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Excel spreadsheets for the study of Lissajous figures 用于研究利萨如斯数字的 Excel 电子表格
IF 2.7 4区 物理与天体物理
Romanian Reports in Physics Pub Date : 2023-12-15 DOI: 10.59277/romrepphys.2023.75.911
Adriana Radu, I. Grigore, Cristina Miron, V. Barna
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引用次数: 0
Integrating computational tools in teaching electromagnetic oscillations 在电磁振荡教学中整合计算工具
IF 2.7 4区 物理与天体物理
Romanian Reports in Physics Pub Date : 2023-12-15 DOI: 10.59277/romrepphys.2023.75.912
Anda Ciobanu, Cristina Miron, C. Berlic, V. Barna
{"title":"Integrating computational tools in teaching electromagnetic oscillations","authors":"Anda Ciobanu, Cristina Miron, C. Berlic, V. Barna","doi":"10.59277/romrepphys.2023.75.912","DOIUrl":"https://doi.org/10.59277/romrepphys.2023.75.912","url":null,"abstract":"","PeriodicalId":49588,"journal":{"name":"Romanian Reports in Physics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138999608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Indoor air quality monitoring in educational environments: a case study 教育环境中的室内空气质量监测：案例研究
IF 2.7 4区 物理与天体物理
Romanian Reports in Physics Pub Date : 2023-12-15 DOI: 10.59277/romrepphys.2023.75.706
Claudia Stihi, O. Bute
{"title":"Indoor air quality monitoring in educational environments: a case study","authors":"Claudia Stihi, O. Bute","doi":"10.59277/romrepphys.2023.75.706","DOIUrl":"https://doi.org/10.59277/romrepphys.2023.75.706","url":null,"abstract":"","PeriodicalId":49588,"journal":{"name":"Romanian Reports in Physics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138996719","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lump and multiple soliton solutions to the new integrable (3+1)-dimensional Boussinesq equation 新可积分（3+1）维布西内斯克方程的孤子和多重孤子解
IF 2.7 4区 物理与天体物理
Romanian Reports in Physics Pub Date : 2023-12-15 DOI: 10.59277/romrepphys.2023.75.121
Weaam Alhejaili, A. Wazwaz, S. El-Tantawy
{"title":"Lump and multiple soliton solutions to the new integrable (3+1)-dimensional Boussinesq equation","authors":"Weaam Alhejaili, A. Wazwaz, S. El-Tantawy","doi":"10.59277/romrepphys.2023.75.121","DOIUrl":"https://doi.org/10.59277/romrepphys.2023.75.121","url":null,"abstract":"","PeriodicalId":49588,"journal":{"name":"Romanian Reports in Physics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138998030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Numerical reconstruction of a space-dependent source term for multidimensional space-time fractional diffusion equations 多维时空分数扩散方程空间依赖源项的数值重构
IF 2.7 4区 物理与天体物理
Romanian Reports in Physics Pub Date : 2023-12-15 DOI: 10.59277/romrepphys.2023.75.120
H. OULD SIDI, M. Zaky, K. EL WALED, A. Akgul, A. Hendy
{"title":"Numerical reconstruction of a space-dependent source term for multidimensional space-time fractional diffusion equations","authors":"H. OULD SIDI, M. Zaky, K. EL WALED, A. Akgul, A. Hendy","doi":"10.59277/romrepphys.2023.75.120","DOIUrl":"https://doi.org/10.59277/romrepphys.2023.75.120","url":null,"abstract":"","PeriodicalId":49588,"journal":{"name":"Romanian Reports in Physics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138998174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the topological similarity of the functionals from the statistics of magnetic field measurements before the earthquake on November 3, 2022, in the Gura Teghii, Romania region 论 2022 年 11 月 3 日罗马尼亚古拉泰吉地区地震前磁场测量统计函数的拓扑相似性
IF 2.7 4区 物理与天体物理
Romanian Reports in Physics Pub Date : 2023-12-15 DOI: 10.59277/romrepphys.2023.75.707
A. Volvach, L. Kogan, L. Volvach, K. Kanonidi, I. Bubukin, E. Revunova
{"title":"On the topological similarity of the functionals from the statistics of magnetic field measurements before the earthquake on November 3, 2022, in the Gura Teghii, Romania region","authors":"A. Volvach, L. Kogan, L. Volvach, K. Kanonidi, I. Bubukin, E. Revunova","doi":"10.59277/romrepphys.2023.75.707","DOIUrl":"https://doi.org/10.59277/romrepphys.2023.75.707","url":null,"abstract":". The article investigates the properties of small-scale probability density fluctuations for measurements of X , Y and Z -components of the Earth's magnetic field before the earthquake that took place in November 2022 in the southern European region. A comparison is made of the properties of the statistical functional corresponding to the measurements of the magnetic field for three spatially separated magnetovariational stations located at different geographical azimuths with respect to the point of the epicenter of the indicated event. It is shown that for all stations there is a significant topological similarity of the dependences corresponding to the specified functional, considered as a function of time.","PeriodicalId":49588,"journal":{"name":"Romanian Reports in Physics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138999397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ştefan Procopiu − Pioneer of Plasma Physics in Romania Ştefan Procopiu - 罗马尼亚等离子体物理学的先驱
IF 2.7 4区 物理与天体物理
Romanian Reports in Physics Pub Date : 2023-12-15 DOI: 10.59277/romrepphys.2023.75.117
S. Popescu, G. Popa
{"title":"Ştefan Procopiu − Pioneer of Plasma Physics in Romania","authors":"S. Popescu, G. Popa","doi":"10.59277/romrepphys.2023.75.117","DOIUrl":"https://doi.org/10.59277/romrepphys.2023.75.117","url":null,"abstract":"","PeriodicalId":49588,"journal":{"name":"Romanian Reports in Physics","volume":null,"pages":null},"PeriodicalIF":2.7,"publicationDate":"2023-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139000459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Teaching biophysics I. The specific interactions: the sine qua non processes of life 生物物理学教学1 .具体的相互作用:生命过程的必要条件
4区 物理与天体物理
Romanian Reports in Physics Pub Date : 2023-09-15 DOI: 10.59277/romrepphys.2023.75.605
AUREL I. POPESCU, CLAUDIA G. CHILOM
{"title":"Teaching biophysics I. The specific interactions: the sine qua non processes of life","authors":"AUREL I. POPESCU, CLAUDIA G. CHILOM","doi":"10.59277/romrepphys.2023.75.605","DOIUrl":"https://doi.org/10.59277/romrepphys.2023.75.605","url":null,"abstract":"\" The manifestation of life, in all its aspects, is the result of an enormous number of specific biophysical and biochemical molecular interactions taking place ceaselessly into cells, in a highly ordered manner both spatially and temporally. Frequently, a product of any reaction, is not a final compound, but the initial reactant of another reaction taking place in a precise location and at right time into the intricate cellular reactions network. In this minireview, we will present, in an accessible manner, the nature and paramount importance of the specific interactions which constitute the essential basis for all life processes on the Earth\"","PeriodicalId":49588,"journal":{"name":"Romanian Reports in Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bistability effects in mechanics and its experimental demonstration 力学中的双稳效应及其实验证明
4区 物理与天体物理
Romanian Reports in Physics Pub Date : 2023-09-15 DOI: 10.59277/romrepphys.2023.75.908
VITALIE CHISTOL, DUMITRU CIOCHINA, VASILE TRONCIU
{"title":"Bistability effects in mechanics and its experimental demonstration","authors":"VITALIE CHISTOL, DUMITRU CIOCHINA, VASILE TRONCIU","doi":"10.59277/romrepphys.2023.75.908","DOIUrl":"https://doi.org/10.59277/romrepphys.2023.75.908","url":null,"abstract":"\"We report examples of obtaining the bistability effect in mechanics and the experimental demonstration of this effect. We propose to use the graphical method of solving physics problems. The method explains qualitatively the theoretical results. We investigate the influence of different parameters on bistability properties. Finally, the experiment shows a clear evidence of bistability in a mechanical system\"","PeriodicalId":49588,"journal":{"name":"Romanian Reports in Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The use of Laplace transform in the inverse problem from bound states 拉普拉斯变换在束缚态反问题中的应用
4区 物理与天体物理
Romanian Reports in Physics Pub Date : 2023-09-15 DOI: 10.59277/romrepphys.2023.75.114
R. MEZHOUD, I. AMI, R. J. LOMBARD
{"title":"The use of Laplace transform in the inverse problem from bound states","authors":"R. MEZHOUD, I. AMI, R. J. LOMBARD","doi":"10.59277/romrepphys.2023.75.114","DOIUrl":"https://doi.org/10.59277/romrepphys.2023.75.114","url":null,"abstract":"\"In a previous work dedicated to non-relativistic quantum mechanics in the three-dimensional space with spherical symmetry, we have shown the possibility of reconstructing the ground state density from its moments in the case of bound states. The method is based on relationships connecting these moments to the lower energy of each state of angular momentum `. The ground state density yields the ground state wave function, which allows us to calculate the equivalent local potential by inverting the Schrodinger equation. This calculus uses the Fourier transform of the ground state density ρ(r). The aim of this work is to check how to improve the results by replacing the Fourier transform by the Laplace transform of the quantity r2 ρ(r). The method is first presented. Then examples and results are compared to those obtained previously. \"","PeriodicalId":49588,"journal":{"name":"Romanian Reports in Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135486609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","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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