Abstract: A method for synchronizing data among heterogeneous data sources is disclosed. The method may comprise obtaining a synchronization task and a corresponding operation classification, determining one or more Reader plugins and Writer plugins based on the corresponding operation classification, segmenting the synchronization task based on the one or more Reader plugins and Writer plugins to generate a Task queue, and using a corresponding number of the Reader plugins and the Writer plugins based on the Task queue to implement the synchronization task. The one or more Reader plugins may be configured to read data from a source and to send to the one or more Writer plugins, and the one or more Writer plugins may be configured to write the data to a destination.

Abstract: A method of multithreading extraction of data from a database is provided. The method comprises: acquiring a set of primary key character strings, the primary key character strings being uniquely associated with the data to be extracted from the database; extracting, from the primary key character strings, a first character string and a second character string; generating a first integer and a second integer based on: a preset base number, positions of characters included in the first and second character strings; determining a node segment based on the first and second integers, the node segment being associated with a node segment integer; converting the node segment integer to a node segment character; and generating an extraction statement associated with a thread for the node segment character converted from the node segment integer. The extraction statement can then be transmitted to a database when the thread is executed.

Abstract: A method of multithreading extraction of data from a database is provided. The method comprises: acquiring a set of primary key character strings, the primary key character strings being uniquely associated with the data to be extracted from the database; extracting, from the primary key character strings, a first character string and a second character string; generating a first integer and a second integer based on: a preset base number, positions of characters included in the first and second character strings; determining a node segment based on the first and second integers, the node segment being associated with a node segment integer; converting the node segment integer to a node segment character; and generating an extraction statement associated with a thread for the node segment character converted from the node segment integer. The extraction statement can then be transmitted to a database when the thread is executed.

Abstract: A method for synchronizing data among heterogeneous data sources is disclosed. The method may comprise obtaining a synchronization task and a corresponding operation classification, determining one or more Reader plugins and Writer plugins based on the corresponding operation classification, segmenting the synchronization task based on the one or more Reader plugins and Writer plugins to generate a Task queue, and using a corresponding number of the Reader plugins and the Writer plugins based on the Task queue to implement the synchronization task. The one or more Reader plugins may be configured to read data from a source and to send to the one or more Writer plugins, and the one or more Writer plugins may be configured to write the data to a destination.

Abstract: A feedback control module for stabilizing a carrier-envelope phase of an output of a laser oscillator system comprises a first photodetector, a second photodetector, a phase stabilizer, an optical modulator, and a thermal control element. The first photodetector may generate a first feedback signal corresponding to a first portion of a laser beam from an oscillator. The second photodetector may generate a second feedback signal corresponding to a second portion of the laser beam filtered by a low-pass filter. The phase stabilizer may divide the frequency of the first feedback signal by a factor and generate an error signal corresponding to the difference between the frequency-divided first feedback signal and the second feedback signal. The optical modulator may modulate the laser beam within the oscillator corresponding to the error signal. The thermal control unit may change the temperature of the oscillator corresponding to a signal operable to control the optical modulator.

Abstract: A feedback control module for stabilizing a carrier-envelope phase of an output of a laser oscillator system comprises a first photodetector, a second photodetector, a phase stabilizer, an optical modulator, and a thermal control element. The first photodetector may generate a first feedback signal corresponding to a first portion of a laser beam from an oscillator. The second photodetector may generate a second feedback signal corresponding to a second portion of the laser beam filtered by a low-pass filter. The phase stabilizer may divide the frequency of the first feedback signal by a factor and generate an error signal corresponding to the difference between the frequency-divided first feedback signal and the second feedback signal. The optical modulator may modulate the laser beam within the oscillator corresponding to the error signal. The thermal control unit may change the temperature of the oscillator corresponding to a signal operable to control the optical modulator.