cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Hengki Tamando Sihotang
Contact Email
hengkitamando26@gmail.com
Phone
+6281381251442
Journal Mail Official
hengkitamando26@gmail.com
Editorial Address
Romeby Lestari Housing Complex Blok C, No C14 Deliserdang, North Sumatra, Indonesia
Location
Unknown,
Unknown
INDONESIA
International Journal of Basic and Applied Science
Published by Institute of Computer Science
ISSN : 23018038     EISSN : 27763013     DOI : https://doi.org/10.35335/ijobas
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Physics
International Journal of Basic and Applied Science provides an advanced forum on all aspects of applied natural sciences. It publishes reviews, research papers, and communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Electronic files and software regarding the full details of the calculation or experimental procedure, if unable to be published in a normal way, can be deposited as supplementary electronic material.
Arjuna Subject : Umum - Umum
Articles 119 Documents
 4   5   6   7   8 
Ubuntu Linux Server Security Analysis and Simulation With Port Knocking & Iptable Onno Widodo Purbo
International Journal of Basic and Applied Science Vol. 8 No. 2 (2019): September: Basic and Applied Science
Publisher : Institute of Computer Science

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Computer network security is very important to maintain the confidentiality of data and information contained on the server. This data and information is only intended for administrators and users who have the right to access it through the service port. Leaving an important port open is a fatal mistake that can result in an attack on the server. The existence of Linux as an operating system kernel developed with a copyright or opensource model, computer networks using Linux servers are able to manage all internet services, including routers, database servers, proxy servers and FTP servers, in addition to the distributions. also easy to find in the market. One of them is ubuntu, ubuntu is one of the distributions that has been used by many people because Ubuntu has a user-friendly interface and many developers and is supported by a very large community. The method used in this study is the method of observation, interview and design of the Linux Ubuntu iptables operating system security, and the results of this study explain that the use of Iptables configuration on the Ubuntu Linux operating system can be done on a LAN and Wifi cable connection, as long as all clients are on the same class then the Iptables configuration can block client access to the server and can be done the other way around, namely blocking server access to the client. By using the accept setting, this system can also reject certain IP addresses or ports, in addition to accepting other connections. If you want to reject all connections and want to specify what connections you want to do manually, then you have to change the default setting from chain to drop. This method can only be useful for servers that have sensitive information, and only use the same IP address to connect to that server.
Design of Hybrid Solar Power Plant for household Electricity Loads 1300 VA Bambang Winardi; Enda Wista Sinuraya; Agung Nugroho; Erlin Dolphina
International Journal of Basic and Applied Science Vol. 10 No. 4 (2022): March: Basic and Applied Science
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/ijobas.v10i4.63

Abstract

Indonesia is a country that is rich in sunshine. Based on NASA's Power Data Access Viewer data in 2021, Indonesia has an average radiation level of 5.6 kWh/m2/day. This situation is a big advantage for Indonesia in utilizing solar energy into electrical energy through photovoltaic, especially in the Semarang City area which has an average radiation level of 5.6 kWh/m2/day. The house where the research is located is in Pudakpayung, Semarang City with a roof area of ​​24m2. The Hybrid Solar Power Plant that is designed is an electric power supply system whose sources come from the Solar Power Plant and the State Electricity Company alternately which are regulated automatically by automatic control equipment with battery capacity mode. The results of the calculation, the required components consist of 9 solar modules with a capacity of 120 WP, 4 batteries with a capacity of 12v100Ah, 1 unit of 3000 Watt inverter and 1 unit of Solar Charger Controller 60A. The results of the tests that have been done, the solar panels produce an average power of 5446 wh per day, the battery will be full at 13.00.
Relationship of Predisposing Factors with Breast Care in Pregnant Women in Sungai Orosan Village Padang Bolak District North Law Wiwi Wardani Tanjung; Nurhanifah Siregar; Tetty Misbah
International Journal of Basic and Applied Science Vol. 10 No. 4 (2022): March: Basic and Applied Science
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/ijobas.v10i4.66

Abstract

Breast care needs to be done by pregnant women to be able to expedite the release of breast milk. Most pregnant women do not do breast care because of lack of knowledge in breast care itself, lack of information about breast care such as not protruding nipples, or flat, because of the condition of the breasts, especially the nipples. The purpose of this study was to determine the relationship between predisposing factors and breast care for pregnant women in Sungai Orosan Village, Padang Bolak District, North Padang Lawas Regency in 2021. The type of research was quantitative with a cross sectional study design. The population in this study were all pregnant women as many as 36 people. The sample in this study was all pregnant as many as 36 people. Data were analyzed by univariate and bivariate using Chi Square test. The results showed that there was a relationship between knowledge factors (p= 0.004), parity (p= 0.004) and employment status (p= 0.003) with breast care in pregnant women. The conclusion is that there is a relationship between knowledge, parity and employment status with breast care in pregnant women. It is hoped that pregnant women can increase their knowledge about breast care.
The Effect of Adolescent Knowledge about Menstruation on Personal Hygiene Behavior during Menstruation in Environment III Silandit Village Juliana Lubis; Eva Yusnita Nasution; Wiwi Wardani Tanjung
International Journal of Basic and Applied Science Vol. 10 No. 4 (2022): March: Basic and Applied Science
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/ijobas.v10i4.67

Abstract

Reproductive Health What is most important is complete physical, mental and social well-being, not only because you are free from disease or disability, in all aspects related to the reproductive system, its functions and processes, including being male or female. The research was conducted to determine the effect of adolescent knowledge about menstruation on personal hygiene behavior when menstruation occurs in environment III, Silandit village. This research is analytic with a cross sectional design, with a population and sample of 33 young women who are in environment III Silandit village. This study shows the results that there is an influence of adolescent knowledge about menstruation on personal hygiene behavior when menstruation occurs in the environment III Silandit village with a value of p = 0.005 <p = 0.05. The conclusion in this study is to be able to provide counseling to adolescents related to reproductive health in adolescents, especially young women by related agencies or related parties.
Depot Sanitation, Hygiene, and Analysis of Total Microba Control in Refilled Drinking Water in The Barus District Nurhanifah Siregar; Wiwi Wardani Tanjung; Lena Juliana Harahap
International Journal of Basic and Applied Science Vol. 10 No. 4 (2022): March: Basic and Applied Science
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/ijobas.v10i4.68

Abstract

Water is the most important requirement for life. People would prefer to refill their drinking water to satisfy their needs because it is easier and more efficient. It is important to implement hygiene and sanitation measures at drinking water depots if the drinking water produced is to be healthy and safe. Contamination of water can occur if drinking water depots are not kept clean and sanitary. The research used is a descriptive study conducted in the Barus District, with the goal of providing a description of the depot's hygiene and sanitation, as well as laboratory analysis to identify the total contamination of coliform bacteria in the Barus District's Refill Drinking Water Depot. According to the Minister of Health of the Republic of Indonesia no 43 in 2014. None of the drinking water depots in Barus district met the physical qualifying requirements. The exam resulted in a score of 70 or higher. and the results of laboratory tests on the bacteriological quality of drinking water replenished with all coliform-contaminated drinking water samples that exceeded the quality satandard. As a result, the depot owner should turn on the disinfection equipment when starting work and always pay attention to building sanitation, employee hygiene and maintaining drinking water treatment equipment to prevent contamination of drinking water.
The Correlation Between Mastery of Vocabulary and Reading Comprehension of the 2012/2013 Year Students at SMP Sacrojes Marie Xavier
International Journal of Basic and Applied Science Vol. 10 No. 4 (2022): March: Basic and Applied Science
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/ijobas.v10i4.69

Abstract

This research deals with the student’s mastery of vocabulary and reading comprehension. It is aimed at finding out whether there is a high correlation between the mastery of vocabulary and reading comprehension. In this research the population was taken from the 2012/2013 year students of SMP Sacrojes. The total number of the samples was 20 students. After the data had been collected, the writer analyzed the data by using the formula of Pearson Product Moment. After calculating the correlation of mastery vocabulary and reading comprehension test, it was obtained that the correlation coefficient was 0,57. It means that there is a high correlation between mastery of vocabulary and reading comprehension. It implies that the higher the student’s mastery on vocabulary, the better they can comprehend the reading texts.
Contribution of Mastery of Sociolinguistic Concepts to Pragmatic Skills by Students of Free Mathodist 1 Private Junior High School Medan 2012/2013 Academic Year Nur Ayni M Pasaribu
International Journal of Basic and Applied Science Vol. 10 No. 4 (2022): March: Basic and Applied Science
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/ijobas.v10i4.70

Abstract

Mastery of sociolinguistic concepts gives a negative contribution to the achievement of students' pragmatic skills. In accordance with the results of the analysis above, it can be concluded that the mastery of sociolinguistic concepts is not a criterion variable that makes a significant contribution to improving pragmatic skills. Thus, the research hypothesis which says that mastery of sociolinguistic concepts makes a significant contribution to the development of pragmatic skills of Free Methodist 1 Private Junior High School students, is not proven.
Implementation of the waste volume clustering method at company "x" to reduce the amount of waste using the k-medoids algorithm Agung Triayudi
International Journal of Basic and Applied Science Vol. 11 No. 2 (2022): Sep: Basic and Applied Science
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/ijobas.v11i2.73

Abstract

Garbage/waste is the residue of human daily activities or comes from natural processes in solid form. Some of the causes that affect the environment are the problems of managing and disposing of waste/household waste. Company "X" is a company engaged in waste transportation services and non-hazardous waste management for business sectors such as apartments, offices, hospitals, and hotels. In this problem, there is an increase in the cubication of household waste produced by the vendor company "X" every month. Data mining is the extraction of information. Identify hidden information from large amounts of data, leverage and promote knowledge in real-time applications. Clustering is a multidimensional statistic designed to collect similar individuals into homogeneous classes based on observations in variables. The resulting classes can be set according to various structures. This study will cluster data from the volume of levies issued by the Environmental Service from 2010 to 2021 into 3 clustering categories, namely Klassam_0 for low volume of waste generated, Klassam_1 for medium volume of waste generated, and Klassam_2 for the volume of waste generated is high. From the results of this study, there were 8 on Klassam_0, 88 on Klassam_1, and 48 on Klassam_2. The volume of organic and inorganic waste is very good because of the emphasis on the waste management process that occurs in 2021, from the results of the clustering in 1 year (12 months) in 2021 8 months or clusters that are included in klassam¬_0 which can be interpreted as volume of waste "low", and 4 months or clusters included in klassam_2 which can be interpreted as "high" volume of waste.
Implementation of Physics Learning by Using the Guided Inquiry Method on the subject matter of Ohm's Law and Series-parallel Circuits, Effectiveness in terms of Learning Outcomes, Involvement and Constraints Maria Goretti Molla
International Journal of Basic and Applied Science Vol. 11 No. 1 (2022): June: Basic and Applied Science
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine: (1) the effectiveness of the learning of physics using guided inquiry methods in terms of improving student learning outcomes, (2) Does the implementation of learning physics using guided inquiry on the subject of ohms law, series and parallel circuits can be involve students, (3) what obstacles or difficulties experienced by students in the implementation of learning physics using guided inquiry on the subject of ohms law, series and parallel circuits and how it can help students to overcome obstacles or difficulties faced by students in learning. The research was carried on in high school Karanu Waikabubak Sumba Barat-NTT on 29 April 2011 until 11 May 2011. Object of research are 15 students in select classes Xd researchers based on the results of a pretest that was done of students as treament or treatment that is given researcher. Data collection include: pretest, postest, learning activities with guided inquiry method using worksheets, student involvement Sheet observations, and interviews. The results showed that the learning of physics using guided inquiry on the subject of ohms law, series and parallel circuits: (1) The effectiveness of learning physics using guided inquiry methods in terms of student learning outcomes by using a test analysis of dependent T-test level α = 0.05 (2) lack of involving students in all learning activities using the methods of guided inquiry, (3) know the obstacles or difficulties the student and knowing how to cope with natural constraints on students.
Design of A Tool to Counter Objects with A Pear Sensor as A Fan and Light Controller Based on An Rtc Based on An ATmega 8535 Microcontroller Faisal Ari Fitra
International Journal of Basic and Applied Science Vol. 11 No. 1 (2022): June: Basic and Applied Science
Publisher : Institute of Computer Science (IOCS)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The need for a sense of comfort is one that is very important in human life. Likewise with comfort in a room, especially in the comfort of the office, especially in the boardroom, on campus. The purpose of the design and manufacture of the PIR sensor is as a controller and counter the man when it went into a room, the fan in the living room with a temperature above normal. Hopefully, by the automation system controls the fan and lights in the room temperature can be maintained to keep the temperature stable, and live according to the light intensity of the light that has been programmed.

Page 6 of 12 | Total Record : 119

 4   5   6   7   8 

Filter by Year

2019 2025


Reset
Filter By Issues
All Issue Vol. 14 No. 2 (2025): Sep (In Progress) Vol. 14 No. 1 (2025): Computer Science, Engineering, Basic and Applied mathematics Science Vol. 13 No. 4 (2025): Computer Science, Engineering, Basic and Applied mathematics Science Vol. 13 No. 3 (2024): Dec: Optimization and Artificial Intelligence Vol. 13 No. 2 (2024): Sep: Basic and Applied Science Vol. 13 No. 1 (2024): June: Basic and Aplied Science Vol. 12 No. 4 (2024): March: Basic and Applied Science Vol. 12 No. 3 (2023): December: Basic and Applied Science Vol. 12 No. 2 (2023): Sep: Basic and Applied Science Vol. 12 No. 1 (2023): June: Basic and Applied Science Vol. 11 No. 4 (2023): March: Basic and Applied Science Vol. 11 No. 3 (2022): December: Basic and Applied Science Vol. 11 No. 2 (2022): Sep: Basic and Applied Science Vol. 11 No. 1 (2022): June: Basic and Applied Science Vol. 10 No. 4 (2022): March: Basic and Applied Science Vol. 10 No. 3 (2021): December: Basic and Applied Science Vol. 10 No. 2 (2021): September: Basic and Applied Science Vol. 10 No. 1 (2021): June: Basic and Applied Science Vol. 9 No. 4 (2021): March: Basic and Applied Science Vol. 9 No. 3 (2020): December: Basic and Applied Science Vol. 9 No. 2 (2020): September: Basic and Applied Science Vol. 9 No. 1 (2020): June: Basic and Applied Science Vol. 8 No. 4 (2020): March: Basic and Applied Science Vol. 8 No. 3 (2019): December: Basic and Applied Science Vol. 8 No. 2 (2019): September: Basic and Applied Science More Issue