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The number of advantages topples over disadvantages: - Loam regulates the air humidity which means that loam easily and quickly absorbs humidity from its surroundings and subsequently gives the humidity back, slowly and as necessary.
This step requires sufficient number of containers and enough space for wetting the loam.
Large influence on plaster characteristics has the ratio of clay, dust and sand as well as grain size of sand, amount of water, type of clay, process of mixture and type of additives.

In the etched condition grain boundaries revealed as general microstructure of the alloys.
Sae, Metals and alloys in the unified numbering system, SAE HS-1086 FEB93 and ASTM DS-56 E. 6th ed.
[2] ASTM, Metals and alloys in the unified numbering system, 2012

This process occurs under controlled conditions so that the resultant grain structure will produce a greater tensile strength in the metal than in its original condition and gives some changes in particular properties of the sample. 1.1 Positron annihilation lifetime technique The samples were investigated using positron lifetime spectroscopy.
This means that the precipitations grow in size, while their number decreases. [3] Figure 6 Vickers hardness evolution of artificially aged at 192C Figure 7 Positron Lifetime evolution of artificially aged at 192C 3.3 Variation of “ρ” with time of artificial aging, artificial temperature 192C The formation of the precipitates can be controlled for many alloys by heating and holding the material at an elevated temperature for a period of time (artificial aging).
Higher aging temperatures result in a small increase in resistivity up to a peak associated with the formation of a large number of small scattering centers which shorten the mean free path of the conduction electrons.

Russian companies engaged in three-dimensional printing face a number of problems connected with consumables.
Thus, the analysis of the powders produced by EOS Company has shown that their average diameter amounts to about 25 mcm, and more than 50% of grains of powder are located in the dimensional range of 20 – 30 mcm.
Due to a great number of chemical elements and their compositions, the exact quantitative values of phases are almost impossible to evaluate, therefore, the data on the quantitative estimation of the phase composition are not given in this paper.

The ingots were coarse-grained, and it was possible to extract from them the single-crystals of about 0.4 mm in diameter.
Apparently, decrease of number of the 4е and 4f “dumbbell” sites is the mane reason for increase of the temperature of ferromagnetic ordering in the Tm2Fe19-xMnx and Tm2Fe16, Tm2Fe17, Tm2Fe18, Tm2Fe19 systems as Fe content decreases.
Strengthening of ferromagnetism in these systems with decrease of Fe content should be stipulated mainly by decrease of number of defected 4е “dumbbell” sites which are characterized by strong local negative Fe-Fe exchange interactions.

Tab. 1 Basic properties of coarse aggregate The Type of Coarse Aggregate Grain Diameter （mm） Apparent Density （kg/m3） Volume Density （kg/m3） Crush Index （%） Water Absorption （%） Nature 2.36-26.5 2767 1459 4.20 0.504 Recycled 2.36-31.5 2625 1313 16.02 3.160 Mix Proportions of Concrete.
Tab. 2 Mix Proportions of Concrete Specimen Number W/C Replacement of Recycled Coarse Aggregate（%） C （kg/m3） S （kg/m3） Coarse Aggregate W （kg/m3） Nature （kg/m3） Recycled（kg/m3） NC 0.47 0 457 658 1170 0 215 RC30 0.47 30 457 658 819 351 215 RC50 0.47 50 457 658 585 585 215 RC100 0.47 100 457 658 0 1170 215 Test Results and Analysis The test was divided into four experimental groups by recycled coarse aggregate of different rates and each group is six specimens.
The main reason why elastic modulus of RC decrease is due to a large number of mortar with a relatively low elastic modulus attached to recycled aggregate and large porosity of recycled aggregate will also reduce the elastic modulus of RC.

Introduction Nitrogen oxides (NOX) have been considered to be one of main air pollutants,which contribute to photochemical smog, acid rain, ozone depletion and the green house effects [1].The large number of diesel exhaust emissions is an important source of NOx in the atmosphere.Among various methodologies,SCR (Selective Catalytic Reduction) technology has been generally accepted to reduce NOx emissions in diesel exhaust.NOx formed in combustion processes is typically composed of >90% NO,so most research have been focused on the standard SCR to control nitrogen oxides by ammonia or hydrocarbons.In recent years,it has been reported that the fast SCR process has faster reaction rate and high NOx removal efficency than the standard SCR[2,3].It is important to develop the catalysts which are active and selective for the oxidation of NO to NO2, Therefore,in front of the SCR reaction unit,oxidation catalyst can be used to convert ca.50 % of NO to NO2,which can promote the fast SCR reaction
For NO oxidation, some research reported that several different Pt based catalysts are found to be the most active one[4,5,6].In this paper,Pt-based catalysts supported on various supports such as γ-Al2O3, TiO2, ZrO2, CeO2 and Ce0.4Zr0.6O2 have been examined ,the support effects and the optimal Pt loading are investigated. 1.Experimental 1.1 Catalyst preparation Pt-based catalysts were prepared by incipient wetness impregnation.Various metal oxides such as γ-Al2O3, TiO2, ZrO2, CeO2 and Ce0.4Zr0.6O2 were purchased and utilized as a support.The impregnated samples were dried overnight at 353K,and calcined at 473K for 1h and then calcined at 773K for 3h.The materials were then pressed into pieces, smashed and sieved to obtain grains of size 40 to 60 mesh. 1.2 Catalyst tests The activity of these catalysts was measured in a fixed bed quartz reactor (6 mm I.D.).The reaction temperature was detected by a thermocouple that inserted into the catalyst bed and controlled by a temperature controller.The
Figure.2 Effect of Pt loading on NO oxidation activity over the Pt/γ-Al2O3 catalysts Table.1 BET surface area of catalysts number sample BET m2·g-1 1 1 wt%Pt/TiO2 86.4 2 1 wt%Pt/ZrO2 5.4 3 1 wt%Pt/CeO2 76.2 4 1 wt%Pt/Ce0.4Zr0.6O2 48.1 5 0.25 wt%Pt/γ-Al2O3 213.4 6 0.5 wt%Pt/γ-Al2O3 212.6 7 1 wt%Pt/γ-Al2O3 185.7 8 1.25 wt%Pt/γ-Al2O3 198.4 9 1.5 wt%Pt/γ-Al2O3 209.6 Figure.3 X-ray diffraction patterns of the Pt/g-Al2O3 catalysts Conclusions In this paper,Pt-based catalysts supported on various supports such as γ-Al2O3, TiO2, ZrO2, CeO2 and Ce0.4Zr0.6O2 have been examined.

The company of Kebelco and Guhe Electic [1~2]did a lot of research about the die material and speed of rotary die; Rotarescu[3] gived a method of theoritical process analysis, which covered the process-zone geometry, lubrication condition at the contact area between spinning ring and balls,number of balls and entering angle.Zhang analyed the folding defect caused by the gap between copper tubes and plug[4].Jiang analyed the forming mechanism by using thin-wall tublar parts[5~6].
Table 1 Tooth profile parameters for the inner-grooved plug Specification Addendum angle (°) Outer diameter （mm） Tooth height (mm) Groove number Addendum fillet （mm） φ9.52×0.27 30 10.62 0.165 70 0.05 The specification of inner-grooved copper tube analyed in this paper has the features of so many grooves and narrow cogging.The folding defect appeared frequently during forming process.
Discussions Inner groove forming The actual and simulation inner groove can be seen in Fig. 4a, 4b respectively.Form the Fig.4a it can be seen that grains of copper tube were extruded and elongated when balls spun close to the coggings of grooved plug.

Adding ultrasonic aid to hot-dip aluminizing can make the crystal grain of plating coat smaller and make the structure of plating coat evener and purer [5].
Acknowledgments The work described in this paper is supported by National Natural Science Foundation (Project number: 51005140), Natural Science Foundation of Shandong Province (Project number: ZR2010EQ037) and Young Teacher Development Support Fund of Shandong University of Technology.

The bulk density and grain size of the sintered sample was 6.08 g/cm3 and approximately 0.2 µm (Fig 1), respectively.
When the monoclinic fraction increased by aging test, the peak position at maximum of the 460 cm -1 band shifted towards higher wave numbers (Figure 2 (c)).
Fig.2 Typical Raman spectra of Zirconia: a)Tetragonal Zirconia, b)Transformed Zirconia (tetragonal + monoclinic) c) Schematic image of peak shift at 460cm -1 as a function of phase transformation a) b) Intensity (a.u.) 800 600 400 200 Wave number (cm-1) c) Fig 1.