Results 111 to 120 of about 980,901 (302)
A BEM based on the Bézier/Bernstein polynomial for acoustic waveguide modelization [PDF]
, 2019 42nd International Conference on Boundary Elements and other Mesh Reduction Methods, BEM/MRM 2019; ITeCons-University of CoimbraCoimbra; Portugal; 2 July 2019 through 4 July 2019; Code 155806.
Galvín, Pedro +2 more
core
Advanced Engineering Materials, EarlyView.This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh +6 more
wiley +1 more source
FPGA-based embedded system for wind tunnel variable-geometry nozzle positioning [PDF]
Scientific Technical Review, 2019 Over the last few decades, the accuracy requirements for wind tunnel testing have become much more stringent as aircraft industry strives to achieve the best performance of their products. Investments in advanced capabilities are necessary to obtain more
Ilić Biljana, Milosavljević Mirko
doaj
Advanced Engineering Materials, EarlyView.This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert +7 more
wiley +1 more source
NNEP: The Navy NASA Engine Program [PDF]
A computer code capable of simulating almost any conceivable turbine engine is described. This code uses stacked component maps and multiple flowpaths to simulate variable cycle engines with variable component geometry.
Caddy, M. J., Fishbach, L. H.
core +1 more source
Geometrical Properties of Conformal Field Theories Coupled to Two-Dimensional Quantum Gravity
, 1994 In this work we discuss an approach due to F. David to the geometry of world sheets of non-critical strings in quasiclassical approximation. The gravitational dressed conformal dimension is related to the scaling behavior of the two-point function with ...
Berlin, HU, Braune, S.
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Advanced Engineering Materials, EarlyView.In this experimental study, the mechanical properties of additively manufactured Ti‐6Al‐4V lattice structures of different geometries are characterized using compression, four point bending and fatigue testing. While TPMS designs show superior fatigue resistance, SplitP and Honeycomb lattice structures combine high stiffness and strength. The resulting
Klaus Burkart +3 more
wiley +1 more source
THE IMPORTANCE OF STUDY GEOMETRY DESCRIPTIVE METHODS IN LEARNING GRAPHICS DISCIPLINES
Journal of Industrial Design and Engineering Graphics, 2021 The aim of this paper is to study the influence of auxiliary view method, as a method of descriptive geometry, in studying and recognizing the geometry of an object.
Manuela Nechita
doaj
Nozzle and wing geometry effects on OTW aerodynamic characteristics [PDF]
The effects of nozzle geometry and wing size on the aerodynamic performance of several 5:1 aspect ratio slot nozzles are presented for over-the-wing (OTW) configurations.
Groesbeck, D., Vonglahn, U.
core +1 more source
Advanced Engineering Materials, EarlyView.Additive manufacturing (AM) allows great geometric freedom for lightweight components. As parts are progressively optimized exploiting potentials in AM leading in smaller material cross sections, high pressure solution treating and aging (STA) treatments show an enormous potential for strongly improving material properties.
Mika León Altmann +4 more
wiley +1 more source