Abstract: A vacuum pump ejector may include ejector body and a nozzle. The ejector body may have a passageway through which fluids may flow. The passageway may have an orifice. The nozzle may inject a purging gas to the orifice. The ejector may decrease a pressure between the vacuum pump and the scrubber, so that the vacuum pump may have improved efficiency. Thus, the vacuum pump may be effectively operated.

Abstract: Provided are a method and an apparatus for predicting a preference rating for content, and a method and an apparatus for selecting sample content in order to predict a preference rating for the content. In the method of predicting a preference rating for the content, a list of users having similar preferences to a target user is extracted from content usage information collected with respect to the same content, and the target user's preference rating for the content is predicted by applying preference rating information of the users with similar preferences to a machine learning algorithm.

Abstract: An image stabilizing apparatus may include a fixing member disposed to a lens assembly having a through hole of which a center coincides with an optical axis of the lens assembly, a moving member disposed to move perpendicular to the optical axis with respect to the fixing member having a lens holder projecting in a direction of the optical axis to hold a compensating lens, a driving portion causing the moving member to move in a first direction perpendicular to the optical axis and in a second direction perpendicular to the optical axis and the first direction, four position determining portions formed in the first direction and the second direction on an outer circumferential surface of the lens holder of the moving member, and four stoppers projecting from an outer circumferential surface of the through hole of the fixing member to the moving member.

Abstract: Disclosed herein are a system for energy storage may include: a unit cell package in which the plurality of unit cells are connected in series and/or in parallel; an input/output terminal connected with the unit cell package to supply energy to the unit cell package or output energy stored in the unit cell package; an interruption switch connected between the unit cell package and the input/output terminal to connect or interrupt the unit cell package and the input/output terminal with and from each other; a slave connected with the plurality of unit cells and/or the unit cell package to monitor voltages of the plurality of unit cells and/or a voltage of the unit cell package; and a master connected with the slave to receive information monitored by the slave and generate a signal for controlling the slave and the interruption switch in accordance with the monitored information.

Abstract: Disclosed are a non-fluorine and non-silicon hydrocarbon-based adhesive composition for substrate surface treatment for inkjet printing, a substrate surface-treated by the composition, and a method for modifying the surface of the substrate by using the composition so as to form fine lines by means of inkjet nano ink. The disclosed composition includes only an epoxy resin, or includes an epoxy resin and an acrylic compound, so as to hydrophobically modify the substrate. The composition can achieve better properties such as an increase in an ink contact angle, an ink spreadability inhibiting effect, and a wiring adhesive strength, as compared to a conventional silicon-based and/or fluorinated adhesive. Furthermore, since a conventional silicon-based and fluorinated adhesive component is not used, it is possible to perform substrate surface treatment in terms of environmental safety, thereby improving the productivity and the economic efficiency.

Abstract: Disclosed herein are a system for management of a transportation device, including: a plurality of work tables disposed to be spaced from each other; charging terminals provided around the work tables; and transportation devices transporting objects between the work tables and including a supercapacitor as a power supply, and a method therefor.

Abstract: The present invention provides a device and a method for stabilizing a voltage of an energy storage capable of performing voltage stabilization in different ways by setting different references when charging or discharging and when standing by. Therefore, system resources consumed for the voltage stabilization of the energy storage can be minimized.

Abstract: Disclosed herein are a device and a method for stabilizing voltage of an energy storage. The device for stabilizing voltage of an energy storage includes: a bypass unit connected to a unit cell in parallel; a controller connected to the unit cell in parallel to monitor voltage of the unit cell and connected to the bypass unit to control turn on/off of the bypass unit; and an analog circuit unit connected to the unit cell in parallel to detect the voltage of the unit cell and turning on the bypass unit when the detected voltage is higher than a preset second reference voltage.

Abstract: A power supply circuit to detect whether or not abnormal current is generated in a power factor compensation circuit and forcibly stop an operation of an interleaved power factor compensation circuit controller if abnormal current is generated. The power supply circuit includes a rectifier, a power factor compensation circuit including a plurality of reactors, a plurality of switches and a plurality of current detectors, a power factor compensation circuit controller to control switching of the switches and to control a power factor compensation operation, and a power factor compensation circuit protection circuit to receive the voltages output from the plurality of current detectors and to stop the operation of the power factor compensation circuit controller if at least one of the voltages output from the plurality of current detectors is abnormal. Thus, it is possible to prevent failure of the switches and the current detectors due to abnormal current.

Abstract: A robot according to the present invention cleans the outer surface of a window/wall by performing automatic movement along the outer surface of the window/wall while being vacuum-sucked onto the outer surface. The robot includes a moving unit for moving the robot in a first direction, a direction changing unit for rotating the moving unit to change a movement direction of the robot, and a cleaning unit mounted on at least one side of the robot. The robot can prevent water used to clean the window or outer wall of a building from being dropped toward a lower story. Also, the robot can run smoothly so that it can achieve a satisfactory cleaning operation without forming spots. The robot uses a turntable system, so that it can also freely change the movement direction thereof about the center thereof up to 360° without requiring any radius of rotation, to easily approach even a dead zone.

Abstract: Disclosed herein is an energy storage module. The energy storage module according to an embodiment of the present invention includes a plurality of capacitor unit cells each having a plus terminal and a minus terminal; and a connection part configured to electrically connect the plus terminal of any one of the capacitor unit cells to the minus terminal of another capacitor unit cell, wherein each of the capacitor unit cells includes an outer case housing an energy storage element, and wherein the outer case includes a protrusion part protruded from one surface of the outer case; and a depression part having a shape matched with the protrusion part and recessed from another surface of the outer case toward inside of the outer case.

Abstract: Provided is a supercapacitor module including a plurality of supercapacitors, a water cooling jacket including containing parts for containing the supercapacitors, respectively, and radiating heat emitted from side surfaces of the supercapacitors, an inlet port for introducing cooling water supplied into the water cooling jacket from the exterior, and an outlet port for releasing the cooling water discharged from the water cooling jacket to the exterior. Therefore, it is possible to provide the supercapacitor module capable of increasing a radiation effect.

Abstract: An apparatus for cleaning floor is disclosed, which is capable of maximizing a user's convenience by an automatic operation, minimizing jolt or vibration generated for its operation, and realizing enhanced endurance and safety, wherein the apparatus includes first and second movable members rectilinearly reciprocating along the same straight line in opposite directions with each other.

Abstract: There is provided an apparatus for equalizing voltage using a time switch. The apparatus for equalizing voltage includes a plurality of energy storage unit cells connected in series; a single first balance capacitor connected with each energy storage unit cell in parallel through the first switch module for equally charging voltage between the plurality of energy storage unit cells; and a first switch module including a plurality of switches disposed between each energy storage unit cell and the first balance capacitor to sequentially open and close the connection between each energy storage unit cell and the first balance capacitor, whereby the voltage unbalance between the energy storage unit cells can be prevented at low cost.

Abstract: There is provided an energy storage module including, a plurality of energy storage units having electrodes connected in series or in parallel, one or more cooling plates provided to alternate with the energy storage units, each having a flow path through which cooling water flows, so as to cool the energy storage units, and a housing surrounding the energy storage units and the cooling plates and including an inlet and an outlet through which the cooling water is drawn and discharged to thereby provide the cooling water to the cooling plates.

Abstract: A smart card includes a first integrated circuit (IC) chip and a second IC chip. The first IC chip receives a read signal from an external read device, and is responsive to the read signal to output a data signal to the external read device based on information data stored in a memory. The second IC chip receives the read signal from the external read device, and is responsive to the read signal to output an anti-skimming signal. The anti-skimming signal interferes with the data signal when both the first and second IC chips are in a read zone of the read device.

Abstract: An energy storage module formed by electrically connecting a plurality of energy storage cells using terminal connecting members which are resistant to corrosion or external impact is disclosed. The energy storage module includes terminal connection members, each including a first plate having a conductive flat bar shape and terminal insertion holes formed in both ends thereof and at least one second plate having the same shape as the first plate and stacked on the first plate, wherein the first plate has an insulating layer formed on lower surface thereof; and at least two energy storage cells having terminals inserted into the terminal insertion holes of the terminal connection members and electrically connected to each other in series or in parallel by the terminal connection members.

Abstract: A method of programming a semiconductor device includes performing an initial program operation on all memory cells included in a selected memory cell block to set threshold voltages of all the memory cells to a voltage equal to or greater than 0 Volts, erasing memory cells of a selected page in the selected memory cell block, and programming the memory cells of the selected page.

Abstract: A vacuum pump ejector may include ejector body and a nozzle. The ejector body may have a passageway through which fluids may flow. The passageway may have an orifice. The nozzle may inject a purging gas to the orifice. The ejector may decrease a pressure between the vacuum pump and the scrubber, so that the vacuum pump may have improved efficiency. Thus, the vacuum pump may be effectively operated.

Abstract: A photographing apparatus includes a third optical group arranged between a second optical group and an iris, and to stabilize hand tremor, and the third optical group is moved along a sphere that has a center based on a predetermined point on an optical axis. As a result, a photographing apparatus has an efficient hand tremor stabilization.