• Korean Journal of Veterinary Service
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• v.36 no.1
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• pp.57-60
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• 2013

This study was carried out to investigate the prevalence and antimicrobial resistance patterns of Campylobacter jejuni isolated from duck feces. In total, 112 (32.9%) isolates of C. jejuni were identified from 430 duck feces samples from September to December, 2010. All isolates were susceptible to telithromycin, whereas majority of the C. jejuni isolates were resistant to azithromycin (18.8%), ciprofloxacin (86.6%), erythromycin (0.9%), gentamicin (15.2%), tetracycline (80.4%), florfenicol (3.6%), nalidixic acid (87.5%), clindamycin (7.1%). As a result, appropriate protocols for antimicrobial agents and strategies to reduce antimicrobial resistance will be needed in the future.

• Journal of Agricultural Extension & Community Development
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• v.4 no.1
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• pp.353-358
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• 1997

In January 1997, there was a change in agricultural extension system enrolling the provincial and county level extension personnel in local government. They were previously enrolled in central government. Even though the extension agents' status were secured, but there were some complaints from the extension personnels until now. The purpose of this study was to examine the possibility to improve the extension service after the change. Some of the tasks for improvements from the change were as follows; 1) Revision of the laws related to rural development to protect against side effects on the localization, 2) Revision of the provisions to interchange personnels between the central and local extension service, 3) Provisions for organizing county level agricultural extension committee, and 4) Central government's support for the personnel expenses of local extension agents. Though there were such several improvements, some extension personnel still raise objection to the change as following; (1) the right of personnel management mandated partially from the chief of local government to the chief of the extension office, (2) substantial raising of the extension agents' pay, and 3) promotion in rank of extension educators.

• Korean Journal of Veterinary Service
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• v.34 no.3
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• pp.285-289
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• 2011

This study was conducted to determine the content of non-steroidal anti-inflammatory drugs (NSAIDs) in meats available on the Korean markets. The analysis was carried out using following conditions; C18 column ($100{\times}2.1$ mm, 1.7 ${\mu}m$), mobile phase composed of DW (containing 0.1% formic acid): acetonitrile (containing 0.1% formic acid), binary pump at a flow rate of 0.3 ml/min and 5 ${\mu}l$ of injection volume, MS/MS detector with ESI positive mode. The calibration range of five NSAIDs showed linearity ($r^2{\geq}0.99$) at concentration range of 3.125~200 ${\mu}g$/kg. The recoveries in fortified muscle more than 78.7~100.3%. The detection limits for meloxicam, ketoprofen, flunixin, carprofen and tolfenamic acid were 3.5, 1.6, 1.7, 9.8 and 4.8 ${\mu}g$/kg, respectively. We also monitored NSAIDs residue in cattle muscle 51 samples. The test results, NSAIDs were all not founded.

• Journal of applied mathematics & informatics
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• v.25 no.1_2
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• pp.389-405
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• 2007

In this paper, we study a k-out-of-n system with single server who provides service to external customers also. The system consists of two parts:(i) a main queue consisting of customers (failed components of the k-out-of-n system) and (ii) a pool (of finite capacity M) of external customers together with an orbit for external customers who find the pool full. An external customer who finds the pool full on arrival, joins the orbit with probability ${\gamma}$ and with probability $1-{\gamma}$ leaves the system forever. An orbital customer, who finds the pool full, at an epoch of repeated attempt, returns to orbit with probability ${\delta}\;(<\;1)$ and with probability $1-{\delta}$ leaves the system forever. We compute the steady state system size probability. Several performance measures are computed, numerical illustrations are provided.

• International Journal of Quality Innovation
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• v.9 no.2
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• pp.1-9
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• 2008

This paper proposes a scheme to estimate the technical efficiency at child care centers for the less-than-three-year-old infants by Data Envelopment Analysis (DEA) and to manage the quality of care service through implementing flexible and efficient government subsidy system. The result of technical efficiency estimation shows that there exists the heterogeneity in technical efficiency a substantial opportunity for improvement in technical efficiency across child care centers. This result implies that government may bring up the competition by giving subsidy differentially based on efficiency and use the money which has been used inefficiently other purposes. Both can improve the quality of child care service.

• IE interfaces
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• v.21 no.2
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• pp.237-246
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• 2008

In today's competitive global environment, technological innovation is an important issue. Many countries are devising national level strategies to further strengthen industrial capacity in support of innovative companies. South Korea is no exception, and multiple strategies are in place to aid innovative development in the private sector. This study postulates that such national level strategies are applied differently depending on the innovation goal pursued by the service sector in Korea. We use data mining methods to test such research hypothesis. Factor analysis is used for clustering of various service companies, while association rule is used in finding the relationship per each cluster. The results show that national level strategies are underutilized and unequally distributed. This may be attributed to the disparity between the demand and needs of the private sector and the opinion of the government, which lead to underutilized and indistinguishable strategies.

• Journal of the Society of Disaster Information
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• v.2 no.1
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• pp.19-38
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• 2006

With rapid social change, security industries were diversified and universities related total security service were founded for training of specialist with a theory and practical affairs. Today, universities must provide an education which fits to job characteristics in rapidly changing society. Also students through this education must find their job properly. The purposes of this study, therefore, are to search a career selection of students majoring in total security service related departments and to study a role of universities for development of specialist related security industries. Revitalization plan of human resources for departments related security services are as follows ; roles of universities: a specialization of curriculum and a diversification of training method. 'academic-industrial cooperation', role of government: 'a legal and institutional policy on academic-industrial cooperation';. Universities, cooperations, government must cooperate mutually for development of specialist related security service field.

• Journal of the Korea Society of Computer and Information
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• v.21 no.12
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• pp.107-114
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• 2016

Web system helps high-performance processing for big-data analysis and practical use to make various information using IT resources. The government have started the RPS system in 2012. The system invigorates the electricity production as using renewable energy equipment. The government operates system gathered big-data with various related information system data and the system users are distributed geographically. The companies have to fulfill the system, are available to purchase the REC to other electricity generation company sellers to procure REC for their duty volumes. The REC market operates single auction methods with users a competitive price. But the price have the large variation with various user trading strategy and sellers situations. This papler proposed RPS system modeling and simulation in web environment that is modeled in geographically distributed computing environment for web user with DEVS W/S. Web simulation system base on web service helps to analysis correlation and variables that act on trading price and volume within RPS big-data and the analysis can be forecast REC price.

• International journal of advanced smart convergence
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• v.10 no.2
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• pp.53-58
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• 2021

In this paper, based on the real estate registration model in the Chinese internet environment, we propose a model for the joint business of banking collateral registration. This is to increase the efficiency and service level of the real estate mortgage registration process. And it can solve the problems that in the process of registering a mortgage loan, difficulty of data sharing between the real estate registration agency and the bank, and ordinary users and bank clerks duplicate unnecessary work. In addition, it realizes joint processing and data sharing of real estate registration work with real estate registration agencies and banks, increases the efficiency and level of government affairs services, and offers an optimized solution to realize a one-stop service for real estate security registration. The results of this study are expected to provide theoretical support for the application and innovation of the Internet environment real estate registration model.

• Korean Journal of Mathematics
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• v.29 no.2
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• pp.371-386
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• 2021

This paper investigates two discrete time queueing inventory models with positive service time and lead time. Customers arrive according to a Bernoulli process and service time and lead time follow geometric distributions. The first model under discussion based on replenishment of order upto S policy where as the second model is based on order placement by a fixed quantity Q, where Q = S - s, whenever the inventory level falls to s. We analyse this queueing systems using the matrix geometric method and derive an explicit expression for the stability condition. We obtain the steady-state behaviour of these systems and several system performance measures. The influence of various parameters on the systems performance measures and comparison on the cost analysis are also discussed through numerical example.