This thesis describes a new class of delay generation structures which can produce precise delays with sub-gate delay resolution. These structures are based on coupled ring oscilla-tors which oscillate at the same frequency. One such structure, called an array oscillator, consists of a linear array of ring oscillators. A unique coupling arrangement forces the outputs of the ring oscillators to ...

This paper investigates the problem of decentralized model reference adaptive control (MRAC) for a class of large scale systems with time varying delays in interconnected terms and state and input delays. The upper bounds of the interconnection terms are considered to be unknown. Time varying delays in the nonlinear interconnection terms are bounded and nonnegative continuous functions and thei...

Time-delays are important components of many dynamical systems that describe coupling or interconnection between dynamics, propagation or transport phenomena, and heredity and competition in population dynamics. The stabilization with time delay in observation or control represents difficult mathematical challenges in the control of distributed parameter systems. It is well-known that the stabi...

This article studies the formation stabilization problem of asynchronous nonlinear multiagent systems (MAS) subject to parametric uncertainties, external disturbances, and bounded time-varying communication delays. A self-triggered min–max distributed model predictive control (DMPC) approach is proposed address this problem. At triggering instants, each agent solves a local optimization based o...

PURPOSE/OBJECTIVES To propose a conceptualization that identifies when diagnostic delays occur and suggests a delay-reduction strategy for the diagnosis of ovarian cancer. DATA SOURCES Findings and extrapolations from published national and international research studies, research reviews, books, Internet sources, and a family-functioning research project. DATA SYNTHESIS Three phases of dia...

Multifocal pupillographic objective perimetry (mfPOP) has the advantage of being a non-invasive, objective method for measuring up to 88 visual field responses from both eyes concurrently within 5min. To date mfPOP has been used to assess the peripheral visual field. Here we examine the practicality of mfPOP for testing the macular region of the visual field. This study examines variations in t...

In this paper, the outlier-resistant l2-l∞ state estimation issue is investigated for a class of discrete-time memristive neural networks (DMNNs) with time-delays. Measurement outputs could occur unpredictable abnormal data due possibly to outliers from interferences, cyber-attacks as well vibration equipment. Obviously, performance be degraded if these measurements were directly taken into inn...

<p style='text-indent:20px;'>We consider the classical Nicholson's blowflies model incorporating two distinctive time-varying delays. One of delays corresponds to length individual's life cycle, and another specific physiological stage when self-limitation feedback takes place. Unlike formulation equation where self-regulation appears due competition productive adults for resources, our c...