• Polymer Science and Technology
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• v.6 no.2
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• pp.145-150
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• 1995

• Journal of the Korean earth science society
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• v.41 no.4
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• pp.391-404
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• 2020

This study identified and examined earth science education department programs in Korea. Major courses provided by 11 universities and their course requirements were analyzed, and the main research results are as follows. First, many basic courses, other major requisite, and elective courses are provided in geology, astronomy, and atmospheric science. oceanography, geophysics, earth environmental science, and natural disaster and energy resources had fewer major requisite courses provided in addition to basic courses, and few elective courses were offered. Second, many courses in science education focused on earth science, while others focused on general science and there were few courses that covered education theory regarding the specific subject. Third, science course application requirements emphasized the understanding of science in general or of earth science specifically. From the above results, additional studies are proposed to reflect on the current state and supplement these programs.

• Journal of the Korean Operations Research and Management Science Society
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• v.7 no.1
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• pp.51-57
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• 1982

During the course of history, more and more reliable birth control methods have become available. Hence, to a certain degree, the possibility of avoiding any or additional children, and of spacing the family building process has arisen. The advancement of six predetermination technology, whereby couples can influence the sex of their children, gives couples, another decision variable. Assuming a rational acting couple, we present a general decision-theoretic model which describes the family building process and its optimization through maximizing the expected utility concerning the spacing, ordering, sex, and number of their children.

• Journal of Korean Clinical Health Science
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• v.3 no.1
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• pp.276-289
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• 2015

Purpose. To efficiently manage hospitals, this study aims to analyze the general characteristics, common-type balance sheet, common-type profit and loss statement and financial ratio of a tertiary general hospital and use the results as basic data for future hospital development by comprehending causes for problems and analyzing hospital management. Methods. By using information about a tertiary general hospital, located in A Metropolitan City, provided through Alio (www.alio.go.kr), a public organization information provider, Health Insurance Review & Assessment Service, and Ministry of Health and Welfare, this study used data during 3 years(2011 to 2013) by analyzing the general characteristics, common-type balance sheet, common-type profit and loss statement, industrial mean ratio and financial ratio of hospitals. Results. This study came to the following conclusions through the general characteristics, common-type balance sheet, common-type profit and loss statement, industrial mean ratio, financial ratio, circular chart and ROI by analyzing the data from 2011 to 2013. Conclusions. Overall, A Tertiary General Hospital showed an increase in fixed cost due to the construction of J Hospital and even in the size of capital and assets. It also showed an increase in medical profit, but the increase of its medical cost was higher, resulting in a financial loss. Especially, this hospital showed a slight decrease in net profit, featuring a reduction in inventory turnover. When the management of A Tertiary General Hospital was predicted based on such features, this hospital is expected to improve its profit structure through the opening of J Hospital, and it is necessary for this hospital to increase and sustain the turnover rate of inventories accumulated by managing them better.

• Journal of Korean Dental Science
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• v.13 no.1
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• pp.1-10
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• 2020

Purpose: This study analyzes the clinical results of SNUCONE AF+II^® (SNUCONE Implant) implants placed in the edentulous region to determine the implant survival rate and the marginal bone healing pattern in the healing process. Materials and Methods: Two hundred forty implants placed in 131 patients with SNUCONE AF+II^® implant system from January 1, 2014 to December 31, 2014 at Cheongju Hankook General Hospital were followed up for 5 years. Result: We evaluated 240 SNUCONE AF+II^® implants of 131 patients from January 1, 2014 to December 31, 2014 at Cheongju Hankook General Hospital, and the results are as following: 1) Three implants were failed out of 240 implants of 131 patients and the survival rate was 98.75%. 2) The marginal bone resorption was 0.95±1.84 mm for 4 years after prosthesis placement, showing favorable result. Conclusion: Although long-term cumulative evaluations and studies should be performed in the future, SNUCONE AF+II^® implants show high cumulative survival and low marginal bone resorption according to the results of this study, which believed to give outstanding result in various dental implant procedure.

• The Korean Journal of Health Service Management
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• v.3 no.2
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• pp.65-75
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• 2009

This study aims at deriving any useful information necessary to strengthen the competitiveness for growth through empirical analyses on a general hospital located in a province in order to countermeasure the opening and competition of medical markets. The characteristics of user were identified on the basis of disease groups under KCD in the research method. In addition, the analysis on the expenses of diagnosis and treatment was divided into the treatment progress and degree of hospital resource utilization. And the regression was carried out to identify the impacts of characteristics of inpatient users on the degree of hospital resource utilization. As a result of major research, the inpatient users of the general hospital located in the provincial area in consideration of inpatient users were formed around the inpatient disease groups representative for Korea. And it was understood that most of residents within a distance of 40 minute by the public transportation were using. Although there are restrictions that the analyses were carried out for a general hospital in a province, the findings of this study can be considered a generalized model for the management of provincial general hospitals when we consider the current circumstance that the diagnosis and treatment are carried out by provincial medical institutions primarily for patients in general within the province, along with implications that any general hospital in Korea should be equipped with the facilities, equipments and human resources under the Medical Treatment Act.

• Korean Journal of Applied Biomechanics
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• v.17 no.1
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• pp.99-109
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• 2007

The purpose of the study is to examine the effect of the spring shoe through the comparison of spring shoe to general shoe. For this, 12 healthy females in the age from 20 to 30 years participated in the E.M.G. experiment with testing kinematic variables. Results indicated that there was significant differences in angle of ankel between the general and spring shoe. Specifically, the spring shoe showed a bigger angle of take on and a smaller angle of take off in walking than the general shoe. This mesns that the spring shoe does not have a significant effect to produce efficient and smooth walking. In addition, the spring shoes revealed a bigger rear-foot angle than the general shoe in the evaluation of rear-foot control function. This means that the rear-foot control function of the spring shoe is low compared to trhe general shoe. Meanwhile, there is no significant differences in angle of knee and angle of Achilles tendon between both shoes. In an analysis of E.M.G., the significant differences were found in gastrocnemius muscle, anterior tibial musculi, musculi rectus femoris, biceps muscle of thigh between both the general and spring shoe groups by the section. In the case of gastrocnemius muscle, the spring shoe showed a low muscle production of anterior tibial musculi than the general shoe. This is a result from structural nature of the sole of a foot of the spring shoe. The spring shoe performs a rolling movement through slightly large pronation toward front-foot from rear-foot in supprt time before taking-off of toe and the power for this movement is mainly produced from musculi rectus femoris.

• Journal of the Korea Furniture Society
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• v.17 no.3
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• pp.1-16
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• 2006

Based on data collected by the State Forestry Administration (SFA) and other databases, this paper describes the current status, future trend and general policies in China's forestry. Forestry sector plays an important role in GDP growth of China. As a result forestry industry value output is increasing day by day. There is huge gap between demand and supply of timber projected in 2010. As a result it is necessary to develop fast growing, high yield forest following some specific policies. The ultimate goals of forestry are to construct or improve industry infrastructure, overall upgrade of forest industry structure, income improvement of forest employees and peasants, polices renewal and technology improvement, acceleration of forest processing with high-tech.

• Journal of Fisheries and Marine Sciences Education
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• v.16 no.1
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• pp.50-59
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• 2004

Recently, many more fisheries and shipping high school students have entered college than those of the past. But, this trend could be attributed to the easy and various forms of selection for college admission. Thus the examinations of the college scholastic ability 2005 have added to the vocational search ability including verbal ability, mathematic ability, foreign language ability and inquiry ability. The vocational search ability in fisheries and shipping field is concluded the general fisheries science, general maritime science, general marine science and fisheries and shipping information management. This study analyzed the questions of the fisheries and shipping subject of vocational search field with high school 2nd students on October 2003. In result, this study identified some needed basic scholastic ability for fisheries and shipping high school students.

• Korean Journal of Metals and Materials
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• v.49 no.10
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• pp.780-789
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• 2011

The effects of alloyed carbon on the pitting corrosion, the general corrosion, and the passivity behavior of Fe18Cr10Mn0.4NxC (x=0~0.38 wt%) alloys were investigated by various electrochemical methods and XPS analysis. The alloyed carbon increased the general corrosion resistance of the FeCrMnN matrix. Carbon enhanced the corrosion potential, reduced the metal dissolution rate, and accelerated the hydrogen evolution reaction rate in various acidic solutions. In addition, carbon promoted the pitting corrosion resistance of the matrix in a chloride solution. The alloyed carbon in the matrix increased the chromium content in the passive film, and thus the passive film became more protective.