查询词典 quantitative method

In order to select optimal grid and good computation efficiency to recover the entire signal, aiming at the Ricker wavelet commonly used in forward modeling, we analyzed the alias and signal restoration problem in finite-difference method based on spatial sampling theorem and seismic wave traveling regulation in media with different velocity, to derive quantitative relationship among the modeling grid size, minimum velocity of model layer, and recovered main frequency of wavelet.

为了选择最佳的网格尺寸以及以最小的计算量完整地恢复出信号，针对地震波场正演模拟中经常使用的Ricker子波，根据空间采样定理和地震波在不同速度介质中的传播规律，分析了有限差分算法中的假频和信号恢复问题，推导出模拟网格尺寸、模型地层的最小速度和能够恢复的子波主频之间的近似定量关系，并用数值算例验证了这一关系。

The method was applied for quantitative analysis of Semicarbazide.

ng/g，回收率为70.55-100.56%，可用于肌肉中氨基脲残留的检测。

The method is simple, rapid and highly accurate and precise. It can be used for the quantitative determination of quercetinin Sorbaria sorbifolia.

测定方法简便快捷、精密度高、准确性好，可以作为珍珠梅中黄酮的测定方法，以控制其原料的质量。

A scientific and comprehensive method was proposed for quantitative analysis of spalling degree from its mechanism.

例如，英法海底隧道发生的火灾造成隧道内表面高强混凝土爆裂，造成了隧道大面积的受损区域。

Therefore, it can be regarded as a great improvement of the investment decision-making theory and methods .This article makes a systematic research on real options theory and method and its application, including the following several main aspects:Firstly, it makes a detailed discussion about the common theoretical basis of financial options and real options, including no-arbitrage equilibrium principle, risk-neutral definition, complete market and dynamic tracking.Secondly, it analyze three basic characteristic of investment decision-making in modern market economic system: irreversibility, uncertainty and flexibility, and from the angle of their mutual quantitative and qualitative interactions, it makes a comparison between the traditional NPV methods and real options methods and makes a summary of the general analytical methods of real options.Thirdly, it discusses the all elements in the application of real options such as the ^leakages in value of real assets, basis risk, and private risk, and furthermore, it attempts to put forth a normalized strategy of its application and construct a basic framework of its application.Fourthly, it applies real options theory to strategetic investment of enterprises and the buy-out of company, putting forth a value model for strategetic investment program and making a concrete analysis of its application to buy-out. Furthermore, it advocates that a flexible investment decision-making system should be setup according to real options theory in our country.

本文对实物期权理论和方法及其应用进行了系统研究，主要内容包括如下几个方面：(1)详细讨论了金融期权和实物期权共同的理论基础，主要包括无套利均衡原理、风险中性定义、完全市场以及动态复制方法，对这些理论方法的探讨既是本文的出发点和基础，它们提供了研究实际应用实物期权的一个基准点，也是贯穿全文的线索和灵魂；(2)分析了现代市场经济体系中投资决策的三个基本特征即不可逆性、不确定性和时机选择，并从它们数量上和质量上相互作用的重要意义的角度，分析了传统的净现值法与实物期权方法的差异，指出了净现值法在不确定环境中存在的缺陷及实物期权处理投资灵活性的价值，并将净现值法纳入实物期权投资分析决策体系当中，总结了企业投资决策实物期权的一般分析方法；(3)探讨了实物期权应用中要考虑的各种要素，如实物资产的价值漏损、基差风险和非市场风险等，并进一步提出了实物期权应用的规范化策略和构建了一个实际应用实物期权方法的基本框架，尝试将期权的基本原理与企业在现实经济环境中投资决策的要素结合起来，从而可以在一定程度上超越期权的复杂的数学计算而汲取期权思想的精华，从而促进期权决策方法在实际投资决策中的应用；(4)将实物期权方法应用于企业战略投资，得出了战略投资项目的价值模型，指出可以将实物期权理论和方法应用于企业并购，分析了应用的具体方面，并提出应根据实物期权理论建立一套适合我国企业的灵活的投资决策系统。

A HPLC method for quantitative analysis of organic acids in the succinic acid anaerobic fermentation broth was developed.

建立了一种利用高效液相色谱法定量分析丁二酸厌氧发酵体系中多种有机酸的方法。

This method provides a simply an accurate approach to measure certain cross-sectional areas in large airways. The measured data may offer the reference for quantitative assessment of ventilation function, trachea stents selection, or means for dealing with tracheopathy.

本方法提供了一种简单、快速而又较精确的测量大气道某一截面面积的方法，为定量评价患者的通气功能、选择气管支架或采用其他干预手段处理气管病变提供了数据参考。

With the fast development of UCA, some contrast imaging method based microvessel perfusion assessment techniques have evolved from qualitative analysis to quantitative analysis.

然而基于&时间强度曲线&测量法的定量估计技术受仪器设置、成像方法等诸多因素的影响，因此目前还无统一的定量估计手段和定量标准。

Methods: TLC gastrodin on preparation, and Liuzhou, Uncaria qualitative identification; of Group Fangzhong Paeoniflorin active ingredients used RP-HPLC method for quantitative analysis.

采用薄层色谱法对制剂中天麻、地龙、钩藤进行定性鉴别；对组方中有效成分芍药苷用RP－HPLC法进行定量分析。

A method is introduced for quantitative determination of 1,2-dichloride ethylane by gas chromatography with PEG-20M chromatographic column,FID and using undecane as internal standard.

介绍用气相色谱仪、以PEG-20M色谱柱和FID检测器对1，2-二氯乙烷进行的一种定量测定方法，其内标物选用正十一烷。

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。