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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
Non-toxic, high selectivity process for the extraction of precious metals from waste printed circuit
《环境科学与工程前沿(英文)》 2023年 第17卷 第10期 doi: 10.1007/s11783-023-1723-z
● Au, Ag and Pd were recovered from WPCBs with high efficiencies.
关键词: Thiosulfate Printed circuit boards Precious metals Leaching Hydrometallurgy
Hao WANG, Fengge ZHANG, Tao GUAN, Siyang YU
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 420-426 doi: 10.1007/s11465-017-0439-9
A brushless electrically excited synchronous generator (BEESG) with a hybrid rotor is a novel electrically excited synchronous generator. The BEESG proposed in this paper is composed of a conventional stator with two different sets of windings with different pole numbers, and a hybrid rotor with powerful coupling capacity. The pole number of the rotor is different from those of the stator windings. Thus, an analysis method different from that applied to conventional generators should be applied to the BEESG. In view of this problem, the equivalent circuit and electromagnetic torque expression of the BEESG are derived on the basis of electromagnetic relation of the proposed generator. The generator is simulated and tested experimentally using the established equivalent circuit model. The experimental and simulation data are then analyzed and compared. Results show the validity of the equivalent circuit model.
关键词: wind power brushless electrically excited synchronous generator hybrid rotor equivalent circuit
Copper recovery from waste printed circuit boards concentrated metal scraps by electrolysis
Xiaonan Liu, Qiuxia Tan, Yungui Li, Zhonghui Xu, Mengjun Chen
《环境科学与工程前沿(英文)》 2017年 第11卷 第5期 doi: 10.1007/s11783-017-0997-4
关键词: Waste printed circuit boards (WPCBs) Copper Recovery rate Purity Electrolysis
Copper fractal growth during recycling from waste printed circuit boards by slurry electrolysis
《环境科学与工程前沿(英文)》 2021年 第15卷 第6期 doi: 10.1007/s11783-021-1405-7
• Copper fractal growth was observed during WPCBs recycling by slurry electrolysis.
关键词: Dendritic copper Fractal growth WPCBs Slurry electrolysis
Multiobjective trajectory optimization of intelligent electro-hydraulic shovel
《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0706-2
关键词: trajectory planning electro-hydraulic shovel cubic polynomial S-curve multiobjective optimization entropy weight technique
Enhancement of open circuit voltage in organic solar cells by doping a fluorescent red dye
Qing LI, Junsheng YU, Yue ZANG, Nana WANG, Yadong JIANG
《能源前沿(英文)》 2012年 第6卷 第2期 页码 179-183 doi: 10.1007/s11708-012-0177-y
关键词: organic solar cells (OSCs) open circuit voltage fluorescent dye doping 4-(dicyanomethylene)-2-t-butyl-6-(1 1 7 7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB)
Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG
《能源前沿(英文)》 2020年 第14卷 第1期 页码 127-138 doi: 10.1007/s11708-020-0661-8
关键词: laminar flow hydraulic entrance length super hydrophobic surface slip length hydraulic diameter
Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom
《环境科学与工程前沿(英文)》 2022年 第16卷 第10期 doi: 10.1007/s11783-022-1564-1
● A new model for bloom control in open land scape water was constructed.
关键词: Reclaimed water landscape Algal bloom Nitrogen and phosphorus Hydraulic retention time Threshold Control model
Zebing Wu, Wenyi Yuan, Jinhui Li, Xiaoyan Wang, Lili Liu, Jingwei Wang
《环境科学与工程前沿(英文)》 2017年 第11卷 第5期 doi: 10.1007/s11783-017-0995-6
关键词: Waste PCBs Precious metals Hydrometallurgy Recycling Leaching Recovery
Jin-yi LIU,Jing-quan TAN,En-rong MAO,Zheng-he SONG,Zhong-xiang ZHU
《信息与电子工程前沿(英文)》 2016年 第17卷 第5期 页码 458-464 doi: 10.1631/FITEE.1500172
关键词: Automatic steering system Hydraulic circuit Proportional directional valve Proportional-integral-derivative (PID) control
Hydromechanical model for hydraulic fractures using XFEM
Bo HE
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 240-249 doi: 10.1007/s11709-018-0490-6
Review of fluid and control technology of hydraulic wind turbines
Maolin CAI, Yixuan WANG, Zongxia JIAO, Yan SHI
《机械工程前沿(英文)》 2017年 第12卷 第3期 页码 312-320 doi: 10.1007/s11465-017-0433-2
This study examines the development of the fluid and control technology of hydraulic wind turbines. The current state of hydraulic wind turbines as a new technology is described, and its basic fluid model and typical control method are expounded by comparing various study results. Finally, the advantages of hydraulic wind turbines are enumerated. Hydraulic wind turbines are expected to become the main development direction of wind turbines.
关键词: wind turbine hydraulic system fluid model control technology
Zilian QU,Yonggang MENG,Qian ZHAO
《机械工程前沿(英文)》 2015年 第10卷 第1期 页码 1-6 doi: 10.1007/s11465-015-0325-2
This paper proposes a new eddy current method, named equivalent unit method (EUM), for the thickness measurement of the top copper film of multilayer interconnects in the chemical mechanical polishing (CMP) process, which is an important step in the integrated circuit (IC) manufacturing. The influence of the underneath circuit layers on the eddy current is modeled and treated as an equivalent film thickness. By subtracting this equivalent film component, the accuracy of the thickness measurement of the top copper layer with an eddy current sensor is improved and the absolute error is 3 nm for sampler measurement.
关键词: CMP eddy current multilayer wafer Cu interconnects equivalent unit
标题 作者 时间 类型 操作
Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals
期刊论文
Non-toxic, high selectivity process for the extraction of precious metals from waste printed circuit
期刊论文
Equivalent circuit and characteristic simulation of a brushless electrically excited synchronous wind
Hao WANG, Fengge ZHANG, Tao GUAN, Siyang YU
期刊论文
Copper recovery from waste printed circuit boards concentrated metal scraps by electrolysis
Xiaonan Liu, Qiuxia Tan, Yungui Li, Zhonghui Xu, Mengjun Chen
期刊论文
Copper fractal growth during recycling from waste printed circuit boards by slurry electrolysis
期刊论文
Enhancement of open circuit voltage in organic solar cells by doping a fluorescent red dye
Qing LI, Junsheng YU, Yue ZANG, Nana WANG, Yadong JIANG
期刊论文
Effects of slip length and hydraulic diameter on hydraulic entrance length of microchannels with superhydrophobic
Wenchi GONG, Jun SHEN, Wei DAI, Zeng DENG, Xueqiang DONG, Maoqiong GONG
期刊论文
Modelling the thresholds of nitrogen/phosphorus concentration and hydraulic retention time for bloom
期刊论文
A critical review on the recycling of copper and precious metals from waste printed circuit boards using
Zebing Wu, Wenyi Yuan, Jinhui Li, Xiaoyan Wang, Lili Liu, Jingwei Wang
期刊论文
Proportional directional valve based automatic steering system for tractors
Jin-yi LIU,Jing-quan TAN,En-rong MAO,Zheng-he SONG,Zhong-xiang ZHU
期刊论文
Review of fluid and control technology of hydraulic wind turbines
Maolin CAI, Yixuan WANG, Zongxia JIAO, Yan SHI
期刊论文