检索结果-南通市图书馆

Journal of Materials Science & Technology 2013年第12期29卷 1116-1122页

作者： Z.A.luo g.M.Xie Z.Y.Ma g.l.wang g.D.wang State Key laboratory of Rolling and Automation Northeastern University Shenyang National laboratory for Materials Science Institute of Metal ResearchChinese Academy of Sciences

As-extruded ZK60 and ZK60-Y magnesium alloy plates were successfully processed via friction stir processing （FSP） at a tool rotation rate of 1600 r/rain and a traverse speed of 200 mm/min. FSP resulted in the formation of equiaxed recrystallized microstructures with the average grain sizes of ,-8.5 and -4.7 μm in the ZK60 and ZK60-Y alloys, respectively. Moreover, FSP broke and dispersed the MgZn2 and W-phase （Mg3Zn3Y2） particles and dissolved MgZn2 phase in the FSP ZK60 alloy. With the addition of rare earth element yttrium （Y） into the ZK60 alloy, the ratio of the high angle grain boundaries （HAgBs） in the FSP alloys increased from 64% to 90%, and a certain amount of twins appeared in the FSP ZK60-Y alloy. The maximum elongation of 1200% and optimum strain rate of 3 X 10-3 s-1 achieved at 450 °C in the FSP ZK60-Y alloy were substantially higher than those of the FSP ZK60 alloy. This is attributed to the fine grains with high ratio of HAgBs and the distribution of a large number of dispersed second phase particles with high thermal stability in the FSP ZK60-Y alloy. grain boundary sliding was identified as the primary deformation mechanism in the FSP ZK60 and ZK60-Y alloys from the superplastic data analyses and surficial morphology observations.

关键词： Magnesium alloy Friction stir processing Rare earth element Microstructure Superplasticity

STCF conceptual design report (Volume 1): Physics & detector

在线全文

学校读者我要写书评

暂无评论

Frontiers of physics 2024年第1期19卷 1-154页

作者： M.Achasov X.C.Ai l.P.An R.Aliberti Q.An X.Z.Bai Y.Bai O.Bakina A.Barnyakov V.Blinov V.Bobrovnikov D.Bodrov A.Bogomyagkov A.Bondar I.Boyko Z.H.Bu F.M.Cai H.Cai J.J.Cao Q.H.Cao X.Cao Z.Cao Q.Chang K.T.Chao D.Y.Chen H.Chen H.X.Chen J.F.Chen K.Chen l.l.Chen P.Chen S.l.Chen S.M.Chen S.Chen S.P.Chen W.Chen X.Chen X.F.Chen X.R.Chen Y.Chen Y.Q.Chen H.Y.Cheng J.Cheng S.Cheng T.g.Cheng J.P.Dai l.Y.Dai X.C.Dai D.Dedovich A.Denig I.Denisenko J.M.Dias D.Z.Ding l.Y.Dong W.H.Dong V.Druzhinin D.S.Du Y.J.Du Z.g.Du l.M.Duan D.Epifanov Y.l.Fan S.S.Fang Z.J.Fang g.Fedotovich C.Q.Feng X.Feng Y.T.Feng J.l.Fu J.gao Y.N.gao P.S.ge C.Q.geng l.S.geng A.gilman l.gong T.gong B.gou W.gradl J.l.gu A.guevara l.C.gui A.Q.guo F.K.guo J.C.guo J.guo Y.P.guo Z.H.guo A.guskov K.l.Han l.Han M.Han X.Q.Hao J.B.He S.Q.He X.g.He Y.l.He Z.B.He Z.X.Heng B.l.Hou T.J.Hou Y.R.Hou C.Y.Hu H.M.Hu K.Hu R.J.Hu W.H.Hu X.H.Hu Y.C.Hu J.Hua g.S.Huang J.S.Huang M.Huang Q.Y.Huang W.Q.Huang X.T.Huang X.J.Huang Y.B.Huang Y.S.Huang N.Hüsken V.Ivanov Q.P.Ji J.J.Jia S.Jia Z.K.Jia H.B.Jiang J.Jiang S.Z.Jiang J.B.Jiao Z.Jiao H.J.Jing X.l.Kang X.S.Kang B.C.Ke M.Kenzie A.Khoukaz I.Koop E.Kravchenko A.Kuzmin Y.lei E.levichev C.H.li C.li D.Y.li F.li g.li g.li H.B.li H.li H.N.li H.J.li H.l.li J.M.li J.li l.li l.li l.Y.li N.li P.R.li R.H.li S.li T.li W.J.li X.li X.H.li X.Q.li X.H.li Y.li Y.Y.li Z.J.li H.liang J.H.liang Y.T.liang g.R.liao l.Z.liao Y.liao C.X.lin D.X.lin X.S.lin B.J.liu C.W.liu D.liu F.liu g.M.liu H.B.liu J.liu J.J.liu J.B.liu K.liu K.Y.liu K.liu l.liu Q.liu S.B.liu T.liu X.liu Y.W.liu Y.liu Y.l.liu Z.Q.liu Z.Y.liu Z.W.liu I.logashenko Y.long C.g.lu J.X.lu N.lu Q.F.lü Y.lu Y.lu Z.lu P.lukin F.J.luo T.luo X.F.luo Y.H.luo H.J.lyu X.R.lyu J.P.Ma P.Ma Y.Ma Y.M.Ma F.Maas S.Malde D.Matvienko Z.X.Meng R.Mitchell A.Nefediev Y.Nefedov S.l.Olsen Q.Ouyang P.Pakhlov g.Pakhlova X.Pan Y.Pan E.Passemar Y.P.Pei H.P.Peng l.Peng X.Y.Peng X.J.Peng K.Peters S.Pivovarov E.Pyata B.B.Qi Y.Q.Qi W.B.Qian Y.Qian C.F.Qiao J.J.Qin J.J.Qin l.Q.Qin X.S.Qin T.l.Qiu J.Rademacker C.F.Redmer H.Y.Sang Anhui University Hefei 230039China Beihang University Beijing 100191China Budker Institute of Nuclear Physics Novosibirsk 630090Russia CAS Key laboratory of Theoretical Physics Institute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China Cavendish laboratory University of CambridgeJJ Thomson AveCambridge CB30HEUnited Kingdom Central China Normal University Wuhan 430079China Central South University Changsha 410083China China University of geosciences Wuhan 430074China China University of Mining and Technology Xuzhou 221116China École Polytechnique Fédérale de lausanne(EPFl) LausanneSwitzerland Fudan University Shanghai 200433China goethe University Frankfurt D-60325 Frankfurt am MainGermany guangxi Normal University Guilin 541004China guangxi Uninversity Nanning 530004China Hangzhou Institute for Advanced Study UCASHangzhou 310024China Hebei Normal University Shijiazhuang 050024China Hebei University Baoding 071002China Hefei University of Technology Hefei 230601China Helmholtz Institute Mainz Staudinger Weg 18D-55099 MainzGermany Henan Normal University Xinxiang 453007China Henan University Kaifeng 475004China High Energy Physics Center Chung-Ang UniversitySeoul 06974Korea Higher School of Economy 11 Pokrovsky Bulvar Moscow 109028Russia Huangshan University Huangshan 245000China Hubei University of Automotive Technology Shiyan 442002China Hunan Normal University Changsha 410081China Hunan University of Science and Technology Xiangtan 411201China Hunan University Changsha 410082China Indiana University BloomingtonIndiana 47405USA Inner Mongolia University Hohhot 010021China Institute of Advanced Science Facilities Shenzhen 518107China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Institute of Physics Academia SinicaTaipeiTaiwan 11529China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China Jilin University Changch

The superτ-charm facility(STCF)is an electron–positron collider proposed by the Chinese particle physics *** is designed to operate in a center-of-mass energy range from 2 to 7 geV with a peak luminosity of 0.5×10^(35) cm^(–2)·s^(–1) or *** STCF will produce a data sample about a factor of 100 larger than that of the presentτ-charm factory—the BEPCII,providing a unique platform for exploring the asymmetry of matter-antimatter(charge-parity violation),in-depth studies of the internal structure of hadrons and the nature of non-perturbative strong interactions,as well as searching for exotic hadrons and physics beyond the Standard *** STCF project in China is under development with an extensive R&D *** document presents the physics opportunities at the STCF,describes conceptual designs of the STCF detector system,and discusses future plans for detector R&D and physics case studies.

关键词： electron–positron collider tau-charm region high luminosity STCF detector conceptual design

Stress-rupture behavior of a Re-containing Ni-base single crystal superalloy at high temperatures

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 Materials Science & Technology 2023年第32期163卷 237-244页

作者： g.l.wang D.Q.Qi J.l.liu J.D.liu J.g.li Y.Z.Zhou X.F.Sun Institute of Metal Research Chinese Academy of SciencesShenyang 110016China

A Re-containing Ni-base single crystal superalloy was used to investigate the elementary processes associated with stress-rupture behavior at different temperatures where theγʹrafting *** 900°C,the rupture behavior is mainly determined by the multiplication of dislocations within the wideningγchannels,which is closely linked with the propagation of microcracks along the inherentγ/γʹ*** rapid formation of lamellaγ/γʹraft structure,along with the developed-well interfacial dislocation networks,and its elastic instability are primarily responsible for the rupture behavior at 1100°*** is a clear curvature tendency in the larson-Miller plot of stress-rupture lifetime in relation to stress at high *** indicates that the influence extent ofγʹrafting on stress-rupture behavior is sensitive to the acting conditions of temperature and stress.

关键词： Ni-based single crystal superalloy Re effect γʹrafting Stress-rupture behavior Elementary process larson-Miller plot

Surface Embedding of Non-Bipartite k-Extendable graphs

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Annals of Applied Mathematics 2022年第1期38卷 1-24页

作者： Hongliang lu David g.l.wang School of Mathematics and Statistics Xi'an Jiaotong UniversityXi'anShaanxi 710049China School of Mathematics and Statistics&MIIT Key laboratory ofMathematical Theory and Computation in Information Security Beijing Institute of TechnologyBeijing 102400China

For every surface,we find the minimum number k such that every non-bipartite graph that is embeddable in that surface is not *** particular,we construct a family of 3-extendable graphs which we call bow-tie *** confirms the existence of an infinite number of 3-extendable non-bipartite graphs that are embeddable in the Klein bottle.

关键词： Non-bipartite graph matching extension surface embedding.

The white—radiation aynamic topography experimental system at the BSRF

在线全文

学校读者我要写书评

暂无评论

同步辐射装置用户科技论文集 1998年第1期 148-150页

作者： g.l.wang J.H.Jiang 等

Effects of phytosterols on Milk production of Dairy Cow in late lactation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effects of phytosterols on Milk production of Dairy Cow in L...

OptogPT: A foundation model for inverse design in optical multilayer thin film structures

中国畜牧兽医学会第七届养牛学分会2009年学术研讨会

作者： Z.H.Jin,Z.Y.Han,g.l.wang,g.B.Zhou (College of Animal Sciences,Nanjing Agricultural University,Nanjing 210095,PR China)

＜正＞Thirty-three Chinese-Holstein cows（27 primiparous and 6 multiparous） entered the study to investigate the possibility plant sterols used as an additive in late lactation of dairy *** were three treatment groups according to the age,fetal number,milk production and date of lactation,received common diet mixing 0,200 or 800,mg/d of phytosterols and average treatment had 11 *** study lasted 9 weeks. Milk yield was recorded twice a week weighed in a bucket,and milk samples were taken at 1430h of midweek for milk ingredients *** milk production of the treatment cows was 1.71 kg/days and 0.44kg/days higher than the control cows,*** fat proportion was also higher in the treatment cows.A tendency towards decreased milk protein,lactose,Non-fat solids,and total solid percentage were observed in the treatment ***,there had no significant *** also found that Milk ketone, MUN and SCC had also decrease tendency in the treatment *** ketone and MUN were significant lower than the control cows among the treatment cows（P＜0.05 or 0.01）.It is suggested that 200mg phytosterols for per cow each day is more economical and effective which could improve nutrient utilization and maintain animal health.

关键词： phytosterols milk production dairy cow

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Opto-Electronic Advances 2024年第7期7卷 4-16页

作者： Taigao Ma Haozhu wang l.Jay guo Department of Physics University of MichiganAnn ArborMichigan 48109USA Department of Electrical Engineering and Computer Science University of MichiganAnn ArborMichigan 48109USA

Optical multilayer thin film structures have been widely used in numerous photonic ***,existing inverse design methods have many drawbacks because they either fail to quickly adapt to different design targets,or are difficult to suit for different types of structures,e.g.,designing for different materials at each *** methods also cannot accommodate versatile design situations under different angles and *** addition,how to benefit practical fabrications and manufacturing has not been extensively considered *** this work,we introduce OptogPT(Opto generative Pretrained Transformer),a decoder-only transformer,to solve all these drawbacks and issues simultaneously.

关键词： multilayer thin film structure inverse design foundation models deep learning structural color

The role of a novel antibacterial substance,cyclic opine-producing lacticaseibacillus rhamnosus lS8 in ameliorating ulcerative colitis:a fecal microbiota transplantation study

在线全文

学校读者我要写书评

暂无评论

Food Science and Human Wellness 2024年第2期13卷 778-790页

作者： Tao wang Shuang wang Shuchen Dong Ruiling wang Shuxuan wang Jie Yang Xin wang Xin lü College of Food Science and Engineering Northwest Agriculture and Forestry UniversityYangling 712100China Faculty of Food Science and Engineering Kunming University of Science and TechnologyKunming 650500China School of life Science and Technology Xinjiang UniversityUrumqi 830046China

Intestinal microbiota imbalance may worsen the progression of ulcerative colitis(UC).lacticaseibacillus rhamnosus lS8(lR)has the potential ability to regulate microbiota through producing a novel antibacterial substance,cyclic opine:*** study aimed to investigate whether lR could ameliorate dextran sulfate sodium-induced UC in mice via modulating intestinal microbiota using fecal microbiota transplantation(FMT)*** results showed that both lR and FMT attenuated UC as evidenced by 1)alleviating disease activity index and colonic pathology;2)up-regulating MUCs and tight junction proteins;3)increasing oxidative mediators and decreasing antioxidant mediators;4)down-regulating proinflammatory cytokines and *** results were mainly attributable to the microbiota-regulating effect of lR,including increasing beneficial bacteria(like Akkermansia)and its related SCFAs,while decreasing harmful bacteria(like Proteobacteria)and its related lPS,thereby suppressing the hyperactivation of TlR4/NF-κB ***,lR can alleviate UC and is a potential dietary supplement to attenuate UC.

关键词： gut barrier gut microbiota Fecal microbiota transplantation lacticaseibacillus rhamnosus Oxidative stress Ulcerative colitis

Study on the dynamic mechanical properties of winding-block axial structure considering short circuit strain rate effect

在线全文

学校读者我要写书评

暂无评论

High Voltage 2024年第2期9卷 380-390页

作者： Xinyu wang Ping wang Jianghai geng Zikang Zhang Fangcheng lü Shuguo gao Hebei Provincial Key laboratory of Power Transmission Equipment Security Defense North China Electric Power UniversityBaodingChina State grid Hebei Electric Power Research Institute ShijiazhuangChina

Transformers may suffer multiple short-circuit impacts during long-term operation,and axial instability is one of the typical types of serious accidents caused by short-circuit *** axial instability form of the winding-block structure is analysed,and the dynamic solution of the winding short-circuit electromagnetic force is obtained by estab-lishing the three-dimensional magnetic-circuit-force multi-physical field coupling simulation *** influence of strain rate on the cushion block constitutive equation is corrected,and the modified model is verified by short-circuit impact test and quasi-static *** research results show that for 110 kV 31.5 MVA transformers,the maximum electromagnetic axial resultant force of winding is 363.16 kN,and the ultimate tilt force is 1214.2 *** pre-tightening force configuration is accordingly recom-mended to range from 363.16 to 608.28 kN,which is narrowed by 18.49%compared with the static calculation method;Meanwhile,adding a logarithmic strain rate correction term to the classical constitutive equation of the cushion block can achieve a good correction of the stress-strain relationship with the coefficient of determination above 0.99,and the cushion block has a larger elastic modulus under high strain rate *** research results provide an important theoretical reference for the axial stability structure of transformers.

关键词： axial correction structure

Variational data encoding and correlations in quantum-enhanced machine learning

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 Physics B 2024年第9期33卷 298-306页

作者： Ming-Hao wang Hua l¨u School of Physics Hubei UniversityWuhan 430062China School of Science Hubei University of TechnologyWuhan 430068China

leveraging the extraordinary phenomena of quantum superposition and quantum correlation,quantum computing offers unprecedented potential for addressing challenges beyond the reach of classical *** paper tackles two pivotal challenges in the realm of quantum computing:firstly,the development of an effective encoding protocol for translating classical data into quantum states,a critical step for any quantum *** encoding strategies can significantly influence quantum computer ***,we address the need to counteract the inevitable noise that can hinder quantum *** primary contribution is the introduction of a novel variational data encoding method,grounded in quantum regression algorithm *** adapting the learning concept from machine learning,we render data encoding a learnable *** allowed us to study the role of quantum correlation in data *** numerical simulations of various regression tasks,we demonstrate the efficacy of our variational data encoding,particularly post-learning from instructional ***,we delve into the role of quantum correlation in enhancing task performance,especially in noisy *** findings underscore the critical role of quantum correlation in not only bolstering performance but also in mitigating noise interference,thus advancing the frontier of quantum computing.

关键词： quantum machine learning variational data encoding quantum correlation