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Asian pacific Journal of Tropical Medicine 2013年第2期6卷 102-109页

作者： C.panneerselvam K.Murugan K.Kovendan p.mahesh Kumar J.Subramaniam DRDO-BU Center for Life Sciences Bharathiar UniversityCoimbatore-641046Tamil NaduIndia Division of Entomology Department of ZoologySchool of Life Sciences.Bharathiar UniversityCoimbatore-641046Tamil NaduIndia

Objective:To explore the larvicidal and pupicidal activity of Euphorbia hirta（***） leaf extract and Bacillus sphaericus（***） against the malarial *** siephensi（An. stephensi）.Methods:The larvicidal and pupicidal activity was assayed against *** at various concentrations ranging from（75-375 ppm） under the laboratory as well as field conditions. The LC50 and LC90 value of the *** leaf extract was determined by probit ***: The plant extract showed larvicidal effects after 24 h of exposure;however,the highest larval mortality was found in the methanol extract of *** against the first to fourth instars larvae and pupae of values LC50=137.40,172.65,217.81,269.37 and 332.39 ppm;*** against the first to fourth instars larvae and pupae of values LC50= 44.29,55.83,68.51,82.19 and 95.55 ppm, ***,combined treatment of values of LC50= 79.13,80.42,86.01,93.00 and 98.12 ppm,*** mortality was observed in the ***:These results suggest methanol leaf extracts of *** and *** have potential to be used as an ideal ecofriendly approach for the control of the malarial *** as target species of vector control *** study provides the first report on the combined mosquito larvicidal and pupicidal activity of this plant crude extract and bacterial toxin against *** mosquitoes.

关键词： Euphorbia hirta Anopheles stephensi Bacillus sphaericus Larvicidal and pupicidal activity Field trial Malarial vector

Anatomy of the 2009 Fiordland earthquake(M_w 7.8),South Island,New Zealand

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Geoscience Frontiers 2011年第1期2卷 17-22页

作者： p.mahesh Bhaskar Kundu J.K.Catherine V.K.Gahalaut National Geophysical Research Institute Council of Scientific and Industrial ResearchHyderabad 500007India

We have analyzed the July 15, 2009, Fiordland earthquake （Mw 7.8）, which occurred in the southwestern part of the South Island of New Zealand. This thrust-related earthquake in the southern Fiordland subduction zone is the largest New Zealand earthquake in the past 80 years. We have constrained a rupture model for this earthquake using coseismic offsets derived from the continuous geodetic network （Global positioning System） of the New Zealand Institute of Geological and Nuclear Sciences （GNS Science）. Our analysis concludes that this earthquake significantly increased the Coulomb stress on the overriding plate, particularly on the offshore portion of the Alpine fault.

关键词： Fiordland subduction zone Global positioningSystem Coulomb stress Alpine fault

An experimental study on ballistic impact response of jute reinforced polyethylene glycol and nano silica based shear thickening fluid composite

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Defence Technology（防务技术） 2022年第3期18卷 401-409页

作者： Vishwas mahesh Dineshkumar Harursampath Vinyas mahesh NMCAD Lab Department of Aerospace EngineeringIndian Institute of Science(IISc)Bangalore560012KarnatakaIndia Department of Industrial Engineering and Management Siddaganga Institute of Technology KarnatakaTumakuru572102India Department of Mechanical Engineering National Institute of Technology SilcharAssam788010India

The present study aims at assessing the ballistic impact behaviour of jute reinforced polyethylene glycol(pEG)and nano silica based shear thickening fluid(STF).preparation of STF is achieved by dispersing the nano silica particles at different weight percentage loadings of 10%,20%,30%and 40%in pEG and the effect of various weight percentages loading of nano silica particles on ballistic performance of the proposed composites is studied *** studies of the prepared STF’s showed that at all nanosilica loading shear thickening occurred and also the shear thickening was highest at higher loading of nano silica at lower rate of *** study reveals that the ballistic performance of the jute fabric is enhanced with impregnation of *** ballistic results indicate that energy absorption of the proposed composites is enhanced with increased loading of nano silica particles and at the same time,the effect of STF was *** energy absorption(SEA)of the neat fabric and the proposed composites was made use of for the purpose of comparing the energy absorption *** is found that the SEA of proposed composites with 10%nano silica loading is lesser than the neat fabric both in case of 3 layers and 6 *** was also found that proposed composite with 40%nano silica loading exhibits highest SEA compared to neat fabric and its counterparts with its SEA being 3.21 and 3.76 times highest compared to three and six layers of neat fabrics respectively.

关键词： Ballistic impact Shear thickening fluid Nano silica Jute

Microstructural Characterization and Mechanical properties of powder Metallurgy Dual phase Steel preforms

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Journal of Materials Science & Technology 2012年第12期28卷 1085-1094页

作者： K. mahesh S. Sankaran p. Venugopal Department of Metallurgical and Materials Engineering IIT Madras Chennai India

In order to improve the mechanical properties of powder metallurgy （p/M） ferrite-pearlite steel, a dual phase （Dp） ferrite-martensite steel was produced through intercritical annealing of sintered p/M preforms. Mi-crostructures of the sintered and Dp steels were examined with optical, scanning and transmission electron microscopes. Mechanical properties were evaluated through hardness measurements and compression tests. Microstructural studies revealed that sintered steel contained polygonal ferrite-pearlite while the Dp steel contained polygonal, lath and acicular ferrite along with lath-type martensite as microstructural constituents. In Dp steels, with increasing mean preform density, the microstructure contained fine and continuous network of martensite colonies with minimum porosity. The work hardening rate vs plastic strain plots （Jaoul-Crussard analysis） of both the steels revealed typical three stage deformation behaviour for low and high mean preform densities. Compression tests revealed that, Dp p/M steel displayed higher strength-plasticity combination than the sintered steel.

关键词： powder metallurgy Dual phase Jaoul-Crussard analysis Work hardening rate

A Recursive High payload Reversible Data Hiding Using Integer Wavelet and Arnold Transform

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Intelligent Automation & Soft Computing 2023年第1期35卷 537-552页

作者： Amishi mahesh Kapadia p.Nithyanandam School of Computer Science and Engineering Vellore Institute of TechnologyChennai600012TamilnaduIndia

Reversible data hiding is an information hiding technique that requires the retrieval of the error free cover image after the extraction of the secret *** suggested a technique in this research that uses a recursive embedding method to increase capacity substantially using the Integer wavelet transform and the Arnold *** notion of Integer wavelet transforms is to ensure that all coefficients of the cover images are used during embedding with an increase in *** scrambling the cover image,Arnold transform adds security to the information that gets embedded and also allows embedding more information in each *** hybrid combination of Integer wavelet transform and Arnold transform results to build a more efficient and secure *** proposed method employs a set of keys to ensure that information cannot be decoded by an *** experimental results show that it aids in the development of a more secure storage system and withstand few tampering attacks The suggested technique is tested on many image formats,including medical *** performance metrics proves that the retrieved cover image and hidden image are both *** System is proven to withstand rotation attack as well.

关键词： Reversible data hiding(RDH) integer wavelet transforms(IWT) arnold transform payload embedding and extraction

Building Resilience Through Disaster Waste Management——UN Environment's Experiences and Approaches

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工程科学与技术 2018年第3期50卷 15-23页

作者： pRADHAN mahesh XU Qing International Environmental Technology Centre United Nations Environment Programme Sichuan Academy of Environmental Sciences

Integrating disaster waste issue is a critical component of making humanitarian action fit for the future,anticipating global risks and challenges such as increased vulnerability due to climate change and environmental *** requires a fundamental shift towards a model that not only strengthens the response to crises but also learns and adapts in order to anticipate and act before such waste *** article conducted analyses on the characteristics of disasters in the past two *** confound disaster waste management,including the timing and magnitude of each disaster,and the amounts and types of waste that will be *** these reasons alone,disaster waste management must be an integral part of development planning and *** 10 years since the 2008 Wenchuan earthquake,this article highlights that disaster waste management is not only debris clearance or waste management following a disaster,but also includes prevention and pre-disaster preparedness aspects in terms of enhancing resilience of local ***"mainstreaming,"ensures that disaster waste management(DWM)will be treated as a priority issue,on an ongoing *** on UN Environment's experiences and approaches,this paper emphasises that preparedness is the key,and that priority should be accorded to integrating disaster contingency planning in national and city level waste management strategies as well as mainstreaming waste management issues within broader disaster preparedness and response plans and *** is envisaged that the issues presented and the gaps identified in this paper will provide a basis for future comprehensive and cohesive research on disaster waste *** turn,this research can lead to better preparedness and response on disaster waste management.

关键词： disaster waste disaster risk reduction waste management Sendai Framework

Hyaluronic acid as a rescue therapy for trinitrobenzene sulfonica cid-induced colitis through Cox-2 and pGE_2 in a Toll-like receptor 4-dependent way

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2011年第9期12卷 712-719页

作者： mahesh MAHASETH Department of Gastroenterology West China Hospital of Sichuan University

We hypothesized whether systemic administration of high-molecular-weight hyaluronic acid(HMW HA) could rescue trinitrobenzene sulfonic acid(TNBS)-induced colitis through Toll-like receptor 4(TLR4) signal.C3H/HeN mice and C3H/HeJ mice were *** were divided into four groups:control,50% ethanol treatment group,TNBS treatment group,and TNBS plus HA treatment *** weight changes,clinical scores,macroscopic scores,and histological scores were *** 2(Cox-2) and prostaglandin E 2(pGE 2) expressions were measured both in colons and peritoneal macrophages from these *** was a rescue therapy for the colitis induced by TNBS only in C3H/HeN *** clinical score,macroscopic score,and histological score were much lower in C3H/HeN mice receiving TNBS plus HA ***-2 and pGE 2 expressions only increased in C3H/HeN *** Cox-2 expressing cells were *** can also promote the production of Cox-2 and pGE 2 in peritoneal macrophages from C3H/HeN *** data demonstrated that HMW HA can rescue TNBS-induced colitis through inducing Cox-2 and pGE 2 expressions in a TLR4-dependent *** may be the effector cells of HMW HA.

关键词： Trinitrobenzene sulfonic acid(TNBS) colitis Therapy Hyaluronic acid Toll-like receptor

Interface engineering of p-n heterojunction for kesterite photovoltaics:A progress review

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Journal of Energy Chemistry 2021年第9期30卷 1-8页

作者： Mingrui He Kaiwen Sun mahesh p.Suryawanshi Jianjun Li Xiaojing Hao School of photovoltaic and Renewable Energy Engineering University of New South WalesSydneyNSW 2052Australia

Kesterite Cu_(2)ZnSn(S,Se)_4(CZTSSe)is considered one or the most promising thin-film photovoltaic(pV)technologies due to its bandgap tunability(1.0~1.5 eV)and high absorption coefficient(>10^(4)cm^(-1)).However,the highest power conversion efficiency(pCE)of CZTSSe has so far only reached up to 12.6%,much lower than the theoretical limit defined by the Shockley-Queisser(SQ)*** large opencircuit voltage(V_(oc))deficit and inferior fill factor(FF)are prevalent in kesterite pV and hamper the improvement in *** this review,unfavourable energy band alignment at the CZTSSe/buffer junction,as well as defective interface are identified as two obstacles at the p-n *** issues contribute to the interface induced recombination,thus significantly reducing ***,we review recent advances in strategies to improve the efficiency by altering the characteristics of the interface,covering alternative buffer layers,heterojunction treatments and passivation ***,future research directions of heterojunction engineering are proposed as schemes towards the ideal interface in kesterite solar cells.

关键词： Kesterite Thin film Solar cell Heterojunction Interface

Single-atom catalysts boosted ultrathin film sensors

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Rare Metals 2020年第10期39卷 1110-1112页

作者： Rahul Kumar mahesh Kumar Department of Electrical Engineering Indian Institute of Technology JodhpurJodhpur 342037India

Nowadays,demand for fast and accurate detection of toxic and flammable gases is increasing for human health safety,industrial process and environmental ***,gas sensor technology has become a requisite in our daily *** nanoscience and nanotechnology propel fabrication of a gas sensor at the miniaturization level for burgeoning Internet of things applications.

关键词： film nanotechnology gases

The Role of Radical Burst in plant Defense Responses to Necrotrophic Fungi

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Journal of Integrative Agriculture 2012年第8期11卷 1305-1312页

作者： mahesh S Kulye Key Laboratory of Integrated pest Management in Crops Ministry of Agriculture/Institute of Plant ProtectionChinese Academy of Agricultural Sciences

Necrotrophic fungi, being the largest class of fungal plant pathogens, pose a serious economic problem to crop production. Nitric oxide （NO） is an essential regulatory molecule in plant immunity in synergy with reactive oxygen species （ROS）. Most experimental data available on the roles of NO and ROS during plant-pathogen interactions are from studies of infections by potential biotrophic pathogens, including bacteria and viruses. However, there are several arguments about the role of ROS in defense responses during plants and necrotrophic pathogens interaction and little is known about the role of NO as a counterpart of ROS in disease resistance to necrotrophic pathogens. This review focuses on the recent knowledge about the role of oxidative burst in plant defense response to necrotrophic fungi.

关键词： nitric oxide mitogen-activated protein kinase necrotrophic fungi programmed cell death reactive oxygen species