• Title/Summary/Keyword: geographical methods

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Discrimination Analysis of the Geographical Origin of Foods (식품의 원산지 판별분석)

  • Choi, Jin-Young;Bang, Kyong-Hwan;Han, Kee-Young;Noh, Bong-Soo
    • Korean Journal of Food Science and Technology
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    • v.44 no.5
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    • pp.503-525
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    • 2012
  • Consumers are increasingly concerned about the origin of foods, so the geographical origin of foods has been a major topic of debate and extensive research. Various instrumental methods (e.g. high performance liquid chromatography (HPLC), gas chromatography (GC), capillary electrophoresis (CE), electronic nose, near-infrared spectroscopy (NIRS), nuclear magnetic resonance spectroscopy (NMR), DNA analysis, multi-isotope analysis) in conjunction with statistical analysis, were developed and applied in attempt to provide reliable answers to their geographical origin. This study reviews current developments in the application of various methods for a clear geographical origin of foods. The limitation of discrimination analysis for geographical origin was also discussed.

An Understanding on the Geographical Knowledge of the Educated in the HAKBO from 1905 to 1910 (애국계몽기 지식인의 지리학 이해 : $1905{\~}1910$년의 학보를 중심으로)

  • Kang, Soon-Dol
    • Journal of the Korean Geographical Society
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    • v.40 no.6 s.111
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    • pp.595-612
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    • 2005
  • This paper is to inquire into nature of the educated's geography from 1905 to 1910 by researching relevant geographical resources in HAKBO published by the Academic Society. At that time, the Patriotic Enlightenment Movement was active, and the Academic Society attempted to enlighten people, to enrich the country, and to restore the sovereign right. The educated tried to understand the reality in view of social Darwinism and make their country the winner as well as the fit in the struggle for existence by this movement. Their effort can be seen in HAKBO and geography in it. The contents of geography in HAKBO was related to world-wide geographical information and intended to instil patriotism into the hearts of people. As their research methods, they adopted systematic geographical method by comparing between region and region, or studying relationships of the nature and human, and Hettner's regional geographical method which describes human after the nature. Hence, it is proved that the educated's geography in HAKBO introduced modem geography in western society for Patriotic Enlightenment and it used its geographical methods.

Research on Principles to Transcribe Geographical Names in English for English Version Electronic Map Service (영문판 전자지도서비스를 위한 지명 영문표기의 세부기준과 원칙에 관한 연구)

  • Yi, Mi Sook;Ahn, Jong Wook
    • Spatial Information Research
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    • v.21 no.5
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    • pp.53-61
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    • 2013
  • This study has a research objective to suggest detailed rules and principles to transcribe geographical names in English for English version electronic map service. For this, guidelines which are used in English transcription of local geographical names in Korea and English transcription situations of Korea geographical names in foreign electronic map service were examined. Examining results of current situations showed the English transcription method of home and abroad geographical names caused the chaos because it is not homogenized. In order to identify easy and preferred transcription method for foreigners among English transcription methods about the geographical names which are used together like this, the preference of English transcription methods of the geographical names was examined targeting foreigners. Survey results showed that foreigners prefer to transcribe in Roman character (Romanization) with its semantic word together than just to transcribe the Roman character. Reflecting this preference research results, our country's geographical names were classified as Natural features, Cultural features and man-made structures, and Administrative units and the detailed English transcription rules and principles of each geographical names were suggested.

An Web-based Mapping by Constructing Database of Geographical Names (지명 데이터베이스 구축을 통한 웹지도화 방안)

  • Kim, Nam-Shin
    • Journal of the Korean association of regional geographers
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    • v.16 no.4
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    • pp.428-439
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    • 2010
  • Map of geographical names can give us information for understanding of region because geographical name reflects regional perception of human. This study aimed to make an web-based map by constructing database of geographical names. Main contents carried out research on methods for classification of geographical names, database construction, and mapping on the website. Geographical name classified into four categories of the physical geography, culture and historical geography, economic geography, and the other and also, 18 sub-categories by classification criteria. Geographical name designed to input by collecting geographical names from paper-based maps and vernacular place names only known to the local region. Fields of database consisted of address, coordinates, geographical name(hangeul, hanja), classification, explanation, photographs. Map of geographical names can be represented with regional geographical information. The result of research is expected to offer information for distribution of geographical names as well as regional interpretation.

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Review of the trend of research in geographical education in Korea (1945-1995) (지리교육 반세기의 회고와 전망: 연구업적을 중심으로)

  • ;Nam, Sang-Joon
    • Journal of the Korean Geographical Society
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    • v.31 no.2
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    • pp.317-328
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    • 1996
  • The purpose of this paper is to review the trend of research in geographical education since the launching of the Korean Geographical Society in 1945 and to suggest the areas and directions for future oriented research in geographical education. 422 articles (including 12 books) were reviewed and analized for this paper. The outputs of research in geographical education contributed in developing and improving the geographical education in primary and secondary school geography. But to achieve stable and desirable status as a subject in the school curriculum, research in geographical education has to be changed in its target areas and methods. The results and the suggestions of this study are summarized as follows: First, research in geographical education in diverse areas, especially in the areas of significance, aims and objectives, and psychology of geographical education should be preceded the revision of the school curriclum so that the results could be used as the basis information and evidences in decision making about the curriculum. Second, research in geographical education for affective domain and skill development should be implemented more actively in accordance to the trend of integration centering around the dicipline-inquiry skill and citizenship skill. More close relationship between the circles of geographical education and geography would be one of the ways to satisfy the social needs. Third, the linkage between primary and secondary school geography is crucial to the research in geographical education. Considering the sequence in human development research in geographical education for two levels of school should be conducted in more wide school-year span. Fourth, critical and prescriptive research in geographical education focusing on the individual, diciplinary, and social relevancy of the content of geographical education may be recommended. Finally, the outputs of the research in geographical education should be publicized more widely so that the rationale for justification of subject geography and geographical education may be shared with among the researchers, educational administrators, and practioners.

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Buying Pattern Discovery Using Spatio-Temporal Data Mart and Visual Analysis (고객군의 지리적 패턴 발견을 위한 데이터마트 구현과 시각적 분석에 관한 연구)

  • Cho, Jae-Hee;Ha, Byung-Kook
    • Journal of Information Technology Services
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    • v.9 no.1
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    • pp.127-139
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    • 2010
  • Due to the development of information technology and business related to geographical location of customer, the need for the storage and analysis of geographical location data is increasing rapidly. Geographical location data have a spatio-temporal nature which is different from typical business data. Therefore, different methods of data storage and analysis are required. This paper proposes a multi-dimensional data model and data visualization to analyze geographical location data efficiently and effectively. Purchase order data of an online farm products brokerage business was used to build prototype datamart. RFM scores are calculated to classify customers and geocoding technology is applied to display information on maps, thereby to enhance data visualization.

Regional Analysis of Precipitation using Mean Annual Precipitation and Cluster Methods (연강수량 및 클러스터 기법에 의한 강수의 지역화 분석(수공))

  • 이순혁;맹승진;류경식;지호근
    • Proceedings of the Korean Society of Agricultural Engineers Conference
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    • 2000.10a
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    • pp.397-404
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    • 2000
  • A total of 65 rain gauges with Automatic Weather Station(AWS) were used to regional analysis of precipitation. Nine cluster regions were identified using geographical locations, maximum, mean, standard deviation of 1 day maximum rainfalls, mean annual precipitation and rainfall of rainy season in Korea. The mean annual precipitation, geographical locations, and the synoptic generating mechanisms were used to identify th five climatological homogeneous regions in Korea. Number of final regions by mean annual precipitation and cluster methods divided into five regions in Korea.

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A Study on the Structure of Geographical Division in Library Classification System (문헌분류법에서의 지역구분에 관한 연구)

  • Nam, Tae-Woo;Baek, Hae-Kyung;Lee, Hyung-Mi;Jeong, Soo-Jin
    • Journal of Korean Library and Information Science Society
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    • v.39 no.4
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    • pp.189-214
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    • 2008
  • Objective of this research is to point out problems of geographic division structure in current Korean Decimal Classification System and provide solutions. For this purpose key classification methods were divided to decimal and non-decimal classification methods and analyzed for geographical division principles. In addition, national institutes regional division standards from Korea, USA and Japan were researched. Through these analysis, we provided suggestions to improve the table of geographical division in KDC4 including public institutions administrative district classification structure relations and consistency, and other regional divisional standards (proposal) instead of typical administrative district reflecting various geographical conditions.

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Census Population vs. Registration Population: Which Population Denominator Should be used to Calculate Geographical Mortality (센서스인구 대 주민등록인구: 지역별 사망률 연구에서 어느 인구를 분모로 사용하여야 하나?)

  • Hwang, In-A;Yun, Sung-Cheol;Lee, Moo-Song;Lee, Sang-Il;Jo, Min-Woo;Lee, Min-Jung;Khang, Young-Ho
    • Journal of Preventive Medicine and Public Health
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    • v.38 no.2
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    • pp.147-153
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    • 2005
  • Objectives: Studies on the geographical differences in mortality tend to use a census population, rather than a registration population, as the denominator of mortality rates in South Korea. However, an administratively determined registration population would be the logical denominator, as the geographical areas for death certificates (numerator) have been determined by the administratively registered residence of the deceased, rather than the actual residence at the time of death. The purpose of this study was to examine the differences in the total number of a district population, and the associated district-specific mortality indicators, when two different measures as a population denominator (census and registration) were used. Methods: Population denominators were obtained from census and registration population data, and the numbers of deaths (numerators) were calculated from raw death certificate data. Sex- and 5-year age-specific numbers for the populations and deaths were used to compute sex- and age-standardized mortality rates (by direct standardization methods) and standardized mortality ratios (by indirect standardization methods). Bland-Altman tests were used to compare district populations and district-specific mortality indicators according to the two different population denominators. Results : In 1995, 9 of 232 (3.9%) districts were not included in the 95% confidence interval (CI) of the population differences. A total of 8 (3.4%) among 234 districts had large differences between their census and registration populations in 2000, which exceeded the 95% CI of the population differences. Most districts (13 of 17) exceeding the 95% CI were rural. The results of the sex- and age-standardized mortality rates showed 15 (6.5%) and 16 (6.8%) districts in 1995 and 2000, respectively, were not included in the 95% CI of the differences in their rates. In addition, the differences in the standardized mortality ratios using the two different population denominators were significantly greater among 14 districts in 1995 and 11 districts in 2002 than the 95% CI. Geographical variations in the mortality indicators, using a registration population, were greater than when using a census population. Conclusion: The use of census population denominators may provide biased geographical mortality indicators. The geographical mortality rates when using registration population denominators are logical, but do not necessarily represent the exact mortality rate of a certain district. The removal of districts with large differences between their census and registration populations or associated mortality indicators should be considered to monitor geographical mortality rates in South Korea.

Exploring Augmented Reality applications for Geography Learning: Focused on Marker Based Methods (지리 학습을 위한 증강현실 적용 방안 연구: 마커기반 방법을 중심으로)

  • Park, Jeong-Hwan;Kim, Young-Hoon
    • Journal of the Korean Geographical Society
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    • v.48 no.6
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    • pp.994-1008
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    • 2013
  • In this paper, we describe two exploratory examples in the use of Augmented Reality (AR) for geographical visualization regarding refinement of visual content in geography textbooks and learning motivation of geography students. Currently, teaching and learning materials with AR technology and their utilization in the geography classroom have become a new topic in geographical research themes, and this trend has increased. Adequate development and utilization of geographical materials is an important starting point for smart education research in geography. This paper describes the system and software, and the implication of marker AR applications for teaching and learning geography in the classroom. For the AR applications to be utilized in geography education, two marker based AR examples, virtual globe and visualization of topographical features, are presented and their utilization aspects are discussed. Finally, from the discussion stated in this paper, it can be inferred that AR is useful for exploring geographical materials, and marker based AR will contribute to progress in spatial science and geographical education research.

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