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.
This paper presents a numerically optimized linear‐quadratic‐regulator–based tuning mechanism for a ubiquitous proportional‐integral‐derivative controller to improve the output‐voltage regulation capability of a direct‐current (DC)‐DC buck converter. The linear‐quadratic‐regulator minimizes the quadratic cost of variations in the control signal and error‐dynamics of output‐voltage to provide a trivial...
Accurate design of miniaturized antenna is constrained by the limited well‐formulated exact mathematical expressions. Demands for smart devices with features like portability, implantability, and configurability have further placed bigger challenges in front of the antenna design engineers or scientists. As a part of the search for various solutions, many innovative approaches have been proposed by...
The continuous development of complementary metal–oxide–semiconductor (CMOS) technology makes it difficult to design high speed and low power amplifiers. One of the appropriate alternatives is comparator‐based circuits. In this paper, a modified structure for comparator‐based switched‐capacitor integrator is presented. This structure increases the clock frequency considerably by using a nonlinear...
A novel large‐signal model construction technique is proposed in this paper. High‐order current and charge sources with additional dimensions derived from pulsed small‐signal measurement data are used to describe the dispersive behaviour of FETs. Added dimensions can effectively account for trapping‐induced dispersions. Instead of look‐up tables, empirical functions and artificial neural network are...
Targeting several destinations on the same trip is commonly seen over the downtown areas. Several drivers leave their home or work everyday targeting multiple end‐destinations for shopping or entertaining purposes. The sequence of visiting destinations can be selected randomly by the drivers, especially if they are less familiar with the area of interest or with multi‐destinations trips. However,...
The main objective of this paper is to present a reproducing kernel Hilbert space method for computing solutions of nonlinear third‐order ordinary differential equations under multipoint boundary conditions. Some other aspects of the reproducing kernel Hilbert space method, such as convergence analysis and error estimate, are also discussed. The proposed method is a well‐performance technique for...
Silicon‐on‐insulator junctionless transistor (SOI‐JLT) is introduced as an efficient device for nanoscale destinations. Moreover, critical lattice temperature and high leakage current are taken into account as the fundamental challenges can limit the use of the SOI‐JLTs. This paper aims to modify a conventional junctionless in order to improve the electrical and thermal performance. A new window filled...
A systematic computer‐aided design of low‐sidelobe linear microstrip antenna arrays is proposed. It starts from identifying the corporate feed architecture which is optimal for a given excitation taper under constrains imposed on the power splits within the feed. The novelty of the approach includes utilization of a numerically efficient simulation‐based kriging model of unequal split microstrip junctions...
A model for a dual‐material‐gate AlGaN/GaN high‐electron‐mobility transistor has been developed by a finite difference method. The method permits the modeling of dual material as two individual single materials by splitting the 2‐D Poisson equation into two separate 1‐D equations. The unified model of two separate 1‐D equations is formed by applying the boundary conditions. The proposed model estimates...
Quantum key distribution is the process of using quantum communication to establish a shared key between two parties. It has been demonstrated the unconditional security and effective communication of quantum communication system can be guaranteed by an excellent Gaussian random number (GRN) generator with high speed and an extended random period. In this paper, we propose to construct the Gaussian...
This paper proposes a compounded encoding and decoding algorithm based on the information‐grayscale matrix. Generally, it is very difficult to track the original information in the circulation of commodity. This algorithm is aimed to be applied to product tracing, especially fast‐moving consumer goods (FMCG). According to the traceability requirements of product information, we construct the structure...
The climate in Algeria can be considered semiarid in most areas. The water demand is expected to increase because of population growth in the coming years. Water supply is always a great concern for the populations in the landlocked regions. Pumping water using the solar photovoltaic energy is a well‐suited solution where the traditional electricity grid is absent. Indeed, the majority of these regions...
This paper introduces a novel approach to design fault detection and diagnosis systems by using computational intelligence techniques for industrial plants and processes. According to the increasing development of machine learning algorithms, selecting an appropriate algorithm for identifying and estimating the size of faults in dynamic systems can turn in to a challenge. A notable point in this regard...
The semiconductor industry has implemented the technique of wrapping the gate electrode on different sides of channel to mitigate the degrading electrostatic effects in nanometer transistor. Intel adopted trigate architecture, wherein the channel is surrounded by gate electrode on three sides to improve the gate control over the channel. In order to further enhance the performance and diminish the...
This paper derives exactly the stability condition of the dispersive hybrid implicit‐explicit finite‐difference time‐domain (HIE‐FDTD) method used for the simulations of the graphene‐based devices. Combining with the Routh‐Hurwitz criterion, an analytical closed‐form stability expression is obtained. The result shows that the maximum time increment of the dispersive HIE‐FDTD method is only associated...
Fatigue affects the durability of radio frequency microelectromechanical systems (RF MEMS) devices. It is common to rely on actuation voltage cycles or resonant frequencies shift to estimate the fatigue life of MEMS devices. Actuation of moving mechanical parts within the device causes transient stresses because of transient vibration. Such stresses and stress cycles are difficult to account for when...
In the present paper, a mathematical model suitable for capacitive accelerometer is developed by applying the fundamental principle of dynamics and validated by simulation and experiment test. This model aims to visualize the capacitance variation of the accelerometer as a function of relative movement frequency. The main motivation key role of this paper is to propose a capacitive accelerometer with...
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.