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Since the node number of 3D mesh is still larger, large scales equations solving method-element by element method and others efficient measures were adopted.
To reduce the unnecessary number of elements and to guarantee the calculation is performable, element type transition in the space must be carried out.
The total elements amount of DongQing CFRD is 19,231 and the total nodes number is 20,152.
Constitutive models 3.1 coarse–grained material constitutive model Nonlinear elastic Duncan-Chang E-B model [3] which widely used in China is adopted to simulate the behavior of Rockfill materials.

The process from Ca(H2PO4)2 to CPP, as a polycondensation reaction, has been researched to evaluate the number average degree of polymerization.
The number average degree of polymerization can be calculated by the water loss amount during the polymerization reaction.
Fig.1 SEM of the porous CPP scaffolds Fig.2 Connection of sintered grains The process from Ca(H2PO4)2 to CPP, as a polycondensation reaction, has been researched to evaluate the degree of polymerization.
Step A means the crystalline hydrate calcium dihydrogen phosphate losses its crystalline water; step B means the calcium dihydrogen phosphate dehydrates inside the molecule, then the product is A: B C C: B: 60 80 100 120 0 20 40 60 80 100 120 140 160 180 170 144 80 Strength (MPa) Average number polymerization degree calcium pyrophosphate(CaH2P2O7); step C means the calcium pyrophosphate dehydrates outside the molecule, then the polycondensation reaction happens and the polymer chain of CPP is generated.

Currently, many coffees produce a large number of spent coffee grounds.
Research by Lee et al. in 2019 investigated the function of hard carbon grain-induced coffee drink waste for sodium-ion batteries [14].
After finishing the heated process, then sieved using a size of 40 mesh to get uniform grain results.
Table. 1: Chemical Compounds Contained in Sample 450℃, with a NaOH solution of 70% No Element Number Element Symbol Element Name Atomic Conc.
This was related to the number of peaks formed in the area 1026 cm-1 to 1700 cm-1, namely peaks of 1022 cm-1, 1374 cm-1, and 1639. cm-1.

However, the particle sizes increased at 200 kN due to agglomerated grain growth.
Even though a large number of papers are already published about this material, much less attention has been given towards the application of pressing forces.

Tool wear and failure monitoring has raised quite a lot of interests among researchers and has consequently been studied in a number of research projects by a number of research organisations.
There are diamond grains on the end face of the tool and at the edge.
The correlation between signal amplitude and drilling holes number (a) Power spectra of force signal (b) Power spectra of vibration signal (c) The ratio of two peaks in vibration spectra (d) Power spectra of acoustic emission Fig.5.
Fig.4 shows the correlation between signal amplitude and drilling holes number.

These facts allow suppose that with a greater flow decreases the number of walls.
The aim of this study was to evaluate the number of CNTs walls obtained by CVD due to temperature and carrier gas flow.
It is suggested the use of this equation to obtain the average number of walls in CNTs.
Lc and numbers of walls in CNTs.
The influence of temperature on the number of walls of CNTs is not apparent at 800 or 850 °C.

Combinations of ANN network in hybrid model having different number of hidden neurons and learning rate have been formulated, trained and validated.
Nowadays mathematical modeling is being used for finding out time required for recrystallization process of rolled products like steel sheets and also the grain structure that may be formed as per requirement [2].
On a further note genetic algorithm can also be applied for determining the optimum values for the input parameters that result in as per requirement internal grain structure [5].

There are a number of methods for the measurement of the oxide-film thickness and, among these methods, are optical interferometry [1] and electrochemical impedance spectroscopy (EIS) [2].
It is clear that the average grain size of the (Al) phase is larger in the annealed sample than in the as-received condition.
The average grain size of the (Al) phase is 224µm, as compared to the 100µm of as-received samples.
The average grain size has been determined by using the line-intersection method, according to the standards of the American Society of Metals [5].
n is the electronic charge number.

The microstructures of all the three alloys are very similar, which are all recrystallized equiaxed structures, and the average grain diameters are comparable.
By conventional annealing treatment, the superfluous solute atoms will precipitate out in grains, forming precipitates.
When a strong enough pile-up stress is built up, the precipitates will be overcome and a large number of dislocations could move collectively through this passage.
With higher Cu content, the alloy has both higher dislocation densities and more number of precipitate particles available for aging of the dislocations.
The average grain diameters of the Al-Mg-Cu alloys after final annealing at 450°C for 1h are comparable.

Each slot can contain any limited number of side.
Each side not only can contain any number of values, but also can be other side framework (known as the sub-frame).
For NC camshaft grinding process of the machining features can be categorized as follows: Problem: cam type, material type, material grade, material hardness, maximum error of lift range, maximum adjacent error, waviness, surface roughness, degree of burn, total grinding allowance, number of cam, base diameter , maximum lift range and camshaft length; Solution: camshaft grinder model, wheel type, grain size, linear velocity of wheel, rotational velocity in the coarse grinding stage, feed rate in the coarse grinding stage, rotational velocity in the precision grinding stage, precision grinding allowances, feed rate in the precision grinding stage, rotational velocity in the finish grinding stage, finish grinding allowances, feed rate in the finish grinding stage, turns of no-spark grinding, dressing mode, linear velocity of dressing, depth of dressing, translational speed of dressing, number of dressing, coolant brand, fluid pressure of coolant and liquid flow of coolant
System testing and application The new case is given as table 1.When setting the similarity threshold value for 0.82, the system can retrieve two cases whose serial number are X24 and X67.
Table 1 the input information of the new case Features of new case Value Features of new case Value Camshaft type general camshaft Waviness No Material type alloy steel Degree of burn Not burn Material brand 20CrMnTi Total grinding allowance (mm) 3 Hardness HRC40～45 Number of cam 6 Maximum error of lift range (mm) 0.033 Base diameter (mm) 14.5 Maximum adjacent error (mm) 0.006 Maximum lift range (mm) 5.345 Surface roughness Ra(µm) 0.32 Camshaft length (mm) 418 Table 2 the new case after matched and modified Solution features Value Solution features Value wheel type CBN Finish grinding allowances(mm) 0.03 Grain size 80 Turns of no-spark grinding 4 Linear velocity of wheel(m·s-1) 80 Dressing mode Down dressing Rotational velocity in the coarse grinding stage(rpm) 75 Linear velocity of dressing(m·s -1) 20 Feed rate in the coarse grinding stage(mm·s -1) 0.06 Depth of dressing(mm) 0.001 Rotational velocity in the precision grinding stage(