The radioactive atom of an isotope has the same chemical properties as its isotope and can replace the position of its isotope in a compound, but it is radioactive and changes in t
Jul 04, 2022
The isotopic tracer technique is a technique that uses radioisotopes or enriched rare stable nuclides as tracers to study scientific problems in various fields of physics, chemistr
Foam inhibitor is a very effective surface active substance. Its main ingredient is dimethyl polysiloxane, and its pH value is 4~5. Its role is to suppress excessive foam formation
Jul 01, 2022
polymerization inhibitor is an industrial auxiliary, usually used to prevent the progress of polymerization. The polymerization inhibitor molecules react with chain free radicals t
Static load means that the external force that the component bears does not change with time, and the state of each point of the component itself does not change with time, that is
Jun 30, 2022
In gas dynamics, a wave is the interface between the disturbed and undisturbed regions. If through this interface, the disturbance increases the pressure of the gas, the wave is ca
The principle of superposition of states is a fundamental principle in quantum mechanics and is widely used in all aspects of quantum mechanics. The principle of superposition of s
Jun 29, 2022
The peak stress refers to the stress increment added to the primary and secondary stress caused by the influence of local structural discontinuity or local thermal stress. The basi
Shear strength refers to the ability of a material to withstand shearing force, code σc, refers to the strength limit when the external force is perpendicular to the axis of the ma
Jun 28, 2022
Ultimate strength refers to the maximum stress that occurs when an object is damaged under the action of external force, which can also be called failure strength or failure stress
Stress waves are the propagated form of stress and strain disturbances. Mechanical disturbances in deformable solid media are manifested as changes in particle velocity and corresp
Jun 27, 2022
Impact strength is an index to measure the toughness of materials, usually defined as the energy absorbed per unit cross-sectional area when the sample is broken or fractured under
