한국어 음성인식을 위한 음성학 기반의 유사음소단위 집합 설계

홍혜진,김선희,정민화,Hong, Hye-Jin,Kim, Sun-Hee,Chung, Min-Hwa 대한음성학회 2008 말소리 Vol.65 No.-

This paper presents the effects of different phone-like-unit (PLU) sets in order to propose an optimal PLU set for the performance improvement of Korean automatic speech recognition (ASR) systems. The examination of 9 currently used PLU sets indicates that most of them include a selection of allophones without any sufficient phonetic base. In this paper, a total of 34 PLU sets are designed based on Korean phonetic characteristics arid the effects of each PLU set are evaluated through experiments. The results show that the accuracy rate of each phone is influenced by different phonetic constraint(s) which determine(s) the PLU sets, and that an optimal PLU set can be anticipated through the phonetic analysis of the given speech data.

구간척도를 사용하는 경우 신뢰도 할당 가중치의 결정방법

홍혜진 ( Hye Jin Hong ),김경미 ( Kyung Mee Kim ) 한국경영공학회 2013 한국경영공학회지 Vol.18 No.3

Reliability allocation is a procedure that apportions the system reliability goal into the constituent subsystems during the design stage of a system. Previously, different reliability allocation methods have been developed based on the ten-point interval scales. In this paper, we point out theoretical limitations of previous methods, and three methods are suggested considering the degree of dependability on the obtained ten-point values. If a difference of two interval values is meaningful to the designer, then a modified Karmiol method is recommended. Otherwise if not the difference but only the rank of values is meaningful, a rank-based method is useful. Finally, if a difference of two values can be transformed into a ratio scale, then the well known AHP method can be applied. An example is given to illustrate the proposed methods.

AEDT와 항적자료를 이용한 항공기 연료소모량 산출

홍혜진(Hye-Jin Hong),박건환(Geon-Hwan Park),박재우(Jae-Woo Park),이승표(Seung-Pyo Lee),구성관(SungKwan Ku) 한국항공우주학회 2022 한국항공우주학회 학술발표회 논문집 Vol.2022 No.11

강신재 소설에 나타난 불안과 그 서사적 특성 연구

홍혜진 ( Hye Jin Hong ) 문창어문학회 2008 문창어문논집 Vol.45 No.-

This study focuses on discussing the anxiety of characters and its epic characteristics revealed remarkably in Kang Shin-jae`s full-length novels in 1960`s. Unfortunately, conventional studies on his fiction works have focused primarily on short story, and there has been not yet any in- depth discussion on internal aspects of his full-length novels. Kang is a prolific novelist but is yet to be further reviewed in his works. So this study focused on a period of his full-scale novel writing and sought to find potential implications of Kang`s fiction in the history of Korean modern and contemporary novel by examining his full-length novels titled "Your Scent in Forest" and "Today and Tomorrow." In the aspect of consciousness, this study discussed the concept of anxiety in characters, in associations with psychological and philosophical thinking, and prepared a pathway to analyzing his novels in contextual awareness of 1960`s. Here, this study could not help but to consider social subject of characters, since the historical backgrounds in 1960`s gave a significant opportunity to interpret their individual anxiety from social perspectives, rather than in the aspect of meanings implied in anxiety. Chapter 2 made further discussions on fundamental causes and aspects of anxiety revealed in fiction characters. As a result, it was found that the anxiety across whole story of novel became a psychological core so that it could focus on specificity revealed uniformly in form of neurosis on special culture or age in 1960`s, which is different from contemporary anxiety. First, it means anxiety about devotion, that is, typical anxiety one feels from concerns about any threat against his own place as well as from violations of his inviolability. In other words, it means anxiety about potential access of neighbors. Second, in case of one`s desires to live his overwhelming devotional life while avoiding becoming himself, his partners - ``you`` - get overestimated and even appear as depressive characters. Third, there is a sort of anxiety about changes, which means anxiety about potential modifications of inner topography in oneself on the way to changing or even stopping aspiration for continuity. Finally, there is a sort of anxiety about inevitability, which involves ambivalent yearning for intimate stability and somewhere remote to change us beyond familiar paradigm, resulting in anxiety about something unavoidable and anxiety about potential restrictions of inevitability and free desires. Chapter 3 focused on certain epic characteristics in which the anxiety of characters, as discussed in previous chapter, was embodied on story. As a result, first, it is found that characters` anxious behaviors on the way to possession of desires on a repetitive basis appear in two aspects, i.e. their spatial departure from home and corresponding introduction and filling. Kang`s characters try to escape their home which involves a cycle of stereotyped daily life or troubled situations. Here, they reveal patterned attempts to escape home. Second, it is found that the motif of symbolic murder via demolition of body appears in restoration of primeval consciousness by ontological fear resulting from anxiety in reality, and images of human and animal corporal demolition create an atmosphere of anxiety overall in Kang`s fiction, plus anxiety of his characters. Third, a literary technique of contextual irony reveals certain psychology of characters possessed by inner anxiety. As described above, novel reflects our society from different angles. So this study took microscopic approach to the distinction of anxiety shown in Kang`s fiction in 1960`s from the angle of anxiety. With even personal relationships overwhelmed by radical social changes in uncertain industrial society of 1960`s, Kang paid attention to the permeation of materialistic values into a gap of such changes. Human and social anxiety is shown across various spectra in 1960`s, while Kang`s spectrum refers to a prospect closer to personal relationships and inner world. Also, Kang`s fiction has implications in that it maximizes anxiety even in epic techniques, not limited only to content including character languages and depiction, narrator`s position, viewpoint and backgrounds. Kang`s characters in novel reflect his consciousness of desires to reveal people`s inner world toward life through filtering instrument called ``novel`` in historical backgrounds of 1960`s, beyond simple depiction of individual characteristics, and this discussion on aspects of anxiety in Kang`s novels become a significant academic work on the 1960`s.

올벚나무 잎 추출물의 항염 효능 및 유효성분 규명

홍혜진 ( Hye Jin Hong ),고하나 ( Ha Na Ko ),이남호 ( Nam Ho Lee ) 대한화장품학회 2019 대한화장품학회지 Vol.45 No.2

올벚나무 잎 추출물을 제조하고 LPS로 자극시킨 RAW 264.7 대식세포에 대한 항염 효과를 조사하였다. 추출물 및 분획물(n-hexane, ethyl acetate, n-butanol 및 water)에 대하여 활성 실험을 진행한 결과, 100 μg/mL 농도에서 ethyl acetate (EtOAc) 분획물이 세포독성 없이 76.3%의 NO 생성 억제 효과를 나타내었다. 또한 EtOAc 분획물이 농도 의존적으로 NO 생성을 효과적으로 억제하고 있음을 확인하였다. 이러한 항염효과에 대한 추가적인 기전 연구를 진행한 결과, EtOAc 분획물이 PGE2, IL-1 β 및 IL-6의 생성을 감소시켰으며, iNOS와COX-2 단백질의 발현도 억제시키는 것을 확인하였다. EtOAc분획물에서 활성 성분을 규명하기 위하여 column chromatography를 진행하였으며 5개의 화합물을 분리 동정하였다. ursolic acid (1), prunasin (2), methyl p-coumarate (3), kaempferol (4), astragalin (5). 분리된 compound 1 - 5는 모두 올벚나무 잎에서 처음 분리된 물질이다. 분리된 화합물을 대상으로 활성 실험을 진행한 결과, 플라보노이드 compound 4와 5가 NO 생성을 억제하고 있음을 확인하였다. 이상의 결과를 바탕으로, 플라보노이드를 유효성분으로 함유하는 올벚나무 잎은 항염 효과를 갖는 천연 소재로서 활용이 가능할 것이라 사료된다. In this study Anti-inflammatory activity was investigated for the extract of Prunus pendula for. ascendens (Makino) Ohwi by monitoring nitric oxide (NO) production in LPS-stimulated RAW 264.7 murine macrophage cells. The P. pendula ethyl acetate (EtOAc) fraction showed to decrease the NO synthesis by 76.3% at 100 μg/mL concentration. The inhibition occurred in a dose-dependent manner without causing cell toxicity. The EtOAc fraction also inhibited the production of PGE2, IL-1β, IL-6 and expression of iNOS, COX-2 protein in dose-dependent manner. From the phytochemical study to isolate the active constituents, five known compounds were identified, which are ursolic acid (1), prunasin (2), methyl p-coumarate (3), kaempferol (4), astragalin (5). All of the compounds 1 - 5 were isolated for the first time from the P. pendula. Among the isolates, the flavonoids 4 and 5 were verified to inhibit NO production with high efficiency. These results suggested that extract of P. pendula leaves could be useful as anti-inflammatory agents in pharmaceutical or cosmetic applications.

초등 수학영재와 일반학생의 사고양식 및 수학적 능력 구성 요소

홍혜진 ( Hye Jin Hong ),강완 ( Wan Kang ),임다원 ( Da Won Lim ) 한국수학교육학회 2014 初等 數學敎育 Vol.17 No.2

본 연구의 목적은 영재의 사고양식 및 수학적 능력의 특성을 밝혀 영재의 특성을 고려한 프로그램 개발에 이바지하고자 하는 데 있다. 이를 위해 초등학교 수학영재교육 대상자와 일반학생을 대상으로 사고양식과 수학적 능력의 구성 요소를 분석하고, 두 변인간의 상호관련성을 탐색하였다. 연구 결과에 따르면 수학영재교육대상자가 일반학생에 비해 입법형, 사법형, 위계형, 전체형, 부분형 내부지향형, 자유형의 사고양식이 높을 뿐만 아니라 계산력, 추론능력, 가역성, 일반화, 공간, 기억력의 수학적 능력 또한 수학영재교육대상자가 일반학생보다 높은 것으로 나타났다. 그리고 회기분석 결과, 사고양식과 수학적 능력 간에는 어느 정도 상관관계가 있음을 알 수 있었다. The purpose of this study was to investigate the relationships between thinking styles and the components of mathematical ability of elementary math gifted children. The results of this study were as follows:First, there were differences in thinking styles: The gifted students prefer legislative, judical, hierarchic, global, internal and liberal thinking styles. General students prefer oligarchic and conservative thinking styles. Second, there were differences in components of mathematical ability: The gifted students scored high in all sections. And if when they scored high in one section, then they most likely scored high in the other sections as well. But the spacial related lowly to the generalization and memorization. There is no significant relationship between memorization and calculationThird, there was a correlation between thinking styles and components of mathematical ability: Some thinking styles were related to components of mathematical ability. In functions of thinking styles, legislative style have higher effect on calculation. And executive, judical styles related negatively to the inference ability. In forms of thinking styles monarchic style had higher effect on space ability, hierarchic style had higher effect on calculation. Monarchic, hierarchic styles related negatively to inference ability. In level of thinking styles global, local styles have higher effect on calculation. Local styles related negatively to the inference ability. In the scope of thinking styles, internal style had a higher effect on generalization, and external style had a higher effect on calculation. And there is no significant relationship leaning of thinking styles.

인체진동영향평가를 위한 하중모델링 기법에 관한 연구

홍혜진(Hong Hye Jin),박연수(Park Yeon Soo),박선준(Park Sun Joon),김응록(Kim Eung Rok) 대한토목학회 2003 대한토목학회 학술대회 Vol.2003 No.10

Recovery of copper from waste effluent by selective adsorption technique by polyethylene imine modified cellulose nanofibril biosobent and reprocessing as a copper nanoparticle

Hye-Jin Hong(홍혜진) 대한환경공학회 2022 대한환경공학회 학술발표논문집 Vol.2022 No.11

장신구사에 나타나는 상징적 의미에 관한 연구

홍혜진(Hong Hye-Jin) 한국디자인학회 2005 디자인학연구 Vol.18 No.1

일반품질연구 : 신규 개발하는 소모성 발사체의 베이지안 신뢰도 추정

홍혜진 ( Hye Jin Hong ),김경미 ( Kyungmee O Kim ) 한국품질경영학회 2014 품질경영학회지 Vol.42 No.2

Purpose: This paper explains how to obtain the Bayes estimates of the whole launch vehicle and of a vehiclestage, respectively, for a newly developed expendable launch vehicle. Methods: We determine the parameters of the beta prior distribution using the upper bound of the 60%Clopper-Pearson confidence interval of failure probability which is calculated from previous launch data consideringthe experience of the developer. Results: Probability that a launch vehicle developed from an inexperienced developer succeeds in the firstlaunch is obtained by about one third, which is much smaller than that estimated from the previous research. Conclusion: The proposed approach provides a more conservative estimate than the previous noninformativeprior, which is more reasonable especially for the initial reliability of a new vehicle which is developed byan inexperienced developer.