Results 91 to 100 of about 31,184 (234)

Photoswitchable Conductive Metal–Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu   +5 more
wiley   +1 more source

Effect of medium/high temperature tempering on the strength and fatigue properties of 60Si2CrV spring steel

open access: yesJixie qiangdu
ObjectiveAims to investigate the lack of test data and microscopic mechanism analysis of 60Si2CrV spring steel under high-temperature tempering.
FENG Yonghua   +8 more
doaj  

MORPHOLOGY MODIFICATION OF CARBON CHROME MOLYBDENUM STEEL STRUCTURE INFLUENCED BY HEAT TREATMENT

open access: yesЛитьë и металлургия, 2011
The influence of temperature and time parameters of thermal treatment on structural change and properties of carbon chromium molybdenum steel has been studied.
V. A. Lutsenko   +4 more
doaj   +1 more source

Short-term hot hardness characteristics of rolling-element steels [PDF]

open access: yes
Short-term hot hardness studies were performed with five vacuum-melted steels at temperatures from 294 to 887 K (70 to 1140 F). Based upon a minimum Rockwell C hardness of 58, the temperature limitation on all materials studied was dependent on the ...
Chevalier, J. L.   +2 more
core   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

open access: yesAdvanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong   +16 more
wiley   +1 more source

Study on strengthening and toughening mechanisms of 1000 MPa grade hydropower steel with low-temperature high toughness

open access: yesJournal of Materials Research and Technology
This study investigates the high-toughness performance of 1000 MPa grade hydropower steel under ultra-low temperature conditions, along with the microstructural evolution and strengthening mechanisms during quenching and tempering processes.
Fan Wang   +6 more
doaj   +1 more source

Numerical simulations on the 4d Heisenberg spin glass

open access: yes, 1994
We study the 4d Heisenberg spin glass model with Gaussian nearest-neighbor interactions. We use finite size scaling to analyze the data. We find a behavior consistent with a finite temperature spin glass transition.
B Coluzzi   +10 more
core   +2 more sources

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Study of a model for the folding of a small protein

open access: yes, 2005
We describe the results obtained from an improved model for protein folding. We find that a good agreement with the native structure of a 46 residue long, five-letter protein segment is obtained by carefully tuning the parameters of the self-avoiding ...
Andrea Nobile   +4 more
core   +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

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