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The progress in efficiency of organic photovoltaic devices is largely driven by the development of new donor–acceptor (D–A) copolymers. The number of possible D–A combinations escalates rapidly with the ever-increasing number of donor and acceptor units, and the design process often involves a trial-and-error approach. We here present a computationally efficient methodology for the prediction of o
A major drawback of the defibration or refining process in manufacturing pulp is that of its large energy requirements. If the mechanics of the process were better understood, large amounts of energy could probably be saved. The initial defibration seems to be crucial for both the quality of the pulp and the total consumption of energy. Numerical simulations by means of the finite element method r
In accordance with India's sustainable energy targets of achieving 175 GW of renewable energy (RE) installed capacity by 2022 and 450 GW by 2030, the role of private sector actors has become increasingly important. As presently, 96 percent of the total installed RE utilities in India are privately owned; this makes sustainability driven entrepreneurship the core of India's energy sector transition
Demand-responsive control of electrically heated hot water storage tanks (HWSTs) is one solution, already present in the building stock, to stabilise volatile energy networks and markets. This has been put into sharp focus with the current energy crisis in Europe due to reduced access to natural gas. Furthermore, increasing proportions of intermittent renewable energy will likely add to this volat
The construction industry is an important societal sector and a major consumer of energy. Improved energy efficiency is important for this sector, but energy efficiency at construction sites has so far been under-researched. The aim of this article is to analyse the drivers of and barriers to improved energy efficiency at construction sites, as perceived by professional actors. The peer-reviewed r
In this present work, different supports (CeO2/ZrO2) and different Ni contents based catalysts were prepared by incipient wetness impregnation method and tested in the methane steam reforming (MSR) reaction. The prepared catalysts were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). The XRD analysis confirmed the prepared Ni/CeO2 samples have a pure crystal structu
Many cities are striving to develop urban transformation strategies, in order to transit from traditional city to a sustainable city. Improving the energy efficiency of the existing buildings is the key to address climate change mitigation and adaptation. This paper considers different climate scenarios using different series of future climate in four different European cities, namely, Kiruna, Sto
Decision analysis is often used to help decision makers choose among alternatives, based on the expected utility associated to each alternative as function of its consequences and potential impacts. Environmental impacts are not always among the prioritized concerns of traditional decision making. This has fostered the development of several environmental problems and is nowadays a reason of conce
Large datasets are now ubiquitous as technology enables higher-throughput experiments, but rarely can a research field truly benefit from the research data generated due to inconsistent formatting, undocumented storage or improper dissemination. Here we extract all the meaningful device data from peer-reviewed papers on metal-halide perovskite solar cells published so far and make them available i
Schedule UTVC26, fall 2017, updated 2017-10-16 Date and Place Title Time Teacher Reading 1/11 Världen Introduction 09-10 EG 1/11 Världen Philosophy of science and the qualitative-quantitative divide – real or fiction? 10-12 EG Bryman ch 1-2, de Vaus ch 1 3/11 Världen Design in qualitative research 13-15 JG Bryman ch 1, 3, 7, 17, de Vaus chapter 7, Lijphart 6/11 Världen Design in quantitative resea
https://www.keg.lu.se/sites/keg.lu.se/files/utvc26_ht_2017_schedule_2017-10-16.pdf - 2026-07-20
Den här uppsatsen syftar till att föreslå en alternativ diskurs om normbrytande funktionsvariationer. I analys av intervjufilmer med familjer där det finns en familjemedlem med en normbrytande funktionsvariation undersöks hur en nuvarande dominerande diskurs verkar förtryckande. Vidare föreslås en språklig vändning som riktar blicken mot uteslutande strukturer snarare än att fokusera på individen
Ukraine has significant potential for bioenergy. Biomass can supply 1 EJ/year or 18% in the country’s energy balance. The major part of this is formed by agricultural residues and energy crops. Annually nearly 175 PJ can be derived from straw, which is currently not used elsewhere. At present the biofuels sector in Ukraine is not established although a number of initiatives have emerged. Biomass s
Maritime transportation is a significant contributor to SOx, NOx and particle matter emissions, even though it has a quite low CO2 impact. New regulations are being enforced in special areas that limit the amount of emissions from the ships. This fact, together with the high fuel prices, is driving the marine industry towards the improvement of the energy efficiency of current ship engines and the
Popular Abstract in Swedish Växter är en av den största grupperna av organismer på jorden. Den här gruppen av organismer kan syntesisera kolhydrater med solenergi. I växter används en stor del av kolhydraterna till att bilda förnyelsebara polysackarider som sedan används för att bygga upp vedstrukturer. Den mest kända växtpolysackariden är cellulosa som består av långa kedjor av glukos. Den näst mHemicellulose is the second most abundant group of renewable polysaccharides. Mannans can be found as the major hemicellulose in softwood and as storage polysaccharides in a range of plants. In this work, structural and functional characterisations of family 5 and 26 endo-1,4-b-mannanases (b-mannanases) have been performed. These families belong to the large and diverse glycoside hydrolase clan A,
Physical activity and healthcare utilization has negative association. However, there appears to be limited knowledge of how this association is affected by self-rated health (SRH) and socio-economic status (SES). Therefore, the aim of this study was to examine the association between leisure-time physical activity (LTPA) and healthcare utilization, and investigate how SRH, gender, age and SES aff
Power failures in combination with harsh weather conditions during recent years have led to an increased focus on a safe energy supply to our society. Many vital functions are dependent on electricity; e.g., lighting, telephony, medical equipment, lifts, alarm systems, payment, pumps for town's water and, perhaps the most critical of all. heating systems. In Sweden. district heating (DH) is the mo
