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This paper shows the extension of an entity model developed in cooperation with project partners by an “Organizational Entity” in order to detect potential weaknesses in IT security as well as to prove the standard conformity (IT security level according to IEC 62443) of the examined systems. This allows suitable security measures to be taken systematically and IT security to be optimized in the overall system. The first application of this progressive approach on a subsystem, the distillation, of the model factory ET of the University of Applied Sciences Magdeburg-Stendal is promising.

The glazed roof has been widely used in modern building design. Compared with ordinary glazed roof, hollow glazed roof has better thermal insulation performance, which can improve the indoor thermal environment effectively. In order to study the effects of physical parameters on heat transfer performance of hollow glazed roof. In the present work, according to the actual size of the building, an entity model of a double-slope hollow glazed roof was built based on the similar theory. The heat transfer performance of double-slope hollow glazed roof with different slope angles in hot summer and cold winter regions was experimentally studied. Results indicate that as the roof slope decreases, the effect of reducing the inner surface temperature of the roof is relatively obvious. When the roof angle decreases from 45° to 30°, the peak temperature of the inner surface decreases by about 12.2%. Then through the established numerical model, further studied the influence of related parameters on the heat transfer performance of the roof by FLUENT software based on the experimental data. The numerical results show that changing the thickness of the roof hollow layer has a more significant impact on the roof's heat transfer performance than changing the thickness of the roof glazing layer. When the thickness of both is increased by 12 mm, the peak temperature of the roof inner surface of the former decreases by 5.5%, and the latter decreases by 1.7%. Moreover, when the thickness of the inner and outer glazing is changed (that is, outside thick, inside thin and inside thick, outside thin hollow glazed roof), the roof heat transfer performance is hardly affected.

3D geological modeling has involved the complexity of two aspects: data and models. 3D geological modeling of the tunnel project real environment needs to fully abstract data, the entity model needs to be decomposed into the geometric model, property model, and the relationship of geological structure between tunnel engineering geological body and the surrounding geological body needs to know. The paper has researched and analyzed the process and method of the tunnel engineering geological body modeling, and the conclusion has shown that the 3D modeling based on the overall tunnel engineering geological body is more suitable for the real environment; its effect of modeling is obviously superior to the simple superposition of the general geometric modeling and property modeling.

A new model is presented to describe the thermodynamic nature of metallic solutions This model, called the Entity Model is based on the concept of entity which was defined recently, It makes excellent predictions fora number of binary metallic solutions. It provides model parameters which are common for all systems where it is applicable. This distinguishes it from the other models where parameters are system specific, except in the case of the Raoultian model. This makes the new model the simplest model available apart from the Raoultian but more widely applicable than the latter.

An analysis is made to find the transport properties of a free turbulent flow using an entity model previously shown to have good prediction capability for pipe flow. It is shown that the double structure of the turbulent eddies and the anisotropic shape of the larger eddies can be satisfactorily incorporated into the model without undue complexity. The analysis results in expressions for the various diffusivities in terms of properties of the turbulence. Predictions can be made for the diffusivity ratios and their dependence on molecular properties of the fluid determined. The results are shown to be in good agreement with the available experimental data.