谱性

Paralytic shellfish poisoning ; HPLC ; shellfish ; alongshore sea area of the Guangdong Province

麻痹性贝类毒素；高效液相色谱；贝类；广东近岸海域

The relative standard deviation in area obtained from time mode for berberine hydrochloride,antipyrine,sulfadimidine and sulfadiazine is 42.5%,44.5%,42.9%,45.0%,respectively.

在阐述了这种记录模式优点的基础上，用常用的硼砂和磷酸盐体系在不同的电压和固定电压下分离了4种药物，其迁移时间的相对标准偏差分别在41.5和1.90％以上，而相应的电通量的标准偏差都在1.05％以下，这进一步从实验角度证实了电通量域模式记录电泳谱图的优点：具有极强的抗电场强度波动和温度波动的能力，提高了再现性。

The effects on optimizing of the reflected spectrum were studied in detail based on various parameters of algorithm. And stability, astringency and accuracy of the algorithm were discussed.

实验详细研究了算法各参数对反射谱寻优的影响，并讨论了算法的稳定性、收敛性和准确性。

In the present study, we examined the large-scale gene expression profiles with six sets of matched clinical and experimental fluconazole susceptible and resistant C. albicans strains by microarray analysis. We observed that azole resistances developed in multiple circumstances are all associated with increased expression of CDR mRNA. We also identified some common differential expressed genes and some interesting function-linked gene groups involved in drug-resistance.

利用所构建的基因芯片我们研究了共六对氟康唑敏感和耐药白念珠菌配对菌株的大规模基因表达谱，证实不同环境下产生的白念珠菌耐药性均与多药耐药基因CDR的mRNA表达增加有关，并从中鉴定了一些与药物耐受性相关的共同差异表达基因和一些有趣的功能连锁基因群。

Methods: The twelve volatile halogenated hydrocarbons (1, 1-dichloroethene, dicloromethane, trans-1, 2-dichloroethene, cis-1, 2-dichloroethene, chloroform-1, 1, 1-trichloroethane-1, 2-dichloroethane, tetrachloromethane, bromodichloromethane, dibromochloromethane, tetrachloroentene and bromoform) in drinking water were determined by headspace capillary gas chromatography.

采用顶空毛细管柱气相色谱法测定饮用水中1，1-二氯乙烯、二氯甲烷、反－1，2-二氯乙烯、顺－1，2-二氯乙烯、三氯甲烷、1，1，1-三氯乙烷、1，2-二氯乙烷、四氯化碳、一溴二氯甲烷、二溴一氯甲烷、四氯乙烯及三溴甲烷等12种挥发性卤代有机物。

Methods: Forty-three indiviuals who were exposed to arsenic more than 0.05mg/L in well water were chosen and the vein blood and morning urine was collected; The MTHFR C677 polymorphism was analyzed by PCR-RFLP method; Urinary inorganic and methylated arsenic were speciated by high performance liquid chromatography combined with hydride-generation atomic fluorescence spectrometry; Microbiological assay was used to estimate serum folate.

在砷中毒流行区选择饮水史清楚、饮水砷含量高于0.05mg/L的43名居民，采集空腹静脉血并收集晨尿，以聚合酶链反应－限制性长度多态性方法分析MTHFR基因C677T位点多态性，采用高效液相色谱－氢化物发生－原子荧光法检测尿中各种形态的砷，采用微生物法测定血清中叶酸水平。

Two outstanding fusants SR-7 and SR-T19 were chose out in the fusion group 90-11×FR-008, the former produces not only antibiotics the parents produced but also a new antibiotic effective gainst a wide range of both gram positive and negative bacteria, which the parents could not produce, and its product of the 37℃ fermentation was very effective against the cotton seedling damping off caused by Rhizoctonia sonali while product of the 26℃ was effective agaist the bacterial rots of turnip and Chinese cabbage; the latter have a much stronger activity against a wide range of fungi and yeasts than the parents.

在90-11×FR-008融合组合中，筛选获得2个优良融合子SR-7和SR-T19，前者除产生亲本产生的抗生素外，还产生亲本不产生的一种新的具有广谱抗细菌活性的碱性水溶性抗生素，防病试验表明，其37℃发酵产物对棉花苗期立枯病具有良好的防治效果，28℃发酵产物对萝卜和大白菜具有明显的防腐作用；后者与亲本FR-008的抗菌谱完全一致，但其活性强度都超过了FR-008；采用RAPD分子标记技术检测了SR-7和SR-T19与亲本的同源性及彼此间的差异，从而首次直接从DNA分子水平上验证了链霉菌的原生质体融合子及其遗传重组的多样性。

Too much emphasis has been laid on thephase coherence detection using the arithmetics of auto-correlation in time domain,spectrum analysis in frequency domain and feature extraction of intra-pulse modulatedsignals employing the methods of quadrature in time domain、Short Time FourierTransform、Wigner-Ville Distribution and Radon-Wigner Transform.

本文详细介绍了脉冲多普勒雷达的原理及其信号特征、相参性原理、脉内调制信号、时频分析理论和模式识别理论等，重点讨论了利用时域自相关法和频域谱线分析法进行相位相参性的检测；详细分析了脉内调制特征提取的几种方法，主要包括时域正交、短时傅立叶变换、维格纳分布和 Radon-Wigner 变换。

Then quality upgrading scheme was explored in order to solve the high content of sulphur and nitrogen in pyrolytic oil, low flash point as well. Yields of pyrolysis of scrap tires in a pilot-scale rotary kiln under 550℃were firstly summarized. Then elemental composition and physiochemical properties were analyzed on both pyrolytic crude oil and its fractions. Based on these researches, the feasibility that pyrolytic oil is used as fuel was discussed. From FT-IR spectra the functional group compounds were generally acquainted, and by column chromatography analysis chemical compositions were clearly known. Then through GC analysis the absolute content of BTX in pyrolytic crude oil was defined.

本文首先考察了中试回转窑550℃下的废轮胎热解产率及热解原油的元素组成和理化特性，对其作为燃料使用的可行性进行了分析；通过实沸点蒸馏研究了轻质、中质馏分热解油的基本特性：红外分析得出了有代表性馏分热解油的大致官能团组成形式，对热解油的强芳香性和部分不饱和性有了整体了解；化学族组成分析进一步了解了热解油内在化学族组成和含量，对热解油的内在性质有了更为深入理解；气相色谱分析对热解油中富含的苯、甲苯和二甲苯进行绝对定量，为热解油提取BTX化工原料的经济性提供了参考。

It was found that SEC can not improve the kinetics of refolding yet.

但它与其它吸附模式的色谱方法一样，能够提高复性产率，但并不能加快复性的动力学。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。