We present a categorical characterisation of term graphs (i.e., nite, directed acyclic graphs labeled over a signature) that parallels the well-known char-acterisation of terms as arrows of the algebraic theory of a given signature (i.e., the free Cartesian category generated by it). In particular, we show that term graphs over a signature are one-to-one with the arrows of the free gs-monoidal ...

This paper proposes a bi-directional isolated DC/DC converter for the battery charger and discharger of Electric Vehicle to reduce power loss under light loads. The proposed consists two full-bridge inverters, an transformer, boost reactor, provides transmission, buck-boost conversion, zero-voltage-switching reactive suppression. Two semiconductors inverter in rectification side are turned off ...

Aiming at the pulsation problem of traditional external grooved wheel fertilizer distributor, an opposed double spiral distributor is designed, and design analysis parameters are carried out. In order to obtain with best discharge effect, movement process particles in opposite was analyzed through discrete element simulation. Using combination simulation bench test, a orthogonal experiment out ...

Pico hydropower plant is a generator engaged in the field of renewable energy, general, power system uses 3-phase synchronous with AC voltage, its development it can be used as converter, by converting voltage to DC voltage. One so that battery charger or discharger. An AC-DC also known rectifier, device for alternating current (AC) direct (DC). In many technologies industrial world utilize con...

Fertilization stability is an important index for evaluating the operational performance of variable fertilizer dischargers. To study influence law combination discharge wheel rotational speed n and opening L on performance, this paper firstly constructs a amount prediction model based radial basis function neural network (RBFNN) through calibration test, after verification, its determination c...

A new hybrid DC converter is proposed and implemented to have wide voltage variation operation bidirectional power flow capability for photovoltaic applications. The converter, including a half- or full-bridge resonant circuit, adopted realize the low switching losses. To overcome problem (60 V–480 V) from panels due sunlight intensity, structure half-bridge circuit used in presented implement ...