The m-order connectivity index (G) m of a graph G is     1 2 1 1 2 1 ... ... 1 ( ) i i im m v v v i i i m d d d  G where 1 2 1 ... i i im d d d  runs over all paths of length m in G and i d denotes the degree of vertex i v . Also,        1 2 1 1 2 1 ... ... 1 ( ) i i im m v v v i i i ms d d d X G is its m-sum connectivity index. A dendrimer is an artificially manufactured or synth...

This paper experimentally studies the temperature dependencies of current–voltage (I–V) and capacitance–voltage (C–V) characteristics of SiC power devices, and discusses the relationships between physical phenomena and the measured characteristics in SiC. Two SiC Schottky barrier diodes (SBD) with different specifications were studied for temperatures ranging from 25 to 450◦C. Their I–V charact...

consideration of the current-voltage (i-v) characteristics variations of solar modules with temperature and irradiations variations is basic for maximum power point tracking (mppt). having a simple and accurate mathematical model for the optimize utilization of the solar modules is essential. in this paper, a novel modeling of photovoltaic systems with novel coefficients is proposed for mathema...