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A Study of the Physical Properties of Single Wall Dual-layer Medium Corrugated Board (강심골판지의 물성에 관한 연구)

  • Lee, Soo-Keun;Kim, Jai-Neung
    • KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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    • v.10 no.1
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    • pp.47-54
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    • 2004
  • Normally, the single wall(SW) corrugated board has more advantages than double wall (DW) corrugated board in terms of the cost of the materials and logistics. For instance, the SW corrugated board has 3 layer papers whereas the DW corrugated board has 5 layer papers. The thickness of the SW is about 5mm, but that of the DW is 8mm. Accordingly, the SW corrugated board is quite more used in the developed countries than the DW corrugated board. But in Korea, the DW corrugated board is quite more used. The reason why more DW corrugated board are used than the SW corrugated in Korea is that in order that the SW corrugated board has the same box compression strength as DW corrugated board, the cost of the SW corrugated board is higher than that of the DW corrugated board because the virgin kraft liners are all imported from overseas. In this study, the physical properties such as flat crush strength and column crush strength of typical SW corrugated board and single wall dual-layer medium corrugated board and their costs were analyzed. The analysis resulted in that single wall dual-layer medium corrugated board has the same thickness as the SW corrugated board but the more flat crush strength and column crush strength and the less cost than the SW corrugated board.

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A Study on the Resistance Performance of 39feet-class Leisure Boat with Propulsion Type of In-Board and In.Out-Board Engine (39feet급 선내기.선내외기 추진방식 레저보트의 저항특성 연구)

  • Park, Chung-Hwan
    • Journal of Advanced Marine Engineering and Technology
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    • v.32 no.8
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    • pp.1208-1214
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    • 2008
  • The propulsion type of a small boats mainly were divided that the In-board and In out-board position located engine. The boats of the In-board and In out-board engine individually were propelled by propeller and stern drive. In this paper, 39feet-class leisure boats with propulsion type of In-board and In.out-board engine were performed to compare the effect of resistance performance using model test. As a result, leisure boat with In out-board engine is ascertained the optimum boat affects the speed and fuel efficiency.

Examination of Board Independence and Board Involvement: The Role of Information Provision and Sharing (이사회 독립성과 이사회 관여: 정보 제공 및 공유를 중심으로)

  • Yoon, Hyunjoong
    • Knowledge Management Research
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    • v.17 no.4
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    • pp.105-127
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    • 2016
  • There is a growing awareness about the role of the board of directors in decision making, which is crucial to vitalize board activities in Korean firms. Given the academic and social needs, the current study is designed to identify the relationship between board independence and the board involvement of directors, highlighting the important aspects of information provision from diverse channels and information sharing among external directors. In this study, I include not only traditional variables to address the structural independence of the board but also the information provision and information sharing variables to explain how external directors, on average, are involved in board decisions. The research results from 136 Korean business samples show positive relationships between board independence and board involvement, but the influence of information provision and sharing proves to be significant in increasing the level of the board involvement of external directors. These findings suggest that active communication and information sharing among external directors, as well as an independent structural design for the board of directors, are important factors to improve the level of board involvement. Based on these results, the current paper provides theoretical and practical implications for corporate governance and knowledge management. Future research directions and limitations are also discussed.

Buckling Analysis of Corrugated Board using Finite Element Method (유한요소법에 의한 Corrugated Board의 휨 발란스 해석)

  • 박종민
    • Journal of Biosystems Engineering
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    • v.28 no.2
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    • pp.127-136
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    • 2003
  • The top-to-bottom compression strength of corrugated board box is the most important mode of loading during it's no, and it depends largely on the edgewise compression strength of the corrugated board in the cross-machine direction and to a considerable extent on the flexural stiffness in both principal directions (CD; cross-machine direction, MD; machine direction) of the corrugated board. Corrugated board is a sandwich structure with an orthotropic property. The purpose of this study was to elucidate the principal design parameters for board combination of corrugated board from the viewpoint of bending strength through the finite element analysis [FEA] fur the various corrugated board. In general, the flexural stiffness [FS] in the MD was 2-3 times larger than that in the CD, and the effect of liner for the FS of corrugated board was much bigger than that of corrugating medium. The flexural stiffness index [FSI] was high when the stiffness of liner was in the order of inner, outer, and middle liner in double-wall corrugated board [DW], and the effect of the stiffness arrangement or itself reinforcement of corrugating medium on the FSI was not high. In single-wall corrugated board [SW] with DW. the variation of FSI with itself stiffness reinforcement of liner was much bigger than that with stiffness arrangement of liner. The highest FSI was at the ratio of about 2:1:2 for basis weight distribution of outer, middle, and inner liner if the stiffness of liner and total basis weight of corrugated board were equal in DW Secondarily. basis weight was in the order of inner, outer, and middle liner. However, the variation of FSI with basis weight distribution between liner and corrugating medium was much bigger than that with itself basis weight distribution ratio of liner and corrugating medium respectively in both DW and SW. md the FSI was high as more total basis weight was divided into liner. These phenomena fur board combination of corrugated board based on the FEA were well verified by experimental investigation.

A Study of Board Function Effectiveness and Organizational Performance in Korean Community Chest Organizations (복지 비영리 조직의 이사회 기능 효과성과 조직성과에 관한 연구 : 한국사회복지 공동모금회를 중심으로)

  • Kang, Chul-Hee;Kim, Hee-Sung
    • Korean Journal of Social Welfare
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    • v.44
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    • pp.7-35
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    • 2001
  • Little empirical study has been conducted concerning board function effectiveness and organizational performance in nonprofit nongovernmental human service organizations in Korea. Using the evaluations of 107 board members and 17 executive directors in Korean Community Chest and 16 regional community chests, this study attempted to examine the level of board function effectiveness and its relationship with organizational performance in these community chests. This study used board function scale developed by Holland and Jackson (1998) to measure board function effectiveness in the following 6 dimensions: contextual dimension: educational dimension: interpersonal dimension: analytical dimension: political dimension: and strategic dimension. This study showed that using 4 points scale, mean of overall board function effectiveness evaluated by board members is 2.62 and mean of overall board function effectiveness evaluated by executive directors is 2.73. That is, it showed that means of overall board function effectiveness are located in the middle point between negative evaluation and positive evaluation. On the other hand, using parametric correlation analysis method, it was found that in these community chests the association between board function effectiveness and organizational performance measured by fund-raising growth rate in $1999{\sim}2000\;and\;1998{\sim}2000$ is very weak and statistically nonsignificant. This study also revealed that using nonparametric correlation analysis method, the association between consensus level in evaluation by board members and executive directors about board function effectiveness, and organizational performance is still very weak and statistically nonsignificant. Finally, this study discussed the direction of future research in board function effectiveness and its relationship with organizational performance and the areas of board management that requires substantial efforts for promoting effectiveness of nonprofit human service organizations in Korea.

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Evaluation of the efficiency of the Vac-lock type belly board in Pelvic cancer Radiation Treatment (골반부 방사선치료 시 자체 제작한 Vac-lock type belly board에 대한 유용성 평가)

  • Kim, YoungYeun;Bang, Seungjae;Jung, Ilsun;Kim, Jungsu;Kim, YoungKon
    • The Journal of Korean Society for Radiation Therapy
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    • v.26 no.1
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    • pp.37-42
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    • 2014
  • Purpose : At the time of the pelvis cancer radiation treatment using the belly board, set-up error is large because of a prone position. In order to improve the reproducibility, we made Vac-lock type belly board. In this study, we attempt to validate its utility. Materials and Methods : We compared belly board and Vac-lock type belly board through the OBI. OBI was performed three times with entire course of treatment and the setup errors in the direction of X axis, Y axis, Z axis were recorded and calculated the distance from the isocenter. Results : X axis, Y axis, Z axis setup errors with existing belly board were 0.32 cm, 0.41 cm, 0.29 cm. The setup errors with the vac-lock type belly board were 0.12 cm, 0.19 cm, 0.17 cm. Further, errors of 0~0.29 cm were increased from 48% to 83% when using VLT belly board. Error of 0.5 cm or more was reduced from 21% to 2%. Conclusion : Vac-lock type belly board is able to maintain the efficacy of existing and create to match the characteristics of the patient. Therefore We think that vac-lock type belly board is very useful in pelvic cancer patients.

A Study on the Bearing Capacity of Steel Composite Concrete Lining Board (강합성 콘크리트 복공판의 내력시험에 관한 연구)

  • Paik, Shinwon;Kim, Yongon
    • Journal of the Korean Society of Safety
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    • v.27 no.6
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    • pp.122-126
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    • 2012
  • Steel lining board usually is used as a floor on the temporary steel bridges. It also is installed in the subway construction site. However, in particular in subway construction, renovations and site of old bridges, these steel lining board structures have a problem such as noise, accidents and slip hazards. So steel composite lining board is being developed to solve this problem. Steel composite lining board consists of compressive concrete showing excellent performance in slip, durability, resistance and noise, lower tensile and shear steel showing high safety, effective and superior workability in many respects. Steel composite lining board structure gradually is used in many construction sites, because it has a high quality such as durability, little noise and slip. In this study, flexural tests of steel composite lining board in accordance with welding patterns were conducted to compare the performance of the structure.

The Effect of Ownership and Independence of Board of Directors on Corporate Performance in China (이사회 소유지분과 독립성이 중국 상장기업성과에 미치는 영향)

  • Gu, Wei-Jie;Lee, Soon-Hee
    • Asia-Pacific Journal of Business
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    • v.13 no.1
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    • pp.89-102
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    • 2022
  • Purpose - We examine empirically the relationship between the board of directors and the corporate performance using board characteristics related variables. Design/methodology/approach - We empirically test the hypotheses using fixed effects models (FEM), using data of 3,703 listed non-financial companies in China from 2010 to 2019. Findings - First, the ownership of board of directors is positively related to ROA. Second, the size of the board of directors is positively related to ROA. Third, there is no evidence that interaction between characteristic variables related to the board of directors affect the corporate performance. Research implications or Originality - These results show that as the board of directors has larger ownership, the degree of identity of interest between stock holders and the board becomes bigger to reduce agency cost, then it lets the board make decisions to improve the corporate performance. In addition, as the board of directors becomes bigger, the board has strong independence to play the role of monitoring and advising, then it leads to improvement of corporate performance.

A Study on the Physical and Mechanical Properties of the Board Composed of Wood Particle and Steel Wire (목재(木材)파아티클과 철선복합(鐵線複合)보오드의 물리적(物理的) 및 기계적(機械的) 성질(性質)에 관(關)한 연구(硏究))

  • Park, Heon
    • Journal of the Korean Wood Science and Technology
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    • v.16 no.3
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    • pp.22-37
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    • 1988
  • In tendancy of manufacturing beam with laminating particleboard, it was thought that if the properties, especially mechanical properties, of particleboard be reinforced, the mechanical properties of particleboard-laminated beam would be also improved. So in this study the particleboard was reinforced with composing of wood particle and steel wire. This study was carried out to obtain the basic physical and mechanical properties of board composed of wood particle and steel wire, especially tensile strength and compressive strength which are the important factors of the lamina of beam, in order to estimate whether the board, composed of wood particle and steel wire could be to improve the properties of the particleboard- laminated beam. The results obtained were summarized as follows: 1. The board composed of wood particle and steel wire in accordance with lower board density took better thickness swelling. 2. The board with lower board density was improved in higher value of tensile strength with more steel wires in prescribed cross section area of the board. for example, the board of density 0.5 showing 140% improved value. 3. In compressive strength, the board with lower board density was also improved in hjgher value with more steel wires in prescribed cross section area.

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Board Governance and Bank's Performance: Does Size Matter?

  • ALAM, Atia;ABBAS, Syeda Fizza;HAFEEZ, Ameena
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.11
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    • pp.817-825
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    • 2020
  • Over the last few decades, corporate frauds have highlighted the significance of corporate governance in deriving firm performance. By using different sample data, extensive research has examined how corporate governance structure influences firm's profitability, but limited research was undertaken on the banking sector of Pakistan. This research adds to the literature by testing how board structure derives bank's performance by using sample data of 19 banks for the period from 2010 to 2017. In addition, the study analyzes the controlling part of size on the link between board governance and bank performance. Findings reveal that banks having small board size, fewer non-executive directors and minimum activity level perform better. Analysis related to bank size illustrates that board size has value in increasing benefits in large size banks in contrast to small size one, while higher participation by board members enhances performance of small size banks more. The correlation results and findings showed that there existed no multicollinearity issue between independent variables. Board size showed positive correlation with the market variable, while board activity tended to correlated negatively with the market performance. Inverse correlation between board size and independent directors indicated that Pakistani banks with greater board size had fewer independent directors.