1. A method of rapidly measuring total emittance of diathermanous films by using an viscometer is introduced.

2. Emittance and irradiance are meaningful measurements of flux at a specific surface.

3. A total hemispherical emittance measurement apparatus by means of the transient calorimetric technique with a microcomputer is described.

4. A high quality beam has low emittance and low energy dispersion.

5. Vriable emittance thermal control device is one of the focus of the future spacecraft thermal control.

6. The concepts of radiant emittance and of irradiance are complementary.

7. The beam emittance and brightness are the important figure of merit for the beam in accelerator.

8. The shape of the emittance contour of a charged particle beam can be described by the contour function.

9. The solar absorptance changed obviously , while the emittance has little change after irradiation.

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10. Selecting the advanced Eddington coordinates, and adopting the statistical method, the instantaneous radiant emittance of non-static black hole is calculated out.

11. Venetian blind radiators can be replace by the variable emittance thermal suite in thermal control system of spacecraft, and it is one of key technologies for microsatellite.

12. As a result of infrared correction, curves of relationship between output signal and blackbody radiation were established to convert the original image data value into radiant emittance.

13. Spectrally selective coatings for solar-thermal applications are optimised for a high solar absorptance and a low thermal emittance.

14. The influence of the scattering albedo and scattering phase function to the apparent emittance was investigated.

15. The nonlinear space-charge field of a beam is a serious concern for beam emittance growth in particle accelerators.