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先天性牙齿缺失患者EDA基因突变检测及其表现型分析
牙缺失 EDA基因 突变 表型
2018/11/30
目的：探讨EDA基因突变在单纯型和综合征型先天性牙齿缺失患者中的检出率，并汇总EDA基因突变的患者口内恒牙缺失情况，尝试分析EDA基因突变相关的恒牙列缺失牙位分布特点。方法：临床收集到174例（143例单纯型、31例综合征型）先天性牙齿缺失患者以及451名正常对照者，通过采集外周静脉血或者取颊黏膜拭子，提取基因组DNA，PCR扩增EDA基因编码区并测序，与数据库筛查比对。对于EDA基因突变的患者，...
杭州电子科技大学电子信息学院EDA技术课程组发表的主要教研论文。
为了检测定向裂隙介质中横波分裂的方位属性特征，分析地震属性随裂隙密度和方位变化，采用人工吸收边界和反周期扩展边界，用伪谱法获得不同裂隙密度和不同方位地质模型三分量地面记录；应用时频分析和剪切波偏振分析研究由于裂隙方位和密度引起的横波分裂.结果显示，裂隙密度和方位决定着横波分裂的时差和偏振.快慢横波的延迟时间随裂隙密度增大而增加，不同方位相同裂隙密度的横波分裂时差有微小的变化.在45°方位检测时间延...
基于BISQ模型双相EDA介质中VSP记录模拟
BISQ模型 EDA VSP 交错网格
2008/5/17
本文针对目前的现状，采用了近来比较热门和精确的交错网格有限差分法实现地震频带内弹性波的数值模拟.通过实例模拟了VSP记录，证实了这种方法的可行性和有效性.从我们的正演研究中，发现慢纵波的振幅与渗透率成正比，与孔隙度成反比；而慢纵波的速度则和孔隙度和流体的密度成正比.
摘要 本文由关联电子给-受体(EDA)配位反应焓的Drago四参数方程, 导出聚合物给体与低分子受体的EDA配位反应体系中与反应平衡常数相应的四参数方程, 给体是N-乙基咔唑和在不同条件下聚合的聚乙烯咔唑, 受体是单、多硝基芴酮。用此方程从观测的平衡常数值求得要应的各参数值, 并把各参数与由NMR谱图解法求得的聚合物构型参数作了适当的相关性处理。
Adsorption Of Ethylenediamine (EDA) On Montmorillonite Saturated with Different Cations—V. Ammonium- and Triethylammonium-Montmorillonite: Ion-Exchange, Protonation and Hydrogen-Bonding
Triethylammonium-Montmorillonite Adsorption Ethylenediamine
2012/2/15
On NH4- as well as on (C2H5)3NH-montmorillonite EDA was adsorbed in protonated form. The extent of protonation depended on the relative basicities and concentrations of the interacting compounds. In t...
Adsorption of Ethylenediamine (EDA) on Montmorillonite Saturated with Different Cations IV: Al-, Ca- and Mg-Montmorillonite: Protonation, Ion-Exchange, Co-ordination and Hydrogen-Bonding
Adsorption Ethylenediamine Montmorillonite Hydrogen-Bonding
2012/2/14
Ethylenediamine (EDA) adsorbed from aqueous solution or vapor phase on Al-, Ca- and Mg-montmorillonite was retained to a more or less large extent in protonated form. The NH3+ :NH2 ratio decreased wit...
Adsorption of Ethylenediamine (EDA) on Montmorillonite Saturated with Different Cations—III. Na-, K- and Li-Montmorillonite: Ion-Exchange, Protonation, Co-Ordination and Hydrogen-Bonding
Adsorption of Ethylenediamine Montmorillonite Co-Ordination Hydrogen-Bonding
2011/11/18
Abstract: Ethylenediamine (EDA) is adsorbed from aqueous solution on Na-, K- and Li-montmorillonite as the monoprotonated cation (EDAH+) through an ion-exchange process. On washing with distilled wate...
Adsorption of Ethylenediamine (EDA) on Montmorillonite Saturated with Different Cations—II. Hydrogen- and Ethylenediammonium-Montmorillonite: Protonation and Hydrogen Bonding
Ethylenediammonium-Montmorillonite Montmorillonite Protonation Hydrogen Bonding
2012/2/17
The form under which ethylenediamine (EDA) is adsorbed from aqueous solution by hydrogen- and ethylenediammonium-montmorillonite was studied as a function of the amount of amine present in the system....