检索范围:
排序: 展示方式:
孙伟锋,高珊,陆生礼,陈军宁
《中国工程科学》 2009年 第11卷 第11期 页码 82-87
根据泊松方程和热扩散方程提出了新型PB-PSOI 器件漂移区的二维表面电场分布模型和温度分布模型,模型计算结果与Medici模拟结果相一致。根据所提出的模型,重点研究了埋氧化层厚度及长度对漂移区表面电场分布和温度分布的影响,最后给出了PB-PSOI 器件的埋氧化层厚度和长度的优化设计方法。
Response surface regression analysis on FeCrBSi particle in-flight properties by plasma spray
Runbo MA,Lihong DONG,Haidou WANG,Shuying CHEN,Zhiguo XING
《机械工程前沿(英文)》 2016年 第11卷 第3期 页码 250-257 doi: 10.1007/s11465-016-0401-2
This work discusses the interactive effects between every two of argon flow rate, voltage, and spray distance on in-flight particles by plasma spray and constructs models that can be used in predicting and analyzing average velocity and temperature. Results of the response surface methodology show that the interactive effects between voltage and spray distance on particle in-flight properties are significant. For a given argon flow rate, particle velocity and temperature response surface are obviously bending, and a saddle point exists. With an increase in spray distance, the interactive effects between voltage and argon flow rate on particle in-flight properties appear gradually and then weaken. With an increase in voltage, the interactive effects between spray distance and argon flow rate on particle in-flight properties change from appearing to strengthening and then to weakening.
关键词: particle velocity particle temperature interactive effects response surface
Grafting of PEG400 onto the surface of LLDPE/SMA film
CHEN Gufeng, ZHANG Yi, XU Jiarui, ZHU Yafei
《化学科学与工程前沿(英文)》 2007年 第1卷 第2期 页码 128-131 doi: 10.1007/s11705-007-0024-6
关键词: hydrophilicity temperature effective immersion reflection accessory
Characteristics and application of road absorbing solar energy
Zhihua ZHOU, Shan HU, Xiaoyan ZHANG, Jian ZUO
《能源前沿(英文)》 2013年 第7卷 第4期 页码 525-534 doi: 10.1007/s11708-013-0278-2
关键词: solar energy road-solar energy system road surface temperature solar absorptivity of road surface solar collector efficiency of system
Subhash ANURAG, Yuebin GUO,
《机械工程前沿(英文)》 2010年 第5卷 第3期 页码 247-255 doi: 10.1007/s11465-010-0097-7
关键词: surface temperature friction residual stress finite element analysis (FEA) dry cutting tool property
李芸,姜景山,王振占,张德海,张晓辉
《中国工程科学》 2013年 第15卷 第7期 页码 106-112
本文利用理论研究的结果,建立了月表物理温度反演模型,结合嫦娥一号微波探测仪(CELMS)数据对全月球物理温度进行了反演。同时分析了物理温度变化对微波辐射的影响及其与表面地形等的关系,为其他月表信息反演提供了依据和物理温度的测量信息。
Thermal analysis of lubricated three-dimensional contact bodies considering interface roughness
《机械工程前沿(英文)》 2022年 第17卷 第2期 doi: 10.1007/s11465-022-0672-8
关键词: thermal elastohydrodynamic lubrication surface roughness effect thermal effect temperature characteristics severe conditions
郭永富
《中国工程科学》 2011年 第13卷 第11期 页码 81-88
利用ANSYS软件建立数学模型,分析不同地压、不同冻结壁厚度、不同冻结壁平均温度、不同开挖段高与冻结壁变形之间的关系。通过研究发现,井帮位移随冻结壁平均温度的降低、冻结壁厚度的增大而减小,随施工段高增大、地层地压值的增大而增大,且地压值的变化对冻结壁的变形影响最为显著。据此提出了深表土冻结壁应按变形条件进行设计,且施工段高是影响冻结壁稳定性的极为重要的参数,在施工中应严格控制。研究提出当冻结壁厚度为10 m左右,平均温度达到-20 ℃时,采取降低冻结壁平均温度的方式比增加冻结壁厚度能更加有效地提高冻结壁的
黄达海,王从峰
《中国工程科学》 2002年 第4卷 第7期 页码 33-39
在分析混凝土表面裂缝特点的基础上,针对受寒潮袭击中的大体积混凝土,提出表面裂缝问题的半无限平面假设。利用混凝土传热的延迟性质,研究了任意降温过程中半无限平面问题无限平面化的条件。采用叠加原理,提出了环境温度任意下降时混凝土表面温度及表层温度计算的新方法。利用400mm×400 mm×220 mm块状试件,构造了混凝土表面开裂问题的半无限平面模型。在室外环境下,对混凝土表面温度与表层温度进行了连续测量,并对该方法进行了验证。试验结果表明,在环境温度单调下降的条件下,对混凝土受寒潮袭击时的半无限平面问题进行无限平面化处理是可行的。
Surface modification of titanium dioxide for electrophoretic particles
PENG Xuhui, LE Yuan, BIAN Shuguang, LI Woyuan, WU Wei, DAI Haitao, CHEN Jianfeng
《化学科学与工程前沿(英文)》 2007年 第1卷 第4期 页码 338-342 doi: 10.1007/s11705-007-0061-1
关键词: inorganic particle temperature tetrachloroethylene transform optimized modifying
Yang WANG, Baoming LI
《农业科学与工程前沿(英文)》 2020年 第7卷 第4期 页码 478-489 doi: 10.15302/J-FASE-2019289
The degree-day method is widely used to determine energy consumption but cannot be directly applied to poultry buildings without improvements in its accuracy. This study was designed to optimize the degree-day calculation and proposes a solar-air degree-day method, which can be used to calculate the cooling and heating degree-days and the annual cooling and heating loads under different climate conditions for poultry buildings. In this paper, the solar-air degree-day method was proposed, which considers the effects of solar radiation with different wall orientations and surface colors. Five Chinese cities, Harbin, Beijing, Chongqing, Kunming and Guangzhou, were selected to represent different climate zones to determine the solar-air degree-days. The heating and cooling energy requirements for different climates were compared by DeST (Designer’s Simulation Toolkit) simulation and the solar-air degree-day method. Approaches to decrease energy consumption were developed. The results showed that the maximum relative error was less than 10%, and the new method was not significantly different from the DeST simulation ( >0.05). The accuracy of calculating energy requirements was improved by the solar-air degree-day method in the different climate zones. Orientation and surface color effects on energy consumption need to be considered, and external walls of different orientations should have different surface colors.
关键词: base temperature energy consumption solar radiation orientation surface color
Cell surface protein engineering for high-performance whole-cell catalysts
Hajime Nakatani,Katsutoshi Hori
《化学科学与工程前沿(英文)》 2017年 第11卷 第1期 页码 46-57 doi: 10.1007/s11705-017-1609-3
关键词: cell surface engineering surface display whole-cell catalysts bioprocess
Emerging challenges to structural integrity technology for high-temperature applications
TU Shantung
《机械工程前沿(英文)》 2007年 第2卷 第4期 页码 375-387 doi: 10.1007/s11465-007-0066-y
关键词: manufacture aviation industry conversion petrochemical temperature
An Exploration of Surface Integrity Remanufacturing for Aeroengine Components
Qiao Xiang,Yong He,Ting-hong Hou
《工程管理前沿(英文)》 2016年 第3卷 第2期 页码 107-114 doi: 10.15302/J-FEM-2016025
关键词: aeroengine component surface integrity remanufacturing surface integrity remanufacturing
Review on mechanism and process of surface polishing using lasers
Arun KRISHNAN, Fengzhou FANG
《机械工程前沿(英文)》 2019年 第14卷 第3期 页码 299-319 doi: 10.1007/s11465-019-0535-0
关键词: laser polishing surface roughness process parameters mechanism
标题 作者 时间 类型 操作
Response surface regression analysis on FeCrBSi particle in-flight properties by plasma spray
Runbo MA,Lihong DONG,Haidou WANG,Shuying CHEN,Zhiguo XING
期刊论文
Grafting of PEG400 onto the surface of LLDPE/SMA film
CHEN Gufeng, ZHANG Yi, XU Jiarui, ZHU Yafei
期刊论文
Characteristics and application of road absorbing solar energy
Zhihua ZHOU, Shan HU, Xiaoyan ZHANG, Jian ZUO
期刊论文
Predictive model to decouple the contributions of friction and plastic deformation to machined surface
Subhash ANURAG, Yuebin GUO,
期刊论文
Thermal analysis of lubricated three-dimensional contact bodies considering interface roughness
期刊论文
Surface modification of titanium dioxide for electrophoretic particles
PENG Xuhui, LE Yuan, BIAN Shuguang, LI Woyuan, WU Wei, DAI Haitao, CHEN Jianfeng
期刊论文
An optimized solar-air degree-day method to evaluate energy demand for poultry buildings in different climate zones
Yang WANG, Baoming LI
期刊论文
Cell surface protein engineering for high-performance whole-cell catalysts
Hajime Nakatani,Katsutoshi Hori
期刊论文
Emerging challenges to structural integrity technology for high-temperature applications
TU Shantung
期刊论文
An Exploration of Surface Integrity Remanufacturing for Aeroengine Components
Qiao Xiang,Yong He,Ting-hong Hou
期刊论文