INITIAL GEOMETRIC IMPERFECTIONS AKIBAT TEKUK SINGLE CURVATURE MOMENT PADA BALOK BAJA SEDERHANA

Influence of initial geometric imperfections on the stability of thick cylindrical shells under internal pressure

Geometric imperfections in timber formwork systems

Australian Standard AS3610, ‘Formwork for concrete’, specifies Quality of Surface (QoS) criteria which limit the level of imperfection of a concrete surface. Depending on the target quality of surface finish sought, one of Class 1 Class 5, all QoS measures are assigned one or another limit stated in a statistical format. The imperfections arise because of the deflections induced in the formwork...

Ascites Incidence in Broilers

Gejala umum terjadinya sindrom ascites pada ayam broiler adalah berupa akumulasi cairan yang berlebihan di rongga peritoneal yang menyebabkan peningkatan tekanan pembuluh arteri pulmoner. Kondisi ini dapat menyebabkan kematian akibat kurangnya suplai oksigen untuk kebutuhan metabolis tubuh. Angka kematian akibat Ascites pada ayam broiler adalah sebesar 5%. Sindrom ascites dapat dicegah dengan m...

Robust topology optimization of slender structures with geometric imperfections

1. Abstract Structural topology optimization often leads to slender structures which are sensitive to geometric imperfections such as the misplacement of material. A robust approach is therefore presented in order to take into account material misplacement in topology optimization problems. A probabilistic approach to robust optimization is followed. Spatially varying geometric imperfections ar...

Mean Curvature Flow, Orbits, Moment Maps

Given a Riemannian manifold together with a group of isometries, we discuss MCF of the orbits and some applications: eg, finding minimal orbits. We then specialize to Lagrangian orbits in Kaehler manifolds. In particular, in the Kaehler-Einstein case we find a relation between MCF and moment maps which, for example, proves that the minimal Lagrangian orbits are isolated.