Results 61 to 70 of about 554,038 (277)

Near‐Unity Chiral Lasing Enabled by Quasi‐Bound States in the Continuum

open access: yesAdvanced Materials, EarlyView.
Nanoimprinted chiral array that supports bound states in the continuum is doped with an efficient non‐chiral molecule (Rhodamine‐B) acting as gain medium to produce fully circularly polarized lasing emission. The chiral lasing wavelength can be tuned across the emission band of Rhodamine‐B by adjusting the coating thickness of the TiO2 high refractive ...
Jose Mendoza‐Carreño   +5 more
wiley   +1 more source

Creating a quasi-linear model of an elastic damper support of the gas turbine engine rotor

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение
In the presented work, the calculation of critical rotor speeds and determination of vibration characteristics of an advanced gas turbine engine are considered. The engine under study contains a low-pressure compressor with an elastic damper support of a
A. G. Tereshko, M. K. Leontiev
doaj   +1 more source

Quasi-free neutron and proton knockout reactions from light nuclei in a wide neutron-to-proton asymmetry range

open access: yesPhysics Letters B, 2019
The quasi-free scattering reactions 11C(p,2p) and 10,11,12C(p,pn) have been studied in inverse kinematics at beam energies of 300–400 MeV/u at the R3B-LAND setup.
M. Holl   +68 more
doaj   +1 more source

Multiobjective Codesign Optimization of a Planar Pneumatic Artificial Muscle‐Based Snake‐Like Robot for Enhanced Agility and Energy Efficiency

open access: yesAdvanced Robotics Research, EarlyView.
A codesign multiobjective optimization framework was developed to enhance the morphology and controller of a snake‐like robot driven by artificial muscles. It improved planar locomotion, agility, and power efficiency. The approach optimized link geometry and controller gains, revealing that shorter muscles near joints and longer linkages maximize ...
Ayla Valles, Mahdi Haghshenas‐Jaryani
wiley   +1 more source

Coincidence and modality

open access: yes, 2012
How should we understand de re modal features of objects, if there are such features? Any answer to the question is connected to how we should think about coincident objects, objects which occupy the same spatio-temporal region and share the same ...
Kang, Li
core  

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

The decay pattern of the Pygmy Dipole Resonance of 140Ce

open access: yesPhysics Letters B, 2016
The decay properties of the Pygmy Dipole Resonance (PDR) have been investigated in the semi-magic N=82 nucleus 140Ce using a novel combination of nuclear resonance fluorescence and γ–γ coincidence techniques. Branching ratios for transitions to low-lying
B. Löher   +25 more
doaj   +1 more source

Quasi-coincidence of cluster structures on positroid varieties

open access: yesJournal of the European Mathematical Society
By work of a number of authors, beginning with Scott and culminating with Galashin and Lam, the coordinate rings of positroid varieties in the Grassmannian carry cluster algebra structures. In fact, they typically carry many such structures, the two best understood being the source-labelled and target-labelled structures, referring to how the initial ...
openaire   +2 more sources

A Soft Robotic Device for Targeted Massage Therapy of Residual Limbs

open access: yesAdvanced Robotics Research, EarlyView.
Residual limb edema after amputation can hinder recovery and delay prosthetic fitting. This study presents a soft‐robotic wearable device that delivers sequential compression through pneumatic McKibben actuators. By replicating the principles of manual lymphatic drainage, the device generates controlled mechanotherapeutic pressure patterns, providing a
Maria Grazia Polizzotto   +5 more
wiley   +1 more source

Vila Nova de Famalicão entre a Revolução Liberal e a Primeira República - cultura, alfabetização/escolarização, sociedade

open access: yes, 2005
O texto recai sobre a evolução do Município nas suas diferentes acepções e muito particularmente sobre alfabetização, escolarização e sociabilidade escrita. A investigação recai sbre as dimensões processuais da acção, da materialidade, no que se refere à
Magalhães, Justino
core   +2 more sources

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