Abstract: A material composition having a core-shell microstructure suitable for manufacturing a varistor having outstanding electrical properties, the core-shell microstructure of the material composition at least comprising a cored-structure made of a conductive or semi-conductive material and a shelled-structure made from a glass material to wrap the cored-structure, and electrical properties of the varistors during low temperature of sintering process can be decided and designated by precisely controlling the size of the grain of the cored-structure and the thickness and insulation resistance of the insulating layer of the shelled-structure of material composition.

Abstract: A submerged biofiltration purifying apparatus includes a settling zone being a 3D space having open top, bottom, and two lateral sides; one or more filtering zones coupled to the two lateral sides of the settling zone, and each being a 3D space with open sides and having soft contact media connected thereto; and one or more bubble aeration units connected to bottoms of the filtering zones. The soft contact media allow biological films to grow thereon. The bubble aeration units generate air bubbles that guide sewage to flow toward the soft contact media, so that organic substances in the sewage are adsorbed to the biological films. The soft contact media are arranged at a specific angle for the sewage to naturally diffuse toward two lateral sides of the settling zone and recycle. And, purified water settles in the settling zone again to remove remaining suspended solids to achieve sewage purification.

Abstract: A submerged biofiltration purifying apparatus includes a settling zone being a 3D space having open top, bottom, and two lateral sides; one or more filtering zones coupled to the two lateral sides of the settling zone, and each being a 3D space with open sides and having soft contact media connected thereto; and one or more bubble aeration units connected to bottoms of the filtering zones. The soft contact media allow biological films to grow thereon. The bubble aeration units generate air bubbles that guide sewage to flow toward the soft contact media, so that organic substances in the sewage are adsorbed to the biological films. The soft contact media are arranged at a specific angle for the sewage to naturally diffuse toward two lateral sides of the settling zone and recycle. And, purified water settles in the settling zone again to remove remaining suspended solids to achieve sewage purification.

Abstract: The present invention discloses a fine bubble diffuser membrane for wastewater treatment, and the tubular diffuser membrane includes a first breathing elastic material fixing layer, a porous elastic polymer laminated layer and a second breathing elastic material fixing layer, and the three layers are attached sequentially with each other, and a number of uniform or non-uniform of penetrating holes are formed on the three layers before or after the three layers are adhered. The three layers sheet is rolled into a tubular shape, and sewed and fixed at the joint, so as to achieve the functions of a quick manufacture and a high efficiency of use.