A novel arsenic compound, As406 attenuates 3 -methylcholanthrene toxicity in human keratin ocytes by decreasin gcytochrome P4501A 1 expression

LIM Dae- Seog,KIM Chong-Kook,BAE il-ju,BAE Sumi,MIN Hyun-Jin,AHN Woong Shick 大韓藥學會 2005 大韓藥學會 總會 및 學術大會 Vol.2005 No.2

Networked Robots using ATLAS Service-Oriented Architecture in the Smart Spaces

Sumi Helal,Raja Bose,Shinyoung Lim,Hyun Kim 한국지능시스템학회 2008 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.8 No.4

We introduce new type of networked robot, Ubiquitous Robotic Companion (URC), embedded with ATLAS Service-oriented architecture for enhancing the space sensing capability. URC is a network-based robotic system developed by ETRI. For years of experience in deploying service with ATLAS sensor platform for elder and people with special needs in smart houses, we need networked robots to assist elder people in their successful daily living. Recently, pervasive computing technologies reveals possibilities of networked robots in smart spaces, consist of sensors, actuators and smart devices can collaborate with the other networked robot as a mobile sensing platform, a complex and sophisticated actuator and a human interface. This paper provides our experience in designing and implementing system architecture to integrate URC robots in pervasive computing environments using the University of Florida's ATLAS service-oriented architecture. In this paper, we focus on the integrated framework architecture of URC embedded with ATLAS platform. We show how the integrated URC system is enabled to provide better services which enhance the space sensing of URC in the smart space by applying service-oriented architecture characterized as flexibility in adding or deleting service components of Ubiquitous Robotic Companion.

Control of Semiconducting and Metallic Indium Oxide Nanowires

Lim, Taekyung,Lee, Sumi,Meyyappan, M.,Ju, Sanghyun American Chemical Society 2011 ACS NANO Vol.5 No.5

<P>Oxide semiconductors are candidates for chemical sensors, transparent electrodes, and electronic devices. Here, we have investigated metal-to-semiconductor transitions during In<SUB>2</SUB>O<SUB>3</SUB> nanowire growth with variations in the O<SUB>2</SUB> gas rate. Photoluminescence and current–voltage characteristics of In<SUB>2</SUB>O<SUB>3</SUB> nanowire transistors have been used to understand the transition behavior. The proportion of metallic nanowires to semiconducting nanowires significantly changes from 80:20 to 25:75 when the O<SUB>2</SUB> fraction in argon increases from 0.005% to 0.2%. We believe that excessive oxygen vacancies at low O<SUB>2</SUB> gas rates increase the conductivity and thereby the number of nanowires with metallic characteristics. With an increase in oxygen flow, the oxygen vacancies in the nanowires are substituted with oxygen and the subsequent reduction in oxygen vacancies increases the number of semiconducting nanowires. The threshold voltage of transistors fabricated with semiconducting nanowires shifts in a positive direction by about +3.3 eV between nanowires grown with 0.005% and 0.2% oxygen. The results here indicate that electrical and optical characteristics of oxide nanowires can be controlled by the amount of oxygen during growth instead of relying on conventional postgrowth high-temperature annealing or other postprocessing techniques.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/ancac3/2011/ancac3.2011.5.issue-5/nn200390d/production/images/medium/nn-2011-00390d_0004.gif'></P>

Inter-space Interaction Issues Impacting Middleware Architecture of Ubiquitous Pervasive Computing

Lim, Shin-Young,Helal, Sumi Korean Institute of Intelligent Systems 2008 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.8 No.1

We believe that smart spaces, offering pervasive services, will proliferate. However, at present, those islands of smart spaces should be joined seamlessly with each other. As users move about, they will have to roam from one autonomous smart space to another. When they move into the new island of smart space, they should setup their devices and service manually or not have access to the services available in their home spaces. Sometimes, there will conflicts between users when they try to occupy the same space or use a specific device at the same time. It will also be critical to elder people who suffer from Alzheimer or other cognitive impairments when they travel from their smart space to other visited spaces (e.g., grocery stores, museums). Furthermore our experience in building the Gator Tech Smart House reveals to us that home residents generally do not want to lose or be denied all the features or services they have come to expect simply because they move to a new smart space. The seamless inter-space interaction requirements and issues are raised automatically when the ubiquitous pervasive computing system tries to establish the user's service environment by allocating relevant resources after the user moves to a new location where there are no prior settings for the new environment. In this paper, we raise and present several critical inter-space interactions issues impacting middleware architecture design of ubiquitous pervasive computing. We propose requirements for resolving these issues on seamless inter-space operation. We also illustrate our approach and ideas via a service scenario moving around two smart spaces.

Surface Modification of Oxide Nanowires by Nitrogen Plasma

Lim, Taekyung,Lee, Sumi,Suh, Misook,Ju, Sanghyun The Electrochemical Society 2011 Electrochemical and solid-state letters Vol.14 No.5

Framework Design of Pervasive Computing System for Inter Space Interactions between Private and Public Smart Spaces

Lim, Shin-Young,Chung, Lawrence,Helal, Sumi,Yang, Hen-I Korean Institute of Intelligent Systems 2009 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.9 No.3

In this paper, design of framework architecture of pervasive computing system providing seamless inter space interactions between private and public smart spaces is presented. The seamless inter space interaction issues are related to establishing user's service environment by allocating relevant resources in a new location where there are no prior settings for the user or where there are current users already being served in the new location. In the realm of pervasive computing, we can have different types of smart spaces, offering proactive and intelligent services, which are islands of smart spaces independent from each other. As users move about, they will have to roam from private smart space to public smart space and vice versa. When they enter a new island of smart space, they will have to setup their devices and service manually to get the same or different services they had at the previous location. Users might be living in a non-pervasive computing environment because this manual operation is inappropriate to its generic features of proactive and intelligent services of pervasive computing. The framework architecture will provide seamless inter space interactions initiated by changes in users' location to acquire negotiations of resources for new and current residents regarding service provision with limited available networked devices.

Photodynamic effects of Radachlorin on cervical cancer model

LIM Dae-Seog,BAE Sumi,LEE Ae-Ju,AHN Woong Shick 大韓藥學會 2005 大韓藥學會 總會 및 學術大會 Vol.2005 No.2

다차원 커뮤니케이션을 통한 공간디자인의 공감각적 표현 연구 : 2010 상하이 엑스포 파빌리온의 공간표현 중심으로

정수미(Sumi Jeong),임경란(Kyungran Lim) 한국HCI학회 2012 한국HCI학회 학술대회 Vol.2012 No.1

하드웨어와 콘텐츠의 결합은 새로운 가치를 창출하여 공간에서 심리스(Seamless)한 경험을 강화한다. 이는 공간에 대한 물리적 한계를 발상의 전환과 문화적 양상들의 융합을 통해 확장하고 있음을 인식하여, 공간의 확장 가능성을 고찰하였다. 이를 위해서 공간의 개념을 개념적 관점과 관념적 관점의 연장으로서 바라보고 속성을 도출하였으며, 공간 패러다임의 변화 특성을 상하이 엑스포 파빌리온 공간표현을 중심으로. 분석하였다 공간은 이용자의 감성과 구성체계의 다차원 화를 통해 상호작용성, 이야기, 정보, 소통 등이 공간 안에서 매쉬 업(mash-up)되어 비가시적인 형태로 공명하는 개념 확장이 이루어지고 있음을 파악하였다. The coupling of the hardware and contents by creating the new value intensifies the seamless experience in the space. Through the change of conception and the conversions of cultural aspects, it enables inspector to consider expandability about the physical limit in the space. The method of research is regarded as the concept of the space is to enlarge concept and idea, so that deducting characteristic about the concept of space also the characteristic of change of the space paradigm is realized with Shanghai Expo pavilion spatial representation. The expansion of the concept of space is grasped through the sensibility of the user and multi-dimensional of the hierarchy as interaction, story, information and communication could be enlarge to mash-up with the non-visual form in the space.

Inter-space Interaction Issues Impacting Middleware Architecture of Ubiquitous Pervasive Computing

Shinyoung Lim,Sumi Helal 한국지능시스템학회 2008 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGE Vol.8 No.1

We believe that smart spaces, offering pervasive services, will proliferate. However, at present, those islands of smart spaces should be joined seamlessly with each other. As users move about, they will have to roam from one autonomous smart space to another. When they move into the new island of smart space, they should setup their devices and service manually or not have access to the services available in their home spaces. Sometimes, there will conflicts between users when they try to occupy the same space or use a specific device at the same time. It will also be critical to elder people who suffer from Alzheimer or other cognitive impairments when they travel from their smart space to other visited spaces (e.g., grocery stores, museums). Furthermore our experience in building the Gator Tech Smart House reveals to us that home residents generally do not want to lose or be denied all the features or services they have come to expect simply because they move to a new smart space. The seamless inter-space interaction requirements and issues are raised automatically when the ubiquitous pervasive computing system tries to establish the user's service environment by allocating relevant resources after the user moves to a new location where there are no prior settings for the new environment. In this paper, we raise and present several critical inter-space interactions issues impacting middleware architecture design of ubiquitous pervasive computing. We propose requirements for resolving these issues on seamless inter-space operation. We also illustrate our approach and ideas via a service scenario moving around two smart spaces.

수정진동자센서 어레이를 이용한 연기감지 연구

윤수미(Sumi Yoon),홍동기(Dong-Ki Hong),강혜림(Hye-Lim Kang),김원효(Won-Hyo Kim),성우경(Woo Kyeong Seong),이국녕(Kook-Nyung Lee) 대한전기학회 2019 대한전기학회 학술대회 논문집 Vol.2019 No.7