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A Study on Improvement in a Method of Three Dimensional Configuration Scan Measurement (3차원 형상 스캔의 측정방법 개선에 관한 연구)

  • 김태호;김민주;이승수;박정보;전언찬
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2001.10a
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    • pp.375-380
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    • 2001
  • This study is on the precision of the optical scanner which is suitable for shape modeling and non-contact equipment, comparing with a razer scanner. The optical scanner not only has all merits that non-contact methods have but also improve a veil phenomenon which is a razer scanner's demerits. However, the optical scanner has not been used extensively because the measurements are not very precise and there are not the definite methods of measurement. Hence, this study is to find out how parameters such as camera's hight, angle, luminous intensity, distance to object, and so on have an influence on measuring using the optical scanner and to establish the methods of measuring precision.

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A Study on Three-dimensional Configuration Scan by Photographing Parameter (촬영 매개변수에 의한 3차원 형상스캔에 관한 연구)

  • 이승수;김세민;김민주;박정보;전언천
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1997.10a
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    • pp.1013-1017
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    • 1997
  • This study is on the precision of the optical scanner which is suitable for shape modeling and non-contact equipment, comparing with a razer scanner. The optical scanner not only has all merits that non-contact methods have but also improve a veil phenomenon which is a razer scanner's demerits. However, the optical scanner has not been used extensively because the measurements are not very precise and there are not the definite methods of measurements, Hence, this study is to find out how parameters such as camera's hight, angle, luminous intensity, distance to object, and so on have an influence on measuring using the optical scanner and to establish the methods of measuring precision.

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A Study on Improvement of the Measurement Method for Optical Scanner (광학식 스케너의 측정방법 개선에 관한 연구)

  • Joo, M.S.;Kim, M.J.;Lee, S.S.;Kim, S.K.;Jeon, E.C.
    • Proceedings of the KSME Conference
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    • 2001.11a
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    • pp.841-847
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    • 2001
  • This study is on the precision of the optical scanner which is suitable for shape modeling and non-contact equipment, comparing with a razer scanner. The optical scanner not only has all merits that non-contact methods have but also improve a veil phenomenon which is a razer scanner's demerits. However, the optical scanner has not been used extensively because the measurements are not very precise and there are not the definite methods of measurement. Hence, this study is to find out how parameters such as camera's hight, angle, luminous intensity, distance to object, and so on have an influence on measuring using the optical scanner and to establish the methods of measuring precision.

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A Best-First Branch and Bound Algorithm for Unweighted Unconstrained Two-Dimensional Cutting Problems (비가중 무제한 2차원 절단문제에 대한 최적-우선 분지한계 해법)

  • Yoon, Ki-Seop;Yoon, Hee-Kwon;Kang, Maing-Kyu
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.32 no.1
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    • pp.79-84
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    • 2009
  • In this paper, a best-first branch and bound algorithm based upon the bottom-up approach for the unweighted unconstrained two-dimensional cutting problem is proposed to find the optimal solution to the problem. The algorithm uses simple and effective methods to prevent constructing duplicated patterns and reduces the searching space by dividing the branched node set. It also uses a efficient bounding strategy to fathom the set of patterns. Computational results are compared with veil-known exact algorithms and demonstrate the efficiency of the proposed algorithm.

Characteristics of Wave Transmission Through Various functions in Coupled Beams (연성보에서 연결 구조에 따른 파동 전달 특성)

  • 이병철;길현권;이효행;이용현;홍석윤
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2004.05a
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    • pp.468-473
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    • 2004
  • The objective of this paper is to analyze the characteristics of wave transmission through various junctions in coupled beams. The in-plane vibration as veil as the out-of-plane vibration are generated due to the wave conversion at the junctions in the coupled beams. The out-of-plane vibration is associated with propagation of out-of-plane waves (flexural waves). The in-plane vibration is associated with propagation of in-plane waves (longitudinal and torsional waves). In order to effectively reduce vibration and structure-borne noise, it is necessary to understand the characteristics of wave conversion at various junctions in the coupled structures. The numerical results in this paper have showed the characteristics of wave transmission through various junctions in coupled beams. Those could be helpful to designer to develop the idea to reduce vibration and structure-borne noise.

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A Fast Thresholding Method For Pattern Matching (패턴매칭을 위한 고속 스레쉬홀딩법)

  • Li, Zhe-Xue;Kim, Sang-Woon
    • Proceedings of the KIEE Conference
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    • 2006.04a
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    • pp.126-128
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    • 2006
  • For pattern matching, an object image should be segmented and analyzed for the first time. Thresholding is a fundamental approach to segmentation that utilizes a significant degree of pixel popularity or intensity. Otsu's thresholding is one of the most veil-known methods proposed in the literature. However, the method has a disadvantage of repeatedly searching the optimal thresholds for the entire region. To overcome this problem, a number of methods have been proposed. In this paper, we propose a simple and fast thresholding method of finding multi-level threshold values by extending the Otsu's method. Our experimental results for the benchmak images show a possibility that the proposed method could be used efficiently for pattern matching.

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The Factors of Korean Costume's Change in the Modern Times (근대(近代) 한국복식(韓國服飾)의 변화(變化) 요인(要因))

  • Lee, Myoung-Hee
    • Journal of the Korean Society of Costume
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    • v.5
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    • pp.153-163
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    • 1981
  • Since Korea opened the door to the Western World, traditional costume has changed. The factors of change are as follows: 1) Cultural diffusion by the cultural contact is the foundamental factor of the costume change. 2) The government made edicts of clothing reform. The formal dresses of government official were simplified several times, the edict was issued for men to cut off their hair, and military uniform and government officials' dresses were west-ernized. 3) The diffusion of modernized education by the missionary school accerlerated clothing change. Students were ahead of the abolition of Suege-Chima (which is a sort of veil used to conceal woman's face). 4) The change in the activity of women in society made the women's dresses more convenient for action. 5) The open class system and social agitation speeded up the rate of change. During the Yi Dynasty class distinction was rigid, but the government made the laws which abolished the class distiction.

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The performance Evaluation of SA filters for images corrupted by mixed noise (혼합 잡음 영상에서 SA 필터의 성능 분석)

  • Song, Jong-Kwan
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.11 no.3
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    • pp.471-478
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    • 2007
  • The SA fillers encompass a large class of filters based on order statistics as veil as linear FIR filters. Using SA later structure, it is possible to design linear and non-linear filters under a unified framework. In this paper SA filters are applied to an image smoothing problem for mixed noise. Original image is contaminated by Gaussian and impulsive noise. Optimal SA filters are designed and applied to contaminated image. The experimental result shows that SA filters outperform linear FIR and ordering-based nonlinear filters.

"A Study on Hebrews Clothing in the Old Testament" - Especially on Hair Styles, Headgears, Footwear and Personal Ornaments - (구약성서(舊約聖書)에 나타난 히브리인의 복식(服飾) - 두식(頭飾), 신발 및 장신구(裝身具) 중심(中心)으로 -)

  • Park, Chan-Boo
    • Journal of the Korean Society of Costume
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    • v.10
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    • pp.63-80
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    • 1986
  • The Old Testament cotains mention of the history of creation and clothing in ancient Hebrew. This study dealt with Hebrew dress customs especially aimed at the manners of their hair styles, headgears, footwear and personal ornaments. References are Korean Revised Version, English King James Version and Revised Standard Version. There is little mention of hair styles and headgears in the Old Testament. Some sort of turban was worn by priests, and soldiers protected themselves with helmets, but most Israelitish men went bareheaded except on special occasions and often wear simple headbands. It was more common for women to use headwear of some type-turbans, scarves, and veils concealing the face. The veil was the distinctive female wearing apparel. All females, with the exception of maidservants and women in a low condition of life, wore a veil. It was the custom for women to wear a veil entirely covering their head in the public. Through most of the Old Testament periods long and thick hair was admired on men and women alike. The Hebrews were proud to have thick and abundant long hair, and they gave much attention to the care of their hair. The caring of hair was deeply related to their rituals. Nazirites never took a razor to their hair during his vow-days, but instead let it grow long, as an offering to God. Men would not cut their beards, but allow them to grow long. The Israelites' standard footwear was a pair of simple leather sandals. This was one of the items of clothing not highly prized. In a colloquial saying of the time, a pair of shoes signified something of small value, and to be barefoot except in times of mourning or on holy place, was a sign either of extreme poverty or humiliation, as in the case of war prisoners. Because precious stones were not mined in the Palestine-Syria region, Hebrews imported them from foreign country. They were consumer-to a large degree limited by their very modest standard of living-but not producers. Hebrews liked the precious stones and were motivated to acquire and wear jewels. Besides their use for adornment and as gifts, the precious or semiprecious stones were regarded by Jews of property. The Hebrews were not innovators in the field of decorative arts. The prohibition of the Law against making any "graven image" precluded the development of painting, sculpture, and other forms of representational art. Jewish men did not indulge in extravagances of dress, and there was little ornamentation among them. Men wore a signet ring on their right hand or sometimes suspended by a cord or chain around the neck. The necklaces, when worn by a male, also bore any symbol of his authority. Bracelets were extremely popular with both men and women, men usually preferring to wear them on their upper arms. The girdle was a very useful part of a man's clothing. It was used as a waist belt, or used to fasten a man's sword to his body, or served as a pouch in which to keep money and other things. Men often carried a cane or staff, which would be ornamented at the top. Among the women there was more apt to be ornamentation than among the men. Hebrew women liked to deck themselves with jewels, and ornamentation of the bride were specially luxurious and numerous. They wore rings on their fingers or On toes, ankle rings, earrings, nosering, necklace, bracelets. Their shapes were of cresent, waterdrops, scarab, insect, animal or plant. Sometimes those were used as amulets. They were made of ceramics, gold, silver, bronze, iron, and various precious stones which were mostly imported from Egypt and Sinai peninsular. Hebrews were given many religious regulations by Moses Law on their hair, headgears, sandals and ornamentation. Their clothing were deeply related with their customs especially with their religions and rituals. Hebrew religion was of monotheism and of revealed religion. Their religious leaders, the prophets who was inspired by God might need such many religious regulations to lead the idol oriented people to God through them.

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Enforcement of Arbitral Agreement to Non-Signatory in America (미국에 있어서 비서명자에 대한 중재합의의 효력)

  • Suh, Se-Won
    • Journal of Arbitration Studies
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    • v.18 no.1
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    • pp.71-96
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    • 2008
  • Arbitration is fundamentally a matter of contract, whereby contractual parties may only be required to submit a dispute to arbitration pursuant to their formal agreement. However, there are several important exceptions to this rule that have developed under common law notions of implied consent. These doctrines may serve either to benefit or to harm a nonsignatory to an arbitral agreement because either (1) the nonsignatory may compel a signatory to the agreement to arbitrate a dispute or (2) the nonsignatory may be compelled to arbitrate a dispute despite never having signed an arbitration agreement. The Court has a long-standing domestic policy of favoring arbitration, and these doctrines reflect that policy. 1. incorporation by reference An arbitration clause may apply to a party who is a nonsignatory to one agreement containing an arbitration clause but who is a signatory to a second agreement that incorporates the terms of the first agreement. 2. assumption An arbitration clause may apply to a nonsignatory who has impliedly agreed to arbitrate. Under this theory, the nonsignatory's conduct is a determinative factor. For example, a nonsignatory who voluntarily begins arbitrating the merits of a dispute before an arbitral tribunal may be bound by the arbitrator's ruling on that dispute even though the nonsignatory was not initially required to arbitrate the dispute. 3. agency A nonsignatory to an arbitration agreement may be bound to arbitrate a dispute stemming from that agreement under the traditional laws of agency. A principal may also be bound to arbitrate a claim based on an agreement containing an arbitration clause signed by the agent. The agent, however, does not generally become individually bound by executing such an agreement on behalf of a disclosed principal unless there is clear evidence that the agent intended to be bound. 4. veil piercing/alter ego In the corporate context, a nonsignatory corporation to an arbitration agreement may be bound by that agreement if the agreement is signed by its parent, subsidiary, or affiliate. 5. estoppel The doctrine of equitable estoppel is usually applied by nonsignatory defendants who wish to compel signatory plaintiffs to arbitrate a dispute. This will generally be permitted when (1) the signatory must rely on the terms of the contract in support of its claims against the nonsignatory, or (2) the signatory alleges that it and the nonsignatory engaged in interdependent misconduct that is intertwined with the obligations imposed by the contract. Therefore, this article analyzed these doctrines centering around case-law in America.

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