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Propulsion and Power Research 2018年第3期7卷 257-267页

作者： Hari R.Kataria harshad R.patel Department of Mathematics Faculty of ScienceThe M.S.University of BarodaVadodara 390002GujaratIndia Applied Science&Humanities Department Sardar Vallabhbhai Patel Institute of TechnologyVasad 388306India

The present paper is concerned with the study of flow,heat and mass transfer characteristics in the unsteady natural convective magneto hydrodynamics Casson fluid flow past over an oscillating vertical *** governing partial differential equations are solved analytically using Laplace transform technique and numerically using Matlab *** of skin friction,Nusselt number and Sherwood number are *** features of the fluid flow,heat and mass transfer characteristics are analyzed by plotting graphs and the physical aspects are discussed in detail.

关键词： Magneto hydrodynamics Casson fluid Ramped temperature Skin friction Nusselt number Sherwood number

Effects of chemical reaction and heat generation/absorption on magnetohydrodynamic(MHD)Casson fluid flow over an exponentially accelerated vertical plate embedded in porous medium with ramped wall temperature and ramped surface concentration

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Propulsion and Power Research 2019年第1期8卷 35-46页

作者： Hari R.Kataria harshad R.patel Department of Mathematics.Faculty of Science The M.S.University of Baroda.Vadodara 390002India Applied Science&Humanities Depariment Sardar Vallabhbhai Pael Institute of TechnologyVasad 388306India

This article studies effects of heat generation/absorption and chemical reaction on the unsteady magnetohydrodynamic(MHD)Casson fluid flow past over exponentially accelerated vertical plate embedded in porous *** is assumed that the bounding plate has ramped temperature with ramped surface concentration and isothermal temperature with ramped surface *** phenomenon is modeled in the form of system of partial differential equations with initial and boundary *** goveming dimensionless equations are solved using Laplace transfom technique and expressions for velocity,temperature and concentration profiles are *** for skin friction,Nusselt number and Sherwood number are also derived and represented in tabular *** of pertinent parameters on velocity,temperature and concentration profiles are presented through graphically.

关键词： Magneto hydrody-namics Casson fluid Skin friction Nusselt number Sherwood number

碳纳米管阵列/热解炭复合材料的制备和表征（英文）

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新型炭材料 2014年第5期29卷 374-379页

作者： harshad patel L M Manocha S Manocha Institute of Research and Development Gujarat Forensic Sciences University Department of Materials Science Sardar Patel University

以甲烷为碳源,通过化学气相沉积和化学蒸汽渗透两步法将热解炭填充至碳纳米管阵列间的空隙而制备出碳纳米管阵列/热解炭复合材料。采用扫描电镜和拉曼光谱仪对样品的结构进行表征。结果表明,碳纳米管被热解炭填充和覆盖形成均相的复合膜... 详细信息

以甲烷为碳源,通过化学气相沉积和化学蒸汽渗透两步法将热解炭填充至碳纳米管阵列间的空隙而制备出碳纳米管阵列/热解炭复合材料。采用扫描电镜和拉曼光谱仪对样品的结构进行表征。结果表明,碳纳米管被热解炭填充和覆盖形成均相的复合膜,其密度增加4倍,同时热解炭已石墨化。

关键词：碳纳米管阵列化学气相沉积化学蒸汽渗透复合材料热解炭

Azeotropic mixture used for development and validation of Lornoxicam in bulk and its tablet dosage form by spectrophotometric method

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Journal of Pharmaceutical Analysis 2012年第4期2卷 306-309页

作者： Prajesh Prajapati Vipul Vaghela Deepak Rawtani harshad patel Jasmin Kubavat Dharmendra Baraiya Department of Pharmaceutical Analysis Institute of Research and DevelopmentGujarat Forensic Sciences UniversitySector-18ANr.Police bhavan A.R.College of Pharmacy and G.H.patel Institute of Pharmacy

A novel,safe,economic and sensitive method of spectrophotometric estimation has been developed using Azeoptropic mixture (water∶methanol:60∶40,v/v) for the quantitative determination of Lornoxicam,a practically water-insoluble ***,Lornoxicam stock solution was prepared in Azeoptropic *** showed maximum absorbance at 383 ***'s law was obeyed in the concentration range 4-24 μg/mL with regression coefficient of *** method was validated in terms of linearity (R2=0.999),precision (CV for intra-day and inter-day was 0.28 0.68 and 0.12-0.92,respectively),accuracy (98.03-100.59％ w/w) and *** method is simple,precise,accurate,sensitive and reproducible and can be used for the routine quality control testing of the marketed formulations.

关键词： Analgesic Chlortenoxicam Lornoxicam Oxicam Spectrophotometric Azeotropic mixture

Geometrical Dimensional Effect on Natural Frequency of Single Layer Graphene in Armchair Configuration

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Journal of Mechanical Engineering Research 2021年第2期4卷 45-51页

作者： harshad patel Manufacturing Engineering Department Central Institute of Petrochemicals Engineering&TechnologyAhmedabadGujaratIndia

Graphene has remarkable strength,such as yield strength and elastic *** dynamic behaviour of graphene sheet is affected by geometrical variation in atomic *** paper introduced graphene with armchair atomic structure for estimating fundamental natural *** presented analysis can be useful for the possible high frequency nanomechanical resonator *** analytical formulation,based on classical plate theory and continuum solid modelling based finite element method have been performed for estimation of fundamental natural frequencies of single layer graphene sheet(SGLS)with different boundary *** free edge and clamped edge boundary conditions have been *** simplifying analytical formulations,Blevins approach for dynamic solution has been adopted and for validating analytical *** finite element analysis of SLGS has been performed using ANSYS *** effect of variation in geometrical parameters in terms of width and length of SLGS has been analysed for realization of ultra-high frequency based nanomechanical resonator systems.

关键词： Single layer graphene sheet(SLGS) Size variation Fundamental natural frequency Finite element analysis

An efficient synthesis of 3'-quinolinyl substituted imidazole-5-one derivatives catalyzed by zeolite and their antimicrobial activity

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Chinese Chemical Letters 2012年第3期23卷 273-276页

作者： harshad G.Kathrotiya Nilav A.patel Ranjan G.patel Manish P.patel Department of Chemistry Sardar Patel UniversityVallabh Vidyanagar388120 GujaratIndia

A series of some new quinoline based imidazole-5-one derivatives have been synthesized by the fusion of oxazol-5-ones,various p-substituted anilines and zeolite in *** the derivatives were subjected to an in vitro ant... 详细信息

关键词： Imidazolinone Quinoline Zeolite Antimicrobial activity

Molecular iodine catalyzed synthesis of tetrazolo[1,5-a]-quinoline based imidazoles as a new class of antimicrobial and antituberculosis agents

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Chinese Chemical Letters 2012年第12期23卷 1367-1370页

作者： Divyesh C.Mungra harshad G.Kathrotiya Niraj K.Ladani Manish P.patel Ranjan G.patel Department of Chemistry Sardar Patel University

A series of some new tetrazolo[1,5-a]quinoline based tetrasubstituted imidazole derivatives 6a-i have been synthesized by a reaction of tetrazolo[ 1,5-a]quinoline-4-carbaldehyde 3a-d, benzil 4, aromatic amine 5a--c and ammonium acetate in the presence of iodine through one-pot multi-component reaction （MCR） approach. All the derivatives were screened for antimicrobial and antituberculosis activities and results worth further investigations.

关键词： Tetrazolo[1,5-a]quinoline Imidazole MCR Iodine Antimicrobial activity Antituberculosis activity

Management of Aluminium Phosphide Poisoning with a Holistic Approach at NHL Municipal Medical College and Hospital,Ahmedabad

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Journal of Forensic Science and Medicine 2022年第1期8卷 6-10页

作者： Dheeraj B.More Mahendra N.Wankhede harshad Malve Department of Cardiology Seth GS Medical College and KEM HospitalMumbaiMaharashtraIndia Department of Forensic Medicine HBT Medical College and Cooper HospitalMumbaiMaharashtraIndia Department of Pharmacology Vedanta Institute of Medical SciencesDahanuMaharashtraIndia

Background:Aluminium phosphide is a usual ingredient of rodenticide and its poisoning is a common cause of suicide in *** and symptoms of its toxicity are *** toxic effects are mainly due to liberation of phosphine gas which causes cell hypoxia due to inhibition of oxidative phosphorylation and results in circulatory *** and Objectives:Mortality with aluminium phosphide is high as there is no specific antidote available *** hence we need to explore holistic treatment approach to improve patient outcomes in aluminium phosphide *** and Methods:Present study discusses a holistic treatment approach to aluminium phosphide poisoning in this retrospective analysis of 100 cases from a tertiary care hospital in this ***:Around 65%patients survived due to the holistic treatment approach and correct treatment protocol with supportive ***:The aggressive and appropriate management with continuous hemodynamic monitoring and holistic treatment approach can reduce the mortality significantly in aluminium phosphide poisoning.

关键词： Aluminum phosphide toxicity holistic treatment rodenticide poisoning

Vanadium-Doped Magnesium Oxide Nanoparticles Formation in Presence of Ionic Liquids and Their Use in Photocatalytic Degradation of Methylene Blue

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Acta Metallurgica Sinica(English Letters) 2016年第3期29卷 253-264页

作者： harshad R.Patil Z.V.P.Murthy Department of Chemical Engineering S.V.National Institute of Technology R&D Division Hazira Manufacturing DivisionReliance Industries Limited

Magnesium oxide（MgO） is one of the metal oxides having unique properties with numerous potential industrial *** this study,MgO and vanadium-doped MgO nanoparticles were synthesized by sol–gel method in 1-butyl-3-methylimidazolium tetrafluoroborate [BMIM][BF_4] and 1-octyl-3-methylimidazolium tetrafluoroborate [OMIM][BF_4] ionic ***-doped MgO nanoparticles exhibited nanosphere and nanorod morphologies with 40–80 nm in particle size,primarily due to the influence of ionic liquids as demonstrated by high-resolution scanning electron microscopy and transmission electron *** of nanoparticles were also studied by thermal gravimetric analysis,X-ray diffraction and energy-dispersive X-ray *** ability of synthesized nanoparticles was evaluated for methylene blue（MB） in specially designed UV *** is found to be dependent on doping,and particle characteristics change due to the influence of ionic *** ionic liquid-assisted vanadium-doped MgO nanoparticles showed good reusability under UV irradiation and MB degradation ability under visible light.

关键词： Ionic liquid Vanadium pentoxide Magnesium oxide Sol–gel Photocatalytic activity

Environment friendly hydrothermal synthesis of carbon–Co3O4 nanorods composite as an efficient catalyst for oxygen evolution reaction

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Journal of Energy Chemistry 2017年第4期26卷 695-702页

作者： Amol R.Jadhav harshad A.Bandal Ashif H.Tamboli Hern Kim Department of Energy Science and Technology Smart Living Innovation Technology CenterMyongji UniversityYonginGyeonggi-do 17058Republic of Korea

The design of cost-effective, highly active catalysts for hydrogen energy production is a vital element in the societal pursuit of sustainable energy. Water electrolysis is one of the most convenient processes to produce high purity hydrogen. Cobalt-based catalysts are well-known electrocatalysts for oxygen evolution reaction（OER）. In this article, all these merits indicate that the present cobalt nanocomposite is a promising electrocatalyst for OER. C–CoO-nanorods catalyst with nanorod structure was synthesized by hydrothermal treatment of CoCl·6HO/dextrose/urea mixture at 180 °C for 18 h and then calcined at400 °C for 3.5 h. The role of dextrose percentage in solution to achieve the uniform coating of carbon on the surface of CoO-nanorods has been demonstrated. The prepared materials were characterized by X-ray diffraction（XRD）, X-ray photoelectron spectrum（XPS）, field emission scanning electron microscopy（FE-SEM）, high-resolution transmission electron microscopy（HR-TEM）, and Brunauer–Emmett–Teller instrument（BET）. Due to its unique morphology, the C–CoO-nanorods catalyst exhibited better activity than CoO-microplates catalyst for OER in 1 M KOH aqueous solution. The results showed a highly efficient, scalable, and low-cost method for developing highly active and stable OER electrocatalysts in alkaline solution.

关键词： Oxygen evolution reaction Overpotential Tafel slope Synergistic effect