JFAS_Vol 11 N 01

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EXAMINING THE EFFECTS OF HYDRO-ALCOHOLIC EXTRACT OF MOMORDICA CHARANTIA FRUIT ON AVOIDANCE MEMORY ALTERATIONS IN MICE USING STEP-THROUGH MODEL
(university of el oued/جامعة الوادي, 2019-01-01) Miri, A; Askari, S. F; Shahraki, E
Medicinal plants have been, and still are, of a particular value and importance for public health provision in terms of both treatment and prevention of diseases. Among the effects of such plants are the impacts on the memory and learning process. In this study, the effect of hydroalcoholic extract of Momordica charantia on the avoidance memory alterations was investigated in mice using the step-through model. The hydroalcoholic extract of the soaked plant was administered to the mice at doses of 10, 25, 50, 100, and 200 mg/kg by gavage (intragastric tube) method. In comparison with the control group receiving only drinking water, the highest memory improvement was observed at a dose of 25 mg/kg. The results of interferential intraperitoneal administration of scopolamine and the extract gavage at a dose of 25 mg/kg indicated the ability to restore scopolamine-induced memory corruption by the total extract of M. charantia.
EFFECTS OF MAGHNITE NANOCLAY MODIFICATION AND COMPATIBILIZATION ON THE PHYSICAL AND MORPHOLOGICAL PROPERTIES OF POLY(VINYL CHLORIDE)/POLY(ETHYLENE-CO-VINYL ACETATE) BLENDS
(university of el oued/جامعة الوادي, 2019-01-01) Bouaziz, I; Doufnoune, R; Haddaoui, N; Benachour, D; Baltä-Calleja, F. J
In this research work poly(vinyl chloride)(PVC), ethylene vinyl acetate copolymer (EVA), and Maghnite nanoclay (MGT) were used to prepare PVC/EVA nanocomposites. The MGT clay was intercalated with octadecyltrimethylammonium chloride (ODTMA) and grafted with γ-aminopropyltriethoxysilane (APTES). The blend nanocomposites were prepared through the melt mixing of PVC/EVA blend at a weight ratio of 50/50 (wt%/wt%) with 20 wt% of compatibilizer; ethylene vinyl acetate grafted with an alcohol (EVA-g-OH) and 3 wt% of modified MGT clay using a Brabender plastograph. The nanocomposites so prepared were characterized using X-ray diffraction, TGA/DTA, mechanical tests and SEM. The results showed that when PVC was blended with EVA, with the modified MGT and with the compatibilizer, synergistic effects in the thermal stability and mechanical properties were observed.
A NUMERICAL AND EXPERIMENTAL STUDY OF URBAN GEOMETRY’S CONTROL OF WIND MOVEMENTS IN OUTDOOR SPACES. CASE OF A HUMID CLIMATE
(university of el oued/جامعة الوادي, 2019-01-01) Bouketta, S; Bouchahm, Y
Many studies have shown the impact of urban geometry on thermal comfort in outdoor spaces, but few of them have addressed the control of adverse wind effects in urban humid areas. This work deals with this specific context. It aims to highlight the role of the geometry of urban spaces in the control of the wind, mainly in the city of Jijel (Algeria), where wind is the essential element to be reckoned with. It is shown concretely into in-situ measurement campaigns (taken in winter 2016 and summer 2017) during which microclimatic parameters were recorded simultaneously for tow case studies with distinct geometries spaces between the U-shaped and L-shaped buildings. More precisely, the first step is to identify the most important geometrical parameters and then describe the wind behaviour by numerical simulation with the help of the “Envi-met V4” software. The results show that the H/w ratio is the geometrical parameter to take into account in order to control the wind
DEFORMATION MECHANISMS, TIMING AND SHEAR SENSE ANALYSIS OF PART OF THE PRECAMBRIAN TERRAIN OF SOUTHWESTERN NIGERIA
(university of el oued/جامعة الوادي, 2019-01-01) Adedoyin, A. D; Ebiri, E. P; Alebiosu, M. T
The study area is part of the polycyclic Precambrian Basement Complex of southwestern Nigeria, which comprises meta-sediments and granitoids of varying compositions. The area was primarily deformed into a large-scale sheeted structure, which was sequentially followed by developments of first and second phases of folding that interfered with each other. Brittle to semi-ductile shear deformations, initiated by an ESE-directed transport of the hanging wall of a major NE-SW trending low-angle normal fault culminated in the third phase of fold and development of widespread shear zones. Latter phases of deformation resulted in rotation of finite strain axis relative to the instantaneous strain during a non-coaxial progressive simple shear deformation. We posit that the dominant terminal mechanism of deformation in the area is the late-kinematic progressive heterogeneous simple shear during the late- to post-Pan African orogenesis.
EFFECT OF SALINITY ON THE PHYSIOLOGICAL BEHAVIOR OF THE OLIVE TREE (VARIETY SIGOISE)
(university of el oued/جامعة الوادي, 2019-01-01) Boualem, S; Boutaleb, F; Ababou, A; Gacem, F
Salinity is a major problem directly affecting the ecological balance and the development of agriculture in the Mediterranean basin, particularly North Africa. This phenomenon is considered as the most important abiotic factor limiting crops growth and productivity, degrading and polluting soils in arid and semi-arid. In order to study the influence of salinity, on the physiological parameters and to assess the potential of adaptation of the olive tree in a saline environment, three parcels containing the Sigoise variety and subject to different degrees of salinity were selected: Parcel 1 (non-saline); Parcel 2 (saline); Parcel 3 (very saline). Under a saline constraint, the results showed two contrasting tendencies, an intense increase in the content of proline, sodium (Na+) and chlorophyll (b), while water content, potassium and chlorophyll (a) decreased strongly with increasing salinity.
MANAGEMENT OF A MAIN CITRUS PEST BLACK PARLATORIA SCALE PARLATORIA ZIZIPHI (LUCAS) (HEMIPTERA: DIASPIDIDAE) IN THE MEDITERRANEAN BASIN
(university of el oued/جامعة الوادي, 2019-01-01) Haddad, N; Sadoudi, D; Garcia-Mari, F
The scale of black parlatoria, Parlatoria ziziphi (Lucas) (Hemiptera: Diaspididae), causes considerable damage to citrus fruits in the Mediterranean basin. For well managed this pest, we carried out a thorough ecological and behavioral study on the preference of localization and fixation of this pest on the citrus tree throughout the year for two years in six different citrus orchards to know: the lemon, the clementinier and the orange variety Thomson and washington in Tizi Ouzou, sub-humid region of the Mediterranean, in the North of Algeria. This new information on the biology and behavior of P. ziziphi could be applied to the definition of a better pest management strategy and to improvement of sampling methodology for monitoring this devastating pest by the good recognition of its place of infestations.
COMPARATIVE STUDY ON THE USE OF ZEOLITE AND PRECIPITATION AGENTS TO RETARD SCALE FORMATION IN THE SEAWATER PRETREATMENT PROCESS
(university of el oued/جامعة الوادي, 2019-01-01) Dahmani, K; Belloul, M; Kherroub, D. E
The scale formation in heat transfer surfaces in seawater desalination plants by multi stage flash processes (MSF). This scale is formed during the precipitation of salts containing in seawater such as calcium and magnesium carbonates. The pretreatment is based on the removal of the calcium and magnesium cations from seawater, using zeolite as cation exchanger and precipitator agents as: lime, soda ash, and mixture of soda ash with soda. DRX, SEM, and EDX analyses were employed to characterize the zeolite before and after pretreatment so as to demonstrate the change composition on the zeolite surface. The results revealed that the pretreatment by a mixture of soda ash (13g/L) and soda (4g/L) favor the precipitation of calcium and magnesium ions. The calcium and magnesium ion concentrations in seawater were reduced, respectively, from 620 mg/L and 644 mg/L to 5 mg/L and 9.11 mg/L
BRANCH AND BOUND METHOD TO RESOLVE NON CONVEX QUADRATIC PROBLEMS OVER A RECTANGLE OF
(university of el oued/جامعة الوادي, 2019-01-01) Gasmi, B; Benacer, R
We present in this paper a new convergence of the Branch and Bound method to resolve a class of non convex quadratic problems over a rectangle of Rn . We construct an approximate convex quadratics functions of the objective function in ordre to determinate the lower bound of the global optimal value of the original problem (NQP) over each subset of the feasible domain of the optimization problem. We applied the partition and reduction technical on the feasable domain t o accelerate the convergence of the proposed algorithm. Finally, we give a simple comparison between this method and another method wish has the same principle with examples.
COMMUNICATION OF MATLAB GUI AND ANSYS MAXWELL: AN EDUCATION TOOL FOR TUBULAR LINEAR GENERATOR
(university of el oued/جامعة الوادي, 2019-01-01) Arslan, S; Gürdal, O; Akkaya Oy, S
In this study, analytical calculations of a tubular linear generator model are performed by using Matlab Gui for free-piston applications. A training tool including the processes of design of linear generator, sizing with the analytical equations and analyzing with the finite elements methods was suggested. Geometric dimensions in Matlab Gui interface are solved by transferring automatically to finite element model Ansys-Maxwell 2D-rz plane. The results of analytical analysis are in concordance with the results of finite elements. In addition, Ansys-Maxwell Script and Matlab codes are given in the appendix.
DESIGN AND IMPLEMENTATION OF NONLINEAR PID CONTROLLER FOR A QUADROTOR CONTROL
(university of el oued/جامعة الوادي, 2019-01-01) Medjdoubi, O; Hazzab, A; Alalei, A
The following article represents the control of an unmanned airborne vehicle (Quadcopter), using nonlinear PID controllers in order to control the altitude, as well as the attitudes (pitch, roll and yaw) of the Quadcopter. Two approaches have been proposed for adjusting the parameters of a PID controller. Foremost, the PID controller gains are settled in an ideal way by using a reference model strategy. In the moment approach, these parameters are adjusted Nonlinear PID. MATLAB/Simulink has been utilized to test and compare the execution of the controllers gotten. The obtained results using the nonlinear PID controllers show the efficiency of the proposed controllers it presents a response with less error and minimal over shoot compared to the results of classical PID controller.
SYNTHESIS, ELECTROCHEMICAL AND HETEROGENEOUS ELECTROCATALYTIC BEHAVIORS OF A NOVEL NON SYMMETRICAL COPPER(II) COMPLEX
(university of el oued/جامعة الوادي, 2019-01-01) Bounab, N; Ourari, A; Derafa, W; Aggoun, D
We describe in this paper the synthesis of new unsymmetrical tetradentate copper(II) Schiff base complex, prepared from tridentate Schiff base ligand (HL) and pyridine molecule. This new copper complex was identified by various physicochemical characteristics such as elemental analysis (EA), FT-IR, UV-Vis, XPS analysis and thermogravimetry (TG/DTG). The electrochemical behavior of the copper(II) complex was investigated by cyclic voltammetry in N,N-dimethylformamide (DMF). These experiments have been allowed to obtain new conducting polymeric films, prepared by successive cycling at the suitable potentials. These polymeric films containing metallic centers were studied to evaluate their electrocatalytical performances in which copper (II) ions were used as electrocatalysts in the heterogeneous conditions for the electroreduction of 1,4-dibromobutane.
AGRONOMIC CHARACTERIZATION OF SELECTED CLONES OF TUNISIAN TABLE OLIVE (Olea europaea. L) VARIETY ‘MESKI
(university of el oued/جامعة الوادي, 2019-01-01) Ben Amar, F; Arfa, H; Yengui, A
The clonal selection carried out within the Tunisian olive table variety Meski allowed to select three more productive clones. The agronomic characterization of these clones was carried out during four years (2012 to 2015). The analysis of variance revealed that the clonal effect was not significant for the fruit pomology indicating a high homogeneity of the selected clones and significant only for olive production. The variation in endocarp weight and fruit specific density (weight/volume) was very low between years and these parameters could be considered as characterization criteria for the Meski variety. The correlations between the pomological parameters show that the variations are proportional between the fruit and the pulp weights and the volume. Olive production is negatively correlated with fruit and pulp weights. The hierarchical classification shows that the three clones are grouped mainly according to the year. Principal component analysis shows that the first component accounts for 66% of the total variability and is positively correlated with fruit and pulp weights and volume.
PHYSICO-CHEMICAL PROPERTIES OF SILURIAN HOT SHALE IN AHNET BASIN, ALGERIA (CAS STUDY WELL ASS-1)
(university of el oued/جامعة الوادي, 2019-01-01) Kadri, M. M
The prediction of hot shale interval in Silurian formation in a well drilled vertically in Ahnet basin Is by logging Data (Resistivity, Gamma Ray, Sonic) with calculation of total organic carbon (TOC) using ∆ log R Method. The aim of this paper is to present Physico-chemical Properties of Hot Shale using IR spectroscopy and gas chromatography-mass spectrometry analysis, This mixture of measurements evaluation and characterisation show that the hot shale interval located in the lower of Silurian, the molecules adsorbed at the surface of shale sheet are significantly different from petroleum hydrocarbons this result are also supported with gas-liquid chromatography showed that the study extract is a hydroxypropyl
SIMULATION OF PHOTON ATTENUATION THROUGH ALUMINIUM USING E-RADIATION SIMULATOR (EGS5 CODE)
(university of el oued/جامعة الوادي, 2019-01-01) Sabri, A.H.A; Tajudin, S.M
Radiation education is necessary for a wide variety of people, such as radiation workers and students of medical imaging. In order to understand radiation behaviour inside the material, we have developed an e-radiation simulator by using Monte Carlo simulation programme (EGS5 code). Anyone who has no programming knowledge will able to simulate photons in a material through this easy to use web-based environment radiation simulator. To validate our simulator, we calculate photon linear attenuation coefficient (µ) of an aluminium material which commonly used as a filter in diagnostic radiology. For the sake of comparison, we calculate at high energy photon of 662 keV to compare our results of µ with the XCOM database and literature. Consequently, the results from the developed simulator comparable with the database and literature for the case of photon attenuation study.
ELECTROCHEMICAL BEHAVIOR AND ANALYSIS OF MONURON HERBICIDE IN WATER USING VOLTAMMETRIC METHODS AND PREACTIVATED CARBON PASTE ELECTRODE
(university of el oued/جامعة الوادي, 2019-01-01) Abdou, I; Bouhidel, K. E
This research work dealt with the electrochemical behavior and voltammetric analysis of monuron, a phenyl urea herbicide. The sensitive enhancement of the monuron electrochemical signal, using a pre-activated carbon paste electrode, and the explanation of its mechanism were the main findings of this study. Unlike most used herbicides (linuron, diuron, fenuron, etc), monuron was rarely studied before by electrochemical methods. Indeed the square wave voltammetry allowed to optimize and to analyze monuron in water samples; the results showed two linear ranges of concentration: from 1.98 to 0.39 µg mL-1 and from 0.35 to 0.08 µg mL-1, with detection and quantification limits of LOD= 0.016 µg mL-1 and LOQ= 0.054µg mL-1 respectively. Besides these quantitative results, the anodic oxidation of monuron has been explained by an irreversible adsorption-controlled process, following a “one electron – one proton” mechanism
THE ORIGINALITY OF OASIS OF SAOURA IN SOUTH-WEST OF ALGERIA
(university of el oued/جامعة الوادي, 2019-01-01) Rezzoug, C; Remini, B
For centuries the oases of the Saoura continue to manage critical situations of drought and the hostility of the Algerian Sahara through the rational exploitation of water, a rare and precious source of traditional irrigation techniques have proved their efficiency. The use of new groundwater drainage systems of drilling, and the lack of effective management of the Foggaras, has made this system lose its value, deteriorate and let the palm groves disappear. More than 80% of these systems have been abandoned in recent years. With increasing urbanization, population growth, climate change and the uncontrolled proliferation of motor pumps, the level of the water table is lowered and the quality of the water is degraded. The foggaras have gradually been abandoned, which leads to the degradation of the gardens and the old oasis.
EVALUATION OF THE QUALITY OF AN INTELLIGENT AND SUSTAINABLE TOURIST URBAN SYSTEM IN TLEMCEN
(university of el oued/جامعة الوادي, 2019-01-01) Moulay, N; Bekkouche, A
This article proposes the evaluation of a tourist urban system "Plateau LallaSetti, Tlemcen" in a global framework for the elaboration of a territorial diagnosis with a view to taking charge of urban complexity. The integrated "Quality Safety Environment" approach, which is very suitable for dealing with the complexity of urban systems, aims to introduce the site to urban sustainability by putting the principles of sustainable development by involving all stakeholders in decision-making through participatory governance by introducing the notion of urban intelligence. This approach guarantees a consensus upstream of the decision-making process, reducing the likelihood of conflict situations linked to contradictory positions of its actors compared the main orientations governing the urban project.
REVIEW ON THERMAL INSULATION OF BUILDINGS WITH PHASE CHANGE MATERIALS: INCORPORATION METHODS AND APPLICATIONS
(university of el oued/جامعة الوادي, 2019-01-01) Sarri, A; Bechki, D; Boughali, S; Bouguettaia, H
Reducing energy consumption is an increasingly important issue for the residential sector. As a result, attention to thermal insulation systems for buildings has increased in recent years. The use of phase change materials (PCMs) is an attractive way for the development of energy-efficient buildings by integrating with the walls, ceiling and floor, which offers considerable possibilities for insulation and to ensure a certain thermal comfort, because of their high storage density. This paper summarizes the essential knowledge on solid-liquid phase change theory, PCM classification, some previous work on storage of latent thermal energy in buildings, covering experimental and numerical studies with different applications of PCMs to buildings.
EFFECT OF SALINITY ON THE PHYSIOLOGICAL BEHAVIOR OF THE OLIVE TREE (VARIETY SIGOISE
(university of el oued/جامعة الوادي, 2019-01-01) Boualem, S; Boutaleb, F; Ababou, A; Gacem, F
Salinity is a major problem directly affecting the ecological balance and the development of agriculture in the Mediterranean basin, particularly North Africa. This phenomenon is considered as the most important abiotic factor limiting crops growth and productivity, degrading and polluting soils in arid and semi-arid. In order to study the influence of salinity, on the physiological parameters and to assess the potential of adaptation of the olive tree in a saline environment, three parcels containing the Sigoise variety and subject to different degrees of salinity were selected: Parcel 1 (non-saline); Parcel 2 (saline); Parcel 3 (very saline). Under a saline constraint, the results showed two contrasting tendencies, an intense increase in the content of proline, sodium (Na+) and chlorophyll (b), while water content, potassium and chlorophyll (a) decreased strongly with increasing salinity.
INFLUENCE OF PHENOLIC COMPOUNDS ON ANTIOXIDANT CAPACITY OF LEAVES EXTRACTS OF MORINGA OLEIFERA FROM TAMANRASSET REGION
(university of el oued/جامعة الوادي, 2019-01-01) Djemoui, D; Saidi, M; Rahmani, Z; Djemoui, A
In the present research the crude extract and all fractions of Moringa oleifra leaves grown in Tamanrasset, were examined for its antioxidant activities by using three different assays such as DPPH scavenging activity, superoxide anion scavenging activity and phosphomolybdenum capacity.The quantitative estimation of total phenolics, flavonoids and tannins content additionally was calculated by spectrophotometric methods.The results showed that the extracts contained total phenolic compound at concentration of 32.985±0.07 to 309.418 ± 0.71 (mg GAE/g EW) and higher total flavonoids contents of 5.192 ± 0.17 to 44.695 ± 0.23 (mg QE/g EW), for total tannins contents of 3.864 ±0.07 to 15.148 ± 0.66 (mg/g). It also this experiment found out that each extract confirmed a good antioxidant. Consequently, it can be concluded that the phenolic compounds content may be answerable for the good activities of Moringa oleifra leaves.

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