HARMONIC FUNCTION
\hɑːmˈɒnɪk fˈʌŋkʃən], \hɑːmˈɒnɪk fˈʌŋkʃən], \h_ɑː_m_ˈɒ_n_ɪ_k f_ˈʌ_ŋ_k_ʃ_ə_n]\
Sort: Oldest first
-
If a point moves uniformly in a circle, the foot of the perpendicular let fall from it to a fixed diameter has a simple Harmonic motion; the algebraical expression for such a motion is a Simple H. function ; the sum of two or more S. H. functions is a Complex H. function. The motions which occasion sound, light, etc., can be represented by H. F. (For H. progression, vide Progression.)
By Henry Percy Smith
Word of the day
Proto Oncogene Proteins c erbB 2
- cell surface protein-tyrosine kinase that is found to be overexpressed in significant number adenocarcinomas. It has extensive homology can heterodimerize EGF EPIDERMAL GROWTH FACTOR), 3 receptor (RECEPTOR, 3) and the 4 receptor. Activation of erbB-2 receptor occurs during heterodimer formation with a ligand-bound erbB family members. EC 2.7.11.-.