• Journal of Applied Reliability
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• v.17 no.2
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• pp.83-91
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• 2017

Purpose: The purpose of this study is to develop a quality assurance model and to determine appropriate warranty period for a guided missile using its field data. Methods: 10 years of actual firing data is collected from the defense industry company and military. Parametric maximum likelihood estimation for a reliability function is determined with the data. Results: The reliability function estimates average lifetime of the missile. That function shows a user requirement, 80% reliability (lifetime) is come up when 8 years have passed, which is longer than the estimates in the missile's development phase. Conclusion: Quality assurance warranty for a guided missile must be established with actual test data. It is necessary to update and modify the reliability prediction and the warranty period with actual field test data.

• Safety and Health at Work
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• v.7 no.1
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• pp.38-42
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• 2016

Background: Truck driving is known as one of the occupations with the highest accident rate. This study investigates the characteristics of traffic collisions according to road types (expressway and rural road). Methods: Classifying 267 accidents into expressway and rural road, we analyzed them based on driver characteristics (age, working experience, size of employment), time characteristics (day of accident, time, weather), and accident characteristics (accident causes, accident locations, accident types, driving conditions). Results: When we compared the accidents by road conditions, no differences were found between the driver characteristics. However, from the accident characteristics, the injured person distributions were different by the road conditions. In particular, driving while drowsy is shown to be highly related with the accident characteristics. Conclusion: This study can be used as a guideline and a base line to develop a plan of action to prevent traffic accidents. It can also help to prepare formal regulations about a truck driver's vehicle maintenance and driving attitude for a precaution on road accidents.

• Journal of Korean Society for Quality Management
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• v.46 no.4
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• pp.785-796
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• 2018

Purpose: Currently, the morale of Quality People and Quality Department in Korea is low, so it is not doing enough work. This is one of the reasons why there is no theoretical support for the role of Role of Quality People and Quality Department. In this paper propose Role of Quality People and Quality Department in Korea. Methods: We reviewed 'Quality History' of Juran and other literature Role of Quality People and future Quality. In addition, We surveyed the actual condition of Role of Quality People and Role of Quality Department in Korean. We propose Role of Quality People and Quality Department in Korea. Results: We propose the Definition, Mission, Characteristic and Quality People Knowledge for the Role of Quality People and Role of Quality Department in Korean. Conclusion: There is still work Role of Quality People and Role of Quality Department in Korean. We expect continuously to improve Quality Competitiveness by Quality Management with good Role of Quality People and Quality Department.

• The Research Journal of the Costume Culture
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• v.16 no.5
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• pp.937-954
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• 2008

The Gollyongpo was worn by the King and the Crown Prince in Joseon dynasty as an ordinary wear. The research on the Gollyongpo is focused on the historic record of Joseon dynasty, Joseonwangjosillok. This study will analyze literature, paintings and relics. First, I have researched Ming's(China) representative document daminghuidian, and excavated relics from the tomb dingling. I examined the usage and characteristic, through various remaining literature data, artifacts and paintings. The Gollyongpo was worn for the various ceremonies as well as an ordinary wear. According to the periode, the style and color had changed. The King wore the red Gollyongpo with 5 clawed dragon pattern, the Crown Prince wore black one with 4 clawed pattern, and the eldest son of the Crown Prince wore black one with 3 clawed dragon emblem. After the Daehan Empire, the Emperor wore gold outfit and the Crown Prince wore red outfit. Sonyongpo recorded in the Gungjungbalgi is concerned as Gollyongpo with narrow straight sleeve, one of the Sejong University Museum's Collection. There is some Possibility that the Gollyongpo painted in Bongsado is woven with dragon design, I would leave this matter for next research task.

• Journal of the Korean Society of Propulsion Engineers
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• v.18 no.1
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• pp.16-25
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• 2014

The system analysis and design program of the liquid rocket engine has been developed for preliminary conceptual design process. The program consists of modular programs analyzing the main thruster, the gas-generator, turbo-pumps, the turbine, pipes, valves and so on. Each module has been developed in order to estimate performance, weight, and shape parameters of the components. The results of them have been verified with experimental data or other programs.

• International Journal of Contents
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• v.16 no.2
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• pp.102-108
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• 2020

The purpose of this study was to estimate and analyze the potential radiation dose that the future visitors and the cleaning staff will be exposed to when the KRR-1 reactor is converted into a memorial hall. The radiation doses were estimated using the RESRAD-BUILD software, where case, building, receptor, shielding, and source parameters were applied as the input data. Also, the basic data for the assessment of the radiation doses were determined in an indirect manner using the data on the waste generated during the decommissioning process of the reactor. The assessment results indicate that the potential radiation dose to the visitors and the cleaning staff will be less than 1 mSv, the annual dose limit for the general public. However, if anyone for a significant period of time is close to the reactor, the overall dose will increase. The radiation dose for the future visitors and the cleaning staff was determined to be lower than the annual dose limit for the general public. Given such a risk, systematic measures, such as periodic monitoring or limiting hours, are imperative.

• Journal of the Korean Society of Costume
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• v.57 no.5 s.114
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• pp.112-122
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• 2007

This study reviewed the costume mainly on the Joseon Giroyondo(耆老宴圖) between 17th 18th Century. In Joseon Dynasty, they produced paintings to commemorate the meeting of Girohwe(耆老會), namely Giroyon(耆老宴); this painting is Giroyondo. The feature of Giroyon depended on political purpose and social phenomenon. Therefore, the composition of figures in Giroyondo and their costume were seen differently. By its character, Giroyondo was classified into official one from Giroso(耆老所), private one arranged by the participants and Court Giroyon(宮中腸宴圖). People figured in Giroyondo are roughly divided into costume in Girosin(耆老臣) officials and minor officials. Girosin officials wore Hongdalyong(紅團領) and Samo(紗帽) in official Giroyondo while they wore Hungnib(黑笠.) and Jingnyong(直領) in private Giroyondo. In Court Giroyon, which was for classy and formal Court event, they wore Dalyong(團領) and Samo but in colors of blue and green. Minor officials were observed in two categories; those who wore Samo and Gakdae(角帶), and those in Dugeon(頭巾). However, they were not showed up in private Giroyondo.

• Journal of the Korean Society of Costume
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• v.35
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• pp.265-279
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• 1997

Through eight folding screens for Chac Rae and ban Cha Do we have learned the costumes of people who participate in Chac Rae ceremonty being accompanied by social positions. Firstly the costumes of crown prince can be classified in two parts. One is costumes of Chac Rae befor Kwan Rae the other is costumes of Chac Rae after Kwan Rae Also we know the costumes of Chac Rae before kwan Rae is consisted of SSangdonggae Gong-jungchak Chilchangbok Mean-while the crown prince wore Myunbok at chac rae after Kwan rae. Second Chakbongdo tell us various types of Youngbok by blue-black and red colored chulik Third we can see Uijangsu who wore Sangbok on Chakbongdo and know their brilliant costume colors on ban Cha Do through Hongmo on Chunguei Chungmo on honguei Hongmo on Honguei violet-Lip on honguei mean-while Kyokun wears Hongmo on Honguei and hoimo on Hoiuei. Forth regarding the costume of Byulgam Chakbongdo appears Chogun on Hongpo belting blue belt wearing blackboots Meantime ban Cha Do shows Chogun on Hongpo wearing shoes. As reviewed above we know various color and types of costumes through Chakbongdo & Ban Cha Do on Crown prince Chacraedogam and would lide to deepen Chac Rae of crown prince including the costumes of Chac Rae of the crown princess the eldest son of the crown price the eldest brother of the king.

• Transactions of the Korean Society of Automotive Engineers
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• v.25 no.3
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• pp.344-349
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• 2017

Suspension noise from under a passenger car is one of the important factors that impact the perceptual quality for drivers. However, it is difficult to validate this by component level testing in the early stage of development, because suspension noise caused by interaction of the related parts has been found at saleable vehicles late during development or at the manufacturing stage, when many customers have already filed for claims. This study proposed a validation testing under research by the DFSS process that enables reproduction of vehicle level noise by component level testing using a shock absorber with the related parts, such as urethane bumper and top mount. This study also developed a compromised test matrix while analyzing the noise factors through experimental design and analysis of variance to determine what factors can affect noise. Based on this study, we expect that the vehicle level and customer claim can be validated during initial development timing by a more reliable component noise validation test.

• Journal of the Korean Society of Costume
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• v.31
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• pp.47-60
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• 1997

As we analyzed the formalities of court dress during King Soonjo's rule through the characters depicted in $\boxDr$Wangseja Chulgungdo$\boxUl$(The Painting for a Crown Prince's Outgoing for Schooling to Sungkyunkwan) the results were as follows: People wore their appropriate full dress ac-cording to the ceremonial procedures. In the case of a Crown Prince normally the wore Gongjungchaek(a hat) (after the coming-of-age ceremony Iksunkwan) and Gonryongpo(imperial clothes) to show his status as a Crown Prince. He wore chugkumbok(a Coat) to indicate a Crown Prince as being a student. on an occasion of celebration a Crown Prince wore Wonyugwan and Gangsapo to provide him with prestige and as a sign of respect for the occasion. The teacher of a Crown Prince also wore Gongbok and Sangbok accoding to the dress requirements of the ceremonies. We can confirm that the Gongbok system of all government officials had been main-tained in the late Chosun dynasty. We know that the form of ceremonies be-came simplified in the late Chosun dynasty. it was recorded that students had to wear Chungkumbok. but we knew from the painting that students actually wore Dopo(a traditonal korean coat). We knew through this painting that the court dress rules of the late Chosun dynasty varied that previously known. As we concluded above research on the his-tory of costume by analyzing paintings both supplements our knowledge of the topic and confirms the deficiency in the study of the his-tory of costume based solely upon literature and books.