Abstract: A method of identifying defects in crystals includes the following steps. A silicon carbide crystal to be identified for defects is sliced to obtain a test piece. An etching process is performed on the test piece. Etching conditions of the etching process includes the following. An etchant including potassium hydroxide is used, and etching is performed at a temperature of 400° C. to 550° C. in an environment where dry air or oxygen is introduced, so as to form etching pits of threading edge dislocations (TED) and threading screw dislocations (TSD) in the test piece. After the etching process is performed, a diameter ratio (TED/TSD) of the etching pits of the threading edge dislocations (TED) and the threading screw dislocations (TSD) observed by an optical microscope in the test piece is in a range of 0.2 to 0.5.

Abstract: A rack-mounted console module includes a lower unit slideably mounted on a rail and an upper unit pivotally coupled to the lower unit. A locking mechanism includes a first part moveably disposed in the lower unit and a second part fixedly disposed on the rail. When the upper unit is closed and the lower unit slides along the rail to a target position, the first part of the locking mechanism changes from a released state to a locked state where it engages the second part of the locking mechanism to lock the lower unit. When the upper unit is opened, the first part changes from the locked state to a ready-to-released state. When the upper unit is subsequently closed, the first part changes from the ready-to-released state to a released state where it disengages from the second part, and the console module can be slid back into the rack.

Abstract: A rack-mounted console module includes a lower unit slideably mounted on a rail and an upper unit pivotally coupled to the lower unit. A locking mechanism includes a first part moveably disposed in the lower unit and a second part fixedly disposed on the rail. When the upper unit is closed and the lower unit slides along the rail to a target position, the first part of the locking mechanism changes from a released state to a locked state where it engages the second part of the locking mechanism to lock the lower unit. When the upper unit is opened, the first part changes from the locked state to a ready-to-released state. When the upper unit is subsequently closed, the first part changes from the ready-to-released state to a released state where it disengages from the second part, and the console module can be slid back into the rack.

Abstract: The present disclosure teaches an RFID chip reader comprising two spaced-apart antennae in electrical communication with each other, with one antenna being incorporated into the chip reader, and with the other antenna separate from the main body of the chip reader but in electrical communication with the other antenna by suitable circuitry. The RFID chip reader may optionally include tuner means disposed within the circuitry connecting the two antennae. One antenna may be smaller than the other to facilitate reading of data from an RFID chip associated with an object made from a electrically-conductive material. The chip reader may optionally incorporate tuner means associated with the circuitry connecting the antennas, to optimize circuitry effectiveness. Also taught is an RFID plug comprising an RFID chip encased within a non-conductive matrix, and having deformable projections to facilitate effectively permanent press-fit installation into a plug-receiving pocket in an object associated with the RFID chip.

Abstract: A KVM operation console includes a lower body and an upper body. The lower body and the upper body are assembled into and can be separately slid from an industrial console. A lock mechanism is installed in a bottom cover of the upper body. An L-shaped arm and is pivotally connected with the bottom cover. A lock shaft and a handle are respectively pivotally connected with two ends of the L-shaped arm. The handle is moved to retract the lock shaft from or extend the lock shaft into an opening of the bottom cover by a torque of the L-shaped arm. The extended lock shaft is inserted into a hole of the industrial console so as to secure the upper body. The upper body blocks a holder of the lower body to prevent the lower body from sliding out of the industrial console.

Abstract: A KVM operation console includes a lower body and an upper body. The lower body and the upper body are assembled into and can be separately slid from an industrial console. A lock mechanism is installed in a bottom cover of the upper body. An L-shaped arm and is pivotally connected with the bottom cover. A lock shaft and a handle are respectively pivotally connected with two ends of the L-shaped arm. The handle is moved to retract the lock shaft from or extend the lock shaft into an opening of the bottom cover by a torque of the L-shaped arm. The extended lock shaft is inserted into a hole of the industrial console so as to secure the upper body. The upper body blocks a holder of the lower body to prevent the lower body from sliding out of the industrial console.