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Zhang, Y. (author), Liu, X. (author), Ren, S. (author), Jing, R. (author), Gard, W.F. (author), Apostolidis, P. (author), Erkens, S. (author), Scarpas, Athanasios (author)Lignin, one of the most abundant natural polymers, has been extensively studied as liquid or solid additive in bituminous binders. Despite the fact the organosolv lignin in bitumen improves the overall resistance against oxidative aging, lignin could lead to binders of high thermal cracking sensitivity. In this study, a bio-based oil is...conference paper 2021
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Li, Yuanli (author), Xiang, Pengcheng (author), You, Kairui (author), Guo, Jin (author), Liu, Z. (author), Ren, Hong (author)Mega infrastructure projects (MIPs) have become increasingly important to the realization of sustainable development in China. Sustainable development is a process of dynamic balance, and coordinating the triple bottom line (the environmental, social, and economic dimensions) will enable more sustainable development of MIPs. However, previous...journal article 2021
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Ren, Jie (author), Wang, Yuan (author), Feng, Di (author), Gong, J. (author)Large volumes of carbon dioxide (CO<sub>2</sub>) captured from carbon emission source can be stored in deep saline aquifers as a mean of mitigating climate change. The deep saline aquifers are naturally heterogeneous at multiple scales. It is important to generate representative multiscale heterogeneous fields of various hydrogeologic...journal article 2021
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Lin, Yu (author), Li, L. (author), Ren, Pan (author), Wang, Yanjun (author), Szeto, W. Y. (author)En-route congestion causes delays in air traffic networks and will become more prominent as air traffic demand will continue to increase yet airspace volume cannot grow. However, most existing studies on flight delay modeling do not consider en-route congestion explicitly. In this study, we propose a new flight delay model, Multi-layer Air...journal article 2021
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Ren, Shaoting (author), Miles, Evan S. (author), Jia, Li (author), Menenti, M. (author), Kneib, Marin (author), Buri, Pascal (author), McCarthy, Michael J. (author), Shaw, Thomas E. (author), Yang, Wei (author), Pellicciotti, Francesca (author)Glacier albedo determines the net shortwave radiation absorbed at the glacier surface and plays a crucial role in glacier energy and mass balance. Remote sensing techniques are efficient means to retrieve glacier surface albedo over large and inaccessible areas and to study its variability. However, corrections of anisotropic reflectance of...journal article 2021
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Verma, Amrit Shankar (author), Di Noi, Sandro (author), Ren, Zhengru (author), Jiang, Zhiyu (author), Teuwen, Julie J.E. (author)Leading edge erosion (LEE) repairs of wind turbine blades (WTBs) involve infield application of leading edge protection (LEP) solutions. The industry is currently aiming to use factory based LEP coatings that can applied to the WTBs before they are shipped out for installation. However, one of the main challenges related to these solutions is...journal article 2021
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Lin, P. (author), Liu, X. (author), Apostolidis, P. (author), Erkens, S. (author), Zhang, Y. (author), Ren, S. (author)Observing the microstructure of bituminous binders with an environmental scanning electron microscope (ESEM) can contribute significantly to reveal the underlying rejuvenation mechanism. In this study, three rejuvenators were selected to regenerate the aged SBS modified binders at five dosages, and their rheology was evaluated using a dynamic...journal article 2021
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Ren, S. (author), Liu, X. (author), Zhang, Y. (author), Lin, P. (author), Apostolidis, P. (author), Erkens, S. (author), Li, Mingliang (author), Xu, Jian (author)Lignin, as a major waste from biofuel and paper industries, could be utilized as a modifier to enhance the relevant performance of bitumen. However, the effects of lignin on the thermodynamics properties and molecular structure of bitumen are rarely studied. Meanwhile, the potential modification mechanism of lignin modified bitumen is still...journal article 2021
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Verma, Amrit Shankar (author), Jiang, Zhiyu (author), Ren, Zhengru (author), Hu, Weifei (author), Teuwen, Julie J.E. (author)The presence of rain-induced leading edge erosion of wind turbine blades (WTBs) necessitates the development of erosion models. One of the essential parameters for erosion modeling is the relative impact velocity between rain droplets and the rotating blade. Based on this parameter, the erosion damage rate of a WTB is calculated to estimate...journal article 2021
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Verma, Amrit Shankar (author), Jiang, Zhiyu (author), Ren, Zhengru (author), Caboni, Marco (author), Verhoef, Hans (author), van der Mijle-Meijer, Harald (author), Castro, Saullo G.P. (author), Teuwen, Julie J.E. (author)Rain-induced leading-edge erosion (LEE) of wind turbine blades (WTBs) is associated with high repair and maintenance costs. The effects of LEE can be triggered in less than 1 to 2 years for some wind turbine sites, whereas it may take several years for others. In addition, the growth of erosion may also differ for different blades and...journal article 2021
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Ren, Zhengru (author), Verma, Amrit Shankar (author), Ataei, Behfar (author), Halse, Karl Henning (author), Hildre, Hans Petter (author)Being one of the most commonly used offshore operations, offshore lifting operations become increasingly challenging due to the gradually growing size and weight of payloads. The research on automatic control in lifting operations, e.g., anti-swing control and heave compensation, only considers simple-shaped payloads, such as lumped-mass...journal article 2021
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Ren, S. (author), Liu, X. (author), Lin, P. (author), Erkens, S. (author), Xiao, Yue (author)To further explore the long-term aging behaviors of bitumen from the multiscale perspectives, the experimental characterization and molecular dynamics (MD) simulation methods were performed. Series of chemical properties for the virgin and various aged bitumen were evaluated using the TCL-FID, ATR-FTIR, Elemental analysis and GPC tests. The...journal article 2021
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Ren, S. (author), Liu, X. (author), Xu, Jian (author), Lin, P. (author)Porous asphalt pavement is widely used due to its adequate water permeability, noise reduction and skid resistance. The study aims at exploring the potential of using the crumb rubber/styrene–butadienestyrene (CR/SBS) modified bitumen as high-viscosity binder for porous asphalt mixture, and investigating the effect of swelling and degradation...journal article 2021
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Ren, Wuwei (author), Jiang, Jingjing (author), Di Costanzo Mata, Aldo (author), Kalyanov, Alexander (author), Ripoll, Jorge (author), Lindner, S.A. (author), Charbon-Iwasaki-Charbon, E. (author), Zhang, C. (author), Rudin, Markus (author), Wolf, Martin (author)Fluorescence molecular tomography (FMT) emerges as a powerful non-invasive imaging tool with the ability to resolve fluorescence signals from sources located deep in living tissues. Yet, the accuracy of FMT reconstruction depends on the deviation of the assumed optical properties from the actual values. In this work, we improved the accuracy...journal article 2020
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Zhang, Gangqiang (author), Zheng, Ganlin (author), Ren, Tianhui (author), Zeng, Xiangqiong (author), van der Heide, E. (author)In order to reduce the damage to tissue and fill the interstices between fibers, multifilament sutures are frequently treated with certain coating materials. The objective of this study was to create and characterize dopamine hydrochloride (DA) and carboxymethyl chitosan (CMCS) coatings on surgical sutures and investigate their effects on the...journal article 2020
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Ren, D. (author), Houben, L.J.M. (author)Unlike the notched specimens for conventional concrete fracture tests, this paper introduces a deformation-controlled uniaxial tensile test on an un-notched specimen. The surface of the dog bone-shaped specimen is a second order parabolic curve, and the gradual change in the specimen shape does not lead to extreme stress concentrations....journal article 2020
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Ren, Shaoting (author), Menenti, M. (author), Jia, Li (author), Zhang, Jing (author), Zhang, Jingxiao (author), Li, Xin (author)Mountain glaciers are excellent indicators of climate change and have an important role in the terrestrial water cycle and food security in many parts of the world. Glaciers are the major water source of rivers and lakes in the Nyainqentanglha Mountains (NM) region, where the glacier area has the second largest extent on the Tibetan Plateau....journal article 2020
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Ren, S. (author), Liu, X. (author), Li, Mingliang (author), Fan, Weiyu (author), Xu, Jian (author), Erkens, S. (author)It is well known that crumb rubber (CR) and styrene–butadienestyrene (SBS) composite modified asphalt has better rheological and engineering performance. However, it always presents very poor compatibility and storage stability. Meanwhile, Trans-polyoctenamer (TOR) can effectively improve the compatibility and thermal stability of rubber...journal article 2020
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Ren, S. (author), Liu, X. (author), Wang, H. (author), Fan, Weiyu (author), Erkens, S. (author)Recycling technology is widely used in the asphalt road construction due to its environmental and economic effects. Many efforts have focused on the performance restoration of aged base asphalt by adding light oil, but the possibility of recycling the aged asphalt using low-viscosity asphalt and polymers has been few explored. Therefore, the...journal article 2020
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Verma, Amrit Shankar (author), Jiang, Zhiyu (author), Ren, Zhengru (author), Gao, Zhen (author), Vedvik, Nils Petter (author)Most wind turbine blades are assembled piece-by-piece onto the hub of a monopile-type offshore wind turbine using jack-up crane vessels. Despite the stable foundation of the lifting cranes, the mating process exhibits substantial relative responses amidst blade root and hub. These relative motions are combined effects of wave-induced monopile...journal article 2020