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Nikaein, T. (author), López-Dekker, Paco (author), Steele-Dunne, S.C. (author), Kumar, V. (author), Huber, M. (author)In this article, our aim is to estimate synthetic aperture radar (SAR) observables, such as backscatter in VV and VH polarizations, as well as the VH/VV ratio, cross ratio, and interferometric coherence in VV, from agricultural fields. In this study, we use the decision support system for agrotechnology transfer (DSSAT) crop-growth simulation...journal article 2023
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Flaschel, Moritz (author), Kumar, Siddhant (author), De Lorenzis, Laura (author)We extend the scope of our recently developed approach for unsupervised automated discovery of material laws (denoted as EUCLID) to the general case of a material belonging to an unknown class of constitutive behavior. To this end, we leverage the theory of generalized standard materials, which encompasses a plethora of important constitutive...journal article 2023
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Wang, Q. (author), Zhao, C. (author), Wang, Jianlin (author), Yao, Zhenpeng (author), Wang, Shuwei (author), Kumar, Sai Govind Hari (author), Ganapathy, S. (author), Eustace, S.J. (author), Wagemaker, M. (author)High-entropy alloys/compounds have large configurational entropy by introducing multiple components, showing improved functional properties that exceed those of conventional materials. However, how increasing entropy impacts the thermodynamic/kinetic properties in liquids that are ambiguous. Here we show this strategy in liquid electrolytes...journal article 2023
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Mastrucci, Alessio (author), Niamir, Leila (author), Boza-Kiss, Benigna (author), Bento, Nuno (author), Wiedenhofer, Dominik (author), Streeck, Jan (author), Pachauri, Shonali (author), Wilson, Charlie (author), Chatterjee, Souran (author), Creutzig, Felix (author), Dukkipati, Srihari (author), Feng, Wei (author), Grubler, Arnulf (author), Jupesta, Joni (author), Kumar, Poornima (author), Marangoni, G. (author), Saheb, Yamina (author), Shimoda, Yoshiyuki (author), Shoai-Tehrani, Bianka (author), Yamaguchi, Yohei (author), van Ruijven, Bas (author)Buildings are key in supporting human activities and well-being by providing shelter and other important services to their users. Buildings are, however, also responsible for major energy use and greenhouse gas (GHG) emissions during their life cycle. Improving the quality of services provided by buildings while reaching low energy demand ...review 2023
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Chandra, D. (author), Bakshi, Tuli (author), Bahadur, Jitendra (author), Hazra, Bodhisatwa (author), Vishal, Vikram (author), Kumar, Shubham (author), Sen, Debasis (author), Singh, T. N. (author)A combination of high-resolution imaging, low-pressure gas adsorption, and small-angle X-ray and neutron scattering quantifies changes in the pore characteristics of pulverized shale samples under oxic and anoxic environments up to 300 ℃. Clay-rich early-mature shales have a fair potential to generate hydrocarbons, the total organic carbon...journal article 2023
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Singh, Diwakar (author), Sharma, S. (author), Kumar, Rajeev (author), Chauhan, Vishal S. (author), Vaish, Rahul (author)Although conventional actuators like piezoelectric and electrostrictive are efficient, but they required hard wiring, which contaminates the control signal and adds to the weight of the structure. The current study presents a wireless control strategy using photostrictive actuators. Owing to the fortunate combination of photovoltaic effect...journal article 2023
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Wang, Q. (author), Zhao, C. (author), Yao, Zhenpeng (author), Wang, Jianlin (author), Wu, Fangting (author), Kumar, Sai Govind Hari (author), Ganapathy, S. (author), Eustace, S.J. (author), Wagemaker, M. (author)Developing liquid electrolytes with higher kinetics and enhanced interphase stability is one of the key challenges for lithium batteries. However, the poor solubility of lithium salts in solvents sets constraints that compromises the electrolyte properties. Here, it is shown that introducing multiple salts to form a high-entropy solution,...journal article 2023
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Kumar, Arun (author), Ali, Mohammad (author), Raj, Vivek (author), Kumari, Arti (author), Rachamalla, Mahesh (author), Niyogi, Som (author), Kumar, Dhruv (author), Sharma, Ashok (author), Kumar, S. (author)In recent times Gallbladder cancer (GBC) incidences increased many folds in India and are being reported from arsenic hotspots identified in Bihar. The study aims to establish association between arsenic exposure and gallbladder carcinogenesis. In the present study, n = 200 were control volunteers and n = 152 confirmed gallbladder cancer...journal article 2023
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Kumar, Anand (author), Singh, Karan (author), Shariq, Mohd (author), Lal, C. (author), Conti, M. (author), Amin, Ruhul (author), Chaudhry, Shehzad Ashraf (author)In the era of the Internet of Communication Technologies (ICT), the Internet is becoming more popular and widely used across the world. Radio Frequency IDentification (RFID) has become a prominent technology in healthcare systems for identifying tagged objects. The RFID tags are attached to the billions of different healthcare devices or...journal article 2023
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Marino, Enzo (author), Flaschel, Moritz (author), Kumar, Siddhant (author), De Lorenzis, Laura (author)We extend EUCLID, a computational strategy for automated material model discovery and identification, to linear viscoelasticity. For this case, we perform a priori model selection by adopting a generalized Maxwell model expressed by a Prony series, and deploy EUCLID for identification. The methodology is based on four ingredients: i. full...journal article 2023
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Huber, Manuel (author), Kumar, V. (author), Steele-Dunne, S.C. (author), Rommen, Bjorn (author)Reliable crop monitoring is paramount to achieve the objectives of the Common Agricultural Policy (CAP) and Food and Agriculture Organization. Synthetic Aperture Radar (SAR) provides high-resolution imaging and all-weather data acquisition capabilities for crop monitoring. This study investigates the sensitivity of parcel-level Sentinel-1...conference paper 2023
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Kumar, Prabhat (author), Pinskier, Josh (author), Howard, David (author), Langelaar, Matthijs (author)Compliant mechanisms actuated by pneumatic loads are receiving increasing attention due to their direct applicability as soft robots that perform tasks using their flexible bodies. Using multiple materials to build them can further improve their performance and efficiency. Due to developments in additive manufacturing, the fabrication of...conference paper 2023
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Zheng, Li (author), Karapiperis, Konstantinos (author), Kumar, Siddhant (author), Kochmann, Dennis M. (author)The rise of machine learning has fueled the discovery of new materials and, especially, metamaterials—truss lattices being their most prominent class. While their tailorable properties have been explored extensively, the design of truss-based metamaterials has remained highly limited and often heuristic, due to the vast, discrete design space...journal article 2023
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Bastek, Jan Hendrik (author), Kumar, Siddhant (author), Telgen, Bastian (author), Glaesener, Raphaël N. (author), Kochmann, Dennis M. (author)Inspired by crystallography, the periodic assembly of trusses into architected materials has enjoyed popularity for more than a decade and produced countless cellular structures with beneficial mechanical properties. Despite the successful and steady enrichment of the truss design space, the inverse design has remained a challenge: While...journal article 2022
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Shorachi, Maurice (author), Kumar, V. (author), Steele-Dunne, S.C. (author)Drought is a major natural hazard that impacts agriculture, the environment, and socio-economic conditions. In 2018 and 2019, Europe experienced a severe drought due to below average precipitation and high temperatures. Drought stress affects the moisture content and structure of agricultural crops and can result in lower yields. Synthetic...journal article 2022
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Thakolkaran, P. (author), Joshi, A. (author), Zheng, Y. (author), Flaschel, Moritz (author), De Lorenzis, Laura (author), Kumar, Siddhant (author)We propose a new approach for unsupervised learning of hyperelastic constitutive laws with physics-consistent deep neural networks. In contrast to supervised learning, which assumes the availability of stress–strain pairs, the approach only uses realistically measurable full-field displacement and global reaction force data, thus it lies...journal article 2022
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Kumar, Gulshan (author), Saha, Rahul (author), Conti, M. (author), Thomas, Reji (author), Devgun, Tannishtha (author), Rodrigues, Joel J.P.C. (author)Internet-of-Thing (IoT) faces various security attacks. Different solutions exist to mitigate the intrusion problems. However, the existing solutions lack behind in dealing with heterogeneity of attack sources and features. The future anticipated demand of devices' connections also urge the need of new solutions addressing the concerns of...journal article 2022
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Kumar, V. (author), Huber, Manuel (author), Rommen, Björn (author), Steele-Dunne, S.C. (author)Synthetic Aperture Radar (SAR) data handling, processing, and interpretation are barriers preventing a rapid uptake of SAR data by application specialists and non-expert domain users in the field of agricultural monitoring. To improve the accessibility of Sentinel-1 data, we have generated a reduced-volume, multi-year Sentinel-1 SAR database....journal article 2022
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Kumar, Prabhat (author), Langelaar, Matthijs (author)This paper presents a robust density-based topology optimization approach for synthesizing pressure-actuated compliant mechanisms. To ensure functionality under manufacturing inaccuracies, the robust or three-field formulation is employed, involving dilated, intermediate and eroded realizations of the design. Darcy's law in conjunction with a...journal article 2022
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Joshi, A. (author), Thakolkaran, P. (author), Zheng, Y. (author), Escande, Maxime (author), Flaschel, Moritz (author), De Lorenzis, Laura (author), Kumar, Siddhant (author)Within the scope of our recent approach for Efficient Unsupervised Constitutive Law Identification and Discovery (EUCLID), we propose an unsupervised Bayesian learning framework for discovery of parsimonious and interpretable constitutive laws with quantifiable uncertainties. As in deterministic EUCLID, we do not resort to stress data, but...journal article 2022