查询词典 abstraction

Abstraction degree; abstraction relation degree; semi-kernel; absolute geometry

基础科学，数学，数学概论抽象度；抽象关系度；半核；绝对几何

Based on applying domain color, cylindrical distance and connectivity analysis to divide fields, static image features are presented for feature abstraction, such as color, texture, etc. it's also proposed dynamic video features to solve feature abstraction, which are based on applying the method of block motion estimation to build the field of video shot motion, such as motion texture, etc.

针对特征提取问题，本文在用主颜色、圆柱距离以及连通分析的方法实现比赛场地分割的基础上，提取了颜色、纹理等一组静态图像特征；在使用块运动估计方法建立视频镜头运动场的基础上，提取了运动纹理等一组动态视频特征。

Therefore, in order to study pharmacology of astragali, atractylodes macrocephala and licorice root active component infurther step, search for reasonable extraction technology of effective parts, develop safe and reliable,exact curative effect new drug for treating UC fit to clinic, we plan to use advanced colon-target andadhesion releasing technology to make up complex prescription colon-target capsule preparation ofabove-mentioned three effective parts. This will have important significance for developing new drugstudy on treating UC with TCM.Study method1. pharmaceutical research1.1 study on extraction and abstraction technology of Astragalus mongholicus saponinAdopt ethanol backstreaming to extract Astragalus mongholicus saponin, compare extraction percentage of different concentration ethanol. Adopt resin adsorptive process to depurate it, inspect resin dynamic adsorption curve, sample size, concentration and dosage of eluting ethanol and concentration of eluting lye and so on technology parameter. Determine the best extraction and abstraction technology.

目前国内外未见有治疗该病的中药有效部位的复方制剂，因此，为进一步研究黄芪、白术和甘草有效成分的药理学作用，探索合理的有效部位提取工艺，开发适合于临床的安全可靠，疗效确切的治疗UC的中药新药，我们拟采用先进的结肠靶向定位及黏附释药技术，将黄芪、白术和甘草的上述三类有效部位制成复方结肠溶胶囊制剂，对于开展中医药治疗溃疡性结肠炎的新药研究具有重要意义。

The film or movie is the most popular and common video resource. In this paper we use the film video as an example, aims to implement real-time retrieve of explosion and shot scenes, has carried on the following research mainly: first, we proposed a method of real-time recognition of explosions based on dominate-color and audio information and improved the accuracy the retrieve;second, we proposed a method of real-time retrieve of shots scenes based on audio information and differences between frames when the shot occurs;third,a whole video abstraction system is proposed, it can cut off the clips which have been retrieved and merge them into a independent video abstraction in the same time edit the information of the it ;forth, it offers two-level retrieval structure of"key frame-highlights"and can play segmentation result and the whole video just like a video player.

电影或电视剧视频是人们日常生活中最喜闻乐见也是最常见的视频内容，本课题以此类视频为研究素材，目的是实现实时爆炸和枪击场景的检测，主要进行了以下几个方面的研究：1针对视频中爆炸场景的主色和音频特点，提出了一种基于声像特征的实时爆炸场景检测算法；2捕捉视频中枪击事件瞬间的帧间变化信息和相应音频信息，提出了一种基于声像特征的实时枪击场景检测算法；3从原始视频中切割检索到的精彩视频场景合并成单独精彩缩略视频，并可进行相关信息编辑，形成比较完备的视频摘要系统；4形成关键帧-精彩视频场景的二级浏览结构，可对分割结果或整个视频片断进行播放，基本实现播放器的功能。

That is to say, he opposed artistic autonomy and abstraction, and started the advancement of figuration vs abstraction.

也就是说，他反对艺术的自律和抽象化，并开始了以具象的形式对抗抽象的形式的进程。

Now the company has capsule, beverage, oral liquid, hygienical wine, Chinese medicine abstraction and vegetable abstraction assembly lines.

项目内容：本项目为改建项目，占地14960平方米，建筑面积5166平方米，拟充分利用阳城当地丰富的桑椹资源和公司原有生产设施，采用先进的生产工艺，制成灌装桑果紫酒。

The results of in situ DRIFTS on propylene oxidation show that the allyl species originated from α-H abstraction of propylene were located at the wavenumbers of 1454 cm~(-1) and 1427 cm~(-1). The rate-determining step is the abstraction of an α-H abstraction from a lattice oxygen linked to a bismuth ion to form a π-allyl intermediate coordinated to a molybdenum ion. The metal-oxo group then attacks the allyl intermediate forming a σ-bonded oxygen-allyl species, which is in a rapid equilibrium with the π- bonded species. The σ-bonded species then transforms to acrolein by further abstraction of α-H. Such species as formate, carboxylate, carbonate transform to deep oxidation products. The acetone was derived from propylene by an enolic species at lower temperatures.

丙烯氧化反应体系的原位漫反射红外光谱研究结果表明，由丙烯脱氢生成的烯丙基中间物种吸收峰在1454cm~(-1)和1427cm~(-1)处；基于此提出了较完整的丙烯氧化反应网络：丙烯选择氧化生成丙烯醛主要经历丙烯脱除甲基上的一个H，生成烯丙基物种，该物种嵌氧生成σ-O络合物，脱氢得到丙烯醛前驱体，脱附生成丙烯醛；完全氧化产物是由催化剂表面上生成甲酸盐、羧酸盐、碳酸盐等形式的中间物种转化而成；较低反应温度下丙烯氧化生成丙酮，通过烯醇式中间物种氧化生成丙酮前驱体得到。

The authors extended the representing framework Rof the KRA model so as to divide the perception into primary perception and abstraction perception. In the process of primary perception,Wunder the primary perception system P is mapped as P where the attributes of the objects in Wdo not change. In the process of abstraction perception, Wunder the abstraction perception system P* is mapped as P*. The objects in P*are abstraction objects, the types of which are related to the abstraction objects database predefined by the agent.

针对KRA抽象模型的表示框架进行扩展，将感知过程分解为初步感知过程和抽象感知过程两部分：初步感知过程将该模型提供的一个框架R表示世界W在初步感知系统P的作用下映射为P，该过程不改变W中具体对象的实体属性；抽象感知过程将P在感知系统P*的作用下映射为P*， P*中的对象称为抽象对象，抽象对象的类型根据感知者预先定义的抽象对象库Oa的不同而不同。

Multiple-paths hydrogen abstraction reactions of fluorine -with CH_3OH have been investigated at the MP2/6-311 ++ g level. The potential energy surfaces for H-abstraction reaction from carbon atom and oxygen atom were given respectively. The results indicate that there is only one minimum energy path for hydrogen abstraction from carbon atom, while multiple paths were found for hydrogen abstraction from oxygen atom. All the stationary structures, frequencies as well as PES sketch of all channels were given, in which the dominant channel is by a five-member ring transition state. The calculated heat of reaction is 170.62 kj/mol for channel 1, 119.41 kJ/ mol for branch channel 6. The results are in good agreement with experimental data.

以MP2/6-311 ++g水平上详细研究了氟原子与甲醇抽氢反应的多通道反应机理，得到了各条通道中涉及的驻点的构型和振动频率及其能量，给出了两张完整的反应势能面，结果表明，氟原子从C原子上抽氢时有一条明显的最低能量通道，而从氧原子上抽氢时要涉及多条分支通道和多个驻点构型，给出了各分支通道势能面示意图，结果表明以形成五元环状过渡态通道为优势通道，计算得到经途径1生成CH_2OH时反应放热170.62kJ/mol，经分支途径6生成CH_3O自由基时反应放热119.4 kJ/mol，此结果与实验值一致。

We generally divide abstraction into two categories, namely, cold abstraction represented by Malevich and Mondrian and hot abstraction represented by Pollock and De Kooning. Both of them adopt a positive expression_r_r.

我们一般将抽象分为两类，即以马列维奇和蒙德里安为代表的冷抽象，以波洛克和德库宁为代表的热抽象，这两种抽象都采取了肯定的表现方式。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！