1) Weak sustainable Development
弱持续性
2) uniform week persistence
一致弱持续性
1.
In this paper,for a kind of age-structured epidemic models,it is proved that the disease is extinct when the basic reproductive rate R_0<1,and the epidemic model possesses both the strong persistence and the uniform week persistence when R_0>1.
研究了一类具有年龄结构的SIR型传染病模型,证明了该模型当阈值R_0<1时疾病消亡,当阈值R_0>1时模型同时具有一致弱持续性质和强持续性质。
3) weak persistence
弱持久
1.
In the paper the random disturbing is considered in the determined models ,and the sufficient conditions of dissipation and weak persistence of the system are obtained.
讨论了随机扰动对梯度器中竞争模型的影响 ,得到系统耗散和弱持久的充分性判
2.
Using the theorem on discrete semi-dynamicl system and the stability results on monotonous and continuous operator,we obtained the sufficent conditions for uniform boundness,strong and weak persistence and permanence of a discrete system with age-structure subdivided into young and adult population approximately.
应用差分方程的比较原理、离散半动力系统的持久性定理和单调连续算子的三分稳定性获得了一类捕食者具有年龄结构 ,即将捕食者近似地分为幼年和成年种群的离散捕食系统一致有界、弱持久、强持久和永久持久的一组充分条件 。
4) Week persistence
弱持续
5) weak permanence
弱持续生存
1.
Establish a model with HollingⅡ of the relation of air pollution basis on ecotoxicology,and get the term of population weak permanence and also get the global asymptotic stability of equilibrium point of system.
从生态毒理学的角度,建立了具HollingⅡ功能性反应的大气污染模型,研究了污染系统中种群的弱持续生存等条件,得到了常数输入下系统奇点的全局渐近稳定性。
6) weak sustainable development
弱持续发展
1.
This essay states that the sustainable development based on economic growth can only be called weak sustainable development, and that the realization of a genuine sustainable development can only be derived from a strong sustainable development based on the integration between economics and ecology.
基于经济增长的可持续性而提出的可持续发展只是一种弱持续发展 ,要实现真正意义上的可持续发展必须是以经济学和生态学整合为基础的强可持续发展。
补充资料：持续性部分性癫痫
持续性部分性癫痫
epilepsia partialis continua
又名“Kojewnikow综合征”，是大脑运动皮质病变引起的部分性运动性发作，特点是面部肌肉或上肢的限局性阵挛，持续不断，但意识无障碍。本综合征有两种临床类型：①起病于2～10岁，平均6.4岁。都有已知的病因，如炎症、血管病等。阵挛发作总是限局性的，肌阵挛发作出现较晚。脑电图背景波形正常，棘慢波发放主要限局于中央区。病程不进展。一般没有智力发育障碍。②小儿慢性进行性持续性部分性癫痫，即Rasmussen综合征。本型病因不明。起病在2～14岁间，起病前正常或在数月内有感染史。发作形式是部分性运动性阵挛，以上肢为主，成为一侧身体。发作频繁。常伴其他发作类型，肌阵挛抽搐出现时间较早。常有偏瘫，智力落后等神经系异常。脑电图背景波变慢、不对称。发作期和间期均有爆发性棘慢波，常为弥漫性或多灶性。上述癫痫治疗困难。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。