检索结果-南通市图书馆

Editorial for the special Issue on Emerging Technology and Advanced Application of Nondestructive detection for Power Equipment

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Electrical Engineering 2024年第1期10卷 1-2页

作者： Li J. mei H. Li s. Tianjin University China Tsinghua shenzhen International Graduate school China Lanzhou Jiaotong University China

The rapid development of clean and renewable energy technologies represented by wind and solar energy,as well as the continuous growth of load demand,have put forward higher requirements for the safe operation of the power *** performance of power equipment based on traditional dielectric materials is often limited by various defects generated during molding,transportation,assembly,and operation,which cannot meet the reliability requirements of power systems in the new *** detection is an essential technical method in industrial development,which can detect and evaluate the defect and damage status of in-service equipment,key components,and materials without damaging the object.

关键词： service Application operation

Carbon nanotube integrated circuit technology:purification,assembly and integration

维普期刊数据库评论

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 Extreme Manufacturing 2024年第3期6卷 120-138页

作者： Jianlei Cui Fengqi Wei Xuesong mei state Key Laboratory for Manufacturing systems Engineering Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China

As the manufacturing process of silicon-based integrated circuits(ICs)approaches its physical limit,the quantum effect of silicon-based field-effect transistors(FETs)has become increasingly *** the burgeoning carbon-based semiconductor technology has become one of the most disruptive technologies in the post-Moore *** one-dimensional nanomaterials,carbon nanotubes(CNTs)are far superior to silicon at the same technology nodes of FETs because of their excellent electrical transport and scaling properties,rendering them the most competitive material in the next-generation ICs ***,certain challenges impede the industrialization of CNTs,particularly in terms of material preparation,which significantly hinders the development of CNT-based *** on CNT-based ICs technology,this review summarizes its main technical status,development trends,existing challenges,and future development directions.

关键词： carbon nanotubes integrated circuits field-effect transistors post-Moore

Process in laser drilling of deep microholes without taper on metal materials

在线全文

学校读者我要写书评

暂无评论

science China(Technological sciences) 2024年第1期67卷 37-59页

作者： FAN RunZe mei Xuesong CUI JianLei state Key Laboratory for Manufacturing systems Engineering Xi’an Jiaotong UniversityXi’an 710054China

deep microhole machining is currently a prominent research area within the aerospace field,encompassing blade film cooling and fuel injection control ***,taper defects in metal materials may lead to performance degradation or even structural damage over a component’s *** and helical drilling,facilitated by ultrashort pulse lasers,have proven more suitable for achieving high-precision,deep holes in metal ***,excessive repetition rates can also result in severe thermal *** methods are commonly employed for controlling taper,including parameter optimization,assistance,and secondary *** laser beam drilling is widely utilized and has been integrated into relevant machining systems for commercial *** deep microholes include film cooling holes and injection *** drilling is a potential machining method for new materials in the aerospace *** laser drilling processing has been studied,numerous related scientific challenges and technical difficulties must be addressed before practical implementation.

关键词： aerospace laser drilling deep microhole taper control

Graphdiyne(C_(n)H_(2n-2))as an"electron transfer bridge"boosting photocatalytic hydrogen evolution over Zn_(0.5)Co_(0.5)s/Mos_(2)s-scheme heterojunction

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第5期43卷 1999-2014页

作者： mei Li Jing-Zhi Wang Zhi-Liang Jin school of Chemistry and Chemical Engineering North Minzu UniversityYinchuan 750021China school of Chemistry and Chemical Engineering Ningxia Key Laboratory of Solar Chemical Conversion TechnologyKey Laboratory for Chemical Engineering and TechnologyState Ethnic Affairs CommissionNorth Minzu UniversityYinchuan 750021China

In the process of photocatalytic water cracking,the migration rate and utilization rate of photogenerated charges determine the hydrogen evolution performance of the *** this paper,a carbon isotope superconducting material graphdiyne(GdY)is prepared by mechanical ball milling and introduced into the s-scheme heterojunction Zn_(0.5)Co_(0.5)s/Mos_(2)inorganic *** terms of hydrogen evolution kinetics,GdY acts as an electron bridge,not only accelerating the migration of photogenerated carriers but also improving the utilization of photogenerated ***,the large twodimensional layer provides more loading and anchoring points for Zn_(0.5)Co_(0.5)s/Mos_(2),which increases the number of active *** ternary composite catalyst 20%GdY/Zn_(0.5)Co_(0.5)s/Mos_(2)(20-GCsM)generates 69.94μmol of hydrogen(5 h)in triethanolamine *** is 2.97 and1.80 times higher than Zn_(0.5)Co_(0.5)s and Zn_(0.5)Co_(0.5)s/Mos_(2),*** the cyclic experiment,it still has stable hydrogen evolution performance after standing for24 h(under dark conditions).In addition,the potential mechanism of photocatalytic hydrogen evolution is demonstrated through in-situ X-ray photoelectron *** work provides a reference for further research in the field of introducing carbon materials into photocatalytic systems and improving the utilization of photogenerated charges.

关键词： Graphdiyne s-scheme heterojunction Electron transfer bridge Hydrogen production

Analysis of the role of dihydromyricetin derived from vine tea(Ampelopsis grossedentata)on multiple myeloma by activating sTAT1/RIG-I axis

在线全文

学校读者我要写书评

暂无评论

Oncology Research 2024年第8期32卷 1359-1368页

作者： WEI JIANG mei ZHOU department of Hematology Shaoxing Shangyu People’s HospitalShaoxing312000China department of Hematology Zhuji People’s HospitalShaoxing311800China

Multiple myeloma(MM)is a plasma cell malignancy and remains incurable as it lacks effective curative approaches;thus,novel therapeutic strategies are desperately *** study aimed to explore the therapeutic role of dihydromyricetin(dHM)in MM and explore its *** MM and normal plasma samples,human MM cell lines,and normal plasma cells were used for in vitro *** counting kit-8(CCK-8),flow cytometry,and trans-well assays were performed for the assessment of cell viability,apoptosis,migration,and invasion,*** real-time polymerase chain reaction(qRT-PCR)was employed to assess the mRNA expression of signal transducer and activator of transcription 1(sTAT1)and retinoic acid-inducible gene I(RIG-I).Western blotting was employed to assess E-cadherin,N-cadherin,signal transducer,sTAT1,p-sTAT1,and RIG-I protein expression.A tumor xenograft model was used for in vivo ***,dihydromyricetin(dHM)dose-dependently restrained viability,apoptosis,migration,and invasion,and facilitated apoptosis of U266 *** dHM treatment,the Ecadherin level was increased and the N-cadherin level was decreased in U266 and RPMI-8226 cells,suggesting the inhibitory effects of dHM on epithelial-mesenchymal transition(EMT)in ***,the levels of p-sTAT1/sTAT1 and RIG-I were down-regulated in ***,the sTAT1 inhibitor fludarabine undid the suppressive effect of dMH on the malignant characteristics of U266 ***,dHM inhibited MM tumor growth and EMT,and activated sTAT1/RIG-I pathway in ***,this study first revealed that dHM can restrain EMT and tumor growth in MM by activating sTAT1/RIG-I signaling,which provides a novel drug for the treatment of MM.

关键词： dihydromyricetin Multiple myeloma Epithelial-mesenchymal transition Tumor growth

Improved length of calcium sulfate crystal seeds and whiskers via ball milling and hydration treatment

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2024年第7期71卷 102-109页

作者： Yuke Li Yuxin Liu Jizhen Huang Yi mei Faculty of Chemical Engineering Kunming University of Science and TechnologyKunming 650500China Yunnan Provincial Key Laboratory of Energy saving in Phosphorus Chemical Engineering and New Phosphorus Materials Kunming University of Science and TechnologyKunming 650500China

Elucidating the effect of growth periods on the quality of calcium sulfate whiskers(CsWs)prepared from calcium sulfate dihydrate(dH)is ***,crystal seeds and whiskers were prepared from dH in a water–glycerol *** whiskers were obtained from crystal seeds prepared via hydration of dH for 30 s than via ball milling for 5 min followed by hydration for 20 *** attachment of cetyltrimethyl ammonium bromide and glycerol additives to the whisker tops promoted whisker *** whisker sponges exhibited good thermal barrier properties and compression cycle stability.

关键词： Hemihydrate gypsum whisker Hydration Ball milling/hydration Crystal seed Growth process

Risk Constrained self-scheduling of AA-CAEs Facilities in Electricity and Heat Markets:A distributionally Robust Optimization Approach

在线全文

学校读者我要写书评

暂无评论

CsEE Journal of Power and Energy systems 2024年第3期10卷 1159-1167页

作者： Zhiao Li Laijun Chen Wei Wei shengwei mei department of Electrical Engineering Tsinghua UniversityBeijing 100084China New Energy(Photovoltaic)Industry Research Center Qinghai UniversityXining 810016China IEEE

Advanced adiabatic compressed air energy storage(AA-CAEs)has the advantages of large capacity,long service time,combined heat and power generation(CHP),and does not consume fossil fuels,making it a promising storage technology in a low-carbon *** appropriate self-scheduling model can guarantee AA-CAEs’s profit and attract ***,very few studies refer to the cogeneration ability of AA-CAEs,which enables the possibility to trade in the electricity and heat markets at the same *** this paper,we propose a multimarket self-scheduling model to make full use of heat produced in *** volatile market price is modeled by a set of inexact distributions based on historical data through-***,the self-scheduling model is cast as a robust risk constrained program by introducing stackelberg game theory,and equivalently reformulated as a mixed-integer linear program(MILP).The numerical simulation results validate the proposed method and demonstrate that participating in multienergy markets increases overall *** impact of uncertainty parameters is also discussed in the sensibility analysis.

关键词： Advanced adiabatic compressed air energy storage(AA-CAEs) conditional value at risk(CVaR) distributionally robust optimization(dRO) heat market self-scheduling stackelberg game

User Churn Prediction Hierarchical Model Based on Graph Attention Convolutional Neural Networks

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Communications 2024年第7期21卷 169-185页

作者： mei Miao Tang Miao Zhou Long school of Economics and Management Beijing Jiaotong UniversityBeijing 100044China school of Automotive and Rail Transit Nanjing Institute of TechnologyNanjing 211167China Nanjing Intelligent Aviation Research Institute Co. LtdNanjing 210014China

The telecommunications industry is becoming increasingly aware of potential subscriber churn as a result of the growing popularity of smartphones in the mobile Internet era,the quick development of telecommunications services,the implementation of the number portability policy,and the intensifying competition among *** the same time,users'consumption preferences and choices are *** churn prediction models must be created in order to accurately predict the churn tendency,since keeping existing customers is far less expensive than acquiring new *** conventional or learning-based algorithms can only go so far into a single subscriber's data;they cannot take into consideration changes in a subscriber's subscription and ignore the coupling and correlation between various ***,the current churn prediction models have a high computational burden,a fuzzy weight distribution,and significant resource economic *** prediction algorithms involving network models currently in use primarily take into account the private information shared between users with text and pictures,ignoring the reference value supplied by other users with the same *** work suggests a user churn prediction model based on Graph Attention Convolutional Neural Network(GAT-CNN)to address the aforementioned *** main contributions of this paper are as follows:Firstly,we present a three-tiered hierarchical cloud-edge cooperative framework that increases the volume of user feature input by means of two aggregations at the device,edge,and cloud ***,we extend the use of users'own data by introducing self-attention and graph convolution models to track the relative changes of both users and packages ***,we build an integrated offline-online system for churn prediction based on the strengths of the two models,and we experimentally validate the efficacy of cloudside collaborative training and *** summary,the churn

关键词： cloud-edge cooperative framework GAT-CNN self-attention and graph convolution models subscriber churn prediction

Flexible ultra-thin super-resolution endoscopy

在线全文

学校读者我要写书评

暂无评论

science China(Physics,Mechanics & Astronomy) 2024年第3期67卷 171-172页

作者： George s.d.Gordon department of Electrical and Electronic Engineering University of NottinghamNottingham NG7 2RDUK

In recent years, multimode fiber(MMF) has become an important tool for high-resolution endoscopic imaging in narrow channels(e.g., in the brain via needles or inside blood vessels) due to its high mode density and fine diameter, typically stacle to widespread deployment in applications is that realistic perturbations, including bending, twisting and changes in temperature, cause unacceptable image degradation.

关键词： fiber resolution typically