Scientific Research Publishing

Read  full  paper  at: http://file.scirp.org/Html/20515.html Author(s)   L. R. Reyes-Gutiérrez , E. T. Romero-Guzmán , A. Cabral-Prieto , R. Rodríguez-Castillo Affiliation(s) Universidad Nacional Autónoma de México, Instituto de Geofísica, Posgrado en Ciencias de la Tierra, UACPyP-CCH. México . Instituto Nacional de Investigaciones Nucleares. Gcia. Ciencias Básicas, Depto. de Química Carretera México-Toluca km36.5, Salazar Estado de México AP 18-1027. C.P. 52045. . Instituto Nacional de Investigaciones Nucleares. Gcia. Ciencias Básicas, Depto. de Química Carretera México-Toluca km36.5, Salazar Estado de México AP 18-1027. C.P. 52045. . Universidad Nacional Autónoma de México, Instituto de Geofísica, Posgrado en Ciencias de la Tierra, UACPyP-CCH. México. . ABSTRACT Chromium is important from the environmental point of view since its behavior and toxicity properties depend on its oxidation states. The Cr(VI) concentration in wells of B...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53523#.VMdF_yzQrzE Author(s)   Pratima Parashar Pandey *   Affiliation(s) Department of Materials Science, Mangalore University, Mangalagangotri, India . ABSTRACT Silver particulate thin films on softened polymer blends of Polystyrene (PS)/Poly(2-vinyl pyridine) (P2VP), PS/Poly(4-vinylpyridine) (P4VP), and Poly(vinylpyrollidone) (PVP)/P4VP at a rate of 0.4 nm/s held at a temperature of 457 K in vacuum of 8 × 10 -6 Torr by evaporation are deposited. These silver films were characterized by their electrical behavior, optical properties and Scanning electron microscopy (SEM). Silver films deposited on softened PS, and PVP give rise to a very high room temperature resistance approaching that of the substrate resistance due to the formation of a highly agglomerated structure. On the other hand, silver films on softened P2VP and P4VP gives rise to a room ...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52962#.VK3shMnQrzE Author(s)     Adolfo Quiroz 1,2 , Elizabeth Chavira 2 , José Eduardo Espinosa 1 , Rodolfo Palomino-Merino 1 , Ernesto Esteban Marinero 3 , Masaya Nishioka 4 , Valentín García-Vázquez 5   Affiliation(s) 1 Facultad de Ciencias Físico-Matemáticas, Postgrado en Física Aplicada, Benemérita Universidad Autónoma Puebla, Ciudad Universitaria, Puebla, México . 2 Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, México, D.F., México . 3 Purdue University, West Lafayette, IN, USA . 4 Hitachi San José Research Center, San José, California, USA . 5 Instituto de Física LRT, Benemérita Universidad Autónoma de Puebla, Puebla, México . ABSTRACT We present a study of their structure, morphology, electrical and magnetic properties on the (Ca 1<span "="">–x Sr x ) RuO 3 system for x = 0.0, 0.07, 0.10, 0.15...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52814 Author(s)   Ezgi Günay 1 , Hamad Golmohammadi 1 , Şükrü Tayfun Kaya 2 Affiliation(s) 1 Mechanical Engineering Department, Gazi University, Ankara, Turkey . 2 TCDD High Speed Train District Office, Alt?ndag, Ankara, Turkey . ABSTRACT This study is mainly focused on the 3D mechanical cell deformations of 20 × 20 × 60 mm sized softwood specimens under 35 - 40 MPa compression loading at room temperature of 20?C. The moisture content of the specimens was 6% - 7%. The data of microscopic images were measured and compared in terms of the permanently degenerated individual cell structures each in micro-scale . 3D cell deformat...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52213#.VIj4jsnQrzF Author(s)   Roberto Ramirez-Leal 1* , Maryanna Valle-Martinez 2 , Martin Cruz-Campas 1 Affiliation(s) 1 Environmental Industrial Engineering Program, Sonora State University, Hermosillo, Mexico . 2 Ecology School, Sonora State University, Hermosillo, Mexico . ABSTRACT Single particle characterization can provide information on the evolution of size distribution and chemical composition of pollution aerosol. The work described the use of Scanning Electron Microscopy (SEM) combined with X-ray Dispersive Energy Spectrometry (EDS) to characterize inorganic atmospheric particles samples collected on PM10 filters fr...