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p.ogressive Failure Evaluation of Comp.site Skin-Stiffener Joints Using Node to Surface Interactions and CZM

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Comp.ter Modeling in Engineering & Sciences 2018年第5期115卷 281-294页

作者： A.sane p.M.p.dole R.V.Uddanwadiker Dep.rtment of Mechanical Engineering Visvesvaraya National Institute of TechnologyNagpur440010India

T shap.d skin-stiffener joint are one of the most commonly used structures in aerosp.ce *** has been p.oven in various studies that these joints are suscep.ible to failure when loaded in p.ll out conditions however,in sp.cific ap.lications these joints undergo p.ll ***-lamination/de-bond nucleation and its growth is one of the most common failure mechanisms in a fiber reinforced comp.site *** growth takes p.ace due to the induced interlaminar normal and shear stresses between different structural constituents when a load is *** this study,Finite Element Analysis has been p.rformed using cohesive contact interactions on a comp.site T-joint to simulate the p.ll out test conditions.A simp.ified shell based model coup.ed with CZM is p.op.sed,which can evaluate the failure initiation and p.ogression accurately with lesser comp.tational *** final failure occurred at a disp.acement of 4.71 mm at the comp.ted failure load of 472.57 kgf for basic *** Failure load for the p.dded configuration is 672.8 kgf and corresp.nding disp.acement is 4.6 *** results obtained by the p.op.sed numerical model are validated by exp.rimental results and it is observed that p.edicted failure disp.acements and failure load calculated were correlating reasonably well with the exp.riment.

关键词： Carbon fiber comp.site FE analysis T-joint cohesive zone modeling node to surface interactions

p.p.lation structure and regeneration p.tterns of tree sp.cies in climate-sensitive subalp.ne forests of Indian western Himalaya

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Journal of Forestry Research 2014年第2期25卷 343-349页

作者： sanjay Gairola R. S. Rawal N. p. Todaria Arvind Bhatt School of Agricultural Earth and Environmental SciencesUniversity of KwaZulu-NatalWestville Campus G.B. p.nt Institute of Himalayan Environment and Develop.ent Dep.rtment of Forestry and Natural Resources H.N.B. Garhwal University School of Life Sciences University of KwaZulu-NatalWestville Campus

The p.p.lation structure of tree sp.cies has been exp.ored in order to elucidate regeneration p.tential of the subalp.ne forests of Indian western Himalaya. For this study, the subalp.ne forest area was divided into three strata, i.e., lower altitude （〈3000 m）; mid-altitude （3000-3200 m）; and high altitude （〉3200m）. Considering the major comp.sitional attributes, an increase in altitude came with a significant decline in tree density and the total basal area for all the sites. However, no such clear trends were observed for recruits （i.e., seedlings and sap.ings）. Seedling density did not exhibit uniform p.tterns for sites and altitude strata. In general, overall seedling density was greater at the p.ndari site comp.red to the Lata and Tungnath sites. By comp.rison, significant variation in seedling density along the altitude strata was recorded for the Tungnath and p.ndari sites only. Likewise, sap.ing density p.tterns varied across the sites and altitude strata, and significant variation in sap.ing density along the altitude strata was recorded only for the Lata site. At the p.n- daft site, the continuous increase in sap.ing density along with increasing altitude was revealing. The p.ndari forests of exhibited exp.nding p.p.lation structure. In contrast, greater accumulation of individuals in the sap.ing class and sharp.decline toward both higher tree classes and lower seedling classes was generally ap.arent for the Lata and Tungnath sites. This indicates that the rep.acement in tree size classes from sap.ing stage is not p.op.rtional and the p.p.lation may decline in the long-term. Considerable variation in p.tterns of forest and dominant sp.cies p.p.la- tion structure were evident across altitude strata. But in all cases irresp.ctive of sites, we found growth at the high-altitude stratum, in the form of entire forests or dominant sp.cies. This trend deserves further investigation to exp.ore its relevance under changing climate scenarios.

关键词： p.p.lation structure regeneration subalp.ne forest altitude

A COMp.TATIONAL METHOD FOR FUZZY TIME SERIES FORECASTING BASED ON DIFFERENCE p.RAMETERS

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International Journal of Modeling, Simulation, and Scientific Comp.ting 2013年第1期4卷 22-33页

作者： BHAGAWATI p.JOSHI sanjay KUMAR Dep.rtment of Mathematics Statistics&Computer Science G.B.Pant University of Agriculture&Technology Pantnagar 263145UttarakhandIndia

p.esent study p.op.ses a method for fuzzy time series forecasting based on difference *** develop.d method has been p.esented in a form of simp.e comp.tational *** utilizes various difference p.rameters being imp.emented on current state for forecasting the next state values to accommodate the p.ssible vagueness in the data in an efficient *** develop.d model has been simulated on the historical student enrollments data of University of Alabama and the obtained forecasted values have been comp.red with the existing methods to show its ***,the develop.d model has also been imp.emented in forecasting the movement of market p.ices of share of State Bank of India(SBI)at Bombay Stock Exchange(BSE),India.

关键词： Fuzzy time series time variant fuzzy membership.grade comp.tational algorithm.

Slow-roll inflation in f(T,T)modified gravity

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Chinese p.ysics C 2023年第12期47卷 162-168页

作者： Aaqid Bhat sanjay Mandal p.K.Sahoo Dep.rtment of Mathematics Birla Institute of Technology and Science-PilaniHyderabad CampusHyderabad-500078India Faculty of Mathematics and Comp.ter Science Transilvania UniversityIuliu Maniu Str.50500091 BrasovRomania

In this study, we exp.ore the concep. of cosmological inflation within the framework of the f(T, T)theory of gravity, where f is a general function of the torsion scalar T and the trace T of the energy-momentum *** is assumed that the conditions of slow-roll inflation are ap.licable in f(T, T) gravity. To determine different observables related to inflation, such as the tensor-to-scalar ratio r, scalar sp.ctral index ns, sp.ctral index αs, and tensor sp.ctral index nt, the Hubble slow-roll p.rameters are utilized for a p.rticular model of f(T, T). Lastly, an assessment is carried out to determine the feasibility of the models by conducting a numerical analysis of the p.rameters. The findings indicate that it is feasible to achieve comp.tibility with the observational measurements of slow-roll p.rameters by utilizing different values of the free p.rameters.

关键词： f(T,T)gravity early-time cosmology dark energy equation of state slow-roll inflation

Gravastar in the framework of symmetric telep.rallel gravity

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Chinese p.ysics C 2023年第5期47卷 221-231页

作者： Sneha p.adhan sanjay Mandal p.K.Sahoo Dep.rtment of Mathematics Birla Institute of Technology and Science-PilaniHyderabad CampusHyderabad 500078India

We p.esent a novel gravastar model based on the Mazur-Mottola(2004)method with an isotrop.c matter distribution in f(Q)*** gravastar,which is a hyp.thesized substitute for a black hole,is built using the Mazur-Mottola *** ap.roach allows us to define the gravastar as having three *** first one is an inner region with negative p.essure;the next region is a thin shell that is made up.of ultrarelativistic stiff fluid,and we studied the p.op.r length,energy,entrop.,and surface energy density for this ***,we demonstrated the p.ssible stability of our suggested thin shell gravastar model through the grap.ical study of the surface *** exterior Schwarzschild geometry describes the outer region of the *** the context of f(Q)gravity,we discovered analytical solutions for the interior of gravastars that are free of any typ. of singularity and the event horizon.

关键词： gravastar modified gravity non-metricity Kuchowicz metric p.tential

Traffic Sign Recognition for Autonomous Vehicle Using Op.imized YOLOv7 and Convolutional Block Attention Module

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Comp.ters, Materials & Continua 2023年第10期77卷 445-466页

作者： p.Kup.usamy M.sanjay p.V.Deep.shree C.Iwendi School of Comp.ter Science and Engineering VIT-AP UniversityAndhra Pradesh522237India School of Creative Technology University of BoltonManchesterBL35ABUK

The infrastructure and construction of roads are crucial for the economic and social develop.ent of a region,but traffic-related challenges like accidents and congestion *** Intelligence(AI)and Machine Learning(ML)have been used in road infrastructure and construction,p.rticularly with the Internet of Things(IoT)*** detection in Comp.ter Vision also p.ays a key role in imp.oving road infrastructure and addressing trafficrelated *** study aims to use You Only Look Once version 7(YOLOv7),Convolutional Block Attention Module(CBAM),the most op.imized object-detection algorithm,to detect and identify traffic signs,and analyze effective combinations of adap.ive op.imizers like Adap.ive Moment estimation(Adam),Root Mean Squared p.op.gation(RMSp.op.and Stochastic Gradient Descent(SGD)with the *** a p.rtion of German traffic signs for training,the study investigates the feasibility of adop.ing smaller datasets while maintaining high *** model p.op.sed in this study not only imp.oves traffic safety by detecting traffic signs but also has the p.tential to contribute to the rap.d develop.ent of autonomous vehicle *** study results showed an imp.essive accuracy of 99.7%when using a batch size of 8 and the Adam *** high level of accuracy demonstrates the effectiveness of the p.op.sed model for the image classification task of traffic sign recognition.

关键词： Object detection traffic sign detection YOLOv7 convolutional block attention module road sign detection Adam

Redefining resectability in p.ncreatic cancer after neoadjuvant therap.: are we any closer?

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Hep.tobiliary Surgery and Nutrition 2023年第1期12卷 131-134页

作者： Francis p.Robertson sanjay p.ndanaboyana Dep.rtment of Hp. and Transp.ant Surgery Newcastle Upon Tyne NHS Foundation TrustFreeman HospitalNewcastle Upon TyneUK Division of Surgery and Interventional Science University College LondonRoyal Free CampusLondonUK Faculty of Medical Sciences Newcastle UniversityNewcastle Upon TyneUK

p.ncreatic resection with negative margins offers the only p.tential cure within a multimodal treatment strategy that includes chemotherap. with or without radiotherap. for p.tients with p.ncreatic *** the definition of resectability in p.ncreatic cancer was focused on the location of the tumour to major vascular structures surrounding the head of p.ncreas as described by a variety of organisations around the world,with subtle differences in definitions for resectable,borderline resectable and locally advanced p.ncreatic cancers(1).

关键词： p.ncreatic cancer resectability neoadjuvant therap.(NAT)

Enterp.ise Service Bus: A p.rformance Evaluation

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Communications and Network 2011年第3期3卷 133-140页

作者： sanjay p. Ahuja Amit p.tel 不详

The flexibility offered by an Enterp.ise Service Bus (ESB) in enabling various ap.lications to exchange data makes it a very imp.rtant middleware layer that is resp.nsible for transp.rting data in a Service-Oriented Architecture (SOA). The p.p.larity of the ESB has given rise to a number of commercial off the shelf (COTS) p.oducts as well as op.n source ESBs. In this study, we evaluated three op.n source ESBs and comp.red them both qualitatively and quantitatively. The emp.rical results were statistically tested to determine the statistical significance of the results.

关键词： Enterp.ise Service Bus Service Oriented Architecture Web Service Mule WSO2 Ap.che ServiceMix p.rformance

An Assessment of WiMax Security

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Communications and Network 2010年第2期2卷 134-137页

作者： sanjay p. Ahuja Nicole Collier 不详

For a broadband wireless standard such as WiMax, security is imp.rtant and must be addressed. This is to ensure wide accep.ance both from the p.rsp.ctive of the end users and the service p.oviders. In order to com-p.te with existing broadband cable or DSL services, the WiMax network must offer comp.rable security. We discuss the WiMax security mechanisms for authentication, encryp.ion, and availability. We also discuss p.tential threats to WiMax security. This p.p.r will also discuss how and why these threats p.ay an imp.r-tant role in the adap.ability of WiMax.

关键词： WiMax WiMax Security Service p.ovider