고로슬래그시멘트를 사용한 다공성 황토콘크리트의 성능 평가

김황희,강수만,박종식,박상우,전지홍,이진형,차상선,박찬기,Kim, Hwang-Hee,Kang, Su-Man,Park, Jong-Sik,Park, Sang-Woo,Jeon, Ji-Hong,Lee, Jin-Hyung,Cha, Sang-Sun,Park, Chan-Gi 한국농공학회 2010 한국농공학회논문집 Vol.52 No.3

This study aims to evaluate a porous concrete using hwang-toh, blast furnace slag and blast furnace slag (BFS) cement instead of type I cement. The tests that were carried out to analysis the properties of porous hwang-toh BFS cement concrete included compressive strength, continuous void ratio, absorption rate, and pH value, repeated freezing and thawing test were conducted. Test results indicated that the performance in porous hwang-toh concrete are effective on the kaoline based binder materials. The pH value were shown in about 9.5 ~ 8.5. The compressive strength was increased and void ratio was decreased with increasing the kaoline based binder materials, respectively. The void ratio and compressive strength were in the range of about 21 ~ 30 %, 8 ~ 13 MPa, respectively. The increased in void ratio of more than 25 % is showed to reduce the resistance of repeated freezing and thawing. Also, the resistance of repeated freezing of thawing and the compressive strength of porous hwang-toh BFS cement concrete are independent with hwang-toh content and BFS cement amount. But, the void ratio was decreased with increasing the high volume hwang-toh contents (more than 15 %).

섬유보강 다공성 옥상녹화 황토콘크리트의 물리·역학적 및 온도변화 특성 평가

오리온,김춘수,김황희,전지홍,권완식,박찬기,Oh, Ri On,Kim, Chun Soo,Kim, Hwang Hee,Jeon, Ji Hong,Kwon, Wan Sig,Park, Chan Gi 한국농공학회 2013 한국농공학회논문집 Vol.55 No.4

The physical, mechanical, water purification and temperature properties of fiber reinforced porous hwang-toh green roof concrete have been evaluated in this study. The effect of the depending on replacement ratio of blast furnace slag to cement was investigated such that the replacement ratio is varied to 0 % and 30 %. Also, the replacement ratios of hwang-toh were 0, 20 and 30 %. The polyvinyl alcohol fiber was used for the reinforcing fiber. A series of pH test, unit weight, void ratio, compressive strength, after purification and variation of temperature test have been performed to evaluate the performance, water purification effect and temperature properties of the fiber reinforced porous hwang-toh green roof concrete. The test results indicate that the physical and mechanical properties of fiber reinforced porous hwang-toh green roof concrete is affected by the replacement ratio of the blast furnace slag and hwang-toh contents. Results of purifying water showed that the water purification effect of porous hwang-toh green roof concrete is about 40 %. Also, the temperature properties test results indicate the green roof blocks using fiber reinforced porous hwang-toh green roof concrete have insulation and temperature reduction effect.

학술지 윤리 강화를 위한 표절 검증 사례

황희중(Hee-Joong Hwang),김동호(Dong-Ho Kim),이종호(Jong-Ho Lee),이정완(Jung-Wan Lee),김영이(Young-Ei Kim),양회창(Hoe-Chang Yang),윤명길(Myoung-Kil Youn) 한국유통학회 2015 International Forum on Business Convergence (IFBC) Vol.2015 No.-

Kodisa의 유통과학연구(JDS)에서는 2014년 6월 연구윤리와 관련한 논문 표절 판단 기준에 대해 발표한 바 있다. 본 논문에서는 투고자들이 고의 또는 부주의로 인해 표절 논문을 투고한 후 이를 편집위원회의 심사과정에서 지적된 사항을 중심으로 사례를 제시하고자 한다. 이를 통해 향후 연구자들의 연구윤리 준수를 촉구하고 표절에 대한 경각심을 갖게 함이 목적이다. 연구자 본인의 자체 모니터링만큼 바람직한 것은 없으므로 구체적인 사례 제시를 통해 연구자들의 불안과 궁금증을 해결해 주고 건전한 학문적 분위기를 조성하고자 하는 것이 본 연구의 배경이다.

API Call 정보 기반의 안드로이드 악성코드 분류를 위한 특성 집합 추출

황희진(Hee-Jin Hwang),이수진(Soojin Lee) 한국컴퓨터정보학회 2021 韓國컴퓨터情報學會論文誌 Vol.26 No.11

악성코드를 포함한 모든 응용프로그램은 실행 시 API(Application Programming Interface)를 호출한다. 최근에는 이러한 특성을 활용하여 API Call 정보를 기반으로 악성코드를 탐지하고 분류하는 접근방법이 많은 관심을 받고 있다. 그러나 API Call 정보를 포함하는 데이터세트는 그 양이 방대하여 많은 계산 비용과 처리시간이 필요하다. 또한, 악성코드 분류에 큰 영향을 미치지 않는 정보들이 학습모델의 분류 정확도에 영향을 미칠 수도 있다. 이에 본 논문에서는 다양한 특성 선택(feature selection) 방법을 적용하여 API Call 정보에 대한 차원을 축소시킨 후, 핵심 특성 집합을 추출하는 방안을 제시한다. 실험은 최근 발표된 안드로이드 악성코드 데이터세트인 CICAndMal2020을 이용하였다. 다양한 특성 선택 방법으로 핵심 특성 집합을 추출한 후 CNN(Convolutional Neural Network)을 이용하여 안드로이드 악성코드 분류를 시도하고 결과를 분석하였다. 그 결과 특성 선택 알고리즘에 따라 선택되는 특성 집합이나 가중치 우선순위가 달라짐을 확인하였다. 그리고 이진분류의 경우 특성 집합을 전체 크기의 15% 크기로 줄이더라도 97% 수준의 정확도로 악성코드를 분류하였다. 다중분류의 경우에는 최대 8% 이하의 크기로 특성 집합을 줄이면서도 평균 83%의 정확도를 달성하였다. All application programs, including malware, call the Application Programming Interface (API) upon execution. Recently, using those characteristics, attempts to detect and classify malware based on API Call information have been actively studied. However, datasets containing API Call information require a large amount of computational cost and processing time. In addition, information that does not significantly affect the classification of malware may affect the classification accuracy of the learning model. Therefore, in this paper, we propose a method of extracting a essential feature set after reducing the dimensionality of API Call information by applying various feature selection methods. We used CICAndMal2020, a recently announced Android malware dataset, for the experiment. After extracting the essential feature set through various feature selection methods, Android malware classification was conducted using CNN (Convolutional Neural Network) and the results were analyzed. The results showed that the selected feature set or weight priority varies according to the feature selection methods. And, in the case of binary classification, malware was classified with 97% accuracy even if the feature set was reduced to 15% of the total size. In the case of multiclass classification, an average accuracy of 83% was achieved while reducing the feature set to 8% of the total size.

비소성 무기결합재를 사용한 무시멘트 다공성 식생콘크리트의 물리·역학적 특성 및 동결융해저항성 평가

김황희,김춘수,전지홍,박찬기,Kim, Hwang Hee,Kim, Chun Soo,Jeon, Ji Hong,Park, Chan Gi 한국농공학회 2014 한국농공학회논문집 Vol.56 No.5

The physical, mechanical and freezing and thawing properties of non cement porous vegetation concrete using non-sintering inorganic binder have been evaluated in this study. Four types of porous vegetation concrete according to the binder type is evaluated. The pH value, void ratio, compressive strength, repeated freezing and thawing properties were tested. The test results indicate that the physical, mechanical and repeated freezing and thawing properties of porous vegetation concrete using the non-sintering inorganic binder is increased or equivalent compared to the porous vegetation concrete using the blast furnace slag + cement and hwang-toh + cement binders. Also, Vegetation monitoring test results indicate the porous vegetation concrete using the non-sintering inorganic binder have increasing effects of vegetation growth.

The Role of Models and Note-taking in Noticing and Interlanguage Development

황희정(Hee jeong Hwang) 한국영미어문학회 2016 영미어문학 Vol.- No.122

The present study investigated the process of learners noticing and the role of model texts in their interlanguage development. In particular, it was intended to explore how the noticing function of model texts affects revisions in L2 writing. Moreover the study explored what are the effects of note-taking as a measure of noticing. The participants were 83 Korean EFL college students at a low proficiency level who were involved in a three-staged picture description task. They were asked to give a written picture description (Stage 1), to compare their written texts with two native-speaker models (Stage 2), and to attempt subsequent revisions (Stage 3). At Stage 2, the participants were assigned to engage in two different activities (i.e., note-taking and underlining). The results revealed that the participants mostly noticed problematic linguistic features in both lexical and content categories initially, which accounted for a great majority of overt problematic features, and they subsequently found solutions to the problems and applied them to their revisions. Model texts were found to serve as a good example of native writing for low proficiency learners and note-taking was used as found to be an effective way to promote their noticing. Therefore, L2 learners could take advantage of writing conditions by comparing their writing with model texts provided as feedback along with think-aloud activities such as combined with note-taking. Based on the results, limitations of the study and pedagogical implications were provided.

유튜브 뷰티동영상 특성이 뷰티관리행동 및 화장품 구매의도에 미치는 영향

황희성 ( Hee-sung Hwang ) 한국미용예술경영학회 2018 미용예술경영연구 Vol.12 No.4

인간의 기본적 욕구 중 하나인 미적욕구는 인류문명의 발전으로 다양하게 진화되어가고 있고 다양한 방법으로 발전됨에 따라 학계이 관심이 높아지고 있는 추세이다. 인터넷 발달 이후 소비자들이 스마트 기기를 이용하여 콘텐츠를 시청하는 경로로 유튜브를 가장 많이 이용하고 있고 온라인을 통한 화장품 구매도 급증하고 있는데 이중 SNS를 통한 화장품 시장도 확대되고 있다. 페이스북, 인스타그램, 유튜브 등을 통한 정보가 구매여부와 관계없이 즐거움을 위해 흥미 위주로 탐색하기도 하면서 구매결정으로 이어져 소비자 행동에 영향을 미치기도 한다. 본 연구의 목적은 유튜브 뷰티동영상 특성이 뷰티관리행동 및 화장품 구매의도에 미치는 영향을 알아보기 위해 시행되었다. 수집된 자료는 10-20대 성인 여성을 대상으로 설문조사를 실시하였으며, SPSS for Win 22.0을 이용하여 자료처리 및 분석을 하였다. 연구결과 첫째, 성별은 여성 420명(100.0%), 연령은 16-20세 286명(68.1%)이 가장 높게 나타났고, 최종학력은 고등학교(재학)졸업 263명(62.6%)이 가장 높았으며, 직업은 학생이 334명(79.5%), 월 평균 수입(용돈)은 10만원 미만 85명(20.2%)로 가장 높게 나타났다. 둘째, 유튜브 뷰티동영상의 상호작용성이 높아지면 피부관리행동이 상승하는 것으로 나타났으며 오락성이 높아지면 메이크업행동이 상승하는 것을 알 수 있었다(F = 7.148, p < .001).셋째, 유튜브 뷰티동영상 특성의 정보성, 메시지 전달능력이 높아지면 기초화장품 구매의도가 상승하는 것으로 나타나고 오락성, 메시지 전달능력이 높아지면 색조화장품 구매의도가 상승하는 것으로 나타났으나 구매의도에 유의미한 영향을 미치지 않는 것으로 나타났다(F = 42.563, p < .001). 따라서 현재 유튜브 뷰티동영상 채널이 어떠한 특성을 나타내고 있는지 보여주며 동영상 콘텐츠를 통한 커뮤니케이션과 유튜버의 메시지 전달 능력 등에 따라 뷰티관리행동 및 화장품 구매의도에 영향을 미칠 수 있음을 시사하고 있다. 더불어 본 연구는 유튜브가 하나의 마케팅 매체로서 기능을 수행하고 커뮤니케이션 효과를 지닐 수 있는지에 대한 가능성을 탐색하였으며, 더 나아가 실제 소비자 반응을 함께 살펴보았다는 점에서 학술적 의미를 가질 것으로 기대한다. The aesthetic desire, one of the basic needs of human beings, is evolving into the development of human civilization, and the trend is growing as it develops in various ways. After the Internet development, consumers are using smart devices to watch YouTube. You’re using a lot,Increasing cosmetics purchases are also expanding, and the market for cosmetics through the dual SNS is expanding, regardless of whether information is purchased through Fe Isbook, Instagram, YouTube or YouTube. The purpose of this study is to influence consumer behavior. An image of the image was shown on the Beauty Management Behavior and the purchasing intent of cosmetics. The collected data was conducted on a female woman who was 10-20 to 20. SPSS for Win 22.0 The study showed that 420 women and 16-20 percent of women were among the first to have sex. It showed that 263 students (62.6 percent) graduated from high school (62.6 percent) and the average monthly income (69.5 percent) was the highest, and the average monthly income was $ 100,000. It was the highest of 85 percent (20.2 percent), the second time a YouTube Beautiful video showed a rise in skin control. If this increases, we could see that Makeupaction is rising (F = 7.148, p < .001]. Third, the information on YouTube Beautiful Video Characteristics and the increase in the ability to deliver the message indicate a rise in the number of basic cosmetics purchases in the wake of the increased ability to deliver entertainment and message delivery. It appears that there is no meaningful impact (F = 42.563, p < P].001. This suggests that the current YouTube Beautiful video channel shows what characteristics are represented and can affect the purchasing intent of Beauty Management and cosmetics based on video content and the ability of YouTube to deliver messages. Number of features as marketing mediaHe explored the possibility of conducting a communication and communication effect, and he expects to have an academic meaning in that he looked at the real consumer class.

학술지 윤리 강화를 위한 표절 검증 사례

황희중(Hee-Joong Hwang),김동호(Dong-Ho Kim),이종호(Jong-Ho Lee),이정완(Jung-Wan Lee),김영이(Young-Ei Kim),양회창(Hoe-Chang Yang),윤명길(Myoung-Kil Youn) 한국유통과학회 2015 한국유통과학회 학술대회 논문집 Vol.2015 No.1

Kodisa의 유통과학연구(JDS)에서는 2014년 6월 연구윤리와 관련한 논문 표절판단 기준에 대해 발표한 바 있다. 본 논문에서는 투고자들이 고의 또는 부주의로 인해 표절 논문을 투고한 후 이를 편집위원회의 심사과정에서 지적된 사항을 중심으로 사례를 제시하고자 한다. 이를 통해 향후 연구자들의 연구윤리 준수를 촉구하고 표절에 대한 경각심을 갖게 함이 목적이다. 연구자 본인의 자체 모니터링만큼 바람직한 것은 없으므로 구체적인 사례 제시를 통해 연구자들의 불안과 궁금증을 해결해 주고 건전한 학문적 분위기를 조성하고자 하는 것이 본 연구의 배경이다.

문화재 활용, 진정성의 구현인가, 훼손인가

황희정(Hwang, Hee-Jeong),박창환(Park, Chang-Hwan) 한양대학교 관광연구소 2015 觀光硏究論叢 Vol.27 No.4

문화유산의 보존과 활용에 대한 논쟁은 여전히 지속되고 있다. 이러한 논쟁은 공급자들 중심으로 이루어지고 있으며, 관광객은 담론형성의 주체라기보다는 소비자이자, 속이기 쉬운 존재로 인식되고 있다. 이러한 가운데, 고궁을 대상으로 궁중문화를 활용하여 (관광객에게) 유·무형의 유산을 전달하기 위한 시도가 진행되었다. 이러한 시도는 전문기관에 의하여 특정한 문화가 선택되고, 진정성을 확보하고자 한다는 측면에서 문화정치현상이다. 본 연구는 이러한 시도를 중심으로 문화재를 활용한 진정성의 변화현상에 대한 관광객의 인식과 체험을 분석하였다. 분석 결과, 궁중문화를 활용하고, 전달하고자 하는 시도는 관광객의 적극적인 상호작용을 토대로 새로운 진정성을 형성하고 있는 것으로 분석되었다. 즉, 관광객은 진정성의 적극적 소비주체이자, 형성주체인 것이다. 또한, 관광객들은 문화재 활용 시, 대상적 진정성의 유지·보존이 전제되어야 한다는 입장이다. 이러한 결과는 문화재 활용과 관광상품화가 관광객들에 의해 더 이상 진정성을 훼손시키고 있는 것이 아니라, 새로운 진정성을 형성·구현하고 있음을 의미한다. A cultural heritage issue, specifically its preservation and utilization, has been the center of animated controversy. Who participates in the discussion is mainly a provider; a tourist is rather the subject of a consumer that is regarded as a easy person to deceive. An ancient palace project, which was designed in an attempt to deliver a tangible and an intangible cultural heritage to tourists, was proposed and carried out. It represents the political and cultural phenomenon because a specialized organization has chosen a specific culture for this project that enable an authenticity to be attained. This study analyzed the tourists’ recognitions and experiences regarding a cultural transition of authenticity when cultural assets were utilized. The result shows that the attempt of utilizing and delivering of a royal culture has a positive influence on building a new type of authenticity, on the basis of tourists’ active interactions and communication with each other. What is important is that a tourist is an active consuming project as well as a formative subject. Also, the study reveals that tourists adhere to position where preservation and maintaining of authenticity should be a high priority in terms of a utilization of cultural assets. The result of this study indicates that new authenticity can be formed and constructed, by properly utilizing cultural assets that are engaged in tourists’ active interaction and their contributions.

탈북여성 재현에서의 "경계 넘기" -강영숙의 『리나』, 정도상의 『찔레꽃』을 중심으로

황희정 ( Hee Jung Hwang ) 단국대학교 한국문화기술연구소 2012 한국문화기술 Vol.14 No.-

‘The Cold War’ is one of the most important keywords in forming Korea. The Cold War made two Koreas to have the title ‘divided countries’ which is only one all over the world and made new genre called ‘Defector diaspora’. Various types of studies in the genre have been conducted as lots of literatures are created but studies regarding ‘women’ are not significant. Therefore, this study tells symbols of ‘crossing borders’ of North Korean female defectors’ through 『RI-NA』by Kang Yeongsook and 『JJIL-RE-KKOT』by Jung Dosang. ‘Shoes’ and ‘Fog’ imply woman’s ‘crossing’ in 『RI-NA』and 『JJIL-RE-KKOT』respectively. In 『JJIL-RE-KKOT』, the story tells about defector diaspora but the speaker, ‘I’ considers our awareness important objectively which is a strength of this. In 『RI-NA』, the story does not only tell direct appearing for reality and defector journey, but also maximizes literary imagination. Now, the motif, Diaspora is not new not only in literature but also in general culture-art. However, we especially are exclusive for defector diaspora. One of the reasons for this is distinct characteristic of Korean modern distort. During Japanese colonial period and liberating period-Korean War- people and country division made different ideologies and we do not recognize the ideologies. This study tries to stop biased perspective of ‘North Korea’ or ‘defector’ during such process and rather created cilche for balance. For organized analysis of female character in defector diaspora novel, not only the above literatures but also other various literatures should be analyzed.