Journal of Liaocheng University（Natural Science Edition) Articles

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1A Proof of the Calculation Formula for Geodesictorsion on Surface and Its Application1-4

2Mean-Risk Models Based on Sine Entropy5-8,23

3Two-direction S-rough Interval-valued Fuzzy Set9-11,20

4Based on Covering the Third Type Model of Granular Computing12-15

5SparsityPreservingDiscriminant Analysis Based on Spectral Techniques16-20

6Importation Law of Fuzzy Coimplication Operators21-23

7Existence of Positive Solutions Forsecond-order M-point Boundary Value Problems24-30

8Periodic Solutions of an SIS Epidemic Model with Vertical Transmission and Birth Pulses31-35,84

9Phase Behavior of New Aqueous Two-phase Systems:1-Butyl-3-methylimidazolium Tetrafluoroborate/Anionic Surfactants/Water36-41

10Progresses of the Researches on Bismuth Layer Structure Lead-free Piezoelectric Ceramics42-45

11Growth and Optical Properties of (Na_(0.5)Bi_(0.5))_(0.945)Ba_(0.055)TiO_3 Single Crystal46-49

12Properties of BNBT Modified KNN-based Lead-free Piezoceramics50-53,107

13Research on the Extraction Technology with Microwave of Resveratrol from Polygonum Cuspidatum Sieb.Et Zucc54-56,102

14SVAR Analysis of Monetary Policy Transmission Mechanisms of China57-61

15Game Models of University Library Knowledge Alliance Based on the Degree of Knowledge Contribution62-65

16On Thinking about Teaching of Modern Algebra——Take Yili Normal University as an Example66-68

17Based on the AT89C51 MCU Unidirectional Point-to-point Data Transmission Circuit PROTUES Virtual Simulation69-74

18Reform in Experiment Teaching of Programming Based on PTA Scale75-78

19FPGA-based Design and Implementation of Asynchronous FIFO79-84

20An ID-based(k,t,n) Threshold Group Signature Scheme85-88