نتایج جستجو برای: local scouring

تعداد نتایج: 532532  

Journal: :Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 2014

Journal: :آب و توسعه پایدار 0
حسین شریعتی سعید رضا خداشناس

scouring is the removal of sediment particles resulted from variations of flow pattern. local scour is considered among the reasons of instability and ultimately failure of bridges. during the past decades, different methods were proposed against local scour at bridge piers. these methods can be broadly classified into two categories: flow-altering and bed-armoring methods. each method can be c...

کوچک زاده, صلاح ,

Bridge abutments are usually located in the floodplain zone of rivers where velocity and shear stress are not uniformly distributed. The influence of channel geometry and lateral momentum transfer in compound flow field on the scouring phenomenon has not been fully investigated and understood yet. The impact of lateral momentum transfer on the local scour at abutments terminating in the floodpl...

Journal: :Nature 1964

2017
Ian Ohnstad

Calf mortality is highest during the first six months of life. Added to this is the losses to the industry caused by around 50,000 breeding cows (1.4% of the U.K total) dying at calving, mainly as a result of dystocia. Scouring is the most common disease in young calves and, as a result, is the greatest single cause of death in calves, accounting for almost 50% of all calf deaths. Scouring in c...

2008
P. B. AGRAWAL V. A. NIERSTRASZ G. H. BOUWHUIS M. M. C. G. WARMOESKERKEN

This manuscript describes the potential of a cutinase from the fungus Fusarium solani pisi for cotton wax degradation in order to design an efficient low temperature scouring process. The main characteristics, relevant to cotton wax removal with F. solani pisi cutinase are given. The additive effect of cutinase on pectinase was investigated and optimum incubation conditions were determined. Com...

Journal: :Veterinary parasitology 2008
Robert Barigye Neil W Dyer Teresa K Newell Margaret L Khaitsa James M Trout Monica Santin Ronald Fayer

Despite many reports on the shedding of Giardia parasites by scouring calves, the role of Giardia as a cause of calf diarrhea is still controversial. To elucidate the role of Giardia duodenalis in calf scours, diagnostic samples from 189 scouring calves were tested by different assays during a 1-year-study period. Giardia antigens were detected in 22/189 scouring calves by a fecal-based enzyme-...

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