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Numerical solution of time-fractional three-species food chain model arising in the realm of mathematical ecology

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International Journal of Biomathematics 2020年第2期13卷 53-74页

作者： ved prakash dubey Rajnesh Kumar Devendra Kumar Faculty of Mathematical and Statistical Sciences Shri RamswaroopMemorial University Lucknow-Deva Road Barabanki 225003Uttar PradeshIndia Department of Mathematics University of Rajasthan Jaipur 302004RajasthanIndia

T'his research paper implements the fractional homotopy analysis transform technique to compute the approximate analytical solution of the nonlinear three-species food chain model with time-fractional *** offered technique is a fantastic blend of homotopy analysis method(HAM)and Laplace transform(LT)operator and has been used fruitfully in the numerical computation of various fractional differential equations(FDEs).This paper involves the fractional derivatives of Caputo *** numerical solutions of this selected fractional-order food chain model are evaluated by making use of the associated initial *** is revealed by the adopting procedure that the more desirable estimation of the solution can be easily acquired through the calculation of some number of iteration terms only-a fact which authenticates the easiness and soundness of the suggested hybrid *** variations of fractional order of time derivative on the solutions for different specific cases have been depicted through graphical *** outcomes demonstrated through the graphs expound that the adopted scheme is very fantastic and accurate.

关键词： Three-species food chain model homotopy analysis transform method Laplace transform fractional order FDEs

Fractal dynamics and computational analysis of local fractional Poisson equations arising in electrostatics

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Communications in Theoretical Physics 2023年第12期75卷 12-18页

作者： Jagdev Singh Hassan Kamil Jassim Devendra Kumar ved prakash dubey Department of Mathematics JECRC UniversityJaipurRajasthanIndia Department of Mathematics Kyung Hee University26 Kyungheedae-roDongdaemun-guSeoul02447Republic of Korea Department of Computer Science and Mathematics Lebanese American UniversityBeirutLebanon Department of Mathematics Faculty of Education for Pure SciencesUniversity of Thi-QarNasiriyahIraq Department of Mathematics University of RajasthanJaipur-302004RajasthanIndia Faculty of Mathematical and Statistical Sciences Shri Ramswaroop Memorial UniversityBarabanki-225003Uttar PradeshIndia

In this paper,the local fractional natural decomposition method(LFNDM)is used for solving a local fractional Poisson *** local fractional Poisson equation plays a significant role in the study of a potential field due to a fixed electric charge or mass density *** examples with computer simulations are presented in this *** obtained results show that LFNDM is effective and convenient for application.

关键词： poisson equation local fractional natural transform adomian decomposition method local fractional derivative electrostatics fractal media

An efficient computational technique for time-fractional modified Degasperis-Procesi equation arising in propagation of nonlinear dispersive waves

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Journal of Ocean Engineering and Science 2021年第1期6卷 30-39页

作者： ved prakash dubey Rajnesh Kumar Jagdev Singh Devendra Kumar Faculty of Mathematical and Statistical Sciences Shri Ramswaroop Memorial UniversityLucknow-Deva RoadUttar Pradesh-225003India Department of Applied Science and Humanities Government Engineering CollegeNawadaDepartment of Science and TechnologyBihar-805122India Department of Mathematics JECRC UniversityJaipur-303905RajasthanIndia Department of Mathematics University of RajasthanJaipur-302004RajasthanIndia

In this paper,an efficient hybrid numerical scheme which is based on a joint venture of the q-homotopy analysis method and Sumudu transform is applied to investigate the time-fractional modified Degasperis-Procesi(DP)*** present study considers the Caputo fractional *** fractional order modified DP model is very important and plays a great role in study of ocean engineering and *** proposed scheme provides a beautiful opportunity for proper selection of the auxiliary parameter h and the asymptotic parameterρ(≥1)to handle mainly the differential equations of nonlinear *** offered scheme produces the solution in the shape of a convergent series in a large admissible domain which is helpful to regulate the region of convergence of a series *** proposed work computes the approximate analytical solution of the fractional modified DP equation systematically and also presents graphically the variation of the obtained solution for diverse values of the fractional parameterβ.

关键词： Fractional Degasperis-Procesi equation Nonlinear dispersive waves Analytical solution q-homotopy analysis method Sumudu transform

近20年印度北阿坎德邦奈尼塔尔地区农业面积变化

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Journal of Resources and Ecology 2023年第5期14卷 983-990页

作者： Saurabh PARGAIEN Rishi prakash ved prakash dubey 格拉菲克时代电子与通信工程系德拉敦248002印度格拉菲克时代山地大学计算机科学与工程系德拉敦248002印度

本研究对印度北阿坎德邦奈尼塔尔地区的农业用地进行了时间序列分析。该研究基于Landsat5,Landsat7and Landsat8卫星图像数据,使用随机森林分类器对该区域近21年(2000–2021年)的农业和非农业土地进行分类。陆地卫星图像使用谷歌地球引... 详细信息

本研究对印度北阿坎德邦奈尼塔尔地区的农业用地进行了时间序列分析。该研究基于Landsat5,Landsat7and Landsat8卫星图像数据,使用随机森林分类器对该区域近21年(2000–2021年)的农业和非农业土地进行分类。陆地卫星图像使用谷歌地球引擎(GEE)平台进行处理,随机森林分类器的选择则是基于随机森林(RF)、支持向量机(SVM)和分类与回归树(CART)之间的比较分析。对总体准确度、用户准确度、生产者准确度和Kappa系数进行了评估,以确定研究区域的最佳分类器。结果表明,2021年RF、SVM和CART的总体准确率分别为96.38%、94.44%和91.94%;类似地,RF、SVM和CART的Kappa系数分别为0.96、0.89和0.81。陆地卫星在农业和非农业地区的分类图像显示,该区域在21年间(2000–2021年)农业用地减少了4.71%。该研究还表明,过去4年(即2018–2021年)该区域农业面积下降幅度最大。本研究对于发展中国家了解农用地变化并采取适当措施以保护该地区的动植物非常重要。

关键词：机器学习土地分类谷歌地球引擎

Macrocyclic supramolecular biomaterials in anti-cancer therapeutics

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Chinese Chemical Letters 2023年第11期34卷 98-115页

作者： Biki Hazarika ved prakash Singh Department of Chemistry School of Physical SciencesMizoram UniversityAizawlMizoram 796004India Department of Industrial Chemistry School of Physical SciencesMizoram UniversityAizawlMizoram 796004India

Macrocyclic supramolecular complexes demonstrate the dynamic potential to solve global biomedical challenges,a promising cancer treatment *** macrocyclic system is an important heterocyclic system widely present in natural products and synthetic *** unique structural feature of macrocyclic supramolecular complexes with desirable donor&acceptor characteristics is beneficial for readily binding with various enzymes and receptors in biological systems through diverse weak interactions,thereby exhibiting broad ***-related research and macrocyclic moleculesbased medicinal chemistry developments have become rapidly developing areas of *** macrocyclic-based molecules as clinical drugs have been extensively used in the clinic to treat various diseases with high therapeutic *** critically analyzed work systematically reviews current developments of macrocyclic supramolecular complexes-based compounds in the range of medicinal chemistry as anticancer,anti-inflammatory,and other therapeutic agents,together with their potential applications in diagnostics and *** review will be helpful for medicinal chemistry researchers to develop new thoughts in the quest for rational designs of more active and less toxic macrocyclic supramolecular complexes-based medicinal drugs,as well as more effective diagnostic agents and pathologic probes.

关键词： Supramolecular Weak interactions Self-assembly Drug-delivery Cancer Nano Tumor targeted Calixarene Cucurbituril In vivo bioimaging

No-load performance study of 1200 kV Indian UHVAC transmission system

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High Voltage 2016年第3期1卷 130-137页

作者： Satyadharma Bharti Satya prakash dubey Department of Electrical Engineering RCET BhilaiChhattisgarh Swami Vivekananda Technical UniversityBhilaiIndia

Major load centres of India are located at northern part and western–southern part of country,whereas most of the generating units are concentrated at eastern and North-eastern *** transmission of bulk power over a long distance is a basic requirement for which ultra-high voltage AC(UHVAC)transmission system is identified as a feasible solution resulting in reduced transmission loss and reduced corridor width(right of way),protection of precious flora and *** this,Powergrid Corporation of India along with Central Power Research Institute had made a call for indigenous development of UHVAC *** a result,1200 kV UHVAC National Test Station is developed in India at *** 400/1200 kV bay is successfully charged,along with one 1200 kV single circuit and one 1200 kV double-circuit test transmission *** study deals with the study of on-site acceptance test such as sweep frequency response analysis,frequency-domain spectroscopy(FDS),along with inrush current measurement,voltage withstand test,corona measurement,thermo-vision scanning conducted on-site at no load,to ensure the performance of transmission system.A brief review of technical studies related to UHVAC technology developed throughout the World is also *** power transmission at 1200 kV is a feasible and viable option but further research is required in this area to make UHV transmission a global success.

关键词： load performance system

Anthropogenic disturbances and status of forest and wildlife in the dry deciduous forests of Chhattisgarh state in India

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Journal of Forestry Research 2012年第1期23卷 45-52页

作者： Chandra prakash Kala Yogesh dubey Ecosystem & Environment Management Indian Institute of Forest Management P.B. No. 357 Nehru Nagar Bhopal - 462 003 Madhya Pradesh INDIA

The advent of modem forces and the changes in socio- economic patterns of forest dwellers have increased the pressures on the forests. In order to mitigate such pressures and also to protect the forests and wildlife the model of protected areas networks has shifted and en- hanced such pressures in the unprotected natural forests due to several reasons. Being a low profile category of protected status and continuous human settlements, the present study highlights the case of dry deciduous forests of Sarguja district of Chhattisgarh state of India. The major objec- tives of this study were to quantify the status of forests and wildlife and also to determine the extent of anthropogenic disturbances faced by the dry deciduous forests of central India. Transect and silent drive count methods were used for sampling wildlife and quadrat method was used for sampling vegetation. Besides, the local uses of various forest pro- duces were also studied in view of understanding the people dependency on forests. The forest vegetation, in the study area, was pre-dominated by Shorea robusta, which had Madhuca indica, Diospyrus melanoxylon and Buchnania lanzan as the major companion species. The forest had either the high girth class mature tree species or the saplings. The low vegeta- tion cover and density were due to the high anthropogenic pressures mainly in the form of heavy livestock grazing and collection of etlmo- botanically important species. The study though reveals that the area is not rich in wildlife and the forest is fragmented, the area still supports some important species, which include many rare and endangered plants and animals. The findings of this study have been discussed in view of the management and conservation of the forest and wildlife in the dry deciduous forests.

关键词： dry deciduous forest central India wildlife anthropogenicdisturbances biodiversity conservation

Role of Complementary and Alternative Medicine in Prevention and Treatment of COVID-19:An Overhyped Hope

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Chinese Journal of Integrative Medicine 2020年第8期26卷 565-567页

作者： Abhishek Shankar Anusha dubey Deepak Saini Chandra prakash Prasad Department of Radiation Oncology Lady Hardinge Medical College and SSK HospitalDelhi 110001India Division of Cancer Control and Prevention Indian Society of Clinical OncologyDelhi 110049India Department of Medical Oncology(Lab) Dr BR Ambedkar Institute Rotary Cancer HospitalAll India Institute of Medical SciencesDelhi 110029India

The entire mankind across the globe is suffering with COVID-19 outbreak and searching for definite vaccine or treatment for *** country is trying hard to get a breakthrough for definitive therapy in the form of antiviral therapy,plasma therapy and vaccine against this virus,as current management is symptom directed *** of the countries are also trying complementary and alternative medicine(CAM),including traditional,Herbal treatment,alone or in combination with standard management.

关键词： vaccine breakthrough treatment

Revisiting the role of mesenchymal stem cells in tuberculosis and other infectious diseases

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Cellular & Molecular Immunology 2023年第6期20卷 600-612页

作者： Annu Devi Isha Pahuja Shashi prakash Singh Akanksha Verma Debapriya Bhattacharya Ashima Bhaskar ved prakash Dwivedi Gobardhan Das Special Centre for Molecular Medicine Jawaharlal Nehru UniversityNew DelhiIndia Immunobiology Group International Centre for Genetic Engineering and Biotechnology New DelhiIndia Department of Molecular Medicine Jamia Hamdard UniversityNew DelhiIndia Centre for Biotechnology Siksha O Anusandhan UniversityBhubneshwarOdishaIndia

Mesenchymal stem cells(MsCs)play diverse roles ranging from regeneration and wound healing to immune *** investigations have indicated the crucial role of these multipotent stem cells in regulating various aspects of the immune *** express unique signaling molecules and secrete various soluble factors that play critical roles in modulating and shaping immune responses,and in some other cases,MSCs can also exert direct antimicrobial effects,thereby helping with the eradication of invading ***,it has been demonstrated that MSCs are recruited at the periphery of the granuloma containing Mycobacterium tuberculosis and exert"Janus"-like functions by harboring pathogens and mediating host protective immune *** leads to the establishment of a dynamic balance between the host and the *** function through various immunomodulatory factors such as nitric oxide(NO),IDO,and immunosuppressive ***,our group has shown that *** uses MSCs as a niche to evade host protective immune surveillance mechanisms and establish *** also express a large number of ABC efflux pumps;therefore,dormant *** residing in MSCs are exposed to a suboptimal dose of ***,it is highly likely that drug resistance is coupled with dormancy and originates within *** this review,we discussed various immunomodulatory properties of MsCs,their interactions with important immune cells,and soluble *** also discussed the possible roles of MsCs in the outcome of multiple infections and in shaping the immune system,which may provide insight into therapeutic approaches using these cells in different infection models.

关键词： Mesenchymal Stem Cells(MsCs) Macrophages Tuberculosis Infectious Diseases T cells Immunomodulation Immunotherapy.