Pub Date : 2023-01-01DOI: 10.21272/jnep.15(4).04035
B. V. Efremenko, Yu. G. Chabak, E. V. Tsvetkova, A. V. Dzherenova, V. G. Efremenko, F. Kromka, V. I. Zurnadzhy, I. M. Olejnik
.
{"title":"Surface Laser Melting of a Carburized LPBF-manufactured Ti-based Biomedical Grade Alloy","authors":"B. V. Efremenko, Yu. G. Chabak, E. V. Tsvetkova, A. V. Dzherenova, V. G. Efremenko, F. Kromka, V. I. Zurnadzhy, I. M. Olejnik","doi":"10.21272/jnep.15(4).04035","DOIUrl":"https://doi.org/10.21272/jnep.15(4).04035","url":null,"abstract":".","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135699113","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}
The selection of a suitable small hydropower project and its criteria for investment is a crucial task involving various aspects and plans. This decision-making can also be seen as a multi-criteria review issue with the correlation of criteria and alternatives. This role should take into account a number of competing aspects due to the growing complexities of social, economic, technical and environmental factors. Traditional decision-making methods cannot address the complexities of such systems. Multi-criteria approaches have more and more versatile tools. The goal of this paper is to assess the applicability of Multiple Criteria Decision-Making (MCDM) based Proximity Index Value (PIV) and Combined Compromise Solution (CoCoSo) technique during the planning and development of small hydropower projects. The application of this PIV novel approach to a small hydropower project organization and expansion scenario is lacking in renewable energy literature due to the difficulty of its evaluation.
{"title":"Selection of Ideal IoT Based Overhead Conductor for Optimizing the Performance of a Small Hydropower Project","authors":"Nameet Kumar Sethy, Manideep Yenugula, Shankha Shubhra Goswami, Amrita Bhola, Dhiren Kumar Behera","doi":"10.21272/jnep.15(4).04006","DOIUrl":"https://doi.org/10.21272/jnep.15(4).04006","url":null,"abstract":"The selection of a suitable small hydropower project and its criteria for investment is a crucial task involving various aspects and plans. This decision-making can also be seen as a multi-criteria review issue with the correlation of criteria and alternatives. This role should take into account a number of competing aspects due to the growing complexities of social, economic, technical and environmental factors. Traditional decision-making methods cannot address the complexities of such systems. Multi-criteria approaches have more and more versatile tools. The goal of this paper is to assess the applicability of Multiple Criteria Decision-Making (MCDM) based Proximity Index Value (PIV) and Combined Compromise Solution (CoCoSo) technique during the planning and development of small hydropower projects. The application of this PIV novel approach to a small hydropower project organization and expansion scenario is lacking in renewable energy literature due to the difficulty of its evaluation.","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135699628","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 : 2023-01-01DOI: 10.21272/jnep.15(4).04002
I. I. Bondar, V. V. Suran, O. Y. Minya, O. K. Shuaibov, І. V. Shevera, A. O. Malinina, V. N. Krasilinets
A methodology, technique, and research results for the synthesis of films on a glass surface upon irradiation of aqueous solutions of copper sulfate with laser radiation are presented. The studies used the radiation of a yttrium-aluminum garnet laser, its second harmonic and the radiation of a semiconductor laser. Solutions with different concentrations of copper sulfate were used. The structure and and characteristics of the control films obtained as a result of drying solutions without exposure to laser radiation. Films synthesized under the action of laser optical characteristics of the films obtained in this case are compared with the structure radiation have both ordered and disordered structures. The characteristic dimensions of the structural elements of these films are 0.5-2 microns. For solutions with low concentrations, the density of the coating of glass substrates with films obtained under the action of laser radiation is much higher than the density of the coating with control films. The transmissions of the films were studied in the spectral range 300-1200 nm. It was found that the transmission of films obtained under the action of laser radiation and control films differ
{"title":"Synthesis of Surface Structures at Laser-Stimulated Evaporation of a Copper Sulfate Solution in Distilled Water","authors":"I. I. Bondar, V. V. Suran, O. Y. Minya, O. K. Shuaibov, І. V. Shevera, A. O. Malinina, V. N. Krasilinets","doi":"10.21272/jnep.15(4).04002","DOIUrl":"https://doi.org/10.21272/jnep.15(4).04002","url":null,"abstract":"A methodology, technique, and research results for the synthesis of films on a glass surface upon irradiation of aqueous solutions of copper sulfate with laser radiation are presented. The studies used the radiation of a yttrium-aluminum garnet laser, its second harmonic and the radiation of a semiconductor laser. Solutions with different concentrations of copper sulfate were used. The structure and and characteristics of the control films obtained as a result of drying solutions without exposure to laser radiation. Films synthesized under the action of laser optical characteristics of the films obtained in this case are compared with the structure radiation have both ordered and disordered structures. The characteristic dimensions of the structural elements of these films are 0.5-2 microns. For solutions with low concentrations, the density of the coating of glass substrates with films obtained under the action of laser radiation is much higher than the density of the coating with control films. The transmissions of the films were studied in the spectral range 300-1200 nm. It was found that the transmission of films obtained under the action of laser radiation and control films differ","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135700885","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 : 2023-01-01DOI: 10.21272/jnep.15(4).04029
Varsha Maheshwari, Laxmi Poonia
Our goal in the current paper is to develop Bianchi Type V space time undertaken in framework of massless scalar field with flat potential. Model produces an inflationary universe scenario provided bulk viscosity is present. The Bianchi Type V cosmological model is a homogeneous and anisotropic solution of the Einstein field equations, which describes the evolution of the universe. In this model, the geometry of the universe is characterized by three mutually orthogonal spatial directions, and the time evolution is determined by the matter content of the universe an appropriate transformation is used to solve the Einstein field equations. In order to develop a physical universe model we consider ξθ (constant) and we have assumed a supplementary condition BC and B / C v between metric potential. We investigate the geometrical and physical aspects of the model with in presence of bulk viscosity. The model isotropies under specific conditions and the increase in spatial volume over time describe the inflationary phase of the universe. The model in general represents anisotropic space-time but isotropies at late time. The Hubble parameter decreases with time. At time T = 0, the model possesses a Point Type singularity.
{"title":"Bianchi Type V Inflationary Cosmological Model with Bulk Viscosity in General Relativity","authors":"Varsha Maheshwari, Laxmi Poonia","doi":"10.21272/jnep.15(4).04029","DOIUrl":"https://doi.org/10.21272/jnep.15(4).04029","url":null,"abstract":"Our goal in the current paper is to develop Bianchi Type V space time undertaken in framework of massless scalar field with flat potential. Model produces an inflationary universe scenario provided bulk viscosity is present. The Bianchi Type V cosmological model is a homogeneous and anisotropic solution of the Einstein field equations, which describes the evolution of the universe. In this model, the geometry of the universe is characterized by three mutually orthogonal spatial directions, and the time evolution is determined by the matter content of the universe an appropriate transformation is used to solve the Einstein field equations. In order to develop a physical universe model we consider ξθ (constant) and we have assumed a supplementary condition BC and B / C v between metric potential. We investigate the geometrical and physical aspects of the model with in presence of bulk viscosity. The model isotropies under specific conditions and the increase in spatial volume over time describe the inflationary phase of the universe. The model in general represents anisotropic space-time but isotropies at late time. The Hubble parameter decreases with time. At time T = 0, the model possesses a Point Type singularity.","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135700996","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 : 2023-01-01DOI: 10.21272/jnep.15(3).03007
Nitasha Bisht, P. Malik, Sudipta Das
The paper is a comparative analysis of coaxial feed and microstrip line feed for a slotted circular patch microstrip antenna. When various feeding techniques are used to increase impedance matching, the performance of several characteristic parameters, such as voltage standing wave ratio, radiation pattern, gain etc. are impacted. To determine the extent to which these variables are affected, a comparison study is conducted, and the results are provided in this work. With the help of High Frequency Structure Simulator (HFSS) 3D electromagnetic software the antenna is devised and simulated. The intended coaxial feed antenna resonates at 7.5 GHz, 12.5 GHz, and 15 GHz, with bandwidths of 1800, 720, and 360 MHz, respectively, and 5.63 dB as a peak gain. In contrast, the proposed micro-strip feed antenna resonates at 3.5, 7, 12.8, 15, 17.5 GHz with a bandwidth of 180, 450, 90, 1170, 2250 MHz and a peak gain of 6.57 dB. In terms of gain, bandwidth, and multiband characteristics, microstrip line feed has been shown to outperform coaxial probe feed. The antenna designed with dimension of 33.56 33.56 mm 2 . The substrate used for the designing of circular patch microstrip antenna is FR4. The novel features of the designed antenna include its multiband properties and increased bandwidth. The proposed antenna can be utilized efficiently in X, Ku and lower 5G band.
{"title":"Feeding Methods for a Circular Shaped Multiband Patch Antenna at 5G, X and Ku Band to Quantify their Effects on Antenna Characteristics","authors":"Nitasha Bisht, P. Malik, Sudipta Das","doi":"10.21272/jnep.15(3).03007","DOIUrl":"https://doi.org/10.21272/jnep.15(3).03007","url":null,"abstract":"The paper is a comparative analysis of coaxial feed and microstrip line feed for a slotted circular patch microstrip antenna. When various feeding techniques are used to increase impedance matching, the performance of several characteristic parameters, such as voltage standing wave ratio, radiation pattern, gain etc. are impacted. To determine the extent to which these variables are affected, a comparison study is conducted, and the results are provided in this work. With the help of High Frequency Structure Simulator (HFSS) 3D electromagnetic software the antenna is devised and simulated. The intended coaxial feed antenna resonates at 7.5 GHz, 12.5 GHz, and 15 GHz, with bandwidths of 1800, 720, and 360 MHz, respectively, and 5.63 dB as a peak gain. In contrast, the proposed micro-strip feed antenna resonates at 3.5, 7, 12.8, 15, 17.5 GHz with a bandwidth of 180, 450, 90, 1170, 2250 MHz and a peak gain of 6.57 dB. In terms of gain, bandwidth, and multiband characteristics, microstrip line feed has been shown to outperform coaxial probe feed. The antenna designed with dimension of 33.56 33.56 mm 2 . The substrate used for the designing of circular patch microstrip antenna is FR4. The novel features of the designed antenna include its multiband properties and increased bandwidth. The proposed antenna can be utilized efficiently in X, Ku and lower 5G band.","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68045897","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 : 2023-01-01DOI: 10.21272/jnep.15(3).03035
L. Sukhodub, M. Kumeda, L. Sukhodub
The mini-review examines the current state of the problem of peripheral nerve (PN) regeneration, including details of the internal structure of PN, types of their damage, biochemical aspects, in particular the function of Schwann cells, macrophages, intermolecular interactions of cell membrane receptors with extra-cellular matrix proteins, which are involved in the peripheral nerve regeneration process. The development of artificial nerve tubes (conduits) to suture the distal and proximal ends of the damaged nerve with an artificial conduit is the main strategy for PN recovery. Emphasis is placed on the use of leading biomaterials of the new generation, in particular, based on natural polysaccharides (alginate - Alg and chitosan - CS) and carbon nanoparticles CNP (single and multi wall carbon nanotubes – SWCNTs/MWCNTs, graphene - G, graphene oxide - GO or fullerene - C 60 ) obtained in the Sumy
{"title":"Biodegradable Conductive Nerve Conduits Based on Carbon Apatite-Biopolymer Biomaterials: Synthesis and Properties","authors":"L. Sukhodub, M. Kumeda, L. Sukhodub","doi":"10.21272/jnep.15(3).03035","DOIUrl":"https://doi.org/10.21272/jnep.15(3).03035","url":null,"abstract":"The mini-review examines the current state of the problem of peripheral nerve (PN) regeneration, including details of the internal structure of PN, types of their damage, biochemical aspects, in particular the function of Schwann cells, macrophages, intermolecular interactions of cell membrane receptors with extra-cellular matrix proteins, which are involved in the peripheral nerve regeneration process. The development of artificial nerve tubes (conduits) to suture the distal and proximal ends of the damaged nerve with an artificial conduit is the main strategy for PN recovery. Emphasis is placed on the use of leading biomaterials of the new generation, in particular, based on natural polysaccharides (alginate - Alg and chitosan - CS) and carbon nanoparticles CNP (single and multi wall carbon nanotubes – SWCNTs/MWCNTs, graphene - G, graphene oxide - GO or fullerene - C 60 ) obtained in the Sumy","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68046452","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 : 2023-01-01DOI: 10.21272/jnep.15(2).02003
J. Singh, G. Joshi
{"title":"Synthesis and Characterization of Few-Layer Reduced Graphene Oxide Nanosheet by Modified Hummer's Method","authors":"J. Singh, G. Joshi","doi":"10.21272/jnep.15(2).02003","DOIUrl":"https://doi.org/10.21272/jnep.15(2).02003","url":null,"abstract":"","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68044598","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 : 2023-01-01DOI: 10.21272/jnep.15(2).02008
Yu. S. Kurskoy, O. Hnatenko
{"title":"Precision Chaotic Laser Generation","authors":"Yu. S. Kurskoy, O. Hnatenko","doi":"10.21272/jnep.15(2).02008","DOIUrl":"https://doi.org/10.21272/jnep.15(2).02008","url":null,"abstract":"","PeriodicalId":16654,"journal":{"name":"Journal of Nano-and electronic Physics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68044714","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：