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The importance of Conventional Current Transformer (CCT) for the monitoring and protection in power systems is not ignorable. Although there has been an extensive use of CCT for a long time but a lot of problems and issues such as inrush current, saturation, current transformer ratios, etc. faced by CCT make its use quite limited. Issues arising in CCTs have pulled the attraction of researchers and...
In this paper, we propose an energy efficient scheme that helps to choose, adaptively, the number of Message Authentication Codes required to be attached to a data report being forwarded to the base station in probabilistic data filtering scheme. The proposed scheme achieves greater energy conservation and increased network operational time in the presence of the fabricated report and false vote generation...
Advanced Metering Infrastructure; it is an imperative component of the smart grid and a responsible ingredient to collecting, measuring and analyzing energy usage data which is transmitted to concentrator and control centre on utility side. The security of advanced metering infrastructure is one of the most concerning issue in smart grid implementation. Advanced Metering Infrastructure exhibits different...
With the advances in the manufacturing of photo voltaic cells, Dc-Dc micro grids are gaining a lot of attention. With the concept of parallel operation of different Dc energy sources like photo voltaic cells, fuel cells, storage banks like super capacitors and different type of batteries has evolved the structure of Dc micro grids. To get benefit from the concept of dc micro grids, the problem of...
With increasing dominance of renewable energy resources and DC household appliances, the novelty of DC micro grid is attracting significant attention. The key interface between the main supply grid and DC micro grid is AC to DC converter. The conventional AC to DC converter with large output capacitor introduces undesirable power quality problems in the main supply current. It reduces system efficiency...
Content Addressable Memory is a data storage device that is widely used in many applications. It is especially used in areas needing fast memory access. However, due to use of parallel based search approach and frequent charge and discharge of Match lines and Bit lines/ search lines; the power consumption of CAM is considerable. This paper presents a new cell design for reduction in power consumption...
This paper investigates real time problem of cost efficient energy distribution within smart micro-grids (SMG). The aggregator announces a day-ahead price of electricity, and is most often not fully aware of on spot availability of renewable resources. Sometimes, users also encounter estimation errors in their day-ahead energy procurement. In both situations an extra cost is incurred to aggregator...
This article addresses the synchronization problem for two different chaotic systems with state time-delays, disturbances, and mutually Lipschitz nonlinearities. For analysis of the two different kind of chaotic oscillators, adaptive control theory, mutually Lipschitz condition and linear matrix inequalities (LMIs) based methodology are utilized to suppress the synchronization error and mismatch between...
Design of microstrip 4 × 4 Butler matrix for millimeter-wave (mm-Wave), K and Ka-bands beam-steering applications, is presented in this paper. The proposed design utilizes multilayer printed circuit board (PCB) technology. The proposed 4 × 4 Butler matrix configuration consists of four hybrid couplers and two phase shifters without using crossovers. The design is based on coupled transmission lines...
Named entity recognition, a task that represents atomicity as well as granularity is a first step in any language processing system. The advent in typological orientation of literature or text and its availability in the form of annotated and un-annotated corpora have led to a continued research effort directed towards achievement of yet an optimized algorithmic evolution for identifying named entities...
This paper investigates the trade off between consumer satisfaction and the electricity cost. Due to forecast error in day ahead low price energy procurement and random realization of real time renewable dc power, it is difficult for an Intelligent Energy Management (IEM) operator to guarantee a satisfaction level to its users. The problem is more complex in the context of hybrid AC/DC smart grid,...
Strain determination in fetal hearts is essential but conventional methods do not provide opportunities for orthogonal strain analysis and require the use of EKG-gating. A new non-gated 4D echocardiography method was tested for accuracy in strain computation. Fifteen rabbit hearts were studied. Each heart was mounted in a water tank to facilitate ultrasound scanning, connected to a calibrated pump...
Impedance matching transformer is used to match the output impedance of the corresponding signal source to maximize the power transfer to the load. Design of impedance matching circuit by converting series circuit into parallel equivalent circuit is given. Instead of using conventional electromagnetic transformer, piezoelectric transformer is used. The piezoelectric transformer is treated as two port...
Face recognition is one of the most important computer vision problems. Its importance is largely due to the security issues the world is facing at the moment and also the requirement of a more robust system security standard. This work investigates the use of facial weighted distance transform to improve the face recognition rate. Weighted distance transform, also known as geodesic distance, not...
Colorectal cancer is among the highest prevalence cancer worldwide. As current treatments have many side effects, there is a need to find a better cure that is non-toxic and has no undesirable side effects. Honey is found to be a potential cure. Thus, antiproliferative effect of Gelam honey to colon (HCT116) cancer cell lines was studied. HCT116 was treated with Gelam honey and observed under inverted...
Tinaspora crispa and Gelam (Melaleuca sp.) honey were identified as potential anti-proliferative agents due to presence of high antioxidant activity. In this research, human breast adenocarcinoma (MCF-7), human colorectal carcinoma (HCT116), human hepatocellular carcinoma (HepG2) and adenocarcinoma human alveolar basal epithelial (A549) cell lines were treated with both extracts and further diagnosed...
Traditionally SSL/TLS protocol is used to provide secure and trusted communication by implementing public key cryptographic algorithms such as RSA, DSA and DH. These algorithms have several performance and scalability issues for real time (audio, video, instant messaging) streaming and messaging. Against large sized RSA keys, ECC based public key cryptography offers equivalent security with smaller...
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