• Title/Summary/Keyword: S/E Process

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Current Understanding of the Mechanism of qE, a Major Component of Non-photochemical Quenching in Green Plants

  • Zulfugarov Ismayil S.;Mishra Sujata R.;Han, Ok-Kyung;Safarova Rena B.;Nath Krishna;Lee, Choon-Hwan
    • Journal of Photoscience
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    • v.12 no.3
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    • pp.175-183
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    • 2005
  • Plants dissipate excess excitation energy from their photosynthetic apparatus by a process called non-photochemical quenching (NPQ). The major part of NPQ is energy dependent quenching (qE) which is dependent on the thylakoid pH and regulated by xanthophyll cycle carotenoids associated with photosystem (PS) II of higher plants. The acidification of the lumen leads to protonation and thus conformational change of light harvesting complex (LHC) proteins as well as PsbS protein of PSII, which results in the induction of qE. Although physiological importance of qE has been well established, the mechanistic understanding is rather insufficient. However, recent finding of crystal structure of LHCII trimer and identification of qE mutants in higher plants and algae enrich and sharpen our understanding of this process. This review summarizes our current knowledge on the qE mechanism. The nature of quenching sites and components involved in this process, and their contribution and interaction for the generation of qE appeared in the proposed models for the qE mechanism are discussed.

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A Case Study on the Construction e-Collaboration Process Control System of Middle and Small Manufacturing Industry (중소제조업의 협업공정관리시스템 구축 적용 사례)

  • Kim, Jong-Tae
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.32 no.2
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    • pp.13-20
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    • 2009
  • The purpose of this paper is to give information on e-CPC implementation in the manufacturing industry by studying and analyzing a small and medium sized manufacturing company. After analyzing Various factors on J's e-CPC implementation such as environmental factors, process management factor, and result factors, success factors on J's e-CPC implementation are analyzed. The results of this paper can be summarized as follows. First, the most leading role on J's ERP implementation is the will and support of CEO and team leaders. They led the implementation to be stability successfully by settling the different opinions among teams, showing their ability on process decision and communication with consultants. Second, J tried to prompt system stability by mapping out and conducting the long term change management strategy. Third, J organized ERP project team to implement ERP quickly, and it turned out to be successful Finally, J tried to get outside information from consultants and collaborative companies that have experience in implementing ERP. Especially J made full use of overseas consultants. In respect that this paper giver lots of information on e-CPC implementation in manufacturing industry by a case study of a small and medium sized manufacturing company which has not been carried out so far, it would be useful enough.

A Study on the Congress Palace in new city(E42) of Rome - Focused on the Adalberto Libera's project(1937-1943) - (로마 신도시(E42) 국제회의장에 관한 연구 - 아달베르토 리베라의 당선작(1937-1943)을 중심으로-)

  • Lee, Dae-Jin
    • Journal of architectural history
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    • v.18 no.4
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    • pp.81-99
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    • 2009
  • The study is on the analysis of Adalberto Libera's works, which are those of the competition works for international congress hall in 'E42'. I exerted a conclusion from analysis and studies of congress palace as well as informed data about architect Libera and uninformed original sketch of it. 1. Through analysis of original sketch data in possession of archives of paris Centre Pompidue and relevant sketch from the works, Libera adopts the modern architecture of Italy to the formalization process of concept as one of architectural methods. 2.In contrast to the way of elucidation of historicity of classicism architect, Libera's initial sketch is one of the traits from modernist's architectural concept process. Libera completes his architectural style to have developed new architecture vocabulary from 'Floating transparent box' which was result from intuition and imagination. 3 By comparing all the first plan, the second plan and constructed project, we can infer that Libera's plan was influenced by E42's classicism urban environment and masterplanner Piacentini. In addition, through historicity explanation method of modernist, it is adjudicated that the front side of facade with classism and the back side of facade with modern are partially accepted. 4. By analysing architectural concept's formalization process from original sketch of Congress palace, outstanding architect of Italian Fascism architecture, it provided new methods of architectural programming with the concrete examples.

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BOUNDARY-VALUED CONDITIONAL YEH-WIENER INTEGRALS AND A KAC-FEYNMAN WIENER INTEGRAL EQUATION

  • Park, Chull;David Skoug
    • Journal of the Korean Mathematical Society
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    • v.33 no.4
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    • pp.763-775
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    • 1996
  • For $Q = [0,S] \times [0,T]$ let C(Q) denote Yeh-Wiener space, i.e., the space of all real-valued continuous functions x(s,t) on Q such that x(0,t) = x(s,0) = 0 for every (s,t) in Q. Yeh [10] defined a Gaussian measure $m_y$ on C(Q) (later modified in [13]) such that as a stochastic process ${x(s,t), (s,t) \epsilon Q}$ has mean $E[x(s,t)] = \smallint_{C(Q)} x(s,t)m_y(dx) = 0$ and covariance $E[x(s,t)x(u,\upsilon)] = min{s,u} min{t,\upsilon}$. Let $C_\omega \equiv C[0,T]$ denote the standard Wiener space on [0,T] with Wiener measure $m_\omega$. Yeh [12] introduced the concept of the conditional Wiener integral of F given X, E(F$\mid$X), and for case X(x) = x(T) obtained some very useful results including a Kac-Feynman integral equation.

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Development of Rapid Heat Ablation process Using Rotary Hot tool (회전 열공구를 이용한 쾌속 열용삭 공정 개발에 관한 연구)

  • Kim H.C.;Park S.H.;Yang D.Y.;Park S.K.
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2005.10a
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    • pp.224-230
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    • 2005
  • In order to realize a three-dimensional shape on CAD, the machining process has been widely used because it offers practical advantages such as precision and versatility. However, the traditional machining process needs a large amount of time in cutting a product and the remained material causes trouble such as inconvenience due to cleaning process. This paper introduces a new rapid manufacturing process called Rapid Heat Ablation process (RHA) using the rotary hot tool to overcome limitations of traditional machining process. The rotary hot tool to satisfy requirements of RHA process is designed and produced. In order to examine relationships between kerfwidth and process parameters such as heat input, speed of tool and speed of revolution, experiments were carried out. In addition, relationship between the kerfwidth and the effective heat input was obtained. Based on the experimental results, double-curved shape was ablated to show the validity of proposed process. In the procedure, the rough cut and fine cut were performed according to the conditions of process parameters without tool change process. The practicality and effectiveness of the proposed process have been verified through ablation of three-dimensional shape.

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Impact of Big Data Analytics on Indian E-Tailing from SCM to TCS

  • Avinash BM;Divakar GM;Rajasekhara Mouly Potluri;Megha B
    • Journal of Distribution Science
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    • v.22 no.8
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    • pp.65-76
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    • 2024
  • Purpose: The study aims to recognize the relationship between big data analytics capabilities, big data analytics process, and perceived business performance from supply chain management to total customer satisfaction. Research design, data and methodology: The study followed a quantitative approach with a descriptive design. The data was collected from leading e-commerce companies in India using a structured questionnaire, and the data was coded and decoded using MS Excel, SPSS, and R language. It was further tested using Cronbach's alpha, KMO, and Bartlett's test for reliability and internal consistency. Results: The results showed that the big data analytics process acts as a robust mediator between big data analytics capabilities and perceived business performance. The 'direct, indirect and total effect of the model' and 'PLS-SEM model' showed that the big data analytics process directly impacts business performance. Conclusions: A complete indirect relationship exists between big data analytics capabilities and perceived business performance through the big data analytics process. The research contributesto e-commerce companies' understanding of the importance of big data analytics capabilities and processes.

A Case Study of On-line Arbitration and Comparison on ODR between Korea and China for the Dispute Resolution of E-Commerce (전자상거래 분쟁해결을 위한 한국과 중국의 ODR제도 비교 및 온라인 중재 사례 연구)

  • Moon, Hee-Cheol;Zhang, Ping;Kim, Sung-Ryong
    • Journal of Arbitration Studies
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    • v.24 no.4
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    • pp.29-47
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    • 2014
  • In recent years, with the rapid development of electronic commerce, companies engaging in e-commerce want to take advantage of fast and easy way to solve ever-growing disputes online. South Korea's e-commerce disputes are mainly solved by mediation process of Korea E-commerce Mediation Committee. The whole process of online mediation can be carried out by the network, with the advantages of high efficiency and speed. On the other hand, the introduction of CIETAC's online Arbitration Rules in China meets the actual needs. Especially the requirement of hearing trials' procedures should be easier and faster, making the dispute can be resolved in a short time. Furthermore, the whole process from applying to ruling is conducted online, which meets the needs of e-commerce business that want to solve the disputes faster and more efficient. In addition, the cost of online arbitration is much lower than the average arbitrations. The implementation of the CIETAC's Online Arbitration Rules, will further promote the development of e-commerce in China. With the increase of trade volume between China and Korea, the e-business are also increasing. Although South Korea has not yet implemented online arbitration until now, CIETAC's effort for combining arbitration and mediation have good implications for development Korea's e-commerce online dispute system to promote e-Commerce between Korea and China.

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A change Management Model for BPM Documents in e-Business Environments (e-Business를 위한 BPM 문서 변경관리 모델)

  • 배혜림;조재균;정석찬;박기남
    • The Journal of Society for e-Business Studies
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    • v.8 no.3
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    • pp.87-105
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    • 2003
  • Business Process Management (BPM) is an emerging trend of managing business process life cycles and integrating heterogeneous systems . Recently, BPM is considered as an essential element for automation of complex business processes involving many companies, particularly for those in an e-Business environment. In such an environment, it is very important for each business partner to trace history of resources. However, it has been a difficult problem for Workflow Management Systems(WFMSs) to support management of resource changes because of limited storage, complex process structure, and absence of formal change model. In this paper. a new framework is proposed, which can support change management for documents, one of core resources of business process. Under a traditional WFMSs framework, all workflow components belong to either build-time or run-time function, and executions of workflow processes are performed by the two functions . To manage changes of documents while process executing. a new framework with additional component modules are required. A version control method is introduced for the purpose of managing document changes. The proposed method includes five models for document structure, process structure, association between process and document, version management, and efficient version storage. A prototype system is developed to demonstrate the effectiveness of the proposed models.

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SEM-CT: Comparison of Problem Solving Processes in Science(S), Engineering(E), Mathematic(M), and Computational Thinking(CT) (SEM-CT: 과학(S), 공학(E), 수학(M)적 문제해결과정과 컴퓨팅 사고(CT))

  • Nam, Younkyeong;Yoon, JinA;Han, KeumJoo;Jeong, JuHun
    • The Journal of Korean Association of Computer Education
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    • v.22 no.3
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    • pp.37-54
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    • 2019
  • The main purpose of STEM education is to understand methods of inquiry in each discipline to develop convergent problem solving skills. To do this, we must first understand the problem-solving process that is regarded as an essential component of each discipline. The purposes of this study is to understand the relationship between the problem solving in science (S), engineering (E), mathematics (M), and computational thinking (CT) based on the comparative analysis of problem solving processes in each SEM discipline. To do so, first, the problem solving process of each SEM and CT discipline is compared and analyzed, and their commonalities and differences are described. Next, we divided the CT into the instrumental and thinking skill aspects and describe how CT's problem solving process differs from SEM's. Finally we suggest a model to explain the relationship between SEM and CT problem solving process. This study shows how SEM and CT can be converged as a problem solving process.

A Study on the Direction for the Institutional Improvement of Financial Supply Chain Management Solution under Global e-Trade (글로벌 전자무역에서의 금융지원체인관리 솔루션의 운용현황과 개선방향 - Bolero를 중심으로 -)

  • Chae, Jin-Ik
    • THE INTERNATIONAL COMMERCE & LAW REVIEW
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    • v.33
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    • pp.247-275
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    • 2007
  • This paper is to propose the Direction for the institutional improvement of Financial Supply Chain Management(FSCM) Solution which are currently coming into operation under Global e-Trading Platform. The Financial Supply Chain compromise the entire trade processes and information that manage a trader's cash, Accounts payable and receivable, Risk, working capital, and so on in international trade transaction. From a buyer's perspective, this involves the full procurement-to-payment process. For the seller, it is the order-to-cash cycle. Bolero provides the party concerned a e-trade platform which conformed to these fundamental pre-requisites to underpin fully electronic trade. But this FSCM solution have failed to provide the efficient platform to effectively manage the process of Global e-Trade because it does not correspond with e-Trade environment. Therefore, present FSCM system need the institutional improvement as follows: AA) Strengthening the role of the correspondent Bank under e-Trade System, BB) Extending the function of e-Trade intermediary institution, CC) The introduction of Trade Insurance System, etc. So, by streamlining and automating these processes on an open and flexible platform, The party concerned can optimize their trade transaction and maintain better relations with their business partners

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