查询词典 theory of evolution

Aimed at salt lakes in Qaidam, the qualitative and quantitative simulationwe made can further enrich and develop the theory of mixture about the formation and evolution of salt lakes. Some results we obtained can be theoretically used to choose and establish technological processes of a salt pan for exploiting K resource of MgSO4 sub-type salt lakes in Qaidam Basin.

针对柴达木盆地盐湖，从定性或定量模拟研究的角度，我们的研究丰富和发展了盐湖形成演化过程中的混合掺杂作用理论，某些研究成果可以用于柴达木盆地硫酸镁亚型盐湖钾资源开发前期选取和进行工艺路线设计的理论预判断上。

The results will contribute to a better understanding of the interaction between cells, the strutural foundation of symbiont origin, the pattern of life processes surrounding the cellular strutures and functions, and the theory of ensymbiosis and cell evolution in eukaryotes.

所得结果对于深入阐明低等单细胞动物与真核微生物共生系统中细胞间的相互作用、共生系统起源的结构及物质基础、细胞结构与功能的关系等细胞生命活动的规律，对于丰富和发展内共生生物学及细胞进化的理论具有重要科学意义。

Based on this conclusion, and from the view of technological evolution, this paper analyzed the argument of"advantages and disadvantages of Internet"with the theory of technophobia and the third-person effect.

根据这一结果，本文从传播技术发展的历史脉略入手，运用"技术恐惧"理论和"第三人效果"理论，对近几年关于互联网"利弊观"的争议进行分析，以期获得对网络传播功能的理性与全面认知。

In order to explore the factors affecting health evolution of knowledge-based enterprise organism, the modeling theory of cellular automata is adopted for analyzing the interactions between core intelligent units, sustaining intelligent units and dynamic environments.

为探索影响知识型企业生命体健康演化的因素，采用元胞自动机建模理论研究了核心智能单元、支持智能单元与动态竞争环境相互作用对知识型企业生命体健康演化的影响。

The phase space reconstruction theory of chaotic dynamic system, in combination of the non-linear reflecting and pan-capacity of neural network, can be used to establish the prediction model; and a kind of new prediction method is suggested to realize the complete tracing of phase point evolution process and to predict "the price nails", whereby improving the prediction accurateness and effectively solving the problem of negative prediction, with the satisfactory results obtained.

采用混沌理论预测系统边际电价针对我国电力市场电价变化特点，利用电价和负荷时间序列的混沌特性，重构准确的电价序列相空间，通过跟踪相空间相邻相点的演化趋势，建立基于快速BP网络的电价预测模型，对我国川渝电网电价进行预测，取得良好效果利用混沌动力系统的相空间重构理论，结合神经网络的非线性映射和泛化能力建立预测模型，提出一种新的预测方法实现了相点演化过程的全局跟踪，对"价格钉"进行预测，提高了预测精度，有效解决了负预测问题，得到满意的结果。

Firstly, it seeks the sources from which theories have been developed, by a summary of evolution or a road-map. Secondly, it explains the two basic forms taken by traditional theories on intra-industry trade, namely, horizontal intra-industry trade model and vertical intra-industry trade model. Both models take final products as trade objects and products of same industry are thus simultaneously exported and imported among developed nations and among developed nations and developing ones.Thirdly, it points out that the theory of vertical intra-industry trade has already been expanded in scope in the area of trade between developed countries and LDCs. It shows that the implication of vertical intra-industry trade has expanded to the importation and exportation of parts and components, intermediate products or processing products produced via various working procedures or different production links within the same industry, with MNCs as carriers. It gives the summary of the methods of measuring intra-industry trade and argues that the basic method adopted by this thesis is G-L Index. In addition, GHM and Input-output Analysis are introduced to demonstrate the expansion of vertical intra-industry trade.

首先，通过整理国际贸易理论的发展脉络，寻求产业内贸易的理论渊源；其次，阐述产业内贸易传统理论的两种基本形式，水平型产业内贸易与垂直型产业内贸易的理论模型，指出两者都以最终产品为贸易对象，实现了发达国家之间或发达国家与发展中国家之间的同一产业内产品的同时进口和出口；第三，结合全球化的特点和跨国公司在国际要素分工中的基础作用，指出发达国家与发展中国家之间的垂直型产业内贸易理论已经得到拓展，表明垂直型产业内贸易涵义已发展成为以跨国公司为载体的同一产业内不同生产工序或不同生产环节的零部件、中间产品或加工产品的进口和出口；最后，归纳了产业内贸易的计量方法，指出本文的产业内贸易基本计量方法是G-L指数(格鲁贝尔-洛伊德计量法)，并在此基础上进一步说明与垂直型产业内贸易的拓展相关的计量方法包括：GHM计量法和Hummels投入-产出分析法。

In this project, we study the theory of higher order differential equations in Banach spaces and related topics. We solve an open problem put forward by two American Mathematicians and two Italian Mathematicians concerning wave equations with generalized Weztzell boundary conditions, introduce an existence family of operators from a Banach space $Y$ to $X$ for the Cauchy problem for higher order differential equations in a Banach space $X$, establish a sufficient and necessary condition ensuring $ACP_n$ possesses an exponentially bounded existence family, as well as some basic results in a quite general setting about the existence and continuous dependence on initial data of the solutions of $ACP_n$ and $IACP_n$. We set up quite a few multiplicative and additive perturbation theorems for existence families governing a wide class of higher order differential equations, regularized cosine operator families, regularized semigroups, and solution operators of Volterra integral equations, obtain classical and strict solutions having optimal regularity for the inhomogeneous nonautonomous heat equations with generalized Wentzell boundary conditions, gain novel existence and uniqueness theorems,which extend essentially the existing results, for mild and classical solutions of nonlocal Cauchy problems for semilinear evolution equations, present a new theorem with regard to the boundary feedback stabilization of a hybrid system composed of a viscoelastic thin plate with one part of its edge clamped and the rest-free part attached to a visocelastic rigid body. Also we obtain many other research results.

在本研究中，我们对Banach空间中的高阶算子微分方程的理论以及相关理论进行了深入研究，解决了由美国和意大利的四位数学家联合提出的一个关于广义Wentzell边界条件下的波动方程适定性的公开问题，恰当地定义了Banach空间中的高阶算子微分方程Cauchy问题的算子存在族及唯一族，建立了齐次和非齐次高阶算子微分方程Cauchy问题适定性的判别定理，获得了关于高阶退化算子微分方程的算子存在族、正则余弦算子族、正则算子半群、Volterra积分方程解算子族的乘积扰动和混合扰动定理，得到了关于以依赖于时间的二阶微分算子为系数的一大类非自治热方程非齐次情形下的时变广义Wentzell动力边值问题的古典解、严格解的最大正则性结果，获得了半线性发展方程非局部Cauchy问题广义解和经典解存在唯一的判别条件，从实质上推广了现有的相关结果；得到了一部分边缘固定而另一部分附在一粘弹性刚体上的薄板构成的混合粘弹性系统的边界反馈稳定化的新稳定化定理，还建立了一系列其他研究结果。

With the evolution of history and the development of scientific culture,the theory of physical fitness is improving and enriching constantly.

随着历史的演变和科学文化的发展，体质的概念也在不断地完善和充实。

Through study of the sedimentaiy geology in the several main belts in China, it is mainly purpose that paper introduces the classic sedimentology to a research on the formation and evolution of erogenic belts and builds up a relatively systemic method and theory of the Orogenic-Sedimentology.

论文通过对中国西南及邻区主要造山带的沉积地质学研究，将经典的沉积学方法体系引入造山带的形成和演化研究，建立了一个比较完整的造山带沉积学理论和方法体系。

I The theory of the historical evolution of Israelitic religions leads us from Mosaic Yahwehism to the ethical monotheism of the Prophets, from this to the universalist conception of God developed during the Exile, and from this again to the ossified Phariseeism of later days.

理论的历史演变Israelitic宗教使我们从花叶Yahwehism的道德一神教的先知，从这一概念的普遍性上帝流亡期间制定，并从这个再次僵化Phariseeism后来天。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐