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All Journal Jurnal Teknik Mesin ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal Bisnis, Manajemen, dan Informatika Turbo : Jurnal Program Studi Teknik Mesin JURNAL PENGABDI Electrician : Jurnal Rekayasa dan Teknologi Elektro Prosiding Seminar Nasional Unimus Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Dharmakayana: Journal of scientists, engineers, educators and scientific activists related to society development
Alqap, A. Sofwan F
Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences

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Teknik Pengelolaan Stress Model Inkubasi Kelompok Budidaya Ikan Program Antisipasi Pandemi Berkelanjutan Alqap, Sofwan
Jurnal Pengabdi Vol 4, No 2 (2021): Oktober 2021
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jplp2km.v4i2.46261

Abstract

The Covid-19 pandemic forced everyone laid off. When the situation recover, do not know. Will he/she return to similar work, do not sure. Continuing stress threats to many people. They need helps, to manage the emotional related impact, to build what new about sense, who he/she might be, to carry on a recent part. Psychological advices was given to develop a sustaining model for managing stress, enjoying, making hope, maintaining social contact, sharing each other, and being an incubator in effect to emerge a prosperous activity next. Social media have been a means to keep them in contact indicating the way was running well as the stress management model for low level of open workers who have lost their jobs, and generating new hope and interest from their online communication.
ANALISIS TINGKAT KEPUASAN MAHASISWA TERHADAP PELAYANAN AKADEMIK DI FAKULTAS TEKNIK UNIVERSITAS BENGKULU Mochammad Yusa; Asep Sofwan F. Alqap; Helmizar; Nurul Hidayati
JBMI (Jurnal Bisnis, Manajemen, dan Informatika) Vol. 18 No. 2 (2021): JBMI
Publisher : Department of Management FEB Unhas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26487/jbmi.v18i2.14104

Abstract

Pelayanan yang prima merupakan aspek penting penentu keberhasilan komersial, terutama pada organisasi yang bergerak dalam bidang jasa. Pelayanan yang prima menjadi ujung tombak dalam menangkap peluang dan memahami konsumen atau klien yang akan menggunakan jasa yang ditawarkan. Untuk menghasilkan lulusan yang berkualitas salah satu faktor yang mempengaruhi adalah pelayanan yang diterapkan dalam lingkungan fakultas dalam melayani pelanggan dimana dalam hal ini pelanggan tersebut adalah mahasiswa. Kepuasan terhadap layanan akademik merupakan hal yang perlu diperhatikan demi mencapai layanan yang berkulaitas yang menjamin kepuasan mahasiswa sebagai stakeholder utama dalam organisasi jasa pendidikan. Penelitian ini bertujuan untuk untuk (1) mengetahui tingkat kepuasan mahasiswa terhadap kualitas layanan akademik Fakultas Teknik Universitas Bengkulu dan (2) kualitas layanan akademik Fakultas Teknik Universitas Bengkulu. Jenis penelitian ini adalah penelitian kuantitatif dengan pendekatan survey analitik, yang menggambarkan keadaan melalui analisa data primer dan data sekunder, dan data yang telah terkumpul dalam bentuk angka-angka kemudian akan dihitung menggunakan aplikasi Statistical Product and Service Solution (SPSS), dan hasil dari analisa data, kemudian diuraikan secara diskripsi untuk mengetahui sejauh mana tingkat kepuasan mahasiswa terhadap kinerja pelayanan akademik di lingkungan FT UNIB.
Optimalisasi Operasi Mesin Cetak Pelet MKS-PLT15 Menggunakan Lagrange Yanolanda Suzantry Handayani; Junas Haidi; Adhadhi Kurniawan; Sofwan Alqap
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 16 No. 1 (2022)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Bengkulu Province from Kaur Regency to Moko-Moko Regency is directly adjacent to the Indian Ocean. So that many Bengkulu residents are fishermen and farmers. Of course, with abundant natural resources, there are some fish and agricultural products that have not been utilized optimally, for example, young fish on Bai Island which are still widely discarded and milled rice bran which is very cheap. On the other hand, there is a very big problem experienced by farmers or breeders in Bengkulu Province, namely the price of fish and poultry feed is very high, thus making fish and poultry farmers unable to survive because of the high cost of feed. To reduce the production cost of making pellets, a research was carried out on optimizing the operation of the pellet molding machine Type MKS-PLT 15 with dimensions of 340 x 150 x 325 mm, the power used was 450 watts and the voltage used was 220 v / 50 Hz. The research carried out looked at the machine operation at 25 percents, 50 percents, 75 percents and 100 percents, from the results of the research that had been carried out, it was found that the 25 percents machine operation cost of 6mm pellet printing was 0.00762 kwh/kg or Rp. 11.021/kg, machine operation 50 percents production cost 0.009901kwh/kg or Rp. 14.3039/kg machine operation 75 percents pellet production cost 0.01235kwh/kg or Rp. 17.842/kg while the machine operation is 100 percents pellet production cost of 0.01084 kwh/kg or Rp. 15.6605/kg. so that from the research carried out, it was found that the operation of the MKS-PLT15 pellet machine, the low production cost, was in machine operation 0-50 percents of the capacity of the pellet machine's ability to operate.
Edukasi Pemakaian Masker dan Face shield dalam Mencegah Penyebaran Covid-19 Kepada Pedagang Pasar Panorama Kota Bengkulu Hendri Hestiawan; Agus Nuramal; A. Sofwan F. Alqap; Yossie Anggraeny M
Prosiding Seminar Nasional Unimus Vol 3 (2020): Optimalisasi Hasil Penelitian dan Pengabdian Masyarakat Menuju Kemandirian di Tengah P
Publisher : Universitas Muhammadiyah Semarang

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Abstract

Covid-19 has infected millions of people around the world, including Indonesia. Market traders who interact with many people are very vulnerable to Covid-19 transmission. This activity aims to provide education and assistance to the traders at Panorama Market of Bengkulu City to comply with the health protocols set by the government, such aswearing masks and face shields, especially for outdoor activities. This activity was also followed by the distribution of masks and face shields to traders at Panorama Market so that they could be used in their daily trading activities. The educational method used participatory action research using lectures, discussions, questions and answers, demonstrations, posters and banners. This educational activity is a collaboration between the Engineering Faculty of Universitas Bengkulu, Community Health Center Jembatan Kecil and Sahabat Psikologi of Bengkulu City. Educational materials include the introduction of Covid-19 and health protocols in the form of wearing masks and face shields. The evaluation of the activity used a questionnaire sheet to find out the participants knowledge before and after being given education. The results of the activity showed that the education provided by the facilitator canincrease the knowledge of market traders about Covid-19 and health protocols in the form of wearing masks and face shields in an effort to prevent the spread of Covid-19. Participants knowledge of Covid-19 increased from 50% to 85%, while the importance of wearing masks and face shields increased from 60% to 90% after being given education.Keywords: Covid-19, Face shield, Health protocol, Market trader, Mask
Kaji sifat fisik biokomposit polylactic acid berpenguat serbuk cangkang kerang lokan Alqap, A. Sofwan F; Hestiawan, Hendri; Suandi, Agus; Zuliantoni, Zuliantoni; Farid, Muhammad
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 2 (2023): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i2.2857

Abstract

This research aimed to investigate the effect of adding lokan clam shell powder on the physical properties of polylactic acid (PLA) biocomposites. The research materials consisted of lokan clam shells obtained from the fish auction place in Pulau Baai of Bengkulu City, PLA in filament form, and chloroform. Lokan clam shells were washed with clean water, dried for 12 hours and heated at 900oC for 6 hours. The powder obtained was filtered using a 100 mesh sieve. The PLA dissolution process used chloroform for 2 hours in a closed process with a ratio of 1 g PLA to 5 ml chloroform. After that, added lokan clam shell powder and stirred for 15 minutes using a hotplate at room temperature. The biocomposite manufacturing process used a molding technique with variations in the volume fraction of lokan clam shell powder of 10%, 30% and 50%. The physical properties test includes the density test using the ASTM standard of D1622 and the water absorption test using the ASTM standard of D 570. The results of the physical properties research show that the addition of 10% lokan shell powder to the PLA biocomposite is able to reduce the density and increase the maximum water absorption by 0 .89 g/cm3 and 5.91% respectively.
Teknik Sortir Produk Pangan menggunakan Teknik Bio-impedansi ALQAP, A SOFWAN F; HAIDI, JUNAS; KURNIAWAN, ADHADI; VERONICA, SHINTIA; SUPARDI, NURULIMAN
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 9, No 3: Published July 2021
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v9i3.518

Abstract

ABSTRAKKarakterisasi untuk memisahkan mutu-mutu yang berbeda dalam aplikasi industri dapat dipenuhi dengan menggunakan alat dengan kemampuan yang terbatas. Teknik sortir memanfaatkan sistem papan evaluasi Eval AD5933 EBZ berakurasi 0,5% dilakukan terhadap pisang kepok (musa spp) hasil perkebunan di Pulau Enggano, Provinsi Bengkulu. Sistem dinyalakan dengan sambungan listrik bertegangan 2,7 V – 5,5 V mengeksitasi gelombang dari frekuensi 4000 Hz sampai 100.000 Hz kepada tiga sampel, masing-masing tiga kali sapuan. Tanpa ada modifikasi yang diberikan, sistem mampu membedakan impedansi musa spp antara jenis-jenis mutu mentah, mengkal dan masak melalui diagram Argand yang digambar dari data impedansi masing-masing. Diagram Argand yang dihasilkan menunjukkan jenis mutu masak dari musa spp lebih besar (dalam Ohm) dari jenisj-jenis mutu di bawahnya. Sistem ini dapat membantu industri pembuatan tepung pisang yang memerlukan pemilahan jenis bahan baku bermutu tertentu. Kata kunci: sortir, mutu, buah pisang kepok, impedansi ABSTRACTCharacterization to sortir different qualities in industrial applications can be fulfilled by using a tool with limited capability. Sorting technique using a 0.5% accuracy Eval AD5933 EBZ evaluation board system has been carried out on kepok banana (musa spp) from the plantation of Enggano Island, Bengkulu province. The system powered by a 2.7 V – 5.5 V DC low-voltage excited waves from 4000 Hz to 100,000 Hz frequencies to three samples, three sweeps of each. Without any modification, the system has been able to segregate different quality types of unripe, almost ripe and ripe from their Argand diagram drawn from their impedance data. The Argand diagram characterizes that the quality type of banana ripe is more expanded (in Ohm) than the other quality types of below. The system is applicable for a banana flour manufacturing industry that requires the sorting of certain types of quality raw materials.Keywords: sorting, quality, musa banana, impedance
CHARACTERIZATION OF WASTE PET POWDER AS ATOMIZATION PRODUCT Pamuji, Hari; Alqap, A Sofwan F; Suandi, Agus
Rekayasa Mekanika: Jurnal Ilmiah Teknik Mesin Vol. 3 No. 2 (2019): Oktober 2019
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/rekayasamekanika.v3i2.9861

Abstract

A nozzle of diameter 25 cm of a closed coupled type was set at an outlet gap 0,05 mm to atomize polyethylene terephthalate plastic wastes. Parameters of pressure and heating temperature were varied into 5 bar, 6 bar and 7 bar pressures, and at 275?C, 285?C and 295?C heating. A vessel to collect the product was 40 cm diametrally away from the nozzle mouth. The products were the form of powders, yarn and liquid. The powders were only 4,77%, 6,45% and 2,94% of each heating temperature aforementioned.
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.
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.
Co-Authors Adhadhi Kurniawan Adhadi Kurniawan Afdhal K Mainil Agus Nuramal Agus Nuramal Agus Suandi, Agus Agustian, Alvin Bayu Eko Sumartono, Eko Ghozali, Syaiful Haidi, Junas Hardiyanto, Martin Helmizar Helmizar - Hendri Hestiawan Hendri Hestiawan Hestiawan, Hendri Hibatullah, Fauzi Ichsan, Muhammad Ibrahim Izza, Rohul Junas Haidi Kurniawan, Adhadhi M. Daigo Gusnanda Mochammad Yusa Muhammad Farid Nurul Hidayati Pamuji, Hari Refki Hernandes Saeful Rohman Simanungkalit, Roni Firnando SUPARDI, NURULIMAN Suzantry Handayani, Yanolanda VERONICA, SHINTIA Warsianto, Ardi Yanolanda Suzantry Handayani Yossie Anggraeny M Yovan Witanto Zuliantoni, Zuliantoni