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Intelligent Satin Bowerbird Optimizer Based Compression Technique for Remote Sensing Images

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Computers, materials & Continua 2022年第8期72卷 2683-2696页

作者： m.Saravanan J.Jayanthi U.Sakthi R.Rajkumar Gyanendra Prasad Joshi L.minh Dang Hyeonjoon moon Department of Networking and Communications School of ComputingSRM Institute of Science and TechnologyKattankulathur603203India Department of Computer Science and Engineering Sona College of TechnologySalem636005India Department of Computer Science and Engineering Saveetha School of EngineeringSIMATSChennai602105India Department of Electronics and Instrumentation Engineering Kongu Engineering CollegePerundurai638060India Department of Computer Science and Engineering Sejong UniversitySeoul05006Korea

Due to latest advancements in the field of remote sensing,it becomes easier to acquire high quality images by the use of various satellites along with the sensing *** the massive quantity of data poses a challenging issue to store and effectively transmit the remote sensing ***,image compression techniques can be utilized to process remote sensing *** this aspect,vector quantization(VQ)can be employed for image compression and the widely applied VQ approach is Linde–Buzo–Gray(LBG)which creates a local optimum codebook for image *** process of constructing the codebook can be treated as the optimization issue and the metaheuristic algorithms can be utilized for resolving *** this motivation,this article presents an intelligent satin bowerbird optimizer based compression technique(ISBO-CT)for remote sensing *** goal of the ISBO-CT technique is to proficiently compress the remote sensing images by the effective design of ***,the ISBO-CT technique makes use of satin bowerbird optimizer(SBO)with LBG approach is *** design of SBO algorithm for remote sensing image compression depicts the novelty of the *** showcase the enhanced efficiency of ISBO-CT approach,an extensive range of simulations were applied and the outcomes reported the optimum performance of ISBO-CT technique related to the recent state of art image compression approaches.

关键词： Remote sensing images image compression vector quantization sand bowerbird optimizer metaheuristics space savings

Teleparallel Killing Vectors of Spherically Symmetric Spacetimes

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Communications in Theoretical Physics 2009年第9期52卷 435-440页

作者： m.Sharif Bushra majeed Department of mathematics University of the Punjab

在这篇论文，杀死向量球状地，空间时间在引力的电视平行理论的上下文被评估了。进一步，我们调查 Friedmann 度量标准的杀死的向量。为静电干扰，球状地，空间预定外面杀死向量拐弯当时，是七的数字，这被发现因为 Friedmann 当模特儿... 详细信息

在这篇论文，杀死向量球状地，空间时间在引力的电视平行理论的上下文被评估了。进一步，我们调查 Friedmann 度量标准的杀死的向量。为静电干扰，球状地，空间预定外面杀死向量拐弯当时，是七的数字，这被发现因为 Friedmann 当模特儿，我们获得杀死向量的六电视平行。结果当时与一般相关性的那些相比。我们断定对严肃的这两描述不一般来说提供一致结果。然而，这些结果可以在一特别空间时间在某些条件下面与一致。

关键词：球对称 Killing 矢量弗里德曼广义相对论向量引力时空

Jet flows from bubbles during subcooled pool boiling on micro wires

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Science China(Technological Sciences) 2005年第4期48卷 385-402页

作者： D. m. Christopher Laboratory of Phase Change and Interfacial Transport Phenomena Department of Thermal Engineering Tsinghua University Beijing 100084 China

An experimental investigation was conducted on subcooled nucleate boiling on ultra-small wires having diameters of 25―100 μm. High-speed photography and laser PIV (Particle Image Velocimetry) technology were used to visually observe the bubble dynamics. For highly subcooled boiling at moderate heat fluxes, the bubbles generally remained attached to the micro heating wires and bubble-top jet flows were clearly observed. Smaller bubbles usually had stronger bubble-top jet flows, while larger bubbles seemed to produce multi-jet flows. The structures of the bubble-top jet flows, as well as multi-jet flows, were proposed from the experimental observation. A model was developed to describe jet flow phenomena from bubbles on micro wires. Numerical simulations for bubbles having diameter of 0.03 and 0.06 mm showed that both the bubble-top and multi-jet flows were induced by a strong marangoni effect due to high temperature gradients near the wire. The predicted velocity magnitudes and flow structures agreed very well with experimental measurements. The bubble size relative to the wire is an important factor affecting the jet flow structure. For a 0.03 mm bubble on a 0.1 mm wire, only a bubble-top jet flow forms, while a complex multi-jet flow pattern forms around the bubble with a weak bubble-top jet and two side jet flows for a 0.06 mm bubble.

关键词： subcooled boiling, bubble, multi-jet, jet flow, PIV, marangoni, CFD.

EFFECTS OF APPROXImATE DECONVOLUTION mODELS ON THE SOLUTION OF THE STOCHASTIC NAVIER-STOKES EQUATIONS

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Journal of Computational mathematics 2011年第2期29卷 131-140页

作者： m. Gunzburger A. Labovsky Department of Scientific Computing Florida State University TaUahassee FL 32306

The direct numerical simulation of Navier-Stokes equations in the turbulent regime is not computationally feasible either in the deterministic or （especially） in the stochastic case. Therefore, turbulent modeling must be employed. We consider the family of approximate deconvolution models （ADm） for the simulation of the turbulent stochastic Navier-Stokes equations （NSE）. For moderate values of the Reynolds number, we investi- gate the effect stochastic forcing （through the boundary conditions） has on the accuracy of solutions of the ADm equations compared to direct numerical simulations. Although the existence, uniqueness and verifiability of the ADm solutions has already been proven in the deterministic setting, the analyticity of a solution of the stochastic NSE is diffi- cult to prove. Hence, we approach the problem from the computational point of view. A Smolyak-type sparse grid stochastic collocation method is employed for the approximation of first two statistical moments of the solution - the expected value and variance. We show that for different test problems, the modeling error in the stochastic case is the same as predicted for the deterministic setting. Although the ADms are arguably only applicable for certain boundary conditions （zero or periodic）, we test the model on a problem with a boundary layer and recirculation region and demonstrate that the model correctly predicts the solution of the stochastic NSE with the noise in the boundary data.

关键词： Turbulence modeling Stochastic Navier-Stokes equations Deconvolution.

Conversion of methanol Using modified H-mOR Zeolite Catalysts

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催化学报 2011年第3期32卷 412-417页

作者： Sameh m. K. ABOUL-FOTOUH Noha A. K. ABOUL-GHEIT marwa m. I. HASSAN ChemistryDepartment FacultyofEducationAin—ShamsUniversityRoxyCairoEgypt ProcessDevelopmentDepartment EgyptianPetroleumResearchInstituteCairoEgypt

甲醇的变换在各种各样的 mordenite 沸石催化剂上被执行评估他们的催化表演。由有 NH4Cl 或 NH4F 的 halogenation 并且由有 HCl 或 HF 的 hydrohalogenation 的 H 粗腐殖质催化剂的一个准备以后的处理被执行并且它在 100300

关键词：催化燃烧高压化学理论

Current and emerging trends in prostate cancer immunotherapy

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Asian Journal of Andrology 2019年第1期21卷 6-11页

作者： Adam Schatz Badar m mian Division of Urology Albany Medical CollegeAlbany NY 12054USA.

There have been a number of recent developments in the treatment of castration-resistant prostate cancer which seek to exploit the hormonal ***,the castration-resistant prostate cancer remains a major challenge since this is the lethal and incurable phenotype which results in tens of thousands of deaths every *** has been emerging interest in utilizing anticancer immunotherapy in prostate cancer,especially since the development of *** other prostate cancer therapeutic vaccines including autologous and allogeneic vaccines,as well as viral vector-based vaccines,have demonstrated promising results in early trials.

关键词： prostate cancer immunotherapy hormonal axis

Experimental investigation of anodized/spray pyrolysed nanoporous structure on heat transfer augmentation

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Journal of Thermal Science 2009年第4期18卷 358-363页

作者： Kalaiselvam S. Gugan m.S. Kuraloviyan E. meganathan R. NiruthiyaPriyan A. Swaminathan m.R. Department of mechanical Engineering Anna University Chennai

This paper analyzes the effects of nanoporous surface on heat transfer temperaments of assorted thermal conductingmaterials. A phenomenal proposal of wielding the surface roughness to ameliorate the heat transfer ratehas been discovered. The maximum increase of heat transfer rate procured by nanoporous layers is 133.3% higherthan the polished bare metals of surface roughness 0.2μm. This plays an imperative role in designing compact refrigerationsystems, chemical and thermal power plants. Experimental results picture a formidable upswing of58.3% heat transfer in chemically etched metals of surface roughness 3 μm, 133.3% in nanoporous surface of porosity75-95 nm formed by electrochemical anodization, and porosity of 40-50 nm formed by spray pyrolysis increasesthe heat transfer by 130%. Effects of porosity, flow velocity and scaling on the energy transfer are alsoscrutinized. This paper also analyzes the multifarious modes of nanoporous fabrication, to contrive both prodigiousand provident system.

关键词：纳米多孔结构强化传热喷雾热解阳极氧化实验表面粗糙度制冷系统设计化学腐蚀

Room temperature synthesis of perylene diimides facilitated by high amic acid solubility

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Organic Chemistry Frontiers 2022年第4期9卷 1090-1108页

作者： markus C.Kwakernaak marijn Koel Peter J.L.van den Berg Erik m.Kelder Wolter F.Jager Department of Chemical Engineering Delft University of TechnologyVan der Maasweg 92629 HZ DelftThe Netherlands Department of Radiation Science and Technology/Reactor Institute Delft Delft University of Technology2629 JB DelftThe Netherlands

A novel protocol for the synthesis of perylene diimides(PDIs),by reacting perylene dianhydride(PDA)with aliphatic amines is *** conversions were obtained at temperatures between 20 and 60℃,using DBU as the base in Dm... 详细信息

关键词： synthesis solubility anhydride

Effect of Varying Carbon Content and Shot Peening upon Fatigue Performance of Prealloyed Sintered Steels

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Journal of materials Science & Technology 2009年第5期25卷 607-610页

作者： R.Bidulsky m.Actis-Grande m.Kabtov J.Bidulsk Politecnico Torino Alessandria CampusV.T.Michel5Alessandria 15000Italy Institute of materials Research SASWatsonova 47Koice04011Slovakia Technical University of Koice Faculty of MetallurgyLetn9Koice 04200Slovakia

The aim of the work was to find out how the modification of surface treatment and microstructures affect the fatigue characteristics of the considered sintered materials. Two different systems were prepared： as-sintered and shot peened prealloyed sintered （Astaloy CrL based） steels with addition of 0.5% and 0.7% C. Sintering was carried out in laboratory tube furnace in an atmosphere of pure gases 75%N2＋25%H2. The sintering temperature was 1180℃ and sintering time was 60 min. Heating and cooling rates were 10℃/min. Fatigue tests were carried out in symmetric plane bending at stress ratio R=-1 with frequency of about 24 Hz. The presented experimental results showed that prealloyed water-atomised steels, with surface modification, exhibit positive effects on the fatigue failure resistance, and for that reason are suitable for high-performance applications.

关键词： Sintered steels Shot peening Fatigue strength S-N curves