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PERTUMBUHAN BIBIT GAHARU (Aquilaria malaccencis) DENGAN PEMBERIAN ZAT PENGATUR TUMBUH ASAL BAWANG MERAH Aulia Putri Siregar; Elza Zuhry; Sampoerno '
Jurnal Online Mahasiswa (JOM) Bidang Pertanian Vol 2, No 1 (2015): Wisuda February 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Pertanian

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Abstract

Agarwood (Aquilaria malaccensis) is one character of forest plants that deliver really good quality with high economic value, because the forest contains a fragrant resin To overcome the scarcity of agarwoodgaharu cultivation needs to be exercised both in the forest or outside the woodland region.Referring to the cultivation of the required quality gaharu seedlings.The means to answer that is by giving PGR.Auxin found in plants are very few in number, and so it should be added exogenous auxin.One of the natural plant growth regulator that can be utilized in breeding agarwood was the juice of the onion. Juice of onion contains growth regulators, which have a role as Indol Acetic Acid. The experimentation was led at the experimental field of the Faculty of Agriculture, University of Riau. The experiment was conducted in December 2013 through the month of April 2014. This research was carried out experiments using a completely randomized design (CRD) consisting of five treatments, Z0: without PGR origin onion, Z1: PGR origin onion 5 ml / l of water, Z2: PGR origin onion 10 ml / l of water, Z3: PGR origin onion 15 ml / l of water and Z4: PGR origin onion 20 ml / l of water. The parameters measured were plant height, in the number of leaves , leaf area , leaf weight , stem circumference , number of branches , root volume , wet weight , dry weight and the ratio of the root crown. Giving PGR on agarwood seeds can increase the value of agarwood seedling growth, as determined in the parameters as height, increase in the number of leaves, leaf area, stem girth, fresh weight and dry weight.Offering a natural PGR derived from the onion with a concentration of 1.5 % and 2 % gave the best seedling growth Keyword : Onion, PGR, seedlings agarwood.
Optimizing Sharia Pension Funds: Toward Superior Non-Bank Finance Zein, Aliman Syahuri; Nasution, Astari Salsabila; Siregar, Aulia Putri; Safitri, Destia Indah; Harahap, Nova Khairani; kholila, Nur; Simbolon, Nurul Faradilla
AL-MASHARIF: JURNAL ILMU EKONOMI DAN KEISLAMAN Vol 12, No 1 (2024)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/masharif.v12i1.12453

Abstract

Retirement is considered a desire to earn money after working, but the age leading up to retirement is still considered an unproductive time. This research uses literature review to collect, analyze and interpret data from various literature sources. Literature review is an integral part of research. By increasing productivity, raising public awareness, becoming a source of funding for development, and offering more stable investment options, Islamic pension programs can help reduce poverty by improving economic and financial stability in the long run, reducing the burden on the government pension system, and allowing individuals to be more sterile. Non-bank financial institutions use social media to increase public participation in Islamic pension funds by listening, talking, energizing, supporting and embracing. Therefore, social media platforms play an important role in encouraging people to join Islamic pension funds managed by non-bank financial institutions. 
Optimizing Sharia Pension Funds: Toward Superior Non-Bank Finance Zein, Aliman Syahuri; Nasution, Astari Salsabila; Siregar, Aulia Putri; Safitri, Destia Indah; Harahap, Nova Khairani; kholila, Nur; Simbolon, Nurul Faradilla
AL-MASHARIF: JURNAL ILMU EKONOMI DAN KEISLAMAN Vol 12, No 1 (2024)
Publisher : UIN Syekh Ali Hasan Ahmad Addary Padangsidimpuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24952/masharif.v12i1.12453

Abstract

Retirement is considered a desire to earn money after working, but the age leading up to retirement is still considered an unproductive time. This research uses literature review to collect, analyze and interpret data from various literature sources. Literature review is an integral part of research. By increasing productivity, raising public awareness, becoming a source of funding for development, and offering more stable investment options, Islamic pension programs can help reduce poverty by improving economic and financial stability in the long run, reducing the burden on the government pension system, and allowing individuals to be more sterile. Non-bank financial institutions use social media to increase public participation in Islamic pension funds by listening, talking, energizing, supporting and embracing. Therefore, social media platforms play an important role in encouraging people to join Islamic pension funds managed by non-bank financial institutions. 
Pengaruh Tekanan Terhadap Umur Elektroda Pada Proses Las Titik Untuk Material Flow Through Heater Fadilah, Nurul; Havwini, Tian; Butar Butar, Hendra; Mantik, Andrew William Patria; Sugondo, Ebeng; Siregar, Aulia Putri
VOCATECH: Vocational Education and Technology Journal Vol 7, No 2 (2025): December
Publisher : Akademi Komunitas Negeri Aceh Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38038/vocatech.v7i2.213

Abstract

     AbstractThe pressure supplied to the electrode has a direct impact on the quality of the weld joint, making it one of the aspects that significantly affects the spot-welding process. The electrode's short lifespan is a major problem in resistance spot welding for high-volume vehicle manufacturing since the electrode component is crucial to the spot-welding process. The Work Instruction specifies the electrode's parameters, which include an energy storage of 209 V and an air pressure of 0.25±0.05 MPa. A charge voltage of 178 V is used throughout the welding process, with a squeeze of 9–12 seconds and a compress duration of 12 seconds. The holder holds the electrode along a length of 21 mm, with the upper and lower electrodes separated by 12 mm. The relative humidity is 70% and outside temperature is 30°C. 400-grit sandpaper is used to clean the electrode surface following 500 welds. An investigation of how electrode pressure affects electrode longevity during spot welding was carried out. The study used SolidWorks software's static and fatigue simulation techniques, modified for field circumstances. The pressing force applied to the electrode and its effect on electrode longevity were examined using this program. With a damage percentage of just 0.002%, the results demonstrated that a pressure of 0.25 MPa had no discernible effect on electrode degradation within 2100 cycles. Under this pressure, the electrode may last up to 100,000,000 cycles before failing. The study's findings indicate that the pressing process has little effect on electrode longevity.Keywords:Electrode., Lifetime., Spot welding., Solidworks simulation  AbstrakSalah satu faktor yang sangat mempengaruhi proses las titik, yaitu tekanan terhadap elektroda, karena akan secara langsung mempengaruhi kualitas sambungan pada pengelasan. Komponen elektroda sangat penting dalam metode pengelasan titik, sehingga umur pakai elektroda yang pendek menjadi masalah krusial dalam pengelasan titik resistansi pada manufaktur mobil bervolume tinggi. Parameter yang digunakan dalam menggunakan elektroda ini tercantum dalam Work Instruction, dengan Energy Storage 209 V dan Air Pressure 0.25±0.05 Mpa. Pada proses pengelasan menggunakan charge voltage 178 squeeze 9-12s dan compress 12. Jarak antara elektroda atas dan bawah 12mm, holder akan menjepit elektroda sepanjang 21mm. Suhu ruangan 30℃, kelembapan udara Rh70. Jika pengelasan sudah 500 kali, elektroda diamplas permukaannya menggunakan kertas pasir 400 CW. Adapun penelitian yang dilaksanakan untuk mengetahui pengaruh penekanan pada elektroda terhadap masa pakai dalam proses pengelasan titik. Pada penelitian yang dilakukan pengujiannya akan menggunakan metode simulasi static dan fatigue pada software solidworks dan telah diseuaikan dengan kondisi dilapangan, penggunaan software ini digunakan untuk melihat gaya tekan yang diberikan pada elektroda yang dapat mempengaruhi umur dari elektroda. Hasil penelitian sudah dilaksanakan menunjukkan bahwa tekanan sebesar 0,25 MPa tidak berdampak signifikan pada kerusakan elektroda dalam 2100 siklus karena persentase kerusakan yang didapat sebesar 0.002% serta siklus pakai yang didapatkan dengan tekanan tersebut bisa mencapai 100.000.000 untuk bisa membuat elektroda tersebut rusak. Berdasarkan hasil penelitian, disimpulkan bahwa umur pakai elektroda tidak dipengaruhi secara signifikan oleh proses penekanan.Kata Kunci:             Elektroda., Umur pakai., Las titik., Uji simulasi Solidworks