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  • Open Access

    PROCEEDINGS

    Investigation of Flutter Mechanism in Transonic Rotor Blades with Structural Damage via SPOD Method

    Chunxiu Ji1, Dan Xie1,*

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.30, No.2, pp. 1-1, 2024, DOI:10.32604/icces.2024.012592

    Abstract The persistence of accidents attributed to structural damage in traditional rotor blades remains a pressing concern for aeronautical experts. Given the infrequency of flutter in undamaged blades, this study directs its attention to a rotor blade afflicted with structural damage, with a primary objective of discerning flutter occurrences, elucidating underlying mechanisms, and scrutinizing resultant aeroelastic responses. This paper presents an investigation into the flutter mechanism observed in transonic rotor blades subjected to structural damage, employing the Spectral Proper Orthogonal Decomposition(SPOD) method. The study aims to understand the dynamics of flutter under the influence of structural More >

  • Open Access

    ARTICLE

    Drought Stress Alleviation in Chenopodium quinoa through Synergistic Effect of Silicon and Molybdenum via Triggering of SNF1-Associated Protein Kinase 2 Signaling Mechanism

    Asmat Askar1,#, Humaira Gul1,#, Mamoona Rauf1, Muhammad Arif2, Bokyung Lee3, Sajid Ali4,*, Abdulwahed Fahad Alrefaei5, Mikhlid H. Almutairi5, Zahid Ali Butt6, Ho-Youn Kim7, Muhammad Hamayun1,*

    Phyton-International Journal of Experimental Botany, Vol.93, No.9, pp. 2455-2478, 2024, DOI:10.32604/phyton.2024.054508 - 30 September 2024

    Abstract Drought stress negatively impacts agricultural crop yields. By using mineral fertilizers and chemical regulators to encourage plant development and growth, its impact can be mitigated. The current study revealed that exogenous silicon (Si) (potassium silicate; K2Si2O5 at 1000 ppm) and molybdenum (Mo) (ammonium molybdate; (NH4)6Mo7O24•4H2O at 100 ppm) improved drought tolerance in quinoa (Chenopodium quinoa Willd). The research was conducted in a randomized complete block design with three biological replicates. The treatments comprised T0 (control, water spray), T4 (drought stress), and T1, T2, T3, T5, T6, and T7, i.e., foliar applications of silicon and molybdenum solutions individually… More >

  • Open Access

    ARTICLE

    Diosgenin inhibited podocyte pyroptosis in diabetic kidney disease by regulating the Nrf2/NLRP3 pathway

    YU TANG1, WENXIAO HU2,*, YAJUN PENG1, XIANGDONG LING2

    BIOCELL, Vol.48, No.10, pp. 1503-1516, 2024, DOI:10.32604/biocell.2024.052692 - 02 October 2024

    Abstract Background: Podocyte injury is crucial in diabetic kidney disease (DKD) progression, and the mechanism remains unclear. The previous studies indicated Diosgenin played a key role in inhibiting podocyte injury progression. However, more research is needed to explore Diosgenin in inhibiting-molecular mechanisms in the process of podocyte injury. Methods: The content of Diosgenin in HeShenwan was detected by High-Performance Liquid Chromatography-mass spectrometry (HPLC-MS) method. The podocyte injury model was constructed by high glucose (HG)-induced mpc5 cells. The Cell Counting Kit-8 (CCK-8) assay was utilized to evaluate the activity of mpc5 cells. Pyroptosis in mpc5 cells was… More > Graphic Abstract

    Diosgenin inhibited podocyte pyroptosis in diabetic kidney disease by regulating the Nrf2/NLRP3 pathway

  • Open Access

    ARTICLE

    Suitability Evaluation for Urban Green Space Areas in Sèmè-Podji District (Southern Benin), Using GIS and AHP Methods

    Abdel Aziz Osséni1, Gbodja Houéhanou François Gbesso1,*, Sedami Igor Armand Yevide2, Etienne Romaric Adéwalé Godonou1

    Revue Internationale de Géomatique, Vol.33, pp. 201-220, 2024, DOI:10.32604/rig.2024.053500 - 11 July 2024

    Abstract Urban green areas play a vital role in enhancing the social balance, resilience, and environmental sustainability of urban settings. In Benin, while the landscaping sector is expanding, finding appropriate locations for creating green spaces remains a challenge. The purpose of this study was to identify areas conducive to the incorporation of green landscapes into urban planning within the Sèmè-Podji District. The approach used involved a multi-criteria analysis leveraging a combined GIS and Analytic Hierarchy Process (AHP) framework. Six key factors were considered: land use, elevation, slope, distance to major roads, proximity to urban hubs, and… More > Graphic Abstract

    Suitability Evaluation for Urban Green Space Areas in Sèmè-Podji District (Southern Benin), Using GIS and AHP Methods

  • Open Access

    ARTICLE

    Stability and Error Analysis of Reduced-Order Methods Based on POD with Finite Element Solutions for Nonlocal Diffusion Problems

    Haolun Zhang1, Mengna Yang1, Jie Wei2, Yufeng Nie2,*

    Digital Engineering and Digital Twin, Vol.2, pp. 49-77, 2024, DOI:10.32604/dedt.2023.044180 - 31 January 2024

    Abstract This paper mainly considers the formulation and theoretical analysis of the reduced-order numerical method constructed by proper orthogonal decomposition (POD) for nonlocal diffusion problems with a finite range of nonlocal interactions. We first set up the classical finite element discretization for nonlocal diffusion equations and briefly explain the difference between nonlocal and partial differential equations (PDEs). Nonlocal models have to handle double integrals when using finite element methods (FEMs), which causes the generation of algebraic systems to be more challenging and time-consuming, and discrete systems have less sparsity than those for PDEs. So we establish… More >

  • Open Access

    ARTICLE

    Exosomal miR-30a-5p targets NLRP3 to suppress podocyte pyroptosis in diabetic nephropathy

    WEI LU1,*, KAN GUO2, DIANMEI XI1, ZHAOXIA XIA1

    BIOCELL, Vol.47, No.9, pp. 1995-2008, 2023, DOI:10.32604/biocell.2023.024591 - 28 September 2023

    Abstract Background: Mesenchymal stem cell (MSC)-derived exosomes are closely related to pyroptosis in diabetic nephropathy (DN). This study aimed to explore the protective effect of exosomal miR-30a-5p on podocyte pyroptosis in DN. Methods: Streptozotocin was used to establish the mouse model of DN. Human bone marrow MSC-derived exosomes were extracted and identified via transmission electron microscopy, nanoparticle tracking analysis, and western blotting. MiR-30a-5p mimics and non-control (NC) mimics were transfected into MSCs and podocytes, and exosomes were isolated from the MSCs. High glucose (HG)-induced podocyte model was established to determine the effect of exosomal miR-30a-5p on pyroptosis… More >

  • Open Access

    ARTICLE

    Evaluation of Pre-Harvest Sprouting (PHS) Resistance and Screening of High-Quality Varieties from Thirty-Seven Quinoa (Chenopodium quinoa Willd.) Resources in Chengdu Plain

    Xin Pan, Ya Gao, Fang Zeng, Chunmei Zheng, Wenxuan Ge, Yan Wan, Yanxia Sun, Xiaoyong Wu*

    Phyton-International Journal of Experimental Botany, Vol.92, No.10, pp. 2921-2936, 2023, DOI:10.32604/phyton.2023.029853 - 15 September 2023

    Abstract Pre-harvest sprouting (PHS) will have a serious effect both on the yield and quality of quinoa (Chenopodium quinoa Willd.). It is crucial to select and breed quinoa varieties with PHS resistance and excellent agronomic traits for guidance production and utilization of quinoa. A comprehensive evaluation of the PHS resistance and agronomic traits of 37 species of quinoa resources was conducted in Chengdu Plain. The evaluation used various methods, including grain germination rate (GR), grain germination index (GI), total spike germination rate (SR), total grain germination index (SI), grey correlation analysis (GCA), cluster analysis and correlation analysis.… More >

  • Open Access

    ARTICLE

    A Brachypodium distachyon calcineurin B-like protein-interacting protein kinase, BdCIPK26, enhances plant adaption to drought and high salinity stress

    QINGCHEN LUO1,#,*, JIALU FENG2,#, XIUQI DENG1

    BIOCELL, Vol.47, No.5, pp. 1145-1158, 2023, DOI:10.32604/biocell.2023.027847 - 10 April 2023

    Abstract As sessile organisms, plants possess a complex system to cope with environmental changes. Ca2+ functions as a vital second messenger in the stress signaling of plants, and the CBL-interacting protein kinases (CIPKs) serve as essential elements in the plant Ca2+ signaling pathway. In this study, calcineurin B-like protein-interacting protein kinase 26 (BdCIPK26) from Brachypodium distachyon was characterized. Overexpression of BdCIPK26 enhanced tolerance to drought and salt stress of transgenic plants. Further investigations revealed that BdCIPK26 participated in abscisic acid (ABA) signaling, conferred hypersensitivity to exogenous ABA in transgenic plants, and promoted endogenous ABA biosynthesis. Moreover, BdCIPK26 was found More >

  • Open Access

    ARTICLE

    Toxic and Antifeedant Effects of Different Pesticidal Plant Extracts against Beet Armyworm (Spodoptera exigua)

    Muhammad Asad1, Rashad Rasool Khan2,*, Ahmed B. Aljuboory3, Muhammad Haroon U. Rashid4, Uttam Kumar5, Inzamam Ul Haq6, Aqsa Hafeez7, Ahmed Noureldeen8, Khadiga Alharbi9,*

    Phyton-International Journal of Experimental Botany, Vol.92, No.4, pp. 1161-1172, 2023, DOI:10.32604/phyton.2023.026513 - 06 January 2023

    Abstract The beet armyworm (BAW), Spodoptera exigua (Lepidoptera: Noctuidae) is a highly destructive pest of vegetables and field crops. Management of beet armyworm primarily relies on synthetic pesticides, which is threatening the beneficial community and environment. Most importantly, the BAW developed resistance to synthetic pesticides with making it difficult to manage. Therefore, alternative and environment-friendly pest management tactics are urgently required. The use of pesticidal plant extracts provides an effective way for a sustainable pest management program. To evaluate the use of pesticidal plant extracts against BAW, we selected six plant species (Lantana camara, Aloe vera, Azadirachta indica, Cymbopogon citratus, Nicotiana tabacum , and… More >

  • Open Access

    ARTICLE

    The microRNA pathway activation in insect cell model upon Autographa californica multiple nucleopolyhedrovirus infection

    QIAOJIN JIA1,2, YUEJUN FU1,*

    BIOCELL, Vol.47, No.3, pp. 627-645, 2023, DOI:10.32604/biocell.2023.026182 - 03 January 2023

    Abstract Background: The immune system of insects exerts fundamentally different antiviral mechanisms than mammals. MicroRNAs (miRNAs) play vital roles in developing insect antiviral immunity. MiRNAs expression profiles of insects changed significantly during baculovirus infection. Methods: Differential expression profiles of miRNAs in Spodoptera frugiperda were monitored by next-generation sequencing (NGS) and RT-qPCR during Autographa californica multiple nucleopolyhedrovirus (AcMNPV) infection. The transcription levels of genes were detected by RT-qPCR. The 50% tissue culture infective dose (TCID50) endpoint dilution assay was used to determine the proliferation of progeny virus. Results: NGS revealed that 49 miRNAs were differentially expressed in Sf9 cells, and 10… More >

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