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Methods This study selects 17 bimaxillary protrusions adolescents and contrast 8 hard-tissue controls before and after orthodontic treatment with Paired t Test to evaluate the changes in maxilla, mandible and SN.

对17名青少年双颌前突患者拔牙矫治前后的8项硬组织指标进行对比，通过配对t检验来评价治疗后患者上颌骨、下颌骨及前颅底的生长变化。

Baseline celite- and kaolin-activated clotting times werealso measured and repeated 3 min after a standard heparin doseof 400 U/kg.

计算每个病人给予肝素前后的 ACT 变化和肝素的剂量－反应关系。

Further, with a semi-quantitative RT-PCR technique, the temporal expression of UuMAPKKK-like in U. unicinctus coelomic fluid cells was measured after stimulated by sulfide. The mRNA transcript of UuMAPKKK-like was low in the control and short time stressed (2 h, 6 h) groups, up-regulated gradually after 12h stimulation, and then reached its maximum level at 48h.

进一步采用RT-PCR技术对其在硫化物刺激前后的表达进行了检测，结果显示该基因在对照和应激后2h、6h的个体中表达较弱；刺激12h后表达量增高，并随应激时间增加，呈明显上调趋势。

Their load resistance behavior before and after applying FRP strengthening is investigated and analyzed by compositively using the methods of experiment, finite element numerical analogue and theoretical analysis.

本文将试验手段、有限元数值模拟方法和理论分析结合起来，对三组核心区配箍率不同的梁柱节点试件采用玻璃纤维片材加固，并对加固前后的承载性能进行了比较和分析。

The IR spectra of wastewater simulated with two typical fatty amine flotation collectors of decyl propyl ether amine and stearylamine were studied and the mechanism of degradation of fatty amine flotation collectors by the UV/H2O2/air oxidation method was discussed.

测定了十二烷基丙基醚胺和十八胺两种典型脂肪胺浮选捕收剂模拟废水降解前后的红外吸收谱图，初步探讨了UV/H2O2/air光化学氧化法处理脂肪胺浮选捕收剂模拟废水的降解机理。

Based on data gained from in - site , ANSYS finite element analysis software is used , numerical value simulation was carried out in stress distribution、mechanics property、 methane removal of coal body which is located in front of drivage face before and after taking hydraulic pressing measures.

以现场实测数据为基础，利用ANSYS有限元分析软件，对水力挤出措施实施前后的掘进工作面前方煤体应力分布、力学性质、瓦斯运移进行数值模拟，研究了水力挤出措施的消突机理。

Based on data gained from in- site, ANSYS finite element analysis software is used, numerical value simulation was carried out in stress distribution、 mechanics property、 methane removal of coal body which is located in front of drivage face before and after taking hydraulic pressing measures.

以现场实测数据为基础，利用ANSYS有限元分析软件，对水力挤出措施实施前后的掘进工作面前方煤体应力分布、学性质、斯运移进行数值模拟，研究了水力挤出措施的消突机理。

METHODS: FRC and LCI were measured using a SF6 multibreathwashout technique while respiratory resistance and elastance were extracted from the input impedance obtained by forced oscillationtechnique in 18 children (3–8 yr) before and after oralpremedication with midazolam.

功能残气量和肺清除指数通过六氟化硫多次呼吸-洗出技术测定，而呼吸道的阻力和弹性回缩力则通过用力震荡技术中阻抗变化测定。研究共测定了18名儿童（3-8岁）使用咪唑安定前后的上述指标。

Methods The anti-inflammatory and analgesic effects of the crude and processed Oxytropis falcate Bunge were observed.

目的 通过对藏药莪达夏炮制前后的抗炎镇痛实验研究，探讨该药炮制方法与药效的关系。

The Fourier transform infrared spectroscopy,ultraviolet-visible spectroscopy,nuclear magnetic resonance spectroscopy(1H NMR)and TG analysis were used to study the oxidation of corn stover lignin by chloride dioxide and subsequently modified by furfuryl alcohol.

采用傅里叶变换红外光谱、紫外-可见光谱、核磁共振(1HNMR)以及热重TG分析技术对玉米秸秆木质素被二氧化氯氧化前后的结构变化及其与呋喃甲醇改性的产物进行了表征。

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。