• Journal of Engineering Education Research
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• v.7 no.4
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• pp.16-21
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• 2004

According to the appearance of various virtual websites using multimedia technologies for engineering education, the internet applications in engineering education have drawn much interests. But unidirectional communication, simple text/image based webpages and tedious learning process without motivation etc. have made the lowering of educational efficiency in cyberspace. Thus, to cope with these difficulties this paper presents a web-based educational Flash movies based on ActionScript language for understanding the principles of the computer system architecture. The proposed Flash movies provides the improved learning methods which can enhance the interests of learners. The results of this paper can be widely used to improve the efficiency of cyberlectures in the cyber university. Several sample Flash movies are illustrated to show the validity of the proposed learning method.

• Journal of the Korean Home Economics Association
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• v.48 no.9
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• pp.27-40
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• 2010

This study attempts to identify the process in which how the Myth of family and gender image are reproduced and taken in by the recipients through semiotics analysis of three versions consisting of children, husband and housewife series of SK corporate's TV advertisements from the last half of year 2009 to the first half of year 2010. The analysis of the corporate advertisements shows that each advertisement binds and stereotypes concept of family and gender to Myth of family, especially case of female, and consequently, the result through text analysis is that corporate advertisements reproduce and restructure traditional Myth of family and role of gender. Going forward, Family study requires to realize importance of effect of mass media, especially of TV advertisement, to research diverse case studies and searching about it.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.1
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• pp.382-403
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• 2020

Steganography is the art of concealing the existence of a secret data in a non-secret digital carrier called cover media. While the image of steganography methods is extensively researched, studies on other cover files remain limited. Videos are promising research items for steganography primitives. This study presents an improved approach to video steganography. The improvement is achieved by allowing senders and receivers exchanging secret data without embedding the hidden data in the cover file as in traditional steganography methods. The method is based mainly on searching for exact matches between the secret text and the video frames RGB channel pixel values. Accordingly, a random key-dependent data is generated, and Elliptic Curve Public Key Cryptography is used. The proposed method has an unlimited embedding capacity. The results show that the improved method is secure against traditional steganography attacks since the cover file has no embedded data. Compared to other existing Steganography video systems, the proposed system shows that the method proposed is unlimited in its embedding capacity, system invisibility, and robustness. The system achieves high precision for data recovery in the receiver. The performance of the proposed method is found to be acceptable across different sizes of video files.

• Journal of Educational Research in Mathematics
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• v.15 no.3
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• pp.273-286
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• 2005

We teach students to explore geometric figures by its properties and establish relationships between some basic figures. The concept of parallel line play very im-portant roles in such geometry learning process. In this study, 1 investigate the con-cept of parallel line we teaching in elementary school. Students have wrong concept images for parallel line, which is the result of the elementary school mathematics text books, where only typical cases for parallel line Is presented and there is no method to find if two lines is parallel or not. Therefore, we should teach explicitly students to find if two lines is parallel or not. The depth study on it is needed to develope students' geometric thought level.

• Journal of Oriental Neuropsychiatry
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• v.25 no.2
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• pp.203-212
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• 2014

Objectives: The aim of this study is to bring new light on TalYeong-SilJeong (exhaustion of Yeonggi and loss of Essence) through the verification of both the original intention of Hwangjenaegyeong and the conceptual variation afterwards. Methods: Of various East Asian medical texts, those inferring to TalYeong-SilJeong includeing Hwangjenaegyeong itself were closely examined under the aspect of its conception. Results: TalYeong-SilJeong was suggested as the first representative tool and accurate diagnostic method of questioning in order to determine the mental state of a patient. However, medical scholars have suggested different levels of meaning. Some used the term for the broad coverage of mental illnesses, understanding Hwangjenaegyeong's discrimination as symbolic gesture, while others projected an unchallenged value on it and weaved it into the concrete set of a disease. Conclusions: The treatment of TalYeong-SilJeong is suggested according to the varying viewpoints of each medical text. By understanding multiple layers of the conception beyond, a clinician is expected to gain an exuberant image of conception on the one hand and an insight for more effective treatment on the other hand.

• Journal of Korea Society of Industrial Information Systems
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• v.8 no.3
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• pp.42-50
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• 2003

E-Learning is a modern main teaching method starting from the concept of remote education. This research is aimed for proposing cyber lecture library system and designing a cyber lecture component that becomes a basis for e-Learning system Cyber lecture library is a storage system of cyber lectures that can supply high quality data to the needed developers. Component consists of 5 categories and those are text voice, image, animation, and flash. By using this system the developers can save the necessary time and effort in education development. This system also helps students. The students can access various lecture data on a given subject and select the best fit for them.

• Journal of Digital Convergence
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• v.6 no.2
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• pp.127-134
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• 2008

The aim of this study is to show that using a Web-Based Instruction system is a better method to help counteract deficient teaching, learning conditions and facilities thus improving the students' interest, understanding, participation and skill development in Physical Education. The key findings of this study are as follows; The first advantage of using this system is that the theory of Softball is explained with the use of pictures rather than text, thus improving the students' understanding. The second is the method in which practical skills are explained and demonstrated. Action image sequences are used as opposed to the old method of using stationary pictures. This means that the learners can clearly see and understand why and, more importantly, how to use these skills. The third advantage is the technique used to teach the application of these skills. Using active rather than passive learning and thus engaging the student encourages improved participation and learning. The fourth advantage comes in evaluation: both subjective and objective questions are asked in theoretical evaluation, and the teachers can evaluate the students' understanding and skill development by filming their actual Softball games. The final advantage is the use of Self-Directed Learning to aid learners' development of understanding of the lesson content as interactions between teachers and learners are constructe

• The Journal of the Korea institute of electronic communication sciences
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• v.3 no.2
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• pp.112-117
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• 2008

HL7 is well-Known standard protocol for text data generated in hospital information systems. Vital sign information web viewer systems is also the standard protocol for medical image and transfer. In order to embrace new technologies as telemedicine service, it is important to develope the standard protocol between different systems in the hospital, as well as the communication with external hospital systems. In this paper, we proposed integration method between vital sign web viewr systems and hospital information systems. Through the proper data exchange and modification of information management, HIS will offer better work flow to all hospital employee.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.3 no.2
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• pp.421-431
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• 1999

NOD systems contain the data of multiple types such as text, image and video, and the size of NOD data depend on their data types. Therefore, in this paper, we propose a Data Placement Method based on Data Types(DPMDT), in which the data placement method depends on their type. Then, we analyze the performance of DPMDT with that of a Time Based Storage Management(TBSM) in which the data placement method depends on their created date, and that of Rate Based Storage Management(RBSM) in which the data placement method depends on their created date and accessed rate. In case of long playback of video news and a few disks(one disk), our results show that the performance of DPMDT is less efficient than that of TBSM and RBSM methods, however, in case of over 2 disks, the performance of DPMDT is more efficient than that of TBSM and RBSM methods.

• Archives of design research
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• v.20 no.1 s.69
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• pp.219-228
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• 2007

Printing advertisement is aggregate of commercial information communication text consisted of image sign and language sign. This means that verbal tabor through visual stimulation and character is mixed and passes information through picture. Typography is process that visualize verbal appeal in printing advertisement. Therefore study about typography is very important for a visual expression element in printing advertisement. Typography expression of Korean printing advertisement accomplished fast qualitative growth after 2000 flowing the 1990s. This study makes that typography expression propensity of Korean printing advertisement after 2000 of changed of expression structure, changed of expression rule, changed of expression method etc. Accordingly, extracted each three analysis bases. And this study presented expansive direction of typography expression of printing advertising in case studies.