查询词典 normalization factor

Analysis of the archives data of Hetian region during the Republic of China showed that this time water resources basically maintained on a stable level, and it was not the decisive factor to the waste of local big area tilth, but the essential factor actually restricted the population quantity, the reclamation wasteland scale and the overall cultivated area level in all the counties.

地区人口增长过多引发对地区耕地面积的需求扩大，同时引起对耕地灌溉水量的增长需求扩大，由此呈现出农田灌溉水不足的表象，造成地区人口、耕地水平与水资源承载力相互关系的失调；即影响和田地区耕地撂荒的关键是当地水资源总量与人口规模、耕地面积总水平的平衡关系，突破这个平衡就必然引起耕地的撂荒或生态环境劣化；而诱发耕地大面积撂荒的自然因素也与过度垦荒有一定程度的关系。

With fixed size of data table, computational speedup factor increases with increament of tolerance error. With same tolerance error, speedup factor of node deletion approach is higher than that of global deletion.

当数据表数据容量一定时，计算的加速比随控制容差的增加而增加，在相同的容差条件下，节点删除算法比整体删除算法加速效果明显。

The forgetting factor was optimized by reducing the trace of the input error covariance matrix. This factor is able to modify the iterative learning law of control input. The error signal of the feed-forward learning controller was filtered by a zero-phase FIR digital filter.

通过减小系统输入误差协方差矩阵迹的方式得到优化的遗忘因子，来修正控制输入的迭代学习律，同时采用零相位FIR数字滤波器对前馈学习控制器中的误差信号进行滤波处理。

PCA is to perform the variable transformation, whereas factor analysis needs to form a factor model.

主元分析只是进行一定的变量变换，而因子分析则需构成因子模型。

The transformation had its external factor such as the change of the social situation at that time, however, the logic of YUAN's thinking was its principal factor.

这种转变的发生，既有当时社会形势的变化等外在原因，但更主要的是袁氏思想发展的内在必然。

Therefore, it will of be of great clinical significance in preventing the transformation from TIA to cerebral infarction to intensify the study of the risk factor of high-risk TIA, to identify the risk factor for the transformation from TIA to cerebral infarction, and to make a individualized therapeutic regimen.

因此加强对高危TIA危险因素的研究，明确影响TIA发展至脑梗死的危险因素，有针对性的制定个体化治疗方案，对有效控制TIA向脑梗死转化有非常重要的临床意义。

Aims: To investigate the expression and significance of epidermal growth factor receptor, cyclooxygenase-2 and trefoil factor 1 in the carcinogenesis of gastric mucosa.

目的：探讨表皮生长因子受体、环氧合酶-2和三叶因子1在胃黏膜癌变过程中的变化规律及其意义。

We introduce some concepts, such as yon Neumann algebras, factor von Neumann algebras, nest algebras and so on, and give some well-known theorems that we will use in this paper. In Chapter 2, we put our attention on linear maps that preserving zero Jordan triple product on nest subalgebrasof factor yon Neumann algebras.

第二章首先对因子von Neumann代数中套子代数上保Jordan三重零积的线性映射进行了研究，证明了从因子von Neumann代数中套子代数到任一有单位元的Banach代数的保Jordan三重零积的单位线性双射是Jordan同构。

So far, the cancerogenic mechanism of lung cancer is not well elucidated. Some growth factors and growth factor receptors have been identified to participate in cancerogenic processes, but the downstream pathways regulated by those growth factor receptors are uncleared.

目前已知的癌症发病机理多是生长因子和生长因子的表面受体发生异常所致，因此，进一步阐明受体下游的调控基因对于阐明癌症的发生机理和进一步设计药物靶位点都是十分有意义的。forkhead box P4(FoxP4)就是本文作者在利用生物信息学方法筛选人类心脏发育候选基因的过程中发现的一个人类新基因，目前发现三种转录本。

The flood disaster in this area had the characteristics as unexpected strong, difficulty of prediction and prevention, destructive, in large quantities, uncurbed focus and so on. 2 There were two main reasons that leaded to flood disaster in QinBa Mountain area: natural factor and human factor.

该区洪水灾害具有突发性强，预测预防难度大、成灾快、破坏性强、数量大、成灾范围集中等特点； 2秦巴山地区产生洪水灾害的原因主要有两方面：自然因素和人为因素。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。