bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhancing the structural and optoelectronic properties of carboxymethyl cellulose sodium filled with ZnO/GO and CuO/GO nanocomposites for antimicrobial packaging applications
Authors: Badry Rania , Sabry Noha M. , Ibrahim Medhat A. 
Published: December 2024

AbstractOne of the biggest challenges in food packaging is the creation of sustainable and eco-friendly packaging materials to shield foods from ultraviolet (UV) photochemical damage and to preserve the distinctive physical, chemical, and biological characteristics of foods throughout the supply chain. Accordingly, this study focuses on enhancing the UV shielding properties and biological activity of carboxylmethyl cellulose sodium (CMC) through modifications using zinc oxide (ZnO), copper oxide (CuO), and graphene oxide (GO) using the solution casting technique. The hybrid nanocomposites were characterized by fourier-transform infrared (FTIR) spectrophotometer, ultraviolet-visible (UV-Vis) spectrophotometer, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), and x-ray diffraction (XRD). Significant interactions between CMC and the metal oxide/GO nanocomposites were revealed by FTIR analysis, which reflects the formation of hydrogen bonding between CMC and the nanocomposites. XRD confirmed the functionalization of CMC with ZnO/GO and CuO/GO nanocomposites. Additionally, the CMC film showed a decrease in the optical bandgap from 5.53 to 3.43 eV with improved UV shielding capacity. Moreover, the composite films had excellent refractive index and optical conductivity values of 1.97 and 1.56 × 1010 Ω cm− 1, respectively. SEM and EDX analysis confirmed the formation of ZnO/GO and CuO/GO within the CMC matrix. Thus, dedicates that the CMC nanocomposites have promising applications in packaging materials. These results were confirmed by the quantum mechanical calculations utilizing density functional theory (DFT). Total dipole moment (TDM), frontier molecular orbitals (FMOs), chemical reactivity descriptors, and molecular electrostatic potential (MESP) maps were all studied using the B3LYP/LanL2DZ model. The TDM and FMO investigations revealed that the CMC/CuO/GO model has the highest TDM (84.031 Debye) and the smallest band gap energy (0.118 eV). Moreover, CMC’s reactivity increased after CuO/GO nanocomposites integration, as demonstrated by MESP mapping. Finally, the antibacterial activity of pure CMC, CMC/ZnO/GO, and CMC/CuO/GO nanocomposite films was evaluated against Staphylococcus aureus and Escherichia coli. The zones of inhibition data showed that both CMC/ZnO/GO and CMC/CuO/GO exhibited higher antibacterial activity than CMC alone, particularly against S. aureus. The inhibition zones for CMC/ZnO/GO and CMC/CuO/GO against S. aureus were 16 mm and 14 mm, respectively, suggesting enhanced susceptibility of S. aureus compared to E. coli. These results highlight the significant potential of ZnO and CuO NPs in improving the antimicrobial efficacy of CMC nanocomposites.
Accelerated decoding method in fractal image coding
Authors: Wang Qiang 
Published: December 2024

AbstractTo accelerate the fractal decoding process, a minimum domain block set (MDBS)‐based fast fractal decoding method is proposed here. In fractal encoding process, it is found that there exists a MDBS which can provide the best‐matched domain blocks for all range blocks. In the decoding process, MDBS is first identified before the first iteration. Then, only the range blocks inside MDBS are reconstructed in each of the first to penultimate iterations, and the computations of reconstructing the remaining range blocks outside MDBS can be saved to speedup the decoding process. Finally, all range blocks are reconstructed to obtain the decoded image in the last iteration. Experimental results show that about 5%–17% of total computations in decoding process can be saved.
Improved non‐cascaded continuous‐set model‐free predictive control scheme for PMSM drives
Authors: Xu Bowen , Wu Qiyi , Ma Jien , Liu Xing , Fang Youtong 
Published: December 2024

AbstractThis article presents an improved multiple‐step model‐free predictive control (MS‐MFPC) method for permanent magnet synchronous motor (PMSM) drives. Specifically, a reduced‐order MS‐MFPC based on an ultra‐local model, which employs only the input and output of the plant without addressing any motor parameters, is developed to enhance the robustness and reliability of the non‐cascaded PMSM system in the presence of parametric uncertainties. Meanwhile, the decoupled form of algebraic ultra‐local model is derived to extend the prediction horizon to multiple steps without increasing the computational burden. Besides, in order to improve the dynamic performance, an online adaptive modification approach is embedded into this suggested design to enhance the cost function calculation for the first time. Compared with the conventional continuous control set‐model predictive control (CCS‐MPC) method, our development not only achieves the smaller overshoot, settling time and steady‐state error, but also attenuates the inherent issue of system uncertainties in widely existing industrial application. Finally, the proposed MS‐MFPC methodology is experimentally assessed for a PMSM test bench, where steady‐state and transient‐state performance tests confirm the interest of the proposal.
A general polarimetric model for transiting and nontransiting ringed exoplanets
Authors: Veenstra Allard K. , Zuluaga Jorge I. , Alvarado-Montes Jaime A. , Sucerquia Mario , Stam Daphne M. 
Published: December 2024

Context. The detection and characterization of exorings (rings around exoplanets) will help us to better understand the origin and evolution of planetary rings in the Solar System and beyond. However, exorings are still elusive, and new and clever methods for identifying them need to be developed and tested.
Aims. We explore the potential of polarimetry as a tool for discovering and characterizing exorings.
Methods. For this purpose, we improved the general publicly available photometric code Pryngles by adding the results of radiative transfer calculations with an adding-doubling algorithm that fully includes polarization. With this improved code, we computed the total and polarized fluxes and the degree of polarization of model gas giant planets with or without rings. Additionally, we demonstrate the versatility of our code by predicting the polarimetric signal of the puffed-up planet HIP 41378 f as if it had an exoring.
Results. Spatially unresolved dusty rings can significantly modify the flux and polarization signals of the light that is reflected by a gas giant exoplanet along its orbit. Rings are expected to have a low polarization signal, but they will decrease the degree of polarization of reflected light when they cast a shadow on the planet and/or block part of the planet. The most diagnostic feature of a ring occurs around the ring-plane crossings when sharp changes in the flux and degree of polarization curves are predicted by our model. When we applied our methods to HIP 41378 f, we found that if it is surrounded by a ring, noticeable changes in the degree of polarization of reflected light will arise. Although the reflected light on the planet cannot yet be directly imaged, the addition of polarimetry to future observations would aid in the characterization of the system.
Modélisation du glissement du barrage de Mirgenbach
Authors: Kham Marc , Alves Fernandes Vinicius , Fry Jean-Jacques , Boutonnier Luc 
Published: December 2024

Le glissement du barrage de Mirgenbach qui s’est produit en 1982 est un cas d’étude suffisamment documenté pour être utilisé comme cas de validation de toute analyse numérique de la construction d’un barrage en argile. L’objectif d’une telle validation est de justifier que la méthodologie d’analyse est capable de prédire la rupture de cet ouvrage. Un tel exercice de validation est présenté avec le logiciel d’EDF, Code_Aster (Code_Aster, 2001) et le modèle de comportement quasi-saturé proposé par Boutonnier. L’ANR a financé le projet Terredurable pour développer un cadre d’analyse des sols fins afin d’approfondir et améliorer leur mise en place. Les développements de ce projet s’appuient sur ce modèle quasi-saturé prenant en compte l’air occlus après compactage, dont le domaine d’application est le côté humide de la courbe Proctor (Boutonnier et al., 2015), qui correspond exactement à la pratique de la construction des digues et des barrages. La qualification du logiciel Code_Aster s’est donc inspirée de ce modèle pour justifier la modélisation de la construction des barrages en terre. Cette communication rapporte les principes principaux du modèle quasi-saturé, détaille les hypothèses de modélisation, analyse les résultats et discute leur représentativité.
A modular and extensible CHARMM-compatible model for all-atom simulation of polypeptoids
Authors: Berlaga Alex , Torkelson Kaylyn , Seal Aniruddha , Pfaendtner Jim , Ferguson Andrew L. 
Published: December 2024

Peptoids (N-substituted glycines) are a class of sequence-defined synthetic peptidomimetic polymers with applications including drug delivery, catalysis, and biomimicry. Classical molecular simulations have been used to predict and understand the conformational dynamics of single chains and their self-assembly into morphologies including sheets, tubes, spheres, and fibrils. The CGenFF-NTOID model based on the CHARMM General Force Field has demonstrated success in accurate all-atom molecular modeling of peptoid structure and thermodynamics. Extension of this force field to new peptoid side chains has historically required reparameterization of side chain bonded interactions against ab initio data. This fitting protocol improves the accuracy of the force field but is also burdensome and precludes modular extensibility of the model to arbitrary peptoid sequences. In this work, we develop and demonstrate a Modular Side Chain CGenFF-NTOID (MoSiC-CGenFF-NTOID) as an extension of CGenFF-NTOID employing a modular decomposition of the peptoid backbone and side chain parameterizations, wherein arbitrary side chains within the large family of substituted methyl groups (i.e., –CH3, –CH2R, –CHRR′, and –CRR′R″) are directly ported from CGenFF. We validate this approach against ab initio calculations and experimental data to develop a MoSiC-CGenFF-NTOID model for all 20 natural amino acid side chains along with 13 commonly used synthetic side chains and present an extensible paradigm to efficiently determine whether a novel side chain can be directly incorporated into the model or whether refitting of the CGenFF parameters is warranted. We make the model freely available to the community along with a tool to perform automated initial structure generation.
Lime-based historic plasters characterization: mineralogical composition and binder to aggregate ratio
Authors: Krejsová J , Scheinherrová L , Fořt J , Pokorný J , Rovnaníková P 
Published: December 2024

Abstract
Preserving historic buildings requires renovation using compatible plasters that closely resemble the original ones. However, achieving this likeness requires a thorough characterization of the original plaster. This article explores the challenges of characterizing historic lime-based plasters from two architecturally interesting buildings in the Czech Republic dating back to the first half of the 20th century. Key issues include the determination of the binder-to-aggregate ratio, the fine aggregate particle size distribution, the mineralogical composition, and the degree of lime plaster carbonation. Experimental methods include X-ray diffraction analysis (XRD), pH-value determination, hydrochloric acid dissolution of binder components, sieve analysis, thermogravimetric analysis (TG), and differential scanning calorimetry (DSC). The tested plasters are compared, and the effectiveness of various approaches is evaluated. The binder-to-aggregate ratios are approximately 1:5. The plaster from one of the buildings was almost pure (lime binder + aggregate), while the second one contained other components, such as calcium silicate hydrates, gypsum, and magnesium phases.
The mold infestation of buildings classified by Kohonen Self-Organizing Maps with boundaries determined by Ward clustering using multidimensional data from gas sensors
Authors: Łagód G , Piłat-Rożek M , Majerek D , Łazuka E , Guz Ł , Kočí V , Černý R 
Published: December 2024

Abstract
Mold infestation of buildings occurs when the moisture content of partitions increases, and is a significant problem in building operation. This problem is substantial in terms of architecture and building construction, residents’ health and aesthetic reasons. There are numerous methods of evaluating mold infestation, among them important ones include traditional biological, molecular microbiological, and chemical techniques. One of the newer methods is application of gas sensors arrays, which form an electronic nose when combined with a properly chosen data analysis algorithm. The critical issue connected with correct functioning of an electronic nose is selection of the appropriate mathematical model enabling interpretation and visualization of the results – multidimensional signals originating from sensors array. In this work a Kohonen Self-Organizing-Map with hexagonal topology was used for presenting the similarity between measurements of buildings that are in different stages of mold infestation, as well as reference sample of clean air and decayed timber. On the two-dimensional visualization of Kohonen map, the boundaries created by applying the hierarchical Ward clustering method were superimposed. This procedure allowed showing which observation would be assigned to which clusters connected with level of mold infestation.
Selected properties of wall material based on hemp shives and clay modified with polysaccharide-based polymers
Authors: Brzyski P , Wankiewicz J , Suchorab Z , Medveď I 
Published: December 2024

Abstract
One of the assumptions of sustainable development in construction is the use of low-processed materials. A material with a low level of embodied energy is clay. It is mainly used in fired form as building ceramics, but alternatively it can be used in raw form, e.g. in the form of plasters or unfired bricks. Clay can be modified with ingredients of plant origin, e.g. hemp shives. Porous plant fillers are used, among others, to improve the thermal insulation parameters of clay-based wall materials. The disadvantage of raw clay-based materials is their lack of water resistance. This parameter can be improved by using admixtures/additives with hydraulic, hydrophobic properties or those ensuring chemical bonding of clay. In this work, a composite based on clay and hemp shives with a fine fraction was developed for use in walls, e.g. in the form of blocks and a rammed monolith. The density, thermal conductivity, water resistance and capillary rise of three mixtures were examined. A polysaccharide-based polymers (xanthan gum and guar gum) were used as an admixture to improve water resistance. The addition of xanthan gum in the amount of 1% reduced the composite’s ability to capillary water uptake by 46% compared to the unmodified composite. Guar gum turned out to be an ineffective admixture as it deteriorated the properties of the clay composite. In the case of this admixture, in further studies, increasing the water content should be considered to improve the viscosity of the mixture, because it was noticeably too dry.
Comparison of three methodologies for evaluating the antifungal activity of cinnamaldehyde
Authors: Kobetičová K , Vrzáň J , Vidholdová Z , Fraňková A 
Published: December 2024

Abstract
In this study, methodologies for performing agar tests for effectiveness against moulds were compared. The substance under investigation was cinnamaldehyde. This substance is commonly used as a fungicide in agriculture to protect the root system of plants or as an insecticide in the fight against mosquitoes. Its effect against mould growth of building materials has not yet been studied. Cinnamaldehyde was tested in three ways: A) the substance was mixed directly into the agar, B) the substance was spread on the surface of the sterile agar, and C) the substance was applied to filter paper above the sterile agar. A culture of aerial fungi was spread on the agar. Petri dishes with agar were then incubated for 7 days in a thermostat under controlled conditions. The results indicate that method B is not suitable because the substance aggregates on the surface of the agar. The effectiveness of methods A and C is comparable.
Design of concrete mixtures with calcined brick soil
Authors: Pommer V. , Šádková K. , Sellnerová K. , Vejmelková E. , Koňáková D. 
Published: December 2024

Abstract
Calcined clays have become one of the most researched themes in the field of cement replacement in recent years. However, it is not only pure kaolinite that can be used for thermal activation. There are other options such as the use of lower-grade clays. The brick soils can be considered as a representative of these lower-grade clays. The studied soil had a lower content of clay minerals (40%) and a higher content of other impurities, mainly quartz (18%) and calcite (43%). It also contained a minor amount of gypsum (4%). After thermal calcination at 650 °C, 37% of the amorphous matter was formed, which was assumed to be a reactive part. Based on this assumption, the mixture compositions, more precisely the substitutions in the concrete mixture were made using so-called rational design. The amount of amorphous matter was used to replace cement, while the amount of crystalline phases substituted a fine aggregate. Within this logic, 5 mixtures with a replacement level of up to 25% were designed. However, as the calcined brick soil was somewhat finer, a plasticizing admixture had to be used to achieve comparable workability without an immense increase in water dosage. The best compressive strength was obtained in the case of a mixture with the 10% replacement. Specifically, it reached 69 MPa, which was by 14% higher value than the reference. Nevertheless, also the mixture with 25% showed applicable results. Its compressive strength was 55 MPa, by 11% lower value compared to the reference mixture.
The ecological aspect of sustainable development: modelling results using the Environmental Performance Index
Authors: Hayda Y I , Haida T Y , Dluhopolskyi O V , Kozlovskyi S V , Nikolenko L M , Cherniatynsky T V 
Published: December 2024

Abstract
The demand for a “clean, comfortable, and safe environment” as a public good has surged globally, prompting stricter environmental regulations in many countries. This paper examines the impact of these regulations on environmental welfare, using EPI. The research employs the SARIMAX model to forecast future EPI trends, emphasizing the need for continuous evaluation of individual environmental policy criteria to ensure accurate predictions and effective policy interventions. Regression analysis reveals that key predictors of environmental well-being in the Global West include climate change mitigation, ecosystem preservation, biodiversity conservation, and water pollution reduction. In African countries, climate change remains crucial, alongside biodiversity conservation and combating deforestation.
The Role of Staycation Tourism in Mitigating the Environmental Impact of Recreation in Ukraine
Authors: Martseniuk Larysa , Kryvoberets Maryna , Melnychuk Svitlana , Lihostaiev Viacheslav , Dobrovolskyi Andrii 
Published: December 2024

Abstract
The study aims to provide an analytical review of the advantages and disadvantages of staycation tourism and to form practical recommendations for its development in Ukraine. The volumes of tourist arrivals were analyzed, and it was found that the share of tourism accounts for more than 5% of global greenhouse gas emissions, and 90% is the use of transport for tourist needs. By 2030, CO2 emissions from tourism are expected to increase by 25% compared to 2016, i.e. from 1,597 million tons to 1,998 million tons. Tourists visiting specific advertised powers result in 95% of the world’s tourists visiting only 5% of a country’s territory. This creates a substantial anthropogenic load on a certain ecosystem of popular tourist destinations. The potential advantages and disadvantages of Staycation tourism for stakeholders are analyzed, and recommendations are offered to overcome the negative aspects of this type of tourism. In Ukraine, supporting domestic tourism is necessary, which provides both safeties for tourists and contributes to reducing transport emissions and environmental impact.
Reducing emissions and decreasing petroleum dependency by utilizing electric municipal transportation in Ukraine
Authors: Honcharova Iryna , Beloev Ivan , Beloeva Silvia , Iskiv Roman , Shyshov Serhii 
Published: December 2024

Abstract
Currently, the entire humanity faces the problem of depletion of oil resources and emissions into the atmosphere. The presented study demonstrates one of the ways to reduce the impact on the environment by creating and developing municipal dual-purpose electric transport: both for the transportation of passengers and the delivery of consumer goods. Since currently available vehicles delivering consumer goods are used extremely inefficiently, and municipal passenger transportation in many communities of Ukraine is not carried out or is carried out on extremely limited routes, the search for solutions to these problems should be accompanied by solving environmental problems that arise or may arise in the process of solving. The study revealed that with three-time delivery of consumer goods, according to the most conservative estimates, 1,719,900 kg of exhaust gases are emitted into the atmosphere, and gasoline is consumed for the delivery, for the production of which 23,641 barrels of oil are extracted. Moreover, the carried-out deliveries of consumer goods do not guarantee a high quality of life for the population. The proposed innovative solutions to the problem contain not only technological, technical, and economic positive effects but also have several positive social components. The desire of society to increase the level of civilizational benefits for all its members is positive and inevitable, but at the same time, the damage to the environment should be minimized.
The Influence of Analysis of Choice of Shuttle Transportation Modes in The Province of The Gunung Mas Travel Fleet Route Ruteng-Ende City
Authors: Caling Claudius Lippershey B. , Valdoni Sandi Patrisius , Jeckson Fireflies Aurel , Gondia Melinda 
Published: December 2024

Abstract
This study aims to analyze the selection of transportation modes of shuttle transportation within the province with the Ruteng route of Manggarai Regency to Ende City, Ende Regency. This research to assess the sustainability of future transportation. The method used in this research is quantitative descriptive where this study will examine the characteristics of transportation mode voters and also test the influence of the variables that are used as a reference in choosing the mode of transportation of the Gunung Mas travel fleet. In this study, the number of samples used as a reference in statistical calculations was 50 samples. The results of this study, it was found that as many as 52% chose because of safety and comfort, 18% chose because of ticket prices, 16% because they were delivered directly to their destination (door to door), 10% because of travel time, and as many as 4 due to the frequency of departure which is 24 hours. Variable X4 (Delivered Directly to the Destination/Door to door) with T Count 2.077 > 2.010 (T Table) and significance value 0.043 < 0.05 then factor X4 has a significant effect on factor Y. Variable X5 (Safety and Comfort) has a calculated T value > T table (3.118 > 2.010) and a Significance value of 0.03 < 0.05, so it can be concluded that variable X5 has a significant effect on the choice of transportation mode.