Abstract:
The present invention relates to nucleic acid probes specific to Staphylococcus aureus, which is useful for detecting and identifying S. aureus in a biological sample. More particularly, the present invention relates to a DNA chip for detecting and identifying S. aureus, on which nucleic acid probes derived from 23 S rRNA gene of S. aureus are immobilized. The application of the DNA chips according to the present invention allows time-saving and accurate diagnosis of bacterial infection compared with the conventional bacterial culture methods.
Abstract:
The present invention relates to nucleic acid probes specific to E. coli, which is useful for detecting and identifying E. coli in a biological sample. More particularly, the present invention relates to a DNA chip for detecting and identifying E. coli, on which nucleic acid probes derived from 23 S rRNA gene of E. coli are immobilized. The application of the DNA chip according to the present invention allows time-saving and accurate diagnosis of bacterial infection compared with the conventional of bacterial culture methods. In addition, it is not affected by antibiotics addition in clinical practice, thus leading to more accurate diagnosis.
Abstract:
The present invention relates to a method and device for channel measurement in a wireless LAN system. A station (STA) receives a plurality of sounding frames from an access point (AP), estimates the plurality of sounding frames in order to generate long-term channel state information (LCSI), provides the generated LCSI to the AP as feedback, and receives from the AP a group identifier (ID) management frame comprising information on a group ID determined on the basis of the LCSI.
Abstract:
A two-stage insulated bidirectional DC/DC power converter is disclosed. A two-stage insulated bidirectional DC/DC power converter according to an embodiment of the invention has the characteristic of including: an LLC resonant converter operating at a constant duty ratio; a bidirectional converter joined to a front part of the LLC resonant converter and configured to perform a booster converter function of outputting the input voltage at a consistent input voltage for the LLC resonant converter, and a buck converter function of reducing the voltage by way of the LLC resonant converter and then outputting a consistent voltage; and a bidirectional converter control unit configured to control changes in an input voltage of the bidirectional converter and regulate an output voltage of the LLC resonant converter to thereby maintain a consistent input voltage of the LLC resonant converter, such that the LLC resonant converter operates at a constant duty ratio.
Abstract:
A semiconductor device has a first semiconductor die having at least one metal pillar formed along an inner perimeter and at least one bond pad formed along an outer perimeter. A second semiconductor die has at least one metal pillar. A conductive bump connects the at least one metal pillar of the first semiconductor die to the at least one metal pillar of the second semiconductor die. At least one metal dam is formed on the first semiconductor die between the at least one metal pillar of the first semiconductor die and the at least one bond pad.
Abstract:
Disclosed are a method, a composition, a microarray, an antibody and a kit for diagnosis and prognosis of cancer, based on detection of deletion of the exon 3 region of G-CSF gene or levels of a mutated G-CSF protein having a deletion of an amino acid sequence corresponding to the exon 3 region, wherein the deletion of the exon 3 region of the G-CSF gene is used as a cancer biomarker.
Abstract:
An apparatus and method is configured to detect the proximity of an object using a proximity sensor in a portable terminal. A method for detecting the proximity of an object in a portable terminal mounted with a proximity sensor includes setting a reference light-receiving quantity according to a hairstyle of a user of the portable terminal, emitting light, detecting a light-receiving quantity corresponding to the emitted light, and determining the proximity/non-proximity of an object by comparing the light-receiving quantity with the reference light-receiving quantity.
Abstract:
A circuit board has an insulative layer including a first surface and a second surface opposite to the first surface. A plurality of electrically conductive patterns is formed on the first surface of the insulative layer. Conductive lands are formed in a die mounting region of the first surface of the insulative layer and electrically connected to one of the plurality of conductive patterns on the first surface. An extending pattern extends from the conductive lands to outside of the mounting region. A protective layer covers the first surface of the insulative layer and the electrically conductive patterns. A trench is formed in the protective layer to expose the conductive lands and the extending patterns.
Abstract:
A method for recovering valuable metals contained in printed circuit boards of waste electronic machine, and more particularly, a method for liberating metal and plastic laminated in waste printed circuit boards uses an organic solvent and then separates and recovers the liberated metal components using an electrostatic separation process.
Abstract:
A solder attach film includes a first cover film, a flux layer, a solder layer, and a second cover film, and it can be treated or kept in a roll shape. A solder ball forming method using the solder attach film includes preparing a semiconductor package or a semiconductor die, adhering the solder attach film, gridding, and reflowing. In the solder attach film adhering operation, the first cover film and the second cover film are removed, and the flux layer is adhered to electrically conductive pads of the semiconductor package or the semiconductor die. Subsequently, in the reflowing operation, the flux layer is volatilized and removed, and the solder layer is fused and fixed to the electrically conductive pads, so that solder balls are formed.