• Electronics and Telecommunications Trends
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• v.26 no.4
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• pp.165-174
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• 2011

삼성전자와 한국전자통신연구원이 공동으로 기술개발에 성공하여 2006년 6월 국내에서 세계 최초로 서비스를 개시한 WiBro는 최대 전송속도 하향 75Mbps($2{\times}2$ MIMO)/상향 50Mbps($1{\times}n$ MIMO), 시속 250km/h로 이동하면서 사용할 수 있는 기술이다. 2011년 1분기 기준 전세계 90개국 195개 사업자가 WiBro 서비스를 제공 또는 준비 중인데, 최근 대규모 WiBro 사업자인 러시아 Yota와 미국 Clearwire가 LTE로의 전환 가능성을 시사하는 등 글로벌 WiBro 사업에 대한 위기감이 나타나고 있다. 본 고에서는 국내외의 WiBro의 시장 현황 및 전망을 살펴보고, 국내로의 시사점을 모색해보고자 한다.

• Electronics and Telecommunications Trends
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• v.27 no.2
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• pp.169-179
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• 2012

모바일 트래픽 폭증으로 인한 망 과부하와 서비스 품질 저하 이슈가 부각되면서 이에 대한 해결 방안으로 펨토셀이 새롭게 부상하고 있다. 전 세계적으로 펨토셀을 도입하는 사업자 수가 빠르게 증가하고 있으며 글로벌 장비업체뿐만 아니라 다양한 제조업체들이 펨토셀 시장에 진출하였다. 2012년에도 펨토셀 수요 증대 및 인지도 향상, 대규모 서비스 전개 등이 펨토셀 시장의 성장을 이끌 것으로 예상된다. 이러한 확산 추세에 힘입어 펨토셀은 향후 우회망 역할을 넘어 다양한 유무선 융합 서비스를 실현하고 새로운 수익 창출의 기회를 가져다 줄 것으로 기대된다. 본고에서는 펨토셀의 개념 및 관련 현황을 개략적으로 살펴보고, 국내외 펨토셀 업계 동향 및 시장 전망을 분석하여 시사점을 제시하고자 한다.

• International Journal of Human Ecology
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• v.7 no.2
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• pp.111-124
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• 2006

The purpose of this study was to analyze the differences in the health status of the divorced population according to their income status and to explain the social mechanisms. By analyzing 287 midlife men and women divorced within the last 5 years, we found a strong inverse relationship between their health and income status: the low-income divorced group was more liable to depression and poor physical health. Lack of social connections and having less hope for remarriage after getting a divorce were main factors explaining health vulnerability of the low income group among divorced. Further details have been discussed.

• Proceedings of the Korean Society for Bioinformatics Conference
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• 2004.11a
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• pp.203-209
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• 2004

Molecular docking using Lamarckian genetic algorithm of AutoDock 3.0 (AD3) was employed to understand in retrospect the selectivity of phenylaminopyrimidine (PAP) derivatives against the kinase domain c-Abl, implicated in chronic myelogenous leukemia (CML). The energetics of protein-ligand complex was scored using AD3 to identify active drug conformations while Ligplot and ligand protein contact (LPC) programs were used to probe schematic molecular recognition of the bound inhibitor to the protein. Results signify correlation between model and crystal structures of STI-571 compound or Imatinib (IM), a PAP derivative and now clinically proven for its efficacy in CML. A prospect active form Abl inhibitor scaffold from matlystatin class of compounds will be published elsewhere.

• Biomedical Science Letters
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• v.26 no.3
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• pp.136-148
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• 2020

A bispecific antibody (BsAb) is an artificial protein containing two kinds of specific antigen binding sites. BsAb can connect target cells to functional cells or molecules, and thus stimulate a directed immune response. Last several decades a wide variety of bsAb formats and production technologies have been developed. BsAbs are constructed either chemically or biologically, exploiting techniques like cell fusion and recombinant DNA technologies. There are over 100 different formats of bsAb so far developed, but they could be classified into the two main categories such as Fc-based (with a Fc region) bsAbs and fragment-based (without a Fc region) bsAbs. BsAb has a broad application prospect in tumor immunotherapy and drug delivery. Here, we present a brief introduction to the structure of antibody, pharmacological mechanisms of antibodies and the trend in the production technologies of therapeutic antibodies. In addition, we address a review on the current status of various bsAb format development and their production technologies together with global situation in the clinical studies of bsAb.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.27 no.3
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• pp.83-89
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• 2004

The object of this study is to survey present conditions, to analyze the development of bio-industry in northern area of Kyonggi province by the decision making method of the SWOT model, to suggest a plan for the prospect of continued development field and the location of industry, and to extract fundamental data for establishment of annual action and investment plan which can develop bio-industry. For the purpose of making a policy decision in national operation policy, business administration policy, and new product design, the research for extracting more objective and standard approach method should be continuously conducted.

• Proceedings of the Optical Society of Korea Conference
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• 2000.02a
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• pp.68-68
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• 2000

In this paper a very brief review of historical development of optical science and technology in China is presented. More attention has been pain on Modem Optics, which developed since 1950s. The recent development of optical science and technology in following fields are introduced. 1. Optical engineering and instrumentation (tracking theodolites, high speed cameras, satellite laser ranging systems, satellite flying attitude control, cameras for remote sensing, astronomical optical instrument) 2. Applied optics (adaptive optics, optical metrology, infrared optics, optical processing, optical holography) 3. Laser science and technology (ultrashort pulse lasers, UV-X ray lasers, high power laser facilities and laser fusion, laser isotope separation) 4. Laser and nonlinear materials (rare earth elements doped laser glasses and crystals, tunable laser crystals, borate series and organic nonlinear crystals) 5. Optoelectronic science and technology (Optical communication, optical data storage, optical computing) The current situation and developing prospect of optical and optoelectronic industry in China are presented. Furthermore it points out that the optical industry could be developed vigorously only if products development capacity is enhanced and new products industrialization is heightened. The main research and education institutions in the optics field in China, as well as the Chinese Optical Society (COS) are introduced.

• 제어로봇시스템학회:학술대회논문집
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• 1990.10a
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• pp.117-121
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• 1990

The control process involving pure time delays presents a continuing challenge to the control system engineer. The nonlinear nature of the delay which can be introduced into the system make the use of conventional control algorithms a poor prospect. The Smith Predictor was developed to alleviate this problem. Unfortunately the quality of control achieved with the Smith Predictor is known to be sensitive to modelling errors. Only recently have researchers attempted to quantify the Smith Predictor controller's robustness to modelling errors. In several studies stability boundaries were plotted as functions of errors in parameters. But the research results address the question of performance of Smith Predictor controllers, In this paper, the Rule based Expert Systems for performance improvement of the Smith Predictor controller are developed.

• The Korean Journal of Community Living Science
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• v.17 no.1
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• pp.155-163
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• 2006

The study was conducted to investigate the aesthetic characteristics expressed on the Prada Sports Fashion which has been strongly affected to fashion trend of domestic sports wear since the mid of 1990th, and to contribute to make domestic sports brand be competitive. The qualitative method using the materials such as fashion magazines and journals, information from the domestic fashion research center and internet, relating fashion books and journals etc, was used for the study. The results were as follows: First, use of heterogeneous design factors or coexistence of the past and the present were expressed as post-modernism effect. Second, strong moderation through the mimalism which has been dominated world fashion since 1990th was expressed. Third, high function including technology has been expressed. These aesthetic characteristics will be helpful for us to prospect 21c sports fashion which will be activated increasingly according to well-being life style.

• Archives of design research
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• v.21
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• pp.233-243
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• 1997

In 1970s, Computer Graphics of still and geometry changed computer Animation of image, and Computer Animation has diversely been used in movie, TV, fashion, sports, education, basic science, medical science, etc. by the development of LSI technology and the large size of computer in 1980s. Since Computer Animation was first used by movie of Futureworld in 1973, we easily experienced the essence of Computer Animation made of the Little Mermaid. Beauty and the Beast, the Lion King, Aladdin, etc. in Disney Animation and Terminator. Jurassic Park, the Mask, etc. in movie. And in other countries that have got the diversely special effect and knowhow in technology are effectively using the Computer Animation now. What situation we Korea are in now, if we compare the Computer Animation with that of other country using the progressive movie\ulcorner Although we first producted the movie title of Ticket, 10years ago, we have rarely been used it in movie, yet. Therefore, we know that it is very important for us to examine the historical and technical side for the purpose of overcoming the technological gap.