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.
The Adder is the important part in any processor/controller design. Till date there are a plenty of 1-bit full-adder circuits which have been proposed and designed. In this paper we have a analytic and comparative description of various full adder circuits, considering various constraints like power consumption, speed of operation and area. The circuits are designed in the virtuoso platform, using...
The electric power is transmitted and distributed to the consumers along the transmission and distribution lines. Performance of distribution line becomes inefficient due to reduction in voltage magnitude and increasing distribution losses. Distribution system contributes the greatest amount of power loss. Distribution system reconfiguration is one of the techniques to minimize the losses. The standard...
In today's fast growing and increasing complex world of VLSI circuits, test quality has significant effect on the quality of the product. A malfunctioning circuit is a result of design flaw, manufacturing defects or both. Testing is used as a measure to estimate the quality of design. High quality testing minimizes defect-per-million (DPM) and thus can significantly reduce manufacturing costs and...
Post-acquisition denoising of medical images is of importance for clinical diagnosis and computerized analysis, such as tissue classification and segmentation. During the image generation, imaging devices are quite often interfered by various noise sources. Impulse noise which causes the medical images to remove important image details such as edges, contours and texture. In this paper, a new filtering...
Information exchange over internet is increasing drastically day-by-day. Almost all multimedia information is in digital form. To protect the multimedia data from illegal manipulation and provide authenticity, techniques for copy right protection and content authentication of digital media is required. Digital watermarking is one of the techniques for protection and identification that hides authentic...
Palm print is one of the important hand related biometrics characteristics with high user acceptance. A new classification approach using heart line feature of palm print is proposed in this paper. The hand image captured from digital camera is preprocessed to find palm print Region of interest (ROI). Gabor filters are applied on palm print ROI and line detection operation is proposed to extract heart...
Automatic speech recognition is one of the challenging area in the field of speech signal processing. Automatic speech recognition technology converts speech signal into text. This paper presents the implementation of isolated kannada word recognizer using Vector Quantization (VQ) and Fuzzy-C Means (FCM) techniques. The paper compares and contrasts the recognition accuracies of FCM and k-means techniques...
In this paper we discuss about the implementation of Active Shape Model based contour detection algorithm on the digital x-rays of lungs. The effect of considering the mean values while forming the gray level profiles is shown and a modified method where median values improve the result is also presented.
The frontier area of research in the field of pattern recognition and image processing is handwritten character recognition. This leads to a great demand for OCR system containing handwritten documents. In order to recognize the text present in a document, an Optical Character Recognition (OCR) system is developed. In this paper, OCR system for handwritten Kannada characters and numerals is developed...
Pregnancy complications are a leading cause of maternal deaths in the present era. There is a rising need to protect pregnant women from possible threats posed by abnormalities induced by changing physiological parameters. Pregnancy is a delicate stage and requires acute medical attention and care. Decision tree classification algorithms are popular and powerful methods most suitable for the medical...
A greenhouse is a structure generally made of glass, designed to provide protection and controlled environment to raise plants indoors. In order to achieve high quality and quantity of produce, proper management and data collection of the greenhouse environment is required. Manual practice of plant monitoring is laborious and time consuming. The proposed greenhouse system is an application which demonstrates...
Data are very significant in various ways. Data are facts or statistics collected together for reference or analysis. As the data are growing continuously, there should be means to find the correlations among them and use those relationships for analysis and prediction. This paper presents how horizontally distributed databases are mined for association rules using Fast Distributed Mining. These association...
One of the major difficulties encountered by current face recognition systems deception in the problems of handling partial face recognition such as varying poses, illumination, light scattering, diffused faces i.e., recognition of faces in random in-depth rotations. The face image differences caused by rotations are often superior to the inter-person differences used in distinctive identities. Initially...
The ephemeral power quality distortions such as voltage swell, harmonics, transients, voltage sag are incrementing every day with the proliferation of number of solid state contrivances. The technical difficulties like mis-operation, heating are upshots of this and hence identification and relegation of the noise become an essential work. The three-phase voltage distortions are decomposed by the Multivariate...
An approach for selection of features using principal component analysis technique to classify segmented (isolated) Kannada characters is presented in this paper. Artificial neural network is used as classifier. The ability of neural networks to learn by ordinary experience, as we do, and to take sensitive decisions give them the power to solve problems found intractable or difficult for traditional...
Electrical transformers are very widely used in the Electrical Power sector at frequencies of 50Hz/60Hz. The liquid dielectric used in power transformers for many decades [1] has been mineral oil. Special applications such as Defence and Airborne equipments use silicone fluid as a dielectric coolant because of its higher operating temperatures of about 150°C– 200°C. Of late, natural vegetable seed...
Sulfur hexafluoride (SF6) is the most common gas insulation medium used in a gas insulated switchgear (GIS) system. Though SF6 is a very good insulator, it is also a potential greenhouse gas having a global warming potential of 22 800 over a period of 100 years. Therefore its leakage to the environment should be strictly monitored. And also partial discharge or arcing in the SF6 filled switchgear...
This work focuses on proposing a new structure for asymmetric multilevel inverter. In the proposed topology, a switched capacitor (SC) and conventional series inverter are combined and connected in cascade. The proposed multilevel inverter finds its application in photovoltaic inverters which has numerous advantages. Firstly, it converts power for AC requirements from comparatively low DC voltage...
Transformerless single phase photovoltaic inverter has attracted power generation system due to its higher efficiency and low cost. One of the main problems in transformerless single phase photovoltaic inverter is to control leakage current appearing between parasitic capacitor and ground. The leakage current has to be controlled to avoid EMI problem and circuit damage. The main goal of the proposed...
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.