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Influential Node Detection on Graph on Event Sequence

Lu, Zehao (author), Wang, Shihan (author), Ren, Xiao Long (author), Costas, Rodrigo (author), Metze, T.A.P. (author)

Numerous research efforts have centered on identifying the most influential players in networked social systems. This problem is immensely crucial in the research of complex networks. Most existing techniques either model social dynamics on static networks only and ignore the underlying time-serial nature or model the social interactions as...

conference paper 2024

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An integrated approach for efficient biomethane production from solid bio-wastes in a compact system

Wang, H. (author), Tao, Y. (author), Temudo, M. (author), Schooneveld, M. (author), Bijl, H. (author), Ren, N. (author), Wolf, M. (author), Heine, C. (author), Foerster, A. (author), Pelenc, V. (author), Kloek, J. (author), Van Lier, J.B. (author), De Kreuk, M.K. (author)

Background Solid bio-wastes (or organic residues) are worldwide produced in high amount and increasingly considered bioenergy containers rather than waste products. A complete bioprocess from recalcitrant solid wastes to methane (SW2M) via anaerobic digestion (AD) is believed to be a sustainable way to utilize solid bio-wastes. However, the...

journal article 2015

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A two-time scale control law based on singular perturbations used in rudder roll stabilization of ships

Ren, Ru-Yi (author), Zou, Zao-Jian (author), Wang, Xue-Gang (author)

journal article 2014

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Sensitivity analysis and parametric identification for ship manoeuvring in 4 degrees of freedom

Wang, X-G (author), Zou, Z-J. (author), Xu, F. (author), Ren, R.-Y. (author)

journal article 2014

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A Weekly Diary Study on Playful Study Design, Study Engagement, and Goal Attainment: The Role of Proactive Personality

Wang, Huatian (author), Ren, Yue (author), Liu, W. (author)

Students’ learning processes are heavily impeded by the COVID-19 pandemic. Students are experiencing more online learning environment and less face-to-face idea exchange, which may make them feel exhausted and demotivated. Using self-determination and proactivity theories, we propose and examine whether playful study design (PSD)—a proactive...

journal article 2022

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From aircraft tracking data to network delay model: A data-driven approach considering en-route congestion

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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CO₂ migration and distribution in multiscale-heterogeneous deep saline aquifers

Ren, Jie (author), Wang, Yuan (author), Feng, Di (author), Gong, J. (author)

Large volumes of carbon dioxide (CO₂) 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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On the magnetic nanoparticle injection strategy for hyperthermia treatment

Jiang, Qian (author), Ren, Feng (author), Wang, Chenglei (author), Wang, Zhaokun (author), Kefayati, Gholamreza (author), Kenjeres, S. (author), Vafai, Kambiz (author), Liu, Yang (author), Tang, Hui (author)

We developed a dedicated computational framework by coupling the lattice-Boltzmann-method (LBM) modeling and the particle-swarm-optimization (PSO) algorithm to search optimal strategies of magnetic nanoparticle (MNP) injection for hyperthermia-based cancer treatment. Two simplified tumor models were considered: a circular model representing...

journal article 2022

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Gravity center change of carbon emissions in Chinese residential building sector: Differences between urban and rural area

Wang, Jiebing (author), You, K. (author), Qi, Lingling (author), Ren, Hong (author)

In China, dynamic spatial–temporal evolution and urban–rural gap in carbon emissions of residential building sector are crucial for understanding the current state, which is faced with great challenges related to emission mitigation. To overcome the challenge, this study employed the gravity center model to explore spatial–temporal evolution...

journal article 2022

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In vivo non-invasive confocal fluorescence imaging beyond 1,700 nm using superconducting nanowire single-photon detectors

Wang, Feifei (author), Ren, Fuqiang (author), Ma, Zhuoran (author), Qu, Liangqiong (author), Gourgues, Ronan (author), Esmaeil Zadeh, I.Z. (author), Los, Johannes W.N. (author), Qin-Dregely, Y. (author), Dai, Hongjie (author)

Light scattering by biological tissues sets a limit to the penetration depth of high-resolution optical microscopy imaging of live mammals in vivo. An effective approach to reduce light scattering and increase imaging depth is to extend the excitation and emission wavelengths to the second near-infrared window (NIR-II) at >1,000 nm, also...

journal article 2022

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Numerical study of a turbulent co-axial non-premixed flame for methanol hydrothermal combustion: Comparison of the EDC and FGM models

Ren, Mengmeng (author), Wang, Shuzhong (author), Romero-Anton, N. (author), Zhao, Junxue (author), Zou, Chong (author), Roekaerts, D.J.E.M. (author)

Eddy dissipation concept (EDC) model and flamelet generated manifolds (FGM) model are developed separately to study the temperature profiles and extinction limits of non-premixed hydrothermal flames. Predictions by the two models are evaluated comparatively by experimental data in literatures. FGM model shows relatively better prediction of...

journal article 2021

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Identification of driving factors for green building development in China

Wang, Xia (author), Ren, Hong (author), Cai, Weiguang (author), Liu, Y. (author), Luo, Lizi (author)

Green building (GB) has been actively promoted in many countries, but it has not become the mainstream in Chinese construction industry due to various reasons. This paper aims to investigate the major driving factors for the development of GB with reference of the Chinese construction market. Twenty-one factors influencing the development of...

journal article 2016

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Life cycle assessment in wastewater treatment:: Influence of site-oriented normalization factors, life cycle impact assessment methods, and weighting methods

Bai, Shunwen (author), Wang, Xiuheng (author), Zhang, X. (author), Zhao, Xinyue (author), Ren, Nanqi (author)

This present study aims to analyze the differences in results of different site-directional life cycle assessment<br/>(LCA) methods applied in the field of wastewater treatment. Site-generic methods were employed and<br/>compared with China-specific methods on a full-scale wastewater treatment case. A set of Chinese<br/>normalized factors were...

journal article 2017

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Wave Breaking Induced by Opposing Currents in Submerged Vegetation Canopies

Hu, Z. (author), Lian, S. (author), Zitman, T.J. (author), Wang, H. (author), He, Z. (author), Wei, H. (author), Ren, L. (author), Uijttewaal, W.S.J. (author), Suzuki, T. (author)

Wave height attenuation in vegetation canopies is often all attributed to the drag force exerted by vegetation, whereas other potential dissipation process is often neglected. Previous studies without vegetation have found that opposing currents can induce wave breaking and greatly increase dissipation. It is not clear if similar process may...

journal article 2022

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Evolving wastewater infrastructure paradigm to enhance harmony with nature

Wang, Xu (author), Daigger, Glen (author), Lee, Duu Jong (author), Liu, Junxin (author), Ren, Nan Qi (author), Qu, Jiuhui (author), Liu, G. (author), Butler, David (author)

Restoring and improving harmony between human activities and nature are essential to human well-being and survival. The role of wastewater infrastructure is evolving toward resource recovery to address this challenge. Yet, existing design approaches for wastewater systems focus merely on technological aspects of these systems. If system...

journal article 2018

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The continuous swelling-degradation behaviors and chemo-rheological properties of waste crumb rubber modified bitumen considering the effect of rubber size

Ren, S. (author), Liu, X. (author), Lin, P. (author), Wang, H. (author), Fan, W. (author), Erkens, S. (author)

The chemo-rheological properties of crumb rubber modified bitumen are always unstable due to the mutable and uncontrollable swelling-degradation degree of crumb rubber in bitumen matrix. The study aimed at exploring the continuous swelling and degradation behaviors of crumb rubber modified bitumen (CRMB) considering the influence of rubber size...

journal article 2021

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Effect of High Content of Waste Tire Rubber and Sulfur on the Aging Behavior of Bitumen

Wang, Sheng (author), Huang, Weidong (author), Liu, X. (author), Lin, P. (author), Ren, S. (author), Li, Yi (author)

High content rubber modified bitumen (HCRMB) prepared from the high content of waste tire rubber and bitumen has good performance while allowing greater use of the waste tires. However, HCRMB is subject to aging during use, which can affect its performance. The purpose of this paper was to investigate the effect of high content of waste tire...

journal article 2022

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Mechanical Framework for Geopolymer Gels Construction: An Optimized LSTM Technique to Predict Compressive Strength of Fly Ash-Based Geopolymer Gels Concrete

Shi, Xuyang (author), Chen, Shuzhao (author), Wang, Qiang (author), Lu, Yijun (author), Ren, S. (author), Huang, Jiandong (author)

As an environmentally responsible alternative to conventional concrete, geopolymer concrete recycles previously used resources to prepare the cementitious component of the product. The challenging issue with employing geopolymer concrete in the building business is the absence of a standard mix design. According to the chemical composition of...

journal article 2024

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Effect of Bio-oil on Rheology and Chemistry of Organosolv Lignin–Modified Bitumen

Zhang, Y. (author), Liu, X. (author), Ren, S. (author), Jing, R. (author), Lin, P. (author), Apostolidis, P. (author), Erkens, S. (author), Wang, Xuancang (author), Scarpas, Athanasios (author)

Lignin, one of the most abundant natural polymers, has been extensively studied as an additive in bituminous binders. Even though the lignin improves the overall resistance against oxidative aging of bitumen, it could lead to high thermal cracking sensitivity. In this study, a bio-oil (i.e., rapeseed oil) is implemented in lignin-modified...

journal article 2022

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Towards a Reliable Design of Geopolymer Concrete for Green Landscapes: A Comparative Study of Tree-Based and Regression-Based Models

Wang, Ranran (author), Zhang, Jun (author), Lu, Yijun (author), Ren, S. (author), Huang, Jiandong (author)

The design of geopolymer concrete must meet more stringent requirements for the landscape, so understanding and designing geopolymer concrete with a higher compressive strength challenging. In the performance prediction of geopolymer concrete compressive strength, machine learning models have the advantage of being more accurate and faster....

journal article 2024