So optimum content is one of the highlight research jobs . before authors only did experiments according to experiences and then gave some qualitative explanations . there were never quantitative calculations reported 长期以来，人们一直认为最佳掺杂含量问题十分复杂，很难用理论来计算最佳掺杂含量，所以没有用理论来计算最佳掺杂含量的研究报道。
On the basis of the combination of the dynamic reliability theory and " ideal critical structure " , a quantitative calculation method is presented which can turn the rating of structural reliability from qualitative analysis to quantitative calculation 二、本文将动态可靠度理论与“理想临界结构”结合起来，提出了结构可靠性等级评定的定量计算方法。
In the mean time , this paper put forward concrete program improvement . during reseaching , quantitative analysis and quantitative calculation were used to reseach theory and analyze questions . the train of thought was distinct and can be operated easily 在研究的过程中，采取定性分析、定量计算相结合的方法，进行理论研究、状态分析，力求做到思路清晰、可操作性强。
By quantitative calculation and analysis , this article will discuss the application in power plant of a new kind pipe - double sides micro - finned heat transfer enhancing tube , which is widely used in research due to its high heat transfer coefficient 双侧微肋强化换热管是一种新型换热管，由于其高换热系数得到广泛研究与应用，但对于换热面较多的热电厂来说应用还未见有报道。
In this technology , we draw the welding seam in the picture first , strengthen the welding seam , draw and appear defect of welding seam and at last carry on the defect to grade according to the result of quantitative calculation to defect 该技术的实现是先提取图像中的焊缝，再对焊缝进行增强，提取出焊缝中的缺陷，最后对提取出的缺陷进行定量计算，根据计算结果进行缺陷分级。
Based on sequential simulation and integrated assessment to power system security , cause , property , duration , result are detailed analyzed to present a new and feasible state framework and it ' s quantitative calculation method 基于序贯仿真算法和概率综合评估模型，具体分析了电力系统各种运行状态的原因、后果、持续时间，提出了新的、柔性的状态定义框架及状态指标的量化计算分析方法。
It can serve for synchronous spinning reserve , load following , frequency control and synchronous condenser operation . due to the difficulty of quantitative calculation , the typical cases on dynamic function of pumped storage plant are qualitatively analyzed in this paper 抽水蓄能电站具有运行灵活、启动迅速的特点，其在电力系统的动”态效益主要表现在紧急事故备用、负荷跟踪、调频和同步调相上。
But in the current magneto - optical theory , there is some difficulty to calculate it in detail , for the complex microscopic structure of er3 + ion and the high magnetic field up to 300koe . so to date , the quantitative calculation by quantum theory has not been seen 但在现行的理论中，由于重稀土er ~ ( 3 + )离子复杂的微观结构，以及实验上外磁场高达300koe ，这些都给理论研究造成了一定的难度，所以迄今为止尚未见到对其详细的量子理论的定量计算研究报道。
According to hierarchical framework of human error causal factors , relativity analysis method in grey systems theory , human factor events in certain organization and root cause analysis , the results by quantitative calculation are obtained as following : the order of main factors causing human error is organizational factor , personal factor , technical factor and environmental factor 根据建立的人误原因因素层次架构，运用灰色系统理论中的关联分析方法，结合某组织近几年发生的人因事件及根原因分析方法，定量分析计算得到：影响人误的主因素次序为组织、个人、技术和环境因素；影响人误的主要子因素为管理控制因素。
