• 한국도서관정보학회지
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• 제50권3호
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• pp.49-69
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• 2019

본 연구는 공공도서관의 자료이용공간 내 장서포화 상태를 측정하고, 이를 해결할 수 있는 방안을 제안하는데 그 목적이 있다. 연구의 수행을 위하여 특정 지방자치단체 한 곳을 선정하여 이 지방자치단체가 운영하는 공공도서관의 도서관별 장서포화상태를 측정하여 장서포화의 상태와 원인을 밝히고자 하였다. 본 연구를 통해 도출한 연구 결과를 토대로 우리나라 공공도서관에서 장서포화도를 측정하여 장서포화에 대한 심각성을 인지하고, 장서포화의 원인을 파악하여 이를 해결해야 한다는 당면과제를 제시하는데 있다.

• 한국도서관정보학회지
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• 제55권1호
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• pp.27-45
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• 2024

충청북도교육청 소속 공공도서관의 장서 소장 및 보존현황, 장서관리의 어려움, 장서 포화에 대한 예측에 대한 조사를 수행하였다. 충청북도교육청 소속 공공도서관은 극심한 장서 포화로 인한 어려움을 겪고 있어 신속한 공동보존자료관의 체계적인 운영 증대 필요성을 절감하고 있었다. 향후 공동보존자료관으로 이관 시 도서 위주 자료 이관이 주를 이룰 것으로 보인다. 단위 도서관에 보존을 위한 시설을 갖추기 어려운 상황으로 희귀서, 특화자료 등 보존가치가 있는 자료는 공동보존자료관으로 이관이 필요하며, 자료보존 관련 정책 및 규정마련이 필요한 상황이며, 특히 공동보존자료관으로 자료 이관 시 단순한 이용률 저하 자료 등에 대한 이관 기준이 필요할 것으로 보인다. 향후 연구에서는 지자체 소속 공공도서관들의 장서 포화 상태도 조사함으로써 충청북도 전체 공공도서관 자료의 공동보존 방안 모색을 논의할 필요가 있을 것이다.

• Nuclear Engineering and Technology
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• 제5권2호
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• pp.94-102
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• 1973

원주상 재결합 영역에 있어서 전리함의 포화특성을 이론적으로 검토하고, 보론 피복 원통형 전리한을 설계, 제작하여 내부에 질소 또는 헬륨을 760mmHg와 380mmHg로 충전시켜서 실험적임 측정을 하였다. 해석적임 방법으로 도출한 collection efficiency의 식은 실험결과와 잘 일치하였다. 이 결과를 이용하면 보론을 피복한 전리함의 포화특성을 실험적인 측정 업이 설계치에 의한 이론적인 계산만으로 예측할 수 있다.

• 성인간호학회지
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• 제21권2호
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• pp.141-154
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• 2009

Purpose: The purpose of this study was to compare the difference of change in oxygen saturation, vital signs and suction time taken for the suctioning during endotracheal suctioning performed with closed suction system and with opened suction system. Methods: Data were collected from 31 adult patients with ventilator treatment who were admitted to a university hospital in Seoul and the collection period was from July 1 to November 15, 2005. Oxygen saturation, heart rate, respiration rate and mean arterial pressure were collected immediately prior to the suctioning intervention, during and 1 and 5 minutes after the suctioning from opened suction system and closed suction system. Results: 1) The difference in oxygen saturation was statistically significant in recovery time for oxygen saturation to return to baseline values after suctioning was significantly rapid on closed suction system (p<.05). 2) The difference in heart rate, respiration rate and mean arterial pressure was statistically insignificant 3) The suction time was shorter in closed suction system. Conclusion: Closed suction system is more efficient, as compared with the open suction system in the ventilator treatment.

• 여성건강간호학회지
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• 제15권1호
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• pp.32-42
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• 2009

Purpose: This study was done to examine the effects of abdominal breathing on VAS-Anxiety (VAS-A), blood pressure, peripheral skin temperature and saturation oxygen in pregnant women in preterm labor. Method: The study design was a matched control group interrupted time series. Forty-six women matched to gestational age were assigned to either the experimental group (26) or control group (20). Data were collected between March 2007 and May 2008. For the experimental treatment the women performed abdominal breathing 30 times, which took 5 minutes, and did one set of 5-minute abdominal breathing daily for three days. Data collection was done before and after the abdominal breathing to measure VAS-A, blood pressure, peripheral skin temperature and oxygen saturation. Descriptive, $X^2$, Mann-Whitney U tests were used to analyze the data with the SPSS/PC+Win 15.0 program. Result: For the experimental group there were significant decreases in VAS-A (Z=-4.37, p=.00), systolic blood pressure (Z=-3.38, p=.00), and an increase in skin temperature (Z=-4.50, p=.00) and oxygen saturation (Z=-3.66, p=.00). Conclusion: These findings suggest that abdominal breathing in pregnant women in preterm labor results in decreases in anxiety(VAS-A) including biological evidences such as systolic blood pressure, and increases in peripheral skin temperature and oxygen saturation. Further longitudinal study is needed on the lasting effects and obstetric and neonatal outcomes following abdominal breathing.

• 대한간호학회지
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• 제38권5호
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• pp.720-729
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• 2008

Purpose: This study investigated the preemptive analgesic effects of Morphine and Ketorolac on postoperative pain, cortisol, $O_2$ saturation and heart rate for the first 24 hr after abdominal surgery. Methods: Data collection was performed from April 1 to September 30, 2006. Forty patients undergoing a gastrectomy under general anesthesia were randomly allocated to the experimental or control group. The experimental group (20 patients) was administered Morphine and Ketorolac approximately 1 hr prior to skin incision, but the control group (20 patients) was administered Morphine and Ketorolac at peritoneum closure through a patient-controlled analgesia (PCA) pump. Postoperative pain, blood pressure, heart rate, cortisol, $O_2$ saturation, frequency of the PCA button pressed and doses of additional analgesics were observed through post operative 24 hr. Collected data was analyzed using t-test, $X^2$ test, repeated measures ANOVA, and Bonferroni methods. Results: Postoperative pain, cortisol, the frequency of PCA button pressed, and dose of additional analgesics of the experimental group were significantly lower than the control group. There were no statistical differences in blood pressure, heart rate and $O_2$ saturation between the experimental group and control group. Conclusions: We concluded that administration of morphine and ketorolac at 1 hr prior to skin incision resulted in decreasing postoperative pain, but it didn't affect blood pressure, heart rate or $O_2$ saturation for 24 hr after abdominal surgery.

• Design & Manufacturing
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• 제13권1호
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• pp.19-24
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• 2019

Currently, the world is paying keen attention to the production of renewable energy along with environmental issues, and the share of renewable energy in the world is rising above that of nuclear power. Especially when Korea, which is heavily dependent on foreign countries, needs to reconsider its national competitiveness due to the recent high oil prices, the government's energy policy is to develop and use renewable energy that replaces fossil fuels. In particular, solar energy, the most actively studied and commercialized field of renewable energy, is the main research for solar energy and is commercialized and used. However, the efficiency of solar energy has already reached saturation. Studies are also focusing on increasing the reflectivity of solar energy to increase efficiency. Therefore, this paper proposes a solar collection system that can utilize solar energy rather than solar energy. The proposed solar heat collection system uses solar tracking systems to effectively collect solar energy, particularly those that can be easily produced using single-modular reflectors and have price competitiveness. In addition, temperature measurement experiments with temperature measuring sensors were conducted to ensure reliability in order to verify the results interpreted.

• 한국의료질향상학회지
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• 제12권1호
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• pp.92-102
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• 2006

Background : Most hospitalized children will experience physical pain as well as psychological distress. Painful procedure can increase anxiety and fear of pediatric patients and their parents who do not have understanding logical of their disease and hospitalization. This study attempted to identify pain reduction in related to therapeutic intervention by age and environmental improvement. Methods : A total of 194 hospitalized children and their parents were investigated. Data collection period was 3 months from March to May 2004. Four instruments were used to collect the data : Faces Pain Rating Scale(FPRS), Heart rate, Oxygen saturation and Pain behavioral check list. The data were analyzed by a SPSS program and tested x2-test, t-test, ANCOVA. Results : 1. Age from 0 to 3, the Heart rate, FPRS, Oxygen saturation and Pain behavioral check list were significantly different in theraputic intervention group when compare to control group. 2. Age from 4 to 6, FPRS, Oxygen saturation and Pain behavioral check list were significantly different in theraputic intervention group when compare to control group. But the heart rate were not significantly different when compare to control group. 3. Age from 7 to 9, FPRS and Pain behavioral check list were significantly lower in therapeutic intervention group when compare to control group but Heart rate and Oxygen saturation were not significantly different when compare to control group. Conclusion : The results of this study concludes that most children experience acute pain during IV therapy and it can be reduced by age specific therapeutic intervention and by change of surrounding environment.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제27권3호
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• pp.168-175
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• 2024

Purpose: The presence of alcoholic stool in biliary atresia (BA) patients is the basis of a stool color card (SCC), a screening tool that has led to more patients receiving Kasai portoenterostomy earlier. This study aimed to evaluate the color image processing of stool images captured using smartphones. We propose that measuring digital color parameters is a more objective method for identifying BA stools and may improve the sensitivity of BA screening. Methods: A prospective study was conducted in five hospitals in Thailand between October 1, 2020, and December 31, 2021. Stools from infants presenting with jaundice, acholic stool, or dark-colored urine were photographed. Digital image color analysis was performed, and software was developed based on the color on the original SCC. Sensitivity and specificity for predicting BA stools were compared between the SCC and the software. Results: Of 33 infants eligible for data collection, 19 were diagnosed with BA. Saturation and blue were two potential digital color parameters used to differentiate BA stools. The receiver operating characteristic curve was used to determine the optimum cutoff point of both values, and when saturation ≤56 or blue ≥61 was set as a threshold for detecting BA stool, high accuracy was achieved at 81.8% and 78.8%, respectively. Conclusion: Digital image processing is a promising technology. With appropriate cutoff values of saturation in hue, saturation, value and blue in red, green, blue color models, BA stools can be identified, and equivocal-colored stools of non-BA patients can be differentiated with acceptable accuracy in infants presenting with jaundice.

• 한국전자통신학회논문지
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• 제11권4호
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• pp.411-420
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• 2016

석탄과 석유를 대신할 새로운 대체 에너지의 연구 및 개발은 지난 수년간 계속해서 연구되고 있다. 최근엔 유한 에너지 가격 상승으로 인하여 무공해 신재생 에너지의 관심이 증가하고 있다. 특히 기존에 활발히 연구되고 상용화된 신재생 에너지 분야 중 태양에너지는 태양광 에너지에 주된 연구가 이루어져 있다. 그러나 태양광 에너지의 효율성은 이미 포화상태에 도달하였다. 이에 본 논문에서는 태양광이 아닌 태양열 에너지를 활용할 수 있는 태양광 추적형 파라볼릭 집열장치를 제안한다. 제안하는 태양열 집열장치는 효과적으로 태양열을 집열하기 위하여 파라볼릭 형태로 제안하고, 계절 및 시기에 따른 태양의 위치변화를 감지할 수 있도록 5축 센서 방식의 태양광 추적형 트래킹 기술을 결합한 태양열 집열장치의 프로토타입을 제안한다. 또한 집열장치의 효율적인 관리를 위하여 관리자 인터페이스를 설계 및 구현한다.