Sound output

For most speech sounds, the acoustic signal leaves via the mouth - such sounds are termed oral. For a few however, the sound leaves via the nose such sounds are called nasal. In English the first 

The velum is a piece of skin at the back of the mouth. When it is raised, the nasal cavity is blocked off and the speech is completely oral. When the velum is lowered, the sound will be nasal or nasalised, depending on if the mouth is closed or open. It is important to note that in an oral 

For most speech sounds, the acoustic signal leaves via the mouth such sounds are termed oral. For a few, however, the sound leaves via the nose such sounds are called nasal. In English the first sounds in no and me are nasal, as are the last sounds in THEM, thin and thing. As evidence that these sounds leave via the nose rather than the mouth, say mmmmm and then pinch your nose so as to close it - the sound will stop. Sometimes sound exits through both the nose and the mouth. There are no canonical sounds in English that do this, but in French, for instance, the last sound in ont exits through both the nose and the mouth. Such sounds are called nasalised. 

---

Note that Mix 6 is 264 times more sensitive than Mix 1. Mix 2 and 4 are typical of those used in fireworks salutes, and they produce essentially the same sound output. However, there is a factor of at least 4 in their sensitivity to electrostatic discharge. 

While some sound sources, such as chain saws and power mowers, produce a relatively constant sound output, others, like a 75-piece orchestra, are variable. The sound from such an orchestra might have apeak factor of 20 to 30 dB the momentary, or peak, levels can be this amount higher than the long-term average SPL indicated [4]. 

Oxide-coated cathodes that are indirectly heated are more efficient ( 1 eV) than thoriated tungsten filaments, but they cannot sustain the high-voltage high-current operating conditions associated with power grid tubes. When the maximum output power required is below a few hundred watts, they are the device of choice and find application in low-power high-frequency transmitters. They are also widely used by audiophiles who feel that vacuum-tube power amplifiers produce a quality of sound output that is superior to that produced by semiconductor devices. 

The sound intensity level generated by a source of sound within its effective range depends on the properties of the source of sound (sound output, directional characteristics, sound spectrum), the location of the source and the receiver, the terrain (and on any obstacles in the path of sound), the local propagation conditions determined by local topography, growth and cultivation, and from meteorological conditions. 

Detection of Bromine Vapor. Bromine vapor in air can be monitored by using an oxidant monitor instmment that sounds an alarm when a certain level is reached. An oxidant monitor operates on an amperometric principle. The bromine oxidizes potassium iodide in solution, producing an electrical output by depolarizing one sensor electrode. Detector tubes, usefiil for determining the level of respiratory protection required, contain (9-toluidine that produces a yellow-orange stain when reacted with bromine. These tubes and sample pumps are available through safety supply companies (54). The usefiil concentration range is 0.2—30 ppm. 

If, after assessing the various computer and software packages, the decision is made to implement the proposed maintenance system on computer rather than by manual methods caution must be exercised. Irrespective of the above-mentioned benefits, the use of a computer does not increase work output but it does provide the department with a very sound method of improving the management of the company s assets and resources. 

During tiie ongoing assessment, tiie nurse assesses the respiratory status every 4 hours and whenever tiie drug is administered. The nurse notes the respiratory rate, lung sounds, and use of accessory muscles in breathing, hi addition, tiie nurse keeps a careful record of the intake and output and reports any imbalance, which may indicate a fluid overload or excessive diuresis. It is important to monitor any patient with a history of cardiovascular problems for chest pain and changes in the electrocardiogram. The primary health care provider may order periodic pulmonary function tests, particularly for patients with emphysema or bronchitis, to help monitor respiratory status. 

Sound waves are emitted from the probe (P) at a frequency F0. They are reflected off moving red blood cells and back towards the probe at a new frequency, FR. The phase shift can now be determined by FR-F0. The angle of incidence (9) is shown on the diagram. If a measurement or estimate of the cross-sectional area of the blood vessel is known, flow can be derived as area multiplied by velocity (m2.m.s 1 = m3.s 1). This is the principle behind oesophageal Doppler cardiac output monitoring. 

In general, the requirements for plate and plate materials listed in Table 5.1 can be classified as electrical properties, corrosion resistance, mechanical properties, gas permeability or soundness, weight, and cost. Although the output power of a stack is determined by many factors, one simple interpretation of the 2010 DoE cost target is US 2 per plate, which has often been quoted as a convenient estimation [8]. In addition to the cost requirements, the other requirements are all linked either directly or indirectly to the functions of the plate mentioned earlier. 

Although the previous three chapters have been concerned with placing the CALPHAD methodology on a sound physical basis, the over-riding objective of such a method is to generate a reliable and user-fnendly output that reflects various properties of multicomponent industrial materials. The last three chapters therefore return to the more practical theme of how this can be achieved. 

The local production of natural gas in Georgia is limited, and the gas supplied from the transit systems has an almost constant output. This represents a major managerial problem as the supply does not correspond to the domestic seasonal demand (see Figure 11). The dependence on seasonal variations shows periods with significant imbalances between supply and demand (see Figure 12) [36]. That s why Georgia has to develop some sound strategy and associated infrastructure to utilize natural gas rationally. 

The final step to get the preliminary estimated threshold is the adjustment for the threshold in quiet. Since the sound pressure level of the final audio output is not known in advance, the threshold in quiet is assumed to be some amount below the LSB for the frequencies around 4 kHz. 

---