Results 1 to 10 of about 89,754 (148)
Experimental Study on Migration Characteristics and Profile Control Performance of Gel Foam in Fractured-Vuggy Reservoir [PDF]
Gel foam exhibits excellent applicability in fractured-vuggy reservoirs, effectively plugging flow channels and enhancing oil recovery. However, due to the harsh high-temperature environment and the complex and variable fracture-vuggy structure in ...
Yan Xin +5 more
doaj +2 more sources
Dependence of the volume stability on the expansion rate of low-expansion foam
In this work, we analyzed and summarized the results of experimental studies of the characteristics of air-mechanical foam generated on the deflector type sprinklers and in the foam generating devices with mesh using three brands of general purpose foam ...
A. N. Kamluk +2 more
doaj +2 more sources
Mathematical model of foam expansion rate generated in sprinklers
Foam solution discharge is always accompanied by changes in the operating pressure due to different pressure losses along the pipeline in automatic foam extinguishing systems.
Kamluk Andrei +3 more
doaj +2 more sources
The results of experimental studies on determination of the effect of the deflector-type sprinkler geometric parameters on the air-mechanical foam formation process are presented in the article.
A. N. Kamluk, A. O. Likhamanau
doaj +3 more sources
Effect of Red and Grey Selenium Nanoparticles on Yeast Growth: Short Communication [PDF]
Selenium nanoparticles (SeNPs) present a promising alternative to toxic inorganic selenium salts, yet the differential bioactivity between their allotropic forms—amorphous red (RSeNPs) and crystalline grey (GSeNPs)—is not fully determined.
Aya Ferroudj +3 more
doaj +2 more sources
Polymer foams are expanding their applications into functional materials. Partial foam structure has been fabricated in polyethylene terephthalate–polyethylene naphthalate (PET–PEN) copolymer by solid state foaming.
Byung Kyu Park +2 more
doaj +1 more source
Purpose. To establish the relationship between the foam expansion rate and stability of low-expansion air-mechanical foam generated in deflector type sprinklers for automatic extinguishing systems.
Андрей Николаевич Камлюк +2 more
doaj +1 more source
Influence of Aluminum Powder Content on Expansion Rate of Foamed Concrete
Abstract Foamed concrete is a heat preservation and noise reduction material made of cement and aluminum powder as foaming agent. The experiment mainly studies the influence of different water-cement ratio, foaming agent dosage and cement dosage on the expansion rate of foamed concrete test block.
Jiaqi Li +4 more
openaire +1 more source
A powder metallurgy rapid foaming method was used to prepare Al-7Si closed-cell aluminum foam, and the influence of the preparation process parameters on the expansion rate, porosity, cell number and pore diameter of the aluminum foam after using high ...
YANG Xu-dong +3 more
doaj +1 more source
The Influence of Alloy Composition and Liquid Phase on Foaming of Al−Si−Mg Alloys [PDF]
The foaming behaviour of aluminium alloys processed by the powder compaction technique depends crucially on the exact alloy composition. The AlSi8Mg4 alloy has been in use for a decade now, and it has been claimed that this composition lies in an “island
Banhart, John +6 more
core +1 more source

