Mechanical plating definition

GENERAL NOTE Titles of referenced standards not listed in the Specifications Index for Mandatory Appendix IX are as follows A 20, General Requirements for Steel Plates for Pressure Vessels, and A 370, Test Methods and Definitions for Mechanical Testing of Steel Products. 

Many theories have been suggested to explain the mechanism of migration and separation of analytes in the column. The oldest one, called the theoretical plate model, corresponds to an approach now considered obsolete but which nevertheless leads to relations and definitions that are universal in their use and are still employed today. 

The timing and extent of the Colorado Plateau uplift bears on the possible mechanisms that caused it. Various hypotheses have been suggested including influence of a mantle plume (Parsons et al. 1994), lithospheric thinning and/or delamination (Spencer 1996 Lastowka et al. 2001), and subduction of the Farallon plate margin (East Pacific Rise) (Dickinson and Snyder 1979). With a definitive uplift history, it will be possible to place constraints on the mechanisms of uplift and thereby shed light on mantle processes and lithospheric evolution. 

As with most questions on particle size, the answer is very dependent on the definition used and the experimental technique. For a dynamic aerosol cloud, the correct definition is the aerodynamic particle size, which is the diameter of an equivalent sphere of unit density. An equivalent sphere is a conventional assumption in particle sizing, but for the aerodynamic size, the density is included to account for the momentum of the particle, i.e., both mass and velocity are important. The technique chosen for measurement must include these parameters, and impaction is the normally chosen technique, which also reflects the major deposition mechanism in the lung. A schematic of an impaction plate is given in Figure 10.3. 

On the basis of these ideas, biocompatibility was redefined a few years ago (2), as the ability to perform with an appropriate host response in a specific situation. Clearly this definition encompasses the situation where inertness is still required for the most appropriate response in some situations is indeed no response. A traditional bone fracture plate is most effective when it is attached mechanically to the bone and does not corrode no response of the tissue to the material is normally required. Even here, however, we have to concede that a material that could actively encourage more rapid bone healing might be beneficial so that a specific osteoinductive response would be considered appropriate. 

---