아동양육시설종사자의 조직문화 지각이 직무만족도에 미치는 영향

홍원표 ( Hong Wonpyo ),이선미 ( Lee Sun-mi ),박예림 ( Park Ye-rim ) 미래유아교육학회 2022 미래유아교육학회지 Vol.29 No.1

본 연구는 아동양육시설 종사자가 지각한 조직문화가 직무만족도에 미치는 영향을 통해 아동양육시설에 바람직한 조직문화를 찾고 직무만족도를 높이는 방안을 모색하고자 한다. 이를 위해 전국 아동양육시설 종사자 318명을 대상으로 설문지를 통해 자료를 수집하고 SPSS 24.0을 사용하여 상관분석 및 다중회귀분석을 실시하였다. 연구결과는 다음과 같다. 첫째, 아동양육시설의 종사자가 지각한 조직문화와 직무만족도의 상관관계는 전체 조직문화와 전체 직무만족도, 집단문화와 개발문화가 각각 정적인 상관관계를 보였다. 합리문화는 보수, 승진에 대한 직무만족도에 정적인 상관관계를 보였으나 위계문화는 유의미한 상관을 보이지 않았다. 둘째, 조직문화와 직무만족도의 하위요인 간 다중회귀분석을 통한 영향력을 살펴본 결과, 보수를 제외한 집단문화와 개발문화가 직무만족도에 긍정적인 영향을 미쳤다. 합리문화는 보수, 승진에 대한 만족도에 긍정적인 영향을 미쳤으나, 위계문화는 리더십, 승진, 기관에 대한 만족도에 부정적인 영향을 미쳤다. 본 연구 결과를 통해 아동양육시설의 종사자가 지각하는 조직문화를 이해할 수 있었으며, 직무만족도와의 영향을 분석함으로써 앞으로 아동양육시설 조직문화의 방향이 집단, 개발문화로 나아가야 함을 제시하였다는 것에 의미가 있다. The purpose of this study was to analyze the effect of organizational culture on job satisfaction perceived by child care workers in child residential facilities. The participants of this study were 318 child care workers in the nationwide child residential facility. The survey questionnaires were given to the participants to collect the data, and statistical analysis was performed using the SPSS 24.0 program. The results of the study were as follows. First, the correlation between late organizational culture and job satisfaction among child care workers showed the static correlation between overall organizational culture and job satisfaction, group culture and development culture. Moreover, rational culture showed a static correlation between job satisfaction and promotion, however hierarchical culture showed no significant correlation. Second, group culture and development culture, excluding compensation, had a positive effect on job satisfaction. In addition, rational culture had a positive effect on the satisfaction of remuneration and promotion, however hierarchical culture had a negative effect on leadership, promotion and agency satisfaction. In conclusion, the study suggest that the organizational culture of children's nurturing facilities should be oriented toward collective development culture.

몬테카를로 기법을 활용한 가물막이댐의 파괴확률 산정

홍원표(Wonpyo Hong),정희수(Heesoo Chung),송창근(Chang-Geun Song) 대한토목학회 2021 대한토목학회지 Vol.69 No.3

연약지반의 측방유동으로 인하여 매설관에 작용하는 측방토압

홍원표(Hong Wonpyo),김재홍(Kim Jaehong) 한국지반환경공학회 2010 한국지반환경공학회논문집 Vol.11 No.9

모형실험과 유한요소법에 의한 수치해석을 통하여 측방변형지반 속에 설치된 매설관에 작용하는 측방토압을 관찰하였다. 모형실험에서는 모형지반 속에 매설관을 설치한 후 모형지반에 측방변형이 발생될 수 있게 모형실험기를 제작하여 실제 지반에서의 상황을 시뮬레이션하였다. 이 모형실험기는 지반의 변형속도를 여러 가지로 조절할 수 있게 제작하였다. 여러 가지 직경과 형상의 매설관에 대하여 실험을 실시함으로써 이들 요인이 측방토압에 미치는 영향을 조사하였다. 모형실험결과 연약지반의 측방유동으로 인하여 매설관에 작용하는 측방하중은 연약지반의 측방변형속도가 빠를수록 크게 작용하였다. 순간재하 조건에 의한 수치해석결과는 지반변형속도가 중간 정도 빠르기인 0.3㎜/min에서 1.0㎜/min 사이의 지반변형속도의 조건에서 실시한 모형실험 결과와 유사하였다. 대부분의 모형실험결과 지반변형량이 작은 시점에서 측방하중의 제1항복이 발생하며 이때까지 탄성변형거동을 보이다가 제2항복에 이르기까지 하중이 한 동안 수렴되는 소성거동을 보였다. 지반변형이 계속하여 증가하면 측방하중도 다시 증가하여 압축거동을 보였다. 그러나 빠른 지반변형속도에서의 실험 결과에서는 항복하중에 도달한 후 수렴과정이 없이 계속하여 하중이 증가하였음을 볼 수 있다. 매설관의 직경이 클수록 측방유동 연약지반 속에 설치된 매설관에 작용하는 측방하중의 크기와 하중증가 속도가 컸으며 초기지반변형에서는 측방하중이 매설관의 직경 및 형상의 영향을 적게 받지만 지반변형량이 증가함에 따라 그 영향이 크게 나타났다. A series of model test as well as numerical analysis by FEM was performed to investigate lateral earth pressure acting on a buried pipe in soft ground undergoing horizontal soil movement. A model test apparatus was manufactured so as to simulate horizontal soil movement in model soft ground, in which a model rigid buried pipe was installed. The velocity of soil deformation could be controlled as wanted during testing. The model test was performed on buried pipes with various diameters and shapes to investigate major factors affected the lateral earth pressure. The result of model tests showed that the larger lateral earth pressure acted on the buried pipes under the faster velocity of soil movement. The result of numerical analysis, which was performed under immediate loading condition, showed a similar behavior with the result of model tests under 0.3㎜/min to 1.0㎜/min velocity of soil deformation. Most of model tests showed the soil deformation-lateral load behavior, in which the first yielding load developed at small soil deformation and elastic behavior was observed by the yielding load. Then, lateral load was kept constant by the second yielding load, in which plastic behavior was observed between the first yielding load and the second yielding one. Beyond the second yielding load, the compression behavior zone was observed. When the velocity was too fast, however, the lateral load was increased with soil deformation beyond the first yielding load without showing the second yielding load. The buried pipes with the larger diameter was subjected to the larger lateral load and the larger increasing rate of lateral load. At small soil deformation, the influence of diameter and shape of buried pipes on lateral load was small. However, when soil deformation was increased considerably, the influence became more and more.

표면 거칠기를 고려한 NURBS 보간기

최인휴(Inhugh Choi),정태성(Taesung Jung),홍원표(Wonpyo Hong),양민양(Minyang Yang) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4

Finish machining of a curved surface is often carried out by an NC system with curve interpolation in the<br/> field. This NURBS interpolation adopts a feedrate optimizing strategy based on both the geometrical<br/> information and dynamic properties. In case of a finish cut using a ball-end mill, the curve interpolator needs<br/> to take the machining process into account for more improved surface, while reducing the polishing time. In<br/> this study, the effect of low machinability at the bottom of a tool on surface roughness is also considered. A<br/> particular curve interpolation algorithm is proposed for generating feedrate commands which are able to<br/> control the roughness of a curved surface. The simulation of the machined surface by the proposed algorithm<br/> was carried out, and experimental results are presented.

도로 성토로 인한 연약지반의 측방유동에 관한 연구

김정훈(Kim, Junghoon),홍원표(Hong, Wonpyo),이충민(Lee, Choongmin),이준우(Lee, Junwoo) 한국지반환경공학회 2012 한국지반환경공학회논문집 Vol.13 No.9

각종 연직배수재가 설치된 연약지반의 전단강도, 지반변형의 특성을 조사하기 위해 우리나라 서해안과 남해안 지역에서 계측관리가 실시된 13개 연약지반현장 200개소에서 계측자료를 수집하였다. 먼저 연약지반의 침하량과 측방변위량과의 관계를 성토 초기 단계, 성토 완료 단계 및 성토 완료 후 단계의 세 단계로 구분하여 조사하였다. 다음으로 성토압과 성토고가 연약지반의 비배수전단강도와 어떤 관계에 있는가를 조사하였다. 검토결과, 침하의 증가량에 대한 수평변위의 증가량은 성토 초기 단계에서는 작았으나 점차 증가하여 성토 완료 단계에서 가장 크게 발생되었다. 그러나 성토 완료 후에도 침하량은 계속 증가하고 있었으며 수평변위는 거의 수렴하였으므로 대부분의 측방유동은 성토시공 중에 발생되었다. 침하량증분에 대한 수평변위증분의 비는 성토초기 단계에서 20% 정도로 Tavenas et al.(1979)이 제시한 값과 일치하였으나 성토 완료 단계에서는 Tavenas et al.(1979)이 제시한 값의 절반 정도인 50%밖에 나타나지 않았다. 그리고 성토 완료 후 단계에서는 1%에서 9% 사이로 아주 작게 발생되어 Tavenas et al.(1979)이 제시한 값과 상당한 차이를 보였다. 모든 현장에서 설계성토고가 초기비배수강도 상태에서의 항복성토고보다 높은 상태였으므로, 연약지반 속에 전단변형 내지 전단파괴가 발생될 것이 예상되었다. 그러나 강도가 증가된 후에는 모든 현장에서 설계성토고가 항복성토고보다 낮게 되어 안전한 성토시공이 가능하였던 것으로 판단된다. 도로성토시공을 안전하게 실시하기 위해서는 성토하중이 초기비배수전단강도의 5.14배가 넘지 않도록 하여야 하며 증가된 비배수전단강도의 3.0배 이하가 되도록 설계하여야 한다. To investigate the characteristics of shear strength and soil deformation in soft grounds, in which various vertical drains were placed, two hundreds field monitoring data of embankments performed in thirteen road construction sites at west and south coastal areas of the Korean Peninsula were collected. At first, the relationship between settlement and lateral displacement was investigated into three stages, in which embankment construction works were divided into initial filling stage, final filling stage and stage after complete filling. And then, the relationship of surcharge pressures and embankment heights with undrained shear strength of soft grounds were investigated. The investigation on settlement and lateral displacement illustrated that the increment of lateral flow to the increment of settlement was low during initial filling stage, but increased gradually with filling and showed largest during final filling stage. After complete filling, the lateral displacement was converged, even though the settlement was increased continuously. Therefore, most of lateral flow was occurred during embankment filling. The ratio of the lateral displacement increment to the settlement increment was 20% for initial filling stage, which coincided with the one presented by Tavenas et al.(1979), but became 50% for final filling stage, which was half of the one presented by Tavenas et al.(1979). However, the ratio reduced to 1% to 9%, which was quite lower than the one presented by Tavenas et al.(1979). Shear deformations, even shear failures, were predicted in soft grounds under initial undrained shear strength, since the design heights of embankments were higher than the yield height in all the sites. However, embankment construction would be possible since the yield height became higher than the design height due to improvement of shear strength of soft grounds with application of the vertical drains. In order to perform safely embankments for road constructions, the embankment loads should be designed not to be exceed 5.14 times the initial undrained shear strength of soft grounds and to be less than 3.0 times the undrained shear strength improved with application of vertical drains in soft grounds.

엔지니어링 협업기반의 중소기업 연구개발지원모델

이동윤(Dongyoon Lee),홍원표(Wonpyo Hong),최영재(Youngjae Choi),송기형(Kihyeong Song),이석우(Seokwoo Lee) (사)한국CDE학회 2007 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2007 No.1

항만 위험ㆍ유해화학물질 안전관리 개선방안 연구

이덕재(Lee Deokjae),홍원표(Hong Wonpyo),권진욱(Kwon Jinwook),송창근(Song Chang Geun) 한국방재학회 2018 한국방재학회지 Vol.18 No.4

세계 경제의 성장과 더불어 국내 HNS 물동량은 증가 추세에 있으며 매년 항만 HNS 누출 사고에 따른 인명, 환경, 재산피해가 발생하고 있어 국민들의 관심이 날로 증가되고 있는 시점이다. 항만 HNS 안전관리를 위해 주요 국내ㆍ외 항만에서 발생한 사고 검토, 관리상 문제점, 사고 대응상의 미흡점과 통합 안전관리 도입 필요성 제기를 통해서 개선방안을 도출하였다. 통합안전관리 시스템은 지능형 CCTV, 이동형 X-ray 시스템, 재난 감시 위성 등을 활용한 입체 관리와 환경부 중심의 통합 정보상황실 구축을 통한 효율적인 항만 HNS 누출 사고 예방ㆍ대응이 이루어져 피해 최소화와 빠른 복구가 가능할 것으로 예상된다. With the growth of the global economy, domestic HNS trade volume is on the rise, and the interest of the people is increasing every year because of the damage caused by the HNS leakage accidents. The improvement plan was drawn up the major domestic and foreign HNS leakage accident review, management problems, insufficient response to accidents in port, and the necessity of integrated safety management for HNS safety management. The integrated safety management system is expected to minimize damage and quickly recover by effectively preventing and responding to HNS accidents through the establishment of integrated information situation room centered on the Ministry of Environment and three-dimensional management using intelligent CCTV, mobile X-ray system and disaster surveillance satellite.

PZT를 이용한 초정밀 회전 구동기에 관한 연구

한창수(Changsoo Han),윤덕원(Deok won Yun),최현석(Hyeunseok Choi),홍원표(Wonpyo Hong),강은구(Eungoo Kang),최헌종(Hunjong Choi) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5

Recently PZT is used in ultra precision mechanism field. PZT itself has a small driving range although it has a high resolution. Many methods, such as inchworm, impact driving, inertial sliding method, etc., have been applied for moving range expansion. In this study, a new actuating mechanism for rotational motion with two driving PZT is proposed. The Fixed-Fixed beam support is applied for compensation of the difference in driving force between expansion and contraction of PZT. The behavior and design parameters of the proposed mechanism are analyzed for improving performance.

초정밀 위치 결정 장치에 관한 연구

윤덕원(Deokwon Yun),최현석(Hyeunseok Choi),한창수(Changsoo Han),최헌종(Hunjong Choi),홍원표(Wonpyo Hong),강은구(Eungoo Kang) 한국생산제조학회 2005 한국공작기계학회 추계학술대회논문집 Vol.2005 No.-

Recently PZT is used in ultra precision mechanism field. PZT itself has a small driving range although it has a high resolution. Many methods, such as inchworm, impact driving, inertial sliding method, etc., have been applied for moving range expansion. In this study, a new actuating mechanism for rotational motion with two driving PZT is proposed. The actuator which is made by proposed mechanism is able to coarse motion and fine motion And we applied dual mode control to system. The behavior and design parameters of the proposed mechanism are analyzed for improving performance.

기업간 상생협력 기반 한국형 제조혁신 전략

이석우(Seokwoo Lee),류광열(Kwangyeol Ryu),남성호(Sungho Nam),홍원표(Wonpyo Hong),최헌종(Honzong Choi) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5

Unpredictable customer demands make manufacturers to make quality products with cheaper price and shorter delivery. To survive in the global market, the manufacturing industry needs to equip with advanced technologies including IT. Under this situation, collaborationis the best solution for manufacturers to survive and to grow their company instead of competition. With this strategy, we have conducted a project(e-Manufacturing). The companies participate to the project attained the amazing results by utilizing collaboration systems such as delivery shortened and increase in sale/profit. Since the strategy of the project is assessed to be very useful to increase competition power of manufacturers, the project will be enlarged to cover wider application domains with a new project name called i-Manufacturing. In this paper, therefore, we introduce the specific output from the e-Manufacturing project and the specific strategies/plans of i-Manufacturing project.