Abstract: The present disclosure provides a display method and a display device. The method includes: receiving a picture sent by a user for being displayed in a first display layer; overlapping the picture and a second display layer including icons; when the color contrast of the icon in a first area of the second display layer being overlapped onto the picture displayed in a first area of the first display layer is less than a first preset threshold, adjusting the color contrast in the first area, so that the adjusted color contrast is greater than a second preset threshold, the second threshold being greater than or equal to the first threshold. The present disclosure solves the problem of the prior art that a functional icon cannot be recognized by a user when the colors of the background picture and the functional icon are consistent, improves the display visibility of the icon.

Abstract: An embodiment of the present disclosure provides a method for recommending videos through Bluetooth, a mobile terminal and a vehicle-mounted video player. The method comprises: establishing Bluetooth connection with the mobile terminal; receiving a new-user notification message transmitted by the mobile terminal through the Bluetooth connection; the new-user notification message comprises user information which is obtained by using the mobile terminal to identify a fingerprint input by a user and to perform identity authentication; recommending videos to users based on the user information. According to the present disclosure, the vehicle-mounted video player is capable of receiving the new-user notification message transmitted by the mobile terminal through Bluetooth connection and recommending the corresponding videos to users according to the user information; users' manual search and input are not needed any more; users' manual operation frequency is reduced and smart service is provided for users.

Abstract: An embodiment of the present disclosure provides a method for recommending videos through Bluetooth technology, a remote controller and a smart television. The method comprises: establishing a Bluetooth connection with the remote controller; receiving a new-user notification message transmitted by the remote controller through the Bluetooth connection; the new-user notification message comprises user information which is obtained after using the remote controller to identify fingerprint input by user and to perform identity authentication; recommending videos to users based on the user information. According to the present disclosure, the smart television is capable of receiving new-user notification message transmitted by the remote controller through Bluetooth connection and recommending videos to users base on the user information; Users' manual search and input are not needed any more; Users' manual operation frequency is reduced and smart service is provided for users.

Abstract: The embodiment of the present disclosure discloses a method and device for controlling a car light switch through Bluetooth technology. The method comprises the following steps of receiving a UUID broadcast by the car lights by a mobile terminal; configuring light control services corresponding to the car lights, characteristics of the light control services, and configuration descriptors of the characteristics and establishing Bluetooth connection with the car lights according to the UUID; amending the configuration descriptors of the characteristics on the car through a Bluetooth connection to switch on or off the car lights. By the method and the device, Bluetooth connection among the mobile terminal and the car lights is established to amend the configuration descriptors of the characteristics so as to switch on or off the car lights, and thus the car lights are remotely switched on or off to provide illumination for the users.

Abstract: Embodiments of the present disclosure disclose a method and a device for monitoring a door lock state. The method specifically comprises searching for a door lock service provided by a server according to a door lock service identification code that is broadcasted by the server and in a corresponding relation to the door lock service, establishing a Bluetooth connection corresponding to the door lock service with the server, and reading a door lock state record characteristic value corresponding to the door lock service by means of the Bluetooth connection according to the door lock service identification code, wherein the door lock state record characteristic value corresponding to the door lock service comprises open or closed. According to the method and the device for monitoring the door lock state, the real-time state of a door lock can be checked by means of a mobile terminal.

Abstract: An embodiment of the present disclosure discloses a method and device for controlling of opening and closing an automobile door lock through a Bluetooth technology. The method comprises: receiving a UUID broadcast by a to-be-unlocked automobile door lock by a mobile terminal; configuring locking control services corresponding to the to-be-unlocked automobile door, characteristics of the locking control services, and configuration descriptors of the characteristics and establishing a Bluetooth connection with the to-be-unlocked automobile door according to the UUID; amending the configuration descriptors of the characteristics through the Bluetooth connection to open or close the to-be-unlocked automobile door.

Abstract: An embodiment of the present disclosure discloses a method, an apparatus and a system for adjusting vehicle information, wherein the method comprises: discovering, by a mobile end, various service information supported by a vehicle end and characteristics corresponding to the various service information by scanning Universally Unique Identifiers (UUIDs) broadcast by the vehicle end; receiving from the vehicle end and storing, by the mobile end, the characteristics with vehicle information which is an indication of the characteristics; and if the mobile end's established connection with the vehicle end changes, sending, by the changed mobile end pre-saved vehicle information to the vehicle end, so that the vehicle end adjusts current vehicle information according to the received vehicle information. The embodiments of the present disclosure free users from adjusting vehicle information manually, reduces preparation work before driving a vehicle and saves time and energy.

Abstract: Disclosed herein are a method and apparatus that adaptively perform encoding and decoding based on image quality. An encoding apparatus may determine optimal Frames Per Second (FPS) for a video and may encode the video based on the determined FPS. Further, the encoding apparatus may provide improved temporal scalability. A decoding apparatus may select a frame to be displayed from among frames of a video depending on a required minimum satisfied user ratio. Through the selection of the frame, the decoding apparatus may provide improved temporal scalability.

Abstract: A method of fabricating a polycrystalline silicon thin film transistor device includes the following steps. A substrate is provided, and a buffer layer having dopants is formed on the substrate. An amorphous silicon layer is formed on the buffer layer having the dopants. A thermal process is performed to convert the amorphous silicon layer into a polycrystalline silicon layer by means of polycrystalization, and to simultaneously out-diffuse a portion of the dopants in the buffer layer into the polycrystalline silicon layer for adjusting a threshold voltage. The polycrystalline silicon layer is patterned to form an active layer. A gate insulating layer is formed on the active layer. A gate electrode is formed on the gate insulating layer. A source doped region and a drain doped region are formed in the active layer.

Abstract: A golf practice tent having a ceiling, a floor and an open face for accepting golf balls that have been launched into the tent; a rigid frame structure at least partially external to the tent that provides structural support for the tent; and a planar net coupled to the ceiling of the tent and separated from a rear panel of the tent, such that the net hangs loosely from the ceiling and extends towards the floor, wherein the net is placed behind the open face such that golf balls that have been launched into the tent contact the net.

Abstract: An energy storage system is provided. The system includes a plurality of energy storage modules connected in parallel. Each energy storage module has an energy storage source, a bidirectional current converter configured for supplying charge to the energy storage source from a power source and for discharging current for use by an electrical device, a monitoring module for monitoring the energy storage source and the current converter, and a controller configured to control the current converter based upon monitored characteristics of the storage source and the current converter to produce a respective output signal for each module. A communications module is in connection with each output signal of the energy storage modules and configured for communicating a combined output signal with one of the power source and the electrical device.

Abstract: A high power density switched-capacitor DC-DC converter is disclosed. According to one aspect, the subject matter described herein includes a high power-density switched-capacitor DC-DC converter that includes: first and second voltage summing circuits, each voltage summing circuit producing an output voltage that is substantially equal to an input voltage; and a switching circuit connected between the first and second voltage summing circuits and configured to provide a DC voltage source as an input to the first and second voltage summing circuits, wherein the converter produces an output voltage that is the sum of the voltage produced by the first voltage summing circuit, the voltage provided by the DC voltage source, and the voltage produced by the second voltage summing circuit.

Abstract: Static synchronous compensator (STATCOM) systems and methods are disclosed. An example STATCOM system includes a reactive component configured for electrical connection to a power network. For example, the reactive component may be a capacitor bank. The system also includes an inductor electrically connected in series with the reactive component. Further, the system includes a converter electrically connected in series with the reactive component and the inductor. A method may include using the static synchronous compensator system to provide one of reactive power and active power to the power network.

Abstract: In the field of biological technology, a stem cell culture method is provided. The method includes preparing an amniotic epithelial cell feeder layer that is not treated to lose the division ability; and seeding the stem cells onto the amniotic epithelial cell feeder layer, and culturing in a culture medium. The stem cell culture method according to the present invention does not require the treatment of the feeder layer cells to lose the division ability, and is thus simple and safe, thereby effectively solving the problem of contamination caused by animal-derived ingredients in culture of human stem cells at present, greatly reducing the culture cost of the stem cells, and providing a safe, effective, and inexpensive stem cell culture method for the industrialization of the stem cells in the future.

Abstract: A high power density switched-capacitor DC-DC converter is disclosed. According to one aspect, the subject matter described herein includes a high power-density switched-capacitor DC-DC converter that includes: first and second voltage summing circuits, each voltage summing circuit producing an output voltage that is substantially equal to an input voltage; and a switching circuit connected between the first and second voltage summing circuits and configured to provide a DC voltage source as an input to the first and second voltage summing circuits, wherein the converter produces an output voltage that is the sum of the voltage produced by the first voltage summing circuit, the voltage provided by the DC voltage source, and the voltage produced by the second voltage summing circuit.

Abstract: An alternating current-to-direct current (AC-DC) converter is provided. The converter may include a transformer having a primary side and a secondary side. A first bi-directional switch and a first inductor may be connected in series between a positive terminal of an AC source and a first terminal of the primary side of the transformer. A second bi-directional switch and a second inductor may be connected between the positive terminal of the AC source and a second terminal of the primary side of the transformer and connected in parallel with the first bi-directional switch.

Abstract: The invention discloses a manufacture method and structure of a power transistor, comprising a lower electrode, a substrate, a drift region, two first conductive regions, two second conductive regions, two gate units, an isolation structure and an upper electrode. The two second conductive region are between the two first conductive regions and the drift region; the two gate units are on the two second conductive regions; the isolation structure covers the two gate units; the upper electrode covers the isolation structure and connects to the two first conductive regions and the two second conductive regions electrically. When the substrate is of the first conductive type, the structure can be used as MOSFET. When the substrate is of the second conductive type, the structure can be used as IGBT. This structure has a small gate electrode area, which leads to less Qg, Qgd and Rdson and improves device performance.

Abstract: A distribution transformer power flow controller apparatus includes at least one external source terminal configured to be coupled to a distribution transformer, at least one external load terminal configured to be coupled to a load, and a converter circuit configured to be coupled between the at least one external source terminal and the at least one external load terminal to provide series connection of the converter circuit with the load and to control a power transfer of the distribution transformer. The converter circuit may be configured to control a reactive power transfer of the distribution transformer. The converter circuit may also be configured to control a reactive power transfer and a real power transfer. In some embodiments, the converter circuit may be configured to be coupled to at least one energy storage capacitor, at least one battery and/or at least one power generation device.

Abstract: An apparatus includes at least one external source terminal configured to be connected to at least one secondary terminal of a distribution transformer and at least one external load terminal configured to be connected to a load. The apparatus further includes a converter circuit coupled to the at least one external source terminal and to the at least one external load terminal and configured to provide shunt current regulation and series voltage regulation.

Abstract: Disclosed herein are techniques of manufacturing semiconductor devices having a positive-bevel termination and/or a negative-bevel termination. In a particular example, techniques are disclosed for manufacture of a chip-size SiC device having an orthogonal positive-bevel termination used for the reverse blocking junction. The edge termination may be formed, for example, by cutting across a SiC wafer with a V-shaped dicing tool or blade. The cut may be performed by any suitable dicing tool. The cut may be across a p-n junction for forming positive-bevel termination. Subsequently, a surface of the termination may be etched for removing damage caused by the cutting process.