The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In the present scenario, Switched reluctance motors (SRM) are growing prominence by industry due to their simple and craggy motor construction, the proficiency of running at wide speed range, their simple unipolar current drive system, high torque to inertia ratio, high consistency, and low cost. This study gives the information about different types of faults occurring in Switched reluctance motor...
Languages spoken by us, on the basis of how they use tone to convey a meaning, can be grouped into two categories: Tonal and Non-Tonal languages. Pitch is used as a figure of speech in the case of tonal languages. The connotation of a word changes depending on the pitch or tone used. Both pitch and pitch range, are found to be lower for non-tonal languages. A speech signal contains both speaker and...
Password-based authenticated key exchange (PAKE) protocol provides secure communication between two parties based on cryptographically agreed session key. But such protocols have one major disadvantage, i.e., it is vulnerable to man-in-the-middle, offline dictionary, and other different types of attacks. In this paper, we present a secure biometric and reversible cellular automaton (RCA) based 2-party...
An electrically small substrate-integrated waveguide (SIW) antenna is investigated. The electrical size of the circular cavity SIW is reduced by repetitive segregation along the quasi-magnetic wall to form 64th-mode SIW antenna while maintaining comparable performance to the full-mode SIW. The ground plane behind the antenna is removed to obtain quasi-omnidirectional radiation pattern. The proposed...
This paper proposes an accurate and efficient strategy for identification of Hammerstein model based nonlinear systems using Craziness based Particle Swarm Optimization (CRPSO) algorithm. The closeness of estimation of the proposed CRPSO based identification scheme has been justified with the optimal value of MSE and the corresponding comparative study with the other techniques reported in earlier...
Diabetic Retinopathy is a vascular disorder which can result in complete blindness. So, detection and treatment of it can prevent vision loss. This paper deals with feature extraction of retina using Fuzzy C Means and morphological methods and classification of whether the patient is suffering from Diabetic Retinopathy or not using Support Vector Machines (SVM). An automated detection of Diabetic...
This paper presents an efficient approach for identification of fourth order nonlinear polynomial Hammerstein models using simplex particle swarm optimization (Simplex-PSO) algorithm. The accuracy of the proposed Simplex PSO based identification scheme has been justified with the optimal value of MSE and the corresponding comparative study with the other reported approaches. The statistical information...
This paper presents an efficient approach for identification of a nonlinear Hammerstein model using Bacteria Foraging Optimization (BFO) Algorithm. The accuracy and the efficiency of the proposed BFO based identification scheme have been justified with the optimal value of MSE and the corresponding comparative statistical information. The statistical information of the MSE has also been provided to...
In this paper an efficient and accurate approach for identification of Hammerstein model has been proposed using Social Emotional Optimization Algorithm (SEOA). In SEOA method, behaviour of human being for attaining superior position in society is structured. The accuracy of the proposed SEOA based identification scheme has been justified with the optimal value of MSE and their corresponding comparative...
This paper proposes an accurate and efficient approach for identification of a two stage cascaded Hammerstein model using Particle Swarm Optimization with Aging Leader and Challengers (ALC-PSO) algorithm. To enhance the computational speed and to avoid the premature convergence criteria, ALC-PSO is used. The accuracy and the precision of the proposed ALC-PSO based identification scheme have been justified...
Mobility pattern of an adhoc network affects its connectivity. Random Waypoint Mobility Model is widely followed by Mobile Adhoc Networks (MANET) in real world scenario. This mobility model is popular because it represents random motion of nodes which can move in any direction at any moment at a random speed. In this paper, the connectivity of a MANET, following Random Waypoint Mobility Model has...
At present, Switched reluctance motors(SRM) are increasing interest by industry because of their simple and rugged motor construction, the capability of running at high speeds, high torque to inertia ratio, their simple unipolar current drive system, high reliability, and low cost. This study gives the information about different types of faults occurring in Switched reluctance motor (SRM) drives...
In this paper, a new simulation tool is described which is used to present a decentralized approach on Mobile Ad Hoc Networks. The simulation is developed in Matlab using a decentralizing algorithm. The paper includes a distributed algorithm for adaptive movement of nodes in a MANET (Mobile Ad hoc Network) to maintain the overall topology of the network. The proposed algorithm assumes the presence...
Connectivity of Mobile Ad-hoc Networks (MANET) is highly dependent on the mobility model it follows. From previous studies, it has been found that Random Waypoint Mobility Model (RWP) is widely used to simulate performance of the MANETs. This mobility model resembles the mobility of people using mobile phones in a given area. Connectivity is an important issue in a MANET following RWP model and hence...
The project presents a versatile security and alarm system which can be used by individuals, corporations and establishments which require a cheap but reliable security system. The idea behind this project is to provide its users with a simple, fast and reliable way to get help during emergency situations. The device can be placed at any remote location which can be easily accessed by the user. It...
This paper presents modeling and simulation of a standalone PV (Photo-Voltaic) system with upgraded multilevel Inverter using MATLAB/SIMULINK. The modeling includes a 25 level inverter which claims that the total harmonic distortion (THD) reduced to approximately 3%. The proposed 25 level inverter uses only 12 numbers of switches which is very less than that of diode clamped, capacitor clamped and...
This paper proposes an optimal control of PI controller for VSC-HVDC system operating in parallel with AC transmission line. A non-linear model of VSC-HVDC system is developed through MATLAB programming. This paper clearly clarifies the faster stabilization of the network as compared to a conventional PI controller without optimal control. In order to tune the parameters of the PI controller, a heuristic...
The Middlesex Spatial Interactive Visualisation Environment (M-Sieve) is a spatiotemporal visual analytics tool for exploring computer network activity. M-Sieve allows the user to filter and visualize data through facets to explore and find patterns. To help guide exploration, we developed a set of rules which are used to derive a variable we call the ‘Concern Level Assessment’ (CLA). The CLA is based...
A family of variable offset-time based wavelength scheduling schemes for OBS edge-nodes, is proposed which performs 4–20 times better than ordinary LAUC-VF schedulers in terms of byte loss rate (ByLR). The schedulers accept a minimum and a maximum limit of offset-time along with the length of the burst as input and then return the appropriate wavelength and the exact offset-time, to be used for the...
To ensure safe and reliable operation of power system based on wind energy, usually plant operators should satisfy grid code requirements such as grid stability, fault ride through (FRT), power quality improvement, grid synchronization and power control etc. To satisfy the grid code requirements of wind turbine, usually grid side converter is playing a major role. So in order to improve the operation...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.