Results 111 to 120 of about 358,634 (284)

A zero-sqrt(5)/ 2 law for cosine families

, 2015
Let $a \in \R,$ and let $k(a)$ be the largest constant such that $sup\vert cos(na)-cos(nb)\vert \textless{} k(a)$ for $b\in \R$ implies that $b \in \pm a+2\pi\Z.
Esterle, Jean
core  

Magnetically Actuated Drops‐on‐Stilts Microrobots for Transport and Delivery of Hydrophobic Cargo

Advanced Materials Interfaces, EarlyView.
Iron oxide nanoparticles and oil droplets in external magnetic fields form “drops‐on‐stilts” microrobots that transport hydrophobic cargo. Tunable nanoparticle–droplet interactions generate stilt‐like structures. Field rotation enables walking, obstacle navigation, and collective motion.
Oluwafemi Ligan, Hrishabh Singh, Sahil Kulkarni, Hong Huy Tran, James M. Kikkawa, Daeyeon Lee, Ravi Radhakrishnan, Edward Steager, Hyun Koo, Kathleen Stebe   +9 more
wiley   +1 more source

Tailoring the Morphology of MoS2 using RF Magnetron Sputtering for Enhanced Photoelectrochemical Water Splitting

Advanced Materials Interfaces, EarlyView.
Tailoring the morphology of MoS2 using RF Magnetron Sputtering for Enhanced Photoelectrochemical Water Splitting. ABSTRACT 2D molybdenum disulfide (MoS2) is a promising material for optoelectronic and photoelectrochemical (PEC) applications due to its unique properties.
Somnath Ladhane, Shruti Shah, Jyoti Thombare, Mansi Ingole, Swati Rahane, Priti Vairale, Vidya Doiphode, Yogesh Hase, Shashikant P. Patole, Sandesh Jadkar   +9 more
wiley   +1 more source

Cosine Similarity Measure of Interval Valued Neutrosophic Sets [PDF]

Neutrosophic Sets and Systems, 2014
In this paper, we define a new cosine similarity between two interval valued neutrosophic sets based on Bhattacharya’s distance [19]. The notions of interval valued neutrosophic sets (IVNS, for short) will be used as vector representations in 3D-vector ...
Said Broumi, Florentin Smarandache
doaj  

Mechanically Robust MXene‐Metal Polyphenol Network Hybrid Interfaces for Multifunctional Protection of Keratin Fibers

Advanced Materials Interfaces, EarlyView.
Hair keratin fibers inevitably deteriorate under UV exposure, heat, and dryness. A robust composite coating assembles delaminated Ti3C2 MXene nanosheets onto keratin surfaces through biocompatible metal‐polyphenol networks of EGCG. This hybrid layer simultaneously screens UV, dissipates heat, reinforces mechanical strength, suppresses static charge ...
Juyeon Kang, Bomin Kim, Minkyoung Kim, Juyeon Park, Saehan Choi, Won Jun Lee, Heewon Kim, Yoonsung Nam, Jongwon Shim   +8 more
wiley   +1 more source

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

Кібернетика 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

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

Advanced 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, Dong Kwan Kang, Haejin Bae, Ho‐Sup Jung, Hoon Eui Jeong   +4 more
wiley   +1 more source

Magnetic Textiles: A Review of Materials, Fabrication, Properties, and Applications

Advanced Materials Technologies, EarlyView.
Magnetic textiles (M‐textiles) are emerging as a programmable materials platform that merges magnetic matter with hierarchical textile structures. This article consolidates magnetic material classes, textile architectures, and fabrication and magnetization strategies, revealing structure–property–function relationships that govern magneto‐mechanical ...
Li Ke, Moses Kumi, Xiaoming Tao, Junhong Pu   +3 more
wiley   +1 more source

余弦齿轮的有限元模态分析

Jixie 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, 罗善明, 王建, 陈立锋, 胡华荣   +4 more
doaj  

Coupling of Er3+ ions and Plasmonic Modes in Vertical Nanocavities for Spectral Broadening in Telecom Bands

Advanced Materials Technologies, EarlyView.
Left: Illustration of the glass & nanostructures system and the NIR emission at 1.5 µm, where the colored spheres represent the Er3+ ions within the doped glass. Right: Representation of the Stark splitting of the 4I13/2 and 4I15/2 manifolds of the Er3+, illustrating how the plasmonic modes facilitate the emission from the broader Stark manifold ...
Gaston Lozano Calderón, Víctor Anthony García Rivera, Stéphan Cagnon, Souleymane Toubou Bah, Younès Messaddeq, Euclydes Marega Junior   +5 more
wiley   +1 more source