Reduction and Control

Systems approach borrowed from the optimization and control communities can be used to achieve various other tasks of interest in multiscale simulation. For example, Hurst and Wen (2005) have recently considered shear viscosity as a scalar input/output map from shear stress to shear strain rate, and estimated the viscosity from the frequency response of the system by performing short, non-equilibrium MD. Multiscale model reduction, along with optimal control and design strategies, offers substantial promise for engineering systems. Intensive work on this topic is therefore expected in the near future. 

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Dose-related reduction in size of seminiferous tubules and in percentage of damaged tubules. High-dose group experienced 24-58% reduction in spermatogenesis (and high death rate) low-dose group 11-21% reduction and controls 0.5-6.1% reduction (Balash etal. 1987)... 

An examination is made of the provisions of European Union directive 1999/13/CE covering the reduction and control of emissions of volatile organic compounds arising from the use of organic solvents. 

Initiate short courses and other means of disseminating expertise in reactivity hazard identification, reduction and control Develop and implement examples, self-assessment checklists and simplified tools Develop and implement effective means of communicating this information for use by small and medium enterprises... 

According to Gould (1969), the central theme in modal reduction and control is... 

Baldea, M. and Daoutidis, P. (2006). Model reduction and control of reactor-heat exchanger networks. J. Proc. Contr., 16, 265-274. 

Kumar, A. and Daoutidis, P. (2003). Nonlinear model reduction and control for high-purity distillation columns. Ind. Eng. Chem. Res., 42, 4495-4505. 

Vora, N.P. (2000). Nonlinear Model Reduction and Control of Multiple Time Scale Chemical Processes Chemical Reaction Systems and Reactive Distillation Columns. PhD thesis, University of Minnesota - Twin Cities. 

Our analysis of PCDD/F formation mechanisms and results from parametric trials on bench, pilot and full scale plant tends to reinforce rather than supplant existing strategies for reduction and control of PCDD/F emissions. Mechanistic considerations supply an underlying rationale for the requirements of Good Combustion Practice, many components of which were formulated before the reaction pathways were elucidated in laboratory experiments. The key to the... 

Clean Air Act of 1970 The Clean Air Act of 1970 was founded on the concept of attaining National Ambient Air Quality Standards (NAAQS). Data were accumulated and analyzed to establish the quality of the air, identify sources of pollution, determine how pollutants disperse and interact in the ambient air, and define reductions and controls necessary to achieve air-quality objectives. 

MOTIVATIONS AND METHODS FOR PARTICLE SIZE REDUCTION AND CONTROL... 

This technology can produce narrow particle size distributions with a controlled surface area and is finding utilization for final bulk drug substances. Control of particle size has the added benefit of eliminating the need for milling for particle size reduction and control. In addition, scale-up can be achieved to production scale by operation at the same local conditions in the same (or only approximately two times larger) size jets that are mn for longer times. See Examples 9-5 and 9-6. 

Saruhan, B., Stranzenbach, M. and Mondragon Rodriguez, G.C. (2007) An integrated solution for N Ox-reduction and -control under lean-burn conditions. Materialwiss. Werhstojfftech., 38 (9), 725-33. 

Dr. Jim Kittrell and J. W. Eldridge at KSE, Inc. (Amherst, MA) and Professor W. C. Conner (University of Massachusetts) report on deactivation of stationary source emission control catalysts. In addition to a general discussion of deactivation and ways to characterize it, they focus on the important applications of NO reduction and control of volatile organic compounds, both of which are receiving increased regulatory attention. 

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