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This paper presents some existence conditions of descriptor symmetric controller for descriptor linear system with the plant itself being symmetric or control specifications being symmetric. It's different from previous papers which require the plant and control specifications are both symmetry, especially by relaxing the symmetry constraint of the control specification. And then these conditions...
Based on the constitutive equations of piezoelectric materials, the dynamic model of the piezoelectric stack actuators is derived. Subsequently, experimental setup for the dynamic characteristics measurement is established. Parameters such as voltage-displacement coefficient, stiffness and damping constant are identified from the experimental results by the principle of piezoelectric effect and classic...
A novel power clamp circuit which has a good immunity to mis-triggering is proposed in this paper. The proposed circuit has a separate detection component and delay component, so that it can distinguish the ESD event and fast-power-on condition, while it has enough turn-on time during an ESD event. Simulation results verify that the proposed circuit has enhanced ability to discharge static charges...
In this paper, we use the NCTUns network simulator to study intelligent traffic signal control algorithms. NCTUns is both a microscopic traffic simulator and a network simulator. We imported the real-life map of a district of the Taipei city into NCTUns to let simulated vehicles move on the roads of the imported map. Then, we used a new and unique feature of NCTUns - each simulated vehicle moves towards...
As a important mechanical parameters for the vacuum circuit breaker, the contact bounce affects the electrical life of arc chamber. First, the mathematical model of contact bounce are established, the characteristics curve of contact bounce is obtained according to the mathematic model by using MATLAB. Secondly, the harm of contact bounce and the influence factors of contact bounce are analyzed. Finally,...
The impact of the iPad has been radically big in the world. There are restaurants having provided services by substituting Apple's touch-screen iPad for their printed menus recently. Thus, the objective of this study was to propose and test a research model involving both cognitive and affective components that can influence potential restaurant visitors' behavioral intention to visit by way of influencing...
This study intends to validate the DeLone and McLean's IS success model in the context of hotels from the perspective of employees. The model consists of six constructs: information quality, system quality, service quality, systems use, user satisfaction, and net benefits. Structural equation modeling techniques are applied to data collected by the questionnaires from 303 employees of the hotels in...
The process of surrounding rock crushing and water rushing under excavating or mining contains four phase, Darcy laminar flow in the aquifer, High velocity(relativity) Non-Darcy flow in transitional zone and fracture zone, and the Navier-Stokes turbulence in drift. In this paper, a model was suggested to simulate the process of fluid flows surround the fractured rock mass, in which Darcy flow and...
This paper extends the nonlinear ISS small-gain theorem to a large-scale time delay system composed of three or more subsystems. En route to proving this small-gain theorem for systems of differential equations with delays, a small-gain theorem for operators is examined. The result developed for operators allows applications to a wide class of systems, including state space systems with delays.
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