1、

Hydroxy-terminated ladder-like polysiloxane was synthesized from ethylene diamine and monomethyltrichlorosilane by stepwise coupling polymerization.

以乙二胺和甲基三氯硅烷为主要原料,通过逐步偶联聚合制备了梯形聚硅氧烷(PMSQ);

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2、

The enzyme activity recovery rate was about 33%. The stepwise purification of the enzyme had similar results as the gradient method, but was more convenient for handling large volumes of cell supernatants.

批量处理纯化重组保幼激素酯酶时酶蛋白活力回收率33%,效果与梯度分离方法相当,但简便快速,可作为大量分离纯化的第一步。

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3、
4、

The magnetization hysteresis shows a single loop with stepwise shape at weak dipolar interaction region.

在偶极相互作用较弱时,磁滞回线显示了一个阶梯式的环状结构。

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5、

This article provides a process for preparation of farinfrared ceramic functional polyester by means of interrupted stepwise from dimethyl terephthalate, ethylene glycol, farinfrared ceramics powder as modifier.

本论文以对苯二甲酸二甲酯(DMT)、乙二醇(EG)为原料,远红外陶瓷粉作改性剂,采用间歇式聚合方法合成远红外功能聚酯。

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6、

Then the stepwise propagation of a growing creep crack is analysed by fracture mechanics. The analytical result is in good agreement with the experimental data on Astroloy with wavy and smooth grain boundaries.

用断裂力学分析了蠕变裂纹的台阶式扩展,其结果与弯曲品界和平直晶界Astroloy合金的试验结果吻合良好。

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7、

Prediction of maximal oxygen uptake in 42 sportswomen by a stepwise multiple-regression technique

用多元逐步回归方法预测女短跑和女短距离游泳运动员的最大吸氧量

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8、

Methods QOL of 260 patients with CHB and 260 healthy controls were evaluated by Mos SF 36, and QLI scores, single and multiple stepwise regression analysis were made to assess the factors affecting QLI.

方法采用SF36量表,对260例慢性乙型肝炎患者和260例正常对照进行QOL测量与评价,并对QOL的影响因素进行单因素分析和多因素逐步回归分析。

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9、

The nation open policy of 3.5G frequency used access net, invite public bidding work is processing stepwise for working frequency, soever conventional telecom company, or jumped-up company, all active be concerned with tender for frequency.

国家明确了开放3.5GHz用于接入手段的政策,运营频率招标工作正在逐步开展中,无论是传统的基础电信运营商,还是新兴的增值业务运营商,都积极参与国家的频点应标工作。

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10、

Stepwise Logistic regression analysis indicated that young gestational age ( GA), oxidosis, hypocapnia and infections were the significant risk factors associated with the development of ROP. In the process of normative use of oxygen, ROP was only present in first or second phase.

Logistic回归分析结果显示低胎龄、酸中毒、低碳酸血症及感染是影响ROP发生的显著因素,治疗过程规范用氧后,ROP仅发生在1、2期病变。

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Results There were significant correlations among BBS, FMB and FIM scores on admission and at discharge. Stepwise regression analysis revealed that FIM, ADL and BBS scores on admission predicted the functional outcome.

结果简单线性相关分析提示BBS、FMB得分与入院、出院FIM得分有较强的相关性,逐步回归分析发现入院时FIM、ADL、BBS评分可以预测脑卒中患者出院时的功能结局。

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12、

The structure of grasshopper community in different environment in Luo River region was compared using species-abundance model, diversity index, similarity analysis, principal component analysis and stepwise regression.

应用种-多度分布模型、多样性指数、相似性分析、主成分(PCA)分析及多元逐步回归等方法比较了洛河流域不同生境的蝗虫群落结构。

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13、

Most computer programs introduce or delete the dependent variables in a stepwise manner.

大部分计算机程序均以逐级计算方式来输入或删除某些应变量.

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14、

A novel ladderlike polysiloxane with a reactive side group was synthesized via stepwise coupling polymerization.

通过“逐步偶联聚合方法”设计合成了一种含有反应性侧基的梯形聚有机硅氧烷。

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15、

A novel kind of ladderlike polysilsesquioxane having side-chain with chloropropyl terminal group was prepared by "Stepwise Coupling Polymerization".

通过“逐步偶联聚合法”,合成了含氯丙基侧基的梯形聚倍半硅氧烷。

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16、

Principal component-stepwise regression algorithm was proposed for the determination of pulp kappa number by near-infrared spectroscopy.

主成分 - 逐步回归法用于纸浆卡伯值的近红外光谱法测量建模.

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17、

Stepwise solvent extraction of low temperature pressed cottonseed cake with hexane and methanol

棉仁低温压榨饼己烷/甲醇分步浸出工艺研究

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18、

The morphological patterns that characterize the postcranial anatomy of bovid species from each habitat type were identified with stepwise canonical discriminant analysis and decision trees, a technique based on machine learning.

利用逐步分辨分析方法和一个基于机器学习的决策树方法鉴别了每种生境中牛科动物颅后解剖结构的形态特征。

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The result of stepwise regression analysis showed that many factors ( including heredity, nutrition, physical activity, birthweight, starting time of independent walk, child's attender and paternal occupation) may influenced the constitution of children.

对影响体质的有关因素进行了逐步回归分析。结果表明:学前儿童体质受遗传、营养、体育锻炼、出生体重、开始独立行走时间、儿童的主要照顾者及父亲职业等多方面影响。

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