jablonkagroup/rise_ai_scientists huggingface dataset:
Authors: C. Ebunuoha | Ebigenibo Genuine Saturday | Celestine Ebieto Ebieto
Source: International Journal of Engineering and Advanced Technology Studies (article, 2025-03-15)
Field: Materials Science — Materials Chemistry

Life Extension of Ageing FPSO and SPM Calm Buoy Hulls and Deck Plates Under Corrosion Effects - Part 1A This study entails the understanding of surveillance data that determines mitigation strategies on ageing and structural health challenges on hull and deck plates which drives life extension decisions on floating assets. The reviews focussed on structural health issue such as corrosion wastage on floating facilities hull and deck plates. Thus, data gathering, their interpretations and managements were found useful towards life extension project delivery. It was observed that the number of new floating production storage and offloading (FPSO) and single point mooring calm buoy (SPM) built for support of various oilfield production and export operations will continue to increase while the existing ones is near the end or have exceeded the end of their design operational life. The study shows that floating facilities undergo four stages of degradation viz: initial, maturity, ageing and terminal stages. The menace of corrosion wastages was observed in this study as one of the long standing challenges encountered by FPSO and SPM calm buoy hulls and deck plates. It was observed that previous studies relied on data gathered from trading/shuttle tankers to carry out this study on FPSOs, while others rely on data obtained from laboratory in corrosion coupon. While FPSOs are stationed in an oilfield and hardly relocates during their service life, trading tankers moves from one region of the ocean to the other, thus exposing them to various sea state and varying corrosion conditions. On the other hand, data obtained from corrosion coupon in laboratory is under control while that obtained from an FPSO operational location is in real marine environment and represents the real state of corrosion wastages. Thus, corrosion data obtained from an FPSO/SPM calm buoy operational location in marine environment represents a more realistic data in marine corrosion wastage case studies. Therefore, it was observed that more case studies should be carried out on different floating assets in the areas of corrosion wastages. More so, the validity of data used for life extension studies were observed as 18 months by some class society, while some oil majors allow data taken within 5 years before the end of life, but such data must be subjected to review by a subject matter expert. Similarly, minimum of 5 gauging points per area of 1m2 deck plate strake or zone is required unless where there is marginal corrosion wastage that would require 8 gauging points. Deck ; Buoy ; Hull ; Corrosion ; Life extension ; Service life ; Mooring ; Submarine pipeline Corrosion Behavior and Inhibition ; Structural Integrity and Reliability Analysis ; Material Selection and Properties
Authors: Desirie Ogdamin | Elmar Villota | Wendy Mateo | Theody B. Sayco | Sylvester A. Badua
Source: CLSU International Journal of Science and Technology (article, 2025-12-31)
Field: Chemistry — Inorganic Chemistry

Effects of Different Smoking Materials on the Microbiological, Polycyclic Aromatic Hydrocarbons, and Sensory Characteristics of Milkfish (Chanos chanos) Smoked fish is a staple in many traditional dishes, yet awareness of its potential health risks, particularly concerning polycyclic aromatic hydrocarbons (PAHs) and microbial contamination, remains limited, particularly in rural communities of Capiz, Philippines. To date, there is insufficient information on polycyclic aromatic hydrocarbon (PAH) levels associated with different types of wood used in smoking. This study aimed to evaluate the effects of three smoking materials—coconut (Cocos nucifera) shell (CCS), mango (Mangifera indica) wood shavings (MWS), and santol (Sandoricum koetjape) wood shavings (SWS)—on the sensory attributes, PAH levels, and microbial load of smoked milkfish (Chanos chanos). Eighteen fish samples were smoked per treatment, with nine randomly selected for PAH and microbial analyses. Results showed that PAH levels in all samples were below the detection limit (&lt;10 µg/kg), confirming compliance with food safety standards. Microbial analysis revealed significantly lower counts in CCS-smoked fish (370 CFU/g) compared to MWS and SWS smoked samples, which exceeded 6,500 CFU/g but remained well below the Food and Drug Administration (FDA) maximum allowable limit of 5 × 10⁵ CFU/g. Sensory evaluation indicated a strong preference for MWS-smoked fish due to its aroma, taste, and mouthfeel. These findings highlight the potential of CCS for reducing microbial contamination, while MWS enhances sensory attributes, making it suitable for premium smoked fish products. This study provides insights into optimizing smoking processes to ensure food safety and improve consumer acceptability of smoked milkfish. Milkfish ; Fish <Actinopterygii> ; Smoked fish ; Fish products ; Polycyclic aromatic hydrocarbon ; Food safety ; Food contaminant Coconut Research and Applications ; Meat and Animal Product Quality ; Fermentation and Sensory Analysis
Authors: Panpan Guo | Zhuangzhuang Qiu
Source: Frontiers in Sustainable Food Systems (article, 2025-10-29)
Field: Chemistry — Analytical Chemistry

Effect of different particle-sized lotus leaf powder dried by different conditions on shelf-life of green wheat leaf beverage Introduction This study aimed to investigate the effect of antioxidant activities of lotus leaf powder (LLP) with different particle sizes on the shelf-life of green wheat leaf beverage (GWLB), so as to provide a theoretical basis for improving the quality and extending the shelf-life of GWLB This study aimed to investigate the effect of antioxidant activities of lotus leaf powder (LLP) with different particle sizes on the shelf-life of green wheat leaf beverage (GWLB), so as to provide a theoretical basis for improving the quality and extending the shelf-life of GWLB. Methods Oven-dried LLP was used as the experimental material, and different concentrations (0%, 0.25%, 0.5%, and 1%) of LLP were added to GWLB respectively. The total phenolic compounds (TPCs), 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, ferrous iron chelating activity (FICA), and ferric reducing power ability (FRPA) of LLP dried at 60 °C were determined. Meanwhile, the pH value, total bacterial count, color indicators (lightness, yellowness, redness), soluble solids content, suspension stability, and antioxidant activity of GWLB with different LLP additions were monitored during storage. Results Among all LLP treatments, the LLP dried at 60 °C had the highest levels of TPCs (7.57 g/100 g), DPPH radical scavenging activity (18.76–44.69%), FICA (57.26–79.03%), and FRPA (0.76–1.33 O.D.). After adding LLP to GWLB, the antioxidant capacity of GWLB was enhanced, the pH value was lower, and the number of microorganisms was reduced. Specifically, the pH value of GWLB with 1% T1LLPS (a type of LLP) added was 7.26, while that of GWLB without T1LLPS added was 7.69. On the third day of storage, the total bacterial count of GWLB without T1LLPS added was 2.11 Log CFU/mL, whereas that of GWLB with 1% T1LLPS added was less than 2.00 Log CFU/mL. In addition, the lightness, yellowness values, and soluble solids contents of GWLB increased after LLP addition, while the redness values and suspension stability decreased. During storage, the GWLB with 1% LLP added showed the highest antioxidant activity among all treatment groups. Discussion The addition of LLP can effectively improve the antioxidant capacity of GWLB, inhibit the growth of microorganisms, and adjust the physical and chemical properties of GWLB (such as pH value, color, and soluble solids content). Among all concentrations, 1% LLP addition exhibited the best effect, which not only had the highest antioxidant activity during storage but also significantly extended the shelf-life of GWLB. This indicates that LLP has good application potential in the processing and preservation of GWLB. Ferrous ; DPPH ; Ferric ; Antioxidant ; Lotus ; Scavenging Chromatography in Natural Products ; Phytochemicals and Antioxidant Activities ; Food Quality and Safety Studies
Authors: Rajesh Kumar Dewangan | Pankaj Gupta | Samarjit Singh
Source: Research Square (preprint, 2025-07-04)
Field: Materials Science — General Materials Science

Synergistic AHP-TOPSIS and RSM Framework for Multi-Criteria Optimization of Sustainable Hybrid Composite Laminates TOPSIS ; Analytic hierarchy process ; Composite number ; Response surface methodology ; Central composite design ; Computer science ; Mathematical optimization ; Materials science ; Mathematics ; Composite material ; Operations research ; Machine learning Material Properties and Applications
Authors: Justyna Pinkos | Adam K. Puszkarz | J. Rutkowski | Martyna Borowińska
Source: Materials (article, 2025-11-12)
Field: Materials Science — Polymers and Plastics

The Influence of the Upholstery Textiles Structure on Their Functional Properties This article evaluates selected performance parameters of commercial upholstery textiles that impact on user comfort and safety. The study included four commercial multilayer textiles: RIBCORD bright, RIBCORD dark, OREO, and ILIAS, each with varying morphology (thickness, number of layers, porosity, and raw material composition). Statistical analysis of the textile microstructure was conducted using high-resolution micro-computed tomography (micro-CT). The performance parameters of the textiles were determined based on tests of air permeability, tensile strength, abrasion and pilling resistance, and flammability. The significantly different results obtained for all performance parameters of the tested textiles are justified by the results of the microstructure analysis. A clear correlation was observed between air permeability and the porosity of the inner layer of all tested textiles. Tensile strength tests revealed significant mechanical anisotropy in all textiles. Abrasion and pilling resistance tests demonstrated very good properties for RIBCORD bright, RIBCORD dark, and OREO. Flammability tests have shown that OREO is a flame-retardant textile material. Microstructure ; Ultimate tensile strength ; Air permeability specific surface ; Textile ; Abrasion (mechanical) ; Porosity ; Tensile testing Flame retardant materials and properties ; Textile materials and evaluations ; Fire dynamics and safety research
Authors: Karol Falandys | Krzysztof Kurc | Jacek S. Tutak
Source: Materials (article, 2025-05-20)
Field: Materials Science — Materials Chemistry

Application and Empirical Verification of the Archard Model in the Deburring Process This paper presents a method of numerical simulation, using the finite element method for the brush wear process during the deburring of the edge of the workpiece. The work was carried out in the Ansys Workbench environment in the Ansys Mechanical module. This study reviews the effect of selected parameters of the technological process (rotational speed and depth of tool penetration into the workpiece) on the abrasive wear of the tool. The discussion examines the subject of the 3D or 2D approach in terms of results, quality, and time of computation. A series of numerical analyses (2D) were carried out to investigate the effect of process parameters on the wear rate and, consequently, on the tool life. Obtained results on the quantity of worn material were critically assessed in relation to real-world industrial conditions. The difference between the numerical model and the test performed in the industry environment varied from 3 to 46% and was discussed in this paper. Additionally, to improve the quality of the results in Ansys, an APDL script with adaptative mesh was prepared. The article contains a discussion on the possibility of numerical model development. Workbench ; Abrasive ; Finite element method ; Mechanical engineering ; Process (computing) ; Engineering ; Computation ; Enhanced Data Rates for GSM Evolution ; Structural engineering ; Engineering drawing ; Computer science ; Algorithm Metal Alloys Wear and Properties ; Advanced machining processes and optimization ; Tribology and Wear Analysis
Authors: May H. Abdelwahab | Samah S. Abbas
Source: Research Square (preprint, 2025-11-04)
Field: Chemistry — Analytical Chemistry

Green Chromatographic Determination of Antihyperlipidemic in Their Binary Mixture, in Presence of Their Impurities and Degradation Products and Biological Fluids; Lean Six Sigma Application Fenofibrate ; High-performance liquid chromatography ; Impurity ; Citric acid ; Calibration curve ; Degradation (telecommunications) ; Quantitative analysis (chemistry) Analytical Methods in Pharmaceuticals ; Pesticide Residue Analysis and Safety ; Pharmacological Effects and Assays
Authors: Hiroyuki Fujii | Seisyo Sasaki | R. Sawada | Kazumichi KOBAYASHI | Masao Watanabe
Source: Colloids and Surfaces A Physicochemical and Engineering Aspects (article, 2025-12-19)
Field: Materials Science — Materials Chemistry

Unraveling interference contributions to light scattering from concentrated colloids: A numerical study using density expansion In dense colloidal suspensions, far-field interference between electric fields scattered by particles significantly influences light scattering properties. Previous studies using dependent scattering theory (DST), based on the first-order solution of the Foldy-Lax equations, have shown that destructive interference affects the scattering properties via the static structure factor. Meanwhile, the contributions of multiple interference and the relationship between interference and particle correlation remain unclear. We aim to clarify the interference effects and their relationship using a density expansion approach, which allows us to decompose the multiple interference contributions. We calculated the two scattering coefficients using the DST and the expansions with hard-sphere interaction in the volume fraction range up to 25% and the optical wavelength range of 600-1000 nm. Our numerical calculations showed that for particle diameters larger than approximately 300 nm, the second-order expansion for the reduced scattering coefficient agrees well with the DST results. This result reflects the destructive interference induced by the excluded volume between particles. For the scattering coefficient, the third-order expansion agrees with the DST results in the larger-diameter region. This agreement reveals a hidden constructive-interference contribution driven by an effective attractive interaction, even in the absence of any direct attractive force. For smaller diameters, higher-order expansions are necessary to accurately reproduce the DST results, as multiple interference contributions are involved. For the scattering coefficient, odd-order terms of expansion correspond to destructive interference, while even-order terms correspond to constructive interference. In contrast, the correspondence in the reduced scattering coefficient is more complex and depends on both particle diameter and wavelength. Our findings provide fundamental knowledge for developing nanotechnology to evaluate colloidal particle properties non-destructively using scattered light. • Analytic decomposition of interference in light scattering via density expansion. • Calculations of the scattering coefficients using the electromagnetic theory. • Small particle size case enhances the multiple interference in the coefficients. • This decomposition approach unveils hidden constructive interference. • Constructive interference correlates with the effective attraction between particles. Scattering ; Interference (communication) ; Light scattering ; Wavelength ; Particle (ecology) ; Scattering theory ; Range (aeronautics) ; Static light scattering Material Dynamics and Properties ; Electrostatics and Colloid Interactions ; Coagulation and Flocculation Studies
Authors: Chenzi Guo
Source: Light Science & Applications (article, 2025-07-02)
Field: Materials Science — Electronic, Optical and Magnetic Materials

Light People: Prof. Lei Zhou spoke about metasurfaces Prof. Lei Zhou is a leading figure in metamaterials and metasurfaces. His pioneering works on developing gradient-index metasurfaces and utilizing ultrathin anisotropic materials for polarization control have co-shaped the foundational framework of metasurfaces. In addition to his research achievements, Prof. Zhou serves as Vice President of Fudan University - one of China's most prominent universities - and was recently appointed as the Head of Fudan's College of Future Information Technology. With such roles, he's been deeply involved in many strategic initiatives and policies that contribute to the well-being of the scientific community. To shed light on the above, Light: Science & Applications invited Prof. Lei Zhou for an in-depth conversation. Conversation ; Metamaterial ; China ; Polarization (electrochemistry) ; Engineering physics ; Computer science ; Physics ; Sociology ; Nanotechnology ; Optics ; Political science ; Chemistry ; Materials science ; Law Metamaterials and Metasurfaces Applications ; Plasmonic and Surface Plasmon Research ; Advanced Antenna and Metasurface Technologies
Authors: Jiayu Zhang | Jason E. Hein
Source: Reaction Chemistry & Engineering (article, 2025-12-26)
Field: Chemistry — Analytical Chemistry

Improving the univariate calibration approach with Bayesian modeling for IR reaction monitoring A workflow based on Bayesian methods for improving the univariate calibration approach for reaction monitoring using Infrared (IR) spectroscopy. Univariate ; Calibration ; Bayesian probability ; Workflow ; Bayesian inference Spectroscopy and Chemometric Analyses ; Fault Detection and Control Systems ; Spectroscopy Techniques in Biomedical and Chemical Research
Authors: König, Kristian | Kaspar, Jerome | Scholz, Johannes | Fleischer, Jürgen | Vielhaber, Michael
Source: Repository KITopen (Karlsruhe Institute of Technology) (article, 2025-01-01)
Field: Materials Science — Materials Chemistry

The advanced TRIZ method for a sustainable lightweight design TRIZ ; Field (mathematics) ; Work (physics) ; Production (economics) Material Selection and Properties ; Sustainable Supply Chain Management ; Manufacturing Process and Optimization
Authors: Chainarong Srivabut | Pruttipong Pantamanatsopa | Chatree Homkhiew | W. Boonchouytan | Surasit Rawangwong
Source: Bulletin of the Transilvania University of Brasov Series II Forestry • Wood Industry • Agricultural Food Engineering (article, 2025-12-19)
Field: Materials Science — Polymers and Plastics

Mechanical, Physical, and Sound Absorption Properties of Wood-Based Composites Made from Krajood (Lepironia articulata) Using Isocyanate as Binder This study investigates the mechanical, physical, acoustic, andmorphological properties of composites prepared from Krajood (Lepironiaarticulata) fibers bonded with isocyanate binder. The wood-based werefabricated with different fiber lengths (10 mm, 20 mm, and mixed lengths)and varied fiber-to-binder ratios of 80:20, 85:15, and 90:10 wt% using acompression molding process. The results showed that tensile strength andsurface hardness significantly improved in composites with mixed fiberlengths, especially at an optimized fiber-to-binder ratio of 85:15 wt%.Additionally, water absorption and thickness swelling tests showed thathigher binder content and shorter fibers effectively reduced moisture uptake,enhancing dimensional stability. Composites containing mixed fiber lengthsshowed the lowest water uptake and swelling values due to improved fiberpacking density. Sound absorption analysis revealed superior acousticperformance at mid-range frequencies (500–2000 Hz) for composites with 20mm fibers and mixed fibers, attributed to increased internal porosity and fiberscattering. Optical microscopy analysis demonstrated that composites withmixed fiber lengths displayed the most uniform and compact surfacestructures, with minimal fiber pull-out and porosity, suggesting enhancedfiber dispersion and matrix encapsulation. These findings highlight the criticalrole of fiber length distribution and binder ratio in tailoring compositeproperties. The optimized Krajood composites demonstrated a favorablebalance between mechanical integrity, dimensional stability, and acousticefficiency, highlighting their potential for sustainable applications such as ecofriendlyinterior components, elderly-supportive furniture, and acousticpanels. Ultimate tensile strength ; Fiber ; Swelling ; Absorption of water ; Porosity ; Composite number ; Isocyanate ; Dispersion (optics) Natural Fiber Reinforced Composites ; Wood Treatment and Properties ; Bamboo properties and applications
Authors: Wang Yihong
Source: Theory and Practice of Science and Technology (article, 2025-01-01)
Field: Materials Science — Electronic, Optical and Magnetic Materials

3D-Printed Graphene-based Composite Microwave Absorber To address the limitations of conventional absorbers, such as low efficiency, narrow bandwidth, and complex fabrication, this study investigates graphene composites for high-performance microwave absorbers. Building on existing structures (e.g., strip and sandwiched types), we propose an innovative 3D printing approach for graphene absorber manufacturing. This technique enhances absorption efficiency and bandwidth by precisely controlling 2D patterns and 3D structures, while simultaneously simplifying production and reducing material waste, offering a novel strategy for customizable absorber design. Microwave ; Composite number ; Graphene ; Bandwidth (computing) ; Absorption (acoustics) ; Finite element method Electromagnetic wave absorption materials ; Metamaterials and Metasurfaces Applications ; Advanced Antenna and Metasurface Technologies
Authors: Guiyang Cai | Zhipeng Hou | Peng Li | Wei Sun | Jing Guo | Liqun Yang | Qing Yang
Source: Frontiers in Materials (article, 2025-12-19)
Field: Materials Science — Biomaterials

Correction: More precise control of the in vitro enzymatic degradation via ternary self-blending of high/medium/low molecular weight Poly(trimethylene carbonate) Correction on: Cai G, Hou Z, Li P, Sun W, Guo J, Yang L and Yang Q (2021) More Precise Control of the In Vitro Enzymatic Degradation via Ternary Self-Blending of High/Medium/Low Molecular Weight Poly(trimethylene carbonate). Front. Mater. 8:733535. doi: 10.3389/fmats.2021.733535There was a mistake in figure 2 as published. [The degradation images at week 1 and week 2 for the PTMC152 group and the PTMC334 group had been inadvertently duplicated. This error occurred due to inadvertent selection of the wrong image file during submission.]. The corrected figure 2 appears below. Degradation (telecommunications) ; Ternary operation ; In vitro ; Mistake ; Enzyme ; Selection (genetic algorithm) ; Ternary complex biodegradable polymer synthesis and properties ; Polymer-Based Agricultural Enhancements ; Electrospun Nanofibers in Biomedical Applications
Authors: Yaping Ge | Jianbin Du | Haichao Cheng | Wei Wang
Source: Frontiers in Medicine (article, 2025-08-29)
Field: Materials Science — Materials Chemistry

Assessment of renal allograft function using amide proton transfer imaging APT imaging is a promising technique for non-invasive functional assessment of renal allografts. Medullary cavity ; Intraclass correlation ; Renal medulla ; Renal function ; Transplantation ; Urology ; Medicine ; Renal cortex ; Mann–Whitney U test ; Kappa ; Kidney ; Receiver operating characteristic ; Magnetic resonance imaging ; Kidney transplantation ; Nuclear medicine ; Internal medicine ; Radiology ; Mathematics Lanthanide and Transition Metal Complexes ; Advanced MRI Techniques and Applications ; Medical Imaging and Pathology Studies