3D video quality of experience - influence of scale and crosstalk

This paper gives an overview of three recent studies by the authors on the topic of 3D video Quality of Experience (QoE). Two of studies [1,2] investigated different psychological dimension that may be needed for describing 3D video QoE and the third the visibility and annoyance of crosstalk[3]. The results shows that the video quality scale could be sufficient for evaluating S3D video experience for coding and spatial resolution reduction distortions. It was also confirmed that with a more complex mixture of degradations more than one scale should be used to capture the QoE in these cases. The study found a linear relationship between the perceived crosstalk and the amount of crosstalk

Challenges Building a Data Value Chain to Enable Data-Driven Decisions: A Predictive Maintenance Case in 5G-Enabled Manufacturing

Improvements in data storage and processing technologies have led many managers to change how they make decisions, relying less on intuition and more on data. This trend is especially notable for the manufacturing industry where Big Data applications, i.e. data analytics, are mentioned as an important enabler of value creation with the event of the fourth industrial revolution. Designing and building the entire data value chain that enables Big Data applications in manufacturing requires new knowledge about digital technologies combined with already established knowledge about the specific manufacturing processes. This paper focuses on the convergence of these different knowledge spaces applied to a specific case of implementing a Big Data application for predictive maintenance. Every step of building the data value chain from data acquisition to system feedback is presented and discussed in terms of the major challenges that were observed during the project. Results show that, just as the literature suggests, the knowledge gaps between different domains is a key component to manage for succeeding when building Big Data applications in the context of future manufacturing and maintenance

Bevarandeprogram för odlingslandskapet i Hallands län

Länsstyrelsen har sammanstället ett bevarandeprogram för natur- och kulturmiljövårdens bevarandeintressen i odlingslandskapet. Programmet är en sammanställning av befintligt inventeringsunderlag, kompletterat med riktlinjer för odlingslandskapet bevarande. Syftet med programmet är bl.a. att utgöra underlag för följande åtgärder:- Samordning och styrning av samhällets olika former av ekonomisk ersättning till odlingslandskapet- Säkerställande med stöd av naturvårdslagen av de värdefullaste delarna av odlingslandskapet- Fysisk planering på olika nivåer- Information till markägare och allmänhet om odlingslandskapets bevarandevärdenI programmet tecknas odlingslandskapets karaktär i länet samt de styrmedel samhället förfogar över för att uppfylla målen med bevarandet av odlingslandskapet. De odlingslandskap som bedömts ha de högsta bevarandevärdena redovisas separat. 369 områden har kortfattat beskrivits och avgränsats på en översiktlig länskarta. För att särskilja graden av bevarandevärde har områdena delats upp i klasser. Naturvårdens intresseområden har fördelats på tre klasser, kulturmiljövårdens på två klasser. Programmet avslutas med kommunvisa förteckningar över områdena samt sammanställningar där områdena fördelats på kommuner, värdeklasser och markslag.Bevarandeprogrammet ligger till grund för ett kortsiktigt åtgärdsprogram, som preciserar vilka åtgärder som bör initieras och genomföras under de närmaste tre åren.Regionala inventeringsrapporter import från MDP 2015-05</p

Real life testing of a hybrid PEM fuel cell bus

Fuel cells produce low quantities of local emissions, if any, and are therefore one of the most promising alternatives to internal combustion engines as the main power source in future vehicles. It is likely that urban buses will be among the first commercial applications for fuel cells in vehicles. This is due to the fact that urban buses are highly visible for the public, they contribute significantly to air pollution in urban areas, they have small limitations in weight and volume and fuelling is handled via a centralised infrastructure. Results and experiences from real life measurements of energy flows in a Scania Hybrid PEM Fuel Cell Concept Bus are presented in this paper. The tests consist of measurements during several standard duty cycles. The efficiency of the fuel cell system and of the complete vehicle are presented and discussed. The net efficiency of the fuel cell system was approximately 40% and the fuel consumption of the concept bus is between 42 and 48% lower compared to a standard Scania bus. Energy recovery by regenerative braking saves up 28% energy. Bus subsystems such as the pneumatic system for door opening, suspension and brakes, the hydraulic power steering, the 24 V grid, the water pump and the cooling fans consume approximately 7% of the energy in the fuel input or 17% of the net power output from the fuel cell system. The bus was built by a number of companies in a project partly financed by the European Commission’s Joule programme. The comprehensive testing is partly financed by the Swedish programme “Den Gröna Bilen” (The Green Car). A 50 kWel fuel cell system is the power source and a high voltage battery pack works as an energy buffer and power booster. The fuel, compressed hydrogen, is stored in two high-pressure stainless steel vessels mounted on the roof of the bus. The bus has a series hybrid electric driveline with wheel hub motors with a maximum power of 100 kW. Hybrid Fuel Cell Buses have a big potential, but there are still many issues to consider prior to full-scale commercialisation of the technology. These are related to durability, lifetime, costs, vehicle and system optimisation and subsystem design. A very important factor is to implement an automotive design policy in the design and construction of all components, both in the propulsion system as well as in the subsystems

Components of the peptidoglycan-recycling pathway modulate invasion and intracellular survival of Salmonella enterica serovar Typhimurium

This find is registered at Portable Antiquities of the Netherlands with number PAN-0002700