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All Journal Rotasi Rekayasa Mesin Sinergi REKAYASA JAIS (Journal of Applied Intelligent System) R.E.M (Rekyasa Energi Manufaktur) Jurnal Jurnal Pengembangan Rekayasa dan Teknologi Jurnal Surya Masyarakat Conference on Innovation and Application of Science and Technology (CIASTECH) JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) JATI (Jurnal Mahasiswa Teknik Informatika) Jurnal Teknik Industri Terintegrasi (JUTIN) TIN: TERAPAN INFORMATIKA NUSANTARA Information Science and Library Jurnal Rekayasa Energi dan Mekanika Jurnal Ahsana Media : Jurnal Pemikiran, Pendidikan dan Penelitian ke-Islaman Jurnal Serambi Abdimas Journal Computer Science and Informatic Systems : J-Cosys Mechanical Engineering for Society and Industry Jurnal Teknik Mesin Mechanical Xplore Journal of Mechanical Engineering, Science, and Innovation Sinergi Polmed : Jurnal Ilmiah Teknik Mesin Dulang: Jurnal Pengabdian Kepada Masyarakat Jurnal Penelitian Hukum Indonesia (J-PeHI) SmartComp Tematik Jurnal Pengabdian Sosial Journal of Halal Industry Studies Jurnal Polimesin Joong-Ki Annaba: Jurnal Ilmu Jurnalistik Systematic Literature Review Journal JIFA (Journal of Islamic Finance and Accounting) Jurnal DIMASTIK
Khoirudin Khoirudin, Khoirudin
Department of Computer Applied Technology, Nanchang University, China 999 Xuefu Road, Honggutan New District, Nanchang, Jiangxi Province, P.R. China Telp:+86-791-83969099 Fax:+86-791-83969069
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Key drivers of village fund management accountability: Insights from Sukoharjo district Khoirudin, Khoirudin; Noer Sasongko; Banu Witono
JIFA (Journal of Islamic Finance and Accounting) Vol. 7 No. 1 (2024)
Publisher : Universitas Islam Negeri Raden Mas Said Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22515/jifa.v7i1.9736

Abstract

This study investigates the impact of the government's internal control system, the village financial system application (Siskeudes), and the competence of village apparatus on the accountability of village fund management in Sukoharjo District. Utilizing a quantitative approach, data were collected from a sample of village apparatus using a simple random sampling technique. Respondents, who are operators of the Siskeudes application, provided insights through a structured questionnaire. The data were analyzed using multiple regression analysis. The findings reveal that both the government's internal control system and the Siskeudes application significantly enhance the accountability of village fund management. However, the competence of the village apparatus does not have a significant effect on accountability. These results suggest that robust internal controls and effective financial systems are critical for ensuring transparency and accountability in village fund management. The study contributes to the ongoing discourse on public fund management by highlighting the importance of technological and systemic factors over individual competencies in achieving accountable governance.  
Pelatihan Pengelasan SMAW untuk Pembuatan Konstruksi Sederhana di Desa Tegalsawah Karawang Timur Mulyadi, Dodi; Khoirudin, Khoirudin; Gymanstiar , Salman Fahrizal; Dhawy, Luay Raihan
Joong-Ki : Jurnal Pengabdian Masyarakat Vol. 3 No. 2: Februari 2024
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/joongki.v3i2.3078

Abstract

Pesatnya perkembangan industri di daerah Kabupaten Karawang menuntut adanya pengingkatan keterampilan penduduk sekitar agar mereka dapat bekerja pada sektor industri yang berada di sekitar mereka atau mereka dapat berkarya sebagai wirausahawan sesuai dengan keterampilan yang dimilikinya. Keterampilan pada proses pengelasan menggunakan Shielded Metal Arc Welding (SMAW) merupakan salah satu pilihan agar masyarakat mempunyai keterampilan khusus yang dapat digunakan untuk dapat bekerja pada sektor industri bidang otomotif, konstruksi, dan yang sejenis. Selain itu, pengetahuan akan mesin-mesin las dan jenis-jenis elektroda akan mampu meningkatkan keterampilan masyarakat yang akan terjun membuka usaha jasa pengelasan mandiri. Proses pengabdian pelatihan telah dilaksanakan di Desa Tegalsawah Kecamatan Karawang Timur dengan cara pengenalan secara teori dan praktek pengelasan langsung. Hasil pengabdian telah mampu meningkatkan pengetahuan para peserta mengenai jenis-jenis mesin las dan elektrodanya, dan para peserta telah mulai mampu untuk melakukan proses pengelasan sendiri.
Pelatihan Perakitan Panel Surya Untuk Santri Di Pondok Pesantren At-Taubah Tirtamulya Karawang Mulyadi, Dodi; Khoirudin, Khoirudin; Amir, Amir; Rizki Aulia Nanda; Agus Suprihanto; Karyadi, Karyadi
Joong-Ki : Jurnal Pengabdian Masyarakat Vol. 4 No. 1: November 2024
Publisher : CV. Ulil Albab Corp

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/joongki.v4i1.6351

Abstract

Pesantren At Taubah, sebagai pondok pesantren modern, mempunyai visi “menjadi Lembaga Pendidikan Islam berbasis life skill unuk menyiapkan generasi Indonesia yang maju, berkarakter/adab, dan memiliki keterbukaan wawasan iptek yang bermanfaat bagi lingkungan”. Pengabdian kepada masyarakat telah dilakuakn dengan tujuan untuk penambahan pengetahuan para santri di pondok pesantren tersebut tentang energi terbarukan, khususnya panel surya, merupakan salah satu upaya dalam menggapai visi pesantren, dimana mereka akan mempunyai ilmu dan pengetahuan (iptek) terkini. para santri juga memahami bahwa sumber energi surya (matahari) mempunyai dampak yang lebih baik bagi lingkungan dibandingkan dengan energi yang bersumber dari fosil. Pengetahuan tentang manfaat sumber energi surya telah mampu dibarengi dengan keterampilan para santri tentang bagaimana cara untuk merangkai peralatan panel surya hingga dapat dimanfaatkan menjadi sumber energi listrik. Para santri juga telah diberi pengetahuan dan keterampilan merangkai panel surya yang diiringi dengan pengetahuan penghitungan daya, tegangan, dan arus yang dihasilkan dari rangkaian panel surya yang direncakan atau yang telah dibuat.
The Heat Transfer Coefficient in a Copper Pipe Flow System Using a 40/60 Volume Ratio Ethylene Glycol/Water (EG/H2O) Blended Fluid Thiyana, Thyana; Junaedi, Ahmad; Rahman, Mumammad Arif; Sukarman, Sukarman; Khoirudin, Khoirudin; Azizah, Renata Lintang
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.v4i1.5570

Abstract

This study discusses the performance of Ethaline Glycol/water (EG/H2O) fluids at a volume ratio of 40/60. EG/H2O fluids are widely used as basic fluids in cooling and heating system applications. The discussion of EG/H2O fluid performance is focused on the analysis of the heat transfer coefficient and pressure drop. The study used an experimental method using a suction test made of pure copper with an inner diameter, outer diameter and length of 16 mm, 19 mm and 1500 mm respectively. The EG/H2O volume ratio at 40/60 was selected as the input parameter. Other input parameters are variations in the fluid flow rate which are regulated using a control valve at fluid flow rates of 4, 6, 8, 10.12, 14.16 and 18 liters/minute. A 2-unit tubular heater with a total capacity of 2000 W was installed on the sides of the copper pipes. A voltage regulator with a capacity of 3000 W is used to regulate the electric power by regulating the supplied voltage. Ampere pliers are used to measure amperage at the setting used. The experimental results show that the performance of the EG/H2O fluid on the heat transfer coefficient increases as the fluid flow rate increases. The highest heat transfer coefficient rate was obtained at a fluid flow rate of 18 L/minute, while the lowest value was obtained at a fluid flow rate of 4 L/minute. Pressure drops fluctuations occur as the fluid flow rate increases. Even though there is a fluctuating pressure drop, this condition does not significantly affect the friction factor, because the fluid flow characteristics occur in a turbulent manner
An Heat Transfer Coefficient and Pressure Characteristics in a Copper Pipe Flow System: A Preliminary study Utilizing an EG/Water Mixture Junaedi, Akhmad; Sukarman; Khoirudin, Khoirudin; Taufik Ulhakim, Muhammad; Lintang Azizah, Renata
Jurnal Teknik Mesin Mechanical Xplore Vol. 4 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.v4i2.5920

Abstract

This study investigates the performance of an ethylene glycol/water (EG/Water) fluid at a 40:60 volume ratio, a commonly used base fluid in heating and cooling systems. The evaluation focuses on analyzing heat transfer coefficients and pressure drops. The research adopts an experimental approach, utilizing a test section made of pure copper with an inner diameter of 16 mm, an outer diameter of 19 mm, and a length of 1500 mm. The volume ratio of EG/Water at 40:60 is an input parameter, along with varying fluid flow rates controlled by a valve, ranging from 2 to 18 liters per minute. Two tubular heaters with a combined capacity of 2000 W are attached to the copper pipe, regulated by a 3000 W voltage regulator. Electric current is measured with ammeters. The experimental results reveal that the heat transfer coefficient of the EG/Water fluid increases as the fluid flow rate rises. The highest heat transfer coefficient is achieved at 18 L/min, while the lowest is observed at 4 L/min. Pressure drop increases with higher flow rates, but this does not significantly affect the friction factor, as it undergoes a noticeable decrease while the Reynolds number increases.
The Box-Behnken Response Surface Methodology Approach to Optimize Tensile Strength Load in Resistance Spot Welding Using SPCC-SD Steel Mulyadi, Dodi; Amir, Amir; Cepi Budiansyah, Ade; Sukarman, Sukarman; Khoirudin, Khoirudin; Arif Wibowo, Ludvi; Kumbarasari, Shanti
Jurnal Teknik Mesin Mechanical Xplore Vol. 4 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.v4i2.6090

Abstract

This article describes an experimental investigation into optimizing spot welding resistance (RSW) using a spot-welding machine equipped with a dual-electrode Pressure Force System (PFS). The optimization procedure entails the incorporation of SPCC-SD (JIS G 3141), a low-carbon steel that finds extensive application in the automotive sector. With the widespread use of SPCC-SD steel, RSW is an essential process in the automotive industry for assembling body components. This study employs the Box-Behnken Response Surface Methodology (Box-Behnken-RSM) to optimize the tensile strength load (TS-load), a critical parameter in RSW, through a meticulous analysis of the interplay between Holding Time, Squeezing Time, Welding Current, and Welding Time. Through the methodical design of experiments, the collection of Tensile Strength Load data, and the application of statistical modeling via RSM, this study employs SPCC-SD steel to determine the optimal values for these variables in RSW. The results above readily offer a valuable understanding of the most significant determinants and their interrelationships, thus facilitating advancements in welding methodologies and quality control in the automotive manufacturing sector. This study employs the Box-Behnken Response Surface Methodology to investigate the impacts and interrelationships of different parameters thoroughly. It aims to enhance the TS-load using SPCC-SD steel during the resistance spot welding procedure. This research contributes to advancing welding methodologies employed in the automotive manufacturing sector.
A Comprehensive Investigation of Deep Drawing Processes for a 2-Inch Diameter Dop-pipe Cap: Numerical and Experimental Analysis Tikamori, Ghazi; Patya, Dhea Intan; Sukarman, Sukarman; Aulia Nanda, Rizki; Mulyadi, Dodi; Khoirudin, Khoirudin; Amir, Amir; Rokhman, Taufiqur; Safril, Safril
Jurnal Teknik Mesin Mechanical Xplore Vol. 4 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.v4i2.6101

Abstract

The persistent challenges in material forming processes arise from recurrent issues encountered during the deep drawing process, particularly involving cracks and deviations from standard thickness dimensions. This article investigates the deep drawing process using both experimental and numerical methodologies. The experimental approach employs a 40-ton capacity power press machine, while the numerical method utilizes the ABAQUS student version software. SPCC-SD (JIS G3141) is the selected material for producing a Dop-pipe 2-inch diameter pipe cap in both approaches. Noteworthy findings include the highest positive and negative correlations observed in elements E 46 and E 48, with values of 0.715 and -0.933, respectively. Minimal disparities, averaging around 4.6% for all components, were evident between the experimental and numerical methodologies. The numerical approach yielded predictive results identifying potential issues in elements E 47 and E 48. This observation did not reveal instances of tearing failure but instead showcased an increase in thickness due to a higher axial force between the dies and punched-in components. The study successfully and accurately predicted product thickness for all components, presenting a contrast with outcomes obtained through the experimental method. Furthermore, this research advances the deep drawing process, extending its applicability to broader material forming applications and ultimately enhancing overall production process efficiency.
Evaluating the Thermal Performance of Shell-and-Tube Heat Exchangers: The Role of Flow Rate in Water-Based Systems Afgani, Abduh Al; Zaidar, Chilfi; Saputra Sigalingging, Wanri; Sukarman; Khoirudin, Khoirudin; Abdulah, Amri
Jurnal Teknik Mesin Mechanical Xplore Vol. 5 No. 1 (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.v5i1.6129

Abstract

This research investigates the performance of water as a working fluid in the shell side of shell-and-tube heat exchangers (STHEs), explicitly analyzing how variations in flow rate influence the heat transfer coefficient, pressure drop, and friction factor characteristics. Experiments were conducted using an STHE with a SUS 201 stainless steel shell and a pure copper tube featuring an inner diameter of 10 mm and an outer diameter of 13 mm. The flow rates of the cold fluid varied at 9, 10, and 12 liters per minute (LPM), while the hot fluid flow was maintained at a constant rate of 6.67 LPM. A 600 W heater, regulated by a PID system, was utilized to evaluate thermal performance, with water serving as the hot fluid on the shell side and the cold fluid on the tube side. Results demonstrate a significant increase in both the heat transfer coefficient and the heat transfer rate with higher flow rates of the cold fluid, with the maximum heat transfer coefficient recorded at 12 LPM and the minimum at 9 LPM. The STHE exhibited high efficiency, with heat transfer rate differences between the shell and tube sides remaining below 5%. Although pressure fluctuations were observed with increasing flow rates, they did not substantially affect the friction factor, indicating a predominantly turbulent flow regime. These findings provide critical insights for optimizing heat transfer performance in STHEs, contributing to advancements in thermal management technologies and enhancing the design of efficient heat exchangers.
The Advanced Analysis of Deep Drawing Processes for 1-Inch Diameter Dop-Pipe Caps: Simulation and Experimental Insights Pratama, Tito Chaerul; Sukarman; Tikamori, Ghazi; Mulyadi, Dodi; Supriyanto, Agus; Amir, Amir; Khoirudin, Khoirudin; Hananto, Agus
Jurnal Teknik Mesin Mechanical Xplore Vol. 5 No. 1 (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.v5i1.7269

Abstract

This article investigates the challenges and solutions within the deep drawing process, focusing on issues like cracks and deviations from standard thickness dimensions. Utilizing both experimental methods with a 40-ton power press machine and numerical simulations via ABAQUS software, the study uses SPCC-SD steel to produce a Dop-pipe 1-inch diameter pipe cap. Key findings reveal significant correlations in elements E-90 and E-91, with minimal disparities of around 4.5% between experimental and numerical approaches, showcasing the accuracy of numerical predictions. Notably, the numerical simulations identify potential issues such as increased thickness due to higher axial forces, providing valuable insights for process optimization and defect reduction. By advancing the deep drawing process and extending its applicability to broader material-forming applications, this research contributes significantly to enhancing production efficiency and improving manufacturing practices, emphasizing the importance of simulation-driven approaches in achieving precision and quality enhancement in complex manufacturing processes.
Progressive Dies for L-hanger Ducting (L-HD) Utilizing Low-Carbon Steel SPCC-SD Material: An Experimental and Numerical Analysis Budiansyah, Ade Cepi; Taufik Ulhakim, Muhamad; Sukarman, Sukarman; Supriyanto, Agus; Amir, Amir; Mulyadi, Dodi; Khoirudin, Khoirudin
Jurnal Teknik Mesin Mechanical Xplore Vol. 5 No. 1 (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.v5i1.7763

Abstract

Industrial developments, especially in the manufacturing and construction sectors, recognize L-hanger ducting as a critical component in HVAC (heating ventilation and air conditioning) ducting systems, which play a role in supporting and stabilizing air ducts. The L-Hanger ducting manufacturing process involves a series of stages, such as shearing, blanking, piercing, trimming, and bending processes. This research focuses on the design and simulation of dies and punches for piercing, blanking, and bending processes using 1.6 mm-thick SPCC-SD material. The aim of this research is to design and analyze progressive dies in order to increase the efficiency of the production process. A comprehensive calculation of the forces involved in the shearing, blanking, piercing, trimming, and bending processes is required in order to predict press machine tonnage requirements to support the production process. This research applies theoretical and numerical validation approaches. Theoretical analysis is used to calculate the overall forces, which are then compared with numerical results and verified through an experimental approach. By understanding and optimizing the design of progressive dies, it is hoped that we can increase the production efficiency of L-hanger Ducting and expand knowledge in the field of metal forming, contributing to the metal forming industry and supporting the development of science.
Co-Authors Adiwibowo, Zakaria Afgani, Abduh Al Afif Hakim Agus Suprihanto Agus Supriyanto AHMAD JUNAEDI Akhmad Junaedi Amar Amar Amir Amir Amri Abdulah Amri, Saeful April Firman Daru Aria Hendrawan, Aria Arif Wibowo, Ludvi Atmoko Nugroho Aulia Nanda, Rizki Azizah Azizah Azizah, Renata Lintang Azmi, W. H. Azzaki, Adnan Badriyah, Fatikhatul Banu Witono Basit, Arul Bernadus Very Christoko Budi, Pangga Urip Setio Budiansyah, Ade Cepi Cahyo, Tegar Dwi Cahyono, Yono Cepi Budiansyah, Ade Dewi Nurdiyah, Dewi Dhawy, Luay Raihan Dodi Mulyadi Dodi Mulyadi Dwicahyo, Tegar Fahrizin, Nazar Fazin, Nazar Fazrin, Nazar Fuadiah, Shiema Jamalah Galet Guntoro Setiaji Gunata, Krida Pandu Gymanstiar , Salman Fahrizal Hadi, Soiful Hananto, Agustia Hanif, Mohammad Burhan Hassanudin, Wahyu Maulana Hidayat, Syahrul Taufik Ines Heidiani Ikasari Irfan Rizky Hutomo Irfani, Tomas Karyadi Karyadi Khusna, Arina Kumbarasari, Shanti Lailisya Putri, Purnama Lamijan Lamijan, Lamijan Lintang Azizah, Renata Miftahudin, Moh Muahemin, Enjang Muji Setiyo Murtalim, Murtalim Muzammil, Ach Nanda, Rizki Aulia Noer Sasongko Nugroho, Fajar Raditya Nur Wakhidah Nur Widyartha, Yogi Nurtriana Hidayati Panata, Helmi Prasetio Patya, Dhea Intan Pratama, Tito Chaerul Prima, Juan Candy Prind Triajeng Pungkasanti, Prind Triajeng Putri, Nela Aulina Rahdiana, Nana Rahman, Mumammad Arif Rajab, Dede Ardi Rakasiwi, Galih Ramadan, Trisa Ramadani, Yovi Adhi Ransanoi, Teep Riana, Rati Ridwan Rizki Aulia Nanda Rohman Rosaria, Stefani Dewi Safril Safril Sanusi Sanusi Saputra Sigalingging, Wanri Saputra, Ridhwan Salahuddin Saputra, Ridhwan Shalahuddin Saputra, Rio Handika Setiarso, Galih Shieddieque, Apang Djafar Sudarjat, Muhammad Fauzaan Fikri Sudarjat Suhara, Ade Sukarman Sukarman Sukarman Sukarman Sulistiyanto Sulistiyanto, Sulistiyanto Supriyanto, Danang Susanto Susanto Susilo, Hendri Syamsudin Syamsudin Tantri, Andini Kartika Taufik Ulhakim, Muhamad Taufik Ulhakim, Muhammad Taufiqur Rokhman, Taufiqur Thiyana, Thyana Tikamori, Ghazi Titin Winarti Titis Handayani Tri Toto Wiharjianto, Muhammad Ulhakim, Mumamad Taufik Vensy Vydia Wahyu Christanto, Febrian Widodo, Muhammad Faizal Agung Wieke Dewi Suryandari Zaidar, Chilfi ZAMAN, BADROE