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The good results can be obtained with the newalgorithm; the local minimal can be avoided in some degree. In this paper, neural networks also were applied to quantitativestructure-property relationships analysis:1Studies on the toxicity of aniline, nitrobenzene and phenol derivatives and their structures.2 Studies on HEPT compounds for their anti-aids.3 Studies on nitrogen mustards and 2-formylpyridine thiosemicarbazone compounds for their anti-cancer.4 Studies on phenol and aniline derivatives for their gas chromatographic retention values.5 Studies on discrimination of tea by Self-organizing feature map network.

本论文还利用上述方法进行了一些定量结构活性相关性研究,主要内容: 1环境中有毒有害有机物的定量结构活性相关性研究。2抗艾滋病类药物定量结构活性相关性研究。3抗肿瘤类药物(氮芥子气类化合物和2-甲酸吡啶缩氨基硫脲类化合物)定量结构活性相关性研究。4苯酚和苯胺类衍生物色谱比移值预测。5将神经网络用于茶叶的分类。

Headspace GC is used for the analysis of volatiles and semi-volatile organics in solid, liquid and gas samples.

气相色谱顶空是用于挥发性和半挥发性有机物分析固体,液体及气体样本。

A purge and trap-gas chromatography-mass spectrometry method for determination on the vola- tile organic compounds of materials in contact with food was developed.

本文建立了使用吹扫捕集-GC/MS法对食品接触材料中挥发性有机物进行定性确证分析的方法。

Buried GaAs/Al〓Ga〓 As quantum wire arrays grown by metal-organic chemical vapor deposition on V-grooved GaAs substrates.

二、用金属有机物化学气相淀积在GaAs V字形沟底制备的掩埋GaAs/Al〓Ga〓As量子线列阵。

The systemic research of toxic organic compounds and organic molecular tracers are significantly important for treatment and control of urban air pollution.

开展有毒有害有机物及不同污染源有机示踪化合物的系统研究,对城市大气污染的治理具有重要的意义。

Although Ag has highest reflectivity among metals, it is not an ideal anode for TOLED, because of its low work function (-4.3eV).

但是Ag与有机物之间存在着偶极子势垒,且银本身的功函数小,与NPB的HOMO能级存在较大的能级差。

In order to obtain the processing parameters of high speed depositing nickel film, experiment was undergone by metallic organic chemical vapor deposition with nickel carbonyl as precursor.

为了获得高速沉积镍膜的工艺参数,以羰基镍 [Ni 4 ]为前驱体,用金属有机物化学气相沉积法进行试验,以SEM ,DSC ,XRD测试分析技术探讨了载气、温度和羰基镍的摩尔分数对沉积速率的影响;也探讨了温度及羰基镍的摩尔分数对镍膜微观形貌的影响。

But a product must contain at least ninety-five percent of all materials to be called organic.

但是一个产品的原材料必须至少百分之九十五是有机物时才能被称为有机产品。

But a product must contain at least ninety-five percent organic materials to be called organic.

但是产品必须包含95%的有机材料才能被称为有机物

Influence of water quality varies with water tank materials The article makes a comparison of six types of water tanks made from different materials after physical chemical and organic inspection The result shows that the water quality in SMC tanks is stablest .

不同材质水箱对水质的影响不同,本文论述了对六种不同材质水箱储水进行物理,化学和有机物检测对比,表明SMC玻璃钢水箱的储水质量最为稳定。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。