Responsible mission governance: An integrative framework and research agenda

Governance lies at the heart of instigating, steering, and creating the conditions for mission-oriented transitions that potentially help resolve some of our grand societal challenges. In doing so, policymakers will need to navigate both epistemic and normative considerations to develop, implement, and evaluate missions responsibly. A number...

Fallowscapes: A transition-driven tool to market ecological urbanism

Urban areas generate high demand for urban areas to accommodate a broader range of functions associated with growth, given the rising rate of urbanization with more than two-thirds of the human population in 2050 projected to be city-dwellers. As a result, urban areas have been undergoing vigorous spatial, social, and ecological transitions....

Design Actions for Shifting Conditions

Beyond the urgency of rethinking XX-century urbanization characterized by endless structural expansion strategy, we need to engage urban systems by means of emerging concepts of adaptability and systemic transitions due to climate change effects. Emission reduction and spatial compactness, reuse and recycle, flexibility and complex balances have...

Power struggles in policy feedback processes: incremental steps towards a circular economy within Dutch wastewater policy

Environmental problems are usually not tackled with path-departing policies but rather with incrementally adjusted or unchanged policies. One way to address incremental change is the policy feedback approach, which initially focussed on self-reinforcing feedback and path-dependency. Today, self-undermining feedback is also increasingly being...

Domino effects in chemical factories and clusters, risk in the eye of the beholder: An historical perspective and discussion

Major accidents in Western countries, receiving a lot of media attention in the 1970s, are starting point for research into internal and external domino effects in the chemical and petrochemical sectors and clusters. Initially, these reports are published by government institutions and government-related research centers. With the upcoming...

Using agent-based models to generate transformation knowledge for the German energiewende-potentials and challenges derived from four case studies

The German Energiewende is a deliberate transformation of an established industrial economy towards a nearly CO2-free energy system accompanied by a phase out of nuclear energy. Its governance requires knowledge on how to steer the transition from the existing status quo to the target situation (transformation knowledge). The energy system is,...

Comparison of frequency-domain and continuous-wave near-infrared spectroscopy devices during the immediate transition

Background: Non-invasive monitoring of cerebral tissue oxygen saturation (rcSO₂) during transition is of growing interest. Different near-infrared spectroscopy (NIRS) techniques have been developed to measure rcSO₂. We compared rcSO₂ values during the immediate transition in preterm neonates measured with...

Patterns of Circular Transition: What Is the Circular Economy Maturity of Belgian Ports?

Large seaport hubs in Northwestern Europe are aiming to develop as circular hotspots and are striving to become first movers in the circular economy (CE) transition. In order to facilitate their transition, it is therefore relevant to unravel potential patterns of the circular transition that ports are currently undertaking. In this paper, we...

Experimenting with a circular business model: Lessons from eight cases

Experimentation is an important capability in the transition to a sustainable business. The aim of business experimentation is to learn and improve business model innovation activities with limited risks and resources through continuous and collective learning with stakeholders. Through action research we worked with eight case companies on a...

Drag reduction by laminar flow control

The Energy System Transition in Aviation research project of the Aeronautics Research Center Niedersachsen (NFL) searches for potentially game-changing technologies to reduce the carbon footprint of aviation by promoting and enabling new propulsion and drag reduction technologies. The greatest potential for aerodynamic drag reduction is seen...

Mechanisms of boundary layer transition induced by isolated roughnes

Boundary layer transition is a relevant phenomenon in many aerodynamic and aero-thermodynamic problems and has been extensively investigated from the past century till recent times. Among the factors affecting the transition process, surface roughness plays a key role. When a roughness element with sufficiently large height (<i>h</i>) compared...

The role of product designers in the transition towards the circular economy: A reality check

This paper examines the role of product designers in the transition towards the circular economy. Both scientific and grey literature show remarkable optimism when it comes to role strategic and coordinating role designers could play in this transition process. However, there has been little examination of the actual role and influence designers...

Geometry effect of isolated roughness on boundary layer transition investigated by tomographic PIV

Boundary layer transition over isolated roughness elements is investigated in the incompressible flow regime using tomographic PIV. Four different geometries (cylinder, square, hemisphere and micro-ramp) are considered maintaining constant height and span of the element. The main target is to compare the different flow topologies and study the...