Abstract: An uninterruptible power system (UPS) testing method includes the steps of setting an operational decline table, setting an initial value, collecting data, inputting targets, executing multi-algorithm, and indicating a warning or an approval. Wherein, battery cells of the UPS are repeatedly tested when being actually used at different temperatures to set the operational decline table and the initial time value; and data about temperatures and time periods of the battery in operation are continuously collected for a user to execute algorithms based on designated conditions to predict the battery state in a future time period; and an indication message is generated for the user to determine whether the battery is still usable or has to be replaced. In this manner, it is able to estimate the running time of a target time of the UPS without the need of performing an actual electrical discharge procedure.

Abstract: A prosthodontic device applicable to the remainder of a root of a tooth that has received complete endodontic therapy includes a post and a core integrally formed with one end of the post. The post has a post body and a connection unit formed on the surface of the post body. The core has a head to sit on the top end of the remainder of the root of the tooth and at least one shoulder formed on the head. The largest diameter of the core is larger than the largest diameter of the post body of the post. The prosthodontic device enables rapid completion of tooth preservation and restoration after endodontic therapy.

Abstract: An oral positioning device for positioning a breathing tube includes a first teeth guard having a first groove, and a first seat extends from the first teeth guard. The first seat has a first notch. An engaging member has two pivots and a second seat which is engaged with the first seat. The second seat has a second notch which is cooperated with the first notch to form a positioning hole which the breathing tube extends. A second teeth guard has a second groove and two pivotal holes with which the two pivots are pivotably engaged. The first and second seats position the breathing tube in the patient's mouth. The first and second teeth guards protect the patient's teeth from being damaged by of the laryngoscope when opening the patient's mouth.

Abstract: An oral positioning device for positioning a breathing tube includes a first teeth guard having a first groove, and a first seat extends from the first teeth guard. The first seat has a first notch. An engaging member has two pivots and a second seat which is engaged with the first seat. The second seat has a second notch which is cooperated with the first notch to form a positioning hole which the breathing tube extends. A second teeth guard has a second groove and two pivotal holes with which the two pivots are pivotably engaged. The first and second seats position the breathing tube in the patient's mouth. The first and second teeth guards protect the patient's teeth from being damaged by of the laryngoscope when opening the patient's mouth.