Results 111 to 120 of about 192,306 (299)

Casimir Friction Force and Energy Dissipation for Moving Harmonic Oscillators

, 2010
The Casimir friction problem for a pair of dielectric particles in relative motion is analyzed, utilizing a microscopic model in which we start from statistical mechanics for harmonically oscillating particles at finite temperature moving ...
A.I. Volokitin, A.I. Volokitin, G.V. Dedkov, G.V. Dedkov, G.V. Dedkov, I. Brevik, I. Brevik, J. S. Høye, J.B. Pendry, J.B. Pendry, J.B. Pendry, J.M. Jauch, J.M. Jauch, J.S. Høye, J.S. Høye, J.S. Høye, S.Y. Buhmann, S.Å. Ellingsen, S.Å. Ellingsen, T.G. Philbin   +19 more
core   +2 more sources

High‐Resolution Characterization of Protein‐Conjugated, mRNA‐Loaded Lipid Nanoparticles by Analytical Ultracentrifugation

Advanced Functional Materials, EarlyView.
Lipid nanoparticles containing messenger RNA are characterized by sedimentation velocity analytical ultracentrifugation using UltraScan's new Custom Grid algorithm to provide multi‐dimensional distributions for partial specific volume (particle density), molar mass, sedimentation, diffusion, and hydrodynamic radius.
Sophia Bird, Connor Smith, Nahal Habibi, Samantha Rivera, Saeed Mortezazadeh, Reece Martin, Benjamin M. Geilich, Gilles Besin, Borries Demeler   +8 more
wiley   +1 more source

Ratchet mechanism Patent [PDF]

, 1970
Ratchet mechanism for high speed operation at reduced ...
Dane, D. H.
core   +1 more source

Membrane Wrapping for High Capacity and Rapidly Switchable Adhesives

Advanced Functional Materials, EarlyView.
A membrane‐wrapping mechanism enables high‐capacity, rapidly switchable adhesion by coupling suction, friction, and adhesion. Broadband performance is achieved in dry and underwater conditions, allowing fast, reversible manipulation of objects of diverse sizes and shapes, from delicate eggs and berries to flat, complex, or heavy objects. These outcomes
Yeunhee Kim, Camryn A. Mills, Michael D. Bartlett   +2 more
wiley   +1 more source

Finite-element analysis of contact characteristics and friction modes of the "valve-guide" of the internal combustion engine

Проблеми трибології
Modeling the performance of the "valve-guide" engine pair using modern software is an effective tool both for identifying weak points in the design and for predicting the behavior of the friction unit in operation.
K.E. Holenko, A.A. Vychavka, M.O. Dykha, V.O. Dytyniuk   +3 more
doaj   +1 more source

Predicting Atomic Charges in MOFs by Topological Charge Equilibration

Advanced Functional Materials, EarlyView.
An atomic charge prediction method is presented that is able to accurately reproduce ab‐initio‐derived reference charges for a large number of metal–organic frameworks. Based on a topological charge equilibration scheme, static charges that fulfill overall neutrality are quickly generated.
Babak Farhadi Jahromi, Sumukh Shankar Sharadaprasad, Rochus Schmid   +2 more
wiley   +1 more source

Gimbal bearing design considerations and friction control [PDF]

The design considerations of bearing selection, bearing fits, bearing installation, and thermal control are discussed for a gimbal with a high stiffness, low friction torque requirement.
Kramer, N. R.
core   +1 more source

Нанотрибологічні процеси в парах тертя гальмівних пристроїв (Частина друга) [PDF]

, 2011
У матеріалах статті на рівні нанотрибології розкрито природу утворення струмів у провідникових та напівпровідникових плівках пар тертя гальмівних пристроїв.
Бекіш, І. О., Вольченко, Д. О., Вольченко, М. О., Куриляк, Я. В., Поляков, П. А., Стебелецька, Н. М.   +5 more
core  

Complex heat exchange in brake friction pairs

Acta Scientiarum Polonorum. Architectura
In the article, the following issues are considered: general principles of complex heat transfer in friction pairs of brake devices; radiant heat exchange from the rough surfaces of the metal friction elements of the brakes; the combined action of the fields of thermal conductivity and radiation in the metal friction elements of the brakes. The role of
Ivan Kernytskyy, Dmytro Volchenko, Yuriy Royko, Dmytro Zhuravlev, Bohdan Dolishniy, Iryna Bekish, Vasyl Rys, Ruslan Humeniuk, Yaroslav Sholudko, null Oksana Berezovetska, Olga Szlachetka   +10 more
openaire   +1 more source

Pulse-contact frictional interaction of microprotrusions of friction pairs of brake devices

IOP Conference Series: Materials Science and Engineering, 2019
Abstract The article materials disclose contact-impulse frictional interaction of microprotrusions of friction pairs of strip-block brakes, based on the principles of the gradient theory of electric and thermal fields. The effect of “transistor” was applied by selecting friction pairs of the brake to reduce their energy loading, and as a
N A Volchenko, D A Volchenko, P A Polyakov, P S Krasin, E S Fedotov, A S Evchenko   +5 more
openaire   +1 more source