Results 231 to 240 of about 1,365,621 (363)

Initiation Kinetics of Latent Olefin Metathesis Precatalysts

open access: yesAdvanced Synthesis &Catalysis, EarlyView.
Ready, set, go: Initiation of several latent olefin metathesis precatalysts was measured both by light and heat activation. Sulfur‐chelated ruthenium precatalysts were initiated more efficiently when thermally activated, while the precatalysts with phosphite ligands were more responsive to photochemical stimulation. The initiation results were compared
Nadir Rosenblat   +3 more
wiley   +1 more source

Report on Some of the Sessions of the 2024 HEA Congress [PDF]

open access: yesFinancial and Economic Review
Ferenc Tóth   +3 more
doaj  

Study the random walking of the ISX60 market index For the Iraq Stock Exchange

open access: bronze, 2019
Sadik Jafar Al-Attabi   +3 more
openalex   +2 more sources

A Compact Optical Sensor to Self‐Assess Skin Health after Sun Exposure

open access: yesAdvanced Sensor Research, EarlyView.
This work presents a portable, low‐cost device capable of detecting changes in the skin associated with excessive sun exposure through reflectance measurements. In vitro validation experiments in skin‐mimicking tissue phantoms showed the device can detect relative pigmentation changes as small as 5%.
Ying Zhi Cheong   +6 more
wiley   +1 more source

Gas‐ and Liquid‐Phase Catalysts for Solar‐Driven Catalytic Ammonia Decomposition

open access: yesAdvanced Sustainable Systems, EarlyView.
Amid the drive toward carbon‐neutral hydrogen, this review analyzes photocatalytic ammonia decomposition in gas‐ and liquid‐phase systems. It examines catalyst families—TiO2, ZnO, Ru, single‐atom, and antenna–reactor designs. This study summarizes advances in bandgap tuning, active‐site and cocatalyst engineering, photothermal coupling, and machine ...
Zhuohao Yang   +4 more
wiley   +1 more source

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