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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...
Plane Potential Flows01:23

Plane Potential Flows

Plane potential flows simplify fluid motion by assuming the fluid to be irrotational and incompressible. These characteristics allow these flows to be described by a velocity potential function, ϕ, representing the flow speed in a given direction, and a stream function, ψ, that visualizes the flow path, both governed by Laplace's equation. These parameters help in estimating flow patterns, velocity distributions, and pressure fields around various hydraulic structures.
Uniform Flow
Uniform flow...
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...
Field Application of Global Positioning System01:28

Field Application of Global Positioning System

The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
Applications of GIS: Disaster Management and Emergency Response01:29

Applications of GIS: Disaster Management and Emergency Response

Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
Design Example: Alignment of a Road Line Using GIS01:17

Design Example: Alignment of a Road Line Using GIS

The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...

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関連する実験動画

Updated: Jun 20, 2026

Testing Protozoacidal Activity of Ligand-lytic Peptides Against Termite Gut Protozoa in vitro (Protozoa Culture) and in vivo (Microinjection into Termite Hindgut)
17:36

Testing Protozoacidal Activity of Ligand-lytic Peptides Against Termite Gut Protozoa in vitro (Protozoa Culture) and in vivo (Microinjection into Termite Hindgut)

Published on: December 30, 2010

長期にわたる視覚的欠乏症の後,サルで自己維持された視覚的刺激.

R H WENDT, D V LINDSLEY, W R ADEY

    Science (New York, N.Y.)
    |January 25, 1963
    PubMed
    まとめ
    この要約は機械生成です。

    パターン化された視覚的刺激を奪われた新生児の猿は,パターンがない光でさえも,極端で飽きない欲求を示した. これは,発達初期に視覚パターン処理の根本的な必要性を示唆しています.

    キーワード:
    学ぶこと 学ぶことライトライト ライトライト感覚的欠乏症 感覚的欠乏症ビジョンはビジョンです.

    さらに関連する動画

    Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation
    10:05

    Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation

    Published on: July 4, 2014

    Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
    07:14

    Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

    Published on: May 1, 2018

    関連する実験動画

    Last Updated: Jun 20, 2026

    Testing Protozoacidal Activity of Ligand-lytic Peptides Against Termite Gut Protozoa in vitro (Protozoa Culture) and in vivo (Microinjection into Termite Hindgut)
    17:36

    Testing Protozoacidal Activity of Ligand-lytic Peptides Against Termite Gut Protozoa in vitro (Protozoa Culture) and in vivo (Microinjection into Termite Hindgut)

    Published on: December 30, 2010

    Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation
    10:05

    Integrated Field Lysimetry and Porewater Sampling for Evaluation of Chemical Mobility in Soils and Established Vegetation

    Published on: July 4, 2014

    Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar
    07:14

    Tracking Infiltration Front Depth Using Time-lapse Multi-offset Gathers Collected with Array Antenna Ground Penetrating Radar

    Published on: May 1, 2018

    科学分野:

    • 神経科学は神経科学である.
    • 靈長類の研究は,霊長類の研究である.
    • ビジュアル開発 ビジュアル開発

    背景:

    • 早期の視覚体験は,正常な脳の発達に不可欠です.
    • 感覚剥奪の研究は,限られた刺激が神経経路に与える影響を調査しています.

    研究 の 目的:

    • 新生霊長類における長時間視力喪失の行動効果を調査する.
    • 長期間の暗闇の後,視覚的刺激に対する動機を評価する.

    主な方法:

    • 新生猿は16ヶ月間,暗闇の中で育てられました.
    • 被験者は1日1時間,パターンのない光の被曝を受けた.
    • パターンのない光の自己投与を可能にするため,レバープレスタスクが使用されました.

    主要な成果:

    • 類人猿は,非常に高く,継続的にレバーを押す割合を示した.
    • パターンのない光に対する反応は,対照動物よりも有意に大きかった.
    • これは,視覚的な入力に対する強い,満たされていない動機を示しています.

    結論:

    • 長期にわたる視覚的欠乏は,視覚的刺激への強い衝動につながります.
    • 結果は,正常な発達のためのパターン化された視覚入力の大切さを強調しています.
    • この研究は,行動の形成における初期の感覚経験の重要な役割を強調しています.