http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
On the Relations Between □(R^n)^* and K{M_T}^* Spaces
박재균 空軍士官學校 1982 論文集 Vol.15 No.-
Ⅰ. M. Gelfand 와 M. Shilov 는 K {M_P} 공간을 정의하고 그 성질을 연구하였다〔5〕. 그러나 그들은 이 공간의 쌍대에 대하여는 언급하지 않았다. 본 논문에서는 이 공간의 쌍대와 Test 함수공간 사이의 집합적 관계를 규명하고 일반적인 K {M_P} 공간에 있는 임의의 원소는 유계인 복소수측도의 유한개의 합으로 표시될 수 있음을 보이고, 이 공간은 유한개의 유계인 복소수측도를 미분한 것의 집합과 대응될 수 있음을 보였다.
Optimal Design of an Arch Bridge with High Performance Steel for Bridges using Genetic Algorithm
박재균,Yun-Hee Chun,이정휘 한국강구조학회 2016 International Journal of Steel Structures Vol.16 No.2
An optimal design of a steel arch bridge was performed in this study, to measure the effect of high performance steel for bridges (HSB), which was developed in Korea. A basic design was performed first, using SM520 only, which is a conventional rolled steel. Then, another steel arch bridge satisfying the same design requirement was designed using HSB only, which provided information for deciding on the proper shapes of cross section of various members. In the final stage, bridge members experiencing relatively high stress with respect to the yield stress, such as arch rib, main frame, and cross beam, were chosen to be made of HSB while other members were made of SM520. A genetic algorithm was used with the aims of minimizing the material cost of the major steel members. Limit stress and limit deflection were applied as constraints, according to the design specifications. By selectively choosing HSB, which has a relatively high allowable stress compared to general steel, it was concluded that the cross sectional area of the whole structure decreased and the material cost of the steel members also decreased, even considering the higher price per unit mass for HSB than that for SM520. To investigate the deterioration in dynamic performance due to the increased slenderness of steel members when HSB is used, an earthquake analysis was done. No meaningful change in the dynamic performance was found.