• 한국정보통신학회논문지
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• 제11권11호
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• pp.2150-2157
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• 2007

본 논문에서는 개인의 건강 상태를 일련의 과정에 따라 스스로 파악하여 전문 의료 관리에 대한 접근 방향의 결정을 돕고 전문의가 쉽게 새로운 질병 및 증상을 학습 할 수 있도록 하는 자가 질병 진단 시스템을 제안하였다. 제안된 자가 진단은 보건 복지부에 제출된 #한국인이 부담을 가지는 질병# 관련 보고서와 의료 콘텐츠 #Engel Pharm#을 참조하여 선정한 60가지의 질병과 각 질병에 대한 대표 증상 161가지를 이용하여 질병을 도출한다. 개선된 ART2 학습 알고리즘을 적용하여 질병 종류를 군집화하고 각 질병의 증상에 관련된 질의 결과를 입력 벡터로 제시하여 사용자의 건강 상태를 진단함으로써 자신의 건강에 대한 정보를 제공한다.

• 기록학연구
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• 제55호
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• pp.97-133
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• 2018

국방기록물관리기관은 총 133개이며 개별 기록관의 고유문제 뿐만 아니라 공통문제를 점검하고 이를 해결하기 위한 전략이 필요하다. 국방기록물관리기관의 전략적 운영모형은 기록관의 운영문제를 점검하고 전략적으로 해결하기 위해 개발한 툴이다. 국방기록물관리기관의 문제를 점검하고 업무개선을 위해 지휘관의 전략적 판단을 획득하고자 할 때 도움을 주고자 하였다. 그리고 기록관리 정책을 수립하고자 하는 국방부 등의 정책기관과 중장기 발전계획을 수립하여 기록관의 개선을 도모하는 개별 국방기록물관리기관에서 사용할 수 있도록 제안되었다. 문헌연구를 기반으로 전문가의 검증, 통계적 분석, 국방기록관의 특성을 반영하여 7개 영역 67개 항목으로 개발되었다. 그리고 국방부가 전략적 운영모형을 활용한 실증사례를 통해 기록관의 개선전략수립과 활용을 제안하고자 한다.

• Journal of Radiation Protection and Research
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• 제44권2호
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• pp.79-88
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• 2019

Background: The main goal of experiments is to compare various operational and technical characteristics of D-Shuttle semiconductor personal dosimeters of the Japanese company "Chiyoda Technol Corporation" and Harshaw thermoluminescent dosimeters (TLD) manufactured by "Thermo Fisher Scientific" and DTL-02 of the Russian Research and Production Enterprise (RPE) "Doza" by their occupational and calibration exposure at various dose equivalents from 0.5 to 20 mSv of gamma-radiation. Materials and Methods: Besides dosimeters DTL-02, D-Shuttle and Harshaw TLD, there were also used: (1) the primary reference radionuclide source Hopewell Designs IAEA: G10-1-12 with $^{137}Cs$ isotope (an error is not more than 6% and activity is 20 Ci), and (2) the verification device UPGD-2M of RPE "Doza" and installed in the National Center for Expertise and Certification of the Republic of Kazakhstan (Kapchagai, the National Center for Expertise and Certification). Results and Discussion: The main results of researches are the following: (1) TLDs for Harshaw 6600 and DVG-02TM have an approximately equal measurement accuracy of the individual dose equivalents in the range from 0.5 to 20 mSv of gamma-radiation. (2) Advantages of dosimeters for Harshaw 6600 are due to the high measurement productivity and opportunity to indicate the dose on the skin $H_p$(0.07). Advantages of DVG-02TM consist of operation simplicity and lower cost than of Harshaw 6600. (3) D-Shuttles are convenient for use in the current and the operational monitoring of ionizing radiation. Measurement accuracy and 10% linearity of measurements are ensured when D-Shuttle is irradiated with dose equivalents below 1 mSv at the equivalent dose rate not higher than $3mSv{\cdot}hr^{-1}$. This allows using D-Shuttle at a routine technological activity. Conclusion: The obtained results of experiments demonstrate advantages and disadvantages of D-Shuttle semiconductor dosimeters in comparison with two TLD systems of DVG-02TM and Harshaw 6600.

• 디지털산업정보학회논문지
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• 제17권1호
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• pp.57-73
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• 2021

The purpose of this study is to analyze the diffusion period and productivity of smartwork in an organization. Firms are increasingly interested in smartwork for non contact work and working from home because of the corona 19. The smartwork is a new technology that changes face-to-face work in an organization. It helps the work of individuals and organizations regardless of time and place. The theoretical background describes the complexity, system thinking, diffusion theory, smart work, organizational resistance, and productivity. This study analyzes the diffusion period and productivity of smart work through business simulation techniques. A simulation study progresses four stages. There are problem definition, hypothesis establishment and causal loop diagram, model construction and verification, and policy evaluation. The simulation models contain an individual's resistance variables organizational investment and leadership variables related to the operation of smartwork. The organizational investment variables include organizational culture, legal system, implement systems and technology investment. The individual resistance variables include cognitive, attitude, structure and technological resistance. The leadership includes leadership interest variables and performance linkage variables. The simulation executed the changes of a people number adopting smart work and the organizational productivity monthly. As a result of the simulation, many organization members have accepted the smart work innovation after 20 months. The organizational productivity through smart work showed very high value after 16 months. In scenario analysis, the individuals' awareness and attitude resistance showed very important variables to productivity and a personal change of smart work adoption. Meanwhile, The organizational investment showed that the high driving-force increased not productivity and the low driving-force showed decreased low productivity. Also, leadership variables showed a powerful driver for changing smart work productivity. The implication of the study has suggested extending complexity, diffusion theory and organization resistance theory based on simulation methods.

• 보건의료생명과학 논문지
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• 제11권2호
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• pp.279-288
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• 2023

본 연구는 국내 간호대학생을 대상으로 임상실습만족도에 대한 주요 연구동향 및 측정도구를 분석함으로써 향후 간호대학생의 임상실습만족도의 연구방향을 제시하기 위해 수행되었다. 국내 데이터베이스에서 1985년부터 2022년까지 학술지에 게재된 논문을 대상으로 '간호대학생', '임상실습만족도', '실습만족도', '임상실습', '실습만족', '실습'의 주제어로 검색하여 선정 및 제외기준에 따라 최종 91편의 논문을 분석하였다. 분석결과 선정된 논문은 양적연구가 91편(100%), IRB 미승인 연구 75편(82.4%), 연구도구는 신뢰도·타당도 검증이 부족하였다. 또한 임상실습만족도 관련 변수는 학생 개인 측면의 변수가 대부분이었으며, 그 중 개인역량·정서적 특성과 관련된 변수가 35종이었다. 향후 간호 전문직 발달 측면에서 학생의 임상실습만족도를 향상하기 위한 제도적, 정책적 노력이 필요하다.

• Structural Engineering and Mechanics
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• 제32권3호
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• pp.371-382
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• 2009

Response of harbor structure to environmental loads such as wave load, impact load, ship's contacting load, is a fundamental factor in designing of the structure's optimal configuration. In this paper, typical environmental loads against coastal structures are investigated for designing of the optimal harbor structure. Loads to be considered here are wave load, impact load and contacting load due to ship mooring. Statistical analysis for several harbor structure types under the corresponding loads is carried out, followed by investigation of effect of individual environmental load. Based on these, the optimal configuration for the harbor structure is obtained after considerable engineering process. Estimation of contacting load of the ship is suggested using effective energy concepts for the load, and analysis of structural behavior is done for the optimal designing of the structure in the particular load. A guideline for the design process of the harbor structure is established, and safety of the structure is examined by proposed scheme. For verification of the analytical approach, various steel-piled coastal structures and caissons are chosen and relevant structural analyses are carried out using the Finite Element Methods combined with MIDAS/GTS and ANSYS code. It is found using the Morison equation that impact load cannot be a major load in the typical harbor structure compared with the original wave load, and that configuration shape of the structure may play an important role in consideration of the response criteria.

• 환경영향평가
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• 제6권2호
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• pp.113-121
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• 1997

LHR(Landfill Hazard Ranking Model) was developed for assessing the relative hazard of landfills by using the method of value-structured approach. LHR consists of combining a multiattribute decision-making method with a qualitative risk assessment approach. A pairwise comparision method was applied to determine weights of landfill factors related. To prove the validity of weights allocation of landfill hazard evaluation factors, sensitivity analysis was applied. Firstly, the impact on landfill hazard score according to variations of weights of landfill hazard factors was analyzed. Secondly, the impact on landfill hazard score according to conditions change of landfill hazard factors was analyzed. As a result of sensitivity analysis, LHR composite scores are largely influenced by some factors following sequential order such as waste volume, proximity to sensitive environments, containment facilities, distance from drinking water supplies, and waste toxicity. The relative order of landfill hazard evaluated by LHR is not influenced by the weights change of individual factors. Therefore, LHR seems to be a credible model to determine priorities of landfill remediation based on the vulnerability of water resources.

• Journal of Nutrition and Health
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• 제16권2호
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• pp.107-114
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• 1983

There has been no specific test available for identifying the sesame oil among common edible oils. As the contents of sesamin and the ratio of sterols allowed the estimation for the genuine sesame oil, the author investigated to establish some instrumental methods for verification of genuine sesame oil and its distribution in the market. The sesame oil was saponified and the sesamin and sterols were isolated from the unsaponiable fraction by Florisil column chromatography. The individual components were determined by gas- chromatography and sesamin standard (purified sesamin) was obtained by silicagel column chromatography. The gas- chromatographic condition using Flame Ionization Detector supported on 10% OV-101 with di-(2-ethylhexyl) sebacate as an internal standard was suitable, and quantitation of sesamin and sterols, including campesterol, stigmasterol and ${\beta}-sitosterol$ was carried out. The results of this study showed that contents of sesamin in genuine sesame oil were 0.3-0.5% and the ratio of stigmasterol to compesterol was 0.3-0.6 and ${\beta}-sitosterol$ to campesterol 3.0-3.8. The 50 samples from the markets in Seoul were composed of 70% genuine sesame oil, and others were mixed with palm oil, rape seed oil and soybean oil.

• 대한기계학회:학술대회논문집
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• 대한기계학회 2007년도 춘계학술대회A
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• pp.496-501
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• 2007

Recently, as MEMS and NEMS devices have been widely used in the various engineering applications, the characteristics of nanoscale systems are investigated in the limelight. However, as opposed to a macroscale system, the identification of the state of nanoscale systems is extremely hard because they can include only the order of $10^{3}\sim10^{5}$ molecules, which requires highly expensive and accurate experimental apparatus for an investigation. This limitations make the study on nanoscale system use computer simulations. Therefore, it is strongly required to identify the state of nanoscale system simulated in computer simulation. In these molecular dynamics(MD) study, we suggest that the potential energy of individual molecule can be used as criterion for defining the state of clusters or nanoscale systems. In addition, we compared the phase state from the potential energy with one from the radial distribution function(RDF) for verification. The comparison showed that the intermolecular potential energy can be used as a criteria distinguishing the phase state of nanoscale systems (This study will be published soon in the KSME transaction of the section B).

• 한국도서관정보학회지
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• 제33권4호
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• pp.125-147
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• 2002

본 연구는 상사의 리더십 유형(변혁적 리더십과 거래적 리더십)이 대학도서관 사서들의 직무만족에 미치는 영항을 분석하는데 목적을 두었다. 이를 위하여 부산시내에 소개한 11개 대학도서관의 사서 155명을 대상으로 설문조사를 행하였다. 연구결과 1)상사의 리더십 유형과 하위자의 직무만족 간에는 정(+)의 상관관계가 있고 변혁적 리더십이 더 높은 상관관계가 있다. 2)변혁적 리더십은 직무자체, 관리감독 및 동료관계 요인에 정(+)의 영향을 미치고 거래적 리더십은 승진요인에만 유의한 영향을 미친다. 3)상사의 리더십 유형이 직무만족에 미치는 영향에서 변혁적 리더십과 직무만족 사이에서 성별과 결혼여부가 조절 변수의 역할을 하는 것으로 나타났다.