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 modern digital era, the storage of digital data in multi-users systems and transmission over the internet is prime important in the society. The cryptographic technique is one of the possible solutions for protecting digital information for unauthorized uses. In this technique, the encryption algorithm should be simple to design and implementation. In the proposed article, a novel color image...
Implantable medical device (IMD) with on-chip antenna (OCA) has got an increasing attention for the biotelemetry applications to monitors the patient's health condition by transmitting the sensed bio-signal to the monitoring device outside the body. This paper presents a novel OCA designed by using standard 0.18um CMOS technology to operate at ISM 2.45 GHz. Using two oxide layers namely, Silicon dye...
Particle Filter (PF) is a popular sequential Monte Carlo method to deal with non-linear non-Gaussian filtering problems. However, it suffers from the so-called curse of dimensionality in the sense that the required number of particle (needed for a reasonable performance) grows exponentially with the dimension of the system. One of the techniques found in the literature to tackle this is to split the...
In this paper a novel modulation technique is proposed to eliminate instabilities such as subharmonic and chaotic oscillations in dc-dc switching converters. This modulation technique injects a stabilizing signal which is generated internally from its own state variables so that the system is free from the problems due to externally injected signal, such as frequency mismatch, phase shift, etc. Stability...
Power electronic systems exhibit different types of fast- and slow-scale instabilities which limit the stable operating range of the parameters. It has been shown that the stability of complex power electronic systems can be fruitfully investigated using the Filippov method, where the stability of the system is given by the eigenvalues of the monodromy matrix, which is a combination of the state transition...
We report here a wet chemical approach towards the synthesis of Copper Oxide (CuO) Nanoparticles. CuO Nanoparticles were produced in the reaction between Copper sulphate and sodium hydroxide (NaOH) at room temperature. The fabricated nanoparticles were characterized using X-ray diffraction to study the crystallinity, purity and crystal structure of the nanoparticles. The morphology was observed in...
In this paper, the variation of side lobe level (SLL) of ‘optimized uniformly excited time-modulated linear antenna array’ (OUE-TMLAA) with different number of antenna elements is presented. To realize the optimized array patterns of the arrays, sideband levels (SBLs) is suppressed to below −30 dB and the increase on first null beam width (FNBW) is restricted within 35% of that of the ‘uniformly excited...
In Satellite ATM (SATM) networks, the various traffic patterns and dynamically changing topology call for effective network traffic control mechanisms to reduce congestion and utilize network resource efficiently. There are two major challenges in the SATM traffic control. On one hand, the time varying traffic arises big challenges for guaranteed service in ATM. On the other hand, due to the permanent...
Digital video communication is becoming popular with the recent advances in the satellite and wireless networks, and the growing popularity of the World Wide Web. The mobile users generally have limited bandwidth, and hence it is crucial to develop efficient scalable video coding scheme for low bandwidth channels. The current video coding standards are primarily based on discrete cosine transform...
Mobile web browsing is becoming very popular with the recent advances in the satellite and wireless networks, and the growing popularity of the World Wide Web. The mobile users generally have limited resources, such as low bandwidth and low-resolution terminal, compared to the conventional desktop users. It is important to develop techniques that will enable the mobile users to access the web efficiently...
Congestion management (CM) is one of the severe problems in deregulated or liberalized electricity industry. In a liberalized electricity market, transmission lines are normally operated near its rated capacity and sometimes, this may cause congestion in the lines. This is because every market participants have the intention to maximize their profits. Failure of managing congestion properly may ultimately...
Development of solar energy worldwide in the last ten years has brought into purview the maximum power point tracking and module mismatch losses. Such losses are mainly occurred by partial shading of the solar panel and various kinds of solar modules. These losses can be reduced by different parameter analysis. There are five various interconnected plans, which depict reasonably reliable power production...
Optimal reactive power planning is one of the most challenging problems in power system operation. Different techniques including classical and modern heuristic methods have been utilized to address the problem successfully. It is observed that success of heuristic techniques largely depends on the selection of some user defined control parameters. Multiple runs are required to find the optimal values...
A novel approach using Differential Evolution (DE) is proposed for linear array failure correction. In presence of the failure of array elements, only the inter-element spacing's between the array elements are adjusted to regain the pattern closed to the original one. The proposed approach is a cost effective method as no additional attenuators or phase shifters are required. A fitness function has...
A system using frequency offset based transmit-reference (TR) modulation allows multiple nodes to transmit simultaneously and asynchronously without any mutual timing coordination. Thus, such a system provides inherent capabilities for a multiple access in the medium access control (MAC) layer to coordinate the shared use of the common wireless medium among the nodes of the wireless sensor network...
In this paper we propose a novel solution to the labeled multi-target tracking problem. The method presented is specially effective in scenarios where the targets have once moved in close proximity. When this is the case, disregarding the labeling uncertainty present in a solution (after the targets split) may lead to a wrong decision by the end user. We take a closer look at the main cause of the...
Track fusion is the problem of combining tracks based on different sensor observations. In the sequential Monte Carlo framework, track fusion is solved by either imposing linear or Gaussian assumptions, or relying on kernel density estimation (KDE). In this paper, we introduce a novel track fusion algorithm suited to the hierarchical multi-sensor architecture. The algorithm can be incorporated in...
Economic Load Dispatch (ELD) is an important problem in power system optimization. It helps to create very efficient unit management plans and keeps the generation cost to a minimum. In this paper, we have addressed ELD problem with a novel improved algorithm called Elitist Cuckoo Search (ECS) keeping in mind the practical constraints of a plant such as generation ramp rate and prohibited zones of...
Multidrug defiant organisms result in severe mortality and stand as a big challenge worldwide. The gram negative bacilli (GNB) in particular is a massive cause of concern with high levels of resistance due to novel mechanisms. This study deals with thorough analysis of the phylogeny, evolutionary divergence and protein tertiary structure analysis of an important drug target, the bacterial metallo-amidase...
Solving Maxwell's equations in problems related to electromagnetism is a tedious task, firstly due to high mathematical complexity and secondly due to the existence of resultant electromagnetic (EM) fields which is the combination of electric and magnetic fields that are not easy to visualize and understand. Visualization of electromagnetic waves will aid in the understanding and designing of antenna,...
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.