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In Chinese rural area, population cardinal number is large, the cost of construction is low, and an unprecedented change is taking place in energy consumption of rural housing.
The biomass materials which can be utilized directly for building insulation are abundant, such as straw and other grain planting by-products, carvings, net shell and other processing by-product, sawdust, bark, leaves, grass and other forestry processing by-products.

C) Environmental benefits: to protect and improve people's living environment and air quality, China has canceled a number of small boilers.
The borehole data shows that: the layers 200m below the surface in the new campus of Taiyuan university is mainly the quaternary layers:a)Lower pleistocene(Q1): yellow, celadon, brown sandy clay, coarse, medium and fine-grained sand interbedded, lacustrine sediments; b)Middle pleistocene(Q2): yellow, red sandy clay, gravel and sand interbedded; c)Upper pleistocene(Q3): isabelline sandy clay, thin sand, ginger rock.layer; 4)Holocene(Q4): modern alluvial layer, mostly sand, sand and gravel deposits.

In this point the grains of white cast iron grow to a big size because of the high temperature.
Firstly, a large number of carbide blocks are dissolved at the high austenitizing temperature, making the impact toughness of cast iron increased.

The shape of 2# test hole is rectangle, section size is 5m 5 m, its about 12m from the hole to auxiliary hole, the thickness of overlying strata is about 1850m, litho logy is middle and coarse grain marble, Epitaxial compressive strength is 80~110Mpa, elastic modulus is 30~50Gpa. 1.3 Monitoring device Use acoustic emission monitoring system (produces in American PAC Company) which includes: sensors, the preamplifier, acoustic emission acquisition card, host system and processing software to acquisition the acoustic emission signal of this experiment, the acquisition system and working principle of this system.
From the figure and the table 1, We can see: the whole monitoring on November 14 during7:00 to 9:00 in the morning the acoustic emission events is numerous and have a wave, but from 9:00am to 13pm acoustic emission events is reduce and stability, acoustic emission events increase again and have no fluctuations after 13pm,all in all the number of acoustic emission events is stability in the whole process of monitoring; Acoustic emission events and its energy parameters decline because the produce of fissure so the produce of fissure is the result of acoustic emission events frequent activity, and its also a process of energy release; Acoustic emission events is reduce its energy parameters is decline and both of them are keep relatively stable after the produce of fissure ,so this phase can be considered as a stage of fissure development stability.

Small grains start to form on the 10 min annealed thin film and become larger for the 20 minutes annealed film.
The number of the spot is observed to increase when the annealing time is increased.

The average thickness of BaTiO3 layers is 1.7 mm and the total number of layers is 120.
Jiang, Grain size effect on the electrocaloric effect of dense BaTiO3 nanoceramics, J.

Therefore, an increasing number of silicon- containing materials are being studied for applications in biomedical materials and devices.
Experimental procedure Commercially available silicon powders having a grain size of 10-50 µm and purity of 99.0% were used as the feedstock.

As a result of the research made on a large number of steels and alloys, the authors mentioned came to the conclusion that immediately after casting, liquid metals constituted essentially a non-homogeneous unbalanced system.
The melt casting at temperatures lower than 1550 оС ( the low-temperature melt state) contributes to the formation of the ribbon’s rough free-side surface; it looks like being sprinkled with crushed grains (Fig. 3, a).

This technique has a better advantage over normal potentiostatic electrodeposition in terms of its ability to produce samples with a better morphology, crack free, uniform and finely grain size as well as better porosity and well adherent [6].
As the crystalline size becomes smaller, the number of sample per unit area is higher and therefore under illumination, more electron hole pairs can be produced per unit area for the redox reaction at electrode electrolyte interface [12].

To meet this requirement, (P) should be used in particle size, allowing optimum choice depending on the size and volume of the treated defect. 0,3-0,6 0,6-1 1-2 2-3 3-6 mm Fig. 3 The grain size of the augmentation material PORESORB®-TCP in the range of 0.3-6 mm Osteogenic activity of the PORESORB®-TCP in vitro The results of the in vitro experiments confirmed the osseoinductive properties of TCP (P) providing that there are three cooperating components of the assay system.
Two independent reviewers assessed each radiograph, by means of the level of resorption of the filling material and trabeculation of the defect, by absolute numbers in cm3 and by the relative values in percentage terms (including demission of radiolucency around the filling material, growth of trabeculae and their joining with the filling material used).