Abstract: A swirl mixer for mixing a reducing agent with exhaust gas in a selective catalytic reduction (SCR) aftertreatment system is described. The swirl mixer may comprise a base permitting a flow of the reducing agent and the exhaust gas therethrough, and three arrays of fins projecting from the base in a direction of flow of the exhaust gas. The three arrays of fins may be arranged in a triangular configuration about a center of the mixer to induce a swirl motion to the reducing agent and the exhaust gas flowing through the mixer. The fins in each of the arrays may be oriented in a common direction that is rotated by about 60° from the common direction of the fins in an adjacent array.

Abstract: A method of forming a pattern of a semiconductor device includes forming a lower film on a substrate having a first surface and a second surface at different levels, forming an upper film of hydrophobic material on the lower film, forming a block copolymer film on the upper film, phase-separating the block copolymer film to form first patterns spaced apart from one another and a second pattern spanning the first patterns and interposed between a bottom surface of each of the first patterns and the upper film, removing the first patterns, and performing an etch process using the second pattern or a residual part of the second pattern as an etch mask.

Abstract: The present disclosure relates to an electronic device and a method of operating the same. The electronic device includes a necklace band, and a first component connected to the necklace band. The first component includes a first magnet located on a first surface of a housing of the first component, a first connection unit located on the first surface of the housing of the first component, and electrically connectable to a second connection unit located on a first surface of a housing of a second component, and a controller configured to connect the first connection unit and the second connection unit when the first magnet is attached to a second magnet located on the first surface of the housing of the second component, and receive power from the second component through the first connection unit connected with the second connection unit.

Abstract: The present invention is a clip for securing more than two rebar rods. The rods may be secured in a planar or three-dimensional lattice configuration. In a planar configuration, the clip accommodates two parallel rebar rods and a third rod perpendicular to the first two. Alternatively, the clip may secure three mutually perpendicular rods. The clip is constructed of at least two mutually perpendicular planar surfaces. Each planar surface is recessed in a seat for holding a rod. Each seat has a semicircular arch where the rod sits, with an optional rectangular opening for inserting the rod. In a preferred embodiment, the clip has five seats. Two seats are parallel with a coincident axis in the x-direction. Two other seats are side-by-side with parallel axes in the y-direction. Another seat has an axis in the z-direction. Each rod is held in place by other rods.

Abstract: A dual mixer for mixing a reducing agent with exhaust gas in a mixing section of a selective catalytic reduction (SCR) aftertreatment system is disclosed. The dual mixer may comprise a first mixer including a grid and a plurality of trapezoidal fins projecting from the grid in a direction of flow of the exhaust gas. The dual mixer may further comprise a swirl mixer positioned downstream of the first mixer and separated therefrom by a distance. The swirl mixer may include a base and three arrays of swirl fins projecting from the base in the direction of flow of the exhaust gas. The swirl fins in each of the arrays may be oriented in a common direction that is rotated by about 60° from the common direction of the swirl fins in an adjacent array.

Abstract: A swirl mixer for mixing a reducing agent with exhaust gas in a selective catalytic reduction (SCR) aftertreatment system is described. The swirl mixer may comprise a base permitting a flow of the reducing agent and the exhaust gas therethrough, and three arrays of fins projecting from the base in a direction of flow of the exhaust gas. The three arrays of fins may be arranged in a triangular configuration about a center of the mixer to induce a swirl motion to the reducing agent and the exhaust gas flowing through the mixer. The fins in each of the arrays may be oriented in a common direction that is rotated by about 60° from the common direction of the fins in an adjacent array.

Abstract: The present disclosure relates to a holographic display system including: a projection object having a three-dimensional shape corresponding to an original item; an image projection unit comprising projectors projecting unit images of parts selected from a three-dimensional image of the original item on the projection object; and a reflector disposed adjacent to the projection object and reflecting images reflected from the projection object to provide an augmented three-dimensional holographic image. In the disclosure, the unit images corresponding to a three-dimensional image of an original item are projected on the projection object having a three-dimensional shape corresponding to the original item using the projectors and reflected by the projection object and augmented by the reflector, thereby providing a virtual image having three dimensional information corresponding to the original item, whereby a proper image is provided to an observer even when the viewpoint of the observer is changed.

Abstract: A slim card connector is provided. The slim card connector includes a board in which a plurality of openings are arranged at an interval and a plurality of contact terminals provided in the board to be received in the openings, wherein the contact terminals are received in the openings, respectively, when the contact terminals are in contact with a card.

Abstract: A mixing system for an aftertreatment system is disclosed. The mixing system includes a mixing tube. The mixing tube is provided in fluid communication with an exhaust conduit. The mixing system also includes a reductant injector positioned at an injection location on the mixing tube. The mixing system further includes a mixer assembly positioned downstream of the injection location. The mixer assembly includes a plurality of mixing elements provided in a series arrangement, such that each of the plurality of mixing elements is provided downstream of one another.

Abstract: A method of forming a micropattern, a substrate surface inspection apparatus, a cantilever set for an atomic force microscope, and a method of analyzing a surface of a semiconductor substrate, and a probe tip the method including forming pinning patterns on a semiconductor substrate; forming a neutral pattern layer in spaces between the pinning patterns; and inspecting a surface of a guide layer that includes the pinning patterns and the neutral pattern layer by using an atomic force microscope (AFM).

Abstract: An actively powered wearable weather radar detection device may include a battery, at least one microstrip antenna, and a microcontroller electrically coupled to the battery and the at least one microstrip antenna. The microstrip antenna may be configured to receive a weather radar signal from an airplane, convert the weather radar signal into an electrical signal, and output the electrical signal. The microcontroller may be configured to determine, based on the electrical signal, whether to output an alert signal, and responsive to determining to output an alert signal, send a command signal to an alert device causing the alert device to output the alert signal.

Abstract: A method of forming a fine pattern includes forming pillar-shaped guides regularly arranged on a feature layer, forming a block copolymer layer on the feature layer around the pillar-shaped guides, phase separating the block copolymer layer, forming first domains regularly arranged on the feature layer with the pillar-shaped guides, forming a second domain on the feature layer surrounding the pillar-shaped guides and the first domains, removing the first domains, and forming holes corresponding with the first domains in the feature layer by etching the feature layer using the pillar-shaped guides and the second domain as etch masks. The block copolymer layer includes a polymer blend having first and second polymer blocks having first and second repeat units, respectively, a first homopolymer and a second homopolymer. The first domains include the first polymer block and the first homopolymer, and the second domain includes the second polymer block and the second homopolymer.

Abstract: An electronic device is provided and includes a housing including a portion that is detachably mountable on one of a user's ears, a wireless communication circuit, a battery, a speaker, at least one sensor included in the housing, a processor electrically connected to the wireless communication circuit, the battery, the speaker, and the at least one sensor, and a memory electrically connected to the processor so that the processor can request a connection from an external device configured to be detachably mounted on another one of the user's ears, determine a portion to be output from the audio data stored in the memory based on whether a response of the external device for the request for the connection is received or at least a portion of at least one signal is received from the external device by formation of the requested connection, and output the determined portion through the speaker.

Abstract: A method of controlling a mobile communication terminal including a first antenna and a second antenna is provided. The method includes receiving transmission data to be transmitted, applying first power smaller than a first threshold value to the first antenna, applying second power smaller than the first threshold value to the second antenna, and cooperatively transmitting the transmission data based on the first power and the second power, respectively, by the first antenna and the second antenna, wherein a sum of the first power and the second power is larger than a second threshold value.

Abstract: Techniques for suppression of motion artifacts in medical imaging include obtaining projections at different times within a time interval from a medical imaging system operating on a subject. A stationary projection is determined for a first subset of the projections in which a signal source and detector array of the imaging system are in a first configuration relative to the subject. An image of the subject based on the stationary projection is displayed. For any subset, the stationary projection is a minimum value for each pixel among the subset of projections if a signal passing through a moving object of interest inside the subject is expected to cause an increase in a pixel value. Alternatively, the stationary projection is a maximum value for each pixel among the subset of projections if the signal passing through the object of interest is expected to cause a decrease in a pixel value.

Abstract: An electronic device is provided. The electronic device includes a wireless communication circuit; a processor connected to the communication circuit; and a memory connected to the processor, wherein the processor is configured to establish a connection to a first and second earpiece by the wireless communication circuit; receive, from the first earpiece, a first data related to a charging level of a first battery included in the first earpiece by the communication circuit; receive, from the first earpiece or the second earpiece, a second data that is related to a charging level of a second battery in the second earpiece by the communication circuit; and transmit, to at least one of the first earpiece or the second earpiece, one or more control signals that enable the first earpiece and the second earpiece to operate differently from each other based on the first and second data.

Abstract: A mixer is disclosed for use in a reductant dosing system. The mixer may have an impingement floor located within an intended fluid injection path and generally parallel with a flow direction through the mixer. The mixer may also have a first side wall connected along a lengthwise edge of the impingement floor, a second side wall connected along an opposing lengthwise edge of the impingement floor, and a plurality of shelves extending between the first and second side walls. The plurality of shelves each may include a plurality of vanes that promote mixing of an injected fluid. One or more of the plurality of shelves may extend different distances upstream opposite the flow direction.

Abstract: The present inventive concept provides a method of forming a fine pattern including forming a plurality of pillar-shaped guides that are regularly arranged on a feature layer.

Abstract: In a method of forming patterns, an object layer is formed on a substrate. Guide patterns are formed on the object layer. A brush layer is formed using a brush polymer on surfaces of the guide patterns. The brush polymer includes at least one of a first brush polymer and a second brush polymer. The first brush polymer includes a hydrophobic repeating unit and a hydrophilic terminal group having at least two hydroxyl groups. The second brush polymer includes a hydrophobic repeating unit and a hydrophilic random repeating unit having a hydroxyl group. A self-aligned layer is formed using a block copolymer on the brush layer to form blocks aligned around the guide patterns. At least a portion of the blocks is transferred to the object layer.

Abstract: A variety of elastomeric-based microfluidic devices and methods for using and manufacturing such devices are provided. Certain of the devices have arrays of reaction sites to facilitate high throughput analyzes. Some devices also include reaction sites located at the end of blind channels at which reagents have been previously deposited during manufacture. The reagents become suspended once sample is introduced into the reaction site. The devices can be utilized with a variety of heating devices and thus can be used in a variety of analyzes requiring temperature control, including thermocycling applications such as nucleic acid amplification reactions, genotyping and gene expression analyzes.