查询词典 linearity range

Because optic circuit used differentiating interferometer based on phase compress theory ,the system can not be effected by outside slow variety such as temperature. Compared with common interferometers ,the linearity range of this system was enlarged by 220 times for phase compress.

由于光路系统采用了基于相位压缩原理的微分干涉式结构，因此该系统不受外界缓变量的影响；与一般干涉仪相比该系统也因相位压缩而使工作的线性范围扩大了220 倍。

Results: The linearity range for the determination was 10~1500 μg/L for sulfanilamide, 50~1500 μg/L for sulfathiazole, 10~1500 μg/L for sulfamethoxazole and 10~1500 μg/L for sulfamethazine.

结果：磺胺、磺胺噻唑、磺胺甲恶唑和磺胺甲嘧啶的线性范围分别是：10~1500μg/L、50~1500μg/L、10~1500μg/L、10~1500μg/L；检出限分别为：8.3、12、7.9、9.1μg/L；回收率为

The experimental conditions were optimized to produce following results: good linearity of sulfamethoxazole, norfloxacin, ciprofloxacin, ofloxacin and tetracycline in the range from 1.00 ng/L to 1 000 ng/L and the limits of quantification 1 ng/L, the good linearity of terramycin and aureomycin in the range from 10.0 ng/L to 2 000 ng/L and the LOQ 10 ng/L, the recoveries of deionized water and surface water from 72.1% to 112%, and the RSD from 0.6% to 9.2%.

摘要〗采用超高效液相色谱-电喷雾二级质谱联用技术同时测定水中7种抗生素，优化了试验条件。磺胺甲恶唑、诺氟沙星、环丙沙星、氧氟沙星、四环素在1.00 ng/L ～1 000 ng/L 范围内线性良好，定量下限为1 ng/L ，土霉素、金霉素在10.0 ng/L ～2 000 ng/L 范围内线性良好，定量下限为10 ng/L ，去离子水和地表水样加标回收率为72.1%～112%， RSD 为0.6%～9.2%。

After centrifugation, the extracts were separated on HILIC column by using acetonitrile-water as mobile phase. The analytes were identified and quantitated by LC-tandem MS under the positive/negative electrospray ionization and multiple reaction monitormode. The calibration curves showed good linearity in the range of 25-5000 μg/kg for melamine and cyanuric acid, and 50-10000 μg/kg for ammeline and ammelide. The limits of detection and limits of quantification were in the range of 5-20 μg/kg and 50-100 μg/kg, respectively.

牛奶样品直接用乙腈超声波提取；奶粉样品先用水溶解后再加乙腈超声波提取，高速离心后以乙腈－水为流动相，采用亲水作用色谱柱分离这4种化合物，在电喷雾正、负电离切换多反应监测模式下进行定性与定量分析，三聚氰酸一酰胺与三聚氰酸二酰胺含量在50~10000μg/kg之间、三聚氰胺与三聚氰酸在25~5000μg/kg之间，均获得良好的线性。

The established method was much better than other methods for measuring chloride because of cost saving ,accuracy,precision,wide linearity range,good specificity and stability and its resisting interference from haloid elements such as bromine and iodine and thiocynate etc.

该方法测定成本低，准确、精密、线性范围宽，稳定性好，在抗卤族元素溴、碘及硫氰酸等阴离子的干扰方面，显著优于其他方法

Methods:According to national drug criterion of xylitol i njection,we adopted sodiumthiosulfate titrating method to determine the content of the xylitol,and carried on the methodology,including linearity range、prec ision、stability、average recovery and so on.

参照国家药品标准，采用硫代硫酸钠滴定法进行木糖醇注射液中木糖醇的含量测定，并进行方法学考察，包括线性范围、精密度、稳定性、加样回收率等。

Results The linearity range was 5~500μg/mi. The linear regression formula was Y=5.9601 X -1.643, r=0.9998. The limit of detection was 0.5μg/ml. The minimum detectable concentration was 0.04mg/m^3 (60 L sampling volume). The sampling efficiency was 100%. The sample could store at least 5 days in absorption pipette.

结果 所建方法的线性范围5~500μg/ml，回归方程Y=5.9601 X-1.643，r=0.9998；方法检出限0.5μg/ml，最低检测浓度为0.04mg/立方公尺（采样体积60L计）；采样效率达100%；样品在吸收管中可稳定5d。

Results: Good linearity was observed in 6～1512μmol.L-1 range for phenylalanine, the intra-run and inter-run imprecisions w ere 3.68%and 4.01%, the recovery rate was 98.6%; good linearity was observed in 5.4 ～1380.0μmol.L-1 range for tyrosine, the intra-run and inter-run i mp recisions were 1.87%and 2.59%, the average recovery rate was 98.9%.

酪氨酸的线性范围为5.4～1380μmol.L-1，最低检测浓度为0.7。μmol* L-1，平均回收率98.9%，批内CV为1.87%，批间CV为2.59%。健康儿童血清苯丙氨酸浓度为(61.4±10.8)μmol.L-1，血清酪氨酸浓度为(131.8±28.0)μmol.L -1。健康成人血清苯丙氨酸浓度为(69.3±8.6)μmol.L-1，血清酪氨酸浓度为(83.6±9.4)μmol.L-1.4例苯丙酮尿症患儿的血清苯丙氨酸浓度为1296～1759μmol.L-1，血清酪氨酸为29.5～53.5μmol.L-1。

To solve the exsisting problems in the realization of the LFM/CW radar, the thesis presents a technique for dynamically measuring the LFM/CW signals, which can accomplish the dynamic measurements of FM linearity, FM bandwidth and FM slop of the transmitted signals of LFM/CW radars. This technique creates an effective and accurate means of judging the performance of LFMCW radars. The linearity-correction techniques presented in the thesis successfully make the linearity of the transmitted signals of an actual LFM/CW radar reduce from approximately 25% to 0. 1%(or r. m. s linearity of 0.04%), better than the best results (0.22%) obtained by foreign researchers with complex linearization closed-loop in the same kind of LFM/CW radars, according to the published literatures during the last decade. In order to improve the capability of the real-time processing and range-cells management of LFM/CW radars, the principle of equivalent mixing by lacking-sampling process of band-pass real signals is proposed based on the well-proved improvedversion of sampling theorem of band-pass real signals. This principle is used to configure the range-segments processing of the beat signals of an actual LFM/CW radar. The techniques of system-background interference suppression and the beat signal's dynamic range suppression are proposed, and are realized in an actual LFM/CW radar to demonstrate their effectiveness.

针对线性调频连续波雷达实现中急待解决的技术问题，文中提出并验证了线性调频连续波信号的综合动态测试技术，可以完成对线性调频连续波雷达发射信号的扫频线性度、扫频带宽和扫频斜率的综合动态测试，为衡量实际线性调频连续波雷达的系统性能创立了精确有效的测试手段；文中建立的非实时闭环动态校正技术使一部实际的线性调频连续波雷达的发射信号（时带积3×10〓）的扫频线性度从25%改善为0.1%（方均根线性度0.04%），优于国外已公布的80年代同类雷达中采用复杂的实时闭环动态校正环路所获得的实际结果（0.22%）；为了改善线性调频连续波雷达的实时性和分辨单元数处理能力，文中发展完善了实带通信号的采样定理并给予了严格证明，并在此基础上提出了欠采样等效混频原理，将其应用于实际线性调频连续波雷达的距离分段处理中；针对线性调频连续波雷达中系统背景干扰和回波动态范围问题，创立了系统背景综合抑制技术和频域动态范围压缩技术，并将它应用于实孔线性调频连续波雷达系统中，显示出它们的有效性。

Compared with common interferometers ,the linearity range of this system was enlarged by 220 times for phase compress.

由于光路系统采用了基于相位压缩原理的微分干涉式结构，因此该系统不受外界缓变量的影响；与一般干涉仪相比该系统也因相位压缩而使工作的线性范围扩大了220 倍。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。