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Comparison on End-of-Life strategies of WEEE in China based on LCA

Bin Lu, Xiaolong Song, Jianxin Yang, Dong Yang

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-0994-7

Abstract: It becomes an urgent issue to develop and adopt an effective End-of-Life (EoL) strategy for EEE in orderEoL strategies for EEE in China need to be evaluated in environment and resources aspects from the lifeLife Cycle Assessment (LCA) is applied to assess the environmental impacts of different EoL scenarios

Keywords： End-of-Life     Waste electrical and electronic equipment     Life cycle assessment     Reuse    

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Analysis and Countermeasures for the Status Quo of the Recycling and Utilization of End-of-Life Vehicles

Chen Yuanhua,Yang Yanping,Hu Shuhan,Xie Linming,Yang Yang,Huang Wei and Chen Zhilin

Strategic Study of CAE 2018, Volume 20, Issue 1,   Pages 113-119 doi: 10.15302/J-SSCAE-2018.01.016

Abstract:

This work discusses the importance of improving the recycling and utilization of end-of-life vehiclesIt then analyzes the situation of recycling and utilizing end-of-life vehicles by using the recycle rateof end-of-life vehicles and their dismantling ability, as well as the administrative regulations andanalysis, we propose an ecologically beneficial evaluation model for the recycling and utilization of end-of-life

Keywords： end-of-life vehicles     recycling     countermeasures     evaluation model    

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Upgrading pyrolytic carbon-blacks (CBp) from end-of-life tires: Characteristics and modification methodologies

Jiaxue Yu, Junqing Xu, Zhenchen Li, Wenzhi He, Juwen Huang, Junshi Xu, Guangming Li

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 2, doi: 10.1007/s11783-019-1198-0

Abstract: Over 1 billion end-of-life tires (ELTs) are generating annually, and 4 billion ELTs are currently abandoned

Keywords： Pyrolysis carbon-blacks     CBp     Post-pyrolysis     Demineralization     Surface modification    

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End-of-life batteries management and material flow analysis in South Korea

Hyunhee Kim, Yong-Chul Jang, Yeonjung Hwang, Youngjae Ko, Hyunmyeong Yun

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1019-x

Abstract: As a result, large amounts of end-of-life (EOL) or waste batteries are generated.

Keywords： End-of-life battery     Recycling     Material flow analysis (MFA)     Extended producer responsibility (EPR)     Resource    

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Electrochemistry during efficient copper recovery from complex electronic waste using ammonia based solutions

Zhi Sun, Hongbin Cao, Prakash Venkatesan, Wei Jin, Yanping Xiao, Jilt Sietsma, Yongxiang Yang

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 3,   Pages 308-316 doi: 10.1007/s11705-016-1587-x

Abstract: Leaching selectivity during metal recovery from complex electronic waste using a hydrochemical process is always one of the generic issues. It was recently improved by using ammonia-based leaching process, specifically for electronic waste enriched with copper. This research proposes electrodeposition as the subsequent approach to effectively recover copper from the solutions after selective leaching of the electronic waste and focuses on recognising the electrochemical features of copper recovery. The electrochemical reactions were investigated by considering the effects of copper concentration, scan rate and ammonium salts. The diffusion coefficient, charge transfer coefficient and heterogeneous reaction constant of the electrodeposition process were evaluated in accordance with different solution conditions. The results have shown that electrochemical recovery of copper from ammonia-based solution under the conditions of selective electronic waste treatment is charge transfer controlled and provide bases to correlate the kinetic parameters with further optimisation of the selective recovery of metals from electronic waste.

Keywords： copper recovery     electronic waste     end-of-life products     selective leaching     electrodeposition    

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Topology-independent end-to-end learning model for improving the voltage profile in microgrids-integrated

Frontiers in Energy 2023, Volume 17, Issue 2,   Pages 211-227 doi: 10.1007/s11708-022-0847-3

Abstract: studies that realize topology identification and decision-making optimization in sequence, the proposed end-to-endIn particular, the generator in SCAN is trained by the core modules in sequence so as to form an end-to-end

Keywords： end-to-end learning     microgrids     voltage profile improvement     generative adversarial network    

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Efficient decoding self-attention for end-to-end speech synthesis Research Article

Wei ZHAO, Li XU

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 7,   Pages 1127-1138 doi: 10.1631/FITEE.2100501

Abstract: has been innovatively applied to text-to-speech (TTS) because of its parallel structure and superior strength in modeling sequential data. However, when used in with an autoregressive decoding scheme, its inference speed becomes relatively low due to the quadratic complexity in sequence length. This problem becomes particularly severe on devices without graphics processing units (GPUs). To alleviate the dilemma, we propose an (EDSA) module as an alternative. Combined with a dynamic programming decoding procedure, TTS model inference can be effectively accelerated to have a linear computation complexity. We conduct studies on Mandarin and English datasets and find that our proposed model with EDSA can achieve 720% and 50% higher inference speed on the central processing unit (CPU) and GPU respectively, with almost the same performance. Thus, this method may make the deployment of such models easier when there are limited GPU resources. In addition, our model may perform better than the baseline Transformer TTS on out-of-domain utterances.

Keywords： Efficient decoding     End-to-end     Self-attention     Speech synthesis    

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Development and application of high-end aerospace MEMS

Weizheng YUAN

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 567-573 doi: 10.1007/s11465-017-0424-3

Abstract:

This paper introduces the design and manufacturing technology of aerospace microelectromechanical systems (MEMS) characterized by high performance, multi-variety, and small batch. Moreover, several kinds of special MEMS devices with high precision, high reliability, and environmental adaptability, as well as their typical applications in the fields of aeronautics and aerospace, are presented.

Keywords： MEMS     design and manufacture technology     aeronautic and aerospace    

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End-to-end delay analysis for networked systems

Jie SHEN,Wen-bo HE,Xue LIU,Zhi-bo WANG,Zhi WANG,Jian-guo YAO

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 9,   Pages 732-743 doi: 10.1631/FITEE.1400414

Abstract: End-to-end delay measurement has been an essential element in the deployment of real-time services inWe propose a novel theoretical framework to analyze the end-to-end delay distributions of networked systemsWe use a signal flow graph to model the delay distribution of a networked system and prove that the end-to-endBy analyzing the time responses of the transfer function, we obtain the end-to-end delay distribution

Keywords： Networked system     End-to-end     Delay distribution    

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Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 228-233 doi: 10.1007/s11709-009-0019-0

Abstract: The application of pile-end post-grouting piles for super-large bridge pile foundations in some important

Keywords： self-balanced testing technique     pile-end post-grouting     bearing capacity     grouting technology    

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Requirement Analysis of High-End Manufacturing Equipment with a Focus on the High-End Equipment Manufacturing

Zhang Jun and Lu Bingheng

Strategic Study of CAE 2017, Volume 19, Issue 3,   Pages 136-141 doi: 10.15302/J-SSCAE-2017.03.019

Abstract:

The continual development of high-end manufacturing equipment is essentialfor the development of the high-end equipment manufacturing industry.during the 13th Five-Year Plan, these authors analyze the new demands and future priorities of high-endenterprises in China, this paper puts forward suggestions to promote the sound development of the high-end

Keywords： high-end equipment manufacturing industry     high-end manufacturing equipment     machine tool     basic manufacturing    

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Engineering management for high-end equipment intelligent manufacturing

Shanlin YANG, Jianmin WANG, Leyuan SHI, Yuejin TAN, Fei QIAO

Frontiers of Engineering Management 2018, Volume 5, Issue 4,   Pages 420-450 doi: 10.15302/J-FEM-2018050

Abstract:

The high-end equipment intelligent manufacturing (HEIM) industry is of strategic importance to nationalinfluence on HEIM and its engineering management activities, such as product system construction, product life

Keywords： high-end equipment     intelligent manufacturing     engineering management     information technology    

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An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1515-1529 doi: 10.1007/s11709-022-0887-0

Abstract: Based on the domain reduction idea and artificial boundary substructure method, this paper proposes an FK-FEM hybrid approach by integrating the advantages of FK and FEM (i.e., FK can efficiently generate high-frequency three translational motion, while FEM has rich elements types and constitutive models). An advantage of this approach is that it realizes the entire process simulation from point dislocation source to underground structure. Compared with the plane wave field input method, the FK-FEM hybrid approach can reflect the spatial variability of seismic motion and the influence of source and propagation path. This approach can provide an effective solution for seismic analysis of underground structures under scenario of earthquake in regions where strong earthquakes may occur but are not recorded, especially when active faults, crustal, and soil parameters are available. Taking Daikai subway station as an example, the seismic response of the underground structure is simulated after verifying the correctness of the approach and the effects of crustal velocity structure and source parameters on the seismic response of Daikai station are discussed. In this example, the influence of velocity structure on the maximum interlayer displacement angle of underground structure is 96.5% and the change of source parameters can lead to the change of structural failure direction.

Keywords： source-to-structure simulation     FK-FEM hybrid approach     underground structures     point dislocation source    

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Optimization of cold-end system of thermal power plants based on entropy generation minimization

Frontiers in Energy 2022, Volume 16, Issue 6,   Pages 956-972 doi: 10.1007/s11708-021-0785-5

Abstract: Cold-end systems are heat sinks of thermal power cycles, which have an essential effect on the overallHowever, little attention has been paid to the optimization of the cold-end system with multi-pressureThe results show that the entropy generation rate of the multi-pressure cold-end system is less thanthat of the single-pressure cold-end system when the total condenser area is constant.quadruple-pressure cold-end systems are 575 and 580 k$/a, respectively.

Keywords： cold-end system     entropy generation minimization     optimization     economic analysis     genetic algorithm    

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A hybrid method for product low-end disruptive innovation

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 3, doi: 10.1007/s11465-022-0690-6

Abstract: Low-end disruptive innovation (LDI) enables a product to meet the most price-sensitive customers in thelow-end market.

Keywords： low-end disruptive innovation     product design     design improvement     theory of inventive problem solving    

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Title Author Date Type Operation

Comparison on End-of-Life strategies of WEEE in China based on LCA

Bin Lu, Xiaolong Song, Jianxin Yang, Dong Yang

Journal Article

Analysis and Countermeasures for the Status Quo of the Recycling and Utilization of End-of-Life Vehicles

Chen Yuanhua,Yang Yanping,Hu Shuhan,Xie Linming,Yang Yang,Huang Wei and Chen Zhilin

Journal Article

Upgrading pyrolytic carbon-blacks (CBp) from end-of-life tires: Characteristics and modification methodologies

Jiaxue Yu, Junqing Xu, Zhenchen Li, Wenzhi He, Juwen Huang, Junshi Xu, Guangming Li

Journal Article

End-of-life batteries management and material flow analysis in South Korea

Hyunhee Kim, Yong-Chul Jang, Yeonjung Hwang, Youngjae Ko, Hyunmyeong Yun

Journal Article

Electrochemistry during efficient copper recovery from complex electronic waste using ammonia based solutions

Zhi Sun, Hongbin Cao, Prakash Venkatesan, Wei Jin, Yanping Xiao, Jilt Sietsma, Yongxiang Yang

Journal Article

Topology-independent end-to-end learning model for improving the voltage profile in microgrids-integrated

Journal Article

Efficient decoding self-attention for end-to-end speech synthesis

Wei ZHAO, Li XU

Journal Article

Development and application of high-end aerospace MEMS

Weizheng YUAN

Journal Article

End-to-end delay analysis for networked systems

Jie SHEN,Wen-bo HE,Xue LIU,Zhi-bo WANG,Zhi WANG,Jian-guo YAO

Journal Article

Experimental study on pile-end post-grouting piles for super-large bridge pile foundations

Weiming GONG, Guoliang DAI, Haowen ZHANG

Journal Article

Requirement Analysis of High-End Manufacturing Equipment with a Focus on the High-End Equipment Manufacturing

Zhang Jun and Lu Bingheng

Journal Article

Engineering management for high-end equipment intelligent manufacturing

Shanlin YANG, Jianmin WANG, Leyuan SHI, Yuejin TAN, Fei QIAO

Journal Article

An end-to-end 3d seismic simulation of underground structures due to point dislocation source by using

Zhenning BA; Jisai FU; Zhihui ZHU; Hao ZHONG

Journal Article

Optimization of cold-end system of thermal power plants based on entropy generation minimization

Journal Article

A hybrid method for product low-end disruptive innovation

Journal Article