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  • Open Access

    ARTICLE

    Modeling and Estimating Soybean Leaf Area Index and Biomass Using Machine Learning Based on Unmanned Aerial Vehicle-Captured Multispectral Images

    Sadia Alam Shammi1,2, Yanbo Huang1,*, Weiwei Xie1,2, Gary Feng1, Haile Tewolde1, Xin Zhang3, Johnie Jenkins1, Mark Shankle4

    Phyton-International Journal of Experimental Botany, Vol.94, No.9, pp. 2745-2766, 2025, DOI:10.32604/phyton.2025.068955 - 30 September 2025

    Abstract Crop leaf area index (LAI) and biomass are two major biophysical parameters to measure crop growth and health condition. Measuring LAI and biomass in field experiments is a destructive method. Therefore, we focused on the application of unmanned aerial vehicles (UAVs) in agriculture, which is a cost and labor-efficient method. Hence, UAV-captured multispectral images were applied to monitor crop growth, identify plant bio-physical conditions, and so on. In this study, we monitored soybean crops using UAV and field experiments. This experiment was conducted at the MAFES (Mississippi Agricultural and Forestry Experiment Station) Pontotoc Ridge-Flatwoods Branch… More >

  • Open Access

    ARTICLE

    Effects of Microplastics on Growth Pattern of Pinus massoniana and Schima uperba

    Keke Zhang1,2,3, Yong Cui1,2,3, Changchang Shao1,2,3, Liqing Yang1,2,3, Yuxin Wang1,2,3, Yao Fang1,2,3, Hua Zhou4, Jie Wang1,2,3, Honglang Duan1,2,3,*

    Phyton-International Journal of Experimental Botany, Vol.94, No.9, pp. 2855-2871, 2025, DOI:10.32604/phyton.2025.065683 - 30 September 2025

    Abstract As ubiquitous environmental contaminants, microplastics (MPs) have garnered global concern due to their persistence, bioaccumulation potential, and multifaceted threats to ecosystem health. These particles threaten terrestrial ecosystems via soil contamination; however, research on their phytotoxicity remains predominantly focused on herbaceous plants. The responses of woody plants to MPs and their interspecific differences are severely unexplored. Here, two important ecological and economical tree species in southern China, Pinus massoniana (P. massoniana) and Schima superba (S. superba), were selected to explore the ecotoxicity effects of polyethylene (PE) and polypropylene (PP) MPs (the two most abundant species in the soil) on… More >

  • Open Access

    REVIEW

    The Reductive Amination of Biomass-Based Aldehydes and Alcohols towards 2,5-bis(aminomethyl)furan: Progress, Challenges and Prospects

    Li Ji1,2, Jiawei Mao1,3, Ruixiang Li1,*, Jiaqi Xu1,*

    Journal of Renewable Materials, Vol.13, No.9, pp. 1683-1706, 2025, DOI:10.32604/jrm.2025.02025-0043 - 22 September 2025

    Abstract Primary diamines play an important role in the chemical industry, where they are widely used as raw materials for the manufacture of pharmaceuticals and polymers. Currently, primary diamines are mainly derived from petroleum, while harsh or toxic conditions are often needed. Biomass is abundant and renewable , which serves as a promising alternative raw material to produce primary diamines. This review primarily focuses on the synthesis of 2,5-bis(aminomethyl)furan (BAMF), a bio-based diamine with potential as a biomonomer for polyamides and polyureas. Specifically, this review emphasizes the synthesis of BAMF from three biomass-derived alcohols and aldehydes,… More > Graphic Abstract

    The Reductive Amination of Biomass-Based Aldehydes and Alcohols towards 2,5-bis(aminomethyl)furan: Progress, Challenges and Prospects

  • Open Access

    REVIEW

    Sustainable Biocomposites from Renewable Resources in West Africa: A Review

    Souha Mansour1,2,*, Amandine Viretto1,2, Marie-France Thevenon1,2,*, Loïc Brancheriau1,2

    Journal of Renewable Materials, Vol.13, No.8, pp. 1547-1586, 2025, DOI:10.32604/jrm.2025.02024-0078 - 22 August 2025

    Abstract The use of agricultural residues in biocomposite production has gained increasing attention, driven by several benefits. Converting agricultural by-products into bio-based materials within a circular economy represents a sustainable strategy to mitigate lignocellulosic waste, reduce reliance on fossil resources, and lower environmental pollution. This approach also creates economic opportunities for rural African communities by generating diverse income sources for workers in collection, processing, and manufacturing. As a result, the integration of agricultural residues into biocomposites production not only addresses environmental concerns but also fosters economic growth and supports rural development. In this review, five biomasses… More > Graphic Abstract

    Sustainable Biocomposites from Renewable Resources in West Africa: A Review

  • Open Access

    ARTICLE

    Limitation of RGB-Derived Vegetation Indices Using UAV Imagery for Biomass Estimation during Buckwheat Flowering

    E. M. B. M. Karunathilake1,#, Thanh Tuan Thai1,2,3,#, Sheikh Mansoor1, Anh Tuan Le3,4, Faheem Shehzad Baloch1,5, Yong Suk Chung1,*, Dong-Wook Kim6,*

    Phyton-International Journal of Experimental Botany, Vol.94, No.7, pp. 2215-2228, 2025, DOI:10.32604/phyton.2025.067439 - 31 July 2025

    Abstract Accurate and timely estimation of above-ground biomass is crucial for understanding crop growth dynamics, optimizing agricultural input management, and assessing productivity in sustainable farming practices. However, conventional biomass assessments are destructive and resource-intensive. In contrast, remote sensing techniques, particularly those utilizing low-altitude unmanned aerial vehicles, provide a non-destructive approach to collect imagery data on plant canopy features, including spectral reflectance and structural details at any stage of the crop life cycle. This study explores the potential visible-light-derived vegetative indices to improve biomass prediction during the flowering period of buckwheat (Fagopyrum tataricum). Red, green, and blue (RGB)… More >

  • Open Access

    ARTICLE

    Derivative Free and Dispatch Algorithm-Based Optimization and Power System Assessment of a Biomass-PV-Hydrogen Storage-Grid Hybrid Renewable Microgrid for Agricultural Applications

    Md. Fatin Ishraque1, Akhlaqur Rahman2, Kamil Ahmad1, Sk. A. Shezan3,*, Md. Meheraf Hossain1, Sheikh Rashel Al Ahmed1, Md. Iasir Arafat1, Noor E Nahid Bintu4

    Energy Engineering, Vol.122, No.8, pp. 3347-3375, 2025, DOI:10.32604/ee.2025.067492 - 24 July 2025

    Abstract In this research work, the localized generation from renewable resources and the distribution of energy to agricultural loads, which is a local microgrid concept, have been considered, and its feasibility has been assessed. Two dispatch algorithms, named Cycle Charging and Load Following, are implemented to find the optimal solution (i.e., net cost, operation cost, carbon emission. energy cost, component sizing, etc.) of the hybrid system. The microgrid is also modeled in the DIgSILENT Power Factory platform, and the respective power system responses are then evaluated. The development of dispatch algorithms specifically tailored for agricultural applications… More >

  • Open Access

    ARTICLE

    Comparative Study on the Phenolic Compound Extraction in the Biorefinery Upgrading Process of Multi-Feedstock Biomass Waste Based Bio-Oil

    Haniif Prasetiawan1,2,*, Dewi Selvia Fardhyanti1, Hadiyanto2, Widya Fatriasari3

    Journal of Renewable Materials, Vol.13, No.7, pp. 1347-1366, 2025, DOI:10.32604/jrm.2025.02024-0070 - 22 July 2025

    Abstract Bio-oil is a renewable fuel that can be obtained from biomass waste, such as empty palm fruit bunches, sugarcane bagasse, and rice husks. Within a biorefinery framework, bio-oil had not met the standards as a fuel due to the presence of impurities like corrosive phenol. Therefore, the separation of phenol from bio-oil is essential and can be achieved using the extraction method. In this study, biomass wastes (empty fruit bunches of oil palm, sugarcane bagasse, and rice husk) were pyrolyzed in a biorefinery framework to produce bio-oil, which was then refined through liquid-liquid extraction with… More >

  • Open Access

    REVIEW

    A Review: Sources, Preparation and Application of Nanocellulose

    Haoquan Xue1, Yujie Zhang1, Zhuang Zhao1, Haoran Gao1, Wanlin Bao1, Jiaxuan Li2, Zhiheng Zhang2, Qi Wang1, Qiang He1,*

    Journal of Polymer Materials, Vol.42, No.2, pp. 379-409, 2025, DOI:10.32604/jpm.2025.066695 - 14 July 2025

    Abstract Nanocellulose, derived from abundant lignocellulosic biomass, has emerged as a transformative material with unparalleled versatility across industries. This review systematically analyzes its sources, extraction methods, and multidimensional applications. Key findings include: (1) Plant fiber hierarchy dictates nanocellulose properties, with wood-derived cellulose offering high crystallinity and agricultural waste enabling cost-effective production. (2) Acid hydrolysis remains dominant for cellulose nanocrystals (CNCs), while mechanical methods yield high-aspect-ratio cellulose nanofibrils (CNFs). (3) Nanocellulose’s mechanical strength, biocompatibility, and tunable surface chemistry drive innovations in energy storage (e.g., supercapacitors), biosensors (e.g., glucose monitoring), and biomedical engineering (e.g., 3D-printed scaffolds). Challenges in More >

  • Open Access

    REVIEW

    Synthesis of Biomass Polyurethane and Its Properties

    Zhen-Yu Chen1, Yue-RU Wang1, De-Yi Teng1, Yan-Fang Xue1, Gui-Chang Jiang1,2,*

    Journal of Polymer Materials, Vol.42, No.2, pp. 359-377, 2025, DOI:10.32604/jpm.2025.063342 - 14 July 2025

    Abstract PU, or polyurethane, features a repeating urethane group (-NH-COO-) in its molecular structure. Traditionally, PUs are synthesized from isocyanate and polyol compounds derived from fossil resources through polymerization reactions. The depletion of fossil fuels and the increasing climate problems call for the expansion of more renewable sources of chemicals, such as modern biomass. However, the conversion of biomass into chemicals is challenging due to the inherent molecular complexity of its composition. In recent years, advances in green chemistry have led researchers to focus on developing bio-based polyurethanes by sourcing polyols, isocyanates, and chain extender precursors More >

  • Open Access

    ARTICLE

    Impact of Pyrolysis Parameters on Biochar and Activated Carbon Properties from Cistus ladaniferus for Environmental Applications

    Hammadi El Farissi1,2,*, Anass Choukoud1,2, Bouchaib Manoun3,4, Mohamed El Massaoudi5,6, Abdelmonaem Talhaoui2

    Journal of Renewable Materials, Vol.13, No.6, pp. 1251-1266, 2025, DOI:10.32604/jrm.2025.02025-0004 - 23 June 2025

    Abstract In light of the growing urgency to address environmental degradation and improve carbon sequestration strategies, this study rigorously investigates the potential of Cistus ladaniferus as a viable feedstock for biochar and activated carbon production. The influence of pyrolysis temperature, heating rate and particle size on biochar yield was systematically examined. The results demonstrate that increasing pyrolysis temperature and heating rate significantly reduces biochar yield, while particle size plays a crucial role in thermal degradation and biochar retention. To evaluate the structural and chemical properties of the materials, various characterization techniques were employed, including Fourier-transform infrared spectroscopy… More > Graphic Abstract

    Impact of Pyrolysis Parameters on Biochar and Activated Carbon Properties from <i>Cistus ladaniferus</i> for Environmental Applications

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