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MOSFET栅下碰撞电离与击穿研究
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作者 赫晓龙 姚素英 +3 位作者 赵毅强 王培林 Ganming Qin 王传政 《固体电子学研究与进展》 CAS CSCD 北大核心 2004年第1期15-19,共5页
研究了场板终端技术对改善 MOSFET栅下电场分布和碰撞电离率的作用 ,结果表明 ,MOSFET在高压应用时 ,漏极靠近表面的 PN结处电场最强 ,决定器件的击穿特性。通过对实验研究与计算机模拟结果的分析 ,表明在不同的栅压下 ,此处场板长度的... 研究了场板终端技术对改善 MOSFET栅下电场分布和碰撞电离率的作用 ,结果表明 ,MOSFET在高压应用时 ,漏极靠近表面的 PN结处电场最强 ,决定器件的击穿特性。通过对实验研究与计算机模拟结果的分析 ,表明在不同的栅压下 ,此处场板长度的大小对栅下电场强度有直接的影响 ,合理地控制场板长度能有效地提高器件的击穿电压。 展开更多
关键词 MOSFET 碰撞电离 击穿 电场强度
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Age and duration of intra-oceanic arc volcanism built on a suprasubduction zone type oceanic crust in southern Neotethys,SE Anatolia 被引量:4
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作者 Fatih Karaoglan Osman Parlak +2 位作者 Urs Kltzli Friedrich Koller Tamer Rizaoglu 《Geoscience Frontiers》 SCIE CAS CSCD 2013年第4期399-408,共10页
The southeastern Anatolia comprises numbers of tectono-magmatic]stratJgraphic units such as the metamorphic massifs, the ophiolites, the volcanic arc units and the granitoid rocks. All of them play important role for ... The southeastern Anatolia comprises numbers of tectono-magmatic]stratJgraphic units such as the metamorphic massifs, the ophiolites, the volcanic arc units and the granitoid rocks. All of them play important role for the late Cretaceous evolution of the southern Neotethys. The spatial and temporal relations of these units suggest the progressive development of coeval magmatism and thrusting during the late Cretaceous northward subduction/accretion. Our new U-Pb zircon data from the rhyolitic rocks of the wide-spread volcanic arc unit show ages of (83.1 ± 2.2)-(74.6 ± 4.4) Ma. Comparison of the ophiolites, the volcanic arc units and the granitoids suggest following late Cretaceous geological evolution. The ophiolites formed in a suprasubduction zone (SSZ) setting as a result of northward intra-oceanic subduction. A wide-spread island-arc tholeiitic volcanic unit developed on the top of the SSZ-type crust during 83 75 Ma. Related to regional plate convergence, northward under-thrusting of SSZ-type ophiolites and volcanic arc units was initiated beneath the Tauride platform (Malatya-Keban) and followed by the intrusion of I-type calc-alkaline volcanic arc granitoids during 84 82 Ma. New U-Pb ages from the arc-related volcanic-sedimentary unit and granitoids indicate that under-thrusting of ophiolites together with the arc-related units beneath the Malatya-Keban platform took place soon after the initiation of the volcanic arc on the top of the SSZ- type crust. Then the arc-related volcanic-sedimentary unit continued its development and lasted at - 75 Ma until the deposition of the late Campanian-Maastrichtian shallow marine limestone. The subduction trench eventually collided with the Bitlis-Pfitfirge massif giving rise to HP-LT meta- morphism of the Bitlis massif. Although the development of the volcanic arc units and the granitoids were coeval at the initial stage of the subduction/accretion both tectono-magmatic units were genetically different from each other. 展开更多
关键词 Island-arcOphioliteGranitoidU-Pb geochronologySSZ settingSE Anatolia
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第4章 地球大气的卫星观测 被引量:1
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作者 史蒂文·阿克曼 S.PLATNICK +9 位作者 P.K.BHARTIA B.DUNCAN T.L’ECUYER A.HEIDINGER G.SKOFRONICK-JACKSON N.LOEB T.SCHMIT N.SMITH 侯美亭(编译) 李婧华(编译) 《气象科技进展》 2019年第S01期52-72,共21页
卫星气象学是大气科学中的一个相对较新的分支。该领域出现在20世纪50年代末的冷战时期,它建立在二战后火箭技术发展的基础上。在不到70年的时间里,卫星观测改变了科学家观察和研究地球的方式。本文将讨论我们在理解卫星观测能量和水循... 卫星气象学是大气科学中的一个相对较新的分支。该领域出现在20世纪50年代末的冷战时期,它建立在二战后火箭技术发展的基础上。在不到70年的时间里,卫星观测改变了科学家观察和研究地球的方式。本文将讨论我们在理解卫星观测能量和水循环、天气预报和大气成分方面的一些关键进展。虽然卫星气象学的发展离不开世界各国的推动,但在有限篇幅的美国百年气象学会纪念文集上,本文的重点是介绍美国在这方面的成就。 展开更多
关键词 纪念文集 卫星观测 卫星气象学 地球大气 气象学会 大气成分 大气科学 水循环
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The Homoclinic Orbit Solution for Functional Equation
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作者 LIU Shi-Da FU Zun-Tao LIU Shi-Kuo REN Kui 《Communications in Theoretical Physics》 SCIE CAS CSCD 2002年第11期553-554,共2页
In this paper, some examples, such as iterated functional systems, scaling equation of wavelet transform,and invariant measure system, are used to show that the homoclinic orbit solutions exist in the functional equat... In this paper, some examples, such as iterated functional systems, scaling equation of wavelet transform,and invariant measure system, are used to show that the homoclinic orbit solutions exist in the functional equations too.And the solitary wave exists in generalized dynamical systems and functional systems. 展开更多
关键词 functional equation SCALING equation SOLITARY wave HOMOCLINIC ORBIT
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The Homoclinic Orbit Solution for Functional Equation
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作者 LIUShi-Da FUZun-Tao 《Communications in Theoretical Physics》 SCIE CAS CSCD 2002年第5期553-554,共2页
In this paper, some examples, such as iterated functional systems, scaling equation of wavelet transform,and invariant measure system, are used to show that the homoclinic orbit solutions exist in the functional equat... In this paper, some examples, such as iterated functional systems, scaling equation of wavelet transform,and invariant measure system, are used to show that the homoclinic orbit solutions exist in the functional equations too.And the solitary wave exists in generalized dynamical systems and functional systems. 展开更多
关键词 functional equation scaling equation solitary wave homoclinic orbit
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The Future of Broadband Connectivity: Terrestrial Networks vs Satellite Constellations
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作者 Abdulkareem Adinoyi Moudhi Aljamae Ahmed Aljlaoud 《International Journal of Communications, Network and System Sciences》 2022年第5期53-66,共14页
This paper looks at the landscape of broadband connectivity as consumers welcome disruptive newcomers, the satellite service providers, into the telecommunication and internet ecosystem. It highlights the developments... This paper looks at the landscape of broadband connectivity as consumers welcome disruptive newcomers, the satellite service providers, into the telecommunication and internet ecosystem. It highlights the developments that have made it possible for satellites communication to form a competitive alternative for terrestrial broadband internet services. We motivate discussions on ways and approaches to ensure terrestrial mobile operators construct effective strategy in integrating and working with the newcomers for interconnecting their terrestrial nodes with those of the satellite service providers. We discuss some technology and business perspectives for a healthy co-existence, and postulate that customers’ finances (price consideration) and perception of quality of experience and satisfaction may be the battleground for satellites and terrestrial service providers. Finally, it is concluded that, in the history of human endeavor, smart and effective cooperation has always been the best strategy to fight extinction. 展开更多
关键词 Broadband Internet SATELLITES Mobile Operators TERRESTRIAL AERIAL
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Telemedicine and Smart Healthcare—The Role of Artificial Intelligence, 5G, Cloud Services, and Other Enabling Technologies
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作者 Taofik Ahmed Suleiman Abdulkareem Adinoyi 《International Journal of Communications, Network and System Sciences》 2023年第3期31-51,共21页
This paper discusses telemedicine and the employment of advanced mobile technologies in smart healthcare delivery. It covers the technological advances in connected smart healthcare, including the roles of artificial ... This paper discusses telemedicine and the employment of advanced mobile technologies in smart healthcare delivery. It covers the technological advances in connected smart healthcare, including the roles of artificial intelligence, machine learning, 5G and IoT platforms, and other enabling technologies. It also presents the challenges and potential risks that could arise from delivering connected smart healthcare services. Healthcare delivery is witnessing revolutions engineered by the developments in mobile connectivity and the plethora of platforms, applications, sensors, devices, and equipment that go along with it. Human society is evolving fast in response to these technological developments, which are also pushing the connectivity-providing sector to create and adopt new waves of network technologies. Consequently, new communications technologies have been introduced into the healthcare system and many novel applications have been developed to make it easier for sharing data in various forms and volumes within health-related services. These applications have also made it possible for telemedicine to be effectively adopted. This paper provides an overview of some of the recent developments within the space of mobile connectivity and telemedicine. 展开更多
关键词 TELEMEDICINE Smart Healthcare 5G Artificial Intelligence Machine Learning Internet-of-Medical-Things
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Active Learning Strategies for Textual Dataset-Automatic Labelling
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作者 Sher Muhammad Daudpota Saif Hassan +2 位作者 Yazeed Alkhurayyif Abdullah Saleh Alqahtani Muhammad Haris Aziz 《Computers, Materials & Continua》 SCIE EI 2023年第8期1409-1422,共14页
The Internet revolution has resulted in abundant data from various sources,including social media,traditional media,etcetera.Although the availability of data is no longer an issue,data labelling for exploiting it in ... The Internet revolution has resulted in abundant data from various sources,including social media,traditional media,etcetera.Although the availability of data is no longer an issue,data labelling for exploiting it in supervised machine learning is still an expensive process and involves tedious human efforts.The overall purpose of this study is to propose a strategy to automatically label the unlabeled textual data with the support of active learning in combination with deep learning.More specifically,this study assesses the performance of different active learning strategies in automatic labelling of the textual dataset at sentence and document levels.To achieve this objective,different experiments have been performed on the publicly available dataset.In first set of experiments,we randomly choose a subset of instances from training dataset and train a deep neural network to assess performance on test set.In the second set of experiments,we replace the random selection with different active learning strategies to choose a subset of the training dataset to train the same model and reassess its performance on test set.The experimental results suggest that different active learning strategies yield performance improvement of 7% on document level datasets and 3%on sentence level datasets for auto labelling. 展开更多
关键词 Active learning automatic labelling textual datasets
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屋面防水维修施工法的新概念涂膜防水密着通气工法
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作者 徐伟杰 徐培钧 +2 位作者 徐毓贤 富冈贤一 增田纪彦 《深圳土木与建筑》 2015年第2期74-77,共4页
一.序言我们认为建筑物防水有两个重要的功能:(1)保护人民的生命和财产不受雨水侵害。(2)保护建筑物的构造不受雨水腐蚀,使建筑物的使用年限更加延长。传统上聚氨酯防水涂料的主流施工方法是在混凝土基层上面铺加强层后再涂刷聚氨酯涂料... 一.序言我们认为建筑物防水有两个重要的功能:(1)保护人民的生命和财产不受雨水侵害。(2)保护建筑物的构造不受雨水腐蚀,使建筑物的使用年限更加延长。传统上聚氨酯防水涂料的主流施工方法是在混凝土基层上面铺加强层后再涂刷聚氨酯涂料,然后在聚氯酯防水层上作一层混凝土保护层,或涂布一层抗紫外线面层。涂膜防水遇到不完全干燥的地面一段时间后比较容易产生鼓起龟裂的现象。针对老旧建筑物防水维修工程的不断增加,研究适合每个建筑物的防水维修方法是非常重要的。 展开更多
关键词 涂膜防水 聚氨酯防水涂料 屋面防水 混凝土保护层 完全干燥 混凝土基层 维修施工 维修工程 聚合物水泥 补强
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探索软件园设计的生态学途径——上海国家软件出口基地规划设计
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作者 王振军 张会明 《建筑学报》 北大核心 2005年第1期62-64,共3页
生态系统是“一定空间内生物和非生物通过物质的循环,能量的流动和信息的交换而相互作用,相互依存所构成的生态学功能单元”。本文以上海国家软件出口基地为例,从生态学的角度探讨软件园的生态设计途径。
关键词 软件出口 软件园 上海 国家 基地 途径 信息 生物 角度 物质
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Prediction of slope failure due to earthquake 被引量:5
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作者 CHEN XiaoLi KATO Nobuaki +1 位作者 TSUNAKI Ryosuke MUKAI Keiji 《Chinese Science Bulletin》 SCIE EI CAS 2009年第16期2888-2894,共7页
The earthquake-triggered landslides and slope failures are common phenomena during strong earthquakes and have drawn more attention from the world because of severe hazards they induced. These hazards usually cannot b... The earthquake-triggered landslides and slope failures are common phenomena during strong earthquakes and have drawn more attention from the world because of severe hazards they induced. These hazards usually cannot be prevented by current mitigating measures, thus, it becomes more and more important to develop a precise technique for the risk assessment of earthquake-induced failures in the mountainous area. The application of discrimination analysis method is proved to be successful and effective in the prediction of earthquake-triggered landslides and slope failures in the region of Imokawa Basin in Japan. Discriminant score can be used to assess the relative risk of slope failures, as the score increases, the possibility of slope failures occurrence increases accordingly. At the same time, the variables in the judgement formula, such as slope gradient, slope curvature and seismic peak ground acceleration, are easy to obtain. This advantage makes this method more practical and manipulable than others at present. In order to apply this method more effectively, there are still several problems to resolve. 展开更多
关键词 强烈地震 倒塌 预测 山体滑坡 风险评估 峰值加速度 地震预报 危险度
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根据企业实际决定审核重心
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作者 陈苹 《中国质量认证》 1998年第6期23-23,共1页
关键词 企业 审核 经营环境 要素 ISO9000标准
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Tunable high-Q SAW resonator loaded on a changing capacitance
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作者 G.Ya.Karapetyan V.E.Kaydashev +4 位作者 M.E.Kutepov T.A.Minasyan V.A.Kalinin V.O.Kislitsyn E.M.Kaidashev 《Journal of Advanced Dielectrics》 CAS 2020年第1期55-60,共6页
A tunable high-Q surface acoustic wave(SAW)resonator in the form of several parallel-connected interdigital transducers loaded on a varying capacitance on lithium niobate substrates was developed and studied.The worki... A tunable high-Q surface acoustic wave(SAW)resonator in the form of several parallel-connected interdigital transducers loaded on a varying capacitance on lithium niobate substrates was developed and studied.The working frequency range was 90-2450 MHz.A method of calculating such resonators,considering losses in the metal film as well as losses due to the propagation of SAWs and transformations into bulk waves is proposed.Such a design allows one to obtain a quality factor over 5000 in the frequency range 2400-2483 MHz.The resonant frequency shifts by 600 kHz when the capacitance changes by±25%of the value of 21 pF(or 32 ppm/pF)and has an almost linear character. 展开更多
关键词 Crystal growth directional crystallization defects internal stresses analytical methods
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合作开拓海外市场
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作者 佐野茂树 《纺织服装周刊》 2014年第18期96-96,共1页
东洋纺STC公司以运动服装为主的缝制品事业中,在投入新商品的同时,努力把成本上升部分转嫁到销售价格中。同时。利用海外生产,加强向东南亚各国及欧美开展销售。现在销售额中所占比例还不高。但正在逐渐增加。将以印度尼西亚为中心... 东洋纺STC公司以运动服装为主的缝制品事业中,在投入新商品的同时,努力把成本上升部分转嫁到销售价格中。同时。利用海外生产,加强向东南亚各国及欧美开展销售。现在销售额中所占比例还不高。但正在逐渐增加。将以印度尼西亚为中心,并和中南美的集团企业合作开拓海外市场。 展开更多
关键词 海外市场 企业合作 销售价格 印度尼西亚 运动服装 美的集团 缝制品 STC
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东洋纺STC社长 清水荣一 进一步磨砺有优势的事业
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作者 清水荣一 《纺织服装周刊》 2021年第44期35-35,共1页
东洋纺STC公司在2021年4月进行了组织重组,把4个事业部重组为5个事业部体制。由此把定位于优势的事业进一步加以磨砺。清水荣一社长称2021财年(截至2022年3月)要修复因新冠肺炎疫情而受损的事业,“从2022财年起重新回到成长路线上”。
关键词 组织重组 STC 事业部体制 成长路线 社长 磨砺 东洋 清水
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加强在欧亚美的销售
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作者 佐野茂树 《纺织服装周刊》 2014年第43期85-85,共1页
东洋纺STC公司的佐野茂树社长认为“今后的发展方向是与海外企业的合作”。通过与韩国、中国企业的合作.加强在亚洲及欧美的销售,这被称为“Open Innovation”。通过海外生产。不仅开展对日贸易。还扩大了向海外市场销售的范围。从而... 东洋纺STC公司的佐野茂树社长认为“今后的发展方向是与海外企业的合作”。通过与韩国、中国企业的合作.加强在亚洲及欧美的销售,这被称为“Open Innovation”。通过海外生产。不仅开展对日贸易。还扩大了向海外市场销售的范围。从而实现纺织业务的营业利润率达到3%。 展开更多
关键词 市场销售 海外企业 中国企业 OPEN STC 利润率 合作
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使用电解消毒和软化水的设备
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作者 Kang,Yong Ju 《水处理信息报导》 2007年第3期40-40,共1页
本文提供了一种使用电解消毒和软化水的设备,通过使用该设备可以避免现存电解设备存在的问题(即在某一时间间隔内通过电极的极性变化导致电解室中生成垢),无需设备的修复和交换。一种消毒设备由离子化水生产装置组成,该生产装置通... 本文提供了一种使用电解消毒和软化水的设备,通过使用该设备可以避免现存电解设备存在的问题(即在某一时间间隔内通过电极的极性变化导致电解室中生成垢),无需设备的修复和交换。一种消毒设备由离子化水生产装置组成,该生产装置通过电解原水向原始酸性水贮存槽供应酸性水,进而生产强碱水和强酸水。使用电解消毒和软化水的这种设备包括安装在离子化水生产装置之前的软化装置,用于收集沉积的金属外来材料, 展开更多
关键词 电解设备 消毒设备 软化水 生产装置 时间间隔 装置组成 软化装置 离子化
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调整组织结构力图使收益好转
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作者 田保高幸 《纺织服装周刊》 2021年第18期37-37,共1页
东洋纺STC公司为了使因新冠肺炎疫情而陷入困境的业绩恢复,向具有优势职业装及中东出口、针织衬衫面料等领域重点投入经营资源。为此在4月1日进行了机构改革。田保高幸社长还着眼于后疫情时代,通过新体制的努力,“力图从2021财年(截至2... 东洋纺STC公司为了使因新冠肺炎疫情而陷入困境的业绩恢复,向具有优势职业装及中东出口、针织衬衫面料等领域重点投入经营资源。为此在4月1日进行了机构改革。田保高幸社长还着眼于后疫情时代,通过新体制的努力,“力图从2021财年(截至2022年3月)起使收益好转”。 展开更多
关键词 职业装 收益 疫情 好转
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