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: 10.5958/2320-3218.2016.00001.4
Ashutosh Kumar Singh, Aparajita
{"title":"Thermal Transport of Weakly Interacting Electrons in Quantum Wires","authors":"Ashutosh Kumar Singh, Aparajita","doi":"10.5958/2320-3218.2016.00001.4","DOIUrl":"https://doi.org/10.5958/2320-3218.2016.00001.4","url":null,"abstract":"","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"39 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":"129924363","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}
Pub Date : 1900-01-01DOI: 10.5958/2320-3218.2017.00010.0
Ashutosh Kumar Singh, A. Ansari, Jagriti
{"title":"Electronic Band Structure of Bulk Materials of Bismuth Antimony Nanowires","authors":"Ashutosh Kumar Singh, A. Ansari, Jagriti","doi":"10.5958/2320-3218.2017.00010.0","DOIUrl":"https://doi.org/10.5958/2320-3218.2017.00010.0","url":null,"abstract":"","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"21 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":"127684810","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: 10.5958/2320-3218.2020.00003.2
T. Kalanov
{"title":"Unsolved problem in classical mechanics","authors":"T. Kalanov","doi":"10.5958/2320-3218.2020.00003.2","DOIUrl":"https://doi.org/10.5958/2320-3218.2020.00003.2","url":null,"abstract":"","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"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":"126664898","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: 10.5958/2320-3218.2015.00006.8
A. Niranjana, R. Somashekar
Thermal effect in the form of micro wave energy on Bt and non Bt cotton fibers have been investigated. Microstructural parameters in these irradiated cotton samples have been estimated using wide angle x-ray scattering (WAXS) data. For this purpose, we have employed an in-house line profile analysis program developed by us. Other physical properties like tensile strength of exposed cotton fiber are correlated with X-ray results. We observe that the microwave radiation do affect significantly many parameters and we have suggested a multivariate analysis of these parameters to arrive at a significant result.
{"title":"Effect of microwave radiation on Bt cotton and non BT cotton fibers: waxs studies","authors":"A. Niranjana, R. Somashekar","doi":"10.5958/2320-3218.2015.00006.8","DOIUrl":"https://doi.org/10.5958/2320-3218.2015.00006.8","url":null,"abstract":"Thermal effect in the form of micro wave energy on Bt and non Bt cotton fibers have been investigated. Microstructural parameters in these irradiated cotton samples have been estimated using wide angle x-ray scattering (WAXS) data. For this purpose, we have employed an in-house line profile analysis program developed by us. Other physical properties like tensile strength of exposed cotton fiber are correlated with X-ray results. We observe that the microwave radiation do affect significantly many parameters and we have suggested a multivariate analysis of these parameters to arrive at a significant result.","PeriodicalId":445078,"journal":{"name":"Bulletin of Pure & Applied Sciences- Physics","volume":"24 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":"126783797","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: 10.5958/2320-3218.2021.00004.x
K. Roy, N. Ghosh
{"title":"High-Tc Superconductivity within t - t'- J - J' Model","authors":"K. Roy, N. Ghosh","doi":"10.5958/2320-3218.2021.00004.x","DOIUrl":"https://doi.org/10.5958/2320-3218.2021.00004.x","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":"131222489","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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