Results 241 to 250 of about 921,049 (277)

Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation

Advanced Materials, EarlyView.
In this work, a universal metasurface multiplexing strategy is presented based on non‐injective transformation. By jointly optimizing two metasurfaces, multiplexed channels achieve independent wavefront control, overcoming crosstalk limits of single‐layer designs.
Xiao Jin, Thomas Zentgraf
wiley   +1 more source

From Molecules to Modules: Advanced Characterization of Membrane Systems

Advanced Materials, EarlyView.
Membrane technologies can enhance the efficiency and selectivity of chemical separations in energy‐water systems. Improving our understanding and design of separation membranes will require studying their properties at the molecular scale, mesoscale, and macroscale. This perspective highlights advanced characterization techniques for revealing membrane
Yaguang Zhu, Austin J. Booth, Jamila G. Eatman, Min A Kim, Yining Liu, Bidushi Sarkar, Bratin Sengupta, Xiaolin Yue, Chibueze V. Amanchukwu, Seth B. Darling, Jeffrey W. Elam, Paul Fenter, Chong Liu, Kelsey B. Hatzell   +13 more
wiley   +1 more source

Revealing the Neglected Role of Passivation Layers of Current Collectors for Solid‐State Anode‐Free Batteries

Advanced Materials, EarlyView.
An in situ X‐ray absorption spectroscopy experiment revealed that the surface passivation layers on copper and stainless steel interact with the sulfide‐based solid‐state electrolyte upon contact, leading to the formation of various interfacial species.
Yijia Wang, Bibin Jose, Yi Yuan, Aadharshini Ganesh, Rina Muhammad Faisal, Ka Ho Chan, Jack Bekou, Lijia Liu, Payam Kaghazchi, Yang Zhao   +9 more
wiley   +1 more source

Adaptive Twisting Metamaterials

Advanced Materials, EarlyView.
This work introduces torque‐controlled twisting metamaterials as a transformative platform for adaptive crashworthiness. By combining multiscale predictive modeling with experimental validation on additively manufactured gyroids, it demonstrates tunable stiffness, collapse stress, and energy absorption.
Mattia Utzeri, Maria L. Gatto, Edoardo Mancini, Donato Orlandi, Daniele Cortis, Marco Sasso, Shanmugam Kumar   +6 more
wiley   +1 more source

Magnetic Domain Texture in Fe3O4 Thin Films on SiO2 Nanospheres

Advanced Materials, EarlyView.
Fe3O4 thin films grown on ordered SiO2 nanospheres form curved nanocaps with 3D geometry, inducing magnetic domain texture. X‐ray spectromicroscopy (XMCD‐PEEM), cross‐sectional electron microscopy (STEM), and polarized grazing‐incidence small‐angle neutron scattering (GISANS) reveal how topography modulates magnetization.
Mai Hussein Hamed, Yifan Xu, Hebatalla Elnaggar, Mohamed Zaghloul, Antonio M. Mio, Alicia Backs, Annika Stellhorn, Vitor de Oliveira Lima, Chenyang Yin, Connie Bednarski‐Meinke, Nina‐Juliane Steinke, Oleg Petracic, Thomas Brückel, Thomas Saerbeck, Asma Qdemat   +14 more
wiley   +1 more source

Neuromorphic Visual Receptive Field Hardware with Vertically Integrated Indium‐Gallium‐Zinc‐Oxide Optoelectronic Memristors over Silicon Neuron Transistors

Advanced Materials, EarlyView.
This work proposes neuromorphic visual receptive field hardware with vertically integrated amorphous In‐Ga‐Zn‐O optoelectronic memristors and Si neuron transistors for retina‐inspired visual processing. The visual receptive field array, comprising ON‐ and OFF‐type cells, facilitates edge detection, thereby enhancing perception in complex images, such ...
Hyun Wook Kim, Jin Hong Kim, Dong Hoon Shin, Min Chung Jung, Tae Won Park, Hyung Jun Park, Joon‐Kyu Han, Cheol Seong Hwang   +7 more
wiley   +1 more source

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On the Mathematical Structure of Thermodynamics with Internal Variables

Journal of Non-Equilibrium Thermodynamics, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
CIMMELLI V. A., ROGOLINO, Patrizia
openaire   +4 more sources

A mathematical model of OECTs with variable internal geometry

Sensors and Actuators A: Physical, 2020
Organic Electrochemical Transistor (OECTs) are devices that can measure the ionic content of liquid samples and biological systems. The response of an OECT can provide information on the physiological conditions and characteristics of a biological system.
Gentile F, Vurro F, Picelli F, Bettelli M, Zappettini A, Coppede N   +5 more
openaire   +4 more sources

Variables in Mathematics Education [PDF]

, 2011
This paper suggests that consistently referring to variables as placeholders is an effective countermeasure for addressing a number of the difficulties students' encounter in learning mathematics. The suggestion is supported by examples discussing ways in which variables are used to express unknown quantities, define functions and express other ...
openaire   +1 more source

Variables in Elementary Mathematics Education

The Elementary School Journal, 2016
AbstractIn this article, I analyze episodes from two third-grade classrooms drawn from a larger classroom teaching experiment to explore how these students began to incorporate nonnumerical symbols in their mathematical expressions when asked to represent indeterminate quantities.
openaire   +2 more sources