نتایج جستجو برای: energy dissipation systems

تعداد نتایج: 1774045  

Journal: :مهندسی سازه 0
میرحسن موسوی اصل

buildings with wall or frame-wall systems are more effective against earthquake forces and sustain less damage than buildings which their lateral resistance is solely depends on frames. four reinforced concrete (rc) structural wall specimens were subjected to cyclic loading using finite elements method with abaqus software in order to study influence of diagonal web reinforcement. the research ...

A. Formisano G. De Matteis H. Monsef Ahmad, M. R. Sheidaii S. Tariverdilo

Thin perforated Steel Plate Shear (SPS) Walls are among the most common types of energy dissipating systems. The applied holes reduce the shear strength of the plate and allow to decrease the profile size of the members at the boundary of the panel when these systems are used in the typical design of structures. On the other hand, the different fracture locations of these panels are visible whe...

2009
Fabrice Collard Fabrice Ardhuin Bertrand Chapron

Using global satellite Synthetic Aperture Radar (SAR) observations, swell systems are confirmed to travel over very large distances across ocean basins. Satellite observations can provide a global view of swell systems when using a specific ”wave mode” sampling. The data are gathered globally and systematically, but the SAR-derived peak wavelength and directional parameters are restricted to th...

1996
Sandeep Gupta Suresh M. Joshi Peiman G. Maghami Daniel P. Giesy Sean P. Kenny George A. Tan

Robust stability conditions obtained through generalization of the notion of energy dissipation in physical systems are discussed in this report. Linear time-invariant (LTI) systems which dissipate energy corresponding to quadratic power functions are characterized in the time-domain and the frequency-domain, in terms of linear matrix inequalities (LMIs) and algebraic Riccati equations (AREs). ...

Journal: :IEEE Trans. Automat. Contr. 2000
Bernhard Maschke Romeo Ortega Arjan van der Schaft

In this paper, we propose a constructive procedure to modify the Hamiltonian function of forced Hamiltonian systems with dissipation in order to generate Lyapunov functions for nonzero equilibria. A key step in the procedure, which is motivated from energy-balance considerations standard in network modeling of physical systems, is to embed the system into a larger Hamiltonian system for which a...

Journal: :Annals of botany 2005
Li-Song Chen Yi-Ping Qi Xing-Hui Liu

BACKGROUND AND AIMS Under high photon flux, excitation energy may be in excess in aluminum (Al)-treated leaves, which use a smaller fraction of the absorbed light in electron transport due to decreased CO2 assimilation compared with normal leaves. The objectives of this study were to test the hypothesis that the antioxidant systems are up-regulated in Al-treated citrus leaves and correlate with...

2014
Andreas Daub Marina Böhm Stefanie Delueg Markus Mühlmann Gerhard Schneider Jochen Büchs

BACKGROUND Turbulence intensity, or hydromechanical stress, is a parameter that influences a broad range of processes in the fields of chemical engineering and biotechnology. Fermentation processes are often characterized by high agitation and aeration intensity resulting in high gas void fractions of up to 20% in large scale reactors. Very little experimental data on hydromechanical stress for...

2008
Diego Pavón Luis P. Chimento

Most of the models leading to a current state of cosmic accelerated expansion fail to address the coincidence problem, i.e., that the dark energy density and the energy density of the matter fluid are of the same order precisely today. We show that a way to drive late acceleration and simultaneously solve the aforesaid problem is assuming the matter fluid dissipative [1]. 1 General setting The ...

2014
Shinan Wang

SOFTWARE POWER ANALYSIS AND OPTIMIZATION FOR POWER-AWAREMULTICORE SYSTEMSbySHINANWANGMay 2014 Advisor: Dr. Weisong ShiMajor: Computer ScienceDegree: Doctor of Philosophy Among all the factors in sustainable computing, power dissipation and energy consump-tion, arguably speaking, are fundamental aspects of modern computer systems. Different fromperformance metric,...

2000
Maciej M. Duras

1 Abstract A complex quantum system with energy dissipation is considered. The quantum Hamilto-nians H belong the complex Ginibre ensemble. The complex-valued eigenenergies Z i are random variables. The second differences ∆ 1 Z i are also complex-valued random variables. The second differences have their real and imaginary parts and also radii (moduli) and main arguments (angles). For N=3 dimen...

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