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impact of Fin Arrangement on Heat Transfer and Melting Characteristics of Phase Change Material

Journal of Thermal Science 2024年第2期33卷 435-456页

作者： Arun UNiYAL yogesh k.pra.a.a.i Department of Mechanical Engineering National Institute of Technology UttarakhandSrinagar(Garhwal)246174India Department of Mechanical Engineering BIT SindriDhanbadJharkhand828123India

Present work investigates the heat transfer and melting behaviour of phase change material(PCM) in six enclosures(enclosure-1 to 6) filled with paraffin *** enclosures are equipped with distinct arrangements of the fins while keeping the fin's surface area equal in each *** analysis has been presented to recognize the suitable fin arrangements that facilitate improved heat transfer and melting rate of the *** wall of the enclosure is maintained isothermal for the temperature values 335 k,350 k and 365 *** length of the enclosure including fins is ranging between 0 and *** have been illustrated through the estimation of important performance parameters such as energy absorbing capacity,melting rate,enhancement ratio,and Nusselt *** has been found that melting time(to melt 100% of the PCM) is 60.5%less in enclosure-2(with two fins of equal length) as compared to the enclosure-1,having no *** the fin surface area equal,if the longer fin is placed below the shorter fin(enclosure-3),melting time is further decreased by 14.1% as compared to ***,among all the configurations,enclosure-6 with wire-mesh fin structure exhibits minimum melting time which is 68.4% less as compared to the *** on the findings,it may be concluded that fins are the main driving agent in the enclosure to transfer the heat from heated wall to the *** design and positioning of the fins improve the heat transfer rate followed by melting of the PCM in the entire area of the *** of the favourable vortices and natural convection current in the enclosure accelerate the melting phenomenon and help to reduce charging time.

关键词： phase change material enclosure fin melting fraction energy storage heat transfer

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Effectiveness of craniosacral therapy,Bowen therapy,static touch and standard exercise program on sleep quality in fibromyalgia syndrome:A randomized controlled trial

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Journal of integrative Medicine 2024年第4期22卷 473-483页

作者： Reepa Avichal Ughreja Prem Venkatesan Dharmanand Balebail Gopalakrishna yogesh Preet Singh Vani Lakshmi R Department of Physiotherapy Manipal College of Health ProfessionsManipal Academy of Higher EducationManipal 576104KarnatakaIndia Department of Rheumatology Manipal HospitalBengaluru 560052KarnatakaIndia Department of Clinical immunology and Rheumatology All India Institute of Medical SciencesBilaspur 174001Himachal PradeshIndia Department of Data Science Prasanna School of Public HealthManipal Academy of Higher EducationManipal 576104KarnatakaIndia

Background:Sleep disturbance is commonly seen in fibromyalgia syndrome (FMS);however,high quality studies involving manual therapies that target FMS-linked poor sleep quality are lacking for the indian ***:Craniosacral therapy (CST),Bowen therapy and exercises have been found to influence the autonomic nervous system,which plays a crucial role in sleep *** the paucity of evidence concerning these effects in individuals with FMS,our study tests the effectiveness of CST,Bowen therapy and a standard exercise program against static touch (the manual placebo group) on sleep quality in ***,setting,participants and intervention:A placebo-controlled randomized trial was conducted on132 FMS participants with poor sleep at a hospital in *** participants were randomly allocated to one of the four study groups,including CST,Bowen therapy,standard exercise program,and a manual placebo control group that received static ***,Bowen therapy and static touch treatments were administered in once-weekly 45-minute sessions for 12 weeks;the standard exercise group received weekly supervised exercises for 6 weeks with home exercises until 12 *** 12 weeks,all study participants performed the standard exercises at home for another 12 *** outcome measures:Sleep quality,pressure pain threshold (PPT),quality of life and fibromyalgia impact,physical function,fatigue,pain catastrophizing,kinesiophobia,and positive–negative affect were recorded at baseline,and at weeks 12 and 24 of the ***:At the end of 12 weeks,the sleep quality improved significantly in the CST group (P=0.037) and Bowen therapy group (P=0.023),and the PPT improved significantly in the Bowen therapy group(P=0.002) and the standard exercise group (Pic touch *** improvements were maintained at 24 *** between-group differences were observed for other secondary ***:CST and Bowen therapy improv

关键词： Chronic pain Complementary therapies Exercise Fibromyalgia Musculoskeletal manipulations Sleep

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Deep Learning-Based Mask identification System Using ResNet Transfer Learning Architecture

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Computer Systems Science & Engineering 2024年第2期48卷 341-362页

作者： Arpit Jain Nageswara Rao Moparthi A.Swathi yogesh kumar Sharma Nitin Mittal Ahmed Alhussen Zamil S.Alzamil MohdAnul Haq Department of Computer Science and Engineering KoneruLakshmaiah Education FoundationVaddeswaram522302India Department of Computer Science and Engineering Sreyas Institute of Engineering and TechnologyHyderabad500068India University Centre for Research and Development Chandigarh UniversityMohali140413India Department of Computer Engineering College of Computer and Information SciencesMajmaah UniversityAl-Majmaah11952Saudi Arabia Department of Computer Science College of Computer and Information SciencesMajmaah UniversityAl-Majmaah11952Saudi Arabia

Recently,the coronavirus disease 2019 has shown excellent attention in the global community regarding health and the *** Health Organization(WHO)and many others advised controlling Corona Virus Disease in *** limited treatment resources,medical resources,and unawareness of immunity is an essential horizon to *** all resources,wearing a mask is the primary non-pharmaceutical intervention to stop the spreading of the virus caused by Severe Acute Respiratory Syndrome Coronavirus 2(SARS-CoV-2)*** countries made masks mandatory to prevent *** such enforcement,automatic and effective face detection systems are *** study presents a face mask identification approach for static photos and real-time movies that distinguishes between images with and without *** contribute to society,we worked on mask detection of an individual to adhere to the rule and provide awareness to the public or *** paper aims to get detection accuracy using transfer learning from Residual Neural Network 50(ResNet-50)architecture and works on detection *** experiment is tested with other popular pre-trained models such as Deep Convolutional Neural Networks(AlexNet),Residual Neural Networks(ResNet),and Visual Geometry Group Networks(VGG-Net)advanced *** proposed system generates an accuracy of 98.4%when modeled using Residual Neural Network 50(ResNet-50).Also,the precision and recall values are proved as better when compared to the existing *** outstanding work also can be used in video surveillance applications.

关键词： Transfer learning depth analysis convolutional neural networks(CNN) COViD-19

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Endoscopic full-thickness plication along with argon plasma coagulation for treatment of proton pump inhibitor dependent gastroesophageal reflux disease

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World Journal of Gastrointestinal Endoscopy 2024年第5期16卷 250-258页

作者： yogesh Harwani Shreya Butala Balaji More Varun Shukla Anand Patel Department of Gastroenterology Nobel Gastro HospitalAhmedabad 408409GujaratIndia Department of Gastroenterology Sanjay Gandhi Post Graduate Institute of Medical SciencesLucknow 226014Uttar PradeshIndia Department of Pharmacology Mahatma Gandhi Medical College and Research InstitutePuducherry 607402PuducherryIndia Department of Gastroenterology Noble Institute of GastroenterologyAhmedabad 380009GujratIndia

BACkGROUND Most endoscopic anti-reflux interventions for gastroesophageal reflux disease(GERD)management are technically challenging to practice with inadequate data to support it ***,this study was carried to evaluate the effectiveness and safety newer endoscopic full-thickness fundoplication(EFTP)device along with Argon Plasma Coagulation to treat individuals with *** To evaluate the effectiveness and safety newer EFTP device along with Argon Plasma Coagulation to treat individuals with *** This study was a single-center comparative analysis conducted on patients treated at a Noble institute of Gastroenterology,Ahmedabad,hospital between 2020 and *** research aimed to retrospectively analyze patient data on GERD symptoms and proton pump inhibitor(PPi)dependence who underwent EFTP using the GERD-X system along with argon plasma coagulation(APC).The primary endpoint was the mean change in the total gastroesophageal reflux disease health-related quality of life(GERD-HRQL)score compared to the baseline measurement at the 3-month *** endpoints encompassed enhancements in the overall GERD-HRQL score,improvements in GERD symptom scores at the 3 and changes in PPi usage at the 3 and 12-month time *** in this study,patients most were in Hill Class ii,and over half had ineffective esophageal *** the EFTP procedure,there were significant improvements in heartburn and regurgitation scores,as well as GERDHRQL scores(Pi use significantly decreased,with 82.6%not needing PPis or prokinetics at end of 1 *** significant adverse events related to the procedures were observed in either *** The EFTP along with APC procedure shows promise in addressing GERD symptoms and improving patients'quality of life,particularly for suitable ***,the application of a lone clip with APC yielded superior outcomes and exhibited greater cost-effectiveness.

关键词： Gastroesophageal reflux disease Endoscopy Quality of life Endoscopic antireflux interventions Retrospective data analysis Gastroesophageal reflux disease symptom scores Proton pump inhibitor

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A novel reconfiguration of the solar array to enhance peak power and efficiency under partial shading conditions:experimental validation

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Clean Energy 2023年第4期7卷 824-842页

作者： Vijay Laxmi Mishra yogesh k.Chauhan k.S.Verma EED KNIT SultanpurU.P.Pin-228118India

Non-homogeneous irradiation patterns and temperature levels immensely affect the performance of solar photovoltaic *** shading conditions on solar arrays reduce the peak power and *** paper provides a new remedy called a novel Ramanujan reconfiguration(NRR)to eliminate this physical shading problem in solar photovoltaic *** is a static-based reconfigured technique that is built using a three-diode model with the help of the MATLAB®/Simulink®*** special feature of the proposed NRR technique is that when shade occurs on the solar modules,it gets realigned in a particular row,column,diagonal,corner,centre and middle peripheral *** helps over a wide range of shade dispersion on the solar *** novel topology is tested against the conventional total cross-tied(TCT)model and recently introduced advanced reconfigured models,namely odd–even topology(OET)and kendoku topology(kDT).The results are tested under certain shading *** proposed NRR technique increases the peak power by 4.45,2.15 and 2.17 W under the first shading condition regarding TCT,OET and *** efficiency is improved by 0.51–2.18%under the third shading condition compared with other considered models in this *** addition,NRR leads to smooth output curves under the second,third and fourth shading conditions,effectively mitigating the local power *** experimental results show the proposed enhanced performance of the novel model against the other *** Abstract Remedy for physical problem correlated with solar photovoltaics Comparison with traditional and recent solar models Conclusion:NRR has effectively handled the problem related with solar *** has improved the efficiency up to 31.44%under ***,smooth output curves under S2-S4 shows its effectiveness in mitigating the local power *** power gain at 3.94%under S4 is achieved by novel ***-time verification proves the supremacy of novel proposed model over o

关键词： efficiency partial shading conditions peak power Ramanujan reconfiguration solar array total cross-tied three-diode model

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Comparison of detached eddy simulation and standard k-ε RANS model for rack-level airflow analysis inside a data center

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Building Simulation 2022年第9期15卷 1595-1610页

作者： Anashusen Saiyad yogesh Fulpagare Atul Bhargav Mechanical Engineering Energy Systems Research LaboratoryIndian Institute of Technology GandhinagarPalajGandhinagarGJ382355India

High computing demands and data privacy regulations from many countries in the world have resulted in the expansion of data *** this,energy consumption by data centers has increased to an alarming *** centers are highly dynamic due to time-dependent server heat generation and cold-hot aisle arrangements,making it difficult to have real-time control for efficient thermal *** cooling strategies based on conservative set points affect energy *** of expensive field measurements,CFD analysis of the flow field inside the data center can provide insightful data to assist the heat release from the *** detailed rack-level flow field inside the data center is missing in the literature as most of the studies are based on approximate results using the RANS-based k-ε ***,DES-based models have shown the ability to resolve complex flow *** this finding,rack-level CFD analysis of the data center is performed using DES and standard k-ε *** first,average rack inlet and outlet air temperatures in steady-state were validated with experiments within the accuracy of 1.4℃.The distributions of turbulent kinetic energy and mean velocity inside the cold aisle were *** recirculation region in the cold aisle was well-captured by the DES and qualitatively validated with the experiments compared to the k-e *** k-ε model failed to predict SHi,RTi,and/3 metrics,whereas the DES model successfully captured recirculation and self-heating of the upper *** acceptable trade-off between computational cost and accuracy for the simulations would be a pivotal parameter for the selection of either DES or the k-ε model for the data center CFD *** porous media assumption of the servers can bring uncertainties for turbulent quantities and hence further DES model for a data center can provide additional insights in this study.

关键词： data center CFD DES RANS thermal management

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A novel slot scheduling technique for duty-cycle based data transmission for wireless sensor network

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Digital Communications and Networks 2022年第3期8卷 351-358页

作者： yogesh Tripathi Arun prakash Rajeev Tripathi Department of Electronics and Communication Engineering Motilal Nehru National Institute of Technology AllahabadPrayagraj211004India

The duty cycling process involves turning a radio into an active and dormant state for conserving energy. it is a promising approach for designing routing protocols for a resource-constrained Wireless Sensor Networks (WSNs). in the duty cycle-based WSNs, the network lifetime is improved and the network transmission is increased as compared to conventional routing protocols. in this study, the active period of the duty cycle is divided into slots that can minimize the idle listening problem. The slot scheduling technique helps determine the most efficient node that uses the active period. The proposed routing protocol uses the opportunistic concept to minimize the sender waiting problem. Therefore, the forwarder set will be selected according to the node's residual active time and energy. Further, the optimum routing path is selected to achieve the minimum forwarding delay from the source to the destination. Simulation analysis reveals that the proposed routing scheme outperforms existing schemes in terms of the average transmission delay, energy consumption, and network throughput.

关键词： Duty cycle Energy model Wireless sensor network Slot scheduling technique

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Auto-Scaling Framework for Enhancing the Quality of Service in the Mobile Cloud Environments

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Computers, Materials & Continua 2023年第6期75卷 5785-5800页

作者： yogesh kumar Jitender kumar Poonam Sheoran CSE Department DCR University of Science and TechnologyMurthalSonepat131039India BME Department DCR University of Science and TechnologyMurthalSonepat131039India

On-demand availability and resource elasticity features of Cloud computing have attracted the focus of various research *** cloud computing is one of these domains where complex computation tasks are offloaded to the cloud resources to augment mobile devices’cognitive ***,the flexible provisioning of cloud resources is hindered by uncertain offloading workloads and significant setup time of cloud virtual machines(VMs).Furthermore,any delays at the cloud end would further aggravate the miseries of real-time *** resolve these issues,this paper proposes an auto-scaling framework(ACF)that strives to maintain the quality of service(QoS)for the end users as per the service level agreement(SLA)negotiated assurance level for service *** addition,it also provides an innovative solution for dealing with the VM startup overheads without truncating the running *** the waiting cost and service cost tradeoff-based systems or threshold-rule-based systems,it does not require strict tuning in the waiting costs or in the threshold rules for enhancing the *** explored the design space of the ACF system with the CloudSim *** extensive sets of experiments demonstrate the effectiveness of the ACF system in terms of good reduction in energy dissipation at the mobile devices and improvement in the *** the same time,the proposed ACF system also reduces the monetary costs of the service providers.

关键词： Auto-scaling computation offloading mobile cloud computing quality of service service level agreement

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Petrogenesis of the Neoarchean zincian chromite within ultramafic xenoliths,Bastar Craton,india

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Acta Geochimica 2023年第3期42卷 471-487页

作者： Arpita karmakar Tushar Meshram Mohammad Asif yogesh Pandey Geological Survey of india Vasudha BhawanKumarswamy LayoutBangalore 560111India Geological Survey of india NagpurIndia Geological Survey of india RaipurIndia

The present study reports and discusses the genesis of zincian chromite in the ultramafic xenoliths from the Dongripali area,Bastar craton,Central *** zincian chromite is in the ultramafic xenoliths of Bengpal supracrustal rock hosted by Neoarchaean Bundeli *** zincian chromite shows a range of Cr_(2)O_(3)(39.69 to 51.66 wt%),Al_(2)O_(3)(05.30 wt%to 08.71 wt%),FeO(21.74 wt%to 27.51 wt%),Fe_(2)O_(3)(10.19 wt%to 19.36wt%)with higher ZnO content ranging from 1.73 wt%to 4.08 wt%.Accordingly,their Cr#[Cr/(Cr+Al)]varies in a narrow range from 0.83 to *** calculated melt composition supports metamorphic or post-magmatic nature rather than common occurrences such as inclusion in diamonds,meteorites,and association with any sulfide-rich mineralised *** reveals that the post-magmatic processes play a vital role in transforming chromite to zincian *** empirical thermometric calculation from chromite,amphibole,and pyroxene support their metamorphic origin and formed during low-P and high-T amphibolite grade facies of metamorphism(~700℃).The Neoarchaean granitic magmatism has a significant role in generating and transferring the heat during contact metamorphism with hydration of ultramafic xenoliths and further alteration,i.e.,*** olivine is a major repository for Mn,Zn,and Co in peridotite/ultramafic;these elements get mobilised during the metamorphism and *** is a possible reason for the mobilisation of zinc and incorporation in the chromite within altered *** a result,chromiterich ultramafic xenolith subjected to metamorphic process gets enrichment of Zn and Fe due to elemental *** converts common chromite into zincian chromite,as reported in altered ultramafics elsewhere.

关键词： Zincian chromite Ultramafic Neoarchaean granitic magmatism High-grade metamorphism

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Monitoring of lithium-ion cells using a microcontroller

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Clean Energy 2022年第1期6卷 89-96页

作者： Gaurav pratap Singh Yash Lehri Lakshay Bhatia yogesh Sehgal Department of Electrical and Electronics Department Bharati Vidyapeeth’s College of EngineeringNew DelhiIndia

Safe and efficient operation of batteries is always desired but batteries with a high energy density pose a threat to the system causing thermal breakdown,reduced performance and rapid *** reduce such vulnerabilities,an optimum environment with controlled parameters is *** parameters have been considered for analysis,*** of charge,current,voltage and *** module makes a detailed analysis of the above-mentioned parameters and suggests a microcontroller-based prototype that is capable of monitoring the external factors in real time and generating relevant warnings.

关键词： lithium ion battery-management system thermal runaway battery temperature battery current battery voltage microcontrollers

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