This is a study of how members of a collaborative group interested in promoting convivial civilisation in human society took up exchanging practice stories – stories of doing something or seeing something done as examples of convivial backyard civilisation – in order tacitly to create an informal learning environment where practices of such a convivial backyard civilisation could seem normal, d...

When subjected to high-intensity out-of-plane seismic loading that results in the threshold value of static stability being exceeded, unreinforced masonry parapets and façades form mechanisms exhibit rigid body rocking motion before collapse. The discrete element method was used perform simulations which were compared experimental observations analytical models obtain relationships enable stiff...

The majority of previous quasi-static tests on disproportionate collapse simulated the column removal through applying concentrated load/displacement top removed until failure. However, uniformly distributed service load always exists frames. Therefore, to reflect actual condition more accurately, should be applied along beams first. Then, temporary support is gradually simulate process removal...

Researchers awarded a considerable attention to progressive collapse analysis in recent years avoid the partial or entire failure of structures. General Service Administration guidelines (GSA) established base deal with such catastrophic failure. For multi-story building, these proposed column removal scenario which one more columns different locations should be removed from structure. Then, re...

In the not so distant future, we envisage an Internet where the biggest share of capacity is used by streaming applications. To avoid congestion collapse from unresponsive flows calls for a robust and ubiquitous end-to-end multimedia congestion control mechanism, such as TCP-friendly rate control (TFRC), which provides fair sharing with the other Internet traffic. This paper therefore analyses ...

In this paper, we study the response of 2D framed structures made of rectangular cells, to the sudden removal of columns. We employ a simulation algorithm based on the Discrete Element Method, where the structural elements are represented by elasto-plastic Euler Bernoulli beams with elongation-rotation failure threshold. The effect of structural cell slenderness and of topological hierarchy on ...

Introduction: Semaphorin 3A (Sema 3A) is a secreted protein, which plays an integral part in developing the nervous system. It has collapse activity on the growth cone of dorsal root ganglia. After the development of the nervous system, Sema 3A expression decreases. Neuropilin 1 is a membrane receptor of Sema 3A. When semaphorin binds to neuropilin 1, the recruitment of oligodendrocyte precurso...