A pervading quality of free lyricism and a building from turns close to the ground towards jumps into the air gives the work its central focus.

The doctor, with the air of a man whose professional interests have found scope, drew Alex's attention to those excellences which might otherwise have escaped him: the fine color in comb and wattles, the length and quality of neck and saddle hackles, the firm, wide spread of the toes, and a rare justness in the formation of the ear lappets.

Passivhaus building codes in particular bring unusually good interior air quality, because the buildings change the air several times per hour, passing it though a heat exchanger to keep heat inside.

The U. S. Department of Defense investigation contract, which is ongoing, will also evaluate the effectiveness of copper alloy touch surfaces to prevent the transfer of microbes to patients and the transfer of microbes from patients to touch surfaces, as well as the potential efficacy of copper-alloy based components to improve indoor air quality.

The states, Indian tribes, and federal government are all engaged in efforts to restore and improve the water, land, and air quality of the Columbia River drainage basin and have committed to work together to enhance and accomplish critical ecosystem restoration efforts.

Other things associated with air and blood in ancient and medieval medicine included the season of spring, since it increased the qualities of heat and moisture ; the sanguine temperament ( of a person dominated by the blood humour ); hermaphrodite ( combining the masculine quality of heat with the feminine quality of moisture ); and the northern point of the compass.

The operation of engines typically has a negative impact upon air quality and ambient sound levels.

He suggested that the school should be located away from disturbing noises ; the air quality should be good and there should be plenty of food for the students and teachers.

Direct effects of El Niño resulting in drier conditions occur in parts of Southeast Asia and Northern Australia, increasing bush fires, worsening haze, and decreasing air quality dramatically.

As with any gas with differing density from air, inhaling a small volume of helium temporarily changes the timbre and quality of the human voice.

Because of poorly defined lines of responsibility, administrative conflicts often occur between local and national authorities of Goskompriroda and between Goskompriroda and a second national agency, the Hydrometeorological Administration ( Gidromet ), which is the main monitoring agency for air, water, and soil quality.

In 2009, temperatures in the deep tunnels were recorded as reaching as high as 32 ° C, and this is combined with poor air quality, which a 2003 study claimed was 73 times worse than at street level, with twenty minutes on the Northern Line having " the same effect as smoking a cigarette ".

* Air Quality Meteorology-Online course that introduces the basic concepts of meteorology and air quality necessary to understand meteorological computer models.

This avoids the deterioration which is associated with environmental hazards such as air quality, humidity, mildew problems associated with condensation and smudging.

Under the Clean Air Act, the National Ambient Air Quality Standards ( NAAQS ) are standards developed for outdoor air quality.

Within the effects on workers, chief impacts are indoor air quality, sound levels and possible over-illumination.

With respect to indoor air quality, workers can be exposed to fine particulate matter, carbon monoxide and certain heavy metals.

Although the county was still below the " pass " threshold, the report demonstrated substantial improvement compared to previous decades on every measure of air quality.

The Allegheny County Health Department also notes this improvement in air quality.

This ranking was disputed by the Allegheny County Health Department, since data from only one of Pittsburgh's 20 air quality monitors was considered by the ALA, without any context or averaging.

Thus, radon is considered a significant contaminant that affects indoor air quality worldwide.

By the late 1950s, as missiles developed both in quality and number, the ability for the US air fleet to penetrate Soviet airspace was increasingly at risk.

In the past, Taipei suffered from extensive vehicle and factory air pollution, but with mandatory use of unleaded petrol and the establishment of the Environmental Protection Agency, the air quality of Taiwan has improved dramatically.

Bare uncoated semiconductors such as silicon exhibit a very high refractive index relative to open air, which prevents passage of photons at sharp angles relative to the air-contacting surface of the semiconductor.

The refractive index of silicon is 3. 96 ( 590 nm ), while air is 1. 0002926.

By implementing a refractive index correction such as this, an approximate realization of the metre can be implemented in air, for example, using the formulation of the metre as wavelengths of helium-neon laser light in vacuum, and converting the wavelengths in a vacuum to wavelengths in air.

Of course, air is only one possible medium to use in a realization of the metre, and any partial vacuum can be used, or some inert atmosphere like helium gas, provided the appropriate corrections for refractive index are implemented.

This effect is what is responsible for mirages seen on hot days where the changing index of refraction of the air causes the light rays to bend creating the appearance of specular reflections in the distance ( as if on the surface of a pool of water ).

The liquid used is typically ultra-pure, deionised water, which provides for a refractive index above that of the usual air gap between the lens and the wafer surface.

The radar beam would follow a linear path in vacuum, but it really follows a somewhat curved path in the atmosphere because of the variation of the refractive index of air, that is called the radar horizon.

Glass has a higher refractive index than air.

When a beam of white light passes from air into a material having an index of refraction that varies with frequency, a phenomenon known as dispersion occurs, in which different coloured components of the white light are refracted at different angles, i. e., they bend by different amounts at the interface, so that they become separated.

These are caused by the change of the refractive index of air with temperature.

If for example, visible light were traveling through acrylic glass ( with an index of refraction of 1. 50 ) into air ( with an index of refraction of 1. 00 ), the calculation would give the critical angle for light from acrylic into air, which is

( In air or water light travels more slowly ; see index of refraction )

In fiber optics, a cladding mode is a mode that is confined to the cladding of an optical fiber by virtue of the fact that the cladding has a higher refractive index than the surrounding medium, which is either air or the primary polymer overcoat.

Due to the different refractive index of water and air, refraction and reflection occur on the surfaces of raindrops, leading to rainbow formation.

where n is the index of refraction of the medium in which the lens is working ( 1. 0 for air, 1. 33 for pure water, and up to 1. 56 for oils ; see also list of refractive indices ), and θ is the half-angle of the maximum cone of light that can enter or exit the lens.

where d < sub > 1 </ sub > and d < sub > 2 </ sub > are the distances of the ray passing through medium 1 or 2, n < sub > 1 </ sub > is greater refractive index ( e. g., glass ) and n < sub > 2 </ sub > is the smaller refractive index ( e. g., air ).

Fresnel reflection coefficients for a boundary surface between air and a variable material in dependence of the complex refractive index and the angle of incidence

The theoretical maximum aperture of a lens made of glass ( which has an index of refraction equal to 1. 5 ) and surrounded by air is f / 0. 5, but if a lens were made with other material, e. g. diamond ( index of refraction 2. 417 ) then the theoretical maximum f-number can be lower than 0. 5.

The military press censor at SHAEF made a mistake and allowed the Cowan cable to go out starting with " Allied air bosses have made the long awaited decision to adopt deliberate terror bombing of great German population centres | date = September / October 1996 | url = http :// www. legionmagazine. com / en / index. php / 1996 / 09 / the-bomber-command-offensive / | title = The Bomber Command Offensive | publisher = originally published in the Legion Magazine