Abstract:
A metal-oxide sintered body for a temperature sensor that can be installed in a combustion engine and components connected to the engine in order to sense temperature uses metal oxide. The metal-oxide sintered body has particles with large resistance values and particles with small resistance values mixed therein. The particles with the small resistance values may serve as a main resistance component in the temperature range of 0° C. to 500° C., and the particles with the large resistance values may contribute to the total resistance in proportion to the mixing ratio in the temperature range of 500° C. to 900° C. Thus, the metal-oxide sintered body enables a single sensor to measure all resistances, and can be used in an exhaust device or the like of a motor vehicle that requires temperature measurement over a wide range of temperatures.
Abstract:
The present invention relates to a photobioreactor for microalgae cultivation having a bubble circulation structure, which allows gas flowing into a cultivation space to generate a vortex and thus circulate microalgae, thereby improving cultivation efficiency of the microalgae.A photobioreactor for microalgae cultivation according to an embodiment of the present invention includes a cultivation panel major body having the cultivation space into which the microalgae are injected to be cultivated; a gas supply pipe provided at a lower portion of the cultivation panel major body to pass through the cultivation space in a transverse direction and thus discharge inflow gas; and at least one vortex forming partition extending in a transverse direction from an internal wall of the cultivation panel major body and formed to have an arc shape and thus cause a vortex to an ascending current of gas supplied through the gas supply pipe.
Abstract:
A method of transmitting K messages using divided message authentication codes (MACs) in a controller area network (CAN) includes: generating a MAC using a first message and a specific MAC, performing a first operation with respect to j using j-th messages subsequent to the first message and a second MAC part of the generated MAC, performing a second operation with respect to j using a result of the performed first operation and a j-th subblock subsequent to a first MAC subblock among K MAC subblocks obtained by dividing a first MAC part of the generated MAC, transmitting the first message along with the first MAC subblock, and transmitting K-1 j-th messages in an order of j, each of the j-th messages being transmitted along with a j-th result of the performed second operation.
Abstract:
Disclosed is a circular array antenna. The circular array antenna includes: an input/output unit receiving electromagnetic waves from a transmitter and distributing the received electromagnetic waves to the antenna; a primary feeder connected with the input/output unit and placed at the center of the circular array antenna; a plurality of secondary feeders radially connected to the primary feeder; a plurality of patch units connected to the respective secondary feeders to generate an electric field radially; and a plurality of length controllers formed at terminals of the respective secondary feeders in a direction to extend the lengths of the respective secondary feeders, of which the lengths are controllable.
Abstract:
A communication method of a terminal that can operate in a relay mode or a base station mode is provided. When the terminal, having received a service from a first base station, detects that a service connection to the first base station is unavailable, the terminal searches for a second base station, which is an available neighboring base station. The terminal transmits a ranging request message including a base station identifier of the first base station to the second base station.
Abstract:
Disclosed herein are an apparatus and method for detecting a crack in a small-bore piping system. The apparatus includes a sensor unit, a bobbin coil, a power supply unit, and a signal reception unit. The sensor unit is configured such that a plurality of magnetic sensors is arranged thereon and formed to be cylindrical. The bobbin coil is wound around the outside surface of the sensor unit. The power supply unit applies direct current (DC) power to the sensor unit and alternating current (AC) power to the bobbin coil. The signal reception unit quantifies a signal from the sensor unit. The sensor unit detects the distribution of a magnetic-field attributable to the crack in the small-bore piping system based on the AC power applied to the bobbin coil.
Abstract:
The present invention relates to a novel antibiotic peptide originated from the ribosomal protein L1 of Helicobacter pylori and a use of the same. Particularly, the novel peptide represented by SEQ. ID. NO: 4 was synthesized by replacing phenylalanine, the 12th amino acid of the peptide composed of the amino acid sequence represented by SEQ. ID. NO: 3, with proline. The present inventors confirmed that the novel peptide had a significant antibacterial activity but had no cytotoxicity. In addition, the inventors confirmed that the peptide of the invention had in vivo anti-inflammatory effect, so that the novel peptide can be used as an active ingredient of a natural antibacterial agent.
Abstract translation:本发明涉及一种起源于幽门螺杆菌的核糖体蛋白L1的新型抗生素肽及其应用。 特别地,SEQ ID NO: ID。 通过将由SEQ ID NO:1表示的氨基酸序列构成的肽的第12位氨基酸替代为苯丙氨酸来合成NO:4。 ID。 NO:3,用脯氨酸。 本发明人证实,该新型肽具有显着的抗菌活性,但没有细胞毒性。 此外,本发明人确认本发明的肽具有体内抗炎作用,因此可以将新型肽用作天然抗菌剂的有效成分。
Abstract:
Disclosed is a GPS arrival angle selecting system. The system includes: a arrival angle estimating unit connected to a receiving antenna of a GPS receiver including at least one antenna array element and configured to decide a first arrival angle of a signal received prior to despreading and a second arrival angle of a signal received after despreading; and an arrival angle selecting unit configured to select a different peak value by comparing the first arrival angle and the second arrival angle. Also disclosed is a GPS arrival angle selecting method.
Abstract:
The present invention relates to a photobioreactor for microalgae cultivation having a bubble circulation structure, which allows gas flowing into a cultivation space to generate a vortex and thus circulate microalgae, thereby improving cultivation efficiency of the microalgae.A photobioreactor for microalgae cultivation according to an embodiment of the present invention includes a cultivation panel major body having the cultivation space into which the microalgae are injected to be cultivated; a gas supply pipe provided at a lower portion of the cultivation panel major body to pass through the cultivation space in a transverse direction and thus discharge inflow gas; and at least one vortex forming partition extending in a transverse direction from an internal wall of the cultivation panel major body and formed to have an arc shape and thus cause a vortex to an ascending current of gas supplied through the gas supply pipe.
Abstract:
A composite material for a temperature sensor and a method of manufacturing the temperature sensor using the composite material are provided. The composite material contains four or more kinds of metal oxides combined with highly insulating materials to produce a material with semiconductor-like properties to more accurately measure a temperature at high temperatures in the range of 500° C. and above. The sensor includes electrode wires having a predetermined diameter inserted into the metal oxide of the temperature sensor when the metal oxide is press-molded to form the temperature sensor. Through the connection of the electrode wires to the temperature sensor device, disconnection of the electrode wires from the device even at a high temperature.