查询词典 DLS

Aimed to two major problems: one is not decidable and the other is no clear semantics. We construct a framework with explicit representation and formal semantics of goalsgoal description logics, which integrates two types of goals: declarative goals and procedural goals into one concept based on description logics. In addition, the goal plan is defined and analyzed, and some reasoning problems, such as goal consistency and goal satisfiability, are discussed. Contrary to traditional ways of goal description, GDLs can bridge the gap between theory and practice in a natural way.

针对传统的目标描述中存在的不可判定性以及没有清晰的语义等问题，在描述逻辑(description logics，DLs)上，将宣称型和过程型2种类型的目标描述有机地整合在一起，从而构建了具有清晰语义与可判定性的形式化框架--目标描述逻辑(goal description logics， GDLs)，在此基础上，定义了该框架下有关规划规则；建立了可用于判定目标一致性、目标可满足性的方法，与传统的目标描述方法相比，目标描述逻辑为主体领域模型提供了一种更有力的形式化工具，同时为智能主体的模型和设计提供了很好的理论工具。

In this study, Chitosan-Poly complex nanoparticles were prepared by template polymerization of acrylic acid in the chitosan solution. The preparation and characterization of CS-PAA nanoparticles including the yields of the nanoparticles, FT-IR spectrum analysis, dynamic light scattering, zeta potential, and morphology of nanoparticles were concentrated in this study. The effects of temperature, weight ratio of CS and PAA, and pH value on the physicochemical properties of nanoparticles were studied.

本研究中，我们以模板聚合法在几丁聚醣（Chitosan， CS）溶液中聚合丙烯酸（Acrylicacid， AA）以制备几丁聚醣－聚丙烯酸复合奈米颗粒并计算其产率，再以傅利叶红外线光谱仪、动态光散射粒径分析仪（Dynamic light scattering， DLS）、表面电位测定仪及穿透式电子显微镜等仪器分析CS－PAA 复合奈米颗粒之性质，以探讨聚合时温度、聚合反应时间、CS 与AA 之重量比，以及介质pH 值对CS－PAA 复合奈米颗粒结构的影响。

Chain aggregation into polymeric micelles inaqueous solutions was observed by ~1H NMR, and the morphologie and size of themicelle was also studied by TEM and DLS.

以线性或星形PDMAEMA同时作为稳定剂和还原剂，水为溶剂，在室温下合成了分散性很好、尺寸均匀的银纳米粒子。

When the solution was heated to the temperature above the LCST, hydrogen-bonding interactions between the water molecules and the PEGMA segments on the surface of the micelles were destroyed and the multimolecular micelles joined together to form the even larger aggregates driven by the increasing intermicellar hydrophobic interaction.

通过UV-Vis和DLS研究发现，温度升至LCST时，胶束表面的亲水基团与水分子间的氢键作用被破坏，疏水基团相互作用加强，大胶束与大胶束缔合形成更大的聚集体，发生温度响应行为。

The total of identified compounds is 102, which mainly terpene compounds and oxygenated derivatives in the compounds.the more contens are-α-Farnesene(7.62%),Valencene(7.51%),γ-Terpinene(6.56%),β-Patchoulene(5.61%), Selina-6-en-4-ol(5.57%), and so on.

结果表明，益智居群的遗传变异主要来自于居群内，7个益智居群的演化关系为：GD→WZS→QXL→MG→BC→DLS→BZL；海南益智居群中，WZS居群出现的时间较早。

In the end, the synthesis condition and influential factors of PU-titania (TiO2) process, such as manufacturing sol (including the amount of water, the amount of PU/Titanium butyrate, the concentration of the solution, the pH value, the kind of alcohol), aging process, theoretical analysis of the dipping process, dry and heat treatment of the gelation, were also discussed especially. FT-IR、SEM、TEM、DLS techniques were applied to analyze and study the reaction mechanism and watch the surface and section of the PU-TiO2 membrane. According to above, it was inferred that PU-TiO2 membrane (containing K600) was better composite.

本文采用原位合成法制备了聚氨酯-二氧化钛水分散复合体，并着重对影响制备稳定透明的复合体的因素（包括加水量、醇的加入量、pH值、聚氨酯/钛酸四丁酯投入量、醇种类）进行讨论，利用红外光谱技术分析聚氨酯-二氧化钛分散复合体的结构，动态光散射技术与扫描电镜分别表征复合分散体的粒径大小与分布及复合膜的表面形态，结果显示含K600的聚氨酯-二氧化钛体系复合情况良好。

According to the results of DLS and cryo-TEM, the decreasing region from start to the minimum is just that of from vesicle formation to monodisperse state, which implies the formation of vesicle inhibits the self-oxidation.

结合光散射、电镜等实验结果，可以发现在复配体系中，邻苯三酚的自氧化速率从开始降低到达到最低点的这一区域正好是囊泡形成的区域，这说明是囊泡的形成抑制了邻苯三酚的自氧化。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷