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A dynamic performance of district heating systems was analysed with an emphasis on temperature profile distortion throughout a heating system network. Therefore, a modelling approach (the so-called node method) developed at the Technical University of Denmark was applied. For comparison purposes, commercial TERMIS software was also used in this work. Typical supply conditions were investigated in

With Habermas' theory of communicative action as the starting point, a theoretical model is devised to investigate the act of creative writing as formulated in interviews made with students and teachers on a university study program me in creative writing. This article explores writers' work procedures in a communicative network of institutional and everyday practices, in the light of established

Background and purpose: The Radiation Oncology Safety Information System (ROSIS) was established in 2001. The aim of ROSIS is to collate and share information on incidents and near-incidents in radiotherapy, and to learn from these incidents in the context of departmental infrastructure and procedures. Materials and methods: A voluntary web-based cross-organisational and international reporting an

The quality of coatings, produced by thermal spraying processes, considerably decreases with the occurrence of higher residual stresses, which are especially pronounced for complex workpiece geometries. To understand the occurring effects and to aid in the planning of coating processes, simulations of the highly transient energy flux of the HVOF spray gun into the substrate are of great value. In

The blade tip region encounters high thermal loads because of the hot gas leakage flows, and it must therefore be cooled to ensure a long durability and safe operation. A common way to cool a blade tip is to design serpentine passages with 180-deg turn under the blade tip-cap inside the turbine blade. Improved internal convective cooling is therefore required to increase the blade tip lifetime. Di

A gas bubble under the influence of an ultrasonic field so strong to destroy any material due to high pressures and temperatures reached during the collapse is the topic of the present paper. In the current work, simulations have been performed to describe the radial dynamics of a gas (argon) bubble being strongly forced to periodic oscillation in a highly viscous liquid like aqueous sulfuric acid

This paper examines mentorship as a mechanism for individuals to acquire and develop creativity. More specifically, we study the effect of mentor creativity on protégé creativity and how this effect is moderated by the mentoring styles of autonomy and exploration. Our empirical analysis focuses on formal PhD supervision and training, drawing on survey and bibliometric data for 143 life-science pro

Based on extensive ethnographic fieldwork in Uzbekistan, this article looks at the way official state narratives are challenged by silent, unorganized, often unawares, gestures of resistance at the bottom of a society. Footing on a framework suggested by Scott’s definition of infrapolitics (2012), we propose to incorporate informal practices in a definition of informality that is more inclusive, a

In 2020, almost all research labs in industry, academia, and the government were shut down for long periods of time by political leaders to control the spread of the coronavirus. We consider the “micro” and “macro” implications of ongoing coronavirus disruptions in scientific research and the dissemination and commercialization of that research. We have identified three key unanswered research que

A direct correlation between the reaction activity and the surface structure of a catalyst is generally needed to better understand the mechanisms behind the heterogeneous catalysis process. In this work, we employed planar laser-induced fluorescence (PLIF) to spatially resolve the CO2 distribution just above a Pd(100) surface, and simultaneously monitored the optical reflectance of the surface, d

The role of quantum coherence in photochemical functions of molecular systems such as photosynthetic complexes is a broadly debated topic. Coexistence and intermixing of electronic and vibrational coherences has been proposed to be responsible for the observed long-lived coherences and high energy transfer efficiency. However, clear experimental evidence of coherences with different origins operat

The second peace process which started in 2013 ended abruptly in the summer of 2015. The AKP government accuses the PKK for betraying the peace process and re-starting armed attacks against the Turkish security personnel. In contrast the Kurdish political movement argues that it was the AKP who ended the peace process. According to them HDP’s adamant opposition to the presidentialism of Erdogan ha

Parrots are frequently cited for their sophisticated problem-solving abilities, but cases of habitual tool use among psittacines are scarce. We report the first evidence, to our knowledge, of tool use by greater vasa parrots (Coracopsis vasa). Several members of a captive population spontaneously adopted a novel tool-using technique by using pebbles and date pits either (i) to scrape on the inner

Labour market outcomes for immigrants in general is a well researched field, but the mechanisms behind labour market mismatches among immigrants post-migration is still in need of empirical research. Using a unique and newly compiled dataset on Swedish immigrants, also containing pre-migration occupational and educational information data, this study aims makes use of maximum likelihood models to

A pulsed millimeter wave radar operating at a frame rate of 144 Hz is utilized to record 2160 scattering signatures of 12 generic hand gestures. Gesture recognition is achieved by machine learning, utilizing transfer learning on a pretrained convolutional neural network. This yields excellent classification results with a validation accuracy of 99.5%, based on a 60% training versus 40% validation

Abstrakt. Ett etablerat MP2RAGE-protokoll för semikvantitativ strukturell hjärn-MRI överfördes frånen 7T MR-skanner till en annan leverantör med jämförbar hårdvara, men motsatt polaritet. På det härsystemet, kan skanningstiden reduceras från 11 till 8 minuter genom elliptisk k-space-sampling. Tre konfigurationerav radiofrekvens (RF) överföring jämfördes (enkelkanal med kvadraturen slits, två och å