Article Per Year (5 Year)
p-Index From 2021 - 2026
4.322
P-Index
This Author published in this journals
All Journal Jurnal Optimasi Sistem Industri JURNAL PENDIDIKAN TAMBUSAI Journal on Education JOURNAL OF SCIENCE AND SOCIAL RESEARCH Jurnal Ilmiah Profesi Pendidikan Scientific Journal of Mechanical Engineering Kinematika Didaktik : Jurnal Ilmiah PGSD STKIP Subang GANDRUNG: Jurnal Pengabdian Kepada Masyarakat Teknomekanik Journal of Mechanical Engineering Jurnal Vokasi Mekanika Tsaqofah: Jurnal Penelitian Guru Indonesia MASALIQ: Jurnal Pendidikan dan Sains TeknoKreatif: Jurnal Pengabdian kepada Masyarakat Journal of Sciencce Technology and Visual Culture Greensusmater
Fitrah Qalbina
Universitas Negeri Padang
Religion Arts Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Other

Published : 29 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 29 Documents
Search

 1   2   3 
Innovation of a Hot Steam Boiling System to Increase the Productivity of Anchious Fish Processing in the Ombak Badabuih Fishermen Group in Pesisir Selatan Sari, Delima Yanti; Qalbina, Fitrah; Deswina, Melri; Andri, Suci
GANDRUNG: Jurnal Pengabdian Kepada Masyarakat Vol. 7 No. 1 (2026): GANDRUNG: Jurnal Pengabdian Kepada Masyarakat
Publisher : Fakultas Olahraga dan Kesehatan, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/gandrung.v7i1.7466

Abstract

Anchovies are small pelagic fish belonging to the order Malacopterygi and family Clupeidae, with lengths ranging from 40–145 mm. They have thin, easily detached scales, a silvery lateral line located between the pectoral and pelvic fins, and are commonly found in coastal waters. West Sumatra Province consists of both marine and land areas, with several coastal regencies, including Pesisir Selatan Regency, which has a coastline of approximately 201.8 km. In Koto XI Tarusan District, about 80% of the population relies on fishing as their main livelihood. Anchovy fishing is typically conducted at night using floating bagan gear with a 1 mm mesh size. Preservation methods include boiling, salting, drying, smoking, and cooling. A survey of the Ombak Badabuih Fishermen’s Group in Simpang Ampang Pulai, Koto XI Tarusan District, revealed that fishermen face limitations due to inadequate anchovy boiling equipment. The current tools use thin metal plates, wood covers, and clay pans that must be replaced every three months, resulting in high costs and reliance on firewood as fuel. Therefore, this community service program aims to innovate a stainless-steel anchovy boiling system to improve product quality and enhance the fishermen’s economic conditions.
ANALISIS NUMERIK KINERJA TURBIN ANGIN DARRIEUS TIPE H TERHADAP VARIASI JUMLAH BLADE DAN KECEPATAN ANGIN DENGAN PENDEKATAN SIMULASI CFD Diki Afrianto; Andre Kurniawan; Yolli Fernanda; Fitrah Qalbina
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 11 No. 04 (2025): Volume 11 No. 04 Desember 2025 In Press
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v11i04.8776

Abstract

This study aims to analyze the aerodynamic performance of an H-type Darrieus wind turbine by varying the number of blades and wind speeds using the Computational Fluid Dynamics (CFD) method. The turbine geometry was modeled using SolidWorks 2022 and numerically simulated with ANSYS Fluent 2025. The models consist of three-blade and four-blade configurations employing the NACA 0012 airfoil profile, tested under three different freestream wind velocities: 7 m/s, 9 m/s, and 11 m/s. The simulations were conducted within static and rotating domains to examine the fluid flow characteristics around the rotor, including velocity distribution, pressure field, torque, and power efficiency. The results show that increasing wind speed leads to more complex and turbulent flow behavior, characterized by the emergence of vortex shedding behind the blades. The torque coefficient (Ct) and power coefficient (Cp) increased with higher wind speeds in the three-blade configuration, indicating greater energy conversion efficiency compared to the four-blade configuration. Conversely, the four-blade turbine exhibited reduced efficiency at higher wind speeds due to increased drag forces and inter-blade interactions, which caused energy losses. Overall, the findings demonstrate that the three-blade H-type Darrieus turbine provides superior aerodynamic efficiency and rotational stability at medium to high wind speeds, whereas the four-blade configuration performs better at lower wind speeds by generating higher starting torque. These results are expected to serve as a reference for the development of efficient vertical-axis wind turbine designs suitable for wind conditions in Indonesia.
Faktor-Faktor Kesulitan Belajar Pembuatan Pola Praktis Pada Mata Pelajaran Pembuatan Pola Tata Busana di SMKN 1 Ampek Angkek Fitrah Qalbina; Ernawati Ernawati
Jurnal Ilmiah Profesi Pendidikan Vol. 10 No. 1 (2025): Februari
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jipp.v10i1.3196

Abstract

Penelitian ini dilatar belakangi oleh adanya permasalahan kesulitan belajar yang dialami oleh siswa kelas XI Tata Busana tahun ajaran 2023/2024 pada mata pelajaran pembuatan pola. Penelitian ini bertujuan untuk mengetahui (1) faktor-faktor penyebab kesulitan belajar pembuatan pola parktis pada mata pelajaran pembuatan pola di SMKN 1 Ampek Angkek ditinjau dari faktor internal yang meliputi sikap terhadap  belajar, motivasi dan rasa percaya diri (2) faktor-faktor penyebab kesulitan belajar pembuatan pola praktis pada mata pelajaran pembuatan pola di SMKN 1 Ampek Angkek ditinjau dari faktor eksternal yang meliputi  keluarga, sekolah dan masyarakat. Metode yang digunakan dalam penelitian ini adalah penelitian deskriptif kuantitatif. Populasi pada penelitian ini adalah seluruh siswa kelas XI Tata busana SMKN 1 Ampek Angkek tahun ajaran 2023/2024 yang berjumlah 54 siswa. Teknik pengambilan sampel dengan nonprobability sampling (sampel jenuh), sehingga seluruh populasi dijadikan sampel. Teknik pengumpulan data menggunakan angket dengan skala likert yang telah diuji validitas dan realibilitasnya. Selanjutnya teknik analisis data yang digunakan adalah analisis statistik deskriptif menggunakan aplikasi SPSS dan microsoft excel. Hasil penelitian menunjukkan bahwa (1) faktor kesulitan belajar ditinjau dari faktor internal adalah sebagai berikut: indikator sikap terhadap belajar sebesar 43% atau 23 siswa dalam kategori sedang, indikator motivasi sebesar 41% atau 22 siswa dalam kategori sedang dan indikator rasa percaya diri sebesar 54%. Atau 29 siswa dalam kategori sedang (2) faktor kesulitan belajar ditinjau fari faktor eksternal sebagai berikut:  indikator keluarga sebesar 37% atau 20 siswa dalam kategori tinggi, infikator sekolah sebesar 39% atau 21 siswa dalam kategori sedang dan indikator masyarakat sebesar 41%  atau 22 siswa dalam kategori rendah.
Analisis Soft Skill dan Kesiapan Memasuki Dunia Kerja Siswa Bidang Teknologi dan Kejuruan SMKS Semen Padang Refi Habibullah Karim; Rizky Ema Wulansari; Mulianti Mulianti; Fitrah Qalbina
TSAQOFAH Vol 6 No 3 (2026): MEI
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/tsaqofah.v6i3.10217

Abstract

Work readiness among technology and vocational students is determined not only by mastery of technical competencies but also by soft skills that support adaptation, collaboration, and professionalism in the workplace. This study aims to analyze the level of soft skills, work readiness, and the relationship between the two among technology and vocational students at SMKS Semen Padang. This study used a descriptive quantitative approach with a correlational design. The research population consisted of students in Grades XI and XII, with a sample of 59 respondents selected using proportional random sampling. Data were collected using a Likert-scale questionnaire that had been declared valid and reliable. Data analysis techniques included descriptive statistics, normality testing, linearity testing, and Pearson correlation analysis. The results show that students’ soft skills were in the very good category, with an average percentage of 81.94%. The most dominant aspect was creativity and problem solving, followed by teamwork, time management, leadership, work ethics, and communication. Students’ work readiness was in the very ready category, with a percentage of 85.63%. In addition, there was a very strong positive and significant relationship between soft skills and work readiness, with a Pearson correlation coefficient of 0.988 (p < 0.05). The conclusion of this study emphasizes that soft skills are strongly associated with vocational high school students’ readiness to enter the workforce. These findings imply the importance of strengthening learning based on soft skill development in vocational education so that graduates are better prepared to meet the demands of the workforce.
Effect of Airfoil Profile Variations on the Rear Wing of a Racing Car on the Downforce Coefficient Using Computational Fluid Dynamics (CFD) Simulation Carlen Muhammad Hendra; Delima Yanti Sari; Arwizet K; Fitrah Qalbina
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 3 (2025): Jurnal Vokasi Mekanika
Publisher : Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i3.881

Abstract

Variation of airfoil profile shape in race car rear wings plays a crucial role in generating optimal downforce to improve traction and vehicle stability. The main issue addressed in this study is the lack of clarity regarding which airfoil profile and angle of attack configuration are most effective in producing the highest downforce coefficient (Cdown). This research aims to analyze the aerodynamic performance of symmetric airfoils NACA 0012 and NACA 0015 at three different angles of attack, namely 9.5°, 19.5°, and 29.5°, using Computational Fluid Dynamics (CFD) simulation. The simulations were performed under steady-state flow conditions with an appropriate turbulence model to accurately capture pressure distribution and airflow characteristics. Results show that NACA 0012 generated higher and more stable Cdown values at low to medium angles, with the highest value of 1.4 at 29.5°. In contrast, NACA 0015 exhibited a more gradual performance increase and reached a Cdown of 1.2 only at the highest angle. The study concludes that slender airfoil profiles like NACA 0012 are more suitable for circuits with sharp corners, while NACA 0015 is better suited for straight tracks requiring progressive aerodynamic stability. This research contributes to optimizing rear wing design based on the aerodynamic demands of race cars.
Analysis of the Effect of Bottom Blade Inclination Angle Variations on Torque in Vortex Turbines Using Computational Fluid Dynamics (CFD) Badri Kurniawan; Randi Purnama Putra; Yolli Fernanda; Fitrah Qalbina
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 3 (2025): Jurnal Vokasi Mekanika
Publisher : Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i3.887

Abstract

The development of renewable energy in Indonesia is a strategic effort to meet increasing energy demands while reducing dependence on fossil fuels. One promising approach is utilizing river flow for micro-hydro power generation, particularly with vortex turbines that operate efficiently under low head and discharge conditions. This study aims to analyze the effect of varying bottom blade inclination angles on the torque generated by a vortex turbine using Computational Fluid Dynamics (CFD) simulations. The research employed ANSYS Fluent with a k-? SST turbulence model and used a three-dimensional numerical method to evaluate three inclination angles: 22.5°, 32°, and 42°. The results show that blade inclination significantly influences torque values, with the 22.5° angle producing the highest torque of 10.95 Nm, followed by 32° at 10.79 Nm, and 42° at 10.58 Nm. These findings indicate that optimizing blade inclination improves turbine performance, contributing to the development of efficient micro-hydro systems for renewable energy applications.
Analysis Of The Effect Of Penstock Diameter Variation And Nozzle Flow Velocity On Pelton Turbine Performance Using Computational Fluid Dynamics (CFD) Revaldo Nur Hidayat; Randi Purnama Putra; Yolli Fernanda; Fitrah Qalbina
Jurnal Vokasi Mekanika (VoMek) Vol 8 No 2 (2026): Jurnal Vokasi Mekanika
Publisher : Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/18k9e415

Abstract

The performance of a Pelton turbine in micro-hydropower plants is influenced by penstock design and fluid flow conditions. Variations in penstock diameter can lead to changes in head loss, flow velocity, and energy transfer efficiency. This study aims to analyze the effect of penstock diameter variation and nozzle flow velocity on Pelton turbine performance under different head conditions using the Computational Fluid Dynamics (CFD) method.Simulations were conducted using penstock diameters of 4 inches, 5 inches, and 6 inches with ANSYS software. The results show that the respective head losses are 0.010 m, 0.006 m, and 0.0028 m, indicating that larger diameters reduce friction losses in the flow. The corresponding nozzle velocities are 8.90 m/s, 9.08 m/s, and 8.64 m/s, with the highest value observed at the 5-inch diameter due to the balance between flow rate and energy losses. The resulting torque values are 2.13 Nm, 2.55 Nm, and 2.60 Nm, while the rotor rotational speeds are 150.87 W, 189.07 W, and 194.90 W. The effective power generated is 65.59 W, 80.21 W, and 77.79 W, with efficiencies of 43.77%, 42.44%, and 39.95%, respectively. The results indicate that a 5-inch penstock diameter provides the most optimal performance, as it achieves the best balance between head loss, flow distribution, and fluid energy transfer.
Key Determinants of SMEs Sustainable Performance in West Sumatra: A PLS-SEM Analysis Hary Fandeli; Micko Tomas; Fitrah Qalbina; Nasywa Firdaus Har
Jurnal Optimasi Sistem Industri Vol. 25 No. 1 (2026): Published in June 2026
Publisher : The Industrial Engineering Department of Engineering Faculty at Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/josi.v25.n1.p174-190.2026

Abstract

Rising environmental pressures from population growth and industrial expansion in Indonesia necessitate sustainable business practices. Yet, adoption among Small and Medium-sized Enterprises (SMEs) remains obstructed by low energy efficiency, inadequate waste management, limited technological and financial access, and managerial shortcomings. Using‍‌‍‍‌‍‌‍‍‌ two theories, resource based view (RBV) and institutional theory (IT), this study has mapped the relationships between internal and external factors and the triple-bottom-line performance of SMEs. This study investigates and tests these relationships amongst the factors that influence environmental, social, and economic sustainability performance by Partial Least Squares Structural Equation Modeling (PLS-SEM). This study designs the approach as a cross-sectional survey, gathering primary data from 110 SMEs to assess the proposed relationships among internal, external, and sustainability performance. Internal factors consist of green entrepreneurial orientation (GEO), green innovation (GI), and leadership commitment (LC), while market orientation (MO) and stakeholder pressure (SP) represent the external factors. Findings indicate that market orientation (MO) has a positive and significant effect across the entire triple-bottom-line (financial, social, environmental), whereas stakeholders pressure (SP) exerts a significant positive effect only on the financial and social dimensions. On the other hand, the internal factor comprising green entrepreneurial orientation (GEO), green innovation (GI), and leadership commitment (LC) does not significantly impact sustainability performance. These results indicate that among the external drivers examined, market orientation is the most comprehensive predictor of sustainability performance, whereas stakeholder pressure has a significant effect only on the financial and social dimensions. Practically, Indonesian SMEs are advised to constantly interpret and react to market signals and stakeholder expectations, whereas, policymakers are recommended to pair the tool of stakeholder pressure with capability-enhancement programs in terms of the operational system.
The influence of processing temperature on the mechanical properties of recycled PET fibers Anna Niska Fauza; Fitrah Qalbina; Hendri Nurdin; Ambiyar Ambiyar; Refdinal Refdinal
Teknomekanik Vol. 6 No. 1 (2023): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/teknomekanik.v6i1.21472

Abstract

Study towards the recycling of PET waste has arisen in the last decades. One of the most widely used methods was the mechanical recycling process due to its simplicity and low cost of production. In this research, PET waste obtained from the disposable water gallon containers was used to produce recycled PET fibers for textile applications. The PET fibers were prepared using the extrusion technique by varying the processing temperatures, i.e., 200, 210, 220, 230, and 240°C. The diameter, FTIR analysis, XRD analysis, and mechanical properties of the PET fibers at various processing temperatures were studied. The results showed that the optimum processing temperature for preparing recycled PET fibers was 210°C with a diameter of 0.23 mm, a degree of crystallinity of 8.9%, a tensile strength of 70.4 MPa, and an elongation at break of 83.6%. In conclusion, PET waste shows a promising application to be processed as recycled PET fibers for textile applications.
Co-Authors Alhakim, Rezki Ambiyar, Ambiyar Ananda, Yoga Rizki Andre Kurniawan Andre Kurniawan Andri, Suci Arirohman, Ilham Dwi Arwizet Arwizet, Arwizet Asadellah, Dimas Pandhu Aulia, Muhammad Aulia Badri Kurniawan Budi Syahri Carlen Muhammad Hendra Deendarlianto Delima Yanti Sari Deswina, Melri Diki Afrianto Dinul, Fadhilah Ikhsan Dori Yuvenda Ernawati Ernawati Ernawati Ernawati Faisal , Amir Fajar Paundra Fauza, Anna Niska Febri Prasetya Guguk, Kardo Raja Hamonangan M , Felix R.M. Hamonangan M Harmiansyah Hary Fandeli Indarto Indarto Irzal, Irzal Kelvin Permana Saputra, Dwi Lathifa Putri Afisna MICKO TOMAS Muhammad Aulia Muhammad Syaukani Mulianti Nasywa Firdaus Har Nurdin Hendri Paundra, Fajar Purnama Putra, Randi Purwantono, Purwantono Putra, Randi Purnama Putty Yunesti Ramadan, Ryan Ramadhan, Raihan Randi Purnama Putra Refdinal, Refdinal Refdinal, Refdinal Refi Habibullah Karim Revaldo Nur Hidayat Rita Kurnia Rizky Ema Wulansari Rustam Efendi Sabar Sabar Santoso, Bagas Saputro , • Adhitya Gandaryus Sugatra Dwi Atmaja Surya, Fajar Teguh Wibowo Wahyudi Wahyudi Wulansari, Rizky Ema Yolli Fernanda Yudistira , Hadi Teguh Yudistira Zikri, Khairul Zulkifli N