This paper presents the control system development of the Rutgers Ankle rehabilitation device. The “Rutgers Ankle” is a haptic interface with a Stewart platform structure driven by six double-acting pneumatic actuators. Each cylinder input is controlled by one set of on/off solenoid valves. For overall system control, an interrupt handler loop is designed based on hardware interrupts. For preci...

a new design for replacing a missing anterior tooth is described. in this article, a lingually fixed partial denture, its advantages, disadvantages, indication and contraindications have been explained. the ability of this design to replace a single missing central or lateral incisor is discussed.

Purpose: The purpose of the present work is to test experimentally equalization method for outputs multi-cylinder diesel engine cylinders basing on energy minimization amplitude spectrum low-frequency band crankshaft instantaneous angular speed signal. Methods: uses methods digital signal processing, spectral analysis, differential calculus, multidimensional undifferentiated function optimizati...

<p class="Abstract">The conventional three-phase alternating current (AC) to direct (DC) converter can be modified using two isolated-gate bipolar transistor (IGBT) as by-pass switches connected tapping points on the secondary side of transformer. This scheme yields a reduction in both harmonic contents and reactive volt-ampere absorption. possibly eliminates need for an on-load tap-chang...

den Anspruch, genau die gleichen Head/ModifierRelationen automatisch zu finden, wie durch menschliche Intuition. Auf die RelationenTypes bezogen müßte die Fehlerrate wesentlich kleiner sein, wenn nur die häufigen Head/Modifier-Relationen berücksichtigt werden. Die Behandlung der Konjunktionsrelationen (s. Abb. 3) wurden ebenfalls zum Zweck der Phrasennormalisierung entwickelt. Bei der Extraktio...

A new kind of pneumatic climbing robot is presented to meet the requirements of glass-wall cleaning for high-rise buildings, which is totally actuated by pneumatic cylinders and attached to the glass wall with vacuum suckers. Using the pneumatic actuators the climbing robot can be made lightweight and dexterous. At the same time the movement driven by pneumatic actuators has the characteristic ...

As far as we know, there is no branch of industry where two-phase systems are not used. This the chemical, thermal, physical and finally oil industry. The process studying a hydromechanics reflects great scientific research works in recent times In work under review, main characteristics water-oil mixture were studied hydromechanical indicators this system determined. results conducted research...

The performance of internal combustion engines should be improved depending on some technological requirements and rapid increase in the fuel expenses. On the other hand, the improvements in engine materials are forced by using alternative fuels and environmental requirements. Therefore, the performances of engine materials become increasingly important. The purpose of PZT loaded cyanate modifi...

During the operation of a refrigeration compressor, electric power is transported from electric source to the refrigerant. Since there is a large amount of power required for the operation, it is necessary to save energy through the performance improvement. For this purpose, mathematical models consisting of nonlinear ordinary differential and algebraic equations are developed and applied for t...

In this work, two known probability distributions based on the replacement model, namely, the Maxwell-Boltzmann and Bose-Einstein ones, are examined. Each of these distributions is assigned to a specific case of query processing, which is known in the literature as batching on primary key values or secondary key retrieval, respectively. These distributions are applied in evaluating the expected...