This study improves an approach for Markov chain-based photovoltaic-coupled energy storage model in order to serve a more reliable and sustainable power supply system. In this paper, two chain models are proposed: Embedded Absorbing chain. The equilibrium probabilities of the completely characterize system behavior at certain point time. Thus, can be used calculate important measurements evalua...

Sometimes conventional feedback controllers may not perform well online because of the variation in process dynamics due to nonlinear actuators, changes in environmental conditions and variation in the character of the disturbances. To overcome the above problem, this paper deals with the designing of a controller for a second order system with Model Reference Adaptive Control (MRAC) scheme usi...

T he world economy has experienced a bulk of positive and negative shocks in crude oil prices and exchange rates over the years, and that global inflation has undergone some changes. Such shocks have affected the macroeconomic variables in the countries of the world and have challenged the economies of these countries, and have led them to take different measures to protect themselves agai...

this study was conducted to define the prevalence and types of corneal astigmatism in relation with corneal optical power, axial length, sex and patient age. 641 cataract patients were included in a descriptive study. complete eye examinations were included in a descriptive study. complete eye examinations were performed. the data were analysed by standard procedures including analysis of varia...

in contemporary texts of islamic logic, the “subject-obversion” has been introduced as a rule on basis of which one can replace the subject term of a categorical proposition with its complement and change both quality and quantity of the proposition. thus from an a-proposition such as “all a is b”, one can infer “some not-a is not b”. well, let’s take that a is included by b but not vice versa,...

Background: Fracture treatment in children relies on rapid healing and spontaneous correction of angulated fractures; therefore most of the diaphyseal fractures can be treated by plaster alone. Operative treatment of children's fractures is often looked at critically. Aim: To compare mean duration of bone union in traction followed by Spica cast versus titanium elastic nailing for fracture shaf...

Database applications undergo frequent schema changes. To change the schema, the application has to be shut down and migrated to the new version, or run in a mixed mode that supports old and new clients, e.g., via schema versioning. Shutdowns are problematic for applications that cannot tolerate downtime such as embedded, real-time or missioncritical systems; in the Cloud, shutdowns can lead to...