• 간호행정학회지
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• 제18권1호
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• pp.23-32
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• 2012

Purpose: The purpose of this study was to assess the clinical application of a bar code medication administration and blood transfusion system and to identify its effects from the aspect of patient safety and nurse satisfaction in a tertiary hospital. Methods: The system in this study was PDA with bar code reading capability and wireless networking function. The logs created during application of the system and administration error reports were analyzed. For nurses' satisfaction with the system, data were collected from 337 nurses using the instrument developed by Otieno et al. and analyzed using descriptive statistics. Results: The system application rate was 98.8%, and the main failure cases in the system application included bar code or network related factors. When the system was applied, 0.02% of errors were prevented. The nurses were satisfied with the system from the aspect of patient safety, however relatively less satisfied with the system from the aspect of work efficiency. Conclusion: The results of the study indicate the usefulness for patient safety of applying the bar code medication administration and blood transfusion system to clinical practice. However technological improvements including bar code and network communication are necessary to ensure higher work efficiency in nursing practice.

• 한국지능시스템학회논문지
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• 제19권2호
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• pp.197-205
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• 2009

미래 디지털 환경에서 에너지 관리 시스템은 예기치 못한 정전이나 과부하 같은 응급 상황 이벤트들이 발생하면 이를 실시간으로 대처할 수 있어야 하고, 원격 검침과 같은 소비자 서비스 이벤트들도 신속하게 제공되어야 한다. 따라서 다양한 에너지 이벤트 정보들을 실시 간으로 전달할 수 있는 단순하면서 장치 독립적인 정보 교환 모델이 필요하다. 이에 본 논문에서는 XML을 기반으로 객체 지향 모델링을 사용하여 장치와 이벤트 모델링을 분리한 esXML을 개발하였다. 실험 결과 독립적이고 효율적으로 정보 교환을 할 수 있었다.

• International Journal of Knowledge Content Development & Technology
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• 제8권2호
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• pp.67-100
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• 2018

This study comprehensively draws a conclusion using factors of economic, social, and educational value and performed a survey on librarians and users to compare and analyze the difference in perception between the two groups. The result are as follows: First, Libraries had the social value not only on research and personal learning but also on establishment and vitalization of communities, provision of opportunities to share ideas between local residents and create something new, and provision of recreation to improve the residents' capability. Second, both groups evaluated the libraries' educational role and function relatively highly. In particular, the librarians scored very high for the items that the libraries' educational role was expanding, the libraries were a part of the educational system, and the libraries' value on reading and literacy was great, and the users thought that libraries had an value because they were a part of education and the educational system. Third, economic value part also obtained relatively lower scores than other values; the mean of the librarian group was 3.46 and the user group was 3.43. Among the economic values, the librarian group scored the highest for the area of economic value for local communities, and the greatest scores were given to manpower development by the users.

• 한국수학교육학회지시리즈C:초등수학교육
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• 제10권2호
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• pp.141-149
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• 2007

It is undeniably important to bring up a solution capability of arithmetic word problems in the elementary mathematical education. The goal of this study is to acquire the implication for remedial instruction on arithmetic word problems solving through surveying elementary school students' difficulties in the solving of arithmetic word problems. In order to do it, this study was intended to analyze the following two aspects. First, it was analyzed that they generally felt more difficulties in which field among addition, subtraction, multiplication and division word problems. Second, with the result of the first analysis, it was examined that they solved it by imagining as which sphere of the other word problems. Also, the cause of their error on the word problem solving was analyzed by the interview. From the foregoing analyses, the following implications for remedial instruction on arithmetic word problems solving are acquired. First, the accumulation of learning deficiency must be diminished through the remedial instruction. Second, it must help students to understand the given problem and to make of what the goal of problem is. Third, it must help students to form a good habit for reading the problem and to understand the context of problem. forth, the teacher must help students to review and reflect their problem-solving processes.

• 로봇학회논문지
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• 제5권2호
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• pp.110-119
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• 2010

This paper aims to add the autonomous driving capability to the inverted pendulum system which maintains the inverted pendulum upright stably. For the autonomous driving from the starting position to the goal position, the motion control algorithm is proposed based on the dynamics of the inverted pendulum robot. To derive the dynamic model of the inverted pendulum robot, a three dimensional robot coordinate is defined and the velocity jacobian is newly derived. With the analysis of the wheel rolling motion, the dynamics of inverted pendulum robot are derived and used for the motion control algorithm. To maintain the balance of the inverted pendulum, the autonomous driving strategy is derived step by step considering the acceleration, constant velocity and deceleration states simultaneously. The driving experiments of inverted pendulum robot are performed while maintaining the balance of the inverted pendulum. For reading the positions of the inverted pendulum and wheels, only the encoders are utilized to make the system cheap and reliable. Even though the derived dynamics works for the slanted surface, the experiments are carried out in the standardized flat ground using the inverted pendulum robot in this paper. The experimental data for the wheel rolling and inverted pendulum motions are demonstrated for the straight line motion from a start position to the goal position.

• 비파괴검사학회지
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• 제10권1호
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• pp.47-55
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• 1990

This paper presents experimental results which explore the capability of a CW laser speckle photography for tile measurement of in-plane displacement at high temperature. The serious restrictions on the application of the method seem to be the ambient air turbulence and the change of surface texture caused by the oxidation, as they tend to decorrelate the double exposured speckle patterns. In order to assess only the effect of air turbulence, a ceramics-coated stainless steel plate is heated in air and Ar-laser specklegrams are made with combination of temperature and lateral translation displacement. The slight reduction in visibility of Young's fringes is observed at $1000^{\circ}C$. The analyses of Young's fringes are carried out by a image processing system using a TV-camera and computers, and the result agrees well with the micrometer reading. Futhermore, uncoated stainless steel and Hastelloy X plates are tested and the effect of oxidation is also evaluated. The experimental results demonstrate that a CW laser speckle photography is applicable at temperatures up to $1000^{\circ}C$.

• Journal of Microbiology and Biotechnology
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• 제31권9호
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• pp.1323-1329
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• 2021

Micro-scale magnetic beads are widely used for isolation of proteins, DNA, and cells, leading to the development of in vitro diagnostics. Efficient isolation of target biomolecules is one of the keys to developing a simple and rapid point-of-care diagnostic. A zinc finger protein (ZFP) is a double-stranded (ds) DNA-binding domain, providing a useful scaffold for direct reading of the sequence information. Here, we utilized two engineered ZFPs (Stx2-268 and SEB-435) to detect the Shiga toxin (stx2) gene and the staphylococcal enterotoxin B (seb) gene present in foodborne pathogens, Escherichia coli O157 and Staphylococcus aureus, respectively. Engineered ZFPs are immobilized on a paramagnetic bead as a detection platform to efficiently isolate the target dsDNA-ZFP bound complex. The small paramagnetic beads provide a high surface area to volume ratio, allowing more ZFPs to be immobilized on the beads, which leads to increased target DNA detection. The fluorescence signal was measured upon ZFP binding to fluorophore-labeled target dsDNA. In this study, our system provided a detection limit of ≤ 60 fmol and demonstrated high specificity with multiplexing capability, suggesting a potential for development into a simple and reliable diagnostic for detecting multiple pathogens without target amplification.

• 한국미생물·생명공학회지
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• 제47권2호
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• pp.278-288
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• 2019

In the present investigation, we attempted to design a protocol to develop a hybrid protein with better bioremediation capacity. Using in silico approaches, a Hybrid Open Reading Frame (Hybrid ORF) is developed targeting the genes of microorganisms known for degradation of organophosphates. Out of 21 genes identified through BLAST search, 8 structurally similar genes (opdA, opd, opaA, pte RO, pdeA, parC, mpd and phnE) involved in biodegradation were screened. Gene conservational analysis categorizes these organophosphates degrading 8 genes into 4 super families i.e., Metallo-dependent hydrolases, Lactamase B, MPP and TM_PBP2 superfamily. Hybrid protein structure was modeled using multi-template homology modeling (3S07_A; 99%, 1P9E_A; 98%, 2ZO9_B; 33%, 2DXL_A; 33%) by $Schr{\ddot{o}}dinger$ software suit version 10.4.018. Structural verification of protein models was done using Ramachandran plot, it was showing 96.0% residue in the favored region, which was verified using RAMPAGE. The phosphotriesterase protein was showing the highest structural similarity with hybrid protein having raw score 984. The 5 binding sites of hybrid protein were identified through binding site prediction. The docking study shows that hybrid protein potentially interacts with 10 different organophosphates. The study results indicate that the hybrid protein designed has the capability of degrading a wide range of organophosphate compounds.

• 한국컴퓨터정보학회논문지
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• 제14권8호
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• pp.89-96
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• 2009

향후 에너지 환경에서 전력 관리 시스템은 예기치 못한 정전이나 과부하 같은 응급 상황 이벤트들이 발생하면 이를 실시간으로 대처할 수 있어야 하고, 원격 검침과 같은 소비자 서비스 이벤트들도 신속하게 제공되어야 한다. 뿐만 아니라, 시스템에서 발생되는 대용량의 정보들을 효과적으로 처리할 수 있는 기능도 필요하다. 이에 본 논문에서는 정보교환에 효율적인 XML(eXtensible Markup Language)을 이용하여 이벤트에 기반하며 대용량의 정보들을 부하 균형시키고, 핫 스폿(hot spot)을 줄일 수 있는 메타 데이터 처리 기법이 적용된 분산 전력 정보 관리 시스템을 개발하였다. 개발된 시스템을 실험하기 위해 무선통신으로 전력 단말기들을 제어할 수 있는 축소된 미래 전력 시스템을 제작한 후, 이를 통해 실험을 수행하였다.

• 직업교육연구
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• 제35권4호
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• pp.155-176
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• 2016

이 연구는 고등학교 교육과정 분석 결과 직업세계에 대한 진로개발 역량과의 관련성이 높은 기술 가정 교과서에 나타난 직업 제시 내용과 직업에 대한 인식을 분석하였다. 이를 위해 2007 개정 교육과정의 고등학교 기술 가정 검정교과서 6종 중에 점유율이 높은 3종을 선정하여 분석하였다. 분석 대상 내용은 교과서 내용 해당 직업내용을 명확하게 확인할 수 있는 내용을 대상으로 특성별 빈도, 직업에 대한 기술 인식을 분석하였다. 연구진이 분석한 내용은 결과의 타당성과 객관성 확보를 위해 현장 교사 2인의 검토 과정을 거쳤다. 연구 결과 기술 가정 교과의 직업은 발생사별, 단원별로 직업제시 빈도의 차이가 큰 것으로 나타났으며, 한국표준산업분류의 직업분류 수준별 제시 빈도가 실제 종사 현황과 일치하지 않는 것으로 나타났다. 교과서에 제시된 직업명은 한국직업사전 상 직업의 3.3% 수준이었으며, 청소년들의 선호직업 등이 높은 제시 비율을 보였다. 교과서에서 직업이 제시된 내용은 주로 본문보다 읽기자료, 사진 삽화 등의 유형에서 많이 나타났고, 직업에 대한 기술 인식은 대부분 '중립(82.8%)', '긍정(16.2%)'이었으며, 일부 부정적 사례(1.0%)도 편향적 의도는 없는 것으로 나타났다. 연구 결과를 토대로 고등학교 기술 가정 교과를 통한 진로개발 역량 지도 시 고려할 사항과 직업에 대한 이해와 진로개발 지도를 위한 교사의 전문성 함양, 새 교육과정의 교과서 집필 측면에서의 시사점과 개선 사항을 제시하였다.