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We present a new trajectory based approach for state feedback stabilization of switched linear continuous-time systems with a time-varying input delay. In contrast with finding classical common Lyapunov function or multiple Lyapunov functions for establishing the stability of the closed-loop switched system, the new trajectory based approach relies on verifying certain inequalities along the solution...
One of important factors to maximize the utilization and efficiency of any Photo-Voltaic (PV) system is the Maximum Power Point Tracking technique (MPPT). MPPT is specifically used to extract the maximum available power form the PV array, maximum power can be achieved by tracking the Maximum Power Point (MPP) using specialized algorithms such as Perturb and Observe (P&O) and Incremental Conductance...
During the past decade a significant ascend in growth of Information and Communication (ICT) Technology has been observed. This growth has been also been witnessed in abutment of social network infrastructure. Nowadays professional and social network portal are the most prominent over the internet. This prominence create a pressing need to device hand held wearable's for effective and efficient social...
A linear-to-circular polarization conversion transmitter is proposed using 3 × 3 periodic metallic strips, which are twisted 900 in the upper and bottom layers. The metallic strips are printed on both sides of the dielectric substrate that are subjected to enhance the axial ratio bandwidth at resonance frequencies. The proposed structure is excited by a normal incident of x-linearly polarized wave,...
Three samples of strain sensors have been fabricated and presented in this paper with different methods. First sample was made by spray coating of MWCNTs on poly-dimethylsiloxane (PDMS) substrate; second sample was by depositing of 0.3 wt% of MWCNTs powder on PDMS substrate at 100°C and third sample was fabricated by CVD method to grow MWCNTs array on SiO2 substrate. It revealed from experiment results...
A non-intrusive computer vision based ideas has been utilized for the development of a Drowsy Driver Detection System. The small camera has been used by system that focuses straight towards the face of driver and checks the driver's eyes with a specific end goal to recognize fatigue. A warning sign is issued to caution the driver, in such situation when fatigue is recognized. This paper illustrates...
Nowadays the medical image processing has a vital role in diagnosis a human health in most of the health care institutions. Recently intensive research have been done in ultra sound imaging application to remove the blurry of noise image which is affected by random noise during the acquisition, analyzing and transmission. The blurry image produces inaccurate results that are difficult for doctors...
Residential sector constitutes major portion of electricity market and majority of the worldwide consumers are not able to interact with grid dynamically according to fluctuating conditions. Smart Grid is proposed to overcome the shortcomings of the existing grid with integrated bidirectional communication and control infrastructure including dynamic Demand Side Management (DSM). This paper presents...
The Wavelet Transform remained quite rapidly used technique today for analysing the signals. For image edge detection, wavelet transform provides facility to select the size of the image details that will be detected. Wavelets transform separates the lower frequencies and higher frequencies easily, which is prime important for edge detection. The wavelet scale sets the size of detected edges. For...
Multimedia technology is known as the single repository source for information retrieval that includes images, audio and video. Nowadays, it is growing with tremendous amount in the field of communication technology. Traditional text based retrieval techniques of information retrieval are inefficient at searching user's intended information from the large multimedia database. To address this problem,...
Medical Imaging is currently a hot area of biomedical engineers, researchers and medical doctors as it is extensively used in diagnosing of human health and by health care institutes. The imaging equipment is the device, which is used for better image processing and highlighting the important features. These images are affected with random noise during acquisition, analyzing and transmission process...
Facial Recognition is probably one of the most commonly used biometrie characteristics used by humans for recognition. This is one of the reasons why it has been subject of intense research for the past 30 years or so. In this time a lot of work is being done not only in the development of stable, real time facial recognition system but also in acquiring different modalities of facial imagery for...
Aerosols are solid or liquid particles suspended in the atmosphere coming from both natural and anthropogenic sources, they are distributed through wind currents to the places even where they are not formed. Hence, atmospheric aerosols have varying spatial and temporal concentration on both regional and global scale. They play a very vital role in regulating climate by modifying earth's radiative...
Recently cognitive radio based approaches have been introduced in inter-vehicle communication (IVC) system due to inherent advantages. Spectrum mobility is very frequent in IVC due to the mobility of vehicles and unpredictable radio frequency (RF) channel. This requires an efficient white space optimization technique to ensure spectrum management function. In this paper, a modified genetic algorithm,...
This paper is an extension and continuation of the previous authors' work, where a practical solution for a novel single phase PM BLDC motor model has been developed, utilising an asymmetrical stator pole design. An accurate 2D finite element simulation was employed to numerically analyse the magnetic field distribution inside the motor. The results are used to prove the selected stator/rotor arc...
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