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All Journal International Journal of Electrical and Computer Engineering Jurnal Keteknikan Pertanian Indonesian Journal of Engagement, Community Services, Empowerment and Development (IJECSED) Jurnal Karya untuk Masyarakat (JKuM)
Rismen Sinambela
Christian University Indonesia
Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Education Electrical & Electronics Engineering Social Sciences Other

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A RIPENESS STUDY OF OIL PALM FRESH FRUIT AT THE BUNCH DIFFERENT POSITIONS Rismen Sinambela
Jurnal Keteknikan Pertanian Vol. 8 No. 1 (2020): Jurnal Keteknikan Pertanian
Publisher : PERTETA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19028/jtep.08.1.9-14

Abstract

The paper aims to study the position of the optimum oil palm ripeness at the bunch different positions. This information is essential to complete a measurement procedure to detect oil palm fresh fruit bunch (FFB) maturity so that the detection devices can directly measure the optimal mature position as a representative of the entire FFB characteristics. In this study, the oil palm FFB (Elaeis guineensis Jacq. var. tenera) with the various ripeness stages (4 until 22 weeks after anthesis) were collected and divided from three positions, i.e., proximal, central and distal. Moreover, each fruit in each of these positions was subjected to sample preparation to identify water and oil content. The water and oil content were completed based on the oven test method and the Soxhlet extraction technique, respectively. The optimum ripeness position is determined based on the lowest water content and the highest oil content. Based on the analysis, during the process of oil palm maturation occurs a decrease in water content and an increase in oil content. In addition, the average water content of palm fruit varies greatly depending on its position based on the analysis, i.e., proximal (45.38±5.62%), central (35.30±3.34%) and distal (41.98±2.57%). The average oil content of oil palm fruit in the central position is higher oil content (25.10±1.72%) compared to the proximal (10.00±0.77%) and distal position (13.77±1.22%). We suspect that the chemical content differences of palm fruit in various positions are due to the inequality of the respiration rate and ethylene production throughout FFB. In addition, overall it can be concluded that the fruit in the central FFB position has an optimal ripeness level compared to the proximal and distal position. Thus, the measurement position recommended in evaluating palm maturity is at the central position of FFB.
Pemanfaatan Gang sebagai Ruang Edukasi dan Interaksi Anak pada RW 02 Kelurahan Paseban Jakarta Pusat Sitti Wardiningsih; Sitinah Sitinah; Serepina Tiur Maida; Retno Indriyati K.; Rismen Sinambela
Jurnal Karya untuk Masyarakat Vol 2, No 1 (2021): Jurnal Karya untuk Masyarakat
Publisher : STIKS Tarakanita

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (371.461 KB) | DOI: 10.36914/jkum.v2i1.488

Abstract

Gang sebagai ruang umum dapat digunakan untuk pemanfaatan sebagai Ruang Publik (RP) untuk berbagai kegiatan edukasi dan interaksi anak. Berdasarkan pengamatan tumbuh kembang anak saat ini di lingkungan RW 02 dalam phase pertumbuhan 3-12 tahun. Berdasarkan hal tersebut maka dilakukan kegiatan pengabdian pada masyarakat yang bertujuan agar masyarakatt di Kelurahan Paseban Jakarta Pusat dapat memanfaatkan gang sebagai ruang edukasi dan interaksi anak di luar jam belajar. Pemanfaatan gang sebagai ruang edukasi dan interaksi difungsikan semaksimal mungkin sebagai area belajar, bermain dan interaksi anak-anak warga masyarakat di lingkungan ini. Kegiatan ini dengan metode pencerahan kepada orang tua dan anak yang secara langsung melakukan kegiatan bermain sambil belajar yang terbagi dalam kelompok umur 3-6 tahun bermain dengan kertas dan 6-12 tahun praktik membuat ondel-ondel. Kegiatan ini dimulai dengan diskusi bersama tentang arti dan makna gang sebagai ruang edukasi dan interaksi, sehingga mereka memahmi arti pentingnya kedua hal tersebut. Kegiatan diikuti oleh 10 orang ibu-ibu rumah tangga dan anak-anak sebanyak 11 orang dalam usia bermain. Hasil akhir dari kegiatan ini menjadikan mereka lebih tanggap dan memahami dalam pemanfaatan gang sebagai ruang edukasi dan interaksi bahkan sebagai area transaksi ekonomi atau ekonomi lowes sesuai kebutuhan warga di limgkungan ini Kelurahan Paseban ini.
REPAIR OF LOUDSPEAKERS AS A SUPPORT FOR WORSHIP ACTIVITIES AT THE AL-MADINAH AL-MUNAWWAROH PERUM MOSQUE. SUNRISE GARDEN BUKIT PUTRA CILEUNGSI WEST JAVA: PERBAIKAN PENGERAS SUARA SEBAGAI PENUJANG KEGIATAN IBADAH DI MASJID AL-MADINAH AL-MUNAWWAROH PERUM. SUNRISE GARDEN BUKIT PUTRA CILEUNGSI JAWA BARAT Rismen Sinambela; Ito Khikmatulloh; Aldul Rahman; Yosep Hendriyana
Indonesian Journal of Engagement, Community Services, Empowerment and Development Vol. 2 No. 3 (2022): Indonesian Journal of Engagement, Community Services, Empowerment and Developme
Publisher : Yayasan Education and Social Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53067/ijecsed.v2i3.79

Abstract

Mosque loudspeakers or mosque speakers are an electronic device used to increase the sound intensity in mosques. Usually, each mosque has two loudspeaker systems, namely inside and outside. External loudspeakers are generally used for adhan and iqomah, while for others such as prayers, lectures and tadarus only use internal speakers. However, in several areas, a number of mosques, regardless of their neighbors who live nearby, also use their external loudspeakers for various activities other than the call to prayer and iqomah, which creates problems in society. Scientists, including those from Harvard University, found that besides causing hearing loss, noise pollution can also reduce intelligence, memory, mental health, lead to cardiovascular disorders (heart disease and stroke), type 2 diabetes mellitus, etc
Shannon entropy on near-infrared spectroscopy for nondestructively determining water content in oil palm Inna Novianty; Walidatush Sholihah; Gema Parasti Mindara; Muhammad Iqbal Nurulhaq; Anifatul Faricha; Rismen Sinambela; Pradeka Brilyan Purwandoko; Muhammad Achirul Nanda
International Journal of Electrical and Computer Engineering (IJECE) Vol 13, No 5: October 2023
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijece.v13i5.pp5397-5405

Abstract

Indonesia is the world’s largest producer of palm oil. To preserve its competitive advantages, the Indonesian oil palm sector must expand high-quality palm oil output. In oil palm quality control, the water content is a crucial parameter as it can be used as a reference to determine the right harvest time. Thus, this study proposed a near-infrared (NIR) spectroscopy as a fast and non-destructive analysis to assess oil palm water content. NIR spectra were processed using Shannon entropy to describe the characteristics at each wavelength. In this study, oil palm fruit samples at various maturity levels were collected with eight different maturity fractions. Based on the analysis, the Shannon entropy value is closely related to any changes in the water content of palm oil. The entropy value has a decreasing trend as the water content increases. The proposed technique can predict the water content of an oil palm with satisfactory performance with values of 0.9746 of coefficient of determination (R2) and 2,487 of root mean square error (RMSE). Application of this model will lead to a fast and accurate prediction system related to oil palm water content.
Co-Authors Aldul Rahman Anifatul Faricha Gema Parasti Mindara Inna Novianty Ito Khikmatulloh Muhammad Iqbal Nurulhaq Nanda, Muhammad Achirul Pradeka Brilyan Purwandoko Retno Indriyati K. Serepina Tiur Maida Sholihah, Walidatush Sitinah Sitinah Sitti Wardiningsih Yosep Hendriyana