JFAS_Vol 10 N 03

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USERS PERCEPTION OF A WIND TOWER FOR PASSIVE COOLING IN HOT DRY AREA OF SOUTHERN ALGERIA: A CASE OF OULED DJELLAL BISKRA
(university of el oued/جامعة الوادي, 2018-09-01) Torkia, A; Mazouz, S; Djouima, A
This paper is a synopsis of the results of a socio-cultural research on the wind tower as a sustainable cooling system, introduced in hot dry areas of southern Algeria. This element is integrated into 80 dwellings neighbourhood in Ouled Djellal. The wind towers were closed or removed by users despite their proven thermal performance by the authors [1]. This paper reveals the causes behind this rejection and users’ perception issues using in situ observation, interviews and survey. It unveiled that wind towers are useful, successful and are to be incorporated into new residential buildings’ designs only if incompatibility errors between design, implementation, use, and control system are avoided. The survey proved, the cultural acceptance of this new element in Algeria by the population surveyed of low to medium social class (56.82% yes and yes under conditions, of which 38.64% yes without conditions).
DETERMINATION OF PHENOLIC COMPOUNDS AND ANTIOXIDANT ACTIVITY OF WHITE HENBANE (HYOSCYAMUS ALBUS L.) PLANT TREATED BY KINETIN (K)AND 2,4-DICHLOROPHENOXYACETIC ACID (2,4-D) IN MILA, ALGERIA
(university of el oued/جامعة الوادي, 2018-09-01) Kadi, K; Hamli, S; Dib, D; Kabbour, R; Annahli, Y; Boukeria, S; Addad, D; Yahia, A
The present work deals with the evaluation of the antioxidant activity of the extracts of the white henbane (Hyoscyamus albus L.) of the solanaceae family, treated with phytohormones 2,4-Dichlorophenoxyacetic acid (2, 4-D) andKinetin (K)in doses 0, 10,20mg / l), widely used in traditional medicine and very rich in alkaloids. Preliminary phytochemical screening showed that treatment with phytohormones had no effect on the quality of the secondary metabolites. The results of the phytochemical study of the plant showed that the treatment with 2,4-D and K had a significant effect by reduction compared to the untreated plant on the phenolic compounds studied. The evaluation of the antioxidant activity in vitro was investigated by the DPPH trapping method and showed that the treatment with 2,4-D and K had a significant effect on the antioxidant activity so all the extracts of the various treatments of H. albus can act as radical scavengers
THEORETICAL APPROCH OF THE LIGAND COORDINATION IN Ln(tBuNC(CH3)NtBu)3 Ln = Y, La, Lu
(university of el oued/جامعة الوادي, 2018-09-01) Bouchekioua, S; Ouddai, N
The theoretical study carried by the quantum DFT method on the coordination mode of ligand amidinate to lanthanide in the series Ln(tBuNC(CH3)NtBu)3 where Ln = Y, La, and Lu, showed interesting results. A distorted trigonal prismatic structure (θ = 30°) is obtained. The lanthanide-amidinate bond has a covalent contribution (20%), confirmed by the presence of molecular orbitals metal and nitrogen character. These two results with those found in previous works; gave a correlation between the covalent percentage of the bond and the geometric distortion θ. The quantum descriptors of the conceptual DFT describe the compounds studied as weak electrophiles (μ = 0.9eV). From our theoretical analysis emerge a good candidate for heterogeneous catalysis.
SOLVENT AND TECHNIQUES EXTRACTION INFLUENCE ON PHYTOCHEMICAL PROFILE AND FREE RADICALS INHIBITION OF PHEONIX DACTYLIFERA L
(university of el oued/جامعة الوادي, 2018-09-01) Dia, O; Ouahrani, M. R; Laouini, S. E
The main of this investigation was to compare the extraction efficiency of different methods with various solvents from Phoenix dactylifera L extracts. The antioxidant activity and total phenolic compounds of extracts were evaluated using the various method. The highest extraction yield was founded in 70% methanol. Acetone extract exhibited a higher total antioxidant activity, ferric reducing antioxidant power and DPPH radical scavenging activity. The same extract also exhibited the highest phenolic, flavonoid, flavanol and condensed tannins contents. The results revealed that the ultrasonic is most suitable for the extraction of phenolic compounds and thus showing high levels of phenolic content and very high antioxidant capacities relative to the soxhlet and maceration technique. The results propose that Phoenix dactylifera L leaves extract can be considered as a rich source of natural bioactive compounds.
CHEMICAL COMPOSITION, ANTIBACTERIAL AND ANTIOXIDANT ACTIVITIES OF ESSENTIAL OIL EXTRACTED FROM SCHINUS MOLLE OF ALGERIA
(university of el oued/جامعة الوادي, 2018-09-01) Zerrouk, M; Segni, L; Bellemssoud, R; Gherraf, N
The work in hand was aimed mainly to highlight the antioxidant and anti-inflammatory efficacy of the essential oils and the hydrolate of the aromatic plant Schinus molle. The findings confirmed that both extracts of the studied species involve important biological actions on the tested pathogenic germs. The essential oil resulted from hydro-distillation has undergone GC/MS technique analysis. 28 components were detected representing 99.98% of the total oil. The foremost components are: 1, 4, 6, 7, 8, 9-hexahydro-2-methoxy-3-methyl-6-6-diispropylnaphthalene 16.03%, β- phelandrene 13.17%, α-phelandrene 12.83%, δ - cadiene 6.48%, camphene 6.04%, β-myrcene 5.20%, α-pinene 5.10%, Elemol 4.74%, α-cadinol 4.09% presenting 73.68% of the total oil. The good miscibility of the essential oil shows the opportunity to use it in cosmetics and pharmaceutical preparations
PREPARATION AND CHARACTERIZATION OF POLYPROPYLENE/ PLASTICIZED CORN STARCH BLENDS: EFFECT OF ORGANO-MAGHNITE CLAY AND COMPATIBILIZER ON THE MORPHOLOGICAL, MECHANICAL AND THERMAL PROPERTIES
(university of el oued/جامعة الوادي, 2018-09-01) Smail, D; Djellouli, B; Ourari, A; Doufnoune, R; Fleutot, S
A biobased nanocomposite was prepared from polypropylene (PP) and thermoplastic starch (TPS). Different percentages of polypropylene-grafted-maleic anhydride are added to the two phases to improve their compatibility. This system was reinforced with organoclay, modified by alkylammonium. The compatibilizer effect and TPS on morphology and properties of PP/organoclay nanocomposites obtained by melt compounding are studied. A good dispersion of filler into polymer matrix is demonstrated by X-ray diffraction. Exfoliated structure with improved compatibility between PP and TPS are obtained using MA-g-PP compatibilizer. Scanning electron microscopy proved strong interfacial adhesion between the components. 7% wt of MA-g-PP compatibilizer and 30% wt of TPS without compatibilizer induce an increase in modulus. Tensile strength and elongation decreased in all materials. TGA-DTA showed an increase in decomposition temperature of compatibilized materials.
ELECTROCHEMICAL AND THEORETICAL STUDIES INFLUENCING THE EFFECT OF HYDROXYL POSITION OF TETRAPHENOLIC SCHIFF BASES TOWARDS CORROSION INHIBITION OF MILD STEEL IN 1M HCl
(university of el oued/جامعة الوادي, 2018-09-01) Kheniche, A; Ourari, A; Dakhouche, A; Ghanem, A; Meguellati, K; Min, W
The effect of three tetrahydroxylated Schiff bases as N,N-bis(2,3-dihydroxybenzylidene)-4,4’-diphenylmethane, N,N-bis(2,4-dihydroxybenzyl- idene)-4,4’-diphenylmethane and N,N-bis(2,4-dihydroxybenzylidene)-4,4’-diphenylmethane were studied as inhibitors for mild steel in 1M HCl medium. The experiments were performed using potentiodynamic polarization. This inhibition proved an efficient increase according the position of second hydroxyl of salicylaldehyde suggesting that this inhibition is dependent on concentration and the compound nature. Among these position-isomers, the best inhibition efficiency was obtained with p-hydroxylated (94%) at 1mM. Tafel plots of these inhibitors are the mixedtype, their adsorption is spontaneous obeying to Langmuir’s isotherm. AFM/SEM-EDS characterized metal surface. DFT-calculations and molecular dynamics simulations are correlated to inhibition efficiency obtained.
CONSEQUENCES OF SLAUGHTER METHODS ON THE HYGIENIC QUALITY OF MEAT
(university of el oued/جامعة الوادي, 2018-09-01) Sitayeb, S; Tir Touil Meddah, A
The aim of the present study was to evaluate the impact of slaughter methods frequently used in Algeria on the stress of slaughter and its consequences on the quality of meat. Two groups of chickens of the same strain were chosen. The first group was slaughtered by the true Islamic technique and the second one without pronunciation of ritual "takbeer". The results of this study showed for the first time, the importance of "takbeer" in the reduction of stress of animal slaughtering. Significant differences of the parameters of stress, the quality of meat and meat offal were recorded between the two groups. A significant relationship between biological parameters was observed
COMPARATIVE STUDY OF PHYTOCHEMICAL COMPOSITION AND IN VITRO ANTIOXIDANT ACTIVITY FROM SWEET AND SOUR POMEGRANATE EXTRACT (PUNICA GRANATUM L)
(university of el oued/جامعة الوادي, 2018-09-01) Zidane, M; Ouahrani, M. R; Laouini, S. E
In this paper, to investigate the phenolic content and in vitro antioxidant of peel extracts from sour and sweet pomegranate (Punica Granatum L). The assessment of the antioxidant capacity using 2,2’-azinobis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), DPPH, and metal chelating radical scavenging capacity assays. Furthermore, the total phenolic content measured by Folin-ciocalteu method as well conducted. The sour peel ethanolic extract was found to contain a high content of total phenolic content, for the flavonoids sweet ethanolic extract flavonoids contained the high amount. All extracts exhibited a higher antioxidant activity and the inhibitory effect of radicals scavenging activity against ABTS, DPPH, and metal chelating. The results suggest that the sour peel ethanolic extract and sweet peel ethanolic extract can be considered as a good source of natural antioxidant.
EFFECTS OF THE RAMEAL WOOD TECHNIQUE ON SANDY SOIL GROWN IN POTATOES IN SOUF (ALGERIAN SAHARA)
(university of el oued/جامعة الوادي, 2018-09-01) Zaater, A; Kaci, F; Mehda, S; Belmessaoud, R; Ouastani, M
The main object of the present study is to investigate the effect of the fragmented ramial wood supply technique on the physicochemical characteristics of the sandy soil and the potato in the Souf region (Northen Algerian Sahara). This study was conducted at the experimental station of El Oued University during the spring season 2016. RWF intake the Lucena (Lucaena leucocephala) and olive (Olea europaea) is applied in mulch at different doses. The obtained results show that the RWF technique records highly significant effects for CE : 1,832 µs/cm, pH: 6,8 , K: 275,53 mg.kg-1, P: 90,38 mg.kg-1, Nt: 201,4 mg.kg-1, OM: 0,12% and C: 0,07%, and a significant effect for the ratio C/N: 3,46. Significant differentiations were also recorded in germination coefficient: 0.048 and germination percentage: 100%, as in leaf length: 18,5 cm and area: 24,32 cm2, which reflected on the fresh weight: 1,30 g and dry weight: 0,622g of the leaves and the relative water content: 74,93%. In conclusion, this study suggests that the RWF technique gives important and very satisfactory positive results.
PARASITIC ACTIVITY OF TWO PARASITOIDS PHANEROTOMA FLAVITESTACEA FISHER AND BRACON HEBETOR SAY (HYMENOPTERA: BRACONIDAE) ON THE DATE MOTH APOMYELOIS CERATONIAE ZELLER (LEPIDOPTERA: PYRALIDAE)
(university of el oued/جامعة الوادي, 2018-09-01) Zouioueche, F. Z; Biche, M; Mehaoua, M. S
The parasitic activity of the two parasitoids Bracon hebetor and Phanerotoma flavitestacea significantly affects the biological development of date moth Apomyelois ceratoniae. The results showed the females fecundity of both parasitoids is positively correlated with the number of host individuals (Phanerotoma: r = 0.46 and p <0.0001, Bracon: r = 0.7 and p = 0.001). Also, a significant difference is recorded between parasitized eggs and larvae and the number of emergences of adults of both auxiliaries with p = 0.001. In addition, the results revealed a very low rate of parasitism in P. flavitestacea compared to B. Hebetor with respectively 57.83% and 100%. Therefore, this study can enable us to valorize the use of these indigenous auxiliaries by combining the parasitic activity of egg-larval parasitoid with that of larvae, as a complementary action able to improve the success of biological control programs against the date moth.
LIGHT FIDELITY: THE GREEN WI-FI
(university of el oued/جامعة الوادي, 2018-09-01) Shoro, S; Rajper, S; Shaikh, A. W; Sial, R. H; Shahbaz, H. M
Light fidelity (Li-Fi) also known as Green Wi-Fi is a new and emerging technology, which is very popular among researchers and scholars. As internet is become a major need of people in this digital era, people are in search of Wi-Fi and hotspots. Li-Fi is the 5G technology which uses the Light Emitting Diodes for data communication through Wi-Fi. It is beneficial for wireless coverage inside a building however Li-Fi is best for high density data coverage within restricted region than the Wi-Fi. This technology provide the relive from radio interferences issues. In this paper we have discussed this new technology with reference to its various aspects like history, design, working and challenges but our main focus is to comparison of Li-Fi with existing technology. The undertaken study is useful for researchers, scholars and academicians.
AGENT ORIENTED PROGRAMMING LANGUAGES: A REVIEW
(university of el oued/جامعة الوادي, 2018-09-01) Shoro, S; Rajper, S; Shaikh, N. A; Jalbani and J, S; Rajper, ul-F.
Agent oriented Programming Languages are a set of instructions used to design an Agent Oriented Systems. In Agent Oriented systems, objects known as agents is an interface to accomplish particular objectives. Agents are referred as an encapsulated systems in computer which have an autonomous actions to accomplish the design goals. Agents can be self-sufficient elements, choosing their subsequent stage without the involvement of a user. The agents are particular in the capturing of structure in the natural way and the behavior of a complex system. Now a days Agents based systems are an interesting research area in computer science fields. The undertaken study aims to present the Concept, features and model of Agent Oriented Programing Languages but the main focuses of this study is on review of different programming languages used to design Agent Oriented Systems. This study will be helpful for the scholars, researchers and academicians
KINETIC AND ISOTHERM ADSORPTION STUDIES OF COBALT (II) ON MESOPOROUS ALUMINOSILICATE MATERIALS AND MESOPOROUS CARBON OF MCM-41 TYPE
(university of el oued/جامعة الوادي, 2018-09-01) Boumessaidia, S; Mohammedi, O; Cheknane, B; Bouchenafa-saib, N; Bachari, K
The main objective of this work is to study the use of silica and alumina materials and coals mesoporous for the adsorption of cobalt ions from a synthetic industrial effluent. Three types of mesoporous materials MCM-41, Al-MCM-41 (10), Al-MCM-41 (20) and one carbon CMK-3M were synthesized. The characterization is carried out by X-ray diffraction and nitrogen adsorption-desorption (BET). Efficiency of prepared adsorbents was tested toward the adsorption of cobalt (II) ions. Modeling of the adsorption kinetics of cobalt by the four materials in an aqueous medium under optimal operating conditions is pseudo first order. The adsorption isotherm on the four materials shows that the Langmuir model is favorable only with CMK-3M coal. On the other hand, the model of Freundlich is favorable with the four matrices studied with values of adjustment coefficient close to unity
PHYTOREMEDIATION PERFORMANCE OF URBAN WASTEWATER BY THE PAPYRUS ALTERNIOFOLIUS IN EL-OUED REGION (SOUTHEAST OF ALGERIA
(university of el oued/جامعة الوادي, 2018-09-01) Zaghdi, S; Laouini, S. E; Bebba, A. A
The aim of this study is to highlight the ability of plants to purify wastewater with a horizontal flow system under a dry and hot climate. The process consists of circular beds with a capacity of 30 L filled with superimposed layers of gravel (25/15) mm, sand, 45 cm and 10 cm deep respectively. The first bed was planted with freshly collected stems of the plant Papyrus alterniofolius (40 stems/m2) and an unplanted bed was taken as a witness. The results revealed important removal fractions of the main pollutants namely: chemical oxygen demand COD (70,59%), biochemical oxygen demand BOD5( 97,25%) total suspended solids TSS (97.16%), nitrite NO2– ( 65.55%), nitrate NO3-(86.16 %), E. coli (99.41%), total coliforms (99.97 %) and total streptococcus (99.90 %). The considerable decrease of pollutants content and harmful organisms enables the reuse of the treated water in agriculture and industry.
CORROSION BEHAVIOR OF API N80 STEEL MATERIAL IN ALBIEN WATER
(2018-09-01) Chelgham, F; Bouzid, N; Saidi, M; Boumaza, A; Taabouche, A.; Boudjema, S
At Hassi-Messaoud, the recuperation of oil is assisted by injection of water extracted from Albian aquifer. To increase the injection capacity of the water, API N80 concentric has been installed along production wells, the difference between the temperature of the water wells and that of the water injected into the concentric generates a temperature gradient ΔT varying in depth and up to 16°C. The present study endeavors to examine, first the effect of tempering temperature on the corrosion behavior of API N80 pipe in Albian water at different temperature gradients and then to determine the nature of corrosion deposit. Polarizations results for samples tested at different ∆T shows a general decline in corrosion rate values with increase in tempering temperature. FTIR and XRD analysis revealed that corrosion scale is heterogeneous; the formation of various compounds depends strongly on temperature.
SYNTHESIS, CHARACTERIZATION AND SWELLING STUDY OF PGMA HYDROGEL BASED ON POLY (GLYCIDYL METHACRYLATE)
(university of el oued/جامعة الوادي, 2018-09-01) Souli, L; Lahrech, M.B; Djemoui, A
The PGMA hydrogel studied in this work was prepared by physical cross-linking of poly (glycidyl methacrylate) (PGMA) at 50-55°C without cross-linking agent. The PGMA was synthesized by ring opening polymerization of glycidyl methacrylate (GMA) in presence of Maghnite-H+ as an catalyst at room temperature. The PGMA hydrogel synthesized was characterized by FT-IR, by X-ray diffraction (XRD), by scanning electron microscope (SEB) and by swelling measurements. The results obtained by X-ray diffraction, showed that the PGMA hydrogel formed by two structures, a crystalline structure and an amorphous structure. Scanning electron microscopy (SEM) analysis indicated that a porous structure of PGMA hydrogel. The equilibriums water content (EWC) obtained were 74.81% at 20°C, 79.38% at 40°C and 85.81% at 60°C.
SIMPLE APPROACH TO GROUNDWATER STUDY FOR DOMESTIC USES IN RURAL AREA
(university of el oued/جامعة الوادي, 2018-09-01) Adagunodo, T. A
Nigeria is one of the countries facing challenges associated with water supply. In rural areas, majority depend solely on hand-dug wells for their consumption which are prone to contamination. This study is aimed to determine the potability of hand-dug wells in Eyenkorin using the geophysical and physicochemical techniques. Ten Vertical Electrical Sounding (VES) data were acquired beside ten dug wells that were used for the physicochemical analysis, with half-current electrode spacing (AB/2) which varied from 46 to 75 m. The VES results revealed that water from the wells were tapped at shallow aquifers, while the hydro-physicochemical parameters revealed higher constituents of TDS, Fe2+,, K+ and NO3- in the analyzed samples. It is concluded that the contamination in the study area is as a result of anthropogenic and geogenic contributions. Water treatment is recommended in the study area prior to domestic usage.
INVESTIGATION OF THE GROWTH PROPERTIES OF PIKE (Esox lucius L., 1758) IN KAPULUKAYA DAM LAKE
(university of el oued/جامعة الوادي, 2018-09-01) Benzer, S; Gül, A
This study is related to the investigation of the growth properties of pike (Esox lucius L., 1758) in Kapulukaya Dam Lake. There were 328 fish caught between November 2002 – October 2003 ranging between I - VII years of age. Von Bertalanffy growth equations for the females and males were found as Lt = 1678.98 (1 – e – 0.045 ( t + 4.25 ) ), and Lt = 803.18 (1 – e – 0.142 ( t + 3.09 ) ). Length-weight relations for the females and males were W = 0.00004532 × L 2.7105 and W = 0.00023207 × L 2.4372. The condition factor for the general population was found as 0.806
SIMPLE APPROACH TO GROUNDWATER STUDY FOR DOMESTIC USES IN RURAL AREA
(university of el oued/جامعة الوادي, 2018-09-01) Adagunodo, T. A
Nigeria is one of the countries facing challenges associated with water supply. In rural areas, majority depend solely on hand-dug wells for their consumption which are prone to contamination. This study is aimed to determine the potability of hand-dug wells in Eyenkorin using the geophysical and physicochemical techniques. Ten Vertical Electrical Sounding (VES) data were acquired beside ten dug wells that were used for the physicochemical analysis, with half-current electrode spacing (AB/2) which varied from 46 to 75 m. The VES results revealed that water from the wells were tapped at shallow aquifers, while the hydro-physicochemical parameters revealed higher constituents of TDS, Fe2+,, K+ and NO3- in the analyzed samples. It is concluded that the contamination in the study area is as a result of anthropogenic and geogenic contributions. Water treatment is recommended in the study area prior to domestic usage

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