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1

CIP Degree Program USF Tampa USF Sarasota-  

E-Print Network (OSTI)

CIP Degree Program USF Tampa USF St Petersburg USF Sarasota- Manatee Lakeland (Teach-out) Comments, SARASOTA-MANATEE AND LAKELAND December 2013 #12;CIP Degree Program USF Tampa USF St Petersburg USF Sarasota.1801 Materials Science & Engineering MS #12;CIP Degree Program USF Tampa USF St Petersburg USF Sarasota- Manatee

Meyers, Steven D.

2

USF System USF USFSP USFSM Number: 0-611  

E-Print Network (OSTI)

is responsible for the costs associated with the alcohol and/or controlled substances testing and the USF system-designated to be a positive test and will result in termination. The USF system will make available to applicants and providePOLICY USF System USF USFSP USFSM Number: 0-611 Subject: Alcohol and Drug Testing Responsible

Meyers, Steven D.

3

USF System USF USFSP USFSM Number: 0-611  

E-Print Network (OSTI)

for the costs associated with the alcohol and/or controlled substances testing and the USF System-designated to be a positive test and will result in termination. The USF System will make available to applicants and providePOLICY USF System USF USFSP USFSM Number: 0-611 Subject: Alcohol and Drug Testing Date of Origin

Meyers, Steven D.

4

USF Graduate Catalog 20142015 607www.patel.usf.edu  

E-Print Network (OSTI)

MA New Concentration Sustainable Energy 3/3/14 Updated courses 5/19/14 #12;USF fosters sustainable urban communities and environments through collaborative research, education Energy (SUSE) Sustainable Tourism (SUT) Water (WTR) #12;USF Graduate Catalog 20142015

Meyers, Steven D.

5

USF System USF USFSP USFSM Number: 0-615  

E-Print Network (OSTI)

history background check through validated national database sources, and a check of the National SexPOLICY USF System USF USFSP USFSM Number: 0-615 Subject: Criminal History Background Checks Date environment, the USF System requires that a criminal history background check be conducted on prospective

Meyers, Steven D.

6

USF System USF USFSP USFSM Number: 0-027  

E-Print Network (OSTI)

Officers and Employees; Compliance and Disclosure Date of Origin: 4-3-14 Date Last Amended: Date Last for Public Officers and Employees (FCOE). This Policy provides guidance for USF System employees regarding or industry compliance standards or recommendations (examples: USF Health, USF Purchasing). Any

Meyers, Steven D.

7

USF System USF USFSP USFSM Number: 6-031  

E-Print Network (OSTI)

OF POLICY The USF System's Bloodborne Pathogens Exposure Control Plan (ECP) serves as the standard for all with the provisions of the ECP. The ECP is available for review in COMPASS, "USF System Exposure Control Plan: 01-08-13 Date Last Amended: Date Last Reviewed

Meyers, Steven D.

8

USF System USF USFSP USFSM Number: 6-018  

E-Print Network (OSTI)

or gas-powered carts and/or similar utility type vehicles (carts) on all non-public roads of allPOLICY USF System USF USFSP USFSM Number: 6-018 Subject: Cart/Utility Vehicle Operation Date-29-13 _____________________________________________________________________________________________ I. INTRODUCTION ( Purpose and Intent) This policy outlines requirements for the use of electric

Meyers, Steven D.

9

Drilling continues upward momentum  

SciTech Connect

This paper discusses how the drilling recovery that began during the second half of 1989 is continuing into 1990. On top of this, the Iraqi invasion of Kuwait has caused disarray in oil markets, driving up oil prices, and disrupting access to oil supplies. Potentially, this upheaval could lead to an upward spike in worldwide drilling activity.

Moritis, G.

1990-09-24T23:59:59.000Z

10

USFS-Climate Change Resource Center | Open Energy Information  

Open Energy Info (EERE)

USFS-Climate Change Resource Center Jump to: navigation, search Tool Summary LAUNCH TOOL Name: USFS-Climate Change Resource Center AgencyCompany Organization: United States...

11

USF Graduate Catalog 20142015 680http://health.usf.edu/nocms/nursing/  

E-Print Network (OSTI)

health care issues such as heart disease, Alzheimer's/dementia, and cancer. b. Through the CON RESTOREUSF Graduate Catalog 20142015 680http://health.usf.edu/nocms/nursing/ SECTION 20http://health.usf.edu/nocms/nursing/ Changes to Note The follow curricular changes for the College

Meyers, Steven D.

12

http://health.usf.edu/publichealth/ SECTION 21  

E-Print Network (OSTI)

Management Conc. 12/17/12 Revise GRE for concentrations: Health Care Organizations and Management 702 http://health.usf.edu/publichealth/ SECTION 21 CCOOLLLLEEGGEE OOFF PPUUBBLLIICC HHEEAALLTTHH #12;USF Tampa Graduate Catalog 20132014 Section 21 College of Public Health

Meyers, Steven D.

13

USF College of Marine Science Eminent Scholars Lecture Series  

E-Print Network (OSTI)

USF College of Marine Science Eminent Scholars Lecture Series Frontiers in Marine Science Thursday - April 5, 2012 Time Speaker Title 1:30 pm Dr. Josh Willis Jet Propulsion Laboratory California Institute, 727-553-1130, website: http://www.marine.usf.edu/seminars/esls #12;

Meyers, Steven D.

14

USFS Humboldt-Toiyabe National Forest | Open Energy Information  

Open Energy Info (EERE)

USFS Humboldt-Toiyabe National Forest USFS Humboldt-Toiyabe National Forest Jump to: navigation, search Name USFS Humboldt-Toiyabe National Forest Short Name Humbolt-Toiyabe NF Parent Organization United States Forest Service Address 1200 Franklin Way Place Sparks, NV Zip 89431 Phone number (775) 331-6444 Website http://www.fs.usda.gov/main/ht References Humboldt-Toiyabe NF Website[1] This article is a stub. You can help OpenEI by expanding it. USFS Toiyabe National Forest is an organization based in Sparks, Nevada, Sparks, Nevada. References ↑ "Humboldt-Toiyabe NF Website" Retrieved from "http://en.openei.org/w/index.php?title=USFS_Humboldt-Toiyabe_National_Forest&oldid=640692" Categories: Government Agencies Stubs What links here Related changes Special pages Printable version

15

Upward Showering Muons in Super?Kamiokande  

Science Journals Connector (OSTI)

A small subset of neutrino?induced upward going muons in the Super?Kamiokande detector consists of high energy muons that undergo radiative energy losses through bremsstrahlung e + e ? pair production and photo?nuclear interactions. The mean energy of the parent neutrinos of these showering upward muons is approximately 1 TeV allowing the selection of a high energy sample of neutrinos. We present physics(mainly oscillation analysis) as well as astrophysical results with the upward showering muon dataset using about 1680 days of Super?K?I data.

Shantanu Desai; Super?Kamiokande Collaboration

2006-01-01T23:59:59.000Z

16

USFS Electric Transmission Line Easement Form FS-2700-31 | Open...  

Open Energy Info (EERE)

USFS Electric Transmission Line Easement Form FS-2700-31 Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: USFS Electric Transmission...

17

USF Physical Plant Recycling Program Updated November 2013  

E-Print Network (OSTI)

USF Physical Plant Recycling Program Updated November 2013 #12;Beginnings � Program initiated � Continuously expanding recycling efforts #12;Paper Recycling � Currently recycling mixed paper Office paper, newspaper, magazines, cardboard, paperbacks � PPD has distributed about 2,400 office-size recycling

Meyers, Steven D.

18

The College of Nursing will be conducting live, informational webinars regarding the V-CARE program. Webinars will be conducted by a USF pre-Nursing Advisor and a USF Nursing Advisor and include information  

E-Print Network (OSTI)

. Webinars will be conducted by a USF pre-Nursing Advisor and a USF Nursing Advisor and include information-CARE Admission and pre-Nursing advisor by calling 813-974-3819, emailing KirstenManzi@health.usf.edu, or making

Meyers, Steven D.

19

ORNL technology transfer continues strong upward trend | ornl...  

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

Ron Walli Communications 865.576.0226 ORNL technology transfer continues strong upward trend Mike Paulus, director of Technology Transfer, says initiatives like SPARK have been...

20

GRR/Section 4-FD-c - Exploration Application Process USFS | Open Energy  

Open Energy Info (EERE)

4-FD-c - Exploration Application Process USFS 4-FD-c - Exploration Application Process USFS < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 4-FD-c - Exploration Application Process USFS 04FDCExplorationApplicationProcessUSFS (3).pdf Click to View Fullscreen Contact Agencies United States Forest Service Bureau of Land Management Regulations & Policies Memorandum of Understanding between DOI and DOA 43 CFR 3200, Subpart 3252 - Conducting Exploration Operations 43 CFR 3250.10(b)(4) Triggers None specified Click "Edit With Form" above to add content 04FDCExplorationApplicationProcessUSFS (3).pdf Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range. Error creating thumbnail: Page number not in range.

Note: This page contains sample records for the topic "usf upward bound" 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

$B_s \\to ?^+ ?^-$ and the upward-going muon flux from the WIMP annihilation in the sun or the earth  

E-Print Network (OSTI)

We consider the upward-going muon flux due to the WIMP annihilations in the cores of the sun and the earth, including the upper bound on the branching ratio for $B_s \\to \\mu^+ \\mu^-$ decay. We find that the constraint from $B_s \\to \\mu^+ \\mu^-$ is very strong in most parameter space, and exclude the supergravity parameter space regions where the expected upward-going muon fluxes are within the expected reach of AMANDA II.

Seungwon Baek; Yeong Gyun Kim; P. Ko

2005-06-13T23:59:59.000Z

22

The Effect of Vertical Upward Flow on Thermal Plumes  

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

The Effect of Vertical Upward Flow on Thermal Plumes The Effect of Vertical Upward Flow on Thermal Plumes Speaker(s): Pierre S. Farrugia Date: November 18, 2010 - 12:05pm Location: 90-3122 Seminar Host/Point of Contact: David Lorenzetti Thermal plumes have been widely investigated in a variety of scenarios, including natural convection and stratified environments. The resulting theory may be used to predict ventilation flow rates in, for example, natural and displacement ventilation, and under-floor air distribution (UFAD) systems. However, there has been little effort in investigating how uniform upward flows affect the plume velocity, rate of growth, and thermal profile. Such situations can arise if, for example, the diffusers of a UFAD system are evenly distributed. In order to study such situations, analytical expressions for the velocity and temperature profiles of a plume

23

A unified model for slug flow in upward inclined pipes  

SciTech Connect

The effect of pipe inclination on upward two-phase slug flow characteristics has been studied both experimentally and theoretically. Experimental data were acquired for the entire range of inclination angles, from horizontal to vertical. New correlations were developed for slug length and liquid holdup in the slug body as a function of inclination angle. A unified model has been developed for the prediction of slug flow behavior in upward inclined pipes. Reasonable agreement is observed between the pressure drop predicted by the model and the experimental data.

Felizola, H.; Shoham, O. [Univ. of Tulsa, OK (United States). Petroleum Engineering Dept.

1995-03-01T23:59:59.000Z

24

USF Graduate Catalog 20142015 Section 2 About USF Founded in 1956, the University of South Florida was the first independent state university conceived, planned and  

E-Print Network (OSTI)

, promote civic culture and the arts, and design and build sustainable communities through the generation accredited by the Commission on Colleges of the Southern Association of Colleges and Schools is home to USF Health, including the Colleges of Medicine, Nursing, Public Health and Pharmacy

Meyers, Steven D.

25

Activation of 200 MW refusegenerated CHP upward regulation effect (Smart  

Open Energy Info (EERE)

Activation of 200 MW refusegenerated CHP upward regulation effect Activation of 200 MW refusegenerated CHP upward regulation effect Country Denmark Headquarters Location Sønderborg, Denmark Coordinates 54.913811°, 9.792178° 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":54.913811,"lon":9.792178,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

26

GRR/Section 9-FD-a - BLM and USFS NEPA Process | Open Energy Information  

Open Energy Info (EERE)

GRR/Section 9-FD-a - BLM and USFS NEPA Process GRR/Section 9-FD-a - BLM and USFS NEPA Process < GRR Jump to: navigation, search GRR-logo.png GEOTHERMAL REGULATORY ROADMAP Roadmap Home Roadmap Help List of Sections Section 9-FD-a - BLM and USFS NEPA Process 09-FD-a - NEPAProcess.pdf Click to View Fullscreen Contact Agencies Council on Environmental Quality Environmental Protection Agency US Army Corps of Engineers Regulations & Policies National Environmental Policy Act CEQ Regulations for implementing NEPA NEPA Policy (integration with other planning procedures): 40 CFR 1500.2(c) NEPA Time Limits: 40 CFR 1501.8 Interdisciplinary Preparation of an EIS: 40 CFR 1502.6 Elimination of Duplication with State and Local Procedures 40 CFR 1506.2 Categorical Exclusion: 40 CFR 1508.4 Finding of no Significant Impact (FONSI): 40 CFR 1508.13

27

Upward Shift of the Atmospheric General Circulation under Global Warming: Theory and Simulations  

E-Print Network (OSTI)

, including upward shifts in the ver- tical velocities and distributions of cloud water and ice as the seaUpward Shift of the Atmospheric General Circulation under Global Warming: Theory and Simulations circulation of the atmosphere shift upward in response to warming in simu- lations of climate change with both

O'Gorman, Paul

28

Activation of 200 MW refusegenerated CHP upward regulation effect (Smart  

Open Energy Info (EERE)

effect (Smart effect (Smart Grid Project) (Thisted, Denmark) Jump to: navigation, search Project Name Activation of 200 MW refusegenerated CHP upward regulation effect Country Denmark Headquarters Location Thisted, Denmark Coordinates 56.959167°, 8.703492° 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":56.959167,"lon":8.703492,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

29

File:04FDCExplorationApplicationProcessUSFS (3).pdf | Open Energy  

Open Energy Info (EERE)

FDCExplorationApplicationProcessUSFS (3).pdf FDCExplorationApplicationProcessUSFS (3).pdf Jump to: navigation, search File File history File usage Metadata File:04FDCExplorationApplicationProcessUSFS (3).pdf Size of this preview: 463 × 599 pixels. Other resolution: 464 × 600 pixels. Full resolution ‎(1,275 × 1,650 pixels, file size: 37 KB, MIME type: application/pdf) File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 13:46, 2 August 2013 Thumbnail for version as of 13:46, 2 August 2013 1,275 × 1,650 (37 KB) Apalazzo (Talk | contribs) 13:43, 2 August 2013 Thumbnail for version as of 13:43, 2 August 2013 1,275 × 1,650 (37 KB) Apalazzo (Talk | contribs) 10:58, 14 November 2012 Thumbnail for version as of 10:58, 14 November 2012 1,275 × 1,650 (79 KB) Dklein2012 (Talk | contribs)

30

Upward-facing Lithium Flash Evaporator for NSTX-U  

SciTech Connect

NSTX plasma performance has been significantly enhanced by lithium conditioning [1]. To date, the lower divertor and passive plates have been conditioned by downward facing lithium evaporators (LITER) as appropriate for lower null plasmas. The higher power operation expected from NSTX-U requires double null plasma operation in order to distribute the heat flux between the upper and lower divertors making it desirable to coat the upper divertor region with Li as well. An upward aiming LITER (U-LITER) is presently under development and will be inserted into NSTX-U using a horizontal probe drive located in a 6" upper midplane port. In the retracted position the evaporator will be loaded with up to 300 mg of Li granules utilizing one of the calibrated NSTX Li powder droppers[2]. The evaporator will then be inserted into the vessel in a location within the shadow of the RF limiters and will remain in the vessel during the discharge. About 10 seconds before a discharge, it will be rapidly heated and the lithium completely evaporated onto the upper divertor, thus avoiding the complication of a shutter that prevents evaporation during the shot when the diagnostic shutters are open. The minimal time interval between the evaporation and the start of the discharge will avoid the passivation of the lithium by residual gases and enable the study of the conditioning effects of un-passivated Li surfaces [3]. Two methods are being investigated to accomplish the rapid (few second) heating of the lithium. A resistive method relies on passing a large current through a Li filled crucible. A second method requires using a 3 kW e-beam gun to heat the Li. In this paper the evaporator systems will be described and the pros and cons of each heating method will be discussed.

Roquemore, A. L.

2013-07-09T23:59:59.000Z

31

Parallel electric fields in the upward current region of the aurora: Indirect and direct observations  

E-Print Network (OSTI)

Parallel electric fields in the upward current region of the aurora: Indirect and direct In this article we present electric field, magnetic field, and charged particle observations from the upward current region of the aurora focusing on the structure of electric fields at the boundary between

California at Berkeley, University of

32

Upward Shift of the Atmospheric General Circulation under Global Warming: Theory and Simulations  

E-Print Network (OSTI)

Many features of the general circulation of the atmosphere shift upward in response to warming in simulations of climate change with both general circulation models (GCMs) and cloud-system-resolving models. The importance ...

Singh, Martin Simran

33

QUIZ 2 A ball with mass 2 kg is thrown upward with initial velocity ...  

E-Print Network (OSTI)

A ball with mass 2 kg is thrown upward with initial velocity 100 m/s from the ground. Assume the air resistance is 0.2|v|. For simplicity, just assume that g = 10.

2014-09-24T23:59:59.000Z

34

Upward Gas-Liquid Flow in Concentric and Eccentric Annular Spaces  

E-Print Network (OSTI)

UPWARD GAS-LIQUID FLOW IN CONCENTRIC AND ECCENTRIC ANNULAR SPACES A Thesis by PEDRO CAVALCANTI DE SOUSA Submitted to the Office of Graduate and Professional Studies of Texas A&M University in partial fulfillment... Copyright 2013 Pedro Cavalcanti de Sousa ii ABSTRACT A limited amount of work exists on upward gas-liquid flow in annular spaces. This is a common scenario in drilling operations, especially in underbalanced drilling, and in high-production wells...

Cavalcanti de Sousa, Pedro

2013-12-09T23:59:59.000Z

35

USF College of Pharmacy Technical Standards All candidates must meet the health and technical standards requisite for  

E-Print Network (OSTI)

and written form with all members of a health care team. #12;3. Motor Coordination and Function. CandidatesUSF College of Pharmacy Technical Standards All candidates must meet the health and technical-centered, pharmaceutical care to patients. A candidate for the PharmD degree must have aptitude, abilities, and skills

Meyers, Steven D.

36

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

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

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

37

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

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

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

38

Parallel electric fields in the upward current region of the aurora: Numerical solutions  

E-Print Network (OSTI)

Parallel electric fields in the upward current region of the aurora: Numerical solutions R. E Direct observations of the parallel electric field by the Fast Auroral Snapshot satellite and the Polar of the properties of the observed electric fields, electron distributions, and ion distributions. The solutions

California at Berkeley, University of

39

Sources of biogenic methane to form marine gas hydrates: In situ production or upward migration?  

SciTech Connect

Potential sources of biogenic methane in the Carolina Continental Rise -- Blake Ridge sediments have been examined. Two models were used to estimate the potential for biogenic methane production: (1) construction of sedimentary organic carbon budgets, and (2) depth extrapolation of modern microbial production rates. While closed-system estimates predict some gas hydrate formation, it is unlikely that >3% of the sediment volume could be filled by hydrate from methane produced in situ. Formation of greater amounts requires migration of methane from the underlying continental rise sediment prism. Methane may be recycled from below the base of the gas hydrate stability zone by gas hydrate decomposition, upward migration of the methane gas, and recrystallization of gas hydrate within the overlying stability zone. Methane bubbles may also form in the sediment column below the depth of gas hydrate stability because the methane saturation concentration of the pore fluids decreases with increasing depth. Upward migration of methane bubbles from these deeper sediments can add methane to the hydrate stability zone. From these models it appears that recycling and upward migration of methane is essential in forming significant gas hydrate concentrations. In addition, the depth distribution profiles of methane hydrate will differ if the majority of the methane has migrated upward rather than having been produced in situ.

Paull, C.K.; Ussler, W. III; Borowski, W.S.

1993-09-01T23:59:59.000Z

40

UPWARD MOVEMENT OF PLUTONIUM TO SURFACE SEDIMENTS DURING AN 11-YEAR FIELD STUDY  

SciTech Connect

An 11-y lysimeter study was established to monitor the movement of Pu through vadose zone sediments. Sediment Pu concentrations as a function of depth indicated that some Pu moved upward from the buried source material. Subsequent numerical modeling suggested that the upward movement was largely the result of invading grasses taking up the Pu and translocating it upward. The objective of this study was to determine if the Pu of surface sediments originated from atmosphere fallout or from the buried lysimeter source material (weapons-grade Pu), providing additional evidence that plants were involved in the upward migration of Pu. The {sup 240}Pu/{sup 239}Pu and {sup 242}Pu/{sup 239}Pu atomic fraction ratios of the lysimeter surface sediments, as determined by Thermal Ionization Mass Spectroscopy (TIMS), were 0.063 and 0.00045, respectively; consistent with the signatures of the weapons-grade Pu. Our numerical simulations indicate that because plants create a large water flux, small concentrations over multiple years may result in a measurable accumulation of Pu on the ground surface. These results may have implications on the conceptual model for calculating risk associated with long-term stewardship and monitored natural attenuation management of Pu contaminated subsurface and surface sediments.

Kaplan, D.; Beals, D.; Cadieux, J.; Halverson, J.

2010-01-25T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

Physical mechanism and numerical simulation of the inception of the lightning upward leader  

SciTech Connect

The upward leader is a key physical process of the leader progression model of lightning shielding. The inception mechanism and criterion of the upward leader need further understanding and clarification. Based on leader discharge theory, this paper proposes the critical electric field intensity of the stable upward leader (CEFISUL) and characterizes it by the valve electric field intensity on the conductor surface, E{sub L}, which is the basis of a new inception criterion for the upward leader. Through numerical simulation under various physical conditions, we verified that E{sub L} is mainly related to the conductor radius, and data fitting yields the mathematical expression of E{sub L}. We further establish a computational model for lightning shielding performance of the transmission lines based on the proposed CEFISUL criterion, which reproduces the shielding failure rate of typical UHV transmission lines. The model-based calculation results agree well with the statistical data from on-site operations, which show the effectiveness and validity of the CEFISUL criterion.

Li Qingmin [Beijing Key Lab of High Voltage and EMC, School of Electric and Electronic Engineering, North China Electric Power University, Beijing 102206 (China) and State Key Lab of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206 (China); Lu Xinchang; Shi Wei; Zhang Li; Zou Liang; Lou Jie [Shandong Provincial Key Lab of UHV Technology and Gas Discharge, School of Electrical Engineering, Shandong University, Jinan 250061 (China)

2012-12-15T23:59:59.000Z

42

Intensity of Upward Muon Flux Due to Cosmic-Ray Neutrinos Produced in the Atmosphere  

DOE R&D Accomplishments (OSTI)

Calculations were performed to determine the upward going muon flux leaving the earth's surface after production by cosmic-ray neutrinos in the crust. Only neutrinos produced in the earth's atmosphere are considered. Rates of the order of one per 100 sq m/day might be expected if an intermediate boson exists and has a mass less than 2 Bev. (auth)

Lee, T. D.; Robinson, H.; Schwartz, M.; Cool, R.

1963-06-00T23:59:59.000Z

43

High gradient magnetic beneficiation of dry pulverized coal via upwardly directed recirculating fluidization  

DOE Patents (OSTI)

This invention relates to an improved device and method for the high gradient magnetic beneficiation of dry pulverized coal, for the purpose of removing sulfur and ash from the coal whereby the product is a dry environmentally acceptable, low-sulfur fuel. The process involves upwardly directed recirculating air fluidization of selectively sized powdered coal in a separator having sections of increasing diameters in the direction of air flow, with magnetic field and flow rates chosen for optimum separations depending upon particulate size.

Eissenberg, David M. (Oak Ridge, TN); Liu, Yin-An (Opelika, AL)

1980-01-01T23:59:59.000Z

44

Pacific Northwest Region MAPS dataset retrospective analysis Project Title: USFS Region Six MAPS Dataset Re-analysis for the Development of Management  

E-Print Network (OSTI)

Pacific Northwest Region MAPS dataset ­ retrospective analysis Project Title: USFS Region Six MAPS Dataset Re-analysis for the Development of Management and Climate Change Support Tools for Landbird) demographic dataset may reveal how predicted patterns of climate-related forest fragmentation, pest outbreak

DeSante, David F.

45

Interaction of HIF and USF Signaling Pathways in Human Genes Flanked by Hypoxia-Response Elements and E-box Palindromes  

Science Journals Connector (OSTI)

...anti-ATF-1 antibody (25C10G, sc-270) and rabbit polyclonal anti-USF1 (C-20, sc-229) were purchased...Genome Bioinformatics Website (Version hg19, GRCh37...April 09, 2010). The search for motifs, implemented...Chang GW, Clifford SC, et alHypoxia inducible...

Junmin Hu; Daniel P. Stiehl; Claudia Setzer; Daniela Wichmann; Dheeraj A. Shinde; Hubert Rehrauer; Pavel Hradecky; Max Gassmann; and Thomas A. Gorr

2011-11-01T23:59:59.000Z

46

Similarity solutions and applications to turbulent upward flame spread on noncharring materials  

SciTech Connect

The primary achievement in this work has been the discovery that turbulent upward flame spread on noncharring materials (for pyrolysis lengths less than 1.8m) can be directly predicted by using measurable flammability parameters. These parameters are: a characteristic length scale which is proportional to a turbulent combustion and mixing related length scale parameter ({dot q}{double_prime}{sub net}({Delta}H{sub c}/{Delta}H{sub v})){sup 2}, a pyrolysis or ignition time {tau}{sub p}, and a parameter which determines the transient pyrolysis history of a non-charring material: {lambda} = L/c{Delta}T{sub p} = ratio of the latent heat to the sensible heat of the pyrolysis temperature of the material. In the length scale parameter, {dot q}{double_prime}{sub net} is the total net heat flux from the flames to the wall (i.e., total heat flux minus reradiation losses), {Delta}H{sub c} is the heat of combustion and {Delta}H{sub v} is an effective heat of gasification for the material. The pyrolysis or ignition time depends (for thermally thick conditions) on the material thermal inertia, the pyrolysis temperature, and the total heat flux from the flames to the wall, {dot q}{double_prime}{sub fw}. The present discovery was made possible by using both a numerical simulation, developed earlier, and exact similarity solutions, which are developed in this work. The predictions of the analysis have been validated by comparison with upward flame spread experiments on PMMA.

Delichatsios, M.A.; Delichatsios, M.; Chen, Y. [Factory Mutual Research Corporation, Norwood, MA (United States)] [Factory Mutual Research Corporation, Norwood, MA (United States); Hasemi, Y. [Ministry of Construction, Tsukuba (Japan). Building Research Inst.] [Ministry of Construction, Tsukuba (Japan). Building Research Inst.

1995-08-01T23:59:59.000Z

47

Ultra High Energy Cosmic Rays, Z-Shower and Neutrino Astronomy by Horizontal-Upward Tau Air-Showers  

E-Print Network (OSTI)

Ultra High Cosmic Rays (UHECR) Astronomy may be correlated to a primary parental Neutrino Astronomy: indeed any far BL Lac Jet or GRB, sources of UHECR, located at cosmic edges, may send its signal, overcoming the severe GZK cut-off, by help of UHE ZeV energetic neutrino primary. These UHE neutrino scattering on relic light ones (spread on wide Hot Local Groups Halos) maybe fine-tuned : E_(nu) =(M_Z)^2/m_(nu) = 4 10^(22) eV *((0.1eV)/m_(nu)), to combine at once the observed light neutrino masses and the UHECR spectra, leading to a relativistic Z-Shower in Hot Dark Halos (e few tens Mpc wide) whose final nuclear component traces the UHECR event on Earth. Therefore UHECR (with no longer volme GZK constrains) may point to far BL Lac sources. This Z-Burst (Z-Shower) model calls for large neutrino fluxes. Even if Nature do not follow the present Z-model, UHECR while being cut-off by Big Bang Radiation, must produce a minimal UHE neutrino flux, the GZK neutrino secondaries. For both reasons such UHE Neutrino Astronomy must be tested on Earth. Lowest High Energy Astronomy is searched by AMANDA, ANTARES underground deterctors by muons tracks. We suggest a complementary higher energy Neutrino Tau Astronomy inducing Horizontal and Upward Tau AirShowers. Possible early evidence of such a New Neutrino UPTAUs (Upward Tau Showers at PeVs energies) Astronomy may be in BATSE records of Upward Terrestrial Gamma Flashes. Future signals must be found in detectors as EUSO, seeking Upward-Horizontal events: indeed even minimal, guaranteed, GZK neutrino fluxes may be better observed if EUSO threshold reaches 10^(19) eV by enlarging its telescope size.

D. Fargion

2003-06-24T23:59:59.000Z

48

Earth's extensive entropy bound  

E-Print Network (OSTI)

The possibility of planetary mass black hole production by crossing entropy limits is addressed. Such a possibility is given by pointing out that two geophysical quantities have comparable values: first, Earth's total negative entropy flux integrated over geological time and, second, its extensive entropy bound, which follows as a tighter bound to the Bekenstein limit when entropy is an extensive function. The similarity between both numbers suggests that the formation of black holes from planets may be possible through a strong fluctuation toward thermodynamic equilibrium which results in gravothermal instability and final collapse. Briefly discussed are implications for the astronomical observation of low mass black holes and for Fermi's paradox.

A. M. Lisewski

2012-12-20T23:59:59.000Z

49

USF System USF USFSP USFSM Number: USF4.0101  

E-Print Network (OSTI)

indicating the student's relationship to the deceased. (Obituaries, birth and death certificates, etc.) 3

Meyers, Steven D.

50

USF System USF USFSP USFSM Number: USF4.0102  

E-Print Network (OSTI)

Student Green Energy 1.00 1.00 0 Block Fee per Term Activity and Service 7.00 0 0 Athletic 10.00 5.00 5.00 Marshall Center Use 88.00 Student Green Energy 32.00 (2) Each student enrolled in the same undergraduate Programmatic Business, Engineering Nursing Nursing- CRNA In- State Out-of- State In-State Out-of- State In

Meyers, Steven D.

51

USF System USF USFSP USFSM Number: USF6.028  

E-Print Network (OSTI)

includes providing purchasing, contracting and budgetary review processes for Student Government of budgeted/allocated A&S funds must be in accordance with Section 1009.24 Florida Statutes. All SGA purchases to assure compliance. (f) The President's designee requires that SGA officers and appropriate University

Meyers, Steven D.

52

BOUNDING PROJECTIVE DIMENSION  

E-Print Network (OSTI)

The use of algorithms in algebra as well as the study of their complexity was initiated before the advent of modern computers. Hermann [25] studied the ideal membership problem, i.e determining whether a given polynomial is in a fixed homogeneous ideal, and found a doubly exponential bound on its computational

Jason Mccullough; Alexandra Seceleanu

53

ResourceBounded Information  

E-Print Network (OSTI)

Query Input l Word processing package for aMac. l $200 price limit. l Search process should take 10 min Features l Active search and discovery. l Resource Bounded Reasoning. l Goal­driven and) C (75% 6) (25% 4) enables Subtask Relation Enables NLE Q = Quality D = Duration C = Cost Task

Raja, Anita

54

Neutrino Induced Upward Going Muons from a Gamma Ray Burst in a Neutrino Telescope of Km^2 Area  

E-Print Network (OSTI)

The number of neutrino induced upward going muons from a single Gamma Ray Burst (GRB) expected to be detected by the proposed kilometer scale IceCube detector at the South Pole location has been calculated. The effects of the Lorentz factor, total energy of the GRB emitted in neutrinos and its distance from the observer (red shift) on the number of neutrino events from the GRB have been examined. The present investigation reveals that there is possibility of exploring the early Universe with the proposed kilometer scale IceCube neutrino telescope.

Nayantara Gupta

2002-01-30T23:59:59.000Z

55

An Experimental Study of Upward and Downward Flow of Supercritical Carbon Dioxide in a Straight Pipe Heat Exchanger with Constant Wall Heat Flux  

E-Print Network (OSTI)

An experimental analysis was conducted on a single circular tube heat exchanger using supercritical carbon dioxide as the working fluid. The heat exchanger was operated in two different orientations: vertically upward and downward. The experimental...

Umrigar, Eric Dara

2014-05-01T23:59:59.000Z

56

Bound States in Graphene  

E-Print Network (OSTI)

We present a quantum analysis of the massless excitations in graphene with a charge impurity. When the effective charge exceeds a certain critical value, the spectrum is quantized and is unbounded from below. The corresponding eigenstates are square-integrable at infinity and have a rapidly oscillatory behaviour in the short distance, which can be interpreted as a fall to the centre. Using a cutoff regularization, we show that the effective Coulomb interaction strength is driven to its critical value under the renormalization group flow. In the subcritical region, we find bound states with imaginary values of the energy for certain range of the system parameters. The physical significance of these bound states with imaginary eigenvalues is discussed.

Kumar S. Gupta; Siddhartha Sen

2008-05-22T23:59:59.000Z

57

Model of bubble velocity vector measurement in upward and downward bubbly two-phase flows using a four-sensor optical probe  

Science Journals Connector (OSTI)

Abstract The knowledge of bubble behaviors is of considerable significance for a proper understanding and modeling of two-phase flows. To obtain the information on the bubble motion, a novel model was developed, by which the bubble velocity vector can be directly calculated from six time intervals measured with a four-sensor probe. The measurements of local bubble velocity vector and void fraction were performed in both upward and downward bubbly flows by using a four-sensor optical probe. The area-averaged void fraction and bubble velocity obtained from the probe agree well with those measured by other cross-calibration methods, and the measurement errors are within 15% under various flow conditions. Experimental results of the bubble velocity vector reveal that the bubble lateral migration may be suppressed in upward flows, but be strengthened in downward flows as the liquid flow rate increases. Also, with an increase in gas flow rate, the bubble velocity distribution varies into the powerlaw profile in upward flows, but into an off-center peak profile in downward flows. In addition, the void fraction shows a core peak distribution at low void fraction for downward flows, but a wall peak distribution for upward flows. However, when the void fraction is relatively high, it displays an off-center peak distribution for downward flows but a core peak distribution for upward flows.

Daogui Tian; Changqi Yan; Licheng Sun

2015-01-01T23:59:59.000Z

58

Lower bounds on mutual information  

Science Journals Connector (OSTI)

We correct claims about lower bounds on mutual information (MI) between real-valued random variables made by Kraskov et al., Phys. Rev. E 69, 066138 (2004). We show that non-trivial lower bounds on MI in terms of linear correlations depend on the marginal (single variable) distributions. This is so in spite of the invariance of MI under reparametrizations, because linear correlations are not invariant under them. The simplest bounds are obtained for Gaussians, but the most interesting ones for practical purposes are obtained for uniform marginal distributions. The latter can be enforced in general by using the ranks of the individual variables instead of their actual values, in which case one obtains bounds on MI in terms of Spearman correlation coefficients. We show with gene expression data that these bounds are in general nontrivial, and the degree of their (non)saturation yields valuable insight.

David V. Foster and Peter Grassberger

2011-01-20T23:59:59.000Z

59

Experimental investigation on heat transfer and frictional characteristics of vertical upward rifled tube in supercritical CFB boiler  

Science Journals Connector (OSTI)

Water wall design is a key issue for supercritical Circulating Fluidized Bed (CFB) boiler. On account of the good heat transfer performance, rifled tube is applied in the water wall design of a 600MW supercritical CFB boiler in China. In order to investigate the heat transfer and frictional characteristics of the rifled tube with vertical upward flow, an in-depth experiment was conducted in the range of pressure from 12 to 30MPa, mass flux from 230 to 1200kg/(m2s), and inner wall heat flux from 130 to 720kW/m2. The wall temperature distribution and pressure drop in the rifled tube were obtained in the experiment. The normal, enhanced and deteriorated heat transfer characteristics were also captured. In this paper, the effects of pressure, inner wall heat flux and mass flux on heat transfer characteristics are analyzed, the heat transfer mechanism and the frictional resistance performance are discussed, and the corresponding empirical correlations are presented. The experimental results show that the rifled tube can effectively prevent the occurrence of Departure from Nucleate Boiling (DNB) and keep the tube wall temperature in a permissible range under the operating condition of supercritical CFB boiler.

Dong Yang; Jie Pan; Chenn Q. Zhou; Xiaojing Zhu; Qincheng Bi; Tingkuan Chen

2011-01-01T23:59:59.000Z

60

Viscosity Bound and Causality Violation  

Science Journals Connector (OSTI)

In recent work we showed that, for a class of conformal field theories (CFT) with Gauss-Bonnet gravity dual, the shear viscosity to entropy density ratio, ?/s, could violate the conjectured Kovtun-Starinets-Son viscosity bound, ?/s?1/4?. In this Letter we argue, in the context of the same model, that tuning ?/s below (16/25)(1/4?) induces microcausality violation in the CFT, rendering the theory inconsistent. This is a concrete example in which inconsistency of a theory and a lower bound on viscosity are correlated, supporting the idea of a possible universal lower bound on ?/s for all consistent theories.

Mauro Brigante; Hong Liu; Robert C. Myers; Stephen Shenker; Sho Yaida

2008-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

Tensor rank : some lower and upper bounds  

E-Print Network (OSTI)

The results of Strassen [25] and Raz [19] show that good enough tensor rank lower bounds have implications for algebraic circuit/formula lower bounds. We explore tensor rank lower and upper bounds, focusing on explicit ...

Forbes, Michael Andrew

2011-01-01T23:59:59.000Z

62

Methods and apparatus to produce stick-slip motion of logging tool attached to a wireline drawn upward by a continuously rotating wireline drum  

DOE Patents (OSTI)

Methods and apparatus are described to produce stick-slip motion of a logging tool within a cased well attached to a wireline that is drawn upward by a continuously rotating wireline drum. The stick-slip motion results in the periodic upward movement of the tool in the cased well described in terms of a dwell time during which time the tool is stationary, the move time during which time the tool moves, and the stroke that is upward distance that the tool translates during the "slip" portion of the stick-slip motion. This method of measurement is used to log the well at different vertical positions of the tool. Therefore, any typical "station-to-station logging tool" may be modified to be a "continuous logging tool", where "continuous" means that the wireline drum continually rotates while the tool undergoes stick-slip motion downhole and measurements are performed during the dwell times when the tool is momentarily stationary. The stick-slip methods of operation and the related apparatus are particularly described in terms of making measurements of formation resistivity from within a cased well during the dwell times when the tool is momentarily stationary during the periodic stick-slip motion of the logging tool.

Vail, III, William Banning (Bothell, WA); Momii, Steven Thomas (Seattle, WA)

1998-01-01T23:59:59.000Z

63

Methods and apparatus to produce stick-slip motion of logging tool attached to a wireline drawn upward by a continuously rotating wireline drum  

DOE Patents (OSTI)

Methods and apparatus are described to produce stick-slip motion of a logging tool within a cased well attached to a wireline that is drawn upward by a continuously rotating wireline drum. The stick-slip motion results in the periodic upward movement of the tool in the cased well described in terms of a dwell time during which time the tool is stationary, the move time during which time the tool moves, and the stroke that is upward distance that the tool translates during the ``slip`` portion of the stick-slip motion. This method of measurement is used to log the well at different vertical positions of the tool. Therefore, any typical ``station-to-station logging tool`` may be modified to be a ``continuous logging tool,`` where ``continuous`` means that the wireline drum continually rotates while the tool undergoes stick-slip motion downhole and measurements are performed during the dwell times when the tool is momentarily stationary. The stick-slip methods of operation and the related apparatus are particularly described in terms of making measurements of formation resistivity from within a cased well during the dwell times when the tool is momentarily stationary during the periodic stick-slip motion of the logging tool. 12 figs.

Vail, W.B. III; Momii, S.T.

1998-02-10T23:59:59.000Z

64

Viscosity Bound and Causality Violation  

SciTech Connect

In recent work we showed that, for a class of conformal field theories (CFT) with Gauss-Bonnet gravity dual, the shear viscosity to entropy density ratio, {eta}/s, could violate the conjectured Kovtun-Starinets-Son viscosity bound, {eta}/s{>=}1/4{pi}. In this Letter we argue, in the context of the same model, that tuning {eta}/s below (16/25)(1/4{pi}) induces microcausality violation in the CFT, rendering the theory inconsistent. This is a concrete example in which inconsistency of a theory and a lower bound on viscosity are correlated, supporting the idea of a possible universal lower bound on {eta}/s for all consistent theories.

Brigante, Mauro; Liu, Hong [Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States); Myers, Robert C. [Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5 (Canada); Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1 (Canada); Shenker, Stephen; Yaida, Sho [Department of Physics, Stanford University, Stanford, California 94305 (United States)

2008-05-16T23:59:59.000Z

65

Bounds for nonlocality distillation protocols  

SciTech Connect

Nonlocality can be quantified by the violation of a Bell inequality. Since this violation may be amplified by local operations, an alternative measure has been proposed--distillable nonlocality. The alternative measure is difficult to calculate exactly due to the double exponential growth of the parameter space. In this paper, we give a way to bound the distillable nonlocality of a resource by the solutions to a related optimization problem. Our upper bounds are exponentially easier to compute than the exact value and are shown to be meaningful in general and tight in some cases.

Forster, Manuel [Computer Science Department, ETH Zuerich, CH-8092 Zuerich (Switzerland)

2011-06-15T23:59:59.000Z

66

Mixed convection in the thermal entrance region of symmetrically and asymmetrically heated vertical flat duct with upward or downward air-flow  

SciTech Connect

A numerical investigation has been conducted on the effect of body force on pure forced convection of the upward or downward air-flow in the thermal entrance region between vertical parallel plates with uniform wall temperature. The governing equations based on the usual Boussinesq approximation are solved for the symmetrically and asymmetrically heated parallel plates. Numerically predicted friction factors C{sub f} and local Nusselt numbers Nu{sub x} are compared with their counterparts, C*{sub f} and Nu*{sub x}, for pure forced convection.

Naito, Etsuro; Nagano, Yasutaka

1999-07-01T23:59:59.000Z

67

Lower bounds for randomized Exclusive Write PRAMs  

SciTech Connect

In this paper we study the question: How useful is randomization in speeding up Exclusive Write PRAM computations? Our results give further evidence that randomization is of limited use in these types of computations. First we examine a compaction problem on both the CREW and EREW PRAM models, and we present randomized lower bounds which match the best deterministic lower bounds known. (For the CREW PRAM model, the lower bound is asymptotically optimal.) These are the first non-trivial randomized lower bounds known for the compaction problem on these models. We show that our lower bounds also apply to the problem of approximate compaction. Next we examine the problem of computing boolean functions on the CREW PRAM model, and we present a randomized lower bound, which improves on the previous best randomized lower bound for many boolean functions, including the OR function. (The previous lower bounds for these functions were asymptotically optimal, but we improve the constant multiplicative factor.) We also give an alternate proof for the randomized lower bound on PARITY, which was already optimal to within a constant additive factor. Lastly, we give a randomized lower bound for integer merging on an EREW PRAM which matches the best deterministic lower bound known. In all our proofs, we use the Random Adversary method, which has previously only been used for proving lower bounds on models with Concurrent Write capabilities. Thus this paper also serves to illustrate the power and generality of this method for proving parallel randomized lower bounds.

MacKenzie, P.D.

1995-05-02T23:59:59.000Z

68

Minimal surfaces bounded by elastic lines  

Science Journals Connector (OSTI)

...117 Minimal surfaces bounded by elastic lines L. Giomi 1 L. Mahadevan 1 2 * * Author...a minimal surface bounded by an elastic line: the Euler-Plateau problem. We use...a minimal surface bounded by an elastic line. The competition between the surface tension...

2012-01-01T23:59:59.000Z

69

Relativistic self-focusing of ultra-high intensity X-ray laser beams in warm quantum plasma with upward density profile  

SciTech Connect

The results of a numerical study of high-intensity X-ray laser beam interaction with warm quantum plasma (WQP) are presented. By means of an upward ramp density profile combined with quantum factors specially the Fermi velocity, we have demonstrated significant relativistic self-focusing (RSF) of a Gaussian electromagnetic beam in the WQP where the Fermi temperature term in the dielectric function is important. For this purpose, we have considered the quantum hydrodynamics model that modifies refractive index of inhomogeneous WQPs with the inclusion of quantum correction through the quantum statistical and diffraction effects in the relativistic regime. Also, to better illustration of the physical difference between warm and cold quantum plasmas and their effect on the RSF, we have derived the envelope equation governing the spot size of X-ray laser beam in Q-plasmas. In addition to the upward ramp density profile, we have found that the quantum effects would be caused much higher oscillation and better focusing of X-ray laser beam in the WQP compared to that of cold quantum case. Our computational results reveal the importance of the use of electrons density profile and Fermi speed in enhancing self-focusing of laser beam.

Habibi, M., E-mail: habibi.physics@gmail.com [Young Researchers and Elite Club, Shirvan Branch, Islamic Azad University, Shirvan (Iran, Islamic Republic of); Ghamari, F. [Young Researchers and Elite Club, Khorramabad Branch, Islamic Azad University, Khorramabad (Iran, Islamic Republic of)

2014-05-15T23:59:59.000Z

70

Dr. Neal J. Smatresk Vice President  

E-Print Network (OSTI)

on page 2) Upward Bound Students Visit Washington, D.C. By Kelly Yurchick, Upward Bound Academic Counselor

Hemmers, Oliver

71

Holographic Bound From Second Law of Thermodynamics  

E-Print Network (OSTI)

A necessary condition for the validity of the holographic principle is the holographic bound: the entropy of a system is bounded from above by a quarter of the area of a circumscribing surface measured in Planck areas. This bound cannot be derived at present from consensus fundamental theory. We show with suitable {\\it gedanken} experiments that the holographic bound follows from the generalized second law of thermodynamics for both generic weakly gravitating isolated systems and for isolated, quiescent and nonrotating strongly gravitating configurations well above Planck mass. These results justify Susskind's early claim that the holographic bound can be gotten from the second law.

Jacob D. Bekenstein

2000-03-08T23:59:59.000Z

72

REFINED BOUNDS ON THE NUMBER OF CONNECTED ...  

E-Print Network (OSTI)

Apr 6, 2011 ... Smith inequality (see Theorem 2.5) a bound on the number of semi- ... then using Smith inequality, have been used before in several different...

2011-04-06T23:59:59.000Z

73

The viscosity bound in string theory  

E-Print Network (OSTI)

The ratio of shear viscosity to entropy density $\\eta/s$ of any material in nature has been conjectured to have a lower bound of $1/4\\pi$, the famous KSS bound. We examine string theory models for evidence in favour of and against this conjecture. We show that in a broad class of models quantum corrections yield values of $\\eta/s$ just above the KSS bound. However, incorporating matter fields in the fundamental representation typically leads to violations of this bound. We also outline a program to extend AdS/CFT methods to RHIC phenomenology.

Aninda Sinha; Robert C. Myers

2009-07-27T23:59:59.000Z

74

Spontaneous R-parity violation bounds  

Science Journals Connector (OSTI)

We investigate bounds from tree-level and one-loop processes in generic supersymmetric models with spontaneous R-parity breaking in the superpotential. We analyze the bounds from a general point of view. The bounds are applicable both for all models with spontaneous R-parity violation and for explicit bilinear R-parity violation based on general lepton-chargino and neutrino-neutralino mixings. We find constraints from semileptonic B, D, and K decays, leptonic decays of the ? and ?, electric dipole moments, as well as bounds for the anomalous magnetic moment of the muon.

M. Frank and K. Huitu

2001-10-09T23:59:59.000Z

75

Hybrid LP/SDP Bounding Procedure  

E-Print Network (OSTI)

Hybrid LP/SDP Bounding Procedure. Fabio Furini1 and Emiliano Traversi2. 1 LIPN, Universit Paris 13, 93430 Villetaneuse, France.

2012-10-24T23:59:59.000Z

76

Strict Lower Bounds for Model Checking BPA  

E-Print Network (OSTI)

Strict Lower Bounds for Model Checking BPA Richard Mayr Institut f¨ur Informatik, Technische lower bounds for the complexity of several model checking problems for BPA and branching­time logics Algebra (BPA) processes were defined by Bergstra and Klop in [BK85]. They are transition systems

?ayr, Richard

77

Resetting Bounding Nodes in Acquiring Spanish  

E-Print Network (OSTI)

This paper addresses the issue of whether L2 learners can reset parameters, by testing English speakers learning Spanish on their ability to reset the bounding node parameter. The bounding nodes are : IP and NP in English, CP and NP in Spanish...

Cebreiros, Ramiro

1996-01-01T23:59:59.000Z

78

Jordan T. Thayer (UNH) Bounded Suboptimal Search 1 / 19 Bounded Suboptimal Search  

E-Print Network (OSTI)

Jordan T. Thayer (UNH) Bounded Suboptimal Search ­ 1 / 19 Bounded Suboptimal Search: A Direct Approach Using Inadmissible Estimates Jordan T. Thayer and Wheeler Ruml jtd7, ruml at cs Search s Three Ideas EES Conclusion Jordan T. Thayer (UNH) Bounded Suboptimal Search ­ 2 / 19 Grid Four

Ruml, Wheeler

79

Studies on upward flame spread  

E-Print Network (OSTI)

transfer coefficient heat of combustion per unit mass ofwidth, m ? and the heat of combustion per unit mass of fuelthe sample, and the heat of combustion ?H c was assigned the

Gollner, Michael J.

2012-01-01T23:59:59.000Z

80

USF Graduate Catalog 20142015 http://health.usf.edu/publichealth/  

E-Print Network (OSTI)

data, analysis of environmental data such as air pollution, health outcome evaluation, emdical and environmental lung disease, inflammation and asthma, Environmental pollution assessment and modeling mining; Applications ranging from design and analysis of field trials for prevention

Meyers, Steven D.

Note: This page contains sample records for the topic "usf upward bound" 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

USF System USF USFSP USFSM Number: 0-315  

E-Print Network (OSTI)

Standards Institute (ANSI) Standard Z136.1-2007, American National Standard for the Safe Use of Lasers; ANSI

Meyers, Steven D.

82

USF System USF USFSP USFSM Number: 6-010  

E-Print Network (OSTI)

responsible for implementing emergency management initiatives and conducting emergency operations. 7. Acquire

Meyers, Steven D.

83

USF MAGAZINE | WINTER 200932 USF MAGAZINE | WINTER 2009 33 Wherehaveallthe  

E-Print Network (OSTI)

the controversy sur- rounding the association between global warming and am- phibian extinctions. "There is indeed explores pollution, climate change and disease in an attempt to understand the global decline of amphibians canaries in their role of predicting environmental dangers. Canaries were once carried into coal mines

Rohr, Jason

84

From Thermodynamics to the Bound on Viscosity  

E-Print Network (OSTI)

We show that the generalized second law of thermodynamics may shed much light on the mysterious Kovtun-Son-Starinets (KSS) bound on the ratio of viscosity to entropy density. In particular, we obtain the lower bound $\\eta/s +O(\\eta^3/s^3)\\geq 1/4\\pi$. Furthermore, for conformal field theories we obtain a new fundamental bound on the value of the relaxation coefficient $\\tau_{\\pi}$ of causal hydrodynamics, which has been the focus of much recent attention: $(\\tau_{\\pi}T)^2\\geq {{(\\sqrt{3}-1)}/{2\\pi^2}}$.

Shahar Hod

2009-07-07T23:59:59.000Z

85

Sound velocity bound and neutron stars  

E-Print Network (OSTI)

It has been conjectured that the velocity of sound in any medium is smaller than the velocity of light in vacuum divided by $\\sqrt{3}$. Simple arguments support this bound in non-relativistic and/or weakly coupled theories. The bound has been demonstrated in several classes of strongly coupled theories with gravity duals and is saturated only in conformal theories. We point out that the existence of neutron stars with masses around two solar masses combined with the knowledge of the equation of state of hadronic matter at "low" densities is in strong tension with this bound.

Paulo F. Bedaque; Andrew W. Steiner

2015-01-25T23:59:59.000Z

86

NordhausGaddum bounds for locating domination  

Science Journals Connector (OSTI)

Abstract A dominating set S of graph G is called metric-locatingdominating if it is also locating, that is, if every vertex v is uniquely determined by its vector of distances to the vertices in S . If moreover, every vertex v not in S is also uniquely determined by the set of neighbors of v belonging to S , then it is said to be locatingdominating. Locating, metric-locatingdominating and locatingdominating sets of minimum cardinality are called ? -codes, ? -codes and ? -codes, respectively. A NordhausGaddum bound is a tight lower or upper bound on the sum or product of a parameter of a graph G and its complement G . In this paper, we present some NordhausGaddum bounds for the location number ? , the metric-locationdomination number ? and the locationdomination number ? . Moreover, in each case, the graph family attaining the corresponding bound is fully characterized.

C. Hernando; M. Mora; I.M. Pelayo

2014-01-01T23:59:59.000Z

87

REFINED BOUNDS ON THE NUMBER OF CONNECTED ...  

E-Print Network (OSTI)

Nov 6, 2011 ... closure imply using the well-known Smith inequality (see Theorem 2.4) a bound on the number of semi-algebraically connected components of...

2011-11-06T23:59:59.000Z

88

On semidefinite programming bounds for graph bandwidth  

E-Print Network (OSTI)

May 24, 2011 ... We propose two new lower bounds on graph bandwidth and cyclic ... matrix computations, parallel computations, VLSI layout, etc; see, for example [19]. ...... problems by SeDuMi [30] using the Yalmip interface [22] with Matlab.

2011-05-24T23:59:59.000Z

89

Risk Bounds for Mixture Density Estimation  

E-Print Network (OSTI)

In this paper we focus on the problem of estimating a bounded density using a finite combination of densities from a given class. We consider the Maximum Likelihood Procedure (MLE) and the greedy procedure described by ...

Rakhlin, Alexander

2004-01-27T23:59:59.000Z

90

Bekenstein bound in asymptotically free field theory  

SciTech Connect

For spatially bounded free fields, the Bekenstein bound states that the specific entropy satisfies the inequality (S/E){<=}2{pi}R, where R stands for the radius of the smallest sphere that circumscribes the system. The validity of the Bekenstein bound in the asymptotically free side of the Euclidean ({lambda}{phi}{sup 4}){sub d} scalar field theory is investigated. We consider the system in thermal equilibrium with a reservoir at temperature {beta}{sup -1} and defined in a compact spatial region without boundaries. Using the effective potential, we discuss the thermodynamic of the model. For low and high temperatures the system presents a condensate. We present the renormalized mean energy E and entropy S for the system and show in which situations the specific entropy satisfies the quantum bound.

Arias, E.; Svaiter, N. F.; Menezes, G. [Centro Brasileiro de Pesquisas Fisicas-CBPF, Rua Dr. Xavier Sigaud 150, Rio de Janeiro, RJ, 22290-180 (Brazil); Instituto de Fisica Teorica, Universidade Estadual Paulista, Rua Dr. Bento Teobaldo Ferraz 271, Bloco II, Barra Funda, Sao Paulo, SP, 01140-070 (Brazil)

2010-08-15T23:59:59.000Z

91

Quantum Lower Bounds by Polynomials Robert Beals  

E-Print Network (OSTI)

Quantum Lower Bounds by Polynomials Robert Beals University of Arizonaz Harry Buhrman CWI.O. Box 210089, 617 N. Santa Rita Ave, Tucson AZ 85721­0089, USA. E-mail: beals@math.arizona.edu. xCWI, P

de Wolf, Ronald

92

Theory and Modeling of Weakly Bound/Physisorbed Materials for...  

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

Theory and Modeling of Weakly BoundPhysisorbed Materials for Hydrogen Storage Theory and Modeling of Weakly BoundPhysisorbed Materials for Hydrogen Storage Presentation on the...

93

Computations of entropy bounds: Multidimensional geometric methods  

SciTech Connect

The entropy bounds for constructive upper bound on the needed number-of-bits for solving a dichotomy is represented by the quotient of two multidimensional solid volumes. For minimization of this upper bound exact calculation of the volume of this quotient is needed. Three methods for exact computing of the volume of a given nD volume are presented: (1) general method for calculation any nD volume by slicing it into volumes of decreasing dimension is presented; (2) a method applying appropriate curvilinear coordinate system is described for volume bounded by symmetrical curvilinear hypersurfaces (spheres, cones, hyperboloids, ellipsoids, cylinders, etc.); and (3) an algorithm for dividing any nD complex into simplices and computing of the volume of the simplices is presented, supplemented by a general formula for calculation of volume of an nD simplex. These mathematical methods enable exact calculation of volume of any complicated multidimensional solids. The methods allow for the calculation of the minimal volume and lead to tighter bounds on the needed number-of-bits.

Makaruk, H.E.

1998-02-01T23:59:59.000Z

94

Upper bounds on the photon mass  

SciTech Connect

The effects of a nonzero photon rest mass can be incorporated into electromagnetism in a simple way using the Proca equations. In this vein, two interesting implications regarding the possible existence of a massive photon in nature, i.e., tiny alterations in the known values of both the anomalous magnetic moment of the electron and the gravitational deflection of electromagnetic radiation, are utilized to set upper limits on its mass. The bounds obtained are not as stringent as those recently found; nonetheless, they are comparable to other existing bounds and bring new elements to the issue of restricting the photon mass.

Accioly, Antonio [Laboratorio de Fisica Experimental (LAFEX), Centro Brasileiro de Pesquisas Fisicas (CBPF), Rua Dr. Xavier Sigaud 150, Urca, 22290-180, Rio de Janeiro, RJ (Brazil); Group of Field Theory from First Principles, Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bl. II-Barra Funda, 01140-070 Sao Paulo, SP (Brazil); Instituto de Fisica Teorica (IFT), Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bl. II-Barra Funda, 01140-070 Sao Paulo, SP (Brazil); Helayeel-Neto, Jose [Laboratorio de Fisica Experimental (LAFEX), Centro Brasileiro de Pesquisas Fisicas (CBPF), Rua Dr. Xavier Sigaud 150, Urca, 22290-180, Rio de Janeiro, RJ (Brazil); Group of Field Theory from First Principles, Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bl. II-Barra Funda, 01140-070 Sao Paulo, SP (Brazil); Scatena, Eslley [Instituto de Fisica Teorica (IFT), Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bl. II-Barra Funda, 01140-070 Sao Paulo, SP (Brazil); Group of Field Theory from First Principles, Sao Paulo State University (UNESP), Rua Dr. Bento Teobaldo Ferraz 271, Bl. II-Barra Funda, 01140-070 Sao Paulo, SP (Brazil)

2010-09-15T23:59:59.000Z

95

Continuous-variable multipartite unlockable bound entangled Gaussian states  

E-Print Network (OSTI)

Continuous-variable (CV) multipartite unlockable bound-entangled states is investigated in this paper. Comparing with the qubit multipartite unlockable bound-entangled states, CV multipartite unlockable bound-entangled states present the new and different properties. CV multipartite unlockable bound-entangled states may serve as a useful quantum resource for new multiparty communication schemes. The experimental protocol for generating CV unlockable bound-entangled states is proposed with a setup that is at present accessible.

Jing Zhang

2011-03-09T23:59:59.000Z

96

Algorithms for Graphs (Locally) Bounded Treewidth  

E-Print Network (OSTI)

set, vertex cover and independent set. Others used this approach to solve other NP-hard problemsAlgorithms for Graphs of (Locally) Bounded Treewidth by MohammadTaghi Hajiaghayi A thesis presented-hard and hence there is no efficient algorithm for solving them, unless P= NP. One way to overcome this hardness

Hajiaghayi, Mohammad

97

Online Deadline Scheduling with Bounded Energy Efficiency  

E-Print Network (OSTI)

Online Deadline Scheduling with Bounded Energy Efficiency Joseph Wun-Tat Chan1 , Tak-Wah Lam 2 concern when compared to throughput and the schedules targeted may be very poor in energy efficiency subject to a user-defined threshold of energy efficiency. We first show that all deterministic online

Wong, Prudence W.H.

98

EQUATIONS FOR LOWER BOUNDS ON BORDER RANK  

E-Print Network (OSTI)

EQUATIONS FOR LOWER BOUNDS ON BORDER RANK JONATHAN D. HAUENSTEIN, CHRISTIAN IKENMEYER, AND J of bilinear maps of border rank at most r. We apply these methods to several cases including the case r = 6 multiplication operator M2, which gives a new proof that the border rank of the multiplication of 2 ? 2 matrices

Hauenstein, Jonathan

99

Out of Bounds Additive Manufacturing Christopher  

E-Print Network (OSTI)

#12;Out of Bounds Additive Manufacturing Christopher Holshouser, Clint Newell, and Sid Palas, Tenn. The Big Area Additive Manufacturing system has the potential to manufacture parts completely) are working on an additive manufacturing (AM) system (Big Area Additive Manufacturing, or BAAM) capable

Pennycook, Steve

100

DEPARTURE FROM NORMALITY AND EIGENVALUE PERTURBATION BOUNDS  

E-Print Network (OSTI)

be defective. Furthermore, Gerschgorin­like inclusion regions in the Frobenius are derived, as well as bounds, for instance, to be defective. They also do not depend on the conditioning of the perturbed eigenvectors, which and for Hermitian matrices. # Center for Research in Scientific Computation, Department of Mathematics, North Car

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We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

Cellulose-Bound Magnesium Diboride Superconductivity  

E-Print Network (OSTI)

Cellulose-Bound Magnesium Diboride Superconductivity Y.L. Lin and M.O. Pekguleryuz Department Canada Abstract--Two-phase superconductor tapes were produced by blending high purity magnesium diboride junctions. I. INTRODUCTION Magnesium diboride was found to be superconducting in 2001 by Nagamatsu et al. [1

Ryan, Dominic

102

On Quantum Capacity and its Bound  

E-Print Network (OSTI)

The quantum capacity of a pure quantum channel and that of classical-quantum-classical channel are discussed in detail based on the fully quantum mechanical mutual entropy. It is proved that the quantum capacity generalizes the so-called Holevo bound.

Masanori Ohya; Igor V. Volovich

2004-06-29T23:59:59.000Z

103

Patch Bounding Circles Nearest Neighbor >100ha  

E-Print Network (OSTI)

Patch Bounding Circles Nearest Neighbor >100ha 0 meters / >100ha Edge Dumbarton Marsh New Chicago Marsh Guadalupe Slough Bair Island 0 5 Miles 0 5 Kilometers µ Patch patterns of tidal marsh. We used the marsh patch boundaries as potential barriers to movement for tidal

104

BOUNDS FOR SPECTRAL CLUSTERS HART F. SMITH  

E-Print Network (OSTI)

Lq BOUNDS FOR SPECTRAL CLUSTERS HART F. SMITH Abstract. In these notes, we review recent results] establish the same estimates under the assumption that the metric is C1,1. It is known by examples of Smith to the wave equation. The author was supported in part by NSF grant DMS-0140499. 1 #12;2 HART F. SMITH

Smith, Hart F.

105

Statistical atom: Handling the strongly bound electrons  

Science Journals Connector (OSTI)

We show how the corrections for strongly bound electrons are incorporated into the Thomas-Fermi energy functional, and derive for the density the analog of what is known as Scott's correction to the energy. The scaling properties of this energy functional supply a new, consistent derivation of the Scott term.

Berthold-Georg Englert and Julian Schwinger

1984-05-01T23:59:59.000Z

106

A branch-and-bound project assignment methodology with generalized network strategies for updating bounds  

E-Print Network (OSTI)

-Diaz, Sastri, and Paz 1995). Additionally, an efficient branch-and- bound procedure is highly desirable to solve integer programming models, such as the one being considered in this thesis. In summary the following are the significant contributions... heuristically to obtain near-optimal solutions. Gavish and Pirkul (1991) employed heuristic procedures and a branch-and-bound procedure to develop algorithms for solving the multi-resource generalized assignment problem. Garcia- Diaz, Sastri and Paz (1995...

Jittamai, Phongchai

2012-06-07T23:59:59.000Z

107

Copy of Bound Original For Scanning  

Office of Legacy Management (LM)

Copy of Bound Original Copy of Bound Original For Scanning Document # 1\1\ i g -b DOE/El/-0005/6 Formerly Utilized IVIEWAEC Site! Remedial Action Progrhn, F@diilogical Survey of the Seaway Industrial Par Tonawanda, New Yor May 197 Final Repel Prepared f U.S. Department of Enerc Assistant Secretary for Environme Division of Environmental Control Technolo Washington, D.C. 205, uric Contract No. W-7405-ENG- - - - Available from: ' : -. National Technical Information Service (NTIS) U.S. Department of Comnerce 5285 Port Royal Road Springfield, Virginia 22161 price: Printed Copy: $ 5.25 Microffche: $ 3.00 PREFACE This series of reports results from a program initiated in 1974 by the Atomic Energy Commission (AEC) for determination of the condition of sites formerly utilized by the Manhattan Engineering District &ED)

108

Viscosity bound violation in higher derivative gravity  

SciTech Connect

Motivated by the vast string landscape, we consider the shear viscosity to entropy density ratio in conformal field theories dual to Einstein gravity with curvature square corrections. After field redefinitions these theories reduce to Gauss-Bonnet gravity, which has special properties that allow us to compute the shear viscosity nonperturbatively in the Gauss-Bonnet coupling. By tuning of the coupling, the value of the shear viscosity to entropy density ratio can be adjusted to any positive value from infinity down to zero, thus violating the conjectured viscosity bound. At linear order in the coupling, we also check consistency of four different methods to calculate the shear viscosity, and we find that all of them agree. We search for possible pathologies associated with this class of theories violating the viscosity bound.

Brigante, Mauro; Liu Hong; Myers, Robert C.; Shenker, Stephen; Yaida, Sho [Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, MA 02139 (United States); Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5 (Canada) and Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1 (Canada); Department of Physics, Stanford University, Stanford, CA 94305 (United States)

2008-06-15T23:59:59.000Z

109

Mutual information rate and bounds for it  

E-Print Network (OSTI)

The amount of information exchanged per unit of time between two nodes in a dynamical network or between two data sets is a powerful concept for analysing complex systems. This quantity, known as the mutual information rate (MIR), is calculated from the mutual information, which is rigorously defined only for random systems. Moreover, the definition of mutual information is based on probabilities of significant events. This work offers a simple alternative way to calculate the MIR in dynamical (deterministic) networks or between two data sets (not fully deterministic), and to calculate its upper and lower bounds without having to calculate probabilities, but rather in terms of well known and well defined quantities in dynamical systems. As possible applications of our bounds, we study the relationship between synchronisation and the exchange of information in a system of two coupled maps and in experimental networks of coupled oscillators.

M. S. Baptista; R. M. Rubinger; E. R. V. Junior; J. C. Sartorelli; U. Parlitz; C. Grebogi

2011-04-18T23:59:59.000Z

110

Performance bound for quantum absorption refrigerators  

E-Print Network (OSTI)

An implementation of quantum absorption chillers with three qubits has been recently proposed, that is ideally able to reach the Carnot performance regime. Here we study the working efficiency of such self-contained refrigerators, adopting a consistent treatment of dissipation effects. We demonstrate that the coefficient of performance at maximum cooling power is upper bounded by 3/4 of the Carnot performance. The result is independent of the details of the system and the equilibrium temperatures of the external baths. We provide design prescriptions that saturate the bound in the limit of a large difference between the operating temperatures. Our study suggests that delocalized dissipation, which must be taken into account for a proper modelling of the machine-baths interaction, is a fundamental source of irreversibility which prevents the refrigerator from approaching the Carnot performance arbitrarily closely in practice. The potential role of quantum correlations in the operation of these machines is also investigated.

Luis A. Correa; Jos P. Palao; Gerardo Adesso; Daniel Alonso

2012-12-18T23:59:59.000Z

111

Continuous Dynamical Decoupling with Bounded Controls  

E-Print Network (OSTI)

We develop a theory of continuous decoupling with bounded controls from a geometric perspective. Continuous decoupling with bounded controls can accomplish the same decoupling effect as the bang-bang control while using realistic control resources and it is robust against systematic implementation errors. We show that the decoupling condition within this framework is equivalent to average out error vectors whose trajectories are determined by the control Hamiltonian. The decoupling pulses can be intuitively designed once the structure function of the corresponding SU(n) is known and is represented from the geometric perspective. Several examples are given to illustrate the basic idea. From the physical implementation point of view we argue that the efficiency of the decoupling is determined not by the order of the decoupling group but by the minimal time required to finish a decoupling cycle.

Pochung Chen

2005-07-28T23:59:59.000Z

112

Multipartite secret key distillation and bound entanglement  

SciTech Connect

Recently it has been shown that quantum cryptography beyond pure entanglement distillation is possible and a paradigm for the associated protocols has been established. Here we systematically generalize the whole paradigm to the multipartite scenario. We provide constructions of new classes of multipartite bound entangled states, i.e., those with underlying twisted Greenberger-Horne-Zeilinger (GHZ) structure and nonzero distillable cryptographic key. We quantitatively estimate the key from below with the help of the privacy squeezing technique.

Augusiak, Remigiusz; Horodecki, Pawel [Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-952 Gdansk (Poland) and ICFO-Institute Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels (Barcelona) (Spain); Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-952 Gdansk (Poland)

2009-10-15T23:59:59.000Z

113

Multipartite secret key distillation and bound entanglement  

E-Print Network (OSTI)

Recently it has been shown that quantum cryptography beyond pure entanglement distillation is possible and a paradigm for the associated protocols has been established. Here we systematically generalize the whole paradigm to the multipartite scenario. We provide constructions of new classes of multipartite bound entangled states, i.e., those with underlying twisted GHZ structure and nonzero distillable cryptographic key. We quantitatively estimate the key from below with help of the privacy squeezing technique.

Remigiusz Augusiak; Pawel Horodecki

2008-11-21T23:59:59.000Z

114

High-Accuracy Semidefinite Programming Bounds for Kissing ...  

E-Print Network (OSTI)

Feb 10, 2009 ... port on high-accuracy calculations of these upper bounds for n ? 24. The bound for n = 16 implies a conjecture of Conway and Sloane: There...

2010-04-30T23:59:59.000Z

115

Decodability of Group Homomorphisms beyond the Johnson Bound  

E-Print Network (OSTI)

Decodability of Group Homomorphisms beyond the Johnson Bound Irit Dinur Elena Grigorescu Swastik thus give a broad class of codes whose list-decoding ra- dius exceeds the "Johnson bound". Examples

Sudan, Madhu

116

Decodability of Group Homomorphisms beyond the Johnson Bound  

E-Print Network (OSTI)

Decodability of Group Homomorphisms beyond the Johnson Bound Irit Dinur Elena Grigorescu Swastik is at most p(1/ ). We thus give a broad class of codes whose list-decoding radius exceeds the "Johnson bound

Sudan, Madhu

117

Improved lower bound on the entropic uncertainty relation  

SciTech Connect

We present a lower bound on the entropic uncertainty relation for the distinguished measurements of two observables in a d-dimensional Hilbert space for d up to 5. This bound provides an improvement over the best one yet available. The feasibility of the obtained bound presenting an improvement for higher dimensions is also discussed.

Jafarpour, Mojtaba; Sabour, Abbass [Physics Department, Shahid Chamran University, Ahvaz (Iran, Islamic Republic of)

2011-09-15T23:59:59.000Z

118

Improved lower bound on the entropic uncertainty relation  

Science Journals Connector (OSTI)

We present a lower bound on the entropic uncertainty relation for the distinguished measurements of two observables in a d-dimensional Hilbert space for d up to 5. This bound provides an improvement over the best one yet available. The feasibility of the obtained bound presenting an improvement for higher dimensions is also discussed.

Mojtaba Jafarpour and Abbass Sabour

2011-09-08T23:59:59.000Z

119

Different bounds on the different Betti numbers of semialgebraic sets #  

E-Print Network (OSTI)

Different bounds on the different Betti numbers of semi­algebraic sets # Saugata Basu School­ plexity (the sum of the Betti numbers) of basic semi­algebraic sets. This bound is tight as one can were known on the individual higher Betti numbers. In this paper we prove separate bounds on the di

Basu, Saugata

120

Unlocking the Mysteries of the Bounding Box  

E-Print Network (OSTI)

Service is available online at http://www.fs.fed.us/institute/ecoregions/ eco_download.html 16. The ?1:2,000,000-Scale Hydrologic Unit Boundaries? from the US Geological Survey is available online at http://water.usgs.gov/GIS/huc.html 17. Circularity...Coordinates Series A, No. 2 Unlocking the Mysteries of the Bounding Box Persistent URL for citation: http://purl.oclc.org/coordinates/a2.pdf Date of Publication: 08/29/05 Douglas R. Caldwell Douglas R. Caldwell (e-mail: Douglas.R. Caldwell...

Caldwell, Douglas R.

2005-08-29T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

Magnetic spectral bounds on starlike plane domains  

E-Print Network (OSTI)

We develop sharp upper bounds for energy levels of the magnetic Laplacian on starlike plane domains, under either Dirichlet or Neumann boundary conditions and assuming a constant magnetic field in the transverse direction. Our main result says that $\\sum_{j=1}^n \\Phi \\big( \\lambda_j A/G \\big)$ is maximal for a disk whenever $\\Phi$ is concave increasing, $n \\geq 1$, the domain has area $A$, and $\\lambda_j$ is the $j$-th Dirichlet eigenvalue of the magnetic Laplacian $\\big( i\

R. S. Laugesen; B. A. Siudeja

2014-01-04T23:59:59.000Z

122

Best upper and lower bounds of the generalized binomial distribution  

SciTech Connect

The persistent interest in efficient reliability bounds for complex-structure systems keeps producing new bounds, which are characterized by low computational costs and ensure acceptable error levels for applications. In this paper, we construct best bounds for the generalized binomial distribution (GBD) (known as {open_quotes}m out of n{close_quotes} in reliability theory), which are derived using edge-disjoint paths and cuts. We also propose fundamentally new bounds based on the geometric-mean transformation of the GBD to a homogeneous BD. These new bounds have certain advantages both in terms of computational complexity and in terms of the error level.

Suprun, A.D.

1995-01-01T23:59:59.000Z

123

New bounding techniques for channel codes over quasi-static fading channels  

E-Print Network (OSTI)

approach which provides convergent upper bounds of coded systems over QSFCs is addressed first. It is shown that previous Gallager bounds employing trivial low SNR bounds tended to be quite loose. Then improved low instantaneous SNR bounds are derived...

Hu, Jingyu

2005-04-01T23:59:59.000Z

124

Bound states in a strong magnetic field  

SciTech Connect

We expect a strong magnetic field to be produced in the perpendicular direction to the reaction plane, in a noncentral heavy-ion collision . The strength of the magnetic field is estimated to be eB{approx}m{sup 2}{sub {pi}}{approx} 0.02 GeV{sup 2} at the RHIC and eB{approx} 15m{sup 2}{sub {pi}}{approx} 0.3 GeV{sup 2} at the LHC. We investigate the effects of the magnetic field on B{sup 0} and D{sup 0} mesons, focusing on the changes of the energy levels and of the mass of the bound states.

Machado, C. S.; Navarra, F. S.; Noronha, J.; Oliveira, E. G. [Instituto de Fisica, Universidade de Sao Paulo Rua do Matao, Travessa R, 187, 05508-090 Sao Paulo, SP (Brazil); Ferreira Filho, L. G. [Departamento de Matematica e Computacao, Faculdade de Tecnologia, Universidade do Estado do Rio de Janeiro Rodovia Presidente Dutra, km 298, Polo Industrial, CEP 27537-000, Resende, RJ (Brazil)

2013-03-25T23:59:59.000Z

125

Bounding biomass in the Fisher equation  

E-Print Network (OSTI)

The FKPP equation with a variable growth rate and advection by an incompressible velocity field is considered as a model for plankton dispersed by ocean currents. If the average growth rate is negative then the model has a survival-extinction transition; the location of this transition in the parameter space is constrained using variational arguments and delimited by simulations. The statistical steady state reached when the system is in the survival region of parameter space is characterized by integral constraints and upper and lower bounds on the biomass and productivity that follow from variational arguments and direct inequalities. In the limit of zero-decorrelation time the velocity field is shown to act as Fickian diffusion with an eddy diffusivity much larger than the molecular diffusivity and this allows a one-dimensional model to predict the biomass, productivity and extinction transitions. All results are illustrated with a simple growth and stirring model.

Birch, Daniel A; Young, William R

2007-01-01T23:59:59.000Z

126

Bounding biomass in the Fisher equation  

E-Print Network (OSTI)

The FKPP equation with a variable growth rate and advection by an incompressible velocity field is considered as a model for plankton dispersed by ocean currents. If the average growth rate is negative then the model has a survival-extinction transition; the location of this transition in the parameter space is constrained using variational arguments and delimited by simulations. The statistical steady state reached when the system is in the survival region of parameter space is characterized by integral constraints and upper and lower bounds on the biomass and productivity that follow from variational arguments and direct inequalities. In the limit of zero-decorrelation time the velocity field is shown to act as Fickian diffusion with an eddy diffusivity much larger than the molecular diffusivity and this allows a one-dimensional model to predict the biomass, productivity and extinction transitions. All results are illustrated with a simple growth and stirring model.

Daniel A. Birch; Yue-Kin Tsang; William R. Young

2007-03-17T23:59:59.000Z

127

Congeniality bounds on quark masses from nucleosynthesis  

Science Journals Connector (OSTI)

The work of Jaffe, Jenkins and Kimchi [Phys. Rev. D 79, 065014 (2009)] is revisited to see if indeed the region of congeniality found in their analysis survives further restrictions from nucleosynthesis. It is observed that much of their congenial region disappears when imposing conditions required to produce the correct and required abundances of the primordial elements as well as ensure that stars can continue to burn hydrogen nuclei to form helium as the first step in forming heavier elements in stellar nucleosynthesis. The remaining region is a very narrow slit reduced in width from around 29MeV found by Jaffe etal. to only about 2.2MeV in the difference of the nucleon/quark masses. Further bounds on ?mq/mq seem to reduce even this narrow slit to the physical point itself.

M. Hossain Ali; M. Jakir Hossain; Abdullah Shams Bin Tariq

2013-08-02T23:59:59.000Z

128

Precision bounds in noisy quantum metrology  

E-Print Network (OSTI)

In an idealistic setting, quantum metrology protocols allow to sense physical parameters with mean squared error that scales as $1/N^2$ with the number of particles involved---substantially surpassing the $1/N$-scaling characteristic to classical statistics. A natural question arises, whether such an impressive enhancement persists when one takes into account the decoherence effects that are unavoidable in any real-life implementation. In this thesis, we resolve a major part of this issue by describing general techniques that allow to quantify the attainable precision in metrological schemes in the presence of uncorrelated noise. We show that the abstract geometrical structure of a quantum channel describing the noisy evolution of a single particle dictates then critical bounds on the ultimate quantum enhancement. Our results prove that an infinitesimal amount of noise is enough to restrict the precision to scale classically in the asymptotic $N$ limit, and thus constrain the maximal improvement to a constant factor. Although for low numbers of particles the decoherence may be ignored, for large $N$ the presence of noise heavily alters the form of both optimal states and measurements attaining the ultimate resolution. However, the established bounds are then typically achievable with use of techniques natural to current experiments. In this work, we thoroughly introduce the necessary concepts and mathematical tools lying behind metrological tasks, including both frequentist and Bayesian estimation theory frameworks. We provide examples of applications of the methods presented to typical qubit noise models, yet we also discuss in detail the phase estimation tasks in Mach-Zehnder interferometry both in the classical and quantum setting---with particular emphasis given to photonic losses while analysing the impact of decoherence.

Jan Kolodynski

2015-01-02T23:59:59.000Z

129

Optimization Online - Lower Bounds and Exact Algorithms for the ...  

E-Print Network (OSTI)

Dec 16, 2013 ... Lower Bounds and Exact Algorithms for the Quadratic Minimum Spanning Tree Problem. Dilson Pereira(dilsonlucas ***at*** gmail.com)

Dilson Pereira

2013-12-16T23:59:59.000Z

130

Bounds and Algorithms for the Knapsack Problem with Conflict Graph  

E-Print Network (OSTI)

Keywords: Knapsack Problem, Maximum Weight Stable Set Problem, Branch- and-Bound ..... Figure 3: Weighted clique cover algorithm of Held et al. [9].

2014-06-19T23:59:59.000Z

131

Optimization Online - Lower Bounding Procedures for the Single ...  

E-Print Network (OSTI)

Nov 30, 2014 ... Lower Bounding Procedures for the Single Allocation Hub Location Problem. Borzou Rostami(brostami ***at*** mathematik.tu-dortmund.de)

Borzou Rostami

2014-11-30T23:59:59.000Z

132

On Computation of Performance Bounds of Optimal Index Assignment  

E-Print Network (OSTI)

On Computation of Performance Bounds of. Optimal Index Assignment. Xiaolin Wu. Department of Electrical and Computer Engineering. McMaster University...

2010-01-20T23:59:59.000Z

133

Nonlinear local error bounds via a change of metric  

E-Print Network (OSTI)

Oct 23, 2014 ... Abstract: In this work, we improve the approach of Corvellec-Motreanu to nonlinear error bounds for lowersemicontinuous functions on...

Dominique Az

2014-10-23T23:59:59.000Z

134

Performance evaluation of bound diamond ring tools  

SciTech Connect

LLNL is collaborating with the Center for Optics Manufacturing (COM) and the American Precision Optics Manufacturers Association (APOMA) to optimize bound diamond ring tools for the spherical generation of high quality optical surfaces. An important element of this work is establishing an experimentally-verified link between tooling properties and workpiece quality indicators such as roughness, subsurface damage and removal rate. In this paper, we report on a standardized methodology for assessing ring tool performance and its preliminary application to a set of commercially-available wheels. Our goals are to (1) assist optics manufacturers (users of the ring tools) in evaluating tools and in assessing their applicability for a given operation, and (2) provide performance feedback to wheel manufacturers to help optimize tooling for the optics industry. Our paper includes measurements of wheel performance for three 2-4 micron diamond bronze-bond wheels that were supplied by different manufacturers to nominally- identical specifications. Preliminary data suggests that the difference in performance levels among the wheels were small.

Piscotty, M.A.; Taylor, J.S.; Blaedel, K.L.

1995-07-14T23:59:59.000Z

135

Local purity distillation with bounded classical communication  

SciTech Connect

Local pure states are an important resource for quantum computing. The problem of distilling local pure states from mixed ones can be cast in an information theoretic paradigm. The bipartite version of this problem where local purity must be distilled from an arbitrary quantum state shared between two parties, Alice and Bob, is closely related to the problem of separating quantum and classical correlations in the state and in particular, to a measure of classical correlations called the one-way distillable common randomness. In Phys. Rev. A 71, 062303 (2005), the optimal rate of local purity distillation is derived when many copies of a bipartite quantum state are shared between Alice and Bob, and the parties are allowed unlimited use of a unidirectional dephasing channel. In the present paper, we extend this result to the setting in which the use of the channel is bounded. We demonstrate that in the case of a classical-quantum system, the expression for the local purity distilled is efficiently computable and provide examples with their tradeoff curves.

Krovi, Hari; Devetak, Igor [Communication Sciences Institute, University of Southern California, Los Angeles, California 90089 (United States)

2007-07-15T23:59:59.000Z

136

Local purity distillation with bounded classical communication  

E-Print Network (OSTI)

Local pure states are an important resource for quantum computing. The problem of distilling local pure states from mixed ones can be cast in an information theoretic paradigm. The bipartite version of this problem where local purity must be distilled from an arbitrary quantum state shared between two parties, Alice and Bob, is closely related to the problem of separating quantum and classical correlations in the state and in particular, to a measure of classical correlations called the one-way distillable common randomness. In Phys. Rev. A 71, 062303 (2005), the optimal rate of local purity distillation is derived when many copies of a bipartite quantum state are shared between Alice and Bob, and the parties are allowed unlimited use of a unidirectional dephasing channel. In the present paper, we extend this result to the setting in which the use of the channel is bounded. We demonstrate that in the case of a classical-quantum system, the expression for the local purity distilled is efficiently computable and provide examples with their tradeoff curves.

Hari Krovi; Igor Devetak

2007-05-28T23:59:59.000Z

137

Phenomenology of Wall Bounded Newtonian Turbulence  

E-Print Network (OSTI)

We construct a simple analytic model for wall-bounded turbulence, containing only four adjustable parameters. Two of these parameters characterize the viscous dissipation of the components of the Reynolds stress-tensor and other two parameters characterize their nonlinear relaxation. The model offers an analytic description of the profiles of the mean velocity and the correlation functions of velocity fluctuations in the entire boundary region, from the viscous sub-layer, through the buffer layer and further into the log-layer. As a first approximation, we employ the traditional return-to-isotropy hypothesis, which yields a very simple distribution of the turbulent kinetic energy between the velocity components in the log-layer: the streamwise component contains a half of the total energy whereas the wall-normal and the cross-stream components contain a quarter each. In addition, the model predicts a very simple relation between the von-K\\'arm\\'an slope $\\kappa $ and the turbulent velocity in the log-law region $v^+$ (in wall units): $v^+=6 \\kappa$. These predictions are in excellent agreement with DNS data and with recent laboratory experiments.

Victor S. L'vov; Anna Pomyalov; Itamar Procaccia; Sergej S. Zilitinkevich

2005-06-28T23:59:59.000Z

138

Equilibrium pricing bounds on option prices Marie Chazala  

E-Print Network (OSTI)

probability measure that is equivalent to the historical one, and under which the discounted price processesEquilibrium pricing bounds on option prices Marie Chazala and Ely`es Jouinib a CREST, France price at maturity, we derive an upper bound on the call option price by putting two kind of restrictions

Boyer, Edmond

139

MAXIMAL JORDAN ALGEBRAS OF MATRICES WITH BOUNDED NUMBER OF EIGENVALUES  

E-Print Network (OSTI)

1 MAXIMAL JORDAN ALGEBRAS OF MATRICES WITH BOUNDED NUMBER OF EIGENVALUES L. Grunenfelder, T. Kosir, M. Omladic, and H. Radjavi Abstract. We consider maximal Jordan algebras of matrices with bounded, and we also give a list of some reducible such algebras. We also study automorphisms of Jordan algebras

Ko?ir, Toma?

140

A Bound on Attacks on Payment Protocols Scott D. Stoller  

E-Print Network (OSTI)

hypothesis of our reduction is the bounded support restriction (BSR), which states that in every history (i.eA Bound on Attacks on Payment Protocols Scott D. Stoller Computer Science Dept., SUNY at Stony executed corresponding other actions (e.g., a payment gateway approves a charge to customer C's account

Stoller, Scott

Note: This page contains sample records for the topic "usf upward bound" 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.
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141

A Bound on Attacks on Payment Protocols Scott D. Stoller  

E-Print Network (OSTI)

hypothesis of our reduction is the bounded support restriction (BSR), which states that in every history (i.eA Bound on Attacks on Payment Protocols Scott D. Stoller Computer Science Dept., SUNY at Stony- ously executed corresponding other actions (e.g., a payment gateway approves a charge to customer C

Stoller, Scott

142

A useful strong lower bound on two-qubit concurrence  

Science Journals Connector (OSTI)

A new strong lower bound on concurrence for two-qubit states is derived. Its equality with the concurrence itself for the pure- and X-states is proved analytically; while extensive numerical computations show that equality for a general mixed state may ... Keywords: Concurrence, Entanglement, Localizable entanglement, Lower bound

Mojtaba Jafarpour; Abbass Sabour

2012-12-01T23:59:59.000Z

143

Complexity of Dependencies in Bounded Domains, Armstrong Codes, and Generalizations  

E-Print Network (OSTI)

Complexity of Dependencies in Bounded Domains, Armstrong Codes, and Generalizations Yeow Meng Chee University, Singapore email: {ymchee, huizhang, xiandezhang}@ntu.edu.sg Abstract--The study of Armstrong systems, where attributes have bounded domains. A (q, k, n)-Armstrong code is a q-ary code of length n

Chee, Yeow Meng

144

Energy bounds for some non-standard problems in thermoelasticity  

Science Journals Connector (OSTI)

...Society 8 April 2005 research-article Energy bounds for some...dissipation of energy is perhaps a more...parabolic-like abstract equation u t...decay bound for an energy function, and...non-uniqueness for the abstract wave equation...

2005-01-01T23:59:59.000Z

145

Bounds on the Energy Consumption of Computational Andrew Gearhart  

E-Print Network (OSTI)

Bounds on the Energy Consumption of Computational Kernels Andrew Gearhart Electrical Engineering Fall 2014 #12;Bounds on the Energy Consumption of Computational Kernels Copyright 2014 by Andrew Scott, little consideration was given to the potential energy efficiency of algorithms them- selves. A dominant

California at Berkeley, University of

146

Lower Bounds for Betti Numbers of Special Extensions  

E-Print Network (OSTI)

Lower Bounds for Betti Numbers of Special Extensions Melvin Hochster Benjamin Richert University 0 !M ! 0; where f#11; M 0 ; : : : ; #11; M n g are the Betti numbers of M . Giving lower bounds for these Betti numbers has been a long standing problem in commutative algebra. In fact, in 1977, Buchsbaum

Hochster, Melvin

147

Bounds on the electrical resistance between contacting elastic rough bodies  

Science Journals Connector (OSTI)

...conductance for the rough contact problem...be restricted to a set of microscopic `actual...comprises an in nite set of highly clustered...of indentation of a rough surface. These bounds...Consequences for fractal rough surfaces The bounds...comprises an in nite set of point contacts...

2003-01-01T23:59:59.000Z

148

Improvements on the Johnson bound for Reed-Solomon Codes  

E-Print Network (OSTI)

Improvements on the Johnson bound for Reed-Solomon Codes Muralidhara V N and Sandeep Sen Department Abstract For Reed-Solomon Codes with block length n and dimension k, the Johnson theorem states of the Johnson bound for list-decoding of Reed-Solomon Codes (even if the field size is exponential). More

Sen, Sandeep

149

Factorization law for two lower bounds of concurrence  

SciTech Connect

We study the dynamics of two lower bounds of concurrence in bipartite quantum systems when one party goes through an arbitrary channel. We show that these lower bounds obey the factorization law similar to that of [Konrad et al., Nat. Phys. 4, 99 (2008)]. We also discuss the application of this property in an example.

Mirafzali, Sayyed Yahya; Sargolzahi, Iman; Ahanj, Ali; Javidan, Kurosh; Sarbishaei, Mohsen [Department of Physics, Ferdowsi University of Mashhad, Mashhad (Iran, Islamic Republic of); Khayyam Institute of Higher Education, Mashhad, Iran and School of Physics, Institute for Research in Fundamental Science (IPM), P. O. Box 19395-5531, Tehran (Iran, Islamic Republic of); Department of Physics, Ferdowsi University of Mashhad, Mashhad (Iran, Islamic Republic of)

2010-09-15T23:59:59.000Z

150

Keep Your Enemies Close: Distance Bounding Against Smartcard Relay Attacks  

E-Print Network (OSTI)

Keep Your Enemies Close: Distance Bounding Against Smartcard Relay Attacks Saar Drimer and Steven J by an implementation of the relay attack that has been tested on live systems. Once designers appreciate the risk to the smartcard standard, based on a distance bounding protocol, which provides adequate resistance to the relay

Xu, Wenyuan

151

CURVATURE, DIAMETER AND BOUNDED BETTI NUMBERS Zhongmin Shen and Jyh-Yang Wu  

E-Print Network (OSTI)

CURVATURE, DIAMETER AND BOUNDED BETTI NUMBERS Zhongmin Shen and Jyh-Yang Wu Abstract. In this paper, we introduces the notion of bounded Betti numbers, and show that the bounded Betti numbers words: Diameter, Ricci curvature, sectional curvature, bounded cohomology and bounded Betti number 2000

Shen, Zhongmin

152

Baryonic Bound State of Vortices in Multicomponent Superconductors  

E-Print Network (OSTI)

We construct a bound state of three 1/3-quantized Josephson coupled vortices in three-component superconductors with intrinsic Josephson couplings, which may be relevant with regard to iron-based superconductors. We find a Y-shaped junction of three domain walls connecting the three vortices, resembling the baryonic bound state of three quarks in QCD. The appearance of the Y-junction (but not a Delta-junction) implies that in both cases of superconductors and QCD, the bound state is described by a genuine three-body interaction (but not by the sum of two-body interactions). We also discuss a confinement/deconfinement phase transition.

Muneto Nitta; Minoru Eto; Toshiaki Fujimori; Keisuke Ohashi

2010-11-11T23:59:59.000Z

153

Radiation entropy bound from the second law of thermodynamics  

E-Print Network (OSTI)

It has been suggested heuristically by Unruh and Wald, and independently by Page, that among systems with given energy and volume, thermal radiation has the largest entropy. The suggestion leads to the corresponding universal bound on entropy of physical systems. Using a gedanken experiment we show that the bound follows from the second law of thermodynamics if the CPT symmetry is assumed and a certain general condition on matter holds. The experiment suggests that a wide class of Lorentz invariant local quantum field theories obeys a bound on the density of states.

Itzhak Fouxon

2008-06-14T23:59:59.000Z

154

Costs for airborne telescope spiral upwards  

Science Journals Connector (OSTI)

... that peers out of a hole cut into the side of a 30-year-old Boeing 747 aeroplane (pictured). The partners in the project are NASA and the German ...

2009-04-08T23:59:59.000Z

155

Clopper-Pearson Bounds from HEP Data Cuts  

E-Print Network (OSTI)

For the measurement of $N_s$ signals in $N$ events rigorous confidence bounds on the true signal probability $p_{\\rm exact}$ were established in a classical paper by Clopper and Pearson [Biometrica 26, 404 (1934)]. Here, their bounds are generalized to the HEP situation where cuts on the data tag signals with probability $P_s$ and background data with likelihood $P_bbounds as well as bounds on the entire cumulative signal distribution function, is available on the web. In particular, the method is of interest in connection with the statistical analysis part of the ongoing Higgs search at the LEP experiments.

Bernd A. Berg

2000-10-24T23:59:59.000Z

156

Bound states in the physical QCD sub 2  

SciTech Connect

Different variants of the physical QCD{sub 2} are analyzed. The role of the chiral background field in the theory is stressed. A massive bound state creating operator in the massless physical QCD{sub 2} is constructed.

Saradzhev, F.M. (Dept. of Matter Structure, Faculty of Physics, Azerbaijan State Univ., Baku 602, Azerbaijan (SU))

1990-07-10T23:59:59.000Z

157

Structure of the Ebola Virus Glycoprotein Bound to an Antibody...  

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

Structure of the Ebola Virus Glycoprotein Bound to an Antibody from a Human Survivor Print Ebolavirus, one of two members of the family of filoviruses, causes a severe hemorrhagic...

158

New Lower Bounds on the Stability Number of a Graph  

E-Print Network (OSTI)

Jun 27, 2007 ... adjacency matrix of G. The complete graph on n vertices is denoted by Kn. ..... We used MATLAB to compute each of the five bounds on each of...

2007-06-27T23:59:59.000Z

159

Copositivity cuts for improving SDP bounds on the clique number ...  

E-Print Network (OSTI)

Adding cuts based on copositive matrices, we propose to improve. Lovsz' bound ? .... with AG the adjacency matrix of the complementary graph. Then the MCP ...... MATLAB, in Proceedings of the CACSD Conference, Taipei, Taiwan, 2004.

2008-11-13T23:59:59.000Z

160

Synthesis of Feedforward Networks in Supremum Error Bound  

E-Print Network (OSTI)

Synthesis of Feedforward Networks in Supremum Error Bound Krzysztof@c* *arbon.cudenver.edu #12;SYNTHESIS OF FEEDFORWARD NETWORKS and a linear output. This result is applied to formulate a new * *method of neural network synthesis

Ciesielski, Krzysztof Chris

Note: This page contains sample records for the topic "usf upward bound" 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

Bounds on relicneutrino masses in the Z-burst model  

Science Journals Connector (OSTI)

Neutrinosfrom far-away sources annihilating at the Z-resonance on relic neutrinos maygive origin to the extreme-energy cosmic rays (EECR). If Z-bursts are responsiblefor the EECR events, then we show that the nonobservation of cosmic ray eventsat energies above 21020??eV bythe AGASA Collaboration implies a lower bound ?0.3??eV onthe relic neutrino mass. Since this mass exceeds the mass-squared differencesinferred from oscillation physics, the bound in fact applies to all threeneutrino masses. Together with the upper bound provided by comparisons ofthe CMB anisotropy with large-scale structure, this bound leaves only a smallinterval for neutrino masses around 0.3eV, if Z-burstsare to explain the existing EECR events.

Graciela Gelmini; Gabriele Varieschi; Thomas Weiler

2004-12-03T23:59:59.000Z

162

Upper bound analysis for drag anchors in soft clay  

E-Print Network (OSTI)

This study presents an upper bound plastic limit analysis for predicting drag anchor trajectory and load capacity. The shank and fluke of the anchor are idealized as simple plates. The failure mechanism involves the motion of the anchor about a...

Kim, Byoung Min

2007-04-25T23:59:59.000Z

163

Lower bounds for the Chvtal-Gomory rank  

E-Print Network (OSTI)

bounds on the Chvtal-Gomory rank and develop a simpler method. We provide new families of polytopes in the 0/1 cube with high rank and we describe a...

Sebastian Pokutta, Gautier Stauffer

2011-03-16T23:59:59.000Z

164

Dipoles in Graphene Have Infinitely Many Bound States  

E-Print Network (OSTI)

We show that in graphene charge distributions with non-vanishing dipole moment have infinitely many bound states. The corresponding eigenvalues accumulate at the edges of the gap faster than any power.

Jean-Claude Cuenin; Heinz Siedentop

2014-03-27T23:59:59.000Z

165

BOUNDED PARALLELISM IN COMPUTER ALGEBRA Stephen Michael Watt  

E-Print Network (OSTI)

BOUNDED PARALLELISM IN COMPUTER ALGEBRA by Stephen Michael Watt A thesis presented in Computer Science Waterloo, Ontario, 1985 c S.M. Watt 1985 #12;Permission has been granted to the National

Watt, Stephen M.

166

Bound Neutrons Pave Way to Free Ones | Jefferson Lab  

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

neutron is that most neutrons are bound up inside the nucleus of atoms to protons. In nature, a free neutron lasts for only a few minutes, while in the nucleus, neutrons are...

167

Improved bounds for the symmetric rendezvous value on the line  

E-Print Network (OSTI)

?School of Engineering and Management, Nanjing University. This work was done while the ... Supported in part by NSERC grant 283103 and URF,. FDF at UNB. ...... computer memory limitation, we are able to find upper bounds only for n...

2006-09-30T23:59:59.000Z

168

Obtaining Lower Bounds from the Progressive Hedging Algorithm ...  

E-Print Network (OSTI)

Oct 11, 2013 ... Note that the non-anticipativity constraints (15) define a ..... Complicating constraints are incurred by generator ... Next, we consider the interaction between PHA lower bound quality and .... for assessing wind integration.

2014-01-21T23:59:59.000Z

169

Bounded Dataflow Networks and Latency-Insensitive Circuits  

E-Print Network (OSTI)

We present a theory for modular refinement of Synchronous Sequential Circuits (SSMs) using Bounded Dataflow Networks (BDNs). We provide a procedure for implementing any SSM into an LI-BDN, a special class of BDNs with some ...

Vijayaraghavan, Muralidaran

170

Improvable upper bounds to the piezoelectric polaron ground state energy  

E-Print Network (OSTI)

It was shown that an infinite sequence of improving non-increasing upper bounds to the ground state energy (GSE) of a slow-moving piezoeletric polaron can be devised.

A. V. Soldatov

2014-12-31T23:59:59.000Z

171

Lieb-Robinson Bounds in Quantum Many-Body Physics  

E-Print Network (OSTI)

We give an overview of recent results on Lieb-Robinson bounds and some of their applications in the study of quantum many-body models in condensed matter physics.

Bruno Nachtergaele; Robert Sims

2010-04-13T23:59:59.000Z

172

Practical Comprehensive Bounds on Surreptitious Communication Over DNS  

E-Print Network (OSTI)

Practical Comprehensive Bounds on Surreptitious Communication Over DNS Vern Paxson Mihai. As such, DNS provides a highly attractive channel for attackers who wish to communicate surreptitiously confirmed tunnels. For the enterprise datasets with lookups by individual clients, detecting surreptitious

Paxson, Vern

173

Metastability bounds on the two Higgs doublet model  

E-Print Network (OSTI)

In the two Higgs doublet model, there is the possibility that the vacuum where the universe resides in is metastable. We present the tree-level bounds on the scalar potential parameters which have to be obeyed to prevent that situation. Analytical expressions for those bounds are shown for the most used potential, that with a softly broken $Z_2$ symmetry. The impact of those bounds on the model's phenomenology is discussed in detail, as well as the importance of the current Large Hadron Collider results in determining whether the vacuum we live in is or is not stable. We demonstrate how the vacuum stability bounds can be obtained for the most generic CP-conserving potential, and provide a simple method to implement them.

A. Barroso; P. M. Ferreira; I. P. Ivanov; Rui Santos

2013-03-20T23:59:59.000Z

174

Bounding Heavy Meson Form Factors Using Inclusive Sum Rules  

E-Print Network (OSTI)

We utilize inclusive sum rules to construct both upper and lower bounds on the form factors for B to D, D*, rho, pi, omega, K and K* semi-leptonic and radiative decays. We include the leading nonperturbative 1/E corrections and point out cases when alpha_s corrections are equally important. We compute the alpha_s correction to the lower bound on the B to D* form factor f(w) at zero recoil, thereby constraining its normalization f(1) to within 6-8% of the upper bound. We show that the B to rho form factor a_+ is suppressed at small momentum transfer by either a factor of 1/E or alpha_s. These bounds can be used to rule out phenomenological models as well as to determine values for the CKM matrix elements once radiative corrections are included.

C. Glenn Boyd; Ira Z. Rothstein

1996-07-24T23:59:59.000Z

175

Bounds Analysis by Abstract Interpretation Xiaolei Qian Allen Goldberg  

E-Print Network (OSTI)

representations fo* *r these abstract types. In this work an abstract context, i.e. model, consists * Bounds Analysis by Abstract@csl.sri.com goldberg@kestrel.edu Abstract Abstract interpretation

Goldberg, Allen

176

RELATIVE RESIDUAL BOUNDS FOR INDEFINITE SINGULAR HERMITIAN MATRICES  

E-Print Network (OSTI)

residual bounds, indefinite Hermitian matrix, eigen- values, perturbation theory, relative perturbations. These theorems are proper generalization of results on a semi-definite Hermitian matrix SIAM Journal on Matrix

Truhar, Ninoslav

177

An upper bound for the proton temperature anisotrophy  

SciTech Connect

This tutorial describes recent research concerning the upper bound on the hot proton temperature anisotropy imposed by wave-particle scattering due to enhanced fluctuations from the electromagnetic proton cyclotron anisotropy instability. This upper bound, which has been observed in both the magnetosheath and the outer magnetosphere, represents a limited closure relation for the equations of anisotropic magnetohydrodynamics. Such a closure relation has the potential to improve the predictive capability of large-scale anisotropic models of the magnetosphere.

Gary, S.P.

1994-11-01T23:59:59.000Z

178

Phase Transitions and Bounds in Higgs-Boson Masses  

Science Journals Connector (OSTI)

Upper bounds on the critical temperature are found in terms of the Higgs-boson mass in SU(N) and SU(2) ? U(1) gauge theories. Also, an upper bound on the Higgs-boson mass as a function of the supercooling ratio is found, provided that quantum tunneling is not sufficient to complete the phase transition from a symmetric phase to a broken phase.

J. J. G. Scanio and P. Suranyi

1981-05-18T23:59:59.000Z

179

Bound on viscosity and the generalized second law of thermodynamics  

SciTech Connect

We describe a new paradox for ideal fluids. It arises in the accretion of an ideal fluid onto a black hole, where, under suitable boundary conditions, the flow can violate the generalized second law of thermodynamics. The paradox indicates that there is in fact a lower bound to the correlation length of any real fluid, the value of which is determined by the thermodynamic properties of that fluid. We observe that the universal bound on entropy, itself suggested by the generalized second law, puts a lower bound on the correlation length of any fluid in terms of its specific entropy. With the help of a new, efficient estimate for the viscosity of liquids, we argue that this also means that viscosity is bounded from below in a way reminiscent of the conjectured Kovtun-Son-Starinets lower bound on the ratio of viscosity to entropy density. We conclude that much light may be shed on the Kovtun-Son-Starinets bound by suitable arguments based on the generalized second law.

Fouxon, Itzhak; Betschart, Gerold; Bekenstein, Jacob D. [Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904 (Israel)

2008-01-15T23:59:59.000Z

180

Bound on viscosity and the generalized second law of thermodynamics  

Science Journals Connector (OSTI)

We describe a new paradox for ideal fluids. It arises in the accretion of an ideal fluid onto a black hole, where, under suitable boundary conditions, the flow can violate the generalized second law of thermodynamics. The paradox indicates that there is in fact a lower bound to the correlation length of any real fluid, the value of which is determined by the thermodynamic properties of that fluid. We observe that the universal bound on entropy, itself suggested by the generalized second law, puts a lower bound on the correlation length of any fluid in terms of its specific entropy. With the help of a new, efficient estimate for the viscosity of liquids, we argue that this also means that viscosity is bounded from below in a way reminiscent of the conjectured Kovtun-Son-Starinets lower bound on the ratio of viscosity to entropy density. We conclude that much light may be shed on the Kovtun-Son-Starinets bound by suitable arguments based on the generalized second law.

Itzhak Fouxon; Gerold Betschart; Jacob D. Bekenstein

2008-01-10T23:59:59.000Z

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


181

Energy stability bounds on convective heat transport: Numerical study  

SciTech Connect

The concept of nonlinear energy stability has recently been extended to deduce bounds on energy dissipation and transport in incompressible flows, even for turbulent flows. In this approach an effective stability condition on {open_quotes}background{close_quotes} flow or temperature profiles is derived, which when satisfied ensures that the profile produces a rigorous upper estimate to the bulk dissipation. Optimization of the test background profiles in search of the lowest upper bounds leads to nonlinear Euler-Lagrange equations for the extremal profile. In this paper, in the context of convective heat transport in the Boussinesq equations, we describe numerical solutions of the Euler-Lagrange equations for the optimal background temperature and present the numerical computation of the implied bounds. {copyright} {ital 1997} {ital The American Physical Society}

Doering, C.R. [Department of Mathematics, University of Michigan, Ann Arbor, Michigan 48109-1109 (United States)] [Department of Mathematics, University of Michigan, Ann Arbor, Michigan 48109-1109 (United States); Hyman, J.M. [Theoretical Division and Center for Nonlinear Studies, MS-B284, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Theoretical Division and Center for Nonlinear Studies, MS-B284, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

1997-06-01T23:59:59.000Z

182

Lower bounds to the spectral gap of Davies generators  

SciTech Connect

We construct lower bounds to the spectral gap of a family of Lindblad generators known as Davies maps. These maps describe the thermalization of quantum systems weakly coupled to a heat bath. The steady state of these systems is given by the Gibbs distribution with respect to the system Hamiltonian. The bounds can be evaluated explicitly, when the eigenbasis and the spectrum of the Hamiltonian is known. A crucial assumption is that the spectrum of the Hamiltonian is non-degenerate. Furthermore, we provide a counterexample to the conjecture, that the convergence rate is always determined by the gap of the associated Pauli master equation. We conclude that the full dynamics of the Lindblad generator has to be considered. Finally, we present several physical example systems for which the bound to the spectral gap is evaluated.

Temme, Kristan [Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)] [Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2013-12-15T23:59:59.000Z

183

Viscosity bound for anisotropic superfluids in higher derivative gravity  

E-Print Network (OSTI)

In the present paper, based on the principles of gauge/gravity duality we analytically compute the shear viscosity to entropy ratio corresponding to the superfluid phase in Einstein Gauss-Bonnet gravity. From our analysis we note that the ratio indeed receives a finite temperature correction below certain critical temperature. This proves the non universality of shear viscosity to entropy ratio in higher derivative theories of gravity. We also compute the upper bound for the Gauss-Bonnet coupling corresponding to the symmetry broken phase and note that the upper bound on the coupling does not seem to change as long as we are close to the critical point of the phase diagram. However the corresponding lower bound of the shear viscosity to entropy ratio seems to get modified due to the finite temperature effects.

Bhattacharyya, Arpan

2014-01-01T23:59:59.000Z

184

Viscosity bound for anisotropic superfluids in higher derivative gravity  

E-Print Network (OSTI)

In the present paper, based on the principles of gauge/gravity duality we analytically compute the shear viscosity to entropy ratio corresponding to the superfluid phase in Einstein Gauss-Bonnet gravity. From our analysis we note that the ratio indeed receives a finite temperature correction below certain critical temperature. This proves the non universality of shear viscosity to entropy ratio in higher derivative theories of gravity. We also compute the upper bound for the Gauss-Bonnet coupling corresponding to the symmetry broken phase and note that the upper bound on the coupling does not seem to change as long as we are close to the critical point of the phase diagram. However the corresponding lower bound of the shear viscosity to entropy ratio seems to get modified due to the finite temperature effects.

Arpan Bhattacharyya; Dibakar Roychowdhury

2014-10-13T23:59:59.000Z

185

Stable heteronuclear few-atom bound states in mixed dimensions  

SciTech Connect

We study few-body problems in mixed dimensions where two or three heavy atoms are trapped individually in parallel one-dimensional tubes or two-dimensional disks and a single light atom travels freely in three dimensions. Using the Born-Oppenheimer approximation, we find three- and four-body bound states for a broad parameter region. Specifically, the existence of trimer and tetramer states persists to the negative scattering length regime, where no two-body bound state is present. As pointed out by Y. Nishida in an earlier work [Phys. Rev. A 82, 011605(R) (2010)], these few-body bound states are stable against three-body recombination due to geometric separation. In addition, we find that the binding energy of the ground trimer and tetramer state reaches its maximum value when the scattering lengths are comparable to the separation between the low-dimensional traps.

Yin Tao; Zhang Peng; Zhang Wei [Department of Physics, Renmin University of China, Beijing 100872 (China)

2011-11-15T23:59:59.000Z

186

LHC Bounds on UV-Complete Models of Dark Matter  

E-Print Network (OSTI)

We analyze the sensitivity of searches for dark matter in the jets and missing energy channel in the case where the particle mediating interactions between hadronic matter and DM is collider accessible. We consider all tree level UV completions of interactions between fermion DM and quarks which contribute to direct detection, and derive bounds which apply to elastic or inelastic scattering dark matter explanations of direct detection signals. We find that studies based on effective operators give robust bounds when the mediator is heavy enough to resonantly produce the final state in question.

Jessica Goodman; William Shepherd

2011-11-09T23:59:59.000Z

187

Two-dimensional random walk in a bounded domain  

E-Print Network (OSTI)

In a recent Letter Ciftci and Cakmak [EPL 87, 60003 (2009)] showed that the two dimensional random walk in a bounded domain, where walkers which cross the boundary return to a base curve near origin with deterministic rules, can produce regular patterns. Our numerical calculations suggest that the cumulative probability distribution function of the returning walkers along the base curve is a Devil's staircase, which can be explained from the mapping of these walks to a non-linear stochastic map. The non-trivial probability distribution function(PDF) is a universal feature of CCRW characterized by the fractal dimension d=1.75(0) of the PDF bounding curve.

Mahashweta Basu; P. K. Mohanty

2009-10-30T23:59:59.000Z

188

Two-dimensional random walk in a bounded domain  

E-Print Network (OSTI)

In a recent Letter Ciftci and Cakmak [EPL 87, 60003 (2009)] showed that the two dimensional random walk in a bounded domain, where walkers which cross the boundary return to a base curve near origin with deterministic rules, can produce regular patterns. Our numerical calculations suggest that the cumulative probability distribution function of the returning walkers along the base curve is a Devil's staircase, which can be explained from the mapping of these walks to a non-linear stochastic map. The non-trivial probability distribution function(PDF) is a universal feature of CCRW characterized by the fractal dimension d=1.75(0) of the PDF bounding curve.

Basu, Mahashweta

2010-01-01T23:59:59.000Z

189

CSP duality and trees of bounded pathwidth Catarina Carvalhoa  

E-Print Network (OSTI)

CSP duality and trees of bounded pathwidth Catarina Carvalhoa , V´ictor Dalmaub , Andrei Krokhin problem (CSP) provides a framework in which it is possible to express, in a natural way, many.g., [10, 14]) that the CSP can be cast as the following fundamental problem: given two finite relational

Krokhin, Andrei

190

CSP duality and trees of bounded pathwidth Catarina Carvalhoa  

E-Print Network (OSTI)

CSP duality and trees of bounded pathwidth Catarina Carvalhoa , V´ictor Dalmaub , Andrei Krokhin satisfaction problem (CSP) provides a framework in which it is possible to express, in a natural way, many.g., [11, 18]) that the CSP can be cast as the following fundamental problem: given two finite relational

Krokhin, Andrei

191

Plasma ionization by annularly bounded helicon waves Masayuki Yanoa  

E-Print Network (OSTI)

Plasma ionization by annularly bounded helicon waves Masayuki Yanoa and Mitchell L. R. Walkerb and magnetic fields is derived with respect to the boundary conditions of a coaxial helicon plasma source by comparison with the standard cylindrical helicon plasma source. Further, a parametric study of source length

Walker, Mitchell

192

Variational bounds on energy dissipation in incompressible flows. III. Convection  

SciTech Connect

Building on a method of analysis for the Navier-Stokes equations introduced by Hopf [Math. Ann. {bold 117}, 764 (1941)], a variational principle for upper bounds on the largest possible time averaged convective heat flux is derived from the Boussinesq equations of motion. When supplied with appropriate test background fields satisfying a spectral constraint, reminiscent of an energy stability condition, the variational formulation produces rigorous upper bounds on the Nusselt number (Nu) as a function of the Rayleigh number (Ra). For the case of vertical heat convection between parallel plates in the absence of sidewalls, a simplified (but rigorous) formulation of the optimization problem yields the large Rayleigh number bound Nu{le}0.167 Ra{sup 1/2}{minus}1. Nonlinear Euler-Lagrange equations for the optimal background fields are also derived, which allow us to make contact with the upper bound theory of Howard [J. Fluid Mech. {bold 17}, 405 (1963)] for statistically stationary flows. The structure of solutions of the Euler-Lagrange equations are elucidated from the geometry of the variational constraints, which sheds light on Busse{close_quote}s [J. Fluid Mech. {bold 37}, 457 (1969)] asymptotic analysis of general solutions to Howard{close_quote}s Euler-Lagrange equations. The results of our analysis are discussed in the context of theory, recent experiments, and direct numerical simulations. {copyright} {ital 1996 The American Physical Society.}

Doering, C.R. [Center for Nonlinear Studies, MS-B258, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)] [Center for Nonlinear Studies, MS-B258, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States); Constantin, P. [Department of Mathematics, University of Chicago, Chicago, Illinois 60637 (United States)] [Department of Mathematics, University of Chicago, Chicago, Illinois 60637 (United States)

1996-06-01T23:59:59.000Z

193

Calculation of size for bound-state constituents  

E-Print Network (OSTI)

Elements are given of a calculation that identifies the size of a proton in the Schroedinger equation for lepton-proton bound states, using the renormalization group procedure for effective particles (RGPEP) in quantum field theory, executed only up to the second order of expansion in powers of the coupling constant. Already in this crude approximation, the extraction of size of a proton from bound-state observables is found to depend on the lepton mass, so that the smaller the lepton mass the larger the proton size extracted from the same observable bound-state energy splitting. In comparison of Hydrogen and muon-proton bound-state dynamics, the crude calculation suggests that the difference between extracted proton sizes in these two cases can be a few percent. Such values would match the order of magnitude of currently discussed proton-size differences in leptonic atoms. Calculations using the RGPEP of higher order than second are required for a precise interpretation of the energy splittings in terms of the proton size in the Schroedinger equation. Such calculations should resolve the conceptual discrepancy between two conditions: that the renormalization group scale required for high accuracy calculations based on the Schroedinger equation is much smaller than the proton mass (on the order of a root of the product of reduced and average masses of constituents) and that the energy splittings due to the physical proton size can be interpreted ignoring corrections due to the effective nature of constituents in the Schr\\"odinger equation.

Stanislaw D. Glazek

2014-06-01T23:59:59.000Z

194

Bounds for the Quadratic Assignment Problem Using the Bundle ...  

E-Print Network (OSTI)

Aug 27, 2003 ... START program Y43-MAT of the Austrian Ministry of Science is gratefully acknowledged. ...... T he implementation o f our bounds w as done in a ATLAB and per f ormed on a ..... H ahn, W . L . H ighto w er, T . A . J ohnson,Qa .

2003-08-27T23:59:59.000Z

195

Spent Nuclear Fuel (SNF) Bounding Drop Support Calculations  

SciTech Connect

This report evaluates different drop heights, concrete and other impact media to which the transport package and/or the MCO is dropped. A prediction method is derived for estimating the resultant impact factor for determining the bounding drop case for the SNF Project.

CHENAULT, D.M.

1999-11-16T23:59:59.000Z

196

Synthesis of Feedforward Networks in Supremum Error Bound  

E-Print Network (OSTI)

1 Synthesis of Feedforward Networks in Supremum Error Bound Krzysztof Ciesielski, Jaroslaw P. Sacha of Colorado at Denver, USA; e-mail: KCios@carbon.cudenver.edu #12;SYNTHESIS OF FEEDFORWARD NETWORKS 2 Abstract synthesis. The result can also be used to estimate complexity of the maximum-error network and

Ciesielski, Krzysztof Chris

197

Synthesis of Feedforward Networks in Supremum Error Bound  

E-Print Network (OSTI)

1 Synthesis of Feedforward Networks in Supremum Error Bound Krzysztof Ciesielski, Jarosl/aw P is with the University of Colorado at Denver, USA; e­mail: KCios@carbon.cudenver.edu #12; SYNTHESIS OF FEEDFORWARD network synthesis. The result can also be used to estimate complexity of the maximum­error network and

Ciesielski, Krzysztof Chris

198

Density functional theory for self-bound systems  

E-Print Network (OSTI)

The density functional theory is extended to account for self-bound systems. To this end the Hohenberg-Kohn theorem is formulated for the intrinsic density and a Kohn-Sham like procedure for an $N$--body system is derived using the adiabatic approximation to account for the center of mass motion.

Nir Barnea

2007-11-06T23:59:59.000Z

199

Bound states of the potential V(r)=-Z(r+?)  

Science Journals Connector (OSTI)

We have studied the bound states of the potential V(r)=-Z(r+?). The S-wave energy level E(?), as a function of the parameter ?, has a logarithmic singularity at the origin. The imaginary part of E(?) for ??0 goes as Z4+2l ?2+2l, where l is the angular momentum.

C. H. Mehta and S. H. Patil

1978-01-01T23:59:59.000Z

200

Verifying Time Bounds for General Function Pointers Robert Dockins1,  

E-Print Network (OSTI)

to a standard operational semantics. Our core technique is very compact and may be applicable to other resource in their semantic models (e.g., con- currency with first-class locks, self-modifying code) are often quite complex one is interested in concrete bounds rather than simple termination. We are unaware of any other logic

Hobor, Aquinas

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


201

Transportation System Risk Assessment (TSRA) bounding release model  

SciTech Connect

Transportation System Risk Assessments (TSRAs) document the compliance of proposed shipments of nuclear components with applicable federal regulations as well as the associated risks involved. If a relatively simple bounding analysis can show that the consequences resulting from a worst case scenario are acceptably low, a more time intensive and costly risk analysis can be avoided. Therefore, a bounding release FORTRAN model has been developed to determine the consequences of a worst case non-criticality transportation accident. The consequences of three conservative bounding accidents are determined by the model: (1) direct radiation exposure, (2) airborne release of radiological and/or hazardous solid material, and (3) release of radiological and/or hazardous solid material into a waterway and subsequent uptake by an individual through drinking water. Program output includes the direct radiation exposure (mrem), maximum downwind concentration (mg/m{sup 3}), radiation dose (mrem) received as a result of the postulated airborne release of radiological material, intake (mg) due to inhalation, radiation dose (mrem) received by an individual resulting from a release of radiological material into a waterway and uptake into drinking water, and uptake (mg) due to ingestion. This report documents the methodologies and correlations used in the numerical model to perform the bounding consequence calculations.

Anderson, J.C.

1997-10-01T23:59:59.000Z

202

Aptamer Directly Evolved from Live Cells Recognizes Membrane Bound Immunoglobin  

E-Print Network (OSTI)

. These include cell signaling, cell-cell interactions, ion/solute transport that facilitates the exchangeAptamer Directly Evolved from Live Cells Recognizes Membrane Bound Immunoglobin Heavy Mu Chain, and Weihong Tan The identification of tumor related cell membrane protein targets is important

Tan, Weihong

203

Remark on the coherent information saturating its upper bound  

E-Print Network (OSTI)

Coherent information is a useful concept in quantum information theory. It connects with other notions in data processing. In this short remark, we discuss the coherent information saturating its upper bound. A necessary and sufficient condition for this saturation is derived.

Lin Zhang

2012-08-25T23:59:59.000Z

204

BOUNDING THE GLOBAL WAR ON TERRORISM Jeffrey Record  

E-Print Network (OSTI)

BOUNDING THE GLOBAL WAR ON TERRORISM Jeffrey Record December 2003 #12;ii ***** The views expressed FOREWORD The United States is now in the third year of the global war on terrorism. That war began of Iraq. As part of the war on terrorism, the United States has committed not only to ridding the world

Kimbrough, Steven Orla

205

Results on Resource-Bounded Measure Harry Buhrman?1  

E-Print Network (OSTI)

Results on Resource-Bounded Measure Harry Buhrman?1 , and Stephen Fenner??2 , and Lance Fortnow???3-measure 0, or even p2-measure 0. ? URL: http://www.cwi.nl/cwi/people/Harry.Buhrman.html. E-mail: buhrman if it can be expressed as the di erence of two sets in NP. The notations R, Q, R+ and Q+ denote the real

Fortnow, Lance

206

In-medium antikaon interactions and bound states  

E-Print Network (OSTI)

Correct treatment of subthreshold Kbar-N dynamics is mandatory in kaonic-atom and Kbar-nuclear bound-state calculations, as demonstrated by using in-medium chirally-based models of Kbar-N interactions. Recent studies of kaonic-atom data reveal appreciable multi-nucleon contributions. Kbar-nuclear widths larger than 50 MeV are anticipated.

Avraham Gal; Eli Friedman; Nir Barnea; Ale Ciepl; Ji? Mare; Daniel Gazda

2014-11-05T23:59:59.000Z

207

ENERGY LEVEL SPECTROSCOPY OF A BOUND VORTEX-ANTIVORTEX PAIR  

E-Print Network (OSTI)

vortex- antivortex (VAV) state in an annular Josephson junction. The bound VAV pair is formed microwave spectroscopy. Keywords: Macroscopic quantum effects, long Josephson junctions, vortex­9]. Most of the studied systems, such as dc-biased Josephson junctions (JJ), supercon- ducting quantum

Wallraff, Andreas

208

In-medium antikaon interactions and bound states  

E-Print Network (OSTI)

Correct treatment of subthreshold Kbar-N dynamics is mandatory in kaonic-atom and Kbar-nuclear bound-state calculations, as demonstrated by using in-medium chirally-based models of Kbar-N interactions. Recent studies of kaonic-atom data reveal appreciable multi-nucleon contributions. Kbar-nuclear widths larger than 50 MeV are anticipated.

Gal, Avraham; Barnea, Nir; Ciepl, Ale; Mare, Ji?; Gazda, Daniel

2014-01-01T23:59:59.000Z

209

How Efficient Can We Be?: Bounds on Algorithm Energy Consumption  

E-Print Network (OSTI)

How Efficient Can We Be?: Bounds on Algorithm Energy Consumption Andrew Gearhart #12;Relation design use feedback to "cotune" compute kernel energy efficiency #12;Previous Work: Communication Lower-optimal" algorithms #12;Communication is energy inefficient! · On-chip/Off-chip gap isn't going to improve much Data

California at Irvine, University of

210

Packet Audio Playout Delay Adjustment: Performance Bounds and Algorithms \\Lambda  

E-Print Network (OSTI)

Packet Audio Playout Delay Adjustment: Performance Bounds and Algorithms \\Lambda Sue B. Moon, Jim 01003 fsbmoon,kurose,towsleyg@cs.umass.edu Abstract In packet audio applications, packets are buffered, given a trace of packet audio receptions at a receiver, we present efficient algorithms for computing

Massachusetts at Amherst, University of

211

On bounding the bandwidth of graphs with symmetry - Optimization ...  

E-Print Network (OSTI)

Hamming graph H(2,q) (also known as the lattice graph) has bandwidth equal to. (q+1)q. 2. ?1 .... 59. 10 3 120. 72. 75. 76. 90. Table 9: Bounds on the bandwidth of K(v,2) and K(v,3). v d meig .... Freeman, San Francisco, 1979. [19] Graham, A.

2013-08-08T23:59:59.000Z

212

Tighter quantum uncertainty relations follow from a general probabilistic bound  

E-Print Network (OSTI)

Uncertainty relations (URs) like the Heisenberg-Robertson or the time-energy UR are often considered to be hallmarks of quantum theory. Here, a simple derivation of these URs is presented based on a single classical inequality from estimation theory, a Cram\\'er-Rao-like bound. The Heisenberg-Robertson UR is then obtained by using the Born rule and the Schr\\"odinger equation. This allows a clear separtion of the probabilistic nature of quantum mechanics from the Hilbert space structure and the dynamical law. It also simplifies the interpretation of the bound. In addition, the Heisenberg-Robertson UR is tightened for mixed states by replacing one variance by the so-called quantum Fisher information. Thermal states of well-known Hamiltonians are shown to saturate the tighter bound for natural choices of the operators. Last, this bound establishes links to inequalities for spin-squeezing and multi-particle entanglement and leads to an entire class of inequalities for entanglement detection.

Florian Frwis; Nicolas Gisin

2014-09-15T23:59:59.000Z

213

National Science Bowl bound! | Princeton Plasma Physics Lab  

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

National Science Bowl bound! National Science Bowl bound! April 28, 2013 Congratulations to Princeton High School, of Princeton, NJ for ranking 14th place in the top 16 High School teams at the National Science Bowl from April 26-30, 2012. Gallery: Out of 69 high school teams from all 50 states, Puerto Rico and the U.S. Virgin Islands, the Princeton High School Science Team placed 14th in the top 16 High School teams at the National Science bowl!! Thanks to their efforts Princeton High School will receive $1000 towards the purchase of supplies for their Science Department! Kudos to Thomas Grover Middle School for making it to and for participating at finals... They competed like champs!!! See you next year!! You can learn more about the National Science Bowl here. To learn more about the NJ Regional Science Bowl competition visit our website.

214

Analytic description of dipole-bound anion photodetachment  

SciTech Connect

An analytical model for a dipole-bound anion (DBA) is proposed based on the exactly solvable three-dimensional Schroedinger equation for the excess electron bound by dipole potential of the parent neutral molecule (NM) in the Born-Oppenheimer approximation. The model gives reasonable analytical approximation for the dependence of the DBA binding energy on the NM dipole moment previously found numerically by many authors. The cross section of one-photon photodetachment of DBA is calculated in explicit analytical form. In the limit of high photon frequency, {omega}, the calculated cross-section displays {approx}{omega}{sup -2} behavior, which agrees perfectly with the experimental data [Bailey et al., J. Chem. Phys 104, 6976 (1996)]. At the threshold, the cross section demonstrates Gailitis-Damburg oscillations. Numerical dependence is provided for the maximal value of the cross section as a function of the NM dipole moment and the binding energy of the excess electron.

Chernov, V. E.; Dolgikh, A. V.; Zon, B. A. [Voronezh State University, 1 University Sq., Voronezh, 394006 (Russian Federation)

2005-11-15T23:59:59.000Z

215

Stochastic Ratchet Mechanisms for Replacement of Proteins Bound to DNA  

E-Print Network (OSTI)

Experiments indicate that unbinding rates of proteins from DNA can depend on the concentration of proteins in nearby solution. Here we present a theory of multi-step replacement of DNA-bound proteins by solution-phase proteins. For four different kinetic scenarios we calculate the depen- dence of protein unbinding and replacement rates on solution protein concentration. We find (1) strong effects of progressive 'rezipping' of the solution-phase protein onto DNA sites liberated by 'unzipping' of the originally bound protein; (2) that a model in which solution-phase proteins bind non-specifically to DNA can describe experiments on exchanges between the non specific DNA- binding proteins Fis-Fis and Fis-HU; (3) that a binding specific model describes experiments on the exchange of CueR proteins on specific binding sites.

Simona Cocco; John F. Marko; Remi Monasson

2014-05-26T23:59:59.000Z

216

Experimental bound on the charge radius of the electron neutrino  

Science Journals Connector (OSTI)

A limit on the electron-neutrino charge radius |r| is derived from a measurement of the weak-neutral-current vector coupling constant gV obtained in electron-neutrino electron elastic scattering. The 90%-confidence interval for gV is -0.177bound on the ?e charge radius, and is the same order of magnitude as bounds for ?? structure.

R. C. Allen; H. H. Chen; P. J. Doe; R. Hausammann; W. P. Lee; X. -Q. Lu; H. J. Mahler; M. E. Potter; K. C. Wang; T. J. Bowles; R. L. Burman; R. D. Carlini; D. R. F. Cochran; J. S. Frank; E. Piasetzky; V. D. Sandberg; D. A. Krakauer; R. L. Talaga

1991-01-01T23:59:59.000Z

217

Supernova Bounds on the Dark Photon Using its Electromagnetic Decay  

E-Print Network (OSTI)

The hypothetical massive dark photon ($\\gamma'$) which has kinetic mixing with the SM photon can decay electromagnetically to $e^+e^-$ pairs if its mass $m$ exceeds $2m_e$ and otherwise into three SM photons. These decays yield cosmological and supernovae associated signatures. We briefly discuss these signatures, particularly in connection with the supernova SN1987A and delineate the extra constraints that may then arise on the mass and mixing parameter of the dark photon. In particular, we find that for dark photon mass $m_{\\gamma'}$ in the 5-20 MeV range, arguments based on supernova 1987A observations lead to a bound on $\\epsilon$ which is about 300 times stronger than the presently existing bounds based on energy loss arguments.

Kazanas, Demos; Nussinov, Shmuel; Teplitz, Vic; Zhang, Yongchao

2014-01-01T23:59:59.000Z

218

Locatingdominating codes: Bounds and extremal cardinalities  

Science Journals Connector (OSTI)

Abstract In this work, two types of codes such that they both dominate and locate the vertices of a graph are studied. Those codes might be sets of detectors in a network or processors controlling a system whose set of responses should determine a malfunctioning processor or an intruder. Here, we present our contributions on ? -codes and ? -codes concerning bounds, extremal values and realization theorems.

Jos Cceres; Carmen Hernando; Merc Mora; Ignacio M. Pelayo; Mara Luz Puertas

2013-01-01T23:59:59.000Z

219

On L{sup 2}-functions with bounded spectrum  

SciTech Connect

We consider the class PW(R{sup n}) of functions in L{sup 2}(R{sup n}), whose Fourier transform has bounded support. We obtain a description of continuous maps {phi}:R{sup m}{yields}R{sup n} such that fo{phi} element of PW(R{sup m}) for every function f element of PW(R{sup n}). Only injective affine maps {phi} have this property. Bibliography: 5 titles.

Lebedev, Vladimir V [Moscow State Institute of Electronics and Mathematics (Technical University), Moscow (Russian Federation)] [Moscow State Institute of Electronics and Mathematics (Technical University), Moscow (Russian Federation)

2012-11-30T23:59:59.000Z

220

Mechanism for a bounded and discrete mass spectrum of fermions  

E-Print Network (OSTI)

A mechanism for determining fermion masses in four spacetime dimensions is presented, which uses a scalar-field domain wall extending in a fifth spacelike dimension and a special choice of Yukawa coupling constants. A bounded and discrete fermion mass spectrum is obtained, which depends on a combination of the Yukawa coupling constants and the parameters of the scalar potential. A similar mechanism for a finite mass spectrum may apply to $(1+1)$--dimensional fermions relevant to condensed matter physics.

Klinkhamer, F R

2014-01-01T23:59:59.000Z

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


221

Photo-production of Bound States with Hidden Charms  

E-Print Network (OSTI)

The photo-production of $J/\\Psi$-$^3He$ bound state ($[^3He]_{J/\\Psi}$) on a $^4He$ target has been investigated using the impulse approximation. The calculations have been performed using several $\\gamma+N \\rightarrow J/\\Psi +N$ models based on the Pomeron-exchange and accounting for the pion-exchange mechanism at low energies. The $J/\\Psi$ wavefunctions in $[^3He]_{J/\\Psi}$ are generated from various $J/\\Psi$-nucleus potentials which are constructed by either using a procedure based on the Pomeron-quark coupling mechanism or folding a $J/\\Psi$-N potential ($v_{J/\\Psi,N}$) into the nuclear densities. We consider $v_{J/\\Psi,N}$ derived from the effective field theory approach, Lattice QCD, and Pomeron-quark coupling mechanism. The upper bound of the predicted total cross sections is about $0.1 - 0.3$ pico-barn. We also consider the possibility of photo-production of a six quark-$J/\\Psi$ bound state ($[q^6]_{J/\\Psi})$ on the $^3He$ target. The Compound Bag Model of $NN$ scattering and the quark cluster model of nuclei are used to estimate the $[q^6]$-N wavefunction in $^3He$ by imposing the condition that the calculated $^3He$ charge form factor must be consistent with what is predicted by the conventional nuclear model. The upper bound of the predicted total cross sections of $\\gamma + ^3He \\rightarrow [q^6]_{J/\\Psi} +N$ is about 2 - 4 pico-barn, depending on the model of $\\gamma+N \\rightarrow J/\\Psi +N$ used in the calculations. Our results call for the need of precise measurements of $\\gamma+p \\rightarrow J/\\Psi +p$ and also the $\\gamma+^2H\\rightarrow J/\\Psi +n + p $ reactions near the threshold.

Jia-Jun Wu; T. -S. H. Lee

2012-10-22T23:59:59.000Z

222

STRUCTURE NOTE Conformational Variation of Calcium-Bound Troponin C  

E-Print Network (OSTI)

­156) helices. Each domain is filled with two Ca2 ions in the two helix-loop-helix calcium-binding motifsSTRUCTURE NOTE Conformational Variation of Calcium-Bound Troponin C Jayashree Soman,1 Terence Tao,2 of 2-Ca2 avian TnC2,3 and the NMR structure of calcium-saturated TnC,4 it is generally ac- cepted now

Phillips, George N. Jr.

223

Production of bound {$?^{+}?^{-}$}-systems in relativistic heavy ion collisions  

E-Print Network (OSTI)

Dimuonium (the bound system of two muons, $\\mu^+\\mu^-$-atom) has not been observed yet. In this paper we discuss the electromagnetic production of dimuonium at RHIC and LHC in relativistic heavy ion collisions. The production of parastates is analyzed in the equivalent photon approximation. For the treatment of orthostates, we develop a three photon formalism. We determine the production rates at RHIC and LHC with an accuracy of a few percent and discuss problems related to the observation of dimuonium.

I. F. Ginzburg; U. D. Jentschura; S. G. Karshenboim; F. Krauss; V. G. Serbo; G. Soff

1998-05-19T23:59:59.000Z

224

A NEW DEGREE BOUND FOR VECTOR INVARIANTS OF SYMMETRIC GROUPS  

E-Print Network (OSTI)

A NEW DEGREE BOUND FOR VECTOR INVARIANTS OF SYMMETRIC GROUPS P. FLEISCHMANN Abstract. Let R ) Ÿ n, provided that n! is invertible in R. This was used by E.Noether to prove fi(V; G) Ÿ jGj if j com­ mutative rings R and show equality for n = p s a prime power and R = Z or any ring with n \\Delta

Fleischmann, Peter

225

Precision Corrections to Dispersive Bounds on Form Factors  

E-Print Network (OSTI)

We present precision corrections to dispersion relation bounds on form factors in bottom hadron semileptonic decays and analyze their effects on parameterizations derived from these bounds. We incorporate QCD two-loop and nonperturbative corrections to the two-point correlator, consider form factors whose contribution to decay rates is suppressed by lepton mass, and implement more realistic estimates of truncation errors associated with the parameterizations. We include higher resonances in the hadronic sum that, together with heavy quark symmetry relations near zero recoil, further tighten the sum rule bounds. Utilizing all these improvements, we show that each of the six form factors in B --> D l nu and B --> D^* l nu can be described with 3% or smaller precision using only the overall normalization and one unknown parameter. A similar one-coefficient parameterization of one of the Lambda_b --> Lambda_c l nu form factors, together with heavy quark symmetry relations valid to order 1/m^2, describes the differential baryon decay rate in terms of one unknown parameter and the phenomenologically interesting quantity (\\bar Lambda)_Lambda \\approx M_{Lambda_b} - m_b. We discuss the validity of slope-curvature relations derived by Caprini and Neubert, and present weaker, corrected relations. Finally, we present sample fits of current experimental B --> D^*l nu and B --> D l nu data to the improved one-parameter expansion.

C. Glenn Boyd; Benjamin Grinstein; Richard F. Lebed

1997-05-07T23:59:59.000Z

226

E-Print Network 3.0 - actin-bound myosin heads Sample Search...  

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

Summary: of actin-bound myosin heads in spin-labeled myofibrils in the presence of the ATP analogs AMPPNP (5... -Si have demonstrated that actin-bound myosin heads are...

227

Utilization bound scheduling analysis for nonpreemptive uniprocessor architecture using UML-RT  

Science Journals Connector (OSTI)

The key for adopting the utilization-based schedulability test is to derive the utilization bound. Given the computation times, this paper proposes two utilization bound algorithms to derive interrelease times for nonpreemptive periodic tasks, using ...

S. Ewins Pon Pushpa, Manamalli Devasigamani

2014-01-01T23:59:59.000Z

228

Bounds for axially symmetric linear perturbations for the extreme Kerr black hole  

E-Print Network (OSTI)

We obtain remarkably simple integral bounds for axially symmetric linear perturbations for the extreme Kerr black hole in terms of conserved energies. From these estimates we deduce pointwise bounds for the perturbations outside the horizon.

Dain, Sergio

2015-01-01T23:59:59.000Z

229

BOUNDING THE EQUIVARIANT BETTI NUMBERS AND COMPUTING THE GENERALIZED EULER-POINCARE CHARACTERISTIC OF  

E-Print Network (OSTI)

BOUNDING THE EQUIVARIANT BETTI NUMBERS AND COMPUTING THE GENERALIZED EULER-POINCAR´E CHARACTERISTIC. The problem of obtaining tight bounds on the Betti numbers of semi-algebraic subsets of Rk in terms of bounding the equivariant Betti numbers of symmetric algebraic and semi- algebraic subsets of Rk . We obtain

Basu, Saugata

230

NESTED BOUNDS FOR THE CONSTRAINED SENSOR PLACEMENT PROBLEM Muhammad Uddin, Anthony Kuh and Aleksandar Kavcic  

E-Print Network (OSTI)

NESTED BOUNDS FOR THE CONSTRAINED SENSOR PLACEMENT PROBLEM Muhammad Uddin, Anthony Kuh solution is a fundamental task. In this paper we present a family of nested bounds using matrix pencils so- lutions. Thereby, we significantly extend our prior work in [8] by presenting nested bounds

Kavcic, Aleksandar

231

Fast concurrent array-based stacks, queues and deques using fetch-and-increment-bounded, fetch-and-decrement-bounded and store-on-twin synchronization primitives  

DOE Patents (OSTI)

Implementation primitives for concurrent array-based stacks, queues, double-ended queues (deques) and wrapped deques are provided. In one aspect, each element of the stack, queue, deque or wrapped deque data structure has its own ticket lock, allowing multiple threads to concurrently use multiple elements of the data structure and thus achieving high performance. In another aspect, new synchronization primitives FetchAndIncrementBounded (Counter, Bound) and FetchAndDecrementBounded (Counter, Bound) are implemented. These primitives can be implemented in hardware and thus promise a very fast throughput for queues, stacks and double-ended queues.

Chen, Dong; Gara, Alana; Heidelberger, Philip; Kumar, Sameer; Ohmacht, Martin; Steinmacher-Burow, Burkhard; Wisniewski, Robert

2014-09-16T23:59:59.000Z

232

Studies on the bound-state spectrum of hyperbolic potential  

E-Print Network (OSTI)

Bound states of hyperbolic potential is investigated by means of a generalized pseudospectral method. Significantly improved eigenvalues, eigenfunctions are obtained efficiently for arbitrary $n, \\ell$ quantum states by solving the relevant non-relativistic Schr\\"odinger equation allowing a non-uniform, optimal spatial discretization. Eigenvalues accurate up to tenth decimal place are reported for a large range of potential parameters; thus covering a wide range of interaction. Excellent agreement with available literature results is observed in all occasions. Special attention is paid for higher states. Some new states are given. Energy variations with respect to parameters in the potential are studied in considerable detail for the first time.

Amlan K. Roy

2014-09-08T23:59:59.000Z

233

Groups generated by bounded automata and their schreier graphs  

E-Print Network (OSTI)

on levels of automaton groups can be constructed by an iterative procedure of inflation of graphs. This was used to associate a piecewise linear map of the form fK(v) = minA?KAv, where K is a finite set of nonnegative matrices, with every bounded automaton... and minimal growth of the components of f(n)K (v). We prove that the growth exponent of diameters of the Schreier graphs is equal to ?max and the orbital contracting coefficient of the group is equal to 1? min . We prove that the simple random walks on orbital...

Bondarenko, Ievgen

2008-10-10T23:59:59.000Z

234

Release of Fuel-Bound Nitrogen during Biomass Gasification  

Science Journals Connector (OSTI)

Gasification of four biomass feedstocks (leucaena, sawdust, bagasse, and banagrass) with significantly different fuel-bound nitrogen (FBN) content was investigated to determine the effects of operational parameters and nitrogen content of biomass on the partitioning of FBN among nitrogenous gas species. ... The present study attempts to clarify the effects of gasification conditions and fuel on the release and evolution of biomass FBN through parallel experiments utilizing four different biomass feedstocks having significantly different FBN contents. ... Four types of biomass feedstocks were used in the experimentsleucaena, sawdust, bagasse, and banagrass. ...

Jiachun Zhou; Stephen M. Masutani; Darren M. Ishimura; Scott Q. Turn; Charles M. Kinoshita

2000-01-29T23:59:59.000Z

235

Distillation protocols that involve local distinguishing: Composing upper and lower bounds on locally accessible information  

SciTech Connect

We find a universal lower bound on locally accessible information for arbitrary bipartite quantum ensembles, when one of the parties is two dimensional. In higher dimensions and in a higher number of parties, the bound is on accessible information by separable operations. We show that for any given density matrix (of an arbitrary number of parties and dimensions), there exists an ensemble, which averages to the given density matrix and whose locally accessible information saturates the lower bound. Moreover, we give a general method to obtain bounds on the yield of singlets in distillation protocols that involves local distinguishing, by using lower and upper bounds on locally accessible information. We then illustrate it by using our lower bound, along with a previously obtained upper bound, on locally accessible information.

Sen, Aditi; Sen, Ujjwal [ICFO-Institut de Ciencies Fotoniques, 08860 Castelldefels (Barcelona) (Spain); Institut fuer Theoretische Physik, Universitaet Hannover, D-30167 Hannover (Germany); Lewenstein, Maciej [Institut fuer Theoretische Physik, Universitaet Hannover, D-30167 Hannover (Germany); ICREA and ICFO-Institut de Ciencies Fotoniques, 08860 Castelldefels (Barcelona) (Spain)

2006-11-15T23:59:59.000Z

236

Bounds to binding energies from the concavity of thermodynamical functions  

E-Print Network (OSTI)

Sequences of experimental ground-state energies are mapped onto concave patterns cured from convexities due to pairing and/or shell effects. The same patterns, completed by a list of excitation energies, can be used to give numerical estimates of the grand potential $\\Omega(\\beta,\\mu)$ for a mixture of nuclei at low or moderate temperatures $T=\\beta^{-1}$ and at many chemical potentials $\\mu.$ The average nucleon number $(\\beta,\\mu)$ then becomes a continuous variable, allowing extrapolations towards nuclear masses closer to drip lines. We study the possible concavity of several thermodynamical functions, such as the free energy and the average energy, as functions of $.$ Concavity, when present in such functions, allows trivial interpolations and extrapolations providing upper and lower bounds, respectively, to binding energies. Such bounds define an error bar for the prediction of binding energies. An extrapolation scheme for such concave functions is tested. We conclude with numerical estimates of the binding energies of a few nuclei closer to drip lines.

B. K. Jennings; B. R. Barrett; B. G. Giraud

2007-08-22T23:59:59.000Z

237

On the dimension of subspaces with bounded Schmidt rank  

E-Print Network (OSTI)

We consider the question of how large a subspace of a given bipartite quantum system can be when the subspace contains only highly entangled states. This is motivated in part by results of Hayden et al., which show that in large d x d--dimensional systems there exist random subspaces of dimension almost d^2, all of whose states have entropy of entanglement at least log d - O(1). It is also related to results due to Parthasarathy on the dimension of completely entangled subspaces, which have connections with the construction of unextendible product bases. Here we take as entanglement measure the Schmidt rank, and determine, for every pair of local dimensions dA and dB, and every r, the largest dimension of a subspace consisting only of entangled states of Schmidt rank r or larger. This exact answer is a significant improvement on the best bounds that can be obtained using random subspace techniques. We also determine the converse: the largest dimension of a subspace with an upper bound on the Schmidt rank. Finally, we discuss the question of subspaces containing only states with Schmidt equal to r.

T. S. Cubitt; A. Montanaro; A. Winter

2007-06-05T23:59:59.000Z

238

Evaluating risk using bounding calculations and limited data  

SciTech Connect

This paper describes a methodology for estimating the potential risk to workers and the public from igniting organic solvents in any of the 177 underground waste storage tanks at the Hanford Site in southeastern Washington state. The Hanford Site is one of the U.S. Department of Energy's former production facilities for nuclear materials. The tanks contain mixed radioactive wastes. Risk is measured by calculating toxicological and radiological accident consequences and frequencies and comparing the results to established regulatory guidelines. Available sample data is insufficient to adequately characterize the waste and solvent, so a model that maximizes releases from the tanks (bounding case) is used. Maximizing releases (and thus consequences) is a standard technique used in safety analysis to compensate for lack of information. The model predicts bounding values of fire duration, the time at which the fire extinguishes because of lack of oxygen, and a pressure history of a fire in a tank. The model output is used to calculate mass and volume release rates of material from the tanks. The mass and volume release rates permit calculation of radiological and toxicological consequences. The resulting consequence calculations demonstrate that risk from an organic solvent fire in the tanks is within regulatory guidelines.

COWLEY, W.L.

1999-05-27T23:59:59.000Z

239

K{sup -}pp bound states from Skyrmions  

SciTech Connect

The bound kaon approach to the strangeness in the Skyrme model is applied to investigating the possibility of deeply bound K{sup -}pp states. We describe the K{sup -}pp system as two Skyrmion, around which a kaon field fluctuates. Each Skyrmion is rotated in the space of SU(2) collective coordinate. The rotational motions are quantized to be projected onto the spin-singlet proton-proton state. We derive the equation of motion for the kaon in the background field of two Skyrmions at fixed positions. From the numerical solution of the equation of motion, it is found that the energy of K{sup -} can be considerably small and that the distribution of K{sup -} shows molecular nature of the K{sup -}pp system. For this deep binding, the Wess-Zumino-Witten term plays an important role. The total energy of the K{sup -}pp system is estimated in the Born-Oppenheimer approximation. The binding energy of the K{sup -}pp state is B.E. {approx_equal}126 MeV. The mean square radius of the pp subsystem is {radical}(){approx_equal}1.6 fm.

Nishikawa, Tetsuo; Kondo, Yoshihiko [Department of Physics, Tokyo Institute of Technology, 2-12-1, Oh-Okayama, Meguro, Tokyo 152-8551 (Japan); Kokugakuin University, Higashi, Shibuya, Tokyo 150-8440 (Japan)

2008-05-15T23:59:59.000Z

240

The optimal bound of quantum erasure with limited means  

E-Print Network (OSTI)

In practical applications of quantum information science, quantum systems can have non-negligible interactions with the environment, and this generally degrades the power of quantum protocols as it introduces noise. Counteracting this by appropriately measuring the environment (and therefore projecting its state) would require access all the necessary degrees of freedom, which in practice can be far too hard to achieve. To better understand one's limitations, we calculate the upper bound of optimal quantum erasure (i.e. the highest recoverable visibility, or "coherence"), when erasure is realistically limited to an accessible subspace of the whole environment. In the particular case of a two-dimensional accessible environment, the bound is given by the sub-fidelity of two particular states of the \\emph{inaccessible} environment, which opens a new window into understanding the connection between correlated systems. We also provide an analytical solution for a three-dimensional accessible environment. This result provides also an interesting operational interpretation of sub-fidelity. We end with a statistical analysis of the expected visibility of an optimally erased random state and we find that 1) if one picks a random pure state of 2 qubits, there is an optimal measurement that allows one to distill a 1-qubit state with almost 90\\% visibility and 2) if one picks a random pure state of 2 qubits in an inaccessible environment, there is an optimal measurement that allows one to distill a 1-qubit state with almost twice its initial visibility.

Filippo M. Miatto; Kevin Pich; Thomas Brougham; Robert W. Boyd

2014-10-08T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

Bounding isotropic Lorentz violation using synchrotron losses at LEP  

Science Journals Connector (OSTI)

Some deviations from special relativityespecially isotropic effectsare most efficiently constrained using particles with velocities very close to 1. While there are extremely tight bounds on some of the relevant parameters coming from astrophysical observations, many of these rely on our having an accurate understanding of the dynamics of these high-energy sources. It is desirable to have reliable laboratory constraints on these same parameters. The fastest-moving particles in a laboratory were electrons and positrons at LEP. The energetics of the LEP beams were extremely well understood, and measurements of the synchrotron emission rate indicate that the isotropic Lorentz violation coefficient |?tr-43c00| must be smaller than 510-15.

Brett Altschul

2009-11-10T23:59:59.000Z

242

Randomized Algorithms and Lower Bounds for Quantum Simulation  

E-Print Network (OSTI)

We consider deterministic and {\\em randomized} quantum algorithms simulating $e^{-iHt}$ by a product of unitary operators $e^{-iA_jt_j}$, $j=1,...,N$, where $A_j\\in\\{H_1,...,H_m\\}$, $H=\\sum_{i=1}^m H_i$ and $t_j > 0$ for every $j$. Randomized algorithms are algorithms approximating the final state of the system by a mixed quantum state. First, we provide a scheme to bound the trace distance of the final quantum states of randomized algorithms. Then, we show some randomized algorithms, which have the same efficiency as certain deterministic algorithms, but are less complicated than their opponentes. Moreover, we prove that both deterministic and randomized algorithms simulating $e^{-iHt}$ with error $\\e$ at least have $\\Omega(t^{3/2}\\e^{-1/2})$ exponentials.

Chi Zhang

2009-10-21T23:59:59.000Z

243

Bound States and Scattering Resonances Induced by Spatially Modulated Interactions  

Science Journals Connector (OSTI)

We study the two-body problem with a spatially modulated interaction potential using a two-channel model, in which the interchannel coupling is provided by an optical standing wave and its strength modulates periodically in space. As the modulation amplitudes increase, there will appear a sequence of bound states. Part of them will cause a divergence of the effective scattering length, defined through the phase shift in the asymptotic behavior of scattering states. We also discuss how the local scattering length, defined through short-range behavior of scattering states, modulates spatially in different regimes. These results provide a theoretical guideline for a new control technique in the cold atom toolbox, in particular, for alkaline-earth(-like) atoms where the inelastic loss is small.

Ran Qi and Hui Zhai

2011-04-20T23:59:59.000Z

244

Relaxing the bounds on primordial magnetic seed fields  

Science Journals Connector (OSTI)

We point out that the lower bound on the primordial magnetic field required to seed the galactic dynamo is significantly relaxed in an open universe or in a universe with a positive cosmological constant. In such universes, the increased age of galaxies gives a dynamo mechanism more time to amplify a small initial field. It is shown that, for reasonable cosmological parameters, primordial seed fields of strength 10-30 G or less at the time of galaxy formation could explain observed galactic magnetic fields. As a consequence, mechanisms of primordial magnetic seed-field generation that have previously been ruled out could well be viable. We also comment on the implications of the observation of micro-Gauss magnetic fields in galaxies at high redshift.

Anne-Christine Davis; Matthew Lilley; Ola Trnkvist

1999-06-23T23:59:59.000Z

245

Computational analysis of plasmepsin IV bound to an allophenylnorstatine inhibitor  

Science Journals Connector (OSTI)

The plasmepsin proteases from the malaria parasite Plasmodium falciparum are attracting attention as putative drug targets. A recently published crystal structure of Plasmodium malariae plasmepsin IV bound to an allophenylnorstatine inhibitor [Clemente, J.C. et al. (2006) Acta Crystallogr. D 62, 246252] provides the first structural insights regarding interactions of this family of inhibitors with plasmepsins. The compounds in this class are potent inhibitors of HIV-1 protease, but also show nM binding affinities towards plasmepsin IV. Here, we utilize automated docking, molecular dynamics and binding free energy calculations with the linear interaction energy LIE method to investigate the binding of allophenylnorstatine inhibitors to plasmepsin IV from two different species. The calculations yield excellent agreement with experimental binding data and provide new information regarding protonation states of active site residues as well as conformational properties of the inhibitor complexes.

Hugo Gutirrez-de-Tern; Martin Nervall; Ben M. Dunn; Jose C. Clemente; Johan qvist

2006-01-01T23:59:59.000Z

246

Propagation of dust-acoustic waves in a bounded dusty plasma  

Science Journals Connector (OSTI)

The linear and nonlinear propagation of dust-acoustic waves in a dusty plasma bounded in finite geometry has been theoretically investigated. It is found that the finite geometry of the bounded plasma makes a significant contribution to the instability of the wave. Moreover, the pseudopotential has a positive and inverted profile that prevents the trapping of particles and does not favor solitary waves in bounded dusty plasma.

Kalyan Kr. Mondal; A. Roychowdhury; S. N. Paul

2001-12-14T23:59:59.000Z

247

A Case Study in Complexity Estimation: Towards Parallel BranchandBound over Graphical Models  

E-Print Network (OSTI)

using extra memory. Mini-bucket heuristic solves relaxed problem to yield upper bounds on subproblem. context size minus mini bucket i-bound 0.19 16 Ratio of leaf nodes in probe 0.18 10 Subproblem upper bound-3730 3-4 28-37 73-108 grid 5 624-675 2 37-39 111-124 log N (n)= ii (n) Algorithm: Computing

Dechter, Rina

248

Bounds on long-baseline ?e??e and ?(-)???(-)e transition probabilities  

Science Journals Connector (OSTI)

We discuss long-baseline neutrino oscillations in the framework of the two 4-neutrino schemes which can accommodate all existing neutrino oscillation data. Negative results of short-baseline reactor and accelerator experiments allow us to obtain rather strong bounds on the long-baseline ?e??e and ?(-)???(-)e transition probabilities. We consider in detail matter effects and show that the vacuum bounds are not substantially modified. We also comment on corresponding bounds in 3-neutrino scenarios.

S. M. Bilenky; C. Giunti; W. Grimus

1998-02-01T23:59:59.000Z

249

Worstcase time bounds for MAXkSAT w.r.t. the number of variables  

E-Print Network (OSTI)

Worst­case time bounds for MAX­k­SAT w.r.t. the number of variables using local search #3; EDWARD A­trivial upper bounds w.r.t. the number of variables were known for MAX­SAT and MAX­2­SAT. An a for the exact solution of MAX­k­SAT / MAX­SAT. However, the exponential­time bounds obtained in this way are w.r

Hirsch, Edward A.

250

On the Electric Dipole Polarizability of the Three-Hadron Bound System  

E-Print Network (OSTI)

A simple analytical expression for the electric dipole polarizability of the three-hadron bound system having only one stable bound state has been derived neglecting by the higher orbital components of the off-shell three-body transition matrix at the energy of the bound state. As a case in point, we have estimated the electric dipole polarizability of the triton, using a cluster triton wave function and the Hulthen potential to describe the related p-n and n-d bound states.

V. F. Kharchenko; A. V. Kharchenko

2010-03-30T23:59:59.000Z

251

E-Print Network 3.0 - analyses bounding environmental Sample...  

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

points for reducing... provides the inputs and outputs of a bounded system, whereas LCA attempts to quantify the environmental... 18 BioProcess International April 2009...

252

Lower bound on concurrence and distillation for arbitrary-dimensional bipartite quantum states  

SciTech Connect

We present a lower bound of concurrence for arbitrary-dimensional bipartite quantum states. This lower bound may be used to improve all the known lower bounds of concurrence. Moreover, the lower bound gives rise to an operational sufficient criterion of distillability of quantum entanglement. The significance of our result is illustrated by quantitative evaluation of entanglement for entangled states that fail to be identified by the usual concurrence estimation method and by showing the distillability of mixed states that cannot be recognized by other distillability criteria.

Zhao, Ming-Jing; Li-Jost, Xianqing [Max Planck Institute for Mathematics in the Sciences, D-04103 Leipzig (Germany); Zhu, Xue-Na [Department of Mathematics, School of Science, South China University of Technology, Guangzhou 510640 (China); Fei, Shao-Ming [Max Planck Institute for Mathematics in the Sciences, D-04103 Leipzig (Germany); School of Mathematical Sciences, Capital Normal University, Beijing 100048 (China)

2011-12-15T23:59:59.000Z

253

E-Print Network 3.0 - andreev bound states Sample Search Results  

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

the role of Andreev bound states and the quasiparticle continuum in the transition to a junction... the dynamics of a two-level ... Source: Ecole Polytechnique, Centre de...

254

Different Bounds on the Different Betti Numbers of Semi-algebraic Sets  

E-Print Network (OSTI)

nerve lemma does not apply, and there is no a priori bound on the Betti ...... and M. Sharir, Arrangements and their applications, in Handbook of Computational.

joe@diskserver.castanet.com Joe Pickert

2003-05-13T23:59:59.000Z

255

Yttrium Dopants in Titania: not Structurally Incorporated but Bound at  

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

Yttrium Dopants in Titania: not Structurally Yttrium Dopants in Titania: not Structurally Incorporated but Bound at Surfaces Structurally incorporated impurities have been shown to have systematic effects on the rate of the thermally driven transformation in titania nanoparticles [1-4]. The anatase-to-rutile transformation is slowed when anatase nanoparticles are doped with a cation of valence > +4, but favored when the valence < +4. Based on these observations, Y3+ dopants should promote the anatase-to-rutile transformation. However, prior studies showed that the transformation is inhibited by Y3+ impurities [1,2], without explaining this observation. In a study led by the scientists of University of California Berkeley and Lawrence Berkeley National Laboratory, extended x-ray absorption fine structure (EXAFS) experiments on yttrium-doped titania nanoparticles were conducted for determining the local structural environment of Y3+ impurities. The experiments were developed in collaboration with SSRL beamline scientists at BLs 10-2 and 11-2.

256

Randomized discrepancy bounded local search for transmission expansion planning  

SciTech Connect

In recent years the transmission network expansion planning problem (TNEP) has become increasingly complex. As the TNEP is a non-linear and non-convex optimization problem, researchers have traditionally focused on approximate models of power flows to solve the TNEP. Existing approaches are often tightly coupled to the approximation choice. Until recently these approximations have produced results that are straight-forward to adapt to the more complex (real) problem. However, the power grid is evolving towards a state where the adaptations are no longer easy (e.g. large amounts of limited control, renewable generation) and necessitates new approaches. Recent work on deterministic Discrepancy Bounded Local Search (DBLS) has shown it to be quite effective in addressing this question. DBLS encapsulates the complexity of power flow modeling in a black box that may be queried for information about the quality of proposed expansions. In this paper, we propose a randomization strategy that builds on DBLS and dramatically increases the computational efficiency of the algorithm.

Bent, Russell W [Los Alamos National Laboratory; Daniel, William B [Los Alamos National Laboratory

2010-11-23T23:59:59.000Z

257

Bound states of Dirac particles in gravitational fields  

SciTech Connect

We investigate the quantum motion of a neutral Dirac particle bouncing on a mirror in curved spacetime. We consider different geometries: Rindler, Kasner-Taub, and Schwarzschild, and show how to solve the Dirac equation by using geometrical methods. We discuss, in a first-quantized framework, the implementation of appropriate boundary conditions. This leads us to consider a Robin boundary condition that gives the quantization of the energy, the existence of bound states and of critical heights at which the Dirac particle bounces, extending the well-known results established from the Schroedinger equation. We also allow for a nonminimal coupling to a weak magnetic field. The problem is solved in an analytical way on the Rindler spacetime. In the other cases, we compute the energy spectrum up to the first relativistic corrections, exhibiting the contributions brought by both the geometry and the spin. These calculations are done in two different ways. On the one hand, using a relativistic expansion and, on the other hand, with Foldy-Wouthuysen transformations. Contrary to what is sometimes claimed in the literature, both methods are in agreement, as expected. Finally, we make contact with the GRANIT experiment. Relativistic effects and effects that go beyond the equivalence principle escape the sensitivity of such an experiment. However, we show that the influence of a weak magnetic field could lead to observable phenomena.

Boulanger, Nicolas; Spindel, Philippe; Buisseret, Fabien [Service de Mecanique et Gravitation, Universite de Mons-Hainaut, Academie universitaire Wallonie-Bruxelles, Place du Parc 20, BE-7000 Mons (Belgium); Groupe de Physique Nucleaire Theorique, Universite de Mons-Hainaut, Academie universitaire Wallonie-Bruxelles, Place du Parc 20, BE-7000 Mons (Belgium)

2006-12-15T23:59:59.000Z

258

Radio recombination lines from the largest bound atoms in space  

E-Print Network (OSTI)

In this paper, we report the detection of a series of radio recombination lines (RRLs) in absorption near 26 MHz arising from the largest bound carbon atoms detected in space. These atoms, which are more than a million times larger than the ground state atoms are undergoing delta transitions (n~1009, Delta n=4) in the cool tenuous medium located in the Perseus arm in front of the supernova remnant, Cassiopeia A. Theoretical estimates had shown that atoms which recombined in tenuous media are stable up to quantum levels n~1500. Our data indicates that we have detected radiation from atoms in states very close to this theoretical limit. We also report high signal-to-noise detections of alpha, beta and gamma transitions in carbon atoms arising in the same clouds. In these data, we find that the increase in line widths with quantum number (proportional to n^5) due to pressure and radiation broadening of lines is much gentler than expected from existing models which assume a power law background radiation field. This discrepancy had also been noted earlier. The model line widths had been overestimated since the turnover in radiation field of Cassiopeia A at low frequencies had been ignored. In this paper, we show that, once the spectral turnover is included in the modeling, the slower increase in line width with quantum number is naturally explained.

S. V. Stepkin; A. A. Konovalenko; N. G. Kantharia; N. Udaya Shankar

2006-10-13T23:59:59.000Z

259

Topological modes bound to dislocations in mechanical metamaterials  

E-Print Network (OSTI)

Mechanical metamaterials are artificial structures with unusual properties, such as negative Poisson ratio, bistability or tunable vibrational properties, that originate in the geometry of their unit cell. At the heart of such unusual behaviour is often a soft mode: a motion that does not significantly stretch or compress the links between constituent elements. When activated by motors or external fields, soft modes become the building blocks of robots and smart materials. Here, we demonstrate the existence of topological soft modes that can be positioned at desired locations in a metamaterial while being robust against a wide range of structural deformations or changes in material parameters. These protected modes, localized at dislocations, are the mechanical analogue of topological states bound to defects in electronic systems. We create physical realizations of the topological modes in prototypes of kagome lattices built out of rigid triangular plates. We show mathematically that they originate from the interplay between two Berry phases: the Burgers vector of the dislocation and the topological polarization of the lattice. Our work paves the way towards engineering topologically protected nano-mechanical structures for molecular robotics or information storage and read-out.

Jayson Paulose; Bryan Gin-ge Chen; Vincenzo Vitelli

2014-06-12T23:59:59.000Z

260

On bound states of Dirac particles in gravitational fields  

E-Print Network (OSTI)

We investigate the quantum motion of a neutral Dirac particle bouncing on a mirror in curved spacetime. We consider different geometries: Rindler, Kasner-Taub and Schwarzschild, and show how to solve the Dirac equation by using geometrical methods. We discuss, in a first-quantized framework, the implementation of appropriate boundary conditions. This leads us to consider a Robin boundary condition that gives the quantization of the energy, the existence of bound states and of critical heights at which the Dirac particle bounces, extending the well-known results established from the Schrodinger equation. We also allow for a nonminimal coupling to a weak magnetic field. The problem is solved in an analytical way on the Rindler spacetime. In the other cases, we compute the energy spectrum up to the first relativistic corrections, exhibiting the contributions brought by both the geometry and the spin. These calculations are done in two different ways. On the one hand, using a relativistic expansion and, on the ot...

Boulanger, N; Spindel, P; Boulanger, Nicolas; Buisseret, Fabien; Spindel, Philippe

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

On bound states of Dirac particles in gravitational fields  

E-Print Network (OSTI)

We investigate the quantum motion of a neutral Dirac particle bouncing on a mirror in curved spacetime. We consider different geometries: Rindler, Kasner-Taub and Schwarzschild, and show how to solve the Dirac equation by using geometrical methods. We discuss, in a first-quantized framework, the implementation of appropriate boundary conditions. This leads us to consider a Robin boundary condition that gives the quantization of the energy, the existence of bound states and of critical heights at which the Dirac particle bounces, extending the well-known results established from the Schrodinger equation. We also allow for a nonminimal coupling to a weak magnetic field. The problem is solved in an analytical way on the Rindler spacetime. In the other cases, we compute the energy spectrum up to the first relativistic corrections, exhibiting the contributions brought by both the geometry and the spin. These calculations are done in two different ways. On the one hand, using a relativistic expansion and, on the other hand, with Foldy-Wouthuysen transformations. Contrary to what is sometimes claimed in the literature, both methods are in agreement, as expected. Finally, we make contact with the GRANIT experiment. Relativistic effects and effects that go beyond the equivalence principle escape the sensitivity of such an experiment. However, we show that the influence of a weak magnetic field could lead to observable phenomena.

Nicolas Boulanger; Fabien Buisseret; Philippe Spindel

2006-10-18T23:59:59.000Z

262

Bound states of Dirac particles in gravitational fields  

Science Journals Connector (OSTI)

We investigate the quantum motion of a neutral Dirac particle bouncing on a mirror in curved spacetime. We consider different geometries: Rindler, Kasner-Taub, and Schwarzschild, and show how to solve the Dirac equation by using geometrical methods. We discuss, in a first-quantized framework, the implementation of appropriate boundary conditions. This leads us to consider a Robin boundary condition that gives the quantization of the energy, the existence of bound states and of critical heights at which the Dirac particle bounces, extending the well-known results established from the Schrdinger equation. We also allow for a nonminimal coupling to a weak magnetic field. The problem is solved in an analytical way on the Rindler spacetime. In the other cases, we compute the energy spectrum up to the first relativistic corrections, exhibiting the contributions brought by both the geometry and the spin. These calculations are done in two different ways. On the one hand, using a relativistic expansion and, on the other hand, with Foldy-Wouthuysen transformations. Contrary to what is sometimes claimed in the literature, both methods are in agreement, as expected. Finally, we make contact with the GRANIT experiment. Relativistic effects and effects that go beyond the equivalence principle escape the sensitivity of such an experiment. However, we show that the influence of a weak magnetic field could lead to observable phenomena.

Nicolas Boulanger; Philippe Spindel; Fabien Buisseret

2006-12-18T23:59:59.000Z

263

Bound States for Nano-Tubes with a Dislocation  

E-Print Network (OSTI)

As a model for an interface in solid state physics, we consider two real-valued potentials $V^{(1)}$ and $V^{(2)}$ on the cylinder or tube $S=\\mathbb R \\times (\\mathbb R/\\mathbb Z)$ where we assume that there exists an interval $(a_0,b_0)$ which is free of spectrum of $-\\Delta+V^{(k)}$ for $k=1,2$. We are then interested in the spectrum of $H_t = -\\Delta + V_t$, for $t \\in \\mathbb R$, where $V_t(x,y) = V^{(1)}(x,y)$, for $x > 0$, and $V_t(x,y) = V^{(2)}(x+t,y)$, for $x < 0$. While the essential spectrum of $H_t$ is independent of $t$, we show that discrete spectrum, related to the interface at $x = 0$, is created in the interval $(a_0, b_0)$ at suitable values of the parameter $t$, provided $-\\Delta + V^{(2)}$ has some essential spectrum in $(-\\infty, a_0]$. We do not require $V^{(1)}$ or $V^{(2)}$ to be periodic. We furthermore show that the discrete eigenvalues of $H_t$ are Lipschitz continuous functions of $t$ if the potential $V^{(2)}$ is locally of bounded variation.

Rainer Hempel; Martin Kohlmann; Marko Stautz; Jrgen Voigt

2014-12-19T23:59:59.000Z

264

Localization in Ad Hoc and Sensor Wireless Networks with Bounded Errors  

E-Print Network (OSTI)

region can be found with a mean error of one foot and a two-foot error bound. Keywords: Localization, error bound, sensor network, position, distance estimates 1 Introduction Advancements in low-power of a networked sensor include: (1) small physical size, (2) low power consumption, (3) limited processing power

Terwilliger, Mark

265

Jordan Thayer (UNH) Bounded Suboptimal Search 1 / 18 Finding Acceptable Solutions Faster  

E-Print Network (OSTI)

Jordan Thayer (UNH) Bounded Suboptimal Search ­ 1 / 18 Finding Acceptable Solutions Faster Using Inadmissible Information Jordan Thayer & Wheeler Ruml Supported by DARPA CSSG program (grant HR0011-09-1-0021) and NSF (grant IIS-0812141) #12;Bounded Suboptimal Heuristic Search Motivation EES Results Jordan Thayer

Ruml, Wheeler

266

Bounding biomass in the Fisher equation Daniel A. Birch,* Yue-Kin Tsang,  

E-Print Network (OSTI)

Bounding biomass in the Fisher equation Daniel A. Birch,* Yue-Kin Tsang, and William R. Young and upper and lower bounds on the biomass and productivity that follow from variational arguments and direct to predict the biomass, productivity, and extinction transitions. All results are illustrated with a simple

Young, William R.

267

A modified algorithm for computing the upper-bound reliabilty of computer networks  

Science Journals Connector (OSTI)

This paper presents a modified algorithm to node elimination process for computing the upper-bound reliability of two-terminal networks. The algorithm has two technique; nodes removal and decomposition technique. The first technique is a modified algorithm ... Keywords: Computer networks, Network reliability, Networks decomposition, Nodes removal, The upper bound reliability

Y. B. Mahdy, A. Younes, M. A. Soliman, M. H. Abdellha

2005-01-01T23:59:59.000Z

268

Context-Bounded Model Checking of LTL Properties for ANSI-C Software  

E-Print Network (OSTI)

Context-Bounded Model Checking of LTL Properties for ANSI-C Software Jeremy Morse1 , Lucas Cordeiro in low-level programming languages like ANSI- C. In this paper, we describe and experiment such as ANSI-C [9, 23, 17]. In context-bounded model checking, the state spaces of such applications

269

SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro  

E-Print Network (OSTI)

SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro University to the verification of embedded soft- ware written in ANSI-C. We have extended the encodings from previous SMT. Keywords-Bounded Model Checking; Satisfiability Modulo Theories; Embedded ANSI-C Software; I. INTRODUCTION

270

New bounds for Betti numbers of semi-algebraic sets and algorithms for  

E-Print Network (OSTI)

1 New bounds for Betti numbers of semi-algebraic sets and algorithms for computing them Saugata on the number of connected components, Betti numbers etc. In terms of: #12;4 Complexity of Semi-algebraic Sets Uniform bounds on the number of connected components, Betti numbers etc. In terms of: The number

Basu, Saugata

271

Determining Error Bounds for Hypothesis Tests in Risk Assessment: A Research Agenda  

E-Print Network (OSTI)

utilities) for the consequences of these errors, default error bounds are typically used. However, while for the error bounds on a case-by-case basis. This would make explicit the anticipated consequences of errors Introduction: The Problem Statistical inference is not deductively valid: the truth of a statement made about

Parsons, Simon

272

An alternative energy bound derivation for a generalized Hasegawa-Mima equation  

E-Print Network (OSTI)

An alternative energy bound derivation for a generalized Hasegawa-Mima equation Jared C. Bronski Razvan Fetecau December 28, 2011 Abstract We present an alternative derivation of the H1 -boundedness function technique similar to the one used for constructing energy bounds for the Kuramoto

Fetecau, Razvan C.

273

4. The Bounded Re-transmission Protocol Jean-Raymond Abrial  

E-Print Network (OSTI)

1 - The Bounded Re-transmission Protocol is a file transfer protocol - This is a problem dealing to handle that problem: timers. - We would like to see how we can formalize such timers #12;The Bounded. #12;Abortion of Protocol at the Sender Site 6 - The Sender can re-transmit the same data at most M

Southampton, University of

274

6. The Bounded Re-transmission Protocol Jean-Raymond Abrial  

E-Print Network (OSTI)

- The Bounded Re-transmission Protocol is a file transfer protocol - This is a problem dealing with fault that problem: timers. - We would like to see how we can formalize such timers #12;The Bounded Retransmission that the Receiver does not confuse (?) a new data with a retransmitted one. #12;Abortion of Protocol at the Sender

Southampton, University of

275

A Branch and Bound Algorithm for the Protein Folding Problem in the HP Lattice Model  

E-Print Network (OSTI)

Article A Branch and Bound Algorithm for the Protein Folding Problem in the HP Lattice Model Mao tool for the protein folding problem. Key words: protein folding, HP model, branch and bound, lattice Introduction The protein folding problem, or the protein struc- ture prediction problem, is one of the most

Istrail, Sorin

276

Bounding Radionuclide Inventory and Accident Consequence Calculation for the 1L Target  

SciTech Connect

A bounding radionuclide inventory for the tungsten of the Los Alamos Neutron Science Center (LANSCE) IL Target is calculated. Based on the bounding inventory, the dose resulting from the maximum credible incident (MCI) is calculated for the maximally exposed offsite individual (MEOl). The design basis accident involves tungsten target oxidation following a loss of cooling accident. Also calculated for the bounding radionuclide inventory is the ratio to the LANSCE inventory threshold for purposes of inventory control as described in the target inventory control policy. A bounding radionuclide inventory calculation for the lL Target was completed using the MCNPX and CINDER'90 codes. Continuous beam delivery at 200 {micro}A to 2500 mA{center_dot}h was assumed. The total calculated activity following this irradiation period is 205,000 Ci. The dose to the MEOI from the MCI is 213 mrem for the bounding inventory. The LANSCE inventory control threshold ratio is 132.

Kelsey, Charles T. IV [Los Alamos National Laboratory

2011-01-01T23:59:59.000Z

277

Constraining a fourth generation of quarks: non-perturbative Higgs boson mass bounds  

E-Print Network (OSTI)

We present a non-perturbative determination of the upper and lower Higgs boson mass bounds with a heavy fourth generation of quarks from numerical lattice computations in a chirally symmetric Higgs-Yukawa model. We find that the upper bound only moderately rises with the quark mass while the lower bound increases significantly, providing additional constraints on the existence of a straight-forward fourth quark generation. We examine the stability of the lower bound under the addition of a higher dimensional operator to the scalar field potential using perturbation theory, demonstrating that it is not significantly altered for small values of the coupling of this operator. For a Higgs boson mass of $\\sim125\\mathrm{GeV}$ we find that the maximum value of the fourth generation quark mass is $\\sim300\\mathrm{GeV}$, which is already in conflict with bounds from direct searches.

John Bulava; Karl Jansen; Attila Nagy

2013-01-15T23:59:59.000Z

278

Lieb-Robinson Bound and Locality for General Markovian Quantum Dynamics  

Science Journals Connector (OSTI)

The Lieb-Robinson bound shows the existence of a maximum speed of signal propagation in discrete quantum mechanical systems with local interactions. This generalizes the concept of relativistic causality beyond field theory, and provides a powerful tool in theoretical condensed matter physics and quantum information science. Here, we extend the scope of this seminal result by considering general Markovian quantum evolution, where we prove that an equivalent bound holds. In addition, we use the generalized bound to demonstrate that correlations in the stationary state of a Markov process decay on a length scale set by the Lieb-Robinson velocity and the systems relaxation time.

David Poulin

2010-05-11T23:59:59.000Z

279

General schedulability bound analysis and its applications in real-time systems  

E-Print Network (OSTI)

-shaped workload model is an extension of the classical leak-bucket task model widely used in network environment. 3) On the basis of the network calculus framework [15], [16], [18], [19], and [23- 25], a new bound derivation methodology is proposed. We derive... optimization problem since one must find an optimal (lower) bound of the utilization in an infinite space of non-schedulable task sets, but more importantly, to the lack of general system model and bound derivation methodology. D. Related Work...

Wu, Jianjia

2007-09-17T23:59:59.000Z

280

Tight bounds on the size of neural networks for classification problems  

SciTech Connect

This paper relies on the entropy of a data-set (i.e., number-of-bits) to prove tight bounds on the size of neural networks solving a classification problem. First, based on a sequence of geometrical steps, the authors constructively compute an upper bound of O(mn) on the number-of-bits for a given data-set - here m is the number of examples and n is the number of dimensions (i.e., R{sup n}). This result is used further in a nonconstructive way to bound the size of neural networks which correctly classify that data-set.

Beiu, V. [Los Alamos National Lab., NM (United States); Pauw, T. de [Universite Catholique de Louvain, Louvain-la-Neuve (Belgium). Dept. de Mathematique

1997-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

Effectiveness of nanoparticle-bound ampicillin in the treatment of Listeria monocytogenes infection in athymic nude mice.  

Science Journals Connector (OSTI)

...research-article Research Article Effectiveness of nanoparticle-bound ampicillin in the treatment...Villejuif, France. The effectiveness of nanoparticle-bound ampicillin was tested in the...the free state. Thus, 2.4 mg of nanoparticle-bound ampicillin (three doses of...

M Youssef; E Fattal; M J Alonso; L Roblot-Treupel; J Sauzires; C Tancrde; A Omns; P Couvreur; A Andremont

1988-08-01T23:59:59.000Z

282

Structure of DNA-Bound FEN1 Reveals Mechanism of Action  

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

Structure of DNA-Bound FEN1 Structure of DNA-Bound FEN1 Reveals Mechanism of Action Structure of DNA-Bound FEN1 Reveals Mechanism of Action Print Tuesday, 24 January 2012 11:30 DNA replication is a critical step in the life of all organisms, insuring that each new cell gets an accurate copy of the genome. Among the legions of proteins required to do this work, the DNA-slicing "flap endonuclease" FEN1 plays a key role. Much of FEN1's structure was solved previously, but the DNA-free structure failed to expose information about the mechanics of how it works. An international team of scientists led by researchers from Berkeley Lab and the Scripps Research Institute has solved the structure of human FEN1 bound to DNA using ALS Beamline 12.3.1, revealing the surprising mechanism behind FEN1's speed, accuracy, and versatility.

283

U-041: Google Chrome Out-of-Bounds Write Error Lets Remote Users Execute  

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

1: Google Chrome Out-of-Bounds Write Error Lets Remote Users 1: Google Chrome Out-of-Bounds Write Error Lets Remote Users Execute Arbitrary Code U-041: Google Chrome Out-of-Bounds Write Error Lets Remote Users Execute Arbitrary Code November 18, 2011 - 9:00am Addthis PROBLEM: Google Chrome Out-of-Bounds Write Error Lets Remote Users Execute Arbitrary Code. PLATFORM: Version(s) prior to 15.0.874.121 ABSTRACT: A remote user can create HTML that, when loaded by the target user, will execute arbitrary code on the target user's system. reference LINKS: Stable Channel Update CVE-2011-3900 SecurityTracker Alert ID: 1026338 IMPACT ASSESSMENT: High Discussion: A vulnerability was reported in Google Chrome. A remote user can cause arbitrary code to be executed on the target user's system. A remote user can create specially crafted HTML that, when loaded by the target user,

284

V-156: Linux Kernel Array Bounds Checking Flaw Lets Local Users Gain  

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

6: Linux Kernel Array Bounds Checking Flaw Lets Local Users 6: Linux Kernel Array Bounds Checking Flaw Lets Local Users Gain Elevated Privileges V-156: Linux Kernel Array Bounds Checking Flaw Lets Local Users Gain Elevated Privileges May 15, 2013 - 12:19am Addthis PROBLEM: Linux Kernel Array Bounds Checking Flaw Lets Local Users Gain Elevated Privileges PLATFORM: Version(s): 2.6.37 to 3.8.9 ABSTRACT: A vulnerability was reported in the Linux Kernel. REFERENCE LINKS: Linux Kernel SecurityTracker Alert ID: 1028565 CVE-2013-2094 IMPACT ASSESSMENT: Medium DISCUSSION: On systems compiled with PERF_EVENTS support, a local user can supply a specially crafted perf_event_open() call to execute arbitrary code on the target system with root privileges. The vulnerability resides in the perf_swevent_init() function in 'kernel/events/core.c'.

285

Upper bounds of the rates of decay for solutions of the Boussinesq equations  

Science Journals Connector (OSTI)

In this paper, upper bounds of the L 2-decay rate for the Boussinesq equations are considered. Using the L 2...decay rate of solutions for the heat equation, and assuming that the ...

Ying Liu

2011-01-01T23:59:59.000Z

286

ODINGER OPERATORS WITH MANY BOUND STATES DAVID DAMANIK AND CHRISTIAN REMLING  

E-Print Network (OSTI)

: (# ess ) H± are bounded below and # ess (H± ) # [0, #). Assuming (# ess ), we can list the negative.1 (Damanik­Killip [5] (see also [6])). Assume (# ess ). Moreover, as­ sume that {E n } is finite. Then # ess

Remling, Christian

287

Quadruped Bounding Control with Variable Duty Cycle via Vertical Impulse Scaling  

E-Print Network (OSTI)

This paper introduces a bounding gait control algorithm that allows a successful implementation of duty cycle modulation in the MIT Cheetah 2. Instead of controlling leg stiffness to emulate a springy leg inspired from ...

Park, Hae won

288

Energy Dependence of Solar Neutrino Suppression and Bounds on the Neutrino Magnetic Moment  

E-Print Network (OSTI)

An analysis of neutrino electron scattering as applied to the SuperKamiokande solar neutrino experiment with the data from the Homestake experiment leads to an upper bound on the neutrino magnetic moment in the range $\\mu_{\

Joao Pulido; Ana M. Mourao

1998-03-02T23:59:59.000Z

289

Termination and complexity bounds for SAFE programs Salvador Lucas Ricardo Pe~na  

E-Print Network (OSTI)

Termination and complexity bounds for SAFE programs Salvador Lucas Ricardo Pe~na Dep. de Sistemas partially supported by the EU (FEDER) and the Spanish MEC, under grant TIN 2004-7943- C04. Salvador Lucas

Lucas, Salvador

290

Optimized Live Heap Bound Analysis Leena Unnikrishnan Scott D. Stoller Yanhong A. Liu ?  

E-Print Network (OSTI)

Optimized Live Heap Bound Analysis Leena Unnikrishnan #3; Scott D. Stoller #3; Yanhong A. Liu algorithm is useful for evaluating other replacement algorithms. The analysis can easily be modi#12;ed

Liu, Yanhong Annie

291

A natural-norm Successive Constraint Method for inf-sup lower bounds  

E-Print Network (OSTI)

We present a new approach for the construction of lower bounds for the inf-sup stability constants required in a posteriori error analysis of reduced basis approximations to affinely parametrized partial differential ...

Huynh, D. B. P.

292

Four-quark Bound States in Chiral SU(3) Quark Model  

E-Print Network (OSTI)

The possibility of $QQ\\bar{q}\\bar{q}$ heavy-light four-quark bound states has been analyzed by means of the chiral SU(3) quark model, where $Q$ is the heavy quark ($c$ or $b$) and $q$ is the light quark ($u$, $d$ or $s$). We obtain a bound state for the $bb\\bar{n}\\bar{n}$ configuration with quantum number $J^{P}=1^{+},I=0$ and for the $cc\\bar{n}\\bar{n}$ ($J^{P}=1^{+},I=0$) configuration which is not bound but slightly above the $D^{*}D^{*}$ threshold (n is $u$ or $d$ quark). Meanwhile, we also conclude that a weakly bound state in $bb\\bar{n}\\bar{n}$ system can also be found without considering the chiral quark interactions between the two light quarks, yet its binding energy is weaker than that with the chiral quark interactions.

M. Zhang; H. X. Zhang; Z. Y. Zhang

2007-11-07T23:59:59.000Z

293

Theory and Modeling of Weakly Bound/Physisorbed Materials for Hydrogen Storage  

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

Presentation on the Theory and Modeling of Weakly Bound/Physisorbed Materials for Hydrogen Storage given at the DOE Theory Focus Session on Hydrogen Storage Materials on May 18, 2006.

294

Bound on the Equation of State of Dark Energy from the Generalized Second Law of Thermodynamics  

Science Journals Connector (OSTI)

Assuming that the equation of state of dark energy is a constant, we obtain the allowed interval of the equation of state of dark energy: w D??1, bounded from the generalized second law of thermodynamics

Rong-Jia Yang; Jing-Zhao Qi; Lihua Feng

2012-06-01T23:59:59.000Z

295

THE ORIENTATION OF MEMBRANE BOUND RADICALS: AN EPR INVESTIGATION OF MAGNETICALLY ORDERED SPINACH CHLOROPLASTS  

E-Print Network (OSTI)

D RADICALS: E B A E O N AN EPR INVESTIGATION OF MAGNETICALLY135-139. re Legends EPR spectra of oriented chloroplastsBOUND RADICALS: AN EPR INVESTIGATION OF MAGNETICALLY ORDERED

Dismukes, G. Charles

2011-01-01T23:59:59.000Z

296

Information-theoretic lower bound on energy cost of stochastic computation  

Science Journals Connector (OSTI)

...Information-theoretic lower bound on energy cost of stochastic computation Karoline...Here, we derive the minimum energy cost of simulating a data sequence of...Here, we derive the minimum energy cost of simulating a complex dataset...

2012-01-01T23:59:59.000Z

297

A lower bound for routing on a completely connected optical communication parallel computer  

SciTech Connect

The task of routing a 2-relation on an n-processor completely connected optical communication parallel computer (OCPC) is considered. A lower bound is presented that applies to any randomized distributed algorithm for this task: specifically, it is shown that the expected number of steps required to route a 2-relation is {Omega}({radical} log log n) in the worst case. For comparison, the best upper bound known is O(log log n).

Goldberg, L.A. [Sandia National Labs., Albuquerque, NM (United States); Jerrum, M. [Edinburgh Univ. (United Kingdom). Dept. of Computer Science; MacKenzie, P.D. [Texas Univ., Austin, TX (United States). Dept. of Computer Sciences

1993-08-03T23:59:59.000Z

298

BIG IMPROVEMENTS OF THE WEIL BOUND FOR ARTIN-SCHREIER CURVES  

E-Print Network (OSTI)

gives the estimate |Nr(f) - qr | (d - 1)(q - 1)q r 2 . This bound can be sharp in general, for instance to a somewhat better bound: |Nr(f) - qr | (d - 1)(q - 1) 2 [2q r 2 ], where [x] denotes the integer part the estimate |Nr(f) - qr | Cd,rq r+1 2 , where Cd,r is the constant Cd,r = r a=0 |a - 1| d - 2 + r - a r - a d

Wan, Daqing

299

Fano-type coupling of a bound paramagnetic state with 2D continuum  

SciTech Connect

We analyze an effect of a bound impurity state located at a tunnel distance from a quantum well (QW). The study is focused on the resonance case when the bound state energy lies within the continuum of the QW states. Using the developed theory we calculate spin polarization of 2D holes induced by paramagnetic (Mn) delta-layer in the vicinity of the QW and indirect exchange interaction between two impurities located at a tunnel distance from electron gas.

Rozhansky, I. V. [A.F. Ioffe Physical Technical Institute, 194021 St.Petersburg, Russia and Lappeenranta University of Technology, P.O. Box 20, FI-53851, Lappeenranta (Finland); Averkiev, N. S. [A.F. Ioffe Physical Technical Institute, 194021 St.Petersburg (Russian Federation); Lhderanta, E. [Lappeenranta University of Technology, P.O. Box 20, FI-53851, Lappeenranta (Finland)

2013-12-04T23:59:59.000Z

300

On the potential energy in an electrostatically bound two-body system  

E-Print Network (OSTI)

The potential energy problem in an electrostatically bound two-body system is studied in the framework of a recently proposed impact model of the electrostatic force and in analogy to the potential energy in a gravitationally bound system. The physical processes are described that result in the variation of the potential energy as a function of the distance between the charged bodies. The energy is extracted from distributions of hypothetical interaction entities modified by the charged bodies.

K. Wilhelm; B. N. Dwivedi

2014-08-30T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

On the potential energy in an electrostatically bound two-body system  

E-Print Network (OSTI)

The potential energy problem in an electrostatically bound two-body system is studied in the framework of a recently proposed impact model of the electrostatic force and in analogy to the potential energy in a gravitationally bound system. The physical processes are described that result in the variation of the potential energy as a function of the distance between the charged bodies. The energy is extracted from distributions of hypothetical interaction entities modified by the charged bodies.

Wilhelm, K

2015-01-01T23:59:59.000Z

302

(Nearly-)Tight Bounds on the Linearity and Contiguity of Christophe Crespelle  

E-Print Network (OSTI)

Workshop France (2012)" #12;Lemma 1 For a rooted complete binary tree T, rank(T) = ph(T) = h(T). Theorem 2 For any rooted tree T, we have rank(T) = ph(T). Upper bounds for contiguity and linearity of cographs. We by their cotree, a rooted tree with two kinds of nodes labeled by P and S, giving a tight upper bound

Paris-Sud XI, Université de

303

Is thermodynamics of the universe bounded by the event horizon a Bekenstein system?  

E-Print Network (OSTI)

In this brief communication, we have studied the validity of the first law of thermodynamics for the universe bounded by event horizon with two examples. The key point is the appropriate choice of the temperature on the event horizon. Finally, we have concluded that universe bounded by the event horizon may be a Bekenstein system and the Einstein's equations and the first law of thermodynamics on the event horizons are equivalent.

Subenoy Chakraborty

2012-06-07T23:59:59.000Z

304

Bounds on variation of the spectrum and spectral subspaces of a few-body Hamiltonian  

E-Print Network (OSTI)

We overview the recent results on the shift of the spectrum and norm bounds for variation of spectral subspaces of a Hermitian operator under an additive Hermitian perturbation. Along with the known results, we present a new subspace variation bound for the generic off-diagonal subspace perturbation problem. We also demonstrate how some of the abstract results may work for few-body Hamiltonians.

Sergio Albeverio; Alexander K. Motovilov

2014-10-13T23:59:59.000Z

305

Heat transfer research on supercritical water flow upward in tube  

SciTech Connect

The experimental research of heat transfer on supercritical water has been carried out on the supercritical water multipurpose test loop with a 7.6 mm upright tube. The experimental data of heat transfer is obtained. The experimental results of thermal-hydraulic parameters on flow and heat transfer of supercritical water show that: Heat transfer enhancement occurs when the fluid temperature reaches pseudo-critical point with low mass flow velocity, and peters out when the mass flow velocity increases. The heat transfer coefficient and Nusselt number decrease with the heat flux or system pressure increases, and increase with the increasing of mass flow velocity. The wall temperature increases when the mass flow velocity decreases or the system pressure increases. (authors)

Li, H. B.; Yang, J. [China Nuclear Power Technology Research Inst., Shenzhen, Guangdong (China); Gu, H. Y.; Zhao, M. [Shanghai Jiao Tong Univ., Shanghai (China); Lu, D. H.; Zhang, J. M.; Wang, F.; Zhang, Y. [China Nuclear Power Technology Research Inst., Shenzhen, Guangdong (China)

2012-07-01T23:59:59.000Z

306

Study of Neutrino Oscillation using Upward Throughgoing Muons  

E-Print Network (OSTI)

Purification System and Radon Free Air System . . . . . . . . . . . . . . 24 2.3 Data Acquisition System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2.2.1 Water Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 2.2.2 20 inch­diameter PMT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 2.2.3 Water

Tokyo, University of

307

617http://www.grad.usf.edu/ SECTION 17  

E-Print Network (OSTI)

) IDS 6237 Ecotourism & Sustainable Tourism Mgmt. Coastal/Marine Habitat (3) Global Sustainability (M

Meyers, Steven D.

308

for classes Go to http://www.usf.edu  

E-Print Network (OSTI)

taken care of your holds, you can begin your class schedule search. #12;Select appropriate term Use this if searching for an online class Choose your campus Start by selecting the appropriate term and campus from when searching for a class. Choose a subject (Ex: ENC) Enter a course # (Ex: 1102) #12;The "Status

Meyers, Steven D.

309

677http://health.usf.edu/nocms/nursing/ SECTION 20  

E-Print Network (OSTI)

Health Nursing (NAH) to AdultGerontology Primary Care Nursing (NAH) Occup. Hlth Nursing (NOH) to Pediatric Health Nursing (NCH) Adult & Occup. Health Nursing (NAO) Dual to AdultGeron. Primary Care AdultGerontology Primary Care Dual Oncology/AdultGerontology Primary Care Family Health Pediatric

Meyers, Steven D.

310

USF MAGAZINE | Fall 2013 15 Photos:CourtesyofRichardPollenz  

E-Print Network (OSTI)

to explore sustainability careers in fields including architecture, renewable energy and marine science. "We Sustainability Pre-College program this summer. The two-week program offered rising juniors and seniors a chance Vairavamoorthy, dean of the Patel College of Global Sustainability. The global sustainability program was one

Meyers, Steven D.

311

http://www.eng.usf.edu/ SECTION 16  

E-Print Network (OSTI)

/6/13 Engineering Management (M.S.) New Course Option: EIN 5201 Creativity in Technology ­ ELECTIVE 11 of Engineering were approved by the USFTampa Graduate Council on the date noted. New Degree Programs Environmental Engineering (Ph.D.) New Program effective 201201 GC4/18/11, BOG 1

Meyers, Steven D.

312

The fundamental limit on the rate of quantum dynamics: the unified bound is tight  

E-Print Network (OSTI)

The question of how fast a quantum state can evolve has attracted a considerable attention in connection with quantum measurement, metrology, and information processing. Since only orthogonal states can be unambiguously distinguished, a transition from a state to an orthogonal one can be taken as the elementary step of a computational process. Therefore, such a transition can be interpreted as the operation of "flipping a qubit", and the number of orthogonal states visited by the system per unit time can be viewed as the maximum rate of operation. A lower bound on the orthogonalization time, based on the energy spread DeltaE, was found by Mandelstam and Tamm. Another bound, based on the average energy E, was established by Margolus and Levitin. The bounds coincide, and can be exactly attained by certain initial states if DeltaE=E; however, the problem remained open of what the situation is otherwise. Here we consider the unified bound that takes into account both DeltaE and E. We prove that there exist no initial states that saturate the bound if DeltaE is not equal to E. However, the bound remains tight: for any given values of DeltaE and E, there exists a one-parameter family of initial states that can approach the bound arbitrarily close when the parameter approaches its limit value. The relation between the largest energy level, the average energy, and the orthogonalization time is also discussed. These results establish the fundamental quantum limit on the rate of operation of any information-processing system.

Lev B. Levitin; Tommaso Toffoli

2009-05-20T23:59:59.000Z

313

Incompressible relativistic spheres: Electrically charged stars, compactness bounds, and quasiblack hole configurations  

E-Print Network (OSTI)

We investigate the properties of relativistic star spheres made of an electrically charged incompressible fluid, generalizing, thus, the Schwarzschild interior solution. The investigation is carried by integrating numerically the hydrostatic equilibrium equation, i.e., the Tolman-Oppenheimer-Volkoff (TOV) equation, with the hypothesis that the charge distribution is proportional to the energy density. We match the interior to a Reissner-Nordstr\\"om exterior, and study some features of these star spheres such as the total mass $M$, the radius $R$, and the total charge $Q$. We also display the pressure profile. For star spheres made of a perfect fluid there is the Buchdahl bound, $R/M\\geq 9/4$, a compactness bound found from generic principles. For the Schwarzschild interior solution there is also the known compactness limit, the interior Schwarzschild limit where the configurations attain infinite central pressure, given by $R/M=9/4$, yielding an instance where the Buchdahl bound is saturated. We study this limit of infinite central pressure for the electrically charged stars and compare it with the Buchdahl-Andr\\'easson bound, a limit that, like the Buchdahl bound for the uncharged case, is obtained by imposing some generic physical conditions on charged configurations. We show that the electrical interior Schwarzschild limit of all but two configurations is always below the Buchdahl-Andr\\'easson limit, i.e., we find that the electrical interior Schwarzschild limit does not generically saturate the Buchdahl-Andr\\'easson bound. We also find that the quasiblack hole limit, i.e., the extremal most compact limit for charged incompressible stars, is reached when the matter is highly charged and the star's central pressure tends to infinity. This is one of the two instances where the Buchdahl-Andr\\'easson bound is saturated, the other being the uncharged, interior Schwarzschild solution.

Jos D. V. Arbail; Jos P. S. Lemos; Vilson T. Zanchin

2014-04-28T23:59:59.000Z

314

On devising Boussinesq-type models with bounded eigenspectra: One horizontal dimension  

Science Journals Connector (OSTI)

Abstract The propagation of water waves in the nearshore region can be described by depth-integrated Boussinesq-type equations. The dispersive and nonlinear characteristics of the equations are governed by tuneable parameters. We examine the associated linear eigenproblem both analytically and numerically using a spectral element method of arbitrary spatial order p. It is shown that existing sets of parameters, found by optimising the linear dispersion relation, give rise to unbounded eigenspectra which govern stability. For explicit time-stepping schemes the global CFL time-step restriction typically requires ? t ? p ? 2 . We derive and present conditions on the parameters under which implicitly-implicit Boussinesq-type equations will exhibit bounded eigenspectra. Two new bounded versions having comparable nonlinear and dispersive properties as the equations of Nwogu (1993) and Schffer and Madsen (1995) are introduced. Using spectral element simulations of stream function waves it is illustrated that (i) the bounded equations capture the physics of the wave motion as well as the standard unbounded equations, and (ii) the bounded equations are computationally more efficient when explicit time-stepping schemes are used. Thus the bounded equations were found to lead to more robust and efficient numerical schemes without compromising the accuracy.

Claes Eskilsson; Allan P. Engsig-Karup

2014-01-01T23:59:59.000Z

315

The Viscosity Bound Conjecture and Hydrodynamics of M2-Brane Theory at Finite Chemical Potential  

E-Print Network (OSTI)

Kovtun, Son and Starinets have conjectured that the viscosity to entropy density ratio $\\eta/s$ is always bounded from below by a universal multiple of $\\hbar$ i.e., $\\hbar/(4\\pi k_{B})$ for all forms of matter. Mysteriously, the proposed viscosity bound appears to be saturated in all computations done whenever a supergravity dual is available. We consider the near horizon limit of a stack of M2-branes in the grand canonical ensemble at finite R-charge densities, corresponding to non-zero angular momentum in the bulk. The corresponding four-dimensional R-charged black hole in Anti-de Sitter space provides a holographic dual in which various transport coefficients can be calculated. We find that the shear viscosity increases as soon as a background R-charge density is turned on. We numerically compute the few first corrections to the shear viscosity to entropy density ratio $\\eta/s$ and surprisingly discover that up to fourth order all corrections originating from a non-zero chemical potential vanish, leaving the bound saturated. This is a sharp signal in favor of the saturation of the viscosity bound for event horizons even in the presence of some finite background field strength. We discuss implications of this observation for the conjectured bound.

Omid Saremi

2006-01-20T23:59:59.000Z

316

Isospin Properties of ($K^-$, $N$) Reactions for the Formation of Deeply-bound Antikaonic Nuclei  

E-Print Network (OSTI)

The formation of deeply-bound antikaonic $K^-/\\bar{K}^0$ nuclear states by nuclear ($K^-$, $N$) reactions is investigated theoretically within a distorted-wave impulse approximation (DWIA), considering the isospin properties of the Fermi-averaged $K^-+ N \\to N + \\bar{K}$ elementary amplitudes. We calculate the formation cross sections of the deeply-bound $\\bar{K}$ states by the ($K^-$, $N$) reactions on the nuclear targets, $^{12}$C and $^{28}$Si, at incident $K^-$ lab momentum $p_{K^-}$ = 1.0 GeV/c and $\\theta_{\\rm lab} = 0^{\\circ}$, introducing a complex effective nucleon number $N_{\\rm eff}$ for unstable bound states in the DWIA. The results show that the deeply-bound $\\bar{K}$ states can be populated dominantly by the ($K^-$, $n$) reaction via the total isoscalar $\\Delta T=0$ transition owing to the isospin nature of the $K^-+ N \\to N + \\bar{K}$ amplitudes, and that the cross sections described by ${\\rm Re}N_{\\rm eff}$ and ${\\rm Arg}N_{\\rm eff}$ enable to deduce the structure of the $\\bar{K}$ nuclear states; the calculated inclusive nucleon spectra for a deep $\\bar{K}$-nucleus potential do not show distinct peak structure in the bound region. The few-body $\\bar{K}\\otimes [NN]$ and $\\bar{K}\\otimes [NNN]$ states formed in ($K^-$, $N$) reactions on $s$-shell nuclear targets, $^3$He, $^3$H and $^4$He, are also discussed.

T. Koike; T. Harada

2008-03-31T23:59:59.000Z

317

Structure of DNA-Bound FEN1 Reveals Mechanism of Action  

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Structure of DNA-Bound FEN1 Reveals Mechanism of Action Print Structure of DNA-Bound FEN1 Reveals Mechanism of Action Print DNA replication is a critical step in the life of all organisms, insuring that each new cell gets an accurate copy of the genome. Among the legions of proteins required to do this work, the DNA-slicing "flap endonuclease" FEN1 plays a key role. Much of FEN1's structure was solved previously, but the DNA-free structure failed to expose information about the mechanics of how it works. An international team of scientists led by researchers from Berkeley Lab and the Scripps Research Institute has solved the structure of human FEN1 bound to DNA using ALS Beamline 12.3.1, revealing the surprising mechanism behind FEN1's speed, accuracy, and versatility. A Recipe for Rigorous Replication

318

Thermodynamic Bounds on Nonlinear Electrostatic Perturbations in Intense Charged Particle Beams  

SciTech Connect

This paper places a lowest upper bound on the field energy in electrostatic perturbations in single-species charged particle beams with initial temperature anisotropy (TllT? < 1). The result applies to all electrostatic perturbations driven by the natural anisotropies that develop in accelerated particle beams, including Harris-type electrostatic instabilities, known to limit the luminosity and minimum spot size attainable in experiments. The thermodynamic bound on the field perturbation energy of the instabilities is obtained from the nonlinear Vlasov-Poisson equations for an arbitrary initial distribution function, including the effects of intense self-fields, finite geometry and nonlinear processes. This paper also includes analytical estimates of the nonlinear bounds for space-charge-dominated and emittance-dominated anisotropic bi-Maxwellian distributions.

Nikolas C. Logan and Ronald C. Davidson

2012-07-18T23:59:59.000Z

319

Bounds for the moduli of continuity for conformal mappings of domains near their accessible boundary arcs  

SciTech Connect

The paper presents bounds for the moduli of continuity {omega}(f, G-bar ,{delta}) of conformal mappings w=f(z) of a bounded simply connected domain G with an arbitrary Jordan boundary onto a bounded simply connected domain with an arbitrary Jordan boundary, the 'quality' of boundaries being taken into account. For a Jordan curve (simple arc or a closed contour), its quality is characterized in general by its modulus of oscillation, and if it has finite length, by a more sensitive modulus of rectifiability-these purely metric concepts were introduced by the author in 1996. Theorems on the behaviour of conformal mappings of simply connected domains of arbitrary nature near open accessible boundary arcs are established. Bibliography: 18 titles.

Dolzhenko, Evgenii P [M. V. Lomonosov Moscow State University, Faculty of Mechanics and Mathematics, Moscow (Russian Federation)

2011-12-31T23:59:59.000Z

320

Improved Bounds on the Phase Transition for the Hard-Core Model in 2-Dimensions  

E-Print Network (OSTI)

For the hard-core lattice gas model defined on independent sets weighted by an activity $\\lambda$, we study the critical activity $\\lambda_c(\\mathbb{Z}^2)$ for the uniqueness/non-uniqueness threshold on the 2-dimensional integer lattice $\\mathbb{Z}^2$. The conjectured value of the critical activity is approximately $3.796$. Until recently, the best lower bound followed from algorithmic results of Weitz (2006). Weitz presented an FPTAS for approximating the partition function for graphs of constant maximum degree $\\Delta$ when $\\lambda2.388$. In this paper, we establish an upper bound for this approach, by showing that, for all $\\sigma$, SSM does not hold on $T_{\\mathrm{saw}}^\\sigma(\\mathbb{Z}^2)$ when $\\lambda>3.4$. We also present a refinement of the approach of Restrepo et al. which improves the lower bound to $\\lambda_c(\\mathbb{Z}^2)>2.48$.

Juan C. Vera; Eric Vigoda; Linji Yang

2014-07-09T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

Higgs boson mass bounds in the presence of a heavy fourth quark family  

E-Print Network (OSTI)

We present Higgs boson mass bounds in a lattice regularization allowing thus for non-perturbative investigations. In particular, we employ a lattice modified chiral invariant Higgs-Yukawa model using the overlap operator. We show results for the upper and lower Higgs boson mass bounds in the presence of a heavy mass-degenerate quark doublet with masses ranging up to 700 GeV. We perform infinite volume extrapolations in most cases, and examine several values of the lattice cutoff. Furthermore, we argue that the lower Higgs boson mass bound is stable with respect to the addition of higher dimensional operators to the scalar field potential. Our results have severe consequences for the phenomenology of a fourth generation of quarks if a light Higgs boson is discovered at the LHC.

John Bulava; Philipp Gerhold; Karl Jansen; Jim Kallarackal; Attila Nagy

2013-01-16T23:59:59.000Z

322

Trapping of electrons in troughs of self generated electromagnetic standing waves in a bounded plasma column  

SciTech Connect

Observations and measurements are reported on electron trapping in troughs of self-generated electromagnetic standing waves in a bounded plasma column confined in a minimum-B field. The boundaries are smaller than the free space wavelength of the waves. Earlier work of researchers primarily focused upon electron localization effects induced by purely electrostatic perturbation. We demonstrate the possibility in the presence of electromagnetic standing waves generated in the bounded plasma column. The electron trapping is verified with electrostatic measurements of the plasma floating potential, electromagnetic measurements of the wave field profile, and optical intensity measurements of Argon ionic line at 488?nm. The experimental results show a reasonably good agreement with predictions of a Monte Carlo simulation code that takes into account all kinematical and dynamical effects in the plasma in the presence of bounded waves and external fields.

Bhattacharjee, Sudeep; Sahu, Debaprasad; Pandey, Shail; Chatterjee, Sanghomitro [Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208016 (India)] [Department of Physics, Indian Institute of Technology Kanpur, Kanpur 208016 (India); Dey, Indranuj [Department of Advanced Energy Engineering Science, Kyushu University, Kasuga Kouen 6-1, Kasuga City 816-8580 (Japan)] [Department of Advanced Energy Engineering Science, Kyushu University, Kasuga Kouen 6-1, Kasuga City 816-8580 (Japan); Roy Chowdhury, Krishanu [Max Planck Institute for the Physics of Complex System, Dresden 01187 (Germany)] [Max Planck Institute for the Physics of Complex System, Dresden 01187 (Germany)

2014-01-15T23:59:59.000Z

323

The Mayer series of the Lennard-Jones gas: improved bounds for the convergence radius  

E-Print Network (OSTI)

We provide a lower bound for the convergence radius of the Mayer series of the Lennard-Jones gas which strongly improves on the classical bound obtained by Penrose and Ruelle 1963. To obtain this result we use an alternative estimate recently proposed by Morais et al. (J. Stat. Phys. 2014) for a restricted class of stable and tempered pair potentials (namely those which can be written as the sum of a non-negative potential plus an absolutely integrable and stable potential) combined with a method developed by Locatelli and Schoen (J. Glob. Optim. 2002) for establishing a lower bound for the minimal interatomic distance between particles interacting via a Morse potential in a cluster of minimum-energy configurations.

Bernardo N. B. de Lima; Aldo Procacci

2014-08-04T23:59:59.000Z

324

Bounds on Invisible Higgs boson Decays from $t\\bar{t}H$ Production  

E-Print Network (OSTI)

We present an upper bound on the branching fraction of the Higgs boson to invisible particles, by recasting a CMS search for stop quarks decaying to $t\\bar{t}+\\missET$. The observed (expected) bound, BF($H\\rightarrow$inv.$)<0. 40 (0.65)$ at 95\\% CL, is the strongest direct limit to date, benefiting from a downward fluctuation in the CMS data in that channel. In addition, we combine this new constraint with existing published constraints to give an observed (expected) bound of BF($H\\rightarrow$inv.$)<0. 40 (0.40)$ at 95\\% CL, and show some of the implications for theories of dark matter which communicate through the Higgs portal.

Ning Zhou; Zepyoor Khechadoorian; Daniel Whiteson; Tim Tait

2014-07-31T23:59:59.000Z

325

Quantum tunneling and reflection of a molecule with a single bound state  

SciTech Connect

In this article, we present the results of studies on the quantum mechanical tunneling and reflection of a diatomic, homonuclear molecule with a single bound state incident upon a potential barrier. In the first study, we investigate the tunneling of a molecule using a time-dependent formulation. The molecular wave function is modeled as a Gaussian wave packet, and its propagation is calculated numerically using Crank-Nicholson integration. It is found that a molecule may transition between the bound state and an unbound state numerous times during the process of reflection from or transmission past the barrier. It is also found that, in addition to reflecting and transmitting, the molecule may also temporarily straddle the potential barrier in an unbound state. In the second study, we consider the case of a molecule incident in the bound state upon a step potential with energy less than the step. We show that in the limit where the binding energy e{sub 0} approaches zero and the step potential V{sub 0} goes to infinity, the molecule cannot remain in a bound state if the center of mass gets closer to the step than an arbitrarily large distance x{sub 0} which increases as the magnitude of e{sub 0} decreases, as V{sub 0} increases, or both. We also show that, for e{sub 0{yields}}0{sup -} and V{sub 0{yields}{infinity}}, if the molecule is incident in the bound state, it is reflected in the bound state with probability equal to unity, when the center of mass reaches the reflection distance x{sub 0}. We verify that the unbound states exhibit the expected physical behavior. We discuss some surprising results. Connections between our results and investigations done in cold atoms, excitons, Cooper pairs, and Rydberg atoms are discussed.

Kavka, Jeremy J.; Kerbrat, Danielle; Shegelski, Mark R. A. [Department of Physics, University of Northern British Columbia, Prince George, British Columbia V2N 4Z9 (Canada)

2010-02-15T23:59:59.000Z

326

Approximation method for a spherical bound system in the quantum plasma  

SciTech Connect

A system of quantum hydrodynamic equations has been used for investigating the dielectric tensor and dispersion equation of a semiconductor as a quantum magnetized plasma. Dispersion relations and their modifications due to quantum effects are derived for both longitudinal and transverse waves. The number of states and energy levels are analytically estimated for a spherical bound system embedded in a semiconductor quantum plasma. The results show that longitudinal waves decay rapidly and do not interact with the spherical bound system. The energy shifts caused by the spin-orbit interaction and the Zeeman effect are calculated.

Mehramiz, A.; Sobhanian, S. [Department of Atomic and Molecular Physics, Faculty of Physics, University of Tabriz, East Azerbaijan 51664 (Iran, Islamic Republic of); Mahmoodi, J. [Department of Physics, Faculty of Science, University of Qom, P.O. Box 3716146611, Qom (Iran, Islamic Republic of)

2010-08-15T23:59:59.000Z

327

Unitarity Bounds and RG Flows in Time Dependent Quantum Field Theory  

SciTech Connect

We generalize unitarity bounds on operator dimensions in conformal field theory to field theories with spacetime dependent couplings. Below the energy scale of spacetime variation of the couplings, their evolution can strongly affect the physics, effectively shifting the infrared operator scaling and unitarity bounds determined from correlation functions in the theory. We analyze this explicitly for large-N double-trace flows, and connect these to UV complete field theories. One motivating class of examples comes from our previous work on FRW holography, where this effect explains the range of flavors allowed in the dual, time dependent, field theory.

Dong, Xi; Horn, Bart; Silverstein, Eva; Torroba, Gonzalo; /Stanford U., ITP /Stanford U., Phys. Dept. /SLAC

2012-04-05T23:59:59.000Z

328

Bounds on the map threshold of iterative decoding systems with erasure noise  

E-Print Network (OSTI)

BOUNDS ON THE MAP THRESHOLD OF ITERATIVE DECODING SYSTEMS WITH ERASURE NOISE A Thesis by CHIA-WEN WANG Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment of the requirements for the degree of MASTER OF SCIENCE... August 2008 Major Subject: Electrical Engineering BOUNDS ON THE MAP THRESHOLD OF ITERATIVE DECODING SYSTEMS WITH ERASURE NOISE A Thesis by CHIA-WEN WANG Submitted to the O ce of Graduate Studies of Texas A&M University in partial ful llment...

Wang, Chia-Wen

2008-10-10T23:59:59.000Z

329

Tight bound on coherent-state-based entanglement generation over lossy channels  

SciTech Connect

The first stage of the hybrid quantum repeaters is entanglement generation based on transmission of pulses in coherent states over a lossy channel. Protocols to make entanglement with only one type of error are favorable for rendering subsequent entanglement distillation efficient. Here we provide the tight upper bound on performances of these protocols that is determined only by the channel loss. In addition, we show that this bound is achievable by utilizing a proposed protocol [K. Azuma, N. Sota, R. Namiki, S. K. Oezdemir, T. Yamamoto, M. Koashi, and N. Imoto, Phys. Rev. A 80, 060303(R) (2009)] composed of a simple combination of linear optical elements and photon-number-resolving detectors.

Azuma, Koji; Sota, Naoya; Koashi, Masato; Imoto, Nobuyuki [Division of Materials Physics, Department of Materials Engineering Science, Graduate School of Engineering Science, Osaka University, 1-3 Machikaneyama, Toyonaka, Osaka 560-8531 (Japan)

2010-02-15T23:59:59.000Z

330

Bounds on the length of magnetic field lines in a two-dimensional plasma  

Science Journals Connector (OSTI)

Magnetic field lines in ideal turbulent plasmas tend to become quite complicated and their length to grow in time. Diffusivity allows for reconnection and possible shortening, but this fact has not so far been rigorously quantified. We show that in a two-dimensional diffusive plasma the mean length of field lines stays bounded for all time. Moreover, these estimates are local, in the sense that the mean values of magnetic field and velocity in the neighborhood of a ball determine bounds for length within the ball, without recourse to external magnitudes.

Manuel Nez

2001-02-27T23:59:59.000Z

331

Quantum Bound of the Shear Viscosity of a Strongly Coupled Plasma  

Science Journals Connector (OSTI)

String theory methods led to the hypothesis that the ratio of a shear viscosity coefficient to the volume density of entropy of any physical system has a lower bound. Systems with strong coupling have a small viscosity as compared to weakly coupled plasmas in which the viscosity is proportional to the mean free path. Here, we have estimated the fully ionized strongly coupled plasma viscosity based on the dynamic experimental data on electrical conductivity and have shown that the ratio of viscosity to entropy of the strongly coupled plasma is very close to that of the lower bound predicted by the string theory.

V. E. Fortov and V. B. Mintsev

2013-09-17T23:59:59.000Z

332

Tight Bounds for Online Vector Bin Packing Blavatnik School of Computer  

E-Print Network (OSTI)

@gmail.com Seny Kamara Crypto Group, Microsoft Research, Redmond, WA senyk@microsoft.com Bruce Shepherd Department of Mathematics and Statistics, McGill University, Montreal, Canada. bruce.shepherd bounds (of (d 1 B - ) ) if the bin size B Z+ is allowed to grow. Finally, we discuss almost

Shepherd, Bruce

333

ODINGER OPERATORS WITH MANY BOUND STATES DAVID DAMANIK AND CHRISTIAN REMLING  

E-Print Network (OSTI)

: (# ess ) H± are bounded below and # ess (H± ) # [0, #). Assuming (# ess ), we can list the negative set. Theorem 1.1 (Damanik­Killip [5] (see also [6])). Assume (# ess ). Moreover, as­ sume that {En } is finite. Then # ess = [0, #), and the spectrum is purely absolutely continuous on [0, #) for any boundary

334

ODINGER OPERATORS WITH MANY BOUND STATES DAVID DAMANIK AND CHRISTIAN REMLING  

E-Print Network (OSTI)

: (# ess ) H± are bounded below and # ess (H± ) # [0, #). Assuming (# ess ), we can list the negative set. Theorem 1.1 (Damanik­Killip [5] (see also [6])). Assume (# ess ). Moreover, as­ sume that {E n } is finite. Then # ess = [0, #), and the spectrum is purely absolutely continuous on [0, #) for any boundary

Damanik, David

335

SCHRODINGER OPERATORS WITH MANY BOUND STATES DAVID DAMANIK AND CHRISTIAN REMLING  

E-Print Network (OSTI)

to any possible positive result one might imagine. So our basic assumption is the following: (ess) H± are bounded below and ess(H±) [0, ). Assuming (ess), we can list the negative eigenvalues of H+ and H-Killip [5] (see also [6])). Assume (ess). Moreover, as- sume that {En} is finite. Then ess = [0

Damanik, David

336

SCHRODINGER OPERATORS WITH MANY BOUND STATES DAVID DAMANIK AND CHRISTIAN REMLING  

E-Print Network (OSTI)

to any possible positive result one might imagine. So our basic assumption is the following: (ess) H± are bounded below and ess(H±) [0, ). Assuming (ess), we can list the negative eigenvalues of H+ and H])). Assume (ess). Moreover, as- sume that {En} is finite. Then ess = [0, ), and the spectrum is purely

Remling, Christian

337

Bound Together: Masters and Slaves on the Kansas-Missouri Border, 1825-1865  

E-Print Network (OSTI)

Bound Together chronicles the rise and fall of the slave system on the Kansas-Missouri border from the earliest years of American settlement in the 1820s to the end of the Civil War. This work uses nineteen counties along ...

Epps, Kristen Kimberly

2010-04-20T23:59:59.000Z

338

Design and Implementation of a Terrorist Fraud Resilient Distance Bounding System  

E-Print Network (OSTI)

Design and Implementation of a Terrorist Fraud Resilient Distance Bounding System Aanjhan, existing analog implementations do not support resilience against Terrorist Fraud attacks; they protect only against Distance Fraud and Mafia Fraud attacks. We address this problem and propose a new, hy

Capkun, Srdjan

339

Density functional theory and Kohn-Sham scheme for self-bound systems  

E-Print Network (OSTI)

We demonstrate how the separation of the total energy of a self-bound system into a functional of the internal one-body Fermionic density and a function of an arbitrary wave vector describing the center-of-mass kinetic energy can be used to set-up an "internal" Kohn-Sham scheme.

J. Messud; M. Bender; E. Suraud

2009-11-10T23:59:59.000Z

340

Approximation Methods for Pricing Problems under the Nested Logit Model with Price Bounds  

E-Print Network (OSTI)

Approximation Methods for Pricing Problems under the Nested Logit Model with Price Bounds W@orie.cornell.edu November 13, 2012 Abstract We consider two variants of a pricing problem under the nested logit model. In the first variant, the set of products offered to customers is fixed and we want to determine the prices

Topaloglu, Huseyin

Note: This page contains sample records for the topic "usf upward bound" 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

Comparing the effect of different spine and leg designs for a small, bounding quadruped robot  

E-Print Network (OSTI)

Comparing the effect of different spine and leg designs for a small, bounding quadruped robot Peter ***Chair of Biomechatronics, Technische Universit�at Ilmenau, Germany 1 Introduction We present Lynx-robot, a quadruped, modular, compliant robot. It features an either directly actuated, single-joint spine design

Thévenaz, Jacques

342

Improved Bounds on the Effective Yield Surface of Inhomogeneous Rigid/Plastic Materials  

E-Print Network (OSTI)

Improved Bounds on the Effective Yield Surface of Inhomogeneous Rigid/Plastic Materials Tamara January 1993 Abstract The yield surface of a mixture of rigid/perfectly­plastic materials is examined plasticity under suffi­ ciently large stress. The set of stresses at which the deformation changes from

Olson, Tamara

343

Stochastic electron heating in bounded radio-frequency plasmas I. D. Kaganovich,a)  

E-Print Network (OSTI)

Stochastic electron heating in bounded radio-frequency plasmas I. D. Kaganovich,a) V. I. Kolobov Received 2 November 1995; accepted for publication 7 October 1996 The mechanisms of electron heating in low for the stochastic heating. A classification of heating regimes is performed and expressions for the power deposition

Kaganovich, Igor

344

AN EXPLICIT BOUND FOR UNIFORM PERFECTNESS OF THE JULIA SETS OF RATIONAL MAPS  

E-Print Network (OSTI)

Abstract. A compact set C in the Riemann sphere is called uniformly perfect if the moduli of annuli of the Julia sets. We also give a concrete bound for the family of quadratic polynomials fcz = z 2 + c in terms , and afterwards by many authors see 15 and its references. By de nition, the sets with some kind of self

Sugawa, Toshiyuki

345

AN EXPLICIT BOUND FOR UNIFORM PERFECTNESS OF THE JULIA SETS OF RATIONAL MAPS  

E-Print Network (OSTI)

MAPS TOSHIYUKI SUGAWA Abstract.A compact set C of the H* *ausdorff dimension of the Julia sets. We also give a concrete bound for the family). By definition, the sets with some kind of self-s* *imilarities are expected to have uniform perfectness

Sugawa, Toshiyuki

346

QUANTITATIVE BOUNDS ON THE DISCRETE SPECTRUM OF NON SELF-ADJOINT QUANTUM  

E-Print Network (OSTI)

A55. Key words and phrases. Non self-adjoint relatively compact perturbations of self- adjoint compact perturbation with respect to the self- adjoint operator H0, then the Weyl's criterionQUANTITATIVE BOUNDS ON THE DISCRETE SPECTRUM OF NON SELF-ADJOINT QUANTUM MAGNETIC HAMILTONIANS

Boyer, Edmond

347

Nonlinear control for systems with bounded inputs: Real-time embedded control applied to UAVs  

E-Print Network (OSTI)

Nonlinear control for systems with bounded inputs: Real-time embedded control applied to UAVs Farid) UAVs including conventional helicopters, four- rotors aircraft (Draganflyer) and several designs for small aerial vehicles, some restrictions and conditions specific to small UAVs have to be considered

Sontag, Eduardo

348

Upper bounds and asymptotics in a quantitative version of the Oppenheim conjecture.  

E-Print Network (OSTI)

Upper bounds and asymptotics in a quantitative version of the Oppenheim conjecture. Alex Eskin. The Oppenheim conjecture, proved by G.A. Margulis (cf. [Mar2, Mar3, Mar4]) states that if n ?? 3, and Q, the Oppenheim conjecture enjoyed attention and many studies, mostly using analytic number theory methods. See

Eskin, Alex

349

Upper bounds and asymptotics in a quantitative version of the Oppenheim conjecture.  

E-Print Network (OSTI)

Upper bounds and asymptotics in a quantitative version of the Oppenheim variables. Let LQ = Q(* *Zn) denote the set of values of Q at integral points. The Oppenheim conjecture, the Oppenheim conjecture enjoyed attention and many studies, mostly using analy* *tic number theory methods

Eskin, Alex

350

Oceanic nutrient and oxygen transports and bounds on export production during the World Ocean Circulation Experiment  

E-Print Network (OSTI)

of intense climate interest. A large fraction of the carbon fixed in the oceanic surface waters is recycledOceanic nutrient and oxygen transports and bounds on export production during the World Ocean are estimated from selected hydrographic sections from the World Ocean Circulation Experiment spanning the world

Wunsch, Carl

351

Experimental Dependability Evaluation of a Fail-Bounded Jet Engine Control System for Unmanned Aerial Vehicles  

E-Print Network (OSTI)

robustness of the software, most injected faults were still non-effective (69.4%) or caused bounded failures exceptions and 1.9% were detected by executable assertions in the software. The remaining 1.6% is classified are to combine high safety requirements with low maintenance, development and production costs

Karlsson, Johan

352

Magnetically bound states of electronic and positronic hydrogen ions: The case of zero orbital angular momentum  

E-Print Network (OSTI)

orbital angular momentum J, and zero net spin i.e., it is a singlet state 2 . Furthermore a positronMagnetically bound states of electronic and positronic hydrogen ions: The case of zero orbital in a uniform magnetic field B, concentrating on states with zero orbital angular momentum J. It is shown

California at San Diego, University of

353

Bounds on the Solar Antineutrino total Flux and Energy spectrum from the SK experiment  

E-Print Network (OSTI)

A search for inverse beta decay electron antineutrinos has been carried out using the 825 days sample of solar data obtained at SK. The absence of a significant signal, that is, contributions to the total SK background and their angular variations has set upper bounds on a) the absolute flux of solar antineutrinos originated from ${}^8 B$ neutrinos $\\Phi_{\\bar{\

E. Torrente-Lujan

1999-11-23T23:59:59.000Z

354

Bounds for Small-Error and Zero-Error Quantum Algorithms Harry Buhrman  

E-Print Network (OSTI)

Bounds for Small-Error and Zero-Error Quantum Algorithms Harry Buhrman CWI Richard Cleve University algorithm with an auxiliary input r, which is uniformly distributed over some underlying sample space. In this case, for any x 2 f0;1gn, f(x) = 1 iff (9r 2 S)(A(x;r) = 1). Grover's quantum search algorithm [15

de Wolf, Ronald

355

Improved bounds and algorithms for graph cuts and network reliability David G. Harris  

E-Print Network (OSTI)

Improved bounds and algorithms for graph cuts and network reliability David G. Harris Aravind, the graphs we deal with will be multi-graphs with no self-loops. We define R(p), the reliability polyno- mial there is no currently known algorithm for estimating R(p), the complementary probability U(p) = 1 - R(p), which we

Srinivasan, Aravind

356

Lower Bound for Envy-Free and Truthful Makespan Approximation on Related Machines  

E-Print Network (OSTI)

Lower Bound for Envy-Free and Truthful Makespan Approximation on Related Machines Lisa Fleischer Zhenghui Wang July 14, 2011 Abstract We study problems of scheduling jobs on related machines so as to minimize the makespan in the setting where machines are strategic agents. In this problem, each job j has

Fleischer, Lisa K.

357

Upper bound of polymeric membranes for mixed-gas CO2/CH4 separations  

Science Journals Connector (OSTI)

Abstract Membrane polymers with high permeability and high selectivity are preferred for gas separations. However, there exists a trade-off or upper bound, i.e., polymers with higher permeability often exhibit lower selectivity, and vice versa. The upper bound for separation of various gas pairs has been empirically drawn and theoretically rationalized using pure-gas data. However, for CO2/CH4 separation, the high pressure CO2 and non-methane hydrocarbons can plasticize polymers, increasing mixed-gas CO2 permeability and decreasing mixed-gas CO2/CH4 selectivity. This study aims to apply a modified free volume theory to interpret CO2/CH4 separation performance in polymeric membranes. The model satisfactorily describes the pure-gas upper bounds for various gas pairs including CO2/CH4, the effect of high pressure CO2 on mixed-gas CO2/CH4 separation properties, and the practical mixed-gas upper bound for CO2/CH4 separations. The CO2 is found to have an estimated glass transition temperature of 108K. The assumptions of this model are discussed, and future work to improve this model is proposed.

Haiqing Lin; Milad Yavari

2015-01-01T23:59:59.000Z

358

Properties of a bound ensemble of repelling atoms R. S. Berry1  

E-Print Network (OSTI)

Properties of a bound ensemble of repelling atoms R. S. Berry1 and B. M. Smirnov2 1Department gases at high pressures or systems of repelling atoms interacting via a pair interaction. An analysis based on numbers of nearest neighbors of a test atom shows that the crystalline state is not the most

Berry, R. Stephen

359

Workshop on exotic hadronic atoms, deeply bound kaonic nuclear states and antihydrogen: present results, future challenges  

E-Print Network (OSTI)

These are the miniproceedings of the workshop "Exotic hadronic atoms, deeply bound kaonic nuclear states and antihydrogen: present results, future challenges," which was held at the European Centre for Theoretical Nuclear Physics and Related Studies (ECT*), Trento (Italy), June 19-24, 2006. The document includes a short presentation of the topics, the list of participants, and a short contribution from each speaker.

Catalina Curceanu; Akaki Rusetsky; Eberhard Widmann

2006-10-16T23:59:59.000Z

360

USING MODEL CHECKING TO DERIVE LOOP BOUNDS OF GENERAL LOOPS WITHIN ANSI-C APPLICATIONS FOR  

E-Print Network (OSTI)

USING MODEL CHECKING TO DERIVE LOOP BOUNDS OF GENERAL LOOPS WITHIN ANSI-C APPLICATIONS for applications written in ANSI-C. The described method uses a model checker and a binary search algorithm with little pro- gramming effort for applications written in ANSI-C. The performance is probably inferior

Note: This page contains sample records for the topic "usf upward bound" 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

SMT-Based Bounded Model Checking for Embedded ANSI-C Software  

E-Print Network (OSTI)

1 SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro, Bernd Fischer software written in ANSI-C in order to improve scalability and precision in a completely automatic way. We was provided for ANSI-C [5] constructs such as bit-level operations, fixed- point arithmetic, pointers (i

362

SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro  

E-Print Network (OSTI)

SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro University to the verification of embedded soft- ware written in ANSI-C. We have extended the encod- ings from previous SMT and linear arithmetic were considered, but no encoding was provided for ANSI-C [6] constructs such as bit

363

Oscillation on the Ultraviolet Bound-Free Continua of Diatomic Molecular Xenon and Molecular Krypton  

Science Journals Connector (OSTI)

The initial proposal for the use of molecular bound-free transitions in laser systems was advanced by Houtermans 1 in 1960 in relation to the continua of H2 and Hg2. In spite of this early suggestion, only relati...

C. K. Rhodes; P. W. Hoff

1974-01-01T23:59:59.000Z

364

Further results on global stabilization for multiple integrators with bounded controls Nicolas Marchand  

E-Print Network (OSTI)

Marchand Laboratoire d'Automatique de Grenoble, INPG-UJF-CNRS UMR 5528, ENSIEG BP 46, 38402 Saint Martin d'H`eres Cedex, France Nicolas.Marchand@inpg.fr Abstract-- In this paper, we propose a class of nonlinear bounded

Sontag, Eduardo

365

Algorithms for BoundedError Correlation of High Dimensional Data in Microarray Experiments  

E-Print Network (OSTI)

Algorithms for Bounded­Error Correlation of High Dimensional Data in Microarray Experiments #3 of clustering continuous valued data has been well studied in literature. Its application to microarray analysis are relatively un­ explored. An instance of analysis of discrete­attributed data arises in detecting co

Szpankowski, Wojciech

366

A bounded dynamic programming approach to schedule operations in a cross docking platform  

Science Journals Connector (OSTI)

Cross docking is a logistic technique employed to reduce the inventory holding, order picking, transportation costs as well as the delivery time. Products arriving to the cross dock are unloaded from inbound trailers, possibly reconsolidated with other ... Keywords: Bounding procedures, Cross docking, Dynamic programming, Multiple docks, Scheduling

Glgn Alpan; Rim Larbi; Bernard Penz

2011-04-01T23:59:59.000Z

367

THE CURRENT INDUCED BY A MAGNETIC FIELD IN A PHYSICALLY BOUNDED PLASMA  

Science Journals Connector (OSTI)

...term in parentheses, Pai is quite right in neglecting it. But in situations like those arising in dealing with thermonuclear fusion, where the necessary bounding walls are at a low tem- perature so that they only receive ions and electrons and...

Joseph Slepian

1962-01-01T23:59:59.000Z

368

Identification and characterization of a protein covalently bound to DNA of minute virus of mice.  

Science Journals Connector (OSTI)

...5' end of the DNA. The terminal protein (TP) bound on all DNA forms has a relative molecular...infected cells. Immunologic comparison of the TP with the other known viral proteins suggests that the TP is not related to the capsid proteins or NS-1...

M Chow; J W Bodnar; M Polvino-Bodnar; D C Ward

1986-03-01T23:59:59.000Z

369

Tight Lower Bounds for st-Connectivity on the NNJAG Model (jeff@cs.yorku.ca)  

E-Print Network (OSTI)

4=3) on the NNJAG model by Edmonds Edm93a]. Our lower bound is tight for S 2 O(n1 ), for any > 0 to the size of the internal mem- ory of a machine. In these applications algorithms that run in small space

Edmonds, Jeff

370

Coordination of Copper to the Membrane-Bound Form of ?-Synuclein  

SciTech Connect

Aggregation of the 140 amino acid protein ?-synuclein (?-syn) is linked to the development of Parkinson's disease (PD). ?-Syn is a copper binding protein with potential function as a regulator of metal dependent redox activity. Epidemiological studies suggest that human exposure to excess copper increases the incidence of PD. ?-Syn exists in both solution and membrane bound forms. Previous work evaluated the Cu2+ uptake for ?-syn in solution and identified Met1-Asp2 and His50 as primary contributors to the coordination shell, with a dissociation constant of approximately 0.1 nM. When bound to the membrane bilayer, ?-syn takes on a predominantly helical conformation, which spatially separates His50 from the protein N-terminus and is therefore incompatible with the copper coordination geometry of the solution state. Here we use circular dichroism and electron paramagnetic resonance (continuous wave and pulsed) to evaluate copper coordination to the membrane bound form of ?-syn. In this molecular environment, Cu2+ binds exclusively to the protein N-terminus (Met1-Asp2) with no participation from His50. Copper does not alter the membrane bound ?-syn conformation, or enhance the protein's release from the bilayer. The Cu2+ affinity is similar to that identified for solution ?-syn suggesting that copper coordination is retained in the membrane. Consideration of these results suggests that copper exerts its greatest conformational affect on the solution form of ?-syn and this species may therefore be precursor to PD arising from environmental copper exposure.

Dudzik, Christopher G.; Walter, Eric D.; Abrams, Benjamin S.; Jurica, Melissa S.; Millhauser, Glenn L.

2013-01-01T23:59:59.000Z

371

Acidity and catalytic activity of zeolite catalysts bound with silica and alumina  

E-Print Network (OSTI)

. Micropore surface area and micropore volume are reduced by about 19% and 18%, respectively, indicating some micropores of ZSM-5 are blocked on binding with silica. SiO2-bound ZSM-5 catalysts have less catalytic activity for butane transformation (cracking...

Wu, Xianchun

2004-09-30T23:59:59.000Z

372

Self-Assembly of Arbitrary Shapes Using RNAse Enzymes: Meeting the Kolmogorov Bound with  

E-Print Network (OSTI)

Self-Assembly of Arbitrary Shapes Using RNAse Enzymes: Meeting the Kolmogorov Bound with Small@uwplatt.edu Abstract We consider a model of algorithmic self-assembly of geometric shapes out of square Wang tiles Biomolecular computation, RNAse enzyme self-assembly, algorithmic self-assembly, Komogorov complexity Digital

Paris-Sud XI, Université de

373

Self-Assembly of Arbitrary Shapes Using RNAse Enzymes: Meeting the Kolmogorov Bound with  

E-Print Network (OSTI)

Self-Assembly of Arbitrary Shapes Using RNAse Enzymes: Meeting the Kolmogorov Bound with Small@uwplatt.edu This research was supported in part by NSF grant CDI-0941538 Abstract We consider a model of algorithmic self-assembly Biomolecular computation, RNAse enzyme self-assembly, algorithmic self-assembly, Komogorov complexity Digital

Demaine, Erik

374

Determining Error Bounds for Hypothesis Tests in Risk Assessment: A Research Agenda  

E-Print Network (OSTI)

) for the consequences of these errors, default error bounds are typically used. However, while these may be appropriate­by­case basis. This would make explicit the anticipated consequences of errors and the trade­offs involved Statistical inference is not deductively valid: the truth of a statement made about a sam­ ple (for example

McBurney, Peter

375

Bounds on the Nonminimal Coupling of the Higgs Boson to Gravity  

E-Print Network (OSTI)

We derive the first bound on the value of the Higgs boson non-minimal coupling to the Ricci scalar. We show that the recent discovery of the Higgs boson at the Large Hadron Collider at CERN implies that the non-minimal coupling is smaller than $2.6\\times 10^{15}$.

Michael Atkins; Xavier Calmet

2013-02-01T23:59:59.000Z

376

Bounds on the Gain of Network Coding and Broadcasting in Wireless Networks  

E-Print Network (OSTI)

1 Bounds on the Gain of Network Coding and Broadcasting in Wireless Networks Junning Liu , Dennis the possibility of network coding and broadcasting in their model, and recent work has suggested network coding and broadcasting in a )10 random topology that the throughput scales as ¥§¦¨¤©2

Massachusetts at Amherst, University of

377

Error Bounds for the Large Time Step Glimm Scheme Applied to Scalar Conservation Laws 1  

E-Print Network (OSTI)

for the Glimm scheme under the restriction of Courant numbers up to 1=2. 1. Introduction The large time step solution of (1) generated from the LTS Glimm scheme, #1;x the spatial mesh length and #1;t the time stepError Bounds for the Large Time Step Glimm Scheme Applied to Scalar Conservation Laws 1 Jinyang

378

Bound states in pion-nucleus velocity-dependent potentials: Finite or infinite number  

Science Journals Connector (OSTI)

The specific example suggested by Cariena and Sesma is shown to yield an infinite number of bound states in agreement with the general results claimed earlier by Ericson and Myhrer and by Mandelzweig, Gal, and Friedman, and in accordance with a rigorous proof given here.

A. Gal and V. B. Mandelzweig

1984-07-01T23:59:59.000Z

379

Nested linear codes achieve Marton's inner bound for general broadcast channels  

E-Print Network (OSTI)

Nested linear codes achieve Marton's inner bound for general broadcast channels Arun Padakandla the point-to-point capacity of an arbitrary discrete memoryless channel. In this paper, we study nested with and without channel state information at the transmitter. Furthermore, we prove nested linear codes achieve

Pradhan, Sandeep

380

Search for -Meson Nuclear Bound States in the \\overlinep + AZ + A-1(Z-1) Reaction  

Science Journals Connector (OSTI)

......systematic study over several nuclear targets will yield a...337 Search for -Meson Nuclear Bound States in the...Germany 7KEK (High Energy Accelerator Research Organization...8Research Center for Nuclear Physics (RCNP), Osaka...hadron mass from QCD vacuum. The mechanism is known......

P. Bhler; C. Curceanu; C. Guaraldo; O. Hartmann; K. Hicks; M. Iwasaki; T. Ishiwatari; P. Kienle; J. Marton; R. Muto; M. Niiyama; H. Noumi; H. Ohnishi; S. Okada; A. Romero Vidal; A. Sakaguchi; F. Sakuma; S. Sawada; D. Sirghi; F. Sirghi; K. Suzuki; K. Tsukada; D. J. Tedeschi; O. Vazquez Doce; E. Widmann; S. Yokkaichi; J. Zmeskal; J-PARC P29 Collaboration

2010-10-01T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

Secure Identification and QKD in the Bounded-Quantum-Storage Model  

E-Print Network (OSTI)

at most one possible password for each exe- cution of the scheme. We propose a solution in the bounded Security in Practice, funded by the Danish Natural Science Re- search Council. Supported by the European and Security, funded by the Danish Natural Sciences Research Council. Centrum voor Wiskunde en Informatica

Salvail, Louis

382

Secure Identification and QKD in the Bounded-Quantum-Storage Model  

E-Print Network (OSTI)

at most one possible password for each exe- cution of the scheme. We propose a solution in the bounded in Practice, funded by the Danish Natural Science Research Council. Supported by the European project SECOQC, funded by the Danish Natural Sciences Research Council. Centrum voor Wiskunde en Informatica

Schaffner, Christian

383

New Bounds for MAX-SAT by Clause Learning Alexander S. Kulikov  

E-Print Network (OSTI)

New Bounds for MAX-SAT by Clause Learning Alexander S. Kulikov Konstantin Kutzkov May 3, 2009 c MAX-SAT for formulas with constant clause density; · 2K/6 , where K is the number of clauses, for MAX-2-SAT; · 2N/6.7 for (n, 3)-MAX-2-SAT. All

384

A New Approach to Proving Upper Bounds for MAX-2-SAT Arist Kojevnikov  

E-Print Network (OSTI)

A New Approach to Proving Upper Bounds for MAX-2-SAT Arist Kojevnikov Alexander S. Kulikov problem (MAX-2-SAT). We present a new 2K/5.5 -time algorithm for MAX-2-SAT, where K is the number formula, for a particular case of MAX-2-SAT, where each variable appears in at most three 2-clauses

385

Memory Bounds for the Distributed Execution of a Hierarchical Synchronous Data-Flow Graph  

E-Print Network (OSTI)

Memory Bounds for the Distributed Execution of a Hierarchical Synchronous Data-Flow Graph Karol analysis tech- nique to define the boundary of shared memory requirements of Multiprocessor System of transformations to the SDF graph so as to reveal its memory characteristics. These transformations produce

Paris-Sud XI, Université de

386

THE CURRENT INDUCED BY A MAGNETIC FIELD IN A PHYSICALLY BOUNDED PLASMA  

Science Journals Connector (OSTI)

...times the term in parentheses, Pai is quite right in neglecting it. But in situations like those arising in dealing with thermonuclear fusion, where the necessary bounding walls are at a low tem- perature so that they only receive ions and electrons and...

Joseph Slepian

1962-01-01T23:59:59.000Z

387

Lieb-Robinson Bounds and the Speed of Light from Topological Order  

E-Print Network (OSTI)

We apply the Lieb-Robinson bounds technique to find the maximum speed of interaction in a spin model with topological order whose low-energy effective theory describes light [see X.-G. Wen, Phys. Rev. B 68, 115413 (2003)]. ...

Hamma, Alioscia

388

A spine proof of a lower bound for a typed branching Robert Hardy and Simon C. Harris  

E-Print Network (OSTI)

of an important and difficult path large-deviations lower bound for a typed branching diffusion as found in Git, J.HarrisA spine proof of a lower bound for a typed branching diffusion Robert Hardy and Simon C. Harris March 8, 2004 Abstract We follow the spine approach as found in Hardy and Harris [6, 8, 7] to define new

Harris, Simon Colin

389

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 10, OCTOBER 2007 1 Distance-Bounding Based Defense Against  

E-Print Network (OSTI)

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 10, OCTOBER 2007 1 Distance-Bounding Based Defense Against Relay Attacks in Wireless Networks Caimu Tang, Member, IEEE, and Dapeng Oliver Wu in this scheme. This scheme also enjoys the distance-bounding property which makes the proposed scheme

Wu, Dapeng Oliver

390

Lieb-Robinson Bounds and the Speed of Light from Topological Order Alioscia Hamma,1,2  

E-Print Network (OSTI)

Lieb-Robinson Bounds and the Speed of Light from Topological Order Alioscia Hamma,1,2 Fotini light [see X.-G. Wen, Phys. Rev. B 68, 115413 (2003)]. The maximum speed of interactions in two dimensions is bounded from above by less than e times the speed of emerging light, giving a strong indication

Severini, Simone

391

Energy dependence of the optical potential of weakly and tightly bound nuclei as projectiles on a medium-mass target  

SciTech Connect

Angular distributions for the elastic scattering of the weakly bound {sup 6,7}Li+{sup 144}Sm systems were measured with high accuracy at bombarding energies from 85% up to 170% of the Coulomb barrier. An optical model analysis was performed, and the relevant parameters of the real and imaginary parts of the optical potential were extracted. The results are compared with those previously published for the tightly bound {sup 12}C+{sup 144}Sm and {sup 16}O+{sup 144}Sm systems. The usual threshold anomaly observed in the behavior of the potential of tightly bound systems was not observed for either weakly bound system. This absence is attributed to the repulsion due to breakup coupling which cancels the attraction arising from couplings with bound channels.

Figueira, J. M.; Arazi, A.; Carnelli, P.; Heimann, D. Martinez; Negri, A. E.; Pacheco, A. J. [Laboratorio Tandar, Comision Nacional de Energia Atomica, B1650KNA San Martin, Buenos Aires (Argentina); Consejo Nacional de Investigaciones Cientificas y Tecnicas, C1033AAJ Ciudad de Buenos Aires (Argentina); Niello, J. O. Fernandez [Laboratorio Tandar, Comision Nacional de Energia Atomica, B1650KNA San Martin, Buenos Aires (Argentina); Consejo Nacional de Investigaciones Cientificas y Tecnicas, C1033AAJ Ciudad de Buenos Aires (Argentina); Escuela de Ciencia y Tecnologia, Universidad de San Martin, B1650BWA San Martin, Buenos Aires (Argentina); Capurro, O. A.; Fimiani, L.; Marti, G. V. [Laboratorio Tandar, Comision Nacional de Energia Atomica, B1650KNA San Martin, Buenos Aires (Argentina); Lubian, J.; Monteiro, D. S.; Gomes, P. R. S. [Instituto de Fisica, Universidade Federal Fluminense, Gragoata, Niteroi, R. J., 24210-340 (Brazil)

2010-02-15T23:59:59.000Z

392

Hawaii-bound in search of global climate data | Argonne National Laboratory  

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

Hawaii-bound in search of global climate data Hawaii-bound in search of global climate data By Brian Grabowski * September 13, 2013 Tweet EmailPrint While the idea of a cruise to Hawaii may sound like paradise, making that same journey 25 times back and forth in a year might start to lose its appeal. But for a climate data-gathering machine called AMF2, perched aboard the ship, every trip is a chance to gather more data that is critical to understanding the Pacific Ocean's role in the global climate. The machine is the Department of Energy's second Atmospheric Radiation Measurement (ARM) mobile facility, operated and managed by Argonne scientists. It carries a suite of instruments to measure properties of clouds, the ocean, precipitation, aerosols, and radiation. Over the summer of 2013, the AMF2 traveled back and forth between Hawaii and Los Angeles,

393

The New Face of Protein-bound Copper: The Type Zero Copper Site  

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

The New Face of Protein-bound Copper: The The New Face of Protein-bound Copper: The Type Zero Copper Site Nature adapts copper ions to a multitude of tasks, yet in doing so forces the metal into only a few different electronic structures [1]. Mononuclear copper sites observed in native proteins either adopt the type 1 (T1) or type 2 (T2) electronic structure. T1 sites exhibit intense charge-transfer absorption giving rise to their alternate title, blue copper sites, due to highly covalent coordination by a thiol ligand donated by a cysteine sidechain in their host proteins. This interaction has consequences for the spectroscopic features of the protein, but more importantly gives rise to dramatic enhancement of electron transfer activity. T2 sites on the other hand resemble more closely aqueous copper(II) ions, and are found in catalytic domains rather than electron transfer sites.

394

Fast multiscale Gaussian beam methods for wave equations in bounded convex domains  

SciTech Connect

Motivated by fast multiscale Gaussian wavepacket transforms and multiscale Gaussian beam methods which were originally designed for pure initial-value problems of wave equations, we develop fast multiscale Gaussian beam methods for initial boundary value problems of wave equations in bounded convex domains in the high frequency regime. To compute the wave propagation in bounded convex domains, we have to take into account reflecting multiscale Gaussian beams, which are accomplished by enforcing reflecting boundary conditions during beam propagation and carrying out suitable reflecting beam summation. To propagate multiscale beams efficiently, we prove that the ratio of the squared magnitude of beam amplitude and the beam width is roughly conserved, and accordingly we propose an effective indicator to identify significant beams. We also prove that the resulting multiscale Gaussian beam methods converge asymptotically. Numerical examples demonstrate the accuracy and efficiency of the method.

Bao, Gang, E-mail: bao@math.msu.edu [Department of Mathematics, Zhejiang University, Hangzhou 310027 (China) [Department of Mathematics, Zhejiang University, Hangzhou 310027 (China); Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States); Lai, Jun, E-mail: laijun@msu.edu [Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States)] [Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States); Qian, Jianliang, E-mail: qian@math.msu.edu [Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States)] [Department of Mathematics, Michigan State University, East Lansing, MI 48824 (United States)

2014-03-15T23:59:59.000Z

395

Bound states of multi-nucleon channels in N_f=2+1 lattice QCD  

E-Print Network (OSTI)

We calculate the energies for multi-nucleon ground states with the nuclear mass number less than or equal to 4 in 2+1 flavor QCD at the lattice spacing of a = 0.09 fm employing a relatively heavy quark mass corresponding to m_pi = 0.51 GeV. We investigate the volume dependence of the energy shift of the ground state and the state of free nucleons to distinguish a bound state from attractive scattering states. From the investigation we conclude that ^4He, ^3He, deuteron and dineutron are bound at m_pi = 0.51 GeV. We compare their binding energies with those in our quenched studies and also with some recent investigations.

Takeshi Yamazaki; Ken-ichi Ishikawa; Yoshinobu Kuramashi; Akira Ukawa

2012-11-19T23:59:59.000Z

396

SMT-Based Bounded Model Checking for Embedded ANSI-C Software  

E-Print Network (OSTI)

Propositional bounded model checking has been applied successfully to verify embedded software but is limited by the increasing propositional formula size and the loss of structure during the translation. These limitations can be reduced by encoding word-level information in theories richer than propositional logic and using SMT solvers for the generated verification conditions. Here, we investigate the application of different SMT solvers to the verification of embedded software written in ANSI-C. We have extended the encodings from previous SMT-based bounded model checkers to provide more accurate support for finite variables, bit-vector operations, arrays, structures, unions and pointers. We have integrated the CVC3, Boolector, and Z3 solvers with the CBMC front-end and evaluated them using both standard software model checking benchmarks and typical embedded applications from telecommunications, control systems and medical devices. The experiments show that our approach can analyze larger problems and sub...

Cordeiro, Lucas; Marques-Silva, Joao

2009-01-01T23:59:59.000Z

397

Exact Green's function for rectangular potentials and its application to quasi-bound states  

E-Print Network (OSTI)

In this work we calculate the exact Green's function for arbitrary rectangular potentials. Specifically we focus on Green's function for rectangular quantum wells enlarging the knowledge of exact solutions for Green's functions and also generalizing and resuming results in the literature. The exact formula has the form of a sum over paths and always can be cast into a closed analytic expression. From the poles and residues of the Green's function the bound states eigenenergies and eigenfunctions with the correct normalization constant are obtained. In order to show the versatility of the method, an application of the Green's function approach to extract information of quasi-bound states in rectangular barriers, where the standard analysis of quantum amplitudes fail, is presented.

Fabiano M. Andrade

2014-03-24T23:59:59.000Z

398

Light-front heavy-quark effective theory and heavy-meson bound states  

Science Journals Connector (OSTI)

The heavy-quark effective theory is developed on the light front. Based on this effective theory, a light-front heavy-meson bound state with definite spin and parity is constructed. Within the effective theory, the Isgur-Wise function is derived in terms of the asymptotic light-front bound state amplitudes in the limit mQ??; the result is a general expression for arbitrary recoil velocities. With the asymptotic form of the BSW amplitudes, the Isgur-Wise function is given by ?(v?v?)=1/v?v?. The slope at the zero-recoil point is ?2=-??(1)=1, in excellent agreement with the recent CLEO result of ?2=1.010.150.09.

Chi-Yee Cheung; Wei-Min Zhang; Guey-Lin Lin

1995-09-01T23:59:59.000Z

399

Stable and 'bounded excursion' gravastars, and black holes in Einstein's theory of gravity  

SciTech Connect

Dynamical models of prototype gravastars are constructed and studied. The models are the Visser-Wiltshire three-layer gravastars, in which an infinitely thin spherical shell of a perfect fluid with the equation of state p = (1-{gamma}){sigma} divides the whole spacetime into two regions, where the internal region is de Sitter, and the external one is Schwarzschild. When {gamma}<1 and {Lambda}{ne}0, it is found that in some cases the models represent stable gravastars, and in some cases they represent 'bounded excursion' stable gravastars, where the thin shell is oscillating between two finite radii, while in some other cases they collapse until the formation of black holes occurs. However, when {gamma}{>=}1, even with {Lambda}{ne}0, only black holes are found. In the phase space, the region for both stable gravastars and 'bounded excursion' gravastars is very small in comparison to that for black holes, although it is not completely empty.

Rocha, P; Da Silva, M F A; Wang, Anzhong [Departamento de Fisica Teorica, Instituto de Fisica, Universidade do Estado do Rio de Janeiro, Rua Sao Francisco Xavier 524, Maracana 20550-900, Rio de Janeiro, RJ (Brazil)] [Departamento de Fisica Teorica, Instituto de Fisica, Universidade do Estado do Rio de Janeiro, Rua Sao Francisco Xavier 524, Maracana 20550-900, Rio de Janeiro, RJ (Brazil); Chan, R, E-mail: pedrosennarocha@gmail.com, E-mail: chan@on.br, E-mail: mfasnic@gmail.com, E-mail: anzhong_wang@baylor.edu [Coordenacao de Astronomia e Astrofisica, Observatorio Nacional, Rua General Jose Cristino, 77, Sao Cristovao 20921-400, Rio de Janeiro, RJ (Brazil)] [Coordenacao de Astronomia e Astrofisica, Observatorio Nacional, Rua General Jose Cristino, 77, Sao Cristovao 20921-400, Rio de Janeiro, RJ (Brazil)

2008-11-15T23:59:59.000Z

400

Lieb-Robinson bounds and the speed of light from topological order  

E-Print Network (OSTI)

We apply the Lieb-Robinson bounds technique to find the maximum speed of interaction in a spin model with topological order whose low-energy effective theory describes light [see X.-G. Wen, \\prb {\\bf 68}, 115413 (2003)]. The maximum speed of interactions is found in two dimensions is bounded from above less than $\\sqrt{2} e$ times the speed of emerging light, giving a strong indication that light is indeed the maximum speed of interactions. This result does not rely on mean field theoretic methods. In higher spatial dimensions, the Lieb-Robinson speed is conjectured to increase linearly with the dimension itself. Implications for the horizon problem in cosmology are discussed.

Alioscia Hamma; Fotini Markopoulou; Isabeau Premont-Schwarz; Simone Severini

2008-08-18T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

Lieb-Robinson Bounds and the Speed of Light from Topological Order  

SciTech Connect

We apply the Lieb-Robinson bounds technique to find the maximum speed of interaction in a spin model with topological order whose low-energy effective theory describes light [see X.-G. Wen, Phys. Rev. B 68, 115413 (2003)]. The maximum speed of interactions in two dimensions is bounded from above by less than e times the speed of emerging light, giving a strong indication that light is indeed the maximum speed of interactions. This result does not rely on mean field theoretic methods. In higher spatial dimensions, the Lieb-Robinson speed is conjectured to increase linearly with the dimension itself. The implications for the horizon problem in cosmology are discussed.

Hamma, Alioscia [Perimeter Institute for Theoretical Physics, 31 Caroline Street North, Waterloo, Ontario N2L 2Y5 (Canada); Massachusetts Institute of Technology, Research Laboratory of Electronics, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (United States); Markopoulou, Fotini; Premont-Schwarz, Isabeau [Perimeter Institute for Theoretical Physics, 31 Caroline Street North, Waterloo, Ontario N2L 2Y5 (Canada); Massachusetts Institute of Technology, Research Laboratory of Electronics, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (United States); Department of Physics, University of Waterloo, Waterloo, Ontario N2L 3G1 (Canada); Severini, Simone [Institute for Quantum Computing and Department of Combinatorics and Optimization, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1 (Canada)

2009-01-09T23:59:59.000Z

402

A Lower Bound for Quantum Search of an Ordered List Harry Buhrman Ronald de Wolfy  

E-Print Network (OSTI)

A Lower Bound for Quantum Search of an Ordered List Harry Buhrman Ronald de Wolfy June 21, 1999 of Amsterdam. E-mail: rdewolf@cwi.nl. 1 #12;A qubit is a superposition 0j0i+ 1j1i of both values of a classical bit. Similarly, a register of m qubits is a superposition j i of all 2m classical bitstrings of m bits

de Wolf, Ronald

403

Non--perturbative bounds on the Higgs mass in the minimal standard model  

E-Print Network (OSTI)

This is a slightly extended version of the talk delivered at the Topical Workshop ``Non perturbative aspects of chiral gauge theories'', Accademia Nazionale dei Lincei, Roma, 9-11 March, 1992. Abstract: The Higgs mass in the minimal standard model is bounded by triviality and vacuum stability in the range 50--100 $GeV$ to 700--900 $GeV$. Recent results will be presented in brief and directions for future work will be proposed.

Herbert Neuberger

1992-05-01T23:59:59.000Z

404

Ul'yanov-type inequality for bounded convex sets in Rd  

Science Journals Connector (OSTI)

For @W@?R^d, a convex bounded set with non-empty interior, the moduli of smoothness @w^r(f,t)"L"""q"("@W") and the norm @?f@?"L"""q"("@W") are estimated by an Ul'yanov-type expression involving @w^r(f,t)"L"""p"("@W") where 0 Keywords: 41A17, 41A25, 41A63, Moduli of smoothness, Realization results, Ul'yanov-type inequality, Whitney-type inequality

Z. Ditzian; A. Prymak

2008-03-01T23:59:59.000Z

405

An ergonomically designed dishwasher for the ambulatory and wheelchair-bound elderly  

E-Print Network (OSTI)

of the Hobart Corporation who provided four dishwashers for the study. The contributions of the members of the industrial engineering gerontology group: Mike Barron, Harvey Bordett, Ellen Gueths, Mary Mills, Paul Nollenhauer, Annie Resendiz, Rina Sadeh... OF SCIENCE December 1985 Ma)or Sub)ect& Industrial Engineering AN ERGONOMICALLY DESIGNED DISHWASHER FOR THE AMBULATORY AND WHEELCHAIR-BOUND ELDERLY A Thesis by DEAUN FAULKNER Approved as to style and content by: rome J Congl on (Ch irman) R. J. pa...

Faulkner, DeAun

1985-01-01T23:59:59.000Z

406

Electroproduction of strangeness on (Lambda)H-3,4 bound states on helium  

SciTech Connect

The A(e,eK+)X reaction has been investigated at Jefferson Laboratory. Data were taken for Q{sup 2} approx. 0.35 GeV{sup 2} at a beam energy of 3.245 GeV for 1H,3He and 4He targets. Evidence for Lambda-hypernuclear bound states is seen for 3,4He targets. This is the first time that the electroproduction of these hypernuclei has been observed.

F. Dohrmann; D. Abbott; A. Ahmidouch; P. Ambrozewicz; C. S. Armstrong; J. Arrington; R. Asaturyan; K. Assamagan; S. Avery; K. Bailey; S. Beedoe; H. Bitao; H. Breuer; D. S. Brown; R. Carlini; J. Cha; N. Chant; E. Christy; A. Cochran; L. Cole; G. Collins; C. Cothran; J. Crowder; W. J. Cummings; S. Danagoulian; F. Duncan; J. Dunne; D. Dutta; T. Eden; M. Elaasar; R. Ent; L. Ewell; H. Fenker; H. T. Fortune; Y. Fujii; L. Gan; H. Gao; K. Garrow; D. F. Geesaman; P. Gueye; K. Gustafsson; K. Hafidi; J. O. Hansen; W. Hinton; H. E. Jackson; H. Juengst; C. Keppel; A. Klein; D. Koltenuk; Y. Liang; J. H. Liu; A. Lung; D. Mack; R. Madey; P. Markowitz; C. J. Martoff; D. Meekins; J. Mitchell; T. Miyoshi; H. Mkrtchyan; R. Mohring; S. K. Mtingwa; B. Mueller; T. G. O'Neill; G. Niculescu; I. Niculescu; D. Potterveld; J. W. Price; B. A. Raue; P. E. Reimer; J. Reinhold; J. Roche; P. Roos; M. Sarsour; Y. Sato; G. Savage; R. Sawafta; R. E. Segel; A. Yu. Semenov; S. Stepanyan; V. Tadevosian; S. Tajima; L. Tang; B. Terburg; A. Uzzle; S. Wood; H. Yamaguchi; C. Yan; C. Yan; L. Yuan; M. Zeier; B. Zeidman; B. Zihlmann

2005-05-01T23:59:59.000Z

407

Reduction of the instantaneous Bethe-Salpeter equation for q-q bound states  

Science Journals Connector (OSTI)

We present a straightforward method to reduce the instantaneous Bethe-Salpeter equation to a set of coupled equations for radial wave functions. In the case of positronium, in particular, the results obtained by Cung et al. follow immediately; our procedure is, however, much more general and is intended to be applied to mesonic bound states where competing models need to be tested. We also briefly comment on the numerical solution of the ensuing equations.

J. -F. Laga

1992-01-01T23:59:59.000Z

408

Direct experimental lower bound on the radiative lifetime of the muon neutrino  

Science Journals Connector (OSTI)

A sensitive search for ?? and ?? decay into photons was performed in a high-intensity beam of neutrinos from ?+ and ?+ decay at rest. An upper limit of 68 possible ?-ray events was established, leading to a lower bound on the radiative lifetime of the muon (anti)neutrino of ?m???15.4 sec/eV (90% C.L.). This result represents more than a factor of 100 improvement over previous direct laboratory searches.

D. A. Krakauer; R. L. Talaga; R. C. Allen; H. H. Chen; R. Hausammann; W. A. Johnson; W. P. Lee; X -Q. Lu; H. J. Mahler; K. C. Wang; H. Yao; T. J. Bowles; R. L. Burman; R. D. Carlini; D. R. F. Cochran; P. J. Doe; J. S. Frank; M. E. Potter; E. Piasetzky; V. D. Sandberg

1991-07-01T23:59:59.000Z

409

Bounds on Spectral Dispersion from Fermi-Detected Gamma Ray Bursts  

Science Journals Connector (OSTI)

Data from four Fermi-detected gamma-ray bursts (GRBs) are used to set limits on spectral dispersion of electromagnetic radiation across the Universe. The analysis focuses on photons recorded above 1GeV for Fermi-detected GRB 080916C, GRB 090510A, GRB 090902B, and GRB 090926A because these high-energy photons yield the tightest bounds on light dispersion. It is shown that significant photon bunches in GRB 090510A, possibly classic GRB pulses, are remarkably brief, an order of magnitude shorter in duration than any previously claimed temporal feature in this energy range. Although conceivably a>3? fluctuation, when taken at face value, these pulses lead to an order of magnitude tightening of prior limits on photon dispersion. Bound of ?c/c<6.9410-21 is thus obtained. Given generic dispersion relations where the time delay is proportional to the photon energy to the first or second power, the most stringent limits on the dispersion strengths were k1<1.6110-5??sec?Gpc-1?GeV-1 and k2<3.5710-7??sec?Gpc-1?GeV-2, respectively. Such limits constrain dispersive effects created, for example, by the spacetime foam of quantum gravity. In the context of quantum gravity, our bounds set M1c2 greater than 525 times the Planck mass, suggesting that spacetime is smooth at energies near and slightly above the Planck mass.

Robert J. Nemiroff; Ryan Connolly; Justin Holmes; Alexander B. Kostinski

2012-06-08T23:59:59.000Z

410

Dispersion and waves in bounded plasmas with subwavelength inhomogeneities: Genesis of MEFIB  

SciTech Connect

Bounded plasma exhibit many interesting behavior that are not found in plasmas of 'infinite' extent such as space and astrophysical plasmas. Our studies have revealed that the dispersion properties of waves in a bounded magnetoplasma deviates considerably from the predictions of the Clemmow-Mullaly-Allis (CMA) model, giving rise to new regimes of wave propagation and absorption. The anisotropy of the medium dictated by the length scales of plasma nonuniformity and magnetostatic field inhomogeneity lead to rotation of the polarization axis an effect similar to the Cotton-Mouton effect in a magneto-optic medium but with distinct differences due to wave induced resonances. This article highlights some of these interesting effects observed experimentally and corroborated with Monte Carlo simulations. One of the principal outcomes of this research is the genesis of a novel multielement focused ion beam (MEFIB) system that utilizes compact bounded plasmas in a minimum B field to provide intense focused ion beams of a variety of elements for new research in nanoscience and technology.

Bhattacharjee, Sudeep [Department of Physics, Indian Institute of Technology - Kanpur, Kanpur 208016, UP (United States)

2014-02-11T23:59:59.000Z

411

Cosmographic bounds on the cosmological deceleration-acceleration transition redshift in $f(\\mathcal{R})$ gravity  

E-Print Network (OSTI)

We examine the observational viability of a class of $f(\\mathcal{R})$ gravity cosmological models. Particular attention is devoted to constraints from the recent observational determination of the redshift of the cosmological deceleration-acceleration transition. Making use of the fact that the Ricci scalar is a function of redshift $z$ in these models, $\\mathcal {R=R}(z)$, and so is $f(z)$, we use cosmography to relate a $f(z)$ test function evaluated at higher $z$ to late-time cosmographic bounds. First, we consider a model independent procedure to build up a numerical $f(z)$ by requiring that at $z=0$ the corresponding cosmological model reduces to standard $\\Lambda$CDM. We then infer late-time observational constraints on $f(z)$ in terms of bounds on the Taylor expansion cosmographic coefficients. In doing so we parameterize possible departures from the standard $\\Lambda$CDM model in terms of a two-parameter logarithmic correction. The physical meaning of the two parameters is also discussed in terms of the post Newtonian approximation. Second, we provide numerical estimates of the cosmographic series terms by using Type Ia supernova apparent magnitude data and Hubble parameter measurements. Finally, we use these estimates to bound the two parameters of the logarithmic correction. We find that the deceleration parameter in our model changes sign at a redshift consistent with what is observed.

Salvatore Capozziello; Omer Farooq; Orlando Luongo; Bharat Ratra

2014-03-06T23:59:59.000Z

412

Bounds on $\\mathcal{N}=1$ Superconformal Theories with Global Symmetries  

E-Print Network (OSTI)

Recently, the conformal-bootstrap has been successfully used to obtain generic bounds on the spectrum and OPE coefficients of unitary conformal field theories. In practice, these bounds are obtained by assuming the existence of a scalar operator in the theory and analyzing the crossing-symmetry constraints of its 4-point function. In $\\mathcal{N}=1$ superconformal theories with a global symmetry there is always a scalar primary operator, which is the top of the current-multiplet. In this paper we analyze the crossing-symmetry constraints of the 4-point function of this operator for $\\mathcal{N}=1$ theories with $SU(N)$ global symmetry. We analyze the current-current OPE, and derive the superconformal blocks, generalizing the work of Fortin, Intrilligator and Stergiou to the non-Abelian case and finding new superconformal blocks which appear in the Abelian case. We then use these results to obtain bounds on the coefficient of the current 2-point function.

Micha Berkooz; Ran Yacoby; Amir Zait

2015-01-04T23:59:59.000Z

413

Identification of proteins bound to a thioaptamer probe on a proteomics array  

SciTech Connect

A rapid method to screen and identify unknown bound proteins to specific nucleic acid probes anchored on ProteinChip array surfaces from crude biological samples has been developed in this paper. It was demonstrated with screening specific binding proteins from LPS-stimulated mouse 70Z/3 pre-B cell nuclear extracts by direct coupling of thioaptamer XBY-S2 to the pre-activated ProteinChip array surfaces. With pre-fractionation of crude nuclear extracts by ion exchange method, specific 'on-chip' captured proteins have been obtained that were pure enough to do 'on-chip' digestion and the subsequent identification of the 'on-chip' bound proteins by microsequencing of the trypsin digested peptide fragments through tandem MS. Five mouse heterogeneous nuclear ribonucleoproteins (hnRNPs) A1, A2/B1, A3, A/B, and D0 were identified. To verify those bound hnRNPs, a novel thioaptamer/antibody sandwich assay provides highly sensitive and selective identification of proteins on ProteinChip arrays.

Wang He [Ciphergen, Inc., Fremont, CA 94555 (United States); Yang, Xianbin [Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555 (United States); Bowick, Gavin C. [Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555 (United States); Herzog, Norbert K. [Department of Pathology, University of Texas Medical Branch, Galveston, TX 77555 (United States); Luxon, Bruce A. [Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555 (United States); Lomas, Lee O. [Ciphergen, Inc., Fremont, CA 94555 (United States)]. E-mail: lomas@ciphergen.com; Gorenstein, David G. [Department of Biochemistry and Molecular Biology, University of Texas Medical Branch, Galveston, TX 77555 (United States)]. E-mail: dggorens@utmb.edu

2006-09-01T23:59:59.000Z

414

Bounded generation of SL(n,A) (after D. Carter, G. Keller and E. Paige).  

E-Print Network (OSTI)

We present unpublished work of D.Carter, G.Keller, and E.Paige on bounded generation in special linear groups. Let n be a positive integer, and let A = O be the ring of integers of an algebraic number field K (or, more generally, let A be a localization O_S.) If n = 2, assume that A has infinitely many units. We show there is a finite-index subgroup H of SL(n,A), such that every matrix in H is a product of a bounded number of elementary matrices. We also show that if T is in SL(n,A), and T is not a scalar matrix, then there is a finite-index, normal subgroup N of SL(n,A), such that every element of N is a product of a bounded number of conjugates of T. For n > 2, these results remain valid when SL(n,A) is replaced by any of its subgroups of finite index.

Dave Witte Morris.

415

Upper bounds on the relative energy difference of pure and mixed Gaussian states with a fixed fidelity  

E-Print Network (OSTI)

Exact and approximate formulas for the upper bound of the relative energy difference of two Gaussian states with the fixed fidelity between them are derived. The reciprocal formulas for the upper bound of the fidelity for the fixed value of the relative energy difference are obtained as well. The bounds appear higher for pure states than for mixed ones, and their maximal values correspond to squeezed vacuum states. In particular, to guarantee the relative energy difference less than 10%, for quite arbitrary Gaussian states, the fidelity between them must exceed the level 0.998866.

V. V. Dodonov

2011-12-10T23:59:59.000Z

416

Heavy-ion fusion cross sections of weakly bound $^{9}$Be on $^{27}$Al, $^{64}$Zn and tightly bound $^{16}$O on $^{64}$Zn target using Coulomb and proximity potential  

E-Print Network (OSTI)

The total fusion cross sections for the fusion of weakly bound $^{9}$Be on $^{27}$Al and $^{64}$Zn targets at near and above the barrier have been calculated using one dimensional barrier penetration model, taking scattering potential as the sum of Coulomb and proximity potential and the calculated values are compared with experimental data. For the purpose of comparison of the fusion of weakly bound projectiles and strongly bound projectiles, the total fusion cross sections for the reaction of tightly bound nucleus $^{16}$O on $^{64}$Zn have also been computed using a similar procedure. The calculated values of total fusion cross sections in all cases are compared with coupled channel calculations using the code CCFULL. The computed cross sections using Coulomb and proximity potential explain the fusion reactions well in both cases of weakly bound and strongly bound projectiles. Reduced reaction cross sections for the systems $^{9}$Be + $^{27}$Al, $^{9}$Be+ $^{64}$Zn and $^{16}$O + $^{64}$Zn have also been described.

K. P. Santhosh; V. Bobby Jose

2013-12-19T23:59:59.000Z

417

Synthetic DNA Replication Bubbles Bound and Unwound with Twofold Symmetry by a Simian Virus 40 T-Antigen Double Hexamer  

Science Journals Connector (OSTI)

ARTICLE ANIMAL VIRUSES Synthetic DNA Replication Bubbles Bound and...examined the binding of TAgDH to synthetic DNA replication bubbles. Tests of...characterized the binding and unwinding of synthetic DNA replication bubbles by the TAgDH...

Natalia V. Smelkova; James A. Borowiec

1998-11-01T23:59:59.000Z

418

Bounding Bus Delay and Noise Effects of On-Chip Inductance Michael Linderman, David Harris, David Diaz  

E-Print Network (OSTI)

Bounding Bus Delay and Noise Effects of On-Chip Inductance Michael Linderman, David Harris, David Diaz Harvey Mudd College 301 E 12th St. Claremont, CA 91711 mlinderman@stanford.edu, david_harris

Harris, David Money

419

Upper bounds on sparticle masses from muon g-2 and the Higgs mass and the complementarity of future colliders  

E-Print Network (OSTI)

Supersymmetric (SUSY) explanation of the discrepancy between the measurement of $(g-2)_\\mu$ and its SM prediction puts strong upper bounds on the chargino and smuon masses. At the same time, lower experimental limits on the chargino and smuon masses, combined with the Higgs mass measurement, lead to an upper bound on the stop masses. The current LHC limits on the chargino and smuon masses (for not too compressed spectrum) set the upper bound on the stop masses of about 10 TeV. The discovery potential of the future lepton and hadron colliders should lead to the discovery of SUSY if it is responsible for the explanation of the $(g-2)_\\mu$ anomaly. This conclusion follows from the fact that the upper bound on the stop masses decreases with the increase of the lower experimental limit on the chargino and smuon masses.

Badziak, Marcin; Lewicki, Marek; Olechowski, Marek; Pokorski, Stefan

2014-01-01T23:59:59.000Z

420

Conduction electrons and the decoherence of impurity-bound electrons in a semiconductor Kuljit S. Virk* and J. E. Sipe  

E-Print Network (OSTI)

, a few mK; this prevents spontaneous spin flips by breaking the degeneracy of bound electron spins.4, this mechanism can be eliminated by using ultra- pure 28 Si crystals. But it would be desirable to operate solid

Sipe,J. E.

Note: This page contains sample records for the topic "usf upward bound" 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

Encapsulation and Characterization of Proton-Bound Amine Homodimers in a Water Soluble, Self-Assembled Supramolecular Host  

SciTech Connect

Cyclic amines can be encapsulated in a water-soluble self-assembled supramolecular host upon protonation. The hydrogen bonding ability of the cyclic amines, as well as the reduced degrees of rotational freedom, allows for the formation of proton-bound homodimers inside of the assembly which are otherwise not observable in aqueous solution. The generality of homodimer formation was explored with small N-alkyl aziridines, azetidines, pyrrolidines and piperidines. Proton-bound homodimer formation is observed for N-alkylaziridines (R = methyl, isopropyl, tert-butyl), N-alkylazetidines (R = isopropyl, tertbutyl), and N-methylpyrrolidine. At high concentration, formation of a proton-bound homotrimer is observed in the case of N-methylaziridine. The homodimers stay intact inside the assembly over a large concentration range, thereby suggesting cooperative encapsulation. Both G3(MP2)B3 and G3B3 calculations of the proton-bound homodimers were used to investigate the enthalpy of the hydrogen bond in the proton-bound homodimers and suggest that the enthalpic gain upon formation of the proton-bound homodimers may drive guest encapsulation.

Pluth, Michael; Fiedler, Dorothea; Mugridge, Jeffrey; Bergman, Robert; Raymond, Kenneth

2008-10-01T23:59:59.000Z

422

Maximal CP and Bounds on the Neutron Electric Dipole Moment from P and CP Breaking  

E-Print Network (OSTI)

We find in theories with spontaneous P and CP violation that symmetries needed to set the tree level strong CP phase to zero can also set all non-zero tree level CP violating phases to the maximal value \\pi / 2 in the symmetry basis simultaneously explaining the smallness of \\bar{\\theta} and the largeness of the CKM CP violating phase. In these models we find the one loop lower bound \\bar{\\theta} > 10^{-11} relevant for early discovery of neutron edm d_n > 10^{-27} ecm. The lower bound relaxes to \\bar{\\theta} > 10^{-13} or d_n > 10^{-29} ecm for the case where the CP phases are non-maximal. Interestingly the spontaneous CP phase appears in the quark sector, not the Higgs sector, and is enabled by a heavy left-right symmetric vectorlike quark family with mass M. These results do not vanish in the decoupling limit of M_{H_2^+} > M \\rightarrow \\infty (where M_{H_2^+} is the mass of heavy Higgs at the parity breaking scale) and the age-old expectation that laws of nature (or its Lagrangian) are parity and matter-antimatter symmetric may be testable by the above predictions and EDM experiments, even if new physics occurs only at see-saw, GUT or Planck scales. There is also a region in parameter space with M_{H_2^+} < M where the above bounds are dampened by the factor (M_{H_2^+}/M)^2. By using flavour symmetries and texture arguments we also make predictions for the CKM phase that arises from the maximal phase on diagonalization to the physical basis. There are no axions predicted in this model.

Ravi Kuchimanchi

2012-03-13T23:59:59.000Z

423

Complete Fusion of Weakly Bound Cluster-Type Nuclei at Near Barrier Energies  

E-Print Network (OSTI)

We consider the influence of breakup channels on the complete fusion of weakly bound cluster-type systems in terms of dynamic polarization potentials. It is argued that the enhancement of the cross section at sub-barrier energies may be consistent with recent experimental observations that nucleon transfer, often leading to breakup, is dominant compared to direct breakup. The main trends of the experimental complete fusion cross sections are analyzed in the framework of the Dynamic Polarization Potential approach. The qualitative conclusions are supported by CDCC calculations including a sequential breakup channel, the one neutron stripping of $^7$Li followed by the breakup of $^6$Li.

M. S. Hussein; P. R. S. Gomes; J. Lubian; R. Linares; L. F. Canto

2013-03-19T23:59:59.000Z

424

Complete Fusion of Weakly Bound Cluster-Type Nuclei at Near Barrier Energies  

E-Print Network (OSTI)

We consider the influence of breakup channels on the complete fusion of weakly bound cluster-type systems in terms of dynamic polarization potentials. It is argued that the enhancement of the cross section at sub-barrier energies may be consistent with recent experimental observations that nucleon transfer, often leading to breakup, is dominant compared to direct breakup. The main trends of the experimental complete fusion cross sections are analyzed in the framework of the Dynamic Polarization Potential approach. The qualitative conclusions are supported by CDCC calculations including a sequential breakup channel, the one neutron stripping of $^7$Li followed by the breakup of $^6$Li.

Hussein, M S; Lubian, J; Linares, R; Canto, L F

2013-01-01T23:59:59.000Z

425

Nuclear Matter Incompressibility Effect on the Cross Section of Fusion Reactions with a weakly bound projectile  

E-Print Network (OSTI)

Fusion reactions with a weakly bound projectile are studied using the double-folding model along with a repulsive interaction modifying term. Using this modified potential, including nuclear matter incompressibility effects, the fusion reaction cross sections and suppression parameters are calculated for 9Be +209Bi,208Pb,29Si and 27Al reactions. The results show that applying these effects at energies near the Coulomb barrier improves the agreement between the calculated and experimental cross sections, and modifies the mean values of the suppression parameter.

Seyyedi, S A

2015-01-01T23:59:59.000Z

426

Exploring Fusion at Extreme Sub-Barrier Energies with Weakly Bound Nuclei  

SciTech Connect

Results of measurement of residues formed in fusion of {sup 6}Li with {sup 198}Pt in the energy range of 0.68bound projectile confront the current understanding of the fusion hindrance at these low energies, underlying the role of internal reorganization on the dynamical path towards fusion.

Shrivastava, A. [Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400085 (India); GANIL, CEA/DSM-CNRS/IN2P3, Boulevard Henri Becquerel, BP 55027, F-14076 Caen Cedex 5 (France); Navin, A.; Lemasson, A.; Rejmund, M. [GANIL, CEA/DSM-CNRS/IN2P3, Boulevard Henri Becquerel, BP 55027, F-14076 Caen Cedex 5 (France); Ramachandran, K.; Chatterjee, A.; Kailas, S.; Mahata, K.; Rout, P. C. [Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400085 (India); Nanal, V.; Pillay, R. G. [DNAP, Tata Institute of Fundamental Research, Mumbai 400005 (India); Hagino, K. [Department of Physics, Tohuku University, Sendai 980-8578 (Japan); Ichikawa, T. [Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502 (Japan); Bhattacharyya, S. [Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata 700064 (India); Parkar, V. V. [Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai 400085 (India); DNAP, Tata Institute of Fundamental Research, Mumbai 400005 (India)

2009-12-04T23:59:59.000Z

427

(He-3,d) Reaction to Bound and Quasibound Levels in Tc-93  

E-Print Network (OSTI)

. W. Nestor, Jr. , T. C. Tucker, and F. B. Malik, Phys. Rev. 169, 27 (1968). PHYSICAL REVIEW C VOLUME 4, NUMBER 2 AUGUST 1971 ( He, d) Reaction to Bound and Quasibound Levels in Tc~ R. L. Kozub and D. H. Youngblood Cyclotron Institute, Texas A 5 M... University, College Station, Texas 77843 (Received 1 March 1971) The Mo( He, d)9 Tc reaction has been studied at 35-MeV bombarding energy. Several T& levels are observed belo~ 6-MeV excitation energy, and evidence is presented for sizable p ?, and f5y2...

Kozub, R. L.; Youngblood, David H.

1971-01-01T23:59:59.000Z

428

A network transformation procedure for finding minimal-cost flows in networks with variable lower bounds  

E-Print Network (OSTI)

. 20 1. 08 2. 16 2. 16 0. 90 2. 40 7. 20 1. 87 4. 50 7. 50 15. 75 10 14 16 14 18 18 19 1. 25 1. 24 1. 75 1. 95 1. 95 1. 62 4. 55 5. 85 1. 92 2. 70 3. 08 6. 93 7. 32 10 12 1. 00 1. 20 1. 60 2. 38 2. 72 2. 72 3. 40... support, encouragement, understanding, patience and love. TABLE OF CONTI~ITS CHAPTER I INTRODUCTION I I PREVIOUS SOLUTION METHODS 2-1. Mixed Integer Linear Programming 2 2. Branch-and-Bound Procedure III PROPOSED METHODOLOGY 3-1. Network...

Kim, Seongbae

2012-06-07T23:59:59.000Z

429

Nuclear Matter Incompressibility Effect on the Cross Section of Fusion Reactions with a weakly bound projectile  

E-Print Network (OSTI)

Fusion reactions with a weakly bound projectile are studied using the double-folding model along with a repulsive interaction modifying term. Using this modified potential, including nuclear matter incompressibility effects, the fusion reaction cross sections and suppression parameters are calculated for 9Be +209Bi,208Pb,29Si and 27Al reactions. The results show that applying these effects at energies near the Coulomb barrier improves the agreement between the calculated and experimental cross sections, and modifies the mean values of the suppression parameter.

S. A. Seyyedi; H. Golnarkar

2015-01-19T23:59:59.000Z

430

Non-touching nanoparticle diclusters bound by repulsive and attractive Casimir forces  

E-Print Network (OSTI)

We present a scheme for obtaining stable Casimir suspension of dielectric nontouching objects immersed in a fluid, validated here in various geometries consisting of ethanol-separated dielectric spheres and semi-infinite slabs. Stability is induced by the dispersion properties of real dielectric (monolithic) materials. A consequence of this effect is the possibility of stable configurations (clusters) of compact objects, which we illustrate via a "molecular" two-sphere dicluster geometry consiting of two bound spheres levitated above a gold slab. Our calculations also reveal a strong interplay between material and geometric dispersion, and this is exemplified by the qualitatively different stability behavior observed in planar versus spherical geometries.

Alejandro W. Rodriguez; Alexander P. McCauley; David Woolf; Federico Capasso; John D. Joannopoulos; Steven G. Johnson

2009-12-11T23:59:59.000Z

431

Solar-bound weakly interacting massive particles: a no-frills phenomenology  

E-Print Network (OSTI)

The case for a stable population of solar-bound Earth-crossing Weakly Interacting Massive Particles (WIMPs) is reviewed. A practical general expression for their speed distribution in the laboratory frame is derived under basic assumptions. If such a population exists -even with a conservative phase-space density-, the next generation of large-mass, low-threshold underground bolometers should bring about a sizable enhancement in WIMP sensitivity. Finally, a characteristic yearly modulation in their recoil signal, arising from the ellipticity of the Earth's orbit, is presented.

Juan I. Collar

1999-01-22T23:59:59.000Z

432

Sustainability of multi-field inflation and bound on string scale  

E-Print Network (OSTI)

We study the effects of the interaction terms between the inflaton fields on the inflationary dynamics in multi-field models. With power law type potential and interactions, the total number of e-folds may get considerably reduced and can lead to unacceptably short period of inflation. Also we point out that this can place a bound on the characteristic scale of the underlying theory such as string theory. Using a simple multi-field chaotic inflation model from string theory, the string scale is constrained to be larger than the scale of grand unified theory.

Jinn-Ouk Gong

2009-02-11T23:59:59.000Z

433

Structure of the Ebola Virus Glycoprotein Bound to an Antibody from a Human  

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

Structure of the Ebola Virus Glycoprotein Bound to an Antibody from a Human Survivor Print Structure of the Ebola Virus Glycoprotein Bound to an Antibody from a Human Survivor Print Ebolavirus, one of two members of the family of filoviruses, causes a severe hemorrhagic fever with 50-90% human mortality. That no vaccines or treatments are yet available combined with the frequent re-emergence of the virus, its high prevalence among wildlife, and ease of importation of the virus make it a significant public health concern. A team of researchers from the Scripps Research Institute, using diffraction data collected at ALS Beamline 5.0.2, has recently determined the crystal structure of an oligomeric glycoprotein from the viral surface in complex with a rare antibody derived from a human survivor. This work explains how the glycoprotein, termed GP, mediates recognition of the host cell, drives fusion of the viral and host membranes (necessary for viral entry into the host), and masks itself from immune surveillance. The structure also explains why antibodies that neutralize the virus are so rare, identifies the very few sites to which a neutralizing antibody might bind, and thus, provides templates for vaccines and antibodies against the virus.

434

Structure of the Ebola Virus Glycoprotein Bound to an Antibody from a Human  

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

Structure of the Ebola Virus Structure of the Ebola Virus Glycoprotein Bound to an Antibody from a Human Survivor Structure of the Ebola Virus Glycoprotein Bound to an Antibody from a Human Survivor Print Wednesday, 26 November 2008 00:00 Ebolavirus, one of two members of the family of filoviruses, causes a severe hemorrhagic fever with 50-90% human mortality. That no vaccines or treatments are yet available combined with the frequent re-emergence of the virus, its high prevalence among wildlife, and ease of importation of the virus make it a significant public health concern. A team of researchers from the Scripps Research Institute, using diffraction data collected at ALS Beamline 5.0.2, has recently determined the crystal structure of an oligomeric glycoprotein from the viral surface in complex with a rare antibody derived from a human survivor. This work explains how the glycoprotein, termed GP, mediates recognition of the host cell, drives fusion of the viral and host membranes (necessary for viral entry into the host), and masks itself from immune surveillance. The structure also explains why antibodies that neutralize the virus are so rare, identifies the very few sites to which a neutralizing antibody might bind, and thus, provides templates for vaccines and antibodies against the virus.

435

Coupled segmentation of nuclear and membrane-bound macromolecules through voting and multiphase level set  

Science Journals Connector (OSTI)

Abstract Membrane-bound macromolecules play an important role in tissue architecture and cellcell communication, and is regulated by almost one-third of the genome. At the optical scale, one group of membrane proteins expresses themselves as linear structures along the cell surface boundaries, while others are sequestered; and this paper targets the former group. Segmentation of these membrane proteins on a cell-by-cell basis enables the quantitative assessment of localization for comparative analysis. However, such membrane proteins typically lack continuity, and their intensity distributions are often very heterogeneous; moreover, nuclei can form large clump, which further impedes the quantification of membrane signals on a cell-by-cell basis. To tackle these problems, we introduce a three-step process to (i) regularize the membrane signal through iterative tangential voting, (ii) constrain the location of surface proteins by nuclear features, where clumps of nuclei are segmented through a delaunay triangulation approach, and (iii) assign membrane-bound macromolecules to individual cells through an application of multi-phase geodesic level-set. We have validated our method using both synthetic data and a dataset of 200 images, and are able to demonstrate the efficacy of our approach with superior performance. Supplementary Information: One online video example can be found with: http://vision.lbl.gov/People/hang/evolving_fronts.gif

Hang Chang; Quan Wen; Bahram Parvin

2015-01-01T23:59:59.000Z

436

BPS-like bound and thermodynamics of the charged BTZ black hole  

SciTech Connect

The charged Banados-Teitelboim-Zanelli (BTZ) black hole is plagued by several pathologies: (a) Divergent boundary terms are present in the action; hence, we have a divergent black-hole mass. (b) Once a finite, renormalized, mass M is defined, black-hole states exist for arbitrarily negative values of M. (c) There is no upper bound on the charge Q. We show that these pathological features are an artifact of the renormalization procedure. They can be completely removed by using an alternative renormalization scheme leading to a different definition M{sub 0} of the black-hole mass, which is the total energy inside the horizon. The new mass satisfies a BPS-like bound M{sub 0}{>=}({pi}/2)Q{sup 2}, and the heat capacity of the hole is positive. We also discuss the black-hole thermodynamics that arises when M{sub 0} is interpreted as the internal energy of the system. We show, using three independent approaches (black-hole thermodynamics, Einstein equations, and Euclidean action formulation), that M{sub 0} satisfies the first law if a term describing the mechanical work done by the electrostatic pressure is introduced.

Cadoni, Mariano; Monni, Cristina [Dipartimento di Fisica, Universita di Cagliari and INFN, Sezione di Cagliari, Cittadella Universitaria, 09042 Monserrato (Italy)

2009-07-15T23:59:59.000Z

437

Consideration of critically when directly disposing highly enriched spent nuclear fuel in unsaturated tuff: Bounding estimates  

SciTech Connect

This report presents one of 2 approaches (bounding calculations) which were used in a 1994 study to examine the possibility of a criticality in a repository. Bounding probabilities, although rough, point to the difficulty of creating conditions under which a critical mass could be assembled (container corrosion, separation of neutron absorbers from fissile material, collapse or precipitation of fissile material) and how significant the geochemical and hydrologic phenomena are. The study could not conceive of a mechanism consistent with conditions under which an atomic explosion could occur. Should a criticality occur in or near a container in the future, boundary consequence calculations showed that fissions from one critical event (<10{sup 20} fissions, if similar to aqueous and metal accidents and experiments) are quite small compared to the amount of fissions represented by the spent fuel itself. If it is assumed that the containers necessary to hold the highly enriched spent fuel went critical once per day for 1 million years, creating an energy release of about 10{sup 20} fissions, the number of fissions equals about 10{sup 28}, which corresponds to only 1% of the fission inventory in a repository containing 70,000 metric tons of heavy metal, the expected size for the proposed repository at Yucca Mountain, Nevada.

Rechard, R.P.; Tierney, M.S.; Sanchez, L.C.; Martell, M.-A.

1996-05-01T23:59:59.000Z

438

Desorption by phonon cascades for gas-solid systems with many physisorbed surface bound states  

Science Journals Connector (OSTI)

We give the extension of our quantum-statistical theory of desorption for systems with many physisorbed bound states in the surface potential. Rate equations are set up and the desorption time td is properly identified as the smallest eigenvalue of the matrix of transition probabilities. The latter are calculated exactly in second-order perturbation theory for a surface Morse potential. We show that desorption in weakly coupled systems with many bound states proceeds predominantly through one-phonon cascades. Two-phonon contributions are shown to be small. Desorption times are calculated for the He-LiF, He-NaF, He-graphite, H-NaCl, He-Ar, and Xe-W systems. The temperature regime over which a Frenkel-Arrhenius parametrization td=td0exp(QkBT) can be invoked is given. Our theory which is essentially parameter-free produces prefactors td0 in the whole experimental range of physisorption from 10-7 to 10-14 sec.

Z. W. Gortel; H. J. Kreuzer; R. Teshima

1980-12-15T23:59:59.000Z

439

Structure of the Ebola virus glycoprotein bound to an antibody from a human  

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

8 8 Structure of the Ebola virus glycoprotein bound to an antibody from a human survivor Ebolavirus: The ebolavirus causes a severe hemorrhagic fever with 50-90% lethality for which no vaccines or treatments are yet available. The more frequent re-emergence of the virus, its high prevalence among wildlife, and ease of importation of the virus make it a significant public health concern. A team of researchers have recently determined the crystal structure of the oligomeric, viral surface glycoprotein in complex with a rare antibody derived from a human survivor. This work explains how the glycoprotein, termed GP, mediates host recognition, drives fusion of the viral and host membranes and masks itself from immune surveillance. The structure also explains why antibodies that neutralize the virus are so rare, identifies the very few sites to which a neutralizing antibody might bind, and thus, provides templates for vaccines and antibodies against the virus.

440

Bounds on the locating-total domination number of a tree  

Science Journals Connector (OSTI)

In this paper, we continue the study of locating-total domination in graphs, introduced by Haynes etal. [T.W. Haynes, M.A. Henning, J. Howard, Locating and total dominating sets in trees, Discrete Applied Mathematics 154 (8) (2006) 12931300]. A total dominating set S in a graph G = ( V , E ) is a locating-total dominating set of G if, for every pair of distinct vertices u and v in V ? S , N G ( u ) ? S ? N G ( v ) ? S . The minimum cardinality of a locating-total dominating set is the locating-total domination number ? t L ( G ) . We show that, for a tree T of order n ? 3 with l leaves and s support vertices, n + l + 1 2 ? s ? ? t L ( T ) ? n + l 2 . Moreover, we constructively characterize the extremal trees achieving these bounds.

Xue-gang Chen; Moo Young Sohn

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

Structural Diversity in Free and Bound States of Intrinsically Disordered Protein Phosphatase 1 Regulators  

SciTech Connect

Complete folding is not a prerequisite for protein function, as disordered and partially folded states of proteins frequently perform essential biological functions. In order to understand their functions at the molecular level, we utilized diverse experimental measurements to calculate ensemble models of three nonhomologous, intrinsically disordered proteins: I-2, spinophilin, and DARPP-32, which bind to and regulate protein phosphatase 1 (PP1). The models demonstrate that these proteins have dissimilar propensities for secondary and tertiary structure in their unbound forms. Direct comparison of these ensemble models with recently determined PP1 complex structures suggests a significant role for transient, preformed structure in the interactions of these proteins with PP1. Finally, we generated an ensemble model of partially disordered I-2 bound to PP1 that provides insight into the relationship between flexibility and biological function in this dynamic complex.

Marsh, J.A.; Allaire, M.; Dancheck, B.; Ragusa, M.J.; Forman-Kay, J.D.; Peti, Wolfgang

2010-09-08T23:59:59.000Z

442

Asymmetry of rotational catalysis of single membrane-bound F0F1-ATP synthase  

E-Print Network (OSTI)

Synthesis of the cellular 'energy currency' ATP is catalyzed by membrane-bound F0F1-ATP synthases. The chemical reaction at three binding sites in the F1 part is coupled to proton translocation through the membrane-integrated F0 part by an internal rotation of subunits. We examined the rotary movements of the epsilon-subunit of the 'rotor' with respect to the b-subunits of the 'stator' by single-molecule fluorescence resonance energy transfer (FRET). Rotation of epsilon during ATP hydrolysis is divided into three major steps with constant FRET level corresponding to three binding sites. Different catalytic activities of the individual binding sites were observed depending on the relative orientation of the 'rotor'. Computer simulations of the FRET signals and non-equally distributed orientations of epsilon strongly corroborate asymmetry of catalysis in F0F1-ATP synthase.

Zarrabi, Nawid; Diez, Manuel; Graeber, Peter; Wrachtrup, Joerg; Boersch, Michael

2007-01-01T23:59:59.000Z

443

Upper Bound on the Hadronic Light-By-Light Contribution to the Muon g-2  

Science Journals Connector (OSTI)

There are indications that hadronic loops in some electroweak observables are almost saturated by parton level effects. Taking this as the hypothesis for this work, we propose a genuine parton level estimate of the hadronic light-by-light contribution to the anomalous magnetic moment of the muon, a?LBL(had). Our quark mass definitions and values are motivated in detail, and the simplicity of our approach allows for a transparent error estimate. For infinitely heavy quarks our treatment is exact, while for asymptotically small quark masses a?LBL(had) is overestimated. Interpolating, this suggests quoting an upper bound. We obtain a?LBL(had)<1.5910-9 (95% C.L.).

Jens Erler and Genaro Toledo Snchez

2006-10-18T23:59:59.000Z

444

Upper bounds on parity-violating ?-ray asymmetries in compound nuclei from polarized cold neutron capture  

Science Journals Connector (OSTI)

Parity-odd asymmetries in the electromagnetic decays of compound nuclei can sometimes be amplified above values expected from simple dimensional estimates by the complexity of compound nuclear states. Using a statistical approach, we estimate the root-mean-square of the distribution of expected parity-odd correlations s?nk??, where s?n is the neutron spin and k?? is the momentum of the ?, in the integrated ? spectrum from the capture of cold polarized neutrons on Al, Cu, and In. We present measurements of the asymmetries in these and other nuclei. Based on our calculations, large enhancements of asymmetries were not predicted for the studied nuclei and the statistical estimates are consistent with our measured upper bounds on the asymmetries.

M. T. Gericke et al. (NPDGamma Collaboration)

2006-12-19T23:59:59.000Z

445

Bound electronic states in a statically screened electric-dipole potential  

Science Journals Connector (OSTI)

The problem of the minimum value of the dipole moment needed to assure the existence of a bound electronic state has been addressed for the electrostatically screened Coulomb interaction of the Yukawa type. Our variational calculation demonstrates that the value of the minimum dipole moment increases as the screening parameter increases. More interestingly, we have found that the dipoles length has a remarkable effect on the minimum dipole moment; a feature not found for the unscreened case. This effect yields a rapid increase of the value of the minimum dipole moment, particularly for large values of the screening parameter, with the increasing dipole moments length. 1996 The American Physical Society.

J. M. Ugalde and C. Sarasola

1996-10-01T23:59:59.000Z

446

Non-Born-Oppenheimer variational calculations of HT{sup +} bound states with zero angular momentum  

SciTech Connect

We report fully nonadiabatic calculations of all rotationless bound states of HT{sup +} molecular ion (t{sup +}p{sup +}e{sup -}) carried out in the framework of the variational method. We show that, in all the states, except the two highest ones, the bond in the system can be described as covalent. In the highest two states the bond becomes essentially ionic and HT{sup +} can be described as a T+H{sup +} complex. The wave function of the system was expanded in terms of spherically symmetric, explicitly correlated Gaussian functions with preexponential multipliers consisting of powers of the internuclear distance. Apart from the total energies of the states, we have calculated the expectation values of the t-p, t-e, and p-e interparticle distances, their squares, and the nucleus-nucleus correlation functions.

Bednarz, Eugeniusz; Bubin, Sergiy; Adamowicz, Ludwik [Department of Chemistry, University of Arizona, Tucson, Arizona 85721 (United States); Department of Physics, University of Arizona, Tucson, Arizona 85721 and Department of Chemistry, University of Arizona, Tucson, Arizona 85721 (United States); Department of Chemistry, University of Arizona, Tucson, Arizona 85721 and Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)

2005-04-22T23:59:59.000Z

447

Donor bound excitons in ZnSe nanoresonators - Applications in quantum information science  

SciTech Connect

Here we summarize the advantages of excitons bound to isolated fluorine donor in ZnSe/ZnMgSe quantum well nano-structures. Devices based on these semiconductors, are particularly suited to implement concepts of the optical manipulation of quantum states in solid-state material. The fluorine donor in ZnSe provides a physical qubit with potential advantages over previously researched qubits. In this context we show several initial demonstrations of devices, such as a low-threshold microdisk laser and an indistinguishable single photon source. Additionally we demonstrate the realization of a controllable three-level-system qubit consisting of a single Fluorine donor in a ZnSe nano-pillar, which provides an optical accessible single electon spin qubit.

Pawlis, A. [Department of Physics, University of Paderborn, Warburger Str. 100, 33098 Paderborn, Germany and Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305-4088 (United States); Lischka, K. [Department of Physics, University of Paderborn, Warburger Str. 100, 33098 Paderborn (Germany); Sanaka, K.; Yamamoto, Y. [Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305-4088, USA and National Institute of Informatics, 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8430 (Japan); Sleiter, D. [Edward L. Ginzton Laboratory, Stanford University, Stanford, California 94305-4088 (United States)

2014-05-15T23:59:59.000Z

448

Interacting dark fluid in the universe bounded by event horizon : A non-equilibrium prescription  

E-Print Network (OSTI)

A non-equilibrium thermodynamic analysis has been done for the interacting dark fluid in the universe bounded by the event horizon.From observational evidences it is assumed that at present the matter in the universe is dominated by two dark sectors-dark matter and dark energy. The mutual interaction among them results in spontaneous heat flow between the horizon and the fluid system and the thermal equilibrium will no longer hold.In the present work,the dark matter is chosen in the form of dust while the dark energy is chosen as a perfect fluid with constant equation in one case and holographic dark energy model is chosen in the other.Finally,validity of the generalized second law of thermodynamics has been examined in both cases.

Subenoy Chakraborty; Atreyee Biswas

2014-06-27T23:59:59.000Z

449

Theory and Modeling of Weakly Bound/Physisorbed Materials for Hydrogen Storage  

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

and Modeling of and Modeling of Weakly Bound/Physisorbed Materials for Hydrogen Storage Andrew Williamson Quantum Simulations Group Lawrence Livermore National Laboratory Tadashi Ogitsu Lawrence Livermore National Laboratory Yong-Hyun Kim, Mike Heben, and Shengbai Zhang National Renewable Energy Laboratory UCRL-209054 This work was performed under the auspices of the U.S. Department of Energy by the University of California, Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48. Outline * Storage by physisorption: - CNT, fullerenes, carbon aerogels - Doping, Decorating, Charging * Accuracy of Methods: DFT, QMC and Quantum Chemistry - Van der Waals interactions - * Use of DFT to screen for new compounds - 2 binding to doped fullerenes * LDA, GGA and ad-hoc corrections to pseudopotentials

450

An upper bound on the second order asymptotic expansion for the quantum communication cost of state redistribution  

E-Print Network (OSTI)

State redistribution is the protocol in which, given an arbitrary tripartite quantum state, with two of the subsystems initially being with Alice and one being with Bob, the goal is for Alice to send one of her subsystems to Bob, possibly with the help of prior shared entanglement. We derive an upper bound on the second order asymptotic expansion for the quantum communication cost of achieving state redistribution with a given finite accuracy. In proving our result, we also obtain an upper bound on the quantum communication cost of this protocol in the one-shot setting, by using the protocol of coherent state merging as a primitive.

Nilanjana Datta; Min-Hsiu Hsieh; Jonathan Oppenheim

2014-09-15T23:59:59.000Z

451

Bounds on the density of sources of ultra-high energy cosmic rays from the Pierre Auger Observatory  

SciTech Connect

We derive lower bounds on the density of sources of ultra-high energy cosmic rays from the lack of significant clustering in the arrival directions of the highest energy events detected at the Pierre Auger Observatory. The density of uniformly distributed sources of equal intrinsic intensity was found to be larger than ? (0.06?5) 10{sup ?4} Mpc{sup ?3} at 95% CL, depending on the magnitude of the magnetic deflections. Similar bounds, in the range (0.2?7) 10{sup ?4} Mpc{sup ?3}, were obtained for sources following the local matter distribution.

Collaboration: Pierre Auger Collaboration

2013-05-01T23:59:59.000Z

452

Exam 2A Phys 111 Section_____ _ Fall 2006 Name____________________________________________ A The exam is closed book and closed notes.  

E-Print Network (OSTI)

kx2 , Ugi + Usi + KI = Ugf + Usf + Kf Ugi + Usi + KI + Wnc = Ugf + Usf + Kf momentum: p = mv; Pi = Pf

Janow, Rich

453

Selection of optimal AR spectral estimation method for internal carotid arterial Doppler signals using Cramer-Rao bound  

Science Journals Connector (OSTI)

In this study, Doppler signals recorded from internal carotid artery of 80 subjects were processed by PC-computer using autoregressive method and Doppler power spectra were obtained. The parameters of autoregressive method were estimated by different ... Keywords: AR spectral estimation method, Cramer-Rao bound, Doppler signal, Internal carotid artery, Power spectral density

Elif Derya beyli; ?nan Gler

2004-10-01T23:59:59.000Z

454

Two-Dimensional Continuous Extraction in Multiphase Lipid Bilayers To Separate, Enrich, and Sort Membrane-Bound Species  

E-Print Network (OSTI)

Membrane-Bound Species Ling Chao,, Mark J. Richards, Chih-Yun Hsia, and Susan Daniel* School of Chemical yield of each species. This new procedure sorts membrane species on the basis of chemical properties denaturation. This platform could facilitate the separation and identification of lipid membrane domain

Daniel, Susan

455

Membrane Bound: C2-Domain Abscisic Acid-Related Proteins Help Abscisic Acid Receptors Get Where They Need to Go  

Science Journals Connector (OSTI)

...Membrane Bound: C2-Domain Abscisic Acid-Related Proteins Help Abscisic Acid Receptors Get Where They Need to Go Jennifer Lockhart jlockhart@aspb.org Science Editor www.plantcell.org/cgi/doi/10.1105/tpc.114.134411

Jennifer Lockhart

2014-12-02T23:59:59.000Z

456

The Value of Knowing a Demand Curve: Bounds on Regret for On-line Posted-Price  

E-Print Network (OSTI)

The Value of Knowing a Demand Curve: Bounds on Regret for On-line Posted-Price Auctions PRELIMINARY sequentially with a popu- lation of n buyers through an on-line posted-price auction mechanism, a paradigm names a price between 0 and 1; the buyer decides whether or not to buy the item at the specified price

Kleinberg, Robert D.

457

Resonant Raman scattering on free and bound excitons in GaN A. Kaschner,* A. Hoffmann, and C. Thomsen  

E-Print Network (OSTI)

scattering RRS has been studied for a variety of semiconductor materials, such as CdS,1 GaP,2 and GaAs,3 since the late 1960. In particular, effects of RRS on free and bound excitons in CdS were extensively investigated4­6 because crystals of high structural quality were synthesized and intentionally doped

Nabben, Reinhard

458

A Two-site Kinetic Mechanism for ATP Binding and Hydrolysis by E. coli Rep Helicase Dimer Bound to a  

E-Print Network (OSTI)

A Two-site Kinetic Mechanism for ATP Binding and Hydrolysis by E. coli Rep Helicase Dimer Bound that are coupled to ATP binding and hydrolysis. We have investi- gated the kinetic mechanism of ATP binding 17(?2) s?1 ; KM 3 mM), pre-steady-state studies provide evidence for a two-ATP site mechanism

Lohman, Timothy M.

459

A Distributed Protocol for the Bounded-Hops Converge-cast in Ad-Hoc Networks0  

E-Print Network (OSTI)

A Distributed Protocol for the Bounded-Hops Converge-cast in Ad-Hoc Networks0 Andrea E. F. Clementi (centralized) heuristics. 1 Introduction An ad-hoc (wireless) network consists of a set of radio stations connected by wireless links. In an ad hoc network, a transmission range is assigned to every station

Rossi, Gianluca

460

Quasi-bound levels, transmission and resonant tunneling in heterostructures with double and multi rectangular, trapezoidal, triangular barriers  

Science Journals Connector (OSTI)

In this work quasi-bound level energies, energy dependence of the transmission coefficients and negative differential resistance properties are studied in double and multi-barrier structures. Various barrier types such as rectangular, trapezoidal and ... Keywords: Double-barrier structures, Peak to valley ratio, Resonant tunneling diodes, Trapezoidal barrier, Triangular barrier

F. Nutku

2014-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "usf upward bound" 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

Predicting hydraulic tensile fracture spacing in strata-bound systems$ C.I. McDermott n  

E-Print Network (OSTI)

Predicting hydraulic tensile fracture spacing in strata-bound systems$ C.I. McDermott n , K June 2013 Available online 15 July 2013 Keywords: Hydraulic fracturing Fracture spacing CO2 analogue that hydraulic fracturing can be expected in the lower layers of a caprock after a relatively short period

Haszeldine, Stuart

462

Close Identity between Alternatively Folded State N2 of Ubiquitin and the Conformation of the Protein Bound to the Ubiquitin-  

E-Print Network (OSTI)

.5 Because the EROS ensemble covers the structural heterogeneity of the protein seen in complex of the Protein Bound to the Ubiquitin- Activating Enzyme Soichiro Kitazawa, Tomoshi Kameda, Ayumi Kumo, Maho Yagi, such as the ubiquitin-proteasomal degradation of damaged proteins.1,2 By solution nuclear magnetic resonance (NMR

Williamson, Mike P.

463

The Conformation of Bound GMPPNP Suggests a Mechanism for Gating the Active Site of the SRP \\{GTPase\\}  

Science Journals Connector (OSTI)

Background: The signal recognition particle (SRP) is a phylogenetically conserved ribonucleoprotein that mediates cotranslational targeting of secreted and membrane proteins to the membrane. Targeting is regulated by GTP binding and hydrolysis events that require direct interaction between structurally homologous NG \\{GTPase\\} domains of the SRP signal recognition subunit and its membrane-associated receptor, SR?. Structures of both the apo and GDP bound NG domains of the prokaryotic SRP54 homolog, Ffh, and the prokaryotic receptor homolog, FtsY, have been determined. The structural basis for the GTP-dependent interaction between the two proteins, however, remains unknown. Results: We report here two structures of the NG \\{GTPase\\} of Ffh from Thermus aquaticus bound to the nonhydrolyzable GTP analog GMPPNP. Both structures reveal an unexpected binding mode in which the ?-phosphate is kinked away from the binding site and magnesium is not bound. Binding of the GTP analog in the canonical conformation found in other \\{GTPase\\} structures is precluded by constriction of the phosphate binding P loop. The structural difference between the Ffh complex and other \\{GTPases\\} suggests a specific conformational change that must accompany movement of the nucleotide from an inactive to an active binding mode. Conclusions: Conserved side chains of the \\{GTPase\\} sequence motifs unique to the SRP subfamily may function to gate formation of the active GTP bound conformation. Exposed hydrophobic residues provide an interaction surface that may allow regulation of the GTP binding conformation, and thus activation of the GTPase, during the association of SRP with its receptor.

Savita Padmanabhan; Douglas M. Freymann

2001-01-01T23:59:59.000Z

464

Robust nonlinear model predictive control for nuclear power plants in load following operations with bounded xenon oscillations  

Science Journals Connector (OSTI)

One of the important operations in nuclear power plants is load-following in which imbalance of axial power distribution induces xenon oscillations. These oscillations must be maintained within acceptable limits otherwise the nuclear power plant could become unstable. Therefore, bounded xenon oscillation considered to be a constraint for the load-following operation. In this paper, a robust nonlinear model predictive control for the load-following operation problem is proposed that ensures xenon oscillations are kept bounded within acceptable limits. The proposed controller uses constant axial offset (AO) strategy to maintain xenon oscillations to be bounded. The constant AO is a robust state constraint for load-following problem. The controller imposes restricted state constraints on the predicted trajectory during optimization which guarantees robust satisfaction of state constraints without restoring to a minmax optimization problem. Simulation results show that the proposed controller for the load-following operation is so effective so that the xenon oscillations kept bounded in the given region.

H. Eliasi; M.B. Menhaj; H. Davilu

2011-01-01T23:59:59.000Z

465

Sliding Mode Control for Pressurized-Water Nuclear Reactors in load following operations with bounded xenon oscillations  

Science Journals Connector (OSTI)

Abstract One of the important operations in nuclear power plants is load-following in which imbalance of axial power distribution induces xenon oscillations. These oscillations must be maintained within acceptable limits otherwise the nuclear power plant could become unstable. Therefore, bounded xenon oscillation considered to be a constraint for the load-following operation. In this paper, sliding mode control (SMC) which is a robust nonlinear controller is designed to control the Pressurized-Water Nuclear Reactor (PWR) power for the load-following operation problem that ensures xenon oscillations are kept bounded within acceptable limits. The proposed controller uses constant axial offset (AO) strategy to maintain xenon oscillations to be bounded. The constant AO is a robust state constraint for load-following problem. The reactor core is simulated based on the two-point nuclear reactor model and one delayed neutron group. The stability analysis is given by means Lyapunov approach, thus the control system is guaranteed to be stable within a large range. The employed method is easy to implement in practical applications and moreover, the sliding mode control exhibits the desired dynamic properties during the entire output-tracking process independent of perturbations. Simulation results are presented to demonstrate the effectiveness of the proposed controller in terms of performance, robustness and stability. Results show that the proposed controller for the load-following operation is sufficiently effective so that the xenon oscillations are kept bounded in the considered region.

G.R. Ansarifar; S. Saadatzi

2015-01-01T23:59:59.000Z

466

Single-molecule FRET reveals a corkscrew RNA structure for the polymerase-bound influenza virus promoter  

Science Journals Connector (OSTI)

...sequence (30, 31). The polymerase bound less well to a WT 3? vRNA, and this binding was reduced by introducing mutations (C2U, U7A, and G9C) into the template (30, 31). To measure the affinity of binding accurately, we used a homogenous binding...

Alexandra I. Tomescu; Nicole C. Robb; Narin Hengrung; Ervin Fodor; Achillefs N. Kapanidis

2014-01-01T23:59:59.000Z

467

Positive-Energy, Bound-State, Bethe-Salpeter Solutions of a Spinor and a Scalar Exchanging Photons  

Science Journals Connector (OSTI)

......Splines (1978) Berlin-Heidelberg-New York: Springer-Verlag. 15) Mainland...Principles in Experimental Design (1962) New York: McGraw Hill. 19) Mainland G...No. 1, January 2009 Positive-Energy, Bound-State, Bethe-Salpeter......

G. B. Mainland

2009-01-01T23:59:59.000Z

468

Theoretical calculations of the HI, HeI and HeII freebound continuous emission spectra  

Science Journals Connector (OSTI)

......are available in electronic form only. In...tabulated values with calculations performed on a...33P0 threshold does not obey the correct...temperature range. The electronic tables are structured...have presented new calculations of the free-bound...Optical Physics Handbook. Am. Inst. Phys......

B. Ercolano; P. J. Storey

2006-11-11T23:59:59.000Z

469

On the spin- 1/2 AharonovBohm problem in conical space: Bound states, scattering and helicity nonconservation  

SciTech Connect

In this work the bound state and scattering problems for a spin- 1/2 particle undergone to an AharonovBohm potential in a conical space in the nonrelativistic limit are considered. The presence of a ?-function singularity, which comes from the Zeeman spin interaction with the magnetic flux tube, is addressed by the self-adjoint extension method. One of the advantages of the present approach is the determination of the self-adjoint extension parameter in terms of physics of the problem. Expressions for the energy bound states, phase-shift and S matrix are determined in terms of the self-adjoint extension parameter, which is explicitly determined in terms of the parameters of the problem. The relation between the bound state and zero modes and the failure of helicity conservation in the scattering problem and its relation with the gyromagnetic ratio g are discussed. Also, as an application, we consider the spin- 1/2 AharonovBohm problem in conical space plus a two-dimensional isotropic harmonic oscillator. -- Highlights: Planar dynamics of a spin- 1/2 neutral particle. Bound state for AharonovBohm systems. AharonovBohm scattering. Helicity nonconservation. Determination of the self-adjoint extension parameter.

Andrade, F.M., E-mail: fmandrade@uepg.br [Departamento de Matemtica e Estatstica, Universidade Estadual de Ponta Grossa, 84030-900 Ponta Grossa-PR (Brazil); Silva, E.O., E-mail: edilbertoo@gmail.com [Departamento de Fsica, Universidade Federal do Maranho, Campus Universitrio do Bacanga, 65085-580 So Lus-MA (Brazil); Pereira, M., E-mail: marciano@uepg.br [Departamento de Matemtica e Estatstica, Universidade Estadual de Ponta Grossa, 84030-900 Ponta Grossa-PR (Brazil)

2013-12-15T23:59:59.000Z

470

ORNL/UTK team maps the nuclear landscape The Chart of Nuclides is bounded by drip lines, where  

E-Print Network (OSTI)

ORNL/UTK team maps the nuclear landscape The Chart of Nuclides is bounded by drip lines, where of the neutron drip line was shown to grow steadily with distance from the valley of stability. Model squares). Mean drip lines and their uncertainties (red) were obtained by averaging the results

471

Synthetic DNA Replication Bubbles Bound and Unwound with Twofold Symmetry by a Simian Virus 40 T-Antigen Double Hexamer  

Science Journals Connector (OSTI)

...yielded similar results. When the stabilities of TAgDH-DNA substrate complexes...antigen bound to the replication bubble substrates. Standard binding reactions...There was no effect of CaCl2 on the stability of the TAgDH-DNA substrate complexes...

Natalia V. Smelkova; James A. Borowiec

1998-11-01T23:59:59.000Z

472

Diphoton decay of the Higgs boson and new bound states of top and anti-top quarks  

E-Print Network (OSTI)

We consider the constraints, provided by the LHC results on Higgs boson decay into 2 photons and its production via gluon fusion, on the previously proposed Standard Model (SM) strongly bound state $S$ of 6 top quarks and 6 anti-top quarks. A correlation is predicted between the ratios $\\kappa_{\\gamma}$ and $\\kappa_g$ of the Higgs diphoton decay and gluon production amplitudes respectively to their SM values. We estimate the contribution to these amplitudes from one loop diagrams involving the 12 quark bound state $S$ and related excited states using an atomic physics based model. We find two regions of parameter space consistent with the ATLAS and CMS data on ($\\kappa_{\\gamma}$, $\\kappa_g$) at the 3 sigma level: a region close to the SM values ($\\kappa_{\\gamma}=1$, $\\kappa_g =1$) with the mass of the bound state $m_S > 400$ GeV and a region with ($\\kappa_{\\gamma} \\sim 3/2$, $\\kappa_g \\sim -3/4$) corresponding to a bound state mass of $m_S \\sim 220$ GeV.

Froggatt, C D; Laperashvili, L V; Nielsen, H B

2015-01-01T23:59:59.000Z

473

Bounds on an energy-dependent and observer-independent speed of light from violations of locality  

E-Print Network (OSTI)

We show that models with deformations of special relativity that have an energy-dependent speed of light have non-local effects. The requirement that the arising non-locality is not in conflict with known particle physics allows us to derive strong bounds on deformations of special relativity and rule out a modification to first order in energy over the Planck mass.

Sabine Hossenfelder

2010-04-03T23:59:59.000Z

474

Bounds on an Energy-Dependent and Observer-Independent Speed of Light from Violations of Locality  

SciTech Connect

We show that models with deformations of special relativity that have an energy-dependent speed of light have nonlocal effects. The requirement that the arising nonlocality is not in conflict with known particle physics allows us to derive strong bounds on deformations of special relativity and rule out a modification to first order in energy over the Planck mass.

Hossenfelder, Sabine [NORDITA, Roslagstullsbacken 23, 106 91 Stockholm (Sweden)

2010-04-09T23:59:59.000Z

475

Structure of the Ebola Virus Glycoprotein Bound to An Antibody From a Human Survivor  

SciTech Connect

Ebola virus (EBOV) entry requires the surface glycoprotein (GP) to initiate attachment and fusion of viral and host membranes. Here we report the crystal structure of EBOV GP in its trimeric, pre-fusion conformation (GP1+GP2) bound to a neutralizing antibody, KZ52, derived from a human survivor of the 1995 Kikwit outbreak. Three GP1 viral attachment subunits assemble to form a chalice, cradled by the GP2 fusion subunits, while a novel glycan cap and projected mucin-like domain restrict access to the conserved receptor-binding site sequestered in the chalice bowl. The glycocalyx surrounding GP is likely central to immune evasion and may explain why survivors have insignificant neutralizing antibody titres. KZ52 recognizes a protein epitope at the chalice base where it clamps several regions of the pre-fusion GP2 to the amino terminus of GP1. This structure provides a template for unraveling the mechanism of EBOV GP-mediated fusion and for future immunotherapeutic development.

Lee, J.E.; Fusco, M.L.; Hessell, A.J.; Oswald, W.B.; Burton, D.R.; Saphire, E.O.

2009-05-20T23:59:59.000Z

476

Universality of weakly bound dimers and Efimov trimers close to Li-Cs Feshbach resonances  

E-Print Network (OSTI)

We study the interspecies scattering properties of ultracold Li-Cs mixtures in their two energetically lowest spin channels in the magnetic field range between 800 G and 1000 G. Close to two broad Feshbach resonances we create weakly bound LiCs dimers by radio-frequency association and measure the dependence of the binding energy on the external magnetic field strength. Based on the binding energies and complementary atom loss spectroscopy of three other Li-Cs s-wave Feshbach resonances we construct precise molecular singlet and triplet electronic ground state potentials using a coupled-channels calculation. We extract the Li-Cs interspecies scattering length as a function of the external field and obtain almost a ten-fold improvement in the precision of the values for the pole positions and widths of the s-wave Li-Cs Feshbach resonances as compared to our previous work [Pires \\textit{et al.}, Phys. Rev. Lett. \\textbf{112}, 250404 (2014)]. We discuss implications on the Efimov scenario and the universal geome...

Ulmanis, J; Pires, R; Kuhnle, E D; Weidemller, M; Tiemann, E

2015-01-01T23:59:59.000Z

477

New Bounds for Axions and Axion-Like Particles with keV-GeV Masses  

E-Print Network (OSTI)

We give updated constraints on hypothetical light bosons with a two-photon coupling such as axions or axion-like particles (ALPs). We focus on masses and lifetimes where decays happen near big bang nucleosynthesis (BBN), thus altering the baryon-to-photon ratio and number of relativistic degrees of freedom between the BBN epoch and the cosmic microwave background (CMB) last scattering epoch, in particular such that $N_{\\rm eff}^{\\rm CMB} 3\\sigma$ by the combination of CMB+D/H measurements if only ALPs and three thermalized neutrino species contribute to $N_{\\rm eff}$. The bound relaxes if there are additional light degrees of freedom present which, in this scenario, have their contribution limited to $\\Delta N_{\\rm eff}=1.1\\pm0.3$. We give forecasts showing that a number of experiments are expected to reach the sensitivity needed to further test this region, such as Stage-IV CMB and SUPER-KEKB, the latter a direct test insensitive to any extra degrees of freedom.

Millea, Marius; Fields, Brian

2015-01-01T23:59:59.000Z

478

Neutron scattering from elemental indium, the optical model, and the bound-state potential  

SciTech Connect

Neutron differential elastic-scattering cross sections of elemental indium are measured from 4.5 to 10 MeV at incident-energy intervals of {approx}500 keV. Seventy or more differential values are obtained at each incident energy, distributed between {approx}18{degree} and 160{degree}. These experimental results are combined with lower-energy values previously obtained at this laboratory, and with 11 and 14 MeV results in the literature, to form a comprehensive elastic-scattering database extending from {approx}1.5 to 14 MeV. These data are interpreted in terms of a conventional spherical optical model. The resulting potential is extrapolated to the bound-state regime. It is shown that in the middle of the 50--82 neutron shell, the potential derived from the scattering results adequately describes the binding energies of article states, but does not do well for hole states. The latter shortcoming is attributed to the holes states having occupational probabilities sufficiently different from unity, so that the exclusion principle become a factor, and to the rearrangement of the neutron core. 68 refs.

Chiba, S. (Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan)); Guenther, P.T.; Lawson, R.D.; Smith, A.B. (Argonne National Lab., IL (USA))

1990-06-01T23:59:59.000Z

479

Dynamical Aspects on Duality between SYM and NCOS from D2-F1 Bound State  

E-Print Network (OSTI)

It has been shown that (2+1)-dimensional N=8 super Yang-Mills (SYM) theory with electric flux is related to (2+1)- dimensional noncommutative open string (NCOS) theory by `2-11' flip. This implies that the instanton process in SYM theory, which corresponds to D0-brane exchange (M-momentum transfer) between D2-branes, is dual to the KK momentum exchange in NCOS theory, which is perturbative process in nature. In order to confirm this, we obtain the effective action of probe M2-brane on the background of tilted M2-branes, which would correspond to the one-loop effective action of SYM theory with non-perturbative instanton corrections. Then we consider the dual process in NCOS theory, which is the scattering amplitude of the wound graviton off the D2-F1 bound state involving KK-momentum transfer in x^2-direction. Both of them give the same interaction terms. Remarkably they also have the same behavior on the nontrivial velocity dependence. All these strongly support the duality between those two theories with completely different nature.

Seungjoon Hyun; Hyeonjoon Shin

2002-02-27T23:59:59.000Z

480

(F1, D1, D3) Bound State, Its Scaling Limits and SL(2,Z) Duality  

E-Print Network (OSTI)

We discuss the properties of the bound state (F1, D1, D3) in IIB supergravity in three different scaling limits and the $SL(2,{\\bf Z})$ transformation of the resulting theories. In the simple decoupling limit with finite electric and magnetic components of NS $B$ field, the worldvolume theory is the ${\\cal N}$=4 super Yang-Mills (SYM) and the supergravity dual is still the $AdS_5 \\times S^5$. In the large magnetic field limit with finite electric field, the theory is the noncommutative super Yang-Mills (NCSYM), and the supergravity dual is the same as that without the electric background. We show how to take the decoupling limit of the closed string for the critical electric background and finite magnetic field, and that the resulting theory is the noncommutative open string (NCOS) with both space-time and space-space noncommutativities. It is shown that under the $SL(2, {\\bf Z})$ transformation, the SYM becomes itself with a different coupling constant, the NCSYM is mapped to a NCOS, and the NCOS in general transforms into another NCOS and reduces to a NCSYM in a special case.

Rong-Gen Cai; Nobuyoshi Ohta

2000-07-14T23:59:59.000Z

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481

Three region analysis of a bounded plasma using particle in cell and fluid techniques. Doctoral thesis  

SciTech Connect

A detailed collisionless sheath theory and a three-region collisional model of a bounded plasma are presented, and the suitability of the collisional model for analysis of ignited mode thermionic converters is investigated. The sheath theory extends previous analyses to regimes in which the sheath potential and electron temperatures are comparable in magnitude. In all operating regimes typical of a ignited mode thermionic converter, the predicted sheaths extend several mean-free paths. The apparent collisionality of the sheaths prompted development of a collisional, three-region model of the converter plasma. By interfacing Particle-in-Cell regions (for the sheaths) and fluid regions (for the bulk of the plasma), a time-dependent, wall-to-wall model of the plasma in the inter-electrode space is created. The components of the model are tested and validated against analytic solutions and against one another, then applied to the analysis of an ignited mode thermionic converter. Under ignited mode operating conditions, the electron velocity distribution at the plasma/sheath boundary is found to be inconsistent with that assumed in the model development, and the calculation diverges. The observed distribution is analyzed and a new basis set of distribution functions is suggested that should permit application of the hybrid model to ignited mode thermionic converters.

Nichols, D.F.

1994-09-01T23:59:59.000Z

482

Boosting QED and QCD bound states in the path integral formalism  

E-Print Network (OSTI)

Wave functions and energy eigenvalues of the path integral Hamiltonian are studied in Lorentz frame moving with velocity $v$. The instantaneous interaction produced by the Wilson loop is shown to be reduced by an overall factor $\\sqrt{1-(\\frac{v}{c})^2}$. As a result one obtains the boosted energy eigenvalues in the Lorentz covariant form $E= \\sqrt{\\veP^2+M^2_0}$, where $M_0$ is the c.m. energy, and this form is tested for two free particles and for the Coulomb and linear interaction.Using Lorentz contracted wave functions of the bound states one obtains the scaled parton wave functions and valence quark distributions for large $P$. Matrix elements containing wave functions moving with different velocities strongly decrease with growing relative momentum, e.g. for the time-like formfactors one obtains $F_h(Q_0)\\sim (\\frac{M_h}{Q_0})^{2 n_h} $ with $n_h = 1$ and 2 for mesons and baryons, as in the "quark counting rule".

Yu. A. Simonov

2014-09-17T23:59:59.000Z

483

LHC bounds on Lepton Number Violation mediated by doubly and singly-charged scalars  

E-Print Network (OSTI)

The only possible doubly-charged scalar decays into two Standard Model particles are into pairs of same-sign charged leptons, H$^{\\pm\\pm}\\rightarrow {l}^\\pm {l}^\\pm, {l} = e, \\mu, \\tau$, or gauge bosons, H$^{\\pm\\pm}\\rightarrow W^\\pm W^\\pm$; being necessary the observation of both to assert the violation of lepton number. However, present ATLAS and CMS limits on doubly-charged scalar production are obtained under specific assumptions on its branching fractions into dileptons only. Although they can be extended to include decays into dibosons and lepton number violating processes. Moreover, the production rates also depend on the type of electroweak multiplet H$^{\\pm\\pm}$ belongs to. We classify the possible alternatives and provide the Feynman rules and codes for generating the corresponding signals for pair and associated doubly-charged scalar production, including the leading contribution from the $s$-channel exchange of electroweak gauge bosons as well as the vector-boson fusion corrections. Then, using the same analysis criteria as the LHC collaborations we estimate the limits on the H$^{\\pm\\pm}$ mass as a function of the electroweak multiplet it belongs to, and obtain the bounds on the lepton number violating processes $pp\\rightarrow {\\rm H}^{\\pm\\pm}{\\rm H}^{\\mp\\mp} \\rightarrow {\\ell}^\\pm {\\ell}^\\pm W^\\mp W^\\mp$ and $pp\\rightarrow {\\rm H}^{\\pm\\pm}{\\rm H}^{\\mp} \\rightarrow {\\ell}^\\pm {\\ell}^\\pm W^\\mp Z$, $\\ell = e, \\mu$, implied by the ATLAS and CMS doubly-charged scalar searches.

Francisco del Aguila; Mikael Chala

2013-11-06T23:59:59.000Z

484

20142015 USF Graduate Catalog Updates Items are approved by the USF Graduate Council on the date noted or as Office of Graduate Studies (GS) approved.  

E-Print Network (OSTI)

) Youth & Behavioral Health M.S. Effective Spring 2014 EN Computer Science (Change CIP code 14 Entire CIP COL Program Name CIP CODE CIP Name BA Business Economics (MA) 52.0601 Business Terminations Only that Program within the CIP COL Program Name CIP CODE CIP Name AS Classics (MA) 16

Meyers, Steven D.

485

Bounding the Role of Black Carbon in the Climate System: A Scientific Assessment  

SciTech Connect

Black carbon aerosol plays a unique and important role in Earths climate system. Black carbon is a type of carbonaceous material with a unique combination of physical properties. Predominant sources are combustion related; namely, fossil fuels for transportation, solid fuels for industrial and residential uses, and open burning of biomass. Total global emissions of black carbon using bottom-up inventory methods are 7500 Gg yr-1 in the year 2000 with an uncertainty range of 2000 to 29000. This assessment provides an evaluation of black-carbon climate forcing that is comprehensive in its inclusion of all known and relevant processes and that is quantitative in providing best estimates and uncertainties of the main forcing terms: direct solar absorption, influence on liquid, mixed-phase, and ice clouds, and deposition on snow and ice. These effects are calculated with models, but when possible, they are evaluated with both microphysical measurements and field observations. Global atmospheric absorption attributable to black carbon is too low in many models, and should be increased by about about 60%. After this scaling, the best estimate for the industrial-era (1750 to 2005) direct radiative forcing of black carbon is +0.43 W m-2 with 90% uncertainty bounds of (+0.17, +0.68) W m-2. Total direct forcing by all black carbon sources in the present day is estimated as +0.49 (+0.20, +0.76) W m-2. Direct radiative forcing alone does not capture important rapid adjustment mechanisms. A framework is described and used for quantifying climate forcings and their rapid responses and feedbacks. The best estimate of industrial-era (1750 to 2005) climate forcing of black carbon through all forcing mechanisms is +0.77 W m-2 with 90% uncertainty bounds of +-0.06 to +1.53 W m-2. Thus, there is a 96% probability that black carbon emissions, independent of co-emitted species, have a positive forcing and warm the climate. With a value of +0.77 W m-2, black carbon is likely the second most important individual climate-forcing agent in the industrial era, following carbon dioxide. Sources that emit black carbon also emit other short- lived species that may either cool or warm climate. Climate forcings from co-emitted species are estimated and used in the framework described herein. When the principal effects of co- emissions, including cooling agents such as sulfur dioxide, are included in net forcing, energy-related sources (fossil-fuel and biofuel) have a net climate forcing of +0.004 (-0.62 to +0.57) W m-2 during the first year after emission. For a few of these sources, such as diesel engines and possibly residential biofuels, warming is strong enough that eliminating all emissions from these sources would reduce net climate forcing (i.e., produce cooling). When open burning emissions, which emit high levels of organic matter, are included in the total, the best estimate of net industrial-era climate forcing by all black- carbon-rich sources becomes slightly negative (-0.08 W m-2 with 90% uncertainty bounds of -1.23 to +0.81 W m-2). The uncertainties in net climate forcing from black-carbon-rich sources are substantial, largely due to lack of knowledge about cloud interactions with both black carbon and co-emitted organic carbon. In prioritizing potential black-carbon mitigation actions, non-science factors, such as technical feasibility, costs, policy design, and implementation feasibility play important roles. The major sources of black carbon are presently in different stages with regard to the feasibility for near-term mitigation. This assessment, by evaluating the large number and complexity of the associated physical and radiative processes in black-carbon climate forcing, sets a baseline from which to improve future climate forcing estimates.

Bond, Tami C.; Doherty, Sarah J.; Fahey, D. W.; Forster, Piers; Berntsen, T.; DeAngelo, B. J.; Flanner, M. G.; Ghan, Steven J.; Karcher, B.; Koch, Dorothy; Kinne, Stefan; Kondo, Yutaka; Quinn, P. K.; Sarofim, Marcus; Schultz, Martin; Schulz, M.; Venkataraman, C.; Zhang, Hua; Zhang, Shiqiu; Bellouin, N.; Guttikunda, S. K.; Hopke, P. K.; Jacobson, M. Z.; Kaiser, J. W.; Klimont, Z.; Lohmann, U.; Schwarz, Joshua P.; Shindell, Drew; Storelvmo, Trude; Warren, Stephen G.; Zender, C. S.

2013-06-06T23:59:59.000Z

486

Density Functional Theory for Fractional Particle Number: Derivative Discontinuity of the Energy at the Maximum Number of Bound Electrons  

E-Print Network (OSTI)

The derivative discontinuity in the exact exchange-correlation potential of ensemble Density Functional Theory (DFT) is investigated at the specific integer number that corresponds to the maximum number of bound electrons, $J_{max}$. A recently developed complex-scaled analog of DFT is extended to fractional particle numbers and used to study ensembles of both bound and metastable states. It is found that the exact exchange-correlation potential experiences discontinuous jumps at integer particle numbers including $J_{max}$. For integers below $J_{max}$ the jump is purely real because of the real shift in the chemical potential. At $J_{max}$, the jump has a non-zero imaginary component reflecting the finite lifetime of the $(J_{max}+1)$ state.

Daniel L. Whitenack; Yu Zhang; Adam Wasserman

2011-11-08T23:59:59.000Z

487

Bound-free pair production cross section in heavy-ion colliders from the equivalent photon approach  

E-Print Network (OSTI)

Exact calculations of the electron-positron pair production by a single photon in the Coulomb field of a nucleus with simultaneous capture of the electron into the K-shell are discussed for different nuclear charges. Using the equivalent photon method of Weizsaecker and Williams, a simple expression for the bound-free production of electron-positron pairs by colliding very-high-energy fully stripped heavy ions is derived for nuclei of arbitrary charge.

Andreas Aste

2008-01-16T23:59:59.000Z

488

Validity of the Generalized Second Law of Thermodynamics of the Universe Bounded by the Event Horizon in Brane Scenario  

E-Print Network (OSTI)

In this paper, we examine the validity of the generalized second law of thermodynamics (GSLT) of the universe bounded by the event horizon in brane-world gravity. Here we consider homogeneous and isotropic model of the universe filled with perfect fluid in one case and in another case holographic dark energy model of the universe has been considered. The conclusions are presented point wise.

Nairwita Mazumder; Subenoy Chakraborty

2010-05-27T23:59:59.000Z

489

Crystal Structures of SlyA Protein, a Master Virulence Regulator of Salmonella, in Free and DNA-bound States  

SciTech Connect

SlyA is a master virulence regulator that controls the transcription of numerous genes in Salmonella enterica. We present here crystal structures of SlyA by itself and bound to a high-affinity DNA operator sequence in the slyA gene. SlyA interacts with DNA through direct recognition of a guanine base by Arg-65, as well as interactions between conserved Arg-86 and the minor groove and a large network of non-base-specific contacts with the sugar phosphate backbone. Our structures, together with an unpublished structure of SlyA bound to the small molecule effector salicylate (Protein Data Bank code 3DEU), reveal that, unlike many other MarR family proteins, SlyA dissociates from DNA without large conformational changes when bound to this effector. We propose that SlyA and other MarR global regulators rely more on indirect readout of DNA sequence to exert control over many genes, in contrast to proteins (such as OhrR) that recognize a single operator.

Dolan, Kyle T.; Duguid, Erica M.; He, Chuan (UC)

2011-11-17T23:59:59.000Z

490

PT-/non-PT-Symmetric and non-Hermitian Hellmann Potential: Approximate Bound and Scattering States with Any $\\ell$-Values  

E-Print Network (OSTI)

We investigate the approximate bound state solutions of the Schr\\"odinger equation for the PT-/non-PT-symmetric and non Hermitian Hellmann potential. Exact energy eigenvalues and corresponding normalized wave functions are obtained. Numerical values of energy eigenvalues for the bound states are compared with the ones obtained before. Scattering state solutions are also studied. Phase shifts of the potential are written in terms of the angular momentum quantum number $\\ell$.

Altug Arda; Ramazan Sever

2014-08-29T23:59:59.000Z

491

Unliganded HIV-1 gp120 core structures assume the CD4-bound conformation with regulation by quaternary interactions and variable loops  

SciTech Connect

The HIV-1 envelope (Env) spike (gp120{sub 3}/gp41{sub 3}) undergoes considerable structural rearrangements to mediate virus entry into cells and to evade the host immune response. Engagement of CD4, the primary human receptor, fixes a particular conformation and primes Env for entry. The CD4-bound state, however, is prone to spontaneous inactivation and susceptible to antibody neutralization. How does unliganded HIV-1 maintain CD4-binding capacity and regulate transitions to the CD4-bound state? To define this mechanistically, we determined crystal structures of unliganded core gp120 from HIV-1 clades B, C, and E. Notably, all of these unliganded HIV-1 structures resembled the CD4-bound state. Conformational fixation with ligand selection and thermodynamic analysis of full-length and core gp120 interactions revealed that the tendency of HIV-1 gp120 to adopt the CD4-bound conformation was restrained by the V1/V2- and V3-variable loops. In parallel, we determined the structure of core gp120 in complex with the small molecule, NBD-556, which specifically recognizes the CD4-bound conformation of gp120. Neutralization by NBD-556 indicated that Env spikes on primary isolates rarely assume the CD4-bound conformation spontaneously, although they could do so when quaternary restraints were loosened. Together, the results suggest that the CD4-bound conformation represents a 'ground state' for the gp120 core, with variable loop and quaternary interactions restraining unliganded gp120 from 'snapping' into this conformation. A mechanism of control involving deformations in unliganded structure from a functionally critical state (e.g., the CD4-bound state) provides advantages in terms of HIV-1 Env structural diversity and resistance to antibodies and inhibitors, while maintaining elements essential for entry.

Kwon, Young Do; Finzi, Andrs; Wu, Xueling; Dogo-Isonagie, Cajetan; Lee, Lawrence K.; Moore, Lucas R.; Schmidt, Stephen D.; Stuckey, Jonathan; Yang, Yongping; Zhou, Tongqing; Zhu, Jiang; Vicic, David A.; Debnath, Asim K.; Shapiro, Lawrence; Bewley, Carole A.; Mascola, John R.; Sodroski, Joseph G.; Kwong, Peter D. (Harvard-Med); (NIH); (Hawaii); (L.F. Kimball); (Columbia); (VCCRI); (Arkansas); (DFCI)

2013-03-04T23:59:59.000Z

492

A lower bound on blowup rates for the 3D incompressible Euler equation and a single exponential Beale-Kato-Majda type estimate  

E-Print Network (OSTI)

We prove a Beale-Kato-Majda type criterion for the loss of regularity for solutions of the incompressible Euler equations in $H^{s}(\\R^3)$, for $s>\\frac52$. Instead of double exponential estimates of Beale-Kato-Majda type, we obtain a single exponential bound on $\\|u(t)\\|_{H^s}$ involving the length parameter introduced by P. Constantin in \\cite{co1}. In particular, we derive lower bounds on the blowup rate of such solutions.

Thomas Chen; Nataa Pavlovi?

2011-10-30T23:59:59.000Z

493

Deeply-bound $K^- pp$ state in the $^3$He(in-flight $K^-$, $n$) spectrum and its moving pole near the $??N$ threshold  

E-Print Network (OSTI)

The formation of a deeply-bound $K^- pp$ state with $I=1/2$, $J^\\pi=0^-$ by the $^3$He(in-flight $K^-$, $n$) reaction is theoretically investigated in a distorted-wave impulse approximation using the Green's function method. The expected inclusive and semi-exclusive spectra at $p_{K^-} = 1.0$ GeV/c and $\\theta_{\\rm lab} = 0^{\\circ}$ are calculated for the forthcoming J-PARC E15 experiment. We demonstrate these spectra with several types of phenomenological $K^-$-``$pp$'' optical potentials $U^{\\rm opt}(E)$ which have an energy-dependent imaginary part multiplied by a phase space suppression factor, fitting to recent theoretical predictions or experimental candidates of the $K^-pp$ bound state. The results show that a cusp-like peak at the $\\pi \\Sigma N$ threshold is an unique signal for the $K^-pp$ bound state in the spectrum including the [$K^-pp$] $\\to$ $Y + N$ decay process from the two-nucleon $K^-$ absorption, as well as a distinct peak of the $K^-pp$ bound state. The shape of the spectrum is explained by a trajectory of a moving pole of the $K^-pp$ bound state in the complex energy plane. The importance of the spectrum with [$K^-pp$] $\\to$ $Y + N$ from the two-nucleon $K^-$ absorption is emphasized in order to extract clear evidence of the $K^-pp$ bound state.

T. Koike; T. Harada

2009-11-06T23:59:59.000Z

494

Near- and subbarrier elastic and quasielastic scattering of the weakly bound {sup 6}Li projectile on {sup 144}Sm  

SciTech Connect

High-precision data of backward-angle elastic and quasielastic scattering for the weakly bound {sup 6}Li projectile on {sup 144}Sm target at deep-sub-barrier, near-, and above-barrier energies were measured. From the deep-sub-barrier data, the surface diffuseness of the nuclear interacting potential was studied. Barrier distributions were extracted from the first derivatives of the elastic and quasielastic excitation functions. It is shown that sequential breakup through the first resonant state of the {sup 6}Li is an important channel to be included in coupled-channels calculations, even at deep-sub-barrier energies.

Monteiro, D. S.; Otomar, D. R.; Lubian, J.; Gomes, P. R. S. [Instituto de Fisica, Universidade Federal Fluminense, Av. Litoranea s/n, Gragoata, Niteroi, R.J., 24210-340 (Brazil); Capurro, O. A.; Marti, G. V. [Laboratorio TANDAR, Comision Nacional de Energia Atomica, Av. General Paz 1499, 1650 San Martin, Buenos Aires (Argentina); Arazi, A.; Figueira, J. M.; Heimann, D. Martinez; Negri, A. E.; Pacheco, A. J. [Laboratorio TANDAR, Comision Nacional de Energia Atomica, Av. General Paz 1499, 1650 San Martin, Buenos Aires (Argentina); CONICET, Av. Rivadavia 1917, Buenos Aires (1033) (Argentina); Niello, J. O. Fernandez [Laboratorio TANDAR, Comision Nacional de Energia Atomica, Av. General Paz 1499, 1650 San Martin, Buenos Aires (Argentina); CONICET, Av. Rivadavia 1917, Buenos Aires (1033) (Argentina); Escuela de Ciencia y Tecnologia, Univ. Nac. de San Martin, San Martin (1650), Buenos Aires (Argentina); Guimaraes, V. [Instituto de Fisica, Universidade de Sao Paulo, Caixa postal 66318, 05315-970, Sao Paulo, S.P. (Brazil)

2009-01-15T23:59:59.000Z

495

The generalized second law of thermodynamics of the universe bounded by the event horizon and modified gravity theories  

E-Print Network (OSTI)

In this paper, we investigate the validity of the generalized second law of thermodynamics of the universe bounded by the event horizon. Here we consider homogeneous and isotropic model of the universe filled with perfect fluid in one case and in another case holographic model of the universe has been considered. In the third case the matter in the universe is taken in the form of non-interacting two fluid system as holographic dark energy and dust. Here we study the above cases in the Modified gravity, f(R) gravity.

Nairwita Mazumder; Subenoy Chakraborty

2010-05-28T23:59:59.000Z

496

Fourier Transform of the Stretched Exponential Function: Analytic Error Bounds, Double Exponential Transform, and Open-Source Implementation libkww  

E-Print Network (OSTI)

The C library \\texttt{libkww} provides functions to compute the Kohlrausch-Williams-Watts function, i.e.\\ the Laplace-Fourier transform of the stretched (or compressed) exponential function $\\exp(-t^\\beta)$ for exponents $\\beta$ between 0.1 and 1.9 with sixteen-digits accuracy. Analytic error bounds are derived for the low and high frequency series expansions. For intermediate frequencies the numeric integration is enormously accelerated by using the Ooura-Mori double exponential transformation. The source code is available from the project home page \\url{http://apps.jcns.fz-juelich.de/doku/sc/kww}.

Joachim Wuttke

2012-09-01T23:59:59.000Z

497

Calculation of loosely bound levels for three-body quantum systems using hyperspherical coordinates with a mapping procedure  

SciTech Connect

In view of modelization of experiments involving cold atoms and molecules, we develop a method that allows us to calculate weakly bound levels of triatomic molecules. The method combines (1) the hyperspherical coordinates to describe interparticle motion in the three-body system, (2) the solution of the Schroedinger equation in two steps: determination of adiabatic states for a fixed hyper-radius and then solution of a set of coupled hyper-radial equations using the slow variable representation of Tolstikhin et al. [J. Phys. B: At. Mol. Opt. Phys. 29, L389 (1996)], (3) and a mapping procedure that reduces considerably the number of basis functions needed to represent wave functions of weakly bound levels. We apply the method to the three different systems: the helium trimer {sup 4}He{sub 3}, isotopomers of the H{sub 3}{sup +} ion, and finally a model three-body problem involving three nucleons. For all these systems, we show that the suggested method provides accurate results.

Kokoouline, Viatcheslav [Department of Physics, University of Central Florida, Orlando, Florida 32816 (United States); Laboratoire Aime Cotton, CNRS, Bat. 505, Campus d'Orsay, 91405 Orsay Cedex (France); Masnou-Seeuws, Francoise [Laboratoire Aime Cotton, CNRS, Bat. 505, Campus d'Orsay, 91405 Orsay Cedex (France)

2006-01-15T23:59:59.000Z

498

Bekenstein Bound of Information Number N and its Relation to Cosmological Parameters in a Universe with and without Cosmological Constant  

E-Print Network (OSTI)

Bekenstein has obtained is an upper limit on the entropy S, and from that, an information number bound N is deduced. In other words, this is the information contained within a given finite region of space that includes a finite amount of energy. Similarly, this can be thought as the maximum amount of information required to perfectly describe a given physical system down to its quantum level. If the energy and the region of space are finite then the number of information N required in describing the physical system is also finite. In this short letter two information number bounds are derived and compared for two types of universe. First, a universe without a cosmological constant lamda and second a universe with a cosmological constant lamda are investigated. This is achieved with the derivation of two different relations that connect the Hubble constant and cosmological constants to the number of information N. We find that the number of information N involved in a the two universes are identical or N1=N2, and that the total mass of the universe scales as the square root of the information number N, containing an information number N of the order of 10E+122. Finally, we expressed Calogero quantization action as a function of the number of information N. We also have found that in self gravitating systems the number of information N in nats is the ratio of the total kinetic to total thermal energy of the system.

Ioannis Haranas; Ioannis Gkigkitzis

2014-06-09T23:59:59.000Z

499

Annual measurement of sea-ice thickness using an upward-looking sonar  

Science Journals Connector (OSTI)

... and the forms the ice takes are of great importance to operators in polar conditions. Offshore ...

Rick Hudson

1990-03-08T23:59:59.000Z

500

Psychophysiological Reactivity to Self and Model Images in an Upward Social Comparison Manipulation  

E-Print Network (OSTI)

Studies of Texas A&M University in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Antonio Cepeda-Benito Committee Members, Marisol Perez Brandon Schmeichel... chair, Dr. Antonio Cepeda-Benito, and my committee members, Drs. Marisol Perez, Brandon Schmeichel, and Louis Tassinary, for their invaluable guidance, time, and support throughout the course of this project. I would also like to extend my deepest...

Tamez, Jeannine

2012-02-14T23:59:59.000Z