Results 31 to 40 of about 9,174,303 (293)

The study of excipients’ influence on Clopidogrel releasing from the rectal suppositories

open access: yesAktualʹnì Pitannâ Farmacevtičnoï ì Medičnoï Nauki ta Praktiki, 2018
Such cardiovascular pathologies as ischemic disease of heart and brain, occlusive diseases of peripheral arteries are the most frequent causes of morbidity, mortality and disability of population in the world.
Ye. А. Redkina   +3 more
doaj   +1 more source

Dynamic behavior of molten pool flow field for active laser welded-thick stainless steel plates

open access: yesMaterials Research Express, 2021
By combining numerical simulation and experimental investigation, this paper intensively investigated the influence rules of adding three active agents (SiO _2 , TiO _2 and NaF) on the dynamic behaviors of flow field in the laser welding 304 stainless ...
L-F Mei   +5 more
doaj   +1 more source

Intensifying the cement grinding process [PDF]

open access: yesE3S Web of Conferences, 2023
This article deals with the intensification of the grinding process in ball mills. Attention is drawn to the need to reduce the energy input for grinding.
Mukhamedbaeva Mas’uda   +2 more
doaj   +1 more source

Single-Layer Bandpass Active Frequency Selective Surface [PDF]

open access: yes, 2008
A single-layer, bandpass, active FSS is presented. It shows good angle of incidence stability for TE incidence, at the operating frequency of 2.45 GHz. It is based on circular loop aperture with each unit cell having four PIN diodes.
Kenneth L. Ford   +17 more
core   +1 more source

PREPARATION OF SOME SURFACE ACTIVE AGENTS AND DETERMINATION OF ITS PHYSICO CHEMICAL PROPERTIES [PDF]

open access: yesJournal of Plant Protection and Pathology, 2006
Two type of surface active agents anionic and nonionic were prepared from locally raw materials: Fatty acids (Iauric and palmitic) reacted with poly ethylene glycol (PEG) 400.
A. Khattab   +3 more
doaj   +1 more source

Surface profile prediction and analysis applied to turning process [PDF]

open access: yes, 2008
An approach for the prediction of surface profile in turning process using Radial Basis Function (RBF) neural networks is presented. The input parameters of the RBF networks are cutting speed, depth of cut and feed rate.
LU, Chen, COSTES, Jean-Philippe
core   +1 more source

Synthesis and evaluation of ?-hydroxy fatty acid-derived heterocyclic compounds with potential industrial interest

open access: yesGrasas y Aceites, 2006
T2-Hydroxyheptadecanoic acid chloride (2) reacted with anthranilic acid to produce 2-substituted-3,1-benzoxazin-4-one (3) which was used as starting material to synthesize some condensed and non-condensed heterocyclic compounds by reaction with nitrogen ...
A. M. F. Eissa, R. El-Sayed
doaj   +1 more source

Selected anionic and cationic surface active agents: case study on the Kłodnica sediments

open access: yesLimnological Review, 2017
Surface active agents (surfactants) are a group of chemical compounds, which are used as ingredients of detergents, cleaning products, cosmetics and functional products.
Olkowska Ewa   +3 more
doaj   +1 more source

An Active Annular Ring Frequency Selective Surface [PDF]

open access: yes, 2011
Offering good performance in terms of all polarizations affected and good angular stability, the ring element is a popular choice in frequency selective surface (FSS) designs.
Paul S. Taylor   +5 more
core   +1 more source

Synthesis and evaluation of some surface active agents from long chain fatty amine

open access: yesGrasas y Aceites, 2007
This study continues our series of synthesis of surface active agents containing heterocyclic moiety. NHeptadecanoyl- 3-(4-oxo-4H-benzo[d][1,3]oxazin-2-yl)- acrylamide (4) was used as a new starting material to synthesize propenoxylated nonionic surface ...
A. M. F. Eissa
doaj   +1 more source

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