Portal E-Journal System PNUP (Politeknik Negeri Ujung Pandang)
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Studi Penggunaan Bonggol Jagung (Frumentum Cobs) Sebagai Filler Terhadap Karakteristik AC-BC (Asphalt Concrete-Binder Course)
Get PDFPemilihan bahan yang digunakan dalam pembuatan jalan menjadi salah satu faktor yang mempengaruhi kualitas jalan, yaitu aspal, agregat dan bahan pengisi (filler). Dalam mendukung pelestarian alam, maka muncul ide untuk memanfaatkan bahan limbah dari aktivitas manusia sebagai bahan pengganti filler yaitu abu bonggol jagung (Frumentum Cobs). Pemanfaatan bonggol jagung diharapkan dapat mengurangi jumlah limbah yang mencemari lingkungan. Tujuan dilakukan penelitian ini agar mengetahui kelayakan bonggol jagung sebagai bahan filler. Serta, mengetahui nilai karakteristik dari penggunaan bonggol jagung sebagai filler dengan variasi 0%, 20%, 40%, dan 60%. Adupun batu pecah yang dipakai berasal dari quarry Bili-Bili dan bonggol jagung diambil di Kabupaten Soppeng. Cara yang dipakai dalam penelitian ini diantaranya analisis laboratorium pengujian agregat, aspal dan filler yang menghasilkan benda uji. Selanjutnya, penggunaan marshall test pada benda uji dilakukan untuk mendapatkan nilai KAO dan subtitusi kelayakan filler bonggol jagung. Adapun, hasil dari pengujian pada benda uji terhadap karakteristik filler arang bonggol jagung sebagai bahan subtitusi filler diperoleh nilai (KAO) yaitu 5,98. Selain itu, kadar filler arang bonggol jagung yang layak digunakan ialah variasi 20% dengan nilai VIM, VMA, VFB, Stabilitas dan Flow memenuhi spesifikasi bina marga 2018. Hasil penelitian ini diharapkan berguna dalam mengurangi jumlah limbah, serta sebagai referensi penelitian selanjutnya
Pengaruh Slag Nikel Pada Beton Mutu Tinggi Dengan Perawatan Steam Curing
Get PDFPenelitian ini bertujuan untuk mengetahui sifat mekanis beon mutu tinggi dengan penggunaan slag nikel dan metode perawatan steam curing. Penggunaan Slag nikel dalam campuran beton diharapkan memiliki pengaruh pada sifat mekanik beton , serta dapat meningkatkan nilai kuat tekan serta nilai modulus elastisitasnya. Pada penelitian persentase slag yang digunakan yaitu 10%, 30%, 50%, 70% dan 100% dan dilakukan pencampuran serta proses perawatan dengan metode steam curing setelah beton di cetak, dan dilanjutkan dengan perawatan biasa dan dilakukan pengujian tekan dan modulus elastisitas pada umur 28 hari. Hasil pengujian yang dilakukan diperoleh nilai kuat tekan yang memenuhi kuat tekan rencana yaitu pada variasi 30 % dengan rata – rata sebesar 40,37 Mpa, 50% dengan rata-rata sebesar40,48 Mpa, 70% dengan rata-rata 45,01 Mpa dan 100% dengan rata-rata 47 Mpa. Dari penelitian ini disimpulkan bahwa Slag nikel dengan bentuk gradasinya yang seragam dapat mengisi rongga antara kerikil sehingga dapat memberikan material yang kompak dan memiliki kuat tekan yang tinggi. Selain itu penggunakan metode steam curing saat beton telah berumur 24 jam dapat menjaga proses hidrasi semen lebih baik dari pada metode perawatan biasa, sehingga dapat meningkatkan kinerja dari beton itu sendiri
Corpus Linguistics Today: A Qualitative Approach
Get PDFCorpus linguistics, the study of language form and function using computerized corpora, involves collecting extensive electronic texts to analyze language usage. It serves various objectives: qualitative analysis, exploring nuances in language use, and quantitative analysis, identifying patterns in word usage and collocations. Corpus linguistics tracks language variation over time, aids language teaching, supports lexicography, and contributes to discourse analysis. Its evolution grew from the 1950s to the present day, marked by technological advancements and theoretical integration. The article underscores the significance of qualitative analysis in providing contextual insights into language use. The systematic creation of a corpus involves steps like text selection, data collection, preprocessing, annotation, and quality control. Various qualitative analysis techniques, from discourse analysis to lexical semantics, offer diverse perspectives for studying linguistic phenomena. This article provides a concise overview of corpus linguistics, its evolution, the importance of qualitative analysis, corpus creation, and qualitative analysis techniques
Navigating Language Proficiency Challenges: Enhancing Business Presentations in Indonesian Vocational Higher Education
Get PDFThis article explores the intricate landscape of language proficiency challenges faced by students in Indonesian Vocational Higher Education, with a specific focus on refining their skills for effective business presentations. As English proficiency emerges as a critical asset in the globalized business arena, understanding the nuanced obstacles encountered by students becomes paramount. Through a mixed-methods research approach employing questionnaires and interviews, the study aims to identify specific language challenges and explore tailored strategies for improvement. The research delves into students' experiences, addressing vocabulary proficiency, pronunciation concerns, and the impact of language proficiency on the overall effectiveness of business presentations. By shedding light on these challenges and seeking insights from students, this article aims to contribute practical recommendations for enhancing language proficiency, bridging the gap between academic preparation and the demands of professional business communication in the Indonesian Vocational Higher Education contex
Identifying Pronunciation Errors in English Among Postgraduate Students: A Phonetical Perspective
Get PDFThis research aims to address two primary problem statements: first, to identify the types of English pronunciation errors made by third-semester students in the postgraduate English language education program; and second, to determine the sources of these pronunciation errors among the same cohort of students. This research used a combination of phonetic and quantitative error analysis to identify the pronunciation errors among postgraduate students. The results showed that there were 16.16% of omission errors, 11.97% addition errors, 71.85% of word formation errors, and students 0% of word ordering error. For the sources of errors in the pronunciation of all students during the proposal seminar, researcher found that there was incomplete application of rule is source from omission errors such as letter /g/, /ʃ/, /dʒ/, /ə/, /ɪ/, /ɑː/, /t/, and /h/. The next source of errors false concepts hypothesized is source from addition errors such as letter /ɒ/, /ʌ/, /s/, /g/, /e/, /ɑː/, /u/, /w/, /a/, /j/, and /r/. There is also overgeneralization is source from misformation errors such as letter /aʊ/, /ɔː/, /h/, /ʒ, etc. Meanwhile for ignorance of rule restriction is source from misodering errors all students for misodering did not make that mistake
The Photovoice Project: Fostering Students' Autonomous, Collaborative, and Authentic Business/Engineering English Learning Experiences
Get PDFThis perspective article elaborates an instructional approach to business English learning utilizing a photovoice project as a strategy to promote a real-world learning encounter. In professional and vocational colleges, project-based learning (PBL) is an instructional strategy for promoting autonomous, collaborative, and authentic learning nuances. This article sheds light on how photovoice project fosters the students’ technical and business English learning experiences. The project empowers students to take charge of their learning, work collaboratively, and engage in real-world business context. This paper presents the concept of photovoice, learners’ autonomy and collaboration towards photovoice, authentic business English learning encounters, technology-integrated photovoice, project evaluation, and case studies on photovoice project. On top of that, language teachers can utilize project-based photovoice as a valuable tool for promoting innovative and engaging business English learning activities, thus providing students with contextual-based learning environment and preparing them for the real business world. It also brings several implications: 1) for vocational English teachers, implementing photovoice projects offers a powerful tool to create innovative and engaging learning activities, 2) for students, these projects provide a contextualized learning environment that prepares them for the real business world by developing practical language skills and industry-specific knowledge, and institutions will benefit by fostering an educational approach that bridges classroom learning with real-world applications, thereby enhancing the overall quality and relevance of their programs.
Development of an Agricultural Department Application to Predict Small Chili Prices
Get PDFSmall chili farmers in Soppeng Regency face challenges in planning production and marketing due to fluctuating prices. To assist various stakeholders, an accurate price prediction system is needed. This research proposes a system solution to predict small chili prices using the Gradient Boosting Algorithm. The Gradient Boosting Algorithm is employed to predict prices based on historical data using tools such as Visual Studio Code, Microsoft Excel, Python, PHP, CSS, and SQL. The dataset used consists of chili price data provided by the Department of Agriculture of Soppeng Regency, covering prices from 2018 to April 2024. The developed prediction system is capable of providing accurate price predictions, aiding farmers, traders, and consumers in production and purchasing planning. This algorithm is highly effective in predicting small chili prices and offers significant benefits to farmers, traders, and consumers in the region. The system was tested using Mean Absolute Error (MAE) and User Acceptance Testing (UAT). The results showed that the prediction error, measured using MAE, was 2730.83. Meanwhile, the User Acceptance Testing yielded a questionnaire score of 86.27%, indicating that the system has excellent performance and is highly suitable for use. It is hoped that this system will provide benefits to the entire community, especially small chili farmers, in production planning
Fostering Intrinsic Motivation: The Role of SDT and Tam Theory In Shaping Behavioral Intentions for Sustainable Recruitment
Get PDFThe study aims at analyzing the direct and indirect effects of intrinsic motivation, perceived ease of use, and behavioral intention on the 270 employees of eco-oriented startups in Bali. This study was conducted based on research gaps, namely: 1) the limitations of research that emphasizes intrinsic motivation in the behavioral intention of using recruitment games; and 2) the lack of studies that enrich the combination of SDT and TAM theory. The data were collected using a questionnaire, and SmartPLS was used to analyze the results. The results showed that: 1) Intrinsic motivation has a significant positive relationship to perceived ease of use; 2) Perceived ease of use has a significant positive relationship to behavioral intention; 3) Perceived ease of use mediates intrinsic motivation and behavioral intention; and 4) Intrinsic motivation has a significant positive relationship to behavioral intention
Pengaruh E-Commerce Shopee dan Kreativitas Mahasiswa terhadap Minat Berwirausaha Online Mahasiswa Jurusan Administrasi Niaga Politeknik Negeri Ujung Pandang
Get PDFThis research is aimed find out students' perceptions of the students' creativity that must be possessed in online entrepreneurship, find out students' perceptions of online entrepreneurial intention, find out the effect of shopee e-commerce toward students' online entrepreneurial intention partially, find out the effect of students’ creativity toward students' online entrepreneurial intention partially, find out the effect of shopee e-commerce and students’ creativity toward students' online entrepreneurial intention simultaneously. The population of this research were students of the Department of Business Administration, the State Polytechnic of Ujung Pandang who had completed entrepreneurship course and used shopee e-commerce with total of 399 students. In this research, the sampling technique used was purposive sampling and the calculation based of the slovin’s formula, which resulted 200 students as sample. This research data was obtained from distributing online questionnaires. The data gathered obtained is then processed and analyzed by using SPSS Statistics version 25 by conducting validity and reliability tests, descriptive statistical analysis, classical assumption tests, multiple linear regression tests, and hypothesis tests. The results of this research showed that: 1) students' perceptions of shopee e-commerce in online entrepreneurship is in the good category; 2) students' perceptions of the students' creativity that must be possessed in online entrepreneurship is in the high category; 3) students' perceptions of online entrepreneurial intention is in the high category; 4) shopee e-commerce partially had an effect on online entrepreneurial intention; 5) student creativity had no effect on online entrepreneurial intention; 6) shopee e-commerce and student creativity simultaneously had an effect on online entrepreneurial intention