Results 111 to 120 of about 6,488 (192)
Microfabrication of Soft Millirobots Propelled by Low Voltage Electrohydraulic Actuators
Manual layer‐by‐layer assembly is replaced by wafer‐level MEMS batch fabrication for compliant polymer‐based electrohydraulic actuators. The microfabricated devices integrate sacrificially defined microcavities, Parylene‐C‐sealed inlets, and multilayer polymer–metal films.
Shai Shmulevich +2 more
wiley +1 more source
PFOA can substitute acetate ligands in zinc terpyridine complexes to elicit spectroscopic changes. This phenomenon in solution is exploited for electrochemical sensing using discontinuous Nafion overlayer as a preconcentrating membrane to provide detection limits of 0.407 pM and a linear range of 0.5–10 pM.
Alyah Buzid +3 more
wiley +1 more source
Factors affecting diffusion of atmospheric fluorocarbons into unsaturated porous materials
Atmospheric buildup of two fluorocarbon gases, CC1₃F (F-11) and CC1₂F₂ (F-12), during the past forty years has been documented by previous workers. The present study involved measurements of F-11 and F-12 concentrations in soil air within unconsolidated ...
Earp, Douglas E.(Douglas Eugene)
core +2 more sources
Al2O3, widely used in the catalytic decomposition of fluorocarbons, is known to be rapidly deactivated owing to its transformation to AlF3. Accordingly, in this study, metal‐impregnated γ‐Al2O3 catalysts (M/γ‐Al2O3) were synthesized and their long‐term ...
Myeong‐Heon Yoo +8 more
doaj +1 more source
Improving the dispersion of nano‐aluminum is of great importance in explosives and propellants. The spherical Al/HMX/CuO energetic micro‐units were prepared using microchannel technology, which significantly improved the uniformity and dispersion of nano‐Al. It also enhanced the mass and heat transfer efficiency between the fuel and oxidizer components,
Gazi Hao +12 more
wiley +1 more source
The interactions of self‐assembled nanocarriers with cell membranes are programmable through amphiphile design. We identify how head and tail chemistry govern distinct interaction mechanisms and introduce ΔGtransfer, a unified thermodynamic descriptor that predicts nanoparticle behaviour from simple molecular simulations.
Mahsa Nami +13 more
wiley +1 more source
Velocity of sound measurements in gaseous per-fluorocarbons and their custom mixtures
An inexpensive sonar instrument was prepared for measurements of sound velocity in two fluorocarbon vapors; per-fluoro-n-propane (C3F8), per-fluoro-n-butane (C4F10), and their custom mixtures.
Vacek, V. +5 more
core
Catalytic halodefluorination of aliphatic carbon–fluorine bonds
A variety of halosilanes, in conjunction with aluminum catalysts, convert fluorocarbons into higher halocarbons. Bromination and iodination of fluorocarbons are more effective than chlorination in terms of yield and activity.
Fraser, Craig; id_orcid +3 more
core +1 more source
Hydrophilic substituents were introduced onto the silicon atoms of random polysilsesquioxanes (PSQs) to improve water permeability and absorptivity for exploring the applications of PSQ materials as heat‐ and chlorine‐resistant water desalination reverse osmosis (RO) membranes and scratch‐resistant antifogging coating materials.
Takashi Hamada +2 more
wiley +1 more source
The Price of Prosperity? A Historical Account of Regulating Industrial Pollution in the Netherlands
ABSTRACT Regulatory governance and state‐corporate crime studies link persistent industrial pollution to long‐term regulatory–industry interactions, yet little is known about how these interactions evolve and become entrenched. This article examines two enduring cases of industrial pollution in the Netherlands—Hoogovens/Tata Steel and DuPont de Nemours/
Karin van Wingerde +3 more
wiley +1 more source

