查询词典 H-hour

The modified expression of the broad emission-line profiles ire derived for the outflow kinematics model of the BLR driven by the radiation pressure. Taking into account the difference between the two lines HeI λ5876 and Hβ, it is shown the fact that the observed line width of HeIλ 5876 is broader than that of Hβ cannot be explained by the popular outflow BLR model evoked by W. G. Mathews. For comparison, line profiles of the gravitational infall model and orbital disk model are also calculated; the later is in good agreement with the observations Thereupon, conclusion is reached that the gravitational infall is an important process in the real BLR gas motion.

1推导了辐射压加速宽线云团径向外流，以及引力下落和转动等BLR运动学模型的谱线轮廓表达式，并考虑到光致电离计算表明的云团本身对Hβ和HeIλ5876谱线的辐射差异，用数值方法计算了它们的谱线轮廓，发现普遍流行的辐射加速气体外流模型不能解释HeIλ5876线宽大于Hβ线宽的观测事实，而引力下落模型则可以较好地解释观测，因此我们倾向于认为、径向内流运动很可能是BLR内的发射线云团真实运动的一个重要成分。

The LTR of centralized multivariable control systems is then generalized to decentralized control large-scale interconnected systems by H∞ optimal theory. The difficulty to compute the infimum of H∞-norms of recovery matrices in the set of all possible gains of decentralized observers is avoided.

基于H∞理论，将多变量系统的回路传递再生方法推广于分散控制关联大系统，并避免了在所有可能的分散观测器增益构成的集合上，直接计算再生矩阵的H∞范数下确界的困难。

Forty patients were divided at random into two groups with 20 patients in each group.Patients in group I were administered by themselves a mixture of propofol (20mg) and fentanyl (10μg) in increments using a Graseby PCA infuser (lockout period 1 min) to achieve sedation;patients in group Ⅱ received propofol 3.6mg .kg－1.h－1 and fentanyl 1.8μg－1.kg－1.h－1 continuously intravenously by the anesthesiologist to achieve intra-operative sedation.

40例下腹部手术病人随机分为两组(n=20)，PCS组病人应用Graseby PCA 注射泵(锁定时间1分钟)自我控制用药，PCS单次用药量为异丙酚20mg加芬太尼10μg；DCS组病人微量泵连续静注异丙酚3.6mg.kg－1.h－1和芬太尼1.8μg.kg－1.h－1。

When treated with propiconazole for 48 h and 72 h, the LD50 values of propiconazole against 4th instar larvae of S.

在注射处理后48 h和72 h，丙环唑对斜纹夜蛾4龄幼虫的LD50值分别为0.91μg/头和0.63μg/头。

SIP is part of an Internet Engineering Task Force proposal to replace parts of H.323.Just as H.323 is a collection of protocols, SIP is one of several protocols that will work together to complete calls.

SIP是因特网工程任务组建议的一部分，用于替代H.323的部分内容，正如H.323是一组协议的集合，SIP是在一起工作来完成通话的几个协议中的一个。

H and 6 h after hemorrhagic shock and resuscitation a 4-cm midline laparotomy was made and the mesentery near to the ileum was exteriorized and the microcirculation blood flow as well as PMN-endothelial cell interaction was evaluated by means of intravital microscopy.

复苏后2 h和6 h在腹部正中作4 cm切口，取出回盲部附近的肠系膜，显微镜下观察多形核白细胞在肠系膜毛细血管后小静脉内的附壁情况并录像。

The results indicated that the degradation process of nicotine with no-induced strain DN2 followed inverse S-shaped curve, and degradation process of nicotine with induced cells of DN2 followed Eckenfelder mode. The half life of nicotine degradation was 17.43 h and 4.10 h, respectively.

结果表明，未经烟碱诱导的降解曲线呈倒S曲线，半衰期为17.43 h；经烟碱诱导的降解曲线符合Eckenfelder动力学模型，半衰期为4.10 h。

The best extraction condition could be obtained: 100 g D. kaki leaves at pressure 18 MPa, temperature 50℃, CO2 flow rate 20 kg/h and time 2.5 h, extraction yield 3.1%.

最佳工艺条件为，100 g柿叶在萃取压力18 MPa、萃取温度50℃、CO2流量20 kg/h、萃取时间2.5 h，得率为3.1%。

The weak Hilbert 16th problem is asking for a least upper bound Z of the number of zeros of I for a fixed n and for all possible H, f, g and all h∈△.

弱化的Hilbert第十六问题就是对给定的n和一切可能的H，f，g以及h∈△寻求I零点个数的最小上界Z。

The heat generation curves of seven rubber materials used in tires with the changes of temperature have been obtained by using Dynamic Mechanics Analysis technique on NETZSCH DMA242 instrument, knowing that the heat generation of every other rubber materials except inner liner rubber changes lightly alone with the temperature within 10℃～80℃. According to the Fourier law, the heat transfer coefficients of tire rubber are measured by stable method on self-made experiment instrument. The coefficients changes lineally within 20℃～80℃ and the relation formulas λ=λ〓+bt are given out attached with λ〓 and b. The specific heat of tire rubber are measured on Differential Scanning Calorimeter NETZSCH DSC204 and the relations with temperature are linear and the formula is c=c〓+bT, where c〓 and b gained from experiment result data are presented in the paper. The heat convection coefficients on the surface of rolling tire are measured according to the principle of heat-mass transfer analogy principle after simplifying rolling tire into rotating disk with straight movement on wind channel. The relation with rotation speed of disk is linear as h=5. 399+0.0258n and the relation with straight line speed of tire is linear too, h=

论文采用动态力学分析技术，使用NETZSCH DMA 242型实验仪，获得了轮胎用七种胶料的生热率随温度变化曲线，确知除内衬层胶以外，其它各种胶料在一般胎温范围内（10℃～80℃）的生热率随温度变化不大；轮胎胶料的导热系数根据傅立叶定律的基本原理，采用稳态法在自行搭建的实验台上进行测试，结果表明，材料的导热系数在20℃～80℃的温度范围内随温度呈线性变化，论文给出了各种材料导热系数的线性变化的关系式λ=λ〓+bt及其λ〓和b的值；轮胎胶料的比热运用差式扫描量热原理，在NETZSCH DSC204型DSC实验仪上进行测试，结果表明，胶料的比热随温度的变化呈线性变化，其关系可用c=c〓+bT表示，文中给出了根据实验数据拟合的c〓、b的值；对轮胎表面的对流换热系数的测定，本文先将滚动的轮胎简化为有直线运动的旋转圆盘，而后采用萘升华热质比拟技术，在风洞中测量了滚动轮胎表面的对流换热系数，结果表明，圆盘表面对流换热系数与转速呈线性关系，即h=5.399+0.0258n，轮胎表面对流换热系数与其直线运动的速度呈线性关系，即h=

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。