Abstract: Heat resistant spheroidal graphite cast iron having an improved high temperature tensile strength includes carbon (C) in a range of 3.2-3.4 wt %, silicon (Si) in a range of 4.3-4.8 wt %, manganese (Mn) in a range of 0.2-0.3 wt %, molybdenum (Mo) in a range of 0.8-1.0 wt %, vanadium (V) in a range of 0.4-0.6 wt %, chrome (Cr) in a range of 0.2-0.4 wt %, niobium (Nb) in a range of 0.2-0.4 wt %, inevitable impurities, and a remainder of iron (Fe) based on a total weight of the heat resistant spheroidal graphite cast iron. The heat resistant spheroidal graphite cast iron further includes barium (Ba) in a range of 0.0045-0.0075 wt %. A content ratio of chrome (Cr) and barium (Ba) (Cr/Ba) is in a range from about 26 to about 89.

Abstract: A method of outputting content by a device includes obtaining attribute information about review content that is retrieved by the device; estimating an amount of user's memory about the review content at a preset time based on the obtained attribute information and reference information obtained after the review content is selected; comparing the estimated amount of the user's memory and a threshold value; and changing appearance of the review content in response to the amount of the user's memory being determined as equal to or less than the threshold value.

Abstract: A spheroidal graphite cast iron for a component of an engine exhaust system includes carbon ranging from about 3.0 wt % to about 3.4 wt %, silicon ranging from about 4.2 wt % to about 4.5 wt %, manganese ranging from about 0.1 wt % to about 0.3 wt %, sulfur ranging from about 0.002 wt % to about 0.01 wt %, phosphorous in a range equal to or less than about 0.05 wt %, magnesium ranging from about 0.035 wt % to about 0.055 wt %, molybdenum ranging from about 0.9 wt % to about 1.2 wt %, nickel ranging from about 0.2 wt % to about 0.5 wt %, vanadium ranging from about 0.4 wt % to about 0.6 wt %, niobium ranging from about 0.1 wt % to about 0.4 wt %, cerium ranging from about 0.005 wt % to about 0.01 wt %, aluminum ranging from about 0.003 wt % to about 0.007 wt %, and a remainder of iron.

Abstract: The present disclosure relates to technology for a sensor network, machine to machine (M2M) communication, machine type communication (MTC), and internet of things (IoT). The present disclosure may be applied to intelligent services (e.g., smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail, and security and safety-related services) based on the technology. Provided are a method, an apparatus and a recording medium in which a terminal receives additional content corresponding to a captured image from a server by using a wireless communication device, and provides the additional content, based on a signal detected by a user interaction region.

Abstract: The present disclosure is related to technology for a sensor network, machine to machine (M2M) communication, machine type communication (MTC), and Internet of Things (IoT). Provided is a method of providing content, performed by a device, the method including: outputting content from the device; determining a learning state of the user with respect to the content, based on biometric information of a user received from a sensing device; changing the content, based on the determined learning state of the user; and outputting changed content. The present disclosure is applicable to intelligent services based on various technology (e.g., smart home, smart building, smart city, smart car or connected car, health care, digital education, retail business, security, and safety-related service).

Abstract: A WiFi wireless rear view parking system comprises a main body, a camera sensor, a Wifi transmission module, a mobile personal electronic device, and a switch. The main body is installed at a license plate of an automobile. The camera sensor is provided in the main body for sensing images and video of rear regions of the automobile and generating images and video data. The Wifi transmission module transmits the image and video data from the camera. The mobile personal electronic device is for receiving image and video data transmitted by the Wifi transmission module and displaying them. The switch is provided in the display device or the mobile personal electronic device and configured for switching orientation of a view by flipping reverse and non-reverse, wherein the view is displayed on the mobile personal electronic device. The WiFi wireless rear view parking system provides rear view of the automobile to a driver. The mobile personal electronic device includes a smartphone.

Abstract: The present disclosure relates to a manufacturing method of high-strength flake graphite cast iron, the high-strength flake graphite cast iron manufactured by the method, and an engine body including the cast iron, and more particularly, to flake graphite cast iron and a manufacturing method thereof, wherein the flake graphite cast iron has a uniform graphite shape and low probability of forming chill and has high tensile strength of at least 350 MPa and excellent workability and fluidity by controlling the content of manganese (Mn) and a trace of strontium (Sr), which are included in the cast iron, within a specific ratio.

Abstract: Disclosed is a method of displaying an object on a device. The method includes specifying a first object displayed on a screen from among a plurality of objects including order information, displaying, on the screen, a second object corresponding to an object information area selected from among a plurality of object information areas indicating the plurality of objects displayed together with the first object based on the order information, and changing an object displayed on the screen to the specified first object when a return input for the specified first object is received.

Abstract: The present disclosure relates to flake graphite cast iron having high workability and a preparation method thereof, and more particularly, to flake graphite cast iron with a uniform graphite shape, low chill formability, a high strength such as a tensile strength of 350 MPa or more, and excellent workability and fluidity by controlling each of the contents of manganese (Mn) and sulfur (S) and carbon (C) and silicon (Si) included in the cast iron and a carbon equivalent (CE) to predetermined ratios, and a preparation method thereof.

Abstract: Heat resistant spheroidal graphite cast iron having an improved high temperature tensile strength includes carbon (C) in a range of 3.2-3.4 wt %, silicon (Si) in a range of 4.3-4.8 wt %, manganese (Mn) in a range of 0.2-0.3 wt %, molybdenum (Mo) in a range of 0.8-1.0 wt %, vanadium (V) in a range of 0.4-0.6 wt %, chrome (Cr) in a range of 0.2-0.4 wt %, niobium (Nb) in a range of 0.2-0.4 wt %, inevitable impurities, and a remainder of iron (Fe) based on a total weight of the heat resistant spheroidal graphite cast iron. The heat resistant spheroidal graphite cast iron further includes barium (Ba) in a range of 0.0045-0.0075 wt %. A content ratio of chrome (Cr) and barium (Ba) (Cr/Ba) is in a range from about 26 to about 89.

Abstract: A spheroidal graphite cast iron for a component of an engine exhaust system includes carbon ranging from about 3.0 wt % to about 3.4 wt %, silicon ranging from about 4.2 wt % to about 4.5 wt %, manganese ranging from about 0.1 wt % to about 0.3 wt %, sulfur ranging from about 0.002 wt % to about 0.01 wt %, phosphorous in a range equal to or less than about 0.05 wt %, magnesium ranging from about 0.035 wt % to about 0.055 wt %, molybdenum ranging from about 0.9 wt % to about 1.2 wt %, nickel ranging from about 0.2 wt % to about 0.5 wt %, vanadium ranging from about 0.4 wt % to about 0.6 wt %, niobium ranging from about 0.1 wt % to about 0.4 wt %, cerium ranging from about 0.005 wt % to about 0.01 wt %, aluminum ranging from about 0.003 wt % to about 0.007 wt %, and a remainder of iron.

Abstract: There are provided a fingerprint sensor and an electronic device including the same. The fingerprint sensor includes a glass panel; a plurality of transducers arranged on edge regions of the glass panel, the plurality of transducers emitting ultrasonic wave signals toward inner surfaces of the glass panel and receiving the ultrasonic wave signals reflected from the inner surfaces of the glass panel; and a fingerprint sensing unit sensing a fingerprint based on the ultrasonic wave signals received by the plurality of transducers, the fingerprint sensing unit sequentially driving the plurality of transducers.

Abstract: Disclosed herein are an apparatus and a method for producing aluminum nitride powder, and aluminum nitride powder prepared thereby. The apparatus for producing aluminum nitride powder includes: a vertical reactor including an aluminum source supplier for supplying aluminum source and a nitrogen source supplier for supplying nitrogen source, the vertical reactor causing chemical vapor reaction between the aluminum source and the nitrogen source supplied therein; a trap device including a membrane for passing resulting products from the reaction; and a bubbling device for capturing the products having passed through the trap device.

Abstract: A method of controlling a device includes determining a distance between the device and a hovering inputter; determining 3-dimensional (3D) location information of a hovering input based on the distance; selecting a task among a plurality of tasks corresponding to an operation of an application executed by the device and the 3D location information of the hovering input; determining a class of an execution input according to the hovering input; and performing the selected task according to the determined class of the execution input.

Abstract: An electronic device and item information providing are provided. The electronic device includes a communication module configured to receive item information of at least one item from a management server, a display configured to display a user interface including the item information, an input module configured to receive a user input selecting an item from among the displayed item information, a sensor module configured to collect motion data of the electronic device, and a control module configured to check a mission corresponding to the selected item and to transmit mission performance information, obtained based on the motion data, to the management server through the communication module.

Abstract: A WiFi wireless rear view parking system comprises a main body, a camera sensor, a Wifi transmission module, a mobile personal electronice device. The main body is installed at a license plate of an automobile. The camera sensor is provided in the main body for sensing images and video of rear regions of the automobile and generating images and video data. The Wifi transmission module transmits the image and video data from the camera. The mobile personal electronic device is for receiving image and video data transmitted by the Wifi transmission module and displaying them. The WiFi wireless rear view parking system provides rear view of the automobile to a driver. The mobile personal electronic device includes a smartphone.

Abstract: A method of outputting content by a device includes obtaining attribute information about review content that is retrieved by the device; estimating an amount of user's memory about the review content at a preset time based on the obtained attribute information and reference information obtained after the review content is selected; comparing the estimated amount of the user's memory and a threshold value; and changing appearance of the review content in response to the amount of the user's memory being determined as equal to or less than the threshold value.

Abstract: A WiFi wireless rear view parking system comprises a main body, a camera sensor, a Wifi transmission module, a Wifi reception module, and a display device. The main body is installed at a license plate of an automobile. The camera sensor is provided in the main body for sensing images and video of rear regions of the automobile and generating images and video data. The Wifi transmission module transmits the image and video data from the camera. The Wifi reception module is provided in the automobile for receiving image and video data transmitted by the Wifi transmission module. The display device is provided in the automobile for displaying the images and video data received by the Wifi reception module. The WiFi wireless rear view parking system provides rear view of the automobile to a driver. The WiFi wireless rear view parking system may comprise a microphone and a speaker.

Abstract: A method of displaying an object on a device, is provided. The method includes generating identification information of objects of interest selected from objects available for displaying on the device based on preset sequence information, and determining sequence information of an object displayed on the device among the available objects. The method further includes based on an input, displaying an object of interest corresponding to previous sequence information or following sequence information of the determined sequence information, among the objects of interest.

Abstract: A pharmaceutical composition and a food composition including extracts of Monsonia sp. for treating dementia, which compositions inhibit the formation of ?-amyloid, and a method of preparing the extracts.