• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.38 no.1
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• pp.57-67
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• 2020

Recently, smart cities are attracting attention as a solution for a plethora of urban problems, including transportation, environment, safety, and energy. However, despite a substantial body of research dealt with the concept, trends, policy, and legal institutions of smart cities, few researchers have examined how the smart city services influence the cities from the dynamic perspective that considers the entire cycle of a city, including its growth, stagnation, and decline. Thus, it is vital to understand how the city changes with time from the view that a city is a system of sub-elements-population, industry, transportation, environment, housing, and land-closely interacting together. Within this context, this study explores how the urban dynamics of Anyang-city develop for the long term using the System Dynamics method and analyzes the effect of smart city project investment on the dynamics of Anyang-city. According to the result, Anyang-city is a "mature and stable" type, and its population is expected to decrease slowly by 2040. Specifically, the Anyang-city population will be reduced to 553,000 by 2030. It was analyzed that the number will decrease to 543,000 by 2040. It was also found that the investment in smart city projects in Anyang, based on the Plan for Anyang Smart City, would have the following effects: easing population decline, increasing number of businesses, improving urban safety index, and increasing average driving speed. The population will grow by 4,000 and the number of businesses will increase by 761 than before budget investment. The result of this paper is expected to contribute to identifying and predicting the effect of smart city policies from a long-term perspective.

• Journal of the Korea Society of Computer and Information
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• v.29 no.4
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• pp.73-82
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• 2024

In 2017, the United Nations reported that the population aged 60 and above was increasing more rapidly than all younger age groups worldwide, projecting that by 2050, the population aged 60 and above would constitute at least 25% of the global population, excluding Africa. The world is experiencing a decline in the rate of increase in the working-age population due to global aging, and the younger generation tends to avoid difficult and challenging occupations. Although theoretically, AI equipped with artificial intelligence can replace humans in all fields, in the realm of practical information security, human judgment and expertise are absolutely essential, especially in ethical considerations. Therefore, this paper proposes a method to retrain and reintegrate IT professionals aged 50 and above who are retiring or seeking career transitions, aiming to bring them back into the industry. For this research, surveys were conducted with 21 government/public agencies representing demand and 9 security monitoring companies representing supply. Survey results indicated that both demand (90%) and supply (78%) unanimously agreed on the absolute necessity of such measures. If the results of this research are applied in the field, it could lead to the strategic development of senior information security professionals, laying the foundation for a new market in the Korean information security industry amid the era of low birth rates and longevity.

• Asian-Australasian Journal of Animal Sciences
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• v.25 no.9
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• pp.1223-1228
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• 2012

The population sizes of three Korean indigenous cattle populations have been drastically reduced over the past decades. In this study, we examined the extent to which reduction in populations influenced genetic diversity, population structure and demographic history using complete mitochondrial DNA (mtDNA) control region sequences. The complete mtDNA control region was sequenced in 56 individuals from Korean Black (KB), Jeju Black (JEB) and Korean Brindle (BRI) cattle populations. We included 27 mtDNA sequences of Korean Brown (BRO) from the GenBank database. Haplotype diversity estimate for the total population was high (0.870) while nucleotide diversity was low (0.004). The KB showed considerably low nucleotide (${\pi}$ = 0.001) and haplotype (h = 0.368) diversities. Analysis of molecular variance revealed a low level of genetic differentiation but this was highly significant (p<0.001) among the cattle populations. Of the total genetic diversity, 7.6% was attributable to among cattle populations diversity and the rest (92.4%) to differences within populations. The mismatch distribution analysis and neutrality tests revealed that KB population was in genetic equilibrium or decline. Indeed, unless an appropriate breeding management practice is developed, inbreeding and genetic drift will further impoverish genetic diversity of these cattle populations. Rational breed development and conservation strategy is needed to safeguard these cattle population.

• International Journal of Industrial Entomology and Biomaterials
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• v.22 no.2
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• pp.65-74
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• 2011

The Scarites aterrimus (Coleoptera: Carabidae), is one of the carabid beetles dwelling exclusively on coastal sandy dunes. Habitat deterioration and equivalent activity have greatly concerned population declines in several species dwelling on the coastal sandy dunes. As a first step to establish long-term conservation strategy, we investigated the nation-wide magnitude and nature of genetic diversity of the species. As a first step, we sequenced a portion of mitochondrial COI gene, corresponding to "DNA Barcode" region (658 bp) from a total of 24 S. aterrimus individuals collected over nine sandy dunes belonging to four Korean provinces. The sequence analysis evidenced moderate to low magnitude of sequence diversity compared with other insect species distributed in Korean peninsula (0.152% to 0.912%). The presence of closely related haplotypes and relatively high gene flow estimate collectively suggest that there had been no historical barriers that bolster genetic subdivision. Population decline was postulated on the basis of several missing haplotypes that are well found in the species with a large population size. This interpretation is consistent with field observation of small population size in the coastal sandy dune habitats. The highest genetic diversity estimates were found in the coastal sand dune population of Seogwipo, Jeju Island, justifying a prior attention to the population, in order to sustain overall genetic diversity of the species. Further scrutinized study might be required for further robust conclusion.

• Journal of the Korean Institute of Rural Architecture
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• v.13 no.1
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• pp.63-70
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• 2011

This study is about characteristic of rural areas development project considering Rural Areas Migration. As a Rural Economy is getting worse for a rapid decrease in population and a rapid aging of the population, Decline in Rural areas has become more serious. So, Each local government is promoting rural areas development project, like Culture Village Project, Rural Village Project, Happiness Village Project, and Farming and Fishing New-town Project, to attract inhabitants in the Urban Area. This study examines the change of policy about rural areas development project in Corea through theoretical study, and analyzes the Implementation of rural village Project supported or implemented by local community to characterize the project.

• Journal of Yeungnam Medical Science
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• v.37 no.4
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• pp.296-301
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• 2020

The geriatric population is at a greater risk of postoperative complications than young adults. This risk is associated with the physiologic decline seen in this population known as frailty. Unlike fitter patients, frail patients who undergo operative treatment have a greater likelihood of developing postoperative complications and endure prolonged hospital stays. This circumstance is comparable to the urological status. Therefore, tolerable measurement of frailty as a domain of preoperative health status has been suggested to ascertain vulnerability in elderly patients. In this review, we will elaborate on the concept of frailty and examine its importance with respect to surgical complications, focusing on the urological status.

• Journal of Korean Society of Water and Wastewater
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• v.18 no.5
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• pp.649-655
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• 2004

The behavior of biological particles in DAF (dissolved air flotation) process was analyzed by employing PBT (Population balance theory). After decline growth phase of activated sludge, the value of the initial collision-attachment efficiency was increased over than 0.35 corresponding relatively high value in the whole life cycle of microorganism. For practical application of DAF as a solid separation process. It is desirable that microbial particles should be operated to perform high solid removal efficiency in biological wastewater treatment.

• Journal of Engineering Education Research
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• v.18 no.2
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• pp.14-26
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• 2015

The purpose of this study was to analyze the number of university entrants influenced by the population decline of school age, to discuss the major issues of university restructuring policy initiated by government, and to suggest the mid- to long-term policy agenda on university restructuring. According to the analysis of university enrollment changes, university enrollment quota will decrease to 29% of year 2013. And the ratio of private university enrollment and the entrants of universities in the metropolitan areas will increase. Under these circumstances, it is highly concerned that high school graduates will be more concentrated to private universities located in the metropolitan areas. The government policy on university restructuring have several problems on the direction, the pursuing strategies, and the negative impacts of it. This study suggested the new paradigm for the university development and also the alternative strategies such as the balanced development in universities, financial support system, school-to-work policy, university collaboration system, and an enactment of university development.

• Korea journal of population studies
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• v.27 no.2
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• pp.205-229
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• 2004

이 글은 강원남부 탄광지역의 쇠퇴와 인구사회학적 변동 양상을 검토하는데 그 목적이 있다. 이를 위해 우선 탄광지역의 특성을 살펴보고 탄광지역이 쇠퇴하게 된 원인을 규명하고자 한다. 그 다음으로 지역사회에 나타나고 있는 산업구조와 인구구조의 변화를 중점적으로 살피고자 한다. 연구 결과 태백지역이 쇠퇴하게 된 직접적인 요인은 석탄산업 합리화 정책의 시행으로 볼 수 있다. 이와 함께 태백지역은 탄광산업이 지역성장이 유일한 원동력이었다는 사실 즉, 탄광산업의 쇠퇴는 바로 이 지역의 급격한 경기침체와 인구유출의 직접적인 원인이 되었음을 알 수 있다. 급격한 경기침체는 산업구조의 변화에서 잘 드러나고 있으며 인구유출 양상은 지역의 인구변화 추이에서 잘 드러나고 있다. 최근 폐광지역개발지원특별법에 의해 수립된 종합개발계획도 상당 부분 무산되거나 기약 없이 미뤄지고 있다는 점과 지역개발을 강원랜드 카지노에만 지나치게 의존하고 있는 문제점 등이 드러나면서 지역경기 침체와 인구감소 추세는 계속되고 있다. 탄광지역의 주민소득 증대는 물론 새로운 고용창출로 지역경제를 활성화시키는 보다 구체적이고 실질적인 발전 전략이 필요하다.

• The Korean Journal of Rehabilitation Nursing
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• v.7 no.1
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• pp.7-14
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• 2004

To examine the cognitive function of elderly, the study examined the performance of Korean normal elderly population whose age over 65 using neuropsychological instruments. It was predicted that the performance of the Korean population would be different from the U, S. mainly due to their difference in language, culture, and education. Korean elderly people from the Chungchung and Daejeon Metropolitan city(n=97) participated. Two age scores were developed: below 74 years and over 75 years. The effect of age, gender and education was examined, which yield significant age, gender and education effect. The score of DSF, DSB, TMTA, and TMTB are expected to be utilized for research purposes, such as basic, clinical, epidemiological studies, as well as practice purposes such as diagnosis and assessment of the progression of cognitive decline and dementia with MMSE-K.