Results 121 to 130 of about 141,179 (273)
, 2018 In this paper, Multirate Partial Differential Equations (MPDEs) are used for the efficient simulation of problems with 2-level pulsed excitations as they often occur in power electronics, e.g., DC-DC switch-mode converters.
Gyselinck, Johan +3 more
core +1 more source
Diet of bird‐like troodontid dinosaurs: synthesis of a contentious clade
Biological Reviews, EarlyView.ABSTRACT Troodontidae is a clade of small‐to medium‐sized maniraptoran theropods that mainly lived in Laurasia (modern Asia, North America and Europe) during the Jurassic and Cretaceous periods and are believed to have had a variety of diets. The uniqueness of troodontid teeth suggests that they diverged from the typical flesh‐based diet of non‐avian ...
Yui Chi Fan +2 more
wiley +1 more source
Time-Domain, Steady-State Torque Calculation of Voltage-Source Pulse-Width-Modulated Inverter Fed Induction Motors [PDF]
Evaluation of torque pulsation associated with the harmonics of pulse width modulated (PWM) inverter-fed drives is important, particularly at low speed.
Hsu, J.S.
core
Robust Control Using a Matrix Converter to Enhance Wind Turbine Systems
Energy Science &Engineering, EarlyView.This study uses a more efficient and effective solution to improve the operational performance of a wind turbine‐based power system. This system uses a doubly fed induction generator and relies on a matrix converter and fractional‐order proportional–integral controller.
Sihem Ghoudelbourk +4 more
wiley +1 more source
Energy Science &Engineering, EarlyView.An adaptive fuzzy controller using an interval type‐3 fuzzy logic system replaces the SMC switching term to mitigate chattering while preserving global stability for islanded inverters. Simulations show lower THD, greater robustness to disturbances and parameter variations, and improved voltage‐tracking accuracy, with applicability to other uncertain ...
Man‐Wen Tian +7 more
wiley +1 more source
Discussion of the technology and research in fuel injectors common rail system [PDF]
, 2017 Common rail is one of the most important components in a diesel and gasoline direct injection system. It features a high-pressure (100 bar) fuel rail feeding solenoid valves, as opposed to a low-pressure fuel pump feeding unit injectors. Third-generation
Ishak, Izuan Amin +5 more
core
A Hybrid EV Charging Architecture Integrating DC Fast Charging and Wireless Power Transfer
Energy Science &Engineering, EarlyView.A hybrid EV charging architecture combining DC fast charging and wireless power transfer is proposed. The system achieves high efficiency, grid compliance, and reliable bidirectional operation, offering a scalable solution that enhances user convenience while paving the way for smarter, future‐ready EV charging infrastructure.
Ali Almaktoof +3 more
wiley +1 more source
Journal of Dental Education, EarlyView.ABSTRACT Introduction Augmented reality (AR) enables interactive learning in real‐world environments. In dental radiography education, AR offers a promising tool to enhance students' clinical skills by allowing them to simulate and practice procedures before engaging with actual patients. Repeated practice in an AR environment can reinforce theoretical
Maitê Michel Piazza Willig +7 more
wiley +1 more source
ANALYSIS OF CONTROL METHODS FOR LED BACKLIGHTING OF DISPLAY DEVICES
Цифровая трансформация, 2018 The analysis of control methods for LED backlighting of display devices is carried out. An analysis of the perception of pulsed light sources by human vision is given.
D. V. Chistobaev, E. A. Krasnobaev
doaj
, 2004 The purpose with the report is to show that it is possible to design a class-D amplifier, using a programmable FPGA mounted on a developing card from Xess and a H-bridge. The FPGA was programmed in VHDL which is the language the software from Xilinx use to implement a logical function into the FPGA The logical function corresponds to a modeling of the ...
Bjärhusen, Jonas, Martinsson, Jan-Olof
openaire +1 more source