共查询到19条相似文献,搜索用时 39 毫秒
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张志娟;赵志耘;张旭;赵蕴华;郭斌梅 《液晶与显示》2013,28(6):973-978
介绍了可印刷电子纸的相关技术及发展现状,并基于专利对可印刷电子纸技术展开了深入研究,从技术的总体趋势、技术重点、机构情况及新技术与研究人员4个方面探讨了该技术的发展趋势,为该领域内相关企业制定战略决策提供参考依据。研究发现可印刷电子纸正处于快速发展阶段,日本处于领跑地位,各国积极布局以期抢占竞争高位。 相似文献
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从20世纪90年代开始,电子政府在全球各地兴起。新世纪伊始,移动政府的概念又被提了出来。移动政府即把电子政府的部分功能从固定网转移到移动网来实现,可以把移动政府看成电子政府的一个子集。移动政府概念的提出主要是基于移动网络大面积覆盖和移动终端的发展。 相似文献
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电子/微电子技术的发展,使电子产品的设计活动与计算机设计系统密不可分.这不仅仅是因为采用计算机设计系统能减轻劳动强度、降低成本,还因为电子产品体积越来越小,功能起来越复杂,而产品的市场寿命却越来越短,不采用计算机设计系统不仅不能满足对设计的精度和质量的要求,更不能适应不断变化的市场.随着电子产品功能增加、体积缩小、重量减轻、质量提高,价格却一直呈下降的趋势,产品更新速度也越来越快.实现这种进步的主要因素是生产技 相似文献
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S. F. Busch M. Weidenbach M. Fey F. Schäfer T. Probst M. Koch 《Journal of Infrared, Millimeter and Terahertz Waves》2014,35(12):993-997
We characterize the terahertz (THz) properties of several materials which can be used for fused material deposition 3D printing. We identify Polystyrene as a material which shows a promising compromise between printability and THz transparency. Furthermore, printed THz lenses are presented and characterized. 相似文献
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Analysis of Radiated Emissions From a Printed Circuit Board Using Expert System Algorithms 总被引:1,自引:0,他引:1
Three algorithms developed for expert system electromagnetic compatibility tools are used to evaluate a printed circuit board design. The maximum radiated emissions estimated by the algorithms are compared to the measured data for various board configurations. The algorithms identify the most important electromagnetic interference source mechanisms, drawing attention to the design parameters that have the most significant effect on the radiated emissions 相似文献
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Kalpana Besar Shyuan Yang Xin Guo Weiguo Huang Ana M. Rule Patrick N. Breysse Ioannis J. Kymissis Howard E. Katz 《Organic Electronics》2014,15(11):3221-3230
We report an organic field-effect transistor (OFET)-based sensor made from printable materials with an unusually high sensitivity of 0.5 ppm v/v for ammonia and with limit of detection on the order of 0.1 ppm v/v. The device developed has a polyethylene terephthalate (PET) substrate, bottom contacts, and poly (3,3?-didodecylquaterthiophene) (PQT-12) cast from 4 mg/mL cholorobenzene solution as active semiconductor. The fabrication process is simplified by replacing the gate electrode and dielectric deposition steps with the introduction of static charges on the back surface of the PET substrate by corona charging, a procedure that is adaptable to roll-to-roll processing. Hydrophobic polymers applied to the back surface stabilize this charge, providing evidence for their activity at that location. In the proposed sensor, these static charges are used as a static gate, reducing the OFET architecture to a chemiresistor. The sensor is selective for ammonia over common organic solvent vapors, and the response is generally reversible. The device also demonstrates memory behavior required for dosimetric sensors when kept at low temperature (4 °C to −30 °C). A converse response from an n-channel semiconductor is also reported. 相似文献

