This paper presents a study to identify the type and location of yarn periodical errors applying three different signal processing approaches based on FFT – Fast Fourier Transform, FWHT-Fast Walsh-Hadamard Transform and FDFI – Fast Impulse Frequency Determination. The errors determination is applied for the mass measurement of yarn using a capacitive sensor and for the measurement of yarn diame...

This study investigated the influence of multiple surface features on perceived softness during rubbing motion. Participants rubbed and ranked 13 types 3D-printed rigid specimens with different macroscopic shapes microscopic grains. A regression analysis revealed that amplitude sinusoidal shape diameter grains positively negatively affected signal-to-noise ratio calculated by ranks, respectivel...

This paper reports on double shear push-out tests conducted steel-to-ultra-high-performance concrete (UHPC) connections based studs of 30- or 22-mm diameter in slabs 35, 55, 150 mm thickness. The results show that with an increase stud diameter, the longitudinal strength has improved by 25% and 94% for ultra-short long (of aspect ratios below equal to 4.0), respectively. For short studs, both r...

Although intradermal primary tumor growth and spontaneous liver metastasis of ESbL-lacZ lymphoma in syngeneic DBA/2 mice are progressive and malignant, they are characterized by a transient plateau period with a constant tumor diameter and a low number of metastasized cells in the liver. This period, which was shown to be immune dependent, was followed by a second expansion phase characterized ...

BACKGROUND: Numerous studies in rats and a few other mammalian species, including man, have shown that the sinusoidal cells constitute an important part of liver function. In the pig, however, which is frequently used in studies on liver transplantation and liver failure models, our knowledge about the function of hepatic sinusoidal cells is scarce. We have explored the scavenger function of pi...

the study of wave and its propagation on the water surface is among significant phenomena in designing quay, marine and water structures. therefore, in order to design structures which are exposed to direct wave forces, it is necessary to study and simulate water surface height and the wave forces on the structures body in different boundary conditions. in this study, the propagation of static ...

In this paper, the performance of the recently proposed adaptive signal models on modeling speech voiceless stop sounds is presented. Stop sounds are transient parts of speech that are highly non-stationary in time. State-of-the-art sinusoidal models fail to model them accurately and efficiently, thus introducing an artifact known as the pre-echo effect. The adaptive QHM and the extended adapti...

Multi-resolution sinusoidal modeling is a method of representing audio signals as a sum of discrete sinusoids having various durations, and time-varying frequencies, phases, and amplitudes. This paper discusses the motivation for the multiresolution sinusoidal model (MRSM) and various structures used to compute it. A new filter-bank analysis structure is presented that is simpler than previous ...

The exponential sinusoidal model (ESM) for parameterizing speech signals is proposed in this paper. The main feature of the ESM is that the amplitude of each sinusoidal component is allowed to vary exponentially with time. A novel variable segmentation strategy is applied first to separate individual transients of a voiced phoneme, which can then be fitted with the ESM. The epoch of a transient...