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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.
Co-Authors Dicky Alfiansyah Dicky Susilawati, Susilawati Yuli Setiawannie