• 제목/요약/키워드: alternative strategy

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도시발전 전략에 있어 정체성 형성과 공적 공간의 구축에 관한 비판적 성찰 (A Critical Reflection on Formation of Regional Identity and Construction of Public Space in Urban Development Strategy)

  • 최병두
    • 한국지역지리학회지
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    • 제14권5호
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    • pp.604-626
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    • 2008
  • 최근 도시발전 전략으로 정체성의 형성이 강조되고 있다. 이는 한편으로 인간의 존재론적 안전감을 위해 상실된 전통적 정체성의 규범적 복원, 다른 한편으로 도시들 간 경쟁에서 우위를 점하기 위한 도시 이미지의 전략적 제고라는 이중성을 가진다. 이러한 이중성은 근대적 정체성에 대한 포스트모던 이론가들(라캉, 푸코, 들뢰즈 등)의 비판과 이에 대한 대안으로 공적 공간을 통한 정체성을 강조하는 아렌트나 하버마스의 논쟁 속에 반영되어 있다. 이 논문은 정체성 개념이 담고 있는 도시 정책적 함의를 고찰하는 한편, 이 개념이 실제 정체성 고양을 명분으로 한 도시 발전 전략에서 어떻게 왜곡되게 원용되고 있는가를 비판하고자 한다. 특히 이 논문은 포스트모던 이론가들의 입장을 현실의 의사적 정체성에 대한 비판과 관련시키는 한편, 공적 공간을 통한 진정한 정체성의 형성을 강조하는 비판이론가들의 주장을 도시발전 정책의 규범적 대안으로 이해하고자 한다.

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공급사슬관리의 예측전략과 지연전략 선택을 위한 프로파일링 접근법 (Profiling Approach for the Choice between Speculation and Postponement Strategy in Supply Chain Management)

  • 강성욱;김규배
    • 유통과학연구
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    • 제12권4호
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    • pp.47-54
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    • 2014
  • Purpose - The postponement strategy, which delays the form, place, and production of products as late as possible, has been widely considered as a competitive supply chain management scheme in an era of mass customization and modular manufacturing. An interesting business phenomenon is that not all manufacturing/logistics firms choose the postponement strategy. Given that postponement is a counter-measure to speculation, which has some advantages under certain environments, the current imprudent inclination toward the postponement strategy may cause firms to lose the potential of the speculation strategy, an alternative strategy in supply chain management. Building on the logistics and manufacturing literature, this study examines characteristics of two contrasting strategies, postponement and speculation, and major factors favoring each strategy. Research design, data, and methodology - We apply the profiling approach to two business cases, HP printer and LG mobile phone. The profiling approach is a method of choosing a particular strategy aligned with environmental factors. While various approaches have been used to check the fit between a business strategy and environmental factors, the literature on manufacturing strategy and logistics has commonly adopted the profiling approach. Major factors used in profiling variables are derived from the literature. Two samples, HP printer and LG mobile phone, are selected, because they represent major characteristics appropriate for each strategy. The profiling is based on data from semi-organized interviews with managers. Results - The profiling approach shows that the postponement strategy is a suitable one for HP printers. Most factors, such as product life cycle, large production volume, low-price, product value, and monetary density, support delaying end products until as late as possible. Despite some exceptions, such as delivery time and economy of scale, our analysis states that the overall profile of HP printer is favorable for the postponement strategy. On the other hand, LG mobile phone may adapt the speculation strategy. Although it has large production volume and low delivery frequency, most characteristics support the speculation strategy for this product. An interesting finding is that, despite common perception that advanced technology products such as mobile telephones favor the postponement strategy, profiling proposes the speculation strategy for this product. Conclusions - Our analysis shows that speculation is not the universal option for supply chain management, and that, when choosing a specific strategy, one should consider many factors simultaneously. A major implication of our work is to emphasize the role of environmental factors such as supply chain variables in choosing an inventory strategy, and the importance of fit rather than solely strategic orientation. A theoretical contribution is to demonstrate the benefit of the simultaneous consideration of business variables in choosing specific strategies. For practitioners, our work leads us to consider the existence and the potential of speculation as a counter-measure to postponement. In addition, the comprehensive framework in this research may be instantly used in examining a practical strategy.

Effect of Sodium-Alternative Curing Salts on Physicochemical Properties during Salami Manufacture

  • Yim, Dong-Gyun;Shin, Dong-Jin;Jo, Cheorun;Nam, Ki-Chang
    • 한국축산식품학회지
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    • 제40권6호
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    • pp.946-956
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    • 2020
  • To identify the effect of sodium-alternative curing salts on the quality properties of salami through the ripening process, four salami treatments were prepared with different curing salts, T1 (-control, NaCl 1.9%), T2 (+control, NaCl 1.9%+NaNO2 0.01%), T3 (KCl 1.9%+NaNO2 0.01%), and T4 (MgCl2 1.9%+NaNO2 0.01%), under 40 days ripening conditions. Sodium-alternative salts (T3 or T4) showed characteristically different quality traits compared with T2. Especially, T3 had lower pH, water activity, volatile basic nitrogen, and lipid oxidation after 20 days of ripening period, compare with T2 or T4 (p<0.05). Sodium nitrite had critical impact on increased a* values, and T3 showed higher a* values compared with T2 or T4 (p<0.05). Sodium nitrite reduced initial growth of coliforms but sodium-alternative salts did not affect microbial growth patterns. T2-T4 containing sodium nitrite had higher content of umami nucleotide flavor compounds compared with T1, regardless of the chlorine salt species. The combined use of sodium-alternative curing salts and minimal sodium nitrite was found to be an applicable strategy on development of low sodium salami without a trade-off of the product quality.

A Smooth LVRT Control Strategy for Single-Phase Two-Stage Grid-Connected PV Inverters

  • Xiao, Furong;Dong, Lei;Khahro, Shahnawaz Farhan;Huang, Xiaojiang;Liao, Xiaozhong
    • Journal of Power Electronics
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    • 제15권3호
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    • pp.806-818
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    • 2015
  • Based on the inherent relationship between dc-bus voltage and grid feeding active power, two dc-bus voltage regulators with different references are adopted for a grid-connected PV inverter operating in both normal grid voltage mode and low grid voltage mode. In the proposed scheme, an additional dc-bus voltage regulator paralleled with maximum power point tracking controller is used to guarantee the reliability of the low voltage ride-through (LVRT) of the inverter. Unlike conventional LVRT strategies, the proposed strategy does not require detecting grid voltage sag fault in terms of realizing LVRT. Moreover, the developed method does not have switching operations. The proposed technique can also enhance the stability of a power system in case of varying environmental conditions during a low grid voltage period. The operation principle of the presented LVRT control strategy is presented in detail, together with the design guidelines for the key parameters. Finally, a 3 kW prototype is built to validate the feasibility of the proposed LVRT strategy.

DEVELOPMENT OF AN OPERATION STRATEGY FOR A HYBRID SAFETY INJECTION TANK WITH AN ACTIVE SYSTEM

  • JEON, IN SEOP;KANG, HYUN GOOK
    • Nuclear Engineering and Technology
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    • 제47권4호
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    • pp.443-453
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    • 2015
  • A hybrid safety injection tank (H-SIT) can enhance the capability of an advanced power reactor plus (APR+) during a station black out (SBO) that is accompanied by a severe accident. It may a useful alternative to an electric motor. The operations strategy of the H-SIT has to be investigated to achieve maximum utilization of its function. In this study, the master logic diagram (i.e., an analysis for identifying the differences between an H-SIT and a safety injection pump) and an accident case classification were used to determine the parameters of the H-SIT operation. The conditions that require the use of an H-SIT were determined using a decision-making process. The proper timing for using an H-SIT was also analyzed by using the Multi-dimensional Analysis of Reactor Safety (MARS) 1.3 code (Korea Atomic Energy Research Institute, Daejeon, South Korea). The operation strategy analysis indicates that a H-SIT can mitigate five types of failure: (1) failure of the safety injection pump, (2) failure of the passive auxiliary feedwater system, (3) failure of the depressurization system, (4) failure of the shutdown cooling pump (SCP), and (5) failure of the recirculation system. The results of the MARS code demonstrate that the time allowed for recovery can be extended when using an H-SIT, compared with the same situation in which an H-SIT is not used. Based on the results, the use of an H-SIT is recommended, especially after the pilot-operated safety relief valve (POSRV) is opened.

학대받은 아동과 일반 아동의 정서지능과 정서조절 비교연구 (Comparative Study of Abused Children and General Children's Emotional Intelligence and Emotion Regulation)

  • 최지경;한유진
    • 가정과삶의질연구
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    • 제31권3호
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    • pp.49-62
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    • 2013
  • The purpose of this study was to investigate the emotional ability between abused children and general children by comparing their emotional intelligence and emotional control. Participants were 17 abused children who had been separated from their abusers and 17 general children, all elementary school students. The answers to the questionnaire items on emotional intelligence and situations of emotional motivation were analyzed by Mann-Whitney U as a study tool. The results of this study were as follows: First, the difference of emotional intelligence between abused children and general children was statistically significant. Abused children received lower scores than general children when it came to their emotional recognition, emotional expression, empathy, and emotional regulation as a subordinate scope of emotional intelligence. Second, the difference of emotional regulation strategy between abused children and general children was statistically significant. Abused children presented negative responses and less frequently used positive strategy, inhibitory avoidance strategy and alternative strategy than general children. Third, the difference of emotional regulation motivation between abused children and general children was statistically significant. Abused children presented less prosocial motivation, motivation of self-preservation and normative motivation than general children.

2023 IMO 온실가스 전략이 국제해운에 미치는 포괄적 영향에 대한 고찰 (A Study on the Comprehensive Impact of the 2023 IMO GHG Strategy on International Shipping)

  • 이정윤;황대중;김민규
    • 대한조선학회논문집
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    • 제60권6호
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    • pp.397-405
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    • 2023
  • As interest in greenhouse gas reduction has increased in all sectors, the discussion of the International Maritime Organization (IMO) to regulate pollution by ships is attracting attention in international shipping. At the 80th IMO MEPC held in July 2023, the 「2023 IMO Strategy for the Reduction of Green House Gases from Ships (MEPC. 377(80))」 was adopted, which included the net-zero target around 2050, and a firm intention to the decarbonization of the international shipping sector showed. In particular, energy, fuel and technology targets for zero or near-zero greenhouse gas emissions by 2030 were added as new targets, and total greenhouse gas emission checkpoints for 2030 and 2040 were added as an indicator for achieving the 2050 target. The IMO's goal setting for 2030, which is about seven years away, will impose a lot of technical, economic, and political burden despite the decarbonization technology of international shipping, which has grown to a significant level in a short period of time. Accordingly, this paper presents the comprehensive impact of the 2023 IMO GHG Strategy on international shipping.

디지털 제조기술 기반의 차체 사이드패널 조립시스템 구현 (Implementation of an Assembly System for Automobile Side Panel Based on Digital Manufacturing Technologies)

  • 박홍석;최흥원
    • 한국정밀공학회지
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    • 제23권11호
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    • pp.68-77
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    • 2006
  • Nowadays, the increasing global competition forces automobile manufacturer to increase quality and to reduce the cost and time for manufacturing planning. To solve these problems, automobile manufacturers try to apply digital manufacturing technologies. In this paper, a concept of method for planning the digital assembly system is proposed. Based on the requirements of assembly tasks obtained through product analysis, the function and sequence modeling for assembly process is executed using the IDEF0 and UML model. For implementation of digital assembly system, the selected components are modeled by using 3D CAD tools. According to the system configuration strategy, lots of the alternative solutions for the assembly system are generated. Finally, the optimal assembly system is chosen by the evaluation of the alternative solutions with TOPSIS(Technique for Order Preference by Similarity to Ideal Solution) method. According to proposed procedure, digital laser welding system is implemented in DELMIA.

수자원 수질 종합관리를 위한 ADSS 개발 전략 (Starategy for Advanced Decision Supprot System Development for Integrated Management of Water Resources and Quality)

  • 심순보
    • 한국수자원학회:학술대회논문집
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    • 한국수자원학회 1992년도 수공학연구발표회논문집
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    • pp.443-447
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    • 1992
  • This study describes the strategy for advanced decision support system (ADSS) development for integrated management of water resources and quality in reservoir systems. The developed ADSS consists of database that contain hydrologic data, observed operational data, and data to support specific reservoir operations simulation, optimization models, and water quality models. The optimization model, mass balance simulation model and water quality models are used in a general prototype ADSS, menu driven controlling framework that assists the user to specify and evaluate the alternative operational scenarios at one time. These alternative scenarios are evaluated by the models and the results are compared through the use of a graphical based display system. This graphical based system uses an icon based schematic representation of the system to organize the presentation of the results. The ADSS includes the ability to use monthly or weekly time periods of analysis for the models and it can use monthly historical or stochastically generated inflows.

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조립공정에서의 Pull-Push 제조전략 (Pull-Push Manufacturing Strategy in assembly process)

  • 이철식;송장근
    • 경영과학
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    • 제10권2호
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    • pp.121-143
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    • 1993
  • Traditional Manufacturing method is push system by plan made in advance and Japanese manufacturing method represented by JUST-IN-TIME is pull system which respond's to the demand flexibly. Both have their pros and cons. In general, it is well understood that push system is faster than pull system in the sense of manufacturing speed. However, pull system such as JIT excelles dramatically in the sense of work in process. Therefore, this paper is trying to put together to get alternative which has the advantage of both system. The objective of the paper is to enhance the effect of built-in manufacturing system without paying extra cost by way of introducing the alternative of the pull-push manufacturing strategic operational method.

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