• Title/Summary/Keyword: competition periods

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Environment R&D Incentives with Emission Banking and Borrowing in a Cournot Model (쿠르노 경쟁하의 배출권 이월 및 차입과 감축기술개발투자)

  • Jeong, Kyonghwa;Shim, Sunghee
    • Journal of Environmental Policy
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    • v.14 no.4
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    • pp.63-101
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    • 2015
  • Banking and borrowing under the ETS may affect the low carbon technology investment level. If the indirect implementation measures are allowed, firms can gradually adjust their carbon reduction costs between implementation periods based on their carbon reduction costs and emission price forecasts. This implies that banking and borrowing may reduce or increase the level of low carbon technology R&D investment. In an oligopoly market, the effects of the measures are quite different from the ones in a perfectly competitive market. This is because the indirect implementation measures can shift market competition in Cournot competition model. The effects of banking and borrowing on the carbon reduction R&D investments depend on emission reduction costs, marginal production costs, discount rate, initial free allocation, and the cost reduction effects of R&D investment.

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Dynamic Responses of Electrorheological Fluid in Steady Pressure Flow (정상압력 유동 하에서 전기유변유체의 동적 응답)

  • Nam, Yun-Joo;Park, Myeong-Kwan
    • Proceedings of the KSME Conference
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    • 2007.05b
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    • pp.2879-2884
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    • 2007
  • Dynamic responses of electrorheological (ER) fluids in steady pressure flow to stepwise electric field excitations are investigated experimentally. The transient periods under various applied electric fields and flow velocities were determined from the pressure behavior of the ER fluid in the flow channel with two parallel-plate electrodes. The pressure response times were exponentially decreased with the increase of the flow velocity, but increased with the increase of the applied electric field strength. In order to investigate the cluster structure formation of the ER particles, it was verified using the flow visualization technique that the transient response of ER fluids in the flow mode is assigned to the densification process in the competition of the electric field-induced particle attractive interaction forces and the hydrodynamic forces, unlike that in the shear mode determined by the aggregation process.

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A Study on the National GIS (NGIS I) Project in Korea

  • Oh, Jong-Woo
    • 한국디지털정책학회:학술대회논문집
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    • 2004.11a
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    • pp.449-453
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    • 2004
  • GIS can be used on almost entire fields of the world, such as the national land management, environmental management, disaster management, enterprise activities, and general lives. GIS is called as an infrastructure of the knowledge information on the cultural society. For insuring the national power on the periods of the unlimited competition, it is very important to establish the national information infrastructure. Purpose of the NGIS project I is to development on living benefits of peoplethrough an efficiency of policy and rationalism of planning. In order to achievement of this purpose, the NGIS project I has been established using the national geographic information base planning. The NGIS project I consists of the master management part, the geographic information part, the technique development part, the standardization part, and the land Information part. These five GIS project parts are operated by four governmental ministers and related institutions, such as minister of transportation and construction, minister of science and technology, minister of information and communication, minister of administrative and home affaires. The NGIS I project is to establishment of the nation spatial information systems, such as various nationwide digital maps, GIS technique development, GIS education, GIS standardization, and GIS researches.

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Product Liability Prevention Policies through the Improvement of Product Safety and Reliability (제품안전 및 신뢰성 향상을 통한 제조물책임 예방대책)

  • Kim, Jin-Kyu
    • IE interfaces
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    • v.15 no.3
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    • pp.270-278
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    • 2002
  • Product Liability(PL) is a legal policy to deal with global competition by improving domestic industrial competitive power and to reduce the cost of defect products. The purpose of this paper is to address the state of the art solutions to dispute on PL, in reality of a frequent occurrence of global product exchange focussing on product safety that is one of the most important functions of PL and to improve solution of the product safety and reliability responsive to PL. To minimize PL exposure, manufacturers should reflect comprehensive product safety and reliability concepts in establishing PL prevention policies. Total PL prevention policies are composed of total quality management and product safety management system in respect of safety design, risk, and reliability. These PL prevention activities should be performed consistently during the total product life cycle, especially product research and development periods.

An Empirical Study on Consumers' Perceptions on the Changes of Marketing Environment (마케팅환경변화에 대하여 소비자의 인식패턴에 관한 실증적 연구)

  • 최윤홍
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.19 no.40
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    • pp.37-52
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    • 1996
  • Nowadays the marketing environment has become an important factor which should be seriously considered by all the managers of modern firms. The survivals of modern firms are basically influenced by the changes of marketing environment. Particularly, it is necessary for firms to pursue the rational and efficient managerial activities since the recent environment is characterized by the stiff competition and rapid changes. First of all, this paper is trying to theoretically examine how the environment of the marketing system has been changing in terms of different periods and macro-levels. Secondly, in order to understand the patterns of consumers' perceptions on the environmental changes, some hypotheses have been established and relevant data have been collected. And, in order to analyse the results of this study, the followings have been implemented : Pilot analyses on the experimental environment and variables, the selection of research methodology, the test hypotheses, and the summary of the results. Finally, some practical implications have been suggested in order to help marketing managers formulate the efficient marketing strategic.

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Competitive Performance of Hybrid Rice with Barnyardgrass

  • Lin, Wenxiong;Kim, Hak-Yoon;Shin, Dong-Hyun;Lee, In-Jung;Kim, Kil-Ung
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.44 no.4
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    • pp.391-395
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    • 1999
  • Barnyardgrass had relatively higher growth vigor at the earlier growth stage than inbred rice did, showing the 2 fold higher $\alpha$-amylase activity during the periods of germination and large leaf area Expansion with high net photosynthetic rate at the earlier autotrophic stage, but it performed weak growth at the late growth stage. However, the hlybrid rice Shanyou 63 had significantly higher $\alpha$-amylase activity and net photosynthetic rate than that of barnyardgrass, exhibiting heterosis for two physiologica1 traits during the germination (6~12 days) and autotrophic phase, respectively. Accordingly, hybrid rice, Shanyou 63, exhibited heterotic effect at the early growing stage when were presented with barnyardgrass. Shanyou 63 exhibited stronger tillering ability, faster leaf area expansion and higher net photosynthetic rate than those of barnyardgrass.

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A Study on the Strategic Competition Model of Pumped Storage Plant (양수발전기의 전략적 시장참여에 대한 해석 모형 연구)

  • Lee, Kwang-Ho
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.56 no.10
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    • pp.1738-1743
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    • 2007
  • This paper addresses the bidding strategies of a pumped-storage hydro plant in an electricity market. Competitive bidding of pumping and generating of a pumped-storage plant is formulated in a game theoretic problem in accordance with the three different ownership of scheduling; Market Operator(MO), generating company(Genco), and combined type of MO and Genco. Optimal conditions for Nash Equilibrium are derived in the form of market prices during the scheduling periods. Simulation results show the different ownership models produce different schedules of pumping and generating, which correspond to the objective of the scheduling owner of a pumped-storage hydro plant.

Exploring the Selective Properties of buyer of Taekwon gymnastics for competition (대회용 태권체조 구매자의 선택속성 탐색)

  • Cho, Hee-Joo;Kim, Il-Gwang
    • Journal of Digital Convergence
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    • v.19 no.4
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    • pp.355-363
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    • 2021
  • The purpose of this research is to explore the selection attributes that the director of a taekwondo gym places importance on when purchasing a work of taekwon gymnastics for the competition. We conducted in-depth interviews with 6 participants using qualitative case study techniques, and analyzed data using Creswell's (2015) spiral analysis method. The data analysis results show music, trainees, characteristics of the work, criteria for evaluating the competition, producer competence, and price factors. As a result of the research, music should be produced around diverse and differentiated genres and music preferred by the trainees, and the appropriate theme should be selected considering the expressiveness and level of the trainees. The work should be considered creative works that harmonize the movement ratio of Taekwondo movements and dance, and the length of the work should be adjusted according to the purpose of the buyer, and the construction of the work should be based on the regulations of the competition. The manufacturer should ensure smooth communication with the buyer, including coaching ability and experience at the convention site. Prices will be affordable and affordable, and prices will need to be calculated based on special prices or mentoring periods for a small number of buyers.

Determining Subsidies for Banks in Policy Loans to Innovative SMEs (혁신형 중소기업 정책금융에 대한 금융기관 지원금 결정모형)

  • Kim, Sung-Hwan;Seol, Byung-Moon
    • Journal of the Korean Operations Research and Management Science Society
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    • v.34 no.2
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    • pp.1-13
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    • 2009
  • In this paper, we develop theoretical game models to determine the level of government subsidies for banks to provide policy loans to Innovative SMEs(small and medium sized enterprises) through banks, which otherwise would not finance them for the sake of their own profitability. For this, we compare net cash flows of each bank using different strategies against high risk innovative SMEs. A bank can decide whether to provide them loans or not In each period. Following Kim(2003)'s Infinite horizon model on the soft budget constraint, we introduce a situation in which banks compete against each other for higher net long-term payoffs from their loans to innovative SMEs and non-innovative SMEs. From the models, we show that competition among banks in general leads to a tighter decision against innovative SMEs, as a Nash equilibrium. It is not because the government bank is simply loose in providing loans, but because competition among commercial banks for fewer riskier borrowers results in tighter loan decisions against innovative SMEs. Thus, the competitive market for policy loans to innovative SMEs fails to reach the socially optimal level of loans for innovative SMMs. Commercial banks in the competitive market may require additional supports from the government to make up for the differences in their payoffs to support innovative SMEs, possibly much riskier due to moral hazards and poor discounted cash flows. The monopolistic government bank might also request such supports from the government to fund otherwise unqualified SMEs. We calculate an optimal level of governmental support for banks to guarantee funding such high-risk innovative SMEs over periods without deviating from their optimal Nash equilibrium policies.

Effect of Sulfate and Heavy Metals on Methanogenic Activation of in the Anaerobic Digestion of Tannery Wastes (피혁폐수의 혐기성 소화시 황산염과 중금속이 메탄균 활성에 미치는 영향)

  • Shin, Hang Sik;Oh, Sae Eun
    • Journal of the Korea Organic Resources Recycling Association
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    • v.4 no.1
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    • pp.13-21
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    • 1996
  • For treating tannery wastewater containing high sulfate and heavy metals, test was performed to assess their performance, competition between SRB (sulfate reducing bacteria) and MPB (methane producing bacteria), and the activity of MPB according to change of chromium concentrations. COD removal efficiency was above 70% at VLR (volumetric loading rate) of 2.0 gCOD/I.day and HRT (hydraulic retention time) of 18hrs at $35^{\circ}C$. In the competition between SRB and MPB, about 15% of the removed COD was utilized by SRB in the begining, but it became 43% at the end. It indicated that MPB was strongly suppressed by the occurrence of significant sulfate reduction since a large electron flow was uptaken by SRB. For the entire experiment, removal efficiencies of chromium concentration were more than 90%. Despite high removal efficiencies of chromium concentration, performance of reactor did not change significantly during the experimental periods. Expecially, chromium (III) is tannery wastewater is less toxic than chromium (VI).

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