Response to COVID‐19 in social welfare facilities and the psychological state of social workers in South Korea: The mediating role of satisfaction with government

Shin Sangjoon,Gim Jimin 한국사회복지학회 2021 Asian Social Work and Policy Review Vol.15 No.3

This paper investigated associations between COVID-19 responses in social welfare facilities and the psychological state of social workers together with the potential mediating role of satisfaction with the government. During the COVID-19 pandemic, following government guidelines, social workers have continued to provide social services to the vulnerable groups. However, no research has been conducted focusing on their psychological state. A cross-sectional survey was carried out in Incheon Metropolitan City, South Korea. Data from 332 participants were analyzed using structural equation modeling. Supplementary in-depth interviews were conducted with social workers. Analysis results show that higher levels of preventive measures against COVID-19 directly worsen levels of well-being, but this negative effect is offset by the satisfaction with the government (β = .383, p < .001). In social workers, satisfaction with the government fully mediates the influence of preventive measures toward reduced negative emotionality (β = −.288, p < .001). The implications of this study suggest that the government's active response to the social welfare sector is important to alleviate the negative psychological consequences of social workers.

Design and Simulation of Integral Twist Control for Helicopter Vibration Reduction

Sangjoon Shin,Carlos E. S. Cesnik,Steven R. Hall 대한전기학회 2007 International Journal of Control, Automation, and Vol.5 No.1

Closed-loop active twist control of integral helicopter rotor blades is investigated in this paper for reducing hub vibration induced in forward flight. A four-bladed fully articulated integral twist-actuated rotor system has been designed and tested successfully in wind tunnel in open-loop actuation. The integral twist deformation of the blades is generated using active fiber composite actuators embedded in the composite blade construction. An analytical framework is developed to examine integrally twisted helicopter blades and their aeroelastic behavior during different flight conditions. This aeroelastic model stems from a three-dimensional electroelastic beam formulation with geometrical-exactness, and is coupled with finite-state dynamic inflow aerodynamics. A system identification methodology that assumes a linear periodic system is adopted to estimate the harmonic transfer function of the rotor system. A vibration minimizing controller is designed based on this result, which implements a classical disturbance rejection algorithm with some modifications. Using the established analytical framework, the closed-loop controller is numerically simulated and the hub vibratory load reduction capability is demonstrated.

Mediating Role of Community Participation between Physical Environments, Social Relationships, Social Conflicts, and Quality of Life: Evidence from South Korea

( Sangjoon Shin ),( Kyujin Jung ) 한국정책학회 2019 한국정책학회 동계학술발표논문집 Vol.2019 No.-

While Community participation has been considered as an essential determinant in enhancing the level of quality of life (QOL), few have systemically tested the mediating impact of community participation between physical Environments, social Relationships, social conflicts, and QOL. Using the 2015 Korean’ Conflicts and Cooperation Survey, which is randomly sampled by gender, age, and regions, this research aims to analyzes the mediating effect of community participation between physical Environments, social Relationships, social conflicts, and QOL. The analysis results show that community participation plays a mediating role in increasing the level of QOL among many people with experiences with social conflict. The individuals’ satisfaction with their physical environment and interpersonal relationships directly affects their level of QOL, while their experiences of social conflict does not have an impact on the level of QOL. The findings of this study suggest that the activation of communities can offset negative experiences resulting from social conflicts and improve the level of QOL of individuals in the South Korean context. This research contributes to methodological and theoretical topics in the field of quality of life.

Helicopter Vibration Reduction in Forward Flight Using Blade Integral Twist Actuation

SangJoon Shin,Carlos E. S. Cesnik 대한기계학회 2007 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.21 No.2

An analytical framework has been developed to examine integrally-twisted helicopter blades and their aero elastic behavior during forward flight. This is accomplished by modifying an existing multi-body dynamics code, DYMORE, with active material constitutive relations. An integral twist-actuated rotor blade was designed within this framework. A four-bladed fullyarticulated active rotor system was built and tested to demonstrate the present concept in forward flight. The impact of integral twist actuation on fixed and rotating system loads during forward flight is evaluated by the proposed analysis. While discrepancies are found in the amplitude of the loads under actuation, the predicted trend of load variation with respect to its control phase correlates well with the experiments. Factors affecting the accuracy of the present analysis against the experimental results are described in detail. Based on the present discussion, an improved analysis is planned to be conducted.

정책네트워크와 공공갈등 - 수도권매립지에 관한 정책형성과정을 중심으로 -

신상준 ( Sangjoon Shin ) 한국정책학회 2017 韓國政策學會報 Vol.26 No.3

이 연구는 정책 네트워크 이론을 적용하여 수도권매립지에 관한 정책형성과정에서 발생한 갈등사례를 분석하였다. 수도권매립지는 1992년부터 현재까지 수도권에서 발생한 대부분의 매립폐기물을 처리한다. 이 매립지는 2016년 12월 31일에 종료될 계획이었으나, 서울시·인천시·경기도·환경부 등의 정부기관들이 2015년 6월 28일에 사용연장에 합의하였다. 갈등을 보이던 서울시와 인천시는 이 합의과정에서 협력관계로 변화하였으나, 지역주민들은 이 합의에 반발하는 양상을 보였다. 이 연구는 질적 자료를 이용하여 수도권매립지에 관한 공사 이해관계자들의 네트워크 유형을 분석하기 위해 이 사례를 세시기로 나누었다. 분석결과, 이 매립지의 사용연장을 반대하였던 인천시가 찬성으로 변화하면서 협력관계에 있었던 민간 이해관계자들을 정책 참여에서 제외시키려고 하였다. 이에 대하여 민간 이해관계자들은 조직화를 실시하여 정부의 정책형성과정에 참여하려 하였으나 수용되지 못하였다. 이로써 정부가 관민 간의 갈등에서 당사자가 될 경우 민간의 정책 참여를 부정하는 경향이 있다는 점을 확인할 수 있었다. 한편 수도권매립지의 연장사용에 대하여 시민들의 반대가 지속되고 있음에도 인천시의 입장이 변화된 이유는 매립지의 사용이 종료가 된다면 수도권 정부기관들의 협력 시스템 붕괴를 우려하였기 때문인 것으로 파악되었다. 수도권매립지 사례는 공공갈등에서 정부가 당사자가 될 경우 관민협력보다는 정부간 협력을 우선시하는 행태를 보이는 특징적 사례로 남는다. Applying policy network theory, this paper analyzes the public conflicts surrounding the Seoul Metropolitan Landfill site. This landfill site had been handling most of the landfill wastes from the Seoul metropolitan area since 1992 but this function was scheduled to end by December 31, 2016. One and half years before this scheduled closure, however, four government agencies--Seoul Metropolitan Government, Incheon Metropolitan City, Gyeonggi Provincial Government, and Ministry of Environment--agreed to extend the period of the landfill site service. This extension was possible as Incheon City changed its position from the initial decision of closure. In so doing, the City government tried to exclude private stakeholders, once considered policy partners to cooperate, from participating in decision making process. Citizen and resident groups mobilized themselves to secure their place but to no avail. This case confirms the tendency that government is defensive toward citizen participation when it becomes a negotiation party with civil society actors. The Incheon City Government officials chose to accommodate to the needs of other neighboring local governments concerning about the collapse of inter-governmental cooperation. This Seoul Metropolitan Landfill site service extension decision remains a characteristic case in which public officials prioritize intergovernmental cooperation over public-private cooperation.

갈등 행위자들의 인식과 갈등양상의 변화 - 수도권매립지의 연장사용 결정 이후를 중심으로 -

신상준 ( Sangjoon Shin ),김용희 ( Yong Hee Kim ) 한국정책학회 2019 韓國政策學會報 Vol.28 No.2

본 연구는 공공갈등의 대표적 사례인 수도권매립지를 선정하여 관련 행위자들의 인식과 갈등의 양상, 이해관계자에 따른 갈등양상의 변화를 분석하였다. 분석방법은 의미네트워크(Semantic Network) 분석과 QAP(Quadratic Assignment Procedure) 회귀분석을 실시하였고, 질적자료를 활용하여 분석결과를 보완하였다. 수도권매립지는 2015년 6월 28일에 서울시·인천시·경기도·환경부 등의 4자 정부기관에서 연장하여 사용할 것으로 합의하였고, 2018년 6월 13일에 지방선거에 의해 인천시장이 교체됨으로써 수도권매립지와 관련된 갈등구도는 보이지 않는다. 본 연구는 해당 사례를 분석하기 위해 연장 결정 이후 인천시장이 교체되기까지, 3시기로 구분하여 각 시기별로 확인되는 특징들을 분석하였다. 분석결과, 행위자들의 인식과 갈등의 양상들은 인천시장의 주도하에 변경되었으며, 갈등의 해소 역시 인천시장이 교체됨으로써 이루어졌다. 선행연구에서 중앙정부와 지방자치단체의 정책과정과 공공갈등은 해당 정부기관 대표의 의지에 따라 변경된다고 밝히고 있는데, 본 연구 역시 이러한 연구결과의 연장선상에 있다. This study selected Seoul metropolitan landfill as a representative example of public conflict and analyzed the perceptions of conflict actors, the patterns of conflict, and the changes in conflict patterns among stakeholders. Semantic network analysis and QAP (Quadratic Assignment Procedure) regression analysis were performed and the analysis results were supplemented by using qualitative data. On June 28, 2015, the use of this landfill site was agreed to be extended by four-party government agencies such as Seoul, Incheon, Gyeonggi-do Province, and the Ministry of Environment, and the Incheon mayor was replaced by local elections on June 13, there are no conflicts involved. This study analyzed the characteristics identified by each period by dividing it into three periods from the extension decision to the replacement of the Incheon Mayor. As a result, the perceptions and conflicts of actors were transformed under the will of Incheon Mayor, and the resolution of conflict was also made by replacing it. The policy process and public conflicts of the central and local governments were modified according to the will of the representatives of the government agencies in the previous research, and this study is also an extension of these results.

정부에 대한 공정성 인식이 정부신뢰에 미치는 영향: 정부성과 만족도의 매개효과에 대한 다중집단 분석을 중심으로

신상준 ( Sangjoon Shin ),이숙종 ( Sook Jong Lee ) 한국행정학회 2016 韓國行政學報 Vol.50 No.2

본 연구에서는 정부에 대한 공정성 인식이 정부신뢰에 영향을 미치며, 이 과정에서 정부성과만족도가 매개효과를 갖는 것을 발견하였다. 먼저 정부의 공정성 변수를 절차, 분배, 상호작용 공정성으로 대별하여 정부신뢰 및 정부성과 만족도와의 관계를 살펴보았다. 그리고 사회를 신뢰하는 집단과 그렇지 않은 집단을 구분하여 집단 간 차이 분석을 실시하여 사회신뢰가 미약한 한국 사회에서 정부신뢰 향상을 위한 시사점을 도출하고자 하였다. 분석 결과, 정부신뢰에 가장 큰 영향을 미치는 변수는 상호작용공정성이었고, 정부성과만족도에 가장 큰 영향을 주고 있는 변수는 분배공정성이었다. 그리고 집단 간 차이분석에서는 독립변수가 절차공정성일 경우에 유의미한 집단 차이를 보여주고 있었다. 이러한 분석 결과를 근간으로 본 연구에서는 다음과 같은 시사점을 제시하였다. 첫째, 시민들에게 보여주는 공정하고 인간적 특징을 지닌 공감정부가 중요하며, 두 번째로 신뢰가 약한 한국 사회에서 정부가 적절히 운영되기 위해서는 절차적 공정성의 확보가 전제되어야 한다. 마지막으로 최근 논의 되고 있는 분배적 정의는 시민들에게 정부성과를 만족시킨 후에 정부신뢰를 향상시킬 수 있음을 실증적으로 증명하였다. This study determines that citizens’ perception that their government is “just” influences their trust in government, and citizens’ satisfaction with government performance mediates the relationship of these two variables. Perceptions of the justness of the government were measured through the three elements of procedural, distributional, and interactional justice. Two-group comparison was conducted between the high-trust group and the low-trust group to draw implications for ways to improve citizens’trust in government in Korea, where the level of social trust is weak. This study found that, among the three elements of government justice, interactional justice has the greatest influence on citizens’ trust in government, while distributional justice has a significant influence on citizen satisfaction with government performance. In a comparison of the two groups, only the perceptions of the government’s procedural justice showed a significant difference. On the basis of these findings, we can suggest the following. First, an “empathic government” that demonstrates fairness and humanism is important for citizens’ trust in government. Second, the following of procedural justice is a prerequisite for effective governance to compensate for the low level of social trust. Finally, distributional justice can enhance trust in government when citizens feel satisfied with government performance.

발사장치를 포함한 초음속 제트 소음 예측 및 검증

신상준(Sangjoon Shin),주현식(HyunShig Joo),강승훈(SeungHoon Kang),박태영(Taeyoung Park),엄원석(Won-Suk Ohm) 한국소음진동공학회 2019 한국소음진동공학회 학술대회논문집 Vol.2019 No.10

공기 베어링 스테이지 기동 및 정지에 따른 동특성 해석

박상준(SangJoon Park),이재혁(JaeHyeok Lee),김규하(Kyu-Ha Kim),박상신(Sang-Shin Park) 한국트라이볼로지학회 2019 한국트라이볼로지학회 학술대회 Vol.2019 No.10

Indoor 3D Pedestrian Tracking Algorithm Based on PDR using Smarthphone

Beomju Shin,Jung Ho Lee,Hyunho Lee,Eungyeong Kim,Jeahun Kim,Seok Lee,Young-su Cho,Sangjoon Park,Taikjin Lee 제어로봇시스템학회 2012 제어로봇시스템학회 국제학술대회 논문집 Vol.2012 No.10

In this paper, we develop the indoor navigation system based on PDR (Pedestrian Dead Reckoning) using various sensors in smartphone. Usually PDR is consisted of step detection, step length estimation and heading estimation. The issue of PDR is step length estimation and to enhance the accuracy of step length, we apply the walking status recognition algorithm using ANN (Artificial Neuron Network). The features used in ANN are extracted through sensor signals of accelerometer and gyroscope. After recognizing the walking status, it is applied to estimate the step length. And when the status is recognized as stop, even if sensor signal is generated by redundant motion or movement of pedestrian, the moved distance is not calculated additionally and distance error is not increased. We use the barometric pressure sensor to extend the positioning area to whole building. To verify the proposed indoor navigation system, we implemented the application for android and conducted the experiment. Through the results, we demonstrated the accuracy of our system.