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허순(Soon Heo),손권(Kwon Son),박정홍(Jung Hong Park),이성재(Sung Jae Lee) Korean Society for Precision Engineering 2006 한국정밀공학회지 Vol.23 No.3
The degenerative lumbar spinal stenosis (DLSS) is a disease inducing low back pain, leg pain, convulsion, numbness, and neurogenic claudication from compression of nerve root. Intervertebra fixation was reported to increase the degeneration of neighbor region after treatment. Recently, a new surgical technique of inserting a fixator between interspinous processes has been introduced. The purpose of this study is to design the interspinous process fixator with flexibility to complement the trouble of using fixator in DLSS. This study evaluated the existing fixator through the mechanical test and modified it using the finite element analysis (FEA). The evaluation was based on the displacement, stiffness and von-Mises stress obtained from the mechanical test and calculated from the FEA in the biomechanical loading condition. Effects of variation in length and thickness were investigated to design an optimal fixator. Three prototypes were manufactured using FEA results, Mechanical tests under the biomechanical loading condition were performed to select the best one from these three. The selected fixator increased flexiblity by 32,9%.
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연삭가공조건에 따른 티타늄 합금의 물성치 향상에 관한 연구
김원일(Won Il Kim),이윤경(Yun Kyung Lee),왕덕현(Duck Hyun Wang),허순(Soon Heo) 한국산업융합학회 2001 한국산업융합학회 논문집 Vol.4 No.3
Ti-6Al-4V alloy can be obtained the stability of organization and product treasure, the evaluation of the cutting ability and the mechanical characteristics after the heat treatment of annealing, solution and aging. The difficulty in machining titanium alloy is how treat the heat generated during the process. Because the heat conductivity of titanium alloy is regardfully low, the heat generated during grinding is accumulated in workpiece. and it causes the increasing of grinding wheel grits' wear and makes the ground surface rough. So, these characteristics in grinding of titanium alloy will change the mechanical properties of the titanium alloy. From this study. the mechanical characteristics of annealed one and solution and aging one treated Ti-6AI-4V alloy after grinding was concerned with checking out the bending strength and hardness. For the result, both of bending strength and hardness were increased at the burned area on the surface. Roughness value was remarkably high at the table speed of 10m/min.<br/> <br/>
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백화점 판매원의 목표지향성과 성과에 미치는 판매관리자의 영향 : 패션제품 판매원을 중심으로
박경애,허순임,사공수연,신수임 한국의류학회 2000 한국의류학회지 Vol.24 No.1
This study investigated the effects of sales supervisors on salespeople s goal orientations and sales performance in fashion retail setting. Specifically, it examined: 1) the differences in salespeople s goal orientations by salespeople characteristics; 2) the effects of supervisors behavioral orientations on goal orientations of salespeople; and 3) the effects of salespeople s goal orientations on performance. A total of 343 questionnaires collected from salespeople in various apparel and accessory selling departments at four department stores in Korea were analyzed. Variables included supervisor's behavioral orientations(endresults, activity and capability), salespeople's goal orientations (learning and performance), sales performance and salespeople characteristics. MANOVA revealed that there was no difference in goal orientations by salespeople characteristics except by selling department. Multiple regression analysis revealed that supervisor's end-result orientation affected salespeople's learning orientation and performance orientation while activity and capability orientations did not. Learning orientation of salespeople affected performance while performance orientation did not. The study suggests that for long-term performance supervisors and retail organizations need to develop various supervisory behaviors, stimulate learning demands of salespeople, and provide training programs to achieve the learning goal.
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온라인과 오프라인의 점포속성 비교 : Online versus Off-line Stores
박경애,이영주,허순임 한국의류학회 2002 한국의류학회지 Vol.26 No.8
The purposes of this study were to examine online store attributes sought and evaluated by online shoppers and to compare those attributes with those of off-line stores. Data were obtained from an online questionnaire survey to 850 online shoppers who were randomly selected from the panel of an online survey agency, and 615 responses were analyzed. The t-tests revealed that there were significant differences on store attributes sought and evaluated by shoppers between online and off line stores. Price related attributes (i.e., low price and reasonable price) and store name were more important for online stores while product related attributes (i.e., assortment, fashion, and brand) were more for off-line stores. Price related attributes, promotion, and entertainment were highly evaluated on online stores while product related attributes and service were on off-line stores.
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