뇌성마비 환아의 임상적 고찰

최지영(J.Y.Choi),이건수(K.S.Rhee) 대한소아신경학회 1995 대한소아신경학회지 Vol.3 No.1

Cerebral palsy is a nonprogressive brain disorder occuring during gestation. parturition or neonatal period with resultant abnormality of movement or posture or other deficits. Recently the early diagnosis and early treatment has been emphasized in management of cerebral palsy. We studied 88 cerebral palsied children in Chung Nam National University Hospital and analyzed neuromotor type, age, sex, clinical manifestation, risk factor, EEG, brain CT finding and MRI findings. The results were as follows: 1. Most age distribution of children was from 0 to 5. male to female ratio was 2.5:1. 2. The most common pattern of cerebral palsy was spastic diplegic type 3. The clinical manifestatin of cerebral palsy in order was developmental delay, gait disturbance, seizure, strabismus, mental retardation 4. Frequency of possible risk factors of cerebral palsy in order was 31% of prematurity. 28% of asphyxia, 8% of cerebral hemorrhage, etc. 5. There was a correlation between the seizure and abnormal EEG findings. 6. Abnormal finding of brain CT and MRI were 53% and 76% respectively, cerebral atrophy and hydrocephalus were the most common abnormal indings.

고분자전해질막 연료전지의 공기유로 내에서의 다중 액적 거동에 대한 수치적 연구

최지영(J.Y. Choi),손기헌(G. Son) 한국전산유체공학회 2009 한국전산유체공학회 학술대회논문집 Vol.2009 No.4

The water droplet motion and the interaction between the droplets in a PEMFC air flow channel with multiple pores, through which water emerges, is studied numerically by solving the equations governing the conservation of mass and momentum. The liquid-gas interface is tracked by a level set method which is based on a sharp-interface representation for accurately imposing the matching conditions at the interface. The method is modified to implement the contact angle conditions on the walls and pores. The dynamic interaction between the droplets growing on multiple pores while keeping the total water flow rate through pores constant is investigated by conducting the computations until the droplet motion exhibits a periodic pattern. The numerical results show that the droplet merging caused by increasing the number of pores is not effective for water removal and that the contact angle of channel wall strongly affects water management in the PEMFC air flow channel.

청각 장애인과의 의사소통을 위한 장갑 형태의 수어 번역기

이수진(S. J. Lee),남재은(J. E. Nam),최지영(J. Y. Choi),김강현(K. H. Kim),김은수(E. S. Kim) 한국재활복지공학회 2023 재활복지공학회논문지 Vol.17 No.1

본 논문에서는 청각 장애인들과 일반인의 의사소통을 언제 어디서나 실시간으로 가능하도록 할 수 있는 장갑 형태의 수어 번역기를 구현하였다. 구현한 장갑 형태의 수어 번역기는 아두이노(Arduino), Flex sensor, AHRS 센서로 구성하였다. 본 논문에서 구현한 장갑 형태의 수어 번역기의 성능을 평가한 실험 결과, 자음의 평균 인식률은 93.6 %이고, 모음의 평균 인식률은 93.3 % 정도임을 확인하였다. In this paper, we proposed a glove-type sign language translator that enables real-time communication between the hearing-impaired and hearing person. The proposed glove-type sign language translator is composed of Arduino, Flex sensor, and AHRS sensor. As a result of evaluating the sign language translator, it was confirmed that the average recognition rate of Korean consonants was 93.6% and the average recognition rate of vowels was about 93.3%.

복합화물열차에서 화물 배치 설계를 위한 적재 및 배치 기술 사례에 대한 고찰

신상훈(S. H. Shin),이헌규(H. G. Lee),최지영(J.Y. Choi),최용훈(Y. H. Choi),정훈(H. Jung),염병수(B.S. Yum) 한국철도학회 2014 한국철도학회 학술발표대회논문집 Vol.2014 No.5

본 연구에서는 복합화물열차를 설계함에 있어서 화물 배치 방안을 수립하기 위하여 다양한 분야의 적재 배치 기술에 대하여 파악한다. 화물 적재 및 하역이 여객 하차 및 탑승 시간에 영향을 미치지 않기 위해 다양한 분야의 화물 적재 배치 사례를 조사하여 특징을 파악하고 복합 화물 열차에 대한 적용 시사점을 도출한다. 이를 바탕으로 복합화물열차의 화물 배치에 있어서 최적의 배치 방안을 수립할 수 있도록 도움을 준다. In this study, we survey wide range of loading/unloading operation problems. The freight loading and unloading operation time should be less than a boarding time. We find out the characteristics of wide range of freight loading studies to apply a planning of loading/unloading on the combined freight train. This study helps a planning of freight loading layout on the combined freight train operations.

여대생의 외모에 대한 상향비교와 다이어트 요구도 연구

Turakulova,김민지,김현수,김혜정,박수정,이소정,전연화,정효경,최지영 이화여자대학교 간호과학대학 2013 이화간호학회지 Vol.- No.47

Purpose: The purpose of this study was to examine the relationship between level of socio-cultural attitude toward appearance and desire to go on diet among female university students. Method: A total of 200 students participated in this study, which was conducted from October 16 to October 19, 2012. The questionnaires were comprised of mass media exposure, socio-cultural attitudes toward appearance, and desire to go on diet. Data were analyzed using the SPSS 19.0 program with Pearson Correlation and ANOVA with Scheffe. Result: Cognition on the desire to go on diet in the normal weight (M=2.841) and overweight groups (M=2.725) was higher than the underweight group (M=2.231). However, diet behavior level in the normal weight group (M=2.310) was higher than the underweight group (M=1.923). Concern and frequency levels in mass media exposure, socio-cultural attitudes toward appearance, and desire to go on diet were positively correlated (p<.01). Conclusion: The higher concern levels appeared in mass media exposure. The higher socio-cultural attitude toward appearance was noted. In conclusion, concern levels in mass media exposure had a positive effect on desire to go on diet.

부호화 엔트로피를 이용한 Corynebacterium glutamicum ATCC 13032 박테리아 게놈 서열의 기능적 분류

최지영,이상훈 仁濟大學校 2006 仁濟論叢 Vol.21 No.1

샤논의 정보 이론을 이용하여 완전한 게놈이 밝혀진 그램 양성박테리아 Corynebacterium glutamicum ATCC 13032 로부터 얻은 DNA 서열의 기능을 분류하고 특성을 조사하였다. 염기의 구조와 결합방식에 따라 부호화된 DNA 서열에서 겹침 없이 3개의 부호를 하나의 무늬로 구성하여 누적 무늬 분포와 보정된 정보 엔트로피를 계산하였다. 논 코딩 영역의 누적 무늬는 길이에 관계없이 코딩영역보다 균등한 분포를 가지며, 엔트로피는 논 코딩 영역이 코딩영역보다 통계적으로 큰 값을 나타났다. 실재 DNA 서열의 구성 염기의 개수를 일치시킨 대체 서열들을 이용하여 대체 데이터 검사를 실시한 결과 DNA 서열이 대체 서열과 통계적으로 유의하게 구분됨을 확인하였다. 누적 무늬 분포와 보정된 정보 엔트로피의 평가는 DNA 서열의 생물학적 기능을 구분하는데 이용될 수 있음을 제시하였다. By using Shannon's information entropy we investigated the functional classification and characterization of symbolic sequences generated from complete DNA sequence of gram positive bacteria Corynebacterium glutamicum ATCC 13032. Cumulative distribution of words and the corrected information entropy were estimated from non-overlapping windows of triplet in symbolic sequence, in which bases in DNA sequence were symbolized according to the structure of nucleic acids and the type of bonding. For coding and non-coding sequences in all ranges of length, non coding sequences always had more uniform distribution of cumulative words and statistically higher entropy value than coding sequences. Through surrogate data test, where the number of bases was kept constant, we found that real DNA sequences were statistically significantly discriminated from the surrogate sequences. Cumulative distribution of words and estimation of corrected entropy might play some role in classifying biological functioning in DNA sequences of complete genome of bacteria.

박테리아 coding, non coding DNA서열의 부호 엔트로피 분석

최지영,이상훈 인제대학교 2004 仁濟論叢 Vol.19 No.1

본 연구는 박테리아 DNA서열의 부호화 정보 엔트로피 측정으로 생물적 기능을 정보량으로 정량화 시킬 수 있음을 제시한다. DNA서열은 네 개의 염기 아데닌, 구아닌, 시토신, 티아민으로 구성되어 있다. DNA 서열을 부호 서열로 구성하기 위해 염기를 두 가지 방법으로 분류했다. 첫 번째로 염기를 그들의 화학적 구조에 따라 purine "quot;={A,G}와 pyrimidine "quot;={C,T}으로 분류하였다. 두 번째는 화학적 구조와 수소결합의 강도를 모두 고려하여 분류하였다. 우선 수소 결합을 살펴보면 약한 수소 결합을 가지는 "quot;={A,T}와 강한 수소결합을 가지는 "quot;={G,C}로 분류하였다. 화학적 결합과 수소 결합을 모두 고려하면A=[1 1]=3 , G=[1 0]=2, T=[0 1]=1, C=[0 0]=0 으로 4개의 심볼 값을 가지게 된다. 이렇게 구성된 심볼 서열로 세 개의 부호를 하나의 워드로 사용하여 단백질 코딩 서열과 논 코딩 서열의 엔트로피를 계산하였다. 박테리아의 게놈 서열은 모두 무작위적으로 보이지만 단백질 코딩 서열과 논 코딩 서열이 서로 다른 엔트로피 값을 가지고 통계적으로 유의함을 확인했다 The purpose of this study was that an entropy might play a role in revealing information contents of biological functioning in DNA sequences. A DNA sequences can be identified with a word over the four nucleic acid bases: adenine, guanine, cytosine, thymine. DNA sequences are converted into two type of symbolic sequences according to their chemical and biological characteristics, In primary classification, the four bases A, C, G, T can be divided into two classes according to the chemical structures, i.e., purine "1"={A,G} and pyrimidine "0"={C,T}. Further classification can be also made according to the strength of the hydrogen bond, i.e., weak H bonds "1"={A,T} and strong H bonds "0"={G,C}. Combination of chemical structure and H bond strength leads to symbol value for four nucleic acid bases; A=[1 1]="3", G=[1 0]="2", T=[0 1]="1", C=[0 0]="0". We calculated the corrected information entropy and entropy rate of a distribution of words with three symbols in the coding and non coding sequences. Although all the CDS sequences in bacteria look like random sequences, we find that coding sequences and non coding sequences have different entropy values with statistical significance