Results 81 to 90 of about 131,894 (228)

Dynamic Etching‐Induced Cl‐Terminated Ti3C2Clx/Ti3ZnC2 Heterostructure for Ammonia Electrosynthesis and Zinc‐Nitrogen Batteries

Advanced Science, EarlyView.
A stable Ti3C2Clx/Ti3ZnC2 heterostructure, fabricated by dynamic etching, exhibits outstanding electrocatalytic NRR activity (NH3 yield: 20.1 µg h−1 mg−1, FE: 38.1%) in alkaline media. The corresponding Zn‐N2 battery achieves a peak power density of 36.5 µW cm−2 and an NH3 yield of 13.1 µg h−1 mg−1, providing an advanced strategy for NH3 and ...
Yu Wang, Ying Sun, Liqun Ye, Jichi Liu, Hui Li, Yang Fu, Fengzhan Sun, Jieshan Qiu, Chang Yu, Tianyi Ma   +9 more
wiley   +1 more source

Tempo Fóssil: petróleo, arte e corpo na cosmopolítica do Antropoceno

Revista Brasileira de Estudos da Presença, 2017
Uma investigação artística e teórica sobre os combustíveis fósseis, os agenciamentos industriais na natureza e seus reflexos nas estruturas sociais e sistemas de poder. Com o objetivo de examinar a atuação das artes nos embates cosmopolíticos do presente
Mari Fraga (Universidade Federal do Rio de Janeiro – UFRJ, Rio de Janeiro/RJ, Brasil)
doaj  

Terremoto Fóssil Evidenciado pela Brecha Tectônica Silicificada da Área de Cabo Frio, RJ, e sua Relação com a Gênese do Movimento Intermitente da Falha e o Hidrotermalismo Amagmático Associado [PDF]

Anuário do Instituto de Geociências, 2012
Este trabalho apresenta o estado atual das pesquisas geológicas e petrográficas da brecha tectônica silicificada na área de Cabo Frio, RJ. A partir dos resultados, os autores propõem um modelo para o mecanismo de deslocamentos intermitentes das falhas ...
Akihisa Motoki, Thais Vargas, Woldemar Iwanuch, Dean Pereira de Melo, Susanna Eleonora Sichel, Alex Balmant, José Ribeiro Aires, Kenji Freire Motoki   +7 more
doaj  

Integrating Machine Learning With Constant‐Potential Simulation to Unravel Charge‐Transfer Mechanisms in Electrochemical Nitrogen Fixation

Advanced Science, EarlyView.
Integrating interpretable machine learning with the fixed‐potential method reveals a novel mechanism: the catalytic activity of the electrochemical nitrogen reduction reaction is governed by partial charge transfer, induced by variations in the intermediate potential of zero charge under constant potential.
Yufei Xue, Dushuo Feng, Yuefei Zhang, Yang Zhang, Yalong Jiao, Aijun Du, Guoping Gao   +6 more
wiley   +1 more source

O Que nos Faz Humanos? Bases Empíricas e Evolutivas das Principais Transições da Linhagem Hominínia

Revista de Filosofia Moderna e Contemporânea, 2018
A evolução da linhagem humana é um assunto de alta relevância para o entendimento da morfologia e do comportamento de humanos modernos. Todavia, no Brasil há pouca produção bibliográfica sobre o assunto e uma carência na formação de alunos versados sobre
Pedro Da Glória
doaj   +1 more source

Recent Advances in Carbon Cathode Materials toward High‐Performing Zinc‐Ion Hybrid Supercapacitors

Advanced Science, EarlyView.
Aqueous zinc‐ion hybrid supercapacitors (ZHSCs) have emerged as promising next‐generation electrochemical energy‐storage devices. Porous carbon materials have been extensively studied as cathodes, with advances in tailoring pore structures and material properties to enhance performance.
Take Hirooka, Zhaolin Liu, Ivan P. Parkin, Guanjie He   +3 more
wiley   +1 more source

CONTRIBUIÇÃO DO PARQUE FLORESTA FÓSSIL NO MEIO URBANO DE TERESINA (PI)

O presente artigo objetiva destacar a importância do Parque Floresta Fóssil do rio Poti para Teresina–PI, analisando sua viabilidade de uso, assim como demonstrar os agentes e processos atuantes na área do parque.
Jackson Freitas, Sheila Pereira Pinho, Livânia Norberta Oliveira   +2 more
core   +1 more source

A Global Methane Observation System to Reduce Uncertainty for Anthropogenic and Natural Sources and Sinks for Detecting and Attributing Climate Feedbacks

Advanced Science, EarlyView.
Conceptual illustration of a Global Ecosystem Methane Observing System (GEM‐OS) integrating satellites, aircraft, atmospheric networks, and ecosystem measurements to quantify methane emissions from anthropogenic and natural sources. The multi‐scale observing framework improves source attribution, reduces uncertainty in regional methane budgets, and ...
P. Ciais, S. Peng, J. Chang, F. Li, Q. Zhu, K. Yuan, G. Hugelius, H. Li, Y. Cai, F. Chevallier, K. Tibrewal, E. A. Kort, K. Arndt, J. Watts, B. Buma, N. Besic, P. I. Palmer, H. Cadillo‐Quiroz, E. Euskirchen, M. J. Gondwe, A. Hoyt, R. Jackson, S. Malone, D. Monteverde, S. Natali, M. Ramonet, C. Rey‐Sanchez, L. B. Sagang, E. A. G. Schuur, R. Vargas, R. Varner, Z. Zhang, B. Poulter   +32 more
wiley   +1 more source

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

Advanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen, Bapan Biswas, Apinya Ngoipala, Julia Wiktor, Ujjwal Pal, Shalini Singh   +5 more
wiley   +1 more source

The Fossil Frontier: An answer to the 3-billion fossil question

Artificial Intelligence in Geosciences
Microfossil analysis is important in subsurface mapping, for example to match strata between wells. This analysis is currently conducted by specialist geoscientists who manually investigate large numbers of physical samples with the aim of identifying ...
Iver Martinsen, Benjamin Ricaud, David Wade, Odd Kolbjørnsen, Fred Godtliebsen   +4 more
doaj   +1 more source