Influence of the material reverse flow process on the regularities of pressure formation along the length of the screw surface of extruders

Nowadays, the Industry 4.0 concept affects every area of the industrial, economic, social and personal sectors. The most significant changings are the automation and the digitalization. This is also true for the material handling processes, where the handling systems use more and more automated machines; planning, operation and optimization of different logistic processes are based on many digital data collected from the material flow process. However, new methods and devices require new solutions which define new research directions. In this paper we describe the state of the art of the material handling researches and draw the role of the UMi-TWINN partner institutes in these fields. As a result of this H2020 EU project, scientific excellence of the University of Miskolc can be increased and new research activities will be started.

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Faculty Opinions recommendation of Proposal of the reverse flow model for the origin of the eukaryotic cell based on comparative analyses of Asgard archaeal metabolism.

Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature ◽

10.3410/f.735432074.793568983 ◽

2019 ◽

Author(s):

Ricardo Amils

Keyword(s):

Flow Model ◽

Reverse Flow ◽

Eukaryotic Cell ◽

Comparative Analyses

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Parameters Measurement for Multiphase Flow Process

ACTA AUTOMATICA SINICA ◽

10.3724/sp.j.1004.2013.01923 ◽

2013 ◽

Vol 39 (11) ◽

pp. 1923 ◽

Cited By ~ 6

Author(s):

Chao TAN ◽

Feng DONG

Keyword(s):

Multiphase Flow ◽

Flow Process ◽

Parameters Measurement

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Diffuser Efficiency and Flow Process of Supersonic Wind Tunnels with Free Jet Test Section

10.21236/ada377566 ◽

1950 ◽

Cited By ~ 2

Author(s):

Rudolf Hermann

Keyword(s):

Test Section ◽

Wind Tunnels ◽

Flow Process ◽

Free Jet

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Prenatal ultrasound diagnosis of pulmonary atresia in combination with left atrial isomerism

10.21516/2413-1458-2017-16-1-66-71 ◽

2017 ◽

Author(s):

M Medvedev, M.V. Kubrina, O.S. Zarubina et all

Keyword(s):

Left Atrial ◽

Reverse Flow ◽

Ductus Arteriosus ◽

Pulmonary Atresia ◽

Prenatal Ultrasound ◽

Ultrasound Diagnosis ◽

Right Atrial ◽

Second Trimester ◽

Left And Right ◽

Atrial Isomerism

Two cases of prenatal ultrasound diagnosis of left atrial isomerism in the second trimester of gestation is presented. These two cases were in combination with pulmonary atresia and right aortic arch. Left atrial isomerism was identify by the digit-like shape of the left and right atrial appendages. The pulmonary atresia was identified on the basis of reverse flow in small pulmonary artery. A right aortic was identified by “U”-shaped confluence of aorta and ductus arteriosus in view of three vessels and trachea. The trachea was located between the vessels. The pregnancies were terminated and prenatal diagnosis was conformed at autopsy

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Gas-Water Flow Behaviour During Mutual Displacement in Porous Media

The Open Fuels & Energy Science Journal ◽

10.2174/1876973x01710010013 ◽

2017 ◽

Vol 10 (1) ◽

pp. 13-22

Author(s):

Renyi Cao ◽

Junjie Xu ◽

Xiaoping Yang ◽

Renkai Jiang ◽

Changchao Chen

Keyword(s):

Porous Media ◽

Relative Permeability ◽

Gas Storage ◽

Fluid Distribution ◽

Water Displacement ◽

Phase Zone ◽

Two Phase ◽

Flow Process ◽

Single Well ◽

Mutual Displacement

During oilfield development, there exist multi-cycle gas–water mutual displacement processes. This means that a cycling process such as water driving gas–gas driving water–water driving gas is used for the operation of injection and production in a single well (such as foam huff and puff in single well or water-bearing gas storage). In this paper, by using core- and micro-pore scales model, we study the distribution of gas and water and the flow process of gas-water mutual displacement. We find that gas and water are easier to disperse in the porous media and do not flow in continuous gas and water phases. The Jamin effect of the gas or bubble becomes more severe and makes the flow mechanism of multi-cycle gas–water displacement different from the conventional water driving gas or gas driving water processes. Based on experiments of gas–water mutual displacement, the changing mechanism of gas–water displacement is determined. The results indicate that (1) after gas–water mutual displacement, the residual gas saturation of a gas–water coexistence zone becomes larger and the two-phase zone becomes narrower, (2) increasing the number of injection and production cycles causes the relative permeability of gas to increase and relative permeability for water to decrease, (3) it becomes easier for gas to intrude and the invaded water becomes more difficult to drive out and (4) the microcosmic fluid distribution of each stage have a great difference, which caused the two-phase region becomes narrower and effective volume of gas storage becomes narrower.

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Mathematical Description of the Influence of the Bunker Outlet on the Grain Motion in the Microwave Convective Area

Elektrotekhnologii i elektrooborudovanie v APK ◽

10.22314/2658-4859-2020-67-3-73-80 ◽

2020 ◽

pp. 73-80

Author(s):

Aleksey N. Vasil’yev ◽

Andrey A. Tsymbal ◽

Aleksey A. Vasil’yev

Keyword(s):

Mathematical Description ◽

Microwave Field ◽

Convective Zone ◽

Research Purpose ◽

Field Zone ◽

Flow Process ◽

Grain Processing ◽

Grain Flow ◽

The Right ◽

Processing Zone

One of the environmentaly friendly methods of drying and decontamination of grain is its processing in microwave-convective installations. The efficiency of using the microwave field depends on the uniformity of its distribution in the grain processing zone. This is provided by the design features of the microwave core and waveguides. The uniformity of grain movement in the microwave field zone is important. It is important that the grain is moved in the microwave convective zone by hydraulic movement. In this case, the grain passes through zones with different intensity of the microwave field sequentially and the grain processing is uniform. (Research purpose) The research purpose is in making a mathematical dependence of parameters of the hopper outlet on the movement of grain in the microwave convective zone. (Materials and methods) The article presents the parameters of the outlet that ensure the grain flow without forming static arches in accordance with the method of calculating outlet bins. Fluctuations in humidity for different crops of processed grain will not lead to a violation of the grain flow process. The resulting equation for changing the height of the dynamic arch, depending on its location in the height of the hopper, allows to determine the uneven flow of grain from the hopper outlet. (Results and discussion) When unloading grain, there is an uneven flow in the right and left halves of the hopper, relative to the central axis. When only one hopper is unloaded, 0.84 kilograms more wheat is unloaded from its left half than from the right. This difference leads to uneven and reduced efficiency of grain processing in the microwave-convective zone. (Conclusions) To ensure the uniformity of grain processing in the microwave convective zone, it is necessary to improve the mechanism of grain flow from the outlet of the hopper.

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