• 국제지역연구
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• 제14권1호
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• pp.3-29
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• 2010

본 논문의 목적은 해외에서 발생하는 화폐교란과 실물교란이 중간재를 수입하는 소국경제에 어떤 영향을 미치는지 알아보고, 또한 소국에서의 물가상승에 대한 명목임금연동정도가 해외경제교란이 소국경제에 전파되는 과정에 어떤 영향을 미치는지 알아보는데 있다. 이를 위해 본 논문에서는 변동환율제 하에서 자본이동이 완전하며, 합리적 기대가정 하에서 2국 2재화 모형을 채택하였다. 본 논문의 분석결과에 의하면 해외에서 발생하는 화폐교란과 실물교란은 가격효과, 해외승수효과, 자본이동을 통한 이자효과, 물가와 환율변동에 의한 상대가격효과, 그리고 실질잔고효과를 통하여 소국경제에 영향을 미치는 것으로 나타났다. 본 논문에서는 한국과 미국의 통계자료를 사용하여 실증분석을 하였다. 이를 통해 미국에서 발생하는 화폐교란과 실물교란이 한국경제에 어떤 영향을 미치는지, 그리고 한국에서의 임금연동지수가 미국에서 발생하는 경제교란이 한국경제에 전파되는 과정에 어떤 영향을 미치는지 알아보았다.

• 마케팅과학연구
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• 제13권
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• pp.183-208
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• 2004

최근 영세한 국내 의약품 유통시장을 근대화하고 유통질서 확립을 위해 도매상 기능의 강화와 도매상과 약국간 협력체계 확립의 중요성에 대한 정부와 업계의 관심이 높아지고 있다 본 연구는 의약품 유통경로에서의 도매상과 소매상간 관계특성 변수들을 파악하고 이들 변수들과 협력간 관계를 실증분석 하였다. 기존 연구와 이론적 배경을 토대로 의약품 유통경로에서의 관계특성 변수들로 관계주의, 보상적 힘, 신뢰, 의존을 선정하고 이들 변수들과 협력과 만족간 관계를 살펴보았다. 연구결과, 보상적 힘을 제외한 관계특성 변수들은 협력에 유의한 영향을 미치는 것으로 나타났으며, 협력은 만족에 유의한 영향을 미치는 것으로 나타났다. 이러한 연구결과를 토대로 의약품 유통경로에서 도매상과 중소형 약국간 협력관계를 강화시킬수 있는 방안들을 제시하였다.

• 해양환경안전학회지
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• 제2권1호
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• pp.11-33
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• 1996

This work aims at examining the navigational safety of the entrance channel of Inchon harbour and suggesting the way to improve ship's navigation of the navigational safety at Inchon, that small ships such as fishing boats and barges coming out of the harbour through the East Channel cause major threat to the inbound large ships using the channel. An additional new waterway, therefore, has been recommended to be established in the middle of the East and West Channels so that the outbound small ships can use it. A waterway design simulation methodology has been applied to examin the sagety of the newly suggested channel. Minor chansge has been made to the original design after the simulation experiment, and the corrected final design of the waterway has been suggested to be implemented as soon as possible.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.39-40
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• 2006

This paper modeled UWB system transmission channel in indoor environment. For channel modeling, we extracted transmission channel parameter, and then measured from 10MHz to 16.01GHz by using method of CIR(Channel Impulse Response) and CTF(Channel Transfer Function) in small room($5.5{\times}5.5m^2$) environment.

• 한국추진공학회:학술대회논문집
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• 한국추진공학회 2005년도 제24회 춘계학술대회논문집
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• pp.134-138
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• 2005

재생냉각형 액체로켓 연소기 챔버의 냉각 채널부의 상온상태의 구조설계와 검증시험을 수행하였다. 재생냉각 연소기 냉각 채널부에 사용하는 크롬동 합금의 상온 인장시험을 수행하여 재료의 탄소성 물성치를 확보하였으며 냉각 채널의 탄소성해석은 이 물성치를 이용하여 수행하였다. 해석결과의 검증을 위해서 평판형태의 냉각채널 시편을 제작하여 강도시험을 수행하였다. 탄소성 구조해석과 결과와 시편의 수압시험 데이터를 비교한 결과 구조해석과 시험이 약간의 차이는 있지만 비교적 잘 일치하였으며 채널의 단면 두께가 작기 때문에 제작상의 가공오차가 채널의 구조적인 안정성에 큰 영향을 미치는 것을 확인하였다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권2호
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• pp.611-627
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• 2017

For enhancing the coverage of wireless networks and increasing the spectrum efficiency, small cell networks (SCNs) are considered to be one of the most prospective schemes. Most of the existing literature on resource allocation among non-cooperative small cell base stations (SBSs) has widely drawn close attention and there are only a small number of the cooperative ideas in SCNs. Based on the motivation, we further investigate the cooperative approach, which is formulated as a coalition formation game with power control algorithm (CFG-PC). First, we formulate the downlink sub-channel resource allocation problem in an SCN as a coalition formation game. Pareto order and utilitarian order are applied to form coalitions respectively. Second, to achieve more availability and efficiency power assignment, we expand and solve the power control using particle swarm optimization (PSO). Finally, with our proposed algorithm, each SBS can cooperatively work and eventually converge to a stable SBS partition. As far as the transmit rate of per SBS and the system rate are concerned respectively, simulation results indicate that our proposed CFG-PC has a significant advantage, relative to a classical coalition formation algorithm and the non-cooperative case.

• Asia pacific journal of information systems
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• 제12권2호
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• pp.25-44
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• 2002

The internet-based electronic commerce is considered as a new strategic alternative to boost competitiveness for small and medium-sized enterprises(SMEs). However, very little research about them has been reported. Meanwhile, the cyber shopping shops in Korea are growing rapidly in their numbers, scales, and diversity of business models. The primary purpose of this study is to investigate the factors influencing outsourcing decisions in the implementation of small and medium-sized cyber shopping shops. Based on the previous studies on IS outsourcing, marketing channel, and their related theories, three areas of determinants(IT & organizational, product, marketing channel characteristics) were identified. Responses of 125 cyber shopping shops from e-mail survey indicate that IT capability, technical specificity of shop implementation, degree of product customization, average amount of order, marketing capability are negatively associated with outsourcing of cyber shopping shop implementation. The results also indicate that the outsourcing decision on systems implementation and marketing channel selection(direct/indirect selling) is performed separately.

• ETRI Journal
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• 제34권3호
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• pp.319-329
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• 2012

Closed-loop transmit diversity is considered an important technique for improving the link budget in the third generation and future wireless communication standards. This paper proposes several transmit diversity algorithms suitable for small wireless terminals and presents performance assessment in terms of average signal-to-noise ratio (SNR) and outage improvement, convergence, and complexity of operations. The algorithms presented herein are verified using data from measured indoor channels with variable antenna spacing and the results explained using measured radiation patterns for a two-element array. It is shown that for a two-element array, the best among the proposed techniques provides SNR improvement of about 3 dB in a tightly spaced array (inter-element spacing of 0.1 wavelength at 2 GHz) typical of small wireless devices. Additionally, these techniques are shown to perform significantly better than a single antenna device in an indoor channel considering realistic values of latency and propagation errors.

• 한국광학회:학술대회논문집
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• 한국광학회 2000년도 하계학술발표회
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• pp.162-163
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• 2000

We have observed the short-channel effect, narrow-channel effect and small-geometry effect in terms of a variation of the threshold voltage. For a short-channel effect the threshold voltage was largely determined by the DIBL effect which stimulates more carrier injection in the channel by reducing the potential barrier between the source and channel. The effect becomes more significant for a shorter-channel device. However, the potential, field and current density distributions in the channel along the transverse direction showed a better uniformity for shorter-channel devices under the same voltage conditions. The uniformity of the current density distribution near the drain on the potential minimum point becomes worse with increasing the drain voltage due to the enhanced DIBL effect. This means that considerations for channel-width effect should be given due to the variation of the channel distributions for short-channel devices. For CCDs which are always operated at a pinch-off state the channel uniformity thus becomes significant since they often use a device structure with a channel length of > 4 ${\mu}{\textrm}{m}$ and a very high drain (or diffusion) voltage. (omitted)

• 전자공학회논문지D
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• 제35D권4호
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• pp.78-83
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• 1998

A small size cartrideg for FET type electrolyte sensor is designed and faricated with much simplified process by using micromachining tenchiques such as silicon etching andglass bonding. Size of the whole cartideg is 2.4cm*2.5cm, and the dead volume of a micro flow-channel in the cartrideg is only 8.5.mu.l. The photosensitive polymer(THB 30) is used to define a micropool and to encapsulate the sensor surface for standardizationof electrolyte sensors. To miniaturize micro flow-channel conventional reference electrode(Ag/AgCl) a differential amplification is introduced using REFET and quasi reference electrode. Refet was fabricated using photosensitive polymer(OMR 83). The fabricated cartridge with built-in pH-ISFET showed good operational characteristics such as linearity and high sensitivity (55.4mV/pH) in a wide pH range(pH2-pH12).