Browsing Engineering by Title
Now showing items 399418 of 620

[20120827] Oblique shock interactions with gas cylinder interfaces
This thesis presents an experimental study of fluid instabilities formed due to an oblique interatction of a shock wave with a cylindrical gas column seeded with glycol droplets. Two gases are injected into quiescent air ... 
[20120407] Observerbased controller synthesis for modelbased fuzzy systems via linear matrix inequalities
In this chapter, we extend some recent results regarding the stability of continuoustime and discretetime TakagiSugeno (TS) fuzzy systems to the case where the system’s states are not available for measurement. We ... 
[20110207] Offpeak summer performance enhancement for rows of fixed solar thermal collectors using reflective surfaces
The possibility of increasing the efficiency of fixed solar thermal collectors without greatly adding to the cost or complexity of the overall solar collection system was studied. The focus was on the use of flat mirrors, ... 
[20070417] On Discrete GaussHermite Functions and Eigenvectors of the Discrete Fourier Transform
The problem of furnishing an orthogonal basis of eigenvectors for the discrete Fourier transform (DFT) is fundamental to signal processing. Recent developments in the area of discrete fractional Fourier analysis also ... 
[20120329] On Load balancing in distributed systems with large time delays: Theory and experiment
In a distributed computing environment with a high communication cost, limiting the number of balancing instants results in a better performance than the case where load balancing is executed continuously. Therefore, finding ... 
[20110801] On Orthogonal Modes of Continuous and Discrete Frequency Modulation
Fourier analysis techniques remain the staple tools for the processing of sinusoidal signals with stationary frequency content. These techniques however, are unsuitable for the analysis of signals with timevarying ... 
[20120424] On Robustness Analysis in the Control of Nonlinear Systems
This paper deals with the class of nonlinear systems described by the equation M(q(t))q(t) = f(t)  N(q(t),qÂ¿(t)) with f(t) a control input. We employ a simple method of control design which has two stages. First, a global ... 
[20120413] On The Computational Complexity Of The Manufacturing Job Shop And Reentrant Flow Line
This paper presents a comparison study of the computational complexity of the general job shop protocol and the flow line protocol in a flexible manufacturing system. It is shown that a certain representative problem of ... 
[20060310] On the Computational Complexity of the Manufacturing Job Shop and Renetrant Flow Line
This paper presents a comparison study of the computational complexity of the general job shop protocol and the flow line protocol in a flexible manufacturing system. It is shown that a certain representative problem ... 
[20101013] On the Configuration of Sensors and Actuators on a Pioneer 3AT Robot Controlled through the Robotic Operating System ROS
We present a set of technical procedures to carry out experiments involving mobile robots. The hardware and software configuration to access the sensors and actuators in the robots usually turn out to be a relatively ... 
[20120412] On the control of a high power backwardwave oscillator using quantifier elimination methods
This paper presents an experimental/theoretical study of methods to identify and control a repetitivelypulsed high power microwave source. A neural network was used to model the system and quantifier elimination (QE) ... 
[20120412] On the design of nonfragile compensators via symbolic quantifier elimination
In this paper symbolic quantifier elimination methods are used to explore the fragility of feedback compensators, and to design feedback systems with nonfragile compensators. A compensator is said to be fragile if given ... 
[20120426] ON THE FRAGILITY OF HIGHDIMENSIONAL CONTROLLERS
In this paper we study the fragility of controllers designed to optimize some performance indices. We trace the fragility problem to the dimension of the resulting controllers, and use results from highdimensional geometry ... 
[20060310] On the Grunbaum Commutor Based Discrete Fractional Fourier Transform
The basis functions of the continuous fractional Fourier transform (FRFT) are linear chirp signals that are suitable for timefrequency analysis of signals with chirping timefrequency content. In the continuoustime ... 
[20120426] On the Relative Degree of Simultaneously Stabilizing Controllers
In this brief paper 1 we present new necessary and sufficient conditions on the controller for the existence of a single controller to stabilize a set of n SISO plants: P1; P2; :::; Pn. As is well known this is equivalent ... 
[20120419] On the Robust Control of Uncertain Nonlinear Systems
In this paper we study the problem of controlling uncertain nonlinear systems. The uncertainty is considered to be dynamic and additive, and the nominal system is assumed to be feedbacklinearizable. It is shown that the ... 
[20120407] On the rotating surge and stall and the polar control method
In this paper, the polar controller is applied to the threestate, onemode MooreGreitzer Compressor model. A benchmark is first established with a backstepping controller. The polar control method is then explained, and ... 
[20130131] On the spatial predictability of wireless channels and robust networked cooperation in mobile sensor networks
The wireless sensor network revolution has created the possibility of exploring and controlling the environment in ways not possible before. The vision of a multiagent network cooperatively learning and adapting in harsh ... 
[20120412] On the stability of LAPART
In this paper we show how the stability of a LAPART neural network can be deduced as a result of a general theorem on the input/output stability of nonlinear systems. This result gives conditions on how to choose certain ... 
[20100909] On the Use of Independent Component Analysis & Functional Network Connectivity Analysis: Evaluation on Two Distinct LargeScale Psychopathology Studies
Medical image analysis techniques are becoming ever useful in allowing us to better understand the complexities and constructs of the brain and its functions. These analysis methods have proven to be integral in revealing ...