查询词典 biological

Traditional theory of ecological carrying capacity, which was established on the basis of quantitative dynamic of natural biological population, met extreme challenge while applied to human ecosystem research.

建立在自然生物种群数量动态基础之上的承载力理论，当其应用于人类生态系统的研究时，遇到了极大的挑战和困惑。

This paper proposes a novel growing neural-gas self-organizing algorithm to identify chaotic systems by imitating biological group population growing process.

在自组织神经网络基础上，根据生物群落自然增长的机制，提出了一种新的生长型神经气的自组织算法，用于混沌系统的自组织辨识。

Genetic Algorithms is an adaptive intelligent algorithm about random global search and optimization based on the mechanism of "survival of the fittest" of biological evolutionary theory and population genetics principle.

遗传算法是基于生物进化论的"适者生存"机制和群体遗传学原理而开发出的一种随机全局搜索与优化的自适应智能算法。

Impact of population growth on resources environment: population explosion's pressure to land resource, population growth's pressure to biological resources, population explosion's pressure to water resources, population inflation's pressure to energy.

人口增长对资源环境的影响：人口爆炸对土地资源的压力，人口增长对生物资源的压力，人口爆炸对水资源的压力，人口膨胀对能源的压力

Entomopathogenic fungi are the main biological factors of controlling pest population in nature, but its application was limited because of their poor performance in field.

昆虫病原真菌是自然界控制害虫种群的主要生物因子，其研究开发越来越受到重视。但由于存在致死速度慢、防效不稳定、对环境条件要求高等缺点，限制了昆虫病原真菌的应用。

In recent years, consolidation in the development of the medical profession, and strive to improve the quality of teaching at the same time, the additional population science, biological science, computer science, environmental science, foreign languages, materials science, and other non-medical professionals to make the College to maintain and carry forward Medicine, radiology, nursing, pharmacy characteristics at the same time, to the multi-disciplinary, comprehensive, modern and the University of direction.

近年来，在巩固发展医科专业，努力提高教学质量的同时，增设了人口科学、生物科学、计算机科学、环境科学、外语、材料科学等多个非医药专业，使学院在保持和发扬医学、放射、护理、药学特色的同时，向多学科、综合性、现代化大学方向发展。

Although theoretical principles have been proposed for designing the nature reserve based on the knowledge of island biological geography, population viability analysis and landscape ecology, they appear unsuitable in practice.

运用地理信息系统为工具，以盐城自然保护区为实例研究，针对当前自然保护区理论存在的设计规划方法的不足，提出了一套具有科学理论依据的操作性较强的保护区设计规划方法。

With the high sensitivity of biomarker assays,the exposure levels and its biological effect in population exposed to low level carcinogens for a long time can be more directly measured,and the dose-effect relationship between biomarkers and a specific risk can be more accurately descripted The study on biomarker,which still stayed in primary stage,presented good prospect in the field of risk assessment on environmental health In this review,data are summarized on the role of biomarkers that are used for...

利用生物标志物高灵敏的特性，可以直接测量人群长期低剂量的暴露水平及其效应水平，能够较准确地估计生物标志物水平与特定危险性之间的关系，这方面的研究尚属起步阶段，但在环境健康危险度评价中具有很好的发展前景。对生物标志物的选择，其在低剂量致癌物暴露危险度评价中的作用，评价方法或途径及存在的问题进行了总结。

In this paper the utility analysis is introduced into the basic model for e-financial innovation diffusion by utilizing biological population model as its benchmark so that the point of saturation can be determined more accurately. in addition, empirical studies have been done using data of taiwan credit card and mainland bank card. the result provides theoretic reference for the strategic decision of financial institutions and for the policy-making of the supervisors.

本文在将生物种群模型引入网络金融创新产品扩散的基本模型的基础上将效用引入扩散过程的分析中，从而更准确地判断饱和点的产生，并针对中国台湾信用卡数据和中国内地银行卡进行了实证研究，模型的研究可以为金融机构的战略决策以及管理部门的产业政策制定提供理论参考。

Then, introducing the improved straight-line stabilization method to control the chaotic phenomena in the models, a controller is designed to stabilize the biological population in the oribits where the fixed points lie on, thus eliminating the chaotic phenomena in population to keep the population system in persistent existence.

其次采取改进的直线稳定化方法控制模型所存在的混沌现象，设计并求得了使得生物种群稳定到不动点轨道的控制器，最终消除了种群中存在的混沌现象，从而保持了种群系统的持续生存。

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。