Simulation and Fast vulnerability analysis of a Chinese masonry pagoda

As an important historical relic of human being, masonry pagoda is the great significance in the eastern and western architectural cultures. Most of the existing masonry pagodas in China which have been seriously damaged urgently need detailed structural safety assessment, repair and reinforcement. The paper choose a Chinese masonry pagoda as a case, conducted a series simulation analysis with Abauqs. Through numerical simulation, the seismic performance of the pagoda can be evaluated, which can not only predict the hidden danger and weak link in its structure, but also provide useful reference for the reinforcement and repair of the pagoda. It also adopts a very convenient 3D CAD method to quickly assess the seismic vulnerability of existing masonry pagoda according the reference

Preliminary study on a novel Optimal Placed Sensors method based on Genetic Algorithm

The safeguarding of the historical and cultural heritage is one of the main research topics that has been addressed in recent years. Particular attention was given to the development of structural health monitoring systems that allowed the real time acquisition of different physical quantities that are stored in a cloud and compared with the health limit values of the structures obtained from numerical analysis previously carried out. One of the major problems highlighted by the use of these systems is related to the position and quantity of smart sensors to be used within the structure to be monitored. To avoid this, in this paper an Optimal Sensors Placement method was applied to a case study located in China. In particular, the positioning of the sensors was identified through an optimization workflow that adopt a Multi Objective Optimization engine called "Octopus"in Grasshopper3D. The identified optimal solutions have made it possible to detect the areas of the structure that will be subject to collapse during a seismic event

Caracterização preliminar de sementes de Paspalum almum Chase.

O gênero Paspalum reúne uma grande diversidade de espécies com valor forrageiro, caracterizando sua potencialidade como recurso vegetal útil.JAI

Ácido giberélico no tratamento de sementes de forrageiras anuais de verão.

Objetivou-se avaliar o efeito sobre a germinação e o crescimento de plântulas, do tratamento com diferentes produtos e concentrações com ácido giberélico nas sementes de espécies forrageiras anuais de verão

Caracterização preliminar das sementes de Paspalum pumilum Nees.

O gênero Paspalum inclui cerca de 400 espécies, amplamente dispersas em regiões tropicais e temperadas, especialmente no continente americano.JAI

Timelike Hopf Duality and Type IIA^* String Solutions

The usual T-duality that relates the type IIA and IIB theories compactified on circles of inversely-related radii does not operate if the dimensional reduction is performed on the time direction rather than a spatial one. This observation led to the recent proposal that there might exist two further ten-dimensional theories, namely type IIA^* and type IIB^*, related to type IIB and type IIA respectively by a timelike dimensional reduction. In this paper we explore such dimensional reductions in cases where time is the coordinate of a non-trivial U(1) fibre bundle. We focus in particular on situations where there is an odd-dimensional anti-de Sitter spacetime AdS_{2n+1}, which can be described as a U(1) bundle over \widetilde{CP}^n, a non-compact version of CP^n corresponding to the coset manifold SU(n,1)/U(n). In particular, we study the AdS_5\times S^5 and AdS_7\times S^4 solutions of type IIB supergravity and eleven-dimensional supergravity. Applying a timelike Hopf T-duality transformation to the former provides a new solution of the type IIA^* theory, of the form \widetilde{CP}^2\times S^1\times S^5. We show how the Hopf-reduced solutions provide further examples of ``supersymmetry without supersymmetry.'' We also present a detailed discussion of the geometrical structure of the Hopf-fibred metric on AdS_{2n+1}, and its relation to the horospherical metric that arises in the AdS/CFT correspondence.Comment: Latex, 26 page

Avaliações de sementes de Bromus auleticus Trinius para o estabelecimento de pastagens.

Bromus auleticus Trinius também conhecido como cevadilha vacariana, é uma gramínea perene que encontra-se no Uruguai, Argentina e no Sul do Brasil. Esta forrageira despertou o interesse de pesquisadores há mais de 53 anos. Com o objetivo de caracterizar e avaliar o efeito do armazenamento, o beneficiamento e o tratamento das sementes de Bromus auleticus como também o efeito da densidade de semeadura e estabelecimento da pastagem foram realizados uma série de experimentos

Caracterização de espécies do grupo notata do gênero Paspalum.

Dentre os gêneros de plantas forrageiras nativas do Rio Grande do Sul encontram-se as espécies do grupo Notata, como o Paspalum notatum e P. pumilum. Para caracterização destas espécies utilizaram-se quatro diferentes tratamentos para a germinação das sementes, com alternância de fotoperíodo e temperatura, construção da curva de embebição, peso de mil sementes

Preliminary study of an ancient earthquake-proof construction technique monitoring via an innovative structural health monitoring system

The historical and cultural heritage analysis of the Italian territory is of primary importance since this region is one of the richest in the world and can enrich our knowledge in different fields. In fact, in the field of structural engineering, a new discovery was made in Calabria, in the south of Italy. By investigating various architectural treatises related to earthquake-proof constructions, new knowledge was gained through analysing buildings constructed with fictile tubules bricks. Among them is an unprecedented anti-seismic construction technique patented by Pasquale Frezza, which has been widely used in southern Calabria. To prevent the collapse of the attendant structures, an innovative method for monitoring and obtaining the mechanical properties of these structures in real time while minimising the measurement uncertainty is proposed in this paper

An innovative structural health monitoring system for the preliminary study of an ancient anti-seismic construction technique

The Italian historical and cultural heritage is one of the most interesting and great in the world. The study of this heritage patrimony is bringing new discovery in the field of structural science. An ancient anti-seismic structure was discovered in Calabria region. Such structure is based on fictile tubules bricks a still not well studied construction method. In this paper we propose an innovative measurement method to investigate the mechanical properties of this anti-seismic structures