Abstract: Proposed is a detachable mooring system for an offshore structure, including a first tension adjuster connected to an offshore structure, and blocking a pulling chain from proceeding from an outlet of a body toward an inlet, a second tension adjuster connected to one end of the pulling chain and blocking the pulling chain from proceeding from an outlet of a body toward an inlet, a mooring chain having a first longitudinal end connected to one surface of the second tension adjuster body and having a second longitudinal end connected to an anchor on the seabed, a first lead rope having one longitudinal end connected to one end of the pulling chain discharged out through the first tension adjuster outlet, and a second lead rope having one longitudinal end connected to the second tension adjuster body.

Abstract: A method of canceling interference by a signal receiving apparatus in a communication system supporting a multi-user Multiple-Input Multiple-Output (MIMO) scheme and a signal receiving apparatus is provided. The method includes determining whether there is a need for using an interference cancellation scheme while performing a signal detecting operation; and performing the signal detecting operation using the interference cancellation scheme, or performing the signal detecting operation without using the interference cancellation scheme based on determining whether there is the need for using the interference cancellation scheme.

Abstract: A method of canceling interference by a signal receiving apparatus in a communication system supporting a multi-user Multiple-Input Multiple-Output (MIMO) scheme and a signal receiving apparatus is provided. The method includes determining whether there is a need for using an interference cancellation scheme while performing a signal detecting operation; and performing the signal detecting operation using the interference cancellation scheme, or performing the signal detecting operation without using the interference cancellation scheme based on determining whether there is the need for using the interference cancellation scheme.

Abstract: Disclosed is an apparatus for spinning a test tray and an in-line test handler including the above apparatus, wherein the apparatus may include a supporting unit for supporting a test tray transported between first and second chamber units facing in the different directions, wherein the first chamber unit is provided at a predetermined interval from the second chamber unit; a base unit to which the supporting unit is spinnably connected; and a spinning unit which spins the test tray so that semiconductor devices received in the test tray are tested at the same arrangement in each of the first chamber unit and the second chamber unit.

Abstract: A method for detecting soft-decisions in a 2×2 MIMO system includes detecting all candidate symbol vector sets S in which there exist all values of a real part and an imaginary part, and calculating a log-likelihood ratio (LLR) with respect to the candidate symbol vector sets S from LLR ? ( b k i ) = min s ? S ? ? i , k - ? ED ? ( s ) 2 ? ? n 2 - min s ? S ? ? i , k + ? ED ? ( s ) 2 ? ? n 2 .

Abstract: A method of operating a wireless local area network (WLAN) station. The WLAN station receives at least one desired signal and at least one interference signal from an access point (AP) capable of simultaneously transmitting desired signals to multiple WLAN stations. The method includes estimating a channel and generating a channel matrix estimated based on the estimated channel, separating a channel matrix of the desired signal and a channel matrix of the interference signal from the estimated channel matrix, generating the matrix of a virtual channel by combining the separated channel matrixes, and executing a sphere decoding (SD) algorithm using the matrix of the virtual channel. Or, separating a desired signal and an interference signal from the stream signal based on the analysis result, ascertaining a modulation scheme of the interference signal, and setting the ascertained modulation scheme of the interference signal as decreased lattice points.

Abstract: A method of operating a wireless local area network (WLAN) station. The WLAN station receives at least one desired signal and at least one interference signal from an access point (AP) capable of simultaneously transmitting desired signals to multiple WLAN stations. The method includes estimating a channel and generating a channel matrix estimated based on the estimated channel, separating a channel matrix of the desired signal and a channel matrix of the interference signal from the estimated channel matrix, generating the matrix of a virtual channel by combining the separated channel matrixes, and executing a sphere decoding (SD) algorithm using the matrix of the virtual channel. Or, separating a desired signal and an interference signal from the stream signal based on the analysis result, ascertaining a modulation scheme of the interference signal, and setting the ascertained modulation scheme of the interference signal as decreased lattice points.

Abstract: A method of demodulating a modified dual carrier modulation (MDCM) signal using hard decision includes generating real symbol vector candidates and imaginary symbol vector candidates which correspond to an MDCM signal pair; calculating a first norm between a real part of the MDCM signal pair and each of the real symbol vector candidates and determining as a real symbol vector a real symbol vector candidate that has the minimum first norm among the real symbol vector candidates; and calculating a second norm between an imaginary part of the MDCM signal pair and each of the imaginary symbol vector candidates and determining as an imaginary symbol vector an imaginary symbol vector candidate that has the minimum second norm among the imaginary symbol vector candidates.

Abstract: A method for detecting soft-decisions in a 2×2 MIMO system includes detecting all candidate symbol vector sets S in which there exist all values of a real part and an imaginary part, and calculating a log-likelihood ratio (LLR) with respect to the candidate symbol vector sets S from LLR ? ( b k i ) = min s ? S ? ? i , k - ? ED ? ( s ) 2 ? ? n 2 - min s ? S ? ? i , k + ? ED ? ( s ) 2 ? ? n 2 .

Abstract: Disclosed is an apparatus for spinning a test tray and an in-line test handler including the above apparatus, wherein the apparatus may include a supporting unit for supporting a test tray transported between first and second chamber units facing in the different directions, wherein the first chamber unit is provided at a predetermined interval from the second chamber unit; a base unit to which the supporting unit is spinnably connected; and a spinning unit which spins the test tray so that semiconductor devices received in the test tray are tested at the same arrangement in each of the first chamber unit and the second chamber unit.

Abstract: Disclosed are a facial pack composition and a bathing composition based on loess, and methods for preparing the same. The bathing composition makes a user feel refreshed, prevents arteriosclerosis and fat accumulation in human bodies, is useful for the treatment of maturating diseases such as dermatophytosis and dermatitis and stimulates metabolism and blood circulation system of the human body. Additionally, the facial pack includes loess having a fine particle size sufficient to avoid skin irritation and thus does not adversely affect the skin even if the user uses the pack everyday. The loess is pretreated by a unique aging method and selected additives, so that the far infrared ray-emitting effect of the loess can be maximized. Therefore, it provides skin health-aid and cosmetic effects.

Abstract: Disclosed are a facial pack composition and a bathing composition based on loess, and methods for preparing the same. The bathing composition makes a user feel refreshed, prevents arteriosclerosis and fat accumulation in human bodies, is useful for the treatment of maturating diseases such as dermatophytosis and dermatitis and stimulates metabolism and blood circulation system of the human body. Additionally, the facial pack includes loess having a fine particle size sufficient to avoid skin irritation and thus does not adversely affect the skin even if the user uses the pack everyday. The loess is pretreated by a unique aging method and selected additives, so that the far infrared ray-emitting effect of the loess can be maximized. Therefore, it provides skin health-aid and cosmetic effects.