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All Journal Jurnal Ergonomi Indonesia (The Indonesian Journal of Ergonomic) Rekayasa Mesin SITEKIN: Jurnal Sains, Teknologi dan Industri OPERATION EXCELLENCE: Journal of Applied Industrial Engineering R.E.M (Rekyasa Energi Manufaktur) Jurnal International Journal of Artificial Intelligence Research Jurnal EMT KITA Conference on Innovation and Application of Science and Technology (CIASTECH) Jurnal Teknik Mesin Buana Ilmu Vocatech : Vocational Education and Technology Journal Journal of Environmental Science and Sustainable Development Industry Xplore Journal of Sustainable Tourism and Entrepreneurship Dinasti International Journal of Economics, Finance & Accounting (DIJEFA) Jurnal Cahaya Mandalika Jurnal Serambi Abdimas Malikussaleh Journal of Mechanical Science Technology Bussman Journal : Indonesian Journal of Business and Management Jurnal Teknik Mesin Mechanical Xplore Teknologika Journal of Mechanical Engineering, Science, and Innovation Creative Research in Engineering (CERIE) Jurnal Teknik Mesin Sinergi Jurnal Buana Pengabdian Public Health and Safety International Journal (PHASIJ) Engineering and Technology International Journal (EATIJ) Media Bina Ilmiah Journal of Artificial Intelligence and Digital Business Jurnal Multidisiplin West Science The Eastasouth Management and Business Jurnal Psikologi dan Konseling West Science Jurnal Inovasi Pendidikan dan Teknologi Informasi (JIPTI) West Science Business and Management West Science Interdisciplinary Studies Journal of Social Science and Business Studies West Science Interdisciplinary Studies West Science Social and Humanities Studies Jurnal Pengabdian Masyarakat dan Riset Pendidikan West Science Nature and Technology Jurnal Ar Ro'is Mandalika (Armada) Jurnal Polimesin Masyarakat Mandiri: Jurnal Pengabdian Dan Pembangunan Lokal JCRIM (Journal of Current Research In Multidisciplinary)
Suhara, Ade
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The Effect of Transformational Leadership, Work Environment, and Life-Work Balance on Employee Job Satisfaction in the Manufacturing Industry in Surabaya Region Suhara, Ade; Mayasari, Nanny; Dinarwati , Sri; Suhendra, Agus; Talindong, Agustinus
West Science Business and Management Vol. 2 No. 02 (2024): West Science Business and Management
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsbm.v2i02.1036

Abstract

This study investigates the influence of transformational leadership, work environment, and work-life balance on employee job satisfaction within the manufacturing industry in the Surabaya region. A quantitative research design employing Structural Equation Modeling (SEM) with Partial Least Squares (PLS) analysis was utilized to analyze data collected from 160 employees across various manufacturing sectors. The findings reveal significant positive relationships between transformational leadership, work environment, work-life balance, and employee job satisfaction. Transformational leadership emerged as a key predictor of employee job satisfaction, emphasizing the importance of visionary leadership in fostering a positive work culture. Additionally, a supportive work environment and satisfactory work-life balance were found to significantly impact employee satisfaction. These findings underscore the interconnectedness of organizational factors in shaping employee perceptions and experiences within the manufacturing industry. The study contributes to both theoretical understanding and practical implications for organizational management and human resource practices, providing insights for enhancing employee satisfaction and organizational success in the Surabaya manufacturing context.
Dynamics of Conflict Management Research in the Public and Private Sectors: A Bibliometric Analysis Mayasari, Nanny; Suhara, Ade; Dinarwati, Sri; Chakim, Mochamad Heru Riza; Talindong, Agustinus
West Science Business and Management Vol. 2 No. 02 (2024): West Science Business and Management
Publisher : Westscience Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/wsbm.v2i02.1037

Abstract

This bibliometric analysis explores the evolving landscape of conflict management research across various dimensions, including thematic clusters, research trends, emerging opportunities, and author collaborations. Utilizing VOSviewer for visual mapping, the study identifies key themes such as leadership styles, resolution processes, and personal traits like gender and professional roles that dominate the discourse. A longitudinal analysis from 2002 to 2010 highlights a pivotal shift from foundational conflict management concepts towards addressing broader societal impacts and understanding the economic ramifications of conflict. Opportunities for future research were pinpointed in underexplored areas such as ethnic conflicts, the costs associated with conflict, and the roles of power in achieving peace. The author collaboration network, though sparse, reveals central figures that could drive further interdisciplinary studies. This study not only maps the current state of conflict management research but also sets the stage for future explorations that could bridge theoretical gaps and enhance practical applications.
Ethanol additive addition to gasoline: viscosity investigation using stokes law linear regression Taufik Ulhakim, Muhamad; Karina Chintya, Lestari; Suhara, Ade; Bertolomeus Haryanto, Agung; Ummah, Auliya Rahmatul; Nur, Arip Syaripudin
Jurnal Teknik Mesin Mechanical Xplore Vol. 4 No. 1 (2023): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v4i1.5612

Abstract

Nowadays, global warming is a tremendous phenomena in the world. Every country trying to solve these conditions, including Indonesia that has a campaign to reduce the emission of CO and HC from vehicles. However, the number of vehicles is increasing every year. Based on that condition, the researchers are trying to modify the fuel with the additive. This work modified the gasoline with 10% ethanol additive addition and investigated the viscosity properties using Stokes law linear regression method and compared to pure gasoline. The viscosity properties are chosen by their effect on emission of vehicles. A low viscosity of fuel can reduce CO and HC in gas emission. Then, this work was finding that the viscosity of gasoline is decreased, but 10% of ethanol does not significantly change the characteristics of gasoline. Even so, the linear regression has successfully used as an analyzed method to determined the viscosity. Then, this finding also contributes to development of fuel in Indonesia to reduce the emission of CO and HC with the modified of gasoline using ethanol in the other concentration.
A Comprehensive Study on Production Efficiency Enhancement Using Optimal Power Press Tonnage in Stamping Sukarman; Taufik Ulhakim, Muhamad; Khoirudin, Khoirudin; Mulyadi, Dodi; Amir, Amir; Suhara, Ade; Rahdiana, Nana
Jurnal Teknik Mesin Mechanical Xplore Vol. 5 No. 2 (2024): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v5i2.8048

Abstract

The use of press machines in stamping is an important aspect of the manufacturing industry, especially in producing efficient and quality components. This article aims to analyze the cost of the stamping process using mild steel SPCC-SD material measuring 200 mm x 25 mm x 0.8 mm, using two types of press machines, namely 80 tons and 40 tons. Through the cost analysis method, the total cost of the stamping process for the 80-ton press machine is Rp 16,417.4 per 10 pcs, while for the 40-ton press machine, it is Rp 15,028.5, indicating the cost efficiency of the 40-ton press machine is around 8.5%. The tonnage calculation shows that the 40-ton press machine is adequate for the blanking process, with a tonnage requirement of 4 tons, far below the available capacity. These results provide recommendations for the use of 40-ton press machines in the production of steel components on a small to medium scale, considering cost efficiency and optimal performance. This work is expected to increase productivity and cost efficiency in the manufacturing industry, especially at PT GA.
Unraveling the Potential of Coconut Shell Activated Carbon for Catalytic Converter Application: A Preliminary Studies of its Optimization through the Assisted of Fuzzy Logic Taufik Ulhakim, Muhamad; Marbun, Diansyah; Sukarman, Sukarman; Supriyanto, Agus; Suhara, Ade; Ummah, Auliya Rahmatul; Lidiawati, Neng Astri
Jurnal Teknik Mesin Mechanical Xplore Vol. 5 No. 2 (2024): Jurnal Teknik Mesin Mechanical Xplore (JTMMX)
Publisher : Mechanical Engineering Department Universitas Buana Perjuangan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36805/jtmmx.v5i2.9013

Abstract

Nowadays, researchers focus on developing catalytic converters based on activated carbon (AC) from organic waste to address environmental concerns. This study presents a preliminary investigation into the application of catalytic converters through the synthesis of AC from coconut shells, with optimization achieved through the implementation of fuzzy logic to ascertain the optimal properties of the AC, specifically the activation temperature. The fuzzy logic approach has determined that the optimal activation temperature is 950 °C. The effectiveness of this approach is substantiated by the successful synthesis of AC, as evidenced by XRD, FTIR, and SEM-EDX analysis. The findings indicate that fuzzy logic provides the most accurate activation temperature information, significantly impacting the AC structure. The resulting yield and bulk density values were 26.29% and 0.519 g/ml, respectively. Proximate analysis indicates that the ash content (4.332%), moisture (7.211%), and volatile matter (16.321%) achieve an FCC of 72.136%. The iodine number is a crucial parameter in evaluating the potential application of AC for the catalytic converter. The results demonstrated that the adsorption performance is achieved in 613 mg/g. In conclusion, the AC produced shows considerable potential for use as a catalytic converter. This assertion is substantiated by the successful evaluation of its efficacy in reducing CO and HC, respectively, by approximately 86.04% and 56.79%. To confirm the suitability of the catalytic converter for the vehicle. A series of dynamometer tests were conducted to verify the catalytic converter's performance. The ensuing test results exhibited a decline in torque and power values, yet these measurements remained within acceptable parameters for typical daily utilization.
OPTIMIZATIONS THE TENSILE-SHEAR STRENGTH OF TIG WELDING PARAMETERS FOR MILD STEEL AT DIFFERENT MATERIAL THICKNESSES Dwicahyo, Tegar; Basit, Arul; Amar, Amar; Sukarman, Sukarman; Khoirudin, Khoirudin; Suhara, Ade
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1486

Abstract

This article presents a study on optimizing Tungsten Inert Gas (TIG) welding on mild steel (SPCC-SD/JIS G3141) with varying thicknesses of 0.6 mm and 0.8 mm. Automobile bodies commonly utilize mild steel with a material thickness ranging from 0.6 to 0.98 mm. The objective of this study was to ascertain the upper limit of tensile-shear strength that can be achieved by utilizing the specific parameters utilized in TIG welding. This study utilizes a three-level experiment and incorporates three input variables in the Taguchi experimental optimization method. The advantage of this approach lies in its ability to yield comprehensive outcomes while minimizing expenses, as it can be adapted to the resources available. An additional benefit is that this approach can be implemented in a multitude of industrial situations.The study's input variables are welding current, argon gas flow rate, and electrode diameter. Utilizing a continuous flow of argon gas of 12 LPM (liter per minute), a welding current of 55 A, and an electrode diameter of 1.6 mm, the maximum mean T-S strength of 3457.13 N was achieved. The ANOVA revealed that the flow rate, welding current, and electrode diameter had a per cent contribution of 50.07%, 26.89%, and 23.04%. The flow rate was the parameter with the most significant impact on the influential variable. The welding current and the electrode diameter do not significantly affect the response. The findings indicate that by adjusting the parameters to the optimal level determined by the Taguchi method, the S-N ratio for T-S strength increases by 9.30%, and T-S strength increases by 12.42%. The findings of this study offer a thorough comprehension of enhancing the TIG welding approach and can be further refined by incorporating additional variables.
Enhancing TIG Welding Parameters For Direct Tensile Load (DT-load) On Various Steel Thicknesses Amar, Amar; Sukarman, Sukarman; Khoirudin, Khoirudin; Mulyadi, Dodi; Basit, Arul; Suhara, Ade; Shieddieque, Apang Djafar; Cahyo, Tegar Dwi
Jurnal Polimesin Vol 22, No 1 (2024): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i1.4892

Abstract

The car body repair process is integral to vehicle development and structural repair. The primary objective of this study is to enhance the quality of thin material welding utilized in automobile body repair. The impetus for this research stems from the necessity to improve the structural integrity and longevity of thin materials prone to deformation throughout the welding procedure while minimizing distortion. This study aims to identify optimal parameters for the tungsten inert gas welding (TIG welding) process on thin materials, particularly for automobile body rearrangement. The Taguchi method conducted the experimental analysis of variations in welding parameters, including electrode diameter, gas flow rate, and welding current. Adjusting TIG welding parameters to their optimal values significantly improves weld joint direct tensile load (DT-load) and overall structural quality, according to the findings of this study. ANOVA analysis and the S-N ratio indicate that gas flow rate and welding current are significant determinants of the quality of welded joints in thin materials. This research contributes to a better understanding of the optimal parameters for fusing thin materials, particularly in automobile body repair. The automotive industry can use these findings as a guide to enhance the quality and strength of welding processes, which are critical to the structural integrity of vehicles.
Implementation of a pid controller in a dc motor system: a case study on a floor cleaning robot Nanda, Rizki Aulia; Karyadi, Karyadi; Suhara, Ade; Tukino, Tukino; Guntur, Muhamad
Jurnal Polimesin Vol 23, No 1 (2025): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i1.5543

Abstract

A floor-cleaning robot requires a stable and consistent movement to ensure effective cleaning. This study implements a Proportional-Integral-Derivative (PID) control system using Arduino Uno to regulate the DC motor’s speed and rotation. A well-tuned PID system ensures smooth and constant motion, optimizing the cleaning process. Without PID control, the robot’s movement can become inconsistent, reducing its cleaning efficiency. The research focuses on designing and implementing a PID system to achieve constant speed and rotation through programming. The selected PID parameters are Kp = 0.2, Ki = 50, and Kd = 0, effectively making it a Proportional-Integral (PI) controller. Experiments were conducted under two conditions: (1) unloaded motor testing—where the motor’s rotational stability was assessed without external load, and (2) loaded robot operation—where the robot was tested while cleaning a dirty floor. Results showed that the DC motor's unloaded speed was initially 5 RPM, stabilizing at 10.62 RPM. Under load, the robot's speed started at 0.2 RPM, peaked at 6.85 RPM, and maintained an average velocity of 4.85 cm/s. The robot demonstrated consistent motion in forward, left-turn, and right-turn maneuvers, achieving 13-degree rotations in 30 seconds. The robot was able to operate for 30 minutes, maintaining a stable speed between the 3rd and 22nd minute, before declining as battery power depleted. The findings confirm that the implementation of a PI controller effectively stabilizes motor rotation and enhances floor-cleaning efficiency. Additionally, this control method can be adapted to larger-scale robots and various DC/AC motor systems.
Performance Enhancement of Motorcycle Engines Using Lemongrass Oil-Based Fuel Additive Budi, Pangga Urip Setio; Suhara, Ade; Supriyanto, Agus; Patya, Dhea Intan; Khoirudin, Khoirudin; Nanda, Rizki Aulia
Journal of Mechanical Engineering, Science, and Innovation Vol 5, No 2 (2025): (October)
Publisher : Mechanical Engineering Department - Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jmesi.2025.v5i2.7778

Abstract

The increasing number of motor vehicles has led to higher fuel consumption, especially among two-wheeled vehicles, contributing to elevated emissions of hydrocarbon (HC) and carbon monoxide (CO). This study investigates the potential of lemongrass oil (LO) as natural additive to reduce exhaust emissions from RON 92 fuel. The LO was extracted via maceration and characterized by its physical properties, including density (0.893 g/mL), viscosity (5.30 mPa.s), and boiling point (222 °C), consistent with pure LO standards. The additive as then blended into RON 92 fuel in concentration of 10 mL, 15 mL, and 20 mL per 1000 mL of fuel to determine its optimal performance. Results showed that a 20 mL addition yielded the highest reduction in HC and CO emissions, respectively 49.76% and 46.24%. Furthermore, engine performance improved, with power increasing by 0.27 HP and torque by 0.21 Nm within an engine speed range of 5200-5700 rpm. These outcomes suggest that LO enhances combustion efficiency and reduces emissions. The findings highlight the potential of LO as an environmentally friendly fuel additive and supprt ongoing efforts to develop sustainable alternatives to conventional fossil fuels in Indonesia.
The Influence of Organizational Communication, Participative Leadership, and Work Motivation on Employee Creativity: Case Study in the Creative Industries in Bali Mayasari, Nanny; Suhara, Ade; Marlita, Devi; Widowati, Retno; Damiyana , Damdam
The Eastasouth Management and Business Vol. 2 No. 03 (2024): The Eastasouth Management and Business (ESMB)
Publisher : Eastasouth Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58812/esmb.v2i03.258

Abstract

This research examines the relationship between organizational communication, participative leadership, work motivation, and employee creativity in the creative industries in Bali. A quantitative research design was adopted, and data was collected from 128 employees working in various creative sectors. Structural Equation Modeling (SEM-PLS) was used for data analysis. The research results show a significant positive relationship between organizational communication, participative leadership, work motivation and employee creativity. Organizational communication, participative leadership, and work motivation together explain about 60.2% of the variance in employee creativity. These findings underscore the importance of fostering open communication channels, empowering leadership practices, and motivational strategies to foster a culture of creativity and innovation in Bali's creative industries. Despite the contributions of this study, several limitations must be acknowledged, the cross-sectional nature of the data limits causal conclusions about the relationships studied.
Co-Authors . Melinda Aaron Edogbo Aye Abdul Gofur Ade Astuti Widi Rahayu Adi Soeprapto Afif Hakim Ahmad Farhat Ahmad Ridho Nurohman Ahmad Sopyan Akda Zahrotul Wathoni Akmal, Khafid Khaulsar Amalia Amalia Amallia Amallia . Amallia, Amallia Amanda, Almahyra Zea Amar Amar Amir Amir Amir Amir Anantadjaya, Samuel PD Anggreni, Made Ayu Ariefka, Reza Arif Murtadho, Dimas Arnes Yuli Vandika Asep Hermawan ASEP HERMAWAN Aulia Nanda, Rizki Azis, Slamet Abdul Basit, Arul Bertolomeus Haryanto Agung Bona Herman Sianturi Budi, Pangga Urip Setio Cahyo Wibowo Cahyo, Tegar Dwi Candra, Dika Chintya Lestari, Karina Dalimunthe, Fahmi Roy Damiyana , Damdam Decut Della Devi Marlita Dewadi, Fathan Dian Kristianto Diani, Rinny Dharma Dinarwati, Sri Dodi Mulyadi Dodi Mulyadi Dwicahyo, Tegar Edy Santoso Ekayana Sangkasari Paranita Fachry Abda El Rahman Faiz Ramadhan, Muhammad Fariza, Amelia Nur Fathan Mubina Dewadi Fathurohman Fathurohman Fazrin, Nazar Febrian, Wenny Desty Fitri Sulastri Gunawan Witjaksono Guntur, Muhamad Hartono, Drajat Hassan Mustapa Hidayat, Unang Insa Shabir, Abbiyu Insani, Nurlita Sukma Iskandar, Andi Arifuddin Jamalus, Jamalus Josef Hernawan Nudu Judijanto, Loso Karim, Mohammad Alfin Karina Chintya, Lestari Karundeng, Deby Rita Karyadi Karyadi Karyadi Khamaludin , Khamaludin Khoirudin Khoirudin, Khoirudin Lailisya Putri, Purnama Lentari Rumbiak, Grace Colombine Lidiawati, Neng Astri Louwis Perdian Sahat Marihot Lulut Alfaris M. Ali Akbar M. Fachmi Maqfirah , Poetri AL-Viany Marbun, Diansyah Markus Hartono Mayasari, Nanny Miftahudin, Moh Mochamad Heru Riza Chakim Muchammad Chusnan Aprianto Muhamad Sayuti Muhammad Nuzan Rizki Mulya, Fitra Mustafa, Fahrina Nainggolan, Gilbert Nana Rahdiana nanang nanang Nanda, Rizki Nanda, Rizki Aulia Nanny Mayasari Nawangwulan, Irma M Nedi, Laras Annisa Ulfitri Nindiani, Aina Nur, Arip Syaripudin Nurwijayanti Kusumaningrum Oganda, Decut Della Oktaviyanto, Syahrul Pandri, Pandri Patya, Dhea Patya, Dhea Intan Pratomo, Doddy Nur Prayoga, Rahmat Primananda, Pande Gde Bagus Naya Priyana, Yana Purnamasari, Etika Putra, Juniawan Mandala Rahdiana, Nana Ramadhan, Muhammad Faiz Ramli, Akhmad Retno Widowati Ria Estiana Rizki Amalia Pratiwi Roban Roban Roban, Roban Rohmah, Yuni Syifau ROSALIA, NIRMA RoziqiFath, Zain Fuadi Muhammad Rukmana, Indra Heri Ruswati, Ruswati Sagaf S. Pettalongi Sahroni, Taufik Roni, Mr. Sani, Indra santoso, Ekbal Sayuti, Muhamad Septian, Rafli Shieddieque, Apang Djafar Siagian, Ruben Cornelius Sihombing, Dina Agnesia Siti Rahmatia Pratiwi Siti Rohmah Soekirman , Atong Subroto, Desty Endrawati Sugiarto, Hendra Suhardiman, Sani Suhendra, Agus Sukarman Sukarman Sukarman Sukarman Sukarman Sukmayadi Sukmayadi Sulaiman Sulaiman Sulastri, Fitri Sunandar, Aris Abdul Supriandi Supriandi, Supriandi Suryadi Suryadi Suryani Afifah, Early Suyana Hadi Syamsuddin Syamsuddin Talindong, Agustinus Tandi, Asrin Taufik Ulhakim, Muhamad Tresnadjaja, Reynaldi Tri Susilowati Triana, N. Neni Tukino, Tukino Ulhakim, Mumamad Taufik Umar Dana, Rizko Ummah, Auliya Rahmatul Verdi Yasin Violin, Vivid Wahyudianty, Melsa Ulfie Wisnujatia, Nugrahini Susantinah Wuryanti, Lestari Yogy Atur Prasetyo yuda pratama Yuliastuti , Hilda Yuliastuti, Hilda