関連する実験動画

Updated: Jul 11, 2026

Watershed Planning within a Quantitative Scenario Analysis Framework
12:44

Watershed Planning within a Quantitative Scenario Analysis Framework

Published on: July 24, 2016

ユカタンの発展に対する水文地質学的制約

D O Doehring, J H Butler

    Science (New York, N.Y.)
    |November 15, 1974
    PubMed
    まとめ

    メキシコ メキシコ メキシコ メキシコ メキシコ

    さらに関連する動画

    Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations10:30

    Soil Lysimeter Excavation for Coupled Hydrological, Geochemical, and Microbiological Investigations

    Published on: September 11, 2016

    Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses11:19

    Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses

    Published on: October 21, 2016

    関連する概念動画

    Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

    Design Example: Analyzing Capacity Contours for Flood Risk Assessment

    Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
    Design Example: Design of an Irrigation Channel01:27

    Design Example: Design of an Irrigation Channel

    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...
    Regulation of Water Output01:26

    Regulation of Water Output

    The human body predominantly expels water through the urinary system. On average, an individual generates around 1.5 liters of urine each day. This amount can fluctuate based on how well a person is hydrated, but a critical minimum quantity of urine must be produced to ensure the body's proper functioning. Daily, the kidneys remove 600 to 1200 milliosmoles of dissolved substances, effectively excreting excess minerals and water-soluble toxins such as creatinine, urea, and uric acid from the...
    Water and Mineral Acquisition02:34

    Water and Mineral Acquisition

    Specialized tissues in plant roots have evolved to capture water, minerals, and some ions from the soil. Roots exhibit a variety of branching patterns that facilitate this process. The outermost root cells have specialized structures called root hairs that increase the root surface, thus increasing soil contact. Water can passively cross into roots, as the concentration of water in the soil is higher than that of the root tissue. Minerals, in contrast, are actively transported into root cells.
    Design Example: Maintaining Level of an Embankment01:19

    Design Example: Maintaining Level of an Embankment

    Constructing a roadway embankment over uneven terrain requires precise leveling to ensure stability and proper drainage. Surveyors use a leveling instrument and staff to calculate ground elevations and determine the required fill material at each point along the embankment alignment.The process begins by positioning a leveling instrument near a benchmark with a known elevation. A backsight reading establishes the instrument height, which serves as a reference for subsequent measurements. A...
    Design Example: Creating a Hydraulic Model of a Dam Spillway01:21

    Design Example: Creating a Hydraulic Model of a Dam Spillway

    Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.