Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.最新文献
Pub Date : 2003-04-07DOI: 10.1109/SPCMTT.2003.1438217
V. Usachev, I. Kovalev
This paper aims to develop a mathematical formula for determining teaching quality considering that students are complex and they are prone to forgetting. The teaching process can be represented as a sequence of lessons beginning at the specific moments of time that are generally not equidistant. The sequence of teaching effects which will transfer the pupil into a preassigned final state in a definite sense has to be optimal. The algorithm which carries out the transfer process at the earliest possible time is considered to be the best.
{"title":"Adaptive technology of the education quality control","authors":"V. Usachev, I. Kovalev","doi":"10.1109/SPCMTT.2003.1438217","DOIUrl":"https://doi.org/10.1109/SPCMTT.2003.1438217","url":null,"abstract":"This paper aims to develop a mathematical formula for determining teaching quality considering that students are complex and they are prone to forgetting. The teaching process can be represented as a sequence of lessons beginning at the specific moments of time that are generally not equidistant. The sequence of teaching effects which will transfer the pupil into a preassigned final state in a definite sense has to be optimal. The algorithm which carries out the transfer process at the earliest possible time is considered to be the best.","PeriodicalId":391891,"journal":{"name":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115677499","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}
Pub Date : 2003-04-07DOI: 10.1109/SPCMTT.2003.1438219
N.B. Danileno, S. Sizov
Compounds of mercury, chrome and arsenic are very dangerous to man due to their instability and their interaction with fats, providing long periods of partial ejection, i. e. the time during which half of the agent assimilated with the organism ejects or destructs. Hence, the control of mercury, chrome and arsenic content in the water is very critical. In this paper, the sorption capabilities of the nano-powders of aluminum oxide and aluminum hydroxide of the class "HCh" annealed at the temperature 450 degC with respect to Hg (II), As (III), Cr (VI) for water purification are examined.
{"title":"Absorption of the Cr(VI), Hg(II), As (III) ions with the Al/sub 2/O/sub 3/ nano-powder from the water","authors":"N.B. Danileno, S. Sizov","doi":"10.1109/SPCMTT.2003.1438219","DOIUrl":"https://doi.org/10.1109/SPCMTT.2003.1438219","url":null,"abstract":"Compounds of mercury, chrome and arsenic are very dangerous to man due to their instability and their interaction with fats, providing long periods of partial ejection, i. e. the time during which half of the agent assimilated with the organism ejects or destructs. Hence, the control of mercury, chrome and arsenic content in the water is very critical. In this paper, the sorption capabilities of the nano-powders of aluminum oxide and aluminum hydroxide of the class \"HCh\" annealed at the temperature 450 degC with respect to Hg (II), As (III), Cr (VI) for water purification are examined.","PeriodicalId":391891,"journal":{"name":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115071946","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}
Pub Date : 2003-04-07DOI: 10.1109/SPCMTT.2003.1438201
V. Shipunov, P. Razumov, E. O. Kuptsov
In solving the problem of multiterminal combination logical circuit synthesis, the circuit complexity (cost, dimension) and its operating speed are the criteria for optimization. While it is difficult to obtain an acceptable combination, a compromise between these parameters is recommended. By optimizing the two-level presentations, the minimal (short) function can be determined. The problem of the Boolean function minimization is the determination of the function minimal by the number of literals (minimal function) or by the number of conjunctions (short one). In optimizing multi-level presentations the methods of decomposition and factorization are used. Conjunctions factorization is the method of algebraic change of the conjunctions factors of one Boolean variable: factors including not less than two literals are extracted.
{"title":"Some peculiarities of the designed logical circuit optimization","authors":"V. Shipunov, P. Razumov, E. O. Kuptsov","doi":"10.1109/SPCMTT.2003.1438201","DOIUrl":"https://doi.org/10.1109/SPCMTT.2003.1438201","url":null,"abstract":"In solving the problem of multiterminal combination logical circuit synthesis, the circuit complexity (cost, dimension) and its operating speed are the criteria for optimization. While it is difficult to obtain an acceptable combination, a compromise between these parameters is recommended. By optimizing the two-level presentations, the minimal (short) function can be determined. The problem of the Boolean function minimization is the determination of the function minimal by the number of literals (minimal function) or by the number of conjunctions (short one). In optimizing multi-level presentations the methods of decomposition and factorization are used. Conjunctions factorization is the method of algebraic change of the conjunctions factors of one Boolean variable: factors including not less than two literals are extracted.","PeriodicalId":391891,"journal":{"name":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115083856","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}
Pub Date : 2003-04-07DOI: 10.1109/SPCMTT.2003.1438183
A. Godimchuk, A.R. llyin
The aim of the present work was to analyze the structural and chemical transformations in natural minerals with an increase in temperature. The natural calcium-magnesia minerals of silicate and carbonate rocks were selected for study. The series of minerals "quartz-wollastonite-marble-diopside-dolomite-tremolite" allows to learn principles of phase composition change and structure from SiO2 (100%) up to CaCO3 (100%). The results of EM have shown, that heat treatment lead to destruction of needle-like structure of tremolite crystals. The dates of DTA also testified as changes in tremolite composite. Endothermic effect at 830 degC and simultaneous decreasing of sample mass to 12% testified as process of calcite disintegration.
{"title":"The modification of natural minerals","authors":"A. Godimchuk, A.R. llyin","doi":"10.1109/SPCMTT.2003.1438183","DOIUrl":"https://doi.org/10.1109/SPCMTT.2003.1438183","url":null,"abstract":"The aim of the present work was to analyze the structural and chemical transformations in natural minerals with an increase in temperature. The natural calcium-magnesia minerals of silicate and carbonate rocks were selected for study. The series of minerals \"quartz-wollastonite-marble-diopside-dolomite-tremolite\" allows to learn principles of phase composition change and structure from SiO2 (100%) up to CaCO3 (100%). The results of EM have shown, that heat treatment lead to destruction of needle-like structure of tremolite crystals. The dates of DTA also testified as changes in tremolite composite. Endothermic effect at 830 degC and simultaneous decreasing of sample mass to 12% testified as process of calcite disintegration.","PeriodicalId":391891,"journal":{"name":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115556598","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}
Pub Date : 2003-04-07DOI: 10.1109/SPCMTT.2003.1438133
S.V. Schadenko, O. Zhdaneev
In the study of the kinetics of the physical processes in a lead vapor laser, the unsteady self-consistent discharge kinetics model of the lead vapor laser is necessary. To develop this model, the stiff differential equations system is used. To increase the solution efficiency, a multistep method, called the Gear method, is recommended. The Gear method allows the integration step value to be varied in a wide range while providing calculation stability.
{"title":"Solution methods review of the stiff differential equations systems","authors":"S.V. Schadenko, O. Zhdaneev","doi":"10.1109/SPCMTT.2003.1438133","DOIUrl":"https://doi.org/10.1109/SPCMTT.2003.1438133","url":null,"abstract":"In the study of the kinetics of the physical processes in a lead vapor laser, the unsteady self-consistent discharge kinetics model of the lead vapor laser is necessary. To develop this model, the stiff differential equations system is used. To increase the solution efficiency, a multistep method, called the Gear method, is recommended. The Gear method allows the integration step value to be varied in a wide range while providing calculation stability.","PeriodicalId":391891,"journal":{"name":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122557020","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}
Pub Date : 2003-04-07DOI: 10.1109/SPCMTT.2003.1438117
V. Korzhov
This paper aims to improve the safety criterion for humans who are within the effective area of a commercial frequency electric field. An experiment was performed to determine the different factors that affect the magnitude of current strength passing through the human body. The results confirm the advisability of developing normative values based on the current measurement passing through the human body close to super high voltage electrical installations.
{"title":"Improving electric field safety criterion of commercial frequency","authors":"V. Korzhov","doi":"10.1109/SPCMTT.2003.1438117","DOIUrl":"https://doi.org/10.1109/SPCMTT.2003.1438117","url":null,"abstract":"This paper aims to improve the safety criterion for humans who are within the effective area of a commercial frequency electric field. An experiment was performed to determine the different factors that affect the magnitude of current strength passing through the human body. The results confirm the advisability of developing normative values based on the current measurement passing through the human body close to super high voltage electrical installations.","PeriodicalId":391891,"journal":{"name":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122178369","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}
Pub Date : 2003-04-07DOI: 10.1109/SPCMTT.2003.1438189
A. Son
The unique physical and chemical, mechanical properties of nano- and submicrocrystalline materials are due to such factors as the small size of grains, defective structure of the grains boundaries, high level of the internal stresses, microstrainings of crystal lattice, and high density of grain-boundary dislocations. This paper considers the structure, mechanical characteristics and the peculiarities of plastic flow of SMC Armco-iron subjected to thermal annealing at different temperatures. Structural investigations were performed by the methods of translucent electron microscopy (TEM). Investigation of straining relief showed that regardless of the mode and the quantity of passages in even-channel angular pressing the samples of SMC alpha-Fe have high tendency to the straining localization. Mechanical properties of the investigated samples are determined by the mode of ECAP. Thermal annealing of the samples of SMC alpha-Fe allows one to change their mechanical characteristics within wide ranges.
纳米和亚微晶材料独特的物理、化学和力学性能是由于晶粒尺寸小、晶界结构缺陷、内应力大、晶格微应变大、晶界位错密度大等因素造成的。本文研究了SMC arm -iron在不同温度下经热处理后的结构、力学特性和塑性流动特性。用透射电镜(TEM)对其结构进行了研究。应变释放研究表明，在均匀通道角压下，SMC α - fe试样无论采用何种模态和通道数，都有较高的应变局域化倾向。研究样品的力学性能由ECAP模式确定。SMC α - fe样品的热退火可以在很大范围内改变其力学特性。
{"title":"Thermal annealing action on plastic deformation of submicrocrystalline alpha-iron","authors":"A. Son","doi":"10.1109/SPCMTT.2003.1438189","DOIUrl":"https://doi.org/10.1109/SPCMTT.2003.1438189","url":null,"abstract":"The unique physical and chemical, mechanical properties of nano- and submicrocrystalline materials are due to such factors as the small size of grains, defective structure of the grains boundaries, high level of the internal stresses, microstrainings of crystal lattice, and high density of grain-boundary dislocations. This paper considers the structure, mechanical characteristics and the peculiarities of plastic flow of SMC Armco-iron subjected to thermal annealing at different temperatures. Structural investigations were performed by the methods of translucent electron microscopy (TEM). Investigation of straining relief showed that regardless of the mode and the quantity of passages in even-channel angular pressing the samples of SMC alpha-Fe have high tendency to the straining localization. Mechanical properties of the investigated samples are determined by the mode of ECAP. Thermal annealing of the samples of SMC alpha-Fe allows one to change their mechanical characteristics within wide ranges.","PeriodicalId":391891,"journal":{"name":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129544770","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}
Pub Date : 2003-04-07DOI: 10.1109/SPCMTT.2003.1438107
A. Yurchenko, A. V. Koslov, V.K. Kovalevskiy
To provide the economically advantageous application of the solar energy on a wide scale, it is important to lower the cost prices and to rise the efficiency of a separate solar cell and the big solar batteries completed on its base and to build an adequate physical and mathematical model of the solar battery (SB) functioning under the condition of the environmental effects. This paper presents an experiment on solar battery performing on different conditions of the environment.
{"title":"Analysis of the solar battery efficiency under the natural conditions in Tomsk","authors":"A. Yurchenko, A. V. Koslov, V.K. Kovalevskiy","doi":"10.1109/SPCMTT.2003.1438107","DOIUrl":"https://doi.org/10.1109/SPCMTT.2003.1438107","url":null,"abstract":"To provide the economically advantageous application of the solar energy on a wide scale, it is important to lower the cost prices and to rise the efficiency of a separate solar cell and the big solar batteries completed on its base and to build an adequate physical and mathematical model of the solar battery (SB) functioning under the condition of the environmental effects. This paper presents an experiment on solar battery performing on different conditions of the environment.","PeriodicalId":391891,"journal":{"name":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129966923","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}
Pub Date : 2003-04-07DOI: 10.1109/SPCMTT.2003.1438121
M. Vasilevsky, E. Zykov
The paper is aimed at the generalization of experimental distributions of velocities, pressures in the swirl chamber as applied to the countercurrent dust separating cyclones, the peculiarities of the hydrodynamics of the apparatus with their parallel operation with general chambers of the gas input and output as well as the general chamber of the dust release and collection. In this case experimental materials on air mechanics of cyclone separators available in the literature are used. Determination of the conditions of the overflow occurrence between the elements, the influence of the concentration on the flows redistribution as well as the hydrodynamic situation in dust collecting bag on which the particles release into the dust collecting bag are presented.
{"title":"Flow characteristics in countercurrent cyclone","authors":"M. Vasilevsky, E. Zykov","doi":"10.1109/SPCMTT.2003.1438121","DOIUrl":"https://doi.org/10.1109/SPCMTT.2003.1438121","url":null,"abstract":"The paper is aimed at the generalization of experimental distributions of velocities, pressures in the swirl chamber as applied to the countercurrent dust separating cyclones, the peculiarities of the hydrodynamics of the apparatus with their parallel operation with general chambers of the gas input and output as well as the general chamber of the dust release and collection. In this case experimental materials on air mechanics of cyclone separators available in the literature are used. Determination of the conditions of the overflow occurrence between the elements, the influence of the concentration on the flows redistribution as well as the hydrodynamic situation in dust collecting bag on which the particles release into the dust collecting bag are presented.","PeriodicalId":391891,"journal":{"name":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124291989","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}
Pub Date : 2003-04-07DOI: 10.1109/SPCMTT.2003.1438170
A. N. Rybakov, A. V. Maneev
This paper aims to develop a means to estimate the practical efficiency of heart rate variability (HRV) analysis in the perioperative period to help define the adequacy of anesthesia. By monitoring the patient's status with the help of the indicated agents, the adequacy of anesthesia can be estimated and early diagnostics of complications originating during an anesthesia can be provided. For the anesthesiologist, it gives possibility to appreciate the various pathologies and possibility to take action for accident prevention. It is necessary to notice that in perioperative period the real-time usage of this calculation method requires control over sensors quality and level of noise. The fact is that the high level of industrial and surgery noises can decrease all advantages of this method.
{"title":"Experience of using analysis methods of heart rate variability in anesthesiology practice","authors":"A. N. Rybakov, A. V. Maneev","doi":"10.1109/SPCMTT.2003.1438170","DOIUrl":"https://doi.org/10.1109/SPCMTT.2003.1438170","url":null,"abstract":"This paper aims to develop a means to estimate the practical efficiency of heart rate variability (HRV) analysis in the perioperative period to help define the adequacy of anesthesia. By monitoring the patient's status with the help of the indicated agents, the adequacy of anesthesia can be estimated and early diagnostics of complications originating during an anesthesia can be provided. For the anesthesiologist, it gives possibility to appreciate the various pathologies and possibility to take action for accident prevention. It is necessary to notice that in perioperative period the real-time usage of this calculation method requires control over sensors quality and level of noise. The fact is that the high level of industrial and surgery noises can decrease all advantages of this method.","PeriodicalId":391891,"journal":{"name":"Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125765084","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}
Proceedings of the 9th International Scientific and Practical Conference of Students, Post-graduates Modern Techniques and Technologies, 2003. MTT 2003.
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