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Frey, S. (author), Zhang, Y. (author), Perger, K. (author), An, T. (author), Gabányi, K. (author), Gurvits, L. (author), Hwang, C. Y. (author), Koptelova, E. (author), Paragi, Z. (author), Fogasy, J. (author)Context. The existence of accreting supermassive black holes of up to billions of solar masses at early cosmological epochs (in the context of this work, redshifts z & 6) requires very fast growth rates that are challenging to explain. The presence of a relativistic jet can be a direct indication of activity and accretion status in active...journal article 2024
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Li, Meng (author), Li, Chao (author), Wu, Guanyin (author), An, Xizhong (author), Zhang, Hao (author), Fu, Haitao (author), Yang, Xiaohong (author), Zou, Qingchuan (author), Wu, Yongli (author), Dong, Kejun (author)An in-depth exploration of the reaction kinetics and thermo-chemical behaviors of the raceway can offer practical insights for optimizing the operations of blast furnace (BF), thus achieving a more effective iron and steel production process. In this study, the dynamic characteristics and the flow, heat and mass transfer behaviors in the BF...journal article 2024
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Qin, G. (author), Jan, A. (author), An, Q. (author), Zhou, H. (author), Rietveld, L.C. (author), Heijman, Sebastiaan (author)Worldwide, a considerable amount of oily wastewater is generated, with oil droplets from 2 to 200 nm that are difficult to separate because of their size and colloidal stability. This study presents a novel approach for effectively separating microemulsions via cubic silicon carbide (3C-SiC)-coated alumina (Al2O3) membranes fabricated based on...journal article 2024
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An, X. (author), Pan, S. (author), Jiang, H. (author), Makinwa, K.A.A. (author)CMOS frequency references based on RC oscillators are usually preferred over bulky crystals in loT applications [1-5]. However, due to the process spread and finite temperature coefficient (TC) of most on-chip resistors, RC oscillators require trimming and temperature compensation to achieve decent accuracy. Enabled by high-resolution...conference paper 2023
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Pan, S. (author), An, Xiaomeng (author), Yu, Zheru (author), Jiang, H. (author), Makinwa, K.A.A. (author)This article presents the design and implementation of a compact CMOS RC frequency reference. It consists of a frequency-locked loop (FLL) that locks the period of a voltage-controlled oscillator (VCO) to the time an RC network takes to charge to a reference voltage. Conventionally, an RC time constant with a near-zero temperature coefficient...journal article 2023
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Stochastic-priority-integrated signal coordination considering connected bus operation uncertaintiesOu, S. (author), An, Kun (author), Ma, Wanjing (author), Hegyi, A. (author), van Arem, B. (author)Multimodal arterial signal coordination for buses and passenger vehicles can improve arterial travel smoothness and efficiency. However, uncertainty in bus operations requires signal priority at intersections, which impacts coordination and increases stop times for other traffic types. Therefore, this study proposes a stochastic priority...journal article 2023
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Polat, S. (author), An, Q. (author), Eral, H.B. (author)The increasing prevalence of calcium pyrophosphate dihydrate (CPPD) deposition disease, a form of arthritis with high inflammatory potential, has triggered considerable interest in the search for additives to prevent CPPD crystal formation, particularly in the field of biomineralization. In this context, CPPD crystallization in aqueous...journal article 2023
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An, Xu (author), Yin, Zhiming (author), Tong, Qi (author), Fang, Yiping (author), Yang, M. (author), Yang, Qiaoqiao (author), Meng, Huixing (author)The interactions of external disruptions and technical-human-organizational factors in emergency operations are usually observed. Resilience assessment of emergency systems can improve emergency response capability and system functional recovery. The increasing complexity and coupling of factors in emergency response systems need to be...journal article 2023
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Benke, P. (author), Gabányi, K. E. (author), Frey, S. (author), An, T. (author), Gurvits, L. (author), Kun, E. (author), Mohan, P. (author), Paragi, Z. (author), Ros, E. (author)Context. PSO J334.2028+1.4075 (PSO J334) is a luminous quasar located at redshift z = 2.06. The source gained attention when periodic flux density variations were discovered in its optical light curve. These variations were initially interpreted as the variability due to the orbital motion of a supermassive black hole binary (SMBHB) residing...journal article 2023
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Frey, Sándor (author), An, Tao (author), Gabányi, Krisztina (author), Gurvits, L. (author), Krezinger, Máté (author), Melnikov, Alexey (author), Mohan, Prashanth (author), Paragi, Zsolt (author), Perger, Krisztina (author)The powerful high-redshift quasar J2102+6015 (at z = 4.575) may provide useful information for studying supermassive black hole growth, galaxy evolution and feedback in the early Universe. The source has so far been imaged with very-long-baseline interferometry (VLBI) at 2/8 GHz (S/X) bands only, showing complex compact structure. Its total...journal article 2023
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Perger, Krisztina (author), Zhang, Yingkang (author), Frey, Sándor (author), An, Tao (author), Gabányi, Krisztina E. (author), Gurvits, L. (author), Hwang, Chorng Yuan (author), Koptelova, Ekaterina (author), Paragi, Zsolt (author), Wang, Ailing (author)There are approximately 250 quasars discovered at redshift z ≥ 6, of which only a handful were detected in radio bands, and even fewer were imaged with the highest resolution very long baseline interferometry (VLBI) technique. Here we report the results of our dual-frequency observations with the Very Long Baseline Array (VLBA) of two such...journal article 2023
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Jiang, Chuanning (author), An, Xizhong (author), Li, Meng (author), Wu, Yuhang (author), Gou, Dazhao (author), Wu, Yongli (author)Mixing structures and characteristics are crucial to the mixing quality of spherical/cylindrical binary granular systems like the biomass-coal mixtures which can affect energy release and carbon emissions. In this work, the mixing of binary spheres/cylinders in a rotating drum was numerically reproduced by using discrete element method (DEM)....journal article 2023
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Ghassemian, Mona (author), Vukobratovic, Dejan (author), Papadopoulos, Christos (author), An, Xueli (author), Chatzimisios, Periklis (author), Aijaz, Adnan (author), Li, Peizheng (author), Valenzuela, Andres Meseguer (author), Venkatesha Prasad, Ranga Rao (author)With the increasing usage of robots in numerous vertical industries, the need for standardised solutions has intensified. A number of research and industrial communities and other Standards Developing Organisations (SDOs) have been actively working to identify areas in the robotics and automation sector that are suitable for standardisation. On...conference paper 2023
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Gabanyi, K.E. (author), Belladitta, S. (author), Frey, S. (author), Orosz, G. (author), Gurvits, L. (author), Rozgonyi, Krisztina (author), An, T. (author), Cao, H (author), Paragi, Z (author), Perger, Krisztina (author)Active galactic nuclei (AGN) have been observed as far as redshift. They are crucial in investigating the early Universe as well as the growth of supermassive black holes at their centres. Radio-loud AGN with their jets seen at a small viewing angle are called blazars and show relativistic boosting of their emission. Thus, their apparently...journal article 2023
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An, Xiaomeng (author)This paper presents a 0.01mm2 10MHz FLL-based RC frequency reference that does not require the use of resistors with complementary temperature coefficients (TCs), thus facilitating its implementation in a wide range of standard CMOS processes. Fabricated in a 0.18μm CMOS process, it achieves a frequency inaccuracy of ±0.28% from −45°C to 125°C...master thesis 2022
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Yao, Dengzhi (author), Wang, Ju (author), Cai, Yao (author), Zhao, Tingting (author), An, Xizhong (author), Zhang, Hao (author), Fu, Haitao (author), Yang, Xiaohong (author), Zou, Qingchuan (author), Wang, L. (author)Understanding and controlling the composition segregation during powder spreading is of key importance in the additive manufacturing (AM) of composite materials. Under this circumstance, the segregation behavior of WC/316 L composite powders during spreading in laser powder bed fusion (LPBF) AM was numerically investigated by the discrete...journal article 2022
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Krezinger, Máté (author), Perger, Krisztina (author), Gabányi, Krisztina Éva (author), Frey, Sándor (author), Gurvits, L. (author), Paragi, Zsolt (author), An, Tao (author), Zhang, Yingkang (author), Cao, Hongmin (author), Sbarrato, Tullia (author)High-redshift radio sources provide plentiful opportunities for studying the formation and evolution of early galaxies and supermassive black holes. However, the number of known radio-loud active galactic nuclei (AGN) above redshift 4 is rather limited. At high redshifts, it appears that blazars, with relativistically beamed jets pointing...journal article 2022
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Zhang, Y. (author), An, T. (author), Wang, A. (author), Frey, S. (author), Gurvits, L. (author), Gabányi, K. E. (author), Perger, K. (author), Paragi, Z. (author)The nature of jets in active galactic nuclei (AGNs) in the early Universe and their feedback to the host galaxy remains a highly topical question. Observations of the radio structure of high-redshift AGNs enabled by very long baseline interferometry (VLBI) provide indispensable input into studies of their properties and role in the galaxies'...journal article 2022
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Clancy III, R.F. (author), Ge, Yan (author), An, Longfei (author)Research in engineering ethics has examined the effects of education on the ethical knowledge and reasoning of students from mostly WEIRD (Western educated industrialized rich democratic) cultures. However, it is unclear that findings from WEIRD samples are transferable across cultures. China now graduates and employs more STEM (science...journal article 2022
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Guo, Yanan (author), An, Shi (author), Comes, M. (author)During infectious disease outbreaks, early warning is crucial to prevent and control the further spread of the disease. While the different waves of the Covid-19 pandemic have demonstrated the need for continued compliance, little is known about the impact of warning messages and risk perception on individual behavior in public health...journal article 2022