Learning to calculate spur or helical gears is a difficult task. Despite the vast amount of available literature, the non-graduate students make all kinds of mistakes when they start to study the matter. The group that presents this paper realized that the reasons for these errors is a misunderstanding of factors and the time spent on calculus to obtain the modified coefficients of allowable st...

S suites are a key driver of a hospital’s costs, revenues, and utilization of postoperative resources such as beds. This article describes some commonly occurring operations management problems faced by the managers of surgical suites. For three of these problems, the article also provides preliminary models and possible solution approaches. Its goal is to identify open challenges to spur furth...

Female pheasants may base their choice of mates on the expression of male ornaments such as the red chin wattle and the length of the spurs. Both these ornaments are predicted to be sensitive to access to carotenoids (and vitamins). Moreover, because carotenoids also enhance immune function, it has been suggested that there is a trade-off in the use of carotenoids for ornament expression and im...

Hydrate-bearing sediment cores were retrieved from the Joetsu Basin (off Joetsu city, Niigata Prefecture) at the eastern margin of the Japan Sea during the MD179 gas hydrates cruise onboard R/V Marion Dufresne in June 2010. We measured molecular and stable isotope compositions of volatiles bound in the gas hydrates and headspace gases obtained from sediments to clarify how the minor components ...

Spur dikes are elongated structures extending from banks into rivers that mitigate erosion by forcing the flow away bank. The research on grouped spur is insufficient in comparison with those isolated dikes. Most of studies focus maximum scour depth, omitting bed morphological changes induced local processes. Moreover, as yet, there no established procedure for predicting depth around This stud...