峰值

The Shanghai composite index has fallen by 43 per cent since its peak last year.

上证综合指数目前较去年的峰值水平低43%。

During this period, the infection increased the first week before it peaked and started to steadily decline approaching elimination.

在这期间，感染数量在一周内上升达到峰值，然后开始稳步下降直到几乎消除感染。

Simulation results show the rotation and scale of the filterkeeps constant. It can pick up the inflexion and edge of the object and the structure of edge is judged by the correlation peaks of inflexions.

计算机模拟实验证明，圆谐梅林滤波器具有旋转和尺度不变性；能很好地提取畸变物体的角点和边缘，尤其是角点，并可以由角点处的相关输出峰值判断边的结构。

To improve the stability of Arcjet discharge plasma in low current and high voltage mode, research on the demand of output characteristics of Arcjet Power Conditioning Unit was conducted. In this paper, based on PWM invertors and current mode control, using MOSFET as the main power device, an Arcjet Power Conditioning Unit was developed. Through adding a closed loop feedback circuit of output voltage, it can make the output characteristics of PCU be positive resistance to ensure the stability of Arcjet discharge plasma. The experiment indicates that this PCU can make Arcjet engine work at high voltage mode (100 V, 10 A) and ensure the stability of arcjet discharge plasma. Finally, it provides the experimental data of Arcjet when working.

为了解决小电流、高电压下电弧火箭等离子体的稳定性问题，研究了电弧火箭发动机对电源调理单元的输出特性要求，基于逆变电源脉宽调制技术与峰值电流型控制原理，以MOSFET为主功率器件，研制了一台电弧火箭电源调理单元，给出了Arcjet工作时的实验数据，通过增加PCU输出电压的闭环反馈电路，可以使PCU的输出外特性呈现正阻性，保证电弧的稳定燃烧，实验结果表明，该电源调理单元能使电弧火箭发动机达到高电压工作模式(100V， 10A)，保持电弧工作的稳定性。

In addition, the figures of the isobars of the maximum pressure of the micro-pressure wave are given with a infinite baffle and without the baffle at the tunnel exit when the coming compression wave is a weak shock wave.

文中针对到达隧道出口附近的压缩波为弱冲击波的情况，给出了隧道出口处设无限大挡板和不设挡板时微压波压力峰值的空间分布图。

That adds to the cost of extracting oil, because more engineers and more complex machinery are needed to exploit it—but the end of easy oil is a far remove from the jeremiads of peak-oilers.

因为需要更多的工程师和复杂的设备来开采石油，炼油的成本增加了。但是，易采石油的末日还远不是鼓吹&峰值石油&的石油商们所忽悠的那样。

That adds to the cost of extracting oil,because more engineers and more complex machinery are needed to exploit it—butthe end of easy oil is a far remove from the jeremiads of peak-oilers.

要开采它们需要投入更多的工程家和更复杂的机械，这都增加了开采石油的成本——但即使容易开采的石油告完，也和石油峰值论者的悲惨故事相距甚远。

Compared with conventional method, the proposed auto-correlation difference algorithm had better robustness and anti-noise ability. It produces a keen-edged peak and reduces the plateau's uncertainty of the traditional method.

文中提出的自相关差分算法产生一个尖锐的最大峰，显著降低了传统算法中由于存在峰值平台带来的不确定性，与传统的算法相比，具有更好的鲁棒性和抗噪声性能。

High performance peak position detection circuit is key for a peak holder of nuclear pulse.

bstract 高性能峰位检测电路是峰值保持器的关键。

Two of If inhibitors, ZD7288 and Cs(subscript +), decreased the peak current of I(subscript hHcN2) and their IC50 were 23.9 ± 5.9 μmoL/L,l26.8 ± 27.1 mol/L, respectively. ZD7288 block was not released by washout. The release of Cs(subscript +) block was equally rapid upon switching back to bath solution without Cs .

起搏电流阻断剂ZD7288和Cs灌流，I(下标 hHCN2)峰值幅度均降低，半效抑制浓度分别为23.9±5.9μmol/L、126.8±27.1μmol/L，ZD7288的作用冲洗后抑制作用不能恢复，Cs的作用在冲洗后基本恢复。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。