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Luminescence of Ce3+ activated fluoro-apatites M5(PO4)3F (M = Ca, Sr, Ba) under VUV—UV and x-ray excitation

Zeng, Q. (author), Liang, H. (author), Zhang, G. (author), Birowosuto, M.D. (author), Tian, Z. (author), Lin, H. (author), Fu, Y. (author), Dorenbos, P. (author), Su, Q. (author)

journal article 2006

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Luminescence and site occupancy of Ce3+ in Ba2Ca(BO3)2

Lin, H. (author), Liang, H. (author), Han, B. (author), Zhong, J. (author), Su, Q. (author), Dorenbos, P. (author), Birowosuto, M.D. (author), Zhang, G. (author), Fu, Y. (author), Wu, W. (author)

journal article 2007

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Vacuum ultraviolet-ultraviolet and x-ray excited luminescence properties of Ba3Gd(BO3)3:Ce3+

Han, B. (author), Liang, H. (author), Lin, H. (author), Zhong, J. (author), Su, Q. (author), Dorenbos, P. (author), Birowosuto, M.D. (author), Zhang, G. (author), Fu, Y. (author)

The phosphors Ba3Gd(BO3)3:Ce3+ were prepared by a solid-state reaction technique at high temperature. The vacuum ultraviolet-ultraviolet and visible spectroscopic properties of the phosphors together with decay time curves are investigated and discussed. The spectroscopic properties are explained by occupancy of Ce3+ at two different Gd sites in...

journal article 2007

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Challenges in modeling ice floods on the Ningxia-Inner Mongolia reach of the Yellow River, China

Fu, C. (author), Popescu, I. (author), Wang, C. (author), Mynett, A.E. (author), Zhang, F. (author)

During winter the Yellow River in China is frequently subjected to ice flood disasters. Possible dike-breaking due to ice floods poses a serious threat to the part of the region located along the river, in particular the Ning-Meng reach (including Ningxia Hui and the Inner Mongolia Autonomous Region). Due to its special geographical location and...

journal article 2013

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Challenges in modelling river flow and ice regime on the Ningxia–Inner Mongolia reach of the Yellow River, China

Fu, C. (author), Popescu, I. (author), Wang, C. (author), Mynett, A.E. (author), Zhang, F. (author)

During winter the Yellow River in China is frequently subjected to ice flood disasters. Possible dike breaking due to ice floods poses a serious threat to the part of the region located along the river, in particular the Ning–Meng reach (including Ningxia Hui and the Inner Mongolia autonomous regions). Due to its special geographical location...

journal article 2014

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Parametrization of aerodynamic and canopy resistances for modeling evapotranspiration of greenhouse cucumber

Yan, H. (author), Zhang, C. (author), Coenders-Gerrits, Miriam (author), Acquah, Samuel Joe (author), Zhang, Hengnian (author), Wu, Haimei (author), Zhao, Baoshan (author), Huang, Song (author), Fu, Hanwen (author)

Estimating the latent heat flux accurately is important to improve greenhouse crops irrigation schedules. Aerodynamic and canopy resistances, as two key parameters in the Bulk transfer equations, are already difficult to measure in the open field and even more in greenhouses. In this study, an experiment was conducted in a Venlo-type cucumber...

journal article 2018

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Fully controlled photonic spin in highly confined optical field

Zhang, Shuoshuo (author), Fu, Shenggui (author), Zhang, Huanian (author), Ge, Xiaolu (author), Bai, Zhidong (author), Lyu, Yudong (author), Zhao, Rui (author), Man, Z. (author)

As an intrinsic attribute of light, the spin angular momentum (SAM) of photons has aroused considerable attention because of the fascinating properties emerging from light–matter interactions. We show that a diffraction-limited focal field with a steerable photonic spin structure in three dimensions can be produced under a 4π microscopic...

journal article 2019

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Parameterization and Application of Stanghellini Model for Estimating Greenhouse Cucumber Transpiration

Yan, H. (author), Huang, Song (author), Zhang, C. (author), Coenders-Gerrits, Miriam (author), Wang, Guoqing (author), Zhang, Jianyun (author), Zhao, Baoshan (author), Acquah, Samuel Joe (author), Wu, Haimei (author), Fu, Hanwen (author)

Accurate estimation of transpiration (Tr) is important in the development of precise irrigation scheduling and to enhance water-use efficiency in agricultural production. In this study, the air temperature (Ta) and relative humidity (RH) were measured at three different heights (0.5, 1.0, and 1.8 m above the ground near the plant canopy)...

journal article 2020

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Micro-Doppler Period Estimation Based on Concentration Statistics of Ambiguity Function

Zhang, Wenpeng (author), Fu, Yaowen (author), Yin, J. (author)

Radar micro-Doppler (m-D) signature, which reflects the micromotion dynamic and structural characteristics of radar target with micromotion, has received increasing attention. Most of the existing m-D signature-extraction methods operate in the time domain or the time-frequency domain. Different from these methods, in this paper, an m-D...

journal article 2020

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Towards understanding and prediction of atmospheric corrosion of an Fe/Cu corrosion sensor via machine learning

Pei, Zibo (author), Zhang, D. (author), Zhi, Yuanjie (author), Yang, Tao (author), Jin, Lulu (author), Fu, Dongmei (author), Cheng, Xuequn (author), Terryn, H.A. (author), Mol, J.M.C. (author), Li, Xiaogang (author)

The atmospheric corrosion of carbon steel was monitored by a Fe/Cu type galvanic corrosion sensor for 34 days. Using a random forest (RF)-based machine learning approach, the impacts of relative humidity, temperature and rainfall were identified to be higher than those of airborne particles, sulfur dioxide, nitrogen dioxide, carbon monoxide...

journal article 2020

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Early dengue outbreak detection modeling based on dengue incidences in Singapore during 2012 to 2017

Chen, P. (author), Fu, Xiuju (author), Ma, Stefan (author), Xu, Hai Yan (author), Zhang, Wanbing (author), Xiao, Gaoxi (author), Siow Mong Goh, Rick (author), Xu, George (author), Ching Ng, Lee (author)

Dengue has been as an endemic with year-round presence in Singapore. In the recent years 2013, 2014, and 2016, there were several severe dengue outbreaks, posing serious threat to the public health. To proactively control and mitigate the disease spread, early warnings of dengue outbreaks, at which there are rapid and large-scale spread of...

journal article 2020

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Long-lived charge separation following pump-wavelength–dependent ultrafast charge transfer in graphene/WS₂ heterostructures

Fu, Shuai (author), du Fossé, I. (author), Jia, Xiaoyu (author), Xu, Jingyin (author), Yu, Xiaoqing (author), Zhang, Heng (author), Zheng, Wenhao (author), Krasel, Sven (author), Houtepen, A.J. (author)

Van der Waals heterostructures consisting of graphene and transition metal dichalcogenides have shown great promise for optoelectronic applications. However, an in-depth understanding of the critical processes for device operation, namely, interfacial charge transfer (CT) and recombination, has so far remained elusive. Here, we investigate...

journal article 2021

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Nonlinearity-modulated single molecule trapping and Raman scattering analysis

Zhang, Shuoshuo (author), Zhang, Yuquan (author), Fu, Yanan (author), Zhu, Z. (author), Man, Zhongsheng (author), Bu, Jing (author), Fang, Hui (author), Min, Changjun (author), Yuan, Xiaocong (author)

Single molecule detection and analysis play important roles in many current biomedical researches. The deep-nanoscale hotspots, being excited and confined in a plasmonic nanocavity, make it possible to simultaneously enhance the nonlinear light-matter interactions and molecular Raman scattering for label-free detections. Here, we...

journal article 2021

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Precipitation of supersaturated solute in H ion irradiated Fe-Au and Fe-Au-W alloys studied by positron annihilation spectroscopy

Zhang, Z. (author), Zhang, S. (author), Yao, Z. (author), Tao, X. (author), Cao, X. (author), Zhang, P. (author), Kuang, P. (author), Fu, Y. (author), van Dijk, N.H. (author), van der Zwaag, S. (author)

The effect of thermal aging of homogenized Fe-Au and Fe-Au-W alloys, irradiated at room temperature with hydrogen ions, was studied for an aging treatment at 300 °C for aging times up to 100 h. The aging behavior of the Fe-based alloys is compared to the results for pure Fe. The precipitation behavior of Au-rich and W-rich precipitates and...

journal article 2021

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Spatial-temporal potential exposure risk analytics and urban sustainability impacts related to COVID-19 mitigation: A perspective from car mobility behaviour

Jiang, Peng (author), Fu, Xiuju (author), Fan, Yee Van (author), Klemeš, Jiří Jaromír (author), Chen, P. (author), Ma, Stefan (author), Zhang, Wanbing (author)

Coronavirus disease-2019 (COVID-19) poses a significant threat to the population and urban sustainability worldwide. The surge mitigation is complicated and associates many factors, including the pandemic status, policy, socioeconomics and resident behaviours. Modelling and analytics with spatial-temporal big urban data are required to assist...

journal article 2021

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Subwavelength spinning of particles in vector cosine-Gaussian field with radial polarization

Zhao, Rui (author), Jiang, M. (author), Zhang, Shuoshuo (author), Man, Zhongsheng (author), Wang, Benyi (author), Ge, Xiaolu (author), Zhang, Wenfei (author), Zhang, Yuquan (author), Fu, Shenggui (author)

A new type of radially polarized (RP) cosine-Gaussian (CG) field is proposed. Through the analytical model, it is found that such RP CG beam exhibits completely different focusing properties from the reported RP plane waves. More importantly, a stable three-dimensional trap of Rayleigh particle accompanied by a subwavelength spin motion can...

journal article 2022

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Resilience assessment of asphalt pavement rutting under climate change

Zhang, Chao (author), Tan, Yiqiu (author), Gao, Y. (author), Fu, Yongkang (author), Li, Jilu (author), Li, Shuai (author), Zhou, Xingye (author)

The service performances of asphalt pavement, especially rutting, will be inevitably affected by climate change. However, existing studies have generally focused on the rutting depth and rutting life, and thus became insufficient for comprehensively evaluating the influence of climate change on rutting over the service life. A resilience...

journal article 2022

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Composition regulation of composite materials in laser powder bed fusion additive manufacturing

Yao, Dengzhi (author), Wang, Ju (author), Cai, Yao (author), Zhao, Tingting (author), An, Xizhong (author), Zhang, Hao (author), Fu, Haitao (author), Yang, Xiaohong (author), Zou, Qingchuan (author), Wang, L. (author)

Understanding and controlling the composition segregation during powder spreading is of key importance in the additive manufacturing (AM) of composite materials. Under this circumstance, the segregation behavior of WC/316 L composite powders during spreading in laser powder bed fusion (LPBF) AM was numerically investigated by the discrete...

journal article 2022

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Cross-category prediction of corrosion inhibitor performance based on molecular graph structures via a three-level message passing neural network model

Dai, Jiaxin (author), Fu, Dongmei (author), Song, Guangxuan (author), Ma, Lingwei (author), Guo, Xin (author), Mol, J.M.C. (author), Cole, Ivan (author), Zhang, Dawei (author)

Current experimental verification, computational modeling, and machine learning methods for predicting corrosion inhibition efficiency (IE) are limited to specific inhibitor categories with high cost and poor generalization. In this study, a cross-category corrosion inhibitor dataset is constructed and a three-level direct message passing...

journal article 2022

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Systematic decomposition of sequence determinants governing CRISPR/Cas9 specificity

Fu, Rongjie (author), He, Wei (author), Dou, Jinzhuang (author), Villarreal, Oscar D. (author), Bedford, Ella (author), Wang, Helen (author), Hou, Connie (author), Zhang, Liang (author), Depken, S.M. (author)

The specificity of CRISPR/Cas9 genome editing is largely determined by the sequences of guide RNA (gRNA) and the targeted DNA, yet the sequence-dependent rules underlying off-target effects are not fully understood. To systematically explore the sequence determinants governing CRISPR/Cas9 specificity, here we describe a dual-target system to...

journal article 2022