대류성 자기조립법을 통한 폴리스티렌 비드 대면적 단일층 형성에 미치는 공정 변수 효과

서안나,최지환,변재철,김원목,김인호,이경석,Seo, Ahn-na,Choi, Ji-Hwan,Pyun, Jae-chul,Kim, Won Mok,Kim, Inho,Lee, Kyeong-Seok 한국재료학회 2015 한국재료학회지 Vol.25 No.12

Self-assembled monolayers(SAM) of microspheres such as silica and polystyrene(PS) beads have found widespread application in photonic crystals, sensors, and lithographic masks or templates. From a practical viewpoint, setting up a high-throughput process to form a SAM over large areas in a controllable manner is a key challenging issue. Various methods have been suggested including drop casting, spin coating, Langmuir Blodgett, and convective self-assembly(CSA) techniques. Among these, the CSA method has recently attracted attention due to its potential scalability to an automated high-throughput process. By controlling various parameters, this process can be precisely tuned to achieve well-ordered arrays of microspheres. In this study, using a restricted meniscus CSA method, we systematically investigate the effect of the processing parameters on the formation of large area self-assembled monolayers of PS beads. A way to provide hydrophilicity, a prerequisite for a CSA, to the surface of a hydrophobic photoresist layer, is presented in order to apply the SAM of the PS beads as a mask for photonic nanojet lithography.

최저주거기준 미달가구의 특성 및 지역적 차이에 관한 연구

서안나(Anna Seo),여창환(Change Hwan Yeo),김재익(Jae Ik Kim) 한국주택학회 2016 주택연구 Vol.24 No.3

본 연구에서는 최저주거기준 미달가구를 면적기준과 시설기준으로 구분하여 그들의 특성을 분석하였다. 분석을 위해 2010년 주거실태조사 자료를 사용하였으며 이항로짓모형으로 최저주거기준 미달가구의 사회경제적 특성뿐만 아니라 지역적 특성도 아울러 파악하였다. 분석결과 면적기준 최저주거기준 미달가구는 도시지역-청년층-공동주택의 문제로 요약되는 반면, 시설기준 미달가구는 농어촌지역-비청년층-단독주택의 문제로 요약되었다. 그리고 주택이외의 거처 즉, 기타거처의 거주자가 두 기준 모두 최저주거기준 미달가구가 될 확률이 가장 높게 나타났다. 본 연구는 이러한 분석결과를 바탕으로 최저주거기준 미달유형에 알맞은 정책적 대응방안이 요구되며 또한, 지역특성을 고려한 정책적 접근이 중요함을 강조하였다. In spite of the policy efforts to reduoe housing poverty, national housing poverty ratio measured by the ratio of households under sub-standard housing conditions was still high (10.6%) in 2010. This research is designed to analyze the current status of households in sub-standard national housing conditions both in terms of living area and facility standard based on the 2010 Korea Housing Survey data, and to suggest some useful housing policy implications. The characteristics of households under substandard housing condition in living area standard reveal that it is a problem of young households, renters, and non-house shelters. Consequently, it is a problem of urban area, rather than rural area. Meanwhile, the characteristics of households under substandard housing condition in facility standard demonstrate that it is a problem of old people and non-house shelters. In contrast with living area standard, it is a problem of rural area, rather than urban area. This research also proves that there exists a severe difference in type of substandard housing conditions among regions. Housing policy priority should be given differently between rural and urban areas, as well as among regions. Therefore, housing policy implementation should be led by local governments who better know local situations and conditions.

김춘수 전기시에 나타난 감각의 운용

서안나 ( Seo An-na ) 한국언어문화학회(구 한양어문학회) 2012 한국언어문화 Vol.0 No.49

The purpose of this study is to reveal the sense of this parameter appear in the poem, separated Chunsu Kim electricity. Sense of the operating characteristics of the electricity of the artist in the first half of the poem appear comparable sense of the subject and the subject that is not related to the principal sensory control target standing on the predominance of sensory target by assimilation and. To select the target senses the sense of the subject`s visual dominance by the fixed target in the visual field by focusing on a single target, showing horizons of inelastic own. Enhanced sense of the subject, also personified natural objects visually mediated target ideation and. At this time, the way in which the auditory and tactile visual wigyehwa when placed in the auditory or tactile jueobu and predicate represents the change in the parameters of the function. Auditory or tactile jueobu when circumstances of time and space, the ability to enhance the appearance of the depicting the target or the behavior of the target formula. Position when on the other hand, the predicate and the subject of emotional empathy that parameter. Virtue of sadness, especially through hearing the `crying` deepen and strengthen`s idealized sense of the target. Has been heightened by ideation and sorrows of virtue personified the device for the non-polar to build. On the other hand, the second half of the poem works electric jeongyeonghwa visual visual Chang`an, unlike the work of the first half to solidify a single target, rather than the subject`s gaze moved visual chapters resilient. The overlap of the scenes involved with the securitization of the sense of the subject`s gaze is to give the poem a sense of depth. Partially exposed in-depth sense of being strengthened wigyehwa auditory and tactile and visual motility and sensory properties of the target specifically is revealed. Crack visual, tactile Final gestation reveals vision `visual auditory and tactile` visual `aspect. Than the bias of the visual, auditory, tactile, kinesthetic, kinesthetic sense of the variety of individual expression and by combining dynamic sensory experience of the subject has been implemented.

열기계적 분석법으로 측정된 레진 포뮬레이션의 경화 수축 특성

서안나 ( Ahn Na Seo ),이종현 ( Jong Hyun Lee ) 대한금속재료학회(구 대한금속학회) 2012 대한금속·재료학회지 Vol.50 No.9

Volume shrinkage behavior accompanying the cure of resin formulations might be a critical factor when assembly processes using polymer materials are considered. In this study, cure shrinkage behavior with respect to resin formulation type and heating method was measured on sandwich structure samples by a thermomechanical analyzer (TMA). Quartz, used as a cover material for the sandwich structure, indicated the coefficient of thermal expansion close to 0 ppm/℃. When a dynamic heating mode was conducted, a squeezeout region and a cross-linking region for each resin formulation could be separated clearly with overlapping differential scanning calorimeter results on the TMA results. In addition, a cure shrinkage dominant region and a thermal expansion dominant region in the cross-linking region were distinguished. Consequently, the degree of cure at the initiation of the thermal expansion dominant region was successfully measured. Measurement of all resin formulations indicated the thermal expansion behavior exceeded cure shrinkage before full cure.

김춘수 전기시의 수사법과 감각의 변모양상

서안나 ( An Na Seo ) 한국문학언어학회 2012 어문론총 Vol.57 No.-

김춘수 후기시에 나타난 감각 연구

서안나(Seo, An?Na) 한국비평문학회 2012 批評文學 Vol.- No.46

서구의 형이상학의 전통은 데카르트적 이분법적 사유에 뿌리를 두어 시각이 우세한 문화를 형성하였다. 원근법에 근거한 시각 중심주의가 창안한 감각의 위계화는 시각보다 비가시성인 소리인 청각이나 촉각을 시각에 종속시켜 도외시하였다. 그러나 소리의 문화는 19세기 후반부터 산업혁명으로 시각 예술과 청각 예술의 상호보완적 관계 속에서 감각의 교환을 통해 이미지의 청각화와 소리의 시각화 현상이 나타났다. 소리 즉 청각은 음향복제 미디어의 등장과 복사가 불가능한 음을 기록, 복사하고 저장할 수 있게 되어 축음기 등으로 음이나 음성을 시각화하여 소리의 비가시성을 가시화하였다. 이처럼 시각과 청각의 감각 교류는 김춘수의 후기시에서 청각성의 강화로 시각이 약화하여 ‘시각의 청각화’라는 감각의 전환을 보이고 있다. 김춘수의 후기시에서 드러나는 ‘시각의 청각화’ 양상은 두 가지 방식으로 리듬감을 형성하고 있다. 하나는 특정 통사구조의 반복을 통한 리듬감의 형성이고, 다른 하나는 언어 유희적인 통사 해체에 의한 질료적 음성의 리듬감 형성이다. 김춘수 후기시에서 리듬을 형성하는 청각의 양상은 시의 의미의 단일화와 통일성을 저해하는 요소로 작용하고 있다. 즉, 청각은 리듬과 밀접한 연관을 지녀 언어 이전의 음성 질료적인 차원의 원초성을 환기하고 있다. 이때 언어 이전의 음성 질료적인 차원의 리듬으로 드러나는 ‘시각의 청각화’는 김춘수의 역사인식이 그 바탕을 이루고 있음을 알 수 있다. ‘역사=이데올로기=폭력’이라는 시인의 역사인식은 역사와 이데올로기에 대한 폭력성을 언어와 언어, 언어와 사물을 분리해 세계의 원초성을 드러내는 질료적 음성을 통해 자유를 구가하는 탈근대적 감각을 보여주고 있다. The tradition of Western metaphysics is the reason for the Cartesian dichotomy formed the dominant culture rooted a couple of visual. Perspective on the visual center of attention created a sense of sequencing, sounds, auditory or tactile visually subordinate to the disregards. However, the sound of the culture from the late 19th century the complementary relationship of visual art and sound art from the Industrial Revolution in the sense of exchange was made. Was in exchange for the hearing of the image and the sound of visualization of phenomena of the senses. Sound ie hearing the media and the emergence of acoustic replicated copy is able to copy and save, record sound impossible to visualize the phonograph, sound or voice the sound of anti?Visibility was visualized. Time hearing "" sense of transition to strengthen the castle hearing these reviews during the exchange of visual and auditory senses of the artist in the show. Formation and rhythm hearing "of the" visual aspect of the artist revealed in the later poems in two ways. Aspects of hearing that hinder the unity and unification of the meaning of a poem Chunsu Kim formed a rhythm in the later poems, and factor. In other words, the auditory consonant with previous language had followed closely associated with the rhythms of voice matter?dimensional circle ventilation. Of the language previously exposed to the rhythm of voice matter?dimensional perspective of hearing "that form the basis of the recognition of the history of the artist can be seen that The history of the poet ‘history=ideology= violence’ post?modern sense of separation violence, language and languages, language and things about the history and ideology of the world revealing a consonant substance to obtain freedom through the voice recognition shows.

햅틱 장치를 이용한 비강 모델 변형 및 수치해석적 연구

서안나(Anna Seo),조계환(Gyehwan Jo),김성균(Sung-Kyun Kim),정승규(Seung-kyu Chung),김지인(Jee-In Kim) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12

In order to investigate causes of nasal discomforts during respiration, many numerical analysis methods have been utilized for analyzing nasal air flows. The results of the numerical analysis can be used in surgical treatments for removing the cause of discomforts of patients in clinical practice. In this study, numerical analysis methods with three-dimensional nasal cavity models were performed. The analysis models were generated by two different methods. The first method is called as a two-dimensional virtual surgical simulation with CT images and the nasal cavity model was constructed by deforming the CT images. The second method is called as a three-dimensional virtual surgical simulation based on a haptic device, because the surgical simulation can be directly exercised on the three-dimensional nasal cavity model. The two methods were executed and their performances were compared. It was demonstrated that the three-dimensional virtual surgical simulation could be completed in a single day while the two-dimensional virtual surgical simulation was completed a single week.

주거비 과부담 임차가구의 특성과 이질성에 관한 연구

서안나 ( Anna Seo ),김재익 ( Jae Ik Kim ) 주택도시보증공사 2019 주택도시금융연구 Vol.4 No.2

본 연구는 과도한 주거비 부담으로 주거불안 상태에 놓인 임차가구들의 특성을 파악함으로써 이들에게 효과적이고 적절한 정책방향을 도출하는데 기초정보를 제공하는 것을 주된 목적으로 한다. 2016년 주거실태조사 자료를 기반으로 임차가구를 추출하여 그들의 주거비부담 수준을 국제적 기준에 입각하여 30% 이하, 30%∼50%, 50% 이상 등 세 범주로 분류하고 이항로짓모형을 이용하여 그들의 특성을 상호 비교분석하였다. 분석결과 일반가구와 주거비 과부담계층의 차이가 컸으며, 또 주거비가 과도한 가구와 심각한 가구의 차이도 생애주기, 주택유형, 융자유무 등의 측면에서 적지 않은 것으로 나타났다. 이러한 차이는 주거안정을 위한 주택정책이 대상에 따라 차별적으로 적용되어야만 함을 시사한다. Large portion of households suffer from unstable housing conditions due to high burden of housing costs. The socio-economic characteristics of the households should be identified for the implementation of the effective policy alternatives. This research is designed to analyze the current status of households under excessive and severe housing cost burden compared to other households using binary logit model. There are two important findings derived from this study. First, housing affordability problems are severe to senior group, private-rental housing dwellers, apartment dwellers, and non-capital region. Second, some meaningful differences between groups who suffer excessive housing cost burdens and severe cost burden are identified in terms of life cycle of household, type of house, and rental finance. These differences indicates that beg different housing policy priority needs to be implemented in accordance with the subject.

3차원 비강 가상 수술을 위한 사용자 인터페이스

서안나(Anna Seo),김래현(Laehyun Kim),김지인(Jee-In Kim) 한국컴퓨터그래픽스학회 2014 한국컴퓨터그래픽스학회 학술대회 Vol.2014 No.7

현대시의 디지털 매체 수용과 시적 패러다임 변화 양상

서안나 ( An Na Seo ) 한국언어문화학회 2014 한국언어문화 Vol.0 No.55