• Title/Summary/Keyword: DEEP

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The Effects of Compassion experienced by defectors on Job Performance and organizational citizenship behavior : Mediating Effect of Deep Acting (탈북민들이 경험하는 컴페션이 직무성과와 조직시민행동에 미치는 영향: 심층행동의 매개효과)

  • Ko, Sung-Hoon
    • Journal of Digital Convergence
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    • v.16 no.11
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    • pp.177-183
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    • 2018
  • The purpose of this study is to examine the effects of compassion experienced by defectors on deep acting in organization and secondly to demonstrate the effect of deep acting through compassion on job performance. Third, the purpose of this study is to examine the effects of deep acting on organizational citizenship behavior. Fourth, we examine the mediating effect of deep acting in the relationship between compassion and job performance. Finally, we try to demonstrate the mediating effect of deep acting in the relationship between compassion and organizational citizenship behavior. As a result of this study, it was proved that compassion experienced by defectors has a positive effect on deep acting and that deep acting has a positive effect on job performance and organizational citizenship behavior. In addition, all hypotheses were supported by the findings of research on the mediating effect of deep acting in the relationship between compassion and job performance, and compassion and organizational citizenship behavior. Thus, this study implies that the defectors who need compassion in the organization improve their job performance and increase organizational citizenship behavior through deep acting.

Experimental study on the severe deep drawing for complex cylindrical housing of STS 305 stainless steel (스테인리스 강 STS305의 디프 드로잉 가공에 관한 실험적 연구)

  • Kim, Doo-Hwan
    • Transactions of Materials Processing
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    • v.7 no.5
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    • pp.439-444
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    • 1998
  • Recently many automotive parts have been made with stainless steels by deep drawing processes, But there are various problems occurred in deep drawing works of stainless steels compared with low carbon steels. For the severe deep drawing of complex cylindrical housing optimum process planning is required to eliminate intermediate annealing improve shape accuracy and maintain surface integrity without drawing defects such as tears wrinkles and scratches or galling. Therefore in this study a sample process planning of the severe of the severe deep drawing process is applied to a complex cylindrical housing needed for a 6 multi-stepped deep drawing of type STS 305 . A series of experiments are performed to investigate optimum process variables such as drawing rate radius and clearance. Through experiments the variations of the thickness strain distribution and hardness distribution in each drawing step are observed. Also the effects of other factors on formability such as drawing oil, blank holding force and die geometry are examined and discussed.

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Prediction of Ultimate Strength of Concrete Deep Beams with an Opening Using Strut-and-Tie Model (스트럿-타이 모델에 의한 개구부를 갖는 깊은 보의 극한강도 예측)

  • 지호석;송하원;변근주
    • Proceedings of the Korea Concrete Institute Conference
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    • 2001.05a
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    • pp.189-194
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    • 2001
  • In this study, ultimate strength of concrete deep beams with an opening is predicted by using Strut-and-Tie Model with a new effective compressive strength. First crack occurs around an opening by stress concentration due to geometric discontinuity. This results in decreasing ultimate strength of deep beams with an opening compared with general deep beams. With fundamental notion that ultimate strength of deep beam with an opening decreases as a result of reduction in effective compressive strength of a concrete strut, an equivalent effective compressive strength formula is proposed in order to reflect ultimate strength reduction due to an opening located in a concrete strut. An equivalent effective compressive strength formula which can reflect opening size and position is added to a testified algorithm of predicting ultimate strength of concrete deep beams. Therefore, ultimate strength of concrete deep beam with an opening is predicted by using a simple and rational STM algorithm including an equivalent effective compressive strength formula, not by finite element analysis or a former complex Strut-and-Tie Model

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Investigation of Deep Drawability and Product Qualities of Ultra Thin Beryllium Copper Sheet Metal (베릴륨동 극박판의 드로잉 성형성과 품질특성 연구)

  • Park, S.S.;Hwang, K.B.;Kim, J.B.;Kim, J.H.
    • Transactions of Materials Processing
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    • v.19 no.3
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    • pp.179-184
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    • 2010
  • The present study is focused on the deep drawability and product qualities of ultra thin beryllium copper sheet metal. The goal of this research is to investigate the limit drawing ratio in deep drawing of ultra thin beryllium copper metal. For the experiment, beryllium copper(C1720, $50{\mu}m$ in thickness) is used. Tensile test are also carried out to find out the material properties. Deep drawing experiments are carried out in Universal Testing Machine(UTM) to obtain limit drawing ratio. Deep drawing tests are carried out for various specimen sizes. Teflon film is used as a lubricant and constant blank holding force is imposed. Sheet thickness and surface hardness are measured along radial direction after deep drawing. Thickness is measured using optical microscope. For beryllium copper(C1720), the maximum LDR of 2.4 is obtained when the die shoulder radius is 20 or 30 times of sheet thickness.

STUDY ON THE DEEP LOOSENING TECHNIQUE OF SUGARCANE

  • Luo, Xiwen-;Haibo-Wen;Guofu-Huang
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1993.10a
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    • pp.994-1002
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    • 1993
  • Soil deep loosening technique can improve the soil structure and increase the air permeability and water permeability of soil. It can increase the yield of crops in a large scale, particularly the plants with deep root system. This paper introduced the study on the deep loosening technique of sugarcance in Jinpen Farm where the soil is heavy caly with high ground water table. The implement and method of deep loosing, the experiments and results are include in this paper. The experimental results showed that the yield of sugarcane increased more than 20% after deep loosing.

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Force transfer mechanisms for reliable design of reinforced concrete deep beams

  • Park, Jung-Woong;Kim, Seung-Eock
    • Structural Engineering and Mechanics
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    • v.30 no.1
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    • pp.77-97
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    • 2008
  • In this paper, a strut-and-tie model approach has been proposed to directly calculate the amount of reinforcements in deep beams, and the force transfer mechanisms for this approach were investigated using linear finite element analysis. The proposed strut-and-tie model provides quite similar force transfer mechanisms to the results of linear finite element analysis for the 28 deep beams. The load-carrying capacities calculated from the proposed method are both accurate and conservative with little scatter or trends for the 214 deep beams. The deep beams have different concrete strengths including high-strength, various combinations of web reinforcements, and wide range of and a/d ratios. Good accuracy was also obtained using VecTor2, nonlinear finite element analysis tool based on the Modified Compression Field Theory. Since the proposed method provides a safe and reliable means for design of deep beams, this can serve to improve design provisions in future adjustments and development of design guidelines.

ONE CASE OF ACUTE MEDIASTINITIS IN DEEP NECK INFECTION (경부심부감염에 의한 급성 종격동염 1례)

  • 박종태;김정은;백승훈;김명원;이종환;장백암
    • Korean Journal of Bronchoesophagology
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    • v.2 no.2
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    • pp.253-257
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    • 1996
  • Deep neck infections were flirty common and a source of considerable morbidity and mortality. Although the advent of antibiotics has reduced the overall number of deep neck infections, they still occur in the general population. There are several new groups of patients at risk for deep neck infections, such as immunocompromised individuals, those with underlying diseases. Prevention of the severe sequale that may be associated with deep neck infections- mediastinitis, airway obstruction, carotid artery hemorrhage, aspiration pneumonia, septicemia - requires a knowledge of various portals of entry for infection, the presenting sign and symptoms, the possible microbiologic features, appropriate laboratory and radiologic workups, therapeutic techniques, and the ongoing medical management. A prompt diagnosis and institution of therapy will shorten the course of required treatment and reduce morbility and mortility. The authors have experienced one case of acute mediastinitis in deep neck infection patient with diabetes mellitus.

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An Experimental Study on Shear Strengthening of the R/C Deep Beams Using Carbon and Aramid Fibers (탄소 및 아라미드섬유를 이용한 철근콘크리트 깊은 보의 전단보강에 관한 실험적 연구)

  • Jo, Byung-Wan;Kim, Young-Jin
    • Journal of Ocean Engineering and Technology
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    • v.13 no.3B
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    • pp.56-64
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    • 1999
  • An experimental study was carried out to examine the structural behavior of reinforced concrete deep beams strengthened with aramid fiber sheets, carbon fiber sheets and plates, and to propose the reasonable strengthening method for the deteriorated R.C. deep beams. Results show that the most significant differences in behavior of reinforced concrete deep beams strengthened with fiber sheet and plate were mainly due to various fiber orientations and anchorage. Deep beams diagonally strengthened with carbon fibers show better performance compared with those of vertically, horizontally strengthened specimens and produce the increase in the shear resistance through the redistribution of internal forces after the initial cracks occur. However, strengthened deep beams without anchorages might show unreasonable, brittle peeling-off failure of fiber reinforcements.

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Deep LS-SVM for regression

  • Hwang, Changha;Shim, Jooyong
    • Journal of the Korean Data and Information Science Society
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    • v.27 no.3
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    • pp.827-833
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    • 2016
  • In this paper, we propose a deep least squares support vector machine (LS-SVM) for regression problems, which consists of the input layer and the hidden layer. In the hidden layer, LS-SVMs are trained with the original input variables and the perturbed responses. For the final output, the main LS-SVM is trained with the outputs from LS-SVMs of the hidden layer as input variables and the original responses. In contrast to the multilayer neural network (MNN), LS-SVMs in the deep LS-SVM are trained to minimize the penalized objective function. Thus, the learning dynamics of the deep LS-SVM are entirely different from MNN in which all weights and biases are trained to minimize one final error function. When compared to MNN approaches, the deep LS-SVM does not make use of any combination weights, but trains all LS-SVMs in the architecture. Experimental results from real datasets illustrate that the deep LS-SVM significantly outperforms state of the art machine learning methods on regression problems.

A Survey on Deep Convolutional Neural Networks for Image Steganography and Steganalysis

  • Hussain, Israr;Zeng, Jishen;Qin, Xinhong;Tan, Shunquan
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.14 no.3
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    • pp.1228-1248
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    • 2020
  • Steganalysis & steganography have witnessed immense progress over the past few years by the advancement of deep convolutional neural networks (DCNN). In this paper, we analyzed current research states from the latest image steganography and steganalysis frameworks based on deep learning. Our objective is to provide for future researchers the work being done on deep learning-based image steganography & steganalysis and highlights the strengths and weakness of existing up-to-date techniques. The result of this study opens new approaches for upcoming research and may serve as source of hypothesis for further significant research on deep learning-based image steganography and steganalysis. Finally, technical challenges of current methods and several promising directions on deep learning steganography and steganalysis are suggested to illustrate how these challenges can be transferred into prolific future research avenues.