2,378 Works

Numerical Evaluation of Multicomponent Cation Exchange Reactive Transport in Physically and Geochemically Heterogeneous Porous Media

Javier Samper, Changbing Yang & Javier Samper
Sophisticated deterministic numerical models have been developed during the last two decades for the analysis of multicomponent reactive solute transport. Most of these models account for spatial heterogeneity by parameter zonation. Most stochastic analyses of reactive transport in physically and geochemically heterogeneous porous media consider a single reactive species. Attempts have been made recently for the stochastic analysis of multicomponent reactive species which rely on simplifying assumptions. Given the lack of theoretical stochastic analyses of...

Teaching Interpersonal Skills in International Design-Build Course

Jørgen Erik Christensen & Markku Karhu
This paper is based on our experiences and benefits from the international CDIO Co-operation between Denmark and Finland. Much work has been put into techniques to support group dynamics in an international environment and evaluation. Teaching methods for learning interpersonal skills have been developed in an interactive environment, where the students make their own experiences through active involvement in exercises in groups of two to four persons. The developed principles will be used in a...

The CDIO as an Enabler for Graduate Attributes Assessment in Canadian Engineering Schools

Bob Brennan & Ron Hugo
In this paper, we describe the process that is being followed at the Schulich School of Engineering to address the Canadian Engineering Accreditation Board’s new graduate attributes criterion, and show how the CDIO syllabus can play an integral role in this process.

The integrated curriculum of TU Delft Aerospace Engineering

Aldert Kamp
The new curricular framework Aerospace Engineering of Delft University of Technology has it all: state-of-the-art content that is interwoven with thematic design projects and trainings for personal and system building skills, international standard text books, up-to-date teaching methods, excellent facilities, with a focus on the aircraft and spacecraft throughout the bachelor and master programme. During his visit to the Faculty of Aerospace Engineering in April 2009 David C. Wisler of CDIO stated: “…This curriculum is...

Solfangere belyst ved matematik

Andreas Gram Sørensen, Casper Vestergaard Nissen, Jacob Stilling Nørregaard, Jens Steemann Kristensen, Lasse Tidemann, Søren Wrang, Carsten Schmidt & Connie Ørbæk
This Project uses mathematical methods to analyse solar collectors. There are made some assumptions to make things easier but without too many changes it can easily be made more realistic. The project ends up with a couple of methods for finding the total energy intake of a solar collector. Some of the methods are easier to handle but harder to calculate. Finally the project analyses some examples that relate to the real life and it...


Anne Katrine Falk, Michael B. Butts, Henrik Madsen, Johan Hartnack & Anne Katrine Falk
Ideally, real-time flood management decisions must be based on an understanding of the uncertainties and associated risks. It is therefore central for effective flood management tools to provide reliable estimates of the forecast uncertainty. Only by quantifying the inherent uncertainties involved in flood forecasting can effective real-time flood management and warning be carried out. Forecast uncertainty requires the estimation of the uncertainties associated with both the hydrological model inputs (e.g. precipitation observations and forecasts), model...

A concept for a bachelor program in electrical engineering

Henrik Niemann
The main concept for the Bachelor of Science in Engineering (BScE) in electrical engineering at Technical University of Denmark (DTU) will be described in this paper. A new curriculum was introduced from the start of the autumn semester in 2010. The curriculum was the result of more than one year of work with first description of competences followed by a more detailed description of the single main areas. Finally, the new study plan was implemented...

iPhone application to support commuters

Johan Van Beusekom, Lars Libak Pedersen, Peter Gammelgaard Poulsen & Jakob Eg Larsen
A great deal of today’s CO2 emissions comes from cars. A way to reduce these emissions is by making people drive together instead of going alone. With our project we are creating a simple application for iPhone that will allow people to carpool easily. The application is convenient since a smartphone is something that you always carry with you. The application lets the user create and request rides and announce this on Facebook or Twitter.

System Engineering in Senior-Design Capstone Projects

Kevin W. Rudd, Jennifer K. Waters, Duncan O'Mara, Christoph J. Flaherty & Michael Janssen
USNA is participating in the Systems Engineering Research Center RT-19 research project to develop systems engineering talent in the workforce. RT-19 is focused on developing solutions to real-world problems emphasizing the development and application of systems engineering skills and methods. Our RT-19 participation includes sixteen students, three departments, and four design projects. Each design project is developing a functioning artifact that could be delivered as a prototype. At CDIO, we will provide a full accounting...

Reverse Engineering as a Didactic Tool in Nano and Micro Technology

Erik Vilain Thomsen
This abstract describe a reverse engineering student exercise in the field of nano & micro technology where a pressure sensor is reverse engineered. It is demonstrated that reverse engineering is a very effective tool when teaching nano and micro technology.

Characterization of a hygro-regulated Wall Base Ventilation System for Treatment of Rising Damp in Historical Buildings

Vasco Freitas, Ana Sofia Guimarães & Ana Sofia Guimarães
The treatment of rising damp in the walls of historic buildings is very complex, due to the thickness and heterogeneity of the walls. The techniques traditionally used for dealing with this problem (such as watertight barriers, injection of hydrofuge products, etc.) have sometimes proved ineffective, and that is why it is necessary to find a new approach. In recent years, the Building Physics Laboratory at the Faculty of Engineering, University of Porto, has been conducting...

Cost-efficient lowest-energy multifamily houses in Vienna - Part 2: Measurement results and feedback of occupants

Thomas Bednar, Tanja Höfer & Tanja Höfer
During the last years research on the design of cost-efficient lowest energy houses had been finalized and in September 2006 the occupation of the first multifamily house started. The buildings are made out of steel-concrete with an EIFS-system, having a very high air-tightness and triple glazed windows. The ventilation system is equipped with a central heat recovery unit and is used to heat the flats. No radiators are installed in the rooms. Occupants can control...

Multidomain Modeling for the Simulation of Flow and Transport in a Neighborhood of an Underground Nuclear Waste Repository

Amel Sboui, Francois Clement, Jerome Jaffre, Michel Kern, Vincent Martin, Jean Roberts & Amel Sboui
In this presentation we are concerned with the problem of developing a numerical simulator for modeling flow and contaminant transport in the vicinity of an underground nuclear waste repository for use in performance assessment. Clearly reasonably accurate and reliable simulators are needed, but as performance assessment requires many simulations, it is also important that the simulators be very efficient. The simulations under consideration necessarily involve large scale calculations both in space and in time, and...

Energy efficient buildings in central Japan

Holger Wallbaum, York Ostermeyer & Holger Wallbaum
The building Standard of many Asian countries is low compared to the current standard in most European countries. However the very different cultural habits and resulting problems in designing an optimal construction often prevent the transfer of know how and technology. The project takes first steps to gather necessary data on user behaviour in first test buildings in central Japan that match the current European Standard.

Riemann Problems for a new class of equations modeling steam injection with applications in groundwater remediation.

Wanderson Lambert, Dan Marchesin & Wanderson Lambert
Groundwater contamination by organic materials and petroleum products is a preoccupying problem with environmental, social and health implications constituting a menace to our high-quality groundwater resources. An important remediation technique is steam injection. The model that we propose to describe this injection is a balance system, because it considers the terms of mass transfer and chemical reactions in the different physical phases. We have developed techniques to solve the Riemann problems associated to the balance...

CDIO - The steam engine powering the electric grid

Chresten Træholt, Joachim Holbøll, Ole Cornelius Thomsen & Claus Kjærgaard
This paper describes in detail the steam engine system with associated electronics that serves as basis for the Design-build project The steam engine combined with 3-phase electric power generation was selected for several reasons being in part: 1) historical 2) efficiency with respect to energy conversion 3) dimension of playing into the learning process 4) highly illustrative with respect to the real world 5) potentially several tasks suited for large groups In this energy system...

A Design Build Activity for a “Design Build” Course

Carsten Rode, Jørgen Erik Christensen & Claus Simonsen
This paper deals with the CDIO course “Design Build”, which is taught in the first semester at the Technical University of Denmark’s Department of Civil Engineering. The “Design Build” course revolves around the activity that the students should build a model house of their own during the course. The students have to conceive what are the requirements or a house, they should design a solution for it, and they should construct the house. Finally they...

EEG spectrogram data for "Speech-specific audiovisual integration modulates induced theta-band oscillations"

Alma Cornelia Lindborg, Martijn Baart, Jeroen Stekelenburg, Jean Vroomen & Tobias Søren Andersen
The data provided here are power spectrograms of electroencephalograms (EEG) from the two datasets referenced in the article "Speech-specific audiovisual integration modulates induced theta-band oscillations" by Lindborg, Baart, Stekelenburg, Vroomen, Andersen (submitted for publication in 2018).
The folder contains two data files and a README.txt file describing how to open the data files and access the data.
The EEG used to produce the spectrograms in the current study was originally recorded for two previously published studies: Baart,...

Developing first-line managers within their shared operational challenges


Impact of furnishing on room airflows

Lone H. Mortensen, Carsten Rode, Ruut Peuhkuri & Lone H. Mortensen
In building simulation it is common to use idealized empty rooms for simulation, but furnishing elements may cause local microclimates. These microclimates can be critical for instance if furniture is placed close to a poorly insulated external walls, where the external temperatures in the winter season may lead to condensation or high relative humidity on the internal side of the building envelope. Therefore it was important to investigate the influence of furniture on the airflow...

Self-regulating hydronic floor heating systems in low energy buildings

Henrik Karlsson & Henrik Karlsson
The awareness in society concerning environmental impacts due to the energy consumption in buildings is steadily growing. As a result, the general demand for buildings with low environmental impact, and especially the energy consumption, is very likely to increase even more in the future. Today’s building concepts will probably not be consistent with future demands for energy efficient buildings with an optimal indoor environment. Buildings with significantly lower energy demands for space heating can be...

Solar shading system based on daylight directing glass lamellas

Jacob Birck Laustsen, Inês Dionísio Palma Santos, Svend Svendsen, Steen Traberg-Borup, Kjeld Johnsen & Jacob Birck Laustsen
The overheating problems in office buildings must be solved with efficient solar shadings in order to reduce the energy demand for cooling and ventilation. At the same time the solar shading should not reduce the daylight level in the building on overcast days because it would result in a lower visual comfort level and increased energy consumption for lighting. The paper describes a new type of solar shading system based on variable lamellas made of...

Discontinous Galerkin Methods for the Shallow-Water Equations with bathymetric terms and dry areas

Karim DJADEL, Alexandre ERN, Serge PIPERNO & Karim DJADEL
In this paper, we develop Discontinuous Galerkin Methods to deal with the Shallow-Water Equations involving bathymetric terms and dry areas. Our major goals are on the one hand to preserve quiescent flows and, more generally, steady-states and on the other hand to ensure stability when the flow includes flooding and drying. Drawing on earlier ideas for Finite Volume Methods [Aud,Ber], we design two Discontinuous Galerkin Methods that preserve flows at rest. We investigate their acuracy...

Peer Instruction method in introductory classes in Mathematic

Eduarda Pinto Ferreira, Susana Nicola & Isabel Figueiredo
The teaching-learning process has been a constant target of studies, particularly in Higher Education, in consequence of the annual increase of new students. Considering the particular case of Engineering, it has been witnessed a rising concern with the active learning strategies and forms of assessment. Research has demonstrated that students learn more if they are actively engaged with the material they are studying. In this presentation we describe, present and discuss the techniques and the...

Community ergonomics applied to the implementation of a region-wide care coordination program

We present a case study of a care coordination program, proven effective in containing costs and improving quality at a large regional health system and its implementation at an independent community hospital participating in a federally-funded regional health IT-mediated care coordination project. We propose that, had tenets of community ergonomics been followed, the implementation and acceptance of the care coordination program would have been smoother and more expeditious.

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