查询词典 natural selection

According to the present invention, there is eliminated the need for an additional mode selection terminal to selectively access the internal memory or an external extended memory, and further that mode selection can be achieved by a signal applied to a terminal already being used for other purposes.

根据本发明，有淘汰，我们需要一个额外的模式选择端，以有选择性地获取内部存储器或外部内存扩展，并进一步指出模式选择，可以取得的一个信号，适用于终端已被用来作其他用途。

Like reforming outside the system in our country,we research the economic development in the minority region outside the system,that is winding out the minority factor.after the latent capacity of extensive increasing gives play to,the minority factor becomes impassable furtherly in the economic development of minority region,because it can not solute the problem that how to mix the minority factor with the problem of the economic development in minority region,the academic circle sinks into the passive condition of application and countermeasure study,adapt to this learning dilemma,the minority region is at a late-developing stage,ignoring the minority factor imitating simply the development and industrial model of the developed region is a fairly universal selection of economic development, Adapt to the selection.,On the development policy in the minority region,A high premium comes to be placed on the tilting of the policy and helping of the economic things.

与我国体制外改革相类似，长期以来我们对民族地区的经济发展也是"体制外"及绕开民族因素进行的，这种发展模式在粗放增长的潜力得到发挥之后，民族因素成为民族地区经济进一步发展不可逾越的因素，由于无法解决如何融合民族因素和民族地区经济发展的问题，学术界陷入应用研究和对策研究的被动局面。

It is the first important step in video analysis and will directly affects the effectiveness of indexing Shot boundary detection is one of our major research interests and we will tackle the following existing problems the ambiguity between gradual change and camera motion, the discontinuity during gradual change, false detection caused by illumination variation and flashlight, automatic threshold selection Firstly, we discuss shot boundary detection in non-compressed domain In chapter 2, we compare some of the commonly used detection methods which are based on frame difference and point out that single feature will not generate good results As a conclusion, we use fuzzy logic to combine multiple features Presently, most frame difference based shot boundary detection algorithms rely on threshold and hence the selection of such thresholds will greatly affect the performance of boundary detection We propose a membership function to define frame difference and calculate the membership with self adaptation according to the statistic distribution of frame differences to satisfy different type of video clips Experiments show that the proposed fuzzy shot boundary detection algorithm can be used with different video types and has a high detection precision and recall In chapter 3, we discuss model-based shot boundary detection algorithms regarding chromatic and spatial editing effects such as fade-in, fade-out, dissolve and wipe Various parameters are proposed to better describe the characteristics of each editing type.

镜头边界的检测是把视频自动地分割为一个个镜头，作为基本的索引单元，因此它是视频分析重要的第一步，直接影响到视频检索的成败。镜头边界的检测是本文研究的重点之一。目前镜头边界检测算法主要存在以下问题：渐变与镜头运动难以区别；渐变过程中的不连续与停顿、光照条件的变化及闪光灯等特殊情况会引起误检测；自动选择阈值比较困难等。本文首先针对非压缩域视频进行了镜头边界检测的研究。在第二章中我们采用了比较流行的基于帧间差的方法。在比较各种帧间差计算方法的基础上，指出使用单一的特征难以取得很好的检测效果，提出用模糊逻辑综合使用各种特征。目前大多数基于帧间差的镜头边界检测算法都采用阈值法进行镜头转换的判别。阈值选择的误差对检测性能有较大的影响，本文提出用隶属度函数定义帧间差较大、中等较大和较小等概念，并根据帧间差的统计分布自适应地确定隶属度，以适应不同类型的视频片断。实验结果表明这种基于糊逻辑的镜头边界检测算法可以适应不同的视频，并具有较高的检测精度和检出率。在第三章中采用基于模型的方法进行镜头渐变的检测，研究了淡入／淡出、慢转换和扫换的模型。

Therefore, in the changing history of Chinese empire, blood ties, private relationship along with face could be deemed as filterable virus which hampers the fairness of official selection in every dynasty, and also trigger the occurrence of corruption unavoidably flourish in official selection.

因此，在中华帝国的历史更迭中，血缘以及由此推展开去的私人关系和"面子"是妨碍我国历代官员选拔公正性的痼疾，它像一种滤过性的病毒，使我国历朝历代的官员选拔无一例外地滋生弊端和腐败。

Established stochastic model for user strategy selections to study the game with finite population. According to the expectation utilities of user, produced invasion and fixation rates to quantify selection pressure during the repeated games. Finally, detailed the effects of population size on selection scenario under fixed utility matrix through example.

通过建立网格使用者策略选择的随机模型来分析有限网格群体的博弈，并利用期望效用生成选择过程的量化指标来判断使用者在反复博弈中策略选择的变化方向及其稳定性。

According to fire control standard,it introduces water supply for fire control of commercial building from selection of fire pump、 fire cock 、collocation of spraying systematical water pump and selection of fire rolling screen,which to perfect design of fire control.

按照现行消防规范要求，结合设计经验，从消防水泵的选用、消火栓、喷淋系统水泵的设置、防火卷帘的选用等方面介绍了商业建筑消防给水设计的几点看法，以使消防设计更加完善合理、灭火有效。

The thesis focuses on the circuit design and parameter selection, including the power circuit, control circuit and drive circuit of the front-end converter. Apart from that, for the load-end converter, the design and critical components selection of the traditional full-wave rectification and synchronous rectification are presented.

本文设计和确定电路的各种参数，包括前端变换器的功率电路、控制电路和驱动电路，对于负载变换器则给出了普通全波整流和同步整流的滤波器设计和一些关键器件的选择。

Selection and design of the lamp should form a specific combination of space, according to the function space requirements for selection and design.

灯具的选择与设计应该与具体的空间形式相结合，根据空间的功能要求来进行选择与设计。

First, the condition for electric-field intensity calculation with Gauss theorem and selection method for Gauss section; Second, condition for magnetic field with magnetic field loop law and selection method for loop.

本文要讨论两个问题：1 运用电场高斯定律求场强的条件和高斯面选取的方法；2 运用磁场环路定律求磁场H的条件和环路选取的方法，并通过举例说明它们的具体分析办

The design subjects include the selection and distribution of gear wheel, the design of spindle, and the guiding equipment and selection of the multiple spindle heads, etc.

因此本设计的重点是多轴箱的设计，设计内容包括齿轮分布与选用、轴的设计、多轴箱的选用、导向装置设计等。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。