Pub Date : 1900-01-01DOI: 10.5958/2320-3218.2018.00011.8
S. Kumari, J. P. Kushwaha, Dipo Mahto
{"title":"Calculation of spin relaxation rate of iron ion","authors":"S. Kumari, J. P. Kushwaha, Dipo Mahto","doi":"10.5958/2320-3218.2018.00011.8","DOIUrl":"https://doi.org/10.5958/2320-3218.2018.00011.8","url":null,"abstract":"","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133302026","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 : 1900-01-01DOI: 10.5958/2320-3218.2018.00015.5
S. Prasad, Shamita Chatterjee
{"title":"Proton impact K-shell ionization of neon and magnesium","authors":"S. Prasad, Shamita Chatterjee","doi":"10.5958/2320-3218.2018.00015.5","DOIUrl":"https://doi.org/10.5958/2320-3218.2018.00015.5","url":null,"abstract":"","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115489326","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 : 1900-01-01DOI: 10.5958/2320-3218.2018.00012.X
A. Kumari, J. P. Kushwaha, Dipo Mahto
{"title":"Comparative study of the entropy change of spinning black holes due to mass change in XRBs and AGN","authors":"A. Kumari, J. P. Kushwaha, Dipo Mahto","doi":"10.5958/2320-3218.2018.00012.X","DOIUrl":"https://doi.org/10.5958/2320-3218.2018.00012.X","url":null,"abstract":"","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"62 23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121883574","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 : 1900-01-01DOI: 10.5958/2320-3218.2017.00019.7
K. S. Vinayak
{"title":"Review regarding discovery of Super Heavy Nuclei (SHN) and related fundamental aspects","authors":"K. S. Vinayak","doi":"10.5958/2320-3218.2017.00019.7","DOIUrl":"https://doi.org/10.5958/2320-3218.2017.00019.7","url":null,"abstract":"","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123327675","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 : 1900-01-01DOI: 10.5958/2320-3218.2021.00017.8
S. Davis
{"title":"The Quantization of a Theory of Charged Scalar Fields Simon Davis","authors":"S. Davis","doi":"10.5958/2320-3218.2021.00017.8","DOIUrl":"https://doi.org/10.5958/2320-3218.2021.00017.8","url":null,"abstract":"","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123986746","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 : 1900-01-01DOI: 10.5958/2320-3218.2020.00015.9
Aviral Srivastava
{"title":"A simplistic approach to “The Uncertainty Principle”","authors":"Aviral Srivastava","doi":"10.5958/2320-3218.2020.00015.9","DOIUrl":"https://doi.org/10.5958/2320-3218.2020.00015.9","url":null,"abstract":"","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"190 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124223465","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 : 1900-01-01DOI: 10.5958/2320-3218.2020.00030.5
Sanjeev Kumar, G. Sinha
{"title":"Spin-Orbit Coupling Through Inelastic Scattering on Intrasubband Spin Density Excitation","authors":"Sanjeev Kumar, G. Sinha","doi":"10.5958/2320-3218.2020.00030.5","DOIUrl":"https://doi.org/10.5958/2320-3218.2020.00030.5","url":null,"abstract":"","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127925399","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 : 1900-01-01DOI: 10.5958/2320-3218.2017.00017.3
P. Dalal
An attempt is made in the present work to characterize gel grown barium oxalate crystals by Thermo Electric Power (TEP) measurement. Different parameters such as Fermi energy and mode of scattering were calculated. To calculate Fermi energy and scattering parameter of a material, a graph of Seebeck coefficient(S), versus reciprocal of temperature difference (1/ΔT) is plotted. The slope of the graph is - 27.50 mV and intercept is 0.181 mV/K, and hence Fermi energy, EF = 0.028 eV. Scattering parameter has calculated 0.4. The experimental value obtained for A = 2.10 is in well agreement to conclude that the conduction of heat in the material may be due to the lattice or phonons and can be associated with lattice or phonon scattering.
{"title":"Thermo electric power measurement of barium oxalate crystals","authors":"P. Dalal","doi":"10.5958/2320-3218.2017.00017.3","DOIUrl":"https://doi.org/10.5958/2320-3218.2017.00017.3","url":null,"abstract":"An attempt is made in the present work to characterize gel grown barium oxalate crystals by Thermo Electric Power (TEP) measurement. Different parameters such as Fermi energy and mode of scattering were calculated. To calculate Fermi energy and scattering parameter of a material, a graph of Seebeck coefficient(S), versus reciprocal of temperature difference (1/ΔT) is plotted. The slope of the graph is - 27.50 mV and intercept is 0.181 mV/K, and hence Fermi energy, EF = 0.028 eV. Scattering parameter has calculated 0.4. The experimental value obtained for A = 2.10 is in well agreement to conclude that the conduction of heat in the material may be due to the lattice or phonons and can be associated with lattice or phonon scattering.","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128796377","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 : 1900-01-01DOI: 10.5958/2320-3218.2021.00007.5
Jay Shankar Kumar, Ashok Kumar
We have studied the surface wave propagation on carbon nanotube bundle and its characteristics by high attenuation. The slow wave propagation along conducting carbon nanotubes and the high conductivity compared with metallic conductors like copper made these structures for high frequency applications. The property reduced the size of antenna and passive circuits. It was found that the complex surface wave propagation has a significant attenuation coefficient at lower frequency band. This attenuation coefficient induces highly damping effect which reduces the active part of the dipole length. Thus, dipole lie always below resonance and input impedance be always capacitive. The conductivity and electromagnetic wave interaction of the conducting carbon nanotubes have also important features in comparison with traditional conductors like copper wires of the same size. The quantum capacitances of the order of the electrostatic capacitance of the transmission line. This property has two main effects on electromagnetic wave propagation along the carbon nanotube transmission line, slow wave propagation and high characteristic impedance. The wave propagation on the arms of the dipole is highly attenuated such that the active part of the dipole is such smaller than the physical length of the dipole itself. Thus, the dipole always be a short dipole and could not be resonant in any case. The result shows that the advantage of size reduction combined with surface wave propagation is used only in high frequency bands above 100 GHz. The attenuation coefficient has a moderate effect in the frequency band from 10 to 100 GHz. The resonance mechanism occurred when the incident wave at the feeding point adds constructively with reflected wave from dipole ends. The obtained results were found in good agreement with previously obtained results.
{"title":"Surface Wave Propagation on Carbon Nanotube Bundle and Characteristics by High Attenuation","authors":"Jay Shankar Kumar, Ashok Kumar","doi":"10.5958/2320-3218.2021.00007.5","DOIUrl":"https://doi.org/10.5958/2320-3218.2021.00007.5","url":null,"abstract":"We have studied the surface wave propagation on carbon nanotube bundle and its characteristics by high attenuation. The slow wave propagation along conducting carbon nanotubes and the high conductivity compared with metallic conductors like copper made these structures for high frequency applications. The property reduced the size of antenna and passive circuits. It was found that the complex surface wave propagation has a significant attenuation coefficient at lower frequency band. This attenuation coefficient induces highly damping effect which reduces the active part of the dipole length. Thus, dipole lie always below resonance and input impedance be always capacitive. The conductivity and electromagnetic wave interaction of the conducting carbon nanotubes have also important features in comparison with traditional conductors like copper wires of the same size. The quantum capacitances of the order of the electrostatic capacitance of the transmission line. This property has two main effects on electromagnetic wave propagation along the carbon nanotube transmission line, slow wave propagation and high characteristic impedance. The wave propagation on the arms of the dipole is highly attenuated such that the active part of the dipole is such smaller than the physical length of the dipole itself. Thus, the dipole always be a short dipole and could not be resonant in any case. The result shows that the advantage of size reduction combined with surface wave propagation is used only in high frequency bands above 100 GHz. The attenuation coefficient has a moderate effect in the frequency band from 10 to 100 GHz. The resonance mechanism occurred when the incident wave at the feeding point adds constructively with reflected wave from dipole ends. The obtained results were found in good agreement with previously obtained results.","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128660543","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}
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