Abstract: A cathode active material including a composite transition metal oxide including: sodium; a first transition metal; and a second transition metal, wherein the composite transition metal oxide has a first diffraction peak corresponding to a Miller index of (003) and derived from a layered rock salt structure, and a second diffraction peak corresponding to a Miller index of (104) and derived from a cubic rock salt structure in an X-ray powder diffraction (XRD) pattern, wherein an intensity ratio (I1/I2) of the first diffraction peak to the second diffraction peak is about 7 or greater.

Abstract: A cathode active material for a magnesium secondary battery, the cathode active material including a composite transition metal oxide which is expressed by Chemical Formula 1 and intercalates and deintercalates magnesium: MgxMa1-yMbyO2+d??Chemical Formula 1 wherein 0?x?1, 0.05?y<0.5, and ?0.3?d<1, and Ma and Mb are each independently a metal selected from the group consisting of Groups 5 to 12 of the Periodic Table.

Abstract: A negative electrode, a lithium battery employing the negative electrode, and a method of preparing the negative electrode. The negative electrode includes a current collector, and a negative electrode active material layer disposed on the current collector. The negative electrode active material layer includes: composite negative electrode active material particles comprising tin (Sn), and conductive metal particles. The conductive metal particles form an intermetallic compound with the Sn, and an average particle size of the conductive metal particles is at least 10 ?m.

Abstract: The present invention relates to an ultrashort pulse laser processing device. The ultrashort pulse laser includes a stage a transfer member, a front confocal microscope, a front laser generating unit, and a front highpowered lens. A sample is provided on the stage to be processed, the transfer member transfers the stage, and the front confocal microscope is provided above the stage. The front laser generating unit is provided between the front confocal microscope and the stage to generate an ultrashort pulse laser, and the front high-powered lens focuses the laser provided from the front laser generating unit.

Abstract: A system for correcting turbo lag may include an engine provided with a plurality of cylinders, an intake manifold for supplying air to the plurality of cylinders, and an exhaust manifold for exhausting exhaust gas generated in the plurality of cylinders, an intake passage connected to the intake manifold so as to supply fresh air to the intake manifold, an exhaust passage connected to the exhaust manifold so as to exhaust the exhaust gas gathered in the exhaust manifold, a turbo charger provided with a turbine mounted at the exhaust manifold or the exhaust passage and rotated by the exhaust gas and a first compressor mounted at the intake passage and connected to the turbine so as to rotate with the turbine and compress the air of the intake passage, a bypass passage branching off at a first point of the intake passage and joining the intake passage at a second point of the intake passage downstream of the first point, a second compressor mounted at the bypass passage and compressing the air passing through

Abstract: A system for correcting turbo lag may include an engine provided with a plurality of cylinders, an intake manifold for supplying air to the plurality of cylinders, and an exhaust manifold for exhausting exhaust gas generated in the plurality of cylinders, an intake passage connected to the intake manifold so as to supply fresh air to the intake manifold, an exhaust passage connected to the exhaust manifold so as to exhaust the exhaust gas gathered in the exhaust manifold, a turbo charger provided with a turbine mounted at the exhaust manifold or the exhaust passage and rotated by the exhaust gas and a first compressor mounted at the intake passage and connected to the turbine so as to rotate with the turbine and compress the air of the intake passage, a bypass passage branching off at a first point of the intake passage and joining the intake passage at a second point of the intake passage downstream of the first point, a second compressor mounted at the bypass passage and compressing the air passing through

Abstract: A negative electrode, a lithium battery employing the negative electrode, and a method of preparing the negative electrode. The negative electrode includes a current collector, and a negative electrode active material layer disposed on the current collector. The negative electrode active material layer includes: composite negative electrode active material particles comprising tin (Sn), and conductive metal particles. The conductive metal particles form an intermetallic compound with the Sn, and an average particle size of the conductive metal particles is at least 10 ?m.

Abstract: Disclosed is an electrode active material comprising: a core layer capable of repeating lithium intercalation/deintercalation; an amorphous carbon layer; and a crystalline carbon layer, successively, wherein the core layer comprises at least two core particles. A secondary battery comprising the same electrode active material is also disclosed. The electrode active material can inhibit variations in volume of the core layer that may occur during repeated charge/discharge cycles, since the core layer comprising at least two core particles, each core particle having an increased area that is in contact with the carbon layer coated thereon. Therefore, the battery using the electrode active material can provide improved cycle life characteristics.

Abstract: The present invention relates to an ultrashort pulse laser processing device. The ultrashort pulse laser includes a stage a transfer member, a front confocal microscope, a front laser generating unit, and a front highpowered lens. A sample is provided on the stage to be processed, the transfer member transfers the stage, and the front confocal microscope is provided above the stage. The front laser generating unit is provided between the front confocal microscope and the stage to generate an ultrashort pulse laser, and the front high-powered lens focuses the laser provided from the front laser generating unit.

Abstract: The present invention relates to an injector clamp for a vehicle and, more particularly, to an injector clamp of a leaf spring type for fixing a piezoelectric injector in a gasoline engine. For this purpose, the present invention provides an injector clamp for a vehicle, of which one side portion is formed as a planar mounting portion to be fixed on a mounting surface of a cylinder head by at least a bolt, a middle portion is formed as a planar extension portion extending from the planar mounting portion to the mounting surface of the cylinder head, and the other portion is formed as an injector supporting portion divided into at least two branches from the planar extension portion and bent convexly downward.

Abstract: Disclosed is an electrode active material comprising: a core layer capable of repeating lithium intercalation/deintercalation; an amorphous carbon layer; and a crystalline carbon layer, successively, wherein the crystalline carbon layer comprises sheet-like carbon layer units, and the c-axis direction of the sheet-like carbon layer units is perpendicular to a tangent direction of the electrode active material particle. A secondary battery comprising the same electrode active material is also disclosed.

Abstract: Disclosed is an electrode active material comprising: a core layer capable of repeating lithium intercalation/deintercalation; an amorphous carbon layer; and a crystalline carbon layer, successively, wherein the core layer comprises at least two core particles. A secondary battery comprising the same electrode active material is also disclosed. The electrode active material can inhibit variations in volume of the core layer that may occur during repeated charge/discharge cycles, since the core layer comprising at least two core particles, each core particle having an increased area that is in contact with the carbon layer coated thereon. Therefore, the battery using the electrode active material can provide improved cycle life characteristics.

Abstract: Disclosed is an electrode active material comprising: a core layer capable of repeating lithium intercalation/deintercalation; an amorphous carbon layer; and a crystalline carbon layer, successively, wherein the crystalline carbon layer comprises sheet-like carbon layer units and partially or totally comprises multilayer sheet-like carbon layer units. A secondary battery comprising the same electrode active material is also disclosed. The electrode active material can inhibit variations in volume of the core layer that may occur during repeated charge/discharge cycles, by virtue of the interstitial volumes formed by the multilayer sheet-like carbon layer units in the crystalline carbon layer. Therefore, the battery using the electrode active material can provide improved cycle life characteristics.

Abstract: Wastewater streams containing various pollutants are economically and efficiently treated at ambient temperature and pressure with hydrogen peroxide, oxygen or ozone in the presence of a heterogeneous catalyst comprising an element selected from the group consisting of Ni, Ru, Co, Fe, Cu, Mn, Li and a mixture thereof supported on a metal oxide selected from the group consisting of MgO, CaO, SnO2, PbO and a mixture thereof.