복합상업공간의 이동행태에 따른 주시영역에 관한 연구 -아이트래킹 기법을 활용하여-

문보경 ( Moon Bokyung ),김주연 ( Kim Jooyun ) 한국공간디자인학회 2020 한국공간디자인학회논문집 Vol.15 No.8

(Background and Purpose) In Korea, the complex commercial space has been developing rapidly since the mid- to late 2000s. With the active development of urban malls, large-scale commercial spaces have been created and combined into various forms. The complex commercial space is made up of a large and extensive space, which makes it difficult for its users to easily grasp the overall spatial shape. The Complex Space Plan and a variety of visual information exposed to space users also cause confusion. Users can widely accept other visual information if the visual elements that make up the space communicate the purpose, direction, and angle of the space smartly. Thus, this study aimed to identify the space zones observed when moving by obtaining quantitative information of the eyes by using eye-tracking techniques based on users’ mobile behavior in complex commercial spaces. (Method) An experimental study was conducted using eye-tracking techniques to derive characteristics that catch the user's attention according to their mobile behavior in complex commercial spaces. The user understood free movement and purpose movement by distinguishing between the purpose and non-purpose movement when moving, and considered the complex commercial space for the subject of the experiment and the prospect-tracking method. The researchers selected COEX, a representative complex commercial space, as the site for the experiment. The subjects were selected and were to perform without beauty lenses, astigmatism, or color blindness to track the eye movement without visually disqualifying reasons. (Result) Analysis of the main areas of the natural movement and navigational movement showed that the order of the areas with high visibility was common to the central and upper central areas, and to the right of the center. The low-maintenance area rose to the left, center, and bottom right. (Conclusion) An analysis of the area that was observed according to the movement behavior showed that the area of the eye was similar to that of the navigational and natural movement. The results of high concentration and attention in the center and upper center were derived. Although natural and navigational movement have different purposes, visual search for space can be interpreted as a similar area in user mobility behavior. The results from the experimental study revealed familiar and focused areas of the user's gaze, and they will act as important areas in space composition, while important design elements will be placed in areas where user concentration takes place.

기술사회의 라이프스타일 기반 스마트 주거 공간디자인에 관한 연구

문보경 ( Bokyung Moon ),김주연 ( Joo Yun Kim ),안진근 ( Jinkeun Ahn ),황용섭 ( Yongseup Hwang ) 한국공간디자인학회 2015 한국공간디자인학회논문집 Vol.10 No.2

(Background and Purpose) Residential spaces have been evolving continuously as a result of social, cultural, environmental, and technological changes, and human lifestyles have been in sync with these changes. Thanks to advancements in digital and information technology, residential spaces in the modern age are structures characteristic of a complex spatial system that facilitates human interaction and delivers new experiences. Thus, technology blurs the various boundaries of space. Accordingly, a new and smart residential space that functions actively and independently has emerged. Predictions regarding residential spaces and their formative changes have considerable significance in space design. The purpose of this study is to examine the features and types of smart residential spaces that are forming and changing according to changes in human lifestyles in the modern technological society. The directionality in design strategies for such spaces is presented in this paper. (Method) First, a literature review was employed to understand lifestyle changes that occurred after industrialization, their interactions with residential spaces, and modern people’s residential awareness. Second, an investigation was conducted to understand changes in residential forms that have accompanied technological advancement; contemporary types and features of smart residential spaces were also examined. Third, a strategic framework design was established based on the characteristics of smart residences; further, an investigation and analysis of previous cases regarding the smart residential environment were performed. (Results) Smart residential spaces form environments and structures that correspond to the life patterns of residents. An aesthetic and eco-friendly residence comes from a harmonious combination of natural materials and smart technologies. Additions to preexisting physical spaces ensure various information accessibilities; further, changes to residential spaces and environments reflect the need for unlimited sharing of information that does not require moving to a different location. The number of people seeking the conveniences of the smart residential environment is increasing. Furthermore, the smart residential environment requires a stronger technology-based approach. However, as technology becomes generalized and polished, emotional prerequisites associated with designs will definitely increase. (Conclusions) The primary concerns underlying the construction of residential spaces are humans and communications between humans and spaces-not the combination of spaces and technologies. Thus, construction is performed in response to the expansion of human consciousness as a representational method that reflects humans’ behaviors as they pertain to spaces. This study involved the exploration of a limited number of case studies; however, its findings may prompt various follow-up studies on smart residential space design.

Highly porous carbon-coated silicon nanoparticles with canyon-like surfaces as a high-performance anode material for Li-ion batteries

Kim, Bokyung,Ahn, Jihoon,Oh, Yunjung,Tan, Jeiwan,Lee, Daehee,Lee, Jin-Kyu,Moon, Jooho The Royal Society of Chemistry 2018 Journal of Materials Chemistry A Vol.6 No.7

<P>This paper reports unique highly porous carbon-coated Si nanoparticles with canyon-like surfaces (cpSi@C) prepared by pseudomorphic transformation of wrinkled silica nanoparticles (WSNs)<I>via</I>magnesiothermic reduction and subsequent pyrolytic deposition of carbon. The pseudomorphic transformation of soft-template-based WSNs with large pore dimensions provides Si nanoparticles with additional porosity owing to their unique canyon-like surface structure. This degree of porosity is not achievable using conventional soft-template-derived porous SiO2materials owing to their smaller pore dimensions. The free volume space in the cpSi@C particles is 419% of their Si volume, which is sufficient to fully accommodate Si volume expansion during cycling. Furthermore, the conformal carbon coating allows cpSi@C to enhance its electrical conductivity. cpSi@C exhibits a high specific charge capacity of 822 mA h g<SUP>−1</SUP>after 200 cycles at a current density of 0.5 A g<SUP>−1</SUP>, which is 59.1% of the initial charge capacity. A comparative study with respect to other porous Si-based materials clearly revealed that the unique canyon-like structure synthesized in this study, with its additional pore volume and smaller Si dimensions, exhibits enhanced electrochemical performance.</P>

기존 ViRE 프로세스 개선을 위한 Use Case 지향 요구공학

박보경 ( Bokyung Park ),문소영 ( Soyoung Moon ),김기두 ( Kidu Kim ),김보연 ( Boyeon Kim ),김영철 ( R. Youngchul Kim ) 한국정보처리학회 2012 한국정보처리학회 학술대회논문집 Vol.19 No.2

전통적인 소프트웨어 개발에서는 초기 요구사항을 정확히 판단하고 분석하는 것이 중요하다. 이를 위해 B.Boehm은 가치혁신 요구공학을 제안하지만, 이는 기존의 개발 방법 기반이다. 본 논문에서는 가치혁신 요구공학 개선을 위해, 유스케이스 기반의 요구공학 방법을 제시와, 요구사항과 유스케이스의 우선순위 도출 방법을 제안한다. 이를 위해 어려운 시스템 요소(하드웨어와 소프트웨어)를 기본 단위인 유스케이스 요소와, 유스케이스 점수(Use Case Point) 개념을 적용하여 유스케이스 중요도를 도출한다. 그 기본 단위 내의 분석을 통해 쉽게 요구사항 추출 및 우선순위화를 한다. 이는 테스트 단계에서 우선순위화된 테스트 케이스를 적용이 가능한다고 본다.

[우수논문] 객체지향 코드의 정적 분석을 위한 Tool-chain화 사례 연구

박보경(Bokyung Park),권하은(Haeun Kwon),양효석(Hyeoseok Yang),문소영(Soyoung Moon),김영수(Youngsoo Kim),김영철(R. Youngchul Kim) 한국정보과학회 2014 한국정보과학회 학술발표논문집 Vol.2014 No.6

과학적 안전거리 도출을 위한 수소 제트화염 실증연구 설비 구축

김보경(Bokyung Kim),김광석(Kwang Seok Kim),이재훈(Jae Hun Lee),최성준(Seong Jun Choi),엄석화(Seok Hwa Eom),문종삼(Jong Sam Moon) 한국가스학회 2017 한국가스학회 학술대회논문집 Vol.2017 No.5

위험정보에 관한 미디어 보도의 정확성 연구:발암물질 위험을 중심으로

윤문영,좌보경,백혜진,Moon-young Yun,Bokyung Jwa,Hye-Jin Paek 한국헬스커뮤니케이션학회 2012 헬스커뮤니케이션연구 Vol.7 No.-

사람들은 주로 미디어를 통해 위험에 대한 정보를 습득하고 이해하기 때문에 미디어는 위험에 대한 정확한 정보를 제공해야 한다. 따라서 본 연구는 현대 사회에서 중요한 위험 이슈인 ‘발암물질’을 주제로 선정하고 위험 정보에 대한 미디어의 정확성을 진단해 보고자 하였다. 2003 년부터 2012 년 6 월까지 국내 11 개 일간지에서 보도된 641 개의 기사를 대상으로 내용분석을 실시 하였으며, 이를 위해 국내 검색 엔진 1 위인 네이버를 통하여 '발암물질'이라는 키워드로 기사를 검색, 수집하였다. 보도의 정확성을 판단하기 위한 지표로써 국제 암 연구기관(IARC: International Agency for Research on Cancer)에서 제공하는 정보를 바탕으로 ‘발암물질 급수표기’, ‘발암물질 명 표기’항목을 선정하였으며 ‘기준치 표기’, ‘전문기자 유무’ 항목을 추가한 총 네 가지 항목으로 분석을 진행 하였다. 연구 결과, ‘발암물질 급수’가 정확하게 표기된 기사는 전체 기사의 21.5%에 그쳤으며, 20%의 기사들은 ‘발암물질 명’을 부정확하게 표기하고 있었다. 또한 약 41%의 기사만이 ‘기준치’를 제시하였으며, ‘전문기자’가 작성한 기사의 비율은 전체 기사의 1%에도 미치지 못하는 것으로 나타났다. 이러한 연구 결과는 발암물질 위험과 관련된 미디어 보도에 있어서 그 정보의 정확성이 더욱 개선 될 필요가 있다는 것을 시사하였다. Since people often learn and understand information about risks through media, the media should provide accurate risk information. This study’s purpose is to examine how accurately media provide information on the important risk issue of carcinogenic hazards. A content analysis was conducted on 641 news stories in eleven daily newspapers from a ten-year period (2003 and 2012). These newspapers were searched and the news story data were collected through Naver, Korea’s number one search engine. The accuracy of media coverage was operationally defined as accuracy in the following categories; (1) labeling of carcinogens; (2) classifications in terms of carcinogenic risks (by IARC: International Agency for Research on Cancer); (3) presence of safety standards; and (4) use of expert reporters. Descriptive statistics show that, out of the total news story samples, only 21.5% accurately classified the risks they featured, while 20% mislabeled the carcinogens they featured. About 41% of the total story samples indicated the specific safety standards of particular carcinogens. In addition, less than 1% of the total stories were written by expert reporters. The results indicate that there is an urgent need to improve the news media’s accuracy in providing carcinogenic hazard information.

Nutraceutical Capacity of Common American Commercial Beverages

Kyung Mi Yoo,BoKyung Moon,Cy Lee 한국식품영양학회 2011 한국식품영양학회 학술대회논문집(학술심포지움) Vol.2011 No.06

Salami-like Electrospun Si Nanoparticle-ITO Composite Nanofibers with Internal Conductive Pathways for use as Anodes for Li-Ion Batteries

Lee, Daehee,Kim, Bokyung,Kim, Joosun,Jeong, Sunho,Cao, Guozhong,Moon, Jooho American Chemical Society 2015 ACS APPLIED MATERIALS & INTERFACES Vol.7 No.49

<P>We report novel salami-like core–sheath composites consisting of Si nanoparticle assemblies coated with indium tin oxide (ITO) sheath layers that are synthesized via coelectrospinning. Core–sheath structured Si nanoparticles (NPs) in static ITO allow robust microstructures to accommodate for mechanical stress induced by the repeated cyclical volume changes of Si NPs. Conductive ITO sheaths can provide bulk conduction paths for electrons. Distinct Si NP-based core structures, in which the ITO phase coexists uniformly with electrochemically active Si NPs, are capable of facilitating rapid charge transfer as well. These engineered composites enabled the production of high-performance anodes with an excellent capacity retention of 95.5% (677 and 1523 mAh g<SUP>–1,</SUP> which are based on the total weight of Si-ITO fibers and Si NPs only, respectively), and an outstanding rate capability with a retention of 75.3% from 1 to 12 C. The cycling performance and rate capability of core–sheath-structured Si NP-ITO are characterized in terms of charge-transfer kinetics.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/aamick/2015/aamick.2015.7.issue-49/acsami.5b08401/production/images/medium/am-2015-08401v_0007.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/am5b08401'>ACS Electronic Supporting Info</A></P>

전처리 조건에 따른 여주(Momordica charantia L.) 초절임의 쓴맛 감소와 품질평가

박효순(HyoSun Park),문보경(BoKyung Moon),김선아(Suna Kim) 한국식품과학회 2016 한국식품과학회지 Vol.48 No.5

본 연구는 여주(Momordica charantia L.) 의 강한 쓴맛으로 인해 음식재료로서의 활용이 제한적인 어려움이 있는 점을 개선하기 위해 전처리 조건을 달리하여 여주초절임을 제조한 후 총폴리페놀, 총플라보노이드, L-아스코브산, 유리아미노산 등의 함량을 분석하고, 산화방지 활성과 알파글루코시데이스 억제 활성을 측정하고, 색도, 텍스처, 관능검사를 수행하여 여주초절임의 쓴맛 저감효과와 품질 평가를 수행하였다. 여주 초절임의 유효성분 변화 중 총폴리페놀과 총플라보노이드는 5%-1분군이 가장 높은 함량으로 나타났으며, L-아스코브산 함량은 대조군이 높아 전처리 시행 시 L-아스코브산 손실이 있었다. 대조군과 5%-3분군의 총 유리아미노산의 함량 분석은 대조군에 비해 5%-3분군이 증가하는 경향을 보였으며, 특히 아르지닌과 글루탐산은 다른 유리아미노산들에 비해 높은 증가를 나타냈다. 산화방지 활성과 알파글루코시데이스 억제 활성에서 ABTS 라디칼 소거능과 DPPH 라디칼 소거능, 알파글루코시데이스 억제활성 모두 5%-1분군이 가장 높은 결과를 얻었으며, 이는 소금물 침지 및 데치기의 복합 전처리가 초절임 제조 후 산화방지 활성과 알파글루코시데이스 억제 활성을 높이는 효과적인 방법으로 사료된다. 색도 측정 결과 L값(lightness)은 실험군이 대조군보다 명도가 낮아지는 경향을 보였으며, a값은 전처리를 시행할수록 또 데치는 시간이 길수록 a값이 높아져 여주의 녹색이 퇴색되는 것으로 나타났고, b값은 황색이 낮게 나타났다. 경도 측정 결과 침지를 시행한 소금물의 농도와 데치는 시간 모두 경도에 영향을 주는것으로 나타났다. 관능검사에서 5%-3분군의 선호도가 높게 나타났으며, 색상을 제외한 조직감, 쓴맛 강도, 쓴맛 선호도, 전체적인 기호도에서 대조군과 실험군에서는 유의성이 있었으나 실험군 간 유의성은 없었다. 이는 초절임제조 전 소금물의 농도(1%, 5%)와 상관없이 20분간 침지한 후 데치기를 시행한 전처리 과정이 대조군보다 쓴맛은 감소하고 선호도가 증가함을 의미한다. 관능검사와 색도와 텍스처 측정을 통해 소금물의 농도와 상관없이 20분 침지 후 데치기를 시행하는 것이 쓴맛 저감 효과가 있는 결과를 얻었다. 그러나 여주초절임의 총폴리페놀, 총플라보노이드, ABTS와 DPPH 라디칼 소거 활성, 알파글루코시데이스 억제 활성의 결과가 5%-1분이 가장 높은 결과로 나타났다. 따라서 모든 연구 결과를 종합해 볼 때 관능검사에서 쓴맛 저감 효과가 있고 여주초절임의 유효성분과 산화방지 활성, 알파글루코시데이스 억제 활성 결과가 높은 5%-1분 조건이 가장 적합한 것으로 사료된다. 본 연구에서는 지금까지 여주의 쓴맛으로 인해 음식재료로서의 사용에 한계가 있었으나 위와 같이 쓴맛을 낮추는 전처리 조리조건을 제시함으로써 음식재료로서의 활용성을 증대할 수 있을 것이며, 나아가 쓴맛의 감소뿐만 아니라 유효성분의 파괴가 적은 여주 초절임 제품의 개발 가능성을 제시함으로써 다양한 가공식품으로의 개발 역시 가능할 것으로 사료된다. This study was performed to investigate the reduction in bitter taste and quality characteristics by pretreatments (brining; 1, 5% and blanching; 1, 3 min) in pickled bitter melon, respectively. We prepared picked bitter melon samples at 1%-1 min, 1%-3 min, 5%-1 min, 5%-3 min. Total polyphenol and total flavonoid contents were found to be the highest in 5%-1 min at 14.23±0.40 mg CE/g (dry) and 4.46±0.10 mg RE/g (dry), respectively. L-ascorbic acid level was the highest in control samples. Arginine and glutamic acid were increased by brining and blanching. ABTS and DPPH radical scavenging activity were found to be the highest at 43.60±0.40 and 44.88±0.20% at 5%-1 min, respectively. α-glucosidase inhibitory activity was the highest at 5%-1 min. The a value was statistically different, whereas L and b values were similar among different pretreatments. Hardness in pretreated samples was decreased as compared to that in the control. Among sensory evaluations, ‘color’ did not indicate any statistical difference, while ‘texture’, ‘bitterness preference’ and ‘overall preference’ increased with pretreatments, and ‘bitter intensity’ decreased.