检索结果-南通市图书馆

Anticholinergic medications even in therapeutic range can cause recurrence of psychosis

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

General Psychiatry 2020年第4期33卷 245-246页

作者： Soumitra Das Seshadri sekhar Chatterjee Barikar Chandrappa Malathesh Psychiatry Northwestern Mental HealthMelbourneVictoriaAustralia Psychiatry Diamond Harbour Medical CollegeDiamond HarbourIndia Psychiatry National Institute of Mental Health and Neuro SciencesBangaloreIndia

Anticholinergic drugs are commonly used in psychiatry to attenuate antipsychotic induced extrapyramidal syndrome(EPS).Psychosis as a side effect is generally explained under the rubric of anticholinergic toxicity or induced *** induced worsening of psychosis in patients with normal cognition is extremely rare in ***,we arepresenting a case of young female who was prescribed with multiple anticholinergics to reduce EPS,and each time had worsening of psychosis with intact *** then discussed the possible neurobiological explanation with special reference to muscarinic hypothesis of schizophrenia.

关键词： cholinergic drugs prescribed

New Preamble Sequence for WiMAX System with Improved Synchronization Accuracy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Intelligent Automation & Soft Computing 2023年第3期35卷 3187-3197页

作者： Suma sekhar Sakuntala S.Pillai S.Santhosh kumar Department of Electronics and Communication Engineering LBS Institute of Technology for WomenThiruvananthapuramKeralaIndia Mar Baselios College of Engineering and Technology ThiruvananthapuramKeralaIndia Department of Electronics and Communication Govt.Engineering CollegeIdukkiKeralaIndia

Worldwide Interoperability for Microwave Access(WiMAX)trusts Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing(MIMO-OFDM)combination for the deployment of physical layer functions and for connecting the medium access control to the wireless *** though Orthogonal Frequency Division Multiplexing(OFDM)facilitates reliable digital broadband transmission in the fading wireless channels,the presence of synchro-nization errors in the form of Carrier Frequency Offset(CFO)and Time Offset(TO)adversely affect the performance of OFDM based physical *** objective of this work is to improve the accuracy of the frequency and the time offset estimation in the WiMAX physical layer.A method to enhance the synchro-nization accuracy byﬁne-tuning the merit factor of the preamble sequence is sug-gested in this ***,a new preamble with improved synchronization accuracy is proposed for the WiMAX *** performance of the proposed preamble is evaluated in a Rayleigh fading channel and the results of simulations show that the Mean Square Error(MSE)in offset estimation is signiﬁcantly reduced and it outperforms the standard WiMAX preamble.

关键词： WiMAX MIMO OFDM time offset carrier frequency offset preamble sequence integrated sidelobe level merit factor

Medicago truncatula resources to study legume biology and symbiotic nitrogen fixation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Fundamental Research 2023年第2期3卷 219-224页

作者： Raja sekhar Nandety Jiangqi Wen kirankumar S.Mysore Institute for Agricultural Biosciences Oklahoma State University3210 Sam Noble ParkwayArdmoreOK 73401United States USDA-ARS Cereal Crops Research UnitEdward T.Schafer Agricultural Research CenterFargoND 58102United States Department of Biochemistry and Molecular Biology Oklahoma State UniversityStillwaterOK 74078United States

Medicago truncatula is a chosen model for legumes towards deciphering fundamental legume biology,especially symbiotic nitrogen *** genomic resources for *** include a completed whole genome sequence information for R108 and Jemalong A17 accessions along with the sparse draft genome sequences for other 226 *** *** genomic resources are complemented by the availability of mutant resources such as retrotransposon(Tnt1)insertion mutants in R108 and fast neutron bombardment(FNB)mutants in *** addition,several *** databases such as small secreted peptides(SSPs)database,transporter protein database,gene expression atlas,proteomic atlas,and metabolite atlas are available to the research *** review describes these resources and provide information regarding how to access these resources.

关键词： Medicago truncatula Model legume Medicago resources Tnt1 Mutagenesis Medicago gene atlas

Effects of electron-and hole-current hysteresis on trap characterization in organo-inorganic halide perovskite

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 Energy Chemistry 2023年第1期76卷 414-420,I0010页

作者： Fan Wu Sally Mabrouk Miaomiao Han Yanhua Tong Tiansheng Zhang Yuchen Zhang Raja sekhar Bobba Quinn Qiao School of Science and Huzhou key Lab of Materials for Energy Conversion and Storage Huzhou UniversityHuzhou 313000ZhejiangChina Mechanical and Aerospace Engineering Syracuse UniversitySyracuseNY13244United States

Charge trap density and carrier mobility of perovskite materials are the critical properties of perovskite solar *** space charge limited current(SCLC)method,which measures a dark current–voltage(I-V)curve of a single-carrier device has found extensive use for studying the trap density and charge carrier mobility in perovskite ***,it was found that the electron-and hole-current in organo-lead perovskite-based single-carrier device undergoes significant hysteresis under forward and reverse scanning due to the mobile *** addition,it was also observed that measuring history has a detrimental effect on hysteresis resulting in possible overestimation or underestimation of the extracted electrical values from the SCLC *** the forward/reverse scanning process,the mobile ionic defects enhance/shield the charge in the traps due to ionic charging/discharging,thereby increasing/reducing the interface barrier and net charge in the I-V scanning,which in turn affects the determination of transport properties of the *** results raise quite a few doubts over the direct application of classical SCLC measurements for the accurate characterization of intrinsic transport properties of the mixed ionicelectronic perovskite.

关键词： Organo-lead perovskite Ionic defects Space-charge-limited-current Trap density Mobility

A Study on the Structural Response of a PSC Inner Containment Dome with Large Openings Due to Prestress Transfer

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Nuclear Science and Technology 2014年第2期4卷 103-122页

作者： Anirudh A. Desai sekhar k. Chakrabarti Department of Civil Engineering Indian Institute of Technology Kanpur India

A linear three dimensional finite element (FE) study has been carried out to examine the structural response of a prestressed concrete (PSC) inner containment (IC) dome of reactor building (double containment system) of a typical Indian Nuclear Power Plant, having large steam generator (SG) openings with due emphasis on the local behaviour of the steel-concrete interfaces at the SG openings, due to initial prestress transfer. The predominant thrust of the study has been placed on the objective of predicting the possibilities of separation at the steel-concrete interface zones adjacent to the embedded plates (EPs) of the SG openings. Two types of modeling and analysis have been made to study the overall and local behaviour of the structure. Prestressing ducts, passive reinforcements and EPs have been included in the models in certain ways. For the FE analysis, the interface zone has been modeled using interface elements, the properties of which were derived from the results of past experiments conducted on steel plate-concrete inter-face specimens. The FE analysis results have been compared with the results of the past two FE analytical studies on the linear behaviour of the same PSC IC dome. Important observations have been made regarding dome deformation and stresses throughout the structure with special emphasis on the local behaviour of steel-concrete interfaces at and around the SG openings.

关键词： Prestressed Concrete Inner Containment Reactor Building Double Containment System Steel-Concrete Interface Steam Generator Openings Steel Embedded Plates

Protection against symptomatic SARS-CoV-2 infection during the second wave among individuals with pre-existing binding antibodies to SARS-CoV-2: A population-based study from Puducherry, India

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 2023年第10期16卷 476-478页

作者： Premkumar Ramasubramani Dhanajayan Govindan Nandini Balakrishnan krishnan Tamilarasu kadhiravan Sitanshu sekhar kar Department of Preventive and Social Medicine Jawaharlal Institute of Postgraduate Medical Education and Research(JIPMER)PuducherryIndia Department of General Medicine Jawaharlal Institute of Postgraduate Medical Education and Research(JIPMER)PuducherryIndia

During the COVID-19 pandemic,several studies have shown that severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection is associated with a substantial reduction in the risk of subsequent reinfection with a... 详细信息

关键词： infection acute respiratory

A Novel Single Switch High Gain DC-DC Converter Topology for Renewable Energy Systems

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 2021年第2期118卷 199-209页

作者： G.Indira kishore M.Premkumar Ramesh kumar Tripathi Chandra sekhar Nalamati GMR Institute of Technology RajamSrikakulamAndhra Pradesh532127India Motilal Nehru National Institute of Technology AllahabadUttar Pradesh211004India

Renewable energy with sources such as photovoltaic(PV)or fuel cells can be utilized for the generation of elec-trical *** these sources generate fewer voltage values and therefore require high gain converters to match with DC bus voltage in *** high gain converters can be implemented with switched capacitors to meet the required DC bus *** capacitors operate in a series and parallel combination during switch-ing operation and produce high static gain,limits reverse voltage that appears across the components.A novel converter is proposed that satisfies all the features such as high voltage gain,only one switch,forces less potential stress cross the components,ripple current is *** features of the proposed converter are verified through MATLAB/SIMULINk.

关键词： DC-DC converter high gain renewable energy switched capacitors

Multifunctional core-shell-like nanoarchitectures for hybrid supercapacitors with high capacity and long-term cycling durability

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 2019年第10期12卷 2597-2608页

作者： S.Chandra sekhar Goli Nagaraju Bhimanaboina Ramulu Sk.khaja Hussain D.Narsimulu Jae Su Yu Department of Electronic Engineering Institute for Wearable Convergence ElectronicsKyungHee University1732 Deogyeong-daeroGihurtg-guYongin-siGyeonggi-do 17104Republic of Korea1 Department of Chemical Engineering College of EngineeringKyung Hee University1732 Deogyeong-daeroGihung-guYongin-siGyeonggi-do 17104Republic of Korea

Transition metal oxide/hydroxide with multif unctional hierarchical nano structures has attracted widespread attention in supercapacitors(SCs)because of their large accessible surface area,high electrochemical activity and superior redox ***,core-shell-like copper(Cu)hydroxide nano tube arrays grafted nickel aluminum layered double hydroxide n anosheets were facilely synthesized on porous Cu foam(CH NTAs@NiAI LDH NSs)for use as an efficient battery-type electrode in hybrid *** the synergistic effects of NiAl LDH NSs on well-adhered CH NTAs/CF,the core-shell-like composite(prepared for 24 h)delivered a maximum areal capacity of 334.3 pAh/cm2 at a current density of 3 mA/cm2 in 2 M kOH electrolyte,which is comparatively higher than other samples synthesized at different growth ***,the core-shell-like CH NTAs@NiAI LDH NSs-24 demonstrated an outstanding cycling stability of 134.3%after 10,000 *** high capacity and stability of CH NTAs@NiAI LDH NSs-24,a pouch-type hybrid SC was further assembled with core-shell-like composite as a positive electrode and reduced graphene oxide as a negative electrode with a filter paper as a separator in aqueous alkaline *** hybrid SC showed a high areal capacity of 250 pAh/cm2 at 2 mA/cm2 with maximum areal energy and power densities of 181.9 pWh/cm2 and 24,991.5 pW/cm2,*** harvest!ng the solar energy via solar cell panel and subsequently delivering the stored en ergy to switching and proximity applicati ons also dem on strated the real-time applicability of our hybrid SCs.

关键词： copper hydroxide layered double hydroxides core-shell hybrid supercapacitors energy density self-powered devices

Vessels Segmentation in Angiograms Using Convolutional Neural Network: A Deep Learning Based Approach

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer Modeling in Engineering & Sciences 2023年第7期136卷 241-255页

作者： Sanjiban sekhar Roy Ching-Hsien Hsu Akash Samaran Ranjan Goyal Arindam Pande Valentina E.Balas School of Computer Science and Engineering Vellore Institute of TechnologyVellore632014India Department of Computer Science and Information Engineering Asia UniversityTaichung41354Taiwan Department of Medical Research China Medical University HospitalChina Medical UniversityTaichung406Taiwan Guangdong-Hong kong-Macao Joint Laboratory for Intelligent Micro-Nano Optoelectronic Technology School of Mathematics and Big DataFoshan UniversityFoshan528000China Medica Superspecialty Hospital Kolkata700099India Automation and Applied Informatics Aurel Vlaicu University of AradArad310130Romania

Coronary arterydisease(CAD)has become a significant causeof heart attack,especially amongthose 40yearsoldor *** is a need to develop new technologies andmethods to deal with this *** researchers have proposed image processing-based solutions for CADdiagnosis,but achieving highly accurate results for angiogram segmentation is still a *** different types of angiograms are adopted for CAD *** paper proposes an approach for image segmentation using ConvolutionNeuralNetworks(CNN)for diagnosing coronary artery disease to achieve state-of-the-art *** have collected the 2D X-ray images from the hospital,and the proposed model has been applied to *** augmentation has been performed in this research as it’s the most significant task required to be initiated to increase the dataset’s ***,the images have been enhanced using noise removal techniques before being fed to the CNN model for segmentation to achieve high *** the output,different settings of the network architecture undoubtedly have achieved different accuracy,among which the highest accuracy of the model is 97.61%.Compared with the other models,these results have proven to be superior to this proposed method in achieving state-of-the-art results.

关键词： Angiogram convolution neural network coronary artery disease diagnosis of CAD image segmentation