• Knowledge Management Research
• /
• v.20 no.2
• /
• pp.197-216
• /
• 2019

The Korean government has been focusing on supporting technology startups to solve social and economic problems such as low growth, declining economic growth rate, rising youth unemployment rate and lack of new growth engine. Although the failure rate of young technology startups is very high, relevant researches are still scant. On the basis of previous researches, this study has identified four growth factors of technology startups: characteristics of entrepreneurs, technical superiority and originality of business items, focused marketing strategy, and follow-up government support projects. Five young technology startup cases were selected and analyzed in the cosmetics industry which were supported by the Six-month Challenge Platform project of Chungbuk Creation Economic Innovation Center. The main findings of the case study were as follows: First, product development through inhouse R&D rather than external contracted R&D was beneficial to acquiring follow-up government support projects and external investment. Second, choosing a small niche market and concentrating marketing efforts on the target market had a positive effect on firm performance. And, third, relevance of entrepreneurs' college major and technological originality of business items were confirmed to influence firm performance positively in the early stage. The results are expected to help young technology startups survive successfully and establish a foothold for growth in their early stage.

• Structural Engineering and Mechanics
• /
• v.83 no.4
• /
• pp.451-463
• /
• 2022

The present study deals with forced vibrations of an elastic circular plate supported along its circular edge by unilateral elastic springs. The plate is assumed to be subjected to a uniformly distributed and a concentrated load. Under the combination of these loads, equations of motion are explicitly derived for static and dynamic response analyses by assuming a series of the displacement functions of time and other unknown parameters which are to be determined by employing Lagrangian functional. The approximate solution is sought by applying the Lagrange equations of motions by using the potential energy of the external forces that includes the contributions of the edge forces and the external moments, i.e., those of the effects of the boundary condition to the analysis. For the numerical treatment of the problem in the time domain, the linear acceleration procedure is adopted. The tensionless character of the support is taken into account by using an iterative process and, the coordinate functions for the displacement field are selected to partially fulfill the boundary conditions so that an acceptable approximation can be achieved faster. Numerical results are presented in the figures focusing on the nonlinearity of the problem due to the plate lift-off from the unilateral springs at the edge support.

• Journal of the korean academy of Pediatric Dentistry
• /
• v.44 no.2
• /
• pp.243-255
• /
• 2017

Cardiopulmonary resuscitation (CPR) is an emergency treatment that stimulates blood circulation and breathing when the function of the heart stops or stops breathing. CPR can be divided by basic life support (BLS) and advanced life support (ALS). BLS involves the use of chest compression to force the blood flow to the main organs, rescue breathing to improve the breathing to the respiratory failure patient and the use automated external defibrillator (AED). The categories of advanced life support include advanced cardiovascular life support (ACLS) for adult and pediatric advanced life support (PALS) for children. In the treatment of dental care for children, which is extremely difficult to deal with, and for a variety of reasons, the use of sedation is considered to treat the children who are unlikely to cooperate with dentistry. This is why there is an increasing possibility of an emergency situation involving cardiac arrest. PALS includes the BLS, and it presents a systematic algorithm to treat respiratory failure, shock and cardiogenic cardiac arrest. In order to manage emergency situations in the pediatric dental clinic, respiratory support is most important. Therefore, mastering professional PALS, which includes respiratory care and core cases, particularly upper airway obstruction and respiratory depression caused by a respiratory control problem, would be highly desirable for a physician who treats pediatric dental patients. Regular training and renewal training every two years is necessary to be able to immediately implement professional skills in emergency situations.

• Journal of Convergence for Information Technology
• /
• v.10 no.1
• /
• pp.169-177
• /
• 2020

The purpose of this study is to find ways to enhance the effectiveness of childhood teachers by recognizing both internal and external variables that affect their efficacy. Based on prior research, personality characteristics were selected as internal variables that affect the sense of teacher efficacy and social support was selected as external variables to set the effect of personality characteristics and social support on the efficacy of childhood teachers as research issues. 285 teachers from kindergartens and daycare centers located in Daegu and Gyeongsang-bukdo Province were selected for the study. The analysis of data was conducted using the SPSS 22.0 program to examine the general characteristics of the study target, and the analysis was conducted stepwise to look at the influence of each of the variables on the teacher's. Personal teacher efficacy is shown to affect Conscientiousness, nervousness, openness to experience, and evaluation support among personality characteristics, and Conscientiousness, Agreeableness and nervousness affect general teacher efficacy. The results of this study suggest that the character characteristics and social support of childhood teachers are among the variables that affect teacher efficacy.

• Journal of Families and Better Life
• /
• v.26 no.6
• /
• pp.95-105
• /
• 2008

This study examined the mediation effect of life satisfaction between social support and loneliness. The subjects were two hundred and eighty fifth grade elementary school and second grade middle school adolescents in Seoul. The instruments used were questionnaires about loneliness and other factors relevant to loneliness. Social support factors existing in an adolescent's external environment include the support of parents, peers, and teachers. And life satisfaction as a psychological characteristic was concerned with the adolescent's sense of self, school life, home environment, and family relations. Data were analyzed by using the t-test, Pearson's correlation and regression. Major findings were as follows: (1) There were significant differences in parent and teacher support, satisfaction with school life, home environment, and family relations between early adolescents and mid adolescents. (2) Parental, peer, and teacher support, contentment with oneself, school life, home environment, and family relations were negatively related to the fifth-grade early adolescent's loneliness. Peer support and contentment with oneself, school life, and home environment were negatively related to the second-grade middle adolescent's loneliness. (3) Life satisfaction had a mediation effect between peer, parental, and teacher support and loneliness in fifth grade early adolescence. Whole life satisfaction had a mediation effect between only peer support and loneliness.

• The Transactions of the Korean Institute of Power Electronics
• /
• v.10 no.5
• /
• pp.468-480
• /
• 2005

The overall performance of AC servo system is greatly affected the uncertainties of unpredictable mechanical parameter variations and external load disturbances. To overcome this problem, it is necessary to know different parameters and load disturbances subjected to position/speed control. This paper proposes an on-line identification method of mechanical parameters/load disturbances for AC servo system using support vector regression(SVR). The experimental results demonstrate that the proposed SVR algorithm is appropriate for control of unknown servo systems even with time-varying/nonlinear parameters.

• Korean Journal of Social Welfare Studies
• /
• no.36
• /
• pp.203-225
• /
• 2008

The purpose of this study is to examine how much the external locus of control, social support, self-esteem, and adoption decision making process influence to teen parents' grief and find out the differences depending on meeting the baby, breast-feeding, anticipating the meeting the baby, ceremony for separation, and exposing their grief by themself or to others. Data was analysed with multiple regression and t-test. With the result of multiple regression analysis, the higher external locus of control, pressure of birthfather, regrets for adoption decision are, the higher grief is, and the lower support of friends and self-esteem are, the higher grief is. And It is estimated high grief statically among the group of breast-feeding, anticipating the baby, no ceremony for separation. But the group exposing their grief by self or to others felt low grief. On the basis of the results, we will find out the meaningful contents for intervention. The staffs of birthmother shelter and social worker don't overlooking the relationship between birthmother and birthfather and enforce the internal locus of control, self-esteem. Above all we will intervene about exploring the adoption decision making and facilitate the exposure of feeling related to surrendered baby(guilt, anxiety, sadness, shame, fear).

• Journal of Distribution Science
• /
• v.13 no.6
• /
• pp.71-78
• /
• 2015

Purpose - This study attempts to analyze whether or not there are characteristics among the top management of companies that promote corporate performance at venture companies. It investigates the characteristics of the human and social capital that are inherent in top management at a venture company and conducts an empirical analysis of hypotheses examining if these characteristics will affect utilization of the governmental R&D support system as well as affect the firm's initial success. Research design, data, and methodology - This study conducted theoretical and empirical research together to accomplish the goal of the study. The pilot study researched human capital and social capital as the independent variables; the governmental R&D support system as the parameter; and, the initial success as the dependent variable. The empirical study carried out research on the model, establishment of hypotheses, and the statistical treatment. A survey was conducted targeting top management of high-tech venture companies in Daedeok Innopolis; 500 questionnaires were distributed; and, 222 were collected. Results - The human and social capital inherent in top management at venture companies in the early stages of their existence become good evaluation data for those who are invested in similar resources. If top management includes strong human and social capital, access to external resources will be easier; these will have a positive influence on the selection of overnmental support systems; and, this proper support will also have a positive influence on the initial success of the venture company. The results revealed the following. First, it was found that when the educational level and functional background, (the top management human capital), are the output function, top management human capital had a significant influence on selection of governmental R&D support funds. Second, it was found that the internal social capital and external social capital, (the top management social capital), had a significant influence on selection of governmental R&D support tasks. Third, it was found that selection of the governmental R&D support tasks at the start of the venture company had a positive influence on the corporate financial performance such as sales, business profits, and the increase in workers; and, had a significant influence on nonfinancial performance such as market share, competitive position, product competitiveness, and the future product development. Conclusions - Selection of the governmental R&D support system is not recognized as part of the direct sales of a venture company in its early stages, but as it can reduce costs for technical development and helps significantly in creating test products and mass production, it has a positive influence on the company's financial performance and nonfinancial performance as a result. Therefore, companies should take great efforts to frequently be selected as a candidate in the governmental R&D support system, as it can help facilitate R&D that requires extensive funds. As a result, companies can expect effects such as job creation and patent applications and they can advance future product sales.

• Women's Health Nursing
• /
• v.18 no.1
• /
• pp.49-61
• /
• 2012

Purpose: The purpose of this study was to examine the experiences of the use of external breast prostheses among breast cancer survivors in Korea. Methods: A qualitative descriptive study was conducted, using focus groups. Data were collected from breast cancer survivors who were patients of C women's hospital in Seoul, Korea. Data were analyzed using content analysis in order to identify significant themes. Results: Participants included forty breast cancer survivors who had mastectomy as a surgical treatment. Four themes emerged from the collected data were: 1) concern over the high price of external breast prosthesis, 2) irregular use of external breast prosthesis, 3) unsatisfied with mastectomy bra, and 4) wanting to hide or not to talk about using breast prosthesis openly. Conclusion: Since most participants reported irregular use and negative experiences related to external breast prosthesis or mastectomy bra use, healthcare workers should allow more time for proper fitting and counseling and consulting with breast cancer survivors. In addition, health care providers as well as family and friends should keep in mind that cancer survivors need support that can help them cope by using positive reframing. Furthermore, improvements in the coverage of costs and services are needed for these women. This would be helpful for breast prosthesis users.

• Wind and Structures
• /
• v.11 no.6
• /
• pp.479-496
• /
• 2008

In this paper, computer simulation of wind flow around a single cooling tower with louver support at the base in the KAZERUN power station in south part of IRAN is presented as a case study. ANSYS FLOTRAN, an unstructured finite element incompressible flow solver, is used for numerical investigation of wind induced pressure load on a single cooling tower. Since the effects of the wind ribs on external surface of the cooling tower shell which plays important role in formation of turbulent flow field, an innovative relation is introduced for modeling the effects of wind ribs on computation of wind pressure on cooling tower's shell. The introduced relation which follows the concept of equivalent sand roughness for the wall function is used in conjunction with two equations ${\kappa}-{\varepsilon}$ turbulent model. In this work, the effects of variation in the height/spacing ratio of external wind ribs are numerically investigated. Conclusions are made by comparison between computed pressure loads on external surface of cooling tower and the VGB (German guideline for cooling tower design) suggestions.