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Table 1 Chemical compositon of choosen materials Material C Mn Si P S Ni Cr Mo V Ti S355 NL +N 0.172 1.38 0.36 0.016 0.002 0.08 0.021 0.004 0.003 0.024 34CrMo4 0.34 0.81 0.26 0.009 0.005 - 1.01 0.21 - 316 LVM 0.03 2.0 1.0 0.025 0.01 13-15.5 17-19 2.5-3.2 - Table 2 Basic mechanical properties of choosen materials Material Rm [MPa] Rp02 [MPa] A5[%] KCV [J/cm^2] S355 NL +N 566 405 36 131 34CrMo4 1107 1053 12 93 316 LVM 950 770 13 88 From the metallographic point of view, first material is fine-grained ferritic - pearlitic structure.
Numbers of indents is small but sufficient for description of standard hardness of unknown specimens[5].
According to EN standard is writen 100 HV10, where 100 is hardness number, HV is method and is a applied force in kgf.
That is because hardness number is mainly force against to area (N/mm2 = [MPa]).[2, 4, 10] Results Results bellow are mentioned in table 3, were are writen mean, and other statistical values of measuremnents.

In addition, rare earth (RE) addition can significantly improve the properties of magnesium alloy, mainly due to its purification, grain refinement, and alloying effects.
Single hidden layer BP network was employed in this work, and the hidden neuron number was 12.
In PSO stage, the population size was 30, the maximum number of evolution was 100.
N is the total number of data in the model.

Interfaces between the layers as well as the friction coefficients mi are numbered beginning at the top of the strip.
Due to the possibility of a high number of individual layers, inhomogeneous deformation states can be approximated using visioplasticity methods.
Figure 3: Shift of the initial boundary of the roll gap during the iterative solution procedure due to continuity requirements Figure 4: Comparison between the track lines of FE knots and LaySiMS layer computation (RD- rolling direction) Figure 5: Examples of strain state, velocity distribution and microstructure in vertical direction (strip thickness) optained from symmetric LaySiMS calculations for C-Mn-steel using 11 layers ( rolling speed 11.6 m/min, coefficient of sticking friction 0.8, strain 54%, initial thickness 80mm, diameter of working roll 700mm ) Figure 6: Temperature and mean grain size distribution of S355 along the metallurgical length in the layers rolled in a roughing section with different initial temperature distributions: left - inhomogeneous, right - homogeneous; for computation an symmetric 11 layer configuration were used Conclusions The analysis of hot rolling processes requires a large modelling depth at a minimal computational time.
In dependence to the number of layers, an inhomogeneous strain state in the roll gap can be approximated with a sufficient accuracy.

The management of emergency supplies by types is the management for storage location, storage number, disposable number and present or historical usage; emergency resource information inquiries is a powerful search engine, according to the input keyword, we can get the information we want; information maintenance refers to maintain the expenditures, usage and addition situations timely to ensure the information to be accurate and effective.
In the plan, the Emergency Command should allocate a director, a commander, a number of participants and the time to conduct.
Emergency dispatch service is a coarse-grained service, mainly for handling scheduling when the accident occurred.

This is due to the fact that, in these techniques, molecular precursors react directly onto the substrate through a number of coupled processes towards the desired film.
The technique is optimized in terms of a number of parameters that include deposition temperature ant time, solution flowrate and precursor concentrations and substrate distance from the nozzle.
This is expected as precipitating particles formed after thermolysis within the droplet are quite reactive leading to microporous particulates of small grain size, and thus, requiring low sintering temperatures for further densification.
Acknowledgements Financial support from the Special Research Account Committee of the University of Western Macedonia (Grant number: 70305) is acknowledged.

The oxidation experiments on the FeCrAl alloys were carried out at 1373 and in some cases at 1273 K, in air, in both isothermal and thermal cycling conditions, the weight changes being measured as a function of the exposure period or a number of 1h-cycles, respectively.
Subsequent rapid increase of the mass after the initial few cycles corresponds to the intensive material destruction. 0 5 10 15 -20 -10 0 10 20 30 40 50 WEIGHT CHANGE [mg / cm**2] NUMBER OF 1h-CYCLES Fe10Cr Fe10Cr+imp.
The following can be inferred from these plots : (i) the Fe-10Cr alloy exhibited catastrophic oxidation, independently of the presence of the implanted Al, which did not considerably affect the reaction course; (ii) the oxidation rates 0 10 20 30 40 50 -1,5 -1,0 -0,5 0,0 0,5 1,0 1,5 WEIGHT CHANGE [mg / cm**2] NUMBER OF 1h-CYCLES Fe20Cr-2Al Fe20Cr-2Al+imp.
However, the extent of nodules was much smaller on the Fe-10Cr-2Al alloy than on the Fe-20Cr one; (v) the surface of the oxidised non-implanted Fe-10Cr-2Al alloy was reddish, while it was white in the prevailing part on Al-implanted material; (vi) large areas of the spallation were found on the Fe-20Cr-2Al alloy and even larger on the Al-implanted material; (vii) in the latter case, the exposed substrate degraded in terms of fairly deep cracks which resulted in its 'fine-grained' appearance.

For the elements dissolved in the hydrosphere, the exergy of the elements is expressed as: 2 0 0 0 0 1 2.303 ( ) ln( ) 2 qel fi i qH y qy n i n in i y Ex j G jz Ex j b Ex RT jz pH jRT m γ = − ∆ + − − − × ∑ (6) Where j is the number of reference ions derived from one molecule of the element under consideration, z is the charge of the reference ion present in seawater, by is the number of molecules of the additional element y present in a molecule of the reference species in seawater, min is the molality under standard condition, γi is the activity coefficient.
The chemical composition of pure mineral is unchangeable, so the calculation of the pure minerals' exergy can use the relation between compounds and elements, it is expressed as: [12] 0 0 , ch el ch el f el Ex n e G = + ∆∑ (9) Where Exch is the exergy of compounds, nel is the number of moles, ech is the exergy of elements, and ∆G is the standard mole Gibbs's free energy of formation of substance.
The thermodynamics states of minerals can be divided into two categories [14]: Regarding the natural minerals as ideal solid solution, the corresponding formula is: , 0 ln ch i ch i i i Ex n e RT n a = +∑ ∑ (10) Regarding the natural minerals as a mixture of separate grains, the corresponding formula is: , ch i ch i Ex n e= ∑ (11) Where ech,i is the exergy of compounds, ni is mole fractions of compounds, ai is the activity of substances, and for ideal solid solution ai is equal to ni.
As shown in table 2, to the non-aluminum-containing minerals, there is no distinct difference between the results based on Szargut's and Rivero's data of elements' exergy respectively, but to the aluminum-containing minerals especially for the minerals which contain a large number of aluminum, it will cause a significant difference on the results when using different models.
Considering both ideal solid solution model and separate grains model are the limit states of the pure minerals existing in natural minerals, the real state of pure minerals should between them, so select the average of the two outcomes as the final result will be more accurate.

In this study, based on a large number of experimental explorations, we analyzed the impact of film-forming factors to the film properties, and filtered out the optimal experimental conditions which could make the self-assembled monolayer to achieve the most good overall performance.We attempted to study the metal surface chemical adsorption film technology in the acidic environment by using the methyl trimethoxysilane (silane coupling agent), polyethylene glycol(400), glycerol, triethanolamine and chromium alum as the main raw material.
Through a large number of preliminary experiments we initially identified the film process conditions: polyethylene glycol (400) was 20mL/L, silane coupling agent was 15mL/L, triethanolamine was 70mL/L, glycerol was 20mL/L, chrome alum was 1g/L, pH was 2, and coating time was 8min.
Fig.1 showed that the phosphate film by this phosphating process formation was stacked close needle-like crystals, and the grain was small, uniform, dense.
Summary Through a large number of experiments we had come to a technology of metal surface chemical adsorption film: polyethylene glycol (400) was 20mL/L, silane coupling agent was 15mL/L, triethanolamine was 70mL/L, glycerol was 20mL/L, chromium alum was 1g/L, pH value was 2, coating time was 8min.

Milling is employed to obtain a fine-grained powder with controlled reactivity and rheological properties in the cement paste.
The powder processed with increasing number of milling steps showed a reduction of the crystalline content from 79 ± 1 wt-% (once 15 minutes milling) to 29 ± 1 wt-% (15 times 15 minutes milling, Fig. 1).
Increasing the number of milling steps not only increased the amorphous content prior to calcination, but also accelerated the transformation of α-TCP to β-TCP.
Datasets of samples milled 2, 4, and 10 times showed characteristics in between the two extreme samples, i.e. faster decrease of α-TCP and increase of β-TCP contents, as well as an increasing amount of HA were observed for higher numbers of milling steps.

Introduction A sensor node might vary in size from that of a shoebox down to the size of a grain of dust, although functioning “motes” of genuine microscopic dimensions have yet to be created.
There are a number of standardization bodies in the field of WSN.
There are an increasing number of small companies producing WSN hardware and the commercial situation can be compared to home computing in the 1970s.
WSN are meant to be deployed in large numbers in various environments, including remote and hostile regions, where ad hoc communications are a key component.