Access
Collection
Office of Scientific & Technical Information Technical Reports
226
Defense Base Closure and Realignment Commission
104
Congressional Research Service Reports
75
Texas Patents
69
Texas Attorney General Opinions
25
Technical Report Archive and Image Library
16
Government Accountability Office Reports
11
Texas Register
10
National Advisory Committee for Aeronautics Collection
9
TRAIL Microcard Collection
6
4 More
States
Decade
Month
Day
Language
544 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
544
next
Water-Sprinkler.
Patent for a water sprinkler with adjustable nozzles and pipes.
Date:
July 5, 1910
Creator:
Alden, James M.
Object Type:
Patent
System:
The Portal to Texas History
Design of An 18 MW Beam Dump for 500 GeV Electron/Positron Beams at An ILC
This article presents a report on the progress made in designing 18 MW water based Beam Dumps for electrons or positrons for an International Linear Collider (ILC). Multi-dimensional technology issues have to be addressed for the successful design of the Beam Dump. They include calculations of power deposition by the high energy electron/positron beam bunch trains, computational fluid dynamic analysis of turbulent water flow, mechanical design, process flow analysis, hydrogen/oxygen recombiners, handling of radioactive 7Be and 3H, design of auxiliary equipment, provisions for accident scenarios, remote window exchanger, radiation shielding, etc. The progress made to date is summarized, the current status, and also the issues still to be addressed.
Date:
July 5, 2012
Creator:
Amann, John; /SLAC; Arnold, Ray; /SLAC; Seryi, Andrei; /SLAC et al.
Object Type:
Article
System:
The UNT Digital Library
Process of Desulfurizing Oil or Distillate
Patent for a process of desulfurizing oil or distillate.
Date:
July 5, 1904
Creator:
Amend, Otto P.
Object Type:
Patent
System:
The Portal to Texas History
Progress on the relativistic klystron two-beam accelerator prototype
The technical challenge for making two-beam accelerators into realizable power sources lies in the creation of the drive beam and in its propagation over long distances through multiple extraction sections. This year we have been constructing a 1.2-kA, l-MeV, electron induction prototype injector as a collaborative effort between LBL and LLNL. The electron source will be a 3.5"-diameter, thermionic, flat-surface cathode with a maximum shroud field stress of approximately 165 kV/cm. Additional design parameters for the injector include a pulse length of over 120-ns flat top (1% energy variation), and a normalized edge emittance of less than 200 {pi}-mm-mr. Planned diagnostics include an isolated cathode with resistive divider for direct measurement of current emission, resistive-wall and magnetic probe current monitors for measuring beam current and centroid position, capacitive probes for measuring A-K gap voltage, an energy spectrometer, and a pepper-pot emittance diagnostic. Details of the injector, beam line, and diagnostics are presented.
Date:
July 5, 1998
Creator:
Anderson, D. E.; Eylon, S.; Henestroza, E.; Houck, T. L.; Lidia, S. M.; Vanecek, D. L. et al.
Object Type:
Article
System:
The UNT Digital Library
Final Report: Imaging of Buried Nanoscale Optically Active Materials
This is a final report covering work done at University of Maryland to develop a Ballistic Electron Emission Luminescence (BEEL) microscope. This technique was intended to examine the carrier transport and photon emission in deeply buried optically-active layers and thereby provide a means for materials science to unmask the detailed consequences of experimentally controllable growth parameters, such as quantum dot size, statistics and orientation, and defect density and charge recombination pathways.
Date:
July 5, 2011
Creator:
Appelbaum, Ian
Object Type:
Report
System:
The UNT Digital Library
The United States and Europe: Current Issues
This report examines the current state of the transatlantic relationship and key issues that may have implications for U.S. interests during the 109th Congress.
Date:
July 5, 2006
Creator:
Archick, Kristin & Morelli, Vince L.
Object Type:
Report
System:
The UNT Digital Library
Measurement of the Spin of the Omega- Hyperon at Babar
A measurement of the spin of the {Omega}{sup -} hyperon produced through the exclusive process {Xi}{sub c}{sup 0} {yields} {Omega}{sup -}K{sup +} is presented using a total integrated luminosity of 116 fb{sup -1} recorded with the BABAR detector at the e{sup +}e{sup -} asymmetric-energy B-Factory at SLAC. Under the assumption that the {Xi}{sub c}{sup 0} has spin 1/2, the angular distribution of the {Lambda} from {Omega}{sup -} {yields} {Lambda}K{sup -} decay is inconsistent with all half-integer {Omega}{sup -} spin values other than 3/2. Lower statistics data for the process {Omega}{sub c}{sup 0} {yields} {Omega}{sup -}{pi}{sup +} from a 230 fb{sup -1} sample are also found to be consistent with {Omega}{sup -} spin 3/2. If the {Xi}{sub c}{sup 0} spin were 3/2, an {Omega}{sup -} spin of 5/2 cannot be excluded.
Date:
July 5, 2006
Creator:
Aubert, B.
Object Type:
Article
System:
The UNT Digital Library
STOCHASTIC COOLING STUDIES IN RHIC, II.
Intra-beam scattering (IBS) is unavoidable for highly charged heavy ions and causes emittance growth during the store for collision physics. A longitudinal bunched beam stochastic cooling system will confine the bunch within the RF bucket increasing the useful luminosity. We describe a series of measurements in RHIC that have been used to verify our understanding of the relevant physics and the cooling system architecture that is being prototyped.
Date:
July 5, 2004
Creator:
BLASKIEWICZ,M. BRENNAN,J. M. WEI,J.
Object Type:
Article
System:
The UNT Digital Library
RF TECHNIQUES FOR IMPROVED LUMINOSITY IN RHIC.
The luminosity of the Relativistic Heavy Ion Collider has improved significantly [1] over the first three physics runs. A number of special rf techniques have been developed to facilitate higher luminosity. The techniques described herein include: an ultra low-noise rf source for the 197 MHz storage rf system, a frequency shift switch-on technique for transferring bunches from the acceleration to the storage system, synchronizing the rings during the energy ramp (including crossing the transition energy) to avoid incidental collisions, installation of dedicated 200 MHZ cavities to provide longitudinal Landau damping on the ramp, and the development of a bunch merging scheme in the Booster to increase the available bunch intensity from the injectors.
Date:
July 5, 2004
Creator:
BRENNAN,J. M. BLASKIEWICZ,J. BUTLER,J. DELONG,J. FISCHER,W. HAYES,T.
Object Type:
Article
System:
The UNT Digital Library
RESULTS OF THE NASA SPACE RADIATION LABORATORY BEAM STUDIES PROGRAM AT BNL.
The NASA Space Radiation Laboratory (NSRL) was constructed in collaboration with NASA for the purpose of performing radiation effect studies for the NASA space program. The NSRL makes use of heavy ions in the range of 0.05 to 3 GeV/n slow extracted from BNL's AGS Booster. The purpose of the NSRL Beam Studies Program is to develop a clear understanding of the beams delivered to the facility, to fully characterize those beams, and to develop new capabilities in the interest of understanding the radiation environment in space. In this report we will describe the first results from this program.
Date:
July 5, 2004
Creator:
BROWN,K. A. AHRENS,L. BEUTTENMULLER,R. H. ET AL.
Object Type:
Article
System:
The UNT Digital Library
RESULTS OF THE FIRST RUN OF THE NASA SPACE RADIATION LABORATORY AT BNL.
The NASA Space Radiation Laboratory (NSRL) was constructed in collaboration with NASA for the purpose of performing radiation effect studies for the NASA space program. The results of commissioning of this new facility were reported in [l]. In this report we will describe the results of the first run. The NSRL is capable of making use of heavy ions in the range of 0.05 to 3 GeV/n slow extracted from BNL's AGS Booster. Many modes of operation were explored during the first run, demonstrating all the capabilities designed into the system. Heavy ion intensities from 100 particles per pulse up to 12 x 10{sup 9} particles per pulse were delivered to a large variety of experiments, providing a dose range up to 70 Gy/min over a 5 x 5 cm{sup 2} area. Results presented will include those related to the production of beams that are highly uniform in both the transverse and longitudinal planes of motion [2].
Date:
July 5, 2004
Creator:
BROWN,K. A. AHRENS,L. BRENNAN,J. M. ET. AL.
Object Type:
Article
System:
The UNT Digital Library
MINI-BUNCHED AND MICRO-BUNCHED SLOW EXTRACTED BEAMS FROM THE AGS.
Brookhaven National Laboratory's (BNLs) Alternating Gradient Synchrotron (AGS) has a long history of providing slow extracted proton beams to fixed target experiments. This program of providing high quality high intensity beams continues with two new experiments currently being designed for operation at the AGS. Both experiments require slow extracted beam, but with an added requirement that those beams be bunched. Bunched beam slow extraction techniques have been developed for both experiments and initial tests have been performed. In this report we describe the beam requirements for the two experiments, and present results of detailed simulations and initial beam tests.
Date:
July 5, 2004
Creator:
BROWN,K. A. AHRENS,L. BRENNAN,J. M. GLENN,J. W. SIVERTZ,M. KOSCIELNIAK,S. R.
Object Type:
Article
System:
The UNT Digital Library
Questions Remain, Litigation Continues, over Military Service by Transgender Individuals
This report discusses the controversy regarding transgender individuals serving in the military, President Trump's memorandums on the subject, and the four lawsuits challenging the President's memorandums.
Date:
July 5, 2018
Creator:
Back, Christine J.
Object Type:
Report
System:
The UNT Digital Library
The Case for a 500 GeV e+e- Linear Collider
Several proposals are being developed around the world for an e+e- linear collider with an initial center of mass energy of 500 GeV. In this paper, we will discuss why a project of this type deserves priority as the next major initiative in high energy physics.
Date:
July 5, 2000
Creator:
Baggers, J.; Baltay, C.; Barker, T.; Barklow, T.; Bauer, U.; Bolton, T. et al.
Object Type:
Report
System:
The UNT Digital Library
Non-Destructive Beam Measurements
In high energy accelerators, especially storage rings, non-destructive beam measurements are highly desirable to minimize the impact on the beam quality. In principle, the non-destructive tools can be either passive detectors like Schottky, or active devices which excite either longitudinal or transverse beam motions for the corresponding measurements. An example of such a device is an ac dipole, a magnet with oscillating field, which can be used to achieve large coherent betatron oscillations. It has been demonstrated in the Brookhaven AGS that by adiabatically exciting the beam, the beam emittance growth due to the filamentation in the phase space can be avoided. This paper overviews both techniques in general. In particular, this paper also presents the beam tune measurement with a Schottky detector, phase advance measurements as well as nonlinear resonance measurements with the ac dipoles in the Brookhaven RHIC.
Date:
July 5, 2004
Creator:
Bai, M.
Object Type:
Article
System:
The UNT Digital Library
Maximum Allowable Concentration for Air-Borne Beta Contamination
The following report discusses an equation derived by which the maximum allowable concentration in the atmosphere of a beta-omitting isotope for which lung damage is the limiting consideration can be calculated.
Date:
July 5, 1951
Creator:
Bailey, J. C. & Henry, H. F.
Object Type:
Report
System:
The UNT Digital Library
Effect of increased electric loads on primary substation equipment in 100-B, C, D, DR, F, and H areas
The loading on the primary transformers which step down the 230 kv transmission voltage to a distribution voltage of 13.8 kv, at 100-B-C, 100-D-DR, 100-F, and 100-H Areas will be increased by the synchronous motors now being installed in those areas under Project CG-558. This report summarizes: The changes in electric loads (both kv and power factor) which will result when the new motors are placed in service and certain older motors are withdrawn from service. Electric loads are tabulated in section 4.0 for each area for present conditions, the planned changes and the post-CG-558 conditions. The reduction of distribution voltage during the starting of individual 4500 hp synchronous motors. Since the synchronous motors will be started across the line as induction motors, the starting current will be high, and at a low power factor. Voltage drops are calculated for the starting of a synchronous motor, with one and then with two transformer banks paralleled. The current-interrupting capacity of switchgear vs. the maximum short-circuit current which could occur with separate transformers and with two primary transformers in parallel.
Date:
July 5, 1956
Creator:
Baker, D. S. & McLenegan, D. W.
Object Type:
Report
System:
The UNT Digital Library
In-Home Performance of Exempt Pellet Stoves in Medford, Oregon.
Pellet stoves that are considered exempt'' operate at an air-to-fuel ratio in excess of 35:1. They therefore qualify for exemption from the emissions certification process. A primary goal of this project was to determine how a sample of such stoves, operated in homes, would perform compared to their certified cousins,'' which were evaluated the previous year. In-home performance data documenting emissions from exempt stoves and net delivered efficiencies was particularly desired. This project evaluated six pellet stoves representing three major brands in Medford, Oregon. There were three Breckwell model P24FS, one Horizon Eclipse, one Horizon Destiny, and one Earth Stove TP40. The stoves were monitored for four week-long intervals in January and February 1991, for a total of 24 tests. Evaluations were conducted for particulate, CO (carbon monoxide) and PAH (polycyclic aromatic hydrocarbon) emissions and net efficiency. Monitoring was conducted using the AWES (automated woodstove emissions sampler) sampling system. A new data logger, developed for this project, was used to control the AWES and record real time data. 22 refs., 17 figs., 6 tabs.
Date:
July 5, 1991
Creator:
Barnett, Stockton G. & Fields, Paula G.
Object Type:
Report
System:
The UNT Digital Library
NATO's 2018 Brussels Summit
This report discusses the meeting of leaders from the North Atlantic Treaty Organization's (NATO's) 29 member states, scheduled to take place on hold a summit at NATO headquarters in Brussels, Belgium, on July 11-12, 2018. Despite the heightened U.S.-European tensions, NATO officials say they expect the allies to announce new NATO initiatives in six main areas at the summit: enhancing collective defense and deterrence, defense spending and burdensharing, countering terrorism, enhancing NATO cooperation with the European Union, and NATO enlargement.
Date:
July 5, 2018
Creator:
Belkin, Paul
Object Type:
Report
System:
The UNT Digital Library
Safety-Razor
Patent for a razor held in place by a guard that protects the user against injury and the razor against dulling. The safety razor is easy to clean and is designed to be "cheaply and easily manufactured" (lines 21-22).
Date:
July 5, 1921
Creator:
Benton, Columbus A.
Object Type:
Patent
System:
The Portal to Texas History
All One-loop Maximally Helicity Violating Gluonic Amplitudes in QCD
We use on-shell recursion relations to compute analytically the one-loop corrections to maximally-helicity-violating n-gluon amplitudes in QCD. The cut-containing parts have been computed previously; our work supplies the remaining rational parts for these amplitudes, which contain two gluons of negative helicity and the rest positive, in an arbitrary color ordering. We also present formulae specific to the six-gluon cases, with helicities (-+-+++) and (-++-++), as well as numerical results for six, seven, and eight gluons. Our construction of the n-gluon amplitudes illustrates the relatively modest growth in complexity of the on-shell-recursive calculation as the number of external legs increases. These amplitudes add to the growing body of one-loop amplitudes known for all n, which are useful for studies of general properties of amplitudes, including their twistor-space structure.
Date:
July 5, 2006
Creator:
Berger, Carola F.; Bern, Zvi; Dixon, Lance J.; Forde, Darren & Kosower, David A.
Object Type:
Report
System:
The UNT Digital Library
Studies on Large Area Sub-Fabric Burns
The detonation of shot one at Bikini Atoll on March 1, 1954, produced a fallout of radioactive ash upon Rongelap Atoll, Marshall Islands. The distribution of the radioactive ash on the islands and in the plants and animals of the area has been studied and evaluated. During the first expedition to Rongelap Atoll on March 26, 1954, biological samples were collected and measurements made of the radiation contamination. On three additional expeditions extensive collections of material were made for this study, the last on January 25-30, 1955. The decline in radioactivity was measured in 1499 samples of fish, invertebrates, land plants, algae, birds, plankton, soil, and water from the Rongelap area. During this study particular emphasis was placed upon evaluation of the radioactivity in food used by the natives. Coconut milk collected on March 26, 1954, contained 1.03 microcuries per kilogram of wet tissue while the coconut meat had 1.16 mu c/kg. By January 25-30, 1955, the level in coconut milk had declined to 0.041 mu c/kg and the meat to 0.036 mu c/ kg. Fish muscle on March 26, 1954, averaged 2.74 mu c/kg and fish liver 204.0 mu c/kg. The decline to January 25-30 was 0.10 mu c/kg …
Date:
July 5, 1957
Creator:
Berkley, K. M. & Pearse, H. E.
Object Type:
Report
System:
The UNT Digital Library
Nuclear Waste Repository Siting: Expedited Procedures for Congressional Approval
None
Date:
July 5, 2002
Creator:
Beth, Richard S.
Object Type:
Report
System:
The UNT Digital Library
Simulation of the fundamental and nonlinear harmonic output from an FEL amplifier with a soft x-ray seed laser
A single-pass, high-gain free-electron laser (FEL) x-ray amplifier was simulated using the 3D, polychromatic simulation code MEDUSA. The seed for the system is a table-top, soft x-ray laser. The simulated fundamental and nonlinear harmonic x-ray output wavelengths are discussed.
Date:
July 5, 2000
Creator:
Biedron, S. G.; Freund, H. P.; Li, Y. & Milton, S. V.
Object Type:
Article
System:
The UNT Digital Library