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Thermal degradation kinetics and lifetime estimation for polycarbonate/polymethylphenylsilsesquioxane

Jiangbo WANG, Zhong XIN

Frontiers of Chemical Science and Engineering 2009, Volume 3, Issue 2,   Pages 167-171 doi: 10.1007/s11705-009-0006-y

Abstract: Meanwhile, the addition of PMPSQ influenced the lifetime of PC, but the composite still met the demand

Keywords： polycarbonate     polymethylphenylsilsesquioxane     thermal degradation kinetics     activation energy     lifetime    

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Full lifetime cost analysis of battery, plug-in hybrid and FCEVs in China in the near future

Zhihua CAI, Xunmin OU, Qian ZHANG, Xiliang ZHANG

Frontiers in Energy 2012, Volume 6, Issue 2,   Pages 107-111 doi: 10.1007/s11708-012-0182-1

Abstract: This paper analyzes the full lifetime cost of battery electric vehicles (BEVs), plug-in hybrid electricThe full lifetime cost comprises the initial and periodic cost of owning and operating the vehicle.Compared with the conventional gasoline vehicles, the full lifetime cost of the BEVs, PHEVs and FCEVsresults also suggest that with reasonably anticipatable technological progress in the long term, the lifetime

Keywords： electric vehicle (EV)     life time cost     China    

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Erratum to: Determination of cut-off time of accelerated aging test under temperature stress for LED lamps Article

Jian HAO, Lei JING, Hong-liang KE, Yao WANG, Qun GAO, Xiao-xun WANG, Qiang SUN, Zhi-jun XU

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 10,   Pages 1678-1678 doi: 10.1631/FITEE.1500483

Abstract: 在LED灯具加速老化过程中，为获得最小截止时间，对其寿命进行快速预估，本文采用5阶滑动平均误差方法分析数据。选用同批次的16个样本，分别进行80℃和85℃应力条件下的加速老化。首先，采用e指数对光通维持率进行拟合，获得每个灯具的加速寿命，进而采用威布尔分布对加速寿命进行拟合，获得中位寿命。其次，采用平均滑动误差方法，可获取不同截止时间下中位寿命预估误差。结果表明：加速老化过程中，存在最小截止时间，该时间可通过滑动平均误差和截止时间的关系确定；当截止时间小于该值时，寿命预估不合理；寿命预估误差随截止时间增加而逐渐减小。对于该类LED灯具，80℃时最小截止时间为1104小时，寿命预估误差为1.15%；85℃时最小截止时间为936小时，寿命预估误差为1.24%。当寿命估计误差约为0.46％时，80 ℃和85 ℃对应的中位寿命分别为7310小时和4598小时。

Keywords： LED lamp     Accelerated aging test     Medium lifetime     Moving average error    

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Erratum to: Determination of cut-off time of accelerated aging test under temperature stress for LED lamps

Jian Hao, Lei Jing, Hong-liang Ke, Yao Wang, Qun Gao, Xiao-xun Wang, Qiang Sun, Zhi-jun Xu,sunq@ciomp.ac.cn

Frontiers of Information Technology & Electronic Engineering 2017, Volume 18, Issue 10,   Pages 1678-1678 doi: 10.1631/FITEE.15e0483

Abstract: Erratum to: , 2017 18(8):1197-1204. doi:

Keywords： LED lamp     Accelerated aging test     Medium lifetime     Moving average error    

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Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing

Chenglong ZHOU,Guojin ZHU,Yongxiang XU,Jifei YU,Xiaoliang ZHANG,Hongzhi SHENG

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 142-147 doi: 10.1007/s11708-015-0357-7

Abstract: The analysis of the failure mechanics, namely hydrogen permeation of vacuum insulated tubing (VIT), indicated that the failure of VIT could be decreased but could not be avoided. To solve this problem, some measures by using non-vacuum materials were proposed and analyzed in this paper. The results show that to fill the tubing with foam-glass beads or high pressure argon may lead to a good performance.

Keywords： vacuum insulated tubing     cyclic steam stimulation     insulation material     thermal conductivity     foam-glass     hydrogen permeation    

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Reasonable Rated Voltage of High and Medium Power Adjustable-Speed Drives for Energy Saving

Ma Xiaoliang

Strategic Study of CAE 2001, Volume 3, Issue 11,   Pages 80-84

Abstract:

A large amount of energy will be saved if adjustable-speed drives are adopted by high and medium power

Keywords： high and medium power     adjustable-speed drives for energy saving     reasonable rated voltage     low voltageinverters     medium voltage inverters     by-pass    

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Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible

Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 171-179 doi: 10.1007/s11709-011-0103-0

Abstract: presents an uncoupled state space solution to three-dimensional consolidation of layered poroelastic mediumStarting from the basic equations of poroelastic medium, and introducing intermediate variables, theadjacent layers and boundary conditions, the uncoupled state space solution of a layered poroelastic mediumcompressibility of pore fluid have remarkable influence on the consolidation behavior of poroelastic medium

Keywords： uncoupled state space solution     layered poroelastic medium     three-dimensional consolidation     anisotropic    

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Preparation of solar selective absorbing CuO coating for medium temperature application

HUANG Qunwu, WANG Yiping, LI Jinhua

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 3,   Pages 256-260 doi: 10.1007/s11705-007-0046-0

Abstract: A new method of preparing CuO solar selective absorbing coating for medium temperature is presented.

Keywords： photoelectron spectroscopy     temperature     pretreatment     absorptivity     microscopy    

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Frontier of continuous structural health monitoring system for short & medium span bridges and condition

Ayaho MIYAMOTO, Risto KIVILUOMA, Akito YABE

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 3,   Pages 569-604 doi: 10.1007/s11709-018-0498-y

Abstract: is becoming an important social problem to make maintenance and rehabilitation of existing short and mediumspan(10-20 m) bridges because there are a huge amount of short and medium span bridges in service inbridge health monitoring system incorporating with the information and communication technologies for lifetimefor bridge health monitoring of mainly short and medium span bridges.In this paper, although there are some useful monitoring methods for short and medium span bridges based

Keywords： condition assessment     short & medium span bridge     structural health monitoring(SHM)     long-term data collection    

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The practice and experience of construction and management for large and medium water projects

Zhang Jiyao

Strategic Study of CAE 2011, Volume 13, Issue 8,   Pages 22-25

Abstract: expounded the duty main body, management emphasis, effective measures and successful cases of large and medium

Keywords： large and medium water projects     item management     practice and experience    

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Liquid metal as energy transportation medium or coolant under harsh environment with temperature below

Yunxia GAO, Lei WANG, Haiyan LI, Jing LIU

Frontiers in Energy 2014, Volume 8, Issue 1,   Pages 49-61 doi: 10.1007/s11708-013-0285-3

Abstract: temperature below zero centigrade are expected to be the next-generation high-performance heat transfer medium

Keywords： liquid metal     cryogenics     low melting point     thermal management     aircraft     liquid cooling     space exploration    

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Control division of agricultural non-point source pollution at medium-sized watershed scale in Southeast

HUANG Jinliang, HONG Huasheng, ZHANG Luoping

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 333-339 doi: 10.1007/s11783-008-0035-7

Abstract: paper presents the study carried out for controlling agricultural non-point source pollution (NSP) in a medium-sized
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Should medium-sized contractors still implement home-made information technologies on construction sites

Conrad BOTON, Éric ST-PIERRE, Gabriel LEFEBVRE

Frontiers of Engineering Management 2020, Volume 7, Issue 1,   Pages 142-158 doi: 10.1007/s42524-019-0065-9

Abstract: Despite the increasing dissemination of the Building Information Modeling (BIM) approach, many firms are still far from BIM and are only starting to adopt information technologies. We conducted an ethnographic action research with an industrial partner that implements information technologies on its construction sites, with a strong preference for home-made applications. Results show that the development of such applications faces difficulties and that multiple iterations and versions are necessary before achieving the expected goals because the required competencies are lacking among internal development teams. Moreover, initial needs evolve considerably throughout the application’s development and evaluation process. However, notwithstanding the difficulties encountered during the different application development phases, the industrial partner believes the decision to be worthwhile because of the desire to have internal control over the project data and the need to consider certain specificities related to business processes.

Keywords： small- and medium-sized enterprises     mobile computing     mobile cloud computing     information technology for    

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Blockchain-driven supply chain finance solution for small and medium enterprises

Jian LI, Shichao ZHU, Wen ZHANG, Lean YU

Frontiers of Engineering Management 2020, Volume 7, Issue 4,   Pages 500-511 doi: 10.1007/s42524-020-0124-2

Abstract: Blockchain has attracted much attention in recent years with the development of cryptocurrency and digital assets. As the underlying technology of cryptocurrency, blockchain has numerous benefits, such as de-centralization, collective maintenance, tamper-resistance, traceability, and anonymity. The potential of the blockchain technology (BT) is widely recognized in the financial field. Although some scholars have proposed the combination of blockchain and supply chain finance (SCF), the details of this combination is rarely mentioned. This study first analyzes the coupling between SCF and blockchain technology. Second, the conceptual framework of blockchain-driven SCF platform (BcSCFP) is presented. Third, the operation process of three SCF models on the BcSCFP is proposed. Finally, a case study combined with actual events is conducted. This paper has a positive practical significance in the operation and management of banks and loan enterprises.

Keywords： blockchain technology     supply chain finance     risk management     smart contract     decentralization    

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Effect of seismic wave propagation in massed medium on rate-dependent anisotropic damage growth in concrete

Alireza DANESHYAR, Hamid MOHAMMADNEZHAD, Mohsen GHAEMIAN

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 346-363 doi: 10.1007/s11709-021-0694-z

Abstract: A semi-infinite medium is formulated based on the domain reduction method in conjunction with standardAccurate representation of radiation damping in a half-space medium and wave propagation effects in a

Keywords： soil–structure interaction     massed foundation     radiation damping     anisotropic damage    

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Title Author Date Type Operation

Thermal degradation kinetics and lifetime estimation for polycarbonate/polymethylphenylsilsesquioxane

Jiangbo WANG, Zhong XIN

Journal Article

Full lifetime cost analysis of battery, plug-in hybrid and FCEVs in China in the near future

Zhihua CAI, Xunmin OU, Qian ZHANG, Xiliang ZHANG

Journal Article

Erratum to: Determination of cut-off time of accelerated aging test under temperature stress for LED lamps

Jian HAO, Lei JING, Hong-liang KE, Yao WANG, Qun GAO, Xiao-xun WANG, Qiang SUN, Zhi-jun XU

Journal Article

Erratum to: Determination of cut-off time of accelerated aging test under temperature stress for LED lamps

Jian Hao, Lei Jing, Hong-liang Ke, Yao Wang, Qun Gao, Xiao-xun Wang, Qiang Sun, Zhi-jun Xu,sunq@ciomp.ac.cn

Journal Article

Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing

Chenglong ZHOU,Guojin ZHU,Yongxiang XU,Jifei YU,Xiaoliang ZHANG,Hongzhi SHENG

Journal Article

Reasonable Rated Voltage of High and Medium Power Adjustable-Speed Drives for Energy Saving

Ma Xiaoliang

Journal Article

Uncoupled state space solution to layered poroelastic medium with anisotropic permeability and compressible

Zhiyong AI, Wenze ZENG, Yichong CHENG, Chao WU

Journal Article

Preparation of solar selective absorbing CuO coating for medium temperature application

HUANG Qunwu, WANG Yiping, LI Jinhua

Journal Article

Frontier of continuous structural health monitoring system for short & medium span bridges and condition

Ayaho MIYAMOTO, Risto KIVILUOMA, Akito YABE

Journal Article

The practice and experience of construction and management for large and medium water projects

Zhang Jiyao

Journal Article

Liquid metal as energy transportation medium or coolant under harsh environment with temperature below

Yunxia GAO, Lei WANG, Haiyan LI, Jing LIU

Journal Article

Control division of agricultural non-point source pollution at medium-sized watershed scale in Southeast

HUANG Jinliang, HONG Huasheng, ZHANG Luoping

Journal Article

Should medium-sized contractors still implement home-made information technologies on construction sites

Conrad BOTON, Éric ST-PIERRE, Gabriel LEFEBVRE

Journal Article

Blockchain-driven supply chain finance solution for small and medium enterprises

Jian LI, Shichao ZHU, Wen ZHANG, Lean YU

Journal Article

Effect of seismic wave propagation in massed medium on rate-dependent anisotropic damage growth in concrete

Alireza DANESHYAR, Hamid MOHAMMADNEZHAD, Mohsen GHAEMIAN

Journal Article