Performance assessment of mobility solutions for IPv6-based healthcare wireless sensor networks

This thesis focuses on the study of mobile wireless sensor networks applied to healthcare scenarios. The promotion of better quality-of-life for hospitalized patients is addressed in this research work with a solution that can help these patients to keep their mobility (if possible). The solution proposed allows remote monitoring and control of patients’ health in real-time and without interruptions. Small sensor nodes able to collect and send wirelessly the health parameters allow for the control of the patients' health condition. A network infrastructure, composed by several access points, allows the connection of the sensor nodes (carried by the patients) to remote healthcare providers. To ensure continuous access to sensor nodes special attention should be dedicated to manage the transition of these sensor nodes between different access points’ coverage areas. The process of changing an access point attachment of a sensor node is called handover. In that context, this thesis proposes a new handover mechanism that can ensure continuous connection to mobile sensor nodes in a healthcare wireless sensor network. Due to the limitations of sensor nodes’ resources, namely available energy (these sensor nodes are typically powered by small batteries), the proposed mechanism pays a special attention in the optimization of energy consumption. To achieve this optimization, part of this work is dedicated to the construction of a small sensor node. The handover mechanism proposed in this work is called Hand4MAC (handover mechanism for MAC layer). This mechanism is compared with other mechanisms commonly used in handover management. The Hand4MAC mechanism is deployed and validated through by simulation and in a real testbed. The scenarios used for the validation reproduces a hospital ward. The performance evaluation is focused in the percentage of time that senor nodes are accessible to the network while traveling across several access points’ coverage areas and the energy expenditures in handover processes. The experiments performed take into account various parameters that are the following: number of sent messages, number of received messages, multicast message usage, energy consumption, number of sensor nodes present in the scenario, velocity of sensor nodes, and time-to-live value. In both simulation and real testbed, the Hand4MAC mechanism is shown to perform better than all the other handover mechanisms tested. In this comparison it was only considered the most promising handover mechanisms proposed in the literature.Fundação para a Ciência e a Tecnologia (FCT

A New Turn or More of the Same? A Structured Analysis of Recent Developments in Russian Foreign Policy Discourse

Russia and the European Union (EU) pursue active policies in their shared neighbourhood. The official Russian foreign policy discourses that we analyse here provide insights into the most important foreign policy ideas that Russia seeks to promote. They show how Russia perceives its role in the region and the world, as well as how it wants to develop its relations with neighbours. Building on previous studies identifying the main discourses in Russian foreign policy, this paper offers a new, comprehensive analysis of recent Foreign Policy Concepts and the annual Presidential Addresses to the Federal Assembly during President Vladimir Putin’s third term. The paper contributes to our understanding of Russian foreign policy discourses and Russia’s stance vis-a-vis the EU in the Eastern Partnership (EaP) region. Rather than focusing on a single aspect of foreign policy (a common practice adopted by many existing studies), it provides an analysis of all of them, thereby showing any shift in emphasis on different aspects of foreign policy and regions over time. Moreover, it takes a closer look at the content of the economic pitch within the official Russian discourses to attract the countries in the Commonwealth of Independent States (CIS). In this way, rather than focusing on what Russia does not offer (the values and political system of Western countries), it investigates whether the discourses presented contain a potential positive offer for the countries in the region

A New Turn or More of the Same? A Structured Analysis of Recent Developments in Russian Foreign Policy Discourse

Horizon 2020(H2020)693382OtherInstitute for HistoryInstituut Bestuurskund

Air Force Institute of Technology Research Report 2020

This Research Report presents the FY20 research statistics and contributions of the Graduate School of Engineering and Management (EN) at AFIT. AFIT research interests and faculty expertise cover a broad spectrum of technical areas related to USAF needs, as reflected by the range of topics addressed in the faculty and student publications listed in this report. In most cases, the research work reported herein is directly sponsored by one or more USAF or DOD agencies. AFIT welcomes the opportunity to conduct research on additional topics of interest to the USAF, DOD, and other federal organizations when adequate manpower and financial resources are available and/or provided by a sponsor. In addition, AFIT provides research collaboration and technology transfer benefits to the public through Cooperative Research and Development Agreements (CRADAs). Interested individuals may discuss ideas for new research collaborations, potential CRADAs, or research proposals with individual faculty using the contact information in this document

IEOM Society International

IEOM Society Internationa

A critical analysis of research potential, challenges and future directives in industrial wireless sensor networks

In recent years, Industrial Wireless Sensor Networks (IWSNs) have emerged as an important research theme with applications spanning a wide range of industries including automation, monitoring, process control, feedback systems and automotive. Wide scope of IWSNs applications ranging from small production units, large oil and gas industries to nuclear fission control, enables a fast-paced research in this field. Though IWSNs offer advantages of low cost, flexibility, scalability, self-healing, easy deployment and reformation, yet they pose certain limitations on available potential and introduce challenges on multiple fronts due to their susceptibility to highly complex and uncertain industrial environments. In this paper a detailed discussion on design objectives, challenges and solutions, for IWSNs, are presented. A careful evaluation of industrial systems, deadlines and possible hazards in industrial atmosphere are discussed. The paper also presents a thorough review of the existing standards and industrial protocols and gives a critical evaluation of potential of these standards and protocols along with a detailed discussion on available hardware platforms, specific industrial energy harvesting techniques and their capabilities. The paper lists main service providers for IWSNs solutions and gives insight of future trends and research gaps in the field of IWSNs

Reading Feminism, New Materialism and Post-colonial thought through Costume in Performance: Materiality, Culture and the Body

This PhD by Publication enables the advancement of the research methodologies and theoretical positions that underpin the development of Costume in Performance: Materiality, Culture and the Body, a book that critically explores potentialities of agency through the ways in which costume, itself, performs. Drawn from selected and interconnected past and contemporary costume-led performances, this thesis addresses how these may account for the capacity to both empower and oppress, focusing on contexts of colonialism and neocolonialism. Engaging in a wider and ongoing process of decolonising of the subject, it brings to bear key transdisciplinary theoretical advances that enable expanding beyond the ideas set out in the book to articulate intersecting ethical entanglements, while building on the implicit feminist, post-colonial position taken by it. In this process it considers costuming as a phenomenon that is critical, active, situated, material, temporal, spatial, in motion and embodied. Placing costume within post-humanist ontologies, I intend to make it an object of feminist, new materialist knowledge, that furthers thinking around performance as much as addresses social and environmental concerns, while offering a myriad of creative possibilities for future ethical interdisciplinary research, practice and pedagogy