Channel - 3mE
14-11-2024 08:14:13
Channel Videos
Advances in Safety and Security of Cyber-Physical Systems - Sliding Mode Observers, Coalitional Control and Homomorphic Encryption
T. Keijzer
13-2-2023 08:25:00
An absorbing boundary condition for wave-current flow simulations in maritime applications
X. Chang
20-5-2021 09:55:00
Cavitation implosion loads from energy balance considerations in numerical flow simulations
S. Schenke
17-9-2020 07:25:00
Cleavage Fracture Micromechanisms of High Strength Steel and its Heat-Affected Zones
V. Morete Barbosa Bertolo
24-3-2023 08:25:00
Control of Propeller Cavitation in Operational Conditions
Dienstomstandigheden kunnen een groot effect hebben op het gedrag van een scheepsvoortstuwingsinstallatie. Toename van de scheepsweerstand leidt bijvoorbeeld tot een hogere motorbelasting, en kan gemakkelijk leiden tot een afname van de cavitatie inceptie snelheid in vergelijking met vlak water omstandigheden. Variaties in propeller instroomveld door scheepsbewegingen, golven en manoeuvres hebben ook effect op de motorbelasting en op propeller cavitatie. Deze dissertatie behandeld de ontwikkeling van een voortstuwingsregelsysteem met als regeldoel het vergroten van de cavitatie-vrije tijd in dienstomstandigheden, terwijl motoroverbelasting wordt voorkomen en het manoeuvreergedrag acceptabel blijft. Het ontwikkelde voortstuwingsregelsysteem is uitgebreid getest in een simulatieomgeving voordat ware grootte proeven in februari 2009 uitgevoerd zijn aan boord van een fregat van de Koninklijke Marine. De meetresultaten worden gepresenteerd, inclusief foto's die het cavitatie gedrag van de propellers in dienstomstandigheden laten zien.
A. Vrijdag
30-6-2009 11:30:00
Desulphurisation in 21st century iron- and steelmaking
F.N.H. Schrama
4-10-2021 12:25:00
Development and Evaluation of a Motorcycle Riding Simulator for Low Speed Maneuvering
M. Grottoli
19-4-2021 14:55:00
Diffuse Reflectance Spectroscopy for Spine-Surgical Guidance
M.S. Losch
9-12-2024 08:25:00
Dynamic fleet management for autonomous vehicles: Learning- and optimization-based strategies
B. Alves Beirigo
9-3-2021 10:55:00
Dynamics of diamagnetically levitating resonators
X. Chen
1-3-2023 08:25:00
Efficient Thermal Modeling and Topology Optimization For Additive Manufacturing
R. Ranjan
27-3-2023 07:25:00
Elevated Pressure Electrochemical CO2Rreduction
N. Girichandran
25-9-2024 14:55:00
Energy Invariant Mechanisms
P.R. Kuppens
15-6-2021 12:25:00
Energy-consistent formulations of the one-dimensional two-fluid model
J.F.H. Buist
3-9-2024 12:25:00
Equilibrium seeking in games under pertial-decision information
M. Bianchi
24-2-2023 13:25:00
Extrusion-based 3D printing of biodegradable porous iron for bone substitution
N.E. Putra
14-3-2023 08:25:00
Forces in the shoulder joint: On validation of Musculoskeletal shoulder models
Forces in the shoulder joint: On validation of Musculoskeletal shoulder models
Voor verschillende toepassingen is er grote vraag naar gedetailleerde informatie over spierkrachten in het menselijke bewegingsapparaat. Deze krachten kunnen echter nauwelijks in-vivo gemeten worden. Tot op heden zijn spierskeletmodellen het beste alternatief voor directe spierkrachtmeting. Een belangrijk aspect van een spierskeletmodel is de validiteit van het model. Voor validatie moeten modelvoorspellingen getoetst worden aan werkelijk gemeten waarden. Het hoofddoel van dit proefschrift is de validatie op het gebied van kinematica en dynamica van een veelomvattend spierskeletmodel van de menselijke schouder, het Delft Shoulder and Elbow Model. Recentelijk is een implanteerbare, geïnstrumenteerde schouderprothese ontwikkeld die de contactkracht in het glenohumerale gewricht in-vivo kan meten. Hoewel ook hiermee directe spierkrachtmeting niet mogelijk is, kan de contactkracht wel gebruikt worden voor validatie op het niveau van gesomde spierkrachten. In het eerste deel van dit proefschrift zijn de contactkrachten, zoals gemeten door het geïnstrumenteerde implantaat, gebruikt als ‘gouden standaard’ om het model kwantitatief te valideren. Geconcludeerd kan worden dat de nauwkeurigheid van het model in haar voorspelling van glenohumerale contactkracht matig is. Het tweede deel van het proefschrift onderzoekt de verschillende redenen die ten grondslag liggen aan het verschil tussen gemeten en voorspelde krachten en richt zich op het verkleinen van de verschillen door aanpassingen aan het model. Een selectie van mogelijke oorzaken (bv. spiercocontractie, wrijving in het gewricht) worden geïdentificeerd en onderzocht. Een belangrijke conclusie van dit deel is dat cocontractie door antagonistische spieren in acht dient te worden genomen bij het modelleren. Ook wordt geconcludeerd dat wrijvingsmomenten in de schouderprothese aanzienlijk zijn en er daarom rekening mee dient te worden gehouden bij biomechanische analyse van kunstmatige schouders.
A. Asadi Nikooyan
20-6-2011 12:30:00
From surgical waste to medical products
B. van Straten
7-6-2022 09:55:00
Generating Secure and Gentle Grip on Soft Substrates
S.P. van Assenbergh
17-1-2022 10:55:00
High-resolution focal-plane wavefront sensing for time-varying aberrations
P.J. Piscaer
9-6-2021 07:25:00
Improving the Techno-Economic Performance of Wave Energy Converters. From the Perspective of Systematic sizing
J. Tan
5-12-2022 10:55:00
Inelastic Deformation in Metals and Contacts
J.S. van Dokkum
26-10-2023 12:25:00
Integrated transport and energy systems based on hydrogen and fuel cell electric vehicles
V.D.W.M. Oldenbroek
4-10-2021 09:55:00
Measuring adhesion and friction in MEMS
J. Kokorian
22-12-2020 08:25:00
MEMS monocrystalline-silicon based thermal devices for chemical and microfluidic applications
MEMS monocrystalline-silicon based thermal devices for chemical and microfluidic applications.
This thesis explores the employment of monocrystalline silicon in microsystems as an active material for different thermal functions, such as heat generation and heat transfer by conduction.
In addition to theoretical and experimental study on temperature dependence of resistivity of differently doped silicon layers, three devices are presented in this thesis:
- mono-Si hotplate micro-heater for high temperatures up,
- micro-evaporator that can be used for cooling of electronics or chemical microsystems
- miniaturized resistojet thruster for fine attitude control of small satellites
M. Mihailovic
29-6-2011 12:30:00
Molecular simulation of nanoporous materials. Application to metal-organic frameworks, zeolites, and cyclodestrins
M. Erdős
13-6-2022 09:55:00
Molecular simulation of Phase and Reaction Equilibria. Software and Algorithm Development
R. Hens
20-10-2020 12:25:00
Multifunctional implants. Prevention is better than cure
I.A.J. van Hengel
23-9-2022 09:55:00
NH3 condensation within plate heat exchangers: Flow patterns, heat transfer & frictional pressure drop
X. Tao
12-1-2021 08:25:00
Numerical Investigation of Turbidity Flows Generated by Polymetallic Nodules Mining
M.F.A.I. Elerian
5-9-2023 07:25:00
On-Road assessment of driver workload and awareness in automated vehicles
J.C.J. Stapel
25-2-2021 13:25:00
Optimization-based Approaches for Fault Detection and Estimation: with applications to health-monitoring of energy systems
J. Dong
6-9-2023 07:25:00
Particle Manipulation-on-Chip. Using programmable hydrodynamic forcing in a closed loop
A. Kislaya
22-4-2022 09:55:00
Poisson meets Escher. Exploring the Poisson effect in bone implant design
H.M.A. Kolken
24-2-2022 10:55:00
Reflex mechanisms in CRPS-related dystonia
Reflex mechanisms in CRPS-related dystonia
Complex Regional Pain Syndrome (CRPS) is a common, disabling and poorly understood disorder that is characterized by chronic pain, autonomic and trophic changes in an arm or leg. Although CRPS commonly develops after trauma (fracture, strain or surgery), the severity of the symptoms cannot be explained by the inciting trauma. Approximately 25% of the patients with CRPS develop fixed dystonia, a movement disorder associated with sustained muscle contractions that result in abnormal postures.
TREND (Trauma RElated Neuronal Dysfunction), a consortium of Dutch medical and technical universities and industrial companies, integrates research on CRPS and aims to develop concepts on disease mechanisms that occur in response to tissue injury and methods for its assessment and treatment.
The thesis describes research within TREND that focuses on the pathophysiology of CRPS-related dystonia from an engineering point of view. Although the mechanisms behind fixed dystonia are still elusive, the evidence implicating involvement of aberrant regulation of muscle force is compelling. A neuromuscular model with aberrant regulation of muscle force successfully mimicked dystonia while experiments demonstrated involvement of muscle force regulation in fixed dystonia.
The research presented in the thesis elucidates the mechanisms behind fixed dystonia and may in time develop into a diagnostic tool that objectively quantifies fixed dystonia, expediting diagnosis and monitoring its progression.
W. Mugge
22-6-2011 12:30:00
Safety assessment of automated vehicles using real-world driving scenarios
E. de Gelder
9-9-2022 09:55:00
Scalable magnetic field mapping and localization using Gaussian process regression
F.M. Viset
25-11-2024 10:55:00
Solidification modelling in metallic melt-pools with application to welding and additive manufacturing
X. Liang
4-6-2024 09:55:00
Spheres vs. rods in fluidized beds. Numerical and experimental investigations
I. Mema
3-12-2020 08:25:00
STEERING IN INTERVENTIONAL CARDIOLOGY. Design and Evaluation of Steerable Catheters and their Applications
A. Ali
31-5-2021 12:25:00
The Bits of Nature: Bioinspired bitmap composites
M. Cruz Saldivar
19-6-2023 14:55:00
The hydrodynamics of rowing propulsion
E.J. Grift
24-9-2020 12:25:00
Towards Closed-loop Maintenance Logistics for Offshore Wind Farms: Approaches for Strategic and Tactical Decision-making
M. Li
5-7-2023 09:55:00
Towards upscaling the Battolyser - an integrated Ni-Fe alkaline battery and electrolyser: A combined modeling and experimental study
A. Mangel Raventos
31-3-2023 07:25:00
Tracking Schooling Fish in Tree Dimensions; Experiments at the Rotterdam Zoo
K. Muller
5-9-2023 09:55:00
Underactuated Hands: Fundamentals, Performance Analysis and Design
There is an emerging need to apply adaptive robotic hands to substitute humans in dangerous, laborious, or monotonous work. The state-of-the-art robotic hands cannot fulfill this need, because they are expensive, hard to control and they consist of many vulnerable motors and sensors. It is aimed to develop simple, adaptive hands that are capable of grasping and holding a large variety of objects. To achieve these properties, the concept of underactuation (i.e. having fewer actuators than independently moving fingers) is applied. First new metrics are defined which quantify the range of object sizes that underactuated hands can grasp and hold. Furthermore, a new method is developed to dimension the main design parameters of underactuated hands, such that the fingers can envelope and stably grasp the required range of objects. The new performance metrics and design method are applied to the design and evaluation of a new robotic hand that consists of a minimum number of motors (i.e. one) and sensors (i.e. zero). The innovation of this hand is that it mechanically decides whether to hold an object in a precision grasp or a power grasp configuration. No sensors, auxiliary actuation mechanisms, motors or control are needed to convert between these two distinct grasp configurations. It is concluded that the principle of underactuation and the proposed design method are effective to achieve self-adaptive, robust and cheap hands that are capable to grasp and hold a large range of different objects.
G.A. Kragten
28-6-2011 12:30:00
Understanding and Modelling of Motion Sickness and Its Individual Differences for the Comfortable Control of Automated Vehicles
T. Irmak
16-5-2022 07:25:00
Volume-based electrodes for enhancing limiting currents in electrochemical conversion reactions
N.E.G. Ligthart
10-2-2025 10:55:00
Wear Behaviour of A convex Pattern Surface for Bulk Handling Equipment
Y. Yan
14-12-2022 15:55:00
Wet Biomass Treatment: Energy and Sanitation System Concepts
M.D.R. Recalde Moreno
5-3-2024 08:25:00
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