Upgrading systems, combination

Conveying characteristics also will provide useful information when an existing plant needs to be upgraded to achieve say, a higher conveying rate of solids. For example, it will be possible to determine whether the system and the material will be able to cope with the increased pressure and/or air flow requirements (i.e., whether the combination of pipe size and blower/compressor rating will be sufficient). 

The choice of the appropriate catalyst system will have an impact on the potential formation of the heavy polymers and coke. Cracking the high molecular weight precursors catalytically will significantly reduce the possibility of thermally degrading these components. The zeolite activity should be optimized in combination with an active matrix selective to upgrading the heavy feed components. 

Another technological breakthrough in optical hber technology, however, allows one to upgrade established 100 fs-class laser systems for broadband applications and even surpass the bandwidth of dedicated short-pulse Ti sapphire lasers. Key to this is the use of novel microstructured optical hbers, which are designed to exhibit extremely high optical nonlinearities. If nanojoule femtosecond laser pulses are launched into such a hber, the combination of different nonlinear optical processes leads to the creation of new frequency components. Therefore, the laser bandwidth can be increased dramatically by orders of magnitude. 

All procedural controls must be reviewed periodically in order to ensure that they remain accurate and effective. Where appropriate, a number of topics may be combined into a single written procedure. Wherever possible, procedures should be established at a level allowing them to be utilized across a number of implementation and maintenance projects and systems. When new procedures are needed, existing written procedures are reviewed to determine if they can be upgraded to include new requirements or processes. Redundant procedures must be avoided. 

Because of the draft limitations on the baghouse, the melt furnace firing rate had to be maintained at a reduced rate, which limited metal output. Time constraints and economics precluded upgrading the baghouse system to accommodate the combined dust and fume loads from the melting furnace and dross reclamation systems. 

A new synergistic process for bitumen upgrading is presented. There remain many possibilities of new, innovative, synergistic processes, which combine chemical and nuclear systems for efficient, clean and economical production of energy carriers. 

Workstations for protein crystallography have been set up by the Departments of Chemistry and Biology at the Brookhaven National Laboratory. The optical system design for the Chemistry beam line is based on a spherical collimating mirror, followed by a two-crystal ( +, —) monochromator and finally by a bent cylindrical mirror (Hastings et al 1983). The instrument combines a liquid helium cryostat Huber diffractometer, for work on valence electron density studies of small molecules, with an oscillation camera for protein crystallography. The diffractometer may be upgraded to include a multichannel electronic area detector. 

Additional system safety requirements and constraints, including those on operations and maintenance or upgrades will be used in the design of the safety control structure at the organizational and social system levels above the physical system. There is no one correct safety control structure what is practical and effective will depend greatly on cultural and other factors. Some general principles that apply to all safety control structures are described in chapter 13. These principles need to be combined with specific system safety requirements and constraints for the particular system involved to design the control structure. 

Contrary to the complex of upgrade and refurbishment procedures In this paper the term maintenance is used in the following marmer Maintenance is the combination of all measures which ensure the specified system function. Maintenance procedures should have a small effort and a limited duration. For safety reasons maintenance procedures in NPP can just take place in one redimdancy without reducing the availability of parallel systems as well as combined systems (e.g. CPU of software based systems) in an irregularly way. Consequently the update with new or modified SW-versions in this sense is no part of maintenance for safety systems. 

---