Abstract: A power supply circuit includes a load, a chargeable battery, a discharging circuit, a charging circuit, an adapter, and a control circuit. When the adapter operates normally, the control circuit measures a voltage of the chargeable battery, and controls the charging circuit to charge the chargeable battery when the voltage of the chargeable battery is less than a preset value. The control circuit measures a charging current and a temperature of the chargeable battery, and regulates the charging current through the charging circuit according to the measured charging current and temperature. The adapter provides a voltage to the load through the discharging circuit. When the adapter is powered off, the control circuit does not sense a voltage a voltage from the adapter. The control circuit controls the chargeable battery to power the load through the discharging circuit.

Abstract: A water-cooling structure for electric motor includes a motor main body, a heat-dissipation base, and a vortex-forming section. The motor main body is externally fitted around the heat-dissipation base. The heat-dissipation base is provided around an outer circumferential surface with at least one main flow passage. The vortex-forming section is provided in the main flow passage to create vortex effect on a type of cooling liquid flowing in the main flow passage, so as to enable an increased heat transfer efficiency of the water-cooling structure.

Abstract: A computerized method implemented by a computing device that converts two one-dimensional data source controls into a single two-dimensional data source control. A target webpage having at least two one-dimensional data source controls is loaded from a storage of the computing device. Reference information of a first control and a second control of the target webpage are acquired, and one-dimensional data source and columns of each of the first control and the second control are acquired according to the reference information. The first control and the second control are converted into the single two-dimensional data source control according to the one-dimensional data source and columns of each of the first control and the second control. The first control and the second control are deleted from the target webpage, and the two-dimensional data source control is displayed on the target webpage.

Abstract: A flywheel includes a disc mounted around a central shaft. An energy-storing section and an energy-releasing section are defined in two sides of the second side. A plurality of rods is slideably mounted on the disc. The rods are arranged in a radiant manner and spaced from one another in a circumferential direction about the central shaft. Each rod has an inner end spaced from the central shaft and an outer end having a spacing to the central shaft larger than the inner end. Each rod slides toward the central shaft under action of gravitational force while the rod is moving through an upper portion of the energy-storing section. Each rod slides away from the central shaft under action of the gravitational force while the rod is moving through a lower portion of the energy-releasing section. A plurality of weights is respectively mounted to the outer ends of the rods.

Abstract: A method for managing display of a widget, the widget is displayed in a form of a predetermined textbox on a user interface before the widget has got focus. When the widget has got focus, corresponding functions of the widget are executed, and preset original data of the widget is displayed through the widget. When the widget has lost focus, the display of the widget is reverted to the predetermined textbox, and inputted or selected information by the user through the widget is displayed in the predetermined textbox.

Abstract: A street lamp includes a lamp post and a lamp housing mounted on a distal end of the lamp post. An alternating current cable is received in the lamp post. A light source is received in the lamp housing. A power supplying device is electrically connected to the light source via a connecting cable. A connection device includes an Edison screw socket and an Edison male screw plug being detachably and threadedly engaged in the Edison screw socket. The Edison screw socket is electrically coupled to the alternating current cable, and the Edison male screw plug is electrically and mechanically coupled to the power supplying device. The power supplying device is configured for converting an alternating current into direct current and supplying the direct current to the light source.

Abstract: An apparatus for reminding a user of overlong access to a webpage is provided. The apparatus typically includes a communicating module, a timing module, and a control module. The communicating module transmits to a network server a request by the user to be logged into the network server, and accesses a webpage of the network server. The timing module times an elapse time of the webpage being not operated by the user. The control module sends a reminder to the user to operate the webpage when the elapse time has reached a reminding time. The control module stores information which was edited on the webpage and webpage content if the webpage is not operated again within a predetermined period, and transmit a signal containing an instruction for the network server to log out the user. A related method is also provided.

Abstract: An automatic cleaning device includes a cleaning tube having a longitudinal hole extending along a longitudinal axis. A connecting tube extends from a bottom of an intermediate section of the cleaning tube and is rotatably received in a draining tube in a bottom of a liquid container. Left and right guiding openings are defined in bottoms of left and right sections of the cleaning tube and extend slantingly from an outer periphery through an inner periphery of the cleaning tube. Each guiding opening includes a central axis spaced from the longitudinal axis. The left and right guiding openings have opposite extending directions. Siphon effect is created when a liquid in the liquid container is being drained via the draining tube. The liquid imparts force to inner peripheral walls of the guiding openings, causing the cleaning tube and the connecting tube to rotate about a central axis of the connecting tube.

Abstract: A water-cooling structure for electric motor includes a motor main body, a heat-dissipation base, and a vortex-forming section. The motor main body is externally fitted around the heat-dissipation base. The heat-dissipation base is provided around an outer circumferential surface with at least one main flow passage. The vortex-forming section is provided in the main flow passage to create vortex effect on a type of cooling liquid flowing in the main flow passage, so as to enable an increased heat transfer efficiency of the water-cooling structure.