Results 111 to 120 of about 54,362 (337)

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

open access: yesAdvanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam   +6 more
wiley   +1 more source

Cosine tuning of muscle activation.

open access: yes, 2018
A-D: Example of the parameters of a spatial cosine function characterizing the directional tuning of three muscles (Biceps short head, Triceps long head, and Deltoid middle) of subject 8.
Benedetta Cesqui (331537)   +4 more
core   +1 more source

On W∗-continuous cosine operator functions

open access: yesJournal of Functional Analysis, 1986
This paper presents some results on the dual theory, the infinitesimal comparison, and the ergodic theory of a strongly continuous cosine operator function \(C(\cdot)\) on a Banach space. The dual theory, which is studied in section 2, is similar to that of a \((C_ 0)\)-semigroup.
openaire   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

open access: yesAdvanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia   +3 more
wiley   +1 more source

Large‐Area 2D Metasurface‐Based Triboelectric E‐Skin Arrays: Contact & Proximity Tactile Mapping with Broadband Acoustic Readouts

open access: yesAdvanced Materials, EarlyView.
Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief   +12 more
wiley   +1 more source

Euler's integral, multiple cosine function and zeta values

open access: yes, 2023
In 1769, Euler proved the following result $$ \int_0^{\frac\pi2}\log(\sin \theta) d\theta=-\frac\pi2 \log2. $$ In this paper, as a generalization, we evaluate the definite integrals $$ \int_0^x \theta^{r-2}\log\left(\cos\frac\theta2\right)d\theta ...
Hu, Su, Kim, Min-Soo
core  

A remark on nonlinear cosine functions

open access: yesSemigroup Forum, 1986
Well-posed linear initial value problems of the form \(d^ 2u(t)/dt^ 2=Au(t)\), \(u(0)=x\), \((du/dt)(0)=0\) have unique solutions given by \(u(t)=C(t)x\) where the cosine function C satisfies \[ \begin{cases} C(t+s)+C(t- s)= 2C(t)C(s) \quad (t,s\in {\mathbb{R}})\\ C(0)=I.\end{cases} \tag{*} \] Linear cosine function theory is analogous to \((C_ 0 ...
Goldstein, J.A., Ôharu, S.
openaire   +1 more source

All‐Optical Reconfigurable Physical Unclonable Function for Sustainable Security

open access: yesAdvanced Materials, EarlyView.
An all‐optical reconfigurable physical unclonable function (PUF) is demonstrated using plasmonic coupling–induced sintering of optically trapped gold nanoparticles, where Brownian motion serves as a robust entropy source. The resulting optical PUF exhibits high encoding density, strong resistance to modeling attacks, and practical authentication ...
Jang‐Kyun Kwak   +4 more
wiley   +1 more source

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