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547 Matching Results
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The Altus Times (Altus, Okla.), Vol. 111, No. 278, Ed. 1 Sunday, August 2, 2009
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 2, 2009
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Baytown Sun (Baytown, Tex.), Vol. 89, No. 214, Ed. 1 Sunday, August 2, 2009
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
August 2, 2009
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
Effect of Te Inclusions on Internal Electric Field of CdMnTe Gamma-Ray Detectors
We studied two separate as-grown CdMnTe crystals by Infrared (IR) microscopy and Pockels effect imaging, and then developed an algorithm to analyze and visualize the electric field within the crystals’ bulk. In one of the two crystals the size and distribution of inclusions within the bulk promised to be more favorable in terms of efficiency as a detector crystal. However, the Te inclusions were arranged in characteristic ‘planes’. Pockels imaging revealed an accumulation of charges in the region of these planes. We demonstrated that the planes induced stress within the bulk of the crystal that accumulated charges, thereby causing non-uniformity of the internal electric field and degrading the detector’s performance.
Date:
August 2, 2009
Creator:
Babalola, O.S.; Bolotnikov, A.; Egarievwe, S.; Hossain, A.; Burger, A. & James, R.
Object Type:
Article
System:
The UNT Digital Library
Electric Field Distribution of Cadmium Zinc Telluride (CZT)
Cadmium Zinc Telluride (CZT) is attracting increasing interest with its promise as a room-temperature nuclear-radiation-detector material. The distribution of the electric field in CZT detectors substantially affects their detection performance. At Brookhaven National Laboratory (BNL), we employed a synchrotron X-Ray mapping technique and a Pockels-effect measurement system to investigate this distribution in different detectors. Here, we report our latest experimental results with three detectors of different width/height ratios. A decrease in this ratio aggravates the non-uniform distribution of electric field, and focuses it on the central volume. Raising the bias voltage effectively can minimize such non-uniformity of the electric field distribution. The position of the maximum electric field is independent of the bias voltage; the difference between its maximum- and minimum-intensity of electric field increases with the applied bias voltage.
Date:
August 2, 2009
Creator:
Yang, G.; Bolotnikov, A.; Camarda, G. S.; Cui, Y.; Hossain, A.; Kim, K. et al.
Object Type:
Article
System:
The UNT Digital Library
Estuarine Habitats for Juvenile Salmon in the Tidally-Influenced Lower Columbia River and Estuary : Reporting Period September 15, 2008 through May 31, 2009.
This work focuses on the numerical modeling of Columbia River estuarine circulation and associated modeling-supported analyses conducted as an integral part of a multi-disciplinary and multi-institutional effort led by NOAA's Northwest Fisheries Science Center. The overall effort is aimed at: (1) retrospective analyses to reconstruct historic bathymetric features and assess effects of climate and river flow on the extent and distribution of shallow water, wetland and tidal-floodplain habitats; (2) computer simulations using a 3-dimensional numerical model to evaluate the sensitivity of salmon rearing opportunities to various historical modifications affecting the estuary (including channel changes, flow regulation, and diking of tidal wetlands and floodplains); (3) observational studies of present and historic food web sources supporting selected life histories of juvenile salmon as determined by stable isotope, microchemistry, and parasitology techniques; and (4) experimental studies in Grays River in collaboration with Columbia River Estuary Study Taskforce (CREST) and the Columbia Land Trust (CLT) to assess effects of multiple tidal wetland restoration projects on various life histories of juvenile salmon and to compare responses to observed habitat-use patterns in the mainstem estuary. From the above observations, experiments, and additional modeling simulations, the effort will also (5) examine effects of alternative flow-management and habitat-restoration …
Date:
August 2, 2009
Creator:
Baptista, António M.
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Sunday, August 2, 2009
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 2, 2009
Creator:
Pittman, Jerry & Wray, Kelly
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The NSLS-II Multilayer Laue Lens Deposition System
The NSLS-II[1] program has a requirement for an unprecedented level of x-ray nanofocusing and has selected the wedged multilayer Laue lens[2,3] (MLL) as the optic of choice to meet this goal. In order to fabricate the MLL a deposition system is required that is capable of depositing depth-graded and laterally-graded multilayers with precise thickness control over many thousands of layers, with total film growth in one run up to 100m thick or greater. This machine design expounds on the positive features of a rotary deposition system[4] constructed previously for MLLs and will contain multiple stationary, horizontally-oriented magnetron sources where a transport will move a substrate back and forth in a linear fashion over shaped apertures at well-defined velocities to affect a multilayer coating.
Date:
August 2, 2009
Creator:
Conley, R.; Bouet, N.; Biancarosa, J.; Shen, Q.; Boas, L.; Feraca, J. et al.
Object Type:
Article
System:
The UNT Digital Library
The Panola Watchman (Carthage, Tex.), Vol. 137, No. 61, Ed. 1 Sunday, August 2, 2009
Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date:
August 2, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 127, No. 62, Ed. 1 Sunday, August 2, 2009
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
August 2, 2009
Creator:
Reddell, Valerie
Object Type:
Newspaper
System:
The Portal to Texas History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 94, No. 257, Ed. 1 Sunday, August 2, 2009
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 2, 2009
Creator:
Shance, Brenda
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Simulation of Electric Field in Semi Insulating Au/CdTe/Au Detector under Flux
We report our simulations on the profile of the electric field in semi insulating CdTe and CdZnTe with Au contacts under radiation flux. The type of the space charge and electric field distribution in the Au/CdTe/Au structure is at high fluxes result of a combined influence of charge formed due to band bending at the electrodes and from photo generated carriers, which are trapped at deep levels. Simultaneous solution of drift-diffusion and Poisson equations is used for the calculation. We show, that the space charge originating from trapped photo-carriers starts to dominate at fluxes 10{sup 15}-10{sup 16}cm{sup -2}s{sup -1}, when the influence of contacts starts to be negligible.
Date:
August 2, 2009
Creator:
Franc, J.; James, R.; Grill, R.; Kubat, J.; Belas, E.; Hoschl, P. et al.
Object Type:
Article
System:
The UNT Digital Library
Sweetwater Reporter (Sweetwater, Tex.), Vol. 111, No. 219, Ed. 1 Sunday, August 2, 2009
Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date:
August 2, 2009
Creator:
Rodriguez, Tatiana
Object Type:
Newspaper
System:
The Portal to Texas History
The Bastrop Advertiser (Bastrop, Tex.), Vol. 155, No. 46, Ed. 1 Saturday, August 2, 2008
Semi-weekly newspaper from Bastrop, Texas that includes local, state and national news along with advertising.
Date:
August 2, 2008
Creator:
Hagerty, Terry
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 88, No. 214, Ed. 1 Saturday, August 2, 2008
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
August 2, 2008
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Design and Construction of the MICE Spectrometer Solenoids
The purpose of the MICE spectrometer solenoid is to provide a uniform field for a scintillating fiber tracker. The uniform field is produced by a long center coil and two short end coils. Together, they produce 4T field with a uniformity of better than 1% over a detector region of 1000 mm long and 300 mm in diameter. Throughout most of the detector region, the field uniformity is better than 0.3%. In addition to the uniform field coils, we have two match coils. These two coils can be independently adjusted to match uniform field region to the focusing coil field. The coil package length is 2544 mm. We present the spectrometer solenoid cold mass design, the powering and quench protection circuits, and the cryogenic cooling system based on using three cryocoolers with re-condensers.
Date:
August 2, 2008
Creator:
Wang, Bert; Wahrer, Bob; Taylor, Clyde; Xu, L.; Chen, J. Y.; Wang, M. et al.
Object Type:
Article
System:
The UNT Digital Library
[Funeral Program for Ruth Ann Tucker, August 2, 2008]
Funeral program for Mrs. Ruth Ann Tucker, born February 3, 1935 and died July 24, 2008. The funeral was held August 2, 2008 at Greater Corinth Baptist Church, officiated by Dr. O. C. Jones. Funeral arrangements were made through the Lewis Funeral Home, and she was buried in First Memorial Park Cemetery in Von Ormy, Texas.
Date:
August 2, 2008
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History
Magnetic and Cryogenic Design of the MICE Coupling Solenoid Magnet System
The Muon Ionization Cooling Experiment (MICE) will demonstrate ionization cooling in a short section of a realistic cooling channel using a muon beam at Rutherford Appleton Laboratory in the UK. The coupling magnet is a superconducting solenoid mounted around four 201MHz RF cavities, which produces magnetic field up to 2.6 T on the magnet centerline to keep muons within the iris of RF cavities windows. The coupling coil with inner radius of 750mm, length of 285mm and thickness of 102.5mm will be cooled by a pair of 1.5 W at 4.2 K small coolers. This paper will introduce the updated engineering design of the coupling magnet made by ICST in China. The detailed analyses on magnetic fields, stresses induced during the processes of winding, cool down and charging, and cold mass support assembly are presented as well.
Date:
August 2, 2008
Creator:
Wang, Li; Xu, FengYu; Wu, Hong; Liu, XiaoKum; Li, LanKai; Guo, XingLong et al.
Object Type:
Article
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 116, No. 151, Ed. 1 Saturday, August 2, 2008
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 2, 2008
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Preliminary Test Results for the MICE Spectrometer Superconducting Solenoids
This report describes the MICE spectrometer solenoids as built. Each magnet consists of five superconducting coils. Two coils are used to tune the beam going from or to the MICE spectrometer from the rest of the MICE cooling channel. Three spectrometer coils (two end coils and a long center coil) are used to create a uniform 4 T field (to {+-}0.3 percent) over a length of 1.0 m within a diameter of 0.3 m. The three-coil spectrometer set is connected in series. The two end coils use small power supplies to tune the uniform field region where the scintillating fiber tracker is located. This paper will present the results of the preliminary testing of the first spectrometer solenoid.
Date:
August 2, 2008
Creator:
Virostek, Steve P.; Green, Michael A; Li, Derun; Zisman, Michael S.; Wang, S. T.; Wahrer, R. et al.
Object Type:
Article
System:
The UNT Digital Library
Quench Protection for the MICE Cooling Channel Coupling Magnet
This paper describes the passive quench protection system selected for the muon ionization cooling experiment (MICE) cooling channel coupling magnet. The MICE coupling magnet will employ two methods of quench protection simultaneously. The most important method of quench protection in the coupling magnet is the subdivision of the coil. Cold diodes and resistors are put across the subdivisions to reduce both the voltage to ground and the hot-spot temperature. The second method of quench protection is quench-back from the mandrel, which speeds up the spread of the normal region within the coils. Combining quench back with coil subdivision will reduce the hot spot temperature further. This paper explores the effect on the quench process of the number of coil sub-divisions, the quench propagation velocity within the magnet, and the shunt resistance.
Date:
August 2, 2008
Creator:
Guo, Xing Long; Xu, Feng Yu; Wang, Li; Green, Michael A.; Pan, Heng; Wu, Hong et al.
Object Type:
Article
System:
The UNT Digital Library
Adequate Yearly Progress (AYP): Growth Models Under the No Child Left Behind Act
This report highlights the adequate yearly progress (AYP) concept of the No Child Left Behind Act of 2001. The AYP is the standard of eligibility for grants, of which states must implement AYP policies in all public schools and local education agencies (LEAs). The standard primarily utilizes state test scores to measure the school's eligibility for funding, schools that do not meet AYP standard for two or more consecutive years face consequences. Finally, the report tackles the idea of growth models in reference to the AYP.
Date:
August 2, 2007
Creator:
Riddle, Wayne C.
Object Type:
Report
System:
The UNT Digital Library
Adequate Yearly Progress (AYP): Implementation of the No Child Left Behind Act
This report is intended to provide an overview of the Adequate Yearly Process (AYP) concept and several related issues, a description of the AYP provisions of the No Child Left Behind Act, and an analysis of the implementation of these provisions by the U.S. Department of Education (ED) and the states. It will be updated when major administrative actions are taken by ED, or substantial new data on state implementation become available.
Date:
August 2, 2007
Creator:
Riddle, Wayne C.
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 132, No. 10, Ed. 1 Thursday, August 2, 2007
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
August 2, 2007
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Altus Times (Altus, Okla.), Vol. 109, No. 54, Ed. 1 Thursday, August 2, 2007
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 2, 2007
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History