Abstract: Disclosed herein is an iodine-containing radial-shaped macromolecule suitable for an active ingredient of the computed tomography (CT) contrast medium, a method to prepare the same, and a contrast medium composition including the same. With respect to the iodine-containing radial-shaped macromolecule according to the present invention, the duration of contrast enhancement has been significantly improved in comparison to that of the current small molecular contrast media compounds containing iodine.

Abstract: A fluid flow plate for fuel cells may include a first surface and a second surface. The first surface has a first fluid inlet for receiving a first fluid, a plurality of first flow channels extending substantially along a first direction for transporting the first fluid, and a first fluid outlet for releasing the first fluid. The second surface having a second fluid inlet for receiving a second fluid, a plurality of second flow channels extending substantially along the first direction for transporting the second fluid, and a second fluid outlet for releasing the second fluid. The first fluid inlet and the second fluid outlet each is located near a first side of the fluid flow plate, and the first fluid outlet and second fluid inlet each is located near a second side of the fluid flow plate. The second side of the fluid flow plate is opposite to its first side. Each of the first and second flow channels has substantially the same length.

Abstract: A microvalve device is provided that includes a through via located in an island structure supported on a thermally-insulating membrane supported by a frame. The through via is surrounded by a meltable sealing material. A heater element is positioned on the island structure for sealing the material over the through via by heating the sealing material.

Abstract: The present invention relates to a method and a device for providing a current of spin-polarized electrons. More particularly, the present invention is suited for use in spin electronics or detection of spin-polarized electrons.

Abstract: The invention provides methods and compositions relating to differentiated cell populations that derive from pluripotent stem cells. The methods relate to reducing the number of residual stem cells present in such populations. The compositions include differentiated cell populations that contain reduced number of stem cells or that contain no stem cells. Pluripotent stem cells may be reduced in number and/or function through exposure to low oxygen levels.

Abstract: A catalyst for methanation of carbon dioxide. The catalyst is formed by mixing ash from a biomass power plant with a nickel compound and calcining the resulting mixture. The catalyst formed by calcination includes between 2 and 20 wt. % of nickel.

Abstract: A two-far end supported actuator module for a snake robot using an inner wire includes: a module housing having a driving means and a reducer mounted therein, and having a plurality of accommodation portions on an outer surface thereof; an upper cover and a lower cover detachably installed at an upper part and a lower part of the module housing, respectively, wherein the upper cover has a rotation shaft passing hole for passing a rotation shaft therethrough, and the lower cover has a wire passing hole for passing a wire therethrough; a first connection bracket having one side coupled to one accommodation portion of the module housing, and another side coupled to a lower cover of another driving module, and configured to guide the wire thereinto; and a second connection bracket coupled to another accommodation portion of the module housing on the opposite side of the first connection bracket, and another side to which a rotation shaft is inserted to be supported.

Abstract: A light emitting diode includes a semiconductor stacked structure, a substrate, a first electrode, a second electrode and a third electrode. The semiconductor stacked structure includes a first semiconductor layer, a second semiconductor layer and a light emitting layer. The first semiconductor layer has a first surface and a second surface opposite to each other and has a first region and a second region. The second semiconductor layer is disposed on the second surface. The light emitting layer is disposed between the first semiconductor layer and the second semiconductor layer. The substrate has a first conductive layer and a second conductive layer thereon. The first electrode is disposed between the second semiconductor layer and the first conductive layer. The second electrode is disposed on the first surface. The third electrode is disposed between the second region and the second conductive layer, and electrically connected to the second electrode.

Abstract: Disclosed are a personalized advertisement device based on speech recognition SMS services and a personalized advertisement exposure method based on speech recognition SMS services. The present invention provides a personalized advertisement device based on speech recognition SMS services and a personalized advertisement exposure method based on speech recognition SMS services capable of maximizing an effect of advertisement by grasping user's intention, an emotion state, and positional information from speech data uttered by a user during a process of providing speech recognition SMS services, configuring advertisements from when speech data begins conversion to when it has been completely converted by the speech recognition into character strings, and exposing the configured advertisements to a user.

Abstract: A method for extracting a skeleton form a point cloud includes: obtaining inputted point cloud sampling data; contracting the point cloud using an iterative formula and obtaining skeleton branches, the iterative formula is: arg ? ? min X ? ? i ? I = ? ? j ? J ? ? x i - q i ? ? ? ? ( ? x j - q j ? ) + R ? ( X ) , wherein R ? ( X ) = ? i ? I ? ? i ? ? i ? ? I / { i } ? ? ? ( ? x i - x i ? ? ) ? i ? ? x i - x i ? ? , ? ? ( r ) = ? 4 ? ? r 2 h 2 , wherein J represents a point set of the point cloud sampling data, q represents the sampling points in the point set J, I represents a neighborhood point set of the sampling points q, x represents the neighborhood points in the neighborhood point set I.

Abstract: Provided is an apparatus and a method for providing a three-dimensional (3D) broadcasting service that may provide a two-dimensional (2D) fixed broadcasting service using a fixed broadcasting signal or a 2D mobile broadcasting service using a mobile broadcasting signal when a transmitter transmits each of a left image and a right image constituting a 3D image using the fixed broadcasting signal or the mobile broadcasting signal, and the receiver receives the fixed broadcasting signal and the mobile broadcasting signal, or may provide a 3D broadcasting service by composing an image received using the fixed broadcasting signal and an image received using the mobile broadcasting signal into a 3D image.

Abstract: Pharmaceutical compositions including a Myc inhibitor are provided. Also provided are methods for treating cancer including administration of compounds that inhibit oncoprotein Myc.

Abstract: A method of forming a biomass photosensitive material is provided, which includes (1) polymerizing (a) itaconic anhydride and (b) acrylate to form a copolymer, and (2) mixing the copolymer and (c) monomer with a single hydroxy group and a carbon-carbon double bond for a ring-opening addition reaction, wherein the (a) itaconic anhydride and the single hydroxy group of the (c) monomer with the single hydroxy group and the carbon-carbon double bond are reacted in the ring-opening addition reaction.

Abstract: Disclosed is a solar battery which: is made from a silicon semiconductor; has a high quantum-conversion efficiency; requires a small number of production steps during manufacturing; and is capable of being recycled in view of environmental load and material recycling. Specifically, a solar battery according to an embodiment of the present invention has a basic structure of a P—SiN—N junction in which minute silicon clusters are inserted in a P—N junction, and includes a quantum dot layer having a multiple energy level structure consisting of an energy level of a valence band and an energy level of a conduction band, and intermediate energy levels located between both the bands. The quantum dot layer is composed by periodically arranging silicon quantum dots consisting of silicon clusters with an average particle diameter of 2.5 nm or less and an inter-quantum-dot distance of 1 nm or less.

Abstract: Disclosed is a spherical wheel motor including: a spherical rotor having freedom of rotation along surrounding magnetized directions; a stator formed in a dome shape enclosing the rotor and configured to form magnetization at various angles through a plurality of coils distributed therein, and impart the freedom of rotation to the rotor; and a driving unit configured to identify a position of the rotor, supply current to each coil of the stator according to the position of the rotor, and drive the rotor.

Abstract: The present invention generally provides multistage thermoelectric coolers and methods for their fabrication. For example, in one aspect, a multistage thermoelectric cooler is disclosed that includes at least two cooling stages, each of which comprises a p-type leg portion and an n-type leg portion coupled to form a p-n junction. The p-n junctions of the two stages are thermally and electrically coupled such that at least a portion of a current flowing, during operation of the device, through one stage is coupled to the other. Further, at least one of the p- or n-type leg portions of one stage forms a unitary structure with a corresponding p- or n-type leg portion of the other stage.

Abstract: An integrated optomechanical disk vibratory gyroscope device includes a mechanical oscillator having a substantially circular structure. The substantially circular structure is supported by a pillar, and mechanically isolated from a surrounding structure by a gap or slot. One or more actuators are coupled to the mechanical oscillator across the gap or slot. Each of the one or more actuators is configured to excite the mechanical oscillator in a driving mode. One or more optomechanical cavities are disposed substantially in a plane defined by the mechanical oscillator. At least one component of the one or more optomechanical cavities is disposed on or in the substantially circular structure. Each of the at least one or more optomechanical cavities configured to measure a displacement of the mechanical oscillator in a sensing mode. A method of manufacture is also described.

Abstract: The invention provides a light-extraction element, comprising a light-diffusion layer which including a resin; and a plurality of raspberry-like particles uniformly dispersed in the resin, wherein the raspberry-like particles feature a surface with a plurality of round bumps, and the plurality of raspberry-like particles are composed of a material having a single reflective index. The invention also provides a light-emitting device, including a pair of electrodes composed of an anode and a cathode; an organic light-emitting unit disposed between the pair of electrodes, wherein the organic light-emitting unit includes a light-emitting layer; and a light-extraction element which is disposed on a light-emitting surface of the light-emitting device.

Abstract: The disclosure relates to method and apparatus for micro-contact printing of micro-electromechanical systems (“MEMS”) in a solvent-free environment. The disclosed embodiments enable forming a composite membrane over a parylene layer and transferring the composite structure to a receiving structure to form one or more microcavities covered by the composite membrane. The parylene film may have a thickness in the range of about 100 nm-2 microns; 100 nm-1 micron, 200-300 nm, 300-500 nm, 500 nm to 1 micron and 1-30 microns. Next, one or more secondary layers are formed over the parylene to create a composite membrane. The composite membrane may have a thickness of about 100 nm to 700 nm to several microns. The composite membrane's deflection in response to external forces can be measured to provide a contact-less detector. Conversely, the composite membrane may be actuated using an external bias to cause deflection commensurate with the applied bias.