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CAAI Transactions on Intelligence Technology 2020年第4期5卷 301-307页

作者： yao fei College of Information Science and Technology Gansu Agricultural UniversityLanzhou 730070People’s Republic of China

A neutrosophic network is an extension of an intuitionistic fuzzy network that provides more precision compatibility and flexibility than an intuitionistic fuzzy graph in structuring and modelling many real-life *** authors have explored the use of a neutrosophic network for modelling the passive optical network,mobile ad hoc network(MANET),and wireless sensor *** have presented the idea of strong arc,weak arc strong domination numbers,and strong perfect domination of neutrosophic *** have described the method to find the values of strong and strong perfect domination of neutrosophic ***,they use the idea of a strong arc strong domination number in MANET and wireless sensor graphs.

关键词： network wireless passive

The Time-Dependent Von Kármán Shell Equation as a Limit of Three-Dimensional Nonlinear Elasticity

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Journal of Systems Science & Complexity 2021年第2期34卷 465-482页

作者： QIN Yizhao yao Peng-fei Department of Mathematical Science Tsinghua UniversityBeijing 100084China Key Laboratory of Systems and Control Institute of Systems ScienceAcademy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100049China

The asymptotic behaviour of solutions of three-dimensional nonlinear elastodynamics in a thin shell is considered,as the thickness h of the shell tends to *** the appropriate scalings of the applied force and of the initial data in terms of h,it’s verified that three-dimesional solutions of the nonlinear elastodynamic equations converge to solutions of the time-dependent von Kármán equations or dynamic linear equations for shell of arbitrary geometry.

关键词： Nonlinear elasticity thin shell time-dependent von Kármán equations

Text Dimensionality Reduction with Mutual Information Preserving Mapping

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Chinese Journal of Electronics 2017年第5期26卷 919-925页

作者： YANG Zhen yao fei FAN Kefeng HUANG Jian College of Computer Science Beijing University of Technology Guangxi Colleges and Universities Key Laboratory of cloud computing and complex systems Guilin University of Electronic Technology China Electronics Standardization Institute Central University of Finance and Economics

With the explosion of information,it is becoming increasingly difficult to get what is really *** reduction is the first step in efficient processing of large *** dimensionality can be reduced in many ways,little work has been done to achieve dimensionality reduction without changing the inner semantic relationship among high dimension *** remedy this problem,we introduced a manifold learning based method,named Mutual information preserving mapping(MIPM),to explore the low-dimensional,neighborhood and mutual information preserving embeddings of highdimensional *** results show that the proposed method is effective for the text dimensionality reduction *** MIPM was used to develop a temporal summarization system for efficiently monitoring the information associated with an event over *** respect to the established baselines,results of these experiments show that our method is effective in the temporal summarization.

关键词： Dimensionality reduction Manifold learning Temporal summarization Mutual information preserving mapping(MIPM)

Evolution Characteristics of Government-Industry-University-Research Cooperative Innovation Network for China＇s Agriculture and Influ- encing Factors： Illustrated According to Agricultural Patent Case

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Chinese Geographical Science 2018年第1期28卷 137-152页

作者： LI Erling yao fei XI Jiaxin GUO Chunyang Key Research Institute of Yellow River Civilization and Sustainable Development/Henan Collaborative Innovation Center for the Yellow River Civilization Heritage and Modern Civilization Construction/College of Environment and Planning Henan University Kaifeng 475001 China Collaborative Innovation Center of Urban-Rural Coordinated Development Henan Province Kaifeng 475004 China Gemmological Institute China University of Geosciences (Wuhan) Wuhan 430074 China

Under the special background of China, the cooperative innovation between different government-industry-university-research institutes plays an increasingly important role in the agricultural field. However, the existing literature has paid little attention to it. Considering the cooperation patents, published in the agriculture field stemming from the Full-text Database of China Patents as the study object, the spatial and institutional attribute of the authors as the data source, and by combining the social network and spatial econometrics analysis, this paper analyzes the structure evolution characteristics of cooperative innovation networks of agricultural government-industry-university-research institute in the city level of China in 1985–2014, based on the triple helix theory, with the influence factors discussed. This shows that, 1) since 1985, China's agricultural innovation level has been substantially increased, but the development degree of the cooperative innovation network is low, and the patent cooperation mainly relies on authors in the same unit; 2) enterprises play a leading role in the agricultural cooperative innovation. The effect of the government and hybrid organizations driven by the government is not obvious; 3) the cooperative innovation in the province and city dominates, and a multi-pole pattern has been formed. The cooperative innovation network structure evolves from a single helix empty core and double helix multi core to a double helix hierarchical network; 4) the city's science, education funding and personnel investment are key factors determining the agricultural cooperative innovation, while the agricultural development of the city presents slight negative impacts on it. The spatial mismatch of supply and demand is present in the technical cooperative innovation of China's agriculture. Therefore, the science enhancement and education investment to big agricultural provinces should be promptly implemented.

关键词： cooperation innovation networks government-industry-university-research institute China's agricultural patent SocialNetwork Analysis (SNA)

Two-parameter estimation with three-mode NOON state in a symmetric triple-well potential

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Communications in Theoretical Physics 2022年第4期74卷 52-60页

作者： fei yao Yi-Mu Du Haijun Xing Libin Fu Graduate School of China Academy of Engineering Physics Beijing 100193China

We propose a scheme to realize two-parameter estimation via Bose–Einstein condensates confined in a symmetric triple-well *** three-mode NOON state is prepared adiabatically as the initial *** two parameters to be estimated are the phase differences between the *** sensitivity of this estimation scheme is studied by comparing quantum and classical Fisher information *** a result,we find an optimal particle number measurement ***,the precision of this estimation scheme means that the Heisenberg scaling behaves under the optimal measurement.

关键词： multi-parameter estimation Heisenberg scaling precision three-mode NOON state symmetric triple-well potential

The whole process confirmation management and its application in coal mine safe production

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Journal of Coal Science & Engineering(China) 2012年第4期18卷 390-395页

作者： yao Hai-fei Mine Safety Technology Branch China Coal Research InstituteBeijing 100013China State Key Laboratory of Coal Mining and Clean Utilization(China Coal Research Institute) Beijing 100013China

After analyzing the reasons for coal mine accidents and the current management methods, effective actions for the implementation of safety management were put forward by carrying out the whole process confirmation management. The ba- sic content and the five implementation steps were described, and the implementation method and the program of every step were introduced. Some rules for the implementation of the whole process confirmation management in coal mine safety pro- duction were explained, such as during the process of preproduction, before descent, descent, after descent, walking in the roadway, post-operation, shift, and hoisting after work. The results show that the guardians and the executors should both con- firm the implementation, which can improve the workers＇ attention and self-awareness to avoid errors in detail and reduce the ＂three violations＂ phenomenon. To ensure the effect of the whole process confirmation management, relevant departments should designate a person-in-charge in the specific work in all stages, make a work plan, and strengthen the internal evaluation.

关键词： whole process confirmation risk assessment guardian executor safe production

A New Approach to Suppress Tip Leakage Flow Utilizing Induced Shock Wave in Tip Region of a TransonicCompressor Rotor

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Journal of Thermal Science 2024年第6期33卷 2059-2074页

作者： CUI Weiwei yao fei LI Zongming WANG Xiaonan CHANG Guozhang WANG Cuiping College of Energy Storage Technology Shandong University of Science and TechnologyQingdao 266590China College of Civil Engineering and Architecture Shandong University of Science and TechnologyQingdao 266590China Clean energy laboratory Shandong University of Science and TechnologyQingdao 266590China

Tip leakage flow affects the flow stability of high-loading compressors ***,a novel approach via induced shock wave near suction-side edge of blade tip was proposed to suppress the strength and influence range of leakage flow in a transonic *** new schemes with different circumferentially diverging degrees of clearance were designed to reveal the mechanism of the new *** the action of the circumferentially diverging clearance(from the pressure side to the suction side over blade tip),a much more dramatic acceleration of the supersonic leakage jet flow appeared over blade tip of the new *** induced shock wave was produced near the suction side edge of blade tip due to the pressure difference between the discharging leakage flow and the surrounding high-pressure mainflow in tip *** a result,both the mass flow rate and the outlet velocity of leakage flow were reduced significantly via the induced shock ***,the suppressing effect of the new approach on the tip leakage jet flow was closely related to the strength and circumferential location of the induced shock *** the aids of the induced shock wave,the largest improvement of tip flow characteristics with an over 5%increase in stall margin was realized in new transonic rotor when the circumferential divergence angle equals 8°,accompanied with no more than a 0.4%decrease in isentropic efficiency.

关键词： circumferentially diverging clearance induced shock wave leakage flow low-velocity region st marginenhancement

Effect of K2TiO(C2O4)2 Addition in Electrolyte on the Microstructure and Tribological Behavior of Micro-Arc Oxidation Coatings on Aluminum Alloy

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Acta Metallurgica Sinica(English Letters) 2017年第11期30卷 1109-1118页

作者： Jian-Li Wang Wei Yang Da-Peng Xu Xiao-fei yao School of Materials Science and Chemical Engineering Xi'an Technological University Xi'an 710021 China

Micro-arc oxidation （MAO） coatings with different concentrations of K2TiO（C2O4）2 in the sodium silicate base electrolyte were prepared on 6061 aluminum alloy with the aim of promoting a better understanding of the formation mechanisms and tribological behaviors of the coatings. Scanning electron microscopy （SEM） assisted with energy-dis- persive X-ray spectroscopy （EDS）, X-ray photoelectron spectroscopy （XPS） and friction test were employed to charac- terize the MAO processes and microstructure of the resultant coatings. Results showed that the composition and microstructure of the coatings were significantly affected by the addition of KETiO（CaO4）2. A sealing microstructure of MAO coating was obtained with the addition of K2TiO（C2O4）2. Ti element from K2TiO（C2O4）2 was only absorbed into the defects of micropores under surface energy in the early stage, while in the later stage, Ti element was predominant in the micropores and distributed on the coatings under plasma discharge to form TiO2. It was demonstrated that Ti and Si elements from the electrolyte could interact with each other during the MAO process and the interaction mechanism was systematically analyzed. Wear resistance of the MAO coatings with K2TiO（C2O4）2 addition was significantly improved compared with that of the MAO coatings without K2TiO（C2O4）2 addition.

关键词： Aluminum alloy Micro-arc oxidation K2TiO(C2O4)2 Coating formation mechanism Tribological behavior

Could the EU carbon border adjustment mechanism promote climate mitigation?An economy-wide analysis

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Advances in Climate Change Research 2024年第3期15卷 557-571页

作者： Kun ZHANG Yun-fei yao Xiang-Yan QIAN Yu-fei ZHANG Qiao-Mei LIANG Yi-Ming WEI College of Economics and Management Beijing University of TechnologyBeijing 100124China Center for Energy and Environmental Policy Research Beijing Institute of TechnologyBeijing 100081China School of Management and Economics Beijing Institute of TechnologyBeijing 100081China Beijing Key Laboratory of Energy Economics and Environmental Management Beijing 100081China Sinopec Research Institute of Petroleum Engineering SinopecBeijing 100101China College of Economics and Management Nanjing Agricultural UniversityNanjing 210095China

Due to concerns about carbon leakage and sectoral competitiveness,the European Union(EU)proposed implementing the carbon border adjustment mechanism(CBAM).The effectiveness and potential negative consequences of CBAM have aroused extensive *** the perspective of the economy-wide analysis,this study uses a global computable general equilibrium model to explore the rationality of CBAM from the aspects of socioeconomic impact and the effects of promoting climate ***,the potential alternative mechanism of CBAM is *** results show that CBAM can reduce the EU's gross domestic product(GDP)loss;however,the GDP loss in all other regions ***,CBAM raises household welfare losses in most regions,including the ***,although CBAM can reduce the marginal abatement cost in eight regions,it comes at the cost of greater economic ***,the economic and household welfare cost of raising emissions reduction targets in regions like the USA and Japan is substantially higher than the impact of passively accepting the CBAM;therefore,CBAM's ability to drive ambitious emission reduction initiatives may be ***,for the potential alternative mechanism,from the perspective of reducing economic cost and household welfare losses,the EU could implement domestic tax cuts in the short-term and promote global unified carbon pricing in the long-term.

关键词： Border adjustment mechanism Computable general equilibrium model Carbon price Climate policy Global carbon pricing