Abstract: An optical imaging system includes a first lens, a second lens, a third lens, and a fourth lens sequentially disposed from an object side toward an image side on an optical axis, and a reflecting member disposed closer to the object side, as compared to the first lens, and having a reflecting surface configured to change a path of light to be incident to the first to fourth lenses. The first to fourth lenses are disposed to be spaced apart from each other by a preset distance along the optical axis, and 1.3<TTL/BFL<3.5, where TTL is a distance from an object-side surface of the first lens to an imaging plane of an image sensor, and BFL is a distance from an image-side surface of the fourth lens to the imaging plane of the image sensor.

Abstract: Provided is a method for recovering and reusing an active material from a positive electrode scrap.

Abstract: An SSD device comprises a first port linking up with a first host using a first link, a second port linking up with the first host or a second host using a second link, and a port mode controller controlling the first port and the second port to change an operating mode from a dual port mode, in which the first port and the second port operate independently of each other, to a single port mode, in which only the first port operates. The port mode controller controls the second port to reset the second link in a state where the first link is linked up.

Abstract: A Peripheral Component Interconnect Express (PCIe) interface device may include a PCIe layer, a link training module, a PCIe register, and a PCIe controller. The PCIe layer may perform communication between a host and a Direct Memory Access (DMA) device. The link training module may perform a link training for the host. The PCIe register may store data information on the PCIe layer. The PCIe controller may switch an operating clock from a PCIe clock, generated based on a reference clock, to an internal clock, process data of the PCIe layer on the basis of the internal clock, and control the link training module to recover a link for the host, when a reset signal received from the host is asserted or the reference clock is off.

Abstract: A method of supporting divided screen areas and a mobile terminal employing the same are disclosed. The method includes: generating input signals for one of sequentially and simultaneously activating a plurality of user functions; activating the user functions according to generated input signals; dividing a screen into divided screen areas that correspond to activated user functions; and outputting functional view areas associated with the activated user functions to the corresponding divided screen areas.

Abstract: Disclosed is a breeding nuclear fuel mixture including metallic thorium useable in a nuclear power plant, prepared by mixing uranium dioxide (UO2) or plutonium dioxide (PuO2) having ceramic properties with metallic thorium (Th), in order to enable thorium breeding by neutrons released during nuclear fission of U or Pu and conversion of the bred thorium into a novel nuclear fissile material, i.e., U-233, thereby ensuring continuous nuclear fission. The foregoing nuclear fuel mixture may be burned at a reactor core of a nuclear power plant through thorium breeding over a long period of time. Therefore, when the inventive breeding nuclear fuel mixture is employed in a nuclear power plant, utilization of the nuclear power plant may be increased while maximizing conservation of limited uranium resources.