Journal of Henan Polytechnic University(Natural Science) Articles

Articles>Articles Overview

1Research state and its development trends for control function of geological structure to coal and gas outburst1-7,13

2Study on technique application of eliminating outburst by extracting gas from shallow hole in the fully mechanized mining face8-13

3Experimental research on principle of coal oxidation under moderate temperature14-18

4Safety relief system size calculation for Acetic hydroperoxide19-23

5Feasibility study for light-supports applied in thinner thick-seam24-28

6Experimental research on the swelling stress of limestone in the second coal mine of Tian'an,Pingdingshan city29-32

7A review of test technique and theory of modeⅠrock fracture toughness33-38

8Progress in experimental research on hydraulic characteristics of single-fractured rock39-44

9Ascertain well logging lithology section of lower Paleozoic carbonate strata in north basin45-50,81

10Mine inflow prediction and numerical simulation on descending flow field of karst water based on Visual Modflow51-54

11Building measured atmospheric refraction delay model using astronomical observation55-60

12GIS-based ecological sensitivity analysis in Jiaozuo61-66

13Analysis and evaluation on the characteristic of Zhumadian tourism resources67-70

14Canny operator detection based on wavelet transform71-74

15Simulation and experiment on torque control strategy of six-phase induction machine75-81

16Research on direct torque control of induction machine based on the combination of the torque error prediction and SVPWM82-85,106

17Line fault location research based on two-terminal asynchronous data86-89

18Control modeling of a grid-connected photovoltaic inverter based on state-space average method90-93

19The research on kindling characteristic testing system of electrical arc discharge in intrinsic safety circuit94-99

20Application of new wavelet threshold in signal-denoise for variable frequency and speed regulation system100-106