查询词典 diffusion cosettes

The calculation of parameter m_0,that is the amount of CO_2 absorbed by unit volume of concrete completely carbonated,was proposed by the analysis of concrete hydration process and carbonation mechanism,and the simplification formula of fly ash concrete applied in practice was suggested.The calculation of another important parameter D_e,that is the effective diffusion coefficient,was also proposed on the basis of the mechanism gas diffusion in concrete.

通过对混凝土水化过程、碳化机理的深入分析，提出了模型参数——完全碳化时单位体积混凝土吸收二氧化碳的量m_0的计算方法，并给出了工程中常用粉煤灰混凝土的简化实用公式；基于气体在混凝土中扩散机理的分析，给出了另一个重要的模型参数——二氧化碳在混凝土中有效扩散系数D_e的计算公式。

A new kind of gas diffusion electrode- flaky and vertical gas diffusion electrode was introduced in this paper.

介绍了一种新型气体扩散电极———片状立式气体扩散电极三相界面的工作原理和优点，这种片状电极可用于气体参与反应的金属-空气电池和燃料电池。

The study focuses on transport phenomena of cathode gas diffusion layer of PEM fuel cell by using two-phase flow model. Liquid water saturation and oxygen concentration profile in gas diffusion layer and polarization curve are investigated by numerical simulations.

本研究主要探讨质子交换膜燃料电池阴极气体扩散层内的两相流传输现象，利用数值方法求解出燃料电池阴极气体扩散层内液态水饱和度分布、氧气浓度分布以及性能曲线。

A pair of redox peak of Eu~(3+) of the concentration of 1×10~(-4) mol/L appeared on both bare pyrolytic graphite electrode and bare glassy carbon electrode in HAc-NaAc 0.2 mol/L pH 6.0 buffer, and controlled by the diffusion current. There was also a good reversible redox peak of Eu~(3+) of the concentration of 1×10~(-3) mol/L on bare pyrolytic graphite electrode in Heps 0.01 mol/L pH7.4 and in the charge of diffusion current.

当底液为0.2mol/L pH6.0的HAc-NaAc缓冲溶液、Eu~(3+)浓度为1.0×10~(-4)mol/L时，在裸热解石墨电极与裸玻碳电极上均有一对氧化还原峰，且受扩散电流控制；当底液为0.01mol/L pH7.4 Hepes缓冲溶液、Eu~(3+)浓度为1.0×10~(-3)mol/L时，在裸热解石墨电极上出现一对可逆性非常好的氧化还原峰，同样受扩散电流控制。

The conclusion is that there is enough diffusion reaction between base material and interlays, vacuum diffusion bonding weldability of TiAl and 42CrMo is good.

研究发现，母材与中间层发生了扩散反应，采用加入中间层的真空扩散连接TiAl金属间化合物与 4 2CrMo钢具有良好的可焊性。

We introduce a broader range of channels enhancing growth either by external diffusion of knowledge from technology advanced countries to late-comer countries or by experiential diffusion of knowledge brought about by the interaction between venture capitalists and start-up entrepreneurs.

传统的内生成长理论著重在人力资本及研究发展的重要，我们则进一步将另外两类的知识长成管道纳入现有的理论模型：一是来自技术先进国家对技术落后国家的知识外溢效果，包括衡量以出口及外人投资为管道的技术吸收能力，与国家间技术发展的差异；二是来自创业投资者对新进公司企业家的经验传递效果。

In order to understand the sorption and diffusion behaviors on mudstones , experiments including solid analysis, batch tests , kinetic sorption/desorption test and column diffusion test.

实验内容包括泥岩的固相分析、等温批次实验、动力吸脱附实验、以及管柱扩散实验。

Result and conclusion: The electrochemical experimental results show that the two totally irreversible oxidation peaks in the region of 0.3-1.2 V vs SCE for both MT and SR were observed,and the electrode reactions processes were diffusion-controlled.Their electron transfer number n and electron transfer coefficient α were obtained by CV and electrolysis with coulometry.The diffusion coefficient D and rate constant k f were also calculated by CC and CA.

结果与结论：在0.30~1.2 V电位窗口内，MT和SR均产生1个不可逆氧化峰，并且它们的电极反应均受扩散步骤控制；用控制电位电解库仑法和循环伏安法得到MT和SR的电极反应电子转移数n和电荷转移系数α，运用计时库仑法和计时电流法测定了它们的扩散系数 D 及电极反应速率常数kf。

The parameters include waveguide width: 8μm, titanium film thickness:50~60nm, index change: 0.006, diffusion temperature: 1050 and diffusion time: 9~10 hours.Designed and produced a 2 X 2 coupler Optical switch and a 1 X 2 digital optical switch. The coupler optical switch was produced by AP reversal structure, with the main parameters such as total length of switch: 30mm, waveguides center distance: Hum, interaction length: 17mm, and at 17V with a crosstalk of -18dB. The digital optical switch was produced by asymmetry electrode Y branch structure. The main parameters of this switch such as switch length: 25mm, the angle of Y branch: 0=0.1? center distance at branch end: 30μm, the center distance of electrons: 12μm, and at 27V with a crosstalk of 18dB.

设计并制作了2×2耦合型光开关和1×2数字开关，其中耦合型开关主要采用的反转Δβ定向耦合器开关，开关长度约30mm，波导宽度8μm，波导间距14μm，耦合区长度17mm，电极主要采用三电极结构，最终测得对TE模开关电压＜-15，消光比≈18dB；数字开关采用非对称电极Y分叉数子开关结构，利用BPM软件模拟了其开关特性并优化了器件参数，制作中采用的主要参数为：开关长度约25mm，Y分叉角θ=0.1°，Y分叉末端波导间距30μm，电极间距12μm，最终测得开关电压27V，消光比≈18dB。

In the study of Y-shaped micromixer of straight channel, the inlet velocity and diffusion coefficient have tremendous influence on mixing of fluid. With the increase of inlet velocity and diffusion coefficient, the mixing effects of two kind of liquid gradually worsen.

在对Y型直通道微混合器的研究中发现，液体的入口速度和扩散系数对混合有较大的影响，随着入口速度和扩散系数的增大，其混合效果逐渐的变差。

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。