And ( 5 ) under the condition of hypoxia and perfusion with deprived glucose content for 15 min the VDD and RPF were decreased ( P < 0 01 ) .

无糖低氧液灌流15min后，该 慢 电位 VDD和RPF明显减慢（P<001）。

Clinical application of a single lead VDD pacing system

单根 电极 VDD起搏器的临床应用

Conclusion : VDD pacing is an effective new method to treat patients with HOCM .

结论： VDD 起搏 植入 简便 、 房室 同步 功能 稳定，对HOCM患者不失为一种新的有效的治疗方法。

In this model VDD traps DOS VM ′ s I / O port access to drive Virtual Device and simulates a hardware interrupt to the DOS VM .

在该模型中，虚拟设备驱动程序捕获 DOSVM的I/O端口访问去驱动虚拟设备，并为DOSVM 产生虚拟硬件中断。

On the basis of above results it appears that the binding of ET-1 with ET_A receptor may induce an activation of K_ ( ATP ) channels with resultant increase in K ￣ + current so as to decrease the velocity of diastolic depolarization in the pacemaker cells .

根据上述结果，似 可认为，ET－1与 ET＿A受体的结合可激活K＿（ATP）通道，致使K￣＋电流增加和起搏细胞的 VDD 减慢。

Objective : We report our clinical use of VDD pacing in one patient with HOCM and its hemodynamic effects .

目的：用 VDD心脏起搏治疗1例肥厚性梗阻型心肌病（HOCM），并观察其临床及血流动力学效果。

In PSPICE simulating report when supply voltage ( VDD ) is 0.5V the output voltage of 6-stage charge pump can up to 2.68V .

PSPICE模拟结果，当电源电压为0.5V时，6级电压泵可使输出电压放大到 2.68V。

Significant differences were found in SCL-90 scores between the DDD / VDD and VVI groups the former being better than the latter .

房室 顺序起搏组 SCL90得分与心室单腔起搏组比较差异有显著性，前者优于后者。

By removing power line ( Vdd ) and bank photo process we simplified the fabrication process from 8 to 6 mask steps .

通过去除电源线（ Vdd）和 触 排 （bank）光处理工艺，将8步掩模简化至6步。

A method and apparatus for high performance volatile disk drive ( VDD ) memory access using an integrated direct memory access ( DMA ) engine .

一种方法和装置，用于使用集成直接存储器访问（DMA）引擎进行高性能易失性磁盘驱动器（ VDD）存储器访问。

The VDD input is also used as the reference for the part so that no external reference is required .

VDD输入同时用作器件的基准 电压，因而无需外部基准 电压。

Objective To observe the clinical application of single lead DDD and VDD pacing in elderly .

目的观察老年人单 导管双腔起搏器（DDD）和 心房 感知 型 起搏器 （ VDD）起搏 系统的临床应用。

Then based on the randomicity of VDD_rect the design of a TRNG by a mixed-signal method is realized .

接下来， 利用 VDD rect的随机性，实现了一种基于数模混合的 TRNG设计。

On this basis studies the whole chip ESD protecting structures analyzes the ESD clamps between VDD and VSS / ground .

在此基础上，本文研究了全芯片抗静电结构，分析了 VDD和VSS/地之间的 箝 位结构对整个芯片抗静电能力的影响。

Results : VDD pacing system was successfully implanted in 25 patients .

结果：25例均成功置入 VDD起搏系统。

The AD7693 is a16-bit successive approximation analog-to-digital converter ( ADC ) that operates from a single power supply VDD .

AD7693是一款16位、逐次逼近型模数转换器（ADC），采用单电源（ VDD ）供电。

Methods Acute hemodynamic parameters were measured with Swan-Ganz catheter at varied AVD in DDD and VDD modes in 20 patients .

方法对20例置入DDD起搏器的患者经左侧锁骨下静脉插入Swan-Ganz导管，分别测量DDD方式及 心房 感知 心室 起搏 （ VDD ）方式下的不同AVD 起搏的急性血流动力学效应。

Measurement of Atrial Sensing Function in Patients With Single Lead VDD Pacemaker CHRONIC ATRIAL TACHYCARDIA

单根 电极 心室 起搏 双 腔 感知 双重 反应型起搏器心房感知功能的测试观察慢性房性心动过速

A kind of Voice Diallers for Dummies ( VDD ) with its principles and realizations has been introduced in this paper .

本文将介绍一种傻瓜式 声控电话机的基本原理和实现。

The simulation results showed that the expected goals have been achieved . The three-stage system in standard single well process is capable of avoiding the inner high voltage impact and made the average gain per stage as high as 96 % or more of Vdd .

仿真结果表明，提出的设计目标已实现，采用普通工艺的系统能够避免系统内高压的影响，同时在 多种 输入 电压情况下，系统均能使得每级的 电压增益高达 96%以上。

Results Holter study showed that DDD and VDD pacing were VAT mode and the rate of atrioventricular synchronic pacing was over 95 % .

Holter检查显示： VDD和DDD起搏器的 工作模式大多为VAT，房室同步起搏率达95%以上。

Initial Clinical Experience of VDD Pacing in Patients with Obstructive Hypertrophic Cardiomyopathy

VDD起搏器治疗肥厚性梗阻型心肌病临床初探