3,799 research outputs found
Sustainability Assessment in Singular Structures, Foundations and Structural Rehabilitation in Spanish Legislation
The objective of this work is twofold: to determine the scope of the tools currently available for the assessment of
sustainability of structures in Spanish legislation; and to identify environmental aspects that have yet to be covered, especially in the
case of foundations and of measures aimed at the structural rehabilitation of singular buildings. To this end, the method proposed in
the Spanish Instruction of Structural Concrete is applied to the particular case of the supported foundations of the Cylindrical and
Colonel buildings in the construction of the new Faculties of Law and of Work Sciences, of the University of Seville during the
period between 2005 and 2008. This case was chosen for its special uniqueness and for its inclusion of environmental aspects that
remain outside the scope of existing methods.
Most of these aspects are also of great relevance in structural rehabilitation activities carried out in urban environments and
neighbourhoods, where a major surge is currently underway due to the economic crisis that has hit projects of newly constructed
buildings. By virtue of the work carried out in recent years in the field of sustainability and the environment by several research
groups at the University of Seville, a number of alternatives are proposed for the quantification of those aspects that remain to be
considered. These techniques are based on tools that allow the agents to intervene in a flexible and effective way in the project
implementation phase
Langley aerospace test highlights, 1985
The role of the Langley Research Center is to perform basic and applied research necessary for the advancement of aeronautics and space flight, to generate new and advanced concepts for the accomplishment of related national goals, and to provide research advice, technological support, and assistance to other NASA installations, other government agencies, and industry. Significant tests which were performed during calendar year 1985 in Langley test facilities, are highlighted. Both the broad range of the research and technology activities at the Langley Research Center and the contributions of this work toward maintaining United States leadership in aeronautics and space research, are illustrated. Other highlights of Langley research and technology for 1985 are described in Research and Technology-1985 Annual Report of the Langley Research Center
Aerospace Medicine and Biology. A continuing bibliography with indexes (supplement 225)
This bibliography lists 140 reports, articles, and other documents introduced into the NASA scientific and technical information system in October 1981
The MAGCLOUD wireless sensor network
Initially, the aim of this project consisted in manufacturing some nodes for a wireless sensor network by hand. If this document concludes that they can be properly produced in the EETAC lab, the cost of a future large deployment using raw components would be much lower than in the case of acquiring the
genuine factory assembled hardware. Also, the future students involved in the process could learn many useful advanced techniques along the way.
The project ended sowing a future WSN concept, so powerful that even could end competing on the market. We designed an almost unlimited scalable platform in terms of range, number of nodes, connectivity and measuring capabilities that is 100% free, open and environment sustainable. We called
this unique wireless magnitude acquisition cloud: THE MAGCLOUD. The whole system cannot be fully finished within the time and budget restrictions of a single PFC but slicing it into diverse future upgrades is a completely realistic approach.
In this document, sticking to the original idea, we explain how to produce the
functional hardware and software skeleton but also guide the reader on the future upgrades required to complete the MAGCLOUD system.
During the realization of the project we found countless problems that luckily end up solved. Those are carefully treated so can be avoided in the future
Project Shearwater Ground Effect UAV
The Shearwater unmanned aerial vehicle is a maritime fixed-wing drone that is designed to use ground effect force generated between the aircraft and a body of water to efficiently propel itself near the surface of a body of water. Shearwater features a virtual reality pilot interface and will act as a hybrid underwater vehicle that will eventually be able to operate both above and beneath the ocean’s surface. The Shearwater team developed existing design work to produce major subsystems that culminated in a flyable functioning prototype. An existing airframe was updated with working control surfaces tested in simulation and in practice, an electrical control system, and a working virtual reality (VR) pilot view. The Shearwater team tested a practical prototype and developed an optimized virtual reality command and control system
Functional requirements for the man-vehicle systems research facility
The NASA Ames Research Center proposed a man-vehicle systems research facility to support flight simulation studies which are needed for identifying and correcting the sources of human error associated with current and future air carrier operations. The organization of research facility is reviewed and functional requirements and related priorities for the facility are recommended based on a review of potentially critical operational scenarios. Requirements are included for the experimenter's simulation control and data acquisition functions, as well as for the visual field, motion, sound, computation, crew station, and intercommunications subsystems. The related issues of functional fidelity and level of simulation are addressed, and specific criteria for quantitative assessment of various aspects of fidelity are offered. Recommendations for facility integration, checkout, and staffing are included
Back to the future: digital decision making
The process of making decisions about the conception, design, development, deployment and regulation of complex information and communications technologies (ICT) systems with the potential to effect significant changes in society could be labelled 'digital decision making' (or DDM for short).
DDM is not the rational process that we might assume or wish it to be. It can even be difficult to define the boundaries of the social, political or technical environments to which the process applies. It depends on craft knowledge, power and agenda, politics and situational messiness, personal values, law and environment, and a host of other factors starkly illustrated by cases ranging from the Three Mile Island to the space shuttle Challenger disasters. Too often DDM leads to information systems failures and it is time we started to learn from those past failures
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