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.
Optimal Trajectory planning is very important to the operation of robot manipulators. Its main aim is to generate the trajectory from initial to goal that satisfies some objectives, like minimization of Time interval, Acceleration, Joint Jerk, Torque, Vibration, mechanical energy consumption of Actuator and obstacle, collision avoidance criteria by satisfying the manipulator's kinematic and dynamic...
The efficiency of the turbine decreases with the increase in the erosive wear. This problem is a major concern in the case of small hydro power plants, as most of these plants are run-of-river schemes and situated in steep hilly terrains. Erosive wear of hydro turbine components depends on different parameters such as size, composition, concentration and shape of silt particles, velocity of flow and...
This paper presents fuzzy controlled SMES for improvement of transient stability of power systems. The fuzzy logic controller for SMES have been developed for single machine connected to infinite bus (SMIB). Based on the transient stability investigations carried out on SMIB for diverse loading conditions and different critical fault clearing times, a comparison of performance of proportional type...
This paper present a framework for semi automatic plant identification technique based on different flower and leaf images. A single feature is not sufficient for classification and recognition. Flower and leaf of different plant are different in shape, color, texture. This paper propose an algorithm for identification using multiclass classification based on color, shape volume and cell feature....
In this paper, effective grading of arecanuts is proposed. The Arecanut RGB image is converted into YCBCR color space. Three sigma control limits on color features are determined for effective segmentation of arecanuts. Color features are used for the grading of arecants with the help of support vector machines (SVMs) into two grades i.e. Boiling and Non-boiling nuts effectively. Experimental k-fold...
The existing Internet Protocol Television (IPTV) uses non-Unicode characters, hence the characters from many regional languages are not displayed correctly. We present a new localization framework with Unicode characters for IPTV. Here, we concentrated mainly on Online News Reading using IPTV, but this is extendable for other purposes. The language we focused was “Sinhala” which is used by most of...
This study deals with the free vibration analysis of hybrid-composite beams. The combinations for hybrid composites used in the analysis are Carbon/epoxy and Glass/epoxy. The Hybrid-Composite beams have superior material properties than ordinary composites (having fiber and matrix) due to synergistic effect. The free vibration analysis has been carried out on the hybrid composite beams having different...
The Importance of PAS (Performance appraisal System) are emphasizing asBig Public sector banks, Medium Public sector banks and Small Public sector banks. It is only through proper implementation of Performance Management System, quality workforce can be retained. Usually a separate Independent Agency is appointed to evaluate the performance of the employees which is usually carried out online. The...
Wireless Access Networks, such as Wi-Fi, have been widely deployed due to their convenience, portability, and low cost. However, they still suffer inherent shortcomings such as limited radio coverage, poor system reliability, and lack of security and privacy. Privacy threat is one of the critical issues in Multi hop Wireless Networks, where attacks such as traffic analysis and flow tracing can be...
Computer Forensic process consists of Preparation, Acquisition, Preservation, Examination and Analysis, and Reporting. With the booming of the virtualization technology and the popularity of virtual machines for end users to deal with daily works, the probability of using virtual machines for malicious purposes keeps increasing. In this paper we propose a methodology by using virtual forensics for...
This paper deals with the optimal cost analysis of hybrid renewable energy system (HRES). The optimal cost analysis of HRES is done using Hybrid Optimization Model for Electric Renewable (HOMER). The HOMER energy modeling software is a powerful tool for designing and analyzing hybrid power systems, which contain a combination of conventional generators, cogeneration, wind turbines, solar photovoltaic's,...
Analysis of the HRV signals towards classification of pre-meditative and meditative states has been widely accepted among the research communities. However, none of the existing methods used so far successfully classifies the meditative and pre-meditative states. In this article, we introduce a new approach, which is based on Similarity Index introduced by A.C.C. Yang et. al. The method calculates...
Cloud computing is a promising computing model that enables convenient and on-demand network access to a shared pool of configurable computing resources. The first offered cloud service is moving data into the cloud. data owners let cloud service providers host their data on cloud servers and data consumers can access the data from the cloud servers. This new paradigm of data storage service also...
The pectoral muscle represents a predominant density region in most Medio-Lateral Oblique (MLO) view of mammograms. However, the presence of artifacts and pectoral muscle can disturb the detection of breast cancer and reduce the rate of accuracy in the Computer Aided Diagnosis (CAD). Its inclusion can affect the results of intensity-based image processing methods and needs to be identified and suppressed...
The alkali pretreatment and enzymatic hydrolysis of banana pseudostem (BPS) for the production of ethanol was optimized using response surface methodology. Alkali concentration, temperature and time were considered as independent variables and reducing sugars concentration was a response variable. Pretreatment of BPS was performed at different alkali concentration, temperature and pretreatment time...
This paper presents the development of design, modeling and simulation for variable speed wind turbine doubly fed induction generator are simulated through computer software tool using MATLAB/SIMULINK. A variable wind speed turbine doubly fed induction generator with power electronics interface is modeled for dynamic simulation analysis. The MATLAB/SIMULINK is provided to implements the wind turbine...
In deregulated electricity market, the power marketers share a common transmission network for transferring power from generating station to distribution station. All the market participants, in the open access environment wants to maximize their profit, so they try to obtain the electrical energy from the cheapest source, which may lead to congestion in the transmission network and affect the system...
In this paper, a modular approach for Simulink implementation of induction machine in arbitrary reference frame is described in step by step manner. After implementation, model performance is shown in stator, rotor and synchronous reference frame.
Graph cut image partitioning is used to segment any type of the image data. The image data is transformed by a kernel function so that the piecewise constant model of the graph cut formulation becomes applicable. The method affords an effective alternative to complex modeling of the original image data while taking advantage of the computational benefits of graph cuts. Using a common kernel function,...
Automated and early diagnosis of Diabetic Retinopathy is a crucial need. ‘Diabetic Retinopathy’ (DR) is the major cause of blindness among people. It is a progressive disease classified according to the presence of various clinical abnormalities. DR patients perceive no symptoms until the disease is at late stage. So early detection and proper treatment has to be ensured. To serve this purpose, various...
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.