查询词典 standard deviation

Results Well-resolved, reproducible 2-DE profiles of human colon carcinoma tissues and paired normal tumor-adjacent colon tissues were obtained. For colon carcinoma tissues, a total of (980±28) spots were detected; for paired normal tumor-adjacent colon tissues,(860±45) spots were detected. For normal tumor- adjacent colon tissues, the average deviation of spot position was (10.487±0.11) mm in IEF direction and (0.944±0.12) mm in SDS-PGE direction; for colon carcinoma tissues the average deviation of spot position was (0.654±0.11) mm in IEF direction and (1.20±0.22) mm in SDS-PGE direction. Number of differentially expressed proteins was 72.00±12.34 between colon carcinoma and paired normal tumor-adjacent colon tissues.

结果 建立了结肠癌及正常肠组织的双向凝胶电泳图谱，其中癌旁正常结肠组织和结肠癌组织电泳图谱中平均蛋白质点数分别为860±45和980±28；癌旁正常结肠组织和结肠癌组在IEF方向上的平均偏差分别为(0.487±0.11)mm和(0.654±11)mm，在SDS-PAGE方向上的平均偏差分别为(0.944±0.12)mm和(1.20±0.22)mm，结肠癌与癌旁正常结肠组织的差异表达蛋白质点数为72.00±12.34。

Result］ The correlation coefficient of standard curve by atomic absorption spectrometry was 0.997 4-0.999 5, the relative standard deviation was 0.36%-2.80% and the recovery was

结果］ 原子吸收光谱法测定的标准曲线相关系数为0.997 4~0.999 5，相对标准偏差为0.36%~2.80%，加标回收率为

The correlation rate of the standard curve was 0.999 8, and the digestion duration was 15 min at the temperature of 150℃. The relative deviation of the results were less than 2%, and the standard error was between 5% and 6%.

结果 标准曲线的相关系数r=0.9998，消解时间15 min、温度150℃，测定结果的相对标准偏差小于2%，相对误差在5%~6%之间，精密度与准确度均能满足要求。

To accelerate the widespread of Synchronous Chip Seal and improve the operation quality of Synchronous Chipsealer, key techniques which influence the operation quality is studied detailedly, including the control of distributing quality, the dynamics characteristics of hydraulic system and the spray characteristics of asphalt nozzle of Synchronous Chipsealer.1 The factors which influence Synchronous Chip Seal quality are studied. Fiducial probability of simultaneous distribution density is advised to be used in evaluating the distribution bias and standard deviation of asphalt and aggregates simultaneously, which is more advanced than the single index evaluation method used before.2 The volume efficiency formula of asphalt pump is revised after analyzing the data of volume efficiency with mathematical statistics, which is helpful to match the asphalt spray system and control the flow out of asphalt pump accurately. With equation deduction and experiment, dynamic of hydraulic system used in Synchronous Chipsealer is studied, which lay the theory foundation on improving the stability and efficiency from design and controlling.4 Simulation on hydraulic system used in Synchronous Chipsealer is done with AMESim; the results indicate that multi-circle parallel connected hydraulic system with constant pressure power is better than that with load-sensing pressure power at present, because the latter will oscillate when the multi circles work at the same time. This conclusion has been proved during the debug of Synchronous Chipsealer.5 Asphalt nozzle characteristics, such as flat jet shape, flow distribution, are studied with experiment, the results indicate that cross quality of asphalt distributing is not increased linearly follow the increase of fan overlap level, the best point usually exists between two whole overlap level, asphalt distributing quality is better than±4% at the 2.5 overlap level, meets the superior specified in standard; The distribution quality of Synchronous Chipsealer can be increased by spray asphalt of different flow rang with nozzle of different diameter

为了加快同步碎石封层技术的推广，提高同步碎石封层设备的作业质量，本文对同步碎石封层设备作业质量的影响因素与控制方法、液压系统的动力学特性和沥青喷嘴的喷洒特性等关键技术进行了深入细致的研究：1研究了影响同步碎石封层作业质量的因素，提出了采用联合密度分布置信概率对同步碎石封层中沥青洒布量和碎石撒布量的系统偏差和标准差指标进行综合评价的方法，克服了传统评价方法只能对单一指标进行评价的缺陷；2采用数理统计的方法，研究了沥青泵的容积效率特性，修正了沥青泵容积效率公式，为沥青喷洒系统的匹配和沥青泵出口流量的精确控制提供了依据；采用数理方程推导与试验相结合的方法，研究了同步碎石封层设备液压系统的动力学特性，为从设计和控制的角度提高同步碎石封层设备液压系统的稳定性和效率奠定了理论基础；3运用AMESim软件对采用负载敏感控制和恒压控制的两种同步碎石封层设备液压系统进行仿真，结果表明：负载敏感控制的并联液压系统在多回路同时工作时，由于液压泵排量控制参考压力不稳定，容易引发液压系统振荡，恒压控制的并联液压系统是目前技术条件下比较理想的同步碎石封层设备工作装置驱动方案；该结论亦通过同步碎石封层设备装机试验得到了验证。4采用试验的方法对沥青喷嘴的喷洒特性进行了研究，结果表明：沥青洒布的横向精度并不是随着喷洒扇面重叠度的增加线性增加，其最高点通常出现在二个重叠度之间的"半重叠位置"，"2.5重叠"洒布时，沥青的横向洒布精度≤±4%，可以达到国家相关标准中的优级标准；同步碎石封层设备还可以根据不同洒布量情况下的流量需求，采用不同通径的喷嘴进行喷洒，提高沥青洒布精度。

Measures of variability include range, interquartile range, standard deviation, and standard error of the mean.

变异程度的测量包括范围、四分位差、标准偏差和平均数标准误差。

Compared the indicators of overeducation to those of international standard, Mode Model is the fittest indicator. Yet, Standard-Deviation Model is not a better one because of its normal distribution.

将教育与职业不对称此一指标用於国际比较，则以「众数模式」最为合适，「标准差模式」因统计分配的性质而较不合适。

Terminology: The positive square root of s2 is called standard deviation, and the positive square of is called standard error.

定义术语： s2 正的平方根称为标准偏差，正的平方根称为标准误差。

The algorithm can achieve adaptive optimization for the fuzzy parameter using the quotient between edge measure degree and noise standard deviation as the quality standard of enhanced image.

在基于边缘测度与噪声标准差的增强图像质量评估标准下，算法实现了模糊参数的自适应寻优。

A standard expected value model for multi-objective multi-stage transmission planning is presented to realize the transmission optimal planning with the control of line overloading risks. In this model, a constraint of overloading risks is built with expected value and standard deviation of random line active power and two objectives are given as expected value of the average power loss and discount value of the investment cost. By modeling uncertain informations with probability theory, the probabilistic DC power flow is adopted for the correlated calculations among random variables in the planning model.4 A novel multi-objective transmission planning approach that considers transmission investment profit is proposed. Requests for transmission investment profit and social welfare are involved in the proposed planning approach.

以方案总投资费用贴现值和平均网损期望值为目标函数，建立多目标多阶段输电网规划的期望值模型，以线路有功潮流过负荷随机变量的期望值和标准差构建过负荷风险约束，考虑了风险发生概率和严重程度两方面的特征，通过对不确定性信息的概率建模，利用概率直流潮流进行各随机变量的相关计算，实现了控制过负荷风险条件下的输电网优化规划。4提出考虑输电投资收益的多目标输电网规划方法，综合考虑市场参与者对输电投资收益和社会总福利的要求加热管及其对输电网规划的影响。

On the basis of standard codes,corresponding revisal codes are also adopted to express the deviation from standard codes.

在此基础上，进一步确定曲线的修正编码，以表示曲线与标准编码的差异程度。

Who? I never heard of him, Paul said, before asking teammate James Posey if he had heard of him.

赛后，科比说，他一直都是一名非常出色的射手，今天他打得很棒。

When I joined the company, I rotated around the different sections.

我加入这个公司时，轮换过几个不同的部门。