Manco Energy Ltd | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma,Information MHKMHK5Transport ProjectsIMichigan: EnergyManco Energy Ltd
Natural Contamination from the Mancos Shale | Department of Energy
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties -Department ofDepartmentNatural Contamination from the Mancos Shale
Facies architecture of the Upper Sego member of the Mancos Shale Formation, Book Cliffs, Utah
Robinson, Eric D.
2006-04-12
The Late Cretaceous upper Sego Member of the Mancos Shale exposed in the Book Cliffs of east-central Utah is a 30 m thick sandstone wedge that overlies the Anchor Mine Tongue of the Mancos Shale and underlies coastal plain deposits of the Neslen...
KV04: Baxter Mountain This route visits
Reiter, Clifford A.
11 KV04: Baxter Mountain General This route visits Baxter Mountain which is a short hike that has between Hurricane and Green Mountains. The hike is relatively short although there is a good elevation Description The trail begins on Rt9N directly across from Hurricane Mountain Road. From Keene Valley, go north
Direct Experimental Simulation of the Yang-Baxter Equation
Chao Zheng; Jun-lin Li; Si-yu Song; Gui Lu Long
2013-05-27
Introduced in the field of many-body statistical mechanics, Yang-Baxter equation has become an important tool in a variety fields of physics. In this work, we report the first direct experimental simulation of the Yang-Baxter equation using linear quantum optics. The equality between the two sides of the Yang-Baxter equation in two dimension has been demonstrated directly, and the spectral parameter transformation in the Yang-Baxter equation is explicitly confirmed.
New elliptic solutions of the Yang-Baxter equation
D. Chicherin; S. E. Derkachov; V. P. Spiridonov
2015-05-13
We consider finite-dimensional reductions of the most general known solution of the Yang-Baxter equation with a rank 1 symmetry algebra, which is described by an integral operator with an elliptic hypergeometric kernel. The reduced R-operators reproduce at their bottom the standard Baxter's R-matrix for the 8-vertex model and Sklyanin's L-operator. The general formula has a remarkably compact form and yields new elliptic solutions of the Yang-Baxter equation based on the finite-dimensional representations of the elliptic modular double. The same result is reproduced using the fusion formalism.
Astragalus humilimus Mancos milkvetch
,000-500,000 · Primary threats: oil and gas development, oil shale and nahcolite mining, ORV use, overgrazing, trampling
The Baxter Q Operator of Critical Dense Polymers
Alessandro Nigro
2009-09-07
We consider critical dense polymers ${\\cal L}_{1,2}$, corresponding to a logarithmic conformal field theory with central charge $c=-2$. An elegant decomposition of the Baxter $Q$ operator is obtained in terms of a finite number of lattice integrals of motion. All local, non local and dual non local involutive charges are introduced directly on the lattice and their continuum limit is found to agree with the expressions predicted by conformal field theory. A highly non trivial operator $\\Psi(\
2 15.10.2013 Van D. BaxterVolker Weinmann Hybrid heat pump system as chance for the
Oak Ridge National Laboratory
pumps Condensing gas and oil boilers DHW tanks Solar panels Under floor heating Installation equipment#12;2 15.10.2013 Van D. BaxterVolker Weinmann Hybrid heat pump system as chance for the renovation market Dipl.-Ing. Volker Weinmann ROTEX Heating Systems GmbH #12;3 15.10.2013 Van D. Baxter
Wednesday, February 18, 12:00 PM Baxter Lecture Hall Auditorium
Wednesday, February 18, 12:00 PM Baxter Lecture Hall Auditorium Chen-Huang Sustainable Energy in Stanford's Precourt Institute on Energy and Woods Institute on Environment. Richter discovered a new kind by the U.S. Atomic Energy Commission for which he was awarded the Nobel Prize in Physics (1976) and the E
$\\mathbb{Z}_3$ Parafermionic Chain Emerged From Yang-Baxter Equation
Li-Wei Yu; Mo-Lin Ge
2015-11-07
We construct the 1D $\\mathbb{Z}_3$ parafermionic model based on the solution of Yang-Baxter equation and express the model by three types of fermions. It is shown that the $\\mathbb{Z}_3$ parafermionic chain possesses both triple degenerate ground states and non-trivial topological winding number. Hence, the $\\mathbb{Z}_3$ parafermionic model is a direct generalization of 1D $\\mathbb{Z}_2$ Kitaev model. Hence both the $\\mathbb{Z}_2$ and $\\mathbb{Z}_3$ model can be obtained from Yang-Baxter equation. On the other hand, to show the algebra of parafermionic tripling intuitively, we define a new 3-body Hamiltonian $\\hat{H}_{123}$ based on Yang-Baxter equation. Different from the Majorana doubling, the $\\hat{H}_{123}$ holds triple degeneracy at each of energy levels. The triple degeneracy is protected by two symmetry operators of the system, $\\omega$-parity $P$($\\omega=e^{{\\textrm{i}\\frac{2\\pi}{3}}}$) and emergent parafermionic operator $\\Gamma$, which are the generalization of parity $P_{M}$ and emergent Majorana operator in Lee-Wilczek model, respectively. Both the $\\mathbb{Z}_3$ parafermionic model and $\\hat{H}_{123}$ can be viewed as SU(3) models in color space. In comparison with the Majorana models for SU(2), it turns out that the SU(3) models are truly the generalization of Majorana models resultant from Yang-Baxter equation.
Fusion procedure for the Yang-Baxter equation and Schur-Weyl duality
L. Poulain d'Andecy
2013-07-25
We first review the fusion procedure for an arbitrary solution of the Yang-Baxter equation and the study of distinguished invariant subspaces for the fused solutions. Then we apply these general results to four particular solutions: the Yang solution, its standard deformation and their generalizations for super vector spaces. For the Yang solution, respectively, its "super" generalization, we explain how, using the fusion formula for the symmetric group together with the (super) Schur-Weyl duality, the fusion procedure allows to construct a family of fused solutions of the Yang-Baxter equation acting on irreducible representations of the general linear Lie algebra, respectively, of the general linear Lie superalgebra. For the deformations of the two previous solutions, we use the fusion formula for the Hecke algebra together with the (super) quantum Schur--Weyl duality to obtain fused solutions acting on irreducible representations of the quantum groups associated to the general linear Lie (super)algebras.
IMPaSTo: A Realistic, Interactive Model for Paint William Baxter, Jeremy Wendt, and Ming C. Lin
North Carolina at Chapel Hill, University of
IMPaSTo: A Realistic, Interactive Model for Paint William Baxter, Jeremy Wendt, and Ming C. Lin,jwendt,lin}@cs.unc.edu http://gamma.cs.unc.edu/IMPaSTo/ Abstract We present a paint model for use in interactive painting a numerical simulation to recreate the physical flow of paint and an optical model to mimic the paint
Entanglement Entropy from Corner Transfer Matrix in Forrester Baxter non-unitary RSOS models
Bianchini, Davide
2015-01-01
Using a Corner Transfer Matrix approach, we compute the bipartite entanglement R\\'enyi entropy in the off-critical perturbations of non-unitary conformal minimal models realised by lattice spin chains Hamiltonians related to the Forrester Baxter RSOS models in regime III. This allows to show on a set of explicit examples that the R\\'enyi entropies for non-unitary theories rescale near criticality as the logarithm of the correlation length with a coefficient proportional to the effective central charge. This complements a similar result, recently established for the size rescaling at the critical point, showing the expected agreement of the two behaviours. We also compute the first subleading unusual correction to the scaling behaviour, showing that it is expressible in terms of expansions of various fractional powers of the correlation length, related to the differences $\\Delta-\\Delta_{\\min}$ between the conformal dimensions of fields in the theory and the minimal conformal dimension. Finally, a few observati...
A non-symmetric Yang-Baxter algebra for the quantum nonlinear Schrödinger model (PhD Thesis)
Bart Vlaar
2013-03-26
We study certain non-symmetric wavefunctions associated to the quantum nonlinear Schr\\"odinger (QNLS) model, introduced by Komori and Hikami using representations of the degenerate affine Hecke algebra. In particular, they can be generated using a vertex operator formalism analogous to the recursion that defines the symmetric QNLS wavefunction in the quantum inverse scattering method. Furthermore, some of the commutation relations encoded in the Yang-Baxter equation are generalized to the non-symmetric case.
A. Chakrabarti
2003-05-07
Braid matrices $\\hat{R}(\\theta)$, corresponding to vector representations, are spectrally decomposed obtaining a ratio $f_{i}(\\theta)/f_{i}(-\\theta)$ for the coefficient of each projector $P_{i}$ appearing in the decomposition. This directly yields a factorization $(F(-\\theta))^{-1}F(\\theta)$ for the braid matrix, implying also the relation $\\hat{R}(-\\theta)\\hat{R}(\\theta)=I$.This is achieved for $GL_{q}(n),SO_{q}(2n+1),SO_{q}(2n),Sp_{q}(2n)$ for all $n$ and also for various other interesting cases including the 8-vertex matrix.We explain how the limits $\\theta \\to \\pm \\infty$ can be interpreted to provide factorizations of the standard (non-Baxterized) braid matrices. A systematic approach to diagonalization of projectors and hence of braid matrices is presented with explicit constructions for $GL_{q}(2),GL_{q}(3),SO_{q}(3),SO_{q}(4),Sp_{q}(4)$ and various other cases such as the 8-vertex one. For a specific nested sequence of projectors diagonalization is obtained for all dimensions. In each factor $F(\\theta)$ our diagonalization again factors out all dependence on the spectral parameter $\\theta$ as a diagonal matrix. The canonical property implemented in the diagonalizers is mutual orthogonality of the rows. Applications of our formalism to the construction of $L-$operators and transfer matrices are indicated. In an Appendix our type of factorization is compared to another one proposed by other authors.
William J. Scheick
2005-01-01
-CENTURY NEWS John Eliot. The Eliot Tracts: With Letters from John Eliot to Thomas Thorowgood and Richard Baxter. Edited by Michael Clark. Westport, Conn.: Praeger Publishers, 2003. viii + 453 pp. $99.95. Review by WILLIAM J. SCHEICK, UNIVERSITY OF TEXAS... in a reverse migration from New England to their now spiritually liberated homeland. By 1651, even influential John Davenport was ready to leave New England for England, though by mid-decade he clearly saw the error of his over-estimation of Cromwell?s...
Factorized three-body S-matrix restrained by the Yang–Baxter equation and quantum entanglements
Yu, Li-Wei; Zhao, Qing; Ge, Mo-Lin
2014-09-15
This paper investigates the physical effects of the Yang–Baxter equation (YBE) to quantum entanglements through the 3-body S-matrix in entangling parameter space. The explicit form of 3-body S-matrix ?{sub 123}(?,?) based on the 2-body S-matrices is given due to the factorization condition of YBE. The corresponding chain Hamiltonian has been obtained and diagonalized, also the Berry phase for 3-body system is given. It turns out that by choosing different spectral parameters the ?(?,?)-matrix gives GHZ and W states respectively. The extended 1-D Kitaev toy model has been derived. Examples of the role of the model in entanglement transfer are discussed. - Highlights: • We give the relation between 3-body S-matrix and 3-qubit entanglement. • The relation between 3-qubit and 2-qubit entanglements is investigated via YBE. • 1D Kitaev toy model is derived by the Type-II solution of YBE. • The condition of YBE kills the “Zero boundary mode” in our chain model.
Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site
Efficiency | Sustain Results ISO 50001SEP Superior Energy Performance at Schneider Electric Schneider Electric - Sustainability Services - 2014 2 Schneider Electric - the...
Liu, TL; Chen, Z; Chen, Z; Kim, CJ
2015-01-01
s equation 27 : ? SV = ? SL + ? cos ? Y where ? SV and ? SLas, ? SV + f R = ? SL + ? cos ? R where ? R ? R is the localEqs. 1 and 2 as: f R ? = cos ? R ? cos ? Y ? Y ? SV Receding
Office of Scientific and Technical Information (OSTI)
a working fluid in industrial and large-scale refrigeration, ammonia provides high efficiency, low initial cost, and no detrimental impact to the environment. However, its...
Liu, TL; Chen, Z; Chen, Z; Kim, CJ
2015-01-01
Matsushita, “Sliding of Water Droplets on Smooth Hydrophobicrepellent (superhydrophobic for water) property. The Cassie-alignment, the elongated water droplet attached to the top
Liu, TL; Chen, Z; Chen, Z; Kim, CJ
2015-01-01
TCL, which creates a surface energy barrier against the TCLto obtain the same result from thermodynamic energy balanceif the energy stored in a curved meniscus (i.e. , local
Baxter, Minnesota: Energy Resources | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION J APPENDIX E LISTStar Energy LLC Jump to:Greece:Bajo en Carbono, MexicoBanhamOilBattic Door
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Workplace Charging Challenge Partner: Baxter International Inc. |
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 Â» USAJobs SearchAMERICA'SEnergy Safely Tear DownEnergy|Energy
Robert W. SchoDlng Joh n L. Baxter
vegetables, and the continued strength in prices of fish, fats, and oil products. Consumer expenditures matters. #12;u.s. FOOD SITUATION Prices for food to be consumed at home in 1971 probably will average around 3% above 1970. In 1970, the increase was 5.1%. The price uptrend in away-from -home eating
Stochastic models of fish larval growth Paul D. Baxter,
Baxter, Paul D.
metabolic costs, " is the maximal rate (capped rate) at which the individual can grow. " It makes¨ive stochastic generalisation (2) " Consider a random trajectory, as shown below. " Compare the gradient defined by ¢ DE §! FG E § H I £ §! with the gradient of §! over a time interval §! . " Solution is dependent
Posted 6.1.12 Job details -Baxter
Heller, Barbara
processes & controls, ERP systems such as JD Edwards and Lean Six Sigma. 4) PMP, Six Sigma belt or APICS
ALGORITHMS FOR PERMUTATION STATISTICS BY ANDREW MICHAEL BAXTER
Zeilberger, Doron
and original works by these three readers. iii #12;Dedication This work is dedicated to my wife, Kristen. I Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii Dedication
Baxter County, Arkansas: Energy Resources | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QA J-E-1 SECTION JEnvironmental Jump to:EAandAmminexInformationArkansas: Energy Resources Jump to: navigation,
Keller, Allison Lynn
2015-01-01
of the Mancos Shale, Lincoln County, New Mexico. New MexicoShale (Upper Cretaceous), Mesa Verde, Colorado. New Mexico
BEM 105 "OPTIONS" Instructor: Jaksa Cvitanic; 319 Baxter, 395-1784, cvitanic@hss.caltech.edu
Low, Steven H.
- but please report them; no col- laboration allowed on the final exam. Homeworks and final are open-book, open probabilities (a.k.a. Equiva- lent Martingale Measure or risk-neutral probabilities): binomial model (3.1, 3.3, 7.4, 7.5) 13. & 14. Stochastic volatility (7.2.4, 7.6.3, 7.6.4, 7.8) 15. Portfolio risk; Hedging (5
Studies of Paleozoic Seed Ferns: Additional Studies of Microspermopteris aphyllum Baxter
Pigg, K. B.; Stockey, Ruth A.; Taylor, Thomas N.
1986-03-01
that bear two-, three-, or four-lobed ultimate laminar pinnules. Pinnules reconstructed from serial sections are morphologically similar to Sphenopteris-like compressions; however, the overall frond is reduced in size and complexity. While some axillary...
Szpankowski, Wojciech
overlapping of the clusters which may explain the limited success of previous protein folding prediction based of protein folding classes based on primary sequence information remains a difficult task (1- 9 dimensions. Several attempts have been made to use AAC information to predict protein folding classes (7
Baxter Creek Gateway Park: assessment of an urban stream restoration project
Goodman, Judd; Lunde, Kevin B; Zaro, Theresa
2006-01-01
restoration project Flow (cfs) Q 10 Q 100 * Leventhal, 2006Facie (dynes/cm)* stress (cfs) (mm) Embedded (ft ) (yrs)** #intervals is 90.5 and 130.5 cfs, respectively (Leventhal,
Nanoscale design to enable the revolution in renewable energy Jason Baxter,a
on the environment and have limited economic and societal disruption during implementation. In this opinion paper, we-fold perspective: analyzing the fundamental physicochemical principles and engineering aspects of these energy themes in basic energy science that cut across the entire spectrum a Drexel University, Department
Tracking Quantity Fluctuations using STT Robert C. Kahlert, Ben Rode, David Baxter,
Forbus, Kenneth D.
: A disaster affects critical refinement capabilities for crude oil, decreasing the supply of gasoline, which of oil price fluctuations are an example of such events, and are tracked in the STT (Situation Tracking- mation to be extracted. Our primary example domain will be quantity changes related to oil price
Baxter County, Arkansas ASHRAE 169-2006 Climate Zone | Open Energy
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Not Available
1994-01-01
The film shows the basic structure of diesel systems, including the parts and operation of injectors and fuel pumps. It discusses Bosch, General Motors, and Excello Equipment. This title has been declared obsolete for use within the sponsoring agency, but may have content value for educational use.
NONE
1994-12-31
The film shows the basic structure of diesel systems, including the parts and operation of injectors and fuel pumps. It discusses Bosch, General Motors, and Excello Equipment. This title has been declared obsolete for use within the sponsoring agency, but may have content value for educational use.
Kirschner, Denise
to alternative fuel by refining our biodiesel fuel to Ultra Low Sulfur B20 biodiesel meeting 2009 diesel fuel
MEXUS-Gulf Shrimp Research, 1978-84 EDWARD F. KLIMA, REFUGIO GMO. CASTRO MELENDEZ, NEAL BAXTER,
, FRANK J. PATELLA, TERRY J. CODY, and LOREnA F. SULLIVAN Introduction Mexico and the United States share shrimp and other marine resources in the Gulf of Mexico. As a result, in 1fJ77 a cooperative research shrimp production in the Gulf of Mexico in 1fJ77 was about 148,000 metric tons (t), heads on, whereas
Embryonic and Larval Development of Sacramento Splittail Pogonichthys macrolepidotus
Deng, Xin; Teh, Swee J.; Doroshov, Serge I.; Hung, Silas S. O.
2012-01-01
p. Moyle PB, Baxter RD, Sommer T, Foin TC, Mater SA. 2004.66:797–816. Feyrer F, Sommer TR, Baxter R. 2005. Spatial-KS): Allen Press. p 11–22. Sommer T, Baxter R, Herbold B.
Rock-Fluid Chemistry Impacts on Shale Hydraulic Fracture and Microfracture Growth
Aderibigbe, Aderonke
2012-07-16
The role of surface chemical effects in hydraulic fracturing of shale is studied using the results of unconfined compression tests and Brazilian tests on Mancos shale- cored at depths of 20-60 ft. The rock mineralogy, total ...
Digne, FranÃ§ois
Motivation Set-theoretic solutions Strategy 1 to determine set-theoretic solutions and Problems (Baie de Somme) May 30th Â june 2nd 2012 Eric Jespers #12;Motivation Set-theoretic solutions Strategy 1 to determine set-theoretic solutions and Problems Lecture Outline Motivation #12;Motivation Set
Gillingham, Michael
, University of Northern British Columbia, Prince George, BC, Canada Introduction Many prey organisms Columbia, 3333 University Way, Prince George, BC, V2N 4Z9 Canada. E-mail: psyllakj@unbc.ca Received
Sustainable Development & Land Use Committee Meeting Meeting 2009-2010 #1
2009 Present: Hugh Scott (Chair); Esther Barnett; Keith Baxter; Michel Caron; Mary Ellen Donnan; Kyle Barnett Seconded by: Keith Baxter 1.3 Business Arising: None. 1.4 SDAG Report Erika Ide Erika spoke
Hobbs, James A.; Lewis, Levi S.; Ikemiyagi, Naoaki; Sommer, Ted; Baxter, Randall D.
2010-01-01
Naoaki Ikemiyagi & Ted Sommer & Randall D. Baxter Received:mail: jahobbs@ucdavis.edu T. Sommer California Department ofAct 1 (Baxter et al. 2007; Sommer et al. 2007; California
Schroeter, Robert E.
2008-01-01
J. Mar. Sci. 57:641-648. Sommer, T. , C. Armor, R. Baxter,Biol. Bull. 156: 356- Sommer, T. , C. Armor, R. Baxter, R.Mills, C.E. and F. Sommer. 1995. Invertebrate introductions
Feyrer, Frederick; Sommer, Ted; Slater, Steven B.
2009-01-01
K, Baxter R, Hymanson Z, Sommer T, Gingras?M, Cadrett P.68:51-59. Feyrer F, Nobriga M, Sommer T. 2007. Multi-decadalEcology & Evolution 17:170-176 Sommer T, Armor C, Baxter R,
CX-004194: Categorical Exclusion Determination
Broader source: Energy.gov [DOE]
Cretaceous Mancos Shale Uinta Basin, Utah: Resource Potential and Best Practices For an Emerging ShaleCX(s) Applied: A9, B3.1Date: 09/27/2010Location(s): Price, UtahOffice(s): Fossil Energy, National Energy Technology Laboratory
Potential Effects of a Forest Management Plan on Bachman's Sparrows (Aimophila aestivalis): Linking
Departamento de Energia de los Estados Unido& en Carolina del Sur La estrategia utilizada combtn6 un modelo de mango para varias especie& debtdo a requerimientos legales la mayoria de las estrategias de manejo de ninguna estrategia especifica de manc~o, pero que comparte algunos de los requerimientos de
IMPROVING THE PERSISTENCE OF FIRST-YEAR UNDERGRADUATE WOMEN IN COMPUTER SCIENCE
Plotkin, Joshua B.
IMPROVING THE PERSISTENCE OF FIRST-YEAR UNDERGRADUATE WOMEN IN COMPUTER SCIENCE Rita Manco Powell@cis.upenn.edu Abstract This paper describes a study of undergraduate women's retention in the first-year of the computer Gender Issues, Persistence, Attrition, Curriculum 1. Introduction Enrollment in computer science programs
7803/7804 -Project Review Meeting Schedule Supervisor Client Students
Peters, Dennis
, Sean Jessome, Matthew Baxter Thursday, July 30 4:00pm-4:30pm Popsicle Bridge Test Frame Dennis Peters
B O N N E V I L L E P O W E R A D M I N I S T R A T I O N
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
alternative includes the Casey Road substation site. As compared to the Baxter Road substation site, the Casey Road substation site avoids significant steep, rocky terrain,...
A deformation of quantum affine algebra in squashedWess-Zumino...
Office of Scientific and Technical Information (OSTI)
by computing the rs-matrices that satisfy the extended classical Yang-Baxter equation. Finally, two degenerate limits are discussed. Authors: Kawaguchi, Io ; Yoshida,...
Methods of Photoelectrode Characterization with High Spatial...
Office of Scientific and Technical Information (OSTI)
and Temporal Resolution Authors: Esposito, Daniel V ; Baxter, Jason B ; John, Jimmy ; Lewis, Nathan S. ; Moffat, Thomas P ; Ogitsu, Tadashi ; O'Neil, Glen D ; Pham, T. D. ;...
Undergraduate Mathematics Award and Scholarship winners ...
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... Memorial Award in Analysis: Bennett Marsh; Glen E. Baxter Memorial Award: ... Patrick Lewis, Mikaela Meyer, Kristen Mori, Andres Urrego, Tatiana Utreras, ...
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New South Wales, University of
Cracknell Pavilion New College Village Squarehouse Parade Theatre NIDA Law Building International House Chemical Sciences Science Theatre Australian School of Business Baxter College Dalton Building Quadrangle
Mango, Florida: Energy Resources | Open Energy Information
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Natural Gas Exports by Pipeline out of the U.S. Form | Department of Energy
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties -Department ofDepartmentNatural Contamination from the Mancos
Natural Gas Fuel Basics | Department of Energy
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on DeliciousMathematicsEnergyInterested Parties -Department ofDepartmentNatural Contamination from the MancosNatural
Frantz, Kyle J.
Daven C. Anderson Laura M. Anderson Matthew S. Andler Ivy M. Andrews Caitlin A. Andrews Nirvana M. Battles Kamisha L. Baxter Sabina Beglyarova Darlene E. Belen Ashley N. Bell Cristel R. Bender Brendan L
A study of static and dynamic robustness of hydro/omniphobic surfaces
Park, Kyoo Chul
2010-01-01
Liquid droplets in the Cassie-Baxter state form liquid-air interfaces that are not flat but distorted due to pressure differences across the interfaces between the asperities. These distorted interfaces play an essential ...
Microsoft Word - Cohen-Goniometer bh
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on XPP until the MFX station is fully operational in 2016. Primary Citation A. E. Cohen, S. M. Soltis, A. Gonzlez, L. Aguila, R. Alonso-Mori, C. O. Barnes, E. L. Baxter, W....
Journal of Data Science 6(2008), 135-154 A Statistical Approach for Dating Archaeological Contexts
Paris-Sud XI, Université de
2008-01-01
sets), but also as a help to answer cer- tain archaeological and historical questions. The data set of contexts, but never on the scale of a whole town ((Djindjian, 1991); (Tyers and Orton, 1991); (Baxter, 1994
Sustainable Development & Land Use Committee Meeting Meeting 2008-2009 #4
2009 Present: Stephen Lloyd (Chair); Esther Barnett; Keith Baxter; Michel Caron; Astrid Grawehr.2 Minutes: Minutes of the meeting of 21 November 2008 were approved (Esther Barnett/David Jones) 4
Pushing Boundaries on Performance & Design: the ClimateMaster...
Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)
Pump - Part II September 01, 2013 The ORNL R&D 100 award winning team: Van Baxter, Ed Vineyard, Jeff Munk, Anthony Gehl, Moonis Ally, Keith Rice, and Bo Shen picture with the...
Main Heading Caption describing picture or graphic.
and make it easier to read. R P Documentary Film 11 AM Saturday November 8, 2014 Philippine Cultural Center 4857 Baxter Rd, Virginia Beach, VA 23462 "Rescue in The Philippines" is a onehour documentary
September 2013 Most Viewed Documents for Environmental Sciences...
Office of Scientific and Technical Information (OSTI)
Soil Friday, G. P. (1999) 31 > Ammonia usage in vapor compression for refrigeration and air-conditioning in the United States Fairchild, P.D.; Baxter, V.D. (1995) 30 >...
A Conceptual Model for Floodplains in the Sacramento-San Joaquin Delta
Opperman, Jeffrey J.
2012-01-01
Biology Moyle PB, Baxter RD, Sommer TR, Foin TC, Matern SA.Society. p 83–138. Feyrer F, Sommer T, Harrell W. 2006a.2):115–126. Feyrer F, Sommer T, Harrell W. 2006b. Managing
Three-dimensional Modeling of Tidal Hydrodynamics in the San Francisco Estuary
Gross, Edward S.; MacWilliams, Michael L.; Kimmerer, Wim J.
2009-01-01
Series Feyrer F, Nobriga ML, Sommer TR. 2007. Multi- decadalScience B.V. p 343-357. Sommer T, Armor C, Baxter R, Breuerrelationships have changed (Sommer and others 2007). The
2013-01-01
Region. 844 p + appendices. Sommer TR, Nobriga ML, HarrellAquatic Sciences 58:325-333. Sommer T, Harrell W, Nobriga M.Management 26:685-701. Sommer T, Armor C, Baxter R, Breuer
Benthic Assemblage Variability in the Upper San Francisco Estuary: A 27-Year Retrospective
Peterson, Heather A; Vayssieres, Marc
2010-01-01
Special thanks go to Ted Sommer for his support of thisFishes Feyrer F, Nobriga ML, Sommer TR. 2007. Multi- decadalEstuaries 20(3):504–520. Sommer T, Armor C, Baxter R, Breuer
Brown, Larry R.; May, Jason T.
2006-01-01
66:123–132. Feyrer F, Sommer TR, Baxter RD. 2005. Spatial-39, Bethesda, Maryland. p Sommer T, Harrell WC, Kurth R,Bethesda, Maryland. p 141–166. Sommer T, Harrell B, Nobriga
Habitat Variability and Complexity in the Upper San Francisco Estuary
Moyle, Peter B; Lund, Jay R.; Bennett, William A; Fleenor, William E.
2010-01-01
uc/item/0d52737t. Grimaldo LF, Sommer T, Van Ark N, Joes G,Science Moyle PB, Baxter RD, Sommer T, Foin TC, Matern SA.University Press. p 141-170. Sommer TR, Nobriga ML, Harrell
Feyrer, Frederick; Hobbs, James; Sommer, Ted
2010-01-01
F, Hobbs JA, Baerwald M, Sommer T, YinQ, Clark K, May BP,Fisheries Society Feyrer F, Sommer TR, Baxter R. 2005.2005:159–168. Feyrer F, Sommer T, Harrell W. 2006. Managing
2012-01-01
266:753-762. Grimaldo LF, Sommer T, Van Ark N, Jones G,614-622. Feyrer F, Nobriga ML, Sommer TR. 2007. MultidecadalConservation Biology 4:275-284. Sommer T, Armor C, Baxter R,
Jassby, Alan
2008-01-01
Sciences 99(12):8101–8105. Sommer T, Harrell B, Nobriga M,Fisheries 26(8):6–16. Sommer T, Suits B, Mierzwa M, Wilde J.deltamodeling/models/ptm/ptm.cfm Sommer T, Armor C, Baxter
Patterns in the Use of a Restored California Floodplain by Native and Alien Fishes
Moyle, Peter B; Crain, Patrick K; Whitener, Keith
2007-01-01
of a natural floodplain (Sommer et al.2001a, The purpose ofNetherlands. Feyrer, F, Sommer, TR, Zeug, SC, O’Leary,G,Aquatic Sciences 60:773-786. Sommer, TR, Baxter, R, Herbold,
Ottino, Julio M.
management, and M&A Represented companies include: Ball Corporation Baxter International Inc. Biomet, Inc Investments, Inc. MillerCoors LLC Sara Lee Corporation Sonic Corp. SP Plus Corporation Tampa Bay Lightning
Ottino, Julio M.
management, and M&A Represented companies include: Ball Corporation Baxter International Inc. Biomet, Inc Investments, Inc. MillerCoors LLC Sara Lee Corporation Sonic Corp. SP Plus Corporation Tampa Bay Lightning
Millions on the Margins: Music, Ethnicity, and Censorship Among the Oromo of Ethiopia
Mollenhauer, Shawn Michael
2011-01-01
37 The “African-ness” of Ethiopia……………………………………………………….47of the essential one-ness of Oromo culture (Baxter, Hultin &on or assumption of Oromo same-ness. While admitting the
Mandarin Global Carbon Ltd | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma,Information MHKMHK5Transport ProjectsIMichigan: EnergyManco Energy
Mangalam Bio Energen Private Limited | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma,Information MHKMHK5Transport ProjectsIMichigan: EnergyManco EnergyBio
Mangonia Park, Florida: Energy Resources | Open Energy Information
AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on QA:QAsource History View NewTexas:Montezuma,Information MHKMHK5Transport ProjectsIMichigan: EnergyMancoMangonia
TerraTek
2007-06-30
A deep drilling research program titled 'An Industry/DOE Program to Develop and Benchmark Advanced Diamond Product Drill Bits and HP/HT Drilling Fluids to Significantly Improve Rates of Penetration' was conducted at TerraTek's Drilling and Completions Laboratory. Drilling tests were run to simulate deep drilling by using high bore pressures and high confining and overburden stresses. The purpose of this testing was to gain insight into practices that would improve rates of penetration and mechanical specific energy while drilling under high pressure conditions. Thirty-seven test series were run utilizing a variety of drilling parameters which allowed analysis of the performance of drill bits and drilling fluids. Five different drill bit types or styles were tested: four-bladed polycrystalline diamond compact (PDC), 7-bladed PDC in regular and long profile, roller-cone, and impregnated. There were three different rock types used to simulate deep formations: Mancos shale, Carthage marble, and Crab Orchard sandstone. The testing also analyzed various drilling fluids and the extent to which they improved drilling. The PDC drill bits provided the best performance overall. The impregnated and tungsten carbide insert roller-cone drill bits performed poorly under the conditions chosen. The cesium formate drilling fluid outperformed all other drilling muds when drilling in the Carthage marble and Mancos shale with PDC drill bits. The oil base drilling fluid with manganese tetroxide weighting material provided the best performance when drilling the Crab Orchard sandstone.
Integrability vs exact solvability in the quantum Rabi and Dicke models
Murray T. Batchelor; Huan-Qiang Zhou
2015-01-05
The Rabi model describes the simplest interaction between light and matter via a two-level quantum system interacting with a bosonic field. We demonstrate that the fully quantised version of the Rabi model is integrable in the Yang-Baxter sense at two parameter values. The model is argued to be not Yang-Baxter integrable in general. This is in contrast to the claim that the quantum Rabi model is integrable based on a phenomenological criterion of quantum integrability not presupposing the existence of a set of commuting operators. Similar Yang-Baxter integrable points are identified for the generalised Rabi model and the fully quantised Dicke model. The integrable points have particular implications for the level statistics of the Dicke model.
The effect of high-pressure injection of gas on the reservoir volume factor of a crude oil
Honeycutt, Baxter Bewitt
1957-01-01
THE EFFECT OF HIGH-PRESSURE INJECTION OF GAS ON THE RESERVOIR VOLUME FACTOR OF A CRUDE OIL A Thesis By+ BAXTER DS'kONEYCUTT o Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment... of the requirements for the degree of MASTER OF SCIENCE August, i957 Major Subject: Petroleum Engineering THE EFFECT OF HIGH-PRESSURE INJECTION OF GAS ON THE RESERVOIR VOLUME FACTOR OF A CRUDE OIL A Thesis By BAXTER D. HONEYCUTT Appro d as to style...
Moore, William
2015-07-30
Investigator, and Edward P. Baxter was the Project Archaeologist. No new sites were found as a result of this investigation. Six previously recorded sites are within or near the Area of Potential Effect (APE), and shovel tests were excavated in the APE...
), efficient use of storage (Barlow, 1961; Miller, 1956) or energy resources (Levy and Baxter, 1996, 2002-induced redundancy in the neural responses to a set of natural sounds in three successive stations of the auditory substantially more redundant than A1 and MGB neurons. IC redundancy was largely related to frequency selectivity
Moore, William; Baxter, William
2015-07-28
the Principal Investigator and Edward P. Baxter the Project Archaeologist. In all, 8.2 acres were examined. No archaeological sites (prehistoric or historic) were found, and no artifacts were collected. It is recommended that the project be allowed to proceed...
Approved Module Information for LE3025, 2014/5 Module Title/Name: Leadership & Management
Neirotti, Juan Pablo
. Students will continue to learn how to: select and use data and information from primary sources (eApproved Module Information for LE3025, 2014/5 Module Title/Name: Leadership & Management Module? Not Specified Module Credits: 20 Module Management Information Module Leader Name Judith Baxter
Approved Module Information for LE3024, 2014/5 Module Title/Name: Leadership & Management
Neirotti, Juan Pablo
will learn how to: select and use data and information from primary sources (e.g. authentic dataApproved Module Information for LE3024, 2014/5 Module Title/Name: Leadership & Management Module? Not Specified Module Credits: 20 Module Management Information Module Leader Name Judith Baxter
Chang Q. Sun
2015-02-26
Molecular undercoordination induced O:H-O bond relaxation and dual polarization dictates the supersolid behavior of water skins interacting with other substances such as flowing in nanochannels, dancing of water droplets, floating of insects. The BOLS-NEP notion unifies the Wenzel-Cassie-Baxter models and explains controllable transition between hydrophobicity and hydrophilicity.
January 15, 2013 FUNDAMENTALS OF NUCLEAR
Shultis, J. Kenneth
.3, first equation (Bailey) eV/s eV s p. 27 5th line Sec. 2.2.2 (Baxter) ...a decrease... ...an increase s + m2 n) p. 191, Example 7.5 (Bellinger) 54 Mn, 55 Mn, 54 and N55 55 Mn, 56 Mn, 55 and N56 , respec. p
January 15, 2013 FUNDAMENTALS OF NUCLEAR
Shultis, J. Kenneth
.3, first equation (Bailey) eV/s eV s p. 27 5th line Sec. 2.2.2 (Baxter) ...a decrease... ...an increase, Example 7.5 (Bellinger) 54 Mn, 55 Mn, # 54 and N 55 55 Mn, 56 Mn, # 55 and N 56 , respec. p. 203, top
Integrable double deformation of the principal chiral model
Francois Delduc; Marc Magro; Benoit Vicedo
2014-10-29
We define a two-parameter family of integrable deformations of the principal chiral model on an arbitrary compact group. The Yang-Baxter sigma-model and the principal chiral model with a Wess-Zumino term both correspond to limits in which one of the two parameters vanishes.
Updated 3/19/2009 W.V.T. RUSCH ENGINEERING HONORS COLLOQUIUM
Zhou, Chongwu
Engineering Prof., UCSD, President, Viterbi Group 21 "The Methanol Economy," Prof. George Olah, Nobel LaureateUpdated 3/19/2009 W.V.T. RUSCH ENGINEERING HONORS COLLOQUIUM FALL 2008 SEMESTER OHE 122, 1:00pm 1 Manager, Jet Propulsion Laboratory 19 "Engineering Our Way to Better Medical Devices," Dr. Walt Baxter
RetrofitNYC Advancing Energy Efficiency in New York
Smerdon, Jason E.
) is a New York City (NYC) based, independent non- profit energy efficiency resource center and networkingRetrofitNYC Advancing Energy Efficiency in New York City Multifamily Buildings #12;#12;Foreword. Advancing Energy Efficiency in New York City Multifamily Buildings. By Tan, D., Baxter, M., Leung, E., Meyer
Movements of Brown Shrimp, Penaeus aztecus, and Pink Shrimp, P. duorarum, Relative to the
Movements of Brown Shrimp, Penaeus aztecus, and Pink Shrimp, P. duorarum, Relative to the U.S.-Mexico Border in the Western Gulf of Mexico PETER F. SHERIDAN, FRANK J. PATELLA, Jr., NEAL BAXTER, and DENNIS A of Mexico. Annual U.S. landings of brown shrimp off Texas averaged 13,800 metric tons (t) between 1970
Customer Service Specialist Job Number: 54844874
Heller, Barbara
Customer Service Specialist Job Number: 54844874 Company Name: Baxter International, Inc Job to the customer and/or the sales team including any corrective actions needed to prevent the failure in the future: Medical Information, Distribution Centers, Planning and Deployment, Credit and Collections, Customer
Catherine Barrera Director of Research Administration
Bustamante, Fabián E.
Catherine Barrera Director of Research Administration c-barrera@northwestern.edu Tech L365 Phone-lueptow@northwestern.edu Tech L254 Phone: 847.491.3553 Elizabeth Tang Assistant Director of Research Administration e Associate Research Administrator, McC Admin, Federal Stimulus Funding, Baxter-NU Alliance, IUSSTF, Center
Sustainable Development & Land Use Committee Meeting Meeting 2010-2011
will be made available on the SD&LU web page. 5. SDAG Report - Katrina Kroeze The SDAG held their first meeting by the end of January 2011. - Keith Baxter mentioned that the Johnson basement was very dark with the dark
University of Sussex Life Sciences
Sussex, University of
.sussex.ac.uk/lifesci/clokelab My group focuses on using organometallic chemistry to transform carbon monoxide or carbon dioxide of biological interest and the properties of heterocyclic drugs and natural products. Jon Baxter www of them. Hazel Cox www.sussex.ac.uk/lifesci/coxlab We use quantum theory to determine the properties
Assuring the Safety, Security, and Reliability of Medical-Device Cyber-
Hu, Fei
· Difibtech external defibrillators (2007) Self-test resets low-battery status · Baxter's Colleague Infusion of adverse events associated with the use of infusion pumps - 1% deaths, 34% serious injuries - 87 infusion and Radiological Health. White Paper: Infusion Pump Improvement Initiative, April 2010 Infusion Pump Safety #12
Seismic Screening, Evaluation, Rehabilitation, and Design Provisions for Wood-Framed Structures
Gupta, Rakesh
Seismic Screening, Evaluation, Rehabilitation, and Design Provisions for Wood-Framed Structures Preston Baxter, M.ASCE1 ; Thomas H. Miller, M.ASCE2 ; and Rakesh Gupta, M.ASCE3 Abstract: Seismic Database subject headings: Seismic analysis; Seismic design; Wood structures; Shear walls; Diaphragms
Barber, Stuart
, Leeds Metropolitan University, School of Information m Management, Leeds, LS6 3QS; email: p.marchant@leedsmet.ac.uk; phone: 0113 283 6109; fax: 0113 283 7599 Paul D. Baxter* and Stuart Barber, University of Leeds, Department of Statistics, Leeds LS2 9JT; email: pdbaxt@maths.leeds.ac.uk, stuart@maths.leeds.ac.uk; phone
M. Talon
1992-10-02
We study integrable dynamical systems described by a Lax pair involving a spectral parameter. By solving the classical Yang-Baxter equation when the R-matrix has two poles we show that they can be interpreted as natural motions on a twisted loop algebra.
October 2014 EPL, 108 (2014) 24001 www.epljournal.org
Mahadevan, L.
2014-01-01
mica surface, which is a hy- drophilic surface with a vanishing contact angle, as shown in fig. 1(b surfaces that are special: heated beyond the boil- ing temperature of the impacting liquid [6] or superhy- drophobic; textured and functionalized to comply with a Cassie-Baxter state, wherein the liquid is supported
1 Copyright 2011 by ASME Proceedings of the ASME/JSME 2011 8th
Hidrovo, Carlos H.
in superhydrophobic microfluidic channels. Herein we characterize the wetting behavior as a function of temperature the amplifying effect that surface texturing has on the Young's contact angle under fully liquid imbibed conditions. The Cassie-Baxter state models the macroscopic contact angle formed when air pockets exist within
at the Baxter Water Treatment Plant began on 15 June 1999 and the site was fully operational from 28 June to 19Investigations of Ozone and Particulate Matter Air Pollution in the Northeast C.R. Philbrick, Dept a significant pollution event, during which substantial increases in both ozone (concentration 125 ppb) and air
Continuous space-time symmetries in a lattice field theory
H. B. Thacker
1998-09-18
For purposes of regularization as well as numerical simulation, the discretization of Lorentz invariant continuum field theories on a space-time lattice is often convenient. In general, this discretization destroys the rotational or Lorentz-frame independence of the theory, which is only recovered in the continuum limit. The Baxter 8-vertex model may be interpreted as a particular discretization of a self-interacting massive Dirac fermion theory in two dimensions (the massive Thirring model). Here it is shown that, in the 8-vertex/massive Thirring model, the Lorentz frame independence of the theory remains undisturbed on the lattice. The only effect of the discretization is to compactify the manifold of Lorentz frames. The relationship between this lattice Lorentz symmetry and the Yang-Baxter relations is discussed.
Fossil fungi from America Pennsylvanian coal balls
Baxter, R. W.
1975-05-29
THE UNIVERSITY OF KANSAS PALEONTOLOGICAL CONTRIBUTIONS May 29, 1975 Paper 77 FOSSIL FUNGI FROM AMERICAN PENNSYLVANIAN COAL BALLS' ROBERT W. BAXTER University of Kansas, Lawrence, Kansas ABSTRACT The current status of knowledge regarding fossil... fungi from American Pennsylvanian coal balls is discussed under the following general headings: 1) Phycomycetes, 2) Asco- mycetes, 3) Basidiomycetes, 4) fungal sclerotia, 5) mycorrhizal fungi, and 6) "fleshy fungi." Protoascon missouriensis...
UConn Health Department of Pharmacy
Oliver, Douglas L.
agents (e.g. write on or label the box, remove the filter, remove the package insert) or JDH Pharmacy:RCo trough level >50% 2 For up to 7 days References: LexiComp, NovoSeven RT (NovoNordisk) package insert http://www.novo-pi.com/novosevenrt.pdf Recombinate (Baxter) package insert http://factorviia.com/pi.pdf BeneFix (Wyeth) package insert http://www
Parental Differences in Infant-Directed Emotional Communication
Goodman, Lynnel 1990-
2012-04-30
an adult who presents an emotional cue. They also look at how the baby approaches (Mumme, Fernald, & Herrera, 1996; Walden & Baxter, 1989 ), plays with(Moses, Baldwin, _______________ This thesis follows the style of Developmental Psychology. 2... Rosicky, Tidball, 2001; Mumme & Fernald, 2003), or looks at the toys. Using this procedure, Mumme, Fernald, & Herrera (1996) also indicated that at 1 year old, infants can interpret the emotional expressions of adults and determine the relevance...
Mora, Miguel A.
Chihuahua and Veracruz, Mexico M.A. Mora a,*, C. Baxter a , J.L. Sericano b , A.B. Montoya c , J.C. Gallardo Neuroetología, Universidad Veracruzana, Xalapa, Veracruz 91190, Mexico a r t i c l e i n f o Article history falcon PBDEs PCBs DDE Mexico a b s t r a c t Eggs from aplomado falcons (Falco femoralis septentrionalis
On the absence of simultaneous reflection and transmission in integrable impurity systems
O. A. Castro-Alvaredo; A. Fring; F. Göhmann
2002-06-01
We establish that the Yang-Baxter equations in the presence of an impurity can in general only admit solutions of simultaneous tranmission and reflection when the transmission and reflection amplitudes commute in the defect degrees of freedom with an additional exchange of the corresponding rapidities. In the absence of defect degrees of freedom we show in complete generality, that the only exceptions to this are theories which possess rapidity independent bulk scattering matrices. In particular bulk theories with diagonal scattering matrices, can only be the free Boson and Fermion, the Federbush model and their generalizations. These anyonic solutions do not admit the possibility of excited impurity states.
Fusion hierarchies for N = 4 superYang-Mills theory
A. V. Belitsky
2008-04-12
We employ the analytic Bethe Anzats to construct eigenvalues of transfer matrices with finite-dimensional atypical representations in the auxiliary space for the putative long-range spin chain encoding anomalous dimensions of all composite single-trace gauge invariant operators of the maximally supersymmetric Yang-Mills theory. They obey an infinite fusion hierarchy which can be reduced to a finite set of integral relations for a minimal set of transfer matrices. This set is used to derive a finite systems of functional equations for eigenvalues of nested Baxter polynomials.
Rise and fall of a tactic: the ram in nineteenth century naval doctrine
Johnson, Robert Leroy
1989-01-01
, the chests reached velocities of between four and six meters per second and U. S. , Congress, House of Representatives, Report Number 681: "War Steamers, " to accompany bill H. R. $448 (29th Congress, 1st Session, 20 May, 1846), 27. Barron, "Prow Ship", p.... , 158; "A Royal Navy Officer", "Tactical Results of Recent Naval Construction, " Naval Science, Vol. 2 No. 2 (AP '1, 1873), 1397 Ed d J 2 d, ~0 ~ld 88 ((. o d: JoR M 9, 1869), 20. Baxter, Introduction of the Ironclad Warshi , 100. U. S. , Department...
RSOS Quantum Chains Associated with Off-Critical Minimal Models and $\\mathbb{Z}_n$ Parafermions
Davide Bianchini; Elisa Ercolessi; Paul A. Pearce; Francesco Ravanini
2014-12-16
We consider the $\\varphi_{1,3}$ off-critical perturbation ${\\cal M}(m,m';t)$ of the general non-unitary minimal models where $2\\le m\\le m'$ and $m, m'$ are coprime and $t$ measures the departure from criticality corresponding to the $\\varphi_{1,3}$ integrable perturbation. We view these models as the continuum scaling limit in the ferromagnetic Regime III of the Forrester-Baxter Restricted Solid-On-Solid (RSOS) models on the square lattice. We also consider the RSOS models in the antiferromagnetic Regime II related in the continuum scaling limit to $\\mathbb{Z}_n$ parfermions with $n=m'-2$. Using an elliptic Yang-Baxter algebra of planar tiles encoding the allowed face configurations, we obtain the Hamiltonians of the associated quantum chains defined as the logarithmic derivative of the transfer matrices with periodic boundary conditions. The transfer matrices and Hamiltonians act on a vector space of paths on the $A_{m'-1}$ Dynkin diagram whose dimension is counted by generalized Fibonacci numbers.
W-Extended Fusion Algebra of Critical Percolation
Jorgen Rasmussen; Paul A. Pearce
2008-04-28
Two-dimensional critical percolation is the member LM(2,3) of the infinite series of Yang-Baxter integrable logarithmic minimal models LM(p,p'). We consider the continuum scaling limit of this lattice model as a `rational' logarithmic conformal field theory with extended W=W_{2,3} symmetry and use a lattice approach on a strip to study the fundamental fusion rules in this extended picture. We find that the representation content of the ensuing closed fusion algebra contains 26 W-indecomposable representations with 8 rank-1 representations, 14 rank-2 representations and 4 rank-3 representations. We identify these representations with suitable limits of Yang-Baxter integrable boundary conditions on the lattice and obtain their associated W-extended characters. The latter decompose as finite non-negative sums of W-irreducible characters of which 13 are required. Implementation of fusion on the lattice allows us to read off the fusion rules governing the fusion algebra of the 26 representations and to construct an explicit Cayley table. The closure of these representations among themselves under fusion is remarkable confirmation of the proposed extended symmetry.
The colored Kitaev chain with triple degeneracy
Li-Wei Yu; Mo-Lin Ge
2015-07-19
We construct the 1D colored Kitaev model based on the solution of Yang-Baxter equation. We show that the colored Kitaev model possesses both triple degenerate ground states and non-trivial topological winding number. Hence, the colored Kitaev model is a direct generalization of 1D Kitaev model. On the other hand, inspired by the 3-body Majorana model proposed by Lee and Wilczek, we define a new 3-body Hamiltonian $\\hat{H}_{123}$ based on Yang-Baxter equation. Different from the Majorana doubling, $\\hat{H}_{123}$ holds triple degeneracy in each energy level. The triple degeneracy is protected by two symmetry operators of the system, $\\omega$-parity $P$($\\omega=e^{{\\textrm{i}\\frac{2\\pi}{3}}}$) and emergent operator $\\Gamma$, which are the generalization of parity $P_{M}$ and emergent Majorana operator in Lee-Wilczek model, respectively. Both the colored Kitaev model and $\\hat{H}_{123}$ are SU(3)-like models in color space. In comparison with the Majorana models at SU(2)-level, we find that the SU(3)-like models are exactly the generalization of Majorana models.
Integrated Heat Pump HVAC Systems for Near-Zero-Energy Homes - Business Case Assessment
Baxter, Van D
2007-05-01
The long range strategic goal of the Department of Energy's Building Technologies (DOE/BT) Program is to create, by 2020, technologies and design approaches that enable the construction of net-zero energy homes at low incremental cost (DOE/BT 2005). A net zero energy home (NZEH) is a residential building with greatly reduced needs for energy through efficiency gains, with the balance of energy needs supplied by renewable technologies. While initially focused on new construction, these technologies and design approaches are intended to have application to buildings constructed before 2020 as well resulting in substantial reduction in energy use for all building types and ages. DOE/BT's Emerging Technologies (ET) team is working to support this strategic goal by identifying and developing advanced heating, ventilating, air-conditioning, and water heating (HVAC/WH) technology options applicable to NZEHs. Although the energy efficiency of heating, ventilating, and air-conditioning (HVAC) equipment has increased substantially in recent years, new approaches are needed to continue this trend. Dramatic efficiency improvements are necessary to enable progress toward the NZEH goals, and will require a radical rethinking of opportunities to improve system performance. The large reductions in HVAC energy consumption necessary to support the NZEH goals require a systems-oriented analysis approach that characterizes each element of energy consumption, identifies alternatives, and determines the most cost-effective combination of options. In particular, HVAC equipment must be developed that addresses the range of special needs of NZEH applications in the areas of reduced HVAC and water heating energy use, humidity control, ventilation, uniform comfort, and ease of zoning. In FY05 ORNL conducted an initial Stage 1 (Applied Research) scoping assessment of HVAC/WH systems options for future NZEHs to help DOE/BT identify and prioritize alternative approaches for further development. Eleven system concepts with central air distribution ducting and nine multi-zone systems were selected and their annual and peak demand performance estimated for five locations: Atlanta (mixed-humid), Houston (hot-humid), Phoenix (hot-dry), San Francisco (marine), and Chicago (cold). Performance was estimated by simulating the systems using the TRNSYS simulation engine (Solar Energy Laboratory et al. 2006) in two 1800-ft{sup 2} houses--a Building America (BA) benchmark house and a prototype NZEH taken from BEopt results at the take-off (or crossover) point (i.e., a house incorporating those design features such that further progress towards ZEH is through the addition of photovoltaic power sources, as determined by current BEopt analyses conducted by NREL). Results were summarized in a project report, 'HVAC Equipment Design options for Near-Zero-Energy Homes--A Stage 2 Scoping Assessment', ORNL/TM-2005/194 (Baxter 2005). The 2005 study report describes the HVAC options considered, the ranking criteria used, and the system rankings by priority. Table 1 summarizes the energy savings potential of the highest scoring options from the 2005 study for all five locations. All system options were scored by the ORNL building equipment research team and by William Goetzler of Navigant Consulting. These scores were reviewed by DOE/BT's Residential Integration program leaders and Building America team members. Based on these results, the two centrally ducted integrated heat pump (IHP) systems (air source and ground source versions) were selected for advancement to Stage 2 (Exploratory Development) business case assessments in FY06. This report describes results of these business case assessments. It is a compilation of three separate reports describing the initial business case study (Baxter 2006a), an update to evaluate the impact of an economizer cooling option (Baxter 2006b), and a second update to evaluate the impact of a winter humidification option (Baxter 2007). In addition it reports some corrections made subsequent to release of the first two reports to correct so
Quiver gauge theories and integrable lattice models
Junya Yagi
2015-06-30
We discuss connections between certain classes of supersymmetric quiver gauge theories and integrable lattice models from the point of view of topological quantum field theories (TQFTs). The relevant classes include 4d $\\mathcal{N} = 1$ theories known as brane box and brane tilling models, 3d $\\mathcal{N} = 2$ and 2d $\\mathcal{N} = (2,2)$ theories obtained from them by compactification, and 2d $\\mathcal{N} = (0,2)$ theories closely related to these theories. We argue that their supersymmetric indices carry structures of TQFTs equipped with line operators, and as a consequence, are equal to the partition functions of lattice models. The integrability of these models follows from the existence of extra dimension in the TQFTs, which emerges after the theories are embedded in M-theory. The Yang-Baxter equation expresses the invariance of supersymmetric indices under Seiberg duality and its lower-dimensional analogs.
On Affine Fusion and the Phase Model
Mark A. Walton
2012-11-15
A brief review is given of the integrable realization of affine fusion discovered recently by Korff and Stroppel. They showed that the affine fusion of the $su(n)$ Wess-Zumino-Novikov-Witten (WZNW) conformal field theories appears in a simple integrable system known as the phase model. The Yang-Baxter equation leads to the construction of commuting operators as Schur polynomials, with noncommuting hopping operators as arguments. The algebraic Bethe ansatz diagonalizes them, revealing a connection to the modular S matrix and fusion of the $su(n)$ WZNW model. The noncommutative Schur polynomials play roles similar to those of the primary field operators in the corresponding WZNW model. In particular, their 3-point functions are the $su(n)$ fusion multiplicities. We show here how the new phase model realization of affine fusion makes obvious the existence of threshold levels, and how it accommodates higher-genus fusion.
Kirkland gets license in hot Philippines area
Kirkland, A.S.
1992-08-03
This paper reports that Kirkland As, Oslo, has received a geophysical survey and exploration contract (GSEC) in a sizzling exploration and development theater off the Philippines. The license covers about 6,000 sq miles of undisputed waters, with depths mostly less than 300 ft, and lies in the Reed Bank area off Northwest Palawan Island, where several major oil and gas strikes have been made recently. Kirkland has 1 year in which to carry out its seismic work commitment. The terms of the GSEC then give an option to drill one well in a 6 month period. Once the results have been analyzed, the company can either drill another well or enter into a service contract for the license. Kirkland has a 65% share in the license, with the remainder split between Philippine companies Philodrill Corp., Beguet Mining Corp. subsidiary Petrofields, and Seafront Resources Corp. The Philippines is one of Kirkland's main areas of activity, the Kirkland Commercial Manager Ralph Baxter.
Jesper Lykke Jacobsen
2010-06-11
We present an efficient algorithm for computing the partition function of the q-colouring problem (chromatic polynomial) on regular two-dimensional lattice strips. Our construction involves writing the transfer matrix as a product of sparse matrices, each of dimension ~ 3^m, where m is the number of lattice spacings across the strip. As a specific application, we obtain the large-q series of the bulk, surface and corner free energies of the chromatic polynomial. This extends the existing series for the square lattice by 32 terms, to order q^{-79}. On the triangular lattice, we verify Baxter's analytical expression for the bulk free energy (to order q^{-40}), and we are able to conjecture exact product formulae for the surface and corner free energies.
B. Abdesselam; A. Chakrabarti
2008-07-02
For a class of multiparameter statistical models based on $N^2\\times N^2$ braid matrices the eigenvalues of the transfer matrix ${\\bf T}^{(r)}$ are obtained explicitly for all $(r,N)$. Our formalism yields them as solutions of sets of linear equations with simple constant coefficients. The role of zero-sum multiplets constituted in terms of roots of unity is pointed out and their origin is traced to circular permutations of the indices in the tensor products of basis states induced by our class of ${\\bf T}^{(r)}$ matrices. The role of free parameters, increasing as $N^2$ with $N$, is emphasized throughout. Spin chain Hamiltonians are constructed and studied for all $N$. Inverse Cayley transforms of Yang-Baxter matrices corresponding to our braid matrices are obtained for all $N$. They provide potentials for factorizable $S$-matrices. Main results are summarized and perspectives are indicated in the concluding remarks.
Pre-alternative algebras and pre-alternative bialgebras
Xiang Ni; Chengming Bai
2009-07-20
We introduce a notion of pre-alternative algebra which may be seen as an alternative algebra whose product can be decomposed into two pieces which are compatible in a certain way. It is also the "alternative" analogue of a dendriform dialgebra or a pre-Lie algebra. The left and right multiplication operators of a pre-alternative algebra give a bimodule structure of the associated alternative algebra. There exists a (coboundary) bialgebra theory for pre-alternative algebras, namely, pre-alternative bialgebras, which exhibits all the familiar properties of the famous Lie bialgebra theory. In particular, a pre-alternative bialgebra is equivalent to a phase space of an alternative algebra and our study leads to what we called $PA$-equations in a pre-alternative algebra, which are analogues of the classical Yang-Baxter equation.
On connection matrices of quantum Knizhnik-Zamolodchikov equations based on Lie super algebras
W. Galleas; J. V. Stokman
2015-10-19
We propose a new method to compute connection matrices of quantum Knizhnik-Zamolodchikov equations associated to integrable vertex models with super algebra and Hecke algebra symmetries. The scheme relies on decomposing the underlying spin representation of the affine Hecke algebra in principal series modules and invoking the known solution of the connection problem for quantum affine Knizhnik-Zamolodchikov equations associated to principal series modules. We apply the method to the spin representation underlying the $\\mathcal{U}_q\\bigl(\\widehat{\\mathfrak{gl}}(2|1)\\bigr)$ Perk-Schultz model. We show that the corresponding connection matrices are described by an elliptic solution of a supersymmetric version of the dynamical quantum Yang-Baxter equation with spectral parameter.
SANS study of HC1 extraction by selected neutral organophosphorus compounds in n-octane.
Chiarizia, R.; Stepinski, D.; Antonio, M. R. (Chemical Sciences and Engineering Division)
2010-01-01
The extraction of HCl by tri(2-ethylhexyl) phosphate (TEHP), tri-n-octyl phosphate (TOP), and tri-n-octylphosphine oxide (TOPO) in n-octane was investigated by liquid-liquid distribution of acid and water and small-angle neutron scattering (SANS) measurements. No formation of a heavy organic phase (third phase) was observed with TEHP and TOP under the experimental conditions used, whereas for 0.4 M TOPO the HCl limiting organic concentration (LOC) at 23 C was 0.32 M (with 5.1 M HCl in the equilibrium aqueous phase). For higher HCl concentrations in the aqueous phase, the organic phase splits into a light and a heavy layer. For TEHP and TOP, the SANS results, interpreted using the Baxter model for hard spheres with surface adhesion, indicated the formation of only small reverse micelles with little intermicellar attraction. For TOPO, the scattering signals suggested the formation of much larger and strongly interacting micelles. The critical values of the stickiness parameter, {tau}{sup -1}, and the interaction potential energy, U(r), for the LOC sample in the TOPO system were consistent with the model for third-phase formation previously developed for tri-n-butyl phosphate (TBP). According to this model, organic phase splitting is due to van der Waals interactions between the polar cores of reverse micelles formed by the extractants in the organic phase.
T-system on T-hook: Grassmannian Solution and Twisted Quantum Spectral Curve
Kazakov, Vladimir; Volin, Dmytro
2015-01-01
We propose an efficient grassmannian formalism for solution of bi-linear finite-difference Hirota equation (T-system) on T-shaped lattices related to the space of highest weight representations of $gl(K_1,K_2|M)$ superalgebra. The formalism is inspired by the quantum fusion procedure known from the integrable spin chains and is based on exterior forms of Baxter-like Q-functions. We find a few new interesting relations among the exterior forms of Q-functions and reproduce, using our new formalism, the Wronskian determinant solutions of Hirota equations known in the literature. Then we generalize this construction to the twisted Q-functions and demonstrate the subtleties of untwisting procedure on the examples of rational quantum spin chains with twisted boundary conditions. Using these observations, we generalize the recently discovered, in our paper with N. Gromov, AdS/CFT Quantum Spectral Curve for exact planar spectrum of AdS/CFT duality to the case of arbitrary twisting of AdS$_5\\times$S$^5$ string sigma m...
Fermionic expressions for minimal model Virasoro characters
Trevor A. Welsh
2004-02-04
Fermionic expressions for all minimal model Virasoro characters $\\chi^{p, p'}_{r, s}$ are stated and proved. Each such expression is a sum of terms of fundamental fermionic form type. In most cases, all these terms are written down using certain trees which are constructed for $s$ and $r$ from the Takahashi lengths and truncated Takahashi lengths associated with the continued fraction of $p'/p$. In the remaining cases, in addition to such terms, the fermionic expression for $\\chi^{p, p'}_{r, s}$ contains a different character $\\chi^{\\hat p, \\hat p'}_{\\hat r,\\hat s}$, and is thus recursive in nature. Bosonic-fermionic $q$-series identities for all characters $\\chi^{p, p'}_{r, s}$ result from equating these fermionic expressions with known bosonic expressions. In the cases for which $p=2r$, $p=3r$, $p'=2s$ or $p'=3s$, Rogers-Ramanujan type identities result from equating these fermionic expressions with known product expressions for $\\chi^{p, p'}_{r, s}$. The fermionic expressions are proved by first obtaining fermionic expressions for the generating functions $\\chi^{p, p'}_{a, b, c}(L)$ of length $L$ Forrester-Baxter paths, using various combinatorial transforms. In the $L\\to\\infty$ limit, the fermionic expressions for $\\chi^{p, p'}_{r, s}$ emerge after mapping between the trees that are constructed for $b$ and $r$ from the Takahashi and truncated Takahashi lengths respectively.
The su(n) WZNW fusion ring as integrable model: a new algorithm to compute fusion coefficients
Christian Korff
2012-09-17
This is a proceedings article reviewing a recent combinatorial construction of the su(n) WZNW fusion ring by C. Stroppel and the author. It contains one novel aspect: the explicit derivation of an algorithm for the computation of fusion coefficients different from the Kac-Walton formula. The discussion is presented from the point of view of a vertex model in statistical mechanics whose partition function generates the fusion coefficients. The statistical model can be shown to be integrable by linking its transfer matrix to a particular solution of the Yang-Baxter equation. This transfer matrix can be identified with the generating function of an (infinite) set of polynomials in a noncommutative alphabet: the generators of the local affine plactic algebra. The latter is a generalisation of the plactic algebra occurring in the context of the Robinson-Schensted correspondence. One can define analogues of Schur polynomials in this noncommutative alphabet which become identical to the fusion matrices when represented as endomorphisms over the state space of the integrable model. Crucial is the construction of an eigenbasis, the Bethe vectors, which are the idempotents of the fusion algebra.
Quantum integrable systems. Quantitative methods in biology
Giovanni Feverati
2011-01-19
Quantum integrable systems have very strong mathematical properties that allow an exact description of their energetic spectrum. From the Bethe equations, I formulate the Baxter "T-Q" relation, that is the starting point of two complementary approaches based on nonlinear integral equations. The first one is known as thermodynamic Bethe ansatz, the second one as Kl\\"umper-Batchelor-Pearce-Destri- de Vega. I show the steps toward the derivation of the equations for some of the models concerned. I study the infrared and ultraviolet limits and discuss the numerical approach. Higher rank integrals of motion can be obtained, so gaining some control on the eigenvectors. After, I discuss the Hubbard model in relation to the N = 4 supersymmetric gauge theory. The Hubbard model describes hopping electrons on a lattice. In the second part, I present an evolutionary model based on Turing machines. The goal is to describe aspects of the real biological evolution, or Darwinism, by letting evolve populations of algorithms. Particularly, with this model one can study the mutual transformation of coding/non coding parts in a genome or the presence of an error threshold. The assembly of oligomeric proteins is an important phenomenon which interests the majority of proteins in a cell. I participated to the creation of the project "Gemini" which has for purpose the investigation of the structural data of the interfaces of such proteins. The objective is to differentiate the role of amino acids and determine the presence of patterns characterizing certain geometries.
One-point Functions in AdS/dCFT from Matrix Product States
Buhl-Mortensen, Isak; Kristjansen, Charlotte; Zarembo, Konstantin
2015-01-01
One-point functions of certain non-protected scalar operators in the defect CFT dual to the D3-D5 probe brane system with k units of world volume flux can be expressed as overlaps between Bethe eigenstates of the Heisenberg spin chain and a matrix product state. We present a closed expression of determinant form for these one-point functions, valid for any value of k. The determinant formula factorizes into the k=2 result times a k-dependent prefactor. Making use of the transfer matrix of the Heisenberg spin chain we recursively relate the matrix product state for higher even and odd k to the matrix product state for k=2 and k=3 respectively. We furthermore find evidence that the matrix product states for k=2 and k=3 are related via a ratio of Baxter's Q-operators. The general k formula has an interesting thermodynamical limit involving a non-trivial scaling of k, which indicates that the match between string and field theory one-point functions found for chiral primaries might be tested for non-protected ope...
Finite-Volume Spectra of the Lee-Yang Model
Zoltan Bajnok; Omar el Deeb; Paul A. Pearce
2014-12-29
We consider the non-unitary Lee-Yang minimal model ${\\cal M}(2,5)$ in three different finite geometries: (i) on the interval with integrable boundary conditions labelled by the Kac labels $(r,s)=(1,1),(1,2)$, (ii) on the circle with periodic boundary conditions and (iii) on the periodic circle including an integrable purely transmitting defect. We apply $\\varphi_{1,3}$ integrable perturbations on the boundary and on the defect and describe the flow of the spectrum. Adding a $\\Phi_{1,3}$ integrable perturbation to move off-criticality in the bulk, we determine the finite size spectrum of the massive scattering theory in the three geometries via Thermodynamic Bethe Ansatz (TBA) equations. We derive these integral equations for all excitations by solving, in the continuum scaling limit, the TBA functional equations satisfied by the transfer matrices of the associated $A_{4}$ RSOS lattice model of Forrester and Baxter in Regime III. The excitations are classified in terms of $(m,n)$ systems. The excited state TBA equations agree with the previously conjectured equations in the boundary and periodic cases. In the defect case, new TBA equations confirm previously conjectured transmission factors.
Michael S. Bruno
2005-12-31
This report summarizes the research efforts on the DOE supported research project Percussion Drilling (DE-FC26-03NT41999), which is to significantly advance the fundamental understandings of the physical mechanisms involved in combined percussion and rotary drilling, and thereby facilitate more efficient and lower cost drilling and exploration of hard-rock reservoirs. The project has been divided into multiple tasks: literature reviews, analytical and numerical modeling, full scale laboratory testing and model validation, and final report delivery. Literature reviews document the history, pros and cons, and rock failure physics of percussion drilling in oil and gas industries. Based on the current understandings, a conceptual drilling model is proposed for modeling efforts. Both analytical and numerical approaches are deployed to investigate drilling processes such as drillbit penetration with compression, rotation and percussion, rock response with stress propagation, damage accumulation and failure, and debris transportation inside the annulus after disintegrated from rock. For rock mechanics modeling, a dynamic numerical tool has been developed to describe rock damage and failure, including rock crushing by compressive bit load, rock fracturing by both shearing and tensile forces, and rock weakening by repetitive compression-tension loading. Besides multiple failure criteria, the tool also includes a damping algorithm to dissipate oscillation energy and a fatigue/damage algorithm to update rock properties during each impact. From the model, Rate of Penetration (ROP) and rock failure history can be estimated. For cuttings transport in annulus, a 3D numerical particle flowing model has been developed with aid of analytical approaches. The tool can simulate cuttings movement at particle scale under laminar or turbulent fluid flow conditions and evaluate the efficiency of cutting removal. To calibrate the modeling efforts, a series of full-scale fluid hammer drilling tests, as well as single impact tests, have been designed and executed. Both Berea sandstone and Mancos shale samples are used. In single impact tests, three impacts are sequentially loaded at the same rock location to investigate rock response to repetitive loadings. The crater depth and width are measured as well as the displacement and force in the rod and the force in the rock. Various pressure differences across the rock-indentor interface (i.e. bore pressure minus pore pressure) are used to investigate the pressure effect on rock penetration. For hammer drilling tests, an industrial fluid hammer is used to drill under both underbalanced and overbalanced conditions. Besides calibrating the modeling tool, the data and cuttings collected from the tests indicate several other important applications. For example, different rock penetrations during single impact tests may reveal why a fluid hammer behaves differently with diverse rock types and under various pressure conditions at the hole bottom. On the other hand, the shape of the cuttings from fluid hammer tests, comparing to those from traditional rotary drilling methods, may help to identify the dominant failure mechanism that percussion drilling relies on. If so, encouraging such a failure mechanism may improve hammer performance. The project is summarized in this report. Instead of compiling the information contained in the previous quarterly or other technical reports, this report focuses on the descriptions of tasks, findings, and conclusions, as well as the efforts on promoting percussion drilling technologies to industries including site visits, presentations, and publications. As a part of the final deliveries, the 3D numerical model for rock mechanics is also attached.
Third phase formation in the extraction of phosphotungstic acid by TBP in n-octane.
Antonio, M. R.; Chiarizia, R.; Jaffrennou, F. (Chemical Sciences and Engineering Division)
2010-08-30
The solvent extraction of 12-phosphotungstic acid, also known as 12-tungstophosphoric acid-H{sub 3}PW{sub 12}O{sub 40}, the so-called Keggin heteropolyacid - by 0.73 M (20%v/v) tri-n-butyl phosphate (TBP) in n-octane under conditions comparable to those used previously for the extraction of conventional inorganic mineral acids is described. A simplified phase diagram for the pentanary system comprised of H{sub 3}PW{sub 12}O{sub 40}, HNO{sub 3}, H{sub 2}O, TBP, and n-octane reveals an extremely low initial concentration of H{sub 3}PW{sub 12}O{sub 40} (1.1 mM) at the LOC (limiting organic concentration) condition, far lower than the most effective third-phase-forming inorganic acid, namely HClO{sub 4}. The results from small-angle neutron scattering (SANS) indicate that the interparticle attraction energy - U(r) calculated through application of the Baxter sticky sphere model to the SANS data at the LOC condition - does not approach the -2 k{sub B} T value associated with phase splitting in previous studies of TBP third-phase formation. The third-phase formation model based on attractive interactions between polar cores of reverse micelles, successfully developed for TBP and other extraction systems does not apply to the extraction of H{sub 3}PW{sub 12}O{sub 40}. Rather, the separation of a third-phase from the TBP organic phase stems from the limited solubility of the heavy and highly polar H{sub 3}PW{sub 12}O{sub 40}-TBP species in the alkane diluent.
Q-operators, Yangian invariance and the quantum inverse scattering method
Rouven Frassek
2014-12-10
Inspired by the integrable structures appearing in weakly coupled planar N=4 super Yang-Mills theory, we study Q-operators and Yangian invariants of rational integrable spin chains. We review the quantum inverse scattering method along with the Yang-Baxter equation which is the key relation in this systematic approach to study integrable models. Our main interest concerns rational integrable spin chains and lattice models. We recall the relation among them and how they can be solved using Bethe ansatz methods incorporating so-called Q-functions. In order to remind the reader how the Yangian emerges in this context, an overview of its so-called RTT-realization is provided. The main part is based on the author's original publications. Firstly, we construct Q-operators whose eigenvalues yield the Q-functions for rational homogeneous spin chains. The Q-operators are introduced as traces over certain monodromies of R-operators. Our construction allows us to derive the hierarchy of commuting Q-operators and the functional relations among them. We study how the nearest-neighbor Hamiltonian and in principle also higher local charges can be extracted from the Q-operators directly. Secondly, we formulate the Yangian invariance condition, also studied in relation to scattering amplitudes of N=4 super Yang-Mills theory, in the RTT-realization. We find that Yangian invariants can be interpreted as special eigenvectors of certain inhomogeneous spin chains. This allows us to apply the algebraic Bethe ansatz and derive the corresponding Bethe equations that are relevant to construct the invariants. We examine the connection between the Yangian invariant spin chain eigenstates whose components can be understood as partition functions of certain 2d lattice models and tree-level scattering amplitudes of the four-dimensional gauge theory. Finally, we conclude and discuss some future directions.
Sans study of reverse micelles formed upon extraction of inorganic acids by TBP in n-octane.
Chiarizia, R.; Briand, A.; Jensen, M. P.; Thiyagarajan, P.
2008-01-01
Small-angle neutron scattering (SANS) data for n-octane solutions of TBP loaded with progressively larger amounts of HNO{sub 3}, HClO{sub 4}, H{sub 2}SO{sub 4}, and H{sub 3}PO{sub 4} up to and beyond the LOC (limiting organic concentration of acid) condition, were interpreted using the Baxter model for hard spheres with surface adhesion. The coherent picture of the behavior of the TBP solutions derived from the SANS investigation discussed in this paper confirmed our recently developed model for third phase formation. This model analyses the features of the scattering data in the low Q region as arising from van der Waals interactions between the polar cores of reverse micelles. Our SANS data indicated that the TBP micelles swell when acid and water are extracted into their polar core. The swollen micelles have critical diameters ranging from 15 to 22 {angstrom}, and polar core diameters between 10 and 15 {angstrom}, depending on the specific system. At the respective LOC conditions, the TBP weight-average aggregation numbers are -4 for HClO{sub 4}, -6 for H2SO{sub 4}, -7 for HCl, and -10 for H{sub 3}PO{sub 4}. The comparison between the behavior of HNO{sub 3}, a non-third phase forming acid, and the other acids provided an explanation of the effect of the water molecules present in the polar core of the micelles on third phase formation. The thickness of the lipophilic shell of the micelles indicated that the butyl groups of TBP lie at an angle of -25 degrees relative to a plane tangent to the micellar core. The critical energy of intermicellar attraction, U(r), was about -2 k{sub B}T for all the acids investigated. This value is the same as that reported in our previous publications on the extraction of metal nitrates by TBP, confirming that the same mechanism and energetics are operative in the formation of a third phase, independent of whether the chemical species extracted are metal nitrate salts or inorganic acids.
Heat Pump Water Heater Durabliltiy Testing - Phase II
Baxter, VAND.
2004-05-29
Ten heat pump water heaters (HPWH) were placed in an environmentally controlled test facility and run through a durability test program of approximately 7300 duty cycles (actual cycles accumulated ranged from 6640 to 8324 for the ten units). Five of the units were upgraded integral types (HPWH mounted on storage tank, no pump) from the same manufacturer as those tested in our first durability program in 2001 (Baxter and Linkous, 2002). The other five were ''add-on'' type units (HPWH with circulation pump plumbed to a separate storage tank) from another manufacturer. This durability test was designed to represent approximately 7-10 years of normal operation to meet the hot water needs of a residence. The integral units operated without incident apart from two control board failures. Both of these were caused by inadvertent exposure to very hot and humid (>135 F dry bulb and >120 F dew point) conditions that occurred due to a test loop failure. It is not likely that any residential water heater would be installed where such conditions were expected so these failures are not considered a long-term reliability concern. Two of the integral HPWHs featured a condensate management system (CMS) option that effectively eliminated any need for an evaporator condensate drain, but imposed significant efficiency penalties when operating in high humidity ambient conditions. The add-on units experienced no operational failures (breakdowns with loss of hot water production) during the course of the testing. However, their control systems exhibited some performance degradation under the high temperature, high humidity test conditions--HPWHs would shut off with tank water temperatures 15-20 F lower than when operating under moderate ambient conditions. One unit developed a refrigerant leak during the test program and lost about 50% of its charge resulting in reduced efficiency. Efficiency measurements on all the integral units and four of the add-on units showed significantly higher efficiencies than conventional electric water heaters (EWH). DOE Simulated Use Tests conducted prior to starting the durability testing resulted in energy factors (EF) of about 2.3 for the integral design and 1.4 for the add-on design compared to the minimum value of 0.86 prescribed for EWHs. Based on the experience from this and the previous durability testing, there is no evidence that strongly suggests that any of the HPWHs suffered significant performance degradation after undergoing over 7000 water heat cycles.
Baxter, Van D
2007-02-01
The long range strategic goal of the Department of Energy's Building Technologies (DOE/BT) Program is to create, by 2020, technologies and design approaches that enable the construction of net-zero energy homes at low incremental cost (DOE/BT 2005). A net zero energy home (NZEH) is a residential building with greatly reduced needs for energy through efficiency gains, with the balance of energy needs supplied by renewable technologies. While initially focused on new construction, these technologies and design approaches are intended to have application to buildings constructed before 2020 as well resulting in substantial reduction in energy use for all building types and ages. DOE/BT's Emerging Technologies (ET) team is working to support this strategic goal by identifying and developing advanced heating, ventilating, air-conditioning, and water heating (HVAC/WH) technology options applicable to NZEHs. In FY05 ORNL conducted an initial Stage 1 (Applied Research) scoping assessment of HVAC/WH systems options for future NZEHs to help DOE/BT identify and prioritize alternative approaches for further development. Eleven system concepts with central air distribution ducting and nine multi-zone systems were selected and their annual and peak demand performance estimated for five locations: Atlanta (mixed-humid), Houston (hot-humid), Phoenix (hot-dry), San Francisco (marine), and Chicago (cold). Performance was estimated by simulating the systems using the TRNSYS simulation engine (Solar Energy Laboratory et al. 2006) in two 1800-ft{sup 2} houses--a Building America (BA) benchmark house and a prototype NZEH taken from BEopt results at the take-off (or crossover) point (i.e., a house incorporating those design features such that further progress towards ZEH is through the addition of photovoltaic power sources, as determined by current BEopt analyses conducted by NREL). Results were summarized in a project report, HVAC Equipment Design options for Near-Zero-Energy Homes--A Stage 2 Scoping Assessment, ORNL/TM-2005/194 (Baxter 2005). The 2005 study report describes the HVAC options considered, the ranking criteria used, and the system rankings by priority. In 2006, the two top-ranked options from the 2005 study, air-source and ground-source versions of a centrally ducted integrated heat pump (IHP) system, were subjected to an initial business case study. The IHPs were subjected to a more rigorous hourly-based assessment of their performance potential compared to a baseline suite of equipment of legally minimum efficiency that provided the same heating, cooling, water heating, demand dehumidification, and ventilation services as the IHPs. Results were summarized in a project report, Initial Business Case Analysis of Two Integrated Heat Pump HVAC Systems for Near-Zero-Energy Homes, ORNL/TM-2006/130 (Baxter 2006a). The present report is an update to that document which summarizes results of an analysis of the impact of adding a humidifier to the HVAC system to maintain minimum levels of space relative humidity (RH) in winter. The space RH in winter has direct impact on occupant comfort and on control of dust mites, many types of disease bacteria, and 'dry air' electric shocks. Chapter 8 in ASHRAE's 2005 Handbook of Fundamentals (HOF) suggests a 30% lower limit on RH for indoor temperatures in the range of {approx}68-69F based on comfort (ASHRAE 2005). Table 3 in chapter 9 of the same reference suggests a 30-55% RH range for winter as established by a Canadian study of exposure limits for residential indoor environments (EHD 1987). Harriman, et al (2001) note that for RH levels of 35% or higher, electrostatic shocks are minimized and that dust mites cannot live at RH levels below 40%. They also indicate that many disease bacteria life spans are minimized when space RH is held within a 30-60% range. From the foregoing it is reasonable to assume that a winter space RH range of 30-40% would be an acceptable compromise between comfort considerations and limitation of growth rates for dust mites and many bacteria. In addition it reports som
Baxter, Van D
2006-12-01
The long range strategic goal of the Department of Energy's Building Technologies (DOE/BT) Program is to create, by 2020, technologies and design approaches that enable the construction of net-zero energy homes at low incremental cost (DOE/BT 2005). A net zero energy home (NZEH) is a residential building with greatly reduced needs for energy through efficiency gains, with the balance of energy needs supplied by renewable technologies. While initially focused on new construction, these technologies and design approaches are intended to have application to buildings constructed before 2020 as well resulting in substantial reduction in energy use for all building types and ages. DOE/BT's Emerging Technologies (ET) team is working to support this strategic goal by identifying and developing advanced heating, ventilating, air-conditioning, and water heating (HVAC/WH) technology options applicable to NZEHs. Although the energy efficiency of heating, ventilating, and air-conditioning (HVAC) equipment has increased substantially in recent years, new approaches are needed to continue this trend. Dramatic efficiency improvements are necessary to enable progress toward the NZEH goals, and will require a radical rethinking of opportunities to improve system performance. The large reductions in HVAC energy consumption necessary to support the NZEH goals require a systems-oriented analysis approach that characterizes each element of energy consumption, identifies alternatives, and determines the most cost-effective combination of options. In particular, HVAC equipment must be developed that addresses the range of special needs of NZEH applications in the areas of reduced HVAC and water heating energy use, humidity control, ventilation, uniform comfort, and ease of zoning. In FY05 ORNL conducted an initial Stage 1 (Applied Research) scoping assessment of HVAC/WH systems options for future NZEHs to help DOE/BT identify and prioritize alternative approaches for further development. Eleven system concepts with central air distribution ducting and nine multi-zone systems were selected and their annual and peak demand performance estimated for five locations: Atlanta (mixed-humid), Houston (hot-humid), Phoenix (hot-dry), San Francisco (marine), and Chicago (cold). Performance was estimated by simulating the systems using the TRNSYS simulation engine (Solar Energy Laboratory et al. 2006) in two 1800-ft{sup 2} houses--a Building America (BA) benchmark house and a prototype NZEH taken from BEopt results at the take-off (or crossover) point (i.e., a house incorporating those design features such that further progress towards ZEH is through the addition of photovoltaic power sources, as determined by current BEopt analyses conducted by NREL). Results were summarized in a project report, HVAC Equipment Design options for Near-Zero-Energy Homes--A Stage 2 Scoping Assessment, ORNL/TM-2005/194 (Baxter 2005). The 2005 study report describes the HVAC options considered, the ranking criteria used, and the system rankings by priority. In 2006, the two top-ranked options from the 2005 study, air-source and ground-source versions of an integrated heat pump (IHP) system, were subjected to an initial business case study. The IHPs were subjected to a more rigorous hourly-based assessment of their performance potential compared to a baseline suite of equipment of legally minimum efficiency that provided the same heating, cooling, water heating, demand dehumidification, and ventilation services as the IHPs. Results were summarized in a project report, Initial Business Case Analysis of Two Integrated Heat Pump HVAC Systems for Near-Zero-Energy Homes, ORNL/TM-2006/130 (Baxter 2006). The present report is an update to that document. Its primary purpose is to summarize results of an analysis of the potential of adding an outdoor air economizer operating mode to the IHPs to take advantage of free cooling (using outdoor air to cool the house) whenever possible. In addition it provides some additional detail for an alternative winter water heating/space heating (WH/S
Initial Business Case Analysis of Two Integrated Heat Pump HVAC Systems for Near-Zero-Energy Homes
Baxter, Van D
2006-11-01
The long range strategic goal of the Department of Energy's Building Technologies (DOE/BT) Program is to create, by 2020, technologies and design approaches that enable the construction of net-zero energy homes at low incremental cost (DOE/BT 2005). A net zero energy home (NZEH) is a residential building with greatly reduced needs for energy through efficiency gains, with the balance of energy needs supplied by renewable technologies. While initially focused on new construction, these technologies and design approaches are intended to have application to buildings constructed before 2020 as well resulting in substantial reduction in energy use for all building types and ages. DOE/BT's Emerging Technologies (ET) team is working to support this strategic goal by identifying and developing advanced heating, ventilating, air-conditioning, and water heating (HVAC/WH) technology options applicable to NZEHs. Although the energy efficiency of heating, ventilating, and air-conditioning (HVAC) equipment has increased substantially in recent years, new approaches are needed to continue this trend. Dramatic efficiency improvements are necessary to enable progress toward the NZEH goals, and will require a radical rethinking of opportunities to improve system performance. The large reductions in HVAC energy consumption necessary to support the NZEH goals require a systems-oriented analysis approach that characterizes each element of energy consumption, identifies alternatives, and determines the most cost-effective combination of options. In particular, HVAC equipment must be developed that addresses the range of special needs of NZEH applications in the areas of reduced HVAC and water heating energy use, humidity control, ventilation, uniform comfort, and ease of zoning. In FY05 ORNL conducted an initial Stage 1 (Applied Research) scoping assessment of HVAC/WH systems options for future NZEHs to help DOE/BT identify and prioritize alternative approaches for further development. Eleven system concepts with central air distribution ducting and nine multi-zone systems were selected and their annual and peak demand performance estimated for five locations: Atlanta (mixed-humid), Houston (hot-humid), Phoenix (hot-dry), San Francisco (marine), and Chicago (cold). Performance was estimated by simulating the systems using the TRNSYS simulation engine (Solar Energy Laboratory et al. 2006) in two 1800-ft{sup 2} houses--a Building America (BA) benchmark house and a prototype NZEH taken from BEopt results at the take-off (or crossover) point (i.e., a house incorporating those design features such that further progress towards ZEH is through the addition of photovoltaic power sources, as determined by current BEopt analyses conducted by NREL). Results were summarized in a project report, 'HVAC Equipment Design options for Near-Zero-Energy Homes--A Stage 2 Scoping Assessment,' ORNL/TM-2005/194 (Baxter 2005). The 2005 study report describes the HVAC options considered, the ranking criteria used, and the system rankings by priority. Table 1 summarizes the energy savings potential of the highest scoring options from the 2005 study for all five locations.
Ground-Source Integrated Heat Pump for Near-Zero Energy Houses: Technology Status Report
Murphy, Richard W; Rice, C Keith; Baxter, Van D; Craddick, William G
2007-09-01
The energy service needs of a net-zero-energy house (ZEH) include space heating and cooling, water heating, ventilation, dehumidification, and humidification, depending on the requirements of the specific location. These requirements differ in significant ways from those of current housing. For instance, the most recent DOE buildings energy data (DOE/BED 2007) indicate that on average {approx}43% of residential buildings primary energy use is for space heating and cooling, vs. {approx}12% for water heating (about a 3.6:1 ratio). In contrast, for the particular prototype ZEH structures used in the analyses in this report, that ratio ranges from about 0.3:1 to 1.6:1 depending on location. The high-performance envelope of a ZEH results in much lower space heating and cooling loads relative to current housing and also makes the house sufficiently air-tight to require mechanical ventilation for indoor air quality. These envelope characteristics mean that the space conditioning load will be closer in size to the water heating load, which depends on occupant behavior and thus is not expected to drop by any significant amount because of an improved envelope. In some locations such as the Gulf Coast area, additional dehumidification will almost certainly be required during the shoulder and cooling seasons. In locales with heavy space heating needs, supplemental humidification may be needed because of health concerns or may be desired for improved occupant comfort. The U.S. Department of Energy (DOE) has determined that achieving their ZEH goal will require energy service equipment that can meet these needs while using 50% less energy than current equipment. One promising approach to meeting this requirement is through an integrated heat pump (IHP) - a single system based on heat pumping technology. The energy benefits of an IHP stem from the ability to utilize otherwise wasted energy; for example, heat rejected by the space cooling operation can be used for water heating. With the greater energy savings the cost of the more energy efficient components required for the IHP can be recovered more quickly than if they were applied to individual pieces of equipment to meet each individual energy service need. An IHP can be designed to use either outdoor air or geothermal resources (e.g., ground, ground water, surface water) as the environmental energy source/sink. Based on a scoping study of a wide variety of possible approaches to meeting the energy service needs for a ZEH, DOE selected the IHP concept as the most promising and has supported research directed toward the development of both air- and ground-source versions. This report describes the ground-source IHP (GS-IHP) design and includes the lessons learned and best practices revealed by the research and development (R&D) effort throughout. Salient features of the GS-IHP include a variable-speed rotary compressor incorporating a brushless direct current permanent magnet motor which provides all refrigerant compression, a variable-speed fan for the indoor section, a multiple-speed ground coil circuit pump, and a single-speed pump for water heating operation. Laboratory IHP testing has thus far used R-22 because of the availability of the needed components that use this refrigerant. It is expected that HFC R-410A will be used for any products arising from the IHP concept. Data for a variable-speed compressor that uses R-410A has been incorporated into the DOE/ORNL Mark VI Heat Pump Design Model (HPDM). HPDM was then linked to TRNSYS, a time-series-dependent simulation model capable of determining the energy use of building cooling and heating equipment as applied to a defined house on a sub-hourly basis. This provided a highly flexible design analysis capability for advanced heat pump equipment; however, the program also took a relatively long time to run. This approach was used with the initial prototype design reported in Murphy et al. (2007a) and in the business case analysis of Baxter (2007).