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All Journal Jurnal Matematika dan Statistika serta Aplikasinya (Jurnal MSA) Jurnal Riset Perkebunan (JRP) Jurnal Andalas: Rekayasa dan Penerapan Teknologi
Aulia Oktavia
Jurusan Teknik Elektro, Politeknik Negeri Padang
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mathematics Medicine & Pharmacology Other

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Simulasi Gelombang Interface Menggunakan Skema Staggered Grid Aulia Oktavia
Jurnal MSA ( Matematika dan Statistika serta Aplikasinya) Vol 7 No 2 (2019)
Publisher : Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (343.57 KB) | DOI: 10.24252/msa.v7i2.10048

Abstract

Perbedaan salinitas,  temperatur, dan tekanan  menyebabkan  keadaan  air laut menjadi ter- stratifikasi  dengan massa jenis yang berbeda.  Lapisan fluida dengan massa jenis yang lebih kecil akan berada di atas fluida dengan massa jenis lebih besar.  Gelombang interface adalah gelombang yang terjadi  pada  batas  antara dua lapisan  air laut  dengan  massa jenis yang berbeda.   Dalam  hal ini, persamaan  air dangkal  dua lapis digunakan  untuk  mempelajari gelombang interface.  Skema staggered grid diterapkan untuk  menyelesaikan persamaan  air dangkal  dua lapis ini.  Pertama akan disimulasikan  mode barotropic  dan baroclinic.  Peri- ode dari masing-masing  mode ini dihitung  dan menunjukkan kesesuaian  dengan  formula analitik.  Selanjutnya  skema ini juga digunakan  untuk  mensimulasikan  gelombang panjang interface yang berpropagasi  melalui topografi dengan kedalaman  yang berbeda  (fenomena shoaling ), juga masalah  dam break yang terjadi  pada interface dari dua lapisan fluida.
Populasi Dan Tingkat Serangan Kumbang Tanduk (Oryctes Rhinoceros L.) Pada Pertanaman Kelapa Sawit Di PT. Cakra Alam Sejati, Provinsi Riau Adam Jorli Wong; Hidrayani; Hasmiandy Hamid; Zahlul Ikhsan; Aulia Oktavia
Jurnal Riset Perkebunan Vol. 3 No. 1 (2022): Jurnal Riset Perkebunan (JRP)
Publisher : Jurusan Budidaya Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (406.133 KB) | DOI: 10.25077/jrp.3.1.1-11.2022

Abstract

The increasing area of oil palm plantations (Elaeis guineensis Jacquin) in Indonesia every year creates opportunities for pest that can harm oil palm plantations to develop, one of which is the coconut palm rhinoceros beetle (Oryctes rhinocheros Linnaeus). This research aims to determine the coconut palm rhinoceros beetle population, the percentage of plants attacked, and the intensity of the attack on the planting area Kebun-24 palm plantations of PT. CAS (Cakra Alam Sejati). In this research used a survey method on oil palm plantations Kebun-24. Determination of sample blocks was carried out by purposive sampling and plant samples were selected randomly. The location of the research was carried out in Pelalawan Regency, namely in the Kebun-24 plantation of PT. CAS, Riau Province. The results of the research, the highest population was TBM block with an average of 11.27 coconut palm rhinoceros beetle individuals. The highest coconut palm rhinoceros beetle population was in block 4c (1 year) with 86 imago individuals and 126 larvae individuals, while the lowest population was in block 11a (8 years) with 14 imago individuals and 68 larvae individuals. The highest percentage of affected plants was TM block with an average of 98.67%. The highest attack intensity of coconut palm rhinoceros beetle was TM block with an average of 37.07%. The percentage of affected plants and the highest attack intensity were in block 7b (6 years) with 100% percentage of affected plants and 37.60% attack intensity, while the lowest was block 14b (2 years) with 72.00% percentage of affected plants and 32, 00% attack intensity
Pengembangan Instalasi Penerangan dan Instalasi Tenaga Listrik Mushalla Al-Barkah Lambung Bukit Kecamatan Pauh Nofri Dodi; Yudia Meka Seftiani; Aulia Oktavia; Firmansyah Firmansyah; Riza Widia; Witri Onanda
Jurnal Andalas: Rekayasa dan Penerapan Teknologi Vol. 3 No. 1 (2023): Juni 2023
Publisher : Jurusan Teknik Elektro, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jarpet.v3i1.40

Abstract

Lambung Bukit Batu Busuk, Pauh, located in Padang City, West Sumatera established a prayer room which was named Mushalla Al-Barkah. This mushalla is used as a place of worship for muslims around Lambung Bukit Batu Busuk Padang. Some of the the worship activities carried out at the mushalla, include congregational prayer activities, Al-Qur’an education and other worship activities. These activities really need electricity in their implementation. The mushalla need loudspeakers to adzan, the mushalla needs lights for lighting at night. However, the incomplete installasyion of electrical installations in the mushalla has resulted in delays in worship activities in the mushalla for the community around Lambung Bukit Batu Busuk, Padang. Because of that the community implementation team carried out the development of lighting installastions and elekctric power installasions at Mushalla Al-Barkah. After this activitiy was complete at the mushalla, the mushalla’s electrical installation was perfect. This activity is useful for partners and can be used as a promotional agenda for the people Lambung Bukit, Pauh to get to know the Padang State Polytechnic.
Co-Authors Adam Jorli Wong Firmansyah - - Hasmiandy Hamid Hidrayani Hidrayani Nofri Dodi Riza Widia Witri Onanda Yudia Meka Seftiani Zahlul Ikhsan