• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 봄 학술논문 발표대회
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• pp.357-358
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• 2023

Due to recent enhance of safety law and regulations in construction sites, safety inspectors have been more required in construction sites. However, most of them are novice for safety inspection which have not enough experience and skill. Therefore, the novice safety inspector's performance on hazard recognition needs to be improved for effective safety management. The performance of safety inspection is influenced by the inspector's experience and background because the inspection is usually conducted by the inspector's eyes. Therefore, there is a difference in safety inspection performance between novice and experienced safety managers. This study aims to analyze the gap of risk perception between novice and experienced safety managers using quantitative visual data. For this objective, this study conducted eye tracking experiments for novice and experienced group to evaluate cognitive performance of safety risk factors. The results provides the level of safety awareness based on their experience in construction safety. The limitation of this study is a lack of the number of samples used in this study and did not consider the various characteristics of the participants. If these limitations are supplemented in future research, it can be used to develop safety education contents for novice safety managers.

• 성인간호학회지
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• 제12권2호
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• pp.196-208
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• 2000

The purpose of the study was to explore the effect of 2 hour infusion of vancomycin(1g) in 200ml of isotonic saline every 12 hour on the frequency of "red man syndrome", phlebitis and length of peripheral catheter placement of infected patients, in order to provide safe infusion method for reducing vancomycinin-duced RMS and phlebitis. The subjects of the study consisted of 16 hospitalized patients; 3 oncology and gastro-intestinal patients, 1 neurological patient, 6 thoracic surgical patients and 6 orthopedic patients, who had received vancomycin from July to October in 1999 at S-hospital. The dependent variables were the incidence of RMS, phlebitis and the length of peripheral catheter placement. The incidence of RMS was checked by an inspector at the first night whenever the infusion method of vancomycin was changed. RMS was observed every 15 minutes during an hour for symptoms of RMS such as itching, erythema, chest pain and systolic blood pressure. Incidence of phlebitis was assessed by inspector twice a day from the insertion of peripheral catheter to the removal of the catheter. The data were analyzed by percentage, mean, $X^2$-test, t-test, repeated ANOVA, and logistic regression analysis using the SPSSWIN program. The results are summarized as follows; 1. No significant difference was identified in frequency of RMS between the experimental group and control group. 2. There was no significant difference in the change of systolic blood pressure as the time goes on between the experimental group and control group. 3. The incidence of phlebitis was significantly lower in the experimental group than in the control group. 4. The length of peripheral catheter placement was significantly longer in the experimental group than in the control group. 5. Other drugs administrated with vancomycin didn't influence the occurrence of phlebitis. However, the infusion method of vancomycin influenced the occurrence of phlebitis. The results suggest that 2 hour infusion of vancomycin(1g) in 200ml of isotonic saline every 12 hours may decrease the incidence of phlebitis and increase the length of peripheral catheter placement compared to 1 hour infusion of vancomycin(1g) in 100ml of isotonic saline every 12 hours. However, it does not reduce the incidence of RMS.

• 해양환경안전학회지
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• 제25권5호
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• pp.511-518
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• 2019

본 연구는 연안여객선 안전관리 향상을 위해 우선적으로 개선되어야 할 요인을 도출하고, 안전관리 주체 간 인식차이를 분석하는데 목적이 있다. 안전관리 개선 요인 발굴을 위해 전문가 그룹을 구성 후 델파이 조사를 실시하여 요인을 3개의 대분류와 10개의 중분류로 계층화 하였다. 이후 요인 간 상대적 중요도를 평가하기 위해 점검자 그룹(해사안전감독관, 선박운항관리자)과 수검자 그룹(안전 관리책임자, 연안여객선사 관계자)으로 구분하여 설문조사를 실시하고 계층분석법(AHP)을 이용하여 분석하였다. 그 결과 점검자 그룹에서는 대중교통수단 지정 요인이 가장 중요하게 나타났고, 수검자 그룹에서는 선원복지 지원 요인이 높게 나타났다. 계층분석법을 이용한 중요도 분석을 보완하기 위해 t-검정을 이용하여 두 그룹 간 안전관리 개선 요인에 대한 인식의 차이를 분석하였다. 그 결과 상대적 중요도 평가결과와 대부분 일치하였으나 점검 인력 증원, 점검 인력 자격기준 강화, 운항관리 출장소 추가에 있어서는 인식의 차이가 발생하였다. 이 연구결과는 향후 연안여객선 안전관리 제고를 위한 정책 등에 기초자료로 활용할 수 있을 것이다.

• Journal of the Korean Institute of Landscape Architecture International Edition
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• 제2호
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• pp.178-184
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• 2004

The Yatomi - Aioiyama line is a city-planning road that was notified in 1957 and subsequently prepared by land readjustments. Currently, approximately 900m of road pass in the inside of the Aioiyama green area has not been constructed. The surveying briefing session for inhabitants was held in July 1992, the project was authorized by the Ministry of Land, Infrastructure and Transport in September 1993, and the project briefing session for inhabitants was held in September 1993. The site purchase has been completed. At the May 2000 briefing session, inhabitants of the area began voicing dissenting demanding the conservation of the natural environment of this green area. The inspector system serves as the third party, independent of both the administration and the inhabitants. Before finalizing the geometric line form of the road to be constructed, some surveys of animals and plants found along the walking trails carried out intensively in the northern area, which is approximately 50 ha, of the Aioiyama green area. The natural environment inspector submitted a plan for changing the geometric line form of the road decided upon by city planning, and it was approved by the city planning council. If the shelter structure or the retaining wall structure is adopted at the location where large slope faces are produced by excavation or landfill, and if the bridge structure is adopted at the place where stream-lines and walking trails intersect, it leads to a reduction of approximately $40\%$ in the areas for which change is planned. Furthermore, approximately $20\%$ of the area to be changed is restored by returning soil to the roof of the shelter.

• 한국컴퓨터산업학회논문지
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• 제4권4호
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• pp.449-454
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• 2003

본 논문에서는 USB 인터페이스를 이용한 GU 환경의 제어기를 구현해 보였다. 특히, 프론트 판넬에 취부된 외부 USB 포트의 성능 검사는 비쥬얼 C++ 검사 프로그램을 사용하여 자동적으로 실행되도록 하였다. 성능검사 프로그램은 실험 결과를 가청적 또는 가시적으로 표시함으로서 작업자의 조작을 최소화하고, 생산성을 최대화할 수 있도록 하였다. GUI 환경의 제어기는 검사 프로그램을 사용하여 표준방식 키보드, 트랙볼. 엔코더, 아날로그 퍼텐시오미터, 2개의 디스플레이장치 및 터치스크린을 제어 할 수 있다.

• 한국수산과학회지
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• 제55권5호
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• pp.688-696
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• 2022

Obesity could cause immune-physiological disorders in fish. Yet, little is known about the impact of obesity on stress and histological responses. This study aimed to determine histological and physiological changes in and vulnerability of overfeeding-induced obese rainbow trout Oncorhynchus mykiss exposed to stress condition. Control, intermediate and overfed groups were fed at 1.5, 2.5 and 3.09% of their body weight per day, respectively, for eight weeks. Weight gain, body mass index, hepatosomatic index and serological parameters, and histology of liver were measured in five fish from each group at week 0, 2, 4, and 8. At week 8, 20 fish from each group were exposed to heat stress by increasing water temperature at a rate of 3℃ per day from 15 to 25℃ and maintaining the final temperature for 10 days. Overall, overfed fish showed significantly higher weight gain, body mass index, and serological parameters than those of fish in the other groups. Fish in the overfed and intermediate groups displayed multifocal infiltration of inflammatory cells in hepatic parenchyma. Mortality rate and serological parameters of fish in the overfed group exposed to heat stress were significantly higher than those of fish in the other groups, indicating increased vulnerability to environmental stress.

• KIEE International Transactions on Electrophysics and Applications
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• 제2C권6호
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• pp.309-313
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• 2002

In this paper, we have studied minimization of the kerf-width and surface burning, which occurred after the conventional singulation process of the multi-layer BGA board with copper, polyethylene and epoxy glass fiber. The high thermal energy of a pulsed Nd:YAG laser is used to cut the multi-layer board. The most considerable matter in the laser cutting of the multi-layer BGA boards is their different absorption coefficient to the laser beam and their different heat conductivity. The cut mechanism of a multi-layer BGA board using a 2$^{nd}$ harmonic Nd:YAG laser is the thermal vaporization by high temperature rise based on the Gaussian profile and copper melting point. In this experiment, we found that the sacrifice layer and Na blowing are effective in minimizing the surface burning by the reaction between oxygen in the air and the laser beam. In addition, N2 blowing reduces laser energy loss by debris and suppresses surface oxidation. Also, the beam incidence on the epoxy layer compared to polyimide was much more suitable to reduce damage to polyimide with copper wire for the multi layer BGA singulation. When the polyester double-sided tape is used as a sacrifice layer, surface carbonization becomes less. The SEM, non-contact 3D inspector and high-resolution microscope are used to measure cut line-width and surface morphology.

• Asian-Australasian Journal of Animal Sciences
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• 제19권10호
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• pp.1399-1403
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• 2006

A total of 80 cows, including 40 top mastitis resistant and 40 top mastitis susceptible animals as Group I and Group II, were selected from a population of 520 cows based on clinical mastitis occurrence. PCR-SSCP analysis on four fragments within the 5'region and two fragments of Exons 4,15 of bovine lactoferrin (bLF) revealed that four fragments-P1,P4,E4,E15-had polymorphisms which totally included six base mutations, and only two of them had significant differences in allele frequencies between resistant and susceptible groups, P1 (53.7% vs. 70.0%, p<0.05) and P4 (55.0% vs. 68.8%, p<0.05). Further study on these two promising markers combined with the milk performance traits of cows demonstrated that their selection would result in higher fat percentage (p<0.05), lower Somatic Cell Score (SCS) (p<0.05) and Clinical Mastitis Residuals (CMR) (p<0.01) indicating higher mastitis resistance and lower milk yield (p<0.05). The putative transcription factor binding sites in the 5'region were also studied by using MatInspector 7.2.2 software, and two signal pathways regulating the expression of bLF including the NF-${\kappa}B$ pathway and nuclear hormone receptor pathway were predicted.

• 고전문학과교육
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• 제39호
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• pp.67-97
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• 2018

이 논문은 같은 설화 작품에 대한 과거와 오늘날의 달라진 반응을 비교함으로써, 설화 향유에 관여하는 서로 다른 문화적 맥락을 밝히는 것을 목표로 한다. 이것은 세대 간 소통을 위한 설화교육 방법론을 모색하는 연구의 일환이다. 본 연구에서 대상으로 삼고 있는 작품은 <가짜 삼촌 위해 치성드린 아내>이며, "한국구비문학대계"에 채록된 이야기판의 반응과 현재 대학생 독자의 감상문을 비교했다. 채록 당시 이야기판에서는 이 설화 속 인물들의 처지를 불쌍하게 여기며 그들이 새로운 가족을 얻게 됨으로써 행복한 결말에 이르는 것을 기뻐했다. 반면 오늘날 대학생들은 이 설화 속 인물이 무능력하다고 보았고, 그들의 성공을 타인에게 의지하여 우연히 얻은 것이라 평가절하하였다. 이와 같은 차이는 설화를 이해하는 데 개입한 향유 집단의 문화와 밀접한 관련이 있었다. 채록 당시 향유자들의 문화 맥락은 공감, 동정심, 도움, 존중, 상호 의존성, 유대, 배려 등이 중요한 가치로 작용하였다. 그 결과 서사의 주체들이 인간관계를 맺기 위해 노력하는 것이나 그에 호응해 주는 것을 모두 훌륭한 태도로 보게 했다. 한편, 대학생의 반응은 개인의 자유의지와 권리가 존중되며 근면, 성실함이 강조되는 문화적 맥락에 기반하고 있었다. 그 결과 아내가 가짜 삼촌을 위해 기도하는 것을 의존적인 존재의 비합리적인 행동으로 이해하였고, 성공한 양반이 삼촌 노릇을 해주는 것은 요행히 착한 사람을 만나 아내와 남편이 보상을 얻게 된 것으로 보았다. 설화 이해에 기반이 된 문화적 맥락의 차이로 인해 <가짜 삼촌 위해 치성드린 아내> 속에 형상화된 삶은 대학생들에게 왜곡되었고 과거 세대와의 소통은 단절되었다. 이를 완화시킬 수 있는 설화 교육으로 대학생 향유자들에게 먼저 <백정 당숙 어사 조카>를 활용할 것을 제안했다. <백정 당숙 어사 조카>는 대학생의 사회문화적 맥락과 유사하면서 <가짜 삼촌 위해 치성드린 아내>와 문제의식이 비슷하기 때문이다. 그리하여 첫째 <백정 당숙어사 조카>를 통해서 대학생들에게 관습적 맥락과 대립을 경험하게 하고, 점차로 <가짜 삼촌 위해 치성드린 아내>에 대한 새로운 이해에 나아갈 수 있도록 단계화할 것을 제시했다.

• 대한치과보철학회지
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• 제52권2호
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• pp.97-104
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• 2014

연구 목적: 본 연구의 목적은 현재 시판되는 4종의 레진계 임플란트 전용 임시 시멘트를 디지털 방사선 사진을 분석하여 방사선 불투과성을 비교 평가 하는 것이다. 연구 재료 및 방법: 주문 제작한 분할형 금속몰드에 4종의 레진계 임플란트 시멘트(Estemp $Implant^{TM}$ (Spident, Incheon, Korea), $Premier^{(R)}$Implant (Premier, Pennsylvania, USA), $Cem-Implant^{TM}$ (B.J.M lab, Or-yehuda, Israel), $InterCem^{TM}$ (SCI-PHARM, California, USA))와 대조군인 Elite Cement$100^{TM}$ (GC, Tokyo, Japan)를 각각의 제조사의 지시에 따라 혼합하여 경화시킨다. 시멘트당 두께에 따라 각 10개씩 총 150개의 시편을 제작하고 각 시편을 순수(99%이상) aluminum으로 제작한 step wedge와 나란히 위치시켜 Intraoral X-ray unit (Esx, Vatech, Korea)와 디지털 X-ray sensor (EzSensor, Vatec. Korea)를 사용하여 촬영하였다. 디지털 방사선 이미지를 Image J 1.47m (Wayne Rasband, National Institutes of Health, USA)과 Color inspector 3D Ver 2.0 (Interaktive Visualisierung von Farbr$\ddot{a}$umen, Berlin, Germany)의 프로그램을 이용하여 aluminum wedge equivalent thickness (mm Al)를 평가하였다. 결과: 본 연구에서 사용된 5종의 시멘트 중 방사선 불투과성은 Elite Cement$100^{TM}$이 모든 두께에서 가장 높았으며 레진계 임플란트용 시멘트중에서 $InterCem^{TM}$이 가장 높았고, $Premier^{(R)}$ Implant $Cement^{TM}$, $Cem-Implant^{TM}$, Estemp $Implant^{TM}$순으로 나타났다. 레진계 임플란트용 시멘트 중 $InterCem^{TM}$은 모든 두께에서 ISO Standard No. 4049에 맞는 방사선 불투과성을 보였고, $Cem-Implant^{TM}$는 0.5 mm 두께에서만 ISO Standard No. 4049에 적합한 방사선 불투과도를 나타냈다. 결론:이번 연구에 사용된 레진계 임플란트 시멘트중 방사선 불투과도는 전반적으로 높지 않았고, $InterCem^{TM}$ 만이 연구조건 및 기준에 만족하는 방사선 불투과도를 보였다.