Bushing process

Continuous glassy metal ribbons can be formed with high quench rates from their inviscid melts by a rapid solidification process [60] that is akin to a generic bushing process (Figure 3, top left), except that the extruded ribbon must be rapidly cooled on the surface of a cold quench wheel. Continuous aluminate glass fibers and metal wires [10-12] and continuous amorphous YAG fibers [73] can be melt spun from inviscid melts by increasing the jet lifetime... 

Oxynitride fibers are formed by an adaptation of the conventional bushing process. Since nitrides would corrode precious metals in an oxidative environment, the bushings with up to 200 tips are therefore made from boron nitride-coated carbon or from molybdenum. The melts are formed under nitrogen at 1600-1750 °C and refined at lower temperature. Fibers with diameters ranging from 12 to 20 pm are continuously drawn from the melt 200°C below the melt temperature, and mechanically wound at 1000-2000 m/min [24]. 

Hannart, B. and Hoplinger, E.J., 1998. Laminar flow in a rectangular diffuser near Hele-Sliaw conditions - a two dinien.sioiial numerical simulation. In Bush, A. W., Lewis, B. A. and Warren, M.D. (eds), Flow Modelling in Industrial Processes, cli. 9, Ellis Horwood, Chichester, pp. 110-118. 

Most P/M parts weigh <2.27 kg (5 lbs), although parts weighing as much as 15.89 kg can be fabricated in conventional P/M equipment. Many early P/M parts such as bushings and bearings were very simple shapes, in contrast to the complex contours and multiple levels often produced economically in the 1990s. The P/M process is not shape-sensitive and normally does not requke draft. Parts such as cams, gears, sprockets, and levers are economically produced. 

J. R. Bush, "Electric Infrared Process Heating State-of-the-Art Assessment," Report prepared for the Electric Power Research Institute, Palo Alto,... 

W. V. Bush, K. R. Loos, and P. F. Russell, "Environmental Characteri2ation of the Shell Coal Gasification Process. I. Gaseous Effluent Streams," Fifteenth BiennialEow-Rank Fuels Symposium, St. Paul, Minn., May 22—25,1989. 

D. C. Baker, W. V. Bush, and K. R. Loos, "Determination of the Level of Ha2ardous Air Pollutants and Other Trace Constituents iu the Syugas from the Shell Coal Gasificatiou Process," Conference on Managing JJa yardousNir Pollutants—State of the Art, Washiugtou, D.C., Nov. 4—6,1991. 

Throttle bushings (Fig. 10-117) are commonly used with single internal or external seals when sohds are present in the fluid and the inflow of a flushing fluid is not objectionable. These close-clearance bushings are intended to serve as flow restric tions through which the maintenance of a small inward flow of flushing fluid prevents the entrance of a process fluid into the stuffing box. 

The full-prepolymer, quasi-prepolymer, and one-shot techniques may appear to be quite similar, but they each have important bearing on equipment requirements and physical properties. The full-prepolymer method, for example, is die process of choice for making high-performance cast elastomers with superb dynamic properties, such as industrial bumpers and bushings. Quasi-prepolymers are used in less demanding applications like shoe soles, adhesives, and spray elastomers. One-shots make up the rest, including most foams and elastomers. 

T. Werpy, J. Frye, J. Holladay, R. Bush, in Biorefineries-Industrial Processes and Products (B. Kamm, P. R. Gruber,... 

Hank C. Jenkins-Smith is professor of public policy at the George H.W. Bush School of Government and Public Service at Texas A M University in College Station. He holds the Joe R. and Teresa Lozano Long Chair of Business and Government at the Bush School. He was previously professor of political science and director of the Institute for Public Policy at the University of New Mexico. Professor Jenkins-Smith s areas of research include science and technology policy, environmental policy, public perceptions of environmental and technical risks, and national security policy. Professor Jenkins-Smith has written books on the public policy process and policy analysis and has served on a number of committees for the National Research Council. 

Potente, H. and Schoppner, V., A Throughput Model for Grooved Bush Extruders, Int. Polym. Process., 10, 289 (1995)... 

MacKown CT, Douglas B, Djordjevic MV, Bush LP (1988) Tobacco-specific nitrosamines formation during processing of midvein and lamina fines. J Agric Food Chem 36 1031-1035 McNeill A, Bedi R, Islam S, AUchatib MN, West R (2006) Ixvels of toxins in oral tobacco products in the UK. Tob Control 15 64-67... 

Repeat this process in years two and three until you have formed a bush with 8-10 main branches, each with a "leading shoot"—the one at the tip that will make the whole branch longer—and, lower down, shortened, stubby branches. If the center of the bush is crowded with shoots growing inward across the middle of the bush, prune some of these out. 

This paper is concerned with the potential for production of liquid fuels from biomass in Canada. To this end, the availability and cost of wood wastes, surplus roundwood, bush residues, energy plantation trees, and municipal solid wastes (mostly cellulosic) are assessed and promising thermal, chemical and biochemical conversion processes reviewed. 

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