• 한국도로학회논문집
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• 제14권4호
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• pp.19-28
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• 2012

PURPOSES : Recently, the mechanistic-empirical overlay pavement design program that is linked with Korea Pavement Research Program (KPRP) has been developed. This paper focused on establishing the framework and developing the program for the asphalt overlay design over the existing asphalt concrete pavement. METHODS : The overlay pavement design program developed in this study was investigated to assess the sensitivity to various pavement conditions, such as the damage level and thickness of existing layers. In addition, the actual overlay design on currently performing pavement was carried out as a practical example. RESULTS : From the sensitivity analysis, it was found that the thickness and damage level of existing asphalt layer mostly affect the overlay design results. In addition, under the same condition, the overlay pavement would better perform in cold region. From the overlay design with the actual condition, it is noted that the overlay thickness varies depending on the given condition. CONCLUSIONS : Based on various evaluations, it was concluded that the overlay design program developed in this study is a reliable and reasonable tool to be used in the actual pavement design.

• 조명전기설비학회논문지
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• 제18권6호
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• pp.100-107
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• 2004

유희용전차는 유원시설 내에 설치된 놀이기구의 일종으로 산자부고시인 전기설비기술기준 제252조에서 별도로 규정하고 있다. 전기설비기술기준은 법적 최소요건으로 일본의 전기설비기술기준령을 토대로 제정된 이후 기술적 환경의 변화에 신속하게 대응하지 못함에 따라 유희용전차의 시설에 관한 규정에 있어서도 현실적인 문제점이 많이 내포되어 있다. 따라서, 본 논문에서는 이와 같은 현장 적용상의 기술적 문제점을 해결하기 위하여 전국에 있는 28개의 유희용전차를 대상으로 현장 적용실태 분석 및 실측을 통하여 현행 전기설비기술기준의 개선방안을 제시하였다.

• 교통기술과정책
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• 제10권4호
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• pp.14-20
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• 2013

• 한국농업기계학회:학술대회논문집
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• 한국농업기계학회 1998년도 동계 학술대회 논문집
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• pp.82-91
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• 1998

• 한국화재소방학회:학술대회논문집
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• 한국화재소방학회 2003년도 추계학술논문발표회논문집
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• pp.195-201
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• 2003

• 전기학회논문지P
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• 제60권3호
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• pp.114-119
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• 2011

Large Power transformer is a complex and critical component of power plant and consists of cellulosic paper, insulation oil, core, coil etc. Insulation materials of transformer and related equipment break down to liberate dissolved gas due to corona, partial discharge, pyrolysis or thermal decomposition. The dissolved gas kinds can be related to the type of electrical faults, and the rate of gas generation can indicate the severity of the fault. The identities of gases being generated are using very useful to decide the condition of transformation status. Therefore dissolved gas analysis is one of the best condition monitoring methods for power transformer. Also, on-line multi-gas analyzer has been developed and installed to monitor the condition of critical transformers. Rogers method, IEC method, key gas method and Duval Triangle method are used to failure diagnosis typically, and those methods are using the ratio or kinds of dissolved gas to evaluate the condition of transformer. This paper analyzes the reliability of transformer diagnostic methods considering actual dissolved gas concentration. Fault diagnosis is performed based on the dissolved gas of five transformers which experienced various fault respectively in the field, and the diagnosis result is compared with the actual off-line fault analysis. In this comparison result, Diagnostic methods using dissolved gas ratio like Rogers method, IEC method are sometimes fall outside the ratio code and no diagnosis but Duval triangle method and Key gas method is correct comparatively.

• 패션비즈니스
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• 제8권1호
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• pp.61-75
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• 2004

This paper has the meaning to plan new design of patient's cloth focusing on its aesthetic aspect through surveying actual condition of use of patient's cloth and reflecting color or pattern that patient prefers to it. Substantial purpose of this paper is 1) to survey actual condition of patient's cloth on the basis of general hospital of downtown of Busan City, 2) to revise difficulty of patient's cloth and survey and analyze color and pattern that patient prefers and 3) to suggest new patient's cloth design using color and pattern that meets function that is not difficult for patient's activity and cure and stabilizes patient's mind on the basis of the result of analysis. The result of this paper is like follow. 1. Problem of current patient's cloth is that most hospital uses patient's cloth having white background and hospital logo of blue or green color and its length is too long so it requires adjustment of length of sleeves and pants 2. The result from analyzing preferred patient's cloth is that patient prefers patient's cloth classified by man and woman, one that its length of sleeves and pants are adjusted and one that there is no collar in its neckline. Regarding color, male patient prefers mild indigo color(5PB7/7) and mild green color (5G9/2) and female patient prefers bright purple color and bright scarlet color(5YR8/7). Regarding pattern, both of man and woman prefers natural pattern. 3. This paper planned total 6 kinds of patient's cloth (common patient's cloth: 2 kinds, male patient's cloth: 2 kinds and female patient's cloth: 2 kinds) through revising difficulty and using new color and pattern according to result of preference.

• 농촌계획
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• 제23권3호
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• pp.107-120
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• 2017

This study started with drawing problems of early implementation and suggesting improvement plans in order to lead a rural convergence industrialization district system to early settlement and management for its policy goals. The study aimed at 13 districts that were designated from 2014 to 2016 for analyzing an actual condition of promoting early implementation, and went ahead with it combining literature research, interview survey and specialist opinion investigation. The study examined and organized an outline, policy goal, and actual condition of rural convergence industrialization district. Furthermore, it analyzed an actual condition of promoting at each stage such as designating processes of rural convergence industrialization districts, operating body and system, regulation improvement, district supporting projects and relating projects, drew problems and finally suggested improvement plans. This study could be meaningful because it is the first study to grasp an actual condition of promoting early implementation and to remedy problems in order to manage rural convergence industrialization district system which was newly promoted since 2014 for its policy goal. In addition, it suggests that the further study of the result after managing district system for a certain period of time should be needed.

• 한국윤활학회:학술대회논문집
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• 한국윤활학회 2002년도 proceedings of the second asia international conference on tribology
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• pp.465-466
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• 2002

In any mechanical system consisting of gears, shafts and/or bearings, the majority of metallic particles deposited into and carried by the lubrication system originate from the deterioration of oil-wetted working surfaces, even in proper lubrication system, due to failure mechanism (s) such as wear, fatigue and fretting corrosion. Determination of the point at which transition from normal to abnormal or to actual damage occurs has become a focus of attention in research activities for years, because it has been recognized that reliable, economic operation can be achieved through appropriate preventative measures. Known collectively from 'all size wear debris analysis' as early failure detection, the methods of testing for damage differ considerably, range from a micron or a submicron size debris analysis to Magnetic Chip Detector (MCD) ferrous debris analysis. This paper will be focused on the utilization of the low-cost analysis techniques for evaluation of industrial machinery condition.

• 한국의류산업학회지
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• 제3권4호
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• pp.313-322
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• 2001

This study was designed to investigate actual conditions(the types and the personal physical job related factors) of fashion model in Korea. Survey was done through questionnaire data, 194 fashion models were involved survey. The data were analyzed by using frequency, cluster analysis. The results of this study were as follows : 1) The largest sample were as follows (about personal physical related factors) : unmarried, college graduate and undergraduate, resident in the Seoul, 2-24 yrs female with 175-177 cm, 52-54 kg, B-W-H (33-24-35 inch). 2) The largest sample (about job related factors) were as follows: getting private educational institution, 1-2 yrs job experience, B grade, less than 600,000 won for salaries, 100,000-190,000 won at a stage, 5-6 yrs duration of model work, inexperience in the international fashion stage, take up a foreign language, fashion magazine for fashion source, image and look of individuality for a necessary condition. The motive for job was the concern in the job. Problems with a guarantee were pointed out for the betterment working conditions. 3) The types of fashion model were classified into 4 types : the type of lack of professionalism, the type of show off one's talents, the type of dissatisfaction with working condition, the type of maturity of professionalism.