scholarly journals Bacterial contamination control mats: a comparative study

1977 ◽  
Vol 79 (1) ◽  
pp. 133-140 ◽  
Author(s):  
H. M. Meddick
Keyword(s):  
Comparative Study ◽  
Working Conditions ◽  
Bacterial Contamination ◽  
Contamination Control ◽  
Different Types

SUMMARYThe ability of six different types of contamination control mats currently in use at the entrances to theatre suites and other clean areas to remove bacteria-carrying particles from theatre trolley wheels was compared. Marked differences in the effectiveness of this property were obtained; and all mats showed some disadvantages. Modification of one of the mats has resulted in improved efficiency under working conditions.

The cycloidal gearbox efficiency for different types of bearings—Sleeves vs. needle bearings

2019 ◽  
Vol 233 (21-22) ◽  
pp. 7401-7411 ◽  
Author(s):  
K Olejarczyk ◽  
M Wikło ◽  
K Kołodziejczyk
Keyword(s):  
Comparative Study ◽  
Working Conditions ◽  
Experimental Results ◽  
Efficiency Calculation ◽  
One Stage ◽  
Different Types ◽  
Braking Torque

A comparative study of a cycloidal gearbox working with a different kind of bearings is presented in the article. Two kinds of the bearings used in the cycloidal gearbox are taken into consideration: sleeves and needle bearings. The theoretical efficiency calculation for both types of the bearing was compared with experimental results. The experiment was performed on a one-stage cycloidal gearbox designed, calculated, and manufactured during the research. The test was made under different working conditions, input speeds, and the braking torques. The results show an increase in the efficiency for the needle bearings compared to sleeves. The value of the efficiency is strictly connected with the braking torque of the gearbox as well as with the velocity. The article shows a very good correlation between calculated efficiency and the efficiency determined during the tests.

Identification of fungal and Bacterial contamination in local and imported chips and juices in Al-Diwaneyah province

2018 ◽  
Vol 9 (SPL1) ◽  
Author(s):  
Saba A Kadhem ◽  
Saba A Kadhem ◽  
Lujain Ebrahim ◽  
Hussain R Mahmood ◽  
Hussain R Mahmood
Keyword(s):  
Bacterial Contamination ◽  
Local Market ◽  
Red Grapes ◽  
Different Types

20 samples were collected from different types oflocally and imported juices, where amples collected from local market in AL-Diwaneyah province.The samples included (10 ) juices (Al-shahir, Teama apple, Natura apple, Tazech orange, Ghalia, Yomme, Our kid, Sunich, Tazaech choctel, Tazaech Red grapes) and (10 ) chips (Popcorn Al-Batal, Chips Dunya, Hendereen, Chips Al –Fawaz,Chips Salwan, Sakr Babil) Trabeesh Mr. Max , Lay's, chips Hala, Popcorn Panda).The biological testes were achieved to detect theBacterial and fungicontamination injuices and chips. The result showed that most products contain Bacteria species with different numbers,where two species Staphilococcus and Streptococcuswere identified in two sample of juice (Sunich, Tazaech choctel),while other sample are non-effected. With chips productes (Chips Al –Fawaz, chips Hala, Popcorn Panda , TrabeeshMr. Max, Popcorn Al-Batal,) were also contaminatedby Staphilococcus and Streptococcus,whereas fungi Actinomyces were isolated from juices and in the same time Pencillium,Fusarium,Aspergillus and Actinomyces were isolated from chips and they showed in must collected sample.

Comparative study of three different types of dental diamond burs

2008 ◽  
Vol 2 (2) ◽  
pp. 77-83 ◽  
Author(s):  
U. Ben-Hanan ◽  
H. Judes ◽  
M. Regev
Keyword(s):  
Comparative Study ◽  
Different Types

Atomization of Liquids by Means of a Rotating Cup

1950 ◽  
Vol 17 (2) ◽  
pp. 145-153 ◽  
Author(s):  
J. O. Hinze ◽  
H. Milborn
Keyword(s):  
Working Conditions ◽  
Drop Size ◽  
Film Formation ◽  
Angular Speed ◽  
The State ◽  
Experimental Results ◽  
Drop Formation ◽  
Dimensionless Groups ◽  
Different Types ◽  
Centrifugal Action

Abstract Liquid, supplied through a stationary tube to the inner part of a rotating cup widening toward a brim, flows viscously in a thin layer toward this brim and is then flung off, all by centrifugal action. The flow within this layer and the disintegration phenomena occurring beyond the brim have been studied, experimentally as well as theoretically. A formula has been derived for the thickness and for the radial velocity of the liquid layer within the cup, which proved to agree reasonably well with experimental results. Three essentially different types of disintegration may take place around and beyond the edge of the cup designated, respectively, by: (a) the state of direct drop formation; (b) the state of ligament formation; and (c) the state of film formation. Which one of these is realized depends upon working conditions. Transition from state (a) into (b), or of state (b) into state (c) is promoted by an increased quantity of supply, an increased angular speed, a decreased diameter of the cup, an increased density, an increased viscosity, and a decreased surface tension of the liquid. The experimental results have been expressed in relationships between relevant dimensionless groups. For the state of ligament formation a semiempirical relationship has been derived between the number of ligaments and dimensionless groups determining the working conditions of the cup. Results of drop-size measurements made for the state of ligament formation as well as for the state of film formation show that atomization by mere rotation of the cup is much more uniform than commonly achieved with pressure atomizers.

Comparative study on molecular mechanism of diabetic myopathy in two different types of streptozotocin-induced diabetic models

Life Sciences ◽  
2021 ◽  
pp. 120183
Author(s):  
Tolulope Peter Saliu ◽  
Thanutchaporn Kumrungsee ◽  
Kenshu Miyata ◽  
Hikaru Tominaga ◽  
Nao Yazawa ◽  
...  
Keyword(s):  
Comparative Study ◽  
Molecular Mechanism ◽  
Different Types

scholarly journals Mercado de trabajo en el deporte y género: un estudio comparativo entre las condiciones de trabajo de las tituladas y los titulados en Ciencias de la Actividad Física y el Deporte por las universidades catalanas = Sport labor market and gender: a comparative study on working conditions of Physical Activity and Sport Science graduates by Catalan universities

2018 ◽  
pp. 195 ◽  
Author(s):  
Marta Pérez-Villalba ◽  
Anna Vilanova ◽  
Susanna Soler Prat
Keyword(s):  
Physical Activity ◽  
Comparative Study ◽  
Working Conditions ◽  
University Graduates ◽  
Sport Science ◽  
Direct Discrimination ◽  
Indirect Discrimination ◽  
Las Mujeres ◽  
Gender Based ◽  
And Gender

Resumen: El presente artículo tiene como objetivo analizar los yacimientos de inserción profesional y las condiciones laborales de las tituladas y los titulados en Ciencias de la Actividad Física y el Deporte (CAFyD) a través de un estudio comparativo entre sexos. Para ello, en el año 2013, se administró un cuestionario a un total de 1.000 personas egresadas en CAFyD por las universidades catalanes. Los resultados indican que no existe una discriminación directa en las condiciones de trabajo, para un mismo cargo mujeres y hombres presentan condiciones similares. En cambio, sí que se ha detectado una discriminación indirecta fruto de la carga social y cultural que afecta a las preferencias de las mujeres a la hora de escoger un determinado yacimiento de inserción.Abstract: This paper aims to analyse the sources of employment for university graduates in Physical Activity and Sport Science through a gender-based comparative study. With this objective, in 2013, a questionnaire was administered to total of 1,000 university graduates in Physical Activity and Sport Science from Catalan universities. The results indicate that there is no direct discrimination in working conditions, for a same position women and men share similar conditions. However, an indirect discrimination has been detected as a result of the social and cultural burden that affects the preferences of women when accessing and choosing a particular insertion field.

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