Materials Literature
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A method is described to approximately determine the potential in the channel of a graphene device as a function of the voltages applied to the gates, once the profile at a reference bias point is known. This technique, which avoids the self-consistent solution of the electrostatic and transport equations, is adopted…
In this study, the sulfur tolerance and hydrothermal stability of Cu-KNO3/ZrO2 catalysts in catalytic diesel soot oxidation were investigated. Supported alkaline nitrate catalysts have shown excellent activity for soot oxidation in the presence of O2 or NO/O2. High-temperature water vapor treatments do not affect the…
MB Katz, ME Twigg, SI Maximenko, ND Bassim, NA Mahadik, GG Jernigan, CL Canedy, J Abell, CA Affouda; Electron Channeling Contrast Imaging for Non-Destructi
Light emission in crystalline silicon (c-Si) has been a subject of intense research over the past two decades. Many different strategies have been explored to make silicon an efficient infrared emitter at strategic telecom wavelengths, including doping with rare-earth atoms, or exploiting optically active structural d…
Marta D Rossell, Andreas Borgschulte, Rolf Erni; Surface Reduction in Monoclinic BiVO4 for Photocatalytic Applications, Microscopy and Microanalysis, Volum
T Brintlinger, M E Twigg, H L Hughes; Energy-Filtered Transmission Electron Microscope Tomography of Silicon Nanoparticles in Silicon Dioxide Deposited wit
Kun He, Xian Zhang, Yu-Peng Lu, Reza Shahbazian Yassar; Electron Beam Induced Phase Transformation in Zinc Phosphate, Microscopy and Microanalysis, Volume
QM Ramasse, F Azough, R Freer, DM Kepaptsoglou, R Mainz, A Weber, D Abou-Ras, E Simsek, PA van Aken; Atomic-Scale STEM-EELS Characterization of the Chemist
Robert W Carpick, Filippo Mangolini, James Hilbert, Jennifer Lukes; Thermo-Oxidative Stability of SiOx-doped Diamondlike Carbon Studied via Environmental X
The coupling efficiency of a surface grating coupler is optimized for a an arbitrary buried oxide thickness by adjusting the grating radiation angle. The coupler is apodized using a subwavelength structure, allowing a single etch step fabrication. The measured coupling loss is −2.16dB with 3dB bandwidth of 64nm, for a…
A principal challenge to the widespread adoption of hydrogen infrastructure is the lack of quantifiable data on its safety envelope and concerns about additional risk from hydrogen. To convince regulatory officials, local fire marshals, fuel suppliers, and the public at large that hydrogen refueling is safe for consum…
The Small Modular Reactor (SMR) Dynamic System Modeling Tool project is in the third year of development. The project is designed to support collaborative modeling and study of various advanced SMR (non-light water cooled) concepts, including the use of multiple coupled reactors at a single site. The objective of the…
Mg-PSZ refractories used as vacuum induction melting crucibles are particle-reinforced composites with aggregate and matrix phases comprising fused zirconia. Three commercial varieties were cycled eight times to service temperatures and their microstructural and thermomechanical evolution investigated, with focus plac…
2010년 기준 전 세계 자동차 등록대수는 약 10억 대에 이르며, 약 4천만 대의 폐 자동차가 발생하였다. 이에 EU를 비롯한 선진국들은 2015년까지 폐 자동차의 재활용률을 95%까지 높일 것을 요구하고 있다. 우리나라도 '전기 전자제품 및 자동차의 자원순환에 관한 법률'을 제정하여 폐 자동차의 95% 재활용을 목표로 하고 있다. 이러한 요구조건을 충족시키기 위해 현재 충분히 재활용되지 못하고 파쇄잔재물의 형태로 매립되고 있는 플라스틱, 비철금속 등의 처리 문제가 중요한 과제로 부상하고 있다. 본 연구에서는 폐 자동차 처리 선진국의 재활용 현황 조사의 일환으로,…
In this paper, sodium borosilicates glasses were prepared by melting in air. These heat-resistant transparent glasses have subjected subsequently isothermal treatments at different times, which have transformed them at opaque glass (milky white color). Such changes indicate that these glasses showed clearly phase sepa…
Material costs dominate some shielding design problems. This is certainly the case for manned nuclear power space applications for which shielding is essential and the cost of launching by rocket from earth is high. In such situations or in those where shielding volume or mass is constrained, it is important to optimi…
In the present work, the drying rate of carbonate of nickel was studied experimentally at the laboratory scale. The values of critical moisture are shown and the graphics: characteristic curve of drying rate and the moisture dependence of the time. Models ware obtained to estimate the slope of the constant - rate peri…
We report on the aggregation behaviors of Cr atoms deposited on flat and curved silicone oil substrates by the sputtering technique. It is found that the Cr atoms are prone to form quasi-circular clusters first and then these clusters connect with each other to form ramified or network-shaped aggregates. In the case o…
Abstract Not Provided
The objective of this research is to examine the key information needed from nuclear power plant instrumentation to guide severe accident management and mitigation for boiling water reactor (BWR) designs (specifically, a BWR/4-Mark I), estimate environmental conditions that the instrumentation will experience during a…