检索范围:
排序: 展示方式:
Hygroscopicity of ambient submicron particles in urban Hangzhou, China
Jiachen ZHANG, Lin WANG, Jianmin CHEN, Shengmao FENG, Jiandong SHEN, Li JIAO
《环境科学与工程前沿(英文)》 2011年 第5卷 第3期 页码 342-347 doi: 10.1007/s11783-011-0358-7
关键词: hygroscopicity hygroscopic tandem differential mobility analyzer (H-TDMA) submicron ambient particles Hangzhou
AHMADI,Sayyid H. Hashemi KACHAPI
《机械工程前沿(英文)》 2014年 第9卷 第1期 页码 58-70 doi: 10.1007/s11465-014-0289-7
In the current paper, a simplified model of Tower Cranes has been presented in order to investigate and analyze the nonlinear differential equation governing on the presented system in three different cases by Algebraic Method (AGM). Comparisons have been made between AGM and Numerical Solution, and these results have been indicated that this approach is very efficient and easy so it can be applied for other nonlinear equations. It is citable that there are some valuable advantages in this way of solving differential equations and also the answer of various sets of complicated differential equations can be achieved in this manner which in the other methods, so far, they have not had acceptable solutions. The simplification of the solution procedure in Algebraic Method and its application for solving a wide variety of differential equations not only in Vibrations but also in different fields of study such as fluid mechanics, chemical engineering, etc. make AGM be a powerful and useful role model for researchers in order to solve complicated nonlinear differential equations.
关键词: Algebraic Method (AGM) tower crane oscillating system angular frequency
Alluvial channel hydrodynamics around tandem piers with downward seepage
Rutuja CHAVAN, Wenxin HUAI, Bimlesh KUMAR
《结构与土木工程前沿(英文)》 2020年 第14卷 第6期 页码 1445-1461 doi: 10.1007/s11709-020-0648-x
关键词: scour seepage Strouhal number tandem arrangement turbulent characteristics
Yilan Cui, Xing Xie, Yi Liu
《环境科学与工程前沿(英文)》 2018年 第12卷 第5期 doi: 10.1007/s11783-018-1068-1
Check-in and survey data are explored to identify personal activity-specific places. Ways for detecting and moderating sample bias of Weibo check-in data is proposed. A graphic representation of urban activity intensity in Beijing, China is presented. The potential application of Weibo check-in data for urban analysis is introduced.
关键词: Social media Human mobility Population bias Sample reconstruction Data integration
Design of tandem genes cluster for isoflavone engineering
Xunli XIA PhD , Guangxiao YANG PhD , Guangyuan HE PhD ,
《医学前沿(英文)》 2009年 第3卷 第3期 页码 292-296 doi: 10.1007/s11684-009-0057-y
关键词: isoflavones engineering secondary metabolism tandem genes cluster
《环境科学与工程前沿(英文)》 2022年 第16卷 第5期 doi: 10.1007/s11783-022-1542-7
● We evaluated the accuracy of iPhone data in capturing time-activity patterns.
关键词: Air pollution exposure Human mobility iPhone Significant Location Smartphone data
HE Maogang, ZHANG Ying, SONG Xinzhou, ZHANG Jiantao
《能源前沿(英文)》 2008年 第2卷 第1期 页码 36-42 doi: 10.1007/s11708-008-0013-6
Tuned reactive power dispatch through modified differential evolution technique
S. BISWAS (RAHA), N. CHAKRABORTY
《能源前沿(英文)》 2012年 第6卷 第2期 页码 138-147 doi: 10.1007/s11708-012-0188-8
关键词: reactive power dispatch (RPD) modified differential evolution (MDE) differential evolution algorithm with localizations around the best vector (DELB)
A visual graphic approach for mobility analysis of parallel mechanisms
Xu PEI, Jingjun YU
《机械工程前沿(英文)》 2011年 第6卷 第1期 页码 92-95 doi: 10.1007/s11465-011-0213-3
赵阿群
《中国工程科学》 2004年 第6卷 第8期 页码 50-56
针对微观移动协议现有切换机制的缺点,提出了主动切换机制,利用移动预测技术,在切换发生前预测移动主机将要切换的下一蜂窝以及切换的时刻,为移动主机预先建立新路径;为了保证主动切换机制的实现,提出了一个适用于主动切换机制并易于实现的移动预测算法;同时还提出了主动切换过程中分组丢失和重复避免方法;通过理论分析和系统仿真的方法对主动切换机制进行了性能评价,结果表明主动切换机制以较小的代价获得了可观的性能改善。
WEI Yimei,ZHANG Yuan,XU Jian,GUO Changsheng,LI Lei,FAN Wenhong
《环境科学与工程前沿(英文)》 2014年 第8卷 第3期 页码 357-371 doi: 10.1007/s11783-013-0580-6
关键词: antibiotics liquid chromatography–tandem mass spectrometry (LC-MS/MS) water sediment fish muscle
Fugui XIE,Xin-Jun LIU
《机械工程前沿(英文)》 2016年 第11卷 第2期 页码 135-143 doi: 10.1007/s11465-016-0389-7
This study introduces a high-speed parallel robot with Schönflies motion. This robot exhibits a promising prospect in realizing high-speed pick-and-place manipulation for packaging production lines. The robot has four identical limbs and a single platform. Its compact structure and single-platform concept provides this robot with good dynamic response potential. A line graph method based on Grassmann line geometry is used to investigate the mobility characteristics of the proposed robot. A generalized Blanding rule is also introduced into this procedure to realize mutual conversion between the line graphs for motions and constraints. Subsequently, the inverse kinematics is derived, and the singularity issue of the robot is investigated using both qualitative and quantitative approaches. Input and output transmission singularity indices are defined based on the reciprocal product in screw theory and the virtual coefficient by considering motion/force transmission performance. Thereafter, the singular loci of the proposed robot with specific geometric parameters are derived. The mobility analysis, inverse kinematics modeling, and singularity analysis conducted in this study are helpful in developing the robot.
关键词: parallel robot mobility inverse kinematics singularity transmission performance
Review of MEMS differential scanning calorimetry for biomolecular study
Shifeng YU, Shuyu WANG, Ming LU, Lei ZUO
《机械工程前沿(英文)》 2017年 第12卷 第4期 页码 526-538 doi: 10.1007/s11465-017-0451-0
Differential scanning calorimetry (DSC) is one of the few techniques that allow direct determination of enthalpy values for binding reactions and conformational transitions in biomolecules. It provides the thermodynamics information of the biomolecules which consists of Gibbs free energy, enthalpy and entropy in a straightforward manner that enables deep understanding of the structure function relationship in biomolecules such as the folding/unfolding of protein and DNA, and ligand bindings. This review provides an up to date overview of the applications of DSC in biomolecular study such as the bovine serum albumin denaturation study, the relationship between the melting point of lysozyme and the scanning rate. We also introduce the recent advances of the development of micro-electro-mechanic-system (MEMS) based DSCs.
关键词: differential scanning calorimetry biomolecule MEMS thermodynamic
Erratum to: On the potential of iPhone significant location data to characterize individual mobility
《环境科学与工程前沿(英文)》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1556-1
PM-support interfacial effect and oxygen mobility in Pt, Pd or Rh-loaded (Ce,Zr,La)O catalysts
《环境科学与工程前沿(英文)》 2021年 第15卷 第4期 doi: 10.1007/s11783-020-1369-z
• Pt/CZL exhibits the optimum catalytic performance for HC and NOx elimination.
关键词: Precious metal-loaded (Ce Zr La)O2 catalysts Oxygen mobility Catalytic performance
标题 作者 时间 类型 操作
Hygroscopicity of ambient submicron particles in urban Hangzhou, China
Jiachen ZHANG, Lin WANG, Jianmin CHEN, Shengmao FENG, Jiandong SHEN, Li JIAO
期刊论文
Analyzing the nonlinear vibrational wave differential equation for the simplified model of Tower Cranes
AHMADI,Sayyid H. Hashemi KACHAPI
期刊论文
Alluvial channel hydrodynamics around tandem piers with downward seepage
Rutuja CHAVAN, Wenxin HUAI, Bimlesh KUMAR
期刊论文
Social media and mobility landscape: Uncovering spatial patterns of urban human mobility with multi source
Yilan Cui, Xing Xie, Yi Liu
期刊论文
Design of tandem genes cluster for isoflavone engineering
Xunli XIA PhD , Guangxiao YANG PhD , Guangyuan HE PhD ,
期刊论文
On the potential of iPhone significant location data to characterize individual mobility for air pollution
期刊论文
Available energy analysis of new tandem double-capillary tube refrigeration system for refrigerator-freezers
HE Maogang, ZHANG Ying, SONG Xinzhou, ZHANG Jiantao
期刊论文
Tuned reactive power dispatch through modified differential evolution technique
S. BISWAS (RAHA), N. CHAKRABORTY
期刊论文
quantification of several classes of antibiotics in water, sediments, and fish muscles by liquid chromatography–tandem
WEI Yimei,ZHANG Yuan,XU Jian,GUO Changsheng,LI Lei,FAN Wenhong
期刊论文
Analysis of the kinematic characteristics of a high-speed parallel robot with Schönflies motion: Mobility
Fugui XIE,Xin-Jun LIU
期刊论文
Review of MEMS differential scanning calorimetry for biomolecular study
Shifeng YU, Shuyu WANG, Ming LU, Lei ZUO
期刊论文
Erratum to: On the potential of iPhone significant location data to characterize individual mobility
期刊论文