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Magneto-thermo-elastic waves in an infinite perfectly conducting elastic solid with energy dissipation

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Applied Mathematics and Mechanics(English Edition) 2009年第2期30卷 221-228页

作者： Payel Das mridula Kanoria Netaji Subhash Engineering College Technocity Police Para Panchpota Department of Applied Mathematics University of Calcutta

The generalized thermo-elasticity theory, i.e., Green and Naghdi （G-N） Ⅲ theory, with energy dissipation （TEWED） is employed in the study of time-harmonic plane wave propagation in an unbounded, perfectly electrically conducting elastic medium subject to primary uniform magnetic field. A more general dispersion equation with com- plex coefficients is obtained for coupled magneto-thermo-elastic wave solved in complex domain by using the Leguerre＇s method. It reveals that the coupled magneto-thermoelastic wave corresponds to modified dilatational and thermal wave propagation with finite speeds modified by finite thermal wave speeds, thermo-elastic coupling, thermal diffusivity, and the external magnetic field. Numerical results for a copper-like material are presented.

关键词： generalized thermoelasticity magneto-thermo-elastic wave energy dissipation

Effects of Main-chain and Chain-ends on the Organogelation of Stearoyl Appended Pendant Valine Based Polymers

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Chinese Journal of Polymer Science 2019年第9期37卷 903-911页

作者： mridula Nandi Swagata Pan Dipannita Ghosh Priyadarsi De Polymer Research Centre and Centre for Advanced Functional Materials Department of Chemical Sciences Indian Institute of Science Education and Research Kolkata

In this work, we investigated the effect of hydrophobic interactions between the polymeric backbone and chain-end groups on the self-assembly pathway of stearoyl appended side-chain valine（Val）-based poly（methacrylate/acrylate） homopolymers in different organic hydrocarbons. Gelation studies conducted revealed that while polymers with polyacrylate as backbone induces gelation in several organic hydrocarbons, polymers with polymethacrylate in the main-chain significantly hinders macroscopic gelation. Morphology of the organogels was analysed by field emission scanning electron microscopy（FESEM）, and mechanical strengths of the organogels were determined by rheological measurements. Reversible addition-fragmentation chain transfer（RAFT） polymerization chain transfer agents（CTA）s, [R1―S―C=（S）―S―R2] with different ―R1 and ―R2 groups, have been employed to study the effect of structural variation at the chain-end on macroscopic assembly mechanism. We found that the additional interactions between terminal groups via hydrogenbonding or π-π stacking interactions or both help to build up the self-assembly pathway and thereby produces mechanically stable organogels.

关键词： Organogelation Hydrophobic interactions Poly(methacrylate/acrylate) backbone RAFT polymerization Self-assembly

GeDiPNet: Online resource of curated gene-disease associations for polypharmacological targets discovery

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Genes & Diseases 2023年第3期10卷 647-649页

作者： Indra Kundu mridula Sharma Ram Shankar Barai Khushal Pokar Susan Idicula-Thomas Biomedical Informatics Centre Indian Council of Medical Research-National Institute for Research in Reproductive and Child HealthMumbai 400012India

There are numerous online databases dedicated to genes associated with human *** redundancy and lack of consistency of disease terms in these databases pose a significant impediment in high throughput data *** address this,we developed GeDiPNet by compiling data available on gene-disease associations from six popular open access sources namely DisGeNET,1 ClinGen.

关键词： databases online analysis.

TORSIONAL OSCILLATION OF RIGID DISK IN INFINITE TRANSVERSELY ISOTROPIC ELASTIC CYLINDER

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Applied Mathematics and Mechanics(English Edition) 2006年第7期27卷 911-917页

作者： Sakti Pada Barik mridula Kanoria P.K.Chaudhuri Department of Applied Mathematics University of Calcutta 92 A.P.C. Road Kolkata-700 009 India

In the present analysis torsional oscillation of a rigid disk in an infinite transversely isotropic elastic cylinder is considered. The effects of anisotropy in the stress intensity factor are shown graphically.

关键词： torsional oscillation transversely isotropic material dual integral equation Fredholm integral equation contour integration

Cylindrical gate all around Schottky barrier MOSFET with insulated shallow extensions at source/drain for removal of ambipolarity:a novel approach

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Journal of Semiconductors 2017年第12期38卷 42-47页

作者： Manoj Kumar Yogesh Pratap Subhasis Haldar mridula Gupta R.S.Gupta Semiconductor Device Research Laboratory Department of Electronic ScienceUniversity of Delhi South CampusNew Delhi 110021India Department of Electronics Shaheed Rajguru College for Applied Sciences for Women University of DelhiNew Delhi 110021India Department of Physics Motilal Nehru CollegeUniversity of DelhiNew Delhi 110021India Department of Electronics and Communication Engineering Maharaja Agrasen Institute of TechnologyNew Delhi 110086India

In this paper TCAD-based simulation of a novel insulated shallow extension （ISE） cylindrical gate all around （CGAA） Schottky barrier （SB） MOSFET has been reported, to eliminate the suicidal ambipolar behavior （bias-dependent OFF state leakage current） of conventional SB-CGAA MOSFET by blocking the metal-induced gap states as well as unwanted charge sharing between source/channel and drain/channel regions. This novel structure offers low barrier height at the source and offers high ON-state current. The IoN/Iovr： of ISE-CGAA-SB-MOS- FET increases by 1177 times and offers steeper subthreshold slope （-60 mV/decade）. However a little reduction in peak cut off frequency is observed and to further improve the cut-off frequency dual metal gate architecture has been employed and a comparative assessment of single metal gate, dual metal gate, single metal gate with ISE, and dual metal gate with ISE has been presented. The improved performance of Schottky barrier CGAA MOSFET by the incorporation of ISE makes it an attractive candidate for CMOS digital circuit design. The numerical simulation is performed using the ATLAS-3D device simulator.

关键词： ATLAS-3D cylindrical gate all around dual metal gate insulated shallow extension Schottky barrier

Effectiveness of Behavioral Intervention among Congenital Heart Defect Children

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Journal of Psychological Research 2021年第2期3卷 23-28页

作者： mridula C Jobson Christ Academy Institute for Advanced Studies BengaluruIndia

Development in medical intervention has significantly decreased the mortality rates for children with complex congenital heart disease(CHD)but among these survivors with complex heart disease there occurs a unique pattern of neuro-developmental and neuropsychology impairment characterized social interaction impairment,impulsive Behavior,and impaired executive *** of behavioral problem is found significantly high in pediatric population with chronic illness than children with absence of chronic *** sample of 200 children with congenital heart defect was selected between age 4-8 years using multistage stratified sam*** childhood psychopathology measurement schedule(CPMS)by *** Malhotra was used for assessing Behavioral problems present in children with ***-Post experimental design was used to investigate the study and the results were statistically analyzed using paired T *** result revealed that the effectiveness of intervention program to retrain Behavior showed high *** increased survival rates,the aim of the intervention and research based on clinical practices gets a shift from short term medical assessment to long term assessment and intervention of morbidity.

关键词： Congenital heart defect Neuro-psychological retraining Neurodevelopment Behavioral and emotional retraining

Extraocular retinoblastoma in Indian children:clinical,imaging and histopathological features

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International Journal of Ophthalmology(English edition) 2013年第4期6卷 481-486页

作者： Sumita Sethi Neelam Pushker Seema Kashyap Sanjay Sharma mridula Mehta Sameer Bakhshi Saurbhi Khurana Supriyo Ghose Oculoplasty and Pediatric Ophthalmology Services Dr.Rajendra Prasad Centre for Ophthalmic SciencesAll India Institute of Medical Sciences Department of Ocular Pathology Dr.Rajendra Prasad Centre for Ophthalmic SciencesAll India Institute of Medical Sciences Department of Radiodiagnosis All India Institute of Medical Sciences Department of Medical Oncology Dr.B.R.Ambedkar Institute Rotary Cancer HospitalAll India Institute of Medical Sciences

AIMTo study eyes with extraocular dissemination (EORB), with the following aims: first to establish the mean lag period and to understand various reasons for delayed presentation, second to study their imaging profile... 详细信息

关键词： extraocular retinoblastoma imaging histopathological features

Azo-dye adsorption activity of iron(Ⅲ) loaded novolac-based network sorbents

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Chemical Reports 2019年第2期1卷 51-57页

作者： Samaresh Ghosh mridula Acharyya Department of Chemistry Bankura Sammilani College Kenduadihi Bankura 722102 West Bengal India.

Iron(Ⅲ) loaded novolac-based network adsorbents 1 and 2 were studied for efficient removal of azo-dye pollutants from aqueous solutions. The adsorption behavior was evaluated by using methyl orange and orange-G as model azo dyes. The effect of parameters such as contact time and initial dye concentration on the adsorption of azo dyes was studied. The results showed that loading of Fe(Ⅲ) onto the sorbent networks has noticeable effect on azo-dye sorption capacity. The adsorption equilibrium data were fitted to Freundlich isotherm model. Besides, the reusability of the dye loaded sorbents was investigated on adjusting pH of solutions.

关键词： adsorption novolac-based network iron(Ⅲ) loading azo-dye

PVA Based Polymer Electrolyte with Layered Filler Graphite for Natural Dye Sensitized Solar Cell

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Non-Metallic Material Science 2021年第1期3卷 10-14页

作者： Kumari Pooja Priyanka Chawla mridula Tripathi Department of Chemistry CMP Degree CollegeUniversity of AllahabadPrayagraj211002India

Graphite nanopowder is synthesized by mechanical method using ball mill and used as filler in polymer electrolyte film based on Polyvinyl alcohol(PVA)for application in natural dye sensitized solar cell(DSSC).In the present work dye sensitized solar cell has been assembled using electrolyte system composed of PVA as host polymer,ethylene carbonate as plasticizer,LiI:I2 as redox couple and graphite as filler;TiO2 modified with Copper oxide(CuO)photoanode in order to provide inherent energy barrier and natural cocktail dye as *** obtained solar cell conversion efficiency was about 3.2%with fill factor 52%using an irradiation of 100 mW/cm^(2) at 25℃C.

关键词： Polyvinyl alcohol DSSC Graphite Copper oxide Cocktail dye