查询词典 value analysis

It is just for the above reasons, statistical theory and simulated mathematical models, such as fuzzy mathematics, grey system theory, analytic hierarchy process, set pair analysis as well as the remote-sensing technology of geographic information systems are more and more emphasized so as to heighten the scientific value of such assessments.

综述了最近几年环境评价中应用较广或新出现的综合评价方法及其在环境评价中的应用，重点介绍了模糊数学方法、灰色系统理论、层次分析法和集对分析等数学模型评价方法，以及地理信息系统技术的原理和有关应用。

Described the design of supercritical fluid extraction principles; combination of star anise essential oil of the nature of the proposed extraction conditions for extracting pressure 15MPa, extraction temperature 40 ℃, CO2 flow rate 830 ~ 850L / h, extraction time of 2h, the extraction conditions selected temperature swing separation, further development of the star anise crushed, CO2 super-critical phase transition, extraction, separation and packaging processes; in determining the production process on the basis of material balance, heat balance, extractor size calculation, piping calculation and packaging process is calculated; for the pollution occurred during the production, analysis of pollution sources, pollution control and waste treatment proposed measures; accounting of production costs and value.

本设计阐述了超临界流体萃取技术的原理；结合八角精油的性质，提出萃取条件为萃取压力15MPa，萃取温度40℃，CO2流量830～850L/h，萃取时间2h，根据萃取条件选用变温变压的分离方式，进一步制定了八角粉碎、CO2超临界相变、萃取、分离和包装等工序；在确定的生产工艺流程的基础上进行物料衡算、热量衡算、萃取釜尺寸计算、管路计算和包装工序计算；针对生产过程中出现的污染，分析污染的来源，提出控制污染和废料处理的措施；核算生产的成本和价值。

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。

The algorithm employs low-level spatio-temporal signal processing and the segmentation is based on the analysis of apparent motion, inter-frame pixel value changes, edges, and textural homogeneity of image regions.

该演算法使用低层级的时空信号处理，透过分析画面中所呈现的运动、昼面问像素值的变化、边缘资讯、及影像区域中纹理的一致性，来进行分割。

While compared with the vocal pieces of other composers in the same period of time, with all-sided analysis from the topic, the structure, the melody and the music element of S.C.Foster's vocal pieces, the article clearly shows the most prominent character of his songs —"approachability" and the important value of Foster in the development of American music and the history of human being.

本文通过对福斯特歌曲作品的创作题材、形态结构、乐汇来源等多角度的分析与阐释，使读者对福斯特歌曲作品在同时代其他声乐作品中体现出的"亲和力"的这一特征有一个全方位的、较为清晰的认识；并在对这些作品进行细致分析研究后指出，福斯特及其歌曲作品不仅在美国本土音乐文化发展史上有着重要历史地位，还因为歌曲作品本身所具备的对时空的超越性，即歌曲中饱满蕴含的人性和爱这一人类永恒的主题，而成为全人类共有的精神财富。

Analysis suggests that errors are mainly caused by approximate computation and the value of contacted resistance adopted.

误差产生的主要原因是计算过程中的近似和短路片接触电阻的取值，其中短路片接触电阻是一个重要因素，在设计腔体时应引起足够的重视。

Value investing treats security analysis as a purely arithmetical field of study.

价值投资对待安全分析作为一个纯粹的数学研究领域。

Based on the analysis, the paper makes use of the option-game theory to establish the different value model, including the time ascertainable and the time uncertain of new technology coming, and then analyzes the strategy of two enterprises.

在此基础上区别于以往的研究，本文综合引入了竞争、成本差异、新技术到来时间不确定及利润流等因素，建立了竞争环境下两家企业技术采纳行为的期权博弈模型，并进行数值分析与讨论。

By regression analysis of the obtained data, a relationship has been found between the bath depth and ingot height, which can be expressed by an exponential function, h(0,Y)=A e-B/Y, where A is the asymptotic value of the exponential function (when Y→∞hmax=A), B is a shape coefficient of the curve.

通过对已得数据的回归处理，找出了熔池深度h及锭高Y间的相关规律，得到h_(0，Y)=A·e_的指数函数关系，A是指数方程的渐近线，当Y+∞时h_(max=A是曲线形状系数。A和B均为重熔电流的函数，A=f_1，B=f_2，所以，h_(0，Y)=f_3。

To avoid or reduce re-analysis, we derived the augmentative matrix variation only in summation of the previous matrices time the outside-perturbed parameters by decomposing the element stiffness and mass matrix. The implicit function of amplitude about design variables such as cross-areas and lengths is changed into simplistic function about the perturbed parameters of design variables. Several methods for determining the value of perturbed parameters are detailed.

为避免或减少重分析，将有限元单元阵进行了分解变换组装，使振幅与设计变量如截面面积、长度的复杂隐函数关系转化为对设计变量摄动参数的显式关系，进而将设计变量摄动参数提取在分解后的几个常数刚度阵、质量阵之外，避免了在迭代求解过程中重组刚度阵与质量阵，较快地获得问题的解。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。