Results 71 to 80 of about 65,019 (299)

Analysis of Cattaneo-Christov heat and mass fluxes in the squeezed flow embedded in porous medium with variable mass diffusivity

Results in Physics, 2017
This research article investigates the squeezing flow of Newtonian fluid with variable viscosity over a stretchable sheet inserted in Darcy porous medium. Cattaneo-Christov double diffusion models are implemented to scrutinize the characteristics of heat
M. Farooq, S. Ahmad, M. Javed, Aisha Anjum   +3 more
doaj   +1 more source

Leak-rate of seals: comparison of theory with experiment

, 2009
Seals are extremely useful devices to prevent fluid leakage. We present experimental results for the leak-rate of rubber seals, and compare the results to a novel theory, which is based on percolation theory and a recently developed contact mechanics ...
, B. Lorenz, B. N. J. Persson, Campana C., Flitney R., Lorenz B., Mofidi M., Persson B. N. J., Persson B. N. J., Persson B. N. J., Stauffer D., Wu Z., Yang C.   +12 more
core   +1 more source

Graphene‐Based Wearable Textile Triboelectric Nanogenerators and Biomechanical Sensors

Advanced Materials Technologies, EarlyView.
This study presents a wearable textile‐based triboelectric nanogenerator (T‐TENG) using sprayed graphene enhanced with a PVA adhesion layer. The graphene‐based electrode demonstrates high electrical conductivity and robustness to multiple bends. The fabricated T‐TENG provides stable and efficient output, with strong responsiveness to biomotion.
Hongyang Dang, Benji Fenech‐Salerno, Antonio Alessio Leonardi, Federico La Barbera, Felice Torrisi   +4 more
wiley   +1 more source

Dynamics of droplet formation in rotary flow focusing

Flow
Rotary flow focusing (RFF) is distinguished from conventional microfluidic platforms through its capacity to accommodate wide viscosity ranges in both continuous and dispersed phases during droplet formation.
Yihao Yang, Jijie Fu, Kai Mu, Shiyu Wang, Pingan Zhu, Ting Si   +5 more
doaj   +1 more source

A non-squeezing theorem for convex symplectic images of the Hilbert ball

, 2014
We prove that the non-squeezing theorem of Gromov holds for symplectomorphisms on an infinite-dimensional symplectic Hilbert space, under the assumption that the image of the ball is convex.
Abbondandolo, Alberto, Majer, Pietro
core   +1 more source

Quantum Groups, Coherent States, Squeezing and Lattice Quantum Mechanics [PDF]

, 1993
By resorting to the Fock--Bargmann representation, we incorporate the quantum Weyl--Heisenberg ($q$-WH) algebra into the theory of entire analytic functions. The main tool is the realization of the $q$--WH algebra in terms of finite difference operators.
Celeghini, De Martino, S., De Siena, S., Rasetti, M., Vitiello, G.   +4 more
core   +3 more sources

Molecular Appendix Adjusted Architectural Propagations of Red‐Light Controlled Macroscopic Photoactuating Performances

Advanced Robotics Research, EarlyView.
Amphiphilic chloroazobenzenes, bearing different amino acids as end groups alanine, phenylalanine, and valine, exhibit excellent photoisomerizations. Varying structures of three amino acid groups participate in supramolecular formations and therefore photoinduced morphological transformations via adjusting intermolecular interactions. These interaction
Shuangshuang Meng, Ming‐Hin Chau, Takashi Kajitani, Franco King‐Chi Leung   +3 more
wiley   +1 more source

A comparison of the adomian and homotopy perturbation methods in solving the problem of squeezing flow between two circular plates

Mathematical Modelling and Analysis, 2010
The objective of this paper is to compare two methods employed for solving nonlinear problems, namely the Adomian Decomposition Method (ADM) and the Homotopy Perturbation Method (HPM).
Abdul M. Siddiqui, Tahira Haroon, Saira Bhatti, Ali R. Ansari   +3 more
doaj   +1 more source

Interfacial separation between elastic solids with randomly rough surfaces: comparison of experiment with theory

, 2008
We study the average separation between an elastic solid and a hard solid with a nominal flat but randomly rough surface, as a function of the squeezing pressure.
B Lorenz, B N J Persson, Bowden F P, Campana C, Gäbel G Kröger M, Havinga J S de Maij, Israelachvili J N, Johnson K L, Persson B N J, Persson B N J, Persson B N J, Persson B N J, Scheibert J, Yang C   +13 more
core   +1 more source

Landauer's erasure principle in a squeezed thermal memory [PDF]

, 2019
Landauer's erasure principle states that the irreversible erasure of a one-bit memory, embedded in a thermal environment, is accompanied with a work input of at least $k_{\text{B}}T\ln2$.
Klaers, Jan
core   +4 more sources