• Bulletin of the Korean Chemical Society
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• v.28 no.2
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• pp.295-298
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• 2007

• Carbon letters
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• v.21
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• pp.93-97
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• 2017

• Proceedings of the Korean Powder Metallurgy Institute Conference
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• 2006.09a
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• pp.670-671
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• 2006

We report on the mechanical and structural properties of nanocrystalline 8% and 10% mol yttria stabilized zirconia (YSZ) obtained using mechanical alloying (MA). The as-milled powders show a body-centered cubic structure with grain sizes in the nanometer scale. After uniaxial pressing and sintering the compacts exhibit good mechanical properties. We discuss the correlation of these enhanced properties with the microstructural changes induced by heat treatment.

• Steel and Composite Structures
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• v.7 no.5
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• pp.405-419
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• 2007

This paper presents the development of some numerical models based on the results of laboratory tests performed on axially loaded RC columns strengthened with steel angles and strips. These numerical models consider the nonlinearity of the building materials and the effects of the contact interfaces between different materials. The results of the finite element models accurately describe the general behaviour of the strengthened columns. This study allows engineers to assess the relative importance of the mechanisms acting on the strengthened RC columns. Constructive recommendations are also provided in this paper.

• BMB Reports
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• v.37 no.5
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• pp.625-628
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• 2004

Homeobox genes encode a family of transcription factors that have essential roles in regulating the development of eukaryotes. Although they have been extensively studied in different phyla, relatively little is known about homeobox-containing genes and their function in molluscs. In this study, we used a polymerase chain reaction to investigate homeobox genes in the bivalve mollusc Pecten maximus. Four different homeobox sequences were identified; two were homologues of the non-Hox cluster gene caudal and the two remaining sequences had a significant homology to the ANT-C gene proboscipedia. These sequences represent the first cad and pb homologues isolated from a member of the class Bivalvia, phylum Mollusca.

• Journal of Electrical Engineering and Technology
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• v.9 no.3
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• pp.848-858
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• 2014

In this paper the construction of a model that represents the behavior of an Electric Vehicle is described. Both the mechanical and the electric traction systems are represented using Multi-Bond Graph structural approach suited to model large scale physical systems. Then the model of the controllers, represented with a functional approach, is included giving rise to an integrated model which exploits the advantages of both approaches. Simulation and experimental results are aimed to illustrate the electromechanical interaction and to validate the proposal.

• Parasites, Hosts and Diseases
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• v.60 no.3
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• pp.217-221
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• 2022

The head louse Pediculus humanus capitis (De Geer) is a hematophagous ectoparasite that inhabits the human scalp. The infestations are asymptomatic; however, skin irritation from scratching occasionally may cause secondary bacterial infections. The present study determined the presence and frequency of the knockdown resistance (kdr) mutation T929I in 245 head lice collected from Mexico, Peru, and Canada. Head lice were collected manually using a comb in the private head lice control clinic. Allele mutation at T9291 was present in 100% of the total sampled populations (245 lice) examined. In addition, 4.89% of the lice were homozygous susceptible, whereas 6.93% heterozygous and 88.16% homozygous were resistant, respectively. This represents the second report in Mexico and Quebec and fist in Lima.

• Iberoamérica
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• v.13 no.1
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• pp.287-317
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• 2011

En este trabajo tratamos de investigar el proceso la constitución nacional de la República Argentina moderna, enfocando en la contradicción entre los federales y los unitarios. En el capítulo II, ante todo hemos definido el origen y el contexto de formación de cada ideología y partido. El centro de los federales estaba en las provincias interiores y litorales, mientras que los unitarios hacen de centro la provincia de Buenos Aires. En el capítulo III, mostramos las causas de esta contradicción histórica y tratamos de caracterizar las diferencias. Explícitamente el conflicto se basa en la distinción de la visión política e ideológica, es decir, la distinción de cómo orientar la constitución nacional de la república incipiente. Sin embargo, es inevitable referir la división administrativa histórica durante la época colonial. Al mismo tiempo no debemos faltar el conflicto de interés económico respecto al puerto de Buenos Aires. En el capítulo IV, analizamos comparando las ideas de dos intelectuales, las cuales hacen un papel importante en la organización nacional. Primero analizamos el pensamiento civilizatorio de Sarmiento, y después, demostramos el pensamiento federalista de Alberdi como origen de la constitución argentina de 1853, y de la inmigración europea. Como consecuencia del estudio, podemos llegar a la conclusión de que los esfuerzos por realizar la organización nacional no siempre estaban en línea paralela de ambos partidos divididos, sino tenemos un ejemplo dialéctico y combinatorio como el caso de Alberdi.

• Journal of Information Display
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• v.10 no.4
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• pp.149-157
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• 2009

Reported herein is the architecture for a nonvolatile n-type memory paper field-effect transistor. The device was built via the hybrid integration of natural cellulose fibers (pine and eucalyptus fibers embedded in resin with ionic additives), which act simultaneously as substrate and gate dielectric, using passive and active semiconductors, respectively, as well as amorphous indium zinc and gallium indium zinc oxides for the gate electrode and channel layer, respectively. This was complemented by the use of continuous patterned metal layers as source/drain electrodes.

• BLOOD RESEARCH
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• v.53 no.4
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• pp.267-267
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• 2018