نتایج جستجو برای: wave based control

تعداد نتایج: 4124569  

2016
Liguo Wang Jens Engström Mats Leijon Jan Isberg

Abstract: In this paper, a generic coordinated control method for wave energy converters is proposed, and the constraints on motion amplitudes and the hydrodynamic interaction between converters are considered. The objective of the control problem is to maximize the energy converted from ocean waves, and this is achieved by coordinating the power take-off (PTO) damping of each wave energy conve...

Journal: مهندسی دریا 2006
Ali Oveisy, Mohsen Soltanpour,

The present paper offers a numerical model which can be applied for the simulation of wave height distribution on a 2-D horizontal soft mud layer. The model is based on mild slope equations and it includes combined wave refraction, diffraction, reflection and breaking. The high energy dissipation of wave height due to the presence of fluid mud layer has also been simulated. Wave height attenuat...

Journal: :Applied Mathematics and Computation 2006
Wei Zhang Li-Qun Chen

Active vibration control is investigated for axially moving strings with a tersioner. The tensioner is used as an actuator. The active control law is proposed from the view of the traveling wave propagation. Transverse response of both the uncontrolled and the controlled systems is derived in the frequency domain. The designed controller is numerically tested for the string under impulse and ha...

2011
Kenji Nagase Yasuyuki Takeuchi

This paper is concerned with a new feedback control design methodology for vibration control of flexible structures by the wave control. In the wave control, controllers are usually designed to minimize the reflection coefficient based on the wave analysis. However, because the method utilizes the wave analysis directly, it has been mainly applied to simple uniform structures, and control desig...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان 1389

implicit and unobserved errors and vulnerabilities issues usually arise in cryptographic protocols and especially in authentication protocols. this may enable an attacker to make serious damages to the desired system, such as having the access to or changing secret documents, interfering in bank transactions, having access to users’ accounts, or may be having the control all over the syste...

Journal: :journal of electrical and computer engineering innovations 2013
t. g. arora m. v. aware d. r. tutakne

pulse-width modulated (pwm) adjustable frequency drives (afds) are extensively used in industries for control of induction motors. it has led to significant advantages in terms of the performance, size, and efficiency but the output voltage waveform no longer remains sinusoidal. hence, overshoots, high rate of rise, harmonics and transients are observed in the voltage wave. they increase voltag...

Journal: :the journal of tehran university heart center 0
mohammad assadian rad heshmat cardiovascular medical center, guilan university of medical sciences, rasht, iran. zahra emkanjoo heshmat cardiovascular medical center, guilan university of medical sciences, rasht, iran. hassan moladoust heshmat cardiovascular medical center, guilan university of medical sciences, rasht, iran.

t-wave oversensing occurs when the counter starts giving dual beeps for every cardiac cycle instead of one. this usually happens when the monitoring lead displays a tall t wave, which is also sharp. r wave sensing algorithms of the devices do not sense t wave because the slow rate of the t wave is much less than that of the r wave. but the slow rate of t waves may change with time and also beca...

2006
C. Pajares

This is an attempt to summarize the talks given at the session on Deconfinement in the Conference “Quark Confinement and hadron spectrum”. This talk covers the following topics: Elliptic flow and evidence of nearly perfect fluid of the created matter; High Transverse momentum production, propagation of jets and energy loss; Heavy quarqonia in dense QCD matter; Phase transition, Multiplicity flu...

2006
Changsu Suh Deepesh Man Shrestha Young-Bae Ko

Abstract. In this paper, we propose a new medium access control protocol for wireless sensor networks, named LE-MAC (Latency and Energy aware MAC) that aims to minimize data delivery latency as well as energy consumption. To achieve both goals, we exploit a physical carrier sensing feature in CSMA/CA and combine it with a cross-layer technique. When nodes that are in routing path between source...

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