Results 71 to 80 of about 576 (185)

In Situ Formation of a Highly Selective Nickel Single Atom Catalyst for Electrochemical CO2 Reduction to CO

open access: yesAdvanced Materials, EarlyView.
Development of a novel method for synthesizing Ni single atom catalysts for highly selective electrochemical CO2 reduction in situ. This catalyst achieves 100% selectivity for CO and is formed in an industrially relevant cell architecture. Using post‐mortem XRD, STEM, and EDS and operando XAS, the identity of the active site and the mechanism behind ...
Ian Street   +5 more
wiley   +1 more source

Conductive Tin Oxide Under the Thermal Budget of Perovskite/TOPCon Tandems: Toward Indium‐Free Contacts

open access: yesAdvanced Materials Technologies, EarlyView.
This work demonstrates that achieving conductive undoped SnOx contacts required careful tailoring of oxygen vacancy (VO) tuning and defect engineering. Controlling oxygen deposition pressure and low‐temperature annealing (300°C) optimizes defect stoichiometry and mitigates carrier scattering. This low thermal budget approach significantly enhances Hall
Paul Llontop   +13 more
wiley   +1 more source

El mesianismo proto-chií del primer islam

open access: yes, 2016
In these lines I try to describe and interpret a relevant part of the polidox background –sectarian milieau, ac­cording to another terminology- from where Shi’ism would eventually emer­ge.
González Ferrín, Emilio
core   +1 more source

A State‐Adaptive Koopman Control Framework for Real‐Time Deformable Tool Manipulation in Robotic Environmental Swabbing

open access: yesAdvanced Robotics Research, EarlyView.
This work presents a state‐adaptive Koopman linear quadratic regulator framework for real‐time manipulation of a deformable swab tool in robotic environmental sampling. By combining Koopman linearization, tactile sensing, and centroid‐based force regulation, the system maintains stable contact forces and high coverage across flat and inclined surfaces.
Siavash Mahmoudi   +2 more
wiley   +1 more source

Miniaturized Magnetic Tip Design for Endoluminal Vine Robot Navigation

open access: yesAdvanced Robotics Research, EarlyView.
A magnetic tip mount is designed for a miniaturized 7 mm soft‐growing vine robot to enable wireless magnetic steering and onboard imaging, while preserving a 3 mm working channel. The internal–external ring magnets design balances magnetic attachment with low eversion pressure. Experiments demonstrate ±90° steering, 34 mm bending radius, and successful
Andrea Yanez Trujillo   +4 more
wiley   +1 more source

La tombe comme isthme (barzakh) entre les vivants et les morts : points de vue croisés du soufisme et du shī‘isme imāmite (al-Ghazālī et al-Fayḍ al-Kāshānī)

open access: yesRevue des Mondes Musulmans et de la Méditerranée, 2019
Visiting the tombs and meditating on the afterlife occupy an important place in religious life and theological thinking in Islam, whether in – predominantly Sunni – Sufism or in Imāmi Shī‘ism. This is shown by some chapters of al- Ghazālī’s (d. 505/1111)
Mathieu Terrier
doaj   +1 more source

Copper‐Driven Epithelial Barrier Disruption: A Novel Mechanism of COPD Acute Exacerbations Mediated by the TNF‐α/ATP7A Axis

open access: yesAdvanced Science, EarlyView.
This study reveals a copper‐driven mechanism of COPD acute exacerbations mediated by the TNF‐α/ATP7A axis. TNF‐α suppresses the copper transporter ATP7A via competitive NF‐κB/CREB1/CBP signaling, resulting in intracellular copper accumulation, mitochondrial oxidative stress, and epithelial barrier disruption.
Xinru Xiao   +7 more
wiley   +1 more source

Visualizing Belief and Piety in Iranian Shi‘ism

open access: yesAmerican Journal of Islam and Society, 2011
In her book, Ingvild Flaskerud once and for all dispels the idea that Islam lacks and opposes all forms of visual art. Hers is a pioneering work, which guides her readers through Twelver Shi‘i visual culture in Iran.
Edith Szanto
doaj   +1 more source

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