The efficiency of induction motor drives under variable operating conditions can be improved by predicting the optimum flux that guarantees loss minimization. In this research, a loss-minimization scalar controller, based on determining of modulation index of IGBT inverter-based AC-to-AC converter, which corresponds to optimum flux, is proposed. For this purpose, mathematical models for total p...

Intel’s SpeedStep and AMD’s PowerNOW technologies allow the Windows XP operating system to dynamically change the speed of the processor to prolong battery life. In this setting, the operating system must not only have a job selection policy to determine which job to run, but also a speed scaling policy to determine the speed at which the job will be run. We give an online speed scaling algorit...

The project named “the rescue system and key technology of high-speed railway in perilous mountains” primarily focuses on current railway constructions and operations in China. To state the relationship between risk events and risk factors, we classified the risk sources of operating tunnels of high-speed railway in perilous and mountainous area and established a hierarchical assessment system ...

A passive false twist unit (spiral) has been developed to assist with the handling lowstrength slivers on a high speed-spinning machine with a high-speed feed. In the first trial, a falsetwist simulator device was constructed to determine whether the passive false twist unit can be usedon high speed feeding with different can distance from the feeding device. In the second trial, theeffects of ...

In recent years, innovative progress in information and communication technology (ICT) has introduced new sources for traffic data collection analysis. On-board sensors like GPS-GPRS boxes, generally installed insurance purposes, communicate from circulating vehicles to centers. Geographic location, date time, vehicles’ speed direction, are systematically transmitted stored as Historical Car Da...

BACKGROUND AND PURPOSE Older subjects after hip fracture walk more slowly than age-matched peers. The extent to which they walk more slowly is difficult to define because the standard error of the measure (SEM), sensitivity to change, and clinically important change have not been reported for gait speed. The purposes of this study were to quantify the SEM for habitual and fast gait speeds among...

This article presents a novel methodology to predict the optimal adaptive cruise control set speed profile (ACCSSP) by optimizing engine operating conditions (EOC) considering vehicle level vectors (VLV) (body parameter, environment, driver behaviour) as affecting parameters. paper investigates criteria develop predictive model of ACCSSP in real-time. We developed deep learning (DL) using NARX ...

This paper presents an operation of the double start induction machine (DSIM) without current and speed sensors controlled by active disturbance rejection control (ADRC). The machine, sensors, is economic simple method. main advantages this method are reconstruction stator phases rotor using only one DC voltage. very effective. It based on information provided a voltage switching states convert...