46 research outputs found
Correction:Experimental Study of the Impact of Folding Wingtip Devices on Aircraft Flight Mechanics and Handling Qualities (AIAA SciTech Forum and Exposition, 2023)
No full textCorrection Notice 1. One more author needs to be included to the author list: Huaiyuan Gu, Ronald Cheung, Fintan Healy, Djamel Rezgui, Mark Lowenberg, Jonathan Cooper Author(s) Affiliations: Professor of Flight Dynamics, Department of Aerospace Engineering, University of Bristol 2. Figure 9 caption needs to be changed to: Comparison of the drag curves of (a)(b) straight wing and (c)(d) swept wing with various hinge conditions. 3. Figure 11 caption needs to be changed to: Schematic representation of the shift of aerodynamic centre on the (a) straight and (b) swept wings caused by different hinge conditions. 4. Figure 23 caption needs to be changed to: Comparison of the short period damping and frequency measured from (a) straight wing model and (b) swept wing model incorporating various hinge conditions.</p
IMPACT OF THE PERCEPTUAL LEARNING BY SIMULATION ON DECISION-MAKING IN VOLLEY BALL
No full textThe objective of this study is to approach the decision-making process in volley ball through the perceptual learning by simulation. 148 pupils took part voluntarily to this experience. The pupils were divided into two groups. An Experimental Group (EG) which was to follow a program of learning of the technics of the Volley Ball on computer (Images in 3D) before they begin the learning and a Control Group (CG) who performed the classical learning through technical exercises. Tests have been realized after a period of learning on different technics of volleyball. The results showed that the group experimental had significantly improved these results during the decision-making. This study shows the need to use the new technology (simulation) to optimize the mental skills in teaching volleyball. Article visualizations
Unsupervised assignment for dynamic author name disambiguation in bibliographic citations
No full textFil: Gómez García, Carlos Andrés. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Unsupervised assignment for dynamic author name disambiguation in bibliographic citations
No full textFil: Gómez García, Carlos Andrés. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina
Rapid application development in the internet of things : a model-based approach
No full textThe Internet of Things (IoT) is a vision in which physical and digital objects are connected and cooperate to achieve particular goals. Unfortunately, the extent of expertise required to incorporate intelligent hardware, software, and computer network still presents a significant challenge. Service-oriented IoT middleware have been proposed quite often to solve this problem. However, they are mostly designed for professional developers with a high degree of flexibility and extensive features. Consequently, tool’s simplicity is often sacrificed, and they present a steep learning curve for entry-level developers. This dissertation aims at addressing this gap by elaborating the state-of-the-art in IoT developments and proposing IoTLink, a rapid IoT software development tool for novice developers. For designing IoTLink, the author reviewed the available IoT architectures. A typical pattern suggests that a physical object must be uniquely identifiable, has physical qualities that partly can be sensed by sensors, and has some capabilities or services that could affect the environment. Virtual entities may act as proxies to execute services and retrieving information about the physical objects. IoTLink is designed for enabling inexperienced developers to develop proxies representing domain objects and abstracting individual sensors and actuators. IoTLink design concept comprises a five layered architecture. The first layer is responsible for abstracting communication with heterogeneous data sources. The second layer deals with sensor fusion components to process and fuse sensor data into useful information. The third layer is concerned with the definitions of domain models and the concrete objects. The fourth layer provides output components, including interfaces to the application logic, distributed applications, and databases to store the information about the virtual objects. The fifth layer abstracts the application logic that access the domain objects. IoTLink employs a model driven approach for wiring these components visually. The visual model is then serialized into XML data and used to generate a Java implementation which can be executed as proxies. In addition, IoTLink offers a discovery broker allowing developers to share and discover IoT resources within the internet. The key advantage of IoTLink discovery is the ability to detect if similar devices are described with synonymous terms. This approach increases the discoverability of similar devices described with diverse terms. The author evaluated the practicability of IoTLink and model-driven approach within three distinct case studies in European research projects. The result shows that it could reduce approximately 2/3 of the development efforts. In addition, the author compared IoTLink’s usability to a Java middleware approach in a controlled experiment performed by 24 participants. The results show that IoTLink could on average reduce 44% of the development time and 48% of mistakes. Moreover, when used by developers with less than five years object-oriented experience, IoTLink was able to reduce up to 57% of mistakes compared to Java development
A proposal for a separative network to evacuate drainage waters and pluvial waters of stagnation in arid zones (Ain Sahra locality, Touggourt, Algeria)
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Spatio-temporal analysis of extreme rainfall and flooding in the semi-arid region of Algeria and its application to the regionalization of flood flow estimates
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