Conditions at the downstream boundary for simulations of viscous incompressible flow

The proper specification of boundary conditions at artificial boundaries for the simulation of time-dependent fluid flows has long been a matter of controversy. A general theory of asymptotic boundary conditions for dissipative waves is applied to the design of simple, accurate conditions at downstream boundary for incompressible flows. For Reynolds numbers far enough below the critical value for linear stability, a scaling is introduced which greatly simplifies the construction of the asymptotic conditions. Numerical experiments with the nonlinear dynamics of vortical disturbances to plane Poiseuille flow are presented which illustrate the accuracy of our approach. The consequences of directly applying the scalings to the equations are also considered

Aging and structural relaxation of hyper-quenched Mg65Cu25Y10 metallic glass

The structural relaxation, glass transition and crystallization processes of Mg65Cu25Y10 metallic glass are studied by Differential Scanning Calorimetry (DSC) and Mechanical spectroscopy. The relaxation model derived from the mechanical measurements is compared with the kinetics of these transformations obtained from the DSC curves. The structural relaxation kinetics is found to be controlled by the glassy dynamics following an Adams-Gibbs-Vogel function. The glass transition and crystallization kinetics are controlled by the dynamics of the supercooled melt following a Vogel-Fulcher-Tammann behaviour. The results suggest that the microscopic processes responsible of structural relaxation and aging below the glass transition correspond to the same processes generating the a-relaxation peak. (C) 2013 Elsevier B.V. All rights reserved.Peer ReviewedPostprint (author’s final draft

Truck Weight Survey Field Instructions, May 1987

The Truck Weight Survey is conducted by the Office of Transportation Inventory of the Iowa Department of Transportation, in cooperation with the Federal Highway Administration. Weighing operations are conducted biennially and provide information with regard to trends of gross weight, axle loading, axle spacing, dimensions and commodities carried by commercial vehicles using the highways in Iowa

Dimensions of perfectionism as vulnerability factors for depression in the narcissistic and obsessive-compulsive personalities : a test of a specific diathesis-stress model

Theoretical and clinical descriptions of narcissistic and obsessive-compulsive personality disorders portray individuals with these disorders as pathologically perfectionistic. Personality dysfunction has been identified as a vulnerability factor for depression. The specificity hypothesis posits that the interaction of pathological personality characteristics and stress consistent with those personality characteristics has a depressogenic effect. It was hypothesized that individuals with obsessive-compulsive and narcissistic personality styles would respond with dysphoric mood in a different manner from one another, from individuals with other personality disorder styles, and from individuals with non-dysfunctional personality styles to stress congruent with self-oriented perfectionism, other-oriented perfectionism, and socially prescribed perfectionism. It was also hypothesized that stress congruent with self-oriented and socially prescribed perfectionism would produce higher levels of dysphoria than stress congruent with other-oriented perfectionism, regardless of participant personality styles

Aerospace Medicine and Biology. An annotated bibliography. Cumulative indexes, 1952-1961 literature, volumes I-X

Subject and author cumulative indexes on aerospace medicine and biology - annotated bibliograph

La prova testimoniale e le dichiarazioni di terzi nel processo tributario

Este artículo analiza si es correcta o no la exclusión de la prueba testifical en el proceso tributario italiano.This article analyzes that it is correct or not the exclusion of testimony in the Italian tax process.Questo articolo analizza che è corretta o meno l'esclusione della testimonianza nel processo fiscale italiano.peerReviewe

Catálogo das coleções entomológicas da Faculdade de Saúde Pública da Universidade de São Paulo - (2ª Série II): Culicidae

Subfamily ANOPHELINAE: Genus Anopheles Meigen, 1818; Subfamily CULICINAE: Tribe AEDEOMYIINI: Genus Aedeomyia Theobald, 1901; Tribe AEDINI: Genus Aedes Meigen, 1818; Genus Haemagogus Williston, 1896; Genus Psorophora Robineau-Desvoidy, 1827; Tribe CULICINI: Genus Culex Linnaeus, 1758; Genus Deinocerites Theobald, 1901; Tribe MANSONIINI: Genus Coquillettidia Dyar, 1905; Genus Mansonia Blanchard, 1901; Tribe ORTHOPODOMYIINI: Genus Orthopodomyia Theobald, 1904; Tribe SABETHINI: Genus Limatus Theobald, 1901; Genus Phoniomyia Theobald, 1903; Genus Runchomyia Theobald, 1903; Genus Sabethes Robineau-Desvoidy, 1827; Genus Shannoniana Lane e Cerqueira, 1942; Genus Trichoprosopon Theobald, 1901; Genus Wyeomyia Theobald, 1901; Tribe URANOTAENIINI: Genus Uranotaenia Lynch Arribalzaga, 1891.Subfamília ANOPHELINAE: Gênero Anopheles Meigen, 1818; Subfamília CULICINAE: Tribo AEDEOMYIINI: Gênero Aedeomyia Theobald, 1901; Tribo AEDINI: Gênero Aedes Meigen, 1818; Gênero Haemagogus Williston, 1896; Gênero Psorophora Robineau-Desvoidy, 1827; Tribo CULICINI: Gênero Culex Linnaeus, 1758; Gênero Deinocerites Theobald, 1901; Tribo MANSONIINI: Gênero Coquillettidia Dyar, 1905; Gênero Mansonia Blanchard, 1901; Tribo ORTHO-PODOMYIINI: Gênero Orthopodomyia Theobald, 1904; Tribo SABETHINI: Gênero Limatus Theobald, 1901; Gênero Phoniomyia Theobald, 1903; Gênero Runchomyia Theobald, 1903; Gênero Sabethes Robineau-Desvoidy, 1827; Gênero Shannoniana Lane e Cerqueira, 1942; Gênero Trichoprosopon Theobald, 1901; Gênero Wyeomyia Theobald, 1901; Tribo URANOTAENIINI: Gênero Uranotaenia Lynch Arribalzaga, 1891

Modelos de Gestão de empresas sociais, em particular das coperativas: estudos de caso em Portugal

Mestrado APNORA afirmação da Economia Social e a promoção das Empresas Sociais como solução organizativa, nas quais se integram as cooperativas, possibilitaram ao movimento cooperativo renovados mecanismos para o seu crescimento. Na verdade, apesar de ser um modelo que percorreu vários séculos, são-lhe apontadas insuficiências que conduzem à sua ineficiência enquanto modelo, sendo recorrentemente apresentada a gestão como fator causador das suas fragilidades. Neste sentido desenvolveu-se um estudo que intenta compreender o modelo cooperativo pela gestão, observando a realidade apresentada na literatura e perscrutando o caminho a seguir para um modelo sustentável do ponto de vista económico, financeiro e social. Para cumprir este objetivo analisou-se o modelo cooperativo teórico, identificando as suas particularidades e delimitadores que incidem sobre o decurso da sua gestão, realizando-se uma caracterização do seu modelo de gestão. Recorreu-se a estudos de caso de cooperativas portuguesas para compreender o comportamento do enquadramento teórico definido em casos reais. Através da análise de estudos de caso foi possível relacionar os valores e princípios com o desenrolar da gestão, a governança democrática como propiciador de um maior nível de comprometimento entre cooperadores e com a organização, refletindo níveis elevados de satisfação, democracia e igualdade. Configurando-se estas cooperativas numa resposta às necessidades dos cooperadores e comunidade. As suas fragilidades centram-se na insuficiente consciência da sua “vantagem cooperativa” nem sempre entendida pelos seus membros, pela comunidade e envolvente estatal. Persistem dificuldades de financiamento, encontrando-se demasiado centradas no apoio externo comunitário e estatal. Apesar da necessidade de um trabalho contínuo e forte comprometimento para garantir a sua subsistência, os modelos cooperativos analisados revelaram que persistem há já mais de uma década e que continuam a desenvolver a sua atividade assente na convicção do valor do seu trabalho para a cooperativa, para a comunidade e para a promoção dos seus valoresThe statement of Social Economy and the rise of Social Enterprises as an organizational solution, in which are co-operatives, has brought up to co-operative movement renewed mechanisms for its growth. In truth, although the model has made a course throughout the centuries, there are insufficiency point out that drive to an inefficiency as a model, being management frequently presented as a cause of their fragilities, in this sense its presented a study that attempts to understand the cooperative model through management, looking at the reality in literature and peering the way for an economic, financial and social sustainable model. To achieve this goal it has been analyze the cooperative theoretical model, identifying its particularities and delimiters that fall on their management course, using multiple case studies of Portuguese Co-operatives to understand the behavior of the defined theoretical framing in concrete cases. Through the case study analyses it was possible to relate the values and principles with the management unwind, the democratic governance as a propitiator of a higher level of commitment between the cooperators and with the organization, reflecting higher levels of satisfaction, democracy and freedom. Representing these co-operatives an answer to the cooperators and community needs. Its fragilities are focus on the insufficient awareness of the “co-operative advantage” not always understood by their members, by the community and by the government. The financing difficulties persist, which are too centralized on European and government external support. In spite of the need of a continuous work and strong commitment to ensure its subsistence, the Cooperative models analyzed reveal that they have existed over a decade and continue to develop its activity grounded on the value of their work for the Co-operative, for the community and for the promotion of their value