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Based on dual scaling function and dual wavelet, the algorithm of constructing a compactly supported biorthogonal wavelet is proposed, at the same time, rigorous process of proofness and deduction is show.

应用该算法，结合函数优化方法，构造出一系列包括样条小波、接近正交的双正交小波及其它具有特殊性质的双正交小波。

The positive region based on radix sorting is used to get the positive region condition attributes set of decision attributes and the condition attribute set which excludes one of the condition attributes of decision attribute positive region. Then the difference between the two radices of positive regions is calculated to judge whether the condition attribute is a core attribute, thereby all the condition attributes are judged and the required core is quickly acquired.

采用基数排序思想计算正区域，分别得到决策属性正区域的条件属性集和除决策属性正区域的一个条件属性之外的条件属性集，并且计算这2种属性集的基数之差，以判断该条件属性是否是核属性，依次判断所有条件属性，从而快速获得所需要的核。

The aim of this thesis is to study the existence of positive solutions of boundary value problem for nonlinear second order ordinary differential equations , mainly using the fixed point index theory in a cone. The conditions of the existence of positive solutions of the boundary value problem are given in the thesis. We improve the result of the existence of positive solutions either in the sublinear or in the superlinear conditons.

本文主要利用锥上不动点指数定理，解决非线性二阶常微分方程边值问题的正解的存在性问题，并给出了边值问题正解存在的条件，改进了次线性和超线性条件下正解存在的结论。

The cause of hard agglomerate formation and its effect on sinterability were investigated. The water-washed ZrO〓-Y〓O〓 powders were found to be greatly made up of hard agglomerates. The ethanolwashed powders also contained a few of hard agglomerates because of uneffective dehydration. Beside, ethanol volatilizes in advance of water during drying because ethanol has a lower boiling point than water, so steric effects of ethanol won't act. However, nearly no hard agglomerate formed in the azeotropic distilled powders, because of effective dehydration and higher boiling point for n-butanol.

研究指出，水洗工艺所得ZrO〓-Y〓O〓粉末几乎完全由硬团聚组成；乙醇洗涤工艺的脱水效果不是很好，并且由于乙醇的沸点比水低，以致在干燥过程中残留乙醇比水先挥发，乙醇的空间位阻效应不能有效地发挥作用，因此，仍然可以导致产生一定量的硬团聚；而共沸蒸馏工艺的脱水效果最佳，且正丁醇的沸点比水高，干燥时残留正丁醇比水后挥发，从而正丁醇的空间位阻效应可有效地发挥作用，因此避免了在煅烧过程中形成Zr-O-Zr键，即共沸蒸馏粉末中不含硬团聚。

The results are showed as follow:During the birds were exposed to low temperature,the concentrations of blood calcium,blood chloride and urinous nitrogen ch...

产蛋率与血清总蛋白、无机磷呈弱负相关，与钙离子、镁离子呈弱正相关，与尿素氮、血糖呈中等正相关，与钠离子呈强正相关，与其它指标无明显相关性。

The phase diagram and the structure change of W/O→bi-continuous structure→virgulate liquid crystals→lamellar liquid crystals→bi-continuous structure→O/W studied by conductivity measurement were established for this system at 25℃.

在25℃时，作出SDS/正丁醇／正庚烷/水体系中SDS和正丁醇质量比为1：1时的拟三元相图，用电导率曲线讨论了该体系由W/O型→双连续型→棒状液晶→层状液晶→双连续型→O/W型的微观结构转变。

The combined acids , LHZZS,XDZZS and SLZZS, one of four fractions in montan resins from montan waxes from Liaohu, Xundian and Shulan brown coal respectively, were derived by CH 2N 2 to methyl esters and their chemical constituents and structural characteristic were studied on GC-MS.

结果显示，树脂结合酸均以正构烷酸为主要成份，其分布为C1 2 ～C2 8，高含量的正构烷酸集中在低碳数一端，C2 0 含量最高，其次为C1 6 ，而舒兰结合酸中，正构烷酸占绝对优势，且C1 6 为最高含量的化合物；去氢松香酸在每一个样品中含量较低，其它三环二萜酸，如松脂酸、三达松脂酸等异构体或立体异构体含量也非常低；具有五环三萜骨架的酸性物质，在潦浒、舒兰结合酸中比较丰富，其含量超过寻甸结合酸；在低碳数一端，存在着各种支链烷酸及苯甲酸、苯酚及取代物。

Correlation coefficients between ammonifying bacteria and urease, polyphenol oxidase, bacteria and phosphatase, total microbe quantity were significant at 0.05 levels, and correlation coefficients between aromatic decomposing bacteria and urease, catalase, phosphatase and total microbe quantity were significant at 0.01 levels.

相关分析表明，氨化细菌与脉酶、多酚氧化酶均呈显著正相关；芳香族分解菌与脉酶、过氧化氢酶呈极显著正相关；细菌、微生物总量分别与磷酸酶呈显著、极显著正相关。

The qualitative analysis and numerical results show that a positive period-1 solution bifurcates from the semi-trivial periodic solution through a fold bifurcation, a positive period-2 so...

定性分析和数学模拟表明，半平凡周期解通过fold分岔分岔出正周期1解，正周期1解通过flip分岔分岔出正周期2解，再通过一系列flip分岔通向混沌。

They are the strengthening-toughening of 40SiMnCrNiMoA by the critical normalizing, the fine macrostructure and property matching between the all drill rod parts, the low tendency of decarburizing and delete the weak inner hole surface owe to the drill-hole and hot-rolled with core process of rolling steel.

本文研究表明，40SiMnCrNiMoA钢亚温正火强韧化特性、亚温正火使钎杆整体性能良好地匹配、较小的脱碳倾向和钻孔法消除钎杆内孔粗糙和脱碳表面是钻孔法并整体780℃亚温正火+钎柄淬火和低温回火的H22-40SiMnCrNiMoA锥体连接小钎杆延寿的主要原因。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。