Abstract: A method of making an all-zirconium one-piece dental implant has: oral scanning after implantation of artificial tooth roots, 3D archiving, making temporary dentures, and making integrated permanent dentures. The oral scanning is executed by an optical scanner and generates a digital file of a denture model, a five-axis processing machine makes a temporary denture according to the digital file of the denture model to provide fitting information to modify the digital file of the denture model or make a permanent denture. Making the permanent denture with an all-zirconium material without metal support comprises the five-axis processing machine forming a through hole in the permanent denture.

Abstract: A structure for filtering water comprises a housing, an inlet pipe, a dirty-water pipe, an outlet pipe, and a membrane assembly. The inlet pipe is connected to a first end of the housing. The dirty-water pipe is connected to a second end of the housing. The outlet pipe is connected to a side of the housing. The membrane assembly is composed of multiple tubular membranes fitted within the housing, each tubular membrane defining a central passage therein, each tubular membrane defining multiple pores through a cylindrical wall surrounding the central passage, such that water fed from the inlet pipe can be filtered out of the membrane assembly to flow into the outlet pipe for a further treatment or a use point, or can be used to wash away impurities left in the membrane assembly and then be directed to the dirty-water pipe for a utilization.

Abstract: A mosquito net system designed to be used with a hammock is provided. The mosquito net system can be shaped to form a horizontal triangular prism with a rectangular bottom side overlapping with the hammock. The perimeter of the bottom rectangular side has several ropes that can be used to tie the mosquito net to the ropes forming the hammock. The two triangular vertices that are not attached to the hammock are attached to elastic bands. The elastic bands have hooks that can be used to hook onto the ropes at the two ends of the hammock. A zipper can be provided on the mosquito net system to enable a user to conveniently enter and exit the mosquito net. As such, a mosquito net that can be attached to and detached from a conventional hammock is provided.