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Effect of additional element and heat treating temperature on micro-structure and mechanical behavior of Ag alloy thin film

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中国有色金属学会会刊：英文版 2006年第B01期16卷 217-219页

作者： IsHIGURO s A RIZONO t HAsEGAWA K Department of Material science and Engineering Saitama Institute of TechnologyFusaiji 1690OkabeSaitamaJapan 369-0293 Ishifuku Metal Industry Co Ltd Kana 3-20-7Chiyoda-kuTokyoJapan

For Ag alloy film used for the storage media, it is required to have heat-resistance, anti-constant temperature and anti-constant humidity characteristics, corrosion resistance, while high reflectivity over Al is maintained. An Ag alloy thin film (additive element Pd, Cu, P) was created on glass substrates, and various heat treatment was conducted. then, fine structure was observed on this thin film using AFM, and fine structure evaluation of the inside was carried out by the in-plane diffractometry and X-ray diffractometry, and in addition, residual stress analysis was carried out. these results were compared and were examined, and fine structure and physical property in a metallic thin film were evaluated, and usefulness of evaluation method was verified.

关键词：银合金薄膜添加元素热处理温度显微结构力学行为

Photoluminescent properties of LaF_3:Eu^(3+) and GdF_3:Eu^(3+)nanoparticles prepared by co-precipitation method

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Journal of Rare Earths 2009年第4期27卷 588-592页

作者： t.Grzyb s.Lis Department of Rare Earths Faculty of Chemistry Adam Mickiewicz University

GdF3：Eu^3＋ and GdF3：Eu^3＋ nanoparticles were prepared by a co-precipitation method in the presence of the chelating agent, citric acid. the structural properties of the products were characterized by X-ray diffraction （XRD） and transmission electron microscopy （tEM）. the average crystallite size was estimated from the full-width at half-maximum （FWHM） of the diffraction peaks by the scherrer equation. the sizes of the nanoparticles were 12 nm for LaF3：Eu3＋ and 17 nm for GdF3：Eu^3＋. the luminescent properties of the nanoparticles were investigated by excitation and emission spectra. Energy transfer from Gd3＋ to Eu3＋ was observed.

关键词： nanofluorides phosphors luminescence energy transfer rare earths

Data-driven drug repositioning using olfactory omics profiles:challenges and perspectives in neurodegeneration

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Neural Regeneration Research 2025年第7期20卷 1997-1998页

作者： Paz Cartas-Cejudo Adriana Cortés Mercedes Lachén-Montes Elena Anaya-Cubero Joaquín Fernández-Irigoyen Enrique santamaría Clinical Neuroproteomics Unit Proteomics PlatformNavarrabiomedHospitalario Universitario de Navarra(HUN)Universidad Pública de Navarra(UPNA)IdiSNANavarra Institute for Health ResearchPamplonaSpain

Data-driven drug repositioning using olfactory omics profiles-challenges and perspectives in neurodegeneration:Neurodegenerative diseases are characterized by progressive degeneration and loss of neuronal function in the central nervous *** diseases are often characterized as proteinopathies,which are disorders primarily driven by the aggregation or misfolding of specific amyloid proteins within cells,leading to their dysfunction and eventual *** the gain-of-function hypothesis related to the aggregation of these proteins,recently,an alternative hypothesis regarding the loss-of-function of the soluble monomeric proteins during the process of aggregation into amyloids is gaining *** last event is called proteinopenia and refers to conditions characterized by a deficiency or decrease in the levels of specific soluble proteins in the body(Ezzat et al.,2023).It has been demonstrated that levels of soluble proteins involved in neurodegenerative diseases are decreased.

关键词： diseases drug amyloid

Adsorption characteristics of humic acid-immobilized amine modified polyacrylamide/bentonite composite for cationic dyes in aqueous solutions

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Journal of Environmental sciences 2009年第7期21卷 884-891页

作者： t. s. Anirudhan P. s. suchithra Department of Chemistry University of Kerala Kariavattom Trivandrum-695 581 India.

Humic acid-immobilized amine modified polyacrylamide/bentonite composite （HA-Am-PAA-B） was prepared and used as an adsorbent for the adsorption of cationic dyes （Malachite Green （MG）, Methylene Blue （MB） and Crystal Violet （CV）） from aqueous solutions. the polyacrylamide/bentonite composite （PAA-B） was prepared by intercalative polymerization of acrylamide with Nabentonite in the presence of N,N＇-methylenebisacrylamide as a crosslinking agent and hexamethylenediammine as propagater. PAA-B was subsequently treated with ethylenediammine to increase its loading capacity for HA. the surface characterizations of the adsorbent were investigated. the adsorbent behaved like a cation exchanger and more than 99.0% removal of dyes was detected at pH range 6.0-8.0. the capacity of HA-Am-PAA-B was found to decrease in the following order： MG〉MB〉CV. the kinetic and isotherm data were interpreted by pseudo-second order rate equation and Freundlich isotherm model, respectively. Experiments were carried out using binary solute systems to assess the competitive adsorption phenomenon. the experimental isotherm data for each binary solute combination of MG, MB and CV were analyzed using sheindrof-Rebhun-sheintuch （sRs）（multicomponent Freundlich type） equation.

关键词： humic acid polymer/clay composite dye adsorption isotherm regeneration

Evaluation of red soil-bentonite mixtures for compacted clay liners

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第2期16卷 697-710页

作者： A.s.Devapriya t.thyagaraj Department of Civil Engineering Indian Institute of Technology MadrasChennai600036India

Compacted clay liners are an integral part of the waste landfills,which are provided to contain the leachate within the landfills and protect the surrounding ***,locally available natural soils are used for the construction of compacted clay liners if they satisfy the design ***,not all soils in their natural state satisfy all the design criteria for the liner ***,there is a definite need to modify the locally available natural soils by blending with bentonite to meet the required design criteria for the *** view of this,the present study evaluates the suitability of an Indian red soil enhanced with bentonite as a liner *** achieve this,a series of experiments were carried out using locally available red soil and ***,the suitability of the red soil was evaluated as a liner *** experimental results showed that the red soil met all the selection criteria stipulated by the Environmental Protection Agencies(EPAs)for the liners except the hydraulic conductivity ***,the red soil was mixed with bentonite contents of 10%,20%and 30%,and the red soil-bentonite mixtures were evaluated for their suitability for liners in their compacted ***,as the liners in the arid and semi-arid regions are subjected to moisture variations due to seasonal moisture fluctuations and other factors,the red soil-bentonite mixtures were subjected to wetdry cycles,and their suitability was evaluated after wet-dry *** experimental results revealed that all the red soil-bentonite mixtures met the stipulated EPA criteria for the liners in the as-compacted ***,the red soil-bentonite mixtures with 20%and 30%bentonite contents only satisfied the hydraulic conductivity requirement even after wet-dry *** experimental findings were supplemented with the microstructural insights captured through digital camera images,scanning electron microscopy(sEM),and mercury intrusion porosimetry(M

关键词： Compacted clay lines Hydraulic conductivity Wet-dry cycles Microstructure

Flow of Oldroyd-B fluid with nanoparticles and thermal radiation

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Applied Mathematics and Mechanics(English Edition) 2015年第1期36卷 69-80页

作者： t.HAYAt t.HUssAIN s.A.sHEHZAD A.ALsAEDI Department of Mathematics Quaid-i-Azam University Nonlinear Analysis and Applied Mathematics (NAAM) Research Group Faculty of ScienceKing Abdulaziz University Department of Mathematics Faculty of Computing Mohammad Ali Jinnah University Department of Mathematics COMSATS Institute of Information Technology

the two-dimensional boundary layer flow of an Oldroyd-B fluid in the presence of nanoparticles is investigated. Convective heat and mass conditions are considered in the presence of thermal radiation and heat generation. the Brownian motion and thermophoresis effects are retained. the nonlinear partial differential equations are reduced into the ordinary differential equation （ODE） systems. the resulting ODE systems are solved for the series solutions. the results are analyzed for various physical parameters of interest. Numerical values of the local Nusselt and sherwood numbers are also computed and analyzed.

关键词： nanoparticle Oldroyd-B fluid heat generation convective condition

Finite element models to represent seismic activity of the Indian plate

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Geoscience Frontiers 2017年第1期8卷 81-91页

作者： s.Jayalakshmi s.t.G.Raghukanth Department of Civil Engineering Indian Institute of TechnologyMadras 600036India

Quantification of seismic activity is one of the most challenging problems faced by earthquake engineers in probabilistic seismic hazard analysis. Currently, this problem has been attempted using empirical approaches which are based on the regional earthquake recurrence relations from the available earth- quake catalogue. However, at a specified site of engineering interest, these empirical models are asso- ciated with large number of uncertainties due to lack of sufficient data. Due to these uncertainties, engineers need to develop mechanistic models to quantify seismic activity. A wide range of techniques for modeling continental plates provides useful insights on the mechanics of plates and their seismic activity. Among the different continental plates, the Indian plate experiences diffused seismicity. In India, although Himalaya is regarded as a plate boundary and active region, the seismicity database indicates that there are other regions in the Indian shield reporting sporadic seismic activity. It is expected that mechanistic models of Indian plate, based on finite element method, simulate stress fields that quantify the seismic potential of active regions in India, this article explores the development of a finite element model for Indian plate by observing the simulated stress field for various boundary conditions, geological and theological conditions. the study observes that the magnitude and direction of stresses in the plate is sensitive to these conditions, the numerical analysis of the models shows that the simulated stress field represents the active seismic zones in India.

关键词： Indian platePlate driving forcesFinite element modeseismicityCratons

timoshenko inclusions in elastic bodies crossing an external boundary at zero angle

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Acta Mechanica solida sinica 2017年第3期30卷 327-333页

作者： A.M. Khludnev t.s. Popova Lavrentyev Institute of Hydrodynamics of R_As Novosibirsk State University Novosibirsk 630090 Russia North-Eastern Federal University Yakutsk 677000 Russia

the paper concerns an analysis of equilibrium problems for 2D elastic bodies with a thin timoshenko inclusion crossing an external boundary at zero angle. the inclusion is assumed to be delaminated, thus forming a crack between the inclusion and the body. We consider elastic inclusions as well as rigid inclusions. to prevent a mutual penetration between the crack faces, inequality type boundary conditions are imposed at the crack faces. theorems of existence and uniqueness are established. Passages to limits are investigated as a rigidity parameter of the elastic inclusion going to infinity.

关键词： thin timoshenko inclusion Crack Delamination Fictitious domain method Non-penetration

Numerical analysis of thermal plasma scrubber for CF4 decomposition

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Plasma science and technology 2019年第6期21卷 9-14页

作者： J KO t H KIM s CHOI Department of Nuclear and Energy Engineering Jeju National University Jeju 63243 Republic of Korea Institute for Nuclear science and technology Jeju National University Jeju 63243 Republic of Korea

CF4 gas emitted in the semiconductor and display manufacturing process is a very harmful greenhouse *** must be removed or converted safely due to its extreme *** a CF4 decomposition system using a thermal plasma scrubber was commercialized,its removal efficiency is *** this work,a numerical analysis of CF4 decomposition in the thermal plasma scrubber was carried out in order to propose an efficient decomposition *** decomposition and recombination temperatures of CF4 were analyzed using thermodynamic equilibrium *** chemical reaction of CF4 decomposition into carbon and fluorine gas was considered in this numerical *** injection position and angle of the CF4 were controlled in order to enhance the decomposition *** vertical injection of CF4 near the torch exit improved the mixing of the CF4 with the thermal plasma *** addition,it was confirmed that the high temperature region expanded due to a vortex generated by strong turbulence in the bottleneck-shaped *** a result,it is revealed that the CF4 injection location and the reactor configuration are the most important factors in improving the decomposition rate.

关键词： numerical simulation decomposition CF4 thermal plasma scrubber