A new transformerless buck–boost converterwith simple structure is proposed in this study. Comparedwith the traditional buck–boost converter, the proposedbuck–boost converter’s voltage gain is squared times of theformer’s and its output voltage polarity is positive. Theseadvantages enable it to work in a wider range of positiveoutput. The two power switches of the proposed buck–boost converter ...

This paper present a pulse width modulation non-isolated buck converter using PID controller. The buck converter constituted by one Gto, one inductor, one capacitor, one diode and one load resistor. In this the buck converter connected to the PID controller, PID controller calculate an error value as the difference between a measured process variable and a desired set point. The proportional P ...

The study was carried out at the Livestock Teaching and Research Farm of Federal University Dutsin-Ma to monitor performance Sokoto red bucks fed urea treated untreated rice milling waste. Twenty entire male were used. experimental animals allotted (n=5) in a completely randomized design (CRD) diets A B with 15% 30% inclusion levels waste, respectively, while C D contained (CRD). feeding trial ...

The study simulated different potential breeding programs to design the optimal structure and operational management for Borana goat. It evaluated scenarios using ZPLAN+ software maximize genetic gain, discounted profit determine optimum size of base population a community-based program (CBBP) nucleus. analyzed combinations objective traits in index, assessed effect changing buck doe ratio, imp...

A confirmed case of human brucellosis motivated an investigation into the potential source of infection in Namibia. Since domestic animals are principal sources of Brucella infection in humans, 1692 serum samples were screened from sheep, goats and cattle from 4 presumably at-risk farms and 900 springbok (Antidorcas marsupialis) serum samples from 29 mixed farming units for Brucella antibodies ...

Independent of whether natural mating or artificial insemination is used for breeding, libido (sex drive) is evidently crucial to reproductive competence in all male meat animal species. Breeding goat bucks vary in their levels of libido; therefore, there is a need for the development of a predictive standardized test for estimating sex drive. The objective of this study was to evaluate libido ...

A total of 240 goat rearers, selected at random from three animal husbandry divisions the district, were interviewed by a pretested schedule and required data collected, analysed presented in present study. Majority respondents (52.50%) marketed male kids age 3-4 months, followed 5-6 months (47.50%). Most rearers bucks (63.75%) does (81.25%) years. (68.75%) sold goats to middle men disposed the...

BACKGROUND Vitrification has proven to be more effective than slow freezing methods to cryopreserve mammalian oocytes. The objectives of this study were to evaluate the effects of vitrification on immature and in vitro matured, denuded and cumulus compact goat oocytes and their subsequent fertilization. METHODS Oocytes were either cryopreserved as immature cumulus compact (IMCC) (n=98 Exp 1; ...

The DC transfer functions for the buck, boost, and Cuk PWM DC-DC converters in continuous conductionmodearell, l / ( l D ) , and-D/( l -D) respectively, ,where D is the duty cycle. Therefore. it is reasonable to expect that the Cuk PWh4 DC-DC converter circuit [l] can be synthesized by cascading boost and buck converter circuits. The purpose of this paper is to present a systematic and rigorous...