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Item أعمال المؤتمر العلمي الدولي الافتراضي الثاني حول مساهمة العلوم البيوطبية في تطويرالأداء الرياضي النخبوي أيام 29-30 ماي2021(جامعة أم البواقي, 2021) مالك, رضاتهدف الدراسة إلى التعرف على أثر كل من التدريب المتقطع والتدريب الفتر ي على السرعة الهوائية القصوى وقدرة الاسترجاع لدى لاعب ي كر ة القدم أكابر.ولهذا الغ رض استخدمنا المنهج التجريبي، على عينة متكونة من 40 لاعبا، مقسمة إلى عينتي ن 20 لاعبا من كل فريق. وقد تم اختياره ا بشكل قصدي من نادي أمل شلغوم العبد ونادي 2020 . لجم ع / شباب ميلة للموسم الرياض ي 2019 Polar و جهاز GPS البيانات استخدمنا جهاز والاختبارات البدنية بعد جمع النتائج ومعالجته ا إحصائيا تم التوصل إلى أ ن التدريب المتقطع أكثر فعالية من التدريب الفتري في تطوير السرعة الهوائية القصوى قدرة الاسترجاع لدى لاعب ي كر ة القدم أكابر. The study aims to identify the effect of both intermittent training and interval training on the maximum air speed and recovery ability of senior football players. For this purpose, we used the experimental method, on a sample of 40 players, divided into two samples, 20 players from each team. She was intentionally selected from Amal Shalghoum Al-Abed Club and Mila Youth Club for the 2019/2020 sports season. To collect the data, we used GPS, Polar and physical tests. After collecting the results and processing them statistically, it was concluded that intermittent training is more effective than interval training in developing the maximum aerobic speed and recovery capacity of senior football playerItem Electrochemical synthesis of p-Cu2O thin films on ITO-coated glass substrates for photovoltaic solar cells(University of Oum El Bouaghi, 2021) Kihal, Rafiaa; Rahal, Hassiba; Rahal, Samia; Affoune, Abed MohamedCuprous oxide (Cu2O) thin films have been prepared on ITO-coated glass substrates by electrodeposition technique from an aqueous solution containing copper acetate and sodium thiosulfate. Electrochemical kinetics of Cu2O films were investigated by cyclic voltammetry. The obtained films were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), UV/Vis spectroscopy and electrical measurements. The X-ray diffraction results indicated that the synthesized Cu2O thin films had a good crystalline of deposited Cu2O thin films with a pure cubic structure. Morphological study showed a better compactness structure composed of pyramid shape. Optical band gap was found to be 2.103 eV. Electrical properties of Cu2O films showed a p-type semiconductor with low electrical resistivity of 100 Ω cm, carrier concentration of 3.62×1015 cm-3and mobility of 17.24 cm2 V-1s-1.Item Thin solid films Structural, electrical and optical properties of Fe-doped CuO deposited by spray pyrolysis technique(University of Oum El Bouaghi, 2021) Daira, Radouan; Zerouali, Madiha; Boudjema, BouzidOur work consists in depositing the copper oxide Fe doped CuO films by spray obtained from the solution of copper chloride CuCl2 and FeCl2 with a percentage of 2, 4; 6 and 8%, on glass substrates at a temperature of 3500c. The thin films obtained are characterized by X-ray diffraction, visible UV spectroscopy and the four-point technique. With X-ray diffraction, high peak intensity is obtained for the preferential orientations of (002) and (111), this intensity increases as the doping rate increases and gives us a more crystalline structure for a doping rate of 8%, also a grain size were estimated. The transmission of our films varies between 55% and 75% with a high absorption in the visible domain, the resistivity of our films increase with the increase of doping rate and the gap energy varies between 4.00 and 1.47 eV. .Item Influence of temperature and pressure on the atoms ejected path during thin films deposition(University of Oum El Bouaghi, 2021) Refas, S.C.; Bouazza, A.; Belhadji, Y.; Othmani, R.The simulation with Monte-Carlo codes represented the efficiency tools which helps knowing the phenomena that occur inside the vacuum hamber for sputtering process. In this work, the impact of temperature and pressure parameters on the surface structure of thin films are studied in 3D form with the magnetron sputtering technique. Inside a vacuum chamber a 105 particles of Argon (Ar) gas are injected, the target contained the semiconductor silicon (Si), and the substrate is placed with a variable distance from the target .The results obtained in this work show that a high temperature, pressure and a long distance between the target and substrate can negatively affects the path of the atoms ejected away from the target which will cause a decrease in the number of atom arriving on the substrate.Item Contribution to induction motor control for electric traction based on intelligent techniques(University of Oum El Bouaghi, 2021) Zairi, Raid; Salmi, SalahThe negative impact of CO2 emissions from diesel is forcing the electrification of rail systems to reduce gas emissions. In the case of electric traction the induction motor is considered in many applications as the best solution. This paper presents an intelligent strategy to improve the control performance of the asynchronous motor in a railway traction chain. The technique used to control this motor is IFOC because of its good suitability on the one hand its robustness, of which speed, torque and flux play an essential role in terms of the dynamic parameters of the system. The maximum torque and efficiency are obtained by controlling the speed by the conventional PI controller and that of fuzzy logic and neural network. The simulation results obtained by Matlab/Simulink show that the artificial intelligence ensures the best performance in terms of robustness, stability and fidelity during the sudden variation of the speed and torque.Item Novel approach to estimate remaining useful life in condition based maintenance(University of Oum El Bouaghi, 2021) Abderrezek, Samira; Bourouis, AbdelhabibDeep learning is an efficient tool for Remaining Useful Life (RUL) estimation, which is crucial for intelligent prognosis and Condition-Based Maintenance (CBM) strategies. To achieve this task, Bidirectional long short-term memories have been preferred for their ability to identify patterns of temporal sequences independently, and Convolutional Autoencoder is performed in extracting features. To benefit from the advantages of these two deep learning models, this paper proposes their hybridization. We investigate the best configuration by varying the values of the hyperparameters and evaluating their impact on the new model’s performance. Finally, it is compared with other similar models in order to study the effectiveness of the approach.Item Enhanced approach for on-road obstacles detection using level-set-YOLOv3 combination(University of Oum El Bouaghi, 2021) Korti, Djazila Souhila; Foued, Derraz; Slimane, ZohraAutomatic detection and classification of on-road obstacles is an integral part of Intelligent Transport Systems (ITS). It increases road safety by providing valuable information about the environment where the vehicle navigates using onboard sensors, and can intervene in risky situations. However, it is a difficult task to achieve due to multiple variability conditions presenting in the real urban scenes. These latter can perform partial occlusion, multi-view angles, multi-scale objects, different lighting conditions, etc. In order to solve these problems, we describes in this paper a system for automatic detection and classification of on-road obstacles. The system is achieved by combining the Level-Set segmentation technique and the YOLOv3 algorithm that uses Darknet-53. The YOLOv3 used in our work was pre-trained with COCO dataset, on 80 categories of common objects. We started by fine tuning the model, to detect three types of on-road obstacles: Car, Person, and Bycicle, with KITTI dataset, which contains scenes from public roads. Then we used the segmented RGB images from KITTI, for training and testing the performance of the model. The proposed model with combination of Level-Set and YOLOv3 is compared to a simple YOLOv3 model without any preprocessing. The results demonstrate the effectiveness of the model with combination in detecting small size, overlapping objects with high precision of about 87%.Item Analysis of asymmetrical composite rightLeft handed transmission line for broad band microwave devices(University of Oum El Bouaghi, 2021) Belattar, Mounir; Soumali, ChaabaneMetamaterials are artificial structures that can be designed to exhibit specific electromagnetic properties not commonly observe in nature . In this paper we use a new iterative method to evaluate the different parameter of asymmetrical composite right left handed transmission lines (CRLH TL). In order to define the scattering parameters of a given number of N CRLH TL unit cells mounted in cascade, an iterative method is proposed. Starting from the first unit ABCD parameter one can extract the whole cascade ABCD parameters, further the scattering parameter S of the cascade structure are easily extracted. Finally the CRLH-TL structure is simulated using the commercial software HFSS. Good agreement between our method and simulation results is observed.Item Placement optimization in sensors network using a linear discernment analyses-based clustering for smart greenhouse(University of Oum El Bouaghi, 2021) Bentoumi, Adel; Belhani, AhmedThe location of the sensors is generally determined based on the experience of greenhouse producers and designers. To monitor accurately the interior environment of a greenhouse, the installation locations of sensors must be carefully chosen. In this study, we propose a linear discriminant analysis (LDA) which chooses an optimal configuration of sensors for a particular application from a whole set of Networks. The proposed method finds the direction w via the LDA such that when data are projected onto this direction, The scheme aims to split the large network into irregular subareas, regarded as blocks. In each of such blocks, the nodes measurements are as uniformly correlated as possible in placement from each cluster.Item Tin disulphide properties optimisation for solar cells applications(University of Oum El Bouaghi, 2021) Kamli, Kenza; Hadef, ZakariaTin disulphide semiconductors are used in various applications and specifically in solar cells. They are relatively inexpensive compared to other thin films used in the photovoltaic technology. Tin disulphide thin film has been promisingly proposed for this field application as buffer or window layer. In this work, we study the effect of deposition time on the structural, morphological and optical properties of tin disulphide thin films deposited on glass substrates using spray pyrolysis technique. The phase of SnS2 are identified using X-Ray diffraction. A single phase without impurities is observed for the elaborated samples. The optical analyses show that the filmprepared at 65 min present the highest transmittance in the visible region. The obtained results confirm that SnS2 thin films can be good candidates for solar cells devices. These results are of great importance in the prediction of the good application of SnS2 thin films in solar cells.Item Contribution on modeling and control of a wind power system based on fuzzy(University of Oum El Bouaghi, 2021) Baladji, Djalal; Lamamra, KheireddineIn this work, we study the modeling and control of a wind energy conversion chain based on a Dual Power Asynchronous Machine. First, the mathematical model of the whole system under study is developed in d-q Park coordinates. Then, the proposed control strategy is designed based on a fuzzy logic control technique that gives good results. Finally, the results of the different simulations of the whole conversion chain, performed under MATLAB/Simulink environment, are presented.Item Microwave Sensor for Liquid Mixture Identification based on Metamaterial based on Double Concentric Elliptical Complementary Split Ring Resonator(University of Oum El Bouaghi, 2021) Halfaya, Ahmed; Lashab, Mohamed; Salmi, Salah; Soufi YoucefIn this paper a Microstrip line coupled double concentric elliptical complementary split-ring resonator etched in the ground plane is used to create a sensor. The operating frequency of presented metamaterial sensor is from 1Ghz to 2 Ghz .The sensor is designed and simulated with the commercial software CST Studio Suite . The liquid sample's complicated dielectric permittivity affects the resonance frequency and bandwidth. We can build an empirical link between sensor resonance and sample permittivity using data collected from simulations. the resonance frequency is shifted from 1.50 down to1.49 Ghz. On the basis of variations in the resonance frequency and peak attenuation of the transmission response [ l S21 l max] on resonance the sensor estimates the complex permittivity of a liquid. The proposed sensor is easily to fabricated and reusable resonator.Item Influence of Synthesis Conditions and Al doping, on structural and optical properties of ZnOSnO2 thin film(University of Oum El Bouaghi, 2021) Benkara, S.; Seghairi, N.; Bouabida, S.; Ghamri, H.Zn/Sn nanocomposite deposited on glace substrate by sol gel dip-coating technic, using Zinc acetate and tin chloride as precursors and aluminium chloride as dopping source, absolute ethanol and monoethanolamine (MEA) were used as the solvent and stabilizer, respectively. The quantity of tin in the solution was 0; 25; and 40 at.% Sn, and of aluminium was 0; 0,5; 2; and 4 at.% Al. The films are deposited at two dipping speeds: 100 mm/min and 50 mm/min, and used two dipping cycles: 10 and 5. The structure, optical properties and morphology of nanofilms and the influence of experimental parameters as withdrawal speed and dipping cycles on deposition of ZnO films were studied using X-Ray Diffraction (XRD), UV–vis spectroscopy and optical microscope. The crystalline phase determination from XRD confirmed that the films are composed of hexagonal wurtzite ZnO and tetragonal rutile SnO2 without compound impurities. The doping and dipping speed and cycles effect on optical bandgap is estimated by transmittance spectra.Item Enhancing multimodal biometric frameworks using fuzzy fusion at matching score level(University of Oum El Bouaghi, 2021) Fares, Abdelhakim; Megri, Abderrahim Faycal; Meraoumia, AbdallahMultimodal biometric systems aim to achieve the best performance in persons recognition, by combining more than one biometric modality so that the combination is done using the fusion principle. In fact, although different levels of fusion are available, score-level fusion is the most commonly used. Indeed, in this process and before combining, the heterogeneous scores provided by the different biometric subsystems must be normalized. In this paper and in order to cancel the scores normalization step, a fuzzy fusion strategy has been proposed. Our experimental results, using a PolyU finger-knuckle-print database, show that the proposed fusion scheme improves the results compared to the Z-score normalization method followed by the min and max classical combining arithmetic rules.Item Condition classification for bearing fault based on machine learning using GUI(University of Oum El Bouaghi, 2021) Souaidia, Chouaib; Thelaidjia, Tawfik; Chenikher, SalahIn this paper, a new method based on a graphical user interface is developed for bearing fault diagnosis. The suggested method consists of using statistical parameters for feature extraction. Then the classification task is guaranteed using two classifiers namely: neural networks and random forest. The suggested approach is tested based on the bearing dataset provided by the Case Western Reserve University, Bearing Data Center. To facilitate the exploitation of the proposed approach a GUI has been developed. The obtained results show the effectiveness and the simplicity of the proposed approach for bearing fault diagnosis.Item Simulation for the improvement of the performance of the digital transmission chain between Oum El Bouaghi and Ain Mlila(University of Oum El Bouaghi, 2021) Boughrara, Bouchra; Hamouda, Amar; Goumidane, Faycal; Kebaili, Amir; Messaoudi, RoumaissaThe aim of this work is to study and precisely adjust the values of the parameters of the components used at the level of the transmitter, receiver and physical support modules of the digital transmission (optical fiber) using the OPTISYSTEM 7 simulator, in order to improve the quality and the binary error rate of the transmitted signal and subsequently the development of the performance of the transmission chain at a distance of 70 Km.Item A new design of high-sensitive photonic crystal biosensor based on ring-shape holes for detecting glucose concentration(University of Oum El Bouaghi, 2021) Daas, Assia; Mouetsi, Souheil; Hocini, Abderraouf; Hocini, Abdesselam; Lariouri, FatehIn this work an optical sensors has been designed and studied with different parameters to select the best result of Q factor and sensitivity; for that, we choose a 2D photonic crystal (PhC). The refractive index (RI) sensor is formed by a pointdefect resonant cavity in the quasi-sandwiched waveguide with a hexagonal lattice of air holes. The properties of the sensor are simulated using a couple of two methods finite-difference timedomain method (FDTD) and the plane wave method (PWE). The calculation results show that a change in ambient RI is apparent; the sensitivity of the sensor is achieved. The objective of our research was primarily modeling and optimization geometry of a first coupling path between a waveguide and a ring resonator with base of photonic crystals in order to improve the coupling properties in this structure. It is in this context that we have exploited all the parameters already developed for improve the biodetection properties in a photonic crystal-based structure. The role of our design is to sens small RI changes for detecting glucose concentration using resonant microcavity (RMC).Item Stability enhancement of a single machine infinite bus system using H-infinity control(University of Oum El Bouaghi, 2021) Khelloufi, Abdeslem; Sari, Bilal; Chouaba, Seif EddineThis work presents a robust H∞ output feedback control design of a Power System Stabilizer (PSS). This PSS is used to damp low-frequency oscillations in power systems over a wide range of operating conditions. The H∞ control is employed in the Single-Machine connected to an Infinite Bus (SMIB) system using two weighting functions. The proposed stabilizer offers robust stability against different external disturbances and parameter uncertainties. A comparative simulation study shows a significantly enhancement and good performance of the proposed design compared to an IEEE conventional power system stabilizer.Item A Microstript coupler with improving the characteristic transmission(University of Oum El Bouaghi, 2021) EL-Bouslenti, R.; Salah-Belkhodja, F.; Sayah, A. K.In this paper, a new miniaturized microstrip coupler at the center frequency of 3.26 KHz is proposed. Meander line allowed for reducing the size of the component. The coupler demonstrates a coupling level of 2.29 dB, a reflection level of 25.39 dB and an isolation level as 42.41 dB. The meandered coupler have the compact sizes of 23×34.6 mm2, and a characteristic impedance Z0 of 50.60 . in order to validate our model, the compact coupler is designed and fabricated using microstrip technology on FR4 substrat. Good agreement is achieved between the simulated and measured resultsItem Structure of the proposed RI biosensor (sensor with two functions)(University of Oum El Bouaghi, 2021) Hocini, Abderraouf; Daas, Assia; Hocini, AbdesselamPhotonic sensors, in light of proposed structures comprised of rhombus– molded gaps matched with two waveguides, have been developed as another enthusiasm for specialists in science and technology. In this paper, it has been demonstrated that by utilizing the rhombus–formed openings examination, they got outcomes which are brilliant inside the depression locale. Consequently, the quality factor (Q) and the affectability (S) can be essentially improved for the proposed structure. This investigation are performed by reproduction utilizing limited contrast time area (FDTD). Different affectability are acquired as 565.38 nm/RIU and quality factor as high as 2.61×105have been accomplished, deducing in a location breaking points 1.03×10-6. This blend angle gives the proposed structure an extra exhibition as a component to play out a name free biosensing for the biomedical visualization.