• Journal of Animal Science and Technology
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• 제44권5호
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• pp.573-584
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• 2002

젖소의 에너지 및 단백질 영양상태를 평가할 수 있는 MP와 MUN을 측정하여 농장의 사료급여 실태를 평가하기 위해서 1999년 1월부터 2001년 12월까지 전국 4,856개 목장, 132,636두를 대상으로 유성분을 측정하였다. 조사된 개체유의 평균 MP와 MUN 수준은 각각 3.30${\pm}$0.35%와 16.0${\pm}$5.2mg/dl였으며, MP에 있어서는 3.10${\sim}$3.20%를 중심으로, MUN은 15.0mg/dl을 중심으로 하는 정규곡선을 나타내었다. 계절별 MP와 MUN의 수준은 외기 온도가 높은 하절기에는 MP의 함량이 3.2% 이하로 감소한 반면, MUN 수준은 16.5mg/dl 이상으로 가장 높았고, 반대로 동절기에는 MP가 3.35% 이상으로 가장 높았으며, MUN 수준은 15.0mg/ dl 이하로 가장 낮았다. MP 함량과 MUN 농도와의 관계에서는 MP가 정상 기준보다 낮은 2.90% 미만에서는 MUN 농도가 전체 평균보다도 높았고(17.3${\pm}$5.2mg/dl), MP가 정상 기준보다도 높은 3.70% 이상에서는 전체 평균과 비슷한 수준을 나타내었다. 개체유 및 집합유를 대상으로 MP 및 MUN 측정에 의한 사료내 에너지와 단백질 균형상태를 예측하였다. 그 결과 전반적으로 단백질은 부족보다는 과다가, 그리고 에너지는 과다보다는 부족이 많은 것으로 조사되었으며, 그 중에서도 비유초기에는 에너지 부족이, 비유말기에는 단백질 과다가 상대적으로 많은 것으로 조사되어 국내의 경우 무엇보다도 에너지 및 단백질의 균형적인 사료공급의 필요성이 제시되었다.

• 통상정보연구
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• 제9권1호
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• pp.467-491
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• 2007

The Korean Peninsula has the gateway role of Far East Asia in economic aspect, because it is the channel to global world that Korea and Japan should take in the future. Till now, there was no real economic cooperation in service industry for two Koreas. Nevertheless, it is high time that two Koreas have to play a gateway role in order to pave the way to come true their global vision. This paper aims to examine the possibility of economic cooperation between two Koreas in service sector and explore the vision and strategy which are useful for the ways toward peaceful unification on the Korean Peninsula and two Koreas' future survival in the midst of global competition. Economic cooperation in service sector, such as transport, tourism, educational services, etc. between two Koreas means establishing and strengthening the infrastructure of their unification. If there were no cooperation of service sector on the Korean Peninsula, we also could not expect the outcome of economic cooperation and the vision of Korea's unification. To sum up, the strategy recommended for the Korean Peninsula's global vision is that two Koreas should simultaneously open the window of economic cooperation in service sector and link the interface between the Eurasian continent and the Korean Peninsula.

• 보건행정학회지
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• 제24권3호
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• pp.283-290
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• 2014

Background: This study aimed to examine the relationship between home-visit nursing services and health care utilization under the public long-term care insurance program in Korea. Methods: We analyzed the long-term care need assessment database and the long-term care and the health insurance claim databases of National Health Insurance Service between July 2011 and June 2012. The sample includes a total of 20,065 home-visit nursing recommended-older beneficiaries who use home-visit nursing and/or home-visit care, based on a standard benefit model developed by the Health Insurance Policy Institute of National Health Insurance Service. The beneficiaries were categorized into home-visit nursing use and non-use groups, and the home-visit nursing use group was again divided into high-use and low-use groups home-visit nursing, based on their total annual home-visit nursing expenditure. Two-part models and negative-binomial regression models were used for the statistical analysis. Results: The home-visit nursing use was negatively associated with the number of outpatient visit and cost, while adjusting for all covariates. The home-visit nursing use was also negatively associated with the inpatient cost among the high home-visit nursing use group. Conclusion: The findings implies home-visit nursing use prevents health care utilization. Further studies and policy strategies that can promote and strengthen home-visit nursing services under the public long-term care insurance are necessary in Korea.

• 대한교통학회지
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• 제14권3호
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• pp.75-90
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• 1996

The objective of study is to examine relationship between traffic flow characteristics of two lane entrance terminal and acceleration length, and to suggest the acceleration length by level of service. The relationship between the speed ratio and the distance from the ramp appeared to be a quadratic concave from. In the case of two lane entrance ramp, the acceleration length is suggested as 1.4~2.0 times longer than the acceleration length of one lane entrance ramp. It is also recommended that acceleration length for two lane entrance ramp should be designed according to the level of service at the right most lane (level of service A : 1.4 B : 1.6 C : 1.8 D : 2.0 times of the one lane entrance ramp acceleration length) on freeway.

• 제어로봇시스템학회논문지
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• 제6권8호
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• pp.629-637
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• 2000

Unbalance between user requirements and insufficient network resources makes a congestion. In the future since the communication networks will have very heavy traffic congestion will be more serious. The ATM networks was recommended to support the B-ISDN service for the future multimedia communication. In thie sense of congestion avoidance and recovery the ABR service category in ATM networks allows the feedback flow control mechanism to dynamically allocate the idle bandwidth of the network to users fairly and to control the network congestion rapidly In this paper we introduce a congestion control scheme using systematical approach to confirm robust stability with respect to unknown round trip delay for the network which has both unicast and multicast connections.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2001년도 춘계학술대회 논문집 전력기술부문
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• pp.316-318
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• 2001

Occasionally, equipment in a distribution system fails due to damage from weather, vandalism, or other causes. In addition, it is recommended practice to have some way in which maintenance or replacement of every element in a system can be performed without causing lengthy interruption of electrical service to the customers it feeds. Thus, alternate sources, paths, and configurations of service must be planned so that both failures and maintenance do not affect customer service beyond a reasonable amount. In some cases, planning for alternate routes of service during equipment outages or emergencies -- will be the major aspect influencing selection of a feeder's capacity, type of route, or layout. We want to know the relationship between molt-dividing multi-connection and distribution reliability for contingency support considerations.

• ETRI Journal
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• 제36권2호
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• pp.271-279
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• 2014

This paper proposes a new broadcasting system for the service-compatible 3DTV in which the 3D service can coexist with the conventional digital TV broadcast. In the proposed system, the commercial 3DTV service can be implemented via the existing DTV channel without utilizing the dedicated 3DTV system. This 2D/3D system interworks with the conventional system and can switch to 2D or 3D service according to the broadcast programming and schedule. The system also provides a mechanism that can prevent the synchronization mismatch between left and right video streams and between the stream and the associated signaling in the 2D/3D transition periods. The picture quality measurements are carried out based on the ITU-R recommended test to check the level of quality of service provided by the proposed scheme. The conformity tests are also performed with the conventional channel and the receiver for the DTV system to confirm the feasibility of the proposed one for the commercial service.

• 한국과학교육학회지
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• 제23권4호
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• pp.341-359
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• 2003

The purpose of this research was to determine whether the present Korean teacher education programs for secondary science teachers are effective in improving the teacher conceptions of constructivism and STS. It is because the current Korean National Science Curriculum is consistent with both ideas as reforms. The teacher education programs sampled in the research included pre-service programs and two types of in-service programs. These two were the Qualifying In-service Program and the Iowa Korean Science Teachers Workshop. The Iowa Program was considered as an experimental program emphasized the constructivist perspective. Specially designed questionnaires for identifying teacher conceptions before and after the programs were administered. The conceptions about constructivism and STS improved as a result of the instruction in both of the pre-service and in-service teacher education programs. The pre-service program was more effective than the in-service programs in improving the teacher conceptions of both constructivism and STS. The Qualifying Inservice program was less effective than Iowa Korean Science Teachers Workshop. It was necessary for inservice programs for Korean secondary science teachers to be more emphasized on constructivism and STS. Iowa Korean Science Teachers Workshop provided a possible example to design a new special in-service program focused on constructivist perspectives as a way of aligning the Korean National Science Curriculum more quickly with recommended teaching practices in Korean schools.

• 대한간호학회지
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• 제39권1호
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• pp.124-135
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• 2009

Purpose: The purpose of this study was to evaluate the service satisfaction for families who have someone with mental illness, and are using community mental health centers in Gyeonggi Province. Methods: The participants in this study were 796 family members. Data were collected using Family satisfaction survey questionnaire developed by the author (23 items on family service and 15 items on client service). Results: The total satisfaction level for the service with family and client resulted in above average scores. Of the 23 service items, data showed the highest level of satisfaction was with professional skills and attitude, and day rehabilitation programs, and the lowest for professional activities for advocacy and social welfare benefits, emergency & crisis intervention, medical expense subsidies. Of the 15 service items, job and housing related service had the lowest level of satisfaction. Conclusion: It is recommended that psychiatric emergency & crisis intervention programs and system development be accelerated. Also, there is a need to develop medical expense subsidy programs for older family caregivers, job and housing focused rehabilitation programs and community facilities for the client, as well as more active and powerful professional advocate activities for persons who have mental disabilities and their families.

• 한국동물위생학회지
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• 제27권4호
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• pp.335-343
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• 2004

Although human rabies deaths are rare, the disease remains a public health problem in Korea. Here we report the outbreaks and surveillance of animal rabies in Gangwon-do. Animal rabies infections were identified in 119 animals from 1993 to 2003. The $78\%$ of all rabid animals were domestic species in Gangwon-do. Wild Korean raccoon dog (N. p. koreensis) continued to be the only reported rabid wildlife species. Outbreaks of rabies infections in Korean raccoon dogs are found in broad geographic regions across the northern Gangwon-do. The principal rabies hosts today are probably wild animals in Gangwon-do. The malaise, cerebral dysfunction, anxiety, confusion, agitation and abnormal behavior of the animals were the important symptoms of the disease. The Encephalitis, infiltration with lymphocytes and polymorphonuclear leukocytes and the inclusion bodies (Negri bodies) in neuronal cells were the specific histopathological signs. The results of indirect fluorescent antibody test (IFA) for animal rabies diagnosis were identical and the technique was useful to diagnose the disease. Preexposure vaccination is recommended for persons in high-risk groups, such as laboratory workers, veterinarians and certain animal handlers.