• Journal of the Economic Geographical Society of Korea
• /
• v.14 no.1
• /
• pp.33-51
• /
• 2011

This study investigates the spatial characteristics of the provision of and demand for the private tutoring service industries and the consumer groups. For the purpose, we analyze the spatial characteristics of various types of tutoring institutes in the Seoul Metropolitan area. In particular, we exam the spatial distribution patterns of attendants of tutoring institutes by institution type as well as the resident population by attendant age group. By applying spatial autocorrelation analysis, we examine the spatial clustering patterns of tutoring institutes and attendants by type. The results show distinct differences in the spatial distribution patterns by tutoring institute type as well as by attendant age group. We found significant socio-economic variables which influence on the spatial distribution of tutoring institutes. Finally, we propose private tutoring service provision models constructed with these variables through multiple regression analysis.

• Asian Pacific Journal of Cancer Prevention
• /
• v.15 no.16
• /
• pp.6929-6934
• /
• 2014

Background: To analyze the mortality distribution of esophageal cancer in China from 1991 to 2012, to forecast the mortality in the future five years, and to provide evidence for prevention and treatment of esophageal cancer. Materials and Methods: Mortality data for esophageal cancer in China from 1991 to 2012 were used to describe its epidemiological characteristics, such as the change of the standardized mortality rate, urban-rural differences, sex and age differences. Trend-surface analysis was used to study the geographical distribution of the mortality. Curve estimation, time series, gray modeling, and joinpoint regression were used to predict the mortality for the next five years in the future. Results: In China, the incidence rate of esophageal cancer from 2007 and the mortality rate of esophageal cancer from 2008 increased yearly, with males at $8.72/10^5$ being higher than females, and the countryside at $15.5/10^5$ being higher than in the city. The mortality rate increased from age 45. Geographical analysis showed the mortality rate increased from southern to eastern China, and from northeast to central China. Conclusions: The incidence rate and the standardized mortality rate of esophageal cancer are rising. The regional disease control for esophageal cancer should be focused on eastern, central and northern regions China, and the key targets for prevention and treatment are rural men more than 45 years old. The mortality of esophageal cancer will rise in the next five years.

• Asian Pacific Journal of Cancer Prevention
• /
• v.15 no.6
• /
• pp.2785-2791
• /
• 2014

Aims: To analyze time-dependent changes in female breast cancer (BC) mortality in China, forecast the trend in the ensuing 5 years, and provide recommendations for prevention and management. Materials and Methods: Mortality data of breast cancer in China from 1991 to 2011 was used to describe characteristics and distribution, such as the changes of the standardized mortality rate, urban-rural differences and age differences. Trend-surface analysis was used to study the geographical distribution of mortality. In addition, curve estimation, time series modeling, Gray modeling (GM) and joinpoint regression were performed to estimate and predict future trends. Results: In China, the mortality rate of breast cancer has increased yearly since 1991. In addition, our data predicted that the trend will continue to increase in the ensuing 5 years. Rates in urban areas are higher than those in rural areas. Over the past decade, all peak ages for death by breast cancer have been delayed, with the first death peak occurring at 55 to 65 years of age in urban and rural areas. Geographical analysis indicated that mortality rates increased from Southwest to Northeast and from West to East. Conclusions: The standardized mortality rate of breast cancer in China is rising and the upward trend is predicted to continue for the next 5 years. Since this can cause an enormous health impact in China, much better prevention and management of breast cancer is needed. Consequently, disease control centers in China should place more focus on the northeastern, eastern and southeastern parts of China for breast cancer prevention and management, and the key population should be among women between ages 55 to 65, especially those in urban communities.

• Journal of the Korean Geographical Society
• /
• v.32 no.2
• /
• pp.141-153
• /
• 1997

In Korea, cable television(CATV) broadcasting has begun in March, 1995. This Paper aims at examining the location of CATV broadcasting station, and demand density(numbers of viewer houshold) of broadcasting area, and at clarifing the factors affecting subscription. The results are as follows: The number of CATV stations is 54 in 1996, and these CATV stations are mainly located in larger cities. The correlation between the number of established or planned CATV station and the number of household is very high. In sphered broadcasting area Permitted in 1997, the location of CATV station is about 73,000 household and 230,000 persons in the minimum values of household and population, and diameter of sphered broadcasting area is 40.6 km in mean. The factors affecting subscription rates of CATV are median age and supply rates of apartment of each dong in Chongju city and each myun in Chongwon county. The correlation between subscription rates of CATV and supply rates of apartment appears higher than correlation between subscription rates and median age other factors based on residual analysis of regression equation are established period of transmission network of CATV and acceptance attitude of dwellers.

• Journal of the Korean Geographical Society
• /
• v.44 no.4
• /
• pp.497-509
• /
• 2009

Records on natural hazards such as droughts, floods, smallpox and attacks of grasshoppers are classified and analyzed during the Ancient Times(BC 57$\sim$AD 935) based on the Historical Records of the Three Kingdoms Age(Samguksaki main record), and influences on human activities and relationships of each natural hazard are studied. The strongest influences on the agricultural productivity were the drought and the influences of floods were weak. The most floods were not destructive hazards because the cultivated lands were distributed in the valley plains and the towns and villages were constructed in the area free from the floods during the Ancient Times. The attacks of grasshoppers have the high frequencies with the droughts. The smallpox of the Ancient Times has no relationships with the dearth, floods and droughts. This means that the waterborne infections happened periodically and after the unification, the infectious diseases happened continuously due to the urbanization leading the concentration of population on the capital. Two cycles of droughts are recognized, and they happened with the time intervals of approximately 500 years during approximately 1000 years in Shilla dynasty.

• Journal of the Economic Geographical Society of Korea
• /
• v.17 no.3
• /
• pp.554-566
• /
• 2014

This paper analyses the relationship between regional economic power defined as GRDP per capita and various socioeconomic variables such as fiscal variables(revenue, expenditure, etc.) as well as nonfiscal variables(population, ratio of old population, unemployment rate, dependency ration) using the pooling data of 16 local governments from 1998 to 2012. To put it concretely, following the Granger causality test, regression analysis has been done with the regional economic power being the dependent and variables which have either one or two direction causality being independent variables. And test of cumulative effects has been done with variables showing statistical significance in the regression analysis. Local tax revenues per capita, expenditures of social development per capita and median age have positive effects, while dependency ratio has negative effect on regional economy. And national subsidy per capita, local tax revenues per capita, expenditures of social development per capita and median age all have cumulative effects on regional economy.

• Journal of the Korean Geographical Society
• /
• v.38 no.6
• /
• pp.922-934
• /
• 2003

On top of several peaks of Seoraksan National Park. many extensive blockfields are found. After initial report was made in year 2000, further field work and analysis of satellite image have been made. Blockfields on top of mountain peaks exhibit evidence of chemical weathering including gnammas and grooves. Also, several lichen colonies larger than 80 cm in diameter have been found on the surface of many blocks. High resolution IKONOS image has been used to delineate the boundary of blockfields which are hard to access during the field trip. Blockfields of Mt. Seoraksan lack fine material necessary for age dating and clay mineral analysis because they experienced long period of wash and erosion during the Holocene. The ages of blockfields seem to be pre-Holocene on the basis of size of lichen colony and weathering pits.

• Journal of the Korean BIBLIA Society for library and Information Science
• /
• v.2 no.1
• /
• pp.211-235
• /
• 1974

A. The principal geographical descriptions compiled by the government during Yi dynasty started from the Shinchan-Paldo-Chiriji(新撰八道地理志) which was compiled by the royal decree in the sixth year (1424) of King Sejong(世宗) and it ended in the Jungbo-Munhonbiko(增補文獻備考) which was published in the second year(1908) of Yunghyi(隆熙). The process of their compilations can be divided into four steps according to the compilatory work's contents of the principal geographical descriptions which were compiled through the Yi dynasty. We can say that the first step (1424-1454) of those works began at the date of the compilation of the Shinchan-Paldochiriji and it ended in the date of the compilation of the "Sejongsilok-Chiriji"(世宗實錄地理志), and during that period the Kyonsangdo-Chiriji(慶尙道地理志) was published. In the second step(1455-1531), were published the Paldochiriji,(八道地理志), Kyongsangdosokchanchiriji(慶尙道續撰地理志), DonggukYojisungnam(東國與地勝覽) and the third step (1532-1769) began at the date of the compilation of the Dongguk-Munhonbiko(東國文獻備考) and it ended in the date of the publication of the Jungbo-Munhonbiko(東國文獻備考), and in that period the Jongjung-Munhonbiko(訂增文獻備考) was published. The works of compilation of the Eubjis in the period of King Kojong(高宗) came within the category of the fourth step. B. Generally speaking, the state geographical descriptions were composed of the regional data of the country which were collected and arranged. In other words, firstly, the Eubjis were compiled in each county, secondly, the Dojis(道誌) were compiled based upon the collections of all the Kunjis(郡誌), lastly, the government collected all the Dojis and compiled them into the state geographical descriptions. The Eubjis in the early days of Yi dynasty were compiled as the data for the compilation of the nation-wide geographical descriptions, but the Eubjis in the age of King Kojong were compiled as the administrative data. C. The main contents of the Eubjis were composed of the descriptions on the geography, history, industry, naval and military affairs, traffics, communication, administration, economy and society, and of the matters on the prose and poetry, persons of loyalty, historic remains, social customs and schools. Consequently, the above-mentioned data will be contributed to the study on the structures of the geography, history, economy, administration, education, naval and military affairs and traffics as well as the study on the literature, social customs and bibliography. Especially, they will be important data for the arrangement of cultural assets of our country. Furthermore, because the traditional study of national literature was centered around the study on the central government ignoring the study on the regional matters, the study of the Eubjis will be worthy of being valued.

• Journal of the Korean association of regional geographers
• /
• v.23 no.2
• /
• pp.376-387
• /
• 2017

This paper attempts to analyze the geographical characters of Twitter data and presents analysis potentials for social network analysis in geography. First, this paper suggests a methodology for a topic modeling-based approach in order to identify the geographical characteristics of tweets, including an analysis flow of Twitter data sets, tweet data collection and conversion, textural pre-processing and structural analysis, topic discovery, and interpretation of tweets' topics. GPS coordinates referencing tweets(geotweets) were extracted among sampled Twitter data sets because it contains the tweet place where it was created. This paper identifies a correlated relationship between some specific topics and local places in Jeju. This correlation is closely associated with some place names and local sites in Jeju Island. We assume it is the intention of tweeters to record their tweet places and to share and retweet with other tweeters in some cases. A surface density map shows the hotspots of tweets, detecting around some specific places and sites such as Jeju airport, sightseeing sites, and local places in Jeju Island. The hotspots show similar patterns of the floating population of Jeju, especially the thirty-year age group. In addition, a topic modeling algorithm is applied for the geographical topic discovery and comparison of the spatial patterns of tweets. Finally, this empirical analysis presents that Twitter data, as social network data, provide geographical significance, with topic modeling approach being useful in analyzing the textural features reflecting the geographical characteristics in large data sets of tweets.

• Journal of the Korean Society of Food Culture
• /
• v.12 no.3
• /
• pp.341-352
• /
• 1997

A study was carried out to compare the food cultures among Korea (Chosun dynasty), China (Ming, thing dynasty) and Japan (Muromachi, Edo era) from 14 century to 19 century. For this study, geographical environments, historical background with the times were researched and also bibliographies related on food cultures were compared among these three countries. There were special geographical environments in three countries upon their territories and geographical features. Historically, in those era, the livelyhoods of the common people in three countries were difficult considerably because of the disturbances of war in the inside and outside of the countries. But the food cultures of three countries were changed owe to introduce the new western culture and institutions. And also there were numerous bibliographies related on food culture which were published from 14C to 19C in Chosun dynasty, Ming and Ching dynasty, and Muromachi, Edo era. They were shown to be the most in Japan, and order of China and Korea followed them. The bibliographies of Ming and thing dynasty showed less than those of Edo era for considering their population and territory, comparatively. In Japan, the biliographies related on food culture of Edo era was given the term of the age of cookery books. It was thought to be resulted from that the peoples of Japan were concerned about cooking and had more chances to contact foreign culture earlier than other country.