Eurasian Physical Technical Journal最新文献_第5页

LGORITHM FOR FINDING MAXIMUM POWER POINT TRACKING WHEN SHADOWING OR FAILURE OF SOLAR PANELPHOTO CELLS ON SATELLITES USING LOW ORBITS 低轨道卫星上太阳能电池板光电池遮挡或失效时最大功率点跟踪算法

Eurasian Physical Technical Journal Pub Date : 2023-03-20 DOI: 10.31489/2023no1/65-72

A. Syzdykov

引用次数: 0

TUDY OF THE INITIAL MAGNETIC PERMEABILITY OF LiTiZnMnFERRITES OBTAINED BY LIQUID-PHASE SINTERING UNDER RADIATION-THERMAL AND THERMAL CONDITIONS 液相烧结LiTiZnMn铁氧体在辐射热和热条件下的初始磁导率研究

Eurasian Physical Technical Journal Pub Date : 2023-03-20 DOI: 10.31489/2023no1/12-19

A. Surzhikov

引用次数: 0

COMPUTER MODELING OF PROPERTIES OF A COMPOSITE MATERIAL WITH POROUS FILLERS 多孔填料复合材料性能的计算机模拟

Eurasian Physical Technical Journal Pub Date : 2023-03-20 DOI: 10.31489/2023no1/56-64

O. Miryuk

引用次数: 0

PROJECT FOR MODIFYING THE SETUP FOR ADRON-55 TO IMPROVEITSBACKGROUND CHARACTERISTICS AND A REVIEW OF UNSOLVED PROBLEMS IN STUDIES OF EXTENSIVE AIR SHOWERS 修改adron-55设置以改善背景特性的项目，并回顾了广泛空气淋点研究中未解决的问题

Eurasian Physical Technical Journal Pub Date : 2023-03-20 DOI: 10.31489/2023no1/73-79

T. Sadykov

{"title":"PROJECT FOR MODIFYING THE SETUP FOR ADRON-55 TO IMPROVEITSBACKGROUND CHARACTERISTICS AND A REVIEW OF UNSOLVED PROBLEMS IN STUDIES OF EXTENSIVE AIR SHOWERS","authors":"T. Sadykov","doi":"10.31489/2023no1/73-79","DOIUrl":"https://doi.org/10.31489/2023no1/73-79","url":null,"abstract":"The article presents an overview of modern problems in studiesof Extensive Air Showers and works devoted to their investigation. It is demonstrated that over the past decade convincing evidence of the presence of a neutron component has beendemonstrated. When designing experimental facilities aimed at studying the nature of cosmic rays, this must be taken into account, since fast neutrons that arise outside the working volume can adversely affect the interpretation of the obtained data. In particular,if one tries to reveal the nature of penetrating component this effect is at most importance. Studies of biological shielding for thehigh flux research reactorPIKreactor at the Kurchatov Institute have shown that effective shielding from such neutrons can be provided by polyethylene in combination with borated rubber. At the same time, the use of boron-containing polyethylene does not lead to a significant improvement in protection, however, it significantly increases its cost. Based on foregoing, a modification of the hadron calorimeter protection is proposed to improve its protection it from the influence of the fast neutrons.","PeriodicalId":11789,"journal":{"name":"Eurasian Physical Technical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45813103","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

THE EFFECT OF MOLYBDENUM DISULFIDENANOPARTICLES ON THE PROPERTIES ZINC OXIDE ELECTRON TRANSPORT LAYER OF ORGANIC SOLAR CELLS 二硫化钼颗粒对有机太阳能电池氧化锌电子传递层性能的影响

Eurasian Physical Technical Journal Pub Date : 2023-03-20 DOI: 10.31489/2023no1/20-26

A. Aimukhanov

{"title":"THE EFFECT OF MOLYBDENUM DISULFIDENANOPARTICLES ON THE PROPERTIES ZINC OXIDE ELECTRON TRANSPORT LAYER OF ORGANIC SOLAR CELLS","authors":"A. Aimukhanov","doi":"10.31489/2023no1/20-26","DOIUrl":"https://doi.org/10.31489/2023no1/20-26","url":null,"abstract":"In this work, the effect of molybdenum disulfidenanoparticles on the properties zinc oxideelectron transport layer of organic solar cells is studied. molybdenum disulfidenanoparticles were obtained by laser ablation of MoS2 powder in isopropyl alcohol. To form composite films, nanoparticles were added to a sol–gel zinc oxidesolution with different concentrations.According to scanning electron microscope study, as the concentration of nanoparticles in the film increases, the thickness of the molybdenum disulfidelayer on the zinc oxide surface changes. molybdenum disulfidenanoparticles in the film structure gradually fill the bulk and surface voids inzinc oxide. However, when the concentration exceeds 1%, holes and voids are formed in the film. The absorption spectra of composite films showed that as the concentration of nanoparticles in the film increases, the absorption intensity enhances due to theincrease of the overall thickness. At the same time, zinc oxideoptical band gap width doesnot change, which means the molybdenum disulfidenanoparticles do not affect the electronic structure of zinc oxide. It was shown that the observed changes in the volt-ampere characteristicof organic solar cells with composite films electron transport layer composite films was associated with the influence of molybdenum disulfidenanoparticles on electron transport in organic solar cells.According to impedance spectroscopy study, it was found that molybdenum disulfidenanoparticles at concentration below critical value increases the lifetime of charge carriers and the diffusion coefficient in composite film.","PeriodicalId":11789,"journal":{"name":"Eurasian Physical Technical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47975714","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

Study of the influence of radiation-induced damage accumulation during the interaction of heavy Xe22+ ions on changes in the thermophysical parameters of zirconia ceramics 重Xe22+离子相互作用过程中辐射损伤积累对氧化锆陶瓷热物性参数变化的影响研究

Eurasian Physical Technical Journal Pub Date : 2023-03-20 DOI: 10.31489/2023no1/5-11

A.L. A.L. Kozlovskiy

{"title":"Study of the influence of radiation-induced damage accumulation during the interaction of heavy Xe22+ ions on changes in the thermophysical parameters of zirconia ceramics","authors":"A.L. A.L. Kozlovskiy","doi":"10.31489/2023no1/5-11","DOIUrl":"https://doi.org/10.31489/2023no1/5-11","url":null,"abstract":"The aim of this paper is to evaluate the influence of the processes of radiation-induced damage formation in the form of point defects, dislocations and vacancies, as well as their accumulation and the formation of locally disorderedregions in the near-surface layer of zirconia ceramics under irradiation with heavy Xe22+ions with an energy of 230 MeV, on the change in the thermophysical properties of ceramics. The choice of the ion type for irradiation is due to the possibilities ofmodeling radiation damage processes comparable to the impact of uranium nuclei fission fragments during nuclear reactions in nuclear fuel. The choice of materials for irradiation in the form of ZrO2ceramics is due to the prospects for their use as the main material for inert matrices of dispersed nuclear fuel for new generation reactors. This choice is due to the physicochemical, thermophysical and strength properties of ZrO2ceramics, which are more resistant than other types of oxide ceramics. During research, it was found that the formation of isolated locally heterogeneous regions at low irradiation fluences does not lead to significant changes in the thermophysical properties of the damaged ceramic layer. However, polymorphic transformations of the t-ZrO2 → c-ZrO2type, which occur at irradiation fluences above 1012ion/cm2, lead to a decrease in thermal conductivity and the appearance of heat losses associated with the disruption of the phonon heat transfer mechanisms in the damaged layer.","PeriodicalId":11789,"journal":{"name":"Eurasian Physical Technical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48134754","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

MODELING THE DYNAMICS OF HEAT AND MASS TRANSFER PROCESSES IN A TUBULAR HEAT EXCHANGER UNDER PULSED INFLUENCES 脉冲影响下管式换热器传热传质过程的动力学建模

Eurasian Physical Technical Journal Pub Date : 2023-03-20 DOI: 10.31489/2023no1/51-55

S. Sakipova

引用次数: 0

BTAINING OF CALCIUM-PHOSPHATE COATINGS ON THE TITANIUM SURFACE BY MICRO-ARC OXIDATION 微弧氧化法在钛表面制备磷酸钙涂层

Eurasian Physical Technical Journal Pub Date : 2023-03-20 DOI: 10.31489/2023no1/34-41

D. Baizhan

引用次数: 0

PERFORMANCE IMPROVEMENTOF SOLAR DRYER USINGAN AUXILIARY HEAT SOURCE UNDER DIFFERENT VALUES OF AIRFLOW RATES 采用辅助热源的太阳能干燥机在不同风量下的性能改善

Eurasian Physical Technical Journal Pub Date : 2023-03-20 DOI: 10.31489/2023no1/42-50

L.A. Alkahdery

{"title":"PERFORMANCE IMPROVEMENTOF SOLAR DRYER USINGAN AUXILIARY HEAT SOURCE UNDER DIFFERENT VALUES OF AIRFLOW RATES","authors":"L.A. Alkahdery","doi":"10.31489/2023no1/42-50","DOIUrl":"https://doi.org/10.31489/2023no1/42-50","url":null,"abstract":"One of the most crucial methods for preserving agricultural produce is solar drying. The major focus of this paper is increasing solar drying systems' effectiveness. The development of new methods and variables that may have an impact on the functionality of solar dryers aids in enhancing their efficiency. An indirect-type solar dryer for drying agricultural products is proposed and developed in this study. A dryer consisting of a solar flat plate air collector, an insulated drying chamber, an auxiliary (electric) heat source, and an electric fan is constructed to improve the dryer's performance. The dryer's most typical function is to blow hot air at the product, forcing the water in it to evaporate. The effect of air temperature and velocity on evaporation rate has been studied experimentally. Tests with three different airflow rates—0.042, 0.0735, and 0.105 m3/s—are conducted. When there is little or no solar radiation, an auxiliary heater is used to provide sufficient heat. For varying airflow rates, solar mode and electrical mode were tested experimentally with only one energy source in each mode. The findings revealed that using a different heat source in addition to solar radiation will allow you to keep the air temperature in the drying chamber between 32oCand 42oC. Also, it was found that for the whole drying process at high air velocities, the temperature had less influence on the dryer's performance.","PeriodicalId":11789,"journal":{"name":"Eurasian Physical Technical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46974005","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

YNAMIC VISCOSITY OF THE LUBRICANT AND ITS EFFECT ON STEEL MATERIALS WITH BORON 润滑剂的动态粘度及其对含硼钢材料的影响

Eurasian Physical Technical Journal Pub Date : 2023-03-20 DOI: 10.31489/2023no1/27-33

V. Kubich

{"title":"YNAMIC VISCOSITY OF THE LUBRICANT AND ITS EFFECT ON STEEL MATERIALS WITH BORON","authors":"V. Kubich","doi":"10.31489/2023no1/27-33","DOIUrl":"https://doi.org/10.31489/2023no1/27-33","url":null,"abstract":"In this work, the regularities of the change in the shear strength of the adhesive bond τ0and the piezoelectric coefficient β in the metal systems \"12Kh2N4 (45KhN2MFA) -steel 45 + B\", \"12Kh2N4 (45KhN2MFA) -steel 45 + VS\" were obtained during physical modeling of the shear of surfaces of small-sized samples and changes in dynamic viscosity environment of their interaction with the use of additional equipment of the SMTs-2 friction machine. It has been established that boridingand boron carburizing of the surface of steel 45 leads to the absence of adhesion to the surfaces of steels 12Kh2N4 and 45KhN2MFA in certain ranges of normal pressures, at which τ0> 0 and the dynamic viscosity of liquid and grease. It was found that the parameter τ0when lubricating surfaces is determined to a greater extent for the system \"12X2H4 -steel 45\", and partially for borating steel 45 and low values of dynamic viscosity μ = 0.027 Pa•s. With an increase in the dynamic viscosity of the liquid phase of the lubricant in the \"12X2H4 -steel 45\" system, there is a tendency to an increase inthe value of τ0. It was found that the absence of modification of steel 45 with boron and boron carbide predetermines the independence of the piezoelectric coefficient from the viscosity of the liquid lubricant and the shear rate. Вoridingand boron carburizing steel 45 predetermines an increase in the piezoelectric coefficient by an average of 1.6 times with an increase in dynamic viscosity from 0.027 Pa•s to 0.19 Pa•s at a shear rate of 10.16±0.8. At shear rate = 5.08±0.6 mm/s, the piezoelectric coefficient is relatively constant in the systems under study. With the transition to contact through a grease lubricant, there is an ambiguous manifestation of the rate of change of the piezoelectric coefficient","PeriodicalId":11789,"journal":{"name":"Eurasian Physical Technical Journal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44736732","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