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All Journal Jurnal Sains dan Teknologi Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Journal Technology and Industrial Engineering
Nita Marikena
Universitas Potensi Utama
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Transportation Veterinary

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Perencanaan Penjadwalan Preventive Maintenance Mesin Pounch dengan Critical Path Method di PT. Grafika Nusantara Yuli Setiawannie; Nita Marikena
INSOLOGI: Jurnal Sains dan Teknologi Vol. 1 No. 1 (2022): Februari 2022
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.404 KB) | DOI: 10.55123/insologi.v1i1.105

Abstract

Maintenance is one of the main activities in the manufacturing sector that greatly affects the quality and quantity of production, production costs, and customer satisfaction. Thus, it is necessary to plan a preventive maintenance schedule to maintain the condition of the machine so that the production process runs optimally. PT. Grafika Nusantara is a paper management industry company specializing in continuous form, printing, and office stationery, whose production process runs continuously. In the production process, the company often has problems with the punch machine, which is one of the machines in the factory as a printer for paper into envelopes. The problem is due to lack of supervision and maintenance on the punch machine by the company can result in the machine being damaged and the production target not being achieved. The objective of this paper is to plan preventive maintenance scheduling on the punch machine with the Critical Path Method (CPM) and to determine the cost of preventive maintenance for 1 year. The results that can be concluded in this study are that the maintenance scheduling of the punch machine with the CPM method can save maintenance time, which is 30 hours and the cost of preventive maintenance for 1 year is Rp. 1,400,000.
Focus Group Discussion Kualitas Air Danau Toba dalam Penentuan Status Trofik Danau Toba Nita Marikena; Susilawati; Yuli Setiawannie
ABDIKAN: Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Vol. 1 No. 3 (2022): Agustus 2022
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/abdikan.v1i3.814

Abstract

Lake Toba is a tecto-volcanic lake located in the province of North Sumatra, Indonesia. This lake is the largest lake in Indonesia and Southeast Asia (disbudpar, 2019). Lake Toba has ecotourism, namely Leuser National Park and Forest Area with Special Purpose Aek Nauli, Kawasan Strategi Pariwisata Nasional (KSPN)/Kawasan Pengembangan Pariwisata Nasional (KKPN), namely Lake Toba and its surroundings, and Geopark consisting of Toba Caldera Geopark. This is what makes Lake Toba a tourism potential and a direction of development that needs attention. Currently, the Lake Toba Water Quality Standard is set to Class One as contained in the Governor of North Sumatra Regulation Number 1 of 2009 and the trophic status of Lake Toba is Oligotrophic as contained in the Decree of the Governor of North Sumatra Number 188.44/209/KPTS/2017. The determination of the water quality standard of Lake Toba to be Class One as contained in the Governor of North Sumatra Regulation Number 1 of 2009 and the trophic status of Lake Toba is Oligotrophic as contained in the Decree of the Governor of North Sumatra Number 188.44/209/KPTS/2017 currently does not meet. The purpose of this Focus Group Discussion (FGD) is to get input from FGD participants regarding the water quality and trophic status of Lake Toba. The method implemented is in the form of discussion that discusses the quality of water in Lake Toba. Based on the results of the Focus Group Discussion (FGD), the water quality of Lake Toba leads to the Class Two quality standard and the Trophic Status of Lake Toba leads to Mesotrophs. This is influenced by human activities around the Lake Toba area and natural factors. The impact of decreasing water quality of Lake Toba will be increasingly influenced by the determination of Lake Toba as a Kawasan Strategi Pariwisata Nasional super prioritas. The decline in the water quality of Lake Toba can be managed with the cooperation of all parties, namely the community, businessmen and the government, such as the use of technology, environmental conservation, compliance with permits and others.  
Evaluasi Postur Kerja Menggunakan Metode RULA Pada Aktivitas Bongkar Muat di CV. Karyatama Perintis Fajar Dicky Alfiansyah Dicky; Nita Marikena
Journal Technology and Industrial Engineering (JTIE) Vol. 1 No. 2 (2023): Maret: Technology and Industrial Engineering
Publisher : Research Institute of Science, Technology and Art (RISTecArt)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (723.882 KB) | DOI: 10.59840/jtie.v1i2.128

Abstract

Satu di antara proses logistik yang utama adalah kegiatan proses bongkar muat ( manual material handling ), Proses manual material handling pada aktivitas bongkar muat terbagi atas 2 proses yaitu proses bongkar barang dan proses muat barang. Pada penelitian ini difokuskan pada proses bongkar barang sebaliknya. Aktivitas ini rentan terhadap terjadi nya cidera pada pekerja. beresiko pada muskuloskeletal yang biasa disebut dengan musculoskeletal disorders (MSDs) Tujuan penelitian ini untuk mengidentifikasi dan mengevaluasi postur kerja akibat dari aktvitas bongkar barang Metode yang digunakan adalah RULA (Rapid Upper Limb Assessment), menilai postur, gerakan dan gaya pada aktivitas kerja berdasarkan penilaian dari RULA untuk gangguan pada anggota tubuh bagian atas yaitu postur (pergelangan tangan, lengan atas, lengan bawah, perputaran pergelangan tangan, posisi kaki, leher dan punggung) setelah itu menentukan level resiko berdasarkan hasil dari skor akhir bahwa postur tubuh tersebut diperlukan perbaikan atau tidak. Hasil dari perhitungan dengan metode RULA diperoleh bahwa pekerja untuk postur tubuh memiliki nilai 4 pada penilaian skor akhir maka dari itu dalam katagori level resiko 2 yang menunjukan adanya penyelidikan dan perbaikan dibutuhkan. Hal tersebut dipengaruhi oleh postur tubuh yang tidak ergonomis (membungkuk dan menahan beban yang berat ). Kesimpulan dari hasil penelitian ini ialah postur kerja MMH pada CV. Karyatama Perintis Fajar diperlukan adanya penyelidikan dan perbaikan dibutuhkan. Saran yang dapat penulis berikan yaitu mengadakan evaluasi metode dan sistem kerja dan perancangan fasilitas kerja.
Konsultasi Publik Kegiatan Revitalisasi Gedung Cagar Budaya Nita Marikena; Yuli Setiawannie
ABDIKAN: Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/abdikan.v2i1.1647

Abstract

The Wharen Huis Building is a building protected by Law Number 11 of 2010 and the Mayor of Medan Decree Number 433/28.K/X/2021. As a preservation and protection effort that will create an optimal function while protecting or maintaining the authenticity of the Wharen Huis Building as a Cultural Heritage of Medan City, the Government of Medan City through the Housing, Residential Areas and Spatial Planning Office of Medan City plans to revitalize the Wharen Huis Cultural Heritage Building by not violating the applicable theories and regulations related to historic building conservation efforts. The Wharen Huis Heritage Building Revitalization/Restoration Activity Plan consists of 3 (three) stages of activity, namely the pre-construction stage, the construction stage, and the operational stage. Each stage of these activities is predicted to have an impact on the environment. Based on the Regulation of the Minister of State for the Environment No. 4 of 2021, the Revitalization of the Wharen Huis Cultural Heritage Building must have a Type C Environmental Impact Analysis (AMDAL). Referring to Government Regulation Number 22 of 2021, those in charge of businesses and/or activities in preparing an EIA must go through the stages of public consultation. The results of the public consultation obtained input related to building ownership, transportation circulation and support for the preservation of cultural heritage. Public consultation activities obtained several important issues that became input in public consultation activities, including the following 1. Regarding the revitalization of the Wharen Huis Cultural Heritage Building, the Medan City Government should be able to coordinate or communicate with the building owner in terms of managing the building, 2. In its construction, there will be an impact that the circulation of transportation passing through the building must be disturbed, it should be necessary to place parking bags to the west of the building that still exists and 3. we are very enthusiastic and supportive in revitalizing this building as an example for the public interest and become something different in terms of learning historical buildings in Medan City.
Penyusunan Rencana Persediaan dan Perkiraan Kebutuhan Kapasitas Jangka Panjang di PT.X Nita Marikena; Yuli Setiawannie
INSOLOGI: Jurnal Sains dan Teknologi Vol. 2 No. 1 (2023): Februari 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v2i1.1414

Abstract

Production capacity planning is part of operations management that is realistic and applicable, so estimates of production capacity originating from forecasting consumer demand for these products must be known in advance so that companies can use resources effectively, in terms of quantity, time, and costs used for the production process. PT. X is a company that produces products in two groups, namely Product Group-I and Product Group-II. Product Group-I consists of two types of products, namely Product A and Product B, while Product Group-II consists of Product C and Product D. The Company is still experiencing difficulties in meeting consumer demand for these two product groups for the long term. This study aims to determine the total estimated consumer demand for two product groups within one year and the number of production machines needed to optimize the production process. Based on the results of calculations and analysis, the total estimated demand for Product Group-I for 12 months is 2216 units with a production time of 1520 hours. Meanwhile, the total estimated demand for Product Group-II for 12 months is 2,896 units with a production time of 1,709 hours. To meet consumer demand, PT. X must provide 2 units of production machines that are operated in parallel.
Konsultasi Publik Kegiatan Pengembangan Rumah Sakit Nita Marikena; Yuli Setiawannie; Susilawati Susilawati
ABDIKAN: Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Vol. 2 No. 3 (2023): Agustus 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/abdikan.v2i3.2360

Abstract

MM Hospital is one of the General Hospitals located on Jalan Sisingamangaraja, Harjosari I Village, Medan Amplas District, Medan City, North Sumatra Province. This hospital plans to develop its services in the health sector. Referring to Law No. 32 of 2009 concerning Environmental Protection and Management, Law No. 11 of 2020 concerning Job Creation, Government Regulation No. 22 of 2021 concerning the Implementation of Environmental Protection and Management and Regulation of the Minister of Environment and Forestry of the Republic of Indonesia No. 4 of 2021 concerning List of Businesses and/or Activities Required to Have an Environmental Impact Analysis, Environmental Management Efforts and Environmental Monitoring Efforts or a Statement of Undertaking to Manage and Monitor the Environment Appendix I Letter F Health Sector No.12. and Annex II Letter A Multisector with criteria required to have AMDAL, UKL-UPL and SPPL, for building area ≥10,000 m2, AMDAL is required. So that development activities in health services by MM General Hospital, are required to prepare an Environmental Impact Analysis Document (AMDAL) Category C. Based on the results of the public consultation conducted on May 19, 2023, several important issues that became input in public consultation activities, among others, were grouped into the impact of increased vibration, the impact of liquid waste generation, the impact of increased employment and business opportunities, the impact of changes in community income and the impact of changes in community attitudes and perceptions.
Penerapan Sistem Manajemen Keselamatan Dan Kesehatan Kerja (SMK3) Terhadap Tingkat Kecelakaan Kerja Di PT. Sarana Agro Nusantara Bayu Syahputra; Nita Marikena
Journal Technology and Industrial Engineering (JTIE) Vol. 2 No. 1 (2023): September: Technology and Industrial Engineering
Publisher : Research Institute of Science, Technology and Art (RISTecArt)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59840/jtie.v2i1.223

Abstract

Penelitian ini bertujuan untuk mengetahui tingkat risiko kecelakaan kerja dari yang ekstrim sampai yang rendah dengan metode Hazard Identification and Risk Assesment (HIRA) di PT. Sarana Agro Nusantara. Teknik pengumpulan data menggunakan kuesioner penelitian dan ringkasan data perusahaan tahun 2019 sampai 2021 yang didapatkan dari laporan bulanan. Pengambilan sampel dalam penelitian sebanyak 50 karyawan PT. Sarana Agro Nusantara dan menggunakan pendekatan kualitatif. Pengujian tingkat reliabilitas menggunakan Cronbach Alpha dan data diolah dengan Analisis Mantriks Risiko. Analisis data yang digunakan adalah analisis matrik resiko dengan persamaan High = L x C, likehood (L) dan consequences (C). Hasil ini menunjukkan bahwa 7 risiko kecelakaan dengan skala 16 dinyatakan tinggi sehingga perlu dilakukan perbaikan dalam 1 bulan ke depan seperti yang terlihat pada tabel 3.6 tentang indeks prioritas tindakan perbaikan dan 2 risiko kecelakaan lainnya berada pada tingkat sedang (medium) dan 1 risiko berada dalam rendah (low) sehingga prioritas perbaikannya dapat dilakukan dalam 1 tahun ke depan.
Evaluasi Penerapan Program Keselamatan Kerja Dengan Pendekatan Fault Tree Analysis Dalam Menigkatkan Produktivitas Kerja Di PT. XYZ Fernando Situmorang; Nita Marikena
Journal Technology and Industrial Engineering (JTIE) Vol. 2 No. 1 (2023): September: Technology and Industrial Engineering
Publisher : Research Institute of Science, Technology and Art (RISTecArt)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59840/jtie.v2i1.303

Abstract

Penelitian menggunakan metode analisis pohon kesalahan kecelakaan industri di perusahaan dalam tiga tahun terakhir dari 2018 hingga 2020 berdasarkan data jam kerja yang hilang. Pengumpulan data primer dilakukan melalui metode observasi dan pengumpulan data sekunder. Pengumpulan data primer dilakukan dengan metode observasi dan pengumpulan data sekunder. Studi ini mengukur hasil kerja produksi keselamatan dan nilai T keselamatan, dan menyatakan jumlah kecelakaan per 1 juta jam kerja pada periode saat ini dengan tingkat frekuensi. Keparahan menunjukkan jumlah hari yang hilang karena kecelakaan per 1.000.000 jam kerja oleh karyawan. Safety T-Score adalah metrik yang dirancang untuk membandingkan hasil dalam tingkat pengurangan kecelakaan yang dicapai oleh upaya tersebut. Dengan demikian, temuan menandakan bahwa kecelakaan kerja dapat mempengaruhi produktivitas kerja.
Analisis Risiko Keselamatan Dan Kesehatan Kerja Pada Pengoperasian Overhead Crane Dengan Menggunakan Metode Swift Di PT. AMA chairul anwar; Nita Marikena
Journal Technology and Industrial Engineering (JTIE) Vol. 2 No. 1 (2023): September: Technology and Industrial Engineering
Publisher : Research Institute of Science, Technology and Art (RISTecArt)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59840/jtie.v2i1.313

Abstract

Salah satu perusahaan baja milik negara adalah PT AMA yang memproduksi crane dan memiliki kapasitas produksi lebih dari 3 juta ton baja per tahun. Baik jenis crane yang digunakan di PT AMA crane dapat mengangkat dan mengangkut pesawat yang digunakan untuk memindahkan barang atau barang dari satu lokasi ke lokasi lain. Jenis derek jembatan adalah AMA. Karena menimbulkan berbagai potensi bahaya baik dalam operasi pengangkatan rutin maupun tidak rutin, penggunaan derek di atas kepala meningkatkan risiko cedera di tempat kerja ke tingkat yang sangat tinggi. Data kecelakaan yang melibatkan operasional overhead crane PT AMA Dari tahun 2016 hingga 2018,  memiliki 27 kecelakaan, yang menunjukkan tingkat kecelakaan kerja yang tinggi. Memanfaatkan kata kunci what-if, metode SWIFT (Structural What If Analysis) merupakan strategi identifikasi bahaya. Penelitian ini bertujuan untuk mengetahui bahaya dan resiko yang terkait dengan penggunaan overhead crane di PT. AMA dan menyarankan perubahan untuk menurunkan kemungkinan cedera di tempat kerja. Analisis lembar kerja SWIFT (analisis struktural bagaimana jika) mengidentifikasi 18 potensi risiko yang terkait dengan bekerja dengan derek di atas kepala. Berdasarkan perhitungan RRN (risk rating number), risiko dengan prioritas tertinggi adalah 9 dan risiko dengan prioritas terendah sedang. Dua ancaman dengan prioritas rendah dan dua ancaman dengan prioritas tinggi. Kami memberikan saran perbaikan berdasarkan tingkat risiko dengan memberikan prioritas utama pencegahan dan pengurangan kecelakaan kerja selama operasi overhead crane.
Co-Authors Bayu Syahputra chairul anwar Dicky Alfiansyah Dicky Fernando Situmorang Susilawati Susilawati Susilawati, Susilawati Yuli Setiawannie