Abstract: A digital dental mesh segmentation method and a digital dental mesh segmentation device are provided. The digital dental mesh segmentation method includes: receiving a digital dental mesh, including a plurality of teeth; inserting a tooth interface separator at a tooth interface of the digital dental mesh, the tooth interface separator being at a first location; receiving a three-dimensional movement signal and a three-dimensional rotation signal to move and rotate the tooth interface separator from the first location to a second location; and segmenting the digital dental mesh according to the tooth interface separator at the second location to obtain an independent digital teeth model.

Abstract: A workpiece measuring machine adapted to measure a workpiece under test is provided. The workpiece under test includes an assembly surface and an appearance surface. The workpiece measuring machine includes a bearing base, a height measuring device and a calculation device. The bearing base is adapted to bear the workpiece under test. The height measuring device is movably disposed at a side of the bearing base and adapted to measure heights of the assembly surface and the appearance surface. The calculation device is electrically connected to the height measuring device so as to calculate a height difference between the assembly surface and the appearance surface. A measuring method and a calibration method of sectional difference of casing of workpiece are also provided.

Abstract: A digital dental mesh segmentation method and a digital dental mesh segmentation device are provided. The digital dental mesh segmentation method includes: receiving a digital dental mesh, including a plurality of teeth; inserting a tooth interface separator at a tooth interface of the digital dental mesh, the tooth interface separator being at a first location; receiving a three-dimensional movement signal and a three-dimensional rotation signal to move and rotate the tooth interface separator from the first location to a second location; and segmenting the digital dental mesh according to the tooth interface separator at the second location to obtain an independent digital teeth model.

Abstract: A memory system comprises a memory controller and a memory device having one or more memory ranks and multiple memory electrically connected to the one or more memory ranks. The memory controller includes at least one analysis module and at least one switching determination module. The analysis module analyzes states of multiple memory control commands corresponding to a particular memory rank to generate a control parameter. The switching determination module determines whether at least one switching command is sent according to the control parameter, a current operation mode of the particular memory rank, and an operation state of the particular memory rank. When the memory device receives a first switching command of the at least one command, the particular rank and at least one part of the memory internal circuits are switched from the normal voltage operation mode to the low voltage operation mode.

Abstract: A memory system comprises a memory controller and a memory device having one or more memory ranks and multiple memory electrically connected to the one or more memory ranks. The memory controller includes at least one analysis module and at least one switching determination module. The analysis module analyzes states of multiple memory control commands corresponding to a particular memory rank to generate a control parameter. The switching determination module determines whether at least one switching command is sent according to the control parameter, a current operation mode of the particular memory rank, and an operation state of the particular memory rank. When the memory device receives a first switching command of the at least one command, the particular rank and at least one part of the memory internal circuits are switched from the normal voltage operation mode to the low voltage operation mode.