“susceptibility”的概念、定义、翻译、参考文献-科学参考

susceptibility

Physics

1. (magnetic susceptibility) Symbol χ‎_m. The dimensionless quantity describing the contribution made by a substance when subjected to a magnetic field to the total magnetic flux density present. It is equal to μ‎_r−1, where μ‎_r is the relative permeability of the material. Diamagnetic materials have a low negative susceptibility, paramagnetic materials have a low positive susceptibility, and ferromagnetic materials have a high positive value.

2. (electric susceptibility) Symbol χ‎_e. The dimensionless quantity referring to a dielectric equal to P/ε‎₀E, where P is the electric polarization, E is the electric intensity producing it, and ε‎₀ is the electric constant. The electric susceptibility is also equal to ε‎_r−1, where ε‎_r is the relative permittivity of the dielectric.

Electronics and Electrical Engineering

1. (magnetic susceptibility) (symbol: χ_m) A dimensionless quantity given by
$χ_{m} = μ_{r} - 1$
where μ_r is the relative permeability of a material. Magnetic susceptibility describes the response of a material to a magnetic field, being the ratio of magnetization to magnetic field strength:
$χ_{m} = \frac{M}{H}$
χ_m is a tensor when M is not parallel to H, otherwise it is a simple number. For crystalline material χ_m may depend on the direction of the field with respect to the crystal axes because of anisotropic effects. It has a wide range of values: diamagnetic materials have a negative value; paramagnetic materials (see paramagnetism) have a small positive value; ferromagnetic materials can have a very large variable value (up to about one), which is dependent on the magnetic field strength (see magnetic hysteresis).
2. (electric susceptibility) (symbol: χ_e) A dimensionless quantity given by
$χ_{e} = ε_{r} - 1$
where ε_r is the relative permittivity. Electric susceptibility measures the ease of polarization of a dielectric and is given by the ratio
$\frac{χ_{e} = P}{ε_{0} E}$
where P is the dielectric polarization, E the electric field strength, and ε₀ the permittivity of free space.

Geography

The degree to which an environment, landform, or organism is sensitive to a particular factor. A landslide zonation map divides the land surface into zones of varying landscape susceptibility, based on the estimated significance of causal factors in inducing instability. Such maps identify and delineate potentially unstable areas, so that suitable mitigation strategies can be used, and help planners choose favourable locations for siting development schemes (Tangestani (2004) Australian J. Earth Scis 51, 3). See Sandercock et al. (2007) PPG 31, 2 on a vegetation-susceptibility index, defining the force required to bend vegetation to 45° from the vertical; see Märker et al. (2008) Geomorph. 93, 1–2 on land degradation susceptibility.

单词	susceptibility
释义	susceptibility Physics 1. (magnetic susceptibility) Symbol χ‎_m. The dimensionless quantity describing the contribution made by a substance when subjected to a magnetic field to the total magnetic flux density present. It is equal to μ‎_r−1, where μ‎_r is the relative permeability of the material. Diamagnetic materials have a low negative susceptibility, paramagnetic materials have a low positive susceptibility, and ferromagnetic materials have a high positive value. 2. (electric susceptibility) Symbol χ‎_e. The dimensionless quantity referring to a dielectric equal to P/ε‎₀E, where P is the electric polarization, E is the electric intensity producing it, and ε‎₀ is the electric constant. The electric susceptibility is also equal to ε‎_r−1, where ε‎_r is the relative permittivity of the dielectric. Electronics and Electrical Engineering 1. (magnetic susceptibility) (symbol: χ_m) A dimensionless quantity given by $χ_{m} = μ_{r} - 1$ where μ_r is the relative permeability of a material. Magnetic susceptibility describes the response of a material to a magnetic field, being the ratio of magnetization to magnetic field strength: $χ_{m} = \frac{M}{H}$ χ_m is a tensor when M is not parallel to H, otherwise it is a simple number. For crystalline material χ_m may depend on the direction of the field with respect to the crystal axes because of anisotropic effects. It has a wide range of values: diamagnetic materials have a negative value; paramagnetic materials (see paramagnetism) have a small positive value; ferromagnetic materials can have a very large variable value (up to about one), which is dependent on the magnetic field strength (see magnetic hysteresis). 2. (electric susceptibility) (symbol: χ_e) A dimensionless quantity given by $χ_{e} = ε_{r} - 1$ where ε_r is the relative permittivity. Electric susceptibility measures the ease of polarization of a dielectric and is given by the ratio $\frac{χ_{e} = P}{ε_{0} E}$ where P is the dielectric polarization, E the electric field strength, and ε₀ the permittivity of free space. Geography The degree to which an environment, landform, or organism is sensitive to a particular factor. A landslide zonation map divides the land surface into zones of varying landscape susceptibility, based on the estimated significance of causal factors in inducing instability. Such maps identify and delineate potentially unstable areas, so that suitable mitigation strategies can be used, and help planners choose favourable locations for siting development schemes (Tangestani (2004) Australian J. Earth Scis 51, 3). See Sandercock et al. (2007) PPG 31, 2 on a vegetation-susceptibility index, defining the force required to bend vegetation to 45° from the vertical; see Märker et al. (2008) Geomorph. 93, 1–2 on land degradation susceptibility.
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