• KSII Transactions on Internet and Information Systems (TIIS)
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• 제15권6호
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• pp.2240-2254
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• 2021

We investigate the channel allocation problem in an ultra-dense device-to-device (D2D) enabled cellular network in underlaying mode where multiple D2D users are forced to share the same channel. Two kinds of low complexity solutions, which just require partial channel state information (CSI) exchange, are devised to resolve the combinatorial optimization problem with the quality of service (QoS) guaranteeing. We begin by sorting the cellular users equipment (CUEs) links in sequence in a matric of interference tolerance for ensuring the SINR requirement. Moreover, the interference quota of CUEs is regarded as one kind of communication resource. Multiple D2D candidates compete for the interference quota to establish spectrum sharing links. Then base station calculates the occupation of interference quota by D2D users with partial CSI such as the interference channel gain of D2D users and the channel gain of D2D themselves, and carries out the channel allocation by setting different access priorities distribution. In this paper, we proposed two novel fast matching algorithms utilize partial information rather than global CSI exchanging, which reduce the computation complexity. Numerical results reveal that, our proposed algorithms achieve outstanding performance than the contrast algorithms including Hungarian algorithm in terms of throughput, fairness and access rate. Specifically, the performance of our proposed channel allocation algorithm is more superior in ultra-dense D2D scenarios.

• 수산해양교육연구
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• 제10권2호
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• pp.162-183
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• 1998

The fisheries resources control system in the Fisheries Act of Korea is introducing technical management method and input control method that controls fishing effort. Fishing effort control system of Korea aiming at realizing the maximum sustainable yield does not regulating the limitation of fishing quota and the limitation of fisheries object target fish. Therefore fishing operators who have fishing permit can use fishery resources without any restriction of fishing quota. But there are no rules that can controlling capacity of productivity of fishing by developing of fishing technic and fishing gear. For those reasons, productivity of fishing is superior to reproductivity of fisheries resources. Therefore, the Fisheries Act of Korea rearranges a legal basis for an introduction of fisheries resources management system by TAC, but the contents to be possible for a legal guarantee is not included and it is exceedingly defective as abstract and institutional devices. And that the affairs to be required for an enforcement of the said regime was placed in an administrative mandatory legislation and the danger to be degenerated is high in accordance with the bureaucratic self-righteous and/or the coercion of group's interest concerned and accordingly its substitute legislation system is keenly required. TAC system that is going to be introduced in our country is expected to enforce the Olympic fishing method and the individual quota method in parallel. This method is not certainly proper, because it occurs to overcapitalize and to compete fishing amounts between fishery operators. So as to prevent overcapitalization and fishing competition between fishery operators, and the exhaustion of coastal fisheries resources, individual transferable quota system should be introduced in Korean sea. Accordingly this thesis has attempted to constitute a view to improving problems of the traditional fisheries resources control system and introducing TAC fisheries resources control system.

• 자원ㆍ환경경제연구
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• 제17권4호
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• pp.775-812
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• 2008

본 연구는 양도성개별할당량(individual transferable quota:ITQ)제도하에서 어획량 보고 시스템과 관련된 뉴질랜드의 독특한(unique) 어획량균형제도(Catch Balancing Regime)인 추정가치(deemed value) 시스템의 시행전략에 관한 한 이론적 모델을 제시한다. 본 논문에서 제시된 시행전략모델은 현시원칙(revelation principle)과 유인합치성(incentive compatibility)이론에 근거한 이론적 실증 분석에 기초한다. 분석 결과, 뉴질랜드에서 시행되고 있는 추정가치 시스템은 ITQ 제도하에서 지금껏 규제의 사각지대로 여겨졌던 부수어획(bycatch)과 불법투기(discarding), 그리고 남획(overfishing)과 같은 난제들을 통제 조정할 수 있는 가치 있는 제도적 메커니즘을 가지고 있는 것으로 나타났다. 다시 말해, 분석된 추정가치 시스템에 의한 어획량균형제도의 시행은 우선, 쿼타 보유자들의 어획보고에 대한 규제순응(regulatory compliance)을 향상시키고, 둘째, 어업의 감시 감독(surveillance monitoring)에 대한 비용을 안정화시키며, 셋째, 어자원의 지속적 효율적 관리에 대한 긍정적 유인을 제공한다.

• 한국의상디자인학회지
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• 제21권4호
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• pp.181-194
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• 2019

The purpose of this study is to analyze the problems associated with the domestic fashion sewing industry and suggest solutions for re-development. The research methods are a content analysis of literature, including articles and reports, and interviewing practitioners who are in charge of the fashion industry. The problems of the domestic fashion sewing industry are as follows. 1. Weakness in price competitiveness and a lack of work. 2. Aging of workers and difficulty securing new workers. 3. The age of the production facilities and the lack of manpower required for mass production. 4. Unrealistically low cost of labor due to over-competition considering the lack of work.5. The prevalence of illegal label grinding. The solutions to the problems listed above are as follows. 1. Establishment of a win-win effort between fashion brands and sewing companies. 2. Allow systematic education, support, and development of a meister system for fostering sewing manpower. 3. Undertake efforts to improve the sewing work environment. 4. Establishment of the system for realizing the actual cost of labor. 5. Establishment of a quota system to secure domestic sewing production. 6. Construction of Smart DB to connect work orders. 7. Construction of a smart factory using technology such as automated systems of production suitable for the 4th Industrial Age. 8. Enforcement of specialized strategies to encourage fashion sewing companies, not only Seoul but also in other urban areas.

• 생태와환경
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• 제36권2호통권103호
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• pp.139-149
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• 2003

팔당호 식물플랑크톤의 제한영양염과 생리학적 성장 특성을 평가하기 위하여 2002년 3월부터 10일까지 팔당호의 수질환경 조사와 함께 실내 배양실험을 실시하였다. 총인의 농도와 Chl. a의 상관성 분석결과, 팔당호의 호수생산성은 인의 영향을 많이 받으며 TN/TP ratio와 식물플랑크톤의 성장잠재력 실험을 통해서도 제한영양염은 인으로 평가되었다. 특히, 봄철이 다른 계절에 비해 상대적으로 용존무기인이 낮은 농도로 존재하기 때문에 높은 인 제한을 받는 것으로 나타났다. 그러나 인의 제한정도는 계절적인 변이를 나타내었으며, 시기에 따라 질소와 규소에 의한 제한가능성도 나타났다. 팔당호 식물플랑크톤 군집의 최대성장률(${\mu}_{max}$)은 0.8${\sim}$l.1$day^1$의 범위로 나타났으며, 반포화농도($K_u$)는 0.1${\sim}$O.8${\mu}M$로 5월에 $0.8{\mu}M$로 가장 높고 9월에 $0.1{\mu}M$로 가장 낮은 것으로 조사되었다. 이는 영양염 흡수에 영향을 미치는 인의 cell quota와 관련이 있는 것으로 나타났으며, 5월에 $0.13{\mu}gP/{\mu}gChl.$ 3로 낮은 값을 나타냈다. 식물플랑크톤의 성장특성 분석을 통해 팔당호에서는 봄에 비해 여름과 가을철에 발생한 식물플랑크톤의 성장이 경쟁적으로 빠르게 발달할 수 있는 잠재성이 있는 것으로 판단된다. 결과적으로, 팔당호 식물플랑크톤 성장은 주로 인에 의하여 제한되며 여름 몬순 이후 수체의 안정기동안 높은 성장을 할 수 있는 생리적 특성을 가지고 있는 것으로 추정된다.

• 한국지능시스템학회논문지
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• 제16권2호
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• pp.172-178
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• 2006

본 논문에서는 시계열 예측을 이용한 법원경매 정보제공 시스템을 개발하였다. 이 시스템은 권리분석을 위하여 낙찰가를 예측하고, 낙찰예측가에 따라 배당 정보를 제공하도록 설계되어 있으며, 이를 구현하기 위하여 물건 자료의 입력 인터페이스와 정보 제공을 위한 웹 인터페이스를 구축하였다. 자료 입력 인터페이스는 자료의 입력, 수정, 삭제의 기능을 가지며, 웹 인터페이스는 법원경매 물건을 중심으로 관련 정보를 제공한다. 실시간 정보 제공에 초점을 두고 자동 권리분석이 가능하도록 하기 위하여 낙찰가를 시계열 자료로 표현하여 낙찰예상가를 예측 방법을 제안하고, 기존의 방법과 비교 실험을 통하여 제안방법의 유효성을 검증한다.

• 한국병원경영학회지
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• 제7권1호
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• pp.121-130
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• 2002

As a hospital deals with people in their particular states, namely patients, computerization and automation in organization systems are very limited. Even though state-of-the-art medical systems such as the OCS, the HIS, the EMR, and the FACS are facilitating the computerization and informatization processes, they are for convenience and effectiveness. Ultimately, however, we should depend on specialists including doctors, nurses, pharmacists, and medical engineers. Therefore, a hospital is a representative labor-intensive body. Like other similar organizations, hospitals require a lot of manpower. But they are quite different in that hospital people hold variety and complexity in their qualifications and licenses. In personnel management, a hospital is twice controlled owing to the special characteristics that human life is at stake. First, the quota of medical manpower should be obeyed lest the quality of medical services should be lowered, and their roles and interrelations are even regulated. Second, in spite of the peculiarity of hospitals, the duties of obligatory employment and social insurances should not be neglected like other companies. In order that each hospital can preserve the proper level of medical services, securing the appropriate level of medical personnel has to be regulated. However, as the personnel cost is one of the important indices of hospital management, too much regulation in manpower supply can lead to poor hospital management and, in the end, the drop of the quality of medical services. In sum, as far as hospital personnel is concerned, some autonomy ought to be given to each hospital so that it can control the quality of hospital services. In addition to this minimum regulation of personnel, certain incentive and reward systems like the graded nursing system need to be prepared.

• 대한수의학회지
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• 제48권1호
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• pp.105-110
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• 2008

The purpose of this study is to define the normal findings of cerebrospinal fluid (CSF) of the clinically healthy Beagle dogs and to provide basic information in diagnosis of neurologic disorders. CSF obtained from 13 clinically healthy dogs was examined for total and differential cell counts, total protein concentration, glucose and lactate dehydrogenase (LDH) concentration, specific gravity, turbidity, and protein electrophoresis. On gross examination, CSF samples evaluated were clear and colorless. Few red blood cells and nucleated cells were present. The mean concentration of glucose and LDH examined were 65.8 mg/dl and 2.7 mg/dl, respectively. The cellular components of CSF samples based on differential counts were monocytes (41.9%), activated macrophages (35.8%), lymphocytes (20.0%), neutrophils (1.6%), and eosinophils (0.7%). The fractions of electrophoretic protein in CSF were albumin (52.7%), alpha-globulin (16.5%), beta-globulin (24.8%), and gamma-globulin (3.0%). Results of albumin quota were ranged from 0.15 to 0.38. In conclusion, this study provided normal composition of CSF in Beagle dogs.

• 무역상무연구
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• 제13권
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• pp.735-765
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• 2000

The paper aims to introduce and to discuss seafood import systems in terms of tariff and Non-Tariff Measurements which have been changed by the establishment of WTO. The paper can be used as materials for seafood trade policy making. The Non-Tariff Measurements for seafood import control in Japan are explored as follows; Import Quota, Import License, Pre-identification, Standard system, Customs Clearance Procedure, Import Port Nomination, Import Channel, Unification. The paper is composed of six chapters. Chapter 1 shows the current situation of seafood trade of major countries and background of the research. Chapter 2 deals with fisheries negotiations in the Uruguay Round, their impacts and major issues of tariffs and Non-Tariff Measurements in seafood trade. Chapter 3 analyzes seafood import of Japan, which is the core nation in the seafood trade of Northeast Asian Region, by item and the structure and characteristics of Japanese seafood import tariff including Non-Tariff Measurements. Chapter 4 and chapter 5 tackle seafood import management system of EU and USA respectively. Chapter 6 summarizes the issues of seafood import by focusing on Japan which is the biggest import market of Korean seafood.

• 한국컴퓨터정보학회논문지
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• 제22권7호
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• pp.101-108
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• 2017

A wireless image sensor node collecting image data for environmental monitoring or surveillance requires a large amount of energy to transmit the huge amount of video data. Even though solar energy can be used to overcome the energy constraint, since the collected energy is also limited, an efficient energy management scheme for transmitting a large amount of video data is needed. In this paper, we propose a method to reduce the number of blackout nodes and increase the amount of gathered data by selecting an appropriate video coding method according to the energy condition of the node in a solar-powered wireless video sensor network. This scheme allocates the amount of energy that can be used over time in order to seamlessly collect data regardless of night or day, and selects a high compression coding method when the allocated energy is large and a low compression coding when the quota is low. Thereby, it reduces the blackout of the relay node and increases the amount of data obtained at the sink node by allowing the data to be transmitted continuously. Also, if the energy is lower than operating normaly, the frame rate is adjusted to prevent the energy exhaustion of nodes. Simulation results show that the proposed scheme suppresses the energy exhaustion of the relay node and collects more data than other schemes.