种特征

In particular, the weighted feature value could be set by people sending the query request, and adjusted by relevant feedbacks.5. In order to improve the retrieval efficiency of CTFFBIR, a cluster-based sub—image classifying indexing algorithm of optimization has been developed.

4分析了单类视觉特征检索的不足，并根据高分辨率卫星与航空影像的光谱特点，提出一种融合颜色和纹理特征的遥感图像检索CTFFBIR新方法。

The "self studying " of the system in operation makes it continuously self-perfecting and more adaptive, then become a users system with the property of community, adaptive and easy use.

该系统基于面向对象特征技术及典型零件加工工艺路线模式化特点提出了一种cAPP系统工艺路线决策方法—面向对象特征的模板式工艺决策方法。

Analyze the characters and kinds of the structure and vertical sequence, identify four micro faces which related reservoirs: under water distributary channel, under water crevasse splay, mouth bar and sand sheet.

通过岩心观察对研究区砂体的构造特征和垂向序列特征进行了详细分类，并识别出水下分流河道、水下决口扇、河口坝和席状砂4种主要砂体成因微相。

In this paper, a kind of feature extraction method suitable for a variety of features (step edge, line, roof edge, Mach band etc) is presented.

摘 要：文中给出一种适应于图像多种特征(阶跃边缘，线条，屋脊边缘以及马赫带等)的特征提取方法。

This product is characterized bythe appearance of black beer as well as the taste of normal cola, and is thus a brand - new product between beer and cola.

该产品既具有黑啤酒的外观特征又具有普通可乐的口感特征，是一种介于啤酒和可乐之间的新产品。

In this study, two models to fit soil three-variable characteristic surfaces of different soils were proposed based on the Brooks-Corey soil water retention curve model. Advantages, disadvantages and application conditions of the two were illuminated. In addition, soil three-variable surfaces measured for packed soil samples through centrifuging and controlling bulk density using paraffin material were used to verify the proposed models.

本文在Brooks-Corey土壤水分特征曲线模型的基础上，提出了两种描述土壤质量含水量、吸力和容重三变量关系的曲面模型，分析了模型的优缺点和适用条件，并采用离心机石蜡控容重法实测了四种质地填装土壤的三变量特征曲面。

The result of analysis showed that the relative characteristic absorption intensity of protein, fat and carbohydrate was different in the different part of corn seed.

实验表明，不同部位蛋白质、脂类和碳水化合物的特征吸收峰的相对强弱是不同的。玉米种子的胚中这3种物质的特征吸收峰强度较为均匀，差别不大。

In this thesis, the experimental investigations, theoretical analysis and numerical simulations are carried out to study the detonation characteristics of fuel-air mixtures, explosion suppressions and venting. The relevant parameters of heterogeneous detonations, explosion suppression and venting are obtained experimentally, and the mechanism is revealed.

本文以几种常见液态碳氢燃料云雾为重点，从实验测试、理论分析和数值计算三个方面对燃料云雾爆轰性能、云雾爆炸的抑制与泄放过程进行了系统深入的研究，基本揭示了云雾多相爆轰结构特征和作用机理，获得了有关云雾爆炸抑制及泄放的相关特征参数和变化规律，为控制或减缓工业爆炸灾害的作用程度和范围提供了重要的技术思路和途径。

Firstly, on the basis of defining the characteristics of project and reviewing the mathematical models for RCPSP, we constructed the mathematical model for RCPSP under the condition that there is non-fixed duration and splittable tasks in project; In order to solve above model, we emphatically discussed the basic principle of the swarm intelligence algorithm--the particle swarm optimization algorithm as well as improvement research for current algorithm, and then proposed a new improved particle swarm optimization algorithm and analyzed its application process in the resource-constrained project scheduling problem; Lastly, in order to confirm the validity of the model and the algorithm, we took an experiment based on 108 instances that produced by problem instance generator which was developed by our team.

首先，在对RCPSP项目特征进行界定以及对项目进度优化模型回顾的基础之上，构建了基于活动工期不固定、任务可拆分特征的RCPSP的数学模型；为了求解上述模型，本文详细阐述粒子群优化算法(Particle Swarm Optimization，PSO)的基本原理以及当前对其改进的研究成果，提出了一种新的改进PSO算法，并对其在RCPSP的应用过程进行了设计；最后，为了检验模型的有效性及算法的优越性，基于梯队内部开发的案例生成器生成的108个算例，进行了仿真试验。

ON MEANING,FEATURE AND METHOD OF COMPARATIVE MATHEMATICS EDUCATION

通过对比较数学教育学的意义、特征和方法的探讨，指出了比较数学教育学的三个特征和进行比较数学教育学研究的四种方法。

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！