检索结果-南通市图书馆

Adder design using a 5-input majority gate in a novel “multilayer gate design paradigm” for quantum dot cellular automata circuits

在线全文

学校读者我要写书评

暂无评论

Journal of Semiconductors 2015年第4期36卷 95-103页

作者： Rohit kumar Bahniman ghosh Shoubhik Gupta Department of Electrical Engineering Indian Institute of Technology Kanpur Microelectronics Research Center 10100Burnet RoadBldg. 160University of Texas at Austin University of Glasgow

This paper proposes a novel design paradigm for circuits designed in quantum dot cellular automata （QCA） technology. Previously reported QCA circuits in the literature have generally been designed in a single layer which is the main logical block in which the inverter and majority gate are on the base layer, except for the parts where multilayer wire crossing was used. In this paper the concept of multilayer wire crossing has been extended to design logic gates in multilayers. Using a 5-input majority gate in a multilayer, a 1-bit and 2-bit adder have been designed in the proposed multilayer gate design paradigm. A comparison has been made with some adders reported previously in the literature and it has been shown that circuits designed in the proposed design paradigm are much more efficient in terms of area, the requirement of QCA cells in the design and the input-output delay of the circuit. Over all, the availability of one additional spatial dimension makes the design process much more flexible and there is scope for the customizability of logic gate designs to make the circuit compact.

关键词： multilayer gate design QCA adders MUX 5-input majority voter

A Comparative Assessment of Temperature Data from Different Sources for Dehradun, Uttarakhand, India

在线全文

学校读者我要写书评

暂无评论

Journal of Meteorological Research 2016年第6期30卷 1019-1032页

作者： Atul Kant PIYOOSH Sanjay kumar ghosh Department of Civil Engineering Indian Institute of Technology Roorkee

A comparative study of extreme temperature parameters from different sources is carried out by examining standardized anomalies, trends, correlation, and equivalence of datasets. Maximum temperature （Tmax） and minimum temperature （Wmln） for Dehradun, from two different sources such as computed and gridded data from Climatic Research Unit （CRU） and observed data from India Meteorological Department （IMD） are used for 1901-2012. The CRU data are compared initially with IMD, by graphical assessment of standardized anomalies. Subsequently, change points are identified by using Cumulative Sum （CUSUM）-chart technique for trend analysis. The magnitude and significance of trends are determined by applying Sen＇s slope test, and on the basis of these, trends are compared. Further, correlation analysis is carried out and datasets are tested for equivalence by using Wileoxon-Mann Whitney test. The result shows that annual standardized anomalies of CRU data follow the pattern of annual standardized anomalies of IMD data. The CRU data exhibit similar trends and are well correlated with IMD dataset. Moreover, CRU anomaly data are identical with IMD anomaly data in the recent decades. High resolution gridded CRU data have open access and may be more useful due to its spatio-temporal continuity for land areas of the world.

关键词： cumulative sum Sen's slope temperature trend temperature anomaly correlation Wilcoxon Mann-Whitney test

Simplistic hydrothermal synthesis approach for fabricating photoluminescent carbon dots and its potential application as an efficient sensor probe for toxic lead(II)ion detection

在线全文

学校读者我要写书评

暂无评论

Frontiers of Chemical Science and Engineering 2023年第5期17卷 536-547页

作者： Trisita ghosh Rajkumar Sahoo Suman kumar ghosh Pallab Banerji Narayan Ch.Das Rubber Technology Centre Indian Institute of Technology KharagpurKharagpur 721302India Department of Chemistry Indian Institute of Technology KharagpurKharagpur 721302India Materials Science Centre Indian Institute of Technology KharagpurKharagpur 721302India

The past decade has witnessed a variety of members of the carbon family along with exposure of carbon dots due to their magnificent properties in sensing,bioimaging,catalytic applications,biomedical fields,and so ***,we report the simple hydrothermal method to fabricate photoluminescent doped carbon quantum dots for the detection of noxious lead(II)***(II)ion is very venomous for both the environment and human health for which its detection is demanded area in the research *** as-prepared carbon dots show excellent photostability,low toxicity and significant photoluminescence properties along with good water *** with these properties,carbon dots have a quantum yield of approximately 15%.In the practical field of application,these carbon dots have been used as sensing probes for the detection of lead(II)ions with a detection limit of 60 nmol·L^(–1).The fluorescence intensity of carbon dots was remarkably quenched in the presence of the lead(II)ion selectively among all the tested metal ***,we have studied the Stern–Volmer relationship for lead(II)quenching along with the explanation of the probable quenching *** of the doped carbon dots in heavy metal ions sensing in an environmental sample was demonstrated.

关键词： carbon dots fluorescence heavy metal sensing practical application photoluminescence

Geochemical signatures of potassium metasomatism in anthracite from the Himalayan fold‑thrust belts of Sikkim,India

在线全文

学校读者我要写书评

暂无评论

International Journal of Coal Science & Technology 2022年第2期9卷 48-69页

作者： Santanu ghosh Anwita Ojha Atul kumar Varma Coal Geology and Organic Petrology Laboratory Department of Applied GeologyIndian Institute of Technology(Indian School of Mines)DhanbadJharkhand 826004India Department of Earth Sciences Indian Institute of Technology BombayPowaiMumbaiMaharashtra 400076India

The present study focuses on the inorganic geochemical features of the bituminous coal samples from the Raniganj and the Jharia Basins,as well as the anthracite samples from the Himalayan fold-thrust belts of Sikkim,*** SiO_(2)content(48.05 wt%to 65.09 wt%and 35.92 wt%to 50.11 wt%in the bituminous and anthracite samples,respectively)and the ratio of Al_(2)O_(3)/TiO_(2)(6.97 to 17.03 in the bituminous coal samples and 10.34 to 20.07 in the anthracite samples)reveal the intermediate igneous source rock composition of the *** ratio of the K_(2)O/Al_(2)O_(3)in the ash yield of the bituminous coal samples(0.03 to 0.09)may suggest the presence of kaolinite mixed with montmorillonite,while its range in the ash yield of the anthracite samples(0.16 to 0.27)may imply the presence of illite mixed with *** chemical index of alteration values may suggest the moderate to strong chemical weathering of the source rock under sub-humid to humid climatic *** plot of the bituminous coal samples in the A–CN–K diagram depicts the traditional weathering trend of parent rocks,but the anthracite samples plot near the illite feld and are a bit ofset from the weathering *** may imply the plausible infuences of the potassium-metasomatism at post coalifcation stages,which is further supported by high K_(2)O/Na_(2)O ratio(29.88–80.13).The Fourier transform infrared spectra further reveal the hydroxyl stretching intensity of illite in the anthracite samples substantiating the efect of the epigenetic *** decrease in total kaolinite intensity/compound intensity of quartz and feldspar may provide additional evidence towards this epigenetic event.

关键词： Himalayan fold-thrust belts Anthracite Potassium metasomatism Kaolinite to quartz-feldspar intensity ratio Montmorillonite stretching and bending intensities Illite-stretching frequency

Effect of invasive weed biochar amendment on soil enzymatic activity and respiration of coal mine spoil:a laboratory experiment study

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Biochar 2021年第4期3卷 519-533页

作者： Dipita ghosh Subodh kumar Maiti Ecological Restoration Laboratory Department of Environmental Science and EngineeringIndian Institute of Technology(Indian School of Mines)DhanbadJharkhand 826004India

Mining and excavation activities cause massive degradation of land,leading to complete loss of soil resources,vegetation,and *** spoils support invasive weeds(predominantly Lantana)which can strive in these harsh conditions,causing allelopathy during plantation stage of *** is hypothesised that biochar produced from invasive weeds will enhance enzymatic activity,CO_(2)flux and overall fertility of coal mine spoil.A 6-month incubation study was conducted on the effect of biochar amendment(2 and 3%,w/w)on mine spoil enzymatic activities(dehydrogenase,invertase,amylase and cellulase),respiration and coal mine spoil *** study showed that biochar significantly improved dehydrogenase(83%)and cellulase activity(78%)at 3%*** mean of enzymatic activities increased from 1.87 in control to 4.51 at 2%and 3.25 at 3%biochar *** spoil physio-chemical properties such as soil organic carbon(65%),cation exchange capacity(54%),bulk density(25%)and water holding capacity(19%),were improved significantly com-pared to the unamended mine *** amendment reduced mine spoil CO_(2)flux at 2%(2.85μmol CO_(2)m^(−2)s^(−1))and 3%(2.60μmol CO_(2)m^(−2)s^(−1))compared to control(4.92μmol CO_(2)m^(−2)s^(−1)).The cost of biochar production and application(2%,w/w)in pit plantation during reclamation is estimated to be 844 USD t ha−1(plantation density:1600 trees ha−1).On the basis of present study,biochar preparation from invasive weeds can be used for sustainable reclamation of coal mine spoil.

关键词： Lantana Geometric mean of enzymatic activity Economics Reclamation Pit plantation Coal mining

COVID-19 therapeutics:Clinical application of repurposed drugs and futuristic strategies for target-based drug discovery

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genes & Diseases 2023年第4期10卷 1402-1428页

作者： Sunny kumar Malini Basu Pratyasha ghosh Uttam Pal Mrinal K.ghosh Cancer Biology and Inflammatory Disorder Division Council of Scientific and Industrial Research-Indian Institute of Chemical Biology(CSIR-IICB)TRUE CampusCN-6SectoreVSalt LakeKolkata-700091&4Raja S.C.Mullick RoadJadavpurKolkata 700032India Department of Microbiology Dhruba Chand Halder CollegeDakshin BarasatWest Bengal 743372India Department of Economics Bethune CollegeUniversity of CalcuttaKolkata 700006India

Severe acute respiratory syndrome coronavirus-2(SARS-CoV-2)causes the compli-cated disease *** are continuously facing huge problems in the treatment of patients,as COVID-19-specific drugs are not available,hence the principle of drug repurpos-ing serves as a one-and-only ***,the repurposing of many drugs is underway;few of them are already approved by the regulatory bodies for their clinical use and most of them are in different phases of clinical *** in this review,our main aim is to discuss in detail the up-to-date information on the target-based pharmacological classification of repurposed drugs,the potential mechanism of actions,and the current clinical trial status of various drugs which are under repurposing since early *** last,we briefly proposed the probable phar-macological and therapeutic drug targets that may be preferred as a futuristic drug discovery approach in the development of effective medicines.

关键词： Clinical trials COVID-19 Drug discovery Pharmacology Repurposing of drugs SARS-CoV-2

Analysis of a fractional-order SIS epidemic model with saturated treatment

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Modeling, Simulation, and Scientific Computing 2021年第1期12卷 185-212页

作者： Soovoojeet Jana Manotosh Mandal swapan kumar Nandi T.K.Kar Department of Mathematics Ramsaday College Amta-711401HowrahWest BengalIndia Department of Mathematics Tamralipta Mahavidyalaya Tamluk-721636West BengalIndia Department of Mathematics Nayabasat P.M.Sikshaniketan Paschim Medinipur-721253West BengalIndia Department of Mathematics Indian Institute of Engineering Science and Technology Shibpur Howrah-711103West BengalIndia

In this paper,we propose and analyze a fractional-order SIS epidemic model with the saturated treatment and disease *** existence and uniqueness,nonnegativity and finiteness of solutions for our suggested model have been *** equilibria of the model are found and their local and global stability analyses are also ***,the conditions for fractional backward and fractional Hopf bifurcation are also analyzed in both the commensurate and incommensurate fractional-order *** study how the control parameter and the order of the fractional derivative play role in local as well as global stability of equilibrium points and Hopf *** have demonstrated the analytical results of our proposed model system through several numerical simulations.

关键词： Caputo fractional differentiation SIS epidemic model global asymptotic stability treatment control fractional Hopf bifurcation fractional backward bifurcation

Adaptive relay co-ordination using a busbar splitting approach for a system integrity protection scheme

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Protection and Control of Modern Power Systems 2022年第1期7卷 189-200页

作者： Rajesh Saikrishna Nilesh kumar Rajalwal Debomita ghosh Birla Institute of Technology Mesra Ranchi India (GRID:grid.418391.6) (ISNI:0000 0001 1015 3164)

Power system faults can often result in excessively high *** sustained for a long time,such high currents can damage system ***,it is desirable to operate the relays in the minimum possible *** this paper,a busbar splitting approach is used for adaptive relay setting and co-ordination purposes for a system integrity protec-tion scheme(SIPS).Whenever a fault occurs,the busbar splitting scheme splits a bus to convert a loop into a radial *** splitting schemes are chosen such that the net fault current is also *** splitting elimi-nates the dependency upon minimum breakpoints set(MBPS)and reduces the relay operating time,thus making it *** proposed methodology is incorporated into the IEEE 14-bus and IEEE 30-bus systems with single and multiple fault *** modeling and simulation carried out in ETAP,and the results of the proposed busbar splitting-based relay co-ordination are compared with the MBPS splitting-based relay co-ordination.

关键词： System integrity protection scheme(SIPS) Relay co-ordination Minimum breakpoint set(MBPS) Ward equivalent method Busbar splitting Wide area monitoring system(WAMS) ETAP

Data-driven containment control of discrete-time multi-agent systems via value iteration

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2020年第8期63卷 254-256页

作者： Zhinan PENG Jiangping HU Bijoy kumar ghosh School of Automation Engineering University of Electronic Science and Technology of China Department of Mathematics and Statistics Texas Tech University

Dear editor,We consider a containment control problem for a linear discrete-time (DT) multi-agent system via reinforcement learning. Containment control(CC) of multi-agent networks has received extensive attention in the control community in recent years [1–4]. CC is motivated by natural phenomena and has potential and vital applications in practical engineering. For example, one applica-

关键词： containment control multi-agent systems distributed control linear systems optimal control