Results 91 to 100 of about 9,936 (212)
Magnetic Gimbal Proof-of-Concept Hardware performance results [PDF]
The Magnetic Gimbal Proof-of-Concept Hardware activities, accomplishments, and test results are discussed. The Magnetic Gimbal Fabrication and Test (MGFT) program addressed the feasibility of using a magnetic gimbal to isolate an Electro-Optical (EO ...
Stuart, Keith O.
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Siloxane‐Activated Through‐Space Conjugation in Conventional Chromophores for Dual‐State Emission
Aggregate, Volume 7, Issue 5, May 2026.Siloxane‐activated through‐space conjugation (TSC) in polymer chains creates dual‐state emissive materials. Through a “dynamic encapsulation” mechanism, siloxane linkages organize chromophores into non‐covalently coupled assemblies, yielding high quantum yields.
Yu Qian, Shengyu Feng, Dengxu Wang
wiley +1 more source
Analytical design and evaluation of an active control system for helicopter vibration reduction and gust response alleviation [PDF]
An analytical study was conducted to define the basic configuration of an active control system for helicopter vibration and gust response alleviation. The study culminated in a control system design which has two separate systems: narrow band loop for ...
Gold, P. +3 more
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Physicochemical and Mechanical Characterization of Commercial Collagen‐Based Wound Dressings
Advanced NanoBiomed Research, Volume 6, Issue 5, May 2026.Commercial collagen‐based wound dressings are systematically compared to reveal how porous architecture governs hydration‐driven swelling and mechanical adaptation. Distinct structure–function relationships are identified, showing that wet‐state elasticity and conformability emerge from material composition and processing rather than manufacturer ...
Davide V. Verdolino +4 more
wiley +1 more source
Photophysics of Biological and Biomimetic Sunscreen Molecules
ChemPhotoChem, Volume 10, Issue 5, May 2026.Recent photochemical and photophysical research into natural and nature‐inspired UV filter molecules is reviewed, with a focus on the application of these systems in next‐generation sunscreens. The results of time‐resolved UV spectroscopy experiments and theoretical studies are discussed.
Michael Hymas, Vasilios G. Stavros
wiley +1 more source
Earthquake Spectra, Volume 42, Issue 2, May 2026.This study investigates the vertical dynamic response of a 52‐story high‐rise building in downtown Los Angeles using small‐magnitude earthquake data recorded by the Community Seismic Network. While seismic design traditionally emphasizes horizontal ground motion, vertical accelerations can have a significant impact on tall structures, leading to ...
Viviana Vela +4 more
wiley +1 more source
Journal of Mass Spectrometry, Volume 61, Issue 5, May 2026.ABSTRACT Cyclic peptides occupy a structurally dynamic region of chemical space, where function often arises from ensembles rather than a single dominant fold. Closed backbones, frequent N‐methylation, heteroatoms, unnatural amino acids, and a strong propensity for metal coordination create dense conformational and coordination landscapes that ...
Emmanuel Nkyaagye +2 more
wiley +1 more source
An analytical method for designing low noise helicopter transmissions [PDF]
The development and experimental validation of a method for analytically modeling the noise mechanism in the helicopter geared power transmission systems is described. This method can be used within the design process to predict interior noise levels and
Bossler, R. B., Jr. +2 more
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Triplet 4‐Nitrenemethyl‐Pyridine‐N‐Oxide: A Model Alkyl Nitrene Isolated in Cryogenic Matrices
Journal of Physical Organic Chemistry, Volume 39, Issue 5, May 2026.The simplest triplet alkyl nitrene bearing a pyridine‐N‐oxide moiety was generated by direct irradiation (λ > 350 nm) of the corresponding azide in an Ar matrix at 15 K. Quantum tunneling 1,2‐H shift to the corresponding imine is thermodynamically favorable but does not occur due to a high‐energy barrier (~36 kcal mol−1).
Cláudio M. Nunes +5 more
wiley +1 more source
Auxetic Behavior in JUC‐530: The Effect of Interstitial Molecules on Framework Deformation
physica status solidi (b), Volume 263, Issue 5, May 2026.Auxetic behavior in the JUC‐530 covalent organic framework is predicted by molecular modeling to arise from a cooperative tetrahedral‐flattening mechanism within the framework topology. Guest molecule loading (N2, CH4, benzene) is shown to suppress the negative Poisson's ratio response.
Grace A. Muscat +5 more
wiley +1 more source