Eurasian Journal of Science Engineering and Technology最新文献

INSIGHT INTO ANTI-CORROSION EFFECT OF MAMILLARIA PROLIFERA FRUIT EXTRACT AS A GREEN INHBITOR FOR MILD STEEL IN HCl SOLUTION 盐酸溶液中作为锰钢绿色吸附剂的罂粟果实提取物的抗腐蚀作用透视

Eurasian Journal of Science Engineering and Technology Pub Date : 2023-12-06 DOI: 10.55696/ejset.1387199

D. Özkır

引用次数: 0

THE EXOGAM2 CALIBRATION USING THE NEWLY DEVELOPED NUMEXO2 DIGITAL ELECTRONIC 使用新开发的 numexo2 数字电子设备对 exogam2 进行校准。

Eurasian Journal of Science Engineering and Technology Pub Date : 2023-11-20 DOI: 10.55696/ejset.1312972

Elif Şahi̇n, Sefa Ertürk, Vakkas Bozkurt

引用次数: 0

THE MODIFIED OHM’S LAW AND ITS IMPLICATIONS FOR ELECTRICAL CIRCUIT ANALYSIS 修正欧姆定律及其对电路分析的影响

Eurasian Journal of Science Engineering and Technology Pub Date : 2023-11-10 DOI: 10.55696/ejset.1373552

Alex Kimuya

{"title":"THE MODIFIED OHM’S LAW AND ITS IMPLICATIONS FOR ELECTRICAL CIRCUIT ANALYSIS","authors":"Alex Kimuya","doi":"10.55696/ejset.1373552","DOIUrl":"https://doi.org/10.55696/ejset.1373552","url":null,"abstract":"Ohm’s Law has long been a cornerstone of electrical engineering, providing a linear relationship between voltage, current, and resistance that has underpinned modern circuit analysis. However, as technology advances and philosophical inquiries deepen, the limitations of this venerable law have become evident, particularly in scenarios involving near-zero resistance. This paper introduces a novel formulation-the modified Ohm’s Law; that not only rectifies the pitfalls of the conventional law but also harmonizes physics with philosophical principles. Motivated by the paradoxical projection of infinite current at zero resistance and the philosophical implications of deriving infinity from the finite, the modified equation emerges as a bridge between empirical insights and logical coherence. Through a rigorous mathematical derivation, theoretical examination, and computational analysis, we demonstrate the accuracy and applicability of the modified Ohm’s Law across diverse scenarios, ranging from semiconductor devices to high-current applications. In reconciling scientific rigor with philosophical consistency, this paper advances our understanding of electrical circuitry and beckons a new era of precision in analysis. Further, the modified Ohm’s Law paves the way for deeper explorations that resonate through the realms of physics and philosophy, reshaping the landscape of our understanding.","PeriodicalId":143980,"journal":{"name":"Eurasian Journal of Science Engineering and Technology","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139281680","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

A Newly Recorded Genus for Turkish Spider Fauna (Araneae: Hahniidae) 土耳其蜘蛛动物群新记录的一个属（Araneae: Hahniidae)

Eurasian Journal of Science Engineering and Technology Pub Date : 2023-09-07 DOI: 10.55696/ejset.1332180

O. Seyyar, Tuncay Türkeş, H. Demi̇r

引用次数: 0

Exploring Efficiency and Design Optimization of Flexible Perovskite Solar Cells using SCAPS-1D Simulation 利用 SCAPS-1D 仿真探索柔性 Perovskite 太阳能电池的效率和设计优化

Eurasian Journal of Science Engineering and Technology Pub Date : 2023-06-16 DOI: 10.55696/ejset.1303146

Elif Damgaci, Emre Kartal, Ayşe Seyhan

引用次数: 0

LARGE-SCALE SYNTHESIS OF HOMOGENEOUS WS2 FILMS BY PHYSICAL VAPOR DEPOSITION 物理气相沉积法大规模合成均匀ws2薄膜

Eurasian Journal of Science Engineering and Technology Pub Date : 2023-06-15 DOI: 10.55696/ejset.1301601

A. Altuntepe, S. Erkan, Güldöne Karadeni̇z

{"title":"LARGE-SCALE SYNTHESIS OF HOMOGENEOUS WS2 FILMS BY PHYSICAL VAPOR DEPOSITION","authors":"A. Altuntepe, S. Erkan, Güldöne Karadeni̇z","doi":"10.55696/ejset.1301601","DOIUrl":"https://doi.org/10.55696/ejset.1301601","url":null,"abstract":"TMDs are semiconductors, unlike graphene, and have a direct bandgap when converted from bulk to thin film. This property makes TMDs an ideal material for optoelectronic and photovoltaic applications due to their strong optical absorption and photoluminescence effect. The WS2, a popular TMD, has unique properties such as low friction coefficient, high thermal stability, and good electrical conductivity, and a bandgap energy of approximately 1.2 eV and 2.2 eV for indirect and direct behaviors. The article also discusses various methods for synthesizing WS2, including chemical vapor deposition (CVD), physical vapor deposition (PVD), hydrothermal synthesis, and solvothermal synthesis. PVD is a scalable method for producing large-area films and coatings with high quality, but the difficulty of controlling the sulfur or selenium sources in this method leads to the need for optimizing growth parameters for large-scale and high-quality WS2 film synthesis. The study reports the successful growth of large-scale and homogeneous WS2 films on a glass substrate using PVD and optimized substrate temperature. The results of this study provide valuable information for the advancement of WS2 film growth techniques and the development of WS2-based semiconductor technologies, such as transistors, diodes, photodetectors, and solar cells.","PeriodicalId":143980,"journal":{"name":"Eurasian Journal of Science Engineering and Technology","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114126772","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

INVESTIGATION OF STRUCTURAL, OPTICAL, AND ELECTRICAL PROPERTIES OF ITO FILMS DEPOSITED AT DIFFERENT PLASMA POWERS: ENHANCED PERFORMANCE AND EFFICIENCY IN SHJ SOLAR CELLS 在不同等离子体功率下沉积的ITO薄膜的结构、光学和电学性质的研究:在SHJ太阳能电池中增强的性能和效率

Eurasian Journal of Science Engineering and Technology Pub Date : 2023-06-15 DOI: 10.55696/ejset.1297942

Emre Kartal, İlker Duran, E. Damgaci, A. Seyhan

引用次数: 1

TREATMENT OF TEXTILE WASTEWATER WITH CHERRY LAUREL LEAVES AND WASTE POTATO PEELS 用樱桃月桂叶和废马铃薯皮处理纺织废水

Eurasian Journal of Science Engineering and Technology Pub Date : 2023-06-15 DOI: 10.55696/ejset.1296953

Şennur Merve Yakut

{"title":"TREATMENT OF TEXTILE WASTEWATER WITH CHERRY LAUREL LEAVES AND WASTE POTATO PEELS","authors":"Şennur Merve Yakut","doi":"10.55696/ejset.1296953","DOIUrl":"https://doi.org/10.55696/ejset.1296953","url":null,"abstract":"In this study, a research was carried out on the removal of dyestuff, which is a big problem in the textile industry. The adsorption method was used for the removal of Maxilon Yellow 4GL dyestuff. Cherry laurel leaf (Prunus laurocerasus) and waste potato peels were used as adsorbent, and the removal efficiency was determined as 76.64% at pH 7 and with 2 g adsorbent, 80% dyestuff removal efficiency was achieved in the specified conditions for cherry laurel leaves. For experiments in which waste potato peels were used as adsorbent, the optimum conditions were found as follows: Contact time: 60 minutes, adsorbent concentration of 0.75 grams and initial concentration of 25 mg/L. The Freundlich isotherm model was suitable for our study, since the regression number was found to be 0.999 for cherry laurel leaves and 0.995 for waste potato peels as a result of isotherm studies. According to the cost analysis, the materials supplied free of charge, due to mixing, the electricity cost for treatment (0.128 TL) and the chemical material cost is 17 TL, and it has been determined that these adsorbents are quite economical in dyestuff treatment. As a result, the fact that there is no study on the removal of cherry laurel leaves with the mentioned dyestuff in the literature shows that this study can be further developed.","PeriodicalId":143980,"journal":{"name":"Eurasian Journal of Science Engineering and Technology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132795974","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

ALTERNATIVE NUMERICAL SIMULATION APPROACH FOR OBTAINING FLC/FLD 获取flc / field的另一种数值模拟方法

Eurasian Journal of Science Engineering and Technology Pub Date : 2023-06-15 DOI: 10.55696/ejset.1212311

S. Di̇kmenli̇

{"title":"ALTERNATIVE NUMERICAL SIMULATION APPROACH FOR OBTAINING FLC/FLD","authors":"S. Di̇kmenli̇","doi":"10.55696/ejset.1212311","DOIUrl":"https://doi.org/10.55696/ejset.1212311","url":null,"abstract":"To be able to predict the forming behavior of sheet metal parts by simulation, it is necessary to determine the FLD1 (Forming Limit Diagram) curves of the sheet material that is subjected to bending, hemming, deep drawing, progressive forming, embossing, hydro-forming processes. To determine such curves, the usual practice is to carry out a series of experiments that need to be repeated many times, and therefore it takes a long time to finalize them [1], [2], [3], [4], [5], [6]. Not to mention undertaken experiments are very detailed and need tedious and careful work has to be done such as screen printing on the material and doing simultaneous optical measurements during the experiments. Indeed, a fully equipped laboratory and qualified lab personnel are required for such experiments which may not be easily found. When it's found, there is usually six months to a year, queue to conduct such experiments. \u0000Because of these difficulties, many academic institutions and manufacturing sites develop their in-house test equipment if funding is available. If not, it is dependent on research whether it comes to an end or whether it can continue without it. \u0000An alternative method developed for extracting FLD/FLC curves is using today’s state-of-the-art simulation technology. This method requires two main inputs; \u0000a) Tensile test of the material \u0000b) An explicit solver \u0000The scope of this paper is to detail this method such that the findings in this document can be reproduced when the mentioned requirements are satisfied. Therefore, all data used in charts, a high-resolution image, and a sample Abaqus input file are provided as supplemental data [7]. \u0000The results from the simulations of FLD/FLC were compared to published literature [13] [14] to confirm their compliance with experiments. The comparison showed good results and demonstrates that expensive and time-consuming FLD/FLC experiments are not necessary when the mentioned requirements are met.","PeriodicalId":143980,"journal":{"name":"Eurasian Journal of Science Engineering and Technology","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132233858","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 HEATING RATE ON THE STRUCTURAL AND OPTICAL PROPERTIES OF SILVER AND GERMANIUM CO-DOPED CZTS THIN FILM 加热速率对银锗共掺杂CZTS薄膜结构和光学性能的影响

Eurasian Journal of Science Engineering and Technology Pub Date : 2023-06-15 DOI: 10.55696/ejset.1295349

Y. Atasoy, A. Çiriş, M. A. Olgar

{"title":"INFLUENCE OF HEATING RATE ON THE STRUCTURAL AND OPTICAL PROPERTIES OF SILVER AND GERMANIUM CO-DOPED CZTS THIN FILM","authors":"Y. Atasoy, A. Çiriş, M. A. Olgar","doi":"10.55696/ejset.1295349","DOIUrl":"https://doi.org/10.55696/ejset.1295349","url":null,"abstract":"The effect of heating rate on the structural and optical properties of Ag+Ge co-doped CZTS thin film were investigated and compared with the undoped CZTS sample. The undoped and Ag+Ge co-doped CZTS samples obtained by two-stage technique consisting of the sequential deposition of the precursor stacks by sputtering systemand sulfurization of these layers at elevated temperature in the RTP system by employing heating rate of 1°C/s, 2°C/s and 3°C/s. Ag and Ge co-doped precursor stack as well as undoped stack demonstrated Cu-poor, Zn-rich composition. In addition, the dopant ratio of the Ag+Ge co-doped stack was close to the targeted content considering to EDS measurement. Regardless of the employed heating rate or the doping process, all of the samples crystallized in a kesterite structure. However, it was confirmed by XRD measurements that high heating rates caused phase separation in kesterite phase formation. On the other hand, The Raman peaks assigned to Cu-vacancy and CuZn antisite defects formation inhibited with incorporating Ag and Ge into the CZTS structure. Ag and Ge co-doped CZTS sample produced with a heating ramp rate of 1°C/s showed better structural and optical results among them.","PeriodicalId":143980,"journal":{"name":"Eurasian Journal of Science Engineering and Technology","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132690950","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