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طبعات أخرى - عرض جميع المقتطفات
acreage acres Agra Canal Akola anicut applied average Berar Bombay bottom branch breadth calculated catchment area centimetres channel CM CM CN CN coefficient crops cubic feet cubic foot diameter distributaries drainage embankments engineer evaporation fall feet per second float flood discharge formula gallons Ganges Canal gauging given head height hence humidity hydraulic inches India irrigation Jamna Canal July Kalerun Kaveri Kistna Lago Maggiore land length lower Madras Madras Presidency main canal Maisur Maize mansun masonry maximum mean velocity measures miles long module observations obtained OO OO OO ordinary orifice Orissa overfall pipes pressure quantity rainfall rectangular reduced reservoir rH rH rice river sectional area sill slope sluices square miles supply Table tank Total tube varying velocity of discharge vertical water surface water-rate weir Western Jamna width
الصفحة 55 - ... although one clause of a sentence in it, read by itself, might be supposed to do so. The passage is to be found in their work at p. 286. They begin by saying, that their experimental observations detailed in their previous pages " prove that even in a perfectly calm day there is a strong resistance to the motion of the water at the surface as well as at the bottom," and that this resistance at the surface " is not wholly or even mainly caused by friction against the air.
الصفحة 14 - The rise of ordinary floods is from 5 to 7 feet in 24 hours only, and the maximum is 50 feet above coldweather level.
الصفحة lxvii - ... rivers and canals in bad order and regimen, overgrown with vegetation and strewn with stones or detritus of any sort.
الصفحة 91 - ... weirs, and escapes, yielding a revenue of £1 500 000, and having a capital sunk in them of 15 millions sterling ; yet in 1853 not one new tank had been made by the English, while a very large proportion of them had been allowed to fall into disrepair. The Viranam tank, a very ancient work, in Tanjor, has an area of 35 square miles, and an embankment 12 miles long; it is still in full operation, and secures an annual revenue of £ll 453.
الصفحة 148 - Diameters of plug -0o •0585 -0912 •1211 •1374 Depths from water surface 1 •26 1-90 2-71 3-71 Diameters of plug -1480 •1554 •1610 -1653 The principle being that the velocity of discharge through an orifice varies with the square foot of the head of water ; thus, taking R r to represent the radii of the orifice and plug respectively, the discharge per second H being the head of water, the value of the experimental coefficient, o, being for this case deduced, from a series of experiments...