bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Layanan Informasi Melalui Metode Reward and Punishment Terhadap Motivasi Belajar Siswa Selama Pembelajaran Online Kelas VII di SMP RK Deli Murni Deli Tua
Authors: Nazariah Nazariah , Dewi Ika Sandra
Published: October 2023

Learning motivation is anything that can motivate students or individuals to learn. Without learning motivation, a learner will not learn and ultimately will not achieve success in learning. Therefore researchers use information services through the reward and punishment method in order to increase student motivation during online learning. The population in this study were all class VII students of SMP RK Deli Murni Deli Tua a total of 131 students. Then the determination of the sample was carried out by purposive sampling, namely as many as 30 students. Data collection was carried out by distributing questionnaires pre-test before treatment and post-test after treatment. The method used in this research is quasi-experimental. Based on the data management carried out, the average pre-test value = 71.3 with a standard deviation of 71.46 with details of the medium category of 1 person or 3.33%, the low category is 29 people or 96.67% while the average post-test value = 94.63 with a standard deviation of 94.95 with details of the high category of 2 people or 6.67%, the medium category is 28 people or 93.33%. It is proved by testing the hypothesis of the research that the t test value is 5.04 and t table 5% level is 2.045 (t count 5.04 > t table 2.045). Based on the data analysis, it can be concluded that there has been a change in students' learning motivation during online learning for class VII at SMP RK Deli Murni Deli Tua.
Upaya Meminimalisir Tingkat Glossophobia Melalui Konseling Kelompok Teknik Assertive Training Pada Siswa Kelas X SMAS Katolik Budi Murni 3 Medan
Authors: Damanik Cristin Mutiara , Murad Abdul
Published: October 2023

There were students in class X SMAS Catholic Budi Murni 3 Medan. When the group assignments consisted of 5 people in 1 group, almost every group there were students who did not participate actively, avoided or chose to remain silent. This study aims to minimize the level of glossophobia through group counseling with Assertive Training techniques for class X students at SMAS Catholic Budi Murni 3 Medan. The type of research used is counseling guidance action research (PTBK). The population determined was class X students and the sampling technique in this study used purposive sampling. Based on the sampling technique, 8 students were determined as research subjects. The data collection tool used is the glossophobia scale, the results of the instrument validity test are 31 valid items from 40 items, and the instrument reliability is 0.893. The results showed that the level of glossophobia before being given group counseling services with assertive training techniques had an average score of 74.7%, after being given services the average score was 51,6% in the first cycle and the second cycle the average score was 40,7%. The conclusion of the study was that 87.5% of students experienced an increase in scores, namely being in the low category, so this research was successful and was carried out in only 2 cycles. It can be concluded that group counseling with assertive training techniques can minimize the level of glossophobia in class X students of SMAS Catholic Budi Murni 3 Medan.
Dinamika Prestasi Akademik Mahasiswa terhadap Empat Metode Pembelajaran
Authors: Santoso Greta , Siaputra Ide Bagus , Lina Natalya
Published: October 2023

Abstract—Academic achievement is a number which is an index of learning achievement for one semester. Academic achievement can act as a benchmark for university students’ academic success. One of the things that could affect academic achievement is the use of appropriate learning methods by students. The purpose of this study is to determine fluctuations in academic achievement based on learning methods experienced by students in the Faculty of Creative Industries class of 2019, with a total of 69 students who had never experienced temporary study stops. This research method uses a quantitative longitudinal study that examines the development of the subject from time to time. The data to be analyzed is secondary data in the form of the Semester Achievement Index for students of the Faculty of Creative Industries class of 2019. The results of the analysis in this study found that there were significant differences in the average GPA between learning methods. Except for the comparison of blended and online learning methods¸ blended with hybrid, and online with hybrid. Overall, the hybrid method is proven to have the highest average GPA in this research. In conclusion, students need to start relying on technology as a means to attain better education and freedom during the learning process.

Keywords: academic achievement, learning methods, creative industries students

 

Abstrak—Prestasi akademik merupakan suatu angka yang merupakan indeks hasil pencapaian belajar selama satu semester. Prestasi akademik dapat menjadi tolok ukur kesuksesan belajar pada mahasiswa. Salah satu hal yang memengaruhi prestasi akademik yaitu penerapan metode pembelajaran yang sesuai dengan mahasiswa. Tujuan penelitian ini untuk mengetahui fluktuasi prestasi akademik berdasarkan metode pembelajaran yang dialami pada mahasiswa Fakultas Industri Kreatif angkatan 2019 dengan jumlah 69 mahasiswa yang tidak pernah mengalami berhenti studi sementara (BSS). Metode penelitian ini menggunakan kuantitatif longitudinal study yang meneliti perkembangan subjek dari waktu ke waktu. Data yang akan dianalisis merupakan data sekunder berupa Indeks Prestasi Semester (IPS) mahasiswa Fakultas Industri Kreatif angkatan 2019. Hasil analisis penelitian ini ditemukan adanya perbedaan rata-rata IPS yang signifikan antar metode pembelajaran. Terkecuali pada perbandingan metode pembelajaran blended dengan online¸ blended dengan hybrid, dan online dengan hybrid. Secara keseluruhan, metode pembelajaran yang memiliki rata-rata IPS tertinggi saat penggunaan metode hybrid. Maka untuk mencapai pendidikan yang lebih baik diusulkan kepada mahasiswa untuk semakin berani mengandalkan teknologi agar mencapai kebebasan dalam mengikuti proses pembelajaran.

Kata kunci: prestasi akademik, metode pembelajaran, mahasiswa fakultas industri kreatif
THE IMPACT OF THE MOVEMENT CONTROL ORDER PHASES ON THE QUALITY OF LIFE AMONG MALAYSIAN UNIVERSITY STUDENTS
Authors: Shari Maisarah , Raja Hussain Raja Nurul Jannat , Abu Kasim Nurul Ain , Ab Razak Rozella , Mohamed Kassim Nur Atikah , Md Japilus Siti Jameelah
Published: October 2023

This study measured the impact of the different phases during movement control order on the quality of life among local Malaysian university students aged >18 years old. An online survey was distributed through a social media platform during the movement control order (MCO; 20 April to 12 May 2020) and conditional movement control order (CMCO; 12 to 20 May 2020). The same participants completed the SF-36 quality of life questionnaire that assessed the overall physical health, mental health, and eight domains which are physical functioning (PF), physical role functioning (RF), bodily pain (BP), general health perceptions (GH), vitality (V), social role functioning (SF), emotional role functioning (EF), and mental health (MH) in both phases. A total of 523 participants (Male = 222, female = 301) completed the survey. A Wilcoxon signed-rank test showed that there was a significant difference in participants’ quality of life between the MCO and CMCO phases. It was revealed in comparison to the CMCO phase, the participants reported lower in both health-related and mental quality of life for PF (Z = -13.79, p <.001), RF (Z = -13.59, p <.001), BP (Z = -11.64, p <.001), GH (Z = -12.97, p <.001), V (Z = -13.15, p <.001), SF (Z = -15.19, p <.001), EF (Z = -13.71, p <.001), and MH (Z = -8.47, p <.001). In overall university students' quality of life, a better score was shown in physical health quality of life (Z = -13.98, p <.001) and mental health quality of life (Z = -13.21, p <.001) during CMCO compared to MCO phase. Variance experiences through the COVID-19 pandemic faced by university students during both phases of movement control order and conditional movement control order were noted to have an impact on their quality of life.
Integrated approach in preschool education: a fashion or a requirement of the times?
Authors: Bogush Alla
Published: October 2023

The article discusses the problem of implementing an integrated approach in the system of preschool education at the present stage both in preschool education institutions and in the system of higher school. Why did it become necessary to reconsider this problem, the relevance of which was discussed at length in the early twenty-first century? The appeal to the organization of the educational process in the preschool education system of Ukraine is connected with the adoption of the Concept "New Ukrainian School", which states that the leading principle of the content of education in primary school is the integration of the content of related new modules from other subjects (NUS, 2016: 25). The implementation of the principle of continuity in the organization of the educational process in preschool education has again raised the issue of intensifying the integrated approach in the system of preschool education, the core of which is the principle of integration. The article presents the results of the analysis of the scientific and terminological field of the concept of "integration" in terms of the variety of its interpretations and terminology in the definition of methodological approaches (integration, integrative, integral, integrated); specifies the application of the integrated approach in the modern educational field of both preschool education and higher school. Purpose of the article: to characterize the current state of implementation of the integrated approach in the modern practice of preschool education. The objectives of the study are to analyze the views of scientists on their understanding of the content position of scientific concepts that are components of the integrated approach. To focus the current practical application of the integrated approach in the system of preschool education.
Artistic and pedagogical design in professional training of future Musical Art teachers
Authors: Ashykhmina Nataliia , Novska Olena
Published: October 2023

The article describes the method of artistic and pedagogical design in the context of professional training of future music teachers. The relevance of the research is based on the importance of students mastering the latest artistic and pedagogical technologies in the process of studying at a higher education institution. The project method is defined as widespread and relevant in the context of pedagogical activity as one that develops the ability of future music teachers to carry out project activities of various types and subject areas, to carry out a critical analysis of various artistic material, to work on it independently, to navigate in the latest information and communication technologies. The purpose of the article is to reveal the essence and content of artistic and pedagogical design, to analyze its importance in the system of professional training of future music teachers; disclosure of the specifics of artistic and pedagogical design in the context of professional training of future music teachers. The article uses methods of theoretical research: analysis of scientific literature, generalization, systematization of practical experience. It has been established that creatively oriented design activity contributes to the formation of students of higher education, the ability to independently master scientific and methodological and artistic literature, aware and critical work with information, develops thinking, including project thinking, promotes personal and professional development, stimulates creative activity, develops emotional intelligence through interaction with works of musical art, etc. The principles of artistic and pedagogical design are substantiated.
PRAKTIK KEGIATAN HUMAS BNN DALAM PEMANFAATAN MEDIA SOSIAL
Authors: Soetantri Indah
Published: October 2023

The purpose of this research is to describe the social media function of BNN public relations and to describe the management of social media of BNN public relations. Data analysis was performed with interactive models from Miles and Huberman. The results showed that there are four roles and functions of social media PR BNN. First, simplicity; it appears on the social media BNN PR such as facebook, instagram, twitter and youtube that can be accessed easily by the whole community. Second, building relationships; this is evident in the existence of social media BNN PR can be a container for the community to submit complaints and input related to the presentation of information and activities of PR BNN. Third, global reach; this is evident from the social media accounts of BNN Public Relation which presents the content according to the field of the institution or organization. Fourth, measurable; can be seen from the message of BNN Public Relations through social media owned that shows that basically BNN Public Relations party utilizing social media is to influence the social media users and the wider community in order not to take action or misuse of drugs. In addition, the results show that management of social media management by BNN PR is done by presenting content or messages of danger of drug abuse and prevention efforts that are more massive and well accepted by the whole community both in the city and in the village.
ANALISIS STRATEGI KOMUNIKASI HUMAN RESOURCES TERHADAP PENERAPAN PRESENSI FINGERPRINT DALAM UPAYA MEMINIMALKAN PELANGGARAN KARYAWAN
Authors: Christian Lie Elke Melvinda , Wijaya Lina Sinatra
Published: October 2023

The presence system is a form of disciplinary supervision that has been implemented by companies for their employees. This fingerprint presence system can find out the level of employee discipline and reduce fraud such as data manipulation. The application of absence fingerprint-based is also used by PT. X to discipline its employees. The purpose of this study is to determine the communication strategies used and the design of an action plan in minimizing violations related to employee fingerprint attendance and efforts to improve employee performance at work. This study uses a qualitative description method with observation data collection techniques and in-depth interviews. The results of this research shows that communication strategy HRD PT. X , monitoring data and follow-up to the branch section can reduce violations related store employee fingerprint-based presence. The implementation of the action plan is making video reminders and facilities chatbot, which can also increase the employee perfomance.
GAYA HIDUP BARU KAUM MUDA GEMAR MENGUNJUNGI COFFEE SHOP (STUDI FENOMENOLOGI PADA ANAK MUDA PENGUNJUNG COFFEE SHOP DI KOTA SALATIGA)
Authors: Suryani Citra Dewi , Kristiyani Dian Novita
Published: October 2023

Di era modern dengan teknologi yang berkembang pesat, membuat tumbuhnya  inovasi baru yang menarik perhatian anak muda. Kini olahan kopi berinovasi bersama coffee shop yang menyediakan fasilitas modern, menu makanan yang bervariasi, pembayaran dilakukan dengan e-money, serta internet cepat dan gratis yang mempengaruhi anak muda untuk datang ke coffee shop. Pada penelitian ini memiliki tujuan untuk mengetahui gaya hidup baru pada anak muda yang gemar mengunjungi coffee shop dapat terbentuk di Kota Salatiga, di mana coffee shop yang mulai berkembang di Kota Salatiga. Metode penelitian yang digunakan adalah pendekatan fenomenologi dengan dasar kualitatif, dengan teknik pengumpulan data melalui wawancara. Perubahan gaya hidup pada anak muda yang tertarik untuk datang ke coffee shop didorong oleh faktor sosial dari keluarga atau lingkungan sekitar. Anak muda menyadari akan gengsi terhadap coffee shop atas nilai praktis dan kenyamanan dibandingkan kedai kopi sederhana. Penerapan gaya hidup baru memiliki tujuan sebagai eksistensi diri dilingkungan sekitar, terlebih bagi anak muda pengguna media sosial.
ANALISIS IMPLEMENTASI PROGRAM CSR PT.SIDO MUNCUL TERHADAP PERTUMBUHAN EKONOMI MITRA BINAAN MBOK JAJAN
Authors: Kristiyani Dian Novita , Boyliu Ocrang Paulus Ibrani
Published: October 2023

Penelitian ini memiliki tujuan untuk menganalisis hasil proses implementasi program CSR “Mbok Jajan” dari PT. Sido Muncul sebagai tanggung jawab perusahan kepada Masyarakat untuk meningkatkan perekonomian masyarakat setempat. Target penelitian dilakukan di kelompok masyarakat mitra binaan Mbok Jajan yang berlokasi di Desa Bergas Kidul dan juga PT. Sido Muncul yang berlokasi di Ungaran, Kabupaten Semarang, Jawa Tengah. Penelitian ini menggunakan pendekatan kualitatif dengan menggunakan metode penelitian studi kasus. Pengumpulan data dalam penelitian ini dilakukan dengan menggunakan wawancara, observasi dan dokumentasi. Kajian ini menunjukkan bahwa dalam melaksanakan tanggung jawab sosialnya, PT Sido Muncul melakukan kegiatan yang dapat meningkatkan kesejahteraan dan kualitas sumber daya manusia. Hal ini juga dapat terwujud dalam menciptakan lapangan kerja bagi masyarakat. Manfaatnya adalah meningkatkan perekonomian masyarakat, menjalin hubungan baik antara perusahaan dengan pemangku kepentingan, dan meningkatkan citra positif perusahaan.
Oxidative stress in liver of streptozotocin-induced diabetic mice fed a high-fat diet: A treatment role of Artemisia annua L.
Authors: Ghanbari Mahshid , Shokrzadeh Lamuki Mohammad , Sadeghimahalli Forouzan , Habibi Emran , Sayedi Moqadam Mohammad Reza
Published: October 2023

Objective. The aim of this study was the investigation of a treatment role of Artemisia annua L. (AA) on liver dysfunction and oxidative stress in high-fat diet/streptozotocin-induced diabetic (HFD/STZ) mice.

Methods. Sixty mice were divided into 12 groups including control, untreated diabetic, and treated diabetic ones with metformin (250 mg/kg), and doses of 100, 200, and 400 mg/kg of water (hot and cold) and alcoholic (methanol) extracts of AA. Type 2 diabetes mellitus (T2DM) was induced in mice by high-fat diet for 8 weeks and STZ injection in experimental animals. After treatment with doses of 100, 200 or 400 mg/kg of AA extracts in HFD/STZ diabetic mice for 4 weeks, oxidative stress markers such as malondialdehyde (MDA), glutathione (GSH), and free radicals (ROS) were determined in the liver tissue in all groups.

Results. Diabetic mice treated with metformin and AA extracts showed a significant decrease in ROS and MDA concentrations and a notable increase in GSH level in the liver. Effectiveness of higher doses of AA extracts (200 and 400 mg/kg), especially in hot-water and alcoholic ones, were similar to and/or even more effective than metformin.

Conclusion. Therapeutic effects of AA on liver dysfunction showed that antioxidant activity of hot-water and alcoholic AA extracts were similar or higher than of metformin.
Income inequality among European households and their biological type
Authors: Grzywińska-Rąpca Małgorzata , Grzybowska-Brzezińska Mariola , Gornowicz Mirosław
Published: October 2023

In the socioeconomic development of each country, income rates constitute a measure of the economic situation. They are also the principle factor influencing social stratification. When discussing the income of European households in a regional approach, one may analyze changes, regional development indicators, and the degree to which needs are satisfied. It is underlined in the relevant literature that the differences observed across macroeconomic and microeconomic indicators are reflected in the phenomenon of income inequality, and their levels are also differentiated by the biological type of households. In view of the above, this study analyzed the financial standing of households from the spatial standpoint (selected EU countries) and considered the fractions of households isolated based on their biological composition in the light of inequality indices: Gini, Atkinson, and Theil. Inequality rates were computed using the median net equivalized income. The material examined in this study consisted of secondary data collected and published in the Eurostat database.
Implementing the Concept of Sustainable Development in an Organisation and Leadership Style – Selected Aspects
Authors: Gross-Gołacka Elwira , Ożga Joanna , Więcławski Łukasz
Published: October 2023

Objective

The aim of the article is to present two issues; the concept of sustainability and the style of organisational leadership. The authors‘ goal is to demonstrate that a participative management style supports the implementation of the concept of organisational sustainability.

Methodology

The research method used to achieve the objective is a critical analysis of the literature, an analysis of secondary research and a review of good practice.

Findings

As the presented examples of the implementation of the concept of sustainable development in specific companies show, the implementation of this type of idea is definitely conducive to the selection of a participative style of leadership.

Value Added

Active participation of subordinates in shaping the sustainable development strategy in the organisation and their awareness of the real influence on the vision is realised, to a very large extent determines the success of achieving the goals set by the leader (and worked out together with subordinates).

Recommendations

It is recommended to create a vision, according to which the company operates in the spirit of sustainable development, and to enable subordinates to actively participate in the implementation of the strategy and the systematic evaluation of its results.
Impact of Digitalization on Visual Arts Consumers’ Behavior during the COVID-19 Pandemic: Generational Perspective of Art Management
Authors: Szostak Michał , Baghzou Djalel , Kamran Muhammad , Bouameur Assala Belsem
Published: October 2023

Objective

The virtualization of the aesthetic experience influences the scope of artistry and creativity of visual artwork and the quality of participation in visual arts. Due to variances in perception qualities between individuals belonging to particular generations, this article aims to assess the impact of the participation form (physical/traditional or digital) on the aesthetic situation of recipients from certain generations. The quality of participation in visual arts was assessed using ten criteria.

Methodology

Quantitative data exploration from a survey undertaken using a digital instrument provided by SURVIO based on a worldwide sample from 22 countries (n = 87). Due to the relatively ephemeric character of the research problem, an additional qualitative analysis of the statistical results was performed.

Findings

The participation form (online or in-real) in visual arts determines participation quality level of the aesthetic situation of particular generations. Significant differences exist among generations in online and in-real participation in visual arts and between particular forms of participation. This article did not look for the reasons for these differences; only additional comparative qualitative research can try to reveal them.

Value Added

It is the first analysis of the impact of digitalization of visual arts from the perspective of visual arts consumers’ behavior based on the components of aesthetic situation theory.

Implications

The research results should be of interest to: 1) Visual arts creators looking for the optimal way of distributing artworks among recipients from different generations; 2) Visual arts managers and marketers for a multi-layered understanding of generation-diversified visual arts recipients’ perspectives and their preferences about participation in visual arts in-real or digitally; 3) Visual arts customers (recipients) who wish to compare their own views about participating in visual arts with those of other recipients belonging to certain generations.
Problems with the Concept of Whistleblowing in the Intercultural Perspective and the EU Directive 2019/1937
Authors: Ignatowski Grzegorz
Published: October 2023

Objective

The aim of the article is to verify the concept of whistleblowing, taking into account the literature on the subject and the EU Directive 2019/1937 and its understanding by Polish and Ukrainian respondents, i.e. those who belong to the EU and those who aspire to it and have grown up in different cultures.

Methodology

The research analysed literature in English and used qualitative methods in the form of an in-depth individual interview with Polish and Ukrainian managers.

Findings

The research revealed that the understanding of whistleblowing in EU Directive 2019/1937 reflects years of discussion and goes beyond the original understanding of the term. Respondents understand the advantages and drawbacks of internal and external whistleblowing, the anonymity of the whistleblower and their position in the organisation.

Originality/Value

The article clarifies the concept of a whistleblower and explains the problems with its interpretation and implementation, allowing for further discussion on its topic in a reliable way. The understanding of whistleblowing contained in the EU Directive and the respondents’ concerns are relevant to the implementation of the Directive, especially in areas that concern the whistleblower’s reliability and anonymity.

Recommendations

Further research should be conducted among EU members and candidates for EU structures. Quantitative research will determine the acceptance of the issue and indicate the difficulties of implementation. Further research should focus on the reliability of non-employed whistleblowers and their anonymity.
Numerical simulation of dense-phase pneumatic conveying in vertical pipe for gasifier
Authors: Gao Yuzhen , Chan Choon Kit
Published: October 2023

The stable transportation of pulverized coal in the vertical pipe is significant for the operation of the gasifier. There are few studies on the flow characteristics and flow pattern transition of particles in vertical pipes with small diameters. This paper has modeled and analyzed the flow characteristic of powder in dense-phase pneumatic conveying through 25 mm vertical pipe using CFD. Firstly, the grid independence is verified to determine the optimal mesh size. Then, the influences of different solid loading ratios (SLRs) and conveying velocities on particle flow characteristics, flow stability, and flow pattern transition are investigated. The results show that the flow pattern in the vertical pipe changes from annular flow to uniform flow at high SLR and low conveying velocity. Moreover, the evolution regulation of resistance characteristics under different conveying velocities is further revealed. Considering the conveying stability and economic benefit, the most suitable conveying velocity is 6 m/s.
Application of a modified method of humic acids extraction as an efficient process in the production of formulations for agricultural purposes
Authors: Nieweś Dominik , Marecka Kinga , Braun-Giwerska Magdalena , Huculak-Mączka Marta
Published: October 2023

Due to their properties, humic acids (HA) can interact with macro- and micronutrients and retain plant nutrients in the soil profile. The aim of the presented work was to develop a new integrated 4-step process for the isolation of humic acids from peat with their simultaneous enrichment in macronutrients. The study demonstrated the possibility of replacing traditional solutions used in the extraction of humic acids with solutions that are a source of macronutrients. For the alkaline extraction step, a process assisted with ultrasound was implemented, which allowed to increase the efficiency of humic acids isolation. Optimization of this step has shown that, with the application of ultrasound in the new procedure, it is possible to obtain the humic acids isolation efficiency of more than 60%. The qualitative analysis of the products obtained confirmed the presence of structures characteristic of humic acids, including key functional groups.
Influence of Effluent Quality from Sludge Dewatering on Electricity Consumption
Authors: Hyrycz Michał , Ochowiak Marek , Krupińska Andżelika , Włodarczak Sylwia
Published: October 2023

During the dewatering process, centrate is produced, which is returned to the beginning of the technological system. The quality of the resulting centrate, and therefore the size of the returned load of pollutants, affects the demand for electricity in the process of biological wastewater treatment. The following study presents the results of centrate quality tests at five wastewater treatment plants located in Poland. The dependence between suspended solids content and ammonia and COD concentrations in the centrate was determined. It was estimated that an increase in the overall suspended solids leads to an increase in COD by about 1.15 kgCOD/kgTSS. No correlation was found between TSS concentration and ammonia. It was calculated that the complete elimination of suspended solids from the sludge would reduce the electricity consumption for all five objects by about 535 MWh/y.
Modelling of Lake Waves to Simulate Environmental Disturbance to a Scale Ship Model
Authors: Rak Andrzej , Miller Anna
Published: October 2023

In the development of ship motion control systems, software simulations or scale model experiments in pools or open water are very often carried out in the verification and testing stages. This paper describes the process of building a software wave simulator based on data gathered on the Silm Lake near Iława, Poland, where scale ship models are used for research and training. The basis of the simulator structure is a set of shaping filters fed with Gaussian white noise. These filters are built in the form of transfer functions generating irregular wave signals for different input wind forces. To enable simulation of a wide range of wind speeds, nonlinear interpolation is used. The lake wave simulation method presented in this paper fills a gap in current research, and enables accurate modelling of characteristic environmental disturbances on a small lake for motion control experiments of scale model ships.
Fault Diagnosis of ME Marine Diesel Engine Fuel Injector with Novel IRCMDE Method
Authors: Shi Qingguo , Hu Yihuai , Yan Guohua
Published: October 2023

As an important component of the fuel injection system, the fuel injector is crucial for ensuring the power, economy, and emissions for a whole ME (machine electronically-controlled) marine diesel engine. However, injectors are most prone to failures such as reduced pressure at the opening valve, clogged spray holes and worn needle valves, because of the harsh working conditions. The failure characteristics are non-stationary and non-linear. Therefore, to efficiently extract fault features, an improved refined composite multi-scale dispersion entropy (IRCMDE) is proposed, which uses the energy distribution of sampling points as weights for coarse-grained calculation, then fast correlation-based filter(FCBF) and support vector machine (SVM) are used for feature selection and fault classification, respectively. The experimental results from a MAN B&W 6S35ME-B9 marine diesel engine show that the proposed algorithm can achieve 92.12% fault accuracy for injector faults, which is higher than multiscale dispersion entropy (MDE), refined composite multiscale dispersion entropy (RCMDE) and multiscale permutation entropy (MPE). Moreover, the experiment has also proved that, due to the double-walled structure of the high-pressure fuel pipe, the fuel injection pressure signal is more accurate than the vibration signal in reflecting the injector operating conditions.
Synergistic Performance Degradation of Marine Structural Elements: Case Study of Polymer-Based Composite and Steel Hybrid Double Lap Joints
Authors: Baykal Halis Haluk , Neser Gokdeniz
Published: October 2023

The degradation of structures under the influence of a marine environment tends to be rapid and disruptive compared to that of structures that are far away from these influences. Efforts to consider these impacts in the design phase are increasing, with a view to the construction of more sustainable structures. However, experimental data from which designers and builders can benefit cannot be found in the relevant literature, especially when it comes to the effects of composite degradation. In this study, we experimentally investigate the combined effects of degradation factors such as a drying-wetting cycle, the shape of the structure, the variety of materials used in the structure, and the differences in the manufacturing of the materials . The structure chosen as an example is a hybrid structural double lap joint composed of epoxy resin, fibreglass composite, and steel, which is widely used in ship structures. The experiments considered four aging periods (zero, 30, 60 and 90 days) under a wet-dry cycle in a programmable corrosion chamber, two overlap lengths (short and long), two surface roughnesses of the steel parts (50 and 90 μm), and two surface preparation alternatives (uncoated and coated with epoxy primer). The synergistic effects of these parameters on the tensile strength, deformation and toughness of the joints were evaluated, and suggestions are made for ship designers. The attention of interested parties, and particularly ship designers, is drawn to the comparative effects of these degradation agents on performance.
Design of an Autonomous IoT Node Powered by a Perovskite-Based Wave Energy Converter
Authors: Drzewiecki Marcin , Guziński Jarosław
Published: October 2023

This paper presents the results of experimental research focused on wave energy harvesting and its conversion to power Internet of Things (IoT) devices. The harvesting and conversion process was performed using a wave energy converter (WEC) consisting of a lead zirconate titanate piezoelectric ceramic perovskite material and a prototype power electronic circuit. The designed WEC was considered as a power supply for an end node device (END) of an IoT network. The END consisted of a long-range radio module and an electronic paper display. A set of physical experiments were carried out, and the results confirmed that an energy surplus was supplied by WEC compared to the energy consumed by the END. Hence, the proposed scheme was experimentally validated as a convenient solution that could enable the autonomous operation of an IoT device. The use case presented here for the proposed WEC was analysed for selected sea areas on the basis of wave statistics. The novelty of this paper arises from an investigation that confirms that WECs can significantly contribute to the development of wireless and mobile IoT communication powered by freely available sea wave energy.
Toward Safe and Efficient Recovery of Gas Munitions Dumped at Sea
Authors: Rowiński Lech , Truong Thanh Hai , Nguyen Phuoc Quy Phong
Published: October 2023

The proposal of a system for the safe recovery of unexploded ordnance (UXO), chemical weapons (CW) and chemical warfare agents (CWA) dumped at sea mainly after WWI and WWII is described in this work. The proposed solution addresses the tasks required to neutralise thousands of tons of dumped material and the currently available solutions and proposed ideas. Requirements concerning the features of a recovery system are defined and scrutinised, these being intended to ensure the safety of this phase of the UXO/CW neutralisation process. To meet this requirement, the concept of a remotely operated, two-component working size underwater vehicle is proposed, supplemented by a properly sized and outfitted surface platform that is an important part of the recovery system. Finally, the basic components of the proposed system configuration are characterised, together with their functions during the recovery of dangerous CWA-related objects.
Role of Green Logistics in the Construction of Sustainable Supply Chains
Authors: Pham Nguyen Dang Khoa , Dinh Gia Huy , Pham Hoang Thai , Kozak Janusz , Nguyen Hoang Phuong
Published: October 2023

The global supply chain has been growing strongly in recent years. This development brings many benefits to the economy, society, and human resources in each country but also causes a large number of concerns related to the environment since traditional logistics activities in the supply chain have been releasing a significant amount of emissions. For that reason, many solutions have been proposed to deal with these environmental pollution problems. Among these, three promising solutions are expected to completely solve environmental problems in every supply chain: (i) Application of blockchain in the supply chain, (ii) Use of renewable energy and alternative fuels, and (iii) Design of a closed supply chain. However, it seems to lack a comprehensive study of these solutions aiming to overcome the drawbacks of traditional logistics. Indeed, this work focuses on analyzing and evaluating the three above-mentioned solutions and the impacts of each solution on solving problems related to traditional logistics. More importantly, this work also identifies critical factors and challenges such as policies, laws, awareness, and risks that are found to be remarkable difficulties in the shifting progress of traditional logistics to green logistics. Finally, directions for developing and deploying green solutions to the logistics, supply chain, and shipping sectors toward decarbonization strategies and net-zero goals are discussed in detail.
БИОХИМИЧЕСКАЯ ОТВЕТНАЯ РЕАКЦИЯ БЕРЕЗЫ ПОВИСЛОЙ (BETULA PENDULA) НА НАКОПЛЕНИЕ ТЯЖЕЛЫХ МЕТАЛЛОВ В ГОРОДСКОЙ СРЕДЕ
Authors: Петухов Александр Сергеевич , Кремлева Татьяна Анатольевна , Петухова Галина Александровна , Хритохин Николай Александрович
Published: October 2023

Цель работы ‒ поиск взаимосвязи между биохимическими показателями березы повислой (Betula pendula L.) и накоплением тяжелых металлов в г. Тюмени. Пробы почв и растений были отобраны в условно-чистом районе, вблизи промышленных предприятий и транспортных узлов города. Содержание металлов в почвах и растениях определяли методом атомно-эмиссионной спектроскопии, биохимические показатели (продукты перекисного окисления липидов, содержание пигментов фотосинтеза, флавоноидов и активность каталазы) ‒ фотометрически. Накопление металлов почвами убывало относительно контроля в ряду: Cd>Pb>Cr>Ni>Zn>Cu>Fe>Co>Mn. Аккумуляция металлов в листьях березы убывала относительно контроля в ряду: Pb>Cr>Fe>Co>Cu>Ni>Zn>Mn>Cd. Загрязнение городской среды приводило к росту окислительных процессов в клетках березы, что сопровождалось снижением содержания флавоноидов и активности каталазы. Увеличение содержания хлорофилла и каротиноидов в листьях березы стало главным адаптационным механизмом к накоплению металлов, а изменение активности каталазы оказалось наиболее чувствительной ответной реакцией. Выявлены положительные корреляции между содержанием металлов и концентрацией продуктов перекисного окисления липидов и пигментов фотосинтеза. Содержание флавоноидов и активность каталазы отрицательно коррелировали с содержанием металлов в березе и почве.  Согласно результатам факторного анализа степень влияния металлов на биохимические показатели убывала в ряду: Zn ≈ Cu > Cr > Ni ≈ Co ≈ Pb ≈ Cd > Fe ≈ Mn
Telhado verde na captura de CO2: Estudo de caso em Garanhuns-PE
Authors: Oliveira Tamara de Lima , Vigoderis Ricardo Brauer , De Melo Eusileide Suianne Rodrigues Lopes , Leite Glaudemir Santos , Da Silva João Manoel , Da Silva Paulo Henrique Bezerra Barbosa , Silva Ana Marisa Albuquerque , Pachêco Carla Renata Xavier
Published: October 2023

Objetivo: Análise dos impactos ambientais da expansão urbana em Garanhuns – PE e a utilização de telhado verde na compensação do CO2. 
 
Referencial Teórico: Por muitos anos se acreditava que os recursos naturais eram inesgotáveis, e não se falava em degradação dos ecossistemas ou desequilíbrios causados pelos impactos ambientais com as variações de temperatura, degelos e grandes mudanças atmosféricas isso foi desmistificado. A sustentabilidade surgiu para equilibrar e economia e os cuidados necessários para o meio ambiente. Práticas mais sustentáveis surgem como incentivo para as grandes cidades, juntamente métodos construtivos sustentáveis.
 
Método: A metodologia utilizada teve como objetivo uma abordagem exploratória e a técnica de pesquisa bibliográfica, como base em suas hipóteses e teorias, para torna-lo objetivo e facilitando sua compreensão. Utilizou-se ainda um estudo de caso tipo explicativo, através de técnicas de levantamento de dados, como a modelagem ambiental. Quanto aos procedimentos metodológicos caracterizou-se como bibliográfico e de simulação.
 
Resultados: Como principal resultado o estudo observou que, com práticas construtivas sustentáveis, é possível ter uma diminuição significativa na captura de CO2, na cidade de Garanhuns, tornando possível a preservação do clima e meio ambiente. Futuramente, é necessário que pesquisadores, representantes da sociedade civil, órgãos públicos e indústria se unam para que os empreendimentos imobiliários sejam implementados seguindo o tripé da sustentabilidade, como preconizam os Objetivos do Desenvolvimento Sustentável da ONU.
 
Implicações da pesquisa: Os resultados deste trabalho são de grande relevância para o desenvolvimento sustentável na construção civil, não só apenas do município de Garanhuns, devido ao impacto direto com a temperatura da cidade, mas sim de todo o agreste Pernambucano. Com o potencial de se tornar um trabalho que pode ser utilizado como referência na construção de residenciais futuros.
 
Originalidade/valor: Utilizando métodos construtivos sustentáveis em empreendimentos populares, espera-se contribuir de forma relevante para a problemática que se apresenta, pois se de um lado existe um déficit imobiliário, principalmente atingindo famílias em vulnerabilidade social, por outro, é imperativo que tal expansão urbana ocorra de uma forma sustentável, como preconiza o Objetivo do Desenvolvimento Sustentável 11 (Cidades e Comunidades Sustentáveis) e o objetivo de número 7 que traz como proposta (assegurar o acesso confiável, sustentável, moderno e a preço acessível a energia para todas e todos) da ONU.
Цифровая трансформация производства регионального сувенирного продукта
Authors: Клочко Инна Леонидовна , Королева Людмила Анатольевна , Слесарчук Ирина Анатольевна , Зайцева Татьяна Александровна
Published: October 2023

Стремительное развитие цифровых технологий активизирует интерес общества к проблемам трансформации социальной реальности, появления новой цифровой культуры, изменения жизненного мира человека и связанными с этим преобразованиями всех сфер экономики, включая туристическую отрасль. Индустрия 4.0 требует нового взгляда на производство, в частности региональной сувенирной продукции, предполагающего изменение последовательности основных этапов ее создания. На первый план выходят вопросы взаимодействия с потребителем в цифровой среде. В статье рассматриваются аспекты переориентирования сферы создания функциональной сувенирной продукции с элементами культурного кода региона в условиях цифровой трансформации производства за счет нового подхода. Целью работы являются формулировка подхода и определение содержания этапов производства регионального сувенирного продукта в условиях цифровой трансформации. Исследование выполнено с использованием концептуального, системного подходов, смешанного подхода к кастомизации в рамках модульного метода, программированных методов формообразования, реализуемых посредством приемов комбинаторики и трансформации. В работе предложен концептуальный подход к созданию сувенирной продукции в условиях цифровой трансформации производства, предполагающий в отличие от традиционной последовательности изменение порядка выполнения этапов производства (проектирование – продажи – изготовление) и реализацию первых двух этапов в цифровой среде. Сформулирована концепция кастомизированного подхода к производству регионального сувенирного продукта с использованием современных мобильных устройств, согласно которому у потребителя появится возможность через виртуальную среду погрузиться в реальную атмосферу территории, отражающей привлекательность, уникальность, своеобразие и неповторимость региона. Определены последовательность и содержание этапов создания мобильного приложения-конструктора сувенирной продукции Приморского края: разработка прототипа приложения, разработка сувенирного продукта и реализация приложения. Полученные результаты работы будут востребованы при проектировании и изготовлении сувенирной продукции региональной направленности. Ключевые слова: региональная сувенирная продукция, цифровая трансформация, мобильное приложение
HUBUNGAN RELIGIUSITAS DENGAN FLOW AKADEMIK PADA SISWA SMP YPM 4 BOHAR
Authors: Ar Rahma Alissa Elma Zakiyah , Nastiti Dwi
Published: October 2023

This research is motivated by the problem of the academic flow phenomenon experienced by students, such as students having difficulty concentrating, being less happy when they get homework, and students who will learn if they get encouragement from parents or teachers. This research aims to determine the relationship between religiosity and academic flow in students. This research uses a quantitative correlational type of research. The number of subjects used in this research was 234 students of Junior High School YPM 4 Bohar, and the sample was determined using the proportionate stratified random sampling technique. Research data was collected using a religiosity and academic flow scale compiled by the researcher himself. Analysis of the results of this research used a correlation test assisted by the JASP application program version 0.16. The results of this research data analysis show a correlation coefficient value of 0.582 with a significance of 0.001 (< 0.05), which means the research hypothesis is accepted. There is a significant positive relationship between religiosity and academic flow in YPM 4 Bohar Middle School students. In this study, the religiosity factor had an influence of 44.6% in increasing academic flow.
PENGARUH ACADEMIC PEER SUPPORT TERHADAP SCHOOL ENGAGEMENT PADA SISWA SMP “X” DI BANDUNG
Authors: Biantoro Theresa Diana Putri , Savitri Jane
Published: October 2023

This study aims to determine the effect of the academic peer support dimension on school engagement at SMP "X" in Bandung. The subjects in this study were the entire population of SMP "X" students with a total of 160 students out of 171 students (there were 4 students who were not willing and 7 students not present. The measuring tool used is Academic Peer Support using the PFASS (Perceived Peer/Friend Academic Support Scale) measuring tool compiled by Jennifer Chen (2005) based on Jennifer Chen`s theory and has been translated by researchers, consisting of 25 items with a reliability of 0.744. The School Engagement measuring tool was developed by Alvin Gultom (2020) based on Friedricks' theory (2004), consisting of 27 items with a reliability of 0.722. This research method uses the effect method which is analyzed by linear regression test using the SPSS 21.0 Version Program. Based on data processing, the results showed that there was a significant influence on the dimensions of academic peer support on school engagement (F = 11,500, R2 = 22.9%; p <0.05), namely interpersonal support (ß= 0.22 , p > 0.05), cognitive support (ß = 0.646, p < 0.05), emotional support (ß = 0.243 , p > 0.05) and instrumental support (ß = 0.243, p > 0.05). Suggestions from researchers are facilitating the occurrence of cognitive support from peers to other fellow students. Cognitive support can be obtained by involving students who excel in groups to support students who have learning difficulties.