Results 121 to 130 of about 9,331 (329)

Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Hybrid-Integrated Multi-Lines Optical-Phased-Array Chip

Photonics
We propose a hybrid-integrated III–V-silicon optical-phased-array (OPA) based on passive alignment flip–chip bonding technology and provide new solutions for LiDAR.
Shengmin Zhou, Mingjin Wang, Jingxuan Chen, Zhaozheng Yi, Jiahao Si, Wanhua Zheng   +5 more
doaj   +1 more source

Application of conformal map theory for design of 2-D ultrasonic array structure for ndt imaging application : a feasibility study

, 2014
Two-dimensional ultrasonic phased arrays are becoming increasingly popular in nondestructive evaluation (NDE). Sparse array element configurations are required to fully exploit the potential benefits of 2-D phased arrays. This paper applies the conformal
Ramadas, Sivaram Nishal, Gachagan, Anthony, Dziewierz, Jerzy, Jackson, Joseph, O'Leary, Richard   +4 more
core   +1 more source

Phased-array-antenna control using liquid crystals [PDF]

, 1993
A novel optical control system using nematic liquid crystals and acoustooptic devices is introduced that can provide compact, lightweight, low cost, transmit/receive mode, high performance (greater than 8 bits), truly analog, amplitude and phase control ...
Riza, Nabeel A., Nabeel A. Riza
core   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

Design of a Ka-band Wideband Multibeam Phased Array

Guangtongxin yanjiu
【Objective】The world has entered the era of 5th Generation Mobile Communication Technology (5G) and satellite Internet, and the demand for communication speed and capacity in various fields has surged, while the application of traditional parabolic and ...
GUAN Jin, SUN Jie, XING Chen, LIAO Yi, LI Yi   +4 more
doaj  

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

Advanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi, Dirk Wulferding, Amit Pawbake, Clément Faugeras, Sivasakthi Kuppusamy, Raman Sankar, Gichan Son, Jeongwoo Kim, Kwang‐Yong Choi   +8 more
wiley   +1 more source

Modular Polarization-Engineered Optical Phased Arrays for Optical Wireless Indoor Networks

IEEE Open Journal of the Communications Society
The growing passion for indoor optical wireless networks reflects their immense capability to deliver consistent high-quality data connectivity across diverse indoor environments.
Sharadhi Gunathilake, Ampalavanapillai Nirmalathas, Kosala Herath, Malin Premaratne   +3 more
doaj   +1 more source

1-D Beam Steering with Fiber-type Optical Phased Array

, 2008
A 1x4 and a 1 x6 fiber-type optical phased array with PZT phase shifters have been implemented respectively. Fibers are adopted as transmission paths and emitting antenna in the optical phased array system.
Hu, Weiwei, Xu, Anshi, Yanyun Yang, Fang, Ao, Ao Fang, Anshi Xu, Yang, Yanyun, Xiaozhou Yang, Weiwei Hu, Yang, Xiaozhou   +9 more
core   +1 more source

On the Design of Unconventional Optical Phased Array Antennas

, 2023
The design of unconventional optical phased array architectures suitable for implementation within photonic integrated circuits, is addressed. Starting from a set of free-space-optics beam pattern requirements, thinned array layouts are optimized using a
Anselmi N., Melloni A., Morichetti F., Massa A., Rocca P.   +4 more
core   +1 more source