关键词：智能家电；导入期

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关键词：产业转型；家电企业；产品结构

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关键词：洗衣机；标准体系

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关键词：核电；压力容器；研制

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关键词：核电设备；业绩

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关键词：冰箱；线上销售

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No abstract available.

关键词：电气工程；工程规划；静电；印刷电路；智能电网

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The major accomplishments during the tenure of this proposal include: Designed target test patterns of optical grating devices and fabricated e-beam lithography-based master molds. Printed micro and nanostructures using a newly developed spin-on nanoprinting (SNAP) technique. SNAP is a simple and easy technique to print any optical structures. The contractor demonstrated that this technique can be used to print grating structures on a silicon substrate.

关键词：光电子技术；光栅（光谱）；聚合物；铵化合物；脱氧核糖核酸

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X-ray diffraction (XRD) is a powerful analysis method that allows researchers to noninvasively probe the crystalline structure of a material. This includes the ability to determine the crystalline phases present, quantify surface residual stresses, and measure the distribution of crystallographic orientations. The Structures and Materials Division at the NASA Glenn Research Center (GRC) heavily uses the on-site XRD lab to characterize advanced metal alloys, ceramics, and polymers. One of the x-ray diffractometers in the XRD lab (Bruker D8 Discover) uses three different x-ray tubes (Cu, Cr, and Mn) for optimal performance over numerous material types and various experimental techniques. This requires that the tubes be switched out and aligned between experiments. This alignment maximizes the x-ray tube s output through an iterative process involving four set screws. However, the output of the x-ray tube cannot be monitored during the adjustment process due to standard radiation safety engineering controls that prevent exposure to the x-ray beam when the diffractometer doors are open. Therefore, the adjustment process is a very tedious series of blind adjustments, each followed by measurement of the output beam using a PIN diode after the enclosure doors are shut. This process can take up to 4 hr to perform. This technical memorandum documents an in-house project to motorize this alignment process. Unlike a human, motors are not harmed by x-ray radiation of the energy range used in this instrument. Therefore, using motors to adjust the set screws will allow the researcher to monitor the x-ray tube s output while making interactive adjustments from outside the diffractometer. The motorized alignment system consists of four motors, a motor controller, and a hand-held user interface module. Our goal was to reduce the alignment time to less than 30 min. The time available was the 10-week span of the Lewis' Educational and Research Collaborative Internship Project (LERCIP) summer internship program and the budget goal was $1200. In this report, we will describe our motorization design and discuss the results of its implementation.

关键词：衍射仪；全自动控制；对齐；控制器；X射线衍射仪

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This is a highly productive research project (13 papers in three years, on journals of Nature Photonics, Advanced Materials, Advanced Functional Materials, Angewandte Chemie International Edition, etc) aiming to (a) understand the potential of conjugated polymer based solar cell under simulated space radiation conditions, (2) develop and improving tandem polymer solar cell structures - constantly pushing the envelope of organic solar cell performance; (3) develop novel polymers for high efficiency OPV. In addition, we also conducted research in utilizing metal grating electrode to improve OPV light harvesting.

关键词：宇宙射线；聚合物；太阳能电池；降解

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