Shape classifier, physical

Solids can be as hard as diamond or as soft as wax. Some readily conduct electricity, whereas others do not. The shapes of some solids can easily be manipulated, while others are brittle and resistant to any change in shape. The physical properties as well as the structures of solids are dictated by the types of bonds that hold the atoms in place. We can classify solids according to those forces (T FIGURE 12.1). 

Microscopes are also classified by the type of information they present size, shape, transparency, crystallinity, color, anisotropy, refractive indices and dispersion, elemental analyses, and duorescence, as well as infrared, visible, or ultraviolet absorption frequencies, etc. One or more of these microscopes are used in every area of the physical sciences, ie, biology, chemistry, and physics, and also in their subsciences, mineralogy, histology, cytology, pathology, metallography, etc. 

Proteins may be classified on the basis of the solubility, shape, or function or of the presence of a prosthetic group such as heme. Proteins perform complex physical and catalytic functions by positioning specific chemical groups in a precise three-dimensional arrangement that is both functionally efficient and physically strong. 

In the previous sections, we introduced resonance states and discussed situations in which resonances can be observed. In this section, we address the question of the origin for the appearance of resonances, or in other words, the basic question is what can bring about the formation of metastable states. In a very general manner, it is common to classify resonances into two main groups shape-type resonances and Feshbach-type resonances. Although the classification is not unique and may depend on the chosen representation of the Hamiltonian [46, 47], it can be extremely helpful in understanding the physical mechanism that leads to the formation of the metastable state. 

The different types of adsorbents (carbon materials, clays, zeolites, etc.) and the large family of possible adsorptives give physical adsorption isotherms with different shapes. The IUPAC has classified the physical adsorption isotherms into six principal groups [8], However, because different types of pores are usually present in the adsorbent, intermediate shapes are observed. These adsorption isotherms are schematically represented in Figure 4.1. 

Within classifier predicates, the hands represent physical objects, and various handshapes represent distinct types of objects. Such mapping follows a straightforward structural analogy in which physical elements (the hands) represent other physical elements (e.g., furniture, people, vehicles, etc.). Figure 6.1 illustrates the B and C classifier handshapes used for objects of particular shapes and sizes, i.e. flat surfaces or cylindrical objects. Also shown in Figure 6.1 is the 3 handshape used for vehicles (e.g., cars, boats, and bicycles). 

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