采样效率
- 网络sampling efficiency
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结果:采样效率达100%,RSD小于1%。
Results : The sampling efficiency was 100 % . RSD was less than 1 % .
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采样效率为973%,样品在采样管中稳定时间为7天。
The sampling efficiency was973 % . The samples were stable for7 days .
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结果:方法采样效率大于94%,相对标准偏差RSD为2.6%~10.4%,本法与化学法相比测定结果无显著性差异。
Results : the efficiency of samples collecting was high ( > 94 % ), RSD was 2.6 % ~ 10.4 % . There was no significant difference between this method and chemical method .
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用碳分子筛TDX-01作吸附剂分析测定大气中超痕量的C6-C8苯系物空气总氚采样器的采样效率刻度
Use of carbon molecular sieve as adsorbent for sample collection in the determination of c_6 to c_8-benzenoid hydrocarbons in air calibration for collection efficiency of total airborne tritium sampler
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2-二乙氨基乙醇室温放置5d,下降率9.5%;采样效率>90%。
The activated charcoal tube adsorbed 2-Diethylaminoethanol may be stable for 5 days with a decay rate of 9.5 % , the efficiency of sampling by this method was more than 90 % .
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为了提高采样效率采用了重要性采样法。
In order to increase the efficiency , we adopted the Important Sampling .
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空气总氚采样器的采样效率刻度
Calibration for collection efficiency of total airborne tritium sampler
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应用气溶胶发生法评价空气微生物采样器采样效率
Evaluation of the sampling efficiency of bioaerosol samplers by the aerosol generating method
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气体中雾状物质的采样效率探讨
The discussion about sampling efficiency of mist in gas
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采样效率90%。
The sampling efficiency was 90 % .
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实例表明,该方法具有采样效率高、重构曲面精度高、曲面光顺等特点。
The experimental results show the high efficiency and high accuracy of the method , and better surface smoothness .
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平均采样效率为丙烯醛99.6%,丙烯酸98.4%,甲苯96.5%;
The average trapping efficiency was 99.6 % for acrolein , 98.4 % for acrylic acid , 96.5 % for toluene , respectively .
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目前,蛋白质折叠模拟中的难题之一,是传统的蒙特卡罗和分子动力学等方法采样效率过低,不能有效地模拟蛋白质分子的折叠。
Currently , the sampling efficiency in traditional methods , such as Monte Carlo and molecular dynamics , is the big obstacle to simulate protein folding .
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该方法能够大大提高构象空间的采样效率,避免长时间陷入局部最小态。
This method can make the peptides avoid trapping in the local minima for long time and enhance the sampling efficiency in conformational space during the simulation .
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标准曲线的相关系数0.99815,加标回收率99.47%~104.86%,相对标准偏差0.17%~0.20%,平均采样效率100%。
The correlation coefficient of calibration curves was 0.998.Recovery rates were 99.47-104.86 % . The relative standard deviations were 0.17-0.20 % and average sampling efficiency was about 100 % .
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结果表明,气样引入方式、空气温、湿度以及气体吸收液的动态稳定性均对采样效率有影响;
It shows that the sampling efficiency is effected by the way of leading gas into instrument , air temperature , air humidity and the dynamic stability of gas absorption solution .
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考虑到采样效率和成本等综合因素,在区域调查中,以采集弱胶结层(5~40cm)、细粒级样品(-160目)为最佳采样介质。
Elements tend to concentrate in residual debris and cemented silt and clay matter . Sampling of fine fraction of samples ( - 160 mesh ) from cemented soil horizon are cost-effective method for regional exploration .
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实验表明该新序列适用于弱耦合和强耦合体系;不仅可用于研究化学样品,还可用于研究生物组织样品,而且该序列的采样效率高。
The study indicates that the new pulse sequence is applicable to weakly-coupled and strongly-coupled spin systems . In addition to chemical samples , it is applicable to biological tissue samples . Moreover , the sequence is highly time-efficient .
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针对粒子滤波算法采样效率低、实时性差等问题,本文重点研究了粒子滤波算法的采样部分,分别采用辅助粒子滤波算法和均值偏移嵌入式辅助粒子滤波算法,逐步提高粒子的有效性。
To deal with low sampling efficiency and poor computation efficiency , the sampling part of the particle filter algorithm is the major concern . Auxiliary particle filter algorithm and mean-shift embedded auxiliary particle filter algorithm are introduced to gradually improve the particle efficiency .
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通过试验提出了实用有效的改进方法,使测试结果的准确性提高,氟的采样效率从原来的34.3%提高到67.4%。
An improved , practical and effective sampling procedure was offered on basis of some experiments . The improved procedure increased the accuracy of the measurement results greatly , and the sampling efficiency for fluoride was improved from 34 3 % to 67 4 % .
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结果固相吸附气体采样管采样效率、洗脱效率分别为(98.73±0.86)%和(98.60±1.20)%;
Results For the solid phase adsorption gas sampler , the collection efficiency was 98.7 % , and the desorption efficiency was 98.6 % .
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实验室模拟采样的捕集效率为957%~991%。
The trap efficiency of simulated sampling in laboratory was 95.7 % ~ 99.1 % .
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适应度计算方法影响遗传算法的采样空间和执行效率,研究适应度的求解方法有助于解决多目标优化问题。
Solution to fitness affects c and efficiency of Genetic Algorithm ( GA ) . Research on such problem conduces to develop multi-objective optimization problem .
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通过严格的性能测试分析,重采样、混音算法效率和系统性能都有较大提高,表明本文提出的解决方案是可行的,能有效地提高整个系统的处理能力和性能。
From the experiment result we can know that the efficiencies of resampling and mixing and the performance of the system are improved greatly which means the proposed solutions are feasible .
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通过对不同格网数据的特点采用不同的重采样方式,提高了重采样效率的同时,避免了在数据空白区域人为的生成虚假数据,并且为后续的滤波算法提供数据组织方式。
Different resampling methods for each grid are used according to the characteristics of grid data . So it improves resampling efficiency , avoids to manually creating false data in data blank area , and provides data structure method for back filtering algorithm . 3 .
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矿山空气污染监测中,采样布点设计、采样方法、采样效率和采样成本是空气污染监测研究的主要课题。
The sampling point distribution design and sampling method , efficiency and cost are the major subjects in the research of mine atomospheric pollution monitoring .
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使用不同容积、不同类型的吸收瓶(管)在不同的采样条件下进行DEP雾样品采集,将采样效率和采样过程发生的现象进行比较,选择出合适的采样方法和采样条件
The appropriate sampling methods and sampling conditions have been selected by contrasting the sampling efficiency with phenomenon happening in the sampling process
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本文对玻璃纤维滤膜-XAD-2吸附剂采样系统在平炉烟道中苯并(a)芘的采样效率进行了验证。结果表明,加入的BaP其回收率接近零。
The sampling efficiency for Benzo ( a ) pyrene in stack was tested for glass fiber filter-XAD-2 adsorbent sampling system , Results showed that the recovery of added BaP was nearly zero .
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对用注射器采样甲醛法测定高浓度SO2样气精密度、准确度、采样效率、样品的稳定性进行了研究.并应用于燃煤、燃油锅炉排气中SO2浓度的测定。
The high concentration SO2 sample was determined by the formaldehyde analysis , sampling with injector . Its precision , sampling , efficiency and stability of sample was studied .
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文章对环境空气中多环芳烃的采样与分析方法进行了概述,侧重介绍了样品的采集、净化、采样效率的评估方法和采样分析全过程的质量控制。
In this paper sampling and analysis methods of total polycyclic aromatic hydrocarbons in ambient air are introduced . Methods of sampling and cleanup are described as well as evaluation methods of sampling efficiency and quality control procedures from sampling to analysis .