• Journal of Digital Convergence
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• v.13 no.8
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• pp.331-336
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• 2015

Lately, the development and utilization of technology of the Internet of Things(IoT), and Fintech have been on the rise and amid the emerging convergence of system and service, mobile payment system and location based service technology have received much attention. Considering the fact that smartphone users are currently utilizing mobile payment frequently, many corporations are introducing various methods to the market for easy payment process of consumers by grafting various technologies, and by utilizing the technology based on BLE technology and location based technology, it is emerging as new method applied to payment service such as ZEP, for easy payment process. And by checking the existence of security threats and studying the attack techniques in these payment services, we strive to suggest a method of response based on big data platform.

• Journal of Environmental Health Sciences
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• v.46 no.5
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• pp.599-609
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• 2020

Objectives: Coronavirus disease 2019 (COVID-19) first emerged in December 2019 in Wuhan, China, and has rapidly become a global pandemic with over 26.4 million confirmed cases and approximately 871,000 fatalities worldwide as of this writing. In the Republic of Korea, disease clusters frequently occurred in long-term care hospitals where the majority of residents are elderly with underlying medical conditions. Despite the fact that public health authorities and local community health centers have put tremendous efforts into preventing the spread of disease, positive cases have continued to occur. Thus, the Korea Centers for Disease Control & Prevention rapid response team decided to conduct an environmental investigation of a long-term care hospital to identify whether environmental contamination has remained and contributed to the spread of COVID-19. Methods: An environmental investigation was conducted at Hospital A. The characteristics of the facility and its HVAC system were assessed by checking the layout and interviewing the people in charge. A total of 64 surface samples were collected from areas of concern, including patient rooms, toilets, elevators, and nurses' station. These samples were tested by a regional health and environmental research institute using real-time reverse transcription polymerase chain reaction. Results: All samples from Hospital A were confirmed to be negative. Through interviews with high-level personnel at the regional community health center, we found that extensive disinfection is frequently performed on potentially contaminated areas in Hospital A in accordance with government guidelines. Conclusion: The environmental control measures implemented in Hospital A had been sufficient for mitigating the risk of further infection, suggesting that such measures may also be effective for other long-term health care facilities.

• Journal of the Korean Society of Costume
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• v.18
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• pp.351-359
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• 1992

The purpose of this study is to analyze the costume in $\ulcorner$The Goddess Abides$\lrcorner$ of Pearl S. Buck by applying "Dramaturgical Analysis" of Erving Goffman. The frame of analysis is the dramaturgical conception of Goffman that he expressed in $\ulcorner$The Presentation of self in Everyday Life (1959)$\lrcorner$. Among the conception, I analyzed by applying 'performance', 'technique of impression management', 'region and region behavior' which can be used for studying and costume behavior. The following is the summary of my study. First, the performance means the performer's behavior and the procedure of impression management if face to fact interaction, which includes personal front and setting. Setting is mainly a house on the Mt. in Vermont. The time is Winter. The personal front includes appearance and manner. actors and audiences form impression through persional front. And Istudied the performance of the actors (or actress), Edith, Jared, Edmond, Edwin, Amelia, June. As for technique of impression management, I cold observe that a varieth of that were being used, such as the most general one that Edith wants to look beautiful by making god appearance, or she sometimes try not to look beautiful And when Edith meets Jared, sometimes she changed her clothes, but other times she doesn't do that. As for region and region behavior, there appears the distinction of region and a lot of expressions about clothes related to the distinction. I could observe the expressions showing the movement from front to back and from back to front. Especially I could observe the behaviors that can be occured only in back region in everyday life, that is bathing, changing clothes, making up, checking their appearance before the mirror. Like above when I analyzed $\ulcorner$The Goddess Abides$\lrcorner$ of Pearl S. Buck by Goffman's Dramaturgical analysis, I could find out that the theory was very useful to the analysis of the costume behaviors of the characters.

• Transactions of the Korean Society of Automotive Engineers
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• v.23 no.5
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• pp.463-470
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• 2015

When a camera installed on a vehicle is used, estimation of the camera pose including tilt, roll, and pan angle with respect to the world coordinate system is important to associate camera coordinates with world coordinates. Previous approaches using huge calibration patterns have the disadvantage that the calibration patterns are costly to make and install. And, previous approaches exploiting multiple vanishing points detected in a single image are not suitable for automotive applications as a scene where multiple vanishing points can be captured by a front camera is hard to find in our daily environment. This paper proposes a camera pose estimation method. It collects multiple images of lane markings while changing the horizontal angle with respect to the markings. One vanishing point, the cross point of the left and right lane marking, is detected in each image, and vanishing line is estimated based on the detected vanishing points. Finally, camera pose is estimated from the vanishing line. The proposed method is based on the fact that planar motion does not change the vanishing line of the plane and the normal vector of the plane can be estimated by the vanishing line. Experiments with large and small tilt and roll angle show that the proposed method outputs accurate estimation results respectively. It is verified by checking the lane markings are up right in the bird's eye view image when the pan angle is compensated.

• Journal of the Korean Institute of Gas
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• v.20 no.2
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• pp.10-15
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• 2016

This paper is to analyze and study the failure examples of refrigerant gas in automotive air conditioner. The first example, the air conditioner compressor continually operated that the refrigerant was leaked in air conditioner system. By lubrication shortage, the piston was partially sticked on cylinder of air conditioner compressor inner part. This was caused the phenomenon of engine operation trouble by load increasing with engine rpm variation during engine running. The second example, it sought the fact that the air conditioner refrigerant gas was leaked from air conditioner compressor to condenser high pressure pipe toward rear air conditioner checking with the lines of air conditioner. The third example, the refrigerant gas of air conditioner found that was leaked imperceptible from condenser inner by crack that was generated on the fins of air conditioner condenser. Therefore, the air conditioner system that maintain the air conditioner by decreasing the in-car temperature must meticulously manage to not leak the air conditioner refrigerant gas.

• Asian Pacific Journal of Cancer Prevention
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• v.17 no.1
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• pp.401-406
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• 2016

Background: Cholangiocarcinoma is relatively rare worldwide. Most previous reports collected only patients with pathological diagnosis. In fact, however, many patients coming to hospital are diagnosed by clinical suspicion with radiologic imaging and receive treatment without histological confirmation. Real survival data and outcome of each treatment, especially for patients that do not have histologic confirmation, are lacking. In this study, therefore, we aimed to analyze the survival rates of CCA patients and the proportions of patients receiving different treatments. Materials and Methods: A total of 270 patients clinically suspected of CCA and visiting Srinagarind Hospital in May-July 2010, were prospectively followed until December 2014. After checking their clinical records, 163 of 270 patients were finally diagnosed as having CCA, and the data of this group were analyzed for survival rate and received treatments. Results: Of the 163 patients, 96 (58.9%) had intrahepatic, 56 (34.4%) had perihilar and 11 (6.7%) had distal CCA. The majority [107 (65.6%, 95%CI, 57.8-73.0)] received only supportive care. Overall median survival was 4 months (95%CI, 3.3-4.7), and 2-years survival was only 8.1% (95%CI,4.5-12.9). However, the 4 year survival of the R0 resection group was 100%. Conclusions: The present results show that the prognosis of CCA is very poor in North-east Thailand. Most CCA patients receive only treatment to alleviate symptoms due to their advanced stage of disease. Complete surgical resection at the early stage is the only treatment that significantly improves patient survival.

• Korean Journal of Community Nutrition
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• v.10 no.2
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• pp.163-173
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• 2005

School Lunch Program (SLP) should provide adequate and qualitative nutritional food for student's growth and proper food habit. With this fact, this study divided 524 middle school students who resided in Jeonju, Jellabukdo into two groups, SLP or non SLP according to whether they were provided SLP or not. Then this research estimate each group's nutritional knowledge, nutritional attitude, dietary behavior, balance of three meals, and health checking their clinical symptom to investigate the effects of the SLP. This research applied anthropometric data, questionnaires and food intake data using 24 hours recall method. Each group's age average was same as 14.0 years old respectively. The average score of nutritional knowledge and condition of balance of lunch were significantly higher in SLP group than those of non-SLP group, although, there were no significant differences in the scores of nutritional attitude, dietary behavior, and balance of breakfast and dinner within both groups. This research showed that SLP had positive role on nutritional knowledge and balanced lunch. However, current SLP is not sufficient to cause change the nutritional attitude and dietary behavior. To make more applicable and effective result of SLP leading nutritional attitude changes and development of appropriate dietary behavior, certain level of nutritional education to the student may be important.

• Journal of Nutrition and Health
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• v.35 no.8
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• pp.886-895
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• 2002

Introduction and application of virtual education has been rapidly increased in these days. A variation of information communication technology has an effect on education in interconnect with network as internet in the world that exceed the limit of time and regional. Computer and network communication technology through the medium of internet make an entrance cyber education as a new education paradigm. It must be affective on learner who have various educational characteristics and requirements. It begins to appear quality, quantity improvements of knowledge and the development of information technology that web based cyber education. This study was conducted to develop the web based education program and to evaluate the effectiveness of learning satisfaction and accomplishment and to compare the cyber lecture system with the traditional lecture system During the second semester of 2001, this study was investigated 317 registered students in a "Food and Culture" class at Kyungwon University. The data were obtained from pre and post-study with self-administered questionnaire. The evaluation and satisfaction score of students who were registered in cyberclass was negative tendency to compare pre with post-test scores, because of insuffciency of computer-aided lecture system. The major problem was inconvenient in checking system for connecting times in cyberclass which was one of evaluation point in final score. Another problem was frequently disconnection during cyber studying and not to concentrate each time in the cyber lecture because of eye fatigue, boring due to less interesting contents than other newly developed web-site. The students was prefer to mix type of the cyber and traditional lecture type class. The result of final score an each class, the score of cyber class (71.36 $\pm$ 22.44) was significantly lower than other groups (mixed type : 76.66 $\pm$ 19.99, traditional type :79.17 $\pm$ 15.72) (p < 0.05). Cyber class was attempted to present a useful and interesting teaching and learning tool which can be applied successfully in a longer term. The result suggest that various teaching and learning strategies should be developed considering the fact that the student learn alone most in time.t in time.

• The Transactions of the Korea Information Processing Society
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• v.5 no.5
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• pp.1216-1224
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• 1998

In the object oriented methods, most of the objects are independent from the another. However to get their job done from the system's point of view, they must have some kind of connection established among them. This means that the cooperation among the objects through the interaction is just as important as the static side of the objects. Usually, checking for correctness, compatibility and reasoning of the objects is limited due to the fact that the interactions between the objects are expressed in the form of a line or a box. The reuse experts often claim that the design reuse is more important than code reuse, mostly because it can be applied in more contexts and so is more common. The composition of the objects is also considered as a very important definition in the area of framework which is generally known as a technique to support reuse at both the coding and the designing level. Therefore on this thesis, the composition of such objects has been studied to provide a formal means of evaluating the component's compatibility and better possibility for further improvement in the area of framework, by formalizing the component compositions using the LOTOS.

• Journal of the Ergonomics Society of Korea
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• v.25 no.3
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• pp.25-32
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• 2006

As national income increases, consumers began to place a great deal of weight on products or quality of their life. They would like to have products which are more convenient to use and could meet their emotional desire in addition to its basic functional requirements. An automobile is one of the transportation system for human beings and the factor such as safety or environmentaly-friendly is regarded as important things resulting from it's popularization. In fact, domestic design technology leaves much to be desired compared with excellent manufacturing techniques. For this reason, some problems, like lowering of usage, could be caused by introducing technological data as it is from overseas. A survey of domestic car users has found that the most preferred condition (step height) is 460~495cm when they get in and out of their car. Men use their visual information and then get in the car, taking motion fit for each condition when automobile condition is changed. In other words, men get in cars actively within the range of conditions used for this study. These results were found from a motion study, when getting in a car, and checking the possibility of getting injury in accordance with the change of condition as well.