Results 61 to 70 of about 119,844 (307)

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Physical simulation of heat exchange between 6(10) kV voltage instrument transformer and its environment with natural convection and insolation

open access: yesMATEC Web of Conferences, 2018
This study examines the results of thermal tests on a 6(10) kV digital combined current and voltage transformer conducted in an environmental chamber. This measuring instrument consists of current and voltage transformers, featuring a resistive divider ...
Litvinov Sergey N.   +4 more
doaj   +1 more source

Isolated, multiple-output voltage dc-to-dc converter [PDF]

open access: yes, 1969
Isolated, multiple output voltage dc-to-dc converter provides power for television transmitter used in space vehicles. The isolation is accomplished by using a single-end switching transformer circuit.

core   +1 more source

One-Quadrant Switched-Mode Power Converters [PDF]

open access: yes, 2016
This article presents the main topics related to one-quadrant power converters. The basic topologies are analysed and a simple methodology to obtain the steady-state output-input voltage ratio is set out.
Petrocelli, R.
core   +3 more sources

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

ВИЗНАЧЕННЯ ВПЛИВУ КОЕФІЦІЄНТА НЕЧУТЛИВОСТІ ПРИСТРОЮ АВТОМАТИЧНОГО КЕРУВАННЯ РПН НА НАПРУГУ В РОЗПОДІЛЬНІЙ ЕЛЕКТРИЧНІЙ МЕРЕЖІ

open access: yesПраці Інституту електродинаміки Національної академії наук України
The state of the electrical distribution network, that was equipped with the transformer automatic OLTC device, was simulated. The voltage regulation law of the transformer was determined to ensure permissible voltage levels on the buses of transformer ...
О.Г. Шполянський   +1 more
doaj   +1 more source

Lightweight, high-frequency transformers [PDF]

open access: yes, 1983
The 25-kVA space transformer was developed under contract by Thermal Technology Laboratory, Buffalo, N. Y. The NASA Lewis transformer technology program attempted to develop the baseline technology. For the 25-kVA transformer the input voltage was chosen
Schwarze, G. E.
core   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Passive heat transfer control [PDF]

open access: yes, 1970
Model maintains a preselected temperature in the near vicinity of a variable source of thermal energy. Heat input is controlled by a variable transformer and a voltage drop across the heater is used to calculate power ...
Fitz, F. A.
core   +1 more source

Design of High Voltage Transformer Windings Withstanding Surge Voltages

open access: yesIEEJ Transactions on Power and Energy, 1999
High voltage windings of high power transformers, have to be designed in such a way as to withstand surge voltages. From this point of view, interleaved windings have the better behaviour, but they are much more expensive with respect to continuous ones.
openaire   +4 more sources

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