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Gigih Priyandoko
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jsae@widyagama.ac.id
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jsae@widyagama.ac.id
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Kota malang,
Jawa timur
INDONESIA
JOURNAL OF SCIENCE AND APPLIED ENGINEERING
Published by Universitas Widyagama
ISSN : 26213753     EISSN : 26213745     DOI : -
ournal of Science and Applied Engineering (JSAE) is an open access peer-review journal, and is aimed to disseminate original research in all fields of Electrical Engineering, Mechanical Engineering, Civil Engineering, Industrial Engineering and Informatics Engineering and presents the latest development and achievements in scientific research in Indonesia and overseas to the world’s community. Only original, innovative and novel papers will be considered for publication in the JSAE. The authors are required to confirm that their paper has not been submitted to any other journal in English or any other language. The JSAE welcome contributions from all who wishes to report on new developments and latest findings in science and applied engineering.
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Articles 6 Documents
Search results for , issue "Vol 4, No 2 (2021): JSAE" : 6 Documents clear
Landslides Risk Analysis on Pacitan – Ponorogo National Road Section of East Java Province Achmat Insana Masruchi Indroyono; Aji Suraji; Agus Tugas Sudjianto
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 4, No 2 (2021): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v4i2.3050

Abstract

Landslide is a natural event that at this time the occurrence is increasing. Landslide natural disasters can occur due to land use patterns that do not follow the rules of environmental sustainability, such as deforestation and the collection of natural resources that exceed their carrying capacity. This research was obtained that the threat, vulnerability of landslides on the national road section of Pacitan - Ponorogo obtained from the results of risky analysis is a very high risk. The result of the risk of very high level of Landslide is found at km 13+900 - 14 +000, km 12+500 - 12+600, km 27+201 - 28+051, km 27+200 - km 27+300, km 33+300 - 33+500, km 12+500 - 13+500. The level of Landslide risk on the Pacitan – Ponorogo National road is very varied, some are medium risk, medium risk, high risk to very high risk. Landslide handling techniques on the National road section of Pacitan - Ponorogo to be more effective and efficient because the conditions and value of Landslide risk are different, it will be better to handle in accordance with the level of Landslide risk in each location.
Recycling Oil Palm Industry Waste: Sustainable Solid Waste Treatment Utilizing Bioconversion Agent Leo Hutri Wicaksono; M G Arrahim; A. R. Fadhillah
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 4, No 2 (2021): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v4i2.3051

Abstract

Oil palm is one of Indonesia's most important crops. Indonesia produces 47.180 million tonnes of CPO from an area of 14.858.300 hectares. When there are a lot of CPOs, it suggests there are a lot of wastes. EFB (Empty Fruit Bunch) is a significant biomass by-product of the oil palm industry. These cellulosic materials are relatively inexpensive feedstocks for ethanol synthesis and have no problem with the food supply because they are abundant and outside the human food chain. The principal by-product of the palm kernel oil extraction process is palm kernel meal (PKM). It's a high-fiber, medium-protein feed that's best suited for ruminant or rabbit consumption. EFB was once utilized as a fuel to generate steam at mills, whereas PKM was recycled into animal feed. Another option is to use bioconversion to control these wastes. The Black Soldier Fly (Hermetia illucens) larval (BSFL) is a worldwide insect whose larvae are notable for their capacity to eat a variety of organic wastes. The BSFL were housed in a container and fed EFB and PKM. There were two different treatment options (3 replication per treatments). Each treatment contained 200 larvae and 400 grams of food. The research lasted 18 days. The larvae were collected on the 18th day, and container were measured. Treatment 1 (EFB) have average 9,46% waste consumption, and Treatment 2 (PKM) have 23,14% waste consumption on average.
Analysis of Factors Affecting Industrial Engineering Students' Learning Interest in the Online Lecture System Sarbini Sarbini; M. Baidawi
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 4, No 2 (2021): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v4i2.3052

Abstract

The COVID-19 pandemic has forced universities, lecturers, and students to suddenly migrate from face-to-face learning to online learning. in early 2020 these three components must adapt to the situation, but after 2 semesters of adaptation had taken place, the factors that influenced students in attending online lectures are the factor of lecturers and students’ adaptability to the software used, the factor of phone signal in the area where the students live, and the factor of limited funds for data. These factors will affect the students’ comfort factor and shape their interest in the online learning system. This research used a sample of Industrial Engineering students to produce the factors that influence learning interest in the online system. From the descriptive data analysis, it reveals that students perceive lecturer adaptation to online learning as quite good, the quality of the network as tolerable, although there are areas where the internet signal is considered weak. The students’ experience of online lectures is a little less satisfactory. The highest scores of students' expectations for future teaching system are: 48% for a 50% online and 50% offline system, 75% for a pure offline system, and 25.6% for a 25% online system. The relationship between students' perceptions of the adaptability of lecturers, internet quality and their experiences of online lectures affect the student’s comfort in online lectures in the form of a linear regression.
Mixed Characteristics of Activated Charcoal Ori Bamboo and Red Ginger as Air Purifier on Food Cabinets S. Astuti; F. E. K. Rastini; E. Priskasari; D. H. Praswanto
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 4, No 2 (2021): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v4i2.3117

Abstract

Most of the community while preservation of food using refrigeration machines and chemicals, which less attention to hygiene. The storage space made of wood, glass or plastic where are almost airtight except the refrigerators which have poor air circulation and it cause of cross-contamination and also triggers bacteria growth, virus and fungi that cause decay and also disease source. These problems encourage the researchers to make a hygienic food storage space by consider the air circulation which is given an air purifier natural ingredients combinations that absorb pollutants, heavy metals, and anti-microbials. The air purifier ingredients which expected are original bamboo charcoal active, and red ginger. To make the air purifier can work effectively, a certain balanced composition is needed. The research method used is an experimental method where food ingredients are stored in a space where the air circulation is coated with a particle layer of original bamboo charcoal activate and red ginger rhizome with different compositions. The material used are mixture of charcoal and ginger rhizome by making an air purifier derived from activated charcoal from ori bamboo waste at a certain percentage of charcoal maturity. After that the product will be tested in food storage space with tofu for the food sample. In this research, the composition combination of ori bamboo charcoal active with red ginger extract was 4:0, 3:1, 2:2, 1;3, 0:4 where the ori bamboo charcoal active was used with a maturity percentage of 50%, 75%, 100 %. From the results of the research, it was found that the samples stored without using the filter grew with microbes after the second day, the samples that were filtered with the composition of activated charcoal only grew microbes on the third day and there was a change in the shape of the filter, namely the aqueous filter. Samples with a composition of activated charcoal with varying maturity and ginger extract began to grow with microbes after the fourth day. The best filter results using 100% mature activated charcoal with a composition of activated charcoal and ginger extract, which is 2:2. Microbes that can still grow in that composition are Bacillus substilis but in small quantities and no viruses or other microbes are found.
Empowering Traditional Education Institution Through the Implementation of Potable Water Provision System Rini Nur Hasanah; Ainul Hayat; Moh. Farid Rahman; Zainul Abidin; Hadi Suyono
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 4, No 2 (2021): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v4i2.2975

Abstract

The activity reported in this journal was aimed to empower the traditional education institutions commonly found and not formally financed by government of Indonesia. Empowering was carried out through the implementation of an action plan to ensure the potable water provision. Clean as well as potable water is indispensable for daily life and activities of students and teachers, especially those who were living and boarding in the school complex. The action was also potential to improve the financial independence of organization and to develop the entrepreneurship skills of students. The obtained tangible results of the action were in the form of production facility with ready-to-drink water quality of less than 10 ppm (parts per million) of total dissolved solids.
Travel Time Behavior Study of Malang-Denpasar Intercity Bus Considering Sailing Time of Ketapang-Gilimanuk M.i Fatkhurrozi; D. K. Sudarsana; D. Yuniar; A. Suraji
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 4, No 2 (2021): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v4i2.3084

Abstract

The study intends to acquire travel time behavior needed by Malang-Denpasar intercity bus (AKAP) considering sailing time of Ketapang-Gilimanuk. This research is a new thing to find out the inter-city bus travel time between islands. Where in this study the bus route connects the island of Java with the island of Bali. The interesting thing is that the travel time during the crossing at the port is part of the overall travel time identification. In addition, the presentation method using a trajectory table for inter-city bus travel routes is a more interesting presentation. Travel time of the bus is achieved by moving observer method (actual survey) where the surveyor is on the bus to track the travel. Interview is also conducted to get the experience of the respondents. The results are displayed in trajectory curve to present travel speed in each segment. In this study there are limitations that were carried out due to limited resources. This survey was only conducted in one round trip and 2 surveyors were mobilized. And what was noted during the survey was more about the travel time aspect. The results of this study provide an overview of travel time in outbound and inbound. In addition, the delay time that occurs during the trip is also identified. Actual survey shows that outbound journey is longer (13.9 hours) than inbound (11.13 hours). Delay time of outbound is 3.16 hours while that of inbound is 1.28 hours. Interview results longer travel time than that of actual survey. While sailing time of Ketapang and Gilimanuk harbour satisfies the minimum standard.

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