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The finite difference method has been rarely used, the finite element method is the most widely used in the calculation of the seepage problem, compared with the finite element method the boundary element method is easy to deal with infinite or semi-infinite permeability media and the free surface, and only the study domain boundary is disassembled, the data amount of information a significant reduction in the boundary element method to dimensionality reduction, the three-dimensional problem can be reduced to two-dimensional problem, the two-dimensional problem is reduced to one-dimensional problem.

A reduction in the sand moisture content caused a large reduction in the dieldrin vapor densities.
Volatilization data were measured per 12h，then the sample was placed in another new plastic drum in order to avoid volatile components saturating the plastic drum

So phenomena often happen such as soldering, oxidation and even welding in the extrusion process, leading to the intensifying of wear and reduction of service life, because of the friction between the die and workpiece.
Therefore, the reduction in grain size of the Ti(C,N)-based cermet die material will certainly result in the enhancement of the flexural strength.
The data show a trend of increasing flexural strength with increasing nano-ZrO2, and a peak value of 967MPa is reached at a composition of 10wt% nano-ZrO2 which is about 65% higher than that of the cermet without nono-ZrO2 addition.

The damage to RC structures resulting from the corrosion of the reinforcements is exhibited in the form of steel cross-section reduction, loss of bond between the concrete and steel, cracking, and spalling of the concrete cover [1,2,3,4].
No Solved the creep strain of concrete by Eq.2 Determined the maximum stress of the steel Solved the residual steel area by Eq.8 Solved the compressive elastic modulus by Eq.4 i＝i＋1 Yes Fatigue life of the beam Solved strain and stress of concrete and steel Yes No Loading scheme (e.g. fatigue loads) Material behavior (e.g. strength) Structural configuration Input data Failure of concrete or steel Fig.2 Flowchart of estimation Fatigue Life of Corroded RC Beam Application to RC corroded beams This section presents an example describing the corrosion effect of a simply supported RC beam subject to fatigue loading.
The reduction in fatigue life due to this decrease of cross-section area is linear to that due to the loss of cross-section area of the reinforcing bars due to corrosion, where at a 60.8% mass loss of cross-section area was close to a 55.8% fatigue life loss.

In the current national situation of energy conservation and emission reduction, low-power hydraulic excavator has been made the pursuit of the goal by the industry.
While the balance hydraulic excavator reduces production costs, the simulation data obtained from the simulation of the balance hydraulic excavator by AMESim software attests its good energy-saving effects, which can also buffer the hydraulic impact and improve the life of the machine.
A medium-excavator machine weigh around 20t, and the frequent move of the boom of excavator moves will not only lead to a lot of energy waste in each working process, but also the rising temperature of the hydraulic oil, resulting in the reduction of oil viscosity and reducing the stability and life of hydraulic system.

Below you can see the main technical characteristics of the CRTM 350-8 mill: - Maximum shell outer diameter with plus tolerance, not more mm 360 - Shell thickness mm 5-40 - Shell length m 2.5-8 - Tolerance for shell outer diameter % ±1.0 - Tolerance for shell wall thickness, not more % ±12.5 - Shell camber mm/m 2 - Finished tube outer diameter mm 140-325 - Finished tube wall thickness mm 3-32 - Finished tube maximum length m 25 - Finished tube surface roughness Ra μm 0.8 - Tolerance for finished tube wall thickness at wall thickness reduction of at least 50%, not more % ±6.0 - Tolerance for finished tube outer diameter mm % ±0.7 ± 0.2-0.3 - Work stand stroke length, - Work cassette stroke length mm 1600-1700 1100 - Rolling die working zone, not more mm 950 - Stand maximum speed stroke/min 45 - Stand rolling speed for the 1-6-steel grades, not less stroke/min 30 - Feeding value (per half stroke) mm 2-25 - Rotate value (per half stroke) degree 23-35 - Maximum elongation ratio 6
Fig. 5 Functional configuration of ACS PLC performs data collection and processing from all units coming under control and monitoring, and forms requisite control actions to executing mechanism according to the program logic.
Calculation of Effective Reduction Ratio The moments of inertia values of the feed and turn mechanism are very high.

The displacement modes are obtained by operation modal analysis only using vibration response data, and input signals of white noises are assumed.
For the single Fig.5 Damage identification with noise for different damage levels of one element (1st Mode) damage(15 element,10% stiffness reductions) , different noises is consisted of 0%,1%,3%,5%,the results are displayed, as shown in Figure 5.
For the multiple damages (3 element,12 element 50% stiffness reductions) , different noises is consisted of 0%,1%,3%,5%, the results are displayed, as shown in Figure 6.

Transmittance spectra of the IHFO and IHFO:H films Based on the transmittance and reflectance data of the films, the optical band gap (Eg) is calculated by Tauc's equation (3) [9].
The ρ reduction and n increment of IHFO:H film further show that H can incorporate in high concentrations and behave as a shallow donor state.
The carrier transport is enhanced due to the reduction of the contribution of the grain-boundary scattering mechanism by H dopant [10].

This easily leads to a reduction of ionization ratio in semiconductors [5].
In addition, In atoms have an tendency to form complexes with themselves and/or interstitial Si atoms, resulting in a reduction of the number of electrically active atoms.
Data in In-doped Si is superimposed.

Considering that higher dimension, more calculation, and less speed, here we introduce an effective dimensionality reduction algorithm: SPCA.
The SPCA algorithm[11] is given as: ①collect of an dimensional data set,V={v1,v2,…,vm} ②X={ x1,x2,…,xm },which are obtained by subtracting which is the average value of form the center of gravity of set of the vectors, is used as input vectors. ③The column vector is defined as connection weights between the inputs and output.
Fig.3 is the examples of retrieval results of integrated features after dimensionality reduction.