Evaluation of proactive maintenance policies on a stochastically dependent hidden multi-component system using DBNs

In this work on the example of educational system of Uzbekistan the new paradigm of education is substantiated in the following edition: education through all life. It is demonstrated that the proposed in correspondence to this paradigm the formalized model reflects multi-component system, multi-variant approaches and cyclist of educational process in a modern society. The examples of educational processes which are modeled within the framework of proposed formalized model of education are presented.

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Statistical physics of fracture and earthquakes

Philosophical Transactions of The Royal Society A Mathematical Physical and Engineering Sciences ◽

10.1098/rsta.2018.0202 ◽

2018 ◽

Vol 377 (2136) ◽

pp. 20180202

Author(s):

Soumyajyoti Biswas ◽

Lucas Goehring ◽

Bikas K. Chakrabarti

Keyword(s):

Complex System ◽

Stress Field ◽

Statistical Physics ◽

Disordered Materials ◽

Emergent Properties ◽

Theme Issue ◽

Component System ◽

Playing Field ◽

Collective Response ◽

Multi Component System

Manifestations of emergent properties in stressed disordered materials are often the result of an interplay between strong perturbations in the stress field around defects. The collective response of a long-ranged correlated multi-component system is an ideal playing field for statistical physics. Hence, many aspects of such collective responses in widely spread length and energy scales can be addressed by the tools of statistical physics. In this theme issue, some of these aspects are treated from various angles of experiments, simulations and analytical methods, and connected together by their common base of complex-system dynamics. This article is part of the theme issue ‘Statistical physics of fracture and earthquakes’ .

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Thermal Investigation of a Honing Process Utilizing Polyborosiloxane Impregnated with Abrasive Particles

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1243/pime_proc_1996_210_168_02 ◽

1996 ◽

Vol 210 (1) ◽

pp. 43-50

Author(s):

A Fioravanti ◽

A J Fletcher

Keyword(s):

Thermal Effects ◽

Complex Geometry ◽

Target Surface ◽

Polishing Process ◽

Complete Coverage ◽

Component System ◽

Abrasive Particles ◽

Temperature Distributions ◽

Particulate Form ◽

Multi Component System

A novel honing and polishing process utilizes polyborosiloxane impregnated with a range of abrasives in particulate form, to polish mould cavities of complex geometry. The polymer, which deforms in such a way as to allow complete coverage of the target surface, is used to carry the abrasive. This compound is agitated using an ultrasonic source and is made to flow relative to the target surface. The process causes heating of the various components in the system. This is the second paper concerned with the prediction of the resultant temperature distributions. The work reported here is an extension of the previous work to take into account the complex geometry of the multi-component system used in the operation. Furthermore, the development of the honing process required the introduction of flow of polishing compound relative to the workpiece. As a result the previous work has been extended to take into account the thermal effects of this flow. The modelling work has been complemented by measurement of temperatures in a geometry that is representative of the processing requirements. The calculated and measured results have been compared and the model validated accordingly.

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