By using AAS and XRF, the contents of Cr, Pb, Mn, As, Se, Hg, Cd, Zn in raw coal, bottom ash and fly ashes are measured quantitatively in a 220 t/h pulverized coal boiler. Factors affecting the distribution of trace elements are investigated, including fly ash diameter, furnace temperature, oxygen content and trace elements' characters. The coefficient of Meij is also improved to more directly show element enrichment in combustion products. Elements may be classified into three groups according to volatility features of trace elements.

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This invention relates to an apparatus for testing permeability coefficient of low-permeability rock medium, which comprises a sensor, a temperature control box and a flowmeter both connected to the triaxial chamber with a gas injection port and a gas outlet on ends, a rigid press axle pressure and rigid press confining pressure system. Wherein, arranging an axial/lateral pad in the said chamber, and setting a horizontal strain gage chain and clamp.

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The effect of the equivalent heattransfer coefficient between the bar and iron core on the distribution of temperature is also analyzed during starting.

分析了導(dǎo)條與鐵心之間的等效換熱系數(shù)的變化對(duì)電機(jī)起動(dòng)溫度場(chǎng)的影響。

The prototype system considers the geometry of the building, the position of the source and receiver, and the acoustic properties of the sound transmission (the sound absorption coefficient of the walls and the temperature of the environment). The system then builds the beam tree by beam tracing, and finds all possible paths of the transmission and reflection. All sound paths are then traced to compute the sound obtained by the receiver.

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Then it is corrected that the brightness temperature with the radiation coefficient ελ of gray body.

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Based on this, there are several factors affecting the length of the flame and the NOx formation in the HTLOC process in chamber, these being excess air coefficient, preheating temperature of the gas and the air and the

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The stable temperature dependence of resonance frequency, electromechanical coupling coefficient K_(31) and piezoelectric constant d_(31) were measured.

實(shí)驗(yàn)結(jié)果表明，適量的摻雜不僅能優(yōu)化體系的壓電性能国产免费午夜福利短视频在线观看，而且改善了體系的溫度穩(wěn)定性黃色网站中文字幕。

Especially the DO30/S685 systemshows no nonlinear optical coefficient decay after 1000 hours inroom temperature.

特別分散橙DO30聚胺脂S685交聯(lián)體系極化膜，室溫下1000小時(shí)后非線性系數(shù)沒(méi)有發(fā)現(xiàn)衰減在线看av网址。

And, by adding the self-adaptive temperature decay coefficient, made the SA algorithm could auto-tune the search criteria according the environment, avoid the deficiency of premature convergence.

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When PF-MBR treats municipal wastewater, the kinetic equation of sludgegrowth is Yield coefficient and decay coefficientare 0.2502 and 0.0371 respectively.The modification of membrane with low temperature plasma has no significant effect on the removal rates of pollutants.

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