• Journal of Korean Critical Care Nursing
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• v.17 no.1
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• pp.68-82
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• 2024

Purpose : This scoping review was designed to identify gaps in knowledge and guide future directions for clinical nursing practices and research on oral hygiene care for endotracheally intubated patients in Korean intensive care units. Methods : We conducted a scoping review using the methodological framework proposed by Arksey and O'Malley. PubMed, CINAHL, RISS, Science On, and DBpia databases were searched. Two reviewers independently selected the studies and extracted data. A total of 445 studies were identified, of which 17 were included in the final analysis. Results : No research has been conducted from 2021 to the present. A total of 12 instruments were utilized in 13 studies to assess the effectiveness of oral hygiene care. All studies investigating the effectiveness of oral hygiene care have consistently documented that chlorhexidine has the most significant effect. The frequency and time of oral hygiene care were each examined in one study. Conclusion : A research study is necessary to develop a measurement tool for assessing the effectiveness of oral hygiene care suitable for endotracheal intubated patients in intensive care units. Interventional studies should be conducted to determine the effects of chlorhexidine and the appropriate frequency and time of oral hygiene care. Thereafter, revision of domestic evidence-based clinical practice guidelines by integrating these results will be necessary.

• Tuberculosis and Respiratory Diseases
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• v.57 no.5
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• pp.434-438
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• 2004

Background : An excessive endotracheal cuff pressure can cause tracheal injury, and insufficient cuff pressure may not generate an effective cuff seal. The peak inspiratory pressure influences the minimal occlusion pressure of the endotracheal tube cuff. However, the relationship between the minimal occlusion pressure and the tidal volume has not been investigated. This study was conducted to estimate the relationship between the tidal volume and the minimal occlusion pressure of the cuff. Methods : Ten mechanically ventilated patients were included. The minimal occlusion pressure of the cuff was measured using a pressure gauge. The basal tidal volume was increased and decreased as much as 10% whilst maintaining the same peak inspiratory pressure. The, minimal occlusion pressures were then measured in the high and low tidal volume state, respectively. Results : The peak inspiratory pressure was $32.6{\pm}4.72cmH_2O$ and the minimal occlusion pressure was $19.0{\pm}2.26$ mmHg in the basal ventilator setting. There was a significant relationship between the peak inspiratory pressure and the minimal occlusion pressure(r=0.77, p<0.01). The minimal occlusion pressure of the cuff was increased to $20.3{\pm}2.4$ mmHg in the high tidal volume state(p<0.05), and decreased to $16.8{\pm}3.01$ mmHg in the low tidal volume state (p<0.001). Conclusion : The minimal occlusion pressure of the cuff can be influenced by changes in the tidal volume as well as by the peak inspiratory pressure.

• Journal of the Korean Society of Safety
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• v.6 no.2
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• pp.37-40
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• 1991

산업용 안전모는 그 기능상 耐貫通性과 衝擊吸收性이 중요하다. 이중내관통성은 별로 어려움이 없으나 충격흡수성은 무게 및 크기가 제한되고 극히 간단한 안전모의 구조에 충격을 충분히 흡수하는 Bumper작용까지 하여야 하므로 기준에 합격할수 있는 안전모를 제작하기 위하여는 여간 어려운게 아니다. 이에 論者는 일정한 무게의 추가 일정한 높이에서 자유낙하하여 안전모에 충격을 加하고서 반발할때까지의 안전모의 수직운동(변형)이 어느정도 이루어저야 하는지에 대하여 관심을 갖었다. 즉 모체든 착장체든 또는 모체와 착장체의 연결장소에서든 일정한 충격량을 받았을때 모체의정점(낙하물과 최초로 접한부분)이 수직으로 S'의 거리 만큼 움직여 주고 운동이 정지된다고 보았을때 S'과 m(추의중량), S(추가 떨어지는 높이) Fi(충격이 흡수되고 남은 충격력)와의 관계식을 뉴톤의 운동법칙으로 부터 수학적 방법으로 유도 함으로서 시험조건 및 검정 기준에 주어진 수치인 m, S, Fi,을 대입하므로서 S'을 알 수 있는바 이것을 기초로 안전모의설계및 제조된 안전모의 충격흡수 정도를 용이하게 판단 할 수있다.

• Journal of Korean Biological Nursing Science
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• v.22 no.2
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• pp.102-110
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• 2020

Purpose: The purpose of the study was to identify the comparison with the different methods of acupressure treatment in breast cancer patients undergoing chemotherapy. Methods: This study was a single group pretest-posttest design. Thirty patients age 30-65 scheduled for chemotherapy were included. The data were collected through self- reported questionnaires on nausea, vomiting, and anorexia and analyzed using descriptive statistics and the Wilcoxon signed ranked test. Results: The relieving effect of nausea and vomiting (Z= -2.54, p= .011) was significant in P6 acupressure by wrist bands. Conclusion: Patients undergoing chemotherapy have relieving effects on nausea and vomiting after P6 acupressure by wrist band. This study demonstrates the stimulation of the P6 acupressure by wrist band for reducing nausea and vomiting for breast cancer patients undergoing chemotherapy.

• Proceedings of the Korean Institute of Communication Sciences Conference
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• 2006.07a
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• pp.359-359
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• 2006

• The Safety technology
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• no.145
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• pp.12-14
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• 2010

서울의 중심 종로구, 한국의 선진 경제를 상징하는 각종 건축물이 모여 있는 곳. 우뚝 솟은 건물들은 아름다운 스카이라인을 연출하며 이곳을 오가는 수 십만 행인들의 탄성을 자아낸다. 지금 이곳에선 또 하나의 우수한 건축물이 베일을 벗고 기대에 찬 사람들을 맞이할 준비를 하고 있다. 그 주인공은 바로 신동아건설 신문로 2구역 제5지구업무시설 신축현장. 이곳을 흙먼지 펄펄 날리는 흔한 건설현장이라고 생각한다면 큰 오해를 할 것이다. 외관에서 내관에 이르기까지 깨끗이 정리된 모습은 현장을 방문한 이들이 '이 곳이 건설현장이 맞나'하는 의구심까지 들게 한다. 또한 '조금의 진동과 약간의 먼지도 허용하지 않겠다'는 투철한 각오로 도심 속 현장에 맞는 공법을 도입, 조용함 속에 철저한 시공을 진행하고 있다. 이곳 현장은 지하 5층~지상 14층 규모의 업무시설로 현재 46.5%의 공정률을 보이고 있다. 2010년 10월을 준공일로 예정하며, 준공까지는 대략 10개월 남짓 남은 상황, 현재까지 무재해를 이어가고 있다. 시시각각 변화하는 공정에다 여러 협력업체들이 모여 있는 건설현장의 가변적 특성에도 불구하고 지금까지 무재해를 이어오고 있는 것이다. 이같은 배경에 대해 이곳 현장의 임직원들은 현장 내 자연스럽게 자리잡고있는 '자율적인 안전관리 문화'와 '감성안전문화'를 꼽는다.

• Transactions of the Korean Society of Mechanical Engineers
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• v.10 no.1
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• pp.138-149
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• 1986

A numerical method is developed for the solution of fully developed turbulent recirculating flow whose cross-sectional area varies periodically. This enalbes the flow field analysis to be confined to a single isolated module, without involvement with the entrance region problem. This method are applied to the analysis of the turbulent flow field and heat transfer in artificially roughened annulus with repeated square rib.

• Transactions of the Korean Society of Mechanical Engineers B
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• v.23 no.5
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• pp.587-592
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• 1999

The combined effects of radius ratio and roughness pitch ratio on the turbulent fluid flow characteristics of the fully developed flow in the annullar tubes with rib-roughened core walls were determined for Reynolds number ranging from 12,000 to 66,000. To understand the underlying physical phenomena responsible for friction factor enhancement, measurements of velocity profiles and zero shear stress and maximum velocity positions were combined to propose the friction factor correlation. Friction factors were found to be a function of the roughness pitch ratio and radius ratio.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 1993.04a
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• pp.159-164
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• 1993

This paper presents a computer design program for In-Core Instrumentation(ICI) guide tube routing and locations on support system, and checking the interference between ICI guide tubes in the reactor coolant system of typical Pressurized Water Reactor. The program, ICITRIC, has been written in FORTRAN language which is available under UNIX environment. Results of this program are compared with those of the commercial code, PATRAN, and both results are almost same Also the results may provide input data for ICI system static and dynamic analysis performed by the commercial code, SUPER PIPE. This program can simulate ICI guide tube routing and locations on support system, and checking the interference between ICI guide tubes. Through a process of iteration, the designer can apply initial conditions, and modify the routing until satisfied with the overall system performance.

• Electronics and Telecommunications Trends
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• v.20 no.4 s.94
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• pp.82-92
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• 2005

Virtual Engineering은 가상현실 기술이 산업계에 적용되고 있는 대표적인 활용 분야이다. 본 글에서는 Virtual Engineering 기술을 소개하고 가상현실 시장 동향을 정리한다. 그리고, 관련 산업계의 대표적인 기술 수요 사례인 “자동차 디자인 가상 품평” 시스템의 구축을 중심으로 가상 디자인 품평 기술의 현황을 정리한다. 이상적인 가상현실품평 시스템은 사용자가 현업에서의 품평 상황과 동일한 체험을 얻을 수 있도록 지원해야 하는데, 이를 위한 핵심 기술로 실사 수준의 고품질 영상 출력을 위한 고해상도 몰입형 가시화 기술과, 사용자가 가상 자동차 사이를 자연스럽게 조작하는 상호작용지원 기술을 소개한다. 끝으로, 현재 한국전자통신연구원 디지털 콘텐츠 연구단에서 개발하고 있는 “자동차 내관 디자인 가상 품평 시스템”을 대표적인 연구 사례로 소개한다.