Abstract: Semi-structured source data is preprocessed to obtain text partitions to be stored into a data table with a first combined primary key including a structure thread primary key and a sequence value primary key. The structure thread primary key identifies a structure thread that is segmented into several consecutive intervals according to a determined or predetermined sequence. An inverted index table, created for the preprocessed text partitions, includes a second combined primary key including the structure thread primary key and a keyword primary key. Corresponding to values of the primary keys in the second combined primary key, related text partition sequence IDs are recorded as index values of the inverted index table. Index values having a same keyword primary key value but different structure thread primary key values are located in different rows in the inverted index table. The present techniques improve query efficiency of database index and facilitate updating.

Abstract: The present invention discloses an installation structure for a wheel axle assembly and a wheel fork, a frame and a vehicle. The wheel axle assembly includes a wheel axle; a first bearing, a bush and a second wheel axle sleeved on the wheel axle successively; and a hub arranged on the outer rings of the first bearing and the second bearing, wherein the bush is used for spacing apart the first bearing and the second bearing axially a predetermined distance, and the hub is of a sleeve shape and an end thereof arranged on the first bearing expands the outer diameter to form a flange portion for fixing and installing a wheel; and the wheel fork includes a wheel fork body and a frame connection portion formed on an end of the wheel fork body and forming an L shape with the wheel fork body for connecting to a frame, and the wheel axle is fixed on the other end of the wheel fork body in a direction perpendicular to the rim center plane of the wheel.

Abstract: An oil-gas-water three-phase flow meter comprises a main pipeline, wherein a commingler, a pressure sensor and a gas-liquid two-phase flow meter are respectively provided on a horizontal straight pipe section of the main pipeline, a flow computer is provided on a gauge outfit of the gas-liquid two-phase flow meter, a sampling by-pass pipe is connected on the horizontal straight pipe section of the main pipeline between the commingler and the gas-liquid two-phase flow meter, a flow regulating valve and a gas-liquid cylindrical cyclone are provided on the sampling by-pass pipe, a vapor pipeline on a top of the gas-liquid cylindrical cyclone is connected with a gas flow meter, a bottom of the gas-liquid cylindrical cyclone is connected with the liquid outlet pipeline, a mass flow meter.

Abstract: The present disclosure provides a method for an authentication system to provide authentication information for a web page, comprising: receiving a request for authentication information from a web page; judging whether the web page is redirected to through a relevant search engine; judging whether the web page satisfies a condition of displaying the authentication information; and providing the authentication information to the web page satisfying the condition. By providing authentication information to a web site through a search engine, with the combination of the authentication system with the relevant search engine, the reliability and security of authentication information are enhanced. Besides, the user may autonomously edit and manage the displaying pattern of the authentication information, such that the authentication information may be displayed in real time on the web page.

Abstract: A powered threading machine is described. The threading machine is compact and portable. The threading machine includes a tube frame having a rearward wheel assembly and an extendable handle at the front of the machine. A particular sump configuration is used to prevent loss of cutting oil during operation and transport of the machine.

Abstract: Performing a non-disruptive upgrade of data in a storage system that includes a plurality of storage devices and a storage controller, including: creating new data in a new data format, wherein the new data includes a reference to old data in an old data format, wherein system software in the storage system can utilize data in the new data format and the old data format; determining that a portion of the volume has changed; and responsive to determining that the portion of the volume has changed, updating the new data to include a reference to old data associated with a portion of the volume that precedes the changed portion of the volume, new data associated with the changed portion of the volume, and a reference to old data associated with a portion of the volume that follows the changed portion of the volume.

Abstract: The present invention discloses a vehicle goods bracket which is provided at the side of a transport vehicle, and is capable of swinging outward and restoring inward, and which is capable of carrying goods up or down, so as to load and unload for the transport vehicle. The present invention also discloses a vehicle goods bracket set which includes a pair of vehicle goods brackets provided symmetrically at the two sides of the transport vehicle. The present invention further discloses a vehicle goods bracket group, comprising two sets of vehicle goods brackets which are adjacently arranged in the lengthwise direction of the transport vehicle, wherein each set of vehicle goods brackets comprises a pair of vehicle goods brackets provided symmetrically at the two sides of the transport vehicle.

Abstract: Embodiments relate to enhancing echo cancellation in a transceiver integrated circuit (IC) for full-duplex communication by providing a signal path connected to a dummy driver that replicates a signal path between a main driver and a counterpart transceiver IC to cause a duplicated signal generated by the dummy driver to more closely replicate a sending signal generated by the main driver. The signal path connected to the dummy driver includes circuit elements having transmission line parameters and RLC parameters that replicate transmission line parameters and RLC parameters of circuit elements in the signal path between the main driver and the counterpart transceiver IC.

Abstract: C-type tubing cutters are described. The cutters include a cutting wheel that can be easily and quickly replaced. In many versions of the cutters, the cutting wheel can be replaced without disassembly of the housing and/or without the use of tools.

Abstract: Systems and methods are disclosed for detecting a symbol in large-scale multiple-input multiple-output communication systems. The detection is based on an improved lattice-reduction-aided K-best algorithm. The detection finds K best candidate symbols with minimum costs for each layer based on a priority queue and an on-demand expansion. In a complex domain, the detection may include a 2-dimensional Schnorr-Euchner expansion or, in the alternative, a two-stage 1-dimensional Schnorr-Euchner expansion.

Abstract: A method and system determines an absolute Multicast-Broadcast Single Frequency Network (MBSFN) configuration based on a threshold. First saved radio resources and first wasted radio resources are calculated. The absolute MBSFN configuration is set as the final MBSFN configuration when the first saved radio resources are greater than or equal to the first wasted radio resources. When untrue, the absolute MBSFN configuration plus an adjacent cell pool is set as the final MBSFN configuration based on the final MBSFN configuration achieving a maximum value of second saved radio resources minus second wasted radio resources. When both of these conditions are untrue, the absolute MBSFN configuration minus an MBSFN cell pool is set as the final MBSFN configuration based on the final MBSFN configuration achieving a maximum value of third saved radio resources minus third wasted radio resources.

Abstract: A method for transmitting and receiving a source data block using hybrid automatic retransmission request protocol. At the transmitting side, the source data block that is not decoded correctly at the receiving side is divided into a plurality of data segments, each of which may be padded with known data to expand the data segments to be a predetermined lengthen. At the receiving side, when each of the received data packets includes a data segment and a redundancy information segment, decoding is performed based on the received data segment and redundancy information segment extracted from buffered data packets, with chances to restore the data segment that is not decoded correctly in previous decoding processing. The additional decoding chances improve the probability of correctly decoding the erroneous data segment.

Abstract: Embodiments of the present application relate to a method, a system and a computer program product for monitoring execution of a user request on a distributed system. A method for monitoring execution of user requests on a distributed system is provided. The method includes sampling a user request received by a plurality of servers, generating an identifier corresponding to the user request sampled by the plurality of servers, injecting tracking interfaces in advance into processes executed by the plurality of servers, determining whether the current process contain the identifier corresponding to the user request, in the event that the current process contains the identifier corresponding to the user request when the process has executed the tracking interface, recording information corresponding to the identifier relating to the function indicated by the tracking interface and generating a log, and individually collecting the generated log according to the corresponding identifier.

Abstract: This invention relates to an apparatus and a method for multistage hierarchical pyrolysis and gasification of solid fuels. The apparatus comprises a feeding device 1, a multistage fluidized bed reactor 6, a residual discharging valve 9, a cyclone 10 and a condenser 11. A gas inlet is provided at the bottom of the multistage fluidized bed reactor 6 and a number of stages of fluidized beds 3 are provided within the multistage fluidized bed 6, wherein the fluidized beds 3 are separated by a number of perforated distributors 5. The top stage fluidized bed 3 is connected with the feeding device 1 and the coal fed thereto is heated by char obtained from pyrolysis in this stage and the mixture of high temperature ascending pyrolysis and gasification gas to undergo pyrolysis reactions at low temperature, thereby to obtain solid particles after preliminary pyrolytic process.

Abstract: Embodiments of the present application relate to a code coverage rate determination method, a code coverage rate determination system, and a computer program product for determining code coverage rate. A code coverage rate determination method is provided. The method includes retrieving source code of a program, determining theoretical number of log file output points included in the source code and location information of the log file output points, retrieving log files actually outputted during the execution of the program, determining an actual number of log file output points of the actual outputted log files based on the location information of the corresponding log file output points recorded in each log file, and determining a code coverage rate of the program based on the theoretical number of log file output points and the actual number of the log file output points of the actual outputted log files.

Abstract: Embodiments relate to enhancing echo cancellation in a transceiver integrated circuit (IC) for full-duplex communication by providing a signal path connected to a dummy driver that replicates a signal path between a main driver and a counterpart transceiver IC to cause a duplicated signal generated by the dummy driver to more closely replicate a sending signal generated by the main driver. The signal path connected to the dummy driver includes circuit elements having transmission line parameters and RLC parameters that replicate transmission line parameters and RLC parameters of circuit elements in the signal path between the main driver and the counterpart transceiver IC.

Abstract: A powered threading machine is described. The threading machine is compact and portable. The threading machine includes a tube frame having a rearward wheel assembly and an extendable handle at the front of the machine. A particular sump configuration is used to prevent loss of cutting oil during operation and transport of the machine.

Abstract: Methods and apparatus reducing or eliminating the number of multipliers in Schnorr-Euchner expansion algorithms are disclosed. Methods and apparatus for implementing Schnorr-Euchner expansion algorithms with a reduced number of multipliers or without any multipliers are also disclosed. Also disclosed is a Schnorr-Euchner expansion method for a multiple-input multiple-output communication system. The method includes receiving, by a plurality of input terminals, a plurality of input signals. The method also includes detecting a symbol transmitted by each input signal. The detection includes identifying a list of possible symbols that may be transmitted by each input signal. A cost value for each possible symbol is determined based on a cost function. The cost function is implemented without requiring a multiplier. The possible symbol with a lowest cost value is identified as the transmitted symbol.

Abstract: The present disclosure provides a life detection processing method, device and terminal. The method includes that: a WiFi electromagnetic wave is emitted; coherent waves of a reflected wave of the WiFi electromagnetic wave and the WiFi electromagnetic wave are received; and life information is determined according to the received coherent waves. The method solves the problems about the life detection in related art that it is not convenient for users to operate, the penetration is low and the general feature is poor, while offering portability, usability and timeliness of use.

Abstract: Systems and methods are disclosed for detecting a symbol in large-scale multiple-input multiple-output communication systems. The detection is based on an improved lattice-reduction-aided K-best algorithm. The detection finds K best candidate symbols with minimum costs for each layer based on a priority queue and an on-demand expansion. In a complex domain, the detection may include a 2-dimensional Schnorr-Euchner expansion or, in the alternative, a two-stage 1-dimensional Schnorr-Euchner expansion.