We study interior operators and interior structures in a fuzzy setting.We investigate systems of “almost open” fuzzy sets and the relationshipsto fuzzy interior operators and fuzzy interior systems.

The Andes are a unique geological and biogeographic feature of South America. From the perspective human geography, this mountain range provides ready access to highly diverse altitudinally arranged ecosystems. combination geologically ecologically landscape an exceptional context explore potential strontium isotopes track movements people conveyance material culture. Here we develop isotopic b...

a major constraint to the application of any form of knowledge and principles is the awareness, understanding and acceptance of the knowledge and principles. systems thinking (st) is a way of understanding and thinking about the nature of  health systems and how to make and implement decisions within health systems to maximize desired and minimize undesired effects. a major constraint to applyi...

background and objectives: evaluation has an important role in software development. quality is considered in the evaluation of information systems, which depends on usability, availability, validity, compatibility, and response time. this research was performed with the aim of determining the usability of hospital information systems according to the 7 principles of isometric 9241, part 10. me...

the problem of pole assignment, also known as an eigenvalue assignment, in linear discrete-time periodic systems in discs was solved by a novel method which employs elementary similarity operations. the former methods tried to assign the points inside the unit circle while preserving the stability of the discrete time periodic system. nevertheless, now we can obtain the location of eigenvalues ...

this paper is concerned with the consensus tracking problem of high order mimo nonlinear multi-agent systems. the agents must follow a leader node in presence of unknown dynamics and uncertain external disturbances. the communication network topology of agents is assumed to be a fixed undirected graph. a distributed adaptive control method is proposed to solve the consensus problem utilizing re...