Results 81 to 90 of about 132,712 (265)

Arabidopsis RecQl4A suppresses homologous recombination and modulates DNA damage responses [PDF]

open access: yes, 2005
The DNA damage response and DNA recombination are two interrelated mechanisms involved in maintaining the integrity of the genome, but in plants they are poorly understood.
Bachrati   +64 more
core   +3 more sources

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

open access: yesAdvanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno   +16 more
wiley   +1 more source

Computational simulation of high temperature metal matrix composite behavior [PDF]

open access: yes
Computational procedures are described to simulate the thermal and mechanical behavior of high temperature metal matrix composite (HT MMC) in the following four broad areas: (1) behavior of HT MMC from micromechanics to laminate; (2) HT MMC structural ...
Chamis, Christos C., Murthy, Pappu L. N.
core   +1 more source

Stoichiometry‐Programmed MXenes via Precursor Engineering for High‐Performance EMI Shielding and Energy Storage

open access: yesAdvanced Materials, EarlyView.
Precursor carbon stoichiometry programs internal strain and oxygen substitution in Ti3AlCxO2‐x, deterministically switching Ti3CxO2‐xTz MXenes between highly aligned 2D nanosheets and spontaneous 1D nanoscrolls. This synthesis‐stage architecture control enables ultrathin X/W‐band EMI shielding with outstanding mass‐normalized performance and bending ...
Jaeeun Park   +12 more
wiley   +1 more source

Influencia del tratamiento isotérmico en la intercara de los intermetálicos Ni3Al como refuerzo de un compuesto de matriz de aluminio obtenido por pulvimetalurgia

open access: yesRevista de Metalurgia, 1998
La mejora de las propiedades mecánicas de los composites de aluminio reforzados con partículas de Ni3Al se debe a la continuidad de la unión entre las partículas de refuerzo y la matriz, así como a la resistencia de las primeras.
C. Ferrer   +4 more
doaj   +1 more source

Current Switching of Topological Spin Chirality in the van der Waals Antiferromagnet Co1/3TaS2

open access: yesAdvanced Materials, EarlyView.
Spin chirality plays a central role in quantum magnetism, governing spin winding and generating real‐space Berry phases. We propose the intriguing concept of current‐switching spin chirality and demonstrate it via unconventional intrinsic self‐spin‐orbit‐torque in pristine Co1/3TaS2, purely by electrical current and with high energy efficiency.
Kai‐Xuan Zhang   +3 more
wiley   +1 more source

Self‐Regulating Sodium‐Ion Battery Materials: From Phase Reconstruction to Functional Activation

open access: yesAdvanced Materials, EarlyView.
Self‐regulating sodium‐ion batteries hinge on programmable phase behavior in layered oxides, interphases that renew without growth, and electrolytes that steer solvation and chemistry. This review distills mechanisms into design rules that span composition, site and entropy tuning, and self‐buffering anodes, linking operando evidence to choices and ...
Hong Gao   +10 more
wiley   +1 more source

Design of protection functions and block strategies for inverter station of a hybrid cascaded UHVDC transmission system

open access: yesZhejiang dianli
This paper focuses on the inverter station of ultra-high voltage direct current (UHVDC) transmission system with a hybrid cascaded structure. Based on its primary topological structure, adhering to the principles of protection without dead zones and easy
TANG Jun   +5 more
doaj   +1 more source

Do scale-invariant fluctuations imply the breaking of de Sitter invariance?

open access: yes, 2012
The quantization of the massless minimally coupled (mmc) scalar field in de Sitter spacetime is known to be a non-trivial problem due to the appearance of strong infrared (IR) effects.
Youssef, Ahmed
core   +1 more source

Multifunctional Oxadiazole‐Based Polycatenars: A Pathway to Polar Columnar Phases

open access: yesAdvanced Materials Interfaces, EarlyView.
Aromatic core fluorination directs oxadiazole‐based polycatenars into ferroelectric and antiferroelectric columnar phases with supergelation and photo‐responsiveness. ABSTRACT Polar columnar liquid crystals (LCs) offer a promising pathway to nanostructured architectures for next‐generation ferroelectric devices.
Yu Cao   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy