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Asian Journal Science and Engineering
Published by CV. Creative Tugu Pena
ISSN : 29636752     EISSN : 29636752     DOI : http://dx.doi.org/10.51278/ajse.v1i2.545
Core Subject : Science, Engineering,
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering
Asian Journal Science and Engineering publishes all those best ideas from the science, which can be introduced in the engineering. Since, obtaining the high-quality, competitive products is based on introducing high technologies from various independent spheres of scientific researches, but united by a common end result - a finished high-technology product. The purpose of this journal is to publish quality articles dedicated to the scientific research development that focuses Mechanical Engineering, Civil Engineering, Chemical Cngineering, Electrical Engineering, Engineering Physics
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 50 Documents
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Manufacture and Analysis Performance of Injection Device System 4 Stroke Engine Againts Emissions Cahyo, Bagus Dwi; Irawan, Bambang
Asian Journal Science and Engineering Vol. 2 No. 2 (2023): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v2i2.963

Abstract

Electronic fuel injection is a mechanism of fuel injection by electronic in to combustion chamber with Electronic Control Unit (ECU) for process control enter and burning air-fuel mixture. Fuel injection system is a development of natural suction system which next five years will no longer be produced. Natural suction system produces high emissions due to inhomogenous the air-fuel mixture. The natural suction system still widely used and its possible that in the next five years it will no longer be produced. The purposes of the study are manufacture and redesign injection intake manifold by sand casting with alumunium material as a replacement of natural suction fuel system with Arduino AT-Mega 2560 as a microcontroller with crankshaft posistion sensor, unit sensor (manifold absolute pressure, throttle position, intake air themperature) to produce eficient emissions. The study method of analysis data for making conclusion is quantitive experiments twoway anova with two independent variables are (1) intake manifold type and (2) fuel flow rate volume against emissions. The study results are manufacture of injection intake manifold by using the sand casting method with aluminium material is simple mehod for changes to the injection system againts emissions with value CO 14,27%, HC 212 ppm, CO2 12,133 % and O2 6,270 %, intake manifold type and fuel flow volume significant againts emissions. Keywords: Injection Device System, Intake Manifold, Redesign, Emissions
Format Methods on Storage Media (Hard Disk) for Optimization Data Storage Capacity Saukani, Imam; Nuraini, Eko; Nurhadi, Slamet; Sumarno, Agus Sukoco Heru; Saptawati, Rina Tri Turani; Prasetyo, Prasetyo; Sifaunnufus Ms, Fi Imanur
Asian Journal Science and Engineering Vol. 2 No. 2 (2023): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v2i2.1018

Abstract

This research is to determine how much storage capacity in the File Allocation Table 16 (FAT16), File Allocation Table 32 (FAT 32) and New Technology File System (NTFS), the use of the hard drive is currently the of the maximum capacity will not be able to use when not using the appropriate partition, because it can affect the amount of storage capacity available after the hard disk in the partition. This type of research is reviewed based on its purpose of use, so the research to be conducted is applied research because the products of this research can be used by all computer users. Ultimately, the findings from this study will contribute to a comprehensive understanding of how file system selection and partitioning can influence the actual storage capacity of hard drives, thus informing best practices for maximizing available storage space. Keywords: New Technology File System, File Allocation Table, Storage Media
Cathodic Corrosion Protection on Low Carbon Steel Type H-beam (SM490YB) Using Zinc (Zn) Anode with Soil Corrosive Media Mixed with NaCl Lazuardi, Lazuardi; Rizza, Muhammad Akhlis; Hadi Susilo, Sugeng; Maryono, Maryono
Asian Journal Science and Engineering Vol. 2 No. 2 (2023): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v2i2.1019

Abstract

H-beam steel is often used as a basic material for building construction on the coast. Cases that often occur are H-beam steel that is installed quickly corrodes. This incident is caused by the coastal area belongs to an environment with a high level of corrosiveness.From the results of the pH tester test, the value of the degree of acidity is in rangeof pH=5 to pH=7.Coastal soils contain a lot of chloride Cl. In an acidic environment accompanied by a chloride Cl element, it triggers the breakdown of the passive layer on the surface which causes an anodic region to form so that the steel is in a state of releasing electrons. The problem that occurs can be overcome using a sacrificial anode cathodic protection system, with a zinc metal protection mechanism (Zn) 99, 99% which is used as a sacrificial anode has a lower potential value than the potential value of H-beam steel as a cathode protected by zinc metal (Zn) . This value of zinc metal (Zn) is more negative than the Fe steel which potential value is . The value of the potential difference is that it can be ascertained that the released Zn electrons can flow and adhere to the protected H-beam steel. Keywords: Surface Corrosion, Cathodic Protection, H-beam Steel, Zinc Anode(Zn)
The Effect of Fuel Pump Pressure and Number of Injector Holes on 150cc Matic Motorcycle Performance Santoso, Santoso; Yulianto, Fian Arif; Yudiyanto, Eko; Aditya, Candra; Sabarudin, Suriansyah
Asian Journal Science and Engineering Vol. 2 No. 2 (2023): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v2i2.1020

Abstract

This study aims to evaluate the effects of increasing fuel pump pressure and varying the number of holes in the injector on engine performance. The fuel system in the engine has evolved from carburettor to injection system to improve the efficiency of fuel usage. In this study, the fuel pump pressure was increased to three levels, namely 2.5 bar, 3 bar, and 3.5 bar. In addition, variations in the number of holes in the injector were also tested using 3-hole, 6-hole, and 8-hole injectors. Engine performance was evaluated based on the power and torque produced. The research method used is experimental with power and torque measurements as engine performance data. The results showed that increasing fuel pump pressure and varying the number of holes in the injector had a significant effect on engine performance. Increasing the fuel pump pressure to 3.5 bar results in an increase in engine power and torque. The best power test results were obtained at a fuel pump pressure of 3 bar with a combination of 6-hole injectors, producing a maximum power of 11.63 HP at 6000 rpm engine speed. While the best torque test results were obtained at a fuel pump pressure of 3.5 bar with a combination of 3-hole injectors, producing a maximum torque of 43.10 Nm at 3000 rpm. The variation in the number of holes in the injector shows that the use of injectors with more holes tends to increase engine power and torque. Keywords: Engine Performance, Fuel Pump Pressure, Fuel Efficiency Injector Holes, Injection System
Integrated Robotic Arm Control: Inverse Kinematics, Trajectory Planning, and Performance Evaluation for Automated Welding Huda, Arif Nur; Pebrianti, Dwi; binti MD. Zain, Zainah
Asian Journal Science and Engineering Vol. 2 No. 2 (2023): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v2i2.1021

Abstract

This research delves into the automated functionality of robotic arm manipulators, a hallmark of Industry 4.0, within the manufacturing sector. The study focuses on precise movement adhering to predetermined trajectories, addressing the vital aspects of inverse kinematics and trajectory planning in robotic arm control. Utilizing the Matlab robotic toolbox, the research conducts simulations of inverse kinematic and trajectory planning. An experimental setup involving a robotic arm controlled by an Arduino Mega 2560 microcontroller, embedded with the inverse kinematic algorithm and trajectory planning, is executed. Data acquisition involves inputting coordinates and orientation for automatic welding along a straight path. Joint angles are measured using rotary encoders and converted into Cartesian coordinates to determine the end-effector's position. Discrepancy analysis compares measured joint angles with simulation values, revealing error margins. Movement quality of the robotic arm is assessed through Capability Processes (CP) evaluation. Results indicate disparities between experimental and simulated values. At input coordinates (400mm, 0mm, 300mm), joint angle errors of 2.51º, 0.98º, and 1.48º are observed for joints 2, 3, and 5, respectively. Similarly, at input coordinates (300mm, 0mm, 300mm), joint angle errors of 1.17º, 1.5º, and 2.7º are registered for the same joints. Trajectory error analysis during straight welding reveals average errors of 2.25 mm and 10.57 mm along the x and y axes. Mean absolute errors for joints 2, 3, and 5 are 1.9º, 0.48º, and 1.91º. Keywords: Robotic Arm Manipulators, Inverse Kinematics, Trajectory Error Analysis
Hydrological Dynamics and Road Infrastructure Resilience: A Case Study of River Nile State, Sudan Mohamed, Hossam Aldeen; Hassan, Abubakr
Asian Journal Science and Engineering Vol. 3 No. 1 (2024): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v3i1.1362

Abstract

This study explores the intricate relationship between hydrological processes, watershed management, and road infrastructure resilience, focusing on the impact of flooding on roads intersecting with streams in the River Nile State, Sudan. Located between 16.5°N to 18.5°N latitude and 33°E to 34°E longitude, this region, crucial to both ecological and economic aspects of the Nile River, faces significant challenges due to flooding. Utilizing precise Digital Elevation Models (DEMs) and advanced hydrological modeling techniques, the research aims to identify optimal solutions, such as overpass bridges, to mitigate flood risks. The total road length within the study area is quantified at 3572.279 kilometers, with stream orders categorized by length distribution: First Order at 2276.79 kilometers (50.7%), Second Order at 521.48 kilometers (11.6%), Third Order at 331.26 kilometers (7.4%), and Fourth Order at 1359.92 kilometers (30.3%). A notable flood event in 2020 disrupted approximately 120 meters of the Atbara - Shendi Road, revealing damage beyond initial expectations despite existing overpasses. This underscores the need for enhanced flood mitigation strategies and a reassessment of infrastructure resilience. The area where the flood caused the road cut had a watershed area of 214 square kilometers. The study identified 26 points where the watershed area is equal to or exceeds 214 square kilometers, indicating a higher risk of road disruption due to flooding. Enhanced scrutiny, potentially using high-resolution DEMs, is recommended for better assessment and management of these vulnerabilities. By integrating advanced DEM data and hydrological analysis, the study proposes tailored solutions to protect infrastructure while promoting sustainability and environmental stewardship.
DEEP LEARNING FOR CARNATIC AND NON-CARNATIC MUSIC CLASSIFICATION: A COMPARATIVE STUDY OF CNN AND RNN ARCHITECTURES Manikandan, Chitrarasu
Asian Journal Science and Engineering Vol. 3 No. 2 (2024): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v3i2.1645

Abstract

This study articulates a deep learning approach for classifying Carnatic and Non-Carnaticmusic using Convolutional Neural Networks (CNN) and Recurrent Neural Networks (RNN). Thedifferential features, such as microtones, and improvisational structures of Carnatic music causesevere difficulties in the application of automated genre classification. Thus, audio features ofMFCCs, chroma features, and spectrograms were extracted to capture key spectral and tonalproperties in order to realize excellent classification. The CNN model achieved an accuracy of 95.1%,outperforming the RNN model's 93.8%, with ROC-AUC scores of 0.96 and 0.94, respectively. Thesemetrics indicate the CNN’s effectiveness in handling complex spatial features in audio data, while theRNN provided valuable insights into sequential patterns. This Result highlights CNN’s advantages incapturing the intricacies of genre classification for culturally rich music forms like Carnatic. Futureresearch will focus on increasing the performance of such models, and leveraging both spatial andtemporal dimensions in audio might happen using hybrid CNN-RNN architectures. Also, this researchcontributes to the advancement of technology around music classification with promising avenues tocultural preservation and digital archiving of music.
An Implementation of Project Investment Management on Blockchain-based Crowdfunding System Yan Watequlis Syaifudin; salies Apriliyant; Hein Htet; Ferdy Hanan Pradana; Yuri Ariyanto; Indrazno Siradjuddin; Pramana Yoga Saputra; Triana Fatmawati
Asian Journal Science and Engineering Vol. 3 No. 1 (2024): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v3i1.1686

Abstract

This study explores the transformative impact of blockchain technology on corporate investment management by developing an application that enhances transparency, security, and efficiency while mitigating fraud risks. By utilizing the Proof of Authority (PoA) methodology on a private blockchain network, the application enables secure, immutable transaction records and facilitates the management of investment projects along with token purchase transactions. It is structured using the Waterfall model, including essential phases such as requirements analysis and rigorous testing, which demonstrate the application’s ability to improve operational efficiency and foster accountability among stakeholders. The research highlights the role of tokenization in crowdfunding, wherein rights or assets are converted into digital tokens, enhancing transparency and liquidity. The system also integrates smart contracts to automate critical investment processes while ensuring secure user authentication and authorization. Evaluations reveal high success rates in functionality and user acceptance, though challenges such as scalability and regulatory compliance remain. Addressing these aspects is vital for maintaining the system's effectiveness and user confidence in decentralized investment management.
The Design Approach of Ethereum-based Student Achievement Record System on Private Blockchain Network Yan Watequlis Syaifudin
Asian Journal Science and Engineering Vol. 3 No. 2 (2024): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v3i2.1687

Abstract

Blockchain transformative technology that enables secure, decentralized, and immutable transaction recording through a network of cryptographic blocks, enhancing transparency and trust without the need for a central authority or intermediaries. The Ethereum platform builds upon this foundation by facilitating the development of decentralized applications (dApps) and smart contracts, which automate processes and improve operational efficiency. In higher education, the Student Activity Credit Unit (SACU) system exemplifies the application of blockchain by managing both academic and non-academic achievements, thus promoting a holistic approach to student development and enhancing essential soft skills like leadership and teamwork. By leveraging a decentralized system built on Hyperledger Besu, the SACU ensures that student records are secure, transparent, and scalable, while providing real-time monitoring and verification of achievements. This paper evaluates the decentralized student’s achevements record model, demonstrating its improvements in transparency, security, and efficiency over existing systems, ultimately preparing graduates for professional success and fostering trust in the recognition of their qualifications.
Occupational Safety And Health (K3) Through The Risk Evaluating Process For Pt Cozy Boarding House Project Workers Prima Land In Malang Damayanti, Fifi; Setya Wijaya, Handika; Nahak, Yohanes
Asian Journal Science and Engineering Vol. 3 No. 2 (2024): Asian Journal Science and Engineering
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/ajse.v3i2.1688

Abstract

Construction companies must focus on occupational health and safety (K3) and must cover the safety and welfare of workers. JKK (Work Safety Committee) has carried out various safety assessments and risk assessments to improve worker safety and health. Comfortable Housing Boarding House PT. has carried out a risk assessment using the Prima Land method to assess the risk and safety of construction projects. The study found 13.3% of risks were classified as extreme, 30% high risk, 13.3% moderate risk, and 43.34% low risk. Risk assessment methods will be used in this research to further improve K3 working conditions and ensure worker safety. This study identified three main factors that influence OHS health and safety: organizational culture, environment, and risk assessment methods. By implementing these measures, construction companies can improve their OSH safety and health management section and reduce the risk of accidents and injuries.

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