The paper deals with the problem of determining heating time a bundle flat steel bars. To describe mathematical model transient heat transfer energy balance method was used. most important element is to determine effective thermal conductivity coefficient using electrical analogy. simulations were performed for increasing temperature furnace. results show that different sizes and arrangement ca...

Organ ischemia, particularly mesenteric and renal, can occur despite a seemingly adequate perfusion flow and pressure during a period of cardiopulmonary bypass. The blood pressure to run bypass at remains a contentious issue. We present the concept that perfusion pressure during cardiopulmonary bypass should be patient specific, depending on an individual's resting pre-procedural blood pressure...

Based on an analogy with electromagnetic metamaterials, we develop an effective medium description for the propagation of electron matter waves in bulk semiconductors with a zinc-blende structure. It is formally demonstrated that even though departing from a different starting point, our theory gives results for the energy stationary states consistent with Bastard’s envelope-function approximat...

There exist some modular mechanical systems that exhibit inherent synchronization capabilities. Among these, arrays of pendula connected to the same moving platform, under particular conditions are analyzed in this work, tend approach synchronous in-phase or antiphase motion. Such an appealing behavior can be replicated within electronic circuits equipped with multiple power converters achieve ...

Image analogies is a framework for processing images by example. Image analogies uses training data A and A′ in order to learn a filter that can be applied to an unfiltered target image B to produce an analogous image B′. This means that B′ relates to B the same way A′ relates to A. The framework is general and can be applied to many different applications. Typical applications for image analog...

The Helmholtz resonator is a prototype of a single acoustic resonance, which can be modeled with a digital resonator. This paper extends this concept by coupling several Helmholtz resonators. The resulting structure is called a Helmholtz resonator tree. The height of the tree is defined by the number of resonator layers that are interconnected. The overall number of resonance frequencies of a H...

BACKGROUND AND OBJECTIVE The circle of Willis (COW) supports adequate blood supply to the brain. The cardiovascular system, in the current study, is modeled using an equivalent electronic system focusing on the COW. METHODS In our previous study we used 42 compartments to model whole cardiovascular system. In the current study, nevertheless, we extended our model by using 63 compartments to m...

This paper discusses a particular type of knowledge, subjective knowledge, and its implication for inventive and entrepreneurial activity. The justification processes of subjective knowledge primarily involve internal coherence and procedural reasoning. These characteristics make subjective knowledge an interesting candidate for the analysis of concept formation in contexts where fundamental un...