• 생물정신의학
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• 제11권2호
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• pp.155-164
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• 2004

Objective:The present study examined the association between basic neurocognitive functions and emotional recognition in chronic schizophrenia. Furthermore, to Investigate cognitive variable related to emotion recognition in Schizophrenia. Methods:Forty eight patients from the Yongin Psychiatric Rehabilitation Center were evaluated for neurocognitive function, and Emotional Recognition Test which has four subscales finding emotional clue, discriminating emotions, understanding emotional context and emotional capacity. Measures of neurocognitive functioning were selected based on hypothesized relationships to perception of emotion. These measures included:1) Letter Number Sequencing Test, a measure of working memory;2) Word Fluency and Block Design, a measure of executive function;3) Hopkins Verbal Learning Test-Korean version, a measure of verbal memory;4) Digit Span, a measure of immediate memory;5) Span of Apprehension Task, a measure of early visual processing, visual scanning;6) Continuous Performance Test, a measure of sustained attention functioning. Correlation analyses between specific neurocognitive measures and emotional recognition test were made. To examine the degree to which neurocognitive performance predicting emotional recognition, hierarchical regression analyses were also made. Results:Working memory, and verbal memory were closely related with emotional discrimination. Working memory, Span of Apprehension and Digit Span were closely related with contextual recognition. Among cognitive measures, Span of Apprehension, Working memory, Digit Span were most important variables in predicting emotional capacity. Conclusion:These results are relevant considering that emotional information processing depends, in part, on the abilities to scan the context and to use immediate working memory. These results indicated that mul- tifaceted cognitive training program added with Emotional Recognition Task(Cognitive Behavioral Rehabilitation Therapy added with Emotional Management Program) are promising.

• 농업과학연구
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• 제50권4호
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• pp.817-828
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• 2023

Deteriorating soil physical properties and increasing soil pathogens due to the continuous cultivation of field crops are the leading causes of productivity deterioration. Crop rotation, soil heat treatment, and chemical control are used as pest control methods; however, each has limitations in wide application to domestic agriculture. In particular, chemical control requires improvement due to direct exposure to sterilizing solution, odor, and high-intensity work. To improve the overall domestic agricultural environment, the problems of time and cost, such as field maintenance and cultivation scale, must be addressed; therefore, mechanization technology for chemical control must be secured to derive improvement effects in a short period. Most related studies are focused on the control effect of the DMDS (dimethyl disulfide) sterilizer, and research on the performance of the sterilization spray device has been conducted after its introduction in Korea, but research on the corrosion suitability of the material is lacking. This study conducted a corrosion test to secure the corrosion resistance of a soil sterilizer injection pump, and a mechanical failure mode by corrosion by the material was established. The corrosion test comprised operation and neglect tests in which the sterilizing solution was circulated in the pump and remained in the pump, respectively. As a result of the corrosion test, damage occurred due to the weakening of the mechanical strength of the graphite material, and corrosion resistance to aluminum, stainless steel, fluororubber, and PPS (polyphenylene sulfide) materials was confirmed.

• 한국수소및신에너지학회논문집
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• 제28권4호
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• pp.377-383
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• 2017

This paper presents the performance characteristics of a 1 kW solid oxide fuel cell (SOFC) stack under various internal reforming and fuel utilization conditions. The Research Institute of Industrial Science & Technology (RIST) developed the 9-cell stack using a $20{\times}20cm^2$ anode supported planar cell with an active area of $324cm^2$. In this work, current-voltage characteristic test, fuel utilization test, continuous operation, and internal reforming test were carried out sequentially for 765 hours at a furnace temperature of $700^{\circ}C$. The influence of fuel utilization and internal reforming on the stack performance was analyzed. When the 1 kW stack was tested at a current of 145.8 A with a corresponding fuel utilization of 50-70% (internal reforming of 50%) and air utilization of 27%, the stack power was approximately 1.062-1.079 kW. Under continuous operation conditions, performance degradation rate was 2.16%/kh for 664 hours. The internal reforming characteristics of the stack were measured at a current of 145.8. A with a corresponding fuel utilization of 60-75%(internal reforming of 50-80%) and air utilization of 27%. As fuel utilization and internal reforming ratio increased, the stack power was decreased. The stack power change due to the internal reforming ratio difference was decreased with increasing fuel utilization.

• 여성건강간호학회지
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• 제10권2호
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• pp.99-108
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• 2004

Purpose: This study was to serve the sexual health education of the hysterectomy patients and to get the basic data of the nursing intervention on sexual health education. Sexual health education for the patients is an independent function as well as a professional responsibility of nurses. Method: The subjects were composed of 108 post-op patients who had undergone doing a hysterectomy 5 to 10 days previously and 101 nurses at OBGY hospitals. For data analysis, the study executed a frequency, mean, standard deviation, t-test, ANOVA, Duncan Multiple Range test and Spearman's rho correlation coefficient, in accordance with the purpose of the study using SPSS Win 10.0. Result: Mean score of the needs degree of sexual health education was 3.30 point. The need for education was highest in the sexual health promotion with education related to sexual interaction the lowest. Mean score of the nurses' teaching performance degree of sexual health education was 1.80 point. The nurses' teaching performance was highest in the sexual health promotion. There exist significant correlations between the degree of patients' educational needs and the degree of nurses' teaching performance on physiosexual(p=-.667, p<.05), psychosexual(p=.762, p<.05), sexual interaction(p=.667, p<.05) respectively. There was no significant difference on sexual health promotion(p=.359, p>.05). Conclusion: The degree of sexual health education needs of hysterectomy patients was very high. Therefore, continuous nursing education program should be developed and provided for the promotion of the performance of sexual health education as the nursing professional role.

• 한국건설순환자원학회논문집
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• 제11권4호
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• pp.552-559
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• 2023

본 연구는 팽창성 및 팽윤성 혼화제를 혼입한 고로슬래그 콘크리트의 균열 저감 성능 평가를 목적으로 한다. 기본 성능 실험으로 고로슬래그미분말(BFS), 칼슘설포알루미네이트(CSA), 벤토나이트, 하이드록시프로필 메틸셀룰로오스(HPMC) 등 다양한 혼입물을 사용하여 수행한 결과 벤토나이트가 HPMC에 비해 우수한 성능을 나타내었다. 이후, 혼입률에 따른 균열 및 건조수축 평가를 위해 MOCK-UP 테스트를 실시하였다. 그 결과, 벤토나이트와 소량의 인산칼슘을 첨가하였을 때 건조수축이 감소되어 균열이 저감 되었다. 특히, 30 %의 BFS, 1 %의 벤토나이트, 1 %의 인산칼슘으로 구성된 시멘트 혼합물이 균열이 없는 최적의 성능을 보였다. BFS 콘크리트가 지속적인 팽창 활동에 의하여 수축을 보상하는데 기여할 것으로 판단되며 현장 적용에 사용될 수 있을 것이다.

• 콘크리트학회논문집
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• 제16권5호
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• pp.659-666
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• 2004

본 연구에서는 최근 국내에서 신기술 등으로 인증되어 활용되고 있는 보수재료 공법을 적용한 폭로시험체를 제작한 후, 해양환경 및 일반대기환경 하에서 장기폭로실험에 의한 정량적 폭로실험데이터를 확보함으로서 향후 성능 저하된 철근콘크리트 구조물의 보수재료 공법 성능평가 방법 및 품질관리기준 확립을 위한 기초자료를 제시하고자 하였다. 해양 및 일반대기환경 하에서 폭로재령 18개월까지 폭로실험을 실시한 결과 일부 보수공법에 있어서 표면피복재 및 단면복구재의 미세균열 부풀음, 박리현상과 보수경계부위의 균열 및 보수부위와 비보수부위의 전위차가 다소 발생하고 있는 것으로 나타났으며 향후 폭로시험체의 지속적인 평가 및 파괴에 의한 상세평가를 통하여 정량적인 폭로실험 데이터를 확보함으로서 보수재료 공법의 성능평가방법 및 품질관리기준 확립을 위한 기초 자료를 제시할 수 있을 것으로 판단된다.

• 국제초고층학회논문집
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• 제12권1호
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• pp.93-105
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• 2023

Seismic isolation and vibration control techniques have been developed and put into practical use by challenging researchers and engineers worldwide since the latter half of the 20th century, and after more than 40 years, they are now used in thousands of buildings, private residences, highways in many seismic areas in the world. Seismic isolation and vibration control structures can keep the structures undamaged even in a major earthquake and realize continuous occupancy. This performance has come to be recognized not only by engineers but also by ordinary people, becoming indispensable for the formation of a resilient society. However, the dynamic characteristics of seismically isolated bearings, the key elements, are highly dependent on the size effect and rate-of-loading, especially under extreme loading conditions. Therefore, confirming the actual properties and performance of these bearings with full-scale specimens under prescribed dynamic loading protocols is essential. The number of testing facilities with such capacity is still limited and even though the existing labs in the US, China, Taiwan, Italy, etc. are conducting these tests, their dynamic loading test setups are subjected to friction generated by the large vertical loads and inertial force of the heavy table which affect the accuracy of measured forces. To solve this problem, the authors have proposed a direct reaction force measuring system that can eliminate the effects of friction and inertia forces, and a seismic isolation testing facility with the proposed system (E-isolation) will be completed on March 2023 in Japan. This test facility is designed to conduct not only dynamic loading tests of seismic isolation bearings and dampers but also to perform hybrid simulations of seismically isolated structures. In this paper, design details and the realization of this system into an actual dynamic testing facility are presented and the outcomes are discussed.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2006년도 춘계학술논문 발표대회 제6권1호
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• pp.167-171
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• 2006

In this study, for the establishment of the performance evaluation methods of repair material and method for reinforced concrete structure and the quality control standards of durability recovery method, the quantitative exposure data by exposure experiment under the coastal and normal atmosphere environment is accumulated and analyzed. Investigating and evaluating the result of exposure experiment during 30 months of exposure age under the coastal and normal atmosphere environment, carbonation depth and chlorideion penetration depth very little penetrated than cover depth. It seems reasonable to conclude that main cause of corrosion of reinforcing bar are inner chloride-ion and macro cell from the result of corrosion area and corrosion velocity. Accordingly, it is considered that fundamental data on the performance evaluation and quality control standards of repair material and method could be presented through continuous exposure test in the future.

• 간호행정학회지
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• 제12권2호
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• pp.189-195
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• 2006

Purpose: This study was to identify nursing interventions which were perceived highly in the importance and performance of nursing interventions by nurses in long-term care facilities for elderly. Method: Data was collected from nurses working in long-term care facilities for elderly over 2 years who participated in continuous education by Korea Association of Senior Citizens Welfare Institution. Data was analyzed using mean and paired t-test to compare difference between the importance and performance of each nursing intervention. Results: Among 264 nursing intervention, 49 nursing interventions were considered highly important and performed very often by nurses. Especially, 11 nursing interventions had significant difference between the importance and the performance, which meant that nurses perceived them as the most important and they were not implemented often as much as that by nurses. Conclusion: The results of this study revealed that what kinds of the nursing interventions were perceived highly important and performed very often by nurses in long-term care facilities for elderly. These nursing interventions can be utilized in the development of standardized nursing intervention classification to be used for the long-term care facilities for elderly.

• 유통과학연구
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• 제20권5호
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• pp.1-11
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• 2022

Purpose: This study attemptsto investigate the moderating effects of environmental turbulence (ET) between learning orientation (LO) and SMEs' performance. Research design, data, and Methodology: To gain insights and provide implications for manufacturing SMEs in Pakistan, this study adopted simple random sampling to collect 379 valid responses. Data were collected through a self-administrative questionnaire from manufacturing SMEs owners/managers. Partial least squares of structural equation modeling have been used to test research hypotheses by using SmartPLS® 3.0 software. Results: The study's primary finding is that LO has a significantly positive effect on SMEs' performance and this relationship is strengthened under the moderating influence of environmental turbulence (ET). Conclusion: Environmental turbulence (ET) enables SMEs to focus on learning capability to get a more competitive advantage. Moreover, SMEs owner/managers ought to emphasize continuous learning that accentuates the capability to compete with environmental changes. Findings support notifying Pakistan's Small and Medium Enterprise Development Authority (SMEDA) in dealings with Manufacturing SMEs in terms of improving their internal capabilities. This research contributes to the literature as it provides a more detailed and in-depth explanation of distribution management-related issues faced by SMEs. This research carries a significant influence on literature and relevant Resource-based view and contingency theories.