10 documents found, page 1 of 1

Topology optimization of light structures using the natural neighbour radial po...

In this work, a bi-directional evolutionary topology optimization algorithm capable of reinforcing the structure at critical high stress regions is combined with the Natural Neighbour Radial Point Interpolation Method (NNRPIM). The NNRPIM uses the Voronoï diagram and natural neighbour concept to establish the background integration points, enforce the nodal connectivity, and construct the RPI shape functions. S...

Topology optimization using a natural neighbour meshless method combined with a...

Due to recent developments in the additive manufacturing industry, topology optimization is nowadays a powerful computational tool that allows to design feasible lightweight components. Although the Finite Element Method (FEM) is the most applied discretization technique, meshless methods are currently established as accurate numerical methods with relevant advantages in several engineering fields. Nonetheless,...

The Radial Point Interpolation Method combined with a bi-directional structural...

Projecting reduced-weight components with increased performance is a continuous engineering challenge, especially in the aircraft industry, where fuel consumption, emissions, and performance are highly dependent on structure weight. Nowadays, topology optimization is a growing computational technique capable of calculating optimal material configurations within a design domain and boundary conditions. Although ...

An evolutionary structural optimization algorithm for the analysis of light aut...

Purpose The purpose of the present work is to develop the combination of the radial point interpolation method (RPIM) with a bi-directional evolutionary structural optimization (BESO) algorithm and extend it to the analysis of benchmark examples and automotive industry applications. Design/methodology/approach A BESO algorithm capable of detecting variations in the stress level of the structure, and thus respon...

Bioaccumulation and biochemical patterns of Ruditapes philippinarum clams: resp...

Shellfish farming and shellfish harvesting have been practiced for a long time in the Ria de Aveiro coastal lagoon (Portugal). Among commercial bivalves, Manila clam Ruditapes philippinarum represents one of the most important species inhabiting this coastal system. Introduced in Portugal in 1984, naturalised R. philippinarum clam populations have been subjected to several pressures that may threaten this resou...

Generic and specific competences of the mentor teacher: higher education studen...

Introduction: The mentoring process is dynamic, reciprocal and reflexive, hence skills as a disposition to act in a relevant way in relation to a specific situation (Le Boterf, 2003), need to be evaluated in the mentoring processes. The mentor refers to a more experienced professional who guides, teaches, directs, supports and advises a student with less practice, playing an important role on a personal and pro...

Competências genéricas específicas professor mentor - perceção dos estudantes d...

Imigração venezuelana para Roraima: base para um estudo da Lei 13.445/17, Lei d...

Esse trabalho aborda a questão da situação do estrangeiro no território nacional à luz da Lei 13.445/2017 denominada Lei de Migração. O recente e descontrolado fluxo de migrantes venezuelanos para o estado de Roraima, em plena Floresta Amazônica e as ações de Estado empreendidas por seus Poderes Constituídos, serão, respectivamente, a base espacial e parâmetro para analisar o novel diploma e sua estrutura como ...

Amino acid contents and toxically relevant arsenic of rice varieties consumed i...

This study evaluated amino acids, antioxidant capacity, and arsenic species present in Indica and Japonica rice cultivars (Oryza sativa L.) grown in similar regions, as well as brown rice. Essential amino acids in brown rice exhibited a greater abundance when compared to white rice. Lysine was the only essential amino acid with higher concentration in white rice than in brown rice. Results showed antioxidant ac...

Correlation of amino acids profile with arsenic accumulation in rice grain (Ory...