The relationship between (αc)gas (carbon activity) and T (thermodynamics temperature) was deduced by calculating ΔG0T(standard Gibbs free energy of formation) of CH4-H2 reaction with theory and methodology of chemical thermodynamics.
本文运用化学热力学理论与方法对CH4-H2气氛下发生金属尘化时的吉布斯函数ΔG0T进行计算,从而得到气氛碳活度(αc)gas与温度T的关系式。
The results indicated that:(1)the carbon density of different bamboo organs varied from 0.
利用标准样方法研究了川西最主要的两种退耕还林植被(苦竹林和桦木林)在恢复初期生态系统碳储量、碳素密度以及空间分配特征。
The study on the carbon density,storage and distribution in a five-year birch forest on the forestland converted from farmland showed that in different organs of birch,carbon density ranged from 0.
对退耕还林5年生的桦木林生物量、碳素密度、碳贮量及其空间分布进行测定。
The carbon density and storage in four types of natural secondary forests are studied,and the results show that: 1) the range of carbon density in different apparatus of natural secondary forests is from 0.
通过对帽儿山林场4类天然次生林碳素密度及储量的比较研究,结果表明:1)天然次生林主要树种不同器官中碳素密度变化范围在0。
The major facors in affecting determination and analysis precision are sample quality, counting time and specific activity of nuclide sample.
介绍了137Cs测量的原理、过程和仪器对核素计数效率的计算,影响核素测量分析精度的主要因素是样品质量、计数时间和样品的核素比活度的大小,并分析了这3个因素各自对分析精度的影响程度,对尽量减少测量中的人为误差、提高结果的精度所应注意的问题进行了讨论。
Study on Biomass and Carbon Density of Acacia mangium Plantation
马占相思人工林生物量及碳素密度研究
Carbon Density and Storage of Acacia mangium Plantation Ecosystem in Nanning,Guangxi
南宁马占相思人工林生态系统碳素密度与贮量
EFFECT OF RESHAPING TECHNOLOGY OF PARTICLE ON DENSITY OF GREEN BODY OF SLIP CAST SiC
颗粒的整形工艺对注浆成型碳化硅素坯密度的影响
Main natural factors controlling soil organic carbon density in the uplands of Northeast China
东北地区旱地土壤有机碳密度的主控自然因素研究
FACTORS AFFECTING VARIATION OF SOIL ORGANIC CARBON DENSITY IN YUNNAN-GUIZHOU-GUANGXI REGION
滇黔桂地区土壤有机碳密度变异的影响因素研究
INVESTIGATION OF CARBON MAT ELECTRODES Ⅰ. THE CHARACTERISTIC DENSITY OF THE ELECTRODE
碳毡电极研究(Ⅰ)——碳毡电极的特征密度
Researches on Soil Organic Carbon Density and Carbon Sequestration Effects in the Farmland of Yangtze Delta;
长三角农田土壤有机碳密度及碳收集效应研究
Organic carbon density and storage of forest ecosystems in Three Gorges Reservoir Area
三峡库区森林生态系统有机碳密度及碳储量
Distribution characteristics and influential factors of vegetation carbon density of alpine grassland ecosystem in the south slope of Gongga South Mountain-Lhagoi Kangri mountain
贡嘎南山-拉轨岗日山南坡高寒草原生态系统植被碳密度分布特征及其影响因素
testing method for density of high purity hydrocarbons by bingham pycnometer
高纯碳氢化合物密度测量方法
IMPROVING CRITICAL CURRENT DENSITY OF MgB_2 BY CODOPING WITH C AND Al
铝、碳共掺提高MgB_2临界电流密度
radioisotope densimeter
放射性同位素密度计
Synthesis and Blending of High-density Hydrocarbon Fuels with Density Beyond 1.0 g·cm~(-3)
密度大于1的高密度液体碳氢燃料合成及复配研究
Forest Carbon Density and Storage in Jiangxi and Dagangshan Mountains;
江西省暨大岗山林区森林碳密度与碳储量的研究
The Impacts of Human Disturbances on Soil Carbon Density and Ecosystem Storage of Carbon of Typical Steppes
人为干扰对典型草原土壤碳密度及生态系统碳贮量的影响
Research on carbon storage and carbon density of main forest types at Huoditang forestry region in the Qinling Mountains
秦岭火地塘林区主要森林类型的碳储量和碳密度
Effects of Fargesia Denudata Density on Soil Carbon, Nitrogen Pool Beneath Subalpine Forest of Western Sichuan;
川西亚高山箭竹密度对土壤碳、氮库的影响
High-density Endothermic Fuel: Cracking and Combustion Characteristics Study;
高密度吸热型碳氢燃料裂解与燃烧特性研究