• The Korean Journal of Applied Statistics
• /
• v.32 no.4
• /
• pp.517-541
• /
• 2019

According to the OECD (2015) and UN (2017), Korea was classified as an immigration country. The designation as an immigration country means that net migration will remain positive and international migration is likely to affect population growth. KOSTAT (2011) used a model with more than 15 parameters to divide sexes, immigration and emigration based on the Wilson (2010) model, which takes into account population migration factors. Five years later, we assume the average of domestic net migration rate for the last five years and foreign government policy likely quota. However, both of these results were conservative estimates of international migration and provide different results than those used by the OECD and UN to classify an immigration country. In this paper, we proposed a stochastic projection on international migration using nonparametric model (FDM by Hyndman and Ullah (2007) and Coherent FDM by Hyndman et al. (2013)) that uses a functional data model for the international migration data of Korea from 2000-2017, noting the international migration such as immigration, emigration and net migration is non-linear and not linear. According to the result, immigration rate will be 1.098(male), 1.026(female) in 2018 and 1.228(male), 1.152(female) in 2025 per 1000 population, and the emigration rate will be 0.907(male), 0.879(female) in 2018 and 0.987(male), 0.959(female) in 2025 per 1000 population. Thus the net migration is expected to increase to 0.191(male), 0.148(female) in 2018 and 0.241(male), 0.192(female) in 2025 per 1000 population.

• KAPE Magazine
• /
• s.247
• /
• pp.15-17
• /
• 2017

• Proceedings of the Korea Information Processing Society Conference
• /
• 2012.04a
• /
• pp.1432-1435
• /
• 2012

최근 세계 게임시장은 연 30% 이상의 고속 성장률을 나타내고 있으며, 3차원 그래픽처리의 발전과 컴퓨터기술의 고급화 및 풍부한 아이디어, 끊임없는 놀이문화의 추구로 게임시장은 국제적인 지식산업, 정서서비스산업, 감성산업 및 고부가가치산업으로 급성장하고 있는 상황이다. 일본, 미국 그리고 유럽 선진국 등은 미래의 지식산업으로서 게임 산업에 투자함으로서 국제경쟁력을 선점하기 위해 막대한 투자와 인재양성 및 창의력 교육 등에 앞서고 있다. 대기업과 제조업에서도 국제경쟁력이 약화되고 경제위기 및 실업대책에 어려움을 겪고 있는 우리나라도 이제는 공업입국에서 지식산업입국으로 발전시키기 위해서 게임 산업과 같은 고부가 가치산업을 육성 발전시켜야 한다. 본 논문에서는 국내 게임 산업에 대한 분석을 통해 게임 시장동향을 살펴보고 최근 스마트폰 이용자가 급속히 증가함에 따라 스마트폰 게임에 대한 시스템을 개발하고자 한다. 이것은 PC와 스마트폰 연동을 통하여 집이나 사무실에 있는 PC와 이동이 가능한 스마트폰에서 게임을 즐길 수 있도록 구성되어 있다.

• Journal of the Korean Chemical Society
• /
• v.58 no.3
• /
• pp.303-312
• /
• 2014

In this study, we analyzed the characteristics of science academic achievement by multiple culture and North Korean migrant students types, percentage of correct answer and discrimination per items per groups, and contents domains using quantitative and qualitative method in the National Assessment of Educational Achievement (NAEA). As a results of analysis, the degree of science academic achievement of the students from multiple culture and North Korean is much lower than that of the general students. Also, the science academic achievement of the students from multiple culture and North Korean migrant is different from the general students. Especially, science academic achievement of the immigrated students and the North Korean migrant students was lowest. The analysis of items that the difference of the percentage of correct answer was large showed that the students from multiple culture and North Korean migrant were equally weak to it in all contents domains, but that the students from international marriage family born in country were weak in some areas. Therefore, the appropriate the teaching and learning method and the educational support is needed considering the group situation, so the educational implications are discussed.

• Journal of the Korean Society of Hazard Mitigation
• /
• v.9 no.6
• /
• pp.77-87
• /
• 2009

Potential risks of communicable disease outbreaks have significantly increased in the era of global society. However, contingency planning of local governments for communicable diseases is not prepared to the proper level in various governmental sectors of many countries. Human being has been remarkable advances in medical science and public health. However, Severe Acute Respiratory Syndrome (SARS) still remains as a very dangerous transmissible disease that has great potential to create catastrophic consequences of casualties. The SARS outbreak between November 2002 and July 2003 resulted in 8,096 known infected cases and 774 deaths with a mortality rate of 9.6% worldwide (WHO, 2004). It is regarded as one of the human health disasters. Since about sixty-six percent of total SARS cases in the world were reported in People's Republic of China, Korean tour industry was significantly affected as a neighboring country. The objective of this research is to investigate major factors of Korea entry data sets, and to analyze economic impacts of Korean tour business interruption due to the period of SARS outbreak with tourist cases of four countries: Japan, U.S.A., China, and Taiwan. Results from this research show the seasonal and long-term trends of entry data sets of four countries, and direct and indirect impacts of SARS to Korean tour industry.

• The Korea Swine Journal
• /
• v.30 no.4 s.344
• /
• pp.156-159
• /
• 2008

봄바람이 불면서 구제역 발생 방지를 위한 양돈장의 방역관리가 더욱 절실해지고 있다. 이에 농림부는 3월부터 5월까지를 '구제역 특별대책기간'으로 설정, 강도 높은 국격검역과 국내 방역활동을 추진하고 있다. 구제역은 국내에서는 2000년과 2002년도에 발생하여 4,500억원의 직접 손실을 입은 바 있으며 최근에는 발생하지 않았고 국제적으로도 발생이 감소하고 있지만 우리나라와 인접한 중국과 북한에서 계속 발생하고 있고 베트남 등 다발지역인 아시아 국가들과의 교류도 증가하여 국내에 유입될 가능성을 배제할 수 없는 상황이다. 특히 최근에는 사료 값이 큰 폭 인상되는 등 양돈농가의 경영여건이 악화되었고, 환절기 질병 발생률이 높아 방역에 소홀해질 수 있다는 우려가 높아지고 있다. 게다가 더 올봄에는 예년보다 황사가 자주 발생할 것으로 예보되어 구제역 방역에 더욱 고삐를 조여야 할 것으로 보인다. 또한 양돈농가에서 방역활동을 철저히 하는 한편, 특별대책기간 중 외국을 여행하는 농가는 중국, 몽골, 메트남 등 구제역 발생국가 여행이나 현지 축산농장 방문을 자제하고 입국시 육류 등 축산물을 가지고 들어오지 않도록 해야한다.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2022.07a
• /
• pp.429-430
• /
• 2022

현재 코로나로 인한 각 나라의 입국 제한이 사라지면서 국내외 여행 예약률 증가에 따라 그만큼 비행기 예약도 늘어나고 있다. 그런데 객실 승무원의 근무 환경은 매우 열악하기 때문에 육체적, 정신적 피로를 누적되게 한다. 이는 승객에게 양질의 서비스를 제공할 수 없게 하고 안전사고를 대처하는 데 있어 문제가 된다. 본 논문은 객실 승무원이 스마트폰 앱을 이용하여 편리하게 객실 상황을 확인하고, 원격 제어하며 서빙카트를 조작하여 승객의 주문에 대한 서비스를 제공하는 '원격제어가 가능한 비행기 객실 관리 시스템'을 제안한다. 이 시스템을 이용함으로써 객실 승무원은 객실 상황을 판단하여 즉각적인 대처를 할 수 있고, 항공기 효율적 운용을 위한 안전성과 정시성을 확보하는 데 도움이 될 것이다.

• School Mathematics
• /
• v.15 no.1
• /
• pp.179-199
• /
• 2013

In this study we grasp what contents in the mathematics curriculum the students of multicultural and North Korean migrant families are vulnerable to and we would like to provide the bases to devise the appropriate teaching and learning methods for them. In order to this work we used the results of 2011 National Assessment Educational Achievement. We categorized students from multicultural and North Korean migrant families into children from international marriage family (born in country or immigrated), foreign family, and North Korean migrant family and compared each category with the whole students. First, for each school class we analyzed characteristics of academic achievement by ratio of achievement level, means of calibrated score, and percentages of correct answers in NAEA, mean percentages of correct answers by content domains, and percentages of correct answers by items. In addition to these we analysed items qualitatively and investigated study conditions in which the students of multicultural and North Korean migrant families have difficult times. In every subgroup the more ratio of advanced level decreases and ratio of below basic level increases the more school classes go up. Also these phenomena appear differently by each group and by content domain. For this reason by group, the supporting on learning will be needed.

• Food Science and Preservation
• /
• v.24 no.5
• /
• pp.714-724
• /
• 2017

Soju is a Korean traditional distilled alcoholic beverage produced from mashes various crops and Nuruk which is cultured with wild microorganisms. This study was conducted to investigate rice-Soju brewing characteristics of yeasts isolated from Korean traditional Nuruk. The general components of rice (Hanarumbyeo) raw materials were 14.7 g of water, 6.8 g of crude protein, 0.9 g of crude lipid, 0.4 g of crude ash, and 76.5 g of carbohydrate in 100 g. Saccharifying and proteolytic activities in Hanarumbyeo ipguk (solid-state culture of Aspergillus luchuensis) were also determined. The alcohol content of the fermented wash from isolates was 15.37-16.58% (v/v), which is 16.7-36.0% higher than that of industrial yeasts (12.33-13.19%). Reducing sugar contents were 2.04-3.92 and 7.92-8.78 g/100 mL in the isolates and industrial yeasts, respectively. The isolated yeasts showed 25.2-52.7% higher yield of distillates (41% alcohol) compared to industrial yeasts. Forty-one components were detected in the rice distillated Soju (25% alcohol) and principal component analysis revealed differences between the isolated and industrial yeasts with respect to the contents of i-BuOH, isobutanal diethyl acetal, ethyl caprate, and tetradecanoic acid.