The present paper is concerned with the optimal control problem for an improved nonlinear age-dependent population dynamics. 研究某一类改进的关于年龄结构的非线性种群系统的最优控制问题。
It was suggested to the Committee that an age-dependent risk of intussusception might also apply to the2 novel rotavirus vaccines that are currently in advanced development. 由此向委员会建议,这种发生肠套叠的年龄相关性风险可能也会出现在目前已进入后期研发阶段的两种新型轮状病毒疫苗。
It noted that the possibility of an age-dependent risk of intussusception should be taken into account in assessing rotavirus vaccines. GACVS指出,在评估轮状病毒疫苗时,应考虑可能出现的肠套叠年龄相关性风险。
Age-dependent Differential Expression of HIV-1 Viral Protein and Plasma Cytokine in HIV-1 Transgenic Rat 不同年龄HIV-1转基因大鼠中HIV-1病毒蛋白及血浆中细胞因子表达水平的研究
From children with household sputum positive contact, the distribution of their TST reaction before age of seven was not age-dependent as general population. 曝露于痰抹片阳性结核病患之家庭内接触者孩童,其皮肤结核菌素测试分布不似一般儿童有与年龄相关的变化。
This paper is mainly concerned with optimal harvesting policy for three competing species with age-dependent and diffusion. 本文主要研究具有扩散和年龄结构的三种群竞争系统的最优收获策略问题。
Optimal Inputting Rate Control for Two Classes of Age-dependent Competitive Population System 两类具有年龄结构的竞争种群系统最优输入率控制
The Optimal Control for Two Classes of Nonlinear Age-dependent Population System 两类具有年龄分布的非线性种群系统的最优控制
A decrease in chaperone activity from nuclear crystallin has been showed in age-dependent fashion. 晶状体核的α-晶体蛋白具有年龄依赖性分子伴侣作用的降低。
In this paper, the optimal distributed control problems for a class of age-dependent non-linear population diffusion system with final state observation are studied. 讨论了一类具终端观测且与年龄相关的非线性时变种群扩散系统的最优分布控制问题。
In this paper, we discuss an age-structured MSEIR epidemic model with the loss of immunity and an age-dependent vaccination rate ψ( a). 本文讨论带二次感染和接种疫苗的年龄结构MSEIR流行病模型。
Also the Framingham is so age-dependent that it is very hard for women to get high risk in Framingham. 新的弗兰明翰风险目录能够应对心血管疾病并且女性也适用。
The optimal harvesting control problem for the age-dependent population spatial diffusion system represented by integral partial differential equations is discussed. 研究了由积分偏微分方程描述的年龄相关的种群空间扩散系统的收获控制问题。
Age-dependent changes of dopamine DA_1 receptors in aortas and mesenteric arteries of rats 大鼠主动脉和肠系膜动脉多巴胺受体DA1亚型和年龄变化的关系
Local stability of the logistic age-dependent population growth 与年龄相关的Logistic种群增长方程的局部稳定性
Optimal Control for Periodic Age-Dependent Population Dynamics 一类具年龄结构的线性周期种群动力系统的最优控制
A class of stochastic age-dependent population dynamics system is proposed, on the condition that migration is perturbed by random external environment. The mean square and almost sure exponential stability of stochastic age-dependent population dynamics system are discussed in Hilbert space. 在假设随机的外界环境对迁移产生扰动的条件下,给出Hilbert空间中一类随机时变人口发展系统.对随机时变人口发展系统的均方稳定性和指数稳定性进行了讨论。
The optimal distributed control problems for a class of age-dependent nonlinear population diffusion system are discussed. The first-order necessary conditions for a control to be optimal are obtained by means of the variational method. 讨论了一类具分布观测且与年龄相关的非线性种群扩散系统的最优分布控制问题,利用变分方法得到了控制为最优的一阶必要条件。
Exponential Stability of Stochastic Nonlinear Age-dependent Population Dynamics System 一类随机非线性种群发展系统的指数稳定性
The local stability of an equilibrium poPulation configuration of the logistic age-dependent population growth has been investigated. 本文讨论与年龄相关的人口增长Logistic模型在平衡人口结构附近的局部稳定性。
In this paper, we studied a class of stochastic nonlinear age-dependent population dy-namics system. The mean square and almost sure exponential stability of stochastic nonlinear age-dependent population dynamics system are discussed. 本文研究了一类随机非线性时变种群发展系统,对随机非线性时变种群发展系统的均方稳定和指数稳定进行了讨论。
This paper discusses the optimal harvesting control problem for a class of nonlinear age-dependent population diffusion system. It proves the existence of the optimal harvesting control and obtains the necessary conditions for a control to be optimal. 讨论了一类与年龄相关的非线性种群扩散系统的最优捕获控制问题,证明了最优捕获控制的存在性,并给出了控制为最优的必要条件。
The physiological expression of AR in control group was in accordance with age-dependent sex hormone activity. 对照组大鼠的生理性AR表达与年龄依赖的性活动能力一致。
Penalty Shifting Method on Calculation of Optimally Distributed Control for Age-dependent Population Diffusion System 关于年龄相关的种群扩散系统的最优分布控制计算的惩罚移位法
Age-dependent increase of mitochondrial DNA deletion in myocardial cells and blood lymphocytes 心肌和淋巴细胞线粒体DNA缺失在衰老中的意义
In this paper, an optimal harvesting problem for linear periodic age-dependent population dynamics is investigated. Namely, the Lotka-Mckendrick model with periodic vital rates and a periodic forcing term that sustains oscillations is considered. 研究一类具有年龄结构的线性周期种群动力系统的最优收获控制问题,即讨论了具有周期的生死率和周期变化的收获项的Lotka-Mckendrick模型。
Non-linear Problem of the Fertility Rate Control for Age-dependent Population Diffusion System with Distributed Observation 具分布观测的年龄相关的种群扩散系统生育率控制的非线性问题
NMDA and/ or its receptors are especially important about the establishment of epileptic animal model of the childhood because expression of NMDA receptors in an age-dependent fashion is related to the susceptibility to seizures. 由于惊厥易感性的产生与NMDA受体的年龄依赖性的表达特点密切相关,因此NMDA和/或其受体在婴幼儿时期癫痫动物模型的制备中显得尤为重要。
Age-dependent prevalence and clinical features of migraine 偏头痛患病率和临床特征的年龄依赖性