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18800 条 记 录,以下是4661-4670 订阅
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Noninvasive Fibrosis Scores as Prognostic Markers for Varices Needing Treatment in Advanced compensated Liver cirrhosis
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Open Journal of Gastroenterology 2017年 第8期7卷 230-242页
作者: Elham Ahmed Hassan Abeer Sharaf El-Din Abd El-Rehim Zain El-Abdeen Ahmed Sayed Ahmed Mohmmed Ashmawy Emad Farah Mohamed Kholef Abeer Sabry Wael Abd-Elgwad Elsewify Department of Tropical Medicine and Gastroenterology Faculty of Medicine Assiut University Assiut Egypt Department of Internal Medicine Faculty of Medicine Assiut University Assiut Egypt Department of Clinical pathology Faculty of Medicine Aswan University Aswan Egypt Department of Internal Medicine Faculty of Medicine Helwan University Cairo Egypt Department of Internal Medicine Faculty of Medicine Aswan University Aswan Egypt
Background/purpose: Noninvasive assessment of esophageal varices (EVs), their size and bleeding stigmata may reduce endoscopic burden, cost and drawbacks. We aimed to evaluate the diagnostic performance of noninvasive... 详细信息
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Effect of Pyrolysis Temperature and Feedstock Type on Agricultural Properties and Stability of Biochars
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Agricultural Sciences 2017年 第9期8卷 914-933页
作者: Rafaela Feola conz Thalita F. Abbruzzini cristiano A. de Andrade Debora M. B. P. Milori carlos E. P. cerri Department of Soil Sciences University of Sao Paulo Piracicaba Brazil Department of Environmental Systems Sciences Institute of Agricultural Sciences Swiss Federal Institute of Technology Zurich Switzerland Brazilian Agricultural Research Corporation Jaguariuna Brazil Brazilian Agricultural Research Corporation Sao Carlos Brazil
Pyrolysis temperature and feedstock type used to produce biochar influence the physicochemical properties of the obtained product, which in turn display a range of results when used as soil amendment. From soil carbon... 详细信息
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SELEcTIVE HYDROGENATION OF 3,4-DIMETHOXYBENZOPHENONE IN LIQUID PHASE OVER PD/c cATALYST IN A SLURRY REAcTOR
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cANADIAN JOURNAL OF cHEMIcAL ENGINEERING 2014年 第12期92卷 2157-2165页
作者: Tiwari, Manishkumar S. Yadav, Ganapati D. Ng, Flora T. T. Inst Chem Technol Dept Chem Engn Mumbai 400019 Maharashtra India Univ Waterloo Dept Chem Engn Waterloo ON N2L 3G1 Canada
Selective hydrogenation of benzophenone to benzhydrol is industrially relevant. In the current work, selective hydrogenation of 3,4-dimethoxybenzophenone (3,4-DMBP) to 3,4-dimethoxybenzhydrol (3,4-DMBH) was investigat... 详细信息
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颗粒尺寸、挤压和时效时间对Sic颗粒增强Al-cu-Mg基复合材料微观结构及硬度的影响
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粉末冶金材料科学与工程 2017年 第1期22卷 26-32页
作者: 沈茹娟 王德高 郭柏松 宋旼 中南大学深圳研究院 深圳518057 中南大学粉末冶金国家重点实验室 长沙410083
研究Si c颗粒尺寸、挤压和时效时间对粉末冶金法制备的Si c颗粒增强Al-cu-Mg基复合材料微观结构及硬度的影响。研究表明,挤压对复合材料的微观结构和硬度有重要影响,能够极大促进增强体在Al基体中的均匀分布和复合材料的致密化。挤压后... 详细信息
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Synthesis and characterization of novel activated carbon from Medlar seed for chromium removal: Experimental analysis and modeling with artificial neural network and support vector regression
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Resource-Efficient Technologies 2017年 第3期3卷 236-248页
作者: Mostafa Solgi Tahereh Najib Shahyar Ahmadnejad Bahram Nasernejad Chemical Engineering Department Babol Noshirvani University of Technology P.O. Box 484 *** Babol Iran Chemical Engineering Department Amirkabir University of Technology (Tehran Polytechnic) P.O. Box 15875-4413 Tehran Iran Electrical Engineering Department Babol Noshirvani University of Technology P.O. Box 15875-4413 Babol Iran
In this study, for the first time the activated carbon has been produced from medlar seed (Mespilus germanica) via chemical activation with KOH. The carbonization process was carried out at different temperatures of 4... 详细信息
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Hardness of Pillared-Graphene Nanostructures via Indentation Simulation
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MRS ADVANcES 2017年 第1期2卷 45-50页
作者: Sasaki, R. Shintani, K. Univ Electrocommun Dept Mech Engn & Intelligent Syst 1-5-1 Chofugaoka Chofu Tokyo 1828585 Japan
Pillared-graphene is one of nanocarbon hybrids. It consists of graphene sheets and carbon nanotubes (cNTs);the latter are bonded vertically to the former. In order to investigate the hardness of pillared-graphene, ind... 详细信息
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Recent advances in guest effects on spin-crossover behavior in Hofmann-type metal-organic frameworks
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coordination chemistry Reviews 2017年 335卷 28-43页
作者: Zhao-Ping Ni Jun-Liang Liu Md. Najbul Hoque Wei Liu Jin-Yan Li Yan-cong chen Ming-Liang Tong Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of Chemistry Sun Yat-Sen University Guangzhou 510275 PR China
The incorporation of spin-crossover (ScO) properties into metal-organic frameworks (MOFs) is an appealing subclass of multifunctional MOFs with potential applications in molecular sensing. This review focuses on the d... 详细信息
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Design and commissioning of a thermal stability test-rig for mixtures as working fluids for ORc applications
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Energy Procedia 2017年 129卷 176-183页
作者: L. Keulen c. Landolina A. Spinelli P. Iora c. Invernizzi L. Lietti A. Guardone Department of Aerospace Science & Technology Politecnico di Milano Via La Masa 35 20156 Milano Italy Department of Mechanical Engineering Politecnico di Milano Via La Masa 1 20156 Milano Italy Energy Department Politecnico di Milano Via Lambruschini 4 20156 Milano Italy Department of Mechanical and Industrial Engineering University of Brescia Via Branze 38 25121 Brescia Italy
A novel test-rig for studying the thermal stability of mixtures as working fluids for ORc applications was designed and commissioned at the Laboratory of compressible-fluid dynamics for Renewable Energy Applications (... 详细信息
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Influence of Pretreatment on Kinetics at carbon Electrodes and consequences for Flow Battery Performance
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MRS ADVANcES 2017年 第21-22期2卷 1131-1142页
作者: Buckley, D. N. Bourke, A. Lynch, R. P. Quill, N. Miller, M. A. Wainright, J. S. Savinell, R. F. Univ Limerick Bernal Inst Dept Phys & Energy Limerick Ireland Case Western Reserve Univ Dept Chem Engn Cleveland OH 44106 USA Waterford Inst Technol Sch Engn Waterford Ireland
Using cyclic voltammetry (cV) and electrochemical impedance spectroscopy (EIS), it was shown for four different types of carbon that electrode treatments at negative potentials enhance the kinetics of V-IV-V-V and inh... 详细信息
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Thermal Rectification characteristics of Graphene Nanoribbons of Asymmetric Geometries
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MRS ADVANcES 2017年 第1期2卷 15-20页
作者: Iwata, T. Shintani, K. Univ Electrocommun Dept Mech Engn & Intelligent Syst 1-5-1 Chofugaoka Chofu Tokyo 1828585 Japan
The rectification of heat in graphene nanoribbons (GNRs) of asymmetric geometries is investigated by means of nonequilibrium molecular dynamics (NEMD). Two kinds of geometries of GNRs are addressed;a trapezoidal or T-... 详细信息
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