Results 31 to 40 of about 72,527 (347)

Research Progress of Bonding Agents and Their Performance Evaluation Methods

open access: yesMolecules, 2022
Bonding agents are an important type of additive that are used to increase the interfacial interaction in propellants. A suitable bonding agent can prevent the dewetting between the oxidant and binder, and thus effectively improve the mechanical ...
Junyan Gan   +7 more
doaj   +1 more source

Long term investigation of bonding characteristics between PVC based inhibitor and HTPB/IPDI based propellant [PDF]

open access: yesScientific Technical Review
Bonding characteristics between extruded polyvinyl chloride (PVC) inhibitor and casted hydroxyl terminated polybutadiene/isophorone isocyanate (HTPB/IPDI) propellant, investigated in a long period of time, are topics of this paper. Basic statements about
Radulović Jovan, Milojković Aleksandar
doaj   +1 more source

Thermochemistry of Combustion in Polyvinyl Alcohol + Hydroxylammonium Nitrate

open access: yesAerospace, 2021
A mixture of polyvinyl alcohol (PVA) and hydroxylammoniun nitrate (HAN) forms a gummy solid known as a plastisol, which is ionically conducting. When an electrostatic potential of 200 V DC is applied across the plastisol, it ignites.
James K. Baird, Robert A. Frederick
doaj   +1 more source

MET and NF2 alterations confer primary and early resistance to first‐line alectinib treatment in ALK‐positive non‐small‐cell lung cancer

open access: yesMolecular Oncology, EarlyView.
Alectinib resistance in ALK+ NSCLC depends on treatment sequence and EML4‐ALK variants. Variant 1 exhibited off‐target resistance after first‐line treatment, while variant 3 and later lines favored on‐target mutations. Early resistance involved off‐target alterations, like MET and NF2, while on‐target mutations emerged with prolonged therapy.
Jie Hu   +11 more
wiley   +1 more source

Determining the major propellants of I.R. Iran’s defensive diplomacy in regional and international levels [PDF]

open access: yesآینده‌پژوهی دفاعی, 2016
Defensive Diplomacy is a part of government policy which plays role as an important tool in achieving the major objectives of the armed forces and its purpose can be considered to develop favorable national and international political conditions for ...
Hossein Minaee   +3 more
doaj  

Rocket Solid Propellant Alternative Based on Ammonium Dinitramide [PDF]

open access: yesINCAS Bulletin, 2017
Due to the continuous run for a green environment the current article proposes a new type of solid propellant based on the fairly new synthesized oxidizer, ammonium dinitramide (ADN).
Grigore CICAN, Alexandru-Daniel MITRACHE
doaj   +1 more source

Beyond superconductivity towards novel biomedical, energy, ecology, and heritage applications of MgB2

open access: yesGreen Chemistry Letters and Reviews, 2022
Twenty years passed since the discovery of superconductivity in MgB2. Although there is much progress, the use of superconductors, in general, and of MgB2 in particular, remains limited.
Petre Badica, Dan Batalu
doaj   +1 more source

Functional parameters of spermatozoa obtained by a new selection device

open access: yesFEBS Open Bio, EarlyView.
This study compares density gradient centrifugation and the LensHooke CA0™ device for sperm separation. DGC requires multiple steps, specialized equipment, and technical expertise. In contrast, the CA0 device offers key practical and methodological advantages, resulting in a faster, simpler, and more affordable sperm selection method.
Julio C. Chávez   +8 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

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