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Jacks, fixed

The reason is that alcohol is an addictive drug for some individuals. Some people are more prone to this, and there is evidence of a genetic factor as it seems to occur in families. It has been shown that alcohol can produce morphine-like chemicals in the brain. Some people become dependent on alcohol and experience withdrawal symptoms when they stop drinking. They suffer craving, headaches, trembling, insomnia, and anxiety, and become desperate for another drink, a fix , just like a cocaine or heroin addict. (Anyone who has seen the film Days of Wine and Roses, with Jack Lemmon and Lee Remick, wiU be familiar with the symptoms and effects.)... [Pg.206]

The experimental device constructed to orient uniformly thick samples in simple shear is schematically represented in Fig. 3. It is basically a sliding-plate rheometer, the polymer sample being sheared between two temperature-controlled parallel plates. The upper plate is fixed whereas the lower plate can be displaced both horizontally and vertically with two pneumatic jacks. [Pg.69]

Figure 26. This photograph shows a general view of the reference cell assembly including the glass flange tube combined with the empty closed cell by means of the cap nut. The assembly is held in the vertical position by means of a clamp of a stand. It is possible to slide the stand horizontally on the laboratory desk. On the other hand, a laboratory jack, at the center of the upper plate of which a pedestal is stuck, is fixed on the desk. The position of the stand is then adjusted horizontally in order that the assembly may be aligned vertically with the pedestal. A pack of cigarettes is put on the laboratory jack, and by the side of the assembly, to show the relative size of the closed cell. The cell measures 1.4 cm in outside diameter and about 3 cm in length in other words, it is about half the size of a thumb. Figure 26. This photograph shows a general view of the reference cell assembly including the glass flange tube combined with the empty closed cell by means of the cap nut. The assembly is held in the vertical position by means of a clamp of a stand. It is possible to slide the stand horizontally on the laboratory desk. On the other hand, a laboratory jack, at the center of the upper plate of which a pedestal is stuck, is fixed on the desk. The position of the stand is then adjusted horizontally in order that the assembly may be aligned vertically with the pedestal. A pack of cigarettes is put on the laboratory jack, and by the side of the assembly, to show the relative size of the closed cell. The cell measures 1.4 cm in outside diameter and about 3 cm in length in other words, it is about half the size of a thumb.
The reference cell thus prepared is then set on the pedestal which is stuck at the center of the upper plate of the laboratory jack, which in turn is fixed on the laboratory desk. The position of the stand, by means of which the stem including the glass vent tube is held in the vertical position, is next adjusted by... [Pg.229]

The displacements of atoms may take several forms (Figure 13.2). These have been described by Jack Dunitz, Verner Schomaker, and Kenneth N. Trueblood as follows The perfectly ordered crystal would have every atom firmly fixed to its own perfectly defined site in each unit cell for the entire period of observation. There are, however, various types of disorder from unit cell to unit cell. If the atom jumps to a different site, that is one kind of disorder [a mixture of static and dynamic disorder ] if it moves to and fro, that is another kind of disorder [ dynamic disorder] if it is forever in one site in a certain unit cell and in a different site in another cell, that is still another kind [static disorder]. Each of these types of vibrations, displacements, and disorder has somewhat similar effects on the intensities of Bragg reflections the effect they have in common is that they reduce these intensities by an amount that increases with increasing scattering angle, 26, as shown in Figure 13.1. [Pg.525]

Theory predicts the same effect for any octahedrally co-ordinated crystal structure or co-ordination compound in which the central ion has four unpaired d electrons. This has been confirmed for CrFo, in which the Cr + is isoelectronic with the Mn + ion (Jack and Maitland, 1957). The Cr-F distance is 2.43 A along the z axis, but only 2.01 and 1.98 A along the x and y axes. Clearly it is not possible always to assume spherically symmetrical ions of fixed radii, since the interionic distances depend on the geometry of the occupied orbitals and the direction of approach of the surrounding groups. [Pg.136]

Several devices have been developed for the irtrsitu tensile testing of fibres and filaments. To combat the poor sensitivity of the spectrometers, it is usual to strain several fibres simultaneously. Verma and Peterlin looped nylon 6 fibres between two holders, so that the fibres passed through the cavity, with the holders outside the active zone. The holders formed sealed ends to suprasfl quartz tube which could be evacuated to < 10 mm Hg. One holder was fixed, while the other holder was moved by a hand operated screw jack. No provision was made for simultaneously measuring load/deformation curves, which had to be obtained from conventional tensile tests on other fibres. [Pg.25]

The upper half-sphere is fixed, the lower half-sphere is movable, using a pneumatic jack, to allow quick opening of the vessel for frequent cleaning. Combustion in chlorine produces soot deposits on the walls, which may promote or prevent ignition of subsequent mixtures. Cleaning after each positive test is necessary to obtain reliable flammable limits in chlorine. [Pg.438]

To compare two different FROC curves is difficult because the upper limit to the number of false detections per image is undefined. This means that there is no way to define the area under an FROC curve, like it is done for ROC curves. Currently, the most common method for comparing FROC curves is to use jack-knife FROC (JAFROC) (Chakraborty and Berbaum 2004). Another option is to compare the sensitivity values at a fixed false detection rate or to compare the false detection rates at a fixed sensitivity. This,however,has less statistical significance than comparing the whole curve using JAFROC. Free software for JAFROC is available from Dev Chakraborty at http //www.devchakraborty.com. [Pg.94]

There are two basic types of stationary seabed systems (1) fixed and (2) portable systems as shown in Figure 4.7. The systems shown in the figure have penetration capability ranging from about 10 m in very hard soils to more than 50 m in soft soils. Certain types of stationary systems, usually having a penetration capability of less than 15 m, do not have tensioned cables as shown in Figure 4.7, particularly the cable that supports the upper end of the test rods. In such instances, a column supports the test rods (Beard and Lee, 1982). The seabed jacking machine shown in the figure traditionally provides discontinuous penetration and retraction of the cone, piezocone, or vane sensors that may be attached to the lower end of the test rods. Continuous penetration and retraction machines have recently... [Pg.95]

Support the lower arm by jack use the inner hexagon spanner to fix the ball pin and tighten the self-locking nut to specified torque. Tightening force 63 + 5N m... [Pg.209]

The test is carried out on compacted material with certain moisture, using a steel circular plate and a load application system. The steel plate can be of various diameters, but the plate normally used has a 762 mm diameter. For increasing plate s rigidity, two additional circular plates of smaller diameter (approximately 650 and 550 mm) are placed on top of it. Load application is usually carried out with hydraulic jack assembly, which is properly adjusted to a fixed reaction beam of a load vehicle. Plate bearing test arrangement is shown in Figure 1.9. [Pg.32]

Fixed and auxiliary plant, Are all jack-up support leg interlocks/locking mechanisms operating... [Pg.133]


See other pages where Jacks, fixed is mentioned: [Pg.215]    [Pg.145]    [Pg.911]    [Pg.913]    [Pg.4]    [Pg.745]    [Pg.93]    [Pg.432]    [Pg.227]    [Pg.417]    [Pg.205]    [Pg.16]    [Pg.69]    [Pg.165]    [Pg.296]    [Pg.347]    [Pg.523]    [Pg.314]    [Pg.7]    [Pg.106]    [Pg.498]    [Pg.172]    [Pg.164]    [Pg.98]    [Pg.134]    [Pg.148]    [Pg.149]    [Pg.237]    [Pg.344]    [Pg.137]    [Pg.229]   
See also in sourсe #XX -- [ Pg.82 ]




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