Abstract Electrons lenses produce a high-intensity electron beam and have variety of applications to circular hadron accelerators. Electron beams different transverse cross sections distributions may be designed, depending on the desired application, they are produced steered along orbit beam, overlapping with it for typical distances few meters before being deflected away disposed of. Hollow f...

Simply supported steel beams with rectangular hollow section (RHS) are investigated, taking into account large twist and cross-sections distortions. A closed-form expression for the critical value of external couple inducing lateral torsional buckling is found; homotopy perturbation method (HPM) used to investigate post-buckling non-linear path. The linear paths given by HPM compared those of: ...

The concept of an innovative bonded joining technology where welding is not required presented as alternative to traditional welded connection for steel circular hollow section (CHS). Wrapped composite joints have potential greatly improve fatigue endurance when applied in multi-membered truss structures, e.g. offshore jackets wind turbines. This paper focuses on characterization resistance and...

The paper has proposed a mathematical model for parametric optimization problem of the steel lattice portal frame. design variable vector includes geometrical parameters structure (node coordinates), as well cross-sectional dimensions structural members. system constraints covers load-carrying capacities formulated all sections members subjected to ultimate load case combinations. displacements...

Stainless steel offers a range of benefits over conventional carbon in structural applications. This paper presents the detailed numerical modelling shear response cold-formed stainless hollow flange sections using finite element software package, Abaqus. The effect geometric parameters such as section height and thickness, influence different grades were investigated following validation model...

The prime focus of this chapter is a hollow optical waveguide for integrated optics. Starting with a review of various novel hollow waveguide structures, physics and technology of tunable hollow waveguide have been presented with theory and experiments. With the flexible structure of hollow waveguide, a number of tunable optical functions can be realized; some of them are presented in the chapt...

Trees are one of the most useful plants for life on earth. However, trees can be harmful due to cavities in stem sections. Rapid detection is needed prevent several losses that may arise fallen trees. This research identified a hollow and non-hollow tree section flamboyant with sub-surface radar system. The sub surface system was modeled using Vector Network Analyzer (VNA) connected Vivaldi ant...

Steel structures are becoming more common in engineering construction as steel possesses excellent ductility, but members often vulnerable to buckling, especially under seismic or cyclic loading. Hollow structural sections (HSS) buckle locally loading due their thin walls and the need for rehabilitation strengthening is increasing. In present study, circular hollow section (CHS) have been stren...

Objective Tumour budding formed by histologically undifferentiated cancer cells beyond the border of the tumour margin is associated with lymph node metastasis. However, hollow tumour nests, a possible histologically advanced phenotype of tumour budding, have not been discussed. We examined whether hollow spheroids exist beyond the border of the invasive margin and are associated with metastasi...

The use of welded structural hollow sections in civil engineering is relatively new. Design connections steel structures with requires a more specified approach, compared to traditional achieved gusset plates. Stress and local deformations at the connection area are non-linear very complex. This paper presents application numerical analysis for determination ultimate bearing capacity “Y” connec...