Abstract: An example hydrogen liquefaction apparatus is disclosed. The apparatus includes an outer container; a liquefaction container positioned at least partially within the outer container; a heat pipe positioned within the liquefaction container. The head pipe includes a condensing portion, an evaporating portion, an inner tube portion containing a working fluid and operatively coupling the condensing portion to the evaporating portion, and an outer tube portion surrounding the inner tube portion and defining a dual tube region between the outer tube and the inner tube. Also included is a cryocooler in thermal communication with the liquefaction container, a pre-cooling tube, and an ortho-para converting part having a catalyst configured to induce an ortho-para conversion of gaseous hydrogen within the pre-cooling tube.

Abstract: Disclosed is a water treatment apparatus that includes a head including an inlet portion into which water flows, an outlet portion from which water is discharged externally, and a connection portion connected to the inlet portion and the outlet portion, and a water treatment unit connected to the connection portion, including a plurality of water treatment sections, coupled to the head, and configured such that a portion of the water flowing into the inlet portion passes through the plurality of water treatment sections and sequentially, the remainder of the water passes through only a portion of the plurality of water treatment sections and, and the water flows to the outlet portion together.

Abstract: Disclosed are an apparatus and a method of delivering content between applications. Content which is to be delivered from a source application to a target application may be extracted according to a user input signal, a content type describing object and a content extraction scheme corresponding to a content type. For example, the source application may be a web application including information received through a network, and the target application may be a local application which is executed using information stored in the apparatus, and vice versa.

Abstract: An apparatus for generating depth information includes: a receiver which receives a two-dimensional (2D) image signal including a plurality of frames; a user input unit; a user interface (UI) generator which generates a tool UI to input guide information for generating depth information; a display unit which displays a frame for which depth information is generated among the plurality of frames, and the generated tool UI; and a depth information generator which generates depth information corresponding to the guide information input by the user input unit through the tool UI.

Abstract: Disclosed are an apparatus and method enabling a user to efficiently share contents. A user of an electronic device performs an image capturing by use of a camera, thereby generating an image capture event. According to the image capture event, the electronic device obtains address information of a content transferring apparatus and transfers a content requesting message to the content transferring apparatus having the address information. Upon reception of the content requesting message, the content transferring apparatus provides the electronic device with contents in execution and status information of the content. The electronic device uses the content and the status information to restore a status of the content which has been executed in the content transferring apparatus.

Abstract: An evaporative humidifier for a polymer electrolyte membrane fuel cell system including a fuel cell stack, comprising: a condensation channel to which exhaust gas from the fuel cell stack is introduced; an evaporation channel to which supply gas for the fuel cell stack is introduced; a partition wall for separating the condensation channel and the evaporation channel from each other; and a water distribution unit for supplying water into the evaporation channel, wherein the water is condensed in the condensation channel by heat exchange between the exhaust gas and the supply gas.

Abstract: Disclosed are an apparatus and method enabling a user to efficiently share contents. A user of an electronic device performs an image capturing by use of a camera, thereby generating an image capture event. According to the image capture event, the electronic device obtains address information of a content transferring apparatus and transfers a content requesting message to the content transferring apparatus having the address information. Upon reception of the content requesting message, the content transferring apparatus provides the electronic device with contents in execution and status information of the content. The electronic device uses the content and the status information to restore a status of the content which has been executed in the content transferring apparatus.

Abstract: A heat exchanger having an extended surface plate includes a plurality of heat exchanging bodies having therein flow paths along which a heat transfer medium flows, and extended surface plates each disposed between the heat exchanging bodies and having inclined surfaces in horizontal and vertical directions. Also disclosed is a dehumidifier having the heat exchanger. Moisture in the air may be effectively absorbed by a dehumidifying liquid, and the heat exchanger may have enhanced structural strength.

Abstract: Disclosed is a fuel cell including, a stack having fuel channels through which fuel flows and air channels through which air flows, the fuel channels and air channels being located at both sides of a reaction film, an actuator disposed to be involved in the air channels, the actuator allowing external air of the stack to affect the air channels, and a skirt extending from the stack with communicating with the air channels.

Abstract: The present invention relates to a theanine derivative, a preparation method thereof, and a use thereof for anti-acne treatment, having a selective inhibitory effect on Propionibacterium acnes in the skin.

Abstract: The present invention relates to a theanine derivative, a preparation method thereof, and a use thereof for anti-acne treatment, having a selective inhibitory effect on Propionibacterium acnes in the skin.