Roushan Kumar

ORCID: 0000-0002-6010-7075
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About
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Research Areas
  • Thermoelastic and Magnetoelastic Phenomena
  • Elasticity and Wave Propagation
  • Numerical methods in engineering
  • Nonlocal and gradient elasticity in micro/nano structures
  • Composite Structure Analysis and Optimization
  • Ultrasonics and Acoustic Wave Propagation
  • Elasticity and Material Modeling
  • Thermal properties of materials
  • Composite Material Mechanics
  • Geophysical and Geoelectrical Methods
  • Aquatic Ecosystems and Phytoplankton Dynamics
  • Blockchain Technology Applications and Security
  • Advanced machining processes and optimization
  • Network Security and Intrusion Detection
  • Psychosomatic Disorders and Their Treatments
  • Numerical methods in inverse problems
  • Brucella: diagnosis, epidemiology, treatment
  • Food Supply Chain Traceability
  • Smart Systems and Machine Learning
  • vaccines and immunoinformatics approaches
  • Child Abuse and Related Trauma
  • Water Quality and Pollution Assessment
  • Fish Ecology and Management Studies
  • Bacteriophages and microbial interactions
  • Mechanical and Thermal Properties Analysis

Central University of South Bihar
2015-2025

University of Verona
2025

Galgotias University
2023-2024

Magadh University
2023-2024

All India Institute of Medical Sciences
2024

Babasaheb Bhimrao Ambedkar Bihar University
2023

Indian Institute of Technology Kanpur
2022

National Institute of Technology Nagaland
2020

Manipal Academy of Higher Education
2018

National Institute of Mental Health and Neurosciences
2008-2017

Abstract The human gut microbiota regulates estrogen metabolism through the “estrobolome,” collection of bacterial genes that encode enzymes like β‐glucuronidases and β‐glucosidases. These deconjugate reactivate estrogen, influencing circulating levels. estrobolome mediates enterohepatic circulation bioavailability estrogen. Alterations in composition function have been associated with estrogen‐related diseases breast cancer, enometrial polycystic ovarian syndrome (PCOS). This is likely due...

10.1002/mnfr.202300688 article EN Molecular Nutrition & Food Research 2024-02-11

While the world is still recovering from Covid-19 pandemic, monkeypox virus (MPXV) awaits to cause another global outbreak as a challenge all of mankind. However, pandemic has taught us lesson speed up pace viral genomic research for implementation preventive and treatment strategies. One important aspects MPXV that needs immediate insight its evolutionary lineage based on studies. Utilizing high-quality isolates GISAID (Global Initiative Sharing All Influenza Data) database, primarily...

10.1099/mgen.0.000987 article EN cc-by Microbial Genomics 2023-04-12

Background: Psychosis, particularly schizophrenia (SZ), is influenced by genetic and environmental factors. The neurodevelopmental hypothesis suggests that factors affect neuronal circuit connectivity during perinatal periods, hence causing the onset of diseases. In this study, we performed a genome-wide association study (GWAS) in sample first episode psychosis (FEP). Methods: A 147 individuals diagnosed with non-affective 102 controls were recruited assessed. After venous blood DNA...

10.3390/genes16040439 article EN Genes 2025-04-07

The present work concerns the size-dependent thermoelasticity with dual-phase-lag model proposed by Chandrasekharaiah and Tzou. In first part, we study Galerkin-type representation of solution field equations. Then, find fundamental solutions for steady vibrations second analyze effect strain gradient length parameter on propagation plane harmonic waves assigned frequency in an infinite space. We derive exact dispersion relation longitudinal waves. Several characterizations wave fields, like...

10.1177/10812865241304371 article EN Mathematics and Mechanics of Solids 2025-01-22

The present work is aimed at the study of thermoelastic interactions in an infinite medium with a cylindrical cavity context theory generalized thermoelasticity which heat conduction deformable bodies depends on two different temperatures—conductive temperature and dynamic temperature. surface assumed to be stress free subjected thermal shock. In order make comparison between two-temperature model one-temperature problem formulated basis models thermoelasticity: namely, Lord–Shulman unified...

10.1080/01495730802637183 article EN Journal of Thermal Stresses 2009-03-19

The present paper is concerned with the theory of two temperature thermoelasticity phase-lags in which heat conduction deformable bodies depends on distinct temperatures – conductive and thermodynamic temperature. A generalized law dual-phase-lag effects was proposed by Tzou (1995) for purpose considering delayed response times due to microstructural interactions transport mechanism. Recently, Quintanilla (2008) has combine this constitutive equation a proved that well-posed problem. In work...

10.1080/01495739.2010.550815 article EN Journal of Thermal Stresses 2011-03-05

The present work deals with a new problem of generalized thermoelasticity one relaxation time for an infinitely long and isotropic annular cylinder temperature dependent physical properties.The inner outer curved surfaces the are subjected to both mechanical thermal boundary conditions.A finite difference model is developed derive solution in which governing equations coupled non linear partial differential equations.The transient at any can be evaluated directly from model.In order...

10.12921/cmst.2009.15.02.169-176 article EN Computational Methods in Science and Technology 2009-01-01

The present article attempts to investigate thermoelastic damping (TED) of a microbeam resonator by employing the three-phase-lag (TPL) thermoelasticity theory proposed Roychoudhuri. An explicit formula TED has been derived and effects beam height, phase-lag parameters on have studied. Effects height phase-lags shown with numerical results. A comparison results corresponding type GN-III is also presented. It observed that predicts high-quality factor resonator’s sensitivity as compared TPL model.

10.1080/01495739.2018.1469061 article EN Journal of Thermal Stresses 2018-07-24

10.1016/j.camwa.2008.05.031 article EN publisher-specific-oa Computers & Mathematics with Applications 2008-08-16

The aim of the present work is to establish a variational principle convolutional type and reciprocal in context linear theory two-temperature generalized thermoelasticity, for homogeneous isotropic body.

10.1080/01495730903454678 article EN Journal of Thermal Stresses 2010-02-11

The present work is concerned with the effects of three-phase lags on thermoelastic interactions due to step input in temperature stress free boundary a cylindrical cavity an unbounded medium. problem studied context theory generalized thermoelasticity three phase (Roychoudhuri, [24 S. K. Roychoudhuri , On Thermoelastic Three-Phase-Lag Model J. Thermal Stresses vol. 30 pp. 231 – 238 2007 .[Taylor & Francis Online], [Web Science ®] [Google Scholar]]) and energy dissipation (Green Naghdi, [4...

10.1080/01495730903249185 article EN Journal of Thermal Stresses 2009-10-15

We establish the theory of domain influence for a potential-temperature disturbance under generalized thermoelasticity with three-phase-lag model. For finite time t > 0, it has been proved that potential due to displacement and temperature fields does not produce any disturbances outside bounded is dependent on support load, thermoelastic coupling constant phase-lag parameters. It shown present case reduces classical one relaxation parameter.

10.1080/01495739.2015.1040311 article EN Journal of Thermal Stresses 2015-05-21

Agriculture plays a vital role in the economical growth and development of any nation. Changing climatic condition have badly affected production agriculture products. Therefore, to improve quality quantity products, many new technologies are being developed practice smart which can adapt changing condition. In this paper, one such method is proposed. The simple internet thing based approach agriculture. proposed approach, hardware software setup used monitor important soil parameters from...

10.1109/sces50439.2020.9236764 article EN 2020-07-10

Abstract The aim of the present article is to study thermoelastic interactions in an infinite elastic medium with a cylindrical hole context generalized thermoelasticity III, recently developed by Green and Nagdhi [Citation1]. boundary assumed be stress free subjected ramp type heating. In order make comparison between this model other models, problem formulated on basis three different theories thermoelasticity, namely: extended proposed Lord Shulman [Citation2], without energy dissipation...

10.1080/01495730801912561 article EN Journal of Thermal Stresses 2008-03-24

The aim of the present paper is to study thermoelastic damping a micro-beam resonator in context generalized thermoelasticity theory with three-phase-lag (TPL). obtained by Laplace transform procedure as well finite-sine Fourier transformation. vibration responses deflection and thermal moment are for micro-beams simply supported isothermal ends. Initially, analytic solution amplitudes moment. It was observed that both attenuated frequency increased three-phase-lag. effects phase-lags on...

10.1142/s0219455419710056 article EN International Journal of Structural Stability and Dynamics 2019-05-31
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