检索结果-南通市图书馆

Acta Geologica Sinica(English Edition) 2008年第2期82卷 409-414页

作者： wu Suoping wu Cailai WANG Meiying CHEN qilong Joseph L. WOODEN Institute of Geology CAGS Beijing 1-0003-7 China Zhengzhou Industrial and Trade School Zhengzhou Henan 450007 China Capital Normal University Beijing 100037 China Stanford University CA USA

The Tula A2-subtype granite pluton is located between the Altun fault and its branching fault. According to the geological, geochemical, REE and trace elements characteristics, it belongs to the A2 （PA） subtype granite. The SHRIMP U-Pb zircon dating gives a result of 385.2±8.1 Ma, which is located between the Middle and Late Devonian in the international stratigraphic chart, and can be regarded as the crystallization age of the Tula granite. The study indicates that the Tula area was in a local extensional environment in the end of the Middle Devonian, and that environment was probably related to the synchronized strike-slip activity of the Altun fault.

关键词： Altun fault A2-subtype SHRIMP U-Pb end of the Middle Devonian

Synthetic studies towards(-)-deserpidine:Total synthesis of the stereoisomer and derivative of (-)-deserpidine

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2021年第1期32卷 401-404页

作者： Pingzhou wu qilong Zhou Xiao-Yu Liu Fei Xue Yong Qin Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial TechnologyWest China School of PharmacySichuan UniversityChengdu 610041China School of Pharmaceutical Sciences and the Innovative Drug Research Centre Chongqing UniversityChongqing 401331China

The asymmetric synthesis of 16,17,20-epi-deserpidine and a derivative of(-)-deserpidine has been *** feature s in the assembly of the pentacyclic framework include a visible-light photocatalytic intra-/inter-/intramolecular radical cascade reaction to construct the tetracyclic ABCD ring system in one-pot and an intramolecularaldol reaction to forge the cyclohexane E ring.

关键词： Yohimbine alkaloids Deserpidine Photoredox catalytic radical cascade reaction Total synthesis

基于合同能源管理的集中供热信息化管理平台节能改造案例分析

在线全文

学校读者我要写书评

暂无评论

建筑节能（中英文） 2023年第12期51卷 59-63页

作者：刘士选吴琪珑朱茂霞李雨桐陈君王宁临沂市恒源热力集团有限公司山东临沂276700 同方节能工程技术有限公司北京100083

合同能源管理作为市场化手段,在节能改造中发挥着积极的作用。新形势下,合同能源管理模式由于市场化机制灵活,已经成为节能服务企业的主要经营模式之一,并在集中供热系统节能改造中发挥着重要的作用。以山东地区某集中供热信息化管理平... 详细信息

合同能源管理作为市场化手段,在节能改造中发挥着积极的作用。新形势下,合同能源管理模式由于市场化机制灵活,已经成为节能服务企业的主要经营模式之一,并在集中供热系统节能改造中发挥着重要的作用。以山东地区某集中供热信息化管理平台节能改造为研究对象,利用节能效益分享型合同能源管理模式,对原有热网现状和用能情况提出综合技术方案并对现系统进行提升改造。项目实施后,集团下属各供热分公司取暖季节能总量整体呈逐年上升的趋势,热网运行管理水平和供热能力大大提高,通过对近6个采暖季的节能数据分析,累计节能效益1.79亿元以上,产生了较好的经济效益和节能效益,为热力公司供热系统整体改造提供了良好的借鉴。

关键词：合同能源管理集中供热信息化管理平台节能改造

基于阿里云的垃圾图像识别分类系统的设计与实现

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

信息与电脑 2022年第3期34卷 150-152页

作者：吴奇龙王丽丽黄星宇吉亚军杭益柳南通理工学院计算机与信息工程学院江苏南通226000

近年来,随着国家可持续发展战略的不断推进,垃圾分类处理问题显得尤为重要。为解决目前传统垃圾分类过程中存在的垃圾种类繁多、人工分类效率低等难点问题,设计并实现了一种基于阿里云的垃圾图像识别分类系统。该系统使用方便,识别准确... 详细信息

近年来,随着国家可持续发展战略的不断推进,垃圾分类处理问题显得尤为重要。为解决目前传统垃圾分类过程中存在的垃圾种类繁多、人工分类效率低等难点问题,设计并实现了一种基于阿里云的垃圾图像识别分类系统。该系统使用方便,识别准确率较高,能有效提高垃圾分类效率,降低了垃圾分类难度,对垃圾分类政策的推广有很好的辅助作用。

关键词：垃圾分类图像识别阿里云人工智能

MoS2-intercalated carbon hetero-layers bonded on graphene as electrode materials for enhanced sodium/potassium ion storage

在线全文

学校读者我要写书评

暂无评论

Nano Research 2023年第1期16卷 473-480页

作者： Laiying Jing Junwei Sun Chaoyang Sun Di wu Gang Lian Deliang Cui qilong Wang Haohai Yu State Key Lab of Crystal Materials Shandong UniversityJinan 250100China School of Materials Science and Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China Key Laboratory for Special Functional Aggregated Materials of Education Ministry School of Chemistry&Chemical EngineeringShandong UniversityJinan 250100China

MoS2 is considered as an ideal electrode material in the field of energy storage due to high theoretical specific capacity and unique layered ***,limited interlayer distance and poor intrinsic electrical conductivity restrict its potential realworld ***,an alternately intercalated structure of MoS2 monolayer and N-doped porous carbon(NC)layer is grown on reduced graphene oxide(rGO)via a chemical intercalated *** expanded interlayer distance of MoS2(0.96 nm),enlarged by the intercalation of N-doped porous carbon layers,can enhance ion diffusion mobility,provide additional reactive sites for ion storage and maintain the stability of electrode *** addition,the hierarchical structures between rGO substrate and intercalated N-doped carbon layers construct a three-dimensional(3D)conductive network,which can significantly improve the electrical conductivity and the structural *** a result,the rGO-supported MoS2/NC electrode exhibits an ultrahigh reversible capacity and remarkable long cycling stability for sodium-ion batteries(SIBs)and potassium-ion(PIBs).Meanwhile,the as-obtained MoS2/NC@rGO electrode also delivers a superior cycle performance of 250 mAh·g−1 after 160 cycles at 0.5 A·g−1 when employed as an anode for sodium-ion full cells.

关键词： MoS2 graphene expanded interlayer spacing sodium-ion batteries potassium-ion batteries

A comparative study of Mg-Gd-Y-Zr alloy cast by metal mould and sand mould

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 Foundry 2010年第1期7卷 6-12页

作者： Wang qilong wu Guohua Hou Zhengquan Chen Bin Zheng Yun Ding Wenjiang National Engineering Research Center of Light Alloy Net Forming Shanghai Jiao Tong University Shanghai 200240 China State Key Laboratory of Metal Matrix Composites Shanghai 200240 China Shanghai Space Flight Precision Machinery Research Institute Shanghai 201600 China

The differences of the microstructure and mechanical property between metal mould and sand mould cast Mg-10Gd-3Y-Zr alloy were investigated both under as-cast condition and after solution heat treatment. In the as-cast specimens, the microstructure is similar and composed of a-Mg solid solution and eutectic compound of a-Mg＋ Mg24（Gd,Y）5; whereas the grain size using metal mould and sand mould is 27 pm and 71 IJm, respectively. The eutectic compound of metal mould cast alloy was completely dissolved after solution treated at 500℃ for 8 h, however it needs higher temperature （525 ℃） and longer time （12 h） to achieve the absolute dissolving under sand mould condition. In contrast to metal mould, the peak time of sand mould alloy aged at 225℃ and 250℃ of was advanced by 4 h and 6 h, respectively. The precipitation reaction sequence in sand mould cast Mg-10Gd-3Y-Zr alloy during isothermal ageing at 250℃ follows S.S.S.S.→β（D010）→β′（cboc）→β1（fcc）→β（fcc）, which is similar to that in the alloy cast using metal mould.

关键词： Mg-10Gd-3Y-Zr alloy solution heat treatment peak time precipitation sequence

Assembly of flower-like VS_(2)/N-doped porous carbon with expanded(001)plane on rGO for superior Na-ion and K-ion storage

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第5期15卷 4108-4116页

作者： Junwei Sun Gang Lian Laiying Jing Di wu Deliang Cui qilong Wang Haohai Yu Huaijin Zhang Ching-Ping Wong State Key Lab of Crystal Materials Shandong UniversityJinan 250100China School of Materials Science and Engineering Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China Key Laboratory for Special Functional Aggregated Materials of Education Ministry School of Chemistry&Chemical EngineeringShandong UniversityJinan 250100China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGeorgia 30332USA

VS2 with natural layered structure and metallic conductivity is a prospective candidate for sodium-ion batteries(SIBs)and potassium-ion batteries(PIBs).However,due to large radius of Na+and K+,the limited interlayer spacing(0.57 nm)of VS2 generally determines high ion diffusion barrier and large volume variation,resulting in unsatisfactory electrochemical performance of SIBs and *** this work,flower-like VS_(2)/N-doped carbon(VS_(2)/N-C)with expanded(001)plane is grown on reduced graphene oxide(rGO)via a solvothermal and subsequently carbonization *** the VS_(2)/N-C@rGO nanohybrids,the ultrathin VS2"petals"are alternately intercalated by the N-doped porous carbon monolayers to achieve an expanded interlayer spacing(1.02 nm),which can effectively reduce ions diffusion barrier,expose abundant active sites for Na+/K+intercalation,and tolerate large volume *** N-C and rGO carbonous materials can significantly promote the electrical conductivity and structural *** from the synergistic effect,the VS2/N-C@rGO electrode exhibits large reversible capacity(Na+:407 mAh·g^(-1) at 1 A·g^(-1);K^(+):334 mAh·g^(-1) at 0.2 A·g^(-1)),high rate capacity(Na+:273 mAh·g^(-1) at 8 A·g^(-1);K+:186 mAh·g^(-1) at 5 A·g^(-1)),and remarkable cycling stability(Na+:316 mAh·g^(-1) at 2 A·g^(-1) after 1,400 cycles;K^(+):216 mAh·g^(-1) at 1 A·g^(-1) after 500 cycles).

关键词： VS_(2) N-doped porous carbon,graphene substrate expanded interlayer spacing sodium-ion batteries potassium-ion batteries

Annual and interannual variations of the Western Pacific Warm Pool volume and sources of warm water revealed by Argo data

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

Science China Earth Sciences 2014年第12期57卷 2269-2280页

作者： wu XiaoFen ZHANG qilong LIU ZengHong Second Institute of Oceanography State Oceanic Administration Key Laboratory of Ocean Circulation and Waves Institute of Oceanology Chinese Academy of Sciences State Key Laboratory of Satellite Ocean Environment Dynamics State Oceanic Administration

Based on gridded Argo profile data from January 2004 to December 2010, together with the P-vector inverse method, the three-dimensional structure, annual and inter-annual variations in volume of the Western Pacific Warm Pool （WPWP） are studied. The variations of latitudinal and longitudinal warm water flowing into and out of the WPWP and the probable mecha- nism of warm water maintenance are also discussed. From the surface to the bottom, climatic WPWP tilts southward and its area decreases. The maximum depth could extend to 120 m, such that its volume could attain 1.86x10^5 m3. Annual variation of the WPWP volume shows two obvious peaks that occur in June and October, whereas its inter-annual variations are related to ENSO events. Based on a climatic perspective, the warm water flowing latitudinally into the pool is about 52 Sv, which is mainly through upper layers and via the eastern boundary. Latitudinally, warm water flowing outward is about 49 Sv, and this is mainly through lower layers and via the western boundary. In contrast, along the latitude, warm water flowing into and out of the pool is about 28 Sv and 23 Sv, respectively. Annual and inter-annual variations of the net transportation of the warm water demonstrate that the WPWP mainly loses warm water in the west-east direction, whereas it receives warm water from the north-south direction. The annual variation of the volume of WPWP is highly related to the annual variation of the net warm water transportation, however, they are not closely related on inter-annual time scale. On the inter-annual time scale, in- fluences of ENSO events on the net warm water transportation in the north-south direction are much more than that in the west-east direction. Although there are some limitations and simplifications when using the P-vector method, it could still help improve our understanding of the WPWP, especially regarding the sources of the warm water.

关键词： Western Pacific Warm Pool volume variability latitudinal flow longitudinal flow Argo data P-vector method

同方期刊数据库

基于AHP-熵权和VIKOR法的电力系统态势感知技术分析

在线全文

学校读者我要写书评

暂无评论

集成电路应用 2024年第6期41卷 335-337页

作者：张嘉铭武家辉魏琦龙李佳桐马尔哈巴·哈尼旦新疆大学电气工程学院新疆830046

阐述新能源的指标体系,采用AHP-熵权法相结合的权重计算方法,利用VIKOR法对电网态势进行评价,以IEEE-39节点系统为例进行分析验证。分析结果表明,不同新能源在电网的渗透对评价结果产生不同的影响,所采用方法得出的结果与现实理论相符。

关键词：智能控制技术 AHP 熵权 VIKOR 电力系统态势感知

In-plane optical anisotropy of two-dimensional VOCl single crystal with weak interlayer interaction

在线全文

学校读者我要写书评

暂无评论

Chinese Physics B 2022年第9期31卷 444-449页

作者： Ruijie Wang qilong Cui Wen Zhu Yijie Niu Zhanfeng Liu Lei Zhang Xiaojun wu Shuangming Chen Li Song National Synchrotron Radiation Laboratory University of Science and Technology of China(USTC)Hefei 230029China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Department of Materials Sciences and Engineering School of Chemistry and Materials SciencesUniversity of Science and Technology of ChinaHefei 230026China School of Materials Science and Physics China University of Mining and TechnologyXuzhou 221116China

Transition-metal oxyhalides MOX(M=Fe,Cr,V;O=oxygen,X=F,Cl,Br,I),an emerging type of two-dimensional(2D)van der Waals materials,have been both theoretically and experimentally demonstrated to possess unique electronic and magnetic ***,the intrinsic in-plane anisotropic properties of 2D VOCl still lacks in-depth re-search,especially optical ***,a systematic Raman spectroscopic study is performed on VOCl single-crystal with different incident laser polarization at various *** polarized-dependent Raman scattering spectra reveal that the Ag mode of VOCl show a 2-lobed shape in parallel polarization configuration while a 4-lobed shape in vertical *** addition,the temperature-dependent and thickness-dependent Raman scattering spectra confirm a rela-tively weak van der Waals interaction between each layers among VOCl single *** findings might provide better understanding on the in-plane anisotropic phenomenon in VOCl layers,thus will accelate further application of 2D single crystals for nanoscale angle-dependent optoelectronics.

关键词： two-dimensional(2D)materials in-plane anisotropy Raman spectra