Colophon Contents

Editor’s Address: Pedel A word from the editor ...... 2 W-hoog 4.105 Postbus 513 A word from the chairman...... 3 5600 MB Eindhoven Tel: (040) 2472761 Hora Est 1991-1996 ...... 4 Fax: (040) 2447355 Email: [email protected] From the old box 1 ...... 7

AES Lab ...... 8

Editor: Hora Est 1996-2001 ...... 12 Rudi Steenbakkers Puzzle...... 14

Cell and Tissue Lab...... 16 The Pedel is the magazine of Hora Est, the society of Ph.D. Hora Est 2001-2006 ...... 18 students of the departments of Mechanical Engineering and From the old box 2 ...... 22 Biomedical Engineering, Technische Universiteit Eindhoven. DCT Lab ...... 26

Lustrum Gala...... 28 The Pedel appears as often as possible! Hall of Fame...... 30

1 A word from the editor

Rudi Steenbakkers

Welcome, members and suporters, and especially former members of Hora Est,

According to a Dutch proverb, we should not pull old cows out of the ditch. It means that we should not bring unpleasant memories back to mind. A quick google taught me that this saying Another thing that co-editor Martijn Cox originated from farmers occasionally and I noticed, when going through the having to pull a dead cow out of a ditch. old Pedels, is that our magazine changed Who could have thought that overlooking considerably over the years. The cover obvious solutions, like buidling a fence was first printed in black on a colored between the meadow and the ditch, would piece of paper. Later someone came up help to enrich our language? with a very arty (and weird, if you ask me) brownish cover. Then it changed Anyway, bringing back memories is also back, until in 2004 the current cover was what this special ‘historical’ edition of the designed. Pedel is about. However, unlike the proverbial old cows, many of these The content of the Pedel has changed memories are quite nice. There have as well. During certain years, members been hard times as well, though, like the were very active in writing articles about heroic struggle of Hora Est members for all kinds of subjects, from scientific stuff better office chairs or the shameful via the well known fantasy author Tolkien behavior of Saint Nicolas and Black to personal holiday adventures. Pete. You can read about these things Accordingly, the three guest authors for in the ‘from the old box’ sections, using this Pedel, Carlijn Bouten, Frank a Dutch expression again. Swartjes, and Anita Mol, were very enthusiastic about writing their articles Talking about languages, did you know on the history of Hora Est. that the Pedel used to be entirely in Dutch? During the first five years of Hora I wish you all lots of fun reading this Pedel Est, there weren’t as many foreign PhD and hope to see you at the Symposium. students as nowadays. Carlijn Bouten wrote her account of those years in Greetings, Dutch, so the history of Hora Est is reflected in this Pedel. Rudi 2 A word from the chairman

Roel Merry

Hello everybody,

As chairman of the current board, it is my pleasure to welcome you to to this Pedel which is made in honor of the third lustrum of Hora Est.

Fifteen years of Hora Est may of course During the last couple of years the not pass by unnoticed, therefore two number of members of Hora Est grew special events are organized to celebrate significantly. At the moment Hora Est has this special birthday. The first took place 129 members, consisting of PhD on May 19, when a gala dance was students and supporters from the organized. An impression of this evening academic and technical staff. As a PhD will be given further on in this Pedel. The association we organize both informative second event is the mini symposium, in and social events. The informative events which four speakers will try to answer include presentations by or excursions the question ‘PhD in a knowledge to possible future employers, information economy: evolution or revolution?’ After about ways to print the thesis, different the symposium, there will be a drink kinds of courses, etc. Of course, also during which there will be an opportunity several social events are organized. to take a tour through three different These include drinks, sometimes with a laboratories of which an introduction is special theme such as a New Year’s also included in this Pedel. In 1991 Hora drink or a movie drink, a yearly Est was founded for PhD students of the barbecue, a Christmas lunch, a squash department Mechanical Engineering, as competition, and many more. from 2001 also PhD students from the department of Biomedical Engineering Finally I hope you all enjoy the mini- joined the association. In this pedel you symposium, the tours and of course the will be taken on a small tour through the possibility to catch up with other (former) history of Hora Est in three parts, each Hora Est members. written by an old board member of one of the three past lustra. A puzzle is Best wishes, included with which you can test your memory by matching names to some Roel Merry pictures from the archive. 3 Stoom afblazen (Hora Est 1991 - 1996)

Carlijn Bouten zo’n halszaak geweest dat ik in augustus zou starten en niet in september? Tegenwoordig weet ik dat dat een boekhoudkundige kwestie is, maar leg dat maar eens uit aan een startende AIO.

Ik belandde op de kamer van mijn Tot mijn schrik moet ik constateren dat begeleider die nog wel een tijdje weg het Hora Est lustrum ook mijn 3e lustrum zou zijn. Mijn promotor, gealarmeerd is en ik al 15 jaar aan de TU/e door secretaresse, stak zijn hoofd om verbonden ben. Op de dag af zelfs. Wie de hoek van de deur om te zien of ik blijft er nog zo lang hangen bij zijn goed terecht gekomen was. Ja dus. eerste werkgever? En weg was-ie weer. En toen mocht ik lezen. Uren, dagen, weken zelfs. En De foto van de piepjonge Carlijn op mijn ja, ook schrijven. God, die goede oude toegangspasje van de faculteit tijd… Ik miste wel het grote lab waarin Werktuigbouwkunde uit 1991 zal op ik in Amsterdam werkte, maar dat is een ouderwetse wie-is-wie quiz op het uiteindelijk helemaal goed gekomen. MaTe-feest niet misstaan. Ik hoor ze nu al ooooch roepen: een brilloos, Na enkele dagen kwamen er nieuwe rimpelloos, energiek jong meisje met hoofden om de hoek van de deur. De streepjestrui, dat ze wel eens even een buren waren nieuwsgierig geworden. poepje zou laten ruiken daar in Het was koffietijd en of ik zin had om Eindhoven. Alsof het niks was. Maar mee te gaan. “Eindelijk de kantine,” ja, ik kon met Matlab omgaan, en dacht ik, want ik lunchte nog steeds daarmee was iedereen overtuigd van wandelend buiten. Maar nee hoor, er mijn kunnen. was een heuse koffie ruimte in het Biomechanica-lab. Er stonden dan wel Braaf had ik Lia (Neervoort) opgebeld geen houten design tafels, geen luwe om te vragen hoe laat ik aanwezig wiebelstoelen, geen vaatwasser, en we moest zijn. “Niet te vroeg,” was het dronken water uit de kraan, maar het antwoord, “het is nog vakantie.” was wel een echte socio-corner. Ik “Brabanders!!” dacht ik en dus stond vond het hartstikke eng en moest me ik de volgende morgen vanuit aan iedereen voorstellen. Daar zaten Amsterdam om half negen voor een ze: een plukje AIO’s en de die-hards: gesloten secretariaat. Geen mensen, Cees Oomens, die net vader was geen kamer, geen begeleider, zelfs de geworden van zijn eerste dochter, kantine was gesloten – het was tenslotte Frans van de Vosse, Gerrit Peters en vakantie. Maar waarom was het dan Theo van Duppen. Je mocht er nog 4 roken. En ook nog eten. En de koffie En natuurlijk had ónze promotor ook was bere-sterk, maar dat kwam omdat nooit tijd, was-ie altijd weg, en deed-ie de beker die ik kreeg in geen tijden weinig goed in onze beperkte visie. afgewassen was. Heerlijk zo’n klaaguurtje. Naderhand kon je altijd energiek en enthousiast Daar speelde het zich dus af. Het verder met dat ‘stomme project waar je centrum van de vakgroep. Je kwam echt geen zin meer in had’. er alles te weten als je goed luisterde. En niet alleen over de vakgroep. In de toenmalige vakgroep WFW Helaas moest ik ook vertellen en gingen we 1 maal per jaar twee dagen vragen beantwoorden. naar Rolduc. De eerste keer dat ik dat meemaakte was er ’s avonds een “Wát heb je gestudeerd?” … “Nóóit speciale bijeenkomst voor de AIO’s, van gehoord”. samen met de vakgroepvoorzitter (tevens promotor van velen van ons). “En wat kom je hier doen dan?” … Hora Est was net opgericht en als verenigde AIOs maakten we van de “Doen wij dat hier dan? Waarom weet gelegenheid gebruik om ‘onze’ stem te ik dat niet?” laten horen. We klaagden! O, wat klaagden wij. Over pc’s, studenten, te “O, je gaat ook nog in Maastricht hoge of te lage temperatuur, regels met werken. Gerrit heeft dat ook gedaan. uitzonderingen, te weinig begeleiding, Veel gereis hoor”. te weinig apparatuur en onze promotor die er nooit was en te veel deed waar “Bij wie dan?” … “Begeleidt die nog wij geen weet van hadden. Dat we geld AIOs dan?” kregen voor Hora Est vergaten we voor het gemak maar even. En naderhand “Nou, ehh, tja, succes dan maar”. vertrokken wij energiek en enthousiast naar de bar, waar de rest van de staf Pfff, overleefd! zich moed had ingedronken teneinde de muiterij te doorstaan. En na die vuurdoop hoorde ik erbij. De enorme eenvoud ervan sprak me Pfffff, overleefd…. aan en de eendracht onder de AIOs vaagde alle onzekerheid weg. Twee Het was voldoende. Wat een eenvoud. keer per dag bliezen we samen stoom Het was eruit en onze stem gehoord. af en werden alle frustraties weg- We bleven nog wel een paar dagen geventileerd. Ik ken geen betere doormopperen, maar niemand taande stress-remedie. En klágen dat we nog naar de antwoorden, de uitleg en deden: over pc’s die maar niet besteld de beloften die gegeven waren. Tenzij werden, over onhandige studenten die je er weer over kon gaan klagen. Zelfs niet naar ons luisterden, over te hoge de notulen die ik gemaakt had bleven of te lage temperatuur in de kamers, wekenlang op het secretariaat liggen over bijeenkomsten in het AG, over zonder dat iemand ze miste. Uiteindelijk regels die altijd uitzonderingen belandden ze zelfs in de prullenbak, hadden, over te weinig tijd, te weinig terwijl de vakgroep-voorzitter veel deed begeleiding en te weinig apparatuur. waar wij geen weet van hadden. We 5 konden weer verder; pak van ons hart; vergaren dat je mening er met kracht schone lei. Met dank aan ons uit kan komen. Er staat een moderne klaagobject die dit mogelijk had water-tap, ter voorkoming van stress gemaakt. en maagpijn door een teveel aan cafeïne. En als de stress echt toeslaat 2006 is er alcohol voorhanden, zodat je in ieder geval relaxed thuis kan komen. Meer aios, meer postdocs, meer werk. Het is een hangplek geworden waar je Zelfs Hora Est heeft een dubbel zo intellectueel kunt chillen, waar dips, groot bestuur. In onze groep hebben begeleiding- en onderzoeksfrustraties we daarom niet één, maar twee luxe lekker weggewerkt kunnen worden. koffietafels waaraan het zeer goed Doen! Maar wel met veel respect voor stoom afblazen is. In de zwarte je klaagobject. wiebelstoelen kun je zoveel energie

6 From the old box: ‘stoeleninventarisatie’

Martijn Cox

From the very beginning of its existence, Hora Est has been fighting for the rights of the PhD students. A very nice example of this commitment is the “stoeleninventarisatie” of 1996. Without this petition, which was signed by 51(!) PhD students and sympathisers, we would still be sitting on the medieval torture tools that were the standards of those days. A selection of the descriptions they were asked to give of their chairs:

Beste inventarisator, Ik heb geen wieltjes, hij is niet ik heb een stoel zonder bekleding van gasgeveerd, geen hoge rugleuning, tropisch hard hout. De hoogte is alleen kortom, een ergonomische ramp. te varieren door de stoelpoten plastisch te deformeren. Rondrijden is al Mijn armleuningen zijn niet verstelbaar! helemaal niet mogelijk! Graag wil ik een nieuwe stoel! Gezien mijn meer dan gemiddelde lengte in combinatie met mijn levensverwachting verdien ik een nieuwe stoel daar ik Welk een briljant initiatief uwerzijds, en anders ook zo eloquent verwoord. U is mijn idool. over enkele jaren van VGZ een stoel met Mijn stoel heeft wieltjes, geen leuningen, elektrische aandrijving, wieltjes en is kunstmatig verhoogd, en nauwelijks instelbare hoogte krijg instelbaar. Beneden alle peil dus. (als je begrijpt wat ik bedoel).

Sinds twee weken ben ik in het bezit van een ‘nieuwe’ stoel. Hij heeft een Mijn stoel heeft zowaar wieltjes, blauwe bekleding en een zwart frame. geen armleuning, is na een weekje Hij heeft geen wielen en is helaas krachttraining in hoogte verstelbaar, op geen enkele manier instelbaar. en heeft een rugleuning die nog wel Wel is hij de trotse bezitter van eens spontaan van positie wil twee (!) armleuningen: een links en veranderen. Eigenlijk is het gewoon een rechts. Ik houd van mijn stoel, een afdankertje. en als ik afscheid van hem moet nemen, Maar hij rijdt wel goed. en hij plaats moet maken voor een instelbare stoel met een fatsoenlijke rugleuning, dan zal ik een traantje laten. wieletjes hoogteverstelling (gasveer) rugleuningverstelbaarinhoogteenafstandtotdedraaiasvandestoel

PS Ik wil wel een blauwe! ;-)

7 Automotive Lab

Erwin Meinders

The Master track Automotive Engineering Science is a cooperation between different divisions of the departement of Mechanical Engineering. Within every division there are several sections engaged in this Master Track, which results in four different research fields.

ICE – Research Internal Combustion Engines

Internal Combustion Engines is part of the Combustion Technology Group of Prof. Dr. Ir. Philip de Goey and performs research on the combustion fuel injection and EGR strategy, as well processes in Heavy Duty Diesel as fuel compostion on the characterics Engines, under supervision of the part- of this new combustion process. time professor Rik Baert. 1-cylinder Heavy Duty combustion PCCI – Research on a DAF 12.6-liter engine Heavy Duty Diesel Engine with EGR The setup is based on the Ricardo and Flexible Commonrail Fuel Proteus one cylinder engine but the Injection System construction is completely altered to This 12.6-liter engine with Exhaust Gas enable optical entrance through the Recycling (EGR) and flexible piston. Due to this the combustion commonrail fuel injection system is proces can be visualised and with PIV equipped with sensors to measure the flow field can be determined. temperatures, flows and pressures. Primary utilization is CNG. Emissions (CO2, CO, NOx, HC and soot) can be measured with the use of a Flow bench/PIV setup Horiba Fast Response analyser (MEXA- The flowbench setup enables 1300FRI). This setup is used to measurement of flows through different investigate a new form of combustion inlet manifolds by means of PIV and known as Premixed Charge LDA. Because of this the instantaneous Compression Ignition (PCCI). Of flow field can be quantified and the particular interest are the influences of turbulence level and flow profile can 8 be determined as a function of the valve the fuel consumption of a 1.6 liter. This lift. Mass flows and manifold pressure is due to the boost energy which is are independently controllable. supplied from the flywheel to speed up the engine when downshifting. The EHPC (Eindhoven High Pressure acceleration lag which normally occurs Cell) during downshift is therefore eliminated Constant volume setup with optical leading to a better driveability. entrance all-around. Designed for extreme conditions with combustion BTS Test-rig pressures up to 300 bar and To perform research on CVT’s a test temperatures up to 2000 K. The high rig is built on which transmissions can presssure cel is equipped with a be tested under controlled conditions. custom made common rail system with The transmission can be driven and which each seperate injection can be braked with two 75 kW electromotors studied. The high pressures and with 298 Nm at 5000 rpm. The input temperatures are created by ignition and output speeds can be measured of explosive gas mixtures. Control and very accurately with 2046 inc./rotation. data acquisition is performed by a TU/ For a research project performed by e DACs system (in-house developed three PhD’s a belt box is mounted real time measuring and control which only consists of the parts system). necessary for transmitting power. With this belt box a controlled environment PT – Research Power Trains is created which enables accurate measurement of slip in the variator. Power Trains is part of the Control With the knowledge on the behaviour Systems Technology Group of Prof. Dr. of the belt with respect to slip a Ir. Maarten Steinbuch. Research is clamping force strategy is developed concentrated on design, modelling and which increases the efficiency of the control of Continuously Variable power transmission. By a newly Transmission systems as well as developed actuation system clamping (hybrid) power trains, systems and force on the pulley’s is delivered “on components. demand” which leads to an even higher efficiency. PT – Research Volkswagen Bora with ZI hybrid power train TR3 Test-rig The Zero-Inertia hybrid power train The TR3 Test-rig consists of a 2.0 liter built into the VW Bora consists of a Nissan Primera engine (103kW) with 1.6 liter gasoline engine and a Jatco CK2 transmission. By means of Continuously Variable Transmission a flywheel and electric brake coupled (CVT). Due to the CVT the engine can to the driveline it is possible to simulate always operate in it’s most efficient road driving. Brake power is 330kW operating point, which lowers fuel and the flywheel inertia is 11.5 kg•m2. consumption. By using a flywheel With the TR3 Test-rig dynamic tests which stores energy at constant speed can be performed in real road and delivers energy when down shifting situations. The driveline is equipped it is possible to achieve the with torque and speed sensors which performance of a 2.0 liter engine with enable efficiency measurements. 9 Idle Test-rig Audi A3 with electro-mechanical For testing new control strategies and actuated CVT getting insight in actuation behaviour This Audi A3 2.0 liter testvehicle is a test rig is developed which operates rebuild with a electro mechanical without load. In this way a safe actuated push belt CVT, developed by environment is created in which it is three PHD-students at the TU/e. By possible to test newly developed control using electro mechanical actuation for strategies without the risk of damaging the clamping forces at the pulleys, hardware. By adding sensors to the efficiency can be improved. Moreover transmission relevant parameters such this system is well suited for slip control as hydraulic pressures, pulley speeds, as mentioned in the Nissan Primera, spin loss torque can be measured. The while the actuation system can react test rig consists of a Jatco CK2 faster compared to a hydraulical transmission driven by an electromotor system. and thermostatically cooled by a heat exchanger.

Power Loop Test-rig The purpose of this test-rig is to perform endurance-tests on CVT chains (Gear Chain Industrial) and CVT push-belts (Van Doorne’s Transmissie). A circulating power flow (power loop) is created by positioning two variators parallel. This way the driving electric motor only has to compensate the losses in the two variators, while the power flow through the variators is much higher.

Nissan Primera with slip control In this 2.5 liter Nissan Primera with Jatco CK-kai CVT the controller of the transmission can be interupted by a slip controller developed at the TU/e. By Mitsubishi Colt with powershift AMT allowing a small amount of slip, the In this 1.5 liter Mitsubishi Colt with AMT transmission can be improved by (Automated Manual Transmission) a means of efficiency and therefore fuel so-called powershift module is added. economy. The slip controller keeps this This module prevents torque loss amount of slip between pulleys and belt between engine and wheels during in the point where the friction coefficient lower gear shift actions. In this vehicle reaches its maximum. This is achieved the BST (Brake Shift Transmission) by controlling the clamping pressures version of the concept, designed by of the hydralic system in the CVT. DTI, is implemented and tested.

10 Dyno Citroën BX with 4WS For testing the different vehicles a dyno This Citroën is reconstructed to a four- is available at the laboratory. On this wheel-steering vehicle. The amount of dyno measurement can be carried out steering of the rear tires can be adjusted with vehicle speeds up to 200 km/h. At proportional to the steering of the the maximum speed and load, 230 kW of front tires. This can be done in the same power can be dissipated by the Eddy- direction as well as in the opposite direction. At the moment this vehicle is current brake. The set of flywheels can used to let the students experience the simulate a vehicle mass between 680 effect of e.g. over- and understeering, and 2500 kg, during accelerating and which untill now was only explained in braking. theory during the lectures.

VD – Research Vehicle Dynamics VS – Research Vehicle Safety

Vehicle Dynamics is part of the Vehicle Safety is part of the Mechanics Dynamics and Control Group of Prof. of Materials Group of Prof. Dr. Ir. Marc Dr. Henk Nijmeijer and performs Geers and performs research on vehicle research on tire modelling, vehicle safety design and crash behaviour of dynamics and overall vehicle control intelligent materials, under supervision of systems, improving drivability and the part-time professor Jac Wismans. stability of vehicles, together with VS – Research Pneumatic Crash-test research on control systems that facility improve vehicle behaviour. This crash setup consists of a sled of 220 kg which weight can be increased VD – Research Flat Plank Tyre Tester up to 500kg. The sled crashes into a To validate models used in simulation massive barrier at a maximal speed of an experimental setup is present. With 64 km/h. Crashworthiness of profiles this rig forces acting on the tyre can and subsystems up to 60 cm width can be measured as well as relaxation times be tested. For now the impact velocity at low speeds. The sled on top of the is measured but in the near future this rig translates while the tyre position is will be extended to several forces and fixed. Several adjustments can be made accelerations during impact. Crash to the setup: load in vertical direction transverse direction observation is possible with a digital longitudinal speed and high speed camera. road surface camber

11 Changes (Hora Est 1996 - 2001)

Frank Swartjes research and provided better salaries. So at a certain moment there appeared a certain salary discrimination between the PhD students. The situation appeared that PhDs doing the same kind of research earned more than their colleagues. After a few months (and probably a lot of Hora Est! More than just two words. negotiations) the University Board You won’t forget the moment that you decided that the ‘normal’ PhDs hear these two words. A milestone obtained a ‘bindingspremie’. This was moment that ends a phase, but also really an improvement for the PhD starts a new phase in your professional students. When I started I obtained an life. The ‘Hora Est moment’ also ends amount of 977 euro (including taxes), a period with many ‘Hora Est’ which was much more than your excursions and social events. It seems ‘student salary’. Starting from the first yesterday, but it is almost five years of April in 1998, the ‘bindingspremie’ ago that I had this ‘Hora Est moment’. provided a yearly increase on top of As far as I can remember, there were the standard salary. For example, the two important developments during my salary of a first year PhD increased PhD period. with 313 euro (this number reduced to zero in the last year). When I now look The first development was not only at these numbers it seems quite low, important for the PhD students, but I but I think this development was a good think even more critical for the step forward to maintain the knowledge (fundamental) research in the level at the universities in the Netherlands. At the time I started Netherlands. (almost 10 years ago) economy was rising and, as a result, most Master Of course these developments also students started a career in the influenced Hora Est. Besides the salary industry after finishing. At the same discussions in the general member time, government and universities meetings (ALVs) the definition of Hora started with measures to maintain and Est member was a point of discussion. improve the knowledge level within the The Sixth (Hora Est board) was Netherlands by starting cooperations confronted with the fact that the between the universities in research Mechanical Engineering faculty was schools (like Engineering Mechanics) reorganised, because of the raising of and top institutes (like DPI and NIMR). top institutes and national research The top institutes aimed for the best schools. The traditional units within students and continuation of their Mechanical Engineering, which were 12 divided roughly in Construction and Of course I am interested in how Hora Design (WOP), Production Technology Est and all my old colleagues are (WPA) and Fundamental Mechanical doing. How is AntIlOpe doing? Are they Engineering (WFW), disappeared. still followed and spied from the Sky Since the membership of Hora Est was Box (or Cardio Fitness room) by our connected to WFW, the discussion invisible mental coach ‘Huub Giesen’? started how Hora Est should continue. And how about the traditions like the At first instance it was decided during BBQ after the board change? Is the the Seventh that the PhD students of security still ‘tolerating’ the late ending the former WFW professors could events like the OLLA and BBQs (with become members and later on it was all the discussions about permission)? decided that Hora Est would be How about the Eastern lunch or the connected to the whole faculty. The shoes at the secretary during the Engineering Mechanics school was an Sinterklaas period (creative idea from important development for quite some the Seventh…)? Hora Est members. The universities within this school started to provide few It is obvious that I am very curious to days’ courses on several topics. Of meet you all and talk about Hora Est course, quite some members followed stuff at the end of September. By the these courses and all kinds of mainly way… some things do not change: non-technical stories appeared in the sorry for my late submission of this Pedel. Add the change of the Stevin contribution to the Pedel! As an old Symposium to a two days‘ Engineering member of the Editorial committee of Mechanics symposium and you get the Pedel I should know better! even more non-technical stories, especially during the bar periods late at night (as far as I could remember from all drinking stories).

Another development during my PhD period was the increase in foreign PhD students. Nowadays it is really common to have quite some foreign PhD students or PostDocs at the university, but in the past not many foreign people worked in Eindhoven. Even AntIlOpe had two transfers from Romania (Liviu) and our own Stoichkov from Bulgaria (Alex Z.). The TeMa (team managers) from AntIlOpe even organised a tactics course and Harold van M. tried to combine the foreign and Dutch playing systems… In 1999 the Pedel changed its language into English so that all Hora Est members could understand each other’s stories.

13 Puzzle: who is who?

Photo set 1: former members of Hora Est

(a) (b) (c) (d)

(e) (f) (g) (h)

Photo set 2: secretaries

(a) (b) (c) (d)

14 Question 1: How do the faces, shown in photo set 1, match with the following names?

1. Carla Reijnierse 5. Patricia van Kemenade

2. Peter Bovendeerd 6. Cees Oomens

3. Wim Bruijs 7. Marc van de Wijst

4. Hans Baaijens 8. Huib de Heus

Question 2: The same question for photo set 2.

1. Yvonne Biemans

2. Lia Neervoort

3. Alice van Litsenburg

4. Marleen Rieken

Question 3, for bonus points: What happened to Marcel Rutten between these two pictures?

15 Laboratory for Cell and Tissue Mechanics

Moniek de Liefde

The laboratory for Cell and Tissue Engineering, Cellab in short, at its current location, is in use since December 2001. The lab, formerly known as the Laboratory for Cell Mechanics, is a stranger in the land of technology. No big machines, with lots of noise are harbored in the lab; instead a lot of chemicals and small equipment can be found and most of the noise is originating from one the three radios present. In this unique lab Technology meets Biology.

Entering the Cellab is not that simple, as it is shielded by an authorized entry tissues (tissue engineering). These system and only people are allowed to tissue-engineered constructs are enter and work in the lab after following manipulated mechanically such that the a specific instructions course: Safe tissues will resemble ‘normally grown’ Microbiological Techniques or VMT in (i.e. in a body) tissue better. The Dutch. The Cellab is a special lab with technical side of the lab becomes even a so-called ML-II status, meaning that more apparent when the tissue- it is allowed work with cells and tissues engineered samples are characterized originating from humans or animals and for their mechanical properties: how even with genetically modified much strain can be endured? After organisms. The latter can be cells in these experiments, the samples are which the DNA has been modified to handed over to biological meet experimental purposes; e.g. characterization. How much collagen proteins can be fluorescently labeled is present, where is it located and to be visualized better during which other genes are expressed that experiments with living cells. can explain the properties of these constructs? This all takes place in the Inside the culture room of the Cellab, second of three interconnected next to the noise from the radio, other laboratory rooms, the ‘wet room’. Here characteristic sounds are heard: the you find chemical cupboards filled with hissing and puffing of the bioreactors many different chemicals, some of in which cells are grown to become which are toxic, flammable or 16 mutagenic. Surprising is the large amount of house-hold equipment you also find here: freezers and fridges, an oven and even a microwave. A liquid nitrogen tank and a big -80°C freezer complete the picture. The last, but not least, room of the Cellab is the microscopy room. Usually lights are switched off and when you enter, a science fiction-like appearance unfolds. A dark room with little islands of technology, small lights emerging and (usually) silence. These islands actually represent the different fluorescent and confocal state-of-the- art microscopes used to anwer more biological questions: where is my protein of interest located in this tissue- engineered construct?

In short, the Cellab is a unique laboratory of the TU/e in which biology combines with technology in a rapidly growing field of Tissue Engineering.

17 Hora Est in its early 2000s (2001-2006)

Anita Mol the hospital and at home for some time, and Falke got pregnant. So it was a hard year for the Hora Est board to keep Hora Est alive. The board(s) after us have regained the member’s trust in Hora Est. More and more people became a member. This was due to the enthusiastic board members setting Again another lustrum for Hora Est… up a very active Hora Est advertising I do remember the last lustrum party, campaign. As I somehow felt guilty that that was a real success! So, Hora Est I screwed up my board year by being over the past five years. A lot has away, I decided to start up the Pedel happened in this timeframe. I was a again. I did not want to do that alone board member in 2001/2002. Hora Est and found a companion in Ingrid had lost some of its popularity among Groenenberg. The Pedel did not exist the members. There was no editorial for several years and to attract new board and, therefore, no Pedel. It was members and to make Hora Est known also very hard to attract new board among the faculties of W and BMT, it members, and also in my board needed a Pedel. We found some old member year there were not enough covers and made several Pedels over board members to form an editorial the year. We found the people very board. We were in the board with six eager to write something, I guess persons, Leonie van de Heuvel as the because they also were aware of the chair woman, Emiel Peeters and me benefits for Hora Est having a Pedel. as the secretary (we shared a We found a lot of old to very old Pedels function), Falke Hendriks as the and in each Pedel issue we published treasurer, Nenad Mihajlovic for the something ‘from the old box’, very scientific activities, and Francois funny! I am glad that the Pedel still Desbiesme for the leisure activities. I exists, even in a new cover since last shared being a secretary with Emiel, year. Keep up the good work! as I knew I would be away a part of the year for my PhD. I thought that Then the last lustrum party, I just have would only be part of the year… it to share some of the details with you. ended up being from November until I guess there are not that many people July, which is basically almost the working here that still remember that complete Hora Est year. Hereby I party, but still (hmm, does that say would like to apologize to Emiel! I was, anything about myself – I AM NOT however, not the only person being OLD!). We had arranged a absent in his or her board year. Leonie performance of the very famous had some knee problems and was in ‘boyband’! And the boyband was 18 accompanied by real ‘groupies’, which of course all had to be in the first row, completely dressed up and carrying photos of their favorite band member. One of them even fainted when she saw her idol on stage. But the security guards (what would a boyband do without security guards to keep all the ladies away) helped the lady back on her feet again. The members of the boyband, Leonie (ok, with some help a ‘boy’), Francois, Erik and Roel (I know I am now forgetting someone) took their job very seriously. In particular Francois and Erik!! It was a great party, thanks to the organizers.

To all current board members and their follow-ups, make sure Hora Est survives to the next lustrum!

The boy band (below, top right) and their groupies (above).

19 20

¡ ¡

¢ £ ¤¥ ¦ § ¢ ¢ ¨¥ © © § © § § §

§ § ¥ £ ¤ § § ¤ ¥ ¦ § ©¥ ¥

¨ § ¥ ¦ £ ¤ ¨¢ § ¥ £ ¥ ¢ ¢ ¨ © § © §

§ ¤ © ¨ § © § £ ¤¥ § § © ¨ © §

§ ¨§ £§ ¤¥ § ¨§ ¦ ¥ ¥ £ ¤ § ©

¡¡

¨ ©¢ ¨§ § ©§ ¤ ¨§ § © ¨§

¨ § ¤ § ©©¨¢ § © § § ©

¡ ¡

§ ¨ § © § § ¥ § ¨ § § © ¨ §

©©§ © ¨§ § © © ¥ £ ¢§ £ § § ¤

¥ £ § ¢ £¥¢ ¨ ¨ §§ © © ¥ © §

" #

¡ ¡

£¤¥¦§¢¢ ¨¥ © ¢ § © § © § §¦¥¥ ©©§ ¤

§ ¤ $¥ © § § ¦ ¥ © ¥ £©§ § ©

( ) (*

§ ©©§ &§ ¤ § ©

' ' ''

# "

/ 0 1 0 0 0 0 ;;

, 5 5 5>

-. 23 .-4 -. 6 3 7 --93 6< 24 =

8 :

0 ? 0 ? 1 ?

5 5 5

22<--<96 76< 6 2 9-< 3- 63 < @6 6 -<

8 8

? ? 0 / 1 ?

5 5

22 6 < 6 7-< 22924 96 6 6

8 A

; 1 0 ? ? 0

5 5 5 5

7- 34 6. - 3 6< B C6 6 76< 22 -D= 6

8 8

/ 0 1 0 0 ? 1 ; 0

5 5> 5>

96 . 24 63 -- B F 6 4 6 D-<6< 2

8 8 : 8

? ? 0

722 6 7-< 66< 4 2 6. B

8 ::8 8

21 From the old box 2: the Saint and Pete

Rudi Steenbakkers

In 2001, as always, Saint Nicolas (Sinterklaas) and his faithful servant Black Pete came to W-Hoog to bring presents for the AIOs of Hora Est. What they didn’t know was that a surveillance camera captured all their actions. At the ‘Sinterklaasborrel’ the board of Hora Est showed the video tape to the AIOs, who were heavily traumatized. It turned out that the Saint and Pete were not the nice guys we all thought they were.

On their way out of W-Hoog, the Saint and Pete had noticed the camera and tried to sabotage it. While the video tape was all right, the audio tape got heavily damaged. However, five years after this shocking event, we finally managed to restore it. Here we present stills from the video tape combined with excerpts from the audio tape.

S: “Look, the AIOs placed their shoes. The one with P: “Maybe there’s also extra food for the boot probably hopes to get extra presents.” your horse in it...” S: “Of course! These AIOs are noble people.”

22 P: “Bwaagh...It stinks!” I’ll throw it away! Hey, “... It’s a carrot four your horse. Yuck! It something fell out...” still smells of sweaty feet. S: “That guy will get nothing. Let’s look at the other people’s poems.”

S: “This one is from Gerrit Peters. He’s not even an AIO. Oh well, if his poem is all right, let’s give him some candy. ‘Heilige gladiool, geef wat aan een halve zool...’ Pete, these people have no respect for a saint!” P: “Bastards! Let’s thrash this place!”

23 P: “Hmm... maybe it’s better to use a S: “Bull shit! Miindless violence always subtle method...” does the trick!”

S: “Now let’s see if I can hack this thing and find out if there’s anything valuable in W-Hoog, something we could sell on the black market in Spain. Hey! I can see where Hora Est stores its beer. That’s even better; I could use a drink!” S: “It should be in here...”

24 P: “All of the poems are awful.” S: “The thanks I get for centuries of faithful service. I’ve got to take a leak.”

S: “Beer! And it’s mine, all mine, muhahaha!” P: “Ähum” S: “Ours, all ours...”

S: “Hurry up, it’s time to go!” P: “I can’t pee when someone else is present.” S: “I’ll leave you and little Pete alone then. But hurry!”

P: “Stealing is more fun than handing out presents plus you get something out of it.” S: “Yes, we’ll redefine our mission statement when we get back.” 25 Dynamics and Control Technology Lab

Roel Merry

The DCT Motion laboratory is located at floor -1 in building WH and is home to the Dynamics and Control Technology (DCT) group, which is composed of the Dynamics and Control section of prof. Nijmeijer and the Control Systems Technology section of prof. Steinbuch. In the DCT laboratory both PhD and MSc students have the possibility to perform experiments with a wide variety of motion systems. A lot of setups and systems are also used for educational purposes during several courses, projects, and internships. Fig.2: Setup pizza case.

The general research objective of the Dynamics and Control Technology group is thestudy of all aspects related to design, dynamics and control of high- performance mechanical systems. This covers the full range of topics such as design, modeling and analysis of systems, controller synthesis, signal and performance analysis.The research areas include non-linear dynamics of mechanical systems, (structural) acoustics and noise control, structural optimization, advanced motion systems, process-control, automotive technology and mechanical design.

Some of the setups which are actively used as a test-bed for research are the drill-string, a vibration isolation system, Fig.1: Several robotic setups. the RRR robot manipulator, the one-sided impact flexible beam, and a printer paper path control setup. 26 Other setups include the FAMM direct drive robot (Philips CFT), four mechanical pick-and-place units, a 1- DOF medical manipulator with force feedback, an H-drive pick-and-place system, and the inverted pendulum.

Two of the mechanical pick-and-place units are used for th so-called pizza project in which groups of fourth year students have to move (plastic) pizza’s from one rack to another. The setup is Fig.3: Mars landscape with LEGO rover. shown in Fig. 2. A new educational setup in the laboratory is the Mars landscape (see Fig. 3) on which a Marsrover built The real-time hardware, data acquisition of LEGO has to be programmed to find and measurement equipment includes water on Mars. Furthermore, the over 10 dSpace systems, 5 SigLab laboratory has 10 fourth order rotating measurement systems, and over 30 mass systems, 10 resonating mass TUeDAC systems. In the laboratory systems, and 10 printer setups, which several work stations are created where are used for a wide variety of educational MSc students can perform their research purposes. in a stimulating environment. Key in the functioning of the lab is the support The development of a real-time Linux- provided by the technical staff, both based DVD makes it possible for mechanical and electrical. So the DCT students to perform experiments with a Motion lab is a lively location where wide variety of setups using their own research is performed on the dynamics notebook computers as real-time control and control of present-day high- processors in combination with a performance motion systems. TUeDACs data acquisition device.

Fig.4: Overview of the DCT lab.

27 Hora Est 3rd Lustrum Gala

Famke Kraaijeveld After the dinner, gala pictures were shot and everybody received fake money to gamble at the blackjack table.

This year Hora Est celebrates its 15th anniversary. With two old-board members (Angelique Balguid and Debby Gawlitta) and three current board members (Arjen den Hamer, Kristel Boonen and me) a committee was formed to organize an event for our members and staff, a dance with dinner.

While one part of the guests were gambling away their money, the others were dancing to the music played by cover band Mrs. Daniels (www.mrsdaniels.nl). They played various pop and rock songs, impressing the crowd with their talent The dance took place in the wonderful and their enthusiasm. atmosphere of the DAF museum (www.dafmuseum.nl/) whose volunteers served drinks the whole evening. Between the old houses and with trucks on the background, the buffet and dance were opened by current chairman Roel Merry.

The evening ended with the announcement of the winner of the blackjack tournament, Martijn Cox. And of course there were cigars at the end.

Three hurrahs for Hora Est!! 28 The gala committee.

The board of 2006. The official blackjack winner.

29 The Hora Est Hall of Fame

Former members

Aa, van der Michael Blok Aart Philips Lighting Turnhout

Anderson Patrick Bogaerds Arjen TU/e DSM

Aneke Edo Bongers Happy Ford Aachen TU/e

Assinck Frank Bosboom Marielle Philips high tech plastics TU/e

Baaijens Frank Bosch, van den Eric TU/e Bamrail

Baaijens Hans Bouten Carlijn Philips Lighting Controls TU/e

Baijens Lotte Bovendeerd Peter Philips Medical Systems TU/e

Barosan Ion Brands Dave TU/e DSM

Bavel, van Hennie Breukink Christien Hospital Sittard

Beek, van Annemarie Breuls Roel Milieu&Natuurplanbureau VUMC

Beek, van Bert Brokken Dirk Océ Philips Natlab

Beek, van der Maurice Brouwers Henri Philips Appl. Technologies

Berghmans Stef Bruijs Wim. Milliken General Electric 30 Buijs Louison Druten, van Roell Philips Cons. Electronics TU/e

Camp, op den Olaf Duijnhouwer Frans TNO

Caspers Leo Dumon Annick Bosch Rexroth BV Philips?

Casteren, van Ilse Ellenbroek RML NeoResins TU Delft

Claessens Maurice Engelen Roy Hyundai Motor Europe Philips Appl. Technologies

Courage Wim Essen, van Harm TNO TU/e

Cuellar Ana Etman Pascal TU/e

Daniels Marc Evers Rens Universiteit Utrecht Daf trucks

Dielhof Martine Evlampiev Alexei TU/e

Dijkhof Wilbert Faassen Ronald TU/e TU/e

Dijnsen, van Gerard Fey Rob Openbizz TU/e

Doelman Ricky Frissen Richard DSM

Dollevoet Rolf Garkhail Sanjeev Prorail

Dommelen, van Hans Geerts Niels TU/e Assembleon (Philips)

Donkelaar, van Rene Geerts-Ossevoort Liesbeth TU/e Philips Medical Systems

Doorn, van Andre Gielen Sander Philips Medical Systems TNO Built Env. Geosc. 31 Gijsen Frank Heuvel, van den Paul Erasmus Univ. Rotterdam DSM

Goijaerts Ad Hoevenaars Bart Philips Lighting

Goossens Han Hoogstraten, van Peter TU/e Philips ASMB

Groenenberg Ingrid Houten, van Rien Catharina Ziekenhuis NLR

Haagh Gerard Huisman, Rudolf DSM Perf. Materials Daf Trucks

Haaren, van Rik Jager, de Marko Philips Oral Healthcare

Hart, de Jürgen Jagerman, Freek Hemolab

Hartgers Han Janssen, Jos DSM Comp. Technology

Heertjes Marcel Jong, de Fokke Philips CFT ASML

Hendriks Falke Kasyanyuk, Yuri TNO Automotive TU/e

Henselmans Rens Keestra, Bert TU/e DSM

Hensen Ron Kemenade, van Patricia Daf Trucks Philips Medical Systems

Hermanns Roy Kerckhoffs Roy TU/e UCSD, San Diego

Hesseling Rogier Kessels Peter Takata Europe Paragon Nederland

Heus, de Huib Kleintjens Lucien FTSS Europe

Heuvel, van den Leonie Kok, de John ASML 32 Kools Robert Ljevar Svetlana Witteveen+Bos TU/e

Kootwijk Carolien Loon, van Raoul Imperial College London

Kostic Dragan Maenhout Mascha TMC Teacher Boxtel

Kouznetsova Varvara Matin Abdul TU/e TU/e

Krahn Katy Mediavilla Jezus

Kroon Petra Meijer Han DAF Trucks TU/e

Kruijt Peter Melick, van Harold Oce DSM

Kruijt-Stegeman Yvonne Meulman Hans Philips Research DSM

Kuijk, van Hans Meurs Paul TU/e Yacht

Kuijpers Ard Meuwissen Marcel M+P raadgevende ing. TNO

Laarhoven, van Marcel Mihajlovic Nenad Philips Natlab

Lammerts Ivonne Moens Marco TU/e faculteit BMT Oce

Lankveld, van Monique Molenaar Mathieu Hoogovens Shell

Leine Remco Molengraft, van der Rene ETH Zurich TU/e

Lemmens Didier Muijderman Hans DSM? ASML

Lieshout, van Marjolein Oijen, van Chris Philips Natlab 33 Onraet Stephen Remie Martin

Oomens Cees Rens, van Bas TU/e OTB Display

Ouchchahd Abdellativ Reuderink Peter Shell Chemicals

Palmen Danielle Rindt Camilo TU/e

Pavlov Alexey Roders Jelle NTNU Trondheim Ministerie V&W

Peerlings Ron Rooij, van Rene TU/e Axxicon

Peeters Emiel Roozen Bert ASML TU/e

Pelletier Christophe Ruimerman Ronald TU/e TU/e

Peters Gerrit Saalbrink Arnim TU/e Danfoss, DK

Putra Devi Sarkissov Alexander Coventry University, UK

Putter, de Sander Schaake Richard TU/e

Rademaker Christian Schaap Peter Philips Innov. Applications ASML

Rastogi Ruchi Schellens Hein Philips

Ratingen, van Michiel Schennink Gerald FTSS ATO-DLO Wageningen

Raulea Liviu Schoonen Jeroen ASML Philips ETG

Reijnierse Carla Schouenberg Marcel Philips 34 Schrauwen Bernard Ubachs Rene General Electronic TU/e

Schreppers Gerd-Jan Vankan Jos Diana BV NLR

Selen Sjaak Veldpaus Frans Philips Lighting TU/e

Sengers Bram Verbeek Bert Univ. Southampton, UK Paragon Nederland

Serrarens Alexander Verbeeten Wilco Drivetrain Innovations Cidaut, Spanje

Slaats Paul Verhoeve Ruud Takata USA TNO Automotive

Sluis, van der Olaf Verhulp Eelco Philips CFT TU/e

Smit Robert Verschueren Maykel Gasunie Nizo

Spek, van der Jeroen Vervoort Joost ASML

Spoelstra Anne Viatkina Katja TU/e TU/e

Starmans Edwin Vincent Herman MSC Software FEI

Stijnen Marco Vorst, van de Edward Hemolab Tass Safe

Suck Detlef Vosbeek Pieter MSC Software

Swartjes Frank Vosse, van der Frans TNO TU/e

Timmermans Luc Vrande, van de Bram Philips CFT

Timmermans Peter Vroemen Bas Philips Drivetrain Innovations 35 Wagenaar Giovanna Wisse Eva Philips Lighting TU/e

Wal, van de Marc Wouw, van der Nathan Philips TU/e

Wijnja Albert Zdravkov Alexander TU/e

Wijst, van der Marc Zoetelief Willem ASML DSM

Willems Frank Zuidema Hans TNO Philips 3D Solutions

Wilson Wouter TU/e

Current members

Aangenent Wouter Boom, van der Joris

Balguid Angelique Boonen, Kristel

Bedem, van Linda Bouma, Henri

Beek, van Linda Breemen, van Lambert

Berg, van den Roel Broek, van den Chantal

Bessems David Broek, van den Peter

Beulen Bart Bronneberg Debby

Beune Arend Brouwers Julienne

Boerboom Ralf Bruijnen Dennis

Boerlage Matthijs Bukkems Bjorn

Boers Sebastiaan Ceelen Karlien

Bonsen Bram Cloosterman Marieke 36 Cornelissen Lisette Housmans Jan-Willem

Cox Martijn Isaksson Hanna

Cremers Marcel Janssen Pieter

Custodio Frederico Janssen Roel

Dam, van Evelyne Kanters Frans

Dongen, van Suzan Kierkels Jules

Doris Apostolos Klaassen Tim

Driessen Niels Kock Ad

Eekelen, van Joost Koot Michiel

Engels Tom Kortsmit Jeroen

Evers Willem-Jan Kraaijeveld Famke

Evers Toon Laan, van der Ewout

Foolen Jasper Langelaan Marloes

Gawlitta Debby Leguy Carole

Geerligs Marion Mallon Niels

Geven Maartje Meerakker, van de Koen

Gunther Tijmen Merry Roel

Hamelinck Roger Mestrom Rob

Hamer, den Arjen Meulen, van der Stan

Heijman Edwin Naus Gerrit

Helvoirt, van Jan Oomen Tom

Helvoort, van Jeroen Ouden, den Dirk

Hendriks Maarten Pullens Rolf

Hofman Theo Roos Reinder 37 Roset Bas Terlouw Marlies

Rubbens Mirjam Tilborg Geralda

Schneiders Maurice Tosserams Simon

Scholte Rick Veeger Casper

Schroeder Yvonne Veer, van ’t Marcel

Sladek Raymond Veggel, van Mariëlle

Steen, van der Rene Vos Matthijs

Steenbakkers Rudi Werner Chris

Stekelenburg Maria Wijdeven, van de Jeroen

Stoets Michiel Wolters Berent

Current supporters

Baaijens Frank Faber Birgit

Berg, van den Rob Forstner Reinhard

Biemans Yvon Geers Marc

Bosboom Marielle Hamels Peter

Brakel, van Patrick Hesselink Reinout

Brekelmans Marcel Hoefnagels Johan

Chao Gabriel Hoof, van Pieter

Cremers Cas Liefde, de Moniek

Dam - de Veen Christa Litsenburg, van Alice

Debiesme Francois Loo, van de Anita

Donkelaar, van Rene Loo, van de Harrie 38 Meijer Han Rieken Marleen

Meinders Erwin Rutten Marcel

Mol Anita Schreurs Piet

Molengraft, van der René Sontjens Serge

Oomens Cees Stekelenburg Anke

Peeters Emiel Swartjes Frank

Peters Gerrit Tuijl, van Sjoerd

Petterson Rob Vosse, van de Frans

Rem Bart Wouters Leo

39 Solution to the puzzle

Answers 1: 1 = e 2 = d 3 = f 4 = a 5 = g 6 = h 7 = c 8 = b

Answers 2:

1 = b 2 = d 3 = c 4 = a

Answer 3 is lost in history. If you have a clue, please send it to [email protected].