Results 61 to 70 of about 1,669,789 (163)

Efficient Solar‐Driven Interfacial Steam‐Electricity Co‐Generation by Modular Design of CAU‐23/Graphene Hybrid Evaporator

open access: yesCarbon Energy, EarlyView.
A dual‐functional evaporator based on CAU‐23/graphene hybrid is acquired through a modular design strategy. Owing to superior broadband light absorption, optimal wettability, and porous architecture that synergistically integrates nanoconfined ionic channels with photothermal conversion, it exhibits a high evaporation rate of 2.71 kg m−2 h−1 with the ...
Hangyuan Du   +8 more
wiley   +1 more source

Design, and characterisation of impact based and non-contact piezoelectric harvesters for rotating objects

open access: yes, 2010
This thesis highlights two different methods of extracting electrical energy from rotational forces using impact based and non-contact based piezoelectric harvesters.
Manla, Ghaithaa
core   +1 more source

Localized 3D acoustic streaming in microdroplets using high‐frequency micro‐beam IDTs

open access: yesDroplet, EarlyView.
Miniaturized 160 MHz acoustic microbeam transducers, with a size much smaller than droplets, enable precise localized actuation, generating complex three‐dimensional streaming and tunable particle aggregation. This concept provides high‐resolution, non‐contact fluid manipulation for biosensing, lab‐on‐chip diagnostics, and targeted drug screening ...
D. Sánchez‐Saldaña   +2 more
wiley   +1 more source

Effects of hybrid metal oxide nanoparticles on the tribological and emission attributes of algae‐derived biofuel in compression ignition engines

open access: yesEnvironmental Progress &Sustainable Energy, EarlyView.
Abstract The growing demand for sustainable fuels has accelerated the development of algae‐derived biodiesel for compression‐ignition engines. In this study, Chlorella vulgaris methyl ester (AME) exhibited physicochemical properties comparable to diesel and satisfied ASTM D6751 fuel quality requirements, making it suitable for blending.
T. Jayakumar   +3 more
wiley   +1 more source

Overview of Sample Delivery Methods for Serial Crystallography

open access: yesShengwu huaxue yu shengwu wuli jinzhan
The sample delivery method is one of the key steps in implementing serial femtosecond crystallography research using X-ray free-electron lasers. Serial femtosecond crystallography can effectively capture the ultrafast dynamic processes of biological ...
LI Ling-Hao, LI Bing, WENG Tsu-Chien
doaj   +1 more source

Structural design and 3D printing of flexible integrated electronic systems

open access: yesFlexMat, EarlyView.
This review provides a comprehensive overview of design and integration strategies for individual components in flexible electronics, highlights the 3D‐printing fabrication techniques, and discusses recent advances in system‐level integration and their applications in real‐time monitoring and intelligent robotics.
Jiani Gong   +8 more
wiley   +1 more source

Research of flexible plum-shaped guided wave transducer circular array for damage detection of plate metal

open access: yesAIP Advances
Ultrasonic guided wave transducers have become a key technology in the field of structural health monitoring due to their broad detection range and high sensitivity.
Jiazhen Zhang   +5 more
doaj   +1 more source

A piezoelectric microvalve for compact high frequency high differential pressure micropumping systems

open access: yes, 2003
A piezoelectrically driven hydraulic amplification microvalve for use in compact high-performance hydraulic pumping systems was designed, fabricated, and experimentally characterized. High-frequency, high-force actuation capabilities were enabled through
Steyn, J.L.   +6 more
core   +1 more source

Artificial structures for human‐machine interfaces with closed‐loop interaction

open access: yesFlexMat, EarlyView.
Artificial structures bridge sensing and feedback in closed‐loop human‐machine interfaces by providing geometry‐enabled mechanical and functional programmability. This review maps the role of artificial structures in diverse sensing modalities and feedback strategies, and illustrates their integration into closed‐loop interaction systems, highlighting ...
Taiqi Hu   +4 more
wiley   +1 more source

Analysis and Research on Jetting Ability of the Jet Dispensing Valve Driven by a Piezostack

open access: yes工程科学与技术, 2013
:A new kind of jetting valve driven by the piezo-stack using its quick response and good output properties was presented.The jetting valve was comprised of piezo-stack,flexible lever beam,needle and nozzle.The force of adhesive when jetting was analyzed ...
焦晓阳   +4 more
doaj  

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