Results 121 to 130 of about 15,690,564 (314)

Geometric approach to asymptotic expansion of Feynman integrals

European Physical Journal C: Particles and Fields, 2011
We present an algorithm that reveals relevant contributions in non-threshold-type asymptotic expansion of Feynman integrals about a small parameter. It is shown that the problem reduces to finding a convex hull of a set of points in a multidimensional ...
A. Pak, A. Smirnov
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

A new approach to the geometric Satake equivalence [PDF]

, 2012
I give another proof of the geometric Satake equivalence from Mirkovic-Vilonen over a separably closed field.
Richarz, Timo
core  

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

Advanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar, David Osman Busse, Maximilian Sprengel, Domenico Furfari, Marc‐André Nielsen, Guilherme Abreu Faria, Jérémy Epp   +6 more
wiley   +1 more source

Geometric goup presentations: a combinatorial approach

Le Matematiche, 2008
In this paper we obtain combinatorial conditions for the geometricity of group presentations; such a criterion holds both for orientable and for non-orientable manifolds.
Paola Bandieri
doaj  

The Development of Students’  Worksheet  Based on the Context of the Lumajang  Central Park to Teach Geometric Transformation Material

Kreano: Jurnal Matematika Kreatif-Inovatif
The use of Worksheet teaching materials and textbooks from the government at MTs Darul Ulum Ranupakis and learning methods that are still teacher-centered.
Rindu Asyifa, Suwarno Suwarno
doaj   +1 more source

On the Robot Singularity: A Novel Geometric Approach

International Journal of Advanced Robotic Systems, 2012
This paper addresses a novel geometric analysis method of the singularity and kinestatic characteristics of robots. For non-redundant robots, there exist two uniquely determined Jacobians – the screw-based Jacobian and the reciprocal Jacobian.
Man Bok Hong
doaj   +1 more source

On the Impact Energy Absorption of an Advanced High‐Strength Bilayer Steel Composite Consisting of Carbide‐Free Bainitic Steel and High‐Mn Twinning‐Induced Plasticity Steel

Advanced Engineering Materials, EarlyView.
Excellent combinations of strength and impact toughness are obtained in a bilayer composite of high‐strength carbide‐free bainitic (CFB) steel and high‐ductility twinning‐induced plasticity (TWIP) steel. The composite absorbs energy at small strains when the notch is placed on the TWIP side and at high strains when the notch is placed on the CFB side ...
Kendra Hawke, Xiaogang Li, Amir Partovi, Colin Scott, Fateh Fazeli, Hatem Zurob   +5 more
wiley   +1 more source

A tropical geometric approach to exceptional points. [PDF]

Proc Natl Acad Sci U S A, 2023
Banerjee A, Jaiswal R, Manjunath M, Narayan A.   +3 more
europepmc   +1 more source

Adaptable Tile‐Based Pneumatic Origami through Structurally Coupled Localized Actuation

Advanced Engineering Materials, EarlyView.
This article presents tile‐based pneumatic origami structures with rigid tiles and flexible fabric creases, achieving adaptable properties including morphing shape, selective multistability, and tunable stiffness. Independently pressurized folding bladders at each crease enable structurally coupled localized actuation of origami structures.
Tiantian Li, Jonathan Luntz, Diann Brei
wiley   +1 more source