Results 41 to 50 of about 1,632 (261)
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source
CALCULATION OF PIERCING FORCE AT PRODUCTION OF TUBE
Литьë и металлургия, 2007 Force parameters of drifting cylindrical stock materials process by a mandrel plugging sections of cylindrical, conic, spherical and paraboloidal surfaces are certain.
V. I. Timoshpoiski +4 more
doaj
Conic sections in ferroelectric nematics: Experiments and mathematical modeling
Physical Review ResearchThe domain structure of a fluid ferroelectric nematic is dramatically different from the domain structure of solid ferroelectrics since it is not restricted by rectilinear crystallographic axes and planar surface facets. We demonstrate that thin films of
Priyanka Kumari +5 more
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Scrutinizing the General Conic Equation
MathematicsWe present a general formula that transforms any conic of the form Ax2+Bxy+Cy2+Dx+Ey+F=0, with B≠0, into A′(x′)2+C′(y′)2+D′x′+E′y′+F=0, without requiring the rotation angle θ.
Mauricio Chávez-Pichardo +2 more
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Enhancing Bubble Removal in Geometry‐Optimized Electrodes
Advanced Engineering Materials, EarlyView.3D‐printed lattice electrodes outperform stochastic foams in alkaline water electrolysis despite 20%–25% lower surface area. Straight flow channels generate Venturi‐like bubble entrainment, suppressing gas accumulation that renders foam interiors electrochemically inactive.
Florian Wiesner +5 more
wiley +1 more source
AlifmatikaThis article confronts the persistent challenge of determining the exact perimeter of an ellipse. It proposes a high-accuracy geometric approximation centred on a uniquely defined Measuring Right-Angled Triangle (MRAT).
Laith H. M. Al-ossmi
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Experimental Study on the Effects of Artificial Bed Roughness on Hydraulic Parameters of Saline Density Currents [PDF]
علوم و مهندسی آبیاری, 2014 Turbidity currents are often the main process for the transport and deposition of the sediments in narrow, alpine reservoirs. In this research, 63 experiments were performed to investigate artificial bed roughness effects on the saline density currents ...
Peyman Varjavand +3 more
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ON EVALUATION OF THE THREE-DIMENSIONAL ISOGEOMETRIC BEAM ELEMENT
Acta Polytechnica CTU Proceedings, 2020 The exact description of the arbitrarily curved geometries, including conic sections, is an undeniable advantage of isogeometric analysis (IGA) over standard finite element method (FEM).
Edita Dvořáková, Bořek Patzák
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Kepler’s Laws and Conic Sections [PDF]
Arnold Mathematical Journal, 2015 The Kepler's law reads as second order ODE \(\ddot{\pmb{\text{r}}} = -k |\pmb{\text{r}}|^{-3} \pmb{\text{r}}\), where \(\pmb{\text{r}}=(x,y)\) is the position of a planet \(P\) in the \(Oxy\)-plane and \(k\) is a coefficient of proportionality in the Newton law \(F=ma\). The author lifts \(P\) on the cone \(r^2=x^2+y^2\) and represents the lifted point
openaire +1 more source
Exploring Curvature Effects in Direct‐Written 3D Curved Hollow Magnetic Nanoshells
Advanced Functional Materials, EarlyView.Fabricated by a hybrid FEBID/CVD method, 3D PtC/Co3Fe core–shell heterostructures with engineered curvature and shell thickness exhibit complex reversal modes with axially symmetric N'eel‐type domain walls. XMCD‐PEEM combined with full‐scale micromagnetic simulations reveal how curvature and thickness govern the domain wall energy landscape and shape ...
Oleksii M. Volkov +10 more
wiley +1 more source