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Nanoindentation properties of as-soldered low-Ag SAC-Bi-Ni/Cu 焊接低银SAC-Bi-Ni/Cu的纳米压痕性能
2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357535
Yang Liu, F. Sun, Guojun Wang, Pengfei Zou
{"title":"Nanoindentation properties of as-soldered low-Ag SAC-Bi-Ni/Cu","authors":"Yang Liu, F. Sun, Guojun Wang, Pengfei Zou","doi":"10.1109/IFOST.2012.6357535","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357535","url":null,"abstract":"In this study, the nanoindentation properties of the as-soldered low-Ag SAC-Bi-Ni solder alloys on Cu substrate were characterized. The overall evaluations on the elastic modulus, hardness, and creep properties of the new solder alloys were proposed based on the comparisons with low-Ag solder SAC0307, SAC0705, and high-Ag solder SAC305. Experimental results indicated that the hardness of the SAC solders without Bi and Ni addition varied from 127MPa to 196MPa. Meanwhile, the elastic modulus was between 29-36GPa, and the creep stress sensitivity was from 15 to 19. However, the hardness of low-Ag SAC-Bi-Ni solders was between 305-403MPa. Additionally, with Bi and Ni elements addition, the elastic modulus of SAC0705 increased to 35-63GPa, and the value of creep stress sensitivity reached to 25-45. It is clear that the addition of Bi and Ni in low-Ag SAC solder greatly improved its nanoindentation properties, which were critical for the solder joint reliability.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122227268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Determining the driver's reaction time in the stationary and real-life environments (Comparative Study) 确定驾驶员在静止和现实环境中的反应时间(比较研究)
2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357735
J. Khashbat, T. Tsevegjav, J. Myagmarjav, I. Bazarragchaa, A. Erdenetuya, N. Munkhzul
{"title":"Determining the driver's reaction time in the stationary and real-life environments (Comparative Study)","authors":"J. Khashbat, T. Tsevegjav, J. Myagmarjav, I. Bazarragchaa, A. Erdenetuya, N. Munkhzul","doi":"10.1109/IFOST.2012.6357735","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357735","url":null,"abstract":"This research is focused on the results that determined the driver's reaction time. For conducting the experiment, two methodologies were worked out to determine the driver's reaction time. As a result of determining the driver's reaction time in stationary and real-life environments following these methodologies, the statistic processing was made. Driver's age and driving experience are the leading factors to influence on the driver's reaction time. To determine the driver's reaction time in a real-life environment, we selected the condition in which the traffic speed and intensity are constant. As a result of the experiment and the research, the statistic processing was made, consequently, the two factor linear equation of regression was developed. Also, the comparitive research was made on the cases of the reaction time which were defined by two different methodologies, and the results have been determined.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122234741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Dissolution of zinc nanoparticles in pulmonary fluid 锌纳米颗粒在肺液中的溶解
2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357532
E. Yunda, A. Godymchuk
{"title":"Dissolution of zinc nanoparticles in pulmonary fluid","authors":"E. Yunda, A. Godymchuk","doi":"10.1109/IFOST.2012.6357532","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357532","url":null,"abstract":"Inhaled from the ambient air nanoparticles may reach innermost areas of respiratory tract, alveolar sacs, particularly. In this work the dissolution of electroexplosive zinc nanoparticles (62 nm) in the synthetic alveolar has been studied. The evidence of the total solubility (99%) of metal nanopowders in the synthetic alveolar fluid had been demonstrated with the help of the stripping voltammetry. Alongside, the mechanism of zinc nanoparticles dissolution related to the electroexplosive zinc nanoparticles completely dissolving in the synthetic alveolar fluid has been proposed.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127921255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Reconstruction stability in some problems of X-ray and seismic tomography x射线和地震层析成像若干问题的重建稳定性
2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357741
A. Begmatov, A. Seidullaev, A. O. Pirimbetov
{"title":"Reconstruction stability in some problems of X-ray and seismic tomography","authors":"A. Begmatov, A. Seidullaev, A. O. Pirimbetov","doi":"10.1109/IFOST.2012.6357741","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357741","url":null,"abstract":"We study problems of recovering a function given by weighted integrals over plane curves of a special shape. The curves and weight functions are piecewise smooth. Such problems of integral geometry are connected with the problems of reconstruction of internal structure of an object from the boundary data. We reduce these problems to the investigation of Fredholm equations of first kind. Stability estimates for a solution to the considered problems in spaces of finite smoothness were obtained thereby demonstrating weak ill-posedness of the problem. We present also an efficient algorithm for stable solving of initial problem.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132595646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Determination of the influence zone on the atmospheric pollution of chemical elements from a point source (Combined heat and power) 点源(热电联产)化学元素对大气污染影响范围的测定
2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357517
N. K. Rizhakova, N. S. Rogova, E. Pokrovskaya
{"title":"Determination of the influence zone on the atmospheric pollution of chemical elements from a point source (Combined heat and power)","authors":"N. K. Rizhakova, N. S. Rogova, E. Pokrovskaya","doi":"10.1109/IFOST.2012.6357517","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357517","url":null,"abstract":"Semi-empirical transfer model of chemical contaminants in the atmosphere from a point source is considered in the report. The model is based on solving the diffusivity equation that takes account of the transport of impurities in the horizontal direction due to wind, turbulent diffusion and gravitational deposition in a vertical direction. In the report it is suggested to determine the modeling parameters by measurements of atmospheric pollution at several points. These points are selected in a particular direction. Epiphytic mosses are used as depositing of pollution objects. Chemical elements concentrations are determined with the help of neutron activation analysis. The considered model is used to estimate the influence zone of a point source on the basis of thermal power plant (TPP-5 Novosibirsk).","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128920173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Application of electrical induced selective drift of solvated ions in solutions phenomena in chemical technologies 电诱导溶剂化离子选择性漂移现象在化学技术中的应用
2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357757
I. Shamanin, M. Kazaryan, I. Lomov, S. Dolgopolov
{"title":"Application of electrical induced selective drift of solvated ions in solutions phenomena in chemical technologies","authors":"I. Shamanin, M. Kazaryan, I. Lomov, S. Dolgopolov","doi":"10.1109/IFOST.2012.6357757","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357757","url":null,"abstract":"The possibility of the use the phenomena of the electrical-induced selective drift of cationic aquacomplexes in the water solution of the salts for creating of the new, non-electrode, power-saving technology of the solution enrichment by desired element is shown. The development of the naturally-scientific basis of this technology has showed that inertial properties of formed in the solution over-molecular structural units - clusters depends from that's dimensions. Dimensions of these clusters are in limits from scores of angstrom to fractions of micron, at the same time liquid mediums are the base of functioning both biological and technological systems. This work shows new approach for theoretical describing of salts solution in dielectric liquids and contains some data on the realized experiments.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134620548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Back propagation neural network based on artificial bee colony algorithm 基于人工蜂群算法的反向传播神经网络
2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357623
Feihu Jin, Guang Shu
{"title":"Back propagation neural network based on artificial bee colony algorithm","authors":"Feihu Jin, Guang Shu","doi":"10.1109/IFOST.2012.6357623","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357623","url":null,"abstract":"The artificial bee colony algorithm is a novel simulated evolutionary algorithm. The artificial bee colony algorithm has positive feedback, distributed computation and a constructive greedy heuristic convergence. Back propagation is a kind of feed forward neural network widely used in many areas, but it has some shortcomings, such as low precision solutions, slow search speed and easy convergence to the local minimum. The combination of artificial bee colony algorithm and back propagation neural network is adopted so that a nonlinear model can be identified and an inverted pendulum can be controlled. Simulation results show that the extensive mapping ability of neural network and the rapid global convergence of artificial bee colony algorithm can be obtained by combining artificial bee colony algorithm and neural network.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"353 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120838782","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Ceramic pigments based on the dicalcium silicate 基于硅酸二钙的陶瓷颜料
2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357486
M. Sedelnikova, N. V. Liseenko, V. Pogrebenkov
{"title":"Ceramic pigments based on the dicalcium silicate","authors":"M. Sedelnikova, N. V. Liseenko, V. Pogrebenkov","doi":"10.1109/IFOST.2012.6357486","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357486","url":null,"abstract":"The possibility of ceramic pigments synthesis using industrial waste is studied. These raw materials will lower production costs of ceramic pigments. The synthesized pigments can be recommended for obtaining on-glaze ceramic paints and volume coloring of ceramic pastes in the manufacture of construction materials.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116196268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Application of hybrid real-time power system simulator for setting up and close loop testing of protection and control equipment 混合实时电力系统模拟器在保护控制设备设置及闭环测试中的应用
2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357823
A. Prokhorov, Y. Borovikov, M. Andreev
{"title":"Application of hybrid real-time power system simulator for setting up and close loop testing of protection and control equipment","authors":"A. Prokhorov, Y. Borovikov, M. Andreev","doi":"10.1109/IFOST.2012.6357823","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357823","url":null,"abstract":"This paper presents new tool for setting up and comprehensive close loop testing of protection, automation and control equipment (PACE). The role of this tool for Smart Grid (SG) design process is also described. Comprehensive close loop tests of PACE in power system (PS) various regimes with consideration of possible interactions between tested equipment and other automation are possible only with the use of real-time software and hardware simulators. But digital simulators are based on numerical methods of integration and therefore impose constraints on differential order and stiffness of a mathematical model of PS. Besides, each step of differential equation integration causes the error which is accumulated and cannot be eliminated. Because of this a simulation time is very restricted and simulation itself can never be continuous. New capabilities are provided with the use of a hybrid simulation concept which has no mentioned limitations. The concept of hybrid simulation was created at Tomsk Polytechnic University and became a base for construction of Hybrid Real-Time Power System Simulator (HRTSim). HRTSim is a multipurpose tool suitable for various power engineering tasks, among which are PACE setting up and testing. Practical results of HRTSim application in the Tyumen PS are presented in this paper. HRTSim was used there for testing and setting up of momentary and sustained fast turbine valving control (FTVC) systems of the generating unit of the Surgut co-generation power plant.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128695721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Biocompatible nanostructured coatings based on calcium phosphates prepared by means of rf-magnetron sputtering deposition 射频磁控溅射沉积制备生物相容性磷酸钙纳米涂层
2012 7th International Forum on Strategic Technology (IFOST) Pub Date : 2012-11-26 DOI: 10.1109/IFOST.2012.6357526
M. Surmeneva, R. Surmenev, V. Pichugin, A. Ivanova, I. Grubova, M. Chaikina, I. Khlusov, A. Kovtun, M. Epple
{"title":"Biocompatible nanostructured coatings based on calcium phosphates prepared by means of rf-magnetron sputtering deposition","authors":"M. Surmeneva, R. Surmenev, V. Pichugin, A. Ivanova, I. Grubova, M. Chaikina, I. Khlusov, A. Kovtun, M. Epple","doi":"10.1109/IFOST.2012.6357526","DOIUrl":"https://doi.org/10.1109/IFOST.2012.6357526","url":null,"abstract":"The aim of this study was to prevent the problems associated with implants failure. Biocompatible nanostructured thin films of either Si- or Ag-containing non-stoichiometric hydroxyapatite (HA) were deposited by method of radio-frequency (rf) magnetron sputtering. Plates of Ti, Ti6Al4V and 316 L SS were used as substrates. The thin coatings were characterized by EDX, ESEM, XRD, IR spectroscopy, HRTEM, nanoindentation and scratch-test. HRTEM observations of the coatings showed a nanocrystalline structure mixed with amorphous regions. It was found that the morphology, structure and the preferred orientation of the films are greatly affected by the parameters of deposition (rf-power, substrate temperature and voltage bias). The as-deposited modified CaP-based coatings are dense, pore-free and their composition resembles that of the precursor target composition. The Si- and Ag- containing HA coatings had a hardness of 10-12 GPa. A low rf-power (30 W) resulted in amorphous or low crystalline CaP coating structure. An increase in rf-power (>; 200 W) induced the coating crystallization. The occurrence of the different structure types is described as function of the bias voltage and temperatures. The negative substrate bias allowed to vary the Ca/P ratio in the range of 1.53 to 4. In vitro biocompatibility assessments of the films using the MG63 osteoblast-like cells indicated excellent cell adherence and surface colonization. Si-containing rf-magnetron films promote osteogenic differentiation of human stromal stem cells in vitro. The coatings are prospective to be used in clinical practice: in stomatology or craniofacial medicine, where the leaching of toxic ions from the substrate is necessary or the initial material surface porosity for a further bone in growth should be preserved.","PeriodicalId":319762,"journal":{"name":"2012 7th International Forum on Strategic Technology (IFOST)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127481394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
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