Publications scientifiques: Recent submissions

Voici les éléments 261-280 de 624

Study on the relevance of some of the description methods for plateau-honed surfaces

Yousfi, M; Mezghani, S; Demirci, I; El Mansori, M (Surface Topography: Metrology and Properties, 2013-12-23)

Much work has been undertaken in recent years into the determination of complete parametric description of plateau honed surfaces with the intention to make a link between process conditions, surface topography and ...
Green approach to corrosion inhibition by ethyl acetate extract from Pistacia atlantica gals in hydrochloric acid solution

Yousfi, M; Dekmouche, M; Saidi, M; Hadjadj, M; Ghiaba, Z (Int. J. Electrochem. Sci, 2014-07-01)

In this work, the ethyl acetate extract from the gals of Pistacia atlantica has been studied as inhibitor mild steel X52 in hydrochloric acid (1M HCl) solution using weight loss, polarization and AC impedance methods have ...
Treatment of rice husk ash to improve adsorption capacity of cobalt from aqueous solution

Gad, HMH; Omar, HA; Aziz, M; Hassan, MR; Khalil, MH (Asian Journal of Chemistry, 2016-01-01)

Equilibrium, kinetics and thermodynamics parameters of adsorption of cobalt using silica gel, (Si-Cl-RHA) (RHA = rice husk ash) were investigated. The sorption experimentation work were carried out at pH 6 for 2 h. It was ...
Chemical Composition and Antioxidant Activity of the Essential Oil and Fatty Acids of the Flowers of Rhanterium Adpressum

Yousfi, Mohamed; Hamia, Chahrazed; Gourine, Nadhir; Boussoussa, Hadjer; Saidi, Mokhtar; Gaydou, Emile M (Natural product communications, 2013-08)

The essential oil obtained by hydrodistillation of the flowers of Rhanterium adpressum Coss. & Durieu was analyzed using GC and GC-MS. The essential oil was very rich in monoterpene compounds. The major components identified ...
Chemotypes of Pistacia atlantica leaf essential oils from Algeria

Yousfi, Mohamed; Gourine, Nadhir; Bombarda, Isabelle; Gaydou, Emile M (Natural product communications, 2010-01)

The essential oils obtained by hydrodistillation of Pistacia atlantica Desf. leaves collected from different regions of Algeria were analyzed by GC and GC-MS. The essential oil was rich in monoterpenes and oxygenated ...
Chemical Composition of the Essential Oil of Pituranthos scoparius

Yousfi, Mohamed; Gourine, Nadhir; Merrad, Bahia; Stocker, Pierre; Gaydou, Emile M (Natural product communications, 2011-08)

The essential oils obtained by hydro distillation of the aerial parts of Pituranthos scoparius were collected from different regions of Algeria and gave various yields ranging from 0.6 up to 2.8% (v/w). These samples were ...
Study of antioxidant properties of five Algerian date (phoenix dactylifera L) cultivars by cyclic voltammetric technique

Yousfi, Mohamed; Ghiaba, Zineb; Hadjadj, Mohamed; Saidi, Mokhtar (2014-02-01)

Phoenix dactylifera L.(date palm) is well known for its innumerable health benefits and nutritional values. Therefore, the present work aimed to determine the total phenolic content in five date palm fruit (DPF) varieties, ...
Ionic compatibilization of polypropylene/polyamide 6 blends using an ionic liquids/nanotalc filler combination: morphology, thermal and mechanical properties

Yousfi, Mohamed; Livi, Sébastien; Dumas, Agnès; Crépin-Leblond, Jérôme; Greenhill-Hooper, Mike; Duchet-Rumeau, Jannick (Rsc Advances, 2015)

In this study, room temperature ionic liquids (RTILs) based on phosphonium cations have been used as effective compatibilizers of polyolefin/polyamide 6/synthetic talc blends using a melt extrusion process. Thus, different ...
Technical and economical performance of parabolic trough collector power plant under Algerian climate

Yousfi, Mohamed Lamine; Zaaraoui, Abdelkader; Said, Noureddine (Procedia engineering, 2012-01-01)

Parabolic trough solar technology has been proven at nine commercial Solar Electric Generating System (SEGS) power plants that are operating in the California Mojave desert. Simulation using different models when planning ...
Twenty traditional Algerian plants used in diabetes therapy as strong inhibitors of α-amylase activity

Yousfi, Mohamed; Khacheba, Ihcen; Djeridane, Amar (International Journal of Carbohydrate Chemistry, 2014)

In the present work, we have studied the inhibitory effects of aqueous and alcoholic extracts of six Algerian medicinal plants known by their therapeutic virtues against diabetes. The total phenolic compounds content, ...
Étude des acides gras de huile de fruit de pistachier de l’Atlas algérien

Yousfi, M; Nedjemi, B; Belal, R; Ben Bertal, D (Oléagineux, Corps gras, Lipides, 2003-09-01)

Les principales constantes chimiques d’huile de fruit de pistachier de l’Atlas ont été déterminées par des méthodes chimiques simples normalisées. La composition en acides gras totaux et libres de cette huile a été ...
Investigation of an evaporative air cooler using solar energy under Algerian climate

Yousfi, ML; Elmetenani, S; Merabeti, L; Belgroun, Z; Chikouche, A (Energy Procedia, 2011-01-01)

This paper presents an investigation of a direct evaporative air cooler (DEAC) under Algerian climate, at the city of BECHAR. We carried out the theory and design of the DEAC. Simulation is done for an evaporative air ...
A novel method for studying the dynamics of polymers confined in spherical nanoparticles in nanoblends

Yousfi, Mohamed; Porcar, Lionel; Lindner, Peter; Boué, François; Rharbi, Yahya (Macromolecules, 2009-02-24)

We report on a SANS investigation into the potential for these structural reorganization of complexes composed of lysozyme and small PSS chains of opposite charge if the physicochemical conditions of the solutions are ...
Fatty acid, triglyceride and tocopherol composition of Algerian Argan (Argania spinosa) fruit seed lipids

Yousfi, Mohamed; Bombarda, Isabelle; Hamia, Chahrazed; Djeridane, Amar; Stocker, Pierre; Gaydou, Emile (Mediterranean Journal of Nutrition and Metabolism, 2009-12-01)

The main focus of the present work is the analytical study of the fatty acid, triglyceride (TAG) and tocopherol composition of oil extracts from the fruit of Algerian tree Argania spinosa. The four dominant fatty acids ...
Lossless compression of volumetric medical data

Yousfi, Mohamed-Azzeddine; Ait-Aoudia, Samy; Benhamida, Fatma-Zohra (International Symposium on Computer and Information Sciences, 2006-11-01)

Medical imaging applications produce large sets of similar images. Thus a compression technique is useful to reduce space storage. Lossless compression methods are necessary in such critical applications. Volumetric medical ...
Triacylglycerol composition of oil from Pistacia atlantica fruit growing in Algeria

Yousfi, M; Nadjemi, B; Belal, R; Bombarda, I; Gaydou, EM (Journal of the American Oil Chemists' Society, 2005-02-01)

The distribution of FA between the sn-2 and sn-1,3positions of TAG from Pistacia atlanticafruit oil of Algeria hasbeen determined. Unsaturated FA showed a preference for theinternal position. Linoleic and oleic acids ...
Mutual influence of crosshatch angle and superficial roughness of honed surfaces on friction in ring-pack tribo-system

Yousfi, M; Mezghani, Sabeur; Demirci, Ibrahim; El Mansori, M (Tribology International, 2013-10-01)

The cylinder bore surface texture widely produced by honing technique, is an essential factor for a good engine performance (friction, oil consumption, running-in, wear…). This explains the improvement and development ...
Inhibition of porcine liver carboxylesterase by a new flavone glucoside isolated from Deverra scoparia

Yousfi, M; Djeridane, A; Brunel, JM; Vidal, N; Ajandouz, EH; Stocker, P (Chemico-biological interactions, 2008-03-10)

An endemic North African Saharan plant from of the Apiaceae family,Deverra scoparia, used locally for medicinal preparations,showed a strong inhibitory effect on porcine liver carboxylesterase. The active compound from the ...
Thermal and chemical modification of a halloysite and application to the adsorption of a cationic dye

Khelifa, A; Bessaha, F; Mahrez, N; Merouani, D; Sadouki, S; Marouf-Khelifa, K (Algerian Journal of Environmental Science and Technology, 2016)

Algerian halloysite was treated at 600 °C and with hydrochloric acid solutions of various concentrations. The resulting materials were characterised by elemental analysis, TG, TDA, TEM, XRD and nitrogen adsorption at 77 ...
Characterization and spectroscopic study of a heat-treated and acid-leached halloysite used in Congo red adsorption

Khelifa, Amine; Bessaha, Fatiha; Mahrez, Nouria; Bendenia, Souhila; Kasmi, Fatima; Marouf-Khelifa, Kheira (Int. J. Intell. Eng. Syst, 2017)

Algerian halloysite was heated at 600 °C and treated with HCl 5N. The materials were characterized by chemical analysis, TEM, and FT-IR spectroscopy, and used in the elimination of Congo red (CR) from aqueous solution. ...

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