摘要:
In retransmitting data at high speed by a PHY layer in a mobile communication system, when data to be transmitted to the receiver is received from the MAC layer of the transmitter, the PHY layer of the transmitter transmits the data to the PHY layer of the receiver, receives first information representing normal reception or abnormal reception of the data from the PHY layer of the receiver, notifies the MAC layer of the transmitter of the normal reception of the data when the first information represents the normal reception, and retransmits the data to the PHY layer of the receiver when the first information represents the abnormal reception.
摘要:
A fuel cartridge and a fuel cell power generation system equipped with the fuel cartridge are disclosed. The fuel cartridge can include a hydrogen generation part, which generates hydrogen by reacting with an electrolyte solution, a liquid-gas separation membrane, which surrounds the hydrogen generation part and separates the generated hydrogen from the electrolyte solution and discharges the hydrogen to the outside, and a cap, which opens and closes the liquid-gas separation membrane. The fuel cartridge of the present invention can reduce an effect of electrolyte solution flowing backwards and generate hydrogen more efficiently by minimizing the loss of electrolyte solution.
摘要:
An apparatus for generating hydrogen and a fuel cell power generation system equipped with the apparatus are disclosed. The apparatus can include an electrolyte bath containing the electrolyte solution, an anode positioned inside the electrolyte bath and configured to generate electrons, a cathode positioned inside the electrolyte bath and configured to receive the electrons from the anode to generate hydrogen, and a supplementary device configured to increase an amount of the hydrogen generated. The apparatus can be utilized to increase the amount of hydrogen generation at initial operation and reduce the time required to reach steady state.
摘要:
A hydrogen generating apparatus can include an absorbent layer that absorbs an aqueous solution, a metal membrane deposited on either side of the absorbent layer such that the absorbent layer is interposed between the metal membranes, and a support layer formed on one side of one of the metal membranes that transports hydrogen generated by a reaction between the aqueous solution and the metal membrane. A batch type reaction may thus be implemented between the aqueous solution and the metal membranes, so that the reaction can be controlled to provide an even rate of hydrogen generation. Possible disturbances to the reaction resulting from by-products can be prevented, and since there is no additional equipment required, the volume and weight of the fuel cell power generation system can be reduced, and the extra power consumption by the additional equipment can be avoided.
摘要:
An apparatus for transmitting data in a wireless access communication system includes a rate request code selector for selecting a corresponding rate request code from among rate request codes predefined according to a traffic rate, and a transmitter for transmitting the selected rate request code to a Base Station (BS). The apparatus receives an uplink Media Access Protocol (MAP) from the BS, acquires uplink resource allocation amount information from the uplink MAP, selects a corresponding rate request code from among rate request codes predefined according to a traffic rate considering the uplink resource allocation amount information and a size of transmission data, and transmits uplink data including the selected rate request code to the BS.
摘要:
In retransmitting data at high speed by a PHY layer in a mobile communication system, when data to be transmitted to the receiver is received from the MAC layer of the transmitter, the PHY layer of the transmitter transmits the data to the PHY layer of the receiver, receives first information representing normal reception or abnormal reception of the data from the PHY layer of the receiver, notifies the MAC layer of the transmitter of the normal reception of the data when the first information represents the normal reception, and retransmits the data to the PHY layer of the receiver when the first information represents the abnormal reception.
摘要:
A liquid crystal display (LCD) apparatus is divided into a display area on which an image is displayed and a non-display area surrounding the display area. The LCD apparatus includes an organic insulating layer partially formed in the non-display area. A portion of the organic insulating layer is not formed, obtaining a vent space through which to exhaust air trapped when a first substrate is combined with a second substrate of the liquid crystal display apparatus. The LCD apparatus may rapidly and easily exhaust the trapped air from the display area and uniformly maintain the cell gap between the first and second substrates, improving display quality of the LCD apparatus.
摘要:
An apparatus and method for ranging for uplink resource allocation in a broadband wireless communication system are provided. The method includes detecting, from an Uplink Channel Descriptor (UCD), first ranging codes corresponding to a first region and second ranging codes corresponding to a second region, selecting one of the second ranging codes corresponding to the second region, mapping the selected second ranging code to the first region and transmitting the same to a base station, and receiving an allocation of an uplink resource from the base station.
摘要:
An apparatus and method for supporting Hybrid Automatic Repeat reQuest (HARQ) for an anonymously allocated bandwidth in a broadband wireless communication system are provided. The method of a terminal includes obtaining classification information of HARQ support ranging codes from a message received from a base station, to request an anonymously allocated resource, transmitting one of the HARQ support ranging codes, receiving a resource allocation message including HARQ related information and anonymous resource allocation information, and transmitting one of a ranging request message and a bandwidth request header according to the resource allocation information.
摘要:
Hydrogen generating apparatus that is capable of controlling the amount of hydrogen generation. The hydrogen generating apparatus has an electrolyzer, a first electrode, a second electrode, a switch, which is located between the first electrode and the second electrode, a flow rate meter, which measures an amount of hydrogen generation in the second electrode, and a switch controller, which receives a set value, compares the amount of hydrogen generation measured by the flow rate meter with the set value, and controls an on/off status of the switch. The amount of hydrogen generation can be controlled by use of on/off time and/or on/of frequency of the switch.