Results 111 to 120 of about 2,649,124 (255)

Effect of Alloy Elements on Stacking Fault Probability and Damping Capacity of Fe-Mn Alloy

open access: yes工程科学与技术, 2007
:The stacking fault probability and damping capacity of Fe-19Mn,Fe-17Mn-2Cr and Fe-19Mn-1.5Si alloys were studied. The damping capacity was measured using reversal torsion pendulum.
doaj  

Single‐Particle FRET Probes Heterogeneity in the Ligand Shell of Colloidal Perovskite Quantum Dots

open access: yesAdvanced Materials, EarlyView.
Single‐particle, single‐molecule Förster resonance energy transfer turns dye‐tagged ligands into nanorulers for the otherwise elusive organic shell of CsPbBr3 quantum dots. Distance variations within individual particles reveal pronounced local heterogeneity, while changes in the surrounding ligand chemistry shift the average dye–surface separation ...
Leon G. Feld   +6 more
wiley   +1 more source

Pulse current induced damping enhancement in micron-submicron pure magnesium

open access: yesJournal of Magnesium and Alloys
Achieving synergistic enhancement of damping-mechanical performance in pure Mg remains a tough challenge. Electric pulse treatment has proven effective in regulating the microstructure of materials.
Di Su   +5 more
doaj   +1 more source

Reduced joint models for damping design of multi-jointed structures [PDF]

open access: yes, 2014
− Design of damping in multi-jointed structures is studied here. − Dissipation sources are viscoelastic behavior and contact/friction at joints interfaces. − Reduction on meta-models of nonlinear joints models is investigated.
BALMES, Etienne   +2 more
core  

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

open access: yesAdvanced Materials, EarlyView.
In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim   +5 more
wiley   +1 more source

Parity‐Dependent THz Harmonic Generation in Electrically Pumped Micro‐Lasers Exploiting Topological Insulator–Metamaterial Gratings

open access: yesAdvanced Materials, EarlyView.
Topological insulator–metamaterials integrated with electrically driven terahertz quantum cascade lasers enable parity‐dependent harmonic generation. Bulk‐dominated Bi2Se3 favors third‐harmonic emission at 9.96 THz, whereas topological‐surface‐state‐dominated Bi2Se3, Bi2Te3, and (Bi,Sb)2Te3 generate strong second harmonics near 6.5 THz.
Alessandra Di Gaspare   +9 more
wiley   +1 more source

Fiber‐Format Flexible Linear Electrostatic Motors

open access: yesAdvanced Materials, EarlyView.
A flexible coaxial fibre‐format electrostatic motor enables backdrivable and reversible linear actuation with high force density and functionality under bending, offering a scalable actuation platform for soft and wearable robotics. ABSTRACT Linear motion is fundamental to robotics, yet existing solutions are either rigid electromagnetic motors or ...
Sylvain Schaller, Herbert Shea
wiley   +1 more source

Non-Dimensional Parameters to Design Damper Systems in RC Existing Framed Buildings

open access: yesApplied Sciences
The use of dissipative bracing systems by hysteretic dampers represents one of the most efficient innovative techniques for the seismic retrofitting of existing structures, especially for reinforced concrete (RC) frame buildings.
Eliana Parcesepe   +2 more
doaj   +1 more source

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