• 의료ㆍ복지 건축 : 한국의료복지건축학회 논문집
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• 제12권3호
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• pp.27-34
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• 2006

Planning for the space of the Media Medical Department requires the details about the efficiency of the equipment and the operation in professional sector. For that, as designing, it is necessary to keep communicating with the experts on the technology and the officials from the company producing the equipment. One of the common concerns is not only how to insure enough room for the future extension and the upgrade of the equipment, as concerning the scale of the hospital, but the plan to cover movie cameras. As technology has been developed, despite the fact that machinery tend to be small, it can be possible to require continuously about the concerns of the scale because the camera taking body-picture tend to be much bigger and more complicated than before. Currently used diagnostic media techniques are divided by the method and the feature of the equipment such as Diagnostic X-ray, Ultrasound, CT, MRI, Angiography. The general and special photographing units which are used more than the other diagnostic parts, must be planned not for experiencing any inconvenience and unnecessary risks for the patients and must accept technical requirements. Also, it must be designed not to be seen as a clinic zone, as concerning the psychological stability of the patients. However, study of the general and special photographing units among the domestic general hospitals is insufficient. Also, as there is shortage of the material considering the development of the equipment, when planning, it's involving a lot of difficulties. Thus, this study has got a purpose on giving the basic material which is essential for further study, as suggesting the planning guidelines and the alternative plans for the general and special photographing units in a general hospital.

• 한국산학기술학회논문지
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• 제10권1호
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• pp.6-11
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• 2009

본 논문에서는, 청정지역내에서 다수의 유리 기판을 적재하여 반송하는 롤러 컨베이어 시스템에서, 롤러와 카세트 사이의 기계적 마찰로 인해 발생하는 오염입자에 의한 유리 기판의 오염여부를 판단하기 위해, 시스템 내부의 유동장을 전산유체역학 기법을 통해 해석하였다. 수치해석 결과 일정 속도로 이동하는 카세트 하부에 큰 와류가 생성되는 것을 확인하였다. 그러나 이 와류는 후면에서 유입되는 강한 기류와, 상부 FFU에서 공급되어 하부로 배기되는 기류로 인해, 카세트의 하부 영역에만 갇히게 되는 것으로 나타났다. 따라서 카세트와 롤러 사이의 기계적 마찰로 인해 오염입자가 발생하여도 상부로 이동할 수 없어 유리 기판의 오염 가능성은 낮았다. 또한 이동속도가 빨라짐에 따라 유리 평판 사이의 공기 유동의 방향이 평판의 점성 전단력에 의해 역방향으로 바뀌게 됨을 확인하였다.

• Journal of Korean Neurosurgical Society
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• 제53권1호
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• pp.39-42
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• 2013

Objective : Obtaining real-time image is essential for neurosurgeons to minimize invasion of normal brain tissue and to prompt diagnosis of intracranial event. The aim of this study was to report our three-year experience with a mobile computed tomography (mCT) for intraoperative and bedside scanning. Methods : A total of 357 mCT (297 patients) scans from January 2009 to December 2011 in single institution were reviewed. After excluding postoperative routine follow-up, 202 mCT were included for analysis. Their medical records such as diagnosis, clinical application, impact on decision making, times, image quality and radiologic findings were assessed. Results : Two-hundred-two mCT scans were performed in the operation room (n=192, 95%) or intensive care unit (ICU) (n=10, 5%). Regarding intraoperative images, extent of resection of tumor (n=55, 27.2%), degree of hematoma removal (n=42, 20.8%), confirmation of catheter placement (n=91, 45.0%) and monitoring unexpected complications (n=4, 2.0%) were evaluated. A total of 14 additional procedures were introduced after confirmation of residual tumor (n=7, 50%), hematoma (n=2, 14.3%), malpositioned catheter (n=3, 21.4%) and newly developed intracranial events (n=2, 14.3%). Every image was obtained within 15 minutes and image quality was sufficient for interpretation. Conclusion : mCT is feasible for prompt intraoperative and ICU monitoring with enhanced diagnostic certainty, safety and efficiency.

• 중환자간호학회지
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• 제11권2호
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• pp.75-85
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• 2018

Purpose : The purpose of this study was to examine the possible direction of critical care nursing research in the future by analyzing the trends of recent Korean studies. Method : Using a database search, we selected 263 articles on critical care nursing that were published in Korean journals between 2008 and 2017. Then, we conducted an integrative review of the contents of the selected articles and analyzed the English abstracts using the relevant packages and functions of the R program. Results : The number of studies concerning critical care nursing has increased over the 10-year period, and the specific topic of each study has diversified according to the time at which it was conducted. In terms of quality, the majority of the research was published in high-level academic journals. The key words regularly studied over the past decade were: knowledge, delirium, education, restraint, stress, and infection. Studies related to vancomycin-resistant enterococci infection, compliance, and standards have decreased, while studies related to death, communication, and safety have increased. Conclusion : Randomized controlled trials and protocol research for evidence-based critical care need to be conducted, as does research on family involvement. The key word analysis of unstructured text used in this study is a relatively new method; it is suggested that this method be applied to various critical care nursing research and develop it methodologically.

• Asian-Australasian Journal of Animal Sciences
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• 제13권7호
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• pp.980-985
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• 2000

Influences of Japanese green tea powder (GTP) supplementation to commercial diet on laying performance and egg quality were studied by using 60 laying hens. The experimental diet with or without 0.6% GTP was given ad libitum to the birds during the period from 6 to 71 weeks of age. The birds started egg production from 21 wk of age regardless GTP feeding. Body weight, feed intake, egg weight tended to decrease with GTP supplementation, while egg production rate tended to increase. Haugh unit score was significantly increased with GTP, which accompanied with the increased albumen height. These were observed almost throughout the laying period over 50 wk. Gel proportion in thick albumen was decreased as storage time is prolonged, then higher values of the gel proportion were recorded in the eggs from GTP group. Thick albumen of the eggs from GTP-fed layers had more carbohydrate than that from control layers. All these indicate physical stability of thick albumen in the eggs from GTP group. Thiobarbituric acid content of egg yolk tended to remain lower in the eggs from GTP group during 5-10 days of storage at room temperature. Levels of egg yolk cholesterol and yolk lipid were significantly reduced by GTP feeding. There were no significant differences in eggshell weight, shell thickness and shell strength between the two groups. Thyroid gland and liver from hens slaughtered at 71 wk of age did not differ in weight irrespective of GTP feeding. The present results suggest that GTP could modify components of edible part of egg, leading to the characteristics favourable to consumers such as high durability of thick albumen and less cholesterol in yolk, without altering general performance of the layers throughout this year round experiment.

• 성인간호학회지
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• 제27권3호
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• pp.347-357
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• 2015

Purpose: This study was conducted to assess the prevalence rate of, and the risk factors for pressure ulcers in critical patients at the time of intensive care unit (ICU) admission. Methods: We reviewed the electronic medical records of 2,107 patients who were admitted to the intensive care units in D university hospital between January 1 and December 31, 2012. The collected date were analyzed by ${\chi}^2$-test, t-test, and multi-variate logistic regression with forward stepwise selection using the SPSS program version 21. Results: The prevalence rate of pressure ulcers at the ICU admission was 23.7%. Risk factors significantly affecting pressure ulcers carrying were the age of 80 years or older (OR=3.70, 95% CI: 1.80~7.60), body weight less than 50 kg (OR=2.82, 95% CI: 1.74~4.56), sedated consciousness (OR=6.10, 95% CI: 3.57~10.40), use of ventilator (OR=1.60, 95% CI: 1.02~2.49), use of vasopressors (OR=1.53, 95% CI: 1.09~2.14), ICU admission via operation room (OR=0.49, 95% CI: 0.29~0.85), and hospital admission from nursing homes (OR=13.65, 95% CI: 3.02~61.72). Conclusion: The findings of this study suggested that the prevention efforts for pressure ulcers should be given in prior to ICU admission. Further research is necessary for developing nursing interventions for preventing pressure ulcers in the pre-ICU stage.

• 성인간호학회지
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• 제12권4호
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• pp.546-559
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• 2000

The purpose of this study was to examine the effect of preceptorship on On the Job Training of new nurses. The research design was a retrospective survey and one group pre-post test design. The subjects were 49 entry nurses and 49 preceptors. The data were collected from Feburary 1, 1998 to December 1, 1998. One questionnair applied in this study consisted of general characteristics, the responses of new entry nurses and their preceptors and their qualities. The other questionnair consisted of job satisfaction of new entry nurses and preceptors and their competencies. The data were analyzed for frequencies, mean score, standard deviation, t-test, and ANOVA. The results of the study were as follows: 1) Preceptees's responses were that the nurses' affiliation of unit, cooperation of other nurses, and competencies of nursing skills improved after OJT applied preceptorship. 2) Preceptors's answers were that preceptorship had a positive effect on their continuing education. 3) While preceptees's job satisfaction scores were high in interaction, administration, and organization, they were low in autonomy and pay. 4) Pre-competency scores were the same as post-competency scores. 5) After preceptorship, preceptors responded that their nursing skill & communication competency increased, but their nursing administration competency decreased. 6) Finally, preceptorship's other effects were as follows: (1) Checklists for preceptee education at the nursing unit were developed separately. (2) It was proved that 'preceptor interview note' was effective on manage preceptorship. (3) We obtained duty overlap periods; medicalsurgical units-1 month, 5 ICU-2 months, operation room-3 months. (4) We prepared a preceptor program based on the study results.

• 한국농촌건축학회논문집
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• 제10권3호
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• pp.51-58
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• 2008

The Youth Hostel in Korea, differently from that of other countries, has been introduced in order to attract School Excursion Group, and was developed as one of Youth Training Facilities. Youth Hostel as Youth Training Facility can be utilized as a healthy experiential space for youth education, as a stage for an international interchange, as a field for the lifelong education of various classes, and is also the Lodging Accommodation which is now highly appearing of the demand as a safe and educational lodging place to both individuals and family-unit tourists. The Purpose of this Research is aimed to provide the necessary fundamental materials to the planned forthcoming future Youth Hostel, after grasping of such present status as well as its structure and composition of space and spacial characteristic. Since Youth Hostel in Korea is managing on the center of the basis for youths and other groups, in order to compute the proper heads, it is required the scale-level which can accommodate all students in One-Unit Grade of a school at minimum. Accordingly, it seems that must be equipped with accommodating capacity of more than 300~400 persons. As because of recent quality-improvement in the portion of Youth Hostel Lodging, it is under planning with containing of the Sanitary Space at inside of lodging room, and Self-Cooking Space as well. In compliance with such various particulars, it looks that the lodging area should be at least more than $3.5m^2$ per a person.

• 센서학회지
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• 제7권1호
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• pp.61-66
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• 1998

C-축으로 배향된 고품질 $YBa_{2}Cu_{3}O_{7}$ 박막을 펄스레이저 증착법으로 $SrTiO_{3}$(100) 기판위에 제작하였다. STO 기판을 고온 산소열처리로 원시세포 높이의 테라스가 발달한 atomic-flat한 표면상태로 가공하였으며, 이 기판위에 최적의 조건에서 증착된 $YBa_{2}Cu_{3}O_{7}$ 박막은 원시세포단위로 층상으로 적층 성장됨을 알 수 있었다. 이러한 박막은 임계온도${\ge}90$ K, 전이폭${\le}0.6$ K, 상온비저항${\sim}300{\mu}{\Omega}cm$, 잔류저항${\sim}0$ 및 임계전류밀도${\sim}4.6{\times}10^{6}A/cm^{2} $의 초전도 특성을 나타내었다.

• 열처리공학회지
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• 제12권2호
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• pp.136-144
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• 1999

The study on the wear characteristics of compound layers formed during gaseous nitrocarburising in the medium carbon boron steels and the plain carbon steel has been carried out by using a pin-on-disc type wear test machine under the oil lubricating condition at room temperature and by varying applied loads, sliding speeds and wear distances. Values of friction coefficient measured at the sliding speed of 0.4m/sec under the oil lubricating condition have been shown to decrease considerably with increasing applied load and become gradually a constant value as load is increased to a higher value, showing that the transition load for friction coefficient appears at an applied load of 247.2N. The length and volume wear rates of compound layer have been revealed to relatively constantly increase, also showing that the wear life per unit thickness of compound layer turns out to be superior as porous layer has a denser and thinner appearance. As the sliding speed increases during wear test performed by varying sliding speed at a load of 63.2N under the oil lubricating condition for medium carbon boron steel nitrocarburised in gas atmosphere, the wear rate has been found to increase, the friction coefficient to decrease and the wear life per unit thickness of compound layer to decrease considerably.