National Library of Energy BETA

Sample records for gain root privileges

  1. U-092: Sudo Format String Bug Lets Local Users Gain Elevated Privileges

    Broader source: Energy.gov [DOE]

    A local user can supply a specially crafted command line argument to trigger a format string flaw and execute arbitrary commands on the target system with root privileges.

  2. T-608: HP Virtual Server Environment Lets Remote Authenticated Users Gain Elevated Privileges

    Broader source: Energy.gov [DOE]

    A potential security vulnerability has been identified in HP Virtual Server Environment for Windows. The vulnerability could be exploited remotely to elevate privileges.

  3. T-591: VMware vmrun Utility Lets Local Users Gain Elevated Privileges...

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

    privileges of the user running vmrun by causing the utility to load a malicious shared library. Impact: The following versions are affected: VMware VIX API for Linux 1.10.2 and...

  4. T-567: Linux Kernel Buffer Overflow in ldm_frag_add() May Let Local Users Gain Elevated Privileges

    Broader source: Energy.gov [DOE]

    A vulnerability was reported in the Linux Kernel. A local user may be able to obtain elevated privileges on the target system. A physically local user can connect a storage device with a specially crafted LDM partition table to trigger a buffer overflow in the ldm_frag_add() function in 'fs/partitions/ldm.c' and potentially execute arbitrary code with elevated privileges.

  5. V-199: Solaris Bugs Let Local Users Gain Root Privileges, Remote...

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

    recommends applying July Critical Patch Update Addthis Related Articles V-181: Oracle Java SE Critical Patch Update Advisory - June 2013 V-051: Oracle Solaris Java Multiple...

  6. V-199: Solaris Bugs Let Local Users Gain Root Privileges, Remote and Local

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

    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 Natural GasAdjustmentsShirleyEnergyThe U.S.Lacledeutilities. The Economics ofConductMultipleAccount PasswordFlaw

  7. U-264: Apple OS X Lets Remote Users Execute Arbitrary Code and Local Users Gain Elevated Privileges

    Broader source: Energy.gov [DOE]

    Several vulnerabilities were reported in Apple OS X. A remote user can execute arbitrary code on the target system. A remote user can obtain a password hash in certain cases. A local user can obtain elevated privileges on the target system. A local user can obtain password keystrokes.

  8. U-193: NetBSD System Call Return Value Validation Flaw Lets Local Users Gain Elevated Privileges

    Broader source: Energy.gov [DOE]

    On Intel CPUs, the sysret instruction can be manipulated into returning to specific non-canonical addresses, which may yield a CPU reset. We cannot currently rule out with utter confidence that this vulnerability could not also be used to execute code with kernel privilege instead of crashing the system.

  9. T-563: Red Hat Directory Server Bugs Let Local Users Gain Elevated...

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

    T-671: Red Hat system-config-firewall Lets Local Users Gain Root Privileges V-041: Red Hat CloudForms Multiple Vulnerabilities U-198: IBM Lotus Expeditor Multiple Vulnerabilities...

  10. U-086:Linux Kernel "/proc//mem" Privilege Escalation Vulnerability

    Broader source: Energy.gov [DOE]

    A vulnerability has been discovered in the Linux Kernel, which can be exploited by malicious, local users to gain escalated privileges.

  11. Lease of Power Privilege Flowchart: Lease of Power Privilege...

    Open Energy Info (EERE)

    Lease of Power Privilege Flowchart: Lease of Power Privilege Contract through End of Construction Jump to: navigation, search OpenEI Reference LibraryAdd to library Permitting...

  12. PRIVILEGED AND CONFIDENTIAL ATTORNEY-CLIENT COMMUNICATION

    E-Print Network [OSTI]

    PRIVILEGED AND CONFIDENTIAL ATTORNEY-CLIENT COMMUNICATION LEGAL SERVICES REQUEST FORM Date-2109 This request is a confidential communication and should be treated as such. Indicate "Confidential

  13. U-112: PostgreSQL Bugs Let Remote Authenticated Users Gain Elevated...

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

    2: PostgreSQL Bugs Let Remote Authenticated Users Gain Elevated Privileges, Inject SQL Commands, and Spoof Certificates U-112: PostgreSQL Bugs Let Remote Authenticated Users Gain...

  14. PRIVILEGED AND CONFIDENTIAL ATTORNEY-CLIENT COMMUNICATION

    E-Print Network [OSTI]

    9/29/09 PRIVILEGED AND CONFIDENTIAL ATTORNEY-CLIENT COMMUNICATION LEGAL SERVICES REQUEST FORM`i 96822 Facsimile No.: (808) 956-2109 This request is a confidential communication and should be treated

  15. Lease of Power Privilege Flowchart: Award of Preliminary Lease...

    Open Energy Info (EERE)

    Lease of Power Privilege Flowchart: Award of Preliminary Lease through Award of Lease of Power Privilege Jump to: navigation, search OpenEI Reference LibraryAdd to library...

  16. Diesel: Applying Privilege Separation to Database Adrienne Porter Felt

    E-Print Network [OSTI]

    Wagner, David

    Diesel: Applying Privilege Separation to Database Access Adrienne Porter Felt Matthew Finifter Joel to lists, requires prior specific permission. #12;Diesel: Applying Privilege Separation to Database Access and code reviewers. We design and construct a system called Diesel, which implements data separation

  17. Permit Types, Tiers, and Parking Privileges 2014-2015 Permit Type/Neighborhood Permit Tier Parking Privileges

    E-Print Network [OSTI]

    Chen, Tsuhan

    Privileges A (North Campus A Lot) Outer A lot on North Campus AP (Accessible Campus-wide Parking) ValidPermit Types, Tiers, and Parking Privileges 2014-2015 Permit Type/Neighborhood Permit Tier Parking in all permit-restricted parking spaces except reserved. Not valid in MT spaces. Must comply with posted

  18. T-591: VMware vmrun Utility Lets Local Users Gain Elevated Privileges |

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCED MANUFACTURINGEnergyPlan | Department ofSUPPLEMENTSwitzerland| Department of Energy

  19. V-115: Apple iOS Bugs Let Local Users Gain Elevated Privileges | Department

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematics And Statistics » USAJobs Search USAJobs SearchWater-Savingof Energy 5: Apple iOS Bugs Let

  20. Diesel: Applying Privilege Separation to Database Access Adrienne Porter Felt

    E-Print Network [OSTI]

    Wagner, David

    Diesel: Applying Privilege Separation to Database Access Adrienne Porter Felt UC Berkeley apf reviewers. We construct a system called Diesel, which implements data sep- aration by intercepting database queries and applying mod- ules' restrictions to the queries. We evaluate Diesel on three widely

  1. Alumni Library Privileges Contract Paul V. Galvin Library

    E-Print Network [OSTI]

    Heller, Barbara

    Alumni Library Privileges Contract Paul V. Galvin Library Illinois Institute of Technology 35 W. 33 of Technology code of conduct, the Acceptable Use Policy for Computing Resources, and the circulation policies fines or replacement costs incurred. Violation of these policies and/or procedures could result

  2. SW GAINES RD USVETERANSHOSPITALRD

    E-Print Network [OSTI]

    Chapman, Michael S.

    SW 6TH AVE SW GAINES RD SW USVETERANSHOSPITALRD SW GAINES RD SW 11TH AVE SW USVETERANS HOSPITAL RD SWCAMPUSDR. SWCAMPUSDR. SWSAMJACKSONPARKRD. SW SAM JACKSON PARK RD. SW SAM JACKSON PARKRD. SWTERWILLIGERBLVD SW TERWILLIGER BLVDSW TERWILLIGER BLVD RV PARKING P96 P95 P94 P93 P92 P91 P83 P9 P8 P6 P5 P4 P3 P2 P

  3. Pressure-gain combustion

    SciTech Connect (OSTI)

    Richards, G.A.; Yip, J.; Gemmen, R.S.; Janus, M.C.; Norton, T. [USDOE Morgantown Energy Technology Center, WV (United States); Rogers, W.A. [EG and G Washington Analytical Services Center, Inc., Morgantown, WV (United States)

    1993-11-01

    Pulse combustion has been proposed for gas turbine applications in many early articles and more recently has been demonstrated to produce so-called ``pressure-gain`` in a small gas turbine. The basic concept is that the oscillatory combustion occurs as a constant-volume process, producing a gain in the stagnation pressure of air flowing through the combustor, rather than the pressure loss associated with conventional, steady combustion. If properly utilized, this pressure-gain could enhance simple-cycle gas turbine efficiency several percent, depending on the operating conditions. In addition, pulse combustors have demonstrated relatively low NO{sub x} pollutant levels in some applications. The combined potential for higher cycle efficiency and lower pollutant levels is the basis for the present investigation. Tests in progress at the Morgantown Energy Technology Center (METC) have considered a baseline pulse combustor configuration that has shown good oscillating performance, low NO{sub x} emissions, but disappointing results in terms of pressure-gain. However, a combination of numeric simulations and test data suggest that pressure-gain can be produced by a select combination of operating conditions and combustor geometry, but is especially sensitive to the combustor inlet geometry. Tests in progress will evaluate the effect of inlet geometry and operating pressure on both pollutant emissions and pressure-gain.

  4. U-230: Sudo on Red Hat Enterprise Linux %postun Symlink Flaw Lets Local Users Gain Elevated Privileges

    Broader source: Energy.gov [DOE]

    An updated sudo package that fixes one security issue and several bugs is now available for Red Hat Enterprise Linux 5.

  5. RBAC Driven Least Privilege Architecture For Control Systems

    SciTech Connect (OSTI)

    Hull, Julie; Markham, Mark

    2014-01-25

    The concept of role based access control (RBAC) within the IT environment has been studied by researchers and was supported by NIST (circa 1992). This earlier work highlighted the benefits of RBAC which include reduced administrative workload and policies which are easier to analyze and apply. The goals of this research were to expand the application of RBAC in the following ways. • Apply RBAC to the control systems environment: The typical RBAC model within the IT environment is used to control a user’s access to files. Within the control system environment files are replaced with measurement (e.g., temperature) and control (e.g. valve) points organized as a hierarchy of control assets (e.g. a boiler, compressor, refinery unit). Control points have parameters (e.g., high alarm limit, set point, etc.) associated with them. The RBAC model is extended to support access to points and their parameters based upon roles while at the same time allowing permissions for the points to be defined at the asset level or point level directly. In addition, centralized policy administration with distributed access enforcement mechanisms was developed to support the distributed architecture of distributed control systems and SCADA. • Extend the RBAC model to include access control for software and devices: The established RBAC approach is to assign users to roles. This work extends that notion by first breaking the control system down into three layers 1) users, 2) software and 3) devices. An RBAC model is then created for each of these three layers. The result is that RBAC can be used to define machine-to-machine policy enforced via the IP security (IPsec) protocol. This highlights the potential to use RBAC for machine-to-machine connectivity within the internet of things. • Enable dynamic policy based upon the operating mode of the system: The IT environment is generally static with respect to policy. However, large cyber physical systems such as industrial controls have various operating modes (start-up, normal operation, emergency, shut-down and maintenance are typical). The policy enforcement architecture must be able to support changes in access permissions as the mode of the control system changes. For example an operator’s role may not allow the operator to shut down a pump during “normal operation” but that same operator role may be given permission to shut down the pump if the refinery transitions to “emergency” mode. The effectiveness of the approach was validated by applying it to the Experion Process Knowledge System. This is a large commercial industrial control system often used to control oil refineries and other assets within the oil and gas sector. As a by-product, other industries using Experion (Pharmaceuticals, Specialty Chemicals, etc.) also benefit from increased security. Policies representative of those that would be used within an oil refinery were created and validated against the RBAC model as implemented in the underlying SQL database. The administration of policy is simplified which in turn makes it practical for security administrators to specify policies which enforce least privilege. The result is a qualitative reduction in risk. The benefits of the enhanced RBAC model are clear and as a result. Honeywell is incorporating portions of the RBAC research into the 2014 release of Experion.

  6. AdDroid: Privilege Separation for Applications and Advertisers in Android

    E-Print Network [OSTI]

    Wagner, David

    AdDroid: Privilege Separation for Applications and Advertisers in Android Paul Pearce, Adrienne University of California Berkeley daw@cs.berkeley.edu ABSTRACT Advertising is a critical part of the Android a study of the Android Market and found that 49% of Android applica- tions contain at least one

  7. Engineering Metal Complexes of Chiral Pentaazacrowns as Privileged Reverse-turn

    E-Print Network [OSTI]

    Marshall, Garland R.

    Engineering Metal Complexes of Chiral Pentaazacrowns as Privileged Reverse-turn Scaffolds Ye Che1 the potential of metal complexes of chiral pentaazacrowns con- ceptually derived by reduction of cyclic pentapep- tides as reverse-turn mimetics. The possible conformations of metal complexes of chiral penta- azacrown

  8. Resources and Privileges 1 1/2015 ROCHESTER INSTITUTE OF TECHNOLOGY

    E-Print Network [OSTI]

    Salvaggio, Carl

    .............................................................................................................................................5 #12;Resources and Privileges 2 1/2015 RIT reserves the right to modify or terminate all or any including court supervision, termination of natural, parental rights, final adoption procedures and birth mother, including pre and postnatal care, obstetrical fees and related hospital charges. Full or partial

  9. Insight Gained from Simplified Dynamic Analysis

    Broader source: Energy.gov [DOE]

    Insight Gained from Simplified Dynamic Analysis ... or Everything Old is New Again October 21, 2014 Greg Mertz Consultant

  10. Root cause outline

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-Throughput Analysis of Protein Structures PrintRooftop DiagnosticianRoomWPSS Root

  11. APPLICATION FOR In-state tuition rates are a privilege authorized by the Connecticut General Statutes and are

    E-Print Network [OSTI]

    Alpay, S. Pamir

    APPLICATION FOR In-state tuition rates are a privilege authorized by the Connecticut General is eligible for in-state tuition emancipated student who is domiciled in Connecticut; (2) as an unemancipated student whose parents are domiciled in Connecticut; (3) as a Connecticut resident who attended four years

  12. U-056: Linux Kernel HFS Buffer Overflow Lets Local Users Gain Root

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankADVANCEDInstallers/ContractorsPhotovoltaicsStateof Energy TwoEvent at the Pu2:Servers

  13. Plant Root Characteristics and Dynamics in Arctic Tundra Ecosystems...

    Office of Scientific and Technical Information (OSTI)

    Language: English Subject: 54 Environmental Sciences arctic; tundra; fine roots; root biomass; root production; root turnover; plant-soil, model Word Cloud More Like This Dataset...

  14. Optimal Portfolio Management with Transactions Costs and Capital Gains Taxes

    E-Print Network [OSTI]

    Leland, Hayne E.

    1999-01-01

    with Transactions Costs and Capital Gains Taxes Hayne E.of Transactions Costs and Capital gains Taxes," SeptemberWITH TRANSACTIONS COSTS AND CAPITAL GAINS TAXES I.

  15. GaInNAs laser gain

    SciTech Connect (OSTI)

    CHOW,WENG W.; JONES,ERIC D.; MODINE,NORMAND A.; KURTZ,STEVEN R.; ALLERMAN,ANDREW A.

    2000-05-23

    The optical gain spectra for GaInNAs/GaAs quantum wells are computed using a microscopic laser theory. From these spectra, the peak gain and carrier radiative decay rate as functions of carrier density are determined. These dependences allow the study of the lasing threshold current density of GaInNAs/GaAs quantum well structures.

  16. Automatic Incremental Routing Using Multiple Roots

    E-Print Network [OSTI]

    Ghosh, Rumi; Garcia-Luna-Aceves, J.J.

    2013-01-01

    J. J. Garcia-Luna-Aceves, “Automatic Routing Using MultipleAutomatic Incremental Routing Using Multiple Roots RumiWe present Multi-root Automatic Incremental Rout- ing (

  17. Gaines County Solid Waste Management Act (Texas)

    Broader source: Energy.gov [DOE]

    This Act establishes the Gaines County Solid Waste Management District, a governmental body to develop and carry out a regional water quality protection program through solid waste management and...

  18. Roots, States, and Stative Passives David Embick

    E-Print Network [OSTI]

    Embick, David

    with Stative Passive formation; and (ii) whether building Target State meanings into (certain) RootsRoots, States, and Stative Passives David Embick University of Pennsylvania ***** Roots Workshop be part of a Root's meaning, by BT:R PLAN: Reexamine/reanalyze the generalizations that building Target

  19. Gain narrowing in few-atom systems

    E-Print Network [OSTI]

    Tom Savels; Allard P. Mosk; Ad Lagendijk

    2006-05-31

    Using a density matrix approach, we study the simplest systems that display both gain and feedback: clusters of 2 to 5 atoms, one of which is pumped. The other atoms supply feedback through multiple scattering of light. We show that, if the atoms are in each other's near-field, the system exhibits large gain narrowing and spectral mode redistribution. The observed phenomena are more pronounced if the feedback is enhanced. Our system is to our knowledge the simplest exactly solvable microscopic system which shows the approach to laser oscillation.

  20. Superradiance and collective gain in multimode optomechanics

    E-Print Network [OSTI]

    T. Kipf; G. S. Agarwal

    2014-10-21

    We present a description of a strongly driven multimode optomechanical system that shows the emergence of cooperative effects usually known from systems of atom-light interaction. Our calculations show that under application of a coherent pump field the system's response can be switched from a superradiant regime to a collective gain regime by varying the frequency detuning of the pump. In the superradiant regime, enhanced optical cooling of a single vibrational mode is possible, whereas the collective gain regime would potentially enable one to achieve almost thresholdless phonon laser action. The threshold pumping power scales as 1/N.

  1. RHP: HOW CLIMATE MODELS GAIN AND EXERCISE How Climate Models Gain and Exercise Authority

    E-Print Network [OSTI]

    Hulme, Mike

    49 LHP: HULME RHP: HOW CLIMATE MODELS GAIN AND EXERCISE AUTHORITY 2 How Climate Models Gain and Exercise Authority Mike Hulme Introduction Numerical climate models have become central to the unfolding story of climate change. Climate models underpin the knowledge claims and risk assessments

  2. Enhancing optical gains in Si nanocrystals via hydrogenation...

    Office of Scientific and Technical Information (OSTI)

    technique was used to obtain gains. At 0.3 Wcmsup 2 pumping power density of pulsed laser, net gains were observed together with gain enhancements after hydrogenation andor...

  3. Fast Light in Fully Coherent Gain Media

    E-Print Network [OSTI]

    B. D. Clader; Q-Han Park; J. H. Eberly

    2006-06-15

    We analyze the propagation of fast-light pulses through a finite-length resonant gain medium both analytically and numerically. We find that intrinsic instabilities can be avoided in attaining a substantial peak advance with an ultra-short rather than a long or adiabatic probe.

  4. Laser gain media based on nanocomposite materials

    E-Print Network [OSTI]

    Boyd, Robert W.

    19, 2007 A new way of controlling the laser properties of optical materials by designing compositeLaser gain media based on nanocomposite materials Ksenia Dolgaleva* and Robert W. Boyd The Institute of Optics, University of Rochester, Rochester, New York 14627, USA *Corresponding author: ksenia

  5. Pressure Gain Combustion Rotating Detonation Engines (RDE)

    E-Print Network [OSTI]

    Pressure Gain Combustion Rotating Detonation Engines (RDE) Dr. Chris Brophy, David Dausen, Lee Van Houtte Students LT Culwell, ENS Khol, Robert Wright, Andrew Chaves Rocket Propulsion & Combustion Lab-based combustion to extract increase thermodynamic cycle efficiency for work/thrust apps. · Higher Enthalpy

  6. PV ENERGY ROI Tracks Efficiency Gains

    E-Print Network [OSTI]

    PV ENERGY ROI Tracks Efficiency Gains the state of PV today E nergy payback time (EPBT) is the time it takes for a photovoltaic (PV) system to produce all the energy used through- out its life cycle. A short, current com- mercial PV technologies "pay back" the energy used in only six months to two years (depending

  7. Beef Cattle Performance II. Selection Based on Gaining Ability. 

    E-Print Network [OSTI]

    Hill, H. O.; Warwick, Bruce L.; Cartwright, T. C.

    1955-01-01

    of young cattle to grow and gain weight form one of the most important advances made in recent years. Gaining ability as a basis for selection is of major importance for efficient beef cattle' production. Selection for characteristics... sire's gaining ability record. On the average, high gaining sires pro- duce high gaining offspring. This is just an example, but it illustrates the findings of sta- tistical analyses. Beef Cattle Performance 12: Selection Based on Gaining Ability I...

  8. Root and Root Collar Disease of Eucalyptus grandis Caused by Pythium splendens

    E-Print Network [OSTI]

    Root and Root Collar Disease of Eucalyptus grandis Caused by Pythium splendens 125 C. LINDE, M. J. H. J. 1994. Root and root collar disease of Eucalyptus gramlis caused by Pythium spJendens. Plant trees. P. splendens inoculated on two different clones of E. grandis and on Eucalyptus fastigata

  9. Open quantum systems with loss and gain

    E-Print Network [OSTI]

    Hichem Eleuch; Ingrid Rotter

    2015-04-13

    We consider different properties of small open quantum systems coupled to an environment and described by a non-Hermitian Hamilton operator. Of special interest is the non-analytical behavior of the eigenvalues in the vicinity of singular points, the so-called exceptional points (EPs), at which the eigenvalues of two states coalesce and the corresponding eigenfunctions are linearly dependent from one another. The phases of the eigenfunctions are not rigid in approaching an EP and providing therewith the possibility to put information from the environment into the system. All characteristic properties of non-Hermitian quantum systems hold true not only for natural open quantum systems that suffer loss due to their embedding into the continuum of scattering wavefunctions. They appear also in systems coupled to different layers some of which provide gain to the system. Thereby gain and loss, respectively, may be fixed inside every layer, i.e. characteristic of it.

  10. ROOT

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantity ofkandz-cm11 Outreach Home RoomPreservation of Fe(II) by Carbon-RichProton Delivery andInnovations INFORMATIONRichlandRMSSEC

  11. Compensated gain control circuit for buck regulator command charge circuit

    DOE Patents [OSTI]

    Barrett, David M. (Albuquerque, NM)

    1996-01-01

    A buck regulator command charge circuit includes a compensated-gain control signal for compensating for changes in the component values in order to achieve optimal voltage regulation. The compensated-gain control circuit includes an automatic-gain control circuit for generating a variable-gain control signal. The automatic-gain control circuit is formed of a precision rectifier circuit, a filter network, an error amplifier, and an integrator circuit.

  12. Compensated gain control circuit for buck regulator command charge circuit

    DOE Patents [OSTI]

    Barrett, D.M.

    1996-11-05

    A buck regulator command charge circuit includes a compensated-gain control signal for compensating for changes in the component values in order to achieve optimal voltage regulation. The compensated-gain control circuit includes an automatic-gain control circuit for generating a variable-gain control signal. The automatic-gain control circuit is formed of a precision rectifier circuit, a filter network, an error amplifier, and an integrator circuit. 5 figs.

  13. USENIX Association 10th USENIX Symposium on Operating Systems Design and Implementation (OSDI '12) 335 Dune: Safe User-level Access to Privileged CPU Features

    E-Print Network [OSTI]

    Chase, Jeffrey S.

    ) 335 Dune: Safe User-level Access to Privileged CPU Features Adam Belay, Andrea Bittau, Ali Mashtizadeh, David Terei, David Mazi`eres, Christos Kozyrakis Stanford University Abstract Dune is a system, and tagged TLBs, while preserving the exist- ing OS interfaces for processes. Dune uses the virtualiza- tion

  14. Dune: Safe User-level Access to Privileged CPU Features Adam Belay, Andrea Bittau, Ali Mashtizadeh, David Terei, David Mazi`eres, Christos Kozyrakis

    E-Print Network [OSTI]

    Kozyrakis, Christos

    Dune: Safe User-level Access to Privileged CPU Features Adam Belay, Andrea Bittau, Ali Mashtizadeh, David Terei, David Mazi`eres, Christos Kozyrakis Stanford University Abstract Dune is a system, and tagged TLBs, while preserving the exist- ing OS interfaces for processes. Dune uses the virtualiza- tion

  15. Gain the most business value from implementing IBM Optim

    E-Print Network [OSTI]

    Services professionals Gain comprehensive project planning and execution, product education and on guide your decommissioning project. Optim makes decommissioning easier and safer by providing professionals for rapid implementation and reliable support. IBM Software Lab Services can help you gain

  16. Chemical root pruning and its effects on water relations and root morphology of photinia 

    E-Print Network [OSTI]

    Vartak, Diptish Ramesh

    1993-01-01

    ). Kirchhof (1992) used a hand-held computer scanner for measurement of root length. Growth of roots can be non-destructively monitored using the root periscope/mini-rhizot- ron technique (Karl and Doescher, 1991). A common method of estimating the length...

  17. 9 GeV Energy Gain in a Beam-Driven Plasma Wakefield Accelerator

    E-Print Network [OSTI]

    Litos, M; Allen, J M; An, W; Clarke, C I; Corde, S; Clayton, C E; Frederico, J; Gessner, S J; Green, S Z; Hogan, M J; Joshi, C; Lu, W; Marsh, K A; Mori, W B; Schmeltz, M; Vafaei-Najafabadi, N; Yakimenko, V

    2015-01-01

    An electron beam has gained a maximum energy of 9 GeV per particle in a 1.3 m-long electron beam-driven plasma wakefield accelerator. The amount of charge accelerated in the spectral peak was 28.3 pC, and the root-mean-square energy spread was 5.0%. The mean accelerated charge and energy gain per particle of the 215 shot data set was 115 pC and 5.3 GeV, respectively, corresponding to an acceleration gradient of 4.0 GeV/m at the spectral peak. The mean energy spread of the data set was 5.1%. These results are consistent with the extrapolation of the previously reported energy gain results using a shorter, 36 cm-long plasma source to within 10%, evincing a non-evolving wake structure that can propagate distances of over a meter in length. Wake-loading effects were evident in the data through strong dependencies observed between various spectral properties and the amount of accelerated charge.

  18. Root-growth-inhibiting sheet

    DOE Patents [OSTI]

    Burton, Frederick G. (Stansbury Park, UT); Cataldo, Dominic A. (Kennewick, WA); Cline, John F. (Prosser, WA); Skiens, W. Eugene (Wilsonville, OR); Van Voris, Peter (Richland, WA)

    1993-01-01

    In accordance with this invention, a porous sheet material is provided at intervals with bodies of a polymer which contain a 2,6-dinitroaniline. The sheet material is made porous to permit free passage of water. It may be either a perforated sheet or a woven or non-woven textile material. A particularly desirable embodiment is a non-woven fabric of non-biodegradable material. This type of material is known as a "geotextile" and is used for weed control, prevention of erosion on slopes, and other landscaping purposes. In order to obtain a root repelling property, a dinitroaniline is blended with a polymer which is attached to the geotextile or other porous material.

  19. Root-growth-inhibiting sheet

    DOE Patents [OSTI]

    Burton, F.G.; Cataldo, D.A.; Cline, J.F.; Skiens, W.E.; Van Voris, P.

    1993-01-26

    In accordance with this invention, a porous sheet material is provided at intervals with bodies of a polymer which contain a 2,6-dinitroaniline. The sheet material is made porous to permit free passage of water. It may be either a perforated sheet or a woven or non-woven textile material. A particularly desirable embodiment is a non-woven fabric of non-biodegradable material. This type of material is known as a geotextile'' and is used for weed control, prevention of erosion on slopes, and other landscaping purposes. In order to obtain a root repelling property, a dinitroaniline is blended with a polymer which is attached to the geotextile or other porous material.

  20. Energy Gaining Windows for Residential Buildings Jesper Kragh, Assistant Professor,

    E-Print Network [OSTI]

    Energy Gaining Windows for Residential Buildings Jesper Kragh, Assistant Professor, Department University of Denmark; ss@byg.dtu.dk, www.byg.dtu.dk/english.aspx KEYWORDS: Low- energy windows, slim frame profiles, solar gain, net energy gain, low energy houses SUMMARY: This paper presents some of the research

  1. Long-term control of root growth

    DOE Patents [OSTI]

    Burton, Frederick G. (West Richland, WA); Cataldo, Dominic A. (Kennewick, WA); Cline, John F. (Prosser, WA); Skiens, W. Eugene (Richland, WA)

    1992-05-26

    A method and system for long-term control of root growth without killing the plants bearing those roots involves incorporating a 2,6-dinitroaniline in a polymer and disposing the polymer in an area in which root control is desired. This results in controlled release of the substituted aniline herbicide over a period of many years. Herbicides of this class have the property of preventing root elongation without translocating into other parts of the plant. The herbicide may be encapsulated in the polymer or mixed with it. The polymer-herbicide mixture may be formed into pellets, sheets, pipe gaskets, pipes for carrying water, or various other forms. The invention may be applied to other protection of buried hazardous wastes, protection of underground pipes, prevention of root intrusion beneath slabs, the dwarfing of trees or shrubs and other applications. The preferred herbicide is 4-difluoromethyl-N,N-dipropyl-2,6-dinitro-aniline, commonly known as trifluralin.

  2. A Frequency-Shift based CMOS Magnetic Biosensor with Spatially Uniform Sensor Transducer Gain

    E-Print Network [OSTI]

    Hajimiri, Ali

    the spatially uniform gain. II. SENSOR MECHANIMS AND SENSOR TRANSDUCER GAIN MODELING Magnetic biosensors

  3. Mechanism of the metallic metamaterials coupled to the gain material

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

    Huang, Zhixiang; Droulias, Sotiris; Koschny, Thomas; Soukoulis, Costas M.

    2014-10-11

    We present evidence of strong coupling between the gain material and the metallic metamaterials. It is of vital importance to understand the mechanism of the coupling of metamaterials with the gain medium. Using a four-level gain system, the numerical pump-probe experiments are performed in several configurations (split–ring resonators (SRRs), inverse SRRs and fishnets) of metamaterials, demonstrating reduction of the resonator damping in all cases and hence the possibility for loss compensation. We find that the differential transmittance ?T/T can be negative in different SRR configurations, such as SRRs on the top of the gain substrate, gain in the SRR gapmore »and gain covering the SRR structure, while in the fishnet metamaterial with gain ?T/T is positive.« less

  4. Mechanism of the metallic metamaterials coupled to the gain material

    SciTech Connect (OSTI)

    Huang, Zhixiang; Droulias, Sotiris; Koschny, Thomas; Soukoulis, Costas M.

    2014-10-11

    We present evidence of strong coupling between the gain material and the metallic metamaterials. It is of vital importance to understand the mechanism of the coupling of metamaterials with the gain medium. Using a four-level gain system, the numerical pump-probe experiments are performed in several configurations (split–ring resonators (SRRs), inverse SRRs and fishnets) of metamaterials, demonstrating reduction of the resonator damping in all cases and hence the possibility for loss compensation. We find that the differential transmittance ?T/T can be negative in different SRR configurations, such as SRRs on the top of the gain substrate, gain in the SRR gap and gain covering the SRR structure, while in the fishnet metamaterial with gain ?T/T is positive.

  5. Use of a photonic crystal for optical amplifier gain control

    DOE Patents [OSTI]

    Lin, Shawn-Yu (Albuquerque, NM); Fleming, James G. (Albuquerque, NM); El-Kady, Ihab (Albuquerque, NM)

    2006-07-18

    An optical amplifier having a uniform gain profile uses a photonic crystal to tune the density-of-states of a gain medium so as to modify the light emission rate between atomic states. The density-of-states of the gain medium is tuned by selecting the size, shape, dielectric constant, and spacing of a plurality of microcavity defects in the photonic crystal. The optical amplifier is particularly useful for the regeneration of DWDM signals in long optical fibers.

  6. ORISE: CDC Travelers' Health Mobile App, Designed by ORISE, Gains...

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

    This? Mobile App Helps International Travelers Make Safe Dining Choices CDC Travelers' Health app, designed by ORISE, gains attention on multiple websites How ORISE is Making a...

  7. Reflection systems and partial root systems Ottmar Loos a

    E-Print Network [OSTI]

    Neher, Erhard

    Reflection systems and partial root systems Ottmar Loos a and Erhard Neher b, Department.loos@uibk.ac.at bemail: neher@uottawa.ca Abstract. We develop a general theory of reflection systems and, more specifically, partial root sys- tems which provide a unifying framework for finite root systems, Kac-Moody root

  8. Design of a variable gain amplifier for an ultrawideband receiver 

    E-Print Network [OSTI]

    Krishnanji, Sivasankari

    2005-11-01

    throughout the gain range to cater to the requirements of the ultra-wideband system. The noise-to-power ratio of the VGA is -23.9 dB for 1Vp-p differential input signal in the low gain setting, and the equivalent input referred noise is 1.01 V2 for the high...

  9. PT invariant complex E(8) root spaces

    E-Print Network [OSTI]

    Andreas Fring; Monique Smith

    2010-10-11

    We provide a construction procedure for complex root spaces invariant under antilinear transformations, which may be applied to any Coxeter group. The procedure is based on the factorisation of a chosen element of the Coxeter group into two factors. Each of the factors constitutes an involution and may therefore be deformed in an antilinear fashion. Having the importance of the E(8)-Coxeter group in mind, such as underlying a particular perturbation of the Ising model and the fact that for it no solution could be found previously, we exemplify the procedure for this particular case. As a concrete application of this construction we propose new generalisations of Calogero-Moser Sutherland models and affine Toda field theories based on the invariant complex root spaces and deformed complex simple roots, respectively.

  10. Achieving improved cycle efficiency via pressure gain combustors

    SciTech Connect (OSTI)

    Gemmen, R.S.; Janus, M.C.; Richards, G.A.; Norton, T.S. [USDOE Morgantown Energy Technology Center, WV (United States); Rogers, W.A. [EG& G Technical Services of West Virginia, Morgantown, WV (United States)

    1995-04-01

    As part of the Department of Energy`s Advanced Gas Turbine Systems Program, an investigation is being performed to evaluate ``pressure gain`` combustion systems for gas turbine applications. This paper presents experimental pressure gain and pollutant emission data from such combustion systems. Numerical predictions for certain combustor geometries are also presented. It is reported that for suitable aerovalved pulse combustor geometries studied experimentally, an overall combustor pressure gain of nearly 1 percent can be achieved. It is also shown that for one combustion system operating under typical gas turbine conditions, NO{sub x} and CO emmissions, are about 30 ppmv and 8 ppmv, respectively.

  11. The Square Root Depth Wave Equations

    E-Print Network [OSTI]

    Colin C. Cotter; Darryl D. Holm; James R. Percival

    2009-12-11

    We introduce a set of coupled equations for multilayer water waves that removes the ill-posedness of the multilayer Green-Naghdi (MGN) equations in the presence of shear. The new well-posed equations are Hamiltonian and in the absence of imposed background shear they retain the same travelling wave solutions as MGN. We call the new model the Square Root Depth equations, from the modified form of their kinetic energy of vertical motion. Our numerical results show how the Square Root Depth equations model the effects of multilayer wave propagation and interaction, with and without shear.

  12. Multistage CSR microbunching gain development in transport or recirculation arcs

    E-Print Network [OSTI]

    Tsai, Cheng-Ying; Li, Rui; Tennant, Chris

    2015-01-01

    Coherent synchrotron radiation (CSR) induced microbunching instability has been one of the most challenging issues in the design of modern accelerators. A linear Vlasov solver has been developed [1] and applied to investigate the physical processes of microbunching gain amplification for several example lattices [2]. In this paper, by further extending the concept of stage gain as proposed by Huang and Kim [3], we develop a method to characterize the microbunching development in terms of stage orders that allow the quantitative comparison of optics impacts on microbunching gain for different lattices. We find that the microbunching instability in our demonstrated arcs has a distinguishing feature of multistage amplification (e.g, up to 6th stage amplification for our example transport arcs, in contrast to two-stage amplification for a typical 4-dipole bunch compressor chicane). We also try to connect lattice optics pattern with the obtained stage gain functions by a physical interpretation. This Vlasov analys...

  13. FEL GAIN LENGTH AND TAPER MEASUREMENTS AT LCLS

    E-Print Network [OSTI]

    Ratner, D.

    2010-01-01

    taper mea- surements from LCLS. We ?nd gain lengths of ? 2.9AND TAPER MEASUREMENTS AT LCLS ? D. Ratner † , A. Brachmann,et al. , First Results of the LCLS Laser-Heater Sys- tem,

  14. FEL GAIN LENGTH AND TAPER MEASUREMENTS AT LCLS

    E-Print Network [OSTI]

    Ratner, D.

    2010-01-01

    more than double the coherent, FEL power over the satura-FEL GAIN LENGTH AND TAPER MEASUREMENTS AT LCLS ? D.Figure 11: Post-saturation FEL pulse energy for a taper with

  15. Review of health and productivity gains from better IEQ

    SciTech Connect (OSTI)

    Fisk, William J.

    2000-08-01

    The available scientific data suggest that existing technologies and procedures can improve indoor environmental quality (IEQ) in a manner that significantly increases productivity and health. While there is considerable uncertainty in the estimates of the magnitudes of productivity gains that may be obtained, the projected gains are very large. For the U.S., the estimated potential annual savings and productivity gains are $6 to $14 billion from reduced respiratory disease, $2 to $4 billion from reduced allergies and asthma, $10 to $30 billion from reduced sick building syndrome symptoms, and $20 to $160 billion from direct improvements in worker performance that are unrelated to health. Productivity gains that are quantified and demonstrated could serve as a strong stimulus for energy efficiency measures that simultaneously improve the indoor environment.

  16. Root region airfoil for wind turbine

    DOE Patents [OSTI]

    Tangler, James L. (Boulder, CO); Somers, Dan M. (State College, PA)

    1995-01-01

    A thick airfoil for the root region of the blade of a wind turbine. The airfoil has a thickness in a range from 24%-26% and a Reynolds number in a range from 1,000,000 to 1,800,000. The airfoil has a maximum lift coefficient of 1.4-1.6 that has minimum sensitivity to roughness effects.

  17. REGULAR ARTICLE A comparison of methods for converting rhizotron root

    E-Print Network [OSTI]

    provide valuable information about plant root production, but measurements are usually made in units of root length per unit surface area of observation window surface. These measure- ment units developed to convert rhizotron measurement units into root mass production per unit ground area

  18. Information Gain Based Dimensionality Selection for Classifying Text Documents

    SciTech Connect (OSTI)

    Dumidu Wijayasekara; Milos Manic; Miles McQueen

    2013-06-01

    Selecting the optimal dimensions for various knowledge extraction applications is an essential component of data mining. Dimensionality selection techniques are utilized in classification applications to increase the classification accuracy and reduce the computational complexity. In text classification, where the dimensionality of the dataset is extremely high, dimensionality selection is even more important. This paper presents a novel, genetic algorithm based methodology, for dimensionality selection in text mining applications that utilizes information gain. The presented methodology uses information gain of each dimension to change the mutation probability of chromosomes dynamically. Since the information gain is calculated a priori, the computational complexity is not affected. The presented method was tested on a specific text classification problem and compared with conventional genetic algorithm based dimensionality selection. The results show an improvement of 3% in the true positives and 1.6% in the true negatives over conventional dimensionality selection methods.

  19. Development of a gain monitoring system for a neutron detector array

    E-Print Network [OSTI]

    Saskatchewan, University of

    Development of a gain monitoring system for a neutron detector array By Brian Bewer University gain monitoring system was created to find relative gains of the Blowfish detectors during experiment a reliable cross section calculation. #12;Gain Monitoring System · The gain monitor has four major components

  20. Root region airfoil for wind turbine

    DOE Patents [OSTI]

    Tangler, J.L.; Somers, D.M.

    1995-05-23

    A thick airfoil is described for the root region of the blade of a wind turbine. The airfoil has a thickness in a range from 24%--26% and a Reynolds number in a range from 1,000,000 to 1,800,000. The airfoil has a maximum lift coefficient of 1.4--1.6 that has minimum sensitivity to roughness effects. 3 Figs.

  1. for estimates of root production and the ca-pacity of soils to store carbon. If most root

    E-Print Network [OSTI]

    von der Linde, D.

    1345 for estimates of root production and the ca- pacity of soils to store carbon. If most root of soil respiration and leaf litterfall (8). This carbon supports all root functions, not just growth not really un- derstand the pathways this carbon takes; some may be retained in soils for many years through

  2. Pressure-gain combustion. Part 2: Experimental and model results

    SciTech Connect (OSTI)

    Richards, G.A.; Gemmen, R.S. [Dept. of Energy, Morgantown, WV (United States). Morgantown Energy Technology Center

    1996-07-01

    An experimental investigation of aerovalve pulse combustion is presented. The experimental measurements compare favorably with model predictions from a control-volume analysis of the pulse combustor. Particular emphasis is placed on the mean pressure differences through the combustor as an indicator of the so-called pressure gain performance. Both the operating conditions and combustor geometry are investigated. It is shown that complex fluid/combustion interactions within the combustor make it difficult to isolate the effect of geometric changes. A scaling rule developed from the control-volume analysis is used to produce a combustor geometry capable of producing pressure gain.

  3. I've had the privilege of serving as the Division Chair for Engineering and Applied Science since June 2000 and in that time I've developed a renewed appreciation of

    E-Print Network [OSTI]

    #12;I've had the privilege of serving as the Division Chair for Engineering and Applied Science for education and research at Caltech is extraordinary, and the traditions of multi-disciplinary, basic research--aimed at changing the world around us--remain alive and well. Coupled with the enormous economic and intellectual

  4. Complex roots in the inhour equation of coupled reactors 

    E-Print Network [OSTI]

    Yeh, Elizabeth Ching

    1970-01-01

    Parameters. II Complex Roots s = x + iy of Complex Inhour Equation and Physical Parameters of Input Data. . . . . . . . . . . . . . . 39 III Analytical Bounds of Complex Roots. vii LIST OF FIGURES Figure Page Real roots of inhour equation for two... Roots of Inhour Equation To discuss the complex roots, we resolve equation (14-a) into its real ond imaginary parts by letting s = x + iy, then (x+iy) A(x+iy) = ( ? ? ? 6) +e e p+2g 2 R 2 -2r (x+iy) + [ ? + c e p 2 t l p+2 1Rx irqy (~-B)+c e e 2 R...

  5. Impact of Solar Heat Gain on Radiant Floor Cooling System Design

    E-Print Network [OSTI]

    Feng, Jingjuan Dove; Schiavon, Stefano; Bauman, Fred

    2013-01-01

    Bauman F. 2013. Impact of Solar Heat Gain on Radiant FloorBauman F. 2013. Impact of Solar Heat Gain on Radiant FloorBauman F. 2013. Impact of Solar Heat Gain on Radiant Floor

  6. Performance of Hole-Coupling Resonator in the Presence of Asymmetric Modes and FEL Gain

    E-Print Network [OSTI]

    Xie, M.

    2011-01-01

    is derived in, K. -1. Kim, "FEL Gain Taking into Accountof Asymmetric Modes :1nd FEL Gain M. Xie and K. -J. KimOF ASYMMETRIC MODES AND FEL GAIN· Ming Xie and Kwang-Je Kim

  7. GAINFUL EMPLOYMENT DISCLOSURE SCHOOL OF LIBRARY AND INFORMATION SCIENCE

    E-Print Network [OSTI]

    Cinabro, David

    GAINFUL EMPLOYMENT DISCLOSURE SCHOOL OF LIBRARY AND INFORMATION SCIENCE GRADUATE CERTIFICATE. · For additional program information: http://slis.wayne.edu/certificates/archival-administration.php Classification://nces.ed.gov/ipeds/cipcode/cipdetail.aspx?y=55&cipid=89431 STANDARDIZED OCCUPATIONAL CLASSIFICATION (SOC) CODES · 25-4013.00 Museum Technicians

  8. GAINFUL EMPLOYMENT DISCLOSURE SCHOOL OF LIBRARY AND INFORMATION SCIENCE

    E-Print Network [OSTI]

    Cinabro, David

    GAINFUL EMPLOYMENT DISCLOSURE SCHOOL OF LIBRARY AND INFORMATION SCIENCE GRADUATE CERTIFICATE information: http://slis.wayne.edu/certificates/information-management.php Classification of Instructional://nces.ed.gov/ipeds/cipcode/cipdetail.aspx?y=55&cipid=89431 STANDARDIZED OCCUPATIONAL CLASSIFICATION (SOC) CODES · 11-9199.07 Security Managers

  9. Realized Gain from Breeding Eucalyptus grandis in Florida1

    E-Print Network [OSTI]

    Realized Gain from Breeding Eucalyptus grandis in Florida1 George Meskimen2 A small but intense eucalyptus research effort began in Florida in 1961 with the private, non- profit Florida Forests Florida. By 1965 we had established numerous eucalyptus experiments, including 14 screening trials

  10. A Guide for International PhD Gain a Doctorate

    E-Print Network [OSTI]

    Schüler, Axel

    A Guide for International PhD Candidates Gain a Doctorate in Leipzig internationalCentre|AAA 1 #12;Contents page Why choose the Universität Leipzig for my PhD? 3 Application and Admission 4 Which PhD programme is right for me? 4 5 steps to a PhD 5 Research Academy Leipzig 8 Internationale

  11. Gain effect waveguide optical amplifiers for Si microphotonics

    E-Print Network [OSTI]

    Saini, Sajan, 1973-

    2004-01-01

    (cont.) Er-based gain. We reported the first infrared photoluminescence PL study of Er?O? and found a 7 ms lifetime at 4 K, attributed to a metastable FCC or HCP phase. We showed the thermodynamically stable BCC crystal ...

  12. 1 INTRODUCTION Alternative energy sources have increasingly gained

    E-Print Network [OSTI]

    Sandborn, Peter

    1 INTRODUCTION Alternative energy sources have increasingly gained the interest for governments it is required, is a major concern for alternative energy systems. Profits and environmental benefits, research institutes, academia, and industry in order to advance the penetration of sustainable energy

  13. Time to Go Solar with Solarize U Gain energy independence

    E-Print Network [OSTI]

    Royer, Dana

    #12;Time to Go Solar with Solarize U · Gain energy independence · Have more disposable income for solar, insulation or other measures · Home Energy Solutions (HES) program offered through UI for solar For information on programs and financing to help you reduce energy use and save money, please

  14. Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain

    E-Print Network [OSTI]

    Levinson, Ronnen

    2010-01-01

    z = 60 ? ) based on prediction of annual peak solar heatgain, prediction of annual mean solar heat gain, andFirst criterion: prediction of annual peak solar heat gain.

  15. Take-All Root Rot of Turfgrass 

    E-Print Network [OSTI]

    Krausz, Joseph P.

    2005-04-21

    year for St. Augustinegrass, or 5 pounds per 1,000 square feet per year for bermudagrass. If thatch build-up is a problem, use a vertical mower to break up the thatch, aerate the soil with a core aerifyer, and mow at the proper height (2 to 3... inches for St. Augus- tinegrass and 1 to 1.5 inches for bermudagrass). compacted. Fungicides If take-all root rot or bermudagrass decline are a problem in your lawn, you will probably need to apply a fungicide. Fall and spring are the best times to do...

  16. Root River Energy LLC | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LIST OFAMERICA'SHeavyAgency (IRENA)OptionsEquivalent URIGumCenterRidgeWindRoot River

  17. Quantum master equation with balanced gain and loss

    E-Print Network [OSTI]

    Dennis Dast; Daniel Haag; Holger Cartarius; Günter Wunner

    2014-11-20

    We present a quantum master equation describing a Bose-Einstein condensate with particle loss on one lattice site and particle gain on the other lattice site whose mean-field limit is a non-Hermitian PT-symmetric Gross-Pitaevskii equation. It is shown that the characteristic properties of PT-symmetric systems, such as the existence of stationary states and the phase shift of pulses between two lattice sites, are also found in the many-particle system. Visualizing the dynamics on a Bloch sphere allows us to compare the complete dynamics of the master equation with that of the Gross-Pitaevskii equation. We find that even for a relatively small number of particles the dynamics are in excellent agreement and the master equation with balanced gain and loss is indeed an appropriate many-particle description of a PT-symmetric Bose-Einstein condensate.

  18. High gain preamplifier based on optical parametric amplification

    DOE Patents [OSTI]

    Jovanovic, Igor; Bonner, Randal A.

    2004-08-10

    A high-gain preamplifier based on optical parametric amplification. A first nonlinear crystal is operatively connected to a second nonlinear crystal. A first beam relay telescope is operatively connected to a second beam relay telescope, to the first nonlinear crystal, and to the second nonlinear crystal. A first harmonic beamsplitter is operatively connected to a second harmonic beamsplitter, to the first nonlinear crystal, to the second nonlinear crystal, to the first beam relay telescope, and to the second beam relay telescope.

  19. Gain-assisted superluminal light propagation via incoherent pump field

    E-Print Network [OSTI]

    M. Mahmoudi; S. Worya Rabiei; L. Safari; M. Sahrai

    2008-08-03

    We investigate the dispersion and the absorption properties of a weak probe field in a three-level Lambda-type atomic system. We use just an incoherent field for controlling the group velocity of light. It is shown that the slope of dispersion changes from positive to negative just with changing the intensity of the indirect incoherent pumping field. Gain-assisted superluminal light propagation appears in this system. No laser field is used in the pumping processes.

  20. Work and energy gain of heat-pumped quantized amplifiers

    E-Print Network [OSTI]

    David Gelbwaser-Klimovsky; Robert Alicki; Gershon Kurizki

    2013-10-09

    We investigate heat-pumped single-mode amplifiers of quantized fields in high-Q cavities based on non-inverted two-level systems. Their power generation is shown to crucially depend on the capacity of the quantum state of the field to accumulate useful work. By contrast, the energy gain of the field is shown to be insensitive to its quantum state. Analogies and differences with masers are explored.

  1. The unseen iceberg: Plant roots in arctic tundra

    SciTech Connect (OSTI)

    Iversen, Colleen M; Sloan, Victoria L; Sullivan, Patrick F.; Euskirchen, Eugenie S; McGuire, A. David; Norby, Richard J; Walker, Anthony P; Warren, Jeffrey; Wullschleger, Stan D

    2015-01-01

    Arctic tundra is characterized by short-statured plant communities underlain by carbon (C)-rich soils and permafrost. Ecosystem C and nutrient cycles in tundra are driven by complex interactions between plants and their environment. However, root dynamics are one of the least understood aspects of plant growth in the Arctic. We synthesized available literature on tundra roots and discussed their representation in terrestrial biosphere models. Belowground biomass in tundra ecosystems can be an order of magnitude larger than aboveground biomass. Data on root production and turnover in tundra is sparse, limiting our understanding of the controls over root dynamics in these systems. Roots are shallowly distributed in the thin layer of soil that thaws each year, and are often found in the organic horizon at the soil surface. Species-specific differences in root distribution, mycorrhizal colonization, and resource partitioning may affect plant species competition under changing climatic conditions. Model representation of belowground processes has increased in complexity over recent years, but data are desperately needed to fill the gaps in model treatment of tundra roots. Future research should focus on estimates of root production and lifespan, and interactions between roots and the surrounding soil across the diversity of tundra ecosystems in the Arctic.

  2. Fresnel reflection from a cavity with net roundtrip gain

    E-Print Network [OSTI]

    Mansuripur, Tobias S

    2013-01-01

    A planewave incident on an active etalon with net roundtrip gain may be expected to diverge in field amplitude, yet Maxwell's equations admit only a convergent solution. By examining a Gaussian beam obliquely incident on such a cavity, we find that the "side-tail" of the beam leaks into the cavity and gives rise to a field that interferes with the main portion of the beam, which is ultimately responsible for the convergence of the field. This mechanism offers perspective for many phenomena, and we specifically discuss the implications for amplified total internal reflection.

  3. High target gain to ICF reactor - a problem of repetition

    SciTech Connect (OSTI)

    Moses, G.A.

    1981-01-01

    The near term goal of the inertial confinement fusion (ICF) program in the United States is the demonstration of high target gain, where the thermonuclear energy released from the ICF target exceeds the driver energy input to the target by roughly a factor of one hundred or more. This paper briefly reviews the most notable published ICF conceptual reactor designs and then focuses on the engineering problems of commercial ICF reactors with emphasis on the problems associated with the high repetition frequency inherent in such systems.

  4. Scientists gain insight into origin of tungsten ditelluride's

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power AdministrationRobust, High-ThroughputUpcomingmagnetoresistance | Argonne National Laboratory gain insight

  5. Original article Root biomass and biomass increment in a beech

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Original article Root biomass and biomass increment in a beech (Fagus sylvatica L.) stand in North ­ This study is part of a larger project aimed at quantifying the biomass and biomass increment been developed to estimate the biomass and biomass increment of coarse, small and fine roots of trees

  6. A Maple Package for Root Systems and Finite Coxeter Groups

    E-Print Network [OSTI]

    Stembridge, John

    A Maple Package for Root Systems and Finite Coxeter Groups Version 2.4 #3; February 28, 2004 John R in the study of root systems, #12;nite Coxeter groups, and Weyl characters. The coxeter package contains 38;nds in the appendices of Bourbaki [1]. The weyl package is a supple- ment to coxeter containing 12

  7. Research Article Connecting Soil Organic Carbon and Root Biomass with

    E-Print Network [OSTI]

    Debinski, Diane M.

    of Earth's terrestrial organic carbon but are sensitive to land-use. Rangelands are important to carbon. Introduction Soils constitute the greatest stock of terrestrial organic carbon [1] and soil properties can major pathways of organic matter input--root tissue and exudates--directly involve plants [22]. Roots

  8. Automatic Computation of the Complete Root Classification for a Parametric

    E-Print Network [OSTI]

    Jeffrey, David

    Automatic Computation of the Complete Root Classification for a Parametric Polynomial Songxin Liang, Canada Abstract An improved algorithm, together with its implementation, is presented for the automatic) for references. Our present goal is to compute automat- ically the Complete Root Classification (CRC

  9. Root Modeling: Estimating Storage, Live, and Dead Pool

    E-Print Network [OSTI]

    Post, Wilfred M.

    Root Modeling: Estimating Storage, Live, and Dead Pool Turnover Times; Storage Inputs to New Root to choose best-fit parameters · "Storage" simulations with in-growth cores · Live and dead pool simulations Atmosphere East Atmosphere; 1 SD East tree rings f(Average respiration and soil gas) Modeled GSD = 1.3 Range

  10. In Situ Root System Architecture Extraction from Magnetic Resonance

    E-Print Network [OSTI]

    Behnke, Sven

    using SmartRoot (Lobet et al., 2011). It is tested on the basis of a MRI image of a 25 days old lupin was inspired by methods for blood vessel detection in MRI images. It describes the root system). Both systems work well and allow for continuous water flow. Slight differences in the connectivity

  11. Reflection systems and partial root systems Ottmar Loos and Erhard Neher

    E-Print Network [OSTI]

    Neher, Erhard

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

  12. Electrical and Optical Gain Lever Effects in InGaAs Double Quantum Well Diode Lasers

    SciTech Connect (OSTI)

    Pocha, M D; Goddard, L L; Bond, T C; Nikolic, R J; Vernon, S P; Kallman, J S; Behymer, E M

    2007-01-03

    In multisection laser diodes, the amplitude or frequency modulation (AM or FM) efficiency can be improved using the gain lever effect. To study gain lever, InGaAs double quantum well (DQW) edge emitting lasers have been fabricated with integrated passive waveguides and dual sections providing a range of split ratios from 1:1 to 9:1. Both the electrical and the optical gain lever have been examined. An electrical gain lever with greater than 7 dB enhancement of AM efficiency was achieved within the range of appropriate DC biasing currents, but this gain dropped rapidly outside this range. We observed a 4 dB gain in the optical AM efficiency under non-ideal biasing conditions. This value agreed with the measured gain for the electrical AM efficiency under similar conditions. We also examined the gain lever effect under large signal modulation for digital logic switching applications. To get a useful gain lever for optical gain quenched logic, a long control section is needed to preserve the gain lever strength and a long interaction length between the input optical signal and the lasing field of the diode must be provided. The gain lever parameter space has been fully characterized and validated against numerical simulations of a semi-3D hybrid beam propagation method (BPM) model for the coupled electron-photon rate equation. We find that the optical gain lever can be treated using the electrical injection model, once the absorption in the sample is known.

  13. Linear Gain for the Microbunching Instability in an RF Compressor

    SciTech Connect (OSTI)

    Venturini, M.; Migliorati, M.; Ronsivalle, C.; Vaccarezza, C.

    2009-05-01

    Velocity (or rf) compression has been suggested as a technique for bunch compression complementary to the more established technique involving magnetic chicanes and represents an important research item being investigated at the SPARC test facility. One of the aspects of this technique still not sufficiently understood is its possible impact on the microbunching instability. The purpose of this report is to present the analytical framework for investigating this instability in rf compressors. We use methods similar to those successfully applied to magnetic compressors and derive some integral equations yielding the gain for the instability in linear approximation. The focus here is on the derivation of the relevant equations. Although examples of solutions to these equations are provided we defer a more comprehensive discussion of their implication to a future report. The present study is part of a larger effort for a more comprehensive investigation that eventually will include macroparticle simulations and experiments.

  14. Development of a pressure gain combustor for improved cycle efficiency

    SciTech Connect (OSTI)

    Gemmen, R.S.; Richards, G.A.; Janus, M.C.

    1994-09-01

    This paper presents results from an experimental research program attempting to improve the thermodynamic efficiencies of gas-turbine combustors. An elementary thermodynamic analysis shows that the thermodynamic cycle efficiencies of gas turbines can be significantly improved by using unsteady combustion that achieves quasi-constant-volume combustion. The ability to produce the so-called pressure gain via this process has already been demonstrated by others for pressures less than 3 atmospheres. This paper presents experimental results for pressures up to 11 atmospheres, compares certain process parameters to a numerical simulation, and briefly examines the problem of scale-up. Results of pollutant measurements over the 2--11 atmospheric range of operation are also included.

  15. Pressure-gain combustion. Part 1: Model development

    SciTech Connect (OSTI)

    Narayanaswami, L. [Embry-Riddle Aeronautical Univ., Daytona Beach, FL (United States); Richards, G.A. [Dept. of Energy, Morgantown, WV (United States). Morgantown Energy Technology Center

    1996-07-01

    A model for aerodynamically valved pulse combustion is presented. Particular emphasis is placed on using the model equations to identify characteristic length and time scales relevant to the design of pressure-gain combustors for gas turbine applications. The model is a control volume description of conservation laws for several regions of the pulse combustor. Combustion is modeled as a bimolecular reaction. Mixing between the fresh charge and the combustion products is modeled using a turbulent eddy time estimated from the combustor geometry and flow conditions. The model equations identify two characteristic lengths, which should be held constant during combustor scaleup, as well as certain exceptions to this approach. The effect of ambient operating pressure and inlet air temperature is also discussed.

  16. Relative Gain Monitoring of the GlueX Calorimeters

    SciTech Connect (OSTI)

    Anassontzis, Efstratios G.; Kourkoumelis, C.; Vasileiadis, G.; Voulgaris, G.; Kappos, E.; Beattie, T.; Krueger, S.; Lolos, G. J.; Papandreou, Z.; Semenov, A. Yu.; Frye, John M.; Leckey, John P.; Shepherd, Matt; Bogart, T.; Smith, Elton S.

    2014-02-01

    The relative gain of the photodetectors for the GlueX Barrel and Forward calorimeters will be monitored using modular LED driver systems. The BCAL system consists of a global controller that feeds power, bias voltage and trigger signals to 96 local controllers situated at the ends of the 48 BCAL modules, which drive 40 LEDs associated with the 40 light guides at the end of each module. The FCAL system consists also of a global controller, a local controller for each acrylic quadrant covering the face of the FCAL, and ten 4-LED pulser boards per local controller connected in a star configuration along the edges of the acrylic panes. The respective systems are currently being installed on the detectors and their tested performance is presented herein.

  17. Progress on achieving the ICF conditions needed for high gain

    SciTech Connect (OSTI)

    Lindl, J.D.

    1988-12-23

    Progress during the past two years has moved us much closer to demonstrating the scientific and technological requirements for high gain ICF in the laboratory. This progress has been made possible by operating at the third harmonic of 1..mu..m light which dramatically reduces concern about hot electrons and by advances in diagnostics such as 100 ps x-ray framing cameras which greatly increase the data available from each experiment. Making use of many of these new capabilities, major improvements in confinement conditions have been achieved for ICF implosions. In particular, in an optimized hohlraum on Nova, radiation driven implosions with convergence ratio in excess of 30 (volume compression /approximately/3 /times/ 10/sup 4/) have performed essentially as predicted by spherical implosion calculations. This paper presents these results as well as examples of advances in several other areas and discusses the implications for the future of ICF with lasers and heavy ion beam drivers. 8 refs., 10 figs.

  18. Eigenmode analysis of a high-gain free-electron laser based on...

    Office of Scientific and Technical Information (OSTI)

    Eigenmode analysis of a high-gain free-electron laser based on a transverse gradient undulator Citation Details In-Document Search Title: Eigenmode analysis of a high-gain...

  19. Evaluation of the genetic gain in upland cotton during the twentieth century 

    E-Print Network [OSTI]

    Schwartz, Brian Matthew

    2007-04-25

    Genetic gain studies in the past have been used to evaluate the historical improvement of different traits and give insight into what magnitudes of gain might be possible in the future. Additionally, they have been carried ...

  20. FEL Gain Taking into Account Diffraction and Electron Beam Emittance; Generalized Madey's Theorem

    E-Print Network [OSTI]

    Kim, K.-J.

    2011-01-01

    be published in the Proceedings FEL Gain Taking into AccountLBL--30628 DE92 002262 FEL Gain Taking into Accountfunction SF contains the FEL dynamics, and will be regarded

  1. Room temperature broadband terahertz gains in graphene heterostructures based on inter-layer radiative transitions

    SciTech Connect (OSTI)

    Tang, Linlong [Key Laboratory of High Energy Density Physics and Technology, College of Physics and Technology, Sichuan University, Chengdu, 610064 (China); Chongqing institute of green and intelligent technology, Chinese Academy of Sciences, Chongqing, 401122 (China); Du, Jinglei, E-mail: dujl@scu.edu.cn [Key Laboratory of High Energy Density Physics and Technology, College of Physics and Technology, Sichuan University, Chengdu, 610064 (China); Shi, Haofei, E-mail: shi@cigit.ac.cn; Wei, Dongshan; Du, Chunlei, E-mail: cldu@cigit.ac.cn [Chongqing institute of green and intelligent technology, Chinese Academy of Sciences, Chongqing, 401122 (China)

    2014-10-15

    We exploit inter-layer radiative transitions to provide gains to amplify terahertz waves in graphene heterostructures. This is achieved by properly doping graphene sheets and aligning their energy bands so that the processes of stimulated emissions can overwhelm absorptions. We derive an expression for the gain estimation and show the gain is insensitive to temperature variation. Moreover, the gain is broadband and can be strong enough to compensate the free carrier loss, indicating graphene based room temperature terahertz lasers are feasible.

  2. Development of a Gain Monitoring System for a Neutron Detector Array

    E-Print Network [OSTI]

    Saskatchewan, University of

    Development of a Gain Monitoring System for a Neutron Detector Array A Thesis Submitted the neutron detector array a gain monitoring system will be included. The new system will provide continuous conducted to determine the accuracy of the gain monitoring system. Three groups of trials focused

  3. Performance Impact of Solar Gain on Photovoltaic Inverters and Utility-Scale Energy Generation Systems

    E-Print Network [OSTI]

    Performance Impact of Solar Gain on Photovoltaic Inverters and Utility-Scale Energy Generation of solar gain contributions. A novel solar gain utility-scale inverter model has been developed to characterize inverter efficiency with respect to solar resource, general ambient conditions and thermal system

  4. "Going Back to our Roots": Second Generation Biocomputing

    E-Print Network [OSTI]

    Fernandez, Thomas

    "Going Back to our Roots": Second Generation Biocomputing JON TIMMIS1 , MARTYN AMOS2 , WOLFGANG of the fundamental underlying bi- ological principles (for example, the basic crossover operator used in genetic

  5. Where are the roots of the Bethe Ansatz equations?

    E-Print Network [OSTI]

    R. S. Vieira; A. Lima-Santos

    2015-07-13

    Changing the variables in the Bethe Ansatz Equations (BAE) for the XXZ six-vertex model we had obtained a coupled system of polynomial equations. This provided a direct link between the BAE deduced from the Algebraic Bethe Ansatz (ABA) and the BAE arising from the Coordinate Bethe Ansatz (CBA). For two magnon states this polynomial system could be decoupled and the solutions given in terms of the roots of some self-inversive polynomials. From theorems concerning the distribution of the roots of self-inversive polynomials we made a thorough analysis of the two magnon states, which allowed us to find the location and multiplicity of the Bethe roots in the complex plane, to discuss the completeness and singularities of Bethe's equations, the ill-founded string-hypothesis concerning the location of their roots, as well as to find an interesting connection between the BAE with Salem's polynomials.

  6. Fluid dynamics of aortic root dilation in Marfan syndrome

    E-Print Network [OSTI]

    Querzoli, Giorgio; Espa, Stefania; Costantini, Martina; Sorgini, Francesca

    2014-01-01

    Aortic root dilation and propensity to dissection are typical manifestations of the Marfan Syndrome (MS), a genetic defect leading to the degeneration of the elastic fibres. Dilation affects the structure of the flow and, in turn, altered flow may play a role in vessel dilation, generation of aneurysms, and dissection. The aim of the present work is the investigation in-vitro of the fluid dynamic modifications occurring as a consequence of the morphological changes typically induced in the aortic root by MS. A mock-loop reproducing the left ventricle outflow tract and the aortic root was used to measure time resolved velocity maps on a longitudinal symmetry plane of the aortic root. Two dilated model aortas, designed to resemble morphological characteristics typically observed in MS patients, have been compared to a reference, healthy geometry. The aortic model was designed to quantitatively reproduce the change of aortic distensibility caused by MS. Results demonstrate that vorticity released from the valve ...

  7. Square Root of Metric: The Geometry Background of Unified Theory?

    E-Print Network [OSTI]

    De-Sheng Li

    2015-09-29

    We use the square root of inverse metric described by $l=u^{\\dagger} \\gamma^{a} u \\theta_{a}$ construct an $U(4)$ gauge invariant, locally Lorentz invariant and generally covariant Lagrangian $\\mathcal{L}=\

  8. Missing links in the root-soil organic matter continuum

    SciTech Connect (OSTI)

    O'Brien, Sarah L.; Iversen, Colleen M

    2009-01-01

    The soil environment remains one of the most complex and poorly understood research frontiers in ecology. Soil organic matter (SOM), which spans a continuum from fresh detritus to highly processed, mineral-associated organic matter, is the foundation of sustainable terrestrial ecosystems. Heterogeneous SOM pools are fueled by inputs from living and dead plants, driven by the activity of micro- and mesofauna, and are shaped by a multitude of abiotic factors. The specialization required to measure unseen processes that occur on a wide range of spatial and temporal scales has led to the partitioning of soil ecology research across several disciplines. In the organized oral session 'Missing links in the root-soil organic matter continuum' at the annual Ecological Society of America meeting in Albuquerque, NM, USA, we joined the call for greater communication and collaboration among ecologists who work at the root-soil interface (e.g. Coleman, 2008). Our goal was to bridge the gap between scientific disciplines and to synthesize disconnected pieces of knowledge from root-centric and soil-centric studies into an integrated understanding of belowground ecosystem processes. We focused this report around three compelling themes that arose from the session: (1) the influence of the rhizosphere on SOM cycling, (2) the role of soil heterotrophs in driving the transformation of root detritus to SOM, and (3) the controlling influence of the soil environment on SOM dynamics. We conclude with a discussion of new approaches for gathering data to bridge gaps in the root-SOM continuum and to inform the next generation of ecosystem models. Although leaf litter has often been considered to be the main source of organic inputs to soil, Ann Russell synthesized a convincing body of work demonstrating that roots, rather than surface residues, control the accumulation of SOM in a variety of ecosystems. Living roots, which are chemically diverse and highly dynamic, also influence a wide range of soil processes, from the exudation of labile C compounds to the development of fungal associations. For example, Zoe Cardon demonstrated that the root-mediated redistribution of deep soil water to relatively dry shallower soil, increased soil CO{sub 2} efflux and nutrient cycling near the surface in an arid ecosystem. Andrew Kulmatiski also discussed the importance of rooting distribution throughout the soil profile for strategies of water uptake by different species in an African savanna. Later, Julie Jastrow demonstrated that living roots shape soil physical structure by promoting the formation of soil aggregates, which facilitated accrual of SOM in restored grasslands. Taken together, the evidence is compelling that living roots, and organic matter derived from root detritus, are important parts of the continuum of organic matter in the soil. Larger soil organisms (i.e. 50 {micro}m to many cm in body size) play an important role in the root-SOM continuum by grazing on roots and microbes, comminuting organic matter and aggregating soil in fecal pellets. However, litterbag and soil incubation studies necessarily exclude invertebrates, and research on faunal activity and trophic dynamics tends to be independent from research on the biogeochemistry of SOM cycling. Tim Filley used plant-derived biomarkers in invertebrate residues to bridge the gap between larger soil organisms, such as earthworms and beetle larvae, and SOM distribution. He found that larger soil organisms help to stabilize root-derived organic matter in soil aggregates. Similar coupling of biogeochemistry with food web studies could prove fruitful for describing mechanisms that underlie critical ecosystem processes. Despite considerable research efforts, the breadth of the microbial role in the root-SOM continuum remains unresolved. Using advanced pyrosequencing techniques, David Nelson demonstrated the importance of archea as nitrifiers in agricultural systems exposed to elevated [CO{sub 2}]. Rising atmospheric [CO{sub 2}] and other changing environmental factors add a layer of complexity t

  9. Chinese Americans in China: Ethnicity, Transnationalism, and Roots Tourism 

    E-Print Network [OSTI]

    Ueda (Maruyama), Naho

    2010-07-14

    , the purpose of this dissertation is to explore the experiences of visiting ancestral land among second generation immigrants. For the purpose of this study, I focus on experiences of roots tourism among Chinese Americans. By investigating their motivation...

  10. Intern experience at Brown & Root, Inc.: an internship report 

    E-Print Network [OSTI]

    Kibbee, Stephen Edward, 1951-

    2013-03-13

    To document that the objectives of the internship were met, the report examines the organizational approach at Brown & Root and then describes seven major job assignments that were completed by the author during ...

  11. Alien invasion Getting to the root of radiation

    E-Print Network [OSTI]

    Dawson, Jeff W.

    Alien invasion Getting to the root of radiation Fighting crime with genetic ingenuity Fall2005 troublesome alien plants in North America, among other faculty research stories. As usual, you will also hear

  12. Design of a tree root ball transporting device

    E-Print Network [OSTI]

    Grossman, Christopher (Christopher M.)

    2007-01-01

    Tree root balls from nurseries are often too heavy for one or two people to lift and plant, but powerful machinery can be expensive for small landscaping organizations or the weekend home gardener. This thesis intends to ...

  13. The distribution of prime numbers on the square root spiral

    E-Print Network [OSTI]

    Harry K. Hahn; Robert Sachs

    2008-01-09

    Prime Numbers clearly accumulate on defined spiral graphs,which run through the Square Root Spiral. These spiral graphs can be assigned to different spiral-systems, in which all spiral-graphs have the same direction of rotation and the same -second difference- between the numbers, which lie on these spiral-graphs. A mathematical analysis shows, that these spiral graphs are caused exclusively by quadratic polynomials. For example the well known Euler Polynomial x2+x+41 appears on the Square Root Spiral in the form of three spiral-graphs, which are defined by three different quadratic polynomials. All natural numbers,divisible by a certain prime factor, also lie on defined spiral graphs on the Square Root Spiral (or Spiral of Theodorus, or Wurzelspirale). And the Square Numbers 4, 9, 16, 25, 36 even form a highly three-symmetrical system of three spiral graphs, which divides the square root spiral into three equal areas. Fibonacci number sequences also play a part in the structure of the Square Root Spiral. With the help of the Number-Spiral, described by Mr. Robert Sachs, a comparison can be drawn between the Square Root Spiral and the Ulam Spiral. The shown sections of his study of the number spiral contain diagrams, which are related to my analysis results, especially in regards to the distribution of prime numbers.

  14. Lease of Power Privilege Flowchart: Lease of Power Privilege Contract

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: Energy ResourcesProjectMississippi:Learned,

  15. caused by the wood-rotting basidiomycete fungus Heterobasidion annosum. This pathogen gains entry

    E-Print Network [OSTI]

    caused by the wood-rotting basidiomycete fungus Heterobasidion annosum. This pathogen gains entry viability and discourages germination while preventing the growth of other microorganisms. The concentrated

  16. Post-Genomics Nanotechnology Is Gaining Momentum: Nanoproteomics and Applications in Life Sciences

    E-Print Network [OSTI]

    Tan, Weihong

    Post-Genomics Nanotechnology Is Gaining Momentum: Nanoproteomics and Applications in Life Sciences of nanotechnology applications, including nanoporous structures, functionalized nanoparticles, quantum dots

  17. Impact of Solar Heat Gain on Radiant Floor Cooling System Design

    E-Print Network [OSTI]

    Feng, Jingjuan Dove; Schiavon, Stefano; Bauman, Fred

    2013-01-01

    Radiant Heating and Cooling Systems, in, 2012. [15] F.Gain on Radiant Floor Cooling System Design. Proceedings ofof radiant floor cooling systems and their associated air

  18. Impact of Solar Heat Gain on Radiant Floor Cooling System Design

    E-Print Network [OSTI]

    Feng, Jingjuan Dove; Schiavon, Stefano; Bauman, Fred

    2013-01-01

    load and capacity; solar heat gain; Radiant design standardssignificance of solar radiation in the design process andthe magnitude of solar impacts under various design/control

  19. A near infrared organic photodiode with gain at low bias voltage

    SciTech Connect (OSTI)

    Campbell, Ian H [Los Alamos National Laboratory; Crone, Brian K [Los Alamos National Laboratory

    2009-01-01

    We demonstrate an organic photodiode with near infrared optical response out to about 1100 run with a gain of {approx}10 at 1000 run under 5V reverse bias. The diodes employ a soluble naphthalocyanine with a peak absorption coefficient of {approx}10{sup 5} cm{sup -1} at 1000 nm. In contrast to most organic photodiodes, no exciton dissociating material is used. At zero bias, the diodes are inefficient with an external quantum efficiency of {approx} 10{sup -2}. In reverse bias, large gain occurs and is linear with bias voltage above 4V. The observed gain is consistent with a photoconductive gain mechanism.

  20. Post-diagnosis weight gain and breast cancer recurrence in women with early stage breast cancer

    E-Print Network [OSTI]

    2006-01-01

    1996): Nutrition and breast cancer. Cancer Causes Control 7:of premenopausal breast cancer. Cancer Epidemiol.BiomarkersDiagnosis Weight Gain and Breast Cancer Recurrence In Women

  1. Scaling tests with dynamical overlap and rooted staggered fermions

    SciTech Connect (OSTI)

    Duerr, Stephan; Hoelbling, Christian

    2005-03-01

    We present a scaling analysis in the 1-flavor Schwinger model with the full overlap and the rooted staggered determinant. In the latter case the chiral and continuum limit of the scalar condensate do not commute, while for overlap fermions they do. For the topological susceptibility a universal continuum limit is suggested, as is for the partition function and the Leutwyler-Smilga sum rule. In the heavy-quark force no difference is visible even at finite coupling. Finally, a direct comparison between the complete overlap and the rooted staggered determinant yields evidence that their ratio is constant up to O(a{sup 2}) effects.

  2. Gaining Industrial Confidence for the Introduction of Domain-Specific Languages

    E-Print Network [OSTI]

    Hooman, Jozef

    Gaining Industrial Confidence for the Introduction of Domain-Specific Languages Arjan J. Mooij of using DSLs, in the industry there is also some reluctance against their introduction in product development. We address a number of issues that are important to gain industrial confidence

  3. SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: SUMMARY OF PROCEDURES FOR

    E-Print Network [OSTI]

    SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: SUMMARY OF PROCEDURES that with a drastic simplifying assumption these methods can be used to calculate system solar-optical properties and solar heat gain coefficients for arbitrary glazing systems, while requiring limited data about

  4. SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: PROCEDURES FOR ESTIMATING

    E-Print Network [OSTI]

    SOLAR HEAT GAIN THROUGH FENESTRATION SYSTEMS CONTAINING SHADING: PROCEDURES FOR ESTIMATING that with a drastic simplifying assumption these methods can be used to calculate system solar-optical properties and solar heat gain coefficients for arbitrary glazing systems, while requiring limited data about

  5. Low Carbon Footprint and Ultra Low NOx Boilers through Efficiency Gain 

    E-Print Network [OSTI]

    Benz, R,; Staedter, M.

    2008-01-01

    -1 Low Carbon Footprint and Ultra Low NOx Boilers through Efficiency Gain Robert Benz Marcel Staedter President Project Manager... / Low Carbon, Ultra Low NOx through Efficiency Gain where y denotes the mole fraction of excess oxygen. The presence of nitrogen and excess oxygen radicals in this hot combustion environment promotes the formation...

  6. An LED, Fiber-Optic, Gain Monitoring System for a Segmented Scintillator Array

    E-Print Network [OSTI]

    Saskatchewan, University of

    An LED, Fiber-Optic, Gain Monitoring System for a Segmented Scintillator Array B.E. Bewera , R Science Place, Saskatoon, Saskatchewan, Canada, S7N 5E2 Abstract A gain monitoring system, which uses with a segmented, liquid scintillator neutron detector array. The system is designed to track neutron detector cell

  7. Dynamical mechanisms underlying contrast gain control in single neurons Yuguo Yu and Tai Sing Lee

    E-Print Network [OSTI]

    Lee, Tai Sing

    to be adaptive to changes in the statistics of stimuli, in terms of both the average light intensity level see 3, they are adaptive to the contrast or the variance of time- varying input stimuli, exhibiting a contrast gain control threshold is shown to be a key factor underlying the adaptation of frequency tuning and amplitude gain

  8. Optical gain from the direct gap transition of Ge-on-Si at room temperature

    E-Print Network [OSTI]

    Liu, Jifeng

    We report direct band gap optical gain of tensile strained n+ epitaxial Ge-on-Si at room temperature, which confirms that band-engineered Ge-on-Si is a promising gain medium for monolithic optical amplifiers and lasers on Si.

  9. THE INTEGRAL EQUATION FOR A HIGH GAIN FEL N. A. Vinokurov *

    E-Print Network [OSTI]

    Kemner, Ken

    1 THE INTEGRAL EQUATION FOR A HIGH GAIN FEL N. A. Vinokurov * Introduction The theory of a high gain free electron laser (FEL) is now well developed (e.g., see [1]). In this paper I derive the equation for the electron distribution function, which is valid for FELs with a longitudinally

  10. HIGH GAIN FEL AMPLIFICATION OF CHARGE MODULATION CAUSED BY A HADRON *

    E-Print Network [OSTI]

    HIGH GAIN FEL AMPLIFICATION OF CHARGE MODULATION CAUSED BY A HADRON * Vladimir N. Litvinenko in a high gain FEL. The resulting amplified modulation of electron beam, its shape, form and its lethargy]). We also discuss the influence of the electron beam parameters on the FEL response. INTRODUCTION

  11. Gain-scheduling control of port-fuel-injection processes Andrew White a

    E-Print Network [OSTI]

    Choi, Jongeun

    of gasoline PFI and ethanol DI dual-fuel system to substantially increase gasoline engine efficiencyGain-scheduling control of port-fuel-injection processes Andrew White a , Jongeun Choi a,b,Ã, Ryozo: Engine control Port fuel injection Gain-scheduling control Linear parameter varying system LMI

  12. Gain-scheduled `1 -optimal control for boiler-turbine dynamics

    E-Print Network [OSTI]

    Shamma, Jeff S.

    Gain-scheduled `1 -optimal control for boiler-turbine dynamics with actuator saturation Pang; accepted 2 June 2003 Abstract This paper presents a gain-scheduled approach for boiler-turbine controller the magnitude and rate saturation constraints on actuators. The nonlinear boiler-turbine dynamics is brought

  13. A low power, high dynamic-range, broadband variable gain amplifier for an ultra wideband receiver 

    E-Print Network [OSTI]

    Chen, Lin

    2007-09-17

    is designed for high frequency and low power communication applications, such as an Ultra Wideband (UWB) receiver system. The gain can be programmed from 0dB to 42dB in 2dB increments with -3dB bandwidth greater than 425MHz for the entire range of gain. The 3...

  14. 83USDA Forest Service Gen. Tech. Rep. PSW-GTR-160. 1997. Woody Root Biomass of 40-to 90-

    E-Print Network [OSTI]

    83USDA Forest Service Gen. Tech. Rep. PSW-GTR-160. 1997. Woody Root Biomass of 40- to 90- Year. Bledsoe2 Jerry Tecklin3 Abstract: This research examined biomass of blue oak (Quercus douglasii Hook root biomass outside the root ball. Root ball mass ranged from 7 to 184 kg, and estimated total root

  15. Original article Biomass of root and shoot systems

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Original article Biomass of root and shoot systems of Quercus coccifera shrublands in Eastern Spain biomass of kermes oak shrublands (Quercus coccifera L.), an evergreen sclerophyllous species common- mass has been measured on 320 1-m2 plots. Total biomass varies with age and ranges between 0.4 (7

  16. Doctoral Defense "Upscaling microscopic root water uptake to

    E-Print Network [OSTI]

    Kamat, Vineet R.

    , vegetation plays a central role in the land surface energy balance in terms of transpiration through in errors to the modeled mean water and energy fluxes. Aimed to improve the predictive capability of land in many regions around the world, this better understanding and numerical representation of plant root

  17. Groups in Mind: The Coalitional Roots o[War and

    E-Print Network [OSTI]

    Cosmides, Leda

    8 Groups in Mind: The Coalitional Roots o[War and Morality John Tooby and Leda Cosmides War, Coalitions, and the HUnlan Condition War is older than the human species. It is found in every region. There is no evidence of it having originated in one place, and spread by contact to others. War is reflected

  18. Kronecker Square Roots and The Block vec Matrix

    E-Print Network [OSTI]

    Ignacio Ojeda

    2013-11-09

    Using the block vec matrix, I give a necessary and sufficient condition for factorization of a matrix into the Kronecker product of two other matrices. As a consequence, I obtain an elementary algorithmic procedure to decide whether a matrix has a square root for the Kronecker product.

  19. Guidelines on Hardware-Rooted Security in Mobile

    E-Print Network [OSTI]

    Guidelines on Hardware- Rooted Security in Mobile Devices (Draft) Recommendationsof the National Franklin Andrew Regenscheid Computer Security Division Information Technology Laboratory National Institute for the cost-effective security and privacy of other than national security-related information in Federal

  20. Water Flow Through Geotextiles Used to Support the Root Zone of Turfgrass on Sports Fields 

    E-Print Network [OSTI]

    Rose-Harvey, Keisha M.

    2010-01-14

    A sports field construction method that uses a geotextile to support the root zone atop a synthetic drainage structure is an alternative to the common design that uses gravel drainage material to support the root zone. A study was conducted...

  1. Fine root dynamics along an elevational gradient in tropical Amazonian and Andean forests

    E-Print Network [OSTI]

    Malhi, Yadvinder

    synchronised to seasonality of solar radiation. Finally, we provide the first insights into root growth-level productivity is limited. To date, studies from only three elevational transects have provided data on fine root

  2. Gas Composition and Oxygen Supply in the Root Environment of Substrates in Closed Hydroponic Systems

    E-Print Network [OSTI]

    Lieth, J. Heinrich

    299 Gas Composition and Oxygen Supply in the Root Environment of Substrates in Closed Hydroponic Abstract The objective of this study was to get more information about the root zone, mainly the gas and ethylene, a gas sampling system was used to get gas samples from the root zone. CO2 gas samples of 20 ml

  3. Day et al.: Deep Structural Roots in Urban Trees 2009 International Society of Arboriculture

    E-Print Network [OSTI]

    Virginia Tech

    when root collars are as little as 7.5 cm (3 in) deep. In some cases, deep structural roots trees respond to being located abnormally deep in the soil profile. This condition is widespread among), or is compacted (Day et al. 2001). Planting trees too deep with their root collars below soil grade can thus

  4. INVERSIONS OF INTEGRAL OPERATORS AND ELLIPTIC BETA INTEGRALS ON ROOT SYSTEMS

    E-Print Network [OSTI]

    Warnaar, Ole

    INVERSIONS OF INTEGRAL OPERATORS AND ELLIPTIC BETA INTEGRALS ON ROOT SYSTEMS VYACHESLAV P- metric integrals associated to a pair of root systems. Using the (A,C) inversion formula to invert one of the known C-type elliptic beta integrals, we obtain a new elliptic beta integral for the root system of type

  5. The matrix square root from a new functional perspective: theoretical results and

    E-Print Network [OSTI]

    Meini, Beatrice

    The matrix square root from a new functional perspective: theoretical results and computational issues Beatrice Meini #3; Abstract We give a new characterization of the matrix square root and a new algorithm for its computation. We show how the matrix square root is related to the constant block coe

  6. In vitro detection and quantification of enamel and root caries using infrared photothermal radiometry and

    E-Print Network [OSTI]

    Mandelis, Andreas

    78229 Abstract. Artificially created demineralized and remineralized cari- ous lesions on the root, spanning root to enamel, using a lactic acid-based acidified gel to demineralize the tooth sur- face days of remineralization. Ten-day 5 on root demineralized samples were remineralized. After completing

  7. Stable gain-switched thulium fiber laser with 140 nm tuning range

    E-Print Network [OSTI]

    Wang, Fengqiu; Kelleher, Edmund; Guo, Guoxiang; Li, Yao; Xu, Yongbing; Zhu, Shining

    2015-01-01

    We demonstrate a gain-switched thulium fiber laser that can be continuously tuned over 140 nm, while maintaining stable nanosecond single-pulse operation. To the best of our knowledge, this system represents the broadest tuning range for a gain-switched fiber laser. The system simplicity and wideband wavelength tunability combined with the ability to control the temporal characteristics of the gain-switched pulses mean this is a versatile source highly suited to a wide range of applications in the eye-safe region of the infrared, including spectroscopy, sensing and material processing, as well as being a practical seed source for pumping nonlinear processes.

  8. Certified counting of roots of random univariate polynomials

    E-Print Network [OSTI]

    Joseph Cleveland; Jeffrey Dzugan; Jonathan D. Hauenstein; Ian Haywood; Dhagash Mehta; Anthony Morse; Leonardo Robol; Taylor Schlenk

    2014-12-04

    A challenging problem in computational mathematics is to compute roots of a high-degree univariate random polynomial. We combine an efficient multiprecision implementation for solving high-degree random polynomials with two certification methods, namely Smale's $\\alpha$-theory and one based on Gerschgorin's theorem, for showing that a given numerical approximation is in the quadratic convergence region of Newton's method of some exact solution. With this combination, we can certifiably count the number of real roots of random polynomials. We quantify the difference between the two certification procedures and list the salient features of both of them. After benchmarking on random polynomials where the coefficients are drawn from the Gaussian distribution, we obtain novel experimental results for the Cauchy distribution case.

  9. Druid, displaying root module used for linear collider detectors

    E-Print Network [OSTI]

    Ruan, M

    2015-01-01

    Based on the ROOT TEve/TGeo classes and the standard linear collider data structure, a dedicated linear collider event display has been developed. It supports the latest detector models for both International Linear Collider and Compact Linear Collider as well as the CALICE test beam prototypes. It can be used to visualise event information at the generation, simulation and reconstruction levels. Many options are provided in an intuitive interface. It has been heavily employed in a variety of analyses.

  10. Large inherent optical gain from the direct gap transition of Ge thin films

    E-Print Network [OSTI]

    Wang, Xiaoxin

    The recent demonstration of Ge-on-Si diode lasers renews the interest in the unique carrier dynamics of Ge involving both direct (?) and indirect (L) valleys. Here, we report a large inherent direct gap optical gain ...

  11. Duct Systems in large commercial buildings: Physical characterization, air leakage, and heat conduction gains

    E-Print Network [OSTI]

    Fisk, W.J.

    2011-01-01

    LBNL-42339 Duct Systems in Large Commercial Buildings:and conduction heat gains of duct systems. Different methodscompared. ELAs-of supply ducts ranged from 0.4 to 2.0 cm 2

  12. Apostles and brigadistas : industrial transformation with social gains in two Central American agro-industries

    E-Print Network [OSTI]

    Fuentes, Alberto (Alberto Jose)

    2014-01-01

    This dissertation offers an ideational account of the industrial transformation with social gains of two Central American agro-industries during the 1980s and 1990s, the Guatemalan sugar and Nicaraguan cheese industries. ...

  13. DOE Program Offers Participants Unique Opportunity to Gain Carbon Capture and Storage Knowledge

    Broader source: Energy.gov [DOE]

    Future leaders and innovators in the area of carbon capture and storage can gain a unique and intensive tutorial on the subject by participating in the U.S. Department of Energy’s Research Experience in Carbon Sequestration program.

  14. Spatially Similar Practice Immediately Following Motor Sequence Learning Eliminates Offline Gains 

    E-Print Network [OSTI]

    Handa, Atul

    2012-11-30

    Robust offline performance gains, beyond those that would be anticipated by being exposed to additional physical practice, have been reported during procedural learning. However, practice of unrelated procedural task ...

  15. The impact of personal gains and losses on social identification processes 

    E-Print Network [OSTI]

    Iuzzini, Jonathan Lawrence

    1998-01-01

    This thesis integrates a number of social ge Micrographics. psychological principles to study individual-level benefit (gain) and discrimination (loss) in a group setting. Using a variation of the minimal group paradigm, participants were assigned...

  16. High Gain Transformerless DC-DC Converters for Renewable Energy Sources 

    E-Print Network [OSTI]

    Denniston, Nicholas Aaron

    2011-08-08

    Renewable energy sources including photovoltaic cells, fuel cells, and wind turbines require converters with high voltage gain in order to interface with power transmission and distribution networks. These conversions are conventionally made using...

  17. Optical gain and lasing from band-engineered Ge-on-Si at room temperature

    E-Print Network [OSTI]

    Liu, Jifeng

    We present theoretical modeling and experimental results of optical gain and lasing from tensile-strained, n[superscript +] Ge-on-Si at room temperature. Compatible with silicon CMOS, these devices are ideal for large-scale ...

  18. Oscillator Seeding of a High Gain Harmonic Generation FEL in a Radiator-First Configuration

    E-Print Network [OSTI]

    Gandhi, P.

    2014-01-01

    Proceedings of the 2010 FEL Conference, Malm¨o, Sweden,Proceedings of the 2010 FEL Conference, Malm¨o, Sweden,of a high gain harmonic generation FEL in a radiator-first

  19. Loss-Gain Equalized Reconfigurable Phaser for Dynamic Radio Analog Signal Processing (R-ASP)

    E-Print Network [OSTI]

    Zou, Lianfeng; Caloz, Christophe

    2015-01-01

    We present a loss-gain equalized reconfigurable phaser for dynamic radio analog signal processing (R-ASP). Such a phaser provides real-time tunable group delay response with all-pass transmission. We propose a lumped loss-gain implementation, where tuning and equalization are mostly easily achieved. A theoretical study derives the transfer function and the fundamental characteristics of the device. The phaser is finally experimentally demonstrated, first using a single loss-gain pair and finally a three cascaded loss-gain pair structure with full reconfigurability , where up-chirp and down-chirp group delays are shown for illustration. It is expected that this phaser will find wide applications in radio analog signal processing (R-ASP) systems requiring dynamic adaptability.

  20. CMOS Photodiodes with Substrate Openings for Higher Conversion Gain in Active Pixel Sensors

    E-Print Network [OSTI]

    Hornsey, Richard

    . Lee, R. I. Hornsey Dept. of Electrical and Computer Engineering, University of Waterloo, Ontario by a source-follower; the capacitance of the device determines the conversion gain. In the case of CMOS active

  1. Complexity within the Air Force acquisition system gaining insight from a theory of collapse

    E-Print Network [OSTI]

    Marticello, Daniel Nicholas, Jr

    2012-01-01

    Joseph Tainter's theory of societal collapse is applied in an examination of the U.S. Air Force's aircraft acquisition system in order to gain insight into the enterprise's lagging performance. Theories of collapse at both ...

  2. NREL: News - NREL Solar Research Gains Two R&D 100 Awards

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

    Research Gains Two R&D 100 Awards July 17, 2008 An ultra-light, highly efficient solar cell and use of ink-jet printing to manufacture thin-film photovoltaics-both developed at...

  3. Gain media edge treatment to suppress amplified spontaneous emission in a high power laser

    DOE Patents [OSTI]

    Hackel, Lloyd A. (Livermore, CA); Soules, Thomas F. (Livermore, CA); Fochs, Scott N. (Livermore, CA); Rotter, Mark D. (San Ramon, CA); Letts, Stephan A. (San Ramon, CA)

    2011-02-22

    A novel method and apparatus for suppressing ASE and/or parasitic oscillation modes in a laser is introduced. By roughening one or more peripheral edges of a solid-state crystal or ceramic laser gain media and by bonding such edges to a predetermined electromagnetic absorbing material arranged adjacent to the entire outer surface of the peripheral edges of the roughened laser gain media, ASE, parasitic oscillation modes and/or residual pump energy can be effectively suppressed.

  4. A circuit for gain measurement of frequency referenced digitally self tuned filters 

    E-Print Network [OSTI]

    Cook, Robert Wake

    1985-01-01

    A CIRCUIT FOR GAIN MEASUREMENT OF FREQUENCY REFERENCED DIGITALLY SELF TUNED FILTERS A Thesis by ROBERT WAKE COOK Submitted to the Graduate College of Texas ASSAM University in partial fulfillment of the requirement for the degree of MASTER... OF SCIENCE December 1985 Major Subject: Electrical Engineering A CIRCUIT FOR GAIN MEASUREMENT OF FREQUENCY REFERENCED DIGITALLY SELF TUNED FILTERS A Thesis bv ROl3ERT WAKE COOK Approved as to style and content by: Dr. Randal! L. Geiger (Chairman...

  5. Temperature dependent gain of the atomic xenon laser Gregory A. Hebne?)

    E-Print Network [OSTI]

    Kushner, Mark

    Temperature dependent gain of the atomic xenon laser Gregory A. Hebne?) Sandia National(3/2),-6p(5/2),] and 2.03 pm [5d(3/2)t- 6p( 3/2) t] atomic xenon transitions for gas temperatures/Xe, He/Ar/Xe, and Ne/Ar/Xe gas mixtures at a pump power of 8 W/cm3. For constant gas density, the gain

  6. Tuning gain and bandwidth of traveling wave tubes using metamaterial beam-wave interaction structures

    SciTech Connect (OSTI)

    Lipton, Robert Polizzi, Anthony

    2014-10-14

    We employ metamaterial beam-wave interaction structures for tuning the gain and bandwidth of short traveling wave tubes. The interaction structures are made from metal rings of uniform cross section, which are periodically deployed along the length of the traveling wave tube. The aspect ratio of the ring cross sections is adjusted to control both gain and bandwidth. The frequency of operation is controlled by the filling fraction of the ring cross section with respect to the size of the period cell.

  7. Hot-pressed ceramic Cr2+ :ZnSe gain-switched

    E-Print Network [OSTI]

    Mirov, Sergey B.

    Hot-pressed ceramic Cr2+ :ZnSe gain-switched laser A. Gallian, V. V. Fedorov, and S. B. Mirov: The technology of hot-pressed Cr2+ :ZnSe ceramic preparation is reported. Comparative gain-switched lasing of hot­pressed ceramic and CVD grown Cr2+ :ZnSe samples with slope efficiencies up to 10 % and output energies up to 2 m

  8. Gain media edge treatment to suppress amplified spontaneous emission in a high power laser

    DOE Patents [OSTI]

    Hackel, Lloyd A. (Livermore, CA); Soules, Thomas F. (Livermore, CA); Fochs, Scott N. (Livermore, CA); Rotter, Mark D. (San Ramon, CA); Letts, Stephan A. (San Ramon, CA)

    2008-12-09

    A novel method and apparatus for suppressing ASE and parasitic oscillation modes in a high average power laser is introduced. By roughening one or more peripheral edges of a solid-state crystal or ceramic laser gain media and by bonding such edges using a substantially high index bonding elastomer or epoxy to a predetermined electromagnetic absorbing arranged adjacent to the entire outer surface of the peripheral edges of the roughened laser gain media, ASE and parasitic oscillation modes can be effectively suppressed.

  9. Root interaction between Bromud tectorum and Poa pratensis: a three-dimensional analysis

    SciTech Connect (OSTI)

    Bookman, P.A.; Mack, R.N.

    1982-06-01

    The spatial distribution of roots of two alien grasses, Bromus tectorum and Poa pratensis, grown singly and in a mixture, was examined using a double-labelling radioisotope technique. Interactions between the root systems of these plants led to a restricted B. tectorum rooting volume in P. pratensis neighborhoods greater than or equal to30-d-old. The roots of B. tectorum failed to develop laterally. The altered B. tectorum root systems may contribute to its inability to persist in established P. pratensis swards.

  10. Digging deeper: Fine root responses to rising atmospheric [CO2] in forested ecosystems

    SciTech Connect (OSTI)

    Iversen, Colleen M [ORNL

    2010-01-01

    Experimental evidence from a diverse set of forested ecosystems indicates that CO2 enrichment may lead to deeper rooting distributions. While the causes of greater root production at deeper soil depths under elevated CO2 concentration ([CO2]) require further investigation, altered rooting distributions are expected to affect important ecosystem processes. The depth at which fine roots are produced may influence root chemistry, physiological function, and mycorrhizal infection, leading to altered nitrogen (N) uptake rates and slower turnover. Also, soil processes such as microbial decomposition are slowed at depth in the soil, potentially affecting the rate at which root detritus becomes incorporated into soil organic matter. Deeper rooting distributions under elevated [CO2] provide exciting opportunities to use novel sensors and chemical analyses throughout the soil profile to track the effects of root proliferation on carbon (C) and N cycling. Models do not currently incorporate information on root turnover and C and N cycling at depth in the soil, and modification is necessary to accurately represent processes associated with altered rooting depth distributions. Progress in understanding and modeling the interface between deeper rooting distributions under elevated [CO2] and soil C and N cycling will be critical in projecting the sustainability of forest responses to rising atmospheric [CO2].

  11. Simple Formula for the Optimization of the FEL Gain Length Including the Effects of Emittance, Betatron Oscillations and Energy Spread

    E-Print Network [OSTI]

    Chin, Y.H.

    2011-01-01

    for a quick estimate of the FEL parameters which minimizefor the Optimization of the FEL Gain Length Including thet h e Optimization o f the FEL Gain Length Including t h e

  12. Performance of slash pine (Pinus elliottii Engelm.) containerized rooted cuttings and bare-root seedlings established on five planting dates in the flatlands of western Louisiana 

    E-Print Network [OSTI]

    Akgul, Alper

    2005-08-29

    -root seedlings (BRS) and containerized rooted cuttings (CRC) were hand planted in September, November, January, March and April in three consecutive planting seasons (2000-2001, 2001-2002 and 2002-2003) on three sites with silt loam topsoils in southwestern...

  13. CO2 enrichment increases carbon and nitrogen input from fine roots in a deciduous forestinput from fine roots in a deciduous forest

    E-Print Network [OSTI]

    Post, Wilfred M.

    CO2 enrichment increases carbon and nitrogen input from fine roots in a deciduous forestinput from fine roots in a deciduous forest · We assessed the effect of elevated [CO2] Contact: Richard J. Norby Research We assessed the effect of elevated [CO2] on production and mortality of short-lived fine

  14. Gaining momentum

    SciTech Connect (OSTI)

    Burr, M.T.

    1995-10-01

    Few regions of the world exemplify the variety of approaches to power sector reform as thoroughly as Latin America. At one end of the spectrum stands Chile, which has successfully restructured its electric power industry, privatizing a large share of its formerly state-owned utility assets. Of all power markets in Latin America, Chile`s is the most open to private developers, with transparent pricing policies and competitive procurement procedures. At the other end of the spectrum, Venezuela`s privatization program has stalled, and the power market has become less accessible to private investment than before the current administration was elected. Many Latin American countries share some important challenges. First, a lack of credit worthiness among electric utilities makes it difficult to finance power projects that rely on long-term power sales agreements. Second, lingering fallout from Mexico`s financial crisis continues to affect commercial lenders` confidence in Latin America in general. Third, efforts at privatization and power market liberalization have proceeded in fits and starts, with some countries seeming to take as many steps backwards as forward. Nevertheless, Latin America remains one of the most attractive regions of the world for independent power development. This paper examines recent developments in key markets.

  15. Benzo[a]pyrene co-metabolism in the presence of plant root extracts and exudates: Implications

    E-Print Network [OSTI]

    Alvarez, Pedro J.

    and energy source. Plant root extracts of osage orange (Maclura pomifera), hybrid willow (Salix alba

  16. On the fourth root prescription for dynamical staggered fermions

    E-Print Network [OSTI]

    David H. Adams

    2005-10-27

    With the aim of resolving theoretical issues associated with the fourth root prescription for dynamical staggered fermions in Lattice QCD simulations, we consider the problem of finding a viable lattice Dirac operator D such that (det D_{staggered})^{1/4} = det D. Working in the flavour field representation we show that in the free field case there is a simple and natural candidate D satisfying this relation, and we show that it has acceptable locality behavior: exponentially local with localisation range vanishing ~ (a/m)^{1/2} for lattice spacing a -> 0. Prospects for the interacting case are also discussed, although we do not solve this case here.

  17. Root responses of Tifway bermudagrass to nitrogen application rates 

    E-Print Network [OSTI]

    Gilstrap, David Murphy

    1992-01-01

    both soil-nitrate utilization and water-use efficiency. Texas turfgrass specialists recommend that one-time applications of water soluble N not exceed 49 kg N/ha (1 lb N/1, 000 ft'); this recommendation is supported mainly by cool-season turfgrass... research. This field study was conducted to assess root growth following ammonium nitrate fertilization. Seven N rates (0, 24, 49, 73, 98, 146, and 195 kg N/ha) in four replications were applied once to established Tifway bermudagrass grown on a...

  18. Design and Fabrication of an Optimum Peripheral Region for Low Gain Avalanche Detectors

    E-Print Network [OSTI]

    Fernandez-Martinez, Pablo; Hidalgo, Salvador; Greco, Virginia; Merlos, Angel; Pellegrini, Giulio; Quirion, David

    2015-01-01

    Low Gain Avalanche Detectors (LGAD) represent a remarkable advance in high energy particle detection, since they provide a moderate increase (gain ~10) of the collected charge, thus leading to a notable improvement of the signal-to-noise ratio, which largely extends the possible application of Silicon detectors beyond their present working field. The optimum detection performance requires a careful implementation of the multiplication junction, in order to obtain the desired gain on the read out signal, but also a proper design of the edge termination and the peripheral region, which prevents the LGAD detectors from premature breakdown and large leakage current. This work deals with the critical technological aspects when optimising the LGAD structure. The impact of several design strategies for the device periphery is evaluated with the aid of TCAD simulations, and compared with the experimental results obtained from the first LGAD prototypes fabricated at the IMB-CNM clean room. Solutions for the peripheral...

  19. Building accurate initial models using gain functions for waveform inversion in the Laplace domain

    E-Print Network [OSTI]

    Wansoo Ha; Changsoo Shin

    2014-08-20

    We suggest an initial model building technique using time gain functions in the Laplace domain. Applying the gain expressed as a power of time is equivalent to taking the partial derivative of the Laplace-domain wavefield with respect to a damping constant. We construct an objective function, which minimizes the logarithmic differences between the gained field data and the partial derivative of the modeled data with respect to the damping constant. We calculate the modeled wavefield, the partial derivative wavefield, and the gradient direction in the Laplace domain using the analytic Green's function starting from a constant velocity model. This is an efficient method to generate an accurate initial model for a following Laplace-domain inversion. Numerical examples using two marine field datasets confirm that a starting model updated once from a scratch using the gradient direction calculated with the proposed method can be successfully used for a subsequent Laplace-domain inversion.

  20. Microscopic model for intersubband gain from electrically pumped quantum-dot structures

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

    Michael, Stephan; Chow, Weng Wah; Schneider, Han Christian

    2014-10-03

    We study theoretically the performance of electrically pumped self-organized quantum dots as a gain material in the mid-IR range at room temperature. We analyze an AlGaAs/InGaAs based structure composed of dots-in-a-well sandwiched between two quantum wells. We numerically analyze a comprehensive model by combining a many-particle approach for electronic dynamics with a realistic modeling of the electronic states in the whole structure. We investigate the gain both for quasi-equilibrium conditions and current injection. Comparing different structures, we find that steady-state gain can only be realized by an efficient extraction process, which prevents an accumulation of electrons in continuum states, thatmore »make the available scattering pathways through the quantum dot active region too fast to sustain inversion.« less

  1. Adaptive fuzzy dynamic surface control for the chaotic permanent magnet synchronous motor using Nussbaum gain

    SciTech Connect (OSTI)

    Luo, Shaohua [School of Automation, Chongqing University, Chongqing 400044, China and College of Mechanical Engineering, Hunan University of Arts and Science, Hunan 415000 (China)

    2014-09-01

    This paper is concerned with the problem of adaptive fuzzy dynamic surface control (DSC) for the permanent magnet synchronous motor (PMSM) system with chaotic behavior, disturbance and unknown control gain and parameters. Nussbaum gain is adopted to cope with the situation that the control gain is unknown. And the unknown items can be estimated by fuzzy logic system. The proposed controller guarantees that all the signals in the closed-loop system are bounded and the system output eventually converges to a small neighborhood of the desired reference signal. Finally, the numerical simulations indicate that the proposed scheme can suppress the chaos of PMSM and show the effectiveness and robustness of the proposed method.

  2. Fuel Cycle Analysis Framework Base Cases for the IAEA/INPRO GAINS Collaborative Project

    SciTech Connect (OSTI)

    Brent Dixon

    2012-09-01

    Thirteen countries participated in the Collaborative Project GAINS “Global Architecture of Innovative Nuclear Energy Systems Based on Thermal and Fast Reactors Including a Closed Fuel Cycle”, which was the primary activity within the IAEA/INPRO Program Area B: “Global Vision on Sustainable Nuclear Energy” for the last three years. The overall objective of GAINS was to develop a standard framework for assessing future nuclear energy systems taking into account sustainable development, and to validate results through sample analyses. This paper details the eight scenarios that constitute the GAINS framework base cases for analysis of the transition to future innovative nuclear energy systems. The framework base cases provide a reference for users of the framework to start from in developing and assessing their own alternate systems. Each base case is described along with performance results against the GAINS sustainability evaluation metrics. The eight cases include four using a moderate growth projection and four using a high growth projection for global nuclear electricity generation through 2100. The cases are divided into two sets, addressing homogeneous and heterogeneous scenarios developed by GAINS to model global fuel cycle strategies. The heterogeneous world scenario considers three separate nuclear groups based on their fuel cycle strategies, with non-synergistic and synergistic cases. The framework base case analyses results show the impact of these different fuel cycle strategies while providing references for future users of the GAINS framework. A large number of scenario alterations are possible and can be used to assess different strategies, different technologies, and different assumptions about possible futures of nuclear power. Results can be compared to the framework base cases to assess where these alternate cases perform differently versus the sustainability indicators.

  3. QED for fields obeying a square root operator equation

    E-Print Network [OSTI]

    Tobias Gleim

    2008-02-25

    Instead of using local field equations - like the Dirac equation for spin-1/2 and the Klein-Gordon equation for spin-0 particles - one could try to use non-local field equations in order to describe scattering processes. The latter equations can be obtained by means of the relativistic energy together with the correspondence principle, resulting in equations with a square root operator. By coupling them to an electromagnetic field and expanding the square root (and taking into account terms of quadratic order in the electromagnetic coupling constant e), it is possible to calculate scattering matrix elements within the framework of quantum electrodynamics, e.g. like those for Compton scattering or for the scattering of two identical particles. This will be done here for the scalar case. These results are then compared with the corresponding ones based on the Klein-Gordon equation. A proposal of how to transfer these reflections to the spin-1/2 case is also presented.

  4. Dynamic power balance for nonlinear waves in unbalanced gain and loss landscapes

    E-Print Network [OSTI]

    Kominis, Yannis

    2015-01-01

    The presence of losses in nonlinear photonic structures is a crucial issue for modern applications. Active parts are introduced for wave power compensation resulting in unbalanced gain and loss landscapes where localized beam propagation is, in general, dynamically unstable. Here we provide generic sufficient conditions for the relation between the gain-loss and the refractive index profiles in order to ensure efficient wave trapping and stable propagation for a wide range of beam launching conditions such as initial power, angle of incidence and position. The stability is a consequence of an underlying dynamic power balance mechanism related to a conserved quantity of wave dynamics.

  5. High Average Power Laser Gain Medium With Low Optical Distortion Using A Transverse Flowing Liquid Host

    DOE Patents [OSTI]

    Comaskey, Brian J. (Walnut Creek, CA); Ault, Earl R. (Livermore, CA); Kuklo, Thomas C. (Oakdale, CA)

    2005-07-05

    A high average power, low optical distortion laser gain media is based on a flowing liquid media. A diode laser pumping device with tailored irradiance excites the laser active atom, ion or molecule within the liquid media. A laser active component of the liquid media exhibits energy storage times longer than or comparable to the thermal optical response time of the liquid. A circulation system that provides a closed loop for mixing and circulating the lasing liquid into and out of the optical cavity includes a pump, a diffuser, and a heat exchanger. A liquid flow gain cell includes flow straighteners and flow channel compression.

  6. FEL and Optical Klystron Gain for an Electron Beam with Oscillatory Energy Distribution

    SciTech Connect (OSTI)

    Stupakov, G.; Ding, Y.; Huang, Z.; /SLAC

    2009-12-09

    If the energy spread of a beam is larger then the Pierce parameter, the FEL gain length increases dramatically and the FEL output gets suppressed. We show that if the energy distribution of such a beam is made oscillatory on a small scale, the gain length can be considerably decreased. Such an oscillatory energy distribution is generated by first modulating the beam energy with a laser via the mechanism of inverse FEL, and then sending it through a strong chicane. We show that this approach also works for the optical klystron enhancement scheme. Our analytical results are corroborated by numerical simulations.

  7. Supraoptimal root-zone temperature effects on water use of three Cercis spp 

    E-Print Network [OSTI]

    Lawrence, Beth Jez

    1993-01-01

    Committee: Dr. Jayne M. Zajicek Stem flow rates of three Cercis spp. exposed to supraoptimal root- zone temperatures were characterized in a controlled environment chamber using a water bath to maintain treatment temperatures. Flow rates of sap... in the xylem were measured every 15 sec and averaged over 15 min intervals. Sap flow measurements were correlated to root-zone temperatures recorded during the same time intervals. Whole plant transpiration was also measured gravimetrically. Root...

  8. Plant Root Characteristics and Dynamics in Arctic Tundra Ecosystems, 1960-2012

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

    Sullivan, Paddy; Sloan, Victoria; Warren, Jeff; McGuire, Dave; Euskirchen, Eugenie; Norby, Richard; Iversen, Colleen; Walker, Anthony; Wullschleger, Stan

    A synthesis of the available literature on tundra root distribution and dynamics, and their role in key ecosystem processes in the Arctic.

  9. Supersonic Air Jets Preserve Tree Roots in Underground Pipeline Installation1

    E-Print Network [OSTI]

    Supersonic Air Jets Preserve Tree Roots in Underground Pipeline Installation1 Rob Gross 2 trenching operations for pipeline installation. Although mechanical soil excavation using heavy equipment

  10. Plant Root Characteristics and Dynamics in Arctic Tundra Ecosystems, 1960-2012

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

    Sullivan, Paddy; Sloan, Victoria; Warren, Jeff; McGuire, Dave; Euskirchen, Eugenie; Norby, Richard; Iversen, Colleen; Walker, Anthony; Wullschleger, Stan

    2014-01-13

    A synthesis of the available literature on tundra root distribution and dynamics, and their role in key ecosystem processes in the Arctic.

  11. Sub-Poissonian shot noise of a high internal gain injection photon detector

    E-Print Network [OSTI]

    Mohseni, Hooman

    Jin,2 and Ilesanmi Adesida2 1 Bio-Inspired Sensors and Optoelectronics Laboratory, Dept. of Electrical.northwestern.edu Abstract: The noise performance of an infrared injection photon detector with very high internal gain was evaluated. The optical to electrical conversion factor and Fano factor were measured under increasing

  12. Effects of dietary calcium and cholecalciferol on weight gain and mineral composition of the blue tilapia 

    E-Print Network [OSTI]

    O'Connell, John Patrick

    1993-01-01

    .09 g in 38-1 aquaria receiving water with 0.1 mg Ca/l for a period of 36 weeks. Significantly (P < 0.05) greater weight gain, bone and scale calcium, as well as bone and scale phosphorus values were observed for fish fed the calciumsupplemented diets...

  13. Efficacies of dexfenfluramine and fluoxetine in preventing weight gain after smoking cessation 1-4

    E-Print Network [OSTI]

    Wurtman, Richard

    in metabolism and energy intake both appear to change energy balance. Some findings suggest that quitting metabolic rate (9), Heightened energy intake probably makes a larger contribution to weight gain, because energy intake increases by "'627-1463 kJ (150-350 kcal)/d after smoking cessation (I, 10-12). Energy

  14. Mobile Agent Gain Scheduler Control in Inter-Continental Intelligent Space

    E-Print Network [OSTI]

    Chow, Mo-Yuen

    other to provide intelligent services to inhabitants [1, 3]. The mobile agents have sensors andMobile Agent Gain Scheduler Control in Inter-Continental Intelligent Space Rangsarit - Intelligent Space (iSpace) is a space (room, corridor, or street), which has distributed sensory and mobile

  15. Switching Stabilization and l2 Gain Performance Controller Synthesis for Discrete-Time Switched Linear Systems

    E-Print Network [OSTI]

    Antsaklis, Panos

    Switching Stabilization and l2 Gain Performance Controller Synthesis for Discrete-Time Switched Linear Systems Hai Lin and Panos J. Antsaklis Abstract-- In this paper, the switching controller synthesis problem for a class of discrete-time switched linear systems is considered. In particular, a state

  16. Brain Tissue Volume Changes Following Weight Gain in Adults with Anorexia Nervosa

    E-Print Network [OSTI]

    Brain Tissue Volume Changes Following Weight Gain in Adults with Anorexia Nervosa Christina A Disord 2011; 44:406­411) Introduction Anorexia nervosa (AN) is a serious psychiatric ill- ness, MD3 ABSTRACT Objective: To measure brain volume deficits among underweight patients with anorexia

  17. Canopy Carbon Gain and Water Use: Analysis of Old-growth Conifers in

    E-Print Network [OSTI]

    structure, species composition, and climate. Key words: biogenic carbon emissions; canopy processes; forest;to the global challenge of increasing atmospheric carbon dioxide (CO2). One approach for predictingCanopy Carbon Gain and Water Use: Analysis of Old-growth Conifers in the Pacific Northwest William

  18. Modeling Sleep Mode Gains in Energy-Aware Networks $ Luca Chiaraviglioa

    E-Print Network [OSTI]

    simulations, we consider simple models of networks in which devices (i.e., nodes and links) consume energy not consume energy propor- tionally to the work they sustain, but they consume much even when they are underModeling Sleep Mode Gains in Energy-Aware Networks $ Luca Chiaraviglioa , Delia Ciullob , Marco

  19. An ultra-low voltage high gain operational transconductance amplifier for biomedical

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    An ultra-low voltage high gain operational transconductance amplifier for biomedical applications that work at ultra low voltage power supply. Moreover, low power dissipation is essential in these systems dissipation is also proposed in [5]. Differential pairs are commonly used as input stages, in an ultra-low

  20. An Active Gain-control System for Avalanche Photo-Diodes under Moderate Temperature Variations

    E-Print Network [OSTI]

    J. Kataoka; R. Sato; T. Ikagawa; J. Kotoku; Y. Kuramoto; Y. Tsubuku; T. Saito; Y. Yatsu; N. Kawai; Y. Ishikawa; N. Kawabata

    2006-02-17

    Avalanche photodiodes (APDs) are promising light sensor for various fields of experimental physics. It has been argued, however, that variation of APD gain with temperature could be a serious problem preventing APDs from replacing traditional photomultiplier tubes (PMTs) in some applications. Here we develop an active gain-control system to keep the APD gain stable under moderate temperature variations. As a performance demonstration of the proposed system, we have tested the response of a scintillation photon detector consisting of a 5x5 mm^2 reverse-type APD optically coupled with a CsI(Tl) crystal. We show that the APD gain was successfully controlled under a temperature variation of DT = 20deg, within a time-cycle of 6000 sec. The best FWHM energy resolution of 6.1+-0.2 % was obtained for 662 keV gamma-rays, and the energy threshold was as low as 6.5 keV, by integrating data from +20deg - 0deg cycles. The corresponding values for -20deg - 0deg cycles were 6.9+-0.2 % and 5.2 keV, respectively. These results are comparable, or only slightly worse than that obtained at a fixed temperature. Our results suggest new potential uses for APDs in various space researches and nuclear physics. As examples, we briefly introduce the NeXT and Cute-1.7 satellite missions that will carry the APDs as scientific instruments for the first time.

  1. Reducing gains/loss asymmetry: A virtual reality choice experiment (VRCE)

    E-Print Network [OSTI]

    Bateman, Ian J.

    responses. Adapting such insights to the field of non-market valuation, for certain environmental goods approaches to conveying a land use change scenario (relying principally on numeric information that the gains/loss asymmetry is roughly twice as strong under a conventional numeric CE design than

  2. Category Theory in Ontology Research: Concrete Gain from an Abstract Approach

    E-Print Network [OSTI]

    Hitzler, Pascal

    with the challenge of integrating information from different distributed sources. In the first place, this requiresCategory Theory in Ontology Research: Concrete Gain from an Abstract Approach Markus Kr¨otzsch Pascal Hitzler Marc Ehrig York Sure Institute AIFB, University of Karlsruhe, Germany; {mak

  3. Current gain in bipolar transistors with a field plate over the base surface

    E-Print Network [OSTI]

    Anantharam, Venkat

    the base surface and extending from the collector- base junction edge, on the current gain of vertical n-p. Abstract: Vertical n-p-n and lateral p-n-p transistor structures of an integrated circuit are studied using carriers into the base contact. This simulation study has also been adopted for the study of lateral p-n-p

  4. Beef feedlot cattle use individual feeding strategies to gain access to feed in a competitive environment

    E-Print Network [OSTI]

    Farrell, Anthony P.

    i Beef feedlot cattle use individual feeding strategies to gain access to feed in a competitive August 2007 © Gosia Zobel, 2007 #12;ii ABSTRACT Cattle are social animals and frequently interact interest in the social behavior of cattle, no research has focused on assessing the relationship between

  5. OPTIMUM MORPHOLOGY AND PERFORMANCE GAINS OF ORGANIC SOLAR CELLS Biswajit Ray and Muhammad A. Alam

    E-Print Network [OSTI]

    Alam, Muhammad A.

    OPTIMUM MORPHOLOGY AND PERFORMANCE GAINS OF ORGANIC SOLAR CELLS Biswajit Ray and Muhammad A. Alam geometry. INTRODUCTION AND BACKGROUND Research in the area of organic photovoltaic (OPV) cell started higher recombination due to increased interfacial area. Thus even though BHJ solar cell has achieved

  6. Entanglement, EPR correlations, and mesoscopic quantum superposition by the high-gain quantum injected parametric amplification

    E-Print Network [OSTI]

    Roma "La Sapienza", Università di

    of bipartite entanglement of the output field generated by the quantum injected high-gain optical parametric then generates on the output cloning mode C M N copies, or clones of the input qubit . Moreover, in the case of mode-nondegenerate QIOPA, the device simulta- neously generates M-N states on the output anticlon- ing

  7. Discrete-time Lyapunov based small-gain theorem for parameterized interconnected ISS systems

    E-Print Network [OSTI]

    Nesic, Dragan

    Discrete-time Lyapunov based small-gain theorem for parameterized interconnected ISS systems Dina via the Lyapunov method. In particular, an ISS Lyapunov function for the overall system is constructed from the ISS Lyapunov functions of the two subsystems. We consider parameterized families of discrete

  8. ANALYTIC MODEL OF HARMONIC GENERATION IN THE LOW-GAIN FEL REGIME

    E-Print Network [OSTI]

    Wurtele, Jonathan

    ANALYTIC MODEL OF HARMONIC GENERATION IN THE LOW-GAIN FEL REGIME G. Penn, M. Reinsch, J.S. Wurtele , LBNL, Berkeley, CA 94720, USA Abstract Harmonic generation using free electron lasers (FELs) requires with simulation results using the FEL code GENESIS, both for single stages of harmonic generation and for the LUX

  9. GAIN-SCHEDULED PID FOR IMBALANCE COMPENSATION OF A MAGNETIC BEARING

    E-Print Network [OSTI]

    Noll, Dominikus

    GAIN-SCHEDULED PID FOR IMBALANCE COMPENSATION OF A MAGNETIC BEARING Laleh Hosseini@yahoo.fr, noll@mip.ups-tlse.fr Keywords: Scheduled controller for magnetic bearing, H optimal decentralized PID of a magnetic bearing device is addressed by parameter varying control. Within the structure of decen- tralized

  10. Design and Performance Tradeoffs of High-Gain Observers with Applications to the Control of Smart

    E-Print Network [OSTI]

    Tan, Xiaobo

    and Computer Engineering 2006 #12;ABSTRACT Design and Performance Tradeoffs of High-Gain Observers multirate output feedback scheme to a shape memory alloy actuated rotary joint by com- bining the observer with a hysteresis inversion controller. The rotary joint is modeled as a hysteresis operator of Preisach type

  11. Power functions and envelopes for unit root tests

    E-Print Network [OSTI]

    Juhl, Ted P.; Xiao, Z. J.

    2003-04-01

    ! closely+ We prove the result for case 2 because the other cases are similar+ The proof is completed by finding E~e uLR 2 ! and then replacing u by iu+ First, LR~c, Sc! 5 ~ Sc 2 2 2c Sc!E~W 1 c ! 2 1 2 ScEW 1 c dW 1 1~ Sc 2 2 2c Sc! S R 2 12 R 2 DE ~W 1 c 2... ~2000! extend the covariate augmented unit root tests de- veloped by Hansen ~1995! to form point optimal tests invariant to deterministic terms+ Because our focus is on the evaluation of the asymptotic power curves and envelopes, we take the asymptotic...

  12. Roots of terrorism: a reassessment after September 11th

    SciTech Connect (OSTI)

    Pilat, Joseph F.

    2002-01-01

    The brutal terrorist attacks of September 11th, the anthrax attacks that followed and growing knowledge of al Qaeda's pursuit of nuclear, biological and chemical weapons have not only intensified concerns about terrorism but also created doubts about our understanding of terrorism. These attacks were in many ways unprecedented, and ultimately raise the question of the roots or causes of terrorism. Historically and today, there have been divergent views on this question, which reflect philosophical, religious, political, sociological and other differences. These differences are not merely academic, as they can affect our understanding of both the threat and of responses to terrorism in the aftermath of September 11th, Terrorism is too complex and diverse a phenomenon to speak easily of causes. But we may be able to discern the causes of specific acts. Our response to 9/11 and other acts of terrorism will be affected by our understanding of their causes. If 9/11 was caused by US Middle East policies, the response must involve a review of these policies. If it is a backlash against globalization, the response must address the realities underlying anti-globalization sentiments. Addressing causes will not in any case end terrorism, and addressing the wrong causes will be counterproductive. Actions to reduce those conditions that create support for terrorism and aid its recruitment, which need to be clearly identified, are critical in any counterterrorism strategy. So we must understand the reasons for terrorism and, in particular, for the attacks of September 11th.T his paper will look at the question of the roots of terrorism and then look to the specific case of 911 and its aftermath, with a special view to the impact of globalization.

  13. Original article Water extraction by tree fine roots in the forest

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    Original article Water extraction by tree fine roots in the forest floor of a temperate Fagus Germany. By field and laboratory measurements the aim was to quantify the water extraction by those tree extract more water per standing crop of root biomass and, thus, are thought to operate more economically

  14. On the number of roots of self-inversive polynomials on the complex unit circle

    E-Print Network [OSTI]

    R. S. Vieira

    2015-02-18

    We present sufficient conditions for a self-inversive polynomial to have a fixed number of roots on the complex unit circle. This generalizes the condition found by Lakatos and Losonczi for a self-inversive polynomial to have all its roots on the complex unit circle.

  15. Aquaporin-mediated changes in hydraulic conductivity of deep tree roots accessed via caves

    E-Print Network [OSTI]

    Jackson, Robert B.

    to measure in situ fine root hydraulic conductiv- ity (FRHC) and aquaporin contribution to FRHC (AQPCAquaporin-mediated changes in hydraulic conductivity of deep tree roots accessed via caves ANDREW J. JACKSON4 1 USDA-ARS, Crops Pathology and Genetics Research Unit, Department of Viticulture and Enology

  16. VEGETATION SUCCESSION AND ROOT PENETRATION ON THE LORRAINE COVER USED TO LIMIT ACID MINE DRAINAGE

    E-Print Network [OSTI]

    Aubertin, Michel

    1 VEGETATION SUCCESSION AND ROOT PENETRATION ON THE LORRAINE COVER USED TO LIMIT ACID MINE DRAINAGE to limit the generation of acid mine drainage. The CCBE is made up of three layers: a 0.3 m layer of sand (CCBE), biointrusion, long-term performance, vegetation succession, root depth, acid mine drainage

  17. SURVEY OF LESION AND NORTHERN ROOT-KNOT NEMATODES ASSOCIATED WITH VEGETABLES IN VERMONT

    E-Print Network [OSTI]

    Neher, Deborah A.

    98 SURVEY OF LESION AND NORTHERN ROOT-KNOT NEMATODES ASSOCIATED WITH VEGETABLES IN VERMONT Yong Bao*, Deborah A. Neher Department of Plant and Soil Science, University of Vermont, 63 Carrigan Drive of lesion and northern root-knot nematodes associated with vegetables in Vermont. Nematropica 41

  18. Transpiration and Root Development of Urban Trees in Structural Soil Stormwater Reservoirs

    E-Print Network [OSTI]

    Virginia Tech

    Transpiration and Root Development of Urban Trees in Structural Soil Stormwater Reservoirs Julia Abstract Stormwater management that relies on eco- system processes, such as tree canopy interception sustainable urban forests and stormwater management. We evaluated tree water uptake and root distribution

  19. A bootstrapped, low-noise, and high-gain photodetector for shot noise measurement

    SciTech Connect (OSTI)

    Zhou, Haijun; Yang, Wenhai; Li, Zhixiu; Li, Xuefeng; Zheng, Yaohui

    2014-01-15

    We presented a low-noise, high-gain photodetector based on the bootstrap structure and the L-C (inductance and capacitance) combination. Electronic characteristics of the photodetector, including electronic noise, gain and frequency response, and dynamic range, were verified through a single-frequency Nd:YVO{sub 4} laser at 1064 nm with coherent output. The measured shot noise of 50 ?W laser was 13 dB above the electronic noise at the analysis frequency of 2 MHz, and 10 dB at 3 MHz. And a maximum clearance of 28 dB at 2 MHz was achieved when 1.52 mW laser was illuminated. In addition, the photodetector showed excellent linearities for both DC and AC amplifications in the laser power range between 12.5 ?W and 1.52 mW.

  20. Turning low solar heat gain windows into energy savers in winter

    SciTech Connect (OSTI)

    Feuermann, D.; Novoplansky, A. [Ben-Gurion Univ. of the Negev, Sede Boker (Israel). Jacob Blaustein Inst. for Desert Research

    1996-10-01

    The reduction in summer peak cooling loads of buildings with a large ratio of window to floor areas is often achieved by windows with a low solar heat gain coefficient (SHGC). These windows are typically double glazed with the exterior pane tinted or selectively absorbing. Absorbed solar radiation is rejected to the environment. This is undesirable in the cold season. The authors suggest that by turning south-facing windows by 180{degree} for the duration of the cold season, the solar heat gain of these windows can be increased significantly. By means of a computer simulation, they estimate seasonal energy savings for a model room in several climates. The effect of building heat capacity on the savings is also studied. Windows whose positions can be reversed for ease of cleaning are commercially available. This study shows that in a suitable climate the achievable savings easily compensate for the additional effort and possible investment over the lifetime of the window.

  1. Theory of high gain cavity-enhanced spontaneous parametric down-conversion

    E-Print Network [OSTI]

    Joanna A. Zieli?ska; Morgan W. Mitchell

    2015-01-08

    We compute the output of multimode cavity-enhanced spontaneous parametric down-conversion (SPDC) for sub-threshold, but otherwise arbitrary, gain. We find analytic Bogoliubov transformations that allow us to calculate arbitrary field correlation functions, including the second-order intensity correlation function $G^{(2)}(T)$. The results show evidence of increased coherence due to stimulated SPDC. We extend an earlier model [Lu and Ou, Phys. Rev. A, 62, 033804 (2000)] to arbitrary gain and finesse, and show the extension gives accurate results in most scenarios. The results will allow simple, analytic description of cavity-based nonclassical light sources for quantum networking, quantum-enhanced sensing of atoms and generation of highly non-classical field states

  2. Reducing Thermal Losses and Gains With Buried and Encapsulated Ducts in Hot-Humid Climates

    SciTech Connect (OSTI)

    Shapiro, C.; Magee, A.; Zoeller, W.

    2013-02-01

    The Consortium for Advanced Residential Buildings (CARB) monitored three houses in Jacksonville, FL, to investigate the effectiveness of encapsulated and encapsulated/buried ducts in reducing thermal losses and gains from ductwork in unconditioned attics. Burying ductwork beneath loose-fill insulation has been identified as an effective method of reducing thermal losses and gains from ductwork in dry climates, but it is not applicable in humid climates where condensation may occur on the outside of the duct jacket. By encapsulating the ductwork in closed cell polyurethane foam (ccSPF) before burial beneath loose-fill mineral fiber insulation, the condensation potential may be reduced while increasing the R-value of the ductwork.

  3. Robust random number generation using steady-state emission of gain-switched laser diodes

    SciTech Connect (OSTI)

    Yuan, Z. L. Lucamarini, M.; Dynes, J. F.; Fröhlich, B.; Plews, A.; Shields, A. J.

    2014-06-30

    We demonstrate robust, high-speed random number generation using interference of the steady-state emission of guaranteed random phases, obtained through gain-switching a semiconductor laser diode. Steady-state emission tolerates large temporal pulse misalignments and therefore significantly improves the interference quality. Using an 8-bit digitizer followed by a finite-impulse-response unbiasing algorithm, we achieve random number generation rates of 8 and 20?Gb/s, for laser repetition rates of 1 and 2.5?GHz, respectively, with a ±20% tolerance in the interferometer differential delay. We also report a generation rate of 80?Gb/s using partially phase-correlated short pulses. In relation to the field of quantum key distribution, our results confirm the gain-switched laser diode as a suitable light source, capable of providing phase-randomized coherent pulses at a clock rate of up to 2.5?GHz.

  4. Measuring solar reflectance - Part I: Defining a metric that accurately predicts solar heat gain

    SciTech Connect (OSTI)

    Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul [Heat Island Group, Environmental Energy Technologies Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720 (United States)

    2010-09-15

    Solar reflectance can vary with the spectral and angular distributions of incident sunlight, which in turn depend on surface orientation, solar position and atmospheric conditions. A widely used solar reflectance metric based on the ASTM Standard E891 beam-normal solar spectral irradiance underestimates the solar heat gain of a spectrally selective ''cool colored'' surface because this irradiance contains a greater fraction of near-infrared light than typically found in ordinary (unconcentrated) global sunlight. At mainland US latitudes, this metric R{sub E891BN} can underestimate the annual peak solar heat gain of a typical roof or pavement (slope {<=} 5:12 [23 ]) by as much as 89 W m{sup -2}, and underestimate its peak surface temperature by up to 5 K. Using R{sub E891BN} to characterize roofs in a building energy simulation can exaggerate the economic value N of annual cool roof net energy savings by as much as 23%. We define clear sky air mass one global horizontal (''AM1GH'') solar reflectance R{sub g,0}, a simple and easily measured property that more accurately predicts solar heat gain. R{sub g,0} predicts the annual peak solar heat gain of a roof or pavement to within 2 W m{sup -2}, and overestimates N by no more than 3%. R{sub g,0} is well suited to rating the solar reflectances of roofs, pavements and walls. We show in Part II that R{sub g,0} can be easily and accurately measured with a pyranometer, a solar spectrophotometer or version 6 of the Solar Spectrum Reflectometer. (author)

  5. Measuring solar reflectance Part I: Defining a metric that accurately predicts solar heat gain

    SciTech Connect (OSTI)

    Levinson, Ronnen; Akbari, Hashem; Berdahl, Paul

    2010-05-14

    Solar reflectance can vary with the spectral and angular distributions of incident sunlight, which in turn depend on surface orientation, solar position and atmospheric conditions. A widely used solar reflectance metric based on the ASTM Standard E891 beam-normal solar spectral irradiance underestimates the solar heat gain of a spectrally selective 'cool colored' surface because this irradiance contains a greater fraction of near-infrared light than typically found in ordinary (unconcentrated) global sunlight. At mainland U.S. latitudes, this metric RE891BN can underestimate the annual peak solar heat gain of a typical roof or pavement (slope {le} 5:12 [23{sup o}]) by as much as 89 W m{sup -2}, and underestimate its peak surface temperature by up to 5 K. Using R{sub E891BN} to characterize roofs in a building energy simulation can exaggerate the economic value N of annual cool-roof net energy savings by as much as 23%. We define clear-sky air mass one global horizontal ('AM1GH') solar reflectance R{sub g,0}, a simple and easily measured property that more accurately predicts solar heat gain. R{sub g,0} predicts the annual peak solar heat gain of a roof or pavement to within 2 W m{sup -2}, and overestimates N by no more than 3%. R{sub g,0} is well suited to rating the solar reflectances of roofs, pavements and walls. We show in Part II that R{sub g,0} can be easily and accurately measured with a pyranometer, a solar spectrophotometer or version 6 of the Solar Spectrum Reflectometer.

  6. Observation of transient gain without population inversion in a laser-cooled rubidium lambda system

    E-Print Network [OSTI]

    S. R. de Echaniz; Andrew D. Greentree; A. V. Durrant; D. M. Segal; J. P. Marangos; J. A. Vaccaro

    2001-05-17

    We have observed clear Rabi oscillations of a weak probe in a strongly driven three-level lambda system in laser-cooled rubidium for the first time. When the coupling field is non-adiabatically switched on using a Pockels cell, transient probe gain without population inversion is obtained in the presence of uncoupled absorptions. Our results are supported by three-state computations.

  7. Relationship of the serum protein-bound iodine to rates of gain in beef cattle 

    E-Print Network [OSTI]

    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...

  8. Prediction of internal temperature swings in direct-gain passive-solar buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1983-01-01

    The diurnal heat capacity method is presented for estimating inside-temperature swings attributable to direct winter solar gain. The procedures are simplified to be suitable for hand analysis, aided by tables of diurnal heat capacity for various materials. The method has been spot checked against computer simulation and has been used successfully by a group of 20 builders in New Mexico to analyze whether temperature swings would be excessive in their designs.

  9. Investigation of the electron trajectories and gain regimes of the whistler pumped free-electron laser

    SciTech Connect (OSTI)

    Jafarinia, F.; Jafari, S. [Department of Physics, University of Guilan, Rasht 41335-1914 (Iran, Islamic Republic of); Mehdian, H. [Department of Physics and Institute for Plasma Research, Tarbiat Moallem University, Tehran 15614 (Iran, Islamic Republic of)

    2013-04-15

    A free-electron laser (FEL) scheme, which employs the whistler wave as a slow electromagnetic wave wiggler, was studied theoretically. Subjected to the transverse fields of whistler wave wiggler, the beam electrons are the source of the energy needed to produce electromagnetic radiation. The strength and the period of the wiggler field depend on the parameters of the magnetoplasma medium. This configuration has a higher tunability by controlling the plasma density, on top of the {gamma}-tunability of the conventional FELs. The theory of linear gain and electron trajectories was presented and four groups (I, II, III, and IV) of electron orbits were found in the presence of an axial guide magnetic field. Using perturbation analysis, it is found that these groups of orbits were stable except small regions of group I and IV orbits. The function {Phi} which determines the rate of change of axial velocity with beam energy was also derived. In the case in which {Phi}<0 represents a negative-mass regime in which the axial velocity accelerates as the electrons lose energy. Numerical solutions showed that by increasing the cyclotron frequency, the gain for group I and III orbits increased, while a gain decrement was obtained for group II and IV orbits.

  10. Interpreting gains and losses in conceptual test using Item Response Theory

    E-Print Network [OSTI]

    Lamine, Brahim

    2015-01-01

    Conceptual tests are widely used by physics instructors to assess students' conceptual understanding and compare teaching methods. It is common to look at students' changes in their answers between a pre-test and a post-test to quantify a transition in student's conceptions. This is often done by looking at the proportion of incorrect answers in the pre-test that changes to correct answers in the post-test -- the gain -- and the proportion of correct answers that changes to incorrect answers -- the loss. By comparing theoretical predictions to experimental data on the Force Concept Inventory, we shown that Item Response Theory (IRT) is able to fairly well predict the observed gains and losses. We then use IRT to quantify the student's changes in a test-retest situation when no learning occurs and show that $i)$ up to 25\\% of total answers can change due to the non-deterministic nature of student's answer and that $ii)$ gains and losses can go from 0\\% to 100\\%. Still using IRT, we highlight the conditions tha...

  11. High Resolution Imaging of in situ Root Hair Development to Assess Oilseed Species Responses to Water Stress

    E-Print Network [OSTI]

    Hammac, Warren Ashley; Pan, William; Bolton, Ronald; Koenig, Richard

    2009-01-01

    M. Williams. 2008. The effects of water availability on rootMualem, and U. Shani. 2008a. Water uptake and hydraulics of2008b. Microsensing of water dynamics and root distributions

  12. Vitality and chemistry of roots of red spruce in forest floors of stands with a gradient of soil

    E-Print Network [OSTI]

    David, Mark B.

    Vitality and chemistry of roots of red spruce in forest floors of stands with a gradient of soil Al) dominated by red spruce and with a gradient of forest floor exchangeable Al/Ca ratios. Root vitality

  13. The roots of terrorism: A reassessment after September 11th

    SciTech Connect (OSTI)

    Pilat, Joseph F.

    2002-01-01

    The brutal terrorist attacks of September 11th, the anthrax attacks that followed and growing knowledge of al Qaeda's pursuit of nuclear, biological and chemical weapons have not only intensified concerns about terrorism but also created doubts about our understanding of terrorism. These attacks were in many ways unprecedented, and ultimately raise the question of the roots or causes of terrorism. Historically and today, there have been divergent views on this question, which reflect philosophical, religious, political and other differences. These differences are not merely academic, as they can affect our understanding of both the threat and of responses to terrorism in the aftermath of September 1 1 th. Terrorism is too complex and diverse a phenomenon to speak easily of causes. But we may be able to discern the causes of specific acts. Our response to 9/11 and other acts of terrorism will be affected by our understanding of their causes, as well as by possible political requirements to address widespread perceptions of causes. If 9/11 was caused by Islamic radicalism, the near-term response must be to ensure the terrorists are defeated and pose no fiuther danger. In the longer term, education is critical. If the attacks were caused by US Middle East policies, the response should involve a review of those policies. This may or may not result in changes to policy, public diplomacy, etc. If the attacks were a backlash against globalization, the response must address the realities underlying anti-globalization sentiments. Addressing causes (real and perceived) will not in any case end terrorism, and addressing the wrong causes can be counterproductive. Actions to reduce those conditions that create support for terrorism and aid its recruitment effort are critical to any counterterrorism strategy. For this reason alone, we must do everything possible to understand the reasons terrorism may be undertaken, including the attacks of September 1 1 th. This paper will look at the question of the roots of terrorism and then look to the specific case of 9/11 and its aftermath, with a special view to the impact of globalization.

  14. Guaranteed stability regions of linear systems with actuator saturation using the low-and-high gain technique

    E-Print Network [OSTI]

    Turner, Matthew C.

    Introduction Over the past decade the low gain technique and its relation, the low-and-high gain (LHG et al. (2000)), inspired by the pseudo-scheduling ideas involved in the LHG technique but based interesting features of the LHG tech- nique were discussed. In particular, the work in Lin & Saberi (1995

  15. On the Duality between Outage Capacity and Multiuser Scheduling Gain for MIMO Systems and the Impact of Shadow Fading*

    E-Print Network [OSTI]

    Dai, Huaiyu

    On the Duality between Outage Capacity and Multiuser Scheduling Gain for MIMO Systems on individual link outage capacity and multiuser scheduling gain for MIMO systems are quantified, which admits fading, while significantly limits the channel outage capacity as expected, actually enhances

  16. An inverse method for calculation of thermal inertia and heat gain in air conditioning and refrigeration systems

    E-Print Network [OSTI]

    Bahrami, Majid

    An inverse method for calculation of thermal inertia and heat gain in air conditioning for estimation of thermal inertia and heat gain in air conditioning and refrigeration systems using on Ltd. All rights reserved. 1. Introduction Heating, Ventilation, Air Conditioning, and Refrigeration

  17. 2530 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 7, JULY 2007 Maximizing Cooperative Diversity Energy Gain for

    E-Print Network [OSTI]

    Shen, Xuemin "Sherman"

    diversity system to maximize the cooperative diversity energy gain in a ra- dio cell. The optimization in the matching algorithm, high cooperative diversity energy gain with moderate overhead is possible. In mobile2530 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS, VOL. 6, NO. 7, JULY 2007 Maximizing Cooperative

  18. An insider perspective on community gains: A subjective account of a Namibian rural communities' perception of a

    E-Print Network [OSTI]

    Blake, Edwin

    1 An insider perspective on community gains: A subjective account of a Namibian rural communities and marginalised rural communities' perspective. We have collected community viewpoints concurrently over the past Participatory Design, rural community, user gains, user involvement 1. Introduction The intent to enhance

  19. Realising high-current gain p-n-p transistors using a novel surface accumulation layer transistor

    E-Print Network [OSTI]

    Kumar, M. Jagadesh

    of minority carrier transit time caused by the presence of the high-low junction[7]. While high gain lateral p-n-pRealising high-current gain p-n-p transistors using a novel surface accumulation layer transistor (SALTran) concept M. Jagadesh Kumar and V. Parihar Abstract: The authors report a new p-n-p surface

  20. Inelastic neutron and low-frequency Raman scattering in a niobium-phosphate glass for Raman gain applications

    E-Print Network [OSTI]

    Schirmacher, Walter

    Inelastic neutron and low-frequency Raman scattering in a niobium-phosphate glass for Raman gain: Raman scattering; Neutron scattering; Raman gain; Boson peak We present measurements of the vibrational, extracted from specific-heat or neutron scattering measurements [7,8]. Only very recently two of the present

  1. Soil water depletion by oak trees and the influence of root water uptake on the moisture content spatial statistics

    E-Print Network [OSTI]

    Katul, Gabriel

    Soil water depletion by oak trees and the influence of root water uptake on the moisture content was used to assess the role of root water uptake on the spatial variability of moisture content the spa- tial variability in moisture content due to root water uptake from variability in soil hydraulic

  2. Productive Energy of Some Feeds and Foods as Measured by Gains of Energy by Growing Chickens. 

    E-Print Network [OSTI]

    Fraps, G. S. (George Stronach); Carlyle, E. C. (Elmer Cardinal)

    1942-01-01

    STATION A B. CONNER, DIRECTOR, College Station, Texas BULLETIN NO. 625 DECEMBER 1942 PRODUCTIVE ENERGY OF SOME FEEDS AND FOODS AS MEASURED BY GAINS OF ENERGY BY GROWING CHICKENS G. S. FRAPS AND E. C. CARLYLE Division of Chemistry -* LIBRA RY... Aflculfural&~eetv~! ~~i\\~~~~~~~ - 601i~p7 ~faf>~ T kJ;:~: AGRICULTURAL AND MECHANICAL COLLEGE OF' TEXAS T. 0. WALTON, President B-28-1242-6M-L180 - IC- - [Blank Page in Original Bulletin] The value of 62 feeds and foods for furnishing energy for growing...

  3. Method and system for modulation of gain suppression in high average power laser systems

    DOE Patents [OSTI]

    Bayramian, Andrew James (Manteca, CA)

    2012-07-31

    A high average power laser system with modulated gain suppression includes an input aperture associated with a first laser beam extraction path and an output aperture associated with the first laser beam extraction path. The system also includes a pinhole creation laser having an optical output directed along a pinhole creation path and an absorbing material positioned along both the first laser beam extraction path and the pinhole creation path. The system further includes a mechanism operable to translate the absorbing material in a direction crossing the first laser beam extraction laser path and a controller operable to modulate the second laser beam.

  4. Possible energy gain for a plasma-liner-driven magneto-inertial fusion concept

    SciTech Connect (OSTI)

    Knapp, C. E.; Kirkpatrick, R. C.

    2014-07-15

    A one-dimensional parameter study of a Magneto-Inertial Fusion (MIF) concept indicates that significant gain may be achievable. This concept uses a dynamically formed plasma shell with inwardly directed momentum to drive a magnetized fuel to ignition, which in turn partially burns an intermediate layer of unmagnetized fuel. The concept is referred to as Plasma Jet MIF or PJMIF. The results of an adaptive mesh refinement Eulerian code (Crestone) are compared to those of a Lagrangian code (LASNEX). These are the first published results using the Crestone and LASNEX codes on the PJMIF concept.

  5. Frequency dependence of mass flow gain factor and cavitation compliance of cavitating inducers

    SciTech Connect (OSTI)

    Otsuka, S.; Tsujimoto, Yoshinobu [Osaka Univ. (Japan); Kamijo, Kenjiro [National Aerospace Lab., Kakuda, Miyagi (Japan). Kakuda Research Center; Furuya, O. [AMP Technologies, Osaka (Japan)

    1994-12-31

    Unsteady cavitation characteristics are analyzed based on a closed cavity model in which the length of the cavity is allowed to oscillate. It is shown that the present model blends smoothly into quasisteady calculations in the low frequency limit, unlike fixed cavity length models. Effects of incidence angle and cavitation number on cavitation compliance and mass flow gain factor are shown as functions of reduce frequency. The cavity volume is evaluated by three methods and the results were used to confirm the accuracy and adequacy of the numerical calculation. By comparison with experimental data on inducers, it was shown that the present model can simulate the characteristics of unsteady cavitation qualitatively.

  6. Root Cause Analysis of Gastroduodenal Ulceration After Yttrium-90 Radioembolization

    SciTech Connect (OSTI)

    Lam, Marnix G. E. H.; Banerjee, Subhas; Louie, John D.; Abdelmaksoud, Mohamed H. K.; Iagaru, Andrei H.; Ennen, Rebecca E.; Sze, Daniel Y.

    2013-12-15

    IntroductionA root cause analysis was performed on the occurrence of gastroduodenal ulceration after hepatic radioembolization (RE). We aimed to identify the risk factors in the treated population and to determine the specific mechanism of nontarget RE in individual cases. Methods: The records of 247 consecutive patients treated with yttrium-90 RE for primary (n = 90) or metastatic (n = 157) liver cancer using either resin (n = 181) or glass (n = 66) microspheres were reviewed. All patients who developed a biopsy-proven microsphere-induced gastroduodenal ulcer were identified. Univariate and multivariate analyses were performed on baseline parameters and procedural data to determine possible risk factors in the total population. Individual cases were analyzed to ascertain the specific cause, including identification of the culprit vessel(s) leading to extrahepatic deposition of the microspheres. Results: Eight patients (3.2 %) developed a gastroduodenal ulcer. Stasis during injection was the strongest independent risk factor (p = 0.004), followed by distal origin of the gastroduodenal artery (p = 0.004), young age (p = 0.040), and proximal injection of the microspheres (p = 0.043). Prolonged administrations, pain during administration, whole liver treatment, and use of resin microspheres also showed interrelated trends in multivariate analysis. Retrospective review of intraprocedural and postprocedural imaging showed a probable or possible culprit vessel, each a tiny complex collateral vessel, in seven patients. Conclusion: Proximal administrations and those resulting in stasis of flow presented increased risk for gastroduodenal ulceration. Patients who had undergone bevacizumab therapy were at high risk for developing stasis.

  7. Fusion Rules of the Lowest Weight Representations of osp_q(1|2) at Roots of Unity: Polynomial Realization and Degeneration at Roots of Unity

    E-Print Network [OSTI]

    D. Karakhanyan; Sh. Khachatryan

    2009-08-27

    The degeneracy of the lowest weight representations of the quantum superalgebra $osp_q(1|2)$ and their tensor products at exceptional values of %when deformation parameter $q$ takes exceptional values is studied. The main features of the structures of the finite dimensional lowest weight representations and their fusion rules are illustrated using realization of group generators as finite-difference operators acting in the space of the polynomials. The complete fusion rules for the decompositions of the tensor products at roots of unity are presented. The appearance of indecomposable representations in the fusions is described using Clebsh-Gordan coefficients derived for general values of $q$ and at roots of unity.

  8. Quantum systems related to root systems and radial parts of Laplace operators

    E-Print Network [OSTI]

    M. A. Olshanetsky; A. M. Perelomov

    2002-03-18

    The relation between quantum systems associated to root systems and radial parts of Laplace operators on symmetric spaces is established. From this it follows the complete integrability of some quantum systems.

  9. J2EE Instrumentation for software aging root cause application component determination with AspectJ

    E-Print Network [OSTI]

    Alonso, Javier

    J2EE Instrumentation for software aging root cause application component determination with Aspect needs appear. Particularly, availability of the information at any time and everywhere is today a common

  10. Accounting for Variation in Root Wood Density and Percent Carbon in

    E-Print Network [OSTI]

    ) involves digging a trench next to the root system of interest and mounting a grid frame on the trench wall allocation patterns have been described for many species. Variations in light interception as well

  11. Using Violation and Vulnerability Analysis to Understand the Root-Causes of Complex Security Incidents

    E-Print Network [OSTI]

    Johnson, Chris

    Department of Energy has also established the Information Security Resource Center to coordinate the `root 2003) highlighted several commercial initiatives to understand not simply what went wrong in any single the underlying `systemic' technical, managerial and organizational precursors. Unfortunately

  12. The Euler Tour Technique and Parallel Rooted Spanning Tree Guojing Cong, David A. Bader

    E-Print Network [OSTI]

    Bader, David A.

    edges in the This work was supported in part by NSF Grants CAREER ACI- 00-93039, ITR ACI-00-81404, DEB structural relationship on the vertices. The standard approach for finding a rooted spanning tree combines

  13. Formation of Metallic Copper Nanoparticles at the Soil-Root Interface

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

    Formation of Metallic Copper Nanoparticles at the Soil-Root Interface Print The first commercial fungicide-the "Bordeaux mixture" of copper sulfate and lime-was used to fight downy...

  14. The role of rooting strategies on the eco-hydrology of semi-arid regions

    E-Print Network [OSTI]

    Sivandran, Gajan

    2012-01-01

    Arid regions are characterized by high variability in the arrival of rainfall, and species found in these areas have adapted mechanisms to ensure the capture of this scarce resource. In particular, the rooting strategies ...

  15. Root cause analysis of solder flux residue incidence in the manufacture of electronic power modules

    E-Print Network [OSTI]

    Jain, Pranav

    2011-01-01

    This work investigates the root causes of the incidence of solder flux residue underneath electronic components in the manufacture of power modules. The existing deionized water-based centrifugal cleaning process was ...

  16. Hydraulic redistribution of soil water by roots affects whole-stand evapotranspiration and net ecosystem

    E-Print Network [OSTI]

    Noormets, Asko

    Hydraulic redistribution of soil water by roots affects whole-stand evapotranspiration and net sap flow, soil water content, understory, water potential. Summary · Hydraulic redistribution (HR , respectively. · Hydraulic redistribution mitigated the effects of soil drying on understory and stand

  17. Wheat Root Exudates Affected Phosphorus Uptake and Growth of Soybean in Two Farming Systems

    E-Print Network [OSTI]

    Nie, Yanli; Zheng, Yi; Tang, Li; Li, Yuncong

    2009-01-01

    Soil. 2003; 256: 131-137. Nie YL, Tang L, Zheng Y, Effects2001: Zheng Y, Tang L, and Nie YL, Could root exudates ofStatistical Bureau, 2004). Nie et al. (2004) has shown that

  18. Vehicle Technologies Office Merit Review 2014: Heavy Duty Roots Expander Heat Energy Recovery (HD-REHER)

    Broader source: Energy.gov [DOE]

    Presentation given by Eaton Corporation at 2014 DOE Hydrogen and Fuel Cells Program and Vehicle Technologies Office Annual Merit Review and Peer Evaluation Meeting about heavy duty roots expander...

  19. Secondary Growth in Vertebraria Roots from the Late Permian of Antarctica: A Change in Developmental Timing

    E-Print Network [OSTI]

    Decombeix, Anne-Laure; Taylor, Edith L.; Taylor, Thomas N.

    2009-06-01

    Permineralized Vertebraria roots from the late Permian of the Central Transantarctic Mountains, Antarctica, are investigated to understand the unusual vascular anatomy of the genus. The specimens range from ?1 mm to several centimeters in diameter...

  20. Mechanism of anti-influenza virus activity of Maillard reaction products derived from Isatidis roots 

    E-Print Network [OSTI]

    Ke, Lijing

    2011-07-05

    The cyto-protective compositions and effects of antiviral Maillard reaction products (MRPs) derived from roots of Isatis indigotica F. were examined using biochemical and biophysical methods. The Maillard reaction was ...

  1. A Simple Analytical Model of Evaporation in the Presence of Roots

    E-Print Network [OSTI]

    Cesare M. Cejas; Larry Hough; Jean-Christophe Castaing; Christian Fretigny; Remi Dreyfus

    2014-06-17

    Root systems can influence the dynamics of evapotranspiration of water out of a porous medium. The coupling of evapotranspiration remains a key aspect affecting overall root behavior. Predicting the evapotranspiration curve in the presence of roots helps keep track of the amount of water that remains in the porous medium. Using a controlled visual set-up of a 2D model soil system consisting of monodisperse glass beads, we first perform experiments on actual roots grown in partially saturated systems under different relative humidity conditions. We record parameters such as the total mass loss in the medium and the resulting position of the receding fronts and use these experimental results to develop a simple analytical model that predicts the position of the evaporating front as a function of time as well as the total amount of water that is lost from the medium due to the combined effects of evaporation and transpiration. The model is based on fundamental principles of evaporation flux and includes empirical assumptions on the quantity of stoma in the leaves and the transition time between regime 1 and regime 2. The model also underscores the importance of a much prolonged root life as long as the root is exposed to a partially saturated zone composed of a mixture of air and water. Comparison between the model and experimental results shows good prediction of the position of the evaporating front as well as the total mass loss from evapotranspiration in the presence of real root systems. These results provide additional understanding of both complex evaporation phenomenon and its influence on root mechanisms.

  2. A new method for predicting the solar heat gain of complex fenestration systems

    SciTech Connect (OSTI)

    Klems, J.H.; Warner, J.L.; Kelley, G.O.

    1995-03-01

    A new method of predicting the solar heat gain through complex fenestration systems involving nonspecular layers such as shades or blinds has been examined in a project jointly sponsored by ASHRAE and DOE. In this method, a scanning radiometer is used to measure the bidirectional radiative transmittance and reflectance of each layer of a fenestration system. The properties of systems containing these layers are then built up computationally from the measured layer properties using a transmission/multiple-reflection calculation. The calculation produces the total directional-hemispherical transmittance of the fenestration system and the layer-by-layer absorbances. These properties are in turn combined with layer-specific measurements of the inward-flowing fractions of absorbed solar energy to produce the overall solar heat gain coefficient. The method has been applied to one of the most optically complex systems in common use, a venetian blind in combination with multiple glazings. A comparison between the scanner-based calculation method and direct system calorimetric measurements made on the LBL MoWiTT facility showed good agreement, and is a significant validation of the method accuracy and feasibility.

  3. Quantum noise effects with Kerr nonlinearity enhancement in coupled gain-loss waveguides

    E-Print Network [OSTI]

    Bing He; Shu-Bin Yan; Jing Wang; Min Xiao

    2015-05-26

    It is generally difficult to study the dynamical properties of a quantum system with both inherent quantum noises and non-perturbative nonlinearity. Due to the possibly drastic intensity increase of an input coherent light in the gain-loss waveguide couplers with parity-time (PT) symmetry, the Kerr effect from a nonlinearity added into the systems can be greatly enhanced, and is expected to create the macroscopic entangled states of the output light fields with huge photon numbers. Meanwhile, the quantum noises also coexist with the amplification and dissipation of the light fields. Under the interplay between the quantum noises and nonlinearity, the quantum dynamical behaviors of the systems become rather complicated. However, the important quantum noise effects have been mostly neglected in the previous studies about nonlinear PT-symmetric systems. Here we present a solution to this non-perturbative quantum nonlinear problem, showing the real-time evolution of the system observables. The enhanced Kerr nonlinearity is found to give rise to a previously unknown decoherence effect that is irrelevant to the quantum noises, and imposes a limit on the emergence of macroscopic nonclassicality. In contrast to what happen in the linear systems, the quantum noises exert significant impact on the system dynamics, and can create the nonclassical light field states in conjunction with the enhanced Kerr nonlinearity. This first study on the noise involved quantum nonlinear dynamics of the coupled gain-loss waveguides can help to better understand the quantum noise effects in the broad nonlinear systems.

  4. A novel solution to the gated x-ray detector gain droop problem

    SciTech Connect (OSTI)

    Oertel, J. A. Archuleta, T. N.

    2014-11-15

    Microchannel plate (MCP), microstrip transmission line based, gated x-ray detectors used at the premier ICF laser facilities have a drop in gain as a function of mircostrip length that can be greater than 50% over 40 mm. These losses are due to ohmic losses in a microstrip coating that is less than the optimum electrical skin depth. The electrical skin depth for a copper transmission line at 3 GHz is 1.2 ?m while the standard microstrip coating thickness is roughly half a single skin depth. Simply increasing the copper coating thickness would begin filling the MCP pores and limit the number of secondary electrons created in the MCP. The current coating thickness represents a compromise between gain and ohmic loss. We suggest a novel solution to the loss problem by overcoating the copper transmission line with five electrical skin depths (?6 ?m) of Beryllium. Beryllium is reasonably transparent to x-rays above 800 eV and would improve the carrier current on the transmission line. The net result should be an optically flat photocathode response with almost no measurable loss in voltage along the transmission line.

  5. Non-Hermitian multi-particle systems from complex root spaces

    E-Print Network [OSTI]

    Andreas Fring; Monique Smith

    2011-08-08

    We provide a general construction procedure for antilinearly invariant complex root spaces. The proposed method is generic and may be applied to any Weyl group allowing to take any element of the group as a starting point for the construction. Worked out examples for several specific Weyl groups are presented, focusing especially on those cases for which no solutions were found previously. When applied in the defining relations of models based on root systems this usually leads to non-Hermitian models, which are nonetheless physically viable in a self-consistent sense as they are antilinearly invariant by construction. We discuss new types of Calogero models based on these complex roots. In addition we propose an alternative construction leading to q-deformed roots. We employ the latter type of roots to formulate a new version of affine Toda field theories based on non-simply laced roots systems. These models exhibit on the classical level a strong-weak duality in the coupling constant equivalent to a Lie algebraic duality, which is known for the quantum version of the undeformed case.

  6. Gains and losses in the eyes of the beholder: a comparative study of foreign policy decision making under risk 

    E-Print Network [OSTI]

    Yang, Yi

    2006-04-12

    Prospect theory is a descriptive model of individual decision-making under risk (Kahneman and Tversky 1979). The central tenet of prospect theory posits that the risk orientation of decision-makers is affected by the gains vs. losses domains...

  7. Dietary, Physical Activity, and Sedentary Behaviors and Their Relationship to Weight Gain in a College Age Population 

    E-Print Network [OSTI]

    Lee, Faegen Dillon

    2012-10-19

    the Council of Environment and Dietary Activity (CEDA) at Texas A&M University was examined and analyzed in order to understand how physical activity, sedentary behavior, and dietary activity affect weight gain or weight loss. The college population...

  8. Patterns and Implications of Gene Gain and Loss in the Evolution of Prochlorococcus

    SciTech Connect (OSTI)

    Lapidus, Alla; Kettler, Gregory C.; Martiny, Adam C.; Huang, Katherine; Zucker, Jeremy; Coleman, Maureen L.; Rodrigue, Sebastien; Chen, Feng; Lapidus, Alla; Ferriera, Steven; Johnson, Justin; Steglich, Claudia; Church, George M.; Richardson, Paul; Chisholm, Sallie W.

    2007-07-30

    Prochlorococcus is a marine cyanobacterium that numerically dominates the mid-latitude oceans and is the smallest known oxygenic phototroph. Numerous isolatesfrom diverse areas of the world's oceans have been studied and shown to be physiologically and genetically distinct. All isolates described thus far can be assigned to either a tightly clustered high-light (HL)-adapted clade, or a more divergent low-light (LL)-adapted group. The 16S rRNA sequences of the entire Prochlorococcus group differ by at most 3percent, and the four initially published genomes revealed patterns of genetic differentiation that help explain physiological differences among the isolates. Here we describe the genomes of eight newly sequenced isolates and combine them with the first four genomes for a comprehensive analysis of the core (shared by all isolates) and flexible genes of the Prochlorococcus group, and the patterns of loss and gain of the flexible genes over the course of evolution. There are 1,273 genes that represent the core shared by all 12 genomes. They are apparently sufficient, according to metabolic reconstruction, to encode a functional cell. We describe a phylogeny for all 12 isolates by subjecting their complete proteomes to three different phylogenetic analyses. For each non-core gene, we used a maximum parsimony method to estimate which ancestor likely first acquired or lost each gene. Many of the genetic differences among isolates, especially for genes involved in outer membrane synthesis and nutrient transport, are found within the same clade. Nevertheless, we identified some genes defining HL and LL ecotypes, and clades within these broad ecotypes, helping to demonstrate the basis of HL and LL adaptations in Prochlorococcus. Furthermore, our estimates of gene gain events allow us to identify highly variable genomic islands that are not apparent through simple pairwise comparisons. These results emphasize the functional roles, especially those connected to outer membrane synthesis and transport that dominate the flexible genome and set it apart from the core. Besides identifying islands and demonstrating their role throughout the history of Prochlorococcus, reconstruction of past gene gains and losses shows that much of the variability exists at the"leaves of the tree," between the most closely related strains. Finally, the identification of core and flexible genes from this 12-genome comparison is largely consistent with the relative frequency of Prochlorococcus genes found in global ocean metagenomic databases, further closing the gap between our understanding of these organisms in the lab and the wild.

  9. Control of resistive wall modes in a cylindrical tokamak with plasma rotation and complex gain

    E-Print Network [OSTI]

    Brennan, D P

    2014-01-01

    Feedback stabilization of magnetohydrodynamic (MHD) modes is studied in a cylindrical model for a tokamak with resistivity, viscosity and toroidal rotation. The control is based on a linear combination of the normal and tangential components of the magnetic field just inside the resistive wall. The feedback includes complex gain, for both the normal and for the tangential components, and the imaginary part of the feedback for the former is equivalent to plasma rotation. The work includes (1) analysis with a reduced resistive MHD model for a tokamak with finite \\beta and with stepfunction current density and pressure profiles, and (2) computations with full compressible visco-resistive MHD and smooth decreasing profiles of current density and pressure. The equilibria are stable for \\beta=0 and the marginal stability values $\\beta_{rp,rw}\\beta_{rp,iw}$ regime is presented.

  10. CSR induced microbunching gain estimation including transient effects in transport and recirculation arcs

    SciTech Connect (OSTI)

    Tsai, Cheng; Douglas, David R.; Li, Rui

    2015-09-01

    The coherent synchrotron radiation (CSR) of a high brightness electron beam traversing a series of dipoles, such as transport or recirculation arcs, may result in the microbunching instability (?BI). To accurately quantify the direct consequence of this effect, we further extend our previously developed semi-analytical Vlasov solver to include more relevant coherent radiation models than the steady-state free-space CSR impedance, such as the entrance and exit transient effects derived from upstream beam entering to and exiting from individual dipoles. The resultant microbunching gain functions and spectra for our example lattices are presented and compared with particle tracking simulation. Some underlying physics with inclusion of these effects are also discussed.

  11. Atomic loss and gain as a resource for non-equilibrium phase transitions in optical lattices

    E-Print Network [OSTI]

    Everest, Ben; Lesanovsky, Igor

    2015-01-01

    Recent breakthroughs in the experimental manipulation of strongly interacting atomic Rydberg gases in lattice potentials have opened a new avenue for the study of many-body phenomena. Considerable efforts are currently being undertaken to achieve clean experimental settings that show a minimal amount of noise and disorder and are close to zero temperature. A complementary direction investigates the interplay between coherent and dissipative processes. Recent experiments have revealed a first glimpse into the emergence of a rich non-equilibrium behavior stemming from the competition of laser excitation, strong interactions and radiative decay of Rydberg atoms. The aim of the present theoretical work is to show that local incoherent loss and gain of atoms can in fact be the source of interesting out-of-equilibrium dynamics. This perspective opens new paths for the exploration of non-equilibrium critical phenomena and, more generally, phase transitions, some of which so far have been rather difficult to study. T...

  12. Linear Vlasov solver for microbunching gain estimation with inclusion of CSR, LSC and linac geometric impedances

    E-Print Network [OSTI]

    Tsai, Cheng-Ying; Li, Rui; Tennant, Chris

    2015-01-01

    As is known, microbunching instability (MBI) has been one of the most challenging issues in designs of magnetic chicanes for short-wavelength free-electron lasers or linear colliders, as well as those of transport lines for recirculating or energy recovery linac machines. To more accurately quantify MBI in a single-pass system and for more complete analyses, we further extend and continue to increase the capabilities of our previously developed linear Vlasov solver [1] to incorporate more relevant impedance models into the code, including transient and steady-state free-space and/or shielding coherent synchrotron radiation (CSR) impedances, the longitudinal space charge (LSC) impedances, and the linac geometric impedances with extension of the existing formulation to include beam acceleration [2]. Then, we directly solve the linearized Vlasov equation numerically for microbunching gain amplification factor. In this study we apply this code to a beamline lattice of transport arc [3] following an upstream linac...

  13. Non-OPEC oil supply gains to outpace demand in 1997

    SciTech Connect (OSTI)

    Beck, R.J.

    1997-01-27

    Rising oil supplies in 1997 will relax some of the market tightness that drove up crude prices last year. Worldwide demand for petroleum products in 1996 rose faster than anticipated and faster than supply from outside the Organization of Petroleum Exporting Countries. This increased demand for OPEC oil and pushed up prices for crude. At year end, the world export price of crude was up more than 25% from the same period a year earlier. Market conditions will change in 1997. While worldwide economic growth will continue to boost demand for energy and petroleum, non-OPEC petroleum supply will grow even more. Increases in North Sea and Latin American production will help boost non-OPEC output by 1.9 million b/d. And revenues from 1996 production gains will make additional investment possible in exploration and production. The paper discusses world economic growth, world oil demand, worldwide supply, supply outlook, prices and international drilling.

  14. Large gain quantum-limited qubit measurement using a two-mode nonlinear cavity

    E-Print Network [OSTI]

    Saeed Khan; R. Vijay; I. Siddiqi; Aashish A. Clerk

    2014-12-05

    We provide a thorough theoretical analysis of qubit state measurement in a setup where a driven, parametrically-coupled cavity system is directly coupled to the qubit, with one of the cavities having a weak Kerr nonlinearity. Such a system could be readily realized using circuit QED architectures. We demonstrate that this setup is capable in the standard linear-response regime of both producing a highly amplified output signal while at the same time achieving near quantum-limited performance: the measurement backaction on the qubit is near the minimal amount required by the uncertainty principle. This setup thus represents a promising route for performing efficient large-gain qubit measurement that is completely on-chip, and that does not rely on the use of circulators or complex non-reciprocal amplifiers.

  15. Driving high-gain shock-ignited inertial confinement fusion targets by green laser light

    SciTech Connect (OSTI)

    Atzeni, Stefano; Marocchino, Alberto; Schiavi, Angelo [Dipartimento SBAI, Universita di Roma 'La Sapienza' and CNISM, Via A. Scarpa 14-16, I-00161 Roma (Italy)

    2012-09-15

    Standard direct-drive inertial confinement fusion requires UV light irradiation in order to achieve ignition at total laser energy of the order of 1 MJ. The shock-ignition approach opens up the possibility of igniting fusion targets using green light by reducing the implosion velocity and laser-driven ablation pressure. An analytical model is derived, allowing to rescale UV-driven targets to green light. Gain in the range 100-200 is obtained for total laser energy in the range 1.5-3 MJ. With respect to the original UV design, the rescaled targets are less sensitive to irradiation asymmetries and hydrodynamic instabilities, while operating in the same laser-plasma interaction regime.

  16. Diurnal heat storage in direct-gain passive-solar buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.; Neeper, D.A.

    1983-01-01

    This paper presents a simplified method for predicting temperature swings in direct-gain buildings. It is called the DHC method due to the use of a diurnal heat capacity (DHC). Diurnal heat capacity is a measure of the effective amount of heat stored during a sunny day and then released at night - the typical 24-hour diurnal cycle. This enables prediction of the maximum temperature swings experienced in the building and can be calculated using a single 24-hour harmonic. The advantage is that closed-form analytic solutions can be obtained for a variety of simple and layered-wall configurations. Higher harmonic components are accounted for by a correction factor. The method is suitable for us by hand or on a programmable calculator.

  17. Hodges residence: performance of a direct gain passive solar home in Iowa

    SciTech Connect (OSTI)

    Hodges, L.

    1980-01-01

    Results are presented for the performance of the Hodges residence, a 2200-square-foot earth-sheltered direct gain passive solar home in Ames, Iowa, during the 1979-80 heating season, its first occupied season. No night insulation was used on its 500 square feet of double-pane glass. Total auxiliary heat required was 43 GJ (41 MBtu) gross and 26 GJ (25 MBtu) net, amounting, respectively, to 60 and 36 kJ/C/sup 0/-day-m/sup 2/ (2.9 and 1.8 Btu/F/sup 0/-day-ft/sup 2/). The heating season was unusually cloudy and included the cloudiest January in the 21 years of Ames insolation measurements. Results are also presented for the performance of the hollowcore floor which serves as the main storage mass and for the comfort range in the house.

  18. Hodges residence: performance of a direct gain passive solar home in Iowa

    SciTech Connect (OSTI)

    Hodges, L.

    1980-01-01

    Results are presented for the performance of the Hodges Residence, a 2200-square-foot earth-sheltered direct gain passive solar home in Ames, Iowa, during the 1979-80 heating season, its first occupied season. No night insulation was used on its 500 square feet of double-pane glass. Total auxiliary heat required was 43 GJ (41 MBTU) gross and 26 GJ (25 MBTU) net, amounting, respectively, to 60 and 36 kJ/C/sup 0/-day-m/sup 2/ (2.9 and 1.8 BTU/F/sup 0/-day-ft/sup 2/). The heating season was unusually cloudy and included the cloudiest January in the 21 years of Ames insolation measurements. Results are also presented for the performance of the hollow-core floor which serves as the main storage mass and for the comfort range in the house.

  19. Method for increasing the rate of compressive strength gain in hardenable mixtures containing fly ash

    DOE Patents [OSTI]

    Liskowitz, J.W.; Wecharatana, M.; Jaturapitakkul, C.; Cerkanowicz, A.E.

    1997-10-28

    The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention provides a method for increasing the rate of strength gain of a hardenable mixture containing fly ash by exposing the fly ash to an aqueous slurry of calcium oxide (lime) prior to its incorporation into the hardenable mixture. The invention further relates to such hardenable mixtures, e.g., concrete and mortar, that contain fly ash pre-reacted with calcium oxide. In particular, the fly ash is added to a slurry of calcium oxide in water, prior to incorporating the fly ash in a hardenable mixture. The hardenable mixture may be concrete or mortar. In a specific embodiment, mortar containing fly ash treated by exposure to an aqueous lime slurry are prepared and tested for compressive strength at early time points. 2 figs.

  20. Method for increasing the rate of compressive strength gain in hardenable mixtures containing fly ash

    DOE Patents [OSTI]

    Liskowitz, John W. (Belle Mead, NJ); Wecharatana, Methi (Parsippany, NJ); Jaturapitakkul, Chai (Bangkok, TH); Cerkanowicz, deceased, Anthony E. (late of Livingston, NJ)

    1997-01-01

    The present invention relates to concrete, mortar and other hardenable mixtures comprising cement and fly ash for use in construction. The invention provides a method for increasing the rate of strength gain of a hardenable mixture containing fly ash by exposing the fly ash to an aqueous slurry of calcium oxide (lime) prior to its incorporation into the hardenable mixture. The invention further relates to such hardenable mixtures, e.g., concrete and mortar, that contain fly ash pre-reacted with calcium oxide. In particular, the fly ash is added to a slurry of calcium oxide in water, prior to incorporating the fly ash in a hardenable mixture. The hardenable mixture may be concrete or mortar. In a specific embodiment, mortar containing fly ash treated by exposure to an aqueous lime slurry are prepared and tested for compressive strength at early time points.

  1. When and how does a prominence-like jet gain kinetic energy?

    SciTech Connect (OSTI)

    Liu, Jiajia; Liu, Rui; Zhang, Quanhao; Liu, Kai; Shen, Chenglong; Wang, S.; Wang, Yuming

    2014-02-20

    A jet is a considerable amount of plasma being ejected from the chromosphere or lower corona into the higher corona and is a common phenomenon. Usually, a jet is triggered by a brightening or a flare, which provides the first driving force to push plasma upward. In this process, magnetic reconnection is thought to be the mechanism to convert magnetic energy into thermal, nonthermal, and kinetic energies. However, most jets could reach an unusual high altitude and end much later than the end of its associated flare. This fact implies that there is another way to continuously transfer magnetic energy into kinetic energy even after the reconnection. The picture described above is well known in the community, but how and how much magnetic energy is released through a way other than reconnection is still unclear. By studying a prominence-like jet observed by SDO/AIA and STEREO-A/EUVI, we find that the continuous relaxation of the post-reconnection magnetic field structure is an important process for a jet to climb up higher than it could through only reconnection. The kinetic energy of the jet gained through the relaxation is 1.6 times that gained from the reconnection. The resultant energy flux is hundreds of times larger than the flux required for the local coronal heating, suggesting that such jets are a possible source to keep the corona hot. Furthermore, rotational motions appear all the time during the jet. Our analysis suggests that torsional Alfvén waves induced during reconnection could not be the only mechanism to release magnetic energy and drive jets.

  2. GENOME ENABLED MODIFICATION OF POPLAR ROOT DEVELOPMENT FOR INCREASED CARBON SEQUESTRATION

    SciTech Connect (OSTI)

    Busov, Victor

    2013-03-05

    DR5 as a reporter system to study auxin response in Populus Plant Cell Reports 32:453-463 Auxin responsive promoter DR5 reporter system is functional in Populus to monitor auxin response in tissues including leaves, roots, and stems. We described the behavior of the DR5::GUS reporter system in stably transformed Populus plants. We found several similarities with Arabidopsis, including sensitivity to native and synthetic auxins, rapid induction after treatment in a variety of tissues, and maximal responses in root tissues. There were also several important differences from Arabidopsis, including slower time to maximum response and lower induction amplitude. Young leaves and stem sections below the apex showed much higher DR5 activity than did older leaves and stems undergoing secondary growth. DR5 activity was highest in cortex, suggesting high levels of auxin concentration and/or sensitivity in this tissue. Our study shows that the DR5 reporter system is a sensitive and facile system for monitoring auxin responses and distribution at cellular resolution in poplar. The Populus AINTEGUMENTA LIKE 1 homeotic transcription factor PtAIL1 controls the formation of adventitious root primordia. Plant Physiol. 160: 1996-2006 Adventitious rooting is an essential but sometimes rate-limiting step in the clonal multiplication of elite tree germplasm, because the ability to form roots declines rapidly with age in mature adult plant tissues. In spite of the importance of adventitious rooting, the mechanism behind this developmental process remains poorly understood. We have described the transcriptional profiles that are associated with the developmental stages of adventitious root formation in the model tree poplar (Populus trichocarpa). Transcriptome analyses indicate a highly specific temporal induction of the AINTEGUMENTA LIKE1 (PtAIL1) transcription factor of the AP2 family during adventitious root formation. Transgenic poplar samples that overexpressed PtAIL1 were able to grow an increased number of adventitious roots, whereas RNA interference mediated the down-expression of PtAIL1 expression, which led to a delay in adventitious root formation. Microarray analysis showed that the expression of 15 genes, including the transcription factors AGAMOUS-Like6 and MYB36, was overexpressed in the stem tissues that generated root primordia in PtAIL1-overexpressing plants, whereas their expression was reduced in the RNA interference lines. These results demonstrate that PtAIL1 is a positive regulator of poplar rooting that acts early in the development of adventitious roots. Genomes. 7: 91-101 Knowledge of the functional relationship between genes and organismal phenotypes in perennial plants is extremely limited. Using a population of 627 independent events, we assessed the feasibility of activation tagging as a forward genetics tool for Populus. Mutant identification after 2 years of field testing was nearly sevenfold (6.5%) higher than in greenhouse studies that employed Arabidopsis and identical transformation vectors. Approximately two thirds of all mutant phenotypes were not seen in vitro and in the greenhouse; they were discovered only after the second year of field assessment. The trees? large size (5-10 m in height), perennial growth, and interactions with the natural environment are factors that are thought to have contributed to the high rate of observable phenotypes in the field. The mutant phenotypes affected a variety of morphological and physiological traits, including leaf size and morphology, crown architecture, stature, vegetative dormancy, and tropic responses. Characterization of the insertion in more than 100 events with and without mutant phenotypes showed that tags predominantly (70%) inserted in a 13-Kbp region up- and downstream of the genes? coding regions with approximately even distribution among the 19 chromosomes. Transcriptional activation was observed in many proximal genes studied. Successful phenotype recapitulation was observed in 10 of 12 retransformed genes tested, indicating true tagging and a functiona

  3. Modeling water uptake by a root system growing in a fixed soil volume

    E-Print Network [OSTI]

    Albrieu, J L Blengino; Tarzia, D A

    2015-01-01

    The water uptake by roots of plants is examined for an ideal situation, with an approximation that resembles plants growing in pots, meaning that the total soil volume is fixed. We propose a coupled water uptake-root growth model. A one-dimensional model for water flux and water uptake by a root system growing uniformly distributed in the soil is presented, and the Van Genuchten model for the transport of water in soil is used. The governing equations are represented by a moving boundary model for which the root length, as a function of time, is prescribed. The solution of the model is obtained by front-fixing and finite element methods. Model predictions for water uptake by a same plant growing in loam, silt and clay soils are obtained and compared. A sensitivity analysis to determine relative effects on water uptake when system parameters are changed is also presented and shows that the model and numerical method proposed are more sensitive to the root growth rate than to the rest of the parameters. This se...

  4. An LED, fiber optic, gain monitoring system for a segmented scintillator array B.E. Bewer, R.E. Pywell , R. Igarashi 1

    E-Print Network [OSTI]

    Saskatchewan, University of

    An LED, fiber optic, gain monitoring system for a segmented scintillator array B.E. Bewer, R Keywords: Scintillator Gain monitor Fiber optics LED a b s t r a c t A gain monitoring system, which uses with a segmented, liquid scintillator neutron detector array. The system is designed to track neutron detector cell

  5. Laser Gain and Threshold Properties in Compressive-Strained and Lattice-Matched GaInNAs/GaAs Quantum Wells

    SciTech Connect (OSTI)

    Chow, W.W.; Jones, E.D.; Modine, N.A.; Allerman, A.A.; Kurtz, S.R.

    1999-08-04

    The optical gain spectra for compressive-strained and lattice-matched GaInNAs/GaAs quantum wells are computed using a microscopic laser theory. From these spectra, the peak gain and carrier radiative decay rate as functions of carrier density are determined. These dependences allow the study of lasing threshold current density for different GAInNAs/GaAs laser structures.

  6. Inclusive Search for Squark and Gluino Production in p(p)over-bar Collisions at root s = TeV

    E-Print Network [OSTI]

    Xie, Si

    We report on a search for inclusive production of squarks and gluinos in p(p) over-bar collisions at root s =

  7. Effect of glycine on chromosomal aberrations of Allium cepa L. root tips caused by sodium fluoride 

    E-Print Network [OSTI]

    Abid, Adeeba Al-Shahwani

    1967-01-01

    EFFECT OF GLYCINE ON CHROMOSOMAL ABERRATIONS OF ALLIUM CEPA L ~ ROOT TIPS CAUSED BY SODIUM FLUORIDE A Thesis By Adeeba Al-Shahvani Abid Submitted to the Graduate College of the Texas A&M University in partial fulfillment of the requirements... for the degree of MASTER OF SCIENCE August 1967 Major Subject Genetics EFFECT OF GLYCINE ON CHROMOSOMAL ABERRATIONS OF ALLIUM CEPA L, ROOT TIPS CAUSED BY SODIUM FLUORIDE A Thesis By Adeeba Al-Shahwani Abid Approved as to style and content by: ( airman...

  8. Microsecond gain-switched master oscillator power amplifier (1958 nm) with high pulse energy

    SciTech Connect (OSTI)

    Ke Yin; Weiqiang Yang; Bin Zhang; Ying Li; Jing Hou [College of Opto-electric Science and Engineering, National University of Defense Technology, Changsha 410073, Hunan (China)

    2014-02-28

    An all-fibre master oscillator power amplifier (MOPA) emitting high-energy pulses at 1958 nm is presented. The seed laser is a microsecond gain-switched thulium-doped fibre laser (TDFL) pumped with a commercial 1550-nm pulsed fibre laser. The TDFL operates at a repetition rate f in the range of 10 to 100 kHz. The two-stage thulium-doped fibre amplifier is built to scale the energy of the pulses generated by the seed laser. The maximum output pulse energy higher than 0.5 mJ at 10 kHz is achieved which is comparable with the theoretical maximum extractable pulse energy. The slope efficiency of the second stage amplifier with respect to the pump power is 30.4% at f = 10 kHz. The wavelength of the output pulse laser is centred near 1958 nm at a spectral width of 0.25 nm after amplification. Neither nonlinear effects nor significant amplified spontaneous emission (ASE) is observed in the amplification experiments. (lasers)

  9. Gain and tuning characteristics of mid-infrared InSb quantum dot diode lasers

    SciTech Connect (OSTI)

    Lu, Q.; Zhuang, Q.; Hayton, J.; Yin, M.; Krier, A.

    2014-07-21

    There have been relatively few reports of lasing from InSb quantum dots (QDs). In this work, type II InSb/InAs QD laser diodes emitting in the mid-infrared at 3.1??m have been demonstrated and characterized. The gain was determined to be 2.9?cm{sup ?1} per QD layer, and the waveguide loss was ?15?cm{sup ?1} at 4?K. Spontaneous emission measurements below threshold revealed a blue shift of the peak wavelength with increasing current, indicating filling of ground state heavy hole levels in the QDs. The characteristic temperature, T{sub 0}?=?101?K below 50?K, but decreased to 48?K at higher temperatures. The emission wavelength of these lasers showed first a blue shift followed by a red shift with increasing temperature. A hybrid structure was used to fabricate the laser by combining a liquid phase epitaxy grown p-InAs{sub 0.61}Sb{sub 0.13}P{sub 0.26} lower cladding layer and an upper n{sup +} InAs plasmon cladding layer which resulted in a maximum operating temperature (T{sub max}) of 120?K in pulsed mode, which is the highest reported to date.

  10. Doped Contacts for High-Longevity Optically Activated, High Gain GaAs Photoconductive Semiconductor Switches

    SciTech Connect (OSTI)

    MAR,ALAN; LOUBRIEL,GUILLERMO M.; ZUTAVERN,FRED J.; O'MALLEY,MARTIN W.; HELGESON,WESLEY D.; BROWN,DARWIN JAMES; HJALMARSON,HAROLD P.; BACA,ALBERT G.; THORNTON,R.L.; DONALDSON,R.D.

    1999-12-17

    The longevity of high gain GaAs photoconductive semiconductor switches (PCSS) has been extended to over 100 million pulses. This was achieved by improving the ohmic contacts through the incorporation of a doped layer that is very effective in the suppression of filament formation, alleviating current crowding. Damage-free operation is now possible with virtually infinite expected lifetime at much higher current levels than before. The inherent damage-free current capacity of the bulk GaAs itself depends on the thickness of the doped layers and is at least 100A for a dopant diffusion depth of 4pm. The contact metal has a different damage mechanism and the threshold for damage ({approx}40A) is not further improved beyond a dopant diffusion depth of about 2{micro}m. In a diffusion-doped contact switch, the switching performance is not degraded when contact metal erosion occurs, unlike a switch with conventional contacts. This paper will compare thermal diffusion and epitaxial growth as approaches to doping the contacts. These techniques will be contrasted in terms of the fabrication issues and device characteristics.

  11. V-220: Juniper Security Threat Response Manager Lets Remote Authentica...

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

    commands to execute arbitrary operating system commands with the privileges of the target web service. This can be exploited to gain shell access on the target device. IMPACT:...

  12. V-235: Cisco Mobility Services Engine Configuration Error Lets...

    Office of Environmental Management (EM)

    Users Execute Arbitrary Code and Local Users Gain Elevated Privileges V-076: Cisco Wireless LAN Controller Bugs Let Remote Users Deny Service and Remote Authenticated Users...

  13. Comparison of experimental and theoretical gain-current relations in GaInP quantum well lasers

    SciTech Connect (OSTI)

    Smowton, P.M.; Chow, W.W.; Blood, P.

    2000-01-10

    The authors compare the results of a microscopic laser theory with gain and recombination currents obtained from experimental spontaneous emission spectra. The calculated absorption spectrum is first matched to that measured on a laser, ensuring that the quasi-Fermi levels for the calculation and the experiment (spontaneous emission and gain) are directly related. This allows one to determine the inhomogeneous broadening in their experimental samples. The only other inputs to the theory are literature values of the bulk material parameter. The authors then estimate the non-radiative recombination current associated with the well and wave-guide core from a comparison of measured and calculated recombination currents.

  14. Observation of spectral gain narrowing in a high-order harmonic seeded soft-x-ray amplifier

    SciTech Connect (OSTI)

    Tissandier, F.; Sebban, S.; Ribiere, M.; Gautier, J.; Zeitoun, Ph.; Lambert, G.; Barszczak Sardinha, A.; Goddet, J.-Ph.; Burgy, F.; Lefrou, T.; Valentin, C.; Rousse, A.; Guilbaud, O.; Klisnick, A.; Nejdl, J.; Mocek, T.; Maynard, G. [Laboratoire d'Optique Appliquee, ENSTA Paristech/Ecole Polytechnique/CNRS UMR 7639, F-91761 Palaiseau Cedex (France); Laboratoire d'Interaction du Rayonnement X Avec la Matiere, Universite Paris Sud/CNRS UMR 8624, F-91495 Orsay Cedex (France); Department of X-ray Lasers, Institute of Physics, Na Slovance 2, CZ-182 21 Prague 8 (Czech Republic); Laboratoire de Physique des Gaz et des Plasmas, Universite Paris Sud/CNRS UMR 8578, F-91405 Orsay Cedex (France)

    2010-06-15

    We report an observation of spectral gain narrowing of a high-order harmonic amplified by a soft-x-ray optical-field-ionized plasma. The temporal coherence and spectral linewidth of both the seeded and unseeded soft-x-ray lasers were experimentally measured using a varying-path-difference interferometer. The results showed that the high-order harmonic is subject to a strong spectral narrowing during its propagation in the plasma amplifier without rebroadening at saturation. This is in good agreement with a radiative transfer calculation including gain narrowing and saturation rebroadening.

  15. Ratio of jet cross sections at root s=630 GeV and 1800 GeV

    E-Print Network [OSTI]

    Baringer, Philip S.; Bean, Alice; Coppage, Don; Hebert, C.

    2001-03-01

    The DO Collaboration has measured the inclusive jet cross section in (p) over barp collisions at roots = 630 GeV. The results for pseudorapidities \\ eta \\ < 0.5 are combined with our previous results at roots = 1800 GeV ...

  16. ARBUSCULAR MYCORRHIZAL COLONIZATION OF LARREA TRIDENTATA AND AMBROSIA DUMOSA ROOTS VARIES WITH PRECIPITATION AND SEASON IN THE MOJAVE DESERT

    SciTech Connect (OSTI)

    M. E. APPLE; C. I. THEE; V. L. SMITH-LONGOZO; C. R. COGAR; C. E. WELLS; R. S. NOWAK

    2004-01-01

    The percentage of fine roots colonized by arbuscular mycorrhizal (AM) fungi varied with season and with species in the co-dominant shrubs Lurreu tridentutu and Ambrosia dumosu at a site adjacent to the Nevada Desert FACE (Free-Air CO{sub 2} Enrichment) Facility (NDFF) in the Mojave Desert. We excavated downward and outward from the shrub bases in both species to collect and examine fine roots (< 1.0 mm diameter) at monthly intervals throughout 2001 and from October 2002 to September 2003. Fungal structures became visible in cleared roots stained with trypan blue. We quantified the percent colonization of roots by AM fungi via the line intercept method. In both years and for both species, colonization was highest in fall, relatively low in spring when root growth began, increased in late spring, and decreased during summer drought periods. Increases in colonization during summer and fall reflect corresponding increases in precipitation. Spring mycorrhizal colonization is low despite peaks in soil water availability and precipitation, indicating that precipitation is not the only factor influencing mycorrhizal colonization. Because the spring decrease in mycorrhizal colonization occurs when these shrubs initiate a major flush of fine root growth, other phenological events such as competing demands for carbon by fine root initiation, early season shoot growth, and flowering may reduce carbon availability to the fungus, and hence decrease colonization. Another possibility is that root growth exceeds the rate of mycorrhizal colonization.

  17. Contrasting hydraulic architecture and function in deep and shallow roots of tree species from a semi-arid habitat

    E-Print Network [OSTI]

    Jackson, Robert B.

    Contrasting hydraulic architecture and function in deep and shallow roots of tree species from of tomography for vessel network analysis and the important role of 3-D xylem organization in plant hydraulic Root water uptake and hydraulic transport through xylem are critical for plant functioning and survival

  18. EFFECT OF NOTCH ROOT RADIUS ON THE CREEP FAILURE MECHANISMS ON PALYAMIDE 6: APPLICATION OF FRACTURE MECHANICS APPROACHES

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    . An experimental database consisting of creep tests performed on notched round bars with various notch root radii, according to the notch root radius. Notch opening displacement vs. time was recorded for each creep test modelling. The simulation of creep tests on two specific notched specimens could successfully predict

  19. A numerical method for predicting the bending fatigue life of NiTi and stainless steel root canal

    E-Print Network [OSTI]

    Zheng, Yufeng

    A numerical method for predicting the bending fatigue life of NiTi and stainless steel root canal. A numerical method for predicting the bending fatigue life of NiTi and stainless steel root canal instruments­titanium alloy (NiTi) and stainless steel (SS) endodontic files using finite element analysis. Methodology

  20. The Calculus of Variations The variational principles of mechanics are firmly rooted in the

    E-Print Network [OSTI]

    Hunter, John K.

    LECTURE 3 The Calculus of Variations The variational principles of mechanics are firmly rooted in the soil of that great century of Liberalism which starts with Descartes and ends with the French, from geometry to optimization to mechanics, and it has grown so large that it is difficult to describe

  1. Back to the Roots: A Probabilistic Framework for Query-Performance Prediction

    E-Print Network [OSTI]

    Kurland, Oren

    Back to the Roots: A Probabilistic Framework for Query-Performance Prediction Oren Kurland1 kurland substan- tially in their basic principles, and rely on diverse hypotheses about the characteristics with a basic question that has not been explicitly addressed in

  2. Influence of fertilization on nutrient status and size of bare-root Pinus taeda L. seedlings 

    E-Print Network [OSTI]

    Wall, Margot Marie

    1994-01-01

    fertilized with either pre-plant nitrogen, top-dress nitrogen or top-dress magnesium. Nitrogen was supplied as ammonium nitrate(NH,N03) and magnesium as magnesium sulfate(MgSO,*7H20)' Seedlings were evaluated after ten weeks for shoot length, root length...

  3. Determining root causes of drilling problems by combining cases and general knowledge

    E-Print Network [OSTI]

    Aamodt, Agnar

    -based, knowledge intensive, oil well drilling 1 Introduction Drilling of oil wells is an expensive offshore based reasoning to improve efficiency of oil well drilling. Their focus was on lost circulation, whichDetermining root causes of drilling problems by combining cases and general knowledge Samad

  4. Integral Modular Categories and Integrality of Quantum Invariants at Roots of Unity of

    E-Print Network [OSTI]

    Masbaum, Gregor

    Integral Modular Categories and Integrality of Quantum Invariants at Roots of Unity of Prime Order G. Masbaum H. Wenzl May 29, 1998 \\Lambda Abstract It is shown how to deduce integrality properties of quantum 3­manifold invari­ ants from the existence of integral subcategories of modular categories

  5. Wiseman et al.: Organic Amendment Effects in the Root Zone 2012 International Society of Arboriculture

    E-Print Network [OSTI]

    Virginia Tech

    microor- ganisms are integral to the soil food web because of their role in the decomposition of organicWiseman et al.: Organic Amendment Effects in the Root Zone ©2012 International Society of Arboriculture 262 P. Eric Wiseman, Susan D. Day, and J. Roger Harris Organic Amendment Effects on Soil Carbon

  6. Reduction of Ultrametric Minimum Cost Spanning Tree Games to Cost Allocation Games on Rooted

    E-Print Network [OSTI]

    RIMS-1674 Reduction of Ultrametric Minimum Cost Spanning Tree Games to Cost Allocation Games Allocation Games on Rooted Trees Kazutoshi Ando and Shinji Kato June 2009 Abstract A minimum cost spanning tree game is called ultrametric if the cost function on the edges of the underlying network

  7. Reduction of Ultrametric Minimum Cost Spanning Tree Games to Cost Allocation Games on Rooted

    E-Print Network [OSTI]

    RIMS­1674 Reduction of Ultrametric Minimum Cost Spanning Tree Games to Cost Allocation Games Allocation Games on Rooted Trees Kazutoshi Ando # and Shinji Kato + June 2009 Abstract A minimum cost spanning tree game is called ultrametric if the cost function on the edges of the underlying network

  8. One-, two-, and three-dimensional root water uptake functions for transient modeling

    E-Print Network [OSTI]

    Vrugt, Jasper A.

    One-, two-, and three-dimensional root water uptake functions for transient modeling J. A. Vrugt, Netherlands J. W. Hopmans Hydrology Program, Department of Land, Air and Water Resources (LAWR), University of California, Riverside, California, USA Abstract. Although solutions of multidimensional transient water flow

  9. The Euler Tour Technique and Parallel Rooted Spanning Tree Guojing Cong, David A. Bader

    E-Print Network [OSTI]

    Bader, David A.

    to define some structural relations on the This work was supported in part by NSF Grants CAREER ACI-00-93039, ITR ACI-00-81404, DEB-99-10123, ITR EIA-01- 21377, Biocomplexity DEB-01-20709, and ITR EF/BIO 03-31654. 1 #12;vertices. The standard approach for finding a rooted spanning tree combines two algorithms

  10. Communication by Plant Growth Regulators in Roots and Shoots of Horticultural Crops

    E-Print Network [OSTI]

    Burns, Jacqueline K.

    Communication by Plant Growth Regulators in Roots and Shoots of Horticultural Crops Anish Malladi, and distribution of PGRs communicate developmental, stress-related, or environmental cues that alter growth. Short-distance communication involves changes in biosynthesis or metabolic conversion, whereas longer-distance communication

  11. The high energy semiclassical asymptotics of loci of roots of fundamental solutions for polynomial potentials

    E-Print Network [OSTI]

    Stefan Giller

    2008-05-24

    In the case of polynomial potentials all solutions to 1-D Schroedinger equation are entire functions totally determined by loci of their roots and their behaviour at infinity. In this paper a description of the first of the two properties is given for fundamental solutions for the high complex energy limit when the energy is quantized or not. In particular due to the fact that the limit considered is semiclassical it is shown that loci of roots of fundamental solutions are collected of selected Stokes lines (called exceptional) specific for the solution considered and are distributed along these lines in a specific way. A stable asymptotic limit of loci of zeros of fundamental solutions on their exceptional Stokes lines has island forms and there are infintely many of such roots islands on exceptional Stokes lines escaping to infinity and a finite number of them on exceptional Stokes lines which connect pairs of turning points. The results obtained for asymptotic roots distributions of fundamental solutions in the semiclassical high (complex) energy limit are of a general nature for polynomial potentials.

  12. A Nuclear-Targeted Cameleon Demonstrates Intranuclear Spiking in Medicago truncatula Root Hairs in

    E-Print Network [OSTI]

    Monin, André

    A Nuclear-Targeted Cameleon Demonstrates Intranuclear Ca2+ Spiking in Medicago truncatula Root use of a nucleoplasmin-tagged cameleon (NupYC2.1). Confocal microscopy using this nuclear-specific calcium reporter has revealed sustained and regular Ca2+ spiking within the nuclear compartment

  13. Effect of phytotoxic solutions on the respiration of mycorrhizal and non-mycorrhizal spruce roots

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    extracts The plant material (Vaccinium myrtillus and Athyrium filix-femina) was harvested in the sub was then extracted in water by stirring for 12 h in demineralized water (1% concentra- tion), filtered at 4°C-mycorrhizal roots were placed in the presence of a plant extract or humus solu- tion. Materials and Methods Plant

  14. Distribution of Fine Roots of Ponderosa Pine and Douglas-Fir in a Central Idaho Forest

    E-Print Network [OSTI]

    Fried, Jeremy S.

    at a study site in a central Idaho forest. Concentration and content of fine roots extracted from soil cores of exotic dis- eases, heavy grazing, and timber harvest has altered forest structure, stand composition(SwezyandAgee1991,Dumm2003).Finerootsarecritical structures for water and nutrient absorption from the soil

  15. On the Lorentz invariance of the Square root Klein-Gordon Equation

    E-Print Network [OSTI]

    Mohammad Javad Kazemi; Mohammad H. Barati; Jafar Khodagholizadeh; Alireza Babazadeh

    2015-06-17

    We show that the Born's rule is incompatible with Lorentz symmetry of the Square Root Klein-Gordon equation (SRKG equation). It has been demonstrated that the Born rule must be modified in relativistic regime if one wishes to keep the SRKG equation as the correct equation for describing quantum behavior.

  16. Root-n consistent density estimators of convolutions in weighted L1-norms

    E-Print Network [OSTI]

    Wefelmeyer, Wolfgang

    Root-n consistent density estimators of convolutions in weighted L1-norms Anton Schick and Wolfgang. Anton Schick was supported by NSF Grant DMS 0405791. 1 #12;2 ANTON SCHICK AND WOLFGANG WEFELMEYER-n rates in L1-spaces. It follows from Schick and Wefelmeyer (2004) that under appropriate conditions on f

  17. Root n consistent density estimators for sums of independent random variables

    E-Print Network [OSTI]

    Wefelmeyer, Wolfgang

    Root n consistent density estimators for sums of independent random variables Anton Schick > 1 independent and identically distributed random variables can be estimated at the Anton Schick was partially supported by NSF Grant DMS 0072174. 1 #12;2 ANTON SCHICK AND WOLFGANG WEFELMEYER parametric rate n

  18. Root finding in the complex plane for seismo-acoustic propagation scenarios with Green's function solutions

    E-Print Network [OSTI]

    Root finding in the complex plane for seismo-acoustic propagation scenarios with Green's function waveguide with an elastic bottom using a Green's function formulation for a compressional wave point source modes of energy. The eigenvalues arise as singularities in the inverse Hankel transform integral

  19. Modeling soil respiration based on carbon, nitrogen, and root mass across diverse Great Lake forests

    E-Print Network [OSTI]

    Chen, Jiquan

    . Introduction Linkages between atmospheric carbon dioxide and global thermal properties have forcedModeling soil respiration based on carbon, nitrogen, and root mass across diverse Great Lake the examination of biospheric carbon flows and pools. Variability in carbon storage or the net ecosystem exchange

  20. Back to the Roots From Polynomial System Solving to Linear Algebra

    E-Print Network [OSTI]

    Back to the Roots ­ From Polynomial System Solving to Linear Algebra Philippe Dreesen Bart De Moor systems of polynomial equations have been developed in the area of algebraic geometry. A large body in this research area require exact algebraic computations and suffer from numerical issues. We present a method

  1. Carbon concentration variations in the roots, stem and crown of mature Pinus pinaster (Ait.)

    E-Print Network [OSTI]

    Bert, Didier

    Carbon concentration variations in the roots, stem and crown of mature Pinus pinaster (Ait.) Didier. Evaluations of carbon fixation and storage in this forest are facilitated by its general homogeneity for expansion factors and carbon concentration in the biomass, and more accurate results could be obtained

  2. Biomaterials 26 (2005) 33633376 Age-related transparent root dentin: mineral concentration, crystallite

    E-Print Network [OSTI]

    Ritchie, Robert

    2005-01-01

    Biomaterials 26 (2005) 3363­3376 Age-related transparent root dentin: mineral concentration that indicate elastic asym- metry would be determined not by the orientation of the ARTICLE IN PRESS www.elsevier.com/locate/biomaterials 0142-9612/$ - see front matter r 2004 Elsevier Ltd. All rights reserved. doi:10.1016/j.biomaterials

  3. Root Morphological and Physiological Bases to Understand Genotypic Control of Mineral Acquisition in Rice Grains 

    E-Print Network [OSTI]

    Chittoori, Ratnaprabha 1982-

    2012-11-28

    differences. 2. Root traits of high grain-Mo genotypes and acid tolerance ? Most of the genotypes selected for high grain-Mo originated from Malaysia, or nearby Brunei, characterized by acidic soils where Mo is strongly adsorbed to soil and not readily...

  4. 70 J. Environ. Hort. 27(2):7079. June 2009 Arbuscular Mycorrhizal Inoculation Affects Root

    E-Print Network [OSTI]

    Virginia Tech

    in situ using minirhizotrons. One year after transplant, AMF colonization levels had increased in three colonization, mycorrhizal inoculation. Species used in this study: Acer buergerianum Miq. [trident maple], Acer nutrition. Commercial AMF inoculants are generally mar- keted on the claim that they will increase root

  5. Strange particle production in p+p collisions at root s=200 GeV 

    E-Print Network [OSTI]

    Abelev, B. I.; Adams, J.; Aggarwal, M. M.; Ahammed, Z.; Amonett, J.; Anderson, B. D.; Anderson, M.; Arkhipkin, D.; Averichev, G. S.; Bai, Y.; Balewski, J.; Barannikova, O.; Barnby, L. S.; Baudot, J.; Bekele, S.; Belaga, V. V.; Bellingeri-Laurikainen, A.; Bellwied, R.; Benedosso, F.; Bhardwaj, S.; Bhasin, A.; Bhati, A. K.; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Bland, L. C.; Blyth, S. -L; Bonner, B. E.; Botje, M.; Bouchet, J.; Brandin, A. V.; Bravar, A.; Burton, T. P.; Bystersky, M.; Cadman, R. V.; Cai, X. Z.; Caines, H.; Calderon de la Barca Sanchez,M.; Castillo, J.; Catu, O.; Cebra, D.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, H. F.; Chen, J. H.; Cheng, J.; Cherney, M.; Chikanian, A.; Christie, W.; Coffin, J. P.; Cormier, T. M.; Cosentino, M. R.; Cramer, J. G.; Crawford, H. J.; Das, D.; Das, S.; Dash, S.; Daugherity, M.; de Moura, M. M.; Dedovich, T. G.; DePhillips, M.; Derevschikov, A. A.; Didenko, L.; Dietel, T.; Djawotho, P.; Dogra, S. M.; Dong, W. J.; Dong, X.; Draper, J. E.; Du, F.; Dunin, V. B.; Dunlop, J. C.; Dutta Mazumdar, M. R.; Eckardt, V.; Edwards, W. R.; Efimov, L. G.; Emelianov, V.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Fachini, P.; Fatemi, R.; Fedorisin, J.; Filimonov, K.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Fu, J.; Gagliardi, Carl A.; Gaillard, L.; Ganti, M. S.; Ghazikhanian, V.; Ghosh, P.; Gonzalez, J. E.; Gorbunov, Y. G.; Gos, H.; Grebenyuk, O.; Grosnick, D.; Guertin, S. M.; Guimaraes, K. S. F. F.; Gupta, A.; Gutierrez, T. D.; Haag, B.; Hallman, T. J.; Hamed, A.; Harris, J. W.; He, W.; Heinz, M.; Henry, T. W.; Hepplemann, S.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffman, A. M.; Hoffmann, G. W.; Horner, M. J.; Huang, H. Z.; Huang, S. L.; Hughes, E. W.; Humanic, T. J.; Igo, G.; Jacobs, P.; Jacobs, W. W.; Jakl, P.; Jia, F.; Jiang, H.; Jones, P. G.; Judd, E. G.; Kabana, S.; Kang, K.; Kapitan, J.; Kaplan, M.; Keane, D.; Kechechyan, A.; Khodyrev, V. Yu; Kim, B. C.; Kiryluk, J.; Kisiel, A.; Kislov, E. M.; Klein, S. R.; Kocoloski, A.; Koetke, D. D.; Kollegger, T.; Kopytine, M.; Kotchenda, L.; Kouchpil, V.; Kowalik, K. L.; Kramer, M.; Kravtsov, P.; Kravtsov, V. I.; Krueger, K.; Kuhn, C.; Kulikov, A. I.; Kumar, A.; Kuznetsov, A. A.; Lamont, M. A. C.; Landgraf, J. M.; Lange, S.; LaPointe, S.; Laue, F.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, C. -H; Lehocka, S.; LeVine, M. J.; Li, C.; Li, Q.; Li, Y.; Lin, G.; Lin, X.; Lindenbaum, S. J.; Lisa, M. A.; Liu, F.; Liu, H.; Liu, J.; Liu, L.; Liu, Z.; Ljubicic, T.; Llope, W. J.; Long, H.; Longacre, R. S.; Love, W. A.; Lu, Y.; Ludlam, T.; Lynn, D.; Ma, G. L.; Ma, J. G.; Ma, Y. G.; Magestro, D.; Mahapatra, D. P.; Majka, R.; Mangotra, L. K.; Manweiler, R.; Margetis, S.; Markert, C.; Martin, L.; Matis, H. S.; Matulenko, Yu A.; McClain, C. J.; McShane, T. S.; Melnick, Yu; Meschanin, A.; Millane, J.; Miller, M. L.; Minaev, N. G.; Mioduszewski, Saskia; Mironov, C.; Mischke, A.; Mishra, D. K.; Mitchell, J.; Mohanty, B.; Molnar, L.; Moore, C. F.; Morozov, D. A.; Munhoz, M. G.; Nandi, B. K.; Nattrass, C.; Nayak, T. K.; Nelson, J. M.; Netrakanti, P. K.; Nogach, L. V.; Nurushev, S. B.; Odyniec, G.; Ogawa, A.; Okorokov, V.; Oldenburg, M.; Olson, D.; Pachr, M.; Pal, S. K.; Panebratsev, Y.; Panitkin, S. Y.; Pavlinov, A. I.; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Phatak, S. C.; Picha, R.; Planinic, M.; Pluta, J.; Poljak, N.; Porile, N.; Porter, J.; Poskanzer, A. M.; Potekhin, M.; Potrebenikova, E.; Potukuchi, B. V. K. S.; Prindle, D.; Pruneau, C.; Putschke, J.; Rakness, G.; Raniwala, R.; Raniwala, S.; Ray, R. L.; Razin, S. V.; Reinnarth, J.; Relyea, D.; Retiere, F.; Ridiger, A.; Ritter, H. G.; Roberts, J. B.; Rogachevskiy, O. V.; Romero, J. L.; Rose, A.; Roy, C.; Ruan, L.; Russcher, M. J.; Sahoo, R.; Sakuma, T.; Salur, S.; Sandweiss, J.; Sarsour, M.; Sazhin, P. S.; Schambach, J.; Scharenberg, R. P.; Schmitz, N.; Schweda, K.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shabetai, A.; Shahaliev, E.; Shao, M.; Sharma, M.; Shen, W. Q.; Shimanskiy, S. S.; Sichtermann, E.; Simon, F.; Singaraju, R. N.; Smirnov, N.; Snellings, R.; Sood, G.; Sorensen, P.; Sowinski, J.; Speltz, J.; Spinka, H. M.; Srivastava, B.; Stadnik, A.; Stanislaus, T. D. S.; Stock, R.; Stolpovsky, A.; Strikhanov, M.; Stringfellow, B.; Suaide, A. A. P.; Sugarbaker, E.; Sumbera, M.; Sun, Z.; Surrow, B.; Swanger, M.; Symons, T. J. M.; de Toledo, A. Szanto; Tai, A.; Takahashi, J.; Tang, A. H.; Tarnowsky, T.; Thein, D.; Thomas, J. H.; Timmins, A. R.; Timoshenko, S.; Tokarev, M.; Trainor, T. A.; Trentalange, S.; Tribble, Robert E.; Tsai, O. D.; Ulery, J.; Ullrich, T.; Underwood, D. G.; Van Buren, G.; van der Kolk, N.; van Leeuwen, M.; Vander Molen, A. M.; Varma, R.; Vasilevski, I. M.; Vasiliev, A. N.; Vernet, R.; Vigdor, S. E.

    2007-01-01

    We present strange particle spectra and yields measured at midrapidity in root s = 200 GeV proton-proton (p + p) collisions at the BNL Relativistic Heavy Ion Collider (RHIC). We find that the previously observed universal transverse mass (m...

  6. Effect of Root-Derived Substrates on the Expression of nah-lux Genes in

    E-Print Network [OSTI]

    Alvarez, Pedro J.

    -derived substrates (e.g., sugars, carboxylic acids, amino acids, and phenolics) on the expression of nahG, one of the genes responsible for naphthalene dioxygenase transcription. Whereas nahG was induced by some phenolic degradation assays. However, treatments with root extracts exhibited significantly higher microbial growth

  7. Nonlinear root-derived carbon sequestration across a gradient of nitrogen and phosphorous deposition

    E-Print Network [OSTI]

    Jackson, Robert B.

    Nonlinear root-derived carbon sequestration across a gradient of nitrogen and phosphorous sequestration of plant-carbon (C) inputs to soil may mitigate rising atmo- spheric carbon dioxide (CO2) concentrations and related climate change but how this sequestration will respond to anthropogenic nitrogen (N

  8. http://www.up.ac.za/academic/fabi/tpcp/pamphlets/phytophthora.htm PHYTOPHTHORA ROOT AND COLLAR

    E-Print Network [OSTI]

    http://www.up.ac.za/academic/fabi/tpcp/pamphlets/phytophthora.htm PHYTOPHTHORA ROOT AND COLLAR ROT cold weather the fungus survives as oospores, chlamydospores http://www.up.ac.za/academic/fabi/tpcp/pamphlets/phytophthora.htm (1 of 4) [2002/02/26 01:54:52] #12;http://www.up.ac.za/academic/fabi/tpcp/pamphlets

  9. Microanalysis of the reaction product in Karnovsky and Roots histochemical localization of acetylcholinesterase

    SciTech Connect (OSTI)

    Tewari, J.P.; Sehgal, S.S.; Malhotra, S.K.

    1982-05-01

    X-ray energy dispersive microanalysis of the reaction product in Karnovsky and Roots histochemical localization of acetylcholinesterase indicated the presence of sulfur, iodine, copper, and iron. The reaction was run in vitro using purified acetylcholinesterase from the electric eel to confirm our previous results on similarly treated neuromuscular junction in situ.

  10. Annosus Root Disease in Europe and the Southeastern United States: Occurrence, Research, and Historical Perspective'

    E-Print Network [OSTI]

    History #12;Annosus Root Disease in Europe and the Southeastern United States: Occurrence disease in Europe and the southeastern United States is reviewed in prefacing the focus. This mode of spread has accounted for a long history of damage in Europe where losses occur as: (1

  11. Launched a field test site dedicated to Armillaria root rot research next to the

    E-Print Network [OSTI]

    · Launched a field test site dedicated to Armillaria root rot research next to the MAES Northwest a dedicated test site near Traverse City -- the heart of Michigan's cherry industry. The new site will make. The dedicated test site is criti- cal because the disease is slow to develop and requires years of con- tinuous

  12. Abstract--Health management systems have been gaining substantial attentions in power engineering areas in recent years

    E-Print Network [OSTI]

    Chow, Mo-Yuen

    , knowledge of the managed system is the most crucial aspect [1]. Data mining, also called Knowledge Discovery and nuclear power plant showed great interest in health management systems since the failuresAbstract--Health management systems have been gaining substantial attentions in power engineering

  13. Preprint version of Nicholson, S. & Stanton, J. (2003). Gaining strategic advantage through bibliomining: Data mining for management

    E-Print Network [OSTI]

    Nicholson, Scott

    2003-01-01

    to improve customer service, manage acquisition budgets, or influence strategic decision-making about usesPreprint version of Nicholson, S. & Stanton, J. (2003). Gaining strategic advantage through bibliomining: Data mining for management decisions in corporate, special, digital, and traditional libraries

  14. Directional Sensor Control for Maximizing Information Gain Shankarachary Ragia, Hans D. Mittelmannb, and Edwin K. P. Chonga

    E-Print Network [OSTI]

    Mittelmann, Hans D.

    , infrared sensors, and ultrasound sensors. These sensors are becoming increasingly important due to a wide locations are evaluated. Our goal is to assign each sensor to a particular direction such that the overallDirectional Sensor Control for Maximizing Information Gain Shankarachary Ragia, Hans D. Mittelmannb

  15. Energy gain spectroscopic study of Ar{sup q+}-Ar collisions at 40 qeV

    SciTech Connect (OSTI)

    Vancura, J.; Kostroun, V.O.

    1992-12-31

    Energy gain spectra of Ar{sup q+}(8 {le} q {le} 16) on Ar at 40 qeV collision energy and 0.4 qeV energy resolution are presented. Capture into definite states of the projectile is observed which seems to exhibit a definite even-odd projectile charge state dependence.

  16. DFIG-Based Wind Turbine Robust Control Using High-Order Sliding Modes and a High Gain Observer

    E-Print Network [OSTI]

    Brest, Université de

    DFIG-Based Wind Turbine Robust Control Using High-Order Sliding Modes and a High Gain Observer with the power generation control in variable speed wind turbines. In this context, a control strategy is proposed to ensure power extraction optimization of a DFIG- based wind turbine. The proposed control

  17. Common Base Amplifier with 7-dB gain at 176 GHz in InP mesa DHBT Technology

    E-Print Network [OSTI]

    Rodwell, Mark J. W.

    power gain at 150.2 GHz. Index Terms -- InP heterojunction bipolar transistor, millimeter-wave amplifier Barbara, CA 93106, USA A. Fung, L. Samoska California Institute of Technology Jet Propulsion Laboratory, Pasadena, CA 91109, USA Abstract -- We report common base power amplifiers designed for 140-220-GHz

  18. Tunable millimeter-wave generation with subharmonic injection locking in two-section strongly gain-coupled DFB lasers

    E-Print Network [OSTI]

    Hong, Jin; Hui, Rongqing

    2000-05-01

    Using two-section dual-mode strongly gain-coupled (SGC) distributed feedback (DFB) lasers, tunable millimeter-wave (mm-wave) generation from 18 to 40 GHz can be achieved under CW bias conditions, Due to its high speed and excellent dynamic single...

  19. Self-Tuning PI TCP Flow Controller for AQM Routers With Interval Gain and Phase Margin Assignment

    E-Print Network [OSTI]

    Huang, Changcheng

    -tuning proportional-integral (PI) controller for Active Queue Management (AQM) in the Internet. Classical control to achieve good AQM performance while adapting the AQM control system to great traffic load changes very well Queue Management, PI Control, Gain Margin, Phase Margin, Self-Tune 1. INTRODUCTION Congestion control

  20. Aalborg Universitet Fuzzy-Logic-Based Gain-Scheduling Control for State-of-Charge Balance of Distributed

    E-Print Network [OSTI]

    Vasquez, Juan Carlos

    nature of renewable energy sources and changes of load demand. Apart from that, the use of distributed of Distributed Energy Storage Systems for DC Microgrids Aldana, Nelson Leonardo Diaz; Dragicevic, Tomislav-Logic-Based Gain-Scheduling Control for State-of-Charge Balance of Distributed Energy Storage Systems for DC

  1. A Study of the Generalized Input-to-State L2-Gain of Discrete-Time Switched Linear Systems

    E-Print Network [OSTI]

    Shen, Jinglai

    of switched linear systems under average dwell time constraints were given in [8]. The design of switching is proposed to study the stability of autonomous switched linear systems. These functions are power seriesA Study of the Generalized Input-to-State L2-Gain of Discrete-Time Switched Linear Systems Vamsi

  2. 1356 IEEE TRANSACTIONS ON COMMUNICATIONS, VOL. 50, NO. 8, AUGUST 2002 Antenna Gain Against Interference in CDMA

    E-Print Network [OSTI]

    Yanikomeroglu, Halim

    communications. I. INTRODUCTION THE CDMA1 reverse-link capacity of a network of antenna elements (AEs) is investigated in [1]. It is reported there that the capacity increases linearly with the number of AEs and it is further stated that this linear gain is valid irrespective of the user2 and AE positions (as long

  3. The distribution of natural numbers divisible by 2,3,5,11,13 and 17 on the Square Root Spiral

    E-Print Network [OSTI]

    Harry K. Hahn

    2008-01-29

    The natural numbers divisible by the Prime Factors 2, 3, 5, 11, 13 and 17 lie on defined spiral graphs, which run through the Square Root Spiral. A mathematical analysis shows, that these spiral graphs are defined by specific quadratic polynomials. Basically all natural number which are divisible by the same prime factor lie on such spiral graphs. And these spiral graphs can be assigned to a certain number of Spiral Graph Systems, which have a defined spatial orientation to each other. This document represents a supplementation to my detailed introduction study to the Square Root Spiral, and it contains the missing diagrams and analyses, showing the distribution of the natural numbers divisible by 2, 3, 5, 11, 13 and 17 on the Square Root Spiral. My introduction study to the Square Root Spiral can be found in the arxiv-archive. The title of this study : The ordered distribution of the natural numbers on the Square Root Spiral.

  4. Measuring the efficacy of a root biobarrier with x-ray computed tomography

    SciTech Connect (OSTI)

    Tollner, E.W.; Murphy, C.E. Jr. . Dept. of Agricultural Engineering)

    1990-08-16

    X-ray computed tomography is a useful tool for investigating soil physical properties nondestructively. There is a need to develop proper calibration relationships between soil properties and the x-ray absorption coefficient. The objective of the work was to evaluate soil factors affecting the x-ray absorption coefficient. Based on a theoretical analysis, experimental data from five soils and on results of several other investigators, it was concluded that for many applications, one calibration relationship is applicable to a wide range of soils. The montmorillinitic clay used in the study required special handling due to the extreme shrinkage of this soil upon drying. Knowledge of chemical composition enables approximations but not exact predictions of the x-ray absorption coefficient. The results suggested some reasonable alternative to exhaustive calibration for each anticipated soil condition. Quantification of root activity in terms of root growth and indirectly through water uptake is necessary for understanding plant growth dynamics. X-ray computed tomography (CT) enables qualitative as well as two quantitative outputs, one of which can lead to conclusions regarding root activity. A greenhouse study involving soil columns (Lakeland sand, bulk density 1.4 Mg/m{sup 3}) planted to soybean, Bahiagras, and control (no vegetation) was conducted in 1989. A treflan based on chemical barrier was placed in half of the soil column of each species. The mean x-ray absorption correlated to water content. Results suggested that root presence can also be indirectly inferred based on water content drawn down during planned stress events. It was concluded that x-ray CT may have a niche in soil-water-plant relation studies, particularly when plant species have large roots. 35 refs., 13 figs., 8 tabs.

  5. Control of linear modes in cylindrical resistive magnetohydrodynamics with a resistive wall, plasma rotation, and complex gain

    SciTech Connect (OSTI)

    Brennan, D. P. [Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08544 (United States); Finn, J. M. [Applied Mathematics and Plasma Physics, Theoretical Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

    2014-10-15

    Feedback stabilization of magnetohydrodynamic (MHD) modes in a tokamak is studied in a cylindrical model with a resistive wall, plasma resistivity, viscosity, and toroidal rotation. The control is based on a linear combination of the normal and tangential components of the magnetic field just inside the resistive wall. The feedback includes complex gain, for both the normal and for the tangential components, and it is known that the imaginary part of the feedback for the former is equivalent to plasma rotation [J. M. Finn and L. Chacon, Phys. Plasmas 11, 1866 (2004)]. The work includes (1) analysis with a reduced resistive MHD model for a tokamak with finite ? and with stepfunction current density and pressure profiles, and (2) computations with a full compressible visco-resistive MHD model with smooth decreasing profiles of current density and pressure. The equilibria are stable for ??=?0 and the marginal stability values ?{sub rp,rw}?gain with normal sensors or plasma rotation stabilizes below ?{sub rp,iw} because rotation suppresses the diffusion of flux from the plasma out through the wall and, more surprisingly, (b) rotation or imaginary gain with normal sensors destabilizes above ?{sub rp,iw} because it prevents the feedback flux from entering the plasma through the resistive wall to form a virtual wall. A method of using complex gain G{sub i} to optimize in the presence of rotation in this regime with ??>??{sub rp,iw} is presented. The effect of imaginary gain with tangential sensors is more complicated but essentially destabilizes above and below ?{sub rp,iw}.

  6. Hating the Bear? : Root Causes of Perceived anti-Russian Slant in Western News Coverage of the 2008 Russia-Georgia War

    E-Print Network [OSTI]

    Spivakovsky-Gonzalez, Pedro

    2011-01-01

    Hating the Bear? Root Causes of Perceived anti-Russian Slantto understand broader issues or causes of the conflict, orof reporters, and of the root causes of the bias. Indeed,

  7. GENETIC MODIFICATION OF GIBBERELLIC ACID SIGNALING TO PROMOTE CARBON SEQUESTRATION IN TREE ROOTS AND STEMS

    SciTech Connect (OSTI)

    Busov, Victor

    2013-03-05

    Semidwarfism has been used extensively in row crops and horticulture to promote yield, reduce lodging, and improve harvest index, and it might have similar benefits for trees for short-rotation forestry or energy plantations, reclamation, phytoremediation, or other applications. We studied the effects of the dominant semidwarfism transgenes GA Insensitive (GAI) and Repressor of GAI-Like, which affect gibberellin (GA) action, and the GA catabolic gene, GA 2-oxidase, in nursery beds and in 2-year-old high-density stands of hybrid poplar (Populus tremula ? Populus alba). Twenty-nine traits were analyzed, including measures of growth, morphology, and physiology. Endogenous GA levels were modified in most transgenic events; GA(20) and GA(8), in particular, had strong inverse associations with tree height. Nearly all measured traits varied significantly among genotypes, and several traits interacted with planting density, including aboveground biomass, root-shoot ratio, root fraction, branch angle, and crown depth. Semidwarfism promoted biomass allocation to roots over shoots and substantially increased rooting efficiency with most genes tested. The increased root proportion and increased leaf chlorophyll levels were associated with changes in leaf carbon isotope discrimination, indicating altered water use efficiency. Semidwarf trees had dramatically reduced growth when in direct competition with wild-type trees, supporting the hypothesis that semidwarfism genes could be effective tools to mitigate the spread of exotic, hybrid, and transgenic plants in wild and feral populations. We modified gibberellin (GA) metabolism and signaling in transgenic poplars using dominant transgenes and studied their effects for 3 years under field conditions. The transgenes that we employed either reduced the bioactive GAs, or attenuated their signaling. The majority of transgenic trees had significant and in many cases dramatic changes in height, crown architecture, foliage morphology, flowering onset, floral structure, and vegetative phenology. Most transgenes elicited various levels of height reduction consistent with the roles of GA in elongation growth. Several other growth traits were proportionally reduced, including branch length, internode distance, and leaf length. In contrast to elongation growth, stem diameter growth was much less affected, suggesting that semi-dwarf trees in dense stands might provide high levels of biomass production and carbon sequestration. The severity of phenotypic effects was strongly correlated with transgene expression among independent transgenic events, but often in a non-linear manner, the form of which varied widely among constructs. The majority of semi-dwarfed, transgenic plants showed delayed bud flush and early bud set, and expression of a native GAI transgene accelerated first time flowering in the field. All of the phenotypic changes observed in multiple years were stable over the 3 years of field study. Our results suggest that transgenic modification of GA action may be useful for producing semi-dwarf trees with modified growth and morphology for horticulture and other uses. We studied the poplar C(19) gibberellin 2-oxidase (GA2ox) gene subfamily. We show that a set of paralogous gene pairs differentially regulate shoot and root development. ? PtGA2ox4 and its paralogous gene PtGA2ox5 are primarily expressed in aerial organs, and overexpression of PtGA2ox5 produced a strong dwarfing phenotype characteristic of GA deficiency. Suppression of PtGA2ox4 and PtGA2ox5 led to increased biomass growth, but had no effect on root development. By contrast, the PtGA2ox2 and PtGA2ox7 paralogous pair was predominantly expressed in roots, and when these two genes were RNAi-suppressed it led to a decrease of root biomass. ? The morphological changes in the transgenic plants were underpinned by tissue-specific increases in bioactive GAs that corresponded to the predominant native expression of the targeted paralogous gene pair. Although RNAi suppression of both paralogous pairs led to changes in wood developmen

  8. Biochemical studies concerning the relationship of various blood and urine constituents to rate of gain in young beef animals 

    E-Print Network [OSTI]

    Ware, James Harold

    1951-01-01

    of gain in beef animals~ it seeesg XogLoal thai the Xoeele af aortain nutrient blocaL ocaayoneccte shouM be ~sureiL in tbe Xabesatory in this search for a gsoeth incLm, eLnoe these bloog eaterials sores as tbe buUcLing stones fcn groeth anc...LNaLLeae NLe14eLLeal eeelyreLe eae ayykh4 Le eD data ebLaLee4 La %a abeea 4eLeeaLIaaLeae La aa aeLeeLA ee ~L? aey et 4h~ btee4 eeaeLL|eeaLe eLLb eaLe et NsLa et ebe ~i StcaKes bass been oocduotcd oonoercdng possible correlations between rate of gain in bsof...

  9. High magnetic shear gain in a liquid sodium stable couette flow experiment A prelude to an alpha - omega dynamo

    SciTech Connect (OSTI)

    Colgate, Stirling [Los Alamos National Laboratory; Li, Jui [Los Alamos National Laboratory; Finn, John [Los Alamos National Laboratory; Pariev, Vladimir [Los Alamos National Laboratory; Beckley, Howard [NM INSTIT. OF MINING AND TECH; Si, Jiahe [NM INSTIT. OF MINING AND TECH.; Martinic, Joe [NM INSTIT. OF MINING AND TECH.; Westpfahl, David [NM INSTIT. OF TECH.; Slutz, James [NM INSTIT. OF MINING AND TECH.; Westrom, Zeb [NM INSTIT. OF TECH.; Klein, Brianna [NM INSTIT. OF MINING AND TECH.

    2010-11-08

    The {Omega}-phase of the liquid sodium {alpha}-{Omega} dynamo experiment at NMIMT in cooperation with LANL has successfully demonstrated the production of a high toroidal field, B{sub {phi}} {approx_equal} 8 x B{sub r} from the radial component of an applied poloidal magnetic field, B{sub r}. This enhanced toroidal field is produced by rotational shear in stable Couette Row within liquid sodium at Rm {approx_equal} 120. The small turbulence in stable Taylor-Couette Row is caused by Ekman Row where ({delta}v/v){sup 2} {approx} 10{sup -3}. This high {Omega}-gain in low turbulence flow contrasts with a smaller {Omega}-gain in higher turbulence, Helmholtz-unstable shear flows. This result supports the ansatz that large scale astrophysical magnetic fields are created within semi-coherent large scale motions in which turbulence plays a diffusive role that enables magnetic flux linkage.

  10. Stimulated emission and optical gain in AlGaN heterostructures grown on bulk AlN substrates

    SciTech Connect (OSTI)

    Guo, Wei, E-mail: wguo2@ncsu.edu; Bryan, Zachary; Kirste, Ronny; Bryan, Isaac; Hussey, Lindsay; Bobea, Milena; Haidet, Brian; Collazo, Ramón; Sitar, Zlatko [Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695-7919 (United States); Xie, Jinqiao; Mita, Seiji [HexaTech, Inc., 991 Aviation Pkwy, Suite 800, Morrisville, North Carolina 27560 (United States); Gerhold, Michael [Engineering Science Directorate, Army Research Office, P.O. BOX 12211, Research Triangle Park, North Carolina 27703 (United States)

    2014-03-14

    Optical gain spectra for ?250?nm stimulated emission were compared in three different AlGaN-based structures grown on single crystalline AlN substrates: a single AlGaN film, a double heterostructure (DH), and a Multiple Quantum Well (MQW) structure; respective threshold pumping power densities of 700, 250, and 150?kW/cm{sup 2} were observed. Above threshold, the emission was transverse-electric polarized and as narrow as 1.8?nm without a cavity. The DH and MQW structures showed gain values of 50–60?cm{sup ?1} when pumped at 1?MW/cm{sup 2}. The results demonstrated the excellent optical quality of the AlGaN-based heterostructures grown on AlN substrates and their potential for realizing electrically pumped sub-280?nm laser diodes.

  11. Renormalization-group analysis of the validity of staggered-fermion QCD with the fourth-root recipe

    E-Print Network [OSTI]

    Yigal Shamir

    2007-03-20

    I develop a renormalization-group blocking framework for lattice QCD with staggered fermions. Under plausible, and testable, assumptions, I then argue that the fourth-root recipe used in numerical simulations is valid in the continuum limit. The taste-symmetry violating terms, which give rise to non-local effects in the fourth-root theory when the lattice spacing is non-zero, vanish in the continuum limit. A key role is played by reweighted theories that are local and renormalizable on the one hand, and that approximate the fourth-root theory better and better as the continuum limit is approached on the other hand.

  12. Renormalization-group analysis of the validity of staggered-fermion QCD with the fourth-root recipe

    SciTech Connect (OSTI)

    Shamir, Yigal [School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, 69978 Tel Aviv (Israel)

    2007-03-01

    I develop a renormalization-group blocking framework for lattice QCD with staggered fermions. Under plausible, and testable assumptions, I then argue that the fourth-root recipe used in numerical simulations is valid in the continuum limit. The taste-symmetry violating terms, which give rise to nonlocal effects in the fourth-root theory when the lattice spacing is nonzero, vanish in the continuum limit. A key role is played by reweighted theories that are local and renormalizable on the one hand, and that approximate the fourth-root theory better and better as the continuum limit is approached on the other hand.

  13. Shot noise in an electron waveguide square root of NOT gate

    E-Print Network [OSTI]

    Linda E. Reichl; Michael G. Snyder

    2006-01-17

    We present a calculation of the shot noise in a ballistic electron waveguide square root of NOT gate. A general expression for the shot noise in the leads connected to these types of gates is shown. We then parameterize an S-matrix which qualitatively describes the action of a square root of NOT gate previously found through numerical methods for GaAs/Al_xGa_{1-x}As based waveguides systems. Using this S-matrix, the shot noise in a single output lead and across two output leads is calculated. We find that the measurement of the shot noise across two output leads allows for the determination of the fidelity of the gate itself.

  14. Rooting patterns of co-occurring woody plants on contrasting soils in a subtropical savanna 

    E-Print Network [OSTI]

    Watts, Stephen Earl

    1993-01-01

    . 24-29'%%d) and in the 0. 8-1. 6 m depth increments (51-56% vs. 41-47%), while below 12 0. 0-0. 4 0. 4-0. 8 (A) 1-3 mm Diam. Roots 0. 8-1. 2 1. 2-1. 6 1. 6-2. 0 Argiffic Soil 6 x 0. 39+ 334. 14 e + r'-0. 69 Non-Aigitlic Soil i4I x = 5. 11+ 117... humboldfiana (R. & S. ) Zucc. ranged from -5. 0 to -7. 8 MPa versus -1. 1 to -2. 3 MPa for Prosopis (Barnes et al. 1992). Such data suggest these understory shrubs may have shallower root systems than Pmsopfs. Shrubs in cluster understorles appear to persist...

  15. Reconciling taxonomy and phylogenetic inference: formalism and algorithms for describing discord and inferring taxonomic roots

    E-Print Network [OSTI]

    Matsen, Frederick A

    2011-01-01

    Although taxonomy is often used informally to evaluate the results of phylogenetic inference and find the root of phylogenetic trees, algorithmic methods to do so are lacking. In this paper we formalize these procedures and develop algorithms to solve the relevant problems. In particular, we introduce a new algorithm that solves a "uncoloring" problem for expressing the difference between the taxonomy and phylogeny at a given rank. This algorithm improves upon the current best algorithm in terms of asymptotic complexity for the parameter regime of interest; we also describe a branch-and-bound algorithm that saves orders of magnitude in computation on real data sets. We also develop a formalism and an algorithm for rooting phylogenetic trees according to a taxonomy. All of these algorithms are implemented in freely-available software.

  16. The application of small amplitude square root of time potential pulses in electrochemical trace analysis 

    E-Print Network [OSTI]

    Cranston, Stacy Eugene

    1975-01-01

    THE APPLICATION OF SMALL AMPLITUDE SQUARE BOOT OF TIME POTENTIAL PULSES IN ELECTROCHEMICAL TRACE ANALYSIS A Thesis by STACY EUGENE CRANSTON Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement... for the degree of MASTER OF SCIENCE December 1975 Ma]or Sub)ect: Chemistry THE APPLICATION OF SMALL AMPLITUDE SQUARE ROOT OF TIME POTENTIAL PULSES IN ELECTROCHEMICAL TRACE ANALYSIS A Thesis STACY EUGENE CRANSTON Approved as to style and content by...

  17. Quantitative determination and characterization of iron coatings on rice root surfaces 

    E-Print Network [OSTI]

    Chen, Cy-Chain

    1979-01-01

    dispersed by ultrasonication of iron coated roots. The efficiency of concentration of HGNS is approximately a factor of four for samples treated with two consecutive separations at 1. 2 Tesla and 0. 9 Tesla, respectively. Because of concentration... four-inch adjustable electromagnet with Model 45-30 power supply, Alpha Scientific Inc. , Oakland, California) as illustrated. This electromagnet is capable of generating a magnetic field from 0 to 1. 3 Tesla at a pole piece gap of 1. 9 cm which...

  18. Selective progressive response of soil microbial community to wild oat roots

    SciTech Connect (OSTI)

    DeAngelis, K.M.; Brodie, E.L.; DeSantis, T.Z.; Andersen, G.L.; Lindow, S.E.; Firestone, M.K.

    2008-10-01

    Roots moving through soil enact physical and chemical changes that differentiate rhizosphere from bulk soil, and the effects of these changes on soil microorganisms have long been a topic of interest. Use of a high-density 16S rRNA microarray (PhyloChip) for bacterial and archaeal community analysis has allowed definition of the populations that respond to the root within the complex grassland soil community; this research accompanies previously reported compositional changes, including increases in chitinase and protease specific activity, cell numbers and quorum sensing signal. PhyloChip results showed a significant change in 7% of the total rhizosphere microbial community (147 of 1917 taxa); the 7% response value was confirmed by16S rRNA T-RFLP analysis. This PhyloChip-defined dynamic subset was comprised of taxa in 17 of the 44 phyla detected in all soil samples. Expected rhizosphere-competent phyla, such as Proteobacteria and Firmicutes, were well represented, as were less-well-documented rhizosphere colonizers including Actinobacteria, Verrucomicrobia and Nitrospira. Richness of Bacteroidetes and Actinobacteria decreased in soil near the root tip compared to bulk soil, but then increased in older root zones. Quantitative PCR revealed {beta}-Proteobacteria and Actinobacteria present at about 10{sup 8} copies of 16S rRNA genes g{sup -1} soil, with Nitrospira having about 10{sup 5} copies g{sup -1} soil. This report demonstrates that changes in a relatively small subset of the soil microbial community are sufficient to produce substantial changes in function in progressively more mature rhizosphere zones.

  19. ROOT LOCUS TECHNIQUE 323 7.6.1 Hydro Power Plant Experiment

    E-Print Network [OSTI]

    Gajic, Zoran

    ROOT LOCUS TECHNIQUE 323 7.6.1 Hydro Power Plant Experiment The design of a static controller for a real hydro power plant is considered in Skatariâ?? c and Gajiâ?? c (1992). The hydro power plant is treated variables of this hydro power plant are represented by x T = [1` 1! 1u f 1/ d 1/ q 1/ f 1/D 1/Q ] where 1

  20. The influence of clipping management on regrowth and root development of Dallisgrass and Kleingrass 

    E-Print Network [OSTI]

    McDaniel, Jerry Carroll

    1961-01-01

    for Measuring Results. IV. EXPERIMENTAL RESULTS Total Forage Yield. Yields of Plant Conponents. V, DISCUSSION VI. SlBWARY AKD CONCLUSIOHSo 15 21 VII. LITERATURE CITED o VIII. APPE?DIX LXST OF TABLES Page 1. Total forage yields in pounds per aors...THE INFLHENCE OF CLIPPING MANAGEMENT ON REGRONTH AND ROOT DEVELOPMENT OF XIALLISGRASS ANS KLEINGRASS By Jerry Carroll McDaniel Sahnitte4 te the Gradaate School of the Agricaltaral and Mechanical College of Texas ia Partial fnlfillnent...

  1. Rooted-tree network for optimal non-local gate implementation

    E-Print Network [OSTI]

    Nilesh Vyas; Debashis Saha; Prasanta K. Panigrahi

    2015-06-28

    A general quantum network for implementing non-local control-unitary gates, between remote parties at minimal entanglement cost, is shown to be a rooted-tree structure. Starting from a five party scenario, we demonstrate the local implementation of simultaneous control-Hermitian and multiparty control-unitary gates in an arbitrary n-party network. Previously established networks are shown to be special cases of this general construct.

  2. On the Fielding of a High Gain, Shock-Ignited Target on the National Ignitiion Facility in the Near Term

    SciTech Connect (OSTI)

    Perkins, L J; Betti, R; Schurtz, G P; Craxton, R S; Dunne, A M; LaFortune, K N; Schmitt, A J; McKenty, P W; Bailey, D S; Lambert, M A; Ribeyre, X; Theobald, W R; Strozzi, D J; Harding, D R; Casner, A; Atzemi, S; Erbert, G V; Andersen, K S; Murakami, M; Comley, A J; Cook, R C; Stephens, R B

    2010-04-12

    Shock ignition, a new concept for igniting thermonuclear fuel, offers the possibility for a near-term ({approx}3-4 years) test of high gain inertial confinement fusion on the National Ignition Facility at less than 1MJ drive energy and without the need for new laser hardware. In shock ignition, compressed fusion fuel is separately ignited by a strong spherically converging shock and, because capsule implosion velocities are significantly lower than those required for conventional hotpot ignition, fusion energy gains of {approx}60 may be achievable on NIF at laser drive energies around {approx}0.5MJ. Because of the simple all-DT target design, its in-flight robustness, the potential need for only 1D SSD beam smoothing, minimal early time LPI preheat, and use of present (indirect drive) laser hardware, this target may be easier to field on NIF than a conventional (polar) direct drive hotspot ignition target. Like fast ignition, shock ignition has the potential for high fusion yields at low drive energy, but requires only a single laser with less demanding timing and spatial focusing requirements. Of course, conventional symmetry and stability constraints still apply. In this paper we present initial target performance simulations, delineate the critical issues and describe the immediate-term R&D program that must be performed in order to test the potential of a high gain shock ignition target on NIF in the near term.

  3. Spectroscopic evidence of uranium immobilization in acidic wetlands by natural organic matter and plant roots

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

    Li, Dien; Kaplan, Daniel I.; Chang, Hyun-Shik; Seaman, John C.; Jaffé, Peter R.; Koster van Groos, Paul; Scheckel, Kirk G.; Segre, Carlo U.; Chen, Ning; Jiang, De-Tong; et al

    2015-03-03

    Biogeochemistry of uranium in wetlands plays important roles in U immobilization in storage ponds of U mining and processing facilities but has not been well understood. The objective of this work was to study molecular mechanisms responsible for high U retention by Savannah River Site (SRS) wetland sediments under varying redox and acidic (pH = 2.6–5.8) conditions using U L?-edge X-ray absorption spectroscopy. Uranium in the SRS wetland sediments existed primarily as U(VI) bonded as a bidentate to carboxylic sites (U–C bond distance at ~2.88 Å), rather than phenolic or other sites of natural organic matter (NOM). In microcosms simulatingmore »the SRS wetland processes, U immobilization on roots was two orders of magnitude higher than on the adjacent brown or more distant white sands in which U was U(VI). Uranium on the roots were both U(IV) and U(VI), which were bonded as a bidentate to carbon, but the U(VI) may also form a U phosphate mineral. After 140 days of air exposure, all U(IV) was re-oxidized to U(VI) but remained as a bidentate bonding to carbon. This study demonstrated NOM and plant roots can highly immobilize U(VI) in the SRS acidic sediments, which has significant implication for the long-term stewardship of U-contaminated wetlands.« less

  4. Analysis of Leaf and Root Transcriptome of Soil Grown Avena barbata Plants

    SciTech Connect (OSTI)

    Swarbreck, Sté; phanie; Lindquist, Erika; Ackerly, David; Andersen, Gary

    2011-02-01

    Slender wild oat (Avena barbata) is an annual grass dominant in many grassland ecosystems in Mediterranean climate. This species has been the subject of ecological studies that aim at understanding the effect of global climate change on grassland ecosystems and the genetic basis for adaptation under varying environmental conditions. We present the sequencing and analysis of cDNA libraries constructed from leaf and root samples collected from A. barbata grown on natural soil and under varying rainfall patterns. More than one million expressed sequence tags (ESTs) were generated using both GS 454-FLX pyrosequencing and Sanger sequencing, and these tags were assembled into consensus sequences. We identified numerous candidate polymorphic markers in the dataset, providing possibilities for linking the genomic and the existing genetic information for A. barbata. Using the digital northern method, we showed that genes involved in photosynthesis were down regulated under high rainfall while stress- related genes were up regulated. We also identified a number of genes unique to the root library with unknown function. Real-time RT-PCR was used to confirm the root specificity of some of these transcripts such as two genes encoding O-methyl transferase. Also we showed differential expression under three water levels. Through a combination of Sanger and 454-based sequencing technologies, we were able to generate a large set of transcribed sequences for A. barbata. This dataset provides a platform for further studies of this important wild grass species

  5. EFFECTS OF ELEVATED CO2 ON ROOT FUNCTION AND SOIL RESPIRATION IN A MOJAVE DESERT ECOSYSTEM

    SciTech Connect (OSTI)

    Nowak, Robert S.

    2007-12-19

    Increases in atmospheric CO{sub 2} concentration during the last 250 years are unequivocal, and CO{sub 2} will continue to increase at least for the next several decades (Houghton et al. 2001, Keeling & Whorf 2002). Arid ecosystems are some of the most important biomes globally on a land surface area basis, are increasing in area at an alarming pace (Dregne 1991), and have a strong coupling with regional climate (Asner & Heidebrecht 2005). These water-limited ecosystems also are predicted to be the most sensitive to elevated CO{sub 2}, in part because they are stressful environments where plant responses to elevated CO{sub 2} may be amplified (Strain & Bazzaz 1983). Indeed, all C{sub 3} species examined at the Nevada Desert FACE Facility (NDFF) have shown increased A{sub net} under elevated CO{sub 2} (Ellsworth et al. 2004, Naumburg et al. 2003, Nowak et al. 2004). Furthermore, increased shoot growth for individual species under elevated CO{sub 2} was spectacular in a very wet year (Smith et al. 2000), although the response in low to average precipitation years has been smaller (Housman et al. 2006). Increases in perennial cover and biomass at the NDFF are consistent with long term trends in the Mojave Desert and elsewhere in the Southwest, indicating C sequestration in woody biomass (Potter et al. 2006). Elevated CO{sub 2} also increases belowground net primary production (BNPP), with average increases of 70%, 21%, and 11% for forests, bogs, and grasslands, respectively (Nowak et al. 2004). Although detailed studies of elevated CO{sub 2} responses for desert root systems were virtually non-existent prior to our research, we anticipated that C sequestration may occur by desert root systems for several reasons. First, desert ecosystems exhibit increases in net photosynthesis and primary production at elevated CO{sub 2}. If large quantities of root litter enter the ecosystem at a time when most decomposers are inactive, significant quantities of carbon may be stored belowground in relatively recalcitrant forms. Indeed, a model-based analysis predicted that the arid/semiarid southwestern bioclimatic region had one of the highest rates of net carbon storage in the United States over the past century (Schimel et al. 2000). Second, root systems of desert plants are often extensive (Foxx et al. 1984, Hartle et al. 2006) with relatively large proportions of roots deep in the soil (Schenk & Jackson 2002). Thus, an understanding of belowground processes in desert ecosystems provides information on the potential for terrestrial carbon sequestration in desert ecosystems.

  6. Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion

    E-Print Network [OSTI]

    Yang, Qing

    In order to study the flashover mechanism of polluted insulators under AC voltage, a new arc propagation criterion which is based on an arc root voltage gradient is proposed. This criterion can explain the variation of the ...

  7. Dijet Azimuthal Decorrelations in pp Collisions at ?s=7? [square root of s=7]?TeV

    E-Print Network [OSTI]

    Alver, Burak Han

    Measurements of dijet azimuthal decorrelations in pp collisions at ?s=7??[square root of s=7] TeV using the CMS detector at the CERN LHC are presented. The analysis is based on an inclusive dijet event sample corresponding ...

  8. Pion femtoscopy in p?+?p collisions at ?s=200 [square root of s = 200] GeV

    E-Print Network [OSTI]

    Balewski, Jan T.

    The STAR Collaboration at the BNL Relativistic Heavy Ion Collider has measured two-pion correlation functions from p+p collisions at ?s=200 [square root of s = 200] GeV. Spatial scales are extracted via a femtoscopic ...

  9. Effect of low po? on growth of bacteria and on loss of soluble carbon from maize roots under hydroponic conditions 

    E-Print Network [OSTI]

    Coker, Dennis Lee

    1992-01-01

    Hydroponic Conditions. (May 1992) Dennis Lee Coker, B. S. , Tarleton State University Chairman of Advisory Committee: Dr. David A. Zuberer In the maize rhizosphere, environmental stress may influence a number of processes mediated by rhizosphere bacteria... of 10 . Upon completion of serial dilutions, 0. 1-mL aliquots of diluted root extract (inoculum) from the three highest dilutions (10 , 10 -8 and 10 ) were transferred to duplicate plates to determine colony forming units (CFU) per gram of root...

  10. Fidelity criterion for quantum-domain transmission and storage of coherent states beyond unit-gain constraint

    E-Print Network [OSTI]

    Ryo Namiki; Masato Koashi; Nobuyuki Imoto

    2008-08-11

    We generalize the experimental success criterion for quantum teleportation/memory in continuous-variable quantum systems to be suitable for non-unit-gain condition by considering attenuation/amplification of the coherent-state amplitude. The new criterion can be used for a non-ideal quantum memory and long distance quantum communication as well as quantum devices with amplification process. It is also shown that the framework to measure the average fidelity is capable of detecting all Gaussian channels in quantum domain.

  11. Modeling of optical amplifier waveguide based on silicon nanostructures and rare earth ions doped silica matrix gain media by a finite-difference time-domain method: comparison of achievable gain with Er3+ or Nd3+ ions dopants

    E-Print Network [OSTI]

    Cardin, Julien; Dufour, Christian; Gourbilleau, Fabrice

    2015-01-01

    A comparative study of the gain achievement is performed in a waveguide optical amplifier whose active layer is constituted by a silica matrix containing silicon nanograins acting as sensitizer of either neodymium ions (Nd 3+) or erbium ions (Er 3+). Due to the large difference between population levels characteristic times (ms) and finite-difference time step (10 --17 s), the conventional auxiliary differential equation and finite-difference time-domain (ADE-FDTD) method is not appropriate to treat such systems. Consequently, a new two loops algorithm based on ADE-FDTD method is presented in order to model this waveguide optical amplifier. We investigate the steady states regime of both rare earth ions and silicon nanograins levels populations as well as the electromagnetic field for different pumping powers ranging from 1 to 10 4 mW.mm-2. Furthermore, the three dimensional distribution of achievable gain per unit length has been estimated in this pumping range. The Nd 3+ doped waveguide shows a higher gross...

  12. Root Diseases and Exotic Ecosystems: Implications for Long-Term Site Productivity

    SciTech Connect (OSTI)

    Otrosina, W. J.; Garbelotto, M.

    1997-09-01

    Management activities and various land uses have taken place recently that have dramatically altered edaphic and environmental conditions under which forest tree species and ecosystems have evolved. Sequoia giganteum stands, fire suppression in this fire dependent ecosystem has resulted in increased mortality due to Heterobasidion annosum. On hypothesis is that fire suppression results in increased encroachment of true firs, easily infected by S-group Heterobasidion annosum, thereby transferring the disease via root contacts with S. giganteum. Existence of a hybrid with S and P ISG's of H. annosum may be evidence for anthropogenic influences on evolutionary pathways in this pathogen.

  13. The effects of preemergence herbicides on the root morphology of two warm-season turfgrasses 

    E-Print Network [OSTI]

    Tillman, Paul H.

    1992-01-01

    . 44 0. 56 1. 12 2. 24 3. 36 1. 12 3. 36 1. 68 125 aklk 122 ab 122 ab 122 ab 122 ab 121 ab 118 abc 117 abc 116 abc 114 abc 112 bc 109 c 12 7. 16 130 a 121 ab 109 b 113 ab 121 ab 116 ab 116 ab 110 b 110 b 114 ab 120 ab... of Comrntttee) Marshall I. McFarland (Member) Morris G. Merkle (Member) . C. A. u (Ikad of Department) Nay. 1992 sax ABSTRACT The Effects of Six Preemergence Herbicides on the Root Morphology of Two Warm-Season Turfgrasses. May 1992 Paul H. Tillman B...

  14. Root-Uptake of C-14 Acetic Acid by Various Plants and C-14 Dynamics Surrounding the Experimental Tessera

    SciTech Connect (OSTI)

    Ogiyama, S.; Takeda, H.; Uchida, S.; Suzuki, H.; Inubushi, K.

    2008-07-01

    Carbon-14 (C-14, t{sub 1/2} = 5.73x10{sup 3} yrs) from radioactive waste is one of the most important radioactive nuclides for environmental assessment in the context of geological disposal, and understanding the transfer of radioactive elements to plants is essential for public health safety. In order to obtain fundamental knowledge, culture experiments using marigold (Tagetes patula L.), tall fescue (Festuca arundinacea S.), paddy rice (Oryza sativa L.), radish (Raphanus sativus L.), and carrot (Daucus carota L.) plants were conducted to examine root-uptake and dynamics of C-14 in the laboratory. The C-14 radioactivity in each plant part (e.g. shoot, root, edible part, etc.), medium (e.g. culture solution, sand, etc.), and air was determined. The distribution of C-14 in the plants was visualized using autoradiography. For a comparison, autoradiography was also done using Na-22. Results of the present study indicated that C-14 labeled CO{sub 2} gas was released from the culture solution to the atmosphere. Clear autoradiography images were observed in plants for the shoots and lower roots which were soaked in the culture solution. The upper roots which were not soaked in the culture solution were not clearly imaged. In the radiotracer experiment using Na-22, a clear image was observed for the whole carrot seedling, even including the upper root, on the autoradiography. However, the amounts of C-14 acetic acid absorbed by all the plants through their roots were considered to be very small. Inorganic carbon transformed from C-14 acetic acid would be taken up by plants through the roots, and some fraction of C-14 would be assimilated into the shoots by photosynthesis. (authors)

  15. High gain, low noise, fully complementary logic inverter based on bi-layer WSe{sub 2} field effect transistors

    SciTech Connect (OSTI)

    Das, Saptarshi; Roelofs, Andreas; Dubey, Madan

    2014-08-25

    In this article, first, we show that by contact work function engineering, electrostatic doping and proper scaling of both the oxide thickness and the flake thickness, high performance p- and n-type WSe{sub 2} field effect transistors (FETs) can be realized. We report record high drive current of 98??A/?m for the electron conduction and 110 ?A/?m for the hole conduction in Schottky barrier WSe{sub 2} FETs. Then, we combine high performance WSe{sub 2} PFET with WSe{sub 2} NFET in double gated transistor geometry to demonstrate a fully complementary logic inverter. We also show that by adjusting the threshold voltages for the NFET and the PFET, the gain and the noise margin of the inverter can be significantly enhanced. The maximum gain of our chemical doping free WSe{sub 2} inverter was found to be ?25 and the noise margin was close to its ideal value of ?2.5?V for a supply voltage of V{sub DD}?=?5.0?V.

  16. “The Sun Do Move” Lloyd Gaines and Lucile Bluford—Interconnected Histories of the NAACP’s Campaign for Educational Equality

    E-Print Network [OSTI]

    Baker, James Spence

    2015-05-31

    This thesis develops the two, interconnected narratives of two African Americans, Lloyd Lionel Gaines and Lucile Harris Bluford. Specifically, the work explores the two plaintiffs’ attempts for admission to the University ...

  17. Study of Mechanical Properties and Characterization of Pipe Steel welded by Hybrid (Friction Stir Weld + Root Arc Weld) Approach

    SciTech Connect (OSTI)

    Lim, Yong Chae [ORNL; Sanderson, Samuel [MegaStir Technologies LLC; Mahoney, Murray [Consultant; Wasson, Andrew J [ExxonMobil, Upstream Research Company (URC); Fairchild, Doug P [ExxonMobil, Upstream Research Company (URC); Wang, Yanli [ORNL; Feng, Zhili [ORNL

    2015-01-01

    Friction stir welding (FSW) has recently attracted attention as an alternative construction process for gas/oil transportation applications due to advantages compared to fusion welding techniques. A significant advantage is the ability of FSW to weld the entire or nearly the entire wall thickness in a single pass, while fusion welding requires multiple passes. However, when FSW is applied to a pipe or tube geometry, an internal back support anvil is required to resist the plunging forces exerted during FSW. Unfortunately, it may not be convenient or economical to use internal backing support due to limited access for some applications. To overcome this issue, ExxonMobil recently developed a new concept, combining root arc welding and FSW. That is, a root arc weld is made prior to FSW that supports the normal loads associated with FSW. In the present work, mechanical properties of a FSW + root arc welded pipe steel are reported including microstructure and microhardness.

  18. Root biomass and nutrient content of a 25-year-old loblolly pine (Pinus Taeda L.) plantation in East Texas 

    E-Print Network [OSTI]

    Tuttle, Charles LaGrone

    1978-01-01

    ROOT BIOMASS AND NUTRIENT CONTENT OF A 25-YEAR-OLD LOBLOLLY PINE (PINUP TAED!l LJ PIJIN ATION IN EAST TEIJIS A Thesis by Charles LaGrone Tuttle Submitted to the Graduate College of Texa s A & M University in partial, fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1978 iVIajor Subject: Forest S "ience ROOT BIOMASS AND NUTRIENT CONTENT OF A 25-YEAR-OLD LOBLOLLY PINE (PINUS TAEDA L. ) PLANTATION IN EAST TEXAS A Thesis by Charles LaGrone Tuttle Approved...

  19. Influence of a transverse magnetic field on arc root movements in a dc plasma torch: Diamagnetic effect of arc column

    SciTech Connect (OSTI)

    Kim, Keun Su

    2009-03-23

    The effect of a transverse magnetic field on the anodic arc root movement inside a dc plasma torch has been investigated. The arc voltage fluctuation, which represents the degree of the arc instability, was reduced to 28.6% of the original value and the high frequency components in the voltage signal also decreased in their magnitudes. The inherent arc instability in a dc thermal plasma torch seems to be suppressed by a diamagnetic effect of the arc column. Furthermore, the measured voltage wave forms indicated that the arc root attachment mode would be controllable by a transverse magnetic field.

  20. Gaining a World View 

    E-Print Network [OSTI]

    Wythe, Kathy

    2007-01-01

    -edge technology.? Hartley, whose home is near Galveston on Texas? coast, said he was particularly interested in this project because of the damage of Hurricane Katrina in 2005. ?Observing this project has reassured me that once people put their minds...

  1. Export markets gain strength

    SciTech Connect (OSTI)

    Fiscor, S.

    2008-02-15

    The prices for internally traded coal in the USA have reached record levels and the future market fundamentals look very good. This is mainly due to Asian demand. The article discusses recent markets for US coal and summarizes findings of a recent study by Hill & Associates entitled 'International coal trade - supply, demand and prices to 2025'. 1 ref., 2 tabs.

  2. Gaining Experience Experiential Learning

    E-Print Network [OSTI]

    Wu, Shin-Tson

    us.org/ UCF Arboretum http://www.arboretum.ucf.edu/ UCF Sustainability http://energy://www.ecojobs.com/environmental- internships.htm Florida Dept. of Environmental Protection http://www.dep.state.fl.us/careers/ careers://www.orangecountyfl.net/ Environment.aspx UCF Sustainability http://www.sustainable.ucf.edu/ UCF Environmental Health and Safety http

  3. Gain Sharing.PDF

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:FinancingPetroleum12,Executive Compensation References: FARWashers | GSATransmissionSE DOE/IG-480 I

  4. Analysis of Factors Controlling Cell Cycle that Can Be Synchronized Nondestructively During Root Cap Development

    SciTech Connect (OSTI)

    Martha Hawes

    2011-02-04

    Publications and presentations during the final funding period, including progress in defining the substrate specificity, the primary goal of the project, are listed below. Both short-term and long-term responses mediated by PsUGT1 have been characterized in transgenic or mutant pea, alfalfa, and Arabidopsis with altered expression of PsUGT1. Additional progress includes evaluation of the relationship between control of the cell cycle by PsUGT1 and other glycosyltransferase and glycosidase enzymes that are co-regulated in the legume root cap during the onset of mitosis and differentiation. Transcriptional profiling and multidimensional protein identification technology ('MudPIT') have been used to establish the broader molecular context for the mechanism by which PsUGT1 controls cell cycle in response to environmental signals. A collaborative study with the Norwegian Forest Research Institute (who provided $10,000.00 in supplies and travel funds for collaborator Dr. Toril Eldhuset to travel to Arizona and Dr. H. H. Woo to travel to Norway) made it possible to establish that the inducible root cap system for studying carbohydrate synthesis and solubilization is expressed in gymnosperm as well as angiosperm species. This discovery provides an important tool to amplify the potential applications of the research in defining conserved cell cycle machinery across a very broad range of plant species and habitats. The final work, published during 2009, revealed an additional surprising parallel with mammalian immune responses: The cells whose production is controlled by PsUGT1 appear to function in a manner which is analogous to that of white blood cells, by trapping and killing in an extracellular manner. This may explain why mutation within the coding region of PsUGT1 and its homolog in humans (UGT1) is lethal to plants and animals. The work has been the subject of invited reviews. A postdoctoral fellow, eight undergraduate students, four M.S. students and three Ph.D. students have been supported.

  5. Innovative Approach to Establish Root Causes for Cracking in Aggressive Reactor Environments

    SciTech Connect (OSTI)

    Bruemmer, Stephen M.; Thomas, Larry E.; Vetrano, John S.; Simonen, Edward P.

    2003-10-31

    The research focuses on the high-resolution characterization of degradation microstructures and microchemistries in specimens tested under controlled conditions for the environment and for the material where in-service complexities can be minimized. Thermodynamic and kinetic modeling of crack-tip processes is employed to analyze corrosion-induced structures and gain insights into degradation mechanisms. Novel mechanistic ''fingerprinting'' of crack-tip structures is used to isolate causes of environmental cracking in tandem with quantitative measurements of crack growth. Sample preparation methods and advanced analytical techniques are used to characterize corrosion/oxidation reactions and crack-tip structures at near atomic dimensions in order to gain insight into fundamental environmental cracking mechanisms. Reactions at buried interfaces, not accessible by conventional approaches, are being systematically interrogated. Crack-growth experiments in high-temperature water environments are evaluating and isolating the effects of material condition (matrix strength, grain boundary composition and precipitation) on stress corrosion cracking (SCC). The fundamental understanding of crack advance mechanisms will establish the basis to design new corrosion-resistant alloys for current light-water reactors and advanced reactor systems.

  6. Genome Sequence of "Candidatus Frankia datiscae" Dg1, the Uncultured Microsymbiont from Nitrogen-Fixing Root Nodules of the Dicot Datisca glomerata

    SciTech Connect (OSTI)

    Persson, Thomas [Stockholm University, Stockholm, Sweden; Benson, David R [University of Connecticut, Storrs; Normand, Philippe [Universite Lyon 1, Villeurbanne, France; Vanden Heuvel, Brian [Colorado State University, Pueblo CO; Pujic, Petar [Universite Lyon 1, Villeurbanne, France; Chertkov, Olga [Los Alamos National Laboratory (LANL); Teshima, Hazuki [Los Alamos National Laboratory (LANL); Bruce, David [Los Alamos National Laboratory (LANL); Detter, J. Chris [U.S. Department of Energy, Joint Genome Institute; Tapia, Roxanne [Los Alamos National Laboratory (LANL); Han, Cliff [Los Alamos National Laboratory (LANL); Han, James [U.S. Department of Energy, Joint Genome Institute; Woyke, Tanja [U.S. Department of Energy, Joint Genome Institute; Pitluck, Sam [U.S. Department of Energy, Joint Genome Institute; Pennacchio, Len [U.S. Department of Energy, Joint Genome Institute; Nolan, Matt [U.S. Department of Energy, Joint Genome Institute; Ivanova, N [U.S. Department of Energy, Joint Genome Institute; Pati, Amrita [U.S. Department of Energy, Joint Genome Institute; Land, Miriam L [ORNL; Pawlowski, Katharina [Stockholm University, Stockholm, Sweden; Berry, Alison M [California Institute of Technology, University of California, Davis

    2011-01-01

    Members of the noncultured clade of Frankia enter into root nodule symbioses with actinorhizal species from the orders Cucurbitales and Rosales. We report the genome sequence of a member of this clade originally from Pakistan but obtained from root nodules of the American plant Datisca glomerata without isolation in culture.

  7. Isolated photon cross section in p(p)over-bar collisions at root s=1.8 TeV

    E-Print Network [OSTI]

    Baringer, Philip S.; Coppage, Don; Hebert, C.

    2000-03-01

    We report a new measurement of the cross section for the production of isolated photons with transverse energies (E-T(gamma)) above 10 GeV and pseudorapidities \\eta\\ < 2.5 in p (p) over bar collisions at root s = 1.8 TeV. ...

  8. Bound state solutions of square root power law potential--Wavefunction ansatz method on $D$-dimensional Schrödinger equation

    E-Print Network [OSTI]

    Tapas Das

    2015-03-25

    $D$-dimensional Schr\\"{o}dinger equation is addressed for square root power law potential. Bound state unnormalized eigenfunctions and the energy eigenvalues are obtained using wave function ansatz method. Some special cases are studied at the end to ensure the correctness of present work.

  9. Root responses along a subambient to elevated CO2 gradient in a C3C4 grassland

    E-Print Network [OSTI]

    Jackson, Robert B.

    Root responses along a subambient to elevated CO2 gradient in a C3­C4 grassland L A U R E L J . A N C3­C4 grassland exposed to a gradient of Ca from preglacial to future levels (230­550 lmol molÀ1 studies have docu- mented increases in belowground plant productivity and metabolism with increased

  10. Getting to the Root of Things: Spatiotemporal Regulatory Networks (JGI Seventh Annual User Meeting 2012: Genomics of Energy and Environment)

    ScienceCinema (OSTI)

    Brady, Siobhan [UC Davis

    2013-01-22

    Siobhan Brady from University of California, Davis, gives a talk titled "tGetting to the Root of things: Spatiotemporal Regulatory Networks" at the JGI 7th Annual Users Meeting: Genomics of Energy & Environment Meeting on March 22, 2012 in Walnut Creek, California.

  11. A whole-forest 14C pulse-label study of microbial dynamics and root turnover (EBIS*)

    E-Print Network [OSTI]

    Post, Wilfred M.

    A whole-forest 14C pulse-label study of microbial dynamics and root turnover (EBIS*) Margaret S to be microbial. The extracts were freeze-dried prior to combustion for graphitization. Soils collected in 2002 a large pulse of 14CO2 near Oak Ridge (OR), Tennessee. The photosynthetic uptake of the 14CO2 created

  12. IEEE SIGNAL PROCESSING LETTERS, VOL. 13, NO. 5, MAY 2006 265 A Square-Root Adaptive V-BLAST Algorithm

    E-Print Network [OSTI]

    Rontogiannis, Athanasios A.

    IEEE SIGNAL PROCESSING LETTERS, VOL. 13, NO. 5, MAY 2006 265 A Square-Root Adaptive V-BLAST Algorithm for Fast Time-Varying MIMO Channels Athanasios A. Rontogiannis, Member, IEEE, Vassilis Kekatos, Student Member, IEEE, and Kostas Berberidis, Member, IEEE Abstract--Among the methods that have been

  13. Calculation of the Electric and Magnetic Root Mean Squared Radiuses of Proton Based on MIT Bag Model

    E-Print Network [OSTI]

    Maryam Momeni Feili; Mahvash Zandi

    2015-01-12

    The electric and magnetic bag radiuses of the proton can be determined by MIT bag model based on electric and magnetic form factors of the proton. Also we determined electric and magnetic root mean squared radiuses of the proton, using of bag radius and compared with other results suggests a suitable compatibility.

  14. Getting to the Root of Things: Spatiotemporal Regulatory Networks (JGI Seventh Annual User Meeting 2012: Genomics of Energy and Environment)

    SciTech Connect (OSTI)

    Brady, Siobhan [UC Davis] [UC Davis

    2012-03-22

    Siobhan Brady from University of California, Davis, gives a talk titled "tGetting to the Root of things: Spatiotemporal Regulatory Networks" at the JGI 7th Annual Users Meeting: Genomics of Energy & Environment Meeting on March 22, 2012 in Walnut Creek, California.

  15. TEOS 02 La Selva soil and root dynamics: What happens in soil, stays in soil Team Members

    E-Print Network [OSTI]

    Soatto, Stefano

    TEOS 02 La Selva soil and root dynamics: What happens in soil, stays in soil Team Members · Michael. This includes clay soils, high precipitation, and relatively constant warm temperatures. Another importance flux network, and a large database on ecological dynamics. Approach Soil AMR units and sensor networks

  16. Draft Genome Sequence of Paenibacillus polymyxa Strain Mc5Re-14, an Antagonistic Root Endophyte of Matricaria chamomilla

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

    Köberl, Martina; White, Richard A.; Erschen, Sabine; El-Arabi, Tarek F.; Jansson, Janet K.; Berg, Gabriele

    2015-08-06

    Paenibacillus polymyxa strain Mc5Re-14 was isolated from the inner root tissue of Matricaria chamomilla (German chamomile). Mc5Re-14 revealed promising in vitro antagonistic activity against plant and opportunistic human pathogens. The 6.0-Mb draft genome reveals genes putatively involved in pathogen suppression and direct and indirect plant growth promotion.

  17. Mycorrhizal type determines the magnitude and direction of root-induced changes in decomposition in a temperate forest

    E-Print Network [OSTI]

    Phillips, Richard P.

    can accelerate soil C losses by provisioning microbes with energy to decompose organic matter composi- tion, and that shifts in the distribution of AM and ECM trees owing to climate change may- tion of root­microbe interactions in ecosystem and land surface models (Iversen, 2010; Cheng et al

  18. Effect of Mulch Surface Color on Root-knot of Tomato Grown in Simulated Planting Beds1

    E-Print Network [OSTI]

    Decoteau, Dennis R.

    -parasite relationship, light quality, Meloidogyne incognita, nematode, photomorphogen- esis, plastic mulch, polyethylene, root-knot, tomato. Plastic mulches are commonly used in the production of vegetables. Benefits from the use of plastic mulch include enhanced water and fertilizer management, and weed con- trol. Soil

  19. 1132 WWW.CROPS.ORG CROP SCIENCE, VOL. 52, MAYJUNE 2012 While varying regionally, root-feeding plant-parasitic

    E-Print Network [OSTI]

    Douches, David S.

    1132 WWW.CROPS.ORG CROP SCIENCE, VOL. 52, MAY­JUNE 2012 RESEARCH While varying regionally, root, Statistician, Department of Crop and Soil Sciences, Plant and Soil Science Building, Michigan State University.08.0409 © Crop Science Society of America | 5585 Guilford Rd., Madison, WI 53711 USA All rights reserved. No part

  20. Inclusive Electroweak measurements in the muon channel with pp collisions at [the square root of] s=7 TeV

    E-Print Network [OSTI]

    Harris, Philip Coleman

    2011-01-01

    In this thesis, we perform the measurement of the production of W and Z bosons in proton-proton collisions at [the square root of]s = 7 TeV with the Large Hadron Collider (LHC). In the LHC, W and Z bosons are produced at ...

  1. A multifactor analysis of fungal and bacterial community structure of the root microbiome of mature Populus deltoides trees

    SciTech Connect (OSTI)

    Shakya, Migun; Gottel, Neil R; Castro Gonzalez, Hector F; Yang, Zamin; Gunter, Lee E; Labbe, Jessy L; Muchero, Wellington; Bonito, Gregory; Vilgalys, Rytas; Tuskan, Gerald A; Podar, Mircea; Schadt, Christopher Warren

    2013-01-01

    Bacterial and fungal communities associated with plant roots are central to the host- health, survival and growth. However, a robust understanding of root-microbiome and the factors that drive host associated microbial community structure have remained elusive, especially in mature perennial plants from natural settings. Here, we investigated relationships of bacterial and fungal communities in the rhizosphere and root endosphere of the riparian tree species Populus deltoides, and the influence of soil parameters, environmental properties (host phenotype and aboveground environmental settings), host plant genotype (Simple Sequence Repeat (SSR) markers), season (Spring vs. Fall) and geographic setting (at scales from regional watersheds to local riparian zones) on microbial community structure. Each of the trees sampled displayed unique aspects to it s associated community structure with high numbers of Operational Taxonomic Units (OTUs) specific to an individual trees (bacteria >90%, fungi >60%). Over the diverse conditions surveyed only a small number of OTUs were common to all samples within rhizosphere (35 bacterial and 4 fungal) and endosphere (1 bacterial and 1 fungal) microbiomes. As expected, Proteobacteria and Ascomycota were dominant in root communities (>50%) while other higher-level phylogenetic groups (Chytridiomycota, Acidobacteria) displayed greatly reduced abundance in endosphere compared to the rhizosphere. Variance partitioning partially explained differences in microbiome composition between all sampled roots on the basis of seasonal and soil properties (4% to 23%). While most variation remains unattributed, we observed significant differences in the microbiota between watersheds (Tennessee vs. North Carolina) and seasons (Spring vs. Fall). SSR markers clearly delineated two host populations associated with the samples taken in TN vs. NC, but overall genotypic distances did not have a significant effect on corresponding communities that could be separated from other measured effects.

  2. Health and productivity gains from better indoor environments and their implications for the U.S. Department of Energy

    SciTech Connect (OSTI)

    Fisk, William J.

    2000-10-01

    A substantial portion of the US population suffers frequently from communicable respiratory illnesses, allergy and asthma symptoms, and sick building syndrome symptoms. We now have increasingly strong evidence that changes in building design, operation, and maintenance can significantly reduce these illnesses. Decreasing the prevalence or severity of these health effects would lead to lower health care costs, reduced sick leave, and shorter periods of illness-impaired work performance, resulting in annual economic benefits for the US in the tens of billions of dollars. Increasing the awareness of these potential health and economic gains, combined with other factors, could help bring about a shift in the way we design, construct, operate, and occupy buildings. The current goal of providing marginally adequate indoor environments could be replaced by the goal of providing indoor environments that maximize the health, satisfaction, and performance of building occupants. Through research and technology transfer, DOE and its contractors are well positioned to help stimulate this shift in practice and, consequently, improve the health and economic well-being of the US population. Additionally, DOE's energy-efficiency interests would be best served by a program that prepares for the potential shift, specifically by identifying and promoting the most energy-efficient methods of improving the indoor environment. The associated research and technology transfer topics of particular relevance to DOE are identified and discussed.

  3. The use of stored carbon reserves in growth of temperate tree roots and leaf buds: Analyses using radiocarbon measurements and modeling

    SciTech Connect (OSTI)

    Gaudinski, J.B.; Torn, M.S.; Riley, W.J.; Swanston, C.; Trumbore, S.E.; Joslin, J.D.; Majdi, H.; Dawson, T.E.; Hanson, P.J.

    2009-02-01

    Characterizing the use of carbon (C) reserves in trees is important for understanding regional and global C cycles, stress responses, asynchrony between photosynthetic activity and growth demand, and isotopic exchanges in studies of tree physiology and ecosystem C cycling. Using an inadvertent, whole-ecosystem radiocarbon ({sup 14}C) release in a temperate deciduous oak forest and numerical modeling, we estimated that the mean age of stored C used to grow both leaf buds and new roots is 0.7 years and about 55% of new-root growth annually comes from stored C. Therefore, the calculated mean age of C used to grow new-root tissue is {approx}0.4 years. In short, new roots contain a lot of stored C but it is young in age. Additionally, the type of structure used to model stored C input is important. Model structures that did not include storage, or that assumed stored and new C mixed well (within root or shoot tissues) before being used for root growth, did not fit the data nearly as well as when a distinct storage pool was used. Consistent with these whole-ecosystem labeling results, the mean age of C in new-root tissues determined using 'bomb-{sup 14}C' in three additional forest sites in North America and Europe (one deciduous, two coniferous) was less than 1-2 years. The effect of stored reserves on estimated ages of fine roots is unlikely to be large in most natural abundance isotope studies. However, models of root C dynamics should take stored reserves into account, particularly for pulse-labeling studies and fast-cycling roots (<1 years).

  4. Experimental study of a modulated beam AlGaAs/GaAs diode amplifier operating in the highly saturated gain regime

    SciTech Connect (OSTI)

    D'yachkov, N V; Bogatov, A P; Gushchik, T I; Drakin, A E [P N Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

    2014-11-30

    The variation in the modulation parameters of an optical signal in a diode power amplifier has been studied experimentally. The experimental data obtained agree well with theory that takes into account nonlinear interaction between fields in the gain medium of a laser through inversion beating. It is shown that the dominant type of output signal modulation is phase modulation, whose depth depends on the amplitude – phase coupling coefficient of the gain medium of the amplifier and the nature of the modulation (the phase relationships between the spectral components) of the output signal. (lasers)

  5. Simulated Stochastic Approximation Annealing for Global Optimization with a Square-Root Cooling Schedule

    SciTech Connect (OSTI)

    Liang, Faming; Cheng, Yichen; Lin, Guang

    2014-06-13

    Simulated annealing has been widely used in the solution of optimization problems. As known by many researchers, the global optima cannot be guaranteed to be located by simulated annealing unless a logarithmic cooling schedule is used. However, the logarithmic cooling schedule is so slow that no one can afford to have such a long CPU time. This paper proposes a new stochastic optimization algorithm, the so-called simulated stochastic approximation annealing algorithm, which is a combination of simulated annealing and the stochastic approximation Monte Carlo algorithm. Under the framework of stochastic approximation Markov chain Monte Carlo, it is shown that the new algorithm can work with a cooling schedule in which the temperature can decrease much faster than in the logarithmic cooling schedule, e.g., a square-root cooling schedule, while guaranteeing the global optima to be reached when the temperature tends to zero. The new algorithm has been tested on a few benchmark optimization problems, including feed-forward neural network training and protein-folding. The numerical results indicate that the new algorithm can significantly outperform simulated annealing and other competitors.

  6. Life-threatening interaction between the root extract of Pueraria lobata and methotrexate in rats

    SciTech Connect (OSTI)

    Chiang, H.-M.; Fang, S.-H.; Wen, K.-C.; Hsiu, S.-L.; Tsai, Shang-Yuan; Hou, Y.-C.; Chi, Y.-C.; Lee Chao, Pei-Dawn . E-mail: pdlee@mail.cmu.edu.tw

    2005-12-15

    Isoflavone supplements are nowadays widely used as alternative for hormone replacement therapy. However, the safety remains unanswered. This study attempted to investigate the effect of Pueraria lobata root decoction (PLRD), an isoflavone-rich herb, on the pharmacokinetics of methotrexate (MTX), a bicarboxylate antimetabolite with narrow therapeutic window. Rats were orally and intravenously given methotrexate alone and coadministered with PLRD. Blood samples were withdrawn via cardiopuncture at specific time points after drug administration. Serum methotrexate concentrations were assayed by specific monoclonal fluorescence polarization immunoassay method. Pharmacokinetic parameters were calculated using noncompartment model of WINNONLIN for both oral and intravenous data of MTX. Our results showed that coadministration of 4.0 g/kg and 2.0 g/kg of PLRD significantly increased the AUC{sub 0-t} by 207.8% and 127.9%, prolonged the mean residence time (MRT) by 237.8 and 155.2%, respectively, finally resulted in surprisingly high mortalities of 57.1% and 14.3% in rats. When MTX was given intravenously, the coadministration of PLRD at 4.0 g/kg significantly increased the half-life by 53.9% and decreased the clearance by 47.9%. In conclusion, the coadministration of PLRD significantly decreased the elimination and resulted in markedly increased exposure of MTX in rats.

  7. Scientific Breakeven for Fusion Energy For the past 40 years, the IFE fusion research community has adopted: achieving a fusion gain of 1 as

    E-Print Network [OSTI]

    Scientific Breakeven for Fusion Energy For the past 40 years, the IFE fusion research community has as fusion energy produced divided the external energy incident on the fusion reaction chamber. Typical fusion power plant design concepts require a fusion gain of 30 for MFE and 70 for IFE. Fusion energy

  8. Design of Mixed-mode Adaptive Loop Gain Bang-Bang Clock and Data Recovery and Process-Variation-Resilient Current Mode Logic 

    E-Print Network [OSTI]

    Jeon, Hyung-Joon

    2013-03-19

    -nonlinearity of the Bang-Bang Phase Detector (BBPD), the CDR loop gain is adaptively adjusted based on a posteriori jitter spectrum estimation. Maximizing advantages of analog and digital implementations, the proposed mixed-mode technique achieves PVT insensitive and power...

  9. The Patient Portal is not intended for use in emergencies. If you require urgent or immediate medical care, call 911. To gain access to our secure

    E-Print Network [OSTI]

    The Patient Portal is not intended for use in emergencies. If you require urgent or immediate medical care, call 911. To gain access to our secure server on Patient Portal and become web your portal! https://health.eclinicalworks.com/IUPUICampusHealth IUPUI Campus Health is now offering

  10. GLOBAL GAIN-SCHEDULING CONTROL FOR VARIABLE SPEED WIND TURBINES W. E. Leithead, D. J. Leith, F. Hardan, H.Markou

    E-Print Network [OSTI]

    Duffy, Ken

    1 GLOBAL GAIN-SCHEDULING CONTROL FOR VARIABLE SPEED WIND TURBINES W. E. Leithead, D. J. Leith, F wind turbines exhibit a separability property similar to that previously established for constant speed wind turbines. The importance of this result is that it establishes that from a control viewpoint

  11. The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. Page 1 of 2 How to gain access to internal vacancies

    E-Print Network [OSTI]

    Edinburgh, University of

    SC005336. Page 1 of 2 How to gain access to internal vacancies As a current University employee, you. To register as an internal applicant, log in to the University's jobs website. If you do not already have University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. Page

  12. Daily Gazette, Schenectady NY Letters to the Editor for Thursday, July 10, 2008 Nothing to fear, and much to gain, from waste-to-energy

    E-Print Network [OSTI]

    Columbia University

    , and much to gain, from waste-to-energy Schenectady is one of those misguided cities that sends its global warming and pollution of our environment. Waste-to-energy (WTE) is safe. I advised the Israel telling its public officials that WTE with modern, multi-stage air pollution controls is safe and has

  13. Generation of ultrahigh-speed tunable-rate optical pulses using strongly gain-coupled dual-wavelength DFB laser diodes

    E-Print Network [OSTI]

    Hui, Rongqing; Zhu, B.; Demarest, Kenneth; Allen, Christopher Thomas; Hong, Jin

    1999-05-01

    A novel and simple method to generate a variable-rate, ultrahigh-speed optical pulse train is demonstrated using a dual-wavelength, strongly gain-coupled distributed-feedback laser diode, The repetition rate of the optical pulse train...

  14. VISA IB: ULTRA-HIGH BANDWIDTH, HIGH GAIN SASE FEL G. Andonian, A. Murokh, R. Agustsson, C. Pellegrini, S. Reiche, J. B. Rosenzweig, and G. Travish

    E-Print Network [OSTI]

    Brookhaven National Laboratory

    VISA IB: ULTRA-HIGH BANDWIDTH, HIGH GAIN SASE FEL G. Andonian, A. Murokh, R. Agustsson, C spread SASE FEL experiment, the intermediary experiment linking the VISA I and VISA II projects. A highly-election lasers (SASE FEL) promises to be an invalu- able tool for the scientific community. There are current

  15. Master-Oscillator-Power-Amplifier (MOPA) Laser Sources Used as Drive Lasers for Photoinjectors for High-Gain, Free Electron Lasers (FELs)

    E-Print Network [OSTI]

    Anlage, Steven

    Master-Oscillator-Power-Amplifier (MOPA) Laser Sources Used as Drive Lasers for Photoinjectors Milchberg #12;- 1 - Abstract The realization of extremely high gain, and high power in Free Electron Lasers critically on the power and phase stability of the cathode drive laser, and conversely the type of FEL output

  16. Design and synthesis of privileged scaffolds for targeting RNA /

    E-Print Network [OSTI]

    Rynearson, Kevin D.

    2014-01-01

    Kr-402151) n.a. n.a. (Kr-402428) n.a. n.a. EC 50 is theamino)propane-nitrile (KR- 402428). Spectrum 4.42: Hydrogenamino)propane-nitrile (KR-402428). Spectrum 4.43: Crystal

  17. The Design and Use of Limited Access Privilege Programs

    E-Print Network [OSTI]

    ­ Office of Policy From technical contributions by the editors and: Soren Anderson; Mark Fina; Adam Tromble. NOAA Technical Memorandum NMFS-F/SPO-86 November 2007 U.S. Department of Commerce Carlos M, North Pacific Fishery Management Council staff; Adam Issenberg, NOAA General Counsel for Fisheries

  18. RBAC POLICIES IN XML FOR X.509 BASED PRIVILEGE MANAGEMENT

    E-Print Network [OSTI]

    Kent, University of

    management infrastructures where the roles are stored as X.509 Attribute Certificates in an LDAP directory inheritance. Role hierarchies can be defined, e.g. Director > Manager > Employee, in which the superior roles

  19. The Fine Print of State Environmental Audit Privileges

    E-Print Network [OSTI]

    Stensvaag, John-Mark

    1997-01-01

    underground storage facili- ties, 37 hazardous waste management, 13 hazardous waste cleanup, 39 solid waste management, 40 state dams,

  20. PASSPORTS TO PRIVILEGE: THE ENGLISH-MEDIUM SCHOOLS IN PAKISTAN

    E-Print Network [OSTI]

    Rahman, Tariq

    2005-01-01

    IN PAKISTAN TARIQ RAHMAN _____________________________________________________________________ ABSTRACT Based on two recent surveys of some selected urban areas of Pakistan, the author draws interesting conclusions in this article about the English... -medium schools in Pakistan. The elites of the country have long realized the power of the English language and have even institutionalized the process of acquiring the same. As seen elsewhere in South Asia, the English-speaking elites of the country profess...

  1. Crete: Endowed by Nature, Privileged by Geography, Threatened by Tourism?

    E-Print Network [OSTI]

    Zaferatos, Nicholas C.

    caused several unwanted economic, environmental and sociocultural impacts and, currently, it appears to threaten the island's sustainability. The principal goal of official development plans is the achievement of sustainable development and the promotion of tourismin the island. To make realisticsuggestions

  2. Arizona Department of Revenue Transaction Privilege Tax Exemption Certificate

    E-Print Network [OSTI]

    Ziurys, Lucy M.

    course of business. 2. Tangible personal property to be leased or rented in the ordinary course or valves four inches in diameter or greater to be used for transportation of oil, natural gas, artificial

  3. Lease of Power Privilege Flowchart: Award of Preliminary Lease through

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: Energy ResourcesProjectMississippi:Learned, Mississippi:Award of

  4. Lease of Power Privilege Flowchart: Dam Request Through Award of

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: Energy ResourcesProjectMississippi:Learned, Mississippi:Award

  5. Lease of Power Privilege Flowchart: Reserved Work Conduit Request Through

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: Energy ResourcesProjectMississippi:Learned,Award of Preliminary

  6. Lease of Power Privilege Flowchart: Transferred Work Conduit Request

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma, Arizona: Energy ResourcesProjectMississippi:Learned,Award of

  7. Effect of fruit removal on carbohydrate concentrations of cantaloupe (Cucumis melo L.) roots in naturally infested soil with Monosporascus cannonballus 

    E-Print Network [OSTI]

    Lee, Jang Hoon

    2004-09-30

    EFFECT OF FRUIT REMOVAL ON CARBOHYDRATE CONCENTRATIONS OF CANTALOUPE (Cucumis melo L.) ROOTS IN NATURALLY INFESTED SOIL WITH Monosporascus cannonballus A Thesis by JANG HOON LEE Submitted to the Office of Graduate Studies of Texas A...&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE December 2003 Major Subject: Plant Pathology EFFECT OF FRUIT REMOVAL ON CARBOHYDRATE CONCENTRATIONS OF CANTALOUPE (Cucumis melo L...

  8. Root health of HLB-affected groves: What are the issues and how can we manage them?

    E-Print Network [OSTI]

    Ma, Lena

    before harvest sugars move from the leaves into the fruit such that the Brix and the sugar:acid ratio measured a 45% reduction in fibrous roots for HLB+ trees compared to HLB- #12;Soil pH and well water in the wetted zone · Soil pH >6.5 and/or well water with bicarbonate (>100 ppm) are associated with >HLB

  9. Ratio of isolated photon cross sections in p(p)over-bar collisions at root s=630 and 1800 GeV

    E-Print Network [OSTI]

    Baringer, Philip S.; Bean, Alice; Coppage, Don; Hebert, C.

    2001-12-01

    The inclusive cross section for production of isolated photons has been measured in p (p) over bar collisions at roots = 630 GeV with the DO detector at the Fermilab Tevatron Collider. The photons span a transverse energy ...

  10. Research Note The removal of tree stumps and coarse roots from felling sites as a source of woody biomass for bioenergy generation

    E-Print Network [OSTI]

    in harvesting the stumps and root systems of trees to provide fuel for Combined Heat and Power (CHP) plants. On). There are obvious commercial benefits in exploiting this resource and some power companies an

  11. Modulation of Root Microbiome Community Assembly by the Plant Immune Response (2013 DOE JGI Genomics of Energy and Environment 8th Annual User Meeting)

    SciTech Connect (OSTI)

    Lebeis, Sarah [University of North Carolina

    2013-03-01

    Sarah Lebeis of University of North Carolina on "Modulation of root microbiome community assembly by the plant immune response" at the 8th Annual Genomics of Energy & Environment Meeting on March 28, 2013 in Walnut Creek, Calif.

  12. Inclusive jet and dijet production in polarized proton-proton collisions at [the square root of sigma] =200 GeV at RHIC

    E-Print Network [OSTI]

    Sakuma, Tai

    2010-01-01

    The inclusive jet cross section, the dijet cross section, and the dijet longitudinal double spin asymmetry ALL in polarized proton-proton collisions at [square root of sigma] = 200 GeV are measured with a data sample of ...

  13. Home / Privileged partnership with Japan to be explored on ITER: Privileged partnership with Japan to be explored on

    E-Print Network [OSTI]

    to this strategy, by setting out a European roadmap that will describe the scientific needs for research

  14. Abstract-A programmable gain and bandwidth first-order low-pass Gm-C filter is proposed, designed, and simulated.

    E-Print Network [OSTI]

    Rincon-Mora, Gabriel A.

    Abstract- A programmable gain and bandwidth first-order low-pass Gm-C filter is proposed, designed resulted in an input-referred offset of less than 0.5 mV and hand-over glitches below 5 mV. Keywords: Gm. Programmability A system-level schematic of the proposed monolithic Gm-C filter is shown in Fig. 1. The underlying

  15. Channel-capacity gain in entanglement-assisted communication protocols based exclusively on linear optics, single-photon inputs, and coincidence photon counting

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

    Lougovski, P.; Uskov, D. B.

    2015-08-04

    Entanglement can effectively increase communication channel capacity as evidenced by dense coding that predicts a capacity gain of 1 bit when compared to entanglement-free protocols. However, dense coding relies on Bell states and when implemented using photons the capacity gain is bounded by 0.585 bits due to one's inability to discriminate between the four optically encoded Bell states. In this research we study the following question: Are there alternative entanglement-assisted protocols that rely only on linear optics, coincidence photon counting, and separable single-photon input states and at the same time provide a greater capacity gain than 0.585 bits? In thismore »study, we show that besides the Bell states there is a class of bipartite four-mode two-photon entangled states that facilitate an increase in channel capacity. We also discuss how the proposed scheme can be generalized to the case of two-photon N-mode entangled states for N=6,8.« less

  16. Stimulation of precocious flowering of rooted slash pine cuttings, loblolly pine grafts, and Virginia pine seedlings by two nitrogen fertilizers 

    E-Print Network [OSTI]

    Holmes, Penelope Joy Dennis

    1981-01-01

    Tree Improv Conf, St. Paul, Minn, p11-16. Heybroek, H . M. and T. Visser. 1976 . Juvenility in fruit growing and forestry. Acta Horticulturae 56:71-80. Hoekstra, P. E. and F. Mergen. 1957. Experimental induction of female flowers on young slash pine.... Fertilization of an eight- year-old slash pine plantation thinned for seed production. In Proc 10th South Forest Tree Improv Conf, Houston, Texas, p217-221. Mott, R. L. 1977. Rooting of conifer propaoules. In Proc 13th Lake States Forest Tree Improv Conf, St...

  17. Experimental Investigation of the Root Cause Mechanism and Effectiveness of Mitigating Actions for Axial Offset Anomaly in Pressurized Water Reactors

    SciTech Connect (OSTI)

    Said Abdel-Khalik

    2005-07-02

    Axial offset anomaly (AOA) in pressurized water reactors refers to the presence of a significantly larger measured negative axial offset deviation than predicted by core design calculations. The neutron flux depression in the upper half of high-power rods experiencing significant subcooled boiling is believed to be caused by the concentration of boron species within the crud layer formed on the cladding surface. Recent investigations of the root-cause mechanism for AOA [1,2] suggest that boron build-up on the fuel is caused by precipitation of lithium metaborate (LiBO2) within the crud in regions of subcooled boiling. Indirect evidence in support of this hypothesis was inferred from operating experience at Callaway, where lithium return and hide-out were, respectively, observed following power reductions and power increases when AOA was present. However, direct evidence of lithium metaborate precipitation within the crud has, heretofore, not been shown because of its retrograde solubility. To this end, this investigation has been undertaken in order to directly verify or refute the proposed root-cause mechanism of AOA, and examine the effectiveness of possible mitigating actions to limit its impact in high power PWR cores.

  18. Synchrotron micro-scale study of trace metal transport and distribution in Spartina alterniflora root system in Yangtze River intertidal zone

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

    Feng, Huan; Tappero, Ryan; Zhang, Weiguo; Liu, Wenliang; Yu, Lizhong; Qian, Yu; Wang, Jun; Wang, Jia -Jun; Eng, Christopher; Liu, Chang -Jun; et al

    2015-07-26

    This study is focused on micro-scale measurement of metal (Ca, Cl, Fe, K, Mn, Cu, Pb, and Zn) distributions in Spartina alterniflora root system. The root samples were collected in the Yangtze River intertidal zone in July 2013. Synchrotron X-ray fluorescence (XRF), computed microtomography (CMT), and X-ray absorption near-edge structure (XANES) techniques, which provide micro-meter scale analytical resolution, were applied to this study. Although it was found that the metals of interest were distributed in both epidermis and vascular tissue with the varying concentrations, the results showed that Fe plaque was mainly distributed in the root epidermis. Other metals (e.g.,more »Cu, Mn, Pb, and Zn) were correlated with Fe in the epidermis possibly due to scavenge by Fe plaque. Relatively high metal concentrations were observed in the root hair tip. As a result, this micro-scale investigation provides insights of understanding the metal uptake and spatial distribution as well as the function of Fe plaque governing metal transport in the root system.« less

  19. SU-E-T-342: Use of Patient Geometry Measurements to Predict Dosimetric Gain with VMAT Over 3D for Chestwall and Regional Nodal Radiation

    SciTech Connect (OSTI)

    Dumane, V; Knoll, M; Green, S; Bakst, R [The Mount Sinai Medical Center, NY, NY (United States); Hunt, M [Mem Sloan-Kettering Cancer Ctr, NY, NY (United States); Steinberger, E [The Mount Sinai School of Medicine, NY, NY (United States)

    2014-06-01

    Purpose: To predict the dosimetric gain of VMAT over 3D for the treatment ofchestwall/IMN/supraclavicular nodes using geometric parameters acquired during simulation Methods: CT scans for 20 left and 20 right sided patients were retrospectively analyzed toobtain percent ipsilateral lung volume included in the PWT and supraclavicular fields, central lung depth (CLD), maximum lung depth (MLD), separation, chestwall concavity (defined here as the product of CLD and separation) and the maximum heart depth (MHD). VMAT, PWT and P/E plans were done for each case. The ipsilateral lung V20 Gy and mean, total lung V20 Gy and mean, heart V25 Gy and mean were noted for each plan. Correlation coefficients were obtained and linear regression models were built using data from the above training set of patients and then tested on 4 new patients. Results: The decrease in ipsilateral lung V20 Gy, total lung V20 Gy, ipsilateral lung mean and total lung mean with VMAT over PWT significantly (p<0.05) correlated with the percent volume of ipsilateral lung included in the PWT and supraclavicular fields with correlation coefficient values of r = 0.83, r = 0.77, r = 0.78 and r = 0.75 respectively. Significant correlations were also found between MHD and the decrease in heart V25 Gy and mean of r = 0.77 and r = 0.67 respectively. Dosimetric improvement with VMAT over P/E plans showed no correlation to any of the geometric parameters investigated in this study. The dosimetric gain predicted for the 4 test cases by the linear regression models given their respective percent ipsilateral lung volumes fell within the 95% confidence intervals around the best regression fit. Conclusion: The percent ipsilateral lung volume appears to be a strong predictor of the dosimetric gain on using VMAT over PWT apriori.

  20. Efficient Excitation of Gain-Saturated Sub-9-nm-Wavelength Tabletop Soft-X-Ray Lasers and Lasing Down to 7.36 nm

    SciTech Connect (OSTI)

    Alessi, David [Colorado State University, Fort Collins; Wang, Yong [Colorado State University, Fort Collins; Luther, Brad [Colorado State University, Fort Collins; Yin, Liang [Colorado State University, Fort Collins; Martz, Dale [Colorado State University, Fort Collins; Woolston, Mark [Colorado State University, Fort Collins; Liu, Yanwei [University of California, Berkeley & LBNL; Berrill, Mark A [ORNL; Jorge, Rocca [Colorado State University, Fort Collins

    2011-01-01

    We have demonstrated the efficient generation of sub-9-nm-wavelength picosecond laser pulses of microjoule energy at 1-Hz repetition rate with a tabletop laser. Gain-saturated lasing was obtained at =8.85 nm in nickel-like lanthanum ions excited by collisional electron-impact excitation in a precreated plasma column heated by a picosecond optical laser pulse of 4-J energy. Furthermore, isoelectronic scaling along the lanthanide series resulted in lasing at wavelengths as short as =7.36 nm. Simulations show that the collisionally broadened atomic transitions in these dense plasmas can support the amplification of subpicosecond soft-x-ray laser pulses.

  1. Exploring JavaScript and ROOT technologies to create Web-based ATLAS analysis and monitoring tools

    E-Print Network [OSTI]

    Sanchez, Arturo; The ATLAS collaboration

    2015-01-01

    We explore the potentialities of current web applications to create online interfaces that allow the visualization, interaction and real physics cut-based analysis and monitoring of processes trough a web browser. The project consists in the initial development of web-based and cloud computing services to allow students and researches to perform fast and very useful cut-based analysis on a browser, reading and using real data and official Monte-Carlo simulations stored in ATLAS computing facilities. Several tools are considered: ROOT, JavaScript and HTML. Our study case is the current cut-based H->ZZ->llqq analysis of the ATLAS experiment. Preliminary but satisfactory results have been obtained online; this presentation describes the tests and plans and future upgrades.

  2. Exploring JavaScript and ROOT technologies to create Web-based ATLAS analysis and monitoring tools

    E-Print Network [OSTI]

    Sanchez, Arturo; The ATLAS collaboration

    2015-01-01

    We explore the potentialities of current web applications to create online interfaces that allow the visualization, interaction and real physics cut-based analysis and monitoring of processes trough a web browser. The project consists in the initial development of web-based and cloud computing services to allow students and researches to perform fast and very useful cut-based analysis on a browser, reading and using real data and official Monte-Carlo simulations stored in ATLAS computing facilities. Several tools are considered: ROOT, JavaScript and HTML. Our study case is the current cut-based $H \\rightarrow ZZ \\rightarrow llqq$ analysis of the ATLAS experiment. Preliminary but satisfactory results have been obtained online.

  3. TPCP: Rhizina Root Disease RHIZINA ROOT DISEASE

    E-Print Network [OSTI]

    , insecticide treatments at planting are often required. http://www.up.ac.za/academic/fabi/tpcp/pamphlets information, please contact us. http://www.up.ac.za/academic/fabi/tpcp/pamphlets/rhizina.htm (2 of 3) [2002 with light margins. These are often associated with dying seedlings. Back to INDEX of pamphlets... http://www.up.ac.za/academic/fabi/tpcp/pamphlets

  4. TPCP: Armillaria Root Rot ARMILLARIA ROOT ROT

    E-Print Network [OSTI]

    never been shown. The inoculum in the hard eucalypts could then be difficult http://www.up.ac.za/academic/fabi/tpcp/pamphlets

  5. Draft Genome sequence of Frankia sp. Strain QA3, a nitrogen-fixing actinobacterium isolated from the root nodule of Alnus nitida

    SciTech Connect (OSTI)

    Sen, Arnab; Beauchemin, Nicholas; Bruce, David; Chain, Patrick S. G.; Chen, Amy; Davenport, Karen W.; Deshpande, Shweta; Detter, J. Chris; Furnholm, Teal; Ghodhbane-Gtari, Faten; Goodwin, Lynne A.; Gtari, Maher; Han, James; Huntemann, Marcel; Ivanova, N; Kyrpides, Nikos C; Land, Miriam L; Markowitz, Victor; Mavromatis, K; Nolan, Matt; Nouioui, Imen; Pagani, Ioanna; Pati, Amrita; Pitluck, Sam; Santos, Catarina; Sur, Saubashya; Szeto, Ernest; Tavares, Fernando; Teshima, Hazuki; Thakur, Subarna; Wall, Luis; Woyke, Tanja; Wishart, Jessie; Tisa, Louis S.

    2013-01-01

    Members of actinomycete genus Frankia form a nitrogen-fixing symbiosis with 8 different families of actinorhizal plants. We report a high-quality draft genome sequence for Frankia sp. stain QA3, a nitrogen-fixing actinobacterium isolated from root nodules of Alnus nitida.

  6. Proton-? [Proton - lambda] correlations in central Pb + Pb collisions at ?sNN [square root of s subscript NN] =17.3 GeV

    E-Print Network [OSTI]

    Roland, Christof E.

    The momentum correlation between protons and ? [lambda] particles emitted from central Pb+Pb collisions at ?sNN=17.3 [square root of s subscript NN = 17.3] GeV was studied by the NA49 experiment at the CERN Super Proton ...

  7. Ratios of multijet cross sections in p(p)over-bar collisions at root s=1.8 TeV

    E-Print Network [OSTI]

    Baringer, Philip S.; Bean, Alice; Coppage, Don; Hebert, C.

    2001-03-01

    We report on a study of the ratio of inclusive three-jet to inclusive two-jet production cross sections as a function of total transverse energy in p (p) over bar collisions at it center-of-mass energy roots = 1.8 TeV, ...

  8. Evolution of the nuclear modification factors with rapidity and centrality in d+Au collisions at root(NN)-N-S=200 GeV

    E-Print Network [OSTI]

    Sanders, Stephen J.

    2004-12-10

    We report on a study of the transverse momentum dependence of nuclear modification factors R-dAu for charged hadrons produced in deuteron + gold collisions at roots(NN) = 200 GeV, as a function of collision centrality and of the pseudorapidity (eta...

  9. Centrality dependence of charged hadron production in deuteron plus gold and nucleon plus gold collisions at root S(NN)=200 GeV 

    E-Print Network [OSTI]

    Adler, S. S.; Afanasiev, S.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Al-Jamel, A.; Alexander, J.; Aoki, K.; Aphecetche, L.; Armendariz, R.; Aronson, S. H.; Averbeck, R.; Awes, T. C.; Babintsev, V.; Baldisseri, A.; Barish, K. N.; Barnes, P. D.; Bassalleck, B.; Bathe, S.; Batsouli, S.; Baublis, V.; Bauer, F.; Bazilevsky, A.; Belikov, S.; Bjorndal, M. T.; Boissevain, J. G.; Borel, H.; Brooks, M. L.; Brown, D. S.; Bruner, N.; Bucher, D.; Buesching, H.; Bumazhnov, V.; Bunce, G.; Burward-IIoy, J. M.; Butsyk, S.; Camard, X.; Chand, P.; Chang, W. C.; Chernichenko, S.; Chi, C. Y.; Chiba, J.; Chiu, M.; Choi, I. J.; Choudhury, R. K.; Chujo, T.; Cianciolo, V.; Citron, Z.; Cobigo, Y.; Cole, B. A.; Comets, M. P.; Constantin, P.; Csanad, M.; Csorgo, T.; Cussonneau, J. P.; d'Enterria, D.; Das, K.; David, G.; Deak, F.; Delagrange, H.; Denisov, A.; Deshpande, A.; Desmond, E. J.; Devismes, A.; Dietzsch, O.; Drachenberg, J. L.; Drapier, O.; Drees, A.; Durum, A.; Dutta, D.; Dzhordzhadze, V.; Efremenko, Y. V.; En'yo, H.; Espagnon, B.; Esumi, S.; Fields, D. E.; Finck, C.; Fleuret, F.; Fokin, S. L.; Fox, B. D.; Fraenkel, Z.; Frantz, J. E.; Franz, A.; Frawley, A. D.; Fukao, Y.; Fung, S. -Y; Gadrat, S.; Germain, M.; Glenn, A.; Gonin, M.; Gosset, J.; Goto, Y.; de Cassagnac, R. Granier; Grau, N.; Greene, S. V.; Perdekamp, M. Grosse; Gustafsson, H. -A; Hachiya, T.; Haggerty, J. S.; Hamagaki, H.; Hansen, A. G.; Hartouni, E. P.; Harvey, M.; Hasuko, K.; Hayano, R.; He, X.; Heffner, M.; Hemmick, T. K.; Heuser, J. M.; Hidas, P.; Hiejima, H.; Hill, J. C.; Hobbs, R.; Holzmann, W.; Homma, K.; Hong, B.; Hoover, A.; Horaguchi, T.; Ichihara, T.; Ikonnikov, V. V.; Imai, K.; Inaba, M.; Inuzuka, M.; Isenhower, D.; Isenhower, L.; Ishihara, M.; Issah, M.; Isupov, A.; Jacak, B. V.; Jia, J.; Jinnouchi, O.; Johnson, B. M.; Johnson, S. C.; Joo, K. S.; Jouan, D.; Kajihara, F.; Kametani, S.; Kamihara, N.; Kaneta, M.; Kang, J. H.; Katou, K.; Kawabata, T.; Kazantsev, A. V.; Kelly, S.; Khachaturov, B.; Khanzadeev, A.; Kikuchi, J.; Kim, D. J.; Kim, E.; Kim, G. -B; Kim, H. J.; Kinney, E.; Kiss, A.; Kistenev, E.; Kiyomichi, A.; Klein-Boesing, C.; Kobayashi, H.; Kochenda, L.; Kochetkov, V.; Kohara, R.; Komkov, B.; Konno, M.; Kotchetkov, D.; Kozlov, A.; Kroon, P. J.; Kuberg, C. H.; Kunde, G. J.; Kurita, K.; Kweon, M. J.; Kwon, Y.; Kyle, G. S.; Lacey, R.; Lajoie, J. G.; Le Bornec, Y.; Lebedev, A.; Leckey, S.; Lee, D. M.; Leitch, M. J.; Leite, M. A. L.; Li, X. H.; Lim, H.; Litvinenko, A.; Liu, M. X.; Maguire, C. F.; Makdisi, Y. I.; Malakhov, A.; Manko, V. I.; Mao, Y.; Martinez, G.; Masui, H.; Matathias, F.; Matsumoto, T.; McCain, M. C.; McGaughey, P. L.; Miake, Y.; Miller, T. E.; Milov, A.; Mioduszewski, Saskia; Mishra, G. C.; Mitchell, J. T.; Mohanty, A. K.; Morrison, D. P.; Moss, J. M.; Mukhopadhyay, D.; Muniruzzaman, M.; Nagamiya, S.; Nagle, J. L.; Nakamura, T.; Newby, J.; Nyanin, A. S.; Nystrand, J.; O'Brien, E.; Ogilvie, C. A.; Ohnishi, H.; Ojha, I. D.; Okada, H.; Okada, K.; Oskarsson, A.; Otterlund, I.; Oyama, K.; Ozawa, K.; Pal, D.; Palounek, A. P. T.; Pantuev, V.; Papavassiliou, V.; Park, J.; Park, W. J.; Pate, S. F.; Pei, H.; Penev, V.; Peng, J. -C; Pereira, H.; Peresedov, V.; Pierson, A.; Pinkenburg, C.; Pisani, R. P.; Purschke, M. L.; Purwar, A. K.; Qualls, J. M.; Rak, J.; Ravinovich, I.; Read, K. F.; Reuter, M.; Reygers, K.; Riabov, V.; Riabov, Y.; Roche, G.; Romana, A.; Rosati, M.; Rosendahl, S. S. E.; Rosnet, P.; Rykov, V. L.; Ryu, S. S.; Saito, N.; Sakaguchi, T.; Sakai, S.; Samsonov, V.; Sanfratello, L.; Santo, R.; Sato, H. D.; Sato, S.; Sawada, S.; Schutz, Y.; Semenov, V.; Seto, R.; Shea, T. K.; Shein, I.; Shibata, T. -A; Shigaki, K.; Shimomura, M.; Sickles, A.; Silva, C. L.; Silvermyr, D.; Sim, K. S.; Soldatov, A.; Soltz, R. A.; Sondheim, W. E.; Sorensen, S. P.; Sourikova, I. V.; Staley, F.; Stankus, P. W.; Stenlund, E.; Stepanov, M.; Ster, A.; Stoll, S. P.; Sugitate, T.; Sullivan, J. P.; Takagi, S.; Takagui, E. M.; Taketani, A.; Tanaka, K. H.; Tanaka, Y.; Tanida, K.; Tannenbaum, M. J.; Taranenko, A.; Tarjan, P.; Thomas, T. L.; Togawa, M.; Tojo, J.; Torii, H.; Towell, R. S.; Tram, V. -N; Tserruya, I.; Tsuchimoto, Y.; Tydesjo, H.; Tyurin, N.; Uam, T. J.; Velkovska, J.; Velkovsky, M.; Veszpremi, V.; Vinogradov, A. A.; Volkov, M. A.; Vznuzdaev, E.; Wang, X. R.; Watanabe, Y.; White, S. N.; Willis, N.; Wohn, F. K.; Woody, C. L.; Xie, W.; Yanovich, A.; Yokkaichi, S.; Young, G. R.; Yushmanov, I. E.; Zajc, W. A.; Zhang, C.; Zhou, S.; Zimanyi, J.; Zolin, L.; Zong, X.; vanHecke, H. W.; Phenix Collaboration.

    2008-01-01

    We report on p-Lambda, p-(Lambda) over bar, (p) over bar-Lambda, and (p) over bar-(Lambda) over bar correlation functions constructed in central Au-Au collisions at root s(NN) = 200 GeV by the STAR experiment at RHIC. The ...

  10. Petrophysical properties of the root zone of sheeted dikes in the ocean crust: A case study from Hole ODP/IODP 1256D, Eastern Equatorial Pacific

    E-Print Network [OSTI]

    Demouchy, Sylvie

    Program) Site 1256 is located on the Cocos Plate in the Eastern Equatorial Pacific Ocean, in a 15 Ma oldPetrophysical properties of the root zone of sheeted dikes in the ocean crust: A case study from Hole ODP/IODP 1256D, Eastern Equatorial Pacific Marie Violay , Philippe A. Pezard, Benoît Ildefonse

  11. Synchrotron micro-scale measurement of metal distributions in Phragmites australis and Typha latifolia root tissue from an urban brownfield site

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

    Feng, Huan; Qian, Yu; Gallagher, Frank J.; Zhang, Weiguo; Yu, Lizhong; Liu, Chang -Jun; Jones, Keith W.; Tappero, Ryan

    2015-11-01

    Liberty State Park in New Jersey, USA, is a “brownfield” site containing various levels of contaminants. To investigate metal uptake and distributions in plants on the brownfield site, Phragmites australis and Typha latifolia were collected in Liberty State Park during the growing season (May–September) in 2011 at two sites with the high and low metal loads, respectively. The objective of this study was to understand the metal (Fe, Mn, Cu, Pb and Zn) concentration and spatial distributions in P. australis and T. latifolia root systems with micro-meter scale resolution using synchrotron X-ray microfluorescence (?XRF) and synchrotron X-ray computed microtomography (?CMT)more »techniques. The root structure measurement by synchrotron ?CMT showed that high X-ray attenuation substance appeared in the epidermis. Synchrotron ?XRF measurement showed that metal concentrations and distributions in the root cross-section between epidermis and vascular tissue were statistically different. Significant correlations were found between metals (Cu, Mn, Pb and Zn) and Fe in the epidermis, implying that metals were scavenged by Fe oxides. The results from this study suggest that the expression of metal transport and accumulation within the root systems may be element specific. The information derived from this study can improve our current knowledge of the wetland plant ecological function in brownfield remediation.« less

  12. Atmospheric deposition, resuspension and root uptake of plutonium in corn and other grain-producing agroecosystems near a nuclear fuel facility

    SciTech Connect (OSTI)

    Pinder, J.E. III; McLeod, K.W.; Adriano, D.C. (Savannah River Ecology Lab., Aiken, SC (United States)); Corey, J.C.; Boni, A.L. (Savannah River Lab., Aiken, SC (United States))

    1989-01-01

    Plutonium released to the environment may contribute to dose to humans through inhalation or ingestion of contaminated foodstuffs. Plutonium contamination of agricultural plants may result from interception and retention of atmospheric deposition, resuspension of Pu-bearing soil particles to plant surfaces, and root uptake and translocation to grain. Plutonium on vegetation surfaces may be transferred to grain surfaces during mechanical harvesting. Data obtained from corn grown near the US Department of Energy's H-Area nuclear fuel chemical separations facility on the Savannah River Site was used to estimated parameters of a simple model of Pu transport in agroecosystems. The parameter estimates for corn were compared to those previously obtained for wheat and soybeans. Despite some differences in parameter estimates among crops, the relative importances of atmospheric deposition, resuspension and root uptake were similar among crops. For even small deposition rates, the relative importances of processes for Pu contamination of corn grain should be: transfer of atmospheric deposition from vegetation surfaces to grain surfaces during combining > resuspension of soil to grain surfaces > root uptake. Approximately 3.9 {times} 10{sup {minus}5} of a year's atmospheric deposition is transferred to grain. Approximately 6.2 {times} 10{sup {minus}9} of the Pu inventory in the soil is resuspended to corn grain, and a further 7.3 {times} 10{sup {minus}10} of the soil inventory is absorbed by roots and translocated to grains.

  13. Atmospheric deposition, resuspension and root uptake of plutonium in corn and other grain-producing agroecosystems near a nuclear fuel facility

    SciTech Connect (OSTI)

    Pinder, J.E. III; McLeod, K.W.; Adriano, D.C. [Savannah River Ecology Lab., Aiken, SC (United States); Corey, J.C.; Boni, A.L. [Savannah River Lab., Aiken, SC (United States)

    1989-12-31

    Plutonium released to the environment may contribute to dose to humans through inhalation or ingestion of contaminated foodstuffs. Plutonium contamination of agricultural plants may result from interception and retention of atmospheric deposition, resuspension of Pu-bearing soil particles to plant surfaces, and root uptake and translocation to grain. Plutonium on vegetation surfaces may be transferred to grain surfaces during mechanical harvesting. Data obtained from corn grown near the US Department of Energy`s H-Area nuclear fuel chemical separations facility on the Savannah River Site was used to estimated parameters of a simple model of Pu transport in agroecosystems. The parameter estimates for corn were compared to those previously obtained for wheat and soybeans. Despite some differences in parameter estimates among crops, the relative importances of atmospheric deposition, resuspension and root uptake were similar among crops. For even small deposition rates, the relative importances of processes for Pu contamination of corn grain should be: transfer of atmospheric deposition from vegetation surfaces to grain surfaces during combining > resuspension of soil to grain surfaces > root uptake. Approximately 3.9 {times} 10{sup {minus}5} of a year`s atmospheric deposition is transferred to grain. Approximately 6.2 {times} 10{sup {minus}9} of the Pu inventory in the soil is resuspended to corn grain, and a further 7.3 {times} 10{sup {minus}10} of the soil inventory is absorbed by roots and translocated to grains.

  14. Grass Roots Entrepreneurship and Innovation: Micro-Enterprise in Social Care Kelly Hall, Catherine Needham and Kerry Allen, University of Birmingham, UK

    E-Print Network [OSTI]

    Birmingham, University of

    1 Grass Roots Entrepreneurship and Innovation: Micro-Enterprise in Social Care Kelly Hall conceptions of social care and have been promoted by the UK government as highly innovative, personalised to which they outperform larger care providers in delivering valued, innovative, personalised and cost

  15. Search for Quark Compositeness with the Dijet Centrality Ratio in pp Collisions at [square root of] s=7??TeV

    E-Print Network [OSTI]

    Alver, Burak Han

    A search for quark compositeness in the form of quark contact interactions, based on hadronic jet pairs (dijets) produced in proton-proton collisions at ?s=7??[square root of s=7] TeV, is described. The data sample of the ...

  16. This interdisciplinary major focuses on the roots of social conflict, on theories and methods for understanding them, and on the non-governmental

    E-Print Network [OSTI]

    Leahy, Richard M.

    This interdisciplinary major focuses on the roots of social conflict, on theories and methods)* SOCI 313: Sociological Research Methods SOCI 314: Analyzing Social Statistics Core Theory (select one)** POSC 380: Political Theories and Social Reform SOCI 370: Sociological Theory Perspectives on NGOs

  17. The plant embryo is a relatively simple structure consisting of a primordial shoot and root, whose development is frozen in the

    E-Print Network [OSTI]

    Murray, J.A.H.

    138 The plant embryo is a relatively simple structure consisting of a primordial shoot and root, whose development is frozen in the form of a seed. Most development of the mature plant takes place post that control the plant cell cycle at a molecular level, and the first attempts have been made to control plant

  18. Genetic diversity in chestnuts of Kashmir valley Efficient managing practices require an understanding of the root distribution of crop in walnut (Juglans regia)-crop

    E-Print Network [OSTI]

    Xi, Weimin

    variation of roots for soybean (Glycine max) and peanut (Arachis hypogaea) grown with walnut trees. Crop. The RLD of intercropped peanut primarily located in the 0-10 cm soil layer, reaching the average of 52 peanut was achieved in the 10-20 cm soil layer. The RLDs of both intercropped soybean and peanut

  19. arXiv:0712.3649v2[math.CO]2Apr2008 A bijection for rooted maps on orientable surfaces

    E-Print Network [OSTI]

    Chapuy, Guillaume

    arXiv:0712.3649v2[math.CO]2Apr2008 A bijection for rooted maps on orientable surfaces Guillaume geometry of large random planar maps, hopefully opening the way to the study of a model of continuum random motivation is still to explore the unexpected enumerative properties of these objects: For instance

  20. Fine root dynamics in a loblolly pine forest are influenced by free-air-CO2-enrichment: a six-year-minirhizotron

    E-Print Network [OSTI]

    Oren, Ram

    ). Accelerating rates of anthropogenic CO2 emissions into the atmosphere, and accompanying forcing effects world, and that this will slow the rate of increase of atmospheric CO2 (DeLucia et al., 2005). In 1996Fine root dynamics in a loblolly pine forest are influenced by free-air-CO2-enrichment: a six

  1. Search for rare events in [the square root of sigma nu nu] = 200 GeV Au+Au PHOBOS data

    E-Print Network [OSTI]

    Mott, Alexander (Alexander Robert)

    2009-01-01

    In this analysis, we set an upper bound on the rate of rare events: events whose dN/dn distribution deviates more than statistically from the ensemble average dN/dn distribution for s [the square root of sigma nu nu] = 200 ...

  2. Managers spur productivity gains. [USA

    SciTech Connect (OSTI)

    Brezovec, D.

    1981-12-01

    Output per worker hour grows at U.S. coal mines as management gears training programs and operating practices to fight falling productivity.

  3. NOx Reduction through Efficiency Gain 

    E-Print Network [OSTI]

    Benz, R.; Thompson, R.; Staedter, M.

    2007-01-01

    . Moreover, possible changes in fuel type (in dual fire applications), the introduction of Flue Gas Recirculation and system characteristics such as burner properties introduce further nonlinearities to the air/fuel ratio. Since these system... reactions. Additional tuning parameters include separate behavior management for different fuels in dual fuel applications, incorporation of multiple fans, and control of any dampers that might remain in the system. Human Machine Interface...

  4. Lot sizing with inventory gains

    E-Print Network [OSTI]

    2006-11-23

    feasible schedule that minimizes the fixed setup costs and per unit production and inventory costs. ...... Engineering, Georgia Institute of Technology. Wolsey, L.

  5. Linda Gaines | Argonne National Laboratory

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Homesum_a_epg0_fpd_mmcf_m.xls" ,"Available from WebQuantityBonneville Power Administration would likeUniverseIMPACTThousand CubicResourcelogo and-E C H2015Tray and| NationalLinacLinda

  6. Interaction of root nodule size and oxygen pressure on the rate of nitrogen fixation by cowpea and peanut

    SciTech Connect (OSTI)

    Sen, D.; Weaver, R.W.

    1987-04-01

    Size and anatomical features of nodules influence the rate of O/sub 2/ diffusion into nodules. Availability of oxygen can be a limiting factor in nitrogen fixation. Larger nodules have thicker cortices and low surface to volume ratio leading to lower rates of gaseous diffusion. Increased oxygen pressure in the environment alters the rate of nitrogen fixation but the rate of change may depend on the nodule size. This was investigated by measuring /sup 15/N/sub 2/ incorporation into nodules. Root nodules from 38 day old cowpea and peanut plants were collected and sorted into size groups having diameters of >3 mm, 2-3 mm, and just below 2 mm. Samples of each size group were enclosed in tubes and exposed to various combination of oxygen (8-28%) and /sup 15/N/sub 2/. With higher O/sub 2/ pressure all nodules showed increased N/sub 2/ fixation but the largest nodules showed the maximum increase. Specific activity of larger nodules was higher for N/sub 2/ fixation. For the sizes of nodules examined the largest nodules did not reflect any of the disadvantages of the large size but the benefits of higher rates of O/sub 2/ entry was evident.

  7. Gulf Coast-East Coast magnetic anomaly I: Root of the main crustal decollement for the Appalachian-Ouachita orogen

    SciTech Connect (OSTI)

    Hall, D.J. (Total Minatome Corporation, Houston, TX (USA))

    1990-09-01

    The Gulf Coast-East Coast magnetic anomaly extends for at least 4000 km from south-central Texas to offshore Newfoundland as one of the longest continuous tectonic features in North America and a major crustal element of the entire North Atlantic-Gulf Coast region. Analysis of 28 profiles spaced at 100km intervals and four computed models demonstrate that the anomaly may be explained by a thick zone of mafic and ultramafic rocks averaging 13-15 km in depth. The trend of the anomaly closely follows the trend of main Appalachian features: in the Gulf Coast of Louisiana, the anomaly is as far south of the Ouachita front as it is east of the western limit of deformation through the central Appalachians. Because the anomaly continues across well-known continental crust in northern Florida and onshore Texas, it cannot plausibly be ascribed to an edge effect at the boundary of oceanic with continental crustal compositions. The northwest-verging, deep-crustal events discovered in COCORP data from the Ouachitas and Appalachians suggest an analogy with the main suture of the Himalayan orogen in the Tibetan Plateau. In this paper the anomaly is identified with the late Paleozoic Alleghenian megasuture, in which the northwest-verging crustal-detachment surfaces ultimately root.

  8. Cotton Root Rot Studies with Special Reference to Sclerotia, Cover Crops, Rotations, Tillage, Seeding Rates, Soil Fungicides, and Effects on Seed Quality. 

    E-Print Network [OSTI]

    Rogers, Cyril H.

    1942-01-01

    and Composition of Viable and Non-Viable Sclerotia------------ 19 of ,Certain Monocotyledonous Plants by the .Root-Rot Fungus 21 e of Legumes Under Blackland Conditions 24 Sweet Clovers 2 4 Sesbania 2 5 Guar 25 Cowpeas -_--. totations and Grr ires... to be adapted to blackland soils under rot conditions. Of the many legume species tested at the Blacl Experiment Station, the sweet clovers (Melibotus spp.) , Sesbania, (Cyarnopsia tetragonoloba) and cowpea (Vigna sinensis) have proved adaptable. S~veet c1o...

  9. Atmospheric deposition, resuspension, and root uptake of Pu in corn and other grain-producing agroecosystems near a nuclear fuel facility

    SciTech Connect (OSTI)

    Pinder, J.E. III; McLeod, K.W.; Adriano, D.C.; Corey, J.C.; Boni, A.L. (Savannah River Ecology Laboratory, Aiken, SC (USA))

    1990-12-01

    Plutonium released to the environment may contribute to dose to humans through inhalation or ingestion of contaminated foodstuffs. Plutonium contamination of agricultural plants may result from interception and retention of atmospheric deposition, resuspension of Pu-bearing soil particles to plant surfaces, and root uptake. Plutonium on vegetation surfaces may be transferred to grain surfaces during mechanical harvesting. Data obtained from corn grown near the U.S. Department of Energy's H-Area nuclear fuel chemical separations facility on the Savannah River Site were used to estimate parameters of a simple model of Pu transport in agroecosystems. The parameter estimates for corn were compared to those previously obtained for wheat and soybeans. Despite some differences in parameter estimates among crops, the relative importances of atmospheric deposition, resuspension, and root uptake were similar among crops. For even small deposition rates, the relative importances of processes for Pu contamination of corn grain should be: transfer of atmospheric deposition from vegetation surfaces to grain surfaces during combining greater than resuspension of soil to grain surfaces greater than root uptake. Approximately 3.9 X 10(-5) of a year's atmospheric deposition is transferred to grain. Approximately 6.2 X 10(-9) of the Pu inventory in the soil is resuspended to corn grain, and a further 7.3 X 10(-10) of the soil Pu inventory is absorbed and translocated to grains.

  10. Search for Supersymmetry Using Final States with One Lepton, Jets, and Missing Transverse Momentum with the ATLAS Detector in ?s=7??[square root of s=7] TeV pp Collisions

    E-Print Network [OSTI]

    Taylor, Frank E.

    This Letter presents the first search for supersymmetry in final states containing one isolated electron or muon, jets, and missing transverse momentum from ?s=7??[square root of s=7] TeV proton-proton collisions at the ...

  11. We are looking for Medical Scribe candidates who are looking to gain valuable experience by working closely with physicians as a Medical Scribe for Essia Health. Our Medical Scribes assist directly with a

    E-Print Network [OSTI]

    Firestone, Jeremy

    each year. Essia Health is looking to hire and train Medical Scribes to work in Bel Air and Havre deWe are looking for Medical Scribe candidates who are looking to gain valuable experience by working closely with physicians as a Medical Scribe for Essia Health. Our Medical Scribes assist directly

  12. The marketing concentration provides students with many opportunities to gain experience in developing marketing strategies and tactics. The curriculum provides flexibility for each student to select marketing electives that align with his or her career i

    E-Print Network [OSTI]

    The marketing concentration provides students with many opportunities to gain experience in developing marketing strategies and tactics. The curriculum provides flexibility for each student to select marketing electives that align with his or her career interests. What Do Professionals in Marketing Do

  13. The Mickey Leland Energy Fellowship (MLEF) Program provides college students with an opportunity to gain and develop research skills with the Department of Energy's Office of Fossil Energy for 10 weeks over the summer. This program is designed

    E-Print Network [OSTI]

    Hart, Gus

    The Mickey Leland Energy Fellowship (MLEF) Program provides college students with an opportunity to gain and develop research skills with the Department of Energy's Office of Fossil Energy for 10 weeks the DOE is working to meet the energy challenges of the future. · Receive a stipend. Some participants may

  14. Root cause outline

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

    a COTS solution existed, and that it would be relatively simple to install compared to building a system in-house. Other transmission utilities had purchased COTS software for...

  15. Multiplicity and pseudorapidity distributions of charged particles and photons at forward pseudorapidity in Au plus Au collisons at root s(NN)=62.4 GeV 

    E-Print Network [OSTI]

    Adams, J.; Aggarwal, MM; Ahammed, Z.; Amonett, J.; Anderson, BD; Arkhipkin, D.; Averichev, GS; Badyal, SK; Bai, Y.; Balewski, J.; Barannikova, O.; Barnby, LS; Baudot, J.; Bekele, S.; Belaga, VV; Bellingeri-Laurikainen, A.; Bellwied, R.; Berger, J.; Bezverkhny, BI; Bharadwaj, S.; Bhasin, A.; Bhati, AK; Bichsel, H.; Bielcik, J.; Bielcikova, J.; Billmeier, A.; Bland, LC; Blyth, CO; Blyth, SL; Bonner, BE; Botje, M.; Boucham, A.; Bouchet, J.; Brandin, AV; Bravar, A.; Bystersky, M.; Cadman, RV; Cai, XZ; Caines, H.; Sanchez, MCD; Castillo, J.; Catu, O.; Cebra, D.; Chajecki, Z.; Chaloupka, P.; Chattopadhyay, S.; Chen, HF; Chen, JH; Chen, Y.; Cheng, J.; Cherney, M.; Chikanian, A.; Choi, HA; Christie, W.; Coffin, JP; Cormier, TM; Cosentino, MR; Cramer, JG; Crawford, HJ; Das, D.; Das, S.; Daugherity, M.; de Moura, MM; Dedovich, TG; DePhillips, M.; Derevschikov, AA; Didenko, L.; Dietel, T.; Dogra, SM; Dong, WJ; Dong, X.; Draper, JE; Du, F.; Dunin, VB; Dunlop, JC; Majumdar, MRD; Eckardt, V.; Edwards, WR; Efimov, LG; Emelianov, V.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Fachini, P.; Faivre, J.; Fatemi, R.; Fedorisin, J.; Filimonov, K.; Filip, P.; Finch, E.; Fine, V.; Fisyak, Y.; Fornazier, KSF; Fu, J.; Gagliardi, Carl A.; Gaillard, L.; Gans, J.; Ganti, MS; Geurts, F.; Ghazikhanian, V.; Ghosh, P.; Gonzalez, JE; Gorbunov, YG; Gos, H.; Grachov, O.; Grebenyuk, O.; Grosnick, D.; Guertin, SM; Guo, Y.; Gupta, A.; Gupta, N.; Gutierrez, TD; Hallman, TJ; Hamed, A.; Hardtke, D.; Harris, JW; Heinz, M.; Henry, TW; Hepplemann, S.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffmann, GW; Horner, MJ; Huang, HZ; Huang, SL; Hughes, EW; Humanic, TJ; Igo, G.; Ishihara, A.; Jacobs, P.; Jacobs, WW; Jiang, H.; Jones, PG; Judd, EG; Kabana, S.; Kang, K.; Kaplan, M.; Keane, D.; Kechechyan, A.; Khodyrev, VY; Kim, BC; Kiryluk, J.; Kisiel, A.; Kislov, EM; Klay, J.; Klein, SR; Koetke, DD; Kollegger, T.; Kopytine, M.; Kotchenda, L.; Kowalik, KL; Kramer, M.; Kravtsov, P.; Kravtsov, VI; Krueger, K.; Kuhn, C.; Kulikov, AI; Kumar, A.; Kutuev, RK; Kuznetsov, AA; Lamont, MAC; Landgraf, JM; Lange, S.; Laue, F.; Lauret, J.; Lebedev, A.; Lednicky, R.; Lee, CH; Lehocka, S.; LeVine, MJ; Li, C.; Li, Q.; Li, Y.; Lin, G.; Lindenbaum, SJ; Lisa, MA; Liu, F.; Liu, H.; Liu, J.; Liu, L.; Liu, QJ; Liu, Z.; Ljubicic, T.; Llope, WJ; Long, H.; Longacre, RS; Lopez-Noriega, M.; Love, WA; Lu, Y.; Ludlam, T.; Lynn, D.; Ma, GL; Ma, JG; Ma, YG; Magestro, D.; Mahajan, S.; Mahapatra, DP; Majka, R.; Mangotra, LK; Manweiler, R.; Margetis, S.; Markert, C.; Martin, L.; Marx, JN; Matis, HS; Matulenko, YA; McClain, CJ; McShane, TS; Meissner, F.; Melnick, Y.; Meschanin, A.; Miller, ML; Minaev, NG; Mironov, C.; Mischke, A.; Mishra, DK; Mitchell, J.; Mohanty, B.; Molnar, L.; Moore, CF; Morozov, DA; Munhoz, MG; Nandi, BK; Nayak, SK; Nayak, TK; Nelson, JM; Netrakanti, PK; Nikitin, VA; Nogach, LV; Nurushev, SB; Odyniec, G.; Ogawa, A.; Okorokov, V.; Oldenburg, M.; Olson, D.; Pal, SK; Panebratsev, Y.; Panitkin, SY; Pavlinov, AI; Pawlak, T.; Peitzmann, T.; Perevoztchikov, V.; Perkins, C.; Peryt, W.; Petrov, VA; Phatak, SC; Picha, R.; Planinic, M.; Pluta, J.; Porile, N.; Porter, J.; Poskanzer, AM; Potekhin, M.; Potrebenikova, E.; Potukuchi, BVKS; Prindle, D.; Pruneau, C.; Putschke, J.; Rakness, G.; Raniwala, R.; Raniwala, S.; Ravel, O.; Ray, RL; Razin, SV; Reichhold, D.; Reid, JG; Reinnarth, J.; Renault, G.; Retiere, F.; Ridiger, A.; Ritter, HG; Roberts, JB; Rogachevskiy, OV; Romero, JL; Rose, A.; Roy, C.; Ruan, L.; Russcher, MJ; Sahoo, R.; Sakrejda, I.; Salur, S.; Sandweiss, J.; Sarsour, M.; Savin, I.; Sazhin, PS; Schambach, J.; Scharenberg, RP; Schmitz, N.; Schweda, K.; Seger, J.; Selyuzhenkov, I.; Seyboth, P.; Shahaliev, E.; Shao, M.; Shao, W.; Sharma, M.; Shen, WQ; Shestermanov, KE; Shimanskiy, SS; Sichtermann, E.; Simon, F.; Singaraju, RN; Smirnov, N.; Snellings, R.; Sood, G.; Sorensen, P.; Sowinski, J.; Speltz, J.; Spinka, H. M.; Srivastava, B.; Stadnik, A.; Stanislaus, TDS; Stock, R.; Stolpovsky, A.; Strikhanov, M.; Stringfellow, B.; Suaide, AAP; Sugarbaker, E.; Sumbera, M.; Surrow, B.; Swanger, M.; Symons, TJM; de Toledo, AS; Tai, A.; Takahashi, J.; Tang, AH; Tarnowsky, T.; Thein, D.; Thomas, JH; Timmins, AR; Timoshenko, S.; Tokarev, M.; Trainor, TA; Trentalange, S.; Tribble, Robert E.; Tsai, OD; Ulery, J.; Ullrich, T.; Underwood, DG; van Buren, G.; van der Kolk, N.; van Leeuwen, M.; Vander Molen, AM; Varma, R.; Vasilevski, IM; Vasiliev, AN; Vernet, R.; Vigdor, SE; Viyogi, YP; Vokal, S.; Voloshin, SA; Waggoner, WT; Wang, F.; Wang, G.; Wang, G.; Wang, XL; Wang, Y.; Wang, Y.; Wang, ZM; Ward, H.; Watson, JW; Webb, JC; Westfall, GD; Wetzler, A.; Whitten, C.; Wieman, H.; Wissink, SW; Witt, R.; Wood, J.; Wu, J.; Xu, N.; Xu, Z.; Xu, ZZ; Yamamoto, E.; Yepes, P.; Yoo, IK; Yurevich, VI; Zborovsky, I.; Zhang, H.; Zhang, WM; Zhang, Y.; Zhang, ZP; Zhong, C.

    2006-01-01

    gains for normalization and by studying the azimuthal dependence of the photon density of the detector in an ? window to be 13.5% for central and 15% for peripheral collisions. The total systematic error inN? is?17% for both central and peripheral... centrality classes inAu+Aucollisions at?sNN = 62.4GeV. Solid line is a straight line fit to the data points. have a characteristic shape with a steep rise that corresponds to the most peripheral events. The plateaus in the photon and charged particle...

  16. Study of Centrality Dependence of Kinetic Freeze-out Conditions in Pb + Pb Collisions at Root(sNN)= 2.76 TeV

    E-Print Network [OSTI]

    Saeed Uddin; Inam-ul Bashir; Riyaz Ahmed Bhat

    2014-11-18

    The transverse momentum spectra of identified particles at midrapidity in Pb + Pb collisions at Root(sNN) = 2.76 TeV have been studied as a function of collision centrality by using a unified statistical thermal freeze-out model. The calculated results are found to be in good agreement with the experimental data measured by the ALICE experiment at LHC. The model calculations provide the thermal freeze-out conditions in terms of the temperature and collective flow parameters for different particle species. We observe a rise in the thermal freeze-out temperature but a mild decrease in the collective flow velocity parameter from central to peripheral collisions. The model used incorporates the simultaneous effect of the longitudinal as well as transverse hydrodynamic flows. The baryon chemical potential is assumed to be zero ({\\mu}B ~ 0), a situation expected in the heavy ion collisions at LHC energies due to a high degree of nuclear transparency.

  17. The influence of bacterial and fungal isolates from the rhizosphere of Tamcot CAMD-E on host response to Phymatotrichum root rot of cotton 

    E-Print Network [OSTI]

    Lazo, Gerard Raymond

    1984-01-01

    with the water-only treatment had the highest incidence of disease, and also had the lowest seed cotton yield; but the RW-E+Fu-E treated plants had the lowest incidence of root rot and one of the lowest yields (Table 3). Trends apparent in this experiment... inoculation' 105 110 115 120 125 130 1 Control 2 T-E 3 SW-E 4 WA-E 5 RW-E 6 Fu-E 7 T-E+Fu-E 8 SW-E+Fu-E 9 WA-E+Fu-E 10 RW-E+Fu-E 'A total of 12 plants were inoculated for each treatment. The experiment had an average of 23 I incidence of dead...

  18. Transverse momentum and centrality dependence of dihadron correlations in Au plus Au collisions at root s(NN)=200 GeV: Jet quenching and the response of partonic matter 

    E-Print Network [OSTI]

    Adare, A.; Afanasiev, S.; Aidala, C.; Ajitanand, N. N.; Akiba, Y.; Al-Bataineh, H.; Alexander, J.; Al-Jamel, A.; Aoki, K.; Aphecetche, L.; Armendariz, R.; Aronson, S. H.; Asai, J.; Atomssa, E. T.; Averbeck, R.; Awes, T. C.; Azmoun, B.; Babintsev, V.; Baksay, G.; Baksay, L.; Baldisseri, A.; Barish, K. N.; Barnes, P. D.; Bassalleck, B.; Bathe, S.; Batsouli, S.; Baublis, V.; Bauer, F.; Bazilevsky, A.; Belikov, S.; Bennett, R.; Berdnikov, Y.; Bickley, A. A.; Bjorndal, M. T.; Boissevain, J. G.; Borel, H.; Boyle, K.; Brooks, M. L.; Brown, D. S.; Bucher, D.; Buesching, H.; Bumazhnov, V.; Bunce, G.; Burward-Hoy, J. M.; Butsyk, S.; Campbell, S.; Chai, J. -S; Chang, B. S.; Charvet, J. -L; Chernichenko, S.; Chiba, J.; Chi, C. Y.; Chiu, M.; Choi, I. J.; Chujo, T.; Chung, P.; Churyn, A.; Cianciolo, V.; Cleven, C. R.; Cobigo, Y.; Cole, B. A.; Comets, M. P.; Constantin, P.; Csanad, M.; Csoergo, T.; Dahms, T.; Das, K.; David, G.; Deaton, M. B.; Dehmelt, K.; Delagrange, H.; Denisov, A.; d'Enterria, D.; Deshpande, A.; Desmond, E. J.; Dietzsch, O.; Dion, A.; Donadelli, M.; Drachenberg, J. L.; Drapier, O.; Drees, A.; Dubey, A. K.; Durum, A.; Dzhordzhadze, V.; Efremenko, Y. V.; Egdemir, J.; Ellinghaus, F.; Emam, W. S.; Enokizono, A.; En'yo, H.; Espagnon, B.; Esumi, S.; Eyser, K. O.; Fields, D. E.; Finger, M.; Finger, M., Jr.; Fleuret, F.; Fokin, S. L.; Forestier, B.; Fraenkel, Z.; Frantz, J. E.; Franz, A.; Frawley, A. D.; Fujiwara, K.; Fukao, Y.; Fung, S. -Y; Fusayasu, T.; Gadrat, S.; Garishvili, I.; Gastineau, F.; Germain, M.; Glenn, A.; Gong, H.; Gonin, M.; Gosset, J.; Goto, Y.; de Cassagnac, R. Granier; Grau, N.; Greene, S. V.; Perdekamp, M. Grosse; Gunji, T.; Gustafsson, H. -A; Hachiya, T.; Hadj Henni, A.; Haegemann, C.; Haggerty, J. S.; Hagiwara, M. N.; Hamagaki, H.; Han, R.; Harada, H.; Hartouni, E. P.; Haruna, K.; Harvey, M.; Haslum, E.; Hasuko, K.; Hayano, R.; Heffner, M.; Hemmick, T. K.; Hester, T.; Heuser, J. M.; He, X.; Hiejima, H.; Hill, J. C.; Hobbs, R.; Hohlmann, M.; Holmes, M.; Holzmann, W.; Homma, K.; Hong, B.; Horaguchi, T.; Hornback, D.; Hur, M. G.; Ichihara, T.; Imai, K.; Inaba, M.; Inoue, Y.; Isenhower, D.; Isenhower, L.; Ishihara, M.; Isobe, T.; Issah, M.; Isupov, A.; Jacak, B. V.; Jia, J.; Jin, J.; Jinnouchi, O.; Johnson, B. M.; Joo, K. S.; Jouan, D.; Kajihara, F.; Kametani, S.; Kamihara, N.; Kamin, J.; Kaneta, M.; Kang, J. H.; Kanou, H.; Kawagishi, T.; Kawall, D.; Kazantsev, A. V.; Kelly, S.; Khanzadeev, A.; Kikuchi, J.; Kim, D. H.; Kim, D. J.; Kim, E.; Kim, Y. -S; Kinney, E.; Kiss, A.; Kistenev, E.; Kiyomichi, A.; Klay, J.; Klein-Boesing, C.; Kochenda, L.; Kochetkov, V.; Komkov, B.; Konno, M.; Kotchetkov, D.; Kozlov, A.; Kral, A.; Kravitz, A.; Kroon, P. J.; Kubart, J.; Kunde, G. J.; Kurihara, N.; Kurita, K.; Kweon, M. J.; Kwon, Y.; Kyle, G. S.; Lacey, R.; Lai, Y. -S; Lajoie, J. G.; Lebedev, A.; Le Bornec, Y.; Leckey, S.; Lee, D. M.; Lee, M. K.; Lee, T.; Leitch, M. J.; Leite, M. A. L.; Lenzi, B.; Lim, H.; Liska, T.; Litvinenko, A.; Liu, M. X.; Li, X.; Li, X. H.; Love, B.; Lynch, D.; Maguire, C. F.; Makdisi, Y. I.; Malakhov, A.; Malik, M. D.; Manko, V. I.; Mao, Y.; Masek, L.; Masui, H.; Matathias, F.; McCain, M. C.; McCumber, M.; McGaughey, P. L.; Miake, Y.; Mikes, P.; Miki, K.; Miller, T. E.; Milov, A.; Mioduszewski, Saskia; Mishra, G. C.; Mishra, M.; Mitchell, J. T.; Mitrovski, M.; Morreale, A.; Morrison, D. P.; Moss, J. M.; Moukhanova, T. V.; Mukhopadhyay, D.; Murata, J.; Nagamiya, S.; Nagata, Y.; Nagle, J. L.; Naglis, M.; Nakagawa, I.; Nakamiya, Y.; Nakamura, T.; Nakano, K.; Newby, J.; Nguyen, M.; Norman, B. E.; Nyanin, A. S.; Nystrand, J.; O'Brien, E.; Oda, S. X.; Ogilvie, C. A.; Ohnishi, H.; Ojha, I. D.; Okada, H.; Okada, K.; Oka, M.; Omiwade, O. O.; Oskarsson, A.; Otterlund, I.; Ouchida, M.; Ozawa, K.; Pak, R.; Pal, D.; Palounek, A. P. T.; Pantuev, V.; Papavassiliou, V.; Park, J.; Park, W. J.; Pate, S. F.; Pei, H.; Peng, J. -C; Pereira, H.; Peresedov, V.; Peressounko, D. Yu; Pinkenburg, C.; Pisani, R. P.; Purschke, M. L.; Purwar, A. K.; Qu, H.; Rak, J.; Rakotozafindrabe, A.; Ravinovich, I.; Read, K. F.; Rembeczki, S.; Reuter, M.; Reygers, K.; Riabov, V.; Riabov, Y.; Roche, G.; Romana, A.; Rosati, M.; Rosendahl, S. S. E.; Rosnet, P.; Rukoyatkin, P.; Rykov, V. L.; Ryu, S. S.; Sahlmueller, B.; Saito, N.; Sakaguchi, T.; Sakai, S.; Sakata, H.; Samsonov, V.; Sato, H. D.; Sato, S.; Sawada, S.; Seele, J.; Seidl, R.; Semenov, V.; Seto, R.; Sharma, D.; Shea, T. K.; Shein, I.; Shevel, A.; Shibata, T. -A; Shigaki, K.; Shimomura, M.; Shohjoh, T.; Shoji, K.; Sickles, A.; Silva, C. L.; Silvermyr, D.; Silvestre, C.; Sim, K. S.; Singh, C. P.; Singh, V.; Skutnik, S.; Slunecka, M.; Smith, W. C.; Soldatov, A.; Soltz, R. A.; Sondheim, W. E.; Sorensen, S. P.; Sourikova, I. V.; Staley, F.; Stankus, P. W.; Stenlund, E.; Stepanov, M.

    2008-01-01

    The results of midrapidity (0 < y < 0.8) neutral pion spectra over an extended transverse momentum range (1 < p(T) < 12 GeV/c) in root s(NN) = 200 GeV Au + Au collisions, measured by the STAR experiment, are presented. The ...

  19. Supplemental Figure 1. Root lengths of S. pinnata and S. albescens grown on vertically placed agar plates after 30 days of growth from germination. Plants treated without () Se (open bars) and with (+) 20 M SeO4

    E-Print Network [OSTI]

    Supplemental Figure 1. Root lengths of S. pinnata and S. albescens grown on vertically placed agar a student's t test are reported in paragraph 1 of results section. #12;Supplemental Figure 2. Total non;Supplemental Figure 3. Graphic depiction of the macroarray expression differences from Tables 1

  20. Genomics Encyclopedia of Bacteria and Archaea-Root Nodule Bacteria (GEBA-RNB): a resource for microsymbiont genomes (2013 DOE JGI Genomics of Energy and Environment 8th Annual User Meeting)

    SciTech Connect (OSTI)

    Reeve, Wayne [Murdoch University

    2013-03-01

    Wayne Reeve of Murdoch University on "Genomics Encyclopedia of Bacteria and Archaea-Root Nodule Bacteria (GEBA-RNB): a resource for microsymbiont genomes" at the 8th Annual Genomics of Energy & Environment Meeting on March 27, 2013 in Walnut Creek, Calif.