Abstract: Embodiments of the present disclosure relate to a method for I/O data transmission in a Hyper-Converged Storage System (HCSS). The HCSS comprises at least one storage node having at least one device constructed with virtualization technology and a storage I/O processing module for accessing persistent storage resource of the HCSS. According to the method, an I/O request of a first type is received from the device by a System Disk front-end driver (SFD), wherein the I/O request of the first type is an I/O request to a system disk of the device. The I/O request of the first type and its corresponding response of a first type are transferred by the SFD between the device and the storage I/O processing module via a first shared memory, wherein the first shared memory is created by allocating a first memory region of the HCSS as the first shared memory.

Abstract: A data processing method, a node, a blockchain network, and a virtual data carrier are provided. The data processing method includes receiving a block addition message which is with respect to a target virtual data carrier and sent by any one node in a blockchain network, the block addition message including a digital identifier and data change information, the blockchain network including a plurality of virtual data carriers storing data character information, and each virtual data carrier is provided with a unique digital identifier and corresponds to at least one blockchain; acquiring target blockchain information corresponding to the target virtual data carrier, according to the digital identifier corresponding to the target virtual data carrier; and judging, based on data change history information of at least one block in the target blockchain information, whether the data change information is legitimate, and if legitimate, confirming the data change information.

Abstract: The invention belongs to the field of chemical separation, hydrometallurgy and resource recovery and provides a method for preparing and applying of ion-keeper adsorbent. By adjusting the pH to selective oxidation to achieve the oxidation of ferrous iron into ferric iron. Separates the iron after the hydrothermal reaction; By using of ion imprint “ion keeper” effect and biomass as raw materials, to prepare the adsorbent with internal rules, hierarchical pores and high selectivity. It can be used for deep purification of chromium solution, such as iron, aluminum, vanadium and other impurities in the solution; After the deep purification of chromium solution, then adjusting the pH, adding appropriate hydrating agent, by hydrothermal precipitation treatment of chrome, filtration, acid washing and calcination to obtain chromium oxide crystal. It achieves the purification of chromium, iron, aluminum and chromium. The recycling and comprehensive utilization of waste resources are also realized.

Abstract: The present application relates to an adjustment bushing, a steering column and a vehicle. The adjustment bushing comprises: a frame provided with a linear track that allows an adjusting bolt to slide left and right; and damping structures respectively disposed near both ends of the linear track and including convex hulls extending from upper and lower inner sides of the frame into the linear track, wherein, when the adjusting bolt slides to both ends of the linear track to extreme positions of the linear track, the convex hulls are squeezed between the adjusting bolt and the frame to play a damping role. The adjustment bushing can rebound after the endurance adjustment, has excellent noise reduction and energy absorption effect, and improves the durability and service life of the adjustment bushing.

Abstract: A method for determining a source of pollutant emissions for a selected area includes: mapping a grid onto a representation of the selected area; collecting monitoring data for the selected data; from the monitoring data, assigning air pollution values and weather values to each cell in the grid using an interpolation method to estimate values for gap cells; re-sizing the grid to mitigate the influence of atmospheric turbulence on the air pollution values; and using weather factor separation to minimize the influence of weather from the air pollution values, resulting in air pollution values that reflect the net pollutant emissions for the selected area.

Abstract: An event analysis device having an event collector for collecting event log data representing an operation history by a DCS operator; an event analyzer for analyzing the event log data, and extracting basic unit operations or unit operations representing an operation method based on operations of the DCS operator or an operation intention based on operations of the DCS operator; an operation sequence extractor for extracting operation sequences which the basic unit operations or the unit operations are aligned in accordance with time order in every service time period; an operation clusterer for clustering the operation sequences based on similarity among the operation sequences extracted in every service time period; and an operation procedure generator for analyzing the operation sequences clustered in same type, and estimating a structure of the operation procedure based on the operation of the DCS operator.

Abstract: The present invention discloses a voltage reference reconfiguration fault-tolerant control method for a cascaded multi-level inverter. The fault-tolerant method for the inverter automatically reconfigures the three-phase voltage amplitudes and phases of the three-phase total voltage in accordance with the fault diagnosis, thus realizing three-phase voltage balance. On the basis of the reconfiguration of the total voltage signal, re-reconfiguration of reference voltage inputted into the various H-bridges is conducted in accordance with the fault signal vectors, thereby realizing removal of the fault bridges and fault-tolerance of the normal bridges, while guaranteeing the integral sinusoidal characteristics of the actual reference voltage. The inverter realized maximum three-phase balanced line voltage in a fault occurrence, has the advantages of requiring no redundant modules and algorithms and the advantages of ease of removing fault bridges, and is applicable for reduced load operable electrical equipment.

Abstract: This disclosure provides a computer-implemented method for data storage in a non-relational database. The method comprises receiving a data item to be inserted into a table in the non-relational database. The method further comprises determining a dynamic data section and a static data section of the received data item. The method further comprises in response to the static data section not existing in the static data storage area, storing the static data section in the static data storage area. The method further comprises storing the dynamic data section in the dynamic data storage area.

Abstract: Technical solutions are described for optimizing operation of a server cluster. An example method includes receiving a job request that executes using a set of data blocks, the job request being associated with an expected completion time. The cluster server is used to identify a set of replica servers, wherein each server from the set of replica servers contains the set of data blocks. In response to each server from the set of replica servers estimating a completion time for the job request that is more than the expected completion time, a new server is initiated, the set of data blocks is relocated from a first server from the set of replica servers to the new server, and the job request is allocated to the new server.

Abstract: An event analysis device includes an event collector configured to collect event log data which represents operation history of a DCS operator; an event analyzer configured to analyze event log data collected by the event collector to extract analysis result data representing operation method based on the operation of the DCS operator or analysis result data representing operation intention based on the operation of the DCS operator; an operation sequence extractor configured to extract analysis result data respectively in every period in specified multiple periods and extract operation sequence sorting analysis result data based on operation time; and an operation sequence clusterer configured to cluster the operation sequence based on the degree of the similarity between the operation sequences which are different from each other.

Abstract: An event analyzer includes: an event collector configured to collect event log data representing operation history which an DCS operator performed; a basic unit operation analyzer configured to analyze event log data, and extract basic unit operation data representing operation method based on the operation by the DCS operator; and an unit operation analyzer configured to analyze basic unit operation data, and extract unit operation data representing intention of the operation by the DCS operator.

Abstract: An event analyzing device includes an event collector configured to collect log data of a manual operation event performed by an operator of a plant, an event analyzer configured to analyze a manual operation method or a manual operation intention of the manual operation event based on the log data, a manual operation sequence extractor configured to extract the manual operation method or the manual operation intention for each predetermined period as manual operation sequences in order of time, a manual operation sequence classifier configured to classify the manual operation sequences in which manual operations are in a similar order from among the manual operation sequences, a manual operation procedure constructor configured to construct a manual operation procedure of the operator based on the manual operation sequences, a process data collector configured to collect process data of the plant, and a manual operation condition estimator configured to estimate an execution condition under which manual oper

Abstract: This disclosure provides a computer-implemented method. The method may comprise estimating a value range of a water body parameter based on measured data for a water quality indicator of a first set of time-spatial points and measured data for the water quality indicator of a second set of time-spatial points; and determining an optimal value of the water body parameter from the estimated value range by comparing the measured data for the water quality indicator of the second set and simulated data for the water quality indicator of the second set, wherein the simulated data for the water quality indicator of the second set is obtained based on a fluid dynamic model using the measured data for the water quality indicator of the first set as an input of the fluid dynamic model and using a value in the estimated value range as a parameter of the fluid dynamic model.

Abstract: Embodiments of the present disclosure relate to a method for I/O data transmission in a Hyper-Converged Storage System (HCSS). The HCSS comprises at least one storage node having at least one device constructed with virtualization technology and a storage I/O processing module for accessing persistent storage resource of the HCSS. According to the method, an I/O request of a first type is received from the device by a System Disk front-end driver (SFD), wherein the I/O request of the first type is an I/O request to a system disk of the device. The I/O request of the first type and its corresponding response of a first type are transferred by the SFD between the device and the storage I/O processing module via a first shared memory, wherein the first shared memory is created by allocating a first memory region of the HCSS as the first shared memory.

Abstract: An air intake duct includes an air intake duct body (11) which includes an air intake part (111) and a connecting part (112) connected with the air intake part (111). A first channel is formed inside the air intake part (111), a second channel intercommunicating with the first channel is formed inside the connecting part (112), one side of the connecting part (112) is provided with a connecting surface (112a) which inclines towards an axis of the air intake duct body (11), the connecting surface (112a) is inclined and extended from a connection joint of the connecting part (112) and the air intake part (111) to an end portion of the connecting part (112), and the first channel has a larger cross section area than the second channel.

Abstract: The field of advanced wastewater treatment, and more specifically, to a natural pyrrhotite biofilter and a method for utilizing same to synchronously remove nitrate-nitrogen and phosphorus from water is provided. The method includes the following steps: (1) preparation of the packing material and construction of the biofilter; (2) start-up of the biofilter; (3) operation of the biofilter. The method disclosed in the present invention on the one hand takes pyrrhotite as the electron donor to help sulfur-based autotrophic denitrifying bacteria reduce nitrates into nitrogen gas, and on the other hand utilizes pyrrhotite and its oxidates to eliminate phosphorus through adsorption and chemical precipitation. Therefore, this method realizes synchronous removal of nitrate-nitrogen and phosphorus in water.

Abstract: This disclosure provides a computer-implemented method for data storage in a non-relational database. The method comprises receiving a data item to be inserted into a table in the non-relational database. The method further comprises determining a dynamic data section and a static data section of the received data item. The method further comprises in response to the static data section not existing in the static data storage area, storing the static data section in the static data storage area. The method further comprises storing the dynamic data section in the dynamic data storage area.

Abstract: A pick arm for a pick and place apparatus for semiconductor devices, the pick arm comprising first and second ends along a longitudinal axis of the pick arm, and a pick tool located at the first end of the pick arm for picking up semiconductor devices. The pick arm further comprises a winged part extending in a direction transverse to the longitudinal axis between the first and second ends of the pick arm, wherein the winged part comprising a sloping surface. The sloping surface is inclined between a top portion and a bottom portion of the winged part such that the sloping surface is nearer to the longitudinal axis at the top portion than at the bottom portion of the winged part.

Abstract: The invention belongs to the field of chemical separation, hydrometallurgy and resource recovery and provides a method for preparing and applying of ion-keeper adsorbent. By adjusting the pH to selective oxidation to achieve the oxidation of ferrous iron into ferric iron. Separates the iron after the hydrothermal reaction; By using of ion imprint “ion keeper” effect and biomass as raw materials, to prepare the adsorbent with internal rules, hierarchical pores and high selectivity. It can be used for deep purification of chromium solution, such as iron, aluminum, vanadium and other impurities in the solution; After the deep purification of chromium solution, then adjusting the pH, adding appropriate hydrating agent, by hydrothermal precipitation treatment of chrome, filtration, acid washing and calcination to obtain chromium oxide crystal. It achieves the purification of chromium, iron, aluminum and chromium. The recycling and comprehensive utilization of waste resources are also realized.