Abstract: A data processing method performed by a first device includes: generating, in response to first service data satisfying a data uploading condition, a first bit array corresponding to the first service data; encrypting the first bit array through a data key to obtain a ciphertext bit array, the data key being generated by a second device in a data intersection application run in a trusted execution environment of the second device; and transmitting the ciphertext bit array to a blockchain node for forwarding to a second device, for the second device to decrypt, in the data intersection application through the data key, the ciphertext bit array to obtain the first bit array.

Abstract: An identity certificate may be issued to a blockchain node. The issuance may include issuing a first identity certificate to a first terminal and receiving a second identity certificate issuance request that is from the first terminal. A second identity certificate may be issued to the first terminal, and a third identity certificate issuance request is received from the second terminal. A third identity certificate is issued to the second terminal, so that the second terminal forwards the third identity certificate to the third terminal.

Abstract: Various embodiments of the teachings herein include a gearbox adapter. For example, some embodiments include an adapter body with an internal cavity, a first end having a gearbox connection structure connecting the adapter body to a gearbox body, a first shaft hole in an end face of the first end providing communication between the internal cavity and an outside of the adapter body, and a second end having an opening in communication with the internal cavity; a transmission shaft configured to extend from the outside into the internal cavity via the opening and then out of the adapter body through the first shaft hole; an opening cover with a second shaft hole, the opening cover fitted at the second end to block the opening but allow the transmission shaft to pass out of the internal cavity through the second shaft hole; and a rotating bearing arranged in the internal cavity and fitted to the transmission shaft to support the transmission shaft.

Abstract: The present application discloses a cooling system and a control method thereof; the cooling system includes a compressor unit, a condenser, a first solenoid valve, a second solenoid valve, a first throttle valve and a frequency converter; the second solenoid valve and the first throttle valve are connected with the first solenoid valve in parallel after being connected in series with each other; the compressor unit, the condenser, the first solenoid valve and the frequency converter are connected in series to form a first cooling loop; the compressor unit, the condenser, the second solenoid valve, the first throttle valve and the frequency converter are connected in series to form a second cooling loop; and the frequency converter is internally provided with a temperature detection module and a heat exchange module.

Abstract: A method for manufacturing an III-nitride semiconductor structure is provided.

Abstract: The present application discloses a cooling system and a control method thereof; the cooling system includes a compressor unit, a condenser, a first solenoid valve, a second solenoid valve, a first throttle valve and a frequency converter; the second solenoid valve and the first throttle valve are connected with the first solenoid valve in parallel after being connected in series with each other; the compressor unit, the condenser, the first solenoid valve and the frequency converter are connected in series to form a first cooling loop; the compressor unit, the condenser, the second solenoid valve, the first throttle valve and the frequency converter are connected in series to form a second cooling loop; and the frequency converter is internally provided with a temperature detection module and a heat exchange module.

Abstract: A method for manufacturing an III-nitride semiconductor structure is provided.

Abstract: According to an aspect of the present inventive concept there is provided a method for manufacturing a silicon on nitride, SON, substrate. The method comprises the steps of providing a semiconductor layer of a first crystal orientation, forming, on the semiconductor layer, an interface layer comprising a monocrystalline III-nitride layer forming a nucleation layer for a subsequent epitaxy process, and bonding a silicon substrate of a second crystal orientation with the interface layer.

Abstract: A semiconductor structure and a method for forming the semiconductor structure are provided. The method includes: providing a monocrystalline substrate having an upper surface covered with a masking layer comprising at least one opening exposing the upper surface; filling the opening by epitaxially growing therein a first layer comprising a first Group III-nitride compound; and growing the first layer further above the opening and on the masking layer by epitaxial lateral overgrowth, wherein the at least one opening has a top surface defined by three or more straight edges forming a polygon parallel to the upper surface and oriented in such a way with respect to the crystal lattice of the monocrystalline substrate so as to permit the epitaxial lateral overgrowth of the first layer in a direction perpendicular to at least one of the edges, thereby forming the semiconductor structure as an elongated structure.

Abstract: A key with balance rods and a keyboard are provided. The key includes a base plate. A sensing component is disposed on the base plate. An intermediate plate is disposed on the sensing component. The intermediate plate has a key hole and a receiving chamber which penetrate upper and lower surfaces of the intermediate plate. A keying portion is disposed on the base plate. Balance rods are disposed between a lower surface of the keying portion and a lower surface of the intermediate plate or base plate. Two balance rods run in the direction of X-axis or the direction of Y-axis, whereas one balance rod runs in the other direction and between the two balance rods. The three balance rods neither cross nor overlap. The key with balance rods and the keyboard have a comfortable feel and are applicable to laptops with thin keyboards, tablets, and smartphone keyboards.

Abstract: A semiconductor structure and a method for forming the semiconductor structure are provided. The method includes: providing a monocrystalline substrate having an upper surface covered with a masking layer comprising at least one opening exposing the upper surface; filling the opening by epitaxially growing therein a first layer comprising a first Group III-nitride compound; and growing the first layer further above the opening and on the masking layer by epitaxial lateral overgrowth, wherein the at least one opening has a top surface defined by three or more straight edges forming a polygon parallel to the upper surface and oriented in such a way with respect to the crystal lattice of the monocrystalline substrate so as to permit the epitaxial lateral overgrowth of the first layer in a direction perpendicular to at least one of the edges, thereby forming the semiconductor structure as an elongated structure.

Abstract: An example embodiment includes method for forming a layer of a Group III-Nitride material. The method includes providing a substrate having a main surface comprising a layer of a first Group III-nitride material. The substrate further includes, on the main surface, a dielectric layer comprising an opening exposing the first Group III-nitride material. A thermal treatment process is performed while subjecting the substrate to a gas mixture comprising a nitrogen containing gas, thereby increasing temperature of the substrate up to a temperature for growing a layer of a second Group III-nitride material. At least one Group III-metal organic precursor gas is subsequently introduced into the gas mixture at the growth temperature, thereby forming, at least in the opening on the exposed Group III-nitride material, a layer of the second Group III-nitride material by selective epitaxial growth, characterized in that the gas mixture is free of hydrogen gas.

Abstract: A key with balance rods and a keyboard are provided. The key includes a base plate. A sensing component is disposed on the base plate. An intermediate plate is disposed on the sensing component. The intermediate plate has a key hole and a receiving chamber which penetrate upper and lower surfaces of the intermediate plate. A keying portion is disposed on the base plate. Balance rods are disposed between a lower surface of the keying portion and a lower surface of the intermediate plate or base plate. Two balance rods run in the direction of X-axis or the direction of Y-axis, whereas one balance rod runs in the other direction and between the two balance rods. The three balance rods neither cross nor overlap. The key with balance rods and the keyboard have a comfortable feel and are applicable to laptops with thin keyboards, tablets, and smartphone keyboards.

Abstract: An example embodiment includes method for forming a layer of a Group III-Nitride material. The method includes providing a substrate having a main surface comprising a layer of a first Group III-nitride material. The substrate further includes, on the main surface, a dielectric layer comprising an opening exposing the first Group III-nitride material. A thermal treatment process is performed while subjecting the substrate to a gas mixture comprising a nitrogen containing gas, thereby increasing temperature of the substrate up to a temperature for growing a layer of a second Group III-nitride material. At least one Group III-metal organic precursor gas is subsequently introduced into the gas mixture at the growth temperature, thereby forming, at least in the opening on the exposed Group III-nitride material, a layer of the second Group III-nitride material by selective epitaxial growth, characterized in that the gas mixture is free of hydrogen gas.

Abstract: A waterproof hermetically-sealed electronic product protection device includes a body and at least a covering element. The body has a receiving space and at least an opening in communication with the receiving space. The body has a positioning section at the periphery of the at least an opening. The at least a covering element has a protective portion and an engaging portion circumferentially disposed at the periphery of the protective portion. The engaging portion is engaged with the positioning section of the body, such that the at least a covering element covers the at least an opening, and the receiving space is airtight. Hence, not only is the engaging portion engaged with and fixed to the positioning section, but the receiving space is also waterproof and airtight to thereby provide electronic product protection and enable users to operate an electronic product with the protective portion directly.

Abstract: A circuit switch for a keyboard is formed of a first plate and a second plate. A first sensitive portion and a second sensitive portion are mounted on a surface of the first plate, superposed on each other, and electrically insulated against each other. A first conductive wire is located on the first plate and electrically connected with the first sensitive portion. A conductive portion is located on the second plate. The second plate is parallel to the first plate in arrangement. The conductive portion corresponds to the second sensitive portion in a way that an interval is located therebetween. A second conductive wire is located on the second plate and electrically connected with the conductive portion. A grounded circuit is located between the first and second plates and spaced from the second sensitive portion. The grounded circuit partially overlaps or crosses the first or second conductive wire.

Abstract: An audio and video recording system having wireless communication includes an audio receiver and a video device for receiving and converting external audio and video into audio and video signals; a playback device for playing the audio and video signals; a wireless communication module for transmitting or receiving the audio and video signals via wireless transmission; when a command is issued through an interface unit, a multimedia processor compresses or decompresses the audio or video signal according to the command and then stores it into a storage device; a system processor executes an audio and video function and a communication function according to the command; and a RAM and a ROM store data and program codes required for the command and for executing the command. Therefore, audio and video contents of a dialogue can be merged for playback and wireless transmission to other device.

Abstract: Stereotactic methods are routinely used in neurosurgery for operations such as the aspiration of brain cysts, tumor biopsies and more recently to implant electrodes into brain targets. An integral part of this surgery is a mechanical device called a stereotactic frame (10) that has head holding clamps and bars which puts the head in a fixed position in reference to the coordinate system. Various methods of accurately aligning the frame have been used but a novel device and method are proposed that over-come at least some of the shortcomings of these current techniques. There is disclosed a removable frame attachment (30) that holds the frame in position but allows for fine adjustment, allowing a single operator to quickly and accurately position the frame. The attachment can be removed before surgery without moving the set position of the frame. The device comprises two or more arms (31,32) each arm being coupled to another at a point of intersection.

Abstract: A waterproof stylus is provided. The waterproof stylus comprises a hollow pen body. A circuit board is formed within the hollow pen body and has at least one switch. The hollow pen body has an opening, and a button is formed at the opening. The button abuts the switch of the circuit board so that when the button is subjected to pressure, the switch of the circuit board is synchronously triggered. Thereby the circuit board generates an electrical signal to the touch panel, which the waterproof stylus cooperates with. There is a waterproof member formed between the hollow pen body and the button, and the waterproof member seals the opening of the hollow pen body to block external water and air from getting into the hollow pen body and damaging the control unit. Therefore, the stylus of the present invention provides a good waterproofing effect.