查询词典 second derivative

The results show that this pyrano[4,3-b] pyran derivative observably quenches the fluorescence of BSA in a static quenching mode. The binding constants and the numbers of binding sites at different temperatures were obtained and the effects of some metal ions on the binding constant of the derivative and BSA were also discussed.

求得不同温度下二者的结合常数和结合位点数，探讨了微量金属离子对实验体系结合常数的影响，并根据热力学参数确定了这种吡喃并[4，3-b]吡喃衍生物与牛血清白蛋白之间的作用力类型。

This thesis intends to analyses the contents and the nature of shareholder"s right, direct action and derivative action of some countries and regions such as England, the United States, France, Korea, Japan, and Taiwan region, then analyses the current situation of the legislation and the enforcement of the law onshareholder"s lawsuit, and then intends to make suggestion on how to perfect the direct action and how to establish the derivative action in our country.

论文对股东权的内容和性质、股东直接诉讼和股东派生诉讼的法理作了分析，利用现有资料对各国和地区如英国、美国、法国、韩国、日本和我国台湾地区的股东直接诉讼和股东派生诉讼作了比较研究，并分析了我国股东诉讼的立法和司法现状，然后对完善我国的股东直接诉讼制度和建立我国的股东派生诉讼制度提出自己的建议。

The financial derivative is not in accord with the definition of the traditional accounting element in form. But in essence, the financial derivative is the right or obligation to undertake that enterprises have now and will cause the inflow or outflow of enterprises' fund in the future.

衍生金融工具虽然从形式上不符合传统会计要素的定义，但从实质上看，衍生金融工具是企业现在拥有的权利或承担的义务，在将来会造成企业资金的流入或流出。

From essential naturel,the defence activities of lawyer are the derivative,the defence activities of Lawyer are the derivative of defendants right and the product which may compensate for the "overdrawing" of judicial powers.

从根本性质上来讲，律师的辩护活动实质上是被告人权利的衍生品和对司法权力"透支"进行补偿的产物。

It shows that the δ-derivative is identical with the derivative of finite discrete function when the sample points are increased.

引入了连续函数的δ导数新概念，研究表明，在采样点无限增多的情形下，它与有限离散函数导数概念相一致；在极限情形下，它与常规意义下连续函数导数概念相一致。

Furthermore, in order to greatly improve computational efficiency, another topological optimization method, named as a topological derivative and level set algorithm for topology optimization, is also proposed by unifying topological derivative theory with the level set method.

同时，又将拓扑导数理论和水平集算法结合起来，提出了结构拓扑优化的拓扑导数与水平集算法，进一步提高了计算效率。

On the basis of the mathematical model, the dynamic derivative of the aircraft at the different angles of the tailplane was analyzed using the technique of dynamic derivative simulation.

在非定常建模的基础上，采用动导数仿真，分析了不同平尾偏角时的动导数，结果表明，水平尾翼偏角主要对零动态阻尼所对应迎角有较大影响，随着舵偏角的增大，该迎角减小。

The pressure derivative curve will upwarp because of the existence of the threshold pressure gradient and the fault. The identification of the type of "upwarping" in the pressure derivative curve is crucial to the selection of the well testing model.

启动压力梯度和断层的存在都会使压力导数曲线发生"上翘"，对压力导数曲线"上翘"类型的识别，是正确选择试井解释模型的关键。

The invention discloses a process for preparing N-Boc derivative or N-Cbz derivative of chiral alpha, alpha'-double substituent pyrrolidine which contains ethylenic link and acetylenic link substituent.

本发明公开了一种制备含烯键和炔键取代基的手性α，α'-二取代吡咯烷的N-Boc衍生物或N-Cbz衍生物的方法。

The fourth-derivative analysis was performed on the spectra to set up the uniform initial central wavelengths for excitation spectra of dinophyta and bacillariophyta,respectively,according to the position and number of maxima on the derivative spectra.

对其作四阶导数分析的基础上，根据导数光谱中出现的极大值位置和数量，对甲藻门和硅藻门的激发光谱分别设定统一的初始中心波长。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。