• 영어어문교육
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• 제12권1호
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• pp.103-129
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• 2006

This paper presents a case study of the effectiveness of debate class in promoting speaking skills of advanced learners. The researcher adopted English debate techniques in an English speaking class during four-week teacher training program and investigated how teachers responded to the new technique. Forty-five middle and high school teachers participated in the study and classroom observation, pre-survey, post-survey, and focus group interviews were used as the major research methods. The teacher pre-survey results presented that teachers prefer a conversation class where they can directly acquire proper sentence patterns and speaking strategies rather than spend time in performing communicative events. The results of the focus group interview and post-survey confirmed that a debate class can meet this specific teachers' needs. Most teachers responded positively to the debate classes since: 1) debate techniques are relatively new ideas to Korean teachers; 2) debate techniques require speed and accuracy in speech; thus teachers could learn to present their ideas logically and efficiently in a limited time through repeated argument exercises. The study result implies that debate technique can be an effective vehicle in an EFL context to promote advanced learners' logical thinking skills and logical English sentence structures.

• 대한한의학원전학회지
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• 제11권2호
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• pp.170-202
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• 1998

Lee Shi Zhen(李時珍) raised a question in argument on the writer of Bao Ming Shi(保命集), which had been believed to be written by Liu Wan Su(劉完素), arguing that Bao Ming Shi(保命集), also called Huo Fa Ji Yao(活法機要), was written by Zhang Yuan Su(張完素). There were three representative arguments on the writer of Bao Ming Shi(保命集). One suggested that it was written by Zhang Yuan Su(張完素) while the other argued that it was definitely written by Liu Wan Su(劉完素). And another suggested thai it was edited by posterity by combinding the works of the former two miters. After this study, it was found that Bao Ming Shi(保命集) has Liu Wan Su(劉完素) and Zhang Yuan Su(張完素)'s unique medical thoughts in many descriptions resulting in controversial dispute. Through these arguments, a new hypothesis has been made that the third person who had studied Liu Wan Su(劉完素) and Zhang Yuan Su(張完素)'s medical thoughts wrote Bao Ming Shi(保命集). Liu Wan Su(劉完素) and Zhang Yuan Su(張完素) were quite different in medial thoughts and their works and they found different school, respectively. Therefore, if Bao Ming Shi(保命集) was written by Liu Wan Su(劉完素) or Zhang Yuan Su(張完素), it is impossiple that Bao Ming Shj(保命集) has the two medical thoughts in many descriptions. So, it is regarded reasonable to argue that the person who had aquainted with the two medical thoughts wrote this book. Then enother question can be raised : why the persion wrote Bao Ming Shi(保命集) which integrated the two medical thoughts and. The answer is as follows. Liu Wan Su(劉完素) and Zhang Yuan Su(張完素) became the rounders of He Jian(河間) school and Yi Shui(易水) school, respectively, which have considerably affected later generations, suggesting advanced medical theory. The medical thoughts suggested by the two were sure advanced compared with the former generation, but subjective and biased enough be critisized. So, it is thought that the third person wrote Bao Ming Shj(保命集) to recover those demerits and to describe more advanced medical theory. Zhongyi Xueshushi(中醫學術史) suggests that posterity edited Bao Ming Shi(保命集) by combinding Liu Wan Su(劉完素) and Zhang Yuan Su(張完素)'s works, which is different flam my suggestment. In above description, it is said that the two medical thoughts were quite different, but Bao Ming Shi(保命集) has well-understood medical thoughts containing the two medical thoughts in chaptor to chaptor, and well coincides from cover to cover, which shows that it is written by one person not edited by posterity. My hypothesis can admit other arguments on the writer of Bao Ming Shi(保命集), recover the bias of those argument and solve the questions raised in other arguments. Therefore, I suggest that the person, who was well aquainted with Liu Wan Su(劉完素) and Zhang Yuan Su(張完素)'s medical thoughts, wrote Bao Ming Shi(保命集) to describe more advanced and complete medical theory by amending the bias and taking the merits of the two medical thoughts.

• 분석과 대안
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• 제6권1호
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• pp.195-222
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• 2022

From the economic development perspective, economic growth should accompany structural improvement in order to meet complex demands from a society. In the context of development economics, economic growth is critically dependent on successful structural advancement. The issue of structural change is also important for advanced economies as the landscape of modern industry is changing fast. Many advanced countries of slow growth are experiencing dawdling changes in industry structure. However, there is no definitive answer to the question of whether there is a causal relationship between structural change and growth. This study empirically assesses the relationship between structural change or 'speed' thereof and economic growth in developed countries of OECD. Rather than looking into the causes of structural changes, this study simply measures structural changes in OECD economies and examines if structural change is really contributing to growth. The reason why this study focuses on advanced countries of OECD is rather obvious; technological innovation and emergence of new industries pressure these countries to restructure their economies to address these new challenges though they are at stages well beyond conventional industrialization. And structural rigidity can always limit growth even in advanced countries. The main results of this study can be summarized as a positive relationship between 'change and growth'. 'Change' in this study refers to changes in the industrial structure based on value-added and was analyzed to have a close positive relationship with economic growth. This result is consistent with arguments of early development economists emphasizing structural upgrade as an indispensable process for growth and development. The result of this study potentially confirms that the main argument of development economics is valid also for advanced economies. One of our results suggests that business/professional services and social services should be main targets for restructuring for advanced economies. The rational may be that rapid convergence of manufacturing and services is a key for structural advancement in the era of new technologies. Obviously, as manufacturing technology and production are standardized, it is difficult to secure international competitiveness through traditional manufacturing alone and the role of R&D, design, logistics, and marketing is becoming more important.

• 센서학회지
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• 제32권1호
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• pp.10-15
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• 2023

It is well known that polycrystalline ceramics fabricated via the templated grain growth method along a desired crystallographic direction, generally along [001], exhibits enhanced piezoelectric response. Generally, the piezoelectric properties of textured ceramics depend on the degree of texture, as piezoelectric properties peak in single crystals. Therefore, understanding the relationship between the degree of texture and piezoelectric properties is fundamental. Here, we present state-of-the-art textured piezoceramics by focusing on critical issues such as the quality of templates used for texturing and proper evaluation of the degree of texture analysis. The relationship between the degree of texture and its impact on the properties of textured materials is exclusively defined by the Lotgering factor (L.F.) calculated from the X-ray diffraction profiles. Additionally, we show that L.F. is not a suitable indicator of the degree of texture, contrary to previous interpretations. This statement was further supported by the fact that the true degree of texture can be better quantified by the multiples of random distribution. This argument was justified by comparing the quantitative values of the degree of texture obtained from both methods to those of the piezoelectric charge coefficient of textured and random ceramics.

• 제어로봇시스템학회논문지
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• 제15권1호
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• pp.111-119
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• 2009

For daily life interaction with human, robots need the capability of encoding and storing cognitive information and retrieving it contextually. In this paper, spatiotemporal grounding of cognitive information for a language based cognitive system is presented. The cognitive information of the event occurred at a robot is described with a sentence, stored in a memory, and retrieved contextually. Each sentence is parsed, discriminated with the functional type of it, and analyzed with argument structure for connecting to cognitive information. With the proposed grounding, the cognitive information is encoded to sentence form and stored in sentence memory with object descriptor. Sentences are retrieved for answering questions of human by searching temporal information from the sentence memory and doing spatial reasoning in schematic imagery. An experiment shows the feasibility and efficiency of the spatiotemporal grounding for advanced service robot.

• 대한수학회논문집
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• 제9권3호
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• pp.565-570
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• 1994

In this article we prove a version of the Perron-Frobenius Theorem in linear algebra using the Brouwer's Fixed Point Theorem in topology. We will mostly concentrate on he qualitative aspect of the Perron-Frobenius Theorem rather than quantitative formulas, which would be enough for theoretical investigations in ergodic theory. By the nature of the method of the proof, we do not expect to obtain a numerical estimate. But we may regard it worthwhile to see why a certain type of result should be true from a topological and geometrical viewpoint. However, a geometric argument alone would give us a sharp numerical bounds on the size of the eigenvalue as shown in Section 2. Eigenvectors of a matrix A will be fixed points of a certain mapping defined in terms of A. We shall modify an existing proof of Frobenius Theorem and that will do the trick for Perron-Frobenius Theorem.

• International journal of advanced smart convergence
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• 제7권4호
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• pp.66-74
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• 2018

While new information technology advances have made information access and acquisition methods much more diverse and easier, there are side effects that allow illegal access using diverse and high-performance tools. In order to cope with such threats, there are access control methods in database technology, and various studies are being conducted to extend traditional access control to cope with new computing environments. In this paper, we propose an extended access control with uncertain context-awareness. It enables appropriate security policy enforcement even if the contextual constraints specified by the security policy does not match those accompanied by access request query. We extract semantic implications from context tree, and define the argument that can quantitatively measure the semantic difference between two nodes in the context tree. It is used to semantically enforce the security policy, and to prevent the excessive authorization caused by the implication.

• Bulletin of the Korean Chemical Society
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• 제23권2호
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• pp.215-220
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• 2002

The structures of 1-fluorosilatrane and the silatranyl cation were calculated by Hartree-Fock (HF), Mofller-Plesset second order (MP2), and various density functional theory (DFT) methods using many different basis sets, demonstrating that the Si-N bonds in two species are quite different. The N${\rightarrow}$Si bond distance of 1-fluorosilatrane from the hybrid DFT calculations $({\sim}2.32{\AA})$ using the Perdew-Wang correlation functional agrees with the gas phase experimental value $(2.324{\AA})$, while other functionals yield larger distances. The MP2 bond distance (2.287${\AA}$ with 6-311$G^{\ast}$) is shorter, and the HF one (2.544 ${\AA}$ with 6-311$G^{\ast}$) larger than those of DFT calculations. The MP2 bond distance is in good agreement with experiment indicating that the electron correlations are crucial for the correct description of the N${\rightarrow}$Si interaction. The silatranyl cation is a stable local minimum on the potential energy surface in all methods employed suggesting that the cation could be a reaction intermediate. The Si-N bond length for the cation is about 1.87 ${\AA}$ for all calculations tested implying that the Si-N bond is mainly conventional. Bonding characteristics of the Si-N bond in two species derived from the natural bond orbital analysis support the above argument based on calculated bond lengths.

• 한국과학교육학회지
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• 제33권4호
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• pp.840-862
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• 2013

이 연구는 과학 수업에서 논증 담화를 분석하기 위한 대안적 방법들을 제안했던 최근의 주요 선행 연구들을 논증활동의 협력적 구성과 인식적 실행의 측면에서 방법론적으로 고찰하였다. 또한, 선행 연구들에서 사용된 논증 담화 분석 방법의 성과와 제한점을 바탕으로 새로운 논증 담화 분석 방법을 제안하고, 이 논증 담화 분석법을 실제 과학 수업의 논증 담화에 적용하여 그것의 활용 가능성을 알아보았다. 연구를 위해 과학 수업의 논증 담화에 대한 선행 연구 중 Toulmin의 논증 틀을 논증 담화 분석에 적용한 연구, 논증의 구조, 내용, 및 정당화 과정을 종합적으로 조사하는 논증 담화 분석 방법을 모색한 연구, 그리고 논증 담화의 증거에 기반한 추론 과정을 강조한 연구들을 선정하였다. 또한, 담화 레지스터와 증거-설명의 연속선에 기반한 대안적 논증 담화 분석 방법으로서 DREEC을 고안하였고, DREEC을 수업 담화 사례에 적용하였다. 연구 결과, 선행 연구들에 사용된 논증 담화 분석 방법들은 주로 Toulmin의 논증 틀에서 제시한 논증 구성 요소의 유무에 근거하여 논증의 구조를 파악하였다. 이러한 접근은 논증 담화의 정량적 분석 및 비교는 가능한 반면, 논증의 정당화 과정 및 인식적 실행의 전개 과정에 기반한 논증의 질적 기술 및 비교가 어려웠고, 논증 담화 참여자들의 협력적 논증 구성 과정을 구체적으로 보여주지 못하는 한계가 있었다. 반면에 DREEC은 주제부/설명부 간에 형성된 연결 관계와 자료, 증거, 패턴, 및 설명에 이르는 연결 관계를 통해 논증의 협력적 구성과, 인식적 실행의 흐름에 기반하여 논증의 정당화 과정을 분석할 수 있었다.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2011년도 춘계학술발표대회 논문집
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• pp.65-68
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• 2011

The average increase in life expectancy obtained as a gift of modern science cannot hold itself responsible for extended life's happiness. It admits of no argument that the necessity of social preparation for minimizing bad health and longevity of unhappiness to aged people who are in the state of these continuous growth. Recently, because of an aging trend, targeting on elderly housing expected continuous increased demand in housing market, this study is to comprehend it's characteristic and offer implications. For the characteristic of elderly housing, firstly it needs scientific analysis of related theory and analysis of statistical data. Also this study aims to look through and suggest an alternative included the special matters of Korean society with advanced foreign country's analysis of an alternative. And judging from economic characteristics of elderly housing to be presented as an important factor, choices of housing according to economic level are anticipated to show different forms. In future, to supply elderly housing, therefore, the introduction of the concept of housing providing various opportunity of choice is necessary. If studies proceed through expanded alternative, it is judged to be able to draw more varied results in elderly housing. Also, if going along with political dimension study, it is expected to offer more specific and effective solutions of the problem of elderly housing.