Results 21 to 30 of about 241,761 (290)

Prediction of Bubble Size Distribution in a Batch Foaming System of Polystyrene-Supercritical CO2 [PDF]

open access: yesعلوم و تکنولوژی پلیمر, 2023
Hypothesis: One of the existing challenges in the foam production industry is to achieve the desired mechanical and thermal insulation properties required, which are directly related to cellular density, size, and distribution of bubbles.
Amir Fadaei   +2 more
doaj   +1 more source

NUMERICAL STUDIES OF INTERNAL FLOW IN DIFFERENT TYPES OF FILTERS

open access: yesTASK Quarterly, 2020
The quality of ambient air attracts considerable, widespread interest. Over the last decades, air purification has become an integral part of HVAC systems, process engineering, automotive and respiratory protection.
MAGDALENA STANIK   +4 more
doaj   +1 more source

Analytical investigation of impact of blunt projectile with different ended into sandwich panels [PDF]

open access: yesمجله مدل سازی در مهندسی, 2015
In this paper, an analytical model has been presented for energy absorption of sandwich panels under ballistic impact. Aluminum-foam and composite-foam sandwich panel are investigated in this paper.
seyed sajad jafari, saeid feli
doaj   +1 more source

Fabrication of Precursor by Consolidating Aluminum Alloy Powder Using Friction Stir Welding and Its Foaming

open access: yesMetals, 2022
In this study, we fabricated a precursor by FSW using ADC12 (Al-Si-Cu alloy) powder and foamed the obtained precursor by optical heating to fabricate the porous aluminum (Al). If ADC12 powder can be used for fabricating the precursor, it is expected that
Yoshihiko Hangai   +2 more
doaj   +1 more source

SPACETIME FOAM [PDF]

open access: yesInternational Journal of Modern Physics D, 2002
Spacetime is composed of a fluctuating arrangement of bubbles or loops called spacetime foam, or quantum foam. We use the holographic principle to deduce its structure, and show that the result is consistent with gedanken experiments involving spacetime measurements.
openaire   +2 more sources

Dynamic compressive behavior of foamed polyethylene film

open access: yesEPJ Web of Conferences, 2015
The foamed film as the shock absorption material has attracted much attention because it is thin (100 μm ∼ 400 μm) and has a closed cell structure. However, the dynamic mechanical properties have not been reported in the foamed film.
Tateyama Kohei   +4 more
doaj   +1 more source

Multiple Functions of Malpighian Tubules in Insects: A Review

open access: yesInsects, 2022
The Malpighian Tubules (MTs) are the main excretory organs in most insects. They play a key role in the production of primary urine and osmoregulation, selectively reabsorbing water, ions, and solutes.
Priscilla Farina   +2 more
doaj   +1 more source

Dynamic Foam Characteristics during Cultivation of Arthrospira platensis

open access: yesBioengineering, 2022
This study is aimed at understanding the serious foaming problems during microalgal cultivation in industrial raceway ponds by studying the dynamic foam properties in Arthrospira platensis cultivation. A. platensis was cultivated in a 4 L bowl bioreactor
Ameer Ali Kubar   +7 more
doaj   +1 more source

Experimental Evaluation of Foam Diversion for EOR in Heterogeneous Carbonate Rocks

open access: yesColloids and Interfaces, 2022
Immiscible gas injection applied to heterogeneous carbonate reservoirs can be inefficient due to poor conformance control. Foam mobility control is proposed in this work as a solution for gas conformance issues in such reservoirs.
Motaz Taha, Pramod Patil, Quoc Nguyen
doaj   +1 more source

The Effect of Electrolytes and Urea on the Ethyl Lauroyl Arginate and Cellulose Nanocrystals Foam Stability

open access: yesApplied Sciences, 2022
Carboxylated cellulose nanocrystals (cCNC) are highly dispersible particles useful in many industries. In particular, they can be applied to form Pickering emulsions and foams for “green” applications in the cosmetics, pharmaceutical industry or food ...
Agnieszka Czakaj   +2 more
doaj   +1 more source

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