A lung function study was carried out to determine the relative effect of rice husk and saw dust on mill workers. The study consisted of 195 subjects of which 56 rice mill workers, 71 saw mill workers and 68 controls of similar age, sex and socio-economic condition. FVC was significantly reduced in saw-mill workers compared to both the controls and rice mill workers. Both FEV1 and PEFR/min were...

The purpose of this study was to compare roller pump and centrifugal pump technologies in routine adult open-heart operations to demonstrate the usefulness of applying a proven method of uniform risk stratification (outcomes research). Objective and readily available preoperative patient data was collected retrospectively on 102 non-randomized and consecutive adult open-heart operations. Group ...

A hydraulic jump is the sudden transition from a high-velocity impinging flow into a turbulent roller in an open channel. Substantial amounts of air are entrapped at the impingement point, and significant free-surface fluctuations take place above the roller. In the present study, some physical modelling was conducted in a relatively large sized facility. The flow conditions included a wide ran...

The purpose of this study was to investigate whether eight weeks of aerobic high-intensity interval training with roller ski is effective in cross-country skiers. 10 male (age, 18.28 ± 2.1 years; height, 171.26 ± 4.12 cm; weight 61.39 ± 6.28 kg) and 8 female (age, 16.05 ± 0.3 years; height, 158.3 ± 6.47 cm; weight, 49.34 ± 0.7 kg) junior cross country skiers completed the study. All skiers perf...

Mill scale is one of the byproducts which produced during processing steel. It rich in iron (≥70%), has lower impurities and a stable chemical composition. The present research studies effects partial replacement ore with different proportions mill on sinter charge. results this study showed that an increase substitution by at 3%, rate production increases from 21.94 to 25.50 ton/m2/day (16.2%)...

OBJECTIVES To examine skaters' beliefs about risk factors related to roller derby injuries. DESIGN Qualitative study based on semistructured focus group discussions with female roller derby skaters. METHODS Skaters with varying levels of experience and injury history were invited to participate in focus group discussions. Semistructured focus group discussions were based on the question 'Wh...

We developed and validated a mitral valve orifice method for Doppler cardiac output determination. In 15 open-chest dogs, cardiac output was controlled and measured by a roller pump interposed between the right atrium and pulmonary artery as a right-heart bypass. Left heart flows were measured in the open-chest dog model by Doppler measurements at the mitral valve orifice and compared not only ...

Modeling of wet stirred media mill processes is challenging since it requires the simultaneous modeling complex multiphysics in interactions between grinding media, moving internal agitator elements, and fluid. In present study, a model an HIG5 pilot vertical with nominal power 7.5 kW developed. The based on particle-based coupled solver approach, where fluid modeled particle finite element met...

A stable line of baby hamster kidney cells for use in the production of, and subsequent purification of, foot-and-mouth disease virus (FMDV) was grown in large quantities on the cylindrical surfaces of 2-liter Baxter bottles. The bottles, in round wire cages, were rotated on a three-tiered roller mill. The cells retained their rapid growth characteristics and susceptibility to FMDV in a tris(hy...