Results 31 to 40 of about 12,339 (306)

Introduction to “Propeller Flaps”

open access: yesSeminars in Plastic Surgery, 2020
AbstractThe editors of this issue of Seminars in Plastic Surgery dedicated to propeller flaps met in 2009 at the “1st Tokyo Meeting on Perforator and Propeller Flaps.” On that occasion, as part of the advisory panel of the meeting, they contributed to the definition and classification of these flaps.
Pignatti, M, Hallock, GG
openaire   +4 more sources

Simulation of Heat Flow Curves of NC‐Based Propellants – Part 2: Application to DPA Stabilized Propellants.

open access: yes, 2021
S.1204-1215Measuring of heat flow curves at temperatures near the in-service range have become a standard for stability and compatibility assessments of nitrocellulose (NC)-based energetic materials.
Itkis, Daniel G.   +3 more
core   +1 more source

Characterization of aging behavior of butacene® based composite propellants by loss factor curves

open access: yes, 2022
S.712-723Butacene® is a polymeric binder with ferrocenyl groups chemically bonded to HTPB backbone. Through incorporation in the AP−Al composite propellant formulation, it leads to high burning rates (BR) >20 mm/s at 7 MPa, and low ...
Seyidoglu, Tijen, Bohn, Manfred
core   +1 more source

High-nitrogen azotetrazole based pyrogen gas generating propellants: Aspects on synthesis, characterization, combustion characteristics and kinetics

open access: yesFirePhysChem
Propellant formulations containing a novel high nitrogen azotetrazole salt viz., diammonium 5,5′-azotetrazolate (DAAzT) along with two different binders viz., hydroxyl terminated polybutadiene (HTPB) and glycidyl azide polymer (GAP) were realized as ...
Santhosh G   +4 more
doaj   +1 more source

Investigation on the foaming behaviors of NC-based gun propellants

open access: yesDefence Technology, 2014
To prepare the porous NC-based (nitrocellulose-based) gun propellants, the batch foaming process of using supercritical CO2 as the physical blowing agent is used.
Yu-xiang Li, Wei-tao Yang, San-jiu Ying
doaj   +1 more source

Simulation of the Loading Density for Gun Propellants with Arbitrary Shapes Using a Discrete Element Method

open access: yes, 2022
The determination of the loading density that can be achieved for a certain propellant geometry is a key factor that determines the energy content and hence the performance of propellants in a gun system.
Wurster, Sebastian   +5 more
core   +1 more source

Prognostic Value of Neurofilament Light Chain and Glial Fibrillary Acidic Protein in ALD‐Related Myelopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background X‐linked adrenoleukodystrophy (X‐ALD) is a neurometabolic disorder caused by pathogenic variants in ABCD1, leading to slowly progressive spinal cord disease in nearly all affected men. Sensitive biomarkers to quantify disease severity and predict progression are needed for clinical care and trial design.
Eda G. Kabak   +4 more
wiley   +1 more source

Impulse mechanical strength improvement of alumina by surface coating

open access: yesCailiao gongcheng
To increase the impulse mechanical strength of alumina, the pore structure of alumina was modified by surface coating. It was found that the impulse mechanical strength of alumina samples coated with aluminum chloride increases from 35 MPa to 51 MPa and ...
CHEN Zhiqiang   +5 more
doaj   +1 more source

The Study of HEMs Based on the Mechanically Activated Intermetallic Al12Mg17 Powder

open access: yesMolecules, 2020
In this work, Al–Mg intermetallic powders were characterized and obtained by melting, casting into a steel chill and subsequent mechanical activation in a planetary mill. The method for producing Al12Mg17 intermetallic powder is presented. The dispersity,
Sergei Sokolov   +3 more
doaj   +1 more source

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