Abstract:
Disclosed is an apparatus for the combustion synthesis of carbon nanotubes characterized with the combustor having an oxidizing agent inlet, a fuel inlet and an inert gas inlet, such that the inverse diffusion flame occurs within the combustor, thereby producing carbon nanotubes without using vacuum, and a method for the combustion synthesis of carbon nanotubes using the same. According to the present invention, it is possible to directly collect samples including carbon nanotubes without oxidation and a substrate may be installed with ease. Moreover, the manufacturing cost can be lowered to a level suitable for mass production so that the carbon nanotube technology can be extended to various applications.
Abstract:
A thermostable DNA polymerase composition comprising at least two DNA polymerases, one of which is substantially reduced in 5′-exonuclease activity and one of which has 5′-exonuclease activity. This polymerase may be used in methods including, but not limited to, nucleic acid synthesis, DNA sequencing, nucleic acid amplification and cDNA synthesis,
Abstract:
A power saving apparatus and a method in a wireless communication system are provided. An Access Point (AP) buffers transmission frames for sleep-mode stations in a sleep-mode buffer. Upon wakeup from a sleep mode, a station sends a first control information frame indicating wakeup to the access point. The access point sends a second control information frame including a requested transmission length in response to the first control information frame to the station. The station generates a third control information frame, aggregates the third control information frame and user data frames to a first protocol data unit, and sends it to the AP. Then the AP generates a fourth control information frame, aggregates the fourth control information frame and buffered frames to a second protocol data unit, and sends it to the station.
Abstract:
Disclosed are methods and materials for enhancing the efficiency, specificity and/or specificity of nucleic acid amplification reactions (e.g., PCR amplification reactions). The disclosed inventions involve the use of nonspecific double-stranded DNA binding proteins in amplification reactions. The methods described herein are useful in a wide variety of molecular biology applications including allele specific PCR.
Abstract:
A TDM (Time Division Multiplexing)-based mobile communication system that switches a service type according to QoS (Quality of Service). The mobile communication system includes a base transceiver system (BTS) and a mobile station (MS) connected to the BTS. The BTS monitors whether a first service provided from the BTS to the MS is satisfied according to whether at least as much data as a predetermined transmission amount is transmitted to the MS. If the first service is dissatisfied, the BTS switches a service to a second service lower in QoS than the first service so that as much data as a transmission amount smaller than the predetermined transmission amount is transmitted to the MS.
Abstract:
A heating cooker which evenly heats or cooks food, and is easily cleaned, includes a cabinet to define a cooking cavity therein. The cooking cavity is open at a front thereof. A fan chamber is defined by recessing a rear wall of the cooking cavity at a predetermined area to a predetermined depth. An air circulation fan and a heater are installed in the fan chamber. The air circulation fan circulates air of the cooking cavity. The heater heats the air in the fan chamber. A chamber cover is mounted to the rear wall of the cooking cavity to cover an open front of the fan chamber. The chamber cover has a plurality of air suction ports at a central area thereof, with a plurality of air distribution ports provided along an edge of the chamber cover to guide the air from the fan chamber to the edge of the chamber cover so as to discharge the air to the cooking cavity.
Abstract:
An external battery pack is provided. The external battery pack includes a secondary battery, an internal circuit, a housing having the secondary battery and the internal circuit, and an inserting portion. The inserting portion is formed in the housing, and the inserting portion is capable of inserting and fixing a portable electronic device. In addition, the external battery pack preferably further includes a pen type fixing unit having a holding part and the inserting portion preferably includes a supporting portion and an inserting rib.
Abstract:
A method and an apparatus for encoding and decoding a modulation code are provided. The method includes: adding an error detection bit(s) to source information; performing k-constraint coding by inserting an error pattern that can be detected using an error detection code into a data stream that violates a k-constraint for a run length limited (RLL) code in a data stream comprising the error detection bit(s) and the source information, and recording the data stream after being k-constraint coded onto a recording medium; and reading the data stream recorded onto the recording medium and determining whether an error is present in the data stream.
Abstract:
Disclosed herein is a hot plugging device for optical transceiver modules. The hot plugging device comprises a module housing, latching grooves extended from prescribed positions of both sides of the module housing to one end of the module housing, respectively, sliding members extended in the longitudinal direction of the module housing and linearly movably accommodated in the latching grooves, respectively, and a rotating member rotatably attached to one end of the module housing for engaging ends of the sliding members with corresponding ends of the latching grooves, respectively, while the rotating member is placed at a prescribed angle to the longitudinal direction of the module housing. With the hot plugging device of the present invention, a locking unit of the module housing is easily released, and the release of the locking unit is maintained, whereby the module housing is easily separated from a cage. Also, a working space necessary to separate the module housing from the cage is reduced, whereby many more optical transceiver modules can be mounted. Furthermore, only latching pieces are deformed when the module housing is separated from the cage. Consequently, the present invention has an effect of preventing permanent deformation of the module housing or the cage or damage to the module housing or the cage.
Abstract:
The present invention relates to a plasma display apparatus and a method for processing image thereof. The plasma display apparatus according to the present invention comprises a gray-level signal division part for dividing a gray-level signal during one frame into a first gray-level signal and a second gray-level signal, a high pass filter for filtering the first gray-level signal through high frequency bandwidth and a low pass filter for filtering the second gray-level signal through low frequency bandwidth.