DSpace Collection:http://repository.fuoye.edu.ng:80/handle/123456789/1152026-04-16T10:19:34Z2026-04-16T10:19:34ZCOMPARISON OF CALCULATED WORK FUNCTION OF ELEMENTS EXPRESSED IN TERM OF FERMI ENERGY AND DENSITY OF FREE ELECTRON WITH OTHER METHODSADEBAYO SAMUEL, FADAHUNSIOlubosede, O. Dr.http://repository.fuoye.edu.ng:80/handle/123456789/13322016-05-17T13:29:28Z2015-09-01T00:00:00ZTitle: COMPARISON OF CALCULATED WORK FUNCTION OF ELEMENTS EXPRESSED IN TERM OF FERMI ENERGY AND DENSITY OF FREE ELECTRON WITH OTHER METHODS
Authors: ADEBAYO SAMUEL, FADAHUNSI; Olubosede, O. Dr.
Abstract: The purpose of this project is to derive an expression for work function expressed
in terms of Fermi energy and electron density parameter. This approach is referred
to as the Metallic Plasma Model. After calculating the work function of metals
using this approach, the result gotten are then analyzed and compared to the
experimental values of work function for these metals. Also, the results gotten
from this approach for each metal is compared to that which was gotten using other
approaches such as SJM- Simple Jellium Model and Ab- initio method.2015-09-01T00:00:00ZCONSTRUCTION OF A 2KVA MODIFIED SINE WAVE INVERTER WITH AN IN-BUILT CHARGE CONTROLLERFAGITE, OLUWATOYIN OLUWAKEMIhttp://repository.fuoye.edu.ng:80/handle/123456789/12962016-05-03T12:36:20Z2015-10-01T00:00:00ZTitle: CONSTRUCTION OF A 2KVA MODIFIED SINE WAVE INVERTER WITH AN IN-BUILT CHARGE CONTROLLER
Authors: FAGITE, OLUWATOYIN OLUWAKEMI
Abstract: The purpose of this project is to design and construct a 1600W (2kVA), 220V
inverter at a frequency of 50Hz. This device is constructed with locally
sourced materials of regulated standards. The basic principle of its operation
is a simple conversion of 12V Direct Current (DC) from a battery using
semiconductors at a frequency of 50Hz, to a 220V Alternating Current (AC)
across the windings of a transformer. An additional power supply to the
public power supply having the same power output is thus provided at an
affordable price. This project is based on the design of 2kVA (1.6 kW) inverter
system and incorporate the use of switching scheme automatic voltage
regulator. The inverter is set to shut-down if the threshold voltage of 11.5V
(Min.) is reached and more 13.5V (Max.) during the charging. The switch
mode of a modified wave-switching scheme uses an astablemultivibrator to
switch on the semiconductor switches-Metal Oxide Semiconductor Field Effect
Transistor (MOSFET).2015-10-01T00:00:00ZA RADIOMETRIC MAPPING OF FEDERAL UNIVERSITY OYE - EKITI MAIN CAMPUS, SOUTHWESTERN NIGERIAADEJUGBAGBE, TAIWOhttp://repository.fuoye.edu.ng:80/handle/123456789/11272016-03-21T12:47:19Z2015-10-01T00:00:00ZTitle: A RADIOMETRIC MAPPING OF FEDERAL UNIVERSITY OYE - EKITI MAIN CAMPUS, SOUTHWESTERN NIGERIA
Authors: ADEJUGBAGBE, TAIWO
Abstract: The radiometric mapping of Federal University Oye-Ekiti Main Campus along Are-Afao
Locality was carried out in this study. For this purpose, measurement of the radiation
levels were done along 11 major traverses covering the entire developed area of the
Campus. The measurement were carried out by means of a very sensitive portable DSM-
500 Geiger Mueller Survey Meter, with serial number 10005. The results obtained
showed that the global average of radiation level for Federal University Oye-Ekiti Main
Campus was 0.055µSv/hr translating to an annual dose rate of 0.482mSv/yr which falls
below the world average dose limit of 2.4mSv/yr for environmental background radiation
as reported by UNSCEAR,
ICRP (2015-10-01T00:00:00Z