查询词典 carbon cycle

But the concentration of Li2CO3 remains nearly consistent and a new component, CH3OLi, is found in SEI. It can be concluded from these results that anisole reacts with the reduction product of EC and DEC, RCO3Li, in the first process of Li＋ intercalating into the carbon electrode. The obtained CH3OLi is helpful in building up a more effective and stable SEI of the carbon electrode, reducing the cointercalation of solvent molecular. All these contribute to the improvement of the cycle performance of lithium-ion battery.

根据以上分析结果，提出了苯甲醚对锂离子电池循环性能的影响机理：在Li＋嵌入石墨电极的初次过程中，苯甲醚和EC、DEC的还原分解产物RCO3Li发生基团交换反应，生成CH3OLi，该产物能有效提高石墨电极表面SEI的稳定性，减少锂离子嵌入石墨过程中引起的溶剂分子共嵌入，从而改善电池的循环性能。

The understanding of biogeochemical cycle of hydrogen, oxygen, carbon, nitrogen, and sulfur elements in nature ecosystem have increased substantially in the past two decades owing to the improvement of gas isotope ratio mass spectrometer and the wide application of isotopic studies with these elements.

近20年由於「气相同位素比值质谱仪」的改良和氢、氧、碳、氮和硫等稳定同位素的广泛研究，稳定同位素的研究技术已实质增加我们对於这些元素在自然生態系中生地化循环的瞭解。

Biomass-derived black carbon,also named biochar,has the characteristics of high stability against decay and high capability of adsorption,and can affect the environment through its interactions with climate and geology,playing a significant role in global climate change,carbon biogeochemical cycle,and environmental system.

生物质炭具有高度稳定性和较强的吸附性能，可从气候、地质等多方面对环境产生影响，在全球气候变化、碳生物地球化学循环以及环境系统中发挥着非常重要的作用，长期以来成为国内外大气科学、地质学和环境科学领域研究的热点。

The friction performances of carbon face were investigated with an inertia friction tester. The torque curve of carbon face was ideal, the coefficient of static friction was lower than that of dynamic in 0.28 MPa, the friction coefficient of static and dynamic decreased with the braking pressure increasing. To the fiber face, the coefficient of dynamic friction of carbon face was more stable in cycle braking process, the wear rate was lower, and it was efficient to protect the couple plate not to be worn.

结果表明：碳质层的摩擦力矩在制动初期上升较快，中间过渡区平稳，尾部翘起较小；在制动压力小于0.28 MPa时静摩擦系数小于动摩擦系数，且动、静摩擦系数均随制动压力增加而减小；相对纤维层而言，采用碳质层摩擦时摩擦力矩曲线形态更好，连续制动时摩擦系数波动较小，磨损率低且能够有效保护偶件，是1种静/动摩擦系数比较低且适用于高载荷工况条件下使用的摩擦材料。

Genetic diversity of carbon-nitrogen cycle was relative to soil organic matters,total nitrogen,carbon-nitrogen ratio,available phosphor and water content with different degrees.

碳氮循环基因多样性与土壤有机质、全氮、碳氮比、速效磷和土壤含水量等生态因子有不同程度的相关。

In these chloroplasts carbon dioxide combines with phosphoenolpyruvate to form oxaloacetic acid, which is transported to the bundle sheath cells, where the carbon dioxide is released, then fixed by the enzyme ribulose bisphosphate carboxylase to form glycerate 3-phosphate, the first step in the Calvin cycle.

在叶肉细胞的叶绿体中二氧化碳与磷酸烯醇丙酮酸结合形成草酰乙酸，后被运到邻近的维管束鞘细胞，在那里二氧化碳被释放，后被核酮糖二磷酸羧化酶固定形成3－磷酸甘油酸，这是卡尔文的循环第一步。

While at Phase IV, with specific growth rate increasing, the carbon flux of PP decreased gradually, and the carbon flux of Tricarboxylic Acid Cycle, which providing enough precursors and energy to synthesize human-like collagen, decreased slightly with specific productivity of human-like collagen increasing.

在第Ⅲ阶段，随着比生长速率的增大，进入磷酸戊糖途径的碳流量先增大后减小，当比生长速率为0.15h~(-1)时达最大值，其次是0.20h~(-1)的，以合成足够的前体和NADPH满足细胞生长所需；在诱导后，随着比生长速率的增大，进入磷酸戊糖途径的碳流量逐渐减小，而进入三羧酸循环的碳流量随着类人胶原蛋白比产率的增大而稍有减小，以提供足够的前体和能量合成目标蛋白。

During growth phase the metabolic flux to glycerol synthesis was much large, and the carbon was mostly catabolized in TCA in the glycerol production process. With large flux through TCA cycle ATP could be overproduced by NADH oxidation and most ATP may be in futile cycle, which may be the reason that the yield of glycerol is hard to be improved.

分析发现菌体生长阶段合成丙三醇的代谢流较大，这可能是细胞为了维持高渗透压环境下正常生理功能所需；但是在菌体生长停止后，产丙三醇阶段合成丙三醇的代谢流并没有增加，而是TCA循环中代谢流增加，于是产生的NADH氧化生成更多ATP，大都ATP可能是无效循环消耗掉，这是丙三醇产率没有达到理想产率的根本所在。

Pericarps activated carbon have large domestic manufacturers of activated carbon, production of non-stereotyped porosity developed a series of activated carbon, surface area, wear-resistant high strength, the use of long cycle, rinse the characteristics of the time is short, widely used in pure water, high water Purification, medicine, food, industrial water treatment, air purification, MSG purification and other fields.

活性炭有国内大型果壳活性炭生产厂家，生产的不定型系列活性炭具有孔隙发达，比表面积大，耐磨强度高，使用周期长，冲洗时间短等特点，广泛用于纯净水，高纯水净化，医药，食品，工业水处理，空气净化，味精提纯等各个领域。

The corresponding relations between the strain of the static state and dynamic cycle load and the volume resistance of the short chopped carbon fibers, short chopped carbon mat, unidirectional carbon fibers reinforced vinyl resin composites is existed. The physical modes of these kinds of composites are also designed based on the experiment data. The resistance and strain of the short chopped fibers reinforced vinyl composites satisfy the equation of y =A + Bx + Cx~2 in the static strain test method and the short chopped mat reinforced vinyl composites is y = A + Bx.

短切碳纤维、短切碳纤维毡、单向碳纤维增强乙烯基酯树脂复合材料在静态和动态循环载荷下，应变与电阻之间有较好的对应性，同时根据实验数据，建立了不同条件下该复合材料应变和电阻变化规律的物理模型，短切碳纤维增强乙烯基酯树脂复合材料在静态拉伸时电阻与应变之间满足：y=A+Bχ+Cχ~2；碳纤维毡增强乙烯基酯树脂复合材料在静态拉伸破坏时电阻与应变之间满足：y=A+Bχ。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。