• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2008년도 학술발표회 논문집
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• pp.1111-1115
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• 2008

The relative magnitudes of the individual terms of the momentum equation are analyzed and compared by the analytical methods in open channel flow. The temporal variations of each term(local acceleration term, convective acceleration term, pressure force term, gravity force term, and friction force term) are analyzed for the influence factors to runoff expressed by the parameters of the momentum equation, stream slopes and roughness coefficients. The magnitudes of each term vary with the channel characteristics, especially when the roughness coefficients are dominant or for the mild stream slopes the pressure term can not be negligible. As a result of the characteristics of momentum equation in open channel flow, the acceleration terms are very small compared with the other terms. The magnitudes of local acceleration and convective acceleration offsets each other. The peak time of each term except the gravity term coincides with inflection point of the hydrograph rising limb each other.

• Journal of Contemporary Eastern Asia
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• 제15권2호
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• pp.177-190
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• 2016

One of the main objectives of this paper is to provide insight to understand the effect of natural disasters on local government finance. That is, to analyze local governments' sales tax revenues after Hurricane Ike. Three Texas cities are examined: League City, Pearland, and Sugarland. Based on data collected from the Texas Comptroller's Office and the US Census, we found local governments experience a short-term increase in sales tax revenues and a long-term decline after the hurricane strike the region. On average, a major hurricane has a two-year impact on local government economy. The findings are essential for practitioners because in order to have a prosperous recovery after natural disasters, public managers have to prepare financially for short term changes in their sales tax revenues.

• Fisheries and Aquatic Sciences
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• 제16권2호
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• pp.117-124
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• 2013

We investigated the short-term and local changes in the thermohaline front in the Jeju Strait, Korea, which is usually formed during winter and spring. To do so, we compared Real-Time Observation System by Ferryboat (RTOSF) data with wind data and routinely collected oceanographic data. During February and April 2007, a thermohaline front formed in the Jeju Strait around the 13-$14^{\circ}C$ isotherms and 33.0-33.5 isohalines. The thermohaline was clearly weakened and began moving southward in mid-March. The variations in the surface temperature and salinity showed a continuous north-south oscillation of the thermohaline front with a period of 3-10 days. The speed of the short-term and local fluctuation of thermohaline front was about 5-30 cm/s. We confirmed these findings by examining the variation in the maximum temperature gradient and $14^{\circ}C$ isotherm during the study period. These short-term and local changes had not been previously detected using serial oceanographic and satellite data. Analysis of local wind data revealed a northerly wind fluctuation with a period of 3-10 days, which was clearly related to the short-term and local changes in the thermohaline front. The short-term and local changes of the thermohaline front in the Jeju Strait originated from local changes in the winter monsoon in this area.

• 보건행정학회지
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• 제30권2호
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• pp.142-150
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• 2020

The purpose of this study is to analyze the long-term plans of the central and local governments in order to plan policy and implementing programs. Through this, the governments is find out to reduce administrative burden. Based on the national health plan, evidence and related laws were collected and analyzed. As a quantitative methodology analyzed the contents of related laws in the overall plan. The qualitative methodologies analyzed and categorized the planning status of cities and provinces in the plan and were collated. There are a total of 39 plans for long-term plans by laws. The role of the central and local governments in the public health sector, there are a total of four plans (10.3%) that need to establish long-term and annual plans for the central and local (cities, provinces) government. A total of seven plans (17.9%) were required to establish a plan by the only local government. In terms of the public health sector on the local governments, 20 plans (51.3%) by cities and 12 plans (30.8%) by provinces were established by law. And in the health sector should be established 9 plans (40.9%) by cities and 7 plans (31.8%) by provinces. The plan needs to be reformed and merged between plans so that governments can focus on the program through planning central government policies, reducing local government administration.

• 한국운동역학회지
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• 제13권1호
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• pp.185-204
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• 2003

The purpose of this study was to obtain the data for stable and accurate techniques of the free throw in basketball. The subjects of this study were seven male basketball player consisted of college students athletes. Free throw motions were taken by video camera. The three-dimensional coordinates was processed by DLT. The variables were the velocity, the angular velocity of the upper extremity segments, degree, and angular momentum. The result of analysis is summarized as follows. 1. The velocity and angular velocity of the upper extremity segment was showed an gradual increase and a smooth velocity transfer, transferring from proximal segment to distal segment at free throw motion in basketball. 2. The local term and remote term angular velocity momentum of the proximal segment showed larger than that of the distal segment in X, Y, Z axis component all. 3. The remote term angular momentum was showed larger than that of the local term angular momentum in X, Y, Z axis component all. 4. The angular motion of the upper trunk and upper arm, upper arm and forearm was showed in opposite direction and symmetrical angular momentum in local term angular momentum of the Y and Z axis component. 5. All the segments of upper extremity segment was showed left rotation in remote term angular momentum of the Y axis component and right rotation in remote term angular momentum of the Z axis component.

• Journal of the Korean Society for Industrial and Applied Mathematics
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• 제21권3호
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• pp.125-142
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• 2017

In this paper, development of the three-dimensional structural analysis is performed by applying FETI-local method. In the FETI-local method, the penalty term is added as a preconditioner. The OPT-DKT shell element is used in the present structural analysis. Newmark-${\beta}$ method is employed to conduct the dynamic analysis. The three-dimensional FETI-local static structural analysis is conducted. The contour and the displacement of the results are compared following the different number of sub-domains. The computational time and memory usage are compared with respect to the number of CPUs used. The three-dimensional dynamic structural analysis is conducted while applying FETI-local method. The present results show appropriate scalability in terms of the computational time and memory usage. It is expected to improve the computational efficiency by combining the advantages of the original FETI method, i.e., FETI-mixed using the mixed local-global Lagrange multiplier.

• 보건행정학회지
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• 제30권4호
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• pp.522-530
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• 2020

Background: In 2008, Korea implemented a new type of social insurance known as "long-term care insurance". We examined the association between ownership of long-term care facilities and the incidence of pressure ulcers after the implementation of "long-term care insurance". This study is a population-based retrospective cohort study from 2006 to 2013. Methods: We used medical claims data from the Korean National Health Insurance Corporate Elderly Cohort Database from 2006 to 2013. These data comprise a nationally representative sample. To avoid confounders, only patients admitted to one long-term care facility and who stayed for >70% of the follow-up time were included; as a result, 3,107 individuals were enrolled. The main independent variable was the operating entity of the long-term care facility (local government, corporate bodies, and private for-profit owners), and the dependent variable was the 1-year incidence of pressure-ulcers. Survival analysis (Cox proportional hazard model) was used as an analysis method. Results: Compared to patients admitted to local government long-term care facilities, patients admitted to private long-term care facilities had a significantly higher 1-year risk of pressure ulcers (hazard ratio [HR], 1.94; 95% confidence interval [CI], 1.29-2.91); the risk was especially high among patients who were cognitively dependent (HR, 2.34; 95% CI, 1.25-4.37). Conclusion: Patients admitted to private for-profit long-term care facilities were more likely to have pressure ulcers compared to those in local government and corporate body long-term care facilities. Appropriate assessment tools and publicly available information, as well as more restricted legal requirements, are needed to improve the care quality and outcomes of patients in long-term care facilities.

• 정보관리학회지
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• 제21권3호
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• pp.251-267
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• 2004

이 연구에서는 전통적인 인쇄매체 환경에서 지식에 대해 지역적인 접근법을 제공하는 권말색인과 목차의 기능에 착안하여 용어 클러스터링 실험과 클러스터 대표어 선정 실험을 통해 개별문서의 지식구조 자동 생성 기법을 제안하였다. 자동 생성된 지식구조가 갖는 기능성을 평가하여 정보 검색 환경에서의 적용 가능성을 확인하였다. 용어 클러스터링 실험에서는 워드 기법의 성능이 중복 분류를 허용하는 퍼지 K-means 클러스터링 기법에 비해 높았으며, 클러스터 대표어 선정 기법으로는 단락빈도를 이용한 경우가 가장 좋은 성능을 나타냈다. 또한, 이용자 태스크를 기반으로 하여 최종적으로 생성된 지식구조의 기능성을 평가한 결과, 이 연구에서 자동 생성된 지식구조가 인쇄매체 환경에서의 권말색인과 목차가 갖는 기능을 어느 정도 수행한다는 것을 입증하였다.

• 전자공학회논문지C
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• 제34C권12호
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• pp.54-60
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• 1997

A new method to neglect the third term of the computational energy expression in the single-layer neural network with feedback is introduced. The system often converges to local minima instead of to global minima, because the computational energy is not matched exactly with the cost function being optimized. One of the factors causing these tow functions different is the third term of computational enegy expression. Regarding this third term energy very small, it is always ignored in designing the system. However, a sthe system growing, this third term energy is also growing and this grown term makes the computational energy function much different from the cost function. In results of differency between two functions, system converges to local minima more than before. In this paper, a new method to neglect te third term energy is introduced, so that the system with tis new method has been imroved.

• 한국콘텐츠학회논문지
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• 제19권8호
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• pp.1-9
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• 2019

본 연구는 지방자치단체 무기계약직의 평가관리가 성과에 미치는 영향을 실증적으로 분석하였다. 이와 더불어, 교육훈련이 평가관리와 성과의 관계에서 유의미한 조절효과가 있는지를 검증하였다. 분석 결과, 무기계약직의 평가관리는 성과관리에 긍정적이며 유의미한 영향을 미치는 것으로 확인되었다. 또한, 조절효과의 크기는 작지만, 교육훈련은 평가관리와 성과의 관계에 있어 유의미한 조절효과를 가지는 것으로 나타났다. 본 연구는 지방자치단체 무기계약직을 대상으로 인사관리의 구성요소들 간의 양적관계를 검증함으로써 무기계약직 선행연구들의 연구 범위 및 영역의 확장과 후속연구 수행의 활성화에 기여할 수 있다고 판단된다. 또한, 본 연구는 무기계약직의 인사관리를 담당하는 공무원과 조직이 보다 실질적이고 합리적인 무기계약직을 위한 인사관리 지침 및 방안을 구축하는 것에 활용될 수 있을 것이다.