• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.1
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• pp.267-274
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• 2021

The purpose of this study is to investigate differences in learning flow and teaching presence according to the lecturer's appearance and the lecturer's speech rate. For this experiment, 183 freshman students from Xingtai University in China were selected as subjects of the experiment, and a total of four types of lecture videos were developed to test the lecturer's appearance and their speech rates. Data was analyzed through multivariate analysis of variance. According to the results of the analysis, first, learning flow and teaching presence of groups who experienced the presence of the lecturer appeared were significantly higher than the groups who learned without the appearance of the lecturer. Second, the groups who learned from videos with a fast speech rate showed higher learning flow and teaching presence than the group who learned at a slow speech rate. Third, there were no significant differences in both learning flow and teaching presence according to the lecturer's appearance and speech rate. This result provides a theoretical and practical basis for developing customized videos according to learners' characteristics.

• Korean Journal of Cognitive Science
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• v.10 no.1
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• pp.57-66
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• 1999

We believe that science experiments in a laboratory are essential for science education. Scientific experiments begin with situations set by selecting and locating tools and reagents. and by proper experimental behavior, and thereafter situations are changed by natural laws and intermediate experimental behavior. While scientists and students do experiments, they build a cognitive model internally, do causal reasoning on the model to derive system behavior, and then learn scientific truth. We suggest not only a representation method for a 2-dimentional model and for ontological entities necessary in causal reasoning, but also an inferencing method to derive behavior. Chemistry experiments are chosen for the implementation. For the ontological entities, we consider experimental tools, reagents and their heirarchical structures, physics and chemistry natural laws, and functional abstraction knowledge. In order to show the usefulness of our methods, we have developed a program, called ACUArtificial Chemistry Laboratory), which provides an experiment environment where students can do non-predetermined experiments, and shows experiment려 system behavior similar to what happens in the same situation in a real world and descriptions about why it happens.

• The Journal of the Korea Contents Association
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• v.18 no.3
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• pp.592-600
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• 2018

As the field of robots is evolving to intelligent robots that can replace even humans' mental or emotional labor, 'robot ethics' needed in relationship between humans and robots is becoming a crucial issue these days. The purpose of this study is to consider the ethics of robots and humans that is essential in this post-human age. It will deal with the followings as the main contents. First, with the cases of developing ethics software intended to make robots practice ethics, the authors begin this research being conscious about the matter of whether robots can really judge what is right or wrong only with the ethics codes entered forcibly. Second, regarding robot ethics, we should consider unethicality that might arise from learning data internalizing human biasness and also reflect ethical differences between countries or between cultures, that is, ethical relativism. Third, robot ethics should not be just about ethics codes intended for robots but reflect the new concept of 'human ethics' that allows humans and robots to coevolve.

• Journal of Korean Academy of Nursing Administration
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• v.4 no.1
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• pp.33-71
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• 1998

본 연구의 목적은 한국의 간호사들이 행하는 간호중재를 규명하는 것이다. 연구대상은 한국의 2 병원에서 일하는 수 간호사와 평 간호사를 포함한 443면의 간호사이며, 연구도구는 Iowa Intervention Project Team 이 개발한 336 문항의 5점 척도로 이루어진 "간호중재"설문지를 사용하였다. 5점 척도는 다음과 같다 : (a) 거의 행하지 않는다 : (b) 거의 한달에 한번 행한다 : (c) 거의 일주일에 한 번 행한다 : (d) 거의 하루에 한 번 행한다 : (e) 하루에 여러 번 행한다. 한국자료를 위해 설문지는 본 연구자에 의해 한글로 번역되었고, Back-translation을 이용하여 한글로 번역한 설문지는 다시 bilingual nurse에 의해 영어로 옮겨졌고, 마지막으로 영어로 옮겨진 설문지를 원래의 영문으로 된 설문지와 비교한 후에(Equivalence Test) 수정${\cdot}$보완하여 사용하였다. 한국 간호사들은 336 간호중재 모두를 행하고 있으며, 21개의 간호중재가 적어도 하루에 한 번 정도는 이루어지고 있었다. 간호사들은 "생리적 : 복합영역"에 속하는 간호중재를 가장 빈번하게 행하였고, 이 중에서 "비경구적 투약"은 일주일에 거의 11번 정도로 가장 많이 행하여졌다. 가장 적게 행하는 간호중재는 "동물이용요법"이었다. 간호사들은 교육을 많이 받을수록, 임상경험이 많을수록 더 많은 간호중재를 빈번하게 행했다. 특히, 석사학위를 받은 간호사는 "행위 영역"에 속한 간호중재를 더 많이 행했는 데, 예를 들면 "적극적 경청", "적응 증진", "의사결정지지"등이다. 또한 4년제 대학을 졸업한 간호사들은 "생리적 : 복합영역"에 속한 간호중재들을 전문대학을 졸업한 간호사보다 더 많이 행했는 데, 예를 들면, "뇌부종 관리", "반사 장애 관리", "기구를 사용한 호흡"등이다. 10년 이상의 경험을 가진 간호사들은 "행위 영역"에 속한 간호중재를 임상 경험이 1년 미만이거나 또는 1-5년 사이의 경험을 가진 간호사보다 더 많이 행했는 데, 예를 들면, "죄책감 극복 증진", "진실 말하기"등이다. 또한 6-10년 사이의 임상경험을 가진 간호사들은 "자가 간호영역"에 속한 "옷 입히기", "두발 간호", "구강건강 유지" 등을 임상경험이 1년 미만인 간호사들보다 더 빈번하게 행했다. 이 연구는 간호중재 규명이 간호원가 산출을 위한 연구와, 간호의 질 향상을 위한 연구, 간호지식 탐구를 위한 연구에 공헌할 것을 기대한다.

• Journal of Korean Academy of Nursing
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• v.19 no.1
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• pp.5-23
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• 1989

This experimental study was undertaken to gauge the possibility of application and extension of a program for hypertension care to be operated by Community Health Practitioners. Four community health posts were selected. Two places were experimental groups and the other two control groups. The study was carried out from April 1987 to March 1988. In this study the hypertensives were screened form a group of adults who were over 20 years old. The rate of prevalence was 10.7% in the experimental group, and 11.1% in the control group. The hypertension care program was composed of three parts : regular care by CHPs, reinforcement of education and family support for the changing of health beliefs. The data for this analysis is based on 109 the hypertensives, with 78 from the experimental group and 31 from the control group. After the program was completed, the results obtained were as follows ; 1) Sick role behavior compliance in the experimental group were significantly higher than the control group. 2) Blood pressures were decreased in both systolic and diastolic in the experimental group. Diastolic pressure was strikingly decreased from those of the control group and showed statistical significance (p＜0.05). 3) In the experimental group, benefits, perceived family support and family support behavior were high, out benefits was significantly higher than those of the control group(p＝0.000). Sensitivity, seriousness and barriers were high in the control group, but not statistically significant. 4) In conclusion, it is revealed that hypertension care program developed in this study has an effect of decreasing blood pressure and promoting sick role behavior compliance.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.16 no.2
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• pp.55-72
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• 2017

Autonomous Vehicles(AV) are considered as an alternative to solve various social problems. Many researches which are related to developing technologies and AV operations have been conducted vastly and on-going. However, there seem to be little studies on various influences of AI algorithm on driving installed in AV. This study aims to examine the impacts of the ethical decisions made by Utilitarianism-based AI in AV when the oncoming car crossed over the central line. It establishes scenarios about situation of encroaching a central line and analyzes traffic impacts of ethical decision made by AV. According to the results of the analyses, as th accident occurs, overall speed of traffic decrease. There is a negative impact on the traffic flow when AV made an Utilitarian-based ethical decision by changing the lane. However, when AV choose to collide head-on, there is a positive effect to relieve traffic flow with an assistance of CACC, equipped.

• Journal of the Korean Geographical Society
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• v.49 no.2
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• pp.178-199
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• 2014

Changwon Industrial Complex is commonly framed as the best example of strong initiative of the Korean developmental state. And this explanation has been given in the theoretical frame of 'neo-Weberian accounts' i.e., strongly 'national-territorial' and state-centric terms of the predominant. I argue that a geopolitical economy approach focusing on the historical background of the development of Changwon Industrial Complex will shed light on crucial sociospatial dimensions of the Korean developmental state's industrial complex success. I examine, in particular, the multi-scalar processes through which the changes of the industrial complex building plans for the promotion of machine industry in 1960's have been influenced by the complex and dynamic interactions among social actors acting at diverse geographical scales. I show that the formation of the industrial complex in Korea was more heavily influenced by the interactions, contestations, and collaborations among social actors, acting in and through the state, rather than by the state initiative.

• Journal of the Korean Society for information Management
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• v.25 no.3
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• pp.209-230
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• 2008

This study is based on the practical use for distributed resources considering growing network rapidly. The focal point of this study will be argued on semantic interoperability for sharing of resources, not be emphasized the technical issues of network. The aim of this article is developing the model of Collection-Level Description(CLD) for sharing of resources. The present article consists of a definition of collection in relation to the scope, objectives, and agents of the collection and an analysis of researches about CLD strengths and standards. Lastly, it was intended to construct the model focused on relation which was needed to be strengthened the existing CLD's function, thus, this study attempted to use the concept of ontology. The model of CLD based on ontology suggested the description could represent new relations inferred between classes and properties. Distinguishing class and property, furthermore, this study suggested properties were separated the characteristic of class and the relation with classes.

• KIPS Transactions on Computer and Communication Systems
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• v.1 no.1
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• pp.47-54
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• 2012

Video contents in the mobile environment are processed with the low bit-rate relative to normal video contents due to the consideration of network traffic; hence, it is necessary to protect the copyright of the low bit-rate video contents. The algorithm for watermarking appropriate for the mobile environment should be developed because the performance of the mobile devices is much lower than that of personal computers. This paper suggested the invisible spread spectrum watermarking method to the low bit-rate video contents, considering the low performance of the mobile device in the M-Commerce environment; it also enables to track down illegal users of the video contents to protect the copyright. The robustness of the contents with watermark is expressed with the correlation of extraction algorithm from watermark removed or distorted contents. The results of our experiment showed that we could extract the innate frequencies of M-Sequence when we extracted M-Sequence after compressing the contents with watermark easily. Therefore, illegal users of the contents can be tracked down because watermark can be extracted from the low bit-rate video contents.

• Journal of the Korea Society for Simulation
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• v.27 no.1
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• pp.1-13
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• 2018

Earthwork planning is one of the critical issues in a construction process management. For the construction process management, there are some different approaches such as optimizing construction with either mathematical methodologies or heuristics with simulations. This paper propose a simulated earthwork scenario and an optimal path for the simulation using a reinforcement learning. For reinforcement learning, we use two different Markov decision process, or MDP, formulations with interacting excavator agent and truck agent, sequenced learning, and independent learning. The simulation result shows that two different formulations can reach the optimal planning for a simulated earthwork scenario. This planning could be a basis for an automatic construction management.