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Analytical study of atmospheric internal waves model with fractional approach

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Journal of Ocean Engineering and Science 2024年第4期9卷 326-337页

作者： Trushit Patel hardik Patel Ramakanta Meher Computer Science University of the PeoplePasadenaCA 91101United States Department of Mathematics Uka Tarsadia UniversityBardoliGujaratIndia Mathematics and Humanities Department Sardar Vallabhbhai National Institute of TechnologySuratGujaratIndia

This study looks at the mathematical model of internal atmospheric waves,often known as gravity waves,occurring inside a fluid rather than on the *** the shallow-fluid assumption,internal atmospheric waves may be described by a nonlinear partial differential equation *** shallow flow model’s primary concept is that the waves are spread out across a large horizontal area before rising *** Fractional Reduced Differential Transform Method(FRDTM)is applied to provide approximate solutions for any given *** aids in the modelling of the global atmosphere,which has applications in weather and climate *** the integer-order value(α=1),the FRDTM solution is compared to the precise solution,EADM,and HAM to assess the correctness and efficacy of the proposed technique.

关键词： Shallow-fluid equations Atmospheric internal waves Time-fractional partial differential equations Fractional reduced differential transform method(FRDTM) Climate prediction

Dengue hemorrhagic fever with rectus sheath hematoma:A case report

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Asian Pacific Journal of Tropical Medicine 2024年第3期17卷 136-138页

作者： Boudhayan Bhattacharjee hardik Patel Rucha Karad Vasireddy Teja Agnibho Mondal Soumendra Nath Haldar Bibhuti Saha Department of Infectious Diseases and Advanced Microbiology School of Tropical MedicineKolkataIndia

Rationale:Acute pain is a medical emergency that requires prompt abdominal evaluation and ***,a mosquito-borne arboviral infection,can lead to complications such as acute abdominal *** concerns:A 72-year-old hypertensive female presented with high-grade intermittent fever with chills and rigors for four *** was diagnosed with dengue fever(NS1Ag-reactive)the day before admission.A contrast-enhanced computed tomography of the abdomen showed a hematoma along the rectus sheath which was managed conservatively as per surgical ***:Dengue hemorrhagic fever with rectus sheath ***:Blood transfusion and fluid ***:Ten days after discharge,the patient reproted no pain in the right iliac fossa and the size of the hematoma was significantly ***:Although it is rarely seen as a cause of acute abdomen,complaints of adnominal pain should never be ignored in critical or convalescent phase of dengue *** investigations should be promptly conducted as hematoma is often difficult to be diagnosed *** in diagnosis of rectus sheath hematoma can be fatal.

关键词： Dengue fever Rectus sheath hematoma Surgical emergency Acute appendicitis

Knowledge and attitude on childhood cancer survivorship among healthcare trainees:a multicentre study from India

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Family Medicine and Community Health 2024年第S2期12卷 34-43页

作者： Amritesh Grewal Bhavik Bansal Chetanya Mittal hardik Gupta Archana Sasi Prasanth Ganesan Aashima Dabas Puneet Sahi Lakshmi Ramamoorthy Hmar Thiak Lalthanthuami Jaikumar Ramamoorthy Arwachi Sindhu Suyash Arora Anumeha Bhukya Muthumani Hepzibah Kanchana Devi Karthick Krishnamurthy Sanjeet K Rai Nikhil Mehta Komal Antil Sameer Bakhshi Shuvadeep Ganguly Medical Student All India Institute of Medical SciencesNew DelhiDelhiIndia Department of Medical Oncology Dr.B.R.A.Institute Rotary Cancer HospitalAll India Institute of Medical SciencesNew DelhiDelhiIndia Department of Medical Oncology Jawaharlal Institute of Postgraduate Medical Education and ResearchPuducherryPuducherryIndia Department of Pediatrics Lok Nayak HospitalNew DelhiDelhiIndia Department of Pediatrics Maulana Azad Medical CollegeNew DelhiDelhiIndia College of Nursing Jawaharlal Institute of Postgraduate Medical Education and ResearchPuducherryPuducherryIndia Department of Pediatrics Jawaharlal Institute of Postgraduate Medical Education and ResearchPuducherryPuducherryIndia Medical Student Maulana Azad Medical CollegeNew DelhiDelhiIndia Department of Surgical Disciplines All India Institute of Medical SciencesNew DelhiDelhiIndia Department of Dermatology and Venereology All India Institute of Medical SciencesNew DelhiDelhiIndia College of Nursing All India Institute of Medical SciencesNew DelhiDelhiIndia

Background The proportion of childhood cancer survivors(CCS)in low/middle-income countries(LMICs)is *** often develop several physical and psycho-social long-term adverse effects,with unique healthcare *** healthcare providers(primary care physicians(PCPs)),especially in LMICs,are often not equipped to handle survivorship *** study aimed to assess knowledge,and attitude among trainee healthcare providers concerning major issues of paediatric survivorship *** A multi-centre,cross-sectional,questionnaire-based study was conducted among nursing and medical undergraduate students,and postgraduate medical residents across three tertiary-care teaching hospitals in India—All India Institute of Medical Sciences,New Delhi;Jawaharlal Institute of Postgraduate Medical Education and Research,Puducherry;and Maulana Azad Medical College,New Delhi.A questionnaire with total of 24 questions(14 knowledge-based and 10 attitude-based)was finalised after validation by expert review and *** major domains covered in the questionnaire included knowledge and attitude regarding long-term adverse effects and psychosocial,employment-related issues faced by the *** was administered to the study participants *** knowledge-based questions had true/false responses(scored as 0 or 1 if incorrect or correct,respectively).Attitude-based questions were scored as 5-point Likert *** Total 898 responses were collected(median age:21 years,64%(576/898)female).Among the respondents,44%were undergraduate medical students,42%were nursing students and 14%were postgraduate medical *** mean(SD)of knowledge score was 8.72(2.04)(out of 14).On multivariable analysis,only discipline of training predicted knowledge scores regarding survivorship *** medical residents(9.08)as well as undergraduate medical students(8.85),had significantly higher mean knowledge scores than nursing students(8.47)(p=0.004).Two questions were

关键词： centre handle false

Tsunami wave propagation model:A fractional approach

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Journal of Ocean Engineering and Science 2022年第6期7卷 509-520页

作者： Priti Tandel hardik Patel Trushit Patel Department of Mathematics Veer Narmad South Gujarat UniversitySuratGujaratIndia Department of Mathematics Uka Tarsadia UniversityBardoliGujaratIndia Department of Mathematics Veermata Jijabai Technological InstituteMumbaiIndia

This paper presents a fractional approach to study the mathematical model of tsunami wave propagation along a coastline of an *** Reduced Differential Transform Method(FRDTM)is used to analyze this *** present model has been studied on the shallow-water *** is represented by a time-fractional coupled system of non-linear partial differential *** to the proposed model for different coastal slopes and ocean depths have been *** of coast slope and sea depth variations on tsunami wave velocity and wave amplification have been demonstrated at different time levels and different ordersα.The obtained results are compared with Elzaki Adomian Decomposition Method(EADM)to validate the proposed method for an orderα=1.

关键词： Tsunami wave Shallow water Time-fractional coupled system of partial differential equations Fractional reduced differential transform method(FRDTM)

An efficient technique for solving fractional-order diffusion equations arising in oil pollution

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Journal of Ocean Engineering and Science 2023年第3期8卷 217-225页

作者： hardik Patel Trushit Patel Dhiren Pandit Department of Mathematics Uka Tarsadia UniversityBardoliGujaratIndia Computer Science University of the PeoplePasadenaCA 91101United States Department of Mathematics and Humanities Nirma UniversityAhmedabadIndia

In this article,non-linear time-fractional diffusion equations are considered to describe oil pollution in the *** latest technique,fractional reduced differential transform method(FRDTM),is used to ac-quire approximate solutions of the time fractional-order diffusion equation and two cases of Allen-Cahn *** acquired results are collated with the exact solutions and other results from literature for integer-orderα,which reveal that the proposed method is ***,FRDTM can be employed to obtain solutions for different types of nonlinear fractional-order IVPs arising in engineering and science.

关键词： FRDTM Time-fractional nonlinear partial differential equation Diffusion equation Allen-Cahn(AC)equation Parabolic equations

EOQ model of deteriorating items for fuzzy demand and learning in fuzziness with finite horizon

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Journal of Control and Decision 2021年第2期8卷 89-97页

作者： hardik N.Soni Shivangi N.Suthar Chimanbhai Patel Post Graduate Institute of Computer Applications AhmedabadIndia Gujarat Daman&Diu Geo-spatial Data CentreSurvey of IndiaGandhinagar 382010GujaratIndia

This study investigates the effect of learning in fuzziness by considering fuzzy demand in theEOQ model for deteriorating items under a finite time *** crisp equivalent form of the fuzzy objective function is obtained by employing the centroid *** calculus,the number of replenishments which optimizes the fuzzy objective function is *** model is extended by applying learning in fuzziness and an algorithm is developed to determine the number of *** illustrations are provided for the model under a crisp,fuzzy and fuzzylearning *** results reveal that the cost is lower with learning in fuzziness than that of without learning in ***,results indicate that the learning in fuzziness is more effective whenever the parameter has higher impreciseness in the estimation of its value.

关键词： EOQ model fuzzy demand reduction of fuzziness learning effect centroid method

Aflatoxin contamination in food crops:causes,detection,and management:a review

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Food Production, Processing and Nutrition 2021年第1期3卷 228-236页

作者： Abhishek Kumar hardik Pathak Seema Bhadauria Jebi Sudan Department of Plant Biotechnology JECRC UniversityJaipurRajasthanIndia Department of Botany Dr.Bhimrao Ambedkar UniversityAgraUttar PradeshIndia

Mycotoxins are secondary metabolites produced by several fungal species and *** favorable conditions like high temperature and moisture,they contaminate a large number of food commodities and regional crops during pre and *** is the main mycotoxin that harm animal and human health due to its carcinogenic *** are mainly released by Aspergillus flavus and Aspergillus ***1 constitutes the most harmful type of aflatoxins and is a potent hepato-carcinogenic,mutagenic,teratogenic and it suppresses the immune *** maintain food safety and to prevent aflatoxin contamination in food crops,combined approaches of using resistant varieties along with recommended farming practices should be *** review concentrates on various aspects of mycotoxin contamination in crops and recent methods to prevent or minimize the contamination.

关键词： Mycotoxin Aflatoxin contamination Aspergillus flavus Aspergillus parasiticus Food crops

Pricing and inventory decisions for non-instantaneous deteriorating items with price and promotional effort stochastic demand

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Journal of Control and Decision 2019年第3期6卷 191-215页

作者： hardik N.Soni Dipali N.Suthar Chimanbhai Patel Post Graduate Institute of Computer Applications AhmedabadGujarat 380015India Department of Humanities and Science Kalol Institute of Technology&Research CentreKalolIndia

This study investigates an inventory model for a non-instantaneous deteriorating item with partial backlogging wherein the demand is stochastic in nature and depends on price and promotional effort whereas the deterioration rate is time *** these settings,a mathematical model is developed with the objective to maximise the expected profit per unit time by determining the optimal price and the length of replenishment *** useful theoretical results are established to deduce the optimal replenishment *** effective algorithmic procedure is developed to find the optimal solutions to the proposed *** applicability of the proposed model is illustrated by numerical *** analysis of the optimal solution with respect to key parameters has been carried out and the implications are *** study indicates that though promotional effort stimulates the market demand,it is beneficial in an economic sense when it applies in a conservative manner.

关键词： Inventory non-instantaneous deterioration stochastic demand promotional effort partial backlogging

Modified commercial UV curable elastomers for passive 4D printing

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International Journal of Smart and Nano Materials 2019年第3期10卷 225-236页

作者： hardik Hingorani Yuan-Fang Zhang Biao Zhang Ahmad Serjouei Qi Ge Digital Manufacturing and Design Centre Singapore University of Technology and DesignSingapore Science and Math Cluster Singapore University of Technology and DesignSingapore

Conventional 4D printing technologies are realized by combining 3D printing with soft active materials such as shape memory polymers(SMPs)and ***,the intrinsic material property limitations make the SMP or hydrogel-based 4D printing unsuitable to fabricate the actuators that need to exhibit fast-response,reversible ***,pneumatic actuations have been widely adopted by the soft robotics community to achieve fast-response,reversible actuations,and many efforts have been made to apply the pneumatic actuation to 3D printed structures to realize passive 4D printing with fast-response,reversible ***,the 3D printing of soft actuators/robots heavily relies on the commercially available UV curable elastomers the break strains of which are not sufficient for certain applications which require larger elastic *** this paper,we present two simple approaches to tune the mechanical properties such as stretchability,stiffness,and durability of the commercially available UV curable elastomers by adding:(i)mono-acrylate based linear chain builder;(ii)urethane diacrylate-based *** property characterizations have been performed to investigate the effects of adding the two additives on the stretchability,stiffness,mechanical repeatability as well as *** of fully printed robotic finger,grippers,and highly deformable 3D lattice structure are also presented.

关键词： 4D printing elastomer highly stretchable soft robots