Results 171 to 180 of about 708,304 (217)
Macromolecular Symposia, EarlyView.ABSTRACT Oil palm empty fruit bunches (OPEFB), a byproduct of the palm oil industry, have great potential in the circular economy, particularly for composite material production. Multilayer plastic waste from the bottled water industry presents significant environmental challenges.
Siti Mutia Mawaddah +3 more
wiley +1 more source
Movement Disorders Clinical Practice, EarlyView.Abstract Background Non‐motor symptoms, especially autonomic dysfunction, are major contributors to disability and decreased quality of life in Parkinson's disease (PD). Despite being common and having a wide range of clinical facets, exocrine gland dysfunction is still not well recognized and managed.
Renato P. Munhoz +2 more
wiley +1 more source
Property Rights Entrepreneurship: The Drive for Product, Asset, and Resource Excludability
Managerial and Decision Economics, EarlyView.ABSTRACT Property rights are foundational to market economies, and entrepreneurial activity depends heavily on the excludability afforded by property rights. Yet, the role of entrepreneurs in shaping the evolution of property rights has been so thoroughly taken for granted that it often vanishes from analyses.
Thomas J. Dean +2 more
wiley +1 more source
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Fabrication and characterization of Ti–Cu clad materials by indirect extrusion
Journal of Materials Processing Technology, 2007Abstract This study was to investigate the effects of extrusion condition (extrusion temperature, extrusion ratio, dies angle, initial Ti thickness) on the fabrication of Ti–Cu clad material for high conductivity and high corrosion resistance, using indirect extrusion method in which there is no friction between container and billet.
S C Lim
exaly +2 more sources
Enhanced strength and plasticity of Mg–6Zn–0.5Zr alloy by low-temperature indirect extrusion
Journal of Alloys and Compounds, 2017Abstract The microstructure and tensile properties of Mg–6Zn–0.5Zr alloy processed by low-temperature indirect extrusion utilizing artificial cooling were investigated. Remarkable grain refinement was obtained by the application of artificial cooling, resulting in an increase in the yield strength of as much as 53 MPa at room temperature, as compared
Soo-Min Baek +2 more
exaly +3 more sources
Direct and indirect extrusion of aluminium alloys
Metals Technology, 1982Abstract The extrusion of Al and an Al–Cu alloy has been investigated using both direct and indirect extrusion modes. The friction conditions obtaining in the two processes are analysed and discussed. The increment ofpressure necessary to cause breakthrough of extrudate is shown to exist in the indirect process, and its magnitude and nature are ...
T. Sheppard, S. J. Paterson
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Perspective-dependent Indirect Touch Input for 3D Polygon Extrusion
Adjunct Proceedings of the 28th Annual ACM Symposium on User Interface Software & Technology, 2015We present a two-handed indirect touch interaction technique for the extrusion of polygons within a 3D modeling tool that we have built for a horizontal/vertical dual touch screen setup. In particular, we introduce perspective-dependent touch gestures: using several graphical input areas on the horizontal display, the non-dominant hand navigates the ...
Henri Palleis +2 more
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Indirect extrusion of semi‐finished aluminium‐magnesium compounds
Materialwissenschaft und Werkstofftechnik, 2011AbstractDer Artikel beinhaltet erste Arbeitsergebnisse zum indirekten Strangpressen von Al/Mg‐Verbundhalbzeugen. In den vorangegangenen Basisuntersuchungen zum Querfließpressen und hydrostatischen Strangpressen konnten grundlegende Erkenntnisse zur Verbundbildung gewonnen werden.
R. Neugebauer +4 more
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Velocity Field in Direct, Indirect and Friction Assisted Extrusion of Al
Key Engineering Materials, 2013This study investigates the velocity fields that are descriptive for the forward, backward and friction assisted extrusion of axisymmetric rods. The Avitzur theory was used to calculate the velocity field and strain rate in extrusion of Al alloys. Several simulations have also been performed by using finite element analysis (FEA) with DEFORM 2D, in ...
Sepinood Torabzadeh Khorasani +1 more
openaire +1 more source