The Rayleigh collapse time is the it would take to shrink an empty spherical bubble in infinite liquid domain zero size, which a function of ambient pressure and initial radius. If solid boundary located vicinity shrinking or collapsing bubble, then flow hindered, such that prolonged. This can be quantified with prolongation factor $k$ . Here, we provide for intermediate smallest wall stand-off...

Despite the extensive use of cement–bentonite in contaminated land containment applications, there are still many challenges related to durability. The development self-healing materials could provide more resilient, sustainable and reliable cut-off walls with significantly enhanced durability, reduced maintenance costs, safety protection against sudden or undetected failure. objective this stu...

본 논문에서는 BIM을 활용한 흙막이 시스템을 개발하고 소개한다. 선행 연구 분석을 통해서 BIM 이루는 기술들에 대한 조사를 바탕으로 요소 기술들을 개발하였다. 첫 번째 기술로, 및 표준 등을 활용해 BIM라이브러리를 구축하여 범용성과 재사용성을 확보하였다. 두 번째로, 토공 2D 기반의 물량 산출법들을 분석하고 시스템으로 활용하되 추가로 IDW 보간법을 활용하여 지형 생성 토공량 산출 구축하였다. 세 산출을 위한 4가지 수식을 제안하여 객체마다 각각 다르게 산출법을 적용하여 이후, 시스템에서 산출되는 물량산출서와 기반 물량산출서와의 비교와 검증을 시스템이 앞으로 나아가야할 방향과 한계에 대해 알아보았다.

Frontal sinus fractures are of surgical importance because of the microbial flora covering the frontal air sinus and it's proximity with the duramater and brain. There is an increased risk of meningitis when fracture of the posterior wall of the frontal sinus is associated with a dural tear. In this condition, communication occurs between the contaminated space of the air sinus and the intr...

We investigate the scattering of fermions off domain walls at the electroweak phase transition in presence of a magnetic field. We consider both the bubble wall and the kink domain wall. We derive and solve the Dirac equation for fermions with momentum perpendicular to the walls, and compute the transmission and reflection coefficients. In the case of kink domain wall, we briefly discuss the ze...