查询词典 at the threshold of

MethodsThe pharmacological effects of the Ziziphus jujube leaf extract on the autonomic activities of mice, the time of sleep induced by pentobarbital sodium, the sleeping synergistic action of mice with barbital sodium at sub-threshold and hypnotic dosages and the central inhibitory effects in mice induced by amphetamine were investigated.

方法考察酸枣叶提取物对小鼠自主活动的影响、对延长戊巴比妥钠诱导的小鼠睡眠时间、对阈下巴比妥钠的睡眠协同作用以及对苯丙胺中枢兴奋作用的影响。

At first I couldn't find the source of the high, groaning words that echoed clamorously through the bare garage--then I saw Wilson standing on the raised threshold of his office, swaying back and forth and holding to the doorposts with both hands.

起初我找不到那些在空空的车行里回荡的高昂的呻吟声的来源——然后我才看见威尔逊站在他办公室高高的门槛上，身体前后摆动着，双手抓着门框。

Aiming at the circumstances that skull and the gore are conterminous in the CT image of encephalic hemorrhage,a segmentation algorithm on the gore recognition is designed with the integration of edge detection,region growing and threshold segmentation.

针对颅内出血CT图像颅骨与出血块相接的情况，设计了一个集边缘检测、区域生长、阈值分割于一体的出血块识别算法，并通过计算机模拟实验实现了出血部位的识别与自动分割，为出血量的定量计算奠定基础。

More than 50 GaAs/GaAlAs High Power Single Quantum Well Semiconductor Lasers are aged. The threshold current decreases during the early aging (first 520 h) and the largest decrease is 57 mA. From the aging result of more than 1000 h at constant current, we find that output power increases during the early aging , and then decay slowly according to exponent law.

通过对50余只808nm的GaAs/GaAlAs高功率单量子阱远结半导体激光器的老化实验观测，在老化初期（前520h），阈值电流随老化时间的延长而下降，下降幅度高达57mA，从1000h多的恒流电老化结果可以看出，器件的输出光功率在老化初期有所上升，随后，表现出按指数规律缓慢下降的行为。

The information Radon coefficient wrap-around of the line on a finite field was caused by the modular arithmetic so that the Radon coefficient information in the periodic oscillations direction was processed with discrete cosine transformation, and other direction information was processed with wavelet analysis in order to reduce the wrap-around of rebuilding information. At the same time, according to the characteristic of the noise, one kind of denoising threshold selection plan was proposed.

正交有限脊波分析处理信息时，有限域平面上的直线由于模运算的存在而引起信息Radon系数的卷绕，为此，对Radon系数周期振荡方向的信息采用离散余弦变换处理，其他方向信息采用小波分析处理，以减少卷绕对信息重建影响；同时，结合图像信息中噪声的特点，提出了一种去噪浮动阈值的选取方案。

When the threshold for the logistic model was set at the first quartile, this resulted in a sensitivity of 86% for detecting all stroke and a sensitivity of 94% for detecting hemorrhagic stroke.

当Logistic模型的界值设定为第一个四分位数时，结果显示检测出所有卒中的敏感度为86%，而对出血性卒中则为94%。

With activating function at stimulating threshold and requirement of the minimum driving energy in the coil, the optimal coil geometries are searched by adjusting the flat coil structure parameters and computing the corresponding coil output---the peak magnetic energy of coil.

在磁刺激激活函数达到阈值和最小线圈驱动能量条件下，调整平面螺旋线圈的结构，计算出依赖于线圈结构参数并反映线圈输出性能的峰值磁能，从而，寻找最优的线圈几何参数。

Thehigh-density array has threshold energy of about 2TeV. With the YangbajingAS γ array, upper limits of γ-ray fluxes from many high energy galacticcelestial objects including Crab Nebula and active galactic nuclei weremeasured at the energy around 10TeV, and the possible evidence of existing10TeV cosmic gamma ray burst was looked for. The Sun's shadow of cosmicrays has been observed and shift of the Sun's shadow resulted from the solarinterplanetary large scale magnetic field was found. And the ultra high energyspectrum of primary cosmic ray around the 'knee' was reached.

利用羊八井AS γ阵列已测量了包括蟹状星云在内的多个河内高能天体和活动星系核的10TeV γ流强上限，显示出可能存在的10TeV宇宙γ暴的线索，作出了宇宙线太阳阴影图，并得到了由于太阳及行星际空间大尺度磁场造成的宇宙线太阳阴影相对于太阳几何位置的偏移，测出了超高能宇宙线"膝"区能谱。

The examples show: It is not only scientific and rational approximately, but also as referenced calculational methods of threshold quanlity of increased or emendatory chemical substance in the "Identifecation of major hazard installations "(GB18218-2000) in the future, that appliance respective of TNT equivalent method, gasoline equivalent method, methane equivalent method, methl ethyl ketone peroxide equivalent method and hydrogen sulfide equivalent method for the rhrehold quanlity in the work site and store area of volatile substance, combustible liquid substance, combustible gaseous substance, active chemical substance and poisonous substance. At the same time, Comparing with the death radius method and evaluative method of combustible, volatile, poisonous mojor hazardinstalltions, hazard grading method of hazard degree grading in the chemical factory for the major hazard installations is simplerof operation and more practical of calcutating result, and have some significance on generalizer.

实例验证表明：TNT当量法、汽油当量法、甲烷当量法和过氧化甲乙酮当量法分别对爆炸性物质、易燃液体物质、易燃气体物质和活性化学物质的临界量确定，具有一定的科学性和合理性，可作为《重大危险源辨识》(GB18218-2000)中临界量数值修订和危险物质扩充时进行临界量确定的参考计算方法，同时，化工厂危险程度的重大危险源分级法与易燃、易爆和有毒重大危险源评价法和死亡半径法相比，评估过程简单易行，分级结果符合实际，具有较强的可操作性和一定的推广意义。

According to the difference of Doppler spectra of meteor trail echo and clutter of ground and sea, a FIR high-pass filter is designed to filter out clutter and so the meteor trail echo becomes obvious. Then a smart threshold is obtained from the minimum mean of different segments of background noise and used to detect the meteor trail echo. Finally the phase discontinuity of clutter from the meteor trail echo suppression is eliminated by substituting the data at echo positions with clatter.

该文根据地海杂波与流星干扰在多普勒谱上的差别，提出了用FIR型高通滤波器滤除杂波使流星干扰凸显出来；再根据流星干扰的分布特点分段计算背景噪声均值，求取流星干扰检测门限；最后用杂波信号来插值流星干扰位置上的数据，消除因去除干扰造成的杂波相位不连续。

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