Supersymmetric Extension of Non-Hermitian su(2) Hamiltonian and Supercoherent States

A new class of non-Hermitian Hamiltonians with real spectrum, which are written as a real linear combination of su(2) generators in the form $H=\omega J_{3}+\alpha J_{-}+\beta J_{+}$, $\alpha \neq \beta$, is analyzed. The metrics which allows the transition to the equivalent Hermitian Hamiltonian is established. A pseudo-Hermitian supersymmetic extension of such Hamiltonians is performed. They correspond to the pseudo-Hermitian supersymmetric systems of the boson-phermion oscillators. We extend the supercoherent states formalism to such supersymmetic systems via the pseudo-unitary supersymmetric displacement operator method. The constructed family of these supercoherent states consists of two dual subfamilies that form a bi-overcomplete and bi-normal system in the boson-phermion Fock space. The states of each subfamily are eigenvectors of the boson annihilation operator and of one of the two phermion lowering operators

Formulating layered adjustable autonomy for unmanned aerial vehicles

Purpose - In this paper, we propose a Layered Adjustable Autonomy (LAA) as a dynamically adjustable autonomy model for a multi-agent system. It is mainly used to efficiently manage humans and agents share control of autonomous systems and maintain humans’ global control over the agents. Design/Methodology/Approach - We apply the LAA model in an agent-based autonomous Unmanned Arial Vehicle (UAV) system. The UAV system implementation consists of two parts, software, and hardware. The software part represents the controller and the cognitive and the hardware represents the computing machinery and the actuator of the UAV system. The UAV system performs three experimental scenarios of dance, surveillance and search missions. The selected scenarios demonstrate different behaviors in order to create a suitable test plan and ensure significant results. Findings - The results of the UAV system tests prove that segregating the autonomy of a system as multidimensional and adjustable layers enables humans and/or agents to perform actions in a convenient autonomy levels. Hence, reducing the adjustable autonomy drawbacks of constraining the autonomy of the agents, increasing humans’ workload and exposing the system to disturbances. Originality/value - The application of the LAA model in a UAV manifests the significance of implementing dynamic adjustable autonomy. Assessing the autonomy within three phases of agents run cycle (task-selection, actions-selection, actions-execution) is an original idea that aims to direct agents’ autonomy towards performance competency. The agents’ abilities are well exploited when an incompetent agent switches with a more competent on

Architecture and Emerging Cities: The Impact of Technological Change in Building Material A Study of Minna, Nigeria

The rapid development of modern city can be attributed to the new technologies in building construction, urbanization and the need to change the urbanscape of the city, the ever changing needs of the society and persisting environmental problems has also necessitated the emergence of new cities all over the world. Thus, Architecture plays a pivotal role in the design and implementation of modern cities and towns. The Impact of industrial revolution gave rise to new materials to the Architects of the 20th century: reinforced concrete, steel and glass, these new materials were inexpensive, mass produced and flexible to use, thereby serving as main building components. The aim of this paper is to check the level of technology in regards to building materials used in construction in Minna. The paper will identify modern building materials currently used in construction and the existing local building components and materials that are visible in the buildings in Minna. Findings were appraised along with the impact of technology on building materials by analyzing the level of modern building materials that have been used in construction. The paper finally concluded that impact of technology is evident in the transformation of the Indigenous Architecture of Minna although some buildings are still built with the use of crude techniques and with the combination of modern and traditional building materials. Keywords:  Architecture, Modern Building Material, and Technolog

Is inflation a growth killer? Evidence from sub-Saharan Africa

This paper examines the impact of ination on economic growth in Sub-Saharan Africa in order to provide an empirical evidence whether ination hinders or boost economic activities in the region. The paper found that ination exhibits a reducing-growth effect in both short-term and long-term periods using Panel Autoregressive Distributed Lag (PARDL) model. Therefore, the study recommends that African government needs to address the issues of ination especially imported ination in order to stimulate sustainable economic growth in the region. In addition, strengthening political commitment to ensure conducive business environment has to be paramount rather than depending on the traditional model of bring your own infrastructure.Keywords: Ination, Sub-Sahara Africa, Panel Autoregressive Distributed La