Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Sang-jin Ma"'
Publikováno v:
Applied Sciences, Vol 12, Iss 1, p 125 (2021)
Response characteristics of small-sized laminated rubber bearings (LRBs) with partial damage and total failure were investigated. For nuclear component seismic isolation, ultimate response characteristics are mainly reviewed using a beyond design bas
Externí odkaz:
https://doaj.org/article/0a8d14fb73aa4470bd6991ff4d748f3c
Publikováno v:
Applied Sciences, Vol 11, Iss 10, p 4431 (2021)
To assure seismic isolation performance against design and beyond design basis earthquakes in the nuclear facility components, the lead inserted small-sized laminated rubber bearings (LRB), which has a 10 kN vertical design load, have been designed a
Externí odkaz:
https://doaj.org/article/31ad0de2fb864fa2987bee837c9c3369
Autor:
Soon-mi Lee, Sang-jin Ma
Publikováno v:
The Journal of Rural Society. 32:7-66
Autor:
Daeshik Park, Sang-jin Ma
Publikováno v:
The Journal of Rural Society. 29:7-32
Publikováno v:
The Journal of Rural Society. 27:59-93
본 연구는 최근 귀농·귀촌가구의 증가와 사회적 관심에 비해 역귀농·귀촌에 대한 대표성 있는 통계가 거의 전무하며 발표되는 역귀농·귀촌비율에 편차가 크다는 점에서 출발하여, 귀농·
Autor:
Duk-Byeong Park, Sang-Jin Ma
Publikováno v:
Journal of Agricultural Extension & Community Development. 23:181-193
Publikováno v:
Applied Mechanics and Materials. :1113-1116
Effect of the compressible flow characteristics inside a high-speed electromagnetic valve on the operation of the valve is investigated using a numerical simulation. The numerical simulation solves Navier-Stokes equations and heat transfer equations
Autor:
Seung-hee Nam, Sang-jin Ma
Publikováno v:
Journal of the Korean Society of International Agricultue. 27:149-157
As the share of agriculture in Korean economy has been decreasing since the 1970s, the Korean agricultural workforce has also declined and agricultural workers in their twenties and thirties have become scarce. Recent Korean agricultural labor produc
Autor:
Ki-yong Kim, Sang-jin Ma
Publikováno v:
Journal of the Korean Society of International Agricultue. 27:23-29
Publikováno v:
Contemporary Engineering Sciences. 7:1261-1269
Unsteady three-dimensional compressible flow characteristics inside a control valve are investigated using numerical simulations. The motion profiles of the armature are obtained for the given electromagnetic forces using a finite element analysis. T