نتایج جستجو برای: ge models
تعداد نتایج: 926619 فیلتر نتایج به سال:
a r t i c l e i n f o The formation of voids in ion-implanted Ge was studied as a function of ion implantation energy and dose. (001) Ge substrates were self-implanted at energies of 20–300 keV to doses of 1.0 × 10 13 –1.0 × 10 17 cm − 2. Transmission electron microscopy revealed clusters of voids just below the surface for implant energies ≤ 120 keV at a dose of 2.0 × 10 15 cm − 2 and complete...
Environmental impacts caused by transgene flow from genetically engineered (GE) crops to their wild relatives mediated by pollination are longstanding biosafety concerns worldwide. Mathematical modeling provides a useful tool for estimating frequencies of pollen-mediated gene flow (PMGF) that are critical for assessing such environmental impacts. However, most PMGF models are impractical for th...
We have applied extended X-ray absorption fine structure (EXAFS) analyses and ab initio molecular dynamics (AIMD) simulations to study the structure of Ag-doped (up to 42%) Ge1Sb2Te4 alloys. The computer models are consistent with EXAFS experiments, and reveal that the Ge environment is significantly modified by Ag doping, whereas those of Sb and Te are barely affected (except for high Ag conce...
We report new results from the Cryogenic Dark Matter Search (CDMS II) at the Soudan Underground Laboratory. Two towers, each consisting of six detectors, were operated for 74.5 live days, giving spectrum-weighted exposures of 34 (12) kg d for the Ge (Si) targets after cuts, averaged over recoil energies 10-100 keV for a weakly interacting massive particle (WIMP) mass of 60 GeV/c2. A blind analy...
Recent work on genetic association studies suggests that much of the heritable variation in complex traits is unexplained, which indicates a need for using more biologically meaningful modeling approaches and appropriate statistical methods. In this study, we propose a biological framework and a corresponding statistical model incorporating multilevel biological measures, and illustrate it in t...
The authors have been developed a high-precision and high-performance numerical simulation algorithm for gas-liquid two-phase flows to simulate the gas entrainment (GE) phenomena in a large-sized sodium-cooled fast reactor in Japan (JSFR). In the simulation algorithm, the piecewise linear interface reconstruction (PLIC) algorithm is employed for the interface-tracking and physics-basis simulati...
AIM To investigate the effects of Lizhong Tang, a traditional Chinese medicine formula, on gastrointestinal motility in mice. METHODS The in vivo effects of Lizhong Tang on GI motility were investigated by measuring the intestinal transit rates (ITRs) and gastric emptying (GE) values in normal mice and in mice with experimentally induced GI motility dysfunction (GMD). RESULTS In normal ICR ...
Molecular dynamics simulations are used to examine the effect of interfacial species mixing on the thermal conductivity of Stillinger-Weber Si /Si0.7Ge0.3 and Si/Ge superlattices at a temperature of 500 K. The thermal conductivity of Si /Si0.7Ge0.3 superlattices is predicted to not depend on the interfacial species mixing and to increase with increasing period length. This period length depende...
The adsorption of ethylene on the Ge(001) surface is investigated by the first principles density-functional calculations. Our total energy calculations and reaction path investigations clarify the relative importance of various adsorption configurations at 0.5 and 1.0 monolayer adsorption coverage. The results are consistent with the experimental data in the literature in that both the di-σ an...
Abstract—This paper presents the design parameters for a thin film 3J InGaP/GaAs/Ge solar cell with a simulated maximum efficiency of 32.11% using Tcad Silvaco. Design parameters include the doping concentration, molar fraction, layers’ thickness and tunnel junction characteristics. An initial dual junction InGaP/GaAs model of a previous published heterojunction cell was simulated in Tcad Silva...
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