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371 Matching Results
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The Open Source Stochastic Building Simulation Tool SLBM and Its Capabilities to Capture Uncertainty of Policymaking in the U.S. Building Sector
The increasing concern about climate change as well as the expected direct environmental economic impacts of global warming will put considerable constraints on the US building sector, which consumes roughly 48percent of the total primary energy, making it the biggest single source of CO2 emissions. It is obvious that the battle against climate change can only be won by considering innovative building approaches and consumer behaviors and bringing new, effective low carbon technologies to the building / consumer market. However, the limited time given to mitigate climate change is unforgiving to misled research and / or policy. This is the reason why Lawrence Berkeley National Lab is working on an open source long range Stochastic Lite Building Module (SLBM) to estimate the impact of different policies and consumer behavior on the market penetration of low carbon building technologies. SLBM is designed to be a fast running, user-friendly model that analysts can readily run and modify in its entirety through a visual interface. The tool is fundamentally an engineering-economic model with technology adoption decisions based on cost and energy performance characteristics of competing technologies. It also incorporates consumer preferences and passive building systems as well as interactions between technologies (such as …
Date:
May 14, 2009
Creator:
Stadler, Michael; Marnay, Chris; Azevedo, Ines Lima; Komiyama, Ryoichi & Lai, Judy
Object Type:
Article
System:
The UNT Digital Library
Pulling of 3 mm diameter AlSb rods by micro-pulling down method
We designed and supplied special crucibles for AlSb material. Thermal insulation and limitation of Sb losses were our first work. The protection of the growth environment was also one of our priority to avoid any pollution of the Fibercryst {mu}PD facility. When this work was achieved, the next step was the calibration of the heating power for these new crucibles. Then, it was the definition of single crystal growth conditions that oriented our research. Following our proposal, many growths attempts were performed. We started from Al & Sb pure powder or from LBNL AlSb crystal as expected. We used different crucibles and different seeds.
Date:
May 14, 2009
Creator:
Bourret-Courchesne, Edith & Perrodin, Didier
Object Type:
Report
System:
The UNT Digital Library
Transition to ELM-free Improved H-mode by Lithium Deposition on NSTX Graphite Divertor Surfaces
Lithium evaporated onto plasma facing components in the NSTX lower divertor has made dramatic improvements in discharge performance. As lithium accumulated, plasmas previously exhibiting robust Type 1 ELMs gradually transformed into discharges with intermittent ELMs and finally into continuously evolving ELM-free discharges. During this sequence, other discharge parameters changed in a complicated manner. As the ELMs disappeared, energy confinement improved and remarkable changes in edge and scrape-off layer plasma properties were observed. These results demonstrate that active modification of plasma surface interactions can preempt large ELMs.
Date:
May 14, 2009
Creator:
Mansfield, D. K.; Kugel, H. W.; Maingi, R.; Bell, M. G.; Bell, R.; Kaita, R. et al.
Object Type:
Report
System:
The UNT Digital Library
Updated Probabilistic and Deterministic Seismic Hazard Analyses for the University of California, Berkeley and Lawrence Berkeley National Laboratory
Probabilistic seismic hazard analyses of ground motion levels having specified frequencies of exceedance (return periods) for UCB campus and LBNL.
Date:
May 14, 2009
Creator:
Wong, Ivan; Thomas, Patricia & Somerville, Paul
Object Type:
Report
System:
The UNT Digital Library
Predictions for Quarkonia Dissociation.
We predict the upper bound on the dissociation temperatures of different quarkonium states.
Date:
May 14, 2007
Creator:
Mocsy, A. & Petreczky, P.
Object Type:
Article
System:
The UNT Digital Library
Reply to Comment on"Isotope and Temperature Effects in Liquid Water Probed by X-ray Absorption and Resonant X-ray Emission Spectroscopy"
In Ref. [1], we present and analyze experimental high resolution x-ray emission spectra (XES) of liquid water which exhibit a splitting of the 1b1 line into two components. We also suggest a qualitative model to explain the experimental spectra which, even though tentative (as clearly stated in the summary of Ref. [1]), is able to explain ALL available experimental data. In the preceding Comment, Pettersson et al. [3]claim that a spectrum with two similarly sharp 1b1 features both from a dissociated product (d2) and from the intact molecule (d1) would be"unphysical and unsubstantiated" since"the path connecting initial and final structure" is not taken into account. In the meantime, we have collected new data [2], which further support and strengthen our model.
Date:
May 14, 2008
Creator:
Heske, C.; Zharnikov, M.; Weinhardt, L.; Blum, M.; Weigand, M.; Zubavichus, Y. et al.
Object Type:
Article
System:
The UNT Digital Library
Domain wall dynamics in a spin-reorientation transition system Au/Co/Au
We report measurements of domain wall dynamics in an ultrathin Au/Co/Au system that exhibits a spin reorientation phase transition as a function of temperature.The domain walls exhibit cooperative motion throughout the temperature range of 150 - 300 K. The decay times were found to exhibit a maximum at the transition temperature. The slowdown has been explained as due to formation of a double well in the energy landscape by the different competing interactions. Our results show that the complex, slow dynamics can provide a more fundamental understanding of magnetic phase transitions.
Date:
May 14, 2009
Creator:
Roy, Sujoy; Seu, Keoki; Turner, Joshua J.; Park, Sungkyun; Kevan, Steve & Falco, Charles M.
Object Type:
Article
System:
The UNT Digital Library
FIRST NEUTRINO POINT-SOURCE RESULTS FROM THE 22-STRING ICECUBE DETECTOR
We present new results of searches for neutrino point sources in the northern sky, using data recorded in 2007-08 with 22 strings of the IceCube detector (approximately one-fourth of the planned total) and 275.7 days of livetime. The final sample of 5114 neutrino candidate events agrees well with the expected background of atmospheric muon neutrinos and a small component of atmospheric muons. No evidence of a point source is found, with the most significant excess of events in the sky at 2.2 {sigma} after accounting for all trials. The average upper limit over the northern sky for point sources of muon-neutrinos with E{sup -2} spectrum is E{sup 2} {Phi}{sub {nu}{sub {mu}}} < 1.4 x 10{sup -1} TeV cm{sup -2}s{sup -1}, in the energy range from 3 TeV to 3 PeV, improving the previous best average upper limit by the AMANDA-II detector by a factor of two.
Date:
May 14, 2009
Creator:
Collaboration, IceCube & Klein, Spencer
Object Type:
Article
System:
The UNT Digital Library
Photoinitiated Processes in Small Hydrides Final Technical Report DE-FG02-04ER15509
This grant was in effect for a quite long time: 1984-2008. This period saw a broad range of research activities transpire in my group, and these enlisted the participation of many students, postdoctorals, and visitors. The earliest participants have since enjoyed full careers: faculty members here and abroad, government laboratories, successful entrepreneurs, and so on. Some have even retired! Consequently, during the past few months I have repeatedly asked myself: how can a coherent, readable report be prepared that covers so long a period of time and so varied a collection of projects? On the one hand, the work has evolved — a sensible progression of experimental techniques and strategies, as well as a parallel deepening of our theoretical understanding. On the other hand, there is a distinctive¬ness to many of the projects that enables them to be arranged into groups. In the end a compromise was struck. Areas and topics that received the most focused attention are identified. Our main contributions and how they relate to the field of chemical dynamics, in general, are organized according to these groups. Publications are listed but not explained per se, as this would produce a manifestly unreadable document. They are all available …
Date:
May 14, 2009
Creator:
Wittig, Curt
Object Type:
Report
System:
The UNT Digital Library
CP Violation in B Decays
None
Date:
May 14, 2007
Creator:
Biasini, M. & U., /Perugia
Object Type:
Article
System:
The UNT Digital Library
Recent BaBar Results in Charm And Charmonium Spectroscopy
None
Date:
May 14, 2007
Creator:
Pelizaeus, M. & /Ruhr U., Bochum
Object Type:
Article
System:
The UNT Digital Library
Effect of angular momentum on Valence-Quark Helicity Distributions
None
Date:
May 14, 2007
Creator:
Avakian, Harut; Brodsky, Stanley J.; Deur, Alexandre & Yuan, Feng
Object Type:
Article
System:
The UNT Digital Library
Hadron Spectroscopy at BaBar
None
Date:
May 14, 2007
Creator:
Tosi, S. & /Genoa U. /INFN, Genoa
Object Type:
Article
System:
The UNT Digital Library
Studies of EGRET Sources with a Novel Image Restoration Technique
None
Date:
May 14, 2007
Creator:
Tajima, Hiroyasu; Finazzi, Stefano; Cohen-Tanugi, Johann; Chiang, James & Kamae, Tuneyoshi
Object Type:
Article
System:
The UNT Digital Library
Studies of Cosmic Rays with GeV Gamma Rays
None
Date:
May 14, 2007
Creator:
Tajima, Hiroyasu; Kamae, Tuneyoshi; Finazzi, Stefano; Cohen-Tanugi, Johann & Chiang, James
Object Type:
Article
System:
The UNT Digital Library
On Tenth Order Central Spatial Schemes
This paper explores the performance of the tenth-order central spatial scheme and derives the accompanying energy-norm stable summation-by-parts (SBP) boundary operators. The objective is to employ the resulting tenth-order spatial differencing with the stable SBP boundary operators as a base scheme in the framework of adaptive numerical dissipation control in high order multistep filter schemes of Yee et al. (1999), Yee and Sj{umlt o}green (2002, 2005, 2006, 2007), and Sj{umlt o}green and Yee (2004). These schemes were designed for multiscale turbulence flows including strong shock waves and combustion.
Date:
May 14, 2007
Creator:
Sjogreen, B & Yee, H C
Object Type:
Article
System:
The UNT Digital Library
HADRON MULTIPLICITIES AT THE LHC .
We present the predictions for hadron multiplicities in pp, pA and AA collisions at the LHC based on our approach to the Color Glass Condensate.
Date:
May 14, 2007
Creator:
Kharzeev, D.; Levin, E. & Nardi, M.
Object Type:
Article
System:
The UNT Digital Library
The Wylie News (Wylie, Tex.), Vol. 55, No. 51, Ed. 1 Wednesday, May 14, 2003
Weekly newspaper from Wylie, Texas that includes local, state and national news along with advertising.
Date:
May 14, 2003
Creator:
Engbrock, Chad B.
Object Type:
Newspaper
System:
The Portal to Texas History
FIFTY-FIVE GALLON DRUM STANDARD STUDY
Fifty-five gallon drums are routinely used within the U.S. for the storage and eventual disposal of fissionable materials as Transuranic or low-level waste. To support these operations, criticality safety evaluations are required. A questionnaire was developed and sent to selected Endusers at Hanford, Idaho National Laboratory, Lawrence Livermore National Laboratory, Oak Ridge and the Savannah River Site to solicit current practices. This questionnaire was used to gather information on the kinds of fissionable materials packaged into drums, the models used in performing criticality safety evaluations in support of operations involving these drums, and the limits and controls established for the handling and storage of these drums. The completed questionnaires were reviewed and clarifications solicited through individual communications with each Enduser to obtain more complete and consistent responses. All five sites have similar drum operations involving thousands to tens of thousands of fissionable material waste drums. The primary sources for these drums are legacy (prior operations) and decontamination and decommissioning wastes at all sites except Lawrence Livermore National Laboratory. The results from this survey and our review are discussed in this paper.
Date:
May 14, 2009
Creator:
RJ, PUIGH
Object Type:
Article
System:
The UNT Digital Library
Planning meeting to form the CMSN Team: Building a unified computational model for the resonant X-ray scattering of strongly correlated materials
The planning meeting was held May 21-23 2008 at Argonne National Laboratory (ANL). The purpose of the meeting was to establish a network on building computational model for resonant elastic and inelastic x-ray scattering. This course of action was recommended by program officer Dale Koelling after the initial submission of a proposal for a Computational Materials Science Network to Basic Energy Sciences. The meeting consisted of talks and discussion. At the end of the meeting three subgroups were formed. After the successful formation of the team, a new proposal was written which was funded by BES. Since this was a planning meeting there were no proceedings. The program and titles of talks are given below.
Date:
May 14, 2008
Creator:
Veenendaal, M. van
Object Type:
Text
System:
The UNT Digital Library
Rains County Leader (Emory, Tex.), Vol. 114, No. 48, Ed. 1 Tuesday, May 14, 2002
Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date:
May 14, 2002
Creator:
Hill, Earl Clyde, Jr.
Object Type:
Newspaper
System:
The Portal to Texas History
Seminole Sentinel (Seminole, Tex.), Vol. 97, No. 62, Ed. 1 Sunday, May 14, 2006
Semiweekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.
Date:
May 14, 2006
Creator:
Wright, Dustin
Object Type:
Newspaper
System:
The Portal to Texas History
[News Clip: Victoria Bodies 02]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 14, 2003
Creator:
NBC 5 (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Victoria Bodies 01]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
May 14, 2003
Creator:
NBC 5 (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library