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Modelling of elastic damping in nonlinear time-history analyses of cantilever RC walls

Damping constitutes a major source of uncertainty in dynamic analysis and an open issue to experimental and analytical research. After a thorough review of the current views and approaches existing in literature on damping and its appropriate modelling, this paper focuses on the implications of the available modelling options on analysis. As result of a series of considerations, a damping modelling solution for nonlinear dynamic analyses of cantilever RC walls is suggested within the frame of Direct Displacement-Based Design, supported by comparative analyses on wall structures.

‘Becommoning': a design-framework for the initiation of new commons

This article explores the establishment of new commons initiatives from an integrated design perspective. Such a deeper understanding of the initial phase of becoming a commons -i.e. becommoning- and its design is crucial as members embark on a laborious, time-consuming and uncertain process in which they need to make critical design choices for their future commons. The design perspective is brought forward by the collective creation through which group values are explicated, the communal resource and its governance take shape and conditions are forged for the commons to emerge. So, the study presents the ‘becommoning’ framework as a first exploration for such a designerly approach to identify the steps and activities communities need to make at the very begin to start unfolding their initiative. The framework is applied in a case study, namely, for exploring the design of housing commons and related genres like cohousing, residential communities that are recognized as microlaboratories offering general insights for pursuing alternative societal models.

Managing social impact in design

We need look no further than the use of email communication, mobile phones and cars to understand that technology has wide-ranging social consequences. What is more, designers are plainly not always aware of the social consequences of technology, despite practicing user-centred design. Email, for instance, was developed as an efficient mode of communication between two actors. As we all know, the introduction of email has fundamentally changed traditional business and office practices. These side effects were not identified until long after email was introduced. During recent years, designers have grown increasingly interested in these social aspects. Modern information technology, in particular, creates extensive possibilities to influence social behaviour. Persuasive technology has been developed to increase, e.g., environmental friendliness. Once a designer aims at defined social changes, the consequences of technology for practices become a responsibility, too. The present research is aimed at providing tools and methods to anticipate social consequences at an earlier stage of the design process. These consequences of technologies in social environments will be called social impacts. In order to be a meaningful concept for designers the characteristics of a particular technology that are responsible for social impacts must be identified. Social consequences of technologies have not been observed very thoroughly from a user-centred design point of view. Therefore, this thesis is aimed, not only at gaining knowledge about social impact, but also translating these insights into workable instruments for designers. This leads to the following research questions:1. What relations can be identified between social impacts and characteristics oftechnologies?2. How can a designer anticipate social impact?3. How can social impact be managed in design environments?

Urban tourism studies : a transversal research agenda.

The blockchain and the commons

This paper addresses the design dilemmas that arise when distributed ledger technologies (DLT) are to be applied in the governance of artificial material commons. DLTs, such as blockchain, are often presented as enabling technologies for self-governing communities, provided by their consensus mechanisms, transparent administration, and incentives for collaboration and cooperation. Yet, these affordances may also undermine public values such as privacy and displace human agency in governance procedures. In this paper, the conflicts regarding the governance of communities which collectively manage and produce a commons are discussed through the case of a fictional energy community. Three mechanisms are identified in this process: tracking use of and contributions to the commons; managing resources, and negotiating the underlying rule sets and user rights. Our effort is aimed at contributing to the HCI community by introducing a framework of three mechanisms and six design dilemmas that can aid in balancing conflicting values in the design of local platforms for commons-based resource management.

Design and review of Bachelor level education in prosthetics and orthotics in the Netherlands

Dissertatie met als onderwerp het ontwerp en evaluatie van de Hogere Beroepsopleidding Orthopedische Technologie in Nederland. In deze dissertatie wordt naast het ontwerp van de opleiding ingegaan op een vergelijking die is gemaakt met andere opleidingen op het gebied van hoger orthopedisch technologisch onderwijs in de wereld.