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축구 골 정면에서 우측 모서리로 인스텝 슛팅 시 임팩트 순간의 운동 역학적 분석
오근영 한국레져스포츠학회 2000 한국레져스포츠학회지 Vol.4 No.1
As subjects of university soccer players, to examine kinetic variables of body segments on impact in impact shoot from the goal forward to the right corner in soccer, the result of analysis by using three dimensional cinematographic equipment and force-platform is as follows. 1. The taking time to the impact point in shoot motion represented 0.09 second. 2. The distance between the support foot and the ball in impact for the X and Y axes presented 0.445m and 0.140m, respectively. 3. The degree of angle for the shoulder rotation, upper back and forth slope, trunk side slope, hip rotation, hip slope, hip-,joint, and knee-joint in impact were 29.22。 , 5.15。 , 5.73。 , 9.74。 , 14.32。 , 126.63。 and 135.80。 , respectively. 4. The velocity for the C.O.G, hip-joint, knee-joint, and ankle-joint in impact were 3.83m/s. 3.llm/s. 6.16m/s and 13.34m/s, respectively. Immediately after the impact, the maximum ball velocity was 24.03m/s. 5. The C.O.G displacement for the X, Y, and Z axis in impact represented 1.44m, 1.56m and 0.89m, respectively. 6. The absolute angular momentum of all over the body in impact was 8.99 kg m^2 /s. 7. The ground reaction force in impact for the left side ( Fx ) , back side ( Fy ) , and vertical side(Fz) acted -198.16N,-552.48N, and 1,581.76N, respectively.
Factors Influencing Body Image in the Aging Process
오근영,MARY LYNN DAMHORST 대한가정학회 2008 International Journal of Human Ecology Vol.9 No.2
This study examined the personal and relational factors influencing the formation of body image among older persons.Aging-related physical changes, health, marital relationship,cognitive age, and mo ods were personal and relationship factors explained for influence on the body image of older persons. Data were collected via a mail survey of older married couples residing in three U.S. metropolitan areas of Florida. A total of 94 married couples who were 60 years older participated in this study. Results indicated that agingrelated physical changes, effect of physical changes on the self, self-assessed health, and evaluation of spouse’s attractiveness, and perceived attractiveness (one’s perception of the other spouse’s appraisals of his or her attractiveness) were found to be significantly related to the body image of older men and women. For men, self-assessed health, evaluation of spouse’s attractiveness, and perceived attractiveness were significantly related to body image while physical changes, effect of physical changes, and perceived attractiveness were found significant for women. The feelings of older persons about and satisfaction with their bodies and appearance were estimated by aging-related and relationship-related variables.
A hierarchical model of self-determined motivation for thrift shopping behavior
오근영,최윤정 복식문화학회 2017 服飾文化硏究 Vol.25 No.3
A consumer is an individual entity with various motivations. This study is intended to incorporate a hierarchical structure of motivation to understand self-determined motivation for purchasing secondhand merchandise at thrift stores. A conceptual model adopted from Cadwallader et al. (2010)’s comprehensive model of motivation used in a marketing context was developed to investigate motivational process in secondhand merchandise shopping. The conceptual model includes the three levels of motivational structure?the global, contextual (environmental concern and frugality), and situational motivation. A series of the causal relationships among the three levels of self-determined motivations and buying intention to shop at thrift stores were hypothesized. A total of 219 respondents from two different northeastern state universities in the U.S. completed a self-administered survey. The results indicated that secondhand merchandise shopping is well explained in the hierarchical structure of self-determined motivation where the global motivation had a positive impact on the contextual motivations regarding environmental concern and frugality. Of the two contextual motivations, only environmental concern had a positive impact on situational motivation for shopping at thrift stores. Finally, the situational motivation positively influenced the intention to shop at thrift stores. The results of this model suggest that the hierarchical structure of self-determined motivation would be a very useful framework to understand consumer behavior for apparel shopping. Also, further research can be done to identify other contextual motivational factors to understand consumer motivation for shopping at thrift stores.
An Analytical Study on Structural Performance Evaluation of Coupled Steel Plate Shear Wall Systems
오근영,Heonjun Ha,Byeonghyeon Jo,이강민 한국강구조학회 2019 International Journal of Steel Structures Vol.19 No.1
The purpose of this study was to evaluate the structural performance of coupled steel plate shear walls (SPSWs) using fi nite element analysis (FEA). SPSW systems have good ductility and energy dissipation capacity and are known to have the advantage that the structure weight can be reduced by using thin steel plate. Although a coupled SPSW system is composed of two SPSW systems and a coupling beam that connects them, there have been almost no studies on the structural performance of coupled SPSW systems. Therefore, in this study, after the eff ectiveness of the FEA model was verifi ed based on a previous experimental study, parametric analytical studies were conducted using variables such as bay width and coupling beam length. The parametric studies showed that the model with a medium bay width achieved better structural performance and ductility capacity than other models. Also, in comparison to models with diff erent coupling beam lengths, although the model with a short coupling beam showed superior strength, variation of coupling beam length did not result in a signifi cant diff erence.
Cyclic Testing of Steel Column-Tree Moment Connections with Weakened Beam Splices
오근영,Rui Li,Liuyi Chen,홍성빈,이강민 한국강구조학회 2014 International Journal of Steel Structures Vol.14 No.3
Traditionally, the beam splice assemblies of column-tree connections are designed according to the full-strength designprinciple. Actually, the beam splice is set up at a certain distance from the column face, thus the plastic moment capacity ofthe beam splice does not need to be greater than the plastic moment capacity of the beam. This paper experimentally presentsthe effects of the weakened beam splice on the seismic performance of column-tree steel moment connections. Cyclic tests oftwo column-tree connection specimens with weakened beam splices and one specimen following the full-strength designprinciple were conducted to verify their inelastic behavior and failure modes. The test results showed that the moment resistingcapacity of the column-tree connection specimens with weakened beam splices did not obviously decrease. Also, their energydissipation capacity was better than that of the specimen following the full-strength design principle.
오근영,이동언 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1(계획계)
The architecture interpenetrated by human being is based on everydayness, life and tradition which have been possessed by the consciousness of human from the past to the present diachronically. However, author-central and receiver-central works with ignoring that foundation cannot make the communication between the author and receiver because the former excludes the receiver and the latter does the intention of author. To transform the impossibility of communication to the possibility, contemporary architecture needs the preunderstanding text the communication field of author and receiver. Therefore I would find the direction of the contemporary architecture by making the communication of author and receiver thorough the 'text' that includes the preunderstanding which maintains the tension between the past and the present.