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48篇 您的检索式:作者名="Rajneesh Kumar"
    题名 作者 年代 出处 被引量
1Anterior resection for rectal carcinoma-risk factors for anastomotic leaks and strictures显示文摘AIM:To determine the incidence and factors responsible for anastomotic leaks and stricture following anterior resection(AR)and its subsequent management.METHODS:Retrospective analysis of data from 108 patients with rectal carcinoma who underwent AR or low anterior resection(LAR)to identify the various preoperative,operative,and post operative factors that might have influence on anastomotic leaks and strictures.RESULTS:There were 68 males and 40 females with an average of 47 years(range 21-75 years).The median distance of the tumor from the anal verge was 8 cm(range 3-15 cm).Sixty(55.6%)patients underwent handsewn anastomosis and 48(44.4%)were stapled.The median operating time was 3.5 h(range2.0-7.5 h).Sixteen(14.6%)patients had an anastomotic leak.Among these,11 patients required reexploration and five were managed expectantly.The anastomotic leak rate was similar in patients with and without diverting stoma(8/60,13.4%with stoma and 8/48;16.7%without stoma).In 15(13.9%)patients,resection margins were positive for malignancy.Ninteen(17.6%)patients developed anastomotic strictures at a median duration of 8 mo(range 3-20 mo).Among these,15 patients were successfully managed with per-anal dilatation.On multivariate analysis,advance age(>60 years)was the only risk factor for anastomotic leak(P=0.004).On the other hand,anastomotic leak(P=0.00),mucin positive tumor(P =0.021),and lower rectal growth(P=0.011)were found as risk factors for the development of an anastomotic stricture.CONCLUSION:Advance age is a risk factor for an anastomotic leak.An anastomotic leak,a mucin-secreting tumor,and lower rectal growth predispose patients to develop anastomotic strictures.Ashok Kumar Ram Daga Paari Vijayaragavan Anand Prakash Rajneesh Kumar Singh Anu Behari Vinay K Kapoor Rajan Saxena 2011World Journal of Gastroenterology2011,17,11:28
2AA5083铝合金的搅拌摩擦焊接工艺参数对搅拌头受力和热输入的影响(英文)显示文摘采用系统实验设计方法研究AA5083铝合金搅拌摩擦焊接工艺参数对搅拌头受力和热量输入的影响,得到了用来设计搅拌摩擦焊搅拌头和焊机的经验模型。当采用计算机来控制搅拌摩擦焊接时,这些模型可用来确定AA5083这类铝合金的摩擦焊接工艺参数、编制焊接程序及工艺参数控制。结果表明:影响轴向力和热量输入的重要参数是搅拌头转速、焊接速度和搅拌头轴肩直径,而影响纵向应力的重要参数是焊接速度和探头直径。Rajneesh KUMAR Kanwer SINGH Sunil PANDEY 2012Transactions of Nonferrous Metals Society of China2012,22,2:10
3Uniqueness,reciprocity theorem,and plane waves in thermoelastic diffusion with a fractional order derivative显示文摘In this work, a theory of thermoelasticity with diffusion is taken into consideration by using the methodology of fractional calculus. The governing equations for particle motion in a homogeneous anisotropic fractional order generalized thermoelastic diffusive medium are presented. Uniqueness and reciprocity theorems are proved. The plane wave propagation in the homogeneous transversely isotropic thermoelastic diffusive medium with fractional order derivative is studied. For the two-dimensional problem, there exist a quasi-longitudinal wave, a quasi-transverse wave, a quasi-mass diffusion wave, and a quasi-thermal wave. From the obtained results, the different characteristics of waves, like phase velocity, attenuation coefficient, specific loss, and penetration depth, are computed numerically and presented graphically. Some special cases are also discussed.Rajneesh Kumar Vandana Gupta 2013Chinese Physics B2013,22,7:4
4Experimental Study of Parameters of a Plasma Antenna显示文摘一个表面波浪激动的血浆列能充当一条血浆天线。实验被执行学习电流和传导性如此的一条血浆天线的分布,领域,功率模式,择向性和效率。另外,一条相等的金属性的铜天线被建立,它的天线参数与血浆天线的相比。我们的调查结果显示在血浆天线的泛音的力量内容是与铜天线相比同样突出的更多(它仅仅产生基本频率) 。然而,为两条天线的力量模式是相当类似的。在血浆天线的领域里关于泛音的产生提供更质的理解,双性人光谱的分析被执行在当前的变化学习非线性的相互作用。血浆天线的一些特定的特征在我们的学习被调查,它可以关于常规金属性的天线提高血浆天线的申请前景。Rajneesh KUMAR Dhiraj BORA 2010Plasma Science and Technology2010,12,5:3
5Change in model for end-stage liver disease score at two weeks,as an indicator of mortality or liver transplantation at 60 days in acute-on-chronic liver failure显示文摘Background:Acute-on-chronic liver failure(ACLF)is characterised by a sudden deterioration of underlying chronic liver disease,resulting in increased rates of mortality and liver transplantation.Early prognostication can benefit optimal allocation of resources.Methods:ACLF was defined as per the disease criteria of the Asian Pacific Association for the Study of the Liver.Inpatient discharge summaries from between January 2001 and April 2013 were reviewed.The primary outcome was mortality or liver transplantation within 60 days from onset of ACLF.Absolute‘model for end-stage liver disease’(MELD)score and change in MELD at Weeks 1,2 and 4 were reviewed in order to identify the earliest point for prediction of mortality or liver transplantation.Results:Clinical data were collected on 53 subjects who fulfilled the inclusion and exclusion criteria.At 60 days from presentation,20 patients(37.7%)died and 4(7.5%)underwent liver transplantation.Increased MELD of-2 after 2 weeks was 75.0%sensitive and 75.9%specific for predicting mortality or liver transplantation.If the MELD score did not increase at 2 weeks,predictive chance of survival was 93.8%over the next 60 days.MELD change at 1 week showed poor sensitivity and specificity.Change at 4 weeks was too late for intervention.Conclusion:Change in MELD score at 2 weeks provides an early opportunity for prognostication in ACLF.A MELD score that does not deteriorate by Week 2 would predict 93.8%chance of survival for the next 60 days.This finding warrants further validation in larger cohort studies.Rajneesh Kumar Thinesh Lee Krishnamoorthy Hiang Keat Tan Hock Foong Lui Wan Cheng Chow 2015Gastroenterology Report2015,3,2:2
6A Reconfigurable Plasma An-tenna显示文摘Rajneesh Kumar Dhiraj Bora 2010Journal of Applied Physics2010,107,:1
7Salicylic acid alleviates aluminum toxicity in rice seedlings better than magnesium and calcium by reducing aluminum uptake, suppressing oxidative damage and increasing antioxidative defense显示文摘Poonam Pandey Rajneesh Kumar Srivastava R. S. Dubey 2013Ecotoxicology2013,,4:1
8Application of digital image magnification for surface roughness evaluation using machine vision显示文摘Rajneesh Kumar 2005International Journal of Machine Tools and Manufacture2005,45,2:1
9Sphenoid wing meningioma presenting as cognitive impairment显示文摘额叶脑膜瘤可仅表现出类似痴呆的心理症状。我们报告一例42岁的男性。患者最初被认为患有痴呆,最终确诊为蝶骨嵴脑膜瘤所致的痴呆。蝶骨嵴脑膜瘤的症状隐匿,往往会延误诊断,会被误认为是痴呆的表现。由于认知障碍比较复杂而且容易被忽视,所以准确评估患有脑部巨大肿瘤患者的神经心理功能是非常重要的。Rahul SAHA Kiran JAKHAR Rajneesh KUMAR 2016上海精神医学2016,28,3:1
10Study of Energetic Characteristics in Power Split Drives for on Highway Trucks and Wheel Loaders显示文摘Rajneesh Kumar Monika Ivantysynova Kyh Wiliams 2007SAE2007,,:1
11A Reconfigurable Plasma Antenna显示文摘Rajneesh Kumar Dhiraj Bora 0,,0533:1
12DEFORMATION DUE TO TIME HARMONIC SOURCES IN MICROPOLAR THERMOELASTIC MEDIUM POSSESSING CUBIC SYMMETRY WITH TWO RELAXATION TIMES显示文摘The response of a micropolar thermoelastic medium possessing cubic symmetry with two relaxation times due to time harmonic sources is investigated. Fourier transform is employed and the transform is inverted by using a numerical inversion technique. The components of displacement, stress, microrotation and temperature distribution in the physical domain are obtained numerically. The results of normal displacement, normal force stress, tangential couple stress and temperature distribution are compared for micropolar cubic crystal and micropolar isotropic solid. The numerical results are illustrated graphically for a particular material. Some special cases are also deduced.Rajneesh Kumar Praveen Ailawalia 2006Applied Mathematics and Mechanics(English Edition)2006,27,6:1
13Reflection/transmission of plane waves at an imperfectly bonded interface of two orthotropic generalized thermoelastic half-spaces显示文摘Rajneesh Kumar Manjeet Singh 2008Materials Science and Engineering A2008,47,:1
14Experimental investigation of gas heating and dissociation in a microwave plasma torch at atmospheric pressure显示文摘Liu Su Rajneesh Kumar Babajide Ogungbesan Mohamed Sassi 2014Energy Conversion and Management2014,,:1
15Modified expanded eorrole-ferroeene conjugates:Syntheses, structure and properties显示文摘Kumar Rajeev Misra Rajneesh Prabhuraja Viswanathan 2005Chem Eur J2005,11,19:1
16Response of orthotropic micropolar elastic medium due to time harmonic source显示文摘Rajneesh Kumar Suman Choudhary 2004Sadhana2004,,1:1
17Response of Orthotropic Micropolar Elastic Medium Due to Various Sources显示文摘Rajneesh Kumar Suman Choudhary 2003Meccanica2003,,3:1
18Mechanical sources in orthotropic micropolar continua显示文摘Rajneesh Kumar Suman Choudhary 2002Proceedings of the Indian Academy of Sciences - Earth and Planetary Sciences2002,,2:1
19Deformation due to mechanical and thermal sources in generalised orthorhombic thermoelastic material显示文摘Rajneesh Kumar Leena Rani 2004Sadhana2004,,5:1
20Surface wave propagation in a transversely isotropic elastic layer overlying a liquid saturated porous solid half-space and lying under the uniform layer of liquid显示文摘M. D. Sharma Rajneesh Kumar M. L. Gogna 1990Pure and Applied Geophysics PAGEOPH1990,,3:1
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