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179篇 您的检索式:作者名="C. Kumar"
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1海枣核CO_2活化和磷酸活化制备活性炭及其结构、吸附性能(英文)显示文摘由于具有很大的吸附容量,多孔炭材料是优良的吸附剂。笔者试图比较海枣核分别经CO2活化和磷酸活化所制活性炭的结构和吸附性能。活化过程和工艺条件对炭的物理化学性质影响较大,根据文献报道的结果选取了优化的工艺参数。基于氮气吸附等温线、SEM、FT-IR等分析结果,评估了活性炭的结构特征,吸附性能则由亚甲蓝吸附值表示。CO2活化得到了微孔活性炭,产率为44%、BET比表面积是666 m2·g-1;磷酸活化得到了产率为14.8%的中孔活性炭,BET比表面积为725 m2·g-1。CO2活化活性炭的平均孔径是1.51 nm,磷酸活化活性炭的则为2.91 nm。活性炭的亚甲蓝吸附等温线分别用Langmuir等温线和Freundlich等温线进行了验证,在优化工艺条件下制备的CO2活化炭和磷酸活化炭的亚甲蓝w单分子吸附容量分别为110 mg·g-1和345 mg·g-1。然而,磷酸活化产生的亚甲蓝吸附值最高达455 mg·g-1。K. Suresh Kumar Reddy Ahmed Al Shoaibi C. Srinivasakannan 2012新型炭材料2012,27,5:14
2Myosin XI Is Required for Actin-Associated Movement of Plastid Stromules显示文摘Stromules 是从质体和偶尔相连的单个质体的表面延长的高度有活力的充满基质的小管,允许在互连的质体之间的复杂生物分子的运动。有细胞骨架汇编的禁止者的实验在 stromule 运动显示了一个基于肌动朊的系统的参与。然而,与系统联系的马达蛋白质没被识别。这里,我们肌浆球蛋白 XI 在烟草涉及 stromules 的形成和运动的现在的直接证据离开。2,3-butanedione 2-monoxime 的申请,肌浆球蛋白 ATPase 活动的一个禁止者,从烟草叶导致了 stromules 的损失表皮的细胞。在 Nicotiana benthamiana 的叶子的肌浆球蛋白 XI 的短暂 RNA 干扰也从表皮的房间导致了 stromules 的损失,没有为肌动朊或肌浆球蛋白 VIII 的抄本上的任何效果。在烟草叶的一个标注 GFP 的肌浆球蛋白 XI 尾巴领域的短暂表示表皮的房间证明对叶绿体,以及到线粒体和其它局部性的熔化蛋白质包细胞器。我们的调查结果作为涉及 stromules 的形成和运动的关键蛋白质识别肌浆球蛋白 XI。Senthil Kumar A. Natesan James A. Sullivan John C. Gray 2009Molecular Plant2009,2,6:6
3Adalimumab Induces and Maintains Mucosal Healing in Patients With Crohn’s Disease: Data From the EXTEND Trial显示文摘Paul Rutgeerts Gert Van Assche William J. Sandborn Douglas C. Wolf Karel Geboes Jean–Frédéric Colombel Walter Reinisch Ashish Kumar Andreas Lazar Anne Camez Kathleen G. Lomax Paul F. Pollack Geert D’Haens 2012Gastroenterology2012,,5:4
4A Versatile Phenotyping System and Analytics Platform Reveals Diverse Temporal Responses to Water Availability in Setaria显示文摘Phenotyping 在使用大规模 genomic 数据理解并且改善农业庄稼成为了限制率的步。这里,为控制环境植物生长的系铃羊 Phenotyping 站台和 automatedmultimodal phenotyping 被描述。系统为 1140 植物有能力,它每天通过车站过去记录荧光,在红外线附近、可见的图象。植物计算机视觉(PlantCV ) 作为公开源码被开发,硬件为量的图象分析的与平台无关的软件。在一个 4 星期的实验,野 Setaria viridisand 驯养了 Setaria italica 有根本上不同的时间的回答浇可获得性。当两根线在有限的水条件下面生产了生物资源的类似的层次时, Setaria viridis 在水下面维持了一样的水使用效率饱满条件,当 Setaria italica 变了到不太有效的生长时。总的来说,系铃羊 Phenotyping 平台和 PlantCV 软件在高度,生物资源,水使用效率,颜色,植物建筑学,和织物水上检测了 genotypeand 环境的重要效果地位特点。在实验的功课期间获得的所有 ∼79000 图象是公开可得到的。Noah Fahlgren Maximilian Feldman Malia A. Gehan Melinda S. Wilson Christine Shyu Douglas W. Bryant Steven T. Hill Colton J. McEntee ankalpi N. Warnasooriya Indrajit Kumar Tracy Ficor Stephanie Turnipseed Kerrigan B. Gilbert Thomas P. Brutnell James C. Carrington Todd C. Mockler Ivan Baxter 2015Molecular Plant2015,8,10:4
5Molecular alterations in colitis-associated colorectal neoplasia: Study from a low prevalence area using magnifying chromo colonoscopy显示文摘Bhadravathi Marigowda Shivakumar Balasubramanian Lakshman Kumar Ganesh Bhat Deepak Suvarna Lakshmi Rao C. Ganesh Pai Kapaettu Satyamoorthy 2011Journal of Crohn’s and Colitis2011,,6:3
6Model for end-stage liver disease and Child-Turcotte-Pugh score as predictors of pretransplantation disease severity, posttransplantation outcome, and resource utilization in United Network for Organ Sharing status 2A patients显示文摘Robert S. Brown K.Shiva Kumar Mark W. Russo Milan Kinkhabwala Dianne L. Rudow Patricia Harren Steven Lobritto Jean C. Emond 2002Liver Transplantation2002,,3:2
7Preparation and characterization of microcapsules containing linseed oil and its use in self-healing coatings显示文摘C. Suryanarayana K. Chowdoji Rao Dhirendra Kumar 2008Progress in Organic Coatings2008,,1:2
8DNA Barcode ITS Effectively Distinguishes the Medicinal Plant Boerhavia diffusa from Its Adulterants显示文摘Boerhavia diffusa (B. diffusa), also known as Punarnava, is an indigenous plant in India and an important component in traditional Indian medicine. The accurate identification and collection of this medicinal herb is vital to enhance the drug's efficacy and biosafety. In this study, a DNA barcoding technique has been applied to identify and distinguish B. diffusa from its closely-related species. The phylogenetic analysis was carried out for the four species of Boerhavia using barcode candidates including nuclear ribosomal DNA regions ITS, ITS1, ITS2 and the chloroplast plastid gene psbA-trnH. Sequence alignment revealed 26% polymorphic sites in ITS, 30% in ITS1, 16% in ITS2 and 6% in psbA-trnH, respectively. Additionally, a phylogenetic tree was constructed for 15 species using ITS sequences which clearly distinguished B. diffusa from the other species. The ITS1 demonstrates a higher transition/transversion ratio, percentage of variation and pairwise distance which differentiate B. diffusa from other species of Boerhavia. Our study revealed that ITS and ITS1 could be used as potential candidate regions for identifying B. diffusa and for authenticating its herbal products.Dhivya Selvaraj Dhivya Shanmughanandhan Rajeev Kumar Sarma Jijo C. Joseph Ramachandran V. Srinivasan Sathishkumar Ramalingam 2012Genomics, Proteomics & Bioinformatics2012,10,6:2
9Statistical Modeling Studies of Iron Recovery from Red Mud Using Thermal Plasma显示文摘Optimization studies of plasma smelting of red mud were carried out. Reduction of the dried red mud fines was done in an extended arc plasma reactor to recover the pig iron. Lime grit and low ash metallurgical (LAM) coke were used as the flux and reductant, respectively. 2level factorial design was used to study the influence of all parameters on the responses. Response surface modeling was done with the data obtained from statistically designed experiments. Metal recovery at optimum parameters was found to be 79.52%.Swagat S. RATH Archana PANY K. JAYASANKAR Ajit K. MITRA C. SATISH KUMAR Partha S. MUKHERJEE Barada K. MISHRA 2013Plasma Science and Technology2013,15,5:2
10Mahanine synergistically enhances cytotoxicity of 5-fluorouracil through ROS-mediated activation of PTEN and p53/p73 in colon carcinoma显示文摘Ranjita Das Kaushik Bhattacharya Sayantani Sarkar Suman Kumar Samanta Bikas C. Pal Chitra Mandal 2014Apoptosis2014,,:2
11Chronic hepatitis C virus (HCV) disease burden and cost in the United States显示文摘Homie Razavi Antoine C. ElKhoury Elamin Elbasha Chris Estes Ken Pasini Thierry Poynard Ritesh Kumar 2013Hepatology2013,,6:2
12Randomized, Placebo-Controlled, Clinical Trial of Donepezil in Vascular Dementia: Differential Effects by Hippocampal Size显示文摘Gustavo C. Román Stephen Salloway Sandra E. Black Donald R. Royall Charles DeCarli Michael W. Weiner Margaret Moline Dinesh Kumar Rachel Schindler Holly Posner 2010Stroke2010,,6:2
13ASGE Bariatric Endoscopy Task Force systematic review and meta-analysis assessing the ASGE PIVI thresholds for adopting endoscopic bariatric therapies显示文摘Barham K. Abu Dayyeh Nitin Kumar Steven A. Edmundowicz Sreenivasa Jonnalagadda Michael Larsen Shelby Sullivan Christopher C. Thompson Subhas Banerjee 2015Gastrointestinal Endoscopy2015,,3:2
14The AIMS65 score compared with the Glasgow-Blatchford score in predicting outcomes in upper GI bleeding显示文摘Brian H. Hyett Marwan S. Abougergi Joseph P. Charpentier Navin L. Kumar Suzana Brozovic Brian L. Claggett Anne C. Travis John R. Saltzman 2012Gastrointestinal Endoscopy2012,,:2
15Endoscopic bariatric therapies显示文摘Barham K. Abu Dayyeh Steven A. Edmundowicz Sreenivasa Jonnalagadda Nitin Kumar Michael Larsen Shelby Sullivan Christopher C. Thompson Subhas Banerjee 2015Gastrointestinal Endoscopy2015,,5:2
16PVD硬质合金刀具加工NimonicC-263合金表面粗糙度的建模和分析(英文)显示文摘研究了加工Nimonic C-263合金时,切削参数(切削速度、给进速度、切削深度等)对表面粗糙度的影响。采用正交方法设计实验。评估了切削参数对表面粗糙度的影响,获得最小粗糙度的最优切削条件。采用响应面方法建立了切削参数和表面粗糙度的二次多项式模型。实验结果表明:在所考察的切削参数中,给进速度对表面粗糙度的影响最为显著,其次是切削速度。模型预测结果与实际结果吻合较好,表明所建立的模型能够用来有效地预测加工Nimonic C-263合金时的表面粗糙度。最后,对预测结果用加成定律进行了验证。C. EZILARASAN V. S. SENTHIL KUMAR A. VELAYUDHAM K. PALANIKUMAR 2011Transactions of Nonferrous Metals Society of China2011,21,9:2
17XRD and EXAFS studies of HfO 2 crystallisation in SiO 2 – HfO 2 films显示文摘N.D. Afify G. Dalba U. Mahendra Kumar Koppolu C. Armellini Y. Jestin F. Rocca 2006Materials Science in Semiconductor Processing2006,,6:1
18Identification of Modifiable and Nonmodifiable Risk Factors for Neurologic Deterioration after Acute Ischemic Stroke显示文摘James E. Siegler Amelia K. Boehme Andre D. Kumar Michael A. Gillette Karen C. Albright T. Mark Beasley Sheryl Martin-Schild 2013Journal of Stroke and Cerebrovascular Diseases2013,,:1
19Serum ferritin predicts early mortality in patients with decompensated cirrhosis显示文摘Rakhi Maiwall Suman Kumar A.K. Chaudhary Jaswinder Maras Zeeshan Wani Chandan Kumar A. Rastogi C. Bihari Chitranshu Vashisht S.K. Sarin 2014Journal of Hepatology2014,,:1
20Ursodiol and Colorectal Cancer or Dysplasia Risk in Primary Sclerosing Cholangitis and Inflammatory Bowel Disease: A Meta-Analysis显示文摘Jonathan D. Hansen Sonal Kumar Wai-Kit Lo David M. Poulsen Umme-Aiman Halai Kathy C. Tater 2013Digestive Diseases and Sciences2013,,11:1
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