Abstract: The solar eclipses at Udaipur (270 43’ 12.00”N, 750 28’ 48.01”E), India were experimentally observed on January 4, 2011 and December 26, 2019 using a ground-based NaI (Tl) scintillation detector. For the solar eclipse on January 4, 2011, the data files were stored in a computer for a thirty-minute duration from 14.30 IST to 15.00 IST on pre-eclipse normal days as well as on post-eclipse normal days and also on partial eclipse day (January 4, 2011). For solar eclipse on December 26, 2019, cadences of data were collected for three hours from 8 AM to 11 AM on pre-eclipse normal days as well as on post-eclipse normal days and also on eclipse day (December 26, 2019). The analyzed data revealed significant decrement of secondary gamma radiation flux (SGR) on solar eclipse day (January 4, 2011) of about 10 % and on solar eclipse day (December 26, 2019) of about 17 % in the counts of SGR flux on comparison to average counts of normal days. We interpret such decrement of SGR flux on the basis of obstruction effect produced by the Moon during solar eclipses. Keywords: Solar eclipse, Cosmic radiation, Solar radiation, Secondary gamma radiation, Obstruction effect by the Moon.
{"title":"Decrement of Secondary Gamma Radiation Flux during Solar Eclipses on January 4, 2011 and December 26, 2019 at Udaipur, India","authors":"","doi":"10.47011/15.2.10","DOIUrl":"https://doi.org/10.47011/15.2.10","url":null,"abstract":"Abstract: The solar eclipses at Udaipur (270 43’ 12.00”N, 750 28’ 48.01”E), India were experimentally observed on January 4, 2011 and December 26, 2019 using a ground-based NaI (Tl) scintillation detector. For the solar eclipse on January 4, 2011, the data files were stored in a computer for a thirty-minute duration from 14.30 IST to 15.00 IST on pre-eclipse normal days as well as on post-eclipse normal days and also on partial eclipse day (January 4, 2011). For solar eclipse on December 26, 2019, cadences of data were collected for three hours from 8 AM to 11 AM on pre-eclipse normal days as well as on post-eclipse normal days and also on eclipse day (December 26, 2019). The analyzed data revealed significant decrement of secondary gamma radiation flux (SGR) on solar eclipse day (January 4, 2011) of about 10 % and on solar eclipse day (December 26, 2019) of about 17 % in the counts of SGR flux on comparison to average counts of normal days. We interpret such decrement of SGR flux on the basis of obstruction effect produced by the Moon during solar eclipses.\u0000Keywords: Solar eclipse, Cosmic radiation, Solar radiation, Secondary gamma radiation, Obstruction effect by the Moon.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49233305","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}
Abstract: The lunar eclipse at Udaipur (270 43’ 12.00” N, 750 28’ 48.01” E), India was experimentally observed on June 16, 2011 using ground-based NaI (Tl) scintillation detector. Cadences of data were collected at intervals of half an hour. The analyzed data revealed a significant enhancement in the energy region from 1400 keV to 1500 keV of secondary gamma radiation flux (SGRF) on comparison to pre- and after lunar eclipse days. On June 16, we observed additional peaks in the energy spectrum of SGR flux in the energy region extending from 1461.010 keV to 1472.536 keV during the progress of lunar eclipse. We interpret such enhancement of SGR flux energies on the basis of combined phenomenon of gravitational lensing effect of Sun and Earth as well as the Sun’s magnetic field and the interplanetary magnetic field. Due to such combined effect, primary cosmic and solar radiations bend and may cause strong hitting on the less air surface of the Moon, resulting into emission of secondary particle flux mostly gamma radiation, high energy photo electrons, hard X -radiation, muons, protons and neutrons which may be regarded as back scattering from the Moon surface. Energy of backscattered secondary flux is large enough that it gives such enhancement in the energy region from 1400 keV to 1500 keV during lunar eclipse observation. Also, due to combined gravitational effect, cosmic radiation bent and impinged deep inside the atmosphere of Earth, producing a large shower of secondary radiation particles. These collective effects may give such enhancement of secondary gamma radiation flux energies. Keywords: Lunar eclipse, Solar magnetic field, Interplanetary magnetic field, Gravitational lensing, Bending of primary cosmic and solar radiations.
{"title":"Enhancement of Secondary Gamma Radiation Flux Energies in the Energy Region from 1400 Kev to 1500 Kev during Lunar Eclipse on June 16, 2011 at Udaipur, India","authors":"","doi":"10.47011/15.2.3","DOIUrl":"https://doi.org/10.47011/15.2.3","url":null,"abstract":"Abstract: The lunar eclipse at Udaipur (270 43’ 12.00” N, 750 28’ 48.01” E), India was experimentally observed on June 16, 2011 using ground-based NaI (Tl) scintillation detector. Cadences of data were collected at intervals of half an hour. The analyzed data revealed a significant enhancement in the energy region from 1400 keV to 1500 keV of secondary gamma radiation flux (SGRF) on comparison to pre- and after lunar eclipse days. On June 16, we observed additional peaks in the energy spectrum of SGR flux in the energy region extending from 1461.010 keV to 1472.536 keV during the progress of lunar eclipse. We interpret such enhancement of SGR flux energies on the basis of combined phenomenon of gravitational lensing effect of Sun and Earth as well as the Sun’s magnetic field and the interplanetary magnetic field. Due to such combined effect, primary cosmic and solar radiations bend and may cause strong hitting on the less air surface of the Moon, resulting into emission of secondary particle flux mostly gamma radiation, high energy photo electrons, hard X -radiation, muons, protons and neutrons which may be regarded as back scattering from the Moon surface. Energy of backscattered secondary flux is large enough that it gives such enhancement in the energy region from 1400 keV to 1500 keV during lunar eclipse observation. Also, due to combined gravitational effect, cosmic radiation bent and impinged deep inside the atmosphere of Earth, producing a large shower of secondary radiation particles. These collective effects may give such enhancement of secondary gamma radiation flux energies.\u0000Keywords: Lunar eclipse, Solar magnetic field, Interplanetary magnetic field, Gravitational lensing, Bending of primary cosmic and solar radiations.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48270221","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}
Abstract: In this work, we are investigating the electronic and magnetic properties of the new NiCrGa half-Heusler alloy (HHA), by using the ab-initio and Monte Carlo simulations (MCSs). The ab-initio method is performed under the pseudo-potential method and the generalized gradient approximation GGA. The density of states (DOS) and the band structure calculations show that the alloy NiCrGa reveals a nearly half-metallic (HM) behavior. In particular, the Slater-Pauling (SP) rule has been confirmed when using the magnetic moments of the individual constituents of the NiCrGa compound. The Monte Carlo simulations (MCSs) are accomplished using the Metropolis algorithm. In order to determine the transition temperature, we are based on the behavior of the total magnetization and susceptibility of this material. We also presented and discussed the hysteresis loops of the half-Heusler compound, for fixed values of temperature, exchange coupling interactions and crystal field. It is found that when increasing the crystal field, the surface of the loops increases and vice versa. Keywords: Half-Heusler alloy, NiCrGa, Slater pauling, DFT method, Monte Carlo study.
{"title":"Ab-initio and Monte Carlo Simulations of the New Half-Heusler Alloy NiCrGa","authors":"","doi":"10.47011/15.2.1","DOIUrl":"https://doi.org/10.47011/15.2.1","url":null,"abstract":"Abstract: In this work, we are investigating the electronic and magnetic properties of the new NiCrGa half-Heusler alloy (HHA), by using the ab-initio and Monte Carlo simulations (MCSs). The ab-initio method is performed under the pseudo-potential method and the generalized gradient approximation GGA. The density of states (DOS) and the band structure calculations show that the alloy NiCrGa reveals a nearly half-metallic (HM) behavior. In particular, the Slater-Pauling (SP) rule has been confirmed when using the magnetic moments of the individual constituents of the NiCrGa compound. The Monte Carlo simulations (MCSs) are accomplished using the Metropolis algorithm. In order to determine the transition temperature, we are based on the behavior of the total magnetization and susceptibility of this material. We also presented and discussed the hysteresis loops of the half-Heusler compound, for fixed values of temperature, exchange coupling interactions and crystal field. It is found that when increasing the crystal field, the surface of the loops increases and vice versa.\u0000Keywords: Half-Heusler alloy, NiCrGa, Slater pauling, DFT method, Monte Carlo study.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42621993","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}
Abstract: Far away objects seem to appear smaller than the original size. There is confusion about the concept of the perceived size of objects based on distance. In this work, new mathematical formulae are given for the apparent size of objects in both isoscele view and scalene view in terms of absolute distance. The new formulae for the temperature of black bodies and the true diameter of luminous objects are obtained from the apparent size relations. The present study will highlight the diameter of luminous objects and the expression for the temperature of black bodies. Keywords: Apparent size, Appearance, Isoscele view, Scalene view.
{"title":"Estimating Fundamental Parameters of Celestial Objects Using Some Observational Parameters","authors":"","doi":"10.47011/15.2.2","DOIUrl":"https://doi.org/10.47011/15.2.2","url":null,"abstract":"Abstract: Far away objects seem to appear smaller than the original size. There is confusion about the concept of the perceived size of objects based on distance. In this work, new mathematical formulae are given for the apparent size of objects in both isoscele view and scalene view in terms of absolute distance. The new formulae for the temperature of black bodies and the true diameter of luminous objects are obtained from the apparent size relations. The present study will highlight the diameter of luminous objects and the expression for the temperature of black bodies.\u0000Keywords: Apparent size, Appearance, Isoscele view, Scalene view.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49404276","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}
Abstract: Escherichia coli (E. coli), (190CRC) is one of the most common waterborne pathogens. It exists in drinking water and most of the water diseases are associated with it. The permanent inactivation of E.coli from water requires its DNA distortion, that makes it ineffective for regeneration. The underwater plasma discharge in capillary tube induces reactive oxidant species {OH^. radicals, Ozone (O3), hydrogen peroxide (H2O2) and reactive oxygen (O)}. Ultraviolet (UV) radiations are most important shock waves that play a vital role for complete degradation of E.coli from water. In the current study, the effects of plasma for different oxygen injection rates and applied voltages on DNA distortion of E.coli have been reported. The bactericidal tests including DNA and protein leakage of plasma-treated water showed complete distortion of E.coli DNA structure and sterilization of water from bacteria. Keywords: Capillary discharge, E.coli, DNA, Protein leakage, Sterilization.
{"title":"DNA Reduction of Waterborne E.coli by Underwater Capillary Discharge","authors":"","doi":"10.47011/15.2.11","DOIUrl":"https://doi.org/10.47011/15.2.11","url":null,"abstract":"Abstract: Escherichia coli (E. coli), (190CRC) is one of the most common waterborne pathogens. It exists in drinking water and most of the water diseases are associated with it. The permanent inactivation of E.coli from water requires its DNA distortion, that makes it ineffective for regeneration. The underwater plasma discharge in capillary tube induces reactive oxidant species {OH^. radicals, Ozone (O3), hydrogen peroxide (H2O2) and reactive oxygen (O)}. Ultraviolet (UV) radiations are most important shock waves that play a vital role for complete degradation of E.coli from water. In the current study, the effects of plasma for different oxygen injection rates and applied voltages on DNA distortion of E.coli have been reported. The bactericidal tests including DNA and protein leakage of plasma-treated water showed complete distortion of E.coli DNA structure and sterilization of water from bacteria.\u0000Keywords: Capillary discharge, E.coli, DNA, Protein leakage, Sterilization.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44185966","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}
Abstract: Normally incident electromagnetic wave on a collisional, inhomogeneous magnetoplasma slab has been treated as a multilayered system of homogeneous sub-cells within the transfer matrix method. For incident wave frequencies much above the ion cyclotron frequency, the extraordinary elliptically polarized wave mode is relevant for wave propagation normal to a dc-magnetic field. For a sinusoidal plasma density profile, the transmittance, reflectance and absorbance are plotted versus wave frequency normalized to electron cyclotron frequency for different ratios of electron cyclotron to electron plasma frequencies. For fixed and by varying the wave frequency, the curves of the transmittance and reflectance show two pass and two stop bands. When the ratio of cyclotron frequency to plasma frequency is increased, all bands shift to the region of low wave frequency, the pass bands become broader and the stop bands become narrower. The absorbance show three absorption bands; namely, two collisional absorption bands of evanescent waves at the X-wave cut-off frequencies and a resonance absorption band at the upper hybrid frequency. It has also been found that a homogeneous plasma slab overestimates the collisional absorption at cut-offs and has a broader absorption band of the upper hybrid resonance. Keywords: Waves in inhomogeneous magnetoplasma, Upper hybrid resonance, Reflectance, Absorbance, Transmittance.
{"title":"X-Wave Propagation Characteristics in a Collisional, Inhomogeneous Plasma Slab","authors":"","doi":"10.47011/15.2.6","DOIUrl":"https://doi.org/10.47011/15.2.6","url":null,"abstract":"Abstract: Normally incident electromagnetic wave on a collisional, inhomogeneous magnetoplasma slab has been treated as a multilayered system of homogeneous sub-cells within the transfer matrix method. For incident wave frequencies much above the ion cyclotron frequency, the extraordinary elliptically polarized wave mode is relevant for wave propagation normal to a dc-magnetic field. For a sinusoidal plasma density profile, the transmittance, reflectance and absorbance are plotted versus wave frequency normalized to electron cyclotron frequency for different ratios of electron cyclotron to electron plasma frequencies. For fixed and by varying the wave frequency, the curves of the transmittance and reflectance show two pass and two stop bands. When the ratio of cyclotron frequency to plasma frequency is increased, all bands shift to the region of low wave frequency, the pass bands become broader and the stop bands become narrower. The absorbance show three absorption bands; namely, two collisional absorption bands of evanescent waves at the X-wave cut-off frequencies and a resonance absorption band at the upper hybrid frequency. It has also been found that a homogeneous plasma slab overestimates the collisional absorption at cut-offs and has a broader absorption band of the upper hybrid resonance.\u0000Keywords: Waves in inhomogeneous magnetoplasma, Upper hybrid resonance, Reflectance, Absorbance, Transmittance.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41431188","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}
Abstract: We reported a significant variation of secondary gamma radiation flux (SGR) in month November 2018 and month September 2019 at Udaipur during transit of Sun across constellations. The data was collected as a function of time using a ground-based NaI (Tl) scintillation detector. We interpret such variation of SGR flux on the basis of combined gravitational pulling along with gravitational lensing effect on background radiation by the Sun, constellations and radiation from constellations. Keywords: Cosmic radiation, Sun, Solar radiation, Secondary gamma radiation, Libra constellation, Virgo constellation, Planets, Gravitational pulling, Gravitational lensing.
{"title":"Transit of the Sun across Constellations Libra, Virgo and Variation of Secondary Gamma Radiation Flux in the Months of November 2018 and September 2019, Respectively at Udaipur, India","authors":"","doi":"10.47011/15.2.9","DOIUrl":"https://doi.org/10.47011/15.2.9","url":null,"abstract":"Abstract: We reported a significant variation of secondary gamma radiation flux (SGR) in month November 2018 and month September 2019 at Udaipur during transit of Sun across constellations. The data was collected as a function of time using a ground-based NaI (Tl) scintillation detector. We interpret such variation of SGR flux on the basis of combined gravitational pulling along with gravitational lensing effect on background radiation by the Sun, constellations and radiation from constellations.\u0000Keywords: Cosmic radiation, Sun, Solar radiation, Secondary gamma radiation, Libra constellation, Virgo constellation, Planets, Gravitational pulling, Gravitational lensing.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48106603","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}
Abstract: In this study, silver(I) was extracted at pH 11.5 into organic phase using 0.0001 M hexa-p-t-butyl-hexaacetato calix[6]arene solution in xylene after a five min equilibration period. Silver(I) was back extracted with 1 M HNO3 and determined photometrically. Log-log plot gives 1:1 stoichiometry of extracted species indicating that one ligand reacts with one mole of silver(I). The values of ∆G, ∆H and ∆S were determined by studying the extraction equilibrium at different temperatures. Quantitative separation of binary and synthetic mixtures of silver from associate elements was effectively carried out. The extraction and separation of silver(I) from real and multicomponent samples were also studied. The RSD was ≤0.5%. Keywords: Solvent extraction, Acetyl derivative, Calix[6]arene, Separation, Silver(I).
{"title":"Solvent Extraction and Separation of Silver(I) in Real Sample Using Hexaacetato Calix[6]arene","authors":"","doi":"10.47011/15.1.2","DOIUrl":"https://doi.org/10.47011/15.1.2","url":null,"abstract":"Abstract: In this study, silver(I) was extracted at pH 11.5 into organic phase using 0.0001 M hexa-p-t-butyl-hexaacetato calix[6]arene solution in xylene after a five min equilibration period. Silver(I) was back extracted with 1 M HNO3 and determined photometrically. Log-log plot gives 1:1 stoichiometry of extracted species indicating that one ligand reacts with one mole of silver(I). The values of ∆G, ∆H and ∆S were determined by studying the extraction equilibrium at different temperatures. Quantitative separation of binary and synthetic mixtures of silver from associate elements was effectively carried out. The extraction and separation of silver(I) from real and multicomponent samples were also studied. The RSD was ≤0.5%.\u0000Keywords: Solvent extraction, Acetyl derivative, Calix[6]arene, Separation, Silver(I).","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42258812","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}
Abstract: Aluminium-doped Nickel-Cobalt ferrite nanoparticles with general formula Ni0.5Co0.5AlxFe2-xO4 (x = 0 and x = 0.5) were synthesized by microwave-assisted sol-gel auto-combustion method. The X-ray diffraction analysis of the samples confirms single phase with cubic spinel structure belonging to space group Fd3m. The average crystallite size calculated using Debey-Scherrer formula was found to be in the range of 19-36 nm. XRD studies revealed that the lattice parameter (a), the particle size (D) and X-ray density (dx) decrease, whereas porosity increases with Al substitution. Energy Dispersive X-ray (EDX) was used to confirm the elemental composition of synthesized powders. TEM micrograph suggests that the particle size is in nanometric range, which confirms the nanocrystalline nature of the samples. The electrical resistivity and dielectric constant have been studied as functions of temperature. It was observed that the electrical resistivity decreases with increasing temperature, exhibiting the semiconducting nature of the sample. The dielectric constant increases with increase in temperature up to transition temperature and then decreases, which is explained on the basis of hopping mechanism. Keywords: Ni-Co ferrites, Sol-Gel, XRD, Resistivity, Dielectric constant.
{"title":"Structural and Electrical Studies of Aluminium-doped Nickel-Cobalt Ferrite Nanoparticles","authors":"","doi":"10.47011/15.1.4","DOIUrl":"https://doi.org/10.47011/15.1.4","url":null,"abstract":"Abstract: Aluminium-doped Nickel-Cobalt ferrite nanoparticles with general formula Ni0.5Co0.5AlxFe2-xO4 (x = 0 and x = 0.5) were synthesized by microwave-assisted sol-gel auto-combustion method. The X-ray diffraction analysis of the samples confirms single phase with cubic spinel structure belonging to space group Fd3m. The average crystallite size calculated using Debey-Scherrer formula was found to be in the range of 19-36 nm. XRD studies revealed that the lattice parameter (a), the particle size (D) and X-ray density (dx) decrease, whereas porosity increases with Al substitution. Energy Dispersive X-ray (EDX) was used to confirm the elemental composition of synthesized powders. TEM micrograph suggests that the particle size is in nanometric range, which confirms the nanocrystalline nature of the samples. The electrical resistivity and dielectric constant have been studied as functions of temperature. It was observed that the electrical resistivity decreases with increasing temperature, exhibiting the semiconducting nature of the sample. The dielectric constant increases with increase in temperature up to transition temperature and then decreases, which is explained on the basis of hopping mechanism.\u0000Keywords: Ni-Co ferrites, Sol-Gel, XRD, Resistivity, Dielectric constant.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43202867","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}
Abstract: In the present study, ultrasonic velocity (u), density (ρ) and viscosity (η) have been measured at 2 MHz frequency in the binary mixtures of thiamin hydrochloride and methanol in the concentration range 0 to 0.1 molar concentration at 303K using ultrasonic interferometer technique. From the basic experimental data, various acoustic and thermodynamic parameters; namely, adiabatic compressibility, free length, free volume and internal pressure, were calculated, with a view to investigate the nature and strength of molecular interaction in the binary liquid mixture of thiamin hydrochloride and methanol. The obtained results support the occurrence of molecular interaction through hydrogen bonding in the binary liquid mixture. Keywords: Ultrasonic velocity, Binary liquid mixture, Molecular interaction, Hydrogen bonding.
{"title":"Study of Acoustic Behaviour of Thiamin Hydrochloride with Methanol at 303K","authors":"","doi":"10.47011/15.1.6","DOIUrl":"https://doi.org/10.47011/15.1.6","url":null,"abstract":"Abstract: In the present study, ultrasonic velocity (u), density (ρ) and viscosity (η) have been measured at 2 MHz frequency in the binary mixtures of thiamin hydrochloride and methanol in the concentration range 0 to 0.1 molar concentration at 303K using ultrasonic interferometer technique. From the basic experimental data, various acoustic and thermodynamic parameters; namely, adiabatic compressibility, free length, free volume and internal pressure, were calculated, with a view to investigate the nature and strength of molecular interaction in the binary liquid mixture of thiamin hydrochloride and methanol. The obtained results support the occurrence of molecular interaction through hydrogen bonding in the binary liquid mixture.\u0000Keywords: Ultrasonic velocity, Binary liquid mixture, Molecular interaction, Hydrogen bonding.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41820863","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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