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유사 공간구조로 조성된 신도시 보행 몰의 이용행태 특성 비교 분석 - 분당 서현지구의 동·서 보행 몰을 중심으로
박준서 ( Park Joon-seo ) 한국경관학회 2012 한국경관학회지 Vol.4 No.2
본 연구는 비슷한 시기에 유사한 형태로 조성된 두 공간의 이용 특징을 규명하고자 한 것이다. 분당 신도시의 서현 지구 내 두 보행 몰을 대상으로 물리적 및 행태적 특징을 분석하였다. 이를 위하여 현장조사, Time Lapse Camera 기법과 설문조사를 공간 및 이용자를 대상으로 실시하였다. 분석의 결과를 요약하면 다음과 같다. 1) 두 공간 모두 유사한 공간구조를 갖추고 있으나, 변동 가능한 시설들에 있어 분명한 차이가 나타났다. 동쪽 몰이 판매, 식음 및 주점들이 더 많이 입점하고 있었다. 2) 두 보행 몰 모두 단순한 이용행태를 보이고 있으나, 밀도와 이용행위의 정도에 있어서는 동·서 간에 확연한 차이를 보였다. 동측의 이용밀도가 더 높고, 이용자수가 많으며, 이러한 차이는 야간에 더욱 두드러지게 나타난다. 3) 두 보행 몰의 차이의 원인을 분석한 결과, 서측보다 동측에 사람을 유인하는 시설이 많음으로 인해 이용밀도가 높게 나타나는 것으로 판단된다. 결론적으로, 본 연구를 통해 이 두 보행 몰은 공간의 물리적 구성은 유사하나, 세부 시설의 구성과 그 이용의 패턴에 있어 서로 다른 특성을 지니는 공간임을 규명하였다. The purpose of the study is to find out the characteristics of how people use two spaces, which had been constructed in a same time and have similar form. This study analyzed physical and behavioral phenomena of two pedestrian malls in Seohyun district, Bundang new town. I carried out field survey, time-lapse-camera method and questionnaire survey. The results of analysis are summarized as follows; 1) The form of both sites are similar to each other but changeable facilities are different. The east mall have a lot more small stores, restaurants and bars then the west mall. 2) Both sites have simple behavioral pattern but their density of crowds and number of user are different according to time and each malls. The density of crowds of east mall is much higher than the west. These tendency of difference become more evident in night time. 3) The east mall have more frequently used facilities, so is more crowded than the west. As a result, the east and west mall are similarly structured spaces but differently characterized spaces by physical components and behavioral pattern.
규칙적인 에어로빅 운동에 따른 여자 대학생들의 심폐능력과 체력에 관한 연구
박준기(Joon Ki Park) 한국사회체육학회 1997 한국사회체육학회지 Vol.7 No.-
The purpose of this study was to estimate the effects of aerobic exercise on cardiopulmonary function and physical fitness. Heart rate, blood pressure, respiratory rate, tidal volume, vital capacity, breathing holding time and grip strength, standing long jump, sit up, trunk extension were estimated at rest in 89 female college students(exercise group=52, control group=37). Exercise group participated in 50min, of aerobic exercise at 60% of the heart rate max. 5 days per week 1 year more. The results obtained were as follows; 1. Heart rate and blood pressure showed no significant defference between exercise group and control group. 2. Respiratory rate and tidal volume showed significant difference between two group. 3. Vital capacity and breathing holding time increased significantly at exercise group. 4. Grip strength, sit up, trunk extension increased significantly at exercise group. 5. Standing long jump showed no significant difference between two group. 6. Aerobic exercise may be improve cadiopulmonary function and enhances grip strength, agility and flexibility.
3D적층/절삭 하이브리드가공기의 구조최적화에 관한 연구
박준구(Joon-Koo Park),김은중(Eun-Jung Kim),이춘만(Choon-Man Lee) 한국기계가공학회 2021 한국기계가공학회지 Vol.20 No.2
In the recent fourth industrial revolution, the demand for additive processes has emerged rapidly in many mechanical industries, including the aircraft and automobile industries. Additive processes, in contrast to subtractive processes, can be used to produce complex-shaped products, such as three-dimensional cooling systems and aircraft parts that are difficult to produce using conventional production technologies. However, the limitations of additive processes include nonuniform surface quality, which necessitates the use of post-processing techniques such as subtractive methods and grinding. This has led to the need for hybrid machines that combine additive and subtractive processes. A hybrid machine uses additional additive and subtractive modules, so product deformation, for instance, deflection, is likely to occur. Therefore, structural analysis and design optimization of hybrid machines are essential because these defects cause multiple problems, such as reduced workpiece precision during processing. In this study, structural analysis was conducted before the development of an additive/subtractive hybrid processing machine. In addition, structural optimization was performed to improve the stability of the hybrid machine.
규칙적인 조깅운동이 40대 남성들의 호흡순환기능과 혈청지질에 미치는 영향
박준기(Joon Ki Park) 한국사회체육학회 1998 한국사회체육학회지 Vol.9 No.-
The purpose of this study was to investigate the effects of routine jogging exercise on cardiorespiratory function and blood lipid in 40 years` korean men. The subjects consisted of 21 middle-aged routine jogging group participated 30-40 min at 70% of the heart rate max 3~4 days per week 1 year more and 22 control group. The results of this study were as follows 1. The HR rest was decreased and HR max was increased by routine jogging group while no significant. 2. Vo_2 max was significantly increased in routine jogging group(p<0.05) while SBP and DBP were not changed. 3. Fat% was no significantly decreased in jogging group. 4. TC and LDL-C were significantly decreased in jogging group(p<0.05). 5. HDL-C was significantly increased in routine jogging group(p<0.05). 6. HDL-C/LDL-C ratio was significantly high in routine jogging(p<0.05) and TC/HDL-C ratio was significantly low in routine jogging group(p<0.05). This results indicate that routine jogging exercise decreases the risk of degenerative diseases. 40 years` middle-aged man must improve their cardiorespiratory function for protecting and recovering of degenerative diseases.