The work presents original theoretical bases of the mathematical model for determination power cables system reduction coefficient matrix. matter at hand is a new and completely general which can take into consideration an arbitrary number arrangement single-core cable arranged in treefoil formation. As fact, concerned matrix takes real (full) electromagnetic impact dominates pertaining cables,...

In this article, the temperature behavior of output power of superluminescent light-emitting diode (SLED) by considering the effect of non-radiative recombination coefficient, non-radiative spontaneous emission coefficient and Auger recombination coefficients has been investigated. For this aim, GaN pyramidal quantum dots were used as the active region. The numerical method has been used to sol...

In this paper we study the exact orders of lacunary sums of binomial coefficients. It is remarkable that the periodic patterns evolving from powers of 2 differ markedly from those of other prime powers. For the latter ones the pattern is transparent and is determined by the first term. For the former ones multisected generating functions are used to obtain the exact order or lower bounds on it.

One of the main problems in wind energy conversion system (WECS) is how to achieve maxim‌u‌m output power in different wind speeds. Maximum methods for maximum power point tracking in wind energy conversion syst‌e‌ms require the knowledge of system characteristics and mechanic sensors. So, using these methods practically will follow with high price and an abundant difficulties. In this pape...

One of the main problems in wind energy conversion system (WECS) is how to achieve maxim­u­m output power in different wind speeds. Maximum methods for maximum power point tracking in wind energy conversion syst­e­ms require the knowledge of system characteristics and mechanic sensors. So, using these methods practically will follow with high price and an abundant difficulties. In this pape...

A novel low-power synthesis technique is presented for the design of folded or time-multiplexed programmable-coefficient FIR filters where storage area is traded-off for lowering power consumption. A systematic technique is developed for low power mapping of FIR filters to architectures with arbitrary number of multipliers and adders. Power consumed in multipliers is reduced by reducing switchi...

Heat at the junction of light-emitting diodes (LED) affects the overall performance of the LED in terms of light output, spectrum, and life. Usually it is difficult to measure junction temperature of a LED directly. There are several techniques for estimating LED junction temperature. One-dimensional heat transfer analysis is one of the most popular methods for estimating the junction temperatu...

Wind energy has become a large contender of traditional fossil fuel energy, particularly with the successful operation of multi-megawatt sized wind turbines. However, reasonable wind speed is not adequately sustainable everywhere to build an economical wind farm. In wind energy conversion systems, one of the operational problems is the changeability and fluctuation of wind. In most cases, wind ...