Implementing Computer-Interpretable CSCL Scripts with Embedded Assessment

2011 ◽  
pp. 261-277 ◽  
Author(s):  
Eloy D. Villasclaras-Fernández ◽  
Juan I. Asensio-Pérez ◽  
Davinia Hernández-Leo ◽  
Yannis Dimitriadis ◽  
Luis de la Fuente-Valentín ◽  
...  
Keyword(s):  
Life Cycle ◽  
Design Patterns ◽  
Mediated Learning ◽  
Computer Supported Collaborative Learning ◽  
Embedded Assessment ◽  
Computer Mediated ◽  
Cscl Scripts ◽  
Whole Life Cycle ◽  
Assessment Activities

This chapter presents a proposal for a pattern-based approach for Computer Supported Collaborative Learning (CSCL) scripts that aims to integrate learning and assessment activities. After a general presentation of the approach, the chapter will focus on a case study which covers the whole life-cycle of a CSCL script with embedded assessment activities. The case, which took place in the context of a computer-mediated learning environment, includes the design, instantiation, enactment and evaluation of the script. Focusing on the relevance of the assessment activities which are integrated in the script, the case study illustrates the complexity of formalizing computer-interpretable CSCL scripts with embedded assessment. The usage of design patterns is proposed as a means of providing support and hiding the complexity of creating and enacting such scripts. The case study shows the feasibility of this approach, and provides information about the requirements of CSCL script authoring tools to employ assessment and learning design patterns to support non-expert designers in those tasks.

A Study for the Measurement of Environmental Impact Resulting From Railway Construction

2011 ◽  
Author(s):  
Yasutomo Morita ◽  
Kenji Shimizu ◽  
Hirokazu Kato ◽  
Naoki Shibahara ◽  
Toshihiro Yamasaki
Keyword(s):  
Life Cycle ◽  
Co2 Reduction ◽  
Environmentally Friendly ◽  
Rail Transport ◽  
Transportation Mode ◽  
Co2 Gas ◽  
Low Emission ◽  
Global Concern ◽  
Whole Life Cycle

This study shows how to measure CO2 emissions caused by railways during its life span from construction to disposal. It is now a common global concern that CO2 reduction is vital for conserving the global environment. Amidst this growing awareness, rail transport has attracted significant attention as an environmentally-friendly transportation mode due to its low emission of CO2 gas. But in many studies the amount of CO2 is calculated only during operation and doesn’t include emissions during the phase of construction of related infrastructure and rolling stocks. Rail transport can not be a truly environmentally-friendly transportation mode if it isn’t proven to emit less gases compared with other modes during a modes whole life cycle. In this paper, we introduce the method to calculate CO2 emission from the construction of infrastructure with the application of Life Cycle Assessment (LCA) and the result of a case study.

scholarly journals On the Learning of geometric concepts using Dynamic Geometry Software

RENOTE ◽  
2004 ◽  
Vol 2 (1) ◽  
Author(s):  
Alex Sandro Gomes ◽  
Gerard Vergnaud
Keyword(s):  
Problem Solving ◽  
Dynamic Geometry ◽  
Theoretical Framework ◽  
Dynamic Geometry Software ◽  
Mediated Learning ◽  
Computer Mediated ◽  
Geometric Concepts ◽  
Geometrical Concepts ◽  
Geometry Learning

Many results on computer mediated geometry learning conclude about different heuristic approaches to problem solving with Dynamic Geometry Software (DGS). However, little is described concerning conceptualization process. We used a theoretical framework built upon constructivist foundations for analyzing mediated learning of specific geometrical concepts. Our point is illustrated in a case study in which we analyzed studentsí interaction with a DGS. Our results points to a clear mapping of potential conceptualization of geometry in software using.

scholarly journals Prediction of Life Cycle Carbon Emissions of Sponge City Projects: A Case Study in Shanghai, China

2018 ◽  
Vol 10 (11) ◽  
pp. 3978 ◽  
Author(s):  
Xiaohu Lin ◽  
Jie Ren ◽  
Jingcheng Xu ◽  
Tao Zheng ◽  
Wei Cheng ◽  
...  
Keyword(s):  
Life Cycle ◽  
Carbon Emissions ◽  
Carbon Emission ◽  
Carbon Sink ◽  
Carbon Sinks ◽  
Sponge City ◽  
Study Results ◽  
Accounting Model ◽  
Whole Life Cycle

In recent years, China has been vigorously carrying out the planning and implementation of Sponge City. Since the implementation of Sponge City projects involves substantial materials and energy consumption, it is significant to account corresponding carbon emissions and sinks. The existed studies about carbon emission of stormwater management measures, however, are not able to take the whole life cycle and different facilities into consideration. Therefore, this study develops a comprehensive accounting model based on Intergovernmental Panel on Climate Change (IPCC) guidelines and life cycle assessment (LCA) method to predict carbon emissions and carbon sinks of Sponge City projects more comprehensively and accurately. The model is applied to an actual residential community in Shanghai as a case study. Results show that the total indirect carbon emission is estimated to be 774,277 kg CO2 eq during a 30-year lifespan, among which carbon emissions from operation and maintenance phases are 2570 kg CO2 eq/year and 7309 kg CO2 eq/year, respectively, both directly proportional to the service life of the facilities. Three kinds of achievable carbon sinks are carbon sequestration in green space (5450 kg CO2 eq/year), carbon sink from rainwater utilization (15,379 kg CO2 eq/year) and carbon sink from runoff pollutant removal (19,552 kg CO2 eq/year). Carbon neutrality is expected to be reached after approximately 19 years. The established carbon emission accounting model can contribute to better planning and construction of Sponge City in China and enhance further energy conservation and carbon emission reduction.

scholarly journals The importance of embodied energy in carbon footprint assessment

2014 ◽  
Vol 32 (1) ◽  
pp. 49-60 ◽  
Author(s):  
Zaid Alwan ◽  
Paul Jones
Keyword(s):  
Life Cycle ◽  
Carbon Footprint ◽  
Embodied Energy ◽  
Total Carbon ◽  
Design Team ◽  
Content Type ◽  
Operational Energy ◽  
The Impact ◽  
Whole Life Cycle

Purpose – The construction industry has focused on operational and embodied energy of buildings as a way of becoming more sustainable, however, with more emphasis on the former. The purpose of this paper is to highlight the impact that embodied energy of construction materials can have on the decision making when designing buildings, and ultimately on the environment. This is an important aspect that has often been overlooked when calculating a building's carbon footprint; and its inclusion this approach presents a more holistic life cycle assessment. Design/methodology/approach – A building project was chosen that is currently being designed; the design team for the project have been tasked by the client to make the facility exemplary in terms of its sustainability. This building has a limited construction palette; therefore the embodied energy component can be accurately calculated. The authors of this paper are also part of the design team for the building so they have full access to Building Information Modelling (BIM) models and production information. An inventory of materials was obtained for the building and embodied energy coefficients applied to assess the key building components. The total operational energy was identified using benchmarking to produce a carbon footprint for the facility. Findings – The results indicate that while operational energy is more significant over the long term, the embodied energy of key materials should not be ignored, and is likely to be a bigger proportion of the total carbon in a low carbon building. The components with high embodied energy have also been identified. The design team have responded to this by altering the design to significantly reduce the embodied energy within these key components – and thus make the building far more sustainable in this regard. Research limitations/implications – It may be is a challenge to create components inventories for whole buildings or for refurbishments. However, a potential future approach for is application may be to use a BIM model to simplify this process by imbedding embodied energy inventories within the software, as part of the BIM menus. Originality/value – This case study identifies the importance of considering carbon use during the whole-life cycle of buildings, as well as highlighting the use of carbon offsetting. The paper presents an original approach to the research by using a “live” building as a case study with a focus on the embodied energy of each component of the scheme. The operational energy is also being calculated, the combined data are currently informing the design approach for the building. As part of the analysis, the building was modelled in BIM software.

Online Interaction Styles

2010 ◽  
pp. 138-149
Author(s):  
Dazhi Yang ◽  
Jennifer C. Richardson
Keyword(s):  
Learning Environments ◽  
Online Courses ◽  
Mediated Learning ◽  
Online Interaction ◽  
Interaction Style ◽  
Interaction Styles ◽  
Computer Mediated ◽  
Vicarious Interaction ◽  
Active Interaction

Past studies indicate that students demonstrate different online interaction styles, which consist of the ways or habits students acquire knowledge from computer-mediated discussions (Sutton, 2001). Such interaction styles include the active interaction style (Beaudion, 2002), the vicarious interaction style (Sutton, 2001), and the mixed or balanced-interaction style. The purposes of this chapter are to: (1) examine relative studies on students’ online interaction styles; (2) propose a hypothesis that students’ online interaction styles can change during the course of computer-mediated discussion; (3) conduct a case study on students’ online interaction styles to test the hypothesis. This chapter reviews current issues related to students’ online interaction styles. It offers practical suggestions on the design of online learning environments, instructor’s role in online courses, and educational tools to facilitate students in adapting to more active interaction styles in computer-mediated learning environments.

Evaluating the Learning Effectiveness of Collaborative Problem Solving in Computer-Mediated Settings

2009 ◽  
pp. 151-167
Author(s):  
Ourania Petropoulou ◽  
Georgia Lazakidou ◽  
Symeon Retalis ◽  
Charalambos Vrasidas
Keyword(s):  
Problem Solving ◽  
Learning Environments ◽  
Evaluation Process ◽  
Collaborative Problem Solving ◽  
Learning Effectiveness ◽  
Computer Supported Collaborative Learning ◽  
Collaborative Problem ◽  
Problem Solving Environments ◽  
Computer Mediated

here is a growing need for systematic evaluations of computer-supported collaborative learning environments. The present chapter focuses on the evaluation of the learning effectiveness of the interactions that take place in computer-supported problem solving environments. This chapter emphasizes the need for supporting evaluators of such environments with holistic evaluation conceptual frameworks and tools that can facilitate the analysis of data gathered during the evaluation process. We discuss in detail such a holistic framework which has been tested through a primary education case-study.

A new methodology for risk evaluation taking into account the whole life cycle (LCRA): Validation with case study

2012 ◽  
Vol 90 (4) ◽  
pp. 295-303 ◽  
Author(s):  
Lynda Aissani ◽  
Florent Jabouille ◽  
Jacques Bourgois ◽  
Patrick Rousseaux
Keyword(s):  
Life Cycle ◽  
Risk Evaluation ◽  
Whole Life Cycle

Usability Demonstration of the G.EN.ESI Eco-Design Platform: The Cooker Hood Case Study

2015 ◽  
Author(s):  
Michele Germani ◽  
Marco Mandolini ◽  
Marco Marconi ◽  
Marta Rossi
Keyword(s):  
Life Cycle ◽  
Design Process ◽  
Environmental Sustainability ◽  
Design Tools ◽  
Design Strategies ◽  
Design Concepts ◽  
Traditional Design ◽  
Design And Manufacture ◽  
Whole Life Cycle

Due to the increasing pressure of legislations and market, the environmental sustainability is becoming a key competitive factor for companies. In specific markets, as the Northern Europe one, customers are very careful on the quality and sustainability of products, thus companies has to design and manufacture green goods. In this context, there is a strong need of effective design tools and platform which allows to configure products applying the life cycle paradigm and with the “environment on mind”. Currently in the market there are only few examples of products designed taking into account the eco-design concepts. In particular, for mechatronic or energy using products only the use phase is usually considered and all the re-design strategies aim to reduce the energy consumption. This is essentially due to the fact that there is a lack of tools and design platforms, which are easy to use and well integrated with the traditional design tools and with the design processes of companies. This paper wants to demonstrate the usefulness of a set of interoperable eco-design tools, the G.EN.ESI platform, in supporting the re-design of a mechatronic product. The proposed case study, realized in collaboration with an Italian leading company in the sector of household appliances, focuses on the improvement of a domestic cooker hood with the final objective to obtain a more sustainable product. The in-depth experimentation, for the duration of more than 3 months, involved different stakeholders within the company (designers, environmental expert, etc.), with the aim to validate the G.EN.ESI platform tools in different phases of the re-design process. The case study showed that the use of the platform has supported the company in the identification of the environmental hot-spots and during the product re-design phase, considering the whole life cycle. The re-engineered cooker hood exhibits relevant improvements in the most important environmental and economic indicators (environmental impact, energy efficiency, disassemblability, recyclability, etc.). Also a detailed analysis of the platform usability has been performed in order to measure if the tools completely fulfil the expectations of the final users. Finally, the level of integration within the company processes has been evaluated with a dedicated questionnaire. The results of these last analyses showed that the G.EN.ESI platform is appropriate to support a company to improve the sustainability of their products without the needs to heavily alter the traditional design process.

scholarly journals NEGRAFICKÁ DATA A JEJICH STRUKTURA PRO VYUŽITÍ LCA V BIM

2021 ◽  
Vol 7 (01) ◽  
pp. 16-26
Author(s):  
Michal Brandtner
Keyword(s):  
Life Cycle ◽  
Data Structure ◽  
Input Data ◽  
Information Model ◽  
Model Data ◽  
Building Information Model ◽  
Graphic Information ◽  
Building Information ◽  
Whole Life Cycle

The article deals with the data structure for the purpose of Life Cycle Assessment (LCA) of buildings using the Building Information Model (BIM). LCA is a method that can be used to demonstrate the suitability of proposed materials, structures, or buildings in terms of their whole life cycle and its environmental impact. For the LCA evaluation it is crucial to obtain life cycle inventory (LCI) input data. The aim of the article is to define a BIM data structure for LCI purposes. The new methodology is based on standardization of non-graphic information model data structure called SNIM. Advantages of the proposed methodology have been demonstrated on the case study. These results are useful for expanding the BIM model with new data necessary for further LCA calculations.

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