Results 101 to 110 of about 2,686,556 (260)

Sticky Pixels: Evolutionary Growth by Random Drop Ballistic Aggregation [PDF]

, 2001
Over the years many techniques have been developed for simulating and modelling trees, ferns, crystals and natural structures. Indeed, many complex and realistic images have been formed.
Roberts, Jonathan C.
core  

Design and Development of a Modular Ballistic Pendulum for High‐Impulse Measurement in Contact and Near‐Field Explosive Loading

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Measuring impulse from explosive charges in contact and near‐field configurations presents practical challenges due to wide variation in impulse magnitude. Ballistic pendula are widely used for impulse measurement, but many existing designs are limited to narrow operating envelopes or are poorly suited to repeated contact testing and tamped ...
R. Alford, R. Hazael, R. Critchley, L. Humphreys   +3 more
wiley   +1 more source

Strategy for One‐Step Optimization of Metal Oxide Passivating Contact Materials for Si Heterojunction Solar Cells through Growth Angle Variation

Small, EarlyView.
A one‐step oblique angle reactive sputtering approach enables simultaneous tuning of bulk and interfacial stoichiometry in a metal oxide/ silicon heterojunction. In case of vanadium oxides, growth angle variation controls the formation of stoichiometric SiO2, ternary SiOx(V) interlayer, and phase purity of vanadium oxide, considerably simplifying the ...
Aparajita Mandal, Alexis Franquet, Hans Hofsäss, Tapobrata Som   +3 more
wiley   +1 more source

Chain Orientation and Polycrystalline Disorder as Antagonistic Descriptors of Thermal and Triboelectric Transport in 3D‐Nanoconfined PMMA, PEEK, and PET Nanowire Networks

Small, EarlyView.
Nanoconfinement in interconnected 3D‐AAO provides a common platform to disentangle crystallinity, crystalline texture, and microstructural disorder in PMMA, PEEK, and PET. Amorphous PMMA exhibits a 350% thermal conductivity increase, demonstrating a substantial confinement‐related contribution independent of crystallization, while strongly oriented PET
Carlos G. Cobos, Miguel Ángel Tenaguillo, Diego Garay‐Ruiz, Matthias Worgull, Marc Schneider, Juan P. Fernández‐Blázquez, Marisol Martin‐Gonzalez   +6 more
wiley   +1 more source

Failure observation of the AZ31B magnesium alloy and the effect of lead addition content under ballistic impact

Advances in Mechanical Engineering, 2015
The association of the failure behavior of the AZ31B magnesium alloy with absorption energy under ballistic impact condition was investigated in this study, as well as the effect of varying percentages of added lead (Pb) content.
Mohamad Faizal Abdullah, Shahrum Abdullah, Mohd Zaidi Omar, Zainuddin Sajuri, Risby Mohd Sohaimi   +4 more
doaj   +1 more source

A Thoracic Mechanism of Mild Traumatic Brain Injury Due to Blast Pressure Waves [PDF]

, 2008
The mechanisms by which blast pressure waves cause mild to moderate traumatic brain injury (mTBI) are an open question. Possibilities include acceleration of the head, direct passage of the blast wave via the cranium, and propagation of the blast wave to
Michael Courtney, Amy Courtney
core  

Crash Behavior of DP800–DP1000 Advanced High‐Strength Steel’s Dissimilar Resistance Spot Welded Joints Under Quasi‐static and High Strain Rates

steel research international, EarlyView.
The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley   +1 more source

Effect of Different Surface Treatments on Resistance to Abrasive Wear of AISI 4140 Steel

steel research international, EarlyView.
This study investigates how different surface treatments affect resistance to abrasive wear of AISI 4140 Steel. The wear rate was significantly higher in samples subjected to conventional treatments than in samples coated using the HVOF process, demonstrating the superior efficiency of coatings applied by thermal spraying in mitigating abrasive wear ...
Everton Freitas de Oliveira, Tomasz Trzepieciński, Valmir Dias Luiz, Jorge Luis Coleti   +3 more
wiley   +1 more source

Integrating Artificial Intelligence With PPE: A Smart Boiler Suit Framework for Maritime Survey Applications

Safety Science and Technology, EarlyView.
This paper introduces a conceptual framework for an AI‐enhanced smart boiler suit, shifting maritime surveyor safety from reactive to proactive monitoring. Through integrated sensor networks and edge AI analytics, the proposed architecture offers a robust modular roadmap for advancing intelligent personal protective equipment in hazardous offshore and ...
P. Katsinellos, A. Gotsopoulos, A. Chatzopoulos, N. Gerolimos, G. Priniotakis   +4 more
wiley   +1 more source

The Reflexive Turn in Systems Engineering: A Disciplinary Response to Complexity

Systems Engineering, EarlyView.
ABSTRACT The Future of Systems Engineering (FuSE) programme has called for the discipline to evolve as a transdiscipline capable of engaging complex eco‐socio‐technical challenges. Yet the pace of that evolution has been slower than the arguments for it would predict. This article examines why.
Raul Leal Ascencio
wiley   +1 more source