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But in special places, such as blast furnace gas filtration, high temperature flue gas dust removal, pulverized coal, grain and other bums sex dust catcher sites prone to filter bag burned and fire accident [3], filter material flame retardant performance is needed to consider in these applications.
temperature (℃) 20.5 20.5 20.5 20.5 20.5 20.5 20.5 GB6529-2008 Humidifying relative humidity (%) 62 62 62 62 62 62 62 GB6529-2008 Experime-nt condition Experiment temperature (℃) 20 20 20 20 20 20 20 GB/T17951- 2006 Relative humidity(%) 58 58 58 58 58 58 58 Air type propa-ne propane propane propane propane propane propane B1 B2 Combustion performance experiment Experimental data Warp Aferflame time(s) 77.74 4.81 0.8 0.85 1.1 0.71 0.61 ≤5 ≤15 Afterglow time(s) 0.99 0.48 0.33 0.45 0.37 0.46 0.31 ≤5 ≤10 Damaged length (mm) 171.7 44.6 15.4 19 36.6 33 11.4 ≤150 ≤200 weft Afterglow time(s) 69.34 6.57 0.78 0.84 1.63 0.67 0.62 ≤5 ≤15 Afterglow time(s) 0.91 0.54 0.36 0.44 0.33 0.34 0.31 ≤5 ≤10 Damaged length(mm) 178.7 41.2 14.6 19.2 40.8 32 10 ≤150 ≤200 Combustion characeristics Carbo- nization, shrink, liquati-on Carboni-zation, shrink Carboni- zation, shrink Carboni-zation, shrink Carboniza- tion, shrink Carbon-ization, shrink shrink Wether have drop things Yes no no no no no no Number
of burn sample 4 0 0 0 0 0 0 oxygen index method Experimental data Warp limit oxygen index (%) 21 34.9 50.5 46.3 43.6 43.4 95.2 Weft limit oxygen index (%) 21.6 35.2 50.8 46.5 44.2 43 94.6 Amount of burn through number 6 2 2 3 2 4 2 Combustion characeristics Carbo- nization, shrink, liquati-on Carboni-zation, shrink Carboni- zation, shrink Carboni-zation, shrink Carboniza- tion, shrink Carbon-ization, shrink shrink The ruslt of the vertical flame method (1) Afterflame time Under the test conditions, the afterflame time is that the ignition source removed, materials continue to burn with flame.

Introduction Among ultra-high temperature ceramics(UHTCs), ZrB2 and ZrB2-based composites are of particular interest because of the unique property combination of high refractoriness, high-electrical and high-thermal conductivity, chemical inertness against molten metal or non-basic slag and good thermal shock resistance[1, 2], which make it attractive candidates for high-temperature applications where corrosion-wear-oxidation resistance is demanded, because of its higher cost of production, has found a limited number of applications.
Refractory oxides, such as alumina, zirconia, yttria and mullite, show the best resistance in those aerobic environments, and a number of these have been evaluated as coating for other ceramics[8].
The uncoated ZrB2 samples surface micrograph was showed in Fig.4, it can be seen that the ZrB2 grain boundary became smooth and there was about 5-6% open porosity on the surface, meeting with the as received composites having 95% relative density.

- An established phase, reached by stability of the operating conditions at the interface (number of wear particles torn off becomes constant).
The results obtained suggest a certain number of deductions, described below.
[4] Jarosław CHMIEL, Jarosław ŚMIECHOWSKI, Marcin JASIŃSKI and Małgorzata SZYSZKO, Selected Issues of Corrosive - Mechanical Wearin the Port Grain Elevator, Solid State Phenomena, Vol. 252, pp 41-50

Then, the fine-grain of sisal fiber carbon was prepared by the ball-milling dispersion method under 400 rpm for 12 h.
In Fig. 1(f), the SFC shows a multiple-peaked pore size distribution centered on 0.50, 0.59, 0.80, 1.17 and 1.48 nm, which indicates that the SFC has a large number of micropores, while the Horvath–Kawazoe pore size distribution curve of the CMSFC indicates a few mesoporous characteristics.
Fig. 3(a) shows that the SFC possesses a typical honeycomb structure with a large number of microscale macropores.

The ways of doping supervalent cations, synthesis of nanocrystalline grains and electronic conductive carbon coating have been regarded as effective methods to enhance its electronic conductivity and Li-ion diffusivity rate[5].
The diffusion coefficient of lithium ions (D ) can be calculated from the slop in the low frequency region according to the following equation[11]: D=R2T22A2n4F4C2σ2 (1) C is the concentration of lithium ions in the materials, R is the gas constant, T is the absolute temperature, F is the Faraday constant, A refers to the electrochemically active surface area, n stands for the number of electrons per molecule during redox process, σ is the Warburg factor which can be obtained by the following equation[11]: Zˊ= Rs+ Rct+σω1/2
Table 1 Test results of soft-packed batteries Simple internal impedance mΩ Capacity Ah Formation efficiency % capacity of the LiFePO4/C composite at 0.3C(mAh/g) Constant current ratio % a 4.40 5.543 88.3% 137.1 97.5 b 4.49 5.472 88.0% 134.5 97.1 c 4.33 5.513 87.9% 135.0 97.4 average 4.41 5.509 88.1% 135.5 97.3 Fig. 6 The V-SOC curves of LiFePO4/C soft-packed cells Table 2 Capacity and capacity retention of LiFePO4/C soft-packed cells Simple Capacity（Ah) Capacity retention (%) 0.3C 0.5C 1C 2C 3C 0.3C 0.5C 1C 2C 3C a 5.543 5.482 5.332 5.094 4.978 100% 98.9% 96.2% 91.9% 89.8% b 5.472 5.412 5.278 5.063 4.948 100% 98.9% 96.5% 92.5% 90.4% c 5.513 5.460 5.334 5.120 5.008 100% 99.0% 96.8% 92.9% 90.8% Average 5.509 5.451 5.315 5.092 4.978 100% 98.9% 96.5% 92.4% 90.3% 3.1 3.12 3.14 3.16 3.18 3.2 0 10 20 30 40 50 60 70 80 90 10 0 Cycle number voltage(V) b a Fig. 7 Cycle curves(a) and average voltage change curve

Meanwhile, rice bran (RB), a brown layer presented between rice and outer husk of paddy [1], is one of the most important co-products in the rice milling process [2], possessing approximately 8-11% weight of the total rice grain [3].It contains about 15% protein and 18%-22% lipids.
(1) Where h is the number of peptide bonds broken, htot is the total number of bonds per unit weight.

Compared to traditional insulating materials like organic foams and mineral wool, foam glass has a number of benefits, including superior mechanical qualities, large surface area and permeability, great chemical and thermal stability, resistance to water and steam, and tolerance to freeze-thaw cycles. [22] accounted that the applications for slags are more limited and new reuse applications for this material need to be developed Two main factors viz; the type of foaming agents and foaming temperature can determine the thermal insulation properties and structure of porous silicate materials; this is explained according to [23] that the main viscosity of the silicate mass exerts more influence on the foaming process, foaming agents are chosen based on their respective reactions to glass.
Mugoni et.at., [39] has used the heating microscope to investigate how the glass behaves during the thermal process, enabling the estimation of the characteristic temperatures at which a specific viscosity is associated with sintering (the grains begin to sinter), softening (the sample is plastic), sphere (the sample still has a surface tension that opposes the force of gravity), and hemisphere (the glassy material collapses).
The frequency of the particle size range is useful for evaluating the number of materials between two values and the percentage of particles above or below a defined value from the cumulative curve (Jakob et al. [40] posited that it is unavoidable that the particle size of materials changes after ball milling the mixtures to ensure homogeneity, hence obscuring a clear relationship between particle size and foam density.
Grain Size Distribution of Slags and Bottle glass Previous work of Jakob König et. al., [56] has reported that the granulometry of the materials used to produce glass foams plays a significant part in its properties, while [55] opined that the homogeneous particle size distribution of the raw components enhances the homogenous microstructure of the foam glasses.
Our essential task in the future is to reduce the impact of the human factor when preparing samples as much as possible and to perform our tests on a more significant number of samples.

As the cutting tool, a commercially available versatile micro-grain cemented carbide (HTi10) insert (TPGX0800204 by Mitsubishi Materials Co., Ltd.) was employed and screwed on the tip of the ultrasonic cutting unit (see Fig. 2(b)), of which the rake angle α, the clearance angle γ, the nose radius R, the side cutting-edge angle Cs and the end cutting-edge Ce are 0°, 11°, 0.4mm, 23° and 7°, respectively.
It is evident from Figs. 9(a) and (b) that the calculated average roughness Ra of the workpiece with UV is almost same with that without UV, but interesting to note that a larger number of low frequency waviness components can be observed on the work-surface without UV compared to that with UV.
(4) Experiment No.2 revealed that under heavy conditions, the work-surface roughness Ra with UV is almost same with that without UV, but a larger number of low frequency waviness components is observed on the work-surface without UV compared to that with UV.

The riverside of Songhua River and Liao River are China's important industrial base (machinery, petroleum, chemical engineering, pharmaceutical, etc.) and major grain producing areas.
In addition, a large number of toxic, durable, highly biological enriched compounds (including some endocrine disruptors, nanoparticle pollutant and algae toxin) were discharged into natural water body.
Watershed contains a number of different ecological unit, from the water quality to architectural feature of water ecosystem, different parts of the water have obvious differences, at the same time, the quality of different ecological units are affected by water quality, water quantity and water ecology.

This is because of its complex nature, as the shear resistance is influenced by a number of variable factors.
This model has been further developed by a number of researchers.
Additionally, the surface was treated with the fine-grained sandpaper.