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| 1 | Pushover analysis of underground structures:Method and application显示文摘Pushover analysis is common because of its conceptual simplicity and computational attractiveness in computing seismic demand.Considering that traditional pushover analysis is restricted in underground structures due to the stark differences in the seismic response characteristics of surface structures,this paper proposes a pushover analysis method for underground structures and its application in seismic damage assessment.First,three types of force distribution are presented based on ground response analysis.Next,the target displacements and analysis models are established according to force-based and performance-based design.Then,the pushover analysis procedure for underground structures is described.Next,the applicability of pushover analysis to underground structures is verified by comparing the responses of a Chongwenmen subway station determined by the proposed procedure and by nonlinear response history analysis.In addition,two other points are made:that the inverted triangular distribution of effective earthquake acceleration is more practical than the other two distributions,and that performance-based design is more effective than force-based design.Finally,a cyclic reversal loading pattern based on one cycle of reversal loads as an earthquake event is presented and applied to the seismic damage assessment of underground structures.The results show that the proposed pushover analysis can be effectively applied to the seismic design and damage assessment of underground structures. | LIU JingBo WANG WenHui DASGUPTA Gautam | 2014 | Science China(Technological Sciences)2014，57，2： | 20 |
| 2 | The current status of robot-assisted radical prostatectomy显示文摘帮助机器人的激进的前列腺切除术(RARP ) 是为局部性的前列腺癌症的治疗的一种很快演变的技术。在美国,超过 65% 激进的前列腺切除术是帮助机器人的,尽管在欧洲和世界的其余部分的这种技术的接受有点更慢。这篇文章关于 oncological,克制和力量结果鈥搕h e 在 RARP 上考察当前的文学所谓的“三连胜”。初步的数据看起来证明与减少的血损失,在开的前列腺切除术上的 RARP 的一个优点减少了疼痛,早动员,更短的医院停留和更低的边缘评价。大多数研究与 RARP 显示出好手术后的克制和力量;然而,这需要在在文学可得到的使随机化的数据的少量的上下文被看。没有权威的证据证明超越标准 laparoscopy 的一个优点,而是这种技术在 5 年以内与 laparoscopy 到达了同等值的事实是令人鼓舞的。最后,发展单个港口的机器的前列腺切除术,指导激光的机器人学,没有导管的前列腺切除术和指导图象的机器人学的技术被讨论。 | Prokar Dasgupta Roger S. Kirby | 2009 | Asian Journal of Andrology2009，11，1： | 15 |
| 3 | Potential therapeutic roles of retinoids for prevention of neuroinflammation and neurodegeneration in Alzheimer’s disease显示文摘All retinoids, which can be natural and synthetic, are chemically related to vitamin A. Both natural and synthetic retinoids use specific nuclear receptors such as retinoic acid receptors and retinoid X receptors to activate specific signaling pathways in the cells. Retinoic acid signaling is extremely important in the central nervous system. Impairment of retinoic acid signaling pathways causes severe pathological processes in the central nervous system, especially in the adult brain. Retinoids have major roles in neural patterning, differentiation, axon outgrowth in normal development, and function of the brain. Impaired retinoic acid signaling results in neuroinflammation, oxidative stress, mitochondrial malfunction, and neurodegeneration leading to progressive Alzheimer’s disease, which is pathologically characterized by extra-neuronal accumulation of amyloid plaques(aggregated amyloid-beta) and intra-neurofibrillary tangles(hyperphosphorylated tau protein) in the temporal lobe of the brain. Alzheimer’s disease is the most common cause of dementia and loss of memory in old adults. Inactive cholinergic neurotransmission is responsible for cognitive deficits in Alzheimer’s disease patients. Deficiency or deprivation of retinoic acid in mice is associated with loss of spatial learning and memory. Retinoids inhibit expression of chemokines and neuroinflammatory cytokines in microglia and astrocytes, which are activated in Alzheimer’s disease. Stimulation of retinoic acid receptors and retinoid X receptors slows down accumulation of amyloids, reduces neurodegeneration, and thereby prevents pathogenesis of Alzheimer’s disease in mice. In this review, we described chemistry and biochemistry of some natural and synthetic retinoids and potentials of retinoids for prevention of neuroinflammation and neurodegeneration in Alzheimer’s disease. | Bhaskar C. Das Somsankar Dasgupta Swapan K. Ray | 2019 | Neural Regeneration Research2019，14，11： | 12 |
| 4 | Semiconductor nanowires for photovoltaic and photoelectrochemical energy conversion显示文摘 | Nell P. Dasgupta Peidong Yang | 2014 | Frontiers of physics2014，9，3： | 8 |
| 5 | 经腹机器人辅助腹腔镜肾部分切除术治疗T2期肾肿瘤的国际多中心临床研究显示文摘目的通过国际多中心研究探讨临床T2期肾肿瘤行经腹机器人辅助腹腔镜肾部分切除术的安全性及有效性。方法回顾性分析2012年1月至2017年12月国际19家泌尿中心378例临床T2期肾肿瘤行经腹机器人肾部分切除术和经腹机器人根治性肾切除术患者的临床资料。根据手术方式不同,分为部分切除组和根治组。部分切除组159例,男118例,女41例;年龄(59.3±13.2)岁,体重指数(28.7±5.4) kg/m^2,术前GFR (77.3±22.1)ml/min;肿瘤位于左侧72例,右侧87例;肿瘤直径(83±16)mm;R.E.N.A.L.评分(8.6±2.2)分。根治组219例,男156例,女63例;年龄(62.0±12.9)岁,体重指数(28.7±6.1) kg/m^2,术前GFR (71.4±20.3)ml/min;肿瘤位于左侧112例,右侧105例,双侧2例;肿瘤直径(92±25)mm;R.E.N.A.L.评分(9.7±1.5)分。两组患者性别、体重指数、肿瘤位置的差异均无统计学意义(P〉0.05)。部分切除组患者年龄、肿瘤直径、R.E.N.A.L.评分均低于根治组(P〈0.05),术前GFR优于根治组(P=0.012)。比较两组围手术期资料、肿瘤病理类型、随访时间、复发时间及术后GFR等。结果378例手术均顺利完成。部分切除组手术时间中位值150 min(65-353 min),短于根治组[180 min(85-361 min),P〈0.001],术中出血量中位值150 ml(40-3 000 ml),多于根治组[100 ml (10-1 100 ml),P〈0.001]。术中并发症发生率部分切除组为5.7%(9/159),根治组为3.2%(7/219),两组差异无统计学意义(P=0.240)。部分切除组术后并发症发生率高于根治组[19.5%(31/159)与10.5%(23/219),P=0.014],但≥3级并发症发生率的差异无统计学意义[4.4%(7/159)与2.3%(5/219),P=0.246]。部分切除组无复发生存率高于根治组[91.4%(117/128)与81.9%(167/204),P=0.013]。部分切除组术后GFR降低值16.9 ml/min(10.4-84.7 ml/min)明显少于根治组29.0 ml/min(14.0-54.0 ml/min),肾部分切除术更利于术后肾功能的保护(P〈0.001)。结论临床T2期肾肿瘤行机器人肾部分切除术可获得有效的肿瘤控制率,同时可以更好地保护肾功能,可作为临床T2期肾肿瘤有效的手术方式。 | 过菲 张超 王富博 王林辉 杨庆 叶华茂 吕晨 肖成武 汪洋 Giuseppe Simone Ithaar Derweesh Andrea Minervini Daniel Eun Francesco Porpiglia Sisto Perdona James Porter Matteo Ferro Alexandre Mottrie Robert Uzzo Luigi Schips Wesley White Ken Jacobsohn Prokar Dasgupta Riccardo Autorino Clayton Lau Chandru Sundaram Umberto Capitanio 孙颖浩 杨波 | 2018 | 中华泌尿外科杂志2018，39，6： | 8 |
| 6 | 不同术式治疗白内障患者术后干眼情况比较(英文)显示文摘目的:从主客观方面比较超声乳化术(PKE)和手法小切口白内障手术(SICS)术后致干眼的研究,并对致病因素进行分析。方法:单中心前瞻性研究。选取2013-07/2014-12接受同一医生治疗白内障手术及人工晶体植入术患者,100例患者100眼分为两组(第一组:50例50眼手法小切口白内障手术患者;第二组:50例50眼超声乳化术患者)。术后所有干眼患者都作表记录,从主客观方面评估其第1、4、12wk术后干眼情况,并分析其致病诱因。结果:干眼测试(DET)值在主客观方面无显著差异(P>0.05)。相较于各自术前值,尽管期间无显著变化(P>0.05),两组在第12wk目标干眼测试值呈持续下降趋势(P<0.05)。超声乳化术在第12wk结束时干眼测试值更主观。结论:白内障术后干眼症是不可避免的。在术后12wk前超声乳化术组和手法小切口白内障手术组术后干眼测试值影响相似。进一步研究需要更多样本、更长随访时间的随机多中心临床试验来证实。 | Sushobhan Dasgupta Renu Gupta | 2016 | 国际眼科杂志2016，16，10： | 7 |
| 7 | Earthquake swarms near eastern Himalayan Syntaxis along Jiali Fault in Tibet:A seismotectonic appraisal显示文摘The seismotectonic characteristics of ten repeated earthquake swarm sequence within a seismic cluster along Jiali Fault in eastern Himalayan Syntaxis(EHS) have been analysed.The swarms are spatially disposed in and around Yigong Lake(a natural lake formed by blocking of Yigong River by landslide) and are characterized by low magnitude,crustal events with low to moderate b values.Ms:mb discriminant functions though indicate anomalous nature of the earthquakes within swarm but are considered as natural events that occurred under condition of high apparent stress and stress gradients.Composite fault plane solutions of selected swarms indicate strike-slip sense of shear on fault planes;solution parameters show low plunging compression and tensional axes along NW-SE and NE-SW respectively with causative fault plane oriented ENE-WSW.dipping steeply towards south or north.The fault plane is in excellent agreement with the disposition and tectonic movement registered by right lateral Jiali Fault.The process of pore pressure perturbation and resultant 'r—t plot' with modelled diffusivity(D = 0.12 m^2/s) relates the diffusion of pore pressure to seismic sequence in a fractured poro-elastic fluid saturated medium at average crustal depth of 15-20 km.The low diffusivity depicts a highly fractured interconnected medium that is generated due to high stress activity near the eastern syntaxial bent of Himalaya.It is proposed that hydro fracturing with respect to periodic pore pressure variations is responsible for generation of swarms in the region.The fluid pressure generated due to shearing and infiltrations of surface water within dilated seismogenic fault(Jiali Fault) are causative factors. | Basab Mukhopadhyay Sujit Dasgupta | 2015 | Geoscience Frontiers2015，6，5： | 6 |
| 8 | Genetic variation in relation to adaptability of three mangrove species from the Indian Sundarbans assessed with RAPD and ISSR markers显示文摘Rich genetic polymorphism is important for plants to adapt to changes because it enables the plant to make anatomical,physiological and biochemical changes in response to abiotic stress.Geomorphologic characteristics,demographic interference and a cumulative decrease in freshwater influx in the Indian Sundarbans region have proved detrimental to some economically important plants.In this study,genetic polymorphism of three mangrove species,Xylocarpus granatum,Excoecaria agallocha,and Phoenix paludosa,was assessed using RAPD and ISSR molecular markers.X.granatum,already in distress in the Sundarbans,had the least genetic polymorphism,14.56%in the RAPD analysis and 12.92% in the ISSR.Relatively higher genetic polymorphism was recorded for the profusely growing E.agallocha and P.paludosa: 24.66 and26.4% in RAPD; 24.87 and 20.32% in ISSR analysis respectively.A UPGMA dendrogram constructed using the similarity matrix from RAPD,ISSR and combined datashowed that for X.granatum,the least and highest salinity zones clustered together,whereas for E.agallocha and P.paludosa,higher and lower salinity areas clustered in different clades.Nei's genetic diversity,calculated from RAPD and ISSR data,was also in accordance with 0.0637 and 0.0583 for X.granatum,respectively,much lower than0.0794 and 0.0818 for E.agallocha and 0.0799 and 0.0688 for P.paludosa.This opposing degree of polymorphism might be attributed to the profusely growing E.agallocha and P.paludosa and precarious status of X.granatum throughout the Indian Sundarbans. | Nirjhar Dasgupta Paramita Nandy Chandan Sengupta Sauren Das | 2018 | Journal of Forestry Research2018，29，2： | 3 |
| 9 | Fault analysis method of integrated high voltage direct current transmission lines for onshore wind farm显示文摘Voltage source converter(VSC) based high voltage direct current(HVDC) transmission is most suited for the wind farm as it allows flexibility for reactive power control in multi-terminal transmission lines and transmits low power over smaller distance. In this work, a new method has been proposed to detect the fault, identify the section of faults and classify the pole of the fault in DC transmission lines fed from onshore wind farm. In the proposed scheme, voltage signal from rectifier end terminal is extracted with sampling frequency of 1 k Hz given as the input to the detection, classification and section discrimi-nation module. In this work, severe AC faults are also considered for section discrimination. Proposed method uses fuzzy inference system(FIS) to carry out all relaying task. The reach setting of the relay is 99.9% of the transmission line. Besides, the protection covers and discriminates the grounding fault with fault resistance up to 300 Ω.Considering the results of the proposed method, it can beused effectively in real power network. | Shobha AGARWAL Aleena SWETAPADMA Chinmoy PANIGRAHI Abhijit DASGUPTA | 2019 | Journal of Modern Power Systems and Clean Energy2019，7，3： | 2 |
| 10 | The Stewart platform manipulator: a review显示文摘 | Bhaskar Dasgupta T.S. Mruthyunjaya | 1999 | Mechanism and Machine Theory1999，，1： | 2 |
| 11 | A newton-euler formulation for the inverse dynamics of the stewart platform manipulator 显示文摘 | Dasgupta B Mruthyunjaya T S | 1998 | Mechanism and Machine Theory1998，33，8： | 2 |
| 12 | A general strategy based on the Newton-Euler approach for the dynamic formation of parallel manipulators显示文摘 | Dasgupta B Choudhury P | 1999 | Mechanism and Machine Theory1999，34，： | 2 |
| 13 | Amniotic fluid: Source of trophic factors for the developingintestine显示文摘The gastrointestinal tract(GIT) is a complex system, which changes in response to requirements of the body. GIT represents a barrier to the external environment. To achieve this, epithelial cells must renew rapidly. This renewal of epithelial cells starts in the fetal life under the influence of many GIT peptides by swallowing amniotic fluid(AF). Development and maturation of GIT is a very complex cascade that begins long before birth and continues during infancy and childhood by breastfeeding. Many factors like genetic preprogramming, local and systemic endocrine secretions and many trophic factors(TF) from swallowed AF contribute and modulate the development and growth of the GIT. GIT morphogenesis, differentiation and functional development depend on the activity of various TF in the AF. This manuscript will review the role of AF borne TF in the development of GIT. | Soham Dasgupta Shreyas Arya Sanjeev Choudhary Sunil K Jain | 2016 | World Journal of Gastrointestinal Pathophysiology2016，7，1： | 2 |
| 14 | Economic Analysis of Diversified Rotational Cropping Systems in the Lateritic Belt of Lower Gangetic Plain of Eastern India显示文摘 | D. Mandal K. Baral D. C. Ghosh J. Timsina M. K. Dasgupta | 2011 | Journal of Agricultural Science and Technology(B)2011，1，3： | 2 |
| 15 | A Newton-Euler formulation for the inverse dynamics of the Stewart platform manipulator显示文摘 | Bhaskar Dasgupta T.S. Mruthyunjaya | 1998 | Mechanism and Machine Theory1998，，8： | 2 |
| 16 | Measurement of mercaptans in ga-soline显示文摘 | Lei wei Dasgupta Purnendu K | 1989 | Mikrochim Acta1989，3，12： | 2 |
| 17 | Modelling and dynamics of single-stage pressure relief valve with directional damping显示文摘 | Dasgupta K Karmakar R | 2002 | Simulation Modelling Practice and Theory2002，10，1： | 1 |
| 18 | Dynamic analysis of piloted pressure relief valve 显示文摘 | Dasgupta K Karmakar P | 2002 | Simulation Modeling Practice and Theory2002，，10： | 1 |
| 19 | Role of failure- mechanism identification in accelerated testing 显示文摘 | HU J M BARKER D DASGUPTA A | 1993 | J of the IES1993，，2123： | 1 |
| 20 | Nicotine inhibits apoptosis induced by chemotherapeutic drugs by up-regulating XIAP and survivin显示文摘 | Dasgupta P Kinkade R Joshi B | 2006 | Proc Natl Acad Sci USA2006，103，16： | 1 |
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