Methods for fixing

There are two main types of steamers used commercially. Tube steamers allow for the whole roll of cloth to be loaded inside the chamber. Many can produce steam generated at either atmospheric or increased pressure. Pressurized steam, along with 

Disperse dyes can also be applied indirectly as a transfer from paper that has been printed with the pattern using an ink jet printer charged with the disperse dye. A heat press, available in various flatbed or roll-to-roll formats, is aptly named, applying both heat and pressure to a substrate. This method fixes or cures the ink as part of the 

After fixing, most fabrics will then be washed in accordance with the relevant dyesmff 

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Sometimes, knowing only the magnitude of the equilibrium constant, it is possible to decide on the feasibility of a reaction. Consider, for example, a possible method for fixing atmospheric nitrogen—converting it to a compound—by reaction with oxygen ... 

A common method for fixing the oxygen pressure at such low values in a system is to use a gas mixture comprising CO and C02 or H2 and H20. A C0-C02 mixture results in the reaction... 

Santos RPD, MariathDeAraujoJE. A simple method for fixing dehydrating pollen tubes cultivated in vitro for transmission electron microscopy. Histochemistry 1997 76 315-319. 

What is the initial direction of search determined by Newton s method for fix) = x2 + 2 2 What is the step length How many steps are needed to minimize fix) analytically ... 

In trying to solve a typical problem like (8) by the elimination method for fixed i2 (or ij), exactly 0(N N2) arithmetic operations are needed in giving a solution at all the nodes of the grid. Their amount is proportional to the total number of the grid nodes in the plane. The main idea behind economical methods lies in successive solution of one-dimensional problems of the type (8) along rows and along columns in passing from one layer to another. 

The time-honored method for fixing paper, established by Kodak, is the two-bath method. In the two-bath method, two fresh fixing baths are placed side by side. Paper is immersed in the first bath for a predetermined time, drained, and moved to the second bath for the same amount of time. If the first bath is fresh, the paper is completely fixed and only trace amounts of fixing by-products are carried into the second bath. There the action of fresh fixer breaks down any residual by-products, which are easily removed during washing. As the first fixer begins to age, increasing amounts of by-product are carried over to the second bath and there eliminated. 

A new approach was proposed for making effective helmets which could replace the former British army steel helmet. Essentially the new helmet used modified phenolic resins reinforced with nylon, and the crown cap inside was thermoformed from polyethylene. Formerly the crown cap was attached to the steel by rivets—not an appropriate method for fixing polyethylene to reinforced plastics. Instead a method was developed with a hot-melt adhesive based on ethylene-vinyl acetate copolymers cast as film on release paper. For assembly, the cast film is cut in advance to match the intricate shape required and activated by heat to bond under light pressure subsequently, a further heat activation is employed to fix the crown cap in place (Figure 52 illustrates this). 

One method for fixing the various temperatures is to specify the overhead condenser temperatures in the two columns. In these calculations, it was decided to use cooling water in the two condensers, thereby setting the reflux temperature at 100°F for both columns. The condenser temperature would normally be set by the availability of an adequate heat sink, if other than water. For binary distillation, the reflux temperature was also set at 100°F. 

Certain bacteria have developed methods for fixing nitrogen. These bacteria live on the root hairs of plants. They take nittogen out of air dissolved in the ground and convert it to compounds, such as nitrates. Those nitrates are used to make protein molecules, compounds vital to the building and growth of cells. 

J. Kjaer, A General Calculation Method for Fixed Bed Catalytic Reactors on a Digital Computer. Copenhagen Akademisk Forlag, 1963. 

Fixation of metals as their insoluble sulfides is clearly evident for Fe and is considered the likely method for fixing the other trace metals, except for Mn. The blackened sediment beneath the thin-surface-oxidized layer, the lower SO4/CI ratio than that of marine water, and the presence of pyrite framboids (FeS2> show that sulfate is actively reduced to sulfide in the salt marsh. No discrete metal sulfides, besides pyrite framboids, were detected by microprobe examination however, the simultaneous appearance of S04 and trace metals in the interstitial water of cores stored in air suggests that other trace metals may be present as finely dispersed insoluble sulfides. 

D. Methods for Fixing Tissues or Cells onto Slides or Cover Slips... 

The materials used for the incorporation of diamond fall in two categories, corresponding to two different methods for fixing the diamond to the matrix [47]. In one case the diamond is retained only mechanically, while in the second case a sort of chemical fixing is obtained through formation of a covalent bond between the diamond and some component of the matrix. Metal carbides are generally used in order to form covalent bonds with diamonds. A metal is also sometimes... 

Pyrrole undergoes oxidative polymerization from solutions at a metallic anode to form a dark-colored skin that adheres firmly to the metal surface. This simple electropolymerization step, when applied to pyrrole monomers with covalently attached redox centers, offers a method for fixing these redox centers to an electrode. This area of research aims at the construction of electrodes on which a catalytic... 

To overcome some of the problems associated with the variable frequency control of resonant converters, they are operated at a fixed frequency (Kit Sum, 1988 Bhat, 1988). A number of configurations and control methods for fixed-frequency operation are available in the literature (Bhat (1988) gives a list of papers). One of the most popular methods of control is the phase-shift control (also called clamped mode or PWM operation) method. Figure 10.89(b) illustrates the clamped mode fixed-frequency operation of the modified SRC shown in Fig. 10.89(a). The load power control is achieved by changing the phase-shift angle

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Sun, L.M., and Meunier, F., An improved finite difference method for fixed-bed multicomponent sorption,... 

A practical method for fixing the elementary cell t5q)e will be presented... 

The Haber synthesis of ammonia is the major industrial method for fixing nitrogen, but it requires high temperatures and pressures and is, therefore, expensive. 

Alternative Method for Fixed-Volume Vessels— The method outlined in 9.4.2.1 can be utilized with the exception of steam being substituted for the solvent. The steam should be pushed by an inert gas such as nitrogen. 

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