합성지하벽에 사용되는 채널형 전단연결재의 전단성능

박나은(Park, Na-Eun),안병혁(Ahn, Byeong Hyeok),서수연(Seo, Soo-Yeon) 대한건축학회 2022 대한건축학회 학술발표대회 논문집 Vol.42 No.2

다익스트라 알고리즘을 활용한 중간지점 추천 애플리케이션 개발

박나은(Naeun. Park),문지연(Jiyeon. Mun),정윤아(Yuna. Jeoung),조서연(Seoyeon. Cho),허원회(Won Whoi Huh) 한국멀티미디어학회 2021 멀티미디어학회논문지 Vol.24 No.2

금융소비자의 P2P투자 의도

박나은(Na-Eun Park),이성림(Seonglim Lee),허은정(Eunjeong Huh) 한국소비자원 2020 消費者問題硏究 Vol.51 No.3

캐시 메모리와 교체 정책 구현 및 성능의 비교

박나은(Na Eun Park),김종완(Jongwan Kim),정태석(Tae Seog Jeong) 한국컴퓨터정보학회 2020 韓國컴퓨터情報學會論文誌 Vol.25 No.3

본 논문은 캐시 시뮬레이션을 통해 각 교체 알고리즘의 캐시 히트(Cache Hit) 및 검색시간을 측정함으로써 캐시 교체 정책에 대한 실용적인 결과를 제시한다. 프로세서의 성능이 향상되면서 캐시 메모리 또한 성능을 향상하기 위한 많은 연구가 활발히 진행되고 있다. 캐시 메모리는 일반적으로 LRU(Least Recently Used) 교체방식을 사용하고 있으며 LRU 방식 이외에도 대표적으로 FIFO(First-In First-Out), LFU(Least Frequently Used) 및 Random 교체방식이 있다. 논문에서는 캐시 메모리 구조 및 교체 알고리즘을 소프트웨어로 구현하여 각 기법의 특징을 분석한다. 논문의 실험결과 LRU 알고리즘이 균등 분포에서 36.044%, 577.936ns, 편향 분포에서 45.636%, 504.692ns의 히트율(Hit ratio)과 검색시간을 보였으며, FIFO 알고리즘은 균등 분포에서 36.078%, 554.772ns, 편향 분포에서 45.662%, 489.574ns로 LRU와 유사한 성능을 보였다. Random 교체방식은 균등 분포에서 30.042%, 622.866ns, 편향 분포에서 36.36%, 553.878%로 가장 낮은 성능을 보였다. 이는 캐시 메모리에서 일반적으로 사용되는 LRU 교체방식이 타 교체 알고리즘보다 최선의 성능을 보이면서도 데이터의 참조 정보를 고려하는 합리적인 알고리즘임을 나타내는 것이다. In this paper, we propose practical results for cache replacement policy by measuring cache hit and search time for each replacement algorithm through cache simulation. Thus, the structure of each cache memory and the four types of alternative policies of FIFO, LFU, LRU and Random were implemented in software to analyze the characteristics of each technique. The paper experiment showed that the LRU algorithm showed hit rate and search time of 36.044% and 577.936ns in uniform distribution, 45.636% and 504.692ns in deflection distribution, while the FIFO algorithm showed similar performance to the LRU algorithm at 36.078% and 554.772ns in even distribution and 45.662% and 489.574ns in bias distribution. Then LFU followed, Random algorithm was measured at 30.042% and 622.866ns at even distribution, 36.36% at deflection distribution and 553.878ns at lowest performance. The LRU replacement method commonly used in cache memory has the complexity of implementation, but it is the most efficient alternative to conventional alternative algorithms, indicating that it is a reasonable alternative method considering the reference information of data.

Scopolamine 유발 기억력 손상 마우스 모델에서 목향(木香)의 기억력 개선 및 항산화 효과

박나은 ( Na-eun Park ),한다영 ( Da-young Han ),김상호 ( Sang-ho Kim ),정대규 ( Dae-kyoo Chung ) 대한한방신경정신과학회 2017 동의신경정신과학회지 Vol.28 No.2

Objectives: The objective of this study is to investigate the anti-amnesic effects of AR, Aucklandiae Radix, ground powder on scopolamine (Sco)-induced memory impairment in mice (C57BL/6) through its favorable acetylcholine (ACh) and acetylcholinesterase (AChE) activity, Choline acetyltransferase (ChAT) mRNA expression, and antioxidant effect. Methods: Six groups, a total of 20 intact or 100 Sco treated mice, were selected based on their body weights and were used in this study. Half of the mice in each group were used for the passive avoidance task test and the measurements of hippocampus ACh content, AChE activity and ChAT mRNA expression. The remaining half of the mice in each group were used for the Morris water maze test and cerebral antioxidant defense system measurement. Results: Marked decreases in step-through latency times in the passive avoidance task test and increases in escape latency times in the Morris water maze test were observed with decreases in the hippocampus ACh content and ChAT mRNA expression, and increases in the hippocampal AChE activities, as a result of Sco intraperitoneal treatment, in the present study. In addition, destruction of the cerebral cortex antioxidant defense systems was observed in Sco control mice as compared with intact vehicle control mice. However, 28 days of continuous oral pre-treatment with AR ground powder at doses of 400, 200 and 100 mg/kg markedly and dose-dependently inhibited the Sco treatment-related amnesia. Conclusions: The results prove that oral administration of AR ground powder reduces Sco-induced memory impairment. This is because it can preserve ACh, related to ChAT mRNA expression, cause AChE inhibition, and activate the cerebral antioxidant defense system.

한의치료와 미술치료을 통한 조현병 환자 치험례

박나은 ( Na-eun Park ),박준현 ( Jun-hyun Park ),김대억 ( Dae-eok Kim ),김상호 ( Sang-ho Kim ),정대규 ( Dae-kyoo Chung ) 대한한방신경정신과학회 2016 동의신경정신과학회지 Vol.27 No.3

Objectives: Schizophrenia is a serious disease that influences not only the patients themselves but also their family and the society. In this case, we employed art therapy and Korean traditional medicine for treating a schizophrenia patient. Methods: The patient was diagnosed with schizophrenia, and the main complaints were hallucination, visual hallucination and catatonic behavior. We treated the patient with art therapy and Korean traditional medicine including acupuncture, moxa and herbal medicine. We used the Brief Psychiatric Rating Scale (BPRS) and the Positive and Negative Syndrome Scale (PANSS) for assessment. Results: After treatment, clinical symptoms were improved and the BPRS and PANSS scores were decreased, especially the scores for anxiety, depression and poor rapport. Conclusions: Combined treatment with art therapy and Korean traditional medicine can be effective for treating chronic schizophrenia.

음식축제에 대한 참여태도와 주관적 규범이 참여의도에 미치는 영향

복미정(Mi-Jung Bok),박나은(Na-Eun Park) 한국컴퓨터정보학회 2019 韓國컴퓨터情報學會論文誌 Vol.24 No.4

The purpose of this study is to analyze the effect of behavior attitude and subjective norm on food festival behavior intention of married women living in Ulsan area. The data were analyed with PASW 18.0 using reliability analysis, frequency analysis, paired T-test, T-test, correlation analysis, one-way ANOVA and multiple regression analysis. The results were as follows. First, First, married women had a slightly higher passive behavior intention than aggressive behavior intentions on food festivals. Second, the more the experience of past food festivals, the higher the economic level, the higher the housewife "s housewives, the higher the food festival behavior intention. Third, the behavioral intention of food festival increased with higher behavioral attitude and subjective norms. Fourth, subjective norms were the most influential variable for the behavioral intention of married women. Next, the behavior attitude for food festival was found.

락과 쪽의 복합염색에 의한 견직물의 암색 구현

이수연(Lee, Suyeon),박나은(Park, Naeun),하혜정(Ha, Hyejeong),최종명(Choi, Jongmyoung) 충북대학교 생활과학연구소 2019 생활과학연구논총 Vol.23 No.3

This study was conducted to develop dark color through combination dyeing of natural dyestuffs. Silk fabrics were dyed in a combination of natural indigo and lac. Fabrics used in this study were treated with three kinds of mordant (aluminum, iron, and zinc) before and after combination dyeing. Following this, the color characteristics of silk fabrics dyed using combination dyeing were measured. The resulting colors of the silk fabrics differed on the basis of which combination dyeing sequence was used. It was found that dyeing with lac followed by indigo resulted in a dark grayish red purple color (RP), while dyeing with indigo followed by lac showed a dark grayish red color (R). The eventual colors of silk fabrics dyed with a combination of lac and indigo all showed a dark grayish color tone when pretreated with mordant but were slightly different depending on the type of mordant used. It was found that combination dyeing with lac and indigo developed the dark tone of red (R), yellow red (YR), red purple (RP), and purple (P) colors.

인터넷전문은행 미가입자의 수용 의도 결정 요인

김효정(Kim, Hyo-Jung),박나은(Park, Na-Eun),이성림(Lee, Seonglim) 한국소비문화학회 2018 소비문화연구 Vol.21 No.3

본 연구는 액티브 시니어(50-60대) 소비자를 대상으로 인터넷전문은행 수용 의도에 영향을 미치는 요인들과 성별의 조절 효과를 살펴보았다. 인터넷전문은행 수용 의도에 영향을 미치는 선행 요인으로 성과 기대, 노력 기대, 사회적 영향, 촉진 조건, 그리고 프라이버시 위험을 살펴보았다. 본 연구는 인터넷 접근 및 활용이 가능한 50-60대 소비자를 선정하여 온라인 조사를 실시하였으며, 총 321명의 응답 자료가 최종 분석에 활용되었다. 본 연구의 분석 방법으로는 SPSS 23.0을 활용하여 빈도 분석, 기술 통계 분석, 신뢰도 분석을 실시하였으며, Amos 23.0을 활용하여 확인적 요인 분석과 구조 모형 분석, 그리고 조절 효과 분석을 실시하였다. 본 연구의 결과는 다음과 같다. 구조 모형 분석 결과 노력 기대, 사회적 영향, 촉진 조건이 인터넷전문은행 수용 의도에 정(+)적인 영향을 미치는 것으로 나타났으며, 프라이버시 위험이 인터넷전문은행 수용 의도에 부(-)적인 영향을 미치는 것으로 나타났다. 성별의 조절 효과를 살펴보면, 남성 집단에서는 노력 기대, 사회적 영향, 촉진 조건이 인터넷전문은행 수용 의도에 정(+)적인 영향을 미치는 것으로 나타났다. 여성 집단에서는 사회적 영향, 촉진 조건이 인 터넷전문은행 수용 의도에 정(+)적인 영향을 미치는 것으로 나타난 반면, 프라이버시 위험이 인터넷전문은행 수용 의도에 부(-)적인 영향을 미치는 것으로 나타났다. 사회적 영향과 촉진 조건이 액티브 시니어 전체와 남성 및 여성 집단 모두에서 인터넷전문은행의 수용 의도를 증가시키는 중요한 요인으로 확인되었다. 또한, 인터넷전문은 행 수용 의도에 미치는 영향 요인이 성별에 따라 다른 것으로 나타나 액티브 시니어의 인터넷전문은행에 대한 행태를 이해하기 위해서는 성별에 대한 고려가 필요함을 시사한다. 본 연구 결과는 액티브 시니어 소비자들의 신서비스 수용을 이해하는데 기초 자료로 활용될 수 있을 것이며, 인터넷전문은행의 비이용자들의 특성을 살펴보는데 기여할 수 있을 것이다. The current study analyzes the determinants of active seniors’ intention to use Internetprimary Banks and investigates the moderating effect of gender. Performance expectancy, effort expectancy, social influence, facilitating conditions, and privacy risk were antecedent factors assessed in the current study. The participants were 321 active seniors aged 50-60 years, all of whom had Internet access. An online survey was administered, SPSS 23.0 was used to conduct frequency, descriptive, and correlation analyses, and Amos 23.0 was used to perform confirmatory factor analysis, structural equation modeling, and multiple-group confirmatory factor analysis. The results were as follows: First, effort expectancy, social influence, and facilitating conditions significantly increased intention to use Internet-primary Banks. Second, privacy risk significantly decreased intention to use them. Third, gender had a moderating effect on participants intention to use Internet-primary Banks. In the male group, effort expectancy, social influence, and facilitating conditions significantly increased intention to use Internetprimary Banks. However, in the female group, social influence and facilitating conditions significantly increased intention to use Internet-primary Banks, but privacy risk significantly decreased intention to use them. Social influence and facilitating conditions are the most important factors in the active seniors’ group, which increases intention to use Internet-primary Banks. These findings suggested that researchers should take into consideration factors of gender in the development and understading of intention to use Internet-primary Banks.

알츠하이머병 유발 동물모델에서 한약제재 경구투여가 기억에 미치는 영향에 대한 국내 연구보고 고찰

한다영 ( Da-young Han ),박나은 ( Na-eun Park ),김상호 ( Sang-ho Kim ),정대규 ( Dae-kyoo Chung ) 대한한방신경정신과학회 2017 동의신경정신과학회지 Vol.28 No.4

Objectives: The objective of this study was to review the effect of oral administration of herbal medicines on the improvement of memory in Alzheimer's disease animal model reported in Korean domestic journals. Methods: The Korean databases (Koreantk, KISS) were searched with memory as a popular search term. During the searches, only animal study reports were reviewed. Data of animal models, intervention, observation methods of measuring indicators were extracted from the databases. Results: Typically, 36 articles were reviewed. Twenty-two studies used scopolamine to induce Alzheimer's disease, 24 studies used complex herbal medicines, and 12 studies used simple herbal medicines. Polygalae Radix and Acori Rhizoma were the most frequently used herbal medicines to improve memory in Alzheimer model. To evaluate the effect of herbal medicines, 36 studies used macroscopy, 16 studies used molecular biological analysis, 21 studies used biochemical analysis, 15 studies used histological analysis, and 11 studies used hematological analysis. Each study showed significant improvement with respect to memory indicators. Conclusions: Overall, the results suggest that treatment employing herbal medicines is an effective option to treat memory impairment in Alzheimer’s disease.