Numerical static analysis of the curtain wall with light steel structure

This paper presents a numerical analysis of the effect of wind on the curtain wall in a high building. Two types of curtain wall were adopted: made of thin-wall C sections with nominal dimensions and the section that takes into consideration lower limits specified by the manufacturer

The extended states in disordered 1D systems in the presence of the generalized NN-mer correlations

We have been investigating the problem of the Anderson localization in a disordered one dimensional tight-binding model. The disorder is created by the interaction of mobile particles with other species, immobilized at random positions. We introduce a novel method of creating correlations in the optical lattices with such a kind of disorder by using two different lattices with commensurate lattice lengths to hold two species of the particles. Such a model, called the generalized random $N$-mer model leads to the appearance of multiple extended states in contrary to a localization of all states usually expected in one dimension. We develop a method, based on properties of transfer matrices which can be used to determine the presence of extended states and their energies for that class of correlations. Analytical results are compared with the numerical calculations for several cases which can be realized in cold-atom experiments.Comment: 6 pages, 5 figure

Toward a Real Simple Taxonomy: Bridging Learners and Content to Create New Value at LearnPhilanthropy

LearnPhilanthropy is bringing together the wealth of research, resources and ideas on good practice from sources across the sector: Imagine a farmer's market providing fresh products from a variety of producers, all in one place, as well as a gathering place where practitioners of all kinds can come together to exchange "recipes" and learning perspectives. A general purpose taxonomy is needed to help make these resources more widely accessible. Yet we've found that a general-purpose taxonomy on grantmaker learning just plain doesn't exist. Our research to date -- conducted in partnership with our Planning Committee, Content Partners, workgroup members and others in the field -- has turned up taxonomies mostly for specific audiences or grantmaker types.For this reason, LearnPhilanthropy developed a general-purpose taxonomy, with an iterative and highly collaborative approach -- more user-generated folksonomy than the traditionally hierarchical taxonomy -- and broad review at each iteration stage. We see this Real Simple Taxonomy as a living document, and encourage ongoing co-creation and co-ownership within the LearnPhilanthropy community

Analysis of a selected node of a truss made of cold-rolled sections based on the finite element method

The study presents a comparative analysis of displacements and reduced stresses that occur in the selected node of a truss made of cold-rolled sections. Computations were based on the finite element method using the Autodesk ROBOT Structural Analysis and ANSYS Academic Research Mechanical software. Analysis of the status of the selected node was performed for permanent and variable loads