Irrigation Canals
Irrigation Canals - Related Videos
06:26
Capturing Flow-weighted Water and Suspended Particulates from Agricultural Canals During Drainage Events
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Cited by 2 •
2017
Nutrients present in particulate form can contribute significantly to the overall loads in agricultural drainage waters. This study describes a novel method to capture flow-weighted water and suspended particulates from farm canal drainage over the entire duration of the drainage event.
01:27
Design Example: Design of an Irrigation Channel
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2025
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
08:38
Testing of all Six Semicircular Canals with Video Head Impulse Test Systems
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Cited by 26 •
2019
This protocol describes how to correctly perform the video head impulse test with two separate test systems commonly used worldwide. Both the 2D and 3D video head impulse test methods are described.
10:30
The C. elegans Excretory Canal as a Model for Intracellular Lumen Morphogenesis and In Vivo Polarized Membrane Biogenesis in a Single Cell: labeling by GFP-fusions, RNAi Interaction Screen and Imaging
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Cited by 6 •
2017
The C. elegans excretory canal is a unique single-cell model for the visual in vivo analysis of de novo polarized membrane biogenesis. This protocol describes a combination of standard genetic/RNAi and imaging approaches, adaptable for the identification and characterization of molecules directing unicellular tubulogenesis, and apical membrane and lumen biogenesis.
03:52
Posterior Semicircular Canal Approach for Inner Ear Gene Delivery in Neonatal Mouse
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Cited by 37 •
2018
In this study, we describe the posterior semicircular canal approach as a reliable method for inner ear gene delivery in neonatal mice. We show that gene delivery through the posterior semicircular canal is able to perfuse the entire inner ear.
FAQs
Hydraulic performance depends on how channel geometry, longitudinal slope, and surface roughness work together. Geometry establishes the channel form available for flow, slope supports movement along the canal, and roughness affects how readily water travels through the open channel. Engineers evaluate these variables together when designing or improving conveyance.
Gravity flow uses a designed slope to move water along the canal, whereas pumping supplies the energy needed to convey water without relying solely on that slope. This distinction affects the system’s operating arrangement because engineers must account for whether water will advance through the canal by its designed slope or through pumping.
Seepage, erosion, and sediment transport represent different but connected design concerns. Seepage can reduce the water that remains available for delivery, erosion can damage channel surfaces, and transported sediment can alter canal conditions. Including all three in analysis helps engineers select suitable geometry, surface treatment, and maintenance approaches for more reliable hydraulic performance.
Gates, weirs, and division structures regulate discharge and route water among fields. Their value lies in converting continuously moving flow into controlled deliveries at distribution points. Engineers therefore consider these structures when organizing water allocation, because canal performance depends not only on conveying water but also on directing flow to separate agricultural areas.
An engineering assessment starts by identifying the water source and agricultural areas to be served, then evaluating channel geometry, designed slope, surface roughness, seepage, erosion, and sediment transport. The design can subsequently incorporate gates, weirs, division structures, lining, maintenance, or automated controls to improve delivery and reduce losses.
Appropriate lining materials can help reduce water losses associated with seepage, while maintenance strategies address conditions that may reduce hydraulic performance. These measures complement the original channel design rather than replace it. Used together, they support more dependable conveyance and distribution, especially where conserving delivered water is an engineering priority.
Automated controls add a controllable operational layer to gates, weirs, and division structures. By helping regulate discharge and distribution, they can improve reliable delivery among fields and contribute to water conservation. Their relevance is greatest in engineering designs that treat operation, not only channel construction, as part of achieving dependable agricultural water management.