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ComTech: Computer, Mathematics and Engineering Applications
Published by Universitas Bina Nusantara
ISSN : 20871244     EISSN : 2476907X     DOI : -
Core Subject : Science, Education, Engineering,
Computer Science & IT Engineering Mathematics
The journal invites professionals in the world of education, research, and entrepreneurship to participate in disseminating ideas, concepts, new theories, or science development in the field of Information Systems, Architecture, Civil Engineering, Computer Engineering, Industrial Engineering, Food Technology, Computer Science, Mathematics, and Statistics through this scientific journal.
Arjuna Subject : -
Articles 1,585 Documents
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Knowledge Management: Tinjauan Pemberdayaan pada Perusahaan Umumnya Suparto Darudiato; Lince Suryadi
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 2 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i2.2550

Abstract

Knowledge management is not a new concept but its use in the firm still holds a very important role. This paper aims to further introduce the concept of knowledge management, which in its implementation has so many benefits that can be gained, barriers that can interfere, and things that must be considered. From thebenefits and barriers of knowledge management’s implementation, we can analyze the future of knowledge management use. To support this paper, data and information are searched through some books, journals, and articles that related with topic. The result of this paper is a comprehension about knowledge management concept and its implementation to firm.
Kajian Sketsa Digital dalam Proses Reka-Struktur Bentuk-Bentuk Surface Riva Tomasowa
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 2 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i2.2551

Abstract

Free form surface has a multiple complexity curve intrinsically, so that special approach is needed to form the structure. Geodesic shell is well-known as the shortest path between two points on a curved surface. This method is used to generate the structure of form, which can be easily determined by its basic shape or the complex form. This paper explains how Geodesic theory can assist to generate structures in the early stage of digital sketching. A workshop that has initially started becomes a topic to this discussion. The digital sketching process to apply the theory is the aim of this paper.
Aplikasi Simulasi Tambak Ikan Berbasiskan Mobile untuk Meningkatkan Minat Kewirausahaan Budi Yulianto; Lusiana Citra Dewi; Erlangga Damar Prayoga; Rizky Arif Budiman
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 2 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i2.2552

Abstract

The background of the research is that mobile phone based application growth is not as increasing as its education category for improving users’ entrepreneurial-interest, especially in fishpond. The goal of the research is designing an application as a digital game based education tool that can simulate fishpond to users. Output of the research is a mobile application that can deliver information of fishpond system as basic entrepreneurship knowledge to users. On the development phase, the research uses literature study and user requirement analysis. Conclusion of the research has shown that the developed application is based on multimedia and game and also can deliver basic information of fishpond to users such as preservation, purchasing, and selling. The application is developed with good-looking interface and easily-covered level of difficulty.
Perbandingan Bubble Sort dengan Insertion Sort pada Bahasa Pemrograman C dan Fortran Reina Reina; Josef Bernadi Gautama
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 2 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i2.2553

Abstract

Sorting is a basic algorithm studied by students of computer science major. Sorting algorithm is the basis of other algorithms such as searching algorithm, pattern matching algorithm. Bubble sort is a popular basic sorting algorithm due to its easiness to be implemented. Besides bubble sort, there is insertion sort. It is lesspopular than bubble sort because it has more difficult algorithm. This paper discusses about process time between insertion sort and bubble sort with two kinds of data. First is randomized data, and the second is data of descending list. Comparison of process time has been done in two kinds of programming language that is C programming language and FORTRAN programming language. The result shows that bubble sort needs more time than insertion sort does.
Anticipating WPS PIN Vulnerability to Secure Wireless Network Indra Dwi Rianto
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 2 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i2.2554

Abstract

WiFi Protected Setup (WPS) is a standardized function supported by numerous vendors of wireless routers and access point to help set up connection to a wireless local area network. It is designed to simplify the set up and generally enabled by default. Due to design flaw, the WPS or QSS PIN is susceptible to a brute forceattack. In this paper, we test the security vulnerability occurred, evaluate the performance and give recommendations to anticipate the attack.
Strategi Bisnis Teknologi Informasi pada Perusahaan Hitachi, Ltd. Tri Pudjadi; Achmad Jaya; Defria A. Kiranal; Raedi Rahadian
ComTech: Computer, Mathematics and Engineering Applications Vol. 4 No. 2 (2013): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v4i2.2555

Abstract

Information technology (IT) application for corporate is now a very common thing. It brings many benefits, such as improving business performance, minimizing marketing cost and time, and minimizing the risk in doing business. Hitachi, Ltd. relies on information technology for the company's progress. Various IT strategies performed by Hitachi, Ltd. for improving the quality of their business which one of them is implementing enterprise resource planning (ERP) system of Microsoft Dynamics Navision as its core business application. As a business management software, this system connects many components of the organization by presenting a comprehensive business management functionality-from the financial sector to supply chain. Nevertheless, one of the shortcomings of ERP system is its inefficient schedule solution. Therefore, Hitachi, Ltd. implements a lot of strategies, beside ERP, to survive in the competitive business world of information technology.
Analisis dan Perancangan Sistem Informasi Laboratorium Rumah Sakit Kanker Dharmais Dengan Menggunakan Total Architecture Syntesis Michael Yoseph Ricky
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2556

Abstract

The purposes of this research are to design and implementation of laboratory information systems (LIS) at the Laboratory of Cancer Hospital Dharmais (Dharmais Cancer Hospital). The methods used are the method of analysis, design methodology using Total Architecture Synthesis (TAS) and database design methods. Methods include analysis of the survey directly into the clinical laboratory Dharmais Cancer Hospital, and interviews with users who running the current system in Dharmais Cancer Hospital Clinical Laboratory. The design method using TAS. The results of this study is a single integrated Laboratory Information System applications with other systems that exist in Dharmais Cancer Hospital and also the delivery of feature inspection results by using text service and email, in addition to be taken directly to Dharmais Cancer Hospital and sent to the address. The conclusions from this study are all the transactions contained in Dharmais Cancer Hospital Clinical Laboratory have been computerized and integrated. 
Pembangunan Game Pc Berbasis 3d Dengan Teknologi Xna Dan Wiimote Michael Yoseph Ricky; Tunjung Agung Wijaya
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2557

Abstract

The article explains about building a 3D based computer with XNA game engine and WiiMote technology as the controller or in other words, the input device. XNA is a game engine developed by Microsoft for building 2D or 3D game purposes in Xbox console. This engine licenses are free, but not for commercial purposes. WiiMote is Nintendo Wii’s remote control. The remote can be connected to PC by bluetooth connection. 
Perancangan Data Warehouse Pada Software Laboratory Center Alvin Chandra
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2558

Abstract

The purpose of this study is to analyze the existing database on Software Laboratory Center to obtain necessary information and design data warehouse to integrate existing data to obtain some global information. The methods used are analysis and design method. The method of analysis is done by conducting surveys and analysis of the running system, analysis and identification the weaknesses of the running system, and troubleshooting analysis. And the data warehouse design method is done by applying the nine steps (Nine-Step Methodology) that used by Ralph Kimball's to design star schema. The result is data warehouse that provides some global information which global, relevant, and integrated which can be seen from various points of view that is useful for the leaders to make decisions. Separate data warehouse from operational databases that already exist required by Software Laboratory Center to assist leaders in making strategic decisions in a fast and precise way. 
Pengukuran Jarak Berbasiskan Stereo Vision Iman Herwidiana Kartowisastro
ComTech: Computer, Mathematics and Engineering Applications Vol. 1 No. 2 (2010): ComTech
Publisher : Bina Nusantara University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21512/comtech.v1i2.2559

Abstract

Measuring distance from an object can be conducted in a variety of ways, including by making use of distance measuring sensors such as ultrasonic sensors, or using the approach based vision system. This last mode has advantages in terms of flexibility, namely a monitored object has relatively no restrictions characteristic of the materials used at the same time it also has its own difficulties associated with object orientation and state of the room where the object is located. To overcome this problem, so this study examines the possibility of using stereo vision to measure the distance to an object. The system was developed starting from image extraction, information extraction characteristics of the objects contained in the image and visual distance measurement process with 2 separate cameras placed in a distance of 70 cm. The measurement object can be in the range of 50 cm - 130 cm with a percentage error of 5:53%. Lighting conditions (homogeneity and intensity) has a great influence on the accuracy of the measurement results. 

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