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関連する概念動画

Volatilization01:10

Volatilization

6.2K
Volatilization gravimetry is an analytical technique that measures the mass lost due to the volatilization of the substance. This technique is used to estimate the amount of volatile material in a sample. To perform this method, heat a known amount of the sample to a high temperature in a crucible or other suitable vessel. The volatile substance in the sample evaporates, and the vapor is completely expelled from the crucible either by heating the sample or bubbling a stream of inert gas through...
6.2K
Survey Safety01:28

Survey Safety

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Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
410
Household Wiring And Electrical Safety01:13

Household Wiring And Electrical Safety

1.7K
Companies that supply power to most modern households use three conductors, typically called a three-wire line. While one is neutral, the other two are both at 120 V but with opposite polarity, giving a voltage of 240 V between them. With a three-wire line, high-power appliances that require 240 V, such as electric stoves and clothes dryers, are linked between the two hot lines. 120 V appliances can be connected between the neutral and either of the hot lines. The neutral side, which is always...
1.7K
Structures of Solids02:22

Structures of Solids

17.9K
Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
17.9K
Structural Isomerism02:34

Structural Isomerism

21.7K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.7K
Structure of Lipids03:38

Structure of Lipids

99.0K
Lipids include a diverse group of compounds that are largely nonpolar in nature. This is because they are hydrocarbons that include mostly nonpolar carbon-carbon or carbon-hydrogen bonds. Non-polar molecules are hydrophobic (“water fearing”), or insoluble in water. Lipids perform many different functions in a cell. Cells store energy for long-term use in the form of fats. Lipids also provide insulation from the environment for plants and animals. For example, they help keep aquatic...
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関連する実験動画

Updated: Feb 7, 2026

Measuring Volatile and Non-volatile Antifungal Activity of Biocontrol Products
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Measuring Volatile and Non-volatile Antifungal Activity of Biocontrol Products

Published on: December 5, 2020

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激動の世紀に向けた構造的安全性の再考

Gang Xu1, Tong Guo1, Ai-Qun Li1

  • 1Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University, Nanjing 211189, China.

Fundamental research
|February 6, 2026
PubMed
まとめ
この要約は機械生成です。

構造設計は、気候変動に対応するために、時代遅れの仮定を超えて進化しなければならない。レジリエンス、適応性、持続可能性を優先することは、将来のインフラ開発と生存にとって極めて重要である。

キーワード:
炭素排出量気候変動への適応ライフサイクルエンジニアリング複合災害への耐性災害後の復旧構造的持続可能性

さらに関連する動画

Rapid Collection of Floral Fragrance Volatiles using a Headspace Volatile Collection Technique for GC-MS Thermal Desorption Sampling
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Rapid Collection of Floral Fragrance Volatiles using a Headspace Volatile Collection Technique for GC-MS Thermal Desorption Sampling

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Fruit Volatile Analysis Using an Electronic Nose
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Fruit Volatile Analysis Using an Electronic Nose

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関連する実験動画

Last Updated: Feb 7, 2026

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06:47

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Rapid Collection of Floral Fragrance Volatiles using a Headspace Volatile Collection Technique for GC-MS Thermal Desorption Sampling
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Fruit Volatile Analysis Using an Electronic Nose
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科学分野:

  • 構造工学
  • 気候変動への対応力
  • インフラストラクチャ設計

背景:

  • 現在の構造設計フレームワークは、孤立したハザード、材料劣化、過剰設計による防止に関する時代遅れの仮定に依存している。
  • 加速する気候変動の変動性、連鎖的な災害、炭素制約により、従来ののアプローチは実行不可能になっている。
  • 現代のインフラストラクチャは、既存の基準では予期しない複合リスク(例:地震と洪水、熱誘発腐食の連鎖)に直面している。

研究 の 目的:

  • 構造的安全性の根本的な再定義を提唱すること。
  • 抵抗からレジリエンスへ、剛性から適応性へ、過剰から持続可能性へと焦点を移すこと。
  • 構造工学を、レジリエンスエンジニアリング、災害リスク軽減、適応型インフラストラクチャの新たなパラダイムに合わせること。

主な方法:

  • システム思考、堅牢性、不確実性下での長期的な機能性を重視すること。
  • AI駆動型診断やライフサイクルモデリングフレームワークなどの革新的なツールの統合。
  • 新しい材料(耐久性、修理可能、低炭素)と定量化可能な指標(回復期間、具体化された炭素、残存機能)の開発。

主要な成果:

  • 従来の安全アプローチは、しばしば炭素集約型の建設を伴い、環境危機を悪化させる。
  • 構造的安全性の再考は、レジリエンスエンジニアリングと適応設計の原則に沿ったものである。
  • 本研究は、適応性と持続可能性に焦点を当てた構造的安全性の新しいフレームワークを提案する。

結論:

  • 構造エンジニアは、気候に対応し、社会的に応答性の高いインフラストラクチャの戦略家になる必要がある。
  • 次世代の構造設計は、インフラストラクチャが機能し、回復し、再生することを保証しなければならない。
  • 激動の世紀に耐えうるインフラストラクチャを作成するには、パラダイムシフトが必要である。