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All Journal Jurnal Ilmiah Teknologi dan Rekayasa Jurnal Usia Dini Jurnal Sains dan Teknologi Jurnal Teknologi Pendidikan JISI UMJ (Jurnal Integrasi Sistem Industri UMJ) Jurnal IPTEK PRODUCTUM : Jurnal Desain Produk (Pengetahuan dan Perancangan Produk) JMM (Jurnal Masyarakat Mandiri) Journal of Education and Instruction (JOEAI) International Journal of Community Service Learning Journal of Engineering and Scientific Research (JESR) Jurnal Sistem Teknik Industri Jurnal Riset Teknologi Pencegahan Pencemaran Industri International Journal of Tourism and Hospitality in Asia Pasific Serambi Engineering
Yosef Barita Sar Manik
Environmental Engineering Study Program, President University, Cikarang, Indonesia
Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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Analisis Kebutuhan Sumber Daya Manusia di Instalasi Gawat Darurat (IGD) untuk Mempercepat Waktu Respon dengan Metode Discrete Event Simulation (Studi Kasus: IGD RSU HKBP Balige) manik, yosef; Simorangkir , Desi
Jurnal Sistem Teknik Industri Vol. 22 No. 2 (2020): JSTI Volume 22 Number 2 July 2020
Publisher : TALENTA Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jsti.v22i2.3943

Abstract

Salah satu ukuran performansi untuk menilai kecepatan pelayanan di IGD adalah waktu respon. Waktu respon adalah waktu antara pasien tiba di IGD hingga pasien ditangani oleh dokter IGD. Standar waktu respon berdasarkan Keputusan Menteri Kesehatan Republik Indonesia Nomor 856 Tahun 2009 adalah maksimum 5 (lima) menit. Penelitian ini bertujuan untuk menentukan jumlah kebutuhan sumber daya manusia (dokter dan perawat) di IGD RSU HKBP Balige sehingga waktu respon terhadap pasien menjadi lebih cepat dan sesuai standar. Metode yang digunakan pada penelitian ini adalah Discrete Event Simulation. Tujuan penelitian dicapai dengan membuat sebuah model simulasi IGD RSU HKBP Balige menggunakan perangkat lunak simulasi Arena dan melakukan eksperimen terhadap model simulasi tersebut. Hasil penelitian ini menunjukkan bahwa waktu respon rata-rata di IGD RSU HKBP Balige dapat diturunkan dari 8,61 menit menjadi 4,14 menit, serta waktu respon maksimum dari 26,30 menit menjadi 14,09 menit dengan penambahan sumber daya manusia sebanyak 2 dokter dan 3 perawat per shift.Kata kunci : pemotong, produktivitas, singkong, Metode Rasional.
Analysis of Stakeholder Attitudes toward Sustainable Tourism Development of Lake Toba Area Nababan, Elserida; Manalu, Santi Agustina; Siboro, Benedikta Anna Haulian; Manik, Yosef
International Journal of Tourism and Hospitality in Asia Pasific Vol 4, No 3 (2021): October 2021
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (452.987 KB) | DOI: 10.32535/ijthap.v4i3.1195

Abstract

The purpose of this study is to analyze the attitude of stakeholders towards sustainabletourism development in Lake Toba, Indonesia. The indicators used to measurestakeholder’s attitude were adopted from the United Nations World Tourism Organizationand grouped into the human system and ecosystem categories. A total of 361questionnaires were collected from several stakeholders of Lake Toba tourism.Stakeholders’ attitudes were analyzed by multiplying their level of trust in their level ofimportance to the tourism development indicators. The gap between trust andimportance will be mapped on the importance-performance analysis diagram. Theanalysis indicated that the stakeholders' attitude is generally optimistic about the tourismdevelopment in Lake Toba. However, the level of optimism varies among stakeholders.Tourism entrepreneurs and workers have the lowest attitude value compared to localpeople and tourists. Also, stakeholders which have low income or whose income partlyor most comes from the tourism industry or live in the Lake Toba Area are those in thekey priority to consider. They provide the lowest level of trust but provide the highestlevel of importance in development. Decision-makers must give a more serious approachto these stakeholders to get maximum support.
Identification, Characterization and Stakeholder Analysis of Eco-tourism Destinations in Lake Toba Area Paramitha, Natalia; Manik, Yosef; Halog, Anthony
International Journal of Tourism and Hospitality in Asia Pasific Vol 2, No 1 (2019): February 2019
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (298.328 KB) | DOI: 10.32535/ijthap.v2i1.355

Abstract

This study is aimed at identifying and characterizing the eco-tourism destinations in Lake Toba Area as well as mapping and analyzing the stakeholders involved in its value chain and governance. The study was conducted between January and April 2018 whereby a snowball sampling method was employed in identifying the eco-tourism destinations. A semi-structured questionnaire was used to record the characteristics of each destination point in terms of access, attraction, and amenities. Seventeen eco-tourism destinations located in seven regencies along Lake Toba Area have been identified. While access to these tourist destinations has been good enough, the destinations are lacking of attractions. The attractions are limited to natural panoramic views, such a pine forest and spectacular lake view without adequate activity options that can be done by tourist. In terms of supporting amenities, there are still many rooms that require attention and improvement. After that, the study continued by analyzing the role of stakeholders involved directly or indirectly in the operation, governance, and policy of eco-tourism destinations in the lake Toba region. The stakeholders are mapped and clustered based upon their power and interest into four categories: (i) key players, (ii) subjects, (iii) trend setter, and (iv) the crowd. It appears that owner/ administrator, regional tourism office, and several interrelated government offices, such as the Ministry of Tourism and the Ministry of Forestry and Environment are key players which possess high power and interest. On the other hand, private sector, mass media, and local communities are identified as dormant stakeholders or potential trend setters to some extent who possess high power but have low interest. The results of this study are essential inputs for further investigating the socio-economic impacts of the tourism-based development in the Lake Toba through Social Life Cycle Assessment methodology. Keywords: Lake Toba Area, eco-tourism, stakeholder analysis, life cycle assessment
Analysis of Stakeholder Attitudes toward Sustainable Tourism Development of Lake Toba Area Nababan, Elserida; Manalu, Santi Agustina; Siboro, Benedikta Anna Haulian; Manik, Yosef
International Journal of Tourism and Hospitality in Asia Pasific Vol 4, No 3 (2021): October 2021
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/ijthap.v4i3.1195

Abstract

The purpose of this study is to analyze the attitude of stakeholders towards sustainabletourism development in Lake Toba, Indonesia. The indicators used to measurestakeholder’s attitude were adopted from the United Nations World Tourism Organizationand grouped into the human system and ecosystem categories. A total of 361questionnaires were collected from several stakeholders of Lake Toba tourism.Stakeholders’ attitudes were analyzed by multiplying their level of trust in their level ofimportance to the tourism development indicators. The gap between trust andimportance will be mapped on the importance-performance analysis diagram. Theanalysis indicated that the stakeholders' attitude is generally optimistic about the tourismdevelopment in Lake Toba. However, the level of optimism varies among stakeholders.Tourism entrepreneurs and workers have the lowest attitude value compared to localpeople and tourists. Also, stakeholders which have low income or whose income partlyor most comes from the tourism industry or live in the Lake Toba Area are those in thekey priority to consider. They provide the lowest level of trust but provide the highestlevel of importance in development. Decision-makers must give a more serious approachto these stakeholders to get maximum support.
Penciptaan Teknologi Tepat Guna untuk Peningkatan Kualitas dan Produktifitas Produksi Produk Turunan Jahe Merah di Sumatera Utara Benedikta Anna Haulian Siboro; Manik, Yosef; Tampubolon, Grace Manzoya; Situmorang, Eva Daoni Veronika; Sinaga, Hotma
International Journal of Community Service Learning Vol. 7 No. 4 (2023): November
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/ijcsl.v7i4.67881

Abstract

Sebuah UMKM produsen produk turunan jahe merah di Sumatera Utara menghadapi permasalahan dalam produktivitas dan kualitas proses produksinya. Masalah utama yang dihadapi adalah waktu yang tinggi untuk mencuci jahe merah dan ketidakseragaman hasil pemotongan permen jahe. Untuk mengatasi masalah ini, tim pengabdian kepada masyarakat menciptakan teknologi tepat guna menggunakan pendekatan rekayasa balik. Teknologi ini terdiri dari alat pencuci jahe merah mekanis berbentuk tabung dengan daya listrik dan pisau pemotong permen jahe berbahan stainless steel yang menyerupai garpu dengan 10 mata pisau. Hasil pengujian menunjukkan bahwa alat pencuci jahe merah ini mampu membersihkan 150 kg jahe merah dalam 1 jam dan mengelupas lebih dari 75% kulit jahe merah, meningkatkan produktivitas sebesar 12 kali lipat. Pisau pemotong permen jahe mampu memotong 100 biji permen berukuran 1,5 x 1,5 cm dalam 11 detik dengan hasil pemotongan yang seragam. Teknologi tepat guna ini telah diserahterimakan dan terbukti meningkatkan kinerja produksi UMKM mitra pengabdian kepada masyarakat. Dengan demikian, penelitian ini mengatasi masalah produktivitas dan kualitas dalam proses produksi UMKM produsen produk turunan jahe merah. Teknologi tepat guna yang dikembangkan berhasil mengurangi waktu pencucian jahe merah dan meningkatkan seragamitas hasil pemotongan permen jahe. Implikasi dari penelitian ini adalah peningkatan kinerja produksi UMKM dan potensi peningkatan daya saing di pasar.
Instrumen Penilaian Derajat Kecanggihan Sistem Pendidikan E-Learning Usia Dini (Studi Kasus: Pendidikan Formal TK (Taman Kanak-Kanak) Dengan Pendekatan Teknometrik Manik, Yosef Barita Sar; Simbolon, Vismeike Septauli; Simanjuntak, Jesica Pratiwi; Siagian, Ellen; Tambunan, Yohana; Nababan, Christine; Lubis, Windy; Pangaribuan, Natasya; Siahaan, Monalisa
Jurnal Usia Dini Vol. 7 No. 2: Desember 2021
Publisher : PG PAUD FIP UNIMED

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jud.v7i2.30589

Abstract

Pendidikan mengalami disrupsi dalam skala besar dikarenakan otomatisasi dan kemajuan teknologi, informasi menjadi aksesibel dan peran lembaga pendidikan bukan lagi menjadi satu-satunya sumber ilmu pengetahuan dan informasi. Penelitian ini bertujuan untuk membuat kerangka penilaian teknologi e-learning pada pendidikan usia dini (PAUD) kategori formal yaitu Taman Kanak-kanak (TK) dan untuk merumuskan kriteria dan indikator penilaian teknologi dengan metodologi teknometrik, dimana kriteria tersebut akan dikelompokkan menjadi 4 aspek yaitu technoware, humanware, infoware, dan orgaware. Hasil penelitian menunjukkan komponen teknologi yang digunakan sebagai parameter penilaian derajat kecanggihan teknologi pembelajaran e-learning pada usia dini kategori formal yaitu taman kanak-kanak yang dirangkum dan dispesifikasikan ke dalam bentuk kriteria, sub-kriteria, dan sub-sub kriteria.
Hazard Identification, Risk Assessment and Control (HIRAC) on Water Solid Contents Determination at Environmental Chemistry Laboratory of President University Manik, Yosef Barita Sar; Mayriza, Azka Leona; Putri, Brilian Maulani; Keisha Fawwaaz; Huri, Khalila Kireina; Maulidinnisa, Vira Puspita
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 15 No. 2 (2024): November
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2024.v15.no2.p94-102

Abstract

This study conducted a Hazard Identification and Risk Assessment (HIRA) on Solid Contents Experiment that is taking place in the President University Environmental Engineering Laboratory. The main objective in this study is to identify potential hazard during experiment, to understand the risk level of hazards in the Environmental Engineering Laboratory, and to propose strategies and give improvement in laboratory practices. The methods used in this study is Hazard Identification, Risk Assessment and Control (HIRAC). As the result, the hazards that are identified in this study is slip and fall, respiratory hazard, fragile object, burn and physical injury, and electrical hazard. There are 18 hazards observed, and priority sorting is done to identify which hazard is high and medium in level and needs further caution, which turned out to be 12 medium to high hazards. The most critical hazard is pouring the water sample inti the vacuum using volumetric glass, because it has risk of slipping, falling, and handling when the water sample is spilled, and it is also a fragile object. So, this study identifies the effectiveness of HIRA method, finding steps that should be done to improve the operationsl conditions of the laboratory, and update practical education afterwards.
Design of Preventive Maintenance System for A Product Design Lab using Reliability Centered Maintenance (RCM) Methodology Marpaung, Bintang Rachel Aprilia; Manik, Yosef; Siboro, Benedikta Anna Haulian
Jurnal IPTEK Vol 25, No 2 (2021)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2021.v25i2.2369

Abstract

The product design and innovation laboratory, which is still relatively new, does not yet have a maintenance model to anticipate damages that may occur in the future. The purpose of this research is to build preventive maintenance to anticipate unwanted events such as sudden damage and Standard Operational Procedure (SOP) for laboratory facilities. The method used is Reliability Centered Maintenance (RCM) using EasyFit 5.5 software, obtained a repair schedule with minimum downtime. The results of the Reliability Centered Maintenance (RCM) method obtained maintenance recommendations in the form of Condition Directed (CD) on 14 components that might damage the product design and innovation laboratory facilities, Finding Failure (FF) on 8 components that might damage the design laboratory facilities. products and innovations and Time Directed (TD) on 5 components that may cause damage to product design and innovation laboratory facilities, and also Based on the results of preventive maintenance built, there is a Standard Operational Procedure (SOP) which includes the use of laboratory facilities following work instructions for the use of equipment, use of facilities the laboratory follows the work instructions for use, all validation results must be stored in the form of records in the form
Spatial Analysis of Air Pollution Dispersion from a Stationary Source through Wind Profile: Case Study in North Sumatra Manik, Yosef Barita Sar; Siswohartono, Aisyah Bestari; Aulia Rizqi Aufa Rafiqi; Brilian Maulani Putri; Mairuhu, Daffa Renaldhi Chaniago; Sede, Johanes Surya Utama; Nati, Nati
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 16 No. 1 (2025): May
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2025.v16.no1.p70-77

Abstract

The iron and steel industry constitutes one of the strategic pillars of economic development. However, it is also a major contributor to global air pollution due to high-temperature fossil fuel combustion inherent in its processes. This study aims to analyze the wind characteristics surrounding a steel and iron industrial facility in North Sumatra and to predict the areas most at risk from pollutant dispersion. Meteorological data from the NASA POWER Project database, covering the period from 2021 to 2024, were processed to examine local wind profiles across two distinct seasonal periods—rainy and dry. The analysis revealed that during the rainy season, winds predominantly originated from the northwest, with moderate speeds ranging from 2.10 to 3.60 m/s, leading to pollutant dispersion mainly toward the southeast (145°, 40%). Conversely, in the dry season, wind direction was more variable, as indicated by a low resultant vector percentage (11%), suggesting multidirectional pollutant spread. Across both seasons, the majority of wind speeds were below 2.10 m/s, which limits vertical atmospheric mixing and enhances pollutant retention near the surface. Air stagnation, particularly during transitional periods between seasons and under temperature inversion conditions, further intensifies pollutant accumulation. These findings underscore the critical role of seasonal wind dynamics in air pollution behavior and provide a scientific foundation for developing effective mitigation strategies. Practical policy implications include the establishment of buffer zones in downwind residential or agricultural areas, the implementation of stricter emission controls during periods of low wind speed and stagnation, and the integration of local wind data into early warning systems for air quality. Such measures are essential to protect public health, especially in high-density areas surrounding PT X, including Medan City, Deli Serdang Regency, Serdang Bedagai Regency, and Tebing Tinggi City.
Asesmen Teknologi untuk Mesin 3D Printer di Laboratorium Desain Produk dan Inovasi Salsana, Bella; Siboro, Benedikta AH; Manik, Yosef
JST (Jurnal Sains dan Teknologi) Vol. 11 No. 1 (2022)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (428.62 KB) | DOI: 10.23887/jstundiksha.v11i1.38889

Abstract

Mesin 3D printer adalah salah satu dampak kemajuan bidang ekonomi akibat revolusi industri 4.0. Mesian 3D printer adalah metode yang cara kerjanya dengan menumpuk material untuk membuat sebuah objek 3 dimensi. Tujuan penelitian untuk mengidentifikasi perbedaan karakteristik fasilitas mesin 3D printer A dan mesin 3D printer B sebagai fasilitas technoware di Lab. Desprin. Dengan analisis komparasi diperoleh pemetaan jenis mesin 3D printer paling relevan pada setiap mata kuliah yang dilayani lab.desprin. Jenis penelitian ini adalah penelitian eksperimen dengan variabel yang dianalisis adalah Usage Filament, presisi dimensi, waktu produksi, deformasi produk dan kekasaran permukaan. Pengolahan data pada penelitian ini dilakukan dengan uji ANOVA satu arah atau one way ANOVA dengan bantuan software SPSS (Statistical Package for Social Science) version 20.0 for windows dengan tingkat signifikansi 0, 05. Dari hasil analisis ditemukan bahwa perbedaan karakteristik utama terdapat pada variabel waktu produksi, presisi dimensi, dan kekasaran permukaan. Hasil ini digunakan untuk memetakan penggunaan mesin 3D printer kedalam kebutuhan pembelajaran pada semua mata kuliah yang dilayani oleh Lab. Desprin.
Co-Authors Agus, Fadilatur Rahmi Anita Febriany Lumbangaol Anthony Halog Aulia Rizqi Aufa Rafiqi Benedikta Anna Haulian Siboro Bintang Rachel Aprilia Marpaung Brilian Maulani Putri Christine Nababan Daniel Simanjuntak Diharjo, Deniela Flora Mariyne Wongso Dinda Fairuz Nadhifah El Isma Naomi Thorndike Sihombing Elisabeth Pardede Ellen Siagian Elserida Nababan Elvhan Chatisla Cosaken Farhan Saefurrahman Felix Arnes Sitorus Fitri Butarbutar Gabryella Lovia Sihombing Halog, Anthony Huri, Khalila Kireina Indah Debora Salmanita Simanjuntak Indri Purba Inna Stephanie Jayawarsa, A.A. Ketut Jesica Pratiwi Simanjuntak Joshua Partogi Hutauruk Karen Tiara Karlina Gultom Keisha Fawwaaz Lubis, Windy Mairuhu, Daffa Renaldhi Chaniago Marpaung, Bintang Rachel Aprilia Maulidinnisa, Vira Puspita Mayriza, Azka Leona Metiovani Julianti Monalisa Martha Siahaan Nababan, Christine Nababan, Elserida Natalia Paramitha Natasya Pangaribuan Nati Nati, Nati Ni Made Amanda Putri Paramerta Oky Rahayu Pangaribuan, Natasya Paramitha, Natalia Putri, Brilian Maulani Rut Tambun Salsana, Bella Santi Agustina Manalu Santi Panjaitan Saraswati Sintia Widi Sede, Johanes Surya Utama Siagian, Ellen Siboro, Benedikta AH Sikstin Sihombing Simanjuntak, Donda Natalia R. Simanjuntak, Jesica Pratiwi Simbolon, Vismeike Septauli Simorangkir , Desi Sinaga, Hotma Sintong Joshua Siahaan Siswohartono, Aisyah Bestari Situmorang, Eva Daoni Veronika Sri Hanna Siahaan Susi Limbong Tambunan, Yohana Tampubolon, Grace Manzoya Vismeike Septauli Simbolon Windy Lubis Yohana Tambunan