Results 61 to 70 of about 158,447 (307)

Chain tension control of scraper conveyor based on sliding mode control

open access: yesGong-kuang zidonghua, 2015
According to nonlinear, stochastic and time-varying characteristics of chain tension control of scraper conveyor in coal mine underground, a chain tension control system of scraper conveyor was proposed which was based on sliding mode control method to ...
GONG Shangfu, YANG Na
doaj   +1 more source

A growing-drop technique for measuring dynamic interfacial tension [PDF]

open access: yes, 1993
A novel, growing-drop technique is described for measuring dynamic interfacial tension due to sorption of surface-active solutes. The proposed method relates the instantaneous pressure and size of expanding liquid drops to interfacial tension and is ...
MacLeod, C. A., Radke, C. J.
core   +1 more source

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Dynamic Uniform Deformation for Electromagnetic Uniaxial Tension

open access: yesMetals, 2019
To compare with quasi-static uniaxial tensioning, researchers designed an electromagnetic uniaxial tension method using a runway coil. However, the requirements to obtain a uniformly deformed sample and the ways the stress changes on the sample using a ...
Xiaohui Cui   +4 more
doaj   +1 more source

Tumour dynamics and necrosis: surface tension and stability

open access: yesMathematical Medicine and Biology, 2001
A model is developed for the motion of cells within a multicell spherical tumour. The model allows either for the intercellular forces to be in compression and cells to be compacted to a fixed number density, or for the cell number density to fall and cells to become isolated from each other.
Landman, K.A., Please, C.P.
openaire   +5 more sources

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Crack initiation characteristics of ring chain of heavy-duty scraper conveyor under time-varying loads

open access: yesAdvances in Mechanical Engineering, 2019
Crack initiation characteristics of ring chain of heavy-duty scraper conveyor under time-varying loads were investigated in this study. The dynamic tension of ring chain of the heavy-duty scraper conveyor was obtained using the time-varying dynamic ...
Dagang Wang   +4 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure   +3 more
wiley   +1 more source

The Hydrodynamic Similarity between Different Power Levels and a Dynamic Analysis of Ocean Current Energy Converter–Platform Systems with a Novel Pulley–Traction Rope Design for Irregular Typhoon Waves and Currents

open access: yesJournal of Marine Science and Engineering
In the future, the power of a commercial ocean current energy convertor will be able to reach the MW class, and its corresponding mooring rope tension will be very good. However, the power of convertors currently being researched is still at the KW class,
Shueei-Muh Lin, Wen-Rong Wang, Hsin Yuan
doaj   +1 more source

Peripheral Nerve Gap Repair Facilitated By a Dynamic Tension Device [PDF]

open access: yes, 2010
End-to-end neurorrhaphy remains the gold standard for transected nerve repair. However, the current dogma is that to be successful, nerve repairs must be tension free. Therefore, nerve gaps are most commonly repaired with grafts. While there is evidence
Michael Sg Bell, David S Mcdonald
core   +1 more source

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