Results 91 to 100 of about 9,346,198 (349)

On the evolutionary and pulsation mass of Classical Cepheids: III. the case of the eclipsing binary Cepheid CEP0227 in the Large Magellanic Cloud

open access: yes, 2012
We present a new Bayesian approach to constrain the intrinsic parameters (stellar mass, age) of the eclipsing binary system CEP0227 in the LMC.
Alcock   +59 more
core   +1 more source

Modeling Frequency-Dependent Core Loss of Ferrite Materials Using Permeance–Capacitance Analogy for System-Level Circuit Simulations

open access: yesIEEE transactions on power electronics, 2019
Ferrite core materials are preferred for magnetic components in power electronic converters considering their low cost and high permeability. Thanks to their negligible electrical conductivity, core loss is dominated by the frequency-independent ...
Min Luo, D. Dujić, J. Allmeling
semanticscholar   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

open access: yesFEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman   +2 more
wiley   +1 more source

Stellar neutrino energy loss rates due to $^{24}$Mg suitable for O+Ne+Mg core simulations

open access: yes, 2011
Neutrino losses from proto-neutron stars play a pivotal role to decide if these stars would be crushed into black holes or explode as supernovae. Recent observations of subluminous Type II-P supernovae (e.g., 2005cs, 2003gd, 1999br, 1997D) were able to ...
J.-U. Nabi   +3 more
core   +1 more source

Effects of Rotation on the Minimum Mass of Primordial Progenitors of Pair Instability Supernovae [PDF]

open access: yes, 2012
The issue of which stars may reach the conditions of electron/positron pair formation instability is of importance to understand the final evolution both of the first stars and of contemporary stars.
Abel   +40 more
core   +2 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Core Loss Prediction Model of High-Frequency Sinusoidal Excitation Based on Artificial Neural Network

open access: yesMagnetochemistry
The magnitude of core loss is a crucial factor affecting the efficiency of power converters. Due to the complex mechanism of core loss, diverse influencing factors, and the strong coupling characteristics between materials and operating conditions ...
Cunhao Lu   +3 more
doaj   +1 more source

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

Design of Multi-Nanoparticles Technique for Enhancing Magnetic Characterization of Power Transformers Cores

open access: yesAdvances in Electrical and Electronic Engineering, 2018
The structure of magnetic materials is an essential parameter for specifying magnetic characterization of the transformer core. This paper presents enhancing magnetic characterization of transformer cores by using new nanotechnology techniques.
Ahmed Thabet   +2 more
doaj   +1 more source

Low-loss Multimoded Antiresonant Hollow Core Fiber

open access: yes14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020), 2020
We report the first design for low-loss, multimoded antiresonant hollow-core fiber for applications requiring multiple modes. The designed fiber guides 6 - 9 spatially distinct core modes having confinement loss <0.001 - 0.01dB/m respectively.
Goel, Charu, Yoo, Seongwoo
openaire   +2 more sources

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