Parcourir les contenus (90 total)

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

In the field of engineering the matrices reinforced by synthetic fibers have become widely used in view of the high specific stiffness and resistance they offer. The main objective of this work is to simulate and analyze the mechanical behavior of a…

The aim of our experimental work is to propose a tool model that could be used as a predictive tool to obtain a good welding of polymers like HDPE by the FSW technique or a linear welding of thin flat plates. A series of experimental tests concerning…

The phenology of wild cherry in the Northwest of Tunisia was studied over the year 2013. The phenological events reserved are theleafing, the flowering and the fruiting. The observation of the various phenological phases of this species (bud burst,…

This work focuses on a comparative analysis of the effect of three cultivation techniques and direct seeding for the establishment of a fodder crops, on soil physical properties and the consequences on fodder sorghum growth and crop yield. To answer…

512 one-day chicks male, of the Arbor Acres strain were weighed and distributed according to their initial body weight through four classes of 128 chicks (4 repetitions of 32 subjects per class): light chicks (l <40 g), medium chicks (M: 40 – 45…

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…

In this study we are interested in the recovery of some orange peel varieties from the region of Bejaia (Washington, Thomson, Double Fine, Portuguese, Jaffa, Sanguinelli and Bitter). Thus, we carried out a phytochemical study which enabled us to…

Destabilization of ultra-high temperature (UHT) milk (140 °C, 4s) in the form of gel or sediment may occur during storage. Thisphenomenon is a real industrial and scientific problem that could be caused by milk proteolysis and lipolysis. This study…

Understanding a species’ current and future potential habitat is crucial to design its policy for management and cultivation practices that are more resilient in the face of climate change. This study assessed the present-day distribution and…

Architectural ornaments, used as decorative elements, are made of stone; but most of their components contain gypsum. It is found that the deterioration of ornaments is attributed to water penetration, biological colonization, micro and macro…
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