Iranian Journal of Science and Technology, Transactions A: Science

Công bố khoa học tiêu biểu

* Dữ liệu chỉ mang tính chất tham khảo

Sắp xếp:  
Electrochemical Study of Spark Plasma-Sintered Copper Reinforced with Ni/SiC Micron-Sized Particles for Electrical Applications
Iranian Journal of Science and Technology, Transactions A: Science - Tập 43 - Trang 457-464 - 2017
K. Machethe, A. P. I. Popoola, V. S. Aigbodion, O. M. Popoola
In the research study, incorporation of Cu with hard SiC and Ni micron-sized particles was applied in the fabrication of a multifunctional copper-based metal matrix composite using spark plasma sintering. The developed spark plasma-sintered Cu–xNi and Cu–xNi–xSiC composite charateristics were studied by conducting morphological analysis, electrochemical, microhardness, and densification tests. Ana...... hiện toàn bộ
Physical Aspects of MHD Nonlinear Radiative Heat Flux in Flow of Thixotropic Nanomaterial
Iranian Journal of Science and Technology, Transactions A: Science - Tập 43 - Trang 2043-2054 - 2019
Tasawar Hayat, Madiha Rashid, M. Ijaz Khan, Ahmed Alsaedi
Here magnetohydrodynamic nanomaterial flow of thixotropic fluid is addressed. Electrically conducting fluid is considered. Stagnation-point flow toward variable thicked surface is addressed. Soret and Dufour effects are retained. Formulation is based on Brownian and thermophoresis diffusions. In addition, nonlinear thermal heat flux and convective boundary conditions are also taken into account. T...... hiện toàn bộ
Peristaltic Transport of MHD Walters B Fluid Through Porous Medium with Heat Transfer
Iranian Journal of Science and Technology, Transactions A: Science - Tập 41 - Trang 489-504 - 2017
K. Ramesh, M. Devakar
This paper is devoted to the study of the peristaltic flow of a magnetohydrodynamic Walters B fluid through porous medium in a vertical asymmetric channel with heat transfer. The flow is investigated in the wave frame of reference moving with constant velocity with the wave. The non-linear governing partial differential equations are solved using perturbation technique by taking wave number as a s...... hiện toàn bộ
Total Restrained Geodetic Number of Graphs
Iranian Journal of Science and Technology, Transactions A: Science - Tập 41 - Trang 473-480 - 2017
Hossein Abdollahzadeh Ahangar, Maryam Najimi
A geodetic set S in a graph G is called a total restrained geodetic set if the induced subgraphs G[S] and $$G[V-S]$$ have no isolated vertex. The minimum cardinality of a total restrained geodetic set in G is the total restrained geodetic number ...... hiện toàn bộ
Uniformly Convergent Numerical Method for Singularly Perturbed Time Delay Parabolic Problem with Two Small Parameters
Iranian Journal of Science and Technology, Transactions A: Science - Tập 43 - Trang 2373-2383 - 2019
L. Govindarao, Subal Ranjan Sahu, Jugal Mohapatra
This article discusses the numerical solution of one dimensional parabolic convection-reaction-diffusion time delay problem with two small parameters. For the discretization of the time derivative, we use the implicit Euler scheme on a uniform mesh and for the spatial discretization, we use the upwind difference scheme on the Shishkin type meshes (standard Shishkin mesh, Bakhvalov–Shishkin mesh). ...... hiện toàn bộ
Discrimination of HIV-1 and HIV-2 Reverse Transcriptase Proteins Using Chou’s PseAAC
Iranian Journal of Science and Technology, Transactions A: Science - Tập 42 - Trang 1805-1811 - 2017
Mandana Behbahani, Hassan Mohabatkar, Mokhtar Nosrati
Reverse transcriptase (RT) is an important enzyme for retrovirus replication in susceptible target cells. RT of HIV-1 is one of the key targets for anti-HIV drugs. In contrast, HIV-2 RT reveals a basic resistance to non-nucleoside RT inhibitors (NNRTIs). In the present study, a comparison of different aspects of RT proteins in HIV-1 and HIV-2 such as pseudo amino acid composition (PseAAC), convent...... hiện toàn bộ
Immobilization of Horseradish Peroxidase on Modified Cellulose Carriers via Hydrophobic Interactions: Catalytic Properties and Stability
Iranian Journal of Science and Technology, Transactions A: Science - - 2020
Sasa Savic, Sanja Petrovic, Sanela Savic, Zivomir Petronijevic
Cellulose is one of the most common biopolymers on earth with well-known non-toxic, biocompatible, and environmentally friendly properties. Structural and chemical properties of cellulose fibers give additional opportunities for surface modification of cellulose and its use as a carrier for immobilization of various bioactive compounds, including enzymes. For the proposes of horseradish peroxidase...... hiện toàn bộ
Numerical Solutions of the KdV Equation Using B-Spline Functions
Iranian Journal of Science and Technology, Transactions A: Science - - 2017
Mehrdad Lakestani
A numerical technique based on the finite difference and collocation methods is presented for the solution of Korteweg–de Vries (KdV) equation. The integration relations between any two families of B-spline functions are presented and are utilized to reduce the solution of KdV equation to the solution of linear algebraic equations. Numerical simulations for three test examples have been demonstrat...... hiện toàn bộ
Identification Problem of a Leading Coefficient to the Time Derivative of Parabolic Equation with Nonlocal Boundary Conditions
Iranian Journal of Science and Technology, Transactions A: Science - Tập 43 - Trang 1227-1233 - 2018
Fatma Kanca, Vishnu Narayan Mishra
In this study, the problem of determining the time-dependent leading coefficient to the time derivative of heat equation with nonlocal boundary and integral addition conditions is considered. The existence and uniqueness of a solution of the inverse problem under considerations are established. Some results on the numerical solution with an example are presented.
Radioactive Decay of Rutherfordium
Iranian Journal of Science and Technology, Transactions A: Science - Tập 44 Số 4 - Trang 1231-1235 - 2020
Manjunatha, H. C., Sridhar, K. N.
Rutherfordium is the synthetic and unstable element. It undergoes different radioactive decays such as alpha decay, beta decay, proton decay and spontaneous fission. In the present work, we have studied the competition between different decay modes such as alpha decay, beta decay, cluster decay, proton decay and spontaneous fission of Rutherfordium. By studying the competition between different de...... hiện toàn bộ
Tổng số: 869   
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 10