The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The physical-layer network coding (PNC) has become a hot research topic, since it can potentially reduce the transmission time slots and increase the channel capacity. However, current studies are mainly concentrated on three nodes (two users and one relay) network. This paper considers a specific multiuser network that includes M (M>2) users with one relay, and illustrates the transmission scheme...
This paper presents a dynamic model of a Linear Fresnel Reflector (LFR) used to describe the evolution of the output steam enthalpy and the control strategy that was developed to allow coupling with Combined Cycle Power Plants (CCPP) while respecting operational constraints. The modeling approach uses the principle of a moving boundary formulation of a two-phase flow region and results in a nonlinear...
Two-body unmanned surface vehicle is a new marine environment monitoring platform, with higher operating efficiency and wider applicability. In order to understand the movement features of this kind of ship, and to enhance its working capabilities and control precision, its dynamics model basing on six degrees of freedom equations is developed in this paper. The simulation results using this model...
Issues of vibrations in marine applications have become a major concern for many years. As a result, this paper investigates the flatness control of fitted equipment on marine vessels, which are subjected to disturbances from random sea wave. A back stepping control strategy is proposed to reduce the effect of disturbance simulated as random sea waves on the active marine suspension model. The control...
In this paper, a method for calibrating and compensating the errors of magnetometer is proposed, in which the error sources consist of constant bias, scale factors, nonorthogonality, hard iron effects and soft iron effects. Related estimation algorithms were proposed, calibration procedure was presented. Two dimensional and three dimensional cases are considered, the efficiency of the proposed algorithms...
Crane is one of the indispensable tools in the engineering application, and it is one of the multi-axial drag lifting work systems. In this paper, the idea of distributed physical net modeling is adopted to the modeling and simulation of simplified multi-axial drag lifting work system which is based on DC motor, a way of applying in the practical application is put forward. After building a model...
In Content-centric Networking (CCN), in-network caching can enhance content delivery at a global scale without requiring special infrastructure. In this paper, we propose a lifetime-based greedy caching approach (LBGC) which involves both caching decision and cache replacement. Contents are preferred to be stored in nodes with high betweenness centrality, and only expired cache items can be replaced...
In this paper, we propose and investigate a simple, low-complexity and deterministic cooperative protocol that exploits Network Coding (NC) within a wireless network. The scenario under investigation is for Long Term Evaluation Advanced (LTE-A) downlink communication system network, where a source of data sends k stream of packets to a Pico relay which forwards them to two Femto relays via fiber optic...
In this paper, a new expression for oscillating amplitude of CMOS LC differential oscillator is derived. Contrary to the conventional expression which was derived by assuming that the current from sourced coupled pair flowing though LC tank is a square wave, the proposed expression is derived by assuming that such current is a clipped sinusoidal, which is more in line with the real situation. By comparing...
This paper deals with the theory of modeling of the motion of manipulators, using Denavit-Hartenberg parameters. These parameters are currently used as the basis for modeling methods of motion manipulators. Modeling methods described in this paper can be directly used in the simulations to eliminating conflict states of manipulator.
In the motor drives working group of Cooperative Study Group on Applications of Power Electronics Simulations of IEEJ, standard models for simulation of motor drive systems are discussed. This paper provides a standard motor model of induction motor drive systems with parameters. Parameters of more than 30 induction motors have been gathered, and tendency of the parameters have been also investigated...
There are several neuropsychological theories about the pathology of schizophrenia, one of which is the glutamate theory. This theory suggests that hypofunction of NMDA receptors, which may be caused by dysfunction or dysregulation of NMDA receptors, leads to symptoms of schizophrenia. On the other hand, inactivated astrocyte and decreased levels of D-Serine concentration have also been considered...
In this paper, we propose binary particle swarm optimization (BPSO) algorithm for distributed node localization in wireless sensor networks (WSNs). Each unknown node performs localization under the measurement of distances from three or more neighboring anchors. The node that gets localized during iteration will be used as a reference for remaining nodes. A comparison of the performances of PSO, basic...
The increasingly serious energy crisis and environmental pollution problems promote the large-scale application of microgrids (MGs) and electric vehicles (EVs). As the main carrier of MGs and EVs, distribution network is gradually presenting multi-source and active characteristics. A multi-level service restoration strategy of distribution network with MGs and EVs is proposed in this paper, which...
The penetration of renewable energy technologies into energy markets is on the increase due to significant drops in their capital cost, increase in their efficiency and improvement in storage system and power electronic interface. Most universities around the globe offer, nowadays, renewable energy courses within the electrical and mechanical engineering curricula to support the increasing demand...
A method for Unmanned Surface Vehicle (USV) to follow linear path is proposed, considering both position error and course error. Based on dynamic model of the USV which is thrust with twin fixed propellers driven by DC electric motors, Cross Track Error and Line of Sight are combined into DIDO controller based on PD. The simulation experiment is conducted and compared with the method using Cross Track...
A 3-D Marine Environmental Committee (MEC) model was conducted to describe the specific circulation patterns of hydrodynamics of water quality and ecosystems driven by climate change forcing in Kamaishi Bay at Miyagi Prefecture in the Great East Japan. The major concern of this study is the diffusion of pollutants caused by 2011 Earthquake and Tsunami disaster impacts on marine ecosystem. In this...
Nowadays, Radio Frequency Identification systems play an important role in our daily life. In this paper, a developed software simulation modeling magnetic inductively coupled RFID systems shall be presented. The simulation model aims to facilitate the studying of RFID systems operating using inductive coupling by linking the main parameters of RFID tag, RFID reader and their antennas to operating...
In recent years, design and service evolution in electric distribution networks are mainly guided by the increasing in the customer consumption and the emergence of new sources and loads such as renewable energy, electric and hybrids vehicles. The lack of control over these new constraints in the future may lead to technical and financial problems. Therefore, establishing a supervisory strategy offering...
Integration and application of Solar Panels as clean energy resources in electricity production and distribution is gaining wide spread implementation in market, to implement these resources successfully and to operate them in efficient way. It is so important to model solar cell and analyze its behavior and dynamics in proper method. In this paper, Photovoltaic module is analyzed, modeled and simulated...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.