特征浓度

对含Cr（Ⅲ）量为25ng/ml试样溶液进行十次平行测定，相对标准偏差为5.9%，特征浓度为2.4ng/mLCr（Ⅲ），十多种共存离子不干扰测定。

Ten parallel tests of determing a sample solution containing 25 ng / ml Cr ( III ) gave a relative standard deviation of 5.9 % . The characteristic concentration was 2.4 ng / ml Cr ( III ) . More than 10 foreign ions did not interfere the determination .

对样品处理条件、特征浓度进行了考察。

The treatment conditions of sample and the characteristic concentration have been studied .

测定Fe和Zn的特征浓度分别为0.18和0.051μg/mL/1%；回收率分别为98.5%101.3%和98.0%102.5%；

The characteristic concentrations for Fe and Zn are 0.18 and 0.051 (μ g / mL / 1 % ) with the average recoveries of 98.5 % 101.3 % and 98.0 % 102.5 % and RSD ( % ) of 0.40 % and 1.60 % , respectively .

方法的检出限为0.022×10~（-■），特征浓度为0.014μg/ml，可测定地质样品中0.0X×10~（-6）以上的银量。

The detection limit and special density by this method are 0.022 × l0 ~ ( - 6 ) and 0.0l4 μ g / ml respectively . The silver content over 0.0X × 10 ~ ( - 8 ) in samples can be determined .

对样品处理条件、背景吸收干扰、出限及特征浓度进行了考察。

The pretreatment conditions of sample , background absorption interference , the detection limit and characteristic concentration were investigated .

对非完全消化法样品处理条件、悬浮液的稳定时间、检出限及特征浓度进行了考察。

The pretreatment condition of sample in non-complete digestion method , the stabilization time of the suspension , the detection limit and characteristic concentration were studied .

用MIP&AAS方法测定银的线性范围为3个数量级，特征浓度0.04μg/ml，检出限0.006μg/ml。

The linear range of three orders of magnitude , characteristic concentration of 0.04 μ g / ml , and detection limit of 0.006 μ g / ml are obtained .

建立了基于热解动力学方程和特征浓度的有限空间轰燃预测模型，并给出了计算实例。

Based on the thermal degradation kinetic equations and the characteristic concentration , the flashover forecast model for limited space was set up . Finally , a case was presented by this model .

当贫焰捕集和富焰释放时，锌的灵敏度最高，其特征浓度为9.1×10~（-5）μg/ml。

The best sensitivity was obtained when fuel-lean flame and fuel-rich flame were used for collection and release respectively . The characteristic concentration is 9.1 · 10 ~ ( - 5 )μ g / ml.

用10000μg/ml铝溶液喷涂石英管，使锌的灵敏度提高5倍，特征浓度是1.8×10~（-5）μg/ml。

The sensitivity of zinc may be increased 5-fold by precoating the quartz tube with 10000 μ g / ml aluminum solution . The characteristic concentration is 1.8.10 ~ ( - 6 )μ g / ml.

利用建立在界面极化理论基础上的介电模型对介电谱进行了解析，获得了特征浓度极化层构造的参数和体系的其它相参数。

The data on the dielectric relaxation spectroscopy were analyzed by using an dielectric model based on the interfacial polarization theory , the structural parameters of the concentration polarization layer and the capacitance and conductance of the bulk solution phase were obtained .

给出了局部基的刻画，并讨论了连续Domain的特征、浓度与连续Domain带上Scott拓扑或Lawson拓扑时的拓扑空间的特征、浓度之间的关系。

The relations between the character and density on a continuous Domain and that of the related topological space with Scott topology or Lawson topology are discussed .

呼吸气体中苯乙烯，癸烷，十一烷等22种有机挥发性（VOCs）特征气体浓度测试便是一种很有前景的肺癌无创伤诊断与监护方法。

It is a promising method for lung cancer diagnosing by measuring 22 kinds of volatile organic compounds ( VOCs ) in the exhalent breath , such as styrene , decane , n-undecane .

长江口南港底沙再悬浮特征及其浓度预测

Feature and Concentration of Bed-sediment Re-suspension in the South Channel , Yangtze Estuary , China

呼吸气体诊断是一种无创诊断技术，通过检测呼吸气体中的特征成份及浓度实现对病人的诊断和筛选，是一种很有前景的疾病诊断与监护方法。

Breath Diagnosis is a noninvasive diagnostic technique .

在部分水解的聚丙烯酰胺水溶液中加入无机盐，测量并计算了分子扩张因数，特征粘度与盐浓度、盐离子价数、溶液pH值的关系。

Different inorganic salt was added to polyacrylamide ( Separan AP30 ) aqueous solution . Thd molecular expansion factor , intrinsic viscosity were measured and calculated at various salt content , ionic valence and pH value of the solution .

中尺度流场特征与So2浓度的关系

The relation between the concentration of sulphur dioxide and the meso-scale wind field

棉花花后果枝叶生物量和氮累积特征及临界氮浓度稀释模型的研究

Accumulation Characters of Biomass and Nitrogen and Critical Nitrogen Concentration Dilution Model of Cotton Fruit-branch Leaf after Flowering

丝素微胶囊具有良好的物理结构特征，但不同浓度的壁材具有不同的结构特性，并影响微胶囊的释放特性。

The microcapsule 's physical structure will change with the concentration of the silk fibroin , which may affect its release ability .

结果：补骨脂中补骨脂素和异补骨脂素在鼻粘膜的吸收符合零级动力学特征，随着药液浓度的增加，补骨脂素和异补骨脂素的吸收存在饱和现象。

Result : The nasal absorption of psoralen and isopsoralen fitted in with zero order kinetics , getting saturated with the increase of concentration .

以分析结果为分析辐射收支特征及气溶胶质量浓度特征提供天气气候背景。

To analyze the results for the balance of payments characteristics of radiation and aerosol concentration to provide weather and climate characteristics of the background . 2 .

目的分别考察芍药苷在大鼠各肠段的吸收动力学特征及不同药物浓度对其的影响。

OBJECTIVE To investigate the absorption kinetics of paeoniflorin at different intestine segments of rats and the influence of the drug solution concentration on the absorption kinetics .

应用获得的实验数据研究了气固循环流化床中气固流动特征量（颗粒浓度、颗粒速度、颗粒通量）的轴向及径向分布规律。

According to the experimental data , the axial and radial distributions of the hydrodynamic characteristics ( solids holdup , solids velocity , and solids circulating flux ) were studied .

结论丙戊酸镁缓释片与其普通片比较具有缓释特征，血药浓度稳定，其生物利用度与其普通片剂相似。

Conclusions Compared with common tablet , magnesium valprote extended action tablet has the character of extending action , the concentration is steady , and the biological availability is similar to common tablet .

从碱渣来源分析碱渣污染物特征和游离碱浓度，提出用硫化氢废气中和碱渣回收粗酚、硫化碱的处理工艺。

According to source of alkaline residue , its pollutant specificity and free-alkaline concentration were analyzed . A treatment process to reclaim phenol and neutralize sodium sulfide with hydrogen sulfide gas and alkaline residue was put forward .

本文通过在长江口水域进行的现场受控培养实验，对长江口浮游植物种群特征以及对不同浓度氮、磷和不同光照梯度耦合作用下长江口浮游植物营养盐吸收动力学和生长的变化进行了研究。

Characteristics of phytoplankton population , the nutrient absorption kinetics and growth variation of phytoplankton were studied in this dissertation based on in situ controlled incubation experiment , which were conducted under the coupling between different nutrient concentration and different irradiance in the water region of the Changjiang River estuary .

利用动态模糊神经网络理论建立火灾早期信号探测系统模型，并进行模式的识别，根据特征气体及特征烟雾的浓度及变化率进行分级预警。

Using the Dynamic Fuzzy Neural Network theory to construct early fire signal classification pre-warning system model , make pattern recognition and detect the gas of early fire .

接下来分析了夏季污染物浓度变化特征：北京市夏季近地层臭氧浓度有明显的日变化特征，夜间浓度很低，白天浓度迅速增加，在午后达到峰值。

Then the characteristics of pollutants were analyzed : ozone concentration varied remarkably in summer in Beijing , it 's concentration is very low at night , then rise quickly at daytime and reach peak at afternoon .

针对部分典型特征值样本可以标定的特点，基于SVM多分类器论证了采用特征值建立烟气浓度分级模型的可行性。

As some typical features sample of smoke images can be labeled , smoke concentration grades model is set up by SVM multi-classifier , which proves its feasibility to build model based on imge features .