Vault hold

Two of the most common ways of contacting the cranium during diagnosis and treatment are the vault hold and the fronto-occipital hold. Each approach will give the operator a slightly different view of the system. The choice of which approach is most effective is one thai the operator determines for each clinical siiuation. 

Apparently a vault had been constructed around the superstructure of the furnace. It was 4.5 x 6 m in cross section and 4 m high. It was constructed of 20-cm-wide flange beams on 0.8 m (front) and 1 m (sides) centers faced on both sides with 10-mm steel plates and filled with dry sand. The explosion displaced the walls about 6 cm. The top of the vault which was supported by a 30-cm beam on top of a 20-cm beam was deflected about 8 cm. Steel doors mounted to slide in angle-iron tracks were blown off. A number of 1.9-cm bolts holding the door tracks were sheared cleanly. The furnace was driven down into the concrete floor and a penetration of some 10 cm was measured. 

While handling a fnmigant indoors or in any enclosed area, nse an air-supplying respirator. In enclosed areas such as greenhouses, ship holds, railcars, bins, vaults, and chambers, there may not be enough oxygen for yon to breathe. Cartridge and canister respirators will not protect yon in these sitnations. 

Despite proper choice of tank material and chemical conditions, continuous leak monitoring is required. Two safety features have to be provided to keep leak incidents under control. The tank has to be located in a vault that is able to hold the entire tank volume, and the tank has to be connected to an empty spare tank ready to receive the content of a leaking tank. 

Confined-space work can be especially hazardous. Examples of such spaces include ship holds, storage tanks, and underground vaults. 

The vault was made elliptical shape, with specially designed thermosyphons [12] instead of pins for proper holding of lining and later melt lining (Fig. 10, view A and Fig. 13). This design helps to create a self-holding dome from the lining. 

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