Results 11 to 20 of about 253,612 (287)

Analysis of operating conditions of heavy-loaded and heat-stressed friction units of powerful internal combustion engines and development of copper nanocomposite powder materials for them [PDF]

open access: yesMATEC Web of Conferences, 2019
The article provides analysis of operating conditions for the «valve – valve guide» heavy-loaded and heat-stressed friction unit of the gas distribution mechanism of powerful internal combustion engines and establishes requirements to materials for valve
Shalunov Evgeny   +2 more
doaj   +1 more source

Unveiling the Molecular Origin of Vapor-Liquid Phase Transition of Bulk and Confined Fluids

open access: yesMolecules, 2022
At temperatures below the critical temperature, discontinuities in the isotherms are one critical issue in the design and construction of separation units, affecting the level of confidence for a prediction of vapor–liquid equilibriums and phase ...
Sorrasit Jitmitsumphan   +9 more
doaj   +1 more source

Superconducting HfO2-YBa2Cu3O7-δ nanocomposite films deposited using ink-jet printing of colloidal solutions [PDF]

open access: yes, 2019
To reduce the fabrication costs while maximizing the superconducting and pinning properties of YBa2Cu3O7−δ (YBCO) nanocomposite films, the drop-on-demand ink-jet printing technique was used to deposit colloidal YBCO inks onto LaAlO3 substrates.
Cayado, Pablo   +10 more
core   +2 more sources

Design, pultrusion manufacturing, characterization, and reliability testing of a novel PMMA-based glass FRP composite material

open access: yesTransportation Engineering, 2022
Thermosetting resins have a limited ability to absorb impacting energy and deform in the transversal direction. Thermoplastics, on the other hand, are reformable meaning their shape can be modified after the polymerization process has occurred.
Christopher D. Mackin, Gobinda C. Saha
doaj   +1 more source

Nanocomposites and methods for synthesis and use thereof [PDF]

open access: yes, 2009
Nanocomposite compositions and methods of synthesis of the compositions are described. In particular, liquid crystal-functionalized nanoparticles, liquid crystal-templated nanoparticles, nanocomposite compositions including the nanoparticles, and ...
Furman, Benjamin R.   +3 more
core   +1 more source

A Carbocation Substituted Clay and its Styrene nanocomposite [PDF]

open access: yes, 2004
A substituted tropylium ion can be ion-exchanged onto montmorillonite to give a novel organically-modified clay. One can prepare a polystyrene nanocomposite of this clay by emulsion, but not bulk, polymerization.
Wilkie, Charles A., Zhang, Jinguo
core   +2 more sources

Coordination Engineering of Ultra‐Uniform Ruthenium Nanoclusters as Efficient Multifunctional Catalysts for Zinc–Air Batteries

open access: yesSmall Science, 2022
The lack of highly efficient, inexpensive catalysts severely hinders the large‐scale application of electrochemical energy conversion technologies (e.g., electrochemical hydrogen evolution reaction (HER) for hydrogen production, metal–air batteries ...
Yingying Guo   +9 more
doaj   +1 more source

Development of Nanocomposite Powders for the SLS Process to Enhance Mechanical Properties [PDF]

open access: yes, 2007
In an effort to fabricate prototypes with improved mechanical properties in the dual laser sintering process, functionalized graphite nanoplatelets were added to the PA-12 powder to produce a nanocomposite powder.
Bae, Sung Woo   +4 more
core   +1 more source

Conductive Metal-Organic Frameworks for Amperometric Sensing of Paracetamol

open access: yesFrontiers in Chemistry, 2020
An electrochemical sensor for paracetamol is executed by using conductive MOF (NiCu-CAT), which is synthesized by 2, 3, 6, 7, 10, 11-hexahydroxytriphenylene (HHTP) ligand.
Jing Wang   +7 more
doaj   +1 more source

Highly basic and active ZnO–x% K2O nanocomposite catalysts for the production of methyl ethyl ketone biofuel

open access: yesEnergy Science & Engineering, 2022
Herein we demonstrate the preparation and characterization of nanocrystalline ZnO, either pure or promoted with 1–10 wt.% K2O. All catalysts calcined at 400°C were in the nano‐crystallite scale as confirmed by X‐ray powder diffraction analysis in the 22 ...
Samih A. Halawy   +2 more
doaj   +1 more source

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