Results 101 to 110 of about 145,999 (267)

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Recycling of NiTi Shape Memory Alloys: Fundamental and Technological Aspects of a Vacuum Induction Melting Processing Route

Advanced Engineering Materials, EarlyView.
The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee, Son Tung Mai, Sarath Menon, Braulio Gadiel Sánchez Ortega, Ralf Drautz, Alexander Kauffmann, Gunther Eggeler, Jan Frenzel   +7 more
wiley   +1 more source

Cryptanalysis and Design of Symmetric Primitives

, 2010
Der Schwerpunkt dieser Dissertation liegt in der Analyse und dem Design von Block- chiffren und Hashfunktionen. Die Arbeit beginnt mit einer Einführung in Techniken zur Kryptoanalyse von Blockchiffren. Wir beschreiben diese Methoden und zeigen wie man daraus neue Techniken entwickeln kann, welche zu staerkeren Angriffen fuehren.
openaire   +2 more sources

Characterization of 3-Resilient Rotation Symmetric Boolean Functions

Tongxin xuebao
Rotation symmetric Boolean functions (RSBFs) are widely employed in the design of block cipher S-boxes and hash functions due to their strong cryptographic characteristics. In this paper, two types of equivalent characterizations for rotation symmetric 3-
Zhang Hui, Cheng Xiaoting, Wang Hongpan, Du Jiao, Li Gongli, Wang Tianyin   +5 more
doaj  

On the symmetric block design with parameters (430, 78, 14)

Le Matematiche, 2010
In this paper we have proved that a Frobenius group of order 301cannot operate on a symmetric block design with parameters (430,78,14).
Menderes Gashi, Rexhep Gjergji
doaj  

Electric Control of the In-Plane Deflection of Laser Beam Pairs within a Photonic Slab Waveguide

Optics
A symmetric laser beam pair can provide unique control over light–matter interactions. When propagating within a symmetric slab waveguide, its non-conical diffraction at a specially designed symmetric leaky waveguide grating can be completely suppressed,
Andreas Henkel, Christopher Knoth, Maximilian Buchmüller, Patrick Görrn   +3 more
doaj   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Characterization of 3-resilient rotation symmetric functions

Tongxin xuebao
Rotation symmetric Boolean function (RSBF) is widely employed in the design of block cipher S-boxes and hash functions due to their strong cryptographic characteristics.
Zhang Hui, Chen Xiaoting, Wang Hongpan, Du Jiao, Li Gongli, Wang Tianyin   +5 more
doaj  

Optimum Research of Planar 5R Symmetric Parallel Robot based on the Performance Indicator about GTW and GTI

Jixie chuandong, 2020
Optimum design about geometric parameters，i.e. link lengths is one of the most important issues in the field of parallel robots. In order to facilitate optimization of the geometric parameters of 5R parallel robot，the following steps are given. First，the
Zeqi Wu, Jing He, Zhijun Wang, Liantao Du   +3 more
doaj  

Soft Mechanical‐Electrical Logic Using Liquid Metal‐Filled 3D‐Printed Architectures

Advanced Engineering Materials, EarlyView.
We present 3D‐printed soft mechanical–electrical logic elements that use liquid metal–filled silicone tubes actuated by thermoplastic polyurethane/polylactic acid (TPU/PLA) architectures to produce Boolean operations. Complementary normally open and normally closed unit cells perform repeatable binary transitions and can be combined into more complex ...
Christoph Lehmann, Ryan Kalgreen, Laura M. Comella   +2 more
wiley   +1 more source