The multiferroic RFe3(BO3)4 family is characterized by diverse magnetic, magnetoelectric, and magnetoelastic properties, the fundamental aspects of which are essential for modern electronics. present research, using single-crystal X-ray diffraction (XRD) Mössbauer spectroscopy (MS) in temperature range 25–500 K, aimed to analyze influence local atomic coordination on magnetoelectric properties ...

The European Union (EU) Regulation on fluorinated greenhouse gases (F-gases) has encouraged to reduce gradually the number of hydrofluorocarbons (HFC) that can be placed market (POM) 21% baseline level in 2030. However, this day, EU refrigeration, air conditioning and heat pump (RACHP) is still dominated by these substances. This study describes a methodology estimate refrigerant demand conditi...

Numerical simulation is extensively used in heat exchanger design and performance evaluation. While evaluating potential working fluids, pure fluids and fluid mixtures with different component combinations and fractions are compared based on simulation results. Two of the challenges while conducting such studies are the uncertainties of refrigerant properties and the applicability of empirical ...

We study the “house allocation” problem in which n agents are assigned n objects, one for each agent, when the agents have interdependent values. We show that there exists no mechanism that is Pareto efficient and ex post incentive compatible, and the only mechanism that is group ex post incentive compatible is constant across states. By contrast, we demonstrate that a Pareto efficient and Baye...

Multistability is a ubiquitous feature in systems of geophysical relevance and provides key challenges for our ability to predict a system’s response to perturbations. Near critical transitions small causes can lead to large effects and—for all practical purposes—irreversible changes in the properties of the system. As is well known, the Earth climate is multistable: present astronomical and as...

This paper discusses exchange-based spot market trading of electricity in Western Europe, both from a theoretical and an empirical perspective. The theoretical section contains a selection of references to recent and seminal research in this field of research, and touches upon issues such as the dealing with grid constraints, modelling of bidding systems, bidding strategies, types of auctions, ...