Results 91 to 100 of about 1,113,963 (297)

Cu-Based Nanosheet Arrays for Water-Splitting

open access: yes, 2019
Cu-based electrocatalysts for overall water splitting are less reported. Room-temperature synthesis of cost-effective Cu electrodes to replace precious catalysts remains a great challenge.
Qiangchun Liu (2387308)   +5 more
core   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

CU Tenancingo invita al Diplomado en Enología

open access: yes
CU Tenancingo invita al Diplomado en ...
CU, TENANCINGO
core   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie   +4 more
wiley   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann   +3 more
wiley   +1 more source

Estimación y modelación de emisiones de calderas de una comercializadora de combustibles

open access: yesTecnociencia Chihuahua
En el proceso de comercialización de combustibles, una de las fuentes de emisión de contaminantes  (continuas y discontinuas) proviene de la combustión derivada de la generación de electricidad y calor, venteo y quema de hidrocarburos y emisiones ...
Lester Rivas Trasancos   +3 more
doaj   +1 more source

Adsorption of Cu(II) from Aqueous Solution on Fly Ash Based Linde F (K) Zeolite [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2014
The work focuses on the removing of Cu(II) from aqueous solution by Linde F(K) zeolite. The zeolite is synthesized from fly ash by hydrothermal process. The adsorption experiments discuss several factors including the optimal solution pH, zeolite dosage,
Chen Chen   +3 more
doaj  

Bioavailability of Cu and Zn in raw and anaerobically digested pig slurry [PDF]

open access: yes, 2009
The impact of anaerobic digestion on the bioavailability of copper and zinc from pig slurry was assessed. Both chemical and biological approaches were used independently on raw slurry (RS) and anaerobically digested pig slurry (DS).
Marcato, Claire-Emmanuelle   +4 more
core   +1 more source

Cu-Catalyzed Synthesis of Benzoxazole with Phenol and Cyclic Oxime

open access: yes, 2021
A Cu-catalyzed straightforward synthesis of benzoxazoles from free phenols and cyclic oxime esters is reported. The mild reaction conditions tolerate various electron-withdrawing and electron-donating functional groups on both substrates, affording ...
Dong-Hui Wang   +3 more
core   +1 more source

Effect of Oxygen Content on Surface and Subsurface Integrity During Turning of Ti–6Al–4V

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how oxygen content in the ambient atmosphere affects the surface and subsurface properties of Ti–6Al–4V during turning. Results show that oxygen does not influence surface roughness. However, machining in an extremely high vacuum‐adequate atmosphere increases surface hardness by up to 7.8% and induces compressive residual stresses ...
Benjamin Bergmann   +3 more
wiley   +1 more source

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