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All Journal Jurnal Gizi dan Pangan JURNAL GIZI INDONESIA Journal of Nutrition College Jurnal Kesehatan Masyarakat Otopro Jurnal Kesehatan Masyarakat Andalas (Andalas Journal of Public Health) Jurnal Kesehatan Andalas ROTOR: JURNAL ILMIAH TEKNIK MESIN DINAMIKA Jurnal Ilmiah Teknik Mesin Jurnal Media Gizi Indonesia (MGI) Jurnal Abdimas BSI: Jurnal Pengabdian Kepada Masyarakat Amerta Nutrition JURNAL KESEHATAN PERINTIS Jurnal Hilirisasi IPTEKS (JHI) Jurnal Kesehatan Global Buletin Ilmiah Nagari Membangun International Journal of Agricultural Sciences Jurnal Ekonomi dan Bisnis Dharma Andalas PREPOTIF : Jurnal Kesehatan Masyarakat Jurnal Aisyah : Jurnal Ilmu Kesehatan Indonesian Journal of Health Sciences Research and Development (IJHSRD) Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Jurnal Abdi Masyarakat Indonesia Media Publikasi Promosi Kesehatan Indonesia (MPPKI) International Journal of Health Science & Medical Research Electrician : Jurnal Rekayasa dan Teknologi Elektro Public Health Risk Assesment Journal Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Dharmakayana: Journal of scientists, engineers, educators and scientific activists related to society development Jurnal Keilmuan dan Aplikasi Teknologi Industri
Helmizar
Departemen Gizi Fakultas Kesehatan Masyarakat Universitas Andalas
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Evaluation of the implementation stimulation, detection, and early intervention for toddlers growth and development in Nanggalo Health Center Azrimaidaliza, Azrimaidaliza; Resti, Resti; Helmizar, Helmizar
Jurnal Gizi Indonesia (The Indonesian Journal of Nutrition) Vol 12, No 2 (2024): June
Publisher : Department of Nutrition Science, Faculty of Medicine, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jgi.12.2.88-100

Abstract

Background: The coverage of Stimulation, Detection, and Early Intervention for Toddler Growth and Development (SDIDTK) toddlers at the Nanggalo Health Center has not yet reached the national target. This is influenced by the low participation of mothers of toddlers at Integrated Service Posts (Posyandus). The proportion of toddlers weighed at Posyandus 14.90%.Objective: The purpose of this study was to assess the implementation of the SDIDTK program at the Nanggalo Health Center to achieve the national target (90%).Materials and Methods: This type of qualitative research uses a systems approach. Data was collected through in-depth interviews, observation, and document review. Twelve informants were selected in the working area of the Nanggalo Health Center based on purpose sampling. Data processing involves the triangulation of sources and techniques. Records of in-depth interview results were made in the form of transcripts and analyses and interpreted in the form of research results.Results: Based on the research results obtained, there is a manual for implementing SDIDTK but no SOP has been found. The number of implementing staff is sufficient, but the distribution of the workload is not yet effective and efficient. The funds available for community health center activities are sufficient, but there has been no allocation of special funds to support SDIDTK activities. The facilities and infrastructure supporting the program are inadequate. The implementation of detection and stimulation is still not per the guidelines for all toddlers in the Nanggalo Community Health Center working area. Early intervention has been carried out for toddlers who are detected to be experiencing growth and development disorders. Records are summarized in cohorts and reported every month to the Health Service. Monitoring and evaluation are carried out in stages, but they are still not going well.Conclusion: The implementation of the SDIDTK program at the Nanggalo Health Center is still not good. Obstacles in program implementation come in the form of data problems, a lack of infrastructure, limited staff time, low community participation, and a lack of support from across sectors.
Perbandingan Biaya Produksi Tepung Dadih Susu Kerbau dan Susu Sapi: Implikasinya Terhadap Strategi Penetapan Harga Helmizar, Helmizar; Bahari, Asniati; Syukri, Daimon; Yuniritha, Eva; Usman, Robby; Rusdi, Faza Yazira; Sakinah, Restu; Olivia, Adinda; Humaira, Bunga Permata; Saputri, Hendryanti Gita
Jurnal Ekonomi dan Bisnis Dharma Andalas Vol 27 No 1 (2025): Jurnal Ekonomi dan Bisnis Dharma Andalas
Publisher : Universitas Dharma Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jebd.v27i1.1714

Abstract

Abstract This research examines the comparison of production costs in setting the selling price of buffalo milk curd flour with cow milk curd flour using the full costing method. The problem is that the production cost for buffalo milk dadih flour and cow milk dadih flour products is not yet known. The purpose of this research is to determine the comparative analysis of the production cost of buffalo milk dadih flour and cow milk dadih flour using the full costing method in setting their selling prices. The method used in this research is descriptive quantitative using primary data sources. The research results show that the calculation of production costs using the full costing method for buffalo milk curd flour is higher compared to cow milk curd flour. So, the production of cow's milk dadih flour is more profitable compared to buffalo's milk dadih flour. This research shows that understanding the comparison of production costs can help producers determine more profitable pricing strategies, focusing on the production of cow's milk curd flour, which has lower costs Abstrak Penelitian ini bertujuan untuk mengkaji mengenai perbandingan harga pokok produksi dalam penetapan harga jual tepung dadih susu kerbau dengan tepung dadih susu sapi menggunakan metode full costing. Permasalahannya yaitu belum diketahuinya harga pokok produksi untuk produk tepung dadih susu kerbau dan tepung dadih susu sapi. Tujuan penelitian ini yaitu untuk mengetahui bagaimana analisis perbandingan harga pokok produksi tepung dadih susu kerbau dan tepung dadih susu sapi dengan menggunakan metode full costing dalam penetapan harga jualnya. Metode yang digunakan dalam penelitian ini adalah deskriptif kuantitatif dengan menggunakan sumber data primer. Hasil penelitian menunjukkan bahwa perhitungan harga pokok produksi dengan menggunakan metode full costing antara tepung dadih susu kerbau lebih tinggi dibandingkan dengan tepung dadih susu sapi. Jadi, produksi tepung dadih susu sapi lebih menguntungkan dibandingkan dengan tepung dadih susu kerbau. Penelitian ini menunjukkan bahwa pemahaman mengenai perbandingan harga pokok produksi dapat membantu produsen dalam menentukan strategi harga yang lebih menguntungkan, dengan fokus pada produksi tepung dadih susu sapi yang memiliki biaya lebih rendah.
FLOW CHARACTERISTIC OF HEAD DIFFERENCE PUMP AS ARRANGED IN SERIES AND PARALLEL Helmizar, Helmizar
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 3 No. 1 (2019): April 2019
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v3i1.9933

Abstract

Pump is a device used to move fluid. The pump moved the fluid from a lower pressure place to a place with higher pressure. If the head or pump capacity needed cannot be achieved using only one pump, it can use two pumps or even more which can be arranged either in series or in parallel. The research objective for pumps arranged in series and in parallel is to determine the characteristics of the circuit of two pumps each of which has different characteristics. In this study, data retrieval is done by measuring the pressure on suction and discharge using pressure gauge at pumps 1 and 2. Whereas to measure the flow rate of a pump arranged in series and parallel using a flowmeter installed on the discharge side of the circuit. This research was done by varied the valve openings on the pump discharge side 2 namely 2x1800, 4x1800, 6x1800, 8x1800 and full openings. From the results of tested the characteristics of the pump used water fluid on the series arrangement, the highest head value at valve opening 2 x 1800 is 30.99 m at discharge 0 LPM and the lowest head at valve opening 10 x 1800 (full) is 23.99 m at discharge 0 LPM. In parallel circuits, the highest head obtained is 16.99 m with 0 LPM discharge at 8 x 1800 valve openings and lowest head 14.99 at 0 LPM discharge occurs at full valve openings
PROSES REBENDING MENGGUNAKAN ROLL FORMING PADA PLAT SS 400/ JIS G3101 DI DALAM PEMBUATAN CORRUGATION STEEL PLATE MODEL 47J9-1C Bismantolo, Putra; Helmizar, Helmizar; Wiranto, Imam; Hoten, Hendri Van; Nurbaiti, Nurbaiti
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 4 No. 1 (2020): April 2020
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v4i1.13276

Abstract

Roll Forming Machine adalah produk teknis yang mengintegrasikan teknologi mekanik. Mesin ini menggunakan teknologi canggih dan sangat meningkatkan efisiensi produk. Alat ini dapat secara otomatis melokalisasi, menjepit, menyesuaikan, mengeroll, mengangkut hingga menyelesaikan pekerjaan. Mode otomatis dari jalur ini sangat menghemat biaya pembuatan, dan mesin ini menggunakan metode bending Roll Forming. Metode ini adalah proses bending yang menggunakan Up Roller dan Driven Roller yang berputar menggulirkan plat sehingga terbentuklah profil dan kelengkungan benda kerja. Dari metode Roll Forming akan didapatkan hasil dengan radius yang masih cukup besar. Standar radius pada alat ini yaitu dengan ukuran 9000mm.Jika ingin memperkecil ukuran radius maka diperlukan proses pengulangan bending (Rebending). Dengan proses Rebending maka diperlukan lagi waktu untuk pengecilan ukuran radius yang diinginkan.Cepat lambatnya proses Rebending tergantung dari bebrapa langkah yang akan dilakukan dalam menurunkan radius yang diinginkan.dengan variasi jarak penurunan up roller 3mm dan 4mm tentu akan membuat waktu pengerjaan yang berbeda. Dari variasi jarak penurunan up roll tersebut menghasilkan kurva perbandingan pengerjaan waktu total. Jarak penurunan up roller 3mm meghasilkan waktu 16,01 menit sedangkan jarak penurunan up roller 4mm lebih cepat yaitu 13,59 menit.
PENGOPERASIAN MESIN CMM UNTUK PENGUKURAN KEBULATAN BENDA KERJA BAJA S45-C Helmizar, Helmizar; Ichsan, Muhammad Ibrahim; Alqap, Sofwan
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 4 No. 2 (2020): Oktober 2020
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v4i2.18394

Abstract

Coordinate Measuring Machine (CMM) adalah sebuah alat pengukur multi fungsi dengan kamampuan kecepatan mengukur yang tinggi dan mampu menghasilkan nilai akurasi pengukuran dan efisiensi pengukuran yang tinggi. Pada pengoperasiannya alat ini membutuhkan operator yang memiliki keterampilan khusus dalam menjalankannya.Hal ini dikarenkan dalam pengoperasian Coordinate Measuring Machine (CMM) operator harus membuat program pengukuran terlebih dahulu agar alat dalam digunakan untuk mengukur benda kerja yang diinginkan. Pada pengujiankali ini dilakukan pengoperasian Coordinate Measuring Machine (CMM) serta pembuatan program pengukuran Benda kerja Baja S45-C dengan ukuran diameter dimensi atas 159.76 mm dengan arah ukur CW, dan diameter dimensi bawah 169,76 mm dengan arah ukur CCW, yang mana pada tiap dimensi dilakukan pengukuran berulang sebanyak 5 kali pengukuran dengan tiap sekali pengukuran dilakukan sebanyak 128 titik sampel ukur. Dari hasil pengoperasian yang telah dilakukan didapatkancara mengoperasikan mesin CMM dari awal dihidupkan hinggaselesai pengoperasian. Dan dari hasil pengukuran program yang telah dibuat didapat nilai error benda kerja Baja S45-5 pada diameter atas 159,79 dengan arah probe CW untuk tiap sekali pengukuran dilakukan sebanyak 128 titik ukur sebagai sampel ukur didapatkan nilai error secara berurutan yaitu 0,1933 mm, 0,1936 mm, 0,1933 mm, 0,1940 mm, dan 0,1939 mm. Pada diameter bawah 169,76 dengan arah probe CCW untuk tiap sekali pengukuran dilakukan sebanyak 128 titik ukur sebagai sampel ukur didapatkan nilai error secara berurutan yaitu 0,1606 mm, 0,1608 mm, 0,1606 mm, 0,1612 mm, dan 0,1608 mm.
MAINTENANCE KOMPRESOR SENTRIFUGAL CENTAX CC 700 MX 3HP Nurbaiti, Nurbaiti; Hoten, Hendri Van; Helmizar, Helmizar; Bismantolo, Putra; Sulistrionio, Sulistriono
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 4 No. 2 (2020): Oktober 2020
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v4i2.18400

Abstract

PT. Pertamina (Persero) Refinery Unit III (RU III) is one of the Refinery Unit Pertamina that it main activity is process crude oil and intermediate product (Alkylfeed, HSDC,slop oil, LOMC, Long residue, Raw PP) into finished product. One of the important tools is Centrifugal Compressor (CENTAX CC 700 MX 3HP). The problem in the compressor is temperature of the fluida is increase but it pressure is decrease.To solve this problem, sandblasting and coating is used in inspection stage. The result from the inspection was compressor had a leak because the O ring was not functioning optimally and the surface was eroded To overcome this matter, coating is done to prevent the compressor surface from corrosion and replacing the O ring according to size.
PENGUKURAN KESALAHAN GERAK SUMBU X DAN SUMBU Z BERDASARKAN HASIL CUTTING TEST MESIN BUBUT CNC INOVASI MENGGUNAKAN COORDINATE MEASURING MACHINE (CMM) Helmizar, Helmizar; Agustian, Alvin Bayu; Alqap, A Sofwan F
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 5 No. 1 (2021): April 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v5i1.20150

Abstract

The innovation CNC lathe is one of the machine tools with two axis. The X and Y axis are very influential in producing precision products the axis on the lathe because the axis on the lathe is as a tool for driving the chisel. To determine the precision or not of the motion of the axis, it is necessary to do a cutting test (Cutting Test) then the results of the cutting test are measured for precision using a Coordinate Measuring Machine (CMM). In the cutting test, the ISO 13041-6-M4 Series is used. In this cutting test, a radius of 50 mm is used, the test object can be reused, but the programmed radius should not be more than ± 10% of the nominal radius. The circle deviation tolerance is 0.025 mm. From the measurements made, the largest error value is 1.825056 mm in the first measurement in the CW direction, while the smallest error value is 1.824025 mm in the three-way CCW measurement, the resulting deviation continues to increase along with the cutting direction. The magnitude of the deviation, and the motion between the X-axis and the Z-axis are not collaborating with each other and not constant. This is because from the starting point of the cut on the X axis to the Z axis the deviation is getting bigger. resulting in inaccurate results from the cutting test. From the cutting test and measurements made, it can be concluded that it is necessary to make improvements to the Z axis motion.
Loss of Guide Vane Disposition on Francis Turbine of Unit 6 of the Hydroelectric Power Plant PLTA Ghozali, Syaiful; Alqap, A Sofwan F; Helmizar, Helmizar
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 5 No. 2 (2021): Oktober 2021
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v5i2.20167

Abstract

Hydropower is a power plant (PLTA) that is very environmentally friendly because it is clean and does not pollute the environment compared to other plants. PLTA, one of which is located in Bengkulu Province, is a power plant that utilizes the potential energy of water. Where the source of the water propulsion produced for the process of generating electricity is from the Tes lake which is sourced from the Air Ketahun river and the Air Pauh river, Lebong Bengkulu. Where this PLTA uses a Francis type turbine with a horizontal position. PLTA has 7 turbine units, with units 1 and 2 being old units producing 2 x 600 KW of power, while units 3 – 7 producing 5 x 4400 KW of power, so the total installed power is 23,200 KW. One of the problems that often occurs in PLTA is the occurrence of disposition of the guide vane on the turbine, where this time we will find out the cause of the disposition and how to overcome it so that there is no disposition and find out the loss of disposition of the guide vane on the Francis unit 6 turbine at PLTA. With this research done, the disposition occurs, it is necessary to take corrective action so that the unit will stop operating and can affect the level of profitability of the company. So that the results of the unit's work if it operates 24 hours are approximately 82 million rupiah, repairs are carried out for 16 hours with a loss of approximately 55 million rupiah. The occurrence of disposition is caused by damage to the transrack so that large waste enters the turbine section. In order to prevent disposition, it is necessary to repair or replace the transrack at the inlet.
ANALISA RESPON GETARAN PADA TURBIN FRANCIS DENGAN MENGGUNAKAN SINYAL SUARA M.Hapis Apmarwansahrowi; Dedi Suryadi; Helmizar
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 6 No. 1 (2022): April 2022
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v6i1.25450

Abstract

Damage is very common in the PLTA Hydroelectric francis turbine, usually appearing on parts, clutches, gears, bearings, or other drive components. Proper fault diagnosis can help to reduce or even prevent breakdowns. To identify damage to the turbine can use sound signal analysis. This method analyzes using sound signals. By analogizing vibrations as sound waves produced by mechanical vibrations, it is hoped that the sound signal can be used as a parameter to determine the condition of the turbine. In this study, to get the best signal, a microphone is used as a sensor to capture sound signals which are placed on the guide bearing of the hydropower test turbine. The sound signal in the time domain is then transferred to a signal in the frequency domain using Fast Fourier Transform (FFT). The results of the test showed that there were 2 active frequencies, 1x rpm and 2x rpm at a turbine rotation of 500 rpm for 6 days of testing. These characteristics indicate the identification of the problem of the bent shaft on the turbine.
PENGARUH PEMBEBANAN TERHADAP ARUS EKSITASI PADA GENERATOR Hamdan Rizal Maulana; Agus Suandi; Helmizar
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 6 No. 2 (2022): Oktober 2022
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v6i2.25458

Abstract

The generator in the hydropower system is used to convert mechanical energy originating from the turbine rotation into electrical energy by producing an electromotive force. Excitation is one of the most crucial parts of the Generator system, where excitation plays a role in forming/producing electromagnetic flux, resulting in an induced emf. The amplifying current is used to adjust the magnitude of the output voltage according to the applied load. The tool used to regulate the excitation current is the Automatic Voltage Regulator (AVR). The differential loading on the generator changes every time. Therefore a power plant must be able to generate electricity in accordance with the magnitude of the changing load. In power generation, these loading fluctuations can be overcome by adjusting the water valve opening and the excitation current flowing to the electromagnet coil on the generator rotor with constant rotor rotation by the AVR so that electric power is generated according to the applied load. The purpose of this study is to analyze the effect of the load on the excitation current. The results obtained are the load has an effect on the excitation current.
Co-Authors Afdhal Kuniawan Mainil Afdhal Kurniawan Mainil Agus Nuramal Agus Nuramal Agus Suandi Agustian, Alvin Bayu Ajie Syaputra Alifia Putri Alqap, A. Sofwan F Andani Eka Putra Angky Puspawan Ariyasra, Utami Arza, Putri Aulia Asrawati Asrawati Asrawati Asrawati, Asrawati Asrawati Nurdin Aulia Rahmi Putri Azrimaidaliza Bahari, Asniati Bismantolo, Putra Bobby Indra Utama Chica Nahdatul Huda Daimon Syukri Dedi Suryadi Dhiya Fahdila Rahmah Erlanshari, Aan Eva Yuniritha, Eva Fadri, Rince Alfia Fasli Djalal Fauzan Andreas Faza Yasira Rusdi Febmahanelal, Angel FEPY SUPRIANI Ferdinal Ferry Ferina Yollanda Ferry, Ferdinal Finny Fitry Yani Fitri, Tessa Zulenia Fivi Melva Diana, Fivi Melva Frima Elda Ghina Sukma Fadhilah Ghozali, Syaiful Ginting, Zefanya Karsten Hafifatul A Rahmy Hafifatul Aulia Rahmi Hafifatul Aulia Rahmi Hafifatul Auliya Rahmy Hakim, Abdul Hamid Hamdan Rizal Maulana Hardiansyah Hendi Gunawan Hendri Hestiawan Hendri van Hoten Hibatullah, Fauzi Humaira, Bunga Permata Ichsan, Muhammad Ibrahim Ilfa Khairina Indri Juliyarsi ISMAEL , ALIF RAHMAN PELDIANSYAH Khairul Amri Khairunnisyah, Resi M.Hapis Apmarwansahrowi Maisa, Esthika Ariany Makmun Reza Razali Meicy Astuti Monika Trijuli Astuti Muthamainah Muthamainah Nadia Chalida Nur Nice Rachmawati Nur Indrawati Lipoeto Nur Indrawaty Lipoeto Nurbaiti Nurbaiti Nurbaiti Nurul Iman Supardi Olivia, Adinda Perdana, Shintia Putra, Rama Dani Eka Putri, Yosi Irene Queenta Gociardi Rahmy, Hafifatul Auliya Rani Wahyuni Ranne Balqis Resmiati Resmiati Resti Resti Restu Sakinah Restu Sakinah Restu Sakinah Rusdi, Faza Yasira Rusdi, Faza Yazira Sakinah, Restu Salma Nur Fitri Saputri, Hendryanti Gita Sari Bema Ramdika Sari, Sri Rahma Sary, Rizka Yulia Satria, Miko Serly Suryana Shakila Angelica Putri Sidaria, Sidaria Sri Rahma Sari Sulistrionio, Sulistriono Susmiati Susmiati Syahrial Syahrial Tegar Ryadi Tegar Ryadi Usman, Robby Virtuous Setyaka Wijanarko, Andang Wiranto, Imam Wulan Febriza Wulan Febriza Yahdillah, Honey Yovan Witanto Yovan Witanto Yudi Setiawan YURNILA Yusrawati Yusrawati Zain, Gilang Ramadhan Zifriyanti Minanda Putri