The International Journal of Physics最新文献_第4页

On the Incompressible Fluid Flow over the Prismatic Bodies 不可压缩流体在棱镜体上的流动

The International Journal of Physics Pub Date : 2022-03-21 DOI: 10.12691/ijp-10-2-2

Khatiashvili Nino

引用次数: 1

Structural, Electronic and Mechanical Properties of Re Doped FeMnP0.67A0.33 (A=Ga and Ge): A DFT Study Re掺杂FeMnP0.67A0.33 (A=Ga和Ge)的结构、电子和力学性能:DFT研究

The International Journal of Physics Pub Date : 2022-02-13 DOI: 10.12691/ijp-10-1-6

Gabriel Kipkemei Chirchir, Winfred Mueni Mulwa, Bamidele Ibrahim Adetunji

{"title":"Structural, Electronic and Mechanical Properties of Re Doped FeMnP0.67A0.33 (A=Ga and Ge): A DFT Study","authors":"Gabriel Kipkemei Chirchir, Winfred Mueni Mulwa, Bamidele Ibrahim Adetunji","doi":"10.12691/ijp-10-1-6","DOIUrl":"https://doi.org/10.12691/ijp-10-1-6","url":null,"abstract":"The structural, electronic and mechanical properties of Re doped FeMnP0.67A0.33 (A= Ga and Ge) were examined by use of density functional theory (DFT) within the generalized gradient approximations as demonstrated in Quantum ESPRESSO code. The optimized structural parameters as well as derived lattice parameters are in consistent with other computational and achievable experimental results. The computed independent elastic constants confirm the mechanical stability of the investigated materials. The computed Poisson’s and Pugh’s ratios as well as Cauchy pressure, verify that FeMn0.67Re0.33P0.67Ga0.33 is the most ductile among the studied compounds. The calculated values of bulk modulus, shear modulus and Young’s modulus confirm high values of bond strength, hardness and stiffness of the investigated materials respectively. Therefore, the four compounds considered may be appropriate for industrial applications. The results report that FeMn0.67Re0.33P0.67Ga0.33 compound is more ductile and mechanically stable compared to other investigated compounds. This is the first qualitative computational prediction of the elastic properties of FeMnP0.67Ge0.33, FeMnP0.67Ga0.33, FeMn0.67Re0.33P0.67Ge0.33 and FeMn0.67Re0.33P0.67Ga0.33 compounds and this awaits experimental ratification. The calculated electronic density of states confirms that the Re_2p states are located in the conduction band (CB) in the unite cell while Re_3d dominate the CB in the supercell. Results from the doped compounds could not be compared with experimental or computational findings because to the best of our knowledge, this has not been done.","PeriodicalId":22540,"journal":{"name":"The International Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90640025","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}

引用次数: 0

Doubly-Excited 1,3Se, 1,3P0, 1,3De, 1,3F0 and 1,3Ge Resonances States of Two-Electron Atoms below the N = 3 – 8 Hydrogenic Thresholds N = 3 - 8氢阈值下双电子原子的双激发1,3se, 1,3p0, 1,3de, 1,3f0和1,3ge共振态

The International Journal of Physics Pub Date : 2022-01-24 DOI: 10.12691/ijp-10-1-2

M. T. Gning, I. Sakho

引用次数: 1

The Mysterious Constant Alpha (α) in Quantumphysics 量子物理学中的神秘常数α

The International Journal of Physics Pub Date : 2022-01-24 DOI: 10.12691/ijp-10-1-4

T. G.M. Gerlitz

引用次数: 0

Osmium Dioxide (OsO2) and Osmium Tetroxide (OsO4) Smart Nano Particles, Nano Capsules and Nanoclusters Influence, Impression and Efficacy in Cancer Prevention, Prognosis, Diagnosis, Imaging, Screening, Treatment and Management under Synchrotron and Synchrocyclotron Radiations 二氧化锇(OsO2)和四氧化锇(OsO4)智能纳米粒子、纳米胶囊和纳米团簇在同步加速器和同步回旋加速器辐射下癌症预防、预后、诊断、成像、筛查、治疗和管理中的影响、印象和疗效

The International Journal of Physics Pub Date : 2021-12-27 DOI: 10.12691/ijp-10-1-1

Alireza Heidari, Margaret Hotz, Nancy MacDonald, Victoria Peterson, Angela Caissutti, E. Besana, J. Esposito, K. Schmitt, Ling-Yu Chan, Francesca Sherwood, M. Henderson, Jimmy Kimmel

{"title":"Osmium Dioxide (OsO2) and Osmium Tetroxide (OsO4) Smart Nano Particles, Nano Capsules and Nanoclusters Influence, Impression and Efficacy in Cancer Prevention, Prognosis, Diagnosis, Imaging, Screening, Treatment and Management under Synchrotron and Synchrocyclotron Radiations","authors":"Alireza Heidari, Margaret Hotz, Nancy MacDonald, Victoria Peterson, Angela Caissutti, E. Besana, J. Esposito, K. Schmitt, Ling-Yu Chan, Francesca Sherwood, M. Henderson, Jimmy Kimmel","doi":"10.12691/ijp-10-1-1","DOIUrl":"https://doi.org/10.12691/ijp-10-1-1","url":null,"abstract":"In the current research, catalytic effectiveness of synchrotron and synchrocyclotron radiations on Osmium Dioxide (OsO 2 ) and Osmium Tetroxide (OsO 4 ) nano capsules delivery in DNA/RNA of cancer cells is investigated. The calculation of thickness and optical constants of Osmium Dioxide (OsO 2 ) and Osmium Tetroxide (OsO 4 ) catalytic effectiveness of synchrotron and synchrocyclotron radiations on Osmium Dioxide (OsO 2 ) and Osmium Tetroxide (OsO 4 ) nano capsules delivery in DNA/RNA of cancer cells produced using sol–gel method over glassy medium through a single reflection spectrum is presented. To obtain an appropriate fit for reflection spectrum, the classic Drude–Lorentz model for parametric di–electric function is used. The best fitting parameters are determined to simulate the reflection spectrum using Lovenberg–Marquardt optimization method. The simulated reflectivity from the derived optical constants and thickness are in good agreement with experimental results. 4 Nano and Influence, Impression and Efficacy in Cancer Prevention, Prognosis, Diagnosis, Imaging, Screening, Treatment and Management under Synchrotron and Synchrocyclotron Radiations.”","PeriodicalId":22540,"journal":{"name":"The International Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77767108","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}

引用次数: 1

A Photon Density Theory Explaining Experiments on High-order Doppler Effect 解释高阶多普勒效应实验的光子密度理论

The International Journal of Physics Pub Date : 2021-12-05 DOI: 10.12691/ijp-9-6-6

Xianming Meng

引用次数: 0

Reexamine Copenhagen Interpretations of Quantum Mechanics 重新审视量子力学的哥本哈根诠释

The International Journal of Physics Pub Date : 2021-11-16 DOI: 10.12691/ijp-9-6-3

Z. Bo

引用次数: 2

Thick Lenses Systems between Arbitrary Index of Refraction Optical Media. A Simple Optical Model for the Human Eye 任意折射率光学介质之间的厚透镜系统。人眼的简单光学模型

The International Journal of Physics Pub Date : 2021-11-02 DOI: 10.12691/ijp-9-6-1

Fulvio Andres Callegari

引用次数: 0

An Alternative Approach for Quantum Forces in Toroidal Topology 环形拓扑中量子力的另一种方法

The International Journal of Physics Pub Date : 2021-09-07 DOI: 10.12691/ijp-9-5-5

A. Malbouisson

引用次数: 1

General Formulation of Ångström-Prescott Coefficients: A New Approach for Côte d’Ivoire Ångström-Prescott系数的一般公式:Côte科特迪瓦的新方法

The International Journal of Physics Pub Date : 2021-09-02 DOI: 10.12691/ijp-9-5-4

M. Djoman, F. W. Fassinou, A. Memelèdje

{"title":"General Formulation of Ångström-Prescott Coefficients: A New Approach for Côte d’Ivoire","authors":"M. Djoman, F. W. Fassinou, A. Memelèdje","doi":"10.12691/ijp-9-5-4","DOIUrl":"https://doi.org/10.12691/ijp-9-5-4","url":null,"abstract":"In this study, we used calibrated annual Angstrom-Prescott (AP) coefficients of nine (9) weather stations in Cote d'Ivoire to formalize two general equations expressing them as a function of the latitude and altitude. The aim is formalizing the general equations of Angstrom-Prescott coefficients that can be used to increase the density of global horizontal irradiance. The Angstrom-Prescott coefficients thus obtained were compared with the values calibrated using the root mean square error (RMSE), the mean bias error (MBE), the mean absolute bias error (MABE), the NSE coefficient and the statistical t-test (t-stat) with the following results for coefficients a and b respectively: 0.00935143, -0.00042828, 0.00825164, 0.99734601, 0.12129825 and 0.00633772, -0.00017254, 0.00471422, 0.7653197, 0.072056623. To improve the estimation of coefficient a, we linked it to the coefficient b by a polynomial function of degree two. This equation led to a significant decrease in the absolute estimation error of coefficient a resulting in low values of RMSE and MABE. RMSE decreased from 0.00935143 to 0.00498464 and MABE decreased from 0.00825164 to 0.00346367. The low values of the statistical t-test (t-stat) (0.45735957 for a and 0.07205623 for b) for the two equations show that the model agrees well with the data. The good agreement between the annual Angstrom-Prescott coefficients estimated and calibrated also confirmed by high NSE coefficients (0.99924593 for a and 0.7653197 for b) recommends the use of this model in any site in Cote d'Ivoire to predict global horizontal irradiance.","PeriodicalId":22540,"journal":{"name":"The International Journal of Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88615825","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}

引用次数: 1