- document
-
Liu, Minne (author), Li, Wenyu (author), Chen, Wei (author), Ibrahim, Mesfin S. (author), Xiong, Jingkang (author), Zhang, Kouchi (author), Fan, Jiajie (author)During the operation of an LED array, its thermal and optical performances are always not equal to the superposition of the individual LED's characteristics because of a significant thermal coupling effect between the arrays. Based on this, this paper proposes an electrical–photo-thermal model, with considering both junction temperature and...journal article 2024
- document
-
Zhou, J. (author), Menenti, M. (author), Jia, Li (author), Gao, Bo (author), Zhao, Feng (author), Cui, Yilin (author), Xiong, Xuqian (author), Liu, Xuan (author), Li, Dengchao (author)Spatiotemporal residual noise in terrestrial earth observation products, often caused by unfavorable atmospheric conditions, impedes their broad applications. Most users prefer to use gap-filled remote sensing products with time series reconstruction (TSR) algorithms. Applying currently available implementations of TSR to large-volume...journal article 2023
- document
-
Schreiter, Lucas (author), Stolle, Claudia (author), Rauberg, Jan (author), Kervalishvili, Guram (author), van den IJssel, J.A.A. (author), Arnold, Daniel (author), Xiong, Chao (author), Callegare, Andyara (author)Satellites in Low Earth Orbit (LEO) are essential for sounding the topside ionosphere. In this work, we present and validate a data set of Total Electron Content (TEC) and in situ electron density observations from the Gravity Recovery And Climate Experiment (GRACE) and GRACE-Follow-On missions as well as a TEC data set from the CHAllenging...journal article 2023
- document
-
Tong, Liang-yu (author), Xiong, Qing Xiang (author), Zhang, Zhidong (author), Chen, Xiangsheng (author), Ye, G. (author), Liu, Qing feng (author)This paper develops a novel lattice diffusive model to quantitatively study the chloride diffusion coefficient in unsaturated cementitious materials, in which the pore voxels are redistributed to make a better representation of a real microstructure of hardened cement paste. Considering the hierarchical microstructure and different drying...journal article 2023
- document
-
Shuang, F.S. (author), Ji, Rigelesaiyin (author), Xiong, Liming (author), Gao, Wei (author)Periodic boundary condition along a dislocation line is commonly used in computing activation barriers or formation energies of kink pair of screw dislocation in BCC metals. Although the effect of periodic image interactions on the computation results is obvious, there had been no comprehensive analysis on such effect. In this work, we...journal article 2023
- document
-
Ye, Hanting (author), Xiong, Jie (author), Wang, Q. (author)While radio communication still dominates in 5G, light and radios are expected to complement each other in the coming 6G networks. Visible Light Communication (VLC) is therefore attracting a tremendous amount of attention from both academia and industry. Recent studies showed that the front camera of pervasive smartphones is an ideal...conference paper 2023
- document
-
Cui, Minhao (author), Wang, Q. (author), Xiong, Jie (author)Visible Light Communication (VLC) is widely considered a promising technology for the coming 6G networks. Recent studies show that a VLC transmitter not only emits visible light signals but also leaks RF signals during the transmission. In this work, we devote effort to harvesting the free leaked RF energy from VLC transmissions. We observe that...conference paper 2023
- document
-
Wang, Lili (author), Lin, Ye (author), Yao, Ting (author), Xiong, Hu (author), Liang, K. (author)Existing proxy re-encryption (PRE) schemes to secure cloud data sharing raise challenges such as supporting the heterogeneous system efficiently and achieving the unbounded feature. To address this problem, we proposed a fast and secure unbounded cross-domain proxy re-encryption scheme, named FABRIC, which enables the delegator to authorize...journal article 2023
- document
-
Meng, Z. (author), Zhang, Yufei (author), Chen, Wei kang (author), Fu, Chuan qing (author), Xiong, Qing Xiang (author), Zhang, Cheng lin (author), Liu, Qing feng (author)Understanding the transport mechanisms within unsaturated porous media is essential to the durability problems associated with cement-based materials. However, the involvement of multi-ions electrochemical coupling effect, especially under unsaturated condition makes the transport mechanisms even more complex. In this study, the moisture and...journal article 2023
- document
-
Mir, Muhammad Sarmad (author), Cui, Minhao (author), Guzman, Borja Genoves (author), Wang, Q. (author), Xiong, Jie (author), Giustiniano, Domenico (author)Radio-Frequency (RF) backscatter has emerged as a low-power communication technique. Backscatter systems either rely on active signal generators (spectrum efficient, but dedicated infrastructure) or existing ambient wireless transmissions (existing infrastructure, but spectrum inefficient). In this paper, we aim to make RF backscatter...conference paper 2023
- document
-
Lyu, Tianshuai (author), Dorenbos, P. (author), Xiong, Puxian (author), Wei, Zhanhua (author)Developing X-ray or UV-light charged storage and mechanoluminescence (ML) materials with high charge carrier storage capacity is challenging. Such materials have promising utilization in developing new applications, for example, in flexible X-ray imaging, stress sensing, or non-real-time recording. Herein, the study reports on such materials;...journal article 2022
- document
-
Zhou, J. (author), Liu, Xuan (author), Xiong, Xuqian (author), Jia, Li (author), Lu, Jing (author), Cui, Yilin (author)Satellite-based Earth Observation systems archived a variety of vegetation products during the last 50 years, which can reveal regional to global ecosystem dynamics across diverse spatiotemporal scales. The anomaly metrics such as Vegetation Condition Index (VCI) defined by comparing the current vegetation growth condition to historical...conference paper 2022
- document
-
Xiang, Ting (author), Meng, Xiaoliang (author), Wang, Xinshuang (author), Xiong, Jing (author), Xu, Z. (author)Rapid industrialization and urbanization have accelerated land-use changes in mountainous areas, with dramatic impacts on ecosystem health. In particular, the Qinling-Daba Mountains, as China’s central water tower, ecological green lung, and biological gene bank, have rich resource endowments and extremely high ecological value and are an...journal article 2022
- document
-
Jia, Jinhao (author), Li, Cong (author), Chen, Qiang (author), Bai, Shuxin (author), Chang, J. (author), Xiong, Degan (author), Gao, Mingqi (author), Li, Shun (author), Xiao, Jin (author)3D C<sub>f</sub>/SiC–Al composites were achieved through the pressure infiltration of liquid Al–Si alloy into porous 3D C<sub>f</sub>/SiC preform, which was produced by different cycles of precursor infiltration and pyrolysis. The effect of silicon carbide volume fraction on the microstructure, anisotropic mechanical response, and...journal article 2022
- document
-
Wei Chen, Chen (author), Cao, Dunhua (author), Dong, Yongjun (author), Xiong, Jingkang (author), Trofimov, Yuri (author), Lishik, Sergey (author), Zhang, Kouchi (author), Fan, J. (author)Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> (YAG:Ce<sup>3+</sup>) single crystal phosphor (SCP) exhibits high internal quantum efficiency (IQE) and excellent thermal conductivity and stability. Such properties are promising in high-power laser-excited white lighting applications. However, YAG:Ce<sup>3+</sup> SCP usually shows...journal article 2022
- document
-
Meng, M. (author), Dabrowski, M.M. (author), Xiong, L. (author), Stead, D. (author)Given the greater risk of flooding in cities due to climate change, spatial planning systems are increasingly expected to contribute to flood resilience. However, incorporating expanded adaption measures in conventional planning practices remains a major challenge due to institutional barriers. Based on the theories of historical...journal article 2022
- document
-
Verhagen, J. (author), Xiong, Xiaobin (author), Ames, A. D. (author), Seth, A. (author)Humans are able to negotiate downstep behaviors-both planned and unplanned-with remarkable agility and ease. The goal of this paper is to systematically study the translation of this human behavior to bipedal walking robots, even if the morphology is inherently different. Concretely, we begin with human data wherein planned and unplanned...conference paper 2022
- document
-
Manoonpong, Poramate (author), Patanè, Luca (author), Xiong, Xiaofeng (author), Brodoline, Ilya (author), Dupeyroux, J.J.G. (author), Viollet, Stéphane (author), Arena, Paolo (author), Serres, Julien R. (author)This review article aims to address common research questions in hexapod robotics. How can we build intelligent autonomous hexapod robots that can exploit their biomechanics, morphology, and computational systems, to achieve autonomy, adaptability, and energy efficiency comparable to small living creatures, such as insects? Are insects good...review 2021
- document
-
Comparison of Thermospheric Winds Measured by GOCE and Ground-Based FPIs at Low and Middle LatitudesJiang, Guoying (author), Xiong, Chao (author), Stolle, Claudia (author), Xu, Jiyao (author), Yuan, Wei (author), Makela, Jonathan J. (author), Harding, Brian J. (author), Kerr, Robert B. (author), March, G. (author), Siemes, C. (author)The re-estimates of thermospheric winds from the Gravity field and steady-state Ocean Circulation Explorer (GOCE) accelerometer measurements were released in April 2019. In this study, we compared the new-released GOCE crosswind (cross-track wind) data with the horizontal winds measured by four Fabry-Perot interferometers (FPIs) located at...journal article 2021
- document
-
Xiong, L. (author)The research aims to provide an understanding of an urbanizing delta in which different scales, times, and domains are related to each other; and to examine how this understanding can be used in a planning and design process in a rapidly urbanizing delta. A mapping method is developed according to the key notions in the understanding of urban...doctoral thesis 2020