Results 61 to 70 of about 48,127 (315)
Advanced Engineering Materials, EarlyView.Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley +1 more source
Advanced Engineering Materials, EarlyView.Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali +5 more
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Coordinated optical and radar observations of ionospheric pumping for a frequency pass through the second electron gyroharmonic at HAARP [PDF]
, 2007 On 4 February 2005, the High-frequency Active Auroral Research Program (HAARP) facility was operated in O and X mode while pointing into the magnetic zenith to produce artificial optical emissions in the ionospheric F layer. The pump frequency was set to
Senior, Andrew +7 more
core
Vibrational state effect on frequency modulation of harmonic emission from H2+
四川大学学报. 自然科学版, 2019 High-order harmonic generation from H2+ with different vibrational states has been theoretically investigated. The results show that the red-shifts of the harmonics can be found in the lower vibrational states. As the vibrational state increases, the red-
LIU Hang +3 more
doaj
Molecular Adsorbing Host•Guest (MAHG) Crystals: A New Paradigm for Porous Materials?
Advanced Functional Materials, EarlyView.Networking! Introduction of guest molecules in macrocycles before crystallization profoundly influences the material obtained in terms of structure and function. Beside simplicity and porous space improvement, this approach is endowed with a huge potential given the myriad of potential guest molecules that can be used to tune this burgeoning class of ...
Ingrid Suzana +4 more
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IEEE AccessThe high-frequency harmonics in the power grid have significantly increased, necessitating the construction of equivalent circuit models for large power transformers under the influence of high-frequency harmonics.
Yingying Wang +3 more
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Energies, 2022 The advantages of three-level neutral-point-clamped (NPC) H-bridge inverters, such as simple topological structure, low device voltage stress, high equivalent switching frequency, and highly expansible capacity, have made them the preferred choice for ...
Wen-Jie Wu +3 more
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Advanced Functional Materials, EarlyView.In situ Auger Electron Spectroscopy resolves oxidation states with high fidelity during the pulsed laser deposition of multivalent perovskite manganate and vanadate heterostructures. The chemical‐state signature is carried by the valence‐electron population of the transition‐metal cation, read out through the relative intensities of Auger fine ...
Harish Kumarasubramanian +1 more
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IEEE Access, 2019 Aiming at the high-frequency resonance instability phenomenon in high-speed railways and traction network (simplified as “train-network”) system, a new modulation strategy is proposed.
Xinyu Zhang +4 more
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Coexistence of Bloch and Parametric Mechanisms of High-Frequency Gain in Doped Superlattices
Nanomaterials, 2023 The detailed theoretical study of high-frequency signal gain, when a probe microwave signal is comparable to the AC pump electric field in a semiconductor superlattice, is presented.
Vladislovas Čižas +3 more
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