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榆次窑传统茶叶末釉非遗技艺研究

晋中学院学报 2024年第1期41卷 91-95页

作者：王向阳晋中学院文化产业系山西晋中030619

传统榆次窑茶叶末釉技艺属地方优秀非遗文化,产品自宋一直延续至民国后。通过长期实践和研究发现,传统榆次窑茶叶末釉的物质形态背后是一系列复杂的非物质技艺。本文运用文献研究、数据分析等方法,对榆次窑传统茶叶末釉的历史背景、烧... 详细信息

传统榆次窑茶叶末釉技艺属地方优秀非遗文化,产品自宋一直延续至民国后。通过长期实践和研究发现,传统榆次窑茶叶末釉的物质形态背后是一系列复杂的非物质技艺。本文运用文献研究、数据分析等方法,对榆次窑传统茶叶末釉的历史背景、烧制原理、文化内涵进行分析研究,从而获得新的经验依据,为传承创新该技艺提供一些启发。

关键词：榆次窑茶叶末釉传统技艺文化遗产

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PBAT聚酯工艺风险和安全管理探析

聚酯工业 2024年第3期37卷 65-67页

作者：王向阳王金歌五恒化学科技(宁夏)有限公司宁夏银川750411 五恒化学有限公司宁夏银川750411

PBAT聚酯工艺是一种以石油为基础的可降解塑料制造工艺,它采用对环境友好的原料和生产过程,具有广阔的市场前景。但在其聚酯工艺中具有一些不稳定因素。基于此,本文以PBAT聚酯工艺为基点,首先对其进行概述,然后从技术、环境、质量等方... 详细信息

PBAT聚酯工艺是一种以石油为基础的可降解塑料制造工艺,它采用对环境友好的原料和生产过程,具有广阔的市场前景。但在其聚酯工艺中具有一些不稳定因素。基于此,本文以PBAT聚酯工艺为基点,首先对其进行概述,然后从技术、环境、质量等方面详细分析PBAT聚酯工艺主要的风险,然后提出一系列切实可行的安全管理措施,以期能有效地降低PBAT聚酯工艺的风险,从而促进可持续发展。

关键词： PBAT 聚酯工艺风险分析安全管理

A COMPARISON OF DIFFERENT CONTRACTION METHODS FOR MONOTONE VARIATIONAL INEQUALITIES

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Journal of Computational Mathematics 2009年第4期27卷 459-473页

作者： Bingsheng He xiang wang Junfeng yang Department of Mathematics Nanjing University Nanjing 210093 China

It is interesting to compare the efficiency of two methods when their computational loads in each iteration are equal. In this paper, two classes of contraction methods for monotone variational inequalities are studied in a unified framework. The methods of both classes can be viewed as prediction-correction methods, which generate the same test vector in the prediction step and adopt the same step-size rule in the correction step. The only difference is that they use different search directions. The computational loads of each iteration of the different classes are equal. Our analysis explains theoretically why one class of the contraction methods usually outperforms the other class. It is demonstrated that many known methods belong to these two classes of methods. Finally, the presented numerical results demonstrate the validity of our analysis.

关键词： Monotone variational inequalities Prediction-correction Contraction methods.

On a class of measure-valued processes:singular cases

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Science China Mathematics 2006年第10期49卷 1315-1326页

作者： wang Bin xiang Kainan yang xiangqun Department of Mathematics Hunan Normal University Changsha 410081 China Department of Mathematics Hunan Normal University Changsha 410081 China Department of Mathematics Hunan Normal University Changsha 410081 China

A measure-valued diffusion process describing how the measures evolve under flows or "imaginary" flows on Rd is constructed in this paper. The interest of the process is that on the one hand, it can be viewed as a mea... 详细信息

关键词： flow, "imaginary" flow, measure-valued process.

Coordination control strategy based on characteristic model for 3-bearing swivel duct nozzles

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Science China(Technological Sciences) 2014年第12期57卷 2347-2356页

作者： wang xiang yang ZHU Ji Hong yang Jia Li LIU Kai School of Aerospace Tsinghua University Department of Computer Science and Technology Tsinghua University

A coordination control strategy is developed for 3-bearing swivel duct （3BSD） nozzles. A 3BSD nozzle＇s deflection angle and direction are changed through rotations of three revolute pairs. There is a nonlinear relationship between the deflection an- gle/direction and the rotation angles. The rotation speed of a revolute pair is limited by the power of the actuator. The moment of inertia and the aerodynamic load for each revolute pair are different and time-varying. A high-precision control system of 3BSD nozzles is required for applications on vertical and/or short take-off and landing （V/STOL） aircrafts. Difficulties of co- ordination control of 3BSD nozzles are distinct travel ranges, speed constraints, time^xarying dynamic models, and disturb- ances. The proposed control strategy is a combination of the characteristic model and tlF e dynamic control allocation method. A dynamic control allocation module is used as the coordination supervisor, which is aware of the kinematic model, the con- straints, and the dynamic models of the revolute pairs. Second-order characteristic models are used to represent the dynamic behavior of the revolute pairs. The gradient projection algorithm is modified for parameter estimation. A modified all-coefficient adaptive controller is developed to reject the disturbances. Experimental results of a scaled 3BSD nozzle indi- cate that the coordination control strategy is effective.

关键词： 3-bearing swivel duct nozzle thrust vector coordination control characteristic model adaptive control dynamic con-trol allocation

Meiotic chromosome preparation techniques of pollen mother cells for laser micro-dissection in Populus spp.

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Forestry Studies in China 2010年第2期12卷 74-78页

作者： yang Hong-yan wang Jun KANG xiang-yang National Engineering Laboratory for Tree Breeding Key Laboratory of Genetics and Breeding in Forest Trees and OrnamentalPlants of Ministry of Education Beijing Forestry University Beijing 100083 P. R. China

In order to isolate meiotic chromosomes of Populus species meiotic chromosome preparation techniques of pollen mother cells for laser micro-dissection were studied. Pollen mother cells at diakinesis ofPopulus canadensis Moench were used as samples. Two methods were used to prepare meiotic chromosomes： in the first, cell suspensions were dropped on polyethylene-naphthalate or polyester membrane slides which had just been incubated at -20~C; in the second method, cell suspensions were also dropped on polyethylene-naphthalate or polyester membrane slides, but spread with the aid of high temperatures. The cells did not completely spread by the first method and chromosomes at diakinesis could not be individually distinguished. In contrast, well-spread diakinesis chromosomes were obtained by the second method, where chromosomes, connected with their nucleolus, were successfully isolated with the laser micro-dissection system. As well, we discuss the prospect of applications of laser micro-dissection in cytogeneties and molecular genetics in Populus species.

关键词： chromosomes diakinesis laser micro-dissection Populus spp. pollen mother cells

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桥梁墩柱预制与安装技术

价值工程 2024年第10期43卷 88-90页

作者：王向阳沈加瑾韩卓华刘威中建安装集团有限公司南京公司南京210046 南京市路桥工程总公司南京211135

城市道路在城市化进程中,常常无法适应平交路口数量增加、车流量增大等变化。立体化改扩建可从根源提升通行效率,改善交通状况。在城市高架桥建设中,墩柱施工常采用翻模法、爬模法等传统方法,需要在现场搭设支架与模板,并完成钢筋绑扎... 详细信息

城市道路在城市化进程中,常常无法适应平交路口数量增加、车流量增大等变化。立体化改扩建可从根源提升通行效率,改善交通状况。在城市高架桥建设中,墩柱施工常采用翻模法、爬模法等传统方法,需要在现场搭设支架与模板,并完成钢筋绑扎与混凝土浇筑,在城市建设中弊端明显,施工效率有限。以新型预制工艺为支撑,以先进吊装工艺为保障,以构件连接技术为突破,形成了涵盖墩柱、盖梁与桥跨结构预制的全预制桥梁技术,为城市桥梁建设开辟了新的途径。

关键词：预制桥梁墩柱预制墩柱安装控制座浆

Asymmetric Electrolytes Design for Aqueous Multivalent Metal Ion Batteries

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Nano-Micro Letters 2024年第3期16卷 227-253页

作者： Xiaochen yang Xinyu wang Yue xiang Longtao Ma Wei Huang Frontiers Science Center for Flexible Electronics Institute of Flexible ElectronicsNorthwestern Polytechnical UniversityXi’an 710072People’s Republic of China School of Materials Science and Engineering Guangdong Provincial Key Laboratory of Advanced Energy Storage MaterialsSouth China University of TechnologyGuangzhou 510641People’s Republic of China

With the rapid development of portable electronics and electric road vehicles,high-energy-density batteries have been becoming front-burner ***,homogeneous electrolyte cannot simultaneously meet diametrically opposed demands of high-potential cathode and low-potential anode,which are essential for high-voltage ***,homogeneous electrolyte is difficult to achieve bi-or multi-functions to meet different requirements of *** comparison,the asymmetric electrolyte with bi-or multi-layer disparate components can satisfy distinct requirements by playing different roles of each electrolyte layer and meanwhile compensates weakness of individual ***,the asymmetric electrolyte can not only suppress by-product sedimentation and continuous electrolyte decomposition at the anode while preserving active substances at the cathode for high-voltage batteries with long cyclic *** this review,we comprehensively divide asymmetric electrolytes into three categories:decoupled liquid-state electrolytes,bi-phase solid/liquid electrolytes and decoupled asymmetric solid-state *** design principles,reaction mechanism and mutual compatibility are also studied,***,we provide a comprehensive vision for the simplification of structure to reduce costs and increase device energy density,and the optimization of solvation structure at anolyte/catholyte interface to realize fast ion transport kinetics.

关键词： Asymmetric electrolyte Aqueous multivalent metal ion batteries Electrochemical stability windows Electrolyte interface

A Simple-Prepared and Multi-Reusable Adhesive Based on Epoxy Vitrimer

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Chinese Journal of Polymer Science 2024年第10期42卷 1589-1594,I0015页

作者： Yu-Ting wang Huan Liang Yen Wei Jian-Long wang xiang-Ming He yang yang Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing100084China The Key Laboratory of Bioorganic Phosphorus Chemistry&Chemical Biology(Ministry of Education) Department of ChemistryTsinghua UniversityBeijing100084China

Adhesives play an important role in modern society's production and daily *** robust and sustainable adhesives remains a great *** we report a sustainable epoxy-vitrimer adhesive with high adhesive strength(about 10 MPa)and reusability(82%strength after 3 times).This adhesive can be fabricated from commercially available products through a straightforward hot-pressing method without the need of *** adhesive process is also simple,requiring only 30 min at 180℃.In addition,the vitrimer adhesive has the advantages of both erasability for reuse and excellent water *** work provides a facile strategy to fabricate high-strength adhesive that ensures reusability,recyclability,low cost of raw materials,and simple processing ***,it expands the range of potential applications for epoxy vitrimers.

关键词： Epoxy Vitrimer Adhesive Reusable Sustainable