Results 141 to 150 of about 100,855 (336)
"Dry-column" chromatography of plant pigments [PDF]
, 1973 Separation of plant pigments which can be accomplished on thin-layer silica plates with mixture of petroleum ether, halocarbon, acetone, and polar solvent can be readily translated into dry-column technique that yields reproducible chromatograms after ...
Lehwalt, M. F. +2 more
core +1 more source
Advanced Functional Materials, EarlyView.Materials exist that are useful for gamma scintillation, radiation shielding, neutron‐gamma pulse shape discrimination (PSD), thermal neutron detection, or high refractive index applications. While certain materials have exhibited optimal performance for each of these applications, none achieve multiple functions.
Isabelle Winardi +13 more
wiley +1 more source
Медицина неотложных состоянийDespite high chemical inertness of polytetrafluoroethylene, its pyrolysis, or the incomplete combustion reaction (oxidation-free thermal degradation), can lead to a rapid onset of flu-like symptoms when the resulting products are inhaled. This phenomenon
O.V. Kravets +3 more
doaj +1 more source
Dual‐Ligand Metal‐Organic Frameworks via In Situ Amidoxime Engineering for Selective Ion Separation
Advanced Functional Materials, EarlyView.Inspired by microbial ion‐trapping mechanisms, a mild and universal strategy is developed to construct highly porous amidoxime‐functionalized MOFs. DFT calculations and molecular force measurements reveal that the dual‐ligand amidoxime configuration significantly strengthens Ga(III) affinity.
Zhifang Lv +9 more
wiley +1 more source
Improved linings for integrating spheres [PDF]
, 1970 Sphere surface is covered with plain weave of glass fibers coated with polytetrafluoroethylene and one or two layers of magnesium oxide vapor. The resultant lining is suitable for measurement of radiation in the ultraviolet, visible, and near-infrared ...
Fergerson, P. O., French, B. O.
core +1 more source
Fluorine‐Free Soft Nanocomposites for High‐Speed Liquid Impact Repellence
Advanced Functional Materials, EarlyView.Fluorine‐free soft nanocomposite coatings are developed using silicone oil‐mediated mechanical‐stiffness control, enabling ‘dry’ liquid‐repellent surfaces that resist high‐speed water jet impacts up to ∼60 m/s. By tuning nanoparticle loading and oil content, the coatings also achieve >90% optical transparency, amphiphobicity with impact resistance to ...
Priya Mandal +4 more
wiley +1 more source
Some design considerations, large expulsion bladders for nitrogen tetroxide and hydrazine [PDF]
Chemical compatibility, permeation, and fuel tank bladder collapse considered for Advanced Liquid Propulsion System ...
Bauman, A. J.
core +1 more source
Polytetrafluoroethylene lubricates ball bearings in vacuum environment [PDF]
, 1966 Polytetrafluoroethylene /PTFE/ balls are interspersed among steel ball bearings to provide a dry lubricant in a high vacuum environment.
core +1 more source
Accelerated Discovery of High Performance Ni3S4/Ni3Mo HER Catalysts via Bayesian Optimization
Advanced Functional Materials, EarlyView.Integrated workflow accelerates the catalyst discovery of hydrogen evolution reaction via Bayesian optimization. An experiment‐trained surrogate model proposes synthesis conditions, guiding iterative refinement using electrochemical performance metrics.
Namuersaihan Namuersaihan +9 more
wiley +1 more source
A conformal oxidation-resistant, plasma-polymerized coating [PDF]
A comparative study was made of the surface recession (etching) of thin films of plasma polymerized tetrafluoro ethylene (PPTFE), polytetrafluoro ethylene (PTFE), and ion-beam sputter deposited polytetrafluoro ethylene (SPTFE) exposed to ground-state ...
Golub, Morton A. +2 more
core +1 more source