15,409 research outputs found
Bangladesh’s energy crisis: A summary of challenges and smart grid-based solutions
No full textSmart grid technologies are an important topic of research and discussion in academia and electrical industries globally. When properly applied, these technologies can enhance the quality, reliability, and availability of electric power while maximizing safety and sustainability. This will both improve economic productivity for industry and quality of life for residents of Bangladesh. Application of smart grid technologies to establish microgrids, based on renewable energy sources as solar and wind power, into the main grid is imperative to ensure the reliability and quality of the electric energy supply to the growing light industries; the driving force of the economic growth for Bangladesh. This paper presents the concurrent condition of energy sector of Bangladesh and discusses the purpose and methods for adopting key smart grid technologies to reach the target put forth by the government of the country in terms of satisfying the demand forecasted in the country's strategic long term plan
Blijft het in Den Haag bij smart city of wordt het smart urbanism?
No full textNormaal gesproken somt men bij smart cities de nieuwste gadgets op. Verbeeldt Siemens haar utopie en promoot men het smart grid als de grote oplossing. Echter, tijdens het ‘Actueel Den Haag Debat’ (ADHD) kwam een interessante tegenstelling bovendrijven. Die leidde tot wat ik maar de Wet van Hajer noem: smart city + lokale politieke keuzes = smart urbanism. Wat gebeurde er?Heritage & DesignTeachers of Practic
How Local Policy Priorities Set the Smart City Agenda
No full textpeer reviewedThe smart city concept has emerged as a key subject pursued by local governments. Yet, it is not clear how policymakers narrow down the topics to focus on with respect to their smart city agenda. As a result, the aim of this paper is to propose a theoretical contribution that explains how local governments define their smart city policy agenda. It is suggested that the agenda is influenced by policy priorities at the local level from other urban domains. To support this notion, policy studies literature is used to show that three streams of problems, policy, and politics, when aligned, set the policy agenda. The smart city agenda will be formed from key ideas existing at the local political level, such as policy priorities, that have now been matched with solutions framed in the smart city context, all underpinned by a favourable political environment. In addition, from smart city policy related documents, a topic modelling analysis illustrates a set of topics that are associated to the smart city policy agenda in two cities, London and Melbourne. This shows how some topics on the smart city agenda can be likened to issues that are the primary topic of another policy domain
Saving Face: Shared experience and dialogue on social touch, in playful smart public space
No full textCan shared experience and dialogue on social touch be orchestrated in playful smart public spaces? In smart city public spaces, in which physical and virtual realities are currently merging, new forms of social connections, interfaces and experiences are be- ing explored. Within art practice, such new connections include new forms of affective social communication with additional social and sensorial connections to enable and enhance empathic, intimate experience in playful smart public space.This chapter explores a novel design for shared intimate experience of playful social touch in three orchestrations of ‘Saving Face’, in different cultural and geographical environments of smart city (semi-) public spaces, in Beijing, Utrecht, Dessau-Berlin. These orchestrations are purposefully designed to create a radically unfamiliar sensory synthesis to disrupt the perception of ‘who sees and who is being seen, who touches and who is being touched’. Participants playfully ‘touch themselves and feel being touched, to connect with others on a screen’. All three orchestrations show that shared experience and dialogue on social touch can be mediated by playful smart cities tech- nologies in public spaces, but rely on design of mediated, intimate and exposed forms of ‘self-touch for social touch’, ambivalent relations, exposure of dialogue and hosting.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.System Engineerin
Insight and strategy in multiple cue learning
No full textIn multiple-cue learning (also known as probabilistic category learning) people acquire information about cue-outcome relations and combine these into predictions or judgments. Previous studies claim that people can achieve high levels of performance without explicit knowledge of the task structure or insight into their own judgment policies. It has also been argued that people use a variety of suboptimal strategies to solve such tasks. In three experiments we re-examined these conclusions by introducing novel measures of task knowledge and self-insight, and using ‘rolling regression’ methods to analyze individual learning. Participants successfully learned a four-cue probabilistic environment and showed accurate knowledge of both the task structure and their own judgment processes. Learning analyses suggested that the apparent use of suboptimal strategies emerges from the incremental tracking of statistical contingencies in the environment
Social Machines
No full textThe term ‘social machine’ has recently been coined to refer to Web-based systems that support a variety of socially-relevant processes. Such systems (e.g., Wikipedia, Galaxy Zoo, Facebook, and reCAPTCHA) are progressively altering the way a broad array of social activities are performed, ranging from the way we communicate and transmit knowledge, establish romantic partnerships, generate ideas, produce goods and maintain friendships. They are also poised to deliver new kinds of intelligent processing capability by virtue of their ability to integrate the complementary contributions of both the human social environment and a global nexus of distributed computational resources. This chapter provides an overview of recent research into social machines. It examines what social machines are and discusses the kinds of social machines that currently exist. It also presents a range of issues that are the focus of current research attention within the Web Science community
Detection of Cognitive Features from Web Resources in Support of Cultural Modeling and Analysis
No full textThe World Wide Web serves as a valuable source of culture-relevant information, which can be used to support cultural modeling and analysis activities. Part of the challenge in exploiting the Web as a source of culture-relevant information relates to the need to detect and extract information about beliefs, attitudes, and values from a variety of different resources. The Web thus features a rich variety of information resources, and these are seldom categorized with respect to the dimensions in which cultural analysts are interested. Exploiting the Web as a source of culture-relevant information therefore requires techniques and approaches that enable cultural analysts to extract relevant information and organize extracted content in various ways. In this paper, we outline an approach to assist cultural analysts in the extraction and organization of relevant information. We show techniques that can be used to extract information about the attitudes, beliefs, and values of individuals, and how this data can, in turn, be used to support cultural modeling and analysis
Strategies for smart building realisation
No full textSmart buildings, as a concept, is now becoming prominent in the vocabulary of Architects,
Engineers, Construction contractors, Technology companies, Property developers and the
Estate or facility management function within organizations. Public or private sector, smart
building goals are now prevalent in corporate strategies whenever new build or retrofit /
refurbishment is planned.
But there seems no common consensus on what this really means. The 1990's and 2000's
witnessed much hype around intelligent buildings concepts. However, in many instances the
hype never produced tangible results. Now the scene has changed. Sustainability and carbon
management is increasingly on the agenda of boardroom decision making and smart in
smart buildings seems to have a purpose, almost as a mission statement.
The lack of clear definitions on what encompasses a smart building and what is to be
expected when utilising a smart building whether as a solitary or group experience is causing
the supply side industry to throttle back the adoption rate. Value structures justifying
adoption are not clear in this early adaptor stage. Thus costs associated with the realisation of
a smart building are quite hard to justify. This is compounded by the rapid pace of technology
advancement and the continual refresh of new products and solutions that purport to provide
an improved functionality or better price to performance advantage.
Thus strategies for smart building realisation need to be formalised into industry accepted
frameworks which can be applied in many market sectors - or verticals, and which can be
applied in the context of small, medium and large buildings or campus premises. This paper
presents some thought leadership in this emerging area of expertise and provides concepts
that may form the fundamentals for a future framework.
The author provides a perspective as a professional in Consulting for the Engineering and
Construction industry with regards to integrating ICT systems into the built environment. ICT
infrastructure comprises much of the building blocks for smart building enablement alongside
automation and controls, electronic security and facility management applications.
Converged IP networks, integrated command and control rooms, utility smart metering and
integrated BMS (iBMS) enables smart building functionalities to be implemented. This paper
presents viewpoints across all of these subject areas in the context of policies, technologies
and obstacles
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Heuristics and representational change in two-move matchstick tasks
No full textInsight problems are problems where the problem solver struggles to find a solution until * aha! * the solution suddenly appears. Two contemporary theories suggest that insight problems are difficult either because problem solvers begin with an incorrect representation of the problem, or that problem solvers apply inappropriate heuristics to the problem. The relative contributions of representational change and inappropriate heuristics on the process of insight problem solving was studied with a task that required the problem solver to move two matchsticks in order to transform an incorrect arithmetic statement into a correct one. Problem solvers (N = 120) worked on two different types of two-move matchstick arithmetic problems that both varied with respect to the effectiveness of heuristics and to the degree of a necessary representational change of the problem representation. A strong influence of representational change on solution rates was found whereas the influence of heuristics had minimal effects on solution rates. That is, the difficulty of insight problems within the two-move matchstick arithmetic domain is governed by the degree of representational change required. A model is presented that details representational change as the necessary condition for ensuring that appropriate heuristics can be applied on the proper problem representation
Field evaluation of a deep learning-based smart variable-rate sprayer for targeted application of agrochemicals
No full textThe field performance of a newly developed novel smart variable-rate sprayer was evaluated. The sprayer uses convolutional neural networks (CNNs) for target detection and spot-applications of agrochemicals within potato (Solanum tuberosum L.) fields attacked by lamb's quarters (Chenopodium album L.) and corn spurry (Spergula arvensis L.) weeds and the early blight potato disease caused by Alternaria solani Sorauer. There was a non-significant effect of treatment conditions (i.e., cloudy, partly cloudy, and sunny) on spray volume during weed and diseased plant detection experiments (p-value = 0.93 and 0.75, respectively) showing that the smart sprayer performed well during all treatment conditions. There was a significant effect of spraying application techniques on the use of spray volume (p-value ≤ 0.05) reflecting a significant saving of spraying liquid during variable-rate application (VA). On average, the sprayer reduced spray volume by 47 and 51% for weeds and diseased plant detection experiments as compared to the values of chemicals applied at constant-rate application (CA), respectively, under all treatment conditions. The analysis of water-sensitive papers (WSP) data resulted in non-significant differences between CA and VA under all field conditions. These results suggest that this sprayer has a great potential to get a suitable spot application of agrochemicals and reduce the use of plant protection products thereby ensuring farm profits and environmental stewardship.Natural Science and Engineering Research Council of Canad
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