查询词典 evolutionary

For some species, the character of sexual precocity was developed in the evolutionary process and stably transmitted to future generations.

一些物种在进化过程中形成了性早熟的特性并能在群体中稳定遗传。

This seems to be an evolutionary response to predation.

这似乎是对捕食的一个进化回应。

The improvement of the accuracy of the wavelet-based evolutionary spectrum estimation is discussed, which is based on the original work of Priestley.

在Priestley提出的基于小波分析进化谱理论基础上，对改进进化谱估计的性能进行了研究。

The geochemical characteristics of basic to intermediate-basic igneous rocks indicate that they belong to a tholeiite suite. Their chondrite-normalized REE patterns are of nearly flat and slightly LREE-enriched type, and their primitive mantle-normalized and MORB-normalized trace element spidergrams are generally similar; the LILEs Cs, Ba, Sr, Th and U are enriched, while Rb and K and the HFSEs Nb, P, Zr, Sm, Ti and Y are depleted. All these show comagmatic evolutionary and genetic characteristics.

基性—中基性岩浆岩的地球化学特征表明其属于拉斑玄武岩系列，稀土元素分布型式呈REE近平坦型—LREE轻微富集型，微量元素原始地幔标准化的蛛网图和MORB标准化蛛网图上的分布型式总体很相似，富集大离子亲石元素Cs，Ba，Sr，Th，U而相对亏损Rb，K和高场强元素Nb，P，Zr， Sm，Ti和Y，显示同源岩浆演化成因特征。

A class of Probabilistic Modeling Evolutionary Algorithms are explored and their principles, models and algorithms are studied.

进化算法的共同特点是通过选择和重组过程模仿个体的进化过程。

This algorithm updates probability vector by variety of population diversity and evolutionary state of every gene.

该算法通过种群多样性的变化和每个基因座自身的进化状态来控制概率向量的更新。

Horizontal gene transfer is an important evolutionary mechanism in prokaryotic genome evolution and has been widely studied.

在原核生物的进化过程中，基因的横向转移是一个重要的进化机制。

In the last decade, several evolutionary improvements have been made in the total hip replacement procedure and prosthesis.

在过去十年中，一些进化改进已在全髋关节置换术的程序和假肢。

The relationship between the proterozoic Era and explosive evolution of the life on the Cambrian period was preliminary explored by an Ecological and Evolutionary approach in this paper.

距今38亿年前地球最早生命诞生以来，至元古代早期第一个真核细胞开始出现；从无性分裂或出芽繁殖的原核生物到有性繁殖的真核单细胞生物以及从单细胞的原生动物到真核多细胞的后生动物的进化，无疑是生命进化过程中非常重要的事件。

And it can give a proximately prediction for the last ten-group data by using those obtained rules. In addition, we analyze five factors affecting the learning ability of this system further and compare it with evolutionary modeling method.

为了更进一步分析分类器系统的学习能力，本章还考查了五个主要的影响因素，并与演化建模方法做了对比分析，比较了它们各自的优劣。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。