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Comparing Provincial Vehicles Cradle-to-Grave (C2g) Environmental efficiency Evaluation in China: A Network Data Envelopment Analysis (DEA) with Life Cycle Analysis (Lca) Approach

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SSRN 2024年

作者： Tang, Guwen Wang, Nenmin Zhang, Meng School of Management Xi’an Jiaotong University Shaanxi Xi’an710049 China The Key Lab of the Ministry of Education for Process Management & Efficiency Engineering Shaanxi Xi’an710049 China School of Economics and Management Xi’an Technological University Shaanxi Xi’an710021 China

The main pollution stages and pollutants in electric vehicles (EVs) differ from those in internal combustion engine vehicles (ICEVs), thereby complicating the environmental efficiency of vehicles in regions with varying resource endowments. Most studies have focused on the energy production and usage stages in the life cycle assessment (LCA) of different vehicles in different areas. The lack of a comprehensive assessment at the vehicle manufacturing stage distorts environmental efficiency evaluation in different areas. In this study, the cradle-to-grave (C2G) lifecycles of five different environmental efficiencies of ICEVs, hybrid vehicles (HEVs), plug-in hybrid electric vehicles (PHEVs), and EVs from 30 Chinese provinces were compared. By integrating LCA with network data envelopment analysis (DEA) models, recommendations for enhancing each province’s five different environmental efficiencies were provided, and a detailed vehicle portrait for each province was created to better align with reality. The results indicated that EVs and PHEVs outperformed ICEVs regarding energy and carbon efficiencies. The use of cleaner energy sources and improvements in vehicle manufacturing, especially battery manufacturing, could further enhance the particulate matter, photochemical smog, and terrestrial acidification (TA) efficiencies of EVs and PHEVs. However, the TA efficiencies of EVs and PHEVs are still lower than those of ICEVs. The research findings provide data support on the emissions of different vehicle pollutants in 30 provinces and prioritize policy suggestions to enhance the C2G environmental efficiency of vehicles. © 2024, The Authors. All rights reserved.

关键词： Data envelopment analysis

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Combined control of fluid adsorption capacity and initial permeability on coal permeability

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International Journal of Coal Science & Technology 2022年第6期9卷 127-137页

作者： Xiaolei Liu Jianping Wei Guoying Wei Caifang Wu Cao Liu Xiaoming Ni State Key Laboratory Cultivation Base for Gas Geology and Gas Control Henan Polytechnic University454000 JiaozuoHenanChina College of Safety Science and Engineering Henan Polytechnic University454000 JiaozuoHenanChina State Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization 454000 JiaozuoHenanChina Key Laboratory of Coalbed Methane Resource and Reservoir Formation Process Ministry of EducationSouth Jiefang Road221008 XuzhouJiangsuChina Collaborative Innovation Center of Coalbed Methane(Shale Gas)in Central Plains Economic Zone 454000 JiaozuoChina

The variations of strain and permeability of coal were systematically studied through the physical simulation of N2 and water *** effects of fluid adsorption capacity and initial permeability on strain,permeability and the dominant effect of pore pressure were *** adsorption strain and strain rate of coal during water injection are significantly higher than those during N2 *** edge of free adsorption exists in the early phase of N2 and water injection,which is related to fluid *** this boundary,the strain rate and pore pressure are ***,the injec-tion time of initial stage accounts for about 20%of the total injection time,but the strain accounts for 70%of the total *** water injection,this boundary is about half of water saturation of ***,the influence of pore pressure on permeability is complex,which is controlled by adsorption capacity and initial permeability of *** the initial permeability is large enough,the effect of adsorption strain on permeability is relatively weak,and the promoting effect of pore pressure on fluid migration is ***,the permeability increases with increasing pore *** the initial permeability is relatively low,the pore pressure may have a dominant role in promoting fluid migration for the fluid with weak adsorption ***,for the fluid with strong adsorption capacity,the adsorption strain caused by pore pressure may play a leading role,and the permeability reduces first and then ascends with increasing pore pressure.

关键词： Initial permeability Adsorption capacity Free adsorption Pore pressure Coal strain

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Multi-component quantitative and feed-forward neural network for pattern classification of raw and wine-processed Corni Fructus

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Traditional Medicine Research 2023年第1期8卷 12-19页

作者： Yu Liu Ying-Fang Cui Dan-Dan Shi Shu-Li Man Xia Li Wen-Yuan Gao State Key Laboratory of Food Nutrition and Safety/Key Laboratory of Industrial Microbiology Ministry of Education/Tianjin Key Laboratory of Industry Microbiology/National and Local United Engineering Lab of Metabolic Control Fermentation Technology/China International Science and Technology Cooperation Base of Food NutritionSafety and Medicinal Chemistry/College of BiotechnologyTianjin University of Science&TechnologyTianjin 300457China Tianjin Key Laboratory for Modern Drug Delivery&High-Efficiency School of Pharmaceutical Science and TechnologyTianjin UniversityTianjin 300072China.

Background:To promote the quality evaluation,clarify the processing mechanism and distinguish origins of Corni Fructus(cornus)from different ***:This study developed a high performance liquid chromatography method for simultaneous determination of 5-hydroxymethylfurfural,2 phenolic acids and 4 iridoid glycosides and the reference fingerprint of cornus from different *** addition,the feedforward neural network model provided a pattern classification of sample ***:The content of morroniside and loganin were the highest in all raw cornus samples ranging from 9.45μg/mg to 16.3μg/mg and 6.64μg/mg to 13.7μg/mg,*** level of sweroside in raw cornus from Henan(0.83μg/mg^(-1).39μg/mg)and Zhejiang(0.64μg/mg^(-1).17μg/mg)were greater than other *** wine-processing,the glucose or fructose were dehydrated to increase the levels of *** C-4 position of-COOCH3 of hot-sensitive iridoid glycosides was hydrolyzed to generate-COOH as stable *** derivatives may be degraded to increase the content of phenolic ***,an excellent feedforward neural network model for identification of raw cornus and wine-prepared cornus was established which could distinguish the sample ***:This work provided a trustworthy method to evaluate the quality and distinguish the sources of ***,the clear processing mechanism provided a scientific foundation for controlling the cornus quality during wine-processing.

关键词： Cornus officinalis Sieb.et Zucc. quality evaluation fingerprints processing mechanism feedforward neural network

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Study of Cracking Mechanism and Wear Resistance in Laser Cladding Coating of Ni-based Alloy

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Chinese Journal of Mechanical engineering 2021年第5期34卷 259-272页

作者： Zhenglei Yu Lunxiang Li Deqiang Zhang Guangfeng Shi Guang Yang Zezhou Xu Zhihui Zhang Key Lab of Bionic Engineering Ministry of EducationJilin UniversityChangchun 130022China State Key Laboratory of Automotive Simulation and Control Jilin UniversityChangchun 130022China College of Mechanical and Electric Engineering Changchun University of Science and TechnologyChangchun 130022China College of Mechanical Engineering and Automation Liaoning University of TechnologyJinzhou 121001China Key Laboratory of Fundamental Science for National Defense of Aeronautical Digital Manufacturing Process Shenyang Aerospace UniversityShenyang 110136China

Nickel-based alloy coatings were widely used for the remanufacturing of dies and moulds by laser cladding,but the crack sensitivity would be increase due to the higher strength and hardness,which reduced the wear resistance of Ni-based *** this paper,Ni-based coatings with the addition of a plastic phase(an austenitic stainless net)were prepared using laser cladding technology,and the CeO_(2)was added in cladding *** cracking mechanism,microhardness,microstructure,phase composition,and wear properties were *** relationship between thermal stress and the elastic and plastic fracture had been developed from the standpoint of fracture mechan-ics and thermal elastic fracture *** fracture criterion of the nickel-based coating was obtained,and the study has shown that the crack sensitivity could be reduced by decreasing the thermal expansion coefficientΔα.Thus,a new method was proposed,which the stainless steel nets were prefabricated on the *** was found that the number of cracks reduced significantly with the addition of stainless steel *** the stainless steel net with 14 mesh was added in Ni-based coatings,the average microhardness of nickel composite coating was 565 HV_(0.2),which was 2.6 times higher than that of the 45 steel *** the rare earth oxide 4 wt.%CeO_(2)and stainless steel net were added in the Ni-based coating reducing the microhardness(the average microhardness is 425 HV_(0.2)),the wear resistance of it improved *** wear volume of Ni-based composite coating was 0.56×10^(−5) mm^(3)·N^(−1)·m^(−1),which was 85.1%lower than that of 45 *** experiment results have shown that the Nickel-based composite coating is equipped with low crack sensitivity and high abrasive resistance with austenitic stainless net and the rare earth oxide 4 wt.%*** research offers an efficient solution to produce components with low crack susceptibility and high wear-resistance coatings fabricated

关键词： Laser cladding Wear resistance Crack sensitivity Stainless steel net Rare earth oxide

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Evaluating the Moderated Mediation Effects Of Switching Costs in the Link between Social Capital and NPD Performance

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SSRN 2023年

作者： Li, Yi Ndubisi, Nelson Oly Li, Gang Xu, Jinpeng School of Economics & Management Xidian University Xi’an China College of Business & Economics Qatar University Doha Qatar School of Management Xi’an Jiao tong University Xi'An China The State Key Lab for Manufacturing Systems Engineering Xi’an China The Key Laboratory of the Ministry of Education for Process Control and Efficiency Projects Xi’an China

In this study, we explore the causes of switching costs from both supplier and customer side, discuss the performance outcomes in the setting of new product development, and investigate the role that switching costs play as moderators and mediators in social capital-new product development performance *** on data from 214 Chinese manufacturers, we employ the structural equation model to examine our conceptual model and hypotheses. Our results indicate that relationship quality and customer involvement separately positively and negatively affect switching costs, respectively, which negatively affects new product development performance. Switching costs mediate and moderate the relationship between social capital and new product development performance. Our findings indicate that switching costs significantly and positively moderate the relationship between relationship quality and new product development performance. On the other hand, switching costs insignificantly and negatively moderate the relationship between customer involvement and new product development performance. © 2023, The Authors. All rights reserved.

关键词： Product development

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Tuning the photocatalytic water-splitting performance with the adjustment of diameter in an armchair WSSe nanotube

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Journal of Energy Chemistry 2021年第10期30卷 228-235,I0007页

作者： Lin Ju Penglan Liu Yifan Yang Liran Shi Gui Yang Li Sun School of Physics and Electric Engineering Anyang Normal UniversityAnyang 455000HenanChina School of Mechanical Medical and Process EngineeringQueensland University of TechnologyGardens Point CampusQLD 4001BrisbaneAustralia School of Electronic and Information Engineering Liaoning Technical UniversityHuludao 125105LiaoningChina Key Lab of Advanced Transducers and Intelligent Control System Ministry of EducationTaiyuan University of TechnologyTaiyuan 030024ShanxiChina

Due to the enigmatical electrostatic potential difference between the inside and outside layers,the relationship between the diameter and the photocatalytic property of the Janus transition metal dichalcogenides nanotube is still *** this job,for the first time we calculate the electrostatic potential difference of the Janus WSSe armchair nanotubes with corresponding building block models through the first principles *** electrostatic potential difference increases as the diameter ***,it is observed that the WSSe armchair nanotubes with smaller diameter have stronger oxidation capacity,weaker reduction capacity,and higher solar-to-hydrogen conversion ***,the diminution of diameter could make the band gap drop,and even cause a direct-indirect transformation of band *** adjustment of diameter could also regulate the ability of adsorbing water molecules at the insider and outside ***,the suitable band edge positions,wide optical absorbance region(to the near-infrared),outstanding solar-to-hydrogen efficiency(up to 28.99%),high carrier separation,adequate photoexcited carrier driving forces,as well as the energetic and thermal stability,render these nanotubes befitting the photocata lytic water-splitting *** study not only predicts a kind of ideal water-splitting photocatalyst,but also shows an effective way to improve their photocatalytic performances.

关键词： Photocatalysis Water-splitting Janus TMD nanotube Density functional theory calculations

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Amino-Functionalized Ce-Mof Synthesized by Micro-Plasma: As a Dual-Mode Colorimetric/Fluorescence Sensor for On-Site Analysis of Doxycycline

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SSRN 2025年

作者： Xia, Yi Yang, Lin Hu, Miao Zhang, Jun Tan, Chao Yan, Yiting Yang, Congling Xiao, Yaoyu Jiang, Zhi-Chao Huang, Ke Xiong, Xiaoli Jiang, Xue Key Laboratory of Land Resources Evaluation and Monitoring in Southwest Ministry of Education College of Chemistry and Materials Science Sichuan Normal University Chengdu610068 China Key Lab of Process Analysis and Control of Sichuan Universities Yibin University Sichuan Yibin644000 China School of Mechanical Engineering Sichuan University Chengdu610065 China State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu610065 China

The improper and excessive use of doxycycline (DOX) poses a significant risk to public health through food residues and soil/water contamination, however on-site and accurately distinguish DOX from complex substrates (especially other tetracycline antibiotics which with similar molecular structures) remains a significant challenge for field analysis. In this work, an amino-functionalized cerium-based metal-organic framework (NH2-Ce-MOF) with high peroxidase activity was one-step synthesized by dielectric barrier discharge microplasma. The DOX adsorbs more readily on the (001) crystal faces of NH2-Ce-MOF compared with other tetracyclines, thus facilitating its distinct recognition. Based on the inward filtration effect (IFE) and selective adsorption between NH2-Ce-MOF and TMB, a high effective dual-mode colorimetric/fluorescent DOX sensor was developed and applied for on-site analyzing really pharmaceutical and livestock sewage samples by smartphone assisted visualization, with a concentration range of 0.1-150 μM and a low limit of detection (LOD) of 79 nM with recoveries ranging from 96.56%-107.22%. © 2025, The Authors. All rights reserved.

关键词： Dielectric barrier discharge

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Competition and Cooperation Mechanism Between Agency Selling and Wholesale: An Application of the Emerging E-commerce Model

Competition and Cooperation Mechanism Between Agency Selling...

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IEEE International Conference on Industrial engineering and engineering Management

作者： Haonan Wang C. K. M. Lee Ping Ji Gang Li Department of Industrial and Systems Engineering The Hong Kong Polytechnic University Hong Kong China Laboratory for Artificial Intelligence in Design Hong Kong Science Park New Territories Hong Kong SAR China School of Intelligent Finance and Business XJTLU Entrepreneur College (Taicang) Xi'an Jiaotong - Liverpool University China School of Management Xi'an Jiaotong University The State Key Lab for Manufacturing Systems Engineering The Key Lab of the Ministry of Education for Process Control and Efficiency Engineering Xi'an China

Recently, the platform economy allows enterprises to collaborate with business partners and provide additional channels for various parties. E-commerce platforms have become integral channels for connecting suppliers with consumers. In the platform economy, agency selling and reselling are two predominant sales models that often coexist for the same product types, resulting in a competitive relationship. This study analyzes transaction data for 30,000 Stock Keeping Units (SKUs) provided by the Chinese e-commerce platforms over one month. We employ three models to compare the sales quantity and profits of manufacturers and online platforms and to identify the most efficient mode for stakeholders based on the model establishment and empirical evidence. Our findings suggest that apart from the existing channel to provide products to customers, manufacturers enter the platform which will increase the profit of platform operators. On the other hand, platform operators may also affect the profit of the manufacturers.

关键词：

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The 2022 report of synergetic roadmap on carbon neutrality and clean air for China:Accelerating transition in key sectors

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Environmental Science and Ecotechnology 2024年第3期19卷 4-18页

作者： Yu Lei Zhicong Yin Xi Lu Qiang Zhang Jicheng Gong Bofeng Cai Cilan Cai Qimin Chai Huopo Chen Renjie Chen Shi Chen Wenhui Chen Jing Cheng Xiyuan Chi Hancheng Dai Xiangzhao Feng Guannan Geng Jianlin Hu Shan Hu Cunrui Huang Tiantian Li Wei Li Xiaomei Li Jun Liu Xin Liu Zhu Liu Jinghui Ma Yue Qin Dan Tong Xuhui Wang Xuying Wang Rui Wu Qingyang Xiao Yang Xie Xiaolong Xu Tao Xue Haipeng Yu Da Zhang Ning Zhang Shaohui Zhang Shaojun Zhang Xian Zhang Xin Zhang Zengkai Zhang Bo Zheng Yixuan Zheng Jian Zhou Tong Zhu Jinnan Wang Kebin He Center of Air Quality Simulation and System Analysis Chinese Academy of Environmental PlanningBeijing100041China Center for Carbon Neutrality Chinese Academy of Environmental PlanningBeijing100041China Key Laboratory of Meteorological Disaster Ministry of Education/Joint International Research Laboratory of Climate and Environment Change(ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters(CIC-FEMD)Nanjing University of Information Science&TechnologyNanjing210044China State Key Joint Laboratory of Environment Simulation and Pollution Control School of EnvironmentTsinghua UniversityBeijing100084China Institute for Carbon Neutrality Tsinghua UniversityBeijing100084China Ministry of Education Key Laboratory for Earth System Modelling Department of Earth System ScienceTsinghua UniversityBeijing100084China State Key Joint Laboratory for Environment Simulation and Pollution Control College of Environmental Sciences and Engineering and Center for Environment and HealthPeking UniversityBeijing100871China National Center for Climate Change Strategy and International CooperationBeijing100035China Nansen-Zhu International Research Centre Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing100029China School of Public Health Key Lab of Public Health Safety of the Ministry of Education and Key Lab of Health Technology Assessment of the Ministry of HealthFudan UniversityShanghai200032China School of Economics and Management Beijing University of Chemical TechnologyBeijing100029China Department of Earth System Science University of CaliforniaIrvineCA92697USA National Meteorological Center China Meteorological AdministrationBeijing100081China College of Environmental Sciences and Engineering Peking UniversityBeijing100871China Policy Research Center for Environment and Economy Ministry of Ecology and Environment of the People's Republic of ChinaBeijing100029China Jiangsu Key Laboratory of Atmospheric Environment Monitoring

China is now confronting the intertwined challenges of air pollution and climate *** the high synergies between air pollution abatement and climate change mitigation,the Chinese government is actively promoting synergetic control of these two *** Synergetic Roadmap project was launched in 2021 to track and analyze the progress of synergetic control in China by developing and monitoring key *** Synergetic Roadmap 2022 report is the first annual update,featuring 20 indicators across five aspects:synergetic governance system and practices,progress in structural transition,air pollution and associated weather-climate interactions,sources,sinks,and mitigation pathway of atmospheric composition,and health impacts and benefits of coordinated *** to the comprehensive review presented in the 2021 report,the Synergetic Roadmap 2022 report places particular emphasis on progress in 2021 with highlights on actions in key sectors and the relevant *** milestones include the proportion of non-fossil power generation capacity surpassing coal-fired capacity for the first time,a decline in the production of crude steel and cement after years of growth,and the surging penetration of electric ***,in 2022,China issued the first national policy that synergizes abatements of pollution and carbon emissions,marking a new era for China's pollution-carbon *** changes highlight China's efforts to reshape its energy,economic,and transportation structures to meet the demand for synergetic control and sustainable ***,the country has witnessed a slowdown in carbon emission growth,improved air quality,and increased health benefits in recent years.

关键词： Synergetic roadmap Carbon neutrality Clean air

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Comparison research on X-ray image quality defects detection algorithm in semiconductor manufacturing

Comparison research on X-ray image quality defects detection...

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2019 IEEE International Conference on Smart Manufacturing, Industrial and Logistics engineering, SMILE 2019

作者： Hou, Hongyu Wu, Feng Key Lab of the Ministry of Education for Process Control Efficiency Engineering School of Management xi'An Jiaotong University Xi'an China

ISBN: (纸本)9781538679982

Detecting product quality defects through image recognition technology is one of the key technologies of intelligent manufacturing, and also an important step for enterprises to construct smart factory. In the capsulation step of the semiconductor enterprise, the internal wire bonding of the chip is easily to receive the interference and to produce the defects. Companies need to pick out defective chips to avoid them going to the market. Traditional way is to use artificial vision visual inspection, which may lead to low efficiency and high labor cost. This study intends to use machine vision detection method based on image processing technology to identify the defect of the chip and to replace the workers artificial detection work. This paper proposes two algorithms to solve such above problems. The template matching algorithm (TMA) is to determine whether the chip is defective mainly based on the standard template. The neighborhood comparison algorithm (NCA) mainly calculates similarity of the neighbor chips to judge the target chip's defects. The algorithm is implemented by Halcon software. A German semiconductor company has provided enough samples to support our research. The experimental results show that the two algorithms are effective in defect detection of specific products. The advantage of the TMA lies in its processing speed, but the applicability and accuracy of NCA is more excellent. The algorithm proposed in this study can be used for enterprise by being integrated into the actual detection process. © 2019 IEEE.

关键词： Template matching

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