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All Journal INTENSIF: Jurnal Ilmiah Penelitian dan Penerapan Teknologi Sistem Informasi Jurnal Surya Teknika JISO : Journal of Industrial and Systems Optimization International Journal of Environmental, Sustainability, and Social Science International Journal of Social Service and Research JOURNAL OF HUMANITIES, SOCIAL SCIENCES AND BUSINESS (JHSSB) International Journal Science and Technology (IJST) TRANSPUBLIKA INTERNATIONAL RESEARCH IN EXACT SCIENCES (TIRES) International Journal on Advanced Technology, Engineering, and Information System (IJATEIS) Journal of Social Science Jurnal Spesialis Teknik Sipil (JSpTS) Enrichment: Journal of Multidisciplinary Research and Development Asian Journal of Science, Technology, Engineering, and Art International Journal of Social Science and Community Service Journal of Multidisciplinary Academic and Practice Studies
Sajiyo Sajiyo, Sajiyo
Universitas 17 Agustus 1945 Surabaya
Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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The Empirical Study On Algorithm Optimization In Expert Systems For Diagnosing Rice Plant Diseases Habib, Ahmad; Sunan, Muhamat; Koesdijarto, Roenardi; Sajiyo, Sajiyo; Ronando, Elsen
INTENSIF: Jurnal Ilmiah Penelitian dan Penerapan Teknologi Sistem Informasi Vol 8 No 1 (2024): February 2024
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/intensif.v8i1.20493

Abstract

Rice is one of the most important cultivated plants for human survival. The activity of cultivating rice plants becomes a livelihood for most of these residents, so the success rate of the amount of rice harvested becomes very important because they depend on how much rice can be harvested, disease diagnosis is very important for farmers, this is very important to reduce economic losses due to diseases that cause crop failure. Therefore, when dealing with rice diseases, an expert is needed to make diagnoses or solutions to rice diseases. However, an expert does not know when to come to the village, and farmers also do not understand all rice diseases. Therefore, a web-based expert system application using the forward chaining method is proposed to represent an expert to help farmers diagnose and solve diseases of rice plants with existing symptoms.
ANALYSIS OF FACTORS INHIBITING THE IMPLEMENTATION OF SMK3 IN THE WIDENING PROJECT OF KAPAS – GLENDENG BRIDGE, BOJONEGORO REGENCY Ariyanti, Menik; Oetomo, Wateno; Sajiyo, Sajiyo; Wulandari, Esti
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 2 No. 4 (2023): NOVEMBER
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v2i4.980

Abstract

In construction projects, inadequate implementation of the Occupational Safety and Health Management System (OHSMS) poses risks to the safety and well-being of workers, resulting in decreased performance and compromised project quality. This study focuses on the Kapas-Glendeng bridge widening project in Bojonegoro Regency, identifying key obstacles such as workforce competence, limited experience, insufficient training, and challenges accessing digital information. Additionally, issues related to worker involvement in regulation-making, understanding of Personal Protective Equipment (PPE), reporting procedures, and documentation of work accidents were observed. To address these challenges, the study recommends strategies such as involving untrained workers in competence-building programs, providing apprenticeships for less experienced personnel, implementing comprehensive training information systems, actively engaging workers in project planning, enforcing OHS monitoring systems, ensuring mandatory PPE usage with penalties for violations, and establishing clear procedures for recording and reporting work accidents. This proactive approach aims to enhance OHS implementation and mitigate risks in construction projects.
RISK ANALYSIS OF STEEL BOX GIRDER INSTALLATION USING HIRARC METHOD: (Case Study: Aloha Sidoarjo Flyover Construction Project) Az Zahra, Karunia; Oetomo, Wateno; Sajiyo, Sajiyo
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 3 No. 1 (2024): FEBRUARY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v3i1.985

Abstract

Research on the Aloha flyover construction project aims to determine the risks that occur in the workmanship of installing steel box girder, knowing the level of risk that occurs in the workmanship of installing steel box girder and knowing how to control the risks that occur in the workmanship of installing steel box girder. The method used in this research is the Hazard Identification Risk Assessment and Risk Control (HIRARC) method guided by the Malaysia HIRARC Guidelines (2008). Starting from identifying hazards at each stage of the work activity, a risk assessment is carried out, the results of which can be used as a reference for risk control, so as to reduce the risk of work accidents. The results of the analysis from the identification of hazards and risks arising in 5 stages of work and a total of 11 potential hazard findings were obtained. (1) Preparation stage for steel box girder erection maneuver; (2) The process of leveling/compacting the erection area soil for preparation of crawler crane footing/foundation; (3) The process of mobilizing steel box girder material from stockyard to erection area; (4) Installing slings + seals that will be used during steel box girder erection; (5) The process of installing steel box girder using crawler crane.
INVESTMENT SENSITIVITY AND SERVICE LEVY TARIFF SCHEME: CASE STUDY OF EAST SURABAYA HOSPITAL Astasari, Arianti Widi; Oetomo, Wateno; Sajiyo, Sajiyo
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 3 No. 3 (2024): AUGUST
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v3i3.1172

Abstract

As one of the largest cities in Indonesia, the City of Surabaya has an obligation to provide excellent health services for its residents. Consequently, the Surabaya City Government is required to provide a general hospital that can receive referrals from the government-owned Community Health Centers. To fulfill this obligation, the Surabaya City Government built the East Surabaya Hospital, located in the Rungkut Sub-District. East Surabaya Hospital is a strategic project that necessitates an investment feasibility analysis. This analysis was conducted using the Net Present Value (NPV), Internal Rate of Return (IRR), Payback Period (PP), and Benefit-Cost Ratio (BCR) parameters. Following the feasibility analysis, a sensitivity analysis was performed to examine changes in management costs and the health service levy rates for each tariff alternative. Based on the investment feasibility analysis of four tariff alternatives, two alternatives—alternative 1 and alternative 3—were deemed worthy investments. In contrast, alternatives 2 and 4 were found to be unfeasible, as the NPV parameter showed negative values and the IRR value was lower than the Minimum Acceptable Rate of Return (MARR). However, the sensitivity analysis indicated that alternatives 2 and 4 could become feasible if alternative 2’s management cost is reduced by 14.4% and alternative 4’s management cost is reduced by 2.8%. Conversely, alternative 1 might become unfeasible if the management cost increases by 7%, and alternative 3 might become unfeasible if the management cost increases by 3.1%.
ANALYSIS OF MAINTENANCE COSTS AND PUBLIC SATISFACTION LEVELS TOWARD SOOKO GREEN OPEN SPACE DEVELOPMENT Putera, Rendra Pramana; Oetomo, Wateno; Sajiyo, Sajiyo
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 3 No. 4 (2024): NOVEMBER
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v3i4.1180

Abstract

Electronic media information obtained by the author states that the Mojokerto Regent ordered the Mojokerto District Environment Office to create a Green Open Space that is planned to be built in each sub-district. In 2022, the Mojokerto District Environment Office planned the Sooko Green Open Space by making a DED and continued to carry out its construction and ended at the end of 2023. The research method used is using the method: Net Present Value (NPV) to determine the value of profit or loss, Benefit Cost Ratio (BCR) to determine the comparison of the value of profit and loss, Payback Period (PbP) to determine how long it takes to return the capital that has been spent, and Likert scale calculations to determine how much the level of community satisfaction on the existence of Sooko Green Open Space. The results showed that the Sooko green space development investment is feasible. This can be seen from the NPV> 0 value of Rp 3,213,731,030, the IRR value exceeds the expected interest rate of 22.7%, the Payback Period of returning the investment value of slum housing improvement development occurs in the 4th year 6 months, precisely in 2028. The amount of maintenance costs for the development of Sooko with all facilities and infrastructure is Rp315,291,605, - every year. Based on Excel calculations of the level of community satisfaction from questionnaires that have been obtained, the average value is 90% so that it meets the criteria of Very Satisfied with a standard deviation of 49%.
TIME ACCELERATION ANALYSIS USING THE TIME COST TRADE OFF METHOD ON THE WHEAT SILO AND PELLET SILO STRUCTURE REPAIR PROJECT PHASE III IN SURABAYA Klau, Maria Junita; Sajiyo, Sajiyo; Tjendani, Hanie Teki
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 3 No. 3 (2024): AUGUST
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v3i3.1254

Abstract

The wheat silo and pellet silo structural repair project Phase III in Surabaya holds great significance for the wheat flour processing industry in Indonesia. PT Indofood Sukses Makmur Tbk Bogasari Surabaya Division, as one of the leading wheat flour producers, required structural repairs on both silos to ensure the smooth operation of the plant and the quality of the final product. Given the importance of time and cost in the success of this project, an effective approach to time and cost management was essential. The project necessitates proper project management to avoid delays and cost overruns, with a budget of IDR 28,011,000,000 and an estimated duration of 455 calendar days. This research employs the Time Cost Trade Off (TCTO) method to analyze options for accelerating project time by considering additional costs that may arise. Microsoft Project software is utilized to identify the critical path, allowing project managers to focus on activities with the greatest impact on the overall schedule. The results indicate that the critical path of the project includes activities such as mobilization and demobilization, administration and reporting, work safety, and repair of the old grain silo. By using TCTO, the project completion time can be accelerated to 359 days from 455 days, reducing the duration by 21.10%.
ANALISA DAMPAK KECELAKAAN KERJA TERHADAP KERUGIAN FINANSIAL PERUSAHAAN Arasid, Afrizal Yusuf; Sajiyo, Sajiyo
JISO : Journal of Industrial and Systems Optimization Vol. 5 No. 1 (2022): Juni 2022
Publisher : Universitas Maarif Hasyim Latif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51804/jiso.v5i1.18-25

Abstract

Penelitian analisa dampak kecelakaan kerja ini bertujuan untuk mengetahui jenis kecelakaan kerja  serta dampak kerugian finansial yang dialami PT.X pada  tahun 2017 sampai dengan tahun 2019.Data diperoleh dengan menggunakan metode wawancara selanjutnya diolah menggunakan rumus analisa perhitungan Tingkat frekuensi kecelakaan kerja(Frequency Rate), Tingkat keparahan (Safety Rate), Tingkat kecenderungan (Safety T Score), analisa kerugian Real dan kerugian potensial. Diketahui Frequency Rate pada periode 2017 berjumlah 55,88 kali kecelakaan pada periode 2018 mengalami penurunan sebanyak 55,65 kali kecelakaan sedangkan pada tahun 2019 mengalami kenaikan sebesar 78,10 kali kecelakaan setiap sejuta jam kerja. Dari hasil Safety rate  periode 2017 berjumlah 8673 jam kerja hilang, pada periode 2018 mengalami penurunan sebesar 4541 jam kerja hilang, sedangkan pada periode 2019 mengalami kenaikan sebesar 6828 jam kerja hilang setiap sejuta jam kerja. Dari hasil analisa perhitungan Safe T Score di peroleh hasil 0,39 yang mempunyai arti pada periode 2017 ke periode 2019 cenderung tidak menunjukkan suatu perubahan, bahwa pada periode 2017 sampai dengan periode 2019 keadaan kecelakaan pada PT.X hampir sama pada tahun-tahun sebelumnya. Setelah melakukan perhitungan kerugian diketahui total kerugian yang di alami oleh PT.X adalah sebanyak Rp.2.283.186.697 ABSTRACTThis work accident impact analysis study aims to determine the type of work accident and the impact of financial losses experienced by PT.X in 2017 to 2019. The data obtained using the interview method is then processed using the calculation formula for the frequency rate of work accidents (Frequency Rate), Severity (Safety Rate), Tendency (Safety T Score), analysis of real losses and potential losses. It is known that the Frequency Rate in the 2017 period amounted to 55.88 accidents, in the 2018 period there was a decrease of 55.65 accidents while in 2019 there was an increase of 78.10 accidents for every million working hours. lost work, in the 2018 period there was a decrease of 4541 lost work hours, while in the 2019 period there was an increase of 6828 lost work hours for every million working hours. From the results of the analysis of the Safe T Score calculation, the results are 0.39, which means that in the 2017 to 2019 period, it tends not to show a change, that in the 2017 to 2019 period, the accident situation at PT.X was almost the same in previous years. After calculating the loss, it is known that the total loss experienced by PT. X is Rp. 2,283,186,697 
ANALISA PENERAPAN SISTEM MANAJEMEN KESELAMATAN DAN KESEHATAN KERJA MENGGUNAKAN METODE HIRARC DI PT. AGR UNIT ARF Kanugrahan, Tri Rizki; Puspita, Asri Dwi; Sajiyo, Sajiyo
JISO : Journal of Industrial and Systems Optimization Vol. 5 No. 2 (2022): Desember 2022
Publisher : Universitas Maarif Hasyim Latif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51804/jiso.v5i2.106-112

Abstract

ABSTRAK Penerapan Sistem Manajemen Keselamatan dan kesehatan Kerja (SMK3) di PT. AGR Unit ARF sudah cukup baik, dengan diterapkannya standar Alat Pelindung Diri (APD) untuk setiap lokasi kerja, setiap beberapa bulan juga dilakukan pengecekan kondisi lingkungan dan dilakukan efaluasi terkait ketidak sesuaian yang terjadi. Menurut data kecelakaan kerja PT. AGR Unit ARF pada tahun 2016 sampai dengan tahun 2021 tercatat sudah terjadi 15 kecelakaan kerja, mulai dari kecelakaan kerja ringan seperti tersayat pisau sampai dengan kecelakaan fatal yang menyebabkan cacat permanen, Hal ini membuktikan bahwa sistem manajemen K3 yang ada belum mencapai zero accident. untuk itu penelitian ini bertujuan melakukan pengamatan dan analisis terhadap penerapan komitmen penerapan sistem manajemen keselamatan dan kesehatan kerja pada PT. AGR unit ARF. Metode yang akan digunakan dalam penelitian ini adalah metode HIRARC untuk mengidentifikasi resiko pada lingkungan kerja di PT. AGR unit ARF yang dapat merugikan manusia, lingkungan, dan sistem yang ada. Hasil dari penelitian ini adalah terdapat 36 risiko kerja yang ada pada area produksi PT. AGR unit ARF dengan 4 kategori risk rating, yaitu Extreme risk, Hight risk , Medium risk , Low risk. Terdapat 1 proses pekerjaan yang dikategorikan sebagai Extreme risk, 5 proses pada kategori Higt Risk, 12 risiko pada Medium risk, dan 18 risiko pada Low risk. Sedangkan pengendalian risikonya menggunakan metode Hirarki (Hierarchy of control), yaitu dengan melakukan eliminasi, subtitusi, administrasi, training, dan penambahan APD (Alat Pelindung Diri).ABSTRACTImplementation of Occupational Safety and Health Management System (SMK3) at PT. AGR The ARF unit is quite good, with the implementation of the standard Personal Protective Equipment (PPE) for each work location, every few months environmental conditions are also checked and an evaluation is carried out regarding any discrepancies that occur. According to work accident data, PT. AGR Unit ARF in 2016 to 2021 recorded 15 work accidents, ranging from minor work accidents such as knife cuts to fatal accidents that cause permanent disability, this proves that the existing K3 management system has not reached zero accident. For this reason, this study aims to observe and analyze the implementation of the commitment to the implementation of an occupational health and safety management system at PT. AGR of ARF units. The method that will be used in this research is the HIRARC method to identify risks in the work environment at PT. AGR ARF units that can harm humans, the environment, and existing systems. The results of this study are there are 36 work risks that exist in the production area of PT. AGR unit ARF with 4 risk rating categories, namely Extreme risk, High risk, Medium risk, Low risk. There is 1 work process which is categorized as Extreme risk, 5 processes in the High risk category, 12 risks in Medium risk, and 18 risks in Low risk. While the risk control uses the Hierarchy of control method, namely by eliminating, substitution, administration, training, and adding PPE (Personal Protective Equipment).
PENENTUAN BAHAN BAKU MENGGUNAKAN METODE FUZZY GOAL PROGRAMMING PADA UKM FURNITURE Purnama, Jaka; Putri, Erni Puspanantasari; Sajiyo, Sajiyo; Aulia, Dian Rahma; Pratama, Novi Ariyan
JISO : Journal of Industrial and Systems Optimization Vol. 7 No. 1 (2024): Juni 2024
Publisher : Universitas Maarif Hasyim Latif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51804/jiso.v7i1.1-7

Abstract

Jombang Regency is one of the furniture producers which supplies many cities in Indonesia. Production activities are carried out at the furniture SMEs center in Catak Gayam village, Mojowarno, Jombang. Furniture SMEs strive to serve consumer needs according to demand. SMEs prepare teak wood raw materials by ordering wood from suppliers. It is difficult for furniture SMEs to determine the number of teak wood orders that match consumer product demand. The Fuzzy Goal Programming method is able to provide solutions for determining of raw materials according to consumer needs. The results of this research formed a model that was used to determine the amount of teak wood raw material according to demand of 25.03 m3 per order. Furniture SMEs set a profit target of 0.25. This condition shows the most optimal conditions in production activities at SMEs Furniture. Kabupaten Jombang merupakan salah satu penghasil furniture yang banyak menyuplai di kota-kota berada di Indonesia. Kegiatan produksi dilakukan di sentral UKM furniture di desa Catak Gayam, Mojowarno, Jombang. UKM furniture berupaya dalam melayani kebutuhan konsumen sesuai dengan permintaan. UKM menyiapkan bahan baku kayu jati dengan cara memesan kayu ke supplier. Sulitnya UKM furniture dalam menentukan pesanan kayu jati yang sesuai dengan permintaan produk yang dibutuhkan konsumen. Metode Fuzzy Goal Programming mampu memberikan solusi penentuan jumlah bahan baku sesuai dengan kebutuhan konsumen. Hasil penelitian ini terbentuk suatu model yang digunakan untuk menentukan jumlah bahan baku kayu jati sesuai dengan permintaan sebesar 25,03 m3 setiap kali order. UKM furniture memberikan target keuntungan sebesar 0,25. Kondisi ini menunjukan kondisi yang paling optimal dalam kegiatan produksi pada UKM Furniture.
RISK ANALYSIS WITH THE HIRARC METHOD ON INSTALLATION STEEL BOX GIDER CONSTRUCTION OF ALOHA FLYOVER SIDOARJO Zahra, Karunia Az; Wateno Oetomo; Sajiyo, Sajiyo
International Journal Science and Technology Vol. 3 No. 1 (2024): March: International Journal Science and Technology
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/ijst.v3i1.1194

Abstract

Research on the Aloha flyover construction project aims to determine the risks that occur in the workmanship of installing steel box girder, knowing the level of risk that occurs in the workmanship of installing steel box girder and knowing how to control the risks that occur in the workmanship of installing steel box girder. The method used in this research is the Hazard Identification Risk Assessment and Risk Control (HIRARC) method guided by the Malaysia HIRARC Guidelines (2008). Starting from identifying hazards at each stage of the work activity, a risk assessment is carried out, the results of which can be used as a reference for risk control, to reduce the risk of work accidents. The results of the analysis from the identification of hazards and risks arising in 5 stages of work and a total of 11 potential hazard findings were obtained. (1) Preparation stage for steel box girder erection maneuver; (2) The process of leveling/compacting the erection area soil for preparation of crawler crane footing/foundation; (3) The process of mobilizing steel box girder material from stockyard to erection area; (4) Installing slings + seals that will be used during steel box girder erection; (5) The process of installing steel box girder using crawler crane. The risk assessment results obtained a total of 11 potential hazard findings with details of 5 potential hazards with a percentage of risk value of 45.54% which is at a high level and 6 potential hazards with a percentage of risk value of 54.55% at a moderate level. The total number of risk level values is 132, with an average value of 12, meaning that the installation of steel box girder is at a moderate level. The results of risk control recommendations after obtaining the risk level value and analyzing the risk value, obtained 6 types of risk control in accordance with the risk control hierarchy, namely elimination, substitution, engineering control, warning system, administrative control, and personal protective equipment (PPE).
Co-Authors Abdillah, Pradana Affan Abid, Luthfil Adi Kurniawan Aditya, febri Arasid, Afrizal Yusuf Ariyanti, Menik Astasari, Arianti Widi Aulia, Dian Rahma Az Zahra, Karunia Budi Witjaksana, Budi Chablullah Wibisono Djatmiko, Mochammad Elsen Ronando Erni Puspanantasari Putri, Erni Puspanantasari Esti Wulandari Fachril Aliffiansyah Farchan, Muchamad Habib, Ahmad Hanie Teki Tjendani, Hanie Teki Istantyo Yuwono, Istantyo Kanugrahan, Tri Rizki Klau, Maria Junita Koesdijarto, Roenardi Kurnia, Alfadhil Surya Laksono Djoko Nugroho Oetomo, Wateno Patriadi, Andi Perdana, Dicky Rianda Pratama, Novi Ariyan PUJIASTUTI, Fitria Lestari Puspita, Asri Dwi Putera, Rendra Pramana Putranto, Yonandika Pandu Putri, Helsa Ade Ayu Kumala RR. Ella Evrita Hestiandari Rumihin, Paschal Sanjaya, Robi Seki, Thomas Aquino Sunan, Muhamat Surawan, Surawan Wahyu, Lestyanto Wateno Oetomo Zahra, Karunia Az Zuhri, Fuad Jauhar