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Irza Sukmana
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INDONESIA
Journal of Applied Science, Engineering and Technology (J. ASET)
Published by INSTEP Publishing
ISSN : 27228371     EISSN : 27228363     DOI : https://doi.org/10.47355/aset
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Industrial & Manufacturing Engineering
J.ASET is published by INSTEP Publishing Indonesia and it focuses on all subjects in engineering, applied sciences, and vocational studies, they are including but not limited to: Mechanical and Manufacturing Industrial Engineering Chemical and Environmental Engineering Computer and Information Technology Electrical and Telecommunication Material and Mining Civil Engineering Architecture and Urban Planning Geophysics and Geodetic Engineering Vocational Engineering Studies Mathematics and Applied Sciences Medical Science and Biomedical Engineering Agricultural Engineering and Technology Interdisciplinary research
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 46 Documents
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A Implementation of the Support Vector Machine Algorithm in the Student Thesis Subject Classification System at the University of Lampung Hadi, Rizky
Journal of Applied Science, Engineering and Technology Vol. 2 No. 2 (2022): December 2022
Publisher : INSTEP Network

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Abstract

The Technical Implementation Unit (UPT) of the University of Lampung Library is responsible for archiving student scientific work (thesis). Filing is done manually, using the DDC or Dewey Decimal Classification system, thus allowing for the tendency of inaccurate Subject selection and long grouping durations. This study aims to apply the Support Vector Machine (SVM) algorithm in classifying thesis subjects stored in the Unila student scientific article repository. The application of the SVM algorithm uses the machine learning life cycle method which includes the data collection process, data pre-processing, data splitting, model training, to the model evaluation process. The data used are Unila student thesis titles totaling 1707 data. The results of this study are a thesis subject classification model based on the title with the SVM model where the accuracy of the training data in the model training process is 0.95, and the evaluation model process with an accuracy rate of 0.65.
STUDY OF XCEPTION MACHINE LEARNING ARCHITECTURE IN WASTE CLASSIFICATION SYSTEM Mulyani, Yessi; Budi Wintoro, Puput; Komarudin, M.; Kurniawan, Rian
Journal of Applied Science, Engineering and Technology Vol. 2 No. 2 (2022): December 2022
Publisher : INSTEP Network

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Abstract

Garbage generated every day can be a problem because some types of waste are difficult to decompose so they can pollute the environment. Waste that can potentially be recycled and has a selling value is inorganic waste, especially cardboard, metal, paper, glass, plastic, rubber and other waste such as product packaging. Various types of waste can be classified using machine learning models. The machine learning model used for classification of waste systems is a model with the Convolutional Neural Network (CNN) method. The selection of the CNN architecture takes into account the required accuracy and computational costs. This study aims to determine the best architecture, optimizer, and learning rate in the waste classification system. The model designed using the Xception architecture with the Adam optimizer and a learning rate of 0.001 has an accuracy of 87.81%.
USABILITY ANALYSIS OF VISUAL NOVEL GAMES USING THE USABILITY TESTING METHOD Kurniawan Adi Perdana
Journal of Applied Science, Engineering and Technology Vol. 2 No. 2 (2022): December 2022
Publisher : INSTEP Network

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Abstract

Visual novel games are interactive fiction games featuring static images. Visual novel games focus on the story of one of the visual novel games that game lovers often play, namely the game The Sun Shine Over Us. This game tells about mental health among teenagers. The purpose of this research is to analyze the “The Sun Shine Over Us” game based on several criteria and the satisfaction of using the application by users. This study uses the system usability scale method to determine the level of satisfaction of this visual novel game player. The data used are players who have played and have never played a visual novel game totaling 17 people with the age category of 17-28 years. Based on the reviews from players who have played visual novel games, the results of this study can be concluded that the visual game "The Sun Shine Over Us" is interesting to play in terms of appearance, monetization and UI assessment.
USABILITY ANALYSIS OF VISUAL NOVEL GAMES USING THE USABILITY TESTING METHOD Kurniawan Adi Perdana
Journal of Applied Science, Engineering and Technology Vol. 3 No. 1 (2023): June 2023
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v3i1.45

Abstract

Visual novel games are interactive fiction games featuring static images. Visual novel games focus on the story of one of the visual novel games that game lovers often play, namely the game The Sun Shine Over Us. This game tells about mental health among teenagers. The purpose of this research is to analyze the “The Sun Shine Over Us” game based on several criteria and the satisfaction of using the application by users. This study uses the system usability scale method to determine the level of satisfaction of this visual novel game player. The data used are players who have played and have never played a visual novel game totaling 17 people with the age category of 17-28 years. Based on the reviews from players who have played visual novel games, the results of this study can be concluded that the visual game "The Sun Shine Over Us" is interesting to play in terms of appearance, monetization and UI assessment.
Design And Development Of Android Application For Daily Construction Labor Mandor’s With HCD (Human Centered Design) Approach Abdullah, Ahmad; Muhammad, Meizano Ardhi; Pratama, Mahendra; Septama, Hery Dian
Journal of Applied Science, Engineering and Technology Vol. 3 No. 1 (2023): June 2023
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v3i1.46

Abstract

The construction industry is a development sector in Indonesia with a constantly increasing number of projects annually. In the projects, there is usually a construction manager (or 'mandor', in Indonesian) in charge of coordinating daily laborers and responsible for the construction's progress & financial report. These tasks often had problems, such as bookkeeping or managing construction workers. This research aims to develop an Android application for bookkeeping construction projects as a solution for construction managers to manage personal and non-personal resources. The development of this application uses an HCD (Human Centered Design) approach, which consists of 5 steps: user requirements gathering, problem grouping, designing, developing, and testing. The application is tested using the Blackbox and UAT (User Acceptance Test) method, gaining a 91.03% approval response. The research successfully provides an Android-based application that fulfills the needs of construction managers to work efficiently in managing personal and non-personal resources of the construction project.
EVALUATION OF SWELLING-SHRINKAGE IN LIME STABILIZED SOIL DUE TO THE ADDITION OF MATOS STABILIZER Novi Suprianti
Journal of Applied Science, Engineering and Technology Vol. 3 No. 2 (2023): December 2023
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v3i2.48

Abstract

Bad soil properties such as high plasticity index values, high potential for swelling and shrinkage, and low shear strength are the problems encountered. To find out the swelling and shrinkage value of the soil, 2 stages of testing were carried out, namely testing the physical and mechanical properties of the soil and stabilizing it with additives in the form of 4% lime and 2%, 4% and 8% Matos soil stabilizer. The results of research on Capkala soil with a specific gravity value of 2.568, a liquid limit value of 51.444%, a plastic limit value of 29.507%, and an IP value of 21.937%. Then, based on sieving analysis, it shows that according to the AASHTO classification, Capkala soil is included in A-7-6, namely clay soil, while according to the USCS classification, it is included in the MH group, namely inorganic silt or fine sand, and according to the USDA classification, it includes silty clay. From the results of the disturbed soil swelling pressure test of 2.427 Kg/cm2 and included in the swelling potential low, while the 40% bentonite mixture obtained a swelling pressure result of 4.133 Kg/cm2 which was included in the swelling potential high. Meanwhile, the effect of adding Matos soil stabilizer to disturbed soil modified with 40% bentonite and Matos in the swelling pressure test resulted in the soil being included in the swelling potential medium. From the results of the disturbed soil FSI a value of 26.667% was obtained which has a moderate degree of development category. The effect of adding 40% bentonite to disturbed soil resulted in an increase of 45.455% in the category of high degree of development. Meanwhile, the effect of adding Matos soil stabilizer to disturbed soil modified with 40% bentonite in the free swelling index test included in the category of moderate degree of development.
THE EFFECT OF MATOS SOIL STABILIZER AS AN ADDITION MIXTURE ON INDEX PROPERTIES OF SOIL STABILIZED WITH CEMENT Maulana,Muhammad.Y F
Journal of Applied Science, Engineering and Technology Vol. 3 No. 1 (2023): June 2023
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v3i1.49

Abstract

All civil engineering constructions are built on or supported by soil, making the stability and safety of the structures dependent on the soil's bearing capacity. In road pavement structures, poor-quality pavement layers can lead to reduced support for the road pavement layers. Therefore, stabilization efforts are undertaken to address this issue. The objective of this research is to investigate the influence of matos soil stabilizer mixtures with varying matos content of 0%, 1%, 2%, 4%, and 8%, combined with a cement content of 5%, and different curing times of 0, 7, and 14 days on the classification and index properties of the soil. The results indicate that the index properties of the soil improve with different curing times of the cement and matos mixtures. This can be observed through a decrease in the soil's plasticity index, an increase in bulk density, a decrease in permeability coefficient, a decrease in water content and wet unit weight of the soil with longer curing periods. Additionally, the soil classification shows a more granular nature compared to the original soil.
Identification of Landslide-Prone Areas Using Drones and Geoelectricity in Gang Sakal, Panjang District, Bandar Lampung Yanti Lestari
Journal of Applied Science, Engineering and Technology Vol. 3 No. 1 (2023): June 2023
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v3i1.51

Abstract

Bandar Lampung City is a densely populated area with a morphology influenced by steep hilly paths. High rainfall can produce hydrometeorological hazards in the form of avalanches. This study aims to examine the material vulnerability of landslides. A combination of topographic mapping using drones and subsurface imaging through ERT geoelectric. Two subsurface profiles were analyzed through the Wenner-Schlumberger configuration with a line length of 120 m and electrode spacing of 5 m. The morphological slope of the drone data processing results is 60 degrees. The dominant subsurface profile has a resistivity of 1 Ωm to >279 Ωm with a depth of 23 m in the first line and a resistivity of 1 Ωm to >343 Ωm with a depth of 23 m in the second line as pyroclastic material. The composition of constituent materials that have not undergone compaction and slope has the possibility of a landslide hazard in the two observed profiles.
Analysis of Mutual Interaction Effect of Six-Individual Characteristic Factors of Safe Weight Lift Model omotunde, muyiwa
Journal of Applied Science, Engineering and Technology Vol. 3 No. 1 (2023): June 2023
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v3i1.52

Abstract

An ergonomic mathematical model to compute Safe Weight Lift (SWL) was formed with principle of strain energy to limit risk of low back pain amid construction employees in Nigeria. However, mutual interaction effect of the selected factors were not yet studied. Therefore, analysis of mutual interaction effect of compounded chosen male distinctive factors of biomechanical of body weight, spinal shrinkage, and spine length, with physiological of age, and gender as well as psychophysical of surrounding temperature and lift frequency were done. The factors data were gotten using ZT-160 scale, tailor-tape rule, fly-back timing and RH/Temperature pen from fifty masculine manual construction workers selected using purposive sampling technique. The data were inputted into Ms Excel and SPSS for analyses using Multiple Linear Regression (MLR), Regression Curve Estimate (RCE), and ANOVA at alpha level 0.05. The MLR investigation shown that mutual interactions of the compounded factors were significant (p=0.00) and gave R2=0.94, while RCE predicted quadratic relationship with the SWL (p=0.00), and the ANOVA revealed that factors were significant (p=0.00) with F-test=404.53. The mutual interactions of the model selected factors were significant. Therefore, it can be used as a tool for decision-making for safety management of male labourers involve in manual load handling. Keywords: Low back pain; Male; Mutual interaction effect; Safe Weight Lift; Strain energy
Analysis of Mutual Interaction Effect of Six-Individual Characteristic Factors of Safe Weight Lift Model Muyiwa, Omotunde; Akanbi, Olusegun
Journal of Applied Science, Engineering and Technology Vol. 3 No. 2 (2023): December 2023
Publisher : INSTEP Network

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47355/jaset.v3i2.53

Abstract

An ergonomic mathematical model to compute Safe Weight Lift (SWL) was formed with principle of strain energy to limit risk of low back pain amid construction employees in Nigeria. However, mutual interaction effect of the selected factors were not yet studied. Therefore, analysis of mutual interaction effect of compounded chosen male distinctive factors of biomechanical of body weight, spinal shrinkage, and spine length, with physiological of age, and gender also, psychophysical of surrounding temperature and lift frequency were done. The factors data were gotten using ZT-160 scale, tailor-tape rule, fly-back timing and RH/Temperature pen from fifty masculine manual construction workers selected using purposive sampling technique. The data were inputted into Ms Excel and SPSS for analyses using Multiple Linear Regression (MLR), Regression Curve Estimate (RCE), and ANOVA at alpha level 0.05. The MLR investigation shown that mutual interactions of the compounded factors were significant (p=0.00) and gave R2=0.94, while RCE predicted quadratic relationship with the SWL (p=0.00), and the ANOVA revealed that factors were significant (p=0.00) with F-test=404.53. The mutual interactions of the model selected factors were significant. Therefore, it can be used as a tool for decision-making for safety management of male labourers involve in manual load handling.

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