Results 61 to 70 of about 4,808 (230)

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

Optimization Design Method of Offset Slider Crank Mechanism based on the Optimum Transmission Force Performance

Jixie chuandong, 2018
According to the transmission efficiency of offset slider crank mechanism,based on the analysis of offset slider crank mechanism working stroke,the sum of unit invalid force in the working stroke is put forward to evaluate the mechanism transmission ...
Ye Jinhu
doaj  

Engine balance apparatus and accessory drive device [PDF]

, 2000
A balancing mechanism for an engine that has a rotating crankshaft and reciprocating pistons such as those engines used in automobiles, aircrafts, boats, piston-driven compressors, piston-driven slider crank mechanisms, etc.
Brogdon, James William, Gill, David Keith   +1 more
core   +1 more source

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

具有变急回特性的插齿机主传动机构研究

Jixie chuandong, 2014
The analysis of the double crank-slider crank mechanism with quick-return characteristic is carried out,the relationship between the quick-return characteristic K and the installation angleφis deduced,the specific method of installation angle adjustment ...
熊显文, 程伟林
doaj  

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

Fish Scales: A Multifunctional Biomaterial from Nature

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

On the constraints violation in forward dynamics of multibody systems [PDF]

, 2017
It is known that the dynamic equations of motion for constrained mechanical multibody systems are frequently formulated using the Newton-Euler’s approach, which is augmented with the acceleration constraint equations.
A. Arabyan, A. Laulusa, A. Müller, A. Müller, A. Rosen, A.A. Shabana, A.A. Shabana, António P. Souto, B. Ruzzeh, C. Fuhrer, C. Lubich, C.O. Chang, C.R. Rao, D. Baraff, D. Dopico, D. Vlasenko, D.J. Braun, D.S. Bae, D.T. Greenwood, E. Bayo, E. Bayo, E. Bayo, E. Bayo, E. Eich, E. Eich, E. Eich-Soellner, E.H. Moore, E.J. Haug, E.J. Haug, E.T. Routh, F. Aghili, F. Aghili, F. Amirouche, F. González, F. González, F. González, F. Pfeifer, F.-C. Tseng, F.E. Udwadia, F.E. Udwadia, F.E. Udwadia, Filipe Marques, G.P. Ostermeyer, G.P. Ostermeyer, H. Rahnejat, J. Angles, J. Baumgarte, J. Baumgarte, J. Cuadrado, J. Cuadrado, J. McPhee, J. Unda, J. Wittenburg, J. Zhang, J.C. Chiou, J.C. Platt, J.G. Jalón, J.G. Jalón, J.G. Jalón, J.G. Jalón, J.G. Orden, J.G. Orden, J.K. Kim, J.L. Junkins, J.P. Meijaard, K.C. Park, K.C. Park, K.T. Wehage, L. Mariti, M. Carpinelli, M. Haghshenas-Jaryani, M. Hajzman, M. Hong, M. Hong, M. Machado, M. Wojtyra, M.A. Neto, M.B. Cline, N. Orlandea, N.K. Mani, O.A. Bauchau, O.P. Agrawal, P. Eberhard, P. Erberhard, P. Fisette, P. Flores, P. Flores, P. Flores, P. Flores, P. Flores, P. Malczyk, P. Masarati, P.E. Nikravesh, P.E. Nikravesh, P.E. Nikravesh, P.E. Nikravesh, P.E. Nikravesh, P.E. Nikravesh, P.E. Nikravesh, Paulo Flores, Q. Tian, Q. Yu, Q. Yu, R. Barzel, R. Penrose, R. Schwerin, R. Schwerin Von, R. Serban, R.A. Wehage, R.L. Huston, R.L. Huston, R.P. Singh, S. Yoon, S. Yoon, S. Yoon, S.-T. Lin, S.K. Ider, S.S. Kim, S.T. Lin, S.T. Lin, T. Andrzejewski, T. Uchida, T.R. Kane, U. Ascher, U.R. Ascher, W. Blajer, W. Blajer, W. Blajer, W. Blajer, W. Blajer, W. Blajer, W. Guo, W. Schiehlen, W. Schiehlen, Z. Qi, Z. Terze, Z. Terze, Z. Terze, Z. Terze, Z. Weijia   +139 more
core   +1 more source

Robust Control Using a Matrix Converter to Enhance Wind Turbine Systems

Energy Science &Engineering, EarlyView.
This study uses a more efficient and effective solution to improve the operational performance of a wind turbine‐based power system. This system uses a doubly fed induction generator and relies on a matrix converter and fractional‐order proportional–integral controller.
Sihem Ghoudelbourk, Habib Benbouhenni, Adil Yahdou, Zakaria Mohamed Salem Elbarary, Nicu Bizon   +4 more
wiley   +1 more source

基于最优传动性能设计偏置曲柄滑块机构的研究

Jixie chuandong, 2014
Under the design conditions of given time ratio and stroke,according to the bias schematic diagram slider-crank mechanism,the value interval of crank length is obtained by analysis,the structure size design formula of slider-crank mechanism is deduced ...
苏有良
doaj