중국과의 과학기술협력 현황과 전망-신뢰바탕한 상호협력시대 열어야

황지연,Hwang, Ji-Yeon 한국과학기술단체총연합회 1995 과학과 기술 Vol.28 No.1

영유아용 분말 조제분유의 미생물 품질분석과 위해세균 모니터링

황지연,이지연,박종현,Hwang, Ji-Yeon,Lee, Ji-Youn,Park, Jong-Hyun 한국축산식품학회 2008 한국축산식품학회지 Vol.28 No.5

Ninety-nine samples of powdered infant formula in a market were collected from the local market and their contaminations for total aerobic bacteria, coliform, FAO/WHO Category A, B, and C pathogens were analyzed. Total aerobic bacteria were detected in 92 of 99 samples (93%) at levels of $1.83{\pm}0.68\;Log\;MPN/g$. These levels were below legal levels specified for infant formulas except for one sample detected by 4.5 Log CFU/g. Coliform was detected in 12 of 99 samples (12%) at levels of $1.26{\pm}1.03\;Log\;MPN/g$ whereas non-detection was required according to the specification of coliform in infant formulas. Escherichia coli was detected in 1 of 99 samples by 0.48 Log MPN/g. Salmonella and Enterobacter sakazakii among Category A weren't detected in all the samples. Enterobacteriaceae, Category B group, were detected in 25 samples of total 99 samples (25%) by $0.83{\pm}1.37\;Log\;MPN/g$. Enterobacteriaceae identified by API 20E were Escherichia vulneris, Es. hermannii, Pantoea spp., Citrobacter koseri, Klebsiella pneumoniae, En. cloaceae. Bacillus cereus among Category C was highly detected in 29 of 99 samples (29%) at levels of $0.69{\pm}0.32\;Log\;MPN/g$ with the most probable number count method, which were below legal levels for the specification of B. cereus in infant formulas. Clostridium perfringens, E. coli O157, Staphyloccus aureus, Listeria monocytogenes, Yersinia enterocolitica, and Campylobacter jejuni/coli were not detected. Contamination level of major pathogens was low and falls within the range of specification of infant formulas. However, Enterobacteriaceae and B.cereus showed the high prevalence and some Enterobacteriaceae causing disease were detected. Therefore, it is necessary to monitor the potential pathogens continually and reduce them to improve the microbial quality of non-sterilized powdered infant formulas.

Enzyme-linked immunosorbent assay를 이용한 바이러스성 출혈성 패혈증 바이러스 감염 넙치(Paralichthys olivaceus)의 특이 항체반응 검사

황지연,장진현,김동준,권문경,서정수,황성돈,손맹현,Hwang, Jee Youn,Jang, Jin Hyeon,Kim, Dong Jun,Kwon, Mun Gyeong,Seo, Jung Soo,Hwang, Seong Don,Son, Maeng-Hyun 한국수산과학회 2017 한국수산과학회지 Vol.50 No.5

The viral hemorrhagic septicemia virus (VHSV) has an extensive host range, and infects farmed and wild fish inhabiting both freshwater and marine ecosystems. Enzyme-linked immunosorbent assay (ELISA) is highly useful in diagnosing viral hemorrhagic septicemia. However, ELISA shows high, non-specific background reaction with fish antibodies. In this study, we optimized the antigen and antibody concentrations used for detecting specific antibodies in VHSV-infected olive flounder to reduce non-specific binding, and improve the sensitivity of ELISA. The results suggested that OD (optical Density) values were valid when ELISA was performed with $0.1{\mu}g/well$ of virus, involving blocking with blocking buffer (Roth, Roti-Block), 1:300-1:600 dilution with flounder antisera, and 1:1000 dilution with anti-flounder IgM and HRP-conjugated goat anti-mouse IgG for detecting the VHSV antibody in flounder sera. Furthermore, 11 different VHSV strains isolated in Korea from 2012 to 2016 were used to infect the fish. The results showed no correlation between viral pathogenicity and antibody production. This research is a basic study on the application of antibody detection in the diagnosis of viral hemorrhagic septicemia in the olive flounder.

중학교 자유학기제 체육활동에 대한 학생 인식 및 만족도 분석

황지연 ( Jiyeon Hwang ),유정애 ( Jeongae You ) 중앙대학교 학교체육연구소 2016 Asian Journal of Physical Education of Sport Scien Vol.4 No.2

본 연구는 중학교 자유학기제 도입에 따른 교육과정 내 체육활동의 운영에 대한 학생들의 인식 및 만족도를 파악하여 학생들의 꿈과 끼를 실현할 수 있는 체육교육 활성화를 위한 기초 자료로 사용되고자 한다. 이를 위해 2014년도부터 2015년까지 운영된 자유학기제 연구·희망학교 중 11개교를 비확률 표집(nonprobability sampling)하여 632명을 대상으로 설문조사를 실시하였다. 자료처리는 SPSS Ver 23.0을 이용하여 빈도분석, 기술통계 분석, 교차분석, 독립표본 t검증, one-way ANOVA를 실시하였다. 그 결과 첫째, 학생들은 자유학기제 운영 목적에 대한 이해도는 높은 반면, 자유학기제 체육활동과 기본교과 체육수업 간의 차별성을 인식하지 못하는 것으로 나타났다. 둘째, 학생들이 자유학기제 체육활동을 통해 경험한 활동들은 주로 경기위주의 스포츠 종목 중심으로 자유학기제 취지와 다른 내용을 제공받고 있었다. 셋째, 자유학기제 체육활동에 대한 만족도에 있어 지역, 학교규모 간 유의미한 차이는 보이지 않았지만, 남학생이 여학생보다 수업시수, 수업방법, 관계 개선, 행복도, 진로 탐색 측면에서 높은 만족도를 나타냈다. The purpose of this study is to explore student`s perceptions toward physical education activities in free semester system in Korean middle school. An investigation into student perception toward the various aspects of free semester system physical education activities revealed that, out of the three background variables(gender, region, school size), a difference in perception regarding physical education activity operation was found according to gender. Regarding the perception of preferred class hours, satisfaction and internal change, male students perceived them as many class hours, high satisfaction, and positive change in contrast to female students. This implies that the relative deprivation felt by the female students may take effect if the physical education activities in the free semester system maintains the contents, methods, and ambience of existing physical education classes. Therefore, free semester system physical education activities must be operated in a way that allows all students to participate without creating a blind spot. Based on such results, the study was able to confirm differences in viewpoint from various aspects regarding free semester system physical education activities. This can be the basis for a directional search aimed at the stable settlement of free semester system physical education activities, and requires a strategic discussion for the revitalization of physical education from a wider perspective.

잉여슬러지로부터 가용단백질 회수의 최적화 및 동물사료로서의 사용가능성 평가

황지연 ( Ji Yeon Hwang ),장덕진 ( Deok Jin Jahng ) 한국물환경학회 2007 한국물환경학회·대한상하수도학회 공동 춘계학술발표회 Vol.2007 No.-

중학교 자유학기제 체육활동에 대한 체육교사 인식 탐색

황지연(Hwang, Ji-Yeon),유정애(You, Jeong-Ae) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.1

One of the most significant national policies in education is ’Free Semester System’ that was first introduced in 2013 and would be formally implemented in 2016. In fact, the free semester system makes it guide to do the free selection and implementation for educational content and teaching-learning method that pursuits ‘Happy Education’. However, little attention is given to academic efforts on understanding of how to perceive and implement physical education activity according to pilot-testing free semester system in the middle school, even if the teachers are serving the central roles in free semester s ystem. Thus, t he purpose o f this paper i s to explore t he p erception of p hysical education teachers who have experienced free semester system in middle schools. For this, 10 experienced teachers are selected using non-probability sampling and are interviewed 2 times per a teacher. Using a questionnaire developed by KEDI, the questions for in-depth interviews are modified. All data from interviews are analyzed using the method from Connelly & Clandinin(2000). The findings are consisted of two perspectives such as positive perception and negative perception. The positive perception are characterized as three themes: the change of teaching-learning method, the change of students’ perception, and the change of evaluation. On the other hands, there are three themes(lack of identity, unsystematic information, burdens of workloads) in terms of negative perception.

포아송 로그-이중선형 모형을 이용한 한국 남성 사망률의 베이지안 추정 및 활용

황지연 ( Ji Yeon Hwang ),고방원 ( Bang Won Ko ) 보험연구원 2016 보험금융연구 Vol.27 No.1

본 연구는 최근 각광받고 있는 베이지안 통계기법을 이용해 한국 남성의 장래사망률을 추정하고, 베이지안 관점에서 기대여명을 비롯한 종신연금과 종신보험의 보험수리적현가를 분석한 것이다. 시간이 경과함에 따라 사망률이 개선되고 있는 현상을 확률적으로 모델링하기 위해, 전통적인 Lee-Carter 모형을 보완한 포아송 로그-이중선형모형을 가정했고, Czado 외 2인(2005)에서 제안된 베이지안 방법론을 적용하여 장래사망률을 추정했다. 추정방법별 추정치들의 차이를 분석하기 위해 특이값 분해 및 최대가능도를 이용한 전통적 추정방법을 병행해 결과를 비교했다. 추정결과에 따르면, 추정방법에 의한 장래사망률의 차이는 크지 않으나, 전통적인 추정방법의 경우 장래사망률의 신뢰구간을 과소평가하는 경향이 있는 것으로 나타났다. 본 연구에서 사용된 베이지안추정방법은 이러한 문제에 대한 해결책을 제시할 뿐만 아니라 향후 보험부채의 평가에도 유용하게 활용될 수 있을 것으로 기대한다. In this paper, we intend to project the future Korean mortality rates, and analyze the effect of mortality improvement on the life expectancies and the actuarial present values of life insurances and life annuities. Under the Poisson log-bilinear model, we estimate the parameters for the Korean males by using the hierarchical Bayesian methodology proposed by Czado et al.(2005). For comparison purpose, we provide the estimation results based on the singular value decomposition and the maximum likelihood estimation. Our results show that the parameter estimates based on three different estimation methods do not exhibit a large difference between each other, but the traditional estimation methods underestimate the prediction interval. We expect that the Bayesian estimation method not only can provide a solution to this underestimation problem, but could be very useful to evaluate insurers’ liabilities in the future.

대구 및 경북 일부 지역 여성들의 경락마사지에 대한 인식도 및 신뢰도 조사 연구

황지연 ( Jee Yeon Hwang ) 대한미용학회 2006 대한미용학회지 Vol.2 No.1

문학 장르속의 의태어 번역 양상

황지연(Hwang, Ji Yeon) 영남대학교 중국연구센터 2010 중국과 중국학 Vol.11 No.-

This thesis studied how Korean mimetic words were translated into Chinese in the novel Daejangeum whose drama version, Jewel in the Palace, featured the royal cuisine of Korea’s Joseon dynasty and drew large audiences in Chinese communities. Mimetic words are readily found in many Korean literatures, which frequently use visual and tactile expressions and native Koreans describing characters’ mental state. I think that translation of mimetic words will be an interesting subject for those interested in literature translation because it is challenging to translate mimetic words, which are sensuous, lively, and implicative. This thesis mainly focused on mimetic words used in the novel Daejanggeum. It explored how the Korean mimetic words were translated into Chinese by organizing Chinese translation results and observing certain patterns. Considering that Chinese has a number of reiteration forms, this thesis classified the patterns by a syllable based on reiteration forms. As a result, Chinese translation of Korean mimetic words in the novel Daejanggeum was categorized into several patterns of AA, ABB, ABAB, AABB, A了AB, A里AB.

모션 트레킹 수트를 활용한 작업자 사고 동작 인식

황지연(Jiyeon Hwang),나재영(Jaeyoung Na),남우철(Woochul Nam) 대한기계학회 2022 대한기계학회 춘추학술대회 Vol.2022 No.4