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调节速率

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In order to understand the effect of UV-B radiation on systematic water metabolism in plants, this review outlined domestic and international achievements in the last 30 years relating to the physiology and biochemistry of plants under UV-B radiation, such as root activity, transpiration rate, water use efficiency, and changes in leaf proline and soluble sugar content at different plant developmental stages. The effect of UV-B radiation on stomatal behavior and related mechanisms including a variety of signal molecule (ABA, hydrogen peroxide, nitric oxide, etc.) content and the role of signal molecules in stomatal activity were also reviewed.

为系统了解UV-B辐射对植物水分代谢的影响,本文从生理、生化两个角度概述了近30年国内外相关方面的研究成果,内容涉及UV-B辐射对植物根系活力、蒸腾速率、水分利用效率及植物不同发育期叶片脯氨酸、可溶性糖含量的影响;总结了UV-B辐射对植物气孔行为的影响及相关机理,包括植物体内ABA、H2O2、NO等信号分子含量的变化以及这些信号分子在调节气孔行为方面发挥的作用。

Blue also stimulates the thyroid gland to release thyroxin, a hormone that regulates metabolic rate.

蓝色又可以刺激甲状腺分泌甲状腺激素,而甲状腺激素可调节新陈代谢的速率。

Based on the traffic model of a single node and on the system stability criterion, it is shown that the PD controller can regulate the source rate on the basis of the knowledge of buffer occupancy of the destination node in such a manner that the congestion-controlled network is asymptotically stable without oscillation in terms of the buffer occupancy of the destination node.

在单个节点的交通流的模型基础上,运用控制理论中系统稳定性分析方法,讨论如何利用信终端节点缓冲占有量的比例加微分的反馈形式来调节信源节点的能控交通流的输入速率,从而使被控网络节点的缓冲占有量趋于稳定。

In the present dissertation, a surfactant-templated mesoporous silica molecular sieve with high pore volume, high porosity and narrow bimodal mesopore size distribution was synthesized for the first time in a reaction system, which was used usually in the synthesis of mesoporous MCM-41 molecular sieves, by a judiciously controlled two-phase sol-gel processing under basic conditions.

在本论文中,我们通过对一个通常用于制备介孔MCM-41分子筛的反应体系中正硅酸乙酯水解与缩合反应相对速率的精确调控,首次在弱碱性体系中合成了一种具有高孔隙率、大孔体积和双介孔孔分布特征的新型二氧化硅分子筛材料,简记为BMS,并对BMS二氧化硅分子筛中双介孔结构形成的原因及各种可能对其结构和性质产生影响的合成因素如Ammonia/silica摩尔比、组分浓度的变化、表面活性剂烷基链长度的调节、辅助有机物均三甲苯的引入、催化剂的结构和性质、溶剂和助溶剂的极性和用量、老化和干燥条件的变化及合成后水热处理等,利用不同的测试手段如XRD,SEM,TEM,〓Si MAS NMR,TG-DTA,N〓吸附测试等进行了系统的表征研究。

Many implementations place the responsibility of rate- adaptivity at the source.

许多操作把速率的自适应调节的任务放到数据源。

And pricing change rule.Detect congestion and congested node to feedback congestion notification massage hop-by- hosp. When Congestion occurs, lowest value packets are dropped.Sink sent rate adjusting message based on value reliability when congestion disappear.

III当无拥塞时,Sink节点根据各监测事件的价值可信度情况,发送速率调节消息,避免拥塞反复出现,同时减少数据过量时带来的能量损耗和数据量过少影响Sink节点准确监测该事件和资源的浪费。

The tailorable biodegradation of calcium phosphates composite powders can be effectively improved with the composite powders containing nanostructured clusters, in which the different phases exist in uniformly.

按生物环境下磷酸钙实际降解过程的要求,不同晶相的晶粒应形成一个纳米结构化的团簇(即在几百纳米范围内各相均匀分布的纳米晶粒团聚体),这样才能有效地发挥出复相调节生物降解速率的效能。

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Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严,以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆,把帆卷起,系住。

Therefore, positively advances the interest rate marketability reform is one of current our country finance reform important tasks.

因此,积极推进利率市场化改革是当前我国金融改革的重要任务之一。