JFAS_Vol 13 N 02

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POTENTIAL EVAPOTRANSPIRATION ESTIMATE IN NORTHERN ALGERIA
(university of el oued/جامعة الوادي, 2021-01-01) Ladjel, M
The 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.
SYNTHESIS, CHARACTERIZATION, CORROSION INHIBITION OF MILD STEEL BY TWO SCHIFF BASES IN HCL AND DENSITY FUNCTIONAL THEORY STUDIES
(university of el oued/جامعة الوادي, 2021-05-01) Madani, A; Sibous, L; Bentouhami, E
In this study, two Schiff bases namely (E,E)-N,N’-biphenyl-4-4’diylbis[1-(furan-2-yl)methanimine] (BEFu) and3-[(Z)-N(4’-aminobiphenyl-4yl)ethanimidoyl]-2-hydroy-6-methyl-4H-pyran-4-one (BEDh) have been synthesized and characterized using UV-visible, FTIR, and NMR techniques. The corrosion inhibition study of BEFu and BEDh was investigated for mild steel corrosion in 1M hydrochloric acid medium using weight loss method, potentiodynamic polarization, EIS techniques, and Density Functional Theory (DFT). The results showed that the inhibition efficiency increasing with concentration and revealing a mixed-type inhibitor of predominantly anodic type. To explain the inhibition abilities of those molecules adsorbed on the mild steel surface, quantum chemical calculations have been performed using DFT. The HOMO and LUMO energies were calculated to determine the global reactivity indexes. The experimental and theoretical results were in good agreement
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, Dj
Describing 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.
Cr(III) and Cr (VI) REMOVAL FROM WASTE WATER BY AMBERLITE IRN150
(university of el oued/جامعة الوادي, 2021-05-01) Bounab, N. A; Boukhalfa, C
The aim of this work is the use of Amberlite IRN 150 resin in the removal of Cr (III) and Cr (VI) from tanning and chrom e plating waste water s respectively Removal experiments were carried out in ba tch Kenitics and equilibrium studies were undertaken using various models The obtained results show that the increase in pH implies an increase of Cr (III) removal in tanning water and a decrease of Cr (VI) removal in chrome plating water. In the two cases , t he exchange kinetics is well described by the second order model . The removal of the two ions by IRN150 is not limited by intraparticular diffusion. The Freundlich isotherm is more suitable for describing Cr(III) removal in tanning water . H owever, in ch rom e plating water , Cr (VI) removal is better described by the Langmuir isotherm.
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, N
The 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.
QUALITIES OF THE GREEN LANDSCAPE IN PRIMARY SCHOOLS, DEFICIENCIES AND OPPORTUNITIES FOR HEALTH OF THE PUPILS
(university of el oued/جامعة الوادي, 2021-05-01) Tafahomi, R
The aim of this research is to analyze and demonstrate the deficiencies and opportunities of the green landscape in pr imary schools, Kigali, Rwanda. Despi te the recent research on significant positive effects of green spaces on public health such as mental, physical, and social, the landscape design with green elements has less taken into account as a priority in schools. The methodology of this research wa s based on the qualitative method by applying structured observation, photography, and site analysis techniques. The findings identify that the schools face the deficiencies to apply hardscape, softscape, and interaction of the pupils with the green spaces . Despite the open spaces in the schools for design as great opportunities, the deficiencies of hardscape, softscape, and limited accessibility of the pupils to the green spaces could influence the general health of the users.
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, S
T 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.
OPTIMISATION AND MODELING OF FLUORIDE REMOVAL BY ELECTROCOAGULATION IN A CONTINUOUS FLOW BIPOLAR REACTOR
(university of el oued/جامعة الوادي, 2021-05-01) Benderrah, T; Djedid, M; Naceur, M.W; Benalia, M
In this study an experimental design was employed to investigate the effects of different operating conditions on the removal of fluoride by electrocoagulation with aluminum electrodes. Box-Behnken design was then used for optimizing and modeling the electrocoagulation process and for evaluating the effects and interactions of variables: current density (i, A/m2), flow rate (Q, mL/min), and initial fluoride concentration (C0, mg/L). The proposed model fitted very well with the experimental data. R2 adjusted correlation coefficients (AdjR2: 0.98) for fluoride removal efficiency showed a high significance of the model. The model predicted for a maximum removal of fluoride (95.07%) at the optimum operating conditions (120 A/m2, 120 mL/min and 30 mg/L) after the EC process was 94.76% at the same optimum operating conditions
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, N
In 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.
WATER QUALITY CONTROL OF THREE SITES AT KEDARRA BARRAGE
(university of el oued/جامعة الوادي, 2021-05-01) Ghemmit-Doulache, N; Ouslimani, N
S 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 treatment
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 L
Energy 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.
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, K
In 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 activity
ASSESSMENT OF THE COMPRESSIVE STRENGTH O F CONCRETE BY THE SONREB TESTS : CASE OF THE POLE MOSQUE OF ORAN
(university of el oued/جامعة الوادي, 2021-05-01) Bousmaha, S; Cheikh-Zouaoui, M; Chergui, S
The non destructive evaluation of concrete is a vital part and an active and interesting field of research which can be a fundamental step in the process of heritageization of contemporary architecture, especially for the n e w large mosques in Algeria. Th e present study consists of the assessment of the concrete structure of the pole mosque of Oran by applying a protocol of non destructive testing of the compressive strength based on the combination of two tests of the SonReb approach; ultrasonic pulse vel ocity (UPV) and rebound index (RN). This method not only makes it possible to check the physical state of the structure, but also to collect the information necessary to predict the possibility of use in the future. The resul t s of the experimental tests ob tained indicate a very acceptable quality of the conc rete of the pole mosque of Oran
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, Dj
Describing 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.
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 L
Energy 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.
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, S
The 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.
INHIBITING ALUMINIUM ACID CORROSION USING LEAVES EXTRACT OF GUIERA SENEGALENSIS
(university of el oued/جامعة الوادي, 2021-05-01) Ayuba, A. M.; Abubakar, M
The 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.
BIOMETRIC VERIFICATION SYSTEM BASED ON HAND GEOMETRY
(university of el oued/جامعة الوادي, 2021-05-01) Harrar, K
B 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%.
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
T 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.
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, Md
There 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 ld

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