• 지식경영연구
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• 제20권2호
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• pp.197-216
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• 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
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• 제83권4호
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• pp.451-463
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• 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.

• 대한소아치과학회지
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• 제44권2호
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• pp.243-255
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• 2017

심폐소생술(cardiopulmonary resuscitation, CPR)은 심장의 기능이 정지하거나 호흡이 멈추었을 때 인공적으로 혈액을 순환시키고 호흡을 보조해 주는 응급처치이다. 심폐소생술은 기본생명구조술(basic life support, BLS)과 전문소생술(advanced life support, ALS)로 나눌 수 있다. 기본생명구조술은 주요 조직으로 혈류 공급을 강제적으로 하기 위한 흉부압박과 호흡정지 환자에게 구조호흡(rescue breathing) 그리고 심실세동을 개선해 주기 위한 자동제세동기(automated external defibrillator, AED)이 포함된다. 전문소생술의 범주는 성인을 대상으로 하는 고급생명구조술(advanced cardiovascular life support, ACLS)과 소아를 대상으로 하는 소아고급생명구조술(pediatric advanced life support, PALS)이 있다. 치과 치료에 극심한 공포를 가지며, 여러 이유로 치과 진료에 협조를 얻기 어려운 소아를 대상으로 하는 치료환경에서는 약물을 이용한 진정법이 고려된다. 이는 심정지를 포함한 응급상황이 발생할 가능성이 증가하는 이유가 된다. 소아고급생명구조술은 기본생명구조술을 포함하며, 심정지에 이를 수 있는 원인을 호흡, 순환장애 그리고 심인성으로 나누어 대처하는 체계적인 방법을 제시한다. 소아는 성인에 비해 심인성의 원인은 낮지만, 해부학적인 약점으로 인해 호흡이나, 순환장애에 의한 심정지의 가능성은 높다. 따라서, 스트레스를 많이 받은 아이를 치료하거나 진정법을 시행하는 소아치과의사는 소아고급생명구조술을 익힘으로써 응급상황에 적절히 대처할 수 있는 역량을 갖출 수 있으리라 사료된다.

• 융합정보논문지
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• 제10권1호
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• pp.169-177
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• 2020

본 연구는 유아교사 효능감에 영향을 미치는 교사 내, 외적 변인을 함께 알아봄으로써 유아교사 효능감을 높일 수 있는 방안을 모색하는데 그 목적이 있다. 선행연구를 바탕으로 교사효능감에 영향을 미치는 내적 변인으로 성격특성을 선정하였으며, 외적변인으로 사회적 지지를 선정하여 성격특성, 사회적 지지가 유아교사의 효능감에 미치는 영향은 어떠한가를 연구문제로 설정하였다. 본 연구대상은 대구, 경북에 위치한 유치원 및 어린이집 교사 285명이 선정되었다. 자료 분석은 연구대상의 일반적 특성을 살펴보기 위하여 SPSS 22.0 프로그램을 이용하여 기술통계분석을 실시하였고, 각 변인들이 교사효능감에 미치는 영향력을 살펴보기 위하여 단계적 중다회귀분석을 실시하였다. 연구결과 성격특성, 사회적 지지는 유아교사 효능감에 영향을 미치는 변인으로 나타났으며, 교수효능감 하위변인인 개인적 교사효능감에는 성실성, 신경성, 경험에 대한 개방성, 평가적지지가 영향을 미치며, 일반적 교사효능감에는 성실성, 친화성, 신경성이 영향을 미치는 것으로 나타났다. 이러한 본 연구의 결과는 유아교사의 성격특성, 사회적지지가 교사효능감에 영향을 미치는 변인 중 하나임을 시사한다.

• 가정과삶의질연구
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• 제26권6호
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• pp.95-105
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• 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.

• 전력전자학회논문지
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• 제10권5호
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• pp.468-480
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• 2005

서보 시스템의 전체 제어 성능은 기계적 상수의 변화와 부하 토크의 영향을 크게 받는다. 그러므로 서보 시스템의 성능을 향상시키기 위해서는 기계적 상수와 부하 토크를 정확히 알 필요가 있다. 본 논문에서는 Support Vector Regression(SVR)을 이용한 기계적 상수와 부하 토크 추정 알고리즘을 제안한다. 실험 결과는 제안된 SVR 알고리즘이 서보 시스템의 기계적 상수와 부하 토크를 정확하게 추정하고 있음을 보여준다.

• 사회복지연구
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• 제36호
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• pp.203-225
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• 2008

본 연구는 입양으로 자녀를 포기한 미혼모들이 경험하는 슬픔에 대한 외적통제소, 자아존중감, 사회적지지, 입양결정과정의 영향력의 정도와 자녀관계, 슬픔대처행동에 따른 집단 간 차이를 알아보기 위한 것이다. 이를 위해 자녀를 입양 보내고 난 후, 미혼모 보호시설 퇴소 직전의 159명의 미혼모들의 설문자료를 다중회귀분석과 t검증을 통해서 분석하였다. 연구결과 외적통제소가 높을수록, 입양결정을 후회할수록, 미혼부의 지지가 높을수록, 미혼부의 입양 압력이 높을수록 슬픔을 더 많이 경험하는 것으로 조사되었다. 또한 출산 후 자녀 및 슬픔대처행동 특성에 따른 t검증에서는 수유, 이별식, 타인에게 슬픔표현, 홀로 슬픔 표현, 자녀와의 만남에 대한 기대여부에 따라서 집단 간 슬픔의 차이가 나타났다. 이를 기초로 미혼모들의 미혼모 보호시설에 머무는 기간 동안 내적통제소를 강화시키는 실천개입을 해야 하며, 미혼부와의 관계에서 해소되지 않는 감정들을 좀 더 면밀하게 다루어줄 필요성이 제기된다. 또한 퇴소 전 슬픔의 감정을 충분히 해소하고, 표현할 수 있는 개입이 이루어져야 하며, 입양결정에 대한 충분한 탐색과 입양결정을 번복한 집단에 대한 차별화된 개입이 제공되어야 할 것이다.

• 유통과학연구
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• 제13권6호
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• pp.71-78
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• 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.

• 여성건강간호학회지
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• 제18권1호
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• pp.49-61
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• 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
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• 제11권6호
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• pp.479-496
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• 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.