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Figure 2: CVP waveform after pulling central venous catheter abnormal large a-c wave complex (Figure 1 – marked with red arrow) and CVP value was in the range of 10-12 mm Hg. Such wave pattern may resemble a cannon “a” wave of CVP.[1,2] Transesophageal echocardiography was done which demonstrated lower end of central venous catheter getting abutted with tricuspid valve early in the systole. Thi...

We developed a new technique to mathematically transform a peripheral artery pressure (PAP) waveform distorted by wave reflections into the physiologically more relevant aortic pressure (AP) waveform. First, a transfer function relating PAP to AP is defined in terms of the unknown parameters of a parallel tube model of pressure and flow in the arterial tree. The parameters are then estimated fr...

We examine the effects of spin-orbit and spin-spin coupling on the inspiral of a coalescing binary system of spinning compact objects and on the gravitational radiation emitted therefrom. Using a formalism developed by Blanchet, Damour, and Iyer, we calculate the contributions due to the spins of the bodies to the symmetric trace-free radiative multipole moments which are used to calculate the ...

Patients with congenital types of nystagmus, including congenital nystagmus (CN), latent/manifest latent nystagmus (LMLN) and combinations of the two, can be identified by waveform analysis and classified into three unambiguous groups. This categorization by waveform is supported by different clinical signs, including the relationship to strabismus. Strabismus is essential for LMLN but incident...

The modulating voltages applied to the DIII-D gyrotrons are controlled by reference signals which are synthesized by arbitrary waveform generators. These generators allow ECH operators to pre-program reference waveforms consisting of ramps, flat tops, and various modulation shapes. This capability is independent of the DIII-D central timing and waveform facilities, which provides the ECH operat...

Full-waveform acoustic logging has made significant advances in both theory and applic cation in recent years, and these advances have greatly increased the capability of log analysts to measure the physical properties of formations. Advances in theory provide the analytical tools required to understand the properties of measured seismic waves, and to relate those properties to such quantities ...

PURPOSE OF REVIEW The focus of intraoperative monitoring is moving away from invasive monitoring. This has been attributed to procedure time, cost, and the known risks, which include carotid artery puncture, arrhythmia, pneumothorax, and infection. Until recently, the venous system's contribution to the circulatory system has been incorrectly identified as being insignificant. This article summ...

This thesis investigates waveform-level synthesis models, which directly generate audio waveforms. In contrast, traditional feature-level synthesis models generate vocoder feature sequences, which are then converted to waveforms. This type of synthesis is limited by several factors, including the quality of the vocoder, the fixed-length analysis window and the lack of expressiveness. Waveform-l...

Figure 1. Spectral analysis and the Doppler display. The fast Fourier transform (FFT) separates the Doppler signal into its component Doppler-shift frequencies and determines the amplitude at each frequency. Most ultrasound machines calculate Doppler-shifted frequencies over 5 msec increments and convert this to velocity information. These velocities are then displayed in a bin whose brightness...