Tensorial Computation of the intensity of UHF Electromagnetic Radiation within Geometrical Structures

In this paper, a tensorial method was used in computing the intensity of Ultra High Frequency(UHF) radiation within 2D and 3D geometrical structures. This was done based on the theoretical concepts of classical electromagnetism. Using a software program, “power estimator” the intensities at various distances from the source of radiation were obtained and it was found that shapes which are less geometrically homogenous exhibits high intensity values and that the maximum intensity value was observed within a cylinder to be 1534.70w/m² at 0.02m away from the source of radiation, while the minimum intensity value was observed in a circle at 0.10m away from the source to be 2.49w/m²

Investigation of the Effect of Solar Panel Temperature on Power Output Efficiency in Brass, Nigeria.

Background: Luminous efficacy is a property of light sources, which indicates what portion of the emitted electromagnetic radiation is usable for human vision relative to the overall efficiency of a light source for illumination. This also applies to solar panels. Purpose: To confirm the possibility of using solar panel as an alternative source of generating electricity and to highlight hindrances to the maximization of solar panel efficiency in the Niger Delta region of Nigeria using Brass as a case study. Materials and Methods: A Modern digital instrument, BK precision model 615 digital light meter and Alda AVD890C digital multimeter, were use for measurement of solar radiation, current and voltage respectively, under varying conditions of temperature. Result: An average Solar panel temperature of 26.2 oC was recorded in the morning hours. Towards noon, solar panel temperature increased up to 45 0C. Output current also increased from 0.0 to 20.0 x 10-1A. Solar panel temperatures between 26oC and 45oC appeared to favour increase in output current. Above 45oC, output current began to drop despite further increase in solar panel temperature. The best solar panel operating temperature in Brass is 45oC. Between the solar panel temperatures of 26oC and 32oC, output voltage remained relatively stable varying between 8.0V and 8.10V. Conclusion: Within limits, solar panel efficiency appears to be temperature dependent up to a maximum temperature, increasing up to 87.0% at 43.8oC. Higher temperatures appear to be counterproductive on solar panel efficiency

Magneto-transport and thermal properties of the Yukawa potential in cosmic string space-time

Yukawa potential has garnered remarkable attention since its proposition. It is applied in condensed matter physics, plasma physics, high energy physics and related areas. Based on this widespread applicability, this study focused on the analysis of the effects of topological defect on the thermal and magnetic properties of this system. Non-relativistic treatment of this potential in the presence of magnetic fields and Aharonov–Bohm is performed using the functional analytical approach (FAA). The energy equation and the wavefunction are analytically derived. The accessible energy levels are summed up to obtain to get the partition function that is used to derive the expressions for the thermo-magnetic properties of the Yukawa potential. These properties are analysed in detail by means of graphical representations. It is observed that in the various settings of the analysis, the system has a diamagnetic characteristic and the behaviour of the heat capacity is in accordance with the recognized law of Dulong–Petit, although some anomalies are observed. This irregular behaviour could be attributed to Schottky anomaly. The results of our research will be helpful in many fields of physics: condensed matter physics, high energy physics, etc