Zhen’an Liu

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The problem of networked control systems (NCSs) with node device acting over a limited communication channel is investigated. We are particularly interested in the case where the plant measurement and controller output are both split into different packets and only one packet of each can be transmitted at a time. Stability of multiple-packet transmission(More)
For the stability analysis of the networked control system (NCS) with random network-induced delays, which were considered to be governed by an underlying Markov chain with unknown probability distribution, the hidden Markov model (HMM) theory was proposed to model this kind of NCS as a jump linear system, wherein the output feedback controller was adopted.(More)
The problem of data dropout and transmission delays induced by communication channel in networked control systems (NCSs) was investigated in this paper, where output feedback control law was employed. These delays and data dropout might deteriorate the system performance and even cause the system instability. To guarantee the stability of such NCSs, we(More)
Since the Tianshan Radio Experiment for Neutrino Detection (TREND) has successfully announced its first result, the Giant Radio Array for Neutrino Detection (GRAND) prototype is proposed to validate the concept of extensive air shower detection with a very high background rejection. High speed digitizing (1GHz), 12bits dynamic range and less than 10ns(More)
Nanosized La0.7Sr0.3MnO3 /Pr0.5Sr0.5MnO3 ~LSMO12xPSMOx) ceramic composites are prepared using solid-sate sintering. Their microstructural, electroand magnetotransport properties are characterized by means of various techniques. It is found that the antiferromagnetic/ferromagnetic coupling between PSMO/LSMO at low temperature and the weak ferromagnetic order(More)
In the ETOF(End-cap TOF) upgrade of BESIII, MRPC(Multi-gap Resistive Plate Chamber) detectors are used. ETOF is designed with 72 MRPCs. 24 channels signal are read out from each MRPC, in which 6 neighbouring channels OR together in Front-End Electronic(FEE) side. So 288 channel hit signals are sent to ETOF trigger system for trigger logic. The MPRC hit(More)
OBJECTIVE To study the changes of phonetic features of Chinese speech during head-down bed-rest (HDBR) simulated weightlessness. METHOD During -6 degrees HDBR in 6 healthy subjects (20-30 years), acoustic-phonetic features were analyzed. RESULT The duration of utterance was slightly increase in the first two days, and recovered after the fourth day of(More)
A novel field-programmable gate array (FPGA)-based online tracking algorithm for helix track reconstruction in a solenoidal field, developed for the Antiproton Annihilations at Darmstadt spectrometer, is described. Employing the straw tube tracker detector with 4636 straw tubes, the algorithm includes a complex track finder and a track fitter. Implemented(More)
As physicists want to put more and more functionalities and algorithms into frontend ASICs, the logic design (of some ASICs) become more and more complicated. A reliable, robust functional verification testbench is one of the most important part during ASIC design. This paper presents a well-constructed testbench based on Universal Verification(More)
The Belle II experiment is the major upgrade of the Belle experiment, which verified Kobayashi–Maskawa mechanism to explain the violation of charge and parity symmetry in the Standard Model. The Belle II experiment will focus on a search for physics beyond the standard model with the upgraded high-luminosity electron-positron collider, SuperKEKB at(More)