Results 141 to 150 of about 24,257 (309)

The Arctic Urals in the system of congruous areas: scientific approaches and economic practice

Контуры глобальных трансформаций: политика, экономика, право, 2014
Normative consolidation boundaries of the Russian Arctic does not satisfy but rather strengthens the scientific and practical interest to the neighboring territories of the zone as a natural space of state and corporate interests’ protection and specific
A. I. Tatarkin, M. B. Petrov, V. V. Litovskiy   +2 more
doaj  

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

Adaptative changes of metabolic zonation in liver cirrhosis [PDF]

, 1993
Le métabolisme des hépatocytes diffère en fonction de leur localisation proximale (zone périportale) ou distale (périvenulaire) le long des sinusoïdes hépatiques. Certaines voies métaboliques ont une localisation préférentielle, voire exclusive, dans une
Sokal, Etienne Marc
core  

Status and long-term changes of coral reefs around Zanzibar

Frontiers in Marine Science
IntroductionCoral reefs as key ecosystems in Zanzibar are exposed to several anthropogenic and natural stressors.MethodsThe benthic composition and coverage of coral reefs were investigated on three data sets involving ten coral reefs monitored from 1992
Ali M. Ussi, Mohammed S. Mohammed, Rashid J. Rashid, Mohammed A. Sheikh, Peter A. Staehr, Christopher A. Muhando, Saleh Yahya, Karsten Dahl   +7 more
doaj   +1 more source

Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

Yaquina Head zonation report protected area [PDF]

Keywords: Zonation; Strongylocentrotus purpuratus; Mytillus californianus; Katherina tunicata; Tonicella; Dialula; Serpula; Paguras; Balanus; Littorina; Orchestia; Acmaea; Pisaster ...
Huse, Diane A., St. John, Dennis, Whitney, L. Jack   +2 more
core   +1 more source

Modular Critical Element Recycling Platform Using a Nanoporous Additively Manufactured Gyroid

Advanced Engineering Materials, EarlyView.
A modular recycling platform integrates 3D‐printed nanoporous gyroid structures to enable efficient critical element recovery. This system utilizes a hierarchical architecture, combining macroscopic channels with polymerization‐induced nanoscale porosity. By systematically tuning structural wall thickness and resin formulation, the platform achieves an
Xiangyu Gao, Keldy Mason, Mert Gülçür, Rachel Paddock‐Lamb, Prince Alvin Fofanah, Zachariah A. Page, Michael Cullinan   +6 more
wiley   +1 more source

Workflow for Design of Experiments‐Based Modeling of Species Transport and Growth Kinetics in GaN Hydride Vapor Phase Epitaxy

Advanced Engineering Materials, EarlyView.
A novel workflow for investigating hydride vapor phase epitaxy for GaN bulk crystal growth is proposed. It combines Design of experiments (DoE) with physical simulations of mass transport and crystal growth kinetics, serving as an intermediate step between DoE and experiments.
J. Tomkovič, G. Lukin, H. Torkashvand, A. Kerschbaum, M. Müller, S. Besendörfer, J. Heitmann, J. Friedrich   +7 more
wiley   +1 more source

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

Advanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao, Sriram Subramanian, Gianluca Memoli   +2 more
wiley   +1 more source

Community structure of zooplankton in the main entrance of Bahía Magdalena, México during 1996

Revista de Biología Tropical, 2001
The zooplankton community structure, including copepods, euphausiids, chaetognaths, and decapod larvae, was monitored during six circadian cycles using Bongo net (500 *m mesh net) samples from Bahía Magdalena, on the southwest coast of Baja California ...
Jaime Gómez-Gutiérrez, Ricardo Palomares-García, Sergio Hernández-Trujillo, Azucena Carballido-Carranza   +3 more
doaj