Train scheduling is a critical activity in rail traffic management, both off-line (timetabling) and on-line (dispatching). Time-Indexed formulations for scheduling problems are stronger than other classical formulations, like Big-M. Unfortunately, their size grows usually very large with the size of...
I forbindelse med den pågående anskaffelsesprosessen av RVU 2025 2031, har Statens vegvesen bestilt et notat fra SINTEF som skal brukes som kunnskapsgrunnlag på to tema. Temaene er I) bruk av webpanel vs. Folkeregisteret som utvalgsgrunnlag i reisevaneundersøkelser, og II) bruk av ulike datakilder...
Fish behaviour affects the performance of selection devices in fishing gears. Traditionally, fish behaviour in relation to selection devices is assessed by direct observation. However, this approach has limitations, and the observations are not explicitly incorporated in the selectivity models...
Hvordan kan vi ruste Norge mot fremtidens ekstremvær? Den nasjonale konferansen for klimatilpasning samlet 300 aktører på tvers av sektorer og fagfelt for å finne løsninger....
Gas fermentation using acetogens via the Wood–Ljungdahl pathway offers a sustainable route for converting CO₂ and hydrogen into valuable chemicals. This study presents a comprehensive techno-economic analysis of a 50,000 t/a acetic acid (AcOH) production plant based on gas fermentation. Three...
This study examines the uni-axial unconfined compressive strength of stabilized clay mixed with different types of binders [1]. The binders tested were cement kiln dust (CKD), lime (CaO) and ordinary Portland cement (OPC) exclusively or in different combinations. Samples were hardened for...
We consider the Lame form of the elasticity system and demonstrate the famous paradox, which can be obtained by the limit passage in the polygonal plates with very small sides as the length of sides goes to zero. The phenomenon is that boundary conditions in the original problem and the limit...
The design load levels of Arctic offshore structures are likely to be determined by first year sea ice ridges and rubble field. Better understanding of ice rubble will help us to determine this design load level accurate enough. From a set of punch shear tests conducted by Heinonen, J. (2004) in the...