Open Type Oxygen Apparatus

Use of the Haloxair apparatus with an oxygen concentrator.

Oxygen fail-safe device for an anaesthetic apparatus.

There are circumstances when the oxygen supply to an anaesthetic apparatus can fail. If this is not noticed immediately, the patient becomes anoxic. Many of the oxygen failure warning devices available at the present time only give a visual or audible signal of the failure and they rely on a second gas supply (usually nitrous oxide) and/or batteries for their operation (Falkner Hill, 1956; Hosp...

Oxygen Abundance of Open Cluster Dwarfs

We present oxygen abundances of dwarfs in the young open cluster IC 4665 deduced from the O I λ7774 triplet lines and of dwarfs in the open cluster Pleiades derived from the [O I] λ6300 forbidden line. Stellar parameters and oxygen abundances were derived using the spectroscopic synthesis tool SME (Spectroscopy Made Easy). We find a dramatic increase in the upper boundary of the O I triplet abu...

Reliable tree-type passive optical networks with self-restorable apparatus.

We propose and investigate a simply self-restored tree-type time-division- multiplexed passive optical network (TDM-PON) with duplex fiber system against the fiber failure. The new proposed optical line terminal (OLT), optical network unit (ONU), and remote node (RN) can be used to prevent and protect the occurrence of fiber failure in the self-protected tree-type PON. The protection and restor...

Functional Activation of the Flagellar Type III Secretion Export Apparatus

Flagella are assembled sequentially from the inside-out with morphogenetic checkpoints that enforce the temporal order of subunit addition. Here we show that flagellar basal bodies fail to proceed to hook assembly at high frequency in the absence of the monotopic protein SwrB of Bacillus subtilis. Genetic suppressor analysis indicates that SwrB activates the flagellar type III secretion export ...