• Journal of The Korean Association of Information Education
• /
• v.1 no.2
• /
• pp.45-56
• /
• 1997

A design of Advisory Tutoring Agent(ATA) is proposed to help a student on the basis of a student-oriented discovery learning, The agents adaptively build a student model and interact with a student as well as each other to give a piece of advice at a proper time. The appropriateness of advice depends on the agents' reasoning sod interaction performed based on the student model. domain knowledge, teaching strategy, and user-friendly interface. The design has been applied to a simple English learning environment.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2002.04a
• /
• pp.469-472
• /
• 2002

자바의 Jini 기술을 이용하여 네트웍에 분산된 Java 컴포넌트 소프트웨어를 동적으로 통합하기 위한 방법론을 제안한다. 통합대상 개별 컴포넌트는 Jini 인터페이스(interface)를 구현하도록 설계하거나 혹은 기존 컴포넌트를 포장한 것으로서 네트웍에 구성된 Jini federation 에 Jini Service 오브젝트로서 공개된 것이다. 통합의 주체는 Service Discovery Manager 와 같은 특별한 Jini 헬퍼클래스 기반으로 작성된 클라이언트 프로그램이다. 클라이언트는 지정된 조건 (Entry 오브젝트)을 충족하는 컴포넌트 소프트웨어를 네트웍으로부터 Service Template를 이용하여 검색, 다운로드 한 후 단일한 GUI 를 가지는 프로그램에 통합한다. 필요한 컴포넌트만을 필요할 때 사용할 수 있고, 영구 설치의 필요성이 없으므로 소프트웨어 개발과 배포에 대한 새로운 관점을 제시할 것으로 판단된다.

• BMB Reports
• /
• v.41 no.11
• /
• pp.757-764
• /
• 2008

The genomic sequences of a huge number of species have been determined. Typically, these genome sequences and the associated annotation data are accessed through Internet-based genome browsers that offer a user-friendly interface. Intelligent use of the data should expedite biological knowledge discovery. Such activity is collectively called data mining and involves queries that can be simple, complex, and even combinational. Various tools have been developed to make genome data mining available to computational and experimental biologists alike. In this mini-review, some tools that have proven successful will be introduced along with examples taken from published reports.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
• /
• v.7 no.4
• /
• pp.159-167
• /
• 2014

Local device-to-device (D2D) communication between two smart mobile devices is becoming increasingly popular. The first key step in starting a D2D communication is to discover and identify the remote target device to establish a link. However, existing device discovery mechanisms either require users to explicitly identify the ID of the target device or rely on inaccurate beamforming technology. This paper presents two novel device identification algorithms using a variety of embedded sensors. The algorithms only require that users to point two devices towards each other. This paper describes the algorithms, analyzes their accuracy using analytical models, and verifies the results using simulations.

• Proceedings of the Korean Vacuum Society Conference
• /
• 2013.08a
• /
• pp.87-87
• /
• 2013

The interface between nanomaterials and biosystems is emerging as one of the broadest and most dynamic areas of science and technology, bringing together biology, chemistry, physics and many areas of engineering, biomedicine. The combination of these diverse areas of research promised to yield revolutionary advances in healthcare, medicine, and life science. For example, the creation of new and powerful nanosensors that enable direct, sensitive, and rapid analysis of biological and chemical species can advance the diagnosis and treatment of disease, discovery and screening of new drug molecules. Nanowire based sensors are emerging as a powerful and general platform for ultrasensitive and multiplex detection of biological and chemical species. Here, we present the studies about noble metal nanowire sensors that can be used for sensitive detection of a wide-range of biological and chemical species including nucleic acids, proteins, and toxic metal ions. Moreover, the optical and electrochemical applications of noble metal nanowires are introduced. Noble metal nanowires are successfully used as plasmonic antennas and nanoelectrodes, thereby provide a pathway for a single molecule sensor, in vivo neural recording, and molecular injection and detection in a single living cell.

• Journal of the Korea Society of Computer and Information
• /
• v.25 no.6
• /
• pp.109-117
• /
• 2020

An edutainment system aims to help learners to recognize problems effectively, grasp and classify important information needed to solve the problems and convey the contents of what they have learned. Edutainment contents can be usefully applied to education and training in the both scientific and industrial areas. Our present work proposes an edutainment system that can be applied to a drug discovery process including virtual screening by using intuitive multi-modal interfaces. In this system, a stereoscopic monitor is used to make three-dimensional (3D) macro-molecular images, with supporting multi-modal interfaces to manipulate 3D models of molecular structures effectively. In this paper, our system can easily solve a docking simulation function, which is one of important virtual drug screening methods, by applying gaming factors. The level-up concept is implemented to realize a bio-game approach, in which the gaming factor depends on number of objects and users. The quality of the proposed system is evaluated with performance comparison in terms of a finishing time of a drug docking process to screen new inhibitors against target proteins of human immunodeficiency virus (HIV) in an e-drug discovery process.

• The Journal of Information Systems
• /
• v.15 no.1
• /
• pp.1-20
• /
• 2006

Peer-to-peer systems (P2P) are rapidly growing in importance on the Internet environment, quickly extending the range of their usage. However, peer-to-peer systems have not been widely applied in electronic commerce because they have not been established as an appropriate business model. Therefore, we firstly review the previous research relevant to peer-to-peer systems, and then analyze the business models for P2P systems presented by previous researchers. Furthermore, this study categorizes major issues in terms of the technical and business model aspects. On the basis of these reviews, we develop P2P electronic commerce systems based on the file sharing method between users, focusing on user interface friendliness. A developed P2P electronic commerce systems are programmed by using the C# based on the Microsoft.net solution. A database is implemented using the MSSQL2000. A main application technology is designed that P2P electronic commerce systems make it possible. for user to extend into BtoB Solution by using WSDL (Web Services Description Language), UDDI (Universal Description, Discovery, and Integration) and the XML that is a document for users. User interface is made as form of Internet messenger for a user's convenience and is possible to develop into a commodity transaction system based on XML. In this study, it is possible for the P2P electronic commerce system to have extended application to fields such as Internet shopping mall and property transaction in a nonprofit organization, a public institution and a large scale nonprofit institution that have a similar structure as compared with a structure of a nonprofit educational institution.

• Journal of Adhesion and Interface
• /
• v.24 no.1
• /
• pp.36-40
• /
• 2023

A van der Waals material refers to a material having a two-dimensional layered structure composed of van der Waals bonds with weak interlayer bonding. The research based on heterojunction structures using such van der Waals two-dimensional materials has been steadily studied since the discovery of graphene. Herein, this paper reports a van der Waals heterojunction -based field-effect transistor device based on monolayer single crystalline MoSe2 grown by atmospheric pressure chemical vapor deposition. We found that MoSe₂ grown under optimized process conditions did not have atomic-level defects and the transistor devices incorporating MoSe₂ also showed excellent characteristics.

• Proceedings of the Korean Institute of Intelligent Systems Conference
• /
• 2003.09a
• /
• pp.11-15
• /
• 2003

Amount of biological data information has been increasing exponentially. In order to cope with this bio-information explosion, it is necessary to construct a biological data information integration system. The integration system could provide useful services for bio-application developers by answering general complex queries that require accessing information from heterogeneous bio data sources, and easily accommodate a new database into the integrated systems. In this paper, we analyze architectures and mechanisms of existing integration systems with their advantages and disadvantages. Based on this analysis and user requirement studies, we propose an integration system framework that embraces advantages of the existing systems. More specifically, we propose an integration system architecture composed of a mediator and wrappers, which can offer a service interface layer for various other applications as well as independent biologists, thus playing the role of database management system for biology applications. In other words, the system can help abstract the heterogeneous information structures and formats from the application layer. In the system, the wrappers send database-specific queries and report the result to the mediator using XML. The proposed system could facilitate in silico knowledge discovery by allowing combination of numerous discrete biological information databases.

• Journal of the Korean Society for Library and Information Science
• /
• v.47 no.4
• /
• pp.5-23
• /
• 2013

The purpose of this study is to examine the functions and features of SearchWorks developed as the Next Generation Library Catalog by Stanford University Libraries. It was designed to fully represent the needs and search behaviors of users, with Blacklight, an open source software. Its main features are not different from those standard functions supplied by other commercial packages of Next Generation Library Catalogs, and its continuing improvement and changes, including the addition and expansion of more useful functions and the removal of unnecessary ones, have been observed since the introduction of a beta version in 2010.