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Corrosion experiments on a number of rare earth di-silicates containing Y, Yb and Lu have been conducted in flowing air with 30 vol.% H2O at 1500°C.
In a number of studies Opila and co-workers (e.g. [2,3]) have shown that silica is volatile in wet atmospheres and that the evaporation kinetics are often too fast to allow long-time use.
Small amounts of silica- rich grain boundary phase or artefacts from the manufacturing process might also contribute to raised initial loss rates [15].

Recently the tendency of the market is to make leathers more and more supple, with a fine and homogeneous grain which allows a soft finishing, such as aniline finishing for luxurious leather [3， 4].
It is clearly indicated that the copolymerization under the condition prescribed give rise to three species of polymers whose peak molecular weight (Mp) range from 1689 to 3680 which corresponds to number-average molecular weight (Mn) 1583~3525 as well as weight-average molecular weight (Mw) 1661~3701 (Table 1).
Conclusion A copolymer with a number-average molecular weight of 1583~3525 can be obtained by polymerizing maleinuric acid with acrylic acid in the presence of ammonium persulfate and sodium bisulfite.

The convenience of the FSW as a joining technique has been demonstrated in a number of studies, especially for commercially pure aluminium [2-3].
This technique has been successfully applied in the production of fine grained structure and surface composite [6].
Nevertheless, FSW is associated with a number of unique defects which are undesirable in joints as they are known to adversely affect the joint integrity or the processed zone.

The number of SILAR cycles is 40.
The preferential orientation of the γ-CuI grains is observed along the (111) axis aligning with the growth direction.
The presence of a number of peaks in XRD pattern is the indication of polycrystalline nature of the CuI.

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

Five experiments were designed by randomly selecting training and test digits from MNIST database respectively to quantify the impact on the recognition accuracy of the different number of training samples.
Comparison for correct recognition rates of GMDM and TD Train/Test number 50/200 100/200 200/200 300/200 400/200 CRR DMGM 91.2% 93.6% 95.4% 96.2% 96.3% TD 89.7% 92.0% 93.9% 95.0% 95.2% The experiments in Tab.1 shows that ratios of training and test samples influences the correct recognition rates both for DMGM and TD method, generally, more training samples, higher CRR, but it increased with training test samples raising gradually became weak while the training samples is big enough.
Lee: "Diffusion maps and coarse-graining: A unified framework for dimensionality reduction, graph partitioning, and data set parameterization," IEEE transactions on pattern analysis and machine intelligence, Vol.28 (2006), p.1393-1403

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.

The iteration number n is a parameter governs particles shape uniformity; particles can be made more uniform by increasing iteration number, here use default value n = 5.
Étude numérique des matériaux granulaires à grains polyédriques: rhéologie quasi-statique, dynamique vibratoire, application au procédé de bourrage du ballast[D]. 2007 [7]Normes françaises. 1996.

Introduction A large number of nodes and critical parts of modern mechanisms operate under high wear and corrosion cyclic loading.
Grain pearlite and ferrite are randomly arranged relative to each other [4].
Scratches become less deep, the number of dark areas is reduced and the wear area is reduced.