Results 61 to 70 of about 88,549 (210)

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Intraoperative fluid management in open gastrointestinal surgery: goal-directed versus restrictive

Clinics, 2012
OBJECTIVE: The optimal strategy for fluid management during gastrointestinal surgery remains unclear. Minimizing the variation in arterial pulse pressure, which is induced by mechanical ventilation, is a potential strategy to improve postoperative ...
Jun Zhang, Hui Qiao, Zhiyong He, Yun Wang, Xuehua Che, Weimin Liang   +5 more
doaj   +1 more source

Dynamic Arterial Elastance During Experimental Endotoxic Septic Shock: A Potential Marker of Cardiovascular Efficiency

Frontiers in Physiology, 2020
Dynamic arterial elastance (Eadyn), the ratio between pulse pressure variation (PPV) and stroke volume variation (SVV), has been suggested as a dynamic parameter relating pressure and flow.
Manuel Ignacio Monge Garcia, Pedro Guijo González, Paula Saludes Orduña, Manuel Gracia Romero, Anselmo Gil Cano, Antonio Messina, Andrew Rhodes, Maurizio Cecconi, Maurizio Cecconi   +8 more
doaj   +1 more source

Fatigue Crack Initiation and Growth in Nanocrystalline Ni at Multiple Length‐Scales

Advanced Engineering Materials, EarlyView.
Overview of miniaturized in situ SEM fatigue setup and resultant fatigue crack growth data for nanocrystalline Ni. The presented study focuses on the analysis of fatigue crack growth rate (FCGR) in focused ion beam‐notched microcantilevers prepared from nanocrystalline (NC) Ni as a model material.
Igor Moravcik, Alexander Jelinek, Markus Alfreider, Jutta Luksch, Anton Hohenwarter, Florian Schaefer, Christian Motz, Daniel Kiener   +7 more
wiley   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source

Pulse pressure variation and pleth variability index as predictors of fluid responsiveness in patients undergoing spinal surgery in the prone position

Therapeutics and Clinical Risk Management, 2018
Do-Hyeong Kim,1 Seokyung Shin,1 Ji Young Kim,1 Seung Hyun Kim,2 Minju Jo,2 Yong Seon Choi1 1Department of Anesthesiology and Pain Medicine, Anesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Republic of Korea ...
Kim DH, Shin S, Kim JY, Kim SH, Jo M, Choi YS   +5 more
doaj  

Characterization and modeling of supercritical CO2 pulse pressures: Effects of activator mass and discharge plate thickness

Rock Mechanics Bulletin
Utilizing a bespoke CO2 phase transition pulse pressure experimental system, we conducted pulse pressure characterization tests across various activator masses, CO2 filling pressures, and energy discharge plate thicknesses.
Erdi Abi, Qifu Zeng, Lin Fu, Mingjing Jiang, Jie Zhang, Fayou Wu, Mingwei Liu, Yafeng Han   +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

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Age‐Related Trends in Home Blood Pressure, Home Pulse Rate, and Day‐to‐Day Blood Pressure and Pulse Rate Variability Based on Longitudinal Cohort Data: The Ohasama Study

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2019
Background Home blood pressure is a more accurate prognosticator than office blood pressure and allows the observation of day‐to‐day blood pressure variability.
Michihiro Satoh, Hirohito Metoki, Kei Asayama, Takahisa Murakami, Ryusuke Inoue, Megumi Tsubota‐Utsugi, Ayako Matsuda, Takuo Hirose, Azusa Hara, Taku Obara, Masahiro Kikuya, Kyoko Nomura, Atsushi Hozawa, Yutaka Imai, Takayoshi Ohkubo   +14 more
doaj   +1 more source