Results 51 to 60 of about 4,776 (229)

Microtopography enhances intestinal drug absorption via Piezo1‐mediated tight junction modulation

BMEMat, EarlyView.
Microtopography‐driven enhancement of oral peptide drug delivery by activating Piezo1 channels significantly improves paracellular permeability and bioavailability, offering a novel approach for optimizing macromolecule absorption in pharmaceutical formulations.
Yu Hu, Nan Xu, Xin Li, Xiaowo Kang, Tieyuan Bian, Junsheng Lin, Hao Tang, Yinyin Bao, Lu Zhang, Hongyan Yuan, Mingxi Yao, Xingyu Jiang, Zhi Luo   +12 more
wiley   +1 more source

Structural Parameter Analysis and Optimization of Six-link Double-crank Slider Mechanism of Stamping Machine

Jixie chuandong, 2018
Based on the analysis of the kinematic characteristics of the six-link double-crank slider mechanism of the stamping machine,the structural parameters analysis and optimization design of the six-link double-crank slider mechanism are carried out. Firstly,
Liu Shanmin, Wu Ziyue, Liu Shanzeng
doaj  

Experimental Characterization of A-AFiM, an Adaptable Assistive Device for Finger Motions

Machines, 2022
Robot rehabilitation devices are attracting significant research interest, aiming at developing viable solutions for increasing the patient’s quality of life and enhancing clinician’s therapies.
Jhon Freddy Rodríguez-León, Eduardo Castillo-Castañeda, José Felipe Aguilar-Pereyra, Giuseppe Carbone   +3 more
doaj   +1 more source

Кривошипно-ползунный механизм как объект системы dam [PDF]

, 2010
Рассматривается методика разработки одного из базовых объектов системы динамического анализа механизмов (dam) на примере кривошипно-ползунного механизма штамповочного пресса.For example of crank-slider mechanism of the forming press, the method of ...
Телегин, В. В.
core  

Advanced control of non‐isothermal axial dispersion tubular reactors with recycle‐induced state delay

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract We develop a delay‐aware estimation and control framework for a non‐isothermal axial dispersion tubular reactor modelled as a coupled parabolic‐hyperbolic PDE system with recycle‐induced state delay. The infinite‐dimensional dynamics are preserved without spatial discretization by representing the delay as a transport PDE and adopting a late ...
Behrad Moadeli, Stevan Dubljevic
wiley   +1 more source

Nonlinear Dynamics and Control of Crank-Slider Mechanism with Multiple Clearance Joints [PDF]

Journal of Theoretical and Applied Vibration and Acoustics, 2015
In the current study, behavior of crank-slider mechanism with single and multiple clearance joints are analyzed. Using Lankarani-Nikravesh theory for estimating discontinuous contact forces in clearance joints, relevant systems have been mathematically ...
Morteza Dardel, Sadeq Yaqubi, Hamidreza Mohammadi Daniali, Mohammad Hassan Ghasemi   +3 more
doaj   +1 more source

Dynamic analysis of slider-crank mechanism with clearance fault [PDF]

, 2019
In this paper, the dynamic behavior of the slider-crank mechanism with clearance fault is investigated. The revolute joint with clearance is equivalent to a virtual massless rod, and then the dynamic equation of the crank slider mechanism with clearance ...
Mengmeng Song, Shungen Xiao, Zexiong Zhang   +2 more
core   +1 more source

Topological‐defect‐featured order evolution of liquid crystals

Responsive Materials, EarlyView.
This review provides a comprehensive introduction to the recent advances in the topological‐defect‐featured order evolution of liquid crystal (LCs), including the stimulus‐driven dynamics of defects in nematic LCs, topological defect morphological transformation during phase transitions, advanced strategies for regulating and applications of ...
Jin‐Bing Wu, Daoxing Luo, Zhenghao Guo, Yan‐Qing Lu, Wei Hu   +4 more
wiley   +1 more source

Dynamic analysis of crank slider mechanism considering 3D translational joint clearance based on variable contact area

Mechanics & Industry
This study investigates the influence of joint clearance on the motion accuracy of the slider in the 3D translational pair of the crank slider mechanism.
Wang Yuan, Juan Liu, Fengping Ning, Chao Chai, Lei Zhang, Hui Li   +5 more
doaj   +1 more source

Influence of the contact–impact force model on the dynamic response of multi-body systems [PDF]

, 2006
This work deals with contact–impact force models for both spherical and cylindrical contact surfaces. The incorporation of the friction phenomenon, based on the Coulomb friction law, is also discussed together with an effective computational strategy ...
Ambrósio J., Ambrósio J. A. C., Dietl P., Goldsmith W., Greenwood D. T., Lankarani H. M., Love A. E. H., Nikravesh P. E., Pedersen S., Shampine L., Stolarski T. A., Timoshenko S. P., Zukas J. A.   +12 more
core   +1 more source