• 한국식품과학회지
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• 제28권4호
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• pp.650-656
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• 1996

절임배추를 효과적으로 저장 유통할 수 있는 방법을 개발하기 위하여 포장압력(상압, 감압)과 저장온도 $(0^{\circ}C,\;20^{\circ}C)$를 달리하여 저장하면서 절임배추의 품질특성을 외관, 수율, 염도, pH, 환원당 함량, 텍스쳐 및 즙액용출량 등으로 조사한 결과, 수율과 염도는 상압포장 하여 $0^{\circ}C$로 저장한 것이 1주 저장 후 수율이 87.1%로 가장 높았고, 염도변화와 pH변화도 가장 작았다. 그러나 환원당 함량은 감압포장하여 $0^{\circ}C$ 저장한 경우에 배추즙액의 용출이 많아서 상대적으로 환원당 함량이 가장 높았다. 외관과 즙액 용출량은 상압포장하여 $0^{\circ}C$에서 저장하는 경우 조직액의 용출이 128.9ml/kg으로 가장 적었고, 텍스쳐도 상압포장하여 $0^{\circ}C$에 저장 한 경우에 압축강도의 변화가 가장 작았다. 이상의 결과에서 상압포장하여 저온저장하는 경우 절임배추의 특성 변화가 적어 절임배추의 포장 유통방법으로 적합한 것으로 판단된다.

• 한국측량학회지
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• 제32권6호
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• pp.651-659
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• 2014

With the popularization of big data environment, big data have been highlighted as a key information strategy to establish national spatial data infrastructure for a scientific land policy and the extension of the creative economy. Especially interesting from our point of view is the cadastral information is a core national information source that forms the basis of spatial information that leads to people's daily life including the production and consumption of information related to real estate. The purpose of our paper is to suggest the scheme of big data analytics with respect to the articles of cadastral resurvey project in order to approach cadastral information in terms of spatial data integration. As specific research method, the TM (Text Mining) package from R was used to read various formats of news reports as texts, and nouns were extracted by using the KoNLP package. That is, we searched the main keywords regarding cadastral resurvey, performing extraction of compound noun and data mining analysis. And visualization of the results was presented. In addition, new reports related to cadastral resurvey between 2012 and 2014 were searched in newspapers, and nouns were extracted from the searched data for the data mining analysis of cadastral information. Furthermore, the approval rating, reliability, and improvement of rules were presented through correlation analyses among the extracted compound nouns. As a result of the correlation analysis among the most frequently used ones of the extracted nouns, five groups of data consisting of 133 keywords were generated. The most frequently appeared words were "cadastral resurvey," "civil complaint," "dispute," "cadastral survey," "lawsuit," "settlement," "mediation," "discrepant land," and "parcel." In Conclusions, the cadastral resurvey performed in some local governments has been proceeding smoothly as positive results. On the other hands, disputes from owner of land have been provoking a stream of complaints from parcel surveying for the cadastral resurvey. Through such keyword analysis, various public opinion and the types of civil complaints related to the cadastral resurvey project can be identified to prevent them through pre-emptive responses for direct call centre on the cadastral surveying, Electronic civil service and customer counseling, and high quality services about cadastral information can be provided. This study, therefore, provides a stepping stones for developing an account of big data analytics which is able to comprehensively examine and visualize a variety of news report and opinions in cadastral resurvey project promotion. Henceforth, this will contribute to establish the foundation for a framework of the information utilization, enabling scientific decision making with speediness and correctness.

• 대한임상검사과학회지
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• 제42권1호
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• pp.55-61
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• 2010

This investigation has been carried out for the purpose of the examination of current Gwangju and Jeonnam clinical pathology students' recognition of their departments and of effective employment guidance. Furthermore, it has examined the students' recognition on two sides; namely, their satisfaction with their own departments and their recognition of the employment of medical technologists. This investigation, with 389 students as its subjects from the clinical pathology departments at 4 universities in the Gwangju-Jeonnam Region, has compared and analyzed the data from the survey with a questionnaire from November 2008 to June 2009 by using the SPSS 12.0 package. Some of the remarkable results from the yielded data are as follows. As for the motivation for their application to the clinical pathology departments, the investigation of the students' satisfaction with their departments has revealed that 47.5% of the subjects indicated recommendation from friends or acquaintances while 22.1% reported that they had been informed of the departments through Internet. 70.4% of the subjects graduated from general high schools, 22.3% from commercial high schools, and 6.2% from technical high schools. Applicants from general high schools tend to decrease in number every year. 28.5% of the students judged professor's capability of lecture as an important part of their acquisition of licenses, and more than 65.6% of the subjects acknowledged the necessity of their self-study at night for the acquisition of license. As for the future prospect of the occupation of clinical technologist, 46.8% of the students replied that it was promising, while 39.1% reported that they had no ideas. From this we can confirm that the students of clinical pathology lacked a viewpoint of occupation and goals for future jobs. The investigation of the students'recognition of the employment of clinical technologists has revealed that 47.8% of them wanted to be employed in the Seoul-Gyeonggi Region due to the properties of their local universities, 29.0% of themlogpecteties of monesly salary to be 1,200,000~1,300,000 won, while 22.4% 1,300,000~1,400,000 won. These fiemres indicated that these students' salary ogpectations were relativplo lower than those from cities ertiprovinces. As for the greatest difficulty after employment, 31.1% of the subjects indicated the confliction among employees from variouatiolleges, 27.3% uncertainty of duties related to es of major, 24.9% bmrdens of self-development.

• 마이크로전자및패키징학회지
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• 제16권2호
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• pp.43-50
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• 2009

최근 인쇄회로기판(PCB)의 제품트랜드는 박형화, 고밀도화로 대표되지만 휨(Warpage) 억제, 신뢰성확보와 같은 기술적 난제로 인해 박형화와 고밀도화에 많은 제약을 받고 있다. $B^2it$(Buried Bump Interconnection Technology) 공법은 기판의 핵심공정 중 하나인 드릴링 공정이 생략되어 인쇄회로기판을 낮은 제조비용으로 박형화할 수 있는 기술로 개발되고 있다. 본 논문은 $B^2it$공법이 적용된 인쇄회로기판의 열적-기계적 거동특성을 유한요소해석(FEA)을 통해 고찰한 논문으로서 패키징레벨에서 방열효과와 신뢰성 등에 벙프의 재료, 형상 등이 미치는 영향 등을 분석하였다. 해석결과에 의하면 $B^2it$공법이 적용한 인쇄회로기판은 기존 비아구조를 가진 인쇄회로기판에 비해 칩에서 발생하는 열의 확산이 신속하고 패키징의 휨을 억제하는데도 유리하며 칩에서 발생하는 응력도 낮추지만 솔더-조인트의 응력은 증가시키게 된다. 따라서 패키징의 신뢰성을 향상시키기 위해서는 범프의 형상, 재료 등을 패키징을 구성하고 있는 모든 요소들을 고려하여 최적화하는 것이 필요하다.

• 한국산업정보학회논문지
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• 제19권4호
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• pp.133-146
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• 2014

본 논문에서는 한국과 중국의 쇼핑몰 웹 사이트 디자인 요인에 차이가 있는지에 대해 15개의 가설을 설정하여 연구하였다. 한국의 쇼핑몰 웹 사이트로는 "G마켓"과, 중국의 쇼핑몰 웹 사이트로는 "taobao마켓"을 선정하였다. 쇼핑몰 웹 사이트 디자인 요인으로는 (1)색상과 디자인, (2)사진, 그래픽, 글자의 크기, (3)정보전달의 명확성(이해성), (4)웹 사이트 구조, (5)화면의 조화, (6)상품의 진열, (7)상품의 조화, (8)글자나 아이콘의 형태, (9)시각적인 분위기, (10)차별화되는 색상, (11)흥미를 유발하는 단어, (12)기술력, (13)전체적인 시각적 디자인 및 분위기, (14)항해구조, (15)상품이나 정보검색 기능 등 15가지 요인을 선정하였다. 본 논문에서는 한국과 중국의 쇼핑몰 웹 사이트가 이들 요인들 간에는 차이가 있는지에 대해 SAS9.2 통계 패키지를 이용하여 검증한 결과 차이가 있는 것으로 나타났다. 또한 본 연구에서는 이들 차이점을 분석하여 효과적인 쇼핑몰 웹 사이트 디자인을 위한 방안을 제시하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권2호
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• pp.443-461
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• 2014

Overlay routing has emerged as a promising approach to improve reliability and efficiency of the Internet. For one-hop overlay source routing, when a given primary path suffers from the link failure or performance degradation, the source can reroute the traffic to the destination via a strategically placed relay node. However, the over-heavy traffic passing through the same relay node may cause frequent package loss and delay jitter, which can degrade the throughput and utilization of the network. To overcome this problem, we propose a Load-Balanced One-hop Overlay Multipath Routing algorithm (LB-OOMR), in which the traffic is first split at the source edge nodes and then transmitted along multiple one-hop overlay paths. In order to determine an optimal split ratio for the traffic, we formulate the problem as a linear programming (LP) formulation, whose goal is to minimize the worse-case network congestion ratio. Since it is difficult to solve this LP problem in practical time, a heuristic algorithm is introduced to select the relay nodes for constructing the disjoint one-hop overlay paths, which greatly reduces the computational complexity of the LP algorithm. Simulations based on a real ISP network and a synthetic Internet topology show that our proposed algorithm can reduce the network congestion ratio dramatically, and achieve high-quality overlay routing service.

• 한국식품영양과학회지
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• 제16권4호
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• pp.300-305
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• 1987

동결건조한 벼메뚜기의 저장성을 검토하기 위하여 $5^{\circ}C$ 냉장중의 색소의 변화를 측정하고 색소성분을 분리동정하여 이들이 지질의 산화에 미치는 영향을 조사하였다. 저장중 chlorophyll 함량은 크게 감소하고 pheophytin 함량이 증가하였는데, 진공포장은 chlorophyll의 분해를 어느 정도 억제하였다. 98일간 저장한 시료로부터 추출한 색소를 Silicic acid column으로 분획하여 chlorophyll류로 보이는 3구분(3a, 3b 및 3d)을 분취하고 TLC상에서의 Rf치(0.75, 0.50)와 흡수스펙트라에서의 흡수극대파장(408, 666nm; 419, 651nm; 433, 655nm)을 표준품의 것과 비교하여 pheophytin a 와 b 그리고 chlorophyll a의 분해물을 동정하였다. 이들 구분중 pheophytin a와 b 구분은 지질의 산화에 강력한 촉진작용을 하는 것으로 나타났다.

• Food Quality and Culture
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• 제2권2호
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• pp.73-79
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• 2008

Recently, increasing interests in local foods have been highlighted along with active efforts and activities from autonomy organizations to develop local cultures and promote local economies by generating value added products and profits through the development of local foods. Subsequently, useful effects might result by making local foods attractive to tourists, such as by using indigenous Gimpo products to make menu items that incorporate the social, economic, and cultural aspects of the Gimpo area, and contributing to its food culture, the development and use of its indigenous products, and promoting local restaurant businesses, etc. The items of the survey used to select the local food menu items to be developed were limited to ideas offered by expert groups, and were implemented by a new menu development process. In order to derive the menu items to develop, the following method was applied: a brainstorming session with experts to generate and draft ideas, a questionnaire to chefs and cooks in special grade hotels is Seoul to select the menu items to develop from those drafted, and sensory evaluations by experts to evaluate the developed items. Frequency analysis and technical statistical analysis were performed using the SPSS 12.0 program package, where 13 kinds of local foods were ultimately developed using indigenous products of Gimpo. The developed local food menu items were rice & grape sujaebi, grape sikhae, fried rice embryo bud, grape yanggaeng, rice pancakes, rice spaghetti, grape seed oil dressing, grape sauce, rice pizza, grape pie, rice & grape ice cream, grape chocolate, and rice roll cakes.

• 한국실내디자인학회논문집
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• 제15권5호
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• pp.306-313
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• 2006

Digital simulation which was introduced to the architectural field due to the rapid growth of computer graphics, gave birth to a new type of contents called 'virtual reality', led by the interaction with the users and real time processing. The public attention is drawn to the virtual reality's potential as a next generational space simulation it, having the unique characteristics of 'simulation', 'interactivity', 'tole-presence', and 'immersion', is capable of taking a virtual tour of a space with a size equivalent to that of a real space, as well as proceeding with the design progress. Nonetheless, many problems impeding CPU's real time processing of an excessively loaded architectural model data have been pinpointed over the time. Yet such GPU based game engines as 'DirectX' and 'OpenGL', developed to deal with these impediments, have not been easily applied to the architectural simulation in the design process, due to the high license cost and the specific technical requirements for the system. The virtual reality has been developed and distributed centering around the gaming field, and game developers recently show a greater tendency to include level editors in the package for the expandability purpose. Thus, we plan to propose architecture simulation which utilizes level editors in this study. In addition, the compatibility of the game engine based level editors of Quake and Unreal which form the standards for the open source FPS games, based on VRML, the standard format for the virtual reality, was compared and analyzed. Taking the example of Villa Savoye of Le Corbusier, its application possibility as an architecture simulation was assessed, by measuring the extent to which the performance of such characteristic features of the virtual reality as interactivity, immersion, and tele-presence, was improved.

• 한국실내디자인학회논문집
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• 제16권1호
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• pp.126-134
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• 2007

This study researches the effectiveness of virtual experiences as an evaluation method in design. For the study, I researched the result on the spatial recognition before, abstracted visual objects and factors in recognition process and made up 43 inquiries for the evaluation through the experts group. Besides, set the analytical code between recognition factor and spatial constituents, made analysis the result from it. From April 1st to June 30th in 2004, the virtual model of educational place, college main building and city library was established as a subject of the research and studied the result. The methods that are used for the study are frequent analysis, T-test, reliability analysis, factor analysis etc. and SPSSWIN Package is used for the statistic analysis. There were two times of analysis on the evaluation to analyze the effect of virtual models on the web basis, one group evaluated the virtual building same as real and the other group evaluated the building site. Then analyzed the differences and correlation between the two. In result, college building, the first subject of study, and the second city library shows that made little differences between on the spot evaluation and virtual evaluation. Therefore, it is considered that the design evaluation with virtual model on the web basis has a vantage. But some problems founded that solved between preceding and present research through the feedback. It is as follows, 1. detection of problems that insufficience validity in the first survey. 2. found some not-validity inquiries. 3. detection of necessities that qualitative improvement and technical repletion in virtual environment.