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Modern method for determining the specific activity of natural radionuclides 测定天然放射性核素比活度的现代方法
International Journal of Mathematics and Physics Pub Date : 2023-01-01 DOI: 10.33545/26648636.2023.v5.i1a.43
S. Turabekov
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引用次数: 0
In the Scottish cafe (Polish: Kawiarnia Szkocka) house, the academic scene, a mathematician Stefan Banach and the Scottish book 在苏格兰咖啡馆(波兰语:Kawiarnia Szkocka)的房子里，学术现场，数学家斯蒂芬·巴纳赫和苏格兰书
International Journal of Mathematics and Physics Pub Date : 2023-01-01 DOI: 10.33545/26648636.2023.v5.i1a.42
Mohsin Ahmad Dar, Rajni Bhargav
{"title":"In the Scottish cafe (Polish: Kawiarnia Szkocka) house, the academic scene, a mathematician Stefan Banach and the Scottish book","authors":"Mohsin Ahmad Dar, Rajni Bhargav","doi":"10.33545/26648636.2023.v5.i1a.42","DOIUrl":"https://doi.org/10.33545/26648636.2023.v5.i1a.42","url":null,"abstract":"","PeriodicalId":40756,"journal":{"name":"International Journal of Mathematics and Physics","volume":"133 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86253582","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
Some results on undamped force vibrations of a spring using numerical methods 用数值方法研究弹簧无阻尼力振动的一些结果
International Journal of Mathematics and Physics Pub Date : 2023-01-01 DOI: 10.33545/26648636.2023.v5.i1a.45
S. Kulkarni, Pralahad Mahagaonkar
{"title":"Some results on undamped force vibrations of a spring using numerical methods","authors":"S. Kulkarni, Pralahad Mahagaonkar","doi":"10.33545/26648636.2023.v5.i1a.45","DOIUrl":"https://doi.org/10.33545/26648636.2023.v5.i1a.45","url":null,"abstract":"","PeriodicalId":40756,"journal":{"name":"International Journal of Mathematics and Physics","volume":"245 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86705472","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
An overview of theoretical investigations on interaction of drug molecule with functionalized carbon nanotubes as drug delivery system 药物分子与功能化碳纳米管相互作用的理论研究综述
International Journal of Mathematics and Physics Pub Date : 2023-01-01 DOI: 10.33545/26648636.2023.v5.i1a.44
K. M
{"title":"An overview of theoretical investigations on interaction of drug molecule with functionalized carbon nanotubes as drug delivery system","authors":"K. M","doi":"10.33545/26648636.2023.v5.i1a.44","DOIUrl":"https://doi.org/10.33545/26648636.2023.v5.i1a.44","url":null,"abstract":"","PeriodicalId":40756,"journal":{"name":"International Journal of Mathematics and Physics","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81841572","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
Radon flux density on the soil surface in the southern regions of Uzbekistan 乌兹别克斯坦南部地区土壤表面氡通量密度
International Journal of Mathematics and Physics Pub Date : 2023-01-01 DOI: 10.33545/26648636.2023.v5.i1a.47
SF Murodova, SS Turabekov
{"title":"Radon flux density on the soil surface in the southern regions of Uzbekistan","authors":"SF Murodova, SS Turabekov","doi":"10.33545/26648636.2023.v5.i1a.47","DOIUrl":"https://doi.org/10.33545/26648636.2023.v5.i1a.47","url":null,"abstract":"","PeriodicalId":40756,"journal":{"name":"International Journal of Mathematics and Physics","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90837629","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
Evaluation of gross alpha and gross beta activity levels in soil and sediment samples from different oil spill areas in Bayelsa State, Nigeria 评价尼日利亚巴耶尔萨州不同溢油地区土壤和沉积物样品中的总α和总β活性水平
International Journal of Mathematics and Physics Pub Date : 2023-01-01 DOI: 10.33545/26648636.2023.v5.i1a.54
Stella E Ovuomarie-kevin, G. Avwiri, C. Ononugbo, A. Olanrewaju
{"title":"Evaluation of gross alpha and gross beta activity levels in soil and sediment samples from different oil spill areas in Bayelsa State, Nigeria","authors":"Stella E Ovuomarie-kevin, G. Avwiri, C. Ononugbo, A. Olanrewaju","doi":"10.33545/26648636.2023.v5.i1a.54","DOIUrl":"https://doi.org/10.33545/26648636.2023.v5.i1a.54","url":null,"abstract":"","PeriodicalId":40756,"journal":{"name":"International Journal of Mathematics and Physics","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87901686","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
Chirped travelling and localized wave solutions in the cubic-quintic nonlinear Schrödinger equation with self-steepening and self-frequency shift 具有自陡变和自频移的三次五次非线性Schrödinger方程的啁啾行波解和局域波解
International Journal of Mathematics and Physics Pub Date : 2023-01-01 DOI: 10.33545/26648636.2023.v5.i2a.63
Parveen ., Sunita Dahiya, Parvesh Kumari
{"title":"Chirped travelling and localized wave solutions in the cubic-quintic nonlinear Schrödinger equation with self-steepening and self-frequency shift","authors":"Parveen ., Sunita Dahiya, Parvesh Kumari","doi":"10.33545/26648636.2023.v5.i2a.63","DOIUrl":"https://doi.org/10.33545/26648636.2023.v5.i2a.63","url":null,"abstract":"A generalized nonlinear Schrödinger equation possessing cubic-quintic nonlinear components can be used to simulate how ultra-short and femtosecond optical pulses propagate through a nonlinear medium with self-frequency shift as well as self-steepening effects. Starting with an extended auxiliary equation technique, we find an elliptic differential condition with a fifth-degree nonlinear component that depicts the development of the wave amplitude in the metamaterials (MMs) by including an intensity-dependent nonlinear chirp anstaz. As a limiting example of the Jacobi elliptic function solutions for the model under consideration and taking into account the self-frequency shift as well as self-steepening effects, we present a highly rich variety of exact chirped solutions, in particular the solitary wave solutions and periodic solutions. The related chirp is governed by the parameters for self-steepening and self-frequency shift and is proportional to the intensity of the field, according to the results of the generalized nonlinear Schrödinger equation. Parametric conditions for the presence of the traveling wave structures as well as the nonlinear chirp associated with each of these solutions are additionally introduced. PACS numbers: 42.65Tg, 05.45.Yv.","PeriodicalId":40756,"journal":{"name":"International Journal of Mathematics and Physics","volume":"2012 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":"136305990","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
Effect of different parameters on the growth of gel grown strontium iodate crystals 不同参数对凝胶生长碘酸锶晶体生长的影响
International Journal of Mathematics and Physics Pub Date : 2023-01-01 DOI: 10.33545/26648636.2023.v5.i1a.50
D. A. B. Patil
{"title":"Effect of different parameters on the growth of gel grown strontium iodate crystals","authors":"D. A. B. Patil","doi":"10.33545/26648636.2023.v5.i1a.50","DOIUrl":"https://doi.org/10.33545/26648636.2023.v5.i1a.50","url":null,"abstract":"","PeriodicalId":40756,"journal":{"name":"International Journal of Mathematics and Physics","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72467334","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
Foundations of Thermoelectronics 热电子学基础
International Journal of Mathematics and Physics Pub Date : 2023-01-01 DOI: 10.33545/26648636.2023.v5.i1a.46
S. Ordin
{"title":"Foundations of Thermoelectronics","authors":"S. Ordin","doi":"10.33545/26648636.2023.v5.i1a.46","DOIUrl":"https://doi.org/10.33545/26648636.2023.v5.i1a.46","url":null,"abstract":"","PeriodicalId":40756,"journal":{"name":"International Journal of Mathematics and 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":"83099182","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: 2
Facile synthesis, tetragonal crystal structure and tunable luminescence characteristics of synthesized phosphor for near-ultraviolet converted light emitting diodes and solid-state lighting devices 近紫外转换发光二极管和固态照明器件用合成荧光粉的易合成、四方晶体结构和可调发光特性
International Journal of Mathematics and Physics Pub Date : 2023-01-01 DOI: 10.33545/26648636.2023.v5.i2a.51
Shashank Sharma, S. K. Dubey
{"title":"Facile synthesis, tetragonal crystal structure and tunable luminescence characteristics of synthesized phosphor for near-ultraviolet converted light emitting diodes and solid-state lighting devices","authors":"Shashank Sharma, S. K. Dubey","doi":"10.33545/26648636.2023.v5.i2a.51","DOIUrl":"https://doi.org/10.33545/26648636.2023.v5.i2a.51","url":null,"abstract":"","PeriodicalId":40756,"journal":{"name":"International Journal of Mathematics and Physics","volume":"108 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87583713","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
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