Results 31 to 40 of about 61,471 (312)

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

Proizvodnja piropatrona i raketnih motora pilotskih sedišta / Production of cartridges and eject seat rocket motors

open access: yesVojnotehnički Glasnik, 2006
Ovaj rad sadrži opis uspešnog razvoja i proizvodnje piropatrona, pogonskih punjenja i raketnih motora izbacivih pilotskih sedišta. Opisan je proces razvoja putem kopiranja stranog rešenja i njihovih modifikacija.
Milorad Savković, Danilo Serdarević
doaj   +1 more source

A Study on the Pressure Behavior Inside Propellant Line of Satellite [PDF]

open access: yesJournal of Astronomy and Space Sciences, 2002
One of the way to derive design parameters of the fuel feeding system in satellite propulsion system is to analyze unsteady flow of liquid propellant (hydrazine).
Jin-Chul Choi, Jeong-Soo Kim
doaj   +1 more source

Thermal Decomposition of Ammonium Dinitramide (ADN) as Green Energy Source for Space Propulsion

open access: yesAerospace, 2023
The thermal decomposition of an ammonium dinitramide-based energetic compound was conducted for the first time using a dispersive inductively coupled plasma mass spectrometer, DTA-TG analysis, and pyrolysis at a constant temperature. A liquid droplet was
Zakaria Harimech   +4 more
doaj   +1 more source

Solid propellant rocket motor [PDF]

open access: yes, 1973
The characteristics of a solid propellant rocket engine with a controlled rate of thrust buildup to a desired thrust level are discussed. The engine uses a regressive burning controlled flow solid propellant igniter and a progressive burning main solid ...
Behm, J. W.   +3 more
core   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

open access: yesFEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke   +4 more
wiley   +1 more source

Ionic Liquid‐Filled Polyamide Microcapsules Obtained by Interfacial Polymerization

open access: yesAdvanced Materials Interfaces
Microencapsulated ionic liquids (ILs) have a wide range of exciting properties. They can be synthesized by a variety of methods, of which interfacial polymerization represents a very simple, fast, and reliable production process, but the number of ...
Robin Scholl, Dominic Freudenmann
doaj   +1 more source

Influence of the Ignition Method on the Characteristics of Propellant Burning in the Context of the Geometric Burning Model

open access: yesEnergies, 2023
Mathematical models for the simulation of the operation of various projectile-throwing systems are continuously modified, simultaneously with the development of propellants.
Zbigniew Leciejewski   +2 more
doaj   +1 more source

Volumetric calibration of a propellant utilization system [PDF]

open access: yes, 1970
Method of calibrating capacitance-type propellant mass sensors provides meaningful mass units accurate to within one percent of the total load. Neither special propellant loading nor test firing is required.
Lenning, J. J., Simko, T.
core   +1 more source

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