Aggregate dimension

They demonstrated that the linker length influenced the median diameter of the spherical aggregate that was formed, resulting in good control over the aggregate dimension. 

Aggregate dimension ASTM D 3849 determination of aggregate dimensions (unit length, width, etc.) by electron microscope image analysis... 

FIGURE 2 Crystallites and crystallinity in powder XRD. The aggregate (dimension c ) is composed of anisotropic crystallites with dimensions a, b. ... 

A typical situation is realized in such cases - fractal structure properties appear on a range scale which is limited by the dimensions of the particles forming the aggregate at the beginning, and at the end, by the dimensions of the initial fractal clusters. Typical particle dimensions are 1-10 nm aggregate dimensions are 10-1000 nm. The fractal dimension, df, depends on the conditions of aggregate formation and, as a rule, lies within a range of df = 2 — 2.9. 

Some interesting features are found for the lattice parameters and aggregate dimensions derived from SAXS for the liquid crystalline phases when gradually exchanging water for another polar solvent. Cosolvents that are shown to have a smaller effect on the lattice parameters (e.g., propylene glycol) will maintain the microstructure and stability of the phase up to high cosolvent-to-water ratios [110]. The block copolymers could be of particular practical relevance for different applications, e.g., within the pharmaceutical area. This prompts investigations of cosolvent-water systems that are acceptable in this context [110,111],... 

The relationship between aggregate dimensions and cell stress can be seen when encapsulating islets. Islets are roughly 200 pm in diameter when isolated from the pancreas. The inability to revascularize these cell masses following encapsulation can lead to insufficient nutrient supply for central cells. If oxygen can only penetrate through a tissue layer with a small number of cells, any... 

Aggregate dimensions measured by the Feret diameter method can range from as small as 100 nm to a few micrometres (a cluster of physically bound and entangled aggregates). Agglomerates can vary widely in size, from less than a micrometre to a few millimetres in the pallet. Figure 6.11 shows the distinction between a particle and an aggregate in CB. 

D 3849 PRIMARY AGGREGATE DIMENSIONS BY SEM/TEM D 3900 DETERMINATION OF ETHYLENE UNITS IN EPM/EPDM D 3959 DISCOLORATION SENSITIVITY TO TOBACCO SMOKE D 4004 METAL CONTENT BY AA PER METAL D 4005 DEGREE OF FUSION OF PVC DISPERSION COATINGS D 4075 METAL CONTENT BY AA... 

Despite the coarseness of the SPAM its ability to extract reasonable estimates for average lateral fibril dimensions and average lateral fibril aggregate dimensions is quite surprising (11,21,26). It is worth emphasizing that lateral dimensions can only be estimated by die SPAM in isolated cellulose I samples. 

Condensation is the increase of the aggregates dimensions by the addition of precursors. This reaction occurs on the homogeneous phase of the soUd and is comparable to a polymerization reaction. 

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