...nonlinear algebraic equations encountered in numerical simulators that discretize partial differential equations. The method is formally second order and efficient unless the algebraic system contains nonlinear stiffness, in the sense that a subset of equations imposes strong constraints on the solution...
...rooted in the service architecture, and may therefore be expensive to fix if they remain undetected. SINTEF develops methods for analysing the scalability of services. The CloudScale project (coordinated by SINTEF - see www.cloudscale-project.eu) developed methods and tools to assess the scalability of...
...taken care of in a systematic and controlled manner. Within the EU regulatory concerning rail traffic, the DeBo role is covered in relevant Directives (in Directive 2008/57/EC, with amendment 2014/106/EU: Article 17 (3) and Annex V, and in Directive (EU) 2016/797: Article 45 and Annex IV). The result from...
SINTEF assesses, designs, and builds electrotechnical components based on superconductors. In addition, both conductor and insulation materials are characterized at cryogenic temperatures. Our services: Cooled down to temperatures of 77 K (-196°C) or lower, superconductors carry electric currents that...
What is SF6, what is it used for, and why should we find replacements? What is SF6? SF6, or sulphur hexafluoride, is a man-made gas that is an extremely good electrical insulator and current interrupting medium. The gas is mainly used in high-voltage switchgears in the electric power grid . SF6: What...
...infrastructure. Use of satellite navigation technologies for aviation provides substantial benefits to both the service providers, as well as the individual and combined user communities. SINTEF's main focus area in this domain is Ground Based Augmentation System (GBAS) development for low visibility operations...
...outcomes of the model, one needs to employ uncertainty quantifications. However, traditional uncertainty quantifications can require excessive runtime and it can be difficult to properly analyze the results. By now, there is a vast array of uncertainty quantification methods, but they often rely on regularity...
Digital designs and develops optimization software for multimodal passenger and freight transport. Multimodal travel planning The European Union is fostering the development of cross-border multimodal planning services by establishing a regulation framework for their coordinated and coherent deployment...
...case or safety demonstration – have for a long time been required for safety critical systems in important industrial areas such as nuclear, automotive and railways. Safety case is an efficient method for helping the developing company to focus on the simple but important question "How do you know that your...
...classification or predictive analysis. The more complicated methods are particularly suited for modelling complex systems with many parameters and non-linear behaviour and are most successful when high quality data is available, preferably in large amounts. For industrial applications, utilization of machine...
Condensation of CO2 in heat exchangers and separators occurs in processes for liquefaction of a CO2-rich gas phase, for example to increase purity of the gas, to meet ship transportation specification. Through multiscale modelling and experimental activity, SINTEF works with combining nanotechnology...
...current, voltage and frequency to a different set of such values. The transformer is such an apparatus for energy conversion. The transformer is used to convert alternating voltage from a value on an input to a different value at an output. It can only transform alternating current and the frequency is...
Stock Exchange to compute optimal clearing and settlement in the Norwegian financial market. All trades in financial instruments (e.g. stocks and bonds) are entered into the security settlement system. Then, during the night, all trades that are entered and matched on one day are settled simultaneously...
...of available elements, according to some preference or criteria. If then we represent and solve our problem by means of mathematics, we are in the realm of mathematical optimization. You are in the center of Oslo and want to get to SINTEF, in Forskningsveien 1, as fast as you can. You know what you can...
Synthesizing data for machine learning and other data-driven methods. In cases where little data exists from real-life applications, i.e. few measurements, newly installed sensors, limited resources, etc., synthetic data can be generated to ensure a good foundation for training machine learning models...
...a finite (and huge) set of discrete candidate solutions. Combinatorial optimization is the key competence area for the Optimization Group at SINTEF Digital. The main methods we use to solve these optimization problems are listed below. Combinatorial optimisation - subtopics Heuristics and metaheuristics...
...simple like recognizing bar codes or more complex like identifying persons or actions. Our expertise in the field covers: Image Segmentation Object and Pattern Recognition Digital image processing Computer Vision...
... for each individual assignment) and the approval is communicated to the customer rather than to the assessor. For all projects where SINTEF is or has been ISA, the responsible national safety authority - including non- European countries such as Australia, India and Malaysia - has explicitly approved...
Functional safety is the part of the overall safety that depends on a system or equipment operating correctly in response to its inputs. Examples of systems and product that may have to satiesfy IEC 61508 or similar standards: Emergency shut-downs systems Safety valves Crane safe load indicator Fire alarm systems...