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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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The Journal of the Korea institute of electronic communication sciences
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Journal DOI :
The Korea Institute of Electronic Communication Science
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Volume & Issues
Volume 10, Issue 12 - Dec 2015
Volume 10, Issue 11 - Nov 2015
Volume 10, Issue 10 - Oct 2015
Volume 10, Issue 9 - Sep 2015
Volume 10, Issue 8 - Aug 2015
Volume 10, Issue 7 - Jul 2015
Volume 10, Issue 6 - Jun 2015
Volume 10, Issue 5 - May 2015
Volume 10, Issue 4 - Apr 2015
Volume 10, Issue 3 - Mar 2015
Volume 10, Issue 2 - Feb 2015
Volume 10, Issue 1 - Jan 2015
Selecting the target year
A Design and Implementation of a Monopole Antena with Arrow and Ribbon-Shaped for the WLAN Application
Mun, Seung-Min ; Kim, Gi-Rae ; Yoon, Joong-Han ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 763~768
DOI : 10.13067/JKIECS.2015.10.7.763
In this paper, a microstrip patch antenna with arrow and ribbon shape for WLAN was designed and manufactured. The antenna was designed on a FR-4 substrate that has a thickness of 0.8mm and a dielectric constant of 4.4. The substrate size is
. A commercially available tool was used for simulation to get the optimized parameters and the optimized values were obtained by finding the parameters that act sensitively to the performance of the antenna. The proposed antenna was produced using the optimized values, and characteristics of return loss, gain and radiation pattern in WLAN bands were measured.
An Effective Data Distribution Scheme in Sensor Network for Internet of Things
Kim, Jeong-Won ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 769~774
DOI : 10.13067/JKIECS.2015.10.7.769
Sensor network as an infrastructure of IoT(Internet of Things) has reliability issue because sensor nodes have limited memory as well as bounded battery. To improve the reliability of network, this paper proposes a data distribution scheme. The proposed algorithm distributes the data which each sensor node periodically produces into neighbor nodes that have enough memory as well as battery. This distribution process goes on more than 1 hop for overcoming unexpected spatial crash. Through simulation, we have confirmed that the proposed scheme can improve the resilience of IoT without affecting the life time of sensor network.
A Study on the Application Cases of High Temperature Superconductivity to Electrical Power System
Ko, Yun-Seok ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 775~780
DOI : 10.13067/JKIECS.2015.10.7.775
Because of the advantages such as the zero electrical resistance effect that disappears in the vicinity of the absolute temperature and the magnetic levitation effect, the superconducting applications are being tried in a variety of fields. But, those have faced many difficulties in the practical use because of the difficulty for the realization of the superconducting critical temperature. Recently, however, because the high-temperature super conductors was discovered newly which show superconductivity more than
, the application researches based on it are being tried in various fields. Therefore, this paper examines the possibilities and issues by surveying the high temperature superconducting applications to electrical power system.
Optimal Design considering Magnetic Saturation Characteristic of Current Transformers for the Overcurrent Warning Circuit
Kim, Sun-Jong ; Park, Eui-Jong ; Kim, Yong-Jae ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 781~786
DOI : 10.13067/JKIECS.2015.10.7.781
In this paper, we analyzed characteristic of window type current transformer and we performed the optimal design consider to the loss; in order to design the current transformer figured signal of overcurrent warning circuit. The core size of window type current transformer was determined by the secondary coil turns. We analyzed current waveform, which is appeared by the number of coil turns on the core, we made sure the relation of secondary coil turns and load resistance in order to improve the non-sinusoidal wave by the flux saturation of the current transformer core. Additionally, we did improvement of the accuracy and optimal design through the transformation of the inner diameter and the stack length when the outer diameter of core is sustaining.
A Study on Energy Management System for Energy Saving in Building
Kang, Hyun-Jun ; Park, Jae-Hyun ; Park, Jong-Tae ; Kim, Chun-Suk ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 787~792
DOI : 10.13067/JKIECS.2015.10.7.787
In this paper, We described the implementation of the Smart Gateway for heterogeneous interface integrated, Web Server and Building Energy Management System(: BEMS). The proposed system introduces the reduction of peak power and electric power usage with service model and operating algorithm for energy saving in building.
Simultaneous Mobile Robot Calibration using Iterative Linear Method
Kim, Young-Yong ; Jeong, Mun-Ho ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 793~800
DOI : 10.13067/JKIECS.2015.10.7.793
We presented a method to perform simultaneously both head-eye calibration and wheel calibration for a mobile robot that has a stereo camera mounted on the pan-tilt mechanism. Such a mobile robot system prevails recently. However, conventional methods are not applicable to this system because they assumed that camera systems were mounted on fixed structures. Building on conventional methods, we devised an iterative linear solution to solve the problem, and achieved satisfactory results in terms of accuracy in addition to efficiency due to simultaneous calibration. Furthermore, the calibration accuracy was improved by nonlinear optimization.
Study on the Maximum Number of Lyrics, Pictures, Music, and Movies that Human Can Make due to the Characteristics of Digital Contents
Kim, Sung-Man ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 801~806
DOI : 10.13067/JKIECS.2015.10.7.801
Recently, retro music is popular in the domestic music industry. Even in the movie industry, remake or retro movies are made continuously. In this paper, we consider the reason of remake in the viewpoint of mathematics and show that there is a maximum number of lyrics, pictures, music, and movies that human can make due to the characteristics of digital contents. The time that human cannot make new lyrics, new pictures, new music, and new movies any more will be estimated. Therefore, artists will have difficulties to make new contents in the future, and human have to listen and see the previous lyrics, movies, music, or pictures in the future. This study will give a deep philosophical insight for contents industry.
A Training Scheme of CAD and 3D Printing of Professional Human Resources for Adult Learners
Choi, Chul-Jae ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 807~812
DOI : 10.13067/JKIECS.2015.10.7.807
Lifelong education is a periodic keyword. For a lifelong learner friendly education, university should provide the adult learners with the efficient academic administrative service. A university should support them in learning a series of graded lifelong study and come up with the convenience of continuous learning, maintaining the educational operation as a lifelong education university. A local government induces the regional economy reinvigoration from setting the lifelong learning conditions of the city. In this paper, I suggest a policy management scheme for opening training courses of 3D printing and CAD professionals training module as a non-degree reeducation programs for the lifelong learners that reflects the industrial milieu of the local community.
Dynamic Analysis via Keyword Mapping for Internet of Things
Shon, Young-Woo ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 813~818
DOI : 10.13067/JKIECS.2015.10.7.813
IoT is the network of physical objects or things embedded with electronics, software, sensors and connectivity to enable it to achieve greater value and service by exchanging data with the manufacturer, operator or other connected devices. Until now many researches have been studied for centering keyword for detecting emerging technology of future and scientometric analysis among the papers. This paper propose searching method of emerging technology for the IOT (internet of things) which is recently interesting area via dynamic analysis for keyword mapping.
A Study on UX-Design as a Model for a Data-driven Apps in IoT
Moon, Hee-Jeoung ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 819~824
DOI : 10.13067/JKIECS.2015.10.7.819
Design of the past focusing on molding and system is gradually changed into design focusing on users that reflects design philosophy considering users, and especially, the importance of User Experience Design that is to offer the best experience in using some products or services is realized. This study accessed design based on data having a low effect on function of wearable among changes that UX Design should consider in IoT generation. I think the data is diverse and many existing social commerce app, similar to the layout of the data in IoT devices based on the layout of the interface.Apps that data based model to analyze the layout. and the structure of the UX design were summarized.
A Study on the Health Screening Solution by Using Electronic Medical Record
Lee, Hyo-Seung ; Oh, Jae-Chul ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 825~830
DOI : 10.13067/JKIECS.2015.10.7.825
The Electronic Medical Record(: EMR) is to store medical data not in the form of document, but in the data storage. Such EMR can not only solve various problems of document use such as storage/arrangement of and securing space for document, but also make it possible to provide customized-treatment based on large quantity of customer data, so that hospitals can reduce the management cost and also improve the work efficiency. Customers also can receive the great quality of medical service. Owing to such strengths, the EMR has been rapidly introduced and applied to many hospitals and clinics since 1990s. In case of the current health screening system, however, paper forms used for health screening is also stored, on top of EMR. There would be various reasons why it is stored in the form of document. While the EMR used in hospitals is comprised of a unit program performing medical record, the health screening system is comprised of a unit program performing logics related to health screening. For this reason, it might be unavoidable for the health screening system to store document forms. If the EMR function is applied to the health screening system, it is expected to be able to operate more efficient health screening solution.
Study on Scrambling Occurrence in Line Coder for UTF-8 Hangul Syllable Code based on Unicode
Hong, Wan-Pyo ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 831~836
DOI : 10.13067/JKIECS.2015.10.7.831
This paper studied scrambling occurrence in the line coder for UTF-8 hangul syllable code based on unicode. The paper suggested that scrambling is occurred when consecutive four "0" bit is entered into the line coder from the source codes. Currently, ITU-T is applying HDB-3 scrambling method in AMI line coder, According to the study result, scrambling is occurred about 39% in UTF-8 code on Unicoe Hangul syllable.
Identification of Group-Node using Genetic Algorithm, and Re-Construction Technique of Social Network
Cho, Min-Ho ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 837~844
DOI : 10.13067/JKIECS.2015.10.7.837
A research of Social Network is focused to the single node and link. But when we consider the complexity of Social Network, I think we need the analysis of integrated influence by multiple nodes that satisfied with specific condition. But, the study of this area don`t process apart from Sub-network concept. The purpose of this paper is to focus on the analysis of influence by multiple nodes. For it, I define a new term as Group Node, and it express multiple nodes that satisfied a specific condition. And I propose a method for reconstruction by using Group Node in Social Network. and I make a program that produce a Group Node satisfied with a special condition by using Genetic Algorithm, and show the result. I hope this result can be a start point of the Social Network analysis based on Group Node.
Analysis of Nonlinear Behavior in Love Model with External Force
Huang, Lyni-Un ; Bae, Young-Chul ;
The Journal of the Korea institute of electronic communication sciences, volume 10, issue 7, 2015, Pages 845~850
DOI : 10.13067/JKIECS.2015.10.7.845
Love which is one of the emotional of mankind, has been studied in sociology and psychology as a matter of great concern. Through such a research, the researchers have provided the basic mathematical model for love model, we cannot find nonlinear characteristics through the basic love model. Therefore, in this paper, in order to find nonlinear behaviors in the basic love model, we apply external force to the basic love model. Then we confirm the existence of nonlinear behaviors through time series and phase portrait. We also confirm that this nonlinear behaviors have the periodic doubling, chaotic phenomena and periodic process which are very similar to typical chaotic occurrence phenomena.