Abstract: The present invention relates to a cloud software service resource allocation method based on QoS model self-correction, the method comprising: step S1: performing online self-learning to obtain a QoS prediction model; step S2: collecting runtime data under a certain workload, and improving the accuracy of the QoS prediction model under a current workload through self-correction control; step S3: constructing a fitness function in combination with the quality of service (QoS) and the cloud resource cost (Cost), and searching for a target resource allocation scheme by using an improved particle swarm optimization algorithm; step S4: comparing the current resource allocation situation with the searched target resource allocation scheme to obtain a difference therebetween, and then adjusting resources according to a certain proportion; and step S5: repeating steps S2 to S4 until the current resource allocation situation is the same as the target resource allocation scheme which means that resource adjustment is

Abstract: Controlling application logging, including: identifying one or more relationships between a plurality of classes of an object oriented application; generating a tree structure comprised of a plurality of nodes and a plurality of branches, where each of the plurality of branches is comprised of at least one node from the plurality of nodes, based on the one or more identified relationships, where a first one or more nodes of the plurality of nodes correspond to one or more classes of the object-oriented application; assigning a weight to each of the plurality of branches, based at least in part on an identified relationship corresponding to each of the one or more nodes comprising each of the plurality of branches; and determining a logging level to each branch of the plurality of branches, based on the assigned weight for each branch of the plurality of branches.

Abstract: A method for monitoring large deformation of a surrounding rock of a tunnel based on an automatic targeting and ranging system includes: acquiring, by a camera module, a target monitoring image; identifying a center image position in the target monitoring image; performing, by a laser ranging module, an automatic targeting and ranging task according to the center image position; and calculating a deformation offset of each target of left wall targets, right wall targets and a vault target based on an automatic targeting and ranging result corresponding to the target. The method solves the problem that a laser ranging device fails to measure a target at a fixed angle and obtains a real and accurate deformation offset thereby greatly improving the reliability of the large deformation monitoring result of the surrounding rock of the tunnel.

Abstract: The present invention provides a high voltage ride-through method for wind power based on coordinated control of energy storage and reactive compensation devices, comprising fault determination based on voltages of grid connection points of wind farms; setting voltage fluctuation thresholds of grid connection points under faults, and determining whether to implement super capacitor, doubly-fed induction generator, and static var generator coordinated control strategies based on voltage fluctuation thresholds of grid connection points of commutation bus voltages under faults; calculating reactive power shortage of grid connection points under faults based on the control strategies; and determining whether the reactive power shortage of grid connection points is within wind farm regulation ranges and implement corresponding control strategies to adjust voltages based on the reactive power shortage; and determining whether to utilize static var generators to compensate reactive power based on reactive power comp

Abstract: A core-shell gradient ternary precursor and a preparation method and application thereof. The preparation method includes (1) mixing a terephthalic acid solution with alkaline liquor to obtain a terephthalic acid salt solution, adding a nickel source solution for a reaction to obtain a Ni-MOF solution, mixing the Ni-MOF solution with ammonia water, and adjusting a pH value to obtain a base solution; and (2) adding a nickel-cobalt-manganese ternary mixed salt solution, a liquid alkali solution, and an ammonia-water solution simultaneously to the base solution obtained in step (1) for a co-precipitation reaction, and obtaining the core-shell gradient ternary precursor after aging treatment. The Ni-MOF is pre-prepared and used as a core for the co-precipitation reaction, to obtain the core-shell like precursor with a gradient. Carbon in the core of the core-shell gradient ternary precursor reacts with oxygen, thereby reducing a nickel oxidation state on particle surfaces and reducing crack generation.

Abstract: An aerosol-generating device is provided. The device includes a liquid storage portion, a first atomization cavity, a second atomization cavity, a first heating element, a second heating element, and a switching assembly. A first liquid storage cavity, a second liquid storage cavity, and a main airway are defined in the liquid storage portion. A first movable member of the switching assembly is movably arranged, to cause the main airway to be selectively in communication with any one of the first atomization cavity or the second atomization cavity, or to cause the main airway to be in communication with both the first atomization cavity and the second atomization cavity.

Abstract: A scan circuit having a plurality of stages is provided. A respective stage includes a respective scan unit configured to provide a control signal to at least a row of subpixels. The respective scan unit includes an input subcircuit configured to receive a start signal or an output signal from a previous scan unit, a first processing subcircuit, a second processing subcircuit, and an output subcircuit. The output subcircuit includes a first output transistor. The input subcircuit includes a first input transistor and a second input transistor sequentially coupled between an input terminal and a first node. The first node is coupled to a gate electrode of the first output transistor. The first processing subcircuit includes a first switch transistor and a second switch transistor coupled between the first node and a first reference terminal. The first reference terminal is configured to receive a first reference signal.

Abstract: Techniques are described herein for performing a flush operation for a write booster buffer of a memory system. The flush operation may include swapping valid blocks in the write booster buffer for invalid blocks in a storage space of the memory system. After swapping the blocks, the memory system may transfer the information from a first type of blocks that were formerly assigned to the write booster buffer to a second type of blocks in the storage space. In such a flush operation, space is made available in the write booster buffer with less latency than it would take to transfer information between blocks, thereby improving the performance of the write booster mode.

Abstract: A battery temperature control method and a battery temperature control device uses a controller to execute a temperature control of a chargeable/dischargeable battery installed in an electric vehicle. The controller acquires battery information including a temperature of the battery, a current temperature of the battery and a heat capacity of the battery, and predicts a scheduled time at which the temperature of the battery will be within a desired temperature range, or acquiring information pertaining to the scheduled time. The controller raises the temperature of the battery to the desired temperature range by the scheduled time by repeating a charge/discharge control of the battery as a heating control of the battery prior to the scheduled time where the temperature of the battery is below the desired temperature range.

Abstract: A coaxial waveguide-based geotechnical multi-point deformation sensor and an adjustable gauge-length measurement method are provided. The coaxial waveguide-based geotechnical multi-point deformation sensor includes an outer conductor, open at opposite ends and hollow inside; magnetic metal support frames, inside the outer conductor, sequentially spaced along an axial direction of the outer conductor and each having a through-hole; an inner conductor inside the outer conductor and passing through each through-hole; and annular magnets, surrounding the outer conductor and configured to move along it, driving the nearest magnetic metal support frame to follow its movement. Each magnetic metal support frame acts as a reflection point. By reconstructing the interference spectra of any two reflection points, a gauge-length can exist between any two of the magnetic metal support frames.

Abstract: Various embodiments include a data acquisition method including: generating a list of data points to be acquired from a field device; and performing the following separately for each data point. Parsing an address, and determining values of a region type, a DB offset, a byte offset and a bit offset in the address; using a first rule to calculate a sorting indicator of the data point according to the values determined; using a second predetermined rule to calculate a grouping indicator of the data point according to the determined values; sorting all of the data points according to the sorting indicators; dividing all of the sorted data points into multiple groups on the basis of the grouping indicator and a byte length of each data point and the length of a protocol data unit of the field device; and sending a data request for each group to the field device.

Abstract: An input stream of events is processed to obtain an output stream of events. Consecutive events are selected from the input stream using a sliding window to obtain sliding window events, then a function is applied thereto to obtain an output result value. Operations of: outputting the output result value in the output stream; splitting the sliding window events into filter-complying events and pending events; applying the function on the pending events to obtain preliminary value(s); selecting, from the input stream, a second plurality of events; adding the second plurality of events to the sliding window events; removing, from the sliding window events, the filter-complying events to obtain a new set of sliding window events; and applying the function to the second plurality of events and the preliminary value(s) to obtain a new output result value, are then iteratively performed.

Abstract: A method for monitoring large deformation of a surrounding rock of a tunnel based on an automatic targeting and ranging system includes: acquiring, by a camera module, a target monitoring image; identifying a center image position in the target monitoring image; performing, by a laser ranging module, an automatic targeting and ranging task according to the center image position; and calculating a deformation offset of each target of left wall targets, right wall targets and a vault target based on an automatic targeting and ranging result corresponding to the target. The method solves the problem that a laser ranging device fails to measure a target at a fixed angle and obtains a real and accurate deformation offset thereby greatly improving the reliability of the large deformation monitoring result of the surrounding rock of the tunnel.

Abstract: The present application discloses a multilevel cooperation-based unmanned aerial vehicle spraying operation method.

Abstract: A tracing system for managing failures of a service provided by a distributed system, the tracing system comprising a state machine store configured to store a distributed execution state machine (DESM), wherein states of the DESM correspond to predetermined milestones of the service and transitions of the DESM correspond to one or more instructions of the service; a logging unit configured to record events of the distributed system in a log store, wherein an event indicates a state and/or a transition of the DESM; a process reconstruction subsystem configured to reconstruct a trace of the DESM from the events stored in the log store; and a linking unit configured to link logging information of the distributed system to the states.

Abstract: The disclosure belongs to the field of integrated circuit technologies, and particularly relates to a pipelined analog-to-digital converter capable of correcting capacitor mismatch and inter-stage gain errors. According to the disclosure, a PN code is injected into a digital domain or an analog domain of a pipelined sub-analog-to-digital converter, a mean value of codes outputted by a sub-analog-to-digital converter of an (i+1)th pipeline stage in two cases that a PN code is equal to +1 and the PN code is equal to ?1 is counted under the condition that a code outputted by a sub-analog-to-digital converter of an ith pipeline stage is b, and a capacitor mismatch error and an actual inter-stage gain of the ith pipeline stage are estimated according to the mean value and a relationship between a capacitor mismatch error and an actual inter-stage gain error of a previous pipeline stage.

Abstract: A measurement system of a device under test (DUT) includes a reference clock synthesizer configured to generate a master reference clock signal, a transmitter unit connected to the reference clock synthesizer and configured to connect to the DUT, and a measurement control system connected to the transmitter unit and configured to control the transmitter unit to generate a test signal pattern based on a first reference clock signal derived from the master reference clock signal, and generate a signal for passing through the DUT based on the test signal pattern. A receiver unit connected to the reference clock synthesizer is configured to connect to the DUT and to detect the signal and generate a digital signal based on the signal and a second reference clock signal derived from the master reference clock signal. The measurement control system is configured to provide an output signal based on the digital signal.

Abstract: In one aspect, the disclosure relates to a process for dehydrogenating a first dehydrogenation reactant into its unsaturated counterparts. The disclosed process comprises introducing a dehydrogenation reactant to a metal oxide catalyst having dehydrogenation activity, and dehydrogenating the dehydrogenation reactant to provide its unsaturated counterpart and hydrogen; selectively combusting the hydrogen released during dehydrogenation using a lattice oxygen from the metal oxide catalyst, resulting in a reduced metal oxide catalyst and steam; re-oxidizing the reduced metal oxide catalyst by introducing a gaseous oxidant to the reduced metal oxide catalyst; and optionally re-using the re-oxidized metal oxide catalyst for catalytic conversion and combustion. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present disclosure.

Abstract: A method for preparing a collagen from a chromium-containing tanned leather waste is disclosed. The method includes acid dechromation, obtaining a collagen aggregate, and converting the collagen aggregate to the collagen. The method also includes a reaction in a supercritical carbon dioxide reactor.