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In recent, some researches are being developed in medical applications to improve the accuracy of the pose and the joint of the patient. One of the famous existed methods for measuring the matching rate of the pose is by using the rotation angle of the joint. However, there is a problem that the rotational direction is missing when we only consider the rotation angle of the joint. Thus, we propose...
Due to the rapid advances of integrated circuit technology, the size of power distribution network (power grid) is becoming larger and larger. There are usually multi-million nodes on a power grid. Analyzing these huge power grids has become very expensive in terms of both time and memory. This paper presents an efficient parallel implementation of the Additive Schwarz Method (ASM) for IR-drop analysis...
Electronic vehicle guidance systems have gained much popularity over the last years. The massive use of inexpensive global positioning system receivers, combined with the rapidly increasing availability of wireless communication infrastructure, suggests that large amounts of data combining both modalities will be available in a near future. The approach presented here draws on machine learning techniques...
In order to assess the reliable life of the DC power supply of the coal mining monitoring system, the accelerated life tests under constant stress were presented based on the exponential distribution. Through a comparative analysis of lots of factors, the temperature was chosen as the constant accelerated stress parameter. With regard to the data statistical analysis, the type-I censoring sample method...
For achieving cooperation, one agent must consider the joint action in multi-agent systems because the action result of a agent often depends on the other agent' behaviors. However, joint action reinforcement learning always suffers the slow convergence rate because of the enormous learning space produced by joint action and information sharing ability. In this paper, a Speedup Convergent Reinforcement...
Aiming at the problem of the drill string vertical vibration on rotary drilling, the dynamic model of the drill string vertical vibration which caused by the interaction of drill bit and rock and elastic deformation of drill string is established by the theory of flexibility pole and cell method. The finite difference method is used to solve the drill string vertical vibration model under the given...
Hula-hoop is not only one of familiar toys but also interesting system as a nonlinear control system. While humans play hula-hoop, hoop does not slide on the body but rotates around it. Though it is controlled only by the motion of the body, humans can realize enduring rotary motion without dropping hoop. The purpose of this paper is modeling and control of hula-hoop system as a nonlinear control...
In this paper we present a new method to analyze quasi-periodic signals. This method consists of modeling these signals using a Fuzzy Finite State Machine as a particular case of a Linguistic Fuzzy Model of a dynamical system. This model defines states and transitions using a priori knowledge of the signal we want to analyze. The model is represented using fuzzy rules that make it easily comprehensible...
The maneuvering penetration guidance law in the middle-course flight of the strategic missile is developed by simulation method in this paper. A maneuvering penetration scheme based on detect system is presented and researched. Based on calculation to maneuvering penetration time with genetic algorithm, a new type of optimal penetration guidance law is presented. The optimal, earliest and latest maneuvering...
Honeycomb paperboard has developed rapidly because of its hexagon core structure in casing area. One of the reasons is that honeycomb paper can prevent or lighten the vibration and concussion in the process of transportation. Existent anomalistic hexagon structure of the honeycomb paperboard has an impact on its antivibration characteristics. The antivibration effect of different anomalistic honeycomb...
In this study, an optimization algorithm is proposed for asymmetric s-shape acceleration/deceleration to achieve better contour accuracy for biaxial systems. The optimization is based on the method of genetic algorithm incorporated with the constraints made by the motion system. Numerical simulations of an XY table driven by linear motors following a simple cornering path verify the proposed algorithm.
This paper is about mechanical vibration absorption in a cantilever beam. This is accomplished by an active control scheme. The experimental set up consists of an aluminum cantilever beam clamped to an electrodynamical shaker. In that the main actuator is a piezoelectric patch and the feedback signal is obtained with a small piezoelectric accelerometer. For control purposes the closed loop is done...
This paper describes a systematic method for designing the robust controller for the inverted pendulum which is a nonlinear and single-input double-output system. The system is proved to work properly through simulation and experimentation. It controlled both a car and vertical bar for control inverted pendulum in gravity field. In particular, the system is controlled by PSID. Especially, the result...
This paper presents a novel approach to obtain reliable and robust time-to-contact estimates from a monocular moving camera observing various obstacles. The algorithm utilizes interest points to measure the relative scale change of an obstacle and applies robust estimation techniques to combine the different measurements into one of three possible motion models. These include a model with constant...
This paper presents a method for determining impact forces associated with an abrupt velocity change when a free-flying body comes into contact with another body. Hard impact is considered where deformation of the impacting surfaces is negligible. The proposed approach uses a discrete algebraic model of impact in conjunction with moment and tangential coefficients of restitution (CORs) to develop...
We introduce an optimization framework called prioritized optimization control, in which a nested sequence of objectives are optimized so as not to conflict with higher-priority objectives. We focus on the case of quadratic objectives and derive an efficient recursive solver for this case. We show how task-space control can be formulated in this framework, and demonstrate the technique on three sample...
A nonlinear reference shaping method for manipulators which are operated in living environments is proposed. It generates an intermediate reference position, and it is combined with a control based on the virtual spring-damper hypothesis proposed by Arimoto et al. The initial acceleration is moderated by an intermediate reference position inserted between the original target and the current position...
This paper presents a novel approach to on-line, robot-motion planning for multiple moving-objects interception with constant acceleration. The position, velocity and acceleration of the free particles TFL are used as a kinematic information to generate the multiple interception trajectory TFP. The polynomial interpolation technique is implemented in a 2 dof robot with an operational space control...
Accelerating micro-architecture simulation is becoming increasingly urgent as the complexity of workload and simulated processor increases. This paper presents a novel two-stage sampling (TSS) scheme to accelerate the sampling-based simulation. It firstly selects some large samples from a dynamic instruction stream as candidates of detail simulation and then samples some small groups from each selected...
The paper presents a grey predicting method for identify and estimate of AUV moving target based on the information of forward looking sonar. The region model of forward looking sonar is founded, the method of predicting moving target based on gray prediction principle is introduced, and the simulation research is carried out for three typical movement: regularity movement, accelerate regularity movement...
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