Results 51 to 60 of about 654,606 (207)

Spectral reflectance characteristics, vegetation and leaf area indices for sorghum (Sorghum bicolor L.)

open access: yesJournal of Agrometeorology, 2014
A growing number of studies have focused on evaluating the spectral indices in terms of their sensitivity to vegetation biophysical parameters like leaf area index.
S. A. KADAM, S. D. GORANTIWAR
doaj   +1 more source

Evaluating Roadway Subsurface Drainage Practices: TR-643, 2013 [PDF]

open access: yes, 2013
The bearing capacity and service life of a pavement is affected adversely by the presence of undrained water in the pavement layers. In cold winter climates like in Iowa, this problem is magnified further by the risk of frost damage when water is present.

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Woronora Dam under construction, [1] [picture]

open access: yes, 1941
Part of the album: A selection of photographs of the Metropolitan Water, Sewerage & Drainage Board's works, Sydney, N.S.W. [i.e. New South Wales]; Inscription: "8.5.41"--Bottom right corner.; Condition: Glued to mount.; Also available in an electronic ...
New South Wales. Metropolitan Water, Sewerage and Drainage Board.
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Nepean dam [picture].

open access: yes, 1939
Part of the album: A selection of photographs of the Metropolitan Water, Sewerage & Drainage Board's works, Sydney, N.S.W. [i.e. New South Wales]; Inscription: "3, 13.1.39"--Bottom right corner.; Condition: Glued to mount.; Also available in an ...
New South Wales. Metropolitan Water, Sewerage and Drainage Board.
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Modelling the fluid drainage through primary lymphatic valves

open access: yes, 2013
This study investigates the fluid flow through tissues where lymphatic drainage occurs. Lymphatic drainage relies on two unidirectional valve systems, primary and secondary.
Heppell, Charles
core   +1 more source

Construction of an evaluation system for the effectiveness of rural sewage treatment facilities and empirical research

open access: yesFrontiers in Environmental Science
IntroductionRural domestic sewage treatment is an important starting point to improve the quality of the rural ecological environment, an important part of new rural construction, and an inherent requirement to promote rural economic development.
Yuxiao He   +6 more
doaj   +1 more source

Ryde pumping station [picture]

open access: yes, 1938
Part of the album: A selection of photographs of the Metropolitan Water, Sewerage & Drainage Board's works, Sydney, N.S.W. [i.e. New South Wales]; Inscription: "3, 16.3.38"--Bottom left corner.; Condition: Glued to mount.; Also available in an electronic
New South Wales. Metropolitan Water, Sewerage and Drainage Board.
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Warragamba weir pumping station [picture]

open access: yes, 1941
Part of the album: A selection of photographs of the Metropolitan Water, Sewerage & Drainage Board's works, Sydney, N.S.W. [i.e. New South Wales]; Inscription: "18.2.41"--Bottom left corner.; Condition: Glued to mount.; Also available in an electronic ...
New South Wales. Metropolitan Water, Sewerage and Drainage Board.
core  

Definition of the drainage filter problem [PDF]

open access: yes, 1977
It is common to consider the following: I. Retention of soil particles that may enter the drainage pipe and cause its clogging. For some sensitive structures it is important to prevent settlements due to soil transportation by drainage ...
Zaslavsky, D.
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Energy Efficiency Analysis of Wheat Crop under Different Climate- and Soil-Based Irrigation Schedules

open access: yesProceedings, 2017
Use of energy in the agriculture sector has directly or indirectly been intensified to increase crop production to fulfill the food demand of the growing population. Considering the energy and water scarcity in Pakistan, the present study was carried out
Rubina Ansari   +3 more
doaj   +1 more source

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