• The Korean Journal of Financial Management
• /
• v.14 no.1
• /
• pp.219-247
• /
• 1997

우리나라에서는 그 동안 유상증자(有償增資)시 주주배정(株主配定)(right offer)방식에 의하고 기업공개시의 발행가격도 일률적으로 산정(算定)되어 증권인수(證券引受)에 따른 인수기관(引受機關)(underwriter)의 역할이 제한되어 왔으나 앞으로는 증권발행방식이 다양화되어 발행가격의 결정을 포함한 인수기관의 역할이 강조될 것이다. 대부분 총액인수(總額引受)(firm commitment underwriting)방식을 택하는 미국자본시장에서 인수기관을 선정하고 발행조건들을 결정하는 방법에는 투자은행과의 협의(協議)(negotiation)에 의하는 방식과 비공개경쟁입찰(非公開競爭入札)(sealed bidding)에 의하는 방식이 있는데 많은 기업들은 상대적으로 비용이 많이 드는 협의발행을 선택한다. 본 연구에서는 이에 대한 가설들을 뉴욕증권거래소나 아메리칸증권거래소에서 거래되는 공익기업의 신주발행자료를 통해 실증 검정했다. 인수 스프레드(underwriting spread)는 발행금액에 관계없이 협의발행(協議發行)이 경쟁발행(競爭發行)보다 평균적으로 1.16% 높았으며 발행비용(發行費用)도 협의발행이 유의적인 수준에서 0.341% 정도 높았다. 비대칭정보하에서 신호균형(信號均衡)(signaling equilibrium)으로 설명할 수 없지만 협의발행에 의한 통합균형(統合均衡)(pooling equilibrium)의 가능성은 배제하지 못했다. 주식발행 발표일(發表日)(announcement date)을 전후해 인수방식에 따른 주가변동의 차이를 분석한 결과 대리인가설(代理人假說)은 부분적으로 지지했다. 발행일(發行日)(offering date)을 전후한 주가변동에 의하면 인수기관의 사전매각노력(事前賣却努力)이 협의발행하에서 더 높았으나 발행일 직후의 주가회복은 보이지 않아 인수방식에 따른 가격안정화(價格安定化) 노력의 차이는 없었다. 발행기업들간의 주가차별화의 정도를 분석한 결과 협의발행에서 인회활동(認淮活動) (certification effects)을 더 잘 할 수 있다는 사실을 지지하지 못했다.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2018.10a
• /
• pp.412-415
• /
• 2018

헌재, 대부분의 여론조사는 전통적 여론 조사 방식을 사용하고 있다. 그러나 이 방식은 온라인 상에서의 여론을 반영하지 못한다는 문제점이 존재한다. 따라서 이를 해결하고 온라인 상에서의 여론을 반영하기 위해, 비정형 뉴스 데이터를 이용한 지지율 분석 방안을 제안하고자 한다. 이 연구에서는 제안 방안을 알아보고 기존의 방식과 비교한 장단점, 시사점, 개선방안 등을 알아봄으로써 새로운 여론조사 방식의 제안을 목적으로 한다.

• Journal of Korean Tunnelling and Underground Space Association
• /
• v.19 no.2
• /
• pp.301-317
• /
• 2017

In this study, as an initial study for development of stability analysis program of a double-deck tunnel during life cycle, a structural analysis solver based beam-spring model for the double-deck tunnel is constructed. Effect of parameters(slab supporting type, depth of the tunnel and ground elastic modulus) is analyzed with the beam-spring model. The model is also compared and verified by commercial structural analysis program. It is considered that the slab supporting type affects the integrated behavior with segment lining and influence of intermediate slab on the stability of the tunnel decreases as the tunnel depth increases. The relationship between the ground elastic modulus and the effect of the intermediate slab on the segment lining needs further investigation.

• Journal of Digital Convergence
• /
• v.15 no.1
• /
• pp.23-34
• /
• 2017

This study investigated relative explanation of social support, ego-resiliency and stress coping strategies to help adaptive coping style of school-dropout adolescents under stress situation. To this end, 101 school-dropout adolescents were surveyed by visiting and requesting the outofschool youth supporting project, youth detention center, and adolescent protective and treatment facilities in Daejeon, Cheongnam, and Chungbuk. As analysis methods, descriptive statistical analysis, pearson's correlation, and hierarchical analysis were conducted and the research results are as follows. First, stress coping strategies showed positive relationship with social support and ego-resiliency. Second, a variable that showed greater explanation power for stress coping strategies was the environmental variable, the social support. Third, it was identified that there was greater explanation power when the environmental variable, the social support, and the personal variable, the ego-resiliency, were put in at the same time for stress coping strategies. According to the result, this study implies that schools, community, national policy effort and systemetic approach are required as well as improvement of personal coping capabilities in order to overcome difficulties school-dropout adolescents face.

• Journal of the korean Society of Automotive Engineers
• /
• v.9 no.2
• /
• pp.17-27
• /
• 1987

최근 자동차기술의 발달로 인한 차량의 경량화, 고급화 추세는 더욱 개선된 승차감을 요구하고 있다. 승차감에 영향을 미치는 주요인으로서는 엔진의 진동과 소음, 변속장치, 구동축 등의 구동 계통의 진동 및 소음, 그리고 노면으로부터의 진동, 외부 공기의 흐름에 의한 소음 등 여러가지가 있다. 엔진지지계는 이중 엔진의 진동 및 소음을 절연하는 기능을 맡고 있고 동시에 엔진하중의 지지, 변위제한, 충격흡수 등의 기능도 가지고 있다. 실제에 있어서 엔진지지계는 진동 및 소음 절연의 기능 외에 다른 기능도 갖고 있으나 이중 가장 어렵고 해석이 곤란한 것은 결국 진동절 연성능이라고 할 수 있다. 그러나 여러 가지 제약조건이 있으므로 최적의 진동절연특성의 실 현이 항상 가능한 것은 아니고 방진고무의 특성치난 지지각도 등의 어느 범위안에서만 선택이 가능하므로 실제 설계에 있어서는 적용상의 특정조건을 만족시키는 초기설계치를 정하여 그때의 진동절연특성을 평가하고 기준이하일때는 설계치를 재조정하여 다시 평가하는 접근방식이 실질 적이다. 따라서 이 설계과정에 필요한 엔진지지계의 진동절연특성해석 및 평가용 컴퓨터 프로 그램을 개발하였으며 그 해석치와 실험결과를 비교하여 타당성을 입증하였다.

• Journal of Hospice and Palliative Care
• /
• v.18 no.1
• /
• pp.35-41
• /
• 2015

Purpose: This study was conducted to examine how patients' coping style and social support affect post-traumatic stress disorder (PTSD) in breast cancer patients who are treated with chemotherapy. Methods: The sample consisted of 134 outpatients who received breast cancer treatments at the cancer clinic of a university hospital. The collected data were analyzed by frequency, percentage, t-test, ANOVA, ${\chi}^2$-test, Pearson correlation coefficients using SPSS for Windows, version 18.0. Results: Among total, 26.9% of patients were classified into a high-risk PTSD group. In the high-risk group, a positive correlation was found between active and passive coping styles and between social support and active coping styles. Conclusion: In this study, the stronger the social support was, the more active the coping style was for high-risk PTSD patients with breast cancer. Considering the fact that cancer requires life-long self-management, strong social support could improve patients' healthcare capability. Furthermore, solid social support could effectively reduce the stress level and improve the quality of life for breast cancer patients in the high-risk PTSD group.

• Journal of the Korean GEO-environmental Society
• /
• v.11 no.11
• /
• pp.37-45
• /
• 2010

In this study, the value of numerical analysis was compared to the measured value of horizontal displacement during construction. And also, the value was reviewed by comparing with numbers calculated by SUNEX program and EXCAV program. When comparing to suggested values of the maximum horizontal displacement in clayey layer, the displacement caused by the IPS system is larger than one by the Strut girder type system. When comparing the result of SUNEX program to that of EXCAV program, the SUNEX program interprets larger value. It could be concluded the result of SUNEX program is closer to the suggested value, 0.5%H, in clayey layer. The result also shows that the internal friction angle(${\Phi}$) is the key factor of developing horizontal displacement rather than type of supporting systems or materials. That means small horizontal displacement occurs in sandy layer having large value of the internal friction angle, whereas vice versa in clayey layer having small value of the internal friction angle. Therefore, the result of EXCAV program is larger in sandy layer and vice versa in clayey layer. When comparing the measured result during construction to the value of 0.5%H, the measured result is 1.4 times greater than the value of 0.5%H. In contrast, the result of SUNEX program is only 78.1% of the value of 0.5%H and the one of EXCAV program is just 18.1% of that. This result shows the calculated value by SUNEX or EXCAV program is smaller than the observed value by measuring during construction. In result, more careful attention is needed to determine the behavior of the ground. To better analyze the behavior of the ground, more precise finite element method is required.

• Nuclear industry
• /
• v.25 no.12 s.274
• /
• pp.35-43
• /
• 2005

• 대한치과보철학회:학술대회논문집
• /
• 2002.11a
• /
• pp.94-94
• /
• 2002

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.22 no.6
• /
• pp.226-236
• /
• 2021

The purpose of this study was to investigate the effect of social support on suicidal ideation among the elderly at welfare centers through the mediating effect of avoidance coping style. This is a descriptive research survey of 392 elderly people at four elderly welfare centers located in G city. Data were collected from October 21 to November 8, 2019, and analyzed using the IBM SPSS/win 26.0 program by t-test, ANOVA, and the Pearson's correlation coefficient. The mediating effect was analyzed by multiple regression analysis according to Baron and Kenny's 3-step analysis procedure. Social support of the subjects was found to be high with an average score of 5.73±1.23, avoidance coping style with 12.53±3.47 points, and suicidal ideations with 6.21±2.06 points. In the correlation between the variables, suicidal ideations were negatively correlated with social support (r=-.146, p=.004) and avoidance coping style (r=.315, p<.001), and these correlations were statistically significant. There was a positive correlation. The avoidance coping style of the elderly using the welfare centers was found to partially mediate the relationship between social support and suicidal ideation (Z=-.270, p<.001). Therefore, to prevent negative emotions such as suicidal ideations in the elderly, various policies and support programs at the local and government level should be continuously implemented.