COVID-19가 유발한 사회재난이 소비자물가지수에 미치는 영향: 문화체육관광분야를 중점으로

이다혜,장인홍,Lee, Da-Hye,Chang, In-Hong 조선대학교 기초과학연구원 2021 조선자연과학논문집 Vol.14 No.3

The outbreak of COVID-19 has had a huge impact on human life. The World Bank group (WBG) has stated that 2020 is the worst year since World War II for economic growth. An epidemic of an infectious disease such as COVID-19 is classified as a "social disaster" by law. The social disaster caused by COVID-19 puts certain industries, occupations and vulnerable groups at risk of exclusion and isolation. This paper intends to examine the fluctuations in the consumer price index in the cultural, sports and tourism sector before and after the onset of COVID-19. In addition, it predicts the consumer price index by sector until December 2021 and reveals its implications.

비틀어진 형상(Twisted) 고층 구조물의 평면 회전 각도별 동적 응답 분석

이다혜,김현수,강주원,Lee, Da-Hye,Kim, Hyun-Su,Kang, Joo-Won 한국공간구조학회 2021 한국공간구조학회지 Vol.21 No.1

In this paper, the dynamic response was analyzed by performing linear dynamic analysis using historic earthquake loads on twisted-shaped structures and fixed structure among free-form high-rise structures with atypical elevation shape following prior studies. In addition, the dynamic characteristics of the analysis models according to the plane rotation angle of the twisted structure were compared and analyzed. As a result of the analysis, as the plane rotation angle of the twisted structure increased, the interlayer deformation rate increased in the high-rise part of 50th floors or more. The story shear force and the story absolute acceleration were similar in the entire structure. In the case of the story shear force, the response of the twisted shape model was rather reduced in the middle part. As a result of analyzing the dynamic response, the vulnerable layer where the response amplification of the twisted structure occurs was found to be 31st story.

비틀어진 형상(Twisted)을 가지는 고층 구조물의 역학적 특성 분석

이다혜,김현수,강주원,Lee, Da-Hye,Kim, Hyun-Su,Kang, Joo-Won 한국공간구조학회 2020 한국공간구조학회지 Vol.20 No.4

In this study, structural characteristics were analyzed by combining gravity load and lateral loads such as seismic loads through static analysis of example structures, and the static characteristics of the twisted structure according to the plane rotation angle were also analyzed. Example structures were selected as regular structure, and twisted structures; 1.0, 2.0, and 3.0 degree angle of rotation per story, and static analysis was performed by the load combination case 1 and case 2. As a result the story drift ratio of the twisted-shaped structure also increased as the plane rotation angle per story increased. The eccentricity according to the load combination was the highest in the lower stories of all analysis models, and the eccentricity was found to be larger as the rotation angle decreased. The twisted-shaped structure was more responsible for the bending moment of the column than the regular structure, and the vertical member axial force of all analysis models was almost similar.

세 가지 평면 형상에 따른 비틀림 비정형 빌딩구조물의 지진응답 분석

이다혜,김현수,강주원,Lee, Da-Hye,Kim, Hyun-Su,Kang, Joo-Won 한국공간구조학회 2021 한국공간구조학회지 Vol.21 No.4

In this paper, a twisted shape structure with an elevation form favorable to the resistance of vibration caused by wind loads is selected from among the forms of high-rise buildings. The analytical model is a square, triangular, and hexagonal plane with a plane rotation angle of one degree from 0 to 3 degrees per each story. As a result of the analysis, as the twist angle increased, story drift ratio is increased. Responses with different eccentricity rates were shown by analytical models. Therefore planar shapes designed symmetrically to the horizontal axis of X and Y are considered advantageous for eccentricity and torsion deformation. In the case of the bending moment of the column, the response was amplified in the column supporting the base floor, the roof floor, the floor in which the cross-section of the vertical member changes, and the floor having the same number of nodes as the base floor. Finally, the axial force response of the column is determined to be absolutely affected by the gravity load compared to the lateral load.

대학 교양무용 참여에 따른 자기효능감 및 전공몰입 변화

이다혜 ( Da-hye Lee ),문영 ( Young Moon ) 대한무용학회 2018 대한무용학회논문집 Vol.76 No.2

This study empirically explored changes in self-efficiency and major-commitment according to participation in the college liberal arts dance program to promote the role of dance education corresponding to changes in the paradigm and demands of the times in college liberal education that the students could adapt themselves to various occupational environments as the members of society in the future.

작업치료사에서 임상경력에 따른 상담 및 평가 실무역량에 대한 인식 차이

이다혜(Da-Hye Lee) 한국인지운동치료협회 2020 한국신경인지재활치료학회지 Vol.12 No.1

목적: 본 연구의 목적은 설문을 통하여 작업치료사 임상경력에 따른 상담 및 평가 실무역량에 대한 인식의 차이를알아보는 것이었다. 연구대상자는 성인 환자를 대상으로 치료하는 임상경력3년 미만의 초임작업치료사와 임상경력 5년 이상의 선임작업치료사 총 223명이었다. 방법: 설문지는 일반적 특성 5문항과 상담 및 평가 실무역량 8문항으로 구성되었다. 실무역량에 대한 인식 수준은 5점 척도로 조사되었으며, 초임작업치료사는 자신이 평가하였으며, 선임작업치료사는 초임 작업치료사를 평가하였다. 결과: 임상경력에 따른 실무역량 인식에 있어서 초임작업치료사가 선임작업치료사 보다 상지평가, 인지평가 항목에서 실무역량에 차이를 보이지 않았다. 하지만, 초임작업치료사는 임상관찰, 가동범위검사, 근력검사, 감각검사, ADL 검사, 삼킴평가 항목에서 실무역량이 유의하게 낮게 나타났다. 결론: 초임작업치료사는 실무역량을 선임작업치료사로부터 인정받는 수준으로 숙련되는데 3년 이상 필요하다. 따라서, 작업치료사 양성교육과정에서 실무역량을 향상시키는 교육의 질적 개선이 필요함을 제안한다. The purpose of this study was to examine the difference in perception of practical competency in counseling and evaluation according to the clinical experience of occupational therapists through a questionnaire. The questionnaire was composed of 5 questions of general characteristics and 8 questions of practical competency in counseling and evaluation. The awareness level of practical competency was surveyed on a 5-point scale, where the novice occupational therapists evaluated themselves, and the senior occupational therapists evaluated the novice occupational therapists. In awareness of actual competency based on clinical experience, the novice occupational therapists showed no difference in actual competency in the upper extremity function evaluation and cognitive evaluation items compared to the senior occupational therapists. However, the novice occupational therapists showed significantly lower practical competency in clinical observation, range of motion test, muscle strength test, sensory test, ADL test, and swallowing function test. In conclusion, a novice occupational therapist needs more than three years to be skilled at a level recognized by a senior occupational therapist. Therefore, the study suggests that the quality of education should be improved in order to improve actual competency in the training programs for occupational therapists.

초임작업치료사와 선임작업치료사에서 인지영역의 핵심실무역량에 대한 인식 수준 비교

이다혜(Da-Hye Lee) 한국인지운동치료협회 2019 한국신경인지재활치료학회지 Vol.11 No.1

This study was to examine the comprehension level of core practice competency of cognitive domain in first-time occupational therapist and senior occupational therapist. This study conducted questionnaire survey targeting initial occupational therapists with less than 3 years of clinical experience and senior occupational therapists with more than 5 years of clinical experience for adult patients working in domestic medical institutions and the data collected from 223 therapists were used for analysis. The analysis result showed that, in the distribution of initial occupational therapists group and senior occupational therapists group according to general characteristics of the study participants, there was a significant difference in such items as age, level of education, type of workplace, and clinical experience. The differences in recognition level of the initial occupational therapist group and the senior occupational therapist group, the level of the core practice competency in occupational therapy of the initial occupational therapists evaluated by the senior occupational therapist group showed statistically lower results in all items. Therefore, there is a discordance between the core practice competency acquired through university education and the core practice competency required in the clinical field. It is necessary to suggest the right direction of clinical education in clinical fields.

사회과학분야 : 대학생의 교양무용 참여에 따른 대인관계 변화

이다혜 ( Da Hye Lee ),나안숙 ( An Sook Na ) 한국무용과학회 2014 한국무용과학회지 Vol.31 No.3

본 연구는 대학 교양무용 참여에 따른 학습자들의 대인관계 변화를 알아보기 위한 연구로서, 교양무용 참여 전·후에 따른 대인관계 하위요인변화 차이와 교양무용 특성에 따른 대인관계 하위요인 변화에 차이를 알아보았다. 대학 교양무용 참여에 따른 대인관계 변화를 검증하고자 조사집단을 200명을 표집하여 수업 실시 전·후 대인관계의 변화에 대한 검사를 실시하여 다음과 같은 결론을 도출 하였다. 첫째, 대학 교양무용 참여에 따른 대인관계 변화를 사전-사후검사를 통해 살펴본 결과 교양무용 참여는 대인관계에 향상에 도움을 주는 것으로 나타났다. 둘째, 대학 교양무용 특성별 대인관계 변화를 살펴본 결과, 사전-사후 대인관계 평균점수 향상도는 발레와 과학이야기>춤 감상 및 체험>몸으로 표현하기>춤으로 문화읽기>공연줍기 순으로 나타났다. 위 결론을 종합하면 다양한 대학의 교양교육 중 교양무용을 통한 예술교육은 대학생의 대인관계 긍정적인 영향을 주는 것으로 대학 교양교육의 목적인 전인적 인간양성에 기여할 것으로 판단된다. This study investigate the changes in interpersonal relationship according to the liberal arts dance courses at college reflecting the totality of dance. By presenting empirical data on college liberal arts dance courses and interpersonal relationship, this study aims to develop liberal arts dance courses, provide basic materials of the courses, and further contribute to the revitalization of college liberal arts dance courses. For this study, 200 students were selected, who were taking liberal arts dance courses at K. University located in Seoul. A preliminary survey was carried out on the subjects, 16-session liberal arts dance courses were carried out, and changes in their interpersonal relationship were measured through a post-test. As a result of a comparison of mean of changes of the sub-factors in pre-to-post interpersonal relationship at the level of descriptive statistics and a paired samples t-test, the following conclusions could be drawn. First, as a result of an inquiry into changes in each sub-factor of interpersonal relationship according to participation in college liberal arts dance courses, the sub-factors improved in the order of cognitive factor, emotional factor and behavioral factor. Second, as a result of a comparison of interpersonal relationship according to each characteristic of liberal arts dance courses through pre- and post-testing, their interpersonal relationship improved in the order of practice class and theory class. Regarding the changes of the sub-factors of their interpersonal relationship by more concrete characteristics of liberal arts dance courses, the mean scores of the sub-factors in pre-to-post interpersonal relationship improved in the following order: Ballet & Science > Appreciation of Dance Masterpiece > Expression by Body > Reading Culture through Dance > Amusing of Performing Arts.

이온 이동에 적합한 아크릴고분자 박막의 조성과 수소이온, 수산화이온, 구리이온의 선택적 검출

이다혜(Da Hye Lee),우희정(Hee Jung Woo),도정윤(Jung Yun Do) 한국고분자학회 2014 폴리머 Vol.38 No.6

광경화 아크릴고분자 필름에서 이온이동에 관한 연구를 하였다. 고분자에 결합된 아민기와 카르복실산 작용기의 함량을 조절하여 수소이온과 수산화이온의 이동에 적합한 필름을 제조하였다. 수소이온 이동 검출을 위해 pmethylred(PMR) 유도체를 사용하였고 수산화이온 검출을 위해 페놀프탈레인 유도체를 합성하여 각각 고분자에 도입하였다. 수소이온의 이동은 아민기의 함량이 많을수록 빠르게 진행되었고 수산화이온은 카르복실산의 함량이 높을수록 빠르게 이동하였다. 수소이온 이동은 필름표면과 내부로 빠르게 진행하였고 PMR 포함 필름의 흡수스펙트럼을 통해 관찰되었다. 산 용액에 감응하는 필름을 사용하여 색상변화의 가역성을 관찰하였고 연속 50회를 실시하는동안 정확히 재현되었다. 구리(II) 이온은 카르복실산 작용기의 함량이 높은 필름에서 빠르게 이동하였다. 로다민이도입된 필름에서 구리이온의 배위로 로다민의 고리열림 반응이 진행되었고 광흡수 및 발광특성 측정을 통해 구리이온의 이동을 추적하였다. Ion diffusion and chemical binding to acrylic polymer were investigated in a solid film. The composition ofacrylic monomers containing amino group and carboxylic acid was adjusted for rapid ion migration in the film. p-Methylred(PMR) and phenolphthalein derivatives were optically sensitive to the concentration of proton and hydroxyl anion,respectively and verified the ion migration through the film layers. A rapid proton migration was observed in the filmof a high amino content. On the other hand, OH- migration occurred rapidly in a high content of carboxylic acid group. The proton migration occurred through the internal layer as well as surface layer of a film and was reversible during 50repetition examination. Copper(II) ion migration was examined with a Rhodamine-containing polymer film. The lightabsorption and emission spectra of a Rhodamine-Cu complex showed the key contribution of carboxylic acid group tothe Cu(II) migration in a film.

포장재 조건에 따른 365 nm UV-LED 조사의 Bacillus subtilis 생육 억제 효과

이다혜 ( Da-hye Lee ),정소미 ( So-mi Jeong ),쉬시아오통 ( Xiaotong Xu ),김꽃봉우리 ( Koth-bong-woo-ri Kim ),안동현 ( Dong-hyun Ahn ) 한국미생물생명공학회(구 한국산업미생물학회) 2019 한국미생물·생명공학회지 Vol.47 No.3

본 연구에서는 그람 양성의 호기성 유포자 세균 중 자연계에 널리 분포되어 식품에 문제를 일으키는 대표적인 균인 B. subtilis를 대상으로 365 nm UV-LED의 생육 억제 효과를 입증하였다. 또한 365 nm UV-LED 조사 시, 식품 포장재로 흔히 사용되고 있는 유리, LLD-PE, Nylon/LDPE 및 PS 등의 포장 조건에 따른 B. subtilis 생육 억제 효과를 확인하였다. 그 결과, B. subtilis의 생육 억제 효과가 가장 뛰어난 재질은 Nylon/LDPE와 LLD-PE로 확인되었고, 대조구의 생존율인 -log 5 값과 비교하여 각각의 생존율은 약 -log 2.5-2.9, -log 2.58-3.61로 나타났다. 이 때 재질의 두께가 미생물의 생육에 미치는 영향은 미미한 것으로 관찰되었고, 포장 재질에 따라 365 nm UV-LED 투과력이 다르다는 것을 확인할 수 있었다. 통상적으로 log 3 이상 생균수가 감소하면 99.9% 살균효과가 있는 것으로 나타낼 수 있는데, 본 연구를 통해 365 nm UV-LED가 흔히 사용되고 있는 식품 포장재를 투과하여 균의 생육 억제에 영향을 줄 수 있음을 확인 하였다. 이러한 결과를 통해 365 nm UV-LED의 사용이 식품보존과 식품산업 분야의 응용기술로써 잠재력이 있음을 시사하는 바이다. The use of ultraviolet (UV) spectroscopy for foods is known to have a microbial inhibitory effect. UV-A having a longer wavelength than UV-C can be used for continuous or intermittent UV irradiation of food stored in containers or packages. Because UV-LED can be used effectively at a low price, this study reported the effect of UV-A 365 nm-LED on inhibiting Bacillus subtilis in accordance with the packaging conditions employed in daily use. The packaging materials were linear low-density polyethylene (LLD-PE), nylon/low density polyethylene (LDPE), polystyrene, and glass. When all packaging materials were treated with 365 nm UV-LED, B. subtilis was observed to remain inactive for 30-60 min. Further, compared with the control (-log 5), the survival rate of B. subtilis was -log 2.0-2.5 for nylon/LDPE and -log 2.58-3.61 for LLDPE. These packaging materials showed an excellent inhibitory effect regardless of their thickness. Typically, a decrease in the viable cell count of more than 3 log indicates a 99.9% bactericidal effect. These results suggest that 365 nm UV-LED permeated the packaging material and inhibited bacterial growth.