scholarly journals Electric resistance as a measure for estimating randomness of binary solid particle system - Sampling technique.

1988 ◽  
Vol 37 (422) ◽  
pp. 1338-1343
Author(s):  
Yukio FUJIHARA ◽  
Motonori ODAKA ◽  
Kiyoshi OHZEKI ◽  
Yoshihide YOSHIMURA
1990 ◽  
Vol 39 (446) ◽  
pp. 1508-1513
Author(s):  
Yasuyuki FUKUDA ◽  
Nozomu HACHISUKA ◽  
Yukio FUJIHARA ◽  
Hisao TAKASE ◽  
Yoshihide YOSHIMURA

1980 ◽  
Vol 22 (5) ◽  
pp. 243-249 ◽  
Author(s):  
T. Greenstein

Numerical values are provided which enable the drag force on the reference spherical fluid or solid particle, and the torque on the reference spherical solid particle, to be computed for the particular case when two spherical particles move in a direction parallel to their line of centres parallel to the axis of a circular cylinder. Results for this motion are also expressed in terms of the ratio of drag forces experienced by (1) the particle of arbitrary shape in a bounded, two particle system, and the particle in an unbounded, two particle system, and (2) the particle in a bounded, two particle system, and the particle moving alone with the same speed and orientation in the same, but unbounded, fluid. The computation furnishes the interaction and wall corrections correctly to the first-order in the ratios of characteristic particle dimension to characteristic distance of the particle from both another particle and from the cylinder wall. The axisymmetric problem was extended to the more general case where the two particles may be placed eccentrically within the cylinder and the torque was also computed. Furthermore, the two particles may be fluid droplets as well as solid particles.


2019 ◽  
Author(s):  
Leonidas Chasapidis ◽  
Anastasios D. Melas ◽  
Apostolos Tsakis ◽  
Dimitrios Zarvalis ◽  
Athanasios Konstandopoulos

1979 ◽  
Vol 13 (5) ◽  
pp. 609-610
Author(s):  
Allen Hoffman ◽  
Roger Sperling ◽  
John Polasek ◽  
Jerry Bullin

Author(s):  
Ayaz Muhammad Khan ◽  
Amber Jamshaid ◽  
Tayyibah Roohi ◽  
Amna Ramzan

Sustainable Development (SD) is a rich, challenging and thought-provoking construct in social sciences. The main purpose of this paper was to identify and explore the role played by primary school teachers in building up the idea of sustainable development (SD) among students. This paper was intended to identify that how a teacher can successfully execute the concept of SD by influencing students’ minds at the primary level. Quantitative survey technique were utilized for data collection. All the primary school teachers of Lahore division comprised the population of the study. Through multistage sampling technique, 352 primary school teachers were selected as participants of the study. A self-developed SD questionnaire incorporating four major factors (teachers’ awareness, pedagogy, curricular and co-curricular activities) with Cronbach’s alpha value = .93 was used to measure the role of teachers in building the sustainability concept among students at primary level. The results indicated a significant mean score difference among SD scores of teachers, sector wise (private and public). Furthermore, the results also reconnoitered the significant difference (p=.04) between the mean scores of female and male teachers in building up the SD concept in students’ minds.


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