Publications by authors named "Quan Feng"

For flood-prone, developing nations where hydrological data is scarce, an innovative methodological approach is essential. This study aims to explore the potentiality of modelling daily evapotranspiration time series by checking causal relationship among the available climate variables in a flood-prone, data-deficient region like Samar in the Philippines. First, to verify if the available variables (rainfall, air pressure and the four (4) Niño Sea Surface Temperature (SST) Indices) have direct effects to evapotranspiration, a causality test called Convergent Cross-Mapping (CCM) was used.

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Biosensing technologies have demonstrated significant potential in exploring the binding of drugs to receptor tyrosine kinases (RTKs). As a typical transmembrane receptor, there are still several shortcomings in the utilization of the intracellular kinase domain of RTKs, the primary action site of small-molecule inhibitors, resulting in insufficient binding and unclear action sites, which impair the efficiency and accuracy of biosensing. Herein, using epidermal growth factor receptor (EGFR) as an example, we reported a biosensing platform based on cell membrane camouflage technology for evaluating drugs binding to the intracellular kinase domain of EGFR.

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Few-shot learning (FSL) methods have made remarkable progress in the field of plant disease recognition, especially in scenarios with limited available samples. However, current FSL approaches are usually limited to a restrictive setting where base classes and novel classes come from the same domain such as PlantVillage. Consequently, when the model is generalized to new domains (field disease datasets), its performance drops sharply.

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To ensure national food security amidst severe water shortages, agricultural irrigation must be reduced through scientific innovation and technological progress. Efficient monitoring is essential for achieving water-saving irrigation and ensuring the sustainable development of agriculture. UAV hyperspectral remote sensing has demonstrated significant potential in monitoring large-scale crop leaf water content (LWC).

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This study aimed to explore the effect of prednisone (PDN) combined with cyclophosphamide (CTX) on bleomycin-induced pulmonary fibrosis (PF) in rats via circular RNA mortality factor 4 like 1 (MORF4L1)/microRNA (miR)-29a-3p/Bromodomain protein 4 (BRD4) axis. A rat model of PF was induced by bleomycin and treated with PDN combined with CTX, and the lentiviral vectors that interfered with MORF4L1, miR-29a-3p, or BRD4 expression were injected into the tail vein at the same time. The mRNA expressions of MORF4L1, miR-29a-3p, BRD4, and fibrosis-associated proteins including fibronectin, connective tissue growth factor, and collagen I were detected by real-time quantitative polymerase chain reaction.

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Accurate identification of potato diseases is crucial for reducing yield losses. To address the issue of low recognition accuracy caused by the mismatch between target domain and source domain due to insufficient samples, the effectiveness of Multi-Source Unsupervised Domain Adaptation (MUDA) method in disease identification is explored. A Multi-Source Domain Feature Adaptation Network (MDFAN) is proposed, employing a two-stage alignment strategy.

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Intensive livestock wastewater poses threat to ecosystem. A novel wooden-modified biocarrier was applied in this study to enhance the livestock wastewater treatment in anoxic-aerobic systems. Compared to the ordinary polyethylene (PE) biocarrier, the novel wooden-modified biocarrier improved the biomass owing to its rough surface and porous side wall, and had better nitrogen removal ability.

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Article Synopsis
  • Deep networks are essential for identifying agricultural diseases, but their large size makes them difficult to deploy on devices with limited resources, like plant protection robots.
  • To address this issue, the study uses knowledge distillation to compress these networks, which helps reduce the number of parameters and computational complexity.
  • The research finds that using DenseNet40 as the teacher network and ShuffleNetV2 as the student network achieves the best results, with a 90.59% accuracy while significantly lowering the model's size from 0.29 GB to 0.045 GB.
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The rational design of material structures can be an effective approach to enhance the performance of solar-driven clean water production. In this study, a hollow structural nanofibrous membrane was developed by mimicking the hollow structure of polar bear hair using coaxial electrospinning. The shell layer consisted of carbon nanoparticles (C NPs) decorated CuO nanosheets (C@CuO), that exhibited photothermal conversion capacity.

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The impact of a novel sawdust-modified carrier on the performance of aerobic sequencing batch reactor (SBR) was examined. Compared with the conventional polyethylene (PE) carrier, the sawdust-modified carrier had coarse surface and porous side wall, which was beneficial for the rapid formation of biofilm. The biomass of sawdust-modified carrier was 3.

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Article Synopsis
  • Anaerobic digestion (AD) is explored as a method for treating vegetable waste water (VWW), with a focus on improving treatment methods using modified magnetic micro-particles (MMP).
  • The study created three types of MMPs by adding different forms of polyacrylamide, finding that the anionic variant (aPAM-MMP) significantly reduced chemical oxygen demand (COD) and boosted production of hydrogen gas and volatile fatty acids.
  • The experiments also revealed that aPAM-MMP enhanced the microbial community involved in organic matter degradation, indicating its potential as an effective solution for efficient VWW treatment.
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  • Relaxor ferroelectrics are essential for pulse-power dielectric capacitors, but improving energy density often reduces energy efficiency in high fields.
  • This study introduces a new high-entropy ceramic made from a mix of ferroelectric cations, which creates a unique dipole structure that enhances energy density and efficiency.
  • The resulting materials achieved impressive recoverable energy densities (up to ~26.3 J/cm³) with high efficiency and stability for use in multilayer ceramic capacitors.
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  • A visible light-driven biomass photo-enzyme system was developed using g-CN and immobilized laccase through metal-organic framework (MOF) to enhance dye degradation.
  • The structured bacterial cellulose (BC) supports the stable integration of g-CN and MOF while improving the reusability of the system and preventing direct contact between photocatalysts and enzymes.
  • The system demonstrates a high degradation efficiency of 100% for methylene blue and 96.1% for rhodamine B in just 10 minutes, indicating its potential for advanced wastewater treatment.
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PET/PA6, hollow, segmented-pie, microfiber nonwovens (PET/PA6 HSMNs) play an important role in a microfiber, synthetic leather base. Most of the current PET/PA6 HSMNs generally lack in hygiene performance. Moreover, there is an urgent need for the asymmetric wettability of PET/PA6 HSMNs to ensure the comfort of clothing.

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In nature, spider web is an interwoven network with high stability and elasticity from silk threads secreted by spider. Inspired by the structure of spider webs, light-driven liquid crystal elastomer (LCE) active yarn is designed with super-contractile and robust weavability. Herein, a novel biomimetic gold nanorods (AuNRs) @LCE yarn soft actuator with hierarchical structure is fabricated by a facile electrospinning and subsequent photocrosslinking strategies.

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Article Synopsis
  • Organic semiconductor photocatalysts, specifically the Cu-BiO/polyacrylonitrile (Cu-BiO/PAN) mat, exhibit superior performance in degrading dyes compared to traditional inorganic alternatives.
  • The Cu-BiO/PAN mat achieves over 96% degradation of methylene blue and rhodamine B, outperforming standalone Cu-BiO particles by 4.5 times and PAN by 10.2 times, even after multiple uses.
  • The study highlights the importance of the coordination between Cu-BiO and PAN, which enhances carrier migration and radical generation, facilitating efficient dye degradation under varying pH conditions.
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Diseases cause crop yield reduction and quality decline, which has a great impact on agricultural production. Plant disease recognition based on computer vision can help farmers quickly and accurately recognize diseases. However, the occurrence of diseases is random and the collection cost is very high.

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Biocarrier is the key factor for the stable operation of moving bed biofilm reactor (MBBR). To achieve efficient simultaneous nitrification and denitrification (SND), this study provided novel flocking materials as biocarriers. The biofilm formation experiment showed that longer flocking carrier was more conducive to biomass accumulation, resulting in greater oxygen uptake rate.

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A novel suspended carrier was prepared by sticking activated carbon (AC) and magnetite (FeO) onto polypropylene slices. Although this carrier could not reverse the decreased denitrification capacity trends under anoxic conditions at an influent carbon/nitrogen (C/N) ratio of 2, it enhanced denitrification by stimulating sludge reduction and accelerating electron transfer to certain extent. The carrier stuck by mixed AC/FeO exhibited better performance in terms of sludge reduction, extracellular polymeric substances (EPS) secretion, and denitrification than that merely stuck by AC and FeO at an influent C/N ratio of 2.

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Poor mechanical properties and low photothermal efficiency of silk fibroin (SF)-based aerogels are current challenges that need to be addressed. Herein, SF composite aerogel was developed to enhance the mechanical properties through physical interpenetration of natural down fiber (Df) and hydrogen bonds formed among SF, Df, and polypyrrole (PPy) and to improve the evaporation performance via in-situ polymerization of PPy. The resultant Df/PPy@SF aerogel showed significant improvement of compressive stress (194.

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Nitrogen removal is often limited in municipal wastewater treatment due to the lack of sufficient carbon source. Utilizing volatile fatty acids (VFAs) from waste activated sludge (WAS) fermentation broth as a carbon source is an ideal alternative to reduce the cost for wastewater treatment plants (WWTPs) and improve denitrification efficiency simultaneously. In this study, an anaerobic system was applied for simultaneous denitrification and WAS fermentation and the addition of magnetic microparticles (MMP) were confirmed to enhance both denitrification and WAS fermentation.

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Article Synopsis
  • Polystyrene (PS) and magnetic polystyrene (MPS) were tested during a 55-day anaerobic/oxic process to understand their impact on microorganisms in wastewater treatment.
  • Scanning electron microscopy indicated different interactions between sludge and these materials, while high-throughput sequencing revealed substantial differences in microbial communities tied to PS and MPS.
  • The study found that PS led to lower microbial function, whereas MPS enhanced nitrogen-recycling bacteria and improved microbial activity, offering valuable insights for future biocarrier selection in wastewater treatment.
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The mesencephalic locomotor region (MLR) is a brain stem area whose stimulation triggers graded forward locomotion. How MLR neurons recruit downstream vsx2 (V2a) reticulospinal neurons (RSNs) is poorly understood. Here, to overcome this challenge, we uncovered the locus of MLR in transparent larval zebrafish and show that the MLR locus is distinct from the nucleus of the medial longitudinal fasciculus.

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Polyester/polyamide 6 hollow segmented pie bicomponent spunbond hydro-entangled microfiber nonwovens (PET/PA6) with a microfilament structure have recently emerged in many markets around the world due to their green, high-strength, and lightweight properties. However, PET/PA6 is highly hydrophobic, which inhibits its large-scale application at present. In order to enhance the hydrophilic performance of PET/PA6, many methods have been applied, but the effects are not obvious.

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