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An Empirical Study on the Internal Control Efficiency of Listed Engineering Companies
Zhi-wen Wang,Jing Tong
《工程管理前沿(英文)》 2015年 第2卷 第2期 页码 159-164 doi: 10.15302/J-FEM-2015026
关键词: internal control efficiency board of directors independent directors audit committee
Real-world fuel consumption of light-duty passenger vehicles using on-board diagnostic (OBD) systems
Xuan Zheng, Sheng Lu, Liuhanzi Yang, Min Yan, Guangyi Xu, Xiaomeng Wu, Lixin Fu, Ye Wu
《环境科学与工程前沿(英文)》 2020年 第14卷 第2期 doi: 10.1007/s11783-019-1212-6
关键词: Fuel consumption Light-duty passenger vehicles On-board diagnostic systems
黄锐
《中国工程科学》 2008年 第10卷 第11期 页码 43-46
针对冷却塔中螺旋结构类型的气液交换塔,提出其内部螺旋塔板形状的设计方法,包括塔壁上外螺旋线和塔中心轴管上内螺旋线的位置确定,以及两线之间螺旋曲面板在平面上的拓扑尺寸。通过塔的几何参数确定螺旋曲面板设计的关键参数,可实现扭曲状塔板与塔壁及内轴的准确配合。
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《医学前沿(英文)》 2015年 第9卷 第2期 页码 239-250 doi: 10.1007/s11684-015-0392-0
Township hospitals, the main provider of rural primary healthcare in China, are severely understaffed. International studies on factors influencing rural working are increasing; however, studies on factors affecting the recruitment and retention of health workers in Chinese township hospitals are limited. The current study aims to understand the motivation of health workers and arrive at a systematic framework of pluralistic factors that would help support health workers in terms of receiving posts and remaining in posts in township hospitals. A three-stage integrated quantitative and qualitative methodology was employed. First, a survey on 120 directors of township hospitals was conducted to learn the latest status of health workers in township hospitals and distinguish existing problems. Second, after sending these problems back to the directors, an open-ended pen-and-paper survey was conducted to ask the directors to identify the factors influencing the attraction and retention of health workers in township hospitals. Third, four focus groups were conducted to gauge the underlying reasons. Five problems from the questionnaire survey were recognized, and numbers of thematic factors were identified at the individual, professional, and treatment environment from the pen-and-paper survey and focus group. Similar to other studies, this framing of both non-financial and financial elements affected the attraction and retention of health workers in township hospitals, thereby filling the gap in a Chinese context. Although several factors had been recognized earlier, our findings further highlighted the importance of these factors. Meanwhile, the factors identified in this study were barely explored in literature. This paper identifies and develops multi-faceted factors to call for a bundled package of multidimensional incentives if decision-makers get interested. The evidence-based findings in our study can be used to provide China-specific policy recommendations on how to recruit and retain health workers in rural areas of China.
关键词: recruitment retention health workers township hospitals rural regions
Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals
《环境科学与工程前沿(英文)》 2022年 第16卷 第11期 doi: 10.1007/s11783-022-1581-0
● The co-existing metals in WPCBs has positive catalytic influence in pyrolysis.
关键词: Waste printed circuit board Catalyst Pyrolysis Kinetics
Yao CHEN, Jinhui LI, Huabo DUAN, Zhishi WANG
《环境科学与工程前沿(英文)》 2011年 第5卷 第2期 页码 167-174 doi: 10.1007/s11783-011-0308-4
关键词: waste printed wiring board (PWB) residue steam thermal-crack mechanical properties
Design of noise-reduction seats for high-speed trains
Xiaojun DENG, Yanju ZHAO, Haijin ZHANG, Renzhong SHUAI, Leiwei ZHU
《机械工程前沿(英文)》 2018年 第13卷 第3期 页码 385-389 doi: 10.1007/s11465-017-0438-x
Noise-reduction seats have been successfully used in concert halls, theaters, and other places that reduce noise. In this study, a new noise-reduction seat design was proposed for high-speed trains, which have unique interior noise spectral characteristics. First, before the noise-reduction seat models were fabricated, the parameters of high-performance sound-absorbing materials and perforated plates were selected by conducting a standing-wave tube test. The sound-absorption effects of the noise-reduction seats and normal seats were investigated and compared in a reverberation chamber. Test results showed that, compared with normal seats, the noise-reduction seats obtained a significantly improved sound-absorption coefficient in the entire frequency band. Furthermore, the test results were used to establish a simulation model for calculation, and the simulation results proved that the noise-reduction seats substantially reduced the noise in an entire train car. Finally, the noise-reduction seats were fabricated and installed in a full train car of an actual high-speed train. The test results showed that, compared with the normal seats, the noise-reduction seats decreased the noise level at a standard point in the passenger car by 1.5 dB. Therefore, the noise-reduction seats are effective in noise reduction.
关键词: high-speed train sound-absorbing materials perforated board noise-reduction seats
郭峰林,管庶安,孔岩
《中国工程科学》 2012年 第14卷 第11期 页码 103-106
基于AOI的PCB检测系统中,样本PCB图像与待测PCB图像之间存在错位偏差,需要对准后才能进行下一步的检测工作。首先,依据PCB线路特征,定义了样本图像边缘点的概念,制订了边缘点抽样规则。针对待测PCB图像,提出了基于样本边缘点对准强度评价函数,建立了对准评价模型及对准快速算法。最后,通过PCB对准实验以及大量的实际测试应用,证明对准强度评价模型能准确地描述待测PCB图像与样本图像间的对准程度,对准模型为后期的缺陷搜索提供了可靠的偏移参数。
基于新型拓扑Halbach阵列的PCB定子无铁心轴向磁通电机设计 Regular Papers
Xiao-yuan WANG, Xiang LI, Chun-peng LI, Si-jia XU, Le-tao LING
《信息与电子工程前沿(英文)》 2019年 第20卷 第3期 页码 414-424 doi: 10.1631/FITEE.1700345
基于时序优化长短期记忆和自适应阈值的高排放重型柴油车识别 Research Article
许镇义1,王仁军1,2,曹洋1,3,4,康宇1,3,4
《信息与电子工程前沿(英文)》 2023年 第24卷 第11期 页码 1633-1646 doi: 10.1631/FITEE.2300005
物联网隐私与安全联合参考架构 Position Paper
Musab KAMAL1, Imran RASHID1, Waseem IQBAL1, Muhammad Haroon SIDDIQUI1, Sohaib KHAN1, Ijaz AHMAD2
《信息与电子工程前沿(英文)》 2023年 第24卷 第4期 页码 481-508 doi: 10.1631/FITEE.2200368
标题 作者 时间 类型 操作
An Empirical Study on the Internal Control Efficiency of Listed Engineering Companies
Zhi-wen Wang,Jing Tong
期刊论文
Real-world fuel consumption of light-duty passenger vehicles using on-board diagnostic (OBD) systems
Xuan Zheng, Sheng Lu, Liuhanzi Yang, Min Yan, Guangyi Xu, Xiaomeng Wu, Lixin Fu, Ye Wu
期刊论文
Sustaining health workforce recruitment and retention in township hospitals: a survey on 110 directors
null
期刊论文
Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals
期刊论文
Thermal cracking of waste printed wiring boards for mechanical recycling by using residual steam preprocessing
Yao CHEN, Jinhui LI, Huabo DUAN, Zhishi WANG
期刊论文
Design of noise-reduction seats for high-speed trains
Xiaojun DENG, Yanju ZHAO, Haijin ZHANG, Renzhong SHUAI, Leiwei ZHU
期刊论文
基于新型拓扑Halbach阵列的PCB定子无铁心轴向磁通电机设计
Xiao-yuan WANG, Xiang LI, Chun-peng LI, Si-jia XU, Le-tao LING
期刊论文