查询词典 qualitative analysis

According to the change of the enemy\'s quantity and the qualitative theory of the differential equation, we research the spruce aphides and its predator system. At the same time, we discussion the spruce aphid multiplication model when the natural enemy quantity is a certain value and the periodic oscillating model whose the quantity of the natural enemy changes along with the time. Obtains the stability condition of the balance point and the limit-cycle existing condition, the system presents the dissipative structure\'s character. Finally it explains that this theoretical analysis has certain practical significance regarding the preventing and controlling harmful insect.

第五章，松毛虫与其天敌的关系是食饵和捕食者的关系，根据天敌数量的变化，利用微分方程定性理论，研究松毛虫与天敌系统，讨论天敌数量为一定时的松毛虫增殖模型和天敌数量随时间变化的周期振荡模型，得到正平衡点全局稳定性和极限环的存在条件，通过计算机模拟，说明周期振荡的捕食模型能够呈现典型的时间耗散结构特征，对于防治害虫有一定的实际意义。

According to the principles of economics and marketing ,this paper takes a qualitative and quantitative analysis to the major factors that affected market demand and supply of bamboo shoot products in Linan,Zhejiang Province.

以浙江省临安市为例，运用西方经济学、市场学的原理和方法，对影响竹笋产品市场供求的主要因素进行了深入的定性和定量分析。

Use GIS technology for mineral forecast is a new technology, it is forecast to provide an important qualitative data preparation and analysis of the space base.

运用GIS技术进行矿产预测是一项新技术，它为定性预测提供重要数据准备和空间分析的基础。

The quality of commercial Mei-Gin products are different from each other XVI and shows unsatisfied results. however, In future, possibly, HMF can be applied as a bioactive standard marker for quality control of Mei-Gin. Based on the qualitative and quantitative analysis of HMF, we can establish the model of quality control, and find out facilitative, efficient, and representative chemical fingerprint for commercial Mei-Gin products. Standardizng the Mei-Gin product from the same procedure will bestead the market of plum in Taiwan. Not only advancing the economic value of plum, but also accelerating the competitiveness in marketplace. Establishent of quality control model with HMF as a bioactive standard marker will be crucial issue in the future.

目前在台湾，梅产品还没有一个可以判断品质优的标准，市面上的产品品质也是差齐，在品质管制方面一直无法获得人满意的成果，透过HMF 的定性定分析，可确初步品质管制的模式，为梅产品订出一个简有效且具代表性的化学指纹图，使所有同一产程的产品一致化以及标准化，这将对於梅子产业有相当大的助，仅可以提升梅子的经济价值，并且增加在市场上的竞争，因此用HMF 作为Bioactive standard marker，并且为梅产品建起品质管制模式在未将会是相当重要的研究之一。

Inferential analysis as qualitative methodology: case studies in biographic research.

质性方法中参照推论分析—传记研究之案例分析。应用心理研究，第12期，25-48。

With the analysis and research of the supply chain performance measurement index system of domestic and international at present, this paper constructs the whole supply chain performance measurement index system, from internal of node, between the nodes and the whole supply chain performance measurement three aspects.And then, gives quantitative formulas of quantitative and qualitative.

本文在总结国内外相关研究成果的基础上，首先从供应链节点企业内部的绩效评价、节点之间的绩效评价和供应链整体绩效评价三个方面，构建供应链总体的绩效评价指标体系，并给出相关定量指标和定性指标的量化公式。

In the chromatograph analysis, it usually comes through the retention time for the material qualitative investigation.

在色谱分析中，通常通过保留时间来为物质定性研究。

Based on the analysis of the features of virtual design, such as the combinations of quantitative design and qualitative design, parallel and serial design, green manufacturing-oriented design, the closed loop architecture of virtual design system, including the iterative steps of converse engineering and digital modeling, physical prototyping, physical testing, is proposed.

本文在分析机械产品虚拟设计定性与定量相结合、串行与并行相结合、面向绿色制造的设计等主要特征的基础上，构造了一个包含反求工程与数字化建模、物理原型、物理测试等环节在内的机械产品虚拟设计可迭代框架，并以鼠标外模的虚拟设计过程为例对这一框架进行了详细说明。

The paper introduces the qualitative, quantificational analysis and calculation of the of load capacity and stiffness for contrapositive hydrostatic pocket of hydrostatic slide in precision and ultraprecision machine, and brings forward the method of optimization calculation.

对应用于精密加工和超精密加工机床中的液体静压导轨的承载能力和刚度进行了定性和定量分析计算，并提出对其优化的方法。

Firstly, Some of the basic concepts of chaotic vibration are introduced, the qualitative and quantitative methods of chaotic vibration identification are detailed, the selection of associated parameters is studied, the algorithms for calculating the maximum Lyapunov exponent, correlation dimension and periodicity ratio are provided. On the basis of analysis and comparison of different methods, the methods used in the paper are selected.

本文首先介绍了混沌振动的基本概念；评述了混沌振动识别的定性和定量方法；对有关参数的选择进行了研究；给出了计算最大Lyapunov指数、相关维数和周期比的算法；在对不同方法对比分析的基础上，选出了本文拟采用的识别方法。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。