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1926 research outputs found
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Cooling Tower Performance Analysis Using Range and Approach Method Unit 4 in Pt. Pertamina Geothermal Energy Kamojang Area
Full text linkGeothermal Power Plant (PLTP) is one of the renewable energy sources that supports the national energy transition. One of the important components in the PLTP system is the cooling tower which functions to lower the temperature of the condensed water so that it can be reused in the thermodynamic cycle. This study aims to analyze the performance of the cooling tower at PLTP Kamojang Unit 4 owned by Januari Pertamina Geothermal Januari using the Range and Approach methods based on the ASME PTC 23-2003 standard. Data were obtained from operational logsheets during the period from 4 to 10 January 2025 and analyzed using Microsoft Excel. The parameters observed included inlet water temperature, outlet water temperature, and wet bulb air temperature. The results of the analysis showed that the range value ranged from 35.61°C to 36.48°C, the approach value between 4.73°C to 5.12°C, and the effectiveness of the cooling tower was in the range of 87.42% to 88.52%. These values indicate that the cooling tower is still operating at high efficiency. Daily fluctuations in these values are influenced by environmental factors such as air humidity, wet bulb temperature, and variations in cooling load. In addition, internal factors such as fan conditions, water spraying, cooling water quality, and media packing conditions also contribute to system performance. Based on these results, it is recommended that regular monitoring and preventive maintenance be carried out to maintain the efficiency of the cooling system. With improvements and digitalization of monitoring, the cooling tower at PLTP Kamojang Unit 4 can continue to support power plant operations optimally and sustainably
Material Volume Efficiency Study Using Tekla Structure and Revit Software
Full text linkThe development of technology in the construction industry drives the need for efficient and accurate planning methods, especially in material volume estimation which affects the budget and smooth running of the project. This study aims to compare the efficiency of material volume estimation between Two Building Information Modelling-Base software, namely Tekla Structure and Autodesk Revit. The study was conducted on the construction project of DPRD Building in North Lombok Regency. The method used includes modelling the main building structure such as foundations, sloofs, columns, beams, floor slabs, and roof structures in both software base on the same technical data. The estimated concrete volume and reinforcement weight data from each software were then analyzed quantitatively and compared with the conventional method. The results show that the concrete volume of the conventional method is about 7,8% larger than the results from Revit and Tekla. Meanwhile, the conventional method’s estimated reinforcement wight is up to 17,6% higher. Each software provides almost identical outputs, albeit with different approaches and interface. The efficiency is particularly noticeable in structural elements such as beams and floor slabs. These findings suggest that the use of BIM in the planning process can improve the accuracy of material estimation, minimize potential waste, and support more effective and accurate construction planning
Hearing Screening in Infants in the Work Area Community Health Center
Full text linkThe early discovery of hearing impairment among infants leads to essential intervention services which aid proper language and cognitive development. The administration of Otoacoustic Emission (OAE) screening stands as the primary testing method inside newborn and infant hearing screening programs throughout the world. Research on the implementation of Otoacoustic Emission testing in community health environments along resource-limited regions remains insufficient. The research investigated OAE hearing screening outcomes in Padanglampe Health Center infants from 24 months old through Padanglampe Health Center in Pangkep Regency including screening results and age and gender dynamics. The study used a cross-sectional observational approach with nine infants selected from a total group that satisfied the study criteria. OAE testing procedure served to screen the hearing of each participant. The researchers performed both descriptive and inferential analysis of gathered data. Fisher’s Exact Test evaluated the relationships between gender data along with screening outcomes and between different age intervals and their corresponding screening results. The calculations of odds ratios enabled investigators to determine how likely refer results occurred between male and female participants. The audiometric test with OAE technology showed positive results for eight out of nine screened infants but produced a refer outcome for the remaining one subject. A female infant under three months of age served as the subject in this refer case. Fisher’s Exact Test results demonstrated that gender and screening outcome relationship was non-statistically significant with a p value of 1.000 and results for age-based associations produced no significant findings
Implementation of Human Resource Management in Enhancing Teacher Performance at Phatnawitya School, Yala, Thailand
Full text linkThis study aims to examine the implementation of Human Resource Management (HRM) in enhancing teacher performance at Phatnawitya School, Yala, Thailand, as well as to identify the obstacles faced in this process. A qualitative research approach was employed to gain an in-depth understanding of HRM implementation in the school setting. The findings reveal that HRM practices at Phatnawitya School have been effectively carried out, as evidenced by structured human resource planning, recruitment of qualified professionals, a systematic selection process, and job placements that align with school needs and teacher competencies. Additionally, the implementation of planned training programs and comprehensive performance evaluations contributes to overall improvement in teacher performance. Despite these strengths, several challenges persist, particularly regarding punctuality in morning attendance. Delays in teacher attendance negatively impact instructional time, reducing opportunities for both in-class and extracurricular learning. This issue presents a significant barrier to maximizing students’ knowledge acquisition. Addressing these obstacles through enhanced HRM strategies is essential to ensuring optimal teacher performance and educational outcomes at Phatnawitya School
Sentiment Analysis of Bamboo Charcoal: Comparing Machine Learning Algorithms for Effective Insights
Full text linkThis research aims to analyze sentiments toward bamboo charcoal on social media, with a focus on public perception in the global market in English. Using data collected from the social media platform X, this study applies various machine learning algorithms, including Support Vector Machine (SVM), K-Nearest Neighbors (KNN), Deep Learning, Naïve Bayes, Decision Tree, and Gradient Boosted Trees, with TF-IDF as the text representation. The analysis reveals that the SVM model achieved the most accurate result of 92.33%, demonstrating its effectiveness in sentiment detection. The study also found that the KNN model performed well, achieving an accuracy of 92.26%, although slightly lower than SVM. These findings highlight the growing interest in bamboo charcoal as a sustainable product, reflecting positive sentiments in the data. Additionally, the Deep Learning model also showed promising results, although it was slightly less effective than SVM and KNN. However, there were also notable concerns regarding the environmental impact of bamboo harvesting, which were primarily expressed in posts. The Decision Tree model, while useful, did not perform as well as the other models, indicating the need for further refinement. Future research could explore a broader range of social media platforms, models, and languages to gain a more comprehensive understanding of global perceptions. Furthermore, integrating sentiment analysis with real-time monitoring could help stakeholders respond more effectively to shifts in public opinion
The Influence of Music Tempo on Employee Productivity in Fabrication using the Cognitive Failure
Full text linkThis study aims to determine the effect of music tempo on work productivity and the level of cognitive failure among employees in the fabrication division of PT. Adi Joyo Kusumo. Music is used as an intervention to address boredom and stress caused by monotonous work. This research employs the Cognitive Failure Questionnaire (CFQ) method distributed to 12 employees, and observations were made on production quantities over seven days under three conditions: without music, fast tempo music, and slow tempo music. The results indicate that fast tempo music yields the highest productivity level with a total production of 26 units, followed by the no music condition (23 units) and slow tempo music (21 units). Validity tests show that all CFQ items are valid, and reliability tests yield a Cronbach’s Alpha value of 0.921, indicating reliability. ANOVA tests show a significance value of 0.000 (p < 0.05) and an F value of 17.078, indicating a significant effect of music tempo on cognitive failure levels. Although fast tempo music can enhance work performance, the noise level reached 89 dB, disturbing other divisions. This study concludes that fast tempo music can be used as a productivity enhancement strategy, provided that noise levels are controlled to avoid negative impacts on other work environments
Policy Formulation Based on Local Traditions
Full text linkThis study aims to analyze the process of formulating public policies based on local traditions implemented through Paruman in Bayung Gede Traditional Village, Kintamani District, Bangli Regency, Bali Province. Paruman was chosen as the object of research because it is a traditional deliberation forum that still exists and is used in making decisions on village development. The research method used is qualitative with data collection techniques through literature studies and field studies in the form of observation, interviews, and documentation. Data analysis was carried out descriptively by referring to the stages of public policy formulation. The results of the study indicate that the existence of Paruman is influenced by internal factors of the indigenous community and external factors from the government. The implementation of Paruman has similarities with village deliberations in general, but differs in terms of the basis for decision-making that refers to local customary values and traditions. Paruman in Bayung Gede Village has fulfilled the stages of policy formulation, starting from identifying problems, setting agendas, selecting alternatives, to making decisions. The conclusion of this study shows that the formulation of public policies based on local traditions through Paruman in Bayung Gede Traditional Village uses a participatory and contextual deliberative model with the cultural values of the local community
Teacher Discourse in Postdigital Education: A Critical and Systematic Literature Review
Full text linkThis study reviews research trends on teacher discourse in postdigital education by examining 26 Scopus-indexed publications from 2019 to 2024 retrieved using the keywords “postdigital education” and “teacher.” Findings reveal limited scholarly attention, with the Postdigital Science and Education journal leading in publication volume. A cluster analysis uncovered ten thematic groupings higher education, digital citizenship, professional digital competence, critical pedagogy, teacher education, COVID-19 responses, and datafication, among others. Seminal contributions include Rapanta et al. (2020) on teacher presence in online instruction; Hrastinski et al. (2019) on educators’ critical imaginaries amid AI and robotics; Green et al. (2020) on transition design for remote learning; Fawns et al. (2021) on ecological datafication frameworks; and Örtegren (2022) on digital competence for citizenship. By synthesizing these insights, the study reconceptualizes teachers as relational, ethical, dialogical, critical, and transformative “subjects-in-becoming” who actively shape learning environments, counteract algorithmic reduction, and foster democratic empowerment. It argues that future teacher-governance models must embrace socio-technical complexity through enhanced digital competence, locally grounded postdigital identities, critical pedagogy and curriculum co-creation, ecological data practices, and flexible, dialogical pedagogies aligned with digital-citizenship ethics. These insights inform future research and policy directions in education
Education with the Paradigm of Integration-Interconnection of Science and Islam in Responding to the Challenges of Modernity at the Integral-Interconnection
Full text linkClassroom-format intelligent character education (CFI-CE) combined with content mastery services (CMS) can foster the development of intelligent and honest character values in students. The purpose of this study was to examine the influence of CFI-CE and CMS on the development of intelligent and honest character values in students. Multiple linear regression analysis was used to test the proposed research hypotheses. The study population comprised all students in the Guidance and Counseling Study Program, Faculty of Teacher Training and Education, Nias University. A purposive sampling method was used to select 45 students. The data collection tool used was a closed-ended questionnaire. The results revealed that the CFI-CE and CMS service significantly contributed to the development of intelligent and honest character values in participants, both collectively and partially. Every 1.00% increase in CFI-CE and CMS was followed by an increase in students' intelligent and honest character. Counselors are advised to plan and implement this service to foster the development of intelligent and honest character values in students
Teachers' Reception of the Heroic Ideology of the Novel "Poor People Are Prohibited from Going to School" Based on Gender Classification
Full text linkLiterary works are a depiction of human life through the outpouring of expression and thought. The ideology of heroism is one ideology that can be found in every Indonesian novel. However, there is a phenomenon of the interpretation of the ideology of heroism by teachers that is still confusing. Based on this problem, teachers are needed to be open in interpreting the ideology of heroism. The right solution is through the reception of the ideology of heroism in the novel Orang Miskin Dilarang Sekolah (Poor People Are Forbidden to Go to School). The approach of this research is the sociology of literature by adopting the research design of Moser (1989:1799-1825). The results of the reception of the ideology of heroism of SMK teachers in Tegal Regency towards the novel Orang Miskin Dilarang Sekolah by Eko Prasetyo based on gender classification show several differences. According to male teachers, heroism is interpreted in the form of love for the country, upholding unity, expertise in using knowledge as a weapon, and loyalty to principles. Meanwhile, according to female teachers, heroism appears in the form of prioritizing common interests, willingness to sacrifice, and sincerity. However, both agree that heroism also involves fighting for the rights of others and having a fighting spirit