Simple free-surface detection in two and three-dimensional SPH solver

A simple free-surface particle detection method for two and three-dimensional SPH simulation has been implemented. The method uses sphere representation for the SPH particle. The fluid domain is covered by overlapping spheres. A sphere whose surface is not fully covered considered as boundary. To test particle boundary status, we used a sum of normalized relative position vectors from neighbouring particles to the test particle. By checking the existence of un- covered sphere surface by this vector sum, boundary status of the test particle can be determined. This boundary detection method can be easily embedded in the SPH solver algorithm.Comment: 10 pages, 11 figures, Selected Paper from the International Symposium on Computational Science 201

Spectro-astrometry of V1515 Cyg

FU Orionis objects are a class of young stars with important bursts in luminosity and which show evidence of accretion and ejection activity. It is generally accepted that they are surrounded by a Keplerian circumstellar disk and an infalling envelope. The outburst would occurs because of a sudden increase in the accretion rate. We aim at studying the regions closer to the central star in order to observe the signs of the accretion/ejection activity. We present optical observations of the Halpha line using the Integral Field Spectrograph OASIS, at the William Herschel Telescope, combined with Adaptive Optics. Since this technique gives the spectral information for both spatial directions, we carried out a two-dimensional spectro-astrometric study of the signal. We measured a clear spectro-astrometric signal in the North-South direction. The cross-correlation between the spectra showed a spatial distribution in velocity suggestive of scattering by a disk surrounding the star. This would be one of the few spatial inferences of a disk observed in a FU Orionis object. However, in order to fully understand the observed structure, higher angular and spectral resolution observations are required. V1515 Cyg appears now as an important object to be observed with a new generation of instruments to increase our knowledge about the disk and outflows structure in FU Orionis objects

PENGARUH LINGKUNGAN KERJA FISIK, NON FISIK DAN KOMITMEN ORGANISASI TERHADAP KINERJA PEGAWAI PUSKESMAS LULO KABUPATEN KERINCI

Penelitian ini bertujuan untuk mengetahui Pengaruh Lingkungan Kerja Fisik, Non Fisik dan Komitmen Organisasi Terhadap Kinerja Pegawai Puskesmas Lulo Kabupaten Kerinci. Penelitian ini dirancang sebagai penelitian kuantitatif. dalam penelitian ini alat analisis yang digunakan adalah regresi linier. Kemudian digunakan analisis statistik berupa perhitungan analisis regresi linear berganda dan koefisien determinasi serta melakukan pengujian statistik dengan uji F dan uji t. Teknik pengambilan sampel dalam penelitian ini dilakukan dengan teknik total sampling sedangkan teknik pengumpulan data dalam penelitian ini menggunakan kuesioner (angket). Hasil penelitian menunjukan bahwa variabel Lingkungan Kerja Fisik tidak berpengaruh signifikan terhadap Kinerja Pegawai Puskesmas Lulo Kabupaten Kerinci, tetapi variabel Lingkungan Kerja Non Fisik dan Komitmen Organisasi berpengaruh signifikan terhadap Kinerja Pegawai Puskesmas Lulo Kabupaten Kerinci. Dan secara bersama-sama variabel Lingkungan Kerja Fisik, Lingkungan Kerja Non Fisik dan Komitmen Organisasi juga berpengaruh signifikan terhadap Kinerja Pegawai Puskesmas Lulo Kabupaten Kerinc

Alive art and the end of spectacle

O texto esboça a tese de que há um declínio do termo espetáculo, tanto em seu sentido de uso corrente, quanto na sua viabilidade como expressão das diversas formas de articulação da presença humana na arte. Para isso, sugere que a atividade artística ao vivo, nos países colonizados, constitui a base das sociedades da presença (Gumbrecht 2018), antes mesmo da chegada do invasor. O reconhecimento dessa diferença pode ser um ingrediente fundamental para promover a descolonização da arte nesses territórios, apontando possibilidades que propiciam o abandono de um modelo europeu da arte e do mundo (sociedades do sentido/da interpretação).This article outlines the thesis that there is a decline in the term spectacle both in its current sense of use and in terms of its viability as an expression of the various forms of articulation of human presence in art. For this purpose, I suggest that live artistic activity, in colonized countries, constitutes the foundation of societies of presence (Gumbrecht), even before the arrival of the invaders. Recognizing this difference can be a fundamental ingredient to promote the decolonization of art in these territories, pointing to possibilities that favor the abandonment of a European model of art and the world (societies of meaning/interpretation)

Effective interactions and phase behaviour for a model clay suspension in an electrolyte

Since the early observation of nematic phases of disc-like clay colloids by Langmuir in 1938, the phase behaviour of such systems has resisted theoretical understanding. The main reason is that there is no satisfactory generalization for charged discs of the isotropic DLVO potential describing the effective interactions between a pair of spherical colloids in an electrolyte. In this contribution, we show how to construct such a pair potential, incorporating approximately both the non-linear effects of counter-ion condensation (charge renormalization) and the anisotropy of the charged platelets. The consequences on the phase behaviour of Laponite dispersions (thin discs of 30 nm diameter and 1 nm thickness) are discussed, and investigation into the mesostructure via Monte Carlo simulations are presented.Comment: LaTeX, 12 pages, 11 figure

DA INSPIRAÇÃO SINDICAL AOS INSTRUMENTOS DE DISCIPLINAMENTO DO TRABALHO DOCENTE: RELATO DE EXPERIÊNCIA EM IES PRIVADA DE PERNAMBUCO

Universidade Federal da Paraíba UFPB (Brasil)

Avaliação da autenticidade do conjunto arquitetônico e urbanístico art decó de Campina Grande: O caso da Rua Maciel Pinheiro

A preservação do patrimônio vem ganhando cada vez mais espaço na sociedade, em Campina Grande, Paraíba- Brasil, seu centro histórico é caracterizado e conhecido pelo seu conjunto arquitetônico estilo art déco, devido à popularidade que recebeu com o conflituoso processo de remodelação que a cidade passou em decorrência da intervenção urbanística ocorrida no século XX. Por muitos anos a importância da preservação ficou esquecida na cidade, surgindo apenas com o projeto de restauro da Rua Maciel Pinheiro, o Projeto Campina Decó (Parte do Projeto Decó Sertanejo). Assim, este artigo visa analisar a autenticidade deste conjunto, considerando em que medida as intervenções, alterações, restaurações, degradações ou falseamento de algum elemento contribui ou prejudica na aceitação do patrimônio histórico local pela sociedade. Tendo tal recorte eleito considerar a super-valoração que é dada ao mesmo, em especial, as suas fachadas, além do reincidente o fato do conjunto romper um pensamento ou uma tradição, como aconteceu no seu período de formação com a imposição a nova estética arquitetônica e após o seu restauro.Tópico 3: Gestión del Patrimonio. Planificación y Gestión sustentable de los paisajes. Aspectos teóricos y metodológicos

Localización de centros de intercambio modal y plataformas logísticas

Elaboración y desarrollo de una metodología para identificar la localización y tamaño óptimo de centros de intercambio modal en una red de transporte teniendo en cuenta la demanda de transporte de mercancías, la oferta actual de cada modo de transporte y las previsiones de crecimiento. Se formulará un modelo que reproduzca los costes de distribución y que incluya las variables de decisión más significativas para las empresas de transporte. El modelo permitirá identificar la red y estructura óptima para cada escenario de costes analizado