查询词典 aggregates

The dissolubility of PPLA in water was (2.16～4.32)×10－2 mg·mL－1 according to eye judgment. The critical micelle concentration was 2.16×10－2 mg·mL－1 obtained from a fluorospectrophotometer. The self-assembled aggregates of PPLA in water were nanoscale spheres observed by a transmission electron microscope. The particle size and zeta potential tests by dynamic light scattering revealed that during preparation, the ratio of hydrophilicity/hydrophobicity, the aqueous medium and the pH had great influences; while dilution, freezing and pH change to basic condition had no effect after preparation, but pH change to acidic condition made the nanoparticles precipitate.

目测法得到其溶解度为(2.16～4.32)×10－2 mg·mL－1；荧光法得到聚合物的临界胶束浓度为1.12×10－3 mg·mL－1；透射电子显微镜观察显示该聚合物在水中的自组装聚集体为纳米级球形；动态激光光散射测试微球的粒径和Zeta电位发现，在微球的制备过程中，聚合物的亲/疏水性比例、水相介质及水溶液的pH值对它影响显著；而制备后，稀释和冷冻对它无显著影响，改变微球的环境pH值至酸性，出现聚集，至碱性无影响。

The increase of marginal propensity to invest will meets the need to maintain the equilibrium of macroeconomic aggregates in a period of accelerative economic growth, and serves as a requirement for the realization of accelerative economic growth.

投资倾向的提高既是保持经济加速增长时期宏观总量均衡的要求，也是实现经济高速增长的条件。

The realization of the equilibrium of macroeconomic aggregates requires that the decline of marginal propensity to consume be accompanied by an increase of marginal propensity to invest.

为了实现经济总量的均衡，边际消费倾向的下降要求边际投资倾向必须相应提高。

The evolvement behavior of the average length of the ramified Ag aggregates is similar to that of the coverage ratio in the central region of the sample.

银原子凝聚体的分枝平均长度随基底温度的演化过程也具有类似的规律。

This dissertation involves the study of the growth dynamics of colloidal particles under unequilibrium and irreversibility condition. Firstly, it is of interest to investigate whether the ideal diffusion or reaction-limited aggregation universal behavior can be observed for the initially polydisperse practical system of basic yttrium carbonate as well. The fractal structure of basic yttrium carbonate aggregate cluster was observed using transmission eletron microscopy. The aggregation kinetics of basic yttrium carbonate colloids was studed using dynamic 1ight-scattering techniques. At 1.00mol/l NaCl solution the fast diffusion-limited aggregation behavior was observed with an increase in the aggregate size over time described by a power law. The aggregates are characterized by a fractal dimension D=1.82. The disordered and ramified cluster is consisted of primary colloidal particles and tenuous and more open. These are in good agreement with those observed for other colloidal system such as colloidal gold (1.86), silica (1.85) and polystyrene latex (1.82) in diffusion-limited aggregation from the static and dynamic light scattering by Lin. Therefore ideal diffusion-limited aggregation behavior can be observed in practical polydisperse system as well. Smoluchwski and fractal theories were used to obtain the aggregation rate constant for initially polydisperse system for the first time.

本论文研究胶粒的非平衡不可逆聚集动态学，分为两个部分，第一部分是通过实验研究一个新的初始多分散的碱式碳酸钇胶粒实际体系中，聚集标度性质的普适性，即使用透射电子显微技术观测聚集粒子簇的分形结构，使用动态激光光散射研究碱式碳酸钇胶粒的聚集动力学，胶粒带电而产生静电排斥作用使得碱式碳酸钇胶粒处于稳定状态，当加入电解质NaCl溶液时，碱式碳酸钇胶粒间的Debye-Hückel屏蔽距离缩短，从而降低静电排斥能垒，引起胶粒发生不可逆聚集，加入电解质NaCl的浓度为1.00mol/l时，碱式碳酸钇胶粒进行快速聚集，经历扩散控制聚集机理，形成结构疏松、更为开放的分形聚集粒子簇，其分形维数为1.82，碱式碳酸钇胶粒聚集增长动力学遵循幂函数增长规律，与Lin等使用静态激光光散射和动态激光光散射测量硅胶(1.85)、金胶(1.86)和聚苯乙烯胶乳(1.82)在扩散控制聚集状态形成聚集粒子簇的分形维数值以及粒子簇聚集增长的动力学规律相一致，表明胶粒聚集标度性质的普适性质在初始多分散的实际体系中也是存在的，首次由动态激光光散射的实验数据得到初始多分散胶粒分形粒子簇的聚集速率常数，并且其值与Smoluchowski聚集速率理论预期相符。

In the test of pavement design with hot recycled asphalt mixes, the content of recovered asphalt pavement is 40%, and the recovered asphalt pavement was added in new aggregates, new asphalt and rejuvenator. They were mixed in the certain temperature at central plant.

再生沥青混合料配比设计实验是沥青刨除料的添加量为40%，再拌入新集料、新沥青和再生剂，进行热搅拌得到再生沥青混合料。

Experimental analysis of recovered asphalt and sieve analysis of recovered aggregates were carried out for recovered asphalt pavements. The new asphalt and the rejuvenator were added into old asphalt, and the object viscosity of recycled asphalt is about 120 Pas.

将沥青路面刨除料进行回收沥青实验分析和回收集料筛分析，并在旧沥青中添加新沥青和再生剂得到再生沥青，其目标粘度为120Pas。

Robinia pseudoacacia, Caragana, Tamaricaceae of water-stable aggregates the content of most agricultural fields were 3.4,2.8 and 2.4 times.

刺槐、柠条、柽柳的水稳性团聚体的含量最多，分别是农田的3.4、2.8和2.4倍。

commited information rate,round trip time and retransmission timeout,can bias bandwidth assurance.through researching the relation between bandwidth and these factors, this paper proposed a cir,rtt,rto aware marker(crr3cm) based on time sliding window three color marker(tsw3cm),which could achieve proportional fair sharing of excess bandwidth among aggregates and mitigate the impact of cir,rtt,rto for bandwidth assurance.

摘 要：往返时间、目标速度以及重传超时等因素导致了带宽分配的不均匀。通过研究带宽与这些因素的关系，在时间滑动窗口三色标记器（tsw3cm）的基础上，提出一种cir、rtt、rto感知的标记器(crr3cm)。该标记器完成了在各汇聚流之间对剩余带宽的公平分配，减少了目标速度、往返时间，以及重传超时因素对带宽分配的影响。

Connecting with the character of ESR spectra at 77K andcalculated LUMOs, HOMOs the linear relationship between spin transfer efficiencyand molar ratios of nucleotide in DNA to sinapic acid or sinapine provides quantitativeevidence of long range electron transfer within mixed aggregates.

将低温获取的电子自旋共振波谱与DNA组分及羟基肉桂酸衍生物的前线轨道能量相关联，依据自旋自DNA向芥子酸及其衍生物的转移效率与核苷酸和后者摩尔比的线性关系揭示混合堆集物中电荷长程传递的证据。

At the rear was an innovative combination transaxle with the gearbox, clutch, differential, and inboard-mounted drum brakes.

在后面是与变速箱，离合器，差的创新结合变速，和内侧安装鼓式制动器。

For more people can apprecaite and have the master work, there is reproduction painting appears in the market, the large various selection of paint,the high saturation of color plus the plentiful sfumato, to make the reproduction perfect copy and detail as original painting, so as to meet the requirment of amateurs who love art paintings,they do not need to pay high price to get classical paintings.

颜料色域广，色彩饱和度高，色彩层次丰富，图像色彩还原真实，能完美的复制原作，满足艺术爱好者欣赏，艺术爱好者们不用支付昂贵的价格就能拥有经典油画。