查询词典 cutoff

We would recommend the 1.9 um cutoff InGaAs photodiode for operation at the 1.66 um absorption line.

我们推荐在1.66微米的吸收线上采用1.9微米切割铟镓砷。

Three diagnostic criteria for diagnosing AMI were designed, namely cTnⅠ+Myo, cTnⅠ+ H-FABP, and cTnⅠ+H-FABP+Myo. Diagnostic accuracy rating of the three criteria was then calculated and compared. Results Accord- ing to the ROC curves, the cut-off values of the three biochemical markers for diagnosing AMI were defined as follows: Cut-off cTnⅠ 0.5ng/ ml, Cut-off Myo 90ng/ml, and Cut-off H-FABP 5.7ng/ml.

绘制3种标志物诊断AMI的受试者工作特征曲线并确定其最佳cutoff 值，对设计出的3种诊断AMI的心肌标志物组合试验（cTnⅠ+H-FABP、cTnⅠ+Myo、cTnⅠ+Myo+H-FABP）的诊断准确度指标进行比较。

The diagnostic accuracy rating of the criteria was listed as in following order（cTnⅠ+ Myo, cTnⅠ+H-FABP, cTnⅠ+Myo+H-FABP in turn）: sensitivity: 0.957, 0.957, and 0.957; specificity: 0.724, 0.92, and 0.724; di- agnostic efficacy: 0.805, 0.932, and 0.805. Comparing with the criterion"cTnⅠ+H-FABP", the specificity（ Z =3.378, P .05） and diagnostic efficacy（ Z =3.064, P .05） of"cTnⅠ+Myo" were significantly lower; the specificity（ Z =3.378, P .05） and diagnostic efficacy（ Z =3.064, P .05） of"cTnⅠ+Myo+H-FABP" were also significantly lower.

结果 根据ROC曲线确定的cTnⅠ、Myo、H-FABP诊断AMI的cutoff值分别为0.5、90、5.7ng/ml，据此算出的各心肌标志物组合诊断AMI的灵敏度分别为（按cTnⅠ+Myo、cTnⅠ+H-FABP、cTnⅠ+Myo+H-FABP的顺序）0.957、0.957、0.957，特异度分别为0.724、 0.92、0.724，诊断符合率分别为0.805、0.932、0.805，其中cTnⅠ+H-FABP组合的特异度及诊断符合率均明显高于cTnⅠ+Myo和cTnⅠ+Myo+H-FABP组合（ P 。05）。

And it has given the effects of the all factors on the runoff by 1D river networks mathematical model. Due to the natural and artificial influences, the water-sediment transport has greatly changed. It is characterized by marked decrease in runoff and sediment diverted from these outfalls and increase in water-sediment transport of main stream. The key factors causing these changes are aggradation of the three outfalls channels and Jingjiang river cutoff work.

结果表明，受自然因素和人为因素的影响，荆江－洞庭湖江湖水沙输移有了较大调整变化，主要表现为三口分流分沙大幅度减小，干流水沙输移增加；江湖关系变化的主要因素是三口分流道的淤积萎缩和荆江裁弯。

A novel design method is put forward and the cutoff filters with depolarization at incidence angle of 45° are achieved.

由于这种设计的截止区和透射带带宽常嫌不足，故提出了展宽截止区和透射带的方法。

Fluorescein isothiocyanate labeled polyclonal goat antihuman immunoglobulin antibody was added, and flow cytometer was used to detect bead-platelet-associated autoantibodies-antihuman immunoglobulin antibody complex. Results The fluorescene ratio of four monoclonal antibodies was significantly different (P.01) between the idiopathic thrombocytopenic purpura patients and either the non-ITP patients or the normal controls. If the upper limit of normal control was set as cutoff value, ratios of greater than 1.37, 1.24, 1.48 and 1.19 were considered positive for the four monoclonal antibodies respectively. The flow cytometric bead assay had an overall sensitivity of 73.17% and a specificity of 94.29%. The overall sensitivity was significantly higher (P.05) than that of modified indirect MAIPA and that of using single antibody.

结果 特发性血小板减少性紫痕组4种羊抗荧光强度比值与非ITP血小板减少组和正常对照组有显著性差异(P.01)；若将ITP组患者4种羊抗荧光强度比值分别大于正常对照组上限1.37、1.24、1.48和1.19判断为阳性，则流式微球技术检测血小板特异性自身抗体的敏感性为73.2%，特异性为94.3%；4种羊抗联合检测总体敏感性明显高于改良间接单抗特异的血小板抗原固定试验(P.05)，且大于各单个抗体检测敏感性。

We got the simple and high accurate eigenvalue equations and cutoff frequency formulae of all propagation modes. Second, to the optical fiber with homogeneous cladding, we defined the "permittivity ratio", and we got the simple and high accurate connection of cutoff frequency to the ratio. Third, to the fiber with inhomogeneous cladding, we analyzed the dispersive and power-frequency characteristics.

第二，对于具有各向同性包层的弱渐变光纤，引入了介电比，找到了精度高且形式简洁的截止频率对折射率参数的依赖关系；第三，对于具有各向异性包层的弱渐变光纤，首次通过包层的轴向与横向的介电常数比分析了该类光纤的色散和功率特性。

Patients were consideredpositive when the expression were more than 20% cutoff for ZAP-70 and30% cutoff for CD38 .The CDS+ T cells in the same sample were used asinternal positive control, Isotype control was use for every sample .serumβ2-microglobulin was analyzed by ratenephelometry.

应用四色流式细胞术检测50例B-CLL患者外周血白血病细胞ZAP-70和CD38的表达，以ZAP-70≥20％、CD38≥30％为阳性，以CD5~+的自身T细胞为内在阳性对照，同时作同型对照。

And, the α parameters of frequency chirping of the cutoff intensity modulator are given at first. The cutoff conditions of metal-clad strip or rib waveguides are analyzed by modifying dual effective index method and simple effective index method, respectively.

在理论上，详细论述了截止型强度调制器的工作机理，结合耦合模理论，用近似方法对截止型强度调制器的调制特性进行理论模拟，模拟结果与实验结果的变化规律基本相符合；并首次给出截止型单波导强度调制器频率啁啾α因子的模拟结果。

An approximate analytical approach, which can be used to analyze the optical characteristics of metal-clad step or graded index waveguides in near cutoff, is presented at first. The mode propagation characteristics of metal-clad step index waveguides in near cutoff are comprehensively analyzed.

GaAs/GaAlAs异质结光波导材料是目前集成光学中的重要材料，本论文在系统介绍外延生长技术的基础上，利用普通的液相外延炉，成功地生长出可用于光波导器件制作的、表面较光滑并具有较大面积（14×16mm〓）的GaAs/GaAlAs异质结光波导材料，C-V法测得波导层载流子浓度为2—4×10〓cm〓，Al-Schottky接触的反向电压大于20伏，平板波导和脊波导通光实验良好。

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。