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128
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31
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22
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15
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Texas State Technical College West Texas Requests for Legislative Appropriations: 2010 and 2011
Report submitted by Texas State Technical College West Texas in Sweetwater to the Texas 81st regular legislature requesting appropriations to fund programming and activities. It includes an overview of the institution's goals, summaries of appropriations requests for fiscal years 2010 and 2011, and supporting documentation.
Date:
October 15, 2008
Creator:
Texas State Technical College West Texas
Object Type:
Book
System:
The Portal to Texas History
Texas Stonewall Democratic Caucus Statewide Board Meeting and Conference Call
A breakdown of the various topics discussed by the Texas Stonewall Democratic Caucus board members.
Date:
October 12, 2008
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Texas Travel Log, October 2008
Newsletter dedicated to traveling in Texas, including information about news, locations, and events of interest to visitors as well as statistics and summaries of travel in the state.
Date:
October 2008
Creator:
Texas. Travel and Information Division.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Text and Multimedia Messaging: Emerging Issues for Congress
This report covers issues for Congress regarding text and multimedia messaging. The increasing use of text and multimedia messaging has raised several policy issue, such as distracted driving, SMS spam, the inability of consumers to disable text messaging, text messaging price fixing, carrier blocking of common short code messages, deceptive and misleading common short code programs, protecting children from inappropriate content on wireless devices.
Date:
October 17, 2008
Creator:
Moloney Figliola, Patricia
Object Type:
Report
System:
The UNT Digital Library
Theoretical Studies in Heterogenous Catalysis: Towards a Rational Design of Novel Catalysts for Hydrodesulfurization and Hydrogen Production
Traditionally, knowledge in heterogeneous catalysis has come through empirical research. Nowadays, there is a clear interest to change this since millions of dollars in products are generated every year in the chemical and petrochemical industries through catalytic processes. To obtain a fundamental knowledge of the factors that determine the activity of heterogeneous catalysts is a challenge for modern science since many of these systems are very complex in nature. In principle, when a molecule adsorbs on the surface of a heterogeneous catalyst, it can interact with a large number of bonding sites. It is known that the chemical properties of these bonding sites depend strongly on the chemical environment around them. Thus, there can be big variations in chemical reactivity when going from one region to another in the surface of a heterogeneous catalyst. A main objective is to understand how the structural and electronic properties of a surface affect the energetics for adsorption processes and the paths for dissociation and chemical reactions. In recent years, advances in instrumentation and experimental procedures have allowed a large series of detailed works on the surface chemistry of heterogeneous catalysts. In many cases, these experimental studies have shown interesting and unique phenomena. Theory …
Date:
October 1, 2008
Creator:
Rodriguez,J.A. & Liu, P.
Object Type:
Book
System:
The UNT Digital Library
Theory and praxis pf map analsys in CHEF part 1: Linear normal form
This memo begins a series which, put together, could comprise the 'CHEF Documentation Project' if there were such a thing. The first--and perhaps only--three will telegraphically describe theory, algorithms, implementation and usage of the normal form map analysis procedures encoded in CHEF's collection of libraries. [1] This one will begin the sequence by explaining the linear manipulations that connect the Jacobian matrix of a symplectic mapping to its normal form. It is a 'Reader's Digest' version of material I wrote in Intermediate Classical Dynamics (ICD) [2] and randomly scattered across technical memos, seminar viewgraphs, and lecture notes for the past quarter century. Much of its content is old, well known, and in some places borders on the trivial.1 Nevertheless, completeness requires their inclusion. The primary objective is the 'fundamental theorem' on normalization written on page 8. I plan to describe the nonlinear procedures in a subsequent memo and devote a third to laying out algorithms and lines of code, connecting them with equations written in the first two. Originally this was to be done in one short paper, but I jettisoned that approach after its first section exceeded a dozen pages. The organization of this document is as follows. A …
Date:
October 1, 2008
Creator:
Michelotti, Leo
Object Type:
Report
System:
The UNT Digital Library
A THERMAL MODEL OF THE IMMOBILIZATION OF LOW-LEVEL RADIOACTIVE WASTE AS GROUT IN CONCRETE VAULTS
Salt solution will be mixed with cement and flyash/slag to form a grout which will be immobilized in above ground concrete vaults. The curing process is exothermic, and a transient thermal model of the pouring and curing process is herein described. A peak temperature limit of 85 C for the curing grout restricts the rate at which it can be poured into a vault. The model is used to optimize the pouring.
Date:
October 27, 2008
Creator:
Shadday, M
Object Type:
Article
System:
The UNT Digital Library
Thermal Neutron Detectors with Discrete Anode Pad Readout
A new two-dimensional thermal neutron detector concept that is capable of very high rates is being developed. It is based on neutron conversion in {sup 3}He in an ionization chamber (unity gas gain) that uses only a cathode and anode plane; there is no additional electrode such as a Frisch grid. The cathode is simply the entrance window, and the anode plane is composed of discrete pads, each with their own readout electronics implemented via application specific integrated circuits. The aim is to provide a new generation of detectors with key characteristics that are superior to existing techniques, such as higher count rate capability, better stability, lower sensitivity to background radiation, and more flexible geometries. Such capabilities will improve the performance of neutron scattering instruments at major neutron user facilities. In this paper, we report on progress with the development of a prototype device that has 48 x 48 anode pads and a sensitive area of 24cm x 24cm.
Date:
October 19, 2008
Creator:
Yu,B. & Schaknowski, N.A., Smith, G.C., DeGeronimo, G., Vernon, E.O.
Object Type:
Article
System:
The UNT Digital Library
[Three students in auditorium chairs]
A photograph of three students attending a UNT Multicultural Center event. They are seated in the rows of a lecture hall auditorium with the desks pulled out. They have papers and pens ready for notes.
Date:
October 2, 2008
Creator:
University of North Texas. Multicultural Center.
Object Type:
Photograph
System:
The UNT Digital Library
The Tiger (San Antonio, Tex.), Vol. 63, No. 2, Ed. 1 Tuesday, October 7, 2008
Monthly student newspaper from St. Philip's College in San Antonio, Texas that includes campus news along with advertising.
Date:
October 7, 2008
Creator:
Christine, Glynis & Agold, Cynthia
Object Type:
Newspaper
System:
The Portal to Texas History
Time-resolved imaging of current-induced domain-wall oscillations
Current-induced domain-wall dynamics is investigated via high-resolution soft x-ray transmission microscopy by a stroboscopic pump-and-probe measurement scheme at a temporal resolution of 200 ps. A 180{sup o} domain wall in a restoring potential of a permalloy microstructure is displaced from its equilibrium position by nanosecond current pulses leading to oscillations with velocities up to 325 m/s. The motion of the wall is described with an analytical model of a rigid domain wall in a nonharmonic potential allowing one to determine the mass of the domain wall. We show that Oersted fields dominate the domain-wall dynamics in our geometry.
Date:
October 7, 2008
Creator:
Bocklage, Lars; Krueger, Benjamin; Eiselt, Rene; Bolte, Markus; Fischer, Peter & Meier, Guido
Object Type:
Article
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 26, No. 40, Ed. 1 Thursday, October 2, 2008
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
October 2, 2008
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 26, No. 41, Ed. 1 Thursday, October 9, 2008
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
October 9, 2008
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 26, No. 42, Ed. 1 Thursday, October 16, 2008
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
October 16, 2008
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 26, No. 43, Ed. 1 Thursday, October 23, 2008
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
October 23, 2008
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 26, No. 44, Ed. 1 Thursday, October 30, 2008
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
October 30, 2008
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Today Cedar Hill (Duncanville, Tex.), Ed. 1 Saturday, October 11, 2008
Weekly newspaper published in Duncanville, Texas that includes local Cedar Hill, state, and national news along with advertising.
Date:
October 11, 2008
Creator:
Morris, Angel Jenkins
Object Type:
Newspaper
System:
The Portal to Texas History
Today Cedar Hill (Duncanville, Tex.), Vol. 43, No. 19, Ed. 1 Thursday, October 2, 2008
Weekly newspaper published in Duncanville, Texas that includes local Cedar Hill, state, and national news along with advertising.
Date:
October 2, 2008
Creator:
Morris, Angel Jenkins
Object Type:
Newspaper
System:
The Portal to Texas History
Today Cedar Hill (Duncanville, Tex.), Vol. 43, No. 20, Ed. 1 Thursday, October 9, 2008
Weekly newspaper published in Duncanville, Texas that includes local Cedar Hill, state, and national news along with advertising.
Date:
October 9, 2008
Creator:
Morris, Angel Jenkins
Object Type:
Newspaper
System:
The Portal to Texas History
Today Cedar Hill (Duncanville, Tex.), Vol. 43, No. 21, Ed. 1 Thursday, October 16, 2008
Weekly newspaper published in Duncanville, Texas that includes local Cedar Hill, state, and national news along with advertising.
Date:
October 16, 2008
Creator:
Morris, Angel Jenkins
Object Type:
Newspaper
System:
The Portal to Texas History
Today Cedar Hill (Duncanville, Tex.), Vol. 43, No. 21, Ed. 1 Thursday, October 23, 2008
Weekly newspaper published in Duncanville, Texas that includes local Cedar Hill, state, and national news along with advertising.
Date:
October 23, 2008
Creator:
Morris, Angel Jenkins
Object Type:
Newspaper
System:
The Portal to Texas History
Today Cedar Hill (Duncanville, Tex.), Vol. 43, No. 22, Ed. 1 Thursday, October 30, 2008
Weekly newspaper published in Duncanville, Texas that includes local Cedar Hill, state, and national news along with advertising.
Date:
October 30, 2008
Creator:
Morris, Angel Jenkins
Object Type:
Newspaper
System:
The Portal to Texas History
Top Jets at the LHC
We investigatethe reconstruction of high pT hadronically-decaying top quarksat the Large Hadron Collider. One of the main challenges in identifying energetictop quarks is that the decay products become increasingly collimated. This reducesthe efficacy of conventional reconstruction methods that exploit the topology of thetop quark decay chain. We focus on the cases where the decay products of the topquark are reconstructed as a single jet, a"top-jet." The most basic"top-tag" methodbased on jet mass measurement is considered in detail. To analyze the feasibility ofthe top-tagging method, both theoretical and experimental aspects of the large QCDjet background contribution are examined. Based on a factorization approach, wederive a simple analytic approximation for the shape of the QCD jet mass spectrum.We observe very good agreement with the Monte Carlo simulation. We consider high pT tt bar production in the Standard Model as an example, and show that our theoretical QCD jet mass distributions can efficiently characterize the background via sideband analyses. We show that with 25 fb-1 of data, our approach allows us to resolve top-jets with pT _> 1 TeV, from the QCD background, and about 1.5 TeV top-jets with 100 fb-1, without relying on b-tagging. To further improve the significancewe consider jet shapes …
Date:
October 6, 2008
Creator:
Almeida, L.G.; Lee, S.J.; Perez, G.; Sung, I. & Virzi, J.
Object Type:
Article
System:
The UNT Digital Library
Top Quark Pair Production Cross Section and Forward-Backward Asymmetry at the Tevatron
We present recent results on top quark pair production cross section and forward-backward asymmetry at the Tevatron. Three new cross section measurements from CDF and one new measurement from DO are presented that utilize the full dataset available. A new DO top cross section combination gives a ttbar production cross section of sigma ttbar = 7.83 + 0.46-0.45 (stat) + 0.64-0.53 (syst) +-0.48 (lumi). The new CDF cross section combination for ttbar production is found to be 7.0 +- 0.3 (stat) +- 0.4 (syst) +- 0.4 (lumi) pb giving a total uncertainty of 9%, very close to the that of the current best theoretical predictions. It is important to measure the top cross section in as many different channels as possible and investigate their compatibility. This is useful as new physics might show up differently in the different channels. Thus any significant discrepancy could be a sign of new physics. Three new measurements of the forward-backward asymmetry are also presented. The two CDF measurements unfold the observed asymmetry back to parton level in order to directly compare the values obtained with theoretical predictions. The DO measurement is not unfolded and therefore does not depend on the specific method used for …
Date:
October 1, 2008
Creator:
Lister, Alison
Object Type:
Article
System:
The UNT Digital Library