Abstract
Bidirectional electric vehicle charging stations (EVSE) offer new business models like Demand Response to users or can provide ancillary services to support the electrical grid (V2G and G2V). This type of charging station represents a novelty in the electrical grid, as it is considered as load and as power generation unit at the same time. In this study the supraharmonic emissions of a bidirectional EVSE are analyzed at a reconstructed electrical distribution grid. The emissions are determined according to existing standards (IEC61000-4-7 and IEC61000-4-30) for different grid conditions and operating points. Influence factors for supraharmonic emissions are identified as well as narrowband and wideband emissions of the EVSE. Time-domain analysis of the high-frequency signals which can lead to equipment malfunction concludes this work and emphasizes the need of regulations in this frequency range.

Abstract
This article investigates the problem of detecting and estimating actuator fault in direct current microgrids (DC MGs) with linear and nonlinear constant power loads (CPLs). The actuator fault is modeled by using an additive term in the state-space and highly influences the system response if it is not compensated. An advanced dual-extended Kalman filter (dualEKF) is proposed to estimate the system states and the accruing actuator fault. Though the presented approach offers a systematic procedure to divide the augmented state vector into two parts and these parts can be estimated in parallel. Thereby, the online computational burden is reduced as it can be implemented by two processes in parallel. The proposed approach does not require restrictive assumptions on the system matrices and is robust against stochastic Gaussian noises. The proposed approach is applied on a practical faulty DC MG benchmark connected to a CPL; and, the results are compared with other state-of-the-art methods from the computational burden and estimation accuracy points of view.

Abstract
This paper introduces a low-profile 5G phased array with a broad operation band for smartphone applications. The design procedure is simple and easy to accomplish. It is composed of eight endfire dipoles with a 1x8 linear array arrangement at the top side of the smartphone. The design is arranged on an RT5880 material with 0.25 mm thickness. The resonators of the array are placed on the same copper side of the ground plane. The employed elements have low profiles with discrete-feeding ports. The proposed array offers a broad impedance bandwidth from 28 to 38 GHz which could cover 5G candidate frequencies. Moreover, the coupling of the single radiators is less than -20 dB at the centre frequency. Well-defined end-fire radiation, good efficiency, highly miniaturized profile, wide beam-steering, sufficient gain levels, and wide operation band are the promising characteristics of the introduced array.

Abstract
The lack of access to water and sanitation services (WSS) of a considerable share of the world population has been challenging the international community for decades. The proposal of the Millennium Development Goals and, later on, the Sustainable Development Goals (SDGs) by the United Nations (UN) intended to act as a blueprint to achieve a more equitable future for all and, in the case of WSS, "Ensure the availability and sustainable management of water and sanitation for all" (SDG 6). However, the current global pandemic further emphasised the importance of WSS, given the increasing asymmetries faced by billions worldwide, and the gaps between high-income and low-and middle-income nations. For this reason, understanding whether low-and middle-income countries have been approximating towards or deviating from the SDG 6 is crucial to derive and communicate key information for the sake of improved public governance and political decision-making. In this paper, we extend a state-of-the-art methodology based on data envelopment analysis for assessing the convergence of the low-and middle-income UN Member States regarding the SDG 6 between 2016 and 2017. We find that, on average, not only did the Member States converge by decreasing the performance spread and the gap between the best and worst practice frontiers, but also the Level of water stress: freshwater withdrawal as a proportion of available freshwater resources was the indicator in which the majority exhibited the worst performances. In the end, we derive possible policy implications, which, as our results show, are aligned with the recent UN reports on the subject.

Abstract
This paper presents practice-based research on ecoacoustics, ocean soundscapes and anthropogenic noise. It explores creative strategies to the introduction, experience and perception of ocean soundscapes in artistic creation. Ocean soundscapes are a crucial tool to foster an emotional affinity between people and natural environments.This research questions how to convey the experience of oceanic soundscapes and their human disruption by detailing an artistic artefact - DIS_turbation - and its integrative approach. It explores the vibrational and particlemotion component of ocean sound and defines place attachment, creative development, nature-connectedness and ecology of Effect as methods. The contributions include addressing biological processes to foster underwater noise dialogue, reveal qualities of vibroacoustic ecology, develop artistic artefacts to translate particle-motion in a more grasping way, and foster inclusion with nature.

Abstract
Societies face complex challenges, which require a harmonious transition to future patterns. A strategic response to reconfigure society should assure the provision of critical resources and the resilience of the socio-technical systems in the long-term. The implementation of a new dominant technology and paradigm in the transport context is a complex process: it is multidimensional, requires seamless integration of various features and entails trade-offs in the decision-making process. The authors use general morphological analysis (GMA) as a theoretical framework that supports decision making in the transition management of transport to a new powertrain technology. This example is just an illustration of a broader representation of all the possible solutions of a large-scale problem as it is the case of any multi-level process of governance, leading to the pursuit of new paradigms. The originality of the paper lies on using a GMA that addresses sustainable challenges in a transport system from a multi-level perspective.