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However, by taking advantage of the steric restriction offered by the three ethoxyl groups on the heads of the C8TES molecules, as well as the difference of the chemical activities between the OTS and C8TES molecules, it was possible to construct both the homogeneously and phase-separated mixed C8TES/OTS SAMs by means of the stepwise method.

但是利用C8TES分子头部三个乙氧基所形成的空间位阻以及C8TES和OTS分子之间反应活性的差异,采用分步法可以制备出混合均匀的均相和相分离(Phase-separated)的C8TES/OTS混合自组装单分子膜。

With the investigation of the domestic and foreign literature systematically, the bases on the domestic and foreign present research and the comprehensive utilizations of the various knowledge of fluid mechanics in porous medium, reservoir engineering, mathematical physics, perforation completion, numerical simulation and so on, this article takes numerical simulation of gas reservoir of water solubility as the research aim which has completed following research works and obtained the corresponding research results: it analyzes the nature of the Water-soluble gas and formation water as well as the influent factors of the solubility through the study of massive materials; It establishes mathematical models three-dimension, the dual medium, the gas-water phase through the way of finite difference in the migration of water-soluble gas, which describes the entire process of release, migration and production in formation, where it considered the problems of variable bubble point; According to the numerical models of gas reservoir of water solubility it provides solution procedure that based on black oil model; It discovers that there will obtain the good effects in the lowly speed of development through simulation; the reinjection of formation water may largely enhance the produce degree of water-soluble gas when we consider reinjection in simulator; It considered the influence of perforated completion on development so as to increase the simulator"s versatility, It discovers that the simulator may reflect the conditions of development when we exanimate he simulator"s reliability with the empirical datum.

本文以水溶性气藏数值模拟研究为研究目标,在系统调研国内外文献、深入分析国内外研究现状的基础上,综合利用渗流力学、油气藏工程、数学物理方法、射孔完井以及数值模拟理论等多方面的知识,完成了以下研究工作并取得相应的研究成果;①通过对大量的资料调研,分析了水溶气、地层水性质、储层地质性质以及影响气体在水中溶解度的因素。②考虑到由于高压产生的大量水力裂缝,采用有限差分方法建立水溶气运移的三维、双重介质、气-水两相全隐式数学模型,该模型描述了水溶气在地层中的释放、运移和采出的整个过程。③在原有黑油模型的基础上,根据水溶性气藏数值模型编制了该数值模型的求解程序,该程序可以求解单重、双重介质两种情况。④通过模拟不同开采速度对水溶气开发效果的影响,发现开采速度较慢的时候可以取得较好的开采效果。⑤在模拟器中考虑了注水对水溶性气藏开发的影响,地层水回注可以大幅度提高水溶气的采出程度。⑥为增加模拟器的通用性,在模拟器中考虑了射孔完井方式对开采的影响。⑦检验模拟器计算的可靠性,发现在使用实验数据对水溶性气藏进行模拟时,模拟器可以很好的反映气藏开发的状态。

A method for the determination of monosaccharides in ginkgo exocarp by derivatization GC is studied.

研究了衍生气相色谱法测定银杏外种皮中单糖的方法。

This paper presents a new scheme based on Nonnegative Matrix Factorization and simplex-based method to solve this problem.

本文提出一种新的基于非负矩阵因式分解(Nonnegative Matrix Factorization,NMF)算法和单形方法相结合的混合像元分解方法去解决上述问题。

On the basis of direct modelling method by using extended Kalman filter, a new method combining extended Kalman filter with adaptive extended Kalman filter is presented to model gyro drift directly from rotate angle of turntable. Extended Kalman filter has great estimation error, what is more, may be divergent if the model and noise statistic are not accurate or wrong. The new method solves the problem of general extended Kalman filter by using fictious noise with timevarying statistic to compensate the linearized model error of extended Kalman filter. The parameter estimators of single-axis and double-axis servo test are designed from it.

本文深入研究了根据伺服试验数据进行陀螺仪漂移误差模型建模的方法,在应用广义Kalman滤波器直接建模的方法基础上,针对广义Kalman滤波器对于不精确或错误的模型和噪声统计,估计误差较大,甚至滤波发散的缺陷,借助于用带时变噪声统计的虚拟噪声补偿广义Kalman滤波的线性化模型误差的新思想,提出了用广义Kalman滤波和自适应广义Kalman滤波算法相结合的方法由转台的转角数据直接建模陀螺仪漂移误差模型,并设计了陀螺仪单轴伺服和双轴伺服测试时参数估计的滤波器。

With the improvement of auto coating's performance and application techniques, the current coating's performance of filminess can be compared to the thick film.

随着汽车涂料性能的提高和涂装技术的不断改进,现在涂料薄膜状态的性能可以和以前厚膜状态的涂料相媲美,单台整车涂料用量逐渐减少,现在一台新车的涂料和10年前相比节省了40%。

The laminar flamelet model has been widely used in the recent years, but its application to the internal combustion engine is still scarce. The domestic investigation in this aspect is almost blank.

本文作为初步尝试,将层流小火焰模型应用于典型的柴油机扩散燃烧过程,以一台直喷式柴油机为对象,分别以碳十二烷与空气的单步反应和正庚烷与空气的多步反应为机理,以混和分数为自变量,以标量耗散率为参数,建立相空间中组分质量分数瞬时值及温度瞬时值的二维层流小火焰数据库。

The laminar flamelet model in combination with joint probability density function transport equation of mixture fraction and turbulence frequency is used to simulate fluctuating behavior of radiative source term in turbulent jet diffusion flames of hydrogen.

采用κ-ε湍流模型、标量联合的概率密度函数输运方程和层流火焰面模型相结合,模拟氢气自由扩散火焰中辐射源项湍流脉动特征。给出了主燃区内辐射源项湍流脉动的频率图。辐射源项的样本点分布集中,大约95%以上的样本落在其系综的±3倍方差以内,频谱图为单峰

Among these TFBSs, the FORKHEAD transcription factor family is somewhat resistance to the rSNP alterations.

其中,FORKHEAD家族中的转录因子,相较於其它转录因子,特别不易受到单核苷酸变异的影响。

This spectrometer can communicate with general purpose computer and can be controlled by it also.This spectrometer is high automatic and has powerful data processing ability. Single-chip microcomputer,Mssbauer spectrometer,Software

MS—2000型穆斯堡尔谱仪相对于FH—1918型Mssbauer谱仪具有以下新功能:能产生线性度很好的三角波,提高了Mssbauer谱的准确程度;自动单道测量γ能谱,并"卡"γ共振能峰犤5犦;谱数据掉电保护功能;上电自动

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But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。