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All Journal Jurnal Riset Perkebunan (JRP) Jurnal Andalas: Rekayasa dan Penerapan Teknologi Rangkiang Mathematics Journal Journal of Applied Mathematics and Modelling
Aulia Oktavia
Jurusan Teknik Elektro, Politeknik Negeri Padang
Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mathematics Other

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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.
The Use of Sensitivity Analysis to Find Maximum Profit in The Production Of Msme Angga Furniture Using The Simplex Method Dwita Septiani; Iswan Rina; Nurweni Putri; Aulia Oktavia
Journal of Applied Mathematics and Modelling Vol. 1 No. 2 (2025): Journal of Applied Mathematics and Modelling
Publisher : CIB Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64570/jamm.v1i2.36

Abstract

At time progresses, business competition becomes increasingly fierce. This also result in MSME (Micro,small dan Medium Enterprises  from various cities  competing fiercely. There are many MSME's that have emerged, one of which is Angga Furniture MSME which operates in the furniture sector. The aim of this research is to determine the maximum profit obtained using the Simplex Method and continue with Sensitivity Analysis to see to what extent the objective function coefficients and constants on the right side of the constraint function can  change without affecting the optimal solution. Based on calculation  using the Simple  Method, a maximum sales profit of IDR 2.830.000 is obtained if production is increased for 10 baby swings, 9 capsule chairs and 2 room deviders. Furthermore, using  Sensitivity Analysis calculations, the maximum sales profit is IDR 2.454.000 and the maximum sales profit is IDR 4.396.000.
Implementing the Accrued Benefit Cost and Attained Age Normal Methods for Pension Fund Calculations Sri Wahyu; Rahayu Arrezkya; Nur Agustiani; Aulia Oktavia; Lifeni Triara; Amalia Muradina; Rifantio Saldy; Redoa Asll Muhdaris
Rangkiang Mathematics Journal Vol. 4 No. 2 (2025): Rangkiang Mathematics Journal
Publisher : Department of Mathematics, Universitas Negeri Padang (UNP)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/rmj.v4i2.83

Abstract

Pension fund management often faces challenges arising from uncertainties in actuarial variables, such as retirement age, years of service, salary levels, and interest rates. Inaccurate calculations may result in fund deficits or impose excessive contribution burdens on companies. This study aims to identify the optimal method for calculating pension funds to ensure the maximization of pension program benefits. The research employs secondary data from a limited liability company, with documentation as the primary data collection instrument. The data include employees’ dates of birth, dates of registration for work, employment commencement dates, and wage records. The analysis focuses on normal contributions, actuarial liabilities, and fund accumulation using the Accrued Benefit Cost (ABC) and Attained Age Normal (AAN) methods. The results indicate that the AAN method generates higher normal contributions than the ABC method, making it more effective in preventing pension fund deficits. Conversely, the ABC method offers a more evenly distributed cost allocation throughout participants’ working periods. The findings suggest that the differences in results between the two methods are influenced by the length of service and the salary levels of participants.
Co-Authors Adam Jorli Wong Amalia Muradina Dwita Septiani Firmansyah - - Hasmiandy Hamid Hidrayani Hidrayani Iswan Rina Lifeni Triara Nofri Dodi Nur Agustiani Nurweni Putri Rahayu Arrezkya Redoa Asll Muhdaris Rifantio Saldy Riza Widia Sri Wahyu Witri Onanda Yudia Meka Seftiani Zahlul Ikhsan