5 10 90 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource https://journals.univ-chlef.dz/index.php/natec/oai Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource BOUANDES, Karima MAZOUZ, Saïd Date A point or period of time associated with an event in the lifecycle of the resource 2022-12-26 Description An account of the resource The hospital architectural space, especially the reception and waiting area, by its nature, is a sensitive and quite complex place. In Algeria, this space presents a panoply of problems of a societal, functional, spatial, ambiental, visual and human nature. The issue of user comfort and particularly that of visual comfort remains problematic. The objective of this work is to propose a model of qualification of the degree of visual comfort of users generated from ten selected physical parameters obtained, on the one hand through the characterization of the quality of the lighting environment, it is the case of "the luminance / contrast of luminances, and the five indices of the annoying glare (DGP1, VCP2, UGR3, DGI4 and CGI5)", and on the other hand through the characterization of the visibility according to four properties of the isovists "surface, perimeter, occlusivity and compactness" obtained from the syntactic analysis "isovist". The corpus of study gathers nineteen scenes reflecting the reception and waiting spaces of the emergency, general surgery and internal medicine departments in three hospitals in Setif6 (Algeria). The main tool of investigation was a software simulation based on graphic and visual supports: plans and HDR photographs of the studied spaces recorded during the summer period. The results show that the space is the main factor that conditions the visual comfort of the users and influences their degree of satisfaction, as they confirm that the proposed model has proved that the space and its configuration present the raw material that must be mastered and controlled upstream in order to control the luminous atmosphere and the visibility. We judge that this experimental model combining the use of both the techniques and analysis of the Spatial Syntax theory and the assets of HDR photographs is a tool that can be applied on other architectural spaces. L’espace architectural hospitalier notamment l’espace d’accueil et d’attente, de par sa nature, est un lieu sensible et assezcomplexe. En Algérie, cet espace présente une panoplie de problèmes d’ordre sociétal, fonctionnel, spatial, ambiantal, visuel ethumain. La question du confort des usagers et notamment celle du confort visuel reste problématique. L'objectif de ce travail est deproposer un modèle de qualification du degré de confort visuel des usagers généré à partir de dix paramètres physiques choisisobtenus, d'un côté grâce à la caractérisation de la qualité de l’ambiance lumineuse c'est le cas de "la luminance / le contraste deluminances et les cinq indices de l'éblouissement gênant (DGP1, VCP2, UGR3, DGI4 et CGI5)" et d'un autre côté grâce à lacaractérisation de la visibilité selon quatre propriétés des isovistes “surface, périmètre, occlusivité et compacité” obtenus à partir del’analyse syntaxique “isoviste”. Le corpus d'étude regroupe dix-neuf scènes reflétant les espaces d’accueil et d’attente des services des urgences, de chirurgie générale et de médecine interne dans trois hôpitaux à Sétif6 - Algérie. L’outil principal d’investigation étant une simulation par logiciels sur la base des supports graphiques et visuels : plans relevés et photographies HDR des espaces étudiés prises durant la période estivale. Les résultats montrent que l’espace est le facteur déterminant qui conditionne le confort visuel des usagers et influence leur degré de satisfaction, comme ils confirment que le modèle proposé a prouvé que l’espace et sa configurationprésentent la matière première qui doit être maitrisée et contrôlée en amont afin de contrôler l'ambiance lumineuse et la visibilité.Nous jugeant que ce modèle expérimental combinant l’utilisation à la fois des techniques et analyses de la théorie de la SyntaxeSpatiale et les atouts des photographies HDR est un outil qui peut être appliqué sur d'autres espaces architecturaux. Identifier An unambiguous reference to the resource within a given context https://journals.univ-chlef.dz/index.php/natec/article/view/107 Language A language of the resource fra Publisher An entity responsible for making the resource available Hassiba Benbouali University of Chlef Relation A related resource https://journals.univ-chlef.dz/index.php/natec/article/view/107/78 Rights Information about rights held in and over the resource Copyright (c) 2019 Nature & Technology Journal https://creativecommons.org/licenses/by/4.0/ Source A related resource from which the described resource is derived Revue Nature et Technologie; Vol. 11 No. 01 (2019); 21-37 Revue Nature et Technologie; Vol. 11 No 01 (2019); 21-37 2437-0312 1112-9778 Subject The topic of the resource Hospital reception and waiting areas Visual comfort Lighting ambiance Visibility HDR photography Isovist Thermal atmosphere Comfort Hospitals Espaces d’accueil et d’attente Hôpitaux Confort visuel Ambiance lumineuse Visibilité Photographie HDR Isoviste Ambiance thermique Comfort Hopitaux Title A name given to the resource Characterization of the lighting environment and visibility, and qualification of the degree of visual comfort in the reception areas of hospitals in Setif - Algeria Caractérisation de l'ambiance lumineuse et de la visibilité, et qualification du degré de confort visuel dans les espaces d’accueil des hôpitaux à Sétif - Algérie Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource https://journals.univ-chlef.dz/index.php/natec/oai Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource BOUMEHRAZ, Mohammed-Amin MELLAS, Mekki Date A point or period of time associated with an event in the lifecycle of the resource 2022-12-26 Description An account of the resource Several degradations have been observed on the sanitation networks (pipes and manholes) in Ouargla region, because of the qualityof the concrete produced, the type of pipes used, and also the aggressiveness of the external environment. These problems include the carbonation of concrete or the diffusion of carbon dioxide inside the pores of reinforced concrete the sewage system. In this study, they are mading of SRC2 cement concrete specimens, these samples were kept in the real environment (waste water and CO2 gas), and the results were compared to those than of control specimens. They concluded that SRC cement concrete is of low durability in sewage system, and is rapidly degraded by carbon dioxide. Finally, for the specimens exposed to this gas we recorded a regression of 40 % about of compressive strength and also a depth of carbonation that reaches the order of 8 mm at the age of 365 days. Plusieurs dégradations ont été constatées sur les réseaux d’assainissements (conduites et regards) à cause de la qualité du bétonproduit, le type de conduites utilisées, et aussi l’agressivité de l’environnement extérieur. Parmi ces problèmes, on peut citer lacarbonatation du béton ou la diffusion de gaz carbonique (CO2) à l’intérieur des pores du béton armé des ouvrages d’assainissement.Dans cette étude nous avons confectionné des éprouvettes en béton de ciment CRS1, ces échantillons ont été conservés dans le milieu réel (eau usée et gaz carbonique), et dont les résultats ont été comparés à ceux des éprouvettes témoins. Nous avons conclu que le béton de ciment CRS est de faible durabilité dans les réseaux d’assainissement, et se dégrade rapidement sous l’effet du gaz carbonique. Enfin pour les éprouvettes exposées au ce gaz nous enregistrons une régression d’eviron 40 % de résistance à la compression et aussi une profondeur de carbonatation qui atteint l’ordre de 8 mm à l’âge de 365 jours. Identifier An unambiguous reference to the resource within a given context https://journals.univ-chlef.dz/index.php/natec/article/view/105 Language A language of the resource fra Publisher An entity responsible for making the resource available Hassiba Benbouali University of Chlef Relation A related resource https://journals.univ-chlef.dz/index.php/natec/article/view/105/77 Rights Information about rights held in and over the resource Copyright (c) 2019 Nature & technology Journal https://creativecommons.org/licenses/by/4.0/legalcode.fr Source A related resource from which the described resource is derived Revue Nature et Technologie; Vol. 11 No. 01 (2019); 12-20 Revue Nature et Technologie; Vol. 11 No 01 (2019); 12-20 2437-0312 1112-9778 Subject The topic of the resource Durability Sulfate resistant cement (CRS) Waste water Carbon dioxide (CO2) Carbonation Of The Concrete Durabilité Ciment résistants aux sulfates (CRS) Eau usée Gaz carbonique (CO2) Carbonatation du béton Title A name given to the resource Carbonation Of The Concrete Of The Sanitation NetworksIn The Region Of Ouargla Carbonatation Du Béton Des Réseaux D’assainissement Dans La Région D'ouargla Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource https://journals.univ-chlef.dz/index.php/natec/oai Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource MEBARKI, Ammar BOUCHAHM, Yasmina Date A point or period of time associated with an event in the lifecycle of the resource 2019-01-30 Description An account of the resource 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 boundaries based on the experimental results, which are conducted in climatic chambers. Research works have been rarely conducted in buildings with high density of occupants like mosques. In order to study the thermal comfort and the effect of air velocity in mosques in hot dry climate, a rational and adaptive comfort study by applying ASHRAE 55, ISO: 7730/10551 is carried out in Eloued city, Algeria. The results show that the applicability of ISO7730 is suitable for a natural air velocity v_air∈[0.35,0.8]m⁄s, where the comfortable operative temperature is 30.7°C. However this outcome doesn’t exceed 26.8°C for air velocity vair< 0.35m/s. Dans les régions à climat chaud, la bonne compréhension des paramètres de confort thermique permet d'aider les concepteurs de bâtiments à fournir un environnement approprié et rafraîchissant aux occupants. Le modèle rationnel tel que ASHRAE 55/2013, ISO : 7730 définit les limites du confort sur la base des résultats expérimentaux, qui sont menés dans des chambres climatiques. Les travaux de recherche ont rarement été menés dans des bâtiments à forte densité d'occupants comme les mosquées. Afin d'étudier le confort thermique et l'effet de la vitesse de l'air dans les mosquées en climat chaud et sec, une étude rationnelle et adaptative du confort en appliquant ASHRAE 55, ISO : 7730/10551 est réalisée dans la ville d'Eloued, Algérie. Les résultats montrent que l'applicabilité de la norme ISO7730 convient pour une vitesse d'air naturelle v_air∈[0.35,0.8]m⁄s, où la température opérationnelle confortable est de 30.7°C. Cependant, ce résultat ne dépasse pas 26,8°C pour une vitesse d'air vair< 0,35m/s. Identifier An unambiguous reference to the resource within a given context https://journals.univ-chlef.dz/index.php/natec/article/view/104 Language A language of the resource eng Publisher An entity responsible for making the resource available Hassiba Benbouali University of Chlef Relation A related resource https://journals.univ-chlef.dz/index.php/natec/article/view/104/76 Rights Information about rights held in and over the resource Copyright (c) 2019 Nature & Technology Journal https://creativecommons.org/licenses/by/4.0/legalcode.fr Source A related resource from which the described resource is derived Revue Nature et Technologie; Vol. 11 No. 01 (2019); 03-11 Revue Nature et Technologie; Vol. 11 No 01 (2019); 03-11 2437-0312 1112-9778 Subject The topic of the resource Adaptive Comfort Eloued City Chimney effect Air speed Urbanism Confort adaptatif Ville d'Eloued Effet de cheminée Vitesse de l'air Urbanisme Title A name given to the resource Investigation of air velocity effect on thermal comfort in mosques-hot- dry climate Etude de l'effet de la vitesse de l'air sur le confort thermique dans les mosquées en climat chaud et sec Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource https://journals.univ-chlef.dz/index.php/natec/oai Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource BOUZIDI, Hakima LAKHLEF, Zina HELLAL, Zohra DJENANE, Djamel Date A point or period of time associated with an event in the lifecycle of the resource 2022-12-20 Description An account of the resource The “in vitro” study of the antifungal activity of essential oils (EOs) with respect to Aspergillus brasiliensis CIPF1431.83 (A.brasiliensis) was carried out. The results obtained indicate that the EO of Satureja montana (S. montana) showed considerableantifungal potential (p < 0.05). Different combinations of EOs have shown great antifungal capacity. S. montana EO showed aminimum inhibitory concentration (MIC) of 0.30 µl/ml, the combination L. nobilis + S. montana gave a MIC of 0.63 µl/ml, whereasthe combinations P. lentiscus/S. montana; P. lentiscus/L. nobilis/S. montana gave MICs of 2.50 µ/ml. The design of a micro-atmosphere conditioning of fresh strawberries in the presence of S. montana and S. montana/P. lentiscus as bioactive agents for thebiopreservation of fresh strawberries showed that the combination of EO showed a high efficiency against this mold studied and othermolds of strawberries deterioration. L’étude “in vitro” de l’activité antifongique des différentes huiles essentielles (HEs) vis-à-vis d’Aspergillus brasiliensisCIPF1431.83 (A. brasiliensis) a été réalisée. Les résultats obtenus ont montré que l’HE issue de Satureja montana (S. montana) exerce un pouvoir antifongique significatif (p < 0,05). Cependant, une grande capacité antifongique a été enregistrée lors de différentescombinaisons des HEs. Les performances des différents traitements exprimées en termes de Concentrations Minimales Inhibitrices(CMIs) ont donné des valeurs de l’ordre de 0,30 μl/ml, 0,63 μl/ml et 2,50 μl/ml, respectivement pour S. montana, L. nobilis/S. montana et P. lentiscus/S. montana. Cependant, la combinaison P. lentiscus/L. nobilis/S. montana a donné une CMI semblable à celle obtenue avec la combinaison P. lentiscus/S. montana (2,50 μl/ml). Le conditionnement sous micro-atmosphère en présence de S. montana et de S. montana/P. lentiscus comme agents bioactifs a montré une efficacité élevée à l’encontre de la moisissure étudiée et d’autres moisissures d’altération des fraises durant le stockage. Identifier An unambiguous reference to the resource within a given context https://journals.univ-chlef.dz/index.php/natec/article/view/101 Language A language of the resource fra Publisher An entity responsible for making the resource available Hassiba Benbouali University of Chlef Relation A related resource https://journals.univ-chlef.dz/index.php/natec/article/view/101/73 Rights Information about rights held in and over the resource Copyright (c) 2019 Nature & Technology Journal https://creativecommons.org/licenses/by/4.0/deed.en Source A related resource from which the described resource is derived Revue Nature et Technologie; Vol. 11 No. 02 (2019); 35-50 Revue Nature et Technologie; Vol. 11 No 02 (2019); 35-50 2437-0312 1112-9778 Subject The topic of the resource Strawberries Aspergillus brasiliensis Micro-atmosphere Essential oils Biopreservation Strawberrie Storage Fraises A. brasiliensis Conditionnement micro-atmosphère Huiles essentielles Bioconservation fraise Conditionnement Title A name given to the resource The packaging of fresh strawberries under "micro-atmosphere" based on essential oils combination: Effect during storage Le conditionnement des fraises fraîches sous "micro-atmosphère" à base d’huiles essentielles combinées : Effet durant le stockage Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource https://journals.univ-chlef.dz/index.php/natec/oai Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource TANOH, Sylvestre Koffi N’GAMAN-KOUASSI, Christelle Chantal BOA, David MAMYRBEKOVA-BÉKRO, Janat Akhanovna BÉKRO, Yves-Alain Date A point or period of time associated with an event in the lifecycle of the resource 2022-12-20 Description An account of the resource By DPPH● radical scavenging method, the antioxidant activity of the total hydroethanol and hydroacetonic extracts of Palisotahirsuta (Commelinaceae), Mallotus oppositifolius (Euphorbiaceae), Ocimum gratissimum (Lamiaceae), Glyphaea brevis (Tiliaceae), four plant species from the Ivorian pharmacopoeia have been evaluated against two references (vitamin C and quercetin). The medianconcentration (CR50) defined as the concentration of the extract necessary to reduce 50 % of the initial concentration of the DPPH●radical, has been used as a parameter to evaluate the efficiency of the extracts in relation to the DPPH●. The results obtained in this work indicate that the crude hydroethanolic extract of Mallotus oppositifolius leaves has the best antioxidant activity (CR50=200.7±0.2 μg/ml) among all the extracts studied. However, this extract is less effective than vitamin C (CR50=136.2±0.3 μg/ml) but more effective than quercetin (CR50=222.1±0.2 μg/ml). Par la méthode de piégeage du radical stable DPPH●, l’activité antioxydante des extraits totaux hydroéthanolique et hydroacétoniquede Palisota hirsuta (Commelinaceae), Mallotus oppositifolius (Euphorbiaceae), Ocimum gratissimum (Lamiaceae), Glyphaea brevis(Tiliaceae), quatre espèces végétales de la pharmacopée traditionnelle ivoirienne ont été évaluées par rapport à deux références (lavitamine C et la quercétine). La concentration médiane (CR50) définie comme étant celle de l’extrait nécessaire pour réduire 50 % de laconcentration initiale du radical DPPH●, a été utilisée comme un paramètre d’évaluation de l’efficacité des extraits vis-à-vis du DPPH●.Les résultats obtenus indiquent que l’extrait brut hydroéthanolique des feuilles de Mallotus oppositifolius a la meilleure activitéantioxydante (CR50 = 200,7 ± 0,2 μg/ml) parmi tous les extraits étudiés. Toutefois, cet extrait est moins efficace que la vitamine C (CR50= 136,2 ± 0,3 μg/ml) mais plus efficace que la quercétine (CR50 = 222,1 ± 0,2 μg/ml). Identifier An unambiguous reference to the resource within a given context https://journals.univ-chlef.dz/index.php/natec/article/view/98 Language A language of the resource fra Publisher An entity responsible for making the resource available Hassiba Benbouali University of Chlef Relation A related resource https://journals.univ-chlef.dz/index.php/natec/article/view/98/72 Rights Information about rights held in and over the resource Copyright (c) 2019 Nature & Technology Journal https://creativecommons.org/licenses/by/4.0/deed.en Source A related resource from which the described resource is derived Revue Nature et Technologie; Vol. 11 No. 02 (2019); 28-34 Revue Nature et Technologie; Vol. 11 No 02 (2019); 28-34 2437-0312 1112-9778 Subject The topic of the resource Polyphenols Crude extract Antioxidant activity DPPH● Ivorian pharmacopoeia Antioxidant activity Polyphénols Extrait brut Activité antioxydante DPPH● Pharmacopée ivoirienne Activité antioxydante Title A name given to the resource Antioxidant activity of hydroethanolic and hydroacetone crude extracts of hydroacetone extracts of the organs of four plants from Ivory Coast medicinal plants Activité antioxydante des extraits bruts hydroéthanoliques et hydroacétoniques des organes de quatre plantes de Côte d’Ivoire médicinales Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource https://journals.univ-chlef.dz/index.php/natec/oai Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource AHMARI, Ikram KORICHI, Ammar GASMI, Farid KRADA, Salah Eddine El Ayoubi Date A point or period of time associated with an event in the lifecycle of the resource 2022-12-20 Description An account of the resource Currently, the global warming has become a planetary problematic and an incontestable urgency that we should imperatively face.Indeed, this phenomenon proves to be a major stake of sustainable development. Because its impacts are not limited to environmentalissues but it could lead to serious socio-economic consequences. Therefore, a reflection has become essential on the actions to beundertaken in order to reduce energy consumption and thus limit the Greenhouse gas emissions responsible for global warming. Thisreminds us of the necessary change in the building sector, especially in terms of housing since it is been considered as the first energyconsumer. It would be therefore time to change our look towards for housing that advocate energy efficiency. Thus, the aim of this article is to evaluate the impact of the thermal inertia of the architectural envelope on energy consumption of the building; in order to contribute to the development of passive solutions allowing design buildings that are less energy intensive and more sustainable. Thereby, we adopt an in vitro analytical approach through a numerical simulation of the energy balance of a prototype of residential building of collective type in a Mediterranean climate in the city of Constantine using TRNSYS software. The results of this study showed that the reinforcement of the thermal inertia, in particular by the use of terracotta brick and cork, has allowed a notable reduction in energy requirements; allowing to consume 84 % less energy than conventional housing against an additional investment cost of only 2 %, offset by a consequent reduction in operating expenses. A l’heure actuelle, le réchauffement climatique est devenu une problématique planétaire et une urgence incontestable à laquelle ondevrait impérativement y faire face. En effet, ce phénomène s’avère comme un enjeu majeur du développement durable. Car ses impacts ne se limitent pas seulement à des questions environnementales ; mais il pourrait entrainer de graves conséquences socio-économiques. Dès lors, une réflexion s’impose sur les actions à entreprendre afin de réduire la consommation énergétique et ainsi limiter les émissions de Gaz à Effet de Serre responsables du réchauffement climatique. Ceci nous rappelle la nécessaire mutation du secteur du bâtiment, notamment en matière d’habitat, étant donné qu’il est considéré comme premier consommateur d’énergie. Il serait donc temps de changer notre regard vers des habitats préconisant l’efficacité énergétique. De ce fait, l’objectif de cet article est d’évaluer l’impact de l’inertie thermique de l’enveloppe architecturale sur la consommation énergétique du bâtiment ; afin de contribuer au développement de solutions passives permettant de concevoir des bâtiments moins énergivores et plus durables. Pour ce faire, nous adoptons une approche analytique in vitro à travers une simulation numérique du bilan énergétique d’un prototype de bâtiment résidentiel de type collectif dans un climat méditerranéen à la ville de Constantine, et ce, à l’aide du logiciel TRNSYS. Les résultats de cette étude ont montré que le renforcement de l’inertie thermique, en l’occurrence, grâce à l’usage de la brique de terre cuite et du liège, a permis une réduction notable des besoins énergétiques ; permettant ainsi de consommer 84 % d’énergie en moins qu’un logement conventionnel contre un surcoût d’investissement de seulement 2 % compensé par une réduction conséquente des dépenses de fonctionnement. Identifier An unambiguous reference to the resource within a given context https://journals.univ-chlef.dz/index.php/natec/article/view/97 Language A language of the resource fra Publisher An entity responsible for making the resource available Hassiba Benbouali University of Chlef Relation A related resource https://journals.univ-chlef.dz/index.php/natec/article/view/97/71 Rights Information about rights held in and over the resource Copyright (c) 2019 Nature & Technology Journal https://creativecommons.org/licenses/by/4.0/deed.en Source A related resource from which the described resource is derived Revue Nature et Technologie; Vol. 11 No. 02 (2019); 12-27 Revue Nature et Technologie; Vol. 11 No 02 (2019); 12-27 2437-0312 1112-9778 Subject The topic of the resource Sustainable development Energy efficiency Thermal inertia Architectural envelope TRNSYS simulation software Residential building Mediterranean climate Simulation of the Impact of Thermal Inertia on the Energy Consumption of a Residential Building in a Mediterranean Climate Développement durable Efficacité énergétique Inertie thermique Enveloppe architecturale Logiciel de simulation TRNSYS Climat méditerranéen Simulation de l'impact de l'inertie thermique sur la consommation énergétique d'un bâtiment résidentiel dans un climat méditerranéen Title A name given to the resource Simulation of the impact of thermal inertia on the energy consumption of a residential building in a Mediterranean climate: Simulation de l'impact de l'inertie thermique sur la consommation énergétique d'un bâtiment résidentiel dans un climat méditerranéen: Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource https://journals.univ-chlef.dz/index.php/natec/oai Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource CHEIKH , Abdelbaki Date A point or period of time associated with an event in the lifecycle of the resource 2022-12-20 Description An account of the resource An analytical study to predict the behavior of FGM Nano-plates supported by Pasternak elastic foundations based on a theory ofhyperbolic shear strain. Nonlocal elasticity theory is used to introduce the effect of small scale. The influence of the parameters of thegeometry, the foundation stiffness, and the material property are presented. Hence it is unnecessary to use shear correction factors. The governing equations are derived from the principle of virtual work. The free vibration solutions are finally presented for the nonlocalhigher order plate models. The numerical results obtained in the present study for several examples are presented and compared to other models available in the literature. Une étude analytique pour prédire le comportement des nano-plaques FGM supportées par des fondations élastiques Pasternak, basée sur une théorie de la déformation de cisaillement hyperbolique. La théorie de l'élasticité non locale est utilisée pour introduire l'effet de la petite échelle. L'influence des paramètres de la géométrie, de la rigidité de la fondation et de la propriété du matériau sont présentées. Il n'est donc pas nécessaire d'utiliser des facteurs de correction du cisaillement. Les équations directrices sont dérivées du principe du travail virtuel. Les solutions de vibration libre sont finalement présentées pour les modèles de plaques non locales d'ordre supérieur. Les résultats numériques obtenus dans cette étude pour plusieurs exemples sont présentés et comparés à d'autres modèles disponibles dans la littérature. modèles disponibles dans la littérature. Identifier An unambiguous reference to the resource within a given context https://journals.univ-chlef.dz/index.php/natec/article/view/96 Language A language of the resource eng Publisher An entity responsible for making the resource available Hassiba Benbouali University of Chlef Relation A related resource https://journals.univ-chlef.dz/index.php/natec/article/view/96/68 Rights Information about rights held in and over the resource Copyright (c) 2019 Nature & Technology Journal https://creativecommons.org/licenses/by/4.0/deed.en Source A related resource from which the described resource is derived Revue Nature et Technologie; Vol. 11 No. 02 (2019); 07-11 Revue Nature et Technologie; Vol. 11 No 02 (2019); 07-11 2437-0312 1112-9778 Subject The topic of the resource Pasternak elastic foundations Hyperbolic shear strain Nano-plates Nanoplate FGM Fondations élastiques Pasternak Déformation de cisaillement hyperbolique Nano-plaques Nano-plaque FGM Title A name given to the resource Dynamic Behavior Analysis of Functionally Graded Nanoplates Based on Elastic Foundations Analyse du comportement dynamique de nano-plaques à gradient fonctionnel basé sur des fondations élastiques. sur des fondations élastiques Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource https://journals.univ-chlef.dz/index.php/natec/oai Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource HAMADI, Billel BOULANOUAR, Lakhdar YALLESE, Mohamed Athmane BEKKOUCHE, Hanane NOUIOUA, Mourad ACHOUR, Toufik Date A point or period of time associated with an event in the lifecycle of the resource 2022-12-20 Description An account of the resource In this paper, an experimental study is carried out to evaluate the effect of coating material on the performance of cutting tools whenturning 42 CrMo4 steel. A comparative study was carried out between two carbide tools with the same geometry, the first uncoated andthe second coated with CVD. The ANOVA process was used to quantify the effects of the cutting parameters on the quality of thesurfaces obtained. The effect of coating layers on surface quality is also studied. We observe that a lower surface roughness is obtainedwhen using coated inserts Dans cette article, une étude expérimentale est réalisée afin d'évaluer l'effet de matériau de revêtement sur les performances desoutils de coupe en tournage de l’acier 42 CrMo4. Une étude comparative a été réalisée entre deux outils en carbure de même géométrie ;le premier non revêtu et le second revêtu en CVD1. Le procédé ANOVA a été utilisé pour quantifier les effets des paramètres de coupesur l’état des surfaces obtenues. L’effet des couches de revêtement sur la qualité de surface est également étudié. On observe qu’uneplus faible rugosité de surface est obtenue lors de l’utilisation de plaquettes revêtues. Identifier An unambiguous reference to the resource within a given context https://journals.univ-chlef.dz/index.php/natec/article/view/95 Language A language of the resource fra Publisher An entity responsible for making the resource available Hassiba Benbouali University of Chlef Relation A related resource https://journals.univ-chlef.dz/index.php/natec/article/view/95/67 Rights Information about rights held in and over the resource Copyright (c) 2019 Nature & Technology Journal https://creativecommons.org/licenses/by/4.0/deed.en Source A related resource from which the described resource is derived Revue Nature et Technologie; Vol. 11 No. 02 (2019); 01-06 Revue Nature et Technologie; Vol. 11 No 02 (2019); 01-06 2437-0312 1112-9778 Subject The topic of the resource Cutting Tool Hard Coatings RSM Surface roughness Coating Characterization Industrial Technologies Outil De Coupe Revêtements Durs RSM Rugosité de surface Caractérisation de Revêtement Technologies Industrielles Title A name given to the resource Experimental Study of the Machineability of 42CrMo4 Steel with Coated and Uncoated Carbide Tools Étude Expérimentale de l'Usinabilité de l'acier 42 CrMo4 avec des Outils en Carbure revêtu et non revêtu Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource https://journals.univ-chlef.dz/index.php/natec/oai Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource HAMZAOUI, Imane GMIRA, Najib QARRO, Mohammed Date A point or period of time associated with an event in the lifecycle of the resource 2022-12-19 Description An account of the resource Since the last decades, transhumance movements in the province of Ifrane are reduced in favor of a general progress ofsedentarisation on high altitude rangelands. This permanent installation induces overexploitation of high– altitude rangelands and forests essentially composed of green oak and the Atlas cedar trees. The aim of this paper is first to quantify the evolution of sedentarisation on high– altitude rangelands through the evolution of construction’ numbers, then to highlight the main factors inducing this phenomenon and finally to show the impacts of this progression on forest resources. The methodology adopted is based on data collected through semi– structured interviews; with groups of resource persons from all ethnic communities of the province. The results show an evolution of the sedentarisation of 24 new constructions per year between 2005 and 2015. This evolution took place under the effect of internal factors (demographic growth, cultivation of the low altitude rangelands, etc.) and external factors (installation of Adarouch Ranch and disengagement of the State from its enforcement role). Sedentarization is a threat to the sustainability of forest resources through the continuous exploitation in time and space of these resources, the abandonment of the practice of Agdal on the lawns and the generalization of delimbing and topping of forest trees in times of scarcity (autumn– winter). Depuis les dernières décennies, les mouvements de transhumance à l’échelle de la province d’Ifrane se réduisent au profit d’unprogrès général de la sédentarisation des éleveurs sur les parcours d’altitude. Cette installation permanente induit une surexploitationdes parcours à usage collectif d’altitude et des parcours forestiers, constitués essentiellement par la chênaie verte et la cédraie de l’Atlas. Le présent article a pour objectifs d’abord de quantifier l’évolution de la sédentarisation sur les parcours d’altitude à travers l’évolution du nombre des constructions en dur, ensuite de mettre en relief les principaux facteurs induisant ce phénomène et enfin de montrer les impacts de cette progression sur les ressources forestières. La méthodologie adoptée s’appuie sur les données recueillies par entretiens semi– structurés. Ces derniers ont été réalisés avec des groupes de personnes ressource par collectivité ethnique. Les résultats montrent une évolution de la sédentarisation en altitude de 24 nouvelles constructions par an entre 2005 et 2015. Cette évolution a eu lieu sous l’effet de facteurs internes (croissance démographique, mise en culture des parcours de basse altitude, ...etc.) et de facteurs externes (installation du Ranch Adarouch et désengagement de l’Etat à jouer son rôle de contrôle d’application des règles). La sédentarisation en altitude constitue une menace à la durabilité des ressources forestières à travers l’exploitation continue dans le temps et dans l’espace de ces ressources, l’abandon de la pratique d’Agdal sur les pelouses et la généralisation des pratiques d’ébranchage et d’écimage des arbres forestiers en période de disette (automne– hiver). Identifier An unambiguous reference to the resource within a given context https://journals.univ-chlef.dz/index.php/natec/article/view/93 Language A language of the resource fra Publisher An entity responsible for making the resource available Hassiba Benbouali University of Chlef Relation A related resource https://journals.univ-chlef.dz/index.php/natec/article/view/93/66 Rights Information about rights held in and over the resource Copyright (c) 2020 Nature & Technology Journal https://creativecommons.org/licenses/by/4.0/deed.en Source A related resource from which the described resource is derived Revue Nature et Technologie; Vol. 12 No. 01 (2020); 38-46 Revue Nature et Technologie; Vol. 12 No 01 (2020); 38-46 2437-0312 1112-9778 Subject The topic of the resource Sedentarisation High–altitude rangelands Middle Atlas Semi– structured interviews Sustainability Forest resources Sedentarisation Sédentarisation Parcours d’altitude Moyen Atlas Entretiens semi– structurés Durabilité Ressources forestières Sédentarisation Title A name given to the resource The sedentarisation of pastoralists and its impacts on the sustainability of forest ecosystems in the Central Middle Atlas (case of Ifrane province, Morocco) Sédentarisation Des éleveurs Et Impacts Sur La Durabilité Des écosystèmes Forestiers Du Moyen Atlas Central (cas De La Province D'ifrane, Maroc) Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource https://journals.univ-chlef.dz/index.php/natec/oai Dataset Data encoded in a defined structure. Examples include lists, tables, and databases. A dataset may be useful for direct machine processing. Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource NOURI, Mohamed BOUZIDI, Makram REZGUI, Walid SOLTANI, Fethia REJEB, Mohamed Néjib Date A point or period of time associated with an event in the lifecycle of the resource 2022-12-19 Description An account of the resource Environmental indicators are essential tools for tracking environmental risks especially land use degradation. Supporting theenvironmental evaluation and research items needs usually a heavy and costly field work. For these reasons, some methods and indicators of risks have gained in importance in many countries and in international reports. As part of their commitment to transparency to real information, public authority increasingly uses a reduced number of indicators or select existent methods to report on major environmental issues. These economic and time justifications cannot nor ignore or hide the disadvantages of these methods apart from their validation areas especially in arid countries. The study concerned the application of a European method for the evaluation of the risks of desertification namely “the Mediterranean Desertification and Land Use or MEDALUS method”, which had deserved more researches to adapt it to the arid conditions. Indeed, testing this method to the desertification risks evaluation of the agricultural land-use in Tunisia has showed its limits. The review of parameters used and the re-calibration of the risks levels to the agricultural units have improved the results of this method in arid conditions. This improvement was limited about 10% (land degradation risks has reduced from 90.5% to 81% of surface studied) when adapted soil quality index to local conditions and re-calibration of risks levels were applied. But these results do not prevent that validation of the method would improve analyzes and understanding of this phenomenon in local conditions. Les indicateurs environnementaux sont des outils essentiels pour suivre les risques environnementaux, notamment la dégradation de l'utilisation des sols. L'évaluation environnementale et les éléments de recherche nécessitent généralement un travail de terrain lourd et coûteux. Pour ces raisons, certaines méthodes et certains indicateurs de risques ont gagné en importance dans de nombreux pays et dans les rapports internationaux. Dans le cadre de leur engagement en faveur de la transparence et de l'information réelle, les autorités publiques utilisent de plus en plus un nombre réduit d'indicateurs ou sélectionnent des méthodes existantes pour rendre compte des principaux problèmes environnementaux. Ces justifications économiques et temporelles ne peuvent ni ignorer ni masquer les inconvénients de ces méthodes en dehors de leurs zones de validation notamment dans les pays arides. L'étude a porté sur l'application d'une méthode européenne d'évaluation des risques de désertification, à savoir "la méthode MEDALUS" (Mediterranean Desertification and Land Use), qui aurait mérité plus de recherches pour l'adapter aux conditions arides. En effet, l'application de cette méthode à l'évaluation des risques de désertification de l'utilisation des terres agricoles en Tunisie a montré ses limites. La révision des paramètres utilisés et le re-calibrage des niveaux de risques aux unités agricoles ont amélioré les résultats de cette méthode en conditions arides. Cette amélioration a été limitée à environ 10% (les risques de dégradation des terres ont été réduits de 90,5% à 81% de la surface étudiée) lorsque l'indice de qualité des sols adapté aux conditions locales et le re-calibrage des niveaux de risques ont été appliqués. Mais ces résultats n'empêchent pas que la validation de la méthode permettrait d'améliorer l'analyse et la compréhension de ce phénomène dans les conditions locales. Identifier An unambiguous reference to the resource within a given context https://journals.univ-chlef.dz/index.php/natec/article/view/91 Language A language of the resource eng Publisher An entity responsible for making the resource available Hassiba Benbouali University of Chlef Relation A related resource https://journals.univ-chlef.dz/index.php/natec/article/view/91/64 Rights Information about rights held in and over the resource Copyright (c) 2020 Nature & Technology Journal https://creativecommons.org/licenses/by/4.0/deed.en Source A related resource from which the described resource is derived Revue Nature et Technologie; Vol. 12 No. 01 (2020); 30-37 Revue Nature et Technologie; Vol. 12 No 01 (2020); 30-37 2437-0312 1112-9778 Subject The topic of the resource Desrtification Desertification Désertification Désertification Title A name given to the resource Risques de désertification : Sensibilité et limites de la méthode Medalus dans les zones semi-arides (centre de la Tunisie). Desertification Risks: Sensitivity And Limits Of The Medalus Method In Semi-arid Areas (center Of Tunisia). Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Peer-reviewed Article