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Computation of Protection Zone of a Lightning Rod Using Method of Moments and Monte Carlo Integration Technique

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Journal of Electromagnetic Analysis and Applications 2011年第4期3卷 118-121页

作者： Abhay Srivastava Ankhuri Dubey Shradha Shekhar mrinal mishra 不详

An accurate determination of lightning protection zone is an important issue in the analysis and design of an appropri-ate lightning protection system. This paper presents a fast and accurate protection zone determination methodology for metallic lightning rod. The methodology is based on Quasi Monte Carlo Integration technique applied to Method of Moments (MoM) solution of Integral Equations. As an example, solution of the integral equation for unknown charge distribution on lightning rod is obtained. The electric field in the region surrounding the rod is then computed and the protection zone plotted accordingly. The effect of the thickness of the rod on the protection zone is also studied.

关键词： Lightning Rod Quasi Monte Carlo Integration Method of Moments Protection Zone

Dependence of Plasma Parameters on Plate Separation and Filament Location in a Double Plasma Device

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Journal of Modern Physics 2012年第9期3卷 1002-1008页

作者： Monojit Chakraborty Bidyut Kumar Das mrinal Kumar mishra Mainak Bandyopadhyay Centre of Plasma Physics—Institute for Plasma Research Tepesia India ITER-India Institute for Plasma Research Gandhinagar Gujarat India

A pair of stainless steel (ss) plates separates the source and target regions of a double plasma device. Two sets of tungsten filaments, placed at different distances from the ss plates, are then used to produce plasma alternately and the plasma parameters in the source and target regions for different discharge voltage, discharge current and plate separation are measured using Langmuir probes. It is found that plasma density and electron temperature are considerably affected and respond differently to changes in the plate separations and the position of the filaments.

关键词： Filament Location Plasma Parameters Double Plasma Device

New insights into spexin and pituitary adenylate cyclase-activating polypeptide(PACAP)in regulating fish reproduction

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Aquaculture and Fisheries 2024年第3期9卷 411-416页

作者： Ashis Saha mrinal Samanta Hirak kumar Barman Shiba Shankar Giri Division of Fish Nutrition and Physiology ICAR-Central Institute of Freshwater AquacultureKausalyagangaBhubaneswarOdisha751002India Division of Fish Health Management ICAR-Central Institute of Freshwater AquacultureKausalyagangaBhubaneswarOdisha751002India Division of Fish Genetics and Biotechnology ICAR-Central Institute of Freshwater AquacultureKausalyagangaBhubaneswarOdisha751002India

Reproduction is one of the most crucial physiological processes for the continuation of the generation of any *** are one of the most divergent aquatic *** reproductive neuro-endocrine regulatory studies are limited to only few *** regulation is a finely tuned complex mechanistic pathways,involving mainly hypothalamic-pituitary-gonad(HPG)*** the HPG axis,gonadotropin-releasing hormone(GnRH)modulates the synthesis and release of pituitary gonadotropins,which act on the gonads to stimulate steroidogenesis and *** recently,several novel neuropeptides,associated with reproductive regulation,have been ***(SPX),a novel neuropeptide coevolved with the galanin/kisspeptin family,has been identified as a regulator of the species-specific reproductive processes in *** adenylate cyclase-activating polypeptide(PACAP)is another novel member of the secretin-glucagon peptide family that functions as a hypophysiotropic factor involved in regulating pituitary hormone secretion in *** two emerging neuropeptides have pleiotropic functions,but information regarding their exact roles in fish reproduction is very *** updated overview of the mechanistic reproductive functions of these two new neuropeptides are highlighted in this review.

关键词： insight continuation exact

Compromising Solution of Geometric Programming Problem with Bounded Parameters

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Journal of the Operations Research Society of China 2017年第3期5卷 377-390页

作者： mrinal Jana Geetanjali Panda University of Petroleum and Energy Studies Dehradun 248007India Department of Mathematics Faculty of MathematicsIndian Institute of Technology KharagpurKharagpur 721302West BengalIndia

This paper addresses a geometric programming problem,where the objective function and constraints are interval-valued *** concept of acceptable feasible region is introduced,and a methodology is developed to transform this model to a general optimization problem,which is free from interval ***ship between the solution of the original problem and the transformed problem is *** methodology is illustrated through numerical *** by the proposed method and previous methods are analyzed.

关键词： Interval-valued function Partial ordering Nonlinear programming Geometric programming Decision making

DEAD-box RNA helicases with special reference to p68:Unwinding their biology,versatility,and therapeutic opportunity in cancer

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Genes & Diseases 2023年第4期10卷 1220-1241页

作者： Shaheda Tabassum mrinal K.Ghosh Cancer Biology and Inflammatory Disorder Division Council of Scientific and Industrial Research-Indian Institute of Chemical Biology(CSIR-IICB)TRUE CampusSalt LakeKolkata 700091India

In the era of advancement,the entire world continues to remain baffled by the increased rate of progression of *** has been an unending search for novel thera-peutic targets and prognostic markers to curb the oncogenic *** DEAD-box RNA he-licases are a large family of proteins characterized by their evolutionary conserved D-E-A-D(Asp-Glu-Ala-Asp)domain and merit consideration in the oncogenic *** perform multidimensional functions in RNA metabolism and also in the pathology of *** bio-logical role ranges from ribosome biogenesis,RNA unwinding,splicing,modification of second-ary and tertiary RNA structures to acting as transcriptional coactivators/repressors of various important oncogenic *** also play a crucial role in accelerating oncogenesis by pro-moting cell proliferation and ***5(p68)is one of the archetypal members of this family of proteins and has gained a lot of attention due to its oncogenic *** is found to be overexpressed in major cancer types such as colon,brain,breast,and prostate *** exhibits its multifaceted nature by not only coactivating genes implicated in cancers but also mediating crosstalk across major signaling pathways in ***,in this review,we aim to illustrate a comprehensive overview of DEAD-box RNA helicases especially p68 by focusing on their multifaceted roles in different cancers and the various signaling pathways affected by ***,we have also briefly discoursed the therapeutic interventional approaches with the DEAD-box RNA helicases as the pharmacological targets for designing in-hibitors to pave way for cancer therapy.

关键词： Cancer DDX5 DEAD-box RNA helicases Gene expression Oncogene Signaling Therapy Transcription factor

Survey of control techniques to alleviate repercussions of shock-wave and boundary-layer interactions

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Advances in Aerodynamics 2022年第1期4卷 569-598页

作者： Tamal Jana mrinal Kaushik Department of Aerospace Engineering JAIN(Deemed-to-be University)Bangalore560069India Department of Aerospace Engineering Indian Institute of Technology KharagpurKharagpur721302India

The primary focus of the present survey is to categorize the results of various investigations on the Shock/Boundary-Layer Interactions(SBLIs),their repercussions,and the effective ways to control *** interactions of shock waves with the boundary layer are an important area of research due to their ubiquity in several applications ranging from transonic to hypersonic ***,there is a need for a detailed inspection to understand the phenomena to predict its characteristics with certain *** this in mind,this article presents some key features of the physical nature of SBLIs,their consequences,and the control techniques in a sequential manner;in particular,the passive control techniques for the supersonic and hypersonic intakes are reviewed in detail.

关键词： Oblique shock Boundary layer Separation bubble Surface bump Porous cavity Micro-vortex generator(MVG) Plasma jet

A simple chemical method for the synthesis of Cu^(2+) engrafted MgAl_(2)O_(4) nanoparticles: Efficient fluoride adsorbents, photocatalyst and latent fingerprint detection

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Journal of Environmental Sciences 2020年第2期32卷 301-315页

作者： Arnab Mukherjee mrinal KAdak Prasanta Dhak Debasis Dhak Nanomaterials Research Lab Department of ChemistrySidho-Kanho-Birsha UniversityPurulia 723104India Department of Chemistry Techno India UniversityKolkata 700091India

An adaptable, energy efficient chemical process is employed to synthesize Cu^2+engrafted MgAl2O4 nanoparticles(Mg1-xCuxAl2O4, x = 0, 0.1, 0.3, 0.5 abbreviated as MCA0, MCA1, MCA3,and MCA5 respectively), using chelating ligand and the calcination temperature was determined by the thermogravimetric analysis of the precursor *** acted as good fluoride adsorbent in the presence of co-ions, different pH(2–11) via chemisorption revealed from Fourier-transform infrared spectroscopy(FTIR) and photodegraded Methylene Blue(MB).The satisfactory results were for MCA1(specific surface area 25.05 m^2/g) with 97%fluoride removal at pH 7.0 for the 10 mg/L initial fluoride concentration for 1.5 g/L adsorbent dose with 45 min contact time obeying the Langmuir isotherm model with negative thermodynamic parameters and 4 mmol of MCA3 with 98.51% photodegradation for 10-5 mol/L MB solution obeying pseudo-second-order and pseudo-first-order kinetics *** proposed photodegradation mechanism of MB was established by the FTIR and high-performance liquid chromatography(HPLC) *** nanoparticles are cubic, estimated through X-ray diffraction(XRD) and transmission electron microscopy(TEM) *** band gap energies, grain size, and the effective working pH were estimated by diffuse reflectance spectra(DRS), scanning electron microscope(SEM), and zero-point potential analysis respectively.A soil candle with MCA1 also fabricated for the household purpose and tested with some fluorinated field *** MCA3 was able to enhance the latent fingerprint on smooth surfaces.

关键词： Fluoride adsorbent Photocatalysis Mechanism Fingerprint detection Kroger-Vink notation Soil candle

Preparation of reduced sensitivity co-crystals of cyclic nitramines using spray flash evaporation

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Defence Technology（防务技术） 2020年第1期16卷 188-200页

作者： mrinal Ghosh AKSikder Shaibal Banerjee MBTalawar NSikder High Energy Materials Research Laboratory Pune 411021India Defence Institute of Advanced Technology Pune 411025India

The present day weapon technology demands novel energetic materials that exhibit simultaneous high explosive yield and reduced *** article demonstrates application of spray evaporation to prepare reduced sensitive co-crystals of high performance nitramine explosives like HMX and CL-20 with a relatively less insensitive explosive 1,1-diamino-2,2-dinitroethylene or *** intermolecurar hydrogen bonding in FOX-7 is responsible for limited solubility in nost of o rganic *** solubility differences of FOX-7 with HMX and CL-20 restricts ifs co-crystallization through classical methods that yields thermodynamically favorable *** flash evaporation,a kinetic crystallization method,has been therefore adopted and could successfully produce CL-20/FOX-7(2:1) and HMX/FQX-7(4:1) *** fine powdered materials obtained were characterized by SEM,powder XRD,Raman spectro scopy,DSC-TGA *** Raman spectra showed consistent occurrence of spectral features indicating stoichiometric co-existence of ingredients in the crystal *** analysis showed absence of all thermally assisted solidsolid phase transformation in the co-crystals as they were observed in pristine *** thermal stability calculated in terms of activation barrier fordecomposition,revealed the CL-20/FOX-7 co-crystal to be interlediately stable on comparison to their constituents while,the HMX/FOX-7 co-crystal is more *** to pure HMX and CL-20,both the co-crystals have shown higher insensitivity to impact force,suggesting them to be suitable for future generation insensitive munitions.

关键词： Cyclic nitramine Solubility Spray evaporation Co-crystal Reduced sensitivity

Multiresolution state-space discretization for Q-Learning with pseudorandomized discretization

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控制理论与应用（英文版） 2011年第3期9卷 431-439页

作者： Amanda LAMPTON John VALASEK mrinal KUMAR Systems Technology Inc.13766 S.Hawthorne BlvdHawthorneCA 90250U.S.A. Department of Aerospace Engineering Texas A&M University Department of Mechanical & Aerospace Engineering University of Florida

A multiresolution state-space discretization method with pseudorandom gridding is developed for the episodic unsupervised learning method of *** is used as the learning agent for closed-loop control of morphing or highly reconfigurable *** paper develops a method whereby a state-space is adaptively discretized by progressively finer pseudorandom grids around the regions of interest within the state or learning space in an effort to break the Curse of *** of the method is demonstrated with application to the problem of a morphing airfoil,which is simulated by a computationally intensive computational fiuid dynamics *** setting the multiresolution method to define the region of interest by the goal the agent seeks,it is shown that this method with the pseudorandom grid can learn a specific goal within ±0.001 while reducing the total number of state-action pairs needed to achieve this level of specificity to less than 3000.

关键词： Reinforcement learning Morphing Random grid