간호정보의 처리, 분석, 관리 기술개발-인공신경망을 이용한 간호진단시스템 구현-

유지수,유황빈,박지원,고일선 대한의료정보학회 1998 Healthcare Informatics Research Vol.4 No.2

Water-assisted extrusion of polypropylene/clay nanocomposites

유지수,정우철,최종한,이상묵,이재욱 한국고분자학회 2014 한국고분자학회 학술대회 연구논문 초록집 Vol.2014 No.10

The Flexible Approach of Buffer Design in Transfer Line

유지수 國民大學校 經濟經營硏究所 1989 經商論叢 Vol.11 No.1

Effect of catalysts on the curing behavior of HTPB/IPDI urethane reaction

유지수,최종한,박재우,이상묵,한원희,정원복,한상근,김현수,이근득,심정섭,이재욱 한국고분자학회 2014 한국고분자학회 학술대회 연구논문 초록집 Vol.2014 No.4

치위생과 학생들의 스트레스 대응유형에 따른 무기력감 자각 수준 분석

유지수,최수영 대한치과위생학회 2010 대한치과위생학회지 Vol.12 No.3

SWAT-CUP을 이용한 SWAT 모형 검·보정 I: 목적함수에 따른 불확실성 분석

유지수,노준우,조영현 한국수자원학회 2020 한국수자원학회논문집 Vol.53 No.1

This study aims to quantify the uncertainty that can be induced by the objective function when calibrating SWAT parameters using SWAT-CUP. SWAT model was constructed to estimate runoff in Naesenong-cheon, which is the one of mid-watershed in Nakdong River basin, and then automatic calibration was performed using eight objective functions (R2, bR2, NS, MNS, KGE, PBIAS, RSR, and SSQR). The optimum parameter sets obtained from each objective function showed different ranges, and thus the corresponding hydrologic characteristics of simulated data were also derived differently. This is because each objective function is sensitive to specific hydrologic signatures and evaluates model performance in an unique way. In other words, one objective function might be sensitive to the residual of the extreme value, so that well produce the peak value, whereas ignores the average or low flow residuals. Therefore, the hydrological similarity between the simulated and measured values was evaluated in order to select the optimum objective function. The hydrologic signatures, which include not only the magnitude, but also the ratio of the inclining and declining time in hydrograph, were defined to consider the timing of the flow occurrence, the response of watershed, and the increasing and decreasing trend. The results of evaluation were quantified by scoring method, and hence the optimal objective functions for SWAT parameter calibration were determined as MNS (342.48) and SSQR (346.45) with the highest total scores. 본 연구는 SWAT-CUP을 이용한 SWAT 모형 매개변수 보정을 수행할 때, 목적함수로 인해 발생할 수 있는 불확실성을 정량화하는 것을 목표로 수행되었다. 먼저 낙동강 권역의 내성천 유역을 대상으로 유출량 산정을 위한 SWAT 모형을 구축한 후, SWAT-CUP을 이용하여 8개 목적함수(R2, bR2, NS, MNS, KGE, PBIAS, RSR 및 SSQR)를 기준으로 자동 보정을 수행하였다. 최종 매개변수는 목적함수에 따라 서로 다른 범위를 나타내었으며, 모의 결과의 수문특성 또한 상이하게 도출되는 것을 확인하였다. 이것은 각각의 목적함수가 특정 수문특성에 대하여 민감하게 반응하여 서로 다른 모의 성능을 평가하기 때문이다. 즉, 특정 목적함수는 극치값의 잔차에 대해 민감하게 반응하여 첨두값을 잘 모의하는 반면, 저유량 또는 평균유량에 대한 모의 성능이 떨어질 수 있다. 따라서 본 연구에서는 최적 목적함수를 선정하기 위해 8개의 목적함수에 따라 산정된 모의값과 관측값 사이의 수문학적 유사성을 평가하였다. 단순히 유량의 크기 비교 뿐 아니라 유량의 발생 시기, 유역의 반응 및 증가·감소 경향성을 함께 고려하기 위해 수문곡선의 증수부 및 감수부 유지시간 비율을 수문특성으로 정의하여 SWAT 모형을 평가하였으며, 평가 결과를 점수로 정량화하여 나타냈다. 그 결과 최종적으로 SWAT 매개변수 보정을 위한 최적 목적함수는 총점이 높은 MNS (342.48) 및 SSQR (346.45)로 선정되었다.

3D 모델링을 이용한 막 구조 방음터널의 소음 저감 효과 분석

유지수,노명현,정정호,이장복,장서일 한국소음진동공학회 2022 한국소음진동공학회 논문집 Vol.32 No.3

Soundproof tunnels block direct sound and minimize reflected sound, resulting in an excellent noise reduction effect. However, soundproof tunnels have not been thoroughly examined in terms of economic feasibility, stability, and usability. In particular, their high cost of installation and heavy weight are considered disadvantages. Therefore, it is essential to ensure economic feasibility and reduce the weight of soundproof tunnels. However, in South Korea, panels used in soundproof tunnels can be used only if they satisfy the required standards (sound transmission loss). Therefore, in this study, while the acoustic performance standards (sound transmission loss) for soundproofing panels were not met, a lighter and thinner membrane material was proposed for a soundproof tunnel, and its noise reduction effect, weight, and economic feasibility were examined. To ensure marketability, the noise reduction effect of the soundproof tunnel with the membrane structure was investigated using 3D modeling and real-scale experiments, and the findings were compared and analyzed with existing noise barriers.

가정간호업무 전산화를 위한 가정간호관리 시스템 개발

유지수,김조자,신혜선,최희재,Yoo, Ji-Soo,Kim, Cho-Ja,Shin, Hye-Sun,Choi, Hee-Jai 한국가정간호학회 2001 가정간호학회지 Vol.8 No.1

This study was conducted to develop a home care nursing management system based on the validated and useful data base found through literature review. The contents and structure according to a development procedure for a computer system were as follows. 1. A data base on home care nursing patients was accumulated by putting data respectively in both steps and fields - from selection criteria. basic information. prescription. plan of home visits. to application of nursing process. 2. Accumulated data was classified and designed to search by basic information. drug/injection prescription. examination prescription, treatment prescription. supply. and a record of the nursing process. 3. Various forms of retrieval including graphs were elaborated in terms of diagnosis and intervention aspects.

구조화된 노래부르기 중재가 학령기 자폐범주성장애 아동의 자발적 의사소통 행동에 미치는 효과

유지수,김수지 한국특수아동학회 2019 특수아동교육연구 Vol.21 No.3

Purpose: The purpose of this study was to examine the effects of structured singing interventions for children with autism spectrum disorders, and to compare the effectiveness and the behavioral changes according to the intervention. Method: The experiment was conducted in a single subject study method including baseline, intervention, and maintenance interval. The baseline period lasted for at least 3 sessions. The intervention was conducted in three stages in one session: largely monosyllabic centered vocal inducement activities, verb-centered singing activities, and interaction context inducement activities. Results: The results demonstrated that spontaneous communication response of the subjects after the structured singing intervention was increased and the incidence of the onset of speech was increased. In addition, the observed changes of behavior showed improvement of confidence in speech and pronouncing, as well as a reduction of aggressive behaviors. Conclusion: This study suggests that the use of musical structure for the improvement of language skills of children with severe autistic spectrum disorders, and the structured approach to singing intervention need to be studied continuously. 연구목적: 본 연구는 구조화된 노래부르기 중재가 중증의 학령기 자폐범주성장애 아동의 자발적 의사소통 행동에 어떤 영향을 미치는 알아보고자 하였다. 연구방법: 중재의 효과성을 알아보기 위해 단일대상 연구 방법 중 하나인 대상자간 중다기초선 설계로 진행하였으며, 자폐범주성장애 아동 5명을 선정하여 순차적으로 중재를 실시하였다. 본 연구에서 진행된 구조화된 노래부르기 중재는 중증 자폐범주성장애 아동이 실제적인 의사소통 기술과 의사소통 시도에 개입할 수 있도록 구성되었다. 단음절 중심의 노래 부르기 활동을 통한 무의미 발화, 동사 중심의 노래 부르기 활동을 통한 의미 있는 단어의 발화, 상호적 맥락에서의 요구표현 유도 활동을 통한 요구표현 발화를 단계적으로 유도하며 각 단계에 따라 노래 부르기 형태 및 노래 과제가 구조적으로 제공되는 중재로 총 3단계로 진행되었다. 자료수집은 반응발화와 시작발화로 구분하였으며 반응 발화는 지시사건 기록법으로, 시작발화는 등간 기록법으로 측정하였다. 연구결과: 모든 대상자의 반응발화와 시작발화 발생률이 증가하는 양상을 보이며 추가적으로 관찰된 행동변화로는 발성 및 발화에 대한 자신감 향상, 부정적인 의사소통 방식이 언어적 의사소통 방식으로 대체됨으로 공격적인 행동의 감소 등이 나타났다. 결론: 이상의 결과를 통해 구조화된 노래부르기 중재가 자폐스펙트럼 장애 아동의 자발적 의사소통 행동 증가에 효과적임을 확인 할 수 있었다.

의학교육연구의 질을 향상시키기 위한 '연구보고의 표준' 의 활용

유지수,Yoo, Ji-Soo 연세대학교 의과대학 2008 의학교육논단 Vol.10 No.2

Objectives: Through using of the strong research method like a Randomized Controlled Trial: RCT, we have to heighten quality of Medical Education study. I'd like to introduce "CONSORT", which stands for Consolidated Standards of Reporting Trials. Contents: Preventive Service Task Force(200l) in USA proposed Levels of evidence for enlarging evidence-based Practice: EBP. And the CONSORT was introduced, which encompasses various initiatives developed by the CONSORT Group to alleviate the problems arising from inadequate reporting of randomized controlled trials (RCTs). the CONSORT has 13 guides like these: 1. How participants were allocated to interventions 2. Scientific background and explanation of rationale 3. Eligibility criteria for participants. The settings and locations where the data were collected. 4. Precise details of the interventions intended for each group and how and when they were actually administered 5. Specific objectives and hypotheses 6. Clearly defined primary and secondary outcome measures, When applicable. any methods to enhance the quality of measurements (e.g., multiple observations, training of assessors) 7. How sample size was determined. When applicable, explanation of any interim analyses and stopping rules 8. Method used to generate the random allocation sequence, Details of any restriction [of randomization] 9. Method used to implement the random allocation sequence 10. Who generated the allocation sequence, who enrolled participants. and who assigned participants to their groups 11. Whether or not participants, those administering the interventions, and those assessing the outcomes were blinded to group assignment. If done, how the success of blinding was evaluated 12. Statistical methods used to compare groups for primary outcome(s), Methods for additional analyses, such as subgroup analyses and adjusted analyses 13. Flow of participants through each stage (a diagram is strongly recommended) Specifically, for each group report the numbers of participants randomly assigned. receiving intended treatment, completing the study protocol. and analyzed for the primary outcome. Results and Conclusion: Randomized Controlled Trial: RCT guided of CONSORT will contribute to do stronger evidence-based medical studies.