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Usually, electrical design engineer must take care about three-phase balancing before sending the final version of the LV electric wiring. The conventional method used to verify this task was just to divide all single-phase electrical-loads between the three phases without focusing the consideration on daily load-flow variation of the electrical-loads. For this, this paper describes a necessary new...
This paper treats with the issue of disturbances, noises, uncertainties and sensor faults estimation for uncertain nonlinear systems whose nonlinearity satisfies the Lipschitz condition. The general idea of this approach is to establish an augmented model by supposing the sensor faults as an auxiliary state. In order to ensure the robustness of the proposed observer and guaranteed the convergence...
Memory error protection is increasingly important as memory density and capacity continue to scale. This paper presents a memory SEP (Selective Memory Protection) design that enables SEP for commodity memory modules, with no change to the modules or devices. Memory error protection is provided through embedded ECC, a recently proposed, energy-efficient ECC memory organization. The memory SEP design...
A number of computer program packages have been developed for the solution of the numerical methods. The main objectives of the paper were: to explore the benefit of computer program packages-that have been developed for the solution of problems based on numerical methods-in solving mathematical models, to solve the fundamental equations Laplace's and Poisson's equations which are known in mathematics...
In recent years the field of haptic and gesture studies is expanding and improvements are being made by developing, testing and refining devices along with software to give a sense of touch or to use gestures to interact and "feel" three dimensional virtual objects. Such technologies have a significant role to play in education. The uses of modern devices based on gesture or haptic technologies...
This article proposes a methodology to measure the dynamic and static complexities in real systems. Using the theory of discrete event systems, it is simulated the Dining Chinese Philosophers problem and then the complexity of the system is measured based on the simulated data. The obtained results relate to the static complexity based on the configuration of the system, without using a simulator...
Workflows offer a great potential for enacting co-related jobs in an automated manner. This is especially desirable when workflows are large or there is a desire to run a workflow multiple times. Much research has been conducted in reducing the make span of running workflows and maximising the utilisation of the resources they run on, with some existing research investigates how to reduce the energy...
This paper identifies challenges presented in unified co-simulation of power and communication network. There is no main stream freely available simulator which combines both power and network capabilities. First, review of existing simulators of smart grid is presented. Then, co-simulator scheme is proposed. Finally, a basic prototype of co-simulation based on open-source power and communication...
Advancement in evolution of Internet technologies like 3G, 4G, and 5G, there is a need of good quality of service (QoS) for such wireless networks. Faster responses are required for various queries raised by mobile terminals (MTs) from any mobile computing environment. There has been many research works proposed in the past to address the QoS issue by using an Invalidation Report (IR)-based cache...
This work presents development of a prototype for the automatic engraving machine. The proposed system controlled using computer, by setting drawing for engrave. Constructed prototype consists of XYZ coordinates table (working area), where XY for position in the engraving area and Z axis for establish little driller. Arduino board has been chosen as a controller. Movements of the machine are generated...
This paper is concerned with congestion control for dynamic TCP/AQM networks with random delays. A robust congestion control algorithm is presented based on the H∞ approach, and the system performance is analyzed via linear matrix inequalities (LMIs). Simulation results illustrate the effectiveness of the proposed algorithm.
Ad-hoc networks are promising complements for the infrastructure based network under disastrous scenarios. However, due to the heterogeneous surrounding environment of each user, the channel availability of each user may be quite different. Cognitive radio emerges as a promising technology to enable two users to communicate under different channel availability, by opportunistically accessing available...
This paper presents an average-value model of a line commutated converter-based HVDC system using dynamic phasors. The model represents the low-frequency dynamics of the converter and its ac and dc systems, and has lower computational requirements than a conventional electromagnetic transient (EMT) switching model. The developed dynamic-phasor model is verified against an EMT model of the CIGRE HVDC...
This paper introduces an enhanced equivalent model of the half-bridge symmetrical monopole Modular Multilevel Converter (MMC) topology for the analyses of the electromagnetic transients. As compared with the existing MMC models, the proposed model reduces the simulation computational time without compromising accuracy, and contrary to the existing models, it provides accurate representation of the...
Risk management is an important area in software engineering. An effective risk management process positively influences project success. ARMI is a physical card game which simulates risk management in software engineering. During the simulation, participants follow principles of risk management and aim to complete the cycles while economizing their expenses. ARMI 2.0 aims to improve shortcomings...
In this paper, the antenna location in distributed antenna system with hybrid user distribution is discussed. Instead of maximizing the cell ergodic rate, we focus on minimizing the expectation of squared distance applying selective transmission schemes. Using the weighted expectation of squared distance criterion (WESDC), the optimization problem of antenna location is proved to be convex when two...
Brain computer interface based functional electrical stimulation is a comparatively newer technique which is being used for rehabilitative and assistive technologies these days. This process needs precise calculations of relative factors and repetitive testing of those factors to provide approximate efficiency and stability. It is required to perform modelling and simulation of such systems in order...
The Pulserad electron beam accelerator at the University of New Mexico (UNM) was refurbished and reconfigured to provide a voltage pulse with a very fast risetime, inspired by simulation results that indicated that the magnetron output characteristic was very sensitive to the voltage risetime. The modified Pulserad has a 2 ns risetime after which it maintains a flat-top for 30 ns and is capable of...
This paper presents the development of two applications elaborated by the Laboratory for Roman Provincial Archaeology (LARP-USP) named DOMUS R.A. and DOMUS REDUX: two mobile applications that allow the public to experience an ancient Roman house (domes, in Latin) in both Augmented and Virtual Realities environments. Starting from the discussion of our previous application (DOMUS, released in 2013),...
Performance of the algorithms which process intracardiac electrograms (IEGMs) highly depends on the accuracy of estimating the times that electrical waves pass the area under the electrodes. Estimating these activation times (ATs) from IEGMs during atrial fibrillation (AF) is extremely challenging as electrical activities of atria are very complex, non-stationary, and irregular. In this paper, we...
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