• Geomechanics and Engineering
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• v.17 no.5
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• pp.421-427
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• 2019

Coastal erosion is becoming a significant problem in Greece, Bangladesh, and globally. For the prevention and minimization of damage from coastal erosion, combinations of various structures have been used conventionally. However, most of these methods are expensive. Therefore, creating artificial beachrock using local ureolytic bacteria and the MICP (Microbially Induced Carbonate Precipitation) method can be an alternative for coastal erosion protection, as it is a sustainable and eco-friendly biological ground improvement technique. Most research on MICP has been confined to land ureolytic bacteria and limited attention has been paid to coastal ureolytic bacteria for the measurement of urease activity. Subsequently, their various environmental effects have not been investigated. Therefore, for the successful application of MICP to coastal erosion protection, the type of bacteria, bacterial cell concentration, reaction temperature, cell culture duration, carbonate precipitation trend, pH of the media that controls the activity of the urease enzyme, etc., are evaluated. In this study, the effects of temperature, pH, and culture duration, as well as the trend in carbonate precipitation of coastal ureolytic bacteria isolated from two coastal regions in Greece and Bangladesh, were evaluated. The results showed that urease activity of coastal ureolytic bacteria species relies on some environmental parameters that are very important for successful sand solidification. In future, we aim to apply these findings towards the creation of artificial beachrock in combination with a geotextile tube for coastal erosion protection in Mediterranean countries, Bangladesh, and globally, for bio-mediated soil improvement.

• The Korea Journal of Herbology
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• v.31 no.4
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• pp.43-51
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• 2016

Objectives : This study was conducted with objectives of comparatively investigating effects of original Kyungokgo and Iksuyongjingo plus Sparassis crispa which is gamibang of Kyungokgo on antioxidant improvement, immunity improvement, and sensory evaluation.Methods : Total phenol and DPPH scavenging activity were measured to determine antioxidant improvement of original Kyungokgo and Iksuyongjingo plus Sparassis crispa. While, blood and serum study were conducted and effect on the cytokines were observed from the immunosuppressed rat induced by methotrexate (MTX). Control group was administered with a drinking water, Kyungokgo group was administered with a original Kyungokgo 200 mg/kg, and Iksuyongjingo plus Sparassis crispa group was administered with a Iksuyongjingo plus Sparassis crispa 200 mg/kg for 20 days. Further, intensity and preference evaluation were performed as sensory evaluation.Results : It was observed that Iksuyongjingo plus Sparassis crispa significantly increased total phenol and DPPH scavenging activity, proving that these can improve antioxidant activities. In the immunosuppressed rat, Iksuyongjingo plus Sparassis crispa significantly decreased IL-2 level, significantly increased Il-10 level, and significantly increased neutrophils, RBC, HGB, and HCT levels, indicating that it is effective in increasing immunity. Further, Iksuyongjingo plus Sparassis crispa significantly improved intensity and preference in the sensory evaluation.Conclusions : From the above results, it is concluded that Iksuyongjingo plus Sparassis crispa which is gamibang of Kyungokgo can act effectively on improving antioxidant activity and immunity, and can attribute convenient intake by improving diet preference.

• The Korean Journal of Community Living Science
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• v.28 no.4
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• pp.625-640
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• 2017

The purpose of this study was to identify the effect of family support and participation in activities on the improvement in interpersonal relationships perceived by rural multicultural and non-multicultural household adolescents and compare the results with the perspective of Sullivan and Bowlby. For this purpose, the data of 403 persons from multicultural households and 348 persons from non-multicultural households were analyzed and several conclusions were drawn. Firstly, the family support variable had the greatest effect on the improvement in interpersonal relationships in both the rural multicultural and non-multicultural household adolescents. Secondly, the number of activities experienced at home significantly affected the improvement in interpersonal relationships in both types of adolescent. The effects of age, number of friends, and number of traditional activities on the improvement in interpersonal relationships differed for each type of household adolescent. And to conclude, the significant factors affecting the interpersonal relationships of the rural adolescents were their family and parents. Therefore, this study supports Bowlby's perspective on adolescents' interpersonal relationships. Based on the results, this study proposed plans to improve the interpersonal relationships of rural adolescents through family support and activity participation. Also, a plan for follow-up studies was suggested.

• Journal of Information Technology Services
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• v.13 no.4
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• pp.397-410
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• 2014

For mobile service organizations, it is one of the most important tasks to reflect users' opinions rapidly and accurately. In this study, the process is defined to elicit requirements of software/system improvement for mobile application by extracting and refining from users' opinion in mobile app, and detailed activities procession method in this processing are also proposed. The process consists of 3 activities to get requirements of software/system improvement for mobile app. First activity is to transform mobile app to software structure and define term dictionary. Second activity is to elicit simple sentences based on software from users' opinion and refine them. The last activity is to integrate and adjust refined requirements. To verify the usability and validity of the proposed process and the methods, the outputs of manual processing and semi-automated processing were compared. As a result, efficiency and improvement possibility of the process were confirmed through extraction ratio of requirements, comparison of execution time, and analysis of agreement ratio.

• Journal of Korean Society for Quality Management
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• v.45 no.4
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• pp.903-916
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• 2017

Purpose: The paper analyzes empirically the causal relationship between customer-oriented Quality circle activities and Business Performance for Korean service firms. We compare the operational characteristic behavior of the service firms and business performance. Methods: In this study, we used 3 variables, QC activities, Employee commitment and business performance. Especially, Service SME's QC Circle activities were analyzed in related with growth of company on the basis activities such as Leadership(team), improvement activity, Organizational learning, customer-focus activity and employee suggestion. Results: The result of analysis showed that employee commitment affected significantly on financial performance and non-financial performance and in turn, improvement activities, Organizational learning and customer-focus activity affected significantly on business performance (financial and non-financial). Conclusion: In the summary of the characteristics of this study based on the research results, first, segmenting the QCC activities in the service business into 5 elements can be considered to be differentiated from the existing researches in the aspect of utilizing the organization's objective-oriented variables differently from the researches utilized the variables related personal characteristics. Second, this study suggested the recent research results that suggested the problems of the QCC clearly, through which what new QC story approach was suggested has working level value in the aspect of activating the service QCC.

• Journal of the Korean Society of Earth Science Education
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• v.5 no.3
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• pp.307-315
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• 2012

The purpose of this study was to examine the effects of small inquiry method on space perception ability and creative personality. Testees of this research are 36 elementary pre-service teachers taking an astronomical observation class. Doing inquiry activity after 36 elementary pre-service teachers are classified into 6 Jigsaw small inquiry. Learning activity was split into two groups, expert group and a population. To find out research outcome, pre-test was executed space perception ability test, creative personality test. Analysis of test result was accomplished with statistical package SPSS 18.0 paired t testing hypothesis. The results of this study are as follows. First, 'source of season change' class using Jigsaw small inquiry method has effect on space perception ability improvement. This was interpreted that space perception ability improvement was effective because characteristic of Jigsaw small inquiry is made up of lots of semin Second, 'source of season change' class using Jigsaw small inquiry method has no effect on creative personality. This was interpreted that experiment and discussion activity getting accomplished in a short time has no effect on qualitative characterizing Creative Personality improvement.

• Korean Journal of Rural Living Science
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• v.9 no.2
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• pp.63-78
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• 1998

The purpose of this study is to investigate quality of life in farm households. This study examines some related factors which influence the well-being of the family life among the rural housewives, such as the farm management, the leisure activity and the information. Questionnaires are distributed to the 200 housewives residing in Anseong. The 187 data obtained are analyzed by means of descriptive statistics. The results show that the role of the rural housewives is very important, because they work not only at home but also in work. The leisure of rural housewives is activated and increased in the modern society. Also the rural housewives have some information systems and use the system appropriate to cope with their problems in the environments. The current government and the business policy should be reevaluated and revised for the improvement of the rural housewives.

• Journal of the Korea Convergence Society
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• v.7 no.1
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• pp.197-203
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• 2016

This study is to constructs the model by the relationship between the most important ones of TPM's step activities which are derived from the result of AHP analysis and the management performance. And it is to analyze whether step activities have impact on corporate performance through the mediating variable from a convergence point. Also it is to choose four step activities - irrational field and loss improvement, preparation and system establishment for the basic conditions of 5S, initial cleaning, loss analysis of facility efficiency - as independent variables, and to analyze the effect of TPM activity level as mediating variable on management performance as dependent variable. According to the analysis, four step activities don't have direct effect on corporate performance but TPM activity level as mediating variable has a full-mediated effect on corporate performance. That is, TPM activity level has been shown to play a role as mediating variable. Therefore, higher recognition of confidence in facility, awareness of self-development and definitive management of individual work shows TPM activity can contribute to corporate performance successfully.

• Journal of Korea Association of Health Promotion
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• v.4 no.1
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• pp.125-131
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• 2006

Background: Inadequate samples make laboratory tests delay cause errors, which will deteriorate the quality of the tests. Therefore, adequate samples are essential for reliable test result. To reduce the inadequate samples, they should to analyze problems and seek a way of improvement through CQI (Continuous Quality Improvement) activity. This will minimize errors during the test and produce a fast and accurate result. Eventrally, the qualily of entire test may be improved, and as a result, a good quality of medical care service may be provided. Methods: At first, inappropriate testing items were collected. Then, generating fctors and problems were investigated and analyzed in each case, In addition, the category with higher frequency wes primarily supervised. In consegalnce, a reduction of are dustion of improper testing sample was oxpected through continuous education and CQI activity. Conclusion : At the beginning of CQI activitv, the number of inadequate testing sample was of 8,591 total samples, which gives the frequency of 0.72%. As CQI activity was carried out the number of improper testing sample reduced to 58 out of 11,415 cases, which yields the frequency of 0,51%. One may notice the difference 0.2%. Among the inadequate sample(blood), there was a high frequency of hemolysis; thus, more of CQI activity is required for this specific matter. Because the occurrence of inadequate testing affects the clinical outcomes, it is extremely important that one manages each step of the procedure in collecting samples and mamtaines the quality of entire tests.

• Quality Improvement in Health Care
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• v.6 no.1_2
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• pp.150-160
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• 1999

Background : Because hospitals had to faced with financial hardship, we have to have more effective hospital management. In this study, we tried to improve job performance and to reduce cost maintaining safety in fields of patients care. Methods : Central Supply Room(CSR) staffs taught strategy of material cost reduction to middle level managers and staffs 14 times. All staffs and voluntary service workers, working in 33 nursing units, participated in this activity. We developed questionnaire to check the degree of participate in cost reduction activity and job performance in CSR, and quality improvement in the wards. Two hundred questionnaires were distributed and 197 returned. Results : Because CSR staffs developed new items and every item was managed at each department, stocks of each department were reduced. Overall, by comparing before and after cost reduction activity, almost 1.2 billion won reduced for one year. Staffs' loyalty and spirits of cost reduction were improved by changing clothes and duty environment. Furthermore, these activity improved patients' satisfaction. Conclusion : We suggest that CSR activity in a university hospital contributes to improve job performance and to reduce cost without any problem in patient care.