In this study, we attempted to examine how the management commitment and safety communication affect the safety behavior of flight crew members while performing their duties. In addition, we attempted to examine how the individual cultural values ​​of each flight crew are involved and influenced in such influence relationships. As a result of the study, among the sub-variables of safety behavior, the relationship between commitment to safety compliance and communication was found to have no statistically significant effect (∆R2 = .049, p = .5), and the relationship between commitment to safety participation and communication was found to had a statistically significant effect (∆R2 = .088, p < .001). As a result of examining the moderating effect of individual culture values ​​in the relationship between commitment to safety participation and communication, the moderating effect of uncertainty avoidance (β = .256, p < .05) showed statistically significant results, and management's commitment/communication The interaction effect between and uncertainty avoidance had a statistically significant effect when uncertainty avoidance was low, but was not statistically significant when uncertainty avoidance was high.

독수리 11개체에 GPS를 부착하여 비행특성을 분석하였다. 한국에 월동기간은 평균 131일 (SD=17.4)이었고, 평균 비상 비율은 19.6%이었다. 비행고도는 100 m 이하가 21.6%이었으며, 101~200 m는 25.3%, 201~300 m는 19.0% 로, 300 m 이하가 65.9%이었다. 시간대별 비상률과 고도는 양의 상관관계 (r=0.929)를 보였고, 월별 비행고도 비율은 대부분 101~200 m에 가장 많은 비율을 나타냈다 (p<0.05). 월동기 독수리는 비행비율을 낮추고 300 m 이하 고도에서 비행하였다. 독수리의 넓은 행동권, 높은 비 행비율, 높은 고도 비행특성은 사회적 상호작용에 의해 먹이를 찾는 효율적인 비행방법으로 판단된다.

The flight behavior of Pieris rapae were compared to understand how temperature affects flight behavior. The effects of temperature on insect thermal performance curves are generally poorly understood but significant for understanding responses to insect gardening. Temperature is a physical factor as well as a stimulus for insects behavior. In Pieris rapae, we examine the physiological effects of temperature-dependence of flight behavior. At test temperature increased, flight speed typically increased. The maximum flight speed of P. rapae at given temperatures show a straight line relationship between 20, 25 and 30℃. Therefore, the effects of test temperature were significant for flight behavior.

NiTiZrSiSn bulk metallic glass powder was produced using inert gas atomization and then was sprayed onto a SS 41 mild steel substrate using the kinetic spraying process. Through this study, the effects of thermal energy of in-flight particle and crystallization degree by powder preheating temperature were evaluated. The deformation behavior of bulk metallic glass is very interesting and it is largely dependent on the temperature. The crystalline phase formation at impact interface was dependent on the in-flight particle temperature. In addition, variations in the impact behavior need to be considered at high strain rate and in-flight particle temperature.

In this study, we analyzed the changes in the echolocation and prey-capture behavior of the horseshoe bat Rhinolophus ferrumequinum from search phase to capture time. The experiment was conducted in an indoor free-flight room fitted with an ultra-high-speed camera. We found that the bats searched for food while hanging from a structure, and capturing was carried out using the flight membrane. In addition, it was confirmed that the mouth and uropatagium were continuously used in tandem during the capturing process. Furthermore, using Constant Frequency (CF), we confirmed that the prey catching method reflected the wing morphology and echolocation pattern of R. ferrumequinum. The echolocation analysis revealed that the pulse duration, pulse interval, peak frequency, start-FM-bandwidth, and CF duration decreased as the search phase approached the terminal phase. Detailed analysis of echolocation pulse showed that the end-FM bandwidth, which increases as it gets nearer to the capture time of prey, was closely related to the accurate grasp of the location of an insect. At the final moment of prey capture, the passive listening that stopped the divergence of the echolocation was identified; this was determined to be the process of minimizing the interruption from the echo of the echolocation call emitted from the bat itself and sound waves emitted from the prey.