Erratum

<abstract xmlns="http://www.w3.org/1999/xhtml">The induced thermal stress in a heating process is an important parameter to be known and controlled in the magnetization process of core-shell nanowires. This paper analyses the stress produced by a laser heating source placed at one end of a core-shell type structure. The thermal field was computed with the non-Fourier heat transport equation using a finite element method (FEM) implemented in Comsol Multiphysics. The internal stresses are essentially due to thermal gradients and different expansion characteristics of core and shell materials. The stress values were computed using the thermo elastic formalism and are depending on the laser beam parameters (spot size, power etc.) and system characteristics (dimensions, thermal characteristics). Stresses in the GPa range were estimated and consequently we find that the magnetic state of the system can be influenced significantly. A shell material as the glass which is a good thermal insulator induces in the magnetic core, the smaller stresses and consequently the smaller magnetoelastic energy. These results lead to a better understanding of the switching process in the magnetic materials.</abstract>

Laser Heating of the Core-Shell Nanowires

<abstract xmlns="http://www.w3.org/1999/xhtml">The fluctuation of solar radiation at ground level represents a challenge in modeling the time series of solar irradiance. A procedure for the quantification of the instability of the solar radiative regime is reported. This procedure is based on the clearness index, as the ratio of the horizontal solar irradiance measured at ground level and the estimated one at extraterrestrial level. New quantities for classifying the days from the radiative stability point of view are being introduced. A procedure for classifying days according to their stability regime as stable, variable and unstable is presented.</abstract>

Quantification of the Solar Radiative Regime Variability Based on the Clearness Index

<abstract xmlns="http://www.w3.org/1999/xhtml">This study was designed to determine Maximum Horizontal Distance (XMHD) travelled by landfill leachate. Twenty - nine Schlumberger Vertical Electrical Soundings (VES) were conducted at 10.0m intervals away from four sides A, B, C and D of Lapite dumpsite. One VES point conducted outside the vicinity of the dumpsite served as a control. VES data were processed. Lowest resistivity values (Y) of VES points and the control point (Yc) were extracted. Curves of Y against X fitted best to yield an equation. XMHD was determined from the generated equation when Y = Yc. The determined (XMHD) on the four sides ranged from78.95m to 179.86m.</abstract>

Mathematical and Physical Sciences Department

Determination of Maximum Horizontal Distance (XMHD) Travelled by Landfill Leachate from Lapite Dumpsite in Ibadan, Southwestern Nigeria

<abstract xmlns="http://www.w3.org/1999/xhtml">The movement of water on the land surface, within channels and through the soil is dependent on some hydrological factors. For surface flow, the velocity of flow increases with the bottom gradient of the channel and the flow depth, but when roughness increases, it decreases. For a given flow depth, the velocity decreases as the channel height increases. The construction of sub-surface drainage helps to remove excess soil water that can cause flood. To model overland flow, a kinematic-wave approach is applied so that flood prediction could be made.</abstract>

Departyment of Mathematical and Physical Sciences

Channel Flow and Flood Estimate

<abstract xmlns="http://www.w3.org/1999/xhtml">In this report we revisit the results obtained in [<xref ref-type="bibr" rid="j_awutp-2016-0006_ref_001_w2aab3b8b2b1b7b1ab1ab1Aa">1</xref>, <xref ref-type="bibr" rid="j_awutp-2016-0006_ref_002_w2aab3b8b2b1b7b1ab1ab2Aa">2</xref>] where the relativistic Aharonov-Bohm was studied for the first time. The method is based on the exact solutions of the complete (1+3)-dimensional Dirac equation of fermions moving in ideal Aharonov-Bohm (AB) rings and cylinders which are used for deriving the exact expressions of the relativistic partial currents. It is shown that these currents can be related to the derivative of the fermion energy with respect to the flux parameter, just as in the non-relativistic case. However, a new and remarkable relativistic effect is the saturation of the partial currents for high values of the total angular momentum. Based on this property, the total relativistic persistent currents at <italic>T</italic> = 0 is evaluated for rings and cylinders obtaining approximative simple closed formulas. Notice that this report brings together the texts of Refs. [<xref ref-type="bibr" rid="j_awutp-2016-0006_ref_001_w2aab3b8b2b1b7b1ab1ab1Aa">1</xref>, <xref ref-type="bibr" rid="j_awutp-2016-0006_ref_002_w2aab3b8b2b1b7b1ab1ab2Aa">2</xref>] with some improvements and unitary notations.</abstract>

Relativistic Persistent Currents in Ideal Aharonov-Bohm Rings and Cylinders

<abstract xmlns="http://www.w3.org/1999/xhtml">In this paper, the viability of laser ablation of gold target immersed in medical distillated water used to produce nanoparticles having morphological, structural and compositional properties for medical applications is explored. The morphological properties were investigated by means of scanning electron microscopy (SEM). Energy-dispersive X-ray spectroscopy (EDX) analysis was used to reveal the composition of resulting particles. The absorbance in the wavelengths range of 300-800 nm can be assigned to the small gold nanoparticles.</abstract>

Pulsed Laser Ablation of the Solid Targets in a Liquid Environment

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Annals of West University of Timisoara - Physics

 The first issue of the Annals of the West University of Timisoara, was published in 1963 under the name of Mathematical and Physical Sciences Series, and it was issued on yearly basis ever since. Since 2002 the journal is being published in a new graphical format, as the Annals of the West University of Timisoara, Physics Series. The journal welcomes manuscripts presenting information not previously published in journals, in the areas of Materials Science, Theoretical and Computational Physics, Applied Physics, Medical Physics. The submitted manuscripts are peer-reviewed, insuring a high standard of scientific quality to the accepted articles.  Why subscribe and read  The journal publishes current and original research results in the fields of Materials Science, Theoretical and Computational Physics, Applied Physics, Medical Physics.  Why submit   Fast review and publication process  Fast and constructive peer review   Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 