查询词典 growth curve

General admissibility of linear predictor of future observations in growth curve model under quadratic loss function is investigated.

在二次损失情况下，研究一般增长曲线模型中未来观察值线性预测的泛容许性。

The first part consists of Chapter Two, which concerns the research on linear minimax estimator of regression coefficients for a growth curve model.

论文首先在第一章综述了Minimax估计理论的研究情况，余下的内容分为三部分：第一部分由第二章组成，是关于增长曲线模型回归系数的线性Minimax估计问题的研究。

Second,a new estimator called generalized rootpower estimator of regression coefficients in growth curve model is obtained.For the newestimator,its superiority over the LS estimator and the root power estimator,and its admissibilityare proved.Two methods,two kinds of arithmetic of choosing the generalized root powerparameters are introduced.A demonstrative practical example is provided.

对增长曲线模型中的回归系数矩阵提出了一种新的估计——广义根方估计，并证明了通过广义根方偏参数的适当选取可使得该估计在均方误差和均方误差矩阵的意义下优于已有的最小二乘估计估计和根方估计；及证明了广义根方估计是可容许估计；还给出了选取广义根方偏参数的两种方法、算法和应用实例。

These were low-differentiated cells. Growth curve of cultured MSCs was "S" shape. The first, third and fifth passage cells had strong reproductive capability.

透射电镜观察显示间充质干细胞核大，以圆形或类圆形为主，胞核比例大，细胞器少，为低分化细胞。

Ex-pat owners of businesses in China who have been slugging away for 5+ years can suddenly find themselves on a steep growth curve.

前八的业主在中国的业务已被打距离为5 +年，可突然发现自己在一个陡峭的增长曲线。

Three kinds of BCRC No.51534, 10322 and 10675 would be selected and acted as an experimental sample of Escherichia coli. Results shows that Escherichia coli of No.51534 will appear better performance because the maximum of open circuit voltage, closed current and power density are 1.01V, 22mA and 1342mW/m2, respectively. Concerning the effect of culture time with respect to different phase type on the electricity performance of MFCs, the time points on the intersection between lag phase and logarithmic phase, the middle of point of stationary phase for growth curve of Escherichia coli would appear a good performance of MFCs. In addition, the BCRC No. 51534 Escherichia coli possessing a better performance of MFCs than others would be suggested and applied to further studying. Comparison with the performance of MFCs with respect to electron mediator under different mole number, result shows that electron mediator of methylene blue with 4.63mM would appear a better electricity performance of MFCs than others. Concerning the different material of proton exchange membrane with PTFE-Nafion, Nafion 211, 212 and 117 with respect to the performance of MFCs, result shows that the Nafion 117 applied in MFCs will have a better performance of MFCs than other cases. Finally, the effect of molar concentration on the performance of MFCs would be expected at the studied cases of 0.4M, 0.2M, 0.1M and 0.05M respectively for cathode oxidant, result shows that a good performance of MFCs will happen at the condition of 0.2M. Those observations will be useful to improvement of MFCs in the further study.

於上述电池系统条件下，进行大肠杆菌生长曲线、电子传递介质、质子交换膜、电极与阴极氧化剂对电池电性效能分析；选择编号10322、10675与51534之大肠杆菌为实验菌株，依定量培养之生长曲线取出代表不同时生长特性时期的培养时间，利用亚甲基蓝作为电子传递介质进行实验分析从所测得的电量进行分析，以编号51534之大肠杆菌的微生物燃料电池有最大的开路电压为1.01V及最大闭路电流为22mA；当极化曲线中电压为0.47V、电流为11.4 mA时有最大的功率密度为1342 mW/m2；加以负载有平均工作功率密度294 mW/m2；从生长曲线与电性效能来分析，得知生长曲线的迟滞期与对数期的转变点与静止期的中间点有最佳电性效能表现；对於加入不同莫耳数之电子传递介质methylene blue、neutral red与thionine之电池效能表现，则以加入4.63mM methylene blue电子传递介质的电池有较佳平均功率密度230 mW/m2；另对於质子交换膜PTFE-Nafion、Nafion 211、Nafion 212与Nafion 117之电池效能表现，以Nafion 117质子交换膜的电池有较佳平均功率密度340 mW/m2；对於分析加入不同莫耳数浓度0.4M、0.2M、0.1M与0.05M的阴极氧化剂之电池效能，则以0.2M的阴极氧化剂的电池可得到较佳平均功率密度429 mW/m2。

The inhibition of the cells during 60 hours was determined by melhylthiazolyl tetrazolium assay, and the cell growth curve was made.

目的：研究米非司酮和孕三烯酮对体外培养的异位的和正常的子宫内膜间质细胞生长增殖的影响。

This paper studies the growth curve and content variation of suger, titratable acid and Vitamine C, which in the two main wampee cultivars Clausena lansium (Lour. Skeels cv.

研究了黄皮两个主要栽培品种鸡心黄皮和郁南无核黄皮果实生长动态及其发育过程中糖、酸和维生素C含量的变化规律。

The well-grown cells of the third passage were co-cultured in vitro on the nano-CS/COL scaffold. Taking simple nano-CS/COL scaffold material as control, the histocompatibility of scaffold material and cells were comprehensively evaluated by cell adherence rate, growth curve, cell activity and cycle, and scanning electron microscope observation.

取生长良好的P3代，与纳米壳聚糖-胶原纤维支架体外联合诱导培养，以单纯纳米壳聚糖支架材料为对照，通过细胞贴壁率、生长曲线、细胞活力及周期、扫描电镜观察综合评价材料与细胞的相容性。

Methods:SD rat dermal cells were cultivated in vitro adherently on regenerated silk fibroinfilms and observed the effects of regenerated silk fibroin films on growth curve and chromosome of cells by viable cell counts and normal detection of chromosome.

采用静置贴壁培养法在再生丝素膜上培养大鼠真皮细胞，并用活细胞计数法和常规染色体检测技术，观察再生丝素膜对细胞生长和染色体的影响。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。