轭

In the second chapter, the problem of the optimal inputting rate control for a class of competitive population dynamics system with age-structure is discussed. By means of characteristic line, Gronwall Lemma, Bellman Lemma, adjoint system and so on, the Lipschitz continuity properties of the system in terms of the control variable is certificated, and the necessary condition of the optimal control is obtained.

第二章讨论了一类具有年龄结构的竞争种群系统最优输入率控制问题，综合应用特征线法，Gronwall引理，Bellman引理，共轭系统等知识，证明了系统解关于控制变量的Lipschitz连续性，给出了控制为最优的必要条件。

The formal solution of partial differential equations is given on characteristic line, the existence of the optimal control is proven by using Ekeland\'s variational principle, Gronwall Lemma and adjoint system, then the necessary condition of optimality is obtained by means of the conception of normal cone.

用特征线法表示出偏微分方程的形式解，利用Ekeland变分原理，Gronwall引理和共轭系统证明了最优控制的存在性，并借助于法锥概念得到了最优控制的必要性条件。

The Statistical Linearization Adjoint Method is utilized in the numerical simulations of this paper.

本文的仿真采用了统计线性化共轭方法。

Because the olefinic hydroxyl groups are linked with olefinic carbon, so it can ionize H〓 ion and present the properties of weak acid, and so the olefinic hydroxyl groups change into the structure of alcoholate in the presence of alkali , but the structure of alcoholate may change into the structure of olefine alcohol again, after the Na〓 ions is removed, or when the pH value of its solution turn into pH. Because the structure of the olefine alcohol is not stable and is easy to isomerizate to become the structure of olefine ketone, so there appear the ca. 1730cm〓 C=O absorption peak in the IR spectra of the products.

明确指出了在C〓、C〓富勒醇中存在烯碳羟基与叔碳羟基等二类羟基，烯碳羟基由于与一个共轭体系相连，从而其羟基可以离解而呈现出弱酸的性质，因而在碱性条件下易形成烯醇钠盐的结构，当除去钠离子后或在酸性溶液中，烯醇钠盐结构转变为烯醇结构，但由于烯醇结构不如烯酮结构稳定，从而形成烯醇结构后，烯醇结构异构化为烯酮结构，因此在其产物的IR谱图上出现1730cm〓附近的C=0吸收信号。

We will obtain that 0 is an eigenvalue of the operator corresponding to the model with geometric and algebraic multiplicity one.

第三节中研究对应于该排队模型主算子的谱特征，得到0是该主算子及其共轭算子几何重数与代数重数为1的特征值。

In this thesis, we mainly discuss the algorithm and the theory of conjugate gradient method .

本文主要研究了共轭梯度法的算法和理论，得到了一些理论和数值结果。

Methods: Sonogashira coupling reaction of terminal alkyne and-β-iodovinyl sulfone was used to synthesis the product.

通过端炔与烯基砜发生了Sonogashira偶联反应，生成含共轭烯炔结构单元的药物前体烯基砜。

It was also found that the resonance effect was more important than the inductive/field effect on the allylic BDE.

进一步分析表明烯丙位BDE受共轭效应比诱导／场效应的影响更为明显。

Thence in full panoply and equipment we came towards noon to the sacred waters of the Alpheus, and there we offered victims to almighty Jove, with a bull to Alpheus, another to Neptune, and a herd-heifer to Minerva.

在那里，我们用肥美的牲品祀祭力大无比的宙斯，给阿尔菲俄斯和波塞冬各祭了一头公牛；此外，还牵过一头从未上过轭架的母牛，献给灰眼睛的雅典娜。

There she stayed them, unloosed them from the chariot, and gave them their ambrosial forage; but Venus flung herself on to the lap of her mother Dione, who threw her arms about her and caressed her, saying,"Which of the heavenly beings has been treating you in this way, as though you had been doing something wrong in the face of day?"

宽出轭套，拿过装着仙料的食槽，放在它们面前。膝腿上，后者将女儿搂进怀里，轻轻抚摸，出声呼唤，说道："是谁，我的孩子，是天神中的哪一个，胡作非为，把你弄成这个样子，仿佛你是个被抓现场的歹徒？"

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失