Search results

If the aquifer is strengthened by grouting at the moment of t1, a large number of grout injected make the overlying strata upward movement or produce upward trend.
In fact, because grouting reinforcement, part of the aquifer to filling close-grained, the slope of the shaft lining additional force increasing over time changes (curve 4).Therefore, the grouting reinforcement has double effects, which are inhibition aquifer additional force (t moment for d) and slow release additional force (t moment for h).
The topsoil around shaft grouting treatment period, the monitoring system obtained large number of strain data, and effectively guided the grouting safety construction.

Mature commercial software contains its own database, which is from a large number of foreign basic experimental data.
The arrangement and serial number of residual stress measuring points are shown in Fig.2.
(b) Inner surface of 1A（500X） (d) Inner surface of 1B（500X） (e) Outer surface of 1C（500X） (f) Inner surface of 1C（500X） Fig.7 Inner and outer surface metallographic examination of base metal (a) Outer surface of 1A（500X） (c) Outer surface of 1B（500X） Through the metallographic microscope, the microstructure of inner and outer is in line with that of middle part on the whole, the phenomenon that H2S corrodes grain boundary does not appear, the micro-crack is not found, and corrosive pitting appears on some areas. 3.4.4 Microstructure of weld edge Microstructure of weld edge is shown in Fi.8. intergranular corrosion, transgranular corrosion and micro-crack are not found on the inner and outer surface of weld edge.

A 3D FEM model was implemented in ABAQUS Explicit 6.7 software to simulate the LSP events: starting from the description of laser shock wave propagation and the description of surface deformation induced by a single laser-shock event; describing in a second step the residual stress field induced by a large number of impact overlaps.
The step size of the PSD (position sensitive detector) was 0.047°, the angular analysis zone in 2θ is 18.8°; To minimize the texture and grain size effects, ψ oscillation has been carried out for each ψ angle with an amplitude of ± 6°, 17 ψ angles have been used for each stress analysis direction.
The step length was set to 0.05° and the step number varied as a function of diffraction peak width.

The θ(Al2Cu) phase distributes in the grain boundary and interdendritic region independently (as shown in Fig. 1), because α(Al) of eutectic reaction can grow attached to primary α(Al).
There are still a certain number of θ(Al2Cu) phases remained with the extension of time from 24 to 48h at 510℃ for alloy 3, which indicates that the Cu content is excess and it is difficult to dissolve the θ(Al2Cu) phase completely.
The number of θ(Al2Cu) phase decreases slightly with the increase of homogenization time from 24 to 48h, so it is recommended that the suitable homogenization treatment is 490℃/24 h + 510℃/48 h for Alloy 3.

With attapulgite clay addition, it clung to the hydrolyzate and served as core of flocculation, the flocs dispersed into water evenly; moreover, attapulgite clay as coagulant aid could augment granule number and increase its probability of collision, and came to better coagulation effects.
Table 1 Combination of PAC and attapulgite clay Test number 1 2 3 4 5 6 7 8 9 PAC dosage(mg/L) 15 15 15 20 20 20 25 25 25 Attapulgite clay dosage (mg/L) 150 200 250 150 200 250 150 200 250 Fig.2-a Combination mode on TOC removal Fig.2-b Combination mode on NH3-N removal 3.3 Influence of hydraulic conditions 3.3.1 Determination of PAC stirring time Took 6 part raw water sample of 1L volume, put 15mg PAC in, stirred rapidly at 300 r/min for 2, 4, 6, 8, 10, 12 min, respectively, then put 200 mg attapulgite clay in.
From the SEM pictures, it was observed that, flocs after single attapulgite clay was was in powder form and loose; and flocs after single PAC was fluffy, and plane schistose on the micro level; While flocs after PAC-attapulgite clay combination was compact and dense, smaller grain size, and spatial flocculent on the micro level.

Spatiotemporal Variability of Soil Moisture under Different Agroforestry Landscape in Jinghe River Wang Qirui1 Gao Jun2 (1 Henan Academy of Forestry,zhengzhou450008,china; 2.Research Institute of Forestry, CAF,Beijing10009 ,china) Keywords：Jinghe River；soil water；spatiotemporal variability Abstract：Measured the cover soil water content in soil layer 0~30cm of different agroforestry landscape types in Jinghe river with TDR, the landscape types including sloping cropland, apple orchard, apple-clover system, land under forest and grass changed from grain crop and black locust forest.
The natural vegetation is destroyed, cultivate breed index is high, land use types to slope farmland, orchard, Guo Mu, retreat return n cultivated land forest land and forest land compound mainly. 2 Materials and methods Selection includes different agricultural landscape slope from top to the bottom of the slope, agroforestry models were: Wheat ( start test have been harvested ), apple orchards, apple - alfalfa intercropping, retreat return n cultivated land forest and Robinia pseudoacacia Plantation ( see Figure 1, figure number length ).

This consideration is consistent with the well-known results of grain boundaries: The energy cusps only exist for the geometries where the dislocation model is applicable.
Thus, the number of the O-cell walls around each O-point is the same as the number of admissible Burgers vectors in lattice a.
Corresponding to a selected reference lattice a, the number of DgP-I’s is same as that of gP-a’s.
The up limit of the number candidates of singular interfaces is probably the same as the number of singular surfaces, which is often restricted by the number of gP-a’s.
Table 1 shows the number of POPs, the number of DgP-I(’s) normal to a POP, and the set(s) of dislocations in a POP for different O-elements.

,n, where n is the number of discrete values for the selected parameters.
These points correspond to the moments when the number of simultaneously meshed teeth pairs change.
The standard basic rack module and number of teeth were also predefined [5].
For this reason upper and lower limits are specified as a function of the number of teeth [10, 11].
Gliha, Behaviour of small cracks during their propagation from Vickers indentations in coarse-grain steel: An experimental investigation, International Journal of Fatigue, 33 (2011) 1505–1513.

There are a number of theoretical models describing reactive magnetron sputtering.
Compared to other methods, RSD makes it possible to control the growth of the coating, heating of the substrate, and also to obtain coatings with a higher density and with a smaller grain size.
The number of molecules of the compound increases, which leads to further poisoning of the target and a decrease in the sputtering rate.
There are a number of ways to ensure the operation of RSD installations in the transition region.
Acknowledgement This study was performed under the «ERA.Net RUS plus» program and funded by the RFBR, project number: 20-53-76012.

J.Ilic, Chizhen Si, J.L.Yang, and F.John used pre-freezing, they either imposed tensile stress on radial section and compressive stress on the grain direction to resist cell wall deformations or exchanged the drying medium-water with ethanol or methanol to reduce collapse[5-8].
The 40 pieces were divided in two groups containing quarter-sawed and plain-sawed lumber, where the the numbers for the quarter-sawed lumber were A-1, A-2…A-5; B-1, B-2…B-5; C-1, C-2…C-5; D-1, D-2…D-5, and the numbers for the plain-sawed lumber were a-1, a-2…a-5; b-1, b-2…b-5; c-1, c-2…c-5; d-1, d-2…d-5.