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CES Transactions on electrical Machines and Systems 2017年第1期1卷 26-36页

作者： Philip T.Krein Mcdavis A.Fasugba Zhejiang University University of Illinois at Urbana-Champaign Institute HainingChina Department of electrical and Computer Engineering University of Illinois at Urbana-Champaignand the UrbanaIllinoisU.S.A Texas Instruments inc.

With proper power scheduling and dynamic pricing,a unidirectional charger can provide benefits and regulation services to the electricity grid,at a level approaching that of bidirectional *** scheduling and schedule flexibility of electric and plug-in hybrid vehicles are *** use of electric vehicles(EVs)as flexibility resources and associated unidirectional vehicle-to-grid benefits are *** can be scheduled with the EV charger in control of charging or via control by a utility or an *** cost functions suitable for charger-and utility-controlled power scheduling are *** service levels possible with unidirectional vehicle-to-grid are quantified using sample charging scenarios from published *** of various power schedules and vehicle participation as a flexibility resource on electricity locational prices are *** inc.ude benefits to both owners and load-serving *** regulation is considered in the context of unidirectional charging.

关键词： Demand response electric vehicles plug-in hybrids unidirectional battery charging utility dynamic price control vehicle-to-grid.

Model-Free Sliding Mode Control for PMSM Drive System Based on Ultra-Local Model

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Energy Engineering 2022年第2期119卷 767-780页

作者： Kaihui Zhao Wenchang Liu Tonghuan Yin Ruirui Zhou Wangke Dai Gang Huang College of electrical and Information Engineering Hunan University of TechnologyZhuzhou412007China School of Engineering Tokyo University of TechnologyHachioji192-0982Japan Institute of Refrigeration Technology Gree Electric AppliancesInc.of ZhuhaiZhuhai519070China School of Traffic and Transportation Engineering Central South UniversityChangsha410073China College of Railway Transportation Hunan University of TechnologyZhuzhou412007China

This paper presents a novel model-free sliding mode control(MFSMC)method to improve the speed response of permanent magnet synchronous machine(PMSM)drive *** ultra-local model(ULM)is first derived based on the input and the output of the ***,the novel MFSMC method is presented,and the controller is designed based on ULM and MFSMC.A sliding mode observer(SMO)is constructed to estimate the unknown part of the *** estimated unknown part is feedbacked to MFSMC controller to performcompensation for parameter perturbations and external *** with the sliding mode control(SMC)method,the results of simulation and experiment demonstrate that the presented MFSMC method improves the dynamic response and robustness of the PMSM drive system.

关键词： Permanent magnet synchronous motor(PMSM) ultra-local model(ULM) model-free sliding mode control(MFSMC) sliding mode observer(SMO)

交流互联电网中大扰动对联络线的冲击特性分析方法

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电力系统自动化 2013年第21期37卷 17-22页

作者：刘巨孙海顺文劲宇罗成强电磁工程与新技术国家重点实验室华中科技大学湖北省武汉市430074 Midwest Independent Transmission System Operator inc. Carmel 46032 美国

针对在规模庞大的同步交流电网中,区域内大扰动不仅会对本区域电网稳定性造成冲击,而且将通过区域间联络线对其他区域电网的稳定性产生冲击,甚至会导致区域联络线功率振荡解列的现象,研究了故障后大扰动冲击各个区域电网的特性。基于联... 详细信息

针对在规模庞大的同步交流电网中,区域内大扰动不仅会对本区域电网稳定性造成冲击,而且将通过区域间联络线对其他区域电网的稳定性产生冲击,甚至会导致区域联络线功率振荡解列的现象,研究了故障后大扰动冲击各个区域电网的特性。基于联络线暂态势能变化,定义了扰动起始冲击时间和扰动冲击时间,可以定量描述大扰动冲击区域交流联络线的过程,并根据首次扰动冲击时间联络线功率偏差与暂态势能间的关系,提出了联络线脆弱性指标作为系统是否在联络线处发生解列的判据,从而建立了基于能量函数的大扰动冲击特性定量描述方法。最后,在华中—华北交流互联电网中验证了所述方法的有效性。

关键词：互联电网大扰动冲击能量函数法联络线解列

Plasmon resonant amplification of a hot electron-driven photodiode

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Nano Research 2018年第4期11卷 2310-2314页

作者： Lang Shen Nirakar Poudel George N. Gibson Bingya Hou Jihan Chen Haotian Shi Ernest Guignon William D. Page Arturo Pilar Stephen B. Cronin Mork Family Department of Chemical Engineering and Materials Science University of Southern California Los Angeles CA 90089 USA Ming Hsieh Department of electrical Engineering University of Southern California Los Angeles CA 90089 USA Department of Physics University of Connecticut Storrs CT06269 USA Department of Chemistry University of Southern California Los Angeles CA 90089 USA Ciencia inc. East Hartford CT 06108 USA Department of Physics and Astronomy University of Southern California Los Angeles CA 90089 USA

We report plasmon resonant excitation of hot electrons in a photodetector based on a metal/oxide/metal （Au/Al2O3/graphene） heterostructure. In this device, hot electrons, excited optically in the gold layer, jump over the oxide barrier and are injected into the graphene layer, producing a photocurrent. To amplify this process, the bottom gold electrode is patterned into a plasmon resonant grating structure with a pitch of 500 nm. The photocurrent produced in this device is measured using 633-nm-wavelength light as a function of inc.dent angle. We observe the maximum photocurrent at ＋10° from normal inc.dence under irradiation with light polarized parallel to the inc.dent plane （p-polarization） and perpendicular to the lines on the grating, and a constant （angle-independent） photocurrent under irradiation with light polarized perpendicular to the inc.dent plane （s-polarization） and parallel to the grating. These data show an amplification factor of 4.6× under resonant conditions. At the same angle （±10°）, we also observe sharp dips in the photoreflectance corresponding to wavevector matching between the inc.dent light and the plasmon mode in the grating. In addition, finite-difference time-domain simulations predict sharp dips in the photoreflectance at ±10°, and the electric field intensity profiles show clear excitation of a plasmon resonant mode when illuminated with p-polarized light at this angle.

关键词： hot electrons plasmonic resonance plasmon grating photocurrent non-equilibrium

HREM ANALYSIS OF ULTRA-THIN OXIDES （Invited）

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HREM ANALYSIS OF ULTRA-THIN OXIDES （Invited）

1995 4th International Conference on Solid-State and Integrated Circuit Technology

作者： R.Sinc.AIR M.NIWA T.KOUZAKI Department of Materials Science and Engineering Stanford University Stanford California 94303 USA Semiconductor Research Center Matsushita Electric Ind. Co. Ltd. 3-1-1 Yagumo-nakamachi Moriguchi Osaka 570 Japan Matsushita Technoresearch Inc. 3-1-1 Yagumo-nakamachi Moriguchi Osaka 570 Japan

＜正＞ Ultra-thin SiO2 layers on Si （e.g., sub-10 nm） will be inc.easingly important in future VLSI devices. Precise control of thickness and interface roughness are important parameters. High resolution electron microscopy （HREM） is extremely effective for characterizing such features, as is illustrated here for gate oxides and tunneling oxides.

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美国PGE公司水电站的自动化与管理

水电厂自动化 2000年第1期21卷 99-102页

作者： JohnM.Wacher KhalilN.Zadeh RobertC.Meyer 章津云杨雪远 Enron Rortland General electric Zadeh Meyer Engineering.inc

美国 PGE 公司通过改造所属电站设备,提高了自动化水平,实现了每兆瓦操作人数少于0.1人,管理上了一个台阶,同时也提高了经济效益。

关键词：水电站自动化管理改造

智能化和自动化技术在造船焊接中的应用(英文)

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电焊机 2007年第6期37卷 19-27页

作者： Jeffrey Noruk Jean-Paul Boillot Randy Li President Servo Robot Corporation President & CEO Servo Robot inc. President Servo Robot

造船焊接中,焊接工艺需要优化以提高产量,同时,满足焊接标准的质量要求。然而,既使最成熟的焊接工艺,焊工所焊接操作等在其焊接准备阶段也无法“尽善尽美”。讨论了在焊前、焊中、焊后如何使用新型自动焊接设备,以减少工艺的不确定性。... 详细信息

造船焊接中,焊接工艺需要优化以提高产量,同时,满足焊接标准的质量要求。然而,既使最成熟的焊接工艺,焊工所焊接操作等在其焊接准备阶段也无法“尽善尽美”。讨论了在焊前、焊中、焊后如何使用新型自动焊接设备,以减少工艺的不确定性。减少不确定性就意味着高水平的生产和质量。智能传感技术已应用于自动化程度不同的焊接设备中,如机械化、自动化机械设备和机器人,因其柔性化和轻便化而用于多任务的自动化焊接。并给出了应用实例。

关键词：造船焊接智能化、自动化技术轻便式多任务机器人

Effects of temperature and SO_3 on re-emission of mercury from activated carbon under flue gas conditions

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Journal of Environmental Sciences 2019年第5期31卷 67-73页

作者： Michael Royko Benjamin Galloway Noah D.Meeks Bihter Padak Department of Chemical Engineering University of South Carolina Southern Company Services Inc.600 18th Street North

Mercury(Hg) is a toxic and bio-accumulating heavy metal that is predominantly released via the combustion of coal. Due to its toxicity, the Environmental Protection Agency(EPA)has introduced Mercury and Air Toxics Standards(MATS) Rule regarding allowable Hg emissions. In order to reduce emissions, power plants have widely adopted activated carbon(AC) injection. AC injection has proven to be an effective method to reduce Hg emissions, but the re-emission of previously adsorbed Hg during unit operation, likely due to changing temperature or flue gas composition, could be problematic. This study specifically examined the effects of temperature and sulfur trioxide(SO3) concentration,by ramping temperature and SO3 concentration independently and simultaneously, on AC samples that are already exposed to flue gas and saturated in presence of Hg, sulfur dioxide(SO2) and nitric oxide(NO). Of these two suspected factors to cause re-emission,temperature had the greater impact and resulted in re-emission of both elemental and oxidized Hg with a greater fraction of oxidized Hg, which can be attributed to elemental Hg being more strongly bonded to the AC surface. Surprisingly, exposing the samples to inc.easing concentrations of SO3 had nearly no effect under the conditions examined in this study, possibly as a result of the samples being already saturated with sulfur prior to the SO3 ramp tests to simulate transient conditions in the plant.

关键词： Mercury re-emission Sulfur trioxide Activated carbon

Phase Transition Phenomena in Ultra-Thin Ge2Sb2Te5 Film

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Chinese Physics Letters 2005年第7期22卷 1803-1805页

作者：刘波宋志棠刘卫丽封松林陈宝明 TheResearchCenterofFunctionalSemiconductorFilmEngineeringTechnology ShanghaiInstituteofMicrosystemandInformationTechnologyChineseAcademyofSciencesShanghai200050 SiliconStorageTechnology Inc.1171SonoraCourtSunnyvaleCA94086USA

We observe reversible phase transition phenomena in proto-type chalcogenide random access memory (C-RAM) devices adopting ultra-thin (12nm) Ge2Sb2Te5 thin film. In this kind of proto-type device, the ultra-thin amorphous Ge2Sb2Te5 thin film undergoes a crystallization process when a voltage is applied. The polycrystalline Ge2Sb2Te5 remain unchanged when the voltage is below 0.6V. A higher power is needed if the transition from polycrystalline to amorphous is expected. The re-amorphization process can be realized by applying a voltage higher than 0.7V. The threshold voltage Vth and threshold electric field Eth of the transition from the polycrystalline state to the amorphous state in this proto-type device are ~0.7V and ~5×105V/cm, respectively. The programming voltage is significantly reduced compared to the values of C-RAM devices adopting a 200-nm-thick Ge2Sb2Te5 inset.

关键词： DVD-RW CD-RW C-RAM

血管生成素的异常表达与大鼠肾小球毛细血管损失的关系及其意义

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中华肾脏病杂志 2006年第4期22卷 231-236页

作者：卢远航邓安国杨晓刘建社宋明娜李宁朱忠华华中科技大学同济医学院附属协和医院肾内科武汉430022 Morton Grove Pharmaceuticals inc. USA School of Pharmacy University of Louisiana USA

目的探讨足细胞损伤后,肾小球内血管生成素(Ang)1和Ang-2的表达改变与肾小球毛细血管丧失的关系及其意义。方法 100只健康雄性Wistar大鼠,随机分为假手术 (Sham)组30只、单侧肾切除(UNX)组30只和单侧肾切除+柔红霉素(DRB)组40只。DRB组... 详细信息

目的探讨足细胞损伤后,肾小球内血管生成素(Ang)1和Ang-2的表达改变与肾小球毛细血管丧失的关系及其意义。方法 100只健康雄性Wistar大鼠,随机分为假手术 (Sham)组30只、单侧肾切除(UNX)组30只和单侧肾切除+柔红霉素(DRB)组40只。DRB组大鼠,切除左肾后的第7、14天,从尾静脉各注射柔红霉素5 mg／kg1次。Sham组和UNX组亦同时以等量生理盐水尾静脉注射。完成上述处理后的第1、2、4、6、8周,随机取各组大鼠6只,采血和24 h尿液检测Ccr。用PAS染色、免疫组化和原位杂交进行肾组织学分析,并用TUNEL法和透射电镜检测细胞凋亡。结果与Sham组及UNX组比较,DRB组的Ang-1 mRNA和蛋白表达量呈显著下降的趋势;Ang-2 mRNA和蛋白表达量呈逐渐增高的趋势;Fas、FasL和caspase-3蛋白在肾小球内的表达也呈逐渐增高的趋势;肾小球凋亡指数(GAI)和肾小球硬化指数(GSI)呈逐步增高的趋势,而肾小球毛细血管密度(GCD)和Ccr呈逐步下降的趋势;透射电镜下可见到凋亡的内皮细胞。相关分析显示,Ang-1 mRNA和蛋白分别与Fas、FasL和caspase-3蛋白表达呈负相关,与GCD、Ccr呈正相关,与GAI、GSI呈负相关。Ang-2 mRNA和蛋白分别与Fas、FasL和 caspase-3蛋白表达呈正相关,与GCD、Ccr呈负相关。与GAI、GSI呈正相关。结论肾小球足细胞损伤后,局部Ang-1和Ang-2表达的平衡发生改变。这种变化与Fas／FasL及caspase-3凋亡途径的活化相关,并可能通过促进肾小球内皮细胞的凋亡,导致肾小球毛细血管的减损,进而促进肾小球硬化的发展。

关键词：血管生成素类柔红霉素细胞凋亡肾小球硬化足细胞