• Title/Summary/Keyword: local change

Search Result 2,522, Processing Time 0.025 seconds

Scene Change Detection Using Local $x-^{2}-Test$ (지역적 $x-^{2}$-테스트를 이용한 장면전환검출 기법)

  • Kim, Yeong-Rye;Rhee, Yang-Won
    • Journal of the Korea Society of Computer and Information
    • /
    • v.11 no.3
    • /
    • pp.193-201
    • /
    • 2006
  • This paper presents a method that allows for detection of all rapid and gradual scene changes. The method features a combination of the current color histogram and the local $X^{2}-test$. For the purpose of this paper, the $X^{2}-test$ scheme outperforming existing histogram-based algorithms was transformed, and a local $X^{2}-test$ in which weights were applied in accordance with the degree of brightness was used to increase detection efficiency in the segmentation of color values. This Method allows for analysis and segmentation of complex time-varying images in the most general and standardized manner possible Experiments were performed to compare the proposed local $X^{2}-test$ method with the current $X^{2}-test$ method.

  • PDF

Change in Market Issues on HMR (Home Meal Replacements) Using Local Foods after the COVID-19 Outbreak: Text Mining of Online Big Data (코로나19 발생 후 지역농산물 이용 간편식에 대한 시장 이슈 변화: 온라인 빅데이터의 텍스트마이닝)

  • Yoojeong, Joo;Woojin, Byeon;Jihyun, Yoon
    • Journal of the Korean Society of Food Culture
    • /
    • v.38 no.1
    • /
    • pp.1-14
    • /
    • 2023
  • This study was conducted to explore the change in the market issues on HMR (Home Meal Replacements) using local foods after the COVID-19 outbreak. Online text data were collected from internet news, social media posts, and web documents before (from January 2016 to December 2019) and after (from January 2020 to November 2022) the COVID-19 outbreak. TF-IDF analysis showed that 'Trend', 'Market', 'Consumption', and 'Food service industry' were the major keywords before the COVID-19 outbreak, whereas 'Wanju-gun', 'Distribution', 'Development', and 'Meal-kit' were main keywords after the COVID-19 outbreak. The results of topic modeling analysis and categorization showed that after the COVID-19 outbreak, the 'Market' category included 'Non-face-to-face market' instead of 'Event,' and 'Delivery' instead of 'Distribution'. In the 'Product' category, 'Marketing' was included instead of 'Trend'. Additionally, in the 'Support' category, 'Start-up' and 'School food service' appeared as new topics after the COVID-19 outbreak. In conclusion, this study showed that meaningful change had occurred in market issues on HMR using local foods after the COVID-19 outbreak. Therefore, governments should take advantage of such market opportunity by implementing policy and programs to promote the development and marketing of HMR using local foods.

The Change in the Housing Affordability of Japanese Tenants and the Policy Implication (일본 임차가구의 주거비부담능력 변화와 정책적 함의)

  • Nam, Won-Seok
    • Journal of the Korean housing association
    • /
    • v.22 no.4
    • /
    • pp.23-32
    • /
    • 2011
  • The change in the Japanese rental housing policy since the 1990s appeared as a reduction in the role of central government, an expansion in the local government's discretion, and an increase in the dependence on the housing market. As a result, the supply of new public rental housing decreased drastically and the rent regulation was eased. This study is designed to evaluate the validity of the policy change through an analysis of the change in housing affordability of tenants during the period of 1983~2008. The analysis showed that the housing affordability and the accessibility to the housing market by tenants had been improved, confirming that if the public rental housing stock was properly used, the housing needs of the low-income tenants would be met without new supply. Therefore, it appeared that the change in the Japanese rental housing policy may have a certain amount of validity. However, the study pointed out that the validity of the policy change must be limited as the future risk factors such as the possibility of residualisation of public rental housing and the increase of poor households according to job insecurity were not well considered. Accordingly, in conclusion this study suggests that new policy instruments should be developed at central government-level, such as offering incentives for local governments and establishing a housing allowance etc.

Improvement of Vulnerability Assessment to Climate Change using LCCGIS (LCCGIS를 활용한 취약성 평가방법의 개선)

  • Kim, Young Soo;Lee, Seung Hoon
    • Journal of Climate Change Research
    • /
    • v.5 no.2
    • /
    • pp.165-178
    • /
    • 2014
  • National and local governmental adaptation plan for climate change will become mandatory in 2015. In order to establish the plan, assessment of vulnerability to climate change needs to be preceded. LCCGIS, a toolkit for vulnerability assessment, has been widely used by many local governments. However, assessment results by LCCGIS are not yet reliable because most of the vulnerability indices applied to LCCGIS have the same value for almost all administrative units in Korea. In this study, proxy variables for hard-collectable indices were introduced, and the results were compared with those without any proxy variables. Vulnerability assessment could be conducted subjectively due to uncertainty. Thus, determination of objective indices, understanding the available data, and changes of indices in local conditions were organized. Results from this study are expected to make vulnerability assessment reliable and contribute to assessing vulnerability to climate change reflecting on local governmental characteristics.

A Study on Institution Strengthening for International Youth Exchange in Rural Area (농촌 청소년 국제교류 지원체제 강화방안에 관한 연구)

  • Kim, Jin-Sook;Kim, Myung-Hee;Choe, Pyeong-Ik
    • Journal of Agricultural Extension & Community Development
    • /
    • v.11 no.2
    • /
    • pp.241-250
    • /
    • 2004
  • This study was carried out to strengthen institution of international youth change in rural area. References, in the field of international cooperation international youth exchange and youth's volunteer service were reviewed. Considering rural situation, poor human resources in terms of foreign languages and globalization are major problems for international youth exchange. Such problems as poor network among relevant organizations for international youth change, low level of rural internationalization and lacking of development plan for exchange program were pointed out. For effective international youth exchange, the following strategies were suggested : 1) networking among youth, local government, industries and community, 2) youth education for global citizenship, 3) globalization of local industries, local government, and rural community, et.c.

  • PDF

Laminar Convective Heat Transfer from a Horizontal Flat Plate of Phase Change Material Slurry Flow

  • Kim Myoung-Jun
    • Journal of Advanced Marine Engineering and Technology
    • /
    • v.29 no.7
    • /
    • pp.779-784
    • /
    • 2005
  • This paper presents the theory of similarity transformations applied to the momentum and energy equations for laminar, forced, external boundary layer flow over a horizontal flat plate which leads to a set of non-linear, ordinary differential equations of phase change material slurry(PCM Slurry). The momentum and energy equation set numerically to obtain the non-dimensional velocity and temperature profiles in a laminar boundary layer are solved. The heat transfer characteristics of PCM slurry was numerically investigated with similar method. It is clarified that the similar solution method of Newtonian fluid can be used reasonably this type of PCM slurry which has low concentration. The data of local wall heat flux and convective heat transfer coefficient of PCM slurry are higher than those of water more than 150$\~$200$\%$, approximately.

A Study on the Diagnosis and Improvement of Present Superintendent Election and Education Standing Committee System (현행 교육감 선거 및 교육상임위원회제도 진단 및 개선연구)

  • Joo, Chul-An
    • Journal of Fisheries and Marine Sciences Education
    • /
    • v.26 no.1
    • /
    • pp.22-33
    • /
    • 2014
  • This study is to diagnose the present superintendent election and education standing committee system for improvement based upon Constitutional values of local education system. The findings are the followings. To improve the election system of superintendent it is recommended to maintain present election system rather than change it drastically since the present system ensure relatively more autonomy, expertise, and political neutrality of local education system. However, the qualification such as years of educational experiences of superintendent candidates need to be restored. Regarding education standing committee it suggest that all or at least 2/3 members need to be educational representatives rather than general representatives. For superintendent as well as education standing committee election, it needs to elaborate the vote ballet such as change of candidates name order by voting place to reduce its effects to election results. It also needs to strengthen public management of election such as expenses and TV forums among candidates.

Annealing Effect of Local Anisotropy Field in Amorphous Co66Fe4Ni1B14Si15 Ribbon

  • Kim, C.G.;Jeong, M.H.;Jeong, M.H.;Yoon, S.S.;Yu, S.C.
    • Journal of Magnetics
    • /
    • v.3 no.4
    • /
    • pp.123-126
    • /
    • 1998
  • The magneto-impedance (MI) has been measured in the annealed Co66Fe4Ni1B14Si15 amorphous ribbon for the evaluation of anisotropy field. MI at the frequency of 10 MHz is related to the transverse permeability from rotational magnetization depending on the local anisotropy field. MI varies sensitively with the annealing temperature, reflecting the change of anisotropy field distribution. The local anisotropy fields evaluated from MI Profiles are discussed in terms of the magnetic softness and microstructural change by the annealing.

  • PDF

Twelve Years Changes in Local climate Factors and Annual fluctuations of Seed Production of the Carpinus tschonoskii Forest in Mt. jiri in Southern Korea (지리산 개서어나무림에서의 12년간 지역기후의 변화에 따른 연간 종자생산량의 변동)

  • 임영득;홍선기
    • The Korean Journal of Ecology
    • /
    • v.21 no.6
    • /
    • pp.809-814
    • /
    • 1998
  • Changes of annual seed production related to climate change were studied for 12 years in Piagol, a riparian valley in Mt. Jiri. Sixty-four seed traps (sized 0.5 ${\times}$ 0.5 $m^{2}$) were set up on the forest floor of surveyed area. Seeds were collected from these traps at an interval of 15 days from September to November since 1984. Vegetation of the study area was mainly consisted of the naturally regenerated Carpinus tschonoskii in the tree layer. Acer mono, Quercus serrata, Carpinus laxiflora and Symplocos chinensis also appeared in the same layer. Maximum production occurred in 1984 and 1994. As a result of comparing seed production with local climate factors for 12 years, seed productivity and the year of maximum production of Carpinus forest were merely related with precipitation, air temperature and duration of sunshine among local climate factors. Duration of sunshine was, however, not contributed to periodically high productivity of seed of riparian valley carpinus forest.

  • PDF

Study on the relationship between trust and organizational performance in local administrative organization- Focused on the local administrative organizations in Gangwondo-

  • Kim, Sun-Ok;Park, Sung-Yong;Lee, Hee-Choon
    • Journal of the Korean Data and Information Science Society
    • /
    • v.21 no.5
    • /
    • pp.983-997
    • /
    • 2010
  • This study is to explore the relationship between trust in local administrative organization and organizational performance. Local administrative organizations provide the citizens with administrative services. Heightening the organizational performance contributes the citizens' happiness and the stream of times through organizations' change. To provide high quality of administrative service to citizens, trust in organizations is more important than any other capital. The improvement of organizational performance needs through this social capital. Factors about trust variables and organizational performance variables are extracted through the theoretical discussions. To do the research, public servants in 7 local administrative organizations of Gangwondo were asked to do the survey about how trust in organizations affects organizationa performances. The results explain that trust variables are related to organizational performance, and the local administrative organization which is high in trust is high in organizational performance. Trust in local administrative organizations improves the organizational performance internally and the organization will obtain trust from the citizens externally.