Department of Engineering Sciences: Recent submissions
Now showing items 1001-1020 of 1119
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Dynamic output feedback passive control of uncertain switched stochastic systems with time-varying delay
(Journal article; Peer reviewed, 2013)This paper is concerned with the issues of passivity analysis and dynamic output feedback (DOF) passive control for uncertain switched stochastic systems with time-varying delay via multiple storage functions (MSFs) method. ... -
H-infinity control for networked control systems with time delays and packet dropouts
(Journal article; Peer reviewed, 2013)This paper is concerned with the H-infinity control issue for a class of networked control systems (NCSs) with packet dropouts and time-varying delays. Firstly, the addressed NCS is modeled as a Markovian discrete-time ... -
A mutual GrabCut method to solve co-segmentation
(Journal article; Peer reviewed, 2013)Co-segmentation aims at segmenting common objects from a group of images. Markov random field (MRF) has been widely used to solve co-segmentation, which introduces a global constraint to make the foreground similar to each ... -
BIBO stability analysis for delay switched systems with nonlinear perturbation
(Journal article; Peer reviewed, 2013)The problem of bounded-input bounded-output ( BIBO) stability is investigated for a class of delay switched systems with mixed time-varying discrete and constant neutral delays and nonlinear perturbation. Based on the ... -
Stabilization and controller design of 2D discrete switched systems with state delays under asynchronous switching
(Journal article; Peer reviewed, 2013)This paper is concerned with the problem of robust stabilization for a class of uncertain two-dimensional (2D) discrete switched systems with state delays under asynchronous switching. The asynchronous switching here means ... -
Stability analysis and stabilization of T-S fuzzy delta operator systems with time-varying delay via an input-output approach
(Journal article; Peer reviewed, 2013)The stability analysis and stabilization of Takagi-Sugeno (T-S) fuzzy delta operator systems with time-varying delay are investigated via an input-output approach. A model transformation method is employed to approximate ... -
Normal pressures and frictional tractions on shallow conical hopper walls after concentric filling: Predictions and experiments
(Journal article; Peer reviewed, 2013)A silo with a shallow hopper is designed to achieve the required silo capacity when the headroom available is limited, provided that the issue of segregation of stored particulate solids is not a problem. Several analytical ... -
Input-to-state stability of Lur'e hyperbolic distributed complex-valued Parameter control systems: LOI approach
(Journal article; Peer reviewed, 2013)In this work, input-to-state stability of Lur'e hyperbolic distributed complex-valued parameter control systems has been addressed. Using comparison principle, delay-dependent sufficient conditions for the input-to-state ... -
Using metaheuristic and fuzzy system for the optimization of material pull in a push-pull flow logistics network
(Journal article; Peer reviewed, 2013)Alternative material flow strategies in logistics networks have crucial influences on the overall performance of the networks. Material flows can follow push, pull, or hybrid systems. To get the advantages of both push and ... -
The impact of the subsidy policy on total factor productivity : an empirical analysis of China's cotton production
(Journal article; Peer reviewed, 2013)This paper develops one model to explore the relationship between the subsidy policy and the agricultural total factor productivity (TFP). It indicates that the agricultural TFP will be lower after the subsidy policy is ... -
Observer-based robust control for hydraulic velocity control system
(Journal article; Peer reviewed, 2013)This paper investigates the problems of robust stabilization and robust control for the secondary component speed control system with parameters uncertainty and load disturbance. The aim is to enhance the control performance ... -
Robust reliable control of uncertain discrete impulsive switched systems with state delays
(Journal article; Peer reviewed, 2013)This paper is concerned with the problem of robust reliable control for a class of uncertain discrete impulsive switched systems with state delays, where the actuators are subjected to failures. The parameter uncertainties ... -
Near infrared spectroscopic study on the adsorption of methanol on silica gel
(Journal article; Peer reviewed, 2013)The silanol groups on Silica gel surface are sites for adsorption of polar molecules. Alcohols and other polar molecules are easily adsorbed by forming hydrogen bondings with OH groups on silica gel surface. A study on the ... -
The nature of rest silanol groups on the surfaces of silica based solid phase extraction materials
(Journal article; Peer reviewed, 2013)Chemically bonded solid phase materials are very important in separation chemistry. The chemically modified silica gel contains rest silanol groups that can affect the retention properties when they are used for separation ... -
Fuzzy sliding mode controller design using Takagi-Sugeno modelled nonlinear systems
(Journal article; Peer reviewed, 2013)Adaptive fuzzy sliding mode controller for a class of uncertain nonlinear systems is proposed in this paper. The unknown system dynamics and upper bounds of the minimum approximation errors are adaptively updated with ... -
A novel active contour model for unsupervised low-key image segmentation
(Journal article; Peer reviewed, 2013)Unsupervised image segmentation is greatly useful in many vision-based applications. In this paper, we aim at the unsupervised low-key image segmentation. In low-key images, dark tone dominates the background, and gray ... -
Modeling, simulation and design optimization of a hoisting rig active heave compensation system
(Journal article; Peer reviewed, 2013)The objective of this paper is to present an approach in developing a virtual active heave compensation system for a draw-works on a hoisting rig. A virtual system enables quicker overall product development time of a ... -
Suspension system performance optimization with discrete design variables
(Journal article; Peer reviewed, 2013)Suspension systems on commercial vehicles have become an important feature meeting the requirements from costumers and legislation. The performance of the suspension system is often limited by available catalogue components. ... -
Error kinematic modeling and calibration of the 3-DOF Gantry-Tau parallel kinematic machine
(Master thesis, 2012)This thesis presents the results of an investigation into modeling the kinematic errors of the Gantry-Tau Parallel Kinematic Manipulator. The calculations has been done onto the Gantry-Tau which has been designed in ... -
Numerical and experimental study of friction loss in hydrostatic motor
(Journal article; Peer reviewed, 2012)This paper presents a numerical and experimental study of the losses in a hydrostatic motor principle. The motor is designed so that the structural deflections and lubricating regimes between moving surfaces and, subsequently, ...