64,952 research outputs found
Performance of grassed swale as stormwater quantity control in lowland area
Grassed swale is a vegetated open channel designed to attenuate stormwater through infiltration and conveying runoff into nearby water bodies, thus reduces peak flows and minimizes the causes of flood. UTHM is a flood-prone area due to located in lowland area, has high groundwater level and low infiltration rates. The aim of this study is to assess the performance of grassed swale as a stormwater quantity control in UTHM. Flow depths and velocities of swales were measured according to Six-Tenths Depth Method shortly after a rainfall event. Flow discharges of swales (Qswale) were evaluated by Mean- Section Method to determine the variations of Manningâs roughness coefficients (ncalculate) that results between 0.075 â 0.122 due to tall grass and irregularity of channels. Based on the values of Qswale between sections of swales, the percentages of flow attenuation are up to 54%. As for the flow conveyance of swales, Qswale were determined by Manningâs equation that divided into Qcalculate, evaluated using ncalculate, and Qdesign, evaluated using roughness coefficient recommended by MSMA (ndesign), to compare with flow discharges of drainage areas (Qpeak), evaluated by Rational Method with 10-year ARI. Each site of study has shown Qdesign is greater than Qpeak up to 59%. However, Qcalculate is greater than Qpeak only at a certain site of study up to 14%. The values of Qdesign also greater than Qcalculate up to 52% where it shows that the roughness coefficients as considered in MSMA are providing a better performance of swale. This study also found that the characteristics of the studied swales are comparable to the design consideration by MSMA. Based on these findings, grassed swale has the potential in collecting, attenuating, and conveying stormwater, which suitable to be applied as one of the best management practices in preventing flash flood at UTHM campus
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A literature review of the use of Web 2.0 tools in Higher Education
This review focuses on the use of Web 2.0 tools in Higher Education. It provides a synthesis of the research literature in the field and a series of illustrative examples of how these tools are being used in learning and teaching. It draws out the perceived benefits that these new technologies appear to offer, and highlights some of the challenges and issues surrounding their use. The review forms the basis for a HE Academy funded project, âPeals in the Cloudâ, which is exploring how Web 2.0 tools can be used to support evidence-based practices in learning and teaching. The project has also produced two in-depth case studies, which are reported elsewhere (Galley et al., 2010, Alevizou et al., 2010). The case studies focus on evaluation of a recently developed site for learning and teaching, Cloudworks, which harnesses Web 2.0 functionality to facilitate the sharing and discussion of educational practice. The case studies aim to explore to what extent the Web 2.0 affordances of the site are successfully promoting the sharing of ideas, as well as scholarly reflections, on learning and teaching
Communities of practice and virtual learning communities : benefits, barriers and success factors
A virtual Community of Practice (CoP) is a network of individuals who share a domain of interest about which they communicate online. The practitioners share resources (for example experiences, problems and solutions, tools, methodologies). Such communication results in the improvement of the knowledge of each participant in the community and contributes to the development of the knowledge within the domain. A virtual learning community may involve the conduct of original research but it is more likely that its main purpose is to increase the knowledge of participants, via formal education or professional development. Virtual learning communities could have learning as their main goal or the elearning could be generated as a side effect. Virtual communities of practice (CoPs) and virtual learning communities are becoming widespread within higher education institutions (HEIs) thanks to technological developments which enable increased communication, interactivity among participants and incorporation of collaborative pedagogical models, specifically through information communications technologies (ICTs) They afford the potential for the combination of synchronous and asynchronous communication, access to -and from- geographically isolated communities and international information sharing. Clearly there are benefits to be derived from sharing and learning within and outwith HEIs. There is a sense of connectedness, of shared passion and a deepening of knowledge to be derived from ongoing interaction. Knowledge development can be continuous, cyclical and fluid. However, barriers exist in virtual CoPs and these are defined by the authors and illustrated with quotes from academic staff who have been involved in CoPs. Critical success factors (CSFs) for a virtual CoP are discussed. These include usability of technology; trust in, and acceptance of, ICTs in communication; a sense of belonging among members; paying attention to cross-national and cross-cultural dimensions of the CoP; shared understandings; a common sense of purpose; use of netiquette and user-friendly language and longevity. The authors recognise the enormous potential for the development of CoPs through e-mail discussion lists and discussion boards but have themselves experienced the difficulties inherent in initiating such a community. These are corroborated and illustrated with text from interviews with academic staff. Much of the literature on CoPs emanates from outside Europe, despite the fact that e-learning articles have a large diffusion around Europe. The authors suggest further exploration of this topic by identifying and studying CoPs and virtual learning communities across EU countries
Using pattern languages to mediate theoryâpraxis conversations in design for networked learning
Educational design for networked learning is becoming more complex but also more inclusive, with teachers and learners playing more active roles in the design of tasks and of the learning environment. This paper connects emerging research on the use of design patterns and pattern languages with a conception of educational design as a conversation between theory and praxis. We illustrate the argument by drawing on recent empirical research and literature reviews from the field of networked learning
An architecture for organisational decision support
The Decision Support (DS) topic of the Network Enabled Capability for Through Life Systems Engineering (NECTISE) project aims to provide organisational through-life decision support for the products and services that BAE Systems deliver. The topic consists of five streams that cover resource capability management, decision management, collaboration, change prediction and integration. A proposed architecture is presented for an Integrated Decision Support Environment (IDSE) that combines the streams to provide a structured approach to addressing a number of issues that have been identified by BAE Systems business units as being relevant to DS: uncertainty and risk, shared situational awareness, types of decision making, decision tempo, triggering of decisions, and support for autonomous decision making. The proposed architecture will identify how either individuals or groups of decision makers (including autonomous agents) would be utilised on the basis of their capability within the requirements of the scenario to collaboratively solve the decision problem. Features of the scenario such as time criticality, required experience level, the need for justification, and conflict management, will be addressed within the architecture to ensure that the most appropriate decision management support (system/naturalistic/hybrid) is provided. In addition to being reliant on a number of human factors issues, the decision making process is also reliant on a number of information issues: overload, consistency, completeness, uncertainty and evolution, which will be discussed within the context of the architecture
Collaborative pedagogy and digital scholarship: a case study of 'Media Culture 2020'
This paper presents an educational case study of âMedia Culture 2020â, an EU Erasmus
Intensive Programme that utilised a range social media platforms and computer software
to create open, virtual spaces where students from different countries and fields could
explore and learn together. The multi-disciplinary project featured five universities from
across Europe and was designed to develop new pedagogical frameworks to encourage
collaborative approaches to teaching and learning in the arts. The main objective of
the project was to break down classroom and campus walls by creating digital learning
environments that facilitated new forms of production, transmission and representation of
knowledge. Media Culture 2020 was designed to pilot a novel mode of âblended learningâ,
demonstrating a number of ways in which âWeb 2.0â networked technologies might be
adopted by academics to encourage open and collaborative modes of practice. The project
utilised a number of social media platforms (including Facebook, Twitter, Google+, Google
Hangout, Google Docs and Blogger) to enhance the learning experiences of a diverse set
of students from different cultural and international contexts. In doing so, Media Culture
2020 enabled participants with a diverse range skills and cultural experiences to develop
new working practices that respond to the convergence of digital media and art, as well
as the internationalisation of media production and business, through the use of open,
interactive software
The Metadata Education and Research Information Commons (MERIC): A Collaborative Teaching and Research Initiative
The networked environment forced a sea change in Library and Information Science (LIS) education. Most LIS programs offer a mixed-mode of instruction that integrates online learning materials with more traditional classroom pedagogical methods and faculty are now responsible for developing content and digital learning objects. The teaching commons in a networked environment is one way to share, modify and repurpose learning objects while reducing the costs to educational institutions of developing course materials totally inhouse. It also provides a venue for sharing ideas, practices, and expertise in order to provide the best learning experience for students. Because metadata education has been impacted by rapid changes and metadata research is interdisciplinary and diffuse, the Metadata Education and Research Information Commons (MERIC) initiative aims to provide a virtual environment for sharing and collaboration within the extensive metadata community. This paper describes the development of MERIC from its origin as a simple clearinghouse proof-of-concept project to a service-oriented teaching and research commons prototype. The problems of enablers and barriers to participation and collaboration are discussed and the need for specific community building research is cited as critical for the success of MERIC within a broad metadata community
Redesigning work organizations and technologies: experiences from European projects
Currently distributed business process (re) design (resulting in components of business networks) basically relies on technical criteria. And that are the main purposes of most research projects supported by EC. Through the process of building a European Research Area, this means a strong influence in the national research programmes. However it is generally accepted that it should also take into account social criteria and aspects such as the quality of working life, or participation in decision processes. Those were some of the objectives of projects in de 80s decade, and framed some of the main concepts and scientific approaches to work organisation. The democratic participation of network and organisations members in the design process is a critical success factor. This is not accepted by everyone, but is based in sufficient case studies. Nevertheless, in order to achieve an optimization that can satisfying the requirements of agility of a network of enterprises, more complex design methods must be developed. Thus, the support to the collaborative design of distributed work in a network of enterprises, through a concurrent approaching business processes, work organisation and task content is a key factor to achieve such purposes. Increasing needs in terms of amounts of information, agility, and support for collaboration without time and space constrains, imposes the use of a computer-based model.business process; networks; decision processes; collaborative design;
The STIN in the Tale: A Socio-technical Interaction Perspective on Networked Learning
In this paper, we go beyond what have been described as 'mechanistic' accounts of e-learning to explore the complexity of relationships between people and technology as encountered in cases of networked learning. We introduce from the social informatics literature the concept of sociotechnical interaction networks which focus on the interplay between participants, technology, learning artefacts and practices. We apply this concept to case material drawn from transnational trade union education to identify and to analyse three aspects of networked learning: the local sociotechnical networks of learners; the construction of an overarching, global sociotechnical network for learning; and the evolution of such networks over time. Finally we identify issues for further research highlighted by these models
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