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Preparation and Luminescence Properties of Nano-polycrystalline Cr3+:Lu3Ga5O12

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Preparation and Luminescence Properties of Nano-polycrystall...

Influences of increasing gate stem height on DC and RF performances of InAlAs/InGaAs InP-based HEMTs

第11届全国发光学学术会议

作者： LIU Wen-peng~(1,2.) ZHANG Qing-li~1 ding Li-hua~(1,2. SHAO Shu-fang~(1,2. SUN Dun-lu~1 XIAO jin~(1,2. YIN Shao-tang~1 1.Anhui {2. of Optics and Fine Mechanics,chinese academy of sciences,Hefei 2.0031,china 2.Graduate University of chinese academy of Science,beijing 100049,china

Polycrystalline Cr:LuGaO(Cr:LGG)was obtained by sintering the Cr:LGG precursor, which was synthesized via co-precipitation *** Ga,LuO and CrO were used as starting materials and ammonia as *** X-Ray diffraction patterns(XRD),excitation and emission spectra were *** XRD results show that co-precipitation precursor powder sintered at 1000℃ for 3h has translated into polycrystalline Cr:*** lattice constant and average grain size were 12.173 A and 2. nm,*** excitation spectrum comprises three parts,in which two bands positioned at 462.nm and 608 nm correspond to A→T, A→T transition of Cr and another below 300 nm ascribes to the charge transition of Cr. The emission spectrum extends from 600 nm to 840 nm,which is ascribed to the T→A transition of *** fluorescence decay curve monitored at 703 nm is exponential and the fluorescence decay lifetime is 890 μ*** results indicate that Cr:LGG is a promising material for tunable laser.

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chinese Physics B 2021年第1期30卷 586-592页

作者： zhi-Hang Tong Peng ding Yong-Bo Su Da-Hai Wang zhi jin High-Frequency High-Voltage Device and Integrated Circuits Center Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029China University of chinese Academic of sciences Beijing 100049China

The T-gate stem height of In Al As/In Ga As In P-based high electron mobility transistor(HEMT) is increased from165 nm to 2.0 nm. The influences of increasing the gate stem height on the direct current(DC) and radio frequency(RF)performances of device are investigated. A 12.-nm-long gate, 2.0-nm-high gate stem device exhibits a higher threshold voltage(Vth) of 60 m V than a 12.-nm-long gate devices with a short gate stem, caused by more Pt distributions on the gate foot edges of the high Ti/Pt/Au gate. The Pt distribution in Schottky contact metal is found to increase with the gate stem height or the gate length increasing, and thus enhancing the Schottky barrier height and expanding the gate length,which can be due to the increased internal tensile stress of Pt. The more Pt distributions for the high gate stem device also lead to more obvious Pt sinking, which reduces the distance between the gate and the In Ga As channel so that the transconductance(gm) of the high gate stem device is 70 m S/mm larger than that of the short stem device. As for the RF performances,the gate extrinsic parasitic capacitance decreases and the intrinsic transconductance increases after the gate stem height has been increased, so the RF performances of device are obviously improved. The high gate stem device yields a maximum ft of 2.0 GHz and fmax of 460 GHz, while the short gate stem device has a maximum ft of 2.0 GHz and the fmax of 370 GHz.

关键词： InP-based HEMT gate stem height Pt/Ti Schottky contact gate parasitic capacitances

心肌特异性新蛋白激酶p93和peroxiredoxin3的相互作用

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生物化学与生物物理进展 2004年第8期31卷 688-692页

作者：冯艳刘冬青王震曹慧青时娜邓仲端丁金凤孟宪敏中国医学科学院中国协和医科大学阜外心血管病医院分子医学中心北京100037 华中科技大学同济医学院药理系武汉430030 华中科技大学同济医学院病理系武汉430030

为了明确p93在心血管系统中的生物学功能及在信号传导通路中的作用 ,采用酵母双杂交技术 ,选择 p93N端第 10 1～ 372.氨基酸构建诱饵质粒 ,筛选成人心脏cDNA文库 ,寻找与之相互作用的蛋白质 ,结果得到蛋白peroxiredoxin 3(PRX 3) .采... 详细信息

为了明确p93在心血管系统中的生物学功能及在信号传导通路中的作用 ,采用酵母双杂交技术 ,选择 p93N端第 10 1～ 372.氨基酸构建诱饵质粒 ,筛选成人心脏cDNA文库 ,寻找与之相互作用的蛋白质 ,结果得到蛋白peroxiredoxin 3(PRX 3) .采用体外结合实验和免疫共沉淀等方法 ,证实了原核和真核表达的 p93确实可与PRX3相互作用 ,通过双重荧光共定位 ,为二者的相互作用提供了定位依据 .研究提示p93可能参与心肌细胞中与PRX3有关的各种生理病理过程 ,如生长、分化、发育、凋亡。

关键词：心肌特异性新蛋白激酶 p93 酵母双杂交心肌细胞生物学功能信号传导通路

盐渍化改造区土地利用变化对地下水资源的影响——以河北省曲周县为例

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水土保持学报 2005年第5期19卷 152-154,200页

作者：李新波郝晋珉丁忠义李宇路鹏中国农业大学土地资源管理系北京100094 中国科学院地理科学与资源研究所北京100101 中国科学院水利部水土保持研究所陕西杨陵712100

运用GIS空间分析功能、柯布—道格拉斯生产函数以及曲周县统计资料和地下水资料,分析了近2.年来土地利用变化及其对地下水资源的影响,研究结果表明,作为盐渍化改造区以农业为主的曲周县,土地利用变化速度不快且土地用途转移主要是耕地... 详细信息

运用GIS空间分析功能、柯布—道格拉斯生产函数以及曲周县统计资料和地下水资料,分析了近2.年来土地利用变化及其对地下水资源的影响,研究结果表明,作为盐渍化改造区以农业为主的曲周县,土地利用变化速度不快且土地用途转移主要是耕地转变为农村居民点和城镇用地;耕地灌溉率、复种指数、耕地灌溉面积、粮食产量不断提高;粮食和蔬菜产量对地下水资源的高度依赖性,是引起地下水埋深变化的主要原因;依据河北省地下水超采区划分标准,曲周县浅层地下水开采区是基本平衡区,深层开采区属于中度超采区。为实现盐渍化改造区水土资源的可持续利用,必须调整种植业结构,适当降低土地利用集约度,大力发展节水农业。

关键词：盐渍化改造区土地利用变化生产函数地下水资源地下水埋深

An electromagnetic simulation assisted small signal modeling method for InP double-heterojunction bipolar transistors

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chinese Physics B 2022年第6期31卷 717-724页

作者： Yanzhe Wang Wuchang ding Yongbo Su Feng Yang Jianjun ding Fugui Zhou {2. jin School of Microelectronics University of Chinese Academy of SciencesBeijing 100049China High-Frequency High-Voltage Device and Integrated Circuits R&D Center Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029China

We present a convenient and practical electromagnetic(EM)assisted small-signal model extraction method for InP double-heterojunction bipolar transistors(DHBTs).Parasitic parameters of pad and electrode fingers are extracted by means of 3D EM *** simulations with a new excitation scheme are closer to the actual on-wafer measurement *** simulation settings are calibrated by comparing measurement and simulation of OPEN and SHORT structures.A simplerπ-type topology is proposed for the intrinsic model,in which the base-collector resistance Rμ,output resistance Rce are deleted,and a capacitance Cce is introduced to characterize the capacitive parasitic caused by the collector finger and emitter ground *** intrinsic parameters are all extracted by exact equations that are derived from rigorous *** method is characterized by its ease of implementation and the explicit physical meaning of extraction *** validations are performed at four biases for three InGaAs/InP HBT devices with 0.8×7μm,0.8×10μm and 0.8×15μm emitter,and quite good fitting results are obtained in the range of 0.1-50 GHz.

关键词： electromagnetic simulation InP double-heterojunction bipolar transistor parameter extraction small-signal modeling

Implementing Eco-friendly Reservoir Operation by Using Genetic Algorithm with Dynamic Mutation Operator

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Implementing Eco-friendly Reservoir Operation by Using Genet...

Pea leafminer Liriomyza huidobrensis (Diptera: Agromyzidae) uses vibrational duets for efficient sexual communication

2.10 International Conference on Life System Modeling and Simulation & 2.10 International Conference on Intelligent {2. for Sustainable Energy and Environment

作者： Duan chen1,2. Guobing Huang1, Qiuwen Chen2. Feng jin1 1 Changjiang River Scientific Research institute, Jiuwanfang, Hankou District, Wuhan 430010, {2. 2.Research Center for Eco-environmental Science, chinese academy of sciences, Shuangqinglu 18, Haidian District, beijing 100085, {2.

Simple Genetic Algorithms (SGA) uses a constant rate in mutation operator and may leads to pre-convergence and local optimal deficiency, especially for the problem with many nonlinear constraints such as eco-friendly reservoir operation. The study adapted SGA with a double dynamic mutation operator and developed an optimization model of eco-friendly reservoir operation, and applied it to the cascade reservoirs in the Southwest of china. It is shown that the adaptive GA with the dynamic mutation operator can fulfil the goal of eco-friendly reservoir operation and it was enhanced in search accuracy and global searching ability in comparison with SGA.

关键词： Genetic algorithms, double dynamic mutation operator, Eco-friendly reservoir operation

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Insect Science 2019年第3期26卷 510-522页

作者： jin Ge Jia-Ning Wei ding-Jie Zhang Chun Hi De-{2. Zheng Le Kang State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of Zoology Chinese Academy of Sciences Beijing China University of chinese academy of sciences Beijing China Key Laboratory of Zoological Systematics and Evolution Institute of Zoology Chinese Academy of Sciences Beijing China School of Instrumentation Science & Optoelectronics Engineering Beihang University Beijing China beijing institutes of Life Science Chinese Academy of Sciences Beijing China

The pea leafminer (Liriomyza huidobrensis) is a notorious pest of vegetables and ornamental plants worldwide. Despite a large number of studies on its biology and ecology, the courtship behavior and sexual communication of this species remain unclear. Here, we studied vibrational communication in the sexual interaction of the pea leafminer. On host plant leaves, females and males behaviorally displayed the bobbing-quivering alternation, which finally led to copulation. Moreover, records of laser vibrometry revealed threesignal duets underlying the behavioral alternation. Sexually mature males spontaneously emitted calls (MCs) to initiate the duets. The females rapidly responded to MCs by emitting replies (FRs) that are longer in duration. The FRs further triggered male replies (MRs) in their search for potential partners. Leafminer-produced vibrational signals convey efficient information to partners and generate pair formation on stretched substrates, such as plant leaves and nylon mesh, but cannot elicit responses on dense substrates, such as glass and plastic. Vibrational playbacks of both MCs and FRs can elicit replies in females and males, respectively. This study completely characterizes substrate-borne vibrational duets in a dipteran insect. The discovery of vibrational sex signals in the pea leafminer provides new insights for the development of novel approaches to control the pest and its relative species.

关键词： biotremology courtship behavior Liriomyza vibrational communication

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需求侧响应的算力网络调度策略研究

电信工程技术与标准化 2024年第1期37卷 36-41页

作者：周丹媛刘超清王志强丁亦志房永进中国移动通信集团有限公司北京100033 中国移动通信集团设计院有限公司北京100080 中国移动通信集团设计院有限公司江苏分公司南京211800

本文介绍了一种考虑需求侧响应的算力网络调度策略,包括算力系统调度方法、算力供给侧和需求侧的匹配、综合算力系统调度方法以及未来研究方向。通过将需求分类为可转移需求、可消减需求、可中断需求和不可消减需求,采用分时计价策略和... 详细信息

本文介绍了一种考虑需求侧响应的算力网络调度策略,包括算力系统调度方法、算力供给侧和需求侧的匹配、综合算力系统调度方法以及未来研究方向。通过将需求分类为可转移需求、可消减需求、可中断需求和不可消减需求,采用分时计价策略和可中断需求策略进行需求侧算力的调整,并调整各分布式数据中心设备算力的供给和边缘节点设备的接入,在满足综合算力系统的各约束前提下获得最低的系统总成本。该调度方法可以为算力网络系统的并网和智能调度提供一种新的思路。

关键词：算力网络需求侧响应综合算力系统调度

Organic-inorganic hybrid piezotronic bipolar junction transistor for pressure sensing

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Microsystems & Nanoengineering 2024年第3期10卷 229-244页

作者： Emad Iranmanesh Zihao Liang Weiwei Li Congwei Liao Shunyu jin Chuan Liu Kai Wang Shengdong Zhang Charalampos Doumanidis Gehan A.J.Amaratunga Hang Zhou Guangdong Provincial Key Laboratory of In-Memory computing Chips School of Electronic and Computer EngineeringPeking University Shenzhen Graduate SchoolShenzhen 518055P.R.China School of Mechanical Engineering Guangdong Technion-Israel Institute of TechnologyShantou 515063P.R.China State Key Laboratory of Microelectronics Device and Integrated technology Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029P.R.China Hefei National Research Center for Physical sciences at the Microscale University of Science and Technology of ChinaHefei 23000PR China School of Electronics and Information technology Sun Yat-sen UniversityNo.132 East Waihuan RoadGuangzhou 510006P.R.China Department of Mechanical Aerospaceand Biomedical EngineeringUniversity of South AlabamaShelby Hall3128MobileAL 36688USA Electrical Engineering Division Department of EngineeringUniversity of Cambridge9 JJ Thomson AvenueCambridge CB30FAUnited Kingdom Zhejiang University International CampusHainingChina

With the rapid development of the Internet of Things(IoTs),wearable sensors are playing an increasingly important role in daily monitoring of personal health and *** signal-to-noise-ratio has become the most critical performance factor to *** enhance it,on the one hand,good sensing materials/devices have been employed;on the other hand,signal amplification and noise reduction circuits have been ***,most of these devices and circuits work in an active sampling mode,requiring frequent data acquisition and hence,entailing high-power *** this scenario,a flexible and wearable event-triggered sensor with embedded signal amplification without an external power supply is of great ***,we report a flexible two-terminal piezotronic n-p-n bipolar junction transistor(PBJT)that acts as an autonomous and highly sensitive,current-and/or voltage-mediated pressure *** PBJT is formed by two back-to-back piezotronic diodes which are defined as emitter-base and collectorbase *** force exertion on the emitter side,as a result of the piezoelectric effect,the emitter-base diode is forward biased while the collector-base diode is reverse *** to the inherent BJT amplification effect,the PBJT achieves record-high sensitivities of 139.7 kPa^(-1)(current-based)and 88.66 kPa^(-1)(voltage-based)in sensing *** PBJT also has a fast response time of110 ms under exertion of dynamic stimuli ranging from a flying butterfly to a gentle finger ***,the PBJT advances the state of the art not only in terms of sensitivity but also in regard to being self-driven and autonomous,making it promising for pressure sensing and other IoT applications.

关键词： bipolar transistor IoT