Hongqing Zhu, M. Liu, Huazhong Shu, Hengliang Zhang et al.
Discrete orthogonal moments such as Tchebichef moments and Krawtchouk moments are more powerful in image representation than traditional continuous orthogonal moments. However, less work has been done for the summarisation of these discrete orthogonal moments. This study proposes two general forms w...
Ting Xia, Hongqing Zhu, Huazhong Shu, Pascal Haigron et al.
A new set, to our knowledge, of orthogonal moment functions for describing images is proposed. It is based on the generalized pseudo-Zernike polynomials that are orthogonal on the unit circle. The generalized pseudo-Zernike polynomials are scaled to ensure numerical stability, and some properties ar...
Umeed Ali, Muhammad Shaaban, Saqib Bashir, Qingling Fu et al.
Metals that contaminate soil is one of the major problems seriously affecting sustainable agriculture worldwide. Nickel (Ni) toxicity to agricultural crops is a global problem. Mobility of heavy metals present in contaminated soil can be reduced by the amendment of soil passivators, which will ultim...
Fei Miao, Xin Zhang, Qingling Fu, Hongqing Hu et al.
Sulfur plays an essential role in agricultural production, but few studies have been reported on how sulfur simultaneously impacts the transformation of cadmium (Cd) and arsenic (As) in the soil-rice system. This research selected two soils co-contaminated with both Cd and As, varying in acidity and...
Qian Li, Qingling Fu, MS Islam, Jun Zhu et al.
Castor (Ricinus communis L.) has potential for phytoremediation of heavy metal-polluted soil due to its high accumulating capacity. In this study, four endophytic bacteria strains (TR16, TR18, TR21 and YS3), were used to investigate the effect of their individual and combined inoculations on castor'...
Iftikhar Ahmad, Hongqing Hu, MS Islam, Qingling Fu et al.
The coexistence of cadmium (Cd(II)) and arsenic (As(III)) has long been an environmental problem. Green and cost-effective biochar (BC) shows considerable potential for addressing environmental issues, including the concurrent elimination of cadmium (Cd(II)) and arsenic (As(III)) from water and soil...
Gang Wu, Md. Shoffikul Islam, Qingling Fu, Yonghong Liu et al.
Cadmium (Cd) contamination in agricultural soils poses severe threats to human health and ecosystem integrity. While biochar is recognized for its ability to immobilize heavy metals, the impact of plant-derived low molecular weight organic acids (LMWOAs), such as citric acid (CA), on this process re...
Jian Zhou, Hongqing Zhu, Huazhong Shu, Limin Luo
In this paper, a new inter-iteration filtering scheme based on diffusion Maximum a Posteriori (MAP) estimation for Positron emission tomography (PET) image reconstruction is proposed. This is achieved by gaining the insights into the classical MAP iteration (e.g. the 'one-step-late' algorithm, OSL) ...
Hongqing Zhu, Huazhong Shu, Jian Zhou, Christine Toumoulin et al.
Iterative algorithms such as maximum likelihood-expectation maximization (ML-EM) become the standard for the reconstruction in emission computed tomography. However, such algorithms are sensitive to noise artifacts so that the reconstruction begins to degrade when the number of iterations reaches a ...
Xinlei Peng, Gang Wu, Qingling Fu, Jun Zhu et al.
This study investigated the remediation effects of iron-modified biochar (FeBC-1 and FeBC-2) on arsenic (As) and cadmium (Cd) co-contaminated paddy soil and elucidated the underlying mechanisms from the perspectives of rhizosphere microbial ecology and plant As and Cd accumulation. A pot experiment ...
Xinlei Peng, MS Islam, Qian Li, Qingling Fu et al.
Biochar and phosphate fertilizer are commonly employed for the mitigation of soil cadmium (Cd) contamination. Nevertheless, there is a dearth of research regarding the mechanism behind their joint implementation. In this study, a combination of corn straw biochar (0 (C0), 5 (C5), and 10 (C10) g kg−1...
Min Liu, Hongqing Hu, Md. Shoffikul Islam, Xiongfei Rao et al.
Iftikhar Ali Ahmad, Muhammad Taqi Mehran, Sharjeel Haider, Zaryab Murad et al.
Goethite-enriched biochar has been widely studied for contaminant stabilization. Yet, the development and efficacy of a single composite material that integrates goethite-biochar with a calcium-based amendment (e.g., gypsum) for co-contaminated soils remain unexplored, particularly the interactive e...
Zaryab Murad, Qingling Fu, Fang Lingchuan, Hongqing Hu et al.
Gang Wu, Xinlei Peng, Md. Shoffikul Islam, Qingling Fu et al.
Three biodegradable organic acids, citric acid (CA), malic acid (MA), and oxalic acid (OA), were evaluated for their ability to remove cadmium (Cd), lead (Pb), and copper (Cu) from contaminated soils. The effects of organic acid concentration, solution pH, and treatment time on metal removal were sy...