Results 21 to 30 of about 125,465 (286)

Negative tension of scroll wave filaments and turbulence in three-dimensional excitable media and application in cardiac dynamics [PDF]

open access: yes, 2012
Scroll waves are vortices that occur in three-dimensional excitable media. Scroll waves have been observed in a variety of systems including cardiac tissue, where they are associated with cardiac arrhythmias.
Alonso, Sergio   +2 more
core   +2 more sources

On the Initial Mass Function of Population III Stars [PDF]

open access: yes, 2000
The collapse and fragmentation of filamentary primordial gas clouds are explored using 1D and 2D hydrodynamical simulations coupled with the nonequilibrium processes of H2 formation.
Alcock C.   +19 more
core   +2 more sources

Differences in cell wall of thin and thick filaments of cyanobacterium Aphanizomenon gracile SAG 31.79 and their implications for different resistance to Daphnia grazing

open access: yesJournal of Limnology, 2016
Recent studies have shown that the filamentous cyanobacterium Aphanizomenon gracile Lemmermann, strain SAG 31.79, consists of two types of filaments that differ in thickness.
Lukasz Wejnerowski   +3 more
doaj   +1 more source

Design Features in Multiple Generations of Electronic Cigarette Atomizers. [PDF]

open access: yes, 2019
The design of electronic cigarette (EC) atomizing units has evolved since their introduction over 10 years ago. The purpose of this study was to evaluate atomizer design in ECs sold between 2011-2017.
Talbot, Prue, Williams, Monique
core   +1 more source

Cycling Cross-Bridges Contribute to Thin Filament Activation in Human Slow-Twitch Fibers

open access: yesFrontiers in Physiology, 2020
It has been shown that not only calcium but also strong binding myosin heads contribute to thin filament activation in isometrically contracting animal fast-twitch and cardiac muscle preparations. This behavior has not been studied in human muscle fibers
Alfredo Jesus López-Dávila   +9 more
doaj   +1 more source

Dynamic star formation in the massive DR21 filament [PDF]

open access: yes, 2010
The formation of massive stars is a highly complex process in which it is not clear whether the star-forming gas is in global gravitational collapse or in an equilibrium state, supported by turbulence.
Adler   +87 more
core   +3 more sources

Interaction between current imbalance and magnetization in LHC cables [PDF]

open access: yes, 2000
The quality of the magnetic field in superconducting accelerator magnets is associated with the properties of the superconducting cable. Current imbalances due to coupling currents ¿I, as large as 100 A, are induced by spatial variations of the field ...
Bottura, L.   +6 more
core   +4 more sources

Solar Energy Driven Membrane Desalination: Experimental Heat Transfer Analysis

open access: yesEnergies, 2022
In the direct contact membrane distillation (DCMD) system, the temperature polarization due to boundary layer formation limits the system performance. This study presents the experimental results and heat transfer analysis of a DCMD module coupled with a
Hosam Faqeha   +6 more
doaj   +1 more source

Growth Rates of HFCVD Diamond Films on Silicon Carbide Substrates for Heat Dissipation Applications

open access: yesShanghai Jiaotong Daxue xuebao, 2023
Diamond has an extremely high thermal conductivity, making it to have a great potential as a heat dissipation material. Based on the hot filament chemical vapor deposition (HFCVD) technique, diamond thick films were deposited on silicon carbide ...
LI Weihan, QIAO Yu, SHU Da, WANG Xinchang
doaj   +1 more source

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