대학생의 스마트폰 이용이 일상생활 도움과 과다몰입 해소를 위한 거버넌스 개입방안에 관한 연구

권순만(Kwon, Soon-Man),김종상(Kim, Jong-Sang),성현주(Seong, Hyun-Ju) 한국케어매니지먼트학회 2016 한국케어매니지먼트연구 Vol.21 No.-

본 연구는 대학생의 스마트폰 이용이 일상생활에 어떠한 영향을 미치는지 보고 과다몰입 해소를 위한 거버넌스 개입 방안에 대하여 살펴보고자 하였다. 본 연구의 대상은 G시에 소재한 K대학교 대학생 554명이었고, 자료는 질문지법으로 수집하여 SPSS ver 18.0을 이용하여 통계적 자료처리를 실시하였다. 본 연구의 결과는 첫째, 대학생이 스마트폰을 오락휴식으로 이용할 경우 대인관계, 생활의 편리, 정보습득, 개인정보유출, 습관적, 불안초조에 영향을 미치는 것으로 나타났지만 사회적 위축에 대한 인식은 낮게 나타났다. 둘째, 대학생이 스마트폰을 태도행동결정으로 이용할 경우 편리성, 건강악화에 직접적인 영향을 미쳤다. 셋째, 대학생이 스마트폰을 이해인지와 태도행동결정으로 이용할 경우 소외감, 소비에 영향을 미치는 것으로 나타났지만 오락휴식으로 스마트폰을 이용할 경우 소비는 낮게 인식하고 있었다. 이러한 결과들은 대학생이 스마트폰을 통하여 일상생활에 도움이 미치는 요인을 알아보고 과다한 스마트폰 이용으로 몰입된 대학생뿐만 아니라 범국민을 위한 집단 심리치료 프로그램을 실시하고, 스마트폰 이용 관련 매뉴얼을 제작 및 배포하여 몰입 관련 요인에 따른 사례별 맞춤형 사례관리 서비스가 이루어질 수있도록 하며, 스마트폰 이용 관련 교육을 실시하여 잠재적 위험에 있는 몰입한 대상으로 예방적 서비스가 이루어질 수 있도록 해야 할 것이다. 본 연구를 통하여 대학생들의 일상생활에 많은 영향을 미치는 스마트폰 이용에 대한 질적 증대를 도모하고 무분별한 이용으로 야기되는 다양한 사회문제를 예방하기 위한 거버넌스 개입 방안을 수립하는 기초자료로서 의미가 있을 것이라 사료된다. This study identified the impacts of the use of smartphones of university students for their daily life and reviewed governance intervention to reduce their immersion in smartphones. The study targeted 554 students of K University in G city, collected the data from the questionnaire and conducted the statistical data processing using SPSS ver 18.0. As a result, first, the use of smartphones of university students for the purpose of recreation had impacts on interpersonal relationship, convenience in life, information acquisition, personal information leakage and habitual anxiety but the awareness of social withdrawal was low. Second, the use of smartphones for the purpose of attitude-behavior decision had direct impacts on convenience and deterioration in health. Third, while the use of smartphones for the purpose of understanding, recognition and attitude-behavior decision had impacts on a sense of alienation and consumption, the awareness of consumption was low when using smartphone for the purpose of recreation. The research finding should be used to conduct the collective psychological treatment programs for the public as well as university students who are excessively immersed in smartphones by reviewing the factors that can help the students’ daily life through smartphones; provide the customized case management services depending on the immersion factors by creating and distributing the manual on using smartphones; and come up with the preventive services for the immersed people who are in a potential danger by providing education on the use of smartphones. This study is considered significant as a basic data to improve the quality of smartphone use that highly affects the daily life of university students and establish the measures for governance intervention to prevent various social issues that may be caused by reckless use.

유전자 알고리즘을 이용한 원판 캠의 비 유막두께 최적화

권순만(Soon-Man Kwon),김창현(Chang Hyun Kim),남형철(Hyoungchul Nam),신중호(Joong-Ho Shin) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5

During operation, cam-follower contacts experience a complex combination of cyclically-varying speed, load and geometry. The wear or surface fatigue can be reduced by maximizing the elastohydrodynamic film thickness. In this paper, an attempt has been made to estimate the optimal specific film thickness of cam-follower system quantitatively. A general TES polynomial function with real values of exponents is developed and genetic algorithm (GA) is used as optimization techniques for maximizing the minimum specific film thickness. The optimization programs enumerate values of the exponents for synthesis of cam displacement curves. The results show that the minimum film thickness can be increased considerably, e.g. approximately 7% in this paper.

면외 충격하중을 받는 3층 압전 복합재료내의 가장자리 균열거동

권순만,손명섭,이강용,Kwon, Soon-Man,Son, Myung-Son,Lee, Kang-Yong 대한기계학회 2002 大韓機械學會論文集A Vol.26 No.10

In this paper, we examine the dynamic electromechanical behavior of an edge crack in a piezoelectric ceramic layer bonded between two elastic layers under the combined anti-plane mechanical shear and in-plane electric transient loadings. We adopted both the permeable and impermeable crack boundary conditions. Fourier transforms are used to reduce the problem to the solution of two pairs of dual integral equations, which are then expressed to a Fredholm integral equation of the second kind. Numerical values on the dynamic energy release rate are presented to show the dependences upon the geometry, material combination, electromechanical coupling coefficient and electric field.

RRP 시스템을 이용한 sprocket 치형설계

권순만(Soon-man Kwon) 한국생산제조학회 2014 한국생산제조시스템학회 학술발표대회 논문집 Vol.2014 No.9(1)

〈학술논문〉하이포 트로코이드 기어펌프의 접촉응력과 건마멸 특성에 관한 연구

권순만(Soon-Man Kwon),심무용(Muyong Sim),여뢰(Lei Lu),신중호(Joong-Ho Shin) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5

The contact stress in a hypotrochoidal pump is addressed in this paper because it cannot be adjusted for wear. The first part of this paper presents a simple and exact rotor profile equations of the hypotrochoidal pump. In the second part of this paper, an explicit formular to avoid undercut in the outer-rotor of the hypotrochoidal pump is proposed by examining the minimum radius of curvature of the inner-rotor tooth profile on the convex section. Next, the contact stresses without hydrodynamic effect between the inner and outer-rotors are evaluated through the calculation of the Hertzian contact stress between the rotors' teeth. Based on the above results, we finally present the wear characteristics of p<SUB>H</SUB>V<SUB>s</SUB>. factor, which is proportional to the wear rate, between the rotors of the hypotrochoidal pump under quasi-static and dry contact conditions.

시민위원회와 건강보험 보장성 의사결정 사례

권순만 ( Soon Man Kwon ),오주환 ( Juh Wan Oh ),정연 ( Youn Jung ),허재헌 ( Jae Heon Heo ) 한국보건경제정책학회(구 한국보건경제학회) 2012 보건경제와 정책연구 Vol.18 No.3

건강보험의 보장성을 어떠한 방법으로 높일 것인가는 궁극적으로는 제한된 자원을 배분하는 우선순위 결정의 문제로 귀결되며 따라서 윤리와 가치의 문제로부터 자유로울 수 없다. 그간 건강보험을 비롯한 보건의료정책 결정에 있어서 일반 시민의 참여는 제한되어 왔고, 대신 전문가와 관료에 의해 의사결정이 이루어져 왔다. 본 연구에서는 우리나라 최초로 보건정책결정에 있어 시민참여 모형인 시민위원회를 열고 이를 통해 건강보험 보장성 강화를 위한 정책 대안을 모색하였다. 하루 동안 24명의 시민위원들이 모여 건강보험보장성 확대의 필요성, 건강보험 보장성 확대를 위한 5가지의 방안(항목별 확대, 대상집단별 보장성 확대, 상병별 확대, 상병수당제를 통한 급여확대, 본인부담금 상한제 확대) 별로 필요성 및 그에 따른 보험료 인상의 수용도를 논의하였다. 또 개개인의 시민위원들에게 1조원의 가상예산을 주어 보장성 확대를 위한 5가지 정책 대안에 대하여 예산배분을 하도록 하였다. 이번에 시민위원회를 시도해 봄으로써 시민들의 정책 참여 의지의 증가, 정책 수용성의 변화 등을 관찰할 수 있었고, 우리나라에서도 시민위원회가 활성화되어 보건정책결정의 중요한 수단으로 시민참여가 자리매김할 가능성을 엿볼 수 있었다. 건강보험 보장성 정책에 있어서 재원의 추가적인 확충과 부담은 필연적이고 따라서 보험료를 납부하는 일반 시민의 의사를 파악하고 그들을 정책과정에 참여시키는 것은 향후 더욱 강화되어야 할 것이다. Increasing the financial protection and benefit coverage of health insurance is inherently a priority setting in health resource allocation, which is related to ethics and value of health policy. Health policy making has been dominated by experts and bureaucrats with minimal participation of citizens in Korea. This study is the first attempt in Korea to use citizen council to examine key policy issues and options for health policy, namely, coverage and financial protection of health insurance. Twenty four members of a citizen council gathered for an one-day discussion on the need to extend the financial protection of health insurance, preference over various policy options to achieve the goal, and the willingness to pay more to increase the health insurance benefit coverage. The experiment of citizen council shows that citizen participation can be an effective element for health policy making in Korea. Any policy to increase the financial protection and benefit coverage of health insurance needs to take into account the citizens` preference and willingness to pay.

기어 정밀도를 고려한 CRP 시스템 랙의 굽힘 강도설계

권순만(Soon-man Kwon),차영빈(Young-bin Cha) 대한기계학회 2022 大韓機械學會論文集A Vol.46 No.6

본 논문에서는 기존 랙-피니언의 인벌류트 피니언 치를 롤러로 대체한 CRP(cam rack pinion) 시스템 랙의 기어 정밀도(gear accuracy grade)를 고려하지 않았을 때와 고려하였을 때의 이뿌리 굽힘응력(TRBS: tooth root bending stress) 거동을 비교 고찰하였다. 하중전담구간(STC: single tooth contact)에서의 TRBS 거동은 기어 정밀도와 무관하게 거의 일치하였으나 STC 최고위치인 HPSTC(highest point of STC)를 지난 이후의 하중분담구간(DTC: double tooth contact)에서의 TRBS는 기어 정밀도에 따라 상당한 차이를 보였다. 또 설계제원 중 롤러 피니언 모듈이 증가하면 압력각의 감소로 최대 접촉력은 약간 감소하나 형상계수(bending strength geometry factor)의 감소로 인해 TRBS가 증가함을 확인하였다. The cam rack pinion (CRP) system advances the conventional rack and pinion concept by replacing the pinion teeth with bearing supported rollers. In this paper, the tooth root bending stress (TRBS) for the rack of a CRP system was compared and investigated for scenarios when the gear accuracy grade was considered or not. The TRBS behavior in the single tooth contact (STC) was almost identical regardless of the gear precision; however, the TRBS in the double tooth contact (DTC) showed a significant difference depending on the gear precision. In addition, for the design specifications, it was confirmed that when the roller pinion module increased, the maximum contact force slightly decreased due to the decrease in the pressure angle, and the TRBS increased due to the decrease in the bending strength geometry factor.

〈학술논문〉제로터 펌프의 마멸 최적설계에 관한 연구

권순만(Soon-Man Kwon),남형철(Hyoungchul Nam),여뢰(Lei Lu),신중호(Joong-Ho Shin) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5

A disadvantage in the design of gerotor pump is a lack of parts that can be adjusted to compensate for wear in the rotor set, and as a consequence, it causes shape reduction of efficiency. In this paper, an attempt has been made to reduce the wear rate between the rotors of a gerotor pump. To do this, floating genetic algorithm (FGA) is used as an optimization technique for minimizing the wear rate proportional factor (WRPF). The result shows that the wear rate can be reduced considerably, e.g. approximately 8% in this paper, through the optimization using FGA.

GOVERNMENT POLICY AND FINANCIAL PERFORMANCE OF REGULATED INDUSTRY ; LEGAL OWNERSHIP AND THE DYNAMIC EFFECT OF REGULATION

권순만 (Soon Man Kwon) 한국정책학회 1995 韓國政策學會報 Vol.4 No.1

In the regulation of inherently noncompetitive markets, the most difficult task of the government is to set the optimum payment schedule for goods and services produced by regulated firms, such that the price can both cover the cost of production and provide incentives for the firms to minimize expenditures. This paper examines the effect of government payment policy (as incentive regulation) on the investment behavior of regulated industry, through an example of the prospective payment system (PPS) implemented in the U.S. social insurance system. The results reveal that the new form of payment policy does not achieve its desired goal because over time, the regulated firms learn to avoid the direct enforcement of regulation by substituting nonregulated inputs for regulated ones. It is also shown that organizations with different legal ownerships (public, private not-for-profit, and private for-profit entities) respond to regulation in different ways. The importance of understanding the nature of incentives and their effect on regulated firms, evidenced in this study, should shed light on the design of public policy for other industries.

유전자 알고리즘을 이용한 원판 캠의 비 유막두께 최적화

권순만(Soon-Man Kwon),김창현(Chang Hyun Kim),남형철(Hyoungchul Nam),신중호(Joong-Ho Shin) 대한기계학회 2008 大韓機械學會論文集A Vol.32 No.11

The rate of wear of cam followers in a valve train system is mainly a function of contact stress between the cam and the follower, sliding velocity and hydrodynamic film thickness between the two mating surfaces. The wear or surface fatigue can be reduced by maximizing the elastohydrodynamic film thickness. In this paper, an attempt has been made to estimate the optimal specific film thickness of cam-follower system quantitatively. A general TES polynomial function with real values of exponents is developed and genetic algorithm (GA) is used as optimization techniques for maximizing the minimum specific film thickness. The optimization programs enumerate values of the exponents for synthesis of cam displacement curves. The results show that the minimum film thickness can be increased considerably, e.g. approximately 7% in this paper.