• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.2
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• pp.550-558
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• 2010

Jungganbo is a writing method for the Korean traditional music. Since writing the Korean music needs to be done by hand and Chinese characters are used, only an expert musician might handle Jungganbo. In this paper, an authoring software tool for Jungganbo is introduced. It is useful for anybody who wants to compose the Korean tradition music with a computer. This tool also enables to standardize writing techniques of Jungganbo because a musical score was done by hands without using an authoring tool. In addition, this authoring tool can be easily used since its environment is very similar to other windows-based programs such as Ms-word and Hwp. Not only the beginners but also the experts can use this authoring tool for their Korean traditional music writing easily.

• The Journal of Korean Academy of Sensory Integration
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• v.14 no.2
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• pp.22-32
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• 2016

Objective : The purpose of study is to investigate the correlation between sensory processing pattern and depression and anxiety of university students. Methods : A designed questionnaire for this study has been distributed to university students for about a month (10th to 29th of August, 2016). The questionnaire is consisted of 5 items for personal characteristics, 60 items for adult/adolescent sensory profile, 21 items from the Beck depression scale-2, and 21 items from the Beck anxiety scale. The data has been collected from 174 university students and analyzed by SPSS version 22.0 for descriptive statistics, cross-tabulation analysis, and Pearson correlation. Results : For depression, there is significant positive correlation with low registration, sensory sensitivity, and sensory avoiding among the sensory processing patterns. For anxiety, all sensory processing patterns are significantly correlated with it. Conclusion : Based on the result of this study, it is recommended for academic staffs or health care professionals to consider the impact of sensory processing patterns on psychological function when they develop an educational program for university students or plan a treatment for young clients.

• Journal of Korean Library and Information Science Society
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• v.48 no.1
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• pp.137-160
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• 2017

OAK(Open Access Korea) is a national repository project to support free access to Korea's open access knowledge information. However various problems and limitations are recognized when organizing and sharing metadata with OAK-IR system. This study aims to suggest a modified metadata standard to improve the quality of OAK metadata. To the end, this study analyzed all metadata elements used by OAK participating organizations and compared the metadata with the metadata of other typical repository systems. In details, metadata organized in 17 OAK participating organizations were analyzed with their metadata specifications, input data examples, and practitioner interviews. And a case study on DSpace, EPrints, BEPress, ETD-db, dCollection was conducted. The final modified OAK metadata elements were suggested through group discussion and coordination by the practitioners of OAK participating organizations, OAK supervisors, and the developers of OAK-IR system.

• Smart Media Journal
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• v.3 no.4
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• pp.16-21
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• 2014

HEVC is the latest joint video coding standard with ITU-T SG16 WP and ISO/IEC JTC1/SC29/WG11. Its coding efficiency is about two times compared to H.264 high profile. Intra prediction has 35 directional modes including dc and planer. However an accurate mode decision on lots of modes with SSE is too costly to implement it with hardware. The key idea of this paper is a DCT shared architecture to reduce the complexity of HEVC intra encoder. It is to use same DCT block to quantize as well as to calculate SSE in RDO. The proposed intra encoder uses two step mode decision to lighten complexity with simplified RDO blocks and shares the transform resources. Its BD-rate increase is negligible at 20% on hardware aspect and the operating clock frequency is 300MHz@60fps on FHD ($1920{\times}1080$) image.

• Journal of Life Science
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• v.21 no.3
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• pp.464-467
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• 2011

Quercetin is a major flavonoid present in onions, which acts as an antioxidant. Quercetin exists both as a free compound and conjugated with carbohydrates, primarily as glucosides in onion. Aged black onion was made through a 30 day aging process in which the onions were kept in an environment of $60^{\circ}C$ and high humidity (90% RH). Quercetin and quercetin glucosides were assayed in onion bulbs before and after the aging process, using high performance liquid chromatography-electrospray ion trap mass spectrometry (HPLC-ESI/MS/MS). Quercetin mono- and diglucosides were identified in fresh onion bulbs, whereas quercetin aglycone was the only form present in aged black onion bulbs. These findings indicate that the quercetin mono- and di-glucosides present in fresh onions undergo complete deglycosylation during the aging process. Such profiling will provide a rapid method that can be used to assess changes in the two major quercetin glycosides during the aging process of onion bulbs.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.28 no.5C
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• pp.523-531
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• 2003

Java applets are downloaded from web server through internet and executed in Java Virtual Machine of clients'browser. Before execution of java applets, JVM checks bytecode program with bytecode verifier and performs runtime tests with interpreter. However, these tests will not protect against undesirable runtime behavior of java applets, such as denial of service attack, email forging attack, URL spoofing attack, or annoying sound attack. In order to protect malicious applets, a technique used in this paper is java bytecode modification. This technique is used to restrict applet behavior or insert code appropriate to profiling or other monitoring efforts. Java byte modification is divided into two general forms, class-level modification involving subclassing non-final classes and method-level modification used when control over objects from final classes or interface. This paper showed that malicious applets are controlled by java bytecode modification using proxy server. This implementation does not require any changes in the web sever, JVM or web browser.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.30 no.3
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• pp.397-403
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• 2020

With the convenience of real-time conversation, multimedia file and contact sharing services, most people use instant messenger, and its usage time is increasing. Because the messengers contain a lot of user behavior information data, in the digital forensic investigation, they can be very useful evidence to identify user behavior. However, some of useful data can be difficult to acquire or recognize because they are encrypted or deleted. Thus, in order to use the messenger data as evidence, the study of message decryption process and message recovery is essential. In this paper, we analyze the database encryption process of the instant messenger, MalangMalang Talkafe, and propose the method to decrypt it. In addition, we propose the methods to identify the deleted messages and recover from the volatile memory area.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.7
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• pp.1743-1749
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• 2015

As smartphones are rapidly supplied, users can easily access video contents anywhere, anytime. So recently, demands for the ability to create one's own mash-up video have been increasing and various video mash-up programs appear to reflect those needs. But, because most existing video mash-up programs can mash up only stored video files, the ability to mash up many videos is limited for smartphones that have restricted memory. In this paper, we have developed a video mash-up application that can easily mash up not only stored videos, but also videos found by chance over the network to make one's own videos.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.31 no.3
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• pp.433-441
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• 2021

Android applications are released across various categories, including productivity apps and games, and users are exposed to various applications and even malware depending on their usage patterns. On the other hand, most analysis engines train using existing datasets and do not reflect user patterns even if periodic updates are made. Thus, the detection rate for known malware is high, while types of malware such as adware are difficult to detect. In addition, existing engines incur increased service provider costs due to the cost of server farm, and the user layer suffers from problems where availability and real-timeness are not guaranteed. To address these problems, we propose an analysis system that performs on-device malware detection through transfer learning, which requires only one-time communication with the server. In addition, The system has a complete process on the device, including decompiler, which can distribute the load of the server system. As an evaluation result, it shows 90.3% accuracy without transfer learning, while the model transferred with adware catergories shows 95.1% of accuracy, which is 4.8% higher compare to original model.

• The Journal of Korean Academy of Sensory Integration
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• v.11 no.1
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• pp.11-27
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• 2013

Objective : This is a descriptive study using a program review collaborative group program by special educator and occupational therapist for supporting children's school tasks, and it is designed to explore how changed school performance skills and to analyze how applied intervention methods including sensory integrative approach. Methods : Participants were 6 male elementary students(5 = 1st grade, 1 = 2nd grade). Pilot program had reviewed and its results used as base for planning main program. Main program was implemented by collaborative process with teacher and occupational therapist for 1 year. School AMPS was used to assess school task participants, and informal motor and process skill observation was used to assess self-help activities. Description of records by professions about intervention strategies through assessments was described as qualitative way. Japanese sensory inventory was used by parents. Results : Through the collaborative process, assessing children, planning and modifying program, establishing intervention strategies were implemented. Self-help abilities in group program were increased much more independently. School task abilities were increased slightly but skills changed irregularly and unexpectedly and their reasons became considered more complex from sensory processing reasons to social and emotional reasons. Conclusion : Sensory integration had benefits for primary group program and more complex intervention strategies became to emerge demands for person- environment-task challenges. Collaborative practice with teacher and occupational therapist was supplement and synergic effect for children and group dynamics. More objective and comprehensive methods for measure collaboration and group effect would be needed in further study.