To investigate the affect of radiofrequency ablation on the electrical conduction of coronary sinus and interatrial conduction in patients with paroxysmal superventricular tachycardia.

①射頻消融可造成經(jīng)冠狀竇傳導(dǎo)的延遲及心房間電傳導(dǎo)的延遲一级免费SV黄片。

Biatrial and right ventricular triple chamber pacinmg is founded through implanting coronary sinus lead to pace left atrium on the base of conventional right atrial and right ventricular dual chamber pacing,which realizes the synchrony of electrical activities in both two atriums,remove interatrial conduction block and interatrial reentry,and prevent and treat atrial tachyarrhythmias induced by interatrial conduction block.

在常規(guī)右房、右室雙腔起搏的基礎(chǔ)上日本一本之道高清不卡免，植入冠狀竇電極起搏左房www..cao，建立雙房右室三心腔起搏系統(tǒng)，實(shí)現(xiàn)雙房電活動(dòng)的同步化男人的天堂最新网址，消除房間傳導(dǎo)阻滯和房間折返人人上人人操超碰，防治由房間傳導(dǎo)阻滯引起的房性快速性心律失常。

Characteristics of nerve fiber conduction and conduction velocity.

熟悉神經(jīng)元的一般結(jié)構(gòu)和功能亚欧综合在线，神經(jīng)纖維傳導(dǎo)的特征和傳導(dǎo)速度欧美乱交牲交乱频。

In this paper, we use this numerical method and adopt operator splitting method to simulate the conduction model of action potential in two-dimensional cardiac ventricle tissue,the conduction model of the action potential in two-dimensional cardiac ventricle tissue is denoted by one reaction-diffusion equation with a series of ODE describing ionic channels of cell, at the same time,we adopt the compact alternate direct implicit difference method to simulate that model,compar-ing these value results,get some conlusions.

本文中，我們利用攝動(dòng)有限差分方法和算子分裂思想去模擬二維心室肌中動(dòng)作電位的傳導(dǎo)模型无码AV免费网站，該模型由一個(gè)描述細(xì)胞離子通道的常微分方程組和一個(gè)反應(yīng)擴(kuò)散方程組成。

On the basis of the conservation equation of continuous medium and in combination with mechanics of fluid through porous media and the heat transfer theory in porous media, conservation equations in porous media (continuous equation, momentum equation and energy equation ) are derived, When constructing the downhole temperature model, heat transfer in a wellbore is considered as the heat transfer in a vertical tube, the flow in a wellbore considered as sufficiently parallel flow, heat transfer in injection zones considered as heat conduction and convection in porous media, the flow in injection zones considered as flow through porous media, heat transfer in adjacent rocks considered as heat conduction in porous media.

在建立井下溫度場模型時(shí)JULIA视频一区，把井筒的傳熱看作是豎直圓管中傳熱問題国产A级片免费视频，把井筒的流動(dòng)看作是充分發(fā)展的層流流動(dòng)；把注入層中的傳熱看作是多孔介質(zhì)中導(dǎo)熱和對流的傳熱問題九九一免费视频，把注入層中的流動(dòng)看作是滲流欧美一级精品视频二区；把圍巖中的傳熱看作是多孔介質(zhì)中導(dǎo)熱問題。

The influence of different assembled condition such as assembly method, concentration of zirconium source and pH value on the effectiveness of assembly were evaluated via DSC-TG, FT-IR, Uv-vis and SAXRD et al. It showed that the assembly effectivness of uncalcined 3 Si/Zr_10# sample was best.c The optical characteristic, which including light-conduction in infrared band and polarity in visible band, of dip-coating film and membrane assembled zirconia after processing parameters of assembly optimized were observed via FT-IR and Uv-vis. The polarity was characterized by polarizing angle through calculation from light-transmittance, light-reflectance and fresnel coefficient. qualitative analysis showed that the polarity of Si/Zr_10 # dip-coating film assembled was best.d Adopting zirconium oxychloride as zirconium source, CTAB as template, employing different CTAB adding sequence, two mesoporous zirconia samples were prepared. The template effect of two samples was discussed. It showed that the effect of the sample which CTAB adding sequence was same as mesoporous silica film was better. The light-conduction in infrared band of these samples was also studied, which offered comparison to the polarity of zirconium dioxide assembled within mesopore.

結(jié)果顯示：組裝條件優(yōu)化后的uncalcined 3 Si/Zr_10#厚膜樣組裝效果最好成年男人深夜在线视频播放，其組裝液對應(yīng)的pH值最利于該鋯源離子模板交換組裝观看视频高清无码黄色网站免费下载视频； c選用FT-IR、Uv-vis對組裝條件優(yōu)化后納米氧化鋯/介孔氧化硅厚膜91av超碰在线观看、納米氧化鋯/介孔氧化硅薄膜包括紅外導(dǎo)光性smag在线观看、可見光區(qū)內(nèi)的偏光性在內(nèi)的光學(xué)特性進(jìn)行了分析，其中偏光性以膜層透光性毛片啪啪片A片、反光性及菲涅耳系數(shù)計(jì)算出的偏振角即布儒斯特角表征97免费人人干人人操人人摸，定性分析顯示，Si/Zr_10#ZrO_2/介孔氧化硅厚膜偏光性最好黄页网站免视频9； d以氧氯化鋯ZrOCl_2·8H_2O為鋯源欧美本精品男人aⅴ天堂，CTAB為模板劑亚洲免费福利视频，采用不同的模板劑加入順序，探索性地制備兩介孔氧化鋯樣久久久特级黄毛片免费看，分析了兩介孔氧化鋯樣的模板效果欧美午夜艳，得出模板劑加入順序同介孔氧化硅薄膜時(shí)介孔氧化鋯樣的模板效果較好，并分析了所得樣品的導(dǎo)光性国产午夜福利在线播放92，為鋯氧粒子引起的附加光學(xué)特性分析提供了參考和對比亚洲三级片视频。

At first,the limitation of the general heat conduction equation is discussed and then,nonlinear heat conduction equations are derived,when we consider that thermal conductivity,specific heat capacity and density are dependent of temperature.

研究了線性情形中熱傳導(dǎo)方程的局限性，在此基礎(chǔ)上考慮到熱傳導(dǎo)方程中導(dǎo)熱系數(shù)69黄色视频在线播放、比熱容国产人澡人澡澡澡人碰视频、密度與溫度的關(guān)系，導(dǎo)出了非線性熱傳導(dǎo)方程欧美性爱AA级，并求出了幾類非線性熱傳導(dǎo)方程的孤波解黄色一级片网址免费。

The tank body of the trailer adopts high quality heat-insulation shell and conduction oil pipe system that can input conduction oil or vapor to heat asphalt.

該車罐體采用高品質(zhì)隔熱保溫外殼并配備導(dǎo)熱油管道系統(tǒng)，可以輸入熱油或蒸氣加熱瀝青日韩欧美亚洲中文乱码青青。

Were recorded; the threshold intensity, length of the refractory period and velocity of conduction were measured; the influence of injuries to the conduction was also examined.

分別記錄蟾蜍坐骨神經(jīng)干動(dòng)作電位的波形综合自拍，測量蟾蜍坐骨神經(jīng)干的閾刺激強(qiáng)度、不應(yīng)期和興奮傳導(dǎo)速度免费公开超碰在线，考察損傷對傳導(dǎo)的影響91香蕉在线精品一区在线观看。

In this paper the model of the thermal conduction between the wellhole and the formation was developed after considering the effects of the heat conduction and the heat convection on the basis of the law of conservation of energy, then the temperature distribution varied with the depth of the interior and the exterior of the drilling pipe was calculated during the gas drilling, which provides the accurate basic data for exact calculation of the temperature distribution of the wellhole.

本文根據(jù)能量守恒定律，考慮熱傳導(dǎo)美国韩国黄色自拍偷拍片、熱對流的影響性多多视频，建立了井筒和地層之間的熱傳遞模型，計(jì)算了氣體鉆井過程中管柱內(nèi)外沿井深的溫度分布久久av毛片天堂一区毛片，為氣體鉆井計(jì)算井筒壓力分布提供了準(zhǔn)確的基礎(chǔ)數(shù)據(jù)欧美wwwxx。