Searched for: subject%3A%22Focusing%22
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Hernandez-Burgos, Sergi (author), Gibert, Ferran (author), Broquetas, Antoni (author), Kleinherenbrink, M. (author), De la Cruz, Adrian Flores (author), Gomez-Olive, Adria (author), Garcia-Mondejar, Albert (author), Aparici, Monica Roca i. (author)
The 2-D frequency-based omega-K method is known to be a suitable algorithm for fully focused SAR (FF-SAR) radar altimeter processors, as its computational efficiency is much higher than equivalent time-based alternatives without much performance degradation. In this article, we provide a closed-form description of a 2-D frequency-domain omega...
journal article 2024
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Altiparmaki, O. (author), Amraoui, Samira (author), Kleinherenbrink, M. (author), Moreau, Thomas (author), Maraldi, Claire (author), Visser, P.N.A.M. (author), Naeije, M.C. (author)
This study presents the first azimuth cutoff analysis in Synthetic Aperture Radar (SAR) altimetry, aiming to assess its applicability in characterizing sea-state dynamics. In SAR imaging, the azimuth cutoff serves as a proxy for the shortest waves, in terms of wavelength, that can be detected by the satellite under certain wind and wave...
journal article 2024
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Spiekhout, Sander (author), van Elburg, Benjamin (author), Voorneveld, J.D. (author), de Jong, N. (author), Versluis, Michel (author), Bosch, Johannes G. (author), Segers, Tim (author)
Phospholipid-coated microbubbles with a uniform acoustic response are a promising avenue for functional ultrasound sensing. A uniform acoustic response requires both a monodisperse size distribution and uniform viscoelastic shell properties. Monodisperse microbubbles can be produced in a microfluidic flow focusing device. Here, we investigate...
journal article 2024
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Lammers, Tom (author)
Over the past decades, global efforts have been made to address climate change and improve the well-being of our planet. The European Union (EU) has set ambitious greenhouse gas (GHG) emission reduction targets and strategies to combat climate change. Bio-energy, specifically biofuels produced from biomass, has gained significant attention as a...
master thesis 2023
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Elango, Saravana Kumar (author)
Diversity, Equity, and Inclusion are one of the latest topics getting attention among companies and universities. This reflects societal representation for gender ratios and many organizations have set goals on gender equality in creating a sustainable and innovative workplace. However, the statistics show that there is sluggish growth for women...
master thesis 2023
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Spruijt, Thomas (author)
master thesis 2023
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Savundranayagam, Reka (author)
In vitro neuromodulation studies play a crucial role in understanding the underlying interaction mechanisms between cells and ultrasound, which is important in the development of new therapies for various neurological disorders. Acoustic focusing, the ability to focus ultrasound at a specific focal length with high spatial resolution, provides a...
master thesis 2023
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Aghajani, S. (author)
Microprocessors, long-lasting batteries, and sensors are a number of examples of nanotechnology revolutionising our daily lives. Nanotechnology is the study, development, and manufacturing of structures and devices which derive unique and novel properties from nanoscale phenomena. To realise such structures and devices, a set of processes...
doctoral thesis 2023
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Xue, H. (author), Zheng, Qianqian (author), Desmet, P.M.A. (author)
Human moods are diffuse, elusive, and often difficult to articulate, yet they hold immense potential for wellbeing-centric design because they play a significant role in shaping our everyday life experiences. A person’s mood influences their experiences with a designed system, and in turn, their interactions with the design also influence their...
conference paper 2023
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Lu, L. (author), Liu, M. (author)
Experts in the field of architecture and landscape design have reached a broad consensus that the Chinese literati garden is a type of built environment that seamlessly integrates architecture and landscape with exceptional cultural, artistic, and historical values. However, previous site-based studies have often leaned towards either a...
journal article 2023
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Rivandi, H. (author), Lopes Marta da Costa, T.M. (author)
Ultrasound (US) neuromodulation and ultrasonic power transfer to implanted devices demand novel ultrasound transmitters capable of steering focused ultrasound waves in 3D with high spatial resolution and US pressure, while having a miniaturized form factor. Meeting these requirements needs a 2D array of ultrasound transducers directly...
journal article 2023
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Kurniawan, Tetuko (author), Sahebdivani, Mahsa (author), Zaremba, Damian (author), Blonski, Slawomir (author), Garstecki, Piotr (author), van Steijn, V. (author), Korczyk, Piotr M. (author)
Two decades of research on droplet formation in microchannels have led to the widely accepted view that droplets form through the squeezing mechanism when interfacial forces dominate over viscous forces. The initially surprising finding that the volume of the droplets is insensitive to the relative importance of these two forces is nowadays...
journal article 2023
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Diekmann, Leon (author), Vasconcelos, Ivan (author), Wapenaar, C.P.A. (author), Slob, E.C. (author), Snieder, Roel (author)
Marchenko-type integrals typically relate so-called focusing functions and Green's functions via the reflection response measured on the open surface of a volume of interest. Originating from one dimensional inverse scattering theory, the extension to two and three dimensions set in motion various new developments regarding imaging in complex...
journal article 2023
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Ehlers, F. (author), Schlembach, Florian (author), Kleinherenbrink, M. (author), Slobbe, D.C. (author)
We demonstrate in this work how we can take advantage of known unfocused SAR (UF-SAR) retracking methods (e.g. the physical SAMOSA model) for retracking of fully-focused SAR (FF-SAR) waveforms. Our insights are an important step towards consistent observations of sea surface height, significant wave height and backscatter coefficient (wind...
journal article 2023
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Schlembach, Florian (author), Ehlers, F. (author), Kleinherenbrink, M. (author), Passaro, Marcello (author), Dettmering, Denise (author), Seitz, Florian (author), Slobbe, D.C. (author)
Estimating the three geophysical variables significant wave height (SWH), sea surface height, and wind speed from satellite altimetry continues to be challenging in the coastal zone because the received radar echoes exhibit significant interference from strongly reflective targets such as sandbanks, sheltered bays, ships etc. Fully focused...
journal article 2023
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Peng, Z. (author), Desmet, P.M.A. (author), Xue, H. (author)
This article presents a comprehensive review of existing literature covering the topic of mood-focused design. It delves into how designers and design researchers currently address mood in the context of experience-driven design. Using a scoping review methodology, we identified and thematically analyzed sixty-six highly relevant articles. Our...
review 2023
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VARGHESE, ZACHARIAH KIRAN (author)
Recently, the construction industry has been confronted with changing regulations, especially with the advent of sustainability goals and circular economy ambitions. The Dutch government wants to accomplish its ambitious initial objective of using 50% fewer primary resources by 2030. Further, by 2050, the goal is to have a waste-free economy...
master thesis 2022
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Burghoorn, Niels (author)
Medical technology has seen great progress over the last centuries, developing increasingly more specialised therapy to benefit human health. The rise of the pharmaceutical industry and the research it drives are contributors to this success. However, in humanity's attempt to tackle more and more complex health issues, the conventional methods...
master thesis 2022
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Eren, E. Deniz (author), Nijhuis, Wouter H. (author), van der Weel, Freek (author), Dede Eren, Aysegul (author), Ansari, Sana (author), Bomans, Paul H.H. (author), Friedrich, Heiner (author), Sakkers, Ralph J. (author), Weinans, Harrie (author), de With, Gijsbertus (author)
Bone is a complex natural material with a complex hierarchical multiscale organization, crucial to perform its functions. Ultrastructural analysis of bone is crucial for our understanding of cell to cell communication, the healthy or pathological composition of bone tissue, and its three-dimensional (3D) organization. A variety of techniques...
journal article 2022
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Myers, N.J. (author), Aslan, Y. (author), Joseph, G. (author)
Phased arrays in near-field communication allow the transmitter to focus wireless signals in a small region around the receiver. Proper focusing is achieved by carefully tuning the phase shifts and the polarization of the signals transmitted from the phased array. In this paper, we study the impact of polarization on near-field focusing and...
conference paper 2022
Searched for: subject%3A%22Focusing%22
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