x " From the days of John the Baptist until now, the kingdom of heaven suffereth violence, and the violent bear it away. " – – Matthew 11:12 denote the directional width of P in the direction of v. A set Q ⊆ P is a ε-coreset for directional width, if ∀v ∈ S (d−1) ω(v, Q) ≥ (1 − ε)ω(v, P). Namely, the coreset Q provides a concise approximation to the directional width of P. The usefulness of suc...

x " From the days of John the Baptist until now, the kingdom of heaven suffereth violence, and the violent bear it away. " – – Matthew 11:12 denote the directional width of P in the direction of v. A set Q ⊆ P is a ε-coreset for directional width, if ∀v ∈ S (d−1) ω(v, Q) ≥ (1 − ε)ω(v, P). Namely, the coreset Q provides a concise approximation to the directional width of P. The usefulness of suc...

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In general the audible sound has the characteristics of spreading, however the ultrasound is directional. This study used amplitude-modulating technique for an array of 8 ultrasonic transducers to produce directional audible sound beam. In this study sound field distribution for the directional audible sound beam has been investigated. The effect of different weightings varied with different fr...

Text segmentation is an important step in the process of character recognition. In literature, there have been numerous methods that work very well in practical applications. However, when an image includes strong noise or surface reflection distraction, accurate text segmentation still faces many challenges. Observing that the stroke width of text is stable and significantly different from tha...

The ability to execute appropriate medio-lateral foot placements during gait is thought to require active frontal plane control and to be critical in maintaining upright posture during gait. The aggregate frontal plane metrics of step width and step width variability have been assessed for post-stroke populations, but only under normal walking conditions. However, in the case of stroke, limb sp...

Recently, many works have considered a physical properly of antenna in MIMO channel models, such as radiation pattern effective for MIMO system. However, effect of antenna for MIMO with different algorithms is required and also with different environments of signal behavior at each end of the link. Thus, a traditional antenna such as Omni-directional antenna generally is used to design MIMO sys...

The directional dynamics of the resonant Rayleigh scattering from a semiconductor microcavity is investigated. When optically exciting the lower polariton branch, the strong dispersion results in a directional emission on a ring. The coherent emission ring shows a reduction of its angular width for increasing time after excitation, giving direct evidence for the time-energy uncertainty in the d...

Cardiovascular physiologists frequently infer directional changes in cardiac stroke volume and cardiac output from changes in aortic pulse pressure and atrial pressure. Errors are probably not infrequent. The Hamilton and Remington pressure pulse contour method can also indicate directional fluctuations in cardiac stroke volume. Comparison of the results of the two methods of analysis in situat...