检索结果-南通市图书馆

Journal of Mountain Science 2020年第3期17卷 724-739页

作者： Neetu KAPOOR Minakshi JAIN vijay kumar bansal Department of Architecture National Institute of Technology HamirpurHP 177005India School of Planning and Architecture VijayawadaAP 520008India Department of Civil Engineering National Institute of Technology HamirpurHP 177005India

The increasing demand for infrastructural facilities in hill areas needs efficient spatial planning at the local level through land suitability assessment,which is influenced by a number of factors. There has been little systematic empirical work for identification and evaluation of the factors affecting spatial planning decisions in hill areas. The present study focuses on identifying the critical factors for land suitability assessment at the local level in hill areas and determining their percentage influence, which has been done in two stages. In the first stage, the comprehensive list of 21 factors from the reported literature was prepared which was further condensed to the critical factors. In the second stage, the percentage influence of the critical factors was calculated by analyzing the experts’ opinions collected through a questionnaire survey. Analytic Hierarchy Process(AHP) was used for the analysis of the questionnaire for weighting the critical factors. The slope was identified with the highest weight followed by aspect, surface runoff, elevation, and vegetation,whereas groundwater table, existing utilities,accessibility, soil type, and land use have comparatively less weights. The results of the study were used for the identification of locations for builtup facilities of an educational campus located in hill areas of Himachal Pradesh, India.

关键词： Factor identification Hill areas Analytic hierarchy process India Weighted overlay

Gastroprotective effect of Acacia nilotica young seedless pod extract:Role of polyphenolic constituents

在线全文

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2012年第7期5卷 523-528页

作者： vijay kumar bansal Rajesh kumar Goel Department of Pharmaceutical Sciences NIMS UniversityJaipurIndia Department of Pharmaceutical Sciences and Drug Research Punjabi University PatialaIndia

Objective:To systematically evaluate antiulcer potential of Acacia nilotica in different ulcer models in ***:Different extracts[ethanolie,50%hydroethanolic(50:50),70% hydroethanolic(70:30) and aqueous]of young seedless pods were examined in pylorus ligation induced gastric ulcers in *** parameters like,volume of gastric acid secretion,pH,free acidity,total acidity,ulcer index,mucin content and antioxidant studies were determined and were compared between extract treated,standard and vehicle control following ulcer induction. The most active extract was also evaluated in swimming stress induced and NSAID induced gastric ***:Among different extracts of young seedless pods only hydroethanolic extracts showed significant antiulcer activity in pyloric ligation induced *** more the 70%hydroethanolic extract showed better protection as compared to 50%hydroethanolic *** 70%hydroethanolic extract also showed significant mucoprotection in swimming stress induced and nonsteroidal antiinflammatory drugs induced gastric ***: The results of present study concluded that the hydroethanolic extract of young seedless pods of Acacia nilotica has antiulcer activity in pylorus ligation,swimming stress and NSAID induced rat ulcer *** extract containing more amount of phenolic components show high antiulcer activity,indicating the phenolic component of the extract to be responsible for the activity of the extracts.

关键词： Peptic ulcer Acacia nilotica Ulcer index Tannins Flavonoids

高速火焰喷涂VC-CuNiCr涂层的耐腐蚀性能

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Central South University 2024年第5期31卷 1385-1397页

作者： SINGH Vikrant bansal Anuj SINGLA Anil kumar kumar vijay Sant Longowal Institute of Engineering and Technology Longowal Sangrur 148106India Industrial and Production Engineering Department Dr B R Ambedkar National Institute of TechnologyJalandhar 144011India

本研究采用高速火焰喷涂(HVOF)沉积技术,将碳化钒(VC)和铜镍铬(CuNiCr)复合涂层应用于SS316不锈钢上,以解决不锈钢在海洋环境中的腐蚀问题。在室温环境下,在3.5%氯化钠溶液中进行电化学腐蚀,通过扫描电子显微镜(SEM)和能量色散光谱(EDS... 详细信息

本研究采用高速火焰喷涂(HVOF)沉积技术,将碳化钒(VC)和铜镍铬(CuNiCr)复合涂层应用于SS316不锈钢上,以解决不锈钢在海洋环境中的腐蚀问题。在室温环境下,在3.5%氯化钠溶液中进行电化学腐蚀,通过扫描电子显微镜(SEM)和能量色散光谱(EDS)对有涂层和未覆涂层样品的表面形貌进行检测。结果表明,涂层内由铜(Cu)、镍(Ni)和铬(Cr)组成的金属间黏合剂在氯化钠介质的影响下发生变质,从而导致出现衬底间的局部点蚀现象。有趣的是,在涂层配方中加入碳化钒(VC)显著地增强了表面的耐腐蚀性能,从而阻止了密闭腐蚀凹坑的出现。在不同类的涂层中,加入VC的效果最好,最小的腐蚀速率为72.38×10^(-3)mm/a,相比之下,SS316基底的腐蚀速率最快。

关键词：高速火焰喷涂碳化钒铜镍铬电化学腐蚀氯化钠溶液

On Lie symmetries and invariant solutions of Broer-Kaup-Kupershmidt equation in shallow water of uniform depth

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean Engineering and Science 2024年第3期9卷 199-206页

作者： Dig vijay Tanwar Mukesh kumar Department of Mathematics Graphic Era Deemed to be UniversityDehradun 248002India Department of Mathematics Motilal Nehru National Institute of Technology AllahabadPrayagraj 211004India

The dynamics of atmosphere and ocean can be examined under different circumstances of shallow water waves like shallow water gravity waves,Kelvin waves,Rossby waves and inertio-gravity *** influences of these waves describe the climate change adaptation on marine environment and ***,the present work aims to derive symmetry reductions of Broer-Kaup-Kupershmidt equation in shallow water of uniform depth and then a variety of exact solutions are *** represents the propagation of nonlinear and dispersive long gravity waves in two horizontal directions in shallow *** invariance of test equations under one parameter transformation leads to reduction of independent ***,twice implementations of symmetry method result into equivalent system of ordinary differential ***,the exact solutions of these ODEs are computed under parametric *** derive results entail several arbitrary constants and functions,which make the findings more *** on the appropriate choice of existing parameters,these solutions are supplemented numerically and show parabolic nature,intensive and non-intensive behavior of solitons.

关键词： BKK equation Lie symmetry method Invariance property Invariant solutions Solitons

Pharmacological potential of Manilkara zapota(L.)***(Sapodilla):a narrative review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Traditional Chinese Medicine 2024年第2期44卷 403-407页

作者： Priyanka Sharma Aakash Deep Harish kumar Nitin bansal Sanjiv kumar Arun Davinder kumar Department of Pharmaceutical Sciences Chaudhary Bansi Lal UniversityBhiwani 127021India Department of Pharmaceutical Sciences Maharishi Dayanand UniversityRohtak 124001India

Herbal medicine is safe and effective in treating various *** herbal medicine plays a tremendous role in treatment of various diseases and accompanying complications,hence herbal medicine requires remarkable attention in further research for the development of numerous active formulations for treatment of health *** plant needs special consideration for development and research of unidentified compound and characterization of novel active molecules that overcome multiple pathological *** genus Manilkara contains 135 plants around the *** overview discusses all the virtues of most important and commonly used plant Manilkara zapota(L.)***(***),also known as *** has various traditional beneficial effects in treatment of various diseases and disorders dating back to prehistoric times and used in ancient traditional system of herbal medicine.

关键词： herbal medicine Manilkara zapota phytoconstituents pharmacological activity review

在线全文

学校读者我要写书评

暂无评论

Editorial

Big Data Mining and Analytics 2024年第2期7卷 I0001-I0002页

作者： kumar, Sunil Mapp, Glenford bansal, Abhay Cengiz, Korhan University of Surrey United Kingdom Middlesex University United Kingdom Amity University India Trakya University Turkey

Advanced technologies in science explore the study of business and *** can learn from and make predictions and decisions based on collected data through intelligent *** by technological advances in Big Data,Artificial Intelligence(AI),and Machine Learning(ML),such systems potentially have many applications,roles,and impacts on business and *** stay ahead of the competition,companies must think creatively about incorporating the latest technologies like AI,ML,and Big Data into their policy.

关键词： such companies Foster

Fast internal preheating of 4680 lithium-ion batteries in cold environments

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第10期17卷 8794-8802页

作者： Chuyue Guan Harrison Szeto Olivia Wander vijay kumar Raphaele JClément Yangying Zhu Department of Mechanical Engineering University of California Santa BarbaraSanta BarbaraCA 93106USA Department of Chemistry and Biochemistry University of California Santa BarbaraSanta BarbaraCA 93106USA Department of Materials University of California Santa BarbaraSanta BarbaraCA 93106USA

Lithium-ion batteries are expected to operate within a narrow temperature window around room temperature for optimal performance and ***,in cold environments,electric vehicle battery packs must be extensively preheated prior to charge or ***,conventional preheating is accomplished externally,which is slow and thus significantly increases charging ***,internal heating has been demonstrated as a potential solution to quickly and uniformly preheat a lithium-ion pouch ***,internal heating has not been evaluated in other battery formats such as cylindrical *** this work,we present a numerical model of a 4680 battery with internal heaters for fast preheating in cold *** effects that the number of heater layers,heating duration,resting duration,environmental temperature,and boundary heat transfer coefficient have on the temperature heterogeneity of the battery were *** results show that internal heating alone reduces the temperature variation within the battery by a factor of 5 compared to external heating,and by a factor of 20 when combining internal and external *** study further proves that internal preheating of lithium-ion batteries is a promising thermal management strategy,and provides guidance on potential design considerations and heating protocols to implement internal heating.

关键词： lithium-ion battery 4680 battery thermal management internal battery preheating COMSOL Multiphysics thermal simulation battery temperature heterogeneity

Nano/Micro-Structural Supramolecular Biopolymers: Innovative Networks with the Boundless Potential in Sustainable Agriculture

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2024年第8期16卷 79-101页

作者： Roohallah Saberi Riseh Mohadeseh Hassanisaadi Masoumeh Vatankhah Rajender S.Varma vijay kumar Thakur Department of Plant Protection Faculty of AgricultureVali-e-Asr University of RafsanjanImam Khomeini SquareRafsanjan ***Iran Centre of Excellence for Research in Sustainable Chemistry Department of ChemistryFederal University of São CarlosSão CarlosSP 13565‑905Brazil Biorefining and Advanced Materials Research Center Scotland’s Rural Collage(SRUC)Edinburgh EH93JGUK

Sustainable agriculture plays a crucial role in meeting the growing global demand for food while minimizing adverse environmental impacts from the overuse of synthetic pesticides and conventional *** this context,renewable biopolymers being more sustainable offer a viable solution to improve agricultural sustainability and ***/micro-structural supramolecular biopolymers are among these innovative biopolymers that are much sought after for their unique *** biomaterials have complex hierarchical structures,great stability,adjustable mechanical strength,stimuli-responsiveness,and self-healing *** molecules may be added to their flexible structure,for enabling novel agricultural *** overview scrutinizes how nano/micro-structural supramolecular biopolymers may radically alter farming practices and solve lingering problems in agricultural sector namely improve agricultural production,soil health,and resource *** bioactive ingredient released from biopolymers allows the tailored administration of agrochemicals,bioactive agents,and biostimulators as they enhance nutrient absorption,moisture retention,and root ***/micro-structural supramolecular biopolymers may protect crops by appending antimicrobials and biosensing entities while their eco-friendliness supports sustainable *** their potential,further studies are warranted to understand and optimize their usage in agricultural *** effort seeks to bridge the knowledge gap by investigating their applications,challenges,and future prospects in the agricultural *** experimental investigations and theoretical modeling,this overview aims to provide valuable insights into the practical implementation and optimization of supramolecular biopolymers in sustainable agriculture,ultimately contributing to the development of innovative and eco-friendly solutions to enhance agricultural productivity while minimizing envir

关键词： Supramolecular Biopolymers Sustainable agriculture Nanotechnology

Heat transfer during droHeat transfer during droplet impact on a cold superhydrophobic surface via interfacial thermal mappingplet impact on a cold superhydrophobic surface via interfacial thermal mapping

在线全文

学校读者我要写书评

暂无评论

Droplet 2024年第3期3卷 71-79页

作者： vijay kumar Qianxi Fu Harrison Szeto Yangying Zhu Department of Mechanical Engineering University of California Santa BarbaraSanta BarbaraCaliforniaUSA Department of Chemistry and Biochemistry University of California Santa BarbaraSanta BarbaraCaliforniaUSA

Undesired heat transfer during droplet impact on cold surfaces can lead to ice formation and damage to renewable infrastructure,among *** address this,superhydrophobic surfaces aim to minimize the droplet surface interaction thereby,holding promise to greatly limit ***,the dropletimpact on such surfaces spans only a few milliseconds making it difficult to quantify the heat exchange at the droplet–solid ***,we employ high-speed infrared thermography and a three-dimensionaltransient heat conductionCOMSOL modelto map the dynamic heat flux distribution during droplet impact on a cold superhydrophobic *** comprehensive droplet impact experiments for varying surface temperature,droplet size,and impacting height reveal that the heat transfer effectiveness(Q′)scales with the dimensionless maximum spreading radius as Q′∼(Rmax∕Ri)1.6,deviating from previous semi-infinite ***,despite shorter contact times,droplets impacting from higher heights demonstrate increased heat transfer effectiveness due to expanded contact *** results suggest that reducing droplet spreading time,as opposed to contact time alone,can be a more effective strategy for minimizing heat *** results presented here highlight the importance of both contact area and contact time on the heat exchange between a droplet and a cold superhydrophobic surface.

关键词： surface. hydrophobic transfer

Effect of weight-adjusted antimicrobial antibiotic prophylaxis on postoperative dosage and surgical site infection incidence in total joint arthroplasty

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Orthopedics 2024年第4期15卷 318-320页

作者： Ashim Gupta vijay kumar Jain Department of Orthopaedics and Regenerative Medicine Future BiologicsLawrencevilleGA 30043United States Department of Orthopaedics South Texas Orthopaedic Research Institute(STORI Inc.)LaredoTX 78045United States Department of Regenerative Medicine BioIntegrateLawrencevilleGA 30043United States Department of Orthopaedics and Regenerative Medicine Regenerative OrthopaedicsNoida 201301India Department of Orthopaedics Atal Bihari Vajpayee Institute of Medical SciencesDr Ram Manohar Lohia HospitalNew Delhi 110001India

Surgical site infections(SSI)following total joint arthroplasty pose a significant concern for both providers and patients across the ***,administration of antimicrobial antibiotic prophylaxis is used throughout the world to reduce the incidence of ***,the correct dosage and frequency of administration remains *** this editorial,we emphasized the determination of the effect of administration of weight-adjusted antimicrobial antibiotic prophylaxis regime on the incidence of SSI and postoperative dosage reduction compared to the conventionally used regime during total joint *** results demonstrated similar efficacy between both regimes with respect to the incidence of *** addition,weight-adjustment led to reduced postoperative dosage and has the potential to reduce chances of achieving lower therapeutic concentration,drug resistance,drug toxicity,and costs.

关键词： Antibiotics Antimicrobial prophylaxis Weight-adjusted Surgical site infections Total joint arthroplasty Knee arthroplasty Hip arthroplasty