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

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Modélisation par l’entropie maximale de l’habitat potentiel du cèdre de l’atlas au Maroc: Modelling potential habitats for the Atlas cedar (Cedrus atlantica Manetti) in Morocco using the maximum entropy model

Le cèdre de l’Atlas (Cedrus atlantica) est une espèce emblématique du Maroc, classée par l’Union Internationale pour la Conservation de la Nature (UICN) dans la liste rouge des espèces en voie de disparition. La détermination de son aire potentielle…

Chemical characterization of orange peels, identification by GC-MS and evaluation of the antioxidant power of their essential oils

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…

Etude comparative de la qualité sensorielle de deux confitures désamerisées : bigarade et pamplemousse: Comparative study of the influence of desamerization by salt on the sensory quality of two jams: bitter orange and grapefruit

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…

Influence of the reflectivity of the envelope on the energy demand of buildings and on thermal comfort

In the urban environment, the nature of the materials that cover urban surfaces (sidewalks, facades and roofs) greatly affects the energy consumption and the thermal environment outside and inside the building, depending on the climate. The fraction…

Investigation of air velocity effect on thermal comfort in mosques-hot- dry climate

In hot climate areas, the proper understanding of thermal comfort parameters leads to help building designers in providing a suitable and refreshing environment for occupants. The rational model such as ASHRAE 55/2013, ISO: 7730 defines comfort…

Cloning, expression, and structural modeling of two alkaline serine protease genes from extremophilic Bacillaceae -related species: Application in valorization of invasive crustaceans

Two novel protease genes sapA and sapN from the thermophilic Anoxybacillus kamchatkensis M1V and Melghiribacillus thermohalophilus Nari2AT strains respectively, encoding a polypeptide of 381 and 379 residues, were identified, cloned and successfully…

Life cycle assessment of concrete incorporating scrap tire rubber: Comparative study

At present, the environment suffers from two major problems, the first is the adverse effect of the production of the construction materials due to the resulting emissions and the second one is the increase of the consumption of the natural materials…

Identification approaches for steel strip surface defects in hot rolling Process

In steel manufacturing process, flat products are greatly concerned with the surface quality and the possibilities of its on-lineinspection. The visual control is obviously unable to continuously check the surface of the moving product, and the…

Vers un système peer-to-peer d’aide à la décision en périodes d’épidémies. COVID-19 comme exemple.: Towards a peer-to-peer decision support system in epidemics periods. COVID-19 as an example.

Lors d’une épidémie/pandémie causée par un virus inconnu comme le SRAS-CoV-2, agent responsable du COVID-19, les praticiens de la santé ne peuvent pas prédire le comportement du virus et donc l’évolution de la maladie. Ils ne peuvent pas aussi…

An investigation of the practices of veterinarians and breeders in the prevalence of antibiotic resistance in poultry farms in algeria.

The practices adopted by the breeder and the veterinarian are factors that influence resistance to antibiotics in poultry farms. The study aims to determine some of the applications of the veterinarian and the breeder. A survey was carried out among…

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