• 한국화재소방학회논문지
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• 제16권3호
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• pp.8-11
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• 2002

전기배선계통에 있어서 접속점의 접속 접촉불량과 순간단락 시 발생하는 스파크와 열축적은 절연물의 용착과 탄화현상을 발생하여 전기화재의 주요 원인이 되고 있다. 또한 접속점의 접속·접촉불량과 순간단락 시 발생하는 전류는 일종의 써지(Surge)전류가 되어 통신, 가전제품, 컴퓨터 그리고 각종 측정기기의 소손 및 고장을 일으키며, 특히 접속점의 접속·접촉불량과 순간단락은 다양한 현상을 나타내어 안전점검시 발견이 매우 어려운 실정이다. 따라서, 본 논문에서는 누전차단기(Earth Leakage Breaker)의 보조 제어장치, 즉 전기화재예방 제어장치(Electrical Fire Prevention Control Device)를 개발하여, 상기 접속점의 접속·접촉불량과 순간 단락 시 누전차단기의 동작신뢰성을 제고시켜, 스파크와 접속점의 과열에 의한 전기화재를 예방하고자 한다.

• 컴퓨터교육학회논문지
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• 제14권4호
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• pp.33-41
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• 2011

본 연구는 디지털 교과서를 수용하는데 영향을 미치는 변인들과 그 구조를 규명하고자 수행되었다. 교사들의 혁신성에 근거하여 디지털 교과서의 수용 전략을 수립하기위해서 캐즘 이론을 검토하고, 디지털 교과서 등 교수매체 수용의 의사결정을 설명하는 정보기술수용모형을 본 연구에 적용하였다. 캐즘이론과 정보기술수용 모형을 토대로 조사도구를 제작하였으며, 신뢰도 및 타당도 검증을 거쳐 혁신성, 지각된 유용성, 지각된 사용용이성, 사용의도 간의 인과적 관계 검증을 수행하였다. 구조방정식(SEM)을 사용하여 본 연구의 구조모형을 검증한 결과 지각된 사용용이성은 지각된 유용성에 직접적인 영향을 미쳤고, 사용의도에는 간접적인 영향을 미쳤으며, 지각된 유용성은 사용의도에 직접적인 영향을 미친 것으로 나타났다. 이러한 연구결과는 디지털 교과서 수용을 위한 전략 수립에 구체적인 시사점을 준다. 즉, 디지털 교과서의 일반학교 도입은 보다 신중하게 검토되어야 하며, 인터페이스의 개선과 같은 사용 용이성보다는 디지털교과서의 유용성에 초점을 맞추는 정책적 노력이 필요하다는 것이다.

• 보건교육건강증진학회지
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• 제27권4호
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• pp.141-152
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• 2010

Objectives: This study was conducted to estimate the health-related quality of life using EQ5-D by socio-demographic characteristics and mental health among Seoul citizens for developing health promotion programs. Methods: The study subjects using cluster-stratified sampling method were 1234 adults over 19 years old from 17 dong, S-Ku in Seoul City. A cross-sectional study with face-to-face interview was used to collect data. A questionnaire measuring socio-demographic variables, Symptom Checklist-90-Revised (SCL-90-R) and Euroqol EQ-5D instrument. The Difference on the EQ-5D index among groups were tested with Mann-Whitney U test and Kruskal Wallis test. Results: The mean EQ-5D index for all subjects was 0.946(${\pm}0.105$). The EQ-5D index were significantly different by sex, age, marital status, eduction level and income. The EQ5-D indexes among clinical mental health groups were the lowest scores and significantly different from other groups. Conclusion: The findings suggest that the future intervention of health promotion programs should be carefully designed and tailored by socio-demographic variables. Especially, the mental health programs need to be developed.

• 성인간호학회지
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• 제12권2호
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• pp.278-285
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• 2000

Nausea, vomiting and retching are universal symptoms that affect individuals' state of health and self-care activities of individuals. Accurate measurements of individual symptoms are required to gather more definitive data, and enhance understanding, planning, and implementation of self-care actions. Recently the Rhodes Index of Nausea, Vomiting, and Retching(INVR), a new format of the INV-2(the Rhodes Index of Nausea and Vomiting), was developed to measure the symptoms of nausea, vomiting and retching in an English speaking population. To determine the reliability and validity of the INVR, and the possibility of using the instrument in Korea, the Korean translation of the INVR and the INV-2 were administered to a convenient sample of 105 patients at two University Hospitals in Kwangju, Korea. The Cronbach's alpha to estimate the internal consistency of reliability for INVR was 0.844. Equivalent measures of reliability were conducted to determine the percentage of agreement and the Spearman rank correlation coefficients for responses on the two instruments. The percent agreement was 83% and the correlation coefficient was 0.906 over all. A significant differences between the INVR scores of the patients with and without nausea, vomiting, or retching were seen, which indicated a construct validity. The INVR was found to be more user friendly for the patient and the healthcare providers. As a result, it is suggested that the INVR can provide a scientific base for measuring the symptoms of nausea, vomiting, and retching for nurses to improve patients' care and quality of life.

• 경영정보학연구
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• 제3권2호
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• pp.289-303
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• 2001

최근 인터넷 사용인구의 폭발적인 증가에 발맞추어 인터넷을 이용한 온라인 증권의 시장규모 또한 빠른 속도로 커지고 있다. 그러나 이러한 시장의 팽창에도 불구하고 온라인 증권 서비스에 대한 평가기준이나 평가척도 개발은 아직 시장 성장속도에 휠씬 못 미치는 모습을 보이고 있다. 현재 많은 수의 온라인 증권 사이트들이 운영되고 있으며 정보통신의 발달과 더불어 온라인 증권시장은 향후에도 지속적인 증가세를 띨 것으로 예상된다. 온라인 증권사의 성공여부는 투자자들이 어떻게 이를 이용하고 평가를 내리느냐에 따라 판가름난다. 본 연구는 오프라인 서비스 제공업체에 대한 평가척도인 SERVQUAL과 그 외 기존의 온라인 서비스 평가기준들을 종합하는 한편, 이와 더불어 투자자들을 대상으로 한 실증연구를 통해 온라인 증권 서비스 품질에 대한 평가 측정도구를 개발 제시하고자 한다. 이 척도를 개발하는 과정에서 투자자들이 생각하는 온라인 증권 서비스의 중요 요소들을 밝히며, 나아가 이 척도가 인터넷 서비스, 특히 온라인 증권의 마케팅 전략수립에 어떻게 이용되어야 하는지 역시 논의한다.

• 간호행정학회지
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• 제12권3호
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• pp.454-463
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• 2006

Purpose: This study was designed to identify the factors affecting the nurses' experience of non-reporting adverse incidents in hospital. Methods: This study is a cross-sectional, descriptive survey design and nonrandom, convenience sampling. Study subjects were 392 clinical nurses, who have agreed to be the subject of this research. The measuring instrument of attitudes toward incident reporting was developed by the authors. The questionnaire which consisted of 17 items about worry about appraisal, the belief in improvement, the intention of reporting, and knowledge was measured by 5-point Likert-type scale. The estimate of internal consistency was alpha =.84. Analysis of data was done with use of mean, t-test, ANOVA, logistic regression with SPSS program. Results: Clinical nurses had experience of reporting incident (51.3%), non-reporting incident (76.5%). Statistically, significant differences were found between experiences group and non experience group in intention on reporting, belief on improvement, and worry about appraisal. Logistic regression analysis showed that the significant predictors were caused by report no-fault cases, belief on improvement, worry about appraisal. Conclusion: The result also indicated that, to improve the incident reporting and risk management, it might be necessary to give a belief that it results on improvement and remove concern about punishment through construction of no-blame system.

• 대한간호학회지
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• 제16권3호
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• pp.11-21
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• 1986

The purposes of this study were to clarify whether the health belief model could explain the women's adoption of sterilization and to find the factors which influence the adoption of sterilization. To achieve these purpose, 35 women, who visited the family planning hospital to undergo an surgical operation for sterilization, were selected and named the group of adoption. Also, 36 women, who have the same demographic characteristics as the group of adoption, and have no sterilization among the married women, were selected and named the group of non-adoption. The measuring instruments used in this study were made by the researchers on the basis of the results of the review of the related literatures. The validity of these instruments was examined by one professor majoring in nursing and two family plmanning practioners. The reliability was proven by calculation of Cronbach's α with data of the group of adoption. The data was analyzed by t-test, X²-test, and ANOVA using Computer SAS system. The results were following: 1. Health belief model could be said to explain whether women accept the sterilization or not, because the degrees of susceptibility and severity for future pregnancy and the degree of benefit or adoption of sterilization in the group of ad-option are higher than those of the group of non-adoption. 2. Influence of demographic variables on health belief variables was as follows. With advancing ages, degree of susceptibility increased in the group of adoption, and the higher the number of artificial abortion increased, the higher degree of barrier increased in the group of non-adoption. Suggestions for further studies and application to the nursing practice are as follows 1. If one wants to educate the non-adoption women, one would be better to give such information as to increase the perception of susceptibility, severity and benefit. 2. New instrument to measure the perceived barrier which includes such items as fear on well-ness of the existing children, objection of husband and postoperative complication, is needed. 3. A study to find the change of perception on health belief variables is needed, after education to increase the level of perceived susceptibility and severity on the future pregnancy, and benefit on sterilization is given.

• Journal of Periodontal and Implant Science
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• 제35권1호
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• pp.187-197
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• 2005

The aim of this study was to investigate the influence of peri-implant soft tissue and bone thickness on the early dimensional change of peri-implant soft tissue. Seventy-seven non-submerged implants of 39 patients which had been loaded more than 6 months were selected for the study. Following clinical parameters were measured; bucco-lingual bone width of the alveolar bone for implant placement before implant surgery; distance between implant shoulder and the first bone/implant contact at the surgery; presence of plaque, probing depth, bleeding on probing, width of keratinized mucosa, mucosa thickness, distance between implant shoulder and peri-implant mucosa, crown margin location at follow-up examination. The results showed that distance between implant shoulder and peri-implant mucosa (DIM) was correlated with probing depth and width of keratinized mucosa (p < 0.05). In addition, mucosa thickness was also correlated with probing depth (p<0.05). However, the bone width of alveolar bone and soft tissue thickness were not found to be correlated with DIM. It is important to understand the meaning of peri-implant tissue dimension in relation to dimensional changes of peri-implant soft tissue which designates appearance of implant-supported restorations. Future study is needed to elucidate the significance of the buccal bone thickness and soft tissue thickness with respect to the change of peri-implant soft tissue margin with the use of an instrument capable of measuring buccal bone thickness directly.

• 국제물리치료학회지
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• 제7권1호
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• pp.919-924
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• 2016

In this study, 20 men and women in their 20s were divided into a footboard passive stretching group and a manual passive stretching group. After stretching was applied to the soleus for 5 weeks, a comparative analysis was performed on the range of motion(ROM) of the ankle joint to determine changes in the flexibility of the soleus. Both the footboard stretching group and manual stretching group first performed stretching for 15 sec, followed by a 10-sec break. One set consisted of performing the above process twice consecutively, and each group had to perform five sets in total. A goniometer was used as a measuring instrument. The results of the experiment were analyzed using a nonparametric analysis, Wilcoxon signed rank test, and Mann-Whitney test. SPSS WIN 18.0 was employed for the statistical analysis. In terms of the comparison of the flexibility before and after the experiment according to the different interventions, the application of footboard stretching to the soleus for 5 weeks resulted in $3.2^{\circ}$ right dorsiflexion (p=.009), $6.98^{\circ}$ right plantar flexion(p=.008), $4.14^{\circ}$ left dorsiflexion(p=.005), and $10.97^{\circ}$ left plantar flexion(p=.007), which were all statistically significant increases. The application of manual stretching led to $6.04^{\circ}$ right dorsiflexion(p=.005), $12.14^{\circ}$ right plantar flexion(p=.005), $7.00^{\circ}$ left dorsiflexion (p=.008), and $16.38^{\circ}$ left plantar flexion(p=.005). Therefore, both footboard stretching and manual stretching were effective in enhancing the flexibility of the soleus. However, statistically significant larger increases in the ROM of the ankle joint were observed in the manual stretching group.

• Journal of Astronomy and Space Sciences
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• 제29권4호
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• pp.343-349
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• 2012

The solar proton telescope (SPT) is considered as one of the scientific instruments to be installed in instruments for the study of space storm (ISSS) which is determined for next generation small satellite-1 (NEXTSat-1). The SPT is the instrument that acquires the information on energetic particles, especially the energy and flux of proton, according to the solar activity in the space radiation environment. We performed the simulation to determine the specification of the SPT using geometry and tracking 4 (GEANT4). The simulation was performed in the range of 0.6-1,000 MeV considering that the proton, which is to be detected, corresponds to the high energy region according to the solar activity in the space radiation environment. By using aluminum as a blocking material and adjusting the energy detection range, we determined total 7 channels (0.6~5, 5~10, 10~20, 20~35, 35~52, 52~72, and >72 MeV) for the energy range of SPT. In the SPT, the proton energy was distinguished using linear energy transfer to compare with or discriminate from relativistic electron for the channels P1-P3 which are the range of less than 20 MeV, and above those channels, the energy was determined on the basis of whether silicon semiconductor detector (SSD) signal can pass or not. To determine the optimal channel, we performed the conceptual design of payload which uses the SSD. The designed SPT will improve the understanding on the capture and decline of solar energetic particles at the radiation belt by measuring the energetic proton.