查询词典 evolutionary

It is a point and disputed issues in the field of evolutionary biology in the past 100 years.

在过去的100多年中这个问题一直是生物学研究领域的一个热点、难点。

The main work of this dissertation is that after the conventional codebook design algorithm is used to decrease the expected distortion, evolutionary algorithm is introduced into vector quantization based on the partial distortion theorem to design the optimal codebook.

本论文的主要工作正是在利用传统码本设计算法减少平均误差的前提下，根据矢量量化的部分失真定理，引入进化算法，设计出较优的码本。

A partial distortion theorem based Channel-Optimized VQ design algorithm using the evolutionary algorithm on noisy channel was presented.

提出了一个使用进化算法、引入部分失真定理的信道最优矢量量化器的设计算法。

Simple concept"and " duologue are theoretical elements that express basic explanation relation on science explain substance.They construct an evolutionary mechanism of scientific development.

"简单概念"和"对话"是表达科学对实在的基本解释关系的理论要素，构成科学的一种进化机制。

Company with using the evolutionary game of duplicative dynamic , this paper analyses the extensive and malignant battle of price that presently existing in China.

本文利用复制动态的进化博弈对我国目前出现的大范圆的、恶性的价格战进行了博弈分析。

A dynamic multiobjective optimization evolutionary algorithm based on core estimation of distribution is presented.

提出了一种基于核分布估计的动态多目标优化进化算法。

The bat fossil can tell researchers about the evolutionary history of echolocation and the evolution of life in the early Tertiary.

研究者们从蝙蝠的化石中获悉回声定位的进化历史和第三纪早期的生物生活。

Evolutionary Ecologist, Randy Olson, tries to find out just who is the real "Flock of Dodos"

进化生态学家，兰迪奥尔森，试图找出到底谁是真正的"绒面的Dodos "

Neighbor-Joining analyses of teleost hepcidins showed that the eelpout 4cys variant arose independently from the notothenioid version, which lends support to adaptive evolution of reduced cysteine hepcidin variants on cold selection. The NJ tree also showed taxonomic-specific expansions of hepcidin variants, indicating that duplication and diversification of hepcidin genes play important roles in evolutionary response to diverse ecological conditions.

另外我们在另一种生活于南极水域的eelpout中也发现了一种含有4个半胱氨酸残基的hepcidin，而eelpout和南极鱼notothenioid在分类学上分属于不同亚目，是一类相差较远的物种，利用Neighbor-Joining方法建树分析发现eelpout的hepcidin虽然同样仅含有4个半胱氨酸残基，但和notothenioid的4cys_hepcidin有着不同的起源，这也进一步说明了hepcidin中半胱氨酸残基数目的减少确实是对寒冷环境的一种适应性进化。

This is a kind of evolutionary elliptic free boundary problems, in which the free boundary changes with time and at each fixed time the unknown function satisfies a boundary value problem for an equation of elliptic type.

详细本文分两部分。第一部分讨论拟定常电加工问题。这是一类发展型的椭圆自由边界问题，其自由边界依赖于时间的变化而不断演化，在每一固定时间，未知函数满足椭圆型方程的边值问题。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。