Abstract: The world’s energy requisite has been controlled by petroleum oil for a long time in transportation, household and power sectors. Mineral Transformation Oil (MTO), being an essential insulating material in transformers, has been used for over fifteen decades. MTO application in the power sector could be hazardous to the environment, especially during a transformer explosion which may cause a spill of oil to the soil or water stream. Owing to the threat of MTO to environment aspects, alternative insulating oil with biodegradable characteristics has attracted a lot of devotions in recent studies. To validate the aptness of using Purified Papaya Seed Oil (PPSO) as an insulating fluid in an electric transformer, it is vital to compare dielectric properties of PPSO with that of MTO insulating liquid. This study presents a comparison of temperature effect on dielectric properties of PPSO with the MTO insulating liquid. Breakdown voltage, dissipation factor (tan δ) and dielectric constant were measured by existing established testing standards. The breakdown voltage was determined by IEC 156 standard test method, whereas the dissipation factor and dielectric constant were determined based on IEC 60247 standard test method. The results revealed that the variation of dielectric properties of PPSO due to temperature change was similar to that of MTO. However, the dissipation factors and breakdown voltages of dielectric properties of PPSO were better when compared with those of MTO at higher temperatures, but with a slight decrease in dielectric constants with the increase in temperature. Keywords: Papaya seed oil, Dissipation factor, Dielectric constant, Breakdown voltage, Temperature, Transformer. PACS: 77.84. Nh, 88.05. Lg.
{"title":"Comparing the Dielectric Properties of Papaya Oil with Mineral Insulating Liquid under Temperature Variation","authors":"","doi":"10.47011/15.4.2","DOIUrl":"https://doi.org/10.47011/15.4.2","url":null,"abstract":"Abstract: The world’s energy requisite has been controlled by petroleum oil for a long time in transportation, household and power sectors. Mineral Transformation Oil (MTO), being an essential insulating material in transformers, has been used for over fifteen decades. MTO application in the power sector could be hazardous to the environment, especially during a transformer explosion which may cause a spill of oil to the soil or water stream. Owing to the threat of MTO to environment aspects, alternative insulating oil with biodegradable characteristics has attracted a lot of devotions in recent studies. To validate the aptness of using Purified Papaya Seed Oil (PPSO) as an insulating fluid in an electric transformer, it is vital to compare dielectric properties of PPSO with that of MTO insulating liquid. This study presents a comparison of temperature effect on dielectric properties of PPSO with the MTO insulating liquid. Breakdown voltage, dissipation factor (tan δ) and dielectric constant were measured by existing established testing standards. The breakdown voltage was determined by IEC 156 standard test method, whereas the dissipation factor and dielectric constant were determined based on IEC 60247 standard test method. The results revealed that the variation of dielectric properties of PPSO due to temperature change was similar to that of MTO. However, the dissipation factors and breakdown voltages of dielectric properties of PPSO were better when compared with those of MTO at higher temperatures, but with a slight decrease in dielectric constants with the increase in temperature.\u0000Keywords: Papaya seed oil, Dissipation factor, Dielectric constant, Breakdown voltage, Temperature, Transformer.\u0000PACS: 77.84. Nh, 88.05. Lg.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43746587","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}
J. Ntibi, E. Inyang, E. Inyang, Eddy S. William, E. E. Ibekwe
Abstract: We solved the N-dimensional Klein-Gordon equation analytically using the Nikiforov-Uvarov method to obtain the energy eigenvalues and the corresponding wave function in terms of Laguerre polynomials with the ultra generalized exponential–hyperbolic potential. The present results are applied for calculating the mass spectra of heavy mesons, such as charmonium (cc ̅) and bottomonium (bb ̅), for different quantum states. The present work provides excellent results in comparison with experimental data with a maximum error of 0.0059GeV and the works of other researchers. Keywords: Ultra generalized exponential–hyperbolic potential, Klein-Gordon equation, Heavy mesons, Nikiforov-Uvarov method.
{"title":"Solutions of the N-dimensional Klein-Gordon Equation with Ultra Generalized Exponential–Hyperbolic Potential to Predict the Mass Spectra of Heavy Mesons","authors":"J. Ntibi, E. Inyang, E. Inyang, Eddy S. William, E. E. Ibekwe","doi":"10.47011/15.4.8","DOIUrl":"https://doi.org/10.47011/15.4.8","url":null,"abstract":"Abstract: We solved the N-dimensional Klein-Gordon equation analytically using the Nikiforov-Uvarov method to obtain the energy eigenvalues and the corresponding wave function in terms of Laguerre polynomials with the ultra generalized exponential–hyperbolic potential. The present results are applied for calculating the mass spectra of heavy mesons, such as charmonium (cc ̅) and bottomonium (bb ̅), for different quantum states. The present work provides excellent results in comparison with experimental data with a maximum error of 0.0059GeV and the works of other researchers.\u0000Keywords: Ultra generalized exponential–hyperbolic potential, Klein-Gordon equation, Heavy mesons, Nikiforov-Uvarov method.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49128568","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 field of gamma spectrometry with calibrated NaI(Tl) 3” × 3” γ-ray spectrometer, the correction of the photo-peak region of the original spectrum was discussed. In the present paper, GRAVEL algorithm based on Bayes theorem was used to test the unfolding process at low energetic interval, where Compton continium and background contributions are dominant. The simulated response matrix was constructed from mono-energetic γ-ray using validated Geant4 code. The calculated spectrum was compared with experimental 133Ba gamma spectrum. The compared activities were found in good agreement in 4.10 % order. Keywords: Spectrum unfolding, Gamma-ray spectra, Geant4 simulation, NaI(Tl) detector. PACS: NaI(Tl): Sodium iodide (NaI) detector activated by thallium (Tl), Geant4: GEometry ANd Traking, FWHM: Full Width at Half Maximum.
文摘：在校准的NaI（Tl）3“×3”γ能谱仪的γ能谱领域，讨论了对原始光谱光峰区的校正。本文使用基于贝叶斯定理的GRAVEL算法来测试低能量区间的展开过程，其中康普顿连续群和背景贡献占主导地位。利用经验证的Geant4程序，由单能γ射线构建了模拟响应矩阵。将计算的光谱与实验的133Ba伽玛光谱进行了比较。比较的活性在4.10%的顺序中被发现是良好一致的。关键词：光谱展开，伽马射线光谱，Geant4模拟，NaI（Tl）探测器。PACS:NaI（Tl）：由铊（T1）激活的碘化钠（NaI）检测器，Geant4:GEometry ANd Traking，FWHM：半最大全宽。
{"title":"Low-energy Gamma Unfolding Using NaI(Tl) Geant4 Detector Model and GRAVEL Code","authors":"S. Boukhalfa, R. Khelifi","doi":"10.47011/15.4.9","DOIUrl":"https://doi.org/10.47011/15.4.9","url":null,"abstract":"Abstract: In the field of gamma spectrometry with calibrated NaI(Tl) 3” × 3” γ-ray spectrometer, the correction of the photo-peak region of the original spectrum was discussed. In the present paper, GRAVEL algorithm based on Bayes theorem was used to test the unfolding process at low energetic interval, where Compton continium and background contributions are dominant. The simulated response matrix was constructed from mono-energetic γ-ray using validated Geant4 code. The calculated spectrum was compared with experimental 133Ba gamma spectrum. The compared activities were found in good agreement in 4.10 % order.\u0000Keywords: Spectrum unfolding, Gamma-ray spectra, Geant4 simulation, NaI(Tl) detector.\u0000PACS: NaI(Tl): Sodium iodide (NaI) detector activated by thallium (Tl), Geant4: GEometry ANd Traking, FWHM: Full Width at Half Maximum.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42568538","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 purpose of this study is to investigate the role of chloroform solvent in improving the structural bonding, surface morphology and mechanical strength of poly (methy methacrylate) PMMA thin film via casting method. The functional group of this material was determined using the Fourier transform infrared (FTIR) spectroscopy and the surface morphology was examined by scanning electron microscopy (SEM). The mechanical properties were further characterized using the tensile testing machine and the hardness tester. SEM images reveal that the PMMA film surface exhibits a large and smooth homogeneous surface area, indicating the formation of a clear and highly transparent optical film. FTIR spectra demonstrate a slight band shift and enhanced intensity of C–O and C-H bands for the PMMA thin film as compared to the one in powder form. The mechanical strength of the present PMMA thin film was found to be much higher than that of the commercially available plastic and PMMA thin films, in which this finding could convey a significant insight in order to boost the availability and functionality of the current polymer applications. Keywords: PMMA thin film, IR spectra, Young’s modulus, Mechanical stretching, Hardness.
{"title":"Improved Structural Bonding, Morphology and Mechanical Properties of Poly (Methy Methacrylate) (PMMA) Thin Film Induced by Chloroform Solvent Casting","authors":"","doi":"10.47011/15.4.6","DOIUrl":"https://doi.org/10.47011/15.4.6","url":null,"abstract":"Abstract: The purpose of this study is to investigate the role of chloroform solvent in improving the structural bonding, surface morphology and mechanical strength of poly (methy methacrylate) PMMA thin film via casting method. The functional group of this material was determined using the Fourier transform infrared (FTIR) spectroscopy and the surface morphology was examined by scanning electron microscopy (SEM). The mechanical properties were further characterized using the tensile testing machine and the hardness tester. SEM images reveal that the PMMA film surface exhibits a large and smooth homogeneous surface area, indicating the formation of a clear and highly transparent optical film. FTIR spectra demonstrate a slight band shift and enhanced intensity of C–O and C-H bands for the PMMA thin film as compared to the one in powder form. The mechanical strength of the present PMMA thin film was found to be much higher than that of the commercially available plastic and PMMA thin films, in which this finding could convey a significant insight in order to boost the availability and functionality of the current polymer applications.\u0000Keywords: PMMA thin film, IR spectra, Young’s modulus, Mechanical stretching, Hardness.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42281342","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}
A. Shaheen, M. Aljarrah, Morad Etier, A. El-Sheikh, F. Salman
Abstract: In this paper, a single crystal triglycine sulfate (TGS) doped with copper sulfate was synthesized using the slow evaporation technique. Structural characterization was carried out using X-ray diffraction and FTIR techniques. Thermal studies revealed that the addition of copper sulfate did not affect the thermal stability of the TGS. In addition, intensive dielectric investigation has been carried out, which showed that the addition of copper sulfate enhances the dielectric permittivity. A change in Curie temperature has been observed upon doping TGS with copper sulfate. Keywords: TGS doping, Copper sulfate, Dielectrics, Cole-Cole plot.
{"title":"Structural and Dielectric Investigations on Pure and Doped Triglycine Sulfate (TGS) Crystals","authors":"A. Shaheen, M. Aljarrah, Morad Etier, A. El-Sheikh, F. Salman","doi":"10.47011/15.4.5","DOIUrl":"https://doi.org/10.47011/15.4.5","url":null,"abstract":"Abstract: In this paper, a single crystal triglycine sulfate (TGS) doped with copper sulfate was synthesized using the slow evaporation technique. Structural characterization was carried out using X-ray diffraction and FTIR techniques. Thermal studies revealed that the addition of copper sulfate did not affect the thermal stability of the TGS. In addition, intensive dielectric investigation has been carried out, which showed that the addition of copper sulfate enhances the dielectric permittivity. A change in Curie temperature has been observed upon doping TGS with copper sulfate.\u0000Keywords: TGS doping, Copper sulfate, Dielectrics, Cole-Cole plot.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48612864","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 assessment of natural radionuclides in sixteen soil samples obtained across Saje, Oke-Diya, Premier and Ita-Oshin dumpsites, Ogun State, Southwestern Nigeria was carried out to determine the activity concentrations of 238U, 232Th and 40K and to evaluate possible health hazards that these radionuclides may pose to inhabitants. The samples were collected at profile depths of 0-20, 20-40, 40-60 and 60-80 cm using soil auger. The samples were oven-dried for 24 hours and about 600 g post-sieved samples were sealed for thirty days before analysis using a high-purity germanium detector. The results revealed higher concentrations of 40K compared to 232Th and 238U in the soil samples. Saje samples revealed mean concentrations of 238U and 40K above their global averages, while those of 232Th were below the global averages. The mean concentrations of 238U, 232Th and 40K were all above the global averages for Oke-Diya samples. Ita-Oshin and Premier samples recorded mean concentrations that were below the global averages. The estimated radiological parameters for the representative soil samples were all below the permissible limits, except for the absorbed dose rates of Oke-Diya samples. The study areas generally revealed a reasonably high level of soil radionuclides which may continue to increase with the dumpsites' age. Keywords: Dumpsites, Soil, Natural radionuclides, Activity concentrations, Health risks.
{"title":"Assessment of Naturally Occurring Radionuclides with Depths in the Soils of Selected Dumpsites, Ogun State, Southwestern Nigeria","authors":"","doi":"10.47011/15.4.7","DOIUrl":"https://doi.org/10.47011/15.4.7","url":null,"abstract":"Abstract: The assessment of natural radionuclides in sixteen soil samples obtained across Saje, Oke-Diya, Premier and Ita-Oshin dumpsites, Ogun State, Southwestern Nigeria was carried out to determine the activity concentrations of 238U, 232Th and 40K and to evaluate possible health hazards that these radionuclides may pose to inhabitants. The samples were collected at profile depths of 0-20, 20-40, 40-60 and 60-80 cm using soil auger. The samples were oven-dried for 24 hours and about 600 g post-sieved samples were sealed for thirty days before analysis using a high-purity germanium detector. The results revealed higher concentrations of 40K compared to 232Th and 238U in the soil samples. Saje samples revealed mean concentrations of 238U and 40K above their global averages, while those of 232Th were below the global averages. The mean concentrations of 238U, 232Th and 40K were all above the global averages for Oke-Diya samples. Ita-Oshin and Premier samples recorded mean concentrations that were below the global averages. The estimated radiological parameters for the representative soil samples were all below the permissible limits, except for the absorbed dose rates of Oke-Diya samples. The study areas generally revealed a reasonably high level of soil radionuclides which may continue to increase with the dumpsites' age.\u0000Keywords: Dumpsites, Soil, Natural radionuclides, Activity concentrations, Health risks.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47060970","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}
V. Sarychev, S. Nevskii, М. А. Kuznetsov, S. A. Solodsky, D. Il'yashchenko, E. Verkhoturova
Abstract: The goal of this research is to determine input parameters necessary for a micro-dimensional range of wavelengths of disturbances. Therefore, appropriate parameters, furthering generation of a micrometer range in wavelengths of disturbances can be determined with the help of a numerical solution. A simplified dispersion equation is given for shortwave disturbances on the boundary of two viscous-potential liquids in a cylindrical geometry; the ratio of decrement to wavenumber in shortwave range can be determined with the help of this equation. The study has established that this ratio has two maximums for the iron / argon system. The first maximum falls within the millimeter range wavelength, whereas the second maximum is registered in a micrometer range. Speeds of liquid and gas are determined, which provide a micrometer range of wavelength of disturbances on the surface of liquid. Keywords: Kelvin-Helmholtz instability, Cylindrical geometry, Wavelengths, Mathematical modeling. PACS: 61.20.Ja, 61.20.Gy, 47.15.Fe, 47.15.Rq, 51,50.+V.
{"title":"Kelvin-Helmholtz Instability of Cylindrical Geometry for Micro-dimensional Range of Wavelengths","authors":"V. Sarychev, S. Nevskii, М. А. Kuznetsov, S. A. Solodsky, D. Il'yashchenko, E. Verkhoturova","doi":"10.47011/15.3.3","DOIUrl":"https://doi.org/10.47011/15.3.3","url":null,"abstract":"Abstract: The goal of this research is to determine input parameters necessary for a micro-dimensional range of wavelengths of disturbances. Therefore, appropriate parameters, furthering generation of a micrometer range in wavelengths of disturbances can be determined with the help of a numerical solution. A simplified dispersion equation is given for shortwave disturbances on the boundary of two viscous-potential liquids in a cylindrical geometry; the ratio of decrement to wavenumber in shortwave range can be determined with the help of this equation. The study has established that this ratio has two maximums for the iron / argon system. The first maximum falls within the millimeter range wavelength, whereas the second maximum is registered in a micrometer range. Speeds of liquid and gas are determined, which provide a micrometer range of wavelength of disturbances on the surface of liquid.\u0000\u0000Keywords: Kelvin-Helmholtz instability, Cylindrical geometry, Wavelengths, Mathematical modeling.\u0000\u0000PACS: 61.20.Ja, 61.20.Gy, 47.15.Fe, 47.15.Rq, 51,50.+V.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45883317","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: Using the hydrodynamic model of semiconductor-plasmas and following the coupled-mode approach, we develop a theoretical formulation to study piezoelectric contributions to parametric amplification of acoustical phonons in magnetized n-InSb crystal. The origin of nonlinear interaction is assumed to lie in effective second-order optical susceptibility arising due to nonlinear induced current density and electrostrictive polarization of the medium. Expressions are obtained for threshold pump amplitude for the onset of parametric process and parametric gain coefficient (well above the threshold pump field) in the presence and absence of piezoelectricity and/or externally applied magnetostatic field. Numerical analysis is made for n-InSb crystal irradiated by 10.6 m pulsed CO2 laser. The piezoelectric contributions to three-wave parametric amplification process are only in the presence of magnetostatic field. The parametric gain coefficient is independent of doping concentration for the cases when either/both piezoelectricity and magnetostatic field are absent. Around resonance (electron-cyclotron frequency ~ pump frequency), the parametric gain coefficient in the presence of piezoelectricity is 102 times higher than that in the absence of piezoelectricity. The analysis establishes the technological potentiality of transversely magnetized n-InSb as the host for parametric devices, like parametric amplifiers and oscillators. Keywords: Parametric amplification, Acoustical phonons, Piezoelectricity, Electrostriction, n-InSb crystal. PACS numbers: 42.65.-k, 78.55.Cr, 71.38.-k, 52.35.Mw.
{"title":"Piezoelectric Contributions to Parametric Amplification of Acoustical Phonons in Magnetized n-InSb Crystal","authors":"Mahender Singh, Manjeet Singh","doi":"10.47011/15.3.2","DOIUrl":"https://doi.org/10.47011/15.3.2","url":null,"abstract":"Abstract: Using the hydrodynamic model of semiconductor-plasmas and following the coupled-mode approach, we develop a theoretical formulation to study piezoelectric contributions to parametric amplification of acoustical phonons in magnetized n-InSb crystal. The origin of nonlinear interaction is assumed to lie in effective second-order optical susceptibility arising due to nonlinear induced current density and electrostrictive polarization of the medium. Expressions are obtained for threshold pump amplitude for the onset of parametric process and parametric gain coefficient (well above the threshold pump field) in the presence and absence of piezoelectricity and/or externally applied magnetostatic field. Numerical analysis is made for n-InSb crystal irradiated by 10.6 m pulsed CO2 laser. The piezoelectric contributions to three-wave parametric amplification process are only in the presence of magnetostatic field. The parametric gain coefficient is independent of doping concentration for the cases when either/both piezoelectricity and magnetostatic field are absent. Around resonance (electron-cyclotron frequency ~ pump frequency), the parametric gain coefficient in the presence of piezoelectricity is 102 times higher than that in the absence of piezoelectricity. The analysis establishes the technological potentiality of transversely magnetized n-InSb as the host for parametric devices, like parametric amplifiers and oscillators.\u0000\u0000Keywords: Parametric amplification, Acoustical phonons, Piezoelectricity, Electrostriction, n-InSb crystal.\u0000\u0000PACS numbers: 42.65.-k, 78.55.Cr, 71.38.-k, 52.35.Mw.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44944128","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}
Salah M. Jaradat, Marwan S. Mousa, Donald Dunn, Casey S. Reason
Abstract: This survey researched the aspects that inspire secondary-school physics teachers to utilize computer technology in instruction and learning in four areas of the Hashemite Kingdom of Jordan. To assess the research question, the survey used a quantitative review research strategy utilizing a survey questionnaire comprising of 25 Likert-type scale inquiries to determine physics teachers' perspectives toward utilizing computer technology in physics lesson preparation and delivery techniques. In opposition to what might be anticipated, the results encountered several factors that were not indicators of statistical significance of physics teachers' employment of computer technology in instructing physics: gender; academic degree; school location; normal class size; ways of acquiring technology skills, for example, self-taught and computer courses; instructional style; perceived barriers; and availability of technology resources. The findings verify the expectation that the lack of ICT tools in the Jordanian high-school physics curriculum has an impact on teachers’ job satisfaction, physics lesson preparation and delivery techniques and Tawjihi students' individual learning styles. Keywords: ICT, ICT-driven classroom, Rogers' diffusion of innovation theory.
{"title":"Aspects Influencing Computer-technology Adoption in Secondary- school Physics Instruction in Jordan","authors":"Salah M. Jaradat, Marwan S. Mousa, Donald Dunn, Casey S. Reason","doi":"10.47011/15.3.1","DOIUrl":"https://doi.org/10.47011/15.3.1","url":null,"abstract":"Abstract: This survey researched the aspects that inspire secondary-school physics teachers to utilize computer technology in instruction and learning in four areas of the Hashemite Kingdom of Jordan. To assess the research question, the survey used a quantitative review research strategy utilizing a survey questionnaire comprising of 25 Likert-type scale inquiries to determine physics teachers' perspectives toward utilizing computer technology in physics lesson preparation and delivery techniques. In opposition to what might be anticipated, the results encountered several factors that were not indicators of statistical significance of physics teachers' employment of computer technology in instructing physics: gender; academic degree; school location; normal class size; ways of acquiring technology skills, for example, self-taught and computer courses; instructional style; perceived barriers; and availability of technology resources. The findings verify the expectation that the lack of ICT tools in the Jordanian high-school physics curriculum has an impact on teachers’ job satisfaction, physics lesson preparation and delivery techniques and Tawjihi students' individual learning styles.\u0000\u0000Keywords: ICT, ICT-driven classroom, Rogers' diffusion of innovation theory.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45374749","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: Benzoic acid derivative p-n-Nonyloxy Benzoic Acid (NOBA) has been chosen for the present investigation to analyze its properties under the effect of a polar aprotic solvent. Indication of stable phase has been examined by interaction-energy values both in pure form and in a polar aprotic solvent dimethylformamide (DMF, ε=38) for different modes of interaction. Complete neglect differential overlap (CNDO/2) method has been applied for net atomic charges and dipole moments at the atomic center. Modified version of Rayleigh–Schrödinger perturbation theory and multicentered-multipole expansion method have been used to regulate long-range intermolecular interactions, where short-range interactions have been studied by 6-exponential potential function. Details on phase behavior and phase stability of NOBA have been reported using statistical thermodynamic calculations of Helmholtz free energies and entropies in several modes of interaction. Keywords: NOBA, Interaction energy, Helmholtz free energy, Entropy, Stability.
{"title":"Molecular Ordering and Nematic Character of Nonyloxy Benzoic Acid: Solvent and Thermodynamic Potentials Effect","authors":"P. Das, P. L. Praveen","doi":"10.47011/15.3.8","DOIUrl":"https://doi.org/10.47011/15.3.8","url":null,"abstract":"Abstract: Benzoic acid derivative p-n-Nonyloxy Benzoic Acid (NOBA) has been chosen for the present investigation to analyze its properties under the effect of a polar aprotic solvent. Indication of stable phase has been examined by interaction-energy values both in pure form and in a polar aprotic solvent dimethylformamide (DMF, ε=38) for different modes of interaction. Complete neglect differential overlap (CNDO/2) method has been applied for net atomic charges and dipole moments at the atomic center. Modified version of Rayleigh–Schrödinger perturbation theory and multicentered-multipole expansion method have been used to regulate long-range intermolecular interactions, where short-range interactions have been studied by 6-exponential potential function. Details on phase behavior and phase stability of NOBA have been reported using statistical thermodynamic calculations of Helmholtz free energies and entropies in several modes of interaction.\u0000\u0000Keywords: NOBA, Interaction energy, Helmholtz free energy, Entropy, Stability.","PeriodicalId":42562,"journal":{"name":"Jordan Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.7,"publicationDate":"2022-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45667530","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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