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A data-driven high spatial resolution model of biomass accumulation and crop yield: Application to a fragmented desert-oasis agroecosystem

Chen, Qiting (author), Jia, Li (author), Menenti, M. (author), Hu, Guangcheng (author), Wang, Kun (author), Yi, Zhiwei (author), Zhou, Jie (author), Peng, Fei (author), Ma, Shaoxiu (author)

Information on crop yield is important for food security, in particular under the conditions of climate change and growing population worldwide. We developed a new fully distributed, high spatial resolution, model of biomass accumulation and crop yield applicable to a highly heterogeneous desert-oasis agroecosystem. The bulk of required input...

journal article 2023

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An organ-on-chip device with integrated charge sensors and recording microelectrodes

Aydogmus, H. (author), Hu, M. (author), Ivancevic, Lovro (author), Frimat, Jean Philippe (author), van den Maagdenberg, Arn M.J.M. (author), Sarro, Pasqualina M (author), Mastrangeli, Massimo (author)

Continuous monitoring of tissue microphysiology is a key enabling feature of the organ-on-chip (OoC) approach for in vitro drug screening and disease modeling. Integrated sensing units are particularly convenient for microenvironmental monitoring. However, sensitive in vitro and real-time measurements are challenging due to the inherently...

journal article 2023

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Bio-inspired combinable self-powered soft device operating during the disintegration and reconstruction for next-generation artificial electric organs

Chen, Yuanyuan (author), Dai, Hanqing (author), Hu, Zhe (author), Wei, Jinxin (author), Zhou, Wenjie (author), Duan, Zhongtao (author), Cui, Zhongjie (author), Wei, Wei (author), Zhang, Kouchi (author)

Hydrogel materials have biocompatibility, flexibility, transparency, self-healing ability, adhesion with various substrates, anti-freeze ability, and high-temperature resistance. However, the existing hydrogel devices cannot continue to operate in the case of damage, and they cannot work during the repair period, which brings great challenges...

journal article 2023

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Air infiltration and related building energy consumption: A case study of office buildings in Changsha, China

Hu, Jie (author), Liu, Zhengxuan (author), Ma, Guochuan (author), Zhang, Guoqiang (author), Ai, Zhengtao (author)

Past studies reveal that air infiltration through the building envelope and its impact on the indoor environment and energy consumption are significantly influenced by climate characteristics. However, little relevant information is available for buildings in southern China, where the building design traditionally follows a philosophy of...

journal article 2023

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Nanoindentation characterization of sintered porous Cu nanoparticles used in power electronics packaging – A molecular dynamic simulation study

Hu, D. (author), Li, Z. (author), Fan, J. (author), Zhang, Kouchi (author)

As a critical part of speeding up industrial electrification, power electronics, and its packaging technology are undergoing rapid development. Cu nanoparticle sintering technology has therefore received extensive attention for its excellent performance in the die-attachment layer, where the mechanical properties are essential to be known for...

conference paper 2023

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Inference algorithms for the useful life of safety instrumented systems under small failure sample data

Mao, Qi (author), Wang, Haiqing (author), Yang, M. (author), Hu, Jason (author)

Safety instrumented systems(SIS) have been widely used in petroleum and chemical plants to detect and respond to dangerous events and prevent them from developing into accidents. The in-service time of SIS does not exceed its useful life is one of the crucial assumptions of IEC functional safety standards. The testing method recommended in the...

journal article 2023

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Transient thermal measurement on nano-metallic sintered die-attach joints using a thermal test chip

Sattari, R. (author), Hu, D. (author), Liu, X. (author), van Zeijl, H.W. (author), Vollebregt, S. (author), Zhang, Kouchi (author)

The rapid development of power electronics has challenged the thermal integrity of semiconductor packaging. Further developments in this domain can be supported significantly by utilizing fast and flexible thermal characteristic evaluation. This study employs the transient dual interface method (TDIM) to characterize and compare the thermal...

journal article 2023

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Comprehensive study on the degradation progress of crumb tire rubber during the preparation of terminal blended rubberized asphalt binder

Meng, Yuanyuan (author), Ye, Xiangqian (author), He, Fuqiong (author), Chen, Zhipeng (author), Hu, Chichun (author), Lin, P. (author)

Terminal blended rubberized asphalt binder (TB) technology, which blends crumb tire rubber (CR) with asphalt under high interaction conditions, offers a promising waste tire recycling solution for pavement construction. By precisely controlling the degradation progress of CR, it is possible to prepare TB with specific property requirements....

journal article 2023

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Image restoration algorithm for terahertz FMCW radar imaging

Hu, Weidong (author), Xu, Zhihao (author), Jiang, Huanyu (author), Liu, Qingguo (author), Yao, Zhiyu (author), Tan, Zhen (author), Ligthart, L.P. (author)

The terahertz frequency modulation continuous-wave (THz FMCW) imaging technology has been widely used in non-destructive testing applications. However, THz FMCW real-aperture radar usually has a small depth of field and poor lateral resolution, thus restricting the high-precision imaging application. This paper proposes a 150-220 GHz FMCW...

journal article 2023

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High temperature viscoplastic deformation behavior of sintered nanocopper paste used in power electronics packaging: Insights from constitutive and multi-scale modelling

Hu, D. (author), Qian, Cheng (author), Liu, X. (author), Du, L. (author), Sun, Zhongchao (author), Fan, X. (author), Zhang, Kouchi (author), Fan, J. (author)

As a promising technology for high-power and high-temperature power electronics packaging, nanocopper (nanoCu) paste sintering has recently received increasing attention as a die-attachment. The high-temperature deformation of sintered nanoCu paste and its underlying mechanisms challenge the reliability of high-power electronics packaging. In...

journal article 2023

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Catalytic Oxidative Coupling of Methane: Heterogeneous or Homogeneous Reaction?

Hu, L. (author), Pinto, D. (author), Urakawa, A. (author)

Direct valorization of methane via oxidative coupling of methane (OCM) is an encouraging alternative to conventional oil-based processes for the production of light hydrocarbons (ethane and ethylene). Abundant, inexpensive simple oxides such as MgO and La₂O₃ possess the ability to selectively activate methane. However,...

journal article 2023

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Slight Multielement Doping-Induced Structural Order-Disorder Transition for High-Performance Layered Na-Ion Oxide Cathodes

Guo, Hao (author), Zhao, C. (author), Gao, Jianxiang (author), Yang, Wenyun (author), Hu, Xufeng (author), Ma, Xiaobai (author), Jiao, Xuesheng (author), Yang, Jinbo (author), Sun, Kai (author), Chen, Dongfeng (author)

To realize concurrently the high-energy density and excellent cycling stability, maximum utilization of redox couple, minimization of detrimental phase transition, and structural degradation of O3-type layered oxide cathodes are critical for developing Na-ion batteries. Ni²⁺/Ni⁴⁺ redox couple showing multielectron...

journal article 2023

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Spatial Resolution Matching of Microwave Radiometer Measurements Using Iterative Deconvolution with Close Loop Priors (ICLP)

Yao, Zhiyu (author), Hu, Weidong (author), Feng, Zhiyan (author), Zhang, Wenlong (author), Liu, Yang (author), Xu, Zhihao (author), Ligthart, L.P. (author)

Passive multifrequency microwave sensors frequently struggle with difficulties of nonuniform spatial resolution among multiple channels. The raw measurements in the land-sea transition zone are seriously contaminated. Conventional analytical deconvolution techniques suffer from the tradeoff between spatial resolution enhancement and noise...

journal article 2023

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Late-stage diversion risk assessment for high dams considering early initial impoundment: a case study of Lianghekou Station, China

Liu, Lian (author), Bricker, J.D. (author), Hu, Chao (author)

Early initial impoundment can generate additional revenue but bring more flood risk in late-stage construction diversion. In view of the possible flood risk and catastrophic consequences caused by high dam failures induced by early impoundment, a comprehensive assessment is proposed. Taking the Lianghekou high rockfill dam on the Yalong River...

journal article 2023

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Roles of waste carbon fibers on the efficiency of multiple induction heating healing behavior in asphalt mixture for sustainable infrastructure

Ye, Xiangqian (author), Xiao, Zhenyong (author), He, Chuang (author), Li, Wenyu (author), Lin, P. (author), Meng, Yuanyuan (author), Hu, Chichun (author)

This study systematically investigated the potential of waste carbon fibers (WCFs) as a sustainable solution in enhancing the multiple induction heating healing of asphalt mixture, thereby tackling two major concerns: the environmental impact of WCFs and the durability of asphalt pavement. Firstly, four groups of asphalt binder samples with...

journal article 2023

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Release behavior of soluble salts in MSWI bottom ash used as road basement materials under continuous rainfall conditions

Zhao, Lingqin (author), Zhang, Dongming (author), Hu, Yanjun (author), Guo, Qianqian (author), Jiao, Long (author), Zhou, Nan (author), Di Maio, F. (author)

The bottom ash is increasingly used as a substitute aggregate material in road construction in China, and road salting is the major salt source in groundwater. Continuous rainfall releases soluble salts from the bottom ash subgrade into the surrounding soil and groundwater, resulting in potential hazards. Different methods were employed to...

journal article 2023

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Enabling complete conversion of CH₄ and CO₂ in dynamic coke-mediated dry reforming (DC-DRM) on Ni catalysts

Pinto, D. (author), Hu, L. (author), Urakawa, A. (author)

Dynamic coke-mediated dry reforming of methane (DC-DRM) is an unsteady-state strategy to overcome the limitations of co-feed operation, including the fast deactivation of the catalysts and the loss of valuable H₂ in the reverse water gas-shift reaction. This paper proves the feasibility of DC-DRM on Ni-based catalytic systems,...

journal article 2023

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Copper Nanoparticle Sintering Enabled Hermetic Packaging With Fine Sealing Ring for MEMS Application

Hu, D. (author), Shah, M.B. (author), Fan, J. (author), Vollebregt, S. (author), Zhang, Kouchi (author)

Driving by the increased demand for hermetic packaging in the more than Moore (MtM) roadmap, a Cu nanoparticle sintering-enabled hermetic sealing solution was developed with a small-size sealing ring. The developed technology simplifies microfabrication and requires less surface roughness using a sinterable Cu nanoparticle paste. A 50μm size...

journal article 2023

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AR-Assisted Assembly in Self-Build Construction with Discrete Components

Li, Yangzhi (author), Hu, Yusong (author), Tan, T. (author), Yu, Boyuan (author), Li, Jingwei (author), Fingrut, Adam (author)

The prevailing issue of low housing supply is caused in part by a lack of skilled construction workers. If unskilled residents were adequately equipped, they could potentially address this issue, expanding and adapting their homes without professional builders and designers. This research proposes the use of discrete components to build on...

conference paper 2023

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Oxidative coupling of methane under microwave: core-shell catalysts for selective C₂ production and homogeneous temperature control

Kaneda, R. (author), Palomo Jiménez, J. (author), Hu, L. (author), Urakawa, A. (author)

The oxidative coupling of methane (OCM) was investigated using a catalyst with a core@shell structure or a physical mixture comprised of MgO and SiC or Fe₃O₄, which was thermally activated via two different heating methods, namely, conventional resistive heating and microwave heating. The use of microwave radiation...

journal article 2023