Search
1368 articles for “Calculations”
-
Geomorphological Change Analysis of Mahanadi Estuary and Hukitola Island of Odisha: A Geospatial Approach
Abstract: Hukitola Island is situated in the north of Mahanadi river delta system in Odisha which is protected by a barrier island. The study area is Mahanadi estuary in the Kendrapara district which situated 20°16ʹ18.443ʹʹN to 20°32ʹ22.094ʹʹN latitude and 86°35ʹ25.115ʹʹE to 86°49ʹ38.818ʹʹE longitude in Kujanga block of Jagatsinghpur district and Mahakalpada block of Kendrapara district and the Hukitola Island which is situated in the Mahakalpada block. The objective of the study …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 6, Issue 2, 2017 · pp. 30–37 Read article
-
Electron Beam and Gamma Radiation Dose Dependency on the Degradation Products of Polytetrafluoroethylene (PTFE)
Abstract: AbstractGamma radiation induced degradation phenomena of polytetrafluoroethylene (PTFE) in the form of granules has been studied. The Electron Spin Resonance (ESR) technique was used to study radical generation and behavior under different conditions. The ESR spectra of PTFE irradiated at low or very high doses of irradiation were doublets, characteristic of peroxy radicals. Similarly spectra at different temperatures are also doublets. In order to study nature of free radicals, the …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 104–114 Read article
-
Normalized Difference of Polinsar Coherence for Classification of Earth Covers
Abstract: The use of the interferometric SAR is extremely urgent for conditions of Siberia, nearly accessible and often covered by clouds. The polarimetric radar interferometry (PolInSAR) makes it possible to analyze the coherence of interferometric couples that provides additional information. This work makes an attempt to use a difference of polarimetric coherence value for the different types of classifications of the earth’s surface. As the processing method, it is proposed to …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 1, Issue 1-3, 2012 · pp. 32–41 Read article
-
Study of Effect of Shape, Size and Symmetry on Electronic States of Some Three-dimensional Structures in Mesoscopic Size Regime
Abstract: This study presents theoretical study of effect of size and symmetry of different shaped three-dimensional GaAs structures in mesoscopic size regime. The effective mass Schrӧdinger equation is used in various shapes and its solution are modified as a function of volume and aspect ratio of structures. The calculated energy eigenvalues for square prism, equilateral prism, regular tetrahedral, cylindrical and spherical are comparatively analyzed to observe the effect of shape, size …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 1, 2019 · pp. 26–36 Read article
-
Automated Vessel Segmentation of Retinal Vessels using Hybrid Region Information
Abstract: AbstractRecent researches state that the categorization of retinal vessels into artery/vein (A/V) is a critical phase for automating the detection of vascular adjustments and for the calculation of function symptoms related to numerous systemic illnesses which includes diabetes, high blood pressure, and different cardiovascular situations. This paper affords an automatic method for A/V class, primarily based on the evaluation of a graph extracted from the retinal vasculature. The proposed method …
Published in Research & Reviews : Journal of Statistics · Vol. 7, Issue 3, 2018 · pp. 28–36 Read article
-
Quark Contribution to the Magnetic Moments of Hypernuclei with Closed Core +Λ Configuration
Abstract: Abstract: We have estimated the magnetic moments of these nuclei in the Hybrid Quark Model. When the Λ-hyperon forms a six-quark bag with the core nucleons, the Schmidt values get modified. In the case of hypernuclei with closed core+configuration, the quark correction ranges between 0.1 to 2.1 %, the deviation being largest for. Earlier studies have shown that the comparison of predicted magnetic moments, with those of others calculations results …
Published in Research & Reviews : Journal of Physics · Vol. 7, Issue 3, 2018 · pp. 102–107 Read article
-
Laser stimulated downward combustion propagation phenomenon
Abstract: Enhanced energy requirement has necessitated active research efforts to understand combustion behaviour in presence of alternative energy sources. In the last five decades, emphasis on combustion focuses on two aspects viz., improving quality of combustion and addressing the risks/hazards. With recent advancement, an aspect which is researched upon is the combustion behaviour in the presence of laser flow. Their applications pertain to propulsion, energy generation, artillery, fire safety and defence …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 9, Issue 1, 2020 · pp. 32–43 Read article
-
Some Asymptotic Power Points for Testing the Parameters of Two Generalized Uniform Distributions
Abstract: In this paper, after getting the general form of the power functions for testing the one-sided and two-sided tests for generalized uniform distribution. Power points of some of the power functions of asymptotic tests are calculated and presented. The asymptotic tests for testing the parameters of generalized uniform distribution requires the conditional distribution of the complete sufficient statistic of the parameters of interest and also that of the nuisance parameter. …
Published in Research & Reviews : Journal of Statistics · Vol. 8, Issue 2, 2019 · pp. 29–33 Read article
-
Excess Acoustical Study of Binary Liquid Mixture with Experimental Parameters at Different Temperatures
Abstract: Excess acoustical parameters such as excess ultrasonic velocity (UE), excess acoustic impedance (ZE), excess Molar Volume (VmE), excess free length (LfE) and excess adiabatic compressibility (bE) have been discussed between the component molecules in terms of their intermolecular interactions of the binary liquid mixture containing Aniline with Toluene from temperatures T = 303.15 to 318.15 K. These excess parameters have been calculated from the values of densities (r), ultrasonic velocities …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 2, 2019 · pp. 101–107 Read article
-
Energy-Momentum Dependent Potentials and np Scattering
Abstract: Energy-dependent equivalent local potential corresponding to a rank 2 nonlocal interaction isconstructed for the partial wave 0 and the higher partial wave equivalent localinteractions are developed by exploiting the formalism of super symmetry formalism. Themerit of our constructed potentials is judged through a model calculation. Our results are ingood agreement with standard data.Keywords: Equivalent local potential, non-local potential, scattering phase shifts, super symmetry formalismCite this ArticleAshwini Kumar Behera, …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 3, 2019 · pp. 1–9 Read article
-
Electrical Properties of Znx Mg (1-x)TS Single Crystals
Abstract: Non-linear optics plays an important role in emerging photonic and optoelectronic technologies. In the present study semi-organic mixed crystals of Znx Mg (1-x) TS for various values of x viz. 0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9 and 1 by slow evaporation technique. The grown crystals were characterized by EDS, XRD and Electrical measurements like capacitance measurement and loss factor using ALIGANT LCR meter for various values …
Published in Research & Reviews : Journal of Physics · Vol. 8, Issue 2, 2019 · pp. 83–88 Read article
-
Solving Problems Arising during the Monocrystals Growth in Microgravity Using Controlled Vibration
Abstract: Earlier studies of the vibration effect on a vessel with a fluid with gas bubbles dissolved in it permitted to establish the localization and stable position of the "swarm" of gas bubbles at a certain level of fluid in the vessel, corresponding to a certain frequency and vibration acceleration, as well as the volume of the "swarm" of gas bubbles. Controlling the "swarm" of gas bubbles in a fluid by …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 10, Issue 1, 2021 · pp. 25–40 Read article
-
Estimation and Projection of Urban Population of India and China
Abstract: AbstractThe world urban population is expected to be double by 2050, increasing from 3.6 billion in 2011 to 6.3 billion in 2050 (UN, 2011). The urban population of India and China increasing exponentially over period of time the growth of urban population of India is slower than China after 1981 census. The urban population is projected with the help of past data. There are two types of approaches for calculating …
Published in Research & Reviews : Journal of Statistics · Vol. 2, Issue 2, 2013 · pp. 16–22 Read article
-
On the Velocity Perturbation of Fragments Resulting From In-orbit Satellite Fragmentation
Abstract: Fragmentation event resulting from in-orbit breakup of a satellite spawn multifarious debris particles which emanate from the source resulting in the distribution of velocities. However, the fragments generated from the event undergo certain perturbations in their velocities under the influence of the intensity and cause of the event. Therefore, magnitudes and directions of the velocity perturbations indicate the nature and intensity of the event. The work in the present manuscript …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 10, Issue 2, 2021 · pp. 22–31 Read article
-
Measures of Location for Imprecise Data
Abstract: AbstractStatistical analysis is usually done on data sets that contain precise information. However, data obtained may not be precise always. This may be due to vagueness in the process of measurement itself or due to the values being expressed in linguistic terms. Data that are not precise are referred to as imprecise data or fuzzy data. Developing statistical measures for imprecise data has been pursued by researchers during the past …
Published in Research & Reviews : Journal of Statistics · Vol. 2, Issue 3, 2013 · pp. 35–40 Read article
-
Multipole Magnetic Field Lines Interaction of Neutron Stars
Abstract: In this paper, we present the magnetic field of the collapsed core during a massive star supernova explosion, resulting from the conservation of magnetic flux, which forms a strong magnetic fields (B∽1013 G) Neutron stars. The vector potential from moving electric charge Q uniformly distributed over the surface of the spherical Neutron star of radius R and the multipole magnetic field have calculated. The interaction between the dipole magnetic field …
Published in Research & Reviews : Journal of Physics · Vol. 9, Issue 2, 2020 · pp. 6–15 Read article
-
Nuclear Hulthén potentials for F and G partial waves
Abstract: In the past few decades, several investigation have been made and at the same time a number of theoretical models have also been projected for the nucleon-nucleon scattering in the low and intermediate energy range. These phenomenological models involve large number of free parameters to be fitted to reproduce the physical observables. In contrast to these potentials a two-term four parameter nuclear Hulthén type interaction is proposed to describe the …
Published in Research & Reviews : Journal of Physics · Vol. 10, Issue 2, 2021 · pp. 31–37 Read article
-
Understanding Geomagnetic Storms Through ACE/EPAM Data in the Recent Solar Cycle
Abstract: We share our research on the effects of geomagnetic storms on Earth's climate throughout the solar cycle. We use the Kp index value from ACE and several other observatories to comprehend the impact of the geomagnetic storm in this instance. A geomagnetic storm is indicated by a value of 5 or higher on the K-index, which uses an integer between 0 and 9 to quantify disturbances in the horizontal component …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 12, Issue 2, 2023 · pp. 35–42 Read article
-
Design & Implementation of Radar for Air Defence Security & Surveillance System
Abstract: With increasing threat from different countries, India must develop a strong defensive barrier againstthem. The emerging technology in war ammunition makes us one of the most well-armed countries in the world.One of the most used weapons is missiles, which were extensively developed under the guidance of Dr. APJAbdul Kalam, the architect of IGMDP (Integrated Missile Development Program). Whatever may be thetechnology it is appreciated only when human loss is avoided. …
Published in Research & Reviews : Journal of Space Science & Technology · Vol. 12, Issue 3, 2023 · pp. 16–22 Read article
-
Statistics: The Measurement of Uncertainty Data
Abstract: This paper takes a broad look at statistics. Statistics is defined as the study of uncertainty, according to some. The numerous demonstrations that uncertainties can only combine according to probability calculus rules are compiled. The probability, it is suggested, are subjective. The significance of likelihood and exchangeability is clarified. Because inference is only useful if it can be applied, the addition of utility to decision analysis is related to risk …
Published in Research & Reviews : Journal of Statistics · Vol. 11, Issue 1, 2022 · pp. 7–9 Read article