Results 71 to 80 of about 1,186,586 (288)
A Novel Approach to Estimate the Transition Temperature via Dynamic Nanoindentation
Advanced Engineering Materials, EarlyView.A new dynamic nanoindentation‐based method was developed that uses the stiffness ratio as an indicator of the elastic–plastic deformation contributions at different temperatures. The approach successfully identified transition temperatures in ferritic steel and distinguished them from continuously ductile austenitic steel.
Stefan Zeiler +4 more
wiley +1 more source
SAGE OpenThis study uses a theory-informed design to examine the reasoning-demand patterns underlying preservice mathematics teachers’ spatial orientation (SO) in orthographic view (OV) construction and to clarify how these demands shape task performance.
Feyza Kurban +2 more
doaj +1 more source
, 1995 The ICMI study conference on “Perspectives on the Teaching of Geometry for the 21st Century” took place recently in Italy. This paper reports on the discussion of one of the conference working groups which considered geometrical reasoning. Four main themes are covered: visual reasoning, geometrical reasoning in context, the meaning of proving in ...
openaire
Advanced Engineering Materials, EarlyView.A high interstital austenitic steel is additively manufactured and postdensified by HIP to eliminate gas porosity. Thereby, the loss of N and Mn in Ar HIP atmosphere is investigated. Further, HIP using N2 atmosphere is investigated which led to excessive nitride formation.
F. Großwendt +4 more
wiley +1 more source
Geometric and form feature recognition tools applied to a design for assembly methodology [PDF]
, 2003 The paper presents geometric tools for an automated Design for Assembly (DFA) assessment system. For each component in an assembly a two step features search is performed: firstly (using the minimal bounding box) mass, dimensions and symmetries are ...
COMA, Olivier +5 more
core +1 more source
Impact of Hydrogen Incorporation on Electronic and Magnetic Structure of X2CrNi18‐9 Stainless Steel
Advanced Engineering Materials, EarlyView.Hydrogen uptake in austenitic stainless steel alters both its electronic and magnetic structure. Seebeck measurements reveal hydrogen‐induced shifts in the electronic density of states, while neutron scattering uncovers nanoscale inhomogeneities that grow upon hydrogen incorporation, with the most pronounced effect observed in the PBF as‐built state ...
Torben Tappe +9 more
wiley +1 more source
Reasoning and Geometric Proof in Mathematics Education: A Review of the Literature
, 2003 The purpose of this literature review is to examine the role that reasoning and geometric proof play in the teaching and learning of mathematics. Specifically, I explore four questions: 1) What reasoning capabilities do students need to be ready for ...
Mansi, Kate Elizabeth
core
Gyroid Structured Globugraphite Carbon Foam With Hierarchical and Tailored Pore Size
Advanced Engineering Materials, EarlyView.Secondary sacrificial templates were designed and printed to create a defined network within a porous carbon. Lattices thermally degrades during the sintering process. Lattices are imprinted into the ceramic template and transferred to the morphology of Globugraphite.
Christiane Roller +6 more
wiley +1 more source
Geometric reasoning: A new paradigm for processing geometric information
, 2008 CMU-CS-85-144 Existing approaches to geometric modeling use rigid, static data structures, often tuned for one specific application. This inflexibilityrestricts users to inadequate means of manipulating geometric models.
Jeannette M. Wing, Farhad Arbab
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Educational Process: International JournalBackground/purpose. Geometric reasoning is essential for students’ cognitive development, yet middle school learners in Morocco face major difficulties in this area.
Badr Menouer +4 more
doaj +1 more source