The hemodynamic and neurohormonal changes during head-up tilt table test in patients with vasovagal syncope

Objective To study the characteristics of arrhythmia in patients with positive responses in head-up tilt table test ( HUTT).

目的探讨直立倾斜试验（HUTT）阳性反应患者心律失常发生的特点。

The addition of pharmacologic agents can often increase the positie yield of tilt table testing.

加用药物常可增加倾斜试验的阳性率。

Investigation of different hemodynamic patterns in head-up tilt table tests in patients with unexplained syncope

不明原因晕厥患者在直立倾斜试验中血流动力学反应模式的研究

Tilt Table Testing Distinguish Post-exercise Syncope with Negative Tread-mill Exercise Testing

倾斜试验鉴别运动试验结果阴性患者运动后晕厥

Upright Tilt Table Testing and Syncope Evaluation

直立倾斜试验与晕厥评价

Diagnostic influence of different angles of head-up tilt table test on children with vasovagal syncope

不同角度直立倾斜试验对儿童血管迷走性晕厥诊断的影响

Objective To explore the clinical application of tilt table test ( TTT) to diagnose syncope.

目的观察直立倾斜试验对儿童晕厥患者的诊断应用价值。

Comparison of diagnosis of head-up tilt table test on syncope patients with different age and gender

不同年龄和性别不明原因晕厥患者直立倾斜试验的诊断比较

Head-up tilt table test in unexplained syncope on the clinical application

直立倾斜试验对不明原因晕厥的临床应用

Care of patients with Unexplained Syncope under Upright Tilt Table Test

不明原因晕厥病人行直立倾斜试验的护理

Directing the patients to take medicine of take the treatment of tilt table after the test.

试验结束后，指导阳性患者服药或倾斜台治疗。

Researches on frictional properties of HDPE geomembrane using tilt table device

HDPE膜界面摩擦特性的斜板仪试验研究

Comparison of heart rate and blood pressure of pilots between exercise test and tilt table test

飞行员运动试验与倾斜试验后心率和血压变化的比较

Serious responsiveness during tilt table test and its management

直立倾斜试验的严重反应类型及其预防和处理

Methods Heart rate, blood pressure and 12 lead ECG were measured with DT 1 automatic tilt table.

方法采用DT－1型自动倾斜床测定倾斜前后心率，血压及12导联心电图及其服用心得安以后的变化。

The principle and design process of the Quadrature Mirror Filter ( QMF) in 16 kbit/ s SB& PC speech compression coding system are discussed. The hardware and software structures for implementing QMF to split band are also given in the paper.

本文讨论了16kbit/s分带自适应（SB&APC）预测语音压缩编码系统中的正交镜象滤波器（QMF）的原理和设计过程，并给出了实现QMF的硬件和软件结构。

Based on this two channel perfect reconstruction QMF can be designed with higher reconstruction accuracy, whose power complementary is 10~ (-8) dB, while that of the traditional method is only 10~ (-3) dB.

实验证明，由此得到的二通道完全重建QMF组的功率互补对数幅频特性可达10~（-8）dB，而传统方法仅能达到10~（-3）dB，具有很高的重建精度。

Quadrature mirror filters ( QMF) are often used in sub-band coding to eliminate aliasing between sub-bands.

子带编码中，广泛采用正交镜像滤波器（QMF）消除各子带谱的混叠。

With the design result, QMF banks are optimized further via Genetic Algorithm, thus the performance of QMF banks approximates perfect reconstruction, and the simulation result is listed.

然后，以初步设计好的QMF组系数为初值，通过遗传算法对系统进一步优化设计，从而使QMF组性能进一步提高，接近准确重建的目标。论文的最后给出了优化前后的模拟仿真结果。

The approximate solution of the equation of motion and the general diagram of acceptance for 100% ion transmission in QMF

四极滤质器中离子运动方程的近似解法及100%传输时的接受相图