查询词典 predator

In part two, we study the Dirichlet problem for a reaction-diffusion system of three species: a predator, a mutualist-prey and a mutualist.

第二章讨论了一类具有扩散的捕食-食饵-互助系统共存态的存在性问题。

The first part presents develops of predator-prey systems and gives the model that is investigated in our paper; Chapter 2 presents the results on boundedness of solutions and permanence of system; In chapter 3, we explicitly derive a domain of attraction for the positive equilibrium of system by using Liapunov method; The local stability and the conditions that Hopf bifurcation occurs are obtained in chapter 4; In chapter 5, some explicit fomulae of the direction of Hopf bifurcation and the stability of bifurcating periodic solutions on the center manifold are determined,using normal form and center manifold introduced by Hassard et al; In chapter 6, some numerical simulations are performed to illustrate the analytical results found; Our paper ends with a brief conclusion.

全文共分七章，第1章对捕食-食饵系统的发展背景做了介绍并给出了本文研究的模型；第2章讨论了系统的保持性和解的有界性；第3章研究正平衡点的全局性质，对正平衡点的吸引域进行了精确估计；第4章研究了系统的正平衡点的局部稳定性和Hopf分支存在的条件；第5章利用规范型和中心流形定理得到了一个决定Hopf分支方向、分支周期解的稳定性及其他性质的精确公式；第6章对一个具体模型进行了数值模拟；第7章对全文进行了总结。

The Komodo dragon is the largest living lizard and a fearsome predator.

科摩多龙是目前存在的最大蜥蜴，它是一种令人恐惧的捕食性动物。

And global stability of boundary equilibrium, which implies the extinction of the predator population, is studied by the limit system theory and Dulac criterion.

所得结论适用于具有Holling type-Ⅱ、Ⅲ和Rosenzweig功能反应函数的捕食模型，最后通过数值模拟来验证所得结论。

They have infested the shallow filmy brine of the Ebon Sea, becoming the dominant predator of the area.

它们在厄本海的浅滩一带大量繁殖，成为那个地区的优势物种。

Rex was the primary predator, says Scott Eckert of the Wider Caribbean Sea Turtle Conservation Network at Duke University.

美国杜克大学加勒比海地区海龟保育网的史考特艾克特表示。

What interests me most is that Kevin is applying the predator-prey .models to study the tension between rationality and emotionality in Hamlet.

我很感兴趣的是他用捕食者-猎物模型来研究《哈姆雷特》中理性和感性之间的tension张力？？

In the second chapter, we discuss the estimation method of each parameter in the 2-species predator-prey model in detail.

在第二章中，我们详细地讨论了两种群的食饵—捕食者模型中三种参数的估计方法。

And some sufficient conditions of the existence of positive solutions to similar predator-prey type and competition type are provided.

并且给出了具有类似结构的竞争模型和捕食模型解的存在性的一些充分性条件。

Futuristic Factoid: It is 7 feet tall with a clawed wings and can run 40 mph, making it a powerful predator.

特征：它有7英尺高，和带爪的翼。它可以以每小时40英里的速度奔跑，这是它成为一个非常强大的捕猎者。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"