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Waal, Mees (author)Cable Driven Parallel Robots, or CDPRs, might provide art historians and curators with an improved automated way of scanning 3D art objects. This application requires CDPRs to rotate around a 3D object with large panning and tilting, while avoiding collisions. While no designs exist for this purpose, this article investigates and proposes new...master thesis 2021
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Basu, Devayan (author)Numerous High Pressure Gas Cables (HPGC) had been laid decades back by TenneT, the TSO of Netherlands and parts of Germany. Now, when TenneT decided to replace or increase the loadings on such cables, the question appears how would they behave to such temperature profiles and also the progress of their aging under such conditions. Only if a...master thesis 2021
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van der Stigchel, Pim (author)In cable driven parallel robots (CDPRs), the end effector or moving platform is actuated by multiple cables in parallel that are wound on winches, which are located on a frame. Compared to classical parallel robots, such as the Delta robot, CDPRs have a lower inertia due to low cable masses. Therefore, they can perform high speed motions with a...master thesis 2021
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Diepenmaat, Frank (author)Offshore contractors use special cable laying vessels (CLV’s) in order to install subsea power cables, which transport offshore generated energy. Workability studies are performed to evaluate whether operations can be performed or not. These workability studies are subsequently a combination between operability assessments (performed in OrcaFlex...master thesis 2021
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van Zaanen, Pam (author)In the history of medicine and surgery, a slow transition is made from open surgery to minimally invasive surgery. Nowadays, natural orifice transluminal endoscopic surgery (NOTES) is investigated and tested. A NOTES procedure includes flexible instruments, which are inserted through natural orifices such as the mouth, nose, anus or vagina. The...master thesis 2021
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Fang, Juan (author), Haldimann, Michael (author), Marchal Crespo, L. (author), Hunt, Kenneth J. (author)In a parallel development to traditional rigid rehabilitation robotic systems, cable-driven systems are becoming popular. The robowalk expander product uses passive elastic bands in the training of the lower limbs. However, a well-controlled assistance or resistance is desirable for effective walking relearning and muscle training. To achieve...journal article 2021
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Geerlings, Nicole M.J. (author), Geelhoed, Jeanine S. (author), Vasquez Cardenas, D. (author), Kienhuis, Michiel V.M. (author), Hidalgo-Martinez, Silvia (author), Boschker, H.T.S. (author), Middelburg, Jack J. (author), Meysman, F.J.R. (author), Polerecky, Lubos (author)Cable bacteria are multicellular, Gram-negative filamentous bacteria that display a unique division of metabolic labor between cells. Cells in deeper sediment layers are oxidizing sulfide, while cells in the surface layers of the sediment are reducing oxygen. The electrical coupling of these two redox half reactions is ensured via long...journal article 2021
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Fang, P. (author), Jiang, X. (author), Hopman, J.J. (author), Bai, Yong (author)Submarine power cables are considered lifelines in wind farm engineering, playing a key role in transporting electric current produced by wind turbines or wave converter. Cables inevitably confront combined loadings in deep-sea areas, affecting the integrity and safety during their installation and application. In this paper, the mechanical...journal article 2021
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Mier Escurra, G.A. (author), Mor, A. R. (author), Castro Heredia, L.C. (author), Vaessen, P.T.M. (author)Space charges are one of the main challenges facing the constantly increasing use of extruded high voltage direct current (HVDC) cables. The Pulsed Electro-Acoustic (PEA) method is one of the most common procedures for space charge measurements of insulation. One issue with the PEA method is distortion due to the crosstalk between the applied...journal article 2021
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van Willigen, D.M. (author), Kang, E. (author), Janjic, Jovana (author), Noothout, E.C. (author), Chang, Z.Y. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)This article presents an application-specific integrated circuit (ASIC) designed for intra-vascular ultrasound imaging that interfaces 64 piezoelectric transducer elements to an imaging system using a single micro-coaxial cable. Thus, it allows a single-element transducer to be replaced by a transducer array to enable 3-D imaging. The 1.5-mm...journal article 2021
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Dittli, Jan (author), Hofmann, Urs A.T. (author), Bützer, Tobias (author), Smit, G. (author), Lambercy, Olivier (author), Gassert, Roger (author)Wearable robots assist individuals with sensorimotor impairment in daily life, or support industrial workers in physically demanding tasks. In such scenarios, low mass and compact design are crucial factors for device acceptance. Remote actuation systems (RAS) have emerged as a popular approach in wearable robots to reduce perceived weight...journal article 2021
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Mier Escurra, G.A. (author), Mor, A. R. (author)The Pulsed Electroacoustic Method is one of the most common methods for space charge measurements in solid dielectrics. This method involves applying a voltage pulse across the dielectric under test, which modifies the electrostatic force balance across the dielectric, creating an acoustic signal that can be measured externally. This work...conference paper 2021
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Cabboi, A. (author), Gentile, Carmelo (author), Zonno, Giacomo (author)A radar equipment was used to measure the deflection response of bridge stay-cables induced by ambient and traffic excitation. After a concise description of the radar equipment and a summary of advantages and potential issues of the microwave technology, the paper focuses on the experimental tests performed on all stay-cables of the curved...conference paper 2021
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Gopalan Achary Venkitachalam, Gopan (author)A gap in the understanding of offshore wind submarine power cables is responsible for 70-80 % of failures in recent times. The failures originate from the phases of design, manufacturing, installation and operations. Joint industry collaborations such as the Cable Lifetime Monitoring project that form the background for this thesis, are aimed at...master thesis 2020
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Kulkarni, Devendra (author)The Medium Voltage (MV) network in the Netherlands is almost entirely composed of underground cables. The failure statistics show that the interruptions in the medium voltage have a high contribution in the mean outage time per year per customer. The interruptions in the medium voltage grid are often caused by failure of circuit components...master thesis 2020
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Ghassemi, Amir (author)Destructive consequences of trapped space charges within HVDC coaxial cable insulation, such as accelerated aging, degradation, and breakdown, are some of the most significant challenges that manufacturers and users usually come up with. Pulsed Electro-Acoustic (PEA) method is a widely-used method for space charge detection and measurement, in...master thesis 2020
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Lammers, Anneli (author)Van Oord is active in the subsea cable installation industry and executes most of their cable lay projects with their cable laying vessel: The Nexus. In this thesis the focus lies on the normal lay phase of the cable installation, which comprises the phase when the vessel is pulling out the cable and putting it down on the seabed following the...master thesis 2020
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Santosh, Adeep (author)In the transmission and distribution network of the future, there is expected to be a mix of both Alternating Current (AC) and Direct Current (DC). In the high voltage division owing to technical and economic aspects, there is a wider use of High Voltage Direct Current (HVDC) instead of High Voltage Alternating Current (HVAC). However, when...master thesis 2020
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Jonoski, Ilin (author)Over the last decade, the demand for offshore power cables has increased significantly due to, in particularly, the emergence of offshore wind. Despite this growth, industry-wide rules and guidelines to analyse fatigue during cable installation operations are yet to be developed, even though fatigue can become an important...master thesis 2020
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Wijs, R. J.A. (author), Nane, G.F. (author), Leontaris, G. (author), Van Manen, T. R.W. (author), Wolfert, A.R.M. (author)Utility operators must rely on predictive analyses regarding the availability of their subsurface assets, which highly depend on damage by increasing amounts of excavation work. However, straightforward use of standard statistical techniques, such as logistic regression or Bayesian logistic regression, does not allow for accurate predictions...journal article 2020