查询词典 weak solution

The fullerol showed a weak RLS spectrum in aqueous solution, but its intensity could be enhanced significantly in the presence of ytterbium to form a stable RLS system.

富勒醇的水溶液表现出弱的共振光散射性质，但是当三价镱离子存在时，它的共振光散射强度显著增强，形成了一种稳定的富勒醇/镱Ⅲ共振光散射体系。

According to the modified Rytov method for the optical wave propagation and withconsidering the effect of the turbulence spectrum model with zero and non-zero innerscale in addition to the finite outer scale, the solution to the scintillation index as afunction of the Rytov variance is obtained from weak to strong fluctuation regions forGaussian beam propagation along the horizontal path.

根据光波传播的修正Rytov 方法，得到了高斯波束水平传输时在零内尺度湍流谱模型及考虑湍流内尺度效应和外尺度效应条件下，从弱起伏湍流区到强起伏湍流区闪烁指数随Rytov 方差变化的计算公式。

In this dissertation, the weak gels with good thermal stability and/or salt tolerance for use in EOR were prepared from HPAM and aluminium citrate or the compound containing hydroxymethyl groups in aqueous solution. The gelation mechanisms, structure, and properties of the HPAM-AlCA and HPAM-PRIM gels were investigated. For the HPAM-AlCA gelling system, the effects of aluminium : citrate and pH value on the properties of AlCA were systematically studied.

本文以研制高性能价格比的提高石油采收率用聚合物材料为目标，在耐温抗盐水溶性聚合物研究工作的基础上，选择聚合物弱凝胶这一前沿课题为研究对象，对HPAM-柠檬酸铝凝胶的有关基础问题进行了研究，研制出了具有优异耐温抗盐性能的HPAM-PRIM弱凝胶，解决了采用聚合物提高石油采收率的高性能与低成本之间的矛盾。

By using Digital-Trailing-Filter and DSP technology, we got solution of trailing filter for transient signal in frequency-scan test,so as to refine the needed test signal from the deformative and weak signal.

通过采用数字跟踪滤波和DSP处理技术，解决了扫频测量中瞬态信号的跟踪滤波，使仪器能够在畸变的、微弱的信号中提取出需要的测试信号，同时使仪器的测量时间大大缩短。

The UV and IR spectroscopic studies of the monomer films showed that the photoreaction ratio of monomer (about 50%) was higher than the corresponding photosensitive polymer (about 10%, PVCi). The polarized IR spectra proved that obvious anisotropic absorption was displayed in the irradiated photosensitive film. With polarizing microscopy method, we found that these kinds of photoalignment films exhibited good alignment ability, and the stability of the photoalignment film could reach about 100℃. 2 A photosensitive self-assembled monolayer was fabricated that contained photo-cycloadditable groups, such as, coumarin and cinnamate. The reaction process were detected by contact angle method because the IR absorption of monolayer was very weak. The photosensitive self-assembled monolayer promote uniform alignment of nematic liquid crystals by LPUV, and it thermal stability could reach about 130℃. 3 A cationic bolaform amphiphiles was synthesized that had two photosensitive double bonds, and can be polymerized by ultraviolet. A layer-by-layer self-assembled deposition film was prepared in aqueous solution by using this material and poly (sodium 4-styrenesulfonate). The UV-Vis. spectra proved that the multilayers film was uniform and layer-by-layer. When LPUV irradiated the film, the photopolymerizable double bond underwent [2+2] cycloaddition, and the production of the reaction distributed along the polarized direction of incident LPUV. Polarized UV-Vis. spectra indicated that the irradiated self-assembled multiplayer film was anisotropic, and the dichromic ration is about 0.09, it is higher than the spin-coating method of photosensitive polymer or monomer. We used this anisotropic film as alignment layer of nematic liquid crystals, and obtained a uniform and stability alignment result, the static contrast ratio is about 100, which is very close to application of liquid crystal device. This thesis is an instance that the photochemical material was used in the physics region of liquid crystals, the route that was from photosensitive monomer, self-assembled monolayer film to self-assembled multiplayer film was undergone, by this logical research method photoailgnment of liquid crystal was extended and consummated.

围绕上述思路开展了如下工作：1合成了三种可进行光二聚反应的光敏小分子单体，LPUV 辐照制作了光控取向膜；用紫外-可见光谱法和红外光谱法分析了薄膜中的光化学反应，发现小分子的光反应程度可达到50%以上，至少比光敏高分子高出5倍；薄膜的偏振红外光谱证实，经过LPUV 辐照后薄膜出现了明显的各向异性；将小分子光控取向膜制成液晶器件，在偏光显微镜下观察看到均匀一致的液晶取向；并且热稳定性达到100℃左右，接近实用化要求。2制备了含肉桂酸、香豆素基团的自组装单层膜；采用接触角的方法监测自组装反应的动力学过程；紫外-可见光谱证实了自组装单层膜在石英基板表面形成；自组装单层膜经LPUV 辐照后能诱导液晶均匀取向，而且热稳定性可达130℃，热稳定性进一步提高。3合成了含有光敏双键的双季铵盐，在水溶液状态下将它和聚乙烯基苯磺酸钠沉积生成layer-by-layer 自组装多层膜，紫外-可见光谱证实这是一个逐层均匀的沉积；在LPUV 照射下，自组装膜中的光敏双键按照偏振方向发生[2+2]环加成反应，形成取向膜，用二向色性值评价的分子取向度高于高分子及小分子光控取向膜的水平；实验证明用自组装多层膜制成的液晶器件亮暗态均匀，静态对比度约为100，达到实用化器件的水平。

ABSTRACT Electrochemical methods and holographic microphotography were used to investigate the anodic dissolution and potentiostatic current oscillations of iron, and reactivation of passivated iron in 0.5 mol.dm-3 H2SO4 solution in a weak magnetic field (B≤200 mT).

mag 加速了铁的阳极溶解［10］。利用相同的实验方法，陈俊明等还分别研究了工业纯铁在NaHCO3溶液［11］和不同浓度KCl的中性Na2SO4溶液［12］中的阳极溶解过程。

Electrochemical methods and holographic microphotography were used to investigate the anodic dissolution and potentiostatic current oscillations of iron, and reactivation of passivated iron in 0.5 mol.dm-3 H2SO4 solution in a weak magnetic field (B≤200 mT). The results showed that magnetic field affected the electrochemical process chiefly by accelerating the mass transport.

王超利用电化学和全息显微摄影技术研究弱磁场B≤200 mT）作用下，0.5 mol.dm-3H2SO4溶液中铁的阳极溶解、恒电位电流振荡以及钝化铁再活化等过程，并从电极/溶液界面现场显微动态观察的角度探讨了磁场对上述过程的影响。

Electrochemical methods and holographic microphotography were used to investigate the anodic dissolution and potentiostatic current oscillations of iron, and reactivation of passivated iron in 0.5 mol·dm-3H2SO4 solution in a weak magnetic field (B≤200mT). The results showed that magnetic field affected the electrochemical process chiefly by accelerating the mass transport.

利用电化学和一息显微摄影技术研究弱磁场（B≤200mT）作用下， 0.5mol·dm＾－3H2SO4溶液中铁的阳极溶解、恒电位电流振荡以及钝化铁再活化等过程，并从电极／溶液界面现场显微动态观察的角度探讨了磁场对上述过程的影响。

The nickelous chloride both may use in to galvanize, and is prepares the galvanization chemical thionamic acid nickel the important raw material, lead is affects the electronickelling quality a important attribute, in the present industry 331 ion exchange resin deleading effect still could not arrive in the electronickelling the lead content standard, used pocket weak basicity resin XSC312 after the screening experiment determination to take from the nickelous chloride solution intermediate ion exchange except the micro lead resin, inspected the material fluid pH value, the contact duration in the ionic exchange column to the ionic exchange adsorption lead influence, has determined the resin adsorption capacity and inspected the resin analysis performance.

氯化镍既可用于电镀，又是制备电镀化学品氨基磺酸镍的重要原料，其中的铅是影响电镀镍质量的一个重要因素，现行工业中的331离子交换树脂除铅效果尚不能到电镀镍中铅含量标准，经过筛选试验确定采用大孔弱碱性树脂XSC312作为从氯化镍溶液中离子交换除微量铅树脂，在离子交换柱中考察了料液pH值、接触时间对离子交换吸附铅的影响，测出了树脂的吸附容量并考察了树脂的解析性能。

We then add boundaries delineated forward/backward facing reflected shock, Mechanical equilibrium, M2=1 and reflected shock strong/weak separating conditions on the (M0,q1) map of shih(2004). This is followed by systematically investigating multiply possible three shock theoretical solutions of steady Mach reflections in perfect triatomic gases. Pressure-deflection shock polar solutions are used to help illustrate different solution behaviors of these theoretical three-shock solutions. M0 is flow Mach no. upstream of incident shock, M1 is flow Mach no. downstream of incident shock, M2 is flow Mach no. downstream of reflected shock,q1 is flow deflection downstream of incident shock.

随后本文由石(2004)论文中加入前后分界、机械平衡、M2=1及强弱分界条件，然后有系统地探讨三原子分子理想气体(r=1.2857 )稳态马赫反射参震波理论多重解之交点及其对应之压力-转折角震波极图解，并建构出此三原子分子理想气体稳态马赫反射流场三震波十阶多项式理论解於(Mo，q1)平面上之解域图，其中M0为入射震波上游流场马赫数，M1为入射震波下游流场马赫数，M2为入射震波下游流场马赫数，q1为入射震波下游流场转折角。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新