Aeorodynamic and Myoeslastic forces Essay Example | Topics and Well Written Essays - 500 words

Aeorodynamic and Myoeslastic forces - Essay Example â€Å"The glottis is the opening in the larynx that exists anteriorly (to the front) between the vocal folds and posteriorly (to the back) between the arytenoid cartilages. The part of the glottis between the vocal folds is known as the membranous glottis and the part of the glottis between the arytenoid cartilages is known as the cartilaginous glottis† {Mannel 2005] The function of the vocal folds in terms of closing and opening depends on the air pressure that is developed below and above the glottis. The glottal flow or glottal pulse remains zero when the phonation is in the closed phase, and the glottal pulse slowly increases during the opening phase of the phonation process. â€Å"The nature of phonation is such that the glottal pulses occurs as a series of pulses. The vibration has involves the pulse rate of the glottis with the additional function of the myoelastic and the aerodynamic forces. The combination of the elastic and the aerodynamic forces sets up as an oscillatory opening and closing of the glottis, causing what would otherwise be a steady air stream leaving lungs to be broken into a series of puffs of air many times per second †¦The sound that results form these puffs is called as phonation.†[Sherman Fitch III 1986]. The myolelastic and aerodynamic force initiates the vibration of the vocal folds. This aerodynamic forces initiates the vibrations of the tissues†. [Courey [2003]

Humanities Baroque Period or Italian Reinassance or Northern Essay

Humanities Baroque Period or Italian Reinassance or Northern Reinassance - Essay Example The Fountain of the Four Rivers, created between 1648 and 1651 and commissioned by Pope Innocent X, is Bernini’s largest and most celebrated fountain. He was asked to erect a monument sufficiently large enough to emphasize the center of the square without upsetting its unity. â€Å"At the same time, the fountain – not axially related to the faà §ade of S. Agnese – had to be attuned to the Baroque church that had been planned for the area, but not yet erected†. The difficulty of the assignment itself was daunting, yet Bernini managed to execute a fountain that not only complemented its location, but also captured attention as a monument in and of itself, speaking with eloquence and grace regarding the new ideas of his age. Although the fountain was actually executed by a large group of co-workers who worked under Bernini’s direct supervision, existing sketches provide proof that the idea and the design are definitely Bernini’s. In recognition of the Age of Exploration that characterized this entire time period, the fountain represents the four continents that were identified in Bernini’s time, which were Africa, Europe, Asia and the Americas, via the four major rivers that were associated with each of these continents – the Nile, the Danube, the Ganges and the Rio della Plata respectively. The continents are represented by a different figure at each of the cardinal points of the fountain with significance attached to the direction they face helping viewers to identify the continent being represented.