Results 111 to 120 of about 106,256 (254)

Elasticity‐Driven Periodic Polarization Patterns in a Chiral Ferroelectric Nematic Fluid

open access: yesAdvanced Materials, EarlyView.
Chiral polar ferroelectric nematic fluids exhibit spontaneous formation of stripe, square, and hexagonal polarization textures under confinement. Controlled by thickness and anchoring, these patterns produce spatially modulated nonlinear optical responses.
Anej Sterle   +11 more
wiley   +1 more source

Fast Integer Sine-Cosine Transforms of Order 4 and Simplified Sine-Cosine Transforms of Order 8

open access: yesКібернетика та комп'ютерні технології
Introduction. A matrix method for constructing one-norm sine-cosine transforms of type II of order 4 has been developed, which has better efficiency compared to the known sine transform of type II.
Yaroslav Luts
doaj   +1 more source

Percolation‐Driven β‐Relaxation Enables Resonant Acceleration of Crystallization in Amorphous Phase‐Change Materials

open access: yesAdvanced Materials, EarlyView.
Mobile‐atom percolation underlying β‐relaxations fundamentally dictates the crystallization pathways of phase‐change materials. High‐frequency ultrasonic excitation dynamically modulates this critical mobility percolation network, substantially accelerating the crystallization process.
Yu‐Yao Liu   +11 more
wiley   +1 more source

Defect‐Driven Charge Separation in Ba‐Doped SrTiO3: Correlating Photoelectrochemical Performance With Dye‐Selective Photocatalysis

open access: yesAdvanced Materials Interfaces, EarlyView.
Ba‐doped SrTiO3 perovskites establish a direct correlation between photoelectrochemical activity and photocatalytic performance. Optimized Ba0.5Sr0.5TiO3 exhibits enhanced charge separation, photocurrent generation, and visible‐light‐driven dye degradation through defect‐induced oxygen vacancies and lattice distortion.
Sagar A. Nikam   +6 more
wiley   +1 more source

Micropillar‐Engineered Hybrid Adhesive Patch for Surface‐Conformable and Directional Adhesion

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents a surface‐conformable hybrid adhesive integrating height‐optimized hexagonal micropillars with open‐rectangular cuts. The micropillars enhance rough‐surface contact and microscale crack arrest, while the cuts guide and reverse interfacial cracks for strong and directional adhesion. The multiscale architecture achieves robust pull‐off
Seongjin Park   +4 more
wiley   +1 more source

余弦齿轮的有限元模态分析

open access: yesJixie chuandong, 2009
The cosine gear drive is a new type of gear drive,which takes a cosine curve as the tooth profile.The solid model of the cosine gear is established by using Pro/E software.The former 6 order of natural frequencies and principal shapes are calculated by ...
陈磊   +4 more
doaj  

A new family of alpha power-G using cosine function with applications and regression modeling

open access: yesScientific Reports
This paper discusses a novel technique to creating distribution families by combining the transformation of alpha power and the cosine function. The proposed technique have been named the cosine alpha power-generated family.
Amani S. Alghamdi, Shatha F. ALoufi
doaj   +1 more source

Eutectic Gallium‐Indium as a Potential Non‐Toxic Replacement in Mercury Intrusion Porosimetry

open access: yesAdvanced Materials Technologies, EarlyView.
A practical alternative to mercury intrusion porosimetry is presented using non‐oxidized eutectic gallium‐indium. An eGaIn Filling Station enables oxygen‐free preparation of standard penetrometers, and the resulting measurements faithfully reproduce pore‐size distributions and intrusion volumes measured with mercury across several standard reference ...
Denis Schuetz   +8 more
wiley   +1 more source

An asymptotic formula of cosine power sums

open access: yesLe Matematiche, 2013
In the paper, the authors find several accurate approximations of some cosine power sums and present an asymptotic formula for these cosine power sums.
Mircea Merca, Tanfer Tanriverdi
doaj  

Optimized anomaly detection for soil health monitoring using a cosine sculptor efficient pyramid network

open access: yesDiscover Computing
Soil health monitoring and management support farmers in optimizing soil enrichment and irrigation, and reducing the impacts on the environment. Nevertheless, long-term agricultural practices impact soil health, yet recognizing assessable soil features ...
T. Jaya, C. S. Sree Thayanandeswari
doaj   +1 more source

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