• Steel and Composite Structures
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• 제27권1호
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• pp.49-74
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• 2018

Generally, beam-column joints are taken into account as rigid in assessment of seismic performance of reinforced concrete (RC) structures. Experimental and numerical studies have proved that ignoring nonlinearities in the joint core might crucially affect seismic performance of RC structures. On the other hand, to improve seismic behaviour of such structures, several strengthening techniques of beam-column joints have been studied and adopted in practical applications. Among these strengthening techniques, the application of FRP materials has extensively increased, especially in case of exterior RC beam-column joints. In current paper, to simulate the inelastic response in the core of RC beam-column joints strengthened by FRP sheets, a practical joint model has been proposed so that the effect of FRP sheets on characteristics of an RC joint were considered in principal tensile stress-joint rotation relations. To determine these relations, a combination of experimental results and a mechanically-based model has been developed. To verify the proposed model, it was applied to experimental specimens available in the literature. Results revealed that the model could predict inelastic response of as-built and FRP strengthened joints with reasonable precision. The simple analytic procedure and the use of experimentally computed parameters would make the model sufficiently suitable for practical applications.

• 기본간호학회지
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• 제15권2호
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• pp.134-142
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• 2008

Purpose: This study was done to identify satisfaction with the method of evaluating practical skills in fundamental nursing through cellular phone animation self-monitoring and feedback. Method: The participants were 163 first-year student nurses. Data were collected from October 1 to 5 2007 using a structured questionnaire. Results: The average score for satisfaction was 3.65(${\pm}.69$) and the highest score was for the item, "I was pleased to have the opportunity of relearning by looking back at my behaviors through self monitoring" with 4.05(${\pm}.89$). The average score for dissatisfaction was 3.23(${\pm}.90$) and the highest score was "I memorized only orders according to the checklist" with 3.65(${\pm}.97$). The practical tests method showed a significant difference according to motivation for application to college of nursing (F=3.11, p=.047). There was a significant positive correlation between practical education satisfaction and test method (r=.363, p=.000). Conclusion: These findings show that there is a need to develop strategies to improve practical test methods for student nurses.

• The Korean Journal of Physiology and Pharmacology
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• 제25권6호
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• pp.545-553
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• 2021

Fixed-dose combinations development requires pharmacokinetic drugdrug interaction (DDI) studies between active ingredients. For some drugs, pharmacokinetic properties such as long half-life or delayed distribution, make it difficult to conduct such clinical trials and to estimate the exact magnitude of DDI. In this study, the conventional (non-compartmental analysis and bioequivalence [BE]) and model-based analyses were compared for their performance to evaluate DDI using amlodipine as an example. Raw data without DDI or simulated data using pharmacokinetic models were compared to the data obtained after concomitant administration. Regardless of the methodology, all the results fell within the classical BE limit. It was shown that the model-based approach may be valid as the conventional approach and reduce the possibility of DDI overestimation. Several advantages (i.e., quantitative changes in parameters and precision of confidence interval) of the model-based approach were demonstrated, and possible application methods were proposed. Therefore, it is expected that the model-based analysis is appropriately utilized according to the situation and purpose.

• 대한안전경영과학회지
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• 제10권2호
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• pp.143-154
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• 2008

With the recent rapid growth of RFID technologies, the Application of RFID systems into the medical or the military industries as well as into the distribution and logistics industry are now attempted continuously. The government and private sectors plan to carry out various small and large scale projects related to RFID systems. However, many companies attempting to apply RFID systems applications into their organizations are encountering many several difficulties because of the lack of installation experience and the absence of an useful guideline. This paper focuses on identification and classification of typical barriers to the successful application of RFID systems according to the five-step method of system application process. Moreover a "barrier map" is produced by conducting a survey and interviews by specialists. In addition, a practical guideline to overcome such barriers is presented and discussed.

• 대한전자공학회논문지
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• 제12권1호
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• pp.7-11
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• 1975

12-Tuple DS (digit sequence) (또는 coordinate sequence)의 여러 가지 성질에 관하여 논하였으며 그것을 통일적으로 표시하기 위한 31종의 PDS(prime digit sequence)를 제안하여 이에 단순히 회전변환만을 실시함으로써 실제의 부호를 표시하는 348종의 DS를 얻을 수 있고 또 이것들에 대한번호교환 즉 순열(permutation)과 부호의 초기조건을 고려하면 단위거리 12진 부호의 총수는 120,576종이며 이 중의 임의의 부호를 지정하든지 기술하든지 할 수 있도록 하였다. 그리고 대칭부호(반대부호), Lippel 부호등 특수한 부호를 위한 DS들의 특성과 그것들이 회로화에 대하여도 언급하였다. Investigations on sole characteristics of unit-distance duo-decimal codes are carried out, and 31kinds of Prime Digit Sequence (PDS) are proposed in order to express various digit sequences. From these PDS, by means of the rotational conversion, 348 digit sequences which express the practical GC are obtained, and, ism these digit sequences, it is found that there are 120576 unit distance codes by the permutation of the coordinate number and the initial condition of the codes. Some special codes such as reflected or symmetrical codes and Lippel codes, and their application to the practical GC counter are also studied.

• 한국가정과교육학회지
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• 제4권1호
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• pp.43-55
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• 1992

The purpose of this reasearch is to supply the basic data to improve Home Economics curriculum. This research was intended for 190 home economics teachers who are teaching in Kwang-Ju and chun-nam. The results are summarized as follows； 1. Among the objects of Home economics, the most important objects were to make students understand the significance of family life and development of family numbers. It requires 4 or 5 hours a week to learn these objects. 2. The amount of curriculum was immense and the level of curriculum was higher than students’level. More intencifying field are in this order； sex education, propriety education, consumption life, occupation, and computer education. 3. In home economics curriculum, the main stress was laid upon the application of action and learning content was focused on the matter set in the examination. 4. Theory and practical training classes were usually in the ratio of 7：3 and 8：2 in the current school classes. Ideal training classes are in the ration of 4：6, 5：5, 6：4, which showed that much weight was given to the practical exercises. 5. In practing subject matter, students tended to practice only main subject matter. The reason was primarily due to the lacks of equipments and faccilities, the limitation of training time for enterance examination and budgetary deficit. 6. Application of resorces was in the order of files, realia, samples, hanging chart, O.H.P and V.T.R. 7. The method of evaluation was mostly composed of paper and pens and practical evaluation when the practical evaluation was carrient out, in the case of necessity the standard of evaluation was made out.

• Translational and Clinical Pharmacology
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• 제26권4호
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• pp.166-171
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• 2018

Although there are many commercially available training software programs for pharmacokinetics, they lack flexibility and convenience. In this study, we develop simulation software to facilitate pharmacokinetics education. General formulas for time courses of drug concentrations after single and multiple dosing were used to build source code that allows users to simulate situations tailored to their learning objectives. A mathematical relationship for a 1-compartment model was implemented in the form of differential equations. The concept of population pharmacokinetics was also taken into consideration for further applications. The source code was written using R. For the convenience of users, two types of software were developed: a web-based simulator and a standalone-type application. The application was built in the JAVA language. We used the JAVA/R Interface library and the 'eval()' method from JAVA for the R/JAVA interface. The final product has an input window that includes fields for parameter values, dosing regimen, and population pharmacokinetics options. When a simulation is performed, the resulting drug concentration time course is shown in the output window. The simulation results are obtained within 1 minute even if the population pharmacokinetics option is selected and many parameters are considered, and the user can therefore quickly learn a variety of situations. Such software is an excellent candidate for development as an open tool intended for wide use in Korea. Pharmacokinetics experts will be able to use this tool to teach various audiences, including undergraduates.

• 한국문헌정보학회지
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• 제57권3호
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• pp.49-70
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• 2023

본고에서는 RDA 2020을 적용한 자원 기술 방안을 모색하고자, 원본 RDA와 RDA 2020을 비교분석하고, RDA 2020의 특징을 파악한 후, 구현형 중심으로 실재 자원의 목록기술시 RDA 2020 규칙을 적용하였다. RDA 2020을 이용해 구현형을 기술할 경우 고려할 사항은 다음과 같다. 첫째, 4가지 기술방식 중에서 해당 개체의 요소가 어떤 기술방식을 허용하고 있는지를 파악해야 한다. 둘째, 응용프로파일은 자원 기술을 위해 사용될 수 있는 요소를 명세하는 것으로 실질적인 자원 기술을 지원하고, 최소기술사항을 기반으로 효과적인 자원 기술을 위한 기능을 하므로 기관에서는 자관에 맞는 자체적인 응용프로파일을 작성해야 한다. 셋째, 응용프로파일을 기반으로 인코딩포맷에 맞는 템플릿 작성을 할 수 있도록 해야 한다. 본 연구는 목록사서들이 RDA 2020으로 자원을 기술할 때 RDA 2020 적용의 실질적인 도움을 줄 수 있을 것이다.

• 한국컴퓨터정보학회논문지
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• 제26권1호
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• pp.209-216
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• 2021

본 연구는 간호학생 실습교육을 위해 시나리오 기반 입원관리 가상현실(Scenario-based Admission Management Virtual Reality, 이하 SAM VR) 콘텐츠를 개발한 후 효과성을 검증하기 위해 수행되었다. 연구에 사용된 SAM VR 콘텐츠는 한국간호교육평가원에서 제시한 표준실무 절차에 따라 기어 VR과 스마트폰을 활용하여 10분 분량으로 개발되었다. SAM VR 콘텐츠 활용한 실습교육을 받은 실험군 30명은 실습교육 후에 학습몰입감, 학습자신감 및 학습만족도가 통계적으로 유의하게 상승했다(p<.001). 전통적인 방식으로 실습교육을 받은 대조군은 실습교육 후에 학습자신감은 상승하였으나(p<.005) 학습몰입감과 학습만족도에는 변화가 나타나지 않았다(p>.005). SAM VR 콘텐츠는 간호학생의 학습몰임감, 학습자신감과 학습만족도에 효과적인 실습교육 콘텐츠임이 검증되었다.

• 한국정보시스템학회지:정보시스템연구
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• 제29권4호
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• pp.25-43
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• 2020

Purpose The purpose of this study is to gradually increase the use of O2O services in recent years. It is a part of our daily lives, and accommodation/leisure is a part of the growing use of O2O services. Based on various prior research related to O2O service, the Commission intends to establish the justification and necessity of empirical research and to establish the relationship between O2O service impact factors and practical value, customer satisfaction and reuse intention. Design/methodology/approach This study analyzed what factors affected the intention of re-use of domestic accommodation O2O services. This research model was proposed based on the preceding research paper, and reliability, diversity, economics, leisure, safety and personalization were used as independent variables, practical value and customer satisfaction are parameters, and reuse intent is composed of dependent variables. Within the last year, users of domestic accommodation applications were selected as users who used domestic accommodation applications more than once, and data of domestic accommodation application users were analyzed using the SPSS 25.0 and AMOS 20.0 programs. Findings The results of this study show that economic efficiency, safety and personalization have significant effects on practical values in the relationship between O2O service impact factors and their impact on practical values. On the other hand, reliability, diversity and leisure were found to have no significant impact on practical values. In terms of O2O service impact factors and their impact on customer satisfaction, leisure and safety have significant effects on customer satisfaction. On the other hand, reliability, diversity, economics, and individualization have shown no significant impact on customer satisfaction. Practical values, parameters, customer satisfaction, and re-use intent, which are dependent variables, were also shown to have significant effects on practical values and customer satisfaction in the relationship.