Updated 8/2014 FEDERAL TRIO UPWARD BOUND PROGRAM
. 2002, Norfolk, VA 23529, (757) 683-4315, Fax: (757) 683-3201 Web address: https for Admission to the UPWARD BOUND PROGRAM USE BLACK OR DARK INK (Please print) Date _____________________ Name
USF System USF USFSP USFSM Number: USF3.027
Meyers, Steven D.
's (USF System) commitment to the academic honesty and personal integrity of its university communityREGULATION USF System USF USFSP USFSM Number: USF3.027 Subject: Academic Integrity of Students-3-15 _____________________________________________________________________________________________ I. PURPOSE & INTENT Academic integrity is the foundation of the University of South Florida System
USF System USF USFSP USFSM Number: USF10.211
Meyers, Steven D.
into account the employee's length of continuous satisfactory service to the USF System and other appropriate full-time will have their retention points determined in proportion to the time worked. Layoff rights
USF System USF USFSP USFSM Number: 6-009
Meyers, Steven D.
POLICY USF System USF USFSP USFSM Number: 6-009 Subject: Weapons on USF System Property Responsible-6-14 _____________________________________________________________________________________________ I. PURPOSE & INTENT In compliance with Chapter 790 (Weapons and Firearms) of the Florida Statutes this Policy for information regarding the use, storage and possession of weapons on USF System property. II
USF Graduate Catalog 20142015 607www.patel.usf.edu
Meyers, Steven D.
Energy (SUSE) Sustainable Tourism (SUT) Water (WTR) #12;USF Graduate Catalog 20142015 with a Concentration in Water Green denotes Program (or Major) Black denotes degree #12;USF Graduate Catalog 20142015USF Graduate Catalog 20142015 607www.patel.usf.edu SECTION 17 CCOOLLLLEEGGEE OOFF
USF System USF USFSP USFSM Number: 6-021
Meyers, Steven D.
Agreement iv. Preparation of the Capital Improvement Plan B. Authority Campus Master Plans are requiredPOLICY USF System USF USFSP USFSM Number: 6-021 Subject: Campus Master Planning Program Responsible-2-15 _____________________________________________________________________________________________ I. PURPOSE & INTENT The purpose and intent of the USF System Campus Master Planning Program
USF Graduate Catalog 20142015 http://www.eng.usf.edu/
Meyers, Steven D.
USF Graduate Catalog 20142015 524 http://www.eng.usf.edu/ SECTION 16 CCOOLLLLEEGGEE OOFF EENNGGIINNEEEERRIINNGG #12;USF Graduate Catalog 20142015 Section 16 College of Engineering 525 http and Water Resources 5/5/14 Civil Engineering MSCE Revise curriculum. 5/5/14 Change Masters
USF System USF USFSP USFSM Number: 0-314
Meyers, Steven D.
OF POLICY A. All proposals for fixed-price sponsored projects must be processed using USF System policies and procedures for sponsored projects administration. #12;B. Deficits or cost overruns on fixed-price sponsoredPOLICY USF System USF USFSP USFSM Number: 0-314 Subject: Financial Closeout of Fixed-price
USF PHYSICAL PLANT VEHICLE MAINTENANCE
Meyers, Steven D.
USF PHYSICAL PLANT VEHICLE MAINTENANCE TELEPHONE NO. 974-2500 GAS PUMP AUTHORIZATION FORM PLEASE. _____ THE FOLLOWING PERSONNEL ARE AUTHORIZED BY THIS DOCUMENT TO PUMP GASOLINE/DIESEL FUEL FOR OUR USF OWNED VEHICLES
USF System USF USFSP USFSM Number: 6-023
Meyers, Steven D.
to the University of South Florida's Tampa Campus Municipal Separate Storm Sewer System (MS4) in compliance is any discharge to the USF Tampa Campus storm sewer system that is not composed entirely of stormwater contaminant to the USF Tampa Campus storm sewer system. c. Shall report any observed illicit discharges
USF System USF USFSP USFSM Number: 5-014
Meyers, Steven D.
POLICY USF System USF USFSP USFSM Number: 5-014 Subject: Asset/Property Management Responsible, excluding real property. II. STATEMENT OF POLICY A. Asset Management Services is delegated the authority, fabrication or gift, which is practicable to identify by marking will be visibly marked by Asset Management
USF System USF USFSP USFSM Number: 0-307
Meyers, Steven D.
for these materials. F. Principal Investigators (PIs) are required to include the disposal fee as a direct cost in allPOLICY USF System USF USFSP USFSM Number: 0-307 Subject: Radioactive Waste Disposal Fees governing fee assessments pertinent to the disposal of radioactive waste. A fee is charged to active users
Meyers, Steven D.
The USF Health Heart Institute CARING FOR THE HEART #12;#12;THE USF HEALTH HEART INSTITUTE | UNIVERSITY OF SOUTH FLORIDA | USF HEALTH DOWNTOWN 3 TheUSFHealthHeartInstitute TheUSFHealthHeartInstituteBusinessPlan n The USF Heart Institute will create new and more effective treatments for one of Florida's leading
The USF Health Morsani College of Medicine
Meyers, Steven D.
The USF Health Morsani College of Medicine TOMORROW'S PHYSICIANS #12;#12;USF HEALTH MORSANI COLLEGE OF MEDICINE | UNIVERSITY OF SOUTH FLORIDA | USF HEALTH DOWNTOWN 3 TheMorsaniCollegeofMedicine Academics HEALTH MORSANI COLLEGE OF MEDICINE | UNIVERSITY OF SOUTH FLORIDA | USF HEALTH DOWNTOWN4 BAND-AIDS ONLY GO
USF System USF USFSP USFSM Number: 5-009
Meyers, Steven D.
to establish all postage meter contracts, maintain USF System mailing permits, enter into agreements with the U with each campus manager of campus mail services. 2. Departments may maintain a small inventory of postage
USF System USF USFSP USFSM Number: 0-024
Meyers, Steven D.
such records and documents. If an investigation reveals suspected criminal activity, the University Police. University Audit and Compliance has free and unrestricted access to all USF System and related entity records
USF System USF USFSP USFSM Number: 0-512
Meyers, Steven D.
Networks Classroom technologies The Information Technology Management Council (ITMC) consists on the implementation of this policy are described below. II. INFORMATION TECHNOLOGY MANAGEMENT COUNCIL (ITMC) The USF Information Technology Management Council is the highest level governance group for recommendations
USF Graduate Catalog 20142015 636http://health.usf.edu/medicine/
Meyers, Steven D.
USF Graduate Catalog 20142015 636http://health.usf.edu/medicine/ SECTION 19 MMOORRSSAANNII of Medicine 637http://health.usf.edu/medicine/ Changes to Note The follow curricular changes for the Morsani College of Medicine were approved by the USF Graduate Council on the date noted
USF Graduate Catalog 20142015 680http://health.usf.edu/nocms/nursing/
Meyers, Steven D.
) Nursing Education (NED) Pediatric Health Nursing (NPH) PsychiatricMental Health Nursing (NPMUSF Graduate Catalog 20142015 680http://health.usf.edu/nocms/nursing/ SECTION 20 CCOOLLLLEEGGEE OOFF NNUURRSSIINNGG #12;USF Graduate Catalog 20142015 Section 20 College of Nursing 681
Library hours vary by semester; Check lib.usf.edu After midnight, USF ID required
Meyers, Steven D.
Library hours vary by semester; Check lib.usf.edu After midnight, USF ID required lib.usf.edu (813? To learn how to: Integrate the library into Canvas, Invite a librarian to join your course's Canvas site, or Request a tailored research guide or library research assignment, Contact: Susan Silver | ssilver
Sporulation and Dissection From Kristina Schmidt, USF
Aris, John P.
Sporulation and Dissection From Kristina Schmidt, USF Sporulation 1. Patch out diploid from -80°C stock on a fresh YPD plate. Incubate for 2 days at 30°C. 2. Lightly inoculate 2.5 ml of YPD liquid medium. Grow 24 hours in drum rotator at 30°C. 3. Transfer 250 µl of culture to a sterile 1.5 ml tube
USFS West Wide Programmatic Environmental Impact Statement Record...
Programmatic Environmental Impact Statement Record of Decision Jump to: navigation, search OpenEI Reference LibraryAdd to library Legal Document- OtherOther: USFS West Wide...
Understanding "In-Unit" vs. "Out-of-Unit", Unions and Collective Bargaining at USF
Meyers, Steven D.
Understanding "In-Unit" vs. "Out-of-Unit", Unions and Collective Bargaining at USF Every job at USF is classified as either "in-unit" (part of a "bargaining unit" and therefore covered by a Collective Bargaining Agreement or CBA) or "out-of-unit" (not covered by a CBA). USF has four (4) unions which represent all
Meyers, Steven D.
learning environment that inspires innovation, creativity and collaboration and is focused on student System is a highimpact, global research system dedicated to student success. The USF System includes,000 students, the USF System has an annual budget of $1.5 billion and an annual economic impact of $3
The Library is open 24/5 Fall & Spring Summer hours vary -check lib.usf.edu
Meyers, Steven D.
The Library is open 24/5 Fall & Spring Summer hours vary - check lib.usf.edu After midnight, USF ID.lib.usf.edu/guides Teaching a Course? Learn how to integrate the library into Canvas Place items on reserve using PRESTO! Contact the library's Reserve Team at reserves@lib.usf.edu or 813-974-4182 Invite a librarian to join your
USF HRPP Policy No. 711: Requirements for Human Subjects Research Protection Education
Arslan, Hüseyin
USF HRPP Policy No. 711: Requirements for Human Subjects Research Protection Education Page 1 of 2 Requirements for Human Subjects Research Protection Education HRPP Policy No. 711 Effective Date 04 personnel who engage in human subjects research at the University of South Florida (USF) or research under
Example USFS Preliminary Section 4(e) Report | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale, AlabamaETEC GmbH JumpEllenville,PowerEvaporative Coolers JumpinUSFS Preliminary Section
USFS-Climate Change Resource Center | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX ECoop IncIowa (Utility Company) Jump to:TucsonLLCAdministration EIA||USFS-Climate Change
ORNL technology transfer continues strong upward trend | ornl...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
technology transfer continues strong upward trend Mike Paulus, director of Technology Transfer, says initiatives like SPARK have been effective at connecting entrepreneurs,...
Activation of 200 MW refusegenerated CHP upward regulation effect...
CHP plants can be used in the electricity market for upward regulation by bypassing the steam turbine. The technical design for this purpose must ensure that factors such as...
Activation of 200 MW refusegenerated CHP upward regulation effect...
EU Smart Grid Projects Map1 Overview Waste CHP plants can be used in the electricity market for upward regulation by bypassing the steam turbine. The technical design for this...
Mark Kubiske (USFS, center) describes gas exchange data to George Hendrey (BNL, left) and
obtained by North Central Station Engineer John Jakel (USFS). The lift will be used for operator needs to accommodate the boom lift for full access around each ring, we moved about 500 trees within 10 feet of each's buffer zone, and (2) it allows access for the boom lift. Thanks to Peterson Tree Service and our grounds
Meyers, Steven D.
training by completing the Collaborative Institutional Training Initiative (CITI) module most) is a critical element in training for scholarship. USF has information about RCR available online at: www relevant to the student's program of study. The CITI modules have been designed to introduce
Center for Educational Partnership Early Academic Outreach Program | Upward Bound | Transfer Prep
Loudon, Catherine
license, personal transportation and auto insurance · Work study encouraged · Available to work 2: Poor Fair Good Excellent Do you have a valid California Driver's License? Yes No Drivers License County? Yes No COMPENSATION: FEDERAL Work Study Award Amount: $ Salary In the winter quarter, EAOP
Meyers, Steven D.
USF College of Pharmacy Technical Standards All candidates must meet the health and technical standards requisite for admission and participation in the educational programs of the College. The Pharm
Wong, Roger Hoi Fung
2010-01-01
Gene Transcription during Fasting and Feeding/insulin: RoleGene Transcription during Fasting and Feeding/insulin: Roleproteins during the fasting/feeding transition. First, USF
Freij, N.; Nelson, C. J.; Mumford, S.; Erdélyi, R. [Solar Physics and Space Plasma Research Centre (SP2RC), School of Mathematics and Statistics, The University of Sheffield, Hicks Building, Hounsfield Road, Sheffield S3 7RH (United Kingdom); Scullion, E. M.; Wedemeyer, S., E-mail: n.freij@sheffield.ac.uk [Institute of Theoretical Astrophysics, University of Oslo, Postboks 1029 Blindern, NO-0315 Oslo (Norway)
2014-08-10
There have been ubiquitous observations of wave-like motions in the solar atmosphere for decades. Recent improvements to space- and ground-based observatories have allowed the focus to shift to smaller magnetic structures on the solar surface. In this paper, high-resolution ground-based data taken using the Swedish 1 m Solar Telescope is combined with co-spatial and co-temporal data from the Atmospheric Imaging Assembly (AIA) on board the Solar Dynamics Observatory (SDO) satellite to analyze running penumbral waves (RPWs). RPWs have always been thought to be radial wave propagation that occurs within sunspots. Recent research has suggested that they are in fact upwardly propagating field-aligned waves (UPWs). Here, RPWs within a solar pore are observed for the first time and are interpreted as UPWs due to the lack of a penumbra that is required to support RPWs. These UPWs are also observed co-spatially and co-temporally within several SDO/AIA elemental lines that sample the transition region and low corona. The observed UPWs are traveling at a horizontal velocity of around 17 ± 0.5 km s{sup –1} and a minimum vertical velocity of 42 ± 21 km s{sup –1}. The estimated energy of the waves is around 150 W m{sup –2}, which is on the lower bound required to heat the quiet-Sun corona. This is a new, yet unconsidered source of wave energy within the solar chromosphere and low corona.
File:04FDCExplorationApplicationProcessUSFS (3).pdf | Open Energy
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTIONRobertsdale,3IDGTermEasement.pdfInformation 04FDCExplorationApplicationProcessUSFS (3).pdf Jump
: A Global View United States Forest Service (USFS) NRIS-INFORMS-Fire/Fuels Analysis Tool 1 David S. Martinez routines, and rule bases (a knowledge base component) Build and retain project alternatives via Arc Ecologist, Fire & Aviation Management, Southwestern Region, Forest Service, U.S. Department of Agriculture
Upward Shift of the Atmospheric General Circulation under Global Warming: Theory and Simulations
Singh, Martin Simran
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 ...
Film boiling of saturated liquid flowing upward through a heated tube : high vapor quality range
Laverty, W. F.
1964-01-01
Film boiling of saturated liquid flowing upward through a uniformly heated tube has been studied for the case in which pure saturated liquid enters the tube and nearly saturated vapor is discharged. Since a previous study ...
Effects of Increased Upward Flux of Saline Water Caused by CO2 Storage or Other Factors
Murdoch, Lawrence; Xie, Shuang; Falta, Ronald W.; Yonkofski, Catherine MR
2015-08-01
Injection of CO2 in deep saline aquifers is being considered to reduce greenhouse gases in the atmosphere, and this process is expected to increase the pressure in these deep aquifers. One potential consequence of pressurization is an increase in the upward flux of saline water. Saline groundwater occurs naturally at shallow depths in many sedimentary basins, so an upward flux of solutes could degrade the quality of freshwater aquifers and threaten aquatic ecosystems. One problem could occur where saline water flowed upward along preferential paths, like faults or improperly abandoned wells. Diffuse upward flow through the natural stratigraphy could also occur in response to basin pressurization. This process would be slower, but diffuse upward flow could affect larger areas than flow through preferential paths, and this motivated us to evaluate this process. We analyzed idealized 2D and 3D geometries representing the essential details of a shallow, freshwater aquifer underlain by saline ground water in a sedimentary basin. The analysis was conducted in two stages, one that simulated the development of a freshwater aquifer by flushing out saline water, and another that simulated the effect of a pulse-like increase in the upward flux from the basin. The results showed that increasing the upward flux from a basin increased the salt concentration and mass loading of salt to streams, and decrease the depth to the fresh/salt transition. The magnitude of these effects varied widely, however, from a small, slow process that would be challenging to detect, to a large, rapid response that could be an environmental catastrophe. The magnitude of the increased flux, and the initial depth to the fresh/salt transition in groundwater controlled the severity of the response. We identified risk categories for salt concentration, mass loading, and freshwater aquifer thickness, and we used these categories to characterize the severity of the response. This showed that risks would likely be minor if the upward flux was smaller than a few tenths of the magnitude of recharge, according to the 2D analyses. The 3D analyses also show that upward flux could occur without a significant increase in the risk categories. The major contribution of this work is that it shows how a large increase in diffuse upward flux from a basin could cause significant problems, but a small increase in upward flux may occur without significantly affecting risks to the shallow freshwater flow system. This heightens the importance of understanding interactions between shallow and deep hydrologic systems when characterizing CO2 storage projects.
Physical mechanism and numerical simulation of the inception of the lightning upward leader
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)
2012-12-15
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.
Flux of upward high-energy muons at the multi-component primary energy spectrum
S. V. Ter-Antonyan; P. L. Biermann
2001-06-07
The atmospheric neutrino-induced upward muon flux are calculated by using the multi-component primary energy spectrum, CORSIKA EAS simulation code for the reproduction of the atmospheric neutrino spectra and improved parton model for charged-current cross sections. The results are obtained at 0.1-1000 TeV muon energy range and 0-89 degrees zenith angular range.
Meyers, Steven D.
of deploying current meters including bottom-mounted, upward looking and surface buoy-mounted, downward looking Acoustic Doppler Current Profilers (ADCPs). In the case of a surface buoy, an ADCP may be mounted within a cage suspended below the buoy (Irish et al. 1992; Seim and Edwards 2005), within the buoy bridle
UPWARD MOVEMENT OF PLUTONIUM TO SURFACE SEDIMENTS DURING AN 11-YEAR FIELD STUDY
Kaplan, D.; Beals, D.; Cadieux, J.; Halverson, J.
2010-01-25
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.
Sources of biogenic methane to form marine gas hydrates: In situ production or upward migration?
Paull, C.K.; Ussler, W. III; Borowski, W.S.
1993-09-01
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.
Pine and hardwood pulpwood stumpage prices continued an upward trend in March/
Pine and hardwood pulpwood stumpage prices continued an upward trend in March/ April 2010. The strong global pulp market and wet weather conditions in East Texas pushed up the pulpwood stumpage prices to a eight-month high. Lumber and panel prices continued rising. Observers com- mented that the price surge
Upward pressure on timber prices eased as logging conditions improved and lumber &
Upward pressure on timber prices eased as logging conditions improved and lumber & panel prices plummeted back to where they were before the spring run-ups. Overall, timber prices were higher than the prices a year ago. Lumber imports from Canada increased in June due to the temporary re- moval
Positive exchange bias and upward magnetic relaxation in a Fe-film/CoO-nanoparticle hybrid system
Krishnan, Kannan M.
Positive exchange bias and upward magnetic relaxation in a Fe-film/CoO- nanoparticle hybrid system exchange bias and upward magnetic relaxation in a Fe-film/CoO-nanoparticle hybrid system Wei Zhang) Heat-induced damping modification in yttrium iron garnet/platinum hetero-structures Appl. Phys. Lett
Mohanty, Saraju P.
or E(sw)): no switching no power loss !!! Not fully under designers control. Switching activity dependsDept. of Comp. Sc. & Engineering Mohanty, Ranga and BalakrishnanUNT and USF Design of a Low Power ImageDesign of a Low Power Image Watermarking Encoder using DualWatermarking Encoder using Dual Voltage
Eissenberg, David M. (Oak Ridge, TN); Liu, Yin-An (Opelika, AL)
1980-01-01
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.
Physical Uncertainty Bounds (PUB)
Vaughan, Diane Elizabeth; Preston, Dean L.
2015-03-19
This paper introduces and motivates the need for a new methodology for determining upper bounds on the uncertainties in simulations of engineered systems due to limited fidelity in the composite continuum-level physics models needed to simulate the systems. We show that traditional uncertainty quantification methods provide, at best, a lower bound on this uncertainty. We propose to obtain bounds on the simulation uncertainties by first determining bounds on the physical quantities or processes relevant to system performance. By bounding these physics processes, as opposed to carrying out statistical analyses of the parameter sets of specific physics models or simply switching out the available physics models, one can obtain upper bounds on the uncertainties in simulated quantities of interest.
Fourth Generation Bound States
Koji Ishiwata; Mark B. Wise
2011-05-25
We investigate the spectrum and wave functions of {\\bar q}'q' bound states for heavy fourth generation quarks (q') that have a very small mixing with the three observed generations of standard model quarks. Such bound states come with different color, spin and flavor quantum numbers. Since the fourth generation Yukawa coupling, \\lambda_{q'}, is large we include all perturbative corrections to the potential between the heavy quark and antiquark of order \\lambda_{q'}^2N_c/16\\pi^2 where N_c is the number of colors, as well as relativistic corrections suppressed by (v/c)^2. We find that the lightest fourth generation quark masses for which a bound state exists for color octet states. For the the color singlet states, which always have a bound state, we analyze the influence that the Higgs couplings have on the size and binding energy of the bound states.
Bounding the Bogoliubov coefficients
Boonserm, Petarpa
2008-01-01
While over the last century or more considerable effort has been put into the problem of finding approximate solutions for wave equations in general, and quantum mechanical problems in particular, it appears that as yet relatively little work seems to have been put into the complementary problem of establishing rigourous bounds on the exact solutions. We have in mind either bounds on parametric amplification and the related quantum phenomenon of particle production (as encoded in the Bogoliubov coefficients), or bounds on transmission and reflection coefficients. Modifying and streamlining an approach developed by one of the present authors [Phys. Rev. A 59 (1999) 427-438], we investigate this question by developing a formal but exact solution for the appropriate second-order linear ODE in terms of a time-ordered exponential of 2x2 matrices, then relating the Bogoliubov coefficients to certain invariants of this matrix. By bounding the matrix in an appropriate manner, we can thereby bound the Bogoliubov coeff...
Multicolor Bound Soliton Molecule
Luo, Rui; Lin, Qiang
2015-01-01
We show a new class of bound soliton molecule that exists in a parametrically driven nonlinear optical cavity with appropriate dispersion characteristics. The composed solitons exhibit distinctive colors but coincide in time and share a common phase, bound together via strong inter-soliton four-wave mixing and Cherenkov radiation. The multicolor bound soliton molecule shows intriguing spectral locking characteristics and remarkable capability of spectrum management to tailor soliton frequencies, which may open up a great avenue towards versatile generation and manipulation of multi-octave spanning phase-locked Kerr frequency combs, with great potential for applications in frequency metrology, optical frequency synthesis, and spectroscopy.
USF System USF USFSP USFSM Number: USF4.0108
Meyers, Steven D.
may be granted a waiver of the out-of-state fee. The credit hours generated must be non-state fundable
USF System USF USFSP USFSM Number: USF12.003
Meyers, Steven D.
this regulation: (a) A "work" includes any copyrightable material such as printed material, computer software, computer programs, computer assisted instructional coursework, programmed instructional materials, three is the property of the employee, who has the right to determine the disposition of such work and the revenue
USF System USF USFSP USFSM Number: USF11.002
Meyers, Steven D.
challenge grants; and other functions and responsibilities of the Foundation under Florida law and pertinent. (4) Trust Fund Challenge Grants established for the endowment of scholarships, library resources resulted in publication or presentation of speeches or papers, (b) Teaching excellence, (c) Ability
Angilella, J R
2010-01-01
The sedimentation of a heavy Stokes particle in a laminar plane or axisymmetric flow is investigated by means of asymptotic methods. We focus on the occurrence of Stommel's retention zones, and on the splitting of their separatrices. The goal of this paper is to analyze under which conditions these retention zones can form, and under which conditions they can break and induce chaotic particle settling. The terminal velocity of the particle in still fluid is of the order of the typical velocity of the flow, and the particle response time is much smaller than the typical flow time-scale. It is observed that if the flow is steady and has an upward streamline where the vertical velocity has a strict local maximum, then inertialess particle trajectories can take locally the form of elliptic Stommel cells, provided the particle terminal velocity is close enough to the local peak flow velocity. These structures only depend on the local flow topology and do not require the flow to have closed streamlines or stagnatio...
Fourth generation bound states
Ishiwata, Koji; Wise, Mark B. [California Institute of Technology, Pasadena, California, 91125 (United States)
2011-04-01
We investigate the spectrum and wave functions of q{sup '}q{sup '} bound states for heavy fourth generation quarks (q{sup '}) that have a very small mixing with the three observed generations of standard model quarks. Such bound states come with different color, spin and flavor quantum numbers. Since the fourth generation Yukawa coupling, {lambda}{sub q}{sup '}, is large we include all perturbative corrections to the potential between the heavy quark and antiquark of order {lambda}{sub q}{sup '2}N{sub c}/16{pi}{sup 2} where N{sub c} is the number of colors, as well as relativistic corrections suppressed by (v/c){sup 2}. We find that the lightest fourth generation quark masses for which a bound state exists for color octet states. For the color singlet states, which always have a bound state, we analyze the influence that the Higgs couplings have on the size and binding energy of the bound states.
Earth's extensive entropy bound
A. M. Lisewski
2012-12-20
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.
Experimental and theoretical studies of isothermal upward gas-liquid flows in vertical tubes
Fernandes, R.C.
1981-01-01
In two-phase flow technolgy, two important problems exist which must be solved as a function of the various physical and system parameters associated with the phenomenon, and which stand as prerequisites for proper modelling of two-phase processes: Prediction of the flow pattern under existing operating conditions and prediction of the holdup for each given flow pattern. Modelling studies of steady isothermal upward gas-liquid flows in vertical pipes, at low pressures, were undertaken. Experimental data on liquid holdup over a wide range of flow rates were taken for all observed flow patterns-bubbly, slug, churn, and annular - by means of a specially designed Quick-Closing Valves System. This technique also allowed the detection of a unique phenomenon occurring in the form of fast-flowing slugs of gas-liquid mixture, in both the churn and annular flow patterns, which was called the lump phenomenon. The lump holdup was measured and a qualitative theory regarding the nature, formation and propagation of these structures was proposed. A photographic method was applied to the slug flow pattern in order to determine both the rise velocity and length of Taylor bubbles and liquid slugs characteristic of this flow regime. Assisted by the measured data, flow pattern-based physical models were developed for predicting holdup of bubbly flows and the detailed structure of slug flows. The latter was accomplished by means of a fairly complete analysis which enabled the prediction of several variables of interest such as void fractions, velocities, film thicknesses and the length ratio between Taylor bubbles and liquid slugs. The average holdup for churn flow was predicted by directly applying the slug flow model to that flow pattern. A simplified framework for calculating the holdup in annular flows was also proposed. The comparison between theory and experiment showed that for bubbly, slug and churn flows the predicted results are in good agreement with the data.
Flow pattern and pressure drop of vertical upward gas-liquid flow in sinusoidal wavy channels
Nilpueng, Kitti [Department of Mechanical Engineering, South East Asia University, Bangkok 10160 (Thailand); Wongwises, Somchai [Fluid Mechanics, Thermal Engineering and Multiphase Flow Research Lab (FUTURE), Department of Mechanical Engineering, King Mongkut's University of Technology Thonburi, Bangmod, Bangkok 10140 (Thailand)
2006-06-15
Flow patterns and pressure drop of upward liquid single-phase flow and air-water two-phase flow in sinusoidal wavy channels are experimentally studied. The test section is formed by a sinusoidal wavy wall of 1.00 m length with a wave length of 67.20mm, an amplitude of 5.76mm. Different phase shifts between the side walls of the wavy channel of 0{sup o}, 90{sup o} and 180{sup o} are investigated. The flow phenomena, which are bubbly flow, slug flow, churn flow, and dispersed bubbly flow are observed and recorded by high-speed camera. When the phase shifts are increased, the onset of the transition from the bubbly flow to the churn flow shifts to a higher value of superficial air velocity, and the regions of the slug flow and the churn flow are smaller. In other words, the regions of the bubbly flow and the dispersed bubbly flow are larger as the phase shift increases. The slug flow pattern is only found in the test sections with phase shifts of 0{sup o} and 90{sup o}. Recirculating gas bubbles are always found in the troughs of the corrugations. The recirculating is higher when the phase shifts are larger. The relationship between the two-phase multipliers calculated from the measured pressure drops, and the Martinelli parameter is compared with the Lockhart-Martinelli correlation. The correlation in the case of turbulent-turbulent condition is shown to fit the data very well for the phase shift of 0{sup o} but shows greater deviation when the phase shifts are higher. (author)
J. Haidenbauer; Ulf-G. Meißner; S. Petschauer
2014-12-09
The existence of baryon-baryon bound states in the strangeness sector is examined in the framework of SU(3) chiral effective field theory. Specifically, the role of SU(3) symmetry breaking contact terms that arise at next-to-leading order in the employed Weinberg power counting scheme is explored. We focus on the 1S0 partial wave and on baryon-baryon channels with maximal isospin since in this case there are only two independent SU(3) symmetry breaking contact terms. At the same time, those are the channels where most of the bound states have been predicted in the past. Utilizing $pp$ phase shifts and $\\Sigma^+ p$ cross section data allows us to pin down one of the SU(3) symmetry breaking contact terms and a clear indication for the decrease of attraction when going from the NN system to strangeness S=-2 is found, which rules out a bound state for $\\Sigma\\Sigma$ with isospin I=2. Assuming that the trend observed for S=0 to S=-2 is not reversed when going to $\\Xi\\Sigma$ and $\\Xi\\Xi$ makes also bound states in those systems rather unlikely.
Raja, Anita
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
CIP Degree Program USF Tampa USF Sarasota-
Meyers, Steven D.
.0401 Urban and Community Design MS 05.0102 American Studies BA, MA 05.0107 Latin American Studies MA 05 Disorders MA 13.1101 Guidance & Counselor Education MA 13.1201 Adult Education MA 13.1202 Elementary & Engineering MS 14.1901 Mechanical Engineering BSME, ME, MME, MSME, MSES, PhD 14.3501 Industrial
Kumar S. Gupta; Siddhartha Sen
2008-06-03
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.
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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin Film SolarTown(LECBP)BioGen LLC JumpForestryForm12
Numerical semigroups Easy bounds on ng
Elizalde, Sergi
Numerical semigroups Easy bounds on ng Improved bounds on ng The number of numerical semigroups #12;Numerical semigroups Easy bounds on ng Improved bounds on ng Motivation Definitions The tree on ng Improved bounds on ng Motivation Definitions The tree T of numerical semigroups Succession rules
Entropy bounds for uncollapsed matter
Abreu, Gabriel
2010-01-01
In any static spacetime the quasilocal Tolman mass contained within a volume can be reduced to a Gauss-like surface integral involving the flux of a suitably defined generalized surface gravity. By introducing some basic thermodynamics, and invoking the Unruh effect, one can then develop elementary bounds on the quasilocal entropy that are very similar in spirit to the holographic bound, and closely related to entanglement entropy.
Entropy bounds for uncollapsed matter
Gabriel Abreu; Matt Visser
2010-11-19
In any static spacetime the quasilocal Tolman mass contained within a volume can be reduced to a Gauss-like surface integral involving the flux of a suitably defined generalized surface gravity. By introducing some basic thermodynamics, and invoking the Unruh effect, one can then develop elementary bounds on the quasilocal entropy that are very similar in spirit to the holographic bound, and closely related to entanglement entropy.
A study on the characteristics of upward air-water two-phase flow in a large diameter pipe
Shen, Xiuzhong; Saito, Yasushi; Mishima, Kaichiro [Research Reactor Institute, Kyoto University, Kumatori-cho, Sennan-gun, Osaka 590-0494 (Japan); Nakamura, Hideo [Nuclear Safety Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195 (Japan)
2006-10-15
An adiabatic upward co-current air-water two-phase flow in a vertical large diameter pipe (inner diameter, D: 0.2m, ratio of pipe length to diameter, L/D: 60.5) was experimentally investigated under various inlet conditions. Flow regimes were visually observed, carefully analyzed and classified into five, i.e. undisturbed bubbly, agitated bubbly, churn bubbly, churn slug and churn froth. Void fraction, bubble frequency, Sauter mean diameter, interfacial area concentration (IAC) and interfacial direction were measured with four-sensor optical probes. Both the measured void fraction and the measured IAC demonstrated radial core-peak distributions in most of the flow regimes and radial wall peak in the undisturbed bubbly flow only. The bubble frequency also showed a wall-peak radial distribution only when the bubbles were small in diameter and the flow was in the undisturbed bubbly flow. The Sauter mean diameter of bubbles did not change much in the radial direction in undisturbed bubbly, agitated bubbly and churn bubbly flows and showed a core-peak radial distribution in the churn slug flow due to the existence of certain amount of large and deformed bubbles in this flow regime. The measurements of interfacial direction showed that the main and the secondary bubbly flow could be displayed by the main flow peak and the secondary flow peak, respectively, in the probability density function (PDF) of the interfacial directional angle between the interfacial direction and the z-axis, {eta}{sub zi}. The local average {eta}{sub zi }at the bubble front or rear hemisphere ({eta}{sub zi}{sup F} and {eta}{sub zi}{sup R}) reflected the local bubble movement and was in direct connection with the flow regimes. Based on the analysis, the authors classified the flow regimes in the vertical large diameter pipe quantitatively by the cross-sectional area-averaged {eta}{sub zi }at bubbly front hemisphere ({eta}{sub zi}{sup F}-bar). Bubbles in the undisturbed bubbly flow moved in a vertical way with some swerving motions and those in other flow regimes moved along the lateral secondary flow with an averaging net upward velocity. (author)
Yang, Dong; Pan, Jie; Zhu, Xiaojing; Bi, Qincheng; Chen, Tingkuan; Zhou, Chenn Q.
2011-02-15
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 600 MW 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 30 MPa, mass flux from 230 to 1200 kg/(m{sup 2} s), and inner wall heat flux from 130 to 720 kW/m{sup 2}. 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. (author)
A Study of Three Dimensional Bubble Velocities at Co-current Gas-liquid Vertical Upward Bubbly Flows
Kuntoro, Hadiyan Yusuf; Deendarlianto,
2015-01-01
Recently, experimental series of co-current gas-liquid upward bubbly flows in a 6 m-height and 54.8 mm i.d. vertical titanium pipe had been conducted at the TOPFLOW thermal hydraulic test facility, Helmholtz-Zentrum Dresden-Rossendorf, Germany. The experiments were initially performed to develop a high quality database of two-phase flows as well as to validate new CFD models. An ultrafast dual-layer electron beam X-ray tomography, named ROFEX, was used as measurement system with high spatial and temporal resolutions. The gathered cross sectional grey value image results from the tomography scanning were reconstructed, segmented and evaluated to acquire gas bubble parameters for instance bubble position, size and holdup. To assign the correct paired bubbles from both measurement layers, a bubble pair algorithm was implemented on the basis of the highest probability values of bubbles in position, volume and velocity. Hereinafter, the individual characteristics of bubbles were calculated include instantaneous th...
Casas, J.C.; Corradini, M.L. (Univ. of Wisconsin-Madison, Nuclear Engineering and Engineering Physics Dept., Madison, WI (US))
1992-07-01
In this paper, investigations are performed to study the mixing between immiscible liquids in a pool configuration due to an upward gas flow. A water-R113 system is sued in the bubbly/churn-turbulent regimes to determine the effects of the unagitated pool depth on layer mixing. The superficial gas velocity at which full mixing is attained is observed to increase with the pool depth, although it is concluded that this is a weak dependency. Mixing in the churn-turbulent regime is studied with Wood's metal-water and Wood's metal-silicone fluid (100 cS) as pairs of fluids. Additional past mixing data from six other fluids are also included in the data base. A criterion is proposed to determine if two liquids will entrain in bubbly or churn-turbulent flow. Correlations are derived that, for a set of given conditions, allow prediction of the mixing state (mixed or segregated) of a system. Because of the indirect method of measuring the mixed layer thickness, pool void fraction experiments are also performed. For the case of water and R113, the effect of unagitated pool depth on the void fraction is studied.
Algorithms Demands and Bounds Applications of Flow
Kabanets, Valentine
2/28/2014 1 Algorithms Demands and Bounds Applications of Flow Networks Design and Analysis of Algorithms Andrei Bulatov Algorithms Demands and Bounds 12-2 Lower Bounds The problem can be generalized) capacities (ii) demands (iii) lower bounds A circulation f is feasible if (Capacity condition) For each e E
Cosmodynamics: Energy conditions, Hubble bounds, density bounds, time and distance bounds
Cattoen, Celine
2007-01-01
We refine and extend a programme initiated by one of the current authors [Science 276 (1997) 88; Phys. Rev. D56 (1997) 7578] advocating the use of the classical energy conditions of general relativity in a cosmological setting to place very general bounds on various cosmological parameters. We show how the energy conditions can be used to bound the Hubble parameter H(z), Omega parameter Omega(z), density rho(z), distance d(z), and lookback time T(z) as (relatively) simple functions of the redshift z, present-epoch Hubble parameter H_0, and present-epoch Omega parameter Omega_0. We compare these results with related observations in the literature, and confront the bounds with the recent supernova data.
Correlation effects and bound states
Zinovjev, G. M.; Molodtsov, S. V.
2012-11-15
Bound states in a simple quark model that are due to correlation effects are analyzed. The confining properties of this model in meson (quark-antiquark and diquark) channels manifest themselves at any quark momenta, and an extra potential field may only enhance the confining effect.
Confidence belts on bounded parameters
J. Bouchez
2000-01-13
We show that the unified method recently proposed by Feldman and Cousins to put confidence intervals on bounded parameters cannot avoid the possibility of getting null results. A modified bayesian approach is also proposed (although not advocated) which ensures no null results and proper coverage.
Laoulache, R.N.; Maeder, P.F.; DiPippo, R.
1987-05-01
A Scheme is developed to describe the upward flow of a two-phase mixture of a single substance in a vertical adiabatic constant area pipe. The scheme is based on dividing the mixture into a homogeneous core surrounded by a liquid film. This core may be a mixture of bubbles in a contiguous liquid phase, or a mixture of droplets in a contiguous vapor phase. Emphasis is placed upon the latter case since the range of experimental measurements of pressure, temperature, and void fraction collected in this study fall in the slug-churn''- annular'' flow regimes. The core is turbulent, whereas the liquid film may be laminar or turbulent. Turbulent stresses are modeled by using Prandtl's mixing-length theory. The working fluid is Dichlorotetrafluoroethane CCIF{sub 2}-CCIF{sub 2} known as refrigerant 114 (R-114); the two-phase mixture is generated from the single phase substance by the process of flashing. In this study, the effect of the Froude and Reynolds numbers on the liquid film characteristics is examined. The compressibility is accounted for through the acceleration pressure gradient of the core and not directly through the Mach number. An expression for an interfacial friction coefficient between the turbulent core and the liquid film is developed; it is similar to Darcy's friction coefficient for a single phase flow in a rough pipe. Finally, an actual steam-water geothermal well is simulated; it is based on actual field data from New Zealand. A similarity theory is used to predict the steam-water mixture pressure and temperature starting with laboratory measurements on the flow of R-114.
Semiclassical bounds in magnetic bottles
Diana Barseghyan; Pavel Exner; Hynek Kovarik; Timo Weidl
2015-01-13
The aim of the paper is to derive spectral estimates into several classes of magnetic systems. They include three-dimensional regions with Dirichlet boundary as well as a particle in $\\mathbb{R}^3$ confined by a local change of the magnetic field. We establish two-dimensional Berezin-Li-Yau and Lieb-Thirring-type bounds in the presence of magnetic fields and, using them, get three-dimensional estimates for the eigenvalue moments of the corresponding magnetic Laplacians.
Analytic bounds on transmission probabilities
Boonserm, Petarpa
2009-01-01
We develop some new analytic bounds on transmission probabilities (and the related reflection probabilities and Bogoliubov coefficients) for generic one-dimensional scattering problems. To do so we rewrite the Schrodinger equation for some complicated potential whose properties we are trying to investigate in terms of some simpler potential whose properties are assumed known, plus a (possibly large) "shift" in the potential. Doing so permits us to extract considerable useful information without having to exactly solve the full scattering problem.
Free bound and bound bound profiles in excitation spectra of the B3 1 X1 0+ transition in CdNg (Ng, the characterization was improved. Morse functions for CdNg (Ng = noble gas) (also Lennard-Jones (12-6) for Cd groups to investigate CdNg (Ng = noble gas) complexes [1,2], and to spectroscopically characterize both
Time-Bounded Verification Joel Ouaknine1
Worrell, James
Time-Bounded Verification JoÂ¨el Ouaknine1 , Alexander Rabinovich2 , and James Worrell1 1 Oxford prob- lems for timed automata over time intervals of fixed, bounded length. One of our main results is that time-bounded language inclusion for timed automata is 2EXPSPACE-complete. We also investigate the satis
Upper and Lower Ramsey Bounds in Bounded (appears in Annals of Pure and Applied
Lisboa, Universidade TĂ©cnica de
Upper and Lower Ramsey Bounds in Bounded Arithmetic (appears in Annals of Pure and Applied Logic bound on the Ramsey number Rr(k) (the r refers to the number of colors, assigned to edges; the k refers to prove two "reversals." To explain this idea we note that the Ramsey upper bound proof for k = 3 (when
Dynamical Bounds for Sturmian Schrödinger Operators
L. Marin
2009-06-10
The Fibonacci Hamiltonian, that is a Schr\\"{o}dinger operator associated to a quasiperiodical sturmian potential with respect to the golden mean has been investigated intensively in recent years. Damanik and Tcheremchantsev developed a method and find a non trivial dynamical upper bound for this model. In this paper, we use this method to generalize to a large family of Sturmian operators dynamical upper bounds and show at sufficently large coupling anomalous transport for operators associated to irrational number with a generic diophantine condition. As a counter example, we exhibit a pathological irrational number which do not verify this condition and show its associated dynamic exponent only has ballistic bound. Moreover, we establish a global lower bound for the lower box counting dimension of the spectrum that is used to obtain a dynamical lower bound for bounded density irrational numbers.
REFINED BOUNDS ON THE NUMBER OF CONNECTED ...
2011-04-06
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 ...
Mesons: Relativistic Bound States with String Tension
Anishetty, R; Anishetty, Ramesh; Kudtarkar, Santosh Kumar
2003-01-01
A systematic method of analysing Bethe-Salpeter equation using spectral representation for the relativistic bound state wave function is given. This has been explicitly applied in the context of perturbative QCD with string tension in the $1 \\over N$ expansion. We show that there are only a few stable bound state mesons due to the small "threshold mass"(constituent mass) of quarks. The asymptotic properties of the bound states are analytically analysed. The spectrum is derived analytically and compared phenomenologically. Chiral symmetry breaking and PCAC results are demonstrated. We make a simple minded observation to determine the size of the bound states as a function of the energy of the boundstate.
Bounds on Transport Coefficients of Porous Media
Berryman, J G
2005-03-21
An analytical formulation of conductivity bounds by Bergman and Milton is used in a different way to obtain rigorous bounds on the real transport coefficients (electrical conductivity, thermal conductivity, and/or fluid permeability) of a fluid-saturated porous medium. These bounds do not depend explicitly on the porosity, but rather on two formation factors--one associated with the pore space and the other with the solid frame. Hashin-Shtrikman bounds for transport in random polycrystals of porous-material laminates will also be discussed.
Habibi, M.; Ghamari, F.
2014-05-15
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.
USF Graduate Catalog 20142015 http://health.usf.edu/publichealth/
Meyers, Steven D.
and evaluation of programs to support healthy lifestyles; Application of technology in public health toxicology and health risk assessment, Ergonomics and occupational heat stress, Occupational data, analysis of environmental data such as air pollution, health outcome evaluation, emdical
USF System USF USFSP USFSM Number: 10-051
Meyers, Steven D.
-plumbing, greywater reuse, and water metering. C. Transportation includes, but is not limited to: p
USF System USF USFSP USFSM Number: 6-016
Meyers, Steven D.
program which includes: Fire Safety, Hazardous Waste Management, Industrial Hygiene, Laboratory Safety
USF System USF USFSP USFSM Number: 6-006
Meyers, Steven D.
, Hazardous Waste Management, Industrial Hygiene, Laboratory Safety, Occupational Safety and Risk Management Safety, #12;Hazardous Waste Management, Industrial Hygiene, Laboratory Safety, Occupational Safety
USF System USF USFSP USFSM Number: 0-301
Meyers, Steven D.
, and department and unit heads must impress the importance of such a commitment upon faculty, students, staff: Research & Innovation Date of Origin: 12-6-89 Date Last Amended: 1-29-09 Date Last Reviewed: 8 only by each individual's firm commitment to academic ideals and integrity. Mentors, project directors
USF System USF USFSP USFSM Number: 0-219
Meyers, Steven D.
and disbursement of Trust Fund Challenge Grants; and other functions and responsibilities of the Foundation under of South Florida. 1. Endowments for Scholarships, Library Resources, Academic Programs, and Other Endowed Activities. Trust Fund Challenge Grants established for the endowment of scholarships, library resources
USF System USF USFSP USFSM Number: 0-515
Meyers, Steven D.
Information Responsible Office: Information Technology Date of Origin: 6-29-06 Date Last Amended: 12 identity information which it collects in its technology systems. In support of its mission of teaching information that it maintains in its technology systems. Personal identity information must be protected from
USF System USF USFSP USFSM Number: 10-051
Meyers, Steven D.
of clean energy, increasing energy efficiency, and diminishing life-cycle impacts and our consumption environments (including water management), transportation, energy, and consumption (waste and recycling to: materials reuse and building renovation, retrofitting, green building, smart masonry, materials
Resetting Bounding Nodes in Acquiring Spanish
Cebreiros, Ramiro
1996-01-01
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...
TIGHT BOUNDS ON EXPECTED ORDER STATISTICS
Bertsimas, Dimitris
TIGHT BOUNDS ON EXPECTED ORDER STATISTICS DIIIMMMIIITTTRRRIIISSS BEEERRRTTTSSSIIIMMMAAASSS Sloan@nus.edu.sg In this article, we study the problem of finding tight bounds on the expected value of the kth-order statistic E of the highest-order statistic E @Xn:n# can be computed with a bisection search algo- rithm+ An extremal discrete
BOUND SYSTEMS 4.A Binding Energy
Boal, David
CHAPTER 4 BOUND SYSTEMS 4.A Binding Energy The mass-energy equation (3.2) is valid for a single linear momentum and its energy. While we introduced the equation in order to describe the energy is measurable. The implication of (4.1) taken with (3.2) is that the mass energy of a bound state is less than
A Bound on Equipartition of Energy
Nicolo' Masi
2015-10-13
In this article we want to demonstrate that the time-scale constraints for a thermodynamic system imply the new concept of {\\it equipartition of energy bound} (EEB) or, more generally, a thermodynamical bound for the {\\it partition} of energy. We theorized and discussed the possibility to put an upper limit to the equipartition factor for a fluid of particles. This could be interpreted as a sort of transcription of the entropy bounds from quantum-holographic sector: the EEB number $\\pi^{2}/2 = 4.93$, obtained from a comparison between the Margolus-Levitin quantum theorem and the TTT bound for relaxation times by Hod, seems like a special value for the thermodynamics of particle systems. This bound has been related to the idea of an extremal statistics and independently traced in a statistical mechanics framework, analyzing the mathematical behavior of the distributions which obey to a thermodynamical statistics with a power law greater than the planckian one.
New bounds on isotropic Lorentz violation
Chris Carone; Marc Sher; Marc Vanderhaeghen
2006-09-19
Violations of Lorentz invariance that appear via operators of dimension four or less are completely parameterized in the Standard Model Extension (SME). In the pure photonic sector of the SME, there are nineteen dimensionless, Lorentz-violating parameters. Eighteen of these have experimental upper bounds ranging between 10{sup -11} and 10{sup -32}; the remaining parameter, ktr, is isotropic and has a much weaker bound of order 10{sup -4}. In this Brief Report, we point out that ktr gives a significant contribution to the anomalous magnetic moment of the electron and find a new upper bound of order 10{sup -8}. With reasonable assumptions, we further show that this bound may be improved to 10{sup -14} by considering the renormalization of other Lorentz-violating parameters that are more tightly constrained. Using similar renormalization arguments, we also estimate bounds on Lorentz violating parameters in the pure gluonic sector of QCD.
Undergraduate Parallel Computing at USF
Barr, Valerie
: one with four dual-core Opterons, two with two quad-core Xeons · All systems run versions of Fedora
Taitel, Y. (Tel-Aviv Univ., Israel); Bornea, D.; Dukler, A.E.
1980-05-01
Models for predicting flow patterns in steady upward gas-liquid flow in vertical tubes (such as production-well tubing) delineate the transition boundaries between each of the four basic flow patterns for gas-liquid flow in vertical tubes: bubble, slug, churn, and dispersed-annular. Model results suggest that churn flow is the development region for the slug pattern and that bubble flow can exist in small pipes only at high liquid rates, where turbulent dispersion forces are high. Each transition depends on the flow-rate pair, fluid properties, and pipe size, but the nature of the dependence is different for each transition because of differing control mechanisms. The theoretical predictions are in reasonably good agreement with a variety of published flow maps based on experimental data.
Sound velocity bound and neutron stars
Paulo F. Bedaque; Andrew W. Steiner
2015-01-25
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.
Unlocking the Mysteries of the Bounding Box
Caldwell, Douglas R.
2005-08-29
,50). This bounding box has a width of 360 degrees, rather than 20 degrees, exaggerating by eighteen times the width of the Boxtopia. The Global Gotchas can be clearly seen in Figure 3, where Russia, the United States, Kiribati, Fiji, New Zealand... Bounding Rectangle," MiMi.hu, http://en.mimi.hu/gis/ Page 18 minimum_bounding_rectangle.html 2. Open GIS Consortium, Inc., OpenGIS? Geography Markup Language (GML) Implementation Specification, OGC 02-023r4, Version 3.0, January 29, 2003. https://portal...
Laboratory Bounds on Electron Lorentz Violation
Brett Altschul
2010-05-17
Violations of Lorentz boost symmetry in the electron and photon sectors can be constrained by studying several different high-energy phenomenon. Although they may not lead to the strongest bounds numerically, measurements made in terrestrial laboratories produce the most reliable results. Laboratory bounds can be based on observations of synchrotron radiation, as well as the observed absences of vacuum Cerenkov radiation. Using measurements of synchrotron energy losses at LEP and the survival of TeV photons, we place new bounds on the three electron Lorentz violation coefficients c_(TJ), at the 3 x 10^(-13) to 6 x 10^(-15) levels.
Decays of Fourth Generation Bound States
V. F. Dmitriev; V. V. Flambaum
2012-08-28
We consider the decay modes of the heavy $q^\\prime\\bar{q^\\prime}$ bound states originating from Higgs boson exchange between quark -- anti-quark pair. In case of a small coupling between the fourth and lower generation the main decay mode is $q^\\prime\\bar{q^\\prime}$ annihilation. We show that for a vector state the dominant decay modes are Higgs-gamma and Higgs-Z decays, while for a pseudoscalar state the strong two-gluon decay mode dominates. The bound states are very narrow. The ratio of the total width to the binding energy is less than 1% if we are not extremely close to the critical quark mass where the binding energy is very small. The discussed decay modes exist for any fermion-antifermion bound states including heavy leptons and heavy neutrinos if their masses are high enough to form a bound state due to attractive Higgs boson exchange potential.
Cellulose-Bound Magnesium Diboride Superconductivity
Ryan, Dominic
Cellulose-Bound Magnesium Diboride Superconductivity Y.L. Lin and M.O. Pekguleryuz Department a cellulose based polymer. Cellulose tends to react only very weekly and is very robust, hence constitutes
Optimized Simple Bounds for Diversity Systems
Conti, Andrea
Diversity techniques play a key role in modern wireless systems, whose design benefits from a clear understanding of how these techniques affect system performance. To this aim we propose a simple class of bounds, whose ...
Entropy bounds for uncollapsed rotating bodies
Abreu, Gabriel
2010-01-01
Entropy bounds in black hole physics, based on a wide variety of different approaches, have had a long and distinguished history. Recently the current authors have turned attention to uncollapsed systems and obtained a robust entropy bound for uncollapsed static spherically symmetric configurations. In the current article we extend this bound to rotating systems. This extension is less simple than one might at first suppose. Purely classically, (using only classical general relativity and basic thermodynamics), it is possible to show that the entropy of uncollapsed matter inside a region enclosed by a surface of area A is bounded from above by S = max kappa(FIDOs) / (2 pi). Thus, using only classical general relativity, basic thermodynamics, and the Unruh effect, we are able to argue that for uncollapsed matter S <= {1/2} A.
Theory and Modeling of Weakly Bound/Physisorbed Materials for...
Office of Energy Efficiency and Renewable Energy (EERE) 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...
Reducing Concurrent Analysis Under a Context Bound to Sequential Analysis
Reps, Thomas W.
a context bound as context- bounded analysis (CBA). Previous work has shown the value of CBA: KISS [19], a model checker for CBA with a fixed context bound of 2, found numerous bugs 1 A context switch is said-mentioned work, this paper addresses CBA with any given context bound and with different program abstractions
Reducing Concurrent Analysis Under a Context Bound to Sequential Analysis
Reps, Thomas W.
refer to analysis of concurrent programs under a context bound as context-bounded analysis (CBA). Previous work has shown the value of CBA: KISS [17], a model checker for CBA with a fixed context bound-mentioned work, this paper addresses CBA with any given context bound and with different program abstractions
Elekes, Z.; Dombradi, Zs.; Fueloep, Zs. [Institute of Nuclear Research of the Hungarian Academy of Sciences, P.O. Box 51, Debrecen H-4001 (Hungary); Saito, A.; Baba, H.; Iwasaki, H.; Notani, M.; Ohnishi, T. K.; Ong, H. J.; Sakurai, H.; Shimoura, S.; Tamaki, M. [University of Tokyo, Tokyo 1130033 (Japan); Aoi, N.; Imai, N.; Ishihara, M.; Kishida, T.; Kubo, T.; Michimasa, S.; Minemura, T.; Motobayashi, T. [Institute of Physical and Chemical Research, 2-1 Hirosawa, Wako, Saitama 351-0198 (Japan)] (and others)
2006-03-13
The 1H(27F,25,26,27F) reactions have been studied at 40 MeV/nucleon average energy using a liquid hydrogen target. For 25F, 26F and 27F nuclei, we have observed two {gamma}-ray peaks each originating from the decay of two bound excited states. This is the first sign of the existence of bound excited states in 26,27F. The presence of a single bound excited state in 27F is a clear indication of a substantial change in the structure of the fluorine isotopes approaching the neutron dripline. The proposed second excited states in 25,26,27F nuclei have no counterparts in either the psd or the sdpf shell model calculations suggesting the appearance of nuclear structure effects lying out of these model spaces.
Tanaka, T.; Abe, K.; Hayato, Y.; Iida, T.; Kameda, J.; Koshio, Y.; Kouzuma, Y.; Miura, M.; Moriyama, S.; Nakahata, M.; Nakayama, S.; Obayashi, Y.; Sekiya, H.; Shiozawa, M.; Suzuki, Y.; Takeda, A.; Takenaga, Y.; Ueno, K.; Ueshima, K.; Yamada, S.; Collaboration: Super-Kamiokande Collaboration; and others
2011-12-01
We present the result of an indirect search for high energy neutrinos from Weakly Interacting Massive Particle (WIMP) annihilation in the Sun using upward-going muon (upmu) events at Super-Kamiokande. Data sets from SKI-SKIII (3109.6 days) were used for the analysis. We looked for an excess of neutrino signal from the Sun as compared with the expected atmospheric neutrino background in three upmu categories: stopping, non-showering, and showering. No significant excess was observed. The 90% C.L. upper limits of upmu flux induced by WIMPs of 100 GeV c{sup -2} were 6.4 Multiplication-Sign 10{sup -15} cm{sup -2} s{sup -1} and 4.0 Multiplication-Sign 10{sup -15} cm{sup -2} s{sup -1} for the soft and hard annihilation channels, respectively. These limits correspond to upper limits of 4.5 Multiplication-Sign 10{sup -39} cm{sup -2} and 2.7 Multiplication-Sign 10{sup -40} cm{sup -2} for spin-dependent WIMP-nucleon scattering cross sections in the soft and hard annihilation channels, respectively.
Studies on upward flame spread
Gollner, Michael J.
2012-01-01
5.3: Progression of the pyrolysis front. . . . . . . . .100 x Figure A.5: Pyrolysis heights measured by surface3.5.2 Pyrolysis Heights . . . . . . . . . . . . vi 3.5.3
Studies on upward flame spread
Gollner, Michael J.
2012-01-01
heat-release rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .pyrolysis height as a function of heat-release rate per unitis proportional to the heat-release rate shown only during
Studies on upward flame spread
Gollner, Michael J.
2012-01-01
has been devoted to thermoplastics, PMMA being the materialthat often found for thermoplastic materials but higher thanfront face. Unlike most thermoplastic fuels used in previous
Bound states in the Higgs model
Di Leo, L.; Darewych, J.W. )
1994-02-01
We derive relativistic wave equations for the bound states of two Higgs bosons within the Higgs sector of the minimal standard model. The variational method and the Hamiltonian formalism of QFT are used to obtain the equations using a simple [vert bar][ital hh][r angle]+[vert bar][ital hhh][r angle] Fock-space ansatz. We present approximate solutions of these equations for a range of Higgs boson masses, and explore the parameter space which corresponds to the existence of two-Higgs-boson bound states.
Violation of Energy Bounds in Designer Gravity
Thomas Hertog
2006-07-31
We continue our study of the stability of designer gravity theories, where one considers anti-de Sitter gravity coupled to certain tachyonic scalars with boundary conditions defined by a smooth function W. It has recently been argued there is a lower bound on the conserved energy in terms of the global minimum of W, if the scalar potential arises from a superpotential P and the scalar reaches an extremum of P at infinity. We show, however, there are superpotentials for which these bounds do not hold.
Weakly bound electrons in external magnetic field
I. V. Mamsurov; F. Kh. Chibirova
2007-03-07
The effect of the uniform magnetic field on the electron in the spherically symmetric square-well potential is studied. A transcendental equation that determines the electron energy spectrum is derived. The approximate value of the lowest (bound) energy state is found. The approximate wave function and probability current density of this state are constructed.
Redshift-space limits of bound structures
Rolando Dünner; Andreas Reisenegger; Andrés Meza; Pablo A. Araya; Hernán Quintana
2007-02-26
An exponentially expanding Universe, possibly governed by a cosmological constant, forces gravitationally bound structures to become more and more isolated, eventually becoming causally disconnected from each other and forming so-called "island universes". This new scenario reformulates the question about which will be the largest structures that will remain gravitationally bound, together with requiring a systematic tool that can be used to recognize the limits and mass of these structures from observational data, namely redshift surveys of galaxies. Here we present a method, based on the spherical collapse model and N-body simulations, by which we can estimate the limits of bound structures as observed in redshift space. The method is based on a theoretical criterion presented in a previous paper that determines the mean density contrast that a spherical shell must have in order to be marginally bound to the massive structure within it. Understanding the kinematics of the system, we translated the real-space limiting conditions of this "critical" shell to redshift space, producing a projected velocity envelope that only depends on the density profile of the structure. From it we created a redshift-space version of the density contrast that we called "density estimator", which can be calibrated from N-body simulations for a reasonable projected velocity envelope template, and used to estimate the limits and mass of a structure only from its redshift-space coordinates.
Bounds on Schrodinger Eigenvalues for Polynomial Potentials
Hall, Richard L.
West, Montr eal, Qu ebec, Canada H3G 1M8. Abstract If a single particle obeys non-relativistic QM in RN generality and simplicity. All the parametric dependence of the eigenvalue is captured by the energy in dimensions 1 to 10. II Energy bounds The derivation
Online Deadline Scheduling with Bounded Energy Efficiency
Wong, Prudence W.H.
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
Upper bounds for Steklov eigenvalues on surfaces
Girouard, Alexandre
2012-01-01
We give explicit isoperimetric upper bounds for all Steklov eigenvalues of a compact orientable surface with boundary, in terms of the genus, the length of the boundary, and the number of boundary components. Our estimates generalize a recent result of Fraser-Schoen, as well as the classical inequalites obtained by Hersch-Payne-Schiffer, whose approach is used in the present paper.
Out of Bounds Additive Manufacturing Christopher
Pennycook, Steve
#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
Learning Bounds for Importance Weighting Corinna Cortes
Mohri, Mehryar
- - - - - - - - - - - - - - - - - - - - - - - - - - - + + - - - - - - - - - + + - - - - - - - - + + - - - - - - - - - + + - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - x x x 20 100 500 5000 0.0 0.2 0.4 0.6 0.8 1.0 Train interest. We use these bounds to guide the definition of an alternative reweighting algorithm and report between the two distributions. For example, in web search applications, there may be data regarding users
Bi-dipole-bound anions Maciej Gutowskia
Simons, Jack
Bi-dipole-bound anions Maciej Gutowskia *, Piotr Skurskib,c , Jack Simonsb a Materials Resources is capable of electron binding, is studied using electronic structure methods. The destabilizing effects) [18]. In the former case, it is natural to analyze the binding of the extra electron in terms of its
Extremum seeking with bounded update rates
Scheinker, Alexander; Krsti?, Miroslav
2013-11-16
In this work, we present a form of extremum seeking (ES) in which the unknown function being minimized enters the system’s dynamics as the argument of a cosine or sine term, thereby guaranteeing known bounds on update rates and control efforts. We present general n-dimensional optimization and stabilization results as well as 2D vehicle control, with bounded velocity and control efforts. For application to autonomous vehicles, tracking a source in a GPS denied environment with unknown orientation, this ES approach allows for smooth heading angle actuation, with constant velocity, and in application to a unicycle-type vehicle results in control ability as if the vehicle is fully actuated. Our stability analysis is made possible by the classic results of Kurzweil, Jarnik, Sussmann, and Liu, regarding systems with highly oscillatory terms. In our stability analysis, we combine the averaging results with a semi-global practical stability result under small parametric perturbations developed by Moreau and Aeyels.
Axel Maas; Daniel Zwanziger
2013-01-15
We derive some exact bounds on the free energy $W(J)$ in QCD, where $J_\\mu^b$ is a source for the gluon field $A_\\mu^b$ in the minimal Landau gauge, and $W(J)$ is the generating functional of connected gluon correlators. Among other results, we show that for a static source $J(x) = h$ the free energy vanishes, $W(h) = 0$, together with its first derivative, ${\\partial W(h) \\over \\partial h} = 0,$ for all $h$, no matter how strong. Thus the system does not respond to a static color probe. We also present numerical evaluations of the free energy $W(J)$ and find that the bounds are well satisfied and in fact undersaturated.
Performance bound for quantum absorption refrigerators
Luis A. Correa; José P. Palao; Gerardo Adesso; Daniel Alonso
2013-04-29
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.
Semirelativistic Bound-State Equations: Trivial Considerations
Wolfgang Lucha; Franz F. Schöberl
2014-07-17
Observing renewed interest in long-standing (semi-) relativistic descriptions of bound states, we would like to make a few comments on the eigenvalue problem posed by the spinless Salpeter equation and, illustrated by the examples of the nonsingular Woods-Saxon potential and the singular Hulth\\'en potential, recall elementary tools that practitioners looking for analytic albeit approximate solutions might find useful in their quest.
Bounds on Some Ramsey Numbers Involving Quadrilateral +
Radziszowski, Stanislaw P.
Bounds on Some Ramsey Numbers Involving Quadrilateral + Xiaodong Xu Guangxi Academy of Sciences@cs.rit.edu Abstract. For graphs G 1 , G 2 , Â· Â· Â· , Gm , the Ramsey number R(G 1 , G 2 , Â· Â· Â· , Gm ) is defined Ramsey numbers involving quadrilateral C 4 , including R(C 4 , K 9 ) # 32, 19 # R(C 4 , C 4 , K 4 ) # 22
MULTI-DEGREE BOUNDS ON THE BETTI NUMBERS OF REAL ...
2015-07-28
Jul 28, 2015 ... Multidegree bounds, Betti numbers, Smith inequalities, semi-algebraic sets, polynomial partitioning, incidence problems. Basu was partially ...
The Quantum Chemistry of Loosely-Bound Electrons
Herbert, John
CHAPTER 8 The Quantum Chemistry of Loosely-Bound Electrons John M. Herbert Department of Chemistry-Bound Electron? By some measure, the title of this chapter could have been "The quantum chemistry of weakly-bound anions," because much of it will focus on how to describe the weak binding of an "extra" electron
Interprocedural Analysis of Concurrent Programs Under a Context Bound
Reps, Thomas W.
programs under a context bound context-bounded analysis (CBA). CBA does not impose any bound that may be reached after a context switch. Because of this, CBA still considers an infinite number Graduate Fellowship. #12;Qadeer and Rehof [23] showed that CBA is decidable for recursive programs under
Constructive Lower Bounds on Classical Multicolor Ramsey Numbers
Radziszowski, Stanislaw P.
Constructive Lower Bounds on Classical Multicolor Ramsey Numbers Xu Xiaodong and Xie Zheng bounds for classical multicolor Ramsey numbers, first by giving a short overview of past results-diagonal multicolor Ramsey numbers. In particular, we improve several lower bounds for Rk(4) and Rk(5) for some small
Constructive Lower Bounds on Classical Multicolor Ramsey Numbers
Radziszowski, Stanislaw P.
Constructive Lower Bounds on Classical Multicolor Ramsey Numbers Xu Xiaodong and Xie Zheng studies lower bounds for classical multicolor Ramsey numbers, #12;rst by giving a short overview of past diagonal and o#11;-diagonal multicolor Ramsey numbers. In particular, we improve several lower bounds for R
New Computational Upper Bounds for Ramsey Numbers R(3, k)
Radziszowski, Stanislaw P.
New Computational Upper Bounds for Ramsey Numbers R(3, k) Jan Goedgebeur Department of Applied computational techniques we derive six new upper bounds on the classical two- color Ramsey numbers: R(3, 10) 42) 42. Keywords: Ramsey number; upper bound; computation the electronic journal of combinatorics XX
COMPLETE BOUNDED NULL CURVES IMMERSED IN C3
Martín, Francisco
COMPLETE BOUNDED NULL CURVES IMMERSED IN C3 AND SL(2, C) FRANCISCO MARTIN, MASAAKI UMEHARA, AND KOTARO YAMADA ABSTRACT. We construct a simply connected complete bounded Bryant surface in the hyperbolic 3-space H3. Such a surface in H3 can be lifted as a complete bounded null curve in SL(2, C). Using
Simultaneous proof of the dimensional and of Jacobi's bound
Ollivier, FranĂ§ois
Simultaneous proof of the dimensional conjecture and of Jacobi's bound F. Ollivier LIX, UMR CNRSÂ30 2010. Introduction Jacobi's bound, probably formulated by Jacobi around 1840 [2] is an upper bound that the differential codimension of a component defined by a system of r equations is at most r, showing that Jacobi
Lower Bounds on Interactive Compressibility by Constant-Depth Circuits
Edinburgh, University of
Lower Bounds on Interactive Compressibility by Constant-Depth Circuits Arkadev Chattopadhyay to prove the first lower bounds on general probabilistic multi-round instance compression. We show, and strengthens results of Dubrov and Ishai [DI06]. We also show that a similar lower bound holds for Majority. We
Asynchronous Forward-Bounding for Distributed Constraints Optimization
Meisels, Amnon
and Bound scheme. Agents extend a partial solution as long as the lower bound on its cost, does not exceed the bounds on the cost of solutions by sending copies of the partial assignment to all unas- signed agents, attempting to generate a solution that is globally optimal with respect to the costs of constraints between
Upper Bounds on Coarsening Rates in Demixing Binary Viscous Liquids
Otto, Felix
bounds on the energy landscape into bounds on the dynamics. The bounds on the energy landscape relate the energy functional (given by the driving ther- modynamics -- here interfacial energy) to the intrinsic of Applied Mathematics, University of Bonn, 53115 Bonn, Germany 1 #12;1 Introduction 1.1 Background from
Rigorous bounds on Transmission, Reflection, and Bogoliubov coefficients
Boonserm, Petarpa
2009-01-01
This thesis describes the development of some basic mathematical tools of wide relevance to mathematical physics. Transmission and reflection coefficients are associated with quantum tunneling phenomena, while Bogoliubov coefficients are associated with the mathematically related problem of excitations of a parametric oscillator. While many approximation techniques for these quantities are known, very little is known about rigorous upper and lower bounds. In this thesis four separate problems relating to rigorous bounds on transmission, reflection and Bogoliubov coefficients are considered, divided into four separate themes: 1) Bounding the Bogoliubov coefficients; 2) Bounding the greybody factors for Schwarzschild black holes; 3) Transformation probabilities and the Miller--Good transformation; 4) Analytic bounds on transmission probabilities.
Extremum seeking with bounded update rates
DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)
Scheinker, Alexander; Krsti?, Miroslav
2013-11-16
In this work, we present a form of extremum seeking (ES) in which the unknown function being minimized enters the system’s dynamics as the argument of a cosine or sine term, thereby guaranteeing known bounds on update rates and control efforts. We present general n-dimensional optimization and stabilization results as well as 2D vehicle control, with bounded velocity and control efforts. For application to autonomous vehicles, tracking a source in a GPS denied environment with unknown orientation, this ES approach allows for smooth heading angle actuation, with constant velocity, and in application to a unicycle-type vehicle results in control abilitymore »as if the vehicle is fully actuated. Our stability analysis is made possible by the classic results of Kurzweil, Jarnik, Sussmann, and Liu, regarding systems with highly oscillatory terms. In our stability analysis, we combine the averaging results with a semi-global practical stability result under small parametric perturbations developed by Moreau and Aeyels.« less
Improved Bounds on Universal Extra Dimensions
Thomas Flacke
2006-05-13
We report on recent constraints on models with a flat ``universal'' extra dimension in which all Standard Model fields propagate in the bulk. A significantly improved constraint on the compactification scale is obtained from the extended set of electroweak precision observables accurately measured at LEP1 and LEP2. We find a lower bound of 1/R > 700 (800) GeV at the 99% (95%) confidence level. Comparison of this constraint with the relic density of Kaluza-Klein dark matter for the Minimal UED model points towards the necessity of including non-minimal boundary terms which motivates studying alternative Kaluza-Klein dark matter candidates. Results for the one-loop induced magnetic dipole moment for Kaluza-Klein neutrino dark matter are presented. This talk is based on Phys.Rev.D73:095002,2006 and hep-ph/0601161.
Bounding biomass in the Fisher equation
Birch, Daniel A; Young, William R
2007-01-01
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.
Bounding biomass in the Fisher equation
Daniel A. Birch; Yue-Kin Tsang; William R. Young
2007-03-17
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.
Small-Scale Structure of Spacetime: Bounds and Conjectures
Klinkhamer, F. R.
2008-03-06
This review consists of two parts. The first part establishes certain astrophysical bounds on the smoothness of classical spacetime.Some of the best bounds to date are based on the absence of vacuum Cherenkov radiation in ultrahigh-energy cosmic rays. The second part discusses possible implications of these bounds for the quantum structure of spacetime. One conjecture is that the fundamental length scale of quantum spacetime may be different from the Planck length.
MULTI-DEGREE BOUNDS ON THE BETTI NUMBERS OF REAL ...
2015-07-28
Jul 28, 2015 ... problem posed in their paper – on extending their bounds on the number of connected ... sets, polynomial partitioning, incidence problems.
Generalized Hofmann quantum process fidelity bounds for quantum filters
Michal Sedlak; Jaromír Fiurášek
2015-06-11
We propose and investigate bounds on quantum process fidelity of quantum filters, i.e. probabilistic quantum operations represented by a single Kraus operator K. These bounds generalize the Hofmann bounds on quantum process fidelity of unitary operations [H.F. Hofmann, Phys. Rev. Lett. 94, 160504 (2005)], and are based on probing the quantum filter by pure states forming two mutually unbiased bases. Determination of these bounds therefore requires much less measurements than full quantum process tomography. We find that it is particularly suitable to construct one of the probe basis from the right eigenstates of K, because in this case the bounds are tight in the sense that if the actual filter coincides with the ideal one then both the lower and upper bounds are equal to one. We theoretically investigate application of these bounds to a two-qubit optical quantum filter formed by interference of two photons on a partially polarizing beam splitter. For experimentally convenient choice of factorized input states and measurements we study the tightness of the bounds. We show that more stringent bounds can be obtained by more sophisticated processing of the data using convex optimization and we compare our methods for different choice of the input probe states.
Optimization Online - Bound Improvement for LNG Inventory Routing
Feb 14, 2014 ... Bound Improvement for LNG Inventory Routing. Yufen Shao (yufen.shao ***at*** exxonmobil.com) Kevin Furman (kevin.c.furman ***at*** ...
Algorithm for Lot Sizing with Inventory Bounds and Fixed Costs
Alper Atamturk
2007-06-26
Jun 26, 2007 ... An O(n^2) Algorithm for Lot Sizing with Inventory Bounds and Fixed Costs. Alper Atamturk (atamturk ***at*** berkeley.edu) Simge Kucukyavuz ...
Tsirelson's bound from a Generalised Data Processing Inequality
Dahlsten, Oscar C O; Renner, Renato
2011-01-01
The strength of quantum correlations is bounded from above by Tsirelson's bound. We establish a connection between this bound and the fact that correlations between two systems cannot increase under local operations, a property known as the \\emph{data processing inequality}. More specifically, we consider arbitrary convex probabilistic theories. These can be equipped with an entropy measure that naturally generalizes the von Neumann entropy, as shown recently in [Short and Wehner]. We prove that if the data processing inequality holds with respect to this generalized entropy measure then the underlying theory necessarily respects Tsirelson's bound. We moreover generalise this statement to any entropy measure satisfying certain minimal requirements.
Optimization Online - Lower Bounds on Complexity of Lyapunov ...
Amir Ali Ahmadi
2015-04-14
Apr 14, 2015 ... Lower Bounds on Complexity of Lyapunov Functions for Switched Linear Systems. Amir Ali Ahmadi(a_a_a ***at*** princeton.edu) Raphael ...
Approximation Hardness of TSP with Bounded Metrics (Revised Version)
Eckmiller, Rolf
inequality---within that conÂ stant. This lower bound was improved by Engebretsen [8] to 2805=2804 \\Gamma ffl
Sharp upper bounds on the number of the scattering poles
We study the scattering poles of a compactly supported “black box” perturbations of the Laplacian in Rn, n odd. We prove a sharp upper bound of the counting ...
Diffusivity bounds for 1D Brownian polymers
Pierre Tarrčs; Bálint Tóth; Benedek Valkó
2012-06-08
We study the asymptotic behavior of a self-interacting one-dimensional Brownian polymer first introduced by Durrett and Rogers [Probab. Theory Related Fields 92 (1992) 337--349]. The polymer describes a stochastic process with a drift which is a certain average of its local time. We show that a smeared out version of the local time function as viewed from the actual position of the process is a Markov process in a suitably chosen function space, and that this process has a Gaussian stationary measure. As a first consequence, this enables us to partially prove a conjecture about the law of large numbers for the end-to-end displacement of the polymer formulated in Durrett and Rogers [Probab. Theory Related Fields 92 (1992) 337--349]. Next we give upper and lower bounds for the variance of the process under the stationary measure, in terms of the qualitative infrared behavior of the interaction function. In particular, we show that in the locally self-repelling case (when the process is essentially pushed by the negative gradient of its own local time) the process is super-diffusive.
New Approach to Bounded Quantum--Mechanical Models
Francisco M. Fernández
2008-05-21
We develop an approach for the treatment of one--dimensional bounded quantum--mechanical models by straightforward modification of a successful method for unbounded ones. We apply the new approach to a simple example and show that it provides solutions to both the bounded and unbounded type of models simultaneously
Solving LWE problem with bounded errors in polynomial time
International Association for Cryptologic Research (IACR)
Solving LWE problem with bounded errors in polynomial time Jintai Ding1,2 Southern Chinese call the learning with bounded errors (LWBE) problems, we can solve it with complexity O(nD ). Keywords, this problem corresponds to the learning parity with noise (LPN) problem. There are several ways to solve
Bound states in a hyperbolic asymmetric double-well
Hartmann, R. R.
2014-01-15
We report a new class of hyperbolic asymmetric double-well whose bound state wavefunctions can be expressed in terms of confluent Heun functions. An analytic procedure is used to obtain the energy eigenvalues and the criterion for the potential to support bound states is discussed.
Fundamental Bounds on the Accuracy of Network Performance Measurements
Roughan, Matthew
Fundamental Bounds on the Accuracy of Network Performance Measurements Matthew Roughan School.roughan@adelaide.edu.au> ABSTRACT This paper considers the basic problem of "how accurate can we make Internet performance of Heisenberg inequal- ity describing the bounds in our knowledge of the performance of a network. The results
Fundamental Bounds on the Accuracy of Network Performance Measurements
Roughan, Matthew
Fundamental Bounds on the Accuracy of Network Performance Measurements Matthew Roughan School.roughan@adelaide.edu.au> ABSTRACT This paper considers the basic problem of ``how accurate can we make Internet performance of Heisenberg inequal ity describing the bounds in our knowledge of the performance of a network. The results
Radio-Frequency Rectification on Membrane Bound Pores
Sujatha Ramachandran; Robert H. Blick; Daniel W. van der Weide
2007-09-12
We present measurements on direct radio-frequency pumping of ion channels and pores bound in bilipid membranes. We make use of newly developed microcoaxes, which allow delivering the high frequency signal in close proximity to the membrane bound proteins and ion channels. We find rectification of the radio-frequency signal, which is used to pump ions through the channels and pores.
Bounds for Ramsey numbers in multipartite Eugene Heinz Stipp
van Vuuren, Jan H.
Bounds for Ramsey numbers in multipartite graphs Eugene Heinz Stipp Submitted in partial fulfilment-Committee B. #12;iv Â ABSTRACT Â The notion of a classical graph theoretic Ramsey number is generalized as in the standard definition. Some small multipartite Ramsey numbers are found, while upper- and lower bounds
More Constructive Lower Bounds on Classical Ramsey Numbers
Radziszowski, Stanislaw P.
More Constructive Lower Bounds on Classical Ramsey Numbers Xiaodong Xu Guangxi Academy of Sciences Abstract. We present several new constructive lower bounds for classical Ramsey numbers. In particular that for all integers k, l, with k 5 and l 3, the connectivity of any Ramsey-critical (k, l
ECONOMIC OPPORTUNITY AND EVOLUTION: BEYOND LANDSCAPES AND BOUNDED RATIONALITY*
Longo, Giuseppe
ECONOMIC OPPORTUNITY AND EVOLUTION: BEYOND LANDSCAPES AND BOUNDED RATIONALITY* TEPPO FELIN://www.di.ens.fr/users/longo/ * In Strat. Entrepreneurship Journal, 8, issue 4: 269282 (2014). #12;ECONOMIC OPPORTUNITY AND EVOLUTION: BEYOND LANDSCAPES AND BOUNDED RATIONALITY ABSTRACT The nature of economic opportunity has recently
Two-photon bound state in self-focusing media
Chiao, R.Y.; Deutsch, I.H. ); Garrison, J.C. )
1991-09-09
We derive a two-photon bound-state solution to the problem of quantum propagation of light in Kerr-effect nonlinear media which classically would exhibit self-focusing and self-trapping. We propose an experiment to see this two-photon bound state.
MAX-PLANCK-INSTITUT.. ( Lower Bounds for Set Intersection
. Mehlhorn R. Raman C. Uhrig MPI- I-92-127 October 1992 o mPD_ _ _ _ _ _ _ IN F 0 R M AT I K _ _ _ _ __ Im Stadtwald 66123 Saarbrücken Germany #12;Lower Bounds for Set Intersection Queries P. Dietz K. Mehlhorn R. Raman C. Uhrig MPI-I-92-127 October 1992 #12;Lower Bounds for Set Intersection Queries PAUL DIETZ KURT
Bounded Uncertainty Roadmaps for Path Planning Leonidas J. Guibas1
Guibas, Leonidas J.
Bounded Uncertainty Roadmaps for Path Planning Leonidas J. Guibas1 , David Hsu2 , Hanna Kurniawati2 uncertainty during planning. We in- troduce the notion of a bounded uncertainty roadmap (BURM) and use, and it is not much slower than classic probabilistic roadmap planning algorithms, which ignore uncertainty
Bounds on Scattering Poles in One Dimension Michael Hitrik
Hitrik, Michael
1 Bounds on Scattering Poles in One Dimension Michael Hitrik Department of Mathematics, University-exponentially decaying potentials on the real line sharp upper bounds on the counting function of the poles in discs are derived and the density of the poles in strips is estimated. In the case of nonnegative potentials
The Improvement of the Bound on Hash Family
Ming, Xianmin
2008-01-01
In this paper, we study the bound on three kinds of hash family using the Singleton bound. To $\\epsilon-U(N; n, m)$ hash family, in the caes of $n>m^2>1$ and $1\\geq\\epsilon\\geq \\epsilon_1(n, m)$, we get that the new bound is better. To $\\epsilon-\\bigtriangleup U(N; n, m)$ hash family, in the case of $n>m>1$ and $1\\geq\\epsilon\\geq\\epsilon_3(n,m)$, the new bound is better. To $\\epsilon-SU(N; n, m)$ hash family, in the case of $n>2^m>2$ and $1\\geq\\epsilon\\geq \\epsilon_4(n, m)$, we get that the new bound is better.
Upper bounds on wavepacket spreading for random Jacobi matrices
Svetlana Jitomirskaya; Hermann Schulz-Baldes
2007-02-15
A method is presented for proving upper bounds on the moments of the position operator when the dynamics of quantum wavepackets is governed by a random (possibly correlated) Jacobi matrix. As an application, one obtains sharp upper bounds on the diffusion exponents for random polymer models, coinciding with the lower bounds obtained in a prior work. The second application is an elementary argument (not using multiscale analysis or the Aizenman-Molchanov method) showing that under the condition of uniformly positive Lyapunov exponents, the moments of the position operator grow at most logarithmically in time.
USF Graduate Catalog 20142015 SECTION 13
Meyers, Steven D.
providers, policy makers, and other professionals to improve the quality of life, health, and safety of individuals, families, populations, and the communities in which we live. The College offers eight Health are offered in collaboration with the College of Public Health at both the master's and doctoral
TRANSFORMING USF'S TAMPA CAMPUS FEBRUARY 26, 2013
Meyers, Steven D.
. · More than 50% of original walls, floors and roof systems were re-used in the renova'on. · New high-efficiency air condi'oning and other systems will reduce overall building water usage by 40%. · Efficient landscaping and irriga'on systems
TRANSFORMING USF'S TAMPA CAMPUS FALL 2012 PRESENTATION
Meyers, Steven D.
% of original walls, floors and roof systems were re-used in the renova'on. · New high-efficiency air condi'oning and other systems will reduce overall energy water usage by 40%. · Efficient landscaping and irriga'on systems will cut arena
Lower bounds for the earliness-tardiness scheduling problem on ...
2004-10-27
and show that the gap between upper and lower bounds is about 1%. ..... n jobs and the supply of source i is at most pi. There are T sinks with a demand.
Briefly Bound to Activate: Transient Binding of a Second Catalytic...
Office of Scientific and Technical Information (OSTI)
and Dynamics of CDK2 Kinase for Catalysis We have determined high-resolution crystal structures of a CDK2Cyclin A transition state complex bound to ADP, substrate peptide, and...
An equivalent form of Young's inequality with upper bound
E. Minguzzi
2008-08-05
Young's integral inequality is complemented with an upper bound to the remainder. The new inequality turns out to be equivalent to Young's inequality, and the cases in which the equality holds become particularly transparent in the new formulation.
Time Bounds for Shared Objects in Partially Synchronous Systems
Wang, Jiaqi
2012-02-14
Shared objects are a key component in today's large distributed systems. Linearizability is a popular consistency condition for such shared objects which gives the illusion of sequential execution of operations. The time bound of an operation...
Upper bound analysis for drag anchors in soft clay
Kim, Byoung Min
2007-04-25
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 ...
LOWER BOUNDS ON INTERGALACTIC MAGNETIC FIELDS FROM SIMULTANEOUSLY...
Office of Scientific and Technical Information (OSTI)
bounds on intergalactic magnetic fields (IGMFs) from upper limits on the pair echo emission from the blazar Mrk 501, that is, delayed GeV emission from secondary esup -esup...
Several new lower bounds for football pool systems
Litsyn, Simon
Several new lower bounds for football pool systems Uri Blass and Simon Litsyn TelAviv University a big deal of attention due to its equivalence to constructing systems for football pools. A survey
Accumulation Rate of Bound States of Dipoles in Graphene
Simone Rademacher; Heinz Siedentop
2015-07-08
We prove that the bound state energies of the two-dimensional massive Dirac operator with dipole type potentials accumulate with exponentials rate at the band edge. In fact we prove a corresponding formula of De Martino et al (2014)
Zero Energy Bound States in Three--Particle Systems
Dmitry K. Gridnev
2010-01-22
Under certain restrictions on pair--potentials it is proved that the eigenvalues in the three--particle system are absorbed at zero energy threshold if there is no negative energy bound states and zero energy resonances in particle pairs.
Effective hydraulic conductivity of bounded, strongly heterogeneous porous media
Tartakovsky, Daniel M.
Effective hydraulic conductivity of bounded, strongly heterogeneous porous media Evangelos K of Arizona, Tucson Abstract. We develop analytical expressions for the effective hydraulic conductivity Ke boundaries. The log hydraulic conductivity Y forms a Gaussian, statistically homogeneous and anisotropic
Improvable upper bounds to the piezoelectric polaron ground state energy
A. V. Soldatov
2014-12-31
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.
Upper bounds on minimum distance of nonbinary quantum stabilizer codes
Kumar, Santosh
2005-11-01
The most popular class of quantum error correcting codes is stabilizer codes. Binary quantum stabilizer codes have been well studied, and Calderbank, Rains, Shor and Sloane (July 1998) have constructed a table of upper bounds on the minimum distance...
Bounded Parameter Markov Decision Processes with Average Reward Criterion
Tewari, Ambuj
Bounded Parameter Markov Decision Processes with Average Reward Criterion Ambuj Tewari1 and Peter L, pp. 263277, 2007. c Springer-Verlag Berlin Heidelberg 2007 #12;264 A. Tewari and P.L. Bartlett
Tolman mass, generalized surface gravity, and entropy bounds
Abreu, Gabriel
2010-01-01
In any static spacetime the quasi-local Tolman mass contained within a volume can be reduced to a Gauss-like surface integral involving the flux of a suitably defined generalized surface gravity. By introducing some basic thermodynamics and invoking the Unruh effect one can then develop elementary bounds on the quasi-local entropy that are very similar in spirit to the holographic bound, and closely related to entanglement entropy.
Cosmological stability bound in massive gravity and bigravity
Fasiello, Matteo; Tolley, Andrew J. E-mail: andrew.j.tolley@case.edu
2013-12-01
We give a simple derivation of a cosmological bound on the graviton mass for spatially flat FRW solutions in massive gravity with an FRW reference metric and for bigravity theories. This bound comes from the requirement that the kinetic term of the helicity zero mode of the graviton is positive definite. The bound is dependent only on the parameters in the massive gravity potential and the Hubble expansion rate for the two metrics. We derive the decoupling limit of bigravity and FRW massive gravity, and use this to give an independent derivation of the cosmological bound. We recover our previous results that the tension between satisfying the Friedmann equation and the cosmological bound is sufficient to rule out all observationally relevant FRW solutions for massive gravity with an FRW reference metric. In contrast, in bigravity this tension is resolved due to different nature of the Vainshtein mechanism. We find that in bigravity theories there exists an FRW solution with late-time self-acceleration for which the kinetic terms for the helicity-2, helicity-1 and helicity-0 are generically nonzero and positive making this a compelling candidate for a model of cosmic acceleration. We confirm that the generalized bound is saturated for the candidate partially massless (bi)gravity theories but the existence of helicity-1/helicity-0 interactions implies the absence of the conjectured partially massless symmetry for both massive gravity and bigravity.
Bound by Water : : Inquiry, Trauma, and Genre in Vietnamese American Literature
Hidle, Jade Tiffany
2014-01-01
CALIFORNIA, SAN DIEGO Bound by Water: Inquiry, Trauma, andTHE DISSERTATION Bound by Water: Inquiry, Trauma, and Genrethrough blood, but through water. Additionally, the mother
Direct Sum Theorem for Bounded Round Quantum Communication Complexity
Dave Touchette
2014-09-15
We prove a direct sum theorem for bounded round entanglement-assisted quantum communication complexity. To do so, we use the fully quantum definition for information cost and complexity that we recently introduced, and use both the fact that information is a lower bound on the communication, and the fact that a direct sum property holds for quantum information complexity. We then give a protocol for compressing a single copy of a protocol down to its quantum information cost, up to terms depending on the number of rounds and the allowed increase in error. Two important tools to derive this protocol are a smooth conditional min-entropy bound for a one-shot quantum state redistribution protocol, and the quantum substate theorem of Jain, Radhakrishnan and Sen (FOCS'02) to transform this bound into a von Neumann conditional entropy bound. This result further establishes the newly introduced notions of quantum information cost and complexity as the correct quantum generalisations of the classical ones in the standard communication complexity setting. Finding such a quantum generalization of information complexity was one of the open problem recently raised by Braverman (STOC'12).
Dark-matter bound states from Feynman diagrams
Petraki, Kalliopi; Wiechers, Michael
2015-01-01
If dark matter couples directly to a light force mediator, then it may form bound states in the early universe and in the non-relativistic environment of haloes today. In this work, we establish a field-theoretic framework for the computation of bound-state formation cross-sections, de-excitation and decay rates, in theories with long-range interactions. Using this formalism, we carry out specific computations for scalar particles interacting either via a light scalar or vector mediator. At low relative velocities of the interacting particles, the formation of bound states is enhanced by the Sommerfeld effect. For particle-antiparticle pairs, we show that bound-state formation can be faster than annihilation into radiation in the regime where the Sommerfeld effect is important. The field-theoretic formalism outlined here can be generalised to compute bound-state formation cross-sections in a variety of theories, including theories featuring non-Abelian (albeit non-confining) interactions, such as the electrow...
Dark-matter bound states from Feynman diagrams
Kalliopi Petraki; Marieke Postma; Michael Wiechers
2015-06-26
If dark matter couples directly to a light force mediator, then it may form bound states in the early universe and in the non-relativistic environment of haloes today. In this work, we establish a field-theoretic framework for the computation of bound-state formation cross-sections, de-excitation and decay rates, in theories with long-range interactions. Using this formalism, we carry out specific computations for scalar particles interacting either via a light scalar or vector mediator. At low relative velocities of the interacting particles, the formation of bound states is enhanced by the Sommerfeld effect. For particle-antiparticle pairs, we show that bound-state formation can be faster than annihilation into radiation in the regime where the Sommerfeld effect is important. The field-theoretic formalism outlined here can be generalised to compute bound-state formation cross-sections in a variety of theories, including theories featuring non-Abelian (albeit non-confining) interactions, such as the electroweak interactions.
New upper bounds for nonbinary codes Dion Gijswijt , Alexander Schrijver y , Hajime Tanaka z
Schrijver, Alexander
- diagonalizing the Terwilliger algebra of the nonbinary Hamming scheme, the bound can be calculated in time bounds for binary codes. Keywords: codes, nonbinary codes, upper bounds, Delsarte bound, Terwilliger alge with the Terwilliger algebra [7] of H(n; q). In section 3 it is shown how the algebra A q;n can be used to obtain a new
Geometric lower bound for a quantum coherence measure
Diego Paiva Pires; Lucas C. Céleri; Diogo O. Soares-Pinto
2015-04-23
Nowadays, geometric tools are being used to treat a huge class of problems of quantum information science. By understanding the interplay between the geometry of the state space and information-theoretic quantities, it is possible to obtain less trivial and more robust physical constraints on quantum systems. In this sense, here we establish a geometric lower bound for the Wigner-Yanase skew information (WYSI), a well-known information theoretic quantity recently recognized as a proper quantum coherence measure. Starting from a mixed state evolving under unitary dynamics, while WYSI is a constant of motion, the lower bound indicates the rate of change of quantum statistical distinguishability between initial and final states. Our result shows that, since WYSI fits in the class of Petz metrics, this lower bound is the change rate of its respective geodesic distance on quantum state space. The geometric approach is advantageous because raises several physical interpretations of this inequality under the same theoretical umbrella.
Stable heteronuclear few-atom bound states in mixed dimensions
Yin Tao; Zhang Peng; Zhang Wei [Department of Physics, Renmin University of China, Beijing 100872 (China)
2011-11-15
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.
Entropy bounds in terms of the w parameter
Abreu, Gabriel; Visser, Matt
2011-01-01
In a pair of recent articles [PRL 105 (2010) 041302 - arXiv:1005.1132; JHEP 1103 (2011) 056 - arXiv:1012.2867] two of the current authors have developed an entropy bound for equilibrium uncollapsed matter using only classical general relativity, basic thermodynamics, and the Unruh effect. An odd feature of that bound, S parameter to be <= 1. When equality holds, the entropy bound saturates at the value expected based on black hole thermodynamics. We also add some clarifying comments regarding the (net) positivity of the chemical potential. Overall, we find that even in the absence of any black hole region, we can nevertheless get arbitrarily close to the Bekenstein entropy.
Dancing Volvox: Hydrodynamic Bound States of Swimming Algae
Knut Drescher; Kyriacos C. Leptos; Idan Tuval; Takuji Ishikawa; Timothy J. Pedley; Raymond E. Goldstein
2009-01-14
The spherical alga Volvox swims by means of flagella on thousands of surface somatic cells. This geometry and its large size make it a model organism for studying the fluid dynamics of multicellularity. Remarkably, when two nearby Volvox swim close to a solid surface, they attract one another and can form stable bound states in which they "waltz" or "minuet" around each other. A surface-mediated hydrodynamic attraction combined with lubrication forces between spinning, bottom-heavy Volvox explains the formation, stability and dynamics of the bound states. These phenomena are suggested to underlie observed clustering of Volvox at surfaces.
Electron magneto-hydrodynamic waves bounded by magnetic bubble
Anitha, V. P.; Sharma, D.; Banerjee, S. P.; Mattoo, S. K. [Institute for Plasma Research, Bhat, Gandhinagar 382428 (India)
2012-08-15
The propagation of electron magneto-hydrodynamic (EMHD) waves is studied experimentally in a 3-dimensional region of low magnetic field surrounded by stronger magnetic field at its boundaries. We report observations where bounded left hand polarized Helicon like EMHD waves are excited, localized in the region of low magnetic field due to the boundary effects generated by growing strengths of the ambient magnetic field rather than a conducting or dielectric material boundary. An analytical model is developed to include the effects of radially nonuniform magnetic field in the wave propagation. The bounded solutions are compared with the experimentally obtained radial wave magnetic field profiles explaining the observed localized propagation of waves.
Closeness to spheres of hypersurfaces with normal curvature bounded below
Borisenko, A A; Drach, K D
2013-11-30
For a Riemannian manifold M{sup n+1} and a compact domain ?? M{sup n+1} bounded by a hypersurface ?? with normal curvature bounded below, estimates are obtained in terms of the distance from O to ?? for the angle between the geodesic line joining a fixed interior point O in ? to a point on ?? and the outward normal to the surface. Estimates for the width of a spherical shell containing such a hypersurface are also presented. Bibliography: 9 titles.
Benchmark Test Calculation of a Four-Nucleon Bound State
H. Kamada; A. Nogga; W. Gloeckle; E. Hiyama; M. Kamimura; K. Varga; Y. Suzuki; M. Viviani; A. Kievsky; S. Rosati; J. Carlson; Steven C. Pieper; R. B. Wiringa; P. Navratil; B. R. Barrett; N. Barnea; W. Leidemann; G. Orlandini
2001-06-25
In the past, several efficient methods have been developed to solve the Schroedinger equation for four-nucleon bound states accurately. These are the Faddeev-Yakubovsky, the coupled-rearrangement-channel Gaussian-basis variational, the stochastic variational, the hyperspherical variational, the Green's function Monte Carlo, the no-core shell model and the effective interaction hyperspherical harmonic methods. In this article we compare the energy eigenvalue results and some wave function properties using the realistic AV8' NN interaction. The results of all schemes agree very well showing the high accuracy of our present ability to calculate the four-nucleon bound state.
Bounding gauged skyrmion masses (Journal Article) | SciTech Connect
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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing Bacteria (Technical Report) | SciTechReport)(TechnicalArticle) |Bounding gaugedBounding
World crude capacity, conversion capability inch upward
Rhodes, A.K.
1994-12-19
Reported world crude capacity increased almost 1 million b/d, while conversion processes--fluid catalytic cracking (FCC), hydrocracking, coking--increased more than 1.7 million b/d or 8.3%, according to the Journal's most recent survey of world refining capacity. As a measure of capacity growth in the past year, changes in distillation capacities (atmospheric plus vacuum) were calculated for three major refining regions. The year-to-year comparison indicates: for the US, an increase of 293,000 b/d, or 1.3%; for the European Economic Community (E.E.C.), an increase of 431,000 b/d, or 2.6%; and for Asia/Pacific, excluding China, an increase of 122,000 b/d, or 1.1%. In addition to the compiled data the paper describes the survey layout, regional changes, conversion units, hydroprocessing, company size, oxygenates, and construction.
Mother and Daughter Reports about Upward Transfers
Lin, I-Fen
2008-01-01
parent’s and adult child’s reports of support and contact.of elderly parents’ and children’s reports. ComparativeElderly in Asia Research Reports, No. 96 – 36. Ann Arbor,
2008 Nature Publishing Group Upward electrical discharges
Pasko, Victor
that supports this basic mechanism. In contrast, we find that gigantic jets begin as a normal intracloud to propagate out of the top of the storm. Observational support for this mechanism comes from similarity with `bolt-from-the-blue' discharges5 and from data on the polarity of gigantic jets6 . We conclude
Diatom-bound 15 N: New support for enhanced nutrient
Sigman, Daniel M.
associated with sea ice melting. Enhanced nutrient consumption in the glacial subantarctic would have worked 2005. [1] Diatom-bound 15 N/14 N was used to reconstruct the glacial nutrient status of 5 to 6% during the Last Glacial Maximum and a decrease, coincident with the glacial termination
Bounds On Contention Management Algorithms Johannes Schneider1
Bounds On Contention Management Algorithms Johannes Schneider1 , Roger Wattenhofer1 Computer algorithms for contention management in transactional memory, the deterministic algorithm CommitRounds and the randomized algo- rithm RandomizedRounds. Our randomized algorithm is efficient: in some noto- rious problem
A CHARACTERIZATION OF BOUNDED SYMMETRIC DOMAINS OF TYPE IV
Geatti, Laura
A CHARACTERIZATION OF BOUNDED SYMMETRIC DOMAINS OF TYPE IV L. GEATTI, A. IANNUZZI, AND J.-J. LOEB with the compact-open topology is a topological group. We say that X is characterized by its automorphism group to Aut(X) is biholomorphic to X. Most manifolds are not characterized by their automorphism group. For in
Comments on: Asymptotic Bound for Heat-Bath Algorithmic Cooling
Nayeli Azucena Rodriguez-Briones; Jun Li; Xinhua Peng; Tal Mor; Yossi Weinstein; Raymond Laflamme
2015-06-05
In a recent paper, PRL 114 100404, 2015, Raeisi and Mosca studied Heat-Bath Algorithmic Cooling (HBAC) and claimed to have established "the fundamental limit of cooling for {\\it all} HBAC techniques" (italics are ours). We show that this claim is incorrect by giving a counterexample of an HBAC algorithm that provides better cooling bound for two qubits.
Particle physics implications of the WMAP neutrino mass bound
G. Bhattacharyya; H. Päs; L. Song; T. J. Weiler
2003-04-25
The recently published cosmological bound on the absolute neutrino masses obtained from the Wilkinson Microwave Anisotropy Probe (WMAP) data has important consequences for neutrino experiments and models. Taken at face value, the new bound excludes the determination of the absolute neutrino mass in the KATRIN experiment and disfavors a neutrino oscillation interpretation of the LSND experiment. Combined with the KamLAND and Super-K data, the WMAP bound defines an accessible range for the neutrinoless double beta decay amplitude. The bound also impacts the Z-burst annihilation mechanism for resonant generation of extreme-energy cosmic rays on the cosmic neutrino background in two ways: it constrains the local overdensity of neutrino dark matter which is not helpful, but it also limits the resonant energy to a favorable range. In R-parity violating SUSY models neutrino masses are generated by trilinear and bilinear lepton number violating couplings. The WMAP result improves the constraints on these couplings over their existing values by an order of magnitude.
Lower Bounds on Testing Membership to a Polyhedron by
Grigoriev, Dima
Email:imilar question was ope* *n for algebraic decision dima@cse.psu.edu. Supported in part by the Volkswagen and ECUS030, and by the Volkswagen-Stiftung.oEmail:btaining lower bounds f* *or the complexity of test
Verifying Concurrent Programs via Bounded Context-Switching and Induction
Reps, Thomas W.
on and extends context- bounded analysis (CBA), in which thread interleavings are consid- ered only up to K switch). Our approach uses CBA directly to handle the base case, and uses CBA as a subroutine when impediments to combining CBA and K-induction. The paper identifies these challenges and introduces three
Bounds on New Physics from Parity Violation in Atomic Cesium
D. Dominici
1999-09-08
A recent experimental determination of the weak charge of atomic cesium is used to get implications for possible new physics. The new data imply positive upper and lower bounds on the new physics contribution to the weak charge, delta_N Q_W, requiring new physics of a type not severely constrained by the high energy precision data.
The interior transmission problem and bounds on transmission eigenvalues
Michael Hitrik; Katsiaryna Krupchyk; Petri Ola; Lassi Päivärinta
2010-09-28
We study the interior transmission eigenvalue problem for sign-definite multiplicative perturbations of the Laplacian in a bounded domain. We show that all but finitely many complex transmission eigenvalues are confined to a parabolic neighborhood of the positive real axis.
Minimizing Energy for Wireless Web Access with Bounded Slowdown
-saving mode (PSM), a "static" protocol, can harm performance by increasing fast round trip times (RTTs) to 100- Slowdown (BSD) protocol, a PSM that dynamically adapts to network activity. BSD is an optimal solution that show that, compared to a static PSM, the Bounded-Slowdown protocol reduces average Web page re- trieval
Sharp Generalization Error Bounds for Randomly-projected Classifiers
Kaban, Ata
;Introduction (2) Our aim is to obtain generalisation bound for a generic linear classifier trained by ERM for a generic linear classifier trained by ERM on randomly projected data. Make no restrictive assumptions other trained by ERM on randomly projected data. Make no restrictive assumptions other than the original data
Positron-molecule interactions: Resonant attachment, annihilation, and bound states
Gribakin, Gleb
, Northern Ireland, United Kingdom J. A. Young Jet Propulsion Laboratory, California Institute of Technology with the number of vibrational degrees of freedom, approximately as the fourth power of the number of atoms. Positron-molecule wave function 2563 D. Direct annihilation: Virtual and weakly bound positron states 2564
Plasma ionization by annularly bounded helicon waves Masayuki Yanoa
Walker, Mitchell
Air Force mission designs require electric propulsion devices to operate at high thrust-to-powerPlasma ionization by annularly bounded helicon waves Masayuki Yanoa and Mitchell L. R. Walkerb. In addition, the power deposition as a function of excitation frequency is derived. The solution is validated
PASSIVE TIMESTAMPING IN THE BOUNDED STORAGE MODEL SUBMISSION VERSION
Ta-Shma, Amnon
PASSIVE TIMESTAMPING IN THE BOUNDED STORAGE MODEL SUBMISSION VERSION Abstract. A timestamping scheme is passive if a stamper can stamp a document without comÂ municating with any other player. The only communication done is at validation time. Passive timestamping has many advantages
Improved Capacity Bounds for the Binary Energy Harvesting Channel
Yener, Aylin
Improved Capacity Bounds for the Binary Energy Harvesting Channel Kaya Tutuncuoglu1 , Omur Ozel2 the encoder has unit energy storage capacity. We first show that an encoding scheme based on block indexing/channel use. The capacity of additive white Gaussian noise (AWGN) energy harvesting channel was studied in [2
New Computational Upper Bounds for Ramsey Numbers R(3, k)
Radziszowski, Stanislaw P.
New Computational Upper Bounds for Ramsey Numbers R(3, k) Jan Goedgebeur Department of Applied@cs.rit.edu Kolloquium ĂĽber Kombinatorik Berlin, November 16, 2012 1/25 Avoiding Triangles in Ramsey Graphs or independence in triangle-free graphs 1 Ramsey Numbers R(3, k) Asymptotics Some background and history Lower
Bounds for Ramsey numbers in multipartite Eugene Heinz Stipp
van Vuuren, Jan H.
Bounds for Ramsey numbers in multipartite graphs Eugene Heinz Stipp Submitted in partial ful#12 theoretic Ramsey number is generalized by assuming that both the original graph whose edges are arbitrarily of complete graphs as in the standard de#12;nition. Some small multipartite Ramsey numbers are found, while
Model-Independent Arbitrage Bounds on American Put
Cox, Alexander
in the real world. Alternatively, we could use the prices of some liquidly traded options to deduce noModel-Independent Arbitrage Bounds on American Put Options submitted by Christoph Hoeggerl are interested in the pricing of American put options using the latter approach. To this end, we will assume
Lieb-Thirring Bounds for Interacting Bose Gases
Douglas Lundholm; Fabian Portmann; Jan Philip Solovej
2015-02-02
We study interacting Bose gases and prove lower bounds for the kinetic plus interaction energy of a many-body wave function in terms of its particle density. These general estimates are then applied to various types of interactions, including hard sphere (in 3D) and hard disk (in 2D) as well as a general class of homogeneous potentials.
Error Bounds from Extra Precise Iterative Refinement James Demmel
Li, Xiaoye Sherry
now prevented its adoption in standard subroutine libraries like LAPACK: (1) There was no standard way a reliable error bound for the computed solution. The completion of the new BLAS Technical Forum Standard [5 Cooperative Agreement No. ACI-9619020; NSF Grant Nos. ACI-9813362 and CCF-0444486; the DOE Grant Nos. DE-FG03
Two heavy fermions bound via Higgs boson exchange
Victor Flambaum; Michael Kuchiev
2011-12-11
A system of two heavy fermions, leptons or quarks of the fourth generation, which are bound together via the Higgs boson exchange is studied. The conventional Yukawa-type interaction produced by this exchange is accompanied by several important corrections. We derived the Hamiltonian, which describes the correction arising from the retardation (compare the Breit correction in QED); we also calculated the relativistic and radiative corrections. The Higgs-induced bound state appears for the fermion mass m>m_{cr} \\approx 500 GeV. When the long-range Coulomb interaction or the gluon exchange are included, the bound states exist for any mass, but the Higgs exchange drastically increases the binding energy of these states when m is approaching m_{cr}. In the region m>m_{cr} the gluon exchange gives a sizable correction to the Higgs induced binding energy. This correction greatly exceeds typical binding energies in the states produced via the gluon exchange only. The possibility of detection of the considered bound states at LHC is discussed.
Hierarchy of Bounds on Accessible Information and Informational Power
Michele Dall'Arno
2015-07-28
Quantum theory imposes fundamental limitations to the amount of information that can be carried by any quantum system. On the one hand, Holevo bound rules out the possibility to encode more information in a quantum system than in its classical counterpart, comprised of perfectly distinguishable states. On the other hand, when states are uniformly distributed in the state space, the so-called subentropy lower bound is saturated. How uniform quantum systems are can be naturally quantified by characterizing them as $t$-designs, with $t = \\infty$ corresponding to the uniform distribution. Here we show the existence of a trade-off between the uniformity of a quantum system and the amount of information it can carry. To this aim, we derive a hierarchy of informational bounds as a function of $t$ and prove their tightness for qubits and qutrits. By deriving asymptotic formulae for large dimensions, we also show that the statistics generated by any $t$-design with $t > 1$ contains no more than a single bit of information, and this amount decreases with $t$. Holevo and subentropy bounds are recovered as particular cases for $t = 1$ and $t = \\infty$, respectively.
Towards flavored bound states beyond rainbows and ladders
El-Bennich, B.; Rojas, E.; Melo, J. P. B. C. de; Paracha, M. A.
2014-11-11
We give a snapshot of recent progress in solving the Dyson-Schwinger equation with a beyond rainbow-ladder ansatz for the dressed quark-gluon vertex which includes ghost contributions. We discuss the motivations for this approach with regard to heavy-flavored bound states and form factors and briefly describe future steps to be taken.
Zero Energy Bound States in Many--Particle Systems
Dmitry K. Gridnev
2011-12-01
It is proved that the eigenvalues in the N--particle system are absorbed at zero energy threshold, if none of the subsystems has a bound state with $E \\leq 0$ and none of the particle pairs has a zero energy resonance. The pair potentials are allowed to take both signs.
PICO: An Object-Oriented Framework for Branch and Bound
ECKSTEIN,JONATHAN; HART,WILLIAM E.; PHILLIPS,CYNTHIA A.
2000-12-01
This report describes the design of PICO, a C++ framework for implementing general parallel branch-and-bound algorithms. The PICO framework provides a mechanism for the efficient implementation of a wide range of branch-and-bound methods on an equally wide range of parallel computing platforms. We first discuss the basic architecture of PICO, including the application class hierarchy and the package's serial and parallel layers. We next describe the design of the serial layer, and its central notion of manipulating subproblem states. Then, we discuss the design of the parallel layer, which includes flexible processor clustering and communication rates, various load balancing mechanisms, and a non-preemptive task scheduler running on each processor. We describe the application of the package to a branch-and-bound method for mixed integer programming, along with computational results on the ASCI Red massively parallel computer. Finally we describe the application of the branch-and-bound mixed-integer programming code to a resource constrained project scheduling problem for Pantex.
Optimal Bounds for Online Page Migration with Generalized Migration Costs
Schmid, Stefan
Optimal Bounds for Online Page Migration with Generalized Migration Costs Johannes Schneider1 to a generalized version of the classic page migration problem where migration costs are not necessarily given by the migration distance only, but may depend on prior migrations, or on the available bandwidth along
In-medium antikaon interactions and bound states
Avraham Gal; Eli Friedman; Nir Barnea; Aleš Cieplý; Ji?í Mareš; Daniel Gazda
2014-11-05
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.
POINTWISE GREEN FUNCTION BOUNDS AND STABILITY OF COMBUSTION WAVES
Texier, Benjamin - Institut de MathĂ©matiques de Jussieu, UniversitĂ© Paris 7
POINTWISE GREEN FUNCTION BOUNDS AND STABILITY OF COMBUSTION WAVES GREGORY LYNG, MOHAMMADREZA ROOFI for traveling wave solutions of an abstract viscous combustion model including both Majda's model and the full-wave) approximation. Notably, our results apply to combustion waves of any type: weak or strong, detonations or defla
BOUNDS ON ZIMIN WORD AVOIDANCE JOSHUA COOPER* AND DANNY RORABAUGH*
Cooper, Joshua N.
BOUNDS ON ZIMIN WORD AVOIDANCE JOSHUA COOPER* AND DANNY RORABAUGH* Abstract. How long can a word be that avoids the unavoidable? Word W encounters word V provided there is a homomorphism defined by mapping letters to nonempty words such that (V ) is a subword of W. Otherwise, W is said to avoid V . If, on any
Jacobi's bound and normal forms computations. A historical survey
Ollivier, FranĂ§ois
Jacobi's bound and normal forms computations. A historical survey F. Ollivier, LIX UMRS CNRS'evich Pankratiev. Abstract Jacobi is one of the most famous mathematicians of his century. His name is attached of Jacobi's results on ordinary differential equations and the available, published or unpublished material
Polynomial Bounds for the Grid-Minor Theorem
Chudnovsky, Maria
Abstract: One off the key results in Robertson and Seymour's seminal work on graph minors is the GridPolynomial Bounds for the Grid-Minor Theorem Date Friday, February 7 Time 3 pm Location 317 Mudd-Minor Theorem (also called the Excluded Grid Theorem). The theorem states that for every fixed-size grid H
Bounds on the Energy Consumption of Computational Andrew Gearhart
California at Berkeley, University of
in energy efficiency can significantly reduce operating costs. Such challenges have influenced re- search variety of machines. Motivated by the large and increas- ingly growing dominant cost (in time and energyBounds on the Energy Consumption of Computational Kernels Andrew Gearhart Electrical Engineering
Bounded Conjunctive Queries Yang Cao1,2
Fan, Wenfei
of Edinburgh 2 RCBD and SKLSDE Lab, Beihang University 3 Facebook Inc. {Y.Cao-17@sms, wenfei@inf}.ed.ac.uk woty can reduce big D to a "small" DQ of a manageable size. Many real-life queries are actually (effectively) bounded. Example 1: Social networks, e.g., Facebook, allow us to tag a photo and show who
A Calibration Bound for the M-Theory Fivebrane
O. Baerwald; N. D. Lambert; P. C. West
1999-08-13
We construct a covariant bound on the energy-momentum of the M-fivebrane which is saturated by all supersymmetric configurations. This leads to a generalised notion of a calibrated geometry for M-fivebranes when the worldvolume gauge field is non-zero. The generalisation relevant for Dp-branes is also given.
CSP duality and trees of bounded pathwidth Catarina Carvalhoa
Krokhin, Andrei
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
CSP duality and trees of bounded pathwidth Catarina Carvalhoa
Krokhin, Andrei
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
Bounding Energy Consumption in Large-Scale MPI Programs
Funk, Shelby Hyatt
can execute parts of a program at a slower CPU speed to achieve energy savings with a relatively small savings is NP-complete, which has led to many heuristic energy- saving algorithms. To determine how closely these algorithms approach optimal savings, we developed a system that determines a bound on the en
How Efficient Can We Be?: Bounds on Algorithm Energy Consumption
California at Irvine, University of
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
Lower bounding procedure for the Asymmetric Quadratic Traveling ...
2015-02-04
a lower bound is to linearize the quadratic terms xijxjk for all (i, j),(j, k) ? A ..... Consider any cycle C. Since column Cp is the selected column to enter the basis we ..... some kind of subtour elimination constraint, we restrict the search to find a
Online Regret Bounds for Markov Decision Processes with Deterministic Transitions$
Ortner, Ronald
and Katehakis [3] was recently generalized by Tewari and Bartlett [4] (at the cost of a worse constant has slightly worse dependence on the pa- rameters than the bound of Tewari and Bartlett [4], yet. Recently, modifying algorithm and methods of Auer et al. [6], Bartlett and Tewari [7] managed to replace
Density functional theory for self-bound systems
Nir Barnea
2007-11-06
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.
Proton lifetime bounds from chirally symmetric lattice QCD
Y. Aoki; P. Boyle; P. Cooney; L. Del Debbio; R. Kenway; C. M. Maynard; A. Soni; R. Tweedie
2008-06-05
We present results for the matrix elements relevant for proton decay in Grand Unified Theories (GUTs). The calculation is performed at a fixed lattice spacing a^{-1}=1.73(3) GeV using 2+1 flavors of domain wall fermions on lattices of size 16^3\\times32 and 24^3\\times64 with a fifth dimension of length 16. We use the indirect method which relies on an effective field theory description of proton decay, where we need to estimate the low energy constants, \\alpha = -0.0112(25) GeV^3 and \\beta = 0.0120(26) GeV^3. We relate these low energy constants to the proton decay matrix elements using leading order chiral perturbation theory. These can then be combined with experimental bounds on the proton lifetime to bound parameters of individual GUTs.
Upper Bound on Fidelity of Classical Sagnac Gyroscope
Thomas B. Bahder
2011-01-24
Numerous quantum mechanical schemes have been proposed that are intended to improve the sensitivity to rotation provided by the classical Sagnac effect in gyroscopes. A general metric is needed that can compare the performance of the new quantum systems with the classical systems. The fidelity (Shannon mutual information between the measurement and the rotation rate) is proposed as a metric that is capable of this comparison. A theoretical upper bound is derived for the fidelity of an ideal classical Sagnac gyroscope. This upper bound for the classical Sagnac gyroscope should be used as a benchmark to compare the performance of proposed enhanced classical and quantum rotation sensors. In fact, the fidelity is general enough to compare the quality of two different apparatuses (two different experiments) that attempt to measure the same quantity.
A framework for bounding nonlocality of state discrimination
Andrew M. Childs; Debbie Leung; Laura Mancinska; Maris Ozols
2012-06-25
We consider the class of protocols that can be implemented by local quantum operations and classical communication (LOCC) between two parties. In particular, we focus on the task of discriminating a known set of quantum states by LOCC. Building on the work in the paper "Quantum nonlocality without entanglement" [BDF+99], we provide a framework for bounding the amount of nonlocality in a given set of bipartite quantum states in terms of a lower bound on the probability of error in any LOCC discrimination protocol. We apply our framework to an orthonormal product basis known as the domino states and obtain an alternative and simplified proof that quantifies its nonlocality. We generalize this result for similar bases in larger dimensions, as well as the "rotated" domino states, resolving a long-standing open question [BDF+99].
Directional Dark Matter Detection Beyond the Neutrino Bound
Philipp Grothaus; Malcolm Fairbairn; Jocelyn Monroe
2014-09-30
Coherent scattering of solar, atmospheric and diffuse supernovae neutrinos creates an irreducible background for direct dark matter experiments with sensitivities to WIMP-nucleon spin-independent scattering cross-sections of 10^(-46)-10^(-48) cm^2, depending on the WIMP mass. Even if one could eliminate all other backgrounds, this "neutrino floor" will limit future experiments with projected sensitivities to cross-sections as small as 10^(-48) cm^2. Direction-sensitive detectors have the potential to study dark matter beyond the neutrino bound by fitting event distributions in multiple dimensions: recoil kinetic energy, recoil track angle with respect to the sun, and event time. This work quantitatively explores the impact of direction-sensitivity on the neutrino bound in dark matter direct detection.
Solar neutrinos do not bound the decoherence effect
Roberto L. N. Oliveira; Marcelo M. Guzzo; Pedro C. de Holanda
2015-11-11
Considering the neutrino state like an open quantum system, we analyze its propagation in vacuum or in matter. After defining what can be called decoherence and relaxation effects, we show that in general the probabilities in vacuum and in constant matter can be written in a similar way, which is not an obvious result in this approach. From this result, we analyze the situation where neutrinos evolution satisfies the adiabatic limit and use this formalim to study solar neutrinos. We show that the decoherence effect may not be bounded by the solar neutrino data and review some results in the literature. We discuss the current results where solar neutrinos were used to put bounds on decoherence effects through a model-dependent approach. We conclude explaining how and why this models are not general and we reinterpret these constraints.
Free Energies of Dilute Bose gases: upper bound
Jun Yin
2010-12-19
We derive a upper bound on the free energy of a Bose gas system at density $\\rho$ and temperature $T$. In combination with the lower bound derived previously by Seiringer \\cite{RS1}, our result proves that in the low density limit, i.e., when $a^3\\rho\\ll 1$, where $a$ denotes the scattering length of the pair-interaction potential, the leading term of $\\Delta f$ the free energy difference per volume between interacting and ideal Bose gases is equal to $4\\pi a (2\\rho^2-[\\rho-\\rhoc]^2_+)$. Here, $\\rhoc(T)$ denotes the critical density for Bose-Einstein condensation (for the ideal gas), and $[\\cdot ]_+$ $=$ $\\max\\{\\cdot, 0\\}$ denotes the positive part.
Evidence for a Bound H Dibaryon from Lattice QCD
Beane, S. R.; Chang, E.; Parreno, A.; Detmold, W.; Orginos, K.; Joo, B.; Lin, H. W.; Savage, M. J.; Luu, T. C.; Torok, A.; Walker-Loud, A.
2011-04-22
We present evidence for the existence of a bound H dibaryon, an I=0, J=0, s=-2 state with valence quark structure uuddss, at a pion mass of m{sub {pi}{approx}3}89 MeV. Using the results of lattice QCD calculations performed on four ensembles of anisotropic clover gauge-field configurations, with spatial extents of L{approx}2.0, 2.5, 3.0, and 3.9 fm at a spatial lattice spacing of b{sub s{approx}}0.123 fm, we find an H dibaryon bound by B{sub {infinity}}{sup H}=16.6{+-}2.1{+-}4.6 MeV at a pion mass of m{sub {pi}{approx}3}89 MeV.
Bounds on Information and the Security of Quantum Cryptography
E. Biahm; T. Mor
1997-01-08
Strong attacks against quantum key distribution use quantum memories and quantum gates to attack directly the final key. In this paper we extend a novel security result recently obtained, to demonstrate proofs of security against a wide class of such attacks. To reach this goal we calculate information-dependent reduced density matrices, we study the geometry of quantum mixed states, and we find bounds on the information leaked to an eavesdropper. Our result suggests that quantum cryptography is ultimately secure.
Naked Reissner-Nordström singularity and quasiclassical bound states
Valentin D. Gladush; Dmitry A. Kulikov
2011-10-14
The bound-state problem for an uncharged massive scalar particle in the field of a naked Reissner-Nordstr\\"om singularity is approached by means of the quasiclassical Bohr-Sommerfeld quantization. An approximate analytical expression for the energy levels of the system is derived. It is shown that in order to obtain non-vanishing binding energies the masses of both the central object and the particle should be comparable with the Planck mass.
Photo-production of Bound States with Hidden Charms
Jia-Jun Wu; T. -S. H. Lee
2012-10-22
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.
Lower Bounds for Cover-Free Families Ali Z. Abdi
Bshouty, Nader
. Cover-free families were first introduced in 1964 by Kautz and Singleton [5]. Let N(n, (w, r)) denote the minimum number of points |X| in any (w, r)- CFF having |F| = n blocks. The best known lower bound for N(n, (w, r)) N(n - 1, (w - 1, r)) + N(n - 1, (w, r - 1)). (2) They then use it with (1) to prove two
D-brane Bound States and the Generalised ADHM Construction
N. D. Lambert
1998-01-08
We discuss the sigma model description of a D-string bound to k D-fivebranes in type I string theory. The effective theory is an (0,4) supersymmetric hyper-Kahler with torsion sigma model on the moduli space of Sp(k) instantons on R^4. Upon toroidal compactification to five dimensions the model is related to the type II picture where the target space is a symmetric product of K3's.
Bounding the greybody factors for Schwarzschild black holes
Boonserm, Petarpa
2008-01-01
Greybody factors in black hole physics modify the naive Planckian spectrum that is predicted for Hawking radiation when working in the limit of geometrical optics. We consider the Schwarzschild geometry in (3+1) dimensions, and analyze the Regge-Wheeler equation for arbitrary particle spin S and wave-mode angular momentum L, deriving rigourous bounds on the greybody factors as a function of S, L, wave frequency (omega), and the black hole mass, m.
South Bound Brook, New Jersey: Energy Resources | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-Enhancing Capacity forSiliciumEnergy IncAshburnham,Bound Brook, New Jersey: Energy
Optimal Distributed P2P Streaming under Node Degree Bounds
Zhang, Shaoquan; Chen, Minghua
2010-01-01
We study the problem of maximizing the broadcast rate in peer-to-peer (P2P) systems under \\emph{node degree bounds}, i.e., the number of neighbors a node can simultaneously connect to is upper-bounded. The problem is critical for supporting high-quality video streaming in P2P systems, and is challenging due to its combinatorial nature. In this paper, we address this problem by providing the first distributed solution that achieves near-optimal broadcast rate under arbitrary node degree bounds, and over arbitrary overlay graph. It runs on individual nodes and utilizes only the measurement from their one-hop neighbors, making the solution easy to implement and adaptable to peer churn and network dynamics. Our solution consists of two distributed algorithms proposed in this paper that can be of independent interests: a network-coding based broadcasting algorithm that optimizes the broadcast rate given a topology, and a Markov-chain guided topology hopping algorithm that optimizes the topology. Our distributed br...
Yet Another Secure Distance-Bounding Protocol Ventzislav Nikov and Marc Vauclair
International Association for Cryptologic Research (IACR)
Yet Another Secure Distance-Bounding Protocol Ventzislav Nikov and Marc Vauclair NXP Semiconductors, Leuven, Belgium, ventzislav.nikov@nxp.com, marc.vauclair@nxp.com Abstract. Distance-bounding protocols
APRIORI BOUNDS FOR REACTION-DIFFUSION SYSTEMS ARISING IN CHEMICAL JEFF S. MCGOUGH AND KYLE RILEY
McGough, Jeff S.
APRIORI BOUNDS FOR REACTION-DIFFUSION SYSTEMS ARISING IN CHEMICAL KINETICS JEFF S. MCGOUGH AND KYLE RILEY Abstract. The authors investigate reaction diffusion equations which arise in chemical kinetics diffusion equations, gradient bounds, chemical kinetics, autocatalytic reactions AMS subject classifications
Structure of DNA-Bound FEN1 Reveals Mechanism of Action
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
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...
Approximation Hardness of TSP with Bounded Metrics Lars Engebretsen? Marek Karpinski??
Eckmiller, Rolf
|note that such a distance function always satis es the triangle inequality|within that constant. This lower bound
New code upper bounds from the Terwilliger algebra and semidefinite programming
Schrijver, Alexander
1 New code upper bounds from the Terwilliger algebra and semidefinite programming Alexander n and minimum distance at least d. It is based on blockÂdiagonalising the Terwilliger algeÂ bra, Terwilliger algebra, upper bounds. I. DESCRIPTION OF THE METHOD We present a new upper bound on A(n, d
New code upper bounds from the Terwilliger algebra and semidefinite programming
Schrijver, Alexander
1 New code upper bounds from the Terwilliger algebra and semidefinite programming Alexander and minimum distance at least d. It is based on block-diagonalising the Terwilliger alge- bra of the Hamming, Terwilliger algebra, upper bounds. I. DESCRIPTION OF THE METHOD We present a new upper bound on A(n, d
A generic set that does not bound a minimal Mariya Ivanova Soskova
Soskova, Mariya I.
A generic set that does not bound a minimal pair Mariya Ivanova Soskova University of Leeds that does not bound a minimal pair. In this paper we verify this longstanding conjecture by constructing-generic degree bounds a minimal pair as proved in [5] we construct a 1-generic set, whose e-degree does
Bounds on FSM Switching Activity Eleftheria Athanasopoulou and Christoforos N. Hadjicostis
Hadjicostis, Christoforos
power consumption. Index Terms Switching activity, lower/upper bound, low power design, state assignment1 Bounds on FSM Switching Activity Eleftheria Athanasopoulou and Christoforos N. Hadjicostis Abstract This paper obtains lower and upper bounds for the switching activity on the state lines
Chen, Dong; Gara, Alana; Heidelberger, Philip; Kumar, Sameer; Ohmacht, Martin; Steinmacher-Burow, Burkhard; Wisniewski, Robert
2014-09-16
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.
Cosmological Bounds on an Invisibly Decaying Higgs Boson
O. Bertolami; M. C. Bento; R. Rosenfeld
2001-11-21
We derive bounds on the Higgs boson coupling $g^{\\prime}$ to a stable light scalar which is regarded as a collisional dark matter candidate. We study the behaviour of this scalar, that we refer to as phion ($\\phi$), in the early Universe for different ranges of its mass. We find that a phion in the mass range of $100 \\mev$ is excluded, while if its mass is about $1 \\gev$, a rather large coupling constant, $g^{\\prime} \\gsim 2$, and $m_h \\lsim 130 \\gev$ are required in order to avoid overabundance. In the latter case, the invisible decay mode of the Higgs boson is dominant.
Optimal bounds for solving tridiagonal systems with preconditioning
Zellini, P. )
1988-10-01
Let (1) Tx=f be a linear tridiagonal system system of n equations in the unknown x/sub 1/, ..., x/sub n/. It is proved that 3n-2 (nonscalar) multiplications/divisions are necessary to solve (1) in a straight-line program excluding divisions by elements of f. This bound is optimal if the cost of preconditioning of T is not counted. Analogous results are obtained in case (i) T is bidiagonal and (ii) T and f are both centrosymmetric. The existence of parallel algorithms to solve (1) with preconditioning and with minimal multiplicative redundancy is also discussed.
Groups generated by bounded automata and their schreier graphs
Bondarenko, Ievgen
2008-10-10
by Bounded Automata and Their Schreier Graphs. (December 2007) Ievgen Bondarenko, B.S., National Taras Shevchenko University of Kyiv, Ukraine; M.S., National Taras Shevchenko University of Kyiv, Ukraine Chair of Advisory Committee: Dr. Rostislav Grigorchuk... maps In Chapter III we study spectral properties and iterations of piecewise linear maps of the form fK(v) = min A?K Av, v?RN, (1.1) where K is a finite set of nonnegative square matrices of fixed dimension and by “min” we mean component-wise minimum...
Radiative corrections in fermion bags bound by Higgs boson exchange
M. Yu. Kuchiev; V. V. Flambaum
2011-01-16
Radiative corrections for several heavy fermions bound together via the Higgs boson exchange are studied. The fermion bags considered include 12, or fewer, fermions occupying the lowest S_{1/2} shell. It is shown that for `moderately heavy' fermions with masses 0.4< m c^2< 1 TeV the radiative corrections are small, 10^{-2}, and have an attractive nature. Therefore they do not put existence of the fermion bag in doubt. This proves that these fermion bags can exist in nature.
Bounded modes to the rescue of optical transmission
Michael Sarrazin; Jean Pol Vigneron
2007-10-17
This paper presents a brief survey of the evolution of knowledge about diffraction gratings. After recalling some basic facts, historically and physically, we introduce the concept of Wood anomalies. Next, we present some recent works in order to introduce the role of bounded modes in transmission gratings. The consequences of these recent results are then introduced. This paper is a secondary publication, published in Europhysics News (EPN 38, 3 (2007) 27-31). In the present version, some additional notes have been added with related references.
Emergent Soft Monopole Modes in Weakly-Bound Deformed Nuclei
J. C. Pei; M. Kortelainen; Y. N. Zhang; F. R. Xu
2014-11-13
Based on the Hartree-Fock-Bogoliubov solutions in large deformed coordinate spaces, the finite amplitude method for quasiparticle random phase approximation (FAM-QRPA) has been implemented, providing a suitable approach to probe collective excitations of weakly-bound nuclei embedded in the continuum. The monopole excitation modes in Magnesium isotopes up to the neutron drip line have been studied with the FAM-QRPA framework on both the coordinate-space and harmonic oscillator basis methods. Enhanced soft monopole strengths and collectivity as a result of weak-binding effects have been unambiguously demonstrated.
Bound Brook, New Jersey: Energy Resources | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental JumpInformationBio-GasIllinois:EnergyIdahoTechnologyEnergyBound Brook, New
Bounding gauged skyrmion masses (Journal Article) | SciTech Connect
Office of Scientific and Technical Information (OSTI)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing Bacteria (Technical Report) | SciTechReport)(TechnicalArticle) |Bounding gauged
Bounding the Pseudogap in Cuprate High-TC Superconductors (Technical
Office of Scientific and Technical Information (OSTI)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing Bacteria (Technical Report) | SciTechReport)(TechnicalArticle) |BoundingReport) |
Bounding the Pseudogap in Cuprate High-TC Superconductors (Technical
Office of Scientific and Technical Information (OSTI)
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity of NaturalDukeWakefieldSulfate Reducing Bacteria (Technical Report) | SciTechReport)(TechnicalArticle) |BoundingReport)
Quasi-bound states in periodically driven scattering
H. Landa
2015-06-29
We present an approach for obtaining eigenfunctions of periodically driven time-dependent Hamiltonians. Assuming an approximate scale separation between two spatial regions where different potentials dominate, we derive an explicit expansion for scattering problems with mixed cylindrical and spherical symmetry, by matching wavefunctions of a periodic linear drive in the exterior region to solutions of an arbitrary interior potential expanded in spherical waves. Using this method we study quasi-bound states of a square-well potential in three dimensions subject to an axial driving force. In the nonperturbative regime we show how eigenfunctions develop an asymptotic dressing of different partial waves, accompanied by large periodic oscillations in the angular momentum and a nonmonotonous dependence of the decay rate on the drive strength. We extend these results to the strong driving regime near a resonant intersection of the quasi-energy surfaces of two bound states of different symmetry. Our approach can be applied to general quantum scattering problems of particles subject to periodic fields.
Bounds to binding energies from the concavity of thermodynamical functions
B. K. Jennings; B. R. Barrett; B. G. Giraud
2007-08-22
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.
Bounding the Hubble flow in terms of the w parameter
Cattoen, Celine
2008-01-01
The last decade has seen increasing efforts to circumscribe and bound the cosmological Hubble flow in terms of model-independent constraints on the cosmological fluid - such as, for instance, the classical energy conditions of general relativity. Quite a bit can certainly be said in this regard, but much more refined bounds can be obtained by placing more precise constraints (either theoretical or observational) on the cosmological fluid. In particular, the use of the w-parameter (w=p/rho) has become increasingly common as a surrogate for trying to say something about the cosmological equation of state. Herein we explore the extent to which a constraint on the w-parameter leads to useful and nontrivial constraints on the Hubble flow, in terms of constraints on density rho(z), Hubble parameter H(z), density parameter Omega(z), cosmological distances d(z), and lookback time T(z). In contrast to other partial results in the literature, we carry out the computations for arbitrary values of the space curvature k i...
Bounding the Hubble flow in terms of the w parameter
Celine Cattoen; Matt Visser
2008-06-13
The last decade has seen increasing efforts to circumscribe and bound the cosmological Hubble flow in terms of model-independent constraints on the cosmological fluid - such as, for instance, the classical energy conditions of general relativity. Quite a bit can certainly be said in this regard, but much more refined bounds can be obtained by placing more precise constraints (either theoretical or observational) on the cosmological fluid. In particular, the use of the w-parameter (w=p/rho) has become increasingly common as a surrogate for trying to say something about the cosmological equation of state. Herein we explore the extent to which a constraint on the w-parameter leads to useful and nontrivial constraints on the Hubble flow, in terms of constraints on density rho(z), Hubble parameter H(z), density parameter Omega(z), cosmological distances d(z), and lookback time T(z). In contrast to other partial results in the literature, we carry out the computations for arbitrary values of the space curvature k in [-1,0,+1], equivalently for arbitrary Omega_0 <= 1.
Synthesis and application of new polymer bound catalysts
Fetterly, Brandon Michael
2005-08-01
Nitric acid has been shown to be a weak acid in acetonitrile. It is conceivable that a nitrate salt of a weakly Lewis acidic cation could furnish a ''naked'' nitrate anion as a basic catalyst in a variety of reactions in non-aqueous solvents. Such a nitrate salt could also be bound to a polymeric support via the cation, thereby allowing for reclamation and recycling of the nitrate ion. This subject is dealt with in Chapter 2, wherein my contributions consisted of performing all the reactions with the polymer supported catalyst and carrying out the experiments necessary to shed light on the reaction mechanisms. Chapter 3 contains a description of the structure and catalytic properties of an azidoproazaphosphatrane. This compound is an air-stable versatile catalyst that has proven useful not only homogeneously, but also when bound to a solid support. The synthesis of a polymer bound proazaphosphatrane containing a trivalent phosphorus is presented in Chapter 4. Such a compound has been sought after by our group for a number of years. Not only does the synthesis I have accomplished for it allow for easier separation of proazaphosphatrane catalysts from reaction mixtures, but recycling of the base is made much simpler. Proazaphosphatranes are useful homogeneous catalysts that activate atoms in other reagents, thus enhancing their reactivity. The next chapters deal with two such reactions with aldehydes and ketones, namely silylcyanations with trialkylsilylcyanides (Chapters 5 and 6) and reductions with poly(methylhydrosiloxane), in Chapter 7. In Chapter 5, Zhigang Wang performed the initial optimization and scoping of the reaction, while repetitions of the scoping experiments for reproducibility, determination of diastereomeric ratios, and experiments aimed at elucidating aspects of the mechanism were performed by me. The proazaphosphatrane coordinates to the silicon atom in both cases, thereby allowing the aforementioned reactions to proceed under much milder conditions. Proazaphosphatranes are also effective Broensted-Lowry bases. This is illustrated in Chapter 8 wherein a wide variety of conjugate addition reactions are catalyzed by proazaphosphatranes. In that chapter, repetitions of the nitroalkane addition reactions for reproducibility, improved spectral data for the products and comparisons of literature yields of all reactions were performed by the author.
Security bounds for efficient decoy-state quantum key distribution
Marco Lucamarini; James F. Dynes; Bernd Fröhlich; Zhiliang Yuan; Andrew J. Shields
2015-03-25
Information-theoretical security of quantum key distribution (QKD) has been convincingly proven in recent years and remarkable experiments have shown the potential of QKD for real world applications. Due to its unique capability of combining high key rate and security in a realistic finite-size scenario, the efficient version of the BB84 QKD protocol endowed with decoy states has been subject of intensive research. Its recent experimental implementation finally demonstrated a secure key rate beyond 1 Mbps over a 50 km optical fiber. However the achieved rate holds under the restrictive assumption that the eavesdropper performs collective attacks. Here, we review the protocol and generalize its security. We exploit a map by Ahrens to rigorously upper bound the Hypergeometric distribution resulting from a general eavesdropping. Despite the extended applicability of the new protocol, its key rate is only marginally smaller than its predecessor in all cases of practical interest.
Detection attacks on cryptographic protocols and bound randomness
Antonio Acín; Daniel Cavalcanti; Elsa Passaro; Stefano Pironio; Paul Skrzypczyk
2015-04-30
In recent years, several hacking attacks have broken the security of quantum cryptography implementations by exploiting the presence of losses and the ability of the eavesdropper to tune detection efficiencies. We present a simple attack of this form that applies to any protocol in which the key is constructed from the results of untrusted measurements performed on particles coming from an insecure source or channel. Because of its generality, the attack applies to a large class of protocols, from standard prepare-and-measure to device-independent schemes. The derived critical detection efficiencies for security imply that the implementation of most partly device independent solutions is, from the point of view of detection efficiency, almost as demanding as fully device-independent ones. We also show how our attack implies the existence of a form of bound randomness, namely non-local correlations in which a non-signalling eavesdropper can find out a posteriori the result of any implemented measurement.
Bound Chains of Tilted Dipoles in Layered Systems
A. G. Volosniev; J. R. Armstrong; D. V. Fedorov; A. S. Jensen; N. T. Zinner
2012-03-01
Ultracold polar molecules in multilayered systems have been experimentally realized very recently. While experiments study these systems almost exclusively through their chemical reactivity, the outlook for creating and manipulating exotic few- and many-body physics in dipolar systems is fascinating. Here we concentrate on few-body states in a multilayered setup. We exploit the geometry of the interlayer potential to calculate the two- and three-body chains with one molecule in each layer. The focus is on dipoles that are aligned at some angle with respect to the layer planes by means of an external eletric field. The binding energy and the spatial structure of the bound states are studied in several different ways using analytical approaches. The results are compared to stochastic variational calculations and very good agreement is found. We conclude that approximations based on harmonic oscillator potentials are accurate even for tilted dipoles when the geometry of the potential landscape is taken into account.
Reactivity of Metal Ions Bound to Water-Soluble Polymers
Sauer, N.N.; Watkins, J.G.; Lin, M.; Birnbaum, E.R.; Robison, T.W.; Smith, B.F.; Gohdes, J.W.; McDonald, J.G.
1999-06-29
The intent of this work is to determine the effectiveness of catalysts covalently bound to polymers and to understand the consequences of supporting the catalysts on catalyst efficiency and selectivity. Rhodium phosphine complexes with functional groups for coupling to polymers were prepared. These catalyst precursors were characterized using standard techniques including IR, NMR, and elemental analysis. Studies on the modified catalysts showed that they were still active hydrogenation catalysts. However, tethering of the catalysts to polyamines gave systems with low hydrogenation activity. Analogous biphasic systems were also explored. Phosphine ligands with a surfactant-like structure have been synthesized and used to prepare catalytically active complexes of palladium. The palladium complexes were utilized in Heck-type coupling reactions (e.g. coupling of iodobenzene and ethyl acrylate to produce ethyl cinnamate) under vigorously stirred biphasic reaction conditions, and were found to offer superior performance over a standard water-soluble palladium catalyst under analogous conditions.
On the existence of bound states in asymmetric leaky wires
Pavel Exner; Semjon Vugalter
2015-05-10
We analyze spectral properties of a leaky wire model with a potential bias. It describes a two-dimensional quantum particle exposed to a potential consisting of two parts. One is an attractive $\\delta$-interaction supported by a non-straight, piecewise smooth curve $\\mathcal{L}$ dividing the plane into two regions of which one, the `interior', is convex. The other interaction component is a constant positive potential $V_0$ in one of the regions. We show that in the critical case, $V_0=\\alpha^2$, the discrete spectrum is non-void if and only if the bias is supported in the interior. We also analyze the non-critical situations, in particular, we show that in the subcritical case, $V_0<\\alpha^2$, the system may have any finite number of bound states provided the angle between the asymptotes of $\\mathcal{L}$ is small enough.
Randomized Algorithms and Lower Bounds for Quantum Simulation
Chi Zhang
2009-10-21
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.
Continuum discretized BCS approach for weakly bound nuclei
J. A. Lay; C. E. Alonso; L. Fortunato; A. Vitturi
2015-10-12
The Bardeen-Cooper-Schrieffer (BCS) formalism is extended by including the single-particle continuum, thus enabling the analysis of an isotopic chain from stability up to the drip line. We propose a continuum discretized generalized BCS based on single-particle pseudostates (PS). These PS are generated from the diagonalization of the single-particle Hamiltonian within a Transformed Harmonic Oscillator (THO) basis. The consistency of the results versus the size of the basis is studied. The method is applied to neutron rich Oxygen and Carbon isotopes and compared with similar previous works and available experimental data. We make use of the flexibility of the proposed model in order to study the evolution of the occupation of the low-energy continuum when the system becomes weakly bound. We find a larger influence of the non-resonant continuum as long as the Fermi level approaches zero.
Universality and scaling limit of weakly-bound tetramers
M. R. Hadizadeh; M. T. Yamashita; Lauro Tomio; A. Delfino; T. Frederico
2011-01-02
The occurrence of a new limit cycle in few-body physics, expressing a universal scaling function relating the binding energies of two consecutive tetramer states, is revealed, considering a renormalized zero-range two-body interaction applied to four identical bosons. The tetramer energy spectrum is obtained when adding a boson to an Efimov bound state with energy $B_3$ in the unitary limit (for zero two-body binding, or infinite two-body scattering length). Each excited $N-$th tetramer energy $B_4^{(N)}$ is shown to slide along a scaling function as a short-range four-body scale is changed, emerging from the 3+1 threshold for a universal ratio $B_4^ {(N)}/B_3 \\simeq 4.6$, which does not depend on $N$. The new scale can also be revealed by a resonance in the atom-trimer recombination process.
Universality and scaling limit of weakly-bound tetramers
Hadizadeh, M R; Tomio, Lauro; Delfino, A; Frederico, T
2011-01-01
The occurrence of a new limit cycle in few-body physics, expressing a universal scaling function relating the binding energies of two consecutive tetramer states, is revealed, considering a renormalized zero-range two-body interaction applied to four identical bosons. The tetramer energy spectrum is obtained when adding a boson to an Efimov bound state with energy $B_3$ in the unitary limit (for zero two-body binding, or infinite two-body scattering length). Each excited $N-$th tetramer energy $B_4^{(N)}$ is shown to slide along a scaling function as a short-range four-body scale is changed, emerging from the 3+1 threshold for a universal ratio $B_4^ {(N)}/B_3 \\simeq 4.6$, which does not depend on $N$. The new scale can also be revealed by a resonance in the atom-trimer recombination process.
Nontrivial Geometries: Bounds on the Curvature of the Universe
Laura Mersini-Houghton; Yun Wang; Pia Mukherjee; Ervin Kafexhiu
2007-05-02
Probing the geometry of the universe is one of the most important endevours in cosmology. Current observational data from the Cosmic Microwave Background anisotropy (CMB), galaxy surveys and type Ia supernovae (SNe Ia) strongly constrain the curvature of the universe to be close to zero for a universe dominated by a cosmological constant or dark energy with a constant equation of state. Here we investigate the role of cosmic priors on deriving these tight bounds on geometry, by considering a landscape motivated scenario with an oscillating curvature term. We perform a likelihood analysis of current data under such a model of non-trivial geometry and find that the uncertainties on curvature, and correspondingly on parameters of the matter and dark energy sectors, are larger. Future dark energy experiments together with CMB data from experiments like Planck could dramatically improve our ability to constrain cosmic curvature under such models enabling us to probe possible imprints of quantum gravity.
The bound on the renormalized charge in quantum electrodynamics and in the Wess-Zumino model
Krasnikov, N.V. (Institute for Nuclear Research, Academy of Sciences of the USSR, Moscow 11712 (SU))
1991-03-14
This paper reports on an upper bound on the renormalized coupling constant {alpha} {le} 3{pi}{epsilon} + O({epsilon}{sup 2}) found in quantum electrodynamics in n = 4 {minus} 2{epsilon} space-time. Analogous bound is obtained for a la Speer regularized Wess-Zumino model. The obtained bound means the triviality of QED and the Wess-Zumino model in the limit of the regularization removing.
Relationship of the serum protein-bound iodine to rates of gain in beef cattle
Stokes, David Kershaw
1956-01-01
HERITABILITY AND REPEATABILITY OF THE SERUM PROTEIN- BOUND IODINE IN IMMATURE BEEF CATTLE...................... 13 THE METHOD OF MEASUREMENT OF SERUM PROTEIN- BOUND IODINE............................................ 13 REPEATABILITY OF THE SERUM PBI LEVEL.................... 17 ESTIMATES OF HE RIT ABILITY OF THE SERUM PBI LEVEL IN IMMATURE BEEF CATTLE......................... 23 RELATIONSHIP OF THE SERUM PROTEIN-BOUND IODINE LEVELS TO RATES OF GAIN IN IMMATURE BEEF CATTLE......... 31 PROCEDURE...
Lower Bounds on the Exchange-Correlation Energy in Reduced Dimensions
Räasänen, E; Capelle, K; Proetto, C R
2009-01-01
Bounds on the exchange-correlation energy of many-electron systems are derived and tested. By using universal scaling properties of the electron-electron interaction, we obtain the exponent of the bounds in three, two, one, and quasi-one dimensions. From the properties of the electron gas in the dilute regime, the tightest estimate to date is given for the numerical prefactor of the bound, which is crucial in practical applications. Numerical tests on various low-dimensional systems are in line with the bounds obtained, and give evidence of an interesting dimensional crossover between two and one dimensions.
Entropy bound for a charged object from the Kerr-Newman black hole
B. Linet
1999-03-31
We derive again the upper entropy bound for a charged object by employing thermodynamics of the Kerr-Newman black hole linearised with respect to its electric charge
Marc Briant
2014-11-05
We prove the immediate appearance of an exponential lower bound, uniform in time and space, for continuous mild solutions to the full Boltzmann equation in a $C^2$ convex bounded domain with the physical Maxwellian diffusion boundary conditions, under the sole assumption of regularity of the solution. We investigate a wide range of collision kernels, with and without Grad's angular cutoff assumption. In particular, the lower bound is proven to be Maxwellian in the case of cutoff collision kernels. Moreover, these results are entirely constructive if the initial distribution contains no vacuum, with explicit constants depending only on the \\textit{a priori} bounds on the solution.
Efficient upper and lower bounds for global mixed-integer optimal ...
2013-11-07
operated in two discrete modes, leading either to acceleration and energy consump- .... For this procedure asymptotic bounds and very efficient algorithms.
Disordered pinning models and copolymers: beyond annealed bounds
Fabio Lucio Toninelli
2008-08-22
We consider a general model of a disordered copolymer with adsorption. This includes, as particular cases, a generalization of the copolymer at a selective interface introduced by Garel et al. [Europhys. Lett. 8 (1989) 9--13], pinning and wetting models in various dimensions, and the Poland--Scheraga model of DNA denaturation. We prove a new variational upper bound for the free energy via an estimation of noninteger moments of the partition function. As an application, we show that for strong disorder the quenched critical point differs from the annealed one, for example, if the disorder distribution is Gaussian. In particular, for pinning models with loop exponent $0model, under a (restrictive) condition on the law of the underlying renewal, we show that the critical point coincides with the one predicted via renormalization group arguments in the theoretical physics literature. A stronger result holds for a "reduced wetting model" introduced by Bodineau and Giacomin [J. Statist. Phys. 117 (2004) 801--818]: without restrictions on the law of the underlying renewal, the critical point coincides with the corresponding renormalization group prediction.
Topological modes bound to dislocations in mechanical metamaterials
Jayson Paulose; Bryan Gin-ge Chen; Vincenzo Vitelli
2015-04-23
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.
Cauchy's formulas for random walks in bounded domains
Mazzolo, Alain, E-mail: alain.mazzolo@cea.fr; Zoia, Andrea, E-mail: andrea.zoia@cea.fr [CEA/Saclay, DEN/DANS/DM2S/SERMA/LTSD, 91191 Gif-sur-Yvette (France); Mulatier, Clélia de, E-mail: clelia.demulatier@cea.fr [CEA/Saclay, DEN/DANS/DM2S/SERMA/LTSD, 91191 Gif-sur-Yvette and CNRS - Université Paris-Sud, LPTMS, UMR8626, 91405 Orsay Cedex (France)
2014-08-01
Cauchy's formula was originally established for random straight paths crossing a body B?R{sup n} and basically relates the average chord length through B to the ratio between the volume and the surface of the body itself. The original statement was later extended in the context of transport theory so as to cover the stochastic paths of Pearson random walks with exponentially distributed flight lengths traversing a bounded domain. Some heuristic arguments suggest that Cauchy's formula may also hold true for Pearson random walks with arbitrarily distributed flight lengths. For such a broad class of stochastic processes, we rigorously derive a generalized Cauchy's formula for the average length traveled by the walkers in the body, and show that this quantity depends indeed only on the ratio between the volume and the surface, provided that some constraints are imposed on the entrance step of the walker in B. Similar results are also obtained for the average number of collisions performed by the walker in B.
Probing the Dark Sector with Dark Matter Bound States
Haipeng An; Bertrand Echenard; Maxim Pospelov; Yue Zhang
2015-10-16
A model of dark sector where $O({\\rm few~GeV})$ mass dark matter particles $\\chi$ are supplied by a lighter dark force mediator $V$, $m_V \\ll m_\\chi$, is motivated by the recently discovered mismatch between simulated and observed shapes of galactic haloes. Such models, in general, provide a challenge for direct detection efforts and collider searches. We show that for a large range of coupling constants and masses, the production and decay of the bound states of $\\chi$, such as $0^{-+}$ and $1^{--}$ states, $\\eta_D$ and $ \\Upsilon_D$, is an important search channel. We show that $e^+e^-\\to \\eta_D +V$ or $\\Upsilon_D +\\gamma$ production at $B$-factories for $\\alpha_D > 0.1$ is sufficiently strong to result in multiple pairs of charged leptons and pions via $\\eta_D\\to 2V \\to 2(l^+l^-)$ and $\\Upsilon_D\\to 3V \\to 3(l^+l^-)$ $(l=e,\\mu,\\pi)$. The absence of such final states in the existing searches performed at BaBar and Belle sets new constraints on the parameter space of the model. We also show that a search for multiple bremsstrahlung of dark force mediators, $e^+e^-\\to \\chi\\bar\\chi+nV$, resulting in missing energy and multiple leptons, will further improve the sensitivity to self-interacting dark matter.
Finite Energy and Bounded Attacks on Control System Sensor Signals
Djouadi, Seddik M; Melin, Alexander M; Ferragut, Erik M; Laska, Jason A
2014-01-01
Control system networks are increasingly being connected to enterprise level networks. These connections leave critical industrial controls systems vulnerable to cyber-attacks. Most of the effort in protecting these cyber-physical systems (CPS) has been in securing the networks using information security techniques and protection and reliability concerns at the control system level against random hardware and software failures. However, besides these failures the inability of information security techniques to protect against all intrusions means that the control system must be resilient to various signal attacks for which new analysis and detection methods need to be developed. In this paper, sensor signal attacks are analyzed for observer-based controlled systems. The threat surface for sensor signal attacks is subdivided into denial of service, finite energy, and bounded attacks. In particular, the error signals between states of attack free systems and systems subject to these attacks are quantified. Optimal sensor and actuator signal attacks for the finite and infinite horizon linear quadratic (LQ) control in terms of maximizing the corresponding cost functions are computed. The closed-loop system under optimal signal attacks are provided. Illustrative numerical examples are provided together with an application to a power network with distributed LQ controllers.
A Skyrme-like model with an exact BPS bound
L. A. Ferreira; Wojtek J. Zakrzewski
2013-07-22
We propose a new Skyrme-like model with fields taking values on the sphere S^3 or, equivalently, on the group SU(2). The action of the model contains a quadratic kinetic term plus a quartic term which is the same as that of the Skyrme-Faddeev model. The novelty of the model is that it possess a first order Bogomolny type equation whose solutions automatically satisfy the second order Euler-Lagrange equations. It also possesses a lower bound on the static energy which is saturated by the Bogomolny solutions. Such Bogomolny equation is equivalent to the so-called force free equation used in plasma and solar Physics, and which possesses large classes of solutions. An old result due to Chandrasekhar prevents the existence of finite energy solutions for the force free equation on the entire tridimensional space R^3. We construct new exact finite energy solutions to the Bogomolny equations for the case where the space is the three-sphere S^3, using toroidal like coordinates.
Simons, Jack
Dispersion Stabilization of Solvated Electrons and Dipole-Bound Anions Maciej Gutowski*,, and Piotr, 1997; In Final Form: September 9, 1997X It has long been assumed that stability of "solvated electrons" and dipole-bound anions results primarily from the static Coulomb interaction of an excess electron
Bounds on the Mobility of Electrons in Weakly Ionized Plasmas A. Rokhlenko, Department energy of electrons, driven by an external field in a weakly ionized plasma (swarm approximation. The bounds prove rigorously that it is possible to increase the electron mobility by the addition of suitably
A geometric approach for the upper bound theorem for Minkowski sums of convex polytopes
Karavelas, Menelaos
the tightness of the upper bounds. 1998 ACM Subject Classification F.2.2 Nonnumerical Algorithms and Problems sum, upper bound Digital Object Identifier 10.4230/LIPIcs.xxx.yyy.p 1 Introduction Given two sets algebra, collision detection, computer-aided design, graphics, robot motion planning and game theory, just
On the Power of Uniform Power: Capacity of Wireless Networks with Bounded
On the Power of Uniform Power: Capacity of Wireless Networks with Bounded Resources Chen Avin1-case performance of uniform and non-uniform power assignments differ under constraints such as a bound on the area where nodes are distributed or restrictions on the maximum power available. We determine the maximum
Improved Approximation Algorithms for the Min-max Tree Cover and Bounded Tree Cover Problems
Salavatipour, Mohammad R.
). In this paper we consider Min-Max k-Tree Cover Problem (MMkTC) and Bounded Tree Cover Problem (BTC) defined of the largest tree in the cover is minimized. In the Bounded Tree Cover problem (BTC), we are given the weight G
Designing Reversibility-Enforcing Supervisors of Polynomial Complexity for Bounded Petri Nets
Reveliotis, Spiridon "Spyros"
Designing Reversibility-Enforcing Supervisors of Polynomial Complexity for Bounded Petri Nets Samsung Networks Inc. jin young.choi@samsung.com Abstract. This paper proposes an analytical method for the synthesis of reversibility-enforcing supervisors for bounded Petri nets. The proposed method builds upon
Entropy bound of a charged object and electrostatic self-energy in black holes
B. Linet
1999-11-30
Without pretending to any rigour, we find a general expression of the electrostatic self-energy in static black holes with spherical symmetry. We determine the entropy bound of a charged object by assuming the existence of thermodynamics for these black holes. By combining these two results, we show that the entropy bound does not depend on the considered black hole.
An RFID Distance Bounding Gerhard P. Hancke and Markus G. Kuhn
Hancke, Gerhard
range Used to link an item or person to a location An RFID Distance Bounding Protocol p. #12;Relay application layer security protocols An RFID Distance Bounding Protocol p. #12;Relay attack demonstration Proxy Token 14443 A/B test card circuit Signal processing with discrete components Duplex RF link Proxy
Hammock, Bruce D.
Evidence of Quinone Metabolites of Naphthalene Covalently Bound to Sulfur Nucleophiles of Proteins in the mouse is associated with the covalent binding of electrophilic metabolites to cellular proteins. Epoxide binding to proteins. To identify the nature of reactive metabolites bound to proteins (cysteine residues
Sharp upper bounds on the number of resonances near the real axis ...
system for which this bound is optimal and also prove similar bound in case of ... in the abstract “black box scattering” setting introduced by Sj?strand and Zworski [SjZ] (see next section). It is ...... M. ZWORSKI, private communication, 1992.
Capacity Bounds for Energy Efficient Data Streaming in Homogeneous Wireless Ad Hoc Networks
Li, Zongpeng
Capacity Bounds for Energy Efficient Data Streaming in Homogeneous Wireless Ad Hoc Networks Hanan activation schemes with provable asymptotic bounds on the capacity and energy efficiency of the induced add to the noise levels of each other and cause the overall network capacity to decrease
IEEE TRANSACTIONS ON COMMUNICATIONS 1 An Efficient Algorithmic Lower Bound for the
Wehlau, David
IEEE TRANSACTIONS ON COMMUNICATIONS 1 An Efficient Algorithmic Lower Bound for the Error Rate of Linear Block Codes Firouz Behnamfar, Member, IEEE, Fady Alajaji, Senior Member, IEEE, and Tam´as Linder, Senior Member, IEEE Abstract We present an efficient algorithmic lower bound for the block error rate
Computing Upper and Lower Bounds for the J-integral in Two-Dimensional Linear
Peraire, Jaime
and Education, China bLaboratori de C`alcul Num`eric, Universitat Polit`ecnica de Catalunya, Barcelona, Spain c. The quadratic component is bounded by the energy norm of the error scaled by a continuity constant, which in the displacement and in a computed adjoint solution, and bounded by an appropriate combination of the energy norms
Bounds for the price of discrete arithmetic Asian options M. Vanmaele
Vanmaele, Michčle
on discrete averaging which is the normal specification in real contracts. Discrete arithmetic Asian optionsBounds for the price of discrete arithmetic Asian options M. Vanmaele , G. Deelstra , J. Liinev , J.Goovaerts@econ.kuleuven.ac.be, Tel. +32 16 326750. #12;Bounds for the price of discrete arithmetic Asian options Abstract
2004July Lower Bounds for Adaptive Collect and Related Objects / Attiya, Fich and Kaplan
Attiya, Hagit
2004July Lower Bounds for Adaptive Collect and Related Objects / Attiya, Fich and Kaplan 1 Lower of Toronto Yaniv Kaplan, Technion 2004July Lower Bounds for Adaptive Collect and Related Objects / Attiya, Fich and Kaplan 2 p1 p2 p3 p4 p5 p6 p7 write read Asynchronous Shared-Memory Systems All registers
Zero-Entropy Minimization for Blind Extraction of Bounded Sources (BEBS)
Verleysen, Michel
Zero-Entropy Minimization for Blind Extraction of Bounded Sources (BEBS) Fr´ed´eric Vrins1 , Deniz, we focus on zero-order Renyi's entropy minimization for the blind extraction of bounded sources (BEBS in the context of BEBS, when the sources have non-convex supports. 1 Introduction Shannon's entropy is a powerful
Improving Bounds on the Football Pool Problem via Symmetry Reduction and High-Throughput Computing
Linderoth, Jeffrey T.
Improving Bounds on the Football Pool Problem via Symmetry Reduction and High-Throughput Computing of Wisconsin-Madison, 1210 W. Dayton St., Madison, WI 53706, USA, gthain@cs.wisc.edu The Football Pool Problem theory. Key words: Football Pool Problem; High-Throughput Computing; Branch-and-Bound; Con- dor; Master
Bounds on R-parity violating supersymmetric couplings from leptonic and semileptonic meson decays
Dreiner, H. K.; Kraemer, M.; O'Leary, Ben [Physikalisches Institut der Universitaet Bonn, Nussallee 12, 53115 Bonn (Germany); Institut fuer Theoretische Physik E, RWTH Aachen, 52056 Aachen (Germany); S.U.P.A., School of Physics, University of Edinburgh, Edinburgh EH9 3JZ, Scotland (United Kingdom) and Institut fuer Theoretische Physik E, RWTH Aachen, 52056 Aachen (Germany)
2007-06-01
We present a comprehensive update of the bounds on R-parity violating supersymmetric couplings from lepton-flavor- and lepton-number-violating decay processes. We consider {tau} and {mu} decays as well as leptonic and semileptonic decays of mesons. We present several new bounds resulting from {tau}, {eta}, and kaon decays and correct some results in the literature concerning B meson decays.
Bounding the Energy Consumption of Mobile Sensor Nodes For Triangulation-based Coverage
Krovi, Venkat
1 Bounding the Energy Consumption of Mobile Sensor Nodes For Triangulation-based Coverage Asheq the energy consumption of the MTA interms of the distance and time taken to complete the full coverage of the field. The bounds on the minimum total and individual energy consumption per MSN is determined. A prior
Extremal Trajectories for Bounded Velocity Mobile Robots Devin J. Balkcom and Matthew T. Mason
Balkcom, Devin
with velocity and angular velocity controls. The systems are differentiated only by the bounds on the con- trols, with velocity and angular velocity controls. For these sys- tems, the instantaneous rotation center. For the steered car, the bounds on velocity and angular velocity are derived from con- straints on steering angle
New method for extracting quasi-bound states from the continuum
J. B. Faes; M. Ploszajczak
2007-09-19
A new parameter-free method is proposed for treatment of single-particle resonances in the real-energy continuum shell model. This method yields quasi-bound states embedded in the continuum which provide a natural generalization of weakly bound single-particle states.
Bounding the bending of a hyperbolic 3-manifold Martin Bridgeman and Richard D. Canary
Canary, Dick
, 2015 Abstract In this paper we obtain bounds on the total bending of the boundary of the convex coreBounding the bending of a hyperbolic 3-manifold Martin Bridgeman and Richard D. Canary April 19 the bending lamination. The bending lamination inherits a transverse measure which keeps track of how much
Bounding the bending of a hyperbolic 3manifold Martin Bridgeman and Richard D. Canary \\Lambda
Canary, Dick
September 29, 2002 Abstract In this paper we obtain bounds on the total bending of the boundaryBounding the bending of a hyperbolic 3Âmanifold Martin Bridgeman and Richard D. Canary \\Lambda, called the bending lamination. The bending lamination inherits a transverse measure which keeps track
Bounds on the Bethe Free Energy for Gaussian Networks Botond Cseke
Edinburgh, University of
Bounds on the Bethe Free Energy for Gaussian Networks Botond Cseke Faculty of Science Radboud Bethe free energy in terms of the moment parameters of the approximate marginals and derive an upper): even when the Bethe free energy is not bounded from below, it can possess a local minimum to which
Set-Membership Identification Based Adaptive Robust Control of Systems With Unknown Parameter Bounds
Yao, Bin
. The estimated parameter variation bounds are subsequently used to construct a continuous-time domain projection Bounds Lu Lu and Bin Yao Abstract-- In this paper, a hybrid control architecture is proposed to obtain non-conservative real-time estimation of the regions where model parameters could actually be
ERROR BOUNDS FOR MONOTONE APPROXIMATION SCHEMES FOR HAMILTON-JACOBI-BELLMAN
ERROR BOUNDS FOR MONOTONE APPROXIMATION SCHEMES FOR HAMILTON-JACOBI-BELLMAN EQUATIONS GUY BARLES AND ESPEN R. JAKOBSEN Abstract. We obtain error bounds for monotone approximation schemes of Hamilton-Jacobi, (almost) smooth supersolutions for the Hamilton-Jacobi-Bellman equation. 1. Introduction This paper
An alternative energy bound derivation for a generalized Hasegawa-Mima equation
Fetecau, Razvan C.
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
THE UNIVERSITY OF CHICAGO AN UPPER BOUND ON THE FREE ENERGY OF THE TRANSITION STATE
Sosnick, Tobin R.
THE UNIVERSITY OF CHICAGO AN UPPER BOUND ON THE FREE ENERGY OF THE TRANSITION STATE..................................................................................50 3 An Upper Bound on the Free Energy of the Transition State of the Ubiquitin Folding Pathway ...................................................................................4 1.2 Transition States of Protein Folding Pathways
Communication Bounds for Heterogeneous Architectures Grey Ballard, James Demmel, and Andrew Gearhart
California at Berkeley, University of
Gearhart University of California, Berkeley Abstract. As the gap between the cost of communication (i become a critical research objective. Toward this end, we seek asymptotic communication lower bounds for general memory models and classes of algorithms. Recent work has established lower bounds for a wide set
Context-Bounded Model Checking of LTL Properties for ANSI-C Software
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
SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro
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
A Branch and Bound Algorithm for the Protein Folding Problem in the HP Lattice Model
Istrail, Sorin
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
A Theory of Topographically Bound Balanced Motions and Application to Atmospheric Low-Level Jets
Schubert, Wayne H.
A Theory of Topographically Bound Balanced Motions and Application to Atmospheric Low-Level Jets is topographically bound low-level jets, such as the South American summertime low-level jet on the eastern side of the Andes and its companion, the Chilean low-level jet on the western side of the Andes. These jets
DEAR: Delay-bounded Energy-constrained Adaptive Routing in Wireless Sensor Networks
Tang, Jian "Neil"
DEAR: Delay-bounded Energy-constrained Adaptive Routing in Wireless Sensor Networks Shi Bai¶, Weiyi in wireless sensor networks. In this work, we study Delay-bounded Energy-constrained Adaptive Routing (DEAR) problem with reli- ability, differential delay, and transmission energy consumption constraints
Bounding biomass in the Fisher equation Daniel A. Birch,* Yue-Kin Tsang,
Young, William R.
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
Pricing the American Put Using A New Class of Tight Lower Bounds Malik Magdon-Ismail
Magdon-Ismail, Malik
, and an important issue is the trade off between the pricing accuracy and the computational cost. Our approachPricing the American Put Using A New Class of Tight Lower Bounds Malik Magdon-Ismail Department of lower bounds for the price of the American put option on a dividend paying stock when the stock follows
A lower bound for the tree-width of planar graphs with vital linkages
Adler, Isolde
A lower bound for the tree-width of planar graphs with vital linkages Isolde Adler, Philipp Klaus implementable. The algorithm uses a bound on the tree- width of graphs with vital linkages, and deletion with vital linkages, and for the size of the grid necessary for finding irrelevant vertices. 1 Introduction
Ground state energy of the low density Hubbard model. An upper bound.
Roma "La Sapienza", Universitŕ di
Ground state energy of the low density Hubbard model. An upper bound. Alessandro Giuliani an upper bound on the ground state energy of the three-dimensional (3D) repulsive Hubbard model on the cubic lattice agreeing in the low density limit with the known asymptotic expression of the ground state
Constraining a fourth generation of quarks: non-perturbative Higgs boson mass bounds
John Bulava; Karl Jansen; Attila Nagy
2013-01-15
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.
Simonetti, Angelita; Fabbretti, Attilio; Hazemann, Isabelle; Jenner, Lasse; Gualerzi, Claudio O.; Klaholz, Bruno P.
2013-06-01
The crystal structures of the eubacterial translation initiation factor 2 in apo form and with bound GDP and GTP reveal conformational changes upon nucleotide binding and hydrolysis, notably of the catalytically important histidine in the switch II region. Translation initiation factor 2 (IF2) is involved in the early steps of bacterial protein synthesis. It promotes the stabilization of the initiator tRNA on the 30S initiation complex (IC) and triggers GTP hydrolysis upon ribosomal subunit joining. While the structure of an archaeal homologue (a/eIF5B) is known, there are significant sequence and functional differences in eubacterial IF2, while the trimeric eukaryotic IF2 is completely unrelated. Here, the crystal structure of the apo IF2 protein core from Thermus thermophilus has been determined by MAD phasing and the structures of GTP and GDP complexes were also obtained. The IF2–GTP complex was trapped by soaking with GTP in the cryoprotectant. The structures revealed conformational changes of the protein upon nucleotide binding, in particular in the P-loop region, which extend to the functionally relevant switch II region. The latter carries a catalytically important and conserved histidine residue which is observed in different conformations in the GTP and GDP complexes. Overall, this work provides the first crystal structure of a eubacterial IF2 and suggests that activation of GTP hydrolysis may occur by a conformational repositioning of the histidine residue.
Upper Higgs boson mass bounds from a chirally invariant lattice Higgs-Yukawa model
P. Gerhold; K. Jansen
2010-02-23
We establish the cutoff-dependent upper Higgs boson mass bound by means of direct lattice computations in the framework of a chirally invariant lattice Higgs-Yukawa model emulating the same chiral Yukawa coupling structure as in the Higgs-fermion sector of the Standard Model. As expected from the triviality picture of the Higgs sector, we observe the upper mass bound to decrease with rising cutoff parameter $\\Lambda$. Moreover, the strength of the fermionic contribution to the upper mass bound is explored by comparing to the corresponding analysis in the pure $\\Phi^4$-theory.
A lower bound on expected communication cost of quantum state merging
Anurag Anshu
2015-06-21
We show a lower bound on expected communication cost of one-way entanglement assisted quantum state merging and a slightly better lower bound for its special case, quantum state transfer. Our bound implies that the expected communication cost of one-way protocols is not significantly better than worst case communication cost, in terms of scaling of error. Our argument is based on a technical tool of convex split, introduced recently in context of quantum state redistribution in Anshu,Jain,Devabathini[2014].
Bounds on the growth of high Sobolev norms of solutions to nonlinear Schrödinger equations
Sohinger, Vedran
2011-01-01
In this thesis, we study the growth of Sobolev norms of global solutions of solutions to nonlinear Schrödinger type equations which we can't bound from above by energy conservation. The growth of such norms gives a ...
Ultrahigh-energy cosmic-ray bounds on nonbirefringent modified Maxwell theory
Klinkhamer, F. R.; Risse, M.
2008-01-01
A particularly simple Lorentz-violating modification of the Maxwell theory of photons maintains gauge invariance, CPT, and renormalization. This modified Maxwell theory, coupled to standard Dirac particles, involves 19 dimensionless 'deformation parameters'. Ten of these parameters lead to birefringence and are already tightly constrained by astrophysics. New bounds on the remaining nine nonbirefringent parameters can be obtained from the absence of vacuum Cherenkov radiation for ultrahigh-energy cosmic rays (UHECRs). Using selected UHECR events recorded at the Pierre Auger Observatory and assigning pseudorandom directions (i.e., assuming large-scale isotropy), Cherenkov bounds are found at the 10{sup -18} level, which improve considerably upon current laboratory bounds. Future UHECR observations may reduce these Cherenkov bounds to the 10{sup -23} level.
Boyer, Edmond
-bounded positive-definite matrix-valued random fields in the context of mesoscale modeling of heterogeneous elastic; Heterogeneous materials; Apparent elasticity tensor; Mesoscale modeling; Random field; Non-Gaussian. $ J
Routing Vehicles with Motion, Resource and Mission Constraints: Algorithms and Bounds
Manyam, Satyanarayana Gupta
2015-04-20
). Simulation results are presented to show that this method significantly improved the existing lower bounds. The second problem we consider is the routing of UAVs in GPS denied environments and with limited communication range. Two different architectures...
Fermionic bound states on a one-dimensional lattice Jean-Pierre Nguenang1,2
Flach, Sergej
Laboratory: Group of Nonlinear Physics and Complex Systems, Department of Physics, University of Douala, P.O. Box 24157, Douala, Cameroon Received 8 May 2009; published 31 July 2009 We study bound states of two
A simplied approach for generating frequency domain bounds for QFT designs
Kyle, Eric Jacque
1998-01-01
unnecessary assumptions as well as to purposely use overly conservative constraints. Contained in this thesis is a methodology proposed for generating bounds that eliminate the need for this uncoupling. The new method uses an objective function subjected...
Bonet, J.
We present an implicit a-posteriori finite element procedure to compute bounds for functional outputs of finite element solutions in large strain elasticity. The method proposed relies on the existence of a potential energy ...
The provably total NP search problems of weak second order bounded arithmetic
Kolodziejczyk, Leszek
improvement" princi- ple, about labellings of an acyclic, bounded-degree graph. We show that, provably in PV by finding a node with locally minimal cost in an exponential-size graph with polynomial time cost
Newtonian systems, bounded in space, time, mass and energy can compute all functions1
Martin, Ralph R.
Newtonian systems, bounded in space, time, mass and energy can compute all functions1 E.J. Beggs2, University of Wales Swansea, February 2005. 2 Department of Mathematics. Email: e.j.beggs@swansea.ac.uk 3
New bounds on neutrino electric millicharge from GEMMA experiment on neutrino magnetic moment
Victor B. Brudanin; Dmitry V. Medvedev; Alexander S. Starostin; Alexander I. Studenikin
2014-11-09
Using the new limit on the neutrino anomalous magnetic moment recently obtained by GEMMA experiment we get an order-of-magnitude estimation for possible new direct upper bound on the neutrino electric millicharge $\\mid q_{\
Bounds on the vibrational energy that can be harvested from random base motion
Langley, R. S.
2014-11-29
This paper is concerned with the development of upper bounds on the energy harvesting performance of a general multi-degree-of-freedom nonlinear electromechanical system that is subjected to random base motion and secondary applied periodic forces...
Generalized external interaction with tamper-resistant hardware with bounded information leakage
Yu, Xiangyao
This paper investigates secure ways to interact with tamper-resistant hardware leaking a strictly bounded amount of information. Architectural support for the interaction mechanisms is studied and performance implications ...
Wunsch, Carl
Oceanic nutrient and oxygen transports and bounds on export production during the World Ocean about 100 m). Because of correlations between errors, the export production becomes significant when cycling; 4863 Oceanography: Biological and Chemical: Sedimentation; KEYWORDS: export production, nutrient
Verifying the error bound of numerical computation implemented in computer systems
Sawada, Jun
2013-03-12
A verification tool receives a finite precision definition for an approximation of an infinite precision numerical function implemented in a processor in the form of a polynomial of bounded functions. The verification tool receives a domain for verifying outputs of segments associated with the infinite precision numerical function. The verification tool splits the domain into at least two segments, wherein each segment is non-overlapping with any other segment and converts, for each segment, a polynomial of bounded functions for the segment to a simplified formula comprising a polynomial, an inequality, and a constant for a selected segment. The verification tool calculates upper bounds of the polynomial for the at least two segments, beginning with the selected segment and reports the segments that violate a bounding condition.
Laboratory bounds on Lorentz symmetry violation in low energy neutrino physics
E. Di Grezia; S. Esposito; G. Salesi
2006-03-13
Quantitative bounds on Lorentz symmetry violation in the neutrino sector have been obtained by analyzing existing laboratory data on neutron $\\beta$ decay and pion leptonic decays. In particular some parameters appearing in the energy-momentum dispersion relations for $\
Structure of DNA-Bound FEN1 Reveals Mechanism of Action
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
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...
Rinard, Martin
Probabilistic Accuracy Bounds for Perforated Programs A New Foundation for Program Analysis, Accuracy, Verification, Program Analysis, Program Transformation Keywords Loop Perforation, Program an inherent perfor- mance versus accuracy trade-off -- the more computational re- sources (such as time
Energy Dependence of Solar Neutrino Suppression and Bounds on the Neutrino Magnetic Moment
Joao Pulido; Ana M. Mourao
1998-03-02
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_{\
A Lower Bound on the per Soliton Capacity of the Nonlinear Optical Fibre Channel
Shevchenko, Nikita A; Derevyanko, Stanislav A; Alvarado, Alex; Bayvel, Polina; Turitsyn, Sergei K
2015-01-01
A closed-form expression for a lower bound on the per soliton capacity of the nonlinear optical fibre channel in the presence of (optical) amplifier spontaneous emission (ASE) noise is derived. This bound is based on a non-Gaussian conditional probability density function for the soliton amplitude jitter induced by the ASE noise and is proven to grow logarithmically as the signal-to-noise ratio increases.
On the potential energy in an electrostatically bound two-body system
K. Wilhelm; B. N. Dwivedi
2014-08-30
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.
Seismic reflection data analysis of the Oriente and Swan Fracture Zones bounding the Cayman Trough
Tinker, Mary Norris
1986-01-01
SEISMIC REFLECTION DATA ANALYSIS OF THE ORIENTE AND SWAN FRACTURE ZONES BOUNDING THE CAYMAN TROUGH A Thesis by MARY NORRIS TINKER Submitted to the Graduate College of Texas A8 M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE May 1986 Major Subject: Geophysics SEISMIC REFLECTION DATA ANALYSIS OF THE ORIENTE AND SWAN FRACTURE ZONES BOUNDING THE CAYMAN TROUGH A Thesis by MARY NORRIS TINKER Approved as to style and content by: D. A. Fa quiet...
Scattering and Bound State Green's Functions on a Plane via so(2,1) Lie Algebra
P. F. Borges; H. Boschi-Filho; A. N. Vaidya
2006-10-17
We calculate the Green's functions for the particle-vortex system, for two anyons on a plane with and without a harmonic regulator and in a uniform magnetic field. These Green's functions which describe scattering or bound states (depending on the specific potential in each case) are obtained exactly using an algebraic method related to the SO(2,1) Lie group. From these Green's functions we obtain the corresponding wave functions and for the bound states we also find the energy spectra.
USFS West Wide Programmatic Environmental Impact Statement Record of
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page| Open Energy Information Serbia-EnhancingEt Al.,Turin, New York: EnergyU.S. EPA RegionforUStoNRCS Jump
Current Research Areas in WCSP Group at USF Hseyin Arslan
Arslan, Hüseyin
Aeronautical (HAP) communications Smart grid Interference cancellation and awareness (Handling interference Smart homes and advanced metering Waveform/Modulation designWaveform/Modulation design beyond OFDMA (5G Computer Printer Digital Camera Laptop Computer TV Monitor Audio Wireless Bridge Gateway #12;
for classes Go to http://www.usf.edu
Meyers, Steven D.
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
USFS Humboldt-Toiyabe National Forest | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EA EISTJThin Film SolarTown(LECBP)BioGen LLC JumpForestryForm12 JumpCOSO
Thomas D. Cohen
2005-09-12
An upper bound is derived for $\\Delta$ for a cold dilute fluid of equal amounts of two species of fermion in the unitary regime $k_f a \\to \\infty$ (where $k_f$ is the Fermi momentum and $a$ the scattering length, and $\\Delta$ is a pairing energy: the difference in energy per particle between adding to the system a macroscopic number (but infinitesimal fraction) of particles of one species compared to adding equal numbers of both. The bound is $\\delta \\leq {5/3} (2 (2 \\xi)^{2/5} - (2 \\xi))$ where $\\xi=\\epsilon/\\epsilon_{\\rm FG}$, $\\delta= 2 \\Delta/\\epsilon_{\\rm FG}$; $\\epsilon$ is the energy per particle and $\\epsilon_{\\rm FG}$ is the energy per particle of a noninteracting Fermi gas. If the bound is saturated, then systems with unequal densities of the two species will separate spatially into a superfluid phase with equal numbers of the two species and a normal phase with the excess. If the bound is not saturated then $\\Delta$ is the usual superfluid gap. If the superfluid gap exceeds the maximum allowed by the inequality phase separation occurs.
Efficiency bounds for quantum engines powered by non-thermal baths
Wolfgang Niedenzu; David Gelbwaser-Klimovsky; Abraham G. Kofman; Gershon Kurizki
2015-08-26
We analyse the operation principles and performance bounds of quantum engines whose working fluid (WF) is energised by a non-thermal bath. We show that such a bath (e.g., a squeezed or coherently displaced thermal bath) can render the WF state non-passive, i.e., capable of storing and delivering work. This non-passivity converts the heat engine into a thermo-mechanical machine that is powered by mechanical work, as well as heat, from the non-thermal bath. Its efficiency is unrestricted by the Carnot bound, which only applies to heat engines. By contrast, for certain WF--bath interactions and non-thermal bath states the WF thermalises. The machine then operates as a heat engine, but its Carnot bound may correspond to a higher temperature than its thermal-bath counterpart.
Bounds on New Physics from the New Data on Parity Violation in Atomic Cesium
R. Casalbuoni; S. De Curtis; D. Dominici; R. Gatto
1999-06-28
We assume the latest experimental determination of the weak charge of atomic cesium and analyze its implications for possible new physics. We notice that the data would imply positive upper and lower bounds on the new physics contribution to the weak charge, $\\delta_NQ_W$. The required new physics should be of a type not severely constrained by the high energy precision data. A simplest possibility would be new neutral vector bosons almost un-mixed to the $Z$ and with sizeable couplings to fermions. The lower positive bound would however forbid zero or negative $\\delta_NQ_W$ and exclude not only the standard model but also models with sequential $Z^\\prime$, in particular simple-minded towers of $Z$-like excitations from extra-dimensions. The bound would also imply an upper limit on the $Z^\\prime$ mass within the models allowed. Conclusions are also derived for models of four-fermion contact interactions.
Higgs boson mass bounds in the presence of a heavy fourth quark family
John Bulava; Philipp Gerhold; Karl Jansen; Jim Kallarackal; Attila Nagy
2013-01-16
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.
Minimal time trajectories for two-level quantum systems with two bounded controls
Boscain, Ugo; Grönberg, Fredrik; Long, Ruixing; Rabitz, Herschel
2014-06-15
In this paper we consider the minimum time population transfer problem for a two level quantum system driven by two external fields with bounded amplitude. The controls are modeled as real functions and we do not use the Rotating Wave Approximation. After projection on the Bloch sphere, we treat the time-optimal control problem with techniques of optimal synthesis on 2D manifolds. Based on the Pontryagin Maximum Principle, we characterize a restricted set of candidate optimal trajectories. Properties on this set, crucial for complete optimal synthesis, are illustrated by numerical simulations. Furthermore, when the two controls have the same bound and this bound is small with respect to the difference of the two energy levels, we get a complete optimal synthesis up to a small neighborhood of the antipodal point of the initial condition.
Lower Bounds on Q for Finite Size Antennas of Arbitrary Shape
Kim, Oleksiy S
2015-01-01
The problem of the lower bound on the radiation Q for an arbitrarily shaped finite size antenna of non-zero volume is formulated in terms of equivalent electric and magnetic currents densities distributed on a closed surface coinciding with antenna exterior surface. When these equivalent currents radiate in free space, the magnetic current augments the electric current, so that the fields interior to the surface vanish. In contrast to approaches based solely on electric currents, the proposed technique ensures no stored energy interior to the antenna exterior surface, and thus, allows the fundamental lower bound on Q to be determined. To facilitate the computation of the bound, new expressions for the stored energy, radiated power, and Q of coupled electric and magnetic source currents in free space are derived.
Bound-state formation for thermal relic dark matter and unitarity
Harling, Benedict von; Petraki, Kalliopi E-mail: kpetraki@nikhef.nl
2014-12-01
We show that the relic abundance of thermal dark matter annihilating via a long-range interaction, is significantly affected by the formation and decay of dark matter bound states in the early universe, if the dark matter mass is above a few TeV . We determine the coupling required to obtain the observed dark matter density, taking into account both the direct 2-to-2 annihilations and the formation of bound states, and provide an analytical fit. We argue that the unitarity limit on the inelastic cross-section is realized only if dark matter annihilates via a long-range interaction, and we determine the upper bound on the mass of thermal-relic dark matter to be about 197 (139) TeV for (non)-self-conjugate dark matter.
Rigorous bounds of the Lyapunov exponents of the one-dimensional random Ising model
Pasquini, M.; Paladin, G.; Serva, M. [Universita dell`Aquila, L`Aquila (Italy)
1995-07-01
We find analytic upper and lower bounds of the Lyapunov exponents of the product of random matrices related to the one-dimensional disordered Ising model, using a deterministic map which transforms the original system into a new one with smaller average couplings and magnetic fields. The iteration of the map gives bounds which estimate the Lyapunov exponents with increasing accuracy. We prove, in fact, that both the upper and the lower bounds converge to the Lyapunov exponents in the limit of infinite iterations of the map. A formal expression of the Lyapunov exponents is thus obtained in terms of the limit of a sequence. Our results allow us to introduce a new numerical procedure for the computation of the Lyapunov exponents which has a precision higher than Monte Carlo simulations.
Bounds on the interior geometry and pressure profile of static fluid spheres
Damien Martin; Matt Visser
2003-06-10
It is a famous result of relativistic stellar structure that (under mild technical conditions) a static fluid sphere satisfies the Buchdahl--Bondi bound 2M/R <= 8/9; the surprise here being that the bound is not 2M/R <= 1. In this article we provide further generalizations of this bound by placing a number of constraints on the interior geometry (the metric components), on the local acceleration due to gravity, on various combinations of the internal density and pressure profiles, and on the internal compactness 2m(r)/r of static fluid spheres. We do this by adapting the standard tool of comparing the generic fluid sphere with a Schwarzschild interior geometry of the same mass and radius -- in particular we obtain several results for the pressure profile (not merely the central pressure) that are considerably more subtle than might first be expected.
Bounds for scalar waves on self-similar naked-singularity backgrounds
Brien C. Nolan
2006-06-19
The stability of naked singularities in self-similar collapse is probed using scalar waves. It is shown that the multipoles of a minimally coupled massless scalar field propagating on a spherically symmetric self-similar background spacetime admitting a naked singularity maintain finite $L^2$ norm as they impinge on the Cauchy horizon. It is also shown that each multipole obeys a pointwise bound at the horizon, as does its locally observed energy density. $L^2$ and pointwise bounds are also obtained for the multipoles of a minimally coupled massive scalar wave packet.
A Model-Free No-arbitrage Price Bound for Variance Options
Bonnans, J. Frederic, E-mail: frederic.bonnans@inria.fr [Ecole Polytechnique, INRIA-Saclay (France); Tan Xiaolu, E-mail: xiaolu.tan@polytechnique.edu [Ecole Polytechnique, CMAP (France)
2013-08-01
We suggest a numerical approximation for an optimization problem, motivated by its applications in finance to find the model-free no-arbitrage bound of variance options given the marginal distributions of the underlying asset. A first approximation restricts the computation to a bounded domain. Then we propose a gradient projection algorithm together with the finite difference scheme to solve the optimization problem. We prove the general convergence, and derive some convergence rate estimates. Finally, we give some numerical examples to test the efficiency of the algorithm.
Bounds on the outage-constrained capacity region of space-division multiple-access radio systems
Jin, Haipeng; Acampora, A
2004-01-01
Broadcast Channels - Part I: Outage Capacity,” IEEE Trans.Bounds on the Outage-Constrained Capacity Region of Spacethe capacity limit as an outage region rates contained
UPWARD MOBILITY Section 46a-68-45
Oliver, Douglas L.
Health Center (UCHC) is an organizational commitment in compliance with section 4-61t of the CT General as well as personal development. This commitment is a natural extension of the Health Center's mission contracts that do not allow targeted movement from one unit to another. The majority of positions
Activation of 200 MW refusegenerated CHP upward regulation effect (Smart
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand DaltonSolar Energy LLC Jump to: navigation,EnergyAcrux BtGrid Project)
Activation of 200 MW refusegenerated CHP upward regulation effect (Smart
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAand DaltonSolar Energy LLC Jump to: navigation,EnergyAcrux BtGrid
Dancing Volvox: Hydrodynamic Bound States of Swimming Algae Knut Drescher,1
Goldstein, Raymond E.
Dancing Volvox: Hydrodynamic Bound States of Swimming Algae Knut Drescher,1 Kyriacos C. Leptos,1 April 2009) The spherical alga Volvox swims by means of flagella on thousands of surface somatic cells marvels [1]. This was the freshwater alga which, years later, in the very last entry of his great work
Scheduling Algorithms and Bounds for Rateless Data Dissemination in Dense Wireless Networks
Starobinski, David
Scheduling Algorithms and Bounds for Rateless Data Dissemination in Dense Wireless Networks Kan Lin, Germany Email: ska@alum.bu.edu Abstract--Many applications in wireless cellular networks rely dissemination in dense multi-channel wireless cellular networks, using rateless coding transmission. We begin
Improvements on Taylor's Upper Bound for Rigid/Plastic Composites \\Lambda
Olson, Tamara
Improvements on Taylor's Upper Bound for Rigid/Plastic Composites \\Lambda Tamara Olson y Brigham of a mixture composed of anisotropic rigid/plastic materials. It is assumed that the only mechanism for deformation is plastic deformation of individual grains and that the set of stresses causing plastic flow (the
Grigoriev, Dima
Nash resolution for binomial varieties as Euclidean division. Apriori termination bound, polynomial of the normalizations with Nash blowings up, albeit that only for affine binomial varieties of (essential) dimen- sion 2, the equivalence of the Nash algorithm to a com- binatorial algorithm that resembles Euclidean division in dimen
Correlation-length bounds, and estimates for intermittent islands in parabolic SPDEs
Conus, Daniel; Khoshnevisan, Davar
2011-01-01
We consider the nonlinear stochastic heat equation in one dimension. Under some conditions on the nonlinearity, we show that the "peaks" of the solution are rare, almost fractal like. We also provide an upper bound on the length of the "islands," the regions of large values. These results are obtained by analyzing the correlation length of the solution.
Non-Local Effects in a Bounded Afterglow Plasma with Fast Electrons
Kaganovich, Igor
Non-Local Effects in a Bounded Afterglow Plasma with Fast Electrons V. I. Demidov UES, inc. and WVU Electron Temperature and Density in the Afterglow (Post-Discharge) #12;UES Plasma Models · Fluid (continuum-local kinetic models At low pressure, when the plasma scale L is less than electron energy relaxation length
Two definitions of the electric polarizability of a bound system in relativistic quantum theory
F. A. B. Coutinho; Y. Nogami; Lauro Tomio
1998-12-24
For the electric polarizability of a bound system in relativistic quantum theory, there are two definitions that have appeared in the literature. They differ depending on whether or not the vacuum background is included in the system. A recent confusion in this connection is clarified.
A. Frommer; K. Kahl; Th. Lippert; H. Rittich
2012-12-03
The Lanczos process constructs a sequence of orthonormal vectors v_m spanning a nested sequence of Krylov subspaces generated by a hermitian matrix A and some starting vector b. In this paper we show how to cheaply recover a secondary Lanczos process starting at an arbitrary Lanczos vector v_m. This secondary process is then used to efficiently obtain computable error estimates and error bounds for the Lanczos approximations to the action of a rational matrix function on a vector. This includes, as a special case, the Lanczos approximation to the solution of a linear system Ax = b. Our approach uses the relation between the Lanczos process and quadrature as developed by Golub and Meurant. It is different from methods known so far because of its use of the secondary Lanczos process. With our approach, it is now in particular possible to efficiently obtain {\\em upper bounds} for the error in the {\\em 2-norm}, provided a lower bound on the smallest eigenvalue of $A$ is known. This holds in particular for a large class of rational matrix functions including best rational approximations to the inverse square root and the sign function. We compare our approach to other existing error estimates and bounds known from the literature and include results of several numerical experiments.
Proton transfer from the bulk to the bound ubiquinone QB of the reaction center in
Steinhoff, Heinz-Jürgen
Proton transfer from the bulk to the bound ubiquinone QB of the reaction center in chromatophores, 1999) The mechanism of proton transfer from the bulk into the mem- brane protein interior was studied is accompanied by proton trapping. We used kinetic spec- troscopy to measure (i) the electron transfer to QB (at
Upper Bounds on ErrorCorrecting RunlengthLimited Block Codes
Ytrehus, Ă?yvind
. Inf. Th. May 1991, pp. 941--945 Abstract --- Upper bounds are derived on the number of codewordsÂlimited codes, errorÂcorrection. This work was supported by the Norwegian Research Council for Science on the size of (d; k)Â constrained, simpleÂerror correcting block codes. There are two directions in which one
Nearly Tight Bounds on the Encoding Length of the Burrows-Wheeler Transform (Extended Abstract)
Gupta, Ankur; Grossi, Roberto; Vitter, Jeffrey Scott
2008-01-01
stream_size 58925 stream_content_type text/plain stream_name anl08_018guptaa.pdf.txt stream_source_info anl08_018guptaa.pdf.txt Content-Encoding UTF-8 Content-Type text/plain; charset=UTF-8 Nearly Tight Bounds...
H-measures and bounds on the e ective properties of composite materials
Maillot, HervĂ©
H-measures and bounds on the e#11;ective properties of composite materials Gr#19;egoire ALLAIRE- ory in the study of e#11;ective properties of two-phase composite materials. The notion of H of composite materials is to characterize the range of e#11;ective (or macroscopic) properties of such mixtures
Bounded rationality in problem solving: Guiding search with domain-independent heuristics
Langley, Pat
Bounded rationality in problem solving: Guiding search with domain-independent heuristics Pat the remarkable ability to solve complex, multi-step problems despite their limited capacity for search. We review the standard theory of problem solving, which posits that heuristic guidance makes this possible, but we also
Semiclassical and quantum field theoretic bounds for traversable Lorentzian stringy wormholes
Nandi, Kamal Kanti; Zhang Yuanzhong; Kumar, K.B. Vijaya
2004-09-15
A lower bound on the size of a Lorentzian wormhole can be obtained by semiclassically introducing the Planck cutoff on the magnitude of tidal forces (Horowitz-Ross constraint). Also, an upper bound is provided by the quantum field theoretic constraint in the form of the Ford-Roman Quantum Inequality for massless minimally coupled scalar fields. To date, however, exact static solutions belonging to this scalar field theory have not been worked out to verify these bounds. To fill this gap, we examine the wormhole features of two examples from the Einstein frame description of the vacuum low energy string theory in four dimensions which is the same as the minimally coupled scalar field theory. Analyses in this paper support the conclusion of Ford and Roman that wormholes in this theory can have sizes that are indeed only a few order of magnitudes larger than the Planck scale. It is shown that the two types of bounds are also compatible. In the process, we point out a 'wormhole' analog of naked black holes.
Operational Analysis of Timed Petri Nets and Application to the Computation of Performance Bounds
Chiola, Giovanni
networks were al ready proven to hold in stochastic Petri net models. In this paper we derive, under muchOperational Analysis of Timed Petri Nets and Application to the Computation of Performance Bounds G the behaviour of timed Petri nets un der very weak assumptions on their timing semantics. New operational
Numerical solution of eddy current problems in bounded domains using realistic boundary
RodrĂguez, Rodolfo
Numerical solution of eddy current problems in bounded domains using realistic boundary conditions-called eddy currents. The problem is formulated in terms of the magnetic field. This formulation in a metallurgical arc furnace. Key words: low-frequency harmonic Maxwell equations, eddy current problems, finite
Boyer, Edmond
strategies based on anaerobic energy and variations of velocity J. Fr´ed´eric Bonnans Inria-Saclay and CMAP of running strategies hal-01024231,version1-15Jul2014 #12;Keller's model Variable energy recreation Bounding.F. Bonnans, Optimization of running strategies based on anaerobic energy and variations of velocity. SIAM J
Bounding the Higgs width at the LHC: complementary results from H?WW
Campbell, John M.; Ellis, R. Keith; Williams, Ciaran
2014-03-01
We investigate the potential of the process gg ? H? WW to provide bounds on the Higgs width. Recent studies using off-shell H? ZZ events have shown that Run 1 LHC data can constrain the Higgs width, $\\Gamma_H < (25-45) \\Gamma_{H}^{\\rm SM}$. Using 20 fb-1 of 8 TeV ATLAS data, we estimate a bound on the Higgs boson width from the WW channel between $\\Gamma_H < (100-500) \\Gamma_H^{SM}$. The large spread in limits is due to the range of cuts applied in the existing experimental analysis. The stricter cuts designed to search for the on-shell Higgs boson limit the potential number of off-shell events, weakening the constraints. As some of the cuts are lifted the bounds improve. We show that there is potential in the high transverse mass region to produce upper bounds of the order of $(25-50) \\Gamma_H^{SM}$, depending strongly on the level of systematic uncertainty that can be obtained. Thus, if these systematics can be controlled, a constraint on the Higgs boson width from the H ? WW$ decay mode can complement a corresponding limit from H ? ZZ.
Upper and lower Higgs boson mass bounds from a chirally invariant lattice Higgs-Yukawa model
Upper and lower Higgs boson mass bounds from a chirally invariant lattice Higgs-Yukawa model of the Standard Model Higgs boson based on first principle calculations, in par- ticular not relying on additional for the intended Higgs boson mass determination. These are the complex Higgs doublet as well as the top and bottom
The Demand Bound Function Interface of Distributed Sporadic Pipelines of Tasks Scheduled by EDF
Lipari, Giuseppe
The Demand Bound Function Interface of Distributed Sporadic Pipelines of Tasks Scheduled by EDF and analyzing a DRE can be reduced by applying a component-based methodology: each pipeline can be seen different steps: 1) derivation of the temporal interface of a component pipeline; 2) analysis of the whole
Improved Bounds on the Effective Yield Surface of Inhomogeneous Rigid/Plastic Materials
Olson, Tamara
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
Sharp Uniform Bounds for Steady Potential Fluid-Poisson Systems Irene M. Gamba1
, for the potential hydrodynamic{Poisson systems, cavitation speed is a function that depends on the potential ow consider steady potential hydrodynamic-Poisson system with a dissipation term (viscosity) proportional is bounded pointwise, at points x0 in the interior of the ow domain, by cavitation speed (given by Bernoulli
The Ramsey Number R(3, K10 -e) and Computational Bounds for R(3, G)
Radziszowski, Stanislaw P.
The Ramsey Number R(3, K10 - e) and Computational Bounds for R(3, G) Jan Goedgebeur Department that the Ramsey number R(3, K10 - e) is equal to 37, which solves the smallest open case for Ramsey numbers method, we determine two other previously unknown Ramsey numbers, namely R(3, K10 - K3 - e) = 31 and R(3
West, Douglas B.
OnÂline Ramsey Theory for Bounded Degree Graphs Jane Butterfield, Tracy Grauman, William B. Abstract When graph Ramsey theory is viewed as a game, ``Painter'' 2Âcolors the edges of a graph presentedÂline degree Ramsey number Ĺˇ R# (G) is the least k such that Builder wins (G, H) when H is the class of graphs
West, Douglas B.
On-line Ramsey Theory for Bounded Degree Graphs Jane Butterfield, Tracy Grauman, William B When graph Ramsey theory is viewed as a game, "Painter" 2-colors the edges of a graph presented-line degree Ramsey number Â°R(G) is the least k such that Builder wins (G, H) when H is the class of graphs
BIG: A ResourceBounded Information Gathering and Decision Support Agent \\Lambday
Zhang, Xiaoqin
BIG: A ResourceBounded Information Gathering and Decision Support Agent \\Lambday Victor Lesser an invaluable information resource but the explosion of available information has made web search a time of accessibility, reliability and associated costs present a complex information gathering coordination problem
BIG: A Resource-Bounded Information Gathering and Decision Support Agent y
Massachusetts at Amherst, University of
BIG: A Resource-Bounded Information Gathering and Decision Support Agent y Victor Lesser Bryan an invaluable information resource but the explosion of available information has made web search a time of accessibility, reliability and associated costs present a complex information gathering coordination problem
BIG: A Resource-Bounded Information Gathering and Decision Support Agent
Raja, Anita
BIG: A Resource-Bounded Information Gathering and Decision Support Agent ˇ Victor Lesser Bryan an invaluable information resource but the explosion of available information has made web search a time of accessibility, reliability and associated costs present a complex information gathering coordination problem
Handling parameter ranking, equalities and bounds in adaptive control of blending
be formulated in various applications where non- reactive components are blended and linearly impactHandling parameter ranking, equalities and bounds in adaptive control of blending systems Mériam in the production of com- mercial fuels by blending. The control problem under consideration is a multi
Hypersymmetry bounds and three-dimensional higher-spin black holes
Marc Henneaux; Alfredo Perez; David Tempo; Ricardo Troncoso
2015-06-05
We investigate the hypersymmetry bounds on the higher spin black hole parameters that follow from the asymptotic symmetry superalgebra in higher-spin anti-de Sitter gravity in three spacetime dimensions. We consider anti-de Sitter hypergravity for which the analysis is most transparent. This is a $osp(1\\vert 4) \\oplus osp(1\\vert 4)$ Chern-Simons theory which contains, besides a spin-$2$ field, a spin-$4$ field and a spin-$5/2$ field. The asymptotic symmetry superalgebra is then the direct sum of two-copies of the hypersymmetric extension $W_{(2,\\frac52,4)}$ of $W_{(2,4)}$, which contains fermionic generators of conformal weight $5/2$ and bosonic generators of conformal weight $4$ in addition to the Virasoro generators. Following standard methods, we derive bounds on the conserved charges from the anticommutator of the hypersymmetry generators. The hypersymmetry bounds are nonlinear and are saturated by the hypersymmetric black holes, which turn out to possess $1/4$-hypersymmetry and to be "extreme", where extremality can be defined in terms of the entropy: extreme black holes are those that fulfill the extremality bounds beyond which the entropy ceases to be a real function of the black hole parameters. We also extend the analysis to other $sp(4)$-solitonic solutions which are maximally (hyper)symmetric.
Bounds on the kdimension of products of special posets Michael Baym # Douglas B. West +
West, Douglas B.
Bounds on the kdimension of products of special posets Michael Baym # Douglas B. West + Abstract, west@math.uiuc.edu. Research par tially supported by the National Security Agency under Awards H98230dimensional poset. Reuter [15] extended Trotter's result (using ``concept analysis'') to show that dim(Sm ×S n ) = m
Bounds on the k-dimension of products of special posets Michael Baym
West, Douglas B.
Bounds on the k-dimension of products of special posets Michael Baym Douglas B. West Abstract, University of Illinois, Urbana, IL 61801, west@math.uiuc.edu. Research par- tially supported by the National that Sn is the smallest n-dimensional poset. Reuter [15] extended Trotter's result (using "concept
New bounding techniques for channel codes over quasi-static fading channels
Hu, Jingyu
2005-04-01
braceexbraceleftmid braceexbraceexbraceleftbt 1/2 for bit error rate, 1 for frame error rate, (2.6) is commonly used. Then the final form of the bit error rate bound is expressed as: Pb h0)P(h>h0...
0018-9162/01/$10.00 2001 IEEE28 Computer Itsy: Stretching the Bounds
Mann, Tim
,sotheyestablishalower bound on the system's size and weight. For Itsy, we selected a lithium-ion cell just large enough demands on batteries and power management. We built Compaq's Itsy pocket com- puter research prototype no significant role. A small system's battery and display are generally its largestandheaviestcomponents
Bounds on the Solar Antineutrino total Flux and Energy spectrum from the SK experiment
E. Torrente-Lujan
1999-11-23
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{\
Two Branch & Bound Methods for a Generalized Class of Location-Allocation
Gugat, Martin
Two Branch & Bound Methods for a Generalized Class of Location-Allocation Problems Martin Bischoff a generalized class of location-allocation problems, in which N new facilities are to be located in the plane with respect to M objects. We assume each object to be associated with a non-negative convex cost function
Error Bounds from Extra-Precise Iterative JAMES DEMMEL, YOZO HIDA, and WILLIAM KAHAN
Li, Xiaoye Sherry
prevented its adoption in standard subroutine libraries like LAPACK: (1) There was no standard way to access error bound for the computed solution. The completion of the new BLAS Technical Forum Standard has was supported in part by the NSF Cooperative Agreement No. ACI-9619020; NSF Grant Nos. ACI-9813362 and CCF
Bounds on the Nonminimal Coupling of the Higgs Boson to Gravity
Michael Atkins; Xavier Calmet
2013-02-01
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 $2.6\\times 10^{15}$.
Generalized External Interaction with Tamper-Resistant Hardware with Bounded Information Leakage
Reif, Rafael
Generalized External Interaction with Tamper-Resistant Hardware with Bounded Information Leakage of Technology devadas@mit.edu ABSTRACT This paper investigates secure ways to interact with tamper- resistant on top of a recently- proposed secure processor Ascend [11]. Ascend is chosen because unlike other tamper
Mechanism Design for Resource Bounded International Conference on Multi-Agent Systems, ICMAS 2000
Monderer, Dov
Mechanism Design for Resource Bounded Agents International Conference on Multi-Agent Systems, ICMAS of mechanism design deals with the design of proto- cols for non-cooperative multi-agent systems. A major task of this theory is the design of protocols that will maximize the social welfare of the agents. An ideal mechanism
Mechanism Design for Resource Bounded Noa E. KfirDahav Dov Monderer Moshe Tennenholtz
Sandholm, Tuomas W.
Mechanism Design for Resource Bounded Agents Noa E. KfirÂDahav Dov Monderer Moshe Tennenholtz, Israel January 19, 1999 Abstract The theory of mechanism design deals with the design of protoÂ cols properties. Our result enables to extend the central protocol of the theory of mechanism design
The static electric polarizability of a particle bound by a finite potential well
M. A. Maize; M. A. Antonacci
2010-02-23
In this paper we derive an expression for the static electric polarizability of a particle bound by a finite potential well without the explicit use of the continuum states in our calculations. This will be accomplished by employing the elegant Dalgarno-Lewis perturbative technique.
Quantum corrections and bound-state effects in the energy relaxation of hot dense Hydrogen
Dharma-Wardana, M W C
2008-01-01
Simple analytic formulae for energy relaxation (ER) in electron-ion systems, with quantum corrections, ion dynamics and RPA-type screening are presented. ER in the presence of bound electrons is examined in view of of recent simulations for ER in hydrogen in the range 10^{20}-10^{24} electrons/cc.
Quantum corrections and bound-state effects in the energy relaxation of hot dense Hydrogen
M. W. C. Dharma-Wardana
2008-04-13
Simple analytic formulae for energy relaxation (ER) in electron-ion systems, with quantum corrections, ion dynamics and RPA-type screening are presented. ER in the presence of bound electrons is examined in view of of recent simulations for ER in hydrogen in the range 10^{20}-10^{24} electrons/cc.
Acidity and catalytic activity of zeolite catalysts bound with silica and alumina
Wu, Xianchun
2004-09-30
. The acidities of the bound catalysts and the zeolite powder are determined by NH3-TPD and FTIR. The textures of these catalysts are analyzed on a BET machine with nitrogen as a probe molecule. The micropore surface area and micropore volume are determined by t...
A baby steps/giant steps probabilistic algorithm for computing roadmaps in smooth bounded real
Safey El Din, Mohab
A baby steps/giant steps probabilistic algorithm for computing roadmaps in smooth bounded real of constructing roadmaps of real algebraic sets. This problem was introduced by Canny to answer connectivity, with an algorithm of deterministic cost sd+1 DO(n2) for the more general problem of computing roadmaps of a semi
Bounds for the Distance Dependence of Correlation Functions of Entangled Photons in Waveguides
Andrei Khrennikov; Borje Nilsson; Sven Nordebo; Igor Volovich
2011-05-30
The distance dependence of the probability of observing two photons in a waveguide is investigated. The Glauber correlation functions of the entangled photons in waveguides are considered and the spatial and temporal dependence of the correlation functions is evaluated. We derive upper bounds to the distance dependence of the probability of observing two photons. These inequalities should be possible to observe in experiments.
Kavcic, Aleksandar
considered Phasor Measurement Unit (PMU) placement in the power grid [46]. In [4] the problem is formulated- posed for the PMU placement problem. Performance bound for the greedy algorithm is obtained in [3, 5- veloped to sub-optimally solve the PMU placement problem. In [7], the authors present a unified
Information Theoretic Bounds on Authentication Systems in Query Reihaneh Safavi-Naini Peter Wild
International Association for Cryptologic Research (IACR)
Information Theoretic Bounds on Authentication Systems in Query Model Reihaneh Safavi-Naini Peter Wild School of IT and CS Information Security Group University of Wollongong Royal Holloway University Authentication codes provide message integrity guarantees in an information theoretic sense within a symmetric
Information Theoretic Bounds on Authentication Systems in Query Reihaneh SafaviNaini Peter Wild
International Association for Cryptologic Research (IACR)
Information Theoretic Bounds on Authentication Systems in Query Model Reihaneh SafaviNaini Peter Wild School of IT and CS Information Security Group University of Wollongong Royal Holloway University Authentication codes provide message integrity guarantees in an information theoretic sense within a symmetric
sition from a localized solvent-bound ground state to the continuum of the solvent conduc-
Wong, Joyce
sition from a localized solvent-bound ground state to the continuum of the solvent conduc- tion species account for es in the immediate and solvent-separated contact pairs. The ET reaction being of two well-defined configurations, an immediate or solvent-separated contact pair. Both configura- tions
Optimality-based Bound Contraction with Multiparametric Disaggregation for the Global
Grossmann, Ignacio E.
and further reduce the optimality gap. Through the solution of a real-life case study from a hydroelectric1 Optimality-based Bound Contraction with Multiparametric Disaggregation for the Global Optimization of Mixed-Integer Bilinear Problems Pedro M. Castro*,a and Ignacio E. Grossmannb a Laboratório
Detection of Design Flaws in the Android Permission Protocol through Bounded
Jackson, Daniel
Detection of Design Flaws in the Android Permission Protocol through Bounded Verification Hamid of the permission protocol implemented in Android, a popular OS for smartphones. We propose a formal model of the Android permission protocol in Alloy, and describe a fully automatic analysis that identifies potential
A Bound on Binding Energies and Mass Renormalization in Models of Quantum
A Bound on Binding Energies and Mass Renormalization in Models of Quantum Electrodynamics Elliott H: the #12;rst uses the kinetic energy (p + eA(x)) 2 and the second uses the Pauli-Fierz energy (p + eA(x)) 2 + e#27; #1; B(x). The third, no-pair model, is relativistic and replaces the kinetic energy
Tartakovsky, Daniel M.
soils Zhiming Lu and Shlomo P. Neuman Department of Hydrology and Water Resources, University of Arizona 26 April 2002. [1] We consider steady state unsaturated flow in bounded, randomly heterogeneous soils that the solution may remain asymptotic for values of sY 2 as large as 2. INDEX TERMS: 1866 Hydrology: Soil moisture
Nicchitta, Chris
Termination of Protein Synthesis* Received for publication, March 15, 2002, and in revised form, April 18 pathway and dissociation occurring upon the termination of protein synthesis. Recent stud- ies indicate, however, that ribosomal subunits remain membrane-bound following the termination of protein synthesis
Security Bounds for the NIST Codebook-based Deterministic Random Bit Generator
International Association for Cryptologic Research (IACR)
Security Bounds for the NIST Codebook-based Deterministic Random Bit Generator Matthew J. Campagna random bit generators are analyzed in the context of being indistinguishable from random. Upper and lower Introduction Random bit generation is an essential element to almost every cryptographic system. A fundamental
An Additive Branch-and-Bound Algorithm for the Pickup and Delivery Traveling Salesman Problem
Carrabs, Francesco
in the management of automatic guided vehicles that load items on one end and unload them at the other end [Erdogan with LIFO or FIFO Loading Francesco Carrabs and Raffaele Cerulli Dipartimento di Matematica ed Informatica This paper introduces an additive branch-and-bound algorithm for two variants of the pickup and delivery
Folding minimal sequences: the lower bound for sequence complexity of globular proteins
Obradovic, Zoran
Folding minimal sequences: the lower bound for sequence complexity of globular proteins Pedro of sequence complexity, are herein applied to two prior studies on the folding of minimal proteins.9. These values are therefore suggested to be necessary and sufficient for folding into globular proteins having
Coding for Wireless Relay Networks Alphabet Soups and the Network Cutlet Bound
California at San Diego, University of
Coding for Wireless Relay Networks Alphabet Soups and the Network Cutlet Bound Young-Han Kim, 2015 #12;Theorem 1 history of communication = history of wireless #12;Japanese scientists dug 50 meters ago had cellular telephones. #12;Theorem 2 history of wireless = history of relaying #12;#12;#12;#12
Lyapunov Exponents of Brownian Motion: Decay Rates for Scaled Poissonian Potentials and Bounds
Ould Ahmedou, Mohameden
Lyapunov Exponents of Brownian Motion: Decay Rates for Scaled Poissonian Potentials and Bounds Johannes Rueß Universit¨at T¨ubingen Abstract: We investigate Lyapunov exponents of Brownian motion in a nonnegative Poissonian potential V . The Lyapunov exponent depends on the potential V and our interest lies
High energy neutrinos from astrophysical sources: An upper bound Eli Waxman* and John Bahcall +
Bahcall, John
luminous AGN accelerator of highenergy protons. The hypothesized blackhole accelerators are ``neutrinoHigh energy neutrinos from astrophysical sources: An upper bound Eli Waxman* and John BahcallV/cm 2 s sr to the intensity of highenergy neutrinos produced by photomeson ~or pp! interactions
High energy neutrinos from astrophysical sources: An upper bound Eli Waxman* and John Bahcall
Bahcall, John
neutrinos for, or against, the hypothesized luminous AGN accelerator of high-energy protonsHigh energy neutrinos from astrophysical sources: An upper bound Eli Waxman* and John Bahcall to the intensity of high-energy neutrinos produced by photo-meson or p-p interactions in sources of size not much
Merhav, Neri
An Identity of Chernoff Bounds with an Interpretation in Statistical Physics and Applications in statistical physics, namely, an isothermal equilibrium of a composite system that consists of multiple interpretation. This results in several relationships between information theory and statistical physics, which
Tools for model-independent bounds in direct dark matter searches
Cirelli, Marco
2013-10-01
We discuss a framework (based on non-relativistic operators) and a self-contained set of numerical tools to derive the bounds from some current direct detection experiments on virtually any arbitrary model of Dark Matter elastically scattering on nuclei.
Bound Together: Masters and Slaves on the Kansas-Missouri Border, 1825-1865
Epps, Kristen Kimberly
2010-04-20
“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 ...
The Effect of Transverse Energy on Electronic Bound States in Heterostructure Quantum Wells
Mohanty, Saraju P.
that will be the subject of this work, is the precise form of the energy-wave vector (E(k)) relation and its deviation fromThe Effect of Transverse Energy on Electronic Bound States in Heterostructure Quantum Wells Elias Kougianos1 and Saraju P. Mohanty2 1Dept of Engineering Technology, University of North Texas, Denton, TX
The Skorokhod Embedding Problem and Model-Independent Bounds for Option Prices
The Skorokhod Embedding Problem and Model-Independent Bounds for Option Prices David Hobson July 20 for the pricing of financial options is to pos- tulate a model and then to calculate the price of a contingent we can observe traded option prices, but know little or nothing about the model. Hence the question
Jet Interaction and the Influence of a Minimum Phase Speed Bound on the Propagation of Eddies
Vallis, Geoff
Jet Interaction and the Influence of a Minimum Phase Speed Bound on the Propagation of Eddies and analogs of the midlatitude eddy-driven jet and the subtropical jet is investigated in a barotropic b-plane model. In the model the subtropical jet is generated by a relaxation process and the eddy-driven jet
Big Bang Nucleosynthesis with Bound States of Long-lived Charged Particles
Manoj Kaplinghat; Arvind Rajaraman
2007-01-18
Charged particles (X) decaying after primordial nucleosynthesis are constrained by the requirement that their decay products should not change the light element abundances drastically. If the decaying particle is negatively charged (X-) then it will bind to the nuclei. We consider the effects of the decay of X when bound to Helium-4 and show that this will modify the Lithium abundances.
Approximation Methods for Pricing Problems under the Nested Logit Model with Price Bounds
Rusmevichientong, Paat
Approximation Methods for Pricing Problems under the Nested Logit Model with Price Bounds W@orie.cornell.edu September 5, 2013 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
SMT-Based Bounded Model Checking for Embedded ANSI-C Software
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
SMT-Based Bounded Model Checking for Embedded ANSI-C Software Lucas Cordeiro
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
Prediction of sediment-bound nutrient delivery from semi-arid California watersheds
Gabet, Emmanuel "Manny"
Prediction of sediment-bound nutrient delivery from semi-arid California watersheds Emmanuel J, University of California, Santa Barbara, California, USA Received 4 March 2005; revised 16 June 2005 in soil to account explicitly for hillslope sediment transport processes that yield sediment
Mott law as lower bound for a random walk in a random environment
, Germany 2 Institut fË?ur Mathematik, Technische UniversitË?at Berlin, 10623 Berlin, Germany 3 Fachbereich Physik, UniversitË?at DuisburgÂEssen, 45117 Essen, Germany July 21, 2004 Abstract We consider a random. Furthermore the point process is furnished with independent random bounded energy marks. The transition rates
Size-specific opal-bound nitrogen isotope measurements in North Pacific sediments
Gilli, Adrian
Size-specific opal-bound nitrogen isotope measurements in North Pacific sediments Anja S. Studer a composition of diatom opal (d15 Ndb) is a valuable recorder of nitrate utilization in the polar surface oceans the measurement of the biogenic opal fraction up to 150 lm in size, which should represent the bulk
OOH LA LA: TESTING THE ONE-AND-ONE-HALF BOUND DICHOTOMOUS CHOICE ELICITATION
Bateman, Ian J.
efficiency, they do so at the cost of compromised incentive compatibility and have also been shown to be vulnerable to a number of response anomalies. An innovative alternative, the one-and-one-half-bound (OOHB is again exposed to two bid amounts, these are presented prior to any response as upper and lower limits
The Speed Bounds on Event Reporting in Mobile Sensor Networks with Energy Constraints
Wang, Wenye
The Speed Bounds on Event Reporting in Mobile Sensor Networks with Energy Constraints Yi Xu network response delay. However, due to the sensor mobility and the energy limitation, fast report and Wenye Wang Department of Electrical and Computer Engineering North Carolina State University Raleigh, NC
Fast Error-bounded Surfaces and Derivatives Computation for Volumetric Particle Data
Frey, Pascal
Fast Error-bounded Surfaces and Derivatives Computation for Volumetric Particle Data Chandrajit Bajaj Vinay Siddavanahalli December 6, 2005 Abstract Volumetric smooth particle data arise as atomic system. An important computation performed on the volumetric particle system is that of force
Free Will and the Bounds of the Self1 [Forthcoming in Robert Kane, ed. Oxford Handbook
Knobe, Joshua
1 Free Will and the Bounds of the Self1 [Forthcoming in Robert Kane, ed. Oxford Handbook of Free of Arizona If you start taking courses in contemporary cognitive science, you will soon encounter is fundamentally confused or wrongheaded. They think that the confusion here can be cleared up just by saying
Proton radius, bound state QED and the nonlocality of the electromagnetic interaction
Renat Kh. Gainutdinov
2011-03-21
The result of a recent measurement of the size of the proton [R. Pohl et al., Nature 466, 213] performed on the base of the muonic hydrogen spectroscopy turned out to be significantly different, by five standard deviations, from the results derived from the atomic hydrogen spectroscopy. This large discrepancy could come from the calculations of the Lamb shift in atomic hydrogen and muonic hydrogen. Here we show that there is a gap in the standard bound-state QED that may be the source of the discrepancy. This gap originates in the fact that within the framework of this theory the QED corrections are described in terms of the respective Green functions. The character of the time evolution of a system which should manifest itself in the general definition of bound states as stationary states of the system cannot be described in terms of the Green functions. We present a consistent way of solving the bound-state problem in QED starting from the condition of stationarity of the bound states. Formulae for the energies and the vectors of the states of one-electron (muon) atoms derived in this way indicate that the standard bound-state QED does not obey the exact description of the atomic states and, as a result, the Lamb shift obtained in its framework should be supplemented by an additional "dynamical" energy shift. It is shown that in this shift natural nonlocality of the electromagnetic interaction that in describing the S matrix and the Green functions is hidden in the renormalization procedure manifest itself explicitly.
Fiat, Amos
are oppo- sitional. In this paper, we design market makers that satisfy all four. We achieveProfit-Charging Market Makers with Bounded Loss, Vanishing Bid/Ask Spreads, and Unlimited Market desiderata for automated market makers have appeared in the literature: (1) bounded loss, (2) the abil- ity
Journal of Statistical Physics, Vol. 65, Nos. 1/2, 1991 Upper Bound on the Condensate in the
Tóth, Bálint
Journal of Statistical Physics, Vol. 65, Nos. 1/2, 1991 Upper Bound on the Condensate in the Hard by G. Roepstorf, we prove an upper bound for the amount of condensate in a hard-core Bose lattice gas on the amount of condensate for a Bose gas in R d, d/> 3, with arbitrary pair interaction. Exploiting the same
Metal-ion rescue revisited: Biochemical detection of site-bound metal ions important for RNA folding
Das, Rhiju
Metal-ion rescue revisited: Biochemical detection of site-bound metal ions important for RNA-dimensional architectures of RNA molecules, divalent metal ions populate specific locations, shedding their water molecules make essential contributions to function. Defining the locations of these site-bound metal ions remains
The Loosely Bound Proton in 13 N and the Transfer Reaction 11 B (13 N, 12 C) 12 C
Neal, Richard J
1997-01-01
The radioactive nucleus 13 N (t 1/2 = 10 min, J ß = 1/2) contains one loosely bound proton (Sp = 1.94 MeV) which can be considered to be bound to a core of 12 C. Taking advantage of the recent availability of beams of ...
Figueira, J. M.; Arazi, A.; Carnelli, P.; Heimann, D. Martinez; Negri, A. E.; Pacheco, A. J.; Niello, J. O. Fernandez; Capurro, O. A.; Fimiani, L.; Marti, G. V.; Lubian, J.; Monteiro, D. S.; Gomes, P. R. S.
2010-02-15
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.
Entropic uncertainty relations and locking: Tight bounds for mutually unbiased bases
Ballester, Manuel A.; Wehner, Stephanie
2007-02-15
We prove tight entropic uncertainty relations for a large number of mutually unbiased measurements. In particular, we show that a bound derived from the result by Maassen and Uffink [Phys. Rev. Lett. 60, 1103 (1988)] for two such measurements can in fact be tight for up to {radical}(d) measurements in mutually unbiased bases. We then show that using more mutually unbiased bases does not always lead to a better locking effect. We prove that the optimal bound for the accessible information using up to {radical}(d) specific mutually unbiased bases is log d/2, which is the same as can be achieved by using only two bases. Our result indicates that merely using mutually unbiased bases is not sufficient to achieve a strong locking effect and we need to look for additional properties.
Higgs boson mass bounds in the presence of a very heavy fourth quark generation
P. Gerhold; K. Jansen; J. Kallarackal
2010-11-07
We study the effect of a potential fourth quark generation on the upper and lower Higgs boson mass bounds. This investigation is based on the numerical evaluation of a chirally invariant lattice Higgs-Yukawa model emulating the same Higgs-fermion coupling structure as in the Higgs sector of the electroweak Standard Model. In particular, the considered model obeys a Ginsparg-Wilson version of the underlying ${SU}(2)_L\\times {U}(1)_Y$ symmetry, being a global symmetry here due to the neglection of gauge fields in this model. We present our results on the modification of the upper and lower Higgs boson mass bounds induced by the presence of a hypothetical very heavy fourth quark doublet. Finally, we compare these findings to the standard scenario of three fermion generations.
Bound states for multiple Dirac-? wells in space-fractional quantum mechanics
Tare, Jeffrey D. Esguerra, Jose Perico H.
2014-01-15
Using the momentum-space approach, we obtain bound states for multiple Dirac-? wells in the framework of space-fractional quantum mechanics. Introducing first an attractive Dirac-comb potential, i.e., Dirac comb with strength ?g (g > 0), in the space-fractional Schrödinger equation we show that the problem of obtaining eigenenergies of a system with N Dirac-? wells can be reduced to a problem of obtaining the eigenvalues of an N × N matrix. As an illustration we use the present matrix formulation to derive expressions satisfied by the bound-state energies of N = 1, 2, 3 delta wells. We also obtain the corresponding wave functions and express them in terms of Fox's H-function.
On lower bounds for possible blow-up solutions to the periodic Navier-Stokes equation
Cortissoz, Jean C. Montero, Julio A. Pinilla, Carlos E.
2014-03-15
We show a new lower bound on the H{sup .3/2} (T{sup 3}) norm of a possible blow-up solution to the Navier-Stokes equation, and also comment on the extension of this result to the whole space. This estimate can be seen as a natural limiting result for Leray's blow-up estimates in L{sup p}(R{sup 3}), 3 < p < ?. We also show a lower bound on the blow-up rate of a possible blow-up solution of the Navier-Stokes equation in H{sup .5/2} (T{sup 3}), and give the corresponding extension to the case of the whole space.
An Empirical Approach to Bounding the Axial Reactivity Effects of PWR Spent Nuclear Fuel
P. M. O'Leary; J. M. Scaglione
2001-04-04
One of the significant issues yet to be resolved for using burnup credit (BUC) for spent nuclear fuel (SNF) is establishing a set of depletion parameters that produce an adequately conservative representation of the fuel's isotopic inventory. Depletion parameters (such as local power, fuel temperature, moderator temperature, burnable poison rod history, and soluble boron concentration) affect the isotopic inventory of fuel that is depleted in a pressurized water reactor (PWR). However, obtaining the detailed operating histories needed to model all PWR fuel assemblies to which BUC would be applied is an onerous and costly task. Simplifications therefore have been suggested that could lead to using ''bounding'' depletion parameters that could be broadly applied to different fuel assemblies. This paper presents a method for determining a set of bounding depletion parameters for use in criticality analyses for SNF.
Effects of a potential fourth fermion generation on the upper and lower Higgs boson mass bounds
Philipp Gerhold; Karl Jansen; Jim Kallarackal
2010-10-28
We study the effect of a potential fourth fermion generation on the upper and lower Higgs boson mass bounds. This investigation is based on the numerical evaluation of a chirally invariant lattice Higgs-Yukawa model emulating the same Higgs-fermion coupling structure as in the Higgs sector of the electroweak Standard Model. In particular, the considered model obeys a Ginsparg-Wilson version of the underlying ${SU}(2)_L\\times {U}(1)_Y$ symmetry, being a global symmetry here due to the neglection of gauge fields in this model. We present our results on the modification of the upper and lower Higgs boson mass bounds induced by the presence of a hypothetical very heavy fourth quark doublet. Finally, we compare these findings to the standard scenario of three fermion generations.
Effects of a potential fourth fermion generation on the Higgs boson mass bounds
P. Gerhold; K. Jansen; J. Kallarackal
2010-10-29
We study the effect of a potential fourth fermion generation on the upper and lower Higgs boson mass bounds. This investigation is based on the numerical evaluation of a chirally invariant lattice Higgs-Yukawa model emulating the same Higgs-fermion coupling structure as in the Higgs sector of the electroweak Standard Model. In particular, the considered model obeys a Ginsparg-Wilson version of the underlying $SU(2)_L\\times U(1)_Y$ symmetry, being a global symmetry here due to the neglection of gauge fields in this model. We present our results on the modification of the upper and lower Higgs boson mass bounds induced by the presence of a hypothetical very heavy fourth quark doublet. Finally, we compare these findings to the standard scenario of three fermion generations.
Crystal structure of a p53 core tetramer bound to DNA
Malecka, K.A.; Ho, W.C.; Marmorstein, R.; (Penn)
2009-09-02
The tumor suppressor p53 regulates downstream genes in response to many cellular stresses and is frequently mutated in human cancers. Here, we report the use of a crosslinking strategy to trap a tetrameric p53 DNA-binding domain (p53DBD) bound to DNA and the X-ray crystal structure of the protein/DNA complex. The structure reveals that two p53DBD dimers bind to B form DNA with no relative twist and that a p53 tetramer can bind to DNA without introducing significant DNA bending. The numerous dimer-dimer interactions involve several strictly conserved residues, thus suggesting a molecular basis for p53DBD-DNA binding cooperativity. Surface residue conservation of the p53DBD tetramer bound to DNA highlights possible regions of other p53 domain or p53 cofactor interactions.
The Road From Classical to Quantum Codes: A Hashing Bound Approaching Design Procedure
Zunaira Babar; Panagiotis Botsinis; Dimitrios Alanis; Soon Xin Ng; Lajos Hanzo
2015-03-09
Powerful Quantum Error Correction Codes (QECCs) are required for stabilizing and protecting fragile qubits against the undesirable effects of quantum decoherence. Similar to classical codes, hashing bound approaching QECCs may be designed by exploiting a concatenated code structure, which invokes iterative decoding. Therefore, in this paper we provide an extensive step-by-step tutorial for designing EXtrinsic Information Transfer (EXIT) chart aided concatenated quantum codes based on the underlying quantum-to-classical isomorphism. These design lessons are then exemplified in the context of our proposed Quantum Irregular Convolutional Code (QIRCC), which constitutes the outer component of a concatenated quantum code. The proposed QIRCC can be dynamically adapted to match any given inner code using EXIT charts, hence achieving a performance close to the hashing bound. It is demonstrated that our QIRCC-based optimized design is capable of operating within 0.4 dB of the noise limit.
Fast multiscale Gaussian beam methods for wave equations in bounded convex domains
Bao, Gang; Department of Mathematics, Michigan State University, East Lansing, MI 48824 ; Lai, Jun; Qian, Jianliang
2014-03-15
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.
Propagation of surface waves on a semi-bounded quantum magnetized collisional plasma
Niknam, A. R.; Taheri Boroujeni, S.; Khorashadizadeh, S. M.
2013-12-15
The propagation of surface waves on a semi-bounded quantum plasma in the presence of the external magnetic field and collisional effects is investigated by using quantum magnetohydrodynamics model. A general analytical expression for the dispersion relation of surface waves is obtained by considering the boundary conditions. It is shown that, in some special cases, the obtained dispersion relation reduces to the results reported in previous works. It is also indicated that the quantum, external magnetic field and collisional effects can facilitate the propagation of surface waves on a semi-bounded plasma. In addition, it is found that the growth rate of the surface wave instability is enhanced by increasing the collision frequency and plasmonic parameter.
SMT-Based Bounded Model Checking for Embedded ANSI-C Software
Cordeiro, Lucas; Marques-Silva, Joao
2009-01-01
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...
Entanglement detection and lower bound of convex-roof extension of negativity
Li, Ming; Fei, Shao-Ming; 10.1088/1751-8113/45/3/035301
2012-01-01
We present a set of inequalities based on mean values of quantum mechanical observables nonlinear entanglement witnesses for bipartite quantum systems. These inequalities give rise to sufficient and necessary conditions for separability of all bipartite pure states and even some mixed states. In terms of these mean values of quantum mechanical observables a measurable lower bound of the convex-roof extension of the negativity is derived.
Entanglement detection and lower bound of convex-roof extension of negativity
Ming Li; Tong-Jiang Yan; Shao-Ming Fei
2011-12-30
We present a set of inequalities based on mean values of quantum mechanical observables nonlinear entanglement witnesses for bipartite quantum systems. These inequalities give rise to sufficient and necessary conditions for separability of all bipartite pure states and even some mixed states. In terms of these mean values of quantum mechanical observables a measurable lower bound of the convex-roof extension of the negativity is derived.
Towards a model of large scale dynamics in transitional wall-bounded flows
Manneville, Paul
2015-01-01
A system of simplified equations is proposed to govern the feedback interactions of large-scale flows present in laminar-turbulent patterns of transitional wall-bounded flows, with small-scale Reynolds stresses generated by the self-sustainment process of turbulence itself modeled using an extension of Waleffe's approach (Phys. Fluids 9 (1997) 883-900), the detailed expression of which is displayed as an annex to the main text.
Energy-time uncertainty principle and lower bounds on sojourn time
Joachim Asch; Olivier Bourget; Victor Cortes; Claudio Fernandez
2015-07-23
One manifestation of quantum resonances is a large sojourn time, or autocorrelation, of states which are initially localized. We elaborate on Lavine's time-energy uncertainty principle and give an estimate on the sojourn time. The bound involves Fermi's Golden Rule for the case of perturbed embedded eigenstates. Only very mild regularity is required. We illustrate the theory by applications to resonances for time dependent- and multistate systems .
Amplitudes of radiative corrections in fermion bags bound by Higgs boson exchange
M. Yu. Kuchiev
2010-12-04
Properties of amplitudes that describe radiative corrections in a bag of heavy fermions bound by the Higgs boson exchange are studied. Classes of amplitudes, in which the large fermion mass is canceled out and hence produces no enhancement for the radiative corrections are found. For fermions with masses in the region 4001000 Gev, the processes described by diagrams with closed fermion loops are also mass-independent.