1,720,974 research outputs found
Comparison between symmetric and asymmetric hot rolling techniques performed on duplex stainless steel 2205
No full textIn this work the alterations of mechanical properties of two 6xxx Aluminum alloys during different states of a production process are investigated. The mechanical properties are determined by means of the tensile test. Tensile tests are performed shortly after four steps in the production process: the shipment of the two alloys, a certain period of storage, uniaxial pre-stretching, and heat treatment that corresponds to the temperature profile during e-coating. Results are displayed as a function of orientation with reference to rolling direction, as a function of the level of uniaxial pre-stretching and as function of the temperature profile
Viability study of the use of cast iron open cell foam as microbial fuel cell electrodes
No full textNowadays, the development of new green technologies has been promoted worldwide both by public and private institutions. In this context the research on microbial fuel cells (MFC) represents a promising alternative to carbon based energy sources. Unfortunately, this technology has been always affected by too low current density for allowing an intensive application in the industrial and civil field. The study deals with this limitation and focuses on the implementation of metallic foams, specifically cast iron based, as electrodes, increasing the exposed surface and thus the activity of the bacterial population. The pig iron was selected because of its low toxicity for the microorganisms and their metabolism, however its high melting point carries several problems for the manufacture process. Parallel to this, the realization of electrodes using foamed metals implies further issues related to the generation of correct pores size distribution and adequate bacterial activity. For instance, the metal foams are expected to be open-cell type, so that the mass transport might reach also the inner regions. In order to control these parameters the metal foams are produced by infiltration of cast iron on ceramic beds. Combining the previous data with the measurements of power generation efficiency the authors conclude the study attempting to design MFCs with metal foamed electrodes
Investigation regarding the duality between texture patterns and load modalities on Al 6061–T6 alloy by means of Electron Back-Scattered Diffraction analysis
No full textDuplex Stainless Steel 2205: comparison between symmetric and asymmetric hot rolling techniques
No full textProcessing and characterization of duplex stainless steel 2205 (uns32305) foams having different pore distribution
No full textSurvey about effects of shot peeningconditions on fatigue performances of Ti–6Al–4V mechanical specimens featured bydifferent cross-section geometries
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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