Open ends first

A glass bell is now inserted into the loaded melting-point capiUaiy, open end first (down), and allowed to fall (centrifuged if necessary) to the bottom. The assembled system (Fig. Llh) is then inserted onto the stage of aThomas-Hoover Uni-Melt Capillary Melting Point Apparatus (Fig. 4.3) or similar system (such as a Mel-Temp). 

Probably the largest compound vessels built were two triple-wall vessels, each having a bore diameter of 782 mm and a length of 3048 mm designed for a pressure of 207 MPa (30,000 psi). These vessels were used by Union Carbide Co. for isostatic compaction unfortunately the first failed at the root of the internal thread of the outer component which was required to withstand the end load (40). A disadvantage of compound shrinkage is that, unless the vessel is sealed under open-end conditions, the end load on the closures has to be resisted by one of the components, which means that the axial stress in that component is high. 

It must now be tested to see that it is air-tight. For this purpose, close the open end of the potash apparatus with a tight stopper and turn on the full pressure from either gasholder. After the first few bubbles of air have passed through the bulbs of the potash apparatus no further movement of bubbles should appear in any art of the apparatus. If it withstands this test, the combustion may proceed. Release the pressure by closing the tap of the gas-holder, screwing i p the... 

A test procedure which has proved very useful was first described by Hatfield. The samples are cylinders 32 x 12-5 mm in diameter with a standard abraded finish which are supported on open-ended refractory boats in a tubular furnace. In the original test the atmosphere, which was produced by burning towns gas with a 50% excess of air, was passed over the specimens at a standard velocity after first preheating to test temperature over refractory packing in a separate furnace chamber. More latterly, natural gas has been used with suitable modification of air gas ratio to give... 

F(r, ffl ) represents a normalized square of the acoustic pressure of mode n at the position of the flame front. It is plotted in Figure 5.1.12 for the first two acoustic modes of the tube. This function goes to zero at the open end of the tube, which is a pressure node. For the fundamental mode of the tube, the gain remains small until the flame has traveled at least halfway down the tube. 

The first of the open-ended problems to be considered is nuclear weapons proliferation, in the context of its relation to commercial nuclear power. There is a connection, because a country with an active nuclear power program has a head start, in terms of equipment and technically trained people, should it decide to embark upon a weapons program. This has been a live issue in the case of han.5... 

To activate the delay, first fasten the container securely in an upright position. Make a hole in the side of the container near the bottom and insert the open end of a nonelectric blasting cap. Be sure that some of the sugar-chlorate mix gets into the open end of the cap. The business end of the blasting cap can be inserted directly into the explosive charge or connected to the charge with primacord. To start the delay, carefully place a spoonful of concentrated acid in the pocket of the membrane—... 

Here we go again. We seem to come up with the same themes. There are two reasons for that first, there is so much to say and second, because the format of these chapters, which is an open-ended discussion of all manner of things chemometric, give us the opportunity to expand on a topic to any extent we consider necessary and desirable, sometimes after having discussed it in lesser detail previously, or not having discussed a particular aspect. 

To study the role of lysine residues in susceptibility to formalin fixation, the amino acid composition of immunoreactive peptides (to various monoclonal antibodies) was studied. Each peptide was evaluated to determine if immu-noreactivity was lost after formalin fixation. Formalin sensitivity was correlated with the peptides amino acid composition. The first step in the method is biopanning from a peptide combinatorial library with a monoclonal antibody. The peptides that bind to the antibody were tested for their sensitivity to formalin fixation. Some peptides remain immunoreactive whereas others do not. The peptides were then sequenced to look for differences between those that were sensitive to formaldehyde versus those that were not. The goal was to find whether there is a particular amino acid that is present in formalin-sensitive epitopes but absent in formalin-resistant epitopes, or vice versa. An advantage of this approach is that it is open-ended, without excluding any amino acids. 

For example, the first and second correlations [Eqs. (40) and (41)] were established using a continuous flow of air/oxygen in an open-end gas set-up which resulted in an important contribution of the superficial gas velocity (VSG) to the... 

Accdg to his theory, combustion initiated at open end of the pipe first takes place in the circumferential region of one spiral, and then the flame is propagated in the gas stream, forming a sort of an elongated cone between the reference surfaces AA and BB, as shown in Fig B. The process of combustion here is essentially nonuniform. The depth of the reaction zone is detd directly from kinetics (as in the case of one-dimensional propagation... 

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