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Start Over Author "YONG HAN" Publisher elsevier b.v.
197 results on '"YONG HAN"'

3. A phase IIa active-comparator-controlled study to evaluate the efficacy and safety of efinopegdutide in patients with non-alcoholic fatty liver disease

Author

Bruzone, Santiago Oscar, Coronel, Maria Jimena, Gruz, Fernando M., MacKinnon, Ignacio, George, Jacob, Muller, Kate, Lee, Samuel S., Caussy, Cyrielle, Petit, Jean Michel, Ari, Ziv Ben, Braun, Marius, Katchman, Helena, Lurie, Yoav, Veitsman, Ella, Zuckerman, Eli, Aghemo, Alessio, Basili, Stenfania, Fracanzani, Anna Ludovica, Pietrangelo, Antonello, Sacerdoti, David, Rubio Arce, Jose Francisco, de Guevara Cetina, Alma Laura Ladron, Chavez-Tapia, Norberto Carlos, Reyes, Eira Cerda, Pinzon Te, Lourdes Lol-Be, Baker, John R., Ngu, Jeffrey, Orr, David, Janczewska, Ewa, Matusik, Pawel, Stanislaw Sadurski, Maciej Murawski, Akinina, Anna Valerievna, Alpenidze, Diana Nodarievna, Bogomolov, Pavel, Ermakova, Polina Yurievna, Golovach, Albina V., Kim, Sang Gyune, Lee, Jin-Woo, Paik, Yong Han, Park, Jun Yong, Yeon, Jong Eun, Blasco, Victor Vargas, Madueno, Francisco Jose Tinahones, Panero, Jose Luis Calleja, Perez, Esther Molina, Romero-Gómez, Manuel, Cheng, Pin-Nan, Jeng, Wen-Juei, Liu, Chun-Jen, Akyuz, Filiz, Balaban, Hatice Yasemin, Basaranoglu, Metin, Demir, Tevfik, Idilman, Ramazan, Karakan, Tarkan, Gyrina, Olga, Kolesnikova, Olena Vadimivna, Pyvovar, Sergiy M., Oliinyk, Oleksandr, Skrypnyk, Igor, Bassan, Isaac, Bowman, William Kelly, Denham, Douglas Scott, Ghalib, Reem, Lawitz, Eric J., Lucas, Kathryn Jean, Mohseni, Rizwana H., Sanchez, William Eduardo, Vierling, John Moore, Lawitz, Eric, Shankar, R. Ravi, Chaudhri, Eirum, Liu, Jie, Lam, Raymond L.H., Kaufman, Keith D., and Engel, Samuel S.

Published
2023
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24. Lessons learned from a UAV survey and methane emissions calculation at a UK landfill.

Author

Yong, Han, Allen, Grant, Mcquilkin, Jamie, Ricketts, Hugo, and Shaw, Jacob T

Subjects
*LANDFILLS, *METHANE, *WIND measurement, *MASS budget (Geophysics), *ATMOSPHERIC methane, *OPERATING costs, *GREENHOUSE gases
Abstract

• UAVs used for methane flux quantification at a landfill site. • Methane emissions measured: 150.7 kg h−1, with a 1σ uncertainty range of 83.0 kg h−1 to 209.5 kg h−1. • Refined UAV-based mass balance flux method. • Study addresses UAV onboard wind measurements. Accurate quantification of methane emissions from landfills is crucial for improving greenhouse gas inventories and mitigating climate change impacts. Existing methodologies, such as theoretical gas production models and labour-intensive measurement approaches, present limitations including large uncertainties and high operational costs. This study adds to a growing body of research and applications which aim to bridge this gap. To this end, we present a case study using Unmanned Aerial Vehicles (UAVs) equipped with methane and wind instrumentation for a survey of a landfill site in Bury, Manchester, UK, in summer 2022, in order to evaluate and reflect the challenges of the UAV-based mass balance method for quantification of methane emissions from a large heterogeneous source such as landfill. This study offers guidance on defining an appropriate methane background concentration, geospatial interpolation of sampled date, survey sampling strategy, and more importantly, addresses the challenges surrounding UAV wind measurements and spatial characterisation of emission plumes. For the period of the case study, we quantified methane flux for the landfill site to be 150.7 kg h−1 with a 1 standard deviation uncertainty range of 83.0 kg h−1 to 209.5 kg h−1. [ABSTRACT FROM AUTHOR]

Published
2024
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44. Numerical study on the heat transfer performance of trifoliate petal twisted helically coiled tube based on multi-objective optimization.

Author

Yong, Han, Li, Jiani, Li, Bingjun, Meng, Fanlin, Wu, Xuehong, Jin, Tingxiang, Li, Yunquan, and Wu, Yonggang

Subjects
*HEAT transfer coefficient, *HEAT transfer, *STRUCTURAL optimization, *TEMPERATURE distribution, *TUBES, *PRESSURE drop (Fluid dynamics), *GENETIC algorithms
Abstract

In this study, the heat transfer and flow resistance characteristics of a trifoliate petal twisted helically coiled tube (TPTHCT) were numerically studied. First, a mathematical model of the TPTHCT was established and the enhanced heat transfer mechanism was analyzed. Secondly, the TPTHCT and the smooth helically coiled tube (SHCT) were comparatively investigated mainly on the parameters of heat transfer coefficient (h), pressure drop (|Δ p |), heat transfer effectiveness (ε), and heat transfer exergy loss number (ξ HT). Finally, a Multi-Objective Genetic Algorithm (MOGA) was utilized to optimize the TPTHCT. The results indicate that an additional torsional force exists in the TPTHCT, which causes a more complex flow state and makes the temperature distribution more uniform. For the same working condition, h increased (by a maximum of 40 %), |Δ p | increased (by a minimum of 50 %). ξ HT consistently exhibited an opposite variation trend with ε at the same inlet temperatures ratio (τ); further ξ HT can describe the effect of changes in τ , whereas ε cannot. The best result from the optimization was achieved with the objective function being maximum h , minimum |Δ p |, and minimum ξ HT ; and the optimal structural parameters were R co = 25.1 mm, P = 93.2 mm, d i = 8.8 mm, r 2 = 0.3, θ = 432°, a = 0.16, E = 151 mm. • The trifoliate petal twisted helical coiled tube (TPTHCT) is investigated. • Correlation of the transfer exergy loss number (ξ HT) for the TPTHCT is formulated. • The MOGA method is employed for the design of the TPTHCT. [ABSTRACT FROM AUTHOR]

Published
2024
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