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효과적인 자연 냉방 계획 및 지속가능한 친환경 공동주택 설계를 위한 지역별 기후 분석
장보윤,이윤규,신철웅 한국냄새환경학회 2015 실내환경 및 냄새 학회지 Vol.14 No.1
<P> The world energy crisis and the universal interest in comfort buildings are not only leading the thriving Passive House and Nearly Zero Energy House strategies but also encouraging the development of higher performance HVAC systems and alternative energy sources for occupants and sensible energy consumption. However, household appliances have been used to control the indoor environment such as humidifiers, dehumidifiers and air cleaners are became popular, occupants have come to rely on these appliances heavily and are overusing energy on indoor environment manage easily and quickly. In addition, the intense air tightness of current residential buildings makes possible to reduce harmful outdoor conditions but has made the indoor environment isolated from the outdoors. As well, climate change due to global warming and the urban heat island effect have broken the natural bond between humans and the environment. As high-rise, air tight buildings have become the most common residential building type in South Korea, occupants in high-rise residential buildings inevitably lose the chances to have the natural environment by the change of season to feel the warm sunlights of spring and the dry leafy smell on an autumn breeze. In this sense, regional weather data was analysed to establish comfort residential building strategies that commune with nature and overcome seasonal climate hindrances. </P>
장보윤,정노을,( Rajesh Cheruku ),안광순,김재홍 한국공업화학회 2015 한국공업화학회 연구논문 초록집 Vol.2015 No.1
The measurement of electron diffusion coefficients and electron lifetimes of dye sensitized solar cells (DSSCs) is essentially required to characterize the cell performance, further investigate high performance solar cells. In this research, stepped light induced transient measurements (SLIM) of photocurrent and voltage is conducted to estimate the electron diffusion coefficients and electron lifetimes of DSSCs. SLIM methods is relatively simple experiment, which can simplify the optical setup and reduce measuring time. In this method, the light having different laser intensity is irradiated to the solar cells with using chopper for lighting on/off.
위암 장기생존자의 주관적 건강상태, 정신건강 및 암스티그마의 관계
장보윤,박정윤 대한종양간호학회 2018 Asian Oncology Nursing Vol.18 No.2
Purpose: The aim of this study was to explore the relationship among subjective health status, mental health, and cancer stigma of long-term cancer survivors after gastric surgery. Methods: In this cross-sectional study, 135 cancer survivors visiting the family medicine clinic of a tertiary hospital were surveyed. Data were collected from March 1 to May 31, 2017. Using the questionnaire, subjective health status, mental health, and cancer stigma were measured and analyzed. Results: The mean scores for subjective health status, stress, and cancer stigma were 80.16, 2.97 and 1.59 respectively. Anxiety and depression rates were 37.1% and 28.9% respectively. Cancer stigma was negatively correlated with subjective health status (r=-.18, p=.036) and positive association with anxiety (r=.23, p=.009), depression (r=.20, p=.023), and stress (r=.21, p=.017). Conclusion: In this study, long-term cancer survivors’ subjective health status, mental health, and cancer stigma were low and these variables were significantly associated. In order to improve the quality of life of long-term gastric cancer survivors, it is necessary to actively evaluate anxiety, depression, stress, and cancer stigma. The appropriate psychosocial care interventions developed through repeated research of survivors of long-term cancer should be continued.
복합생약 HO-Series의 숙취개선 임상적 유용성 평가
장보윤,배진혜,김다은,김대성,조형권,김성연 한국생약학회 2020 생약학회지 Vol.51 No.4
The purpose of this study is to investigate the hangover relieving effect of HO-series. HO-S1 is an herbal mixture, which consists of extracts from Flower of Pueraria lobata Ohwi, Glycyrrhiza glabra Linné, Fruit of Lycium chinense Miller, Poria cocos Wolf, Acanthopanax sessiliflorum Seeman, Scutellaria baicalensis Georgi, Atractylodes lancea De Candlle and Zingiber officinale Roscoe. HO-S2 is a candidate that has been performed to ultra filtration based on HO-S1. HO-S3 is a mixture of amino acids and vitamins based on HO-S2. HO-01 is the final beverage base produced based on HO-S3. The antioxidant activity of HO-series was similar to that of vitamin C or trolox. The production of t-BHP induced reactive oxygen species(ROS) was significantly blocked in the presence of HO-series. In vivo study, AUC of alcohol and acetaldehyde concentrations in HO-S2 and HO-S3 treated groups significantly decreased. Hepatic alcohol dehydrogenase(ADH) and acetaldehyde dehydrogenase(ALDH) activity were significantly higher in HO-S2 and HO-S3 treated groups. And 2E1 activity and glutathione were significantly elevated, while the malondialdehyde level was not significantly in liver tissue. After alcohol exposure, the sensitivity scores of blood alcohol and acetaldehyde concentration and hangover symptoms were significantly decreased in the HO-01 intake group compared with the non-intake group. ALDH activity was significantly increased in the HO-01 intake group. HO-series have antioxidant activity and a protective effect from ROS. HO-S2, HO-S3 and HO-01 are potentially highly beneficial in relieving hangover, as it scavenges reactive free radicals and boosts the endogenous antioxidant system.
경력정체 및 분배공정성이 간호사 이직의도에 미치는 영향 -주도성의 조절효과를 중심으로-
장보윤,김광점,박오원 보건의료산업학회 2019 보건의료산업학회지 Vol.13 No.4
Objectives: This study analyzed the influence of the career plateau phenomenon and distributive justice among hospital nurses on their turnover intention and the moderating effect of proactivity on these correlations. Methods: Survey data from 459 out of 500 hospital nurses at 9 hospitals were collected and used for analysis. SPSS 24.0 was used for conducting regression, validity, and reliability analyses. Results: Career plateau was positively related to turnover intention, whereas distributive justice was negatively related to turnover intention. Proactivity strengthened the positive influence of career plateau on turnover intention. By contrast, proactivity alleviated the negative relation between distributive justice and turnover intention. Conclusions: This study empirically confirmed that career plateau and distributive justice are important antecedent factors of the turnover intention of hospital nurses. Proactivity played a key moderating role between these antecedent factors and turnover intention. Theoretical and practical implications of this study were also discussed.
장보윤,오보람,손동환,김성연 한국생약학회 2008 생약학회지 Vol.39 No.4
Acute toxicity of standardized extract of Salvia miltiorrhiza Bunge was examined using male and female ICR mice. Mice were treated with standardized extract the intragastrically at 5 mg/kg, 50 mg/kg, 500 mg/kg or 2,000 mg/kg and observed for two weeks. At the doses used, no mortality or abnormal clinical signs in animals were shown during at the observation period. Also there was no difference in net body weight gain, gross pathological findings at the terminal sacrifice among the groups mice treated with different doses of the test substance. The results suggested that acute oral toxicity of standardized extract of S. miltiorrhiza in mice is very low at the conditions employed in this study.
장보윤,김선범,이미경,김성연 한국생약학회 2012 생약학회지 Vol.43 No.2
Acute toxicity on the water extract of Mori Fructus was examined in male and female mice. The water extract of Mori Fructus was orally administered at a dose of 5 mg/kg, 50 mg/kg, 300 mg/kg and 2,000 mg/kg and had been observed for two weeks. No mortality and abnormal clinical signs were shown for the observation period. At the terminal sacrifice, there were no difference in net body weight gain, organ weight and gross pathological findings among the groups treated with different doses of the water extract of Mori Fructus. The results suggested that under the condition employed in this study LD_50would be more than 2,000 mg/kg. All the data obtained the experiments lead to the water extract of Mori Fructus should have very low acute toxicity.