Results 51 to 60 of about 139,468 (284)

NAKED SINGULARITY EXPLOSION [PDF]

open access: yesThe Ninth Marcel Grossmann Meeting, 2000
6 pages, 3 figures, Accepted for Publication in Phys. Rev.
Harada, Tomohiro   +2 more
openaire   +2 more sources

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Method to measure blast overpressure exposure on military personnel using orthogonal sensor orientations

open access: yesScientific Reports
Measuring and recording blast exposure to military personnel from shoulder-fired weaponry or improvised explosive devices to correlate health outcomes like mild traumatic brain injury has been a goal for many years.
Nicholas W. Kuehl, Catherine E. Johnson
doaj   +1 more source

Evaluation of a TiO2 photocatalysis treatment on nitrophenols and nitramines contaminated plant wastewaters by solid-phase extraction coupled with ESI HPLC–MS [PDF]

open access: yes, 2009
Nitration reactions of aromatic compounds are commonly involved in different industrial processes for pharmaceutical, pesticide or military uses. For many years, most of the manufacturing sites used lagooning systems to treat their process effluents.
Hafidi, Mohamed   +5 more
core   +3 more sources

Sol–Gel Derived Polymer Precursors for Stereolithography of ZrC

open access: yesAdvanced Engineering Materials, EarlyView.
ZrC is a critical material target for extreme temperature conditions. This report describes a protocol for preparing ZrC ceramics via stereolithography and examines the impact of the polymer matrix on carbothermal reduction and mechanical stability of 3D printed ZrC.
Charles J. Rafalko   +2 more
wiley   +1 more source

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm   +6 more
wiley   +1 more source

ENVIRONMENTAL RISK ASSESSMENT OF EXPLOSIVE RESIDUES TOXICOLOGICAL IMPACT ON HUMANS ON THE FORMER COMBAT AREA

open access: yesEnvironmental Problems, 2022
This article evaluates the impact of explosives residues left after the explosion of low-detonation munitions on the health of population (children and adults) living on the former battlefield.
Serhiy Orel   +2 more
doaj   +1 more source

Selective Screening of Rail Passengers, MTI 06-07 [PDF]

open access: yes, 2005
The threat of another major terrorist attack in the United States remains high, with the greatest danger coming from local extremists inspired by events in the Middle East.
Butterworth, Bruce Robert   +1 more
core   +1 more source

On‐Demand Activation of Thin Alginate Shell Encapsulated Volatile Liquid for Untethered Pneumatic Soft Actuation

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐changing liquids enable untethered pneumatic actuation in soft robotics but suffer from volatility and storage challenges. This work reports a simple method to encapsulate Novec 7000 within micron‐thin alginate shells via in situ injection and ionic crosslinking.
Rayan A. M. Basodan   +3 more
wiley   +1 more source

The Dynamics of Carbon Nanostructures at Detonation of Condensed High Explosives

open access: yes, 2015
Based on the obtained earlier experimental conductivity graphs at detonation of five different high explosives, an analysis was performed which shows a correlation between the carbon content and the conductivity magnitude.
Satonkina, Nataliya P.
core   +1 more source

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