Results 71 to 80 of about 1,108,813 (211)

Technical Note:Hydrogen Induced Delayed Cracking of Smooth Torsional Specimens

open access: yes, 1984
Results are presented of a study showing that for charged Type III cracked or notched specimens of ultrahigh strength steel, hydrogen induced delayed cracking could occur along the planes inclined minus 45 degree to the original notch plane after ...
Tong-Yi Zhang   +5 more
core   +1 more source

Fluorene‐based blue emitters: On the path to electrically pumped organic lasers

open access: yesFlexMat, EarlyView.
Electrically pumped efficient operation remains unrealized, a major challenge in optoelectronics. Fluorene‐based blue‐emitting semiconductors are promising gain media, thanks to their structural tunability and favorable emission properties. This review summarizes recent advances, highlights their reliability and versatility in lasing, and outlines key ...
Yong Yan   +7 more
wiley   +1 more source

Body‐integrated photonic biosensors: Illuminating the path to active healthcare

open access: yesFlexMat, EarlyView.
Body‐integrated photonic biosensors are promising tools for active healthcare. These optical devices can be worn, implanted, or swallowed to monitor health signals continuously. This review introduces key sensing modalities, including fluorescence, colorimetry, SPR, LSPR, SERS, and light‐modulating materials.
Jiayue Gu   +10 more
wiley   +1 more source

Fabrication of flexible composite electrodes and their application in flexible supercapacitors for wearable electronic devices

open access: yesFlexMat, EarlyView.
This review surveys current progress in composite flexible electrodes for flexible supercapacitors, emphasizing how structural engineering and material synergy enhance both mechanical compliance and electrochemical performance. It discusses fabrication strategies, emerging application scenarios, and ongoing challenges, offering updated insights that ...
Weikang Wang   +9 more
wiley   +1 more source

Flexible photocatalytic materials: From substrate engineering to multi‐field synergistic enhancement

open access: yesFlexMat, EarlyView.
This review examines flexible photocatalytic systems, covering substrate evolution from polymers to biomass, fabrication methods like electrospinning, and key mechanical and optoelectrochemical metrics under deformation. Enhancement strategies are critically discussed, followed by applications in energy conversion, environmental remediation, and ...
Weiqi Wang   +3 more
wiley   +1 more source

Probabilistic Analysis of Cracking Moment of Reinforced Concrete Beams

open access: yes, 1989
Probabilistic analysis of cracking moment from 22 simply supported reinforced concrete beams is performed. When the basic variables follow the distribution considered in this study, the cracking moment of a beam is found to follow a normal distribution ...
Rao, Balaji K, Desayi, Prakash
core  

Wearable photovoltaic textiles: From device technologies to long‐term reliability

open access: yesInfoScience, EarlyView.
Wearable photovoltaic textiles are highlighted as reliable energy sources that combine solar cell efficiency with hierarchical textile‐specific mechanical and environmental durability. Structural and encapsulation strategies, including planarization, neutral‐axis engineering, and advanced barrier designs, enable waterproofing, washability, UV shielding,
Eun Gyo Jeong   +5 more
wiley   +1 more source

Temperature–strain decoupled electronic skin for human–machine interaction

open access: yesInfoMat, EarlyView.
Temperature fluctuations can cause signal drift in wearable strain sensors, interfering with human‐motion monitoring. This study integrates a serpentine strain sensor with a miniature thermistor and uses a temperature–strain calibration model to compensate for temperature‐induced resistance changes in real time, suppressing thermal drift while ...
Miao Kong   +19 more
wiley   +1 more source

Torsional vibration analysis of automotive drivelines [PDF]

open access: yes, 1997
One of the most important source of noise and vibrations associated with vehicles is the vibration of driveline systems. Such phenomena are subjectively associated with customer complaints.
Rabeih, El-Adl Mohammed Aly
core   +2 more sources

Analysis of Mechanical‐Electrical‐Hydraulic Coupled Vibration Response Characteristics of Thermal Control Circulating Pumps Supported by Water‐Lubricated Bearings

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The operational reliability of thermal control circulation pumps is significantly restricted by the multi‐physics coupled environment. To reveal the vibration transmission mechanisms and dynamic response characteristics under multi‐field coupled excitations, a multi‐DOF coupled dynamic representation of the overall system, incorporating the ...
Jianfeng Luo   +4 more
wiley   +1 more source

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