• Korean Management Science Review
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• v.34 no.2
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• pp.1-14
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• 2017

Recently, despite the presence of a large number of people with disabilities, facilities and services for the disabled are insufficient in comparison with the advanced countries. Especially, unmanned facilities and devices are not available for disabled people without help. As interest in disabled people increased, the convenient facilities for the disabled person should be legally installed in the public places. Moreover, social consensus formation and technical approaches are being actively pursued. In this paper, we propose a five-step scenario to use an unmanned post office. Based on the proposed scenario, we present the method to improve the accessibility of the user interface of the unmanned facilities. And we present a plan for establishing the short- and medium-term service models. This plan is expected to be highly practicable because it reflects the current situations of Korea Post and analysis result of the domestic and oversea cases.

• Journal of Korea Society of Digital Industry and Information Management
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• v.10 no.1
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• pp.131-138
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• 2014

This paper is on a stereo acoustic echo canceller with the blind signal separation for post processing. The convergence speed of the stereo acoustic echo canceller is deteriorated due to mixing two residual signals which are update signals of each echo canceller. To solve this problem, we are to use the blind signal separation(BSS) method separating the mixed signals after the echo cancellers. The blind signal separation method can extracts the source signals by means of the iterative computations with two input signals. We had verified performances of the proposed acoustic echo canceller for stereo through simulations. The results of simulations show that the acoustic echo canceller for stereo using this algorithm operates stably without divergence in the normal state. And, when the speech signals were inputted, this echo canceller achieved about 2dB higher ERLE with the BSS post processing method than without this method. This stereo echo canceller showed the best performance in the case of inputting the real voice signal.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.37 no.4
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• pp.98-105
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• 2014

According to a simple survey on the current status of the assembly line design, it was found that trial and error methods on the basis of experiences have been used mainly in domestic manufacturing industries, even though there exist a lot of excellent line balancing studies. It seems that more practical researches should be carried out to develop user-oriented line balancing tools especially for small and medium-sized enterprises. This study presents a design of the line balancing tool which can support the line balancing tasks of nonspecialists. The proposed design tool is composed of three major modules: pre-process, line balancing, and post-process. In particular, pre-process and post-process are newly proposed to increase its ease of use. We applied the proposed design to a test problem and test result showed that our practical method may contribute to enhance the efficiency of production operations management.

• International conference on construction engineering and project management
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• 2011.02a
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• pp.542-549
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• 2011

This research will attempt to reveal that private developers in the Malaysian construction industry have been practicing strategic partnering in their organizations. While the investigation was conducted using quantitative and qualitative approaches, this paper will only reveal results obtained from the questionnaire survey. Results from the questionnaire survey indicate that private developers in the Malaysian construction industry had implemented strategic partnering in their organizations. The elements of the partnering process, which are partnering formation, partnering application and partnering completion or reactivation were tested. The results show that all the elements of the partnering process have been exercised in their projects. Thus it can be surmised that strategic partnering has been practiced by private developers in the Malaysian construction industry.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1987.10a
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• pp.26-27
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• 1987

• Information Systems Review
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• v.1 no.2
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• pp.73-87
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• 1999

• Journal of Korean Academy of Rural Health Nursing
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• v.3 no.2
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• pp.96-103
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• 2008

Purpose: The Study of vaccination for infants and children business in Primary Health Care Posts from 1980 to 2009. Method: look for national essential vaccination look for the change of vaccination by the times in Primary Health Care Posts and the rate of vaccination for infants and children by a administrative report statistics survey of a vaccine delivery system of Public health care institutions investigation about assistance details of vaccination cost in order to raise the rate of vaccination for infants and children. Results: In 1980s, there are many infants and children management object, but now there are rapidly decreasing infants and children management subject of a Primary Health Care Post because of rural exodus phenomenon of 1990's and a low birthrate of 2000's. Currently, the infants and children that registed, and managed to a Primary Health Care Post is most multi-cultural families. A multi-cultural family assistance program is provided these infants and children to the objects. Conclusions: Infant vaccination execution in Primary Health Care Posts showed to high vaccination rate because the prevention of vaccination delay or omission of the interior child who raised geographical accessibility to object sons nowadays it difficult to management of transportation of vaccine and storage management for a little shroud objects limited and management of inoculation business in quality. A main problem is as follows. There are a little vaccine transportation, trouble of proper temperature maintenance of a storage process, and having a lot of vaccine abolition as a little objects, educational training shortage of health care practitioner regarding to execute an inoculation. Therefore, vaccination business needs measures for management in quality in Primary Health Care Posts.

• Journal of Soil and Groundwater Environment
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• v.27 no.4
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• pp.1-9
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• 2022

This study was conducted to supplement new-normal strategies on management plans of rural groundwater resources in the era of Post COVID-19. Global outbreak of COVID-19 has damaged across all areas including public policy, economics, industrial services, and others without exception, which has resulted in establishing new-normal strategies in order to restore balance and functions as for these areas. The new-normal ones were represented as enhancing preventative management on infectious diseases, expanding non face-to-face services, enhancing protective trades and food securities, and preparing growth policies on public services using the 4^th industrial revolution techniques. In this study, G-WASH_AD (Groundwater supply, sanitation, and hygiene with attraction and digitization) was suggested to be new-normal strategies on rural groundwater resources. The G-WASH_AD was consisted of three detailed action plans: a preventative plan on waterborne-diseases of groundwater (PP), a groundwater-tourism plan with rural heritage (GP), and an application plan of the 4^th industrial revolution techniques to groundwater facilities and its data (P4). The PP can contribute to protect human health from waterborne-diseases and minimize hazardous effects on crop cultivation. The GP accompanied with high-quality groundwater resources is able to strengthen rural tourism, to promote marketing activities on local agricultural products, and to increase household incomes of rural communities. The P4 can reinforce fast, comfortable, and scientific management on groundwater facilities and its data, creating a virtuous cycle between innovative management on groundwater and growth of technology related to it. Results of the G-WASH_AD strategies can encourage a green growth engine in field of rural groundwater management keeping up with Post COVID-19.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.20 no.2
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• pp.137-146
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• 2013

Purpose: The purposes of this study were to identify and compare various types of post operative pain management and the costs for pain management following 4 different types of surgery. Methods: Data were collected from 325 medical charts which were extracted from the billing databases of a tertiary hospital and analyzed using numbers, percentages, one way ANOVA, and Scheff$\acute{e}$ test. Results: For pain management, 10.5% of patients used PCA only, but the other patients combined other methods with PCA. The average length of PCA use was significantly different by operation. Almost one third (32.9%) of patients experienced at least one of side effects due to analgesics used for pain management, with highest incidence being for nausea and vomiting. For patients who underwent a total abdominal hysterectomy, 34.7% used PCA less than 2 days due to side effects of the analgesics and the ratio of analgesia cost to total hospital cost and total pharmacy cost were highest compared to other operations. Conclusion: The results of this study indicate a need to develop new strategies to more effectively manage postoperative pain to decrease incidences of side effects without increasing medical costs.

• Journal of Chest Surgery
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• v.26 no.11
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• pp.845-850
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• 1993

Post-Pneumonectomy Empyema[PPE] is a relatively uncommon but serious complication. And the management of it remains a disturbing and controversial area in the field of general thoracic surgery. Many methods have described and have had varying degrees of success. For the purpose of providing the guideline for management of post-pneumonectomy empyema, we reviewed our experiences of treatment of PPE from January 1985. to December 1992. There were 17 cases, which consist 7.9% of all pneumonectomy cases for that period. There were 13 male and 4 female patients with mean age of 47.1$\pm$ 16.2 yrs old. Both chest has the same incidence. The most common disease for prior pneumonectomy was tuberculosis, but the PPE was the most frequently occurred in empyema. The duration between pneumonectomy and PPE was 44.7 $\pm$81.1 months, where 58.8% of patients occurred within 1 month. Fever was the most frequent complaint and wound dischrge was detected in less than half of patients. There were 2 in-hospital mortalities.Mostly, in 13 cases, we did Eloesser operation. Five of them could finish second Clagett procedure, but one had recurrence. Four bronchopleural fistular patients underwent 3 single stage muscle flap closure and 1 direct closure with modified Clagett procedure. None had recurrence. Mean follow-up duration is 30.9\ulcorner22.3 months. There was 1 late death which was not related to PPE but to Malignancy recurrence.