Results 21 to 30 of about 21,310 (208)

Analytical Solution for Pressure-Coupled Combustion Response Functions of Composite Solid Propellants [PDF]

open access: yes, 2008
This paper extends the classical analytical solution for small perturbation analysis of the pressure-coupled response of a homogeneous propellant to any two-component composite propellant.
Cohen, Norman S.   +2 more
core   +1 more source

Crystallization Kinetics of Ammonium Perchlorate in an Agitated Vessel

open access: yesTikrit Journal of Engineering Sciences, 2009
Overall crystal growth kinetics for ammonium perchlorate in laboratory scale batch agitated vessel crystallizer have been determined from batch experiments performed in an integral mode.
Nahidh W. Kaseer   +2 more
doaj   +1 more source

THERMAL DECOMPOSITION KINETICS OF AN ENERGY COMPOSITE MATERIAL ON THE BASIS OF INERT BINDING

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2019
The results are presented of the study of thermal decomposition kinetics of the K – 2 model mixed energetic material, the main components of which are ammonium perchlorate, octogen, aluminum and an inert binder, polybutadiene, plasticized with ...
Yu.M. Milekhin   +3 more
doaj   +1 more source

Butane-1,4-diammonium bis(perchlorate)

open access: yesActa Crystallographica Section E, 2011
The butane-1,4-diammonium cation of the title compound, C4H14N22+·2ClO4−, lies on a special position of site symmetry 2/m, whereas the perchlorate anion is located on a crystallographic mirror plane.
Charmaine Arderne, Gert J. Kruger
doaj   +1 more source

Heats of formation of lithium perchlorate, ammonium perchlorate, and sodium perchlorate

open access: yesJournal of Research of the National Bureau of Standards Section A: Physics and Chemistry, 1961
Calorimetric measurements of the heats of solution of LiClO4(c), NH4ClO4(e), and NaClO4(c) have been made. The results have been combined with the heats of formation of KClO4(c), KCl(c), LiCl(c), NH4Cl(c), and NaCl(c), to obtain the following heats of formation: LiClO 4 ( c ) , Δ Hf ° ( 25 ° C ) = - 380.27 ± 1.21 kj / mole = - 90.89 ± 0.29 ...
Gilliland, Alexis A., Johnson, Walter H.
openaire   +2 more sources

Autophage engines: towards a throttleable solid motor [PDF]

open access: yes, 2018
This paper describes the instrumented test firing of a rocket that seeks to combine the throttleability of a liquid-fueled engine with the simplicity of a solid motor.
Dron, Mykola   +5 more
core   +1 more source

Charge‐Driven Self‐Assembly of Cholesterol Surfactants into Biofunctional Nanodiscs with Antiviral Activity

open access: yesAngewandte Chemie, Volume 138, Issue 1, 2 January 2026.
A modular synthesis strategy for cholesterol‐oligo‐glycerol‐based surfactants with tunable nonionic to anionic head groups is reported. The precise control of multivalent surface charges directs self‐assembly and transforms cholesterol vesicles into nanodiscs.
Yanping Long   +8 more
wiley   +2 more sources

Solid transformations as a variant of three-dimention nanotechnology [PDF]

open access: yes, 2011
The given article discusses a variant of natural nanotechnology in a volume material under solid-phase transformation. The article provides results on acoustic splitting in ammonium oxide NH4ClO4 in the low-temperature region.
Belomestnykh, V.N., Tesleva, E.P.
core  

Nano‐Engineered Titanium Implants Loaded With Gingival Fibroblasts‐Derived Microvesicles Enhance Early Osseointegration And Soft Tissue Attachment In Vivo

open access: yesAdvanced Healthcare Materials, EarlyView.
Our study showed that human primary gingival fibroblast–derived microvesicles on nano‐engineered titanium implants promote early osseointegration and soft‐tissue attachment in vivo. ABSTRACT Titanium dental implants require both reliable osseointegration and peri‐implant soft tissue seal formation to ensure long‐term success. While osseointegration has
Pingping Han   +10 more
wiley   +1 more source

One-pot hydrothermal synthesis of reduced graphene oxide/zinc ferrite nanohybrids and its catalytic activity on the thermal decomposition of ammonium perchlorate

open access: yesJournal of Saudi Chemical Society, 2019
Reduced graphene oxide/Zinc ferrite (rGO/ZnFe2O4) nanohybrids are successfully decorated on the surface of the rGO sheets through a simple, one-step hydrothermal method. ZnFe2O4 nanoparticles (NPs) are homogeneously anchored on the rGO sheets.
Weiran Wang   +3 more
doaj   +1 more source

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