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An inter-city input-output database distinguishing firm ownership in the Greater China area during 2002–2017

Scientific Data 2025年第1期12卷 1-34页

作者： Wang, Yafei Xu, Dingyi Zheng, Heran Ye, Ming Zhang, Meichen He, Qi Cai, Kun Guan, Dabo Li, Shantong Ma, Hong Meng, Bo Wang, Zhi Wang, Yang Xu, Lixiao Xu, Xianchun Yang, Peihao Ouyang, Qianhong School of Statistics Beijing Normal University Beijing 100875 China International Business School Shanghai University of International Business and Economics Shanghai 201620 China The Bartlett School of Sustainable Construction University College London London WC1E 7HB United Kingdom Yangtze IEDI Nanjing University Nanjing 210023 China Research Institute for Global Value Chains University of International Business and Economics Beijing 100029 China Department of Earth System Science Tsinghua University Beijing 100084 China Department of Development Strategy and Regional Economy Development Research Centre for the State Council Beijing 100010 China School of Economics and Management Tsinghua University Beijing 100084 China Institute of Developing Economies Japan External Trade Organization Chiba 261-8545 Japan The Collaborative Innovation Center for Emissions Trading System Co-constructed by the Province and Ministry Hubei Province Wuhan 430205 China Schar School of Policy and Government George Mason University 3351 Fairfax Drive MSN 3B1 Arlington 22201 VA United States Digital Economy Laboratory University of International Business and Economics Beijing 100029 China School of Data Science Zhejiang University of Finance and Economics Hangzhou 310018 China National School of Development Peking University Beijing 100871 China

Most multi-region input-output (MRIO) tables in China focus on provinces or urban agglomerations and ignore the tremendous geographical heterogeneities of economic activities across Chinese prefectural cities, where regional economic centres are usually located for domestic and global production. This paper constructs an inter-city input-output (IO) database with 42 sectors in the Greater China area. Compared with previous MRIO tables, it has three important features: (1) A complete coverage of Chinese cities, including 335 prefectural cities, four municipalities, and Hong Kong, Macao, and Taiwan;(2) Distinguishes three types of firm ownership for every city and sector for four benchmark years;(3) A novel data completion approach to reconcile all accessible micro-level data with city and provincial-level aggregate statistics, and effectively combining the bottom-up and top-down methods commonly used in the MRIO compilation literature. The database can be used in a diverse range of socioeconomic and interdisciplinary issues in the Greater China area at the city level. It also sheds light on other large economies to develop their own inter-city IO tables. © The Author(s) 2025.

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PP01.08 Pilot Study to Evaluate the Potential of the Tumor-Educated Platelets (TEP) as the Tool to Detect Minimal Residual Disease and Drug Resistance

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Journal of Thoracic Oncology 2025年第4期20卷 S6-S6页

作者： Shuta Ohara Kenichi Suda Kazuko Sakai Junko Tanaka Takamichi Muramatsu Chihiro Uematsu Yasuhiro Tsutani Kazuto Nishio Tetsuya Mitsudomi Division of Thoracic Surgery Department of Surgery Kindai University Faculty of Medicine Osakasayama Japan Department of Genome Biology Kindai University Faculty of Medicine Osakasayama Japan Center for Digital Services - Healthcare Research & Development Group Hitachi Ltd. Tokyo Japan Diagnostic System Business Strategy Planning Division Healthcare Business Group Hitachi High- Tech Corporation Tokyo Japan Izumi City General Hospital Izumi Japan

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R&D Activities to Implement an Access Network for the IOWN Era

R&D Activities to Implement an Access Network for the IOWN E...

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作者： Junichi, Kawataka Takayuki, Baba Koichi, Ishihara Ayako, Iwaki Kotaro, Saito Katsuhisa, Taguchi Access Network Service Systems Project NTT Access Network Service Systems Laboratories Japan Development Planning Department Research and Development Market Strategy Division NTT Corporation Japan Optical Access System Project NTT Access Network Service Systems Laboratories Japan NTT Access Network Service Systems Laboratories Japan

NTT Access Network Service systems Laboratories is conducting research and development to support access networks in the fields of optical fiber access, infrastructure, access system, wireless access, and operation technologies. To advance the Innovative Optical and Wireless Network (IOWN) from concept to implementation by 2030, we introduce our vision of a future access network and our efforts to implement it. © 2024 Nippon Telegraph and Telephone Corp.. All rights reserved.

关键词： Optical fibers

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About using drone in broadcasting stations (TBS holdings)

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Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers 2017年第9期71卷 591-596页

作者： Asano, Taro Ishii, Tomotaka Corporate Planning Division Business Strategy Department Tokyo Broadcasting System Holdings Inc. Tokyo Japan Global Business Development Business Innovation Office Tokyo Broadcasting System Holdings Inc. Tokyo Japan

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Transmission surplus capacity based power transmission expansion planning using Chaos optimization Algorithm

Transmission surplus capacity based power transmission expan...

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International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)

作者： Gang Qu Haozhong Cheng Liangzhong Yao Zeliang Ma Zhonglie Zhu Xiaohui Wang Jianzhong Lu Department of Electrical Engineering Shanghai Jiao Tong University Shanghai China AREVA T and D Technology Centre Stafford UK Department of ECGCL Development and Strategy Shanghai China Strategy Department of ECGCL Power System Planning Shanghai China ECGCL Shanghai China

A novel power transmission expansion planning model and its application algorithm which considers the transmission surplus capacity and load factor of the transmission line is presented. In traditional transmission expansion planning, some transmission lines will run at a high load factor due to ignore the load level of transmission lines. This may lead to congestion in network and degrade dispatch flexibility. Such a planning process has put more emphasis on investment optimization than other aspects. This paper describes new objectives which aim to get the best distribution of branch load factors together with minimizing the investment simultaneously. Chaos Optimal Algorithm (COA) is introduced and used to solve transmission expansion planning problem due to its stochastic and ergodic characteristics. Its effectiveness of the proposed model and methodology are tested in two typical systems.

关键词： Capacity planning Power transmission Chaos Power system planning Power transmission lines Power engineering and energy Process planning Investments Power system security Cost function

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Analysis of Kinematic Characteristics of Cable Ducting Robot 4

Analysis of Kinematic Characteristics of Cable Ducting Robot

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4th International Conference on Power and Energy Technology, ICPET 2022

作者： Chen, Yanbo Liu, Shuyu Hao, Lijin Chi, Fujian Xu, Hui Li, Cheng North China Electric Power University State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources Beijing China State Grid Tianjin Electric Power Company Binhai Power Supply Company Tianjin China State Grid Tianjin Electric Power Company Power Cable Company Tianjin China State Grid Tianjin Electric Power Company Development and Strategy Department Tianjin China

ISBN: (数字)9781665480796

ISBN: (纸本)9781665480796

In order to solve the problem of efficient dredging when the cable duct is blocked, the field application requirements of the cable duct are analyzed, an overall design scheme of the cable duct robot is proposed, and the specific work flow planning of the robot in the duct is designed. This paper carefully analyzes the mechanical problems involved in the movement of the pipeline inspection robot in the pipe from multiple angles, which provides a theoretical basis for the flexible and efficient operation of the pipeline robot, and uses the finite element analysis software to check the strength of the key parts of the pipeline robot equipment, so as to make it meet the performance requirements of the design. Finally, the prototype of the pipe laying robot is made and debugged. The experimental results show that it basically meets the design expectation. © 2022 IEEE.

关键词： Finite element method

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Mechanical Characterization Analysis of flexible and stretchable Ultra-Thin Substrates by Experiment and FE Simulation

Mechanical Characterization Analysis of flexible and stretch...

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Thermal, Mechanical and Multiphysics Simulation and Experiments in Micro-Electronics and Micro-systems EuroSimE

作者： L. Wang T. Zoumpoulidis K.M.B. Jansen M. Bartek G.Q. Zhang L.J. Ernst Department of Precision and Micro-system Engineering Delft University of Technnology Delft Netherlands Delft Institute of Microelectronics and Submicron Technology/HiTeC Delft University of Technnology Delft Netherlands Strategy and Business Development of Philips Semiconductors Eindhoven Netherlands

Initial studies have demonstrated that specially designed and fabricated microelectronics embedded in flexible substrates can maintain functionality when subjected to stretching as well as bending. The acceptable flexibility and stretchability for ultra-thin substrate could be reached by embedding the ultra-thin substrate into flexible polyimide and patterning the silicon into square or hexagon segmentations. In this paper, results of experiments and FE simulations on mechanical issues of poly- and single crystalline silicon on ultra-thin polyimide substrates are presented. Generation of cracks within the silicon and dielectric layers are then studied under controlled bending and tensile tests using bending and tensile tools being specially designed for this purpose. Specimen observation can be done using an optical microscope with possibility of digital recording and evaluation by pattern recognition software. The crack onset and the propagation of cracks are characterized. The results show that the cracks appear first in the middle of the dielectric material in-between the silicon segments. Only at higher loads they propagate or are generated within the silicon itself. The development of first cracks depends significantly on the silicon segmentation size and gaps between segments. The highest flexibility result can be reached such that no cracks are detected under bending tests on cylinders with 2 mm diameter. The segment size and gap size have influence on the tensile deformation. The stiffness of samples with segments is different before and after the first crack occurs, as a consequence of the appearing cracks. Multilevel FEM simulations are performed in order to increase understanding of the major failure processes. The maximum principle strain as found from simulation and from the experiment compares quite well. The maximum local principal strains appear in the gap near the spot where first fracture occurred during testing in the oxide layers.

关键词： Iron Analytical models Silicon Dielectric substrates Testing Polyimides Optical microscopy Optical propagation Capacitive sensors Microelectronics

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Design and Fabrication of Micro-system Embedding in Flexible Substrates

Design and Fabrication of Micro-System Embedding in Flexible...

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Electronic Components and Technology Conference (ECTC)

作者： L. Wang T. Zoumpoulidis M. Bartek K.M.B. Jansen L.J. Ernst G.Q. Zhang Department of Precision and Micro-system Engineering Delft University of Technnology Delft Netherlands Delft Institute of Microelectronics and Submicron Technology/HiTeC Delft University of Technnology Delft Netherlands Strategy and Business Development of Philips Semiconductors Eindhoven Netherlands

The possibility to conform microelectronic circuits onto non-planar or even high-curvature surfaces is of increasing interest for future applications. A promising flexible substrate concept based on vertical thinning/lateral partitioning and the substrate transfer technology is developed. Test structures for flexibility testing which consist of a partitioned ultra-thin poly-silicon layer sandwiched between 300 nm thermal and 500 nm PECVD silicon dioxide layers were designed and fabricated. These test structures were embedded into a soft material layer (polyimide). The results of bending tests around cylinders showed that the flexible structures could easily withstand the bending around a cylinder with diameter of 2 mm. The onset of cracks was detected in the dielectric layers (silicon oxide) region between the silicon segments, therefore second generation samples were designed with the silicon oxide between the segments removed. The wave-shape flexible interconnects with different parameters were also designed for signal communication between the functional silicon segments. The resistances of vertical and parallel paths were measured during the tensile tests with a custom designed setup which also allows optical observation. Multi-level FEM simulations were performed in order to increase understanding of the major failure processes. The correspondence between simulation and measurement results provides a good knowledge base for the further optimization of the embedded flexible structures.

关键词： Fabrication Circuit testing Flexible structures Electrical resistance measurement Microelectronics Optical surface waves Silicon compounds Materials testing Dielectric materials Polyimides

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Mechanical Characterization of Deformable Ultra-Thin Substrates by Experiment and FE Simulation

Mechanical Characterization of Deformable Ultra-Thin Substra...

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Electronic Components and Technology Conference (ECTC)

In this paper, results of experiments and FE simulations on mechanical issues of poly-and single crystalline silicon on ultra-thin polyimide substrates are presented. Formation and propagation of cracks within the silicon and dielectric layers are then studied under controlled bending and tensile tests using bending and tensile tools being custom designed for this purpose. The results show that the cracks appear first in the middle of the dielectric material in-between the silicon segments and then propagate into the dielectric and poly-silicon material. The development of first cracks depends significantly not only on the "segment-area-to-gap-area" ratio but also on the silicon segmentation size under the tensile and bending tests. The stiffness of samples with segments is different before and after the first crack occurs, as a consequence of the appearing cracks. The high ratio of width (or length) to thickness of components offers a challenge for proper FEM simulation. Multilevel FEM simulations are first performed to get understanding of the major failure processes. The simulated critical (mean) strain agrees with the mean tensile strain in the tested samples. The maximum local principal strains appear in the gap near the spot where during testing first fracture occurred in the oxide layers. The correspondences between simulation and measurement results provide a good base for optimization of the segment size, gap size, interconnection shape, material and structure selection. Based on the experimental and simulation results, 2nd generation optimised samples were designed with full segmentation and containing spring interconnecting lines.

关键词： Iron Deformable models Silicon Testing Dielectric substrates Dielectric materials Tensile strain Shape measurement Crystallization Polyimides

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A Design of a Cable Arranging and Pipe Wrecking Machine Device 4

A Design of a Cable Arranging and Pipe Wrecking Machine Devi...

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4th International Conference on Power and Energy Technology, ICPET 2022

作者： Hao, Lijin Chen, Yanbo Liu, Shuyu Sun, Kuo Ge, Leijiao Xu, Hui State Grid Tianjin Electric Power Company Power Cable Company Tianjin China North China Electric Power University State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources Beijing China State Grid Tianjin Electric Power Company Binhai Power Supply Company Tianjin China State Grid Tianjin Electric Power Company Development and Strategy Department Tianjin China Tianjin University School of Electrical and Information Tianjin China

ISBN: (数字)9781665480796

ISBN: (纸本)9781665480796

In the actual power engineering, due to the existence of sediment, cement blocks, stones, broken pipe walls and waste cables in the cable pipe, the cable pipe is blocked and a large amount of resources are wasted in the underground cable pipe. In the process of new cable installation, cutting and modification projects and emergency repairs, due to the blockage of the cable pipes, the engineering cycle and failure repair time are extended to several months, which increases the engineering cycle and failure repair costs, and seriously affects the power supply reliability of urban construction.. In the prior art, however, the problem of internal blockage of the cable pipe can only be solved by excavating, repairing, and re-laying the pipe, which is time-consuming and labor-intensive. Therefore, it is of great significance to study the internal clearance technology of cable ducts. © 2022 IEEE.

关键词： Cost engineering

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