154,692 Works

Occurrence and Distribution of Antibiotic Resistance in Artic Bacteria to Enviromental Antibiotic Exposure and Human Fecal Contamination

María Gómez Lozano, Rolando Saltini, Ingela Dahllöf, Maria E Granberg & Arne Villumsen
Sewage treatment plants are lacking in Sisimiut (Greenland). Thus, untreated wastewater from Sisimiut´s hospital containing active antibiotics is discharged directly into the sea. The effect of the antibiotic contamination in the marine ecosystem was investigated. Bacteria with acquired resistance towards several antibiotics were found in the contaminated site, including potential human pathogens. The presence of bacteria with acquired antibiotic resistance is a problem for both the marine ecosystem and human health, as well as a...

Nano Imprint Lithography, a green technology

Andreas Bundgaard Fønss, Mads Bjerregaard Laursen, Martin Uhd Grønbech, Simone Tanzi, Anders Kristensen & Peter Bøggild
In the 3-week term June 2010 we have worked with Nano Imprint Lithography (NIL) in the course 33422. NIL is a nonconventional lithographic technique for high-throughput patterning of polymer nanostructures at great precision and at low costs. NIL relies on direct mechanical deformation of the resist material and can therefore achieve resolutions beyond the limitations set by light diffraction or beam scattering that are encountered in conventional techniques. In this presentation we will present NIL...

Modifikationer af vindscanner til placering i mølle-hub

Emil Holm Knudsen & Niels Henrik Mortensen
Projektet omhandler indledende design facer i forbindelse med udviklingen af en ny type vindscanner. Disse vindscanner skal i fremtiden være med til at optimer energiproduktionen fra vindmøllerne. Opgaven er skrevet som bachelor projekt i indeværende semester i samarbejde med DTU Risø og IPU. I opgaven og præsentationen vil følgende emner blive berørt: Kort introduktion til principperne bag vindscanning Anvendelsesmuligheder / perspektiv for scanning af vind Problematikken i nuværende system. Samt Krav og ønsker til ny...

Magnetic Room Temperature Cooling Using Stacks of Gadolinium Plates

Kasper Wigh Lipsø, Luise Theil Kuhn, Christian Bahl & Nielsen
Magnetic refrigeration is an alternative to conventional refrigeration. Where conventional refrigeration uses vapor compression cycles, magnetic refrigeration is based on the magnetocaloric effect, i.e. the property of magnetic materials to change temperature when exposed to a changing magnetic field. The technology is currently used for low temperature cooling (<10K). By implementing stacks of magnetic plates instead of powder, it can be optimized to yield a more energy efficient room temperature cooling than conventional refrigeration. This...

Light Directional Elements (LDIR)

Kasper Bayer Frøhling, Mette Funding La Cour, Mohammed Jassim Ismaiil Al-Abaddi, Søren Vang Fischer, Peter Bøggild & Anders Kristensen
Using the light of the sun as the primary source for illuminating offices and houses is one of the most effective ways of saving energy. The problem, which many knows, is that on a sunny summer day, the light may be too intense to be used directly. Reading a book if the rays of the sun hits directly on the pages can be impossible, not to mention the problem of seeing what is happening on...

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.

Investigation of MSWI Fly Ash for Utilization in Mortar

Charlotte Rask Jensen, Heidi Serup & Gunvor Marie Kirkelund
Fly ash from municipal solid waste incineration (MSWI) is classified as hazardous waste. However, the fly ash has showed pozzolanic behavior, and therefore it has been investigated whether MSWI fly ash may partly substitute cement in Portland cement mortar after upgrading the MSWI fly ash by electrodialytical removal of metals and salts. The influence of MSWI fly ash according to workability, strength and heat evolution has been investigated. It was shown that MSWI fly ash...

Intelligent Energy System for Small Scale Alternative Intermittent Power Sources

Christian Sonne, Martin Drejer & Preben Nyeng
Design and implementation of an IES for an existing alternative intermittent energy structure, coupled with small scale energy storage system. System will intelligently scale down scalable power drains, and disable non-essential non-scalable drains to ensure power availability for essential systems. Non-volatile logging of resource-data for later analysis will also be provided.

Improving Wind Power Forecasts by considering the Spatio-Temporal structure of Wind Power Forecast Errors

Olivier Corradi & Henrik Madsen
With the ongoing increase in installed wind power production and due to the variability of this resource, forecasting the production is becoming a critical process. So far, forecasts have usually been generated individually for a given site of interest (either a wind farm or a group of wind farms). However, it is intuitively expected that owing to the inertia of meteorological forecasting systems, a forecast error made at a given point in space and time...

Green lean

Ahmad Zobajir Azizi & Carl Christian Lassen
green lean

Estimation and Evaluation of the Effects of Future Implementation of GPS-based Bus Priority at Traffic Signals in Copenhagen

Camilla Morellato, Allan Larsen, Martina Zabic & Mathias Sdun
According to the Copenhagen Climate Plan, 10% of the CO2 reductions the Municipality of Copenhagen plans to reach by 2015 will be achieved through measures in the transport sector. One of the ways to reach the target is to enhance public transport, so that its attractiveness will turn some car drivers into public transport users. The idea of the project is to use GPS technology to provide buses with priority at traffic signals, which will...

Estimation and Evaluation of the Effects of Future Implementation of GPS-based Bus Priority at Traffic Signals in Copenhagen

Camilla Morellato, Allan Larsen, Martina Zabic & Mathias Sdun
According to the Copenhagen Climate Plan, 10% of the CO2 reductions the Municipality of Copenhagen plans to reach by 2015 will be achieved through measures in the transport sector. One of the ways to reach the target is to enhance public transport, so that its attractiveness will turn some car drivers into public transport users. The idea of the project is to use GPS technology to provide buses with priority at traffic signals, which will...

Energy Harvesting: Computing without Batteries

Johan Pedersen, Jan Madsen & Thomas Sørensen
Wireless sensor networks, where a large number of small sensing and computing devices are deployed in the environment, enables remote sensing and monitoring of climate and environmental conditions within a potential large area which can be in the outdoor environment as well as indoor in buildings. When applied in buildings, a more efficient monitoring of temperature, airflow, lighting, humidity, etc. will not only allow a better indoor climate, but also reduce the amount of energy...

Energy harvesting from raindrops

Eddi Søgaard, Henrik Teglborg & Thomas Glasdam Jensen
In this paper we will investigate which parameters are important for energy harvesting from raindrops through a piezo based sensor. We will make a chamber filled with fluid or gas and a membrane to cover the chamber. Then connect the piezo based pressure sensor to the chamber so we can register how much pressure/energy can be gained from a drop. Then we will investigate which parameters are important such as: the drop height, drop frequency,...

Efficiency and feasibility of biological grey wastewater treatment facilities in Virklund, Denmark

Sidsel Hansen & Eva Eriksson
Reuse of water is almost not used in Denmark, due to fear of contamination and low water prices. In this project two existing grey wastewater treatment facilities in Denmark are used as case study. Water samples are analysed and the economic feasibility are evaluated. There are advantages by reusing water: Lower water use and potential moneysaving. But there are also disadvantages: Bacterial growth, high number of particles and laws that need to be taken into...

Efficiency and feasibility of biological grey wastewater treatment facilities in Virklund, Denmark

Sidsel Hansen & Eva Eriksson
Reuse of water is almost not used in Denmark, due to fear of contamination and low water prices. In this project two existing grey wastewater treatment facilities in Denmark are used as case study. Water samples are analysed and the economic feasibility are evaluated. There are advantages by reusing water: Lower water use and potential moneysaving. But there are also disadvantages: Bacterial growth, high number of particles and laws that need to be taken into...

Development of a sustainable fermentation platform

Martin Malthe Borch & Anne Belinda Thomsen
Risøs pretreatment expertice and methods have been used to extract sugars and nutrients from agriculturalwaste. screening have been done with algae and yeast species to test this medium for the industrial potential. further analysis of the nutrient content have been made.

Design and Process Development of Micro System for Pesticide Analysis

Christoffer Mølleskov Pedersen, Karl Elkjær & Maria Tenje
In this project we designed the masks and the fabrications processes for fabricating a biochip, used to detect particle transport trough a membrane. In the future this chip could be used to measure under which conditions different pesticides enter the cells of the human body. Besides pesticides it could also be interesting to see if nano particles pass through.

CO2 Capture Technologies to Combat Climate Change

Bjørn Maribo-Mogensen, Anker Jensen & Georgios Kontogeorgis
The majority of scientists, politicians, and organizations agree that climate change is one of the biggest challenges for the 21st century. Reducing the CO2 emissions requires immense efforts in many areas. To combat climate change Carbon Capture and Storage (CCS), where CO2 is captured from the flue gas of power plants and then stored in geological structures must be applied on a massive scale. The poster summarizes the investigations done by the author since primo...

Characterization of nanoporous gold electrodes

Erol Zekovic & Xueling Quan
This project investigates the use of nanoporous gold microelectrodes for detection of heavy metals in ground water. By the use of electrochemistry, the change in impendance by adjusting parameters as etching time and poresize, is determined.

Capturing of CO2 from flue gasses using ionic liquids

Anita Godiksen & Rasmus Fehrmann
Separating and capturing CO2 from flue gas is a challenge the World must overcome in near future. Ionic liquids are a promising solution. These ionic compounds have melting points below 100 degrees celcius, and show interesting CO2 absorption, worth investigating. This project concerns model calculations on specialized ionic liquids currently being sythesized in an ongoing research project at DTU Chemistry and inspires to design the best Ionic Liquids suitable for effective and economic CO2 capturing....

Bulk disc resonators for heavy metal detection in drinking water

Jakob Lyager Rasmussen & Zachary James Davis
The project is, threw micro mechanical resonating silicon discs to monitor concentrations of heavy metals in drinking water.

Building Intelligence Into Intelligent Buildings

Andreas Møller, David Emil Lemvigh & Christian D Jensen
Most modern "Intelligent" buildings is focused on enhancing the users control when interacting with the building, and simplifying this interaction. BIIIB is different because it analyses its users and then take over the control of the building based on this analysis. We have implemented a simple AI which controls the lighting in the the ground floor hallway of building 322. In this experiment we have managed to cut the time the lamps are turned on...

Bluepower Wave Converter

Bjarke Eltard-Larsen, Jacob Torstein Henckel, Michael Paludan-Müller Nylykke, Nikolaj Purup, Sophie Frøland & Knud Erik Meyer
Converting the energy of the ocean has been a challenge for decades. In this project we have been working with this problem in a whole new way. The goal of the project has been to implement the Danfoss Poly Power elastomer in one of the existing wave energy converting systems.

Bluepower Wave Converter

Bjarke Eltard-Larsen, Jacob Torstein Henckel, Michael Paludan-Müller Nylykke, Nikolaj Purup, Sophie Frøland & Knud Erik Meyer
Converting the energy of the ocean has been a challenge for decades. In this project we have been working with this problem in a whole new way. The goal of the project has been to implement the Danfoss Poly Power elastomer in one of the existing wave energy converting systems.

Registration Year

  • 2011
    154,692

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Affiliations

  • French National Centre for Scientific Research
    38
  • Duke University
    21
  • University of British Columbia
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  • The University of Texas at Austin
    16
  • Centre for Ecology & Hydrology
    13
  • UK Centre for Ecology & Hydrology
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  • University of Montpellier
    10
  • University of Sheffield
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