factor of direct product

To study the subdirect product of regular *-semigroups,to introduce the concept of pure covers of regular *-semigroups and to obtain pure cover theorem of regular *-semigroups in terms of subdirect product of regular *-semigroups,these results enrich that of pure cover on some semigroups.

对正则*-半群的子直积的研究中,引入了正则*-半群的纯覆盖的概念,借助于正则*-半群的子直积得到正则*-半群的纯覆盖定理。

In this paper,a construction of all subdirect products of regular *-semigroups is obtained.

给出正则*-半群的子直积的构造。

In section 3, a construction of all subdirect products of regular *- semigroups.

第三节给出正则~*-半群的子直积的构造。

By using P-subdirect product,rather than using induction and properties of the least right cancellative congruence on a left normal type A monoid,it is proved that P-subdirect product of right cancellative monoids and left normal bands that is a proper left normal type A monoid.

利用P-子直积以及左正规型A幺半群上的最小右可消同余的性质,证明了右可消幺半群和左正规带的P-子直积是一个真左正规型A幺半群;反之,真左正规型A幺半群可以分解成右可消幺半群和左正规带的P-子直积。

Analysis of accumulation factors in the calculation of wieghts and application;

层次分析积因子位次赋值求权重方法及应用

In this paper,we bring forward a kind of modified accumulation factor instead of traditional AHP.

本文针对传统的层次分析法,提出了一种改进的积因子方法,采用算术平均数赋值方法代替专家打分,最大程度上避免了主观判断可能造成的决策失误。

This paper overcomes the deficiency of traditional analytic hierarchy process(AHP) through which the obtained weight factors are too subjective,and brings forward a new method by combining accumulation factor method and AHP,that is called analytic hierarchy process using accumulation factor to evaluate weight factors.

克服传统层次分析法确定因素权重主观性太强的不足,结合积因子方法给出了积因子赋值求权重层次分析法,并利用该方法对黑龙江省各城市按可持续发展指标进行排序,得到符合实际的结果。

Analysis of accumulation factors in the calculation of wieghts and application;

层次分析积因子位次赋值求权重方法及应用

Kinetic energy factor-hydrops height method of diagnosing situation of bottom hole liquid loading in gas well

动能因子-积液高度法诊断气井积液

The trace of a product of two factors is independent of their order.

两因子的乘积的迹不依赖于因子的次序。

A new factor appears under the integral sign.

积分号内出现了一个新的因子。

The Condition of Equivalence and Implication for the Existence of the First Class Integrating Factor;

一类积分因子存在的充要条件及应用

The New Existence Theorem Of Complex Integrating Factor and Its Application;

新复合型积分因子的存在定理及应用

Two special integrating factors of a non-complete differential equation;

一个非恰当方程的两类特殊积分因子

A Sufficient and Necessary Condition of Pufa Equation to Possess Integral Factor;

普法方程有积分因子的一个充要条件

Research on the Model of Matched Springboard in the Stretching Stage of Jumping;

积极蹬伸“合板”的模型探究和因子分析

Existence Conditions of Integrating Factors for First Order Ordinary Differential Equations

一阶常微分方程积分因子存在性条件

The solution of first order ordinary differential equation with the integral factor of a product form

一阶常微分方程具有一种乘积形式积分因子的求解

Regulation Gene of the Skeletal Muscle Growth in Animals and the Adipose Aggradation in Pigs;

动物肌肉生长调控因子基因和猪脂肪沉积调控基因的研究

The reason for this is that, when it gets hot, the volume of water increases.

原因是，瓶子一受热，瓶内水的体积便膨胀。

Effect of Meteorological Factors on Areas of Masson Pine Caterpillar

气象因子对马尾松毛虫发生面积的影响

GENESIS AND ENVIRONMENTAL SIGNIFICANCE OF BEACH RIDGE CAPPED WITH EOLIAN SNAD ALONG TAOZI BAY, JIAODONG PENINSULA

套子湾沿岸加积型滩脊成因及其环境意义

Work tips:Without some positive energy, Scorpio can go to extremes.

工作：如果缺乏积极因素，蝎子可能走向极端。

Studies on the Change of Phytic Acid Accumulation and Its Response to Environmental Factors in Barley Grains;

大麦籽粒植酸的积累动态和环境因子反应研究

Cumulative Impact Study of Cascade Reservoir on River Ecological Factors;

梯级水库对河流生境因子的累积影响研究