Abstract: A method of handling message signaled interrupts in a computer system that uses an internal bus for communication between peripheral devices, using shared peripheral interrupt (SPI) vectors. The method includes determining whether a message signaled interrupt (MSI) needs to be allocated for a PCI-e device for an interrupt to be sent to a host. If it is determined that MSI needs to be allocated for the PCI-e device, a determination is made as to whether a Locality Specific Interrupt (LPI) register or an Interrupt Translation Service (ITS) is available to process the interrupt. If it is determined that neither the LPI register nor the Interrupt Translation Service (ITS) is available to process the interrupt, the PCI-e device is configured for SPI-based MSI generation to route the interrupt by determining an available SPI vector and assigning the available SPI vector to the PCI-e device.

Abstract: An active power distribution network multi-time scale coordinated optimization scheduling method and storage medium are provided. The method includes the following steps: performing long-time scale optimization scheduling of an active power distribution network; performing short-time scale rolling optimization scheduling on the basis of MPC of the active power distribution network according to an optimization result of the long-time scale optimization scheduling of the active power distribution network. By using a model prediction control method, taking the long-time scale optimization scheduling result as a reference, and performing short-time scale rolling correction, the optimization scheduling of the active power distribution network is achieved, thereby reducing unfavorable influences of prediction precision of a distributed power supply and a low-voltage load on the optimization scheduling.

Abstract: In a method for treating waste water containing ammonium salts, sodium sulfate crystal is obtained by freezing crystallization, then the pH value of the waste water is adjusted to a specific range, and next sodium chloride crystal and ammonia water is obtained by evaporation. Alternatively, the pH value of the waste water is adjusted to a specific range, then sodium chloride crystal and ammonia water is obtained by evaporation, and next sodium sulfate crystal is obtained by freezing crystallization. This method can recover ammonia, sodium sulfate, and sodium chloride from the waste water.

Abstract: The present invention relates to the waste water treatment field, and discloses apparatus and method for treating waste water containing ammonium salts, which contains NH4+, SO42?, Cl?, and Na+. In the method of the present invention, the pH value of the waste water to be treated is adjusted to a specific range in advance; sodium sulfate crystal and relatively concentrated ammonia are obtained by first evaporation, and then sodium chloride crystal and relatively dilute ammonia is obtained by second evaporation; alternatively, sodium chloride crystal and relatively concentrated ammonia is obtained by third evaporation, and then sodium sulfate crystal and relatively dilute ammonia are obtained by fourth evaporation. The method of the present invention can recover ammonia, sodium sulfate, and sodium chloride from the waste water respectively, so that the resources in the waste water can be reused as far as possible.

Abstract: The present disclosure provides an atrial fibrillation signal recognition method, apparatus and device.

Abstract: A system for refinement of a voice query interpretation interprets a voice query received at a voice-enabled device to identify commands responsive to the voice query for execution at the voice-enabled device, and enables refinement of the interpretation of the voice query through a graphical user interface generated and displayed at a GUI-capable device. The graphical user interface includes a set of selectable options relating to the voice query and identifying a refinement of the interpretation of the voice query to enable control and/or adjustment of commands to be executed by the voice-enabled device. For example, if one of the selectable options is selected, then a command associated with the selected option is identified and executed by the voice-enabled device.

Abstract: Disclosed is a least square-based mechanical arm control method for robot experimental teaching, which includes: acquiring an image of a target object, and calculating position coordinates of the target object by using the image of the target object; setting a pickup distance, selecting a plurality of first sample points and second sample points according to a position target, and controlling, by using a swing steering engine, a claw to sequentially move along a first trajectory and a second trajectory; reading a duty ratio S of PWM signals in the swing steering engine, and calculating a value of Di=S/P; fitting xi based on a least square method to obtain a fitted equation; adjusting the pickup distance, and correspondingly setting the duty ratio of PWM signals in the swing steering engine according to the fitted data and controlling the claw to sequentially move along the first trajectory and the second trajectory.

Abstract: An intra-oral scanning device includes a light source and an optical system, and communicates with a display system. The device provides for more efficient transmission and capture of images. It integrates OCT scanning with RGB-based scanning. In operation, the device is used for recording topological characteristics of teeth, dental impressions, or stone models by digital methods and for use in CAD/CAM of dental restorative prosthetic devices. To that end, the RGB-based scan obtains surface data (e.g., a margin), while the OCT scan penetrates the surface. The two scanners operate from within the same physical housing and preferably at the same time such that only one scanning pass (to obtain all necessary data) is required. The 3D data obtained from the OCT scan is registered with the 3D data obtained from the RGB-based scan by virtue of being captured using a common return path.

Abstract: An example method of accessing a computing system includes: providing serial terminal driver configured to interface a serial port in a hardware platform of the computer system; providing a console object configured to communicate with an operating system (OS) in a software platform of the computer system and the serial terminal driver; connecting to the console object through the serial port via a computer terminal; sending text and commands from the console object to the computer terminal; and rendering, by the computer terminal, a console for presentation on a display of the computer terminal.

Abstract: An earpiece includes an earpiece housing, an intelligent control system disposed within the earpiece housing, a speaker operatively connected to the intelligent control system, a microphone operatively connected to the intelligent control system, and at least one sensor operatively connected to the intelligent control system for providing sensor data. The intelligent control system of the earpiece is configured to interface with a user of the earpiece by determining at least one of attention or intention of the user using the sensor data without receiving manual input at the earpiece and without receiving voice input from the user. The earpiece may be further configured to present an audio menu and use the attention or intention of the user to select one or more items from the audio menu.

Abstract: Provided are an electrocardiogram signal parallel analysis apparatus, a mobile terminal incorporating the apparatus, and related methods. The apparatus includes an integrated memory, a central processing unit and a graphic processing unit. The integrated memory includes a first memory and a second memory for being used by the central processing unit and the graphic processing unit respectively, and the central processing unit may access the second memory. The central processing unit performs primary noise reduction on a received electrocardiogram original signal to obtain a primary electrocardiogram signal, and performs abnormal heartbeat classification preliminary screening on characteristic data extracted from the graphic processing unit to obtain suspected abnormal heartbeat data.

Abstract: The present invention provides a governor assembly and an elevator, wherein the governor assembly includes: a support; a first axle rotatably supported by the support; a main pulley rotatably mounted on the first axle relative to the first axle; a first guide pulley near the main pulley; a first safety device actuated by the rotation of the first axle; and a centrifugal tripping mechanism which enables, when a rotating speed of the main pulley exceeds a preset value, the main pulley and the first axle to be coupled and rotate together. The governor assembly according to the present invention is of a compact structure and is applicable to a small mounting space.

Abstract: A tower bottom cooling device for a wind turbine includes a tower and a heat sink configured to cool a heat generating component arranged at a bottom of the tower; a main air duct is provided inside the tower, and the heat sink is disposed inside the main air duct; a first fan is arranged in the main air duct, and is configured to drive air in the main air duct to flow to cool the heat sink; and the main air duct and an external environment of the tower together form an open cycle.

Abstract: A method of detecting virtualization in a computing system, which includes a processor having at least three hierarchical privilege levels including a third privilege level more privileged than a second privilege level, the second privilege level more privileged than a first privilege level, is described. The method includes: executing a program on the processor at a privilege level less privileged than the third privilege level, the program including a load-exclusive instruction of the processor, followed by at least one instruction of the processor capable of being trapped to the third privilege level, followed by a store-exclusive instruction of the processor; and determining presence or absence of virtualization software at least a portion of which executes at the third privilege level in response to a return status of the store-exclusive instruction.

Abstract: An electronic device with heat sink is provided. The heat sink includes a base and fins. One side of the base has a first placement plane and a second placement plane. The electronic device includes a circuit board, a power module and transistors. The power module includes a power body and soldering legs, and the power body is attached to the first placement plane. The transistor has a transistor body and pins, and the transistor body is attached to the second placement plane. The circuit board is disposed at one side of the base formed with the first placement plane, and soldering legs of the power module and pins of the transistor are inserted on the circuit board. Thereby the heat sinks and the space which the circuit board occupied will be reduced for increasing the power density of the heat sink.

Abstract: An electronic device with heat sink is provided. The heat sink includes a base and fins. One side of the base has a first placement plane and a second placement plane. The electronic device includes a circuit board, a power module and transistors. The power module includes a power body and soldering legs, and the power body is attached to the first placement plane. The transistor has a transistor body and pins, and the transistor body is attached to the second placement plane. The circuit board is disposed at one side of the base formed with the first placement plane, and soldering legs of the power module and pins of the transistor are inserted on the circuit board. Thereby the heat sinks and the space which the circuit board occupied will be reduced for increasing the power density of the heat sink.

Abstract: A device and method for rotating a rotor of a wind power generator and a wind power generator are provided. The device includes at least two rotating units, and each of the rotating units includes a telescopic cylinder, a mounting base configured to connect a fixed end of the telescopic cylinder to a stand of the wind power generator, and detachably connected to the stand; and a pin arranged at a movable end of the telescopic cylinder, configured to be releasably fixed to the rotor, and configured to drive the rotor to rotate relative to the stand by a stroke movement of the telescopic cylinder.

Abstract: In various embodiments, techniques are provided to determine channel characteristics of various communication systems such as OFDM systems or systems using a plurality of transmit antennas by using various sets of training symbols that produce zero cross-correlation energy. Channel communication can accordingly be simplified as the zero cross-correlation property allows for channel estimation without a matrix inversion.

Abstract: An example method of scanning a guest virtual address (GVA) space generated by a guest operating system executing in a virtual machine of a virtualized computing system includes setting, in a scan of the GVA space by a hypervisor that manages the virtual machine, a current GVA to a first GVA in the GVA space; executing, on a processor allocated to the virtual machine, an address translation instruction, which is in an instruction set of the processor, to perform a first address translation of the current GVA; reading a register of the processor to determine a first error resulting from the first address translation; determining, in response to the first error, a level of a faulting page table in a first page table hierarchy generated by the guest operating system; and setting the current GVA to a second GVA based on the level of the faulting page table.

Abstract: System and method for providing secure execution environments in a computer system uses an enclave virtual computing instance to create a secure execution environment, which is deployed in response to a request for such a secure execution environment for content from a software process running in the computer system.