• Journal of The Korean Association of Information Education
• /
• v.11 no.1
• /
• pp.1-9
• /
• 2007

The purpose of this study is to develope a criterion for evaluation on game-type learning programs by the application of HCI(Human Computer Interaction) theory. And to analyze game-type learning programs for elementary students on the criterion developed in this study. The HCI theory, which deals with principles or methods for developing systems people can use conveniently and pleasantly, has been applied to overall area of program development. And it also has been widely used to evaluate learning programs. However, there have been few studies on a game-type learning program evaluation on the basis of the HCI theory. This paper shows that evaluation criteria are developed on three viewpoint bases : usefulness, usability, and affect which are as elements in HCI. And analyzes the game-type learning programs from these three points of view. The evaluation criteria developed in this study can be applied to a basis for evaluation on game-type learning programs, and the analysis will be able to be a useful guide to game programers as well as its users.

• Journal of Periodontal and Implant Science
• /
• v.37 no.3
• /
• pp.599-611
• /
• 2007

The present study was performed to evaluate the surface roughness and effect of Tetracycline-HCI on the change of implant surface microstructure according to application time. Ti$O_2$ surface Implant was utilized. Implant surface was rubbed with 50mg/ml Tetracycline-HCI solution for 0.5min, 1min, 1.5min, 2min, 2.5min and 3min respectively in the Tetracycline-HCI group. Then, specimens were measured surface roughness and processed for scanning electron microscopic observation. The results of this study were as follows. 1. Ti$O_2$ blast implant surface showed increased surface roughness 1.5 minute after treatment with Tetracycline-HCI. But, there were not significant differences in saline group after treatment. 2. Tetracycline-HCI group showed changed surface micro-morphology in SEM after 1.5 minute. There were not significant differences in saline group after treatment. 3. Between Tetracycline-HCI group and saline group, there were difference in surface roughness change and SEM micro-morphology. Tetracycline-HCI have influence on Ti$O_2$ blast implant surface. In conclusion, the detoxification with 50mg/ml Tetracycline-HCI must be applied respectively with different time according to various implant surfaces.

• Journal of the HCI Society of Korea
• /
• v.1 no.1
• /
• pp.63-71
• /
• 2006

For many years, the approach taken towards HCI(Human Computer Interaction) has focused on the usability of system and technology. Advances in computing and information technology has shifted the way people use and experience technology from merely using it to enjoying using it. But, there is a lack of theories to conceptualize fun and user fun experience, in the HCI. This paper describes an conceptual approach to "fun" and user's 'fun experience' in the interaction of technology. This paper defines "fun" as positive psychological energy which is produced by playing computer. And this paper provides characteristics of 'Fun experience', which are action mode, random order, free, and activated pleasant. This study provides insights into factors contributing to and influencing fun experiences and the relationships between them; symbol, newness, and vividness.

• Archives of design research
• /
• v.9
• /
• pp.101-114
• /
• 1994

This study deals with the issue of actual HCI design embodiment through the investigation on how to interpret and use visual expression means in HCI design in a semantic way. The purpose of this study is to provide the method by which designers can make the user-centered guidelines in HCI design. As a part of the user\ulcornercentered design approaches, this study is based on the understanding of user group types which are divided by his/her extent of exposure to computer especially and is focussed on applying the level of each group's apprehension of visual expression means to the embodiment of HCI design. Major findings of this study are: First, it proposes the 'Visual Tokens Models' as a basic source for the understanding and the embodiment of visual expression means in HCI design; Second, it has examined the correlations between the characteristics of Visual Tokens and user group types that is, naive users, casual users, and expert users; Third, it proposes guidelines for the user-centered embodiment of HCI design in accordance with the correlations.

• 한국정보교육학회:학술대회논문집
• /
• 2006.01a
• /
• pp.301-306
• /
• 2006

본 논문의 목적은 HCI 이론에 근거하여 교육용 웹 코스웨어 개발에 중요한 요소인 인간과 컴퓨터의 상호작용에 기반한 연구를 통해 HCI 기반의 효율적인 웹 코스웨어의 설계 방안을 마련하고자 한다. HCI가 최종적으로 달성하고자하는 목표는 해당 시스템을 사용하는 사람들에게 최적의 경험을 제공하는 것이며 시스템 개발에서 최적의 경험은 유용성(usefulness), 사용성(usability), 감성(affect)의 조건에 있다. 교육용 웹 코스웨어를 설계할 때 HCI 이론의 중요한 요소인 사용자 인터페이스를 고려하고 학습자와의 상호작용을 극대화시킬 수 있는 설계 지침을 제시하여 학습자들이 편리하고 즐겁게 학습에 임할 수 있는 웹 코스웨어 설계의 기초자료로서 도움이 될 수 있을 것이다.

• JSTS:Journal of Semiconductor Technology and Science
• /
• v.16 no.2
• /
• pp.191-197
• /
• 2016

In this paper, we investigated the hotcarrier injection (HCI) mechanism, one of the most important reliability issues, in 10 nm node Input/Output (I/O) bulk FinFET. The FinFET has much intensive HCI damage in Fin-bottom region, while the HCI damage for planar device has relatively uniform behavior. The local damage behavior in the FinFET is due to the geometrical characteristics. Also, the HCI is significantly affected by doping profile, which could change the worst HCI bias condition. This work suggested comprehensive understanding of HCI mechanisms and the guideline of doping profile in 10 nm node I/O bulk FinFET.

• Journal of Veterinary Clinics
• /
• v.6 no.1
• /
• pp.173-184
• /
• 1989

The effect of propionylpromazine, acepromazine maleate, ketamine HCI, xylazine HCI, and pentobarbital sodium as chemical restraint drugs on the transit time of barium sulfate through the stomach and duodenum in 24 healthy cats was investigated. In the present study, propionylpromazine, acepromazine maleate, and ketamine HCI did not reveal significant effect on the gastroduodenal transit time, but xylazine HCI and pentobarbital sodium pro-longed the gastroduodenal transit time markedly compared with control group. Therefore it is concluded that propionylpromazine, acepromazine maleate, and ketamine HCI could be selected for upper gastrointestinal radiographs. but xylazine HCI and pentobarbital sodium should be avoided.

• 한국HCI학회:학술대회논문집
• /
• 2006.02b
• /
• pp.435-441
• /
• 2006

블로그는 사이버 공간에서 자신을 표현할 수 있는 효과적인 도구로 사용되고 있으며 그 개방적인 특성으로 인해 다른 사람들과 교류할 수 있는 기회를 증대시켰다. 따라서 블로그는 사이버 상에서 사람들이 특정한 인상을 만들어 내고 그것을 받아들이는 과정이 활발히 일어나는 공간이라 할 수 있다. 본 연구는 블로그 사용자들을 대상으로 한 심층 인터뷰를 통하여 사이버 인상 형성에 영향을 주는 구체적인 표현 요소와 의도한 인상과 지각된 인상과의 관계에 대하여 분석하였다. 사람들은 사이버 공간에서 긍정적인 자신의 모습을 만들고자 하며 의도하는 인상 차원에 따라 사용하는 표현요소에서 차이를 보였다. 또한 직접적으로 의도하지 않은 표현 요소가 인상을 지각하는데 있어 영향을 주고 있다는 사실을 확인하였다.

• 한국HCI학회:학술대회논문집
• /
• 2006.02b
• /
• pp.103-111
• /
• 2006

본 연구는 글자색과 바탕색간의 휘도대비에 따른 가독성의 변화를 알아보고. 이때 이 관계가 화면의 크기와 가독량에 따라 어떻게 달라지가를 살펴 보고자 하는데 그 목적이 있다. 실험의 외적 타당도를 높이기 위해 실험에서 알아보고자 하는 변인 이외의 요인은 선행 연구들에서 나타난 최적 수치를 적용하여 통제하였고2번의 사전실험을 통해 가독량과 휘도대비의 단계를 결정하였다. 실험결과, 글자색과 바탕색의 휘도대비는 quadratic한 관계를 보였고 곡선의 만곡점은 C값 0.951로 나타났다. 만곡점으로 나타난 이 적정치 값은 화면의 크기와 가독량과는 상관없이 항상 동일하게 나타났다. 이것은 화면의 크기와 가독량에 상관없이 휘도대비가 최대일 때 가독성이 최대가 아니며 휘도대비의 적정치 값을 벗어나게 되면 가독성이 떨어지고 피로도가 높아진다는 것을 의미한다.

• Journal of Korea Soil Environment Society
• /
• v.5 no.1
• /
• pp.45-54
• /
• 2000

Several chemical washing procedures were applied to Zn and Cd contaminated soil. Batch and column tests were performed to determine the metal extraction efficiency as a function of pH and concentration. Washing efficiencies by water and NaOH are very low but those by HCI, EDTA and Oxalic acid are high. The most efficient washing occurs in case of using HCI because heavy metal is ionized easily at the condition of low pH. EDTA and Oxalic acid are also effective to extract Zn and Cd because they have a high complexation affinity for heavy metals forming active surface complexes. More Zn is released than Cd is and release trend is increased as pH is decreased and concentration of washing solution is increased. When heavy metal contaminated soil is remediated, HCI and EDTA are more effective to remove Zn than others are. Meanwhile HCI and Oxalic acid are more effective to remove Cd than others are.