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Refractory CrMoNbWV High-Entropy Alloy Manufactured by Mechanical Alloying and Spark Plasma Sintering: Evolution of Microstructure and Properties

Razumov, Nikolay (author), Makhmutov, Tagir (author), Kim, Artem (author), Shemyakinsky, Boris (author), Popovich, V. (author), Popovich, Anatoly (author)

In this study, bulk samples of a CrMoNbWV high-entropy alloy (HEA) were obtained for the first time by spark plasma sintering (SPS) of mechanically alloyed (MA) powders at 1200 °C, 1300 °C, and 1400 °C. Microstructure evolution, phase formation as well as wear and corrosion behavior were investigated. The MA powders’ phase composition was found...

journal article 2021

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FRETboard: semisupervised classification of FRET traces

de Lannoy, C.V. (author), Filius, M. (author), Kim, S.H. (author), Joo, C. (author), de Ridder, Dick (author)

Förster resonance energy transfer (FRET) is a useful phenomenon in biomolecular investigations, as it can be leveraged for nanoscale measurements. The optical signals produced by such experiments can be analyzed by fitting a statistical model. Several software tools exist to fit such models in an unsupervised manner but lack the flexibility...

journal article 2021

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Periodic chemical cleaning with urea: Disintegration of biofilms and reduction of key biofilm-forming bacteria from reverse osmosis membranes

Sanawar, H. (author), Kim, L. H. (author), Farhat, N. M. (author), van Loosdrecht, Mark C.M. (author), Vrouwenvelder, J.S. (author)

Biofouling is one of the major factors causing decline in membrane performance in reverse osmosis (RO) plants, and perhaps the biggest hurdle of membrane technology. Chemical cleaning is periodically carried out at RO membrane installations aiming to restore membrane performance. Typical cleaning agents used in the water treatment industry...

journal article 2021

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Kinetics of DNA looping by Anabaena sensory rhodopsin transducer (ASRT) by using DNA cyclization assay

Lee, Jae Jin (author), Kim, S.H. (author), Lee, Keon Ah (author), Chuon, Kimleng (author), Jung, Kwang Hwan (author), Kim, Doseok (author)

DNA cyclization assay together with single-molecule FRET was employed to monitor protein-mediated bending of a short dsDNA (~ 100 bp). This method provides a simple and easy way to monitor the structural change of DNA in real-time without necessitating prior knowledge of the molecular structures for the optimal dye-labeling. This assay was...

journal article 2021

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Heat treatment effect on the structure formation of directionally solidified nickel alloy after SLM

Borisov, Evgenii (author), Starikov, Kirill (author), Kim, Artem (author), Popovich, V. (author), Popovich, Anatoly (author)

The aim of this study was to determine the influence of heat treatment on the microstructure of single-crystal nickel-based alloy manufactured by selective laser melting with a high-temperature substrate preheating. The change of gamma/gamma prime -phases ratio was established as a result of various heat treatment modes.

conference paper 2021

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Active Control of Irreversible Faradic Reactions to Enhance the Performance of Reverse Electrodialysis for Energy Production from Salinity Gradients

Oh, Yoontaek (author), Han, Ji Hyung (author), Kim, Hanki (author), Jeong, Namjo (author), Vermaas, D.A. (author), Park, Jin Soo (author), Chae, Soryong (author)

Irreversible faradic reactions in reverse electrodialysis (RED) are an emerging concern for scale-up, reducing the overall performance of RED and producing environmentally harmful chemical species. Capacitive RED (CRED) has the potential to generate electricity without the necessity of irreversible faradic reactions. However, there is a...

journal article 2021

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A Blockchain-Based Federated Forest for SDN-Enabled In-Vehicle Network Intrusion Detection System

Aliyu, Ibrahim (author), Feliciano, Marco Carlo (author), van Engelenburg, S.H. (author), Kim, Dong Ok (author), Lim, Chang Gyoon (author)

In-vehicle communication systems are usually managed by controller area networks (CAN). By broadcasting packets to their bus, the CAN facilitates the interaction between Electronic Control Units (ECU) that coordinate, monitor and control internal vehicle components. With no authentication mechanism for identifying the legitimacy and source of...

journal article 2021

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The emerging landscape of single-molecule protein sequencing technologies

Bohländer, P.R. (author), Filius, M. (author), van Kooten, Xander F. (author), Pomorski, A.K. (author), Schmid, S. (author), Dekker, C. (author), Eelkema, R. (author), Kim, S.H. (author), Joo, C. (author)

Single-cell profiling methods have had a profound impact on the understanding of cellular heterogeneity. While genomes and transcriptomes can be explored at the single-cell level, single-cell profiling of proteomes is not yet established. Here we describe new single-molecule protein sequencing and identification technologies alongside...

review 2021

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Self-healing capacity of Mullite-Yb₂SiO₅ environmental barrier coating material with embedded Ti₂AlC MAX phase particles

Lee, Gye Won (author), Kim, Tae Woo (author), Sloof, W.G. (author), Lee, Kee Sung (author)

Repetitive heating and cooling cycles inevitably cause crack damage of hot gas components of gas turbine engines, such as blades and vanes. In this study the self-healing capacity is investigated of mullite + ytterbium monosilicate (Yb₂SiO₅) as EBC material with Ti₂AlC MAX phase particles embedded as a crack...

journal article 2021

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Shear band-driven precipitate dispersion for ultrastrong ductile medium-entropy alloys

Jang, Tae Jin (author), Choi, Won Seok (author), Kim, Dae Woong (author), Choi, Gwanghyo (author), Jun, Hosun (author), Ferrari, A. (author), Körmann, F.H.W. (author), Choi, Pyuck Pa (author), Sohn, Seok Su (author)

Precipitation strengthening has been the basis of physical metallurgy since more than 100 years owing to its excellent strengthening effects. This approach generally employs coherent and nano-sized precipitates, as incoherent precipitates energetically become coarse due to their incompatibility with matrix and provide a negligible...

journal article 2021

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Bridging-induced phase separation induced by cohesin SMC protein complexes

Ryu, J.K. (author), Bouchoux, Céline (author), Liu, Hon Wing (author), Kim, E. (author), Minamino, Masashi (author), de Groot, Ralph (author), Katan, A.J. (author), Bonato, Andrea (author), Marenduzzo, Davide (author), Michieletto, Davide (author), Uhlmann, Frank (author), Dekker, C. (author)

Structural maintenance of chromosome (SMC) protein complexes are able to extrude DNA loops. While loop extrusion constitutes a fundamental building block of chromosomes, other factors may be equally important. Here, we show that yeast cohesin exhibits pronounced clustering on DNA, with all the hallmarks of biomolecular condensation. DNA...

journal article 2021

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High-Resolution Single-Molecule FRET via DNA eXchange (FRET X)

Filius, M. (author), Kim, S.H. (author), Severins, I.W.H. (author), Joo, C. (author)

Single-molecule FRET is a versatile tool to study nucleic acids and proteins at the nanometer scale. However, currently, only a couple of FRET pairs can be reliably measured on a single object, which makes it difficult to apply single-molecule FRET for structural analysis of biomolecules. Here, we present an approach that allows for the...

journal article 2021

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Screening wave conditions for the occurrence of green water events on sailing ships

van Essen, S.M. (author), Monroy, Charles (author), Shen, Zhirong (author), Helder, Joop (author), Kim, Dae Hyun (author), Seng, Sopheak (author), Ge, Zhongfu (author)

Design loads for extreme wave events on ships, such as slamming and green water, are hard to define. These events depend on details in the incoming waves, ship motions and structure layout, which requires high-fidelity tools such as CFD or experiments to obtain the correct loads. These tools (presently) do not have the capability to fully...

journal article 2021

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Supporting human-centered design in psychologically distant problem domains: The design for cybersecurity cards

Rao, Vivek (author), Moore, George (author), Jung, Hyun Jie (author), Kim, E.Y. (author), Agogino, Alice (author), Goucher-Lambert, Kosa (author)

Increasingly digital products and services make cybersecurity a crucial issue for designers. However, human-centered designers struggle to consider it in their work, partially a consequence of the high psychological distance between designers and cybersecurity. In this work, we build on the Design for Cybersecurity (DfC) Cards, an...

journal article 2021

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Association between thyroid function and heart rate monitored by wearable devices in patients with hypothyroidism

Kim, K. (author), Lee, Juhui (author), Ahn, Chang Ho (author), Yu, Hyeong Won (author), Choi, June Young (author), Lee, Ho Young (author), Lee, Won Woo (author), Moon, Jae Hoon (author)

Background: Heart rate (HR) monitored by a wearable device (WD) has demonstrated its clinical feasibility for thyrotoxicosis subjects. However, the association of HR monitored by wearables with hypothyroidism has not been examined. We assessed the association between serum thyroid hormone concentration and three WD-HR parameters in...

journal article 2021

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Suppression of the Phase Coexistence of the fcc-fct Transition in Hafnium-Hydride Thin Films

Bannenberg, L.J. (author), Schreuders, H. (author), Kim, H.J. (author), Sakaki, Kouji (author), Hayashi, Shigenobu (author), Ikeda, Kazutaka (author), Otomo, Toshiya (author), Dam, B. (author), Asano, Kohta (author)

Metal hydrides may play a paramount role in a future hydrogen economy. While most applications are based on nanostructured and confined materials, studies considering the structural response of these materials to hydrogen concentrate on bulk material. Here, using in situ in- and out-of-plane X-ray diffraction and reflectometry, we study the fcc ...

journal article 2021

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Acoustic subsurface-atomic force microscopy: Three-dimensional imaging at the nanoscale

Sharahi, Hossein J. (author), Janmaleki, Mohsen (author), Tetard, Laurene (author), Kim, Seonghwan (author), Sadeghian, Hamed (author), Verbiest, G.J. (author)

The development of acoustic subsurface atomic force microscopy, which promises three-dimensional imaging with single-digit nanometer resolution by the introduction of ultrasound actuations to a conventional atomic force microscope, has come a long way since its inception in the early 1990s. Recent advances provide a quantitative understanding...

journal article 2021

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Design of an ultrasound transceiver asic with a switching-artifact reduction technique for 3D carotid artery imaging

Kim, Taehoon (author), Fool, F. (author), Simoes dos Santos, D. (author), Chang, Z.Y. (author), Noothout, E.C. (author), Vos, H.J. (author), Bosch, Johan G. (author), Verweij, M.D. (author), de Jong, N. (author), Pertijs, M.A.P. (author)

This paper presents an ultrasound transceiver application-specific integrated circuit (ASIC) directly integrated with an array of 12 × 80 piezoelectric transducer elements to enable next-generation ultrasound probes for 3D carotid artery imaging. The ASIC, implemented in a 0.18 µm high-voltage Bipolar-CMOS-DMOS (HV BCD) process, adopted a...

journal article 2021

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How Florist Apprentices Explore Bouquet Designs: Supporting Design Space Exploration for Vocational Students

Kim, Kevin Gonyop (author), Oertel, Catharine (author), Dillenbourg, Pierre (author)

Context: Exploring the design space is an important process in a design task. In this study, we considered design space exploration for the learners in vocational education and training (VET). The goal of the study was to investigate how they explore the design space while focusing on the effect of a graph-like interface on the learner's...

journal article 2021

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Electrostatic electron mirror in SEM for simultaneous imaging of top and bottom surfaces of a sample

Abedzadeh, Navid (author), Krielaart, M.A.R. (author), Kim, Chung Soo (author), Simonaitis, John (author), Hobbs, Richard (author), Kruit, P. (author), Berggren, Karl K. (author)

The use of electron mirrors in aberration correction and surface-sensitive microscopy techniques such as low-energy electron microscopy has been established. However, in this work, by implementing an easy to construct, fully electrostatic electron mirror system under a sample in a conventional scanning electron microscope (SEM), we present a...

journal article 2021