单型

Sufficient conditions for existence of positive periodic solutions of these systems are established and we investigate a stochastic Lotka-Volterra ecosystem, by use of the mixed quasi-monotone theory and Liapunov function method, some new results are obtained.

最后，我们研究了n种群随机Lotka-Volterra生态模型，利用混合单调流理论和It〓型随机微分方程知识，得到了其解过程的均方渐近稳定性和强生态稳定性的结果。

A character literal represents an integer constant , typically a Unicode code point, as one or more characters enclosed in single quotes.

一个字符表示一个整型常量，通常是一个 Unicode 代码点，用一个或多个包围在单引号中的字符来表示。

In order to make the Type A single ended modern travelling wave based fault location principle for transmission lines using fault induced transient travelling waves to be better ...

为了将利用故障暂态行波的A型单端现代行波故障测距原理更好地用于实测波形分析，将其划分为3种独立的运行模式，即标准模式、扩展模式和综合模式，并给出了各自用于实测电流暂态波形分析的典型实例。

This paper is based on N-type MOS-HBT-NDR circuit to design a new type of logic gate circuits, The use of a monostable-bistable transition logic element logic gates to realize the principle of operation,,and NMOS devices to control the input stage circuit NDR circuit switching action, And the overall modulation circuits I-V characteristic curve.

中文摘要此篇论文是以N型MOS-HBT-NDR电路来设计新型逻辑闸电路，利用单稳态-双稳态传输逻辑闸(monostable-bistable transition logic element，MOBILE)电路的操作原理来实现，并以 NMOS元件来控制输入级电路中NDR电路的开关动作，进而调变整体电路的I-V特性曲线。

So,lognormal distribution is not the well life distribution of thismaterial.

结果表明，通常采用的对数正态分布的理论失效率呈单峰型，与材料经验失效率的变化不相一致，因此对数正态分布不宜作为稀土钼铜合金球墨铸铁材料裂纹萌生寿命的概率分布。

In order to the conservation and utilization of this wasp, laboratory studies were conducted to assess the population dynamics of them and effectiveness of the long-winged parasitoid wasps, T. elegans for suppressing populations of S. oryzae using methods for single element variance analysis and LSD multiple comparisons.

为了更好地保护和利用该蜂，采用单因子方差分析和LSD多重比较，在实验室内研究了雅脊金小蜂和米象的种群数量动态，以及该蜂长翅型雌蜂对米象种群的控制作用。

Running at one megabit per second with Manchester encoding, this Ethernet standard operates on a baseband basis, providing for a single transmission at a time. Connection to the centralized hub is accomplished over UTP of 22, 24 or 26 gauge at distances of up to 500 meters in a star topology. Two pairs are used, with one providing upstream connectivity to the hub and the other providing downstream connectivity.

该以太网标准属于基带传输，单工工作方式。1Base-5与中央集线器的联接是通过UTP完成的，UTP的规格为22，24和26，采用星型拓扑，最大传输距离为500米。1Base-5使用2对UTP，1对提供与HUB的上行连接，另1对提供下行连接。

The theoretical plasma concentration versus time was calculated for all patients on the basis of the pharmacokinetic models described by Sheiner et al. Predicted effect versus time was calculated by following the pharmacokinetic-pharmacodynamic link model. The Ke0 was estimated by fitting a sigmoid cure. Group B was given the drug in a bolus of 2 mg.kg-1 and the Ke0 was calculated according to the method reported by Minto et al.

22例ASA ⅠⅡ级择期手术患者，A组(n=11)持续输注罗库溴铵0.03 mg·kg-1·min-1直至4个成串刺激降至20% 30%，B组(n=11)单次注射罗库溴铵2 mg·kg-1.A组血浆药物浓度用Sheiner等报道的药代动力学参数模拟计算，预测效应根据药代动力学-药效学关系公式换算，Ke0通过S型曲线拟合计算。B组采用Minto等提出的方法计算。

There is an agreement that autosomal recessive juvenile parkinsonism is a monogenic disease caused by mutation in parkin gene.

一致的观念认为常染色体隐性遗传性青少年型帕金森综合症是parkin基因突变引起的一种单基因遗传病。

Osteogenesis imperfecta (01) is a typical monogenic disorder related to bone tissue. Seven different types have been described, in which OI type I is the most common form of OI.

成骨不全(osteogenesis imperfecta，OI)是一种典型的骨骼系统相关的单基因疾病，有七种类型，其中Ⅰ型是最主要的一种类型。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。