Spiraled channels improve heat transfer between fluids

Spiral flow channels increase heat transfer between two fluids in a countercurrent heat exchanger of given volume. The heat exchanger is constructed by connecting a spiraled bellows-shaped ducting between two concentric cylindrical tubes

The structure of the space of affine Kaehler curvature tensors as a complex module

We use results of Matzeu and Nikcevic to decompose the space of affine Kaehler curvature tensors as a direct sum of irreducible modules in the complex settin

Modelagem e desenvolvimento de interface web para banco de dados de genótipos e fenótipos de animais usando o framework Django e a linguagem Python.

Para realizar avaliações genéticas em programas de melhoramento genético animal é necessário coletar e armazenar uma grande quantidade de dados de fenótipo, pedigree, genótipos, índices econômicos associados a sistemas de produção, entre outros; deixando-os disponíveis para posterior análise. Visando faciliar a manipulação de parte desses dados, decidiu-se por construir uma interface web para edição e visualização desses dados

Scalar form factors and nuclear interactions

The scalar-isoscalar term in the two-pion exchange $NN$ potential is abnormally large and does not respect the hierarchy of effects predicted by chiral perturbation theory. We argue that this anomaly is associated with non-perturbative effects, which are also present in the $\pi N$ scalar form factor.Comment: Talk given at the 20EFB, Pisa, Italy, September 2007. 3 pages and 4 figure

Exploring universality in nuclear clusters with Halo EFT

I present results and highlight aspects of halo EFT to loosely bound systems composed of nucleons and alpha particles, with emphasis on Coulomb interactions.Comment: 3 pages, 2 figures, talk given at the 21th European Conference on Few-Body Problems in Physics, Salamanca, Aug. 29th - Sep. 3rd, 201

Sobrevivência e crescimento de doze espécies de eucalipto em Dois Vizinhos, Paraná.

Edição dos Anais do Congresso Florestal Brasileiro, 6., 1990, Campos do Jordão

Avaliação da qualidade da madeira através de infravermelho próximo (NIRS).

Resumo

Um modelo orientado a objetos para o cálculo da estimativa da área acessível a solvente.

Estimativa da ASA. Descrição do método utilizado. Modelo orientado a objetos proposto.bitstream/CNPTIA/10655/1/doc46.pdfAcesso em: 29 maio 2008

População base de Araucaria angustifolia, em Colombo, PR.

bitstream/item/101413/1/1984-PA59-Rotta-PopulacaoBase.pd

Electric Dipole Moments of Light Nuclei From Chiral Effective Field Theory

We set up the framework for the calculation of electric dipole moments (EDMs) of light nuclei using the systematic expansion provided by chiral effective field theory (EFT). We take into account parity (P) and time-reversal (T) violation which, at the quark-gluon level, originates from the QCD vacuum angle and dimension-six operators capturing physics beyond the Standard Model. We argue that EDMs of light nuclei can be expressed in terms of six low-energy constants that appear in the P- and T-violating nuclear potential and electric current. As examples, we calculate the EDMs of the deuteron, the triton, and 3He in leading order in the EFT expansion