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Microbial diversity in coastal sediments during pre- and post-tsunami periods in the south east coast of India

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Frontiers in Biology 2014年第2期9卷 161-167页

作者： Prince S. GODSON N. CHANDRASEKAR S. Krishna KUMAR vimi P.v GeoMicrobiology laboratory Centre for GeoTechnology Manonmaniam Sundaranar University Tirunelveli 627 012 Tamil Nadu India Department of Microbiology V.T.M. College of Arts and Science Arumanai Kanyakumari-629 151 Tamil Nadu India

Sediment samples were collected from 12 beaches affected by the 2004 Asian Tsunami in the south-east coast of India between vanagiri and Nagoor. The objective of the present study is to delineate the microbial diversity in pre- and post-tsunami disaster coastal sediments. The collected marine sediments indicate that the overall microbial diversity is higher in the pre-tsunami sediments. The increase in pathogenic bacteria and fungal species after the tsunami is obscured due to inundation and backwashing of seawater along the coast. The reduction of other microbial diversity after the tsunami is attributed that the coastal and shelf sediments play an important role in the demineralization of organic matter, which supports the growth of microbes. The continuous exchange of ocean water and backwashing of coastal sediments by the tsunami wave probably reduced the pathogenic bacterial diversity in the sediments.

关键词： bacterial diversity tsunami coastal sediments fungal diversity principal component analysis person correlationmatrix

THE MATHEMATICAl DESCRIPTON OF COMMINUTION IN THE BAll MIll

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THE MATHEMATICAL DESCRIPTON OF COMMINUTION IN THE BALL MILL

Structural Analysis of TiC and TiC-C Core-Shell Nanostructures Produced by Pulsed-laser Ablation

The Second International Conference on Measurement and Control of Granular Materials

作者： Zhukov v.P. Grekov A.v. Mizonov v.E. Otwinowski H Ivanovo Power Eng Inst.Rabfakovskaya 34.153548 IvanovoUSSR TU Czestochowa.Al.A.Z.awadzkiego 21.42—200 Czestochlwa.Poland

The overall surface of the milling media bodies acts strongly onto the rate of *** function of the integral-differential kinetic equation may be repre- sented as the multiplication of the probability of the particles loading by the probability of the loaded particles *** probabilities depend on the milling media surface in differ- ent ways and the rate of comminution has the optimum with this *** three-param- eters mathematical model for the comminution process description and optimization is given and a good correspondence with experimental data is shown.

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Journal of Materials Science and Chemical Engineering 2023年第7期11卷 1-13页

作者： luis Enrique Iniesta Piña Miguel Ángel Camacho lópez Rafael vilchis Néstor víctor Hugo Castrejón Sánchez Delfino Reyes Contreras Mestría en Ciencia de Materiales Facultad de Química Campus Rosedal Universidad Autónoma del Estado de México Toluca México laboratorio de Fotomedicina Biofotónica y Espectroscopía Láser de Pulsos Ultracortos Facultad de Medicina Universidad Autónoma del Estado de México Toluca México Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM Toluca México TecNM/Tecnológico de Estudios Superiores de Jocotitlán Jocotitlán México laboratorio de Acústica y Nanomateriales Facultad de Ciencias Campus el Cerrillo Universidad Autónoma del Estado de México Toluca México

This paper reports on the ablation process of a pure Ti solid target immersed in a C-enriched acetone solution, leading to the production of titanium carbide (TiC) and Ti-C core-shell nanostructures. The used route of synthesis is generally called pulsed laser ablation in liquid (PlAl). The presence of carbon structures in the solution contributed to the carbon content in the produced Ti-based nanomaterials. The atomic composition of the produced nanostructures was analyzed using SEM-EDS, while TEM micrographs revealed the formation of spherical TiC and core-shell nanostructures ranging from 40 to 100 nm. The identification of atomic planes by HRTEM confirmed a 10 nm diameter C-shell with a graphite structure surrounding the Ti-core. Raman spectroscopy allowed for the identification of D and G peaks for graphite and a Raman signal at 380 and 600 cm−1, assigned to TiC. The results contribute to the state-of-the-art production of TiC and Ti-C core-shell nanostructures using the PlAl route.

关键词： laser Ablation TiC Nanoparticles Core-Shell Nanoparticles Pulsed laser

Thermoelectric Figure of Merit of a Material Consisting of Particles in Dependency on the Parameters of a Material

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Journal of Applied Mathematics and Physics 2014年第10期2卷 953-959页

作者： F. v. Kharlamov v. F. Kharlamov State University Education-Science-Production Complex Orel Russia

The properties of a ball-shaped semiconductor particles and metal particles with a semiconductor thin film on the surface thereof are established. So the dimensionless thermoelectric figure of merit of a material cons... 详细信息

关键词： Thermoelectric Effect Energy Transformation Semiconductor Particles

Multi-objective energy management in microgrids with hybrid energy sources and battery energy storage systems

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Protection and Control of Modern Power Systems 2020年第1期5卷 1-20页

作者： v.v.S.N.Murty Ashwani Kumar Electrical Engg Department NIT KurukshetraKurukshetraHaryanaIndia

Microgrid with hybrid renewable energy sources is a promising solution where the distribution network expansion is unfeasible or not *** of renewable energy sources provides energy security,substantial cost savings and reduction in greenhouse gas emissions,enabling nation to meet emission *** energy management is a challenging task for microgrid operator(MGO)for optimal energy utilization in microgrid with penetration of renewable energy sources,energy storage devices and demand *** this paper,optimal energy dispatch strategy is established for grid connected and standalone microgrids integrated with photovoltaic(Pv),wind turbine(WT),fuel cell(FC),micro turbine(MT),diesel generator(DG)and battery energy storage system(ESS).Techno-economic benefits are demonstrated for the hybrid power *** far,microgrid energy management problem has been addressed with the aim of minimizing operating cost ***,the issues of power losses and environment i.e.,emission-related objectives need to be addressed for effective energy management of microgrid *** this paper,microgrid energy management(MGEM)is formulated as mixedinteger linear programming and a new multi-objective solution is proposed for MGEM along with demand response *** response is included in the optimization problem to demonstrate it’s impact on optimal energy dispatch and techno-commercial *** interface has been developed for optimal scheduling of *** results are obtained for the optimal capacity of Pv,WT,DG,MT,FC,converter,BES,charging/discharging scheduling,state of charge of battery,power exchange with grid,annual net present cost,cost of energy,initial cost,operational cost,fuel cost and penalty of greenhouse gases *** results show that CO_(2) emissions in standalone hybrid microgrid system is reduced by 51.60%compared to traditional system with grid *** results obtained with the proposed method is comp

关键词： Microgrid energy management Renewable energy sources Storage system Demand response

Real time monitoring for analysis of dam stability:Potential of nonlinear elasticity and nonlinear dynamics approaches

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Frontiers of Structural and Civil Engineering 2013年第2期7卷 188-205页

作者： T.CHElIDZE T.MATCHARASHvIlI v.ABASHIDZE M.KAlABEGISHvIlI N.ZHUKOvA M.Nodia Institute of Geophysics Ivane Javakhishvili Tbilisi State UniversityTbilisi 0218Georgia European Centre on Geodynamical Hazards of High Dams 1 Alexidze str.Tbilisi 0171Georgia Georgian Technical University Tbilisi 0171Georgia

large dams are complex structures with nonlinear dynamic *** often are forced to assess dam safety based on the available incomplete data,which is extremely *** important problem can be solved with the modern theory of complex *** is possible to derive characteristics of the whole unknown dynamics of a structure using few data sets of certain carefully selected representative parameter(s).By means of high quality continuous records of some geotechnical characteristic(s)of a dam and modern methods of time series linear/nonlinear analysis the main dynamical features of the entire,unknown process(here—dam deformation)can be *** created the cost-effective Monitoring Telemetric System for Dam Diagnostics(DAMWATCH),which consists of sensors(tiltmeters),terminal and central controllers connected by the GSM/GPRS Modem to the diagnostic *** tilt data recorded for varying reservoir level are compared with static design model of dam deformations computed by a finite element method(FEM)for the dam-reservoir-foundation ***,recently developed linear/nonlinear data analysis and prediction schemes may help to quantify fine dynamical features of the dam *** software package DAMTOOl has been developed for this *** differences between measured and theoretically predicted response parameters of the dam may signal abnormal behavior of the *** data obtained already by testing of the DAMWATCH/DAMTOOl system during operation of the high Enguri arc dam and reservoir(Georgia)show interesting long-term and short-term patterns of tilts in the dam body,which can be used for dam *** proposed real-time telemetric monitoring(DAMWATCH)complex and linear/nonlinear dynamical analysis system(DAMTOOl)are unique.

关键词： real time monitoring telemetry dam tilts diagnostic tools hysteresis nonlinear dynamics

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直线与曲线

直线与曲线

Space Weather Parameters Computed on the Basis of the Magnetogram Inversion Technique

1984年

作者：（苏）N.B.伐西列夫（苏）v.l.古捷马赫王崇寿唐敬年译

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空间科学学报 2005年第5期25卷 436-446页

作者： v.M.Mishin M.Föster A.D.Bazarzhapov T.I.Saifudinova Y.A.Karavaev P.Stauning J.Watermann v.Golovkov S.Solovyev Institute of Solar-Terrestrial Physics Siberian BranchRussian Academy of SciencesIrkutsk 664033Russia Max-Plank Institute of Extra-Terrestrial Physics GarchingGermany Danish Meteorological Institute CopenhagenDenmark Institute of Terrestrial Magnetism Ionosphere and Radio Wave PropagationMoscowRussia Institute of Cosmophysical Research and Aeronomy Siberian BranchRussian Academy of SciencesYakutskRussia

In this paper is given short description of the magnetogram inversion technique,MIT2,and of methods of calculation of some parameters of space *** given also examples of new results,obtained using the MIT2 and solar w... 详细信息

关键词： Magnetosphere Substorm Superstorm Reconnection Electric current

Structure Transformations in the Polycrystalline (Ti,Nb)<sub>3</sub>Al Alloy under Shock-Wave loading

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Journal of Modern Physics 2011年第10期2卷 1141-1145页

作者： Nataliya v. Kazantseva Evgenii v. Shorokhov 不详

Structure transformations in the two-phase (Ti, Nb)3Al alloy, induced by shock-wave loading, were studied. The samples were subjected to an impact of a steel plate. The maximum pressure on the samples’ surfaces was 100 GPa, while the maximum temperature was 573 K. The β0→α2 phase transformation occurred during strong deformations. High temperature rectilinear dislocations (such types of dislocations usually could arise at 1073 K) with the c-component, which occasionally formed slip bands, were located at the α2-phase grains after the shock. The deformation α2-phase twins were not observed.

关键词： Ti3Al Phase Transformation Shock Waves