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Altus Times (Altus, Okla.), Vol. 105, No. 263, Ed. 1 Monday, January 19, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 19, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Sun (Alvin, Tex.), Vol. 114, No. 6, Ed. 1 Monday, January 19, 2004
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
January 19, 2004
Creator:
Schwind, Jim & Looby, Edward
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 82, No. 48, Ed. 1 Monday, January 19, 2004
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 19, 2004
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Edge preserving smoothing and segmentation of 4-D images via transversely isotropic scale-space processing and fingerprint analysis
Enhancements are described for an approach that unifies edge preserving smoothing with segmentation of time sequences of volumetric images, based on differential edge detection at multiple spatial and temporal scales. Potential applications of these 4-D methods include segmentation of respiratory gated positron emission tomography (PET) transmission images to improve accuracy of attenuation correction for imaging heart and lung lesions, and segmentation of dynamic cardiac single photon emission computed tomography (SPECT) images to facilitate unbiased estimation of time-activity curves and kinetic parameters for left ventricular volumes of interest. Improved segmentation of lung surfaces in simulated respiratory gated cardiac PET transmission images is achieved with a 4-D edge detection operator composed of edge preserving 1-D operators applied in various spatial and temporal directions. Smoothing along the axis of a 1-D operator is driven by structure separation seen in the scale-space fingerprint, rather than by image contrast. Spurious noise structures are reduced with use of small-scale isotropic smoothing in directions transverse to the 1-D operator axis. Analytic expressions are obtained for directional derivatives of the smoothed, edge preserved image, and the expressions are used to compose a 4-D operator that detects edges as zero-crossings in the second derivative in the direction of the …
Date:
January 19, 2004
Creator:
Reutter, Bryan W.; Algazi, V. Ralph; Gullberg, Grant T. & Huesman, Ronald H.
Object Type:
Article
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, January 19, 2004
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 19, 2004
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Oral History Interview with Robert Mullen, January 19, 2004
The National Museum of the Pacific War presents an interview with Robert Mullen. Mullen joined the Army Air Forces in January of 1943. He served as a nose gunner aboard a B-17 with the 2nd Bomb Group, 429th Bomb Squadron, 15th Air Force. He deployed to Italy in June of 1944, and completed 35 missions, including one over marshalling yards in Salzburg, Austria. Mullen received the Distinguished Flying Cross.
Date:
January 19, 2004
Creator:
Mullen, Robert
Object Type:
Sound
System:
The Portal to Texas History
Performance of the Keck Observatory Adaptive Optics System
In this paper, the adaptive optics (AO) system at the W.M. Keck Observatory is characterized. The authors calculate the error budget of the Keck AO system operating in natural guide star mode with a near infrared imaging camera. By modeling the control loops and recording residual centroids, the measurement noise and band-width errors are obtained. The error budget is consistent with the images obtained. Results of sky performance tests are presented: the AO system is shown to deliver images with average Strehl ratios of up to 0.37 at 1.58 {micro}m using a bright guide star and 0.19 for a magnitude 12 star.
Date:
January 19, 2004
Creator:
van Dam, M. A.; Mignant, D. L. & Macintosh, B. A.
Object Type:
Article
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 88, No. 111, Ed. 1 Monday, January 19, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 19, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
A study of surface film formation on LiNi0.8Co0.15Al0.05O2 cathodes u sing attenuated total reflection infrared spectroscopy
The surface films formed on commercial LiNi0.8Co0.15Al0.05O2 cathodes (ATD Gen2) charged from 3.75V to 4.2V vs. Li/Li+ in EC:DEC - 1M LiPF6 were analyzed using ex-situ Fourier transform infrared spectroscopy (FTIR) with the attenuated total reflection (ATR) technique. A surface layer of Li2CO3 is present on the virgin cathode, probably from reaction of the active material with air during the cathode preparation procedure. The Li2CO3 layer disappeared even after soaking in the electrolyte, indicating that the layer dissolved into the electrolyte possibly even before potential cycling of the electrode. IR features only from the binder (PVdF) and a trace of polyamide from the Al current collector were observed on the surfaces of cathodes charged to below 4.2 V, i.e., no surface species from electrolyte oxidation. Some new IR features were, however, found on the cathode charged to 4.2 V and higher. An electrolyte oxidation product was observed that appeared to contain dicarbonyl anhydride and (poly)ester functionalities. The reaction appears to be an indirect electrochemical oxidation with overcharging (removal of > 0.6 Li ions) destabilizing oxygen in the oxide lattice resulting in oxygen transfer to the solvent molecules.
Date:
January 19, 2004
Creator:
Song, S.-W.; Zhuang, G.V. & Ross Jr., P.N.
Object Type:
Article
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 128, No. 37, Ed. 1 Thursday, February 19, 2004
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
February 19, 2004
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 105, No. 290, Ed. 1 Thursday, February 19, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 19, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Analysis of High-n Dielectronic Rydberg Satellites in the Spectra of Na-like ZnXX and Mg-like ZnXIX
We have observed spectra from highly charged zinc ions in a variety of laser-produced plasmas. Spectral features that are Na- and Mg-like satellites to high-n Rydberg transitions in the Ne-like ZnXXI spectrum are analyzed and modeled. Identifications and analysis are made by comparison with highly accurate atomic structure calculations and steady state collisional-radiative models. Each observed ZnXX and ZnXIX feature comprises up to {approx} 2 dozen individual transitions, these transitions are excited principally by dielectronic recombination through autoionizing levels in Na- and Mg-like Zn{sup 19+} Zn{sup 18+}. We find these satellites to be ubiquitous in laser-produced plasmas formed by lasers with pulse lengths that span four orders of magnitude, from 1 ps to {approx} 10 ns. The diagnostic potential of these Rydberg satellite lines is demonstrated.
Date:
February 19, 2004
Creator:
Petrocelli, G; Vinogradov, V I; Magunov, A I; Flora, F; Martellucci, S; Matafonov, A P et al.
Object Type:
Article
System:
The UNT Digital Library
Analysis of S. 1709, 108th Congress: the Security and Freedom Ensured Act of 2003 (SAFE Act)
From Summary: This report is a section by section explanation of the effects of S. 1709, the SAFE Act, on current law.
Date:
February 19, 2004
Creator:
Velez Pollack, Estela I.
Object Type:
Report
System:
The UNT Digital Library
Anomalous Skin Effect for Anisotropic Electron Velocity Distribution Function
The anomalous skin effect in a plasma with a highly anisotropic electron velocity distribution function (EVDF) is very different from skin effect in a plasma with the isotropic EVDF. An analytical solution was derived for the electric field penetrated into plasma with the EVDF described as a Maxwellian with two temperatures Tx >> Tz, where x is the direction along the plasma boundary and z is the direction perpendicular to the plasma boundary. The skin layer was found to consist of two distinctive regions of width of order nTx/w and nTz/w, where nTx,z/w = (Tx,z/m)1/2 is the thermal electron velocity and w is the incident wave frequency.
Date:
February 19, 2004
Creator:
Kaganovich, Igor; Startsev, Edward & Shvets, Gennady
Object Type:
Report
System:
The UNT Digital Library
Archer County News (Archer City, Tex.), No. 8, Ed. 1 Thursday, February 19, 2004
Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date:
February 19, 2004
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 82, No. 79, Ed. 1 Thursday, February 19, 2004
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 19, 2004
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Budget Reconciliation Process: The Senate's "Byrd" Rule
Reconciliation is a procedure under the Congressional Budget Act of 1974 by which Congress implements budget resolution policies affecting mainly permanent spending and revenue programs. The principal focus in the reconciliation process has been deficit reduction, but in recent years reconciliation has encompassed revenue reduction generally and spending increases in selected program areas. The Byrd rule provides six definitions of what constitutes extraneous matter for purposes of the rule (and several exceptions thereto), but the term is generally described as covering provisions unrelated to achieving the goals of the reconciliation instructions.
Date:
February 19, 2004
Creator:
Keith, Robert
Object Type:
Report
System:
The UNT Digital Library
The Canadian Record (Canadian, Tex.), Vol. 114, No. 8, Ed. 1 Thursday, February 19, 2004
Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date:
February 19, 2004
Creator:
Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History
CO2 SELECTIVE CERAMIC MEMBRANE FOR WATER-GAS SHIFT REACTION WITH CONCOMITANT RECOVERY OF CO2
Two process schemes have been investigated by us for the use of hydrotalcites we prepared as CO{sub 2} adsorbents to enhance water gas shift (WGS) reaction: Case I involves the adsorption enhanced WGS packed bed reactor and Case II involves the adsorption enhanced WGS membrane reactor. Both cases will achieve the same objective as the hydrotalcite membrane reactor: i.e., improving the WGS reactor efficiency via the concomitant removal of CO{sub 2} for sequestration. In this report a detailed investigation of the design characteristics and performance of Case II, termed the Hybrid Adsorbent-Membrane Reactor (HAMR), is presented. The HAMR system includes a packed-bed catalytic membrane reactor (hydrogen selective) coupling the WGS reaction (in a porous hydrogen selective membrane) with CO{sub 2} removal with an adsorbent in the permeate side. The reactor characteristics have been investigated for a range of permeance and selectivity relevant to the aforementioned application. The HAMR system shows enhanced CO conversion, hydrogen yield, and product purity, and provides good promise for reducing the hostile operating conditions of conventional WGS reactors, and for meeting the CO{sub 2} sequestration objective. In the next quarterly report we will present the simulation result for Case I as well as the progress on …
Date:
February 19, 2004
Creator:
Liu, Paul K. T.
Object Type:
Report
System:
The UNT Digital Library
Comanche Chief (Comanche, Tex.), No. 42, Ed. 1 Thursday, February 19, 2004
Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date:
February 19, 2004
Creator:
Wilkerson, James C., III
Object Type:
Newspaper
System:
The Portal to Texas History
A Comprehensive Study of Surface Chemistry for Application to Engine NOx Aftertreatment
This work focuses on developing a scientific understanding of the processes associated with NO{sub x} trap operation. NO{sub x} traps are the most advanced technology for achieving future emissions standards with diesel engines. Successful development of NO{sub x} traps will allow widespread use of diesel engines in light-duty vehicles, reducing oil imports by as much as 60%. Diesel engines have a high efficiency and low maintenance that makes them the ideal choice for transportation applications. Use of diesel engines in all light-duty vehicles would reduce oil consumption in the USA by 30% and oil imports by 60%, considerably improving our energy security. For heavy trucks, there is no viable alternative to diesel engines. Only diesel engines can provide the necessary high efficiency and long life. These benefits are offset by high emission of pollutants. Diesel engines have high emissions of NO{sub x} and particulate matter. Over the last 20 years, EPA has been reducing allowable emissions from diesel engines, and NO{sub x} emissions are scheduled to be cut by a factor of 10 over the next 7 years. The target NO{sub x} emissions for year 2010 is 0.20 g/hp-hr. This value is well below 1 g/hp-hr, which has been identified …
Date:
February 19, 2004
Creator:
Aceves, S M; Piggot, T; Pitz, W; Mundy, C; Kuo, W & Havstad, M
Object Type:
Report
System:
The UNT Digital Library
Cooper Review (Cooper, Tex.), Vol. 124, No. 8, Ed. 1 Thursday, February 19, 2004
Weekly newspaper from Cooper, Texas that includes local, state, and national news along with advertising.
Date:
February 19, 2004
Creator:
Pinson, Beth
Object Type:
Newspaper
System:
The Portal to Texas History
Design, fabrication, and characterization of high-efficiency extreme ultraviolet diffusers
As the development of extreme ultraviolet (EUV) lithography progresses, interest grows in the extension of traditional optical components to the EUV regime. The strong absorption of EUV by most materials and its extremely short wavelength, however, makes it very difficult to implement many components that are commonplace in the longer wavelength regimes. One such example is the diffuser often implemented with ordinary ground glass in the visible light regime. Here we demonstrate the fabrication of reflective EUV diffusers with high efficiency within a controllable bandwidth. Using these techniques we have fabricated diffusers with efficiencies exceeding 10% within a moderate angular single-sided bandwidth of approximately 0.06 radians.
Date:
February 19, 2004
Creator:
Naulleau, Patrick P.; Liddle, J. Alexander; Salmassi, Farhad; Anderson, Erik H. & Gullikson, Eric M.
Object Type:
Article
System:
The UNT Digital Library
The Dictyostelium discoideum cellulose synthase: Structure/function analysis and identification of interacting proteins
OAK-B135 The major accomplishments of this project were: (1) the initial characterization of dcsA, the gene for the putative catalytic subunit of cellulose synthase in the cellular slime mold Dictyostelium discoideum; (2) the detection of a developmentally regulated event (unidentified, but perhaps a protein modification or association with a protein partner) that is required for cellulose synthase activity (i.e., the dcsA product is necessary, but not sufficient for cellulose synthesis); (3) the continued exploration of the developmental context of cellulose synthesis and DcsA; (4) the isolation of a GFP-DcsA-expressing strain (work in progress); and (5) the identification of Dictyostelium homologues for plant genes whose products play roles in cellulose biosynthesis. Although our progress was slow and many of our results negative, we did develop a number of promising avenues of investigation that can serve as the foundation for future projects.
Date:
February 19, 2004
Creator:
Blanton, Richard L.
Object Type:
Report
System:
The UNT Digital Library