2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)最新文献_第5页

Iterative Approach to TLC Model Checker Application TLC模型检查器应用的迭代方法

2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2021-09-13 DOI: 10.1109/KhPIWeek53812.2021.9570055

V. Shkarupylo, I. Blinov, A. Chemeris, V. Dusheba, J. Alsayaydeh, A. Oliinyk

引用次数: 2

Structural Phase Transition in Glasses GexAsySe100-x-y 玻璃的结构相变

2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2021-09-13 DOI: 10.1109/KhPIWeek53812.2021.9570004

Svitlana Gapochenko, O. Lyubchenko

{"title":"Structural Phase Transition in Glasses GexAsySe100-x-y","authors":"Svitlana Gapochenko, O. Lyubchenko","doi":"10.1109/KhPIWeek53812.2021.9570004","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570004","url":null,"abstract":"Optical properties (refractive index n, optical bandgap Ego, slope of fundamental absorption edge $W$) and density of GexAsySe100-x-y ($0 leq mathrm{x} leq 30; 10 leq mathrm{y}leq 40$) chalcogenide glasses were studied at room temperature. The molar refraction of glasses was calculated using the Lorentz-Lorenz formula, and the ionicity of possible chemical bonds was estimated. The results were analyzed depending on the mean coordination number $langle (mrangle (langle mrangle = 2 + 0.01 (2mathrm{x}+mathrm{y})$ for GexAsySe100-x-y glasses). A different character of the dependences of all investigated physical properties on $langle mrangle$ was established in the ranges $2.1leqlangle mrangleleq 2.78$ and $2.78 leq langle mrangle leq 3$, which may indicate a qualitatively different structure of the corresponding glasses. Glasses of the first group can be classified as molecular solids, which are characterized by a significant van der Waals interaction, which is carried out mainly by lone-pair electrons of As and Se atoms. At $langle mrangleapprox 2.78$, a structural phase transition to a continuous three-dimensional glassy network was observed, accompanied by a qualitative rearrangement of the band structure of the alloys.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129891205","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

Development and Use of the Index of Particulate Matter Filter Efficiency in Environmental Protection Technology for Diesel-Generator with Consumption of Biofuels 生物燃料柴油发电机组环保技术中颗粒物过滤效率指标的研制与应用

2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2021-09-13 DOI: 10.1109/KhPIWeek53812.2021.9570034

O. Kondratenko, V. Andronov, V. Koloskov, O. Strokov

{"title":"Development and Use of the Index of Particulate Matter Filter Efficiency in Environmental Protection Technology for Diesel-Generator with Consumption of Biofuels","authors":"O. Kondratenko, V. Andronov, V. Koloskov, O. Strokov","doi":"10.1109/KhPIWeek53812.2021.9570034","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570034","url":null,"abstract":"This paper describes the results of improving of design and method of operation of the particulate matter filter of the reciprocating internal combustion engine with a high degree of physical and moral wear in the diesel generator as an actuator of environmental protection technology. The complex of mathematical models of performance indicators of the improved filter has been improved. Index of the efficiency of the particulate filter has been developed, which combines improved mathematical models of the filter into a single complex. Environmental protection technologies have been developed for a diesel generator, the engine of which is characterized by a high degree of physical and moral wear and tear and has no or lost the executive bodies of the air protection system. Algorithm for controlling the proposed technology has been developed, in which the control of the filter regeneration processes is carried out as a function of the developed efficiency index, and a mathematical apparatus for such control according to the psychophysical scale and characteristic map of electronic automatic control system.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120974792","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

Influence of Temperature on Energy Performance Indicators of Hybrid Solar Panels Using Cylindrical Cogeneration Photovoltaic Modules 温度对圆柱形热电联产光伏组件混合太阳能板能量性能指标的影响

2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2021-09-13 DOI: 10.1109/KhPIWeek53812.2021.9569975

S. Halko, O. Suprun, O. Miroshnyk

引用次数: 8

Hydrogen Interaction with Tungsten Disulfide Nanostructures 氢与二硫化钨纳米结构的相互作用

2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2021-09-13 DOI: 10.1109/KhPIWeek53812.2021.9570070

A. Laikhtman, A. Zak, J. Martínez, J. A. Alonso

{"title":"Hydrogen Interaction with Tungsten Disulfide Nanostructures","authors":"A. Laikhtman, A. Zak, J. Martínez, J. A. Alonso","doi":"10.1109/KhPIWeek53812.2021.9570070","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570070","url":null,"abstract":"We report here on hydrogenation of inorganic nanostructures of WS2 by various hydrogenation methods. Our methodology of hydrogen activation by cold plasma, either microwave or radiofrequency, resulted in substantial increase of the hydrogen adsorption rate. We elucidate the chemical state of so adsorbed/absorbed hydrogen by both experimental methods and using theoretical modelling with density functional theory (DFT). The experimental results revealed that hydrogen is mostly physisorbed it also confirmed its stability at the room temperature conditions along with relative simplicity of controlled release by moderate heating. The DFT calculations were in excellent agreement with the experiment showing the physisorbed state is energetically favorable in the case of surface adsorption in one or several layers. The DFT predicted some increase of the interlayer distance with no adverse influence on the energy balance. This phenomenon opens a new gate to implant foreign species inside the nanoparticles. The preliminary experimental results of Ga implantation following hydrogenation are excellent agreement with these DFT predictions.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122286942","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

Research of Energy Characteristics of Three-Phase Voltage Source Inverters with Modified Pulse Width Modulation 改进脉宽调制的三相电压源逆变器能量特性研究

2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2021-09-13 DOI: 10.1109/KhPIWeek53812.2021.9570071

O. Plakhtii, V. Nerubatskyi, S. Mykhalkiv, D. Hordiienko, D. Shelest, I. Khomenko

引用次数: 5

Practical Approach to Digital Control System of Cooperative Active Power Filter Design 协同有源电力滤波器数字控制系统设计的实用方法

2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2021-09-13 DOI: 10.1109/KhPIWeek53812.2021.9569970

V. Zamaruiev, B. Styslo

引用次数: 0

The Dynamics of the Bridge Converter to the Compensation Mode of Operation 桥式变换器对补偿工作模式的动力学研究

2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2021-09-13 DOI: 10.1109/KhPIWeek53812.2021.9570054

V. Boiko, M. Sotnyk, M. Buryk

引用次数: 2

A Comparative Study on the Structure and Absorption Properties of Thin-Film Hydrogen Storage Materials Based on Mg-N-H and $(mathrm{V}_{0.9}text{Ti}_{0.1})-mathrm{N}-mathrm{H}$ 基于Mg-N-H和$(mathrm{V}_{0.9}text{Ti}_{0.1})-mathrm{N}-mathrm{H}$的薄膜储氢材料结构和吸收性能的比较研究

2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2021-09-13 DOI: 10.1109/KhPIWeek53812.2021.9569965

O. Lyubchenko, Yu. O. Marchenko, O. Kalchenko, Olena Solopikhina

{"title":"A Comparative Study on the Structure and Absorption Properties of Thin-Film Hydrogen Storage Materials Based on Mg-N-H and $(mathrm{V}_{0.9}text{Ti}_{0.1})-mathrm{N}-mathrm{H}$","authors":"O. Lyubchenko, Yu. O. Marchenko, O. Kalchenko, Olena Solopikhina","doi":"10.1109/KhPIWeek53812.2021.9569965","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9569965","url":null,"abstract":"Nanocrystalline and nanoporous structures have been identified as a promising hydrogen storage solid material for fuel cell systems. Limited grain sizes and a branched system of grain boundaries are providing favorable conditions for acceleration and facilitation of the hydrogen diffusion and accumulation. In addition, the nanoporous structures have good gravimetric properties. This study reports on the accumulation and release of the large amounts of hydrogen by nanocrystalline Mg-N-H and nanoporous $left(mathbf{V}_{0.9} mathbf{T i}_{0.1}right)-mathbf{N}-mathbf{H}$ thin-film structures. A comparison of the structural changes during the hydrogen absorption and desorption has been carried out. The research revealed the relationship between the electrical resistance of investigated films and the amount of the hydrogen contained in them. It is shown that nano-porous $(mathrm{V}_{0.9} text{Ti}_{0.1})-mathrm{N}-mathrm{H}$ films have better kinetic properties than nanocrystalline Mg-N-H films, while their gravimetric and thermodynamic properties are broadly similar.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130391097","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

Biomedical engineering in Ukraine: development of computer modeling of biological objects 乌克兰的生物医学工程:生物物体计算机建模的发展

2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek) Pub Date : 2021-09-13 DOI: 10.1109/KhPIWeek53812.2021.9570036

N. Kovalenko, I. Borodai

{"title":"Biomedical engineering in Ukraine: development of computer modeling of biological objects","authors":"N. Kovalenko, I. Borodai","doi":"10.1109/KhPIWeek53812.2021.9570036","DOIUrl":"https://doi.org/10.1109/KhPIWeek53812.2021.9570036","url":null,"abstract":"The formation of scientific research in the fields of physiology, biology and ecology in Ukraine is studied. It is proved that the development of information technology and software for research and improvement of natural and artificial biological objects began in the middle of the 20th century with the widespread use of computer technology. It is established that in the 1990s, Ukrainian scientists from research institutions of the NAAS system using economic-mathematical modeling developed computer programs that optimized the functioning of biological objects by using large amounts of data in plant growth optimization models. It is established that at the beginning of the 21st century the researches of Ukrainian scientists A.B. Achasov, S.A. Baliuk, S.Yu. Bulygin, M.M. Kotova, R.V. Ternova, D.O. Timchenko in the field of biomedical engineering developed in collaboration with foreign scientists. In particular, the effectiveness of economic and mathematical models created by American scientists in the form of computer applications to establish the ecological role of plants, they theoretically confirmed in the soil and climatic conditions of Ukraine and China. The value of the WEPP (Water Erosion Prediction Project) computer simulation model, which is used to calculate the processes of water erosion in the soil, has been established. Dynamic computer model WEPS (Wind Erosion Prediction System), which is used to plan soil protection technologies against wind erosion. The dynamic computer model EuroSEM (European Soil Erosion Model), which was developed to better describe erosion phenomena in agroecosystems. It is proved that the priority direction of research of Ukrainian scientists in establishing the efficiency of biological objects is the use of space imaging technologies, which contributed to the stabilization and increase of efficiency of agroecosystems.","PeriodicalId":365896,"journal":{"name":"2021 IEEE 2nd KhPI Week on Advanced Technology (KhPIWeek)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128206983","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