Results 51 to 60 of about 148,707 (321)

Alternate activation-annihilation of dislocations realizes the plasticity of sapphire during indentation

open access: yesMaterials & Design
A “renaissance” of sapphire is regarded as one of the most significant tendencies of modern materials science. But sapphire has almost no plasticity at room temperature, making its surface finishing a formidable challenge.
Junyun Chen   +4 more
doaj   +1 more source

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

How do staff work in NHS hospital operations management meetings to support resilience in everyday service delivery? A qualitative study

open access: yesBMC Health Services Research
Background Operations Management meetings in NHS hospitals provide an opportunity for operational and clinical staff to monitor demand and capacity and manage patient flow. These meetings play an important role in the achievement of resilient performance
L. Sutton   +10 more
doaj   +1 more source

Laser machining of transparent brittle materials: from machining strategies to applications

open access: yesOpto-Electronic Advances, 2019
Transparent brittle materials such as glass and sapphire are widely concerned and applied in consumer electronics, optoelectronic devices, etc. due to their excellent physical and chemical stability and good transparency.
Xie Xiaozhu   +4 more
doaj   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

open access: yesAdvanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth   +8 more
wiley   +1 more source

Effective Survey Methods for the Elusive Data Deficient Black Flying Squirrel (Aeromys tephromelas) in Sabah, Malaysia Facilitate First Vocalisation Record

open access: yesAnimals
Flying squirrels are nocturnal, gliding relatives of tree and ground squirrels (order Sciuridae). Despite 49 species existing, literature on Asiatic flying squirrels is scarce, thus they are overlooked in conservation action plans.
Sapphire Hampshire, Priscillia Miard
doaj   +1 more source

Influence of crystal anisotropy and process parameters on surface shape deviation of sapphire slicing

open access: yesJin'gangshi yu moliao moju gongcheng, 2023
Due to the anisotropy of sapphire crystal material, the mechanical properties vary in multi-wire saw slicing based on different cutting positions. This variation leads to the deviation of the diamond wire in the vertical feed direction, resulting in the ...
Chao WANG   +3 more
doaj   +1 more source

Investigation of a direction sensitive sapphire detector stack at the 5 GeV electron beam at DESY-II

open access: yes, 2015
Extremely radiation hard sensors are needed in particle physics experiments to instrument the region near the beam pipe. Examples are beam halo and beam loss monitors at the Large Hadron Collider, FLASH or XFEL.
Afanaciev, K.   +8 more
core   +1 more source

Clean‐Limit 2D Superconductivity in a Thick Exfoliated Kagome Film

open access: yesAdvanced Functional Materials, EarlyView.
This study reports clean‐limit 2D superconductivity in a thick kagome system, analogous to the 3D case. It observes a drop in superfluid stiffness near the superconducting transition and a cusp‐like feature in the angular dependence of the upper critical field.
Fei Sun   +3 more
wiley   +1 more source

Unveiling Phonon Contributions to Thermal Conductivity and the Applicability of the Wiedemann—Franz Law in Ruthenium and Tungsten Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Thermal transport in Ru and W thin films is studied using steady‐state thermoreflectance, ultrafast pump–probe spectroscopy, infrared‐visible spectroscopy, and computations. Significant Lorenz number deviations reveal strong phonon contributions, reaching 45% in Ru and 62% in W.
Md. Rafiqul Islam   +14 more
wiley   +1 more source

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