It is hard to set up catastrophe potential function by using conventional methods and choose control variables of catastrophe potential function. So the method of setting up potential function is given to analyze the brittleness of complex system by means of relations among systems. The feasibility of analyzing complex system by using catastrophe theory is also discussed. Based on the data come...

This paper aims to establish a more direct relation between the studies of complexity in the field of typological-evolutionary linguistics and complex-system theory. The article explains what complex-system theory can tell us about language complexity and how insights from the science of complex systems can be important to the analysis of linguistic complexity. By founding his argumentation on ...

introduction: education and training in surgery is in the middle of apprenticeship style of learning especially in operating room with little importance of understanding on how trainees learn. methods: this training is one of the most difficult types of training. medical training and expertise are the specialty of this education system. we can name these complex fields as “operational strategie...

Complex system evaluation lies in the core position of system engineering theory and methodology and is also a research hotspot and difficulty in system engineering theory and practice research. The paper, taking performance evaluation of integrates with agriculture base and supermarket for example, advances an evaluation indicator system and a fuzzy comprehensive evaluation algorithm. Firstly,...

The patient discharge process is one of the most critical and complex healthcare processes as it involves several actors with a variety of skills and roles working towards the outcome of effective and efficient discharge of a patient from a hospital. This paper used a case study of the patient discharge process of two care units in a large urban hospital in which we analysed the process as an a...

A Peer-to-peer Data Network (PDN) is an open and evolving society of peer nodes that assemble into a network to share their data for mutual benefit. PDNs are enabled by distributed query processing. We argue that with a self-organizing, dynamic, and large-scale architecture and nodes that inherit extensive autonomy from their human users, this new generation of distributed database systems shou...

The food chain refers to a natural system by which energy is transmitted from one organism to another. In fact, a food chain consists of producers, consumers and decomposition. Presence of complex food web increase the stability of the ecosystem. Classical food chain theory arises from Lotka-Volterra model. In the present paper, the dynamics behavior of three level food chain is studied. A syst...