Abstract: There is provided a hybrid type heating system capable of heating air and water together. As an embodiment, the present invention provides a technology of carrying out heating not using a battery in an electric vehicle, a technology of heating a battery so that performance of the battery does not decrease under a low outdoor temperature condition, and a technology of carrying out heating with not decreasing driving distance of the electric vehicle or increasing the driving distance of the electric vehicle.

Abstract: A composition, for diagnosing the possibility of onset of pancreatic cancer including an agent measuring the expression level of marker protein of diagnosing the possibility of onset of pancreatic cancer, or mRNA expression level of a gene encoding the protein, a kit including the composition, and a method of diagnosing pancreatic cancer using the maker are provided. The diagnostic markers of pancreatic cancer in accordance with the present disclosure are useful for predicting or diagnosing the onset, the possibility of onset, and the severity of pancreatic cancer in an early stage, and are also applied to a study on the tumorigenesis of pancreatic cancer. In addition, the diagnosis method of the present invention allows for the convenient detection of pancreatic cancer in a non-invasive manner in a sample such as blood.

Abstract: The present invention relates to a method for preparing an ionic liquid having a carboxylic acid anion using a microreactor. More specifically, the present invention relates to a method for preparing, with high efficiency, an ionic liquid having a carboxylic acid anion as shown in FIG. 1, by having sodium butanoate, sodium 2-ethylhexanoate, or sodium octanoate undergo a substitution reaction with 1-alkyl-3-methylimidazolium, 1,1-alkylmethylpyrrolidinium, 1,2-dimethyl-3-alkylimidazolium, 1-alkyl-3-methylpyridinium, or tetramethylammonium, each of which being a cation. The ionic liquid prepared according to the present invention has high purity, containing residual halide at less than 10 ppm, and has high electrical conductivity, and therefore is capable of being used as an electrolyte or for a condenser.

Abstract: One embodiment of the present invention provides a financial service hub system for providing an integrated financial service, comprising: a common financial service unit for providing a common service specialized for the financial service hub system, and a basic technology service and utility service required for the development of the financial service hub system; and a common product service unit for managing and providing financial information related to a financial product and a financial service, and recommending the financial product and financial service to a client based on client information. Thus, a customized financial product can be provided to the client.

Abstract: Provided is a method and a device for precoding in a wireless communication system. The method for precoding comprises the following steps: generating a first precoding matrix, W1, for deciding the transmission power of one transmission antenna from a plurality of transmission antennas as the maximum power per antenna; generating a zero forcing (ZF) precoding matrix, Ti, which does not influence the transmission antenna having the power which is decided as the maximum power per antenna, based on the (i?1)th precoding matrix Wi?1 (i=2, 3, . . . ); determining ?i, a constant which has the transmission power of one transmission antenna from the rest of the transmission antennas, which do not have the transmission power as the maximum power per antenna, based on the Ti; and generating the ith precoding matrix Wi based on the Ti and the ?i.

Abstract: Provided is a method and a device for generating a precoding matrix in a wireless communication system. The method for generating the precoding matrix comprises a step of receiving from a terminal feedback including information on the error angle ? of channel direction information (CDI), which indicates the direction of a channel direction vector, and a step of generating the precoding matrix based on the information on the error angle ? of the CDI, wherein the error angle ? of the CDI indicates the angle between the channel direction vector and a quantized channel direction vector, and includes at least one of a channel quantization error component, a channel feedback delay error component, and a channel estimation error component.

Abstract: Provided is a method and a device for precoding in a wireless communication system. The method for precoding comprises the following steps: generating a first precoding matrix, W1, for deciding the transmission power of one transmission antenna from a plurality of transmission antennas as the maximum power per antenna; generating a zero forcing (ZF) precoding matrix, Ti, which does not influence the transmission antenna having the power which is decided as the maximum power per antenna, based on the (i?1)th precoding matrix Wi?1 (i=2,3, . . .

Abstract: Provided is a method and a device for generating a precoding matrix in a wireless communication system. The method for generating the precoding matrix comprises a step of receiving from a terminal feedback including information on the error angle ? of channel direction information (CDI), which indicates the direction of a channel direction vector, and a step of generating the precoding matrix based on the information on the error angle ? of the CDI, wherein the error angle ? of the CDI indicates the angle between the channel direction vector and a quantized channel direction vector, and includes at least one of a channel quantization error component, a channel feedback delay error component, and a channel estimation error component.