摘要:
According to an embodiment of the present invention, a torque variation of a servomotor, which is measured in a numerical control apparatus of an existing numerical control machine tool, is observed, and a backlash is detected by calculating a transfer distance of an output shaft of the servomotor at a torque peak, without adding additional positioning detection equipment, thereby detecting an accurate backlash amount without adding additional equipment.
摘要:
Provided is an apparatus for managing a player with a guard including a sensor sensing a vital information of a player to calculate an injury risk of the player to thereby manage a condition of the player, the apparatus including: a communication unit receiving the vital information from the guard and transmitting the injury risk to the guard; a memory storing a program calculating the injury risk to manage the condition of the player; and a processor connected to the communication unit and the memory to execute an operation implemented by the program, in which the program may include instructions using the vital information and pre-stored vital recovering ability data of the player to calculate the injury risk of the player.
摘要:
A semiconductor device includes a compound semiconductor layer, where the compound semiconductor layer includes separate fin patterns in separate regions. The separate fin patterns may include different materials. The separate fin patterns may include different dimensions, including one or more of width and height of one or more portions of the fin patterns. The separate fin patterns may include an upper pattern and a lower pattern. The upper pattern and the lower pattern may include different materials. The upper pattern and the lower pattern may include different dimensions. Separate regions may include separate ones of an NMOS or a PMOS. The semiconductor device may include gate electrodes on the compound semiconductor layer. Separate gate electrodes may intersect the separate fin patterns.
摘要:
Total global minimum costs can be determined for multiple sub-plans for completing a multi-operation database process to be performed in a distributed database management system that includes a plurality of nodes. The multiple sub-plans can include different distributions of node locations of a plurality of operators among the plurality of nodes. An optimal plan having a lowest total minimum global cost can be selected from the multiple sub-plans.
摘要:
A semiconductor device includes memory blocks each configured to comprise a pair of channels, each channel including a pipe channel formed in a pipe gate of the memory block and a drain-side channel and a source-side channel coupled to the pipe channel; first slits placed between the memory blocks adjacent to other memory blocks; and a second slit placed between the source-side channel and the drain-side channel of each pair of channels.
摘要:
A semiconductor device includes a cell structure; n first pad structures formed on one side of the cell structure and each configured to have a step form in which 2n layers form one stage; and n second pad structures formed on the other side of the cell structure each configured to have a step form in which 2n layers form one stage, wherein n is a natural number of 1 or higher, and the first pad structures and the second pad structures have asymmetrical step forms having different heights.
摘要:
Provided is a tape for electronic devices with lead crack and a method of manufacturing the tape. According to the present invention, by forming a bending portion on a narrow circuit pattern to be connected from an inner lead to an outer lead and further forming the bending portion within a resin application portion, crack occurred in a narrow wiring width can be avoided. The tape may includes a first lead and a second lead formed on a dielectric substrate and a bending portion formed on one of the first lead and the second lead wherein the bending portion is formed within a resin application portion.
摘要:
An antenna is fabricated using an M-type hexaferrite, such as a tin (Sn) and zinc (Zn) substituted M-type strontium hexaferrite (Sn/Zn-substituted SrM: SrFe12−2xZnxSnxO19), thereby enabling antenna miniaturization, broad bandwidth, and high gain. In one embodiment, an antenna system has a substrate and a chip antenna formed on the substrate. The system also has a conductive radiator contacting the chip antenna, and the chip antenna comprises an M-type strontium hexaferrite for which Fe cations are substituted with tin (Sn) and zinc (Zn) to achieve soft magnetic properties for the antenna. Thus, the coercivity and permeability are lower and higher, respectively, than those of pure SrM. Such fabricated hexaferrite chip antennas have broadband characteristics and show good radiation performance at various frequencies, including in the GHz frequency range.
摘要:
A solar cell including a first conductive type semiconductor substrate; a first intrinsic semiconductor layer on a front surface of the semiconductor substrate; a first conductive type first semiconductor layer on at least one surface of the first intrinsic semiconductor layer; a second conductive type second semiconductor layer on a back surface of the semiconductor substrate; a second intrinsic semiconductor layer between the second semiconductor layer and the semiconductor substrate; a first conductive type third semiconductor layer on the back surface of the semiconductor substrate, the third semiconductor layer being spaced apart from the second semiconductor layer; and a third intrinsic semiconductor layer between the third semiconductor layer and the semiconductor substrate.
摘要:
A Multi-Input-Multi-Output (MIMO) system has multiple radiation elements and absorbers disposed on a substrate. The absorbers are positioned about the radiation elements to reduce the interference between the radiation elements. Use of the absorbers permits interference levels comparable to conventional MIMO systems using spatial diversity without requiring the antennas to be separated by at least one-half of the wavelength of the communicated signals. A ground plane on the substrate is also positioned on the substrate to enhance antenna system performance.