Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Introduction to Structures01:30

Introduction to Structures

A structure is defined as a system of interconnected members designed to support or transfer forces and successfully withstand the loads acting on them. The internal forces of a structure can be determined by decomposing the structure and analyzing the free-body diagrams of the individual members or of a combination of members. This helps in understanding the structural elements' behavior and ensuring that the structure is stable and can withstand the subjected loads.
There are three main...
Frames01:30

Frames

Frames are essential components of various mechanical and structural systems used daily. These structures are known for their stability and ability to bear heavy loads. A frame is constructed using two-force and multi-force members, interconnected using pin joints. In contrast, trusses are made entirely of two-force members.
Frames are versatile and widely used in various applications such as structural supports for beams and columns, automobile chassis construction, and in the construction...
Frames: Problem Solving II01:26

Frames: Problem Solving II

Consider a hydraulic hoist supporting a load of 1 kN. Assuming a simplified schematic representation of this frame structure, the force acting on BD and BF members can be determined.
Machines: Problem Solving II01:30

Machines: Problem Solving II

Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. Consider a lifting tong carrying a 100 kg load. It comprises movable sections DAF and CBG linked together with member AB.
Indeterminate Structure01:18

Indeterminate Structure

Indeterminate structures refer to structures where internal forces and reactions cannot be determined using only the equations of static equilibrium.  Indeterminate structures have more unknown forces and reaction forces than equations of static equilibrium that can be used to determine them. Indeterminate structures are often used in engineering to create complex, efficient, and aesthetically pleasing structures. There are various types of indeterminate structures used in engineering and some...
Structural Steel Products01:24

Structural Steel Products

Structural steel products are created within a structural mill. The process begins with a beam blank that is reheated and then fed through a series of rollers. These rollers progressively shape the metal into its final form. Adjusting the spacings between the rollers allows for the production of different sections with the same nominal dimensions.
Once shaped, the steel's final form emerges as a continuous length, which is then segmented by a hot saw into manageable pieces. These segments are...

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Analysis of factors influencing the blood levels and activities of tissue-type plasminogen activator (t-PA).

Clinical hemorheology and microcirculation·2004
Same author

Major form of NUP98/HOXC11 fusion in adult AML with t(11;12)(p15;q13) translocation exhibits aberrant trans-regulatory activity.

Leukemia·2003
Same author

[Fluoride-oxide glass for high efficiency upconversion from IR to green].

Guang pu xue yu guang pu fen xi = Guang pu·2003
Same author

[In situ IR study of the reaction behavior of clusters [VnCr3-n (mu 3-O) (mu-O2CCH3)6(THF)3]X[n = 0-3, X = Cl-, ClO4-, (VO5)0.5-] and [VnFe3-n(mu 3-O) (mu-O2CCH3)6(THF)3]X(n = 0-3, X = Cl-) in nitrogen atmosphere].

Guang pu xue yu guang pu fen xi = Guang pu·2003
Same author

[In situ IR study of the reaction behavior of transition metal oxides-propionic acid system, Fe2Cr(mu 3-O) (mu-O2CC2H5)6(H2O)3Cl.xH2O and Cr3 (mu 3-O) (mu-O2CC2H5)6(H2O)3NO3.xH2O].

Guang pu xue yu guang pu fen xi = Guang pu·2003
Same author

[Monte Carlo simulation of FCS in a laser gradient field].

Guang pu xue yu guang pu fen xi = Guang pu·2003

相关实验视频

Updated: Jun 21, 2026

Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

从大型有机和无机二次建筑单元组装金属有机框架:复杂结构的新例子和简化原则.

J Kim1, B Chen, T M Reineke

  • 1Materials Design and Discovery Group, Department of Chemistry, University of Michigan, Ann Arbor, MI 48109-1055, USA.

Journal of the American Chemical Society
|August 23, 2001
PubMed
概括

二级建筑单元 (SBU) 方法简化了复杂的金属有机框架 (MOF) 分析. 这项研究详细介绍了九个新的MOF,揭示了由各种SBU组成的多样化的网络结构.

更多相关视频

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks
05:26

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks

Published on: February 10, 2023

Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
07:14

Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

相关实验视频

Last Updated: Jun 21, 2026

Synthesis and Characterization of Functionalized Metal-organic Frameworks
11:27

Synthesis and Characterization of Functionalized Metal-organic Frameworks

Published on: September 5, 2014

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks
05:26

Synthesis of Single-Crystalline Core-Shell Metal-Organic Frameworks

Published on: February 10, 2023

Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
07:14

Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers

Published on: May 12, 2023

科学领域:

  • 材料科学 材料科学 材料科学
  • 晶体学 晶体学是指结晶学.
  • 化学 化学 化学

背景情况:

  • 金属有机框架 (MOF) 是先进的多孔材料,具有多样化的应用.
  • 分析复杂的MOF结构可能具有挑战性.
  • 二级建筑单元 (SBU) 概念为了解MOF拓提供了一个系统的方法.

研究的目的:

  • 证明SBU方法在合理化复杂的MOF晶体结构中的实用性.
  • 报告9个新的MOF的合成和表征.
  • 分析不同SBU类型及其连接性产生的结构多样性.

主要方法:

  • 单晶X射线衍射被用于详细的结构特征九个新的MOFs.
  • 应用了二级建筑单元 (SBU) 概念来分析和分类观察到的框架拓.
  • 系统分析SBU连接和由此产生的网络结构.

主要成果:

  • 合成了9种新的MOF (MOF-31到MOF-39),并对其结构进行了表征.
  • 识别和分析了各种SBU (四面体,方形,八面体,三角形,三角形镜).
  • 观察到新的网络结构和已知的拓 (钻石,Al,Ga,PtS,),展示了SBU组装的多功能性.

结论:

  • SBU方法有效地合理化了MOFs复杂的晶体结构.
  • 该研究介绍了新的MOF结构,并扩大了对基于SBU的框架组装的理解.
  • 这项工作为合理设计具有所需性质的新MOF提供了有价值的框架.