• Title/Summary/Keyword: Breadth

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A Comparative Study on Determinant Methods for Body Frame Size of the Elderly (노인의 골격크기 결정방법에 관한 비교조사연구)

  • 한경희
    • Korean Journal of Rural Living Science
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    • v.5 no.2
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    • pp.117-123
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    • 1994
  • The purpose of this study was to establish the range of the body frame size determination for elderly subjects. Anthropometric data were collected from over 60 years old 229 elderly peoples. Three methods for determining frame size were to measure elbow breadth, ankle breadth, and height to wrist circumference ratio. Among the three variables, ankle breadth exhibited the lowest correlation with skinfold thickness and changed little with age. A pairwise comparision among three methods for determining frame size showed that the highest incidence of overall agreement was achieved when the ankle breadth and elbow breadth were compared. This analysis supported that ankle breadth can be used as an indicator of frame size. Small, medium and large categories of ankle breadth were presented depending on whether the measurements were below the 15th, between the 15th and 85th, and above the 85th percentile for ankle breadth.

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AN ESTIMATE OF THE AREA OF CONSTANT BREADTH CURVES

  • Chai, Y.D.;Kim, Yong-Il
    • Communications of the Korean Mathematical Society
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    • v.12 no.3
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    • pp.679-683
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    • 1997
  • We obtain new upper bound of the area of a constant breath curve. We estimate the area of a constant breadth curve in terms of its breadth and minimal radius and the arc length of its pedal curve.

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The Change of Half Value Breadth and Residual Stress during Fatigue Process in S45C Steel (S45C강의 피로과정에 대한 반가폭 및 잔류응력의 변화)

  • Boo, Myung-Hwan;Koo, Hoo-Taek;Jeong, Jong-Hyun;Park, Young-Chul;Kim, Byeong-Soo;Kim, Young-Suk
    • Proceedings of the KSME Conference
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    • 2001.06a
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    • pp.591-596
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    • 2001
  • The purpose of this study is to examine the change of half value breadth and residual stress during fatigue process in S45C Steel by X-ray diffraction. For S45C Steel, the relationship between the change in fatigue damage of the specimen and the half value breadth, and residual stress of X-ray diffraction profiles during the fatigue processes has been investigated. The half value breadth(HVB) decreases in he early period of fatigue cycle. The change of HVB is relation to cyclic work hardening. In $10{\sim}20%$ of ratio of fatigue life, the change in the half value breadth is not marked. During fatigue process, the residual stress is changed with fatigue cycle increasing.

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The Recovery Phenomena of the Cold Worked Pure Zirconium

  • Jung, Dae-Young;Yoon, Jong-Kyu
    • Nuclear Engineering and Technology
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    • v.7 no.1
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    • pp.15-23
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    • 1975
  • In the ,present study, recovery behaviour of cold compressed pure zirconium was investigated by the measurement of X-ray line breadth and microhardness. By isochronal annealing, it was found that both hardness and X-ray line breadth do not show remarkable decrease below 300"e. It was also found that at the same degree of cold work, the rate of recovery of X-ray line breadth is different from that of hardness, and that regardless of cold working degrees, activation energy for the recovery of X-ray line breadth is less than that of hard ness. Activation energies for recovery of X-ray line breadth in 8%, 19% and 28% cold worked zirconium were 64,800 cal/gram atom, 56,400 cal/gram atom and 48,500 cal/gram atom, respectively, and those of hardness were 72,800 cal/ gram atom, 64,300 ca1/9ram atom and 58,600 ca119ram atom, respectively.vely.

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A Novel Decoding Scheme for MIMO Signals Using Combined Depth- and Breadth-First Search and Tree Partitioning (깊이 우선과 너비 우선 탐색 기법의 결합과 트리 분할을 이용한 다중 입출력 신호를 위한 새로운 최우도 복호 기법)

  • Lee, Myung-Soo;Lee, Young-Po;Song, Iick-Ho;Yoon, Seok-Ho
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.36 no.1C
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    • pp.37-47
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    • 2011
  • In this paper, we propose a novel ML decoding scheme based on the combination of depth- and breadth-first search methods on a partitioned tree for multiple input multiple output systems. The proposed scheme first partitions the searching tree into several stages, each of which is then searched by a depth- or breadth-first search method, possibly exploiting the advantages of both the depth- and breadth-first search methods in an organized way. Numerical results indicate that, when the depth- and breadth-first search algorithms are adopted appropriately, the proposed scheme exhibits substantially lower computational complexity than conventional ML decoders while maintaining the ML bit error performance.

Effects of Product Number and Brand Breadth on the Evaluations of an Extended Product

  • Yeu, Minsun;Yuk, Hyeyeon;Kim, Boha;Yoo, Jung-Hyun;Cho, Seong Wan;Yeo, Junsang;Park, Chan Su
    • Asia Marketing Journal
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    • v.15 no.3
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    • pp.97-115
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    • 2013
  • This paper was motivated by two gaps in the extant literature on brand portfolio planning. First, research has shown that, as the number of products connected to a brand increases, the extended product receives more favorable evaluations. However, this result was obtained by comparing two brands with different number of products while controlling the brands' breadths. Hence one may question if the above result would hold when the brand is narrow as well as broad. Second, the literature has investigated the effect of brand breadth on the perceived fit and evaluations of an extended product within a relatively limited range ("narrow vs. broad") and not considered the case of a "very broad" brand. To address these gaps, we propose two hypotheses: 1) the effects of the number of products associated with a brand on the perceived fit and evaluations of a moderately far brand extension are moderated by the brand's breadth (H1); and 2) the relationship between a brand's breadth and a moderately far extension's perceived fit and evaluations looks like an inverse-U shape (H2). Study 1 was conducted to test H1. Study 1 employed a 2 × 2 within-subjects design in which the first factor was the number of products (small (2) or large (5)), and the second factor was brand breadth (narrow or broad). We measured brand breadth as the perceived similarity among products associated with a brand. Participants provided the perceived fit and evaluations of an extended product. Study 2 was conducted to test H2 as well as to replicate Study 1 in a more general setting and with different products. It employed a 2 × 3 within-subjects design, in which the first factor was the number of products (small (2) or large (5)), and the second factor was brand breadth (narrow, broad, or very broad). The results from two experiments support both hypotheses. This paper contributes to the literature on brand extensions in two ways. First, it broadens our understanding of the effects of product number and brand breadth on extended product evaluations by considering the two factors jointly. Second, we believe this study to be the first to present evidence that brand breadth can exert an inverted U-shape effect on the perceived fit and evaluations of an extended product. The results also offer implications for marketers. First, marketers should heed the finding that adding similar products to a narrow brand does not help the brand's extension launch. Second, the finding that the relationship between brand breadth and extended product evaluations might not be linear provides practical implications. While a narrow brand should not keep launching close extensions, nor should a broad brand continue producing far extensions to broaden its breadth. A firm with a broad corporate or family brand might want to consider introducing a new brand instead of adding dissimilar products under the brand umbrella.

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INEQUALITIES FOR THE AREA OF CONSTANT RELATIVE BREADTH CURVES

  • Kim, Yong-Il;Chai, Y.D.
    • Bulletin of the Korean Mathematical Society
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    • v.36 no.1
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    • pp.15-23
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    • 1999
  • We obtain an efficient upper bound of the area of convex curves of constant relative breadth in the Minkowski plane. The estimation is given in terms of the Minkowski are length of pedal curve of original curve.

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Discussion on Hardness Measuring of Bearing Steel by X-ray Diffraction (X선회절에 의한 베어링강의 경도측정에 대한 고찰)

  • 이한영
    • Tribology and Lubricants
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    • v.18 no.3
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    • pp.187-193
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    • 2002
  • The half-value breadth off-ray diffraction profile line is generally used for a factor in nondestructive hardness measuring method of steel. In this paper, the problem in using the half-value breadth for the hardness measuring method is evaluated in strain hardened steel. And new hardness measuring method using residual stress is proposed X-ray diffraction test after rolling contact fatigue test of ball bearing with inner race of various hardness are carried out to measure the distribution of residual stress and half-value breadth from surface. The result of this study shows that there is little correlation between half-value breadth and hardness in the higher strength region and in the region increasing the hardness by strain hardening. But the magnitude of residual stress on/under race after rolling contact fatigue test becomes clearly to be correlative with hardness. Thus, it is concluded that the hardness of strain hardened steel can be estimated by this relationship between residual stress and hardness.

Anthropometric Study on Facial Shape Analysis of Female College Students (여대생의 얼굴형태 분석을 위한 계측적 연구)

  • 김혜수;이경화
    • Journal of the Korean Home Economics Association
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    • v.42 no.7
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    • pp.165-178
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    • 2004
  • The purpose of this study is to research the facial shape and suggest quantified data for the domestic fashion cordinaton and beauty industry. A measurement survey of 264 female college students aged from 20 to 24, was conducted with photographs of front view and later view taken by digital camera. Two hundred values were generated through the facial measurement program. In the results, for the coefficient of variance of the height was highly related with height, radial length was highly related with radial length, and breadth with highly related with breadth. However Gnation breadth, Zygomatic breadth, Philtrum breadth were lowly related and indefendent with other items.

External Open Innovation Strategy and Innovation Outcome in SMEs (중소기업의 개방형 탐색 전략과 혁신활동)

  • Yang, Ji Yeon;Roh, Tae Woo
    • Knowledge Management Research
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    • v.16 no.4
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    • pp.1-16
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    • 2015
  • This paper aims to explore the small and medium sized enterprises'(SMEs') technological innovation through an open innovative strategy. Researchers have identified open innovation as external search 'breadth' and 'depth'. Although an open innovation strategy is well known as an effective way for SMEs' innovation, this stream of research examines differences between pursuing breadth of external knowledge and depth of external knowledge for SEMs' innovation. The sample comprises a total of 1106 SMEs included in the Korean Innovation Survey, and logistic regression analysis and odds ratio comparison were used to evaluate the relationship between external knowledge search and innovation outcomes. The results show that both 'breadth' and 'depth' positively affect the SMEs' innovation. When SMEs are simultaneously pursuing external searching for breadth and depth, however, a negative result on innovation outcome followed because of the lack of their internal resources and capacities. Despite these contributions, we have certain limitations that can be regarded as means of future research. Even though breadth and depth are adopted to measure the way of how a firm sources the external knowledge, companies may place the different weight on each source of knowledge. And also, it is difficult to understand how the knowledge gained through external search contributes to a firm's incremental and radical innovation, respectively.