objective: this study aimed to investigate the prediction of asthma control on the basis of perceived stress, locus of control, and self-efficacy in adult patients with asthma.  methods: this was a descriptive-correlative and cross-sectional study.the solecty of this study is all asthmatic patients in tehran. our sample consisted of 100 participants who were selected by purposeful sampling meth...

The main focus of this thesis is to find simple ways of implementing optimal operation of process plants. The work is in the spirit of “self-optimizing control”, which can be summarized as [Skogestad, 2000b]: “The goal is to find a self-optimizing control structure where acceptable operation under all conditions is achieved with constant setpoints for the controlled variables. More generally, t...

The paper is concentrated on two essential problems: neural networks topology optimization and weights parameters computation that are often solved separately. This paper describes new solution of solving both selected problems together. According to proposed methodology a special kind of multilayer ontogenic neural networks called SelfOptimizing Neural Networks (SONNs) can simultaneously devel...

The static single-assignment (SSA) form of a program provides data flow information in a form which makes some compiler optimizations easy to perform. In this paper we present a new, simple method for converting to SSA form, which produces correct solutions for nonreducible control-flow graphs, and produces minimal solutions for reducible ones. Our timing results show that, despite its simplici...

The conceivable development of information and communication technology will enable mechatronic systems with inherent partial intelligence. We refer to this by using the term “self-optimization”. Self-Optimizing systems react autonomously and flexibly on changing operation conditions. They are able to learn and optimize their behavior at runtime. The development of mechatronic and especially se...

Economic plantwide control of the cumene process over a large throughput range (design to maximum achievable throughput) is studied. The process has 12 steady state operating degrees of freedom (DOFs), which are optimized for maximum hourly profit. At maximum throughput, the highest number of constraints (eight) is active leaving four unconstrained degrees of freedom. Reasonable controlled vari...

Computer systems hosting critical e-commerce applications must typically satisfy stringent quality-of-service (QoS) requirements under dynamic operating conditions and workloads. Also, as such systems increase in size and complexity, maintaining the desired QoS by manually tuning the numerous performance-related parameters will become very difficult. This paper addresses the design of self-opti...