• Human Ecology Research
• /
• 제52권6호
• /
• pp.573-586
• /
• 2014

The purpose of this study was to review the conceptual framework of social constructionism and critical social constructionism in the research area of multi-cultural family homes, using a literature review. Fopp argued that social constructionism had an objectivation problem that only considered the actor side as a policy object; therefore he suggested a weaker social constructionist perspective with moderate relativism and the application of feminist epistemology to marginal life for maximizing objectivity. This article explores a conceptual framework for studying the reality of housing of multi-cultural families in Korea in the light of constructionist ideas and presents a review of empirical positivist data to support the framework. Based on results, using the social constructionist framework, five contexts (structural, institutional, organizational, operational, and intersubjective) were reviewed and ideas were suggested to develop an appropriate future situation for multi-cultural family homes. For a weaker social constructionist framework, three National Survey of Multi-Cultural Family Homes data sets were reviewed to determine the real condition of multi-cultural family homes. Further, from a feminist perspective, the empirical data of marginalized multi-cultural family homes were reviewed from the perspectives of gender inequality of decision making, cultural adaptation, and differentiation in housing related areas. In conclusion, two perspectives were useful for understanding multi-cultural family housing in Korea but must be compensated with substantial empirical data for a holistic approach.

• Journal of the Korean Society for Industrial and Applied Mathematics
• /
• 제24권3호
• /
• pp.243-291
• /
• 2020

In this paper, multi-block generalized backward differentiation methods for numerical solutions of ordinary differential and differential algebraic equations are introduced. This class of linear multi-block methods is implemented as multi-block boundary value methods (MB₂ VMs). The root distribution of the stability polynomial of the new class of methods are determined using the Wiener-Hopf factorization of a matrix polynomial for the purpose of their correct implementation. Numerical tests, showing the potential of such methods for output of multi-block of solutions of the ordinary differential equations in the new approach are also reported herein. The methods which output multi-block of solutions of the ordinary differential equations on application, are unlike the conventional linear multistep methods which output a solution at a point or the conventional boundary value methods and multi-block methods which output only a block of solutions per step. The MB₂ VMs introduced herein is a novel approach at developing very large scale integration methods (VLSIM) in the numerical solution of differential equations.

• 한국철도학회:학술대회논문집
• /
• 한국철도학회 1998년도 창립기념 춘계학술대회 논문집
• /
• pp.257-264
• /
• 1998

Sound transmission characteristics are investigated on the corrugated panels which used for railway vehicles. A special purpose program is developed to calculate the sound transmission loss of orthotropic multi-layered panels. Several kinds of corrugated panels are analysed to estimate the transmission performance and the results are compared with the measured data. Calculated transmission losses show good agreement with the measured values in corrugated panels and aluminum/foam multi-layered panels. The analysis results can be utilized to design the corrugated panels and multi-layered panels which are required to reduce the interior noise in railway vehicles.

• 경영과학
• /
• 제12권1호
• /
• pp.157-173
• /
• 1995

Hydro-electric power generation from multi-purpose dams has been playing important roles in the electric power supply network in Korea. Although the total share of hydro power in national electricity supply now becomes very small, the peak-shaving and frequency control capability of hydro power helps the power company enormously in maintaining the quality of power. But since the company that builds and operates the multi-purpose dams in Korea has to sell all the electricity produced to the monopolistic utility, there have been various problems in justifying the investment, designing pricing mechanism, and controlling operations of the power plants. In addition, economic evaluation of the hydro power has been distorted by a variety of reasons and hence it has been very difficult to encourage effective development and utilization of national water resources. To make the problem worse, both parties are public companies with X-inefficiency problems. Thus, changing environment requires to reengineer the system that governs hydro power generation. We address the problems of Korean hydro-electric power generation system in four areas: the investment justification process, the operations decison right of the hydro power plants, the pricing of the purchased-power, and the negotiation of contract revision. Then we propose improvement directions of new hydro-electric power system in view of static and dynamic efficiency, X-inefficiency and equity.

• 한국지반공학회:학술대회논문집
• /
• 한국지반공학회 2008년도 춘계 학술발표회 초청강연 및 논문집
• /
• pp.1042-1050
• /
• 2008

In this study, SCP method was used by purpose to improve loose sand and soft clay that is drilled Sand Compaction Pile in underground. Settlement behavior of field analyzed through SCP method. When sand Compaction Pile drilled in clay, forming composite ground that foundation and Sand Compaction Pile behavior. According to SCP method can expect bearing capacity improvement, Settlement reduction, lateral flow protection. SCP increase the consolidation settlement of ground and it reduce settlement for that purpose increase liquefaction resistance, lateral Resistance. Because SCP had been widely used for sand. Area of Inchon-A by sand compose clay and silt to upper Ground and compose soft clay to under ground. After pre-loading, it measured settlement by extensometer and settlement extensometer that purpose of ground improvement with 13% in replacement ratio. The result analyzed settlement behavior is similar to Multi-layered Ground that it happened to elastic settlement at upper ground and to consolidation settlement at under ground.

• 항공우주산업기술동향
• /
• 제6권2호
• /
• pp.116-124
• /
• 2008

한국항공우주연구원이 개발하고 있는 통신해양기상위성은 2009년 6월경에 발사될 예정이다. 지구 자전속도와 같은 속도로 돌기 때문에 24시간 기상 및 해양관측과 통신서비스가 가능한 국내에서 개발되는 최초의 정지궤도위성이다. 2008년 11월에 프랑스에서 해양 탑재체가 들어옴으로써 세 가지 탑재체를 장착할 수 있게 되었고 그 후에는 우주환경시험 등을 거쳐서 프랑스령 기아나 우주센터에서 발사될 전망이다. 본 논문에서는 통신해양기상위성이 세계적으로도 첫 번째 정지궤도 복합위성이 되기 때문에 국내 및 세계적으로 정지궤도 복합위성과 관련된 개발 동향을 살펴보고자 한다.

• Nuclear Engineering and Technology
• /
• 제53권8호
• /
• pp.2708-2715
• /
• 2021

The Multi-Purpose Overload Robot (CMOR) is a key subsystem of China Fusion Engineering Test Reactor (CFETR) remote handling system. Due to the long cantilever and large loads of the CMOR, it has a large rigid-flexible coupling deformation that results in a poor position accuracy of the end-effector. In this study, based on the Levenberg-Marquardt algorithm, the spatial grid, and the linearized variable load principle, a variable parameter compensation model was designed to identify the parameters of the CMOR's kinematics models under different loads and at different poses so as to improve the trajectory tracking accuracy. Finally, through Adams-MATLAB/Simulink, the trajectory tracking accuracy of the CMOR's rigid-flexible coupling model was analyzed, and the end position error exceeded 0.1 m. After the variable parameter compensation model, the average position error of the end-effector became less than 0.02 m, which provides a reference for CMOR error compensation.

• 기본간호학회지
• /
• 제16권4호
• /
• pp.490-496
• /
• 2009

Purpose: The purpose of this study was to examine the validity of a single item scale by comparing a single item scale of health related quality of life to subscopes of the multi-item scales in the Medical Outcome Study Short Form-36 (SF-36), and Minnesota Living with Heart Failure Questionnaire (MLHFQ). Method: The data from 103 patients with heart failure were analyzed. The statistics program SPSS 12.0 used for descriptive statistics. Results: Significant correlations were found between the single item scale and subscopes of SF-36, for physical functioning (r= .42), role physical (r= .22), general health perception (r= .46), vitality (r= .40), social functioning (r= .20) and mental health (r= .51), but not for body pain (r= .12) and role emotional (r= .06). Physical (r= -.41), emotional (r= -.49) and total scores (r= -.49) of MLHFQ were significantly related to the single item scale. Conclusion: The single item scale of health related quality of life showed low to moderate correlation with multi-item scales. Even though the single item scale was correlated with several subscopes of multi-item scales, the correlation was not high, so we have to use caution when using the single item scale instead of multi-item scales.

• 한국컴퓨터산업학회논문지
• /
• 제2권4호
• /
• pp.481-490
• /
• 2001

본 논문에서는 소량 다품종 환경에 적극 대처 할 수 있는 다기능, 다목적을 갖는 산업용 제어기를 설계 제안하였다. 설계된 제어기는 모든 정보가 집중되는 MU(Main Unit)와 표시장치를 나타내는 DU(Display Unit)로 구성된다. 소프트웨어 관점에서 MU는 상위 태스크와 하위 드라이버로 구성되며, 각 태스크는 멀티태스킹을 지원 운영체제를 이용하여 병렬 처리된다. 설계된 제어기는 제어 알고리듬의 수정, 제어 대상 변경, 제어대상의 특성 변경, Man-Machine-Interface(MMI)의 변경 등에 능동적이면서 신속한 해결책을 제시하기 위하여, 제어기의 구조를 3개의 계층으로 구조화하였다. 1st layer인 하드웨어와 2nd layer인 펌웨어를 규격화하여 변경하지 않고 생산할 수 있으며, 각각의 제어 대상에 따라 달라지는 고유의 제어 알고리듬에 해당하는 3rd layer의 개발은 하위 2개의 계층에 관련 없이 독립적으로 신속히 개발될 수 있도록 하였다.

• 한국주거학회:학술대회논문집
• /
• 한국주거학회 2009년 춘계학술발표대회 논문집
• /
• pp.69-72
• /
• 2009

The purpose of this study is to analyze the characteristics of the non-sedentary in contemporary multi-housing planning through the understanding and interpretation of the modern nomadic life. A document research method was used to analyze and classified the spatial characteristics and development of the non-sedentary dwelling spaces since 20th century. Finally, today the applicable cases of non-sedentary space are as follows; the sharing housing, the adapting housing, and temporary housing for the multi-purpose spaces, huge spaces and the industrialization housing. First of all, in order to conform the concept of nomadism, the theory and characteristics were divided into three aspects; The concept of thought of lines, events and Rhisome, and the spatial characteristics of fluidity, multiplicity and the non-hierarchy, that is mainly based on the philosophy of Gilles Deleuze. This study attempted to analyze how the concept of non-sedentary dwelling space has been developed in what form and method they have been applied and interpreted in the historical background. It attempted to resolve the concept of movement and mobility through the experiment so that they might apply to the space of contemporary city.