Results 141 to 150 of about 352,526 (370)

Incorporation of lanthanide ions into lead titanate [PDF]

open access: yesarXiv, 2010
A series of lanthanide, Ln, ion doped lead titanate ceramics, at 2 and 8 at.%, have been prepared with starting compositions Pb1-3x/2LnxTiO3, Ln = La, Nd, Sm, Eu, Gd, Dy, using a standard ceramic method. Structural, and differential scanning calorimetry, measurements are reported. Doping with La3+ results in a reduction in tetragonality and cell volume;
arxiv  

Quality assurance procedures for V378A matrix resin [PDF]

open access: yes, 1985
A characterization methodology has been developed on which to base quality assurance procedures for U.S. Polymeric V378A bismaleimide matrix resin. Chemical composition is established by partition reverse phase and size exclusion liquid chromatography ...
Dynes, P. J., Hamermesh, C. L.
core   +1 more source

Iridium Oxide Inverse Opal Anodes with Tailored Porosity for Efficient PEM Electrolysis

open access: yesAdvanced Functional Materials, EarlyView.
The synthesis of Iridium‐based Inverse Opals (Ir‐IO) is reported as electrocatalyst for Proton exchange membrane water electrolysis (PEM‐WE). Using the developed protocol it produces highly porous materials consisting either of metallic, oxidic Iridium or a combination thereof with large surface areas.
Sebastian Möhle   +2 more
wiley   +1 more source

ASSAY OF ACETYLSALICYLIC ACID IN DRUG PRODUCTS BY DIFFERENTIAL SCANNING CALORIMETRY

open access: yesРазработка и регистрация лекарственных средств, 2019
Five dosage forms from various manufacturers containing acetyl salicylic acid was investigated with the DSC method. It was found that the amount of acetylsalicylic acid in these preparations is equal to 80-85 wt.%, which corresponds to the regulatory ...
A. M. Stoinova   +2 more
doaj  

Superionic Disulfonic Acid Polymers

open access: yesAdvanced Functional Materials, EarlyView.
A strategy is presented to enhance the mechanical and ion transport properties of acid‐functionalized polymers through controlled polymerizations of precisely designed disulfonic acid monomers with well‐defined functional group arrangements. This approach allows for fine control over molecular interactions, and unexpected hydrophobic characteristics ...
Xuelang Gao   +5 more
wiley   +1 more source

Drug-Excipient Compatibility Studies in Formulation Development: Current Trends and Techniques [PDF]

open access: yes, 2015
The safety, efficacy, quality and stability of a formulation are the cornerstones of any new drug development process. In order to consistently maintain these attributes in a finished dosage form, it is important to have a comprehensive understanding of ...
Dave, Vivek S   +4 more
core   +1 more source

High Thermoelectric Performance in Low‐Cost Cu8SiSxSe6‐x Argyrodite

open access: yesAdvanced Functional Materials, EarlyView.
This study discovers the great potential of Cu8SiSxSe6‐x argyrodites as new, low‐cost, Te‐free thermoelectric materials. The proposed defect scheme suppresses the phase transition, enhances the weighted mobility and optimizes the grain boundary contacts.
Taras Parashchuk   +7 more
wiley   +1 more source

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