Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Fatigue01:21

Fatigue

865
Fatigue occurs when materials rupture under repeated or fluctuating loads, even at stress levels far below their static breaking strength. It typically results in brittle failure, even for ductile materials. It is a critical consideration in designing machines and structural components subjected to repetitive or varying loads. The nature of these loadings can range from fluctuating loads like unbalanced pump impellers causing vibrations to repeatedly bending a thin steel rod wire back and forth...
865
Muscle Recovery and Fatigue01:24

Muscle Recovery and Fatigue

4.3K
Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
4.3K
Fatigue Strength of Concrete01:22

Fatigue Strength of Concrete

596
Fatigue, in the context of materials science and engineering, refers to the weakening or failure of a material caused by repeatedly applied loads, even if these loads are below the strength limit of the material. Fatigue strength in concrete is a critical property that influences its durability and longevity. Concrete can fail in two ways due to fatigue. Static fatigue or creep rupture occurs under a constant load or one that increases slowly. The other failure mode is due to cyclical or...
596
Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)01:20

Spin–Spin Coupling: Two-Bond Coupling (Geminal Coupling)

1.7K
Two NMR-active nuclei bonded to a central atom can be involved in geminal or two-bond coupling. Geminal coupling is commonly seen between diastereotopic protons in chiral molecules and unsymmetrical alkenes, among others.
The central atom need not be NMR-active because its electrons are affected by the electron polarization of the spin-active atoms. However, spin information is transmitted less effectively than in one-bond coupling, and 2J values are usually weaker than 1J values. The energy of...
1.7K
Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)01:22

Spin–Spin Coupling: Three-Bond Coupling (Vicinal Coupling)

1.5K
Vicinal or three-bond coupling is commonly observed between protons attached to adjacent carbons. Here, nuclear spin information is primarily transferred via electron spin interactions between adjacent C‑H bond orbitals. This generally favors the antiparallel arrangement of spins, so 3J values are usually positive.
The extent of coupling depends on the C‑C bond length, the two H‑C‑C angles, any electron-withdrawing substituents, and the dihedral angle between the involved orbitals. The...
1.5K
G-protein Coupled Receptors01:21

G-protein Coupled Receptors

132.2K
G-protein coupled receptors are ligand binding receptors that indirectly affect changes in the cell. The actual receptor is a single polypeptide that transverses the cell membrane seven times creating intracellular and extracellular loops. The extracellular loops create a ligand specific pocket which binds to neurotransmitters or hormones. The intracellular loops holds onto the G-protein.
132.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Prognostic significance of IKZF1 alterations in acute B-lymphoblastic leukemia and the choice of transplantation strategy].

Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi·2026
Same author

[Application of blinatumomab in adult acute B-lymphoblastic leukemia: a comprehensive strategy from remission induction to post-transplantation maintenance].

Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi·2026
Same author

Improved radiation resistance in metals via adaptive martensitic transformation.

Nature communications·2025
Same author

Taming harmful bursts and heat flux in high-confinement tokamak plasmas.

Nature communications·2025
Same author

[Effects of mitochondrial transplantation on full-thickness skin defects in diabetic rats].

Zhonghua shao shang yu chuang mian xiu fu za zhi·2025
Same author

[Research progress of mesenchymal stem cell exosomes in the treatment of intraventricular hemorrhage in premature infants].

Zhonghua er ke za zhi = Chinese journal of pediatrics·2025

Related Experiment Video

Updated: Feb 15, 2026

Measuring the Motor Aspect of Cancer-Related Fatigue using a Handheld Dynamometer
07:22

Measuring the Motor Aspect of Cancer-Related Fatigue using a Handheld Dynamometer

Published on: February 20, 2020

6.3K

Note: Motor-piezoelectricity coupling driven high temperature fatigue device.

Z C Ma1, X J Du1, H W Zhao1

  • 1School of Mechanical Science and Engineering, Jilin University, Changchun 130025, China.

The Review of Scientific Instruments
|February 3, 2018
PubMed
Summary
This summary is machine-generated.

A new high-temperature fatigue testing device was developed, capable of simultaneous servo motor and piezoelectric actuator control for advanced material analysis. This high-temperature fatigue device enables multimodal testing up to 1200°C.

More Related Videos

Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy
07:44

Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy

Published on: April 27, 2016

10.1K
Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics
10:39

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics

Published on: August 5, 2020

7.5K

Related Experiment Videos

Last Updated: Feb 15, 2026

Measuring the Motor Aspect of Cancer-Related Fatigue using a Handheld Dynamometer
07:22

Measuring the Motor Aspect of Cancer-Related Fatigue using a Handheld Dynamometer

Published on: February 20, 2020

6.3K
Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy
07:44

Characterization of Full Set Material Constants and Their Temperature Dependence for Piezoelectric Materials Using Resonant Ultrasound Spectroscopy

Published on: April 27, 2016

10.1K
Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics
10:39

Fabrication and Characterization of Thickness Mode Piezoelectric Devices for Atomization and Acoustofluidics

Published on: August 5, 2020

7.5K

Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Tribology

Background:

  • High-temperature fatigue testing is crucial for understanding material behavior in extreme environments.
  • Existing devices often lack the capability for simultaneous multimodal loading at elevated temperatures.
  • Advanced alloys require sophisticated testing methods to evaluate their performance limits.

Purpose of the Study:

  • To design and evaluate a novel high-temperature fatigue testing device.
  • To enable simultaneous servo motor and piezoelectric actuator driven loading.
  • To perform multimodal fatigue tests with combined static and dynamic loads.

Main Methods:

  • The device integrates monotonic and cyclic loading capabilities.
  • It features a maximum tensile load of 1800 N and a driving frequency of 50 Hz.
  • The maximum service temperature is 1200 °C, allowing tests from room temperature (RT) to 1100 °C.

Main Results:

  • The device successfully achieved multimodal fatigue tests with arbitrary static and dynamic load combinations.
  • It demonstrated the capability to investigate coupling mechanical behaviors under tensile and tensile-fatigue loading.
  • Feasibility was verified through tests on UM Co50 alloys at temperatures up to 1100 °C.

Conclusions:

  • The developed high-temperature fatigue device offers a versatile platform for advanced material characterization.
  • It enables novel multimodal fatigue testing at extreme temperatures.
  • The device is suitable for investigating complex mechanical behaviors of materials like UM Co50 alloys.