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128篇 您的检索式:作者名="Chirag"
    题名 作者 年代 出处 被引量
1Pseudolymphoma (reactive lymphoid hyperplasia) of the liver:A clinical challenge显示文摘Reactive lymphoid hyperplasia(RLH), also known as pseudolymphoma or nodular lymphoid lesion of the liver is an extremely rare condition, and only 51 hepatic RLH cases have been described in the literature since the first case was described in 1981. The majority of these cases were asymptomatic and incidentally found through radiological imaging. The precise etiology of hepatic RLH is still unknown, but relative high prevalence of autoimmune disorder in these cases suggests an immune-based liver disorder. Imaging features of hepatic RLH often suggest malignant lesions such as hepatocellular carcinoma and cholangiocarcinoma. In this report, we discuss two cases of hepatic RLH in patients with autoimmune hepatitis. We also present pathologic and magnetic resonance imaging findings, including one case utilizing a hepatocellular contrast agent, Eovist. Definitive diagnosis of hepatic RLH often requires surgical excision.Yong Kyong Kwon Reena C Jha Kambiz Etesami Thomas M Fishbein Metin Ozdemirli Chirag S Desai 2015World Journal of Hepatology2015,7,26:8
2Prolonged penile strangulation with metal clamps显示文摘各种各样的不同目标被报导了勒死阴茎。我们在使用的金属散热器在很长时间夹钳的一个病人上报导了。Workup 包括了历史,体格检查和尿分析法。病人与膀胱尿道镜检查为进一步的评估被带去手术室,矫形电线切割器被用来打破金属乐队。Chirag Patel Richard Kim Michael Delterzo 2006Asian Journal of Andrology2006,8,1:4
3Microstructural homogeneity and mechanical behavior of a selective laser melted Ti-35Nb alloy produced from an elemental powder mixture显示文摘Although using elemental powder mixtures may provide broad alloy selection at low cost for selective laser melting(SLM), there is still a concern on the resultant microstructural and chemical homogeneity of the produced parts. Hence, this work investigates the microstructure and mechanical properties of a SLM-produced Ti-35 Nb composite(in wt%) using elemental powder. The microstructural characteristics including ? phase, undissolved Nb particles and chemical homogeneity were detailed investigated.Nanoindentation revealed the presence of relatively soft undissolved Nb particles and weak interface bonding around Nb-rich regions in as-SLMed samples. Solid-solution treatment can not only improve chemical homogeneity but also enhance bonding through grain boundary strengthening, resulting in43 % increase in tensile elongation for the heat-treated Ti-35 Nb compared to the as-SLMed counterpart. The analyses of tensile fractures and shear bands further confirmed the correlation between the different phases and the ductility of Ti-35 Nb. In particular, the weak bonding between undissolved Nb and the matrix in the as-SLMed sample reduces its ductility while the ? grains in solid-solution treated Ti-Nb alloy can induce a relatively stable plastic flow therefore better ductility. This work sheds insight into the understanding of homogenization of microstructure and phases of SLM-produced alloys from an elemental powder mixture.Jincheng Wang Yujing Liu Chirag Dhirajlal Rabadia Shun-Xing Liang Timothy Barry Sercombe Lai-Chang Zhang 2021Journal of Materials Science & Technology2021,,2:4
4Experimental investigations of transient pressure variations in a high head model Francis turbine during start-up and shutdown显示文摘Penetration of the power generated using wind and solar energy to electrical grid network causing several incidents of the grid tripping, power outage, and frequency drooping. This has increased restart(star-stop) cycles of the hydroelectric turbines significantly since grid connected hydroelectric turbines are widely used to manage critical conditions of the grid. Each cycle induces significant stresses due to unsteady pressure loading on the runner blades. The presented work investigates the pressure loading to a high head( H P=377 m, DP =1.78 m) Francis turbine during start-stop. The measurements were carried out on a scaled model turbine( H M=12.5 m, DM =0.349 m). Total four operating points were considered. At each operating point, three schemes of guide vanes opening and three schemes of guide vanes closing were investigated. The results show that total head variation is up to 9% during start-stop of the turbine. On the runner blade, the maximum pressure amplitudes are about 14 kPa and 16 kPa from the instantaneous mean value of 121 kPa during rapid start-up and shutdown, respectively, which are about 1.5 times larger than that of the slow start-up and shutdown. Moreover, the maximum pressure fluctuations are given at the blade trailing edge.TRIVEDI Chirag CERVANTES Michel J. GANDHI B.K. OLE DAHLHAUG G. 2014Journal of Hydrodynamics2014,26,2:4
5Over-nutrition and metabolic cardiomyopathy显示文摘Chirag H. Mandavia Lakshmi Pulakat Vincent DeMarco James R. Sowers 2012Metabolism2012,,9:2
6Perioperative glucose management and outcomes in liver transplant recipients: A qualitative systematic review显示文摘AIM To investigate the relationship between post-liver transplantation(LT) glycemic control and LT outcomes. METHODS A qualitative systematic review on relevant prospective interventions designed to control glucose levels including insulin protocols. Studies investigating an association between glycemic control and post-LT outcomes such as mortality, graft rejection, and infection rate were reviewed. Pub Med, EMBASE, and other databases were searched through October 2016. RESULTS Three thousands, six hundreds and ninety-two patients from 14 studies were included. Higher mortality rate was seen when blood glucose(BG) ≥ 150 mg/dL(P = 0.05). BG ≥ 150 mg/dL also led to higher rates of infection. Higher rates of graft rejection were seen at BG > 200 mg/dL(P < 0.001). Mean BG ≥ 200 mg/dL was associated with more infections(P = 0.002).Nurse-initiated protocols and early screening strategies have shown a reduction in negative post-LT outcomes.CONCLUSION Hyperglycemia in the perioperative period is associated with poor post-LT outcomes. Only a few prospective studies have designed interventions aimed at managing post-LT hyperglycemia, post-transplant diabetes mellitus(PTDM) and their impact on post-LT outcomes.Prani Paka Sarah R Lieber Ruth-Ann Lee Chirag S Desai Robert E Dupuis Alfred Sidney Barritt 2018World Journal of Transplantation2018,8,3:2
7Design and development of guide vane cascade for a low speed number Francis turbine显示文摘Guide vane cascade of a low speed number Francis turbine is developed for the experimental investigations.The test setup is able to produce similar velocity distributions at the runner inlet as that of a reference prototype turbine.Standard analytical methods are used to design the reference turbine.Periodic walls of flow channel between guide vanes are identified as the starting profile for the boundary of the cascade.Two alternative designs with three guide vanes and two guide vanes,without runner,are studied.A new approach,for the hydraulic design and optimization of the cascade test setup layout,is proposed and investigated in details.CFD based optimization methods are used to define the final layout of the test setup.The optimum design is developed as a test setup and experimental validation is done with PIV methods.The optimized design of cascade with one guide vane between two flow channels is found to produce similar flow conditions to that in the runner inlet of a low speed number Francis turbine.Biraj Singh THAPA Chirag TRIVEDI Ole Gunnar DAHLHAUG 2016Journal of Hydrodynamics2016,28,4:2
8Numerical simulation of low-concentration CO_(2) adsorption on fixed bed using finite element analysis显示文摘Accurately predicting distributions of concentration and temperature field in fixed-bed column is essential for designing adsorption processes.In this study,a two-dimensional(2D),axisymmetric,nonisothermal,dynamic adsorption model was established by coupling equations of mass,momentum and energy balance,and solved by finite element analysis.The simulation breakthrough curves fit well with the low-concentration CO_(2) adsorption experimental data,indicating the reliability of the established model.The distributions of concentration and temperature field in the column for CO_(2) adsorption and separation from CO_(2)/N_(2) were obtained.The sensitivity analysis of the adsorption conditions shows that the operation parameters such as feed flow rate,feed concentration,pellet size,and column height-to-diameter ratio produce a significant effect on the dynamic adsorption performance.The multi-physics coupled 2D axisymmetric model could provide a theoretical foundation and guidance for designing CO_(2) fixed-bed adsorption and separation processes,which could be extended to other mixed gases as well.Yonghou Xiao Shuang Qiu Qidong Zhao Yuhao Zhu Chirag BGodiya Gaohong He 2021Chinese Journal of Chemical Engineering2021,34,8:2
9A keto fatty acid from Lagerstroemia specious seed oil显示文摘Jehan Chirag Mahmood Daulatabad D 1990Phytochemistry1990,29,7:1
10Robotic‐assisted laparoscopic abdominoperineal resection for anal cancer: feasibility and technical considerations显示文摘Chirag B.Patel Diego I.Ramos‐Valadez Eric M.Haas 2010Int J Med Robotics Comput Assist Surg2010,,4:1
11DWT Based robust tech- nique of watermarking applied on digital images显示文摘CHIRAG S DEEPAK P 2012International Journal of Soft Computing and Engineer- ing2012,2,2:1
12The impact of hepatitis C virus coinfection on HIV-related kidney disease: a systematic review and meta-analysis显示文摘Christina M Wyatt Carlos Malvestutto Steven G Coca Paul E Klotman Chirag R Parikh 2008AIDS2008,,14:1
13印度棉花的市场状况与发展方向显示文摘从历史角度来讲,印度被认为是棉花行业的摇篮,棉花的种植一直是印度农业非常重要的一个组成部分。给4500万人直接提供或者间接提供了就业机会.所以当我们提到棉花时.肯定要讲到印度棉花工业的情况。Chirag Lakhani 2013中国纤检2013,,13:1
14Bioelectricity production using microbial fuel cell显示文摘CHIRAG K YAGNIK B 2013Research Journal of Bio Technology2013,8,3:1
15Scrotal pain: Evaluation and management显示文摘Chirag G Gordhan Hossein Sadeghi-Nejad 2015Korean J Uro12015,56,1:1
16宿主易感因素与葡萄膜黑色素瘤的关联META分析显示文摘目的:用META分析法通过病例观察,探讨宿主易感因素与葡萄膜黑色素瘤的关联。Ezekiel Weis Chirag P. Shah Martin Lajous Jerry A. Shields Carol L Shields 刘亮(译) 2006美国医学会眼科杂志(中文版)2006,18,4:1
17Selection and maintenance off a cadaver donor for liver transplantation显示文摘Chirag J Desai 2012Apollo Medicine2012,9,1:1
18Power quality index based on discrete wavelet transform显示文摘Chirag A. Naik Prasanta Kundu 2013International Journal of Electrical Power and Energy Systems2013,,:1
19Serum lactate is associated with mortality in severe sepsis independent of organ failure and shock显示文摘Mark E. Mikkelsen Andrea N. Miltiades David F. Gaieski Munish Goyal Barry D. Fuchs Chirag V. Shah Scarlett L. Bellamy Jason D. Christie 2009Critical Care Medicine2009,,5:1
20Patient Satisfaction and Symptomatic Outcomes Following Stapled Transanal Rectal Resection for Obstructed Defecation Syndrome显示文摘Chirag B. Patel Madhu Ragupathi Nilesh H. Bhoot T. Bartley Pickron Eric M. Haas 2011Journal of Surgical Research2011,,1:1
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