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HENGKI TAMANDO SIHOTANG
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Jurnal Mantik
Published by Institute of Computer Science
ISSN : -     EISSN : 26854236     DOI : -
Core Subject : Economy, Science, Education,
Computer Science & IT Economics, Econometrics & Finance Languange, Linguistic, Communication & Media
Jurnal Mantik (Manajemen, Teknologi Informatika dan Komunikasi) is a scientific journal in information systems/informati containing the scientific literature on studies of pure and applied research in information systems/information technology,Comptuer Science and management science and public review of the development of theory, method and applied sciences related to the subject. Jurnal Mantik Penusa is published by Institute of Computer Science (IOCS). Editors invite researchers, practitioners, and students to write scientific developments in fields related to information systems/information technology,Comptuer Science and management science). Jurnal Mantik is issued 4 (FOUR) times a year.
Arjuna Subject : -
Articles 2,151 Documents
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The Role of Working Capital on Profitability After Tax on Automotive And Allied Products Companies in Indonesia: The Role of Working Capital on Profitability After Tax on Automotive And Allied Products Companies in Indonesia Galih Wicaksono; Yeni Puspita
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

The purpose of this research is to know the role of working capital on profitability through factors that affect the amount of working capital, among others: Working capital turnover, liquidity, cash turnover, receivables turnover, turnover Stocks, and cash versus total assets, both partially and simultaneously. The data analysis method uses SPSS software with multiple regression analysis, which is used to test the tested hypothesis, both partially and simultaneously, and see the magnitude of the coefficient. Based on the results of the study and the discussion can be concluded that partially only the turnover of working capital and liquidity that have a significant impact on profitability, but the direction is negative. Simultaneously, the turnover of working capital, liquidity, cash turnover, receivables turnover, inventory turnover, and cash versus total assets affects profitability, but the effect is relatively small which is only 19.4%.
The Effect of profitability, investment opportunity set and free cash flow on dividends paid to companies, (Empirical Study of Manufacturing Companies): The Effect of profitability, investment opportunity set and free cash flow on dividends paid to companies, (Empirical Study of Manufacturing Companies) Ari Lestari
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

This study has the objective to find out how the effect of profitability, investment opportunity set and free cash flow to the payment of dividends on manufacturing companies listed in Indonesia Stock Exchange (BEI). The period used in this study is three years ie from 2013 - 2016. The approach taken by the authors using quantitative methods.This study uses secondary data obtained from the web www.idx.co.id, The analysis used in this study were using multiple linear regression were used to examine the effect of independent variables on a population of 141 dependen.Dari variable manufacturing company acquired eight manufacturing companies in the sample with a four-year observation period (2013-2016). The results showed that: Partially independent variables (1) Profitability effect on the payment of dividends, (2) investment opportunity set does not affect the payment of dividends, (3) Free cash flow does not affect the payment of dividends. Simultaneous (together) independent variables (profitability, investment opportunity set and free cash flow toward dividend payments.
Transfered Tax Knowledge to Improve Taxpayer Compliance: Transfered Tax Knowledge to Improve Taxpayer Compliance Nurcahyaning Dwi Kusumaningrum; Rachmat Hidayat; Galih Wicaksono; Yeni Puspita; Venantya Asmandani; Tree Setiawan Pamungkas; Djoko Susilo
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

The purpose of research to know the influence of the taxpayer science level to the compliance of paying taxes by taxpayers, among others: knowledge of tax law, system knowledge and taxation functions, and the knowledge of sanctions Taxation both partially and simultaneously. Data analysis methods use SPSS software with a linear regression analysis, which is used to test the hypothesized influence of the taxpayer's level of science to pay tax compliance by both partial and simultaneous taxpayers, and See the magnitude of the coefficient. Based on the results the study concluded that in partial and simultaneous levels of taxpayer enforcement science has significant effect on the compliance of paying taxes by taxpayers.
Simulation Of Traveling Salesman Problem For Distribution Of Fruits In Bogor City With Simulated Annealing Method: Simulation Of Traveling Salesman Problem For Distribution Of Fruits In Bogor City With Simulated Annealing Method Ali Khumaidi; Ridwan Raafi'udin; Indra Permana Solihin
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Traveling Salesman Problem (TSP) is a problem of finding the shortest distance when a salesman visits a number of cities, provided that each city is visited exactly once and then returns to the initial city. TSP simulations for fruit distribution in Bogor city with each location having x and y coordinates as distances. The TSP used is a symmetrical TSP whose distance from city a to b has the same distance as city b to a. To solve and find solutions to problems using the Simulated Annealing (SA) Algorithm. The working principle is that at high temperatures metal liquid particles have a high energy level so it is relatively easy to move against other particles. Then as the temperature drops the particle slowly adjusts itself to form a configuration so that a stable state with a minimum energy level is obtained. This minimum energy is the shortest distance. Based on experiments that have been done using SA Algorithm on the TSP problem, the results show that the number of iterations that produce the optimal solution depends on the number of simulated locations. The more simulated location points, a large number of iterations are needed.
Effect Of Using E-Filling On Quality Of Tax Reporting Services In East Java: Effect Of Using E-Filling On Quality Of Tax Reporting Services In East Java Venantya Asmandani; Tree Setiawan Pamungkas; Rachmat Hidayat; Galih Wicaksono; Yeni Puspita; Nurcahyaning Dwi Kusumaningrum
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

The purpose of this research is to determine the use of e-filling of the quality of tax Reporting Services partially. This research used quantitative methods and data analysis methods use SPSS software with simple regression analysis, which is used to test tested hypotheses, partially, and to see the magnitude of the coefficient. Based on the results of research and discussion can be concluded that partial use of e-filling affects the quality of the annual tax reporting Service, But the direction is negative and is proven in analysis of SPSS test results with a significance value of 0.000 < from 0.05. Increasing the use of e-filling jointly by taxpayers for annual SPT tax reporting will decrease the quality of the annual SPT tax Reporting Service, the DGP server is still not able to accommodate so many access at one time so that often occurs errors or difficult to access due to the limitations of available brandwidth.
Comparative Analysis Of Chaotic Cat MAP And Fibonacci Image Scrambling Methods To Secure Digital Image: Comparative Analysis Of Chaotic Cat MAP And Fibonacci Image Scrambling Methods To Secure Digital Image Hendra Hendra; Johanus Kurniawan; Insidini Fawwaz
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

In the process of communication through the internet network, security is an important issue that needs serious attention. This is because the process of sending and communicating data through the internet has the possibility to be intercepted by other parties. This also applies to image data. Therefore, data to be sent via the internet must be secured first. However, the application of several cryptographic methods and several methods of randomization of images requires a relatively long time. To solve the problems encountered, the Image Scrambling Generalized Fibonacci And Chaotic Cat Map algorithm can be applied. The work process of the algorithm will start from the process of selecting the input image and charging the key value that will be used. After that, the process continues with the process of randomizing the image, so that it will produce a randomized image. The resulting image can be reconstructed again by applying an anti-scrambling algorithm. This process requires the same key to be used at the scrambling stage. The resulting application can randomize the original image by filling in the randomization key value. The resulting image can be reconstructed again using the same key. In addition, the application will also produce detailed reports of calculations performed during the scrambling and anti-scrambling processes for each of these methods.
Performance analysis of Navigation AI on Commercial Game Engine: Autodesk Stingray and Unity3D Moch Fachri; Ali Khumaidi; Nur Hikmah; Nuke L Chusna
Jurnal Mantik Vol. 4 No. 1 (2020): May: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

This research establish crowd simulation on modern game engine such as Autodesk Stingray and Unity 3D. This paper explores the navigation system of both game engine. Furthermore we compare the navigation performance for each navigation system used by those engine: The gameware Navigation which is used in Stingray as its middleware for navigation AI, and Unity Navigation used in Unity3D. We simulate the crowd simulation using scenario of crossroad and narrow-passage. Experimental result demonstrates the navigation of hundreds of agents in densely populated environments.
Bandwidth Quota Configuration For Internet Access At Pematangsiantar Mayor's Office: Bandwidth Quota Configuration For Internet Access At Pematangsiantar Mayor's Office Daniel Saputra Sitorus; Sumarno Sumarno; Zulaini Masruro Nasution; Indra Gunawan; Hendrik Qurniawan
Jurnal Mantik Vol. 3 No. 4 (2020): February: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Decreasing network performance Along with increasing network users. The way that can be done to reduce network performance degradation is by doing bandwidth management. Bandwidth management is very important in determining the bandwidth allocation that will be given to users to exceed the existing bandwidth allocation in the network. MikroTik Routerboard is one type of proxy that has a special operating system, namely the MikroTik OS Router has QoS which is used for full bandwidth usage licenses. This study provides bandwidth sharing with the Queue Tree method)
Source Code Library (SCL): Application Support Learning Software Development: Source Code Library (SCL): Application Support Learning Software Development Muhammad Wali; Lukman Ahmad
Jurnal Mantik Vol. 4 No. 1 (2020): May: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

Learning for software developers enthusiasts both students and faculty has its own problems in learning a programming language. During this practical learning has been widely used by online media. However, problems and obstacles at the time of writing the program code and error code appear an obstacle in developing software for students. This study developed a learning support applications software development so that it becomes a learning solution in software development. In a study using the stages are divided into three tahapyaitu; data collection of pre-development, development and implementation, data collection and post-development, sedangkantahap software development using linear sequential model is often called the waterfall model.
Implementation Of Pohlig-Hellman Algorithm And Steganography Combination Of First Of File (Fof) And End Of File (EOF) For File Security: Implementation Of Pohlig-Hellman Algorithm And Steganography Combination Of First Of File (Fof) And End Of File (EOF) For File Security Reni Rahmadani; Hervei Desmon Hutahaean
Jurnal Mantik Vol. 4 No. 1 (2020): May: Manajemen, Teknologi Informatika dan Komunikasi (Mantik)
Publisher : Institute of Computer Science (IOCS)

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Abstract

The method of steganography First of File (FOF) has an additional lines at the beginning of image and End of File (EOF) method has an additional lines at the bottom of the image. To reduce the suspicion then FOF and EOF methods are combined produces stego image that has border at the top and bottom. To improve the security of message Pohlig-Hellman cryptographic algorithm is used. Pohlig-Hellman algorithm uses two keys (n and e) to process the encryption. Key n is a prime number algorithm tested with Lehmann. Key e have the legal conditions 1 <e <? (n) where ? (n) = n-1. Stego image produced has additional lines at the top and bottom of the image, it is because the ciphertext is inserted at the beginning and end of the image matrix. The result shows that the encryption process takes longer than the decryption process. Processing 129 character message encryption process takes 78 milliseconds and the decryption process takes just 16 milliseconds. Cover image of size 148 KB becomes 150 KB after embedding process of 1132 characters ciphertext.

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