Quantum thermal transistor

We demonstrate that a thermal transistor can be made up with a quantum system of 3 interacting subsystems , coupled to a thermal reservoir each. This thermal transistor is analogous to an electronic bipolar one with the ability to control the thermal currents at the collector and at the emitter with the imposed thermal current at the base. This is achieved determining the heat fluxes by means of the strong-coupling formalism. For the case of 3 interacting spins, in which one of them is coupled to the other 2, that are not directly coupled, it is shown that high amplification can be obtained in a wide range of energy parameters and temperatures. The proposed quantum transistor could, in principle, be used to develop devices such as a thermal modulator and a thermal amplifier in nano systems.Comment: Physical Review Letters, American Physical Society, 2016, 116, pp.20060

A ROS2 based communication architecture for control in collaborative and intelligent automation systems

Collaborative robots are becoming part of intelligent automation systems in modern industry. Development and control of such systems differs from traditional automation methods and consequently leads to new challenges. Thankfully, Robot Operating System (ROS) provides a communication platform and a vast variety of tools and utilities that can aid that development. However, it is hard to use ROS in large-scale automation systems due to communication issues in a distributed setup, hence the development of ROS2. In this paper, a ROS2 based communication architecture is presented together with an industrial use-case of a collaborative and intelligent automation system.Comment: 9 pages, 4 figures, 3 tables, to be published in the proceedings of 29th International Conference on Flexible Automation and Intelligent Manufacturing (FAIM2019), June 201

Synchronous servo loop control system Patent

Design and development of synchronous servo loop control syste

The Way of the Servant Citizen: Building, Mindfulness and Reverence for Work (BMW): A Thematic Synthesis of Servant Attributes from Servant Leadership, Organizational Citizenship Behavior and the Servanthood of Jesus

The servant-first is central in writings on servant leadership and the biblical Jesus on becoming servants. A servant-first on its own volition seeks to serve, and to serve first the welfare of others before their own, and it does not necessarily hold a formal leadership position. The study introduces the term servant citizen to refer to one who is servant-first and an ordinary member of community. The study aimed to provide leaders, educators and trainers with teachable content that aids in the formation of servant citizens ─ more than nominal service-providers ─ from organization members. The study’s starting reference was servant leadership which, as related studies suggested, bore similarities with the servanthood of Jesus, and separate empirical studies associated with organization citizenship behavior. The researcher reviewed selected writings related to the three discrete concepts, gathered servant attributes and coded these, then distilled integrative themes. Preliminary analyses produced seven higher-level themes around the servant-first: (1) Developing character and self-concept; (2) Building capacity and readiness to serve; (3) Building people, relationships and sense of community; (4) Recognizing Thou in the other; (5) Adherence to laws, standards and norms; (6) Awareness of interdependencies and personal responsibilities; and (7) Getting the work done. The thematic analytical process, when saturated, yielded an ultimate synthesis: a triad of themes consisting of Building, Mindfulness and Reverence for Work (BMW). The study originates a new paradigm for servant citizenship as BMW simultaneously enacted. Abundant in meanings in either secular or Christian perspective considered independently, BMW provides a foundational content for teaching to develop individuals and institutions toward becoming servant citizens. The study contributes toward setting a future research agenda on servant citizenship ─ a concept heretofore non-extant in literature ─ and on BMW as a conceptual tool for weaving servanthood into the fabric of community, institutions and society

Seeing as believing – or is it?

This article explores aspects of the life and art of the Australian artist Arnold Shore, the subject of my recently published book Arnold Shore – Pioneer Modernist, Macmillan Art Publishing, 2009. The pantheon of Australian art history celebrates particular artists and their visual output. These designated artists become the celebrated and orthodox names, who are seen as defining specific cultural and historical moments. Arnold Shore is cursorily acknowledged in many Australian art history accounts, most often for his teaching at the modernist school he co-founded in 1932, The Bell – Shore School. Much about his art and life remains hidden with the National Gallery of Victoria owning thirteen of his works, none of which are on display. Whilst suggesting there are specific reasons for Shore`s place in art history not being fully acknowledged, the article further investigates why some artists are consigned to a peripheral role, only for their significance and importance to be re-discovered at a later date after historical revisionism. Why is this so? Who are the tastemakers and gatekeepers that actively suppress artists stories and their contributions from receiving wider currency? What factors potentially conspire to obscure or push aside one group to the detriment of others? These questions are increasingly prescient in the twenty-first century as globalisation and spectacle capitalism, compete with representative historical perspectives; issues raised in the latter part of the article