JFAS_Vol 13 N 02
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Item WATER QUALITY CONTROL OF THREE SITES AT KEDARRA BARRAGE(university of el oued/جامعة الوادي, 2021-05-05) Ghemmit-Doulache, N; Ouslimani, NS tudy aim is to monitor water quality at three sites at Keddara barrage which located on territory of Boumerdes Algeria . Physico chemical, bacteriological and heavy metal analyses were carried out on waters feeding barrage site A, within barrage site B and thos e leaving barrage corresponding to pumping waters site C. Physical qualities of all three waters largely meet WHO standards. Chemical qualities Results showed that hardness is greater at site C . A mineralization with low nitrate, chloride, phosphate and am monium contents. DCO/DBO 5 ratio 3 for all three sites )), indicating that source of water pollution is of organic origin Analysis results of all three samples by SAA revealed traces of heavy metals which confirm good water quality. Keddar a barrage waters are charged with total coliform ba cteria, enterococcus and Escherichia coli, so these waters require bacteriological treatmentItem A MACROFORM ANALYSIS TO DESCRIBE THE CITY MORPHOLOGICAL COMPACTNESS FACING THE URBAN SPRAWL PHENOMENON CASE OF BEJAIA CITY(university of el oued/جامعة الوادي, 2021-05-01) Tebbane Bouktit, K; Alkama, DjDescribing the morphological reality of urban areas is essentia l for any the city ’s sustainability project. Through a comparative analysis based on a series of indices and their confrontation according to the multivariate principal component analysis, we have tried to evaluate from the view point of urban sprawl, the morpho logical compactness of the Algerian coastal Bejaia town. The latter is known to be characterised by physical and natural constraints which influence spatial growth and the process of urban development. The main objective of this article is to establi sh the macroforms classification th at constitute Bejaia city. The configuration analysis ’s results of its urban spots have shown an excessive spread of the agglomeration on the Bejaoui coast, which negatively impacts the city’s sustainability.Item COMPARATIVE STUDY ON THE ENERGY POLICIES FOR BUILDING SECTOR IN ALGERIA AND FRANCE, IN ORDRE TO IMPROVE OUR POLICY(university of el oued/جامعة الوادي, 2021-05-01) Meftah, N; Mahri, Z LEnergy policy plays an important role in confronting the energy crisis, in particular in the buildings sector which is responsible for 40% of consumption in Algeria and 42% in France, in Algeria the building sector is in full expansion following an accumulated delay of Several decades of lack of housing, committed to an energy policy will allow the preservation of natural resources, in France the objective and reduce their energy dependence and energy bill and allow the money saved to finance other projects and economic activities , it would be useful to compare the energy policies of Algeria and France to find the strengths and weaknesses of each policy,based on the comparison, recommendations were made to improve our policy and tackle barriers to achieve our goals.Item THE INFLUENCE OF RADICAL N, O AND O3 IN THE REDUCTION OF NITROGEN OXIDES IN A CORONA DISCHARGE(university of el oued/جامعة الوادي, 2021-05-01) Ferouani, A. K; Lemerini, M; Sahlaoui, M; Khaldi, M.F.Z; Boumellah, Y; Askri, ST his work presents a chemical kinetic analysis of different species involved in nitrogen oxygen mixed gas by a Corona Discharge ( at room temperature and atmospheric pressure. This study takes into account 20 di fferent chemical species reacting following 1 5 0 selected chemicals reactions. The reaction rate coefficients are taken from the literature and the density is analyzed by the continuity equation without the diffusion term. Many work s have study removal NO x and they have showing the role of N, O and O 3 radicals. So the aim of this simulation is to complete these studies by analyse of various plasma species under different reduced electric field: 100 200 Td. We analyse especially, the tempor al depopulation rate evolution (10 9 10 3 s) of NO x . We have found that the rate depopulation of NO and NO 2 is substantially affected by the reduced electric field rise from the initial value of 100 Td up to 200 Td. Thus, we have obtained in our sim ulation 2% of NO removal fo r 100 Td against 96% for 200 T d . This allows us the important role played by the reduced electric field.Item COMPUTATIONAL SCREENING AND QSAR STUDY ON A SERIES THEOPHYLLINE DERIVATIVES AS ALDH1A1 INHIBITORS(university of el oued/جامعة الوادي, 2021-05-01) Fadel, F Z; Tchouar, N; Belaidi, S; Soualmia, F; Oukil, O; Ouadah, KIn the present study, we explored a series of molecules with anticancer activity, so that qualitative and quantitative studies of the structure-activity relationship (SAR/QSAR) were performed on seventeen theophylline derivatives. These are inhibitors of ALDH1A1. The present study shows the importance of quantum chemical descriptors, constitutional descriptors and hydrophobicity to develop a better QSAR model, whose studied descriptors are LogP, MW, Pol, MR, S, V, HE, DM, EHOMO and ELUMO. A multiple linear regression (MLR) and artificial neural networks (ANN) procedure was used to design the relationships between molecular descriptors and the inhibition of ALDH1A1 by theophylline derivatives. The validation and good quality of the QSAR model are confirmed by a strong correlation between experimental and predicted activityItem WATER QUALITY CONTROL OF THREE SITES AT KEDARRA BARRAGE(university of el oued/جامعة الوادي, 2021-05-01) Ghemmit-Doulache, N; Ouslimani, NS tudy aim is to monitor water quality at three sites at Keddara barrage which located on territory of Boumerdes Algeria . Physico chemical, bacteriological and heavy metal analyses were carried out on waters feeding barrage site A, within barrage site B and thos e leaving barrage corresponding to pumping waters site C. Physical qualities of all three waters largely meet WHO standards. Chemical qualities Results showed that hardness is greater at site C . A mineralization with low nitrate, chloride, phosphate and am monium contents. DCO/DBO 5 ratio 3 for all three sites )), indicating that source of water pollution is of organic origin Analysis results of all three samples by SAA revealed traces of heavy metals which confirm good water quality. Keddar a barrage waters are charged with total coliform ba cteria, enterococcus and Escherichia coli, so these waters require bacteriological treatmentItem STUDY OF THE EXPERIMENTAL APPROACH OF THE RELATIVE THRESHOLD OF THE HYDRAULIC JUMP EVOLVING IN A RECTANGULAR CHANNEL OF COMPOSED SECTION WITH ROUGH MINOR BED(university of el oued/جامعة الوادي, 2021-05-01) Djamaa, W; Ghomri, A; Khechana, SThe aim of this experimental study is to analyze the ratio of the relative t hreshold of the hydraulic jump evolving in a rectangular channel composed with a rough minor bed. functional relations, in dimensionless terms, as a function of the Fr oude number and of the roughness were obtained. Indeed, for a fixed initial height h 1 , th e increase in the incident Froude number causes both the displacement of the step downstream. therefore, it corresponds to a length Lj of the step and Lr of the roll, as well as a height h 2 downstream of the step and a height S of the threshold.Item THE EFFECT OF ENVIRONMENTAL CONCERN ON RENEWABLE ENERGY AWARENESS, PERCEIVED BENEFIT AND INTENTION TO USE(university of el oued/جامعة الوادي, 2021-05-01) Ari, E; Yilmaz, VEnergy use-related environmental and social concerns and problems have led to the development of renewable (RE) energy types such as wind, solar, hydraulic, and geothermal energy. Increasing environmental concerns, as well as public awareness and positive attitudes towards sustainable energy types, have played an important role in this development. The present study investigated the effects of the mentioned environmental concerns on the attitudes towards renewable energy and renewable energy usage intention with a proposed structural model. In the first part of the proposed model, the effect of environmental concerns on the awareness and perceived benefits of RE, and in the second part, the effect of awareness and perceived benefits of RE on the RE usage intention was examined. Structural Equation Modelling (SEM) was used to test the model. Regarding the fitness of the model, the chi-square value was calculated as 141.77, and the (χ2/df) value as 2.36. Analysis results demonstrated that one unit increase in environmental concerns would increase awareness of RE by 0.63 and perceived benefits by 0.51 unit. It was also found that awareness of RE would increase the perceived benefits of RE and that especially the increase in awareness positively would affect RE usage intention.Item THE EFFECT OF BUILDING HEIGHTS ON OUTDOOR WIND ENVIRONMENT OF THE RESIDENTIAL SECTOR / CAS OF EL EULMA CITY, Algeria(university of el oued/جامعة الوادي, 2021-05-01) Boudoukha, A; Zemmouri, NThe residential open spaces microclimate especially the wind environment, is widely affected by its surrounding buildings. This paper aims to assess the influence of residential buildings on urban microclimate in the North Est region of Algeria. This assessment performed using the in-situ measurements of different microclimate’s settings, during summer and winter. Comparing between two existing city housing blocks, the present study showed that, the higher one result lower temperatures outdoor spaces in winter and summer. Furthermore, the passage under the building improves the accessibility, the ventilation in the inside corner of the city block, but may increase the wind speed so it causes pedestrians discomfort and safety issues.Item TREND ANALYSIS OF EVAPORATION AND SOLAR RADIATION USING INNOVATIVE TREND ANALYSIS METHOD(university of el oued/جامعة الوادي, 2021-05-01) Ahmed, M.O; Ogedengbe, KAnalysis of trends in monthly evaporation and solar radiation in the face of climate change gives useful information for better planning and management of water resources. This paper examines the monthly evaporation and solar radiation trend using the recently developed innovative trend analysis method (ITAM). The monthly evaporation trend result shown that 75% of the months indicated decreasing trend with the month of February, March, August and April decreased significant at 0.1%, 10%, 10% and 5% significance level respectively. As regards solar radiation all the months indicated decreasing trend with January, July and October shown a decreasing trend at 5% significant level. By comparing the Mann-Kendall method with the ITAM the reliability of ITAM was ascertained. Hence, ITAM can be effectively utilized in climate change scenarios where useful information is needed for accurate management and planning of water resources.Item A MACROFORM ANALYSIS TO DESCRIBE THE CITY MORPHOLOGICAL COMPACTNESS FACING THE URBAN SPRAWL PHENOMENON CASE OF BEJAIA CITY(university of el oued/جامعة الوادي, 2021-05-01) Tebbane Bouktit, K; Alkama, DjDescribing the morphological reality of urban areas is essentia l for any the city ’s sustainability project. Through a comparative analysis based on a series of indices and their confrontation according to the multivariate principal component analysis, we have tried to evaluate from the view point of urban sprawl, the morpho logical compactness of the Algerian coastal Bejaia town. The latter is known to be characterised by physical and natural constraints which influence spatial growth and the process of urban development. The main objective of this article is to establi sh the macroforms classification th at constitute Bejaia city. The configuration analysis ’s results of its urban spots have shown an excessive spread of the agglomeration on the Bejaoui coast, which negatively impacts the city’s sustainability.Item ETHNOBOTANIC STUDY OF THE ATRIPLEX HALIMUS L. IN THE REGION OF SIDI BEL ABBES- WEST ALGERIAN(university of el oued/جامعة الوادي, 2021-05-01) Hellal, T.; Benchohra, H. A; Mederres, LThe Atriplex halimus L, whose vernacular name in Algeria « Guettaf », is a shrub widespread in the Sidi Bel Abbes region in western of Algeria. It is a plant species of the Chenopodiaceae family. It is in high demand by the population of the wilaya of Sidi Bel Abbes for the treatment of some diseases. These include the genitourinary system, the digestive tract and its annexes, the cardiovascular and respiratory system. It is even indicated as hypoglycemic in diabetics. The objective of our study is an ethnobotanical investigation of the plant in question, where we will try to identify its common uses by the population of the region of Sidi Bel Abbes for healing purposes.Item COMPARATIVE STUDY ON THE ENERGY POLICIES FOR BUILDING SECTOR IN ALGERIA AND FRANCE, IN ORDRE TO IMPROVE OUR POLICY(university of el oued/جامعة الوادي, 2021-05-01) Meftah, N; Mahri, Z LEnergy policy plays an important role in confronting the energy crisis, in particular in the buildings sector which is responsible for 40% of consumption in Algeria and 42% in France, in Algeria the building sector is in full expansion following an accumulated delay of Several decades of lack of housing, committed to an energy policy will allow the preservation of natural resources, in France the objective and reduce their energy dependence and energy bill and allow the money saved to finance other projects and economic activities , it would be useful to compare the energy policies of Algeria and France to find the strengths and weaknesses of each policy,based on the comparison, recommendations were made to improve our policy and tackle barriers to achieve our goals.Item FLAVONOID CONTENT AND ANTIOXIDANT ACTIVITY N OF DIFFERENT ORGANIC CRUDE EXTRACTS OF THE STEM OF SOLANUM NIGRUM L. BY ELECTROCHEMICAL METHOD(university of el oued/جامعة الوادي, 2021-05-01) uediri, I. G; Boubékri, C; mara, SThe present research aim ed to quantify the total flavonoid content and antioxidant properties in the different crude extract of the stem of Solanum nigrum that grow in southern Al geria. The results showed that EtOAc extract showed the highest flavonoid content ( 18.41 0.023 mg Q E/g). The electrochemical behavior of the chloroform , ethyl acetate and n butanol extracts were studied and indicated that a ll extracts were elec troactive a nd possess antioxi dant activity, chloroform extract showed the highest capacity ( 9.58 0.010 mg/g it has b een shown that these samples showed scavenging ability on superoxide anion produced by electrochemical reduction of oxygen. T he chlorofo rm extract was t he most efficient extract presenting the lowest I C 50 values (0.664 mg/ The bindin g cons tant (K b ) of the reaction and the change in free energy (ΔG) were calculated.Item BIOMETRIC VERIFICATION SYSTEM BASED ON HAND GEOMETRY(university of el oued/جامعة الوادي, 2021-05-01) Harrar, KB iometric systems ar e widely us ed in medium and low security applications. V erification systems based on the geometry of the hand utilize some geometric al characteristics of the hand including measurements of fingers, shape of the palm , etc. In this work, we have developed an unconstrai ned and contact based hand geometry verification system, using a combination of length and width of fingers. New measurements at different points of fingers were introduced in this paper to improve the performance of the recognition of persons . A total of 135 hand images were enrolled in this study. The Euclidean distance was used as a similarity function for different values of threshold. The proposed method was compared to state of the art approaches . The results obtained reveal the high perf or mance of th e proposed approach and outperformed the existing methods with an accuracy of Acc = 98.67%.Item INHIBITING ALUMINIUM ACID CORROSION USING LEAVES EXTRACT OF GUIERA SENEGALENSIS(university of el oued/جامعة الوادي, 2021-05-01) Ayuba, A. M.; Abubakar, MThe effects of Guiera senegalensis leaves extract as a potential green corrosion inhibitor for Aluminum (Al) in HCl acid solution was investigated using weight loss, LPR, FT-IR, and scanning electron microscope techniques at varying experimental conditions. The result indicates that the percentage inhibition efficiency increases with increase in concentration of the inhibitor and decreased with increase in temperature and immersion period. SEM images showed that the Al metal is protected by the inhibitor molecules, while FT-IR spectra indicates the mechanism of physical adsorption of inhibitors onto Al surface. LPR result showed that the inhibition efficiency of the inhibitor was moderate and act as mixed-type inhibitor. The data obtained from the thermodynamic parameters were fitted into various adsorption isotherms, Freundlich adsorption isotherm was observed to be the best fitted isotherm.Item NUMERICAL ANALYSIS OF AN INTEGRATED SOLAR COOLING AND HEATING SYSTEM IN INDI VIDUAL HOUSE IN DIFFERENT ALGERIAN CLIMATES(university of el oued/جامعة الوادي, 2021-05-01) Halloufi, O; Kaabi, A; Chougui, MdThere is a growing concern about energy use in Algeria. As fast as, building programs developed and living conditions improved the building sector makes big focus as a major energy end user. Main energy needs in build in gs are du e to heating and/or cooling, depending on local climatic conditions and type of building . In this paper the primary aim is to analyze two aspects heating load, and cooling load of an individual house energy consumpt ion in the major cl imatic z ones in Alg eria. The individual house use s heating and cooling solar system. The system performance is simulated using TRN sys program. This solar heating and cooling system incorporates between 89 m 2 and 170 m 2 of flat plate double glazed solar col lectors, which prov ide solar energy contribution during both the heating and cooling seasons; between 13.28 kW and 25.11 k W single effect, water lithium bromide (H 2 O/LiBr) absorption chiller This system is the sma llest solar heating and cooling system in the wor ldItem ENVIRONMENTAL IMPACT AND THERMO ENERGY PERFORMANCE OF RECYCLED MATERIALS : LIFE CYCLE ASSESSMENT APPLIED TO OFFICE BUILDING IN BISKRA CITY , ALGERIA(university of el oued/جامعة الوادي, 2021-05-01) Dakhia, A; Zemmouri, NIn order to reduce energy consumption of building s and their environmental impacts, it’s important to improve thei r e nerg y performance, and to have and evaluate sufficiently reliable multi criteria tools, to highlight the ir origins , throughout the building life cycle . Such impacts may be resulting from their construction, during exploit , renovation and at the end of l ife Th is work relates to a part of this action and seek s to derive results from a life cycle analysis comparing an office building envelope configuration , located in Biskra , a city south East Algeria characterized by hot and dry climate. Life Cycle A sses ment met hod was applied according to a standardized protocol ( ISO14000 14040)14040), promoting a better understanding of a building environmental impact throughout its life cycle . More , such method, allow s designers to make the most appropriate choice ( recycled mat eria ls, energy systems HVAC ) in relation to their objectives.Item POTENTIAL EVAPOTRANSPIRATION ESTIMATE IN NORTHERN ALGERIA(university of el oued/جامعة الوادي, 2021-01-01) Ladjel, MThe estimation of potential evapotranspiration requires data from measurements on specialized meteorological stations. The objective of this research is to establish a relationship between the values of potential evapotranspiration and air temperatures. Air temperatures are the generating and dominant factor. The research should lead to a simple formula, with the minimum number of parameters, allowing the ETP to be evaluated. The reference data are the values of the potential annual and monthly evapotranspiration, calculated by the modified Penman-Monteith method. On the basis of a suitable grapho-analytical analysis of the dependencies between the values of the potential evapotranspiration and the average air temperatures, we try to come up with a simple formula. The expected objective of obtaining a formula allows the ETP to be determined on the basis of standard temperature data, at any point in northern Algeria and throughout the Maghreb.Item CHARACTERIZATION OF SOME MORPHO PHYSIOLOGICAL RESPONSES, SEED CHEMICAL COMPOSITION AND GRAIN YIELD IN LENTIL VARIETIES (Lens culinaris Medik culinaris ) UNDER IRRIGATED AND RAINFED CONDITIONS(university of el oued/جامعة الوادي, 2021-05-01) Tahir, F; Hassani, A. K; Rezzoug, WIn Algeria, pulses are rain crops and are drought prone during their breeding period, resulting in a loss of yield. To this end, four varieties of lentil are tested for the ir drought tolerance through bio stress indicators in a field trial during the 2016/2017 crop year. Plants are grown under rained and irrigated conditions (irrigation rainfall), from the " stage to the "filling of grains" stage. The results ind icated that drought stress significantly decreased the relative water content ( leaf surfaces ( and grain yield of all genotypes tested ( The chemical composition of lentil seeds showed a reduction in starch content ( and an in crease in p rotein content ( Potassium ions and Sodium ions were present at the highest and lowest concentrations (747.91ppm 4.5ppm) in rainfall conditions, respectively, while Ca++, PO4 and Mg++ concentrations were not affected by drought. In c onclusion, the emphasis on bio indicators of water stress tolerance at the reproductive period is of great importance in minimizing grain yield losses and the quality of seeds.