Abstract: A mixed refrigerant composition includes carbon dioxide (R-744), 2,3,3,3-tetrafluoropropene (R-1234yf) and 1,1-difluoroethane (R-152a). A content of the carbon dioxide (R-744) ranges from 1 to 10 wt. % based on a total weight of the mixed refrigerant composition, and a content of the 2,3,3,3-tetrafluoropropene (R-1234yf) ranges from 65 to 95 wt. % based on the total weight of the mixed refrigerant composition, and a content of the 1,1-difluoroethane (R-152a) ranges from 1 to 30 wt. % based on the total weight of the mixed refrigerant composition. A boiling point at 1 atm of the mixed refrigerant composition ranges from ?65 to ?30° C.

Abstract: A mixed refrigerant composition includes carbon dioxide (R-744), 2,3,3,3-tetrafluoropropene (R-1234yf) and trifluoroiodomethane (R-13I1). A content of the carbon dioxide (R-744) ranges from 1 to 10 wt. % based on a total weight of the mixed refrigerant composition, and a sum of a content of the 2,3,3,3-tetrafluoropropene (R-1234yf) and a content of the trifluoroiodomethane (R-13I1) ranges from 90 to 99 wt. % based on the total weight of the mixed refrigerant composition. A boiling point at 1 atm of the mixed refrigerant composition ranges from ?76 to ?35° C.

Abstract: A display device includes a bank including an opening defining a plurality of pixels; a plurality of light emitting elements disposed in the plurality of pixels; a color conversion layer disposed on the plurality of light emitting elements in the opening; and a low refractive layer disposed on the color conversion layer in the opening.

Abstract: A signal processing apparatus detects a phase difference between two signals by applying the Lissajous figure and compensates for an error between the signals by recognizing a pattern, thereby easily detecting the phase difference between the signals.

Abstract: A signal processing apparatus detects a phase difference between two signals by applying the Lissajous figure and compensates for an error between the signals by recognizing a pattern, thereby easily detecting the phase difference between the signals.

Abstract: An apparatus is disclosed which can shape fruits and root and tuberous vegetables. The shaping apparatus is operated in such a manner that: when root and tuberous vegetable or fruit is placed in a cutting blade case and rotated, the object is spirally tracked and the spirally tracked object is removed from the lower side of the cutting blade case, so that the spirally tracked object is picked up by an additional stick and then ornamented into various forms. The shaping apparatus allows fruits and root and tuberous vegetables to be easily treated in a variety of ways, as per the second process, thereby enhancing the product value of processed foodstuffs produced from the first process.

Abstract: A universal serial bus (USB) type wireless data card is used for wireless communication in a multi-in/multi-out (MIMO) environment. The USB type wireless data card includes a card body. A USB connector is installed at a first end of the card body and is connectable to a USB port of an electronic device. An antenna part includes a first antenna and a second antenna rotatable with respect to the card body to be spaced apart from the electronic device.

Abstract: An apparatus is disclosed which can shape fruits and root and tuberous vegetables. The shaping apparatus is operated in such a manner that: when root and tuberous vegetable or fruit is placed in a cutting blade case and rotated, the object is spirally tracked and the spirally tracked object is removed from the lower side of the cutting blade case, so that the spirally tracked object is picked up by an additional stick and then ornamented into various forms. The shaping apparatus allows fruits and root and tuberous vegetables to be easily treated in a variety of ways, as per the second process, thereby enhancing the product value of processed foodstuffs produced from the first process.

Abstract: A communication switching system comprising a first time counter for registering a starting time of a communication service, the first time counter adapted to change the present reference time according to a request given during the communication service, a second time counter for registering the beginning and the ending time of the communication service, the second time counter not responsive to the request to change the present reference time during the communication service, and a main processor for computing a service charge for the communication service based on the time difference between the beginning time and the ending time registered in the second time counter in reference to the starting time registered in the first time counter, wherein a subscriber is charged according to the exact call time used for the communication service.