Results 81 to 90 of about 16,629 (343)

A 2D ultrasonic array design incorporating hexagonal-shaped elements for NDE applications [PDF]

open access: yes, 2010
Contemporary 2D Ultrasonic arrays suffer from low SNR and limited steering capabilities. Yet, there is a great desire in the industry to increase the operational frequency, in order to enhance their volumetric imaging resolution.
Dziewierz, J.   +4 more
core   +1 more source

High‐Throughput Exfoliation of Optoelectronic‐Grade MoS2 via Turbulent‐Flow Wet Jet Milling

open access: yesAdvanced Functional Materials, EarlyView.
A scalable wet jet milling exfoliation method is demonstrated for producing optoelectronic‐grade MoS2 nanosheets using environmentally friendly ethyl cellulose in ethanol dispersion media. Guided by fluid dynamics modeling, this approach is optimized to achieve record‐high exfoliation throughput and concentration.
Maryam Khalaj   +7 more
wiley   +1 more source

Effect of the ultrasonic phased array on defect detection of HDPE electro-fusion joint [PDF]

open access: diamond, 2023
Qiang Li   +4 more
openalex   +1 more source

Cyclic Olefin Copolymers as Versatile Materials for Advanced Engineering Applications

open access: yesAdvanced Functional Materials, EarlyView.
Cyclic olefin copolymers (COCs) are presented as highly versatile materials combining tunable synthesis, excellent optical properties, and mechanical robustness. Their potential spans microfluidics, bioengineering, and advanced electronics, while emerging self‐healing and sustainable solutions highlight future opportunities.
Giulia Fredi   +3 more
wiley   +1 more source

Metascreen-Based Acoustic Passive Phased Array [PDF]

open access: yes, 2015
Conventional phased arrays require a large number of sources in forming a complex wave front, resulting in complexity and a high cost to operate the individual sources.
Cheng, Jian-chun   +4 more
core   +1 more source

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

open access: yesAdvanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen   +15 more
wiley   +1 more source

Применение алгоритма расчета в частотной области для ультразвуковой томографии с использованием матричных фазированных решеток в производстве деталей и машин [PDF]

open access: yes, 2018
Повышение достоверности результатов эхо-метода ультразвукового контроля является одним из важнейших направлений развития данного вида дефектоскопии, который широко применяется в машиностроении.
Долматов, Дмитрий Олегович   +1 more
core  

FPGA-Based Control System of an Ultrasonic Phased Array

open access: yesStrojniški vestnik – Journal of Mechanical Engineering, 2011
One of the main features of ultrasonic phased arrays is the ability to create an ultrasonic focused beam by applying time-delayed signals to each one of the elements of the array. If the focused beam can sweep a certain area it is possible to obtain a B-scan image. This process is called beamforming.
Santos, Jaime Batista dos   +1 more
openaire   +2 more sources

Integrated Field‐Free SOT Domain‐Wall Synapses and MTJ Stochastic Neurons for Hardware Boltzmann Machines

open access: yesAdvanced Functional Materials, EarlyView.
Field‐free spin‐orbit torque domain‐wall synapses integrated with stochastic MTJ neurons enable compact hardware Boltzmann machines. Leveraging intrinsic stochasticity and multi‐level conductance, the system achieves efficient probabilistic learning with high accuracy, demonstrating a scalable spintronic platform for energy‐efficient edge AI.
Aijaz H. Lone   +8 more
wiley   +1 more source

TESTING RESEARCH ON PHASED ARRAY ULTRASONIC OF FILLET WELD OF RAPID-COOLING HEAT EXCHANGER

open access: yesJixie qiangdu, 2017
It is important for related equipment in the safe and stable performance that the integrality quality of the fillet welds of rapid-cooling heat exchanger.
OU XuSheng, QI LingMin, HAN TaiKun
doaj  

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