Parcourir les contenus (90 total)

  • Collection: https://journals.univ-chlef.dz/index.php/natec/oai

Heat pipes have applications in several areas of thermal engineering, including electronic components to spacecraft thrust chamber exchangers. Although they can transfer large amounts of heat over a spatially restricted interval, they exhibit several…

The aim of the study was to evaluate the effects of thermal pasteurization at (90°C, 1mn) on physicochemical characteristics and antioxidant capacity (DPPH method) of orange juice (Citrus sinensis L, Thompson variety). Results showed (TS, pH, total…

The present study was conducted to investigate the effects of acid preservatives (AP) and food hydrocolloids (FH) on the shelf life of raw milk at room temperature (between 20 to 25°C). Raw milk samples were treated with different doses of acid…

The main objective of this work is the study of the effect of the incorporation of a mineral charge, perlite, in a thermosetting matrix based on an unsaturated polyester resin, of the isophthalic resin type, on the mechanical, physical and…

In recent years, Togo's protected areas have been subject to a worrying process of anthropisation. This has led to a decline in forest ecosystems, their biodiversity and their functions. The general objective of this study is to assess the state of…

Le présent travail vise la valorisation de compost d’Acacia cyanophylla pour la production de plants de Pin pignon en pépinière etaprès transplantation en parcelle expérimentale. Neufs substrats de croissance à base de compost pur ou mélangé à…

This study was carried out to assess the chemical composition, antioxidant and antimicrobial activities of Eucalyptus citriodoraessential oil growing in Algeria. The chemical composition of the oil was analyzed by GC and GC/MS and revealed the…

Ce travail a pour objectif la comparaison de l’influence de la méthode de désamerisation sur la qualité sensorielle de deux confitures : bigarade et pamplemousse. Le sel, la chaleur et l'eau sont considérés comme des éléments moteurs dans l’opération…

L’étude de l’activité biologique de l’huile essentielle d’Origanum glandulosum sur les adultes de Schistocerca gregaria a révélé un effet acridicide très élevé. La substance testée a été administrée par gavage ou forçage buccale. La mortalité totale…

La ville de Yamoussoukro comprend de nombreux jardins privés. Elle compte plus d’une trentaine de jardins privés avec une biodiversité conséquente. La présente étude a permis d’évaluer l’aménagement des jardins privés de Yamoussoukro. Pour atteindre…
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