- document
-
Cheruiyot, Elijah (author), Mito, Collins (author), Menenti, M. (author)This work presents an improved gravimetric algorithm to derive reference soil moisture, with removal of some of the hypothesis on which its original expression was based, and addition of a new corrective term that takes into account the interdependence between temperature and non-unitary water density. The temperature correction term improves...journal article 2023
- document
-
Reed, Robert (author), Laurenti, L. (author), Lahijanian, Morteza (author)Deep Kernel Learning (DKL) combines the representational power of neural networks with the uncertainty quantification of Gaussian Processes. Hence, it is potentially a promising tool to learn and control complex dynamical systems. In this letter, we develop a scalable abstraction-based framework that enables the use of DKL for control...journal article 2023
- document
-
Xu, F. (author), Hajibeygi, H. (author), Sluys, Lambertus J. (author)In fractured geological formations, as a result of the in-situ stress changes, fractures can propagate or slide. This phenomenon can be efficiently modeled by the extended finite element method (XFEM) when there are only a few fractures present. However, geological reservoirs contain many fractures which can also cross and are densely...journal article 2023
- document
-
Compact and Scalable Capacitorless Linear Voltage Regulator for Power Management Integrated CircuitsMatei, Alexandru (author)The current generation of power management integrated circuits require fully integrated, low cost and low power solutions for voltage regulation. As final blocks in the internal power supply chain, excellent performance linear voltage regulators are required, especially in terms of dynamic response and stability. Since many voltage regulators...master thesis 2022
- document
-
Dierick, Luc (author)In recent years, the big data era has produced an increasing volume and complexity of data that requires processing. To analyze and process these large amounts of data, applications are being scaled on large clusters using distributed data processing frameworks. A more recent trend utilizes hardware accelerators to offload computationally...master thesis 2022
- document
- Kouvelas, N. (author) doctoral thesis 2022
- document
-
Scalability analysis of radical technologies to various aircraft class: Part 2: Sensitivity AnalysisBonnin, V.O. (author), Hoogreef, M.F.M. (author)This study aims at providing a landscape of opportunities and limitations for hybrid-electric aircraft (HEA) and hydrogen-powered aircraft by investigating several technological combinations applied to three aircraft classes: Regional (REG), Short-Medium Range (SMR) and Large Passenger Aircraft (LPA). The preliminary sizing of HEA using...conference paper 2022
- document
-
Zhao, Menglian (author), Zhao, Yibo (author), Zhang, H. (author), Hu, Yaopeng (author), Bao, Yuanxin (author), Ye, Le (author), Qu, Wanyuan (author), Tan, Zhichao (author)This article presents a fully dynamic scalable switched-capacitor delta-sigma modulator that achieves a 94.1-dB dynamic range (DR). Power-and- bandwidth scalability by only changing the clock frequency is achieved using a capacitively biased and swing-enhanced floating inverter operational transconductance amplifier (OTA). Fabricated in a 180...journal article 2022
- document
-
Javanmardi, N. (author), Borja Rosales, L.P. (author), Yazdanpanah, M. J. (author), Scherpen, J.M.A. (author)This paper investigates a distributed formation tracking control law for large-scale networks of mechanical systems. In particular, the formation network is represented by a directed communication graph with leaders and followers, where each agent is described as a port-Hamiltonian system with a constant mass matrix. Moreover, we adopt a...journal article 2022
- document
-
Yu, Xinghuo (author), Tang, Changbing (author), Palensky, P. (author), Colombo, Armando (author)Imagine you want to send money to a friend overseas. Wouldn't it be good if you didn't have to pay hefty fees to the intermediaries, and your friend received the funds very quickly? Now imagine ordering parts to make a product in your manufacturing plant. Wouldn't it be great if you were able to verify where each part comes from and have...journal article 2022
- document
-
Hessels, T.M. (author), Davids, Jeffrey C. (author), Bastiaanssen, W.G.M. (author)Strategic planning of water management at the river-basin scale requires (1) measurement and accounting of individual hydrological processes, (2) quantification of water resources, and (3) their optimal allocation. Scalable Water Balances from Earth Observations (SWEO) is an open-access parameterization enabling automated reporting of water...journal article 2022
- document
-
Hosseinimehr, S.M. (author)In various geo-engineering fields, accurate and scalable modeling of fluid and heat transport in the subsurface fractured porous media is important in order to fulfill scientific, economical and societal expectations on successful field development plans. Such models and the predictions they provide, contribute to efficient and safe operations...doctoral thesis 2021
- document
-
XU, Y. (author)With continuous breakthroughs in quantum science and technology in recent years, the development of quantum computers is moving from pure scientific research to engineering realization. Meanwhile, the underlying physical structures also develop from the initial single qubit to multiple qubits or medium-scale qubit registers. Since qubits are...doctoral thesis 2021
- document
-
Patra, B (author)Quantum computers can provide exponential speedup in solving certain computational problems pertaining to drug discovery, cybersecurity, weather forecasting, etc. Although a quantum computer with just 50-qubits has been shown to surpass the computing power of the best supercomputers in specific applications, millions of qubits would be required...doctoral thesis 2021
- document
-
Subramanian, Aswath (author)Perovskite Solar Cells are an increasing attraction in research with great strides in performance efficiencies. But their commercialization is far from fruition, due to persistent issues. Stability under prolonged exposure to external stresses is a major concern. Furthermore, the adaption of upscaling technologies in research is presently slow....master thesis 2021
- document
-
Bobde, Sharwin (author)Using Recommender Systems with Evolutionary Algorithms is an extremely niche domain. It holds the key to enabling new user interaction designs, where users can effectively configure their experience with a Recommender System. This thesis answers important questions about the scientific aspects of its application to large-scale data through a...master thesis 2021
- document
-
Ramesh Kumar, K. (author), Hajibeygi, H. (author)Subsurface geological formations provide giant capacities for large-scale (TWh) storage of renewable energy, once this energy (e.g. from solar and wind power plants) is converted to green gases, e.g. hydrogen. The critical aspects of developing this technology to full-scale will involve estimation of storage capacity, safety, and efficiency...journal article 2021
- document
-
Hügerich, Lily (author), Shukla, Apoorv (author), Smaragdakis, G. (author)We make a case for a distributed hash table lookup in the network data plane. We argue that the lookup time performance of distributed hash tables can be further improved via an in-network data plane implementation. To this end, we introduce No-hop, an in-network distributed hash table implementation, which leverages the data plane...conference paper 2021
- document
-
Aumayr, Lukas (author), Maffei, Matteo (author), Ersoy, O. (author), Erwig, Andreas (author), Faust, Sebastian (author), Riahi, Siavash (author), Hostáková, Kristina (author), Moreno-Sanchez, Pedro (author)Current permissionless cryptocurrencies such as Bitcoin suffer from a limited transaction rate and slow confirmation time, which hinders further adoption. Payment channels are one of the most promising solutions to address these problems, as they allow the parties of the channel to perform arbitrarily many payments in a peer-to-peer fashion...conference paper 2021
- document
-
Ge, Baoyun (author), Liua, Mingda (author), Dong, J. (author), Liu, Wenbo (author)In view of the increasing demand in torque density, this article propounds the idea of looking for an upper bound of the torque production and average shear stress for surface permanent magnet (SPM) synchronous machines. The derivation is based on the assumption of an infinite permeability of the iron core and employs the transfer relation...journal article 2021