Results 101 to 110 of about 3,003,880 (282)

Investigation of Laser Ablation and Brush Pre‐Treatments for AlCu Cold Roll Bonding in Oxygen‐Free Conditions

open access: yesAdvanced Engineering Materials, EarlyView.
It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti   +11 more
wiley   +1 more source

Mobile "fresh air" air-conditioner: optimal location and temperature setting

open access: yes上海师范大学学报. 自然科学版
With the rapid development of technology and people's pursuit of comfortable life, mobile"fresh air"air-conditioner as a flexible and efficient indoor environment conditioning equipment was increasingly favored.
WAN Weiqi   +5 more
doaj   +1 more source

Effect of increased fuel temperature on emissions of oxides of nitrogen from a gas turbine combustor burning natural gas [PDF]

open access: yes
An annular gas turbine combustor was tested with heated natural gas fuel to determine the effect of increasing fuel temperature on the formation of oxides of nitrogen. Fuel temperatures ranged from ambient to 800 K (980 F).
Marchionna, N. R.
core   +1 more source

Hydrogen eliminator [PDF]

open access: yes, 1972
Vented hydrogen is converted into water by mixing hydrogen with sufficient air to ensure that a flame cannot be maintained and then passing it through a reactor containing palladium catalyst; reaction takes place at relatively low temperature. Device may
Kiraly, R. J.
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

Numerical Simulation on the Influence of Air Supply Parameters on Temperature Field in the Core Freezer

open access: yesZhileng xuebao, 2022
To optimize the uniformity of the temperature field distribution inside the core freezer and control the temperature fluctuation range, a test rig of core model and a three-dimensional RNG k-ε turbulence model were built based on the similarity principle
Liu Zeqin, Yu Yongjie, Li Jie
doaj  

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

Simulating sunflower canopy temperatures to infer root-zone soil water potential [PDF]

open access: yes
A soil-plant-atmosphere model for sunflower (Helianthus annuus L.), together with clear sky weather data for several days, is used to study the relationship between canopy temperature and root-zone soil water potential.
Choudhury, B. J., Idso, S. B.
core   +1 more source

The effect of favourable and unfavourable frost on air cooling coil performance : a thesis presented in partial fulfilment of the requirements for the degree of Master of Technology, at Massey University [PDF]

open access: yes, 1994
The most common type of air cooling coil used in the refrigeration industry is the finned tube heat exchanger. The performance of such coils can be greatly hindered by frost formation, which will occur when the coil surface temperature is both below the ...
O'Hagan, Anthony Noel
core  

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

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