Minutes of Proceedings of the Institution of Civil Engineers, Volume 164The Institution, 1906 - Civil engineering Vols. 39-204 (1874/75-1916/17) have a section 3 containing "Abstracts of papers in foreign transactions and periodicals" (title varies); issued separately, 1919-37, as the institution's Engineering abstracts from the current periodical literature of engineering and applied science, published outside the United Kingdom. |
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Results 1-5 of 63
Page 50
... practically directly proportional to the population per acre . After the time of concentration has been exceeded , in districts not entirely impermeable , the impermeable percentage gradually increases with the duration of the rainfall ...
... practically directly proportional to the population per acre . After the time of concentration has been exceeded , in districts not entirely impermeable , the impermeable percentage gradually increases with the duration of the rainfall ...
Page 54
... practically disappears , as the decreased hydraulic radius under the plate counterbalances the extra velocity of approach of the storm - volume . The advantages of type ( 3 ) over types ( 1 ) and ( 2 ) are apparent . Accurate separation ...
... practically disappears , as the decreased hydraulic radius under the plate counterbalances the extra velocity of approach of the storm - volume . The advantages of type ( 3 ) over types ( 1 ) and ( 2 ) are apparent . Accurate separation ...
Page 70
... practically not at all dialysable . Their later experiments , however , pointed to sources of error in the previous ones , and proved that only a small fraction of the total matter was dialysable , as appeared from analysis of the ...
... practically not at all dialysable . Their later experiments , however , pointed to sources of error in the previous ones , and proved that only a small fraction of the total matter was dialysable , as appeared from analysis of the ...
Page 76
... practically soluble into a particulate condition . In the same Table are given , by way of contrast , the average results of forty - three series of samples of the final effluent from triple - contact beds , for the period April ...
... practically soluble into a particulate condition . In the same Table are given , by way of contrast , the average results of forty - three series of samples of the final effluent from triple - contact beds , for the period April ...
Page 81
... practically limited to areas which were , to all intents and purposes , solid ; and that these blocked areas were separated by others which were relatively free from solid matters . An estimation of the amount of solids retained in the ...
... practically limited to areas which were , to all intents and purposes , solid ; and that these blocked areas were separated by others which were relatively free from solid matters . An estimation of the amount of solids retained in the ...
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Common terms and phrases
5-foot 6-inch gauge adopted albuminoid Author average bacterial action Balancing Account beds Bengal Boilers Account break of gauge bridge broad-gauge C.E. VOL capacity capital carried cent colloidal matter connection considerable construction contact-beds conversion cost cubic feet curve cut-off cylinders deposition designed discharge district double dry-weather flow efficiency effluent electric engine experiments feet 6 inches feet per minute filters gallons gauge lines given Government gradient Hampton horse-power hydrolytic tank I.HP increase India Indian railways length liquid load locomotive maximum mean pressure Messrs metre gauge metre-gauge lines miles millimetres narrow-gauge nitrogen obtained organic matter Oudh Paper passengers percentage piston-speed practically Proceedings Inst quantity rails rainfall revolutions per minute River Rohilkhand rolling stock Rupees septic tank sewage sewer sludge solids speed square inch standard standard-gauge lines steam storm-water surface suspended matter Table tion tons track traffic transhipment velocity
Popular passages
Page 44 - From investigation of results obtained, the following conclusions are established : — (1) That the storm- water discharge from any defined district is directly proportional to the percentage of impermeable area comprised in it. (2) That, subject to a time allowance being added for the entrance of the rain into the system, the discharge of storm-water from underground channels is proportional to the aggregate rainfall during the time of concentration of the water through the conduits, from the extreme...
Page 70 - The pectising substance appears to hasten merely an impending change. Even while fluid, a colloid may alter sensibly, from colourless becoming opalescent ; and while pectous, the degree of hydration may become reduced from internal change. The gradual progress of alteration in the colloid effect by the agency of time is an investigation yet to be entered upon.
Page 70 - The fluid colloid becomes pectous (curdled) and insoluble by contact with certain other substances, without combining with these substances, and often under the influence of time alone. The pectizing substance appears to hasten merely an impending change. Even while fluid, a colloid may alter sensibly, from colorless becoming opalescent ; and while pectous, the degree of hydration may become reduced from internal change.
Page 51 - ... originally intended only for calculations of watershed discharge. The great divergence of the results obtained by the use of this formula is not likely to create surprise when its construction is compared with recent experience. Mr. Emil Kuichling was the first to recognise that the rainfall intensity varies with the extent of the area, and the importance of the time of concentration.
Page 152 - ... many years, and the accumulated organic matter has undergone this long-continued bacterial action that is always taking place in such filters, most of this matter is found to be stable in nature and difficult to oxidize. Undoubtedly a certain portion of it is as stable as humus; in other words, as stable as soil nitrogen which remains year after year at practically the same point unless exhausted by severe cropping.
Page 410 - Engineers, of the Institution of Mechanical Engineers, and of the Institution of Naval Architects.
Page 43 - These relationships can be expressed as a formula which is known as the Chezy formula. In it V is the mean velocity in feet per second; R is the hydraulic radius, or area of the stream divided by the wetted perimeter; s is the slope of the hydraulic grade line or, in open channels, the slope of the water surface; C is a coefficient. Since the effects of roughness, velocity, and other factors are only approximate, the value of C is not constant but varies...
Page 45 - Q denote the discharge of storm-water in cubic feet per minute ; t ,, ,, time of concentration in minutes (ie, time of flow through the longest line of sewers in the district plus entrance allowance) ; r ,, ,, total rainfall in inches during t (this can be obtained from curves similar to those given in Fig.
Page 403 - to carry on the work of the Royal College of Science and the Royal School of Mines...
Page 50 - ... is of no great use excepting for "entrance time" computations. In fact, surface slope, which is such an important factor in many of the rules, appears to be included in an attempt to frame a formula from models originally intended only for calculations of watershed discharge. The great divergence of the results obtained by the use of this formula is not likely to create surprise when its construction is compared with recent experience. Mr. Emil Kuichling...