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All Journal RABIT: Jurnal Teknologi dan Sistem Informasi Univrab SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Nusantara Science and Technology Proceedings International Journal of Eco-Innovation in Science and Engineering (IJEISE) Juminten : Jurnal Manajemen Industri dan Teknologi Jurnal Manajemen Jurnal Sains Student Research Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Yekti Condro Winursito
Department Of Industrial Engineering, Faculty Of Engineering, Universitas Pembangunan Nasional Veteran Jawa Timur, Surabaya 60294, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Other

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ANALISIS PENUMPANG KAPAL TITANIC MENGGUNAKAN TITANIC DATASET DENGAN BANTUAN PEMROGRAMAN PYTHON Alfian Fakhri; Yekti Condro Winursito
JOURNAL SAINS STUDENT RESEARCH Vol. 2 No. 1 (2024): Februari: Jurnal Sains Student Research
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jssr.v2i1.759

Abstract

Titanic was a popular luxury passenger ship and sank on April 15, 1912. The Titanic accident was one of the most tragic events. As a result, the Titanic continues to be an object of study, research and discussion by various groups. One of the results of research into the sinking of the Titanic is a sample dataset of Titanic passengers. The primary goal of this research is to uncover insights, patterns, and relationships in the data set to better understand the factors that determined the survival of Titanic passengers. The research method used uses a quantitative approach. The quantitative analysis method focuses more on proving something through mathematical and statistical analysis. Data collection is carried out by taking data from the Titanic dataset. The results of this research are that the majority of passengers are in their twenties, with the highest concentration of passengers being in that age group. Unfortunately, more passengers did not survive the tragedy, with the proportion of male passengers who did not survive being greater than female passengers. There is a clear correlation between ticket class and passenger survival rate.
Analysis of the Level of Saturation and Fatigue in Offline Learning Academic Year 2022-2023 at ABC Elementary School in Surabaya Yekti Condro Winursito; Rusindiyanto; Jeremiah Batista Hutagaol; Moch. Annas Hidayatulloh
Nusantara Science and Technology Proceedings 4th International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3626

Abstract

The effectiveness of the system of public education in a country is one of the most important aspects of its development. The COVID-19 initiative affected the educational system previously. The education system in Indonesia, however, is utilizing the offline or non-network learning approach now that the COVID-19 pandemic conditions, particularly in Indonesia, have abated. The teaching and learning process that takes place in schools exposes pupils to issues that develop in the educational setting and are frequently experienced by students. The frequent occurrence of saturation and exhaustion during school activities is one example. The objective of this final project is to determine the level of saturation and fatigue in offline learning among students at ABC Elementary School and to propose improvements to minimize the levels of saturation and fatigue. The methods used for research are MBI-SS (Maslach Burnout Inventory-Student Survey) for the level of saturation and SOFI (Swedish Occupational Fatigue Inventory) for the level of fatigue. The research results from 75 students show that for the level of saturation, there are 49 students (65%) in the low category, 25 students (34%) in the moderate category, and 1 student (1%) in the high category. For the level of fatigue, there are 56 students (75%) in the moderate category, 19 students (25%) in the moderate category, and 0% in the high category. To saturation and fatigue, the school can engage in ice-breaking activities, inject humor during learning sessions, and provide additional nutrition such as pudding or similar items in the morning.
Machine Maintenance in the Sabroe Line Using Reliability Centered Maintenance (RCM) and Maintenance Value Stream Mapping (MVSM) Methods Isna Nugraha; Joumil Aidil Saifuddin; Yekti Condro Winursito
Nusantara Science and Technology Proceedings 4th International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3630

Abstract

XYZ is a company that operates in the frozen food industry in particular. The company is a producer of high-quality frozen food products for export, so, naturally, other stakeholders in each division of the company need to work together well. Machine maintenance is a key aspect in maintaining the performance and reliability of industrial equipment. To increase machine maintenance efficiency in this factory, a comprehensive and structured approach is needed. Therefore, this research will discuss the machine maintenance strategy implemented in the Sabroe production line. The two methods that will be the main focus of this research are Reliability Centered Maintenance (RCM) and Maintenance Value Stream Mapping (MVSM). The conclusion obtained by examining the highest Risk Priority Number (RPN) for each component in the blanching machine, it can be concluded that the gearbox component has the highest RPN, namely 216, which is the result of multiplying the Severity, Occurrence, and Detection values. During the period of breakdowns and repairs of the blanching machine, the Mean Time to Failure (MTTF) is found to be 242.2538 hours. Meanwhile, the Mean Time to Repair (MTTR) reaches 172.6 minutes or equivalent to 2.8 hours. The gearbox component requires a repair time of 2.8 hours. The inspection interval for the gearbox component is calculated for 302.01 hours, or every 12 days in a month. Efficiency analysis of maintenance using the Maintenance Value Stream Mapping approach indicates that the percentage of maintenance efficiency reaches 73.2%. Activities that add value require a longer time, around 172.6 minutes, while activities that do not add value require about 63.2 minutes.
Mathematics Model Interest and Actual Use of The ABC Digital Wallet Minto Waluo; Mega Cattleya PA Islami; Yekti Condro Winursito; M. Rachman Wayulo; Annisa Marwadelia
Nusantara Science and Technology Proceedings 4th International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3631

Abstract

The emergence of the COVID-19 pandemic had an impact on all business sectors, both goods and services, one of which is the electronic money sector which is related to increasing transaction values. The increase in transactions using non-cash money has resulted in high competition between providers of similar products. Seeing this phenomenon, Dompet Digital XYZ as a digital wallet service provider who is in the second position needs tips to be able to shift Gojek to its competitor who is in the first position. The purpose of this research is to find out how the variables of perceived benefits, ease of use, and security affect the actual interest and use and determine the right strategy for the ABC digital wallet service. Data collection was carried out by distributing questionnaires to 135 respondents aged 18 years who had used the XYZ digital wallet service at least 1 time. Data processing was carried out using the Structural Equation Modeling (SEM) AMOS 26 method. Based on the results of the analysis, the results of the study where the perceived benefit variable has a positive and significant effect on interest in the use, the variable perception of ease of use cannot be proven, and the perceived security variable has a positive and significant effect on interest in the use, and the variable interest in use has a positive and significant effect on actual use. Based on the analysis results obtained, the mathematical model is obtained as follows: Y2 = 0.264 X1 + 0.388 X3.
Supply Chain System Analysis in Single Vendor and Multi Retailer to Reduce Bullwhip Effect Using Vendor Managed Inventory (VMI) Method at Company X Dira Ernawati; Yekti Condro Winursito
Nusantara Science and Technology Proceedings 4th International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2023.3638

Abstract

Company X, one of the largest dolomite fertilizer manufacturers in Indonesia, has recently encountered issues regarding discrepancies in information regarding demand and orders between the company and its eight sales offices. This problem mainly pertains to the Magnesium Fertilizer Magfertil 20+ product in 50 kg packaging. This situation has disrupted the company's supply chain and led to uncertainty in demand, commonly known as the bullwhip effect in the supply chain. The objective of this research is to achieve optimal inventory management to reduce the bullwhip effect among stakeholders in Company X's supply chain. The approach used is the Vendor Managed Inventory (VMI) method. The calculation results demonstrate that the implementation of the Vendor Managed Inventory (VMI) method has been highly successful in reducing the bullwhip effect at various levels within the supply chain. For instance, at the manufacturing level, the initial bullwhip effect value was 1.4503, but after implementing the VMI method, it significantly decreased to 0.4943. Meanwhile, the bullwhip effect I value at each sales office in Office Sales 1, Office Sales 2, Office Sales 3, Office Sales 4, Office Sales 5, Office Sales 6, Office Sales 7, Office Sales 8 is 1.4198, 1.4455, 1.6277, 1.4902, 1.3204, 1, 2093, 1.2994 and 1.4744. However, when applying the proposed VMI method the results of the bullwhip effect decreased drastically until the figures were 0.5007, 0.4773, 0.4909, 0.5097, 0.4975, 0.5015, 0.5014 and 0.4902.
Pelatihan pembuatan sustainable packaging kemasan tepung mangrove untuk meningkatkan green environment pada masyarakat Kebun Raya Mangrove Surabaya Yekti Condro Winursito; Nur Rahmawati; Isna Nugraha; Rayhan Fatur Maulana; Gilang Ramadhan; Friska Aryanti
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 2 (2025): March
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i2.29829

Abstract

AbstrakKegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan kesadaran dan pengetahuan masyarakat tentang pengemasan berkelanjutan melalui pelatihan pembuatan kemasan ramah lingkungan untuk produk tepung mangrove. Program ini dilaksanakan di UPTD Kebun Raya Mangrove Surabaya sebagai bentuk inovasi desain kemasan yang mendukung pelestarian lingkungan. Sosialisasi dilakukan kepada 30 peserta yang terdiri dari masyarakat sekitar dengan didampingi pegawai UPTD. Metode pelaksanaan yang digunakan yaitu sosialisasi yang melibatkan 30 peserta dari mitra UPTD Kebun Raya Mangrove Surabaya. Adapun kegiatan sosialisasi meliputi koordinasi awal, sosialisasi kepada masyarakat, dan evaluasi terhadap kegiatan ini dilakukan melalui pre-test dan post-test untuk mengukur peningkatan pemahaman peserta serta survei kepuasan guna menilai efektivitas metode yang diterapkan. Hasil evaluasi menunjukkan adanya peningkatan pemahaman dan keterampilan peserta setelah mengikuti kegiatan ini, yang diharapkan dapat memberikan dampak positif terhadap pemanfaatan kemasan ramah lingkungan, seperti pengurangan limbah plastik, hilangnya sumber daya, dan peningkatan kesadaran lingkungan. Hasil dari kegiatan ini menunjukkan bahwa desain kemasan ramah lingkungan untuk tepung mangrove dapat menjadi solusi inovatif dalam mendukung lingkungan hijau dan meningkatkan citra produk. Kegiatan ini mendapat apresiasi positif dari UPTD Kebun Raya Mangrove Surabaya, yang berharap inisiatif ini dapat terus berlanjut sehingga dapat diterapkan secara lebih luas untuk mendukung keberlangsungan lingkungan di berbagai sektor. Kata kunci: kemasan berkelanjutan; kemasan ramah lingkungan; lingkungan hijau; tepung bakau. AbstractThis community service activity aims to increase public awareness and knowledge about sustainable packaging through training in making environmentally friendly packaging for mangrove flour products. This program was carried out at UPTD Mangrove Botanical Garden Surabaya as a form of packaging design innovation that supports environmental conservation. The socialization was conducted to 30 participants consisting of the surrounding community accompanied by UPTD employees. The implementation method used was socialization involving 30 participants from UPTD Mangrove Botanical Garden Surabaya partners. The socialization activities include initial coordination, socialization to the community, and evaluation of this activity through pre-test and post-test to measure the increase in participants' understanding and satisfaction survey to assess the effectiveness of the methods applied. The evaluation results showed an increase in participants' understanding and skills after participating in this activity, which is expected to have a positive impact on the utilization of environmentally friendly packaging, such as reducing plastic waste, loss of resources, and increasing environmental awareness. The results of this activity show that environmentally friendly packaging design for mangrove flour can be an innovative solution in supporting a green environment and improving product image. This activity received positive appreciation from UPTD Kebun Raya Mangrove Surabaya, who hopes that this initiative can continue so that it can be applied more broadly to support environmental sustainability in various sectors. Keywords: eco-friendly packaging; green environment; mangrove flour; sustainable packaging.
Analysis of Packaging Machine Effectiveness with Overall Equipment Effectiveness and Six Big Losses : Analisis Efektivitas Mesin Packaging Menggunakan Metode Overall Equipment Effectiveness dan Six Big Losses Acyuta Intan Nurardisa; Yekti Condro Winursito
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 9 No. 1 (2025): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study was conducted at PT XYZ, which is the largest food and beverage manufacturing industry in Indonesia. This company has several machines in the production process, one of which is a packaging machine. This machine is very susceptible to damage, because it is often used in the production process. This study aims to analyze the effectiveness of packaging machines by applying the Overall Equipment Effectiveness (OEE) and Six Big Losses methods. OEE is applied to measure machine performance based on three main aspects, namely availability, performance and quality, while Six Big Losses are used to determine the main factors of efficiency loss. Data were collected through direct observation and production data. The results of the study found that the OEE value of the packaging machine was still below standard with a value of 74.21%, and reduce speed losses of 12.78% as the main cause of efficiency loss. Based on these findings, improvements in machine maintenance, operator training, and improvements to product standards are recommended, in order to increase machine effectiveness.
Implementation of Fault Tree Analysis on Delays in the Production Process of Palm Kernel Shell Conveyor Project at PT Berkah Anugerah Inti Semesta: Terapan Fault Tree Analysis Pada Keterlambatan Proses Produksi Proyek Conveyor Cangkang Sawit pada PT Berkah Anugerah Inti Semesta Alvin Rizky Syahputra; Yekti Condro Winursito
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 9 No. 2 (2025): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

PT Berkah Anugerah Inti Semesta is a company engaged in the fabrication sector. One of its products is a palm shell conveyor. One of the challenges of the production process faced is production delays that can have an impact on operational efficiency and customer satisfaction. This study aims to analyze the causes of delays in the conveyor production process using the fault tree analysis method. The analysis was carried out during the production process in the workshop area. The results of the analysis showed a delay in the processing time, from three weeks to one month. This was due to problems in the fit-up, full weld, visual cleaning, and machining processes. This study produces recommendations based on the results of the analysis which are expected to reduce the level of delays in the production process.
Pelatihan pemberdayaan masyarakat melalui produksi teh daun mangrove sebagai minuman herbal bernilai ekonomi di UPTD Kebun Raya Mangrove Surabaya Nur Rahmawati; Yekti Condro Winursito; Aulia Dewi Fatikasari; Rehan Zufar Ayubi; Isna Nugraha
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 10, No 2 (2026): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v10i2.38874

Abstract

AbstrakKegiatan pengabdian kepada masyarakat ini dilaksanakan di UPTD Kebun Raya Mangrove Surabaya dengan tujuan meningkatkan pemanfaatan daun mangrove sebagai bahan baku teh herbal bernilai ekonomi. Kegiatan dilakukan melalui pelatihan, pendampingan, dan praktik langsung kepada masyarakat pesisir. Materi yang diberikan meliputi teknik pengolahan dan pemasaran digital. Hasil kegiatan menunjukkan peningkatan pengetahuan peserta yang signifikan, ditunjukkan dari peningkatan jawaban “Ya” sebesar 28% pada pre-test menjadi 93% pada post-test. Hal ini menunjukkan bahwa pelatihan efektif dalam meningkatkan pengetahuan dan keterampilan masyarakat. Selain itu, kegiatan ini juga membuka peluang usaha baru serta meningkatkan kesadaran terhadap konservasi lingkungan. Dengan demikian, kegiatan ini berkontribusi dalam penguatan ekonomi lokal dan pelestarian ekosistem mangrove. Kata kunci: daun mangrove; minuman herbal; pengabdian masyarakat; teh mangrove. AbstractThis community service activity was conducted at the Mangrove Botanical Garden UPTD Surabaya to enhance the utilization of mangrove leaves as raw materials for herbal tea with economic value. The activity involved training, mentoring, and hands-on practice for coastal communities, covering processing techniques and digital marketing strategies. The results showed a significant increase in participants’ knowledge, indicated by the rise in “Yes” responses from 28% in the pre-test to 93% in the post-test. This demonstrates that the training was effective in improving knowledge and skills. In addition, the activity created new business opportunities and increased awareness of environmental conservation. Therefore, this activity contributes to strengthening the local economy and supporting sustainable mangrove ecosystem preservation. Keywords: community service; herbal beverage; mangrove leaves; mangrove tea.
ANALYSIS OF POWER PLANT OPERATIONS TO IMPROVE EFFICIENCY USING ENERGY VALUE STREAM MAPPING (EVSM) AND FAILURE MODE AND EFFECTS ANALYSIS (FMEA) METHODS ON COMBINED CYCLE POWER PLANT UNIT AT PT PLN NUSANTARA POWER UP GRESIK : ANALISA PEMBANGKIT LISTRIK GUNA MENINGKATKAN EFISIENSI MENGGUNAKAN METODE ENERGY VALUE STREAM MAPPING (EVSM) DAN FAILURE MODE AND EFFECTS ANALYSIS (FMEA) PADA UNIT PLTGU DI PT PLN NUSANTARA POWER UP GRESIK Siti Arifah Nuraini; Joumil Aidil Saifuddin; Yekti Condro Winursito
Rabit : Jurnal Teknologi dan Sistem Informasi Univrab Vol 10 No 2 (2025): Juli
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/rabit.v10i2.6036

Abstract

To meet human needs, the government builds power plants with adequate capacity and quantity. In the process of electricity generation does not always run well. This study aims to improve the efficiency of the operational process by minimizing the Heat rate value that occurs in the PLTGU unit using the Energy Value Steam Mapping (EVSM) and Failure Mode And Effects Analysis (FMEA) methods. The results of the study showed that the high heat rate in Gas Turbine 1.1 and Steam turbine was caused by fouling in the Compressor Gas Turbine, Corrosion or material damage to the HP Evaporator HRSG, and leakage in the Steam Turbine condenser. The overall heat rate in the block I generating unit before the repair was 1,432.63 kcal/kwh. Then after the proposed repair projection, it was only 830.63 kcal/kwh. This means that there is a decrease in the heat rate in the operational process of 602.01 kcal/kwh or a percentage of 42.02%.
Co-Authors Acyuta Intan Nurardisa Alfian Fakhri Alvin Rizky Syahputra Annisa Marwadelia Aulia Dewi Fatikasari Dira Ernawati Dira Ernawati Dwi Sukma Donoriyanto Erwan Adi Saputro Friska Aryanti Gilang Ramadhan Handoyo Handoyo Iriani Iriani Irma Dian Isna Nugraha Jeremiah Batista Hutagaol Joumil Aidil Saifuddin Joumil Aidil Saifuddin Lutvia Agustin M. Rachman Wayulo Mega Cattleya PA Islami Mega Cattleya Prameswari Anissa Islami Mega Cattleya Prameswari Annissaa Islami Minto Waluo Moch. Annas Hidayatulloh Munirotul Aina Bin Nur Hidayah Nur Rahmawati Rayhan Fatur Maulana Rehan Zufar Ayubi Rizky Setiawan Rizqi Novita Sari Rusindiyanto Sinta Dewi Sinta Dewi Siti Arifah Nuraini Widya Amelia Krisnanda Wira Yudha Nuswantoro