Jurnal Online Universitas Teuku Umar
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Performa Thin-Thick Orifice Plate Terhadap Kerugian Energi
Get PDFThe measurement of the volumetric flow rate of fluids in a pipe is essential in process industries, particularly those utilizing pipelines as fluid transport media. Such process variable measurement is conducted to control the system according to a setpoint to achieve process optimization. An orifice plate meter is a type of flow meter used to measure the volumetric flow rate of fluids flowing inside a pipe based on the principle of differential pressure. The performance of an orifice plate meter can be determined by measuring the pressure at the upstream and downstream regions using pressure tappings connected to a manometer tube. The experimental observation of orifice performance was carried out by testing the orifice plate meter at ratios of (s/d) = 0.42, 0.83, and 1.25 with a restriction ratio (β) = 0.5. Pressure measurements at upstream and downstream regions were performed within the Reynolds number range of 6600–16500.The pressure distribution, discharge coefficient (Cd), and permanent pressure loss were considered as the main parameters in classifying the accuracy level of the orifice plate meter as a volumetric flow measurement device. The percentage of permanent pressure loss, referenced to centerline pressure at (s/d) = 0.42, 0.83, and 1.25, was found to be 49.87%, 54.37%, and 67.27%, respectively. The average discharge coefficient (Cd) at (s/d) = 0.83, with references to centerline pressure and D;0.5D, was 0.66 and 0.76, respectively, while for (s/d) = 1.25 the values were 0.65 and 0.68. Meanwhile, for (s/d) = 0.42, the average Cd obtained was 0.73, which is close to the analytical value given in ISO 5167-2 (2013)
Rancang Bangun Biodigester Limbah Peternakan Sapi untuk Produksi Biogas di Universitas Teuku Umar
Get PDFPertumbuhan populasi global mendorong peningkatan kebutuhan energi yang menjadi tantangan serius bagi pembangunan berkelanjutan. Indonesia, sebagai konsumen energi primer terbesar kelima di Asia Pasifik, menghadapi tekanan terhadap ketahanan energi, khususnya di sektor rumah tangga. Di tengah dominasi energi konvensional, Indonesia memiliki potensi besar dalam energi terbarukan, salah satunya biomassa dari limbah peternakan sapi. Limbah ini mengandung bahan organik tinggi yang dapat dikonversi menjadi biogas melalui teknologi biodigester, sekaligus mengurangi pencemaran lingkungan dan mendukung kemandirian energi masyarakat. Penelitian ini bertujuan untuk merancang dan membangun biodigester skala kecil yang sesuai dengan kondisi lokal di Universitas Teuku Umar (UTU), Aceh. Biodigester dirancang sebagai reaktor anaerob tertutup yang mengubah limbah kotoran sapi menjadi biogas dan pupuk organik. Melalui pendekatan berbasis komunitas, teknologi ini diharapkan dapat mendukung pengelolaan limbah yang ramah lingkungan dan meningkatkan kemandirian energi masyarakat. Selain itu, proyek ini menjadi sarana pembelajaran aplikatif bagi mahasiswa UTU dalam bidang teknik mesin, lingkungan, dan energi terbarukan. Hasil penelitian menunjukkan bahwa biodigester berpotensi menjadi solusi strategis dalam pengelolaan limbah dan penyediaan energi alternatif yang berkelanjutan
Peran Sistem Informasi Akuntansi Pada Aplikasi Livin By Mandiri Terhadap Kepuasan Pengguna di Kota Dumai
No full textABSTRACTThe study investigates the role of accounting information systems (AIS) in managing the Livin' by Mandiri application and its impact on user satisfaction. The author used a descriptive qualitative method by interviewing four application users aged 20-40 years. The results showed that the services presented by Livin' by Mandiri are in accordance with customer needs and the quality of information provided is quite precise and accurate. This makes users feel satisfied with the information presented. Accounting information systems are used to process financial reports in a systematic and structured manner. This research shows that Livin' by Mandiri can make good use of AIS to increase user satisfaction through the quality of information and services presented.)Keywords: AIS; Livin' by Mandiri; Information Quality; User Satisfactio
The effect of the color of the rearing container on the growth and survival of tambaqui (Colossoma macropomum)
Get PDFTambaqui (Colossoma macropomum) is a commodity with high economic value because it is a consumption fish. The purpose of this study was to analyze the effect of different colors of rearing containers on the growth and survival of freshwater pomfret fry. The method used in this study was an experimental method with 4 treatments repeated 3 times. In each treatment, a different color was given: P1 = transparent (control), P2 = black, P3 = blue, P4 = green. The results of these treatments significantly affected absolute weight growth, absolute length growth, and daily growth rate. Meanwhile, the survival rate and feed conversion ratio did not have a significant difference. The highest absolute weight growth was found in P3 at 13,67g, while the lowest absolute weight growth was found in P1 at 8,75g. The highest absolute length growth was found in P3 at 3,49cm, while the lowest absolute length growth was found in P1 at 2,39cm. Meanwhile, the highest daily growth rate was found in P3 at 34,18g, while the lowest daily growth rate was found in P1 at 21,88g. From the results of providing different container colors in the maintenance container, the brighter the color used, the better the resulting growth is categorize
ANALISIS PENYERAPAN TENAGA KERJA PADA SEKTOR EKSPEDISI DI KABUPATEN ACEH BARAT
Get PDFThis study aims to analyze the influence of capital, wage levels, and technology on labor absorption in the expedition sector in West Aceh Regency. The expedition sector plays an important role in providing employment, especially in facing the challenges of increasing unemployment due to population growth. With the development of shipping activities, the need for labor also changes, depending on the adequacy of capital, the amount of wages, and the use of technology. This study uses a quantitative approach with a causal associative method. The research sample covers the entire population, namely 26 expedition company units in West Aceh Regency which were taken using the total sampling technique. Primary data were obtained by distributing questionnaires to respondents in each company. The data analysis technique used is multiple linear regression, with classical assumption tests such as normality, multicollinearity, heteroscedasticity, and autocorrelation tests to ensure the validity of the model. The results of the study indicate that partially, the capital and technology variables have a positive and significant effect on labor absorption, while the wage level does not have a significant effect. However, simultaneously, the three variables capital, wages, and technology have a positive and significant effect on labor absorption in the expedition sector of West Aceh Regency. These findings suggest that increasing capital and adopting appropriate technology can expand employment opportunities, while wage policies need to be considered with a more comprehensive approach to encourage employment absorption.
Gender and Lexical Variation in Pitch, Duration, and Intensity: A Phonetic Study of Indonesian-Origin Words
Get PDFThis study investigates how gender influences suprasegmental features—specifically pitch, duration, and intensity—in the pronunciation of Indonesian-origin words. The research addresses the problem of limited phonetic studies examining gender-based acoustic variation in Indonesian, particularly in devoiced stop consonants. The objective is to analyze whether and how gender differences manifest in these prosodic elements. Using a descriptive qualitative method, data were collected from ten participants—five males and five females—from diverse ethnic backgrounds (Bataknese, Javanese, Karonese, and Melayunese), all residing in Medan, North Sumatra. Nine commonly used Indonesian-origin words were selected, and acoustic features were analyzed using PRAAT software. The results show that female speakers consistently produced higher pitch values across all words, with peaks reaching up to 499 Hz, while male speakers demonstrated lower and narrower pitch ranges, as low as 94 Hz. Duration values also varied more among female speakers, ranging from 0.097 ms to 0.469 ms, indicating more dynamic articulation patterns, although some male speakers also showed extended durations in specific contexts. Intensity levels ranged from 23 dB to 54 dB, with female speakers exhibiting greater variability in loudness—from soft to very loud—whereas male speakers maintained a more stable and moderate intensity. These findings suggest that pitch differences are primarily influenced by physiological factors such as vocal fold structure, while duration and intensity are more reflective of individual articulation style, emotional expressiveness, and speech clarity. Despite limitations in audio editing features in PRAAT, the study provides new insights into how gender and speaker identity shape suprasegmental variation in Indonesian phonetics
Exploring the Implementation of Wordwall in English Learning for PKPBI Students in UIN Malang
Get PDFThis study investigates the implementation of Wordwall as a multimodal digital learning tool to enhance English vocabulary acquisition among third-semester PKPBI students from Tadris Mathematics and Qur’anic Interpretation majors at UIN Malang. Employing a descriptive qualitative design, data were collected through classroom observations, student interviews, documentation of student tasks, and pre- and post-tests. The findings reveal that Wordwall significantly improved students' vocabulary mastery, as demonstrated by the notable increase in post-test scores across both classes. Three main strategies, Meaning-Matching Strategy (MMS), Contextual Understanding (CU), and Pronunciation and Spelling Accuracy (PSA), were effectively applied through various Wordwall features such as Matching Game, Type the Answer, Wordsearch, and Open the Box. Students reported positive perceptions regarding Wordwall’s effectiveness, motivational appeal, engagement, learning experience, and visual design. The game-based format created an enjoyable and interactive learning environment that supported retention and contextual vocabulary use. However, a few students expressed challenges related to visual complexity and internet dependency, reflecting the need to align digital tools with students’ cognitive load and accessibility. This research contributes uniquely by integrating real-time classroom observations with student reflections from two distinct academic backgrounds and emphasizing Wordwall's role in personalized, multimodal vocabulary learning. The study highlights that while Wordwall is effective, its design and implementation must be adaptable to diverse learner profiles and technological readiness.Keywordsvocabulary acquisition, multimodal learning, Wordwall, student perception, digital learning tools
KONSTRUKSI KETIDAKSETARAAN GENDER PADA REMAJA PEREMPUAN DI SMA NEGERI I KAWAY XVI (Studi Pasca Menonton Film Kartini 2017)
Get PDFThis study aims to analyze how adolescent girls form an understanding of gender inequality after watching the film Kartini (2017). This film is positioned as an educational medium that can trigger critical reflection on the social constructs that limit the role of women. The research uses a descriptive qualitative approach with the social construction theories of Peter L. Berger and Thomas Luckmann, which includes three main stages: externalization, objectification, and internalization.The subjects of the study were students in class XII of Social Studies 1 and Social Studies 2 of SMA Negeri 1 Kaway XVI, who were selected purposively. Data collection techniques are carried out through observation, in-depth interviews, and documentation. The results of the study show that Kartini's film is able to increase gender awareness in adolescent girls. At the externalization stage, female students began to voice their views on the gender role inequality that they experience on a daily basis. The objectification stage showed that their thinking was tested in social interactions, where some received support and some faced resistance from patriarchal culture. Meanwhile, at the internalization stage, social support has proven to be very influential on whether the values of equality can be truly accepted and appreciated.
Sistem Pakar Diagnosa Penyakit Demam Berdarah Pada Manusia Menggunkan Metode Fuzzy Stukamoto
Get PDFPerkembangan teknologi informasi telah memungkinkan penerapannya dalam berrbagai bidang termasuk kesehatan.Penelitian ini bertujuan untuk merancanag dan membangun sistem pakar untuk mendiagnosa Demam Berdarah Dengue (DBD) pada manusia menggunakan metode fuzzy tsukamoto.Sistem ini dikembangkan dalam bentuk aplikasi web menggunkan apache NetBeans, sehingga memungkinkan pengguna untuk mengaksesnya secara langsung melalui browser tanpa perlu mengunduh dan menginstal aplikasi tambahan. Penggunaan ini memudahkan proses integrasi dan pengujian sistem, serta memberikan fleksibilitas dalam pengembangan lebih lanjut. Dalam penelitian ini, diterapkan metode fuzzy tsukamoto untuk menangani ketidakpastian dalam proses diagnosa penyakit DBD. Metode ini bekerja dengan memberikan nilai probabilitas terhadap kemungkinan penyakit berdasarkan input gejala yang dimasukkan oleh pengguna, sehingga menghasilkan keputusan yang lebih akurat dan terstuktur.Hasil Pengujian menunjukkkan bahwa sistem ini mampu memberikan diagnosa yang akurat dan sesuai dengan perhitungan manual yang dilakukan oleh dokter. Pengujian blackbox memastikan bahwa semua fungsi dalam sistem berfungsi dengan baik, sedangkan hasil pengujian Mean Opinion Score (MOS) menunjukkan tingkat kepuasan pengguna yang tinggi terhadap kinerja dan kemudahan penggunaan sistem.Sistem pakar ini dapat membantu mengurangi beban kerja dokter dalam mendiagnosa DBD dengan menyediakan alat bantu diagnosa yang cepat dan akurat, serta memberikn kenyamanan bagi pasien dalam mendapatkan informasi awal tentang kondisi kesehatan mereka terkait DBD
Business Process Maturity Model pada Penerapan Sistem Pemenuhan Layanan Teknologi Informasi dan Komunikasi
Get PDFDalam menghadapi peningkatan permintaan layanan Teknologi Informasi dan Komunikasi (TIK) yang dinamis, organisasi perlu merespon dengan meningkatkan kecepatan dan kualitas sistem pemenuhan layanan TIK. Permasalahan yang terjadi di dalam penerapan sistem pemenuhan layanan TIK adalah kurangnya proses penilaian tingkat kematangan dan evaluasi yang dilakukan oleh suatu organisasi. Penelitian ini bertujuan untuk melakukan evaluasi penerapan sistem pemenuhan layanan TIK melalui penilaian tingkat kematangan menggunakan pendekatan Business Process Management (BPM). BPM menjadi pendekatan strategis untuk mengoptimalkan kinerja sistem pemenuhan layanan TIK melalui integrasi dengan pengelolaan proses bisnis. Metode yang digunakan adalah penilaian menggunakan Business Process Maturity Model (BPMM), dengan mengukur tingkat kematangan pada 7 faktor pada organisasi yakni strategic alignment, governance, methods, information technology, people, dan culture. Penelitian ini memiliki keterbaruan dalam hal penilaian tingkat kematangan penerapan sistem pemenuhan layanan TIK dengan pendekatan BPM yang hingga saat ini masih jarang dibahas pada penelitian dengan topik yang terkait, khususnya di Indonesia. Pada penelitian selanjutnya, dapat dilakukan kajian untuk mempertajam dalam hal pembuatan strategi, untuk mengingkatkan kualitas dari sistem pemenuhan layanan TIK