Strong gravitational lensing of waves (GWs) occurs when the GWs from a compact binary system travel near massive object. The lensed waveform is given by product amplification factor $F$ and unlensed waveform. For many axisymmetric lens models such as point mass singular isothermal sphere that we consider, can be calculated in terms two parameters, ${M}_{L}$ source position $y$. In geometrical-o...

There are many modulation methods suitable for optical wireless communication. OOK, PPM are adopted widely in optical wireless communication for its high average-power-efficiency. DPPM, DPIM and DH-PIM are three new modulation methods for optical wireless communication, which may be the substitutes of PPM because of their better performance in power efficiency and bandwidth efficiency. In this ...

The performance of DH-PIM is analysed in the presence of intersymbol interference. The ceiling bounce model is used to model the non-directed indoor optical wireless channel. The packet transmission rate, channel impulse response, eye diagram and optical power requirements versus normalised delay spread are presented. Results are compared with other modulation schemes. Compared with PPM and DPI...

This paper presents a two-stage procedure, based on the Fisher criterion and automatic classi cation trees, for designing acoustic parameters (APs) that target phonetic features in the speech signal. This procedure and a subset of the TIMIT training set were used to develop acoustic parameters for the phonetic features: sonorant, syllabic, strident, palatal, alveolar, labial and velar. Results ...

This research report presents a bundle adjustment technique which is independent on camera intrinsic parameters. Standard bundle adjustment techniques consider camera intrinsic parameters as unknowns in the optimization process. The scheme proposed in this report di ers from previous standard techniques since unknown camera intrinsic parameters are computed as a function of the 3D structure and...

Exhaled nitric oxide (NO) remains a promising noninvasive index for monitoring inflammatory lung diseases; however, the plateau concentration (C(NO,plat)) is nonspecific and requires a constant exhalation flow rate. We utilized a new technique that employs a variable flow rate to estimate key flow-independent parameters characteristic of NO exchange in a group (n = 9) of 10 to 14 yr-old healthy...

Currently accepted techniques utilize the plateau concentration of nitric oxide (NO) at a constant exhalation flow rate to characterize NO exchange, which cannot sufficiently distinguish airway and alveolar sources. Using nonlinear least squares regression and a two-compartment model, we recently described a new technique (Tsoukias et al. J Appl Physiol 91: 477-487, 2001), which utilizes a pree...