Results 91 to 100 of about 7,916,252 (231)

Derivation of forces acting on the liquid weld metal based on arc pressure measurements produced using alternating shielding gases in the GTAW process [PDF]

open access: yes, 2013
As part of an ongoing process to fully evaluate the effects of an alternating shielding gas supply on the gas tungsten arc and gas metal arc welding processes, a comparison between arc pressures produced using argon, helium, alternating gases and GTAW-P ...
Campbell, Stuart   +2 more
core   +2 more sources

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Application and research on temperature performance of electrolyte based on special insulating glaze

open access: yesAIP Advances
Capacitance measurement technology has been extensively used in various industries, including petroleum, chemical, electric power, medical, and food, owing to its simple structure, low cost, and accurate measurements.
Wenhui Feng   +9 more
doaj   +1 more source

Historical trajectory, current status, and future challenges of powder engines and propellant supply technologies: A comprehensive review

open access: yesDefence Technology
Powder engine as a novel type of engine using high-energy metal powder as fuel and gas, liquid, or solid as oxidizer. These engines exhibit remarkable adaptability, flexible thrust regulation, and multi-pulse start-stop, which have significant ...
Guanlong Ren   +7 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Flow Resistance of Metallic Screens in Liquid, Gaseous and Cryogenic Flow [PDF]

open access: yes, 2013
Fine metallic screens are important sub-systems in propellant tank systems of spacecrafts due to their application as filter devices. The flow resistance has to be known for a proper design of tank and feed line systems.
Gerstmann, Jens   +2 more
core  

Research on Small-scale Neutron Detection Technology of Deposition Source Term for Dry Reprocessing Pipeline

open access: yesYuanzineng kexue jishu
In accordance with China’s “three-step” strategy for nuclear energy development, establishing mature commercial fast reactors and fast reactor spent fuel reprocessing technology is a must for the “second step” of China’s nuclear energy development.
GUO Luzhen, WANG Chuangao, WANG Ying, GUO Jinsen, PANG Hongchao, LUO Zhiping
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

Wetting Characteristics of Alkali Metal Sodium on Wire Mesh Wicks in High-temperature Heat Pipes

open access: yesYuanzineng kexue jishu
With their compact structure, high reliability, and inherent safety, heat pipe reactors demonstrate significant potential in energy supply for deep-space, deep-sea, and remote island applications.
TANG Songsheng1, GUO Kailun1, TIAN Shiyu1, SUN Qishi1, WANG Mingjun1, ZHANG Dalin1, WANG Chenglong1, MA Yugao2, TIAN Wenxi1, QIU Suizheng1
doaj   +1 more source

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