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Pareto Optimization as the Basic for Selecting Robotic Mechanic Assembly Technologies

Applied Mathematics 2024年第6期15卷 421-439页

作者： Valerii Kyrylovych Dragoljub Tanovic dmytro Melnychuk Liudmyla Mohelnytska Petro Melnychuk Valery Yanovsky Faculty of Computer-Integrated Technologies Mechatronics and Robotics Zhytomyr Polytechnic State University Zhytomyr Ukraine Faculty of Mechanical Engineering University of Belgrade Belgrade Serbia

The task of selecting robotic mechanic assembly technologies (RMAT) is considered as a multi-criteria optimization task, which in this formulation is solved on the set of previously obtained solutions regarding the selection of RMAT. The purpose of the paper is to increase the efficiency of technological preparation of robotic mechanical assembly production of machine and instrument engineering due to a new approach to the selection of RMAT using Pareto optimization and the peculiarities of the selection task formulation. The novelty consists in the further development of a science-based approach to solving multi-criteria selection task, based on the first proposed formalisms of the specified process, which reflect the peculiarities of the selection task formulation, its meaningful essence and the content of the Pareto optimization method. The practical value of the research lies in the proposed engineering-acceptable approach to solving applied multi-criteria selection tasks on the example of RMAT selection, which is invariant to the statement of the selection task, the dimension of the task, and its meaningful essence. The methods of discrete optimization, fuzzy multi-criteria selection of alternatives, and the Pareto optimization method were used for the research. The main results of this work consist of the development of formalisms and the demonstration of the efficiency of the proposed approach for the applied task of RMAT selection. The peculiarity of the developed approach is the combination of Pareto optimization, performed on a discrete set of local criteria. Directions for further research are presented.

关键词： Multicriteria Optimization Efficiency Fuzzy Multicriteria Selection of Alternatives

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Manifestation of Key Molecular Genetic Markers in Pharmacocorrection of Endogenous Iron Metabolism in MCF-7 and MCF-7/DDP Human Breast Cancer Cells

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CellBio 2013年第4期2卷 217-227页

作者： Vasyl’ Chekhun Natalia Lukianova dmytro Demash Tetiana Borikun Svyatoslav Chekhun Yulia Shvets Department of Mechanisms of Antitumor Therapy R.E. Kavetsky Institute of Experimental Pathology Oncology and Radiobiology NAS of Ukraine Kyiv Ukraine

Effects of the nanocomposite and its components (magnetic fluid, cisplatin) on the level of endogenous iron exchange and the key links of genetic and epigenetic regulation of apoptotic program of sensitive and resistant MCF-7 cells were examined. We showed genetic and epigenetic mechanisms of action of nanocomposite of magnetic fluid and cisplatin. Nanocomposite caused elevation of number of cells in apoptosis in sensitive and especially resistant MCF-7 cells compared to cisplatin alone. It was proved that impact of nanocomposite on MCF-7/S and MCF-7/DDP cells caused more significant changes in expression of apoptosis regulators p53, Bcl-2 and Bax. We also suggested that changes in endogenous iron homeostasis and activation of free radical processes caused significant impact on apoptosis. Those changes included changes in methylation and expression of transferrin, its receptors, ferritin heavy and light chains (predominantly in resistant cell line), which caused activation of free radical synthesis and development of oxidative stress. We also showed that nanocomposite impact resulted into significant changes in expression of miRNA-34a and miRNA-200b, which regulated apoptosis, cell adhesion, invasion and activity of ferritin heavy chains gene. Thus, use of nanocomposite containing cisplatin and ferromagnetic as exogenous source of Fe ions caused changes of endogenous iron levels in sensitive and resistant cells allowing to increase specific activity of cytostatics and overcome factors, which promoted MDR development. Pharmacocorrection of endogenous iron metabolism allowed increasing antitumor activity of cisplatin and overcoming drug resistance.

关键词： Nanocomposite Iron Metabolism Apoptosis ROS Drug Resistance Breast Cancer Cells

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Information Technology in Environmental Monitoring for Territorial System Ecological Assessment

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Journal of Environmental Science and Engineering(A) 2015年第2期4卷 79-84页

作者： Oleksandr Trofymchuk dmytro Kreta Mykyta Myrontsov Viacheslav Okhariev Viktor Shumeiko Snizhana Zagorodnia Institute of Telecommunications and Global Information Space National Academy of Science of Ukraine Kyiv 03186 Ukraine Department of Lifting Vehicle Radio Technical Systems Kharkiv Aviation Institute National Aerospace University Kharkiv 61070Ukraine

The environmental monitoring dataset of Rivne region territory （Ukraine） was analyzed using remote sensing technology and statistical analysis. The article reveals approaches to anthropogenic impact specificity assessment based on methods of correlation analysis. The information technology to assess soil quality based on satellite images decoding was created.

关键词： Environmental safety anthropogenic impact environmental monitoring correlation analysis remote sensing.

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Electrochemical Synthesis of Chromium Silicides from Molten Salts

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Journal of Chemistry and Chemical Engineering 2014年第9期8卷 845-848页

作者： Liliia Molotovska dmytro Shakhnin Oleksandr Podyman Viktor Malyshev Nataliya Uskova Viliam Pavlik Vernadsky Institute of General and Inorganic Chemistry of the NAS (National Academy of Science) of Ukraine Kiev 03142Ukraine Institute of lnorganic Chemistry Slovak Academy of Sciences Bratislava 994536 Slovak Republic

Electrochemical synthesis of chromium silicides from NaCl-KCl-K2SiF6-CrF3 system has been investigated by cyclic voltammetry and DC （direct current） electrolysis at 850℃. The process of Cr and Si joint electroreduction in chloride-fluoride melt proceeds in one stage in a kinetic mode. The cathode product was analyzed using XRD （X-ray diffraction） method. XRD data have confirmed that CraSi is the dominant phase. SEM （scanning electron microscopy） results have shown that Cr3Si powder samples consist of 50-150 lain particles and that tungsten silicide was formed at the surface of tungsten cathode after chrome-free system electrolysis.

关键词： Chromium silicide fluoride molten salt electrochemical synthesis.

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关于体演文化教学法在对外汉语教学中的应用——乌克兰人在杭州体演中国文化为例

关于体演文化教学法在对外汉语教学中的应用——乌克兰人在杭州体...

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作者：季马（Koliesov dmytro）浙江大学

学位级别：硕士

随着中国国力的提升,越来越多的乌克兰人对汉语和中国文化产生了兴趣。语言是一种将教育、经济、科学和技术、外交事务甚至是政治联系起来的工具。因为会说汉语的乌克兰人会有很多就业的机会,所以越来越多的乌克兰年轻人决定开始学习中... 详细信息

随着中国国力的提升,越来越多的乌克兰人对汉语和中国文化产生了兴趣。语言是一种将教育、经济、科学和技术、外交事务甚至是政治联系起来的工具。因为会说汉语的乌克兰人会有很多就业的机会,所以越来越多的乌克兰年轻人决定开始学习中文,乌克兰和中国大学之间的合作提升也给乌克兰学生提供了很多在中国留学的机会。根据乌克兰驻中华人民共和国大使馆的统计:2017年,共有2600名乌克兰学生在中国学习,其中约200名在杭州留学。这说明来华的乌克兰人数量是非常大的。大多数来中国留学的乌克兰留学生都有学汉语的背景。然而,根据作者的经验和采访数据,乌克兰的汉语教育中存在一些比较明显的问题。汉语教师的教学首要任务和目标是帮助学生掌握语言要素,汉语学习主要借助于学生的母语于汉语之间的翻译。学生们在乌克兰上汉语课很少有练习口语的机会,导致出国的时候学生不能使用汉语进行有效的交际,出现“哑巴汉语”的情况。文化教育也常常被忽视,因此学生对中国语言和非语言文化没有具体的了解。这都使得这些学生不愿意在中国用汉语交流。作者尝试使用由俄亥俄州立大学Galal Walker教授设计的对外汉语教学法——体演文化教学法。该课程的目标是通过体演文化教学法的应用,改善当代乌克兰汉语教育的口语实践及跨文化教学部分。笔者并无意于用体演文化教学法来代替当代乌克兰汉语教育,目的只在于设置额外的课程,希望本课程能够给学生提供模拟在杭州生活的语境,帮助学生做好准备,能在实际到达杭州之后跟中国人有效地进行交流。此外,本课程的目标是提升乌克兰学生对中国文化的认知,从而提高学生在杭州生活的适应力。通过本课程,原本对乌克兰人来说神秘的中国文化、陌生的城市会变成已经经历过的事情。基于在乌克兰几乎没有汉语语境的事实,笔者希望在一个星期之内给学生们提供三个小时模拟汉语语境的机会,帮助他们增强口语能力和跨文化交际能力。

关键词：体演文化教学法乌克兰汉语教学跨文化交流

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Rice Gene Index:A comprehensive pan-genome database for comparative and functional genomics of Asian rice

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Molecular Plant 2023年第5期16卷 798-801页

作者：于志超陈永明周勇张雨露李梦圆欧阳亦聃 dmytro Chebotarov Ramil Mauleon 赵虎谢为博 Kenneth L.McNally Rod A.Wing 郭伟龙张建伟 National Key Laboratory of Crop Genetic Improvement Hubei Hongshan LaboratoryHuazhong Agricultural UniversityWuhan 430070China Frontiers Science Center for Molecular Design Breeding Key Laboratory of Crop Heterosis and Utilization(MOE)and Beijing Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing 100193China Center for Desert Agriculture Biological and Environmental Sciences&Engineering Division(BESE)King Abdullah University of Science and Technology(KAUST)Thuwal 23955-6900Saudi Arabia International Rice Research Institute(IRRI) Los Ban˜osLaguna 4031Philippines Arizona Genomics Institute School of Plant SciencesUniversity of ArizonaTucsonAZ 85721USA

Dear Editor,Asian rice(Oryza sativa)is the staple food for half the world and is a model crop that has been extensively *** contributes20%of calories to the human diet(Stein et al.,2018).With the increase in global population and rapid changes in climate,rice breeders need to develop new and sustainable cultivars with higher yields,healthier grains,and reduced environmental footprints(Wing et al.,2018).Since the first gold-standard reference genome of rice variety Nipponbare was published(International Rice Genome Sequencing Project,2005),an increasing number of rice accessions have been sequenced,assembled,and annotated with global ***,a single reference genome is obviously insufficient to perform the genetic difference analysis for rice ***,the pan-genome has been proposed as a solution,which allows the discovery of more presence-absence variants compared with single-reference genome-based studies(Zhao et al.,2018).Over the past years,several databases,such as RAP-db(https://***),RGAP(http://***),and Gramene(https://***),have long-term served rice genomic research by providing information based on one or a series of individual reference *** integrate and utilize the genomic information of multiple accessions,we performed comparative analyses and established the user-friendly Rice Gene Index(RGI;https://***)*** is the first gene-based pan-genome database for rice.

关键词： sativa comprehensive cultivar

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电池热管理系统的实验研究：翅片与间隔对电池组散热的影响

电池热管理系统的实验研究：翅片与间隔对电池组散热的影响

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作者：帝玛（dmytro Bosyi）天津大学

学位级别：硕士

近年来,随着经济社会的发展和人民生活水平的提高,小型汽车已逐步走进千家万户,成为人们出行的必备之物。电动汽车凭借其零排放、噪声小、结构简单、能源利用效率高等诸多优点,已成为新能源汽车的首选。然而,动力电池一直是制约新能源... 详细信息

近年来,随着经济社会的发展和人民生活水平的提高,小型汽车已逐步走进千家万户,成为人们出行的必备之物。电动汽车凭借其零排放、噪声小、结构简单、能源利用效率高等诸多优点,已成为新能源汽车的首选。然而,动力电池一直是制约新能源汽车发展的技术瓶颈,存在着成本较高、能量密度较低、寿命短、间接污染严重、输电配电设施不健全等诸多问题。锂离子电池因为具有诸多优点,已成为电动汽车的主要电源。但是,锂离子电池在使用时会产生大量的热量,若不采取有效的热管理措施,将导致电池组温度过高、单体电池间温度分布不均衡等问题,严重影响电池组的使用寿命和动力性能,甚至会因高温而产生安全问题。因此,开发利用合理的电池组热管理系统,优化电池组的散热结构显得尤为重要。本文以磷酸铁锂动力电池为研究对象,介绍了锂离子电池的产热机理和温度特性,设计和组装了实验系统,并进行了各种工况条件下的充放电实验,实验条件主要是改变电池组的冷却方式和放电倍率。冷却方式包括无间隙自然冷却、等间隙自然冷却、加装纯铝翅片自然冷却、加装纯铜翅片自然冷却等,采用的放电倍率主要有0.5C、1C、1.5C、2C、2.5C、3C。通过对不同工况下最高、最低温度点位置以及最大温升、最大温差等参数的分析,研究了电池间距、放电倍率、放电深度、翅片厚度、翅片高度、翅片材料等因素对电池组温度分布及其变化特性的影响。研究结果表明:电池组的最大温升和最大温差均随着放电深度的增加而升高;电池放电初期和末期温升较快,放电中期温升较慢;电池组的最高温度分布在中央电池电极下方,最低温度分布在电池组外侧电池的外表面下方,且整个放电过程中电池组的最高、最低温度点位置较为稳定;恒流放电倍率增大,同一结构下电池组的最大温升和最大温差均随之增大,即热管理难度增加;在电池单体间留有一定间隙并不能有效改善电池组的温度分布,且在一定程度上加剧了电池组温度分布的不均匀性;电池间加装金属翅片可显著改善电池组的温度分布,且存在一个最佳翅片高度;在翅片高度一定的情况下,翅片越厚,热管理效果越好,但电池系统的质量也随之增加;同时,采用导热系数较大的翅片材料,可显著改善电池组的温度分布。当今时代,经济社会快速发展,人民生活水平逐渐提高,小型汽车逐渐走进千家万户,已经成为我们日常生产生活中不可或缺的一部分[1]。汽车工业的迅猛发展极大地便利了人们的生活,也带动了相关产业的繁荣和发展[2]。然而汽车数量的陡然增加,增加了日益枯竭的化石燃料的消耗,大量产生CO2等温室气体引发了全球范围内的气候变暖,同时产生的PM2.5等有毒物质还造成了严重的雾霾天气,给人们的出行和健康带来了许多不便和伤害,开发利用低污染、高性能的新能源汽车已成当务之急。长期以来,党和国家十分重视发展新能源汽车,并给予了大量的政策扶持[3]。通过国家新能源技术重点项目的研究攻关,我国在动力电池、电机、控制器、充电桩等领域获得了重大突破,掌握了多项具有自主知识产权的关键技术。通过政府政策的倾斜,不仅加大了对充电站、充电桩等基础设施的投入,还对购买电动汽车的民众进行相应优惠补贴[4]。同时,我国大多数汽车企业为了争取在新能源汽车领域占据一定的市场,不断加大新电动汽车的专项研发费用。电动汽车有节能环保的特点,可以满足人们长距离行驶的要求,以电动汽车为代表的新能源汽车已逐步为市场所接受,销量也开始有了可喜的突破,未来有望取代传统汽车,成为千家万户的必备工具。根据新能源汽车驱动方式的不同,可将其分为纯电动汽车、混合动力汽车和燃料电池汽车[5]。纯电动汽车:只依靠电能驱动的车辆,通过充电设备对其进行充电,不需要其他能量。主要优点是结构简单、噪声较小、保养便宜、补贴较高、起动和加速性能良好。缺点为续航里程短、充电时间长、电池价格贵、寿命衰减快、电桩数量少[6]。代表车型如比亚迪腾势、特斯拉Model S、华晨宝马之诺、北汽E150ev、江淮和悦iEV等。混合动力汽车:在普通汽车的发动机处加入电动机,以改善发动机在起动、低速以及加速阶段的油耗和排放,让发动机一直在最高效区域工作,减轻油耗、排放的压力。通常能够在纯电动、纯油、油电混合三种模式下运行。根据是否需要外加充电设备以及发动机是否直接驱动行驶可以分为普通混合动力汽车、插电式混合动力汽车以及增程式混合动力汽车[7］。其优点是可自由选择驱动模式、动力性能好、无需热车、节约油耗、高续航、充电时间短等,缺点为结构复杂、价格昂贵、补贴较少、高速巡航能力差、车型较少等。代表车型如雷克萨斯CT200h、丰田PRIUS、比亚迪秦、宝马i3、本田飞度Hybrid等。燃料电池汽车:以氢气和氧气的化学作用产生的电能作为驱动力的车辆。其主要优点为结构简单、原料来源广、加氢便捷、没有任何污染等。缺点为氢气生产成本高、存储困难,建设加氢站成本高,高压氢气安全性能较差。代表车型如丰

关键词：电动汽车锂离子电池热管理自然冷却对流换热翅片安全

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Tungsten Resource-Saving： Cobalt Cermets Wastes Recycling and Concentrates Extraction

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Journal of Environmental Science and Engineering(B) 2015年第10期4卷 521-528页

作者： Viktor Malyshev dmytro Shakhnin Angelina Gab Nataliya Uskova Oleksandr Gudymenko Volodymyr Glushakov Nina Kushchevska Department of Physical Chemistry of Ionic Liquids EL Vernadsky Institute of General and Inorganic Chemistry National Academy of Sciences of Ukraine Kyiv 03142 Ukraine Faculty of Chemistry & Technology National Technical University of Ukraine "Kyiv Polytechnical Institute" Kyiv 03056 Ukraine Faculty of Engineering & Technology University "Ukraine" Kyiv 03115 Ukraine

Potentials range is determined in which the cobalt-tungsten alloy phase selectively dissolved in solutions of phosphoric acid to form soluble compounds of these metals, while the tungsten carbide phase remains in the precipitate. It shows that tungsten ores and concentrates are decomposed at 1,050℃-1,100℃ in sodium chloride-sodium metasilicate melts to form two immiscible phases, namely, halide-tungstate, containing 96% to 99% of tungsten, and silicate, containing 90% of the rest ore components.

关键词： Tungsten carbide cobalt halide-metasilicate melts phosophric acid electrochemical dissolution recycling extraction.

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Synthesis of VIB Group Metals Silicides Dispersed Powders by Electrolysis of Halide-Oxide Melts

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Journal of Chemistry and Chemical Engineering 2016年第1期10卷 7-12页

作者： Liliia Molotovska dmytro Shakhnin Natalia Uskova Ganna Nikulina Vladymyr Cherednik Serge Stukota Viktor Malyshev Department of Physical Chemistry of lonic Liquids V. I. Vernadsky Institute of General and Inorganic Chemistry National Academy of Sciences of Ukraine 32/34 Palladina Ave. Kyiv 03142 Ukraine Faculty of Engineering & Technology University of Ukraine 23 L vivska St. Kyiv 03115 Ukraine

Study of electrochemical behavior of chromium （molybdenum, tungsten） and silicon containing melts allowed defining conditions for synthesis of silicides of chromium, molybdenum and tungsten in the form of fine powders by electrolysis of halide-oxide melts. Sequence of stages of electrosynthesis of silicides of molybdenum and tungsten was found as follows： deposition of more electroposifve metal （molybdenum or tungsten）, deposition of the second component （silicon） on the surface of metal deposited previously, and reaction diffusion of silicon into the deep of the metal-salt ＂pear＂ with the formation of silicide phases of different compositions up to the higher silicides. In contrast, during the electrodeposition of chromium silicides, one of the components （chromium） is deposited not in elemental form, but in oxide form, and the other （silicon） acts as a reducing agent for this oxide to form binary compounds. Duration of the synthesis first stage （deposition of refractory metal or of its oxide） depends on the refractory metal compound content in the system and on the cathode current density. Synthesis of silicides is possible due to retention of powders of molybdenum （tungsten） or chromium oxide at the cathode without scaling. Optimal values of concentrations ratio, current density, temperature, and duration of electrosynthesis were found. Phase composition of products were obtained, as well as their chemical and thermal stability, were studied.

关键词： Chromium molybdenum tungsten silicides synthesis dispersed powders ionic melts.

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The influences of meteorological factors on the health and functional state of human

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Health 2013年第12期5卷 2068-2076页

作者： Reza Sharafi Volodymyr B. Bogdanov dmytro S. Gorlov Yuriy P. Gorgo Kyiv Polytechnic Institute Kiev Ukraine Taras Shevchenko National University of Kyiv Kiev Ukraine University of Liege Liege Belgium

The influence of fluctuations of atmospheric pressure on the functional state of the humans was studied during spring, autumn and winter seasons. Sensory-motor reaction time and selfreported wellbeing, activity and mood were used for evaluation of functional state. The inter-individual variations of those parameters were compared to meteorological parameters using rank order correlation and general linear model. It was found that atmospheric pressure fluctuations have a stronger negative effect with periods of 120-1200 s and 20-120 s on psychological self-assessment and with periods of 10-20 s and 5-10 s on sensory-motor reaction time than the fluctuations with other periods.

关键词： Weather Functional State Reaction Time Task Wellbeing Activity Mood

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