查询词典 exponential

Toxic effects of HgCl2 on Scenedesmus obliquus were studied in this paper. Algal growth, photosynthetic pigments content, super oxide dismutase activity, malondialdehyde content in the algal cells were measured in the exponential phase.

为探讨汞对藻类的毒性效应，以斜生栅藻为实验材料，检测了HgCl2对藻细胞数目、光合色素含量、超氧化物歧化酶活性、丙二醛含量等生化指标的影响。

The result shows that the purification efficiencies of ammonia-nitrogen and ortho-phosphate by immobilized algae in a stationary phase are higher than that in an exponential phase; the starvation treatment increases the removing rates of ammonia-nitrogen and ortho-phosphate, cells of Scenedesmus starved for 48 hours can obtain higher NF4(superscript +)-N and PO(superscript 3- subscript 4)-P removal efficiencies than starved for 48, 72, 24 and 0 hours respectively.

结果表明：静止初期藻细胞对NH4-N和PO(上标 3-下标 4)-P去除率比指数末期高，处理5d后，静止初期细胞对NH4-N和PO(上标 3-下标 4)-P的去除率分别为76.7%及91.7%，指数末期细胞氮、磷的去除率分别为75.4%和88.7%；饥饿处理可明显提高藻细胞对NH4-N和PO(上标 3-下标 4)-P的去除效率，藻细胞饥饿时间对NH4-N和PO(上标 3-下标 4)-P去除率的影响大小依次为48h，72h，24h，0h。

The microfracturing process of Jinping marble specimen in Sichuan province under uniaxial compression is recorded by using the testing scheme. Quantitatively investigated the propagation and coalescent of cracks at meso-scale with digital technology, the basic geometric information of rock microcracks such as area, angle, length, width, perimeter, are obtained from binary images after segmentation. The failure mechanism of specimen under uniaxial compression with the quantitative information is studied from macro/micro scopic perspective. The result shows that during the damage of the specimen the distribution of microcracks in the whole specimen are still subjected to exponential distribution with some microcracks concentrated in certain regions.

应用于四川锦屏大理岩预制裂纹试样中进行单轴压缩破坏全程的数字化试验，对微裂纹的萌生、生长及贯通过程进行数字化定量分析，得到试样在受荷过程中微裂纹的面积、方位角、长度、宽度和周长基本几何数据，从宏细观角度描述了岩石试样单轴压缩过程中的破坏机制，并分析得出试样单轴受压破坏过程中虽然微裂纹在某些区域集中，但在整个试样中微裂纹的统计分布依然是服从某一指数分布的这一结论。

The changes of partitioning ratio index for unit organ could be described by exponential equation and quadratic equation with different stem internode,leaf,petiole,and cotton bud and boll according to different internode positions on main stem and sympodial stem.

模型采用线性和指数方程描述了叶片、叶柄、主茎、分枝及蕾铃单位器官分配比例指数随GDD的动态变化过程；分别用指数方程及一元二次方程描述了叶片、叶柄、主茎、分枝及蕾铃单位分配比例指数随不同叶位、节位的动态变化过程。

By introducing a parameter b and using the extended tanh method , the rational hyperbolic functions method and the rational exponential functions method,We extend the solutions of a class of wave equation.

应用F-展开法及其扩展形式得到了Mizhnik-Novikov-Veselov方程，Klein-Gordon方程，Modified Benjamin-Bona-Mahony方程的孤立波解。

The changes in the weight, exponential, structure of the tissue, cell apoptosis in testis and epididymis and the changes in the sperm tectology in epididymis were measured on the day 8, 13, 21 and 35 of the treatment,respectively,by the method of morphological examination.

分别在热应激持续到8d、13d、21d和35d时，应用形态学观察法，研究受试鼠睾丸和附睾重量及指数、组织结构、细胞凋亡和附睾精子形态学的变化；应用免疫荧光细胞化学和蛋白质印迹分析的方法，研究睾丸和附睾组织中热休克蛋白70(HSP70)的表达；应用比色法检测睾丸和附睾组织内活性氧和丙二醛、抗氧化物酶(SOD、GSH-Px、CAT)的活力或浓度的变化；应用交配试验，检测雄鼠受精能力及其致孕雌鼠的产仔数的变化，用以揭示热应激对雄鼠生殖机能的影响。

Different from the routine trapeziform curve of frequency converting speed system, the motor's speed was adjusted according to exponential curve , and soft braking was realized by detent unit contained in the power module, enhancing the fluency and stability when running.

自动门的运行速度曲线与常用的梯形变频调速曲线不同，采用S形曲线对电机进行调速控制，以及采用自带缓冲制动单元的功率模块实现柔性制动，增强了自动门运行的稳定性和平滑性。

Four thin-layer drying models were investigated for the description of FIR-assisted freeze-drying characteristics. The models were exponential model, Page model, diffusion model, and approximation of the diffusion model. Tests were conducted using a three-level, three-factor (drying temperature, distance between sample and FIR heater, and sample thickness) design, and quadratic polynomial analyses were performed to relate the drying parameters of thin-layer drying model. The performance of these thin-layer drying models was evaluated by comparing the coefficient of correlation (R2), the sum of squares, and the RMSE amongst four models. Drying parameter K of the Page model gave the best results in describing freeze-drying with FIR of Tylose and sweet potato.

运用四种薄层乾燥模型（指数、Page、渗透模型及近似渗透模型）研究远红外线冷冻乾燥之乾燥特性，实验采用三阶层、三因子（远红外线加热器设定温度、远红外线加热器至样品表面之距离及样品之厚度）的实验设计，对於薄层乾燥模型的乾燥参数以二次多项式函数表示之，乾燥参数之二次多项式函数的最适性判断主要是藉由决定系数、模式缺乏适合性及均方根误差等值的比较而加以评估，以Tylose及甘薯样品而言，其中四种薄层乾燥模型的乾燥参数以Page模型之K值的结果为最佳。

Soil-rate exponential function, and the total C lost from the plant material was determined by difference between the soil amended with root material and unamended controls.

土壤利率指数函数和C共计损失从植物材料测定土壤之间的差异修正以root材料和未经控制。

It isshown by theories and simulations that uncertain effects such as frictions and external disturbancesor unmodelled dynamices can be eliminatated and global exponential stability or global uniform ultimate boundedness stability can be guaranteed.

理论和仿真均证明，系统的不确定性诸如摩擦力、外部扰动及未建模动力学带来的不确定性影响，均可被设计的控制律补偿，最后可保证全局指数收敛或全局一致最后有界的结果。

Article 144 The Government of the Hong Kong Special Administrative Region shall maintain the policy previously practised in Hong Kong in respect of subventions for non-governmental organizations in fields such as education, medicine and health, culture, art, recreation, sports, social welfare and social

第一百四十四条香港特别行政区政府保持原在香港实行的对教育、医疗卫生、文化、艺术、康乐、体育、社会福利、社会工作等方面的民间团体机构的资助政策。原在香港各资助机构任职的人员均可根据原有制度继续受聘。

Small wonder, then, that the Chinese spend more in the shop than any other group of foreign visitors do .

这样的小惊喜，使中国顾客比任何国家的人消费得更多。