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Approximate computing is gaining a lot of traction due to its potential for improving performance and consequently, energy efficiency. This project explores the potential for approximating locks. We start out with the observation that many applications can tolerate occasional skipping of computations done inside a critical section protected by a lock. This means that for certain critical sections,...
Alternative positioning navigation by DME service network is used in many cases on-board of aircraft. This problem is topical in case of bad accuracy of GNNS, spatially during takeoff or landing phases of aircraft flight. In the paper, an accurate approach of positioning by data from DME with support of all available DMEs signals in particular point of airspace has been discussed. An availability...
With the widespread adoption of virtualization, intrusion detection systems (IDSes) are increasingly being deployed in virtualized environments. When securing an environment, IT security officers are often faced with the question of how accurate deployed IDSes are at detecting attacks. To this end, metrics for assessing the attack detection accuracy of IDSes have been developed. However, these metrics...
In the past few years the mobile network's telecommunication field has known a huge progress in term of developing new standards to enhance the quality of service (LTE, LTE-A, 5G Ω). Positioning techniques in LTE (Long Term Evolution) network are gaining more interest since the majority of mobile communication operators are deploying their 4G Solution all over the world. In this paper, we investigate...
The concept of indoor location positioning has been around for decades now. Despite the existence of many algorithms that can achieve location positioning with remarkable performance in terms of accuracy, implementation of such algorithms has not been done on a large scale. There is a trade-off between the positioning accuracy and the complexity of the algorithm. This paper introduces and explains...
This paper deals with a discretization of multivariable fully actuated linear systems controlled with an Internal Model Control (IMC). The proposed IMC is based on a specific inversion method and it presents an extension to the case of Multi-Input-Multi-Output (MIMO) discrete-time systems. The case of fully actuated linear system is considered and it approved the effectiveness of the proposed approach...
Locating a radiant source based on time difference of arrival (TDOA) measurements using spatially separated receivers has wide applications. Although extensive research works have been performed on development of TDOA localization solution, limited attention has been paid to sensor array geometry design. However, the sensor array geometry has a significant influence on the localization accuracy. Therefore,...
As the demand and deployment of renewables get better, there comes a growing interest in improved techniques of forecasting the energy generation from those sources. This paper aims at testing and suggesting techniques for input parameter selection and accuracy enhancement in forecasting power output of a PV system. The PV system under study is an operational system in Goldwind smart microgrid in...
In software projects, there is a data repository which contains the bug reports. These bugs are required to carefully analyse and resolve the problem. Handling these bugs humanly is extremely time consuming process, and it can result the deleying in addressing some important bugs resolutions. To overcome this problem, researchers have introduced many techniques. One of the commonly used algorithm...
Both tracking and robust performance are important issues in control engineering. Tracking performance represents how precise the actuator can follow the reference, while robust performance shows how far the actuator can function properly when plant uncertainty and disturbance appear. This works assess both tracking and robust performance of two popular control algorithms i.e Sliding Mode Control...
With the large-scale photovoltaic power plants and centralized network, more and more new energy grid problem arises. Distributed photovoltaic power plants connected to the grid, and can lead to accidents such as power grid voltage instability occurs at a certain probability. The fundamental reason is the unreliability of distributed photovoltaic power generation. Solar irradiance and ambient temperature...
Quality assurance (QA) is a crucial process to ensure the maximize accuracy of the data delivered to client. Equipped with many moving parts whose relative positions can change over time depending on use, handling frequency and care, the QA is essential for TLS. Furthermore, with rapid and dense three-dimensional (3D) data collection ability, TLS has gain interest for many accurate 3D applications...
Emotional decoding ability has been repetitively shown to be impaired in alcoholic patients. The present study aims to extend previous findings on emotions deficits examining the auditory stimuli recognition ability in alcoholism. Twenty-six alcohol-dependent patients, abstinent from alcohol for at least four weeks, were compared to 26 controls matched for sex, age and socioeconomic level. Subjects...
Text classification is an important step in many data analysis procedures. The demand on text classification algorithm is booming due to the increase of the amount of digital data, especially in the healthcare field. A customizable and accurate algorithm is expected to produce positive impact on the efficiency of many data analysis procedures. In this work, we proposed a novel algorithm for accurately...
A multiplier has a significant impact on the speed and power dissipation of an arithmetic processor. Precise results are not always required in many algorithms, such as those for classification and recognition in data processing. Moreover, many errors do not make an obvious difference in applications such as image processing due to the perceptual limitations of human beings. Error-tolerant algorithms...
The capacitor voltage transformer (CVT) is a potential transformer (PT) composed of capacitive voltage divider and electromagnetic unit. In high voltage classes, the capacitor voltage transformer has the advantage of simpler structure and lower cost in comparison with electromagnetic potential transformer (PT), so potential transformers with voltage class of 220kV and above are CVT basically. Transformer...
Single-ISA heterogeneous multicore processors have gained increasing popularity with the introduction of recent technologies such as ARM big.LITTLE. These processors offer increased energy efficiency through combining low power in-order cores with high performance out-of-order cores. Efficiently exploiting this attractive feature requires careful management so as to meet the demands of targeted applications...
The electrical performance of capacitive voltage transformers (CVT) and thus the accuracy of the device is not only dependent on the transformation ratio of the intermediate inductive transformer but also on the capacitive divider, the compensating coil and the damping devices. All components of the CVT are prone to ageing when they are in operation over a long lifetime, especially under harsh environmental...
A Doppler velocity log measures relative velocity between an instrument and the bottom of a body of water by transmitting acoustic pulses that are scattered off the bottom. The scattered sound is received and the Doppler shift is measured. Like any other sensor, the data quality of a Doppler velocity log can be quantified by a variance and a bias. The goal of this work is to model error sources that...
With the advantage of high dielectric strength and low cost, capacitive voltage transformers (CVTs) have been applied to measure the voltage in power grid widely. Recently, CVTs own the problem of big error, insulation performance degradation and high failure rate due to the complicated environment. Secondary load is an important factor to impact CVT's accuracy by analysis. Consequently, we established...
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