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Innovations in ISDN products for office communications

Willems, M. (author)

The digitization of the Dutch infrastructure towards an Integrated Digital Network (IDN) is currently taking place. Evolving from this IDN, public Integrated Services Digital Network (ISDN) connections are about to be introduced in Holland. ISDN-based PABXs and multifunctional workstations are already available. Moreover, starting January 1st...

master thesis 1987

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Verwerking van thermotrope L.C.P.'s en mengsels hiervan met vloeibaar isotrope polymeren: Literatuur scriptie

Willems, C. (author)

In het tweede hoofdstuk van deze literatuurscriptie wordt de structuur van vloeibaar kristallijne polymeren beschreven. Tevens wordt gegeven hoe thermotrope main chain L.C.P.'s zijn opgebouwd en wordt er het nodige over de molekuulstructuur verteld. In hoofdstuk 3 wordt de verwerking van L.C.P.'s besproken. Tenslotte komt in hoofdstuk 4 de...

student report 1989

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De vorming en stabiliteit van L.C.P. vezels in een thermoplastische matrix

Willems, Casper (author)

Bij dit onderzoek is geprobeerd meer duidelijkheid te krijgen omtrent de stabiliteit van L.C.P. vezels die kunnen ontstaan tijdens verwerking van L. C. P. /thermoplast mengsels. Daarnaast is onderzocht hoe de morfologie van deze mengsels tijdens extrusie ontstaat. Hierbij is vooral de rol van afschuiving bekeken. Er is gewerkt met Vectra A900 ...

master thesis 1990

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Dynamica van Kanaalsortering in Cellulaire Netwerken

Willems, R.H.J. (author)

Kanaalsortering is een “langzame” kanaaltoewijzingsmethode die kanalen afhankelijk van de verkeershoeveelheid aan de cellen toewijst. Dit afstudeerverslag bespreekt de dynamica van het kanaalsorteringsalgoritme. Er is een netwerk gesimuleerd dat bestaat uit twee cellen en waarin het verkeer varieert in de tijd. Het kanaalsorteringsalgoritme is...

master thesis 1997

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De optimale weg: Publiek private samenwerking bij infrastructuur

Willems, E. (author)

In de Leidse agglomeratie en in het gebied ten westen daarvan treedt een aantal uiteenlopende verkeersproblemen op. In algemene zin gaat het vooral om intensief autoverkeer dat op verschillende wegvakken congestie veroorzaakt en de leefbaarheid in de steden en dorpen aantast. De congestie belemmert ook de economische ontwikkeling. Meer in het...

master thesis 2002

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Fieldwork coastal engineering, Varna, Bulgaria

Wolters, H.J. (author), Melllink, B. (author), Van Velzen, G. (author), Verbruggen, W. (author), Van de Sande, S. (author), Simoons, E. (author), Krom, J.K. (author), El Hamdi, A. (author), Kalf, P. (author), Lin, C.H. (author), Willems, J. (author), Jelia, J. (author)

On the first day research is done at a beach north of Varna, which is called Sirius Beach. This research is presented in chapter 2. In the research the waterline and cross sections are compared with the previous years. The following is concluded: there is a strong seasonal variation which influenced the measured data, there is a decreasing trend...

student report 2011

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Analysis of Skill Development in Manual Ramp Tracking Tasks: Using a Feedforward Pilot Model

Willems, M.E. (author)

A study is performed analyzing the behavioral adaptation of pilots in skill based ramp tracking tasks performed with pursuit display. From data analyses of previous ramp tracking experiments an indication is found that pilots who repeatedly perform the same ramp tracking task show a high level of adaptation to characteristics of the control task...

master thesis 2012

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A Flood Defence Strategy for the Greater Concepción, Chile: Analysing, modeling and finding engineering solutions for the Biobio floods

Van Verseveld, H.C.W. (author), Weller, A.H.C. (author), Van Heemst, C. (author), Willems, J.A. (author)

Multidisciplinary Master Project In 2006, the Greater Concepción (Chile) experienced major flooding of the River Biobio with millions of dollars worth of damage as a consequence. This event was previously seen as a 1 in a 100 year event by the authorities. These conditions, however, are calculated to have a return period of about 20 years...

student report 2012

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Study of the Lower Cretaceous sands in the Van den Bosch Geothermal energy concession

Willems, C.J.L. (author)

Goal of this project was to get a better understanding of the producing formations in the two doublets in the Van den Bosch Geothermal energy concession in Bleiswijk. It can be concluded based on the GR logs in VDB-04, the lithologs, End Of Well reports, a Biostrat log in VDB-04 and the seismic interpretation that the first doublet (VDB-01 & VDB...

master thesis 2012

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On the Fabrication of a Graphene Resonator and Detection of the Resonance via Electrical Read-out: Towards a graphene permeability measurement

Willems, L.M. (author)

Not available because of confidentiallity

master thesis 2013

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Measuring time distribution of engineering test and production code

Willems, W.F.P. (author)

Testing software is an important factor in application development. Without proper testing, software can be unreliable and show failures with drastic consequences. There have been attempts to measure how much time is spent on testing but these methods are not accurate as they depend on incomplete or subjective data. An Eclipse plugin called ...

master thesis 2013

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Automated launch, landing and storage of a kite power system

Van Baelen, Dirk (author), Barendswaard, Sarah (author), Espinosa Chavez, Luis (author), Geleyns, Dieter (author), van Iwaarden, Reinier (author), Knols, Jan (author), van der Meijs, Josry (author), Thieme, Kristel (author), Willems, Tom (author)

The Kite Power Group of the Wind Energy Department of Delft University of Technology has developed a pumping kite system to harvest high altitude wind energy (HAWP). HAWP technology is one of many renewable energy solutions that are emerging in a time at which Earth’s non-renewable energy resources are becoming scarce. The kite power system...

bachelor thesis 2013

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Tuning the Teacher: To avoid misfitting interventions between teacher and student during a design project in primary school

Willems, B.D. (author)

This report is commissioned to examine what happens during a class dedicated to the project Designed by Kids (DBK) and to create a design solution that improves these classes. In the project DBK groups from primary school join in a design competition, guided by their teacher. During multiple classes they go through the following steps of the...

master thesis 2013

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Investigation of the sand losses which occur during construction of a closure dam in a tidal inlet

Willems, J.A. (author)

At the construction of 'Maasvlakte 2' in 2012, two sand closures were constructed. Sand is in most cases the most profiting construction material. The processes and the amount of sand losses which occur during the construction of a closure contain large uncertainties. In order to construct a closure, the production of sand has to be larger than...

master thesis 2013

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Geofort: The realisation of a Marauders map at the Geofort GeoExperience

Jonker, K. (author), Willems, H. (author), Pronk, M. (author), Chen, C. (author), Van der Spek, S.C. (author), Verbree, E. (author), Quak, W. (author)

This Geomatics project was carried out in commission of the Municipality of Rotterdam, Geofort Herwijnen and Facility Management of TU Delft. The research project and this report deliver important fundamental information for scientific/academic paper on Wifi tracking.

student report 2014

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The localisation of freight wagons on marshalling yards: Using multiple GPS measurements of stationary freight wagons to determine their location on a marshalling yard

Willems, H.R.S. (author)

Freight is moved by trucks on the road more and more, which is a worrying thing, especially for the environment. A very good alternative to transportation by trucks is transportation by trains. The Dutch government aims to increase the transportation of goods by train from 13% of all transportation to 20% of all transportation, but in reality,...

master thesis 2015

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Data streams in spreadsheets with reactive extensions

Willems, L. (author)

The amount of collected data increases exponentially and this exponential growth comes with a demand to analyze big volumes of data and to process the data fast and in real time. Business analysts have the expertise in the domain of the desired stream processing applications, but often lack the technical skills to create these kind of...

master thesis 2016

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Determine activity based on the classified identity of users by using Wi-Fi monitoring

Groeneveld, IJ.D.G. (author), Sulzer, R. (author), Theocharous, E. (author), Tryfona, M.S. (author), Willems, O.T. (author), Xu, Y. (author)

The Wi-Fi technologies are used in everyday life on numerous applications that detect the crowd information for commercial, security and other reasons. The Wi-Fi monitoring can be used for tracking people when they are moving along different access points. The results from the Wi-Fi monitoring can provide the location of the users in an area and...

student report 2016

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Coupled modeling of dynamic ice-structure interaction on offshore wind turbines

Willems, T. (author)

The offshore wind industry is growing at high pace and is already one of the major renewable energy sources in Europe. To support this growth, costs must be further decreased, amongst others by efficiently designing the support structure of the offshore wind turbines (OWT). This requires accurate prediction of environmental loading such as...

master thesis 2016

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Bayesian inference on the Heffernan and Tawn model: A reflection on a pragmatic multivariate extreme value model

Willems, T. (author)

master thesis 2016