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We present an implementation of disk arrays(RAIDs) in distributed networked data storage environment by applying an error-correcting to accommodate fault tolerance feature. Any of the current state-of-the-art distributed file systems, such as MooseFS [1], can be used as an underlying data space where low density-MDS (Maximum distance separable-Low density parity check) array codes [3] is used as a...
Intel® Software Guarded Extensions was introduced to protect sensitive information of computer systems. It provides isolated execution area named enclave. The security enhancing feature (i.e. enclave) of Intel® Software Guarded Extensions allows only serialized multithreaded execution for a program. In this paper, we propose fairness-aware thread scheduling method to solve the problems that can be...
Due to rapid advancement of technology, embedded devices are evolving quickly and closing the gap between virtual and real work. Embedded devices should be able to use services and data offered by other embedded devices efficiently. This requires an efficient and scalable inter device communication framework which can be used to provide Internet of Things (IOT) ecosystem as well. In this paper we...
We investigate the importance of the computational overhead when machine learning methods, such as SVM, LASSO, Adaboosting and Adabagging, are used for automatic security classification.
While hardware in a computer have developed greatly, users still has faced problems with its speed, and memory in terms of its performance. The recent developments in memristors made it possible to reduce the problems, as memristive models have been be designed to suit the requirements of time. However, different characteristics are expected from memristors depending upon its applications. The paper...
The main focus of this study is to develop an automatic vowels sequence reproduction system for a talking robot, which is built to reproduce human voice based on the working behavior of human articulatory system. The control system using Matlab software to drive the articulatory motors of the talking robot. A sound analysis system is developed to record a sentence spoken by a human (mainly vowels...
One of the key applications of low Power wireless sensor networks is wireless metering for smart grid. In such wireless sensor networks, nodes are often battery powered, and hence power is the main constraint for the network. To reduce the power consumption in wireless sensor network with spanning tree structure, data was aggregated from ingresses and send only one aggregated data packet to egress...
This paper presents the experimental results obtained from a memristor-based Wien-bridge oscillator implemented using a new memristor emulator. The memristor emulator can be implemented using off-the-shelf components. The experimental results show that nonlinear chaotic as well as linear sinusoidal oscillations can be obtained from the same circuit by careful adjustment of the value of a single resistor.
Ball-riding robot is fascinated to humans because of its characteristic. Euler-Lagrange is used to describe the robot dynamics. By including the actuating motor dynamics into the robot equation, robot precise dynamics model can be obtained. The real robot is implemented by using acrylic and aluminum. Robot is controlled by using ARM-Cortex M3 embedded controller. Inertia moment unit information is...
This paper proposes a vehicle detection algorithm using pre-processing and lamp detection at night-time. First, we present a vehicle detection using contrast enhancement. By applying a specific contrast enhancement to night-time images with low exposure, we can enhance salient features even at dark night-time. Next, we detect a pair of rear lamps from the pre-processed image(s). Finally, we can find...
We propose a new fast algorithm for solving one of the standard approaches to ill-posed linear inverse problems (IPLIP), where a (possibly non-smooth) regularizer is minimized under the constraint that the solution explains the observations sufficiently well. Here we are implementing an Augmented Lagrangian method [4] provides a strategy to handle equality and inequality constraints by introducing...
Driving in nighttime environment is a difficult work due to low visibility, drowsy and impaired drivers. It is crucial to make a good algorithm to detect automatically abnormal moving vehicles surrounding the host vehicle to indicate early collision warning. This paper proposes an efficient approach to detect on-road abnormal moving vehicles in nighttime. Oncoming, change speed, change lane, roadside...
Face recognition systems play a vital role in many applications including surveillance, biometrics and security. In this work, we present a face recognition system using Hidden Markov Model (HMM) and Singular Value Decompositions proposed by Naimi an Davari in [3]. In this system, we use parallel technique to accelerate the recognition process. Besides, we use reduced HMMs instead of full HMMs to...
Premature labor infants, born before the 37th week of gestation, may require oxygen therapy as an integral part of treatment and respiratory support. Immature lungs can cause common complications in these infants such as respiratory distress syndrome (RDS). To treat such complication, oxygen must be given to these babies carefully. Too much or too long of oxygen exposure to these infants can cause...
Open source hardware (OSHW) has been created by the design movement and is a promising technology as it applies a compatible concept to a variety of components. Also, OSHW is intended to enable anyone to study specific hardware, makes modifications, and share hardware changes with peers. In this paper, we present the sensor interface application of OSHW. To develop embedded systems using the concept...
This paper introduces a step size selector to enhance tracking performance of the conventional P&O algorithm. The characteristic of the V-D curve is analyzed extensively in order to develop the selector. The ideal buck-boost converter is applied in the MATLAB/Simulink simulation model. Simulation results suggest that the proposed algorithm responses to the abrupt change in solar irradiance much...
Green data center is becoming more recognized as a likely key trend in the future of Information and Communications Technologies. It attracts growing interest among many scientists today due to many of its possessed benefits, such as increasing energy saving levels, cost reductions, as well as decreasing carbon emissions. In a data center, Server Virtualization and Live Migration technologies facilitate...
This paper presents a new programmable analog electronic proportional-integral-derivative controller circuit using current conveyor transconductance amplifiers as active elements. Unlike previous works, proportional controller, proportional-integral controller, proportional-derivative controller and proportional-integral-derivative controller of proposed structure can be programmed by the bias currents...
Developments in power electronics have enabled widespread application of Pulse Width Modulation (PWM) inverters, notably for connecting renewable systems to the grid. This study demonstrates a high quality power of a stand-alone inverter, whereby the comparison between the power quality of stand-alone inverter with battery storage (off-grid) and power quality of the utility network is presented. Multi-loop...
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