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《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 930-938 doi: 10.1007/s11705-021-2130-2
关键词: Ammonia electro-oxidation reaction electrocatalyst supports platinum nitrogen doped graphene tungsten carbide
Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL
《机械工程前沿(英文)》 2012年 第7卷 第3期 页码 288-299 doi: 10.1007/s11465-012-0333-4
Wire electrical discharge machining (WEDM) is a well known process for generating intricate and complex geometries in hard metal alloys and metal matrix composites with high precision. In present work, intricate machining of WC-5.3%Co composite on WEDM has been reported. Taguchi’s design of experiment has been utilised to investigate the process parameters for four machining characteristics namely material removal rate, surface roughness, angular error and radial overcut. In order to optimize the four machining characteristics simultaneously, grey relational analysis (GRA) coupled with entropy measurement method has been employed. Through GRA, grey relational grade has been computed as a performance index for predicting the optimal parameters setting for multi machining characteristics. Using Analysis of Variance (ANOVA) on grey relational grade, significant parameters affecting the multi-machining characteristics has been determined. Confirmatory results prove the potential of present approach.
关键词: tungsten carbide composite wire electrical discharge machining (WEDM) Taguchi method grey relational analysis (GRA) entropy measurement method
Design of ultrasonic elliptical vibration cutting system for tungsten heavy alloy
《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0715-1
关键词: tungsten heavy alloy ultrasonic elliptical vibration cutting Timoshenko’s theory resonant mode of bending finite element method
Silicon carbide waste as a source of mixture materials for cement mortar
Zhengwu Jiang, Qiang Ren, Haoxin Li, Qing Chen
《环境科学与工程前沿(英文)》 2017年 第11卷 第5期 doi: 10.1007/s11783-017-0974-y
关键词: Silicon carbide waste Cement mortar Fluidity Strength Shrinkage
Synthesis, characterization and hydrotreating performance of supported tungsten phosphide catalysts
SUN Guida, LI Cuiqing, ZHOU Zhijun, LI Fengyan
《化学科学与工程前沿(英文)》 2008年 第2卷 第2期 页码 155-164 doi: 10.1007/s11705-008-0038-8
关键词: tungsten phosphide differential thermal catalyst surface industrial NiW/-AlO general
Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature
Dejun SHI, Ke QIAO, Zifeng YAN
《化学科学与工程前沿(英文)》 2011年 第5卷 第3期 页码 372-375 doi: 10.1007/s11705-010-0570-1
Satoshi KANECO, Hiroaki KITANAGA, Hideyuki KATSUMATA, Tohru SUZUKI
《化学科学与工程前沿(英文)》 2012年 第6卷 第4期 页码 432-435 doi: 10.1007/s11705-012-1219-z
关键词: preconcentration adsorption onto niobium wire electrothermal atomization atomic absorption spectrometry tungsten tube atomizer trace elements
李洪桂,李运姣,孙培梅,刘茂盛
《中国工程科学》 2000年 第2卷 第3期 页码 59-61
从理论上较全面地研究了钨矿物原料在NaOH分解过程中直接用白钨矿及其分解产物Ca(OH)2作为抑制剂,抑制磷、砷、硅等杂质浸出的可能性及生成物的形态。进而通过实验证明在有白钨矿存在的条件下,分解所得的粗Na2WO4溶液中砷、硅的含量均比经典法低一个数量级,接近经典法净化以后的水平。
Gold modified microelectrode for direct tetracycline detection
Hongtao WANG, Huimin ZHAO, Xie QUAN
《环境科学与工程前沿(英文)》 2012年 第6卷 第3期 页码 313-319 doi: 10.1007/s11783-011-0323-5
张宝,丁淳彤,刘宝华,陈雪莲
《中国工程科学》 2003年 第5卷 第3期 页码 44-50
利用飞轮式Hopkinson拉杆实验技术对钨质量分数为93% 的钨合金在-50~100℃温度范围、应变率ε=102~103s-1区间的动态拉伸性态进行了测试,提供了相应的σ-ε曲线和最大拉伸失效应变,并以此为依据建立了该合金动态拉伸行为的本构关系,提出了该合金受动载发生塑性失稳以致发生拉断的判据。利用断口分形分析理论,对试件拉伸断口微观特征所作的分析和对宏观力学性态实验所作的结论给予了有力的支持。
Technological development and engineering applications of novel steel-concrete composite structures
Jianguo NIE, Jiaji WANG, Shuangke GOU, Yaoyu ZHU, Jiansheng FAN
《结构与土木工程前沿(英文)》 2019年 第13卷 第1期 页码 1-14 doi: 10.1007/s11709-019-0514-x
In view of China’s development trend of green building and building industrialization, based on the emerging requirements of the structural engineering community, the development and proposition of novel resource-saving high-performance steel-concrete composite structural systems with adequate safety and durability has become a kernel development trend in structural engineering. This paper provides a state of the art review of China’s cutting-edge research and technologies in steel-concrete composite structures in recent years, including the building engineering, the bridge engineering and the special engineering. This paper summarizes the technical principles and applications of the long-span bi-directional composite structures, the long-span composite transfer structures, the comprehensive crack control technique based on uplift-restricted and slip-permitted (URSP) connectors, the steel plate concrete composite (SPCC) strengthen technique, and the innovative composite joints. By improving and revising traditional structure types, the comprehensive superiority of steel-concrete composite structures is well elicited. The research results also indicate that the high-performance steel-concrete composite structures have a promising popularizing prospect in the future.
关键词: high-performance composite structure bi-directional composite composite transfer uplift-restricted and slip-permitted connectors steel plate concrete composite strengthen
CuO/zeolite catalyzed oxidation of gaseous toluene under microwave heating
Longli BO, Jianbo LIAO, Yucai ZHANG, Xiaohui WANG, Quan YANG
《环境科学与工程前沿(英文)》 2013年 第7卷 第3期 页码 395-402 doi: 10.1007/s11783-012-0417-8
关键词: microwave catalytic oxidation CuO/zeolite catalyst silicon carbide (SiC) toluene
《化学科学与工程前沿(英文)》 2023年 第17卷 第5期 页码 581-593 doi: 10.1007/s11705-022-2235-2
关键词: tungsten vanadium selective separation reagent mineralization microbubble floating-extraction
Deep eutectic solvent inclusions for high- composite dielectric elastomers
《化学科学与工程前沿(英文)》 2022年 第16卷 第6期 页码 996-1002 doi: 10.1007/s11705-022-2138-2
关键词: composite materials deep eutectic solvent dielectric elastomer high dielectric constant
标题 作者 时间 类型 操作
Platinum on nitrogen doped graphene and tungsten carbide supports for ammonia electro-oxidation reaction
期刊论文
Optimization of multi machining characteristics in WEDM of WC-5.3%Co composite using integrated approach
Kamal JANGRA, Sandeep GROVER, Aman AGGARWAL
期刊论文
Silicon carbide waste as a source of mixture materials for cement mortar
Zhengwu Jiang, Qiang Ren, Haoxin Li, Qing Chen
期刊论文
Synthesis, characterization and hydrotreating performance of supported tungsten phosphide catalysts
SUN Guida, LI Cuiqing, ZHOU Zhijun, LI Fengyan
期刊论文
Effect of potassium carbonate on catalytic synthesis of calcium carbide at moderate temperature
Dejun SHI, Ke QIAO, Zifeng YAN
期刊论文
adsorption onto a niobium wire for electrothermal atomization atomic absorption spectrometry with a tungsten
Satoshi KANECO, Hiroaki KITANAGA, Hideyuki KATSUMATA, Tohru SUZUKI
期刊论文
Gold modified microelectrode for direct tetracycline detection
Hongtao WANG, Huimin ZHAO, Xie QUAN
期刊论文
Technological development and engineering applications of novel steel-concrete composite structures
Jianguo NIE, Jiaji WANG, Shuangke GOU, Yaoyu ZHU, Jiansheng FAN
期刊论文
CuO/zeolite catalyzed oxidation of gaseous toluene under microwave heating
Longli BO, Jianbo LIAO, Yucai ZHANG, Xiaohui WANG, Quan YANG
期刊论文
Highly efficient and selective removal of vanadium from tungstate solutions by microbubble floating-extraction
期刊论文