This paper proposes a real-time implementation of a networked predictive controller designed to damp driveline oscillations, which is crucial in improving drivability and passenger comfort, while compensating the time-varying delays that appear due to sending the control commands and the measurements from the sensors through Controller Area Network (CAN). Firstly, the designed real-time structu...

Effects of dust-neutral collision and densities of positive ions and electrons have been investigated for the propagation of dust-acoustic waves ~DAWs! in magnetized dusty plasmas. It is found that, due to collisions, the DAWs damp waves and the damping rate of the waves depends mainly on the collision frequency ~i.e., if there are no collisions the waves do not damp waves!. The collisions are ...

Weakly damped power swings are one of the main problems endangering secure operation of power systems. This paper presents two methods , based on the use of nonlinear system model , to improve damping of power swings using UPFC. A statevariable control strategy has been derived using local available signals of real and reactive power. The results of simulation tests of two control methods, unde...

Nine types of biocontaminants in damp indoor environments from microbial growth are discussed: (1) indicator molds; (2) Gram negative and positive bacteria; (3) microbial particulates; (4) mycotoxins; (5) volatile organic compounds, both microbial (MVOCs) and non-microbial (VOCs); (6) proteins; (7) galactomannans; (8) 1-3-b-Dglucans (glucans) and (9) lipopolysaccharides LPS (endotoxins). When m...

A hybrid technique is presented that simultaneously uses both electromagnetic and acoustic waves in a synergistic manner to detect buried land mines. The system consists of an electromagnetic radar and an acoustic source. The acoustic source causes both the mine and the surface of the earth to be displaced. The electromagnetic radar is used to detect these displacements and, thus, the mine. To ...

This experimental study demonstrates the efficiency of simple control strategies to damp a 3-stage tensegrity tower structure. The tower is mounted on a moving support which is excited with a limited bandwidth random signal (filtered white noise) by a shaker. Our goal is to minimize the transmissibility between base acceleration and top plate acceleration using piezoelectric displacement actuat...

–Low frequency electromechanical oscillations are inevitable characteristics of power systems and they greatly affect the transmission line transfer capability and power system stability. Traditionally, power system stabilizers (PSS) are being used to damp these oscillations. Unified Power Flow Controller (UPFC) is a well-known FACTS device that can control power flow in transmission lines. It ...

The percolation probability for directed, compact percolation near a damp wall, which interpolates between the previously examined cases, is derived exactly. We find that the critical exponent β = 2 in common with the dry wall, rather than the value previously found in the wet wall and bulk cases. The solution is found via a mapping to a particular model of directed walks. We evaluate the exact...

We investigate the kinetics of constant-kernel aggregation which is augmented by ~a! evaporation of monomers from clusters, which is termed aggregation in a ‘‘dry’’ environment, and ~b! continuous cluster growth or condensation, termed aggregation in a ‘‘damp’’ environment. The rate equations for these two processes are analyzed using both exact and asymptotic methods. In dry aggregation, mass ...

Earth-based building materials have been used since antiquity for the construction of various structures. The main drawback these is their vulnerability to direct contact with liquid water, such as rising damp. To protect earthen structures from damp, a stone foundation was used, resulting in composite masonry. In current study, an experimental investigation capillary absorption non-stabilized ...