Results 71 to 80 of about 27,449 (175)

Coccolithophore particulate inorganic and organic carbon ratios: An evaluation of acid decalcification methods

Limnology and Oceanography: Methods, EarlyView.
Abstract Accurate direct measurements of coccolithophore particulate inorganic and organic carbon ratios (PIC/POC) are crucial for understanding the physiology and role these microbes play in global ocean carbon flux. Direct measurements of POC are commonly obtained by acid fuming or applying acid directly to filters to dissolve PIC (CaCO3) prior to CN
Madison B. Cox, Robert F. Whitehead, Alison R. Taylor   +2 more
wiley   +1 more source

Development and Balance Evaluation for Land Use and Transport Interaction Using Node-Place Model and Data Envelopment Analysis

Journal of Advanced Transportation
To meet the evolving demands of land use and transport interaction (LUTI) assessment within China’s national territory spatial planning (NTSP) system, this paper introduces the level of development (LoD) and the level of matching (LoM) evaluation models,
Xiaoyi Ma, Hongjie He, Mingmin Liu, An Jin   +3 more
doaj   +1 more source

Anaerobic Corrosion Phenomena of Cast Iron and Copper in Artificial Groundwater at Elevated Temperature

Materials and Corrosion, EarlyView.
This study examines corrosion of copper and cast iron as candidate canister materials for high‐level radioactive waste disposal in contact with bentonite suspension. The influence of three electrolyte compositions on corrosion behavior under repository‐relevant conditions is assessed.
Louisa Panjiyar, Martin Ende, Christiane Stephan‐Scherb   +2 more
wiley   +1 more source

Mechanisms of Vein of Marshall-Related Tachyarrhythmias and the Impact of Ethanol Infusion

Reviews in Cardiovascular Medicine
The Ligament of Marshall (LOM) is a remnant of the embryonic sinus venosus and the left cardinal vein, containing a combination of fat, fibrous tissue, blood vessels, muscle bundles, nerve fibers, and ganglia.
Masateru Takigawa, Claire Martin, Pierre Jaïs   +2 more
doaj   +1 more source

Prenatal Genetic Testing for Beckwith‐Wiedemann Syndrome: Considerations, Challenges and Observations (A Real‐World Study)

Prenatal Diagnosis, EarlyView.
ABSTRACT Objective Prenatal genetic testing for imprinting disorders is rarely requested with the exception of Beckwith‐Wiedemann syndrome (BWS) which is associated with specific ultrasound findings (e.g., placental mesenchymal dysplasia, omphalocele). However, genetic testing for BWS is challenging as aberrant DNA methylation has to be addressed which
Melissa Connolly, Louise McClelland, Pierpaola Tannorella, Tanja Richter, Ester Mainini, Andreas Dufke, Annette Lischka, Matthias Begemann, Katja Eggermann, Thomas Eggermann, Silvia Russo   +10 more
wiley   +1 more source

Effect of Accelerated Aging on the Performances of 3D Printed Polylactic Acid‐Polyhydroxyalkanoate Specimens

Polymer Engineering &Science, EarlyView.
The accelerated aging behaviours on the FFF‐fabricated PLA‐PHA Specimens. ABSTRACT Despite the increasing use of biodegradable polymers in additive manufacturing, their long‐term durability remains insufficiently understood. The aim of this study to investigate the influence of accelerated aging on the performance of fused filament fabrication‐printed ...
Han Xu, Jiayu Chen, Yinshi Lu, Handai Liu, Farnoosh McDonagh, Evert Fuenmayor, Ian Major, Genfu Xiao, Ke Gong   +8 more
wiley   +1 more source

Deciphering Interfacial Electronic Interactions Between Iridium Oxide and Ni‐Based Supports for High‐Current‐Density Anion Exchange Membrane Water Electrolysis

Small, EarlyView.
This study develops binder‐free IrO2–Ni‐based electrodes through liquid‐phase synthesis to elucidate how Ni‐based support chemistry governs interfacial electronic interactions and oxygen evolution reaction (OER) performance. The IrO2–Ni2P electrode exhibits superior activity and durability, attributed to strong interfacial charge transfer that ...
Yeongbin Lee, Seohyeon Jang, Seokjin Hong, Seoyeon Jeong, Ju Young Kim, Wooseok Jeong, Hyeonseok Lee, Gyuhyeon Kim, Hyungbin Son, Sang Hyun Ahn, Inho Nam, Don‐Hyung Ha   +11 more
wiley   +1 more source

Recycling‐Induced Copper Contamination of a 42CrMo4 Quench and Tempering Steel—Scaling and Susceptibility to Hot Shortness

steel research international, EarlyView.
In this study, the susceptibility to copper‐induced hot shortness of the alloy 42CrMo4 is investigated by different hot tensile tests, as well as by a detailed analysis of the formed oxidation products. While an enrichment of metallic copper and a penetration of the grain boundaries are observed, no critical reduction of the tensile test properties can
Alexander Gramlich, Sindokht Shayan, Nima Babaei, Aleksei Klubakov, Lena Patterer, Ulrich Krupp, Hauke Springer   +6 more
wiley   +1 more source

Increasing the Reuse Potential of High‐Strength Steels by Extending the Fatigue Life through Surface Treatments

steel research international, EarlyView.
Surface reconditioning through mechanical and electrochemical polishing is shown to extend the fatigue life of predamaged 42CrMo4 steel by over 12 times. By removing ≈100 μm of surface material, surface‐driven fatigue damage is mitigated. This study introduces a reuse potential metric to evaluate fatigue recovery and support sustainable steel reuse. To
Ayush Shrivastava, Oguz Gulbay, Srinivasa Raghavan Raghuraman, Marion Kreins, Fabian Weber, Peter Starke, Alexander Gramlich, Ulrich Krupp   +7 more
wiley   +1 more source

HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13

steel research international, EarlyView.
This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann, Giorgia Lupi, Sylvain Dossin, Riccardo Casati, Mandanà Moshiri, Arne Röttger, Faraz Deirmina   +6 more
wiley   +1 more source