• Journal of the Economic Geographical Society of Korea
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• v.15 no.3
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• pp.390-403
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• 2012

Industrial parks have played a pivotal role in leading and sustaining economic and regional development in Korea. It is conventionally known that industrial parks induce a variety of effects in regional economy from a formation stage to an operational stage. Notwithstanding it is surprising that there is almost no literature on economic effects of the formation and operation of industrial parks. In this paper we attempt to measure economic effects of the formation of industrial parks in Gimhae, Sanmak (Yangsan) and Haman in Gyeongnam. The formation stage of industrial park is divided into a site renovation stage, a firm location stage and an operational stage. This research shows that economic effects of the formation of industrial parks can be different by the characteristics of individual industrial park. Particularly, the main sectors of industry to be located in an industrial park can be to a great extent influential for the effects of the new creation of industrial park on productive inducement and job creation.

• Journal of Gastric Cancer
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• v.5 no.4 s.20
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• pp.217-221
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• 2005

Purpose: The incidence of gastric neoplasms is increasing in the elderly population, and a rational method of treatment for gastric cancer in the elderly is needed to improve survival. The purpose of the present study was to clarify whether the patient's age is an independent prognostic factor and to determine clinicopathological characteristics in the elderly. Material and Methods: Curative or palliative surgery for gastric cancer was carried out on 706 patients in Chosun University Hospital from March 1995 to February 2002. They were divided into the following two groups: elderly group (75 years or older) and control group (under 74 years old). The clinicopathologic features of these patients were reviewed retrospectively, and a multivariate analysis was performed. Results: There was no difference in clinicopathological appearances between the two groups, and the postoperative morbidity and mortality rates were similar in the two groups. The two groups showed similar survival rates. Conclusion: In this study, age was not a prognostic factor in surgery for gastric cancer. In the elderly, an oncologically correct surgical procedure can safely be prosecuted with satisfactory early and late results.

• Korean Journal of Social Welfare
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• v.36
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• pp.101-127
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• 1998

The purpose of this study is to develop human resources and management system model for home-based welfare services. For the purpose of the study, both of method of literature review about home-based welfare services and previous research and survey were used in the study. The subjects of the survey were Junior and senior high school students, the employed, housewives, the disabled, and the aged. They were considered as human resources for the home-based welfare services. Based on the result of the survey and related theories, the study suggests the model for the development of volunteers and management system composed of recruitment, education and training, disposition, management and supervision, and evaluation for home-based welfare services. Assuming linking and cooperation between volunteer center and agency using volunteers which provide home-based welfare services, the model was developed. The role of volunteer center is recruitment, education and training. The agency using volunteers is responsible for education, disposition, supervision, and evaluation related to practice. In the stage of recruitment, elaborating strategy considering characteristics of group was suggested. In the campaign, use of mass media, selection of timing, equal opportunity for all group were suggested. Also outreach strategy as a effective recruitment strategy was presented. In the stage of education and training, method and content of education in each stage of primary education and re-education were presented. In the stage disposition, method and content for the right volunteer in the right place were suggested. In the stage of management and supervision, supervision by coordinator and necessity of using volunteers as para-professionals was suggested. Also the necessity of program operation for volunteer maintenance and management was discussed. In the stage of evaluation, time, main body, and method of evaluation was suggested.

• The Journal of the Korea Contents Association
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• v.10 no.2
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• pp.421-432
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• 2010

In Korea, about 80 academic departments related to fire science are in operation throughout the country, but fire science is not included as a branch science in the science classification system acknowledged by the Ministry of Education, Science and Technology and its position as a science is not solid yet. In response to this problem, research is being made actively to establish fire science recently. This study aims at composing the fire service policy theory which is one of sub areas of fire science. First, the concept of fire service policy should be established, and fire service policies should be divided into different types. In addition, it is necessary to examine the direction of the development of fire service policies in Korea, and the unique characteristics of fire service policies should be described. Next, we will mention fire service policy making and participants, theories on the determinants of fire service policies, the execution of fire service policies, and the evaluation of fire service policies. Particularly, based on the peculiarity of fire service, it is necessary to explain policies on fire prevention and precaution, fire investigation, rescue and first aid, public campaigns for safety and prevention, fire insurance, etc. Finally, we suggest the future directions of fire service policies according to the change of environment in the future.

• Journal of Korean Ophthalmic Optics Society
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• v.21 no.3
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• pp.275-280
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• 2016

Purpose: This study is intended to look into the difference in surgery effects through the analysis of risk factors on how the common adult diseases among Korean adults diseases (glaucoma, hypertension and diabetes) are affecting cataract. Methods: Cataract surgery patients' daily records at hospitals in Jeonnam were used as analysis data. Factors - which can affect the results of medical treatment before and after an operation - were classified into the input, process and outcome of medical treatment. The medical treatment and patient characteristics were reflected as the input of medical treatment, and clinical results, functional status and general status as the process of medical treatment. Results: There was a close relationship between adult diseases of glaucoma, diabetes and hypertension, and cataract. Visual acuity of adult diseases patients was 10% lower than of non-adult diseases patients. And for post-surgery it was around 16% difference in refractive error and visual acuity between two groups. Conclusions: According to a study result, the cataract has been confirmed that there is a close relationship of Adult disease patients's glaucoma, diabetes and hypertension. Depending on the type about these adult diseases, before and after cataract surgery, vision and refractive power was found to indicate a significant difference when compared with conventional low normal adult control.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.7 no.3
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• pp.23-31
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• 1987

In land treatment systems for organic waste removal, especially rapid intiltration method is well known as less climatic restrictions and less field area requirements as against the others. Therefore the present study on rapid infiltration is aimed to survey the waste removal rate, infiltration rate, variation of dissolved oxygen due to biological oxygen absorption and pH decrement using pilot infiltration column filled with permeable soil(sand) as media, also to find the waste load(COD) per unit area and nitrate conversion ratio from TKN. The results obtained here are as follows. 1) When the depth of sand layer is more than 1 meter, the COD removal would be reached steadly to 90% or more under the infiltration rate below 15~20cm/day, and would be no problem due to leached organic pollutants considering the depth of ground water table. 2) The COD removal per unit area($m^2$) can readily be expected to 10~14g/day with proper operation, and the decomposition of substrate would be attained mostly at the surface layer of the media. 3) Generally the conversion of TKN to the $NO_3{^-}$-N is seemed to be proportional to the COD removal rate if provided proper retention time.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.33 no.4
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• pp.1619-1629
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• 2013

It turned out that there was a direct or an indirect relationship among global warming, urban heat island effects, urban and traffic environments, and public's health. In particular, unusual climate phenomena such as frequent heavy rainfall and scorching heat in a row that had rarely happened before have a negative effect on quality of life for people living in urban areas. This study focuses on the effects of roadway geometric design and traffic conditions on air temperature of roadside in Seoul Metropolitan Areas, controlling of roadway micro-climate environment. Five roadway segments containing different roadway and traffic conditions in terms of traffic median with trees, street trees, traffic volume and average travel speeds were surveyed. According to statistical results(t-test) from three roadway air temperature regression model estimations, air temperature is found to be different from one another in three periods-morning, afternoon and evening. Regarding roadway geometric design, air temperature of urban roads with vegetated median strips is lower about 1.3~2.2 degrees in celcius. Higher traffic volumes per lane and lower average travel speeds will tend to increase roadside air temperature, and efficient traffic operation policies can protect from increasing roadside air temperature in urban areas.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.33 no.4
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• pp.1581-1589
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• 2013

The aim of this study is to suggest a methodology for calculating the peak-hour ratio of passengers at urban railway stations by reflecting the characteristics of passenger demand patterns and the land use inventory of stations. To achieve this, urban railway stations in Seoul are divided into three groups by using factor analysis and cluster analysis. For each station group, we calculate five and four variables related to the passenger demand patterns and the land use inventory of stations, respectively, as well as the peak-hour ratios of passengers. Among these nine variables, average daily passengers and the location quotient (LQ) index for business services are selected as the classification criteria for station groups based on statistical tests. Using the two variables, a group allocation process is suggested to estimate the peak-hour ratio of passengers for a newly-constructed station. Evaluation results based on thirteen stations show that the proposed methodology produces lower errors than the currently-used guideline does. The results of this study contribute to establishing efficiently construction and operation plans for newly-constructed stations.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.40 no.10
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• pp.629-636
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• 2016

This study presents the development of an acid resistance velocity sensor that is used for measuring velocity inside a copper sulfate plating bath. First, researchers investigated the acid resistance coating to confirm the suitability of the anti-acid sensor in a very corrosive environment. Then, researchers applied signal processing methods to reduce noise and amplify the signal. Next, researchers applied a pressure-resistive sensor with an operation amplifier (Op Amp) and low-pass filter with high impedance to match the output voltage of a commercial flowmeter. Lastly, this study compared three low-pass filters (Bessel, Butterworth and Chebyshev) to select the appropriate signal process circuit. The results show 0.0128, 0.0023, and 5.06％ of the mean square error, respectively. The Butterworth filter yielded more precise results when compared to a commercial flowmeter. The acid resistive sensor is capable of measuring velocities ranging from 2 to 6 m/s with a 2.7％ margin of error.

• Fire Science and Engineering
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• v.24 no.6
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• pp.61-68
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• 2010

In this paper, a research and development result for the implementation of single station fixed temperature detector for residential fire prevention is described. The detector was developed for the certification in Japanese market because of very low domestic market situation. It is in the situation that there is no other regulation especially for residential detectors in Korea, Japanese case has been reviewed. Investigation of domestic legal circumstances and a comparative study for the test standard owned by KFI (Korea Institute of Fire Industry & Technology) and JFEII (Japan Fire Equipment Inspection Institute) respectively are also indicated. The detector alarms with a buzzer and an indicating LED. In the implementation ultra low power MCU(Micro Controller Unit) is applied to control the sleeping state and the monitoring state properly with low current consumption. To sense the temperature fast response thermistor is adopted in the design of fixed temperature residential detector. Automatic test function and alarm stop function are also considered in the design. The major factors which influence to current consumption are explained for the purpose of design reference. Main electronics circuit parts related to it's characteristics of the detector are described. It is explained that the measured current and experimental result of the battery discharge can be met over 10 years operation.