Integrated production of tree biomass and piglets - Effect of paddock design on sow excretory behaviour

In systems with an integrated production of trees and piglets it is important that the lactating sows are motivated to urinate and defecate adjacent to the trees to reduce nutrient losses. Adding poplar trees in one end of individual pasture-based paddocks did not motivate the sows to choose the area with trees for elimination independent of paddock design. The location of feed and hut influenced the sows’ excretory behaviour and the effect differed between the different combination of feed and hut location. Future work should focus further on overall paddock design to optimize nutrient uptake and to ensure an outdoor system that from both a welfare- and environmentally point of view is sustainable

Developing a Pilot Case and Modelling the Development of a Large European CO₂ Transport Infrastructure -The GATEWAY H2020 Project

The H2020 GATEWAY project aims to develop a comprehensive model Pilot Case which, intentionally, will pave the ground for CCS deployment in Europe. It will result from the assessment of, technical, commercial, judicial and societal issues related to a future CO2 transport infrastructure. The Pilot Case derived on this basis, will emphasize a gateway for CO2 transport in the North Sea Basin. Four potential pilot cases have been evaluated through a combination of techno-economic modelling of the individual cases and evaluation against more qualitative criteria. The chosen Pilot Case, Rotterdam Nucleus, will be refined and developed during the remaining period of the GATEWAY project. To maximise impact, the GATEWAY project adapts its work to lay the foundation for a future application to a European ‘Project of Common Interest’ (PCI). Continuous dialogue with the most relevant stakeholders is an important part of GATEWAY, as a Coordination and Support Action (CSA) H2020 project

Circular economy – reducing symptoms or radical change?

Author's accepted version (postprint).This is an Accepted Manuscript of an article published by Springer Nature Switzerland AG in Philosophy of Management on 05 April 2019.Available online: https://doi.org/10.1007/s40926-019-00112-1In this article, we address why our management of the economy, community and business has led to global warming and we discuss the importance of worldviews, ontology, epistemology and axiology in the search for alternative paths of development. We do this by focusing on the concept of Circular Economy. Circular Economy is often presented as a solution to the problems of a globalized economy in the form of over-exploitation of resources, climate change and pollution of the environment. Within the mainstream economics paradigm, the aim is how to increase the effectiveness of resource extraction and utilization in order to maintain growth. We contrast this with the paradigm of Ecological Economics where the goal of the economy is to achieve and secure a higher quality of life. Circular Economy often side steps the deep ontological and epistemological questions we need to answer if we are to address the complex and interrelated environmental, economic and social problems we face today. This can be a limiting factor in the search for creative and long-term solutions. However, within the Circular Economy discourse, we find strands that critically engage with the foundations of mainstream Economics and so, innovative solutions for the society of the future are a possibility. We argue that to bring about a lasting solution to the interconnected social, economic and environmental problems, Circular Economy must engage with the ontological, epistemological and axiological foundations of mainstream economics. To further this argument, we apply Imre Lakatos’ ‘research program’ model to philosophy of science as our framework of analysis and draw lessons for business and communities.acceptedVersio

Intermediate Wakimoto modules for Affine sl(n+1)

We construct certain boson type realizations of affine sl(n+1) that depend on a parameter r. When r=0 we get a Fock space realization of Imaginary Verma modules appearing in the work of the first author and when r=n they are the Wakimoto modules described in the work of Feigin and Frenkel

Repeated games for eikonal equations, integral curvature flows and non-linear parabolic integro-differential equations

The main purpose of this paper is to approximate several non-local evolution equations by zero-sum repeated games in the spirit of the previous works of Kohn and the second author (2006 and 2009): general fully non-linear parabolic integro-differential equations on the one hand, and the integral curvature flow of an interface (Imbert, 2008) on the other hand. In order to do so, we start by constructing such a game for eikonal equations whose speed has a non-constant sign. This provides a (discrete) deterministic control interpretation of these evolution equations. In all our games, two players choose positions successively, and their final payoff is determined by their positions and additional parameters of choice. Because of the non-locality of the problems approximated, by contrast with local problems, their choices have to "collect" information far from their current position. For integral curvature flows, players choose hypersurfaces in the whole space and positions on these hypersurfaces. For parabolic integro-differential equations, players choose smooth functions on the whole space

Patterns and localized structures in bistable semiconductor resonators

We report experiments on spatial switching dynamics and steady state structures of passive nonlinear semiconductor resonators of large Fresnel number. Extended patterns and switching front dynamics are observed and investigated. Evidence of localization of structures is given.Comment: 5 pages with 9 figure