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Estimation of System Reliability Based on Inverted Exponentiated Pareto Distribution Under a Progressively First-Failure Censored Scheme With Application
This article explores and derives the estimation of the multicomponent stressstrength (MSS) reliability parameter, assuming that the samples are coming from the inverted exponentiated Pareto distribution using a progressively first-failure censored scheme. To estimate the MSS reliability, both classical and Bayesian approaches are adopted. In the classical approach, the maximum likelihood and the asymptotic confidence interval estimation methods are used. The Bayes estimates with their corresponding highest posterior density credible interval estimates are obtained under the Bayesian approach, under the linear exponential loss function under both the noninformative and gamma informative priors. In addition, to compute the Bayes estimates, Markov chain Monte Carlo methods are used. To compare the efficacy of the different estimation strategies adopted in this paper, a Monte Carlo simulation study is carried out. To demonstrate the applicability of the proposed methodology, two real-life scenarios resulting/arising from two different carbon fiber data sets arere-analyzed. 2025 The Author(s). Quality and Reliability Engineering International published by John Wiley & Sons Ltd. -
Model-Independent Cosmography with Logarithmic Polynomial using Recent Observational Data
The accelerated expansion of the Universe remains a fundamental challenge in cosmology, motivating model-independent methods to reconstruct its expansion history without relying on specific dark energy models. Cosmography, which employs series expansions of cosmological observables around the present epoch, provides a powerful kinematic framework rooted in the cosmological principle. However, standard Taylor expansions suffer from limited convergence at high redshift, prompting the exploration of alternative expansions. In this work, logarithmic polynomial cosmography is investigated, which expands observables in powers of the logarithm of redshift, thereby enhancing convergence over a broad redshift range while maintaining physical insight. The logarithmic polynomial parameters are constrained using recent datasets, including gravitational-wave standard sirens, DESI DR2, cosmic chronometers, and multiple Type Ia supernova compilations (DES-SN5YR, Union3, Pantheon+SH0ES). The analysis demonstrates the efficacy of the logarithmic approach in accurately modeling the cosmic expansion history, providing an interpretable alternative to traditional cosmographic techniques. 2026 Wiley-VCH GmbH. -
Relational Time as a Stochastic Variable in ADM Gravity
The absence of a fundamental time parameter in canonical quantum gravity is motivating the search for internal clocks by which evolution is defined relationally. While formal solutions are provided classical deparametrization schemes they often rely on semiclassical limits or fixed foliations that break general covariance. In this work, a canonical framework is constructed where time emerges dynamically as a stochastic degree of freedom, identified with a massless scalar field whose conserved momentum current defines a relational foliation. Unlike semiclassical stochastic gravity approaches where noise is introduced externally, here the stochasticity arises from coarse-graining of unresolved transverse-traceless graviton modes, leading to an intrinsic, dynamically coupled stochastic clock field. This leads to a diffusion-like broadening of the wavefunctional across neighboring clock slices, offering a novel stochastic phenomenology of the WheelerDeWitt equation. The resulting evolution remains consistent with hypersurface-deformation algebra in an ensemble sense, while introducing an intrinsic probabilistic nature to relational time. This work thus establishes the theoretical foundation for future applications in quantum cosmology and the emergence of classicality from quantum gravitational systems. 2025 Wiley-VCH GmbH. -
Cobalt Embedded N-Doped Carbon Spheres Derived From Cassava Starch for Enhanced Oxygen Reduction Reaction in Alkaline Medium
Cathodic oxygen reduction reaction (ORR) is essential for fuel cells and metal-air batteries. The sluggishness of ORR necessitates the synthesis of effective and durable catalysts to intensify the reaction process without compromising cost-effectiveness. Here, cobalt and cobalt oxides were embedded on N-doped carbon microspheres (Co?N?C/CS) using cassava starch as a carbon source. The catalyst exhibits a surface area of 388.73 m2 g?1, with a predominantly mesoporous texture. The presence of the Co?N bond, along with pyridinic and graphitic nitrogen, contributes to the ORR activity by enhancing the density of active sites. The catalyst achieves a limiting current density of ?4.64mA cm?2 with an onset potential of 0.91V (vs RHE). The calculated electron transfer value of 3.74 indicates the 4e- pathway ORR mechanism supported by Co?N?C/CS. Moreover, the catalyst demonstrates a high stability in 0.1M KOH with 99% of current retention after 14000 s, exceeding commercial Pt/C. Relatively high methanol tolerance was also observed for Co?N?C/CS by the addition of 3M methanol in the electrolyte during current-time response, highlighting its suitability as a cathode catalyst for direct methanol fuel cells (DMFC). 2026 Wiley-VCH GmbH. -
Boosting DSSC Performance: Co-Sensitization With Morinda citrifolia-Derived Carbon Dots for Enhanced Light Harvesting
This study explores a novel co-sensitization architecture utilizing carbon dots (CDs) derived from Morinda citrifolia in combination with the N719 dye to enhance the light-harvesting efficiency of dye-sensitized solar cells (DSSCs). The CDs were synthesized through a hydrothermal process using an aqueous extract of Morinda citrifolia fruit juice, resulting in a material with broad optical absorption properties. To investigate their effectiveness in DSSCs, the synthesized CDs were incorporated and used with two different co-sensitization strategies. In the first approach (DN), the CDs were initially adsorbed onto the photoanode, followed by sensitization with N719 dye. The second configuration (DND) employed a sandwich structure where the photoanode was sequentially sensitized with CDs, N719 dye, and an additional layer of CDs. In this study, TiO2 was used as the photoanode material, with N719 and CD-modified N719 acting as sensitizers, Iodolyte HI-30 as the electrolyte, and Platisol T/sp as the counter electrode. Among the two configurations, the DND structure exhibited the highest power conversion efficiency (PCE) of 5.3%, demonstrating the potential of this co-sensitization approach. The significant enhancement in DSSC performance highlights the effectiveness of Morinda citrifolia-derived carbon dots as a promising, cost-effective strategy for improving the efficiency of next-generation DSSCs. 2026 Wiley-VCH GmbH. -
Exploring the Optical Properties of Functional Carbon Dots Derived from Jackfruit Seeds and their Potential Applications
Carbon dots are nanomaterials that exhibit exceptional optical properties due to their fluorescence, photoluminescence tunability, broad absorption, and photostability. This study reports the synthesis of carbon dots (CDs) from agricultural remains, Jackfruit seeds (Artocarpus heterophyllus), through a facile synthesis technique of a one-step microwave-assisted solvothermal method. The synthesized CDs offer good optical properties, by absorbing UV radiation and giving a broad excitation wavelength-dependent emission (300 to 700nm). This evidences the synthesized material to act as a down-converter in various applications, like solar cells and LEDs. The tunability of the bandgap of these nanocarbons is also explored by employing solvatochromism in solvents of varying polarity, including DI water, DMF, and NMP, enhancing their optical properties. Further, they can also be used for UV protection applications like window panes, sunglasses, and sunscreen creams, owing to the 97.44% UV absorption for the CDs dispersed in NMP. Similarly, the down-conversion ability of this material is utilized to convert UV-LEDs to W-LEDs with CRI point, Ra = 77, and CCT = 6785 K, which resembles cool bright daylight. Thus, the synthesized CDs from jackfruit seeds exhibit exemplary optical properties, opening wide avenues into UV protection, lighting technologies, and other such potential applications. 2025 Wiley-VCH GmbH. -
Surface Modification and Enhanced Catalytic Interface in Bifunctional Montmorillonite for the Synthesis of Novel Thiazolo[3,2-a]pyrimidine-6-Carboxylates
This study centers on the modification of montmorillonite (MMT) through the incorporation of pillaring agents, specifically ceria (CeO2) and zirconia (ZrO2), using a straightforward synthesis technique. The resulting catalyst is thoroughly characterized by employing various standard spectroscopic and electron microscopic methods to verify its structural and compositional integrity. Moreover, temperature-programmed desorption (TPD) is utilized to assess and quantify the acidic properties of the catalyst. The modified MMT catalyst is then applied in the ultrasonic-assisted one-pot synthesis of novel thiazolo[3,2-a]pyrimidine-6-carboxylates. This approach allowed for the efficient production of these compounds, which are subsequently characterized by 1H NMR, 13C NMR, and High-Resolution Mass Spectrometry (HRMS) to confirm their structures. Additionally, the study elucidates the mechanistic role of ultrasonication in enhancing the synthesis process, highlighting the way sonic energy improves reactant dispersion, accelerates reaction rates, and facilitates high-yield formation of the target heterocycles. 2025 Wiley-VCH GmbH. -
Temperature-Tuned Nitrogen and Oxygen Self-Doped Carbonized Polymer Dots for Enhanced Supercapacitor Applications
A one-step hydrothermal method is used to synthesize nitrogen and oxygen self-doped carbonized polymer dots (N, O-CPDs) from o-phenylenediamine (o-PD) as the precursor. Detailed structural analysis shows that the evolution of defects is temperature-dependent, with the synthesis temperature being crucial in determining the level of carbonization and structural disorder. This process results in a complex carbon structure featuring sp2 graphitic domains mixed with controlled structural defects, essential for electrochemical activity. The N, O-CPDs demonstrate remarkable electrochemical performance when tested as electrode materials for supercapacitors. Notably, the sample synthesized at 220C achieves a high specific capacitance of 205 Fg?1 at 1 Ag?1 in a three-electrode setup and 58 Fg?1 in a two-electrode configuration. Additionally, it shows excellent cycling stability, maintaining 85% of its initial capacitance after 4500 cycles at 4 Ag?1. This impressive performance is attributed to the synergistic effects of nitrogen and oxygen doping, which create numerous active sites and enhance charge transfer efficiency. The combination of optimized structural disorder and heteroatom doping significantly improves the electrochemical properties of these N, O-CPDs, highlighting their potential as advanced materials for energy storage applications. 2025 Wiley-VCH GmbH. -
Development of Green Synthesized Novel Carbon Dots from Ruta Graveolens L. for Fluorescent and Intracellular Sensing of Mercury Ions in Pico-molar (pm) Concentration
Green nanotechnology, which uses carbon nanomaterials for environmental remediation, is the pioneer among the prevailing approaches for the production and characterization. In the present study, highly fluorescent carbon dots (CDs) from Ruta Graveolens (ARH-CD) is developed, and its efficacy as a fluorescent sensor and biomarker is investigated. They act as a fluorescence sensor for Hg2+ over an extensive concentration range of 1 picomolar (pm) to 1 molar (m), with a detection limit as low as 26.75 pm. The studies reveal ARH-CD as an effective biomarker for intracellular toxicity analysis and a fluorescent probe for multi-colored (blue, green, and red) imaging of HEK293 cell lines. After 24 h of incubation, it is found that the ARH material reveals noticeable biocompatibility and visible fluorescence, with a viability of 98.88% at 5 gmL?1 and over 78.33% even at a concentration of 100 gmL?1. The IC50 value for the MTT assay for cell viability results is calculated to be 224.56 4.67 g, which further confirms the appreciable biocompatibility of the ARH-CD. The obtained samples are effective in being inspected for the intracellular detection of Hg2+ and serve as a possible candidate for cell imaging. 2024 Wiley-VCH GmbH. -
Synthesis and characterization of SnO2-SA-FA nanocomposite for anticancer (cervical cancer HeLa cells), antimicrobial (methicillin-resistant Staphylococcus aureus, Candida albicans) and antioxidant activities
This study reports the synthesis and characterization of a novel sodium alginate (SA) and folic acid (FA) functionalized tin oxide nanocomposite (SnO2-SA-FA) and investigates its antimicrobial, antioxidant and anticancer properties. XRD analysis confirmed the tetragonal crystalline structure of SnO2, while the crystallite size decreased from 28.3 nm for pure SnO2 to 22.1 nm after functionalization, indicating enhanced surface area and reactivity. UVvisible analysis revealed a reduction in bandgap energy from 3.6 to 3.4 eV, suggesting improved charge transfer capability. Photoluminescence studies showed green emission at 506 nm, indicating enhanced oxygen vacancy defects and reactive oxygen species (ROS) generation. The SnO2-SA-FA nanocomposite demonstrated enhanced antimicrobial activity against methicillin-resistant Staphylococcus aureus and Candida albicans, exhibiting zones of inhibition of 20 mm and 17 mm, respectively, with minimum bactericidal concentration values of 1600 ?g mL?1. Antioxidant studies revealed significantly improved 2,2-diphenyl-1-picrylhydrazyl radical scavenging activity, reaching 83.23% at 100 ?g mL?1 compared to 66.34% for pure SnO? nanoparticles. Cytotoxicity studies against HeLa cervical cancer cells demonstrated dose-dependent anticancer activity, with the SnO2-SA-FA nanocomposite exhibiting a lower IC50 value (concentration required to inhibit 50% of cell viability) (40.6 ?g mL?1) than pure SnO? nanoparticles (58.2 ?g mL?1). Fluorescence microscopy confirmed enhanced apoptosis induction through ROS-mediated oxidative stress and folate-receptor-targeted uptake. Furthermore, biocompatibility studies on L929 fibroblast cells showed cell viability above 80%, confirming low toxicity and favorable biological safety. These findings demonstrate that the SnO2-SA-FA nanocomposite is a promising multifunctional nanoplatform for antimicrobial, antioxidant and targeted anticancer biomedical applications. 2026 Society of Chemical Industry. 2026 Society of Chemical Industry. -
Biocompatible Pluronic F127-coated nickel titanate nanoparticles: toward effective antimicrobial and antioxidant therapies
Multidrug-resistant bacterial infections are a major global health concern. Nickel titanate (NiTiO?) nanoparticles offer potential antimicrobial applications, but their biocompatibility is limited. This study explores the surface modification of NiTiO? with Pluronic F127 (PF127) to enhance biological performance. NiTiO? nanoparticles were synthesized and coated with PF127. Characterization was performed using XRD, FTIR, HRTEM, BET and DLS. Antibacterial activity was assessed via pathogenic bacteria assays and colony-forming unit quantification. Antioxidant activity was measured using the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay, and zebrafish embryos evaluated in vivo toxicity. XRD confirmed hexagonal NiTiO?, and FTIR/HRTEM verified PF127 incorporation. BET analysis indicated a surface area of 28.66 m2 g?1 and mesoporous structure (2.59 nm pore diameter). DLS showed particle size reduction from 219.3 nm (NiTiO?) to 135.9 nm (NiTiO?PF127), confirming improved dispersion. NiTiO?PF127 exhibited enhanced antibacterial activity, with colony-forming unit counts decreasing in a concentration-dependent manner. The DPPH assay showed 53.7% radical scavenging at 20 ?g mL?1. Zebrafish embryo studies revealed higher viability and lower developmental toxicity for PF127-coated nanoparticles compared to uncoated NiTiO?. PF127 modification of NiTiO? improves dispersion, antibacterial and antioxidant activity, and biocompatibility. These results highlight NiTiO?PF127 nanocomposite as a promising candidate for biomedical and antimicrobial applications. 2026 Society of Chemical Industry. 2026 Society of Chemical Industry. -
Pluronic F127Folic Acid Modified Nickel Oxide Nanocomposites via a Facile One-Pot Approach for InVitro Anticancer, Antibacterial, and DPPH Radical Scavenging Studies
Drug-resistant bacteria and cancer remain major challenges in healthcare, highlighting the need for multifunctional nanomaterials. In this study, folic acid- and Pluronic F127-modified nickel oxide nanocomposites (NiOPF127FA) were synthesized via a one-pot method, and their invitro antibacterial, antioxidant, and anticancer properties were evaluated. XRD analysis showed a crystallite size of 19.42 nm for NiOPF127FA, while PL spectra exhibited a green emission peak at 507 nm, indicative of structural defects in the NiO lattice. NiOPF127FA displayed enhanced antibacterial activity against MRSA and Candida albicans compared to bare NiO, as evidenced by larger inhibition zones and lower MIC and MBC values. The DPPH assay demonstrated improved radical scavenging activity of the modified nanocomposites, likely related to their smaller size, higher surface area, and surface defect-mediated electron transfer. Invitro anticancer studies using rat C6 glioblastoma cells revealed dose-dependent decreases in cell viability, with IC50 values of 12.3 ?g/mL for NiO and 9.6 ?g/mL for NiOPF127FA. Fluorescence staining with AO/EB and DAPI indicated morphological changes in nuclei and alterations in MMP, consistent with induction of cell death. Overall, these findings suggest that NiOPF127FA nanocomposites exhibit improved invitro biological activity, providing a foundation for further preclinical investigations of their potential biomedical applications. 2026 John Wiley & Sons Ltd. -
A Pathway to Better EMI Shielding Performance in Natural Rubber Through Ternary Carbonaceous Filler Systems
In the present study, we fabricated and characterized ternary hybrid fillers of conductive carbon black (CCB), carbon nanotubes (CNT), and reduced graphene oxide (RGO) reinforced natural rubber (NR) composites. The ternary filler system exhibited good filler-polymer interaction as observed from the cure characteristics and mechanical properties. We used impedance analysis to study the dielectric permittivity and associated polarization mechanisms, and the AC conductivity was fitted using the Jonsher Power law. The presence of functional groups on the ternary nanofiller surfaces caused increased filler-filler interactions, leading to the formation of an excellent conductive network. Mechanical and viscoelastic studies revealed the reinforcing effect of the CCB, CNT, and RGO fillers. The theoretical models, such as Nicolais-Narkis and Turcsanyi, were employed to predict the tensile strength. Morphological analysis confirms the homogeneous dispersion of filler in the matrix. The present system also demonstrated excellent electromagnetic interference (EMI) shielding performance, with the highest shielding effectiveness (SE) values of 37.4 and 35.3 dB at 12 GHz for the ternary composites, satisfying commercial requirements. 2026 John Wiley & Sons Ltd. -
Biogenic Carboxymethyl Cellulose and L-Histidine Coated Barium Peroxide Nanocomposite: A Tri-Functional Platform Targeting Antimicrobial Resistance, Cancer, and Oxidative Stress
The study addresses the urgent need for novel therapeutic agents in combating multidrug-resistant pathogens, cancer, and oxidative stress-related diseases. Barium peroxide (BaO2) nanoparticles and its novel nanocomposite, carboxymethyl cellulose and L-histidine coated BaO2 (BaO2-CMC-LH) were synthesized, characterized, and evaluated for their antibacterial, anticancer, and DPPH radical scavenging activities. Structural and functional characterizations were carried out using various analytical techniques. Biological evaluations demonstrated enhanced antibacterial activity against Methicillin-resistant Staphylococcus aureus (MRSA) and Candida albicans (C. albicans), with BaO2-CMC-LH exhibiting superior inhibition zones compared to BaO2. For MRSA, the zone of inhibition (ZOI) for BaO2 is about 9 mm, whereas the BaO2-CMC-LH nanocomposite exhibits a substantially larger ZOI of 21 mm. Likewise, for C. albicans, BaO2 presents a ZOI of 12 mm, and BaO2-CMC-LH exhibits a greater inhibition zone of 18 mm. Cytotoxicity analysis against osteosarcoma MG-63 cells revealed significantly improved anticancer activity, with BaO2-CMC-LH achieving an IC?? value of 28.6 ?g/mL compared to 53.3 ?g/mL for BaO2. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radical scavenging assay showed that the BaO2-CMC-LH nanocomposite (78.45%) had activity compared to BaO2 alone (64.43%). These findings underscore the synergistic effects of the CMC-LH matrix in enhancing BaO2's biological activities, positioning BaO2-CMC-LH as a promising multifunctional therapeutic agent for addressing global health challenges. 2026 John Wiley & Sons Ltd. -
Pluronic F127 and Dopamine Functionalized Fe2O3 Nanocomposites: A Multifunctional Polymer-Based Platform for Anticancer, Antibacterial, and Antioxidant Applications
Cancer, bacterial infections, and oxidative stress continue to pose serious global health challenges, necessitating the development of multifunctional therapeutic agents. Iron oxide (Fe2O3) nanoparticles were selected as the core material owing to their intrinsic biocompatibility, redox activity, and established biomedical relevance. To overcome the limitations of particle aggregation and poor solubility, pluronic F127 (a biocompatible triblock copolymer) was employed as a stabilizer, while dopamine was introduced as a surface modifier to enhance functionalization, improve dispersion, and facilitate cellular uptake. The resulting Fe2O3-PF127-DOP nanocomposites were thoroughly characterized using XRD, FTIR, SEM, TEM, PL, and XPS analyses, confirming successful functionalization and enhanced stability. Antioxidant assays revealed 79.24% activity at 20 ?g/mL, comparable to Vitamin C, highlighting its antioxidant activity. Antibacterial studies against multiple pathogenic strains, including Pseudomonas aeruginosa, Escherichia coli, Klebsiella pneumoniae, Shigella dysenteriae, and Vibrio cholerae, showed markedly larger inhibition zones for Fe2O3-PF127-DOP than for Fe2O3, confirming its broad-spectrum antibacterial potential. Fe2O3-PF127-DOP exhibited superior cytotoxicity against HCT-116 colon cancer cells (IC50 = 15.3 ?g/mL) compared to Fe2O3 (IC50 = 17.2 ?g/mL), attributed to improved uptake and ROS-mediated apoptosis. Importantly, cytocompatibility studies on L929 fibroblast cells revealed high cell viability of 83% and 86% for Fe2O3 and Fe2O3-PF127-DOP, respectively, demonstrating the nanocomposite's biocompatibility. Overall, this study demonstrates that strategic functionalization of Fe2O3 with pluronic F127 and dopamine yields a stable, multifunctional nanocomposite with significant anticancer, antioxidant, and antibacterial applications. 2025 John Wiley & Sons Ltd. -
Biocompatible Sodium Alginate Modified BaO2H2O2 Nanoparticles With Improved Therapeutic Efficacy Against Multidrug-Resistant Pathogens and Cancer Cells
The increasing problem of multidrug-resistant pathogens and the limitations of conventional therapies for cancer treatments require designing new therapeutic agents. BaO2H2O2 and BaSA nanoparticles were prepared and characterized to determine their antimicrobial, antifungal, and anticancer activities. The XRD confirmed the crystallite sizes to be 34 nm for BaO2H2O2 and 25 nm for BaSA. The UVvisible analysis confirmed the band gap energies as 4.13 and 4.11 eV for BaO2H2O2 and BaSA, respectively. A shift in the blue-green PL emission from 488510 nm in BaO2H2O2 to 535 nm in BaSA indicated increased oxygen vacancies. EDAX analysis demonstrated elemental variations due to SA modification, whereas DLS measurements showed a decrease in the mean size of the nanoparticles from 116.70 nm (BaO2H2O2) to 111.90 nm (BaSA). Antimicrobial activity was shown against Klebsiella pneumoniae, Shigella dysenteriae, Escherichia coli, Pseudomonas aeruginosa, and Proteus vulgaris, while a considerable enhancement of antifungal activity against Candida albicans was observed in BaSA. Against MG-63 osteosarcoma cells, BaSA exhibited lower IC50 values (21.5, 20.2, 18.7 ?g mL?1 at 24, 48, and 72 h) when compared with BaO2H2O2 (23.4, 22.5, 21.3 ?g mL?1). Zebrafish embryos tolerated BaSA at 0.5 mg mL?1, with developmental abnormalities observed only at 1.0 mg mL?1. 2025 John Wiley & Sons Ltd. -
Influence of Material Composition and Printing Parameters on Impact Strength and Hardness Properties of SLA-Fabricated BN/Resin Composites
The impact strength and hardness characteristics of boron nitride (BN) reinforced photosensitive resin composites made by stereolithography (SLA) 3D printing are examined in this work in relation to the effects of material composition and printing settings. Taking into account the process factors of material composition, lift speed, build angle, and post-curing time, a Taguchi L16 orthogonal array was utilized to optimize the design parameters. Analysis of variance (ANOVA) and the signal-to-noise (S/N) ratio were used to examine the experimental data. Material composition of 1 wt% BN, build angle of 0, post-curing time of 60 min, and lift speed of 30 mm/min were the ideal process parameters for high impact strength, according to the S/N ratio analysis. For high hardness, the ideal parameters were the material composition of 1 wt% BN, a build angle of 90, a post-curing time of 90 min, and a lift speed of 45 mm/min. According to ANOVA results, the build angle had the biggest impact on hardness (56.74%), whereas post-curing time had the biggest impact on impact strength (49.66%). The study also indicates that all parameters should be tuned simultaneously for their combined influence on the mechanical characteristics, according to interaction graphs. 2025 John Wiley & Sons Ltd. -
Optimized Multi-Scale Attention Convolutional Neural Network for Micro-Grid Energy Management System Employing in Internet of Things
The combination of micro-grid energy management systems (EMSs) with the Internet of Things (IoT) offers a promising way to improve energy use and distribution. However, challenges such as device compatibility and the difficulty of managing energy efficiently make it hard to implement these systems effectively. This study offers a significant advancement in energy management by using IoT for microgrid systems. An Optimized Multi-scale Attention Convolutional Neural Network for microgrid EMS employing IoT (OMACNN-MGEMS-IoT) is proposed in this study, which enables efficient monitoring and control of energy resources. The proposed model's input data are gathered from the MQTT dataset. This research employs a Regularized Bias-aware Ensemble Kalman Filter (RBAEKF) for pre-processing input data, ensuring the removal of outliers and updating missing values. The MACNN is then used for effective fault detection within the microgrid. To enhance its performance, the Sheep Flock Optimization Algorithm (SFOA) is introduced to optimize the MACNN parameters, ensuring accurate fault detection. Implemented on the MATLAB platform, the performance of the OMACNN-MGEMS-IoT method is assessed through various performance metrics, demonstrating significant improvements. Notably, the proposed method achieves higher cost reductions of 25%, 22%, and 26% compared to existing approaches such as the IoT platform for energy management in multi-micro grid systems (IoT-PEM-MMS), a micro-grid system infrastructure implementing IoT for efficient energy management in buildings (MSII-IoT-EEM) and a hybrid deep learning-based online energy management scheme for industrial microgrids (HDL-OEM-IM). The findings highlight the impact of the proposed OMACNN-MGEMS-IoT method in enhancing energy efficiency and cost-effectiveness in microgrid systems. 2025 John Wiley & Sons Ltd. -
Abelian-Type Results for the Mexican Hat Wavelet Transform of Compactly Supported Distributions
In this paper, we introduce a distribution space that extends the framework of the Abelian theorems to the Mexican hat wavelet transform (MHWT) of distributions. We establish two Abelian theorems for the MHWT applied to compactly supported distributions and for locally integrable functions, providing new insights into their asymptotic behavior. 2025 John Wiley & Sons Ltd. -
A Three-Species Model With Predator-Taxis Sensitivity: Hopf Bifurcation and Active Control Stabilization
This study presents an analysis of a novel fractional two preyone predator model incorporating predator-taxis sensitivity. We conduct a comprehensive stability analysis, explore the model's chaotic nature through period-doubling bifurcations, and also show the existence of limit cycles through fractional Hopf bifurcation. It is observed that the fractional-order parameter brings in a stabilizing effect and, simultaneously, a shift of the Hopf bifurcation point. At the Hopf bifurcation point, the system moves from stable equilibria to sustained oscillations. In addition, regardless of initial conditions, the system approaches a stable limit cycle, showing the robustness of the method. We also demonstrate the effectiveness of the active control method to eliminate the periodicity of the fractional system and also unravel the decelerating influence of the fractional-order parameter on the convergence time to equilibrium. These results provide valuable insights into the stabilization of ecosystem dynamics and contribute more broadly to our understanding of population dynamics in ecological systems. 2025 John Wiley & Sons Ltd.