• 제목/요약/키워드: Deduction

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'부당한 연역 논증'은 형용모순이다! ('Invalid Deductive Argument' Is an Oxymoron!)

  • 최훈
    • 논리연구
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    • 제23권1호
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    • pp.25-53
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    • 2020
  • 홍지호·여영서는 "'부당한 연역 논증'은 형용모순인가?"라는 논문에서 연역 논증과 귀납 논증을 구분하는 기준으로 실현 기준이 아닌 의도 기준을 지지한다. 이 논문은 그들의 주장을 비판하는 것이 목표이다. 나는 그들의 주장이 논증 재구성과 논증 분류[평가]를 헷갈리고 있으며, 의도 기준의 난점을 해명하면서 실현 기준을 들여오고 있다고 주장한다. 그들을 비롯한 대부분의 논리학자들은 논증을 연역, 귀납, 그리고 나쁜 논증으로 나눈다. 나는 연역과 귀납으로 나누어야 한다고 주장한다. 마지막으로 논리 교육에서는 연역과 귀납의 구분을 굳이 가르칠 필요가 없다고 주장한다.

하이브리드 능직 탄소-아라미드 섬유 복합재의 모드 I 파괴인성에 대한 실험적 연구 (Experimental Investigations of Mode I Fracture Toughness of a Hybrid Twill Woven Carbon and Aramid Fabric Composite)

  • 권우덕;권오헌
    • 한국안전학회지
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    • 제34권6호
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    • pp.1-6
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    • 2019
  • Carbon fiber has excellent specific strength, corrosion resistance and heat resistance. And p-Aramid fiber has high toughness and heat resistance and high elasticity, and is used in various fields such as industrial protective materials, bulletproof helmets and vests, as well as industrial fields. However, carbon fiber is relatively expensive, and is susceptible to brittle fracture behavior due to its low fracture strain. On the other hand, the aramid fiber tends to decrease in elastic modulus and strength when applied to the epoxy matrix, but it is inexpensive and has higher elongation and fracture toughness than carbon fiber. Thus the twill hybrid carbonaramid fiber reinforced composite laminate composite was investigated for a delamination fracture toughness under Mode I loading by 2 kinds of MBT and MCC deduction. The specimen was fabricated with 20 hybrid fabric plies. The initial crack was made by inserting the teflon tape in the center plane with a0/W=0.5 length. The results show that SERR(Strain Energy Release Rate) as the critical and stable delamination fracture toughness were 0.09 kJ/㎡, 0.386 kJ/㎡ by MBT deduction, and 0.192 kJ/㎡, 0.67 kJ/㎡ by MCC deduction, respectively.

유머만화와 풍자만화의 서사구조 비교 연구 -네칸만화를 중심으로- (A Study on Narrative Structure of Humor and Satire Comic Strip -A Focus on 4 panels Comics Strips-)

  • 이원석
    • 한국콘텐츠학회:학술대회논문집
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    • 한국콘텐츠학회 2006년도 추계 종합학술대회 논문집
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    • pp.213-217
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    • 2006
  • 네칸만화는 기승전결 구조를 가지고 이야기를 전개한다. 기승전결 구조는 연역적, 비연역적 전개를 통해 이야기를 풀어 가는데, 작품에서 서사구조는 이야기를 보다 효과적이고 재미있게 전달하기 위해 다양한 변화를 꾀하고 있다. 이에 연구에서는 네칸만화의 연역적, 비연역적 전개를 주로 다룬다. 국내외 유명 네칸만화의 서사구조의 분석을 통해 네칸만화가 가진 이야기 구조를 밝히고, 유머만화와 풍자만화에 사용되는 서사구조의 분석을 통해 비교하는데 목적이 있다.

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해피하우스지역센터 프로그램에 관한 연구 (The Study on Program for Happy House Sanjeon District Center in Jung-gu, Ulsan City)

  • 김선중
    • 한국주거학회:학술대회논문집
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    • 한국주거학회 2011년도 춘계학술발표대회 논문집
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    • pp.161-166
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    • 2011
  • This research was conducted in order to suggestion management program of Happy house center which facility of detached housings, multi family housing, and semi-detached housing management. This study's purpose is to systematically help create a district customized co-management housing management system among detached housing area by reflecting resident opinion and simultaneously provide basic research. The area of research is Sanjoen district in Ulsan city that compact old detached houses. The research study's results are follows: First, the overall survey results showed that most respondents demanded program of happy house center for housing energy deduction method and support of house insulation cost and heating fuel cost. Second, happy house center try to order of priority or housing maintenance and seek of cost deduction plan. Third, happy house center propose the Maeulmandeulgi(Machizkuri) program or housing management plan for residents' talent contribution.

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하이브리드 스러스트 마그네틱 베어링의 제어변수 도출 및 동특성 해석 (Dynamic analysis and control parameters deduction of Hybrid thrust magnetic bearing)

  • 장석명;이운호;성소영;최장영;김순용
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2009년도 제40회 하계학술대회
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    • pp.724_725
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    • 2009
  • This paper deals with control parameters deduction and dynamic analysis of hybrid thrust magnetic bearing(HTMB). The flux density at air-gap is obtained from system modeling which considers permanent magnet and electro magnet. The vertical force is derived from flux density using maxwell's stress tensor. An accurate linear model is obtained by using linear approximations of the attraction force around the nominal equilibrium point. The dynamic simulation of the HTMB using the PD controller is conducted and control parameters are deducted.

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TP를 이용한 개선된 공급체인의 핵심문제 도출 및 해결방향 선정에 관한 연구 : 해병대 공급체인을 중심으로 (A Study on Core Problems Deduction and Selection of Solving Direction Using TP : Focus on Marine Corps's Supply Chain)

  • 김갑주;고현우
    • 산업경영시스템학회지
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    • 제31권1호
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    • pp.108-115
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    • 2008
  • Future war needs a lot of changes for military organization. In this circumstance, it is importance the role of the Military Equipment Command Separation (MECS). In case of Korea Marine Corps, in spite of being MECS, Marine Corps has formed supply chain depended on Amy and Navy even it. Thus we proposed a new SCM of Marine Corps with Sense and Response concept. There are many problems and arguments to implement of new SCM. Therefore it is essential solving the problems but we don't know core problems and right solving directions. So, In this study, we present core problems deduction and selection of solving direction using TP(Thinking Process).

The Sound and Complete Gentzen Deduction System for the Modalized Łukasiewicz Three-Valued Logic

  • Cao, Cungen;Sui, Yuefei
    • International Journal of Fuzzy Logic and Intelligent Systems
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    • 제16권3호
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    • pp.147-156
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    • 2016
  • A modalized Łukasiewicz three-valued propositional logic will be proposed in this paper which there are three modalities [t]; [m]; [f] to represent the three values t; m; f; respectively. And a Gentzen-typed deduction system will be given so that the the system is sound and complete with respect to the Łukasiewicz three-valued semantics Ł$_3$, which are given in soundness theorem and completeness theorem.

수학적 추론으로서의 가추법 (Abduction As A Mathematical Resoning.)

  • 김선희;이종희
    • 대한수학교육학회지:수학교육학연구
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    • 제12권2호
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    • pp.275-290
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    • 2002
  • This Study takes Peirce' abduction which is Phenomenology' first reasoning mode, as a part of mathematical reasoning with deduction and induction. Abduction(retroduction, hypothesis, presumption, and originary argument) leads a case through a result and a rule, while deduction leads a result through a rule and a case and induction leads a rule through a case and a result. Polya(1954) involved generalization, specialization, and analogy within induction, but this paper contain analogy in abduction. And metaphors and metonymies are also contained in abduction, in which metaphors are contained in analogy. Metaphors and metonymies are applied to semiosis i.e. the signification of mathematical signs. Semiotic analysis for a student's problem solving showed the semiosis with metaphors and metonimies. Thus, abductions should be regarded as a mathematical reasoning, and we must utilize abductions in mathematical teaming since abductions are thought as a natural reasoning by students.

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하이브리드 스러스트 마그네틱 베어링의 설계 파라미터 도출 및 특성해석 (Characteristics and design parameter deduction of hybrid thrust magnetic bearing)

  • 장석명;이운호;고경진;최지환;성소영;이용복
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2009년도 춘계학술대회 논문집 에너지변화시스템부문
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    • pp.52-54
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    • 2009
  • This paper deals with design parameters deduction and analysis of hybrid magnetic bearing. Using the solutions obtained from equivalent magnetic circuit, we predict the electromagnetic characteristics from permanent magnet and electromagnet and obtain the initial parameters. And then, using non-linear finite element analysis, a detailed design is performed considering saturation and asymmetry of flux density at the surface in order to meet requirements.

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