查询词典 peak factor

An explicit definition of local peak is shown, and the existence condition of local peak is given. It is proved that the GA is constringent at the neighbor of its local peak. The theoretical evidences of some improvements on GA are given, which points out the way forward for improving GAs performance.

关于遗传算法的收敛性研究的一些典型结果包括：文献 [2 ]分析了在种群规模无穷的情况下典型遗传算法的收敛性；文献 [3]证明了典型遗传算法不收敛，而如果对算法采取记录每一代中最佳个体的策略，则改进的算法收敛；文献 [4]提出了一种等价的遗传算法，并给出了收敛条件与收敛速度；文献 [5 ]研

Those three classes of ecosystem are:(1) peak cluster-narrow valley system;(2) karst hill, stone forest, peak clusler-wide valley, shallow depression system;(3) peak cluster-deep depression, dolina system.

因此，西南喀斯特山区生态系统的划分应将人类活动干扰程度和喀斯特地貌所造成的差异结合起来进行。

The pattern of lunar cycle can be classified into three strategies:(1) Planulation of S. hystrix and P. damicornis showed clear lunar periodicity and the peak of larval release shifted with different months. The peak of planulation occurred around the full moon in winter then shifted gradually to the first quarter moon phase in summer. The phase shift of larval release may be related to the seasonal variation of seawater temperature and the sudden temperature drops caused by upwelling.(2) Planulation of S. pistillata showed clear lunar periodicity and the peak of larval release occurred around the full moon.

在月周期方面可分成三种生殖策略：(1)尖枝列孔珊瑚与细枝鹿角珊瑚释放幼生不但有明显的月周期，而且释放幼生的高峰会随著月份而移动，由冬季至夏季期间，高峰从满月前后转变至上弦月前后；再由夏季至冬季期间，高峰从上弦月前后转变至满月前后，而此变动形成一个完整的年周期，原因可能与海水温度影响配子发育和胚胎速度与夏季期间涌升流所造成的降温有关。

ABSTRACT The ionic strength of mobile phase can significantly affect the peak shape of ionogenic compounds such as antibiotics in reversedphase high performance liquid chromatography. The influence may be attributed to overloading of ionogenic analytes in lower ionic strength mobile phase. In such phase, peak becomes increasingly rightangled triangle in shape with increasing sample load together with increasing peak width and tailing.

在反相高效液相色谱过程中，流动相的离子强度可显著影响可解离的化合物如抗生素的色谱峰形，原因在于流动相的离子强度较低时，色谱填料的固定相易于过载，使离子化的化合物的色谱峰形呈典型的过载特征――峰形接近直角三角形。

ABSTRACT ionic strength of mobile phase can significantly affect the peak shape of ionogenic compounds such as antibiotics in reversedphase high performance liquid chromatography. The influence may be attributed to overloading of ionogenic analytes in lower ionic strength mobile phase. In such phase, peak becomes increasingly rightangled triangle in shape with increasing sample load together with increasing peak width and tailing.

在反相高效液相色谱过程中，流动相的离子强度可显著可解离的化合物如抗生素的色谱峰形，原因在于流动相的离子强度较低时，色谱填料的固定相易于过载，使离子化的化合物的色谱峰形呈典型的过载特征――峰形接近直角三角形。

The results showed that the photosynthesis of Melinis minutiflora varied in a double-peak pattern with a remarkable noon inhibition and being controlled by stoma. The first peak appeared around 10:00 am while the Pn reached 18.8 molCO2/(m^2s) and the second peak appeared around 14:00 pm while the Pn reached 14.4 molCO2/(m^2s), and changed positively with the variation of transpiration rate and stomatal conductance.

结果表明，糖蜜草的光合日变化呈双峰型，有明显的&午休&现象且受气孔调节。10：00出现第1个峰值，Pn为18.8μmol/，14：00左右出现第2个峰值，Pn为14.4μmol/，变化趋势与蒸腾速率、气孔导度等因子相同。

In measurements of a day,generallyspeaking,the photosynthesis of birch in mesophytic habitat is better than that in xerophytichabitat(peak values are 12.8,10.33μmolCO2m-2s-1 respectively);that of sexual birch inmesophytic habitat is better than that of clone birch(peak values are 9.87,6.71μmolCO2m-2s-1respectively);that of young tree is better than that of seedling(peak values are12.37,10.05μmolCO2m-2s-1 respectively).

在一天中的各个时刻，总体说来，中生生境生长的白桦光合作用超过旱生生境生长的白桦光合作用(净光合速率峰值分别为12.8、10.33μmolCO2m-2s-1)；白桦幼树的光合作用超过白桦幼苗(净光合速率峰值分别为12.37、10.05μmolCO2m-2s-1)；中生生境有性白桦的光合作用超过无性白桦的光合作用(净光合速率峰值分别为9.87μmolCO2m-2s-1、6.71μmolCO2m-2s-1)。

Compared to the task of form only, the task of form and spatial location shows significantly smaller N2 peak amplitude and earlier P3 peak latency in the occipitotemporal areas, and significantly smaller P2 peak amplitude in the anterior frontal areas.

实验结果为：(1)行为数据王示，两种任务的正确率没有显著差别，但形状和空间位置知觉任务的反应时显著低于单纯形状知觉任务；(2)ERP数据王示，两种任务表现出非常相近的ERP波形特征：在大脑后部区域微弱的P1成分，非常显著的N1成分，显著的P2，N2，P3成分；在大脑前部额区显著的P2成分。

The changing trend of progesterone during oestrous cycle resembles with that during the first 14d of early pregnancy. Its content reaches the peak value at lOd after oestrus and then declines. The estradiol peak appears at 3d of oestrous cycle, and the level rises again before oestrus. The concentration of LH declines after oestrus. The level of follicle stimulating hormone reaches the peak value at lOd after oestrus (2.40mIU/ml).

发情周期：民猪发情周期孕酮的含量与妊娠早期14天内的变化极其相似，在发情后第10天达峰值，而后开始下降；雌二醇水平在发情后第3天出现高峰，下次发情前开始升高；促黄体素在发情当天达最高水平，然后开始下降；促卵泡素在发情后的第10天达到峰值(2.40mIU/ml)。

The elimination half-life t(subscript β1/2 was 161.10h, 333.21 h and 611.26h, respectively, and the total body clearance was 27.4mL/, 16.8g/ and 18.0g/, respectively. The metabolite ciprofloxacin concentration-time profiles of the plasma, muscle and liver presented similar trend. The multi- peak phenomenon were observed in the plasma, muscle and liver, but the first peak time was 24h, 24h and 12h, respectively. The peak residue of metabolite ciprofloxacin was in liver, muscle and plasma, ordinally. The eliminating rate of ciprofloxacin from muscle and liver was very low.

代谢物环丙沙星在鳗鲡血浆、肌肉和肝脏中药物水平的变化趋势与恩诺沙星基本相似，呈现出多峰现象，但3种组织中环丙沙星出现第一个药峰时间分别为给药后第24小时、24小时和12小时，3种组织中环丙沙星峰值水平肝脏中最高、肌肉中次之、血浆中最低，环丙沙星在肌肉和肝脏中的消除速率比较缓慢。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。