Results 91 to 100 of about 1,538,403 (301)

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

Transient Power Angle Control for a Droop-Controlled Voltage Source Converter Considering Fault Current Limitation

open access: yesCSEE Journal of Power and Energy Systems
Voltage source converters (VSCs), equipped with $P-f$ and $Q-U$ droop characteristics, can support a power system from both frequency and voltage. Unfortunately, overcurrent and power angle instability are still challenging aspects of VSCs under fault ...
Pingjuan Ge   +5 more
doaj   +1 more source

Coordinated Control Strategy for Current Inner Loops to Enhance Transient Synchronization Stability During LVRT Under Symmetrical Faults [PDF]

open access: yesDianli jianshe
[Objective] Grid-following converters (GFL) are widely employed in renewable energy grid integration systems. When grid faults cause voltage sags,the system enters a low voltage ride-through (LVRT) process.
SUN Li, ZHI Tianyang, LIU Hongbo, MA Chenglian
doaj   +1 more source

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

open access: yesFEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López   +2 more
wiley   +1 more source

Examining the Linear Cooling Characteristics of Microfluid Based on Thermoelectric Refrigeration

open access: yesZhileng xuebao
Currently, the precise linear cooling of microfluidics remains a challenge in the development and application of microfluidic technology in medicine and life sciences.
Wang Haoqing   +8 more
doaj  

A multi-stage DC current control strategy for suppressing transient overvoltage of LCC-HVDC sending end grid

open access: yesInternational Journal of Electrical Power & Energy Systems
The fast DC current recovery is widely adopted in the existing Voltage Dependent Current Order Limiter (VDCOL) for Line Commutated Converter-based High Voltage Direct Current (LCC-HVDC) systems to mitigate transient overvoltage in the sending-end grid ...
Bo Pang   +6 more
doaj   +1 more source

Microscopic Current Dynamics in Nanoscale Junctions

open access: yes, 2007
So far transport properties of nanoscale contacts have been mostly studied within the static scattering approach. The electron dynamics and the transient behavior of current flow, however, remain poorly understood.
G. F. Giuliani   +12 more
core   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

open access: yesFEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto   +3 more
wiley   +1 more source

Portable circuit-interruption indicator [PDF]

open access: yes, 1971
Device locates transient power interruptions occurring in electrical equipment. Indicator operates on principle that circuit in normal use retains residual current in the line prior to an ...
Bezant, K. R.
core   +1 more source

Current-voltage characteristics of semiconductor/ferromagnet junctions in the spin blockade regime

open access: yes, 2007
It was recently predicted [Phys. Rev. B 75, 193301 (2007)] that spin blockade may develop at nonmagnetic semiconductor/perfect ferromagnet junctions when the electron flow is directed from the semiconductor into the ferromagnet.
D. L. Scharfetter   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy