Results 151 to 160 of about 194,559 (288)

Effect of melt tip taper angle on atomization process in gas atomization

open access: yesFenmo yejin jishu
Atomizing nozzle is the core component of the gas atomization process, which structural parameters, especially the melt tip taper angle of the delivery tube, have the great impact on the gas atomization results.
YANG Shu   +4 more
doaj   +1 more source

Effects of Liquid Transpiration Cooling on Heat Transfer to the Diverging Region of a Porous-Walled Nozzle [PDF]

open access: yes, 1997
This research effort investigated the effects of evaporation of water on the heat transferred to the wall of the diverging portion of a porous walled nozzle The AFIT High Pressure Shock Tube was used with a two-dimensional Mach 3 nozzle. One flat surface
Schieb, Daniel J.
core   +1 more source

Modified Oxymethylene Ethers Based on Technical Alcohol Mixtures and their Fuel Properties

open access: yesChemie Ingenieur Technik, EarlyView.
A modified oxymethylene ether (OME) synthesis based on C5 and C9 technical alcohol mixtures was developed. The produced compounds can be employed as neat fuel or as blending component for fossil or paraffinic diesel fuels. The modification of OME offers the possibility to adjust desired properties, enabling the evaluation of new application fields ...
Victor Zaghini Francesconi   +4 more
wiley   +1 more source

The lack of dynamic competition and the market insufficiency for agricultural productivity growth: Implications for the role of the state

open access: yesJournal of the Agricultural and Applied Economics Association, Volume 1, Issue 4, Page 374-384, December 2022., 2022
Abstract This paper shows that there is lack of dynamic competition in agriculture, making the market mechanism of agriculture insufficient for bringing about technological innovations. The market insufficiency differs from market failures in that the former causes dynamic inefficiency and lack of growth while the latter causing static inefficiency in ...
Wanki Moon
wiley   +1 more source

Heat transfer and pressure distributions at M equals 8 on 0.029 scale models of the Viking entry vehicle [PDF]

open access: yes
An investigation in the Langley Research Center Mach-8 Variable Density Hypersonic Tunnel was made of the pressure distributions and heat transfer rate distributions on two 0.029 scale Viking Entry Vehicle models.
Carroll, H.   +2 more
core   +1 more source

Fines deposition during hydrotreating: Effects of catalyst size and bed arrangement

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Fines deposition presents a significant problem during the hydrotreating of bitumen‐derived gas oils. The accumulation of fines leads to reactor clogging and consequently, pressure drop buildup. At critical levels, the hydrotreating reactor must be prematurely shutdown, resulting in substantial economic losses for refineries.
Simon Kwao   +3 more
wiley   +1 more source

Asymptotic scaling laws for the stagnation conditions of Z-pinch implosions [PDF]

open access: yesarXiv
Implosions of magnetically-driven annular shells (Z pinches) are studied in the laboratory to produce high-energy-density plasmas. Such plasmas have a wide-range of applications including x-ray generation, controlled thermonuclear fusion, and astrophysics studies.
arxiv  

How regulatory focus–mode fit impacts variety‐seeking

open access: yesJournal of Consumer Psychology, Volume 33, Issue 1, Page 77-96, January 2023., 2023
Abstract Variety‐seeking research has examined antecedents in terms of contextual factors and individual differences. However, it does not consider the interaction of individual difference factors such as regulatory focus (promotion vs. prevention) and regulatory mode (locomotion vs. assessment) to predict variety‐seeking.
Thuy Pham   +3 more
wiley   +1 more source

Numerical Studies on the Effect of Diffuser Rotational Speeds on Low Pressure Ratio Centrifugal Compressor Performance

open access: yesJournal of Applied Fluid Mechanics, 2017
Numerical investigations are conducted to analyze the effect of rotational speeds of rotating vaneless diffuser on performance of a low-pressure ratio centrifugal compressor stage at off-design and design flow coefficients.
S. Seralathan, D. G. Roy Chowdhury
doaj  

Fish balances flow resistance and high pressure in stagnation area

open access: gold, 2023
Go Eguchi   +3 more
openalex   +2 more sources

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