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All Journal Jurnal Penelitian Kelapa Sawit Metris: Jurnal Sains dan Teknologi
Nur Tjahyo Eka Darmayanti
Badan Riset dan Inovasi Nasional
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Education Engineering Industrial & Manufacturing Engineering

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Analisis Titik Kritis Penjaminan Kualitas Benih Kelapa Sawit di Indonesia Febrian Isharyadi; Biatna Dulbert Tampubolon; Bambang Prasetya; Nur Tjahyo Eka Darmayanti; Utari Ayuningtyas; Ary Budi Mulyono; Daryono Restu Wahono; Ellia Kristiningrum; Novin Aliyah; Rika Dwi Susmiarni; Nuri Wulansari
Jurnal Penelitian Kelapa Sawit Vol 30 No 3 (2022): Jurnal Penelitian Kelapa Sawit
Publisher : Pusat Penelitian Kelapa Sawit

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22302/iopri.jur.jpks.v30i3.187

Abstract

Oil palm seeds are a very important element in determining the yield of oil palm plantations. The use of quality oil palm seeds will provide maximum productivity. However, until now there is still a lot of use of llegitimate oil palm seeds, especially on smallholder plantations. Standardization is the right way to guarantee the quality of oil palm seeds through the determination of strict criteria in the selection process for the seeds planted. As the initial stage and the basis for developing standards, it is necessary to identify the critical point in the supply chain of oil palm seeds to consumers. So, this study aims to analyze the critical point of guaranteeing the quality of oil palm seeds in Indonesia, to guarantee the availability of quality oil palm seeds. This study uses a qualitative exploratory method to obtain data and information related to critical points in the supply chain of oil palm seeds from respondents consisting of producer, breeder, Government, and expert in the field of oil palm seeds. The results showed there were 5 (five) critical points in ensuring the quality of oil palm seeds in Indonesia, namely the production process, especially at the pollination stage, the breeding process, the certification process, the supervision process, and the knowledge of the planters, especially in smallholder plantations. The critical points are recommended as the basis for developing national standards in guaranteeing quality oil palm seeds for the realization of the Government's program to increase the productivity of oil palm plantations in Indonesia.
Experimental Tests of Effect of Vertical Lifting Height, Horizontal Distance, and Weight Load Lifting Method on Muscle Activation Value Generated Using Electromyography Jessica; Yanto; Wibawa Prasetya; Nur Tjahyo Eka Darmayanti
Jurnal METRIS Vol. 24 No. 01 (2023): 2023
Publisher : Prodi Teknik Industri, Fakultas Teknik - Universitas Katolik Indonesia Atma Jaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/metris.v24i01.4563

Abstract

In industry, manual lifting activities certainly involve muscles and generate risks if done improperly. There are problems in the form of complaints from industrial workers on manual lifting activities that are carried out in a less ergonomic manner. This study aims to determine the effect of lifting factor variables on the resulting level of muscle activation. In this case, three factors are used, namely the lifting method factor, the horizontal distance factor, and the vertical distance factor, each of which has two factor levels to produce eight combinations of lifting factors. Randomization was carried out on research subjects totalling 10 people. Previous research that has been done manually is by calculating the pulse resulting from a lifting activity according to a specified frequency. In this study, monitoring of muscle activity was carried out automatically using an instrument called Electromyography (EMG) at three points of the hand muscles, namely the biceps brachii muscle, triceps brachii muscle, and brachioradialis muscle. The results of this study indicate the best combination based on the value of muscle activation on the biceps brachii muscle, triceps brachii muscle, and brachioradialis muscle which respectively include combination 2 (M1-H2-V1) with a significance value of 0.002, combination 6 (M2-H2 -V1) with a significance value of 0.000 and combination 2 (M1-H2-V1) with a significance value of 0.013. The resulting combination of the best lifting factors can be used as a reference and recommendations for the ideal lifting posture and conditions for workers in minimizing possible injuries
Co-Authors Ary Budi Mulyono Bambang Prasetya Biatna Dulbert Tampubolon Daryono Restu Wahono Ellia Kristiningrum Febrian Isharyadi Jessica Novin Aliyah Nuri Wulansari Rika Dwi Susmiarni Utari Ayuningtyas Wibawa Prasetya Yanto