|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Computational study of different venturi and orifice type hydrodynamic cavitating devices显示文摘This paper reports optimization of various geometrical parameters of two types of hydrodynamic cavitation reactors(HC) such as venturi type and orifice type. Mostly orifice and venturi nozzles are used as HC reactor, a simple valve can also be used to cause cavitation which depends on geometry and area of opening. Different operating and geometrical parameters such as divergence angle, throat height/diameter to length ratio, number of holes and inlet pressure to the cavitating device were selected to study the inception, growth and dynamics of cavities. In this work, a comprehensive computational fluid dynamics simulation is performed to numerically investigate the 3-D flow behaviors within HC reactors using cavitational model with standard k-ε Turbulence model. The study of different geometries of venturi type HC reactor(like slit, circular and elliptical) shows that 1:1 of the ratio of throat height/diameter to length ando 6.5 of divergence angle is an optimum geometry for best cavitational activity. In case of orifice, 1:3 of the ratio of diameter to length is best for cavitation and an increase in the total flow area increases the cavitational yield. | Kuldeep Virendra Kumar SAHARAN | 2016 | Journal of Hydrodynamics2016，28，2： | 11 |
| 2 | Endoscopic management of postcholecystectomy biliary leakage显示文摘BACKGROUND: Biliary leak is an uncommon but significant complication following cholecystectomy. Endotherapy is an established method of treatment. However, the optimal intervention is not known. METHOD: Eighty-five patients with postcholecystectomy biliary leaks from July 2000 to March 2009 were retrospectively evaluated. RESULTS: The study population was 20 males and 65 females with a mean age of 42.47 years. Patients presented with abdominal pain (46), jaundice (23), fever (23), abdominal distension (42), or bilious abdominal drain (67). Endoscopic retrograde cholangiopancreatography detected a leak at the cystic duct stump in 45 patients, stricture with middle common bile duct leak in 4, leak from the right hepatic duct in 3, and a ligated common bile duct in 32. Twelve also had bile duct stones. One had a broken T-tube with stones Endotherapy was possible in 53 patients. Three patients with stones, one with a broken T-tube with stones, and 4 with stricture of the common bile duct with a leak were managed with sphincterotomy and stenting. Eight patients with a cystic duct stump leak with stones were managed with sphincterotomy and stone extraction. Three outpatients and 12 inpatients with a cystic duct stump leak were managed with sphincterotomy and stent and sphincterotomy and nasobiliary drain, respectively. Five patients with a cystic duct stump leak were managed with stenting. Sixteen with coagulopathy were managed with only nasobiliary drain (9) or stent (7). Leak closure was achieved in 100% patients Four developed mild pancreatitis which improved with conservative treatment.CONCLUSIONS: Endoscopic intervention is a safe and effective method of treatment of postcholecystectomy biliary leaks. However, management should be individualized based on factors such as outpatients or inpatients, presence of stone, stricture, ligature, or coagulopathy. | Virendra Singh Gurpreet Singh Ganga R Verma Rajesh Gupta | 2010 | Hepatobiliary & Pancreatic Diseases International2010，9，4： | 9 |
| 3 | Contrast-free air cholangiography-assisted unilateral plastic stenting in malignant hilar biliary obstruction显示文摘BACKGROUND:Endoscopic palliation in malignant hilar biliary obstruction requires endoscopic retrograde cholangiopancreatography (ERCP),whereas contrast injection leads to cholangitis.Contrast-free metal stenting with or without magnetic resonance cholangiopancreatography (MRCP) has shown encouraging results,but MRCP and metal stents are costly.There have been no reports on the use of air cholangiography.METHODS:We prospectively evaluated the role of air cholangiography-assisted unilateral plastic stenting in 10 patients with type Ⅱ malignant hilar biliary obstruction.A retrospectively analysed group of 10 patients treated with contrast-free unilateral metal stenting served as historical controls.RESULTS:Ten patients with unresectable type Ⅱ malignant hilar biliary obstruction were studied.Air cholangiography detected type Ⅱ obstruction in all patients,similar to MRCP.The patients underwent unilateral stenting.Successful endoscopic drainage was achieved in all patients.The mean patency of the stent was 95.8±17.5 days in the study group and 143.9±115.1 days in the control group (P=0.20).The mean survival was 121.8±41.6 days in the study group and 154.9±122.5 days in the control group (P=0.42).KaplanMeier analysis showed an estimated median survival of 100:95% CI (65.9,134.1) days in the study group and 98:95% CI (84.1,111.9) days in the control group (P=0.62).Cholangitis occurred in none of the patients and there were no 30-day deaths nor major complications.Air cholangiographyassisted unilateral plastic stenting was cheaper than contrastfree unilateral metal stenting.CONCLUSION:Air cholangiography-assisted unilateral plastic stenting is as safe and effective as contrast-free unilateral metal stenting in type Ⅱ malignant hilar biliary obstruction for palliating patients,but it is cheaper. | Virendra Singh Gurpreet Singh Vikas Gupta Rajesh Gupta Rakesh Kapoor | 2010 | Hepatobiliary & Pancreatic Diseases International2010，9，1： | 7 |
| 4 | 沙棘——一种具有潜力的饲料植物显示文摘 | Virendra Singh Bhupinder Singh M.P.Narang 刘莹 何京亮 | 2008 | 国际沙棘研究与开发2008，6，3： | 5 |
| 5 | 沙棘饮料的化学成分和最优口感的研究显示文摘沙棘(Hippophae rhamnoids L.),属于胡颓子属,在印度喜马偕尔邦地区称作'Chharma and Surch',沙棘能够在这种非常恶劣的气候条件下自然生长。本文介绍了制作沙棘饮料的一系列程序和如何储存饮料120d而不使其变质的方法。沙棘果实采自印度喜马偕尔邦河谷。用碎浆机提取沙棘汁,制作沙棘饮料要准备好合适比例的沙棘汁和制作饮料所需的糖。随着果浆比例的升高,维生素C的含量明显增加(P≤0.05),随着贮藏时间的延长,维生素C的含量明显降低。而随着糖和果浆的增加以及储存期的延长,还原性糖呈上升趋势。当饮料中果浆和糖的比例分别为10%和13%、12.5%和13%、15%和15%时,饮料最为宜口,给于较高的评价。在喜马偕尔邦,人们一直认为沙棘具有商业价值,但是其价值在此前一直没有得到足够的重视。 | 杨唐英 温秀凤 Shipra Saklani H. R. Sharma Virendra Singh | 2008 | 国际沙棘研究与开发2008，6，1： | 4 |
| 6 | Studies on the decay characteristics of strontium aluminate phosphor on thermal treatment显示文摘 | Haranath D Virendra Shanker Harish Chander | 2002 | Material Chemistry and Phisics2002，，78： | 2 |
| 7 | Adenosine to facilitate the clipping of cerebral aneurysms:literature review显示文摘Cerebral aneurysms have a high mortality rate when ruptured.Endovascular techniques have improved substantially in treating this pathology.However,surgical clip ligation remains the preferred option for some aneurysms.Various techniques are used intraoperatively to assist the surgeon in dissecting the aneurysmal dome free of surrounding tissue and placing a clip around the neck safely and effectively so that no nearby perforating vessels are affected and no residual remains.These techniques include temporary clip ligation,endovascular balloon occlusion and cardiac standstill.Adenosine use is one viable option for induced cardiac arrest leading to a short period of controlled hypotension.Its predictable course of action,rapid onset and offset and rare incidence of adverse side effects make it an attractive agent in this regard.Below,we provide an introduction to adenosine use,describing its pharmacokinetic properties,indications,contraindications,complications and future directions. | Virendra R Desai Alejandro L Rosas Gavin W Britz | 2017 | Stroke & Vascular Neurology2017，2，4： | 2 |
| 8 | Noradrenaline vs. terlipressin in the treatment of hepatorenal syndrome: A randomized study显示文摘 | Virendra Singh Souvik Ghosh Baljinder Singh Pradeep Kumar Navneet Sharma Ashish Bhalla A.K. Sharma N.S. Choudhary Yogesh Chawla C.K. Nain | 2012 | Journal of Hepatology2012，，6： | 2 |
| 9 | Graphene based materials: Past, present and future显示文摘 | Virendra Singh Daeha Joung Lei Zhai Soumen Das Saiful I. Khondaker Sudipta Seal | 2011 | Progress in Materials Science2011，，8： | 2 |
| 10 | 几种沙棘果实与种子中脂肪酸成分分析显示文摘对来自拉浩地区 (半干旱地区 )与斯皮特 (干旱地区 )的 8年生沙棘种子与果肉粗提物中脂肪酸组成进行了研究。所选的中亚沙棘产自拉浩与斯皮特 ,同时研究的还有来自拉浩地区的柳叶沙棘与HI 1型沙棘 (外来品种 ) ,该外来品种种植在喜马偕尔邦农业大学高山农业研究与推广中心。该研究中心位于拉浩 斯皮特地区的拉浩谷地的库坎姆西瑞 (海拔 2 730m) ,处于印度温和干燥的喜马拉雅山地区。在所有种类的果肉油脂中 ,不饱和脂肪酸含量的比例 (5 2 8%~ 6 0 7% )高于饱和脂肪酸 (10 6 %~ 2 9 9% )。同样 ,除了柳叶沙棘以外 ,种子油脂中不饱和脂肪酸含量 (5 1 7%~ 86 5 % )要高于饱和脂肪酸含量(12 5 %~ 2 7 2 % )。在果肉油脂中 ,主要的饱和脂肪酸是棕榈油酸 (37 1%~ 4 6 4 % )、亚油酸 (6 4 %~15 0 % )、油酸 (4 0 %~ 6 9% )和软脂酸 (9 1%~ 2 8 1% )。柳叶沙棘果肉油脂中含有丰富的亚油酸(15 0 % )和α 亚麻酸 (1 3% )。棕榈油酸是最主要的不饱和脂肪酸 (37 1%~ 4 6 4 % ) ,在拉浩种群中含量最高 (4 6 4 % )。软脂酸是主要的饱和脂肪酸 ,除了斯皮特种群 (9 1% ) ,其他类型中的含量基本相同(2 6 4 %~ 2 8 1% )。在种子油脂中 ,斯皮特种群中含量最丰富的是亚油酸 (39 8% )和α | Virendra Singh Rajesh Kr.Gupta Shishir Tandon R.C.Sawhney | 2004 | 国际沙棘研究与开发2004，2，3： | 2 |
| 11 | 坏死性筋膜炎1例显示文摘报告1例具有典型症状的坏死性筋膜炎。患者女,70岁。皮损位于左臀部和左大腿,为显著性红斑、硬结、片状坏死,皮损有恶臭,组织中有产气现象,自觉疼痛剧烈。经组织病理检查确诊为坏死性筋膜炎。对患者施行清创术和对症支持治疗,包括消炎、镇痛和补液,获得令人满意的疗效。 | Virendra N Sehgal Naresh Sehgal Ruchi Sehgal Sujay Khandpur Sonal Sharma | 2005 | 临床皮肤科杂志2005，34，2： | 2 |
| 12 | Amino acid conjugates as κ opioid receptor agonists显示文摘 | Virendra K Deqi G | 2005 | Bioorg Med Chem Lett2005，15，5： | 1 |
| 13 | An intelligent approach to prediction and control ground vibration in mines显示文摘 | T. N. Singh Virendra Singh | 2005 | Geotechnical and Geological Engineering2005，，3： | 1 |
| 14 | Hazardous waste, impact on health and environment for development of better waste management strategies in future in India显示文摘 | Misra Virendra Pandey S D | 2005 | Environment International2005，31，3： | 1 |
| 15 | Interface in Carbon Nanotube Reinforced Aluminum Silicon Composites: Thermody- namic Analysis and Experimental Verification显示文摘 | Srinivasa R Anup K Virendra Singh | 2009 | Journal of Al- loys and Compounds2009，481，： | 1 |
| 16 | Effect of cysteine on methionine production by a regulatory mutant of Corynebacterium lilium显示文摘 | Dharmendra Kumar Kartik Subramanian Virendra S. Bisaria T.R. Sreekrishnan James Gomes | 2004 | Bioresource Technology2004，，3： | 1 |
| 17 | Transgenic expression of hevein, the rubber tree lectin, in Indian mustard confers protection against Altemaria brassicae 显示文摘 | Siddhartha K Jaganatha C V Pulugurtha B K and Virendra L C | 2002 | Plant Science2002，162，3： | 1 |
| 18 | Effect of ambient hydrogen suphide on the optical properties of evaporated cadmium sulphide films显示文摘 | Virendra S Beer P S Sharma T P | 2002 | Optical Materials2002，20，： | 1 |
| 19 | Effect of various additives on enzymatic hydrolysis of castor oil显示文摘 | Virendra K. Rathod Anirudha B. Pandit | 2009 | Biochemical Engineering Journal2009，，1： | 1 |
| 20 | Midodrine in patients with cirrhosis and refractory or recurrent ascites: A randomized pilot study显示文摘 | Virendra Singh Sahdeb P. Dhungana Baljinder Singh Rajesh Vijayverghia Chander K. Nain Navneet Sharma Ashish Bhalla Pramod K. Gupta | 2011 | Journal of Hepatology2011，，2： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员