bluuebunny/crossref_metadata_2025 huggingface dataset:
A Study of Localization Techniques Approach an In- Depth of Wireless Sensor Networks
Authors: Mythili Dr. A. , Sangeetha Ms. K. , Maheswari Ms. S. Uma , Amuthan Mr. K. , Sachithanantham Dr. N. C.
Published: January 2025

While fundamental communication in wireless networks relies on time synchronization, it also enables motion, location, and proximity sensing. Four features—time spent sending and receiving, accessing and distributing—define the synchronization challenge. Three modern synchronization strategies are presented: sensor networks' broadcast and temporal synchronization protocols and the Flooding Synchronize Time Protocol. In addition, industrial examples and security concerns are discussed. This study of 32 survey paper articles investigates numerous existing techniques, protocols, and crucial temporal aspects for achieving accurate coordination in a sensor network. An all-node method, a diffusion-based strategy, and group sync techniques are application-specific solutions that strive to provide network-wide synchronization. Traditional time synchronization protocols like RBS and TPSN are also available. A new kind of scalable, topologically independent, fast-converging, energy-efficient, less- latent, and application-dependent system is needed, and this study will examine the most popular current time synchronization methods to bring attention to this requirement. An approach to secure time synchronization under dangerous conditions. This survey's various examined criteria provide a solid foundation for evaluating novel and present synchronization strategies.
The Overall Appearance of the Wall Paintings of Braj on the Journey of Religion:
Authors: Sahu Sunil Kumar , Ghosh Dr. Ramkrishna
Published: January 2025

The wall paintings of Braj, a culturally rich region in Uttar Pradesh, embody centuries of religious devotion, mythology, and artistic expression. These paintings, found on temple walls, homes, and public spaces, narrate stories of Lord Krishna, who is central to Braj's spiritual heritage. This research explores the religious symbolism, themes, and evolution of Braj’s wall paintings, emphasizing their role in shaping the region's cultural identity and religious journey. Braj, also known as Brajbhumi, holds immense religious significance as the birthplace and playground of Lord Krishna. The wall paintings of
Braj are not just decorative art forms but serve as visual narratives of religious and cultural stories. These paintings have evolved over centuries, reflecting the spiritual journey of the region’s inhabitants and their devotion to Lord Krishna.
MIKROPLASTIK - ŹRÓDŁA, TECHNIKI SEPARACJI I IDENTYFIKACJI
Authors: Trzebiatowska Patrycja , Kadac-Czapska Kornelia , Grembecka Małgorzata
Published: January 2025

The worldwide extensive consumption of plastic materials, due to the low cost of production and their versatility, causes plastic pollution of the environment. It is one of the most difficult and challenging problems on the Earth, affecting the oceans, land, atmosphere and living matter. An emerging aspect is a microplastic pollution, which has become an intensively researched topic among scientists and organizations. Microplastics (MPs) according to the definition are granules, fibers, and fragments of micropollutants of the upper limit of the contractual size is 5 mm. They can have a primary or secondary origin. Primary microplastics are microscopic granules, or pellets purposedly produced for industrial applications. Secondary microplastics are usually generated by the fragmentation and degradation of plastic waste in the environment (e.g. mechanical abrasion, UV radiation, temperature changes, and biodegradation) or during the use of plastic consumption (Figure 2). Microplastics can impact ecosystems by providing water, delivery and air, and further affect human health by inhaling airborne particles or providing contaminated water and food. There can be identified three major harmful aspects of plastics and microplastics. Firstly, plastics exposed to environmental weathering can undergo degradation and break down from macro to smaller particles. MPs may be transported across the globe, as there were found in the Arctic snow or oceans deep. Second, MPs may adsorb and carry toxic chemical substances (persistent organic pollutants) which are harmful to humans and animals. And last but not least, plastics get to the food chain and air and reach humans through various routes. Many works in the literature describe the procedure of sampling, handling, identifying and quantifying MPs from different environments. Before to the actual analysis, MPs samples are often first fractionated by sieving, and solutions of various densities are also used to separate potential microplastics from other contaminants. Subsequently, the samples are purified in etching media to remove any organic contaminants. The MP identification and characterization procedure is a five-step process. It concerns the analysis of the size, shape, color and amount of plastic particles (expressed as the number or mass of particles per volume or mass of the sample) usually done by microscopy. The identification of the polymer is done by chemical characterization using usually spectroscopic (IR and Raman), chromatographic or thermal methods (Figure 4)
WPŁYW ŚRODKÓW KONTRASTUJĄCYCH NA ŚRODOWISKO NATURALNE
Authors: Hildebrandt Magdalena , Nowicki Tomasz
Published: January 2025

WPŁYW ŚRODKÓW KONTRASTUJĄCYCH NA ŚRODOWISKO NATURALNE 203 ABSTRACT Contrast media are used in imaging modalities such as x-rays, ultrasound, computed tomography and magnetic resonance. Contrast media enhance tissues to help make a diagnosis. This review covers information about types of contrast agents, their chemical compositions, routes of administration, imaging applications and biological effects. Scientific studies indicate the presence of contrast agents in wastewater. They are not fully removed in conventional treatment processes and therefore enter surface waters with treated wastewater. At the University Clinical Center in Gdansk, the most frequently used contrast agents are iodinated contrast media, secondly gadolinium contrast agents. Iodinated contrast media are pharmaceuticals which are metabolically stable during their passage through the body and are excreted into wastewater. All transformation products of the iodinated contrast medium iopromide were found in municipal effluents because of their formation during biological wastewater treatment. Four products formed at the end of the transformation pathway were also found in bank filtrate and in groundwater of a wastewater irrigation area. The contrast agents themselves do not carry a risk of toxicity, but it can be predicted from the chemical structure that the transformation products may be toxic and mutagenic. On the other hand, MRI contrast agents can cause histopathological changes. Gadolinium deposition in tissues has been proven. The toxicity of gadolinium is well known. Further research on the toxicity of gadolinium contrast agents is needed to be able to prevent unwanted consequences and produce safe contrast agents. Conventional methods currently used do not ensure high efficiency of removing pharmaceuticals from wastewater, which makes it necessary to introduce advanced methods of treatment. The article presents strategies for removal of the compounds in wastewater-treatment plants
ENZYMATYCZNE I CHEMICZNE MODYFIKACJE FOSFOLIPIDÓW
Authors: Chojnacka Anna , Niezgoda Natalia
Published: January 2025

At the moment, phospholipids are among the most interesting molecules. The possibilities of chemical and enzymatic modifications, while maintaining their integrity and unique nature, also contribute to these compounds' great interest. This review paper concerns the preparation of new phospholipid conjugates containing fragments of biologically active compounds not found naturally in phospholipids, and phospholipids enriched with specific fatty acids with health- promoting properties (structured phospholipids). Chemical methods for the synthesis of phospholipids containing conjugated linolenic acid (CLA), dehydroepiandrosterone (DHEA) or selected non-steroidal anti-inflammatory drugs (NSAIDs) at the sn-1 and/or sn-2 position have been described. In addition, the evaluation of the antiproliferative activity of the obtained conjugates against selected cancer cell lines was also described. Enzymatic methods of modifying natural phospholipids leading to their enrichment with bioactive polyunsaturated fatty acids and conjugated acids have also been described.
ZASTOSOWANIE SPEKTROSKOPII OSCYLACYJNEJ W DETEKCJI BARWNIKÓW AZOWYCH W OPAKOWANIACH DO ŻYWNOŚCI
Authors: Kucharska Edyta , Michalski Jacek , Sąsiadek Wojciech , Dymińska Lucyna , Hołubniak Paulina , Hanuza Jerzy
Published: January 2025

This work is a continuation of our research on spectroscopic and structural properties and applications of a number of azo-dipyridine and phenyl-azopyridine derivatives. In the previous works, the results of DFT quantum calculations were used to discuss infrared and Raman spectra. The presented study generalizes these results using the literature data on the structure of aromatic azo compounds. Analysis of the spectra and detailed assignment of the observed bands to the specific oscillating modes enables their application to identification of azo dyes widely used in the food industry. The bioactivity of azo dyes means that the safety of their use requires the search for new methods of their detection in food. The paper shows that vibrational spectroscopy is an effective diagnostic method for identifying not only the material from which the plastic foil is made, but also the dye used for its dyeing. In this work, the method was applied to colour plastic foils used as pasta packaging. It has been shown that this foil is made of polypropylene, and azo dyes, such as orange yellow (orange dye), tartrazine (yellow dye), allura red (red dye), brilliant blue (blue dye) and a mixture of yellow and blue dyes (green dye) were used for its dyeing.
NOWOCZESNE SPOJRZENIE NA KONFIGURACJE ELEKTRONOWE I UKŁAD OKRESOWY PIERWIASTKÓW, CZYLI O EFEKTACH RELATYWISTYCZNYCH W CHEMII
Authors: Orlik Marek
Published: January 2025

The article describes in an accessible, conceptual way various types of relativistic effects, which are an important part of modern chemical education, practically absent in textbooks, however allowing for a better understanding of the properties of chemical elements and their compounds. This description was preceded by a concise non-relativistic characterization of electrons in multi-electron atoms, in terms of radial probability densities, in order to explain the dependence of electron energies on the principal (n) and orbital (l) quantum numbers. The results of recent quantum chemical calculations are discussed, which show the improved energy sequence of ns and (n-1)d orbitals in transition elements and explain the electron configurations of both neutral atoms and cations of the 3d and 4d block elements. The description of the relativistic effects begins with early Dirac concept of spin- orbit coupling as causing the splitting of the degenerate p, d and f orbitals for two sets of spinors. The role of this splitting in the stability of the respective oxidation states of the cations is discussed. Another important type of relativistic effects, confirmed only in the 1970s, operates in atoms of high nuclear charge (starting from 6. period) in which electrons move at a speed close to the speed of light. The resulting relativistic increase in the mass of the moving electron causes the stabilization of s and p orbitals, and destabilization of d and f orbitals. Representative examples of the influence of all relativistic effects on the properties of elements and their compounds are given (including mercury liquidity or the color of gold). In particular, relativistic effects specific for blocks 5d, 6p, 4f, 5f, 6d, and 7p were discussed. The possibilities of predicting further expansion of the periodic table with elements up to the atomic number of about 170 are outlined, based on taking into account both the relativistic effects for electrons and the stability of superheavy atomic nuclei. The article is addressed to chemists of all branches of this discipline.
WITAMINY Z GRUPY B – OPIS WŁAŚCIWOŚCI FIZYKOCHEMICZNYCH ORAZ BIOAKTYWNOŚCI Z WYKORZYSTANIEM PRZYKŁADOWYCH NARZĘDZI CHEMINFORMATYCZNYCH
Authors: Banach Sylwia , Jezierska Aneta
Published: January 2025

This paper presents a literature review of the biochemistry of vitamins B and the results of in silico physicochemical properties and bioactivity studies. The description was performed by cheminformatics tools closely related to the field of Medicinal Chemistry. It allows us to predict a great number of properties e.g. logP, TPSA, molecular volume or bioactivity associated with the chosen proteins (like kinases, proteases etc.). These investigations were carried out with the use of cheminformatics web tool Molinspiration. Its great advantages are mainly its wide availability, ease of application and quick analysis of small compounds. Thanks to the comparison with literature data of well–known B vitamins, it is possible to confirm that current cheminformatic web tools provide high reliability of the results and can support Drug Design methods.
ZRÓWNOWAŻONY ROZWÓJ METOD OTRZYMYWANIA BIODIESLA
Authors: Pobłocki Kacper , Pawlak Marta , Drzeżdżon Joanna , Jacewicz Dagmara
Published: January 2025

The increase in urbanization and the growing demand for petroleum products, fuels and energy correlates with the depletion of resources of non-renewable energy sources such as crude oil, hard coal, and natural gas. Due to the high emissions of greenhouse gases, i.e., carbon oxides (COx), nitrogen oxides (NOx) and sulfur oxides (SOx), the use of fossil fuels causes drastic climate changes [1]. Therefore, new, "green", sustainable, and renewable energy sources, e.g., biofuels, are currently being sought. Such interests of scientists are in line with people's most urgent needs due to the rapidly depleting oil resources, the increase in fuel prices and the degradation of the natural environment. Biodiesel is one of the most widely used biofuels due to its more positive impact on the environment (compared to diesel fuel), and technical and strategic advantages. Therefore, in this review, we would like to draw attention to the sustainable development of biodiesel synthesis methods, the progression of advanced technologies supporting this process, and the various types of reactors for biodiesel production (for example, a membrane or microwave reactor) will also be discussed [1]
ODSALANIE WODY MORSKIEJ WYKORZYSTUJĄC PROCES DESTYLACJI MEMBRANOWEJ - MOŻLIWOŚCI I SZANSE
Authors: Gontarek-Castro Emilia
Published: January 2025

Problem dostępu do czystej wody na świecie staje się coraz bardziej poważny. Rozwój nowych zasobów wodnych jest kluczowy dla zapewnienia wystarczającej ilości wody pitnej dla ludzi i zwierząt, a także do zaspokojenia potrzeb przemysłowych, rolniczych i innych sektorów gospodarki. Istnieje wiele innowacyjnych rozwiązań, które mogą pomóc w rozwiązaniu tego problemu. Destylacja membranowa (ang. membrane distillation, MD) to obiecująca technologia odsalania wody morskiej ze względu na zdolność przetwarzania wód o wysokim zasoleniu i możliwość wykorzystania ciepła odpadowego lub alternatywnych źródeł energii. Jednakże, praktyczne zastosowania membran do MD są ograniczone przez niski przepływ pary wodnej i problem z porastaniem i zanieczyszczeniami na membranie. Z tego powodu, w ostatnim czasie wzrosło zainteresowanie opracowywaniem nowych materiałów membranowych o zwiększonej hydrofobowości w celu poprawy wydajności odsalania. Niniejsza praca, przedstawia przegląd danych literaturowych dotyczących destylacji membranowej, możliwości jej zastosowania i szans na jej transformację zgodnie z zasadami zielonej chemii i zrównoważonego rozwoju.
PEPTYDY Z WĘZŁEM CYSTEINOWYM JAKO INHIBITORY KALLIKREINY 13
Authors: Jankowska Dżesika , Rejmak Wiktoria , Lesner Adam , Gruba Natalia
Published: January 2025

nhibitor cysteine knots (ICK) also known as "knottins," are cysteine-rich peptides typically composed of approximately 30 amino acids. These peptides exhibit a characteristic robust structure featuring three antiparallel β-sheets that are "knotted" together by three disulfide bonds. This structural motif confers stability to the protein, rendering it resistant to thermal denaturation and proteolysis. Consequently, inhibitor cysteine knots hold great promise as scaffolds for developing new peptide drugs. In this study, we present the synthesis and evaluation of six potential inhibitors targeting KLK13, utilizing the Ecballium elaterium trypsin II inhibitor (EETI-II) as the leading structure. The peptides were synthesized in solid-phase peptide synthesis with an automated peptide synthesizer. Subsequently, they were oxidized using iodine and then quenched with an anion exchange resin. Both linear and oxidized compounds were obtained and subjected to kinetic studies. The inhibitory activity against KLK13 was observed exclusively in the oxidized analogues of the synthesized compounds. Linear peptides exhibited lower affinity towards KLK13, highlighting the critical role of the disulfide bridge in the structure of the EETI-II analogues for inhibiting the enzyme activity.
LABORATORIA I PRACOWNIE MARII SKŁODOWSKIEJ-CURIE
Authors: Pospieszny Tomasz , Wajs-Baryła Ewelina
Published: January 2025

Marie and Pierre Curie are widely known as the discoverers of polonium and radium, as well as researchers of radioactivity. However, little is known about the places where they made breakthrough discoveries. Particularly famous is the shed located at 43 Lhomond Street, where the Curies carried out their pioneering work. Less known is the laboratory on Cuvier Street, where the Curies worked from 1904 until Pierre's tragic death. Marie Curie occupied this laboratory until 1914, when she moved to the Radium Institute at Pierre Curie Street, built especially for her needs. The laboratories where she learned experimental work are also important: in the sugar factory workshop in Krasiniec and the Museum of Industry and Agriculture in Warsaw. Another important issue is the "sensational news" related to the demolition that has been causing a stir in recent months, the so-called Pavillon des Sources (Pavilion of Sources).
PRZEGLĄD I OCENA PERSPEKTYWICZNYCH MODYFIKACJI KOMPOZYTÓW HYDROŻELOWYCH KARBOKSYMETYLOCELULOZY STOSOWANYCH W MATERIAŁACH OPATRUNKOWYCH
Authors: Niedźwiecka Aleksandra , Talik Przemysław
Published: January 2025

Dressing materials are an important element in the wound healing process. They form a physical barrier protecting them from infection (or superinfection) and further mechanical damage. The ideal dressing should provide a moist wound healing environment, thereby promoting fibroblast proliferation, accelerating the process of re-epithelialization, reducing the sensation of pain, discomfort, and the likelihood of infection. Other important characteristics are tissue compatibility, non-toxicity, biodegradability at a rate compatible with wound healing, adequate antimicrobial activity, mechanical strength, sterility, and ease of use (including seamless removal after healing) [1,2,3]. Carboxymethyl cellulose (CMC) is a cellulose derivative used in a variety of industries. It has been selected for use in the production of hydrogels as wound dressings due to, among other things, its ability to adapt easily to irregularly shaped wounds, absorb exudates, keep the wound moist, and promote autolytic wound debridement. CMC improves wound healing in in vivo models. Nevertheless, it does not meet all the requirements considering all phases of healing such as tunable mechanical properties (like stiffness, flexibility, and elasticity) as well as lack of antimicrobial activity (desirable in dressings) [3,8,10]. That’s why it does not constitute a dressing material on its own and additions of other substances (not necessarily polymeric), as well as functionalization of the composite, are necessary. In this article, an attempt is made to detail modifications of carboxymethyl cellulose hydrogel composites that are considered prospective. Modifications using biomolecules, polymers, inorganic materials, as well as crosslinking agents were considered
Thermo-hydraulic design of a horizontal shell and tube condenser for methanol condensation
Authors: Pérez Sánchez Amaury , Pons García Yerelis , Basulto Pita Daynel , Ranero González Elizabeth , Pérez Sánchez Eddy Javier
Published: January 2025

Los condensadores de carcasa y tubos se consideran una parte importante de los sistemas de refrigeración y de las centrales eléctricas, así como de otras aplicaciones petroquímicas en las que se suelen emplear los intercambiadores de calor. Este artículo presenta el diseño termohidráulico de un intercambiador de calor de carcasa y tubos horizontales de dos pasos de tubo (1-2) para condensar una corriente de vapores de metanol puro utilizando agua fría como refrigerante. Se calcularon varios parámetros de diseño como el área de transferencia de calor (119,33 m2); el número de tubos (285); el diámetro interno de la carcasa (800,56 mm) y el coeficiente de transferencia de calor global (618,47 W/m2. K). El calor calculado para este servicio de intercambio de calor fue de 8.272,5 kW, mientras que el caudal requerido para el agua enfriada fue de 151,59 kg/s. Las caídas de presión calculadas para las corrientes de metanol de condensación y agua enfriada fueron de 7.372,55 Pa y 84.289,69 Pa respectivamente, que están por debajo de los valores límite máximos establecidos por el proceso. El condensador de carcasa y tubo diseñado 1-2 era del tipo de cabeza flotante extraíble, con un corte de deflector del 45% y un espaciado de deflector igual al diámetro interno de la carcasa.
Evaluation and Proposal for an Environmental Management System in a Mango Plantation
Authors: Pincay Moran José Estiven , Ramírez Salcan Jordán Francisco , López Vargas Armando Fabrizzio , Duque-Aldaz Francisco Javier , Villamagua Castillo William , Sánchez Casanova Ricardo
Published: January 2025

Una finca de mango en la provincia de Los Ríos, Ecuador, carecía de un Sistema de Gestión Ambiental (SGA) y tenía un manejo rudimentario de fertilizantes, pesticidas y desechos. El objetivo de la investigación fue diseñar un SGA basado en la norma ISO 14001:2015 para la granja con el fin de mejorar su desempeño ambiental y facilitar el cumplimiento de la normativa ambiental. Para el desarrollo de la investigación se aplicaron encuestas a los trabajadores para evaluar sus conocimientos sobre manejo ambiental y se realizó un recorrido por las instalaciones de la hacienda para observar sus procesos. Se analizaron los resultados y se propuso un SGA basado en la norma ISO 14001:2015. Como resultado, se encontró que la mayoría de los trabajadores no tenían conocimientos de gestión ambiental. La granja no contaba con un SGA y se enfrentaba a retos en la gestión del agua y la gestión de residuos. La propuesta de implantar un SGA basado en la norma ISO 14001:2015 permitiría a la granja mejorar su comportamiento medioambiental y cumplir sus objetivos de certificación a medio plazo. Por lo tanto, se puede concluir que la propuesta de implementar un SGA basado en la norma ISO 14001:2015 permitiría a la granja mejorar su desempeño ambiental y cumplir con sus objetivos de certificación a mediano plazo.
Implementation of gastrodiplomacy as a strategic axis of tourism development and contribution to the cultural dissemination of Ecuador
Authors: Delgado Gómez María Belem , Delgado Campuzano Diana
Published: January 2025

La gastrodiplomacia se refiere a las estrategias ejecutadas por una nación para difundir la cultura gastronómica en el extranjero, para dar a conocer la cultura a través de los sabores del territorio a través de la gastronomía. En Ecuador, la implementación de la gastrodiplomacia simboliza una alternativa viable a llevar a cabo como eje estratégico con miras al desarrollo turístico y al aporte a la difusión cultural de la diversidad de productos y gastronomía ecuatoriana. El propósito de este estudio fue plantear la aplicación de la gastrodiplomacia como estrategia de implementación por parte de la autoridad nacional como pilar del desarrollo turístico en el Ecuador. La metodología de investigación aplicada en el presente estudio es de carácter exploratorio con un enfoque cualitativo, dado que se utiliza como método el relevamiento bibliográfico correspondiente a la gastrodiplomacia y su incidencia en la difusión cultural de un país; y el uso del método Delphi para validar las estrategias propuestas por expertos en la materia. Los resultados de esta investigación reflejan la viabilidad de implementar la Gastrodiplomacia como eje estratégico de desarrollo turístico por parte de las entidades competentes debido al alto impacto en la difusión cultural internacional del Ecuador; dado que se han estudiado casos de éxito en países de Asia y América, lo cual es aplicable en nuestro país. En conclusión, la representativa diversidad gastronómica de nuestro país que nos caracteriza por tener cuatro regiones marcadas: Costa, Sierra, Amazonía y Galápagos muestra multiculturalidad incluso en nuestros productos y gastronomía valorada internacionalmente.
An Empirical Investigation on the Relationship Between Digital Finance Adoption and Financial Inclusion of Micro Businesses in India
Authors: Verma Sushma , Shome Samik
Published: January 2025

The present study explores the factors affecting digital finance adoption in micro units towards deepening of financial inclusion in the Indian context. This study combines perceived usefulness, perceived ease of use, behavioural intention, adoption, and actual usage from TAM3 with perceived risk and trust from Prospect Theory. Further, the study also investigates the moderating role of peer influence and government support in improving digital finance adoption amongst micro units. A structured questionnaire has been used for collecting the quantitative data from two cities of India, viz. Mumbai and Ahmedabad. The proposed model has been analysed statistically using PLS-SEM. The study empirically demonstrated that perceived usefulness; perceived ease of use, and perceived risk have a significant bearing on behavioural intention to adopt digital finance. It also validates the moderating role of peer influence and government support in digital finance adoption. The study findings demonstrate empirically that digital finance has a positive impact on the financial inclusion of micro units in India. This study focuses exclusively on micro units in India, and this depicts its novelty.
Technology-driven Sustainability in Small and Medium-sized Enterprises: A Systematic Literature Review
Authors: Kannan Selvi , Gambetta Nicolás
Published: January 2025

This systematic literature review explores how small and medium-sized enterprises (SMEs) leverage technology to integrate sustainability into their operations, thus contributing to the Sustainable Development Goals (SDGs). Through a comprehensive analysis of 208 articles from 147 journals, we identify eight key themes: external environment, organisational context, sustainability orientation, technology opportunities, innovation focus, knowledge management, assessment frameworks, and sustainability practices and outcomes. The study findings enable us to synthesise an integrated framework that illuminates the intersection of technology use and sustainability incorporation in SMEs. This review addresses critical literature gaps and provides a foundation for future research and practical applications in SME sustainability.
HydroLens: Pioneering Underwater Surveillance with IoT-powered Object Detection and Tracking using the Hybrid ResNeXt DenseNet Model
Authors: Tada Sujilatha , Vellaichamy Jeevanantham
Published: January 2025

Efficient object detection and tracking approaches are gaining popularity and being actively used in the world of underwater surveillance. This study presents an innovative protocol that combines a Hybrid ResNeXt-DenseNet Model to boost the visual perceptivity of the Internet of Things (IoT)-based underwater surveillance. The model focuses on what is the best of ResNeXt and DenseNet, yielding higher accuracy at lower computational cost than either. Its components are: IoT-enabled underwater sensors for data capture, a robust data preprocessing pipeline designed for underwater imagery, and the innovative Hybrid ResNeXt-DenseNet Model for object detection and tracking. The architecture of the model is proposed in order to overcome the issues related to underwater environments, such as low visibility, changeable illumination conditions, and complex background. Python was used to implement the proposed model and experiments have been conducted on popular benchmarks of underwater datasets, and the proposed approach obtains a recognition accuracy of 98%. In this model, the Hybrid ResNeXt-DenseNet Model has the notable ability to accurately identify and track objects of interest in real-time underwater situations. Furthermore, the inclusion of IoT features ensures data flows without interruption, allowing for prompt response and action. This research leads towards better situational awareness and marine environment protection systems by proliferating IoT and exploiting sophisticated deep learning methods at the root level.
Enhancing Underwater Object Recognition: Integrating Transfer Learning with Hybrid Optimization Techniques for Improved Detection Accuracy
Authors: Tada Sujilatha , Vellaichamy Jeevanantham
Published: January 2025

Underwater object recognition presents unique challenges due to varying water conditions, low visibility, and the presence of noise. This research proposes an advanced methodology that combines transfer learning and hybrid optimization techniques to enhance recognition accuracy in underwater environments. Specifically, a pre-trained EfficientNet model is employed for feature extraction, leveraging its capacity to capture diverse features in underwater images. The model is then optimized using a hybrid Particle Swarm Optimization and Genetic Algorithm (PSOGA) to fine-tune hyperparameters such as learning rate, number of layers, and activation functions. This hybrid approach balances exploration and exploitation in the search space, allowing the model to converge on an optimal solution that maximizes accuracy. The model is evaluated against nine existing deep learning models, including ResNet-50, VGG-16, EfficientNet-B0, and MobileNetV2. The proposed PSOGA model achieves a superior accuracy of 98.32%, surpassing the best-performing models like EfficientNet-B0, which reached 95.89%. Furthermore, the model outperforms traditional optimizers like Adam, RMSprop, and AdaGrad, which attained lower accuracies. Precision, recall, and F1-score for the PSOGA model also demonstrate remarkable improvements, highlighting the model's effectiveness in underwater object recognition. The combination of transfer learning and hybrid optimization enables the model to generalize well across diverse underwater environments while maintaining computational efficiency.
Revolutionizing Internet of Vehicles with Quantum Key Distribution on Blockchain for Unprecedented Security
Authors: Phil Hong Seng
Published: January 2025

Advanced connection and autonomous features are being made possible by the Internet of Vehicles (IoV), which is causing a revolution in transportation. Strong security measures are required, however, because the prevalence of connected devices also increases the likelihood of cyberattacks and data breaches. This study introduces a new method for protecting IoV networks, which combines Blockchain technology with Quantum Key Distribution (QKD), creating a security architecture with two layers. Internet of Vehicles (IoV) technologies enable autonomous driving and real-time data exchange by connecting vehicles to infrastructure and one another. These advancements make things safer and more efficient, but they also put sensitive information at risk of cyberattacks. Modern security measures are essential since traditional encryption methods are becoming more and more insecure. To provide encryption that is theoretically unbreakable, the suggested system uses QKD to create and distribute cryptographic keys based on principles of quantum mechanics. To improve trust and transparency, blockchain technology is used to record these keys and any subsequent transactions in an immutable, distributed ledger. A hybrid architecture, with QKD securing the key exchange and Blockchain ensuring the integrity and authenticity of the communication, is designed as part of the integration process. Improved security and speed have been shown in simulations and prototype implementations of the QKD-Blockchain architecture in IoV networks. By preventing eavesdropping and key interception, the QKD technique kept the communication channel secure. With an average delay of only about 2 milliseconds, QKD performed admirably and was well below the permitted range for real-time vehicular communications. On average, validation durations for transactions were 5 milliseconds, which was a little overhead due to blockchain integration. The system efficiently handled up to 10,000 transactions per second without affecting security or performance, proving that it can serve massive IoV networks, according to scalability testing. Under high-load scenarios, the framework maintained consistent performance and security, proving its robustness in stress tests. Together, QKD and Blockchain provide a scalable and trustworthy option for future vehicular communication networks, and these results show how feasible and robust it is to use them to protect IoV systems. An intriguing approach to the security issues plaguing IoV systems is the integration of QKD with Blockchain technology. An unparalleled level of protection against cyber threats is provided by the dual-layered system, which guarantees strong encryption and data integrity. This fresh method may lead to improved and more trustworthy IoV networks by establishing new benchmarks for secure vehicular communication. In order to optimize the implementation and tackle any new issues that may arise, more research and development should be conducted.
HOSNA: Boosting Smart Agriculture Efficiency With The Hybrid Optimization-Based Sensor Node Activation Model
Authors: V Kavitha , V Prasanna , S Lekashri , M Venkatesan
Published: January 2025

Smart agriculture leverages Wireless Sensor Networks (WSNs) to monitor environmental parameters such as soil moisture, temperature, and humidity, enabling precision farming and efficient resource utilization. The Hybrid Optimization-Based Sensor Node Activation (HOSNA) model designed to enhance the efficiency and lifespan of Wireless Sensor Networks (WSN) in smart agriculture applications. HOSNA integrates clustering, energy-efficient activation, hybrid optimization algorithms, and machine learning to optimize sensor node operations while ensuring accurate and real-time environmental monitoring. The model employs Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) to determine optimal sensor activation schedules, reducing energy consumption and prolonging network lifetime. Additionally, a Long Short-Term Memory (LSTM) neural network predicts environmental changes, allowing proactive sensor activation. Simulation results demonstrate that HOSNA achieves a 94.0% data accuracy after 1000 operational rounds, surpassing LEACH (90.0%), PEGASIS (86.0%), and Random Duty Cycling (RDC) (70.0%). Energy consumption reduced by 24% compared to LEACH, while network lifetime extended by 32% over PEGASIS. These results highlight HOSNA’s ability to provide reliable, energy-efficient, and scalable solutions for precision agriculture. Future improvements could involve adapting the model for heterogeneous sensor networks and integrating solar-powered nodes for sustainable energy.
The Deployment of Machine Learning and On Board Vision Systems for An Unmanned Aerial Sprayer for Pesticides
Authors: Mohsin Karrar S , S Chandravadhana , Chaudhari Viharika , K Balasaranya , R Pari , B Srinivasarao
Published: January 2025

In the Smart Farming (SF) domain, integrating autonomous systems is revolutionizing the efficiency and sustainability of Crop Management (CM) practices. This paper introduces an approach to Pest Control (PC) in Tea Plantations (TP), focusing on using an autonomous Unmanned Aerial Vehicle (UAV) equipped with a Pest Detection (PD) and precision spraying system. Leveraging the capabilities of the DJI Agras T40, a UAV specifically engineered for agricultural use, this system incorporates a Deep Learning (DL) built on the DenseNet-121 architecture. This model is refined to accurately detect and accurately evaluate the infection rates of six prevalent tea pests. In order to intelligently identify pesticide dispersion, the UAV uses advanced technology. This provides targeted deployment, optimizes the utilization of resources, and minimizes impact on the environment. The method's effectiveness has been proved by simulation experiments, recommending that it has real-world possibilities. A sustainable and flexible approach to several pest cases can be achieved by pairing the Sprayer Control Module (SCM) with the PD. Such integration significantly advances autonomous Pest Control Systems (PCS), enhances PC precision and performance, and minimizes the environmental impact.
ЗАПРОВАДЖЕННЯ LEAN-ІНСТРУМЕНТАРІЮ В ОПЕРАЦІЙНОМУ МЕНЕДЖМЕНТІ ПІДПРИЄМСТВА
Authors: КОЛОС Ірина Василівна , ОМЕЛЬЯНЕНКО Тетяна Володимирівна , КАЛІНІН Олександр Володимирович
Published: January 2025

У межах авторського дослідження з використанням системного підходу обґрунтовано операційну систему підприємства як одну зі складових систем організації, що реалізує операційну функцію (виробництво готової продукції і / або надання послуг зовнішнім замовникам / споживачам) з подальшою систематизацією елементів другого порядку для підсистеми забезпечення (технічна підготовка, технологічне обслуговування, ресурсне забезпечення). Запропоновано виокремлення трьох функціональних підсистем (переробна підсистема, підсистема забезпечення, підсистема управління). Аргументовано результати функціонування операційної системи: (1) цінність для споживача / замовника, (2) грошовий потік і чистий дохід для підприємства. Доведено необхідність використання lean-інструментів для управління окремими підсистемами операційного менеджменту: переробна підсистема (VSM, SOP, Poka-Yoke, Jidoka, Heijunka, Andon, SMED), підсистема забезпечення (JIT, Pull System, Kanban, Team work, карта компетентності, TPM), підсистема управління (Lean Canvas, Visual Management). Встановлено, що методи 5 S, 5 W, Kaizen можуть бути запровадженими за всіма підсистемами, а метод 5 S розглядається як підґрунтя для реалізації подальших методів в межах основної підсистеми перероблення.
Presepsi Wajib Pajak Tentang Pendapatan, Kesadaran, Pengetahuan Pajak dan Kemudahan Layanan terhadap Kepatuhan Wajib Pajak dalam Membayar PBB di Kelurahan Joglo Kecamatan Banjarsari Kota Surakarta
Authors: Aida Rahmawati Dwi Kencana  , Bambang Widarno
Published: January 2025

This study is to test and analyze taxpayers' perceptions of income, awareness, tax knowledge and ease of service on taxpayers' compliance in paying land and building taxes in Joglo Village, Banjarsari District, Surakarta City. This study uses the slovin formula so that the sample obtained by 96 respondents However, after the classical assumption test, namely the heteroscedasticity test and the normality test, are not significant or are said to have not passed the test, so the researcher must use outlier data and the respondent data is reduced by 3 to be declared passed. So the number of samples used in this study is 93. The data collection technique uses a questionnaire. The analysis techniques used were Descriptive Analysis, Validity Test, Reality Test, Classical Assumption Test, Multiple Linear Regression Analysis, t-Test, F Test and Coefficient of Determination. This study shows the results that taxpayers' income does not have a significant effect on taxpayers' compliance in paying land and building taxes, taxpayers' awareness does not have a significant effect on taxpayers' compliance in paying land and building taxes, Tax knowledge has a significant effect on taxpayer compliance in paying land and building taxes, ease of service does not have a significant effect on taxpayer compliance in paying land and building taxes
Pengaruh Harga dan Promosi terhadap Kepuasan Pelanggan Gojek
Authors: M. Alfitra Salam  , Ilham Hidayah Napitupulu  , Erwinsyah Simanungkalit  , Harris Pinagaran Nst  , Aulia Benazira
Published: January 2025

This study aims to analyze the influence of price and promotion on Gojek customer satisfaction among students of the Business Administration Department at the State Polytechnic of Medan. This research uses a quantitative method with data collection through questionnaires, involving 101 respondents who are students of the Business Administration Department at the State Polytechnic of Medan and users of Gojek services. The data analysis technique used in this research is multiple linear regression analysis. The results show that price and promotion have a positive and significant impact on customer satisfaction. This means that the better the price and promotion offered by Gojek, the higher the level of customer satisfaction. These findings imply that Gojek management needs to continually pay attention to pricing and promotional strategies to improve customer satisfaction, especially among students.
Pengaruh Citra Merek dan Kualitas Produk terhadap Keputusan Pembelian Skincare Scarlett pada Mahasiswa Kota Medan
Authors: Anjelina Padang  , Vivianti Novita  , Martolop Sinambela  , Safaruddin Safaruddin  , Nursiah Fitri
Published: January 2025

Brand image has an important role in purchasing decisions. It is related, when the product image has a strong value in the market, it can attract purchasing decisions. Product quality indirectly provides good product quality to customers so that if product consumers have good quality, this will enable consumers to make purchase decisions. This study aims to obtain empirical evidence on how the influence of brand image and product quality on purchasing decisions for scarlett skincare on students in Medan City. The research method used is a quantitative research method. Sampling was carried out using the incidental sampling technique with a total of 96 respondents and data collection was carried out by distributing questionnaires. The data analysis technique used is multiple linear regression with the help of SPSS version 26 statistical tools. Where the results of the study show: (1) brand image has a positive and significant effect on the decision to purchase Scarlet skincare (2) product quality has a positive and significant effect on the decision to purchase Scarlett skincare (3) simultaneously brand image and product quality have a positive and significant effect on the decision to purchase Scarlett skincare and (5) the results of the determination coefficient test (R Square) can be seen that Brand Image and Product Quality provide 63.3% in the decision to purchase Scarlet skincare for Medan City students while the remaining 33.7% is influenced by other factors from outside the study.
Pengaruh Kualitas Produk dan Harga terhadap Keputusan Pembelian Laptop Asus
Authors: Ilham Sembiring  , Safaruddin Safaruddin  , Desri Wiana  , Harris Pinagaran Nst  , Anggiat Parlindungan
Published: January 2025

Nowadays, technological advances are growing rapidly, where every company is competing to create new products and follow the trends of what customers want. This is very influential in facilitating activities carried out by consumers. Laptops are now really needed by students to support their mobility in carrying out assignments and reports that must be done and submitted to their lecturers, especially for final year students to write their theses as graduation requirements. This research aims to examine the influence of product quality and price on the decision to purchase Asus laptops among Medan city students. This researcher needs to know which variable dominates. The type of research used is correlational research. This research is quantitative. The population and sample in this study were 100 students in the city of Medan, data was taken through a questionnaire distributed online to respondents. The independent variables in this research are product quality (X1) and price (X2), while the dependent variable is purchasing decision (Y). Data were analyzed using Instrument Tests, Classical Assumption Tests, and Multiple Linear Regression. The results of this research show that product quality partially has a positive and significant effect on the decision to purchase Asus laptops among students in the city of Medan, while the price variable has no effect on the decision to purchase Asus laptops and simultaneously has a positive and significant effect on the decision to purchase Asus laptops among students in the city of Medan and The more dominant variable in this research is the product quality variable.
Pengaruh Kualitas Produk dan Harga terhadap Kepuasan Pelanggan Mie Gacoan Dr. Mansyur Medan
Authors: Nabila Malona Siregar  , Agus Edi Rangkuti  , Annalisa Hasibuan  , Ika Mary Pasaribu  , Parenta Ritonga
Published: January 2025

In the current era of globalization, the business world is experiencing rapid growth, particularly in the culinary industry. This business is directly related to the basic human need for food, as it is one of the fundamental necessities for survival. The influence of product quality and price on customer satisfaction at Mie Gacoan Dr. Mansyur Medan has become an interesting topic for research, given the importance of these two factors in maintaining and enhancing customer satisfaction. This study aims to determine the extent to which product quality and price affect customer satisfaction at Mie Gacoan in Medan, with a focus on students of the Business Administration Department at Politeknik Negeri Medan as the research subjects. This study employs a quantitative research method with a descriptive approach, including tests for validity, reliability, classical assumptions, hypothesis testing (t-test, F-test, and analysis of the coefficient of determination (adjusted R square)). Data analysis techniques were performed using multiple linear regression analysis with SPSS version 26, involving 100 respondents. Data collection was carried out through questionnaires and literature studies. The results of the study show that product quality (X1) and price (X2) have a positive and significant influence on customer satisfaction (Y), both partially and simultaneously. The results of the multiple linear regression analysis reveal that the price variable has a greater or more dominant influence on customer satisfaction, with a regression value of 76.9% compared to the product quality variable, which obtained a value of 16.9%. Additionally, the results of the coefficient of determination test (adjusted R square) indicate that the variables of product quality and price can explain 81.3% of the influence on customer satisfaction, while the remaining 18.7% is influenced by other variables not examined in this study, such as service quality, ambiance, promotion, and other variables.