Abstract: Rotary mechanisms are provided. A rotary mechanism comprises a first member, a second member rotatable with respect to the first member along a first axis, and a first washer fixed to the first member. The first washer comprises a plurality of protrusions projecting toward the second member. The second washer is fixed to the second member and comprises a plurality of sliding surfaces, a plurality of depressions respectively disposed between the sliding surfaces, and a plurality of openings formed on the sliding surfaces. The protrusions are joined in the openings when the second member rotates to an angle with respect to the first member.

Abstract: The present invention provides an electrochemical biosensor test strip used for quantitative determination of an analyte in a liquid sample. Methods of fabricating the test strip and reagent formulas are also provided. Improvements in electrochemical test strips are required to detect the presence of a compound in a liquid mixture using a smaller sample size with increased accuracy. The present invention was developed to be user-friendly, decrease sample requirements and decrease analyzing time while increasing the reproducibility and accuracy of the electrochemical test strip.

Abstract: A method of designing an interbody fusion cage is disclosed. The method uses topology optimization algorithms to define the structural layout and the inner microstructures of the cage. After the structural layout is defined, a density distribution process is performed. Based on the density distribution, the inner microstructures of the cage are defined.

Abstract: A new method is provided for the processing of metals, most notably copper, such that damage to exposed surfaces of these metals is prevented. During a step of semiconductor processing, which results in exposing a metal surface to a wet substance having a pH value, a voltage is applied to the metal that is exposed. The value of the applied voltage can, dependent on the value of the pH constant of the wet substance, be selected such that the exposed metal surface is protected against alkaline effects of the wet substance.

Abstract: A pen includes a housing, and an ink reservoir to be received in the housing. The ink reservoir includes a cartridge received in the housing and for receiving ink, a barrel attaching to front of the cartridge, and a nib attached to the barrel, for extending out through the front opening of the housing. The provision of the barrel between the cartridge and the nib allows the ink reservoir to be accommodated into various housings of different lengths and of different structures. The barrel includes a peripheral rib extended from a peripheral swelling for engaging with a spring member which may bias the barrel against the housing.

Abstract: A fuse seat filter for filter is disclosed. The fuse seat has an insertion seat and a cavity at the bottom section of the insertion seat characterized in that a positive and a negative conductive plate are respectively mounted to the two lateral sides of the cavity and the bottom section of the cavity for contacting with the positive and negative terminal of the fuse, and one lateral wall of the cavity is provided with a guiding slot and the two sides of the slot wall of the guiding slot are provided with a positioning recess and one lateral side of the seat body is provided with two engaging slot for engaging one end of the fuse, and between two engaging slot, a support block is mounted, and one lateral side of the support block is provided with sliding plate allowing sliding movement within the guiding slot, and the sliding plate has a positing protruded block for engagement at the positioning slot.

Abstract: A filter structure and the method of fabrication are disclosed.

Abstract: An apparatus and method for utilizing software to implement hot key functions without an embedded controller. A keyboard with hot keys, a keyboard encoder and a software driver module utilizes a software solution to implement hot key switching and hot key functions in a computer system without an embedded controller, providing the same functionality as a computer system with embedded controller.