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能量转化
    Grassdyke-FishpOnd Ecosystem──Its Energy Conversion and Econolnic Benefit
    草基-鱼塘生态系统中能量转化与经济效益分析
    The photoelectrochemical activity increases and then decreases with increasing substrate temperature which forms a peak value at 300 ℃. Under a light intensity of 187 mW/cm2 ,the electrode deposited at 300 ℃ gives a saturated photocurrent of 4.1 mA/cm2 with increasing electrode potential. The highest energy conversion efficiency was calculated as 0. 68% at electrode potential of -0. 13 V(vs SCE).
    光电化学活性随着沉积温度的升高先增大后减小,在300℃为最佳,在187 mW/cm2的光照下此温度制备的电极的光电流密度饱和值约为4.1 mA/cm2,且在电极电势为-0.13 V(vs SCE)处的能量转化效率为0.68%。
    The photoelectrochemical activity increases and then decreases with increasing substrate temperature which forms a peak value at 300℃ . Under a light intensity of 187 mW/cm2, the electrode deposited at 300℃ gives a saturated photocurrcnt of 4. 1 mA/cm2 with increasing electrode potential. The highest energy conversion efficiency was calculated as 0. 68% at electrode potential of - 0.13 V(vs SCE).
    光电化学活性随着沉积温度的升高先增大后减小,在300℃为最佳,在187 mW/cm2的光照下此温度制备的电极的光电流密度饱和值约为4.1 mA/cm2,且在电极电势为-0.13 V(vs SCE)处的能量转化效率为0.68%。
    A Study of the Energy Conversion Efficiency of a Gasification System in a Coal Gas fired
    燃煤气的闭式STIG循环中气化系统能量转化效率的研究
    THE ENERGY CONVERSION AND LOSS IN COLLISION
    碰撞的能量转化和能量损失
    In all-day long, the Fv/Fm, ΦPSH and ETR of C_3 plants were higher than that of C_4 plants notably, it was based on the high PS II activity and high efficiency of energy conversion and energy transmission.
    C_3植物的Fv/Fm、φ_(PSⅡ)和ETR值是全天显著大于同时段C_4植物,表现了C_3植物较高的PSⅡ活性和能量转化、传递效率。
    Membrane proteins associate with biomembrane lipid bilayers and mediate important biological functions, such as signal transduction, energy conversion, transport of ions and molecules across the membrane.
    膜蛋白是细胞膜的另一种主要组成成分。 它与脂双层膜一同参与并调控许多重要的生物功能,如信号传递、能量转化、离子运输以及分子过膜运动等。
    The supercritical water gasification process provides a high-efficient energy conversion and utilization method.
    (3)超临界水气化制氢过程具有较高的能量转化效率和(火用)效率,是一种高效洁净的能源转化和利用新途径。
    On the basis of the aquatic ecosystem and Lindeman's "efficiency of energy conversion ", following formula is suggested to estimate the complex potential production of fish in the reservior. Fc=0.1 Λ_1-0.9f_2+10Λ_4 Thus, the complex potential fish production of the reservior is 253.08 kg·ha~(-1)~(-1).
    据推算,腐屑链的细菌年生产量为19676 kJ/m~2.根据本库生态系和Lind-eman的能量转化律,拟定综合鱼产力的估算公式为:Fc=0.1A1-0.9f_2+10A4,计算值为253.08kg/ha.
    The results show that the function of the land ecosystem is low,the energy conversion efficiency and the stability is not high.
    结果表明,该县土地生态系统功能低下,系统的能量转化效率及稳定性较低。
    Energy conversion, water level, distribution and variation of depression cones during artesian and pumping processes are analyzed.
    从抽水设备作功、消耗能量的角度,分析了自流和抽水过程中的能量转化、水位与压降漏斗的分布和变化规律。
    The specific process and characteristics of the energy conversion by the water sail machine are explained. Bernoulli's equation is applied in the water sail machine and the basic formula N = 9.81 Qh has been derived,showing that the water sail machine still abides by the basic law of energy conversion in nature.
    阐明了水帆机能量转化的具体过程和特点 ,并将伯努利方程应用于水帆机 ,推导出了基本公式 N =9.81 Qh,说明了水帆机仍然遵守这一能量转化的自然界基本规律
    In the latter case,using SDS can reduce the threshold and improve the energy conversion efficiency of the dye laser of Rhodamine 6G.
    在后一浓度下SDS的加入使若丹明 6G染料激光阈值降低 ,能量转化效率提高。
    In the absence of SDS,the laser threshold power density is near 65 MW·cm -2 .While in the present of SDS,the threshold is reduced to 0 8 MW·cm -2 .The laser energy conversion efficiency can reach 25% when the pumping power density is 65 MW·cm -2 .We also observed the red shifts of absorption spectrum,fluorescence spectrum and the dye laser spectrum in the present of SDS.
    不加SDS时的激光阈值功率密度约为 6 5MW·cm-2 ,加入 4 1× 10 -2 mol·L-1的SDS后 ,激光阈值功率密度降为 0 8MW·cm-2 。 泵浦光功率密度为 6 5MW·cm-2 时 ,能量转化效率达到 2 5 %。
    Study on Energy Conversion Rate of Annual Cultivated Grassland—Tibetan Lamb Fatting in Alpine Region
    高寒地区一年生人工草地--藏羔羊育肥能量转化效率研究
    PRIMARY PRODUCTIVITY AND ENERGY CONVERSION EFFICIENCIES FOR SILVER CARP AND BIGHEAD CARP IN HIGH-OUTPUT FISH PONDS WITH THE BLACK CARP AS THE MAJOR SPECIES FOR CULTURE
    主养青鱼高产池塘的初级生产力及其能量转化为鲢、鳙产量的效率
    PRIMARY PRODUCTIVITY AND ECOLOGICAL EFFICIENCIES OF ENERGY CONVERSION IN HIGH OUTPUT FISHPONDS WITH SILVER CARP,BIGHEAD AND TILAPIA AS THE MAJOR CULTURE SPECIES
    主养鲢鳙非鲫高产鱼塘的初级生产力与能量转化效率的研究
    Research on Energy Conversion and Material Cycle in Agro-Ecosystem in Sanddrift Semiarid Area in the NrothWest of Hebei Province
    冀西北风沙半干旱区农业生态系统能量转化物质循环研究
    Research on Energy Conversion and Material Cycle in Agro-Ecosystem in Sanddrift Semiarid Agrea in the Nroth West of Hebei Province
    冀西北风沙半干旱区农业生态系统能量转化物质循环研究
    Energy conversion and nutrient cycling in grassdyke-fish pond ecosystem.
    草基-鱼塘生态系统的能量转化与养分循环研究
 

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