In multi electron beam systems, “Neighbours Matter”

In the Multi beam source (MBS) of our Multi Beam Scanning Electron Microscope (MBSEM), an aperture lens array (ALA) splits the emission cone of the Schottky field emitter into multiple beamlets. When the apertures in the ALA are close to each other, the ALA can introduce aberrations to these beamlets through the electrostatic interaction of...

Design validation of the MATE tendon-based passive device for post-stroke rehabilitation

Rehabilitation robots have been shown to be effective in post-stroke gait rehabilitation. However, these devices are usually expensive and suffer from high inertia which decreases transparency. The Minimally Actuated Tendon-based exercise Environment (MATE) is a tendon-based rehabilitation device, designed to be cost-effective and minimize...

An office that feels like home: The influence of the home work environment on perceived productivity

Homeworking can have benefits both for employees and employers, such as a productivity increase and a better work-life balance. Still, homeworking arrangements were less implemented than expected throughout the years. Now, due to Covid-19, every office worker is highly recommended to work from home as much as possible. Therefore, everybody works...

A building like a forest: Future proof adaptable timber housing by growing and shrinking

Due to the great housing shortage, many people continue to live in houses that no longer suit them. Looking at future housing demand by taking adaptability as a starting point to create a suitable home for the future generation. Growing and shrinking houses in order to adapt the house to the people instead of the other way around. To do this, a...

The infuence of the physical home work environment on perceived productvity during the COVID-19 pandemic

Due to the COVID-19 crisis, Dutch employees were told to work from home as much as possible. Homeworking can have benefits both for employees and employers, as some experience a productivity increase and a better work-life balance. However, it is also harder for employers to measure and monitor employees’ performance and for the employee it can...

The Power of Pneumatics: Design of a Novel Elbow Prosthesis

Introduction: Almost 57 percent of above elbow amputees stop using their prosthesis. One of the main factors of non-wear is the high weight. Pneumatic actuation can be more lightweight than electronic actuation, and might therefore help with reducing the mass of a prosthesis and...

Reducing distance: Reduce distance to create a sense of belonging and get familiar with one another

The distance between the elderly and others is very large. This means that you have less to do with each other, know less about each other and this means that the distance is getting bigger all the time. The institutional buildings have a kind of imaginary “boundery” around their building, difficult to get in and to get in touch with the elderly...

Proposed solutions for quantization induced performance deterioration in reset controllers

The most widely applied feedback controller is PID. This controller gains its popularity because of the ease of design through loop shaping, since PID can be analyzed in the frequency domain. However, PID is limited by linearity. Reset control is a nonlinear addition to PID control. Through linearization techniques it can be designed by...

Pulse length, energy spread, and temporal evolution of electron pulses generated with an ultrafast beam blanker

Crucial for the field of ultrafast electron microscopy is the creation of sub-picosecond, high brightness electron pulses. The use of a blanker to chop the beam that originates from a high brightness Schottky source may provide an attractive alternative to direct pulsed laser illumination of the source. We have recently presented the concept...

A Rigid Multibody Model to Study the Translational Motion of Guidewires Based on Their Mechanical Properties

During percutaneous coronary interventions (PCI), a guidewire is used as an initial way of accessing a specific vasculature. There are varieties of guidewires on the market and choosing an appropriate one for each case is critical for a safe and successful intervention. The main objective of this study is to predict the behavior of the guidewire...

Design for Political Involvement - Reframing the party-citizen relation

This thesis describes the process and results of the graduation project “Design for Political Involvement” for the Masters’ course Design for Interaction. The project was executed for the political party D66. The goal of the project was to design a product that will increase the involvement of citizens in the political party D66 by the year 2018...

Tunnel onder het Prinsel Margrietkanaal in rijksweg 43 tussen Sneek en Joure

Ontwerp en aanleg van een tunnel (aquaduct) onder het Prinses Margrietkanaal.