Collection
Congressional Research Service Reports
485
Office of Scientific & Technical Information Technical Reports
400
Texas Laws and Resolutions Archive
239
Government Accountability Office Reports
94
Texas State Publications
51
Texas Register
17
Federal Register
14
Texas Attorney General Opinions
13
End of Term Publications
7
Texas House of Representatives Journals
5
4 More
Country
States
Decade
Month
Day
Language
1,322 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
1,322
next
In-situ spectro-microscopy on organic films: Mn-Phthalocyanine on Ag(100)
Metal phthalocyanines are attracting significant attention, owing to their potential for applications in chemical sensors, solar cells and organic magnets. As the electronic properties of molecular films are determined by their crystallinity and molecular packing, the optimization of film quality is important for improving the performance of organic devices. Here, we present the results of in situ low-energy electron microscopy / photoemission electron microscopy (LEEM/PEEM) studies of incorporation-limited growth [1] of manganese-phthalocyanine (MnPc) on Ag(100) surfaces. MnPc thin films were grown on both, bulk Ag(100) surface and thin Ag(100)/Fe(100) films, where substrate spin-polarized electronic states can be modified through tuning the thickness of the Ag film [2]. We also discuss the electronic structure and magnetic ordering in MnPc thin films, investigated by angle- and spin-resolved photoemission spectroscopy.
Date:
August 18, 2013
Creator:
A., Al-Mahboob; Vescovo, E. & Sadowski, J.T.
Object Type:
Article
System:
The UNT Digital Library
INTERIM REPORT--INDEPENDENT VERIFICATION SURVEY OF SECTION 3, SURVEY UNITS 1, 4 AND 5 EXCAVATED SURFACES, WHITTAKER CORPORATION, REYNOLDS INDUSTRIAL PARK, TRANSFER, PENNSYLVANIA DCN: 5002-SR-04-0"
At Pennsylvania Department of Environmental Protection's request, ORAU's IEAV program conducted verification surveys on the excavated surfaces of Section 3, SUs 1, 4, and 5 at the Whittaker site on March 13 and 14, 2013. The survey activities included visual inspections, gamma radiation surface scans, gamma activity measurements, and soil sampling activities. Verification activities also included the review and assessment of the licensee�s project documentation and methodologies. Surface scans identified four areas of elevated direct gamma radiation distinguishable from background; one area within SUs 1 and 4 and two areas within SU5. One area within SU5 was remediated by removing a golf ball size piece of slag while ORAU staff was onsite. With the exception of the golf ball size piece of slag within SU5, a review of the ESL Section 3 EXS data packages for SUs 1, 4, and 5 indicated that these locations of elevated gamma radiation were also identified by the ESL gamma scans and that ESL personnel performed additional investigations and soil sampling within these areas. The investigative results indicated that the areas met the release criteria.
Date:
April 18, 2013
Creator:
ADAMS, WADE C
Object Type:
Report
System:
The UNT Digital Library
A Search for Dark Matter in Events with One Jet and Missing Transverse Energy in pp-bar Collisions at sqrt(s) = 1.96 TeV
None
Date:
January 18, 2013
Creator:
Aaltonen, T.; Alvarez Gonzalez, B.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A. et al.
Object Type:
Article
System:
The UNT Digital Library
Fermi-LAT Study of Gamma-Ray Emission in the Direction of Supernova Remnant W49B
None
Date:
June 18, 2013
Creator:
Abdo, A. A.; Ackermann, M.; Ajello, M.; Baldini, L.; Ballet, J.; Barbiellini, G. et al.
Object Type:
Article
System:
The UNT Digital Library
Final Pantex Report - 2006 [Phase 1 plan for assessment of Former Workers at the Pantex Facility]
The purpose of this project was to develop a Phase 1 plan for assessment of Former Workers at the Pantex Facility in Amarillo, TX and to determine the suitability to start a medical surveillance program among former workers for this site.
Date:
July 18, 2013
Creator:
Abdo, Ronna
Object Type:
Report
System:
The UNT Digital Library
Response of NSTX Liquid Lithium divertor to High Heat Loads
Samples of the NSTX Liquid Lithium Divertor (LLD) with and without an evaporative Li coating were directly exposed to a neutral beam ex-situ at a power of ~1.5 MW/m2 for 1-3 seconds. Measurements of front face and bulk sample temperature were obtained. Predictions of temperature evolution were derived from a 1D heat flux model. No macroscopic damage occurred when the "bare" sample was exposed to the beam but microscopic changes to the surface were observed. The Li-coated sample developed a lithium hydroxide (LiOH) coating, which did not change even when the front face temperature exceeded the pure Li melting point. These results are consistent with the lack of damage to the LLD surface and imply that heating alone may not expose pure liquid Li if the melting point of surface impurities is not exceeded. This suggests that flow and heat are needed for future PFCs requiring a liquid Li surface. __________________________________________________
Date:
July 18, 2012
Creator:
Abrams, Tyler; Kallman, J; Kaitaa, R; Foley, E L; Grayd, T K; Kugel, H et al.
Object Type:
Article
System:
The UNT Digital Library
Searches for Cosmic-Ray Electron Anisotropies with the Fermi Large Area Telescope
None
Date:
June 18, 2013
Creator:
Ackermann, M.; /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept.; Ajello, M.; /Stanford U., HEPL /KIPAC, Menlo Park /Stanford U., Phys. Dept.; Atwood, W.B.; /UC, Santa Cruz et al.
Object Type:
Article
System:
The UNT Digital Library
U.S.-EU Trade and Economic Relations: Key Policy Issues for the 112th Congress
U.S. and European private stakeholders, concerned about slow growth, job creation, and increased competition from emerging economies, have urged Brussels and Washington to strengthen transatlantic trade and economic ties by reducing or eliminating remaining trade barriers and by cooperating more closely in addressing global economic challenges. A select group of these issues are examined in this report.
Date:
January 18, 2012
Creator:
Ahearn, Raymond J.
Object Type:
Report
System:
The UNT Digital Library
Export-Import Bank Reauthorization Debate
This report discusses the ongoing debate regarding the Export-Import Bank of the United States, a federal government corporation which is the the official export credit agency (ECA) of the U.S. Government. The bank's statutory charter expires on September 30, 2014, meaning that its authority to obligations generally would cease and a wind-down of operations would be required. The report gives four possible scenarios for approaches Congress could take in regards to approaching the bank's future authorization status.
Date:
August 18, 2014
Creator:
Akhtar, Shayerah Ilias
Object Type:
Report
System:
The UNT Digital Library
Tune Evaluation From Phased BPM Turn-By-Turn Data
In fast ramping synchrotrons like the Fermilab Booster the conventional methods of betatron tune evaluation from the turn-by-turn data may not work due to rapid changes of the tunes (sometimes in a course of a few dozens of turns) and a high level of noise. We propose a technique based on phasing of signals from a large number of BPMs which significantly increases the signal to noise ratio. Implementation of the method in the Fermilab Booster control system is described and some measurement results are presented.
Date:
May 18, 2010
Creator:
Alexahin, Y.; Gianfelice-Wendt, E. & Marsh, W.
Object Type:
Article
System:
The UNT Digital Library
Stuff Moving Through Other Stuff - For Energy
Representing the Understanding Charge Separation and Transfer at Interfaces in Energy Materials (EFRC:CST), this document is one of the entries in the Ten Hundred and One Word Challenge. As part of the challenge, the 46 Energy Frontier Research Centers were invited to represent their science in images, cartoons, photos, words and original paintings, but any descriptions or words could only use the 1000 most commonly used words in the English language, with the addition of one word important to each of the EFRCs and the mission of DOE energy. Understanding Charge Separation and Transfer at Interfaces in Energy Materials (EFRC:CST), is focused on advancing the understanding and design of nanostructured molecular materials for organic photovoltaic (OPV) and electrical energy storage (EES) applications.
Date:
July 18, 2013
Creator:
All EFRC effort,
Object Type:
Text
System:
The UNT Digital Library
The evolution of ion charge states in cathodic vacuum arc plasmas: a review
Cathodic vacuum arc plasmas are known to contain multiply charged ions. 20 years after “Pressure Ionization: its role in metal vapour vacuum arc plasmas and ion sources” appeared in vol. 1 of Plasma Sources Science and Technology, it is a great opportunity to re-visit the issue of pressure ionization, a non-ideal plasma effect, and put it in perspective to the many other factors that influence observable charge state distributions, such as the role of the cathode material, the path in the density-temperature phase diagram, the “noise” in vacuum arc plasma as described by a fractal model approach, the effects of external magnetic fields and charge exchange collisions with neutrals. A much more complex image of the vacuum arc plasma emerges putting decades of experimentation and modeling in perspective.
Date:
December 18, 2011
Creator:
Anders, Andre
Object Type:
Article
System:
The UNT Digital Library
The SEMATECH Berkeley MET: extending EUV learning to 16-nm half pitch
Several high-performing resists identified in the past two years have been exposed at the 0.3-numerical-aperture (NA) SEMATECH Berkeley Microfield Exposure Tool (BMET) with an engineered dipole illumination optimized for 18-nm half pitch. Five chemically amplified platforms were found to support 20-nm dense patterning at a film thickness of approximately 45 nm. At 19-nm half pitch, however, scattered bridging kept all of these resists from cleanly resolving larger areas of dense features. At 18-nm half pitch, none of the resists were are able to cleanly resolve a single line within a bulk pattern. With this same illumination a directly imageable metal oxide hardmask showed excellent performance from 22-nm half pitch to 17-nm half pitch, and good performance at 16-nm half pitch, closely following the predicted aerial image contrast. This indicates that observed limitations of the chemically amplified resists are indeed coming from the resist and not from a shortcoming of the exposure tool. The imageable hardmask was also exposed using a Pseudo Phase-Shift-Mask technique and achieved clean printing of 15-nm half pitch lines and modulation all the way down to the theoretical 12.5-nm resolution limit of the 0.3-NA SEMATECH BMET.
Date:
March 18, 2011
Creator:
Anderson, Christopher N.; Baclea-an, Lorie Mae; Denham, Paul E.; George, Simi; Goldberg, Kenneth A.; Jones, Michael et al.
Object Type:
Article
System:
The UNT Digital Library
Benefits to the U.S. from Physicists Working at Accelerators Overseas
None
Date:
December 18, 2013
Creator:
Anderson, Jacob; Brock, Raymond; Gershtein, Yuri; Hadley, Nicholas; Harrison, Michael; Narain, Meenakshi et al.
Object Type:
Article
System:
The UNT Digital Library
Magnetic Measurement Results of the LCLS Undulator Quadrupoles
This note details the magnetic measurements and the magnetic center fiducializations that were performed on all of the thirty-six LCLS undulator quadrupoles. Temperature rise, standardization reproducibility, vacuum chamber effects and magnetic center reproducibility measurements are also presented. The Linac Coherent Light Source (LCLS) undulator beam line has 33 girders, each with a LCLS undulator quadrupole which focuses and steers the beam through the beam line. Each quadrupole has main quadrupole coils, as well as separate horizontal and vertical trim coils. Thirty-six quadrupoles, thirty-three installed and three spares were, manufactured for the LCLS undulator system and all were measured to confirm that they met requirement specifications for integrated gradient, harmonics and for magnetic center shifts after current changes. The horizontal and vertical dipole trims of each quadrupole were similarly characterized. Each quadrupole was also fiducialized to its magnetic center. All characterizing measurements on the undulator quads were performed with their mirror plates on and after a standardization of three cycles from -6 to +6 to -6 amps. Since the undulator quadrupoles could be used as a focusing or defocusing magnet depending on their location, all quadrupoles were characterized as focusing and as defocusing quadrupoles. A subset of the undulator quadrupoles were …
Date:
August 18, 2011
Creator:
Anderson, Scott; Caban, Keith; Nuhn, Heinz-Dieter; Reese, Ed & Wolf, Zachary
Object Type:
Report
System:
The UNT Digital Library
The Strategic Petroleum Reserve: Authorization, Operation, and Drawdown Policy
This report looks at the history, purpose, and current status of the Strategic Petroleum Reserve.
Date:
June 18, 2012
Creator:
Andrews, Anthony & Pirog, Robert
Object Type:
Report
System:
The UNT Digital Library
A Framework for Incorporating General Domain Knowledge into Latent Dirichlet Allocation using First-Order Logic
Topic models have been used successfully for a variety of problems, often in the form of application-specific extensions of the basic Latent Dirichlet Allocation (LDA) model. Because deriving these new models in order to encode domain knowledge can be difficult and time-consuming, we propose the Fold-all model, which allows the user to specify general domain knowledge in First-Order Logic (FOL). However, combining topic modeling with FOL can result in inference problems beyond the capabilities of existing techniques. We have therefore developed a scalable inference technique using stochastic gradient descent which may also be useful to the Markov Logic Network (MLN) research community. Experiments demonstrate the expressive power of Fold-all, as well as the scalability of our proposed inference method.
Date:
January 18, 2011
Creator:
Andrzejewski, D.; Zhu, X.; Craven, M. & Recht, B.
Object Type:
Article
System:
The UNT Digital Library
Angelo State University Annual Financial Report: 2011
Annual financial report of Angelo State University for fiscal year 2012 providing statements of assets, revenues, expenses, bond information, and other relevant data.
Date:
November 18, 2011
Creator:
Angelo State University
Object Type:
Report
System:
The Portal to Texas History
LIFE Delivery Plan
None
Date:
April 18, 2011
Creator:
Anklam, T M
Object Type:
Report
System:
The UNT Digital Library
The Impact of Camera Optical Alignments on Weak Lensing Measures for the Dark Energy Survey
None
Date:
March 18, 2013
Creator:
Antonik, Michelle L.; Bacon, David J.; Bridle, Sarah; Doel, Peter; Brooks, David; Worswick, Sue et al.
Object Type:
Article
System:
The UNT Digital Library
Year 4 Report Multiplex Assay Development for Detection of Potential Bioterrorism Agents in Food Matrices
None
Date:
June 18, 2013
Creator:
Arani, P N
Object Type:
Report
System:
The UNT Digital Library
Northern Ireland: The Peace Process
For years, the British and Irish governments sought to facilitate a peaceful settlement to the conflict in Northern Ireland. This report provides a brief overview of the continuing peace talks and efforts in Northern Ireland, including the deal reached in February 2010 between the Democratic Unionist Party (DUP) and Sinn Fein, the political wing of the Irish Republican Army (IRA). The report also discusses the United States' active support of the Northern Ireland peace process, including the future of the International Fund for Ireland (IFI).
Date:
February 18, 2011
Creator:
Archick, Kristin
Object Type:
Report
System:
The UNT Digital Library
Northern Ireland: The Peace Process
For years, the British and Irish governments sought to facilitate a peaceful settlement to the conflict in Northern Ireland. This report provides a brief overview of the continuing peace talks and efforts in Northern Ireland, including the deal reached in February 2010 between the Democratic Unionist Party (DUP) and Sinn Fein, the political wing of the Irish Republican Army (IRA). The report also discusses the United States' active support of the Northern Ireland peace process, including the future of the International Fund for Ireland (IFI).
Date:
February 18, 2011
Creator:
Archick, Kristin
Object Type:
Report
System:
The UNT Digital Library
U.S.-EU Cooperation Against Terrorism
This report examines the evolution of counterterrorism cooperation between the United States and the European Union (EU), particularly since the September 11, 2001 terrorist attacks. It includes a discussion of U.S.-EU cooperation progress and ongoing challenges, as well as perspectives and issues for Congress.
Date:
July 18, 2011
Creator:
Archick, Kristin
Object Type:
Report
System:
The UNT Digital Library