查询词典 predator

We proposed and analyzed a class of Lesli predator-prey model with mutual interference and obtain global asymptotic stability of positive equilibrium point for the model by using the theory and method of stability.

建立并分析一类具有相互干扰的Leslit捕食与被捕食模型，运用稳定性理论及方法得到了该模型正平衡点的全局渐近稳定性。

This paper consists of three parts:We first consider the non-autonomous predator-prey system with both Beddirigton-DeAngelis functional response and dispersion. By using comparison theorem of differential equation, we study the permanance of the system. After that, by constructing suitable Lyapunov function, we obtain some sufficient condition which guarantee the existence of globally asymptotically stable almost periodic solution of the system.

本文研究三方面的内容：第一部分考虑具有扩散和Beddington—DeAngelis功能反应的捕食-食饵系统，利用微分方程比较原理得到该系统一致持续生存的条件；通过构造适当的Lyapunov函数得到了该系统存在全局渐近稳定概周期解的充分条件。

With the help of comparison theorem, sufficient conditions which guarantee permanence of the system are obtained. For the almost periodic case, by constructing a suitable Liapunov function, we obtained that the system has a unique globally asymptotically stable positive almost periodic solution. Finally, we study a multispecies predator-prey system with stage structure and Holling II type functional response.

第二部分考虑具有阶段结构的非自治扩散捕食系统，利用比较定理得到该系统持久生存的充分条件，其后在概周期情形下通过构造合适的Liapunov函数得到了保证该系统存在唯一一个全局渐近稳定的概周期解的条件。

General Atomics Aeronautical Systems received the contract from USAF in January 1994 to execute the Tier II, Medium Altitude Endurance Predator Program.

1994年1月，美国通用原子公司获得了美国空军关于执行Tier II无人机的合同，即中高度远程"捕食者"计划。

The General Atomics Aeronautical Systems, Inc. MQ-1/Predator UAV, a medium altitude, long-endurance vehicle, is the largest current generation UAV in service with the U.S.

通用原子航空系统公司生产的中空长航时MQ-1/"捕食者"无人机是目前在美国军事上服役的最大的当代无人机机型。

For instance, he said, communications relays could be done from remotely piloted aircraft such as the Global Hawk, built by Northrop Grumman Corp, or Predator, made by privately held General Atomics.

佩顿举例说，通讯转接站就可以由遥控飞机来充当，这类飞机有诺斯罗普格鲁曼公司制造的"全球鹰"无人驾驶飞机和通用原子公司制造的"猎食者"无人侦察机。

The Air Force would provide standoff jamming with modified EB-52s or EB-1s, and close-in jamming with unmanned air vehicles such as the Northrop Grumman Global Hawk or General Atomics Predator.

EA-18(F/A-18G的另一编号)将装有EA-6B的ICAPⅢ电子战系统。其它可能的用于替代EA-6B的平台包括包括无人作战飞机UCAV、F-35联合攻击机、"湾流"V喷气行政机的改型EC-35SM、B-1轰炸机、B-52轰炸机和F-15改型。

In the second part we study the SIS epidemiological ecological system with bilinear incidence which both the prey and the predator catch an illness.

第二部分研究了具有双线性发生率食饵和捕食者均染病的SIS生态流行病学系统。

In the first part we study the SIS epidemiological ecological system with bilinear incidence which only the predator catches an illness.

第一部分研究了具有双线性发生率仅捕食者染病的SIS生态流行病学系统。

Tell us how big of a blip Aliens vs Predator is on you radar while you're at it.

告诉我们一个暂时现象异形对铁血战士大是在你的雷达，而您是在它。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。