• Title/Summary/Keyword: Direction-oriented

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A Deinterlacing Method Based on the Edge Direction Vectors (에지 방향 벡터 기반 디인터레이싱 기법)

  • Lee, Kwang-Bo;Park, Sung-Han
    • 전자공학회논문지 IE
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    • v.45 no.4
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    • pp.47-53
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    • 2008
  • A new intra-field deinterlacing algorithm with edge direction vector (EDV) in the image block is introduced. This proposed filter is suitable to the region with high motion or scene change. We first introduce an EDV, which is computed by Sobel mask used edge map, so that filer resolution of the edge direction can be acquired. The proposed EDV oriented deinterlacing system operates by identifying small pixel variations in five orientations, $26.5^{\circ}$, $45^{\circ}$, $90^{\circ}$, $135^{\circ}$, and $153.5^{\circ}$. The EDV values work as inputs of Sobel mask and return edge direction degree and confidence parameters. Based on edge direction degree and confidence parameters the missing pixel is computed. The results of computer simulations demonstrate that the proposed method outperforms a number of intra-field deinterlacing methods in the literature.

Buckling of cylindrical shells under external pressure proposition of a new shape of self-stiffened shell

  • Araar, M.;Jullien, J.F.
    • Structural Engineering and Mechanics
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    • v.4 no.4
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    • pp.451-460
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    • 1996
  • We propose a new shape of cylindrical shell formed by multiples vaults which gives a self-stiffening against buckling. By an experimental and numerical study of cylindrical shells with a repeated defect, on the circumferential direction made only of outside oriented wave-defects, we show that multiple vault cylindrical shells can have a good behaviour in buckling. An optimal behaviour is obtained by optimization of the vaults number, with conduces to a special multiple vault cylindrical shell named "ASTER shell".

Growth of Rutile Single Crystal by Floating Zone Method (Floating Zone법에 의한 Rutile($TiO_2$)단결정 육성)

  • 신재혁;강승민;오근호
    • Journal of the Korean Ceramic Society
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    • v.27 no.8
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    • pp.1050-1054
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    • 1990
  • Rutile(TiO2) single crystals were grown by FZ method. Feed rod was sintered in the longitudinal tube-shaped furnace at 135$0^{\circ}C$ and optimum growth condition was growth rate 5-8mm/hr, rotation rate 30-40rpm. When crystal was growing, atomosphere was oxidized condition, and grown single crystal was annealed at 110$0^{\circ}C$. The rutile single crystals were oriented to [001] direction and color change of single crystals were related to atmosphere, and difference of electric conductivity and resistance was due to the fact above.

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AN IMPLEMENTATION OF WEIGHTED L$_{\infty}$ - METRIC PROGRAM TO MULTIPLE OBJECTIVE PROGRAMMING

  • Lee, Jae-Hak
    • The Pure and Applied Mathematics
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    • v.3 no.1
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    • pp.73-81
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    • 1996
  • Multiple objective programming has been a popular research area since 1970. The pervasiveness of multiple objective in decision problems have led to explosive growth during the 1980's. Several approaches (interactive methods, feasible direction methods, criterion weight space methods, Lagrange multiplies methods, etc) have been developed for solving decision problems having multiple objectives. However there are still many mathematically challengings including multiple objective integer, nonlinear optimization problems which require further mathematically oriented research. (omitted)

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Review of Research on Nursing Organizational Culture in Korea (간호 조직문화에 대한 국내 간호연구 고찰)

  • Park, Kwang-Ok;Park, Sung Hee;Yu, Mi
    • The Journal of the Korea Contents Association
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    • v.14 no.2
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    • pp.387-395
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    • 2014
  • The authors reviewed research related to nursing organizational culture in order to determine the direction for future research, as well as the current status of nursing organizational culture. Research that analyzed nursing organizational culture were selected from journal articles in Korea and were reviewed. A total of 30 articles were collected. The number of studies on nursing organizational culture has shown a rapid increase since the late 1990s. Most research studies used a non-experimental design. The most frequently used organizational culture model and instrument was the competing values model defining culture pattern, which consists of relation-oriented, innovation-oriented, hierarch-oriented, and task-oriented culture. Other factors showing correlation with nursing organizational culture included job satisfaction, effectiveness, and so on. These results will be used to provide basic data for nursing leaders. In Korea, the next phase of research on organizational culture will require use of various approaches and research methods.

A Study on a Project-based Blockchain Web Developer Education Model Customized for Companies (기업 맞춤형 프로젝트 기반 블록체인 웹 개발자 교육모델에 관한 연구)

  • Lee, Keun-Ho
    • Journal of Internet of Things and Convergence
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    • v.8 no.4
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    • pp.77-83
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    • 2022
  • In the era of the 4th industrial revolution, various universities' corporate field application education models are being presented. In particular, along with new teaching methods, various educational models for customized education of many companies are being studied, increasing their usability. Research on project-oriented teaching methods for competencies required in the field of business is the most developed field in recent years. In this study, we intend to propose a case-oriented curriculum model that applies the project-oriented teaching method to the requirements of these companies. In particular, we design an industry-oriented curriculum model through a companycustomized education model for blockchain and web developers, and suggest the direction of development focusing on examples of the operation process. The model through this case was designed and operated as a curriculum model suitable for the field through in-depth interviews with industries, etc.

ELECTRICAL FISHING METHOD OF PENAEUS JAPONICUS BATE (보리새우의 전기 어법)

  • KO Kwan Soh;KIM Sang Han;YOON Gab Dong
    • Korean Journal of Fisheries and Aquatic Sciences
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    • v.5 no.4
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    • pp.115-120
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    • 1972
  • The data Presented in this Paper, on the body and Jumping voltage of Penaeus japonicus BATE, are part of a current study on shrimp behaviour in order to improve fishing efficiency of the fishing gear. The experiments concerning electrical stimuli was mostly carried out at the Marine Laboratory of Busan Fisheries College in 1972. The following are the results obtained from the present investigations : 1. When the voltages between a pair of electrodes were fixed constant, the voltage drops between them showed almost constant electrical field. 2. Threshold voltages of the animals varied with body direction to the electrical field, i. e., 200 -500 mV for parallel, 500-1400 mV for vertical and 300-800 mV for diagonal ($45^{\circ}$) settings. 3. Jumping voltages of the animals also varied with the body direction to the electrical field; i. e., 250-1000 mV for parallel, 800-2500 mV for vertical and 400-1300 mV for diagonal settings. 4. The shrimp, in general, were more sensitive to the electrical stimuli when oriented to the cathode rather than the anode. 5. Jumping voltages decreased when the interrupted current was applied to the animals, i. e., less than 200 mV for paralled and 500mV for vertical direction of the body to the electrical field.

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Unusual Orientation of cDNAs Found in a cDNA Library

  • Lee Jeongyeo;Song Hayoung;Lim Yong-Pyo;Hur Yoonkang
    • Journal of Plant Biotechnology
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    • v.7 no.1
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    • pp.51-55
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    • 2005
  • Many cloning vectors in which cDNAs can be inserted to the sense orientation have been developed. Uni-ZAP XR vector (Stratagene) should contain clones that are oriented to sense direction with respect to T3 RNA polymerase primer. Unexpectedly, large portions of cDNAs in Chinese cabbage cDNA library showed unusual insertions, antisense orientation and a hybrid of two different clones. Using two clones, 4H03 and 53-B10, derived from different cDNA libraries, we proposed and demonstrated the possibility of unusual-construct formation by in vitro translation and northern blot analysis. The 4H03 clone was inserted with inverse direction, and its transcript and translation product could be produced by T7 RNA polymerase, indicating that this clone is definitely inserted into inverse orientation. The 53-B10 that contains two independent genes was turned out to be a hybrid in which two genes are inserted to opposite direction each other. All unusual constructs might be due to the presence of small fragments of DNA, like adapter. However, the mechanism underlined the formation of unusual constructs is still remain to be solved.

A Study on the Characteristic of Site Planning of Hadrian's Villa (하드리안 별장에서의 배치계획의 특성에 관한 연구)

  • Kim, Seok-Man
    • Journal of architectural history
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    • v.25 no.1
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    • pp.7-21
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    • 2016
  • The purpose of this paper is to study on the characteristic of site planning of Hadrian's villa. The whole site planning of Hadrian's villa can be divided by different characteristic four groups(I-IV). It is analysed to the whole site plan of such huge complex and the site planning of partial each group which is organically connected each other. The results of this study are as follows: 1. Hadrian's villa was arranged in adapt to natural condition according to a gentle inclination by topography and terrain of the whole site which many different buildings are oriented towards natural landscape of the site and the site surroundings. 2. The site planning of Hadrian's villa is composed of dividing into four groups as plan segmentalized through various land use plan, considering for territory of functional aspect and direction of axis formed by situation and direction of topography and terrain. 3. The concept of site planning to buildings of Hadrian's villa is composed through each other connection; the first, meeting, crossing and merging with each other from arrangement by several axises, the second, change of direction with as the center a part of corner of buildings and the third, facing or inserting system to side and side, side and a part of corner of building.

Shear response estimate for squat reinforced concrete walls via a single panel model

  • Massone, Leonardo M.;Ulloa, Marco A.
    • Earthquakes and Structures
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    • v.7 no.5
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    • pp.647-665
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    • 2014
  • Squat reinforced concrete walls require enough shear strength in order to promote flexural yielding, which creates the need for designers of an accurate method for strength prediction. In many cases, especially for existing buildings, strength estimates might be insufficient when more accurate analyses are needed, such as pushover analysis. In this case, estimates of load versus displacement are required for building modeling. A model is developed that predicts the shear load versus shear deformation of squat reinforced concrete walls by means of a panel formulation. In order to provide a simple, design-oriented tool, the formulation considers the wall as a single element, which presents an average strain and stress field for the entire wall. Simple material constitutive laws for concrete and steel are used. The developed models can be divided into two categories: (i) rotating-angle and (ii) fixed-angle models. In the first case, the principal stress/strain direction rotates for each drift increment. This situation is addressed by prescribing the average normal strain of the panel. The formation of a crack, which can be interpreted as a fixed principal strain direction is imposed on the second formulation via calibration of the principal stress/strain direction obtained from the rotating-angle model at a cracking stage. Two alternatives are selected for the cracking point: fcr and 0.5fcr (post-peak). In terms of shear capacity, the model results are compared with an experimental database indicating that the fixed-angle models yield good results. The overall response (load-displacement) is also reasonable well predicted for specimens with diagonal compression failure.