- document
-
Luan, Ying (author), Renaud, Guillaume (author), Raymond, Jason L. (author), Segers, Tim (author), Lajoinie, Guillaume (author), Beurskens, Robert (author), Mastik, Frits (author), Kokhuis, Tom J A (author), van der Steen, A.F.W. (author), Versluis, Michel (author), de Jong, N. (author)In this study we present a combined optical sizing and acoustical characterization technique for the study of the dynamics of single freely-floating ultrasound contrast agent microbubbles exposed to long burst ultrasound excitations up to the milliseconds range. A co-axial flow device was used to position individual microbubbles on a...journal article 2016
- document
-
Qin, Hongbo (author), Luan, Xinghe (author), Feng, Chuang (author), Yang, Daoguo (author), Zhang, Kouchi (author)For the limitation of experimental methods in crystal characterization, in this study, the mechanical, thermodynamic and electronic properties of wurtzite and zinc-blende GaN crystals were investigated by first-principles calculations based on density functional theory. Firstly, bulk moduli, shear moduli, elastic moduli and Poisson's ratios...journal article 2017
- document
- Mulvana, Helen (author), Browning, Richard J. (author), Luan, Ying (author), de Jong, N. (author), Tang, Meng-Xing (author), Eckersley, Robert J. (author), Stride, Eleanor (author) journal article 2017
- document
-
Luan, X. (author), Wang, Y. (author), De Schutter, B.H.K. (author), Meng, Lingyun (author), Lodewijks, G. (author), Corman, F. (author)We study the integration of real-time traffic management and train control by using mixed-integer nonlinear programming (MINLP) and mixed-integer linear programming (MILP) approaches. In Part 1 of the paper (Luan et al., 2018), three integrated optimization problems, namely the P<sub>NLP</sub> problem (NLP: nonlinear programming), the P<sub...journal article 2018
- document
-
Luan, X. (author), Wang, Y. (author), De Schutter, B.H.K. (author), Meng, Lingyun (author), Lodewijks, G. (author), Corman, F. (author)We study the integration of real-time traffic management and train control by using mixed-integer nonlinear programming (MINLP) and mixed-integer linear programming (MILP) approaches. Three innovative integrated optimization approaches for real-time traffic management that inherently include train control are developed to deliver both a train...journal article 2018
- document
-
Luan, Hualong (author), Ding, P (author), Wang, Zhengbing (author), Yang, S.L. (author), Lu, Jin You (author)Morphodynamics of world's river deltas are increasingly affected by human activities, which are of great ecological, economic and social implications. However, impacts of human interventions in deltaic regions are insufficiently<br/>understood, especially superimposed upon diminishing sediment supplies. This study uses the heavily interfered...journal article 2018
- document
-
Luan, X. (author), De Schutter, B.H.K. (author), Corman, F. (author), Lodewijks, G. (author)In railway operations, when a disruption occurs, train dispatchers aim to adjust the affected schedule and to minimize negative consequences during and after the disruption. As one of the most important components of the railway system, railway signals are used to guarantee the safety of train services. We study the train dispatching problem...journal article 2018
- document
-
Luan, X. (author), De Schutter, B.H.K. (author), van den Boom, A.J.J. (author), Corman, F. (author), Lodewijks, G. (author)We introduce a distributed optimization method for improving the computational efficiency of real-time traffic management approaches for large-scale railway networks. We first decompose the whole network into a pre-defined number of regions by using an integer linear optimization approach. For each resulting region, a mixed-integer linear...journal article 2018
- document
-
Qin, Hongbo (author), Kuang, Tianfeng (author), Luan, Xinghe (author), Li, Wangyun (author), Xiao, Jing (author), Zhang, Ping (author), Yang, Daoguo (author), Zhang, Kouchi (author)The mechanical and electronic properties of two GaN crystals, wurtzite and zinc-blende GaN, under various hydrostatic pressures were investigated using first principles calculations. The results show that the lattice constants of the two GaN crystals calculated in this study are close to previous experimental results, and the two GaN crystals...journal article 2018
- document
-
Skachkov, Ilya (author), Luan, Ying (author), Van Tiel, Sandra T. (author), van der Steen, A.F.W. (author), de Jong, N. (author), Bernsen, Monique R. (author), Kooiman, Klazina (author)In vivo cell tracking of therapeutic, tumor, and endothelial cells is an emerging field and a promising technique for imaging cardiovascular disease and cancer development. Site-specific labeling of endothelial cells with the MRI contrast agent superparamagnetic iron oxide (SPIO) in the absence of toxic agents is challenging. Therefore, the...journal article 2018
- document
- Lajoinie, Guillaume (author), Luan, Ying (author), Gelderblom, Erik (author), Dollet, Benjamin (author), Mastik, Frits (author), Dewitte, Heleen (author), Lentacker, Ine (author), de Jong, N. (author), Versluis, Michel (author) journal article 2018
- document
-
Luan, X. (author)This thesis adopts optimization approaches to tackle the traffic management problem for railway networks, aiming at achieving better performance of railway operations, in terms of punctuality, reliability, non-discrimination, capacity utilization, and energy efficiency. Specifically, the following four aspects are considered: - Non...doctoral thesis 2019
- document
-
Luan, Yuyang (author), Dwight, R.P. (author)Simulating wind-turbines in Reynolds-averaged Navier-Stokes (RANS) codes is highly challenging, at least partly due to the importance of turbulence anisotropy in the evolution of the wake. We present a preliminary investigation into the role of anisotropy in RANS simulations of vertical-axis turbines, by comparison with LES. Firstly an LES...journal article 2020
- document
-
Wu, Changsheng (author), Rwei, A.Y. (author), Lee, Jong Yoon (author), Ouyang, Wei (author), Jacobson, Lauren (author), Shen, Haixu (author), Luan, Haiwen (author), Xu, Yameng (author), Li, S. (author)Background Current near-infrared spectroscopy (NIRS)-based systems for continuous flap monitoring are highly sensitive for detecting malperfusion. However, the clinical utility and user experience are limited by the wired connection between the sensor and bedside console. This wire leads to instability of the flap-sensor interface and may...journal article 2021
- document
-
Luan, Pengqian (author), Liu, Yunting (author), Li, Yongxing (author), Chen, Ran (author), Huang, Chen (author), Gao, Jing (author), Hollmann, F. (author), Jiang, Yanjun (author)An aqueous chemoenzymatic cascade reaction combining Pd-catalyzed C-C formation and enzymatic C=C asymmetric hydrogenation (AH) was developed for enantioselective synthesis of tertiary α-aryl cycloketones in good yields and excellent enantioselectivities. The stereopreference of the enzyme in AH of α-aryl cyclohexenones was studied. An...journal article 2021
- document
-
Accretion-erosion conversion in the subaqueous Yangtze Delta in response to fluvial sediment declineLuan, Hua Long (author), Ding, Ping Xing (author), Yang, Shi Lun (author), Wang, Zhengbing (author)Identifying the pattern of delta morphological change under decreasing sediment flux due to dam construction is essential for sustainable management in such densely populated coastal areas. In this study, we investigated the morphological processes of the Yangtze mouth bar and prodelta based on bathymetric data on a decadal-interannual scale ...journal article 2021
- document
-
Wang, Tiao (author), Luan, Yao (author)Reinforcement corrosion induced by chloride ingress is one of the major threats of reinforced concrete (RC) structures exposed to chloride attack. The cracks of concrete cover provide additional paths of chloride ingress and facilitate the reinforcement corrosion. Current information regarding the influence of crack development on corrosion...conference paper 2021
- document
-
Gao, Xin (author), Li, Xueyuan (author), Liu, Qi (author), Li, Z. (author), Yang, Fan (author), Luan, Tian (author)As one of the main elements of reinforcement learning, the design of the reward function is often not given enough attention when reinforcement learning is used in concrete applications, which leads to unsatisfactory performances. In this study, a reward function matrix is proposed for training various decision-making modes with emphasis on...journal article 2022
- document
-
Wang, Yiping (author), Li, Xueyuan (author), Liu, Qi (author), Li, Songhao (author), Luan, Tian (author), Li, Z. (author)The skid-steered vehicle has the advantages of simple structure and strong maneuverability. Its formation driving can effectively improve safety, reduce energy consumption and exert its benefits, and has wide application prospects in military and civilian fields. Differential skid steering has strong horizontal and vertical coupling...conference paper 2023
- document
-
Luan, Liping (author), Shi, Puxin (author), Wang, Zhi (author), Kapteijn, F. (author), Liu, Xinlei (author)Novel membrane materials for H<sub>2</sub> separation are wanted. How to overcome the “trade-off” between membrane permeability and selectivity is a tough challenge. Here we report new random organic framework membranes with benzimidazole and imine linkages to form hierarchical channels. Both high H<sub>2</sub>-selective and fast H<sub>2</sub...journal article 2024