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Jurnal Teknologi

Teknologi
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Published by Universitas Putra Indonesia YPTK Padang

ISSN : 23014474 EISSN : 25411535 DOI : https://doi.org/10.35134

Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Engineering Industrial & Manufacturing Engineering

Jurnal Teknologi The scope areas covered by the journal are Chemical & Bioprocess Engineering, Civil & Architecture Engineering, Computer Engineering, Electrical & Electronics Engineering, Industrial Engineering, Marine Engineering, Material & Metallurgical Engineering, and Mechanical Engineering. Additionally the aim of the journal focuses on publishing scientific articles from research results and analytical studies in the fields: - Economics - Computers - Technologies, and related fields as well as interdisciplinary between these fields.

Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)

Articles 74 Documents

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Product Development using Kansei Engineering to Re-design New Food Packaging Nanang Fatchurrohman; Mutiara Yetrina; Rifki Muhida; Anggi Hidayat
Jurnal Teknologi Vol. 12 No. 1 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

In the era of high market competition, product development must implement excellent innovation and responsiveness toward customer needs. One of the tools that had been successfully applied to support this objective is Kansei Engineering. Kansei is a Japanese word that refers to perception, impression, and feeling. Kansei Engineering is the process to collect product information based on the psychological emotions and feelings of customers. These represent customers' general impressions and emotions towards certain products or services which are then translated into characteristic designs. In this research, the researcher uses the Kansai engineering is applied to design new packaging for West Sumatra Sanjai Chips produced by local small-medium enterprise (SME). In processing the data, the researcher carried out a sampling technique, determining the number of respondents with the number of respondents being 100 in the first stage and 15 respondents in the second stage. From the first stage, eight Kansei words were collected. Followed by the second stage which was able to classify the most significant Kansei words based on the customer opinions. It was demonstrated from the investigation that new packaging was designed. With the new design it is expected that customers will become more aware and attracted to purchase the product.

Analisis Kualitas Crude Palm Oil Menggunakan Seven Tools dan Kaizen Beni Harma; Mohammad Farid; Susriyati; Eriesta Putri Miliandini
Jurnal Teknologi Vol. 12 No. 1 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

The main purpose of processing palm oil is to produce Crude Palm Oil (CPO) and reduce fossil fuels. In January-June 2021, the CPO produced does not meet the company's quality standards that have been agreed with consumers. Under these conditions, it is necessary to carry out production analysis activities to measure the quality of CPO, using Seven Tools method and apply the Kaizen concept. Which aims to improve the quality of CPO and improve the work system at an oil palm plantation and processing in West Sumatra. Based on the results of the analysis of CPO quality using the Seven Tools method, it is known that the low quality of CPO is caused by 3 factors, namely free fatty acid content, water content and dirt content. Where from the calculation results using the Seven Tools, the highest level that affects the low quality of CPO is the Free Fatty Acid (ALB) content which happened 20 times, followed by 15 times the dirt content and 11 times the water content in the mentioned time period. The proposal for improving the work system with the Kaizen Concept uses the 5W+1H and PDCA methods, namely, collecting fruit right after harvesting and processing oil palm fruit quickly. In order not to accumulate in a long time, the fruit sorting process is carried out carefully so that the oil palm fruit is processed according to predetermined standards, providing training based on the employee's work division so that problems do not occur, employees are encouraged to take advantage of the rest time well, so that when working can concentrate, perform inspections and maintain overall cleanliness.

Analysis of Productivity using The Marvin E. Mundel Method Meldia Fitri; Zefri Yenni; Celvin Adryanda
Jurnal Teknologi Vol. 12 No. 1 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

This study addressed the measurement of total productivity and the measurement of productivity for every input with the use of the method of Marvin E. Mundel. Then give the proposal on how the method enhancement productivity. The case study chosen involved a company in bread production in the urban area in the City of Padang, West Sumatera, Indonesia. These results prove the total productivity of the company tends abnormal, with the highest total production in March of 3.28% and the lowest total productivity in May was -6,07%. For results measurement productivity on input, the value is on income employee highest productivity in December was 15, 56%, and the lowest productivity in March amounted to -3,78%. Energy’s highest productivity in April was 11.48%, and the lowest productivity in May amounted to -13,08%. Raw ingredients' highest productivity in April was 11.23%, and the lowest productivity in May amounted to -7,28%. Depreciation cost’s highest productivity in August was 29.96%, and otherwise, the lowest productivity in May amounted to -79,46%. Transportation's highest productivity in December is by 15,56% as well as otherwise the lowest productivity in April amounted to -3,78%. And for enhancement of productivity with method give a proposal on each input. The conclusion from the productivity measurement on the company tends to be not stable. Productivity on value energy, raw materials, and costs depreciation experience a very significant decrease so that the need enhancement productivity with a suggestion for each input.

Beban Kerja Tubuh Manusia menggunakan Metode Recommended Weight Limit dan Lifting Index Dedi Lesmana
Jurnal Teknologi Vol. 12 No. 1 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

The purpose of this study is to determine the factors that affect movement, correct body posture in doing work so that injuries do not occur at work and the maximum load that can be lifted by workers. The case study was conducted in a rubber processing industry The calculation of the Recommended Weight Limit (RWL) for each worker in the lifting of rubber raw materials and lifting to weighing has a weight range of 30-50 kg in each lift. Documentation results obtained from horizontal distance (H), vertical distance (V), asymmetric angle (A), load starting point (D), number of loads lifted per minute (F), moment of force (C). In the results of the RWL calculation, the recommended weight of the load is between 11.06 kg and 21.24 kg. The recommended weight of the load for workers in the lifting of rubber raw materials and lifting to weighing is based on the calculation of the Recommended Weight Limit (RWL), the level of risk based on the provisions of the National Institute of Occupational Safety and Health (NIOSH) Lifting Index is that the effect of back injury is still identified when viewed from the calculation results of the Lifting Index (LI) value. The LI value for workers is more than 1 (one) so it needs immediate repair. Workload solutions that can be applied to the lifting of rubber raw materials and lifting to weighing are reducing the weight of the load and improving work methods.

Investigasi Kepuasan Pelanggan dan Kualitas Pelayanan Menggunakan Metode Servqual dan Kano Muhammad Candra Nugraha
Jurnal Teknologi Vol. 12 No. 1 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

The purpose of this study was to determine the level of customer satisfaction of a coffee business in Padang, West Sumatra. The method used is Servqual and the measurement of service quality is the Kano method. This study explores the quality of service that has an impact on customer satisfaction at a coffee business in Padang. The type of data in this study is primary data in the form of a questionnaire that has been distributed to respondents. The number of samples in the study amounted to 100 respondents. The results of the study show that0 with the Servqual method, it is found that the gap scores for 27 service attributes measured in this study produce a negative value, and 1 service attribute produces a positive value. There are 24 one-dimensional attribute categories, which means that consumer satisfaction is proportional to the performance of the attributes. The higher the attribute performance, the higher the customer satisfaction. And 3 attributes of the reverse category, which means the degree of customer satisfaction is higher if the service does not exist.

Deteksi Tepi untuk Mendeteksi Kondisi Otak Menggunakan Metode Prewitt Irzal Arief Wisky; Sumijan
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

The brain is an organ that is in the head as a controller of all functions of the human body, thus enabling humans to think and solve problems. Brain health conditions are very important in keeping the body's functions running properly. Several diseases can adversely affect brain health, such as cancer, tumors, meningitis, encephalitis and other brain diseases. Brain conditions can be identified through Magnetic resonance imaging (MRI). This study aims to identify brain conditions based on Brain Edge Detection on MRI images. The technique used is Prewitt method. The stages of the process carried out in edge detection begun with the pre-processing process in reducing the noise contained in the MRI image. The number of MRI images tested was 25. The results of this study can localize the edges of the image very well. The accuracy of this study is 85%, so this research can be recommended in identifying brain organs.

Mengidentifikasi Kanker Ginjal Menggunakan Metode Robert, Canny, dan Sobel Dhio Saputra; Sumijan
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Kidneys are organs that function to filter metabolic waste in the blood and dispose of them in the form of urine. One of kidney disease is kidney cancer. Kidney cancer occurs due to gene mutations in kidney cells that cause kidney cells to grow abnormally and uncontrollably. To take an image of kidney cancer using a Magnetic Resonance Imaging (MRI) tool. The purpose of this research is to identify and recognize the pattern object of kidney cancer in the MRI image. To identify kidney cancer images, it begins with collecting image data, image processing, image edge detection, image thinning, and identification processes. Edge detection is used to detect the boundaries of objects in the image. The method used in this research is the Canny and Sobel method. The number of images taken were 23 images of kidney cancer samples. The results of this research show that the Canny method gives better image results than the Sobel image results

Investigation of Metal Matrix Composites Aluminium Reinforced Graphite Particles Produced Using Powder Metallurgy Nanang Fatchurrohman; Anis Nabilah Binti Mamat; Mutiara Yetrina; Rifki Muhida
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Many industries have been in demand for metal matrix composites (MMC), especially in the aerospace and automotive sectors. The advancement of MMC is being investigated to improve the material's mechanical properties. MMC is a composite material consisting of at least two materials. One of them would act as a matrix, and the other materials would serve as reinforcement. MMC allows for overcoming the specific limitations of metallic and ceramic materials by blending their mutually exclusive property profiles. The main objective of this research is to successfully fabricate aluminium and graphite metal matrix composites using powder metallurgy. In this research, powder metallurgy was used, where aluminium and graphite were blended according to the sample volume ratio. Both graphite and aluminium were in the form of metal powder. Graphite powder with each ratio of volume percentages of 0%, 1.5%, 3%, 4.5%, and 6% was mixed with aluminium powder. The blended material is produced by powder metallurgy via the compaction process using the hydraulic press brake machine. Subsequently, the compacted sample was sintered using a laboratory furnace at 600°C for 4 hours. The mechanical tests show that the highest tensile strength and Young's modulus were obtained by MMC aluminium – 1.5 % volume graphite. While for the highest hardness was achieved by aluminium – 4 % volume graphite.

Perancangan Sistem Pengendalian Suhu Air Pada Shower Therapy Dengan Fuzzy Logic Eko Arianto
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

Therapy is a form of health service to develop, maintain, and restore body movement and function by using manual handling and equipment. One of the therapies that many people need is for relaxation and reducing fatigue. One alternative is to use water as a medium (hydrotherapy). The pressure and temperature of the water used for shower therapy has been shown to provide physiological changes in humans. Shower therapy with warm water is strongly influenced by room temperature. The difference in outdoor air temperature (room) with the temperature of the water for bathing is very large will cause serious physiological problems. Therefore, to prevent the risk of differences in room temperature and water temperature being too large when bathing and/or shower therapy, a water temperature control system is needed that can maintain the temperature difference at a certain level. With a fuzzy logic controller system, the water temperature will be able to be controlled to adjust the outdoor air temperature (room). By adjusting the value of delta (∆) outside air temperature and water temperature, extreme temperature differences can be handled. The prototype of the water temperature control system in shower therapy with fuzzy logic has been successfully created with minimal functions with a water mixer system using solenoid valves. The water mixer can work at a minimum with the water temperature output which is still unstable and less accurate with a fairly high deviation. Setting the value of ΔT >5 produces a more stable water temperature output with an average deviation of <10%. The effect of pressure and water flow has not been seen and has not been observed.

Optimization of 3D Printing Parameters Using the Taguchi Method to Improve Dimensional Precision Martinus Bagus Wicaksono; Felix Krisna Aji Nugraha
Jurnal Teknologi Vol. 12 No. 2 (2022): Jurnal Teknologi
Publisher : Universitas Putra Indonesia YPTK Padang

The combination of parameters in the product printing process with Polylactic Acid (PLA) material using the ANET ET4 PRO 3D printer is carried out to obtain optimal parameters to produce accurate dimensions in the printing process. The most popular type of 3D printer is the Fused Deposition Modeling (FDM) type, which uses melted plastic raw materials to form products. In the existing printing process, the accuracy of the dimension is the main problem owned by users of this 3D printer technology. Especially when these products have to be assembled into a mechanism. The resulting accuracy is greatly influenced by the selection of process parameters used during the printing process. The parameter optimization process using the Taguchi method was chosen because this method is very good at overcoming deviations from the target so that the best quality of the product can be achieved. The optimization process of this parameter will be carried out using a ring-shaped specimen with an outer diameter of 30 mm, an inner diameter of 20 mm, and a height of 20 mm. This deviation in the size of the inner diameter of the ring would be the reference for measuring the quality of the printed object. From the experiments, the most optimal level values for each factor were as follows: the Nozzle Temperature was 200 °C, the Bed Temperature was 62 °C, the Room Temperature was 34 °C, the Infill Percentage was 40%, the Layer Height was 0.25 mm, the Printing Speed was 20 mm⁄s.

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Contact Name
Nanang Fatchurrohman

Contact Email
nanangfatchurrohman@upiyptk.ac.id

Phone
+6288271008259

Journal Mail Official
nanangfatchurrohman@upiyptk.ac.id

Editorial Address
Kampus Universitas Putra Indonesia YPTK Padang Jl. Raya Lubuk Begalung Padang, Sumatera Barat - 25221

Location
Kota padang,

Sumatera barat

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Nanang Fatchurrohman

Contact Email nanangfatchurrohman@upiyptk.ac.id

Phone +6288271008259

Journal Mail Official nanangfatchurrohman@upiyptk.ac.id

Editorial Address Kampus Universitas Putra Indonesia YPTK Padang Jl. Raya Lubuk Begalung Padang, Sumatera Barat - 25221

Location Kota padang, Sumatera barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

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Abstract

Contact Name
Nanang Fatchurrohman

Contact Email
nanangfatchurrohman@upiyptk.ac.id

Phone
+6288271008259

Journal Mail Official
nanangfatchurrohman@upiyptk.ac.id

Editorial Address
Kampus Universitas Putra Indonesia YPTK Padang Jl. Raya Lubuk Begalung Padang, Sumatera Barat - 25221

Location
Kota padang,

Sumatera barat

INDONESIA