• Journal of Digital Convergence
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• v.4 no.2
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• pp.51-65
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• 2006

This study is to evaluate the morality of teenagers with regard to features of justice. On the basis of the findings, an online morality level test system is designed and implemented to help students understand themselves better and to increase moral maturity through this self-test method based on Kohlberg's Morality Development Level. The main purpose of this study is to help students test and evaluate their morality, and it will be contributed to slough off egocentrism and to orient a relationship based on a mutual respect by using the embodied system. If this system can be applied successfully, an effective improvement on students' further education guidance may be gained because the test and its results are made in the system simultaneously. Also this easy and fast test system can attain much more economical effects than a written test.

• Journal of Digital Convergence
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• v.12 no.2
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• pp.475-482
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• 2014

A wide variety of contents are now provided along with the development of information appliances. The purpose of this study was to examine what should be considered to boost the quality of mobile device based e-learning contents. For this study, 12 evaluation domains and 26 evaluation items were selected using the Delphi method. The factors to be considered for mobile device based e-learning contents quality are summarized 4 factor. In other words, for the purpose of managing the quality of mobile device based e-learning contents, there exist four areas to be considered, 'foundation', 'contents', 'teaching design' and 'technology.' The findings of this study are expected to contribute to the improvement of the quality of the educational contents.

• Proceedings of the Korea Multimedia Society Conference
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• 2012.05a
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• pp.414-416
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• 2012

정보통신 기술의 발달은 학습 환경에도 많은 변화를 가져왔다. U-learning을 비롯해 많은 학습 방법들이 과거의 제한된 장소에서의 학습이 아닌 언제 어디서든 자유롭게 학습할 수 있는 환경을 제공하고 있다. 본 연구에서는 QR-Code와 U-learning을 이용해 학습자들이 시공간의 제약 없이 학습 할 수 있는 환경을 학습의 장인 학교에 접목시켜 스마트 러닝이 가능하도록 하였다. 학습자들의 흥미를 이끌어내어 원하는 장소에서 원하는 시간에 언제든지 학습이 가능하도록 하여 학습 능력 향상을 기대하고 나아가 자기 주도적 학습에 도움이 될 것으로 기대된다.

• International journal of advanced smart convergence
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• v.5 no.2
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• pp.8-17
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• 2016

Scratch-based programming has come to be known as an effective programming tool because of its graphic instruction modules, which are designed to be assembled like the famous LEGO building blocks. These building block-like structures allow users to more easily program applications without using other more difficult programming languages such as C or Java, which are text-based. Therefore, it poses a good opportunity for application in educational settings, especially in primary schools. This paper presents an effective approach to developing an educational robot for use in elementary schools. Furthermore, we present the method for scratch programming based on the external modules need for the implementation of robot motion. Lastly, we design a systematic curriculum, titled "Play with a Robot," and propose guidelines to using the educational programming language Scratch.

• Journal of information and communication convergence engineering
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• v.4 no.2
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• pp.58-61
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• 2006

A key issue toward mobile multimedia communications is to create technologies for broadband signal transmission that can support high quality services. Such a broadband mobile communications system should be able to overcome severe distortion caused by timevarying multi-path fading channel, while providing high spectral efficiency and low power consumption. For these reasons, an adaptive suboptimum decision feedback equalizer (DFE) for the single-carrier shortburst transmissions system is considered as one of the feasible solutions. For the performance improvement of the system with the short-burst format including the short training sequence, in this paper, the multiple-training least mean square (MTLMS) based DFE scheme with soft decision feedback is proposed and its performance is investigated in mobile wireless channels throughout computer simulation.

• Journal of Digital Convergence
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• v.7 no.3
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• pp.49-60
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• 2009

The aim of this study was to develop a model for teaching-teaming by applying Ubiquitous at a learning experience field, in which connect characteristics of both ubiquitous application learning and experience teaming, making use of them. A literature survey of concepts was conducted, with the main areas to find out relationships between ubiquitous application learning and experience learning. Experience learning by applying ubiquitous learning methods maximizes its efficiency of experience learning in considering ubiquitous learning methods's characteristics of dynamic, interaction, sharing. Also it makes communications through positive participation and active interaction, and leads to a process of internal examination. The research data suggests that critical factors of experiencing learning applying ubiquitous are acquiring information and memory, information integration and exquisiteness, emotional and social activity, producing activity, help activity.

• Journal of information and communication convergence engineering
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• v.4 no.1
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• pp.23-27
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• 2006

The discipline of software performance is very broad; it influences all aspects of the software development lifecycle, including architecture, design, deployment, integration, management, evolution and servicing. Thus, the complexity of software is an important aspect of development and maintenance activities. Much research has been dedicated to defining different software measures that capture what software complexity is. In most cases, the description of complexity is given to humans in forms of numbers. These quantitative measures reflect human-seen complexity with different levels of success. Software complexity growth has been recognized to be beyond human control. In this paper, we have focused our discussion on the increasing software complexity and the issue with the problems being faced in managing this complexity. This increasing complexity in turn affects the software productivity, which is declining with increase in its complexity.

• Journal of information and communication convergence engineering
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• v.16 no.2
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• pp.93-98
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• 2018

The Internet of Things (IoT) is a form of the emerging 4th industry in the 5G era. IoT is expected to develop naturally in our daily life in the 5G era in which high-speed communication will be completed. Along with the rise of IoT, concerns about security and malicious attacks are also increasing. This paper examines DoS attacks, which are one of the representative security threats of IoT and proposes a local detection and blocking system that are suitable for response to such attacks. First, systems of the LoRaWAN type, which are most actively researched in the IoT system field and DoS attacks that can occur in such systems were examined. Then, the inverse order tree algorithm using regional characteristics was designed as a cluster analysis form. Finally, a system capable of defending denial-of-service attacks in the 5G IoT system using local detection and blocking with the Euclidean distance was designed.

• Journal of Multimedia Information System
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• v.7 no.4
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• pp.277-280
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• 2020

Extended reality-assisted training offers repeatable learning opportunities at a low cost. This paper proposes a smart glass application for training core nursing skills to nursing students, who often need to memorize and practice training sequences. The proposed smart glass application interactively presents a series of instructions to help students remember and perform two core nursing skills in the correct order. We conducted a usability test on 30 undergraduate nursing students in their third year using the smart glass application. Our initial findings show that many students have positively evaluated the possibility of using smart glasses for training, but have also encountered several challenges with the smart glass application's user interface, which takes time to adapt.

• Nonlinear Functional Analysis and Applications
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• v.26 no.3
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• pp.451-474
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• 2021

In this paper, we investigate a hybrid algorithm for finding zeros of the sum of maximal monotone operators and Lipschitz continuous monotone operators which is also a common fixed point problem for finite family of relatively quasi-nonexpansive mappings and split feasibility problem in uniformly convex real Banach spaces which are also uniformly smooth. The iterative algorithm employed in this paper is design in such a way that it does not require prior knowledge of operator norm. We prove a strong convergence result for approximating the solutions of the aforementioned problems and give applications of our main result to minimization problem and convexly constrained linear inverse problem.