Reflection and Transition

a comparison of teachers and supervisors, with respect to teacher efficacy and reflection

supervisors play an undeniable role in training teachers, before starting their professional experience by preparing them, at the initial years of their teaching by checking their work within the proper framework, and later on during their teaching by assessing their progress. but surprisingly, exploring their attributes, professional demands, and qualifications has remained a neglected theme i...

The transition constant for arithmetic hyperbolic reflection groups

The transition constant was introduced in our 1981 paper and denoted as N(14). It is equal to the maximal degree of the ground fields of Varithmetic connected edge graphs with 4 vertices and of the minimality 14. This constant is fundamental since if the degree of the ground field of an arithmetic hyperbolic reflection group is greater than N(14), then the field comes from special plane reflect...

Numerical analysis of microretroreflectors: transition from reflection to diffraction

When a retroreflector has periodic structure, it also behaves as a diffraction grating. When its period becomes shorter, the effect of diffraction is more dominant than that of reflection. In particular, when the period steps into the resonance domain, the retroreflector no longer functions, because the number of diffraction orders decreases significantly and diffraction to the desired directio...

Room acoustic transition time based on reflection overlap.

A transition time is defined based on the temporal overlap of reflected pulses in room impulse responses. Assuming specular reflections only, the temporal distance between adjacent reflections, which is proportional to the volume of a room, is compared with the characteristic width of a pulse at time t, which is mainly controlled by the absorption characteristics of the boundary surfaces of the...

Room acoustic transition time based on reflection overlap (L)