Abstract: The present invention discloses a chromatographic analysis device based on a multifunctional integrated probe, and a use method of the chromatographic analysis device. The chromatographic analysis device integrates chromatographic sampling, sample injection and separation functions into the integrated probe. Meanwhile, the present invention further discloses a method for performing microsample analysis by the chromatographic analysis device based on the multifunctional integrated probe. The present invention has the main advantages as follows: the device is high in integration level, small in dead volume, simple in structure, convenient to use and particularly suitable for microsample analysis with a small sample amount, provides a new chromatographic sample injection mode for chromatographic analysis, and provides an ideal platform for chromatographic analysis and on-site chromatographic analysis of a trace amount of samples.

Abstract: A semiconductor structure and its fabrication method are provided in the present disclosure. The method includes providing a base substrate, forming a plurality of discrete core layers on the base substrate, forming an isolation layer on a top surface of a core layer, forming a sacrificial layer on the base substrate and exposing a top surface of the isolation layer, removing the isolation layer after forming the sacrificial layer, removing the sacrificial layer after removing the isolation layer, forming a mask layer on a sidewall surface of the core layer after removing the sacrificial layer, and removing the core layer after forming the mask layer.

Abstract: The present invention discloses a chromatographic analysis device based on a multifunctional integrated probe, and a use method of the chromatographic analysis device. The chromatographic analysis device integrates chromatographic sampling, sample injection and separation functions into the integrated probe. Meanwhile, the present invention further discloses a method for performing microsample analysis by the chromatographic analysis device based on the multifunctional integrated probe. The present invention has the main advantages as follows: the device is high in integration level, small in dead volume, simple in structure, convenient to use and particularly suitable for microsample analysis with a small sample amount, provides a new chromatographic sample injection mode for chromatographic analysis, and provides an ideal platform for chromatographic analysis and on-site chromatographic analysis of a trace amount of samples.

Abstract: The present application relates to a method for evaluating an operation of a distribution network based on data capture and Spark. The method includes: acquiring a packet from a terminal, and mirroring the packet through a mirroring port of a switch to acquire a mirror packet of the packet; analyzing the mirror packet, acquiring a 101/104 protocol packet, and storing the 101/104 protocol packet into an HDFS; acquiring the 101/104 protocol packet from the HDFS, parsing the 101/104 protocol packet on a Spark platform to acquire a parameter in the 101/104 protocol packet, and analyzing and processing the parameter to obtain a key indicator for evaluating the operation of the distribution network; and displaying the key indicator through a web page.

Abstract: A semiconductor structure and its fabrication method are provided in the present disclosure. The method includes providing a base substrate, forming a plurality of discrete core layers on the base substrate, forming an isolation layer on a top surface of a core layer, forming a sacrificial layer on the base substrate and exposing a top surface of the isolation layer, removing the isolation layer after forming the sacrificial layer, removing the sacrificial layer after removing the isolation layer, forming a mask layer on a sidewall surface of the core layer after removing the sacrificial layer, and removing the core layer after forming the mask layer.