This study was aimed at the synthesis of a library of heterocyclic compounds. The initial reactions involved the condensation of substituted acetophenones with benzaldehyde derivatives in either ethanolic solution of ...

Vetiver grass (Chrysopogon zizanioides;CZ) is a well-known grass that can both remediate various heavy metals in soil as well as producing essential oil that is commonly used in premier perfumery, food and pharmaceutical ...

In this study, we focus on finding the possible optimal strategy where there is consump tion, stochastic income, purchasing of life insurance and investment in risky and risk-less investments are made. The stock follows ...

As new viruses and new pandemics emerge we face the question as to whether our global health systems are well prepared to deal with them. Non pharma ceutical measures are a key control measure in the battle against ...

In this thesis, new generalized families of distributions namely, Weibull Odd Burr III-G (WOBIII-G), Ristic-Balakhrishnan Odd Burr III-G (RBOBIII-G), Risti ´ c-´ Balakhrishnan Marshall-Olkin-G (RBMO-G), Exponentiated ...

In this project we study the exponential convergence of Markov processes to quasi-stationary distributions (QSDs) with applications. Quasi-stationary distributions are useful when it comes to understanding the behavior ...

We start by considering the theory of electromagnetic waves, from the Maxwell’s equa tions, the extended (1+1)D complex Ginzburg-Landau equation, higher-order nonlin ear Schr¨odinger equation are derived with the third, ...

Current technologies for the detection and extraction of diamonds involve the repeti tive mechanical crushing of kimberlite ore, resulting in the damage of real diamonds. In particular, the breakage of large diamonds into ...

Photovoltaic technology is a very crucial technology and it is gradually growing worldwide as there is plenty of sunshine daily especially in African countries. The aim of photovoltaic technology is to generate electricity ...

Mining productivity is a measure of the effectiveness of mining resource inputs computed as a ratio of production output per input resources. Factors affecting productivity can be grouped as a combination of technical ...