Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

International Journal of Natural Science and Engineering

IJNSE
Website

Published by Universitas Pendidikan Ganesha

ISSN : 26151383 EISSN : 25496395 DOI : -

Core Subject : Engineering,

Engineering

International Journal of Natural Sciences and Engineering (IJNSE) is an independent, quarterly basis online & print version, open access, peer reviewed, non-profit journal that publishes original research, short communications, review articles or essays, and book reviews relevant to Natural Sciences and Engineering. IJNSE is published by the Universitas Pendidikan Ganesha (Undiksha), Indonesia.

Arjuna Subject : -

Articles 216 Documents

14 15 16 17 18

Analysis of the Factors that Cause Dengue Hemorrhagic Fever (DHF) Using Chi-Square Automatic Interaction Detection (CHAID) Syahdan, St; Arif, Abdul; Megawati, Megawati
International Journal of Natural Science and Engineering Vol. 5 No. 3 (2021): October
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

The low level of public awareness of environmental cleanliness has led to the spread of dengue hemorrhagic fever (DHF). This study aims to identify and analyze the factors that cause dengue hemorrhagic fever (DHF) using the Chi-Square Automatic Interaction Detection (CHAID) method. This type of research is applied research, namely research conducted to apply, test, and evaluate the ability of a theory that is applied in solving practical problems. This research was conducted at the University of Kaltara by taking quantitative data on dengue hemorrhagic fever (DHF) patients recorded at the Bulungan District Health Office. The analytical method used is the Chi-Square Automatic Interaction Detection (CHAID) tree-structured classification method with the Statistical Package for the Social Sciences (SPSS) program. Based on the study results, it was found that five factors caused the occurrence of dengue hemorrhagic fever (DHF) in Bulungan Regency. They are Gender, Age, Work Status, Environment, and Household Income. Based on the CHAID analysis using the IBM SPSS Statistics computer program, a decision tree is formed, which consists of 5 nodes consisting of 1 main node (node 0), one decision node (node 1), and 3 terminal nodes (node 2, 3 and 4). The predictor variables that affect the formation of the decision tree are Age and Household Income. DHF patients can be classified into three different segments from the segmentation decision tree with an estimated risk of 0.273, which means the risk of the wrong classification for DHF status is 27.3%.

The Impact of Using Salt on Drying Rate of Fish Delima, Rika; Sahira, Safinaz; Sumiroyani, Sumiroyani; Kamelia, Kamelia; Reskiana, Reskiana; Rahmi, Khusnul Aulia; Marta, Eni
International Journal of Natural Science and Engineering Vol. 5 No. 3 (2021): October
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Fish drying by using additional salt as a preservative and adding flavor to the fish. This study aims to determine the effect of various doses of salt on the quality of tilapia, motan, dried salted lemongrass and the difference that does not use salt on the quality of fish. This type of research is quantitative research with experimental methods. The independent variable in this study was the concentration of NaCl salt as a treatment, namely 10%, 20%, 30% of the total fish weight. The controlled variables of this study were the type of fish, weather conditions, and materials used. The research process begins with weeding motan, tilapia, and lemongrass fish, namely motan fish, tilapia, and lemongrass fish, weighing 100 grams. Then the fish are weeded with running water, removed all the contents of the fish's stomach, and drained until the fish does not contain too much water. Then the addition of salt to the motan fish, tilapia, and lemongrass fish has been given, namely, 27%, 34%, and 41%. The duration of soaking or salting is 24 hours. After the salting time has been completed, the fish drying process is continued. The fish dried at a temperature of 30C to 35C for 2 to 3 days to obtain the desired characteristics of salted fish. Data was collected by testing the salt content in fish with different concentrations. The results showed a difference between salted fish and unsalted fish. Salted fish has a harder texture, taste better, and have a longer shelf life.

Computers and Information Technology as a Source of Learning Media for Elementary School Teachers Monalia, Monalia; Asfiyanti, Nurul Aini; Putri, Syafia Eka
International Journal of Natural Science and Engineering Vol. 5 No. 3 (2021): October
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

The increasingly rapid development of computers and information technology at this time provides benefits and conveniences for teachers and students. It is hoped that the development of computers and information technology can stimulate thoughts, provoke activity, feelings, and attention of students so that the learning process goes well and student and teacher communication runs smoothly. This study aims to determine the development of ICT as a source of learning media. This research is qualitative descriptive research. This type of research is literature review research reviewed from journals taken from e-journals and Google Scholar. The data collection technique used in this research is reading the journals obtained and noting the things needed in this journal. The data validation technique used in this journal is using data source triangulation techniques. Based on the study results, it can be concluded that learning to use computers and information technology has many benefits that can be taken. Make it easier for teachers and students to convey and receive the learning they want to convey. With this ICT, teachers can also do e-learning so that students are more independent with flexible time.

The Effect of Fish Thickness on Dryness Level and Time for Drying Fish Azizah, Nur; Asfiyanti, Nurul Aini; Hasibuan, Melisa; Jannah, Miftahul; Gustari, Rinda; Hasibuan, Riski Sakinah
International Journal of Natural Science and Engineering Vol. 5 No. 3 (2021): October
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Drying fish is one way of preserving fish by reducing the water content so that the activity of microorganisms can be reduced. Preservation by drying is intended to extend the shelf life of fish. The method used in this research is using the experimental method. The data used in this study include data regarding the process, what materials will be carried out in this research. In this study, there were several problems in the drying time of fish. The data collection technique was the implementation of experiments and documentation. The conclusion of this research is sunlight, fish thickness, and drying time affect the drying rate of fish. Fish that get enough sunlight and have a small and thin shape will dry faster than fish with thick meat, such as catfish and catfish. Fish dried without salt and get enough sunlight will usually dry faster than fish given salt. Except for fish that have thick and oily meat usually dry longer. The drying time of fish varies depending on the thickness of the fish and the sunlight it gets.

The Effectiveness of Using Direct Sunlight on the Drying Process of Salted Fish Without Formalin Sabilah, Adina; Khairunnisa, Alda; Monalia, Monalia; Sahriani, Sisi; Putri, Widya Pratama Sri; Lubis, Yusri Amiroh; Marta, Eni
International Journal of Natural Science and Engineering Vol. 6 No. 1 (2022): April
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Salted fish is one of the side dishes that are in great demand by the people of Indonesia. This study aims to analyze the effectiveness of the use of direct sunlight on the drying process of salted fish without formalin. The method used in this research is the experimental method. Where this data collection uses various types of fish to be used as salted fish and there are also some fish that are not salted. The types of fish used in this study were river fish, tilapia, singkek fish, and marine fish. The process of making this salted fish lasts 3-5 days. It depends on the type of fish used and the weather or sunlight during the drying process. The drying process of salted fish that is applied is using direct sunlight or traditionally and does not use chemicals or formalin. The results obtained during drying, fish that do not use salt easily spoil quickly and cannot last long. The smell of unsalted fish is more pungent and the color of the fish also changes. While the fish that is given salt does not smell bad, the color of the fish also does not change.

The Impact of Drying and Salting on the Fish Resilience and Quality Rani, Rani; Sholihah, Nurhidayati; Mutmainah, Fadzilatul; Sopiah, Sopiah; Rahmi, Rahmi; Aisyah, Nur; Marta, Eni
International Journal of Natural Science and Engineering Vol. 6 No. 1 (2022): April
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Drying fish is one way of preserving fish by reducing the water content of fish so that the activity of microorganisms can be reduced. Preservation by drying is intended to extend the shelf life of fish. Many fish species have used the drying method for a long time. This study aimed to analyze the effect of drying on salted and unsalted fish to test the resistance and quality of fish. Making salted fish is the simplest preservation with low cost. The characteristics of fish that have a neutral pH, soft texture, and high nutritional content make fish a good medium for bacterial growth. Most Indonesian people manage fish to overcome the damage, including those processed into salted fish. Salted fish is one form of traditional fish processed products with drying and salting technology. Based on the study's results, it was concluded that salted fish that was dried for more than 12 hours of heating in the sun produced products that were acceptable to consumers, while drying under 8 hours produced products that consumers did not accept. There is a need for further testing on the shelf life and the need for the use of hygienic packaging. Based on the analysis, the concentration of salt and time of salting did not significantly affect the texture and aroma.

The Effect of Traditional Drying on Salted Fish Quality Mira, Mira; Windari, Sulis; Reski, Seri Mulia; Hakiki, Ismi Della; Ishak, Khardianti Alviani; Putri, Lidya Oktavia; Marta, Eni
International Journal of Natural Science and Engineering Vol. 6 No. 1 (2022): April
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Fish is a source of animal protein that is widely consumed by the public. With a high protein content, fish quickly undergo a post-harvest decay process if it is not directly processed into food. In general, what causes fish to rot quickly are bacterial and chemical factors. as for the method used in this study is a qualitative research approach. The purpose of this study was to determine the effect of drying on the quality of fish. The results showed that the drying time of fish depends on the weather and also the size of the fish. Drying using sunlight is widely used because heat energy is abundant and the equipment used is inexpensive. during the drying process cleanliness must be monitored. This study also aims to determine the difference between drying fish using salt and not using salt. The parameters observed were the quality of the fish starting from the texture, color, smell, and content contained in the fish after drying. Drying salted fish is widely available in Indonesia, on a national scale salted fish is one of the fishery products that has an important position. The technique of drying salted fish using sunlight is a common technique carried out in Indonesia with the position of the fish being hung and then placed outside or under the sun.

Workshop Marketplace System Using Rajaongkir API, Leaflet API and Midtrans Payment Gateway Arta, Ketut Nila; Sudana, A.A Kompiang Oka; Putri, Gusti Agung Ayu
International Journal of Natural Science and Engineering Vol. 6 No. 1 (2022): April
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

The automotive shop is a business engaged in the automotive sector that serves vehicle repairs and sales of various kinds of vehicle spare parts. A marketplace is a place for buying and selling or a market that uses internet media. The current marketplace is still very common, making it difficult to find a marketplace that focuses on the automotive sector and difficult to find information about available automotive shops around. The automotive shop marketplace system can help to carry out the process of buying and selling vehicle spare parts and assist in finding various spare parts and information about available automotive shops based on the user's location. This system was developed on a web-based basis using the PHP programming language with the Laravel framework and integrated with the Leaflet API, RajaOngkir API, and Midtrans Payment Gateway as additional features in creating a marketplace. The leaflet API displays a map containing the location of the automotive shop listed on the marketplace. RajaOngkir API provides information about shipping costs to the buyer's place from the seller's place. Midtrans Payment Gateway bridges the payment process carried out by both parties so that it can take place properly. The method used in this research is to use the System Development Life Cycle (SDLC) waterfall method. The results of the research conducted were tested using the black-box method.

Mobile Learning Media for Computer and Based Network at Vocational High School Mayefis, Reska
International Journal of Natural Science and Engineering Vol. 6 No. 1 (2022): April
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Currently, there are still many students who like digital-based learning activities. This study aims to analyze the need for developing Android-based mobile learning media in SMK. The type of research used is survey research and literature study. The methods used in collecting data are observation, interviews, and questionnaires. The instruments used are interview sheets and questionnaires. The data analysis technique used is descriptive statistics. The study results showed that around eighty-two percent of students actively use smartphones outside learning hours. Students who use smartphones in learning are more informal, using them more to find information. On the other hand, only twenty-five students use smartphones to access course materials. Students agree to use their smartphones to study in class because it can increase their interest in learning and their ability to understand the subject matter better. Learning media can be a source of learning for students and help teachers in teaching, and learning activities can be more effective.

Early Warning System for Potential Fires in the Dry Season Based on the Internet of Things Maitimu, Excel Barthel; Widiasari, Indrastanti Ratna
International Journal of Natural Science and Engineering Vol. 6 No. 2 (2022): Juli
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Almost every year, forest and land fires occur in Indonesia, the impact of which is felt by the surrounding community and neighboring countries. Such as the recent fires in East Kotawaringin and Katingan, Central Kalimantan. The land affected by the fire is believed to be a concession belonging to a Malaysian company. According to the Ministry of Environment and Forestry, the area of forest and land fires is calculated based on an analysis of Landsat 8 OLI/TIRS satellite imagery, which is compared (overlay) with data on the distribution of hotspots. In this research, the Internet of Things (IoT) can be useful in preventing forest fires that usually occur on the slopes of Merbabu during the dry season. IoT sensor technology can detect air humidity, temperature, and wind speed parameters for fires in the dry season. This study aims to warn of potential forest and land fires in Mount Merbabu by providing notifications from IoT sensors. From the sensor testing that has been done, it can be seen that the sensor can provide information accurately and in real-time. The tests were carried out in three places: at the foot of Mount Merbabu, the SWCU FTI Peak, and the rice fields. The different results in three places with different vegetation indices indicate that the design of a fire potential warning system based on the Internet of Things in the dry season (July – September) can be used in areas with a low vegetation index on the slopes of Mount Merbabu, the majority of which are dry and easy grasslands burnt.

Page 16 of 22 | Total Record : 216

14 15 16 17 18

Filter by Year

2017 2025

Filter By Issues

All Issue Vol. 9 No. 1 (2025): April Vol. 8 No. 3 (2024): Oktober Vol. 8 No. 2 (2024): July Vol. 8 No. 1 (2024): April Vol. 7 No. 3 (2023): October Vol. 7 No. 2 (2023): Juli Vol. 7 No. 1 (2023): April Vol. 6 No. 3 (2022): October Vol. 6 No. 2 (2022): Juli Vol. 6 No. 1 (2022): April Vol. 5 No. 3 (2021): October Vol 5, No 3 (2021): October Vol 5, No 2 (2021): July Vol. 5 No. 2 (2021): July Vol 5, No 1 (2021) Vol. 5 No. 1 (2021): April Vol. 4 No. 3 (2020): October Vol 4, No 3 (2020) Vol. 4 No. 2 (2020): July Vol 4, No 2 (2020) Vol. 4 No. 1 (2020): April Vol 4, No 1 (2020) Vol 3, No 3 (2019) Vol. 3 No. 3 (2019): October Vol. 3 No. 2 (2019): July Vol 3, No 2 (2019) Vol 3, No 1 (2019) Vol. 3 No. 1 (2019): April Vol 2, No 1 (2018): Februari 2018 Vol 2, No 3 (2018) Vol. 2 No. 3 (2018): October Vol 2, No 2 (2018) Vol. 2 No. 2 (2018): July Vol 2, No 1 (2018) Vol. 2 No. 1 (2018): April Vol 1, No 3 (2017) Vol. 1 No. 3 (2017): October Vol 1, No 2 (2017) Vol. 1 No. 2 (2017): July Vol 1, No 1 (2017) Vol. 1 No. 1 (2017): April More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota denpasar,

Bali

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kota denpasar, Bali INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota denpasar,

Bali

INDONESIA