• Environmental and Resource Economics Review
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• v.18 no.2
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• pp.311-344
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• 2009

The hypothesis that the common market equilibria for housing attributes are attained within distinctive submarkets was tested. Markets for housing attributes with greater supply flexibility, i.e., structural variables, were found to be closer to their common equilibria than markets with less supply flexibility, i.e., neighborhood and distance variables. In addition, submarkets with greater mobility were found to achieve common market equilibria for more housing attributes with greater supply flexibility, but not for housing attributes with lower degree of supply flexibility. Results suggest supply flexibility and occupier mobility are both necessary conditions for achieving common market equilibria for housing attributes.

• 사회경제평론
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• v.31 no.3
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• pp.131-163
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• 2018

The long-run equilibrium of an economy is a situation where all firms in the economy realize the condition of 'extra profits = 0'. The conventional partial equilibrium (PE) analysis, which is based on the assumption of 'ceteris paribus', conflicts logically with the long run equilibrium. 'Full industry equilibrium' (FIE) deals with long-run equilibrium in the framework of partial equilibrium; FIE requires the adjustment of more variables than PE. The comparative statics analysis of FIE shows that many results of the conventional PE does not hold. The present paper intends to introduce the background and significance of FIE. In its course, the paper discusses similarities and differences between FIE and the Capital Controversies of the 1960s and 1970s, and highlights the critical and constructive significances of FIE.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2007.11a
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• pp.413-417
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• 2007

본 논문에서는 응용서비스 제공자가 망사업자의 망을 이용하여 응용서비스를 제공하고 망사업자에게 사용대가를 지불하는 경우를 다루었다. 우리는 Stackelberg 게임을 이용하여 두 사업자간의 계약(contract)설계 문제를 정형화하였고 이 게임의 균형점 (equilbrium)이 유일하다는 것을 보였고 또 이 균형점이 망사업자의 위험선호도에 따라서 어떻게 바뀌는지를 고찰하였다.

• Proceedings of the Korean Information Science Society Conference
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• 2007.06c
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• pp.376-379
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• 2007

오늘날 컴퓨팅 기능의 급격한 발달은, 시스템의 효율뿐만 아니라 지능화에 대한 요구를 증대시키고 있다. 지능화된 서비스를 성공적으로 제공하기 위해서는, 제공하려는 도메인에 대한 지식 처리 기능이 필수적이다. 시스템의 지능적인 행동은 그 시스템이 보유하고 있는 지식의 질(質)에 영향을 받기 때문에, 사용되는 지식의 질적 우수성을 보장하려는 시도가 이루어지고 있지만, 문제는 지식의 질이 높아질수록, 지식 관리의 비용이 증가한다는 점이다. 따라서 품질과 비용 사이의 균형점을 맞추기 위한 노력이 필요하다. 이에 본 논문에서는 사용하려는 지식의 품질과 시스템에서 요구하는 지식의 품질을 비교함으로써, 이 균형점을 맞추는 방법을 제안한다. 이를 위해, 시스템이 제공하려는 서비스 시나리오를 대상 지식으로 표현 및 처리한다. 시스템 관리자는 이 결과를 바탕으로 채택하려는 지식과 자신의 시스템 사이의 괴리를 손쉽게 판단 할 수 있고, 그 차이를 없애기 위해 지식의 확장 및 축소의 부분을 결정하고, 수정할 수 있다.

• Journal of Digital Contents Society
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• v.19 no.4
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• pp.815-819
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• 2018

In this study, we investigate balance of a biped robot applying Foot Placement Estimator (FPE) in simulation. FPE method is used to determine a stable foot location for balancing the biped robot when an initial orientation of the robot body is statically unstable. In this case, the 6-DOF biped robot with point foot is modelled considering contact and friction between foot and the ground. For simulation, the mass of the robot is 1 kg assuming the center of robot mass (COM) is located at the center of the robot body. The height from the ground to the COM is 1 m. Robot balance is achieved applying stable foot locations calculated from FPE method using linear and angular velocities, and the height of the COM. The initially unstable angular postures, $5^{\circ}$ and $-5^{\circ}$, of the robot body are simulated. Simulation results confirm that the FPE method provides stable balance of the robot for all given unstable initial conditions.

• Therapeutic Science for Rehabilitation
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• v.2 no.1
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• pp.77-86
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• 2013

Objective : The purpose of this study is to assess affects of pilates exercise program on balance ability and ADL performance ability of patient with chronic cerebellum infarction. Methods : The object of this study K-hospital located in daegu, 62-year-old woman who have receiving inpatient treatment with cerebellum infraction. Before and after the intervention in order to compare balance ability was assessed using berg balance scale(BBS) and ADL performance ability was assessed by modified barthel index(MBI). Results : Balance ability of the object score improved from 19 to 29, the ADL performance ability score increased from 74 to 87. Conclusion : The result of this study pilates exercise program in patients with chronic cerebellum infarction balance ability and ADL performance ability to promote was found that the effect. this pilates exercise program in the occupational therapy, if appropriately utilized more on the functional recovery of patients is expected to be helpful.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.11
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• pp.5087-5093
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• 2011

The purpose of this study was to investigate the balance reaction characteristics of dementia patients. Under the object of 30 dementia patients, they were divided into moderate group and severe group and examined the correlation among Clinical test of sensory interaction and balance(CTSIB), Berg balance scale(BBS) and Bathel index(BI) according to perceptional function. As a result, CTSIB was no significant difference between severe group and very severe group and BBS was significant difference between severe group ($47.32{\pm}4.80$) and very severe group ($43.09{\pm}4.18$)(p<0.05) and BI was significant difference between severe group ($92.89{\pm}9.33$) and very severe group ($76.82{\pm}6.81$)(p<0.05) and significant correlation among perceptional function, BBS and BI(p<0.05, p<0.01). Therefore, these results should be used the base data of developing rehabilitation program or protection management for dementia patients.

• Proceedings of the KIEE Conference
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• 2007.07a
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• pp.838-839
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• 2007

전력산업의 시장구조는 과점형태의 불완전 경쟁의 구조로 해석하는 것이 일반적이다. 또한 전기의 물리적 특성상 송전선로에서는 전력손실이 발생하게 되는데, 본 논문은 과점시장 모델로서 쿠르노(Cournot)모델을 사용하여 손실을 포함한 내쉬 균형점을 해석한다. 지역별 한계가격(Locational Marginal Price ; LMP)와는 달리 계통한계가격(System Marginal Price ; SMP)는 손실에 대한 가격신호를 시장에 반영하기 어렵기 때문에 손실과 함께 한계송전손실계수(Marginal Loss Factor ; MLF)를 적용하여 균형상태의 시장거래가치를 비교분석한다.

• The Science & Technology
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• s.525
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• pp.10-13
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• 2013

• Journal of Venture Innovation
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• v.7 no.1
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• pp.183-200
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• 2024

Recently, with the MZ generation's entry into society and the social participation of the female population, conflicts are occurring between workplace groups that value WLB and existing groups that emphasize collaboration due to differences in work orientation. Public institutions and companies that utilize work-life balance support systems show differences in job Commitment depending on the nature of the work and the activation of the support system. Accordingly, it is necessary to verify the effectiveness of the WLB support system actually operated by the company and present universally valid standards. The purpose of this study is, first, to verify the effectiveness of the support system for work-life balance and to find practical consensus amid changes in policies and perceptions of the working environment. Second, the influence of work-life balance level and job immersion according to work characteristics was analyzed to verify the mutual influence in order to establish standards for WLB operation that reflects work characteristics. For the study, a 2X2 matrix model was used to analyze the impact of work-life balance and work characteristics on job commitment, and four hypotheses were established. First, analysis of the job involvement level of conflict-type group members, second, analysis of the job involvement level of leading group members, third, analysis of the job involvement level of agreeable group members, and fourth, analysis of the job involvement level of cooperative group members. To conduct this study, an online survey was conducted targeting employees working in public institutions and large corporations. The survey was conducted for a total of 9 days from October 23 to 31, 2023, and 163 people responded, and the analysis was based on a valid sample of 152 people, excluding 11 copies that were insincere responses or gave up midway. As a result of the study's hypothesis testing, first, the conflict type group was found to have the lowest level of job engagement at 1.43. Second, the proactive group showed the highest level of job engagement at 4.54. Third, the conformity group showed a slightly lower level of job involvement at 2.58. Fourth, the cooperative group showed a slightly higher level of job involvement at 3.80. The academic implications of the study are that it subdivides employees' personalities into factors based on the level of work-life balance and nature of work. The practical implications of the study are that it analyzes the effectiveness of WLB support systems operated by public institutions and large corporations by grouping them.