A ZrO2 coating solution containing ZrO2 photo-catalysis, which is transparent in visible light, was prepared by the hydrolysis of alkoxide, and thin films on the SiO2 glass substrate were formed in a dipcoating method. These thin films were heat-treated at temperatures ranging from 250˚C-800˚C and their characteristics were subjected to thermal analysis, XRD, spectrometry, SEM, EDS, contact angle measurement, and AFM. Tetragonal ZrO2 phase was found in the thin film heat treated at 450˚C, and anatase TiO2 phase was detected in the thin film heat-treated at 600˚C and above. The thickness of the films was approximately 300 nm, and the roughness was 0.66 nm. Thus, the film properties are excellent. The films are super hydrophilic with a contact angle of 4.0˚; moreover, they have self-cleaning effect due to the photo catalytic property of anatase TiO2.
The modern agriculture has been damaged through the rapid changes due to the policy of the plundering of food during the Japanese colonial era, the Korean War, the industrialization, etc. The purpose of this research is to define the scope and the concepts of the modern agricultural heritages and to establish utilization standards of the modern agricultural heritages. With such a purpose, this research proceeds with three phases. First, the definitions the systems of the organizations the modern age and the modern agricultural heritages. Second, the analyses of the patterns and the special characteristics through the general investigation. Third, the regeneration through the comparative examinations of the case examples of the conflicts between the modern agricultural heritages. And the new attempts through the drawing of the new discussion points and the advanced tendencies are proposed. It is judged that this research will provide the point of the aim when looking at the modern agricultural heritages as the historical and cultural assets, and that it will provide the several principles when formulating the plans for the invigoration of the farm villages and the plans for the developments of the agricultural regions and provide the bases for the practical formulations.