Results 141 to 150 of about 89,931 (179)

Scalable Fabrication of Highly Organized, Horizontally Aligned Sub‐5 nm Silicon Nanowires via Chemical Vapor Etching

open access: yesSmall Science, EarlyView.
An unprecedented silicon nano/micro‐hierarchical architecture featuring sub‐5 nm quantum silicon nanowires (SiNWs) is achieved via a single‐step, catalyst‐free chemical vapor etching process. Using a simple micro‐patterning technique, a scalable strategy for fabricating highly ordered SiNWs/micro‐pit arrays is developed.
Juyeon Seo   +6 more
wiley   +1 more source

Holistic Microstructure Control Strategies in Photopolymerization‐Induced Phase Separation of Acrylate Systems

open access: yesSmall Structures, EarlyView.
A physics‐based phase‐field model and experimental validation are combined to simulate and analyze porous microstructures from photopolymerization‐induced phase separation processes, examining factors like polarity, light intensity, curing temperature, chain transfer agents, and substrates.
Longsheng Feng   +6 more
wiley   +1 more source

Thermochemical Recycling and Degradation Strategies of Halogenated Polymers (F−, Cl−, Br−): A Holistic Review Coupled with Mechanistic Insights

open access: yesThe Chemical Record, EarlyView.
This review aims to comprehensively address recent degradation techniques (physical, chemical and biological) of halogenated waste polymers with a prime focus on thermal degradation techniques. Exploiting various metal oxides during co‐pyrolysis is deemed a viable solution for recycling halogenated polymeric waste.
Mohamed Shafi Kuttiyathil   +2 more
wiley   +1 more source

Hunting method affects cortisol levels in harvested mountain hares (Lepus timidus)

open access: yesWildlife Biology, EarlyView.
The direct effects of hunting on hunted individuals and populations have been well known for a long time. However, recently there has also been an increased focus on the indirect, non‐lethal effects of hunting. When approached by a possible threat such as a predator, the prey releases various stress hormones into the bloodstream.
Simen Pedersen   +5 more
wiley   +1 more source

Stability research on a natural circulation driven SCWR [PDF]

open access: yes, 2011
Kam, Frederik   +2 more
core  

Chemical profiling and characterisation of anthraquinone‐based polyphenols as biocolourants from Cortinarius semisanguineus

open access: yesColoration Technology, EarlyView.
Abstract Anthraquinone dyes are known for their significant colour (brightness of shade in the red, blue and green areas) and light fastness properties compared with other synthetic dyes (such as azo‐based dyes). However, challenging multi‐step synthesis of anthraquinones and limited access to fewer substituents result in insufficient reactivity ...
Arvind Negi   +2 more
wiley   +1 more source

Investigation into the aqueous and supercritical carbon dioxide dyeing of polyester and cellulose acetate: The influence of temperature and carriers on fabric coloration and dye levelling

open access: yesColoration Technology, EarlyView.
Abstract This paper investigated the effect of temperature and time on the dyeing of polyester and cellulose diacetate and demonstrated the benefits of supercritical carbon dioxide (SC‐CO2) dyeing. It was evident that the SC‐CO2 medium enabled effective coloration of polyester at lower temperatures, ca.
Peter J. Broadbent   +6 more
wiley   +1 more source

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