Abstract: The present invention provides a method for preparing a permanent magnet material, the method comprising coating step and infiltrating step, wherein, coating a rare earth element-containing substance on the surface of a permanent magnet, the magnet having a thickness of 10 mm or less at least in one direction, then placing the magnet into a container, vacuuming to an atmospheric pressure of below 10 Pa, closing the passageway, and then heat treating the closed container. Using the method of the present invention enables the rare earth element to infiltrate homogeneously with a high permeability. In addition, the present invention may have a lower production cost, significantly increase coercive force of the permanent magnet material, but decrease the remanence very little.

Abstract: The present invention provides a method for preparing a rare earth permanent magnet material. The preparation method of the present invention comprises atomizing spray process and infiltrating process, wherein the atomizing-sprayed sintered rare earth magnet is placed in a closed container before infiltrating. Through the atomizing spray process a solution containing a heavy rare earth element is coated on the surface of a sintered R1-Fe(Co)—B-A-X-M rare earth magnet, and after baking, heat treatment is performed to infiltrate the sprayed heavy rare earth element to the grain boundary phase of the sintered rare earth magnet. This method decreases the amount of a heavy rare earth element used, increases the coercive force of magnets with a little decrease of remanence, decreases the remanence temperature coefficient and coercive force temperature coefficient of the magnet, and improves resistance of the magnet against demagnetization at a high temperature.

Abstract: A spraying device comprises: a conveyer comprising a mesh crawler belt configured to carry an object to be sprayed; a baking chamber for heating the object to be sprayed; a spraying chamber having at least one atomizing nozzle disposed within the spraying chamber, the atomizing nozzle being configured to uniformly spray a coating solution on a surface of the object to be sprayed; a cleaning chamber for cleaning the mesh crawler belt and recycling the coating solution carried by the mesh crawler belt; and a solution storage apparatus for storing the coating solution that the spraying chamber needs for spraying; wherein the mesh crawler belt passes successively through the baking chamber, the spraying chamber and the cleaning chamber. The device of the present invention can ensure uniformity of the thickness of a coating layer on the magnet. In addition, the device can improve spraying efficiency and save raw material.

Abstract: An infiltration device comprises a heating room, a rotary tray, a rotary bracket, a material box, an elevating mechanism and a transmission device, wherein the heating room has an annular groove, and the rotary tray is arranged below an opening end at a lower end of the heating room; the rotary bracket is installed on the rotary tray; the material box is arranged on the rotary bracket; the rotary tray and the material box can move upward and downward under the action of the elevating mechanism; the rotary bracket can spin in the annular groove and revolve around a central axis of the rotary tray under the action of the transmission device. The infiltration method provided by the invention comprises the steps of charging, vacuum-pumping, high temperature infiltrating, cooling, discharging, etc.

Abstract: A preparation method of a graphene nanoribbon on h-BN, comprising: 1) forming a h-BN groove template with a nano ribbon-shaped groove structure on the h-BN by adopting a metal catalysis etching method; 2) growing a graphene nanoribbon in the h-BN groove template by adopting a chemical vapor deposition method. In the present invention, a CVD method is adopted to directly prepare a morphology controllable graphene nanoribbon on the h-BN, which helps to solve the long-term critical problem that the graphene is difficult to nucleate and grow on an insulating substrate, and to avoid the series of problems introduced by the complicated processes of the transferring of the graphene and the subsequent clipping manufacturing for a nanoribbon and the like.

Abstract: A latch and a D flip-flop, where the latch includes a switch, a resistive random-access memory, a bleeder circuit, and a voltage converter. The voltage converter is configured to output an output signal of the latch according to an input signal of the latch when the switch is in an on state, where the output signal remains consistent with the input signal. When the switch changes from the on state to an off state, the resistive random-access memory is configured to work together with the bleeder circuit to enable an output signal of the latch when the switch is in the off state to remain consistent with an output signal of the latch when the switch is in the on state, thereby implementing a nonvolatile latching function. A circuit structure of the latch is simple and integrity of an existing logic circuit can be improved.

Abstract: An electronic device is provided according to the present application. The electronic device includes a housing provided with a sliding groove. A protrusion extending towards an inner side of the sliding groove is provided at an upper edge of the sliding groove, a slidable elastic strip is slidably cooperated between the protrusion and the bottom of the sliding groove. The slidable elastic strip includes two slidable components and an elastic component, and the two slidable components are fixedly connected to two ends of the elastic component, respectively. The housing is provided with at least two locking structures which are detachably connected to the two slidable components, respectively, and are configured to allow the elastic component to slide out of the sliding groove to form a convex structure perpendicular to the housing in a case that the slidable components are immobilized to the locking structure. The structure in the present application is simple and convenient to use.

Abstract: Disclosed herein are methods of synthesizing mahanine and related compounds. The synthesis features an intramolecular aryl-alkyne isomerization, transition metal catalyzed cross-coupling and intramolecular carbazole forming reaction.

Abstract: Methods for organizing media data by automatically segmenting media data into hierarchical layers of scenes are described. The media data may include metadata and content having still image, video or audio data. The metadata may be content-based (e.g., differences between neighboring frames, exposure data, key frame identification data, motion data, or face detection data) or non-content-based (e.g., exposure, focus, location, time) and used to prioritize and/or classify portions of video. The metadata may be generated at the time of image capture or during post-processing. Prioritization information, such as a score for various portions of the image data may be based on the metadata and/or image data. Classification information such as the type or quality of a scene may be determined based on the metadata and/or image data. The classification and prioritization information may be metadata and may be used to organize the media data.

Abstract: A system for processing media on a resource restricted device, the system including a memory to store data representing media assets and associated descriptors, and program instructions representing an application and a media processing system, and a processor to execute the program instructions, wherein the program instructions represent the media processing system, in response to a call from an application defining a plurality of services to be performed on an asset, determine a tiered schedule of processing operations to be performed upon the asset based on a processing budget associated therewith, and iteratively execute the processing operations on a tier-by-tier basis, unless interrupted.

Abstract: A method for processing an application installation package includes: acquiring a processing attribute of the application installation package when it is detected that an operation system of a mobile terminal is being upgraded with the application installation package, the processing attribute including one of an upgrade compilation attribute or an idle compilation attribute; and during upgrade of the operation system, compiling the application installation package having the upgrade compilation attribute.

Abstract: The present invention discloses an electronic device comprising: a body comprising a display screen exposed on a first surface of the body; a connector arranged on a second surface of the body, the second surface being opposite to the first surface; an operational posture switching unit connected to the body by the connector. The unit has a first working position and a second working position and is switchable between the first working position and the second working position. The electronic device is in a first operational posture when the unit is located in the first working position while the electronic device is in a second operational posture which is different from the first operational posture when the unit is located in the second working position. The operational posture switching unit allows the body in different operational postures to improve the user's experiences.

Abstract: A preparation method of a graphene nanoribbon on h-BN, comprising: 1) forming a h-BN groove template with a nano ribbon-shaped groove structure on the h-BN by adopting a metal catalysis etching method; 2) growing a graphene nanoribbon in the h-BN groove template by adopting a chemical vapor deposition method. In the present invention, a CVD method is adopted to directly prepare a morphology controllable graphene nanoribbon on the h-BN, which helps to solve the long-term critical problem that the graphene is difficult to nucleate and grow on an insulating substrate, and to avoid the series of problems introduced by the complicated processes of the transferring of the graphene and the subsequent clipping manufacturing for a nanoribbon and the like.

Abstract: An electronic device is provided according to the present application. The electronic device includes a housing provided with a sliding groove. A protrusion extending towards an inner side of the sliding groove is provided at an upper edge of the sliding groove, a slidable elastic strip is slidably cooperated between the protrusion and the bottom of the sliding groove. The slidable elastic strip includes two slidable components and an elastic component, and the two slidable components are fixedly connected to two ends of the elastic component, respectively. The housing is provided with at least two locking structures which are detachably connected to the two slidable components, respectively, and are configured to allow the elastic component to slide out of the sliding groove to form a convex structure perpendicular to the housing in a case that the slidable components are immobilized to the locking structure. The structure in the present application is simple and convenient to use.

Abstract: A method for growing a graphene nanoribbon on an insulating substrate having a cleavage plane with atomic level flatness is provided, and belongs to the field of low-dimensional materials and new materials. The method includes the following steps. Step 1: Cleave an insulating substrate to obtain a cleavage plane with atomic level flatness, and prepare a single atomic layer step. Step 2: Directly grow a graphene nanoribbon on the insulating substrate having regular single atomic steps. In the method, a characteristic that nucleation energy of graphene on the atomic step is different from that on the flat cleavage plane is used, and conditions, such as the temperature, intensity of pressure and supersaturation degree of activated carbon atoms, are adjusted, so that the graphene grows only along a step edge into a graphene nanoribbon of an adjustable size. The method is mainly applied to the field of new-type graphene optoelectronic devices.

Abstract: A method for displaying a wireless device list, includes: acquiring broadcast information sent from a wireless device, the broadcast information including a first field for indicating a name of the wireless device and a second field for indicating a manufacturer of the wireless device; acquiring an identity of the manufacturer of the wireless device according to the second field; and displaying the name of the wireless device and the identity of the manufacturer in a wireless device list.

Abstract: Systems and processes for improved video editing, summarization and navigation based on generation and analysis of metadata are described. The metadata may be content-based (e.g., differences between neighboring frames, exposure data, key frame identification data, motion data, or face detection data) or non-content-based (e.g., exposure, focus, location, time) and used to prioritize and/or classify portions of video. The metadata may be generated at the time of image capture or during post-processing. Prioritization information, such as a score for various portions of the image data may be based on the metadata and/or image data. Classification information such as the type or quality of a scene may be determined based on the metadata and/or image data. The classification and prioritization information may be metadata and may be used to automatically remove undesirable portions of the video, generate suggestions during editing or automatically generate summary video.

Abstract: Systems and methods of pulse-echo imaging using stabilized symmetric pulses are described. The systems and methods are based on the development of a class of symmetric, i.e., two sided, functions that can be designed and utilized as stabilized pulses. Stabilized pulses are pulses having stable inverse filters, and have previously only been established for asymmetric functions. The systems and methods described herein can be used for super-resolution pulse-echo imaging, for example super-resolution ultrasound imaging.

Abstract: The present application discloses an electronic apparatus comprising a body, a rotary connection device, a bracket and a base, wherein, the bracket is rotatably connected to the body via the rotary connection device; the base is detachably connected to the body via the bracket. The electronic apparatus is in a first use mode when the body is connected to the base via the bracket. The electronic apparatus is in a second use mode when the base is detached from the bracket. The second use mode is different from the first use mode.

Abstract: A vital stain for observation under multiphoton laser microscopy, the vital stain comprising one or more edible dye compounds.