Results 101 to 110 of about 5,470,360 (344)

Disordered Rocksalts as High‐Energy and Earth‐Abundant Li‐Ion Cathodes

open access: yesAdvanced Materials, EarlyView.
Disordered rocksalts with lithium excess (DRX) offer a new direction in Li‐ion cathode design beyond conventional Ni‐ and Co‐based materials. This review highlights the design principles, synthesis strategies, and performance optimization of DRX oxides and oxyfluorides for energy‐dense, sustainable batteries using Earth‐abundant transition metals and ...
Han‐Ming Hau   +10 more
wiley   +1 more source

Les conceptions initiales des élèves turcs de CM2 relatives aux séismes

open access: yesCybergeo, 2005
Knowledge about earthquakes is therefore a complex knowledge, derived from a long history, transformed into knowledge to be taught through the choice of official programs, textbooks, taking into account the process of building knowledge in children, and ...
Burckin Dal
doaj   +1 more source

Environmental Control of Ferroelectricity in Hafnia Films

open access: yesAdvanced Materials, EarlyView.
A reversible transition from nonferroelectric to ferroelectric behavior is achieved in hafnia films by modulating the surrounding atmosphere. The domain relaxation dynamics exhibit high sensitivity to environmental factors, including gas composition (ambient, N2, CO2, O2) and relative humidity, highlighting the crucial role of the measurement ...
Waseem Ahmad Wani   +10 more
wiley   +1 more source

Four Fundamental Methodological Problems of Landscape Geography

open access: yesMiscellanea Geographica: Regional Studies on Development, 2004
Fundamental methodological problems of geography as a science have been identified by Chojnicki (1999) in the following list: goal of research, separate character of research, expected results, and form of scientific explanation.
Ostaszewska Katarzyna
doaj   +1 more source

Rapports genrés au terrain en géographie physique

open access: yesGéographie et Cultures, 2012
Traditionally the physical geographer is a masculine figure, especially in his relation to fieldwork. This study is based on a questionnaire and interview survey with members of the French physical geographers’ community.
Anne Jégou   +2 more
doaj   +1 more source

Solar Trap‐Adsorption Photocathode for Highly Stable 2.4 V Dual‐Ion Solid‐State Iodine Batteries

open access: yesAdvanced Materials, EarlyView.
A novel organic||I2 battery system with a photo‐assisted mechanism is developed. This design offers accelerated iodine conversion kinetics, enhanced utilization of iodine ions, avoided polyiodide's shuttle, and four‐electron reaction mechanism for iodine species conversion.
Xueying Zhang   +9 more
wiley   +1 more source

« C’est vous le transfuge ? »

open access: yesGéographie et Cultures, 2014
The author presents a retrospective reflection on his unusual career in geography as a disciplinary field. Following classical training in geography and specialization in geomorphology, he undertook a scientific bifurcation towards social geography.
Emmanuel Jaurand
doaj   +1 more source

Development of 3D Reversible Smart Energy‐Saving Devices for Adaptive Energy Management

open access: yesAdvanced Materials, EarlyView.
Smart energy‐saving devices with 3D structures operate passively and exhibit reversible solar heating and radiative cooling functions. These devices demonstrate superior performance in building thermal management through dual‐mode operation and provide an optimized 3D energy management platform applicable across various angular environments.
Ho Jun Jin   +11 more
wiley   +1 more source

A Roadmap for Plasma‐Enabled Electrocatalysis in Urea Production

open access: yesAdvanced Materials, EarlyView.
A modular plasma—electrochemical platform enables fully electrified urea synthesis from air and CO2 under ambient conditions. This Review integrates plasma oxidation, C─N coupling electrolysis, mechanistic insights, and techno‐economic metrics into a roadmap for scalable, distributed, and renewable fertilizer production.
Jingwen Huang   +6 more
wiley   +1 more source

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