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Dahlan Abdullah
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International Journal of Engineering, Science and Information Technology
Published by Universitas Malikussaleh
ISSN : -     EISSN : 27752674     DOI : -
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The journal covers all aspects of applied engineering, applied Science and information technology, that is: Engineering: Energy Mechanical Engineering Computing and Artificial Intelligence Applied Biosciences and Bioengineering Environmental and Sustainable Science and Technology Quantum Science and Technology Applied Physics Earth Sciences and Geography Civil Engineering Electrical, Electronics and Communications Engineering Robotics and Automation Marine Engineering Aerospace Science and Engineering Architecture Chemical & Process Structural, Geological & Mining Engineering Industrial Mechanical & Materials Science: Bioscience & Biotechnology Chemistry Food Technology Applied Biosciences and Bioengineering Environmental Health Science Mathematics Statistics Applied Physics Biology Pharmaceutical Science Information Technology: Artificial Intelligence Computer Science Computer Network Data Mining Web Language Programming E-Learning & Multimedia Information System Internet & Mobile Computing Database Data Warehouse Big Data Machine Learning Operating System Algorithm Computer Architecture Computer Security Embedded system Coud Computing Internet of Thing Robotics Computer Hardware Information System Geographical Information System Virtual Reality, Augmented Reality Multimedia Computer Vision Computer Graphics Pattern & Speech Recognition Image processing ICT interaction with society, ICT application in social science, ICT as a social research tool, ICT in education
Arjuna Subject : Ilmu Komputer (semua kategori) - Ilmu Komputer (Lain-Lain)
Articles 14 Documents
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Search results for , issue "Vol 3, No 2 (2023)" : 14 Documents clear
The Study Strength of Laminated Bamboo Pedestal Using Bolted Joints Dewi Purnama Sari; Andi Yusra; Zakia Zakia; Sri Kurniati
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i1.421

Abstract

Bamboo has properties that vary from the joint. This study aims to investigate the effect of diameter change on the strength test of laminated bamboo cones, the degree of damage that occurs in laminated bamboo specimens, and the connection tool. The purpose of this study is to investigate the effect of diameter change on the strength test of laminated bamboo cones, to investigate the degree of damage that occurs in laminated bamboo specimens, and to determine the static load that can be withstood. Deformation characteristics under working load according to [1]. The method used is the half-hole method. In this study, we found that changes in bolt diameter affected the average pivot strength (Fe), with stress increasing with increasing bolt diameter. This study was conducted to determine the properties of the static load that can be endured and the deformation that occurs in laminated bamboo under load. To get the data, we need to do laboratory tests. Bamboo pivot strength test to find Fe max and Fe 5%. A long tube with a width of 39.5 cm, a height of 45 cm, and a length of 450 cm. During the pivot strength test, the broken sample had a zigzag change of 10 mm in diameter. As a result of the strength test of laminated bamboo sticks, the average maximum Fe values of screws with diameters of 8 mm and 10 mm were 85584 MPa and 91930 MPa, respectively. The average (Fe 5%) values for 8 mm and 10 mm diameter screws are 74.819 MPa and 65.594 MPa.
Design of Safe and Quality Potato Chips Product Packaging Using Quality Function Deployment Method Azwar Harahap; Muhammad Zakaria; Syukriah Syukriah; Meutia Fadilla
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.430

Abstract

Packaging serves as a food storage system that protects food and goods from natural processes and facilitates ease of transportation. This study aimed to address the problems related to cassava chip packaging, such as inappropriate sizes and packages that are prone to breaking, by applying Quality Function Deployment (QFD) in designing packaging that meets food safety and quality. Through interviews with customers, the study confirmed the existence of packaging problems and the dissatisfaction expressed by customers regarding the product packaging. QFD was employed to determine consumer needs and desires for a product design that conforms to quality characteristics and technical requirements. The study also used a consumer assessment questionnaire to identify the most important product attributes and design requirements that meet consumer expectations. The study found that rectangular packaging shapes, bright colored primary packaging colors, polypropylene plastic packaging materials, the location of the logo on the packaging in the middle of the package square, four, light color, and an image of sweet potato chips on the logo are factors that influence product packaging design that meets food safety and quality. This study's findings can be useful for practitioners and researchers in designing packaging that meets consumer expectations, as well as for promoting food safety and quality.
Daily Activity of Teuku Umar University Students Going to Campus firzan firzan; Irfan Irfan; Samsunan Samsunan; Rahmat Djamaluddin; Deni Ilham Yani
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.438

Abstract

Teuku Umar University (UTU) is a public university located in West Aceh Regency. The number of active students at UTU was recorded as 6,636 in the academic year 2021-2022. Currently, the UTU campus lacks public transportation serving its vicinity. This study aims to identify the daily activities of UTU students in commuting to the campus and to determine the extent of students' response to the implementation of public transportation services within a ±5 KM buffer zone from the UTU campus. This research utilizes two types of data analysis methods, namely qualitative descriptive and quantitative descriptive. The research findings indicate that 93.5% of students strongly agree with the concept of implementing public transportation, and 75.3% of students agree to switch from private vehicles to public transportation. The majority of daily travel activities are conducted by female students, accounting for 54% compared to 46% of male students. The modes of transportation used to reach the campus are motorcycles (56%), bicycles (6%), and walking (38%). Regarding the frequency of departure times to the campus, 41% of students depart at 08:00 AM, 23% at 09:40 AM, 15% at 10:30 AM, 12% at 11:20 AM, 6% at 01:50 PM, and 3% depart at 04:20 PM. As for the frequency of return times, 16% return at 01:30 PM, 21% at 11:20 AM, 34% at 01:50 PM, 10% at 03:30 PM, 16% at 04:20 PM, and 3% return at 05:10 PM. Based on this study, we recommend developing a dedicated public transportation service concept for UTU students. Data on students' daily activities can serve as crucial input for the future development of public transportation projects.
Experimental Study on Utilizing Polyethylene Terephthalate Waste as a Substitute for Coarse Aggregate in the Production of Lightweight Concrete Yulius Rief Alkhaly; Yovi Chandra; Lis Ayu Widari
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.436

Abstract

Concrete is a building material that consists of a mixture of aggregate and paste. Normal concrete has a unit weight of 2200 kg/m3 to 2500 kg/m3. In addition to normal concrete, lightweight concrete is also known which has a unit weight of less than 1900 kg/m3. The research was conducted to produce lightweight concrete by using aggregate from polyethylene terephthalate (PET) plastic waste as a substitute for coarse aggregate. This study used 40 cylindrical samples of 150 mm x 300 mm with variations in the use of PET aggregates of 25%, 50%, and 100% of the volume of coarse aggregate. The results show that the use of PET aggregates produces concrete with a decrease in compressive strength of 26%–39% and a decrease in water absorption of 2%–32% from normal concrete. Ultrasonic Pulse Velocity (UPV) testing showed that the concrete with PET aggregates had a lower wave propagation velocity compared to normal concrete. Moreover, Schmidt hammer and splitting tensile test showed that concrete with PET aggregates had lower rebound number and split tensile strength compared to normal concrete. PET substitution percentages of 25% and 50% resulted in unit weights of 2218 kg/m3 and 2102 kg/m3, respectively, which rule out the use of lightweight concrete. However, 100% PET substitution has a unit weight of 1855 kg/m3 with a compressive strength of 14.16 MPa, which can be categorized as moderate structural lightweight aggregate concrete.
Methyl Orange Absorption Using Chitosan from Shrimp Skin as an Adsorbent Meriatna Meriatna; Sanda Mulia Utari; Rizka Mulyawan; Muhammad Muhammad; Zulmiardi Zulmiardi
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.431

Abstract

In the coloring process, the textile industry generally uses synthetic (artificial) dyes, methyl orange (MO). In this study, the adsorption of methyl orange (MO) dye with chitosan was investigated in a series of batch laboratory studies. The adsorption equilibrium study used a MO solution with a concentration of 10 to 50 mg/L with an adsorbent weight of 3 g put into an Erlenmeyer and shaken until the adsorption reached an equilibrium condition. Meanwhile, the adsorption kinetics used a MO solution with an initial concentration of 10 and 20 mg/L with a volume of 100 mL with an adsorbent weight of 3 g and the solution was adjusted to pH 2. Effective operating parameters such as pH, initial concentration of dye (C0) and contact time at adsorption has been investigated. The results showed that the adsorption capacity of methyl orange (MO) dye from chitosan increased with an increasing acid content, and it was found that a solution of pH 2 was the optimal pH value for MO adsorption. The adsorption parameters for the Langmuir and Freundlich isotherms were determined by nonlinear regression and the equilibrium data were best explained by the Langmuir isotherm model, this was indicated by the high value of the correlation coefficient (R2), which was 0.9595. The maximum adsorption capacity was 0.1297 mg/g. Adsorption kinetics can be successfully applied to pseudo second-order kinetic models. The pseudo second-order model results show that the adsorption process is controlled by chemical sorption (chemisorption).
Tensile Strength Comparison of Polymer Composite Materials Reinforced by Three Types of Bamboo Fiber Treated With 5% aq. NaOH Solution Ahmad Nayan; Muhammad Yusuf; Deassy Siska
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.322

Abstract

The specimens were prepared with polyester polymer reinforced with natural fiber from three types of bamboo, namely Gigantochloa Apus, Bambusa vulgaris, and Bambusa blumeana. Their tensile properties were compared and investigated. In this paper, the specimen utilization of hand-wet layup processes of polyester resin with natural fibers. The fibers were treated with 5% NaOH solution to remove hemicellulose and create better debonding between matrix and fiber. Bamboo-reinforced composite of 3 types of bamboo with fractions 60% volume is thorn bamboo, Bambusa vulgaris, Gigantochloa Apus, and bamboo wipe without alkali. Of the three types of bamboo, the highest tensile strength of Gigantochloa Apus was soaked using NaOH with an average value of 37.06 MPa, with a tensile strain of 4.11%. In contrast, the lowest tensile strength value is Gigantochloa Apus which was not immersed in NaOH with an average of 13.79 MPa, a tensile strain of 2.54%. This matter shows the effect of immersion on tensile strength bamboo fiber composite. The results of the tensile strength of each type of bamboo obtained in this research, among others, bamboo thorn's tensile strength of 22.81 MPa, Bambusa vulgaris tensile strength of 16.69 MPa, bamboo apus 37.06 MPa, and Gigantochloa Apus without alkali 13.79 MPa. The observations show that Gigantochloa Apuscomposites are suitable for use as alternative tensile materials.
Study of Adsorption of Lead Metal (Pb) Using Chemically Acti-vated (Nypa Fruticans) Powder Biosorbent Meriatna Meriatna; Lukman Hakim; Masrullita Masrullita; Zulmiardi Zulmiardi; Suri Atika
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.443

Abstract

Heavy metal contamination in the environment is now quite concerning, and it is hazardous if it enters the body. Continuous human interaction with heavy metal lead (Pb) will result in various health problems. Nipa palm is a palm (Palma) thrives in mangrove forest habitats or along the seashore, with a cellulose content of 35.1%, 26.4% hemicellulose, and 17.8% lignin. This research aims to see if palm fronds (Nypa fruticans) can be used as a biosorbent to remove the heavy metal Pb in artificial solutions. The analysis was carried out in phases, beginning with the creation of biosorbents from Nipah fronds by decreasing their size to powder and drying them in the sun, followed by analyzing the efficacy of the biosorbents and the number of functional groups using the FTIR instrument. The research was carried out by varying the particle size of the nipa palm frond adsorbent, namely 40, 60, and 80 mesh, as well as contact times of 30, 60, 90, and 100 minutes, to determine the level of adsorption absorption and the adsorption mechanism using the Langmuir and Freundlich isotherm equation approach. The Pb solution used had a concentration of 20 ppm. The results showed that the maximum metal absorption level was 99.29% at a particle size of 80 mesh with a contact time of 100 minutes. The absorption mechanism is close to the Langmuir isotherm equation with R2 = 0.9998. It is suspected that the adsorption process occurs in one layer (monolayer) of the adsorbent.
Comparison of Music Genre Classification Results Using Multilayer Perceptron With Chroma Feature and Mel Frequency Cepstral Coefficients Extraction Features Rina Refianti; Faradilla Mahardi
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.444

Abstract

The development of digital music, especially in genre classification has helped in the ease of studying and searching for a song. There are many ways that can be used to classify the songs/music into genres. Deep Learning is one of the Machine Learning implementation methods that can be used to classify the genre of music. The author managed to create a deep learning-based program using the MLP model with two extraction features, Chroma Feature and MFCC which can classify song/ music genres. Pre-processing of the song is done to take the features of the existing value then the value will be incorporated into the model to be trained and tested. The model was trained and tested with data of 3000 songs which were divided into 10 genres. The model was also tested using the Confusion Matrix with 600 songs of the total available data. The models with Chroma Features as extraction features have an accuracy rate of 53 %, while the MFCC extraction features have an accuracy rate of 80.2 %.
Workforce Design And Employee Workload Using The Full-Time Equivalent Method At PT XZY Amri Amri
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.445

Abstract

One of the factors that affect employee performance is workload. If employees are given too much work, problems will arise. For example, some representatives have too high responsibilities ( overloaded ), while other workers have small responsibilities ( underloaded ). This kind of problem also occurs at PT. XZY,  so it is essential to research the status of responsibility, which can then be used to design the Number of employees. The workload of each station is calculated using the Full Time Equivalent (FTE) method, which converts workload hours into the Number of people needed to complete a particular task. From the results of the review, it was found that there were deviations in responsibility at five workstations where three stations had overloaded workloads or values between 1.28 found at the wedding, cutting, and packing stations. A further two stations have standard work with values 1-1.28 found at co-gas filling stations and packaging and vacuum. The findings show that 18 employees are the ideal workforce. Changing the composition of the Number of workers according to the calculation of the optimal Number of workers can improve employee performance. The manuscript should contain an abstract. The abstract should be self-contained and citation-free and should not exceed 250 words. The abstract should state the work's purpose, approach, results, and conclusions. The author should assume that the reader has some knowledge of the subject but has not read the paper. Thus, the abstract should be intelligible and complete (no numerical references); it should not cite figures, tables, or sections of the paper. The abstract should be written using the third person instead of the first person.
Synthesis and Characterization of Chitosan-Pectin-Citric Acid-Based Hydrogels for Biomedical Applications (Primary Wound Dressings) Suryati Suryati; Rizka Mulyawan; Sulhatun Sulhatun; Muhammad Muhammad; Nikmat Wanda
International Journal of Engineering, Science and Information Technology Vol 3, No 2 (2023)
Publisher : Department of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52088/ijesty.v3i2.447

Abstract

This study aims to analyze the processing of chitosan-pectin biocomposite hydrogel with the addition of citric acid to improve the quality of the biocomposite for primary wound dressing applications. The method is printing the biopolymer solution in a glass mold, then drying at 50oC. Chitosan 90.2% DD and pectin dissolved in 1% acetic acid with a ratio (w/w) of 50:50. The two ingredients were mixed using a magnetic stirrer at room temperature for 30 minutes until completely dissolved, then added citric acid crosslinking agent with various concentrations of 2,4, 6,8,10 (%). The test results for the characteristics of the chitosan-pectin-acid biocomposite Citrate obtained the best thickness in the composition variation (50:50:8) of 0.31 mm. The analysis results of the best absorption of the chitosan-pectin-citric acid biocomposite on the composition variation (50:50:6) were 185%. In the swelling analysis of the chitosan-pectin-citric acid biocomposite, the variation in composition (50:50:10) was 403%. The tensile strength test results of the chitosan-pectin-citric acid biocomposite decreased with the addition of citric acid, the best obtained was 20.76 MPa, and the best elongation was 76.0%. Test results for the functional group of the chitosan-pectin-CaCl2 biocomposite for the presence of O-H, C-H, N-H bonds in the fact of O-H, C-H, N-H bonds at a wavelength of 4000-2500 cm-1, C=O, C=N, C=C at a wavelength of 2000 -1500, and the specific absorption of the chitosan-pectin-citric acid biocomposite 400-1400 cm-1 indicates that the resulting membrane tends to be polar, hydrophilic and environmentally friendly because it can be degraded. Based on the expected test results, it was shown that the chitosan-pectin-CaCl2 biocomposite has the potential to be applied as an ideal primary wound dressing for wound healing and protection.

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