About 50 rescuers are trying to free them from a ventilation shaft at Gleision Colliery near Cilybebyll, Pontardawe.
Authorities have been conferring in a nearby church and communicating with Dykes through a ventilation pipe to the underground bunker.
These blocks can be used to make a roof or a windbreak, which cuts windchill (and don't bury yourself, you'll need a ventilation hole).
It began in December 1967 when five secretaries at a ventilation and heating company volunteered to work an extra half hour each day without pay to do their bit for the flagging economy.
Another medic, the senior resident doctor who tried to revive the infant, said she appeared to be so "deeply unconscious" there was no need to sedate her before putting her on a ventilation machine to keep her breathing.
The silver cylinder at the top is actually a small power generating device that converts micro-vibrations into usable energy, so stick one of these on, say, a ventilation duct and you should just about get enough juice to power a calculator or even an LED.
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As it turned out, authorities' decision to rely on every tool at their disposal was a wise one: Dykes had planted an explosive device in a ventilation pipe he'd told negotiators to use to communicate with him on his property in the rural Alabama community of Midland City, and also placed another explosive device inside the bunker, the FBI said in a statement late Tuesday.
It is pitching a new ventilation system that would fill a mine with sensors, dampers and louvers along with variable speed fans that will send only the right amount of air to the mine tunnels.
Murphy says the original design plans were recently discovered, showing how the property was rigged with 200-kilowatt generators, massive air-intake tunnels and a custom ventilation system to be used in the face of disaster.
Standard green features in each home include LED lighting, recycled glass countertops, a high-efficiency water heater, water-conserving fixtures including dual-flush toilets, FSC-certified bamboo flooring, EnergyStar appliances, zero-VOC paints, finishes, and adhesives, a whole-house ventilation system, low-E windows, high levels of insulation, a fully recyclable, heat-deflecting cool roof, exterior wood siding and decking made from FSC-certified cedar, and much more.
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Heating, ventilation and a very robust multi-mode massage function complement this lordly perch.
The men had been detained in a room with no ventilation, even though the average temperature in the city at this time of the year is higher than 38C, it added.
The findings may help to explain a previously identified association between longer periods of ventilation and cerebral palsy, cognitive disorders and bronchopulmonary dysplasia, a lung disorder, in extremely preterm babies, they said.
He also plans to transform the 28m-long ventilation shaft into a subterranean climbing wall.
The FDA also said the plant had a leaky roof, poor ventilation and inadequate pest control.
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One example: In 2005 OnStar detected and fixed a problem in the electronic ventilation system in GM's 2006 full-size SUVs.
During the six-day standoff, officials talked to Dykes and delivered medication and toys to the boy through a 4in (10cm) ventilation pipe.
During the six-day standoff, negotiators talked to Dykes and delivered medication and toys to the boy through a 4in (10cm) ventilation pipe.
Negotiations are being carried out between the suspect and authorities through a 60-foot plastic ventilation pipe that leads from the bunker, authorities said.
Current HVAC systems get rid of stale, germ-ridden indoor air by cooling or heating fresh outdoor air and blowing it through ventilation ducts, a process that gobbles electricity.
"Passive renewable energy" measures, such as using natural ventilation to cool a building and spacing windows to maximize the sun's light, are other ways to slash a building's electric bill.
From the ventilation shafts underground to a bird's eye view from the antennae, it's the bits the public never see.
In his brilliant 1991 design for Frankfurt's Commerzbank, the tallest office building in Europe, he brought off the seemingly impossible feat of building a supertower that could use natural ventilation (as against fuel-gobbling air conditioning) during 60% of the year.
Following his arrest in Oaxaca last year, Habacuc Cruz Cruz, a union organiser in the state, says that he was severely beaten and kept for three to eight days at a time in a tiny cell without light or ventilation, which measured just one square metre.
Negotiators have been talking to the man through a 4in-wide (10cm) ventilation pipe.
But his old friends and employees sometimes tell the story of what happened when a crate arrived at his home with ventilation holes punched into it.
The same team assessed the entire museum (150, 000 square meters of lighting, heating, electrical and ventilation systems) and came up with a seven-year plan detailing when the equipment would have to be replaced and how much it would cost annually.
Mr Loh said in a statement that the hospital had put her on "maximum artificial ventilation support, optimal antibiotic doses as well as stimulants which maximise her body's capability to fight infections".
Even late at night, residents can be kept awake by a nearby restaurant's loud pet goose, supermarket or restaurants' ventilation fans and freezers, temples or businesses setting off firecrackers to seek divine protection at ungodly but auspicious hours.
Smoke travels upwards, and if smokers are confined to the top level and adequate ventilation is in place (be it an open window or a small fan), then there can be no cause for concern to those non-smokers who sit downstairs.
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