峰值
- 与 峰值 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Although genotypes with 1 or 2 wx gene nullshould have a significant higher peak viscosity, no significant difference was foundbetween them and normal wheat. Some varieties with Wx-B1 protein deficiency had anormal peak viscosity for their volume weights were low.
研究还表明,峰值粘度与剑叶面积与倒2叶面积比值极显著负相关,剑叶面积与倒2叶面积比值过大的品种也难以有较高的峰值粘度。
-
The section thickness was 5mm,the best section was selected before injection of nonionic contrast material, hen nonionic contrast material l.5m1/kg were injected via the antecubital vein in the rate of 2ml/sec, two serial scannings were obtained began at 6s and 2mm, for the first series the scanning internal was 3 seconds, for the second series, the scanning internal was 7 seconds.3 Methods of studying figureThe CT numbers of lesion on plain CT and on contrasted CT at serial phases were recorded, on which the time-intensity was produced.
计算出不同时相时的CT增强值,绘出动态增强曲线。在不知道病变病理结果的情况下,由三位有经验的医师在不知道病理结果的情况下记录上述病例的动态增强模式及其动态变化。 4。增强峰值与肺血供来源和血管密度的关系的评价其中32例准备手术的SPN,术前行CT同层动态增强扫描后测量增强后第一次循环肺动脉期与主动脉期CT值。然后分别与平扫时CT值比较;术后对瘤体CT测量兴趣区取材并行HE染色,随机取5次,在放大40倍的显微镜下观察5mm范围内直径0.02~0.1mm和>0.1mm的微血管数目,5次的平均值颀士学泣衫艾中文赂要即为兴趣区对应的血管数目,井将其与瘤体增强峰值作相关性分析。
-
Evapotranspiration value and transpiration indexes of the three types of soil microbiotic crust under different water content(including Bryum argenteum crust,Didymodon nigrescens crust and algal crust) were measured.
通过对3种土壤生物结皮在对照和3个不同水分条件下进行蒸散量以及蒸腾指标的观测,结果表明:①3种土壤生物结皮蒸散量日变化过程呈现单峰型,各个处理间峰值出现时间和蒸散量变化幅度差异较大;真藓对照组峰值为0.473 g/10 cm2,出现时间为11:00时。
-
Due to existing signal processing technology's shortage such aslow measurement, narrow measurement range precision and other poor performance, we introduced a high-precise signal processing technology:firstly,to get power spectrum with Hanning windowed Welch modified periodogram, search its peak value frequency;secondly, to apply zooming analysis via Goertzel algorithm;at last,to get a highly precise doppler frequency with energy centrobaric rectifying algorithm.
针对存在的缺点,本文提出了一种应用于激光多普勒测速的高精度信号处理技术,即首先利用加Hanning窗的Welch修正周期图算法得到信号功率谱,搜索其谱峰值频率,接着利用Goertzel频谱细化算法对搜索的谱峰进行细化分析,再引入能量重心频谱校正算法对细化后的谱峰进行校正分析,从而将离散频谱分析算法、频谱细化算法和频谱校正算法三者有机结合起来,充分发挥各自的优点:通过加Hanning窗的Welch修正周期图算法快速得到功率谱及峰值频率,通过Goertzel算法获得分析频带的高分辨率频谱,然后通过能量重心校正算法对细化后的频谱进行高精度校正,这样不仅保证了算法的高效性,而且大大提高了分析的精度。
-
Photoluminescence spectra show that the emission peaks of compound 3 and 4 are at 612 nm and 630 nm, chrysoidine and red-emitting light, respectively.
光致发光光谱测试结果表明,化合物3的发光峰值为612 nm,橘红色光;化合物4的发光峰值为630 nm,发红色光。
-
The reliability of analysis result depends largely on the in-house experimental conditions. Unlike the previous analysis that only concerns the sole effect of permeable pressure, this article considers both permeable and confining pressure and deformation characteristics of concrete material under the interaction of them according to the real work state of construction, which may leads to the changing pattern of permeable rate as listed below: permeable rate always reaches its peak with the time process going on, than goes down and remains straight on some certain value; The PR will tend to decline while the confining pressure is increased, and the time taken before the peak will be extended as well; Under the constant permeable pressure and circularly changing confining pressure, the minus-exponential ascend and descend relationship could be applied between the PR and Time axes respectively with crannied and intact concrete samples, and the PR of crannied concrete is far more larger than that of intact concrete. The change pattern of concrete could also be mathematically analogized using the least square method.
室内的实验条件是研究成果可靠性的重要因素,而以往的研究都只考虑了渗透压单一作用,本文根据混凝土结构的实际工作状态,同时考虑了围压与渗透压共同作用下的混凝土材料的渗透性变化特征,得出了混凝土材料在围压作用与渗透压共同作用下的渗透率的变化规律:渗透率都是随时间推移先达到一个峰值,再降低并趋于平稳;渗透率会随围压的增大而减小,并且峰值的到达时间也会随之延长;在渗透压不变,围压升降循环的情况下,有裂缝、无裂缝混凝土的渗透率变化规律是随时间成负指数关系上升、下降,且有裂缝混凝土试件的渗透率远远高于无裂缝混凝土的渗透率,并对混凝土的变化规律运用最小二乘法进行数学拟合。
-
The experimental results indicated that under the steady operating conditions, the ignition timing of the base fuel (PRF90-90% iso-octane+10% n- heptane), which is equivalent to RON 90, delayed and the peak value of the heat release rate was low compared to the base fuel with single additive (Ditert-butyl peroxide-DTBP, Dicumyl peroxide-DCP, Tert-butyl hydroperoxide-TBHP, Tert-butyl cumyl peroxide -TBCP or Cumene hydroperoxide-CPO) which advanced ignition timing and increased the peak of the heat release rate obviously.
试验结果分析表明,在HCCI发动机燃烧稳定工况下,没有添加剂的基础燃料记作PRF90(为90%异辛烷与10%正庚烷的混合,相当于90号汽油)着火滞后,燃烧放热率峰值低,而混有单一添加剂(Ditert-butyl peroxide-DTBP、Dicumyl peroxide-DCP、Tert-butyl hydroperoxide-TBHP、Tert-butyl cumyl peroxide-TBCP或Cumene hydroperoxide-CPO)的基础燃料则着火明显提前,燃烧放热峰值升高。
-
And Cynodon dactylon reached to peak, which were 2.88 and 2.87 times of 4 h treatment respectively; but after 24 h treatment, activities of SOD of Cynodon dactylon had lower speed. The activities of POD have the same trend to activities of SOD.
POD活性的变化规律与SOD活性相同,黑麦草和狗牙根的POD活性同样在5℃处理20h时达到峰值,峰值后的POD活性减少率同样是狗牙根明显大于黑麦草。
-
Both groups have the same treatment course of 6 months. By cardiac ultrasonic contrast, both groups were examined before discharge and 6 months after the discharge the LVEDd, LVEF, the peak value of tachogram at prediastole, the peak value of tachogram at diastasis period and calculated the value of E/A.
应用心脏超声检查2组患者AMI后(14±2)d及1个疗程后左室舒张末径、左室射血分数、二尖瓣舒张早期血流速度峰值、二尖瓣舒张晚期血流速度峰值,并计算E/A。
-
NR activity was enhancing gradually in the whole growth stages then decreasing. The peak of NRA was advanced at jointing with the lower holard and it was at silking with the higher holard.
当土壤含水量较低时,NR活性出现峰值的时间提前至拔节期,而含水量较高时,NR活性峰值出现在吐丝期。
- 推荐网络例句
-
As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。
-
Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
-
But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。