Study on simulation test technology of rock landslide pregnant and sliding mechanism

2013 ◽  
pp. 851-854
Author(s):  
Xianchun Ma
Keyword(s):  
Simulation Test ◽  
Sliding Mechanism ◽  
Test Technology ◽  
Rock Landslide

Pregnant Mechanism and Mechanical Model of Rock Landslides in Chair-Shaped Cataclinal Bank Slopes

2014 ◽  
Vol 580-583 ◽  
pp. 2589-2599
Author(s):  
Xian Chun Ma ◽  
Xi Chang Chen ◽  
You Jun Feng
Keyword(s):  
Mechanical Model ◽  
Critical Value ◽  
Control Measures ◽  
Monitoring Methods ◽  
Reservoir Water ◽  
Reservoir Water Level ◽  
Sliding Mechanism ◽  
Groundwater Supply ◽  
Rock Landslide ◽  
The Stability

The pregnant and sliding mechanism was firstly compared between Vajont and Qianjiangping large rock landslides, which happened in the chair-shaped cataclinal bank slopes. And then the essence of the landslides occurred was deduced. The pregnant and sliding process of the landslides was showed two stages. First, after the first impoundment of the reservoir, the soil and shallow rock at the front of the landslides were slipped and then caused posterior margin of the deep latent sliding surface cracks. So the groundwater supply condition was significantly changed. Second, with the rapidly increase of the groundwater recharge, its pressure on the front of the landslides was also rapidly rise to the critical value which the landslides occurred. Afterwards, the stability mechanical model of the chair-shaped cataclinal bank slopes and critical value formula of the groundwater pressure were established on the basis of the stability mechanical model of general chair-shaped cataclinal slopes, added reservoir water level which was a dynamic load. While working procedures to determine the groundwater pressure was put forward. Last, the theory was certified validity take Liangshuijing rock landslide of the Three Gorges Project area as an example and the monitoring methods and control measures for the landslide were proposed.

Research on high dynamic flight simulation test technology

2021 ◽  
Author(s):  
Hao Zhang ◽  
Chenfei Yu ◽  
Guohua Zhang ◽  
Zhong Wan
Keyword(s):  
Flight Simulation ◽  
Simulation Test ◽  
Test Technology ◽  
High Dynamic

Analysis and Evaluation of Artillery Fire Simulation Test

2014 ◽  
Vol 620 ◽  
pp. 632-637 ◽  
Author(s):  
Ting Gao ◽  
Chi He ◽  
Zhao Jun Fan ◽  
Hong Li Guo
Keyword(s):  
Experimental Data ◽  
Comprehensive Evaluation ◽  
Fuzzy Comprehensive Evaluation ◽  
Research Direction ◽  
Simulation Test ◽  
Analysis And Evaluation ◽  
Simulation Techniques ◽  
Test Technology ◽  
Hierarchy Process ◽  
Similar Dynamic

The artillery test of firing simulation provides the similar dynamic recoil effects of artillery, by means except firing. It is more safe and convenient with less ammunition and time consumed. This document describes the meaning and content of the artillery test of firing simulation. It analyses the feasibility of this test technology by calculating and comparing the experimental data of guns and makes a research and analysis for current situation and development of the related technology In the domestic and overseas. Through fuzzy comprehensive evaluation (FCE) and analysis hierarchy process (AHP), a comprehensive assessment on different simulation techniques is done. A research direction on the artillery test of firing simulation is proposed, which can meet the requirements of the development of modern artillery.

Research on 5G End-to-End Simulation Test Technology for Electric Power Business in Smart Grid

2021 ◽  
pp. 1517-1524
Author(s):  
Jiakai Hao ◽  
Tianxiang Hai ◽  
Kang Yin ◽  
Ming Jin ◽  
Xiaochen Liu ◽  
...  
Keyword(s):  
Smart Grid ◽  
Electric Power ◽  
Simulation Test ◽  
Test Technology ◽  
End To End

Introductory Remarks

1980 ◽  
Vol 38 ◽  
pp. 598-599
Author(s):  
H. Mohri
Keyword(s):  
Muscle Contraction ◽  
Experimental Evidence ◽  
Sea Urchin ◽  
Constant Length ◽  
Thin Filaments ◽  
Bridge Formation ◽  
Thick Filaments ◽  
Sliding Mechanism ◽  
Radial Spokes ◽  
Cilia And Flagella

In 1959, Afzelius observed the presence of two rows of arms projecting from each outer doublet microtubule of the so-called 9 + 2 pattern of cilia and flagella, and suggested a possibility that the outer doublet microtubules slide with respect to each other with the aid of these arms during ciliary and flagellar movement. The identification of the arms as an ATPase, dynein, by Gibbons (1963)strengthened this hypothesis, since the ATPase-bearing heads of myosin molecules projecting from the thick filaments pull the thin filaments by cross-bridge formation during muscle contraction. The first experimental evidence for the sliding mechanism in cilia and flagella was obtained by examining the tip patterns of molluscan gill cilia by Satir (1965) who observed constant length of the microtubules during ciliary bending. Further evidence for the sliding-tubule mechanism was given by Summers and Gibbons (1971), using trypsin-treated axonemal fragments of sea urchin spermatozoa. Upon the addition of ATP, the outer doublets telescoped out from these fragments and the total length reached up to seven or more times that of the original fragment. Thus, the arms on a certain doublet microtubule can walk along the adjacent doublet when the doublet microtubules are disconnected by digestion of the interdoublet links which connect them with each other, or the radial spokes which connect them with the central pair-central sheath complex as illustrated in Fig. 1. On the basis of these pioneer works, the sliding-tubule mechanism has been established as one of the basic mechanisms for ciliary and flagellar movement.

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