• Title/Summary/Keyword: Surface Orientation

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Obtaining the Surface Orientation of Texture Image using the Texture Spectrum and Mathematical Morphology (텍스처 스펙트럼을 이용한 텍스처 영상의 표면 방향 추출)

  • Kim, Do-Nyun;Cho, Dong-Sub
    • Proceedings of the KIEE Conference
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    • 1995.07b
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    • pp.989-991
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    • 1995
  • In this paper, we present a new morphological texture spectrum approach to obtain a surface orientation using the variation of texture image caused by projective distortions. Under the assumption that the surface of texture image is smooth continuous, and specially plane or sphere, we apply the mathematical morphology and texture spectrum in order to compute the 3-D surface orientation. If the surface of texture image is plane, the surface orientation can be obtained through a simple procedure. If the surface of texture image is sphere, we find the centroids of texels, and may compute several major axes, their slopes, and vanishing points. Using the texture spectrum between the intersections of the vanishing points and the size of elements in each texels, we can find the surface orientation of texels on the sphere.

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Characteristics of Surface Strand Orientation and Strand Mat Thickness Variation and Its Effect on the Bending Properties of Commercial OSB

  • Oh, Sei Chang
    • Journal of the Korean Wood Science and Technology
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    • v.36 no.2
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    • pp.56-62
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    • 2008
  • The surface and edge structure of OSB is defined by surface strand orientation and strand mat thickness variation parallel to the length of the panel using video-microscope. The bending strength of OSB was correlated with surface strand orientation and decreased with increasing the orientation angle in the direction parallel to length of the panel. Average strand mat thickness variation parallel to the length of the panel did not influence the bending strength, but the bonding characteristics among the outermost strands affects the bending strength of OSB. Hankinson formula can be used to predicts the MOE according to strand orientation in the surface of OSB, and more precise strand alignment and reducing thickness variation should be important in the structural performance of OSB panels.

The Microstructure and the Prerred Orientation of Pb-Sn-Alloy Electrodeposits in Pulse Plating (파형점류전해에 의한 Pb-Sn 합금의 현미경조직 및 우선배향)

  • 예길촌;김용응
    • Journal of the Korean institute of surface engineering
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    • v.22 no.4
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    • pp.207-214
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    • 1989
  • The surface morphology and the proferred orientation of the Pb-Sn alloy electrodeposite were investated by the change of electrolysis conditions in pulse current electroplating. The preferred orientation of Pb-phase in alloy deposits was changed in the sequence of (110)longrightarrow(100)or(100)+(111)longrightarrow(111) with increasing peak current density, while that of $\beta$-Sn phase changed from (321)+(301)to(301)+(111) mixed orientation. The surface morphology was closely related to the preferred orientation of alloy electrodeposits. The alloy deposits, which had (100)or(111) for pb-phase and (321)or(100)(301)for $\beta$-Sn sespectively, showed the surface structure of granular crystallites. The alloy deposits whih mixed orientations for both phases had microstructure of closely the closely stacked crysrallites, which was inclined to the surface.

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Study on Relations among Emotional Labor, Burnout, Engagement and Customer Orientation of High School Foodservice Employees in Busan Area (부산지역 고등학교 조리종사자의 감정노동, 직무소진, 직무관여와 고객지향성간의 관계 연구)

  • Lee, Kyung-A;Lyu, Eun-Soon
    • Korean journal of food and cookery science
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    • v.31 no.3
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    • pp.370-377
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    • 2015
  • The purpose of this study was to obtain data to improve customer orientation by managing emotional labor in foodservice employees. This study investigated the correlation between emotional labor (surface acting, deep acting), job burnout (emotional exhaustion, cynicism), and job engagement (vigor, dedication, absorption) in high school foodservice employees, and how they affect customer orientation. Our survey was administered to 330 school foodservice employees in the Busan area from June 2 to June 27, 2015. A total of 321 questionnaires were used for final analysis. The mean values for deep acting (p<0.01), cynicism (p<0.01), and dedication (p<0.05) significantly according to the position of the emproyees. The mean customer orientation significantly according to employment status (p<0.01) and meal service time (p<0.01). There was positive correlation (p<0.01) between surface acting, and emotional exhaustion cynicism, but negative correlation (p<0.01) between surface acting and vigor, dedication, absorption, and customer orientation. Deep acting had negative correlation (p<0.01) with emotional exhaustion and cynicism, positive correlation (p<0.05) with vigor, dedication, absorption, and customer orientation. Surface acting had negative influences on emotional exhaustion and cynicism, cynicism had negative influences on vigor, dedication, absorption, and customer orientation. Deep acting had positive influences on absorption and customer orientation, absorption had positive influences on customer orientation. Thus, nutrition teacher(dietitian) should educate foodservice employees the positive effects of deep acting to change their surface acting to deep acting, while actively managing internal customers.

A Study on the Deposition Characteristics of ZnO Piezoelectric Thin film Bulk Acoustic Resonator (FBAR 응용을 위한 ZnO 압전 박막의 증착 특성에 관한 연구)

  • 최승혁;김종성
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
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    • v.16 no.8
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    • pp.716-722
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    • 2003
  • ZnO thin films were deposited on Al and Pt electrodes by an RF reactive sputtering system for the fabrication of FBAR (film bulk acoustic wave resonator), and the effect of thermal treatment temperature on their c-axis preferred orientation was investigated. SEM experiments show that columnar structure of ZnO thin films were grown with c-axis normal to electrode material, and XRD experiments show that both ZnO films were grown with (002) plane preferred orientation, but larger diffraction peak was observed with Pt electrode. The peak intensity increased with higher thermal treatment temperature, but c-axis preferred orientation was diminished. The surface roughness of Al thin film was higher than that of Pt, and these affect the surface roughness of ZnO film deposited on the electrode. Though the preferred orientation with respect to Pt(111) plane was improved with higher thermal treatment temperature, this could not improve the c-axis orientation of ZnO film.

Surface Approximation Utilizing Orientation of Local Surface

  • Ko, Myeong-Cheol;Sohn, Won-Sung;Choy, Yoon-Chul
    • Journal of Korea Multimedia Society
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    • v.6 no.4
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    • pp.698-706
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    • 2003
  • The primary goal of surface approximation is to reduce the degree of deviation of the simplified surface from the original surface. However it is difficult to define the metric that can measure the amount of deviation quantitatively. Many of the existing studies analogize it by using the change of the scalar quantity before and after simplification. This approach makes a lot of sense in the point that the local surfaces with small scalar are relatively less important since they make a low impact on the adjacent areas and thus can be removed from the current surface. However using scalar value alone there can exist many cases that cannot compute the degree of geometric importance of local surface. Especially the perceptual geometric features providing important clues to understand an object, in our observation, are generally constructed with small scalar value. This means that the distinguishing features can be removed in the earlier stage of the simplification process. In this paper, to resolve this problem, we present various factors and their combination as the metric for calculating the deviation error by introducing the orientation of local surfaces. Experimental results indicate that the surface orientation has an important influence on measuring deviation error and the proposed combined error metric works well retaining the relatively high curvature regions on the object's surface constructed with various and complex curvatures.

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Evolution of Growth Orientation and Surface Roughness During Sputter Growth of AIN/Si(111) (스퍼터링 방법에 의한 AIN/Si(111)의 성장 방향과 표면 거칠기의 성장 시간에 대한 연구)

  • 이민수;이현휘;서선희;노동영
    • Journal of the Korean Vacuum Society
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    • v.7 no.3
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    • pp.237-241
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    • 1998
  • The growth orientation and the surface roughness of AIN/Si(111) films grown by radio frequency (RF) reactive magnetron sputtering were investigated using in-situ x-ray scattering technique and atomic force microscopy (AFM). AIN films were initially grown with the <001> preferred growth orientation under most growth conditions. As the film gets thicker, however, the growth orientation changes significantly, especially at high substrate temperature and high RF powers. We attribute the observed behavior to the competition between the surface energy that prefers the <001> growth orientation and the strain energy that randomizes the growth orientation. In addition, we investigated the evolution of the surface morphology during the growth using the x-ray reflectivity measurement.

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Effect of Trace Metallic Additives of Al-Fe-X on Microstructure and Properties of Zn Electrodeposits (아연도금층의 조직 및 물성에 미치는 미량금속원소(Al-Fe-X)의 복합첨가의 영향(I))

  • 예길촌;김대영;서경훈;안덕수
    • Journal of the Korean institute of surface engineering
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    • v.36 no.6
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    • pp.444-454
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    • 2003
  • The effect of trace metallic additives of Al-Fe-X on microstructure, glossiness and hardness of Zn electrodeposits was investigated by using sulfate bath. The preferred orientation of Zn deposits with Al-Fe additives was (10 l)(l:3,4,2), while that of Zn deposits with Al-Fe-X(Ni,Co) additives was either (002) or (002)+(103)ㆍ(104) mixed orientation. The preferred orientation of Zn deposits with Al-Fe-Cr additives changed from (002)+(10 l) to (10 l) orientation with increasing amount of Al additive. The surface morphology of the Zn deposits was closely related to the preferred orientation of the deposits. The glossiness of Zn deposits with Al-Fe additives increased in comparison with that of pure Zn deposit. That of the Zn deposits with Al-Fe-X additives was related to the morphology of the deposits and changed according to type of additives. The hardness of Zn deposits with Al-Fe-X(Ni,Co,Cr) additives was noticeably higher than that of Zn deposits with Al-Fe additives.

An Experimental Study on Boiling Heat Transfer of PF5060 on the Shape and Orientation of Micro-Fin Surfaces (마이크로휜 표면과 발열체 기울기에 따른 PE5060의 비등 열전달에 관한 실험적 연구)

  • Kim Yoon-Ho;Kim Choong;Lee Kyu-Jung;Kim Youngchan
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.30 no.1 s.244
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    • pp.74-81
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    • 2006
  • Experiments to measure the pool boiling heat transfer on the micro-fin surfaces were performed with PF5060. The effects of various orientation and subcooling of heat surface on pool boiling performance were investigated under various heat-flux conditions for plain and micro-fin surfaces. The comparison between the results of this study and those of previous work shows a similar trend at the same conditions. From the results, it is proved that nucleate boiling performance is strongly dependent on the orientation, the micro-fin structure and the subcooling of heat surface. The heat flux on the surface with orientation angles of $45^{\circ}$ and $90^{\circ}$ was larger than that on horizontal surface(${\theta}=0^{\circ}$) at same wall superheat because of the effect of bubble sweeping. The nucleate boiling performance of micro-fin surfaces is enhanced by decreasing the fin size(WxL) and the pitch, respectively. The subcooling makes nucleate boiling performance lower for both micro-fin and plain surfaces.

Effect of KORAIL Tour Conductors' Emotional Labor on Customer Orientation: Moderating Effect of Perceived Organizational Support (철도여행인솔자의 감정노동이 고객지향성에 미치는 영향 - 조직지원인식의 조절효과 -)

  • Hur, Chan-Young;Kim, Tae-Seong
    • Journal of the Korean Society for Railway
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    • v.17 no.4
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    • pp.289-296
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    • 2014
  • This study analyzes, based on survey of the behavior of 288 railroad tour conductors. how deep acting and surface acting, which were both classified as emotional labor, influence customer orientation. It also analyzes the moderating effect of POS (perceived organizational support) on emotional labor and customer orientation. The following are the summarized results of the analysis. First, railroad tour conductors' deep acting has a positive influence on customer orientation. And surface acting has a negative effect on it. Second, after the moderating effect of POS has been studied, it is found that POS does not appear to have a moderating effect on customer orientation of deep acting but does appear to have a moderating effect on customer orientation of surface acting. In conclusion, this study implies that it is important, to railroad tour conductors, that organizational level support enhance customer orientation; it is also important to manage railroad tour conductors' emotions in order to enhance customer orientation.