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This work summarizes the state-of-the-art development of inertial electrostatic confinement (IEC) thruster, which can be divided into two parallel lines of development: the IEC plasma source and the corresponding electromagnetic nozzle (EMN). Both developing lines start from the establishment of the theory and modeling and evolve to the design implementation and experimental verification. The IEC discharge model highlights a novel perspective on the IEC discharge physics and the impacts of the respective critical parameters, which layouts the design for the IEC plasma source. Experimental verification for the theory is demonstrated via the optical emission spectroscopy and collision radiative model. The results provide conclusive evidence of forming a spherical double layer within the IEC plasma source, which is the key to establishing the proposed IEC discharge theory in this work. This work presents a comprehensive study on the magnetohydrodynamic theory for assessing the plasma acceleration in the magnetic nozzle. Nevertheless, the result shows a performance limitation of the magnetic nozzle. An innovative invention is proposed to overcome the limitation known as the EMN. Thorough descriptions of EMN and its working principle are summarized in this work, including its effects on plasma confinement, acceleration, and detachment. Investigation of the plasma plume properties by miscellaneous plasma diagnostics tools further demonstrates EMN functionality and constitutes the first IECT prototype with proof-of-concept in literature.
The management of elections is increasingly generating impassioned debate in these East African nations Burundi, Kenya, Rwanda, Tanzania and Uganda. The bodies that manage and conduct elections are, therefore, coming under intense citizen and stakeholder scrutiny for the manner in which they are composed, how they organise and perform their mandates, and the outcomes they achieve. The effectiveness of electoral management bodies (EMBs) has largely been influenced by the impact of political violence on election management reforms in East Africa. Even in countries where EMBs are the products of reforms initiated in the aftermath of violent disputes over elections, they still face enormous challenges in dealing with electoral disputes and anticipating election-related crises. Although changes to constitutions and the laws in these countries have sought to make EMBs independent and, therefore, more inclined to deliver free, fair and credible elections, there are many issues that determine their impartiality and their ability to allow for the aggregation and free expression of the will of the people. These shortcomings negatively impact on democracy. This volume assembles case studies on the capacity of EMBs in these five East African countries to deliver democratic and transparent elections.