This book focuses on using and implementing Circulation Control (CC) - an active flow control method used to produce increased lift over the traditionally used systems, like flaps, slats, etc. - to design a new type of fixed-wing unmanned aircraft that are endowed with improved aerodynamic efficiency, enhanced endurance, increased useful payload (fuel capacity, battery cells, on-board sensors) during cruise flight, delayed stall, and reduced runway during takeoff and landing. It presents the foundations of a step-by-step comprehensive methodology from design to implementation and experimental testing of Coandǎ based Circulation Control Wings (CCWs) and CC system, both integral components of the new type of aircraft, called Unmanned Circulation Control Air Vehicle. The methodology is composed of seven coupled phases: theoretical and mathematical analysis, design, simulation, 3-D printing/prototyping, wind tunnel testing, wing implementation and integration, and flight testing. The theoretical analysis focuses on understanding the physics of the flow and on defining the design parameters of the geometry restrictions of the wing and the plenum. The design phase centers on: designs of Coandǎ surfaces based on wing geometry specifications; designing and modifying airfoils from well-known ones (NACA series, Clark-Y, etc.); plenum designs for flow uniformity; dual radius flap designs to delay flow separation and reduce cruise drag. The simulation phase focuses on Computational Fluid Dynamics (CFD) analysis and simulations, and on calculating lift and drag coefficients of the designed CCWs in a simulation environment. 3-D printing and prototyping focuses on the actual construction of the CCWs. Wind tunnel testing centers on experimental studies in a laboratory environment. One step before flight testing is implementation of the qualified CCW and integration on the UAV platform, along with the CC system. Flight testing is the final phase, where design validation is performed. This book is the first of its kind, and it is suitable for students and researchers interested in the design and development of CCWs for small-scale aircraft. Background knowledge on fundamental Aerodynamics is required.
This book introduces a comprehensive and mathematically rigorous controller design for families of nonlinear systems with time-varying parameters and unstructured uncertainties. Although the presented methodology is general, the specific family of systems considered is the latest, NextGen, unconventional fixed-wing unmanned aircraft with circulation control or morphing wings, or a combination of both. The approach considers various sources of model and parameter uncertainty, while the controller design depends not on a nominal plant model, but instead on a family of admissible plants. In contrast to existing controller designs that consider multiple models and multiple controllers, the proposed approach is based on the ‘one controller fits all models’ within the unstructured uncertainty interval. The book presents a modeling-based analysis and synthesis approach with additive uncertainty weighting functions for accurate realization of the candidate systems. This differs significantly from existing designs in that it is capable of handling time-varying characteristics. This research monograph is suitable for scientists, engineers, researchers and graduate students with a background in control system theory who are interested in complex engineering nonlinear systems.
What can critical social psychology teach us about our sense of identity? How have psychosocial and feminist approaches challenged our understanding of subjectivity? Where is this complex and fast-moving field heading? This new edition of Critical Social Psychology addresses these questions and more, providing important insight into social psychology. Thoroughly updated and revised, it clearly outlines approaches such as social constructionism and psychoanalysis, and explains how these ideas can illuminate topics like social influence and prejudice. The second edition of Critical Social Psychology: - Includes two new chapters on applied health psychology and applied work psychology - Uses 'critical thinking boxes' to demonstrate the practical application of theory and debates, helping you engage with the different ideas - Contains revised content including an expanded section on research methods, as well as enhanced coverage of action research and critical narrative approaches Guiding you through the key topics in social psychology and mapping the critical approaches onto each concept, Critical Social Psychology is essential reading for students of both psychology and other social sciences.
This book focuses on teaching and learning with mobile technologies, with a particular emphasis on school and teacher education contexts. It explains a robust, highly-acclaimed contemporary mobile pedagogical framework (iPAC) that focuses on three distinct mobile pedagogies: personalisation, authenticity and collaboration. The book shows how mobile pedagogical practice can benefit from use of this framework. It offers numerous cutting-edge research resources and examples that supplement theoretical discussions. It considers directions for future research and practice. Readers will gain insights into the potential of current and emerging learning technologies in school and teacher education.
Community development is most effective and efficient when it is situated and led at the local level and considers the social behaviours, needs and worldviews of local communities. With more than eight out of ten people globally self-reporting religious belief, Religion and Development in the Asia-Pacific: Sacred places as development spaces argues that the role and impact of religions on community development needs to be better understood. It also calls for greater attention to be given to the role of sacred places as sites for development activities, and for a deeper appreciation of the way in which sacred stories and teachings inspire people to work for the benefit of others in particular locations. The book considers theories of ‘place’ as a component of successful development interventions and expands this analysis to consider the specific role that sacred places – buildings and social networks – have in planning, implementing and promoting sustainable development. A series of case studies examine various sacred places as sites for development activities. These case studies include Christian churches and disaster relief in Vanuatu; Muslim shrines and welfare provision in Pakistan; a women’s Buddhist monastery in Thailand advancing gender equity; a Jewish aid organisation providing language training to Muslim Women in Australia; and Hawaiian sacred sites located within a holistic retreat centre committed to ecological sustainability. Religion and Development in the Asia-Pacific demonstrates the important role that sacred spaces can play in development interventions, covering diverse major world religions, interfaith and spiritual contexts, and as such will be of considerable interest for postgraduate students and researchers in development studies, religious studies, sociology of religion and geography.
This will help us customize your experience to showcase the most relevant content to your age group
Please select from below
Login
Not registered?
Sign up
Already registered?
Success – Your message will goes here
We'd love to hear from you!
Thank you for visiting our website. Would you like to provide feedback on how we could improve your experience?
This site does not use any third party cookies with one exception — it uses cookies from Google to deliver its services and to analyze traffic.Learn More.