检索结果-南通市图书馆

Chinese Journal of Chemistry 2012年第4期30卷 947-950页

作者： kuarm,b.suresh Janardan,b. Crooks,Peter A. Rajitha,b. Department of Chemistry National Institute of TechnologyWarangalAPIndia Department of Pharmaceutical Sciences College of PharmacyUniversity of Arkansas for Medical SciencesLittle RockAR 72205U.S.A.

Xanthan sulfuric acid is an efficient solid acid catalyst for the preparation of 2-aryl benzimidazoles in excellent yields. This method is applicable for the reaction of benzo[c][ 1,2,5]thiadiazole-4,5-diamine with aldehydes by sim- ple physical grinding at room temperature. The salient features of the present methodology is cheaper process, easy synthesis of stable catalyst and the catalyst can be easily recycled without significant loss of activity.

关键词： benzimidazoles benzo[c]thiadiazole-4,5-diamine biodegradable recyclable xanthan sulfuric acid (XSA)

Market Drivers in India’s Smart Grid:Responsibilities and Roles of Stakeholders

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Energy Engineering 2025年第1期122卷 101-128页

作者： Abhay Sanatan Satapathy suresh Kumar Sahoo Asit Mohanty Yasser Fouad Manzoore ElahiMohammad Soudagar Erdem Cuce Faculty of Management Studies Sri Sri UniversityCuttack754006India Institute of Power Engineering National Energy UniversityJalan Ikram-UnitenKajangSelangor43000Malaysia Centre of Research Impact and Outcome Chitkara UniversityRajpura140417PunjabIndia Department of Applied Mechanical Engineering College of Applied EngineeringMuzahimiyah BranchKing Saud UniversityRiyadh11421Saudi Arabia College of Engineering Lishui UniversityLishui323000China Department of Mechanical Engineering Graphic Era(Deemed to be University)Dehradun248002UttarakhandIndia Department of Mechanical Engineering Faculty of EngineeringUniversity of MalayaKuala Lumpur50603Malaysia Department of Mechanical Engineering Faculty of Engineering and ArchitectureRecep Tayyip Erdogan UniversityZihni Derin CampusRize53100Turkey Center for Research Impact&Outcome Chitkara UniversityRajpura140401PunjabIndia University Centre for Research and Development Chandigarh UniversityMohali140413PunjabIndia

The emergence of smart grids in India is propelled by an intricate interaction of market dynamics,regulatory structures,and stakeholder *** study analyzes the primary factors that are driving the widespread use of smart grid technologies and outlines the specific roles and obligations of different stakeholders,such as government entities,utility companies,technology suppliers,and *** activities and regulations are crucial in facilitating the implementation of smart grid technology by offering financial incentives,regulatory assistance,and strategic *** firms have the responsibility of implementing and integrating smart grid infrastructure,with an emphasis on improving the dependability of the grid,minimizing losses in transmission and distribution,and integrating renewable energy *** companies offer the essential hardware and software solutions,which stimulate creativity and enhance *** actively engage in the energy ecosystem by participating in demand response,implementing energy saving measures,and adopting distributed energy resources like solar panels and electric *** study examines the difficulties and possibilities in India’s smart grid industry,highlighting the importance of cooperation among stakeholders to build a strong,effective,and environmentally friendly energy future.

关键词： Smart grid stakeholders smart grid technology market drivers

Design and in vitro evaluation of controlled release alginate beads of diltiazem hydrochloride

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2009年第4期2卷 46-49页

作者： D.Nagasamy Venkatesh A.Kalaivani Kritika D.Kalro Lalitha Chintha James Tharani M.K.Samanta b.suresh Department of Pharmaceutics JSS College of PharmacyOOTY-643001Tamil NaduIndia

Objective:Oral slow and sustained release drug delivery system can release their drug content with a controlled manner,producing a desirable blood serum level,reduction in drug toxicity and improving the patient compliance by prolonging dosing *** major drawback of orally administered drug like diltiazem as a calcium channel blocker for the treatment of angina pectoris,arrhythmia and *** has higher aqueous solubility and shorter elimination ***:To overcome these drawbacks associated with diltiazem,an attempt has been made to develop a sustained release dosage form of diltiazem embedded alginate microbeads by ionotropic gelation technique employing various concentrations of polymer and keeping the drug concentration ***:The beads were characterized for its particle size,drug content and in vitro release studies. The results revealed that the surface adhering drug was found to release immediately and a steady state of release was obtained up to 12 h from all the *** results indicated there was an inverse relationship between the concentration of alginate and drug *** drug release was found to follow non-fickian diffusion obeying first order ***:The developed alginate microbeads offered a sustained release of diltiazem. Hence,the formulated microbeads were found to be potential,cost effective,possess satisfactory in vitro release studies.

关键词： Sodium alginate Diltiazem Microbeads Ionotropic gelation technique Peppa’s model

Effect of spark plasma sintering and reinforcements on the formation of ultra-fine and nanograins in AA2024-Tib2-Y hybrid composites

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Progress in Natural Science:Materials International 2022年第1期32卷 79-86页

作者： CH.suresh Vidyasagar D.b.Karunakar Department of Architecture and Planning Indian Institute of Technology Roorkee Mechanical and Industrial Engineering Department Indian Institute of Technology Roorkee

This study reports the influence of sintering mechanism and reinforcement materials on the formation of ultra-fine and nanograins in Al-Tib-Y nanohybrid composites. The mechanical properties of the composites and their corresponding micro and nanostructures are correlated. The experimental and characterization results revealed that despite the addition of Tib, the hard and brittle AlTi phase formation in the composites was suppressed and hence, their ductility was retained. It was found that yttrium content of 0.3 wt% was the optimum amount which created advantageous spark plasma sintering conditions, and the addition of 0.3 wt% promoted the formation of bi-modal size grains（ultra-fine and nano） along with micro grains, Ω and other nano precipitates, resulting in a significant enhancement in the composite properties. The formation of ultra-fine and nanograins may be attributed to the combined effect of melting and rapid solidification at necking zones due to Joule’s heating and thermomechanical fatigue. Among all the sintered composites, the highest hardness（137 HV）, ultimate tensile strength（UTS）(496 MPa), yield strength（YS）(438 MPa) with 15.7% elongation were obtained in the sintered sample reinforced with 1.0 wt% Tiband 0.3 wt% yttrium.

关键词： Hybrid composites Ultra-fine grains Nano grains Spark plasma sintering Nano precipitates Microstructure

Characteristics of MOF, MWCNT and graphene containing materials for hydrogen storage: A review

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2019年第3期28卷 132-144页

作者： Kranthi Kumar Gangu suresh Maddila Saratchandra babu Mukkamala Sreekantha b Jonnalagadda School of Chemistry & Physics University of KwaZulu-Natal Westville Campus Department of Chemistry GITAM Institute of Science GITAM University

Hydrogen is a generally abundant, safe, clean and environmentally apt alternative fuel, which replenishes the void generated by depleting fossil fuel reserves. The adoption of hydrogen as an energy source has been restricted to low levels due to the complications associated with its viable storage and usage. Existing technologies, such as storage of hydrogen in compressed and liquefied forms are not adequate to meet the broad on-board applications. The gravimetric energy density(120 MJ/kg) of hydrogen is three times higher than that of gasoline products, so solid-state hydrogen storage is ***-organic frameworks(MOFs), multi-walled carbon nanotubes(MWCNTs) and graphene are solid adsorbents majorly employed for efficient H_2 storage. The prominent features of MOFs such as permanent porosity, structural rigidity, and surface area are attractive and ideal for hydrogen storage. In addition,nanostructured carbon materials(MWCNTs and graphene) and their composites have demonstrated significant hydrogen storage capacities. Some important parameters for the success of the hydrogen economy include high storage density, adsorption/desorption temperature and cycling time. Cryo-hydrogen storage was achieved in MOFs and their composites with carbon structures, but storage at ambient temperature and acceptable pressures is a major hurdle. This review discusses various strategies and mechanisms in the design of adsorbents explored to improve H_2 storage capacities and afford opportunities to develop new sustainable hydrogen technologies to meet energy targets.

关键词： Hydrogen storage Metal-organic frameworks MWCNTs/Graphene Nanocomposites Spillover Hydrogen economy

Stability analysis of approximately multidimensional additive mappings on fuzzy spaces

在线全文

学校读者我要写书评

暂无评论

Applied Mathematics(A Journal of Chinese Universities) 2024年第4期39卷 700-720页

作者： b.V.Senthil Kumar Hemen Dutta S.suresh Department of Mathematics Saveetha School of EngineeringSaveetha Institute of Medical and Technical SciencesChennai-602105Tamil NaduIndia Department of Mathematics Gauhati UniversityGuwahati-781014AssamIndia Department of Mathematics Jeppiaar Institute of TechnologySunguvarchatram-631604SriperumbudurTamil NaduIndia

The intention of this paper is to study new additive kind multi-dimensional functional equations inspired by several applications of difference equations in biology,control theory,economics,and computer science,as well as notable implementation of fuzzy ideas in certain situations involving ambiguity or *** the context of different fuzzy spaces,we demonstrate their various fundamental stabilities related to Ulam stability *** appropriate example is given to show how stability result fails when the singular case *** findings of this study suggest that stability results are valid in situations with uncertain or imprecise *** stability results obtained under these fuzzy spaces are compared with previous stability results.

关键词： additive mapping additive functional equation Ulam stability generalized Ulam-Hyers stability

Kinetic simulation of an electronegative plasma with a cut-off distribution and modified bohm criterion

在线全文

学校读者我要写书评

暂无评论

Plasma Science and Technology 2020年第4期22卷 33-39页

作者： suresh bASNET Raju KHANAL Central Department of Physics Tribhuvan UniversityKirtipurKathmandu 44613Nepal

A kinetic simulation model has been employed to study the properties of an electronegative magnetized plasma sheath assuming the cut-off distribution of electrons and negative *** fundamental kinetic bohm condition for the electronegative magnetized plasma has paramount importance for the formation of a stationary plasma sheath near the material *** presence of an oblique magnetic field in an electronegative plasma affects the ion distribution at the plasma injection side and at the *** temperature profile of negative charged particles has a non-uniform distribution,which determines the energy flow towards the wall.

关键词： bohm condition kinetic simulation plasma–wall interaction electronegative plasma

OPTIMAL PRICING OF A PERSONALIZED PRODUCT

在线全文

学校读者我要写书评

暂无评论

Journal of Systems Science and Systems Engineering 2008年第1期17卷 30-35页

作者： suresh P.SETHI School of Management The University of Texas at Dallas 800 W.Campbell Rd.RichardsonTX 75080

This paper deals with optimal pricing of a personalized product such as a personal portrait or photo. A new model of the pricing structure inspired by two real-life cases is introduced to the literature and solved to obtain optimal photo sitting fees and the final product price. A sensitivity analysis with respect to the problem parameters is performed.

关键词： Personalized product pricing salvage loss

Optimal PV Array Configuration for Extracting Maximum Power Under Partial Shading Conditions by Mitigating Mismatching Power Losses

在线全文

学校读者我要写书评

暂无评论

CSEE Journal of Power and Energy Systems 2022年第2期8卷 499-510页

作者： Praveen Kumar bonthagorla suresh Mikkili the Electrical and Electronics Engineering Department National Institute of Technology Goa403401India

The grid-connected or standalone PV central inverter architecture is comprised of several PV modules which are connected in different ways to form the PV *** power generation capability of the PV array is primarily affected by partial shading conditions(PSC).Due to PSCs,the power output of the PV array is dramatically reduced,and mismatching losses are induced in the PV *** on the extent of these problems,multiple peaks also appear in the power-voltage(P-V)curve,which makes it very difficult to track the global maximum power point(GMPP).The main objective of this research paper is to model and simulate the series(S),series-parallel(SP),bridge-link(bL),honey-comb(HC),total-cross-tied(TCT)and proposed triple-tied(TT)solar PV array configurations under various partial shading *** performance of all PV configurations is evaluated under a uniform approach,considering eight different shading *** performance of the considered PV configurations is analyzed in terms of their mismatching power losses,fill factors,efficiency,global maximum power points(GMPPs),local maximum power points(LMPPs),voltages and currents at GMPPs,open circuit voltage and short circuit *** above-mentioned PV configurations are modeled and simulated in a Matlab/Simulink environment by considering the KC-200GT module parameters.

关键词： Photo voltaic(PV) PV array configurations triple-tied(TT) maximum power point(MPP) partial shading mismatching power losses fill factor efficiency

Assessment of Cross-coupling Effects in PV String-integrated-converters with P&O MPPT Algorithm Under Various Partial Shading Patterns

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

CSEE Journal of Power and Energy Systems 2022年第4期8卷 1013-1028页

作者： Suneel Raju Pendem suresh Mikkili the Electrical and Electronics Engineering Department National Institute of Technology GoaPonda 403401India

A signifcant challenge in the progress and development of building-Integrated-Photovoltaic(b-I-PV)systems is concerned with the extraction of maximum power from PV *** PV system archtecture is an essential feature to extract the maximum *** conventional PV-centralinverter architecture consists of various connections among the PV modules,which are sensitive to shading effects and pro-duces mismatching power loss under partial shading conditions(PSCs),Hence,photovoltaic-distributed-maximum power point tracking(PV-D-MPPT)architecture has been proposed to extract the maximum ***-1 D-MPPT architecture,the output terminals of DC-DC converters are connected either in series or parallel *** main limitation of the series configuration in open-loop MPPT control is the crosscoupling *** of cross-coupling effects,the maximum-power-point(M-P-P)operation of shaded PV modules is lost under *** lost in M-P-P operation of shaded PV module also affects the unshaded modules M-P-P *** crosscoupling ffeets,the DC-DC converters are consuming the power instead of delivering to the *** the research activity,there are hardly any papers presenting a clear,comprehensive and mathematical analysis on the existence of cross-couplings in PV string-integrated-converters(S-1-Cs).This article presents a mathematical analysis and also explains the conditions for the existent of cross-coupling *** experimental results also validate with the mathematically analysed *** article also discusses the modeling of the two-diode model of PV module,design of boost type S-1C,and the Perturb and Observe(P&O)MPPT algorithm implementation.

关键词： Cross-coupling ffects mismatching power loss partial shading conditions(PSCs) PV-central-inverter architecture PV-D-MPPT architecture S-I-Cs series configuration