Linear intercept

Linear interception Passive Low to high 0-10 Yes No Loosely consolidated formations ... 

The term passive interception is used to describe recovery systems that rely upon natural groundwater flow to deliver free-phase NAPLs to the collection facility without the addition of external energy (such as pumping). These systems often include linear interception-type systems such as trenches (or French drains), subsurface dams ( funnel-and-gate structures), combined hydraulic underflow with skimming, and density skimming units. 

At favorable locations, linear interception procedures have been effective for both LNAPL and dissolved organic chemicals. The concept behind ditches, trenches, and similar structures is to create an area of lowered hydrauhc head that directs subsurface flow to a recovery location. 

The average linear intercept diameter is the other common way to characterize grain sizes. The system is to lay down random lines on the microstructure and count the number of intersections per length of line. The average intercept diameter is then 1 = L/N, where L is the total length of line and N is the number... 

Finding the linear intercept grain size of a microstructure at 200X. 

For random microstructures, and the ASTM grain size are related. An approximate relationship can be found by assuming that the grains can be approximated by circles of radius, r. The area of a circular grain, nr2, can be expressed as the average linear intercept, , times its width, 2r, as shown in Figure 1.3, so 2r = nr2. Therefore,... 

What is the linear intercept grain size (in millimeters) corresponding to an ASTM grain size number of 8 ... 

Inglis, D. and Pietruszczak, S. 2003. Characterization of anisotropy in porous media by means of linear intercept measurements. Int. J. Solids Struct. 40, 1243-1264. 

Current/frequency Plot of vs. co linear, intercept at origin... 

Depending on the grain size, two limit cases have been analyzed [78]. At small grain sizes, it transpires that I I and h 0.31, where I is the mean linear intercept grain size (d = 1.71) and D = Dgy, such that Eq. (9) becomes ... 

Fig. 7.9 Microstructure of the four Y-TZP ceramics (20,000x). The average grain size according to the Linear interceptive count method was as follows Zeno (ZW) (383 47 nm) Everest (KV) (383 47 nm) Lava (LV) 537 nm ( 47) Lava colored (LVB) 643 nm ( 61) [26], With kind permission of Elsevier...

Martin s statistical diameter is also referred to as the mean linear intercept or mean chord and has been shown to relate to the specific surface in the following manner (Herdan, 1960) ... 

The grain size was modified by applying a heat treatment at 1050 C in inert gas atmosphere for 2, 12 and 112 h. The grain size was determined using optical microscopy and the mean linear intercept technique was applied. Figure 5.1 illustrates the variation in grain size for the example of Steel C. 

Using a graduated length of 4.5 cm, the following linear intercept lengths of the pores lying on this length were obtained ... 

Trial Number Linear Intercept length, mm Trial Number Linear Intercept length, mm Trial Number Linear Intercept length, mm... 

Figure 5(a) shows the GAR distribution of the zirccmia grains in an untested sample where the mean GAR is 1.1. This sample had an initial mean linear intercept grain size of Lo 125 nm for the zirconia phase. The initid mean linear intercept grain size for the spinel phase in this sample was estimated as Lo 50 nm. 

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