极限

In the meantime,we note that the previous work on superfluidity mainlyconsider two extreme cases in weak interaction limit and strong Thomas-Fermiinteraction limit.

我们进一步注意到过去研究工作主要集中在弱相互作用极限下和强相互作用Thomas-Fermi近似极限下这两种极端情况。

However, in designing the beamless slabs with equivalent frame method, the stress is an average values along the depth of section, which varies with the normal service state. Compared with the results by finite element method, the results gained by equivalent frame method cannot satisfy the requirement under the normal service state. Therefore, the tendons of beamless slabs should be designed and arranged based on the results of FEM taking account into vertical load and prestressed load.

本文通过分析，认为采用等代框架法进行无梁板设计时，其内力是基于截面平均的结果，在正常使用状态与实际受力状态有很大的不同，通过对比等代框架法和有限元计算的正常使用极限状态应力可知，按等代框架法设计的预应力布置并不能保证其正常使用极限状态的要求，据此提出了应根据无梁板在竖向荷载和预应力共同作用下弹性有限元分析结果进行预应力筋布置的建议。

Are countable sets:Λ-Γ,〓-Γ are either empty or countably infinite, where Γ denotes the set of γ-limit points of f; tree map's depth of attracting center is finite and the attracting center is Γ provded all the branching points are periodic points. In chapter Ⅲ. we discuss certain relationship between isolated chain recurrent point and eventually periodic point of some continua.

主要利用树的特殊偏序关系证明了：不在周期点集闭包中的ω极限点都有无限轨迹；Ω-〓，Ω-Γ为可数集，Λ-Γ，〓-Γ或为空集或可数无限，其中Γ为f的γ极限点集；当分支点都是周期点时，连续树映射的吸引中心深度有限，且吸引中心就是Γ。

LIU Hui's Cyclotomic Method is one of the greatest achievements in the history of mathematics in China,even in the world,in which the special approach to understand the infinity and the method to solve it are presented.

有的著作认为在极限公式limx→0sinxx=1的证明中，要用到圆的面积公式S=21Lr，而对后者的证明中必须要用到重要极限limx→0sinxx=1，从而犯了循环论证的错误。魏晋刘徽的&割圆术&是对无限问题的独特认识和致用的处理方式，是为证明圆面积公式而设计出来的一种方法。

We prove that the well limit behavior can be used to get sufficient conditions for an infinite object to be limit decidable.

本文发现了统一的充分条件保证可以使用极限判定方法，这一充分条件正是形式系统序列的良极限行为。

The analysis model of nonlinear finite element of this structure is established, and the describable method of initial displacement is given. Using the analysis model, the influence of different thickness of steel web and different initial displacement on load bearing capacity and critical load of a steel concrete continuoes composite beam is analyzed.

建立了钢混凝土组合结构的非线性有限元分析模型，给出了初始挠曲的定量描述方法，分析了不同厚度腹板连续组合梁的失稳临界荷载，不同初始挠曲对相同厚度腹板的极限承载力和失稳临界荷载的影响，以及相同初始挠曲对不同厚度腹板的极限承载力和失稳临界荷载的影响

Changes of DBE activity of four cultivars had a single-peak curve, and the peak appeared in 14 d after anthesis. HPLC analysis showed that the activity of DBE to amylopectin was similar. There are two types of DBE in the wheat grains, one is isoamylase, and the other is limit dextrinase.

在灌浆过程中，淀粉去分支酶的活性均呈单峰曲线变化，灌浆中期活性最大；淀粉去分支酶对底物支链淀粉均具有相似的酶解活性；对灌浆中期小麦淀粉去分支酶进行的纯化结果表明，小麦籽粒胚乳中也存在2种类型的淀粉去分支酶，一种是以极限糊精为特异性底物的极限糊精酶，另一种是以支链淀粉为底物的异淀粉酶。

By this means the ultimate load of eccentrically compressed reinforced concrete members under different temperature can be calculated comparatively accuracy and it is verified by the experiment data.

给出了一种计算三面高温下钢筋混凝土压弯构件极限承载力的简化计算方法，通过此方法能够比较准确地计算出不同温度下钢筋混凝土压弯构件的极限承载力，并为试验数据所验证。

Results The elastic limit and the relevant enclasp force of the casting clasp made from the l 8-8 nickel-chromium alloy were smallest and those of the clasps made from the cobalt-chromium alloys in various brands were different.

结果 不同品牌的钴铬合金铸造卡环弹性极限及其相应卡抱力不同，18 8镍铬不锈钢铸造卡环的弹性极限及其相应卡抱力最低。

It was important to evaluate the ultimate bearing capacity of rectangular footings on inhomogeneous foundation under combined loading.

复合加载情况下，求解非均质地基上矩形基础的极限承载力，以及从理论上研究影响极限承载力的相关因素，具有很强的工程实用与理论参考价值。

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