脉冲

While the transmission of laserpulse in plasma forms pulse compression, soliton and paired solions, and densitycavitation of electron and ion and so on.

而激光脉冲在等离子体中的传播过程中同样出现了脉冲压缩、产生孤子以及孤子对、形成电子和离子的密度空泡等现象。

On this paper, the pulse electrochemical compound finishing technology parameters which influence the finishing surface roughness was paid attention to, such parameters include the pulse frequency, the duty factor, the peak voltage, the finishing time and so on. Then basic craft rule of two kinds of mold material in finishing process were obtained, and each kind of parameter in this craft was optimized by means of the orthogonal experiments.

在此基础上，重点考察了脉冲电化学复合光整加工过程中各工艺参数对光整后表面粗糙度的影响，如：脉冲频率、占空比、峰值电压、光整时间等，由此获得了这两种模具材料在整个过程中的基本工艺规律，并通过正交试验对光整加工中的各参数进行优化。

In this study, in utero transfection plasmid DNA method was set up to embryonic mouse. The GFP expression vector pCAGGS-IRES-EGFP was microinjected into the lateral cerebral ventricle of E 14.5d mouse embryos through the uterine wall. Then, the 30 V square-wave pulse was delivered across the head for 5 times and interval 50m sec by electrodes in parallel with the median raphes.

本研究旨在通过子宫内电穿孔法，建立鼠胚大脑皮层体内基因转移体系：将带有绿色荧光蛋白的表达载体pCAGGS-IRES-EGFP显微注入胚胎期14.5 d的鼠胚侧脑室中，电极沿与脑中缝平行的方向夹持鼠脑，在电压30 V，脉冲时间50 ms，脉冲数5的条件下方波电击，将外源基因转移到室管膜层细胞。

In this article, the OH radials produced by positive and bi-directional pulse corona discharge in a wire-plate reactor are studied by emission spectra technology I .

本文利用发射光谱技术研究了在正脉冲、双向窄脉冲两种放电情况下各种物理参数对线-板式电晕放电产生的OH自由基的影响。

In this thesis, we concentrate on the development in theoretical prediction and experimental synthesis of CN compounds in the recent 10 years. By means of ion beam sputtering, treating melamine at high temperature and pressure, pyrolyzing melamine and treating pyrolysis products of melamine by impulsive discharge and high-speed impact, we explore the routes to synthesize carbon nitrides. The chemical compositions, crystal structures and bonding states of the CN films and powders obtained from the experiment are studied by the use of EDX, XRD, TEM, XPS and FTIR.

本文概述了十年来碳氮化合物在理论预测和实验研究方面的进展；采用离子束溅射、三聚氰胺高温高压和三聚氰胺热解以及产物的脉冲放电和高速冲击加脉冲放电处理等三种方法，探索了碳氮化合物的合成途径；借助X射线能谱、X射线衍射、透射电镜、X射线光电子谱和红外光谱等手段，对所获得的碳氮薄膜和碳氮粉末进行了成分、晶体结构、价键结构等性质的分析。

Objective: To explore and evaluate the efficacy and safety of intense pulsed light and pulsed dye lasers in the treatment of purple and thick port-wine stains.

目的：探讨强脉冲光联合脉冲染料激光治疗紫红型和增厚型鲜红斑痣的治疗效果。

So it is capable to satisfy the requirements both UV intensity and conversion efficiency by using lower voltage or input power and high frequency in the case of matching between discharge tube and power supply.

不对称电压波形的负高压脉冲要比正高压脉冲向放电管中馈入更多的能量并产生更强的紫外辐射，但密集的丝状放电间相互作用使发光的能量转换效率低于交流电压源。

Four kinds of pattens of pressure fluctuation can be obtained with different operating conditions. The bubbling phenomena in pulsed fluidized beds were also observed...

并对脉冲流化床中的气泡现象进行了初步的观察和研究，发现在脉冲流化床中气泡的形成和发展受到了有效抑制，床层中的气固接触效率可大为提高。

Further theoretical analysis demonstrated the lateral effective width of crescent-shaped quantum wires was 6nm within the regime of quantum size. With two-dimensional separated-confinement-heterostructures, the multi-quantum-wire laser arrays operated in pulsed condition (1kHz/1μs) at room temperature, and their pulse light outpower reached more than 115mW, which is the best among all quantum wire lasers reported previously.

这种多量子线激光器列阵具有二维分别限制的异质结构，并在室温脉冲（重复频率1kHz，脉宽1μs）下产生激射，光脉冲线性输出功率可达115mW以上，这是目前国际上各类量子线激光器的最好水平；子带间能隙最大为27meV，与室温下热离化能相当，优于目前国际上报道的同类量子线激光器的最好水平。

The temporal and spectral behavior of the pulse transmitting in the glass material under different input pulse conditions is studied.

圆偏振光入射时，可以获得更短脉冲宽度的压缩脉冲和更窄的光谱宽度。

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。