• Title/Summary/Keyword: Pattern Table

검색결과 344건 처리시간 0.022초

소실모형주조용 진동장치의 동특성 분석 및 개선 (Analysis of Dynamic Characteristics and Improvement of Vibration Table for Expendable Pattern Casting Process)

  • 이은경;설진수;이경환;최경환;임경화
    • 한국소음진동공학회논문집
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    • 제14권3호
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    • pp.185-192
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    • 2004
  • Vibration table is required to obtain high packing density in expendable pattern casting process. Packing density. which is an important manufacture factor, depends on the vibration pattern induced by vibration table. In general, circular vibration pattern is recognized as the best pattern. The existing vibration table is investigated to identify current vibration pattern and consider a countermeasure. Modal test is utilized to identify the dynamic characteristics of vibration table, and finite element method is used to propose the improved design. In simulation using finite element method, the position of stiffeners is obtained to satisfy the required dynamic characteristics.

소실모형주조용 진동장치의 성능평가 (Performance Evaluation Of Vibrating Table for Expendable Pattern Casting Process)

  • 이은경;임경화;이경환
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2002년도 추계학술대회논문집
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    • pp.160-165
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    • 2002
  • Vibration table is required to obtain high packing density in expendable pattern casting process. Packing density, which is an important manufacture factor, depends on the vibration pattern induced by vibration table. In general, circular vibration pattern is recognized as the best pattern. The existing vibration table is investigated to identify current vibration pattern and consider a countermeasure. Modal test is utilized to identify the dynamic characteristics of vibration table, and finite element method is used to present the improved design.

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소실모형주조용 진동장치의 성능 평가 (Performance Evaluation of Vibration Table for Lost Foam Casting Process)

  • Lee, Eun-Kyung;Rim, Kyung-Hwa;Lee, Kyung-Whoan
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2002년도 추계학술대회논문초록집
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    • pp.322.2-322
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    • 2002
  • Vibration table is required to obtain high packing density in lost form casting process. Packing density, which is important manufacture factor, depends on the vibration pattern induced by vibration table. In general, circular vibration pattern is recognized as the best pattern. The existing vibration table is investigated to identify current vibration pattern and consider a countermeasure. Modal test is utilized to identify the dynamic characteristics of vibration table, and finite element method is used to present the improved design

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소실모형주조용 진동장치의 동특성 분석 및 설계 (Analysis of Dynamics Characteristics and Design of vibrating Table for Expendable Pattern Casting Process)

  • 이은경;설진수;임경화;이경환
    • 한국소음진동공학회:학술대회논문집
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    • 한국소음진동공학회 2003년도 춘계학술대회논문집
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    • pp.269-274
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    • 2003
  • Vibration table is required to obtain high packing density in expendable pattern casting process. Packing density, which is an important manufacture factor, depends on the vibration pattern induced by vibration table. Modal test is utilized to identify the dynamic characteristics of vibration table. And finite element method is used to modify flask by fixing the stiffener. The positions of stiffener to modify are found and the natural frequency could be easily shifted to the objective value by using sensitivity analysis.

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패턴 테이블을 이용한 코드 최적화 (Code Optimization Using Pattern Table)

  • 윤성림;오세만
    • 한국멀티미디어학회논문지
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    • 제8권11호
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    • pp.1556-1564
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    • 2005
  • 원시 프로그램에 대한 컴파일 과정 중 최적화 단계에서는 프로그램의 실행 속도를 개선시키고 코드 크기를 줄일 수 있는 다양한 최적화 기법을 수행한다[17]. 최적화 패턴 매칭 방법 중 스트링 패턴 매칭 방법은 중간 코드에 대응하는 최적의 패턴을 찾기 위한 방법으로 과다한 최적화 패턴 검색 시간으로 비효율적이다. 트리 패턴 매칭은 패턴 결정시 중복 비교가 발생할 수 있으며, 코드의 트리 구성에 많은 비용이 드는 단점을 가지고 있는 방법들이다[16,18]. 본 논문에서는 기존의 최적화 방법들의 단점을 극복하기 위한 방법으로 DFA (Deterministic Finite Automate) 최적화 테이블을 이용한 코드 최적화기를 제안하려고 한다. 이 방법은 다른 패턴 매칭 기법보다 결정적인 오토마타(Automata)로 구성하기 때문에 비용은 적어지고, 오토마타를 통해 결정적으로 패턴이 확정됨에 따른 패턴 선택 비용이 줄어들며, 최적화 패턴 검객 시간도 빨라지는 효율적인 방법의 최적화기이다.

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서부경남의 소목장연구 II - 대한민국 김병수 명장의 교육과정의 제작기법을 응용한 현대화/회의실용 대형 원형 보상화문 탁자 개발 - (A Study on A Cabinet Maker, Kim Byeung-Soo in Korean Western Gyeongnam Province - Development of a Large Round Table with Bosang Flower Pattern for a Contemporary Meeting Room -)

  • 문선옥
    • 한국가구학회지
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    • 제27권4호
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    • pp.325-334
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    • 2016
  • This study explores developing a large round table with Bosang flower pattern for a contemporary meeting room made by a cabinet maker, Kim Byeung-soo, who has built the traditional Korean furniture in Korean Western Gyeongnam Province since after his elementary school. He uses the post finger joint from one of the middle level of his education process based on the traditional Korean technique, develops it into flower stem joint, and adds flower patterns' carving decoration called Bosang flower patterns. Hence, the table makes the table be strong, useful, and beautiful. Therefore, the modernized round table will be able to make the people access more easily and to make more demand on the traditional Korean furniture and the adopted furniture than ever.

트리패턴매칭기법의 재목적 가능한 중간코드 최적화 시스템 (Retargetable Intermediate Code Optimization System Using Tree Pattern Matching Techniques)

  • 김정숙;오세만
    • 한국정보처리학회논문지
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    • 제6권8호
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    • pp.2253-2261
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    • 1999
  • ACK에서는 패턴 테이블 생성기와 핍홀 최적화기에서 스트링 패턴 매칭 기법을 이용하여 EM 중간 코드에 대한 최적화 코드를 생성한다. 하지만 이 스트링 패턴 매칭 방법은 패턴 결정 시에 반복적으로 많은 비교 동작이 이루어지므로 비효율적이다. 본 논문은 ACK의 중간 코드 최적화기를 개선하기 위해 EM 트리 생성기, 최적화 패턴 테이블 생성기, 트리 패턴 매칭기로 구성된 트리 패턴 매칭 알고리즘을 이용한 EM 중간 코드 최적화 시스템을 설계하고 구현하였다. 이러한 트리 패턴 매칭 알고리즘은 EM 트리를 하향식으로 순회하면서 트리 구조를 가진 패턴 테이블을 참조하여 루트 노드를 중심으로 패턴 매칭을 수행한다. 트리 패턴 매칭 동작은 궁극적으로 ACK의 스트링 패턴 매칭에 비해 최적화 패턴을 찾는데 걸리는 시간을 평균 10.8% 감소시킬 수 있는 효과를 보였다.

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19세기 청화백자에 표현된 문양을 활용한 자동차 시트 직물 패턴디자인 개발 (The Development of Textile Pattern Designs for Car Seats Using Patterns Expressed on Nineteenth-century Blue and White Porcelain)

  • 정진순
    • 한국의류산업학회지
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    • 제24권4호
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    • pp.372-385
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    • 2022
  • In this study, the patterns expressed on nineteenth-century blue and white porcelain among Joseon white porcelain were selected as the material for the development of the car seat fabric design. It was intended to be applied to car seat design by incorporating Korea's own traditional patterns to fit modern sensibility. First, seven pieces of nineteenth-century blue and white porcelain were selected through the literature, and motifs were produced using adobe illustrator, a computer graphic program. Seven car seat fabric designs were developed according to the construction method and development method of the produced motif. Work 1 was designed to elicit a soft and feminine atmosphere using the peony pattern shown in Table 1-1. Work 2 aimed to express a luxurious atmosphere using the image of the mountain expressed in Table 1-2 as a design material. Works 3 was designed by freely arranging the letters of luck expressed in Table 1-3 to form a free and dynamic image. Work 4 was intended to express a stable and rhythmic atmosphere by horizontally arranging the images of the gently curved wings, tail, and rhythmical tail feathers of the phoenix expressed in Table 1-4. Work 5 was designed in a vertical arrangement using the patterns and silhouettes of the tiger's back expressed in Table 1-5. Work 6 was designed using the wave pattern expressed in Table 1-6 to replicate the rhythmic atmosphere. Work 7 was designed using the images of rocks, waves, and the sun in Table 1-7 to express a calm and antique atmosphere.

$\ll$내경(内经)$\gg$적하도오행모식급궤개상관문제적해석(的河图五行模式及几个相关问题的解析) (The Five-Element Pattern of "River Table(河圖)" in the "Naegyeong(內經)" and the Analysis of Its Concerned Issues)

  • 손광인;고박;차용진
    • 대한한의학원전학회지
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    • 제22권4호
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    • pp.29-32
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    • 2009
  • We have explored the five-element pattern of "River Table(河圖)" in the "Naegyeong(內經)", and conclude that this pattern is one of the five-element patterns applied in the "Naegyeong". Based on this pattern, we can exactly understand the eum(陰) and yang(陽) range of five Jang-organs, why the spleen is the extreme eum, why the spleen is the isolated Jang, how the spleen governs four seasons, the ascending and descending of visceral gi(氣), as well as why it can be applied in clinic that the spleen and stomach are the pivot of the ascending and descending of visceral gi(氣).

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