Results 71 to 80 of about 3,348,595 (338)

Mitigation of Cracks in High‐Performance Nickel‐Based Superalloys in Powder Bed Fusion Laser Beam of Metals Using a Metal Matrix Composite Approach

Advanced Engineering Materials, EarlyView.
High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt, Maël Pontoreau, Christian Haase, Johannes‐Henrich Schleifenbaum   +3 more
wiley   +1 more source

On the Deformation Behavior of Metastable CrMnNi Steels Processed by Directed Energy Deposition in Different Temperature Regimes

Advanced Engineering Materials, EarlyView.
In the present study, metastable CrMnNi steels with varying chemical compositions and a concomitantly altered stacking fault energy are processed via directed energy deposition and afterwards tested via tensile tests at different temperatures. The present study shows the influence of the manufacturing process on the elemental deformation mechanisms for
Julia Richter, Thomas Wegener, Florian Stredak, Gert Bartzsch, Steffen Scherbring, Javad Mola, Olena Volkova, Stefan Böhm, Thomas Niendorf   +8 more
wiley   +1 more source

Recommendations for incorporating invasive species into U.S. climate change adaptation planning and policy

Conservation Science and Practice
Executive Order No. 14008 mandated that U.S. federal agencies and departments develop Climate Change Adaptation Plans to enhance the nation's resilience to climate change.
Laura Brewington, LeRoy Rodgers, Leigh Greenwood   +2 more
doaj   +1 more source

Impact of Various Rotary Friction Welding Process Parameters on the Mechanical Properties of a Steel–Aluminum Joint

Advanced Engineering Materials, EarlyView.
Rotary friction welding of steel E355 and the aluminum alloy EN AW‐6082 can lead to the formation of brittle intermetallic phases. The primary process parameters are varied in order to determine their influence on this intermetallic phase formation and the resulting mechanical properties.
Laura Huber, Phillipp Schultheiß, Michael Thiele, Christoph Rößler, Heinz Werner Höppel   +4 more
wiley   +1 more source

Intermediação de Interesses Regionais no Brasil: O Impacto do Federalismo e da Descentralização

Dados: Revista de Ciências Sociais, 1998
Through the process of redemocratization, Brazil has become a highly decentralized nation. The results of this transformation are visible in the federal arena, where financial problems have been encountered and presidents have run into trouble forming ...
Souza Celina
doaj  

Federal government tax independence, statutory quota and capital investment. [PDF]

Heliyon, 2023
Omodero CO, Alege PO.
europepmc   +1 more source

In Situ Formation of a Melt‐Solid Interface Toward Stable Oxygen Reduction in Protonic Ceramic Fuel Cells

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Protonic ceramic fuel cells offer a promising route to generate power efficiently but face critical challenges in achieving industrially viable activity and stability at their cathodes in CO2‐containing air. This report proposes a new cathode material design strategy to enable the cathode to be both catalytically active and CO2 tolerant through the ...
Desheng Feng, Mengran Li, Vanessa K. Peterson, Rijia Lin, Anita D'Angelo, Olexandra Marenych, Anya Yago, Dominique Appadoo, Tianjiu Zhu, Muhammad Yazid Bin Zulkifli, Shuai Gao, Yuming Wu, Xiaohe Tian, Xiaoyang Du, Zhonghua Zhu   +14 more
wiley   +1 more source

Expectations, Disconfirmation, and Citizen Satisfaction with the US Federal Government: Testing and Expanding the Model

, 2013
Recent research on citizen satisfaction with government services has examined the expectancy-disconfirmation model (EDM), a model suggesting that satisfaction judgments are formed through a cognitive process relating prior expectations to perceived ...
Forrest V. Morgeson
semanticscholar   +1 more source

Thermally Induced Gelling Systems Based on Patchy Polymeric Micelles

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
A novel strategy to design thermally induced gelling systems with tunable material properties is reported. Polymeric mixed‐shell micelles displaying multiple thermosensitive patchy domains formed hydrogels by assembling into well‐entangled worm‐like network structures upon heating to body temperature. The patchy micelle design significantly affects the
Binru Han, Shota Fujii, André J. van der Vlies, Masoud Ghasemi, Joshua T. Del Mundo, Sarah N. Kiemle, Esther W. Gomez, Enrique D. Gomez, Ralph H. Colby, Urara Hasegawa   +9 more
wiley   +1 more source

Entre autorité fédérale et provinciale : territoire et ressources dans les provinces de l’ouest canadien

Nuevo mundo - Mundos Nuevos, 2008
In western Canada, aboriginal rights to land and its underground resources are intimately linked to the terms of the so-called numbered treaties signed, between 1871 and 1921, between First Nations and the federal government.
Marine Le Puloch
doaj   +1 more source