• ETRI Journal
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• v.27 no.2
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• pp.206-218
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• 2005

We measure and compare externalities of IT and R&D capital stocks in different Korean industry sectors using inter-industry input-output tables of 1985, 1990, 1995 and 2000. We also compute the multiplier effects that relate to the directions of future economic effects. The key findings are as follows. First, we observed continuous capital deepening in all nine industries over the period of 1985 to 2000. Second, the backward multipliers of IT capital were the highest in the manufacturing industry. As for inter-industry externalities, the indirect backward multipliers, which exclude intra-industry backward multiplier effects within the industry, were also the highest in the manufacturing industry. Third, the forward multiplier effects of IT capital stock were the most substantial in the construction industry during the 1980s and in the manufacturing industry thereafter. Finally, using the transition multiplier matrix reflecting the backward effects of the two capitals in the past, the economic backward effects, especially the external economic effects, are predicted to increase through 2010 among all industries. The above findings suggest that, in order to maximize the forward and backward effects of the ever-increasing IT capital, we need to formulate an industry policy reducing the cost of capital accumulation in the manufacturing industry through improvement in productivity of the IT industry.

• Journal of Korean Public Health Nursing
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• v.28 no.2
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• pp.258-269
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• 2014

Purpose: This study was conducted in order to present the effects of case management of a home visiting health service for clients with hypertension. Method: One-group pretest-posttest design was used. The subjects were 280 clients who received case management among the first and second registered group. The data were eight-week-case management results from January to December, 2010. In order to evaluate the effect of the visiting nursing service, biological indexes(blood pressure, total cholesterol, triglyceride, high density lipoprotein, low density lipoprotein, BMI) and self-care abilities(knowledge/attitude of hypertension, management of medication, nutritional care, confidence of self care) were measured. Result: Biological indexes and self-care abilities were improved, except total cholesterol, low density lipoprotein. Conclusion: The case management of home visiting health service by public health centers is considered to be an effective nursing service. Therefore, greater effort is needed for better maintenance of case management, and more research is needed in order to examine a variety of biological indexes.

• Steel and Composite Structures
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• v.16 no.4
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• pp.389-415
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• 2014

This study deals with dynamic model of composite sandwich panels with functionally graded flexible cores under low velocity impacts of multiple large or small masses using a new improved higher order sandwich panel theory (IHSAPT). In-plane stresses were considered for the functionally graded core and face sheets. The formulation was based on the first order shear deformation theory for the composite face sheets and polynomial description of the displacement fields in the core that was based on the second Frostig's model. Fully dynamic effects of the functionally graded core and face-sheets were considered in this study. Impacts were assumed to occur simultaneously and normally over the top and/or bottom of the face-sheets with arbitrary different masses and initial velocities. The contact forces between the panel and impactors were treated as internal forces of the system. Nonlinear contact stiffness was linearized with a newly presented improved analytical method in this paper. The results were validated by comparing the analytical, numerical and experimental results published in the latest literature.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.22 no.1
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• pp.64-71
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• 1997

Digital communication channels are imparied by linear effects such as dispersion, ISI(intersymbol Interference), fading phenomenon etc. But, the practical channel equalization system is required to design for compensating the nonlinear distortion caused by harmonic distortion etc. This paper is a study on the performance of nonlinear channel equalization using RBF(Radial Basis Funclion) network, which has the equivalent structure to the optimal Basian filter. Expecially, the variance of RBF network is modifiedby nonlinear polynomial filters to compare the convergence characteristic of nonlinear channel equalization. Experimental results show that the modified RBF network achieves the faster convergence property than conventional RBF network. Moreover, the RBF network ofhigher order variance modified represents the better performance than that of lower order variance in the bandpass channels and second/third order polynomial channels.

• Structural Engineering and Mechanics
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• v.61 no.1
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• pp.49-63
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• 2017

This paper presents an original hyperbolic (first present model) and parabolic (second present model) shear and normal deformation theory for the bending analysis to account for the effect of thickness stretching in functionally graded sandwich plates. Indeed, the number of unknown functions involved in these presents theories is only five, as opposed to six or even greater numbers in the case of other shear and normal deformation theories. The present theory accounts for both shear deformation and thickness stretching effects by a hyperbolic variation of ail displacements across the thickness and satisfies the stress-free boundary conditions on the upper and lower surfaces of the plate without requiring any shear correction factor. It is evident from the present analyses; the thickness stretching effect is more pronounced for thick plates and it needs to be taken into consideration in more physically realistic simulations. The numerical results are compared with 3D exact solution, quasi-3-dimensional solutions and with other higher-order shear deformation theories, and the superiority of the present theory can be noticed.

• Korean Journal of Human Ecology
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• v.13 no.6
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• pp.917-926
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• 2004

This study examines the effects of consumer counseling education on the work performance and work satisfaction of consumer counselors, controlling the effects of other variables. The results of this study is as below: First, approximately 70% of consumer counselors have not had any education pertinent to their work. The level of work performance was highest in listening to customers' complaints, and then consistence of counseling work and explanation for counseling were next. Professionality was the last in order. Second, consumer counseling education did not affect the work performance. Instead, the number of counselors and work experience, along with whether the counselor majored in consumer studies, were more likely to increase the performance. Finally, educating counseling skills did not affect the level of work satisfaction. Instead, the work performance affected the level of work satisfaction. The number of workers and income were positively related with the level of work satisfaction.

• International Commerce and Information Review
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• v.10 no.3
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• pp.163-195
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• 2008

This paper want to do the feasibility analysis that it uses financial statements in order to attract foreign investment to enter in the Busan area. And this paper would be presented the plan about foreign investment revitalization. To that end, this paper would be deployed the following methods and scope. First, It defines to the concept of foreign investment, foreign investment region, and foreign-invested enterprises, I wish to loot at the economic effects of positive and negative effects through foreign investment. Second, this study's scope would be set up foreign investment area of Busan, and investigate the land development cost of invested enterprises, construction cost of enterprises burden, expected revenues, etc. Third, it classified three industry for the feasibility analysis of entered enterprises, so would be yield industry-specific analysis using financial statements to be pre-research. Forth, this paper is suggested a revitalization plan for efforts to attract foreign investment, for the future through economic effective analysis of foreign invested-enterprises.

• Korean Journal of Human Ecology
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• v.10 no.3
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• pp.237-251
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• 2001

The purpose of this study was to verify the effects of group psychotherapy on recovery of self-identification with the unemployed homeless. To this end, 28 attending welfare-centers in Seoul area were sampled to be subject to 12 rounds of group psychotherapy for 6 weeks. In order to determine the effects the, test, preliminary test and post-program test were conducted. Every round of the program activities were video-taped, while being observed. The results of this study were as follows. First, the group psychotherapy influenced positive effect. Especially, the unemployed homeless had a opportunity of self-comprehension, self-insight, catharsis, etc. Second, during group psychotherapy, individual characteristics of the unemployed homeless were determined. Third, during group psychotherapy, the unemployed homeless complained about family problem, health, alcoholism, etc.

• Journal of the Korean Institute of Navigation
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• v.25 no.1
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• pp.11-22
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• 2001

Nowadays, it is planning to establish a coastal VTS in Korean southern coastal waters in order to enhance the safety of vessel traffic and to protect the marine environment. But, it surely needs over ten billions Won to establish, operate and maintain the above mentioned coastal VTS. Therefore, this paper proposes the VTS cost-benefit analysis model to confirm the reasonability and decide the priority of the project. This model has three distinct processes. Fist, it is the identification in qualitative terms of the effects of a given proposal. Second, it quantify the specified effects in physical terms. Third, it is the evaluation of the total effects of project. The proposed model in this Paper will contribute to the confirmation and the priority of the project in future.

• Journal of Fisheries and Marine Sciences Education
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• v.23 no.3
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• pp.468-476
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• 2011

This research is to investigate the effects of exercise adherence due to the leisure satisfaction of marine sports participants. In this paper, we will provide a basic database to vitalize marine sports. In order to analyze the result, we conducted a survey targeting 326 participants from 2010 Busan metropolitan city marine sports. The following results are obtained after analyze the data using SPSS/PC+ Win. 15.0 with a correlation analysis and a multiple regression analysis. First, all of the sub-factors from leisure satisfaction and exercise adherence show a positive correlation after analyzing the relationship between the leisure satisfaction and the exercise adherence of marine sports participants. Second, after analyzing the effects of exercise adherence according to the leisure satisfaction of marine sports participants, the result showed that the egoistic satisfaction influences the exercise capacity. Therefore, the data shows that the psychological satisfaction affects exercise environment, exercise companion, exercise habits and exercise attention.