플로팅아일랜드 인공섬 진수를 위한 Structural Health Monitoring

김지영,김주연,김대영,Kim, Ji-Young,Kim, Ju-Yeon,Kim, Dae-Young 한국공간구조학회 2010 한국공간구조학회지 Vol.10 No.2

실측 및 해석모델에 의한 철근콘크리트조 주상복합건물의 모드특성

김지영,김주연,김미진,유은종,김대영,Kim, Ji-Young,Kim, Ju-Yeon,Kim, Mi-Jin,Yu, Eun-Jong,Kim, Dae-Young 한국전산구조공학회 2009 한국전산구조공학회논문집 Vol.22 No.3

건축구조물의 고유진동수는 지진하중 혹은 풍하중의 크기를 결정하고 바람에 의한 진동을 예측하여 사용성조건을 검토하기 위해 반드시 필요하다. 본 논문에서는 철근콘크리트조 주상복합건물을 대상으로 현장계측을 통해 얻은 데이터와 시스템 식별기법을 사용하여 얻은 고유진동수와 모드형상을 해석모델에 의한 결과와 비교하였다. 해석모델은 실무에 일반적으로 사용되어지는 PC기반의 유한요소해석 프로그램을 사용하여 작성하였으며, 골조만을 모델링한 기본모델로부터 계측당시 구조물의 강성에 영향을 미칠 것으로 판단되는 요소들을 단계적으로 포함시켜 가면서 그 결과를 계측치에서 얻은 값과 비교하였다. 기본모델로부터 수정된 사항은 1) 콘크리트 배합강도를 고려한 탄성계수의 보정, 2) 바닥 슬래브의 휨강성, 3) 비구조벽이다. 이와 같은 요소를 모두 포함한 해석모델은 실제 계측치로부터 얻은 고유진동수, 모드형상과 가장 유사한 결과를 나타내었다. Natural frequency is a key parameter to determine the seismic and wind loading of tall flexible structures, and to assess the wind-induced vibration for serviceability check. In this study, natural frequencies and associated mode shapes were obtained from measured acceleration data and system identification technique. Subsequently, finite element(FE) models for a tall reinforced concrete buildings were built using a popular PC-based finite element analysis program and calibrated to match their natural frequencies and mode shapes to actual values. The calibration of the FE model included: 1) compensation of modulus of elasticity considering the mix design strength, 2) flexural stiffness of floor slabs, and 3) major non-structural components such as plain concrete walls. Natural frequencies and mode shapes from the final FE model showed best agreement with the measured values.

어머니와의 자유놀이에서 나타난 청각장애 아동과 건청 아동의 의사소통의도 특성 비교

김지영(Ji Young Kim),안서지(Seo Ji Ahn),박현주(Hyun Ju Park) 한국언어치료학회 2017 言語治療硏究 Vol.26 No.1

Purpose: The purpose of this study is to provide reference data for parents on communicative relationships and early intervention of hearing impaired children during free play time with their mothers. Three groups of participants took part in the study; the first group of hearing impaired, the second group of normal hearing people with the same chronological age, and the third group with the same language age. Methods: The participants spontaneous speech was analyzed through Hong & Kim (2001)’s and Van Balkom et al. (2010)’s framework. We also examined internal factors that influenced the frequency of communicative intention for the hearing impaired children. Results: There were high frequencies in the area of response, comments, and statements in the group of the hearing impaired. The two groups with the same language and chronological age showed a high frequency of common sequences with the hearing impaired group by Hong & Kim’s frame. According to the analysis of Van Balkom et al. (2010), in the hearing impaired group, verbal initiation, clarification, or incoherent response was shown frequently. Internal factors that caused differences were types of assist devices, ages of receiving CI surgery, age of wearing hearing aids, and inner ear abnormities. Conclusions: Hearing impaired children who were diagnosis for less than 2 years and who received CI or hearing aids showed similar communicative development to hearing children in terms of frequency level. However, hearing impaired children still have complementary communicative strategies that are uncommon in hearing children.

화학 I 교과서의 "물"단원에 사용된 어휘의 적절성 분석

김지영,조미주,구민아,박종석,Kim, Ji-Young,Cho, Mi-Ju,Goo, Mi-Na,Park, Jong-Seok 대한화학회 2010 대한화학회지 Vol.54 No.4

이 연구는 제 7차 교육과정 화학 I 교과서의 "물" 단원에 사용된 어휘들을 등급별로 분류하고, 그 적절성을 알아보는데 목적이 있다. 이를 위해 화학 I 8종 교과서의 "물" 단원에 사용된 어휘들을 표준국어대사전을 기준으로 한 SWA 프로그램을 이용하여 과학 전문어와 비과학 전문어로 나누고 그 등급을 살펴보았다. 그리고 어휘들이 11학년 학생들의 어휘 발달 수준에 적절한지의 여부를 조사하였다. 연구 결과, 과학 전문어의 등급 분포는 1등급에서 3등급까지 증가하다가 5등급까지 다시 감소하는 경향을 보였으며, 등급 외 어휘가 평균 37%로 가장 큰 비율을 나타냈다. 비과학 전문어는 1등급 어휘가 압도적으로 많았으며 5등급으로 갈수록 감소하였고, 5등급과 등급 외 어휘는 평균 18% 사용 되었다. 교과서에 사용된 부적절한 어휘는 과학전문어의 경우 5등급 6어, 등급 외 82어이며, 비과학 전문어는 5등급 53어, 등급 외 145어로 조사되었다. 그러므로 전체적인 교과서 진술 방식은 타당하나 11학년 학생들의 어휘 수준에 적절하지 못한 어휘가 상당수 있어 그 사용을 최소한으로 하고 1~4등급의 어휘로 바꾸어 진술하여 학생들의 이해 수준에 맞는 적절한 어휘로 교과서를 집필해야 함을 제안한다. This study analyzed the vocabulary level in the 'Water' unit of chemistry I textbook. It also analyzed its relevance to the 11th graders' vocabulary level. The main tool for analyzing vocabulary level was SWA(Science Word Analysis) program which was referenced the Standard Korean Dictionary and Graduated Vocabulary of Korean Language Education. The results in this study turned out to be as follows: The distribution of scientific vocabulary level increased from Level-1 to Level-3 and showed a tendency to decrease from Level-3 until Level-5. The average percentage of Out of level is the largest as 37%. The highest percentage of non-scientific vocabulary was Level-1. The distribution of non-scientific vocabulary level decreased progressively. The Level-5 and Out of level are used 18% averagely. So, there are 6 vocabularies of Level-5 and 82 vocabularies of extra-level inappropriate in scientific vocabularies. And there are 53 vocabularies of Level-5 and 145 vocabularies of Out of level inappropriate in non-scientific vocabularies. Therefore, the overall state of textbooks for grade 11 students are reasonable. But there are a great many vocabularies inappropriate for them. Those should be used minimum, and to be changed to the 1-4 of level vocabulary as stated in the student's level of understanding of appropriate vocabulary.

인공신경망을 이용한 구조안정성 평가 적용사례

김지영(Kim, Ji Young),김주연(Kim, Ju Yeon),박재근(Park, Jae Keun),김대영(Kim, Dae Young) 한국구조물진단유지관리학회 2010 한국구조물진단학회 학술발표회논문집 Vol.2010 No.2

Currently, the Structural Health Monitoring (SHM) system is being frequently adopted at high-rise buildings, long span bridges, etc. for monitoring of the structural performances during their life spans. One of main purposes of the SHM system can be regarded to evaluate damage locations and quantities. The Artificial Neural Network (ANN) is one of practical solutions for the damage evaluations because it can provide information about damage of the structure instantly. In this research, a method of the damage evaluation using the ANN was proposed and verified by using a 3-story RC mock-up structure. An application result is also introduced in this paper.

남성들의 피부인식과 화장품 사용실태에 관한 연구

김지영(Ji-Young Kim),김주덕(Ju-Duck Kim) 한국화장품미용학회 2015 한국화장품미용학회지 Vol.5 No.2

Appearance is an important factor maintaining the relationships in social life. Well taking care of male’s appearance improves the individual’s competitiveness and makes individual look more reliable. The middle aged males are living in a society where they compete with young males and that has changed their awareness of their image and appearance. Increasing number of middle aged males are selecting and using cosmetics that are suitable for their skins and striving to manage their appearance to look healthier and younger. Due to the effect of such phenomenon, the cosmetics and relevant industries are implementing diverse marketing on males. This study aims to analyze the male’s awareness on their skin, examine the present conditions of cosmetics purchasing behaviors and usage, and provide base line data which may be utilized for planning new product and establishing distinctive marketing strategy.

팽화미분 첨가에 따른 타락죽의 pH, 수분, 고형분, 총당, amylose, 점도, 퍼짐성 및 색도 변화

김지영 ( Ji Young Kim ),김주봉 ( Ju Bong Kim ),이영현 ( Young Hyoun Yi ) 한국산업식품공학회 2009 산업 식품공학 Vol.13 No.2

The pH, moisture, solid, total sugar, amylose, viscosity, line spread and color of Tarakjuk containing puffed rice powder were investigated. The pH of rice Tarakjuk was higher than that of puffed rice powder. Also, samples with whole milk powder were higher than fresh milk (p<0.05). The highest moisture contents, 84.56% was observed in rice Tarakjuk prepared with whole milk powder, while lowest 81.04% in puffed rice powder sample with fresh milk (p<0.05). Samples with lower moisture contents resulted in greater solid contents (p<0.05). Higher total sugar contents were noticed in cooked samples than uncooked ones, however no differences were found among cooked ones (p<0.05). Amylose contents of puffed rice powder Tarakjuk were higher than rice sample (p<0.05). The rice Tarakjuk showed higher viscosity and lower spreadability (p<0.05). Higher L value was observed in rice. Highest a values were shown in puffed rice powder and lowest value in rice with fresh milk (p<0.05). The b value tended to be similar to a value.

보육교사의 전문성 발달과 효능감, 역할 수행 간의 관계

김지영 ( Ji Young Kim ),윤진주 ( Jin Ju Youn ) 한국아동교육학회 2011 아동교육 Vol.20 No.4

본 연구에서는 보육교사의 전문성 발달과 효능감, 역할 수행 간의 관계를 증명하고, 보육교사의 전문성 발달에 영향을 미치는 변인을 검증하였다. 연구대상은 전라북도와 광주광역시의 보육시설에 근무하는 보육교사 203명이다. 연구도구는 선행연구(김경애, 2001; 백은주, 조부경, 2004; 현정환 2003)를 참고하여 연구목적에 적절하게 수정한 질문지를 사용하였다. 수집된 자료는 빈도분석, 신뢰도 검증, Pearson의 적률상관분석, stepwise 방식에 의한 중다회귀분석을 실시하였다. 연구결과를 제시하면 다음과 같다. 셋째, 보육교사의 전문성 발달과 효능감 간에는 정적인 관련성이 있었다. 둘째, 보육교사의 전문성 발달과 역할 수행 간에는 정적인 관련성이 있었다. 셋째, 보육교사의 전문성 발달에 가장 큰 영향력을 미치는 변인은 ``보육 효능감``이었고, 마음으로 ``학습 촉진자 역할``, ``일반 효능감``, ``지역사회 관계유지 역할``, ``생활 지도자 역할`` 순으로 나타났다. 이러한 결과를 통해 보육교사의 전문성 발달을 위해서는 보육교사의 효능감 향상이 무엇보다 중요하다는 시사점을 얻을 수 있다. This study examined the relationship between childcare teachers` professional development and their efficacy and role performance, and investigated the variables affecting childcare teachers` professional development. Employed as the subjects of this study were 203 teachers working for childcare institutions in Jeollabuk-do and Gwangiu Metropolitan City. The research tool was prepared by revising tools used in previous studies(Kim Gyeong-ae, 2001; Baek Eun-ju, Jo Bu-gyeong, 2004; Hyun Jeong-hwan, 2003) to meet the purpose of this study. The collected data underwent frequency analysis, reliability assessment, Pearson`s correlation analysis, and stepwise multiple regression analysis. The findings of this study can be summed up as follows: First, there was a positive relationship between the childcare teachers` professional development and efficacy. Second, there was also a positive relationship between the teachers` professional development and role performance. Third, the variable that affected the childcare teachers` professional development the most was ``childcare efficacy``, which was followed by ``learning facilitator role``, ``general efficacy``, ``community relations maintenance role`` and ``guidance role`` in decreasing order of importance. These results indicate that improvement in the childcare teachers` efficacy is more important than anything else in promoting their professional development.

브랜드 디자인 마케팅을 위한 공간유형과 체험요소 분석

김지영(Ji Young Kim),김주연(Ju Yeon Kim) 경희대학교 산학협력단 예술디자인연구원 2014 예술· 디자인학연구 Vol.17 No.1

농산물 중 Fluxametamid 분석법 개발

김지영 ( Ji Young Kim ),김효진 ( Hyochin Kim ),최윤주 ( Youn Ju Choi ),송지영 ( Ji Young Song ),강혜라 ( Hera Kang ),도정아 ( Jung Ah Do ),정형욱 ( Hyung-wook Chung ),이규식 ( Gyu Seek Rhee ),이순호 ( Soon Ho Lee ) 한국환경농학회 2017 한국환경농학회 학술대회집 Vol.2017 No.-

Fluxametamid (IUPAC name: 4-[5-(3, 5-dichlorophenyl)-5-(trifluoromethyl)- 4, 5-dihydro-1, 2-oxazol-3-yl]-N-[(methoxyimino)methyl]-2-methylbenzamide) is isoxazoline insecticide and acarcide. An analytical method for the determination of fluxametamid residue in foods was developed as Ministry of Food and Drug Safety (MFDS) method. After extracting with acetonitrile, samples were partitioned and concentrated with dichloromethane. To remove the interferences, silica SPE cartridge was performed before LC-MS/MS (Liquid Chromatography-Tandem Mass Spectrometry) analysis with C18 column. Five agricultural commodities (mandarin, potato, soybean, brown rice, and hot pepper) were used as group representative to verify. The linear matrix-matched calibration curve were confirmed (coefficient of determination > 0.99 with calibration range 0.01-2.5 mg/kg). Fluxametamid from sample with recoveris range from 82.24~115.27%. The precision were also shown less than 9.54% for all five samples. These spiked recoveries fall well within the recommened mean values in CODEX guideline for residue analysis (CAC/GL 40). Thus this method successfully processes food samples for Fluxametamid utilizing LC-MS/MS method.