Results 101 to 110 of about 72,792 (298)

Synthesis and characterization of soluble ester-containing polyimide alignment layers with high voltage holding ratio features and potential applications in TFT-LCDs

open access: yeseXPRESS Polymer Letters, 2019
Novel ester-containing polyimide (PI) resins have been synthesized from an alicyclic dianhydride monomer, 4,4'-dihydroxybiphenyldicyclohexanecarboxylate-3,3',4,4'-tetracarboxylic acid dianhydride (HTABP) and various aromatic diamines.
X. X. Zhi   +8 more
doaj   +1 more source

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

The effects of channel noise upon sub-threshold and graded voltage signals.

open access: yes, 2014
A. The standard deviation of the voltage of the spiking neuron model (stochastic voltage-gated Na+ and K+ channels), a modified model with stochastic voltage-gated Na+ and deterministic voltage-gated K+ channels, a modified model with deterministic ...
Simon Barry Laughlin (513462)   +2 more
core   +1 more source

Design of two low-voltage sample and hold circuits

open access: yes, 2020
In the resent years, there is a trend of reducing the supply voltage of integrated circuits (ICs) due to the decrease in the feature size of complementary metal-oxide-semiconductor (CMOS) process. Reducing the supply voltage is required for reliability issue in advanced CMOS process. Nevertheless, it can also reduce power dissipation.
openaire   +3 more sources

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Failure modes of polymer electrolyte membrane fuel cell membrane-electrode assemblies in air-independent applications

open access: yesCase Studies in Thermal Engineering
Air-independent polymer electrolyte membrane fuel cells (PEMFCs) operate with pure O2 in closed systems, subjecting membrane-electrode assemblies (MEAs) to high O2 activity, prolonged high-voltage idling, and humidity or pressure transients.
Jinhyuk Lim, Junmo Koo, Joon Hyung Shim
doaj   +1 more source

Wheeled Wall Climbing Robot using ATmega 2560 Microcontroller with Wireless Control and Obstacles Avoidance

open access: yesJurnal Teknologi dan Sistem Komputer, 2017
This research developed a mobile wall climbing robot prototype using 4 DC motors as its driver and a suction tube. It can avoid obstacles. This robot uses Arduino Mega 2560 as its controller board. The robot's weight is 747 grams.
Eko Didik Widianto   +2 more
doaj   +1 more source

HV Holding in Vacuum, a Key Issue for the ITER Neutral Beam Injector

open access: yes, 2018
This overview summarizes the R&D activities aimed to secure for the ITER Neutral Beam Injectors a stable voltage holding, one of the most challenging issue for the NBI systems operation.
Svensson, Lennart   +25 more
core   +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

Temperature dependence of ESD effects on 28 nm FD‐SOI MOSFETs

open access: yesEngineering Reports
The failure mechanisms caused by electrostatic discharge (ESD) effects at ambient temperatures ranging from −75 to 125°C are investigated by Silvaco TCAD simulator.
Yiping Xiao   +6 more
doaj   +1 more source

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