Searched for: subject%3A%22Test%22
(1 - 20 of 1,291)

Pages

document
Owen, C.C. (author)
The imminence of anthropogenic climate change has motivated a global energy transition towards sustainable power generation. Offshore wind—an important contributor to the energy transition—is expanding, not only in turbine size and number of installations, but also into regions with harsher environmental conditions. One of those conditions in...
doctoral thesis 2024
document
Liang, M. (author)
Since the introduction of cementitious materials, shrinkage-induced earlyage cracking (EAC) has emerged as a significant issue that negatively influences the function, durability, and aesthetics of concrete structures like dams, tunnels, and underground garages. This thesis aims to develop new experimental and modelling techniques that help...
doctoral thesis 2024
document
Schelbergen, M. (author)
The potential of utility-scale airborne wind energy (AWE) systems to contribute significantly to the energy transition hinges on their large-scale deployment, which depends on the cost-competitiveness and complementarity with conventional wind turbines. Central to the assessment of these metrics is understanding long-term energy production,...
doctoral thesis 2024
document
Ensink, S.W.H. (author)
About 70 prestressed concrete T-beam bridges, constructed in the Netherlands between 1953–1977, are still in use today with many located in the main highway network. This type of bridge consists of prefabricated and prestressed T-shaped beams, with an integrated deck slab, cross-beams and transverse prestressing. Even if these bridges are well...
doctoral thesis 2024
document
Ganeshpure, D.A. (author)
The integration of wind and solar energy through power electronic converters has introduced new challenges to High Voltage (HV) equipment in the electrical power system. Switchgear, cables, and transformers are now subject to higher dV/dt stress and complex wave shapes due to solid-state switching. This poses a threat to the reliability of the...
doctoral thesis 2024
document
Mohammed, Musaab A. A. (author), Mohamed, Ahmed (author), Szabó, Norbert P. (author), Alarifi, Saad S. (author), Abdelrady, Ahmed (author), Alao, Joseph Omeiza (author)
The recent research aims to investigate the petrophysical and hydrogeological parameters of the Nubian aquifer system (NAS) in Northern Khartoum State, Sudan, using integrated geophysical methods, including surface electrical resistivity and geophysical well-logging. The Nubian aquifer is a transboundary regional aquifer that covers vast areas...
journal article 2024
document
Zhang, P. (author), He, C. (author), Shen, C. (author), Dollevoet, R.P.B.J. (author), Li, Z. (author)
Wheel-rail high-frequency interaction is closely related to the formation of railway short-wave defects. Finite element (FE) method has been widely used to simulate wheel-rail dynamic systems, but its validity in modelling high-frequency interaction has not been fully demonstrated in three dimensions (3D). This work aims at comprehensively...
journal article 2024
document
Vescovini, A. (author), Li, Carina Xiaochen (author), Paz Mendez, J. (author), Jin, Bo Cheng (author), Manes, Andrea (author), Bisagni, C. (author)
This paper presents the work on six single-stringer specimens manufactured using the card-sliding technique with non-crimp fabrics and adopting a Double-Double (DD) stacking sequence. These specimens, representative of sub-structure level components, are used to investigate post-buckling and failure in aerospace structures. Two specimens...
journal article 2024
document
Xie, J. (author), Xu, Y. (author), Meng, Z. (author), Liang, M. (author), Wan, Z. (author), Šavija, B. (author)
Auxetic cementitious cellular composites (ACCCs) exhibit desirable mechanical properties (e.g., high fracture resistance and energy dissipation), due to their unique deformation characteristics. In this study, a new type of cementitious auxetic material, referred to as peanut shaped ACCC, has been designed and subsequently architected using...
journal article 2024
document
Tott-Buswell, Jacques (author), Prendergast, Luke J. (author), Gavin, Kenneth (author)
Monopiles are the most common Offshore Wind Turbine (OWT) foundations due to their simplicity in design, fabrication, and installation. However, large new-generation turbines have led to significant changes in monopile dimensions, necessitating extensive finite element analyses and ground investigations to meet design requirements. While Cone...
journal article 2024
document
Ujjaini Kempaiah, K. (author), Piovesan, Tommaso (author), Zachos, Pavlos K. (author), Michaelis, Dirk (author), Gebbink, Roy (author), van Rooijen, Bart (author), Prieto, Daniel Gil (author), MacManus, David (author), Sciacchitano, A. (author), Sheaf, Christopher (author)
Unsteady inlet flow distortion can influence the stability and performance of any propulsion system, in particular for more novel, short and slim intakes of future aero-engine configurations. As such, the requirement for measurement methods able to provide high spatial resolution data is important to aid the understanding of these flow fields...
journal article 2024
document
Jumelet, Daan (author), van Gent, M.R.A. (author), Hofland, Bas (author), Kuiper, C. (author)
Physical model tests have been performed to study static stability of rock-armoured mild slopes. Current stability design formulae for steeper rock-armoured slopes focus on plunging and surging waves. Slopes of 1:6 and milder usually have more spilling breakers which decreases the load. Also, on mild slopes displaced rocks more often remain...
journal article 2024
document
Li, Chunjie (author), Xu, Chengcheng (author), Chen, Y. (author), Li, Zhibin (author)
To increase the efficiency and safety of expressway, this paper constructed a new intelligent connected cooperative vehicle infrastructure system and its effectiveness was verifid from both data and practical applications. Firstly, considering the convenience of using intelligent networking systems for public transportation, a new intelligent...
journal article 2024
document
Hammer, T.C. (author), Puolakka, Otto (author), Hendrikse, H. (author)
A modeling approach to simulate ice-induced vibrations of vertically sided offshore structures in ice tank experiments is presented. The technique combines replica modeling with the preservation of kinematics during ice-structure interaction. The technique was chosen based on the theoretical understanding that ice-induced vibrations are...
journal article 2024
document
Broomandi, Parya (author), Galán-Madruga, David (author), Satyanaga, Alfrendo (author), Hamidi, Mehdi (author), Ledari, Dorna Gholamzade (author), Fathian, Aram (author), Sarvestan, Rasoul (author), Janatian Ghadikolaei, N. (author), Jahanbakhshi, Ali (author)
The Middle East frontal sand and dust storms (SDS) occur in non-summer seasons, and represent an important phenomenon of this region’s climate. Among the mentioned type, spring SDS are the most common. Trend analysis was used in the current study to investigate the spatial-temporal variability of springtime dust events in the Middle East...
journal article 2024
document
Nijboer, Michiel (author), Jan, A. (author), Chen, M. (author), Batenburg, Kevin (author), Peper, Julia (author), Aarnink, Tom (author), Roozeboom, Fred (author), Kovalgin, Alexey (author), Nijmeijer, Arian (author), Luiten-Olieman, Mieke (author)
Atomic layer deposition (ALD) is known for its unparalleled control over layer thickness and 3D conformality and could be the future technique of choice to tailor the pore size of ceramic nanofiltration membranes. However, a major challenge in tuning and functionalizing a multichannel ceramic membrane is posed by its large internal pore...
journal article 2024
document
Martin, H.A. (author), Smits, Edsger C.P. (author), Poelma, René H. (author), van Driel, W.D. (author), Zhang, Kouchi (author)
This article introduces an online condition monitoring strategy that utilizes a transient heat pulse to detect package thermal performance degradation. The metric employed is the temperature-dependent transient thermal impedance "Zth(t, Tamb)."The proposed methodology offers quantitative insights into package thermal performance degradation...
journal article 2024
document
Feng, W. (author), Moreira Arouche, M. (author), Pavlovic, M. (author)
In this paper, mode II fatigue crack growth properties of the composite-to-steel interface are characterised through different test configurations, namely ENF and 4ENF tests. Different loading types including force control and displacement control methods are compared. An innovative shear strain based method is proposed for monitoring the...
journal article 2024
document
Nativio, A. (author), Jovanovic, O. (author), van der Hoek, J.P. (author), Kapelan, Z. (author)
The concept of circular economy, aiming at increasing the sustainability of products and services in the water and other sectors, is gaining momentum worldwide. Driven by this concept, novel bio-composite materials produced by recovering resources from different parts of the water cycle are now manufactured in The Netherlands. The new materials...
journal article 2024
document
Hu, D. (author), Du, L. (author), Alfreider, Markus (author), Fan, J. (author), Kiener, Daniel (author), Zhang, Kouchi (author)
To fulfill the high-temperature application requirement of high-power electronics packaging, Cu nanoparticle sintering technology, with benefits in low-temperature processing and high-melting point, has attracted considerable attention as a promising candidate for the die-attach interconnect. Comprehensive mechanical characterization of the...
journal article 2024
Searched for: subject%3A%22Test%22
(1 - 20 of 1,291)

Pages