检索范围:
排序: 展示方式:
Dongqiang LEI, Yucong REN, Zhifeng WANG
《能源前沿(英文)》 2022年 第16卷 第6期 页码 1048-1059 doi: 10.1007/s11708-020-0670-7
关键词: parabolic trough receiver vacuum annulus rarefied gas DSMC (direct simulation Monte Carlo) heat loss
Lateral displacement of soft ground under vacuum pressure and surcharge load
Chin-Yee ONG, Jin-Chun CHAI
《结构与土木工程前沿(英文)》 2011年 第5卷 第2期 页码 239-248 doi: 10.1007/s11709-011-0110-1
关键词: vacuum consolidation lateral displacement PVD finite element analysis surcharge load
《化学科学与工程前沿(英文)》 2023年 第17卷 第9期 页码 1162-1182 doi: 10.1007/s11705-022-2276-6
关键词: lycopodium hydrophobicity vacuum membrane distillation desalination
Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing
Chenglong ZHOU,Guojin ZHU,Yongxiang XU,Jifei YU,Xiaoliang ZHANG,Hongzhi SHENG
《能源前沿(英文)》 2015年 第9卷 第2期 页码 142-147 doi: 10.1007/s11708-015-0357-7
关键词: vacuum insulated tubing cyclic steam stimulation insulation material thermal conductivity foam-glass hydrogen permeation
《环境科学与工程前沿(英文)》 2022年 第16卷 第5期 doi: 10.1007/s11783-021-1489-0
• UV/VUV/I– induces substantial H2O2 and IO3– formation, but UV/I– does not.
关键词: Vacuum ultraviolet Hydrogen peroxide Iodate Hydroxyl radical Redox transition
姜滨,孙丽萍,曹军,周正
《中国工程科学》 2014年 第16卷 第4期 页码 17-20
高频真空木材干燥是一种干燥速度快、能源消耗低、环境污染小的新型联合干燥技术。在木材高频真空联合干燥过程的理论分析基础上,针对神经网络方法建立的木材干燥模型,设计了木材干燥模糊控制器和模糊神经网络控制器。对模糊控制和模糊神经网络两种控制方法进行了仿真实验,结果表明模糊神经网络方法控制效果更好,如温度上升快,控制精度高,稳定性好。模糊神经网络控制方法对实现木材干燥过程的全自动控制具有重要研究意义。
Enhancement of distillate output of double basin solar still with vacuum tubes
Hitesh N PANCHAL, P K SHAH
《能源前沿(英文)》 2014年 第8卷 第1期 页码 101-109 doi: 10.1007/s11708-014-0299-5
关键词: double basin solar still calcium stones pebbles granite gravel distillate output
Wenpo REN, Honggang CHEN, Chaohe YANG, Honghong SHAN,
《化学科学与工程前沿(英文)》 2010年 第4卷 第3期 页码 250-256 doi: 10.1007/s11705-009-0281-7
关键词: dynamic simulation molecular dynamic behavior molecule Adsorption Chromatography
冯仲伟,方兴,李红梅,程爱君,潘永杰
《中国工程科学》 2018年 第20卷 第6期 页码 105-111 doi: 10.15302/J-SSCAE-2018.06.017
轮轨式是目前轨道交通技术体系的主流,但由于空气阻力、轮轨黏着、运行噪声等问题的限制,在现有的技术水平下,难以经济地实现运营速度大幅度提高。为满足更高经济运行速度的需求,在利用磁悬浮技术减少轮轨摩擦、振动的基础上,构建低真空运行环境以减小空气阻力和噪声是未来更高速度轨道交通技术发展的重要方向。本文阐述了发展低真空管道高速磁悬浮系统的意义,研究了其技术特点、发展现状,分析了低真空管道高速磁悬浮系统的科学问题和关键技术,并提出了在国家层面立项研究、建设试验线和国家级实验室的政策建议。
Haifa RAJHI,Daniel PUYOL,Mirna C. MARTÍNEZ,Emiliano E. DÍAZ,José L. SANZ
《环境科学与工程前沿(英文)》 2016年 第10卷 第3期 页码 513-521 doi: 10.1007/s11783-015-0777-y
Novel technologies for the lost foam casting process
Wenming JIANG, Zitian FAN
《机械工程前沿(英文)》 2018年 第13卷 第1期 页码 37-47 doi: 10.1007/s11465-018-0473-2
Lost foam casting (LFC) is a green precision casting process categorized as a near net forming technology. Yet, despite its popularity, it still suffers from some technological problems, such as poor filling ability of the castings, coarse and non-dense microstructure, low mechanical properties for the Al and Mg LFC processes, and defective carburization for the low carbon steel LFC process. These drawbacks restrict the development and widespread application of the LFC process. To solve these problems, the present study developed several novel LFC technologies, namely, LFC technologies under vacuum and low pressure, vibration solidification, and pressure solidification conditions; expendable shell casting techno- logy; and preparation technology of bimetallic castings based on the LFC process. The results showed that the LFC under vacuum and low pressure evidently improved the filling ability and solved the oxidization problem of the alloys, which is suitable for producing complex and thin-wall castings. The vibration and pressure solidifications increased the compactness of the castings and refined the microstructure, significantly improving the mechanical properties of the castings. The expendable shell casting technology could solve the pore, carburization, and inclusion defects of the traditional LFC method, obtaining castings with acceptable surface quality. Moreover, the Al/Mg and Al/Al bimetallic castings with acceptable metallurgical bonding were successfully fabricated using the LFC process. These proposed novel LFC technologies can solve the current technological issues and promote the technological progress of the LFC process.
关键词: LFC under vacuum and low pressure vibration solidification pressure solidification expendable shell casting bimetallic castings
王振占,张升伟,李靖,李芸,吴琼
《中国工程科学》 2013年 第15卷 第10期 页码 33-46
本文论述了风云三号卫星B星微波湿度计(MWHS-3B)发射前热真空定标的原理和方法,建立了各种定标误差的修正算法,获得了MWHS-3B的系统线性度、观测不同目标的灵敏度和最终定标精度等关键技术指标。这些参数已经用于MWHS-3B在轨数据的处理。
Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method
ZHAO Yongzhi, JIANG Maoqiang, CHENG Yi, JIN Yong
《化学科学与工程前沿(英文)》 2008年 第2卷 第1期 页码 5-9 doi: 10.1007/s11705-008-0009-0
关键词: annulus BEM-DEM-CFD simulation gas-solid two-dimensional relationship
Multifunctional antimicrobial chlorhexidine polymers by remote plasma assisted vacuum deposition
Ana Mora-Boza, Francisco J. Aparicio, María Alcaire, Carmen López-Santos, Juan P. Espinós, Daniel Torres-Lagares, Ana Borrás, Angel Barranco
《化学科学与工程前沿(英文)》 2019年 第13卷 第2期 页码 330-339 doi: 10.1007/s11705-019-1803-6
关键词: plasma polymers conformal plasma deposition chlorhexidine bactericide PDMS biocompatibility
Alap Ali ZAHID, Syed Raza ur REHMAN, Anwarul HASAN, S. RUSHD, Mohammad Azizur RAHMAN
《能源前沿(英文)》 2020年 第14卷 第3期 页码 635-643 doi: 10.1007/s11708-018-0582-y
关键词: visualization horizontal annulus hole cleaning multiphase flow image analysis flow regime
标题 作者 时间 类型 操作
Numerical study of conduction and radiation heat losses from vacuum annulus in parabolic trough receivers
Dongqiang LEI, Yucong REN, Zhifeng WANG
期刊论文
Lateral displacement of soft ground under vacuum pressure and surcharge load
Chin-Yee ONG, Jin-Chun CHAI
期刊论文
interconnected nano-channels into polyvinylidene fluoride membranes for desalination applications by vacuum
期刊论文
Novel methods by using non-vacuum insulated tubing to extend the lifetime of the tubing
Chenglong ZHOU,Guojin ZHU,Yongxiang XU,Jifei YU,Xiaoliang ZHANG,Hongzhi SHENG
期刊论文
Toward better understanding vacuum ultraviolet–iodide induced photolysis via hydrogen peroxide formation
期刊论文
Enhancement of distillate output of double basin solar still with vacuum tubes
Hitesh N PANCHAL, P K SHAH
期刊论文
Molecular size characterization of heavy oil fractions in vacuum and solution by molecular dynamic simulation
Wenpo REN, Honggang CHEN, Chaohe YANG, Honghong SHAN,
期刊论文
Vacuum promotes metabolic shifts and increases biogenic hydrogen production in dark fermentation systems
Haifa RAJHI,Daniel PUYOL,Mirna C. MARTÍNEZ,Emiliano E. DÍAZ,José L. SANZ
期刊论文
Numerical simulation of two-dimensional spouted bed with draft plates by discrete element method
ZHAO Yongzhi, JIANG Maoqiang, CHENG Yi, JIN Yong
期刊论文
Multifunctional antimicrobial chlorhexidine polymers by remote plasma assisted vacuum deposition
Ana Mora-Boza, Francisco J. Aparicio, María Alcaire, Carmen López-Santos, Juan P. Espinós, Daniel Torres-Lagares, Ana Borrás, Angel Barranco
期刊论文