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A novel six-legged walking machine tool for
Jimu LIU, Yuan TIAN, Feng GAO
《机械工程前沿(英文)》 2020年 第15卷 第3期 页码 351-364 doi: 10.1007/s11465-020-0594-2
关键词: legged robot parallel mechanism mobile machine tool in-situ machining
Polyolefin-nanocomposites with special properties by in-situ polymerization
Walter Kaminsky
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 555-563 doi: 10.1007/s11705-018-1715-x
Exceptionally strong polyolefin nanocomposites are synthesized by in-situ polymerization using soluble metallocene/methylaluminoxane (MAO) as catalysts in a two-step process. First, the soluble metallocene/MAO or other single site catalysts are absorbed on the surface of the nanofillers. Then by addition of ethene or propene, a polyolefin film is formed, covering the nanoparticles, layered silicates, or fibers. The resulting polyethylene and polypropylene nanocomposites are characterized by better physical and chemical properties such as stiffness, gas barrier properties, degradation temperatures, and crystallization rates. They show better mechanical properties than materials produced by mechanical blending. The thickness of the polyolefin can be controlled by the pressure of ethene or propene and by the polymerization time. Carbon fibers and carbon nanotubes are covered with isotactic or syndiotactic polypropylene. Because of the hydrophobic character of the carbon surface, the polymer is drawn on the fiber. This leads to a reinforced combined polymer with special properties. The crystallization temperature is 10 °C higher and therefore the crystallization rate up to 20 times faster than that of pure syndiotactic polypropylene. The form stability increases by 100% if 3 wt-% of carbon nanotubes are incorporated.
关键词: polyolefin nanocomposites metallocenes methylaluminoxane
《化学科学与工程前沿(英文)》 2022年 第16卷 第12期 页码 1807-1817 doi: 10.1007/s11705-022-2243-2
关键词: Ru/C catalyst in-situ H2 reduction and moderate oxidation in-situ reduction non-in-situ reduction hydrogenation of 3 5-dimethylpyridine
In-situ condition monitoring of reinforced concrete structures
Sanjeev Kumar VERMA,Sudhir Singh BHADAURIA,Saleem AKHTAR
《结构与土木工程前沿(英文)》 2016年 第10卷 第4期 页码 420-437 doi: 10.1007/s11709-016-0336-z
关键词: concrete carbonation chloride corrosion monitoring models
Organics Recovery from Waste Activated Sludge In-situ Driving Efficient Nitrogen Removal from Mature
Fangzhai Zhang,Shang Ren,Haoran Liang,Zhaozhi Wang,Ying Yan,Jiahui Wang,Yongzhen Peng,
《工程(英文)》 doi: 10.1016/j.eng.2023.03.005
关键词: Waste activated sludge Bioresource recovery Simultaneous treatment of wastewater and sludge Mature landfill leachate Free nitrous acid
Kun OUYANG, Yu HUANG, Haoyi CHEN, Tao LI, Fahai CAO, Dingye FANG
《化学科学与工程前沿(英文)》 2011年 第5卷 第1期 页码 67-73 doi: 10.1007/s11705-010-0541-6
关键词: glycerol aqueous-phase reforming 1 3-propanediol in-situ reduction
density measurement for plastic injection molding via ultrasonic technology
《机械工程前沿(英文)》 2022年 第17卷 第4期 doi: 10.1007/s11465-022-0714-2
关键词: ultrasonic measurement melt density in-situ measurement injection molding
《机械工程前沿(英文)》 2023年 第18卷 第3期 doi: 10.1007/s11465-023-0756-0
关键词: kinetostatic modeling morphology characterization variable friction continuum robots in-situ maintenance
grown TiN/N-TiO composite for enhanced photocatalytic H evolution activity
《能源前沿(英文)》 2021年 第15卷 第3期 页码 721-731 doi: 10.1007/s11708-021-0766-8
关键词: photocatalytic H2 evolution TiN/N-TiO2 composite plasmonic effect in-situ nitridation
《化学科学与工程前沿(英文)》 2022年 第16卷 第3期 页码 443-460 doi: 10.1007/s11705-021-2079-1
关键词: Stöber method carbon-coated Ni-Co alloy in-situ hydrodeoxygenation methyl palmitate decarbonylation/decarboxylation
基于三维扫描振镜的原位激光加工方法研究 Article
李晓, 刘斌, 梅雪松, 王文君, 王晓东, 李珣
《工程(英文)》 2020年 第6卷 第1期 页码 68-76 doi: 10.1016/j.eng.2019.07.024
本文通过研究三维扫描振镜及工业相机耦合构建的三维原位激光加工系统,提出了一种基于线结构光的工件三维扫描测量方式来获取工件三维模型信息的方法。该测量方法创新地将高度标定法用于三维测量精度的提高中,并成功地保证了后续加工时激光在三维工件上的精确聚焦。为了实现便捷高效的激光三维加工,研究人员开发了相关的原位加工软件,并通过实验案例验证了基于三维扫描振镜的原位激光加工方法与实验装置的可行性及实用性。与传统的线结构光测量方法相比,本研究的优点在于提出的方法不需要光平面标定和配置额外的运动轴来实现三维重建,并体现出了较高便捷性及较低成本优势:通过原位的激光加工方式可以实现测量加工一体化,进而降低时间和劳动成本。
《化学科学与工程前沿(英文)》 2023年 第17卷 第5期 页码 548-556 doi: 10.1007/s11705-022-2252-1
关键词: hydrazine-linked TFPB-DHzDS in-situ growth method open-tubular capillary electrochromatography molecular simulations
《化学科学与工程前沿(英文)》 2023年 第17卷 第2期 页码 139-155 doi: 10.1007/s11705-022-2217-4
关键词: extended Stöber method carbon encapsulated Ni–Sn intermetallic compounds confinement in-situ hydrothermal deoxygenation hydrogenation decarbonylation
Ayaho MIYAMOTO, Risto KIVILUOMA, Akito YABE
《结构与土木工程前沿(英文)》 2019年 第13卷 第3期 页码 569-604 doi: 10.1007/s11709-018-0498-y
关键词: condition assessment short & medium span bridge structural health monitoring(SHM) long-term data collection system maintenance bridge performance information technology loading vehicle(public bus) in-situ loading
标题 作者 时间 类型 操作
Development of an H reduction and moderate oxidation method for 3,5-dimethylpyridine hydrogenation in trickle bed reactor
期刊论文
In-situ condition monitoring of reinforced concrete structures
Sanjeev Kumar VERMA,Sudhir Singh BHADAURIA,Saleem AKHTAR
期刊论文
Organics Recovery from Waste Activated Sludge In-situ Driving Efficient Nitrogen Removal from Mature
Fangzhai Zhang,Shang Ren,Haoran Liang,Zhaozhi Wang,Ying Yan,Jiahui Wang,Yongzhen Peng,
期刊论文
Thermodynamic analysis of liquid phase in situ hydrogenation of glycerol for 1,3-propanediol synthesis
Kun OUYANG, Yu HUANG, Haoyi CHEN, Tao LI, Fahai CAO, Dingye FANG
期刊论文
Comprehensive kinetostatic modeling and morphology characterization of cable-driven continuum robots for aero-engine maintenance
期刊论文
Carbon-coated Ni-Co alloy catalysts: preparation and performance for aqueous phase hydrodeoxygenation of methyl palmitate to hydrocarbons using methanol as the hydrogen donor
期刊论文
Room temperature preparation of hydrazine-linked covalent organic frameworks coated capillaries for separation and determination of polycyclic aromatic hydrocarbons
期刊论文
Efficient hydrothermal deoxygenation of methyl palmitate to diesel-like hydrocarbons on carbon encapsulated Ni–Sn intermetallic compounds with methanol as hydrogen donor
期刊论文