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H. sinensis mycelium inhibits epithelial-mesenchymal transition by inactivating
Li Lu, Haiyan Zhu, Hailin Wang, Huaping Liang, Yayi Hou, Huan Dou
《医学前沿(英文)》 2021年 第15卷 第2期 页码 313-329 doi: 10.1007/s11684-020-0737-1
关键词: epithelial−mesenchymal transition H. sinensis mycelium midkine pulmonary fibrosis
Nonlinear dynamic analysis for elastic robotic arms
H. KORAYEM, H. N. RAHIMI
《机械工程前沿(英文)》 2011年 第6卷 第2期 页码 219-228 doi: 10.1007/s11465-011-0218-y
The aim of the paper is to analyze the nonlinear dynamics of robotic arms with elastic links and joints. The main contribution of the paper is the comparative assessment of assumed modes and finite element methods as more convenient approaches for computing the nonlinear dynamic of robotic systems. Numerical simulations comprising both methods are carried out and results are discussed. Hence, advantages and disadvantages of each method are illustrated. Then, adding the joint flexibility to the system is dealt with and the obtained model is demonstrated. Finally, a brief description of the optimal motion generation is presented and the simulation is carried out to investigate the role of robot dynamic modeling in the control of robots.
关键词: robotic arms elastic link elastic joint nonlinear dynamics optimal control
Annett SCHROETER, Tanja ENGELBRECHT, Reinhard H. H. NEUBERT
《化学科学与工程前沿(英文)》 2013年 第7卷 第1期 页码 29-36 doi: 10.1007/s11705-013-1302-0
关键词: nano-structure of the stratum corneum ceramide penetration enhancer model membrane neutron diffraction 2H NMR spectroscopy
A new technique for islanding operation of distribution network connected with mini hydro
LAGHARI,H. MOKHLIS,M. KARIMI,A. H. A. BAKAR,Hasmaini MOHAMAD
《信息与电子工程前沿(英文)》 2015年 第16卷 第5期 页码 418-427 doi: 10.1631/FITEE.1400309
关键词: Islanding operation Mini hydro Distributed generation (DG) Islanding detection Load shedding
BHATESHVAR,H. D. MATHUR,H. SIGUERDIDJANE
《能源前沿(英文)》 2015年 第9卷 第1期 页码 7-21 doi: 10.1007/s11708-014-0338-2
关键词: two area power system automatic generation control wind power generating system (WPGS) deregulated environment fuzzy logic controller (FLC)
The psychology of organizational and social sustainability
Wei-Tau LEE, Hao ZHANG, Kenneth H. FUNK II
《工程管理前沿(英文)》 2019年 第6卷 第3期 页码 336-350 doi: 10.1007/s42524-019-0029-0
关键词: work design work dimensions psychological factors good work
An investigation into the vibration of harmonic drive systems
Masoumi, H. Alimohammadi
《机械工程前沿(英文)》 2013年 第8卷 第4期 页码 409-419 doi: 10.1007/s11465-013-0275-5
Harmonic drive systems are precise and specific transmission gear systems which are beneficial in terms of the high transmission ratio and almost zero backlash. These inherent and spectacular properties result in using this mechanism in robotic and space sciences where the precision and lightwieght play an important role. This paper presents a vibration analysis of harmonic drive systems using the shell theory. Equations of vibration for the flexspline and the circular spline of the system are derived and used to find the natural frequencies for both parts and, moreover, vibration response of the system under the operating condition is calculated. Also, obtained vibration equations are utilized to study the effects of different involved parameters such as the geometry of the flexspline and its gear tooth, eccentricity, and unbalancing on the vibrational behavior of the system.
关键词: harmonic drive system strain wave gearing mechanism vibration analysis natural frequencies
H. ZHANG, S. F. WANG, C. H. AN, J. WANG, Q. XU
《机械工程前沿(英文)》 2017年 第12卷 第2期 页码 193-202 doi: 10.1007/s11465-017-0448-8
Large-aperture potassium dihydrogen phosphate (KDP) crystals are widely used in the laser path of inertial confinement fusion (ICF) systems. The most common method of manufacturing half-meter KDP crystals is ultra-precision fly cutting. When processing KDP crystals by ultra-precision fly cutting, the dynamic characteristics of the fly cutting machine and fluctuations in the fly cutting environment are translated into surface errors at different spatial frequency bands. These machining errors should be suppressed effectively to guarantee that KDP crystals meet the full-band machining accuracy specified in the evaluation index. In this study, the anisotropic machinability of KDP crystals and the causes of typical surface errors in ultra-precision fly cutting of the material are investigated. The structures of the fly cutting machine and existing processing parameters are optimized to improve the machined surface quality. The findings are theoretically and practically important in the development of high-energy laser systems in China.
关键词: ultra-precision fly cutting large-aperture KDP crystals spatial frequency processing error
Catalytic activity of manganese oxide supported on alumina in the synthesis of quinoxalines
., H. Kathyayini, N. Nagaraju
《化学科学与工程前沿(英文)》 2013年 第7卷 第4期 页码 415-421 doi: 10.1007/s11705-013-1360-3
关键词: alumina manganese oxide deposited on alumina quinoxaline synthesis
Advancement in materials for energy-saving lighting devices
Tak H. KIM, Wentai WANG, Qin LI
《化学科学与工程前沿(英文)》 2012年 第6卷 第1期 页码 13-26 doi: 10.1007/s11705-011-1168-y
关键词: energy-saving lighting devices solid state lighting devices
H. Watamura, H. Marukawa, I. Hirasawa
《化学科学与工程前沿(英文)》 2013年 第7卷 第1期 页码 55-59 doi: 10.1007/s11705-013-1312-y
Review of solvent based carbon-dioxide capture technologies
MUMFORD,Yue WU,Kathryn H. SMITH,Geoffrey W. STEVENS
《化学科学与工程前沿(英文)》 2015年 第9卷 第2期 页码 125-141 doi: 10.1007/s11705-015-1514-6
关键词: large scale carbon dioxide carbon capture solvent absorption
Managing obsolescence of embedded hardware and software in secure and trusted systems
COLLIER, James H. LAMBERT
《工程管理前沿(英文)》 2020年 第7卷 第2期 页码 172-181 doi: 10.1007/s42524-019-0032-5
关键词: enterprise risk management diminishing manufacturing sources and material shortages scenario-based preferences systems engineering deep uncertainty product life cycle
Ataloglou, Ayman H. Dorrah
《工程(英文)》 2022年 第11卷 第4期 页码 21-26 doi: 10.1016/j.eng.2021.05.011
Preparation of manganese (III) acetylacetonate nanoparticles via an environmentally benign route
Shalaby, H. Abdallah
《化学科学与工程前沿(英文)》 2013年 第7卷 第3期 页码 329-337 doi: 10.1007/s11705-013-1339-0
关键词: green chemistry manganese (III) acetylacetonate reaction conversion Mathematical model
标题 作者 时间 类型 操作
H. sinensis mycelium inhibits epithelial-mesenchymal transition by inactivating
Li Lu, Haiyan Zhu, Hailin Wang, Huaping Liang, Yayi Hou, Huan Dou
期刊论文
Influence of short chain ceramides and lipophilic penetration enhancers on the nano-structure of stratum corneum model membranes studied using neutron diffraction
Annett SCHROETER, Tanja ENGELBRECHT, Reinhard H. H. NEUBERT
期刊论文
A new technique for islanding operation of distribution network connected with mini hydro
LAGHARI,H. MOKHLIS,M. KARIMI,A. H. A. BAKAR,Hasmaini MOHAMAD
期刊论文
Impact of wind power generating system integration on frequency stabilization in multi-area power system with fuzzy logic controller in deregulated environment
BHATESHVAR,H. D. MATHUR,H. SIGUERDIDJANE
期刊论文
The psychology of organizational and social sustainability
Wei-Tau LEE, Hao ZHANG, Kenneth H. FUNK II
期刊论文
Full-band error control and crack-free surface fabrication techniques for ultra-precision fly cutting of large-aperture KDP crystals
H. ZHANG, S. F. WANG, C. H. AN, J. WANG, Q. XU
期刊论文
Catalytic activity of manganese oxide supported on alumina in the synthesis of quinoxalines
., H. Kathyayini, N. Nagaraju
期刊论文
Filtration ability of hollow fiber membrane for production of magnesium ammonium phosphate crystals by reaction crystallization
H. Watamura, H. Marukawa, I. Hirasawa
期刊论文
Review of solvent based carbon-dioxide capture technologies
MUMFORD,Yue WU,Kathryn H. SMITH,Geoffrey W. STEVENS
期刊论文
Managing obsolescence of embedded hardware and software in secure and trusted systems
COLLIER, James H. LAMBERT
期刊论文