摘要:
Disclosed is a ground connecting apparatus for a mobile terminal, in which grounds formed on the terminal are directly or indirectly connected so as to reduce an SAR value, thereby adjusting a connection length of the grounds. The ground connecting apparatus for a folder-type mobile terminal, which has a main body including a main body-side ground, a folder including a folder-side ground, a hinge unit and a hinge module, includes a hinge shaft connected to one end of the hinge module; a hinge contact means installed at a designated position on the first PCB so that the hinge contact means is connected to a first PCB-side ground connecting pad provided on the first PCB and adjusts an electrical connection length of the grounds; a pin connector installed at the other end of the hinge module; and a hinge connecting means installed at the pin connector so that the hinge connecting means is connected to a second PCB-side ground connecting pad provided on the second PCB and adjusts the electrical connection length of the grounds.
摘要:
A disk player comprising a housing, a disk tray movably installed to be inserted into and to be extracted from the housing in order to place a disk in or take a disk out of the housing, a turntable rotatably installed in the housing and on which the disk placed in the housing is laid, an optical pickup slidably installed in the housing for reading information recorded on the disk placed on the turntable, a driving motor installed in the housing, a tray driving unit for moving the disk tray by power transferred from the driving motor, an optical pickup transfer unit for moving the optical pickup by power transferred from the driving motor, and a clutch unit for selectively transferring power of the driving motor to the tray driving unit or the optical pickup transfer unit.
摘要:
A wide-band horizontal linearity correction circuit includes: a primary line coil connected between a horizontal deflection yoke and an S-correction capacitor, the primary coil being wound around a first a core having a hysteresis characteristic; a secondary line coil wound around a second core adjacent the first core; a pair of permanent magnets of opposite polarities, disposed on either end of the first core; a microprocessor for supplying an analog linearity correction control signal in response to the variation of the frequency of a horizontal drive pulse signal; and a coil driver for driving the secondary line coil in response to the correction control signal supplied by the microcomputer. Accordingly, horizontal linearity can be corrected over an entire frequency band.
摘要:
A ceramic structure for water treatment, a water treatment apparatus and method are provided. Immersion efficiency of a photo catalyst and a specific surface area of the immersed photo catalyst can be improved using a ceramic medium including a ceramic paper prepared of a ceramic fiber. Accordingly, it is possible to provide the water treatment apparatus and method capable of increasing decomposition efficiency of contaminated materials due to irradiation of ultraviolet light, and so on, enabling continuous purification treatment, and remarkably reducing preparation, management and water treatment expenses.
摘要:
A separator for a fuel cell is provided. The separator comprises a flow path member and a base separator. The flow path member is made of a graphite foil and has a flow path through which fluids pass. The base separator has a seating recess formed on the surface thereof. The flow path member is mounted in the seating recess. The flow path is formed by pressing the graphite foil. The separator can be produced at reduced processing cost in a short processing time.
摘要:
The present invention relates to a catalyst for removal of nitrogen oxides from exhaust gas, a method of preparing the same and a method of removing nitrogen oxide in an exhaust gas using the same, and more particularly, to a catalyst for removal of nitrogen oxides from exhaust gas in which a ceramic fiber carrier is hydrothermal-treated prior to washcoating to improve the hydrothermal stability of catalyst, a method of preparing the same and a method of removing nitrogen oxide in an exhaust gas using the same.The catalyst prepared according to the present invention has excellent hydrothermal stability and an activity of the catalyst remains for a long time. Further, by using this catalyst to remove nitrogen oxides in an exhaust gas, a removal ratio of the nitrogen oxides is improved more.
摘要:
A separator for a fuel cell is provided. The separator comprises a flow path member and a base separator. The flow path member is made of a graphite foil and has a flow path through which fluids pass. The base separator has a seating recess formed on the surface thereof. The flow path member is mounted in the seating recess. The flow path is formed by pressing the graphite foil. The separator can be produced at reduced processing cost in a short processing time.
摘要:
The present invention is a method and apparatus for cleaning a chemical vapor deposition (CVD) chamber using cleaning gas energized to a plasma in a gas mixing volume separated by an electrode from a reaction volume of the chamber. In one embodiment, a source of RF power is coupled to a lid of the chamber, while a switch is used to couple a showerhead to ground terminals or the source of RF power.
摘要:
The present invention is a method and apparatus for cleaning a chemical vapor deposition (CVD) chamber using cleaning gas energized to a plasma in a gas mixing volume separated by an electrode from a reaction volume of the chamber. In one embodiment, a source of RF power is coupled to a lid of the chamber, while a switch is used to couple a showerhead to ground terminals or the source of RF power.
摘要:
The present invention is a method and apparatus for cleaning a chemical vapor deposition (CVD) chamber using cleaning gas energized to a plasma in a gas mixing volume separated by an electrode from a reaction volume of the chamber. In one embodiment, a source of RF power is coupled to a lid of the chamber, while a switch is used to couple a showerhead to ground terminals or the source of RF power.