Technological Features

Zhadkevich, A. M. (2004) History of origination, technological features and technical capabilities of the first methods of soldering and brazing, Welding J. 11, 39-44. 

It should be noted that the method used for manufacturing diallylsilazanes is accessible (easy of access) and has some of noteworthy positive technological features for a practical viewpoint [6] ... 

Compared to the continuous annular chromatography systems sold by Isopro International and used throughout the ORNL studies, the P-CAC units developed by Prior Separation Technology feature several design modifications which will be presented hereafter. As can be seen from Fig. 3, the P-CAC system consist of three major parts the P-CAC head, the annular column, and the drive including the control panel. Figure 3 represents a schema of the laboratory sized P-CAC used as a Research and Development tool. 

Both economic decline and military technology feature in Correlli Barnett s four-volume account of the collapse ofBritish power between the First World War and the Suez crisis of 1956. Barnett used a concept of total strategy which encompassed all factors that he believed to be relevant to a nation s ability to preserve or extend its power education, literature, religion and national myths, for example, as well as armed forces and economic and technological resources. His work may... 

Goals, technology and results of full-scale applications on some types of waste waters are discussed in more detail in the following sections. An overview of technological features, operating parameters and treatment costs of full-scale plants for waste water ozonation is given in Table 3-3. 

Table 3-3 Overview of technological features, operating parameters and treatment costs of full-scale plants for waste water ozonation. 

One goal of RESS/CSS, the anti-solvent processes such GAS, and the PGSS process, is to obtain submicron- or micron-sized particles. Technological features of the various high-pressure micronization processes are summarised and compared in Table 9.8-4 [58]. 

Technological features of RESS, GASR and PGSS process... 

Molding plants are universal and can be used for processing a wide range of materials, including polyamides, polyurethanes, epoxy resins, and other RIM-formulations. To give some idea of the technical capabilities of RIM-machines main technological features of a Krauss-Maffei (Germany) unit, known as NBC-RIM-s/ar-40 machine, are listed below. 

The main technological features of the batch operation mode are ... 

Table 29 Technological features of the existing solution processes for the production of high cis- 1,4-BR ...

Abstract. The constructive and technological features of silicon electrodes of polymer electrolyte membrane fuel cell (PEMFC) are discussed. Electrodes are made with application of modem technologies of integrated circuits, and technologies of macroporous silicon. Also ways of realization of additional functionalities of electrodes to offered constructive - technological performance are considered. 

Application The technology produces benzene and xylenes from toluene and C9 streams. This technology features a proprietary zeolite catalyst and can accommodate varying ratios of feedstock, while maintaining high activity and selectivity. 

Description The Uhde (Edeleanu) technology features a two-stage reactor system of which the first reactor is operated in the recycle mode. With this method, a slight expansion of the catalyst bed is achieved that ensures very uniform concentration profiles in the reactor and, most important, avoids hot spot formation. Undesired side reactions, such as the formation of di-ethyl ether (DEE), are minimized. 

The recovery process is a vapor phase fixed-bed adsorption technology featuring desorption with ammonia. This process has paraffins recovery and product purity in the high 90% s. Ammonia is a very efficient desorbent. Since it is easily separated from the n-paraffins product, fractionation capital and energy requirements are substantially reduced. Furthermore, ammonia has the added advantage of protecting the adsorbents from coking. 

Technological features of nanoprofiling of silicon protected by a solid mask made of porous aluminum oxide are considered. It is shown that the method based on bombarding structures with accelerated neutral atoms (in particular, argon atoms) is efficient for etching through this mask. 

G. Ya. Krasnikov, Constructive and Technological Features of Submicron MOSFETs. Pt 1. (Techno sphere, Moscow, 2002) - in Russian. 

This situation does not apply to the method of fractionation based on the use of aqueous salt solutions, as this process has been in actual operation " for several years and the resulting products are commercially avail-able consequently, a more detailed description of this process is possible. The experimental results and the fundamentals of the mechanisms involved in the salt method have been treated at length in Section IV its technological features will now be mentioned briefly. 

Why might you need to know the density of a gas Consider what requirements are necessary to fight a fire. One way to put out a fire is to remove its oxygen source by covering it with another gas that will neither bum nor support combustion. This gas must have a greater density than oxygen so that it will fall to the level of the fire. You can observe applications of density when you do the minlLAB later in this section and read the Chemistry and Technology feature. 

Changes in concentration, volume, and temperature make a difference in the amount of product formed in a reaction. Can a catalyst also affect product concentration A catalyst speeds up a reaction, but it does so equally in both directions. Therefore, a catalyzed reaction reaches equilibrium more quickly, but with no change in the amount of product formed. Read the Chemistry and Technology feature at the end of this chapter to learn how Le Chatelier s principle is applied to an important industrial process. 

One potential application for fuel cells is as an alternative power source for automobiles. However, as the Chemistry and Technology feature at the end of this chapter explains, scientists must resolve some fundamental challenges before fuel cells power the cars we drive. 

Fig. 1 Buried contact solar cell structure, an important wafer-based commercial silicon cell technology. Features include surface texturing for light trapping, diffusions front and rear and the front current grid buried in laser grooves. (Courtesy of UNSW Centre for Photovoltaic Engineering Image Library.)...

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