• 월간낙농육우
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• v.30 no.4
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• pp.100-130
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• 2010

그 동안 정부는 한. 육우 및 젖소에서 조사료와 농후사료의 비율 40 : 60을 60 : 40으로 개선 하기 위해 각종 정책을 추진하여 왔다. 그러나 아직도 조사료 생산 기반확충, 작부 체계의 개편, 조사료의 유통 활성화, 품질 및 안전관리 강화 이를 위한 법적 제도적 지원 방안과 관련 산업의 부가가치 향상을 위한 정책 보완이 필요하다. 그 대안을 찾아보는 것이 본 연구의 목적이다. 생산기반을 수요와 공급 면에서 보면 지역적으로 불균형 현상이 일어나고 있고 지역별로 재배 여건에 적합한 다수확 우량 조사료 종자 보급이 필요한 경우도 있다. 실수요자에 대한 정부 지원에 대하여 미흡하다는 의견도 있는가 하면 특히 조사료 생산의 작업일수가 짧은 탓에 기계장비의 이용률이 저하되기도 하였는데 이에 대한 정부 지원 방안 개선의 여지가 있다. 유통 기반에서 보면 조사료의 특성상 부피가 크고 단가는 낮아 단위당 유통비용이 높아지므로 유통이 활성화되는 데 애로사항이 되어 왔다. 조합 간에만 유통비를 지급하게 되어 비조합 공급자에게는 판매가 어렵거나 구매력이 약해지는 문제점 개선이 필요하였는데 법인이 아닌 경종 농가와 축산농가가 상호 계약에 의해 효과적으로 공존 공영하는 일본의 사례를 벤치마킹해 볼 필요가 있다고 연구에서 밝히고 있다.

• Korean Journal of Legislative Studies
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• v.17 no.3
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• pp.145-170
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• 2011

당원중심 정당조직이 약화되고 있는 정당정치 변화추세 및 진성당원이 절대 부족한 실정에서 의원이나 원외위원장에 의해 동원되고 있는 당원들이 참여하는 경선의 현실적인 한계를 고려한다면, 당원 이외 유권자도 참여하는 보다 개방적인 경선을 지향할 수밖에 없는 상황이다. 이번에 국민경선의 확대내지는 제도화를 목표로 중앙선관위 및 한나라당과 민주당의 개혁특위가 제시하고 있는 공천안, 특히 모든 유권자가 참여할 수 있는 여야 동시 완전국민경선안은 선거인단을 모집하여 실시하는 기존의 제한적 국민경선보다 불공정한 동원, 역선택 등의 문제 해결에 도움이 되리라 본다. 하지만 여전히 해소되야 할 경선 공정성과 관련된 구조적인 문제는 경선이 치러지는 지역의 정당조직이 비민주적으로 운영되는 데에서 비롯되는 경선 후보들 간의 불균형 문제이며, 전략공천이라는 형태로 치러지는 사실상 하향식 공천 역시 경선 공정성을 크게 훼손할 소지가 있으므로 정당의 전략공천 비율은 더욱 축소되어야 할 것이다. 2012년 총선이 임박한 상황에서 현실적으로 무엇보다 시급한 것은 한나라당, 민주당 모두 공천제도 개혁안을 조속히 확정하고 선관위안을 법제화하는 일이며, 이를 통하여 유권자가 참여하는 정당경선의 제도화가 이루어질 때 최근 시민후보의 등장과 같은 시민사회의 도전으로부터 비롯된 정당정치의 위기상황을 더욱 새로운 정당정치로 나아가는 계기로 전환시키는 일도 보다 용이해 질 것이다.

• Monthly Duck's Village
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• s.247
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• pp.19-23
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• 2024

2003년 12월 10일 국내에서 첫 발생한 고병원성 AI는 올해까지 15차례 발생하며 1억 4,000여 만 마리의 가금류가 살처분됐고 이로 인한 방역예산 지출 누계액은 약 2조원에 달한다. 이 중 오리 발생 건수는 전체의 51.5%로 전체 가금산업에서 오리가 차지하고 있는 비율을 감안하면 오리에서의 AI 발생이 많은 편이라고 볼수 있다. 그러나 업계에서는 열악한 오리산업과 이에 따른 시설 문제 등 근본적 원인을 해결해야 한다는 지적이 일고 있다. 오리사육제한 등으로 인한수급불균형으로 산업이 침체되고 있는상황에 대한 대책도 필요한 상황이다. 이에 오리 주산지의 지자체에서는 오리산업에 대한 지원을 보다 구체화 시키고 있다. 주요 지자체의 눈에 띄는 오리관련 신규 지원사업을 알아본다.

• The Journal of Korean Institute of Next Generation Computing
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• v.13 no.5
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• pp.104-112
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• 2017

The CRE (Cell Range Expansion) that selects the small cell with more efficient uplink resources has been developed by 3GPP to relieve the problem of the traffic imbalance due to the power differences between macro and small cells in HetNet. In addition, ABS (Almost Blank Subframes) has been proposed to resolve the signal interference problem due to the operation CREs. This paper proposes an effective method to calculate the ABS ratio by considering the proportion of the number of UEs in CRE and macro cell ranges, as well as the number of small cells in a macro cell. The proposed method has been implemented on the LTESim simulator, and compared with previously proposed methods. The experimental results show that the proposed method can improve the throughput and packet loss ratio performances. In particular, it is also shown that CRE bias values affect those performances, and there exist effective CRE bias values to derive the best performances.

• Journal of Korea Multimedia Society
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• v.10 no.1
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• pp.13-25
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• 2007

A cache is used for optimization of query forwarding in the Grid database. To decrease network transmission cost, frequently used data is cached from meta database. Existing cache management method has a unbalanced resource problem, because it doesn't manage replicated data in each node. Also, it increases network cost by cache misses. In the case of data modification, if cache is not updated, queries can be transferred to wrong nodes and it can be occurred others nodes which have same cache. Therefore, it is necessary to solve the problems of existing method that are using unbalanced resource of replica and increasing network cost by cache misses. In this paper, cache management method for query forwarding optimization is proposed. The proposed method manages caches through cache manager. To optimize query forwarding, the cache manager makes caching data from lower loaded replicated node. The query processing cost and the network cost will decrease for the reducing of wrong query forwarding. The performance evaluation shows that proposed method performs better than the existing method.

• Journal of the Korea Society for Simulation
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• v.22 no.2
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• pp.93-100
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• 2013

Mixed model production system means that various products are manufactured alternately in a line, and it has become a popular system in the era of multi-product small-quantity production. However, in the mixed model production system using flow line, the unbalance among stations is not inevitable because the workloads of stations cannot be the same. Thus, flow line system has been replaced to cellular manufacturing system for reducing the loss of waiting due to the unbalance of stations. In this paper, we introduce the simulation case study of an automated welding line which produces the parts of excavator. The factory has considered replacing the mixed model flow line to the cellular manufacturing system based on FMC concept. The increase of production quantity is estimated about 26.7%, and the lead time is reduced more than 55%. Furthermore sensitivity analyses are conducted considering the changes of product-mix.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.1
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• pp.56-62
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• 2021

High forecast accuracy is required as social issues on particulate matter increase. Therefore, many attempts are being made using machine learning to increase the accuracy of particulate matter prediction. However, due to problems with the distribution of imbalance in the concentration and various characteristics of particulate matter, the learning of prediction models is not well done. In this paper, to solve these problems, a binary classification model was proposed to predict the concentration of particulate matter needed for prediction by dividing it into two classes based on the value of 80㎍/㎥. Four classification algorithms were utilized for the binary classification of PM10. Classification algorithms used logistic regression, decision tree, SVM, and MLP. As a result of performance evaluation through confusion matrix, the MLP model showed the highest binary classification performance with 89.98% accuracy among the four models.

• Journal of Preventive Medicine and Public Health
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• v.20 no.2 s.22
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• pp.301-311
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• 1987

The purpose of this study is to analyze degree of geographic maldistribution of physicians and changes in the distributional pattern in Korea over the years 1980-1985. In assessing the degree of disparity in physician distribution and in identifying changes in the distributional pattern, the Gini index of concentration was used. The geographical units selected for computation of the Gini index in this analysis are districts (Gu), cities (Si), and counties (Gun). Locational data for 1980 and 1985 were obtained from the population census data in the Economic Planning Board and regular reports of physicians in the Korean Medical Association. The rates of physicians located counties to whole physicaians were 10.4% in 1980 and 9.6% in 1985. In term of the ratio of physicians per 100,000 population, rural area had 9.18 physicians in 1980 and 12.95 in 1985, 7.13 general practitioner in 1980 and 7.29 in 1955, and 2.05 specialists in 1980 and 5.66 in 1985. Only specialists of genral surgery and preventive medicine were distributed over 10% in county and distribution of every specialists except chest surgery in county increased in 1955, comparing with that rates of 1980. The Gini index computed to measure inequality of physician distribution in 1985 indicate as follows; physicians 0.3466, general practitioners 0.5479, and specialists 0.5092. But the Gini index for physicians and specialists fell -15.40% and -10.42% from 1980 to 1985, indication more even distribution. The changes in the Gini index over the period for specialists from 0.3639 to 0.4542 for districts, from 0.2510 to 0.1949 for cities, and 0.5303 to 0.5868 for counties indicate distributional change of 24.81%, -22.35%, and 10.65% respectively. The Gini indices for specialists of neuro-surgery, chest surgery, plastic surgery, ophthalmology, tuberculosis, preventive medicine, and anatomical pathology in 1985 were higher than Gini indices in 1980.

• Korea journal of population studies
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• v.26 no.1
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• pp.171-194
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• 2003

The present study investigates the effects of lopsided regional policy and social prejudice on homeownership disparities by household's place of birth of household head in Seoul. The present study utilizes individual household-level census data (2% sample) to evaluate households' residential well-being denoted by homeownership status during the period of 1980-2000. Decomposition techniques based on tenure choice models were used to provide evidences of the home-ownership disparities caused by regional policy and prejudice. We found that households from Gangwon and Honam provinces represent a disproportionately small percentage of homeownership compared with those originated from other provinces. In the statistical analysis, the present study found that having controlled for the factors traditionally thought to influence households' choice of housing tenure, as well as other housing market characteristics in Seoul, place of birth has played a primary role in determining whether or not households become a homeowner. Most strikingly, while most of the disparity in homeownership ratios between households from Youngnam and households from Gangwon in the housing market is due to the endowment differences in human capitals they bring to the market, those between households from Youngnam and households from Honam is largely due to residual differences explained mainly by social discrimination and prejudice against people from Honam. The present study summarized that place of birth has played a primary role in determining whether or not households become a homeowner in Korea. The present study concluded with some policy issues relevant to this study and suggested some future studies.

• Journal of Nutrition and Health
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• v.51 no.4
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• pp.295-306
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• 2018

Purpose: Koreans' internet and smartphone usage hours are steadily increasing and the dependence of young people on smartphones is causing social problems. Therefore, this study was conducted to examine health and dietary habits, as well as hair mineral contents according to the level of dependence of smartphone use among adolescents to clarify the interrelation of smartphone dependence, lifestyle, dietary behavior, and mineral nutrition status. Methods: A total of 80 smartphone-addicted adolescents participated in this study and were divided into three groups (general, potential and danger group) according to smartphone dependence. The subjects' lifestyles and dietary behaviors were then surveyed, and hair mineral contents were analyzed. Results: Higher smartphone dependence was associated with lower average weekly sleeping time and later first smoking age. In the danger group, the rate of eating fast and the rate of snacking twice a day was also relatively high. Parents (45.0%) and mobile (30.0%) were the factors having the greatest influence on an individual's dietary behavior. In the hair mineral analysis, all subjects had lower selenium concentrations and higher lead concentrations than normal. In addition, the levels of aluminum in the danger group were higher than in the normal range and the highest among the three groups. Conclusions: It is necessary to guide adolescents to use smartphones correctly and manage dietary habits. In addition, careful attention is needed the mineral nutritional status of smartphone-addicted adolescents.