The H∞ control design problem is considered for nonlinear systems with unknown internal system model. It is known that the nonlinear H∞ control problem can be transformed into solving the so-called Hamilton-Jacobi-Isaacs (HJI) equation, which is a nonlinear partial differential equation that is generally impossible to be solved analytically. Even worse, model-based approaches cannot be used for...

This paper describes two techniques aimed at design-driven product innovation. Both techniques focus on providing a different, initially disruptive, perspective form which to approach a design assignment. As a result, sticky meanings and conventions are shaken loose, opening up avenues for considering new meanings that set the stage for design-driven product innovation.. Workshop results sugges...

Socio-technical environments grounded in end-user development (EUD) frameworks and supported by EUD technologies provide fundamental enabling conditions for cultures of participation. This paper argues and provides examples and evidence for the following claims: cultures of participation can cause (1) information overload (by generating substantially more information), (2) participation overloa...

The mobile wireless environment poses challenging problems in designing fault tolerant systems because of the dynamics of mobility and limited bandwidth available on wireless links Traditional fault tolerance schemes therefore cannot be directly applied to these systems Mobile systems are often subject to environ mental conditions which can cause loss of communica tions or data Because of the c...

BACKGROUND Randomized controlled trials are considered the "gold standard" for scientific rigor in the assessment of benefits and harms of interventions in healthcare. They may not always be feasible, however, when evaluating quality improvement interventions in real-world healthcare settings. Non-randomized controlled trials (NCTs) are designed to answer questions of effectiveness of intervent...

objectives: the authors of this paper hypothesized that vibration stimulation applied by a vibratory orthosis improves balance in patients with parkinson’s disease (pd). in this study we evaluate this hypothesis. methods & materials: fourteen pd patients (12 male and 2 female) with mean age of 59.9±9.1 (±sd) years were participated in this cross- sectional study. using biodex balance system, th...

damping-off of seedling is a major disease of cotton in iran. disease may become epidemic in soil with low temperature and high moisture if seed treatment isn’t done. recently, trichoderma spp. are considered as one of the biological control methods of seedling damping-off. one proposed mechanism for biocontrol in trichoderma spp. is stimulation of host defense responses and induction of resist...