• The Korean Journal of Applied Statistics
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• v.10 no.2
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• pp.215-226
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• 1997

The purpose of the labor statistics survey is to collect materials on employment, wages and the working time and to analyze the trend of the labor situation. in this research, the stratification variables are industry and the size of establishment. The sample are selected by stratified one stage sampling method in order to produce the reliable estimates of labor statistics. For local labor statistics, we design the sample survey using the city and province as sub-population. So we are able to produce the local area estimates of labor statistics with respect to industry and the size of establishment.

• Proceedings of the Korea Water Resources Association Conference
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• 2005.05b
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• pp.1164-1168
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• 2005

최근에 홍수범람도나 재해지도를 작성하는 등 하천에 대한 범람해석의 연구가 활발히 진행되고 있는 실정이다. 1차원 하천범람해석은 홍수위를 산정하고 지리정보시스템을 이용하여 범람구역을 작성하는 경우가 일반적으로 적용되고 있다. 본 연구에서는 ArcView를 이용하여 광양항 유역특성에 대해 조사하고 홍수범람을 예측하기 위해 HEC-GeoRAS 및 HEC-RAS를 이용하여 홍수범람지역 및 수리특성을 분석하였다. 광양항 지역특성인 조석 및 다수의 유입지류가 존재하는 조건을 고려하기 위해 HEC-RAS 부정류 모의을 이용하여 수위를 분석하였다. 또한 기존 수치지도와 현 상태를 재측량한 성과를 합성하여 지형자료를 추출하여 지형적 오차를 방지하였다. 본 연구에서 1차원 하천 부정류 모의 결과는 각 측점에 대해 시간대별로 수리특성을 계산하였으며 최대수위는 EL. 3.05m로 산정되었다. 또한 유속과 유량이 음(-)의 값을 갖는 경우에 흐름 방향이 역전되므로, 측점 4040.969에서 흐름이 분기되는 것으로 판단되었다. 또한 대상구간에 대한 홍수범람해석을 HEC-GeoRAS 후처리과정을 이용하여 각 측점에 따라 시간별대로 산정하였다. 일부 하천구간 및 저지대의 경우에 침수되는 것으로 표시되었으며, 이것은 1차원 범람해석상의 한계로 판단되었다.

• Journal of KIISE:Information Networking
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• v.28 no.3
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• pp.297-308
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• 2001

In this paper, we design, validate and implement WTP(Wireless Transaction Protocol) using SDT(SDL Design Tool). We do modeling WTP protocol by SDL(Specification and Description Language), design and implement the environment function for the interface between the SDL system and the UDP platform and design APIs(Application Programming Interface). And we do conformance testing for WTP protocol software using ITEX(Interactive TTCN Editor and eXecutor). We write ATS(Abstract Test Suite) by TTCN(Tree and Tabular Combined Notation) and make ETS(Executable Test Suite) by the TTCN compiler supplied by ITEX.

• Korean Journal of Microbiology
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• v.30 no.6
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• pp.539-545
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• 1992

Recombinant plasmid pPLac15 determined both phosphoenolpyruvate-dependent phosphotransferase uptake of lactose and phospho-$\beta$-galactosidase (Moon et al., 1989). A restriction mapping of the pPLac15 was compiled with several restriction enzymes and a seriese of sub clones into pUC18 was constructed. From an analysis of the proteins produced by Escherichia coli cells of transformants containing each of the recombinant subclone plasmids, it was found that the gene for phospho-$\beta$-galactosidase in pUCI8 was expressed about 1.8-folds in E. coli.

• Journal of the Korea Computer Industry Society
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• v.6 no.3
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• pp.437-446
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• 2005

Workflow mining is a newly emerging research issue for rediscovering and reengineering workflow models from workflow logs containing information about workflow being executed on the workflow engine. This paper newly defines a workflow process reduction mechanism that formally and automatically reduces an original workflow process to a minimal set of activities, which was used proposed 'E-walk series analysis algorithm'. Main purpose of this paper is to minimize discrepancies between the workflow process modeled and the enacted workflow process as it is actually being executed. That means, we compare a complete set of activity firing sequences on buildtime with workflow execution logs which was generate on runtime. For this purpose we proposed two algorithm, the one is 'Activity-Dependent Net Algorithm' and the other is 'E-Walk Series Analysis Algorithm'.

• Journal of the Earthquake Engineering Society of Korea
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• v.7 no.4
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• pp.23-30
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• 2003

The result of recent seismic hazard analysis indicates that the ground motion response spectra for Korean nuclear power plant site have relatively large frequency acceleration contents. In the ordinary seismic fragility analysis of nuclear power plant structures and equipments, the safety margin of design ground response spectrum is directly used as a response spectrum shape factor. The effects of input response spectrum shape on the floor response spectrum were investigated by performing the direct generation of floor response spectrum from the ground response spectrum. The safety margin included in the design ground response spectrum should be considered as a floor response spectrum shape factor for the seismic fragility analysis of the equipments located in a building.

• The KIPS Transactions:PartA
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• v.10A no.5
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• pp.559-570
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• 2003

In this paper, we investigate a problem with Web-based learing contents and introduce the solving method of the problem. To be more accurate, existing Web-based learning contents were one fixd and uniformed courseware file with a large size and HTML format. Also, They were written files with authoring tools of which depended upon providing a multimedia vender. These learning contents were difficult to reuse among cyber education systems and change the applicable contents to the learner for learning experiences in time. So in this paper, we produced reusable and interopreable learning contents among instruction designers and education systems. They were deconstructed into smaller chunks and added to its properties. For the purpose of this producing method, we used the pedagogical designs for units of reuse. These are just turorial link-more and tell-more and was implemented with CBD method. As a result, The problem of existing Web-based learning contents system was resolved and then the power of understanding about objectified learning content was increased for the learner and instruction designers.

• KOMUNHWA
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• no.56
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• pp.215-245
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• 2000

필자는 이 글을 통해 제주도 고고학 발달사를 크게 4기로 구분하여 보았다. 제1기는 1945년 이전 일제강점기에 유적과 유물을 단순하게 보고하는 수준에 머물렀던 시기이고 제2기는 1945년에서 1983년 기간으로 향토사가와 한국 본토의 고고$\cdot$역사학자들의 부분적인 학술조사가 있었던 시기이다. 따라서 1$\~$2기는 제주 고고학의 기본적인 틀을 잡지 못한 단계라고 할 수 있다. 제3기는 1984년부터 1995년까지로 제주고고학에 있어 본격적인 발굴이 진행되지만 대부분이 긴급 발굴에 해당하고 소규모적인 발굴이었다. 하지만 이 시기에 와서 그 동안 발굴했던 자료와 그 이전의 발굴자료를 모아 나름대로 제주고고학의 시대 편년, 문화 변천 등의 기본적인 틀과 방향을 설정한 시기이기도 하다. 제4기는 1996년 이후 현재까지로 제주고고학의 기본적인 틀 속에서 이를 보완하고 새로운 선사문화의 단계를 설정하는 연구들이 진행 중이다. 이를 뒷받침하는 계기는 제주 고산리유적, 삼양동유적 등이 연차적, 계획적, 대대적으로 발굴되면서 많은 자료가 나왔기 때문이다. 또한 고고학의 범위가 선사시대에 국한되지 않고 제주목관아지, 성읍객사지, 법화사지, 존자암지, 수정사지, 고내현청터 등 역사유적의 출토자료에 대한 관심이 더욱 집중되기에 이르렀다. 제주도내 매장문화재는 발굴된 유적 대부분이 지정되어 있는 상태이다. 제주목관아지(사적 390호), 항파두리성(사적 396호), 고산리유적(사적 412호), 삼양동유적(사적 416호)로 지정되었다. 제주도 지석묘는 총 24기가 지방기념물로 지정되어 있으며 발굴했던 선사유적 중 곽지패총, 북촌리바위그늘집자리, 용담동무덤유적이 지정되어 있다. 역사유적 중 법화사지, 존자암지가 지정되었고 일부 유적지는 복원 중이다. 제주도 문화재를 보존하고 활용하기 위해서는 강화된 새로운 문화재법의 적절한 활용, 매장문화재 발굴 전문기관 설립, 발굴된 문화재의 원상보존, 문화재 주소록 작성, 문화재 행정 전문인력의 확보, 제주문화재의 상징물 선정과 활용, 지역문화재홍보위원의 위촉과 다양한 문화유산 프로그램의 개발을 들었다.

• Journal of the Society of Naval Architects of Korea
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• v.29 no.2
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• pp.115-122
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• 1992

A sandwich element is a special Hybrid structural form of the composite construction, which is consisted of three main parts : thin, stiff and relatively high density faces separated by a thick, light, and weaker core material. In a sandwich construction, the shear deformation of the faces. Therefore, in the calculation of the bending stiffness, the shear effect should be included. In this paper, the minimum weight is selected as an object function, as the weight critical structures are usually composed of these kind of construction. To obtain the minimum weight of sandwich panel, the principle of minimum potential energy is used and as for the design constraints, the allowable bending stress of face material, the allowable shear stress of core material, the allowable value of panel deflection and the wrinkling stress of faces are adopted, as well as the different boundary conditions. For the engineering purpose of sandwich panel design, the results are tabulated, which are calculated by using the nonlinear optimization technique SUMT.

• The Journal of the Korea Contents Association
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• v.19 no.7
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• pp.304-313
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• 2019

Centered on top ten brands of jasmine tea in China "Zhang Yiyuan(張一元), Wu Yutai(吳裕泰), EFUTON (藝福堂), Shumingrun(蜀茗潤), Chunlun(春倫),Jinghua(京華),Bitan Piaoxue(碧潭飄雪), Tenfuku meicha(天福茗茶), Xiao Guan Tea(小罐茶),China Tea(中茶)", this paper has summarized four elements of packaging design (logo, color, layout, shape), developed a questionnaire of consumer preference degree on this basis, and conducted reliability and validity analysis. According to the questionnaire survey, the most popular logo is the "Xiao Guan Tea", and the most popular color among all six colors is the gray group. Among the eight lay outs of the jasmine tea package, the most popular lay out is the type 2 and the most popular package shape is shape 2 (rectangle).In conclusion, this paper has analyzed consumer preferences for packaging design of jasmine tea gift box based on the questionnaire survey results.