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Ethnobotanical study of Belezma National Park (BNP) plants in Batna: East of Algeria

, Europeméridionale)”, ISBN: 978–9961-48-714-3, 2011 . [5]. Scherrer, A.M.; Motti, R.; Weckerle, C.S., “Traditional plant use in the areas of monte vesole and ascea, cilento national park (Campania, southern Italy)”, Journal of Ethnopharmacology , 2005 , 97 (1), 129–143. [6]. B.N.E.F, Contribution l’étude de la fructification et de la régénération du Cèdre de l’Atlas. B.N.E.F., 1986 . [7]. Sahli, M., « Conservation et développement dans le parc national du Belezma (wilaya de Batna, Algérie) », Revue Sciences Humaines , 2004 , 22 , 81-91. [8]. Lacoste

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An Efficient Fault-Tolerant Scheduling Approach with Energy Minimization for Hard Real-Time Embedded Systems

Abstract

In this paper, we focus on two major problems in hard real-time embedded systems fault tolerance and energy minimization. Fault tolerance is achieved via both checkpointing technique and active replication strategy to tolerate multiple transient faults, whereas energy minimization is achieved by adapting Dynamic Voltage Frequency Scaling (DVFS) technique. First, we introduce an original fault-tolerance approach for hard real-time systems on multiprocessor platforms. Based on this approach, we then propose DVFS_FTS algorithm for energy-efficient fault-tolerant scheduling of precedence-constrained applications. DVFS_FTS is based on a list scheduling heuristics, it satisfies real-time constraints and minimizes energy consumption even in the presence of faults by exploring the multiprocessor architecture. Simulation results reveal that the proposed algorithm can save a significant amount of energy while preserving the required fault-tolerance of the system and outperforms other related approaches in energy savings.

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Slurry shield tunneling in soft ground. Comparison between field data and 3D numerical simulation

Abstract

In urban areas, the control of ground surface settlement is an important issue during shield tunnel-boring machine (TBM) tunneling. These ground movements are affected by many machine control parameters. In this article, a finite difference (FD) model is developed using Itasca FLAC-3D to numerically simulate the whole process of shield TBM tunneling. The model simulates important components of the mechanized excavation process including slurry pressure on the excavation face, shield conicity, installation of segmental lining, grout injection in the annular void, and grout consolidation. The analysis results from the proposed method are compared and discussed in terms of ground movements (both vertical and horizontal) with field measurements data. The results reveal that the proposed 3D simulation is sufficient and can reasonably reproduce all the operations achieved by the TBM. In fact, the results show that the TBM parameters can be controlled to have acceptable levels of surface settlement. In particular, it seems that moderate face pressure can reduce ground movement significantly and, most importantly, can prevent the occurrence of face-expected instability when the shield crosses very weak soil layers. The shield conicity has also an important effect on ground surface settlement, which can be partly compensated by the grout pressure during tail grouting. Finally, the injection pressure at the rear of the shield significantly reduces the vertical displacements at the crown of the tunnel and, therefore, reduces the settlement at the ground surface.

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Parameters Influencing the Response of a Base-Isolated Building

Abstract

In order to illustrate the effect of damping on the response of a base-isolated building, a large investigation was undertaken. It consists of a parametric study, which takes into account the progressive variation of the damping ratio (10% to 30%) under different seismic excitations. Using a time history analysis of displacements and accelerations at various levels of the building, the results show that the efficiency of the isolator increases with the assumed damping ratio, provided that the latter is less than or equal to 20%. Beyond this value, the isolator becomes less useful.

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Sediment transport modelling in wadi Chemora during flood flow events

erosion in the river basin Reboa and its impact on the dam timgad – multi-criteria approach]. FIG Working Week 18–22 May 2011 in Marrakech, Morocco. G uidoum A. 2004. Mémoire de Magister [Memory of Magister]. Hydrological study of the watershed of Wadi Chemora. Batna. Universite De Batna Algerie pp. 259. H addad A., R emini B., R emaoun M. 2014. Numerical modelling of solid transport caused by an extreme flood: Case of the Hamiz dam failure (Algeria). Journal of King Saud University – Engineering Sciences. August 2014. DOI: 10.1016/j.jksues.2014

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Water quality index assessment of Koudiat Medouar Reservoir, northeast Algeria using weighted arithmetic index method

water quality in rural Bangladesh: a crosssectional study. Journal of Health, Population and Nutrition. Vol. 35(4) p. 1–12. DOI 10.1186/s41043-016-0041-5. T ebutt T.H.Y. 1983. Principles of quality control. London. Pergamon Press. ISBN 9781483285979 pp. 235. T iri A. 2010. Pollution urbaine et industrielle des eaux de surface du barrage de Koudiat Medouar Est Algerien [Urban and industrial pollution of the surface waters of the Koudiat Medouar East Algerian dam]. Phd. Thesis. University of Batna, Algeria. T ripaty J.K., S ahu K.C. 2005. Seasonal

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The assessment of the physicochemical quality of water intended for irrigation of Oued Méskiana (Oum El Bouaghi) Algeria

Coordinating the livelihood and environmental realities , 2004 , p 10. [4]. Tamrabet, L., « Contribution à l’étude de la valorisation des eaux usées en maraichage, Thèse doctorat, Université de Batna, Algérie », 2011 . www.ingdz.net/links/http://theses.univ-batna.dz/index.php . [5]. Bouchaala, L.; Charchar, N.; Gherib, A., « Ressources hydriques: traitement et réutilisation des eaux usées en Algérie », Algerian journal of arid environment , 2017 , 7 (1) 84-95. [6]. Chongwang, J., « Les eaux usées, un atout pour l’irrigation des cultures, rapprocher la

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Clays valorization as corrosion inhibitors for E400 reinforcing steel

. Feng, K.S. Siow, W.K. Teo, A.K. Hsieh, Corrosion Science 41, 829 (1999). [33] N. Srisuwan, N. Ochoa, N. Pebere, B. Tribollet, Corrosion Science 50, 1245 (2008). [34] J.L. Crolet, in Corrosion localisée, Ed. F. Dabosi et al., Les Editions de Physique, Les Ulis, (1994), p. 407. [35] R. Touir, N. Dkhireche, M. Ebn Touhami, M. Sfaira, O. Senhaji, J.J. Robind, B. Boutevin and M. Cherkaoui, Materials Chemistry and Physics 122, 1 (2010). [36] A. Belloufi, Mémoire de Magister, Université de Batna, 2010

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High Performances of Five–Phase Induction Machine Feeding by A [3 × 5] Matrix Converter

Drives, Nottingham, UK, Sep 1996, pp. 23-25. [13] HUANGSHENGXU,-TOLIYAT, HA.-PETERSEN, L. J. : Five-Phase Induction Motor Drives with DSP-Based Control System, IEEE Transactions on Power Electronics 17 No. 4 (July 2002), 524-533. [14] REZAOUI, M. M.-NEZLI, L.-MAHMOUDI, M. O. : Study of Output Voltages of a Matrix Converter Feeding a Five AC-Induction Motor using the Strategy PWM Modulation to Five Intervals, Sixth International Conference on Electrical Engineering CEE 2010, Batna, Algeria, Oct 2010. [15] REZAOUI, M. M

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Adaptive Nonlinear Control of A Synchronous Generator

tension a trois niveaux”Mémoire de Magister, Université de Batna, juin 2006. [10] H Tegjini M Moudjahed,Y Meslem et M Tadjine” Commande non lineaire adaptative par backstepping et observateur d’une machine synchrone à aimant permanent alimentée par un onduleur à tris niveaux” [11] 4th International conférence on computer integrated manufacturing CIP’2007 [12] F Parendin,A Mohamadi,H Sariri” Power System Stabilizer Design based on Model Reference Adaptive System” Journal or American Science 2012,8[7]. [13] W Hachelfi,Y Menasria, D Rahem and A

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