• Journal of the Korea Convergence Society
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• v.11 no.2
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• pp.45-51
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• 2020

Dental hygienists students are required to be able to interact and maintain relationships with dentists and patients. Therefore, the purpose of this study was to identify the relations affecting interpersonal competence of some dental hygiene students, and to provide the necessary data for nurturing competent dental hygienists. The survey was conducted on 293 dental hygiene students in M university. The level of significance was .05 and the statistical program was SPSS win 25.0. As a result of interpersonal competence according to general characteristics and interpersonal characteristics, significant results were found in the degree of human relations and new environmental adaptability. As a result of correlation analysis between subvariables of interpersonal competence, all showed significant positive correlation. Factors affecting interpersonal competence showed significant positive effects on the degree of human relationship(p=.019) and the new environmental adaptability(p=.001). Interpersonal competence are important in the clinic. Therefore, a convergent analysis of the factors influencing is required.

• Journal of the Korean Geographical Society
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• v.49 no.3
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• pp.423-437
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• 2014

Districting is a spatial decision making process to make a new regional framework for affecting human activities. Natural barriers such as rivers and mountains located within a reorganized district may reduce the efficiency of reorganized human activities. This implies that it is necessary to consider boundary characteristics in a districting process. The purpose of this research is to develop a new spatial optimization model based on boundary characteristics for districting problems. The boundary characteristics are evaluated as continuous value expressing the possibility of combining adjacent two basic spatial units rather than a dichotomous value with 1 or 0 and are defined as an objective function in the model. In addition, the model has explicitly formulated contiguity constraints as well as constraints enforcing demand balance among districts such as population and area. The boundary attributes are categorized into physical and relational characteristics. Suitability analysis is used to combine various variables related to each boundary characteristic and to evaluate the coupling possibility between two neighboring basic units. The model is applied to an administrative redistricting problem. The analytical results demonstrate that various boundary characteristics could be modeled in terms of mixed integer programming (MIP).

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.40 no.1
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• pp.1-9
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• 2003

In this paper, we propose a new method dispersing spatially C(Cyan), M(Magenta), Y(Yellow) instead of K(black) in the bright region. The overlapping of black dots decreases brightness in the dark region, and black dots are very sensitive to human visual system in the bright region. Therefore, to avoid this problem, bright and dark gray region in the color image is considered in the proposed approach. A new method which uses CMY simultaneously in single mask is proposed, and CMY dots are used dispersing spatially for the bright region instead of black dot by this method. And tone curve connection is used to consider the gray level of dark region. In previous method, BNM (Blue Noise Mask) has high granularity and a narrow dynamic range. But the proposed method has the low granularity, wide dynamic range, and high contrast properties. Because the proposed method uses three times dots spatially in the different position than a conventional BNM, it can express more spatial information and a similar gray level compared with BNM.

• The Journal of the Korea Contents Association
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• v.10 no.11
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• pp.146-153
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• 2010

With the advent of new media richness of technology in the digital age has transformed our lives. The development of technology, the more our lives more convenient, new, future-oriented, while expectations for the digital age, people are longing for warm, human sensibility became. Of modernism and post-modernism appeared to reflect the proliferation of digital media in culture, wandering through the complex has been diversifying. In the digital age stabilizing psychological or mental needs of people who want to begin to emerge as the disfunctional aspects of the digital age has been suggested for the problem. To respond to human emotion on the emotional reaction of users to consider the analog emotional design began to emerge. The analog to digital media to express emotions practical approach to the problem should be attempted. Analog in a digital environment, emotional nature of the digital technology and communication, and symbolic and emotional aspects of people as announced to blend the new extension, change, and an analog emotional design for the evolution and development of new possibilities to investigate the castle.

• 한국HCI학회:학술대회논문집
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• 2006.02b
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• pp.290-295
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• 2006

지금까지 디지털 기기의 진화 과정을 볼 때 오직 기능적 발전만이 추구되고 그것을 사용하는 사용방식에 대한 진지한 고민은 부재하였다. 때문에 디지털 기기가 갖고 있는 버튼 위주의 획일적 사용방식은 사용자보다는 기기 중심의 디자인이 우선시되는 사회적 병리현상을 야기하고 있다. 반면 오랜 기간 인간이 다루어 온 전통적인 아날로그 도구들은 작업의 특성과 작업자의 상황에 맞도록 다양한 사용성을 고려하며 진화되어 왔다. 따라서 본 연구에서는 사용자들에게 익숙한 아날로그적 경험을 디지털 기기의 인터랙션 디자인에 적용시켜 보다 인간 중심적인 디지털 도구를 제안 하고자 한다. 연구의 목표는 다양한 기능이 복합된 대표적 디지털 기기인 휴대폰에 아날로그 경험을 접목시킴으로써 전통적인 도구들과 같이 디지털 기기의 자연스러운 인터랙션 스타일을 디자인하는 것이다. 이를 위하여 한정된 디바이스로 다양한 기능들을 조작해야 하는 모바일 기기에 적합한 아날로그 경험들에 대한 연구가 진행되었고, 기호와 조합으로 이루어진 카드놀이 메타포에서 그 단서를 발견할 수 있었다. 따라서 본 연구는 메타포로 제시한 카드놀이를 하며 일어나는 행위와 경험을 멀티미디어 휴대폰에 접목시켜 새로운 사용 방식을 제안하는 것이다. 예를 들어, 메뉴 선택의 경우 카드를 펼쳐 원하는 카드를 뽑으면 되는데 아래로 펼치면 그 카드의 수직 메뉴가, 옆으로 펼치면 그 카드의 수평 메뉴가 나타난다. 또 메뉴 안의 내용을 찾을 때는 카드를 뒤로 넘겨서 보게 되고 자신만의 개인적인 내용을 보고자 할 때는 카드를 은밀히 보는 듯한 행위를 취하면 된다. 즉 멀티미디어 폰 안의 내용뿐 아니라 사용하는 행위 자체도 하나의 즐거움이 되도록 카드놀이 경험을 새로운 인터랙션 스타일로 개발하여 그 가능성을 연구하였다.

• Journal of the Korea Society of Computer and Information
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• v.10 no.4 s.36
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• pp.47-56
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• 2005

With the development of wearable(ubiquitous) computers, those traditional interfaces between human and computers gradually become uncomfortable to use, which directly leads to a requirement for new one. In this paper, we study on a new interface in which computers try to recognize the gesture of human through a digital camera. Because the method of recognizing hand gesture through camera is affected by the surrounding environment such as lighting and so on, the detector should be a little sensitive. Recently, Viola's detector shows a favorable result in face detection. where Adaboost learning algorithm is used with the Haar features from the integral image. We apply this method to hand area detection and carry out comparative experiments with the classic method using skin color. Experimental results show Viola's detector is more robust than the detection method using skin color in the environment that degradation may occur by surroundings like effect of lighting.

• Journal of Life Science
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• v.27 no.9
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• pp.1059-1063
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• 2017

Angiogenesis is an essential step in tumoral growth and metastasis and is regulated by a balance between stimulators and inhibitors. Recently, antiangiogenic target therapy has shown promise as a new type of chemotherapy. Natural products have attracted widespread attention worldwide as a useful source of novel therapeutic compounds. The balloon-flower has long been used as a traditional medicinal material and food in Asia. In this study, we investigated whether extract of balloon-flower would inhibit in vitro angiogenesis and vascular-like network formation in human umbilical vein endothelial cells (HUVECs). The extract of Balloon-flower did not affect the viability of HUVECs. However, treatment with the Balloon-flower extract suppressed tube formation of HUVECs. In addition, after treatment with the Balloon-flower extract, cell migration decreased about 80%, and cell invasion was almost completely inhibited. Taken together, these results suggest that extract of Balloon-flower may have potential as an angiogenic inhibitor and that it could be developed as an anticancer agent.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.9
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• pp.235-244
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• 2016

Automotive symbols are more widely needed for new, convenient driving devices in automobiles. Good automotive symbols should be detectable, identifiable at first glance, easily learned, recognizable, and produce quick responses after practice. In this paper, a methodology for developing and evaluating automotive symbols is suggested. It includes multiple tests, such as comprehension, perceptual quality, appropriateness, and integrated evaluation. 28 symbols were tested and evaluated by the suggested methodology for convenient driving systems, such as a lane departure warning system (LDWS), cruise control (CCS), and a collision warning system (CWS). Most of the KS R ISO 2575 symbols had higher scores of comprehension, perceptual quality, and appropriateness, but the sunroof and camera symbols had lower scores. Standard symbols with several new functions should be developed. This methodology could be useful for developing and evaluating automotive symbols.

• Convergence Security Journal
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• v.19 no.2
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• pp.39-46
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• 2019

Recently, information security accidents are becoming more advanced as social engineering attacks using new types of malicious codes such as phishing. Organizations have made various efforts to prevent information security incidents, but tend to rely on technical solutions. Nevertheless, not all security incidents can be prevented completely. In order to overcome the limitations of the information security approach that depends on these technologies, many researchers are increasingly interested in People-Centric Security. On the other hand, some researchers have applied behavioral economics to the information security field to understand human behavior and identify the consequences of the behavior. This study is a trend analysis study to grasp the recent research trend applying the concept and idea of behavioral economics to information security. We analyzed the research trends, research themes, research methodology, etc. As a result, the most part of previous research is focused on 'operational security' topics, and in the future, it is required to expand research themes and combine behavioral economics with security behavioral issues to identify frameworks and influencing factors.

• Korean Journal of Clinical Laboratory Science
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• v.52 no.4
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• pp.310-316
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• 2020

Microarray technology represents a critical new advance in molecular cytogenetics. The development of this approach has provided fundamental insights into the molecular pathogenesis in clinical cytogenetics and has provided a clue to many unidentified or unexplained diseases. The approach allows a comprehensive investigation of thousands and millions of genomic loci simultaneously and enables the efficient detection of copy number alterations. The application of this technology has shown tremendous fluidity and complexity of the human genome, and has provided accurate diagnosis and appropriate clinical management in a timely and efficient manner for identifying genomic alterations. The clinical impact of the genomic alterations identified by microarrays is evolving into a diagnostic tool to identify high-risk patients better and predict patient outcomes from their genomic profiles. The transformation of conventional cytogenetics into an automated discipline will improve diagnostic yield significantly, leading to accurate diagnosis and genetic counseling. This article reviews cytogenetic technologies used to identify human chromosome alterations and highlights the potential utility of present and future genome microarray technology in the diagnosis.