Optimum insertion force

Optimum insertion force is a high-value property for press-fit assembly. It is determined by the following equation [6] ... 

The insertion of various t5q>es of in situ testing probes into the sediment typically causes small amount of soil disturbance. Sometimes, the creation of soil disturbance is part of the test. The cone penetrometer and the piezocone tests specifically measure the force to disturb the soil in the Prandtl zone. By contrast, the vane displaces soil upon insertion, which causes disturbance in an unknown distance below and aroxmd the vane (Figure 4.28). The disturbance caused by vane insertion can be minimized in a number of ways. Methods to reduce disturbance are requiring (1) a minimum area ratio and (2) optimum speed of insertion. 

Balloon-expandable stents for example, Palmaz (Johnson 8c Johnson, Warren, NJ) and Tantalum Strecker (Boston Scientific). These stents are inserted mounted on an angioplasty balloon catheter and expanded by the balloon when in an optimum position across the stricture. Balloon-expandable stents are difficult to deploy around curves and have reduced radial force compared... 

Temperature Control Optimum separation needs strictly controlled temperatures. This is achieved by inserting capillaries in cartridges placed inside the capillary electrophoresis system. Temperature controlled air or liquid coolant is then forced through the cartridge to regulate the temperature. 

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