SHG

Based on the theory of aperture function of the focused Gaussian beam SHG, the non phase matched ( NPM) SHG process in a crystal sphere is analyzed, and the optimum focus condition of type ⅰ NPM SHG is discussed.

根据聚焦高斯光束二次谐波产生的孔径方程理论，分析了晶体球中的第类非相位匹配二次谐波产生过程，讨论了晶体球中第类非相位匹配二次谐波最佳聚焦参数的选择。

The spectrally noncritical phase-matching SHG in the pump depletion regime is researched. The influence of reconversion and third-order nonlinearity on the conversion efficiency, as well as on pulse shape and spectral distribution is analyzed theoretically.

研究了中、高功率密度泵浦下的折返点匹配宽带倍频特性，分析了相位失配引起的逆转换、三阶非线性效应对转换效率、脉冲形状和光谱分布的影响及机制。

Effect of parachute jumping stress on plasma ANP, Ang ⅱ, ET and SHG levels in newly recruited parachutists

空降兵新兵跳伞应激对血浆心钠素、血管紧张素Ⅱ、内皮素及胃泌素含量的影响

Methods The Balb/ c mice were immunized with the malignant human brain glioma cell SHG-44 as antigen and the hybridoma cell line secreting anti-glioma McAb steadily was obtained by using hybridoma technique.

方法以人脑恶性胶质瘤细胞系SHG-44为抗原免疫Balb/c小鼠，通过杂交瘤技术获得稳定分泌抗胶质瘤McAb的杂交瘤细胞株。

In order to suppress the heat effect of blue laser using planoconcave cavity when working, use Thermal Energy Converter ( TEC) to control the temperature of gain medium Nd: YAG crystal and SHG ( Second Harmonic Generation) LBO crystal.

为了解决平凹腔蓝光固体激光器晶体在工作中因热效应问题产生的影响，针对激光的增益介质Nd：YAG晶体和用以倍频的LBO晶体，采用半导体制冷器（TEC）准确控制其工作时的温度。

Studies on Grating Period Acceptance of Periodically Poled Crystal for SHG

周期极化晶体倍频的允许极化周期的研究

SHG Cherenkov Radiation in LiNbO_3 Waveguide

LiNbO3波导中切伦科夫辐射型的倍频

Twenty seven disubstituted phenyl benzoate compounds were designed and synthesized, and their powder second harmonic generation ( SHG) were measured by the Kurty-method.

本文设计，合成了二十七种二取代苯甲酸芳酯类化合物，测定了它们的粉末倍频效应，初步讨论了该类化合物的结构及其非线性光学性质的关系。

Materials and Methods: SHG was performed in 39 women with abnormal vaginal bleeding. The results of SHG were compared with that of transvaginal sonography ( TVS), and with the pathologic results of uterine explorative curette or hysteroscopy.

材料和方法：对39例有异常阴道出血者行SHG检查，并将检查结果与经阴道超声（Transvaginal sonography，TVS）、诊断性刮宫或宫腔镜所获得的结果进行比较分析。

When the waist radius of the fundamental wave is small, the walk-off is the main factor that makes the SHG and THG conversion efficiency decrease, while the effect of detuning angle is little.

初始入射基频光束腰半径较小时，离散效应是二次谐波转换和三次谐波转换效率降低的主要因素，失谐角对三次谐波转换的影响较小；

Methods: The hypnotic effect of SHG with threshold dosage and subthreshold of pentobarbital sodium was applied for hypnotizing tests;

方法：戊巴比妥钠阈剂量、阈下剂量催眠实验研究疏肝和胃颗粒的催眠作用；

Objective To study the function of Tob gene in human glioma cell line SHG-44 by Lipofectamine transfection so as to offer some clues for the further experimental therapy.

目的研究Tob基因在胶质瘤细胞系SHG-44中的功能，为下一步进行试验性治疗提供依据。

Effect of the Propagation Loss on the Cherenkov SHG in a Channel Waveguide Coupling Single Mode Fibres to Strip Waveguides and Packaging Techniques

传输损耗对条形波导中切伦科夫倍频的影响单模光纤与条形波导的耦合封装技术

Methods Methyl thiazolyl tetrazolium ( MTT) assay was used to measure its effects on the proliferation of SHG-44 cells cultured with different concentrations of Res for 6 h, 24 h, and 48 h.

方法四甲基偶氮唑蓝（MTT）比色法测量不同剂量的Res作用6h、24h和48h后对SHG-44胶质瘤细胞增殖的影响。

The second order nonlinear susceptibility and SHG signal in the different system

不同晶系中二阶非线性极化率及SHG信号的研究

SHG is usually performed in the first part of the menstrual cycle after menstruation.

通常在月经干净后先期做子宫超声造影.

The second order nonlinear optical material, 2,4 dinitrophenol ( DNP ) was synthesized.

合成了二阶非线性光学材料2, 4-二硝基苯酚 ( DNP),测试了其二次谐波产生(SHG ) 的强度和晶体结构.

The level of SHG 24 h before parachute jumping and immediately after jumping for demonstration parachutists were significantly lower than those of non demonstration parachutists.

示范伞兵的SHG水平在跳伞前24h与着陆后即刻均较非示范伞兵低（P<0.05）。

In this paper, the solar heat gain ( SHG) formula for the triple glazing window of the room and the solar transmittance, absorptance of each pane, total absorptance and the total reflectance of the triple glazing have been given.

本文导出了通过三层玻璃窗进入室内的太阳辐射得热量公式以及三层玻璃的总透过系数、每层吸收系数、总吸收系数和总反射系数。

Secondly, we take the KLN crystal with refractive index modulation as a SHG medium for ultrashort pulses.

其次采用了具有折射率调制的铌酸钾锂晶体作为超短脉冲的倍频介质。

Optimum phase matching for SHG in biaxial crystals

双轴晶体中二次谐波产生的最佳相位匹配条件

The characteristics of a variety of dye laser oscillators transversally pumped by SHG and THG of a Nd: YAG pulsed repetitive laser are reported and compared.

本文报导了用Nd：YAG激光二次或三次谐波横向泵浦的几种脉冲染料激光器腔型的运输特性，并进行了比较。

Study of Angle Distribution of Light Intensity in Powder SHG Method

粉末SHG法的光强角分布研究

Based on the coupled mode theory, second harmonic generation ( SHG) in the form of Cherenkov radiation from a channel waveguide has been investigated taking the propagation loss into account.

基于耦合模理论，分析了考虑传输损耗的条形波导中切伦科夫（Cherenkov）二次谐波（SHG）的问题。