scholarly journals The study of fine-cleaning treatment for removal of burrs in screw rotors

2021 ◽  
Vol 1029 ◽  
pp. 012001
Author(s):  
V A Lebedev ◽  
G V Serga ◽  
M M Chaava ◽  
L V Chunakhova ◽  
Al-Obaidi Luai Mohammed Radgab
Keyword(s):  
Screw Rotors ◽  
Cleaning Treatment

The pumping characteristics of screw rotors. I. The theory of calculation of the pumping capacity of screw rotors

1987 ◽  
Vol 52 (2) ◽  
pp. 357-371 ◽  
Author(s):  
František Rieger
Keyword(s):  
Present State ◽  
Flow Rate ◽  
Volumetric Flow Rate ◽  
Screw Rotor ◽  
Screw Rotors

This paper summarizes the present state of the theory of calculation of the pumping capacity of screw rotors. The calculation starts from the equation for the volumetric flow rate of the flow between two unconfined plates modified by correction coefficients obtained from the relationships for the flow rate in simpler geometrical configurations to which the screw rotor may be, under certain circumstances, reduced.

Power input of screw rotors and agitators: Theory of calculation of power input of screw rotors

1989 ◽  
Vol 54 (6) ◽  
pp. 1575-1588 ◽  
Author(s):  
František Rieger
Keyword(s):  
Power Input ◽  
Screw Rotors

A method has been proposed of the calculation of screw rotors. The calculation starts from the equation for the power input for the flow between two plates corrected by correction coefficients.

The mechanism study of mixed Ar/O2 plasma-cleaning treatment on niobium surface for work function improvement

2019 ◽  
Vol 475 ◽  
pp. 143-150
Author(s):  
Zhiyan Zhang ◽  
Zongbiao Ye ◽  
Zhijun Wang ◽  
Fujun Gou ◽  
Bizhou Shen ◽  
...  
Keyword(s):  
Work Function ◽  
Plasma Cleaning ◽  
Mechanism Study ◽  
Cleaning Treatment ◽  
O2 Plasma

Cleaning Treatment to Advance the Quality of FIB Samples for Transmission Electron Microscopy

2004 ◽  
Vol 10 (S02) ◽  
pp. 1166-1167
Author(s):  
Wolfgang Gruenewald ◽  
Hans-Juergen Engelmann ◽  
Beate Volkmann
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Transmission Electron ◽  
Cleaning Treatment

Extended abstract of a paper presented at Microscopy and Microanalysis 2004 in Savannah, Georgia, USA, August 1–5, 2004.

scholarly journals FINISH-STRENGTHENING EFFECTIVENESS INCREASE BASED ON USE OF SCREW ROTORS WITH WAVE SURFACE ON PERIMETER

2019 ◽  
Vol 2019 (7) ◽  
pp. 4-10 ◽  
Author(s):  
Валерий Лебедев ◽  
Valeriy Lebedev ◽  
Георгий Серга ◽  
Georgiy Serga
Keyword(s):  
Symmetry Axis ◽  
Rotation Axis ◽  
Acute Angle ◽  
Operating Principle ◽  
Descriptive Geometry ◽  
Wave Surface ◽  
Program Complex ◽  
Engineering Graphics ◽  
Screw Rotors

The paper reports the results of investigations on finish-strengthening improvement. There are offered labor bodies in the form of screw rotors with a wave surface on the perimeter of combined screw rotors in which a rotation axis is located at an acute angle to a symmetry axis. The search of designs of screw rotors with a wave surface on the perimeter was carried out through the methods of descriptive geometry and engineering graphics with the aid of “Compass-3D” program complex. The design and operating principle of machines based on labor bodies in the form of combined screw rotors with a wave surface on a perimeter are shown by the example of the finish-strengthening machine. In the developed classification of machine labor bodies there are presented various forms of their surface on the perimeter.

scholarly journals Effect of Cleaning Treatment on Adhesion of Streptococcus agalactiae to Milking Machine Surfaces

2011 ◽  
Vol 6 (7) ◽  
pp. 1868-1872 ◽  
Author(s):  
Adbeel L. Santos ◽  
Ana Clarissa S. Pires ◽  
José Jorge S. Behaine ◽  
Emiliane A. Araújo ◽  
Nélio J. de Andrade ◽  
...  
Keyword(s):  
Streptococcus Agalactiae ◽  
Milking Machine ◽  
Cleaning Treatment

scholarly journals Shield Effect Of Functional Interlining Fabric

2015 ◽  
Vol 15 (2) ◽  
pp. 93-98 ◽  
Author(s):  
Bosiljka Šaravanja ◽  
Krešimir Malarić ◽  
Tanja Pušić ◽  
Darko Ujević
Keyword(s):  
Electromagnetic Interference ◽  
Electronic Devices ◽  
Scanning Electron Microscopy Micrographs ◽  
Dry Cleaning ◽  
Protective Properties ◽  
Protection Efficiency ◽  
Degree Of Protection ◽  
Functional Textiles ◽  
Before And After ◽  
Cleaning Treatment

AbstractElectromagnetic interference (EMI) have become very serious in a variety of different electronic equipments, such as personal computers (frequency at several GHz), mobile devices (0.9 – 2.4 GHz) and similar. This imposes the need for setting boundaries for EM emission of electric and electronic devices in order to minimize the possibility of interference with radio and wireless communications. Functional textiles can offer protective properties against EM radiation. The aim of this study is to investigate the degree of protection against EM radiation provided by polyamide copper-coated interlining fabric before and after dry cleaning treatment. EM protection efficiency of the interlining functional fabric is explored on both sides at the frequencies of 0.9; 1.8; 2.1 and 2.4 GHz. The results obtained have shown that the interlining fabric has good protective properties against EM radiation, but after dry cleaning, treatment reduction is observed. Scanning electron microscopy micrographs of the interlining surface confirms shield effect decline due to degradation and firing of the copper layers during the process of dry cleaning.

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