10 10 165 Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource DEKHANDJI, Fatma Zohra BENTARZI, Hamid Date A point or period of time associated with an event in the lifecycle of the resource 2019-12-15 Description An account of the resource Voltage unbalance is one of the power quality problems causing a lot of ill effects on induction motors. These are namely: Overheating, line-current unbalance, derating, torque pulsation, and inefficiency. The objective of the present work is to assess and quantify the effects of voltage unbalance on induction motors using both theory and experimentation. The analytical study is performed using the complex voltage unbalance factor model of this problem. The work deals specifically with the influence of the variations in the complex angle of the voltage unbalance factor on the stator and rotor currents, stator and rotor copper losses and total losses. The experimental investigation is carried out using an apparatus that measures currents, torque and power losses. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/82 10.51485/ajss.v4i2.82 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/82/66 Rights Information about rights held in and over the resource Copyright (c) 2019 Fatma Zohra DEKHANDJI, Hamid BENTARZI https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 4 No. 2 (2019); 51-60 2676-1548 2543-3792 10.51485/ajss.v4i2 Subject The topic of the resource Power quality Voltage unbalance Complex angle Induction motor Power losses Title A name given to the resource Theoretical and Experimental Investigation of the Supply Voltage Unbalance Effects on Squirrel Cage Induction Motors Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Hentout, Abdelfetah Maoudj, Abderraouf Yahiaoui, Djelloul Aouache, Mustapha Date A point or period of time associated with an event in the lifecycle of the resource 2019-12-15 Description An account of the resource This paper deals with the problem of optimal collision-free path planning for mobile robots evolving inside indoor cluttered environments. Addressing this challenge, a hybrid approach is proposed combining Rapidly-exploring Random Trees (RRT), A-Star (A*) and Back-Tracking (BT) algorithms (RRT-A*-BT). Thus, a vision system is used for a nearly-exact modeling of the environment through image processing. Moreover, each iteration of the basic RRT approach is guided by A* algorithm while trying to take the shortest path linking the robot current position to target . In case of a blockage, BT algorithm is used to get out the robot from this situation. Finally, Piecewise Cubic Hermite Interpolating Polynomial (PCHIP) is used to smooth the generated optimal path. RRT-A*-BT approach is validated through different scenarios; obtained results are compared with previous works on same environments with same conditions. The results prove that RRT-A*-BT is better and faster than other algorithms of the literature, such as Genetic Algorithms and Conventional RRT, in terms of (i) computation time,(ii) path length and (iii) transfer time.. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/81 10.51485/ajss.v4i2.81 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/81/65 Rights Information about rights held in and over the resource Copyright (c) 2019 Abdelfetah Hentout, Abderraouf Maoudj, Djelloul Yahiaoui, Mustapha Aouache https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 4 No. 2 (2019); 39-50 2676-1548 2543-3792 10.51485/ajss.v4i2 Subject The topic of the resource Optimal path planning Collision-free path Indoor mobile robotics Rapidly-exploring Random Trees A-Star Back-Tracking Title A name given to the resource RRT-A*-BT approach for optimal collision-free path planning for mobile robots Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource RECIOUI, Abdelmadjid Traikia, Oussama GRAINAT, Youcef Date A point or period of time associated with an event in the lifecycle of the resource 2019-06-15 Description An account of the resource In this work, Grey Wolf Optimization (GWO) is applied to the optimization of elliptical and concentric elliptical antenna arrays. The objective is to minimize the Sidelobe level and improve the directivity. GWO is a nature-inspired meta-heuristic algorithm inspired by the social hierarchy and hunting behavior of grey wolves. The obtained optimal values result in a good reduction of the sidelobe level for the elliptical and concentric elliptical antenna arrays with an enhancement in the directivity. This makes the designed arrays of practical use in the communication systems. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/80 10.51485/ajss.v4i1.80 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/80/64 Rights Information about rights held in and over the resource Copyright (c) 2019 Abdelmadjid RECIOUI, Oussama Traikia, Youcef GRAINAT https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 4 No. 1 (2019); 32-38 2676-1548 2543-3792 10.51485/ajss.v4i1 Subject The topic of the resource Elliptic antenna arrays Grey wolf optimization optimization directivity sidelobe level Title A name given to the resource Elliptic and Concentric-Elliptic Antenna Array Design using Grey Wolf Optimization Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource DEKHANDJI, Fatma Zohra AZZOUGUI, Y. RECIOUI, Abdelmadjid Date A point or period of time associated with an event in the lifecycle of the resource 2019-06-15 Description An account of the resource Wide area monitoring systems require the integration of new technologies that provide real time synchronized phase angle measurements. The Phasor measurement units (PMUs) are the most advanced devices to achieve this task so far. The objective of this work is to find the minimum number and optimal placement of PMUs in some standardized IEEE systems. The relatively new drone squadron optimization (DSO) technique is used to solve this problem. Next, fault location is studied based on the measurements collected from these PMUs. The simulations are carried out using MATLAB SIMULINK. The results show that it is possible to achieve the observability of the overall system; however, more PMUs are needed to locate the faults. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/79 10.51485/ajss.v4i1.79 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/79/63 Rights Information about rights held in and over the resource Copyright (c) 2019 Fatma Zohra DEKHANDJI, Y. AZZOUGUI, Abdelmadjid RECIOUI https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 4 No. 1 (2019); 25-31 2676-1548 2543-3792 10.51485/ajss.v4i1 Subject The topic of the resource PMU WAMS PMU placement Faults Drone Squadron Optimization Title A name given to the resource PMU Optimal Placement for Fault Detection in Wide Area Monitoring Systems based on the Drone Squadron Optimization Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource ZITOUNI, Abdelkader BENTARZI, Hamid Date A point or period of time associated with an event in the lifecycle of the resource 2019-06-15 Description An account of the resource The placement of synchro-phasor measurement units in electric transmission systems has also gained much attention for enhancing the control as well as the protection scheme. In this research work, a binary teaching learning based optimization (BTLBO) algorithm for the optimal placement of synchro-phasor measurement units (SPMUs) is proposed. The optimal PMU placement problem is formulated to minimize the number of SPMUs installation subject to full network observability of the power system buses under fault conditions. The effectiveness of the proposed method is verified by the simulation of IEEE 14-bus benchmark system. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/78 10.51485/ajss.v4i1.78 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/78/62 Rights Information about rights held in and over the resource Copyright (c) 2019 Abdelkader ZITOUNI, Hamid BENTARZI https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 4 No. 1 (2019); 18-24 2676-1548 2543-3792 10.51485/ajss.v4i1 Subject The topic of the resource Binary teaching learning technique optimization PMUs placement fault observability Title A name given to the resource BTLBO Based SPMUs Placement Optimization for Fault Observation in Power Grid Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource RECIOUI, Abdelmadjid Date A point or period of time associated with an event in the lifecycle of the resource 2019-06-15 Description An account of the resource Pattern synthesis of Antenna array has gained much attention over the last years as they constitute an important role in the modern communication systems. Unit circle-based techniques such as Schelkunoff null placement method have proved their effectiveness to synthesize uniformly spaced linear arrays. Nonuniformly spaced antenna array pattern synthesis has been investigated and interesting results have been obtained. In this work, the unit circle representation approach is applied to synthesize nonuniformly spaced and nonuniformly excited linear arrays. The objective is to accurately place nulls in the desired directions while achieving the least possible sidelobe level. The problem is cast as an optimization problem that is solved using the Teaching Learning Based Optimization (TLBO). Examples are dealt with to prove the design approach effectiveness and flexibility for modern communication system applications. Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/77 10.51485/ajss.v4i1.77 Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Rights Information about rights held in and over the resource Copyright (c) 2019 Abdelmadjid RECIOUI https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 4 No. 1 (2019); 8-17 2676-1548 2543-3792 10.51485/ajss.v4i1 Subject The topic of the resource unit circle representation pattern synthesis nonuniform arrays Optimization TLBO Title A name given to the resource Application of the Unit Circle Representation to Pattern Synthesis of Nonuniformly Spaced and Nonuniformly Excited Arrays based on the Teaching Learning Based Optimization Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource AZZOUGUI, Y. RECIOUI, A. MANSOURI, A. Date A point or period of time associated with an event in the lifecycle of the resource 2019-06-15 Description An account of the resource Wide area monitoring system requires the integration of an advanced technology that provides real time synchronized phase angle measurements at all their measurement points. The phasor measurement units are the most advanced devices to achieve that. The objective of this work is first, to find the optimal placement of a minimum number of PMUs in some standardized IEEE systems. Next, the same method was applied to the Algerian 63 bus system. Two cases are taken into consideration: the minimum number of PMUs without considering the ZIB, then, considering the ZIB. The simulations are carried out using MATLAB/SIMULINK. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/76 10.51485/ajss.v4i1.76 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/76/61 Rights Information about rights held in and over the resource Copyright (c) 2019 Y. AZZOUGUI, A. RECIOUI, A. MANSOURI https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 4 No. 1 (2019); 1-7 2676-1548 2543-3792 10.51485/ajss.v4i1 Subject The topic of the resource Smart Grid Wide Area Monitoring Systems (WAMS) hasor measurement unit (PMU) optimal PMU placement (OPP) Grey-Wolf optimization Title A name given to the resource PMU Optimal Placement in Wide Area Monitoring Systems using Grey Wolf Optimization technique Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource Benabdelkrim, B. Benatillah, A. Date A point or period of time associated with an event in the lifecycle of the resource 2018-12-15 Description An account of the resource The study of photovoltaic systems (PV) in an efficient manner requires a precise knowledge of the I-V characteristic curves of PV modules. An accurate current-voltage (I-V) model of PV modules is inherently implicit and non-linear and calls for iterative computations to obtain an analytical expression of current as a function of voltage. In this paper, numerical approaches are proposed to forecast the PV modules performance for engineering applications. The proposed approaches were implemented in a Matlab script and the results have been compared with the datasheet values provided by manufacturers in standard test conditions (STC). These approaches permit to extract the unknown parameters and also allow quantifying the effects of module temperature and irradiance on key cells parameters. In this work, a comparative study of the performance characteristics for different modules thin films and solid is analyzed by a single-diode equivalent circuit using four- and five-parameter models and two diode model. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/75 10.51485/ajss.v3i4.75 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/75/60 Rights Information about rights held in and over the resource Copyright (c) 2018 B. Benabdelkrim, A. Benatillah https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 3 No. 4 (2018); 190-200 2676-1548 2543-3792 10.51485/ajss.v3i4 Subject The topic of the resource PV modules Parameter extraction Four parameter model Five parameter model Two diode model Environmental conditions Title A name given to the resource Mathematical Method for Parameters Calculation of electric Characteristic of Photovoltaic Module Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource RECIOUI, Abdelmadjid HAMRIOUI, Fatma Zohra BENAMROUCHE, Kenza MERABET, Oussama Date A point or period of time associated with an event in the lifecycle of the resource 2018-12-15 Description An account of the resource In many systems, it is essential to extract or enhance the desired information and remove the unwanted components. This is the simplest aim of signal processing where the filter turns out to be the key element. The objective of this paper is to investigate the characteristics of analog passive and active filters. Particularly, the interest goes to the conventional Butterworth, Chebychev and Bessel filter. A comparative study of these filters is done. The different circuits are simulated using the MULTISIM software to visualize the magnitude and phase responses. The procedure of designing the different filters is presented so that it can be used in any application. Format The file format, physical medium, or dimensions of the resource application/pdf Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/74 10.51485/ajss.v3i4.74 Language A language of the resource eng Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Relation A related resource https://ajss.dz/index.php/ajss/article/view/74/59 Rights Information about rights held in and over the resource Copyright (c) 2018 Abdelmadjid RECIOUI, Fatma Zohra HAMRIOUI, Kenza BENAMROUCHE, Oussama MERABET https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 3 No. 4 (2018); 174-189 2676-1548 2543-3792 10.51485/ajss.v3i4 Subject The topic of the resource Analog filters Passive filters Active filters Butterworth Chebychev Bessel Title A name given to the resource Analog Filter Design: A Succinct Investigation Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Title A name given to the resource Articles articles Dublin Core The Dublin Core metadata element set is common to all Omeka records, including items, files, and collections. For more information see, http://dublincore.org/documents/dces/. Creator An entity primarily responsible for making the resource INEL, Fouad Date A point or period of time associated with an event in the lifecycle of the resource 2018-12-15 Description An account of the resource Increasing the performance of production units becomes a complex task from the technical point of view, especially when it comes to ensuring the availability and continuity of production systems where maintenance plays a fundamental role; it consists of checking and ensuring permanent monitoring of the installations of these systems. This operation requires continuous and high-level training of the operators, in order to overcome this limit, we call upon the field of artificial intelligence and expert systems. The basic idea of this work is the study of the contribution of expert systems in maintenance. It is a matter of synthesizing, from a bibliographic study, a logic to allow integrating the expert systems of diagnosis of breakdowns and dysfunctions in the maintenance of the systems of production; this last expert systems gives the better performance concerning the settling time and it’s always taken Identifier An unambiguous reference to the resource within a given context https://ajss.dz/index.php/ajss/article/view/73 10.51485/ajss.v3i4.73 Publisher An entity responsible for making the resource available Laboratory of Signals and Systems, Algeria Rights Information about rights held in and over the resource Copyright (c) 2018 Fouad INEL https://creativecommons.org/licenses/by-nc/4.0 Source A related resource from which the described resource is derived Algerian Journal of Signals and Systems ; Vol. 3 No. 4 (2018); 166-173 2676-1548 2543-3792 10.51485/ajss.v3i4 Subject The topic of the resource Expert Systems FMEA Diagnosis Maintenance Decision support Title A name given to the resource Contribution to the Exploitation of Artificial Intelligence in the Domain of Maintenance Diagnosis Type The nature or genre of the resource info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article