bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exhaust Gas Heat Recovery from a Marine Engine Using a Thermal Oil System
Authors: Nguyen Thanh Hai , Duong Xuan Quang , Bui Van Hung , Rudzki Krzysztof , Nguyen Van Nhanh , Hai Truong Thanh 
Published: December 2024

Abstract
The recovery of exhaust gas recovery from marine engines is gaining attention in regard to saving fuel and improving system efficiency. Waste heat recovery is particularly beneficial for providing thermal and electric power, and offers efficient solutions to both economic and environmental challenges. The use of waste heat recovery technology offers the opportunity to lower fuel consumption and improve systems, and this approach also falls in line with the stringent emissions guidelines of the International Maritime Organization. This paper describes a unique exhaust gas heat recovery system in which a thermal oil system is used to heat fuel and feed cargo, in order to lower exploitation costs while also addressing environmental issues. CFD simulations of the heat recovery unit with plain and finned helix coils provide important insights into their thermal performance and pressure characteristics. The results indicate that the incorporation of fins could markedly enhance the heat transfer performance. Finned configurations are also found to have higher oil outlet temperatures, reaching up to 145.4°C in the case of a rectangular configuration. In general, this study contributes to the advancement of waste heat recovery technologies in marine applications.
Energy Management Strategy for a Hybrid Power System for Ocean Engineering Vessels Based on an Improved Particle Swarm Optimisation Algorithm
Authors: Liu Kai , Zeng Xiangming , Yan Guohua 
Published: December 2024

Abstract
The maritime industry, a major contributor to carbon emissions, is under increasing environmental pressure due to global climate change. This study presents an innovative energy management strategy for hybrid power systems in ocean engineering vessels, based on an improved particle swarm optimisation algorithm. We convert the traditional powered vessel Marine Oil 257 to a hybrid model, and explore the energy storage requirements, system configurations, and control methods for a practical implementation. Post-conversion, the main diesel engine drives the propeller, and is supported by a lithium iron phosphate battery energy storage system in conjunction with the diesel engine and shaft generators to achieve certain energy efficiency and emission reduction goals. In our strategy, the shaft power of the main engine and the active power of the shaft generator are employed as decision variables, and the ship power balance, operational speed limits, generator output constraints, and system reliability are taken into consideration. Real-time optimisation of energy allocation is performed using an improved particle swarm optimisation algorithm in MATLAB. The effectiveness of this approach is validated through a comparative analysis with full-scale experimental data, and it is shown to be a practical pathway for retrofitting traditional power vessels to enhance the energy efficiency and for providing valuable insights for technological advancement.
Fuzzy Inference-Based Adaptive Sonar Control for Collision Avoidance in Autonomous Underwater Vehicles
Authors: Kot Rafał 
Published: December 2024

Abstract
This article discusses the use of adaptive control in the sonar scanning sector within an obstacle detection system, to improve the effectiveness of collision avoidance for autonomous underwater vehicles (AUVs). An adaptive network-based fuzzy inference system (ANFIS) was used for dynamic calculations of the sonar scanning sector. Based on 100 simulation scenarios containing various trajectories created by the mission planner, with various shapes, dimensions and arrangements of static obstacles, and various arrangements and displacement vectors of dynamic obstacles, the effectiveness of the proposed system was tested in comparison with other classical approaches such as a single echosounder and sonar with a fixed scanning sector width. The above sensor configurations were evaluated in terms of the percentage of collision-free trials, the average percentage of trajectory completion, and the average number of activations of the collision avoidance system. Simulations conducted based on the mathematical model of the AUV confirmed that the proposed approach increased the effectiveness of collision avoidance systems for AUVs compared to classical echosounder and sonar-based systems.
Personalized Learning: an Adaptive Approach Based on the VARK Model to Improve Distance Education
Authors: Vanegas Carolina Vargas , Puerta Jorge Enrique Arboleda , Ceballos Marcelo Noreña , Sánchez Jorge Mario Moreno 
Published: December 2024

Objective: This research designs a virtual course that adapts to different learning styles according to the VARK model and evaluates students' academic performance and satisfaction. Additionally, it provides an educational environment that optimizes learning through personalization.

Theoretical Framework: This study is based on the VARK model, which classifies learning styles, allowing a better understanding of students' information processing. The research also reviews theories on distance education and adaptive learning.

Method: A mixed-method approach is employed, using surveys and interviews to collect data on students' learning experiences before and after the course implementation. Results are analyzed using statistical tools and content analysis.

Results and Discussion: The results show that students who participated in the adaptive course exhibited a significant improvement in academic performance and satisfaction levels. Differences in the effectiveness of teaching strategies were observed based on the predominant learning style. These findings suggest that personalization in education can have a positive impact on learning.

Research Implications: This research is relevant for curriculum design and teacher training, as it promotes the inclusion of adaptive approaches in higher education. Educational institutions are encouraged to consider diverse learning styles when implementing virtual courses to maximize student potential.

Originality/Value: This study provides an innovative approach to using the VARK model in virtual education, highlighting the importance of tailoring learning to students' individual needs. Its originality lies in the practical implementation of this model, which can serve as a reference for future research and educational developments.
Evaluation of Internal Erosion Potencial Due to Dipersive Fine Soil Used as Construction Material in the Chasqueiro Dam – Arroio Grande/RS: Geotechnical and Geophysical Methods
Authors: Camargo Karina Retzlaff , Bruch Alexandre Felipe , Silva Jeanderson Lima da , Carneiro Marciano , Rodrigues Milene de Lima , Retzlaff Alana Stern 
Published: December 2024

Objective: The objective of the study was to assess the potential for internal erosion in the Chasqueiro Dam, in southern Brazil, considering the possible use of dispersive fine soils in its construction.

Theoretical Framework: Key information is highlighted regarding internal erosion, soil dispersibility, and the inductive electromagnetic method, offering a solid foundation for understanding the context of the investigation.

Method: The methodology identified the probable location of the quarrier exploted for the dam construction using historical aerial images and records from the basic project. This analysis was corroborated by fieldwork. Subsequently, soil samples from these quarries were collected for geotechnical characterization. Finally, the Inductive Eletromagnetic Method (IEM) was applied to assess the apparent electrical conductivity of the soil, validating the results obtained in the laboraty.

Results and Discussion: The precise location of the quarry used for the dam construction was identified, even nearly five decades after the dam's completion. This allowed the collection of representative soil samples, which demonstrated low susceptibility to dispersion. The electrical conductivity maps corroborated this finding by revealing predominantly uncontaminated areas, ruling out the possibility of significant saline contamination and refuting the hypothesis of internal erosion caused by the use of dispersive soil.

Research Implications: The study provides significant theoretical and methodological contributions by integrating geotechnical and geophysical approaches with the analysis of historical aerial images, establishing a multidisciplinary framework for evaluating the stability of earth dams. Methodologically, the research demonstrates the effectiveness of combining non-invasive techniques with geotechnical characterization to assess soil properties without compromising the structural integrity of the dam.

Originality/Value: The study innovates by integrating geotechnical and geophysical methods with the use of historical aerial images. Its relevance lies in offering a multidisciplinary approach to the monitoring of earth dams, while also contributing to the technical literature on the use of dispersive soils in engineering works.
FAKTOR DETERMINAN YANG BERHUBUNGAN DENGAN PARTISIPASI PEMERIKSAAN IVA PADA WANITA USIA SUBUR
Authors: Muhammad Yudhianto , Arief Rania Marwa Dinar , Tarigan Gita Handayani 
Published: December 2024

Cervical cancer is an important health problem for women throughout the world because it is the highest cause of death both nationally and globally. This study aims to assess various determinant factors that influence the participation of Women of Childbearing Age (WUS) to carry out IVA test in the Puskesmas Pesanggrahan working area. This research is an analytical observational study with a cross sectional design. Primary data was collected through questionnaires from respondents, while data on IVA test that carried out by WUS was taken from the Puskesmas Pesanggrahan in the period March – April 2024. The population of this study was all WUS who lived in the Petukangan Selatan Subdistrict, Pesanggrahan District, who met the research criteria. A total of 109 WUS became respondents in this study. In this study, the p value < 0.05 which showed a significant correlation was found in the determinant factors of knowledge related to IVA test, access to information related to IVA test, husband's support, support from health workers, support from health cadres, and support from friends. Determinant factors that are found to be related can be a focus for community health centers to develop promotive efforts on targets that determine decisions to WUS in carrying out IVA test, apart from the knowledge regarding IVA test among WUS can continue to be improved through health promotion programs at community health centre.
PENILAIAN KEBERHASILAN PROGRAM PEREMAJAAN KAWASAN KUMUH KEDAUNG, KOTA TANGERANG
Authors: Ananda Yulia , Yahya Wisely , Sitawati Anita 
Published: December 2024

Permasalahan permukiman kumuh di Kota Tangerang dengan luas permukiman kumuh 89 Ha berada pada Kelurahan Kedaung Baru dan Kelurahan Kedaung Wetan. Peremajaan permukiman kumuh Kawasan Kedaung yang dilaksanakan dengan pendekatan bottom-up planning terindikasi belum optimal. Hal tersebut dapat menyebabkan ketidakpuasan masyarakat untuk kembali bermukim bahkan dapat menyebabkan adanya permasalahan baru. Penelitian ini bertujuan mengidentifikasi keberhasilan program peremajaan lingkungan berdasarkan persepsi masyarakat pasca berlangsungnya program. Pendekatan penelitian berupa pendekatan kuantitatif dengan metode analisis Importance-Performance Analysis (IPA). Pengumpulan data primer dilakukan dengan menyebarkan kuesioner kepada 100 responden. Rata-rata nilai ekspektasi masyarakat mengenai program peremajaan Kawasan Kumuh Kedaung tergolong cukup (skor 2,66). Penilaian kinerja pada program peremajaan Kawasan Kumuh Kedaung berada pada kategori rendah (skor 2,52). Pembangunan gerbang utama akses rusun menjadi program yang perlu ditingkatkan kinerjanya dan tergolong kuadran concentrate here. Program yang dinilai berhasil adalah sosialisasi program peremajaan lingkungan Kedaung yang diberikan oleh fasilitator, pembangunan jembatan akses, pembangunan rusun, pembangunan jalan akses utama rusun, pembangunan jembatan akses rusun, dan pembangunan jaringan air bersih, sedangkan enam program lainnya termasuk kuadran low priority.
14-YEAR-OLD MALE WITH SELECTIVE MUTISM – CASE REPORT
Authors: Sidarta Nuryani , Nathania C. 
Published: December 2024

Selective mutism is a rare anxiety disorder characterized by an individual's persistent inability to speak in particular social environments, such as at school or in public places, while being able to communicate effectively and comfortably in other environments, like at home or with close family and friends. 1 Selective mutism commonly manifests during early childhood, affecting approximately 0.2% to 0.8% of children, with a higher prevalence observed in preschool environments.2 This disorder can profoundly disrupt a child's developmental trajectory, potentially leading to significant social and academic impairments if not addressed promptly.3. T
his case report explores the developmental and communication challenges faced by a 14-year-old teenage boy presenting with significant delays in social communication skills. Referred to a developmental facility due to concerns about his social interaction and communication abilities. Patient’s symptoms and behaviors align with a diagnosis of Selective Mutism as defined by the DSM-V criteria This study provides a detailed account of how parents facing difficulty in obtaining an accurate diagnosis, which ultimately impacts the appropriate management and treatment. Limitations in speaking in public are often interpreted as part of a child's shy and quiet personality. As a result, this can lead to delays in diagnosis and eventually affect his language skills. Good awareness from parents and professionals is needed for early detection. As a professional, the ability to make an accurate diagnosis is essential to provide appropriate interventions for better prognosis and prevent further complications.
Pengaruh Penambahan Ekstrak Bunga Sepatu (Hibiscus rosa sinensis Linn.) Terhadap Peningkatan Aktivitas Antioksidan, Total Flavonoid, dan Warna Pada Mie Kering Berbahan Mocaf
Authors: Toke Mersiana P , Prabowo Sulistyo , Saragih Bernatal , Banin Maghfirotin M 
Published: December 2024

Dry noodles are a popular type of noodle, but product innovation needs to be carried out to promote food diversity. Hibiscus flower extract can be used not only as a natural coloring agent but also for its health benefits, such as antioxidant activity and total flavonoids. The aim of the research was to identify the effect of adding hibiscus extract to dry noodles on antioxidant activity, total flavonoids, moisture content and color. A non-factorial Completely Randomized Design with five treatments and three replications was used. The ratio of hibiscus extract was 5, 10, 15, 20 and 25% with a wheat flour and mocaf ratiom of 60:40. Mocaf was used in this product because it is affordable, widely available, and gluten free. The result of ANOVA (5% level) and Tukey’s test using Graphpad software showed that the addition of hibiscus extract to dry noodles had a significant effect on all test. The antioxidant activity in the best treatment, with 25% hibiscus extract was 47.482%, which was classified as very strong. The total flavonoids in the best treatment with 25% hibiscus extract was 147.14 mgQE/g, The mositure content ranged between 2.95-7.68% (meeting standards of SNI 01-8217-2015). The color of the dry noodles ranged from 0.34-1.44, with differences classified from not clearly visible to very small.
ANALISIS PENDAPATAN USAHA TERNAK DOMBA KISAR YANG DIPELIHARA SECARA SEMI INTENSIF DI PULAU KISAR PROVINSI MALUKU
Authors: Maukenu Maikel B , Tulalessy Abraham H. , Tatipikalawan Jomima M. , Tomatala G. S. J. 
Published: December 2024

The purpose of this study is to find out the amount of income and its contribution to the household income of Kisar sheep farmers and the factors that affect the income of Kisar sheep livestock business. The method of sampling the area by purposive sampling is to have the largest population of Kisar Sheep on Kisar Island, namely South Kisar District and North Kisar District, Southwest Maluku Regency. Each sub-district consists of 2 villages. A total of 60 farmer respondents were taken based on the criteria of having raised Ground Sheep for at least 3 years, using a semi-intensive system and having done marketing. Descriptive data analysis, economic calculations, income contribution and multiple regression analysis to see the factors that affect income from the Kisar Sheep livestock business. The results of the study show that explicitly the income of the Kisar Sheep livestock business is Rp. 25,335,789.34 per year and explicitly and implicitly of Rp. 8,454,643.67 per year. The contribution of income from the Kisar Sheep livestock business to the total family income is 28.95%. Factors that affect the income of the Sheep Grazing business are livestock ownership, the number of livestock marketed and the selling price at the livestock level.
MODEL PERUBAHAN PENUTUPAN LAHAN KELOMPOK HUTAN LINDUNG GUNUNG SIRIMAU KOTA AMBON PROVINSI MALUKU
Authors: Parera Evelin 
Published: December 2024

Tujuan peneilitian untuk menggambarkan dinamika pola perubahan tutupan lahan tanpa intervensi dan intervensi. Penutupan lahan tidak tetap selamanya, namun pasti mengalami perubahan yang disebabkan oleh faktor alami maupun oleh aktifitas manusia. Model perubahan tutupan lahan menggunakan Stella 9.0.2. Perubahan tutupan lahan sebelum penetapan sebagai hutan lindung (1990-1996) terdapat 4 (empat) kelas tutupan lahan Hutan Lahan Kering Primer, Hutan Lahan Kering Sekunder, Semak Belukar, dan Pertanian Lahan Kering Bercampur Semak. Perubahan tutupan lahan setelah penetapan sebagai hutan lindung (2000-2019) terdapat terdapat 7 (tujuh) tutupan lahan yaitu Hutan Lahan Kering Primer, Hutan Lahan Kering Sekunder, Semak Belukar, Savana, Pertanian Lahan Kering Bercampur Semak, Pertanian Lahan Kering dan Pemukiman. Model perubahan tutupan lahan tanpa intervensi untuk memperbaikinya sampai tahun 2039 cenderung menurun pada Hutan Lahan Kering Primer, Hutan Lahan Kering Sekunder, Semak Belukar, sedangkan Pertanian Lahan Kering Bercampur Semak, Savana, Pertanian Lahan Kering dan Pemukimann cenderung naik. Model perubahan tutupan lahan dengan adanya intervensi untuk memperbaikinya sampai tahun ke-20 pada Hutan Lahan Kering Primer, Hutan Lahan Kering Sekunder meningkat sedangkan Semak Belukar, sedangkan Pertanian Lahan Kering Bercampur Semak, Savana, Pertanian Lahan Kering dan Pemukiman cenderung menurun. Hal ini menunjukkan bahwa penutupan lahan pada Pertanian Lahan Kering Bercampur Semak, Savana, Pertanian Lahan Kering semakin meningkat dan tidak ada pengembangan Pemukiman.
ENTRE A ESCOLA E O TRABALHO: RELATO DE EXPERIÊNCIA DE UM JOVEM ESTUDANTE DE ENSINO MÉDIO
Authors: Souza Higor Assis de , Damasceno Meire Vasselli , Paes Maria Helena Rodrigues , Travessini Neodir Paulo 
Published: December 2024

Este trabalho traz um relato de experiência de um jovem estudante do Ensino Médio, da cidade de Tangará da Serra que, em função da necessidade de exercer atividades remuneradas para contribuir com a subsistência da família teve que se mudar da zona rural para habitar e trabalhar na cidade. Trata-se de um estudante inscrito no Programa de Bolsa de Iniciação Científica financiado pelo CNPq, na perspectiva de popularização da ciência, que, pela mudança de vida, teve que redirecionar suas atividades do projeto no qual estava envolvido. Sabemos o quanto os jovens sofrem ao se deparar com mudanças em função da situação financeira, dividindo suas horas diárias entre as atividades escolares e as atividades como trabalhadores, tendo que se inserir muito cedo mercado de trabalho. O relato, então, parte de um depoimento, coletado em forma de entrevista, na qual o jovem expressa seus anseios, suas dificuldades de adaptação à nova rotina e, ainda, uma nova dimensão nas relações familiares.
Palavras-chave:
A ATUAÇÃO DA EXTENSÃO UNIVERSITÁRIA: REFLEXÕES SOBRE O CONVÊNIO TCE/UFMT
Authors: Dalla-Nora Giseli Gomes , Pedrotti Debora Erileia , Cerqueira Lenicy Lucas de Miranda , Rinaldi Carlos 
Published: December 2024

As universidades prestam serviços à comunidade, através da pesquisa e extensão, promovem qualidade de vida à população brasileira. Este texto objetiva apresentar algumas reflexões sobre o trabalho desenvolvido pela UFMT com o TCE do Estado. Tal convênio possibilitou o desenvolvimento de ensino e pesquisa por meio da extensão universitária. Nesta seara, realizou-se o recorte para fortalecer o debate, observando as ações da Meta 1 – Inovação em Tecnologia Educacional. No contexto do projeto/convênio TCE, desenvolve atividades de execução e acompanhamento dos processos de formação/capacitação; seus colaboradores desenvolvem atividades presenciais, algumas a distância, por meio de plataformas digitais.
Introduzione | Introduction
Authors: Candeago Arianna 
Published: December 2024

Writer, painter, poet, art critic and more, John Ruskin was undoubtedly a key figure in nineteenth‑century European culture (and beyond), whose multifaceted nature has been able to catalyse the interests of generations of scholars, even from distant backgrounds. Despite the numerous publications that have appeared on him over the years, Ruskin does not seem to have exhausted his appeal, lending himself – perhaps more than other figures of his time – to a multidisciplinary and interdisciplinary discourse on the arts in the broadest sense of the term.
Preconceito com pessoas idosas entre estudantes de Odontologia
Authors: Souza Luane Machado de , Ardenghi Larissa Vedana , Goulart Andressa Severo , Machado Júlia da Rosa , Tôrres Luísa Helena do Nascimento , Marchini Leonardo , Bulgarelli Alexandre Favero 
Published: December 2024

Em virtude do aumento da expectativa de vida da população brasileira o ageísmo/etarismo deve ser pensado considerando a importância do bem-estar e conforto das pessoas idosas na assistência odontológica. O objetivo deste estudo é caracterizar e analisar o perfil dos estudantes de graduação de um curso de odontologia do sul do Brasil, em relação ao preconceito com a pessoa idosa durante a formação. Trata-se de um estudo descritivo transversal, realizado com alunos de Odontologia da Universidade Federal do Rio Grande do Sul. Foram analisadas as variáveis, sexo, faixa etária, raça/cor, morar com idoso, concluir disciplina clínica, realizar disciplina de odontogeriatria, atender idoso no leito ou cadeira de rodas e orientar cuidador de idoso dependente, sendo que o desfecho em estudo foi a presença de ageismo/etarismo contra pessoas idosas. Todas as análises de dados foram conduzidas usando SPSS na versão 18.2 (IBM, Inc.) por meio do teste Pearson Chi-Square e Fisher's Exact Test. Todas as estatísticas inferenciais são bilaterais, com p<0,05 considerado estatisticamente significativo. A maior prevalência foi de estudantes que apresentavam baixo ageismo (55,3%). Ao identificar os preditores para o ageismo, observou-se diferenças estatisticamente significantes para faixa etária, em que os mais jovens (18-23 anos) possuem alto ageismo; autodeclarados brancos apresentam maior prevalência de alto ageísmo. Aqueles participantes que já concluíram alguma disciplina clínica, apresentaram baixo ageísmo. Existe a necessidade de implementação de ações destinadas aos estudantes do curso de odontologia já no início, entre as propostas estão o fortalecimento da extensão de odontogeriatria, desenvolvimento de disciplinas eletivas sobre o tema e rodas de conversas com a participação de discentes e docentes sobre o envelhecimento. Consequentemente, acredita-se que essas práticas proporcionarão uma formação acadêmica de maneira inclusiva e respeitosa aos idosos e possuem o potencial de transformar paradigmas sociais.