matter content of jets for a sample of bright Fermi blazars  

E-Print Network [OSTI]

We fit the (quasi-)simultaneous multi-waveband spectral energy distributions (SEDs) for a sample of low-synchrotron-peaked (LSP) blazars with a one-zone leptonic model. The seed photons that predominantly come from broad line region (BLR) and infrared (IR) molecular torus are considered respectively in external Compton process. We find that the modeling with IR seed photons is systematically better than that with BLR photons based on a $\\chi^2$ test, which suggest that $\\gamma$-ray emitting region most possibly stay outside the BLR. The minimum electron Lorentz factor, $\\gamma_{\\rm min}$, is constrained from the modeling for these LSP blazars with good soft X-ray data (ranges from 5 to 160 with a median value of 55), which plays a key role in jet power estimation. Assuming one-to-one ratio of proton and electron, we find that the jet power for LSP blazars is systematically higher than that of FR II radio galaxies at given 151 MHz radio luminosity, $L_{\\rm 151MHz}$, even though FR IIs are regarded as same as L...

Kang, Shiju; Wu, Qingwen

2014-01-01T23:59:59.000Z

377

Star formation in bright-rimmed clouds and clusters associated with the W5 E H II region  

Science Journals Connector (OSTI)

......All Sky Point Source Catalog, NASA/IPAC Infrared Science Archive, http://irsa.ipac.caltech.edu/applications/Gator/ . Edwards S. , Hartigan P., Ghandour L., Andrulis C., 1994, AJ, 108, 1056. Georgelin Y. M. , Georgelin Y. P......

Neelam Chauhan; A. K. Pandey; K. Ogura; J. Jose; D. K. Ojha; M. R. Samal; H. Mito

2011-08-01T23:59:59.000Z

378

Comprehensive Observations of the Bright and Energetic Type Iax SN 2012Z: Interpretation as a Chandrasekhar Mass White Dwarf Explosion  

E-Print Network [OSTI]

We present UV through NIR broad-band photometry, and optical and NIR spectroscopy of Type Iax supernova 2012Z. The data set consists of both early and late-time observations, including the first late phase NIR spectrum obtained for a spectroscopically classified SN Iax. Simple model calculations of its bolometric light curve suggest SN 2012Z produced ~0.3 M_sun of (56)Ni, ejected about a Chandrasekhar mass of material, and had an explosion energy of ~10^51 erg, making it one of the brightest and most energetic SN Iax yet observed. The late phase NIR spectrum of SN 2012Z is found to broadly resemble similar epoch spectra of normal SNe Ia; however, like other SNe Iax, corresponding visual-wavelength spectra differ substantially compared to all supernova types. Constraints from the distribution of IMEs, e.g. silicon and magnesium, indicate that the outer ejecta did not experience significant mixing during or after burning, and the late phase NIR line profiles suggests most of the (56)Ni is produced during high d...

Stritzinger, M D; Hoeflich, P; Baron, E; Phillips, M M; Taddia, F; Foley, R J; Hsiao, E Y; Jha, S W; McCully, C; Pandya, V; Simon, J D; Benetti, S; Brown, P J; Burns, C R; Campillay, A; Contreras, C; Forster, F; Holmbo, S; Marion, G H; Morrell, N; Pignata, G

2014-01-01T23:59:59.000Z

379

Raindrop Size Distributions and Rain Characteristics in California Coastal Rainfall for Periods with and without a Radar Bright Band  

E-Print Network [OSTI]

S-band profiling radars showed that coastal winter storms in California and Oregon frequently do sites in northern California were revisited in the winter of 2003/04 in this study, which extends significant. Liquid water contents differ very little, however, for the two rain types. Dis- drometer

Yuter, Sandra

380

Bright-to-dark exciton transition in symmetric coupled quantum wells induced by an in-plane magnetic field  

Science Journals Connector (OSTI)

The energy dispersion of an exciton in a coupled quantum well is modified by an external in-plane magnetic field. We find that the in-plane magnetic field can shift the ground state of the magnetoexciton from a zero in-plane center-of-mass (CM) momentum to a finite CM momentum, and render the ground state of the magnetoexciton stable against radiative recombination due to momentum conservation. At the same time, a spatial separation of the electron and hole is realized. Thus an in-plane magnetic field can be used to tailor the radiative properties of excitons in coupled quantum wells.

Kai Chang and F. M. Peeters

2001-03-28T23:59:59.000Z

Note: This page contains sample records for the topic "all-stars shine bright" 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

Ultrashort Single-Wall Carbon Nanotubes Reveal Field-Emission Coulomb Blockade and Highest Electron-Source Brightness  

Science Journals Connector (OSTI)

We present here well-defined Coulomb staircases using an original field-emission experiment on several individual insitugrown single-wall carbon nanotubes. A unique insitu process was applied nine times to progressively shorten one single-wall carbon nanotube down to ?10??nm, which increased the oscillations periods from 5.5 to 80V, the temperature for observable Coulomb staircase to 1100K and the currents to 1.8???A. This process led to the brightest electron source ever reported [91011??A/(str?m2?V)].

A. Pascale-Hamri; S. Perisanu; A. Derouet; C. Journet; P. Vincent; A. Ayari; S.?T. Purcell

2014-03-26T23:59:59.000Z

382

Mechanistic Studies on the Formation of Trifluoromethyl Sulfur Pentafluoride, SF5CF3sa Greenhouse Gas  

E-Print Network [OSTI]

) Nielsen, O. J.; Nicolaisen, F. M.; Bacher, C.; Hurley, M. D.; Wallington, T. J.; Shine, K. P. Atmos. EnViron. 2001, 36, 1237-1240. (2) Sturges, W. T.; Oram, D. E.; Penkett, S. A.; Wallington, T. J.; Shine, K. P

Kaiser, Ralf I.

383

Solar Policy Environment: Milwaukee  

Broader source: Energy.gov [DOE]

The City of Milwaukees SAC Initiative, Milwaukee Shines, works to reduce informational, economic and procedural barriers to the widespread adoption of solar energy systems. While the City of Milwaukee and its partners have demonstrated commitment and experience in implementing solar technologies, Milwaukee Shines aims to enhance these efforts and make solar a viable alternative throughout the region.

384

Lensless Imaging of Magnetic Nanostructures  

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

Lensless Imaging of Magnetic Nanostructures Print Lensless Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging for the first time to nanometer-scale magnetic structures in an alloy. Many Ways To See You open your eyes and detect the light rays streaming through your bedroom window (transmission), illuminating your socks on the floor (scattering). You put on your glasses (refraction) to detect the state of your image in the mirror (reflection). If you are an ALS scientist, perhaps you go to work and shine some x-ray light on a crystal to detect the arrangement of the atoms in the crystal (diffraction). Now, thanks to Turner et al., you can also shine some x-ray light on a magnetic sample to detect the arrangement of its electron spins through a method known as lensless imaging. This last example is an equally valid way to "see," but instead of using windows, lenses, or mirrors to manipulate light and construct an image, mathematical formulas are used to describe the effects that particles and fields in the sample have on the light. These formulas have always contained terms that relate to the electron spin of magnetic atoms, but they were previously ignored. Using the full formula allows for the determination of not only crystal structure, but magnetic spin distribution and orientation as well, with a spatial resolution limited only by the wavelength of x-rays used. This promising method can be used at any coherent light source, including modern x-ray free-electron lasers, where ultrashort pulses would freeze-frame magnetic changes, offering the potential for imaging in unprecedented detail the structure and motion of boundaries between regions with different magnetic orientation.

385

Lensless Imaging of Magnetic Nanostructures  

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

Lensless Imaging of Magnetic Nanostructures Print Lensless Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging for the first time to nanometer-scale magnetic structures in an alloy. Many Ways To See You open your eyes and detect the light rays streaming through your bedroom window (transmission), illuminating your socks on the floor (scattering). You put on your glasses (refraction) to detect the state of your image in the mirror (reflection). If you are an ALS scientist, perhaps you go to work and shine some x-ray light on a crystal to detect the arrangement of the atoms in the crystal (diffraction). Now, thanks to Turner et al., you can also shine some x-ray light on a magnetic sample to detect the arrangement of its electron spins through a method known as lensless imaging. This last example is an equally valid way to "see," but instead of using windows, lenses, or mirrors to manipulate light and construct an image, mathematical formulas are used to describe the effects that particles and fields in the sample have on the light. These formulas have always contained terms that relate to the electron spin of magnetic atoms, but they were previously ignored. Using the full formula allows for the determination of not only crystal structure, but magnetic spin distribution and orientation as well, with a spatial resolution limited only by the wavelength of x-rays used. This promising method can be used at any coherent light source, including modern x-ray free-electron lasers, where ultrashort pulses would freeze-frame magnetic changes, offering the potential for imaging in unprecedented detail the structure and motion of boundaries between regions with different magnetic orientation.

386

Lensless Imaging of Magnetic Nanostructures  

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

Lensless Imaging of Magnetic Nanostructures Print Lensless Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging for the first time to nanometer-scale magnetic structures in an alloy. Many Ways To See You open your eyes and detect the light rays streaming through your bedroom window (transmission), illuminating your socks on the floor (scattering). You put on your glasses (refraction) to detect the state of your image in the mirror (reflection). If you are an ALS scientist, perhaps you go to work and shine some x-ray light on a crystal to detect the arrangement of the atoms in the crystal (diffraction). Now, thanks to Turner et al., you can also shine some x-ray light on a magnetic sample to detect the arrangement of its electron spins through a method known as lensless imaging. This last example is an equally valid way to "see," but instead of using windows, lenses, or mirrors to manipulate light and construct an image, mathematical formulas are used to describe the effects that particles and fields in the sample have on the light. These formulas have always contained terms that relate to the electron spin of magnetic atoms, but they were previously ignored. Using the full formula allows for the determination of not only crystal structure, but magnetic spin distribution and orientation as well, with a spatial resolution limited only by the wavelength of x-rays used. This promising method can be used at any coherent light source, including modern x-ray free-electron lasers, where ultrashort pulses would freeze-frame magnetic changes, offering the potential for imaging in unprecedented detail the structure and motion of boundaries between regions with different magnetic orientation.

387

Lensless Imaging of Magnetic Nanostructures  

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

Lensless Imaging of Magnetic Nanostructures Print Lensless Imaging of Magnetic Nanostructures Print Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging for the first time to nanometer-scale magnetic structures in an alloy. Many Ways To See You open your eyes and detect the light rays streaming through your bedroom window (transmission), illuminating your socks on the floor (scattering). You put on your glasses (refraction) to detect the state of your image in the mirror (reflection). If you are an ALS scientist, perhaps you go to work and shine some x-ray light on a crystal to detect the arrangement of the atoms in the crystal (diffraction). Now, thanks to Turner et al., you can also shine some x-ray light on a magnetic sample to detect the arrangement of its electron spins through a method known as lensless imaging. This last example is an equally valid way to "see," but instead of using windows, lenses, or mirrors to manipulate light and construct an image, mathematical formulas are used to describe the effects that particles and fields in the sample have on the light. These formulas have always contained terms that relate to the electron spin of magnetic atoms, but they were previously ignored. Using the full formula allows for the determination of not only crystal structure, but magnetic spin distribution and orientation as well, with a spatial resolution limited only by the wavelength of x-rays used. This promising method can be used at any coherent light source, including modern x-ray free-electron lasers, where ultrashort pulses would freeze-frame magnetic changes, offering the potential for imaging in unprecedented detail the structure and motion of boundaries between regions with different magnetic orientation.

388

Lensless Imaging of Magnetic Nanostructures  

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

Lensless Imaging of Magnetic Lensless Imaging of Magnetic Nanostructures Lensless Imaging of Magnetic Nanostructures Print Wednesday, 28 March 2012 00:00 Magnetism is useful for many devices and techniques, from electric motors and computer hard drives to magnetic resonance imaging used in medicine. By studying the basics of magnetism, scientists aim to better understand the fundamental physical principles that govern magnetic systems, perhaps leading to important new technologies. The high brightness and coherence of the ALS's soft x-rays have enabled scientists to apply lensless x-ray imaging for the first time to nanometer-scale magnetic structures in an alloy. Many Ways To See You open your eyes and detect the light rays streaming through your bedroom window (transmission), illuminating your socks on the floor (scattering). You put on your glasses (refraction) to detect the state of your image in the mirror (reflection). If you are an ALS scientist, perhaps you go to work and shine some x-ray light on a crystal to detect the arrangement of the atoms in the crystal (diffraction). Now, thanks to Turner et al., you can also shine some x-ray light on a magnetic sample to detect the arrangement of its electron spins through a method known as lensless imaging. This last example is an equally valid way to "see," but instead of using windows, lenses, or mirrors to manipulate light and construct an image, mathematical formulas are used to describe the effects that particles and fields in the sample have on the light. These formulas have always contained terms that relate to the electron spin of magnetic atoms, but they were previously ignored. Using the full formula allows for the determination of not only crystal structure, but magnetic spin distribution and orientation as well, with a spatial resolution limited only by the wavelength of x-rays used. This promising method can be used at any coherent light source, including modern x-ray free-electron lasers, where ultrashort pulses would freeze-frame magnetic changes, offering the potential for imaging in unprecedented detail the structure and motion of boundaries between regions with different magnetic orientation.

389

Light-Triggered Myosin Activation for Probing Dynamic Cellular Processes  

E-Print Network [OSTI]

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

Goguen, Brenda N.

390

Sandia National Laboratories: Sandia Workers Received Entrepreneurial...  

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

* producing power when the sun isn't shining * SAND2013-2696P * solar thermal storage * Solar Two * Southern California Edison Co. Comments are closed. Last Updated: April 3,...

391

Infrared absorption spectra, radiative efficiencies, and global warming potentials  

E-Print Network [OSTI]

. Nutt,3 Keith P. Shine,4 Kevin Smith,5 and Timothy J. Wallington2 Received 17 July 2010; revised 21. Wallington (2010), Infrared absorption spectra, radiative efficiencies, and global warming potentials

Wirosoetisno, Djoko

392

Energy Blog | Department of Energy  

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

Rain and Shine Friday marked the end of the Solar Decathlon competition. Team Germany won (for the second time) in a very competitive field, in a ceremony marked by gray...

393

ARM - Feature Stories and Releases Article  

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

From Shining Sea to Tropical Rain Forest Bookmark and Share On June 28, 2013, an ARM Mobile Facility hosted its final group of visitors at Cape Cod National Seashore. On June 28,...

394

NREL: Workforce Development and Education Programs - News Release...  

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

May 24, 2013 Middle Schoolers Shine in Electric Car Races Solar and lithium-ion powered vehicles blaze down the tracks despite clouds overhead. May 18, 2013 Solar and...

395

NNSA Awards Additional Support to Accelerate the Development...  

National Nuclear Security Administration (NNSA)

million to NorthStar to further develop its technology to produce Mo-99 via neutron capture, bringing the total NNSA support to this project to 16.1 million. SHINE Medical...

396

U.S. Department of Energy Categorical Exclusion ...  

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

and Inorganics Savannah River Site AikenAikenSouth Carolina A Kaiser Optic Fourier Transform Raman (FT-Raman) spectrometer will be used to shine a weak (0-400 mWatts) laser (785...

397

CX-010650: Categorical Exclusion Determination | Department of...  

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

South Carolina Offices(s): Savannah River Operations Office A Kaiser Optic Fourier Transform Raman (FT-Raman) spectrometer will be used to shine a weak (0-400 mWatts) laser (785...

398

Abstract A15: An innovative intervention to promote breast cancer screening in Chinese American women  

Science Journals Connector (OSTI)

...meeting-abstract Behavioral and Social Science Cancer Communications Cancer Communications...Abstracts: Sixth AACR Conference: The Science of Cancer Health Disparities; December...shines a new light to patient education science that a two-way communication exchange...

Helen Lam; Lisa Hinton; Karen Kim

2014-11-01T23:59:59.000Z

399

ENLACE Mentor Project **.......................................................... Student Affairs  

E-Print Network [OSTI]

.............................. .. Engineering and Computer Science 8 8 Project SHINE Grant Programs A guide to Student Enrichment, Pre-Professional and Research Opportunities at CSUF: Students must have graduated from the Santa Ana School District and pursuing higher education. Benefits

de Lijser, Peter

400

EECBG Success Story: Sundance, Skiing and Solar: Park City to Install New PV System  

Broader source: Energy.gov [DOE]

The mountain paradise of Park City, Utah - best known for its sensational skiing and annual Sundance Film Festival - is quickly becoming a shining example of environmental sustainability. Learn more.

Note: This page contains sample records for the topic "all-stars shine bright" 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

NATURE MEDICINE VOLUME 7 NUMBER 5 MAY 2001 525 BOOK REVIEW  

E-Print Network [OSTI]

a fascinating story. There is an old saying to the effect that truth is like daylight shining behind a curtain seems a good solution. Folkman was clearly capable of that type of thinking and he showed, even early

Nowak, Martin A.

402

DOE Announces up to $52.5 Million for Concentrating Solar Power...  

Office of Environmental Management (EM)

include low-cost energy storage, which allows them to provide electricity even when the sun is not shining. CSP technologies currently used in utility-scale power plants typically...

403

Energy Basics | Department of Energy  

Office of Environmental Management (EM)

on the south and west sides will help keep your house cool in the summer and allow sun to shine through the windows in the winter. Landscaping Tips: Landscaping Energy 101...

404

Tips: Landscaping | Department of Energy  

Office of Environmental Management (EM)

on the south and west sides will help keep your house cool in the summer and allow sun to shine through the windows in the winter. Buildings and trees-natural partners....

405

Using Passive Solar Design to Save Money and Energy | Department...  

Office of Environmental Management (EM)

a typical home Let's Get Down to the Basics A passive solar home collects heat as the sun shines through south-facing windows and retains it in materials that store heat, known...

406

Argonne researchers use real-world data to model the effect of...  

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

we add more electricity from renewable sources that can only make electricity when the sun shines or the wind blows, researchers from the U.S. Department of Energy's Argonne...

407

CUT FLOWER CULTURAL PRACTICE EXPERIMENTS, 2006 Department of Horticulture  

E-Print Network [OSTI]

1 CUT FLOWER CULTURAL PRACTICE EXPERIMENTS, 2006 H.C. Wien Department of Horticulture Cornell in a greenhouse by using blackout curtains at the end of the day, or shining artificial light on them after dark

Pawlowski, Wojtek

408

HotSpot | Department of Energy  

Office of Environmental Management (EM)

incorporates Federal Guidance Reports 11, 12, and 13 (FGR-11, FGR-12, FGR-13) Dose Conversion Factors (DCFs) for inhalation, submersion, and ground shine. FGR-12 DCF values are...

409

Photo of the Week: the 2014 Washington Auto Show | Department...  

Energy Savers [EERE]

learn about energy and earn merit badges and patches. In this photo, a Boy Scout watches light shine on a solar panel that's powering a hydrogen fuel cell system, showing how...

410

Photo of the Week: Air Supply | Department of Energy  

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

learn about energy and earn merit badges and patches. In this photo, a Boy Scout watches light shine on a solar panel that's powering a hydrogen fuel cell system, showing how...

411

Energy 101: Solar PV  

ScienceCinema (OSTI)

Solar photovoltaic (PV) systems can generate clean, cost-effective power anywhere the sun shines. This video shows how a PV panel converts the energy of the sun into renewable electricity to power homes and businesses.

None

2013-05-29T23:59:59.000Z

412

PI Research Organisation Project Title NE/J024678/1 Dr Christopher Davis University of Reading Driving space weather forecasts with real data  

E-Print Network [OSTI]

Lead Grant Reference PI Research Organisation Project Title NE/J024678/1 Dr Christopher Davis Troposphere and the Routing of Aircraft (EXTRA)Professor Keith Shine University of Reading NE/J023760

413

E-Print Network 3.0 - aspect ratio hydrogen Sample Search Results  

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

Summary: of fuel cells is an extremely important aspect in the production of hydrogen. Fuel cells function... HYDROGEN There is a good chance that hydrogen will be the shining...

414

Subwavelength optical microscopy in the far field  

E-Print Network [OSTI]

We present a procedure for subwavelength optical microscopy. The identical atoms are distributed on a plane and shined with a standing wave. We rotate the plane to different angles and record the resonant fluorescence spectra in the far field, from...

Sun, Qingqing; Al-Amri, M.; Scully, Marlan O.; Zubairy, M. Suhail.

2011-01-01T23:59:59.000Z

415

On the role of Mn(IV) vacancies in the photoreductive dissolution of hexagonal birnessite  

E-Print Network [OSTI]

2005) Perovskites - Oxygen vacancies shine blue. Nat. Mater.Ciccacci F. (2007) Oxygen vacancies and induced changes inTiO 2 doped by N, Nd, and vacancy. Solid State Commun. 136,

Kwon, K.D.

2009-01-01T23:59:59.000Z

416

Neutrino Theory  

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

operators in the Lagrangian (Majorana mass terms), or both. The ongoing neutrinoless double-beta decay searches may be able to shine light on the matter. But the neutrino sector...

417

Simulating Urban Environments for Energy Analysis  

E-Print Network [OSTI]

compute the fraction of light energy transmitted along theregion. To evaluate the light energy shining on buildings,Given the light intensity from 2.3, the energy transfer to

Weber, Gunther H.

2014-01-01T23:59:59.000Z

418

CSP Report  

Energy Savers [EERE]

thousands of customers in the United States with reliable renewable energy-even when the sun isn't shining. The United States is particularly well suited for CSP because it...

419

The Year of Concentrating Solar Power: Five New Plants to Power...  

Office of Environmental Management (EM)

a power block to generate electricity. The technology can generate energy even when the sun isn't shining, helping to provide clean power at times of peak demand. We recently...

420

Carl Gagliardi Modern Particle  

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

Carl Gagliardi Modern Particle Accelerators and Detectors A Household Survey Carl A. Gagliardi 2 Carl Gagliardi Alyson Clarke * High school All Star swimmer * My niece To do well...

Note: This page contains sample records for the topic "all-stars shine bright" 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

Comparison of radiological dose pathways for tank farm accidents  

SciTech Connect (OSTI)

This calculation note documents an evaluation of the doses from submersion and ground shine due to a release of tank farm radioactive materials, and a comparison of these doses to the doses from inhalation of the materials. The submersion and ground shine doses are insignificant compared to the inhalation doses. The doses from resuspension are also shown to be negligible for the tank farm analysis conditions.

Van Keuren, J.C.

1996-10-30T23:59:59.000Z

422

Multi-wavelength observations of 3C 279 during the extremely bright gamma-ray flare in 2014 March-April  

E-Print Network [OSTI]

The well studied blazar 3C 279 underwent a giant $\\gamma$-ray outburst in 2014 March-April. The measured $\\gamma$-ray flux (1.21 $\\pm$ 0.10 $\\times$ 10$^{-5}$ ph cm$^{-2}$ s$^{-1}$ in 0.1-300 GeV energy range) is the highest detected from 3C 279 by Fermi Large Area Telescope. Hour scale $\\gamma$-ray flux variability are observed, with a flux doubling time as short as 1.19 $\\pm$ 0.36 hours detected during one flare. The $\\gamma$-ray spectrum is found to be curved at peak of the flare suggesting low probability of detecting very high energy (VHE; E $>$ 100 GeV) emission, which is further confirmed by the Very Energetic Radiation Imaging Telescope Array System observations. The $\\gamma$-ray flux increased by more than an order in comparison to low activity state and the flare consists of multiple sub-structures having fast rise and slow decay profile. The flux enhancement is seen in all the wavebands though at a lesser extent compared to $\\gamma$-rays. During the flare, a considerable amount of the kinetic jet p...

Paliya, Vaidehi S; Stalin, C S

2015-01-01T23:59:59.000Z

423

THE ChaMPlane BRIGHT X-RAY SOURCES-GALACTIC LONGITUDES l = 2 Degree-Sign -358 Degree-Sign  

SciTech Connect (OSTI)

The Chandra Multi-wavelength Plane (ChaMPlane) survey aims to constrain the Galactic population of mainly accretion-powered, but also coronal, low-luminosity X-ray sources (L{sub X} {approx}< 10{sup 33} erg s{sup -1}). To investigate the X-ray source content in the plane at fluxes F{sub X} {approx}> 3 Multiplication-Sign 10{sup -14} erg s{sup -1} cm{sup -2}, we study 21 of the brightest ChaMPlane sources, viz., those with >250 net counts (0.3-8 keV). By excluding the heavily obscured central part of the plane, our optical/near-infrared follow-up puts useful constraints on their nature. We have discovered two likely accreting white dwarf binaries. CXOPS J154305.5-522709 (CBS 7) is a cataclysmic variable showing periodic X-ray flux modulations on 1.2 hr and 2.4 hr; given its hard spectrum the system is likely magnetic. We identify CXOPS J175900.8-334548 (CBS 17) with a late-type giant; if the X-rays are indeed accretion powered, it belongs to the small but growing class of symbiotic binaries lacking strong optical nebular emission lines. CXOPS J171340.5-395213 (CBS 14) is an X-ray transient that brightened {approx}>100 times. We tentatively classify it as a very late type (>M7) dwarf, of which few have been detected in X-rays. The remaining sources are (candidate) active galaxies, normal stars and active binaries, and a plausible young T Tauri star. The derived cumulative number density versus flux (log N-log S) relation for the Galactic sources appears flatter than expected for an isotropic distribution, indicating that we are seeing a non-local sample of mostly coronal sources. Our findings define source templates that we can use, in part, to classify the >10{sup 4} fainter sources in ChaMPlane.

Van den Berg, Maureen [Astronomical Institute 'Anton Pannekoek', University of Amsterdam, Science Park 904, 1098 XH, Amsterdam (Netherlands); Penner, Kyle [Department of Astronomy, University of Arizona, 933 N. Cherry Ave., Tucson, AZ 85721 (United States); Hong, JaeSub; Grindlay, Jonathan E.; Zhao, Ping; Servillat, Mathieu [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Laycock, Silas, E-mail: maureen@head.cfa.harvard.edu [Department of Physics, University of Massachusetts, Lowell (United States)

2012-03-20T23:59:59.000Z

424

Submm-bright X-ray absorbed QSOs at z~2: insights into the co-evolution of AGN and star-formation  

E-Print Network [OSTI]

We have assembled a sample of 5 X-ray-absorbed and submm-luminous type 1 QSOs at $z \\sim 2$ which are simultaneously growing their central black holes through accretion and forming stars copiously. We present here the analysis of their rest-frame UV to submm Spectral Energy Distributions (SEDs), including new Herschel data. Both AGN (direct and reprocessed) and Star Formation (SF) emission are needed to model their SEDs. From the SEDs and their UV-optical spectra we have estimated the masses of their black holes $M_{BH}\\sim 10^{9}-10^{10}\\,M_{\\odot}$, their intrinsic AGN bolometric luminosities $L_{BOL}\\sim(0.8 - 20)\\times 10^{13} L_{\\odot}$, Eddington ratios $L_{BOL}/L_{Edd}\\sim 0.1 - 1.1$ and bolometric corrections $L_{BOL}/L_{X,2-10}\\sim 30 - 500$. These values are common among optically and X-ray-selected type 1 QSOs (except for RX~J1249), except for the bolometric corrections, which are higher. These objects show very high far-infrared luminosities $L_{FIR}\\sim$ (2 - 8)$\\times10^{12}\\,M_{\\odot}$ and Star...

Khan-Ali, A; Page, M J; Stevens, J A; Mateos, S; Symeonidis, M; Orjales, J M Cao

2015-01-01T23:59:59.000Z

425

The Complete Census of 70-um-Bright Debris Disks within the FEPS (Formation and Evolution of Planetary Systems) Spitzer Legacy Survey of Sun-like Stars  

E-Print Network [OSTI]

(abbreviated) We report detection with the Spitzer Space Telescope of cool dust surrounding solar type stars. The observations were performed as part of the Legacy Science Program, ``Formation and Evolution of Planetary Systems'' (FEPS). From the overall FEPS sample (Meyer et al. 2006) of 328 stars having ages ~0.003-3 Gyr we have selected sources with 70 um flux densities indicating excess in their spectral energy distributions above expected photospheric emission........ .....The rising spectral energy distributions towards - and perhaps beyond - 70 um imply dust temperatures T_dust temperature, location, fractional luminosity, and mass of the dust from fitted single temperature blackbody models. For >1/3 of the debris sources we find that multiple temperature components are suggested, implying a spatial distribution of dust extending over many tens of AU. Because the disks are dominated by collisional processes, the parent body (planetesimal) belts may be extended as well. Preliminary assessment of the statistics of cold debris around sun-like stars shows that ~10% of FEPS targets with masses between 0.6 and 1.8 Msun and ages between 30 Myr and 3 Gyr exhibit 70 um emission in excess of the expected photospheric flux density. We find that fractional excess amplitudes appear higher for younger stars and that there may be a trend in 70 um excess frequency with stellar mass.

Lynne A. Hillenbrand; John M. Carpenter; Jinyoung Serena Kim; Michael R. Meyer; Dana E. Backman; Amaya Moro-Martin; David J. Hollenbach; Dean C. Hines; Ilaria Pascucci; Jeroen Bouwman

2007-12-30T23:59:59.000Z

426

The Bright Gamma-Ray Burst 991208 - Tight Constraints on Afterglow Models from Observations of the Early-Time Radio Evolution  

E-Print Network [OSTI]

The millimeter wavelength emission from GRB 991208 is the second brightest ever detected, yielding a unique data set. We present here well-sampled spectra and light curves over more than two decades in frequency for a two-week period. This data set has allowed us for the first time to trace the evolution of the characteristic synchrotron self-absorption frequency nu_a and peak frequency nu_m, and the peak flux density F_m: we obtain nu_a \\propto t^{-0.15 +- 0.12}, nu_m \\propto t^{-1.7 +- 0.4}, and $_m \\propto t^{-0.47 +- 0.11}. From the radio data we find that models of homogeneous or wind-generated ambient media with a spherically symmetric outflow can be ruled out. A model in which the relativistic outflow is collimated (a jet) can account for the observed evolution of the synchrotron parameters, the rapid decay at optical wavelengths, and the observed radio to optical spectral flux distributions that we present here, provided that the jet transition has not been fully completed in the first two weeks after the event. These observations provide additional evidence that rapidly decaying optical/X-ray afterglows are due to jets and that such transitions either develop very slowly or perhaps never reach the predicted asymptotic decay F(t) \\propto t^{-p}.

T. J. Galama; M. Bremer; F. Bertoldi; K. M. Menten; U. Lisenfeld; D. S. Shepherd; B. Mason; F. Walter; G. G. Pooley; D. A. Frail; R. Sari; S. R. Kulkarni; E. Berger; J. S. Bloom; A. J. Castro-Tirado; J. Granot

2000-06-14T23:59:59.000Z

427

Bright green-emitting, energy transfer and quantum cutting of Ba3Ln(PO4)3: Tb3+ (Ln = La, Gd) under VUV-UV excitation  

Science Journals Connector (OSTI)

Tb3+ doped Ba3Gd(PO4)3 and Ba3La(PO4)3 phosphors were synthesized using the traditional high temperature...

Hou, Dejian; Liang, Hongbin; Xie, Mubiao; Ding, Xuemei; Zhong, Jiuping; Su, Qiang; Tao, Ye; Huang, Yan; Gao, Zhenhua

2011-01-01T23:59:59.000Z

428

Morphological diversity of cell types in macaque monkey visual system  

E-Print Network [OSTI]

MicroBrightField, Williston, VT). Shrinkage correction,software (MicroBrightField, Williston, VT). Quantificationssoftware (MicroBrightField, Williston, VT) to examine the

Nhan, Hoang Luat

2010-01-01T23:59:59.000Z

429

Contributions of early parallel pathways to extrastriate visual cortex in macaque monkey  

E-Print Network [OSTI]

MicroBrightField, Williston, VT). For the fluorescentsoftware (MicroBrightField, Williston, VT). Only cell bodiessoftware (MicroBrightField, Williston, VT). Reconstructions

Nassi, Jonathan J.

2007-01-01T23:59:59.000Z

430

The architecture of the mouse trigeminal-facial brainstem : disynaptic circuitry, genomic organization, and follicle mechanics  

E-Print Network [OSTI]

MicroBrightField Inc. , Williston, VT). Brain traces wereMicroBrightField, Inc. , Williston, VT) according to the

Matthews, David William; Matthews, David William

2012-01-01T23:59:59.000Z

431

Social behavior from a comparative neuroanatomical perspective : the amygdala in human evolution  

E-Print Network [OSTI]

software (MicroBrightField,Williston, VT) using the 1x andsuite (MicroBrightField,Williston, VT). The anatomical

Barger, Nicole L.

2012-01-01T23:59:59.000Z

432

 

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

Kaiser Optic Fourier Transform Raman (FT-Raman) spectrometer will be use to shine a weak (0 - 400 mWatts) laser (785 nm) to 0.25 mm^2 area of Kaiser Optic Fourier Transform Raman (FT-Raman) spectrometer will be use to shine a weak (0 - 400 mWatts) laser (785 nm) to 0.25 mm^2 area of sample and then observed the scattered light. The sample can be sludge, saltcake, supernate, salt solution, organics (including polymers), inorganics (including nanomaterials), organometallics, organoceramics, metals, cerment (ceramic-metals), gases, and energetic materials ( including heat , pressure, electric field, radiation, oxygen, and magnetic field sensitive). The scattered light is detected, measured, and analyzed for determining molecular composition of the sample. Theoretically, the process of shining light on a sample could deposit enough energy to excite the sample and sample locally decomposes into gases and other solid byproducts. Radioactive and/or mixed samples are always analyzed inside a radioactive hood

433

Notice of Intent to Issue Funding Opportunity for Integrated PV and Energy Storage Systems  

Broader source: Energy.gov [DOE]

As solar power plants proliferate, the variability and uncertainty of the solar resource poses challenges for integrating PV with electric power systems at both the distribution and bulk system levels. In response to these challenges, the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy (EERE) has issued a notice of intent (NOI) to release the SunShot Sustainable and Holistic IntegratioN of Energy storage and Solar (SHINES) funding opportunity. SHINES will enable the holistic design, development, and widespread sustainable deployment of low-cost, flexible, and reliable energy storage solutions, and will strive to successfully integrate these solutions into PV power plants. SHINES projects can also focus on demand response and load management to achieve target metrics.

434

OPEN GOVERNMENT | Department of Energy  

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

OPEN GOVERNMENT OPEN GOVERNMENT OPEN GOVERNMENT Sun Shines through the Capitol Building | Credit: GC Photographer Daniel Zazueta Sun Shines through the Capitol Building | Credit: GC Photographer Daniel Zazueta The Office of the General Counsel is proud to provide the public with access to its governmental processes and information. On January 21, 2009, President Barack Obama issued a Memorandum on Transparency and Open Government, where he pledged, "My Administration is committed to creating an unprecedented level of openness in Government. We will work together to ensure the public trust and establish a system of transparency, public participation, and collaboration. Openness will strengthen our democracy and promote efficiency and effectiveness in Government." The Department

435

Hadron Production at Fixed Target Energies and Extensive Air Showers  

E-Print Network [OSTI]

NA61/SHINE is a fixed-target experiment to study hadron production in hadron-nucleus and nucleus-nucleus collisions at the CERN SPS. Due to the very good acceptance and particle identification in forward direction, NA61/SHINE is well suited for measuring particle production to improve the reliability of air shower simulations. Data with proton and pion beams have been taken in 2007 and 2009. First analysis results for the pion yield in proton-carbon interactions at 31 GeV will be shown and compared to predictions from models used in air shower simulations.

M. Unger; for the NA61/SHINE Collaboration

2010-12-12T23:59:59.000Z

436

Property:Incentive/Cont2Addr | Open Energy Information  

Open Energy Info (EERE)

Addr Addr Jump to: navigation, search Property Name Incentive/Cont2Addr Property Type String Pages using the property "Incentive/Cont2Addr" Showing 25 pages using this property. (previous 25) (next 25) A AEP (Central and North) - CitySmart Program (Texas) + 400 All Star Road + AEP (Central, North and SWEPCO) - Commercial Solutions Program (Texas) + 400 All Star Road + AEP SWEPCO - CitySmart Program (Texas) + 1111 Louisiana Street + AEP SWEPCO - Commercial Solutions Program (Texas) + 400 All Star Road + AEP SWEPCO - SCORE Program (Texas) + 400 All Star Road + AEP Texas - Commercial and Industrial Energy Efficiency Rebate Program (Texas) + 910 Energy Drive + AEP Texas Central Company - CitySmart Program (Texas) + 1111 Louisiana Street + AEP Texas Central Company - Commercial Solutions Program (Texas) + 1111 Louisiana Street +

437

Lauren Andersen | Department of Energy  

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

Lauren Andersen About Us Lauren Andersen - Policy Advisor at White House Office of Science and Technology Policy Most Recent STEM Women All-Stars Hit the Road April 30...

438

CORONAL ABUNDANCES IN ORION NEBULA CLUSTER STARS A. Maggio,1  

E-Print Network [OSTI]

pattern of abundances for all stars, although a weak dependence on flare loop size may be present. The abundance of calcium is the only one which appears to vary substantially between stars, but this quantity

Micela, Giusi

439

Draft version March 16, 2007 Preprint typeset using L A T E X style emulateapj v. 03/07/07  

E-Print Network [OSTI]

pattern of abundances for all stars, although a weak dependence on flare loop size may be present. The abundance of calcium is the only one which appears to vary substantially between stars, but this quantity

440

EXPLORING THE CENTRAL SUB-PARSEC REGION OF THE {gamma}-RAY BRIGHT RADIO GALAXY 3C 84 WITH VLBA AT 43 GHz IN THE PERIOD OF 2002-2008  

SciTech Connect (OSTI)

Following the discovery of a new radio component right before the GeV {gamma}-ray detection since 2008 August by the Fermi Gamma-ray Space Telescope, we present a detailed study of the kinematics and light curve on the central sub-parsec scale of 3C 84 using the archival Very Long Baseline Array 43 GHz data covering the period between 2002 January and 2008 November. We find that the new component 'C3', previously reported by the observations with the Very Long Baseline Interferometer Exploration of Radio Astrometry, was already formed in 2003. The flux density of C3 increases moderately until 2008, and then it becomes brighter rapidly after 2008. The radio core, C1, also shows a similar trend. The apparent speed of C3 with reference to the core C1 shows moderate acceleration from 0.10c to 0.47c between 2003 November and 2008 November, but is still sub-relativistic. We further try to fit the observed broadband spectrum by the one-zone synchrotron self-Compton model using the measured apparent speed of C3. The fit can reproduce the observed {gamma}-ray emission, but does not agree with the observed radio spectral index between 22 and 43 GHz.

Suzuki, Kenta [Institute of Astronomy, University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015 (Japan); Nagai, Hiroshi; Kino, Motoki; Kobayashi, Hideyuki [National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588 (Japan); Kataoka, Jun [Research Institute for Science and Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555 (Japan); Asada, Keiichi; Inoue, Makoto [Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan, R.O.C. (China); Doi, Akihiro [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Yoshinodai 3-1-1, Chuo-ku, Sagamihara 252-5210 (Japan); Orienti, Monica; Giovannini, Gabriele; Giroletti, Marcello [INAF Istituto di Radioastronomia, via Gobetti 101, 40129 Bologna (Italy); Laehteenmaeki, Anne; Tornikoski, Merja; Leon-Tavares, Jonathan [Aalto University Metsaehovi Radio Observatory, Metsaehovintie 114, FIN-02540 Kylmaelae (Finland); Bach, Uwe [Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, 53121 Bonn (Germany); Kameno, Seiji [Faculty of Science, Kagoshima University, 1-21-35 Korimoto, Kagoshima 890-0065 (Japan)

2012-02-20T23:59:59.000Z

Note: This page contains sample records for the topic "all-stars shine bright" 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

UV-BRIGHT NEARBY EARLY-TYPE GALAXIES OBSERVED IN THE MID-INFRARED: EVIDENCE FOR A MULTI-STAGE FORMATION HISTORY BY WAY OF WISE AND GALEX IMAGING  

SciTech Connect (OSTI)

In the local universe, 10% of massive elliptical galaxies are observed to exhibit a peculiar property: a substantial excess of ultraviolet emission than what is expected from their old, red stellar populations. Several origins for this ultraviolet excess (UVX) have been proposed including a population of hot young stars and a population of old, blue horizontal branch or extended horizontal branch (BHB or EHB) stars that have undergone substantial mass loss from their outer atmospheres. We explore the radial distribution of UVX in a selection of 49 nearby E/S0-type galaxies by measuring their extended photometry in the UV through mid-infrared (mid-IR) with the Galaxy Evolution Explorer (GALEX), the Sloan Digital Sky Survey, and the Wide-field Infrared Survey Explorer (WISE). We compare UV/optical and UV/mid-IR colors with the Flexible Stellar Population Synthesis models, which allow for the inclusion of EHB stars. We find that combined WISE mid-IR and GALEX UV colors are more effective in distinguishing models than optical colors, and that the UV/mid-IR combination is sensitive to the EHB fraction. There are strong color gradients, with the outer radii bluer than the inner half-light radii by {approx}1 mag. This color difference is easily accounted for with an increase in the BHB fraction of 0.25 with radius. We estimated that the average ages for the inner and outer radii are 7.0 {+-} 0.3 Gyr, and 6.2 {+-} 0.2 Gyr, respectively, with the implication that the outer regions are likely to have formed {approx}1 Gyr after the inner regions. Additionally, we find that metallicity gradients are likely not a significant factor in the color difference. The separation of color between the inner and outer regions, which agrees with a specific stellar population difference (e.g., higher EHB populations), and the {approx}0.5-2 Gyr age difference suggests multi-stage formation. Our results are best explained by inside-out formation: rapid star formation within the core at early epochs (>4 Gyr ago) and at least one later stage starburst event coinciding with z {approx} 1.

Petty, S. M.; Farrah, D. G. [Department of Physics, Virginia Tech, Blacksburg, VA 24061 (United States); Neill, J. D.; Bridge, C. R. [Division of Physics, Math, and Astronomy, California Institute of Technology, Pasadena, CA 91125 (United States); Jarrett, T. H.; Tsai, C.-W. [Astronomy Department, University of Cape Town, Rondebosch 7701 (South Africa); Blain, A. W. [Department of Physics and Astronomy, University of Leicester, Leicester LE1 7RH (United Kingdom); Rich, R. M.; Lake, S. E.; Wright, E. L. [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States); Benford, D. J. [NASA, Goddard Space Flight Center, Greenbelt, MD 20771 (United States); Masci, F. J. [IPAC, California Institute of Technology, Pasadena, CA 91125 (United States)

2013-10-01T23:59:59.000Z

442

This paper presents the realization and comprehensive characterization of a compact bright source of ultrafast synchrotron radiation with appreciable degree of spatial coherence. It has been drawn to our attention that we had inadvertently neglected to ci  

E-Print Network [OSTI]

of synchrotron X-ray radiation from relativistic laser-plasma interaction and laser-accelerated electrons. Phys oscillations of electrons accelerated in laser wakefields characterized by spectral X-ray analysis. Phys. Rev measurement based on Fresnel diffraction from laser-based synchrotron radiation demonstrating the resolution

Loss, Daniel

443

20 ENGINEERING & SCIENCE SUMMER 2013 21SUMMER 2013 ENGINEERING & SCIENCE  

E-Print Network [OSTI]

energy. Dark matter is the unseen stuff that makes up 27 percent of the cosmos. Dark energy for the nuclear reactions that keep the sun shining and for radioactive decay, which generates the energy particles, including electrons, neutrinos, quarks, and the Higgs boson, the probable discovery of which

444

JOURNAL OF GEOPHYSICAL RESEARCH, VOL. ???, XXXX, DOI:10.1029/, Isotopic Fractionations in the TTL in cloud-resolving  

E-Print Network [OSTI]

. The results suggest that the sublimation of relatively enriched ice associated with deep convection affects and chemistry of the stratosphere and also of the earth as a whole [e.g., Forster and Shine, 1999; Kirk], hydration by overshooting deep convection through the in- jection and subsequent sublimation of ice [e

Blossey, Peter

445

Physics on Stage: Fsica en Accin increases the public's awareness of science  

Science Journals Connector (OSTI)

Physics on Stage: Fsica en Accin increases the public's awareness of science Competition: Winner takes a trip to CERN Ireland: TruePhysics makes life simpler Czech Republic: Technology fun day highlights demand for new science centre Literary Festival: Physicists visit Hay while the Sun shines Science on Stage: Science takes stage in Germany National Convention: NSTA connects science to world Forthcoming Events

446

Storing Renewable Energy in Chemical Bonds  

ScienceCinema (OSTI)

With nearly 7 billion people, the world's population is demanding more electricity every year. Improved technologies are bringing wind and solar power to our electrical grid. However, wind turbines and solar panels only work when the wind blows or the sun shines. PNNL scientists discuss catalysis approaches for storing and releasing energy on demand.

Helm, Monte; Bullock, Morris

2014-06-13T23:59:59.000Z

447

Additional evidence on the use of personal ornaments in the Middle Paleolithic of North Africa  

Science Journals Connector (OSTI)

...the presence of a marine shell belonging...smoothed by the use wear, suggesting...by bioeroders, marine encrustations, use wear, tool marks...chronology; MIS , marine isotope stage...heating; UseW, use-wear; a, shine on prominent...

Francesco d'Errico; Marian Vanhaeren; Nick Barton; Abdeljalil Bouzouggar; Henk Mienis; Daniel Richter; Jean-Jacques Hublin; Shannon P. McPherron; Pierre Lozouet

2009-01-01T23:59:59.000Z

448

Hematite-based Photo-oxidation of Water Using Transparent Distributed Current Collectors  

E-Print Network [OSTI]

. Martinson*,, Argonne-Northwestern Solar Energy Research (ANSER) Center and § Department of Chemistry growing energy demand, but large scale solar energy utilization is constrained by two key challenges: supplying energy while the sun is not shining (i.e., energy storage) and efficiently converting solar

449

Halley's Comet  

Science Journals Connector (OSTI)

......was the first to see the comet (on Christmas Day 1758) it marked the triumph of Newton's...2 14.6 17.2 0.003(?) Speed of light = 2.998 x 105 km s~' Astronomical...perhaps on another sheet. 6. When a light bulb shines inside a lampshade with an......

ALISTAIR CARR

1985-01-01T23:59:59.000Z

450

A Christmas Visit to Ben Nevis Observatory  

Science Journals Connector (OSTI)

... the mist into the brightest of daylight. Overhead the sky was blue, a fresh light breeze was blowing, and the reflected sunlight was shining in silvery masses on the ... watching the observers at work, in dining (which we did very comfortably off the Christmas cheer, viz. roast turkey and plum pudding, provided for the inhabitants of Ben ...

G. CHRYSTAL

1884-01-03T23:59:59.000Z

451

Star-forming galaxies in the local universe  

Science Journals Connector (OSTI)

......diagrams will shine further light on the excitation by shocks...outer spiral arms, and UV light traces not only the youngest...use a modified version of the Christmas cake model of an Hii region...emission. Figure 4 Modified Christmas cake model of an Hii region......

Linda J Smith; Johan H Knapen

2006-04-01T23:59:59.000Z

452

We're dreaming of a green Christmas  

E-Print Network [OSTI]

Greenlines We're dreaming of a green Christmas With Christmas fast approaching, our offices and homes will soon be decorated with the glittering lights and shining baubles that are key to celebrating the festive season. But Christmas is often a time of excess which can have a heavy toll on our planet as well

Talbot, James P.

453

The Sun -II Alexei Gilchrist  

E-Print Network [OSTI]

The Sun - II Alexei Gilchrist #12;Some resources · http://www.nineplanets.org/sol.html · "The Universe: Secrets of the Sun" video ­ Search on youtube (references are to clips here http in these slides Secrets of the Sun #12;Why does the sun shine? Long and fascinating history involving - geology

Wardle, Mark

454

Will-o'-the-Wisp: an ancient mystery with extremophile origins?  

Science Journals Connector (OSTI)

...from the analytical data in conjunction with...shining without heat in a text on optics...the spontaneous combustion of marsh gas, or...the emanation of heat. Several observers...touch afterwards. Combustion: many accounts...spontaneous ignition of hydrocarbons produced from decomposition...

2014-01-01T23:59:59.000Z

455

In-situ measurements of the mixing state and optical properties of soot with implications for radiative forcing estimates  

Science Journals Connector (OSTI)

...of fresh soot emissions from diesel trucks (24). Temporal Characteristics...Asian climate and hydrological cycle . Proc Natl Acad Sci USA 102 : 5326...Edwards JM Shine KP ( 1997 ) General circulation model calculations of the direct...mode particles from heavy duty diesel vehicles using aerosol time-of-flight...

Ryan C. Moffet; Kimberly A. Prather

2009-01-01T23:59:59.000Z

456

A Novel Kind of Dye Dr. Rainer Glaser, Department of Chemistry, University of Missouri Columbia  

E-Print Network [OSTI]

. The higher the frequency of the light, the higher is its energy. Violet light is on the high-energy side of the visible spectrum. The energy of ultraviolet light, just outside the visible range on the high-energy side; we create materials that emit light with twice the energy of the source light. Shining infrared laser

Glaser, Rainer

457

Noninvasive Diagnosis of Actionable Mutations by Deep Sequencing of Circulating Free DNA in Lung Cancer from Never-Smokers: A Proof-of-Concept Study from BioCAST/IFCT-1002  

Science Journals Connector (OSTI)

...with ANNOVAR (27). For the detection of ultra-low frequency variations in cfDNA, an...1432-8. 31. Bragg LM , Stone G, Butler MK, Hugenholtz P Tyson GW.Shining a light...Kim H-R , Lee SY, Hyun D-S, Lee MK, Lee H-K, Choi C-M, et alDetection...

Sbastien Couraud; Felipe Vaca-Paniagua; Stphanie Villar; Javier Oliver; Tibor Schuster; Hlne Blanch; Nicolas Girard; Jean Trdaniel; Laurent Guilleminault; Radj Gervais; Nathalie Prim; Michel Vincent; Jacques Margery; Sbastien Lariv; Pascal Foucher; Bernard Duvert; Maxime Vallee; Florence Le Calvez-Kelm; James McKay; Pascale Missy; Franck Morin; Grard Zalcman; Magali Olivier; and Pierre-Jean Souquet

2014-09-01T23:59:59.000Z

458

Evolutionary innovations of squamate reproductive and developmental biology in the family Chamaeleonidae  

E-Print Network [OSTI]

development (Ricklefs, 1987; Bay et al., 2006). Comparative studies on convergence are important because, this includes the evolution of genetic and temperature-dependent sex determination (Pokorná & Kratochvíl, 2009 & Wiens, 2008) and viviparity (Lee & Shine, 1998). Squamate reptiles (lizards and snakes) have been used

Andrews, Robin

459

Ecology, 83(10), 2002, pp. 28082815 2002 by the Ecological Society of America  

E-Print Network [OSTI]

IT HOT: EFFECTS OF FOREST CLEARING ON NEST TEMPERATURES OF MONTANE REPTILES RICHARD SHINE,1 ELIZABETH G of montane organisms, especially if those limits are set directly by temperature. Oviparous (egg in potential nest sites. Orientation and exposure were the most important determinants of nest temperature

Shine, Rick

460

Volume 130, Number 16 tech.mit.edu Friday, April 2, 2010 Oldest and Largest  

E-Print Network [OSTI]

of the health reform bill have yet to be felt, the passage of the bill shined a hard light on health care who has worked extensively with Democrats on health care reform. "The U.S. government now takes health's conse- quences by conducting new research and looking for new ways to fix health care ineffi- ciencies

Ishii, Hiroshi

Note: This page contains sample records for the topic "all-stars shine bright" 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

Competition: School team launches a rocket  

Science Journals Connector (OSTI)

Competition: School team launches a rocket Conference: Norway focuses on physics teaching Science on Stage: Canadian science acts take to the stage Particle Physics: Teachers get a surprise at CERN Teaching: Exploring how students learn physics University: Oxford opens doors to science teachers Lasers: Lasers shine light on meeting Science Fair: Malawi promotes science education

462

Local functional input to neurons in deep layers of rat visual cortex  

E-Print Network [OSTI]

MicroBrightField, Inc. , Williston, VT; see Figs. 2.1B,MicroBrightField, Williston, VT). Each reconstructionsystem (MicroBrightField, Williston, VT). Each neuronal

Zarrinpar, Amir

2006-01-01T23:59:59.000Z

463

E-Print Network 3.0 - ahwaz sandstone member Sample Search Results  

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

sections of Arizona are assigned to the Tapeats Sandstone and overlying Bright Angel Shale... ) or to the Tapeats Sandstone--Bright Angel Shale (Stewart, 1970; Palmer and...

464

E-Print Network 3.0 - automatic fuzzy rule Sample Search Results  

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

PROCESSING TO PREDICT PULP BRIGHTNESS USING FUZZY LOGICPULP BRIGHTNESS USING FUZZY LOGIC Summary: Decision Support System (FuzzyFlou) Automatic Generation of Fuzzy Knowledge...

465

Compensatory Paracrine Mechanisms That Define The Urothelial Response to Injury in Partial Bladder Outlet Obstruction  

E-Print Network [OSTI]

3.19, MicroBrightField, Williston, Vermont). The application3.19, MicroBrightField, Williston, Vermont). The application

Lendvay,, Thomas S.

2008-01-01T23:59:59.000Z

466

Intrinsic and extrinsic mechanisms of corticospinal axon regeneration  

E-Print Network [OSTI]

MicroBrightField, Inc, Williston, VT). Random fields of viewMicroBrightField, Inc, Williston, VT) to estimate the total

Hollis, Edmund Roy

2008-01-01T23:59:59.000Z

467

Microglial and neuronal abnormalities in the autistic brain  

E-Print Network [OSTI]

MicroBrightField, Williston, VT). In the density assessment,MicroBrightField, Williston, VT), on a Nikon Eclipse 80i

Morgan, John T.

2009-01-01T23:59:59.000Z

468

Page not found | Department of Energy  

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

31 - 17340 of 26,764 results. 31 - 17340 of 26,764 results. Download Michael Liebreich (Energy All Stars Presentation) Michael Liebreich, CEO of Bloomberg New Energy Finance, delivered this presentation on the energy economy at the Energy All Stars event on January 19, 2013, at the US Department of Energy in... http://energy.gov/downloads/michael-liebreich-energy-all-stars-presentation Download Microsoft Word- PSRP Updates 6-25-10_v2 http://energy.gov/downloads/microsoft-word-psrp-updates-6-25-10v2-2 Download Microsoft Word- test http://energy.gov/downloads/microsoft-word-test Download Docket No. EERE-2008-BT-STD-0005. RIN 1904-AB57 This memorandum for the record provides a summary of a February 13, 2013 meeting with U.S. Department of Energy staff concerning DOE's proposed rulemaking regarding amended energy conservation...

469

Page not found | Department of Energy  

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

61 - 20570 of 31,917 results. 61 - 20570 of 31,917 results. Article The Story of a Cutting-Edge Solar Startup Alta Devices is rethinking how low cost, high performance solar cells are made. http://energy.gov/articles/story-cutting-edge-solar-startup Download Biological Weed Control at the Sherwood, Washington, Disposal Site Biological Weed Control at the Sherwood, Washington, Disposal Site http://energy.gov/lm/downloads/biological-weed-control-sherwood-washington-disposal-site Download Sue Tierney (Energy All Stars Presentation) Sue Tierney delivered this presentation" The Future of Energy: Toward the 21st Century Energy System We Need (With an Eye on the Rear View Mirror)" at the Energy All Stars event on January 19, 2013... http://energy.gov/downloads/sue-tierney-energy-all-stars-presentation

470

Page not found | Department of Energy  

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

91 - 28600 of 29,416 results. 91 - 28600 of 29,416 results. Download Demonstration of DeconGel (TM) at the Oak Ridge National Laboratory Building 2026 Cellular Bioengineering Inc. (CBI) has developed decontamination gels (DeconGel(tm) 1101, 1120 and 1121) that when dried allow efficient removal of contamination from surfaces in a peelable film that... http://energy.gov/em/downloads/demonstration-decongel-tm-oak-ridge-national-laboratory-building-2026 Download Sue Tierney (Energy All Stars Presentation) Sue Tierney delivered this presentation" The Future of Energy: Toward the 21st Century Energy System We Need (With an Eye on the Rear View Mirror)" at the Energy All Stars event on January 19, 2013... http://energy.gov/downloads/sue-tierney-energy-all-stars-presentation Download Enforcement Guidance Supplement 00-01: Enforcement Position

471

Page not found | Department of Energy  

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

61 - 14170 of 28,905 results. 61 - 14170 of 28,905 results. Download Spectrum Technology Workshop http://energy.gov/cio/downloads/spectrum-technology-workshop Download DOE Shipment Activities: What We Accomplished and a Look Forward Presented by Stephen O'Connor, Director of Office of Packaging and Transportation. http://energy.gov/em/downloads/doe-shipment-activities-what-we-accomplished-and-look-forward Download Sue Tierney (Energy All Stars Presentation) Sue Tierney delivered this presentation" The Future of Energy: Toward the 21st Century Energy System We Need (With an Eye on the Rear View Mirror)" at the Energy All Stars event on January 19, 2013... http://energy.gov/downloads/sue-tierney-energy-all-stars-presentation Download Response to several FOIA requests- Renewable Energy.

472

Page not found | Department of Energy  

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

61 - 11770 of 28,905 results. 61 - 11770 of 28,905 results. Download Michael Liebreich (Energy All Stars Presentation) Michael Liebreich, CEO of Bloomberg New Energy Finance, delivered this presentation on the energy economy at the Energy All Stars event on January 19, 2013, at the US Department of Energy in... http://energy.gov/downloads/michael-liebreich-energy-all-stars-presentation Download CX-000476: Categorical Exclusion Determination 331 Building Irrigation Upgrades, 300 Area CX(s) Applied: B2.5 Date: 09/23/2009 Location(s): Richland, Washington Office(s): Science, Pacific Northwest Site Office http://energy.gov/nepa/downloads/cx-000476-categorical-exclusion-determination Download Progress and Outlook on China Industrial Energy Conservation Progress and Outlook on China Industrial Energy Conservation

473

Page not found | Department of Energy  

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

71 - 26280 of 28,904 results. 71 - 26280 of 28,904 results. Article EM Waste Isolation Pilot Plant Team's Holiday Spirit Shines CARLSBAD, N.M. - Children in the Carlsbad area are warmer this holiday season thanks to the generosity of EM's Waste Isolation Pilot Plant (WIPP) team of employees. http://energy.gov/em/articles/em-waste-isolation-pilot-plant-team-s-holiday-spirit-shines Article Renewable Energy Resource Maps and Screening Tools Renewable energy resources are available across the United States but vary greatly depending on exact location and micro-climate. This page outlines renewable energy resource maps and screening tools to help Federal agencies assess the viability of on-site renewable energy projects. http://energy.gov/eere/femp/articles/renewable-energy-resource-maps-and-screening-tools

474

Page not found | Department of Energy  

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

81 - 16190 of 26,764 results. 81 - 16190 of 26,764 results. Article Shining Energy-saving LEDs on Utah Starry Nights Utah is known for its magnificent night skies, where stargazers can catch a glimpse of constellations or a rogue shooting star. Now some rural towns have found a way to create even better views-and conserve energy. http://energy.gov/articles/shining-energy-saving-leds-utah-starry-nights Article Residential Tax Credits Boost Maryland Geothermal Business Demand for residential geothermal systems grows as homeowners look for ways to cut expenses. http://energy.gov/articles/residential-tax-credits-boost-maryland-geothermal-business Article Help Wanted at Kansas Wind Blade Company Enertech, Inc., a small-scale wind manufacturer in Newton, Kansas, has added six new employees in the last eight months, boosting its workforce to

475

Page not found | Department of Energy  

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

11 - 25720 of 28,904 results. 11 - 25720 of 28,904 results. Article Weatherization and Energy Efficiency Success Stories Last Friday was National Weatherization Day, which brought attention to the cost-saving and environmental benefits of a number of energy efficiency methods. http://energy.gov/energysaver/articles/weatherization-and-energy-efficiency-success-stories Article Solar Decathlon: Rain and Shine Friday marked the end of the Solar Decathlon competition. Team Germany won (for the second time) in a very competitive field, in a ceremony marked by gray skies, cold temperatures and rain. http://energy.gov/energysaver/articles/solar-decathlon-rain-and-shine Article Solar Decathlon: How Do WE Do Efficiency? The weather is cooling off, the trees look gorgeous and (every other year)

476

Photovoltaic Cell Quantum Efficiency Basics | Department of Energy  

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

Cell Quantum Efficiency Basics Cell Quantum Efficiency Basics Photovoltaic Cell Quantum Efficiency Basics August 20, 2013 - 3:05pm Addthis Quantum efficiency (QE) is the ratio of the number of charge carriers collected by a photovoltaic (PV) cell to the number of photons-or packets of light-of a given energy shining on the solar cell. Quantum efficiency therefore relates to the response of a solar cell to the various wavelengths in the spectrum of light shining on the cell. The QE is given as a function of either wavelength or energy. If all the photons of a certain wavelength are absorbed and the resulting minority carriers (for example, electrons in a p-type material) are collected, then the QE at that particular wavelength has a value of one. The QE for photons with energy below the bandgap is zero.

477

Page not found | Department of Energy  

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

51 - 23560 of 28,560 results. 51 - 23560 of 28,560 results. Article Solar Decathlon: Rain and Shine Friday marked the end of the Solar Decathlon competition. Team Germany won (for the second time) in a very competitive field, in a ceremony marked by gray skies, cold temperatures and rain. http://energy.gov/energysaver/articles/solar-decathlon-rain-and-shine Article Solar Decathlon: How Do WE Do Efficiency? The weather is cooling off, the trees look gorgeous and (every other year) the National Mall turns into a beehive of activity when the Solar Decathlon comes to town. http://energy.gov/energysaver/articles/solar-decathlon-how-do-we-do-efficiency Article A Cure for the Summertime Blues? When you look at your utility bill, keep this in mind: about 43% of the money you spend goes for heating and cooling. And when the thermometer

478

Pion Production Cross-section Measurements in p+C Collisions at the CERN SPS for Understanding Extensive Air Showers  

E-Print Network [OSTI]

An important approach to studying high-energy cosmic rays is the investigation of the properties of extensive air showers; however, the lateral distribution of particles in simulations of such showers strongly depends on the applied model of low-energy hadronic interactions. It has been shown that many constraints to be applied to these models can be obtained by studying identified-particle spectra from accelerator collisions, in the energy range of the CERN Super Proton Synchrotron. Here we present measurements of the pion production cross-section obtained by the NA61/SHINE experiment at the SPS, in proton-carbon collisions at the beam energy of 31 GeV from the year 2007. Further analyses of identified-particle yields in SHINE, in particular with a pion beam, are in preparation.

Marek Szuba; for the NA61/SHINE Collaboration

2010-09-16T23:59:59.000Z

479

Operational air pollution prediction and doses calculation in case of nuclear emergency at Krko Nuclear Power Plant  

Science Journals Connector (OSTI)

The paper presents fully operational air pollution prediction and doses calculation system working in 2/24/7/365 mode for more than a decade in Krko Nuclear Power Plant (NPP). Krko NPP lies in complex terrain in Slovenia very close to Croatia border. A dedicated software is available for detailed estimation of possible radioactive emission (source term). This part of the procedure is used by trained NPP operators and then automatically coupled with dilution coefficients to obtain radionuclide air pollution concentrations. As radioactive material causes dose also with distant cloud shine not only by direct touch or inhalation, special procedure is implemented for dose estimation. We present in detail our algorithm for distant cloud shine estimation based on dilution coefficients calculation. The paper concludes by stressing the importance of correct air pollution prediction with best possible modelling techniques where achieving time and space accurate modelling is required for proper population protection.

Primož Mlakar; Marija Zlata Božnar; Borut Breznik

2014-01-01T23:59:59.000Z

480

Method of measuring a liquid pool volume  

DOE Patents [OSTI]

A method of measuring a molten metal liquid pool volume and in particular molten titanium liquid pools, including the steps of (a) generating an ultrasonic wave at the surface of the molten metal liquid pool, (b) shining a light on the surface of a molten metal liquid pool, (c) detecting a change in the frequency of light, (d) detecting an ultrasonic wave echo at the surface of the molten metal liquid pool, and (e) computing the volume of the molten metal liquid.

Garcia, Gabe V. (Las Cruces, NM); Carlson, Nancy M. (Idaho Falls, ID); Donaldson, Alan D. (Idaho Falls, ID)

1991-01-01T23:59:59.000Z

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


481

SUMMER 2009 Taking care  

E-Print Network [OSTI]

in Europe and other features. 37 38 11 #12;T H E U N I V E R S I T Y O F M E M P H I S2 S U M M E R 2 0 0 9 Lecture Hall are shining examples of how philanthropy can make a tremendous difference in our students' education. One of our most generous supporters is alumnus Frank Flautt Jr., who is the cover story

Dasgupta, Dipankar

482

Laser cooling of solids  

SciTech Connect (OSTI)

We present an overview of solid-state optical refrigeration also known as laser cooling in solids by fluorescence upconversion. The idea of cooling a solid-state optical material by simply shining a laser beam onto it may sound counter intuitive but is rapidly becoming a promising technology for future cryocooler. We chart the evolution of this science in rare-earth doped solids and semiconductors.

Epstein, Richard I [Los Alamos National Laboratory; Sheik-bahae, Mansoor [UNM

2008-01-01T23:59:59.000Z

483

Rosencrantz & Guildenstern Are Dead and Obscured by Language  

E-Print Network [OSTI]

changes around them without their knowledge or consent; and the events happening around them are not only beyond their control, but beyond even their understanding. The result is an acrobatic display of linguistic pyrotechnics as well as a provocative.... The moving lights will be used for specials and for gobo washes all over the stage. I found that doing my lighting storyboard by photographing the models with actual lights and gels shining on them greatly influenced my color choices. I knew which...

Banks, Elizabeth

2010-04-27T23:59:59.000Z

484

From dwarf spheroidals to cD galaxies: simulating the galaxy population in a CDM cosmology  

Science Journals Connector (OSTI)

......each output time, the post-processing pipeline produced a friends-of-friends (FOF...Reionization It is now well established that the global baryon-to-DM mass ratio is 15-20...major mergers, minor mergers and disc buckling. After a major merger, all stars from......

Qi Guo; Simon White; Michael Boylan-Kolchin; Gabriella De Lucia; Guinevere Kauffmann; Gerard Lemson; Cheng Li; Volker Springel; Simone Weinmann

2011-05-01T23:59:59.000Z

485

firstchoiceF O R I N F O R M A T I O N , E D U C A T I O N A N D E N T E R T A I N M E N T M A Y 2 0 13 National Memorial Day  

E-Print Network [OSTI]

) and Gary Sinise (CSI: New York) for a night of remembrance, featuring an all-star line-up performing: Cologne to Zell" 9:00pm This Old House "Cambridge Project" Part 4 of 15 9:30m Hometime "Creekside Home Into Deep Space: The Birth of the Alma Observatory Monday 6th 8:00pm Rick Steves' Europe "Burgundy: Profound

Meyers, Steven D.

486

The Final 40%: SunShot charges forward to tackle solar challenges!  

Broader source: Energy.gov [DOE]

At the peak of the SunShot Grand Challenge Summit, an all-star lineup of speakers kicked off the third day, jam-packed with discussions and idea-generating activities to help solve some of the toughest problems in solar energy.

487

Energy Transfer Dynamics and Dopant Luminescence in Mn-Doped CdS/ZnS Core/Shell Nanocrystals.  

E-Print Network [OSTI]

??Mn-doped II-VI semiconductor nanocrystals exhibit bright dopant photoluminescence that has potential usefulness for light emitting devices, temperature sensing, and biological imaging. The bright luminescence comes (more)

Chen, Hsiang-Yun

2012-01-01T23:59:59.000Z

488

From Francisco Garzon and John Symons (eds.) The Routledge Companion to the Philosophy of Psychology, London: Routledge, 2009: pp. 251-279.  

E-Print Network [OSTI]

is bright, or of a painting that depicts the sun's brightness.2 This illustrates the primary theoretical a theory of content ought to explain. For example, is it possible for me, you, a blind person, a robot

Ryder, Dan

489

Discrimination between cosmic ray and solar irradiance effects on clouds, and evidence for geophysical modulation of cloud thickness  

Science Journals Connector (OSTI)

...contributed to global cooling at solar minima (i.e. at CR maxima), would occur in parallel with solar brightness effects, causing the solar brightness effect to appear...condensation nuclei by ion-assisted aerosol formation and/or...

2008-01-01T23:59:59.000Z

490

Bow shocks formed by plasma collisions in laser irradiated semi-cylindrical cavities  

E-Print Network [OSTI]

the axis to form a dense bright plasma focus. Later in time a long lasting bow shock is observed to develop a location near the cavity axis, where it collides forming a bright high density plasma focus

Rocca, Jorge J.

491

NEW MEASURES OF WHITENESS THAT CORRELATE BETTER WITH PERCEIVED COLOR APPEARANCE  

E-Print Network [OSTI]

. These are compared with CIE, Hunter and Ganz whiteness formulas and TAPPI brightness, through perceptual evaluation with the observers' evaluations. TAPPI brightness also agreed well with the observers' assessments, but cannot

Fleming, Paul D. "Dan"

492

Added JWST Science Cases for the Timeframe 2012-2015 A SAR Study  

E-Print Network [OSTI]

role in their application. Observations of the brightness of type Ia supernovae provided the first empirical indication for dark energ

Sirianni, Marco

493

An Optically Stabilized Fast-Switching Light Emitting Diode as a Light Source for Functional  

E-Print Network [OSTI]

experimental setups. This paper presents a method to control the brightness of a high-power light emitting

Daniel A. Wagenaar

494

BACTERIAL MENINGITIS AND SWINE FLU THE DIFFERENCES BETWEEN THE SYMPTOMS  

E-Print Network [OSTI]

bright lights stiff neck cough sore throat body aches runny nose congestion fatigue If you think you have

Oxford, University of

495

E-Print Network 3.0 - advanced magnetic resonance Sample Search...  

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

(Namikawa, 1985; Gibbs, 1988) channels. These include studies... weak, synchrotron radiation brightness, together with resonant ... Source: Haskel, Daniel - Advanced Photon...

496

Impairments in experience-dependent cortical plasticity in aged animals  

E-Print Network [OSTI]

Neurolucida (MBF Bioscience, Williston, VT) and analyzedMicroBrightField Bioscience, Williston, VT). The area of the

Rickert, Jessica Louise

2009-01-01T23:59:59.000Z

497

Fallout: New H-Bomb Peril?  

Science Journals Connector (OSTI)

The bright flashes in the morning sky came from a "thermonuclear device," the A-bomb's big brother. ...

1955-02-28T23:59:59.000Z

498

The formation of molecular clouds  

Science Journals Connector (OSTI)

......as M83, which are bright in the non-thermal radio continuum, are also correspondingly...brightness in the arms of M51, where the non-thermal radio emission is also bright, and the...C. A. , Adams F. C., Cowley S., Sudan R. N., 1996, ApJ, 469, 719. Ostriker......

J.E. Pringle; Ronald J. Allen; S.H. Lubow

2001-10-21T23:59:59.000Z

499

EXPLORING MYTHS OF MEASURED AND PERCEIVED WHITENESS  

E-Print Network [OSTI]

and specification of color and optical properties of paper. CIE and TAPPI are the most commonly used color systems and brightness meters. CIE whiteness 4 and TAPPI brightness 5 are the most commonly used measurements in Europe. However, CIE whiteness, and TAPPI brightness are fundamentally different concepts and the use

Fleming, Paul D. "Dan"

500

NREL: Hydrogen and Fuel Cells Research - Photoelectrochemical Laboratory  

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

Photoelectrochemical Laboratory Photoelectrochemical Laboratory Photo of researcher examining a glass-enclosed photoelectrochemical cell producing hydrogen as a beam of light is shined on it. NREL researcher demonstrating direct production of hydrogen from light energy by a photoelectrochemical cell. Credit: Warren Gretz. NREL's Photoelectrochemical Laboratory enables NREL's pioneering work in photoelectrochemical hydrogen production from solar energy. Photoelectrochemical devices combine elements of solar cells and electrolyzers to produce hydrogen directly from sunlight in a single step. Efficient photoelectrochemical hydrogen production is a holy grail of renewable hydrogen production, and NREL researchers are at the forefront of this research effort. The primary focus is to identify and develop current photovoltaic