维普中文期刊产品整合服务
3638篇 您的检索式:作者名="Bose"
    题名 作者 年代 出处 被引量
1WPSS输入反馈时延的自适应分段补偿设计显示文摘广域电力系统稳定器(WPSS)是抑制电力系统区间模式振荡最有效的方法之一。WPSS以相量测量单元(PMU)量测的远方同步信号为反馈输入,在将其应用到工程实际时需要着重考虑远方信号的时延问题。从长期来看,时延通常会在一定范围内呈现一定的随机分布特性。文中设计了一种自适应分段时延补偿器,将时延分为若干个区间,对每一个区间设计时延补偿。时延补偿器根据在线量测得到的实际时延自适应地调整控制器的时延补偿区间,以达到最优补偿的目的。文中重点讨论了时延分段的方法以及时延补偿器自适应调整的规则。将提出的自适应分段时延补偿器在两区四机系统中实现,不同工况下的数值仿真结果表明了补偿器的有效性和鲁棒性。RTDS实验结果进一步表明所提方法可行且有效。该方法考虑了长时期内时延的变化,符合工程实际情况,适合于现场工程应用。陈刚 程林 张放 孙元章 Anjan BOSE 2013电力系统自动化2013,37,14:11
2基于综合几何指标的广域电力系统稳定器设计显示文摘选择适当的控制器落点和反馈信号是广域电力系统稳定器(WPSS)设计的一个关键步骤。而作为应用最为广泛的留数法,在面对多种不同类型备选信号时会因为不同类型信号幅值比例问题而失效。文中采用基于系统可观性和可控性的综合几何指标来选择控制器的落点和反馈信号,能够有效克服留数法的缺陷。重点讨论了在考虑实际电网量测和通信要求条件下的广域反馈信号选择问题,把反馈输入备选信号范围扩大到线路功率、母线频率偏差、区域惯性中心角差、机端功率及发电机角频率等。研究表明,联络线有功功率最适合作为WPSS的反馈输入信号。最后,结合设计控制器参数的留数相位补偿法完成WPSS的设计。2区4机系统算例详细说明了WPSS的设计过程,表明所提出的方法能够从不同类型的反馈信号中选择最优的信号。数值仿真结果表明,按照该方法设计的WPSS能够有效提高电网稳定性,抑制区间模式低频振荡。陈刚 程林 孙元章 Anjan BOSE 2013电力系统自动化2013,37,2:11
3不同热处理态2024铝合金的腐蚀行为(英文)显示文摘分别在3.5%NaCl溶液、3.5%NaCl+1.0%H2O2溶液和pH=12的3.5%NaCl溶液中进行动电位极化实验,研究2024 Al-Cu-Mg合金在不同热处理状态下的腐蚀行为。极化曲线表明,随着合金时效时间的延长,合金的腐蚀电位向负方向移动;向NaCl溶液中添加H2O2会使腐蚀电位正移;在pH=12的3.5%NaCl溶液中的极化曲线表现出明显的钝化现象。腐蚀试样表面表现为常见的腐蚀特征,但也有扩大的点蚀、晶间腐蚀现象出现。循环动电位极化曲线显示有宽的循环极化滞后环,不同的腐蚀模式表明合金的点蚀生长对合金的热处理状态敏感。通过显微组织分析,探讨了不同热处理状态下合金在不同NaCl溶液中的腐蚀机理。K.S.GHOSH Md.HILAL Sagnik BOSE 2013Transactions of Nonferrous Metals Society of China2013,23,11:10
4茶对人体健康的作用显示文摘茶是最流行的饮料,全世界每年生产和消费300万t茶叶。历史上茶叶曾被当作治病的药物,当今人们主要对其可以预防各种疾病的功效感兴趣。茶叶有效成分可能存在的保健作用以前已做过调查和研究,并有专门论述。本文就日前已知的有关茶及其保健作用的科研情况作一综述。Chung S. Yang Joshua Lambert 江和源 Mousumi Bose 桑圣民 翁蔚(译) 2006中国茶叶2006,28,5:9
5Hepatitis C virus infection and insulin resistance显示文摘Approximately 170 million people worldwide are chronically infected with hepatitis C virus(HCV).Chronic HCV infection is the leading cause for the development of liver fibrosis,cirrhosis,hepatocellular carcinoma(HCC)and is the primary cause for liver transplantation in the western world.Insulin resistance is one of the pathological features in patients with HCV infection and often leads to development of typeⅡdiabetes.Insulin resistance plays an important role in the development of various complications associated with HCV infection.Recent evidence indicates that HCV associated insulin resistance may result in hepatic fibrosis,steatosis,HCC and resistance to anti-viral treatment.Thus,HCV associated insulin resistance is a therapeutic target at any stage of HCV infection.HCV modulates normal cellular gene expression and interferes with the insulin signaling pathway.Various mechanisms have been proposed in regard to HCV mediated insulin resistance,involving up regulation of inflammatory cytokines,like tumor necrosis factor-α,phosphorylation of insulin-receptor substrate-1,Akt,up-regulation of gluconeogenic genes like glucose 6 phosphatase,phosphoenolpyruvate carboxykinase 2,and accumulation of lipid droplets.In this review,we summarize the available information on how HCV infection interferes with insulin signaling pathways resulting in insulin resistance.Sandip K Bose Ranjit Ray 2014World Journal of Diabetes2014,5,1:6
6Properties of boron doped ZnO films prepared by reactive sputtering method: Application to amorphous silicon thin film solar cells显示文摘Reactive sputtered boron-doped zinc oxide(BZO) film was deposited from argon,hydrogen and boron gas mixture.The reactive sputtering technique provides us the flexibility of changing the boron concentration in the produced films by using the same intrinsic zinc oxide target.Textured surface was obtained in the as-deposited films.The surface morphology and the opto-electronic properties of the films can be controlled by simply varying the gas concentration ratio.By varying the gas concentration ratio,the best obtained resistivity ~6.51×10^-4Ω-cm,mobility ~19.05 cm^2 V^-1 s^-1 and sheet resistance ~7.23Ω/□ were obtained.At lower wavelength of light,the response of the deposited films improves with the increase of boron in the gas mixture and the overall transmission in the wavelength region 350-1100 nm of all the films are>85 %.We also fabricated amorphous silicon(a-Si) thin film solar cell on the best obtained BZO layers.The overall efficiency of the a-Si solar cell is 8.14 %,found on optimized BZO layer.Sukanta Bose Sourav Mandal Asok K.Barua Sumita Mukhopadhyay 2020Journal of Materials Science & Technology2020,52,20:6
7Gravitational wave astrophysics, data analysis and multimessenger astronomy显示文摘This paper reviews gravitational wave sources and their detection. One of the most exciting potential sources of gravitational waves are coalescing binary black hole systems. They can occur on all mass scales and be formed in numerous ways, many of which are not understood. They are generally invisible in electromagnetic waves, and they provide opportunities for deep investigation of Einstein's general theory of relativity. Sect. 1 of this paper considers ways that binary black holes can be created in the universe, and includes the prediction that binary black hole coalescence events are likely to be the first gravitational wave sources to be detected. The next parts of this paper address the detection of chirp waveforms from coalescence events in noisy data.Such analysis is computationally intensive. Sect. 2 reviews a new and powerful method of signal detection based on the GPUimplemented summed parallel infinite impulse response filters. Such filters are intrinsically real time alorithms, that can be used to rapidly detect and localise signals. Sect. 3 of the paper reviews the use of GPU processors for rapid searching for gravitational wave bursts that can arise from black hole births and coalescences. In sect. 4 the use of GPU processors to enable fast efficient statistical significance testing of gravitational wave event candidates is reviewed. Sect. 5 of this paper addresses the method of multimessenger astronomy where the discovery of electromagnetic counterparts of gravitational wave events can be used to identify sources, understand their nature and obtain much greater science outcomes from each identified event.LEE Hyung Mok LE BIGOT Eric-Olivier DU ZhiHui LIN ZhangXi GUO XiangYu WEN LinQing PHUKON Khun Sang PANDEY Vihan BOSE Sukanta FAN Xi-Long HENDRY Martin 2015Science China(Physics,Mechanics & Astronomy)2015,58,12:5
8Mild closed head traumatic brain injury-induced changes in monoamine neurotransmitters in the trigeminal subnuclei of a rat model:mechanisms underlying orofacial allodynias and headache显示文摘Our recent findings have demonstrated that rodent models of closed head traumatic brain injury exhibit comprehensive evidence of progressive and enduring orofacial allodynias, a hypersensitive pain response induced by non-painful stimulation. These allodynias, tested using thermal hyperalgesia, correlated with changes in several known pain signaling receptors and molecules along the trigeminal pain pathway, especially in the trigeminal nucleus caudalis. This study focused to extend our previous work to investigate the changes in monoamine neurotransmitter immunoreactivity changes in spinal trigeminal nucleus oralis, pars interpolaris and nucleus tractus solitaries following mild to moderate closed head traumatic brain injury, which are related to tactile allodynia, touch-pressure sensitivity, and visceral pain. Our results exhibited significant alterations in the excitatory monoamine, serotonin, in spinal trigeminal nucleus oralis and pars interpolaris which usually modulate tactile and mechanical sensitivity in addition to the thermal sensitivity. Moreover, we also detected a robust alteration in the expression of serotonin, and inhibitory molecule norepinephrine in the nucleus tractus solitaries, which might indicate the possibility of an alteration in visceral pain, and existence of other morbidities related to solitary nucleus dysfunction in this rodent model of mild to moderate closed head traumatic brain injury. Collectively, widespread changes in monoamine neurotransmitter may be related to orofacial allodynhias and headache after traumatic brain injury.Golam Mustafa Jiamei Hou Rachel Nelson Shigeharu Tsuda Mansura Jahan Naweed S.Mohammad Joseph V.Watts Floyd J.Thompson Prodip Bose 2017Neural Regeneration Research2017,12,6:5
9用磁带法对铁磁材料疲劳的研究显示文摘Bose,MSC 傅国英 1991无损探伤1991,15,1:3
10Suspended load in flows on erodible bed显示文摘Steady state suspended-load of sediment transported in flow over erodible beds usually is treated by the advection-diffusion approach, though in recent years, it is being treated as a two-phase flow phenomenon incorporating kinetics of sediment particles. Among the advection-diffusion approaches, Rouse's equation is the well-known, although a number of researchers in later periods have attempted to improve it by modifying the mixing length concept taking into account other aspects. In this paper, the advection-diffusion approach and associated logarithmic law of flow velocity are revisited. It is concluded from the logarithmic law that the Reynolds shear stress is a linear function of height above the bed, which reduces to bed shear stress in the case of a long horizontal channel. As a consequence, it is shown that the volumetric concentration of sediment is best approximated by the sum of two power laws of height above the bed. An equation is derived for the suspended-load transport rate in terms of elementary functions.Sujit K. BOSE Subhasish DEY 2009International Journal of Sediment Research2009,24,3:3
11Role of angiotensin-converting enzyme inhibitors and angiotensin receptor blockers in cryoballoon ablation outcomes for paroxysmal atrial fibrillation显示文摘BACKGROUND Cryoballoon ablation(CBA)is recommended for patients with paroxysmal atrial fibrillation(AF)refractory to antiarrhythmic drugs.However,only 80%of patients benefit from initial CBA.There is growing evidence that pretreatment with angiotensin-converting enzyme inhibitors(ACEIs)and angiotensin receptor blockers(ARBs)decreases the recurrence of AF postablation,particularly in nonparoxysmal AF undergoing radiofrequency ablation.The role of ACEIs and ARBs in patients with paroxysmal AF in CBA remains unknown.We decided to investigate the role of ACEIs and ARBs in preventing the recurrence of atrial arrhythmia(AA)following CBA for paroxysmal AF.AIM To investigate the role of ACEIs and ARBs in preventing recurrence of AA following CBA for paroxysmal AF.METHODS We followed 103 patients(age 60.6±9.1 years,29%women)with paroxysmal AF undergoing CBA 1-year post procedure.Recurrence was assessed by documented AA on electrocardiogram or any form of long-term cardiac rhythm monitoring.A multivariable Cox proportional hazard model was used to assess if ACEI or ARB treatment predicted the risk of AA recurrence.RESULTS After a 1-year follow-up,19(18.4%)participants developed recurrence of AA.Use of ACEI or ARB therapy was noted in the study population.Patients on ACEI/ARB had a greater prevalence of hypertension and coronary artery disease.On a multivariate model adjusted for baseline demographics and risk factors for AF,ACEI or ARB therapy did not prevent recurrence of AA following CBA(P=0.72).Similarly,on Kaplan–Meier analysis pretreatment with ACEI/ARB did not predict the time to first recurrence of AA(P=0.2173).CONCLUSION In our study population,preablation treatment with an ACEI or ARB had no influence on the recurrence of AA following CBA for paroxysmal AF.Ibragim Al-Seykal Abhishek Bose Parag A Chevli Zeba Hashmath Nitish Sharma Ajay K Mishra Douglas Laidlaw 2022World Journal of Cardiology2022,14,10:2
12用于白内障超声乳化训练的活体白内障动物模型(英文)显示文摘目的:制备用于白内障超声乳化训练的活体白内障动物模型。方法:狗在全身麻醉下用26号带有斜面的针刺破左眼的晶状体前囊,制备白内障模型,形成白内障后,行超声乳化手术。结果:眼部检查显示晶状体后部皮质混浊开始于穿刺术后5~7d,并于术后75d白内障全部形成,在所有的白内障形成的眼上行超声乳化手术,并植入人工晶状体,所有的狗均恢复了视力。结论:考虑到无经验的眼科医生在行白内障超声乳化手术的初始阶段引起的巨大损失,我们认为这个活的动物模型明显优于目前用于训练超声乳化手术的尸体眼。Sarbani Hazra Dipak K De Arup K Bose Biswarup Roy 2008国际眼科杂志2008,8,6:2
13A model formative assessment strategy to promote student-centered self-regulated learning in higher education显示文摘Jayakumar Bose Zed Rengel 2009美中教育评论2009,6,12:2
14Nanog transforms NIH3T3 cells and targets cell-type restricted genes显示文摘Dan Piestun Bose S. Kochupurakkal Jasmine Jacob-Hirsch Sharon Zeligson Mark Koudritsky Eytan Domany Ninette Amariglio Gideon Rechavi David Givol 2006Biochemical and Biophysical Research Communications2006,,1:2
15Aluminothermic Reduction of K_2ZrF_6 for Preparation of Al-Zr Master Alloy显示文摘luminothermicReductionofK2ZrF6forPreparationofAlZrMasterAloyRajagopalanP.K.,SharmaI.G.andKrishnanT.S.MaterialsProcesingDivis...Rajagopalan P.K., Sharma I.G. and Krishnan T.S. Materials Processing Division, Bhabha Atomic Research Centre, Mumbai 400085, India Bose D.K. Uranium Extraction Division, Bhabha Atomic Research Centre, Mumbai 400085, India 1999Rare Metals1999,18,2:2
16Recursive reconstruction of high resolution image from noisy undersampled multiframes 显示文摘Kim S P Bose N K Valenzuela H M 1990IEEE Trans Acoust Speech Signal Processing1990,38,6:1
17Efficacy of zinc in the treatment of severe pneumonia in hospitalized children < 2 y old 显示文摘Bose A Coles CL Gunavathi 2006Am J Clin Nutr2006,83,:1
18The membrane-cytoskeleton linker ezrin is necessary for osteosarcoma metastasis 显示文摘Khanna C Wan X Bose S 2004Nat Med2004,10,2:1
19Power electroniesl and motion control--technology status and recent 显示文摘BOSE B K 1993IEEE Trans on I A1993,29,5:1
20Zero-valent iron-assisted autotrophic denitrification显示文摘Susham Biswas Pumendu Bose 2005Joumal of Environmental Engineering2005,131,8:1
返回顶部 每页显示:
共182页 首页 上一页 第1页 下一页 末页 /182 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费