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Spatial Variability of Mass Movements in the Satluj Valley,Himachal pradesh during 1990～2006

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Journal of Mountain Science 2008年第1期5卷 38-51页

作者： Vikram GUpTA M.p.SAH Wadia Institute of Himalayan Geology Dehra Dun-24 8 001 (Uttarakhand)

Satluj Valley is known to have a history of landslides and related mass movement activities since the geological times. Geological and geomorphological settings combined with anthropogenic activities constitute a propensity towards slope failure. During the last two decades,the area witnessed substantial increase in athropogenic pressure,mainly due to the exploitation of hydropower potential,changing landuse pattern and population growth. In addition,a shift of the climatic patterns in the form of larger area falling under the influence of rains was observed. These natural as well as anthropogenic changes in the area have resulted in increased spatial coverage of landslide in the area. This paper documents these changes during 1990～2006.

关键词： Landslides Mass movement Satluj Valley Himachal pradesh India

Effect of temperature and strain rate on compressive response of extruded magnesium nano-composite

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Journal of Magnesium and Alloys 2015年第3期3卷 224-230页

作者： B.Selvam p.Marimuthu r.Narayanasamy V.Senthilkumar K.S.Tun M.Gupta Department of Mechanical Engineering Mookambigai College of EngineeringPudukkottaiTamilnadu 622502India Syed Ammal Engineering College RamanathapuramTamilnadu 623502India Department of production Engineering National Institute of TechnologyTiruchirappalliTamilnadu 620015India Department of Mechanical Engineering National University of Singapore9 Engineering Drive 1Singapore 117576Singapore

The hot deformation behaviour of extruded magnesium-zinc oxide nano composite has been studied using hot compression *** test was conducted in the temperature range of 250-400℃ and in the strain rate range of 0.01 to 1.5 s^(−1).The processing map was obtained using the power dissipation efficiency with the functions of temperature and strain *** workability and instability domains were observed in the processing map for a nano *** optical microscopy(OM),scanning electron microscopy(SEM)and transmission electron microscopy(TEM)images were used to confirm the formation of dynamic recrystallization(DrX),dynamic recovery(DrY)and instability *** workability region of the composite was identified at a working temperature of 400℃ and the strain rate of 0.01 s^(−1) from the processing *** instability regions were observed at higher strain rates(>0.1 s^(−1))and temperatures(250-400℃).

关键词： Metal matrix composites powder metallurgy processing map Strain rate Instability Nano-composite

Approximate controllability of impulsive neutral stochastic functional differential system with state-dependent delay in Hilbert spaces

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控制理论与应用（英文版） 2013年第3期11卷 351-358页

作者： p.MUTHUKUMAr C.rAJIVGANTHI Department of Mathematics Gandhigram Rural Institute-Deemed University

Many practical systems in physical and technical sciences have impulsive dynamical behaviors during the evolution process which can be modeled by impulsive differential equations. In this paper, we prove the approximate controllability of control systems governed by a class of impulsive neutral stochastic functional differential system with state-dependent delay in Hilbert spaces. Sufficient conditions for approximate controllability of the control systems are established under the natural assumption that the corresponding linear system is approximately controllable. The results are obtained by using semigroup theory, stochastic analysis techniques, fixed point approach and abstract phase space axioms. An example is provided to illustrate the application of the obtained results.

关键词： Approximate controllability Hilbert space Impulsive neutral stochastic functional differential system Semigroup theory Sadovskii’s fixed point theorem

Vapor-Liquid Equilibrium of Ethyl Acetate+C_nH_(2n+1)OH(n=1,2,3) Binary Systems at 0.3 Mpa

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Chinese Journal of Chemical Engineering 2012年第4期20卷 723-730页

作者： SUSIAL p. rODrIGUEZ-HENrIQUEZ J.J. SOSA-rOSArIO A. rIOS-SANTANA r. School of Industrial and Civil Engineering University of Las Palmas de Gran CanariaCanary IslandsSpain

Vapor-liquid equilibrium data for the binary systems of ethyl acetate + methanol,ethyl acetate + ethanol and ethyl acetate + 1-propanol at 0.3 Mpa were *** experimental data were verified with the point-to-point test of van Ness(1973).All these systems present an azeotropic point at 0.3 Mpa that increases in ester composition for longer alcohol *** UNIFAC in different versions and ASOG prediction models were applied.

关键词： vapor-liquid equilibrium vapor-liquid equilibrium isobaric data ethyl ester alcohol

Anemia and inflammatory bowel diseases

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World Journal of Gastroenterology 2009年第37期15卷 4659-4665页

作者： Fernando Gomollón Javier p Gisbert Gastroenterology Unit Clinical Universitary Hospital "Lozano Blesa" CIBEREHD Avenida San Juan Bosco 15 Zaragoza 50009 Spain Gastroenterology Unit Universitary Hospital "La Princesa" CIBEREHD C/Diego de León 62 Madrid 28006 Spain

Too often anemia is considered a rare or unimportant manifestation in inflammatory bowel disease (IBD). However, over the last 10 years a number of studies have been conducted and the most relevant conclusions obtained are: (1) anemia is quite common in IBD; (2) although in many cases anemia parallels the clinical activity of the disease, many patients in remission have anemia, and iron, vitamin B12 and/or folic acid deficiency; (3) anemia, and also iron def iciency without anemia, have important consequences in the clinical status and quality of life of the patient; (4) oral iron can lead to gastrointestinal intolerance and failure of treatment; (5) intravenous iron is an effective and safe way to treat iron deficiency; (6) erythropoietin is needed in a significant number of cases to achieve normal hemoglobin levels. Thus, the clinician caring for IBD patients should have a comprehensive knowledge of anemia, and apply recently published guidelines in clinical practice.

关键词： Anemia Inflammatory bowel diseases Ferritin Iron

Multi-Area Unit Commitment Using Hybrid particle Swarm Optimization Technique with Import and Export Constraints

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Engineering（科研） 2009年第3期1卷 140-150页

作者： S. r. p. CHITrA SELVI r. p. KUMUDINI DEVI C. CHrISTOBEr ASIr rAJAN 不详

This paper presents a novel approach to solve the Multi-Area unit commitment problem using particle swarm optimization technique. The objective of the multi-area unit commitment problem is to determine the optimal or a near optimal commitment strategy for generating the units. And it is located in multiple areas that are interconnected via tie lines and joint operation of generation resources can result in significant operational cost savings. The dynamic programming method is applied to solve Multi-Area Unit Commitment problem and particle swarm optimization technique is embedded for computing the generation assigned to each area and the power allocated to all committed unit. particle Swarm Optimization technique is developed to derive its pareto-optimal solutions. The tie-line transfer limits are considered as a set of constraints during the optimization process to ensure the system security and reliability. Case study of four areas each containing 26 units connected via tie lines has been taken for analysis. Numerical results are shown comparing the cost solutions and computation time obtained by using the particle Swarm Optimization method is efficient than the conventional Dynamic programming and Evolutionary programming Method.

关键词： Multi-Area Unit Commitment Evolutionary programming Dynamic programming Method

New distributions over Wiener and Euclidean spaces

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Science China Mathematics 1996年第9期39卷 925-934页

作者： p. Imkeller 严加安 Laboratoire de Mathematique Universite de Franche-Comte 25030 Besancon France) (Institute of Applied Mathematics Chinese Academy of Sciences Beijing 100080 China)

Let (H, B, u) be an abstract Wiener space. New spaces of test functionals and distributions having kernels of the chaos decomposition in (Hn,n>0) are constructed. Their counterparts over rm are completely characterize... 详细信息

关键词： abstract Wiener space G-entire function G-holomorphic function S-transform H-transform.

Chemical pattern recognition applied to materials optimal design and industry optimization

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Chinese Science Bulletin 1997年第10期42卷 793-799页

作者： Chen, NY Li, CH Qin, p Shanghai Institute of Metallurgy Chinese Academy of Sciences Shanghai China

The multi-dimensional spaces, spanned by the dimensionless numbers describing the equilibrium states or the macroscopic chemical kinetics of complicated chemical reaction systems, have been used for the data processing of the process-es in materials preparation or industrial production. It has been found that there are four common topological types of the rela-tions between the optimization zone and the operation zone in the multi-dimensional spaces. Various computation methods us-ing pattern recognition, artificial neural network and genetic algorithm are used for model-building and optimization strategy searching. An integrated system named KDpAG has been built for materials optimal design or industrial optimization. Appli-cation to chemical, petrochemical and metallurgical industries and materials optimal design gives good results.

关键词： chemical pattern recognition materials design industrial optimization.

Structural and electrochemical investigations of nanostructured NiTiO3 in acidic environment

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Frontiers of Materials Science 2017年第2期11卷 162-170页

作者： V. CHELLASAMY p. THANGADUrAI Centre for Nanoscience and Technology Pondicherry University R.V. Nagar Kalapet Puducherry-605014 India

Electrochemically stable nanostructured nickel titanate （NiTiO3） was prepared by sol-gel method and the structural and electrochemical properties were studied in the presence of H2SO4 ＋ CH3OH electrolyte. XrD and raman studies confirmed the single phase of NiTiO3 with the rhombohedral structure. Thermal stability was studied by TGA. Microstructure analysis by SEM confirmed the uniformly distributed spherical shaped NiTiO3 particles, and TEM studies showed the spherical shaped particles with an average size of 90 nm. The UV-Vis analysis shows the absorption spectrum of NiTiO3, while the FTIr spectrum showed the vibrations related to Ni-O and Ti-O stretching. Electrochemical tests were carried out by cyclic voltammetry （CV） and polarization studies. The CV measurements were made at room temperature as well as at 60℃： at room temperature, the NiTiO3 did not show any activity towards methanol oxidation whereas there observed an activity at the potential of 0.69 V at the operating temperature of 60℃. The ilmenite structured NiTiO3 has oxygen vacancies, most probably on the surface, which could have also contributed to the methanol oxidation. Thus the nanostructured NiTiO3 is proposed to be an active support material for metal electrocatalysts.

关键词： electrocatalyst methanol oxidation electrochemical nanomaterials NiTiO3