This article analyzes the conventional dq -frame model-based deadbeat predictive current control (DBPCC) methods for high-speed permanent magnet synchronous machine (PMSM) drives with low switching-to-fundamental frequency ratios (SFRs). It shows that state-of-the-art compensation schemes of de...

objectives: this paper describes further improvement and preliminarily evaluation of a novel viscoelastic ankle-foot prosthesis prototype. the objective was to control the ankle hysteresis at slow and normal walking speeds. methods: inspired by the ankle biomechanics, in which the hysteresis differs based on the gait speeds, a manually damping control mechanism imbedded in the prosthesis for ad...

THIS STUDY AIMED TO EXAMINE EFFECT OF PHYSICAL EXERCISE ON MOTOR TIMING: personal, maximum and "once per second" tapping. The acute effect was examined by comparing the baseline tapping with that after acute exercise in 9 amateur athletes, 8 elite synchronous swimmers and 9 elite biathletes. Then the baseline tapping was compared among athletes of different sports and professional levels (15 el...

This paper introduces the synchronous micromotor concept and presents new investigations on its application as an integrated driving mechanism in microfluidic systems. A spiral channel viscous micropump and a microstirrer are considered and tested as examples to verify the concept. The fabrication technology of such integrated systems is based on UV depth lithography, electroplating and soft li...

In recent years, Switched Reluctance Machines (SRMs) have attracted increasing interest in Electric Vehicles (EVs) applications due to the fluctuating prices of rare earth magnets (Permenant Magnets - PMs) used Permanent Magnet Synchronous Machines. PMSMs). It is also characterized by a solid and strong construction, addition that it works at high speeds temperatures. However, negatives are lou...

synchronous cancer is referred to two or more histological distinct malignancies diagnosed during the same hospital admission. globally more than 1 million people get colorectal cancer yearly resulting in about 0.5 million deaths. vulvar cancer is the fourth most common gynecologic cancer (following the corpus uterine cancer, cancer of ovary and cervix) and comprises only 4 percent of malignanc...

Conventional intersection management that allows multiple vehicles from one road at a time, e.g., Round-Robin (RR), may constitute bottlenecks in urban traffic management. Consequently, new intelligent (IIM) approaches were proposed to reduce time loss, fuel wastage, and ecological damage. IIM is also suited take advantage of the communication capabilities autonomous are gaining relevance, thou...

To determine the energetic costs of rigid-body, median or paired-fin (MPF) swimming versus undulatory, body-caudal fin (BCF) swimming, we measured oxygen consumption as a function of swimming speed in two MPF swimming specialists, Schlegel's parrotfish and Picasso triggerfish. The parrotfish swam exclusively with the pectoral fins at prolonged swimming speeds up to 3.2 total lengths per second ...

The natural fault-tolerant properties and regular structure of the Lee-Lu-Lee’s array multiplier over GF(2) fields make it very attractive for VLSI implementation. However, the Lee-Lu-Lee’s array multiplier is time-consuming while comparing with other existing array multipliers. Thus, we will present fast array multipliers with multiple speeds as comparing with the Lee-Lu-Lee’s array multiplier.

In a synchronous digital system, the clock signal is used to define a time reference for the movement of data within that system. Because this function is vital to the operation of a synchronous system, much attention has been given to the characteristics of these clock signals and the networks used in their distribution. Clock signals are often regarded as simple control signals; however, thes...