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It was found that 0.25%o potassium sorbate produced a positive inhibition against short G+ spore bacillus with a concentration less than 5xl04cfu/ml. A concentration less than %o potassium sorbate hardly exerted a complete control towards short G- plump bacillus having a population density of 5x104cfu/ml. It was proved that use of l% potassium sorbute never controlled the growth of G+ coccus, G~ spirilla and enterobacter with a population density of 104cfu/ml. 1mmol EDTA completely controlled the growth of G+ short spore bacillus and G+ coccus whose cell density was 5xl04cfu/ml. A level of lmmol EDTA showed a limited inhibition against the growth of G- spirilla with a population density of 105 cfu/ml. However, a level of 10mmol EDTA completely controlled the growth of the G- spiral bacteria having a population density of 105cfu/ml. lOmmol EDTA produced a very significant control towards the growth of G"" plump short bacillus with 105cfu/ml. 20mmol EDTA showed a remarkable inhibition against the enterobacter with a population density of 105cfu/ml. Different concentrations of nisin including 25mg/mL, 50mg/mL, 75mg/mL and 100mg/mL were used as bio-preservative to examine its effects against the growth of all strains leading to the spoilage of fresh mutton meat. It was seen that there was a big difference in nisin's concentrations in inhibiting the spoiling bacteria. Generally speaking, as more as 75mg/mL of nisin significantly inhibited the growth of G+ short spore bacillus, G-plump short bacillus, enterobacter, G'spiral bacteria and G+ coccus having a population density of 105cfu/ml.

分别运用山梨酸钾、EDTA和Nisin对7种主要引起羊肉腐败的微生物进行了抑菌实验，结果显示，0.25‰以上山梨酸钾能够有效抑制5×10~4 cfu／mL以下的革兰氏阳性短芽孢杆菌的生长；1‰以下的山梨酸钾不能完全抑制5×10~4 cfu／mL革兰氏阴性粗短杆菌的生长，对10~4 cfu／mL革兰氏阳性球菌菌株、革兰氏阴性螺旋菌菌株和肠杆菌菌株抑制效果不太明显。1mmoL EDTA能完全抑制住小于10~5 cfu／mL革兰氏阳性短芽孢杆菌菌株、革兰氏阳性球菌菌株的生长，能明显的抑制10~5 cfu／mL的革兰氏阴性粗短杆菌菌株生长，对10~5 cfu／mL的革兰氏阴性螺旋菌菌株有一定的抑制作用。10mmoL EDTA能完全抑制住10~5 cfu／mL革兰氏阴性螺旋菌菌株的生长；能明显抑制10~5 cfu／mL的革兰氏阴性粗短杆菌菌株的生长，而20 mmoL EDTA能很明显抑制10~5 cfu／mL肠杆菌菌株的生长。25mg／mL、50 mg／mL、75 mg／mL和100 mg／mL的Nisin几乎对所有引起羊肉的腐败菌有抑制作用，但抑制程度不同，抑菌活性有一定的变化。

The toxicity and/or inhibition actions of some common cations are stimulatory at low concentrations but are toxic at higher concentrations.

一些常见阳离子的毒性和/或抑制行为在低浓度的时候只有刺激性，但更高浓度的时候就显示出毒性。

Inhibition of polyamines concentrations is one of the new directions to look for anticancer drugs. Mitoguazone is structurely related to polyamines and it inhibits the cellular concentrations of polyamines.

由於 mitoguazone 为多胺类结构衍生物可降低细胞内多胺类浓度，而此机转已成为抗癌药品发展新方向之一，目前陆续合成的新衍生物其各项特性皆会与 mitoguazone 做比较。

To determine the rate constants of oxidation reaction between sodium formaldehyde sulfoxylate and oxygen in aqueous solutions at different pH values, different temperatures, different buffer concentrations and different dissolved oxygen concentrations.

考查在不同PH值，不同缓冲液浓度，不同温度，不同溶解氧浓度的条件下甲醛合次硫酸氢钠在水溶液中与氧反应的反应动力学特征。

AD is characterised by decreased CSF concentrations of Abeta(42) and increased concentrations of tau.

AD的特点为脑脊液中Abeta(42)的浓度下降，tau蛋白的浓度升高。

Atmospheric pollen concentrations in a particular region vary markedly in response to geographical location, vegetational component, and various meterological parameters on many different time scales. Generally, during the 24-hour day, the highest pollen concentrations are observed at daylight, the lowest values are registered at night.

不同地区受其地理位置、植物组成和气候等多种因素的影响，空气花粉种类和浓度的变化模式有所不同，一般情况，一个地区白天空气花粉浓度高，夜晚浓度低；春夏季花粉浓度高，冬季花粉浓度低；春夏季乔木类植物花粉浓度高，而秋季草本类植物花粉浓度高。

The sizes of the self-assembly micelles of the amphiphilic block copolymers and the effects werestudied by dynamic light scattering and UV-visible spectrophotometer. The micelle sizes werelargely influenced bythe hydrophobic chain content in the copolymer, the properties of the solvent and the copolymer concentration in the organic phase. The morphology of the micelles was investigated by transmission electron microscopy. Theresults showed that the micelles appeared spheres with inner core and outer shell. The critical association concentrations were determined by pyrene monomer fluorescence probe technology. The degradability of copolymer was studied by the loss of the intrinsic viscosity in the degradation process. The results indicated that the degradation rate of PECL was slower thanthat of PELLA and PEDLLA. The stability of the copolymer micelle dispersion was examined by measuring the critical flocculation concentration, which gradually decreased with increasing the content of thehydrophobic chain in the copolymer. The rheological results showed thatthe viscosity ofthe micelle dispersion with higher content of PEG segments was firstly decreased and then increased with the increasingthe temperature. Otherwise, the variation of viscosity was irregular. The viscosity of the micelle dispersion increased with the increase of the electrolyte (Na 2SO 4) concentrations. Polymer micelles paclitaxel was prepared by self-emulsification/solvent evaporation method and solid dispersion technique with amphiphilic block polymers as the carrier material.

运用动态光散射和紫外分光光度计研究了两亲性嵌段共聚物自组装胶束的粒径及其影响因素，结果表明，自组装胶束的形成机理受制备方式的控制，胶束的粒径随着共聚物相对分子质量或疏水嵌段相对分子质量和有机相中共聚物浓度的增大而增大，随着有机溶剂的水溶性的增强而减小；采用透射电镜观察胶束的形态结构，发现胶束呈具有核壳结构的均匀球形；采用芘荧光探针法测两亲性嵌段共聚物的临界聚集浓度；通过降解过程中共聚物特性粘度的变化研究两亲性共聚物的降解性能，发现与PELLA和PEDLLA的相比，PECL 降解速率较慢；随着共聚物中疏水嵌段含量的增大，纳米分散液的稳定性逐渐下降；PEG含量高的PEDLLA纳米分散液随着温度的升高，纳米分散液的粘度先下降然后增大，反之，没有规律性，且随着电解质Na 2SO 4浓度的增大，体系粘度增大。

However, at the high concentrations, they accreted as the concentrations increase. At the middle and low concentration, the aqueous solutions formed partially amorphous glassy state.

对于玻璃化转变，中低浓度区溶液形成的是部分晶体的玻璃态，紧接着在高浓度区溶液形成完全的玻璃态。

To determine the concentrations of berberine hydrochloride,chlorogenic acid and baicalin in rabbit body fluid and their minimal inhibitory concentrations respectively,and to clarify the relationship between the heat-clearing and detoxicating function of the three Chinese herbal medicinal ingredients and their bacteriostatic actions.

测定盐酸小檗碱、绿原酸和黄芩苷在兔体液内浓度，及各成分体外最小抑菌浓度，阐明3种中药成分清热解毒功能与其抑菌作用的关系。

In this paper, the glycoprotein of dried octopus were extracted with 3 concentrations of NaCl solution and fractionated with 3 concentrations of ammonium sulfate solution. The chemical and electrophoresis property of the fractions were studied.

采用3种浓度的NaCl溶液提取章鱼干中的糖蛋白，并用3种浓度的硫酸铵盐进行分级分离，对分级的级分的化学性质和电泳性质进行了初步探讨。

Aquatic or marsh-growing fern allies; known to have existed since the Cenozoic; sometimes included in Lycopodiales.

生活于水中或湿地的蕨类；从新生代生存至今；有时归于石松目之中。

The engine was uprated from a 90hp Franklin to a 125hp Lycoming.

改良过的引擎是从90hp到125hp莱康明富兰克林。