Journal Articles
Submitted
Arfaee, M.,* Vis, A.,*, Bartels, P.A.A., Van Laake, L.C., Lorenzon, L, Ibrahim, D., Zrinscak, D., Smiths, A.I.P.M, Henseler, A., Cianchetti, M., Dankers, P.Y., Bouten, C.V.C. Overvelde, J.T.B., Kluin, J., A soft robotic total artificial Hybrid Heart.
Zrinscak, D., Lorenzon, L., De Chirico, C.M., Coluccia, F., De Luca, M., Maselli, M., Overvelde, J.T.B., Cianchetti, M., Design of a Soft Robotic Artificial Cardiac Matrix.
Van Laake, L.C., Overvelde, J.T.B., Perspective: bio-inspired autonomy of soft robots.
Published
(35) Mogas-Soldevila, L., Duro-Royo, J., Lizardo, D., Hollyer, G.G., Settens, C.M., Cox, J.M., Overvelde, J.T.B., DiMasi, E., Bertoldi, K., Weaver, J.C., Oxman, N., (2024) Driving macro-scale transformations in three-dimensional-printed biopolymers through controlled induction of molecular anisotropy at the nanoscale. Interface Focus [web]
(34) Schomaker, M., Picella, S., Kung Garcia, A., Van Laake, L.C., Overvelde, J.T.B., (2024) Robust phototaxis by harnessing implicit communication in modular soft robotic systems. Advanced Functional Materials [web]
(33) Paul, S., Overvelde, J.T.B., Hochhalter, J., Wang, P., (2024) Effects of void geometry on two-dimensional monolithic porous phononic crystals. Applied Physics Letters [web]
(32) Van Laake, L.C.,* Comoretto, A.,* Overvelde, J.T.B., (2024) On the coexistence of pressure regulation and oscillation modes in soft hysteretic valves. Journal of Fluids and Structures. [web]
(31) Zou., S., Picella, S., De Vries, J., Kortman, V., Sakes, A., Overvelde, J.T.B., (2024) A Retrofit Sensing Strategy for Soft Fluidic Robots. Nature Communications. [web] [movie] [Editor highlight]
(30) Wang, K., Overvelde, J.T.B., Engelbrecht, K, Bjork, R., Bahl, C.R.H., (2023) Predication for the volume compensation of 3D-printed large-deformation soft elastomeric elastocaloric regenerators. Applied Physics Letters. [web]
(29) Kropacek, J., Maslen, C., Van Dijk, B., Iniguez-Rabago, A., Overvelde, J.T.B., Zubov, A., Vrba, J., Cigler, P., Stepanek, F., Rehor, I., (2023) Hydrogel Microrobots Self-Assembled into Ordered Structures with Programmable Actuation. Advanced Intelligent Systems. [web]
(28) Wilt, J.K., Overvelde, J.T.B., Coulais, C., (2023) Shape Memory Soft Robots with Yield Stress Fluids. Advanced Intelligent Systems. [web]
(27) Iniguez-Rabago, A., Overvelde, J.T.B., (2022) From Rigid to Amorphous Folding Behavior in Origami-inspired Metamaterials With Bistable Hinges. Extreme Mechanics Letters. [web]
(26) Van Laake, L.C., De Vries, J., Malek Kani, S., Overvelde, J.T.B., (2022) A Fluidic Relaxation Oscillator for Reprogrammable Sequential Actuation in Soft Robots. Matter. [De Ingenieur][New Scientist][BNR Radio][movie][web]
(25) Vis, A., Arfaee, M., Khambati, H., Slaughter, M.S., Gummert, J.F., Overvelde, J.T.B., Kluin, J., (2022) The Ongoing Quest for the First Total Artificial Heart as Destination Therapy. Nature Reviews Cardiology. [Read only pdf][web]
(24) Overvelde, J.T.B., (2021). Popping, Locking Robots. Nature Materials, 20, 1590-1591. [web] Invited News & Views article for the Nature Materials article of Kim et al. [web]
(23) McClintock, H.D.*, Doshi, N.*, Iniguez-Rabago, A.*, Weaver, J.C., Jafferis, N.T., Jayaram, K., Wood, R.J., Overvelde, J.T.B., (2021) A Fabrication Strategy for Reconfigurable Millimeter-Scale Metamaterials. Advanced Functional Materials. [movie] [web]
(22) Oliveri, G., Van Laake, L.C., Carissimo, C., Miette, C., Overvelde, J.T.B., (2021). Continuous Learning of Emergent Behavior in Soft Robotic Matter. Proceedings of the National Academic of Sciences of the United States of America. [Movie] [AMOLF News] [Inverse] [Ars Technica] [De Ingenieur] [BNR Radio] [web]
(21) Röhrich, R., Oliveri, G., Kovaios, S., Tenner, V., Den Boef, A., Overvelde, J. T. B., Koenderink, A. F., (2020). Uncertainty Estimation and Design Optimization of 2D Diffraction-based Overlay Metrology Targets. ACS Photonics. [web]
(20) Oliveri, G., Overvelde, J.T.B., (2020). Inverse Design of Mechanical Metamaterials that Undergo Buckling. Advanced Functional Materials. [web]
(19) Iniguez-Rabago, A., Li, Y., Overvelde, J.T.B., (2019). Exploring Multistability in Prismatic Metamaterials through Local Actuation. Nature Communications. [Movie] [AMOLF News] [Scientific American] [web]
(18) Overvelde, J.T.B., (2019). How to Print Multi-material Devices in One Go. Nature, 575, 289-290. [web] [podcast] Invited News & Views article for the Nature article of Skylar-Scott et al. [web]
(17) Vasios, N., Gross, A. J., Soifer, S., Overvelde, J. T. B.,* Bertoldi, K.,* (2019). Harnessing Viscous Flow to Simplify the Actuation of Fluidic Soft Robots. Soft Robotics. [Harvard News] [web] [pdf]
(16) Mulla, Y., Oliveri, G., Overvelde, J. T. B., Koenderink, G. H., (2018). Crack Initiation in Viscoelastic Materials. PRL. [web][pdf]
(15) Overvelde, J. T. B., Weaver, J., Hoberman, C., Bertoldi, K., (2017). Rational Design of Reconfigurable Prismatic Architected Materials. Nature. [De Volkskrant] [De Volkskrant online] [News & Views in Nature] [Nova Next] [Harvard News] [web] [pdf]
(14) Wang, Z., Galloway, K., Overvelde, J. T. B., Polygerinos, P., Bertoldi, K., Walsh, C. J., (2016). Interaction Forces of Soft Fiber Reinforced Bending Actuators. IEEE/ASME Transactions on Mechatronics. [web] [pdf]
(13) Babaee, S., Overvelde, J. T. B., Chen, E. R., Tournat, V., Bertoldi, K., (2016). Reconfigurable Origami-inspired Acoustic Waveguides. Science Advances. [web] [pdf]
(12) Overvelde, J. T. B., Dykstra, D. M. J., de Rooij, R., Weaver, J., Bertoldi, K., (2016). Tensile Instability in a Thick Elastic Body. Physical Review Letters. [Harvard News] [web] [pdf]
(11) Overvelde, J. T. B., de Jong, T. A., Shevchenko, Y., Becerra, S. A., Whitesides, G. M., Weaver, J., Hoberman, C., Bertoldi, K., (2016). A three-dimensional actuated origami-inspired transformable metamaterial with multiple degrees of freedom. Nature Communications. [NRC Handelsblad] [Financial Times] [Tech Insider] [Daily Mail] [The Telegraph] [Smithsonian] [ResearchGate featured article] [New Scientist] [Mic] [The Engineer] [TU Delta] [Harvard News] [web] [pdf]
![[Financial Times]](https://overvelde.com/wp-content/uploads/2016/03/Financial-Times.jpg){kind=link}
(10) Pouya, C., Overvelde, J. T. B., Kolle, M., Aizenberg, J., Bertoldi, K., Weaver, J. C., Vukusic, P., (2015). Characterization of a Mechanically Tunable Gyroid Photonic Crystal Inspired by the Butterfly Parides sesostris. Advanced Optical Materials. [web][pdf]
(9) Overvelde, J. T. B., Kloek, T., D'haen, J. J. A., Bertoldi, K., (2015) Amplifying the Response of Soft Actuators by Harnessing Snap-through Instabilities. Proceedings of the National Academic of Sciences of the United States of America. [Harvard News] [The Engineer] [TU Delta] [cover] [web] [pdf]
(8) Coulais, C., Overvelde, J. T. B., Lubbers, L. A., Bertoldi, K., van Hecke, M., (2015). Discontinuous Buckling of Wide Beams and Metabeams. Physical Review Letters. [web][pdf]
(7) Bartlett, N. W., Tolley, M. T., Overvelde, J. T. B., Weaver, J., Mosadegh, B., Bertoldi, K., Whitesides, G. M., Wood, R. J., (2015) A 3D Printed, Functionally Graded Soft Robot Powered by Combustion. Science. [The Washington Post] [IEEE Spectrum] [Discovery] [Harvard News] [Popular Mechanics] [web] [pdf]
(6) Polygerinos, P., Wang, Z., Overvelde, J. T. B., Galloway, K., Wood, R., Bertoldi, K., Walsh, C. J., (2014). Modeling of Soft Fiber-reinforced Bending Actuators. IEEE Transactions on Robotics. [web] [pdf]
(5) Overvelde, J. T. B., Mengüç, Y., Polygerinos, P., Wang, Y., Wang, Z., Walsh, C. J., Wood, R. J., Bertoldi, K., (2014). Numerical Mechanical and Electrical Analysis of Soft Liquid-embedded Deformation Sensors. Extreme Mechanics Letters. [web][pdf]
(4) Overvelde, J. T. B., Bertoldi, K., (2014). Relating Pore Shape to the Non-linear Response of Periodic Elastomeric Structures. Journal of the Mechanics and Physics of Solids. [web] [pdf]
(3) Roche, E. T., Wohlfarth, R., Overvelde, J. T. B., Vasilyev, N. V., Pigula, F.A., Mooney, D. J., Bertoldi, K., Walsh, C.J., (2014). Bioinspired Soft Actuated Materials. Advanced Materials. [Research Highlight in Nature Materials] [News & Views in Nature Materials] [NRC Handelsblad] [Harvard News] [cover] [web] [pdf]
(2) Overvelde, J. T. B.,* Shan, S.,* Bertoldi, K., (2012). Compaction Through Buckling in 2D Periodic, Soft and Porous Structures: Effect of Pore Shape. Advanced Materials. [web] [pdf]
(1) Li, J., Shim, J., Deng, J., Overvelde, J. T. B., Zhu, X., Bertoldi, K., Yang, S., (2012). Switching Periodic Membranes via Pattern Transformation and Shape Memory Effect. Soft Matter. [web] [pdf]
*equal contribution
Book Chapters
(1) Overvelde, J. T. B., Weaver, J., Hoberman, C., Bertoldi, K., Reconfigurable Prismatic Architected Materials. Active Matter. Ed. Tibbits, S. Cambridge, 2017. 270-286. [web]
Filed Patents
(3) Van Laake, L.C., Overvelde, J.T.B., (2022), Fluidic Control of Soft Robots, US provisional patent application.
(2) Bertoldi, K., Overvelde, J. T. B., Kloek, T., (2017) Amplifying the Response of Soft Fluidic Actuators By Harnessing Snap-through Instabilities. US Patent Application, US20170234337A1. [web]
(1) Bartlett, N., Weaver, J. C., Tolley, M. T., Wood, R. J., Overvelde, J. T. B., Bertoldi, K., (2016). 3D Printed Hybrid robot. Worldwide Patent Application, WO2017058334A9. [web]
Conference Proceedings and Other Journals
(3) Arfaee, M., Kluin, J., Overvelde, J.T.B., (2023) Modeling the behavior of elastic pouch motors. IEEE Robosoft conference Proceedings
(2) Overvelde, J. T. B., (2018) Programeerbare Metamaterialen. NTvN, 243-245.
(1) Abramovic, V., Glynn, R., Overvelde, J. T. B., (2018) Edge of Chaos: Towards intelligent architecture through distributed control systems based on Cellular Automata. ACADIA conf. proc.
Documentaries, Exhibitions and Workshops
See also the website of Studio Overvelde.
(8) "Designing with Mathemagic" (Feb 2020), workshop at Amsterdam University of Applied Sciences, Amsterdam NL.
(7) “Bouw een wiskundige figuur” (Feb 2019), workshop and exhibit at NEMO, Amsterdam NL.
(6) "RainMaker" (Sep 2018), exhibition at FabLearn and Maker Faire, Eindhoven NL. Winner of the Maker of Merit Award.
(5) "Frankie - The artificial starfish" (Mar 2018 - Oct 2018), exhibition at Rijksmuseum Boerhaave, Leiden NL.
(4) "Edge of Chaos" (Dec 2017 - Jan 2019), exhibition on world tour at (WoeLab in Lomé TG, La Gaîté Lyrique in Paris FR; Cinekid in Amsterdam NL; KIKK Festival in Namur BE).
(3) "Morphing Crystals" (Dec 2017 - Apr 2019), exhibition at Rijksmuseum Boerhaave, Leiden NL.
(2) "10 Degrees" (Sep 2016 - Jan 2017), exhibition at Le Laboratoire, Cambridge US. [web]
(1) "The Origami Code" (2016), documentary by Francois-Xavier Vives, Dutch premiere INScience [web], aired NPO on 6 Nov. (min 32:49 - 35:01).
Selected Media Coverage
(62) Van Laake, L.C., "Zachte Robots Gebaseerd op een Sputterende Ketchupfles." BNR Radio 13 July. [web]
(61) Schenk, Dorine. (2022) "Sputterende Ketchupfles laat zachte robot bewegen en reageren." New Scientists 13 July. [web]
(60) Editors. (2022) "Zachte Robot Beweegt Dankzij Ventiel Ketchupfles.", De Ingenieur 11 July. [web]
(59) Schenk, Dorine. (2022) "Dode spin begint nieuw leven als mechanische robotgrijper." Het Parool 4 August. [web]
(58) Snellink, Marjolein. (2022) "Soft Hardware." NWO Resultaat 24 Januari. [web]
(57) Elisabeth van Nimwegen. (2021) “Van een chipszak tot een Nobelprijs voor softe robotica”, Atlas NTR 3 November. [web]
(56) Jordan Golson. (2021) “Five lines of code could change the way we think about AI.” inverse.com 12 May. [web]
(55) John timmer. (2021) “Programming a robot to teach itself how to move.” arstechnica.com 11 May. [web]
(54) Karlien Meinders. (2021) “Zo simple kan een autonoom en zelflerend robotje zijn.” BNR Radio 11 May. [web]
(53) Jim Heirbaut. (2021) “Eenvoudige robotjes leren onbewust samenwerken.” De Ingenieur 10 May. [web]
(52) Dijk, Pancras. (2020) "Als ideeën beginnen te stromen." De Ingenieur 12 November. [web] [web]
(51) Delbert, Caroline. (2020) "Morphing Materials." Scientific American April issue. [web]
(50) Mandemaker, Arnold. (2020) “Robothart moet levens redden.” Eindhovens Dagblad 4 February. [web]
(49) Burgess, Kaya. (2020) “Beat that: robotic heart aims to win competition for £30m grant.” The Times 23 January. [pdf] [web]
![[pdf]](https://overvelde.com/wp-content/uploads/2020/02/image004.jpg){kind=link}
(48) Bawden, Tom. (2020) “Revolutionary wireless ‘hybrid heart’ prototype for humans could be ready by 2028.” The I 23 January. [pdf] [web]
![[pdf]](https://overvelde.com/wp-content/uploads/2020/02/image005-1.jpg){kind=link}
(47) Bagot, Martin. (2020) “World’s first totally robotic heart will end need for transplants in 10 years.” The Mirror 23 January. [pdf] [web]
![[pdf]](https://overvelde.com/wp-content/uploads/2020/02/image006.jpg){kind=link}
(46) Knapton, Sarah. (2020) “Robo-heart could solve organ transplant crisis.” The Telegraph 23 January. [pdf] [web]
![[pdf]](https://overvelde.com/wp-content/uploads/2020/02/Big-Beat_Telegraph.jpg){kind=link}
(45) Spencer, Ben. (2020) “’Soft’ robotic heart that uses synthetic material combined with layer of lab-grown human cells could put an end to human transplants by 2028.” The Daily Mail 23 January. [pdf] [web]
![[pdf]](https://overvelde.com/wp-content/uploads/2020/02/Big-Beat_Daily-Mail.jpg){kind=link}
(44) Bagot, Martin. (2020) “Roboheart: Professor hopes save thousands of lives with world’s first ’hybrid organ’ by 2028.” The Express 23 January. [pdf]
![[pdf]](https://overvelde.com/wp-content/uploads/2020/02/Big-Beat_Express-scaled.jpeg){kind=link}
(43) Howe, Nick and Bundell, Shamini. (2019) "Podcast: A rapid, multi-material 3D printer, and a bacterium’s role in alcoholic hepatitis" Nature Podcast 13 November. [web]
(42) Noordermeer, Barbara. (2019) "Studeren in de VS? Deze Nederlanders vertellen hoe ze Harvard binnenkwamen" Intermediair 1 August. [web]
(41) Grob, Bart. (2018) "Het zachte robothart van Bas." De Vrolijke Frankenstein 16 March.
(40) Woo, Marcus. (2018) "Finding Future Tech in Ancient Art." Nova Next 24 January. [web]
(39) Waterval, Dirk. (2017) "Natuurkundige Bas Overvelde gaat het bouwen: een robotboom die tot bloei komt waar je bij staat." Trouw 11 November. [web]
(38) Overvelde, J. T. B. (2017). Programmeerbare Metamaterialen. Quantum Universe 19 September. [web]
(37) Van Calmthout, Martijn. (2017) "Aan tafel met Frankenstein - De gemaakte natuur." Talk show Museum Boerhaave - Nacht van Kunst en Kennis 16 September.
(36) Visscher, Marc-Robin. (2017) “Zacht robotisch kunsthart in de maak.” Radio show NPO1 Nieuws en Co 4 August. [web]
(35) Ikink, Harm. (2017) "Toekomstmaterialen." Hypothese 12 May. [pdf]
(34) Van Calmthout, Martijn. (2017) "Hogere knutselkunde." De Volkskrant 11 March. [web] [web]
(33) Beekhuis, Mark. (2016) "Een origami-materiaal dat geluid verandert." Radio show BNR Wetenschap vandaag 28 November. [web]
(32) Karhof, Joost. (2016) "Wetenschappers adopteren Origami." Radio show NPO1 Nieuws en Co 4 November. [web]
(31) Vives, Francois-Xavier. (2016) "The Origami Code." Documentary at Inscience Festival 2-6 November. [web]
(30) Aan de Brugh, Marcel. (2016) "Octopus als Robot." NRC Handelsblad and NRC Next 3 September. [pdf] [pdf]
(29) Van Kasteren, Joost. (2016) "Dichte muur krijgt gaten met een keertje vouwen." NRC Handelsblad 16 April. [pdf]
(28) Cookson, Clive. (2016) "Origami comes into the tech fold." Financial Times 26 March. [pdf]
(27) Hansman, Heather. (2016) "A New Material Could Make Medical Devices That Expand and Collapse." Smithsonian 18 March. [web]
(26) Joosten, Carla. (2016) "Zachte Robotica." Elsevier 17 March. [pdf]
(25) Knapton, Sarah. (2016) "Bizarre shape-shifting material invented by Harvard." The Telegraph 11 March. [web]
(24) Web editor (2016) "Researchers design versatile shapeshifting material." ResearchGate 11 March. [web]
(23) Ceurstemont, Sandrine. (2016) "Shape-shifting matter could let houses crumple themselves away." New Scientist 11 March. [web]
(22) Reader, Ruth. (2016) "Researchers Have Created a Shapeshifting Material Inspired by Origami." Mic 11 March. [web]
(21) Web editor (2016) "Harvard team develops origami-inspired 3D structural material." The Engineer 11 March. [web]
(20) Wassink, Jos. (2016) "Transforming materials." DELTA 11 March. [web]
(19) Burrows, Leah. (2016) "Transforming materials." Harvard News and Views 11 March. [web]
(18) Web editor (2015) "Delft Students Help Make More Dextrous Robots." TU Delft Robotics Institute 27 August. [web] and other TU Delft web publications [EWI] [LR] [3ME]
(17) Edelman, Peter. (2015) "Niet-lineair gedrag handig gebruikt in kunstmatige spier." Mechatronica & Machinebouw 21 August. [web]
(16) Wassink, Jos. (2015) "Ballooning muscles for robots." DELTA 20 August. [web]
(15) Web editor (2015) "Soft actuator could remove need for robotic tethers." The Engineer 18 August. [web]
(14) Burrows, Leah. (2015) "Controlling the uncontrollable." Harvard News and Views 17 August. [web]
(13) Wright, Katherine. (2015) "Runaway buckling." APS Physics 21 July. [web]
(12) Zegers, Gabby. (2015) "Metamaterial undermines 250-year-old construction principles" FOM 21 July. [web]
(11) Morad, Renee. (2015) "Jumping, Froglike Robot Takes a Big Leap Forward." Robotics, Discovery 9 July. [web]
(10) Ackerman, Evan. (2015) "3D-Printed Explosive Jumping Robot Combines Firm and Squishy Parts." IEEE Spectrum, 9 July. [web]
(9) Burrows, Leah. (2015) "Harvard Researchers Create Jumping Soft Robot Using 3-D Printer." Harvard Gazette 9 July. [web]
(8) Feltman, Rachel. (2015) "This Jumping, Squishy Robot Looks Like a Tiny UFO." Speaking of Science, The Washington Post 9 July. [web]
(7) Herkewitz, William. (2015) "Nearly Unbreakable Soft Robot Ignites Explosions to Jump." New Technology, Popular Mechanics 9 July. [web]
(6) Ball, Philip. (2014) "Soft-hearted Robots." News and Views, Nature Materials Vol. 13 April. [pdf]
(5) Martiradonna, Luigi. (2014) "Heart Twists." Research Highlight, Nature Materials Vol. 13 January. [pdf]
(4) Aan de Brugh, Marcel. (2014) "Een nieuwe hartkamer van zachte kunststof." NRC Handelsblad 28 February. [pdf]
(3) Kusek, Kristen. (2014), "Arti ficial muscles do the twist." Wyss Institute 26 February. [web]
(2) Bosman, Annemieke. (2013) "Vliegende Hollander" Transfer Magazine, 4. [pdf]
(1) Elshof, Loes. (2009) "Excellence Program" Delft University of Technology. [movie]
Invited Talks PI
(62) There’s no Silicon in these Silicone robots! Dutch Soft Robotics Symposium, Twente (NL)
(61) Harnessing Instabilities to Embody Intelligence in Soft Robots, IEEE Robosoft conference, Singapore (SG)
(60) Fluidic Sensing and Memory in Soft Robots, IEEE Robosoft conference, Singapore (SG)
(59) Embodied Fluidic Circuits to Control Soft Robots (2023), Physics colloquium, Eindhoven University of Technology, Eindhoven (NL)
(58) Embodying Intelligence inSoft Fluidic Robots (2023), Interactive Design, Eindhoven University of Technology, Eindhoven (NL)
(57) Continuous learning of emergent behavior in robotic matter (2022), UvA Soft Matter Seminar, Amsterdam (NL)
(56) Zachte Robots (2021) NWO, online (NL)
(55) Embodied fluidic circuits to control soft robots (2021), TU/e Polymer Technology group, online (NL)
(54) Embodied intelligence in soft robots (2021), IBEC – ICMS joint symposium, online (NL)
(53) Embodied fluidic circuits to control soft robots (2021), Princeton University/ PRISM, online (US)
(52) Embodied fluidic circuits to control soft robots (2020), BioRob Cardio Workshop, online (US)
(51) Embodied fluidic circuits to control soft robots (2020), ETH Zurich seminar series on robotics, online (CH)
(50) Embodied fluidic circuits to control soft robots (2020), Lunch meeting D&C, online (NL)
(49) Rational design of reconfigurable and multistable metamaterials (2020), INM virtual mini-symposium, online (GE)
(48) Continuous learning of emergent behavior in robotic matter (2020), Robosoft, online (US)
(47) Adaptive behavior through decentralized learning in soft robotic matter (2020), Living Machines Conference, online (GE)
(46) Soft Robots (2019), Topics in IC, Utrecht (NL)
(45) Origami-inspired Mechanical Metamaterials (2019), FlexMOF, Dresden (GE)
(44) Soft Robotic Matter (2019), ICMS, Eindhoven (NL)
(43) Embedded Control of Soft Robots (2019), General Physics Colloquium, Groningen (NL)
(42) Embedded Control of Soft Robots (2019), ESA, Noordwijk (NL)
(41) Embedding Fluid Logic and Self-learning in Soft Robotic Matter (2019), livMatS, Freiburg (GE)
(40) Origami-inspired Materials and Robots (2019) Royal Academy of Art, Den Haag (NL)
(39) Transforming Materials (2019) Gordon Conference Crystal Growth and Assembly, Manchester (US)
(38) Soft Robotic Matter (2019) Hyber, Helsinki (FI)
(37) Sequential Actuation of Soft Robots by Harnessing Soft Fluidic Networks (2019) ICMS Outreach Symposium, Eindhoven (NL)
(36) Origami-inspired Materials and Robots (2019) Studium Generale, Groningen (NL)
(35) Computational Design of Multistable Prismatic Architected Materials (2018) ASME IMECE, Pittsburgh (US)
(34) RainMaker: from Mechanical Metamaterial to Interactive Art Installation (2018) Masterclass FabLearn, Eindhoven (NL)
(33) Programming the Response of Fluidic Soft Actuators by Harnessing Nonlinearities (2018) The Hamlyn Symposium on Medical Robotics, London (UK)
(32) Transforming Materials (2018) ReMAR, Delft (NL)
(31) Mathemagical interconnections (2018) Equinix, Amsterdam (NL)
(30) Van Origami-materialen naar Zachte Robots (2018) Nationale Wiskundedagen, Noordwijkerhout (NL)
(29) Rational Design of Reconfigurable Architected Materials (2018) Physics@Veldhoven, Veldhoven (NL)
(28) Finding the Mechanically Stable States of Prismatic Architected Materials (2018) Gordon Conference Multifunctional Materials and Structures, Ventura (US)
(27) Van Origami-materialen naar Zachte Robots (2017) SURFnet, Utrecht (NL)
(26) Transforming Materials (2017) Ars et Mathesis, Utrecht (NL)
(25) Embracing compliance and instabilities in mechanical systems (2017) ARCNL, Amsterdam (NL)
(24) What can we learn from crumpling a piece of paper? (2017) TEDxGroningen, Groningen (NL) [web]
(23) Guest Lecturer in Robotic Building - Media Studies (2017) School of Architecture, TU Delft (NL)
(22) Van Origami-materialen naar Zachte Robots (2017) AMOLF Open Dag, Amsterdam (NL)
(21) Magic Materials make Soft Robots (2017) HMC Zomeracademie, Rotterdam (NL)
(20) Rational Design of Reconfigurable Architected Materials (2017) Soft and Biological Matter Seminar, Leiden (NL)
(19) Magic Materials make Soft Robots (2017) PINC.18 Conference, Utrecht (NL) [web]
(18) Rational Design of Reconfigurable Architected Materials (2017) SMS Europe, Paris (FR)
(17) Rational Design of Reconfigurable Devices and Architected Materials (2017) AMOLF public colloquium, Amsterdam (NL)
(16) Soft Robotic Matter (2017) ICMS Complexity Science Winter School, Eindhoven (NL)
(15) Rational Design of Reconfigurable Prismatic Architected Materials (2017) 4D Printing & Meta Materials Conference, Sittard-Geleen (NL)
(14) Soft Robotic Matter (2017) Physics@Veldhoven, Veldhoven (NL)
(13) Embracing Compliance and Instabilities to Achieve Function in Mechanical Metamaterials and Devices (2016) Soft Matter Meeting, Wageningen (NL)
(12) Soft Robotic Matter (2016) AMOLF Friday Seminar, Amsterdam (NL)
(11) Embracing Compliance in Robots to Achieve Function (2016) 3D Printing Materials Conference, Maastricht (NL)
(10) Controlling Soft Structures and Devices by Embedded Actuation and Sensing (2015) Designer Matter, AMOLF (NL)
(9) Actuated Materials, Smart Actuated Structures and Devices that Harness Compliance and Instabilities (2015) Aerospace Structures and Computational Mechanics, TU Delft (NL)
(8) Soft Matter Physics Seminar: Mechanical Metamaterials that harness instabilities and folding (2015) Institute Lorentz, Leiden University (NL)
(7) MSME Year End Event: From Origami to Transformable Metamaterials (2015) School of Engineering and Applied Sciences, Harvard University (US)
(6) Guest Lecturer in Computational Material Distributions and Gradients of Compliance (2015) Graduate School of Design, Harvard University (US)
(5) Soft Robotics General Meeting: Finite Element Analysis of Soft Liquid Embedded Strain Sensors (2014) Wyss Institute for Biologically Inspired Engineering, Harvard University (US)
(4) Mech & Math: Instabilities in Pressure-Volume relation of inflatable Membranes (2014) School of Engineering and Applied Sciences, Harvard University (US)
(3) Guest Lecturer in Computational Material Distributions and Gradients of Compliance (2014) Graduate School of Design, Harvard University (US)
(2) Mech & Math: Shape Optimization of Soft Periodic Structures (2012) School of Engineering and Applied Sciences, Harvard University (US)
(1) Abaqus Masterclass (2010) School of Engineering and Applied Sciences, Harvard University (US)
Conferences and Colloquia
(90) Comoretto, A., Overvelde, J.T.B., (2023) Fluidic memory and sensing for autonomous soft robots, Autonomous Matter Symposium @AMOLF, Amsterdam, NL. Poster.
(89) Schomaker, M., Picella, S., Kung, A., Van Laake, L.C., Overvelde, J.T.B., (2023) Decentralized control in soft robots: distributing the brain over the body, Autonomous Matter Symposium @AMOLF, Amsterdam, NL. Poster.
(88) Ducarme, P., Weber, B., Van Hecke, M., Overvelde, J.T.B., (2023) Unique structural functions enabled by a novel mechanical instability, Autonomous Matter Symposium @AMOLF, Amsterdam, NL. Poster.
(87) Mohanty, S., Overvelde, J.T.B., (2023) Bridging the size-gap in soft robots, Autonomous Matter Symposium @AMOLF, Amsterdam, NL. Poster.
(86) Van Riet, K., Zou, S., Overvelde, J.T.B., (2023) Soft Circuits Toolkit, Autonomous Matter Symposium @AMOLF, Amsterdam, NL. Poster.
(85) Overvelde, J.T.B., (2022) Towards Autonomous Soft Robots by Using Smart Fluidic Circuits, Soft Robotics Summer School, Delft, NL. Presentation.
(84) Schomaker, M., Picella, S., Kung, A., Van Laake, L.C., Overvelde, J.T.B., (2022) Decentralized control in soft robots: distributing the brain over the body, Klein Colloquium @ AMOLF, Amsterdam, NL. Presentation.
(83) Comoretto, A., Overvelde, J.T.B., (2022) Fluidic memory and sensing for autonomous soft robots, GRC Gordon Robotics, Ventura, US. Poster.
(82) Schomaker, M., Picella, S., Kung, A., Van Laake, L.C., Overvelde, J.T.B., (2022) Decentralized control in soft robots: distributing the brain over the body, GRC Gordon Robotics, Ventura, US. Poster.
(81) Ducarme, P., Weber, B., Van Hecke, M., Overvelde, J.T.B., (2022) Design of a mechanical metamaterial with a negative-displacement transition, ASML Tech Meeting, Veldhoven, NL. Presentation.
(80) Picella, S., Overvelde, J.T.B., (2022) Towards emergent behavior in modular soft robots, ICMS Annual Symposium, Eindhoven, NL. Poster.
(79) Zou, S., De Vries, J., Picella, S., Kortman, V., Sakes, A., Overvelde, J.T.B., (2022) Can a Soft Actuator Be a Sensor? Klein Colloquium @AMOLF, Amsterdam, NL. Presentation.
(78) Schomaker, M., Picella, S., Kung, A., Van Laake, L.C., Overvelde, J.T.B., (2023) Decentralized control in soft robots: distributing the brain over the body, APS March Meeting. Las Vegas, US. Presentation.
(77) Comoretto, A., Overvelde, J.T.B., (2023) Fluidic memory and sensing for autonomous soft robots, APS March Meeting, Las Vegas, US. Presentation.
(76) Ducarme, P., Weber, B., Van Hecke, M., Overvelde, J.T.B., (2023) Exotic properties enabled by counter-snapping instabilities, APS March Meeting, Las Vegas, US. Presentation.
(75) Picella, S., Van Riet, K., Overvelde, J.T.B., (2023) Endowing soft robots with counting capabilities, APS March Meeting, Las Vegas, US. Presentation.
(74) Arfaee, M., Kluin, J., Overvelde, J.T.B., (2023) Modeling the behavior of elastic pouch motors, IEEE Robosoft conference, Singapore, SG. Presentation.
(73) Overvelde, J.T.B., (2022) Soft Robotic Matter group, Shaping the Future of Robotics through Material Innovation, Kreuth, DE. Presentation.
(72) Comoretto, A., Overvelde, J.T.B., (2022) Smart fluidic circuits for electronics-free untethered soft robots, APS March Meeting 2022, Chicago, US. Presentation.
(71) Comoretto, A., Overvelde, J.T.B., (2022) Fluidic memory and sensing for autonomous soft robots, ESMC 2022, Galway, IE. Presentation.
(70) Comoretto, A., Overvelde, J.T.B., (2022) Fluidic memory and sensing for autonomous soft robots, Dutch Soft Robotics Symposium 2022, Delft, NL. Presentation.
(69) Schomaker, M., Picella, S., Kung, A., Van Laake, L.C., Overvelde, J.T.B., (2022) Decentralized control in soft robots: distributing the brain over the body, APS March Meeting, Chicago, US. Presentation.
(68) Zou, S., De Vries, J., Picella, S., Kortman, V., Sakes, A., Overvelde, J.T.B., (2022) A Universal Fluidic Sensing Strategy for Soft Robots, Dutch Soft Robotics Symposium, Delft, NL. Presentation.
(67) Zou, S., Overvelde, J.T.B., (2022) Towards Soft Autonomous Robots with Smart Fluidic Circuits, 2022 Shaping the Future of Robotics through Material Innovation, Kreuth, DE. Poster.
(66) Zou, S., De Vries, J., Picella, S., Kortman, V., Sakes, A., Overvelde, J.T.B., (2022) Can a Soft Actuator Be a Sensor? 31st Dutch Soft Matter Meeting, Delft, NL. Presentation.
(65) Van Laake, L.C., Overvelde, J.T.B. (2022) Reprogrammable Sequential Activation of soft Actuators, IEEE Robosoft conference. Edinburgh, IE. Presentation.
(64) Van Laake, L.C., Overvelde, J.T.B. (2022) Non-linear Fluidic Control Circuits Enable Autonomy in Soft Robotics, International Workshop on Embodied Intelligence. Online Presentation.
(63) Van Laake, L.C., Overvelde, J.T.B. (2022) Experimental Characterization and Numerical Simulation of Soft total Artificial Hearts, ESMC, Ireland. Presentation.
(62) Van Laake, L.C., Overvelde, J.T.B. (2022) Fluidic Control of Soft Robots for Future Medical Applications, HTRIC kick-off event, Groningen, NL. Invited Presentation.
(61) Zou, S., De Vries, J., Picella, S., Kortman, V., Sakes, A., Overvelde, J.T.B., (2022). Can a soft actuator be a sensor. Dutch Soft Matter Meeting. Delft, NL. Presentation.
(60) Zou, S., De Vries, J., Picella, S., Kortman, V., Sakes, A., Overvelde, J.T.B., (2022). Can a soft actuator be a sensor. Klein Colloquium @AMOLF. Amsterdam, NL. Presentation.
(59) Schomaker, M., Picella, S., Kung, A., Van Laake, L.C., Overvelde, J.T.B., (2022). Towards emergent control with minimal resources. Klein Colloquium @AMOLF. Amsterdam, NL. Presentation.
(58) Comoretto, A., Van Laake, L.C., Overvelde, J.T.B., (2022) Smart fluidic circuits for electronics-free untethered soft robots. APS March meeting . Chicago, US. Presentation.
(57) Schomaker, M., Picella, S., Kung, A., Van Laake, L.C., Overvelde, J.T.B., (2022). Harnessing stigmergy for emergent adaptive control, in soft modular systems. APS March meeting . Chicago, US. Presentation.
(56) Arfaee, M., Overvelde, J.T.B., Kluin, J., (2021). A soft robotic fluidic transmission systems. ICTAM, US. Online poster
(55) Van Laake, L.C., Overvelde, J.T.B., (2021). A heartbeat for soft robots. Physics@Veldhoven, Veldhoven, NL Online presentation.
(54) Van Laake, L.C., Overvelde, J.T.B., (2021). Responsive and mechanically programmable sequential actuation of fluid-driven soft actuators. Conversations on Bioinspired Engineering. US. Online presentation
(53) Wruck, F., Overvelde, J.T.B., Tans, S., (2021). Stochastic Molecular Matter. ICMS annual symposium TU/e. NL. Online poster.
(52) Schomaker, M., Picella, S., Overvelde, J.T.B., (2021). Towards the design of emergent phenomena in robotic materials. ICMS annual symposium TU/e. NL. Online poster.
(51) Schomaker, M., Comoretto, A., (2021). Soft robotic research at AMOLF. AUC springboard event. NL. Online poster.
(50) Arfaee, M., Overvelde, J.T.B., Kluin, J., (2021). A soft robotic fluidic transmission systems. SES, US. Online poster
(49) Van Laake, L.C., De Vries, J., Malek Kani, S., Overvelde, J.T.B., (2021). Responsive and mechanically programmable sequential actuation of fluid-driven soft actuators. SES. US. Online poster.
(48) Schomaker, M., Picella, S., Overvelde, J.T.B., (2021). Towards decentralized emergent control in dynamic locomotion tasks. SES, US. Online poster.
(47) Iniguez-Rabago, A., Overvelde, J. T. B., (2021). Elastic origami metamaterials and how to control their folding behavior. EMI2021-IC. Durham, UK. Online. Presentation.
(46) Iniguez-Rabago, A., Overvelde, J. T. B., (2021). Elastic origami metamaterials and how to control their folding behavior. Physics@Veldhoven. Veldhoven, NL. Online. Presentation.
(45) Van Laake, L., Malek Kani, S., Overvelde, J.T.B., (2020). Programming Soft Robots Using Non-linear Fluidic Circuits. Physics@Veldhoven. Veldhoven, NL. Poster.
(44) Iniguez-Rabago, A., Milleret, A., Overvelde, J.T.B., (2020). Towards Origami Tessellations with Bistable Folds. Gordon Conference - Multifunctional Materials and Structures. Ventura, USA. Poster.
(43) Oliveri, G., Van Laake, L., Carissimo, C., Miette, C., Overvelde, J. T. B., (2020). Decentralized Reinforced Learning of Emergent Behavior in Robotic Matter. Gordon Conference - Multifunctional Materials and Structures, VenturaA USA. Poster.
(42) Oliveri, G., Overvelde, J. T. B., (2020). Inverse Design of Mechanical Metamaterials that Undergo Buckling. Gordon Conference - Multifunctional Materials and Structures, Ventura, USA. Poster.
(41) Van Laake, L., Malek Kani, S., Overvelde, J.T.B., (2020). Programming Soft Robots Using Non-linear Fluidic Circuits. Gordon Conference - Robotics. Ventura, USA. Poster.
(40) Oliveri, G., Van Laake, L., Carissimo, C., Miette, C., Overvelde, J. T. B., (2020). Decentralized Reinforced Learning of Emergent Behavior in Robotic Matter. Gordon Conference - Robotics, Ventura, USA. Poster.
(39) Van Laake, L., Malek Kani, S., Overvelde. J. T. B., (2019). Towards Fully Soft Robots Using Fluidic Circuits. Chains. Veldhoven, Netherlands. Invited presentation.
(38) Oliveri, G., Van Laake, L., Carissimo, C., Miette, C., Overvelde, J. T. B., (2019). Adaptive and Self-learning Robotic Matter. SES. St. Louis, United States. Presentation.
(37) Van Laake, L., Malek Kani, S., Overvelde, J. T. B., (2019). Responsive and Mechanically Programmable Sequential Actuation of Fluid-driven Soft Actuators. SES. St. Louis, United States. Presentation.
(36) Van Laake, L., Overvelde. J. T. B., (2019). A Heartbeat for Soft Robots. Klein Colloquium @AMOLF. Amsterdam. Presentation.
(35) Oliveri, G., Van Laake, L., Carissimo, C., Miette, C., Overvelde, J. T. B., (2019). Decentralized Reinforced Learning of Emergent Behavior in Robotic Matter. Soft Matter Meeting. Utrecht, Netherlands. Soundbite presentation.
(34) Iniguez-Rabago, A., Overvelde, J.T.B., (2019). Boundary Effects in Origami Tessellations with Bistable Folds. Soft Matter Meeting. Utrecht, Netherlands. Soundbite presentation.
(33) Van Laake, L., Overvelde. J. T. B., (2019). A Heartbeat for Soft Robots. Soft Matter Meeting. Eindhoven, Netherlands. Soundbite presentation.
(32) Van Laake, L., Iniguez-Rabago, A., Oliveri, G., (2019). Soft Robotics Research at AMOLF. Springboard 2019 @AUC. Amsterdam, Netherlands. Invited presentation.
(31) Van Laake, L., Overvelde. J. T. B., (2019). Soft Fluidic Networks Driving Soft Robots. Workshop ESPCI-UVA-AMOLF. Amsterdam, Netherlands. Invited presentation.
(30) Van Laake, L., Overvelde, J. T. B., (2019). Mechanically Programmable Sequential Actuation of Fluid-driven Soft Actuators. APS March Meeting. Boston, United States. Presentation.
(29) Iniguez-Rabago, A., Li, Y., Overvelde, J. T. B., (2019). Computational Design of Mechanically Multistable Prismatic Metamateirals. APS March Meeting. Boston, United States. Presentation.
(28) Oliveri, G., Overvelde, J. T. B., (2019) Inverse Design of Mechanical Metamaterials that Harness Instabilities. APS March Meeting. Boston, United States. Presentation.
(27) Oliveri, G., Overvelde, J. T. B., (2019) Inverse Design of Mechanical Metamaterials that Harness Instabilities. Physics@Veldhoven. Veldhoven, Netherlands. Poster.
(26) Oliveri, G., Overvelde, J. T. B., (2018). Mechanical Metamaterials: Shape Matters. Future Materials – Koers Lustrum Talks 2018. Eindhoven, Netherlands. Invited presentation.
(25) Oliveri, G., Overvelde, J. T. B., (2018) Inverse design of mechanical metamaterials that harness instabilities. SES. Madrid, Spain. Presentation.
(24) Iniguez-Rabago, A., Li, Y., Overvelde, J. T. B., (2018). Finding the Mechanically Stable States of Prismatic Architected Materials. Solvay. Brussel, Belgium. Presentation.
(23) Oliveri, G., Overvelde, J. T. B., (2018) Reprogramming the elastic properties of mechanical metamaterials by amplifying imperfections. Solvay. Belgium, United States. Presentation.
(22) Iniguez-Rabago, A., Li, Y., Overvelde, J. T. B., (2018). Finding the Mechanically Stable States of Prismatic Architected Materials. Klein Colloquium @AMOLF. Amsterdam. Presentation.
(21) Iniguez-Rabago, A., Li, Y., Overvelde, J. T. B., (2018). Finding the Mechanically Stable States of Prismatic Architected Materials. APS March Meeting. Los Angeles, United States. Presentation.
(20) Oliveri, G., Overvelde, J. T. B., (2018) Reprogramming the elastic properties of mechanical metamaterials by amplifying imperfections. APS March Meeting. Los Angeles, United States. Presentation.
(19) Iniguez-Rabago, A., Li, Y., Overvelde, J. T. B., (2018). Finding the Mechanically Stable States of Prismatic Architected Materials. Physics@Veldhoven. Veldhoven, Netherlands. Poster. [top three in both categories]
(18) Iniguez-Rabago, A., Li, Y., Overvelde, J. T. B., (2017). Finding the Mechanically Stable States of Prismatic Architected Materials. Soft Matter Meeting. Enschede, Netherlands. Soundbite presentation.
(17) Oliveri, G., Overvelde, J. T. B., (2017) Reprogramming the elastic properties of mechanical metamaterials by amplifying imperfections. Soft Matter Meeting. Enschede, Netherlands. Soundbite presentation.
(16) Overvelde, J. T. B., Weaver, J., Hoberman C., Bertoldi, K., (2017) Rational Design of Reconfigurable Architected Materials. Metamaterials Conference, Marseille, France. Presentation.
(15) Overvelde, J. T. B., Weaver, J., Hoberman C., Bertoldi, K., (2017). Rational Design of Reconfigurable Prismatic Architected Materials. American Physical Society Meeting. New Orleans, United States. Presentation.
(14) Overvelde, J. T. B., Dykstra, D. M. J., de Rooij, R., Weaver, J., Bertoldi, K., (2017). Tension Instability in a thick elastic body. American Physical Society Meeting, New Orleans, United States. Presentation.
(13) Oliveri, G., Overvelde, J. T. B., (2017). Reprogramming the elastic properties of mechanical metamaterials by amplifying imperfections. ICMS Complexity Science Winter School, Eindhoven, Netherlands. Poster.
(12) Overvelde, J. T. B., Dykstra, D. M. J., de Rooij, R., Weaver, J., Bertoldi, K., (2016). Tensile Instability in a Thick Elastic Body. Soft Matter Meeting. Amsterdam, Netherlands. Soundbite presentation. [pdf]
(11) Overvelde, J. T. B., de Jong, T. A., Becerra S. A., Shevchenko, Y., Whitesides, G. M., Weaver, J., Hoberman C., Bertoldi, K., (2015). Transformable origami-inspired prismatic metamaterials. Wyss retreat. Boston, United States. Movie and demo.
(10) Overvelde, J. T. B., Bertoldi, K., (2015). Amplifying the Response of Soft Actuators by Harnessing Instability. New England Workshop on the Mechanics of Materials and Structures. Boston, United States. Movie.
(9) Overvelde, J. T. B., Kloek, T., D'haen J., Bertoldi, K., (2014). Harnessing Instability in Soft Actuators. AMOLF Designer Matter Workshop International Mechanical Engineering Conference. Amsterdam, The Netherlands. Presentation. [pdf]
(8) Overvelde, J. T. B., de Jong, T. A., Weaver, J., Hoberman, C., Bertoldi, K., (2015). Actuated Origami-like Structures with Tunable Volume and Stiffness. APS March Meeting. San Antonio, United States. Presentation. [pdf]
(7) Overvelde, J. T. B., Kloek, T., D'haen J., Bertoldi, K., (2014). Harnessing Instability in Soft Actuators. ASME International Mechanical Engineering Conference. Montréal, Canada. Presentation. [pdf]
(6) Overvelde, J. T. B., Bertoldi, K., (2014). Putting Soft Sensors to the Test. New England Workshop on the Mechanics of Materials and Structures. Amherst, United States. Movie.
(5) Overvelde, J. T. B., Bertoldi, K., (2013). Topology Optimization of Soft Actuators: Designing Stretchable Inflatable Membranes. ASME International Mechanical Engineering Conference. San Diego, United States. Presentation. [pdf]
(4) Overvelde, J. T. B., Shan, S., Bertoldi, K., (2012). Compaction Through Buckling in 2D Periodic, Soft and Porous Structures: Effect of Pore Shape. New England Workshop on the Mechanics of Materials and Structures. Providence, United States. Movie.
(3) Overvelde, J. T. B., Langelaar M., Keulen, F. van, (2012). The Moving Node Approach in Topology Optimization - An Exploration to a Flow-inspired Meshless Method-based Topology Optimization Method. New England Workshop on the Mechanics of Materials and Structures. Providence, United States. Poster. [pdf]
(2) Overvelde, J. T. B., Shan, S., Bertoldi, K., (2012). Non-linear Response of Soft Porous Structures: Effect of Pore Shape on their Response. Society of Engineering Science - 49th Annual Technical Meeting. Atlanta, United States. Presentation. [pdf]
(1) Overvelde, J. T. B., Langelaar, M., Keulen, F. van, (2012). Influence of the Nodal Distribution on Element-Free Galerkin Accuracy in a Topology Optimization Context. European Congress on Computational Methods in Applied Sciences and Engineering. Vienna, Austria. Presentation. [pdf]
Dissertations
Submitted
Van Laake, L. (2023) A Hearbeat for Soft Robots, PhD Dissertation - Eindhoven University of Technology and AMOLF.
Published
Iniguez-Rabago, A. (2021) Folding behavior of elastic origami metamaterials, PhD Dissertation - Eindhoven University of Technology and AMOLF.
Oliveri, G. (2021). Designing Optimal Behaviour in Mechanical and Robotic Metamaterials. PhD Dissertation - Eindhoven University of Technology and AMOLF.
Overvelde, J.T.B., (2016). Embracing Compliance and Instabilities to Achieve Function in Mechanical Metamaterials and Devices. PhD Dissertation - Harvard University. [pdf]
Overvelde, J.T.B., (2012). The Moving Node Approach in Topology Optimization - An Exploration to a Flow-inspired Meshless Method-based Topology Optimization Method. Master's Thesis - Delft University of Technology. [pdf]