This paper deals with modeling and analysis of complex mechanical systems that deteriorate age. As age, the questions on their availability reliability start to surface. The system is believed suffer from internal stochastic degradation mechanism described as a gradual continuous process performance deterioration. Therefore, it becomes difficult for maintenance engineer model such system. Semi-...

There is a strong link between decision making and environmental stresses. Two dilemmas confront decision makers: how and when to adapt to sea level rise, due to complexities of environmental systems and the changing nature of the decision making process. This process is inherently complex and often involves many stakeholders with conflicting views. Considering the complexity and dynamic nature...

model predictive controller is widely used in industrial plants. uncertainty is one of the critical issues in real systems. in this paper, the direct adaptive simplified model predictive control (smpc) is proposed for unknown or time varying plants with uncertainties. by estimating the plant step response in each sample, the controller is designed and the controller coefficients are directly ca...

Scaled models often used for observing the engineering characteristics of a hypothetical design are limited in their applicability to linear and non – distorted systems. Certain changes have to be employed in the scaling procedure to account for material irregularities and geometric discontinuities when such situations when non – linear variations need to be accounted for. Building on the devel...

USA Industry and government both depend heavily on analytical laboratory measurements. Although these measurements provide critical feedback in many situations , such as product quality assurance, acceptance testing, and regulatory compliance, they are generally viewed with mixed feelings. On the positive side, industry recognizes that improvements in product and process capability often depend...

We describe an analytical performance model for IEEE Futurebus+-based systems with emphasis on real-time applications. The performance model forms the basis of a design tool for Futurebus+ systems. With this design tool, the expected execution-time behavior of planned multiprocessor-based systems may be assessed. The performance model consists of two levels: The bus level model and the applicat...