• Journal of the Korea Safety Management & Science
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• v.19 no.1
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• pp.203-210
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• 2017

Companies are pursuing the management of small quantity batch production or JIT(Just-in-time) system for improving the delivery response and LOB(Line Balancing) in order to satisfy consumers' increasing demands in the current global economic recession. And in order to improve the growth of production for reducing manufacturing cost, improvements of the Load Balancing have become an important reformation factor. Thus this paper is aimed at warehouse which procures materials on the assembly line in procurement logistics of automotive logistics and proceed with research on heuristic algorithm development which can increase the Load Balancing of workers. As a result of this study, when applied the primary target value, it was verified that the whole workers decreased from 28 to 24. Furthermore, when specified the secondary target value and applied algorithm once more, it was verified that the Load Balance Ratio was improved from 44.96% to 91.7%.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2002.05a
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• pp.225-231
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• 2002

POSCO $\#2$ Stainless steel making plant produces more than 600 thousand ton per year with a variety of products consisting of austenite and ferrite stainless steel to meet custrmers' needs since 1996. The plant has four different major processes, that are, EAF-AOD-VOD-CC to finally produce semi-product called as slab. In this study, we importantly took AOD process into consideration due to its roles such as to check and verify the final qualities through sampling inspection. But the lead-time from sampling to its verification takes five to ten minutes causing produrtivity loss as muck as the lead-time as a result. Of all indices for quality and process control the plant has, carbon ingredient in liquid type of steel is the most important since it affects in a great way to the characteristics of steel, if any problem. customers not satisfied with quality could issue a claim; therefore there is no way hut to guarantee it before delivery. in this study, to reasonably reduce lead-time ran save a cycle time and finally improve our productivity from a state-or-art alternative just such as applying statistical model based on multi-regression analysis into the A.O.D line by analyzing the statistical and technical relationship between carbon and the relevant some vital independent variables. In consequence, the model with R-square $87\%$ allowed the plant to predict, abbreviating the process in relations to sampling to verification. approximately the value of [C] so that operators could run the process line with reliability on data automatically calculated instead of actual inspection. In the future, we are going to do the best to share this type of methodology with other processes, if possible, to apply into them.

• The Research Journal of the Costume Culture
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• v.28 no.3
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• pp.389-407
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• 2020

With YouTube's overwhelming share of the market, research on analyzing the types of content on YouTube is essential. An analysis of major global fashion YouTubers that the types of video content could be largely classified into three main categories: Fashion, beauty and daily life. The fashion category was subdivided into styling and fashion product review content type. The beauty category was subdivided into tutorials, beauty product reviews, and beauty tip content types. The daily life category was subdivided into daily sharing, consultation, and Q & A content types. Video content within fashion YouTuber channels is accompanied by expertise in fashion and beauty. At the same time, videos on daily life are uploaded, and through interactive communication with viewers, YouTubers form an intimate bond with subscribers. Content emphasizing entertainment, not just information delivery that introduces fashion products, is attracting growing interest among subscribers. This study analyzed the content of the increasingly popular fashion YouTuber channels and determined its important characteristics. The study makes a significant contribution to academic research by laying a foundation for future studies of YouTube content in the fashion field. Since differences in country of birth and race among YouTubers may influence content production, follow-up research will be conducted on the types and characteristics of domestic fashion YouTubers.

• Women's Health Nursing
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• v.7 no.1
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• pp.30-43
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• 2001

This was a pre-experimental study to confirm the breast-feeding ability and effect of follow up care on the breast-feeding rate and the breast-feeding method by the mother-infant breast-feeding assessment tool for the mothers who got the breast-feeding education. The subjects were 46 mothers who experienced normal delivery of infants at a college hospital in K-city, Kyungsangbuk-do, from July 1 to October 21, 2000. The instrument for data obtainment were The Mother-Infant Breast-Feeding Assessment Tool of Johnson et al. (1999), and The Breast- Feeding Method Measurement Tool of Jeong, Geum-hee(1997). This instrument was reliable, showing Cronbach $\alpha$.751. This study classified them into 3 groups: at high risk for breast-feeding failure, at risk for breast-feeding problems, and at low risk for breast-feeding failure by the mother-infant breast-feeding assessment tool on the day of discharge from the hospital after delivering individual breast-feeding education to the subjects. This study investigated the breast-feeding rate and the breast-feeding method through mail questionnaire at the four week after childbirth, and through the phone counselling and the home visit for follow up care at the first week and the second week after childbirth. The sixth week after childbirth, this study investigated the breast-feeding rate by phone. The data analyzed the hypothesizes by $x^2$-test, paired t-test, ANOVA, Wilcoxon signed rank test, Wilcoxon rank sum test and trend analysis using SPSS/PC+ WIN 10.0 program. The results were as follows : 1) Hypothesis 1-1, "there won't be any difference the breast-feeding rate of a group at risk for breast-feeding failure by the time elapsed" was supported through constant the breast-feeding rate, because changes in the breast-feeding rate by the time elapsed after childbirth wasn't statistically significant(t= -1.501, p=.270). Hypothesis 1-2, "there won't be any difference the breast-feeding rate of group at low risk for breast-feeding failure by the time elapsed" was supported through constant the breast-feeding rate, because changes in the breast-feeding rate by the time elapsed after childbirth wasn't statistically significant(t=-1.732, p=.225). 2) Hypothesis 2-1, "there won't be any difference between the breast-feeding method of group at risk for breast-feeding failure for four weeks after childbirth and just after childbirth” was rejected, because the mean point of post test appeared to be higher than that of pre test(t=-7.267, p=.000). Hypothesis 2-2, "there won't be any difference between the breast-feeding method of the group at low risk for breast-feeding failure for four weeks after childbirth and just after childbirth" was rejected, because the mean point of post test appeared to be higher than that of pre test(t=-2.501, p=.012). 3)The 3rd hypothesis, "there won't be any difference between breast-feeding method of groups at risk for breast-feeding problems and at low risk for breast-feeding failure at the 4th week after childbirth and just after childbirth" didn't show any difference between the breast-feeding method of groups at risk for breast-feeding problems and at low risk for breast-feeding failure in the advance test(t=-1.521, p=.130) but there was difference between them in post test (t=-2.012, p=.044). As a result, the 3rd hypothesis was supported by pre test, but it was rejected by post test. In conclusion, this study confirmed breast- feeding education and follow up care just after childbirth were effective for the breast-feeding rate and method. Accordingly, it is proposed that successful nursing intervention of breast-feeding to be necessary by continuously providing follow up care through the mother-infant breast-feeding assessment tool as well as to execute individual breast-feeding education to mothers just after childbirth.

• Journal of Korean Library and Information Science Society
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• v.34 no.4
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• pp.43-66
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• 2003

Nowadays many academic libraries have considered and some have implemented the just-in-time(access) approach to collection development especially of scholarly journals. The adaption of the scholarly electronic journal based on access paradigm has brought a number of advantages and disadvantages to academic libraries. Electronic journals have promised rapid delivery of the latest research to the desktop through the ubiquitous platform of the Internet. But the promise of the e-journal is not yet a reality, and there are many misconceptions about what is actually available today. The objective of this paper is to analyse the probabilities of digital achilles tendon of scholarly journals resulting from a decline of purchase power, absence of selection(evaluation) criteria, superfluities and abuses of impact factor, access paradigm and halo effects, mismatching of demand-supply, md insufficiency in subject gateway functions.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2003.05a
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• pp.98-104
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• 2003

While the impact or internet on our everyday life keeps increasing, the internet users are turning toward the value added information only that suits their purpose instead of just wandering over a sea (pool) or information. Although it is easy to locate the information using various search engines. we still finds it time and cost consuming to update the existing information or to add similar Information. There are several portal sites managed by each industrial types or associations/organizations for the purpose or strengthening the competitiveness or small and medium-sized enterprises And currently, tremendous manpower and expenses are put into the selection and quality improvement or information to satisfy the needs toward the high qualify information by the specialized users in their fields collection and updating or the information is partially available manually during He period or budget allocation by the government it becomes problematic, however, to continue this service when the project expires. This report presents the system for the information collection, analysis and classification of portal sites operated for the special purposes and automatic upload to the proper sites. In addition. expression or web robots and application of robots and several information types are suggested which will eventually accomplish currency or information and automatic updates and addition or documents with the least expenses or maintenance.

• Journal of the Korean Regional Science Association
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• v.8 no.1
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• pp.119-130
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• 1992

Many of the industrialized countries since the 1970s have been experiencing the change in the industrial structure due to technological development, that is, from Fordism to post-Fordism, or to "flexible production system". Regional development has been undergoing some changes according to the different industrial production systems. During the Fordist mass production period, the manufacturing belt was the core region of the production system. As the system shifts to flexible production system of which characteristics are veritcal disintegration, emphasis for JIT(just-in-time) delivery system, part-time and short-time labor contracts, design-intensive industries, etc, the new system requires the new production core and has produced the new industrial spaces, such as Sunbelt cities, suburbs, small-or medium-sized cities, and non-metropolitan areas. In the perspective of global system, the Fordist production system made th NICs developed, because the mass production required many unskilled and low-wage workers. As the NICs exports of manufactured goods have incredibly expanded during the 1970s, the industrialized countries have become threatened. The industriablized countries have restructured their economies and international policies. Such restructures resulted in the economic depression of the NICs. The investment pattern of the industrialized countries has changed and particularly those industries adopting the Post-Fordism have invested from the NICs to the peripheral areas of their own countries or toward the underdeveloped countries which have much lower wage workers. The investment pattern of the NICs is also undergoing some changes like from metropolitian areas to small or non-metropolitan regions. The regional development since the post-Fordist production is still going on, thus it is not possible to generalize the tendency. That could be a particular phenomenon or a stage in the long-term cycle. But the regional development in the world system since 1980s definitely shows the different pattern.t pattern.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.22 no.2
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• pp.163-172
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• 2009

BIM technologies based on three-dimensional parametric solid modeling can provide building industries with a wide range of information, and then enable not only to automate architectural drawings, detect clashes between building components, and estimate building materials, but also to manage effectively architectural and engineering information about building spaces, structures, energy, just-in-time delivery, facility management, and code checking. This paper presents an implementation to extract geometric data from IFC files, and validates the system with simple and complex buildings.

• Journal of Korean Academy of Nursing
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• v.5 no.1
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• pp.31-40
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• 1975

A study on public health education curriculums of 14 universities located in Seoul city was carried out from Oct. 15 1974 to Nov. 15 1974. The data were obtained from 11 universities bulletins & 3 universities administration officers. The contentments of public health were obtained by the interview with the teaching professors on the syllabuses. The results were as follows: 1. General Public health topics were taught at 4 universities (28.6%) out of 14 universities & 129 departments (25.3%) out of 509 departments. General public health education were taught at 2 universities (28.6%) out of 7 universities with medical school of the colleges of education 2 collages (18.2%) had the public health education in the curriculums. 2. Academic administration of Public health education by universities 2 hrs for 2 credits were allocated at 2 universities (50%), while 4 hrs for 2 credits at the rest universities (50% ), Pubic health education were taught as an essential general education at 4 universities. Public health education were taught in freshman course at 2 universities in senior course at 2 other universities. Text books on public health education were chosen at 2 universities and at other 2 universities, just references were introduced to students. Contents of public health education. In two universities teaching programs of public health were undertaken & in other two universities no particular leaching programs were undertaken. And contents of tuberculosis, V. D. & communicable disease control Pregnancy & delivery, precaution ok post paestum maternal & child health were taught at 4 universities. Contents of health & college students, alcohol tobacco & coffee, chosen of sports were taught at few university. 3. General public health education instructors: The instructors were consisted of 13 men(81.2%) & 3 women (18.8%) Physicians were 11 (68.8%), nurses 2 (12.5%) & others 3(18.7%) Full time instructors were 7 (43.7%) part time instructors 9 (56.3%) Position & organization instructors belong to ; instructors (75.0%) had the teaching position in universities & research workers & others were 3 (18.8%) & medical practitioner was I(6.2%) 4. Public health & home nursing education by general home economic departments. Home nursing & public health were taught as an compulsory general education program in 10 departments 50.5% & as an alternative major course in 7 departments (35.0%) 2 hrs for 2 credits were allocated at 9 departments (45.0%) while eve. 4hrs for 4credits were 8 departments (40.0%).

• Journal of IKEEE
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• v.28 no.1
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• pp.97-103
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• 2024

Some drugs can offer far better medical effectiveness as it is injected through the intradermal layer of the skin, known as a needle-free injection. However, conventional needle-free devices might deliver a relatively large amount of drug in a just single spot of skin, splitting open the tissue layer structure, which might cause bruising and bleeding. By injecting the small volume with a fast repetition rate in a large surface area of skin, the patient may get much fewer injuries and pain. To achieve that specification, the driving force must be instantaneous and short-pulsed. Such a form of an injection device has been developed but the efficacy of those devices has been rarely examined. Therefore, this study developed the laser-induced microjet device that ejects microjet whose speed is ~310 m/s, during the 400~800 ㎲ of pulse time. The device can eject ~1 µL of the drug at the rate at which each shot repeated 10 shots per second. Using this specification, we evaluated the efficacy of drug injection onto mouse models. After injecting the insulin solution into the mouse model, the blood insulin level is detected, resulting in 20 % of blood insulin level with the ordinary needle syringe injection method.