The designations were given in segments between 1991 and 2003 and include the Lincoln Tunnel Approach and Helix as well as the toll booths and ventilation towers as well as the tunnels.

A common source of Legionella in commercial buildings is from poorly placed or maintained evaporative cooling towers, which often release water in an aerosol which may enter nearby ventilation intakes.

The northern ventilation towers for the new Blackwall tunnel.

Its distinctive ventilation towers ( right ) were designed in 1964 by Terry Farrell, then architect for the Greater London Council.

The third one, a complex of ventilation towers and a passenger lift at Tooks Court, was demolished in 2001.

Other visible evidence of the tunnel still exists, in the form of three imposing red brick towers, which act as ventilation shafts for the tunnel.

The lift shaft and two ventilation towers are constructed using brick.

The tunnel carries air conditioning services from an underground room, which is located beneath two ventilation towers in The Domain, by the side of the road behind Sydney Hospital.

Other authors have found small or inconsistent differences in concentrations but claim that exposure of cyclists is higher due to increased minute ventilation and is associated with minor biological changes .< ref > The significance of the associated health effect, if any, is unclear but probably much smaller than the health impacts associated with accidents and the health benefits derived from additional physical activity.

Visitors to the site in December 1954 reported being deeply shocked by the conditions and the constant screams from the cell-block still in use for convicts who had gone insane and which had only tiny ventilation slots at the tops of the walls under the roof.

Indoor ranges require good ventilation to remove pollutants such as powder smoke and lead dust from the air around the shooters.

This response does not control ventilation rate at normal pO < sub > 2 </ sub >, but below normal the activity of neurons innervating these receptors increases dramatically, so much so to override the signals from central chemoreceptors in the hypothalamus, increasing pO < sub > 2 </ sub > despite a falling pCO < sub > 2 </ sub >

This design requires external ventilation to prevent the in-chimney radiator from melting, being typically in metal.

Its symmetry is interrupted by a hole through which a ventilation shaft from the Blackwall Tunnel rises.

In July, 2002, fourteen Alaskans ate muktuk ( whale meat ) from a beached whale, and eight of them developed symptoms of botulism, two of them requiring mechanical ventilation.

Again, no solvents are needed beyond the soda ash solution, though a ventilation hood is needed due to acrylic particulates from the air brush spray.

However, the air cycle machine is very common on gas turbine-powered jet aircraft as cooling and ventilation units, because compressed air is readily available from the engines ' compressor sections.

However, flames may be maintained with any type of forced convection ( breeze ); or ( in high oxygen environments in " still " gas environments ) entirely from the minimal forced convection that occurs as heat-induced expansion ( not buoyancy ) of gases allows for ventilation of the flame, as waste gases move outward and cool, and fresh high-oxygen gas moves in to take up the low pressure zones created when flame-exhaust water condenses.

The miners had constructed a ventilation shaft located well behind Union lines, and connected it to the mine with canvas, which isolated the mine from outside air.

Without proper ventilation, carbon monoxide can be extremely dangerous and can vary from a small, limited amount to a lethal amount.

However, in humid climates much energy is required to remove excess moisture from ventilation air.

Energy recovery systems sometimes utilize heat recovery ventilation or energy recovery ventilation systems that employ heat exchangers or enthalpy wheels to recover sensible or latent heat from exhausted air.

* Providing proper ventilation to unconditioned spaces to protect a building from the effects of condensation.

A modern school classroom with natural ventilation by opening windows and exposed thermal mass from a solid concrete floor soffit to help control summertime temperatures

However this " regeneration " process is only effective if the building ventilation system is operated at night to carry away the heat from the slab.

To prevent exhaust fumes from entering the ventilation system, the platform is electric only and diesel trains are forbidden.

In frequently operated tunnels ( typical metro operation ) the extra heat from rubber tyres is a widespread problem, necessitating ventilation of the tunnels.

The black slate and white marble tiles were repaired, cleaned and replaced where necessary, whilst most of the age damage was to be found in the woodwork, which was suffering greatly from poor ventilation and having been laid directly on to earth, resulting in worm and wet rot.

One result of the disaster was the enactment in 1870 of a law regulating mining which required employment by the State of mine inspectors, the mapping of all mine works, the creation of two means of egress from every mine, provision for proper ventilation, reporting and investigation of all accidents and the establishment of rules of conduct for employees.

Over the top is a 3-5 metre high earth covering, from which protrude dozens of ventilation tubes.

Different reports said it came either through the specially created hole in the wall, that it was pumped through the theater's ventilation system, or that it emerged from beneath the stage.

* Providing a working platform from which tasks such as ventilation or overhaul can be executed.

Nevertheless, construction is still ongoing at the site as the tunnel still lacks a ventilation system and is not paved.

The orientation of a building, the utilization of local climate and site conditions, the emphasis on natural ventilation through design, fundamentally lessen operational costs and positively impact the environmental.

* Dr. Bach, a doctor experienced in use of noninvasive ventilation for patients with neuromuscular diseases ( note: site is written by a third-party ).

The bus station was designed to fit in a relatively small site between the station drum, the railway's ventilation openings, a high wall and the adjoining tower blocks.

It was never finished, and the Allies found when they captured the site that the ventilation shaft had not been fully excavated.

The orientation of a building, the utilization of local climate and site conditions, the emphasis on natural ventilation through design, fundamentally lessen operational costs and positively impact the environmental.

Cleaning operations using these agents should not be performed near the site of welding, and proper ventilation is necessary to protect the welder.

The extract duct above the roadway captured some of the smoke and when the false ceiling at the site of the fire collapsed, a hole formed between the road tunnel and the extract ventilation duct: this hole dramatically improved the capture of smoke at the main fire site, though it reduced smoke capture at the second fire site to practically nothing.

The site has modified the ventilation system to prevent future air pressure changes.

Relative contraindications include cases in which the site of insertion has known bullous disease ( e. g. emphysema ), use of positive end-expiratory pressure ( PEEP, see mechanical ventilation ) and only one functioning lung ( due to diminished reserve ).

MHA were appointed as the contractor's designer for the works on the British site ( designing temporary works, bored tunnel linings, cut-and-cover tunnels, earthworks, trackwork, terminals & sea defences ) and as designer for the ventilation, aerodynamics, smoke control and refrigeration systems in the entire tunnel.