Abstract: An exterior heat insulation panel is disclosed which uses vaporization heat of water. The exterior heat insulation panel is installed on the surface of a roof or walls of a structure and is used for cooling and air-conditioning of structures, particularly, to an exterior heat insulation panel which can achieve high efficiency and energy-saving. The exterior heat insulation panel includes a surface layer having a continuous capillary tube structure and a non-capillary tube void structure made of porous aggregate combined by a hydrophilic binding component, and a foamed organic resin type of heat-retaining board having closed pores. The heat-retaining board and the surface layer are integrated by compression molding.

Abstract: An exterior heat insulation panel is disclosed which uses vaporization heat of water. The exterior heat insulation panel is installed on the surface of a roof or walls of a structure and is used for cooling and air-conditioning of structures, particularly, to an exterior heat insulation panel which can achieve high efficiency and energy-saving. The exterior heat insulation panel includes a surface layer having a continuous capillary tube structure and a non-capillary tube void structure made of porous aggregate combined by a hydrophilic binding component, and a foamed organic resin type of heat-retaining board having closed pores. The heat-retaining board and the surface layer are integrated by compression molding.

Abstract: The present invention provides a high-efficient method for cooling a structure by spraying water. An air/water mixture (31) including microbubbles each having a diameter of 75 ?m or less is generated by an air/water mixture generating unit (29) mounted in a part extending from a water supply source (2a) to a water spray port (7, 30, 49), the water spray port (7, 30, 49), or in a water tank (14). By spraying the generated air/water mixture (31) from the water spray port (7, 30, 49), a target surface such as a roof (24a) of a structure (24) is covered with the air/water mixture (31), and the target surface is cooled by heat of evaporation of water.

Abstract: A series of independent technical systems including a combination of mutation methods such as cellular mutation, ultraviolet irradiation, X-ray irradiation or the like, formation and use of shoot primordium and selection of mutated cells are employed to produce genetic mutation in Manilagrass and obtain Manilagrass that retains its green leaves in winter while producing substantially no anthocyanins under normal cultivating conditions, Manilagrass that has a high stolon density, and dwarfed Manilagrass; the newly invented completely novel genotypes are used to obtain new Eragrostoideae plants.