查询词典 classification

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的&同物异谱&现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被&红边&范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

The classification accuracy is approximatively the same in the test plots under identical classification conditions of the differential images.

相同判释标准探讨测试区差值影像分类结果；全体精度差异很小，但水稻生长期些许差异及地籍界线与丘块不吻合处，区块式分类法会降低分类准确性。

Furthermore, some ideas on the revision of bamboo taxanomy were proposed:(1) The classification of bamboo should be based on rhizomatous characteristics with more detailed examinations,(2) Information of molecular evolutionary and culm can be used partially in the revision of genus Arundinaria, and (3) Mathematical methods should be utilized in bamboo classification towards rhizomatous characteristics, culm types and branch number.

3建议在竹类植物分类中采用数学分析方法区分地下茎、秆高、分枝等呈连续变异的性状。

All evidences from both phenetic classification and cladistic classification demonstrated that the matsutake group is a polyphyletic group and Tricholoma nauseosum, T. matsutake and T. matsutake var. formosa come from one line of descent; T. focale, T. robustum and T. fulvocastaneum are closely related; T. zelleri, T. aurantium, T. caligatum var. nardosmia formed a clade. The result also suggested Dollo parsimony criterion was more suitable for phylogenetic reconstruction of the matsutake group based on morphological characters than the other two criterions.

在数量分类学研究中，通过表征分类和支序分类的研究得出结论如下：松口蘑群是一个多系群，北欧口蘑、松口蘑(T.matsutake)和松口蘑台湾变种(T.matsutake var.formosana)比较接近，羽衣口蘑、粗壮口蘑和黄褐口蘑(T.fulvocastaneum)也比较接近，泽氏口蘑、金黄口蘑(T.aurantium)和欧洲口蘑松香味变种(T.caligatum var.nardosmia)来自一个谱系。

English Outline Describes the classification and characteristics of biochemical reactions, major metabolic pathways; biochemical thermodynamics, biokinetics, immobilization technology, bioreactor construction, experimental design, mass transfer, heat transfer, and flow pattern; mathematical modeling, computer simulation, and optimization; the classification of reactors, aerobic and anaerobic, their operational characteristics and applications.

Chinese Outline 探讨生物化学反应种类及其特性，主要代谢路径；生物热力学、生物动力学、酵素特性探讨与酵素动力学，固定化技术、生物反应器之组装、实验设计、反应器内质传、热传及流动型态解析；数学模式，电脑模拟及最适化；简介反应器种类：好氧及厌氧反应器，其操作特性与应用。

Radiologic examination was categorized using Bosniak s classification. Histopathologic examination was categorized using Hartman s classification.

影像学采用Bosniak分类，病理发生学采用Hartman分型。11例行根治性肾切除术，1例行肾部分切除术。

It is inportant to understand the limitations of rock mass classification schemes（Palmstrom and Broch,2006）and that their use does notreplace some of the more elaborate design procedures.However,the use of these design procedures requires access to relatively detailed information on in situ stresses,rock mass properties and planned excavation sequence,none of which may be available at an early stage in the project.As this information becomes available,the use of the rock mass classification schemes should be updated and used in conjunction with site specfic analyses.

最重要的是理解的限制(Palmstrom岩体划分方案及Broch，2006年)，他们的使用不部分的取代更多精心设计的程序然而，使用这些设计程序需要获得相对的详细资料，对原位应力、围岩特性和计划挖掘序列中，所有这些都是极有可能在早期的工程这个信息，利用岩体的分类方案应更新，并结合现场应用光学分析。

By means of three years investigation of peach-blossom cultivars found in Beijing, and based on the classification system of flower culti-vars presented by professor Chen Junyu, the author uses the branching habit as the first classification criterion, flower-form as the second criterion, and flower-color, number of petals and calyces as the third criterion.

作者在北京市桃花品种调查的基础上，以枝姿作为第一级分类标准；以花型作为第二级分类标准；以花色、花瓣数、花萼数等作为第三级分类标准。并将花瓣5枚的定为单瓣；花瓣10—40枚的定为复瓣；40枚以上的定为重瓣。

The standard method of using bti was established.5. Chironomus was given a classification by molecular classification.

在供水系统中首次引入生物制剂来防治红虫，建立了利用bti粉剂防治红虫的标准化方法。

In order to improve the classification accuracy of mental EEG, the rhythm assimilation effect of EEG was used in the study of mental task classification firstly in this dissertation. A series of experiments schemes, which try to make different types of mental EEG carried with different and classifiable rhythm assimilation information, were projected and the rhythm assimilation phenomenon of different type mental EEG was explored detailedly.

本文首次将脑电的节律同化效应应用于思维作业的分类研究中，对思维脑电信号的节律同化现象进行了比较深入的探讨，试图通过不同的节律同化实现方案，使不同思维作业EEG信号携带有不同的、易于分类的节律同化信息，以提高思维作业EEG信号的分类正确率。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。