Abstract: A flange, and a pipe and a flange structure and, more particularly, to a pipe and a flange structure, which allows the pipe connection and the assembling of an expansion valve of a vehicle air conditioner using two or more evaporators.

Abstract: According to the present invention, a burner for a water heater located upstream of a combustion chamber on the basis of a reference direction, which is a flow direction of a combustion gas generated by a combustion reaction, comprises a plate-shaped distribution plate for generating a combustion reaction, wherein: when one direction orthogonal to the reference direction is referred to as a longitudinal direction, and a direction perpendicular to the reference direction and the longitudinal direction is referred to as a width direction, a plurality of through-holes formed through the distribution plate along the reference direction so that a mixture of fuel and air for the combustion reaction pass through, are formed to be spaced apart from each other in the longitudinal direction and the width direction.

Abstract: Provided are a method of detecting chromosomal aneuploidy of a targeted fetal chromosome, and a computer-readable medium having recorded thereon a program to be applied to performing the method. According to the present disclosure, fetal chromosomal aneuploidy may be non-invasively and prenatally diagnosed with excellent sensitivity and specificity.

Abstract: Provided are a method of detecting chromosomal aneuploidy of a targeted fetal chromosome, and a computer-readable medium having recorded thereon a program to be applied to performing the method. According to the present disclosure, fetal chromosomal aneuploidy may be non-invasively and prenatally diagnosed with excellent sensitivity and specificity.

Abstract: Provided are a method of detecting chromosomal aneuploidy of a targeted fetal chromosome, and a computer-readable medium having recorded thereon a program to be applied to performing the method. According to the present disclosure, fetal chromosomal aneuploidy may be non-invasively and prenatally diagnosed with excellent sensitivity and specificity.

Abstract: Disclosed is an apparatus and method for inputting keys using biological signals in an HMD (Head Mounted Display) mobile information terminal. The apparatus provides a virtual screen that includes a key map and a preview window to a user through a display unit having a micro-display, recognizes and inputs a key selected according to the user's biological signals sensed through a biological signal sensing unit having an EOG (Electrooculogram) input unit and an EMG (Electromyogram) input unit for sensing and receiving the biological signals as key inputs. The apparatus recognizes through a recognition unit the key selected according to the user's biological signals sensed through a biological signal sensing unit. The user can freely use the HMD mobile communication terminal without using his/her hands because the user can input his/her desired key to the HMD information terminal only by the movement of the user's eyes and the biting of his/her right and left back teeth.

Abstract: An apparatus and method for inputting a key input in an information terminal integrated with an HMD. The user is provided with a virtual screen, including a key map and a preview window, as a display screen via a display unit having a micro display. A detection signal generation unit generates signals, which are sensed by a detection signal sensing unit and recognized by a recognition unit, so that a telecommunication terminal can recognize the user's motion without any separate HMD input device. Therefore, the user can input a desired key to an information terminal simply by moving their hands without any separate input device. This further improves the portability of the information terminal.