Results 111 to 120 of about 7,892,925 (256)

Numerically efficient modelling of CNT transistors with ballistic and non ballistic effects for circuit simulation

open access: yes, 2010
This paper presents an efficient carbon nanotube (CNT) transistor modeling technique which is based on cubic spline approximation of the non-equilibrium mobile charge density.
Ashburn, Peter   +3 more
core  

Programmable Porosity in Polymers via Microfluidic Templating and 3D Printing

open access: yesSmall Methods, EarlyView.
Fluid templating is a powerful way to produce porous polymers. Microfluidic technologies enable fine control over the dimension and packing of bubbles and droplets. Combined with additive manufacturing, microfluidic templating enables the creation of polymeric functionally graded porous materials in which both porosity and three‐dimensional geometry ...
Federico Serpe   +3 more
wiley   +1 more source

STUDY ON THE EFFECT OF OBLIQUE IMPACT ANGLE ON THE FAILURE CHARACTERISTICS OF ALUMINUM ALLOY SHEET

open access: yesJixie qiangdu, 2022
In order to study the failure mechanism of 6061-T651 aluminum alloy sheet under oblique impact, the impact experiments of a hemispherical projectile slanting into a single aluminum alloy sheet at different impact angles(0°, 15°, 30°, 45°) were carried ...
HU Jing, Lü YuHan
doaj  

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

open access: yessteel 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

Influence of surface polyurea coating on the ballistic performance of kevlar fabric

open access: yesHeliyon
With the increasing lethality of modern weapons, the development of body armor has become increasingly important. The main objective of current research is to make protective gear lighter and increase material ballistic performance.
Xing Li   +3 more
doaj   +1 more source

Finite Element Analysis of the Ballistic Impact on Auxetic Sandwich Composite Human Body Armor. [PDF]

open access: yesMaterials (Basel), 2022
Shah IA   +6 more
europepmc   +1 more source

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

open access: yessteel 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   +3 more
wiley   +1 more source

Excellent ballistic impact resistance of Al0.3CoCrFeNi multi-principal element alloy with unique bimodal microstructure. [PDF]

open access: yesSci Rep, 2021
Muskeri S   +9 more
europepmc   +1 more source

What Is the Return on Investment of Digital Engineering for Complex Systems Development Schedules? Findings From a Mixed‐Methods Case Study on the Post‐Production Design Change Processes of Navy Assets

open access: yesSystems Engineering, EarlyView.
ABSTRACT Complex engineered systems routinely face schedule and cost overruns, along with poor post‐deployment performance. Both INCOSE and the U.S. Department of Defense (DoD) have championed Digital Engineering (DE) as a potential remedy, yet most of DE's purported benefits remain anecdotal, and its return on investment (ROI) remains poorly ...
Jannatul Shefa, Taylan G. Topcu
wiley   +1 more source

Home - About - Disclaimer - Privacy