Abstract: The present invention relates to a novel gene encoding cysteine protease expressed specifically in rice anther, an anther-specific promoter of the gene and a method for producing male sterile rice by suppressing expression of the gene. The rCysP1 gene of the present invention is a novel gene encoding cysteine protease that is expressed in rice anther and thus involved in pollen development. Therefore, suppression of the gene expression makes it possible to prepare male sterile rice available to control of seed production because the suppression results in pollen generation in rice. In addition, the above gene of the present invention is available to other Gramineae and provides an advantage to use antagonistic traits, which can be shown by over-expression.

Abstract: Provided is a photodetector in which a transparent nonconductive material having an interface charge and a trapped charge is deposited on a semiconductor surface so as to form a depletion region on the surface of the semiconductor, and the depletion region is employed as an optical detecting region, thereby not only improving detection with respect to light having a wavelength of ultraviolet and blue ranges but also filtering light having a wavelength of visible and infrared ranges, and in which a fabricating process thereof is compatible with a universal silicon CMOS process.

Abstract: A wireless communication method in a network environment in which several devices are connected and wireless communications are performed through a channel synchronized by a sync signal that is broadcast from a piconet coordinate (PNC) selected among the several devices. The wireless communication method includes classifying a first frame to be transmitted to a first device among the several devices into a predetermined number of classes, calculating a waiting time before backoff depending on the classes, and determining whether the channel is used by any other device during the calculated waiting time, calculating a backoff time according to the classes and performing the backoff during the calculated backoff time, if the channel is idle during the waiting time, and transmitting the first frame when the backoff time ends. By adapting the priority to the CAP of the superframe, the control information is quickly conveyed and a high rate wireless communication is realized.

Abstract: A channel time allocation method in a wireless network which is synchronized by a synchronization signal broadcasted from a coordinator, includes a plurality of data devices linked to the wireless network each transmitting to the coordinator a command requesting a first channel time necessarily required and a second channel time selectively required according to a type of data to be transmitted, the coordinator allocating a channel time which includes a channel time allocation (CTA) period corresponding to each first channel time requested by the plurality of the devices, and a shared CTA period corresponding to each second channel time requested by the plurality of the devices and to be shared and used by the plurality of the devices, and broadcasting to the plurality of the devices the synchronization signal to which information of the allocated channel time is inserted.

Abstract: Disclosed herein is a femoral broaching apparatus for use in preparing a femoral cavity for implantation of a prosthetic joint in surgical orthopedic artificial hip joint replacement arthroplasty procedures. The apparatus comprises a fixing guide unit fixed in the femoral cavity by an interference fit, a cavity preparing broach coupled to the fixing guide unit in a longitudinally movable manner, and a vibration-generating unit coupled to the cavity preparing broach for allowing the cavity preparing broach to perform the preparing of the femoral cavity under operation of the fixing guide unit. According to the present invention, a femoral cavity having an intended accurate shape can be easily prepared using mechanical vibration rather than a manual operation, thereby ensuring operational convenience.

Abstract: A mechanism adapted to shift the brake pedal toward the front of the vehicle when the dash panel is pushed toward the passenger compartment due to a vehicle collision is disclosed. The brake pedal structure prevents injury to a driver's ankle by minimizing impact transmitted through the brake pedal in the vehicle collision.

Abstract: A method, medium, and system for identifying a frame number for a data decoding system requiring less frame sync identification data (ID) than frame numbers, including detecting a sync ID of a current frame and/or sync IDs of previous frames from input data, and identifying a current frame number according to whether a number of matching sync IDs in a combination, considering sequence, of a detected sync ID of the current frame and/or sync IDs of previous frames is equal to or greater than a predetermined number. Even when, in a stable state, an error-free current frame sync ID does not exist, or even when sync IDs of frames being compared are not continuously detected, a frame number can be recognized if the number of matching sync IDs, among sync IDs of frames being compared, is equal to or greater than a predetermined number, by using uniqueness of a combination, considering sequence, of the current frame sync ID and sync IDs of previous frames.

Abstract: Disclosed is a channel time allocation method in a high rate WPAN and a wireless system using the same. In the WPAN environment synchronized by a synchronization signal broadcasted from a coordinator, the channel time allocation method includes transmitting a channel time allocation request command corresponding to a property of an application data to be transmitted to the coordinator by any one of devices linked to the WPAN, and the coordinator allocating the channel time, inserting information of the allocated channel time to the synchronization signal, and broadcasting the synchronization signal to the devices. Accordingly, the channel time is allocated to fit for the property of the VBR stream data such as the MPEG-2 video so that the QoS of the VBR stream is provided. At the same time, reliability of the transmission of I frame is enhanced so that success rate of decoding the frame is increased.

Abstract: A wireless communication system includes a queue status detection unit for detecting the amount of unit data being used for communication between a plurality of external devices, and deciding a class parameter T of one of the external devices; a counter for counting the number of giving-away times of the external device based on the giving-away of communication opportunities to communicate with the plurality of external devices, and deciding a delay parameter D of an external device; a communication priority decision unit for calculating priority values P of an external device by using a class parameter and a delay parameter, and determining an external device having a priority out of the plurality of external devices based on the priority values; and a communication initiation unit for initiating data communications with the determined external device having the priority. Accordingly, a communication method considering both throughput and fairness can be obtained.

Abstract: In accordance with one or more embodiments, a method of managing animation data and related control data for recording on an enhanced navigation medium is provided. The method comprises constructing animation data comprising first image data into a first graphic MNG file in chunk data format, wherein the first graphic file comprises a first header portion, a second end portion, first control data and a frame containing additional data; and recording the first graphic file on an enhanced navigation medium.

Abstract: Disclosed is a handoff processing method capable of restarting fast communications. The handoff processing method stores in a handoff buffer Host Control Interface (HCI) data and transmission data upon communications in a state where an Access Point is interlinked with an external device. Further, the method forwards the HCI data and the transmission data buffered in the handoff buffer to a new Access Point (AP) transmitting a message indicating setup completion of a connection if the message indicating setup completion of a connection with the external device is transmitted from the new AP after a handoff occurs as the external device moves. Accordingly, throughputs are not lowered despite handoff occurrences in poor wireless channel environments, so that service quality can be enhanced.

Abstract: An alert transmission apparatus for a policy-based intrusion detection and response has a central policy server (CPS) and an intrusion detection and response system (IDRS). In the CPS, a policy management tool generates security policy information and then stores the generated security policy information in a policy repository. A COPS-IDR server sends the information to the IDRS and an IDMEF-XML-type alert transmission message to a high-level module. An IDMEF-XML message parsing and translation module stores a parsed and translated IDMEF-XML-type alert transmission message in an alert DB or provides the message to an alert viewer. In the IDRS, a COPS-IDR client generates the IDMEF-XML-type alert transmission message and provides the message to the CPS. An intrusion detection module detects an intrusion. An intrusion response module responds to the intrusion. An IDMEF-XML message building module generates an IDMEF-XML alert message and provides the message to the COPS-IDR client.

Abstract: This invention describes novel DNA sequences which function as promoters of anther-specific transcription of coding DNA sequences in recombinant or chimeric DNA sequences. The invention also describes recombinant or chimeric DNA sequences, which are expressed specifically in the anther of a plant. The said recombinant or chimeric DNA sequences may be used to create transgenic plants, but especially transgenic male-sterile plants.

Abstract: The present invention relates to a high accuracy turbine flowmeter using a magnetic bearing. More specifically, the object of the invention is to provide a method for enhancing the accuracy and reliability of a turbine flowmeter by improving the friction and wear-out effects occurring from the bearing parts through a non-contact support of the rotor in terms of a magnetic bearing.

Abstract: There is provided a PN (Pseudorandom Noise) hypothesis moving apparatus and method in a high speed searcher. In the PN hypothesis moving apparatus, a PN sequence generator system has a PN sequence generator for generating a PN sequence and a PN state register for storing information about a PN state. A correlation counter counts the number of correlations, and a comparator receives the output of the correlation counter, a correlation length, and a search speed, compares them, and provides a PN state saving point and a PN state loading point to the PN sequence generator system according to the comparison to change a PN hypothesis.

Abstract: This invention describes novel DNA sequences which function as promoters of anther-specific transcription of coding DNA sequences in recombinant or chimeric DNA sequences. The invention also describes recombinant or chimeric DNA sequences, which are expressed specifically in the anther of a plant. The said recombinant or chimeric DNA sequences may be used to create transgenic plants, but especially transgenic male-sterile plants.

Abstract: An electron gun for a color cathode ray tube includes a triode having a cathode, a control electrode, and a screen electrode for producing electron beams; first, second, and third focus electrodes; and a final accelerating electrode sequentially disposed from the screen electrode. A first constant voltage is applied to the screen electrode and the second focus electrode, a second constant voltage higher than the first constant voltage is applied to the first focus electrode and the third focus electrode, and an anode voltage higher than the second constant voltage is applied to the final accelerating electrode, so that electron beams cross from the triode cross between a main lens formed by the third focus electrode and the final accelerating electrode, and an auxiliary lens formed by the first, second, and third focus electrodes. The electron gun produces uniform size electron beam spots over a fluorescent film of a cathode ray tube with reduced spherical aberration.

Abstract: A lead-free soldering material for soldering wires of electronic parts is disclosed. The lead-free soldering material is composed of in weight %: 3-4% of Ag, 2-5% of In, 6-14% of Bi and a balance of Sn, and the soldering material shows a superior solderability.

Abstract: Disclosed is a power supply source control apparatus for a satellite broadcast receiver. The voltage supplied to the outdoor-installed satellite broadcast receiving facilities is compared with a reference voltage to detect whether there is an extraordinary state such as a short circuit in a power source. In response to the detected signal, a signal for disconnecting the power supply voltage is generated. At the same time, a display device is made to operate to inform the user of the power failure.

Abstract: A tungsten based heavy alloy having a W--Ni--Fe based composition containing traces of lanthanum or calcium, thereby capable of exhibiting high toughness, irrespective of the content of impurities such as phosphorous and sulfur contained therein, the cooling rate after the sintering treatment and the re-heating treatment. The present invention provides a method for making the high toughness tungsten based heavy alloy. The tungsten based heavy alloy of the present invention is useful to manufacture warheads for breaking armor plates, which require high toughness.