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Filters: Collection: "ir_uspace"
| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 226 |
 | Morse, Michael David | Electronic structure of the 4d transition metal carbides: dispersed fluorescence spectroscopy of MoC, RuC, and PdC | Dispersed fluorescence studies of the diatomic molecules MoC, RuC, and PdC are reported. New states identified in MoC and RuC are the [...]2?112?1, 3,1?2 states and the [...]2? 312?1, 1?2 state, respectively. Five states re observed by dispersed fluorescence in PdC. The ground state is found to be [... | 2001 | |
| 227 |
 | Chapman, David S. | Borehole temperatures and climate change: ground temperature change in south India over the past two centuries | Variations in surface g round temperature (SGT) at the Earth's surface diffuse downward in a predictable way causing systematic perturbations to the subsurface temperature field. The pioneering study of Lachenbruch and Marsh all [1986] in Alaska demonstrated that present-day borehole temperature-dep... | 2012-01-01 | |
| 228 |
 | Tasdizen, Tolga; Whitaker, Ross T. | Improving undersampled MRI reconstruction using non-local means | Obtaining high quality images in MR is desirable not only for accurate visual assessment but also for automatic processing to extract clinically relevant parameters. Filtering-based techniques are extremely useful for reducing artifacts caused due to undersampling of k-space (to reduce scan time... | 2010 | |
| 229 |
 | Miller, Jan D. | Experimental evaluation of a mineral exposure model for crushed copper ores | Copper mineral inclusions dispersed in crushed ore particles have a certain size distribution (grain-size distribution). For efficient heap leaching processes, the crushing plant should be designed and operated to crush the ore to an appropriate particle-size distribution so that copper mineral grai... | Grains; particles; distribution | 2006 |
| 230 |
 | Wu, Yong-Shi | Explicit solutions of the Bethe ansatz equations for Bloch electrons in a magnetic field | For Bloch electrons in a magnetic field, explicit solutions are obtained at the center of the spectrum for the Bethe ansatz equations of Wiegmann and Zabrodin. When the magnetic flux per plaquette is 1/(Q with Q an odd integer, distribution of the roots of the Bethe ansatz equation is uniform except... | Bloch electron; Magnetic flux | 1994-08 |
| 231 |
 | Ailion, David Charles | Effect of the translational diffusion mechanism on the low-field NMR spin-lattice relaxation time in the rotating reference frame: calculation of order parameter | The effect of the translational-diffusion mechanism on the low-field NMR spin-lattice relaxation time in the rotating reference frame is calculated for simple cubic, body-centered cubic, and face-centered cubic lattices. The results of these calculations suggest a new method for determining the pref... | NMR; Nuclear magnetic resonance; Lattices; Relaxation time | 1968 |
| 232 |
 | Liu, Feng | Magnetism and local order II: self-consistent cluster calculations | The effect of the local environment on the magnetic moment and its convergence to bulk value has been studied self-consistently by using a molecular-cluster model within the framework of spin-density-functional theory. We show that the magnetic moment of the central atom in clusters of 43 Ni atoms a... | Local order; Magnetic moment; Molecular-cluster model; Spin-density-functional theory | 1989-07 |
| 233 |
 | Smith, A. Gordon; Singleton, J. Robinson | Lifestyle intervention for pre-diabetic neuropathy. | OBJECTIVE: The purpose of this study was to evaluate intraepidermal nerve fiber density (IENFD) as a sensitive measure of neuropathy change in patients with neuropathy associated with impaired glucose tolerance (IGT) receiving lifestyle intervention based on that used in the Diabetes Prevention Prog... | Older people; Biopsy; Blood Pressure; Body Mass Index; Cholesterol; Diabetic Diet | 2006-06-29 |
| 234 |
 | Gerig, Guido | Brain volumes in psychotic youth with schizophrenia and mood disorders | Background: We sought to test the hypothesis that deficits in grey matter volume are characteristic of psychotic youth with early-onset schizophrenia-spectrum disorders (EOSS) but not of psychotic youth with early-onset mood disorders (EOMD). Methods: We used magnetic resonance imaging to examine br... | 2010-01-01 | |
| 235 |
 | Garrett, Timothy J. | Novel basis for interpreting recent acceleration of anthropogenic carbon dioxide emissions | This paper presents a simple thermodynamic model for understanding economic and carbon dioxide emissions growth. | Thermodynamics; economics; climate; growth | 2008 |
| 236 |
 | Williams, Clayton C. | Evidence of internal electric fields in GaInP2 by scanning capacitance and near-field scanning optical microscopy | GaInP2 is studied in cross section with the scanning capacitance and near-field scanning optical microscope. Our study shows significant differences in the electronic and optical properties between ordered single- and two-variant GaInP2. In single-variant samples, spatially uniform capacitance signa... | Atomic ordering; transmission electron diffraction; near-field scanning optical microscope | 1997 |
| 237 |
 | Gopalakrishnan, Ganesh | hopCP: A concurrent hardware description language | hopCP is a language for the specification, simulation, and synthesis of hardware systems. hopCP captures the behavior of a hardware system by specifying the causal relationships between actions that the system can perform. No specific timing discipline is implied by a hopCP specification. Hence, hop... | hopCP; Hardware systems | 1991 |
| 238 |
 | Mishchenko, Eugene; Raikh, Mikhail E. | Planar array of semiconducting nanotubes in an external electric field: collective screening and polarizability | We study theoretically the charge separation in a planar array of semiconducting nanotubes (NTs) of length, 2h, placed in an external electric field, F, parallel to their axes. By employing the conformal mapping, we find analytically the exact distribution of the induced charge density for the arb... | Planar array | 2006-12 |
| 239 |
 | Stringfellow, Gerald B. | Surface photoabsorption study of the effect of V/III ratio on ordering in GaInP | Cu-Pt ordering is widely observed in Ga0.5In0.5P layers grown by organometallic vapor phase epitaxy. The degree of order is a strong function of the input partial pressure of the phosphorus precursor, i.e., the V/III ratio, during growth. By observing the surface structure using in situ surface p... | Degree of order; Photoluminescence; Transmission electron microscopy | 1996 |
| 240 |
 | Mastrangelo, Carlos H. | Batch fabrication of flowable colorimetric pressure sensing particles via surface micromachining | The batch fabrication and test of artificial optical resonator slab-type micro particles (14 μm diameter, 0.7 μm gap) is presented as a means to map absolute pressure within microscopic environments. The pressure-sensing particles consist of a semi-transparent elastic polysilicon shell enclosi... | 2010 | |
| 241 |
 | Kirby, Robert Michael II | On the use of adjoint-based sensitivity estimates to control local mesh refinement | The goal of efficient and robust error control, through local mesh adaptation in the computational solution of partial differential equations, is predicated on the ability to identify in an a posteriori way those localized regions whose refinement will lead to the most significant reductions in the ... | Sensitivity; Adaptivity; Error estimation; hp-finite elements; Discrete adjoint; Mesh refinement | 2009 |
| 242 |
 | Morelli, Robert | Formal aspects of anonymity | We present a formal definition of anonymity in the context of concurrent processes. The definition is given in category theoretic terms. Moreover, the concept of a split cofibration is shown to both simplify the analysis of anonymity as well as to increase the framework's expressiveness. Because ... | Anonymity; Concurrent processes | 2002-01-15 |
| 243 |
 | Wu, Yong-Shi | Characterization of one-dimensional Luttinger liquids in terms of fractional exclusion statistics | We develop a bosonization approach to study the low temperature properties of one-dimensional gas of particles obeying fractional exclusion statistics (FES). It is shown that such ideal gas reproduces the low-energy excitations and asymptotic exponents of a one-component Luttinger liquid (with no in... | 2001-06 | |
| 244 |
 | Organick, Elliott I. | Transformation of Ada program units into silicon (Fourth Semiannual technical report 83 Apr 1 - 83 Nov 15) | This report, augmented with several appended papers and supplementary reports describes the most recent six months of work on the research project, "Transformation of Ada Programs into Silicon". This report is also the last of the series to be rendered under the current contact. | Transformation; Ada program units; Silicon | 1983 |
| 245 |
 | Freire, Juliana | Automatically extracting form labels | We describe a machine-learning-based approach for extracting attribute labels from Web form interfaces. Having these labels is a requirement for several techniques that attempt to retrieve and integrate data that reside in online databases and that are hidden behind form interfaces, including schema... | Learning classifiers | 2008 |
| 246 |
 | Ailion, David Charles | Nuclear magnetic resonance in random fields: cluster formation and local dynamics of a deuteron glass | NMR data show that the deuteron "pseudo spin-glass" transition in Rbi- X(ND4)*D2P04 is not just a simple kinetic slowing down process but is characterized by a gradual condensation of randomly polarized clusters as expected if we deal with a percolation transition in eigenstate space. The results pr... | NMR; Nuclear magnetic resonance; Random fields; Spin lattice | 1986 |
| 247 |
 | Myers, Chris J. | Automatic abstraction for synthesis and verification of deterministic timed systems | This paper presents a new approach for synthesis and verification of asynchronous circuits by using abstraction. It attacks the state explosion problem by avoiding the generation of a flat state space for the whole design. Instead, it breaks the design into sub-blocks and conducts synthesis and veri... | 2000 | |
| 248 |
 | Jorgensen, Erik | Mutations in β-spectrin disrupt axon outgrowth and sarcomere structure | B-Spectrin is a major component of the membrane skeleton, a structure found at the plasma membrane of most animal cells. B-Spectrin and the membrane skeleton have been proposed to stabilize cell membranes, generate cell polarity, or localize specific membrane proteins. We demonstrate that the Caen... | 2000 | |
| 249 |
 | Stang, Peter J. | Studies in the cycloproparene series: cycloaddition reactions of diarylmethylidenecycloproparenes | Diarylmethylidenecyclopropanaphthalenes 4b-d add diphenylisobenzofuran (DPIBF) and α-pyrone across the exocyclic double bond to give ring expanded products 11b-d and 13b-d that result from subsequent relief of ring strain in the non-isolable spirocyclic intermediates 10 and 12, respectively. The be... | Cycloproparene series; Cycloaddition; Diarylmethylidenecycloproparenes; Ab initio calculations; Strained aromatics; Acetylenic-iodonium salts; Crystal structures; Cyclobutanes, Diels-Alder cycloaddition; norcaradienes | 2001 |
| 250 |
 | Painter, James S. | Radioptimization - Goal based rendering | This paper presents a method for designing the illumination in an environment using optimization techniques applied to a radiosity based image synthesis system. An optimization of lighting parameters is performed based on user specified constraints and objectives for the illumination of t h e envir... | Radioptimization; Illumination; Optimization; Lighting parameters; Radiosity based image synthesis | 1993 |