Results 81 to 90 of about 2,975,863 (286)

Transient Cytoskeletal Anisotropy Encodes Short‐Term Mechanical Memory in Glioblastoma Cells

Advanced Materials, EarlyView.
The same mechanical deformation can produce distinct cytoskeletal states depending on loading history. Experiments and constitutive modeling reveal that transient actin–vimentin anisotropy stores mechanical information and governs short‐term mechanical memory in glioblastoma cells.
Clara Gomez‐Cruz, Matthieu Gelin, Lucas Pradeau‐Phélut, Arrate Muñoz‐Barrutia, Sandrine Etienne‐Manneville, Daniel Garcia‐Gonzalez   +5 more
wiley   +1 more source

Design Guidelines of Stacked Dual-Band SIW Slot Array With Optimal Aperture Reuse Ratio and High Aperture Efficiency

IEEE Open Journal of Antennas and Propagation
With the advent of Internet of Things (IoT) technology, intelligent devices have greatly enhanced people’s daily lives by providing greater convenience, efficiency, and connectivity.
Yihong Su, Yulei Yang, Xian Qi Lin, Yong Fan   +3 more
doaj   +1 more source

An Analytical Study of the Diffraction of Light by a Circular Aperture Using Spherical Harmonics for n≤1

International Journal of Optics, 2020
Based on the importance of spherical harmonics and their applicability in many physical problems, this research aimed to study the diffraction pattern of light by a circular aperture starting from the first Rayleigh–Sommerfeld diffraction equation and to
Mahmoud Ahmad, Najah Kabalan, Samar Omran   +2 more
doaj   +1 more source

Elastomeric 3D‐Printed Microenvironments Enable Nanonewton Force Measurements in Healthy and Diseased Human Pluripotent Stem Cell‐Derived Neuroepithelial Cells

Advanced Materials, EarlyView.
We present elastomeric three‐dimensional (3D) microstructures fabricated via two‐photon polymerization (2PP) and post‐processed through wet etching, for quantifying nanonewton (nN)‐scale forces applied by healthy and diseased neural cells. The mechanically characterized free‐standing beam architectures enable measurement of traction forces of ...
Pieter F. J. van Altena, Lucia Castillo Ransanz, Ruben H. Guis, Giulia Bergamaschi, Nanne J. Paauw, Urs Staufer, Vivi M. Heine, Angelo Accardo   +7 more
wiley   +1 more source

Nonlinear Optical Characteristics of Crystal VioletDye Doped Polystyrene Films by Using Z-Scan Technique

Al-Mustansiriyah Journal of Science, 2017
Z-scan technique was employed to study the nonlinear optical properties (nonlinear refractive index and nonlinear absorption coefficient) for crystal violet doped polystyrene films as a function of doping ratio in chloroform solvent.
Mahasin F. Hadi, Eman Mohi Alwaan, Wafaa Hameed Abass   +2 more
doaj   +1 more source

Investigation of transformers' turn ratios and design procedure for an aperture coupled slot antenna

Active RF Devices, Circuits and Systems Seminar, 2011
An aperture coupled antenna consists of feed, slot, and a radiation patch. The feed is normally a microstrip line with the slot etched in the ground plane and the radiating patch is located above the ground plane. To obtain maximum power transfer the microstrip line is orientated at right angle to the slot to obtain tight coupling. It is shown by Pozar
Liu, Lei, Ghassemlooy, Zabih, Sambell, Alistair, Danaher, Sean, Lu, Qing, Korolkiewicz, Edward   +5 more
openaire   +2 more sources

Breaking the Surface: Buoyant Metal–Polymer Open–Cell Hybrid Lattice Metamaterials

Advanced Materials, EarlyView.
Open‐cell metal–polymer lattice metamaterials that defy sinking. (a) Injection process of the polyurethane (PU) foam into the titanium (Ti‐6Al‐4V) hollow‐strut lattice creating the open‐cell Ti‐6Al‐4V+PU hybrid lattice, (b) flotation test of a hybrid lattice specimen, and (c) a digital representation and experimental validation of a marine buoy ...
Jordan Noronha, Joey Tallon, Raad Omar, Jason Dash, Andrey Molotnikov, Martin Leary, Milan Brandt, Ma Qian   +7 more
wiley   +1 more source

Defect‐Templated Phase Engineering in Atomically Thin Metals

Advanced Materials, EarlyView.
Graphene defects are transformed from passive imperfections into programmable templates for phase‐selective growth of atomically thin silver. Plasma‐generated boundary defects favor Ag(1), whereas sp3‐rich zero‐layer graphene promotes Ag(2). This defect‐directed intercalation links local graphene chemistry to crystalline phase, electronic structure ...
Arpit Jain, Boyang Zheng, Sawani Datta, Kanchan Ulman, Jakob Henz, Matthew Wei‐Jun Liu, Van Dong Pham, Wen He, Chengye Dong, Li‐Syuan Lu, Alexander Vera, Nader Sawtarie, Wesley Auker, Ke Wang, Bob Hengstebeck, Zachary W. Henshaw, Shreya Mathela, Maxwell Wetherington, William H. Blades, Kenneth Knappenberger, Ursula Wurstbauer, Su Ying Quek, Ulrich Starke, Shengxi Huang, Vincent H. Crespi, Joshua A. Robinson   +25 more
wiley   +1 more source

Exploring Wavefront Detection in Imaging Systems with Rectangular Apertures Using Phase Diversity

Sensors
The attainment of a substantial aperture in the rotating synthetic aperture imaging system involves the rotation of a slender rectangular primary mirror. This constitutes a pivotal avenue of exploration in space telescope research.
Yibo Li, Jiang Guo, Rengcong Liu
doaj   +1 more source

Influence of diffraction by a rectangular aperture on the aspect ratio of femtosecond direct-write waveguides

Optics Express, 2005
Rectangular apertures have been used as a simple means to approximate elliptical Gaussian beams in femtosecond direct writing systems to correct for the elongated focus inherent in low numerical aperture (NA) systems. In this work it is recognized that the rectangular aperture, more accurately functions as a diffractive element and hence redistributes ...
K, Moh, Y, Tan, X-C, Yuan, D, Low, Z, Li
openaire   +2 more sources