Results 81 to 90 of about 20,755 (235)

Maximum Height to Width Ratio of Freestanding Structures Built Using Ultrasonic Consolidation [PDF]

open access: yes, 2006
Ultrasonic consolidation (UC) is a process whereby metal foils can be metallurgically bonded at or near room temperature. The UC process works by inducing high-speed differential motion (~20kHz) between a newly deposited layer and a substrate (which ...
Janaki Ram, G. D.   +5 more
core   +1 more source

Experimental Factors and Techniques for Pool Boiling Heat Transfer Enhancement: A Critical Review

open access: yesHeat Transfer, EarlyView.
ABSTRACT This review presents a comprehensive assessment of active strategies for enhancing pool boiling heat transfer, with a focus on techniques that do not rely solely on the boiling surface modification. It examines a broad range of methodologies including fluid additives, external fields, mechanical interventions, and thermal‐geometric tuning that
José E. Pereira   +2 more
wiley   +1 more source

Research on Microstructure and Mechanical Properties of Ultrasonic-Assisted Gas Metal Arc Welding Additive Manufacturing with High-Nitrogen Steel Welding Wire

open access: yesMetals
High-nitrogen steels (HNSs) are valued for their superior mechanical strength and corrosion resistance, making them ideal for high-end industrial applications.
Jiawen Luo   +3 more
doaj   +1 more source

Drill Tools for Earth and space design of a novel longitudinal-torsional ultrasonic transducer [PDF]

open access: yes, 2012
Measurement of complex combinations of different vibration modes operating together at ultrasonic frequencies can be carried out using 3-D laser ...
Al-Budairi, Hassan   +2 more
core  

Solder‐free room‐temperature multichannel integration for soft hybrid electronics

open access: yesInfoMat, EarlyView.
A room‐temperature direct interconnection (RTDI) technique enables solder‐free, stretchable bonding of multichannel soft–rigid interfaces via hydrogen bonding and molecular entanglement. It achieves 24.7× stronger mechanical bonding than conventional methods and maintains resistance variation within one order of magnitude at 110% strain.
Junchang Wang   +13 more
wiley   +1 more source

Ultrasonic dissimilar joining of aluminum alloy and polymer with the composite material of ABS polymer doping carbonized rice husk

open access: yesMATEC Web of Conferences, 2017
The metal housing is typically jointed with plastic fittings by conventional gluing method or embedding injection molding to produce this type of devices. We propose to improve this new technique with more practical approach.
Cheng Chin-Pao   +3 more
doaj   +1 more source

Hermetic edge sealing of photovoltaic modules [PDF]

open access: yes
The feasibility of using an electrostatic bonding (ESB) and ultrasonic welding process to produce hermetic edge seals on terrestrial solar cell modules was investigated.
Nowlan, M. J.
core   +1 more source

Occupational Exposure to Factory‐Derived Particulate Matter 2.5 Induces Cutaneous Toxicity in Workers and HaCaT Keratinocytes Through Oxidative Stress and Inflammation

open access: yesJournal of Applied Toxicology, EarlyView.
ABSTRACT This study aimed to evaluate the toxicological effects of occupational exposure to factory‐derived particulate matter (PM2.5) on human skin, emphasizing its role as a potential target organ of environmental toxicants. An epidemiological survey comparing factory and nonfactory workers was conducted by assessing their skin elasticity and color ...
Miku Tanaka   +7 more
wiley   +1 more source

Optical Coherence Tomography for High‐Precision Industrial Inspection in Industry 4.0: Advances, Challenges, and Future Trends

open access: yesLaser &Photonics Reviews, EarlyView.
This review examines how optical coherence tomography transforms industrial inspection by delivering real‐time, micrometer‐resolution, depth‐resolved imaging. It surveys applications across display manufacturing, thin films, microelectronics, laser processing, and coatings, evaluates performance against conventional techniques, and highlights emerging ...
Nipun Shantha Kahatapitiya   +7 more
wiley   +1 more source

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