Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53927#.VNxhYCzQrzE Author(s)   Lin Ye , Steven W. Su Affiliation(s) Centre for Health Technologies, Faculty of Engineering and IT, University of Technology, Sydney, Australia . ABSTRACT This paper investigates experimental design (DoE) for the calibration of the triaxial accelerometers embedded in a wearable micro Inertial Measurement Unit (μ-IMU). Firstly, a new linearization strategy is proposed for the accelerometer model associated with the so-called autocalibration scheme. Then, an effective Icosahedron design is developed, which can achieve both D-optimality and G-optimality for linearized accelerometer model in ideal experimental settings. However, due to various technical limitations, it is often infeasible for the users of wearable sensors to fully implement the proposed experimental scheme. To assess the efficiency of each individual experim...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52671#.VKC2kcCAM4 Author(s)   Georg Kaufmann 1* , Burkart Burkart Ullrich 2 , Philipp Hoelzmann 3 Affiliation(s) 1 Institute of Geological Sciences, Geophysics Section, Freie Universität Berlin, Berlin, Germany . 2 Eastern Atlas Geophysical Prospection, Berlin, Germany . 3 Institute of Geographical Sciences, Physical Geography, Freie Universität Berlin, Berlin, Germany . ABSTRACT Geophysical exploration of archaeological sites has been a successful tool becoming more and more popular in the last decades. Many archaeological features can be detected with magnetic gradiometry (MGR), such as fire places, burned loam, metal artifac...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=51407#.VGlR5WfHRK0 Author(s) Fidèle Koumetio 1,2* , Donatien Njomo 1 , Constant Noutchogwe Tatchum 1,3 , Alain Pierre Kamga Tokam 4 , Tabod Charles Tabod 1,3 , Eliezer Manguelle-Dicoum 1 Affiliation(s) 1 Department of Physics, Faculty of Science, University of Yaounde I, Yaounde, Cameroon . 2 Department of Physics, Faculty of Science, University of Dschang, Dschang, Cameroon . 3 Department of Physics, University of Bamenda, Bamenda, Cameroon . 4 School of Geosciences, University of Witwatersrand, Johannesburg, South Africa . ABSTRACT The gravity maps display, in Bipindi zone, local oval culminations of low anomalies indicative of ...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50234#.VDM1cFfHRK0 Author(s)     Sergey Guk 1 , Wolfhart Müller 1 , Katja Pranke 1 , Rudolf Kawalla 1,2 Affiliation(s) 1 Institute for Metal Forming, TU Bergakademie Freiberg, Freiberg, Germany . 2 Department of Plastic Deformation of Special Alloys, National University of Science and Technology MISIS, Moscow, Russia . ABSTRACT In the present work, a new method to predict the stress-strain curves for three-phase materials has been developed. It was applied using the example of an Mg-stabilized zirconia reinforced TRIP-matrix-composite. The content of the ceramic phase was varied between 5% and 20%, whereas the particle size of the ceramic was selec...