• The KIPS Transactions:PartC
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• v.19C no.2
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• pp.83-90
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• 2012

MANET(Mobile Ad-Hoc Network) has a weakness from a security aspect because it operates where no wired network is built, which causes the exposed media, dynamic topology, and the lack of both central monitoring and management. It is especially difficult to detect and mitigate a malicious node because there is not a mediator which controls the network. This kind of malicious node is closely connected to the routing in the field of study of Ad-Hoc security. Accordingly this paper proposes the method on how to enhance the security for the safe and effective routing by detecting the malicious node. We propose MBC(Identification technition of Malicious Behavior node based on Collaboration in MANET) that can effectively cope with malicious behavior though double detecting the node executing the malicious behavior by the collaboration between individual node and the neighbor, and also managing the individual nodes in accordance with the trust level obtained. The simulation test results show that MBC can find the malicious nodes more accurately and promptly that leads to the more effectively secure routing than the existing method.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.5
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• pp.1070-1075
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• 2013

In this research, we describe a security robot system and ongoing research results to control human's wrong direction in order to forbid human to enter security zone. Proposed robot system surveils a security area with equipped laserscanner sensor usually. When it detect walking human who is for the area, robot calculates his velocity vector, plans own path to forestall and interrupts him who want to head restricted area and starts to move along the estimated trajectory. The walking human is assumed to be a point-object and projected onto an scanning plane to form a geometrical constraint equation that provides position data of the human based on the kinematics of the mobile robot. While moving the robot continues these processes for adapting change of situation. After arriving at an opposite position human's walking direction, the robot advises him not to be headed more and change his course. The experimental results of estimating and tracking of the human in the wrong direction with the mobile robot are presented.

• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.481-481
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• 2017

최근 기후변화로 인해 국내 기상특성이 변화하고 그에 따라 홍수, 가뭄(건천화) 및 폭염 등 물 관련 재해 발생 빈도가 증가하고 규모 또한 점점 커지고 있다. 또한, 세계적으로 태풍 및 가뭄발생 빈도도 꾸준히 증가하고 있어 정확한 예측 및 즉각적 대처능력 확보를 위한 방안이 필요한 실정이다. 아울러 급격한 도시화로 인한 빈번한 내수범람 및 유역차원의 홍수범람 등으로 인해 재난발생 시 그 피해가 극대화로 직결되고 있어 재난 시 발생할 수 있는 피해 현황을 정확하게 예 경보하기 위한 실시간 수재해 정보 서비스 및 모니터링이 가능한 통합 관리 기술이 필요하다. 이를 위해 현실에서 실시간으로 수재해 관련 부가정보를 영상으로 표출하고, 이를 종합적으로 분석하여 서비스할 수 있는 증강현실 모니터링 시스템을 개발 하고자 한다. 이를 통해 홍수, 가뭄(건천화) 및 태풍 등 물 관련 재해 현황을 실시간으로 감시하고 예측하여 대처 할 수 있는 정보 생산과 서비스 및 모니터링 등의 통합 관리가 가능할 것으로 판단된다. 이에 본 연구에서는 사용자가 손쉽게 소통할 수 있는 수재해 정보 서비스 구현을 위한 맞춤형 기술을 개발하고자 빅데이터 기반의 수재해 정보 증강현실(AR) 적용성 연구를 수행하였다. 이를 위해 재해 발생 시 빠르게 대처하기 위한 시스템을 구축하고자 관리자 및 사용자를 고려한 GUI 설계 및 수재해 정보의 Global 위성지도 기반 3D 시각화 적용을 위한 방안을 제시하고자 한다. 향후 스마트폰 기능을 적극적으로 활용하여 재해 대처 방안 및 행동 요령을 효과적으로 전달함으로써 재난 피해를 줄일 수 있는 애플리케이션(App) 개발을 진행할 예정이다. 개발된 증강현실 모니터링 시스템은 수재해 정보 서비스를 향상시키고 효율적인 예방 및 대처를 실현함으로써 국가 물 관련 재해를 혁신할 수 있는 기술을 확보하는 소중한 토대가 될 것으로 사료된다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.10a
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• pp.573-575
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• 2016

Consumption habits of children who economic consumption habits has not been established is a very big concern for parents. According to the credit recovery committee (2006) youth consumption behavior and needs assessment of the education of, he answered that 60.9% of young people have experienced the impulse buying. Student consumption of is done in pin money to receive almost to the parent. Most of the pin money, in order to be paid in cash, is often consumed with the payment directly in the offline sales floor. Pin money is, or waste to students senseless consumption, to trick the price of the purchase goods, to parents, so as to require a greater amount without parental monitoring and agree. In this paper, we would like to propose a system to solve the problem of giving the authority to make decisions off-line payment from student to the parent.

• Journal of the Korea Society of Computer and Information
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• v.26 no.3
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• pp.35-42
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• 2021

In this paper, we propose a deep learning-based person re-identification method using a three-dimensional RGB-Depth Xtion2 camera considering joint coordinates and dynamic features(velocity, acceleration). The main idea of the proposed identification methodology is to easily extract gait data such as joint coordinates, dynamic features with an RGB-D camera and automatically identify gait patterns through a self-designed one-dimensional convolutional neural network classifier(1D-ConvNet). The accuracy was measured based on the F1 Score, and the influence was measured by comparing the accuracy with the classifier model (JC) that did not consider dynamic characteristics. As a result, our proposed classifier model in the case of considering the dynamic characteristics(JCSpeed) showed about 8% higher F1-Score than JC.

• Journal of Popular Narrative
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• v.26 no.1
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• pp.243-277
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• 2020

This paper examines a social and cultural history of horror films through the keyword "technology", focusing on The Spark of Fear: Technology, Society and the Horror Film (2015) written by Brian N. Duchaney. Science fiction film is closely connected with technology in film genres. On the other hand, horror films have been explained in terms of nature/supernatural. In this regard, The Spark of Fear, which accounts for horror film history as (re)actions to the development of technology, is remarkable. Early horror films which were produced under the influence of gothic novels reflected the fear of technology that had been caused by industrial capitalism. For example, in the film Frankenstein (1931), an angry crowd of people lynch the "monster", the creature of technology. This is the action which is aroused by the fear of technology. Furthermore, this mob behavior is suggestive of an uprising of people who have been alienated by industrial capitalism during the Great Depression. In science fiction horror films, which appeared in the post-war boom, the "other" that manifests as aliens is the entity that destroys the value of prosperity during post-war America. While this prosperity is closely related to the life of the middle class in accordance with the suburbanization, the people live conformist lives under the mantle of technologies such as the TV, refrigerator, etc. In the age of the Vietnam War, horror films demonize children, the counter-culture generation against a backdrop of the house that is the place of isolation and confinement. In this place, horror arises from the absolute absence of technology. While media such as videos, internet, and smartphones have reinforced interconnectedness with the outside world since the 1980s, it became another outside influence that we cannot control. "Found-footage" and "torture porn" which were rife in post-9/11 horror films show that the technologies of voyeurism/surveillance and exposure/exhibitionism are near to saturation. In this way, The Spark of Fear provides an opportune insight into the present day in which the expectation and fear of the progress of technology are increasingly becoming inseparable from our daily lives.

• Management & Information Systems Review
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• v.31 no.4
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• pp.167-195
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• 2012

This study focuses on the characteristic of socio-psychological gender of a consumer except a biological gender. Socio-psychological gender is the self-image of a consumer which is related to the gender role. The goal of this study is, first, to examine if socio-psychological gender has more effect on the purchase intention than biological gender. Second, by classifying a group with femininity among socio-psychological gender, it is to examine what kinds of shopping value it aims at. Finally, it is to examine the difference between men and women from the purchase intention according to the circumstances. The result of this study is summarized as follows. First, a consumer can have both characteristics of biological gender and socio-psychological gender. There are masculinity, femininity, bisexuality, and undifferentiated type for the classification of socio-psychological gender. This study shows that there is relatively much bisexuality which has masculinity and femininity at the same time. The outcome showed that the purchase intention was higher for the product which corresponds to socio-psychological gender of a consumer than biological gender. Second, it indicated that a group with femininity pursued pleasurable shopping as compared to a group with masculinity. By contrast, it showed that a group with masculinity aimed at practical shopping more greatly. Finally, it showed that while women are less sensitive to the purchase intention at the male-dominated circumstances, men's purchase intention get lower at the female-dominated circumstances.

• (The)Study of the Eastern Classic
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• no.69
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• pp.297-324
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• 2017

Recognizing that the ideological nature of Taoist Gwonseonseo whose publication was concentrated during the reign of King Gojong was connected to that of Jeoseungjeon, a Hangul manuscript novel in the 19th century, this study set out to examine the periodic significance of Taoist Gwonseonseo in the 19th century and check the ideological nature of Jeoseungjeon. Taoist Gwonseonseo puts an emphasis on Confucian ethics including loyalty and filial piety in a didactic aspect and shows that the practice of Confucian ethics brings good fortune, which was prominent in many private Taoist books that were huge hits in the latter part of Joseon, when Chinese Taoist Gwonseonseo was introduced in Joseon, translated and circulated in Korean, and spread widely among the public. Those works offer very specific cases of individuals doing good or evil deeds in this world and suffering the consequences in the next world. Jeoseungjeon presents the Buddhist experiences with the next world as the foundation with the next world depicted around the Great Jade Emperor, who emphasizes Confucian ethics, and the hierarchy of Taoist gods under the ultimate the Great Jade Emperor, thus clearly demonstrating the combination pattern of Confucianism, Buddhism, and Taoism in the latter half of Joseon. The work describes the scenes of judgment and punishment in the next world according to the witness of the main character and thus gives specific ideas of daily goods, which is a feature found in the latter half of Joseon different from the previous pattern of next world experiences. It is Taoist Gwonseonseo widely spread among the people those days that connects the link.

• Korean journal of food and cookery science
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• v.26 no.5
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• pp.603-616
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• 2010

Based on recent dramatic increases in foodborne outbreaks in restaurants, self-managed sanitation systems are now recommended to control contributing risk factors. This study aimed to improve sanitation management practices in restaurants and had two objectives. First, we tried to develop a self-managed sanitation check-list, including risk factors contributing to foodborne illness and Korean food hygiene regulation articles. We also tried to evaluate current sanitation management practices in restaurants according to operation and restaurant type. Thirty restaurants were evaluated by on-the-spot inspectors using an auditing tool consisting of four dimensions, seventeen categories, and forty-one items. Total compliance rate categorized by operation type significantly differed between chain restaurants and self-managed restaurants, with values of 85.5% and 51.6%, respectively. Therefore, self-managed restaurants, which showed the lowest compliance rate of below 30.0%, need more strict control to improve current unsanitary management practices, specifically relating to 'sterilization of knives, chopping boards, and wiping cloths', 'sanitation training', 'not allowing access into the kitchen to outsiders', 'handling of food or utensils on shelves at a 15 cm distance away from floor', 'prevention of cross-contamination of cooked foods or vegetables', and 'records of kitchen access or inspection'. Thus, an effective food sanitation system is essential and should be implemented to improve the existing sanitary conditions in restaurants. However, the most important factor to achieving food sanitation management objectives is food handlers' self-motivation.

• The Journal of Korea Assosiation for Disability and Oral Health
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• v.9 no.1
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• pp.46-50
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• 2013

Developmental disorders are a group of psychiatric conditions originating in childhood that involve serious impairments in different areas. These disorders comprise language disorders, learning disorders, motor disorders and autism spectrum disorders. Midazolam is a short-acting drug in the benzodiazepine class developed by Hoffmann-La Roche in the 1970s. The drug is used for treatment of acute seizures, moderate to severe insomnia, and for inducing sedation and amnesia before medical procedures. It possesses profoundly potent anxiolytic, amnestic, hypnotic, anticonvulsant, skeletal muscle relaxant, and sedative properties. The anterograde amnesia property of midazolam is useful for premedication before surgery to inhibit unpleasant memories. This article presents a case report including caries treatment of a 8-year-old male patient with developmental disorders using oral midazolam premedication as an alternative method of behavior management prior to general anesthesia.