This paper presents plane thermal stresses in a functionally graded plate (FGP) with the slanting boundary to the functional gradation subjected to a partial heating. The heat conductivity, Young's modulus and the coefficient of the linear thermal expansion are expressed by exponential functions of the position in the functionally graded coordinate. The steady thermal stresses in the FGP with the slanting boundary to the functional gradation under two-dimensional temperature distribution are obtained by use of the stress function method. The numerical calculations are carried out for ZrO_2/Ti-6Al-4V and ZrO_2/stainless (SUS304) functionally graded plates, when the ceramic surface is partially heated.

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We developed the new electron gun, which can emit about twice electron in comparison with the conventional gun and could achieve the screen brightness of over 300cd/m^2 even if the ordinal driving circuit is applied. We tried two methods to improve the drive characteristics, and we chose to lower the cathode cut-off voltage (1). To maintain the resolution, we optimized the triode. And we used the tungsten-coated oxide cathode to guarantee the long life.

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In this paper, by using the sky luminance distribution model of the CIE standard general sky in place of the measured sky radiance distribution, the authors propose the method of identifing the sky types of the CIE standard general sky using values of horizontal global sky radiation (Eeg), normal direct solar radiation (Ees), without measuring the sky radiance distribution which is measured rarely. 1) The sky type of CIE standard general sky is determined by the set of parametrised Gradation and Indicatrix functions. So, to identify the set of parameter values of Gradation function and that of Indicatrix function, the regression curves are fitted to the correlation between the sun's height and Eeg in Gradation functions and the correlation between Ees and Eed in Indicatrix functions respectively in each sky types. 2) Using the relation between the fitted regression curves and the sun's height and i) Eeg in Gradation function, and ii) Ees in Indicatrix function, the set of parameter values of Gradation function and that of Indicatrix function are identified. By the each set of parameter values of two functions, the sky type is identified. And, using the sky radiance distribution of the identified sky type, the vertical irradiance values are calculated.

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